WO2021223714A1 - 升降护栏和具有其的护理床 - Google Patents
升降护栏和具有其的护理床 Download PDFInfo
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- WO2021223714A1 WO2021223714A1 PCT/CN2021/091933 CN2021091933W WO2021223714A1 WO 2021223714 A1 WO2021223714 A1 WO 2021223714A1 CN 2021091933 W CN2021091933 W CN 2021091933W WO 2021223714 A1 WO2021223714 A1 WO 2021223714A1
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- Prior art keywords
- rod
- lifting
- link
- guard
- telescopic rod
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
Definitions
- This application relates to the technical field of medical devices, and specifically to a lifting guardrail and a nursing bed having the same.
- Nursing bed is mainly composed of bed body, guardrail, headboard, footboard and accessories.
- the guardrail usually needs to have a lifting function to facilitate people to get on and off the bed.
- the railings of the guardrail will still be exposed to the patient's vision, which will produce unfriendly psychological hints to the patient, which is not conducive to the recovery of the patient's disease and physical and mental health.
- the lifting rod in the related art usually only has two upper and lower crossbars, and the distance between the two crossbars is too large, which easily reduces the protective effect.
- the lifting guardrail on both sides is a necessary accessory.
- the common lifting guardrail at home and abroad is roughly divided into four categories: round tube bending and splicing, two One-stage or three-stage vertical telescopic type, foldable, rotating and retractable medical bed.
- the first and third types are more common, but the first type requires manual disassembly every time the patient gets in and out of the bed, which is very inconvenient.
- the third type is more commonly used in hospitals, is relatively single, and does not comply with the load in the law and automatically drops slowly.
- the second and fourth types are relatively novel lifting guardrails without pinching hands.
- the second type is vertically retractable and has higher overall processing and installation accuracy, and it is more difficult to meet the slow decline after releasing the switch. Don't get caught up; the last one is currently a solution that is perfectly compatible with laws and regulations and all directions.
- the most common method of rotating and retracting lifting guardrails is to increase friction by sticking PU or other plastics on both sides of the lower rotating rod, so as to achieve the effect of slowly lowering after releasing the switch without pinching hands.
- the friction effect will become worse and worse, until the friction plate fails, and the overall cushioning effect is not good.
- lifting guardrails of common nursing beds are standard lifting guardrails.
- the lifting guardrail has a parallel lifting function, it cannot be guaranteed that the multiple main poles of the lifting guardrail are in parallel position during the lifting process of the lifting guardrail.
- the lifting guardrail is inclined or twisted during the lifting process, and the safety is low.
- This application aims to solve at least one of the technical problems existing in the prior art. For this reason, this application proposes a lifting guardrail.
- the lifting guardrail of the first aspect can improve the problem that the railing and the lifting driving mechanism of the existing lifting guardrail are still exposed when they are retracted.
- the second aspect of the lifting guardrail has simple structure, convenient operation and good protection effect.
- the third aspect of the lifting guardrail is equipped with a buffer mechanism, which can convert the variable speed rotation of the second link into a variable speed linear motion at the end of the motion, and the buffer effect is relatively good.
- the lifting guardrail keeps parallel during the lifting process, has good stability and high safety.
- This application also aims to propose a nursing bed using the above-mentioned lifting guardrail.
- the lifting guardrail includes: an upper guard bar; a lower guard bar; and a middle telescopic bar, the middle telescopic bar is arranged between the upper guard bar and the lower guard bar in a liftable manner.
- the lifting guardrail of the first aspect of the present application can improve the problem that the railing and the lifting driving mechanism of the existing lifting guardrail are still exposed when contracted, and its additional technical features are as follows:
- the lifting guardrail further includes: a first upper link, a second upper link, a first lower link, and a second lower link.
- the middle telescopic rod is located between the upper guard rod and the lower guard rod, and the middle telescopic rod includes a first telescopic section and a second telescopic section that are relatively slidable.
- the upper end of the first upper link is hinged to the upper guard bar, and the lower end of the first upper link is hinged to the first telescopic section.
- the upper end of the second upper link is hinged to the upper guard bar, and the lower end of the second upper link is hinged to the second telescopic section.
- the upper end of the first lower link is hinged to the first telescopic section, and the lower end of the first lower link is hinged to the lower guard rod.
- the upper end of the second lower link is hinged to the second telescopic section, and the lower end of the second lower link is hinged to the lower guard rod.
- the two ends of the first upper link are respectively hinged to the upper guard bar and the first telescopic section.
- Both ends of the second upper connecting rod are respectively hinged to the upper guard rod and the second telescopic section.
- Both ends of the first lower connecting rod are hinged to the first telescopic section and the lower guard rod respectively.
- the two ends of the second lower link are respectively hinged to the second telescopic section and the lower guard bar.
- the first upper link and the second upper link can drive the upper guardrail.
- the rod moves in a direction away from the lower guard rod while the first lower link and the second lower link can drive the middle telescopic rod to move away from the lower guard rod, that is, the upper guard rod and the middle telescopic rod can achieve linkage.
- the middle telescopic rod is vertically located between the upper guardrail and the lower guardrail. When the lifting guardrail is opened, the middle telescopic rod can be used as the middle railing of the lifting guardrail, avoiding the excessive distance between the upper guardrail and the lower guardrail. Play a protective role.
- the lower end of the first upper link and the upper end of the first lower link are drivingly connected by a first synchronization structure.
- the first synchronization structure is arranged so that the movement of one of the first upper link and the first lower link can drive the other to move, thereby realizing the up and down synchronous movement of the lifting guardrail, so that the lifting guardrail can be folded or retracted.
- the movement of the upper guard rod and the middle telescopic rod can be consistent.
- the first synchronization structure includes a first gear and a second gear; the first gear is fixed to the lower end of the first upper link, and the second gear is fixed to the first lower link. At the upper end, the first gear meshes with the second gear.
- the first synchronization structure includes a first gear and a second gear respectively connected to the first upper link and the first lower link, that is, the first upper link and the first lower link are synchronously connected by gears.
- the lower end of the second upper link and the upper end of the second lower link are drivingly connected by a second synchronization structure.
- the second synchronization structure is arranged so that the movement of one of the second upper link and the second lower link can drive the other to move, thereby realizing the up and down synchronous movement of the lifting guardrail, so that the lifting guardrail can be stowed or When opened, the movement of the upper guard rod and the middle telescopic rod can be consistent.
- the second synchronization structure includes a third gear and a fourth gear; the third gear is fixed to the lower end of the second upper link, and the fourth gear is fixed to the second lower link. At the upper end, the third gear meshes with the fourth gear.
- the second synchronization structure includes a third gear and a fourth gear respectively connected to the second upper link and the second lower link, that is, the second upper link and the second lower link are synchronously connected by gears.
- the lower end of the first lower link and the lower end of the second lower link are drivingly connected by a third synchronization structure.
- the lifting guardrail since the lifting guardrail has a certain length, the first lower link and the second lower link are arranged at intervals in the length direction of the lifting guardrail, so the lower end of the first lower link and the lower end of the second lower link Relative to the rotation of the lower guardrail, there is a delay and asynchrony.
- the arrangement of the third synchronization structure can make the lower end of the first lower link and the lower end of the second lower link move synchronously, facilitating the retracting or opening of the lifting guardrail.
- the third synchronization structure includes a first synchronization wheel, a second synchronization wheel and a flexible transmission member; the first synchronization wheel is fixed at the lower end of the first lower link, and the second synchronization wheel is fixed At the lower end of the second lower link, the flexible transmission member is wound on the first synchronous wheel and the second synchronous wheel in a "8"-shaped winding method.
- the third synchronization structure is a flexible transmission structure, which is suitable for the synchronization transmission of components between larger distances.
- the flexible transmission part is wound around the first and second synchronization wheels in a "8"-shaped winding method. Up, the rotation direction of the first synchronization wheel and the second synchronization wheel are opposite, so that the first lower link and the second lower link can synchronously drive the middle telescopic rod to rise or fall.
- the lifting guardrail has an open state and a stowed state.
- the open state the distance between the upper guard bar and the lower guard bar is larger than that in the stowed state. Describe the spacing between the guard rails; when the lifting guardrail is in an open state, the middle telescopic rod is in an extended state; when the lifting guardrail is in a retracted state, the middle telescopic rod is in a shortened state.
- the middle telescopic rod when the lifting guardrail is in an open state, the middle telescopic rod is extended, so that the middle telescopic rod can function as a middle railing, and it has a better protective effect.
- the middle telescopic rod When the lifting guardrail is in the stowed state, the middle telescopic rod is in a shortened state, so that the middle telescopic rod can also be stowed, so that the volume of the entire lifting guardrail in the stowed state can be reduced.
- the intermediate telescopic rod further includes a lock assembly and an unlocking assembly.
- the lock assembly is used to lock the intermediate telescopic rod in an extended state
- the unlocking assembly is used to release the locking assembly from the intermediate telescopic rod. locking.
- the lock assembly can lock the intermediate telescopic rod in the extended state, so that the lifting guardrail can be stably maintained in the open state, and the lifting guardrail is prevented from automatically switching to the stowed state under the action of the gravity of the upper guard rod.
- the unlocking component can release the locking of the middle telescopic rod by the locking component, which is convenient for the lifting guardrail to be stowed.
- the first telescopic section is provided with a lock hole
- the lock assembly is provided on the second telescopic section
- the lock assembly includes a lock pin for inserting into the lock hole
- the unlocking assembly includes a push block And button, the push block is used to push the lock pin to move so that the lock pin exits the lock hole, the button is arranged at one end of the middle telescopic rod, and the button is used to trigger the push block action.
- the structure of the lock assembly and the unlock assembly is simple, and the setting of the button is convenient for the user to drive the lock assembly to unlock the middle telescopic rod.
- a first accommodating groove is provided on the upper guardrail, and a second accommodating groove is provided on the lower guardrail; when the lifting guardrail is in the retracted state, the upper guardrail and the lower guardrail The rods are close together, the middle telescopic rod is accommodated in the first accommodating groove and the second accommodating groove, the first upper connecting rod and the second upper connecting rod are both accommodated in the first accommodating groove, the first lower connecting rod and the second lower connecting rod It is accommodated in the second accommodating groove.
- the middle telescopic rod is accommodated in the first accommodating groove and the second accommodating groove
- the first upper link and the second upper link are both accommodated in the first accommodating groove
- the first The lower connecting rod and the second lower connecting rod are housed in the second accommodating groove, which can reduce the space occupied by the lifting guardrail when stowed, and can also avoid the intermediate telescopic rod, the first upper connecting rod, the second upper connecting rod, and the second upper connecting rod.
- the exposure of the upper link and the second lower link within the visible range of the user causes a bad user experience.
- the lifting guardrail in the second aspect of the application has a simple structure, convenient operation and good protection effect, and its additional technical features are as follows:
- the lifting guardrail further includes: an upper lifting assembly, and the upper lifting assembly is arranged between the upper guard rod and the intermediate telescopic rod, so that the The upper guard rod and the middle telescopic rod are close to or far away from each other; the lower lifting assembly, the lower lifting assembly is arranged between the lower guard rod and the middle telescopic rod, so that the lower guard rod and the middle telescopic rod The telescopic rods are close to or far away from each other; a synchronization component, the synchronization component is arranged between the upper lifting component and the lower lifting component, so that the upper lifting component and the lower lifting component perform synchronous lifting actions.
- an upper lifting assembly is provided between the upper guard bar and the middle telescopic rod
- a lower lifting assembly is provided between the lower guard bar and the middle telescopic rod.
- the upper lifting assembly includes an upper lifting rod, and both ends of the upper lifting rod are respectively rotatably connected to the upper guard rod and the middle telescopic rod;
- the lifting assembly includes a lower lifting rod, and both ends of the lower lifting rod are respectively rotatably connected with the lower guard rod and the middle telescopic rod;
- the synchronization assembly includes a first matching gear and a second matching gear that mesh with each other, so The first matching gear is provided at an end of the upper lifting rod close to the middle telescopic rod, and the second matching gear is provided at an end of the lower lifting rod close to the middle telescopic rod.
- the intermediate telescopic rod includes a relatively slidable second telescopic section and a first telescopic section
- the upper lifting rod includes a second upper connecting rod and a first upper connecting rod.
- the lower lifting rod includes a second lower link and a first lower link
- the second upper link and the second lower link are correspondingly fitted on the second telescopic section
- the first upper link The connecting rod and the first lower connecting rod are correspondingly fitted on the first telescopic section
- the synchronization assembly is provided with two, and one synchronization assembly is respectively provided on the second upper connecting rod and the second lower connecting rod. Between the rods, another synchronization assembly is provided between the first upper link and the first lower link.
- the lifting guardrail further includes a drive assembly provided on the intermediate telescopic rod, and the drive assembly is adapted to drive the second telescopic section and the first telescopic section.
- a telescopic section moves in directions away from each other or close to each other.
- the upper guardrail and the intermediate telescopic rod both have an open position and a closed position in the lifting direction
- the lifting guardrail further includes a locking assembly
- the lock The stop component is adapted to lock the upper lifting component and/or the lower lifting component, so that the upper guard rod and the intermediate telescopic rod are maintained in the open position or the folded position.
- the locking assembly includes a rigid hook provided on an end of the upper lifting assembly facing the upper guard rod, and an elastic hook provided on the upper guard rod
- the opening directions of the rigid hook and the elastic hook are opposite, and during the movement of the upper guard bar from the folded position toward the open position, the rigid hook is suitable for making the The elastic hook undergoes elastic deformation, and after the elastic deformation occurs, the elastic hook engages with the rigid hook.
- the locking assembly further includes an unlocking member, the unlocking member is provided on the upper guard bar, and the unlocking member is adapted to make the elastic hook elastic Deformed so as to disengage the elastic hook and the rigid hook.
- the lifting guardrail further includes: a buffer member, the buffer being provided between the upper lifting component and the upper guard rod, and/or the upper lifting component and the middle telescopic Between the rods, and/or between the lower lifting assembly and the lower guard rod, and/or between the lower lifting assembly and the middle telescopic rod, the buffer member is suitable for slowing down the lifting speed of the upper guard rod and the middle telescopic rod.
- the buffer member is at least one of an anti-collision sleeve, a damper, and a torsion spring.
- the lifting guardrail of the third aspect of the present application is provided with a buffer mechanism, which can convert the variable speed rotation of the second link into a variable speed linear motion at the end of the motion.
- the buffer effect is relatively good.
- the lifting guardrail further includes: a link mechanism, and both ends of the intermediate telescopic rod are provided with the link mechanism, and the link mechanism includes a first link mechanism. Rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the middle telescopic rod and the other end is rotatably connected to the upper guard rod, one end of the second connecting rod is rotatably connected to the middle telescopic rod and the other One end is rotatably connected to the lower guard rod; a buffer mechanism, the buffer mechanism is provided between the second link and the lower guard rod, the buffer mechanism includes a linkage member and a variable resistance member, and the linkage member has Connect the movement end of the variable resistance member, one end of the linkage member is connected to the second link to convert the variable speed rotation of the second link into the variable speed linear movement of the movement end, the variable resistance The member is arranged on the lower guard bar, and the variable resistance member is configured to receive the greater the speed, the greater
- variable-speed rotation of the second link can be converted into the variable-speed linear motion at the end of the movement by setting the buffer mechanism, and the higher the speed, the greater the resistance of the variable resistance member, the lifting guardrail can be maintained
- the slower descent effect and excellent cushioning effect can effectively avoid pinching fingers. And because friction cushioning is not used, there will be no friction loss of parts, and the overall service life is relatively long.
- variable resistance member is a damper
- the linkage member is a connecting rod, one end of the connecting rod is rotatably connected to the second connecting rod, and the connecting rod The other end is configured as the moving end, and the moving end is rotatably connected to the damper.
- the lifting guardrail further includes: a rolling body, the rolling body is provided on the moving end of the connecting rod; a support, the support is provided on the On the lower guard bar, the rolling body abuts on the support member.
- the damper is partially abutted on the support, and a fixing seat is provided on the lower guard rod, and the fixing seat is connected to the damper.
- the upper guard bar has a first accommodating space, the first connecting rod is provided in the first accommodating space; the lower guard bar has a second accommodating space , The second connecting rod is arranged in the second accommodating space.
- the buffer mechanism is provided in the second accommodating space, and the buffer mechanism is provided at an end of the second connecting rod away from the lower guard rod On the side.
- the second accommodating space is configured such that when the upper guard rod is lowered to fit the lower guard rod, the intermediate telescopic rod and the linkage mechanism It can be stored in the second accommodating space.
- the upper guard bar and the lower guard bar have the same structure, and the lower guard bar includes a first connecting plate and a second connecting plate connecting the first connecting plate A board, the second accommodating space is defined between the second connecting board and the first connecting board.
- the lower guard rod further includes a sheath, and both ends of the lower guard rod in the length direction are provided with the sheath, and the end of the first connecting plate And the end of the second connecting plate is arranged in the sheath.
- the lifting guardrail in the fourth aspect of the present application keeps parallel during the lifting process, has good stability and high safety, and its technical characteristics are as follows:
- the lifting guardrail includes: at least two main rods and at least three connecting rods;
- the middle telescopic rod is a telescopic rod and includes at least two telescopic sections, the at least two telescopic sections include a first telescopic section and a second telescopic section;
- the connecting rod includes: a first A lower link, a second lower link and a third link, one end of the first lower link is rotatably connected to the lower guard rod, and the other end of the first lower link is rotatably connected to the telescopic Section, one end of the second lower link is rotatably connected to the lower guard bar, the other end of the second lower link is rotatably connected to the telescopic section, and one end of the third link is rotated It is connected to the lower guard rod, and the other end of the third link is rotatably connected to the telescopic section.
- the lifting guardrail of the embodiment of the present application by arranging a lower guard rod and a middle telescopic rod, and providing at least three pivotally connected connecting rods between the lower guard rod and the middle telescopic rod, the difference between the lower guard rod and the middle telescopic rod is realized.
- the height of the room can be easily adjusted to suit the patient.
- the third connecting rod and the first lower connecting rod are both pivotally connected to the first telescopic section, and the other end of the third connecting rod and the first lower connecting rod are also pivotally connected to A parallelogram structure is formed on the lower guard bar, which can ensure that when the lower guard bar is raised and lowered relative to the lower guard bar, it can always be parallel to the lower guard bar, thereby preventing the middle telescopic bar from twisting or deflection during the lifting process. Move, improve the safety performance of the lifting guardrail.
- the lifting guardrail according to the fourth aspect of the present application may also have the following additional technical features:
- the main rod further includes an upper guard rod, and the upper guard rod and the lower guard rod are located on both sides of the middle telescopic rod;
- the connecting rod includes : A first upper link and a second upper link, one end of the first upper link is rotatably connected to the upper guard rod, and the other end of the first upper link is rotatably connected to the telescopic section One end of the second upper link is rotatably connected to the upper guard rod, the other end of the second upper link is rotatably connected to the telescopic section, and the second upper link is connected to the first
- the telescopic sections connected by an upper link are different.
- the first upper link is connected to the first telescopic section, and the shaft of the first lower link and the shaft of the first upper link are A first engagement assembly is connected between; the second upper link is connected to the second telescopic section, and a second lower link is connected between the shaft of the second lower link and the shaft of the second upper link. Engagement components.
- At least one of the lower guard rod and the upper guard rod is provided in a receiving groove that opens toward the middle telescopic rod, and the middle telescopic rod is shortened to the second When a length is set, at least part of the intermediate telescopic rod is located in the containing groove.
- the lower guard rod and the upper guard rod are both provided with the receiving groove, and when the intermediate telescopic rod is shortened to the first set length, A part of the intermediate telescopic rod is located in one of the accommodating grooves, and another part of the intermediate telescopic rod is located in the other of the accommodating grooves.
- a torsion spring is provided at the rotating shaft of at least one of the connecting rods.
- the telescopic sections of the intermediate telescopic rod are all pipe sections, and a plurality of the pipe sections are sequentially sleeved along the length direction of the intermediate telescopic rod, and are located at all of the inner layer.
- a guide block is connected to the pipe section, and the guide block is used to slide in the pipe section located on the outer layer.
- the lifting guardrail is provided with at least one locking structure, and the locking structure includes a locking portion and an unlocking portion, and the locking portion is used to When the intermediate telescopic rod is extended to a second set length, it is locked, the unlocking portion is used to unlock the locking portion when triggered, and the locking portion satisfies at least one of the following conditions: the lock The fixing part is used for locking between the main rod and the connecting rod; the locking part is used for locking between the two adjacent telescopic rods of the middle telescopic rod.
- the locking portion is used for locking between the main rod and the connecting rod, and the locking portion includes: a first hook, and A hook is connected to the main rod through a rotating shaft; a second hook, the second hook is integrally formed on the connecting rod, and the second hook is located in the direction of the rotating shaft of the connecting rod.
- the middle telescopic rod is shortened to a first set length
- the second hook is separated from the first hook, and the middle telescopic rod is extended to a second setting
- the second hook is matched with the first hook
- the retaining elastic member is connected between the main rod and the first hook, and the retaining elastic member is used for
- the intermediate telescopic rod is at the second set length, the first hook is driven to be clamped on the second hook.
- each The unlocking parts of the locking structure are all pull tabs connected to the first hook, and both ends of the main rod are respectively provided with end grooves for accommodating the pull tabs.
- the nursing bed according to the embodiment of the present application includes the lifting guardrail according to any one of the foregoing.
- the upper guardrail and the middle telescopic rod of the lifting guardrail of the nursing bed can realize linkage to realize the retracting or opening of the lifting guardrail.
- the middle telescopic rod is vertically located between the upper guardrail and the lower guardrail. When the lifting guardrail is opened, the middle telescopic rod can be used as the middle railing of the lifting guardrail, avoiding the excessive distance between the upper guardrail and the lower guardrail. Play a protective role.
- the nursing bed includes the lifting guardrail of the aforementioned second aspect embodiment
- the overall structure of the nursing bed is simple, the operation is convenient, and the distance between the upper guardrail and the lower guardrail can be prevented from being too large And the resulting cannot be protected.
- the lifting guardrail can be lifted up and down, wherein the buffer mechanism of the lifting guardrail can convert the variable speed rotation of the second link into the variable speed linear motion at the end of the motion, through variable resistance
- the lifting guardrail maintains a slower descending effect.
- the cushioning effect of the nursing bed is better, which can effectively prevent the fingers from being pinched. And because the friction cushioning method is not used, There is no friction loss of parts, and the overall service life is relatively long.
- a third link and a first lower link are provided between the lower guardrail and the middle telescopic rod of the lifting guardrail, and both are pivotally connected to the first telescopic section,
- the other ends of the third connecting rod and the first lower connecting rod are also pivotally connected to the lower guard rod, thus forming a parallelogram structure, which can ensure that the upper guard rod is always in contact with the lower guard rod when it is raised and lowered relative to the lower guard rod.
- the guard bars are parallel, so as to prevent the middle telescopic bar from twisting or shifting during the lifting process, and improve the safety performance of the nursing bed during use.
- Fig. 1 is a schematic structural diagram of a lifting guardrail provided by an embodiment of the first aspect of the application.
- Fig. 2 is a schematic diagram of the open state of the lifting guardrail provided by the embodiment of the first aspect of the application.
- FIG. 3 is a schematic diagram of the retracted state of the lifting guardrail provided by the embodiment of the first aspect of the application.
- Fig. 4 is a schematic structural diagram of another lifting guardrail in the embodiment of the first aspect of the application.
- FIG. 5 is a schematic diagram of a partial enlarged structure at V in FIG. 2.
- Figure 6 is a schematic diagram of the structure of the lock assembly and the unlock assembly.
- Fig. 7 is a perspective view of the lifting guardrail in the open position of the embodiment of the second aspect of the application.
- Fig. 8 is a front view of the lifting guardrail in the open position of the embodiment of the second aspect of the application.
- Fig. 9 is a cross-sectional view of the lifting guardrail in the open position of the embodiment of the second aspect of the application.
- FIG. 10 is a schematic diagram of a partial enlarged structure of area A in FIG. 9.
- Fig. 11 is a perspective view of the lifting guardrail in the folded position of the embodiment of the second aspect of the application.
- Fig. 12 is a front view of the lifting guardrail in the folded position of the embodiment of the second aspect of the application.
- Fig. 13 is a cross-sectional view of the lifting guardrail in the folded position of the embodiment of the second aspect of the application.
- FIG. 14 is a schematic structural diagram of an embodiment of the lifting guardrail in the third aspect of the application.
- 15 is a schematic diagram of the three-dimensional structure of the lifting guardrail according to the embodiment of the third aspect of the application.
- FIG. 16 is a schematic structural diagram of the lifting guardrail of the embodiment of the third aspect of the application when it is lowered and retracted.
- FIG. 17 is a schematic diagram of the three-dimensional structure of the lifting guardrail of the embodiment of the fourth aspect of the application when it does not have an upper guard bar when it is opened
- FIG. 18 is a schematic diagram of the three-dimensional structure of the embodiment of the fourth aspect of the application when the lifting guardrail is opened.
- FIG. 19 is a schematic diagram of the three-dimensional structure of the lifting guardrail when the embodiment of the fourth aspect of the application is lowered.
- 20 is a front view of the lifting guardrail of the embodiment of the fourth aspect of the application when it is raised.
- Fig. 21 is a front view from another angle when the lifting guardrail of the embodiment of the fourth aspect of the application is raised.
- Figure 22 is a top view of an embodiment of the lifting guardrail in the fourth aspect of the application.
- Fig. 23 is a cross-sectional view taken along line A-A in Fig. 22;
- Fig. 24 is an enlarged view of B in Fig. 23.
- Fig. 25 is an enlarged view of C in Fig. 23.
- Figure 26 is an enlarged view of D in Figure 23.
- Fig. 27 is a cross-sectional view of the embodiment of the fourth aspect of the application when the lifting guardrail is lowered.
- Fig. 28 is a side view of the lifting guardrail according to the embodiment of the fourth aspect of the application.
- Synchronization assembly 3b first matching gear 31b, second matching gear 32b,
- Locking assembly 4b rigid hook 41b, elastic hook 42b, unlocking piece 43b,
- Buffer 5b anti-collision sleeve 51b, second slider 62b,
- Link mechanism 40c first link 410, second link 420, buffer mechanism 50c,
- Linkage 510 variable resistance member 520, connecting block 5201, rolling element 60c, support member 70c,
- the locking structure 5d, the locking portion 51d, the first hook 511, the second hook 512, the retaining elastic member 513, and the unlocking portion 52d is a first hook 511, the second hook 512, the retaining elastic member 513, and the unlocking portion 52d.
- the present application provides a lifting guardrail 100, including: an upper guard bar 10, a lower guard bar 20, and a middle telescopic rod 30, wherein the middle telescopic rod 30 is set up on the upper guard bar 10 so as to be liftable. And the lower guard bar 20.
- the lifting guardrail 100 of the present application can realize a height change and has a lifting function.
- an embodiment of the first aspect of the present application provides a lifting guardrail 100.
- the lifting guardrail 100 includes an upper guardrail 10, a lower guardrail 20, a middle telescopic rod 30, a first upper link 24, and a second upper link.
- the rod 25 the first lower link 21 and the second lower link 22.
- the middle telescopic rod 30 is located between the upper guard rod 10 and the lower guard rod 20, and the middle telescopic rod 30 includes a first telescopic section 31 and a second telescopic section 32 that are relatively slidable.
- the upper end of the first upper link 24 is hinged to the upper guard bar 10, and the lower end of the first upper link 24 is hinged to the first telescopic section 31.
- the upper end of the second upper link 25 is hinged to the upper guard bar 10, and the lower end of the second upper link 25 is hinged to the second telescopic section 32.
- the upper end of the first lower link 21 is hinged to the first telescopic section 31, and the lower end of the first lower link 21 is hinged to the lower guard rod 20.
- the upper end of the second lower link 22 is hinged to the second telescopic section 32, and the lower end of the second lower link 22 is hinged to the lower guard rod 20.
- the lifting guardrail 100 has an open state and a stowed state. As shown in FIG. 2, in the open state, the distance between the upper guard bar 10 and the lower guard bar 20 is larger than the upper guard bar 10 and the lower guard bar 20 in the stowed state. The spacing between.
- the middle telescopic rod 30 is in an extended state; as shown in FIG. 3, when the lifting guardrail 100 is in a stowed state, the middle telescopic rod 30 is in a shortened state.
- the middle telescopic rod 30 is extended, so that the middle telescopic rod 30 can function as a middle railing, and better protect.
- the middle telescopic rod 30 When the lifting guardrail 100 is in the stowed state, the middle telescopic rod 30 is in a shortened state, so that the middle telescopic rod 30 can also be stowed, which can reduce the volume of the entire lifting guardrail 100 in the stowed state.
- the upper guardrail 10 When the lifting guardrail 100 is stowed or opened, the upper guardrail 10 is always in a horizontal state.
- the upper guard bar 10 is provided with a first accommodating groove 11a
- the slot of the first accommodating groove 11a faces the lower guard bar 20
- the lower guard bar 20 is provided with a second accommodating groove 21a.
- the notch of 21a faces the upper guard bar 10.
- the upper end of the first upper link 24 and the upper end of the second upper link 25 are both hinged in the first receiving groove 11a
- the lower end of the first lower link 21 and the lower end of the second lower link 22 are both hinged to the second receiving ⁇ 21a.
- the middle telescopic rod 30 is accommodated in the first accommodating groove 11a and the second accommodating groove 21a, and the first upper link 24 and the second upper link
- the connecting rods 25 are all accommodated in the first accommodating groove 11a, and the first lower connecting rod 21 and the second lower connecting rod 22 are accommodated in the second accommodating groove 21a, which can reduce the space occupied by the lifting guardrail 100 when it is stowed, and can also It is avoided that the middle telescopic rod 30, the first upper link 24, the second upper link 25, the second upper link 25, and the second lower link 22 are exposed in the visible range of the user, resulting in a bad user experience.
- the upper end of the first upper link 24 and the hinge position of the upper guard rod 10 are between the upper end of the second upper link 25 and the hinge position of the upper guard rod 10
- the distance is greater than the distance between the lower end of the first upper link 24 and the hinged position of the first telescopic section 31 and the distance between the lower end of the second upper link 25 and the hinged position of the second telescopic section 32, the first upper link 24 and
- the second upper link 25 is arranged in an inverted figure; the distance between the upper end of the first lower link 21 and the hinge position of the first telescopic section 31 and the distance between the upper end of the second lower link 22 and the hinge position of the second telescopic section 32 Less than the distance between the hinged position of the lower end of the first lower link 21 and the lower guard bar 20 and the hinged position of the lower end of the second lower link 22 and the lower guard bar 20, the first lower link 21 and the second lower link
- the rod 22 is arranged in a figure eight.
- the first upper link 24 and the upper guard bar 10 are hinged, the first upper link 24 and the first telescopic section 31
- the hinge joint of the first lower link 21 and the lower guard rod 20, the hinge joint of the second lower link 22 and the second telescopic section 32, and the hinge joint of the second lower link 22 and the lower guard rod 20 can all be twisted.
- Springs, gas springs, damping rods and other components with buffering function can be hinged.
- a torsion spring is used at the hinge.
- the first upper link 24 and the second upper link 25 may be arranged in a figure eight, and the first lower link 21 and the second lower link 22 may be arranged in an inverted figure.
- the middle telescopic rod 30 is in an extended state, and when the lifting guardrail 100 is in an open state, the middle telescopic rod 30 is in a shortened state.
- first upper link 24 and the second upper link 25 may be arranged in a cross
- first lower link 21 and the second lower link 22 may also be arranged in a cross
- the first upper link 24 and the second upper link 25 rotate relative to the upper guard rod 10 under the action of the gravity of the upper guard rod 10, so that the first telescopic rod 30 is extended and retracted.
- the section 31 and the second telescopic section 32 move relative to each other (making the middle telescopic rod 30 shorten), and the relative movement of the first telescopic section 31 and the second telescopic section 32 can drive the first lower link 21 and the second lower link 22 to lower the protection relative to each other.
- the rod 20 rotates, the first upper link 24, the second upper link 25, the first lower link 21 and the second lower link 22 move, which can drive the upper guard rod 10 and the middle telescopic rod 30 to approach the lower guard rod 20
- the first upper link 24 and the second upper link 25 can drive the upper guard rod 10 to move away from the lower guard rod 20, and the first lower link 21
- the second lower connecting rod 22 can drive the middle telescopic rod 30 to move away from the lower guard rod 20, that is, the upper guard rod 10 and the middle telescopic rod 30 can achieve linkage.
- the middle telescopic pole 30 is vertically located between the upper guardrail 10 and the lower guardrail 20. When the lifting guardrail 100 is opened, the middle telescopic pole 30 can be used as the middle railing of the lifting guardrail 100 to avoid the upper guardrail 10 and the lower guardrail. The distance between 20 is too large to play a protective role.
- the first telescopic section 31 is a sleeve rod
- the second telescopic section 32 is a sliding rod
- the sliding rod is a hollow structure.
- the lower end of the second upper link 25 and the upper end of the second lower link 22 are both hinged to One end of the second telescopic section 32, the other end of the second telescopic section 32 is inserted into the first telescopic section 31, a slider is fixed in the first telescopic section 31 near the socket, and the slider is made of self-lubricating material, such as POM (polyformaldehyde, thermoplastic crystalline polymer), nylon, brass, etc., the second telescopic section 32 slides relative to the first telescopic section 31 and is always in contact with the slider, the slider is between the first telescopic section 31 and the second telescopic section 32 The sliding provides lubricant, reduces the friction between the first telescopic section 31 and the second telescopic section 32, and facilitates the opening or closing of the lifting
- first synchronization structure enables the movement of one of the first upper link 24 and the first lower link 21 to drive the other movement, thereby realizing the up and down synchronous movement of the lifting guardrail 100, so that the lifting guardrail 100 can be stowed or opened At this time, the movement of the upper guard bar 10 and the middle telescopic bar 30 can be consistent.
- the first synchronization structure includes a first gear 41a and a second gear 61a; the first gear 41a is fixed to the lower end of the first upper link 24, the first gear 41a is rotatably connected to the first telescopic section 31, and the second gear 61a is fixed to the upper end of the first lower link 21, the second gear 61a is rotatably connected to the first telescopic section 31, and the first gear 41a is externally meshed with the second gear 61a, that is, the first upper link 24 and the first lower link 21 is connected by gear synchronous transmission, which not only has a good synchronization effect, but also has a simple structure, which will not increase the structure of the lifting guardrail 100.
- the first synchronization structure can also be in other structural forms.
- the first synchronization structure includes a first pulley, a second pulley, and a transmission belt.
- the first pulley is fixedly connected to the lower end of the first upper link 24.
- the first pulley is rotatably connected to the first telescopic section 31
- the second pulley is fixedly connected to the upper end of the first lower link 21
- the second pulley is rotatably connected to the first telescopic section 31
- the transmission belt is wound in accordance with the "8"
- the method is arranged around the first pulley and the second pulley, so that the rotation directions of the first upper link 24 and the first lower link 21 relative to the first telescopic section 31 are opposite.
- the lower end of the second upper link 25 and the upper end of the second lower link 22 are drivingly connected by a second synchronization structure.
- the arrangement of the first synchronization structure and the second synchronization structure enables the movement of one of the second upper link 25 and the second lower link 22 to drive the other movement, thereby realizing the up and down synchronous movement of the lifting guardrail 100, so that the lifting guardrail 100 When retracted or opened, the movement of the upper guard rod 10 and the middle telescopic rod 30 can be consistent.
- the second synchronization structure includes a third gear 51a and a fourth gear 71a; the third gear 51a is fixed to the lower end of the second upper link 25, and the third gear 51a is rotatably connected to the second telescopic section 32.
- the four gear 71a is fixed to the upper end of the second lower link 22, the fourth gear 71a is rotatably connected to the second telescopic section 32, and the third gear 51a is externally meshed with the fourth gear 71a, that is, the second upper link 25 and the second lower link 25
- the connecting rod 22 is connected by a gear synchronous transmission, which not only has a good synchronization effect, but also has a simple structure, and does not additionally increase the structure of the lifting guardrail 100.
- the second synchronization structure may also have other forms, and the second synchronization structure in other embodiments may refer to the first synchronization structure.
- the first synchronization structure and the second synchronization structure may be the same or different.
- the lifting guardrail 100 also has a certain length.
- the first lower link 21 and the second lower link 22 are arranged at intervals in the length direction of the lifting guardrail 100, so the first lower link
- the rotation of the lower end of the lower end 21 and the lower end of the second lower link 22 relative to the lower guard rod 20 may be delayed and out of synchronization.
- the lower end of the first lower link 21 and the lower end of the second lower link 22 are drivingly connected by a third synchronization structure.
- the arrangement of the third synchronization structure can make the lower end of the first lower link 21 and the lower end of the second lower link 22 move synchronously, facilitating the stowing or opening of the lifting guardrail 100, and avoiding the lower end of the first lower link 21 and the second
- the lower end of the second lower link 22 is too far apart to rotate synchronously, and the risk of the first lower link 21 and the second lower link 22 being unable to rotate synchronously due to rotating friction and other reasons can also be reduced.
- the third synchronizing structure includes a first synchronizing wheel 62a, a second synchronizing wheel 72a and a flexible transmission member 73a; the first synchronizing wheel 62a is fixed to the lower end of the first lower link 21, and the first synchronizing wheel 62a is rotatably connected On the lower guard bar 20, the second synchronous wheel 72a is fixed to the lower end of the second lower link 22, the second synchronous wheel 72a is rotatably connected to the lower guard bar 20, and the flexible transmission member 73a is wound around the first in an "8" shape.
- a synchronizing wheel 62a and a second synchronizing wheel 72a is wound around the first in an "8" shape.
- first lower link 21 and the second lower link 22 are arranged in a figure eight shape, the rotation directions of the first lower link 21 and the second lower link 22 relative to the lower guard rod 20 are opposite, and the flexible transmission member 73a is marked with "8". ""-Shaped winding method is wound on the first synchronization wheel 62a and the second synchronization wheel 72a, which can ensure that the rotation directions of the first synchronization wheel 62a and the second synchronization wheel 72a are opposite, so that the first lower link 21 and the second lower link The connecting rod 22 rotates synchronously in the opposite direction.
- the flexible transmission member 73a may be, for example, a transmission belt, a transmission chain, a steel wire rope, etc. In this embodiment, the flexible transmission member 73a is a steel wire rope.
- the middle telescopic bar 30 also includes a lock assembly and an unlock assembly.
- the lock assembly is used to lock the intermediate telescopic rod 30 in the extended state
- the unlock assembly is used to unlock the intermediate telescopic rod 30 by the lock assembly.
- the lock assembly can lock the intermediate telescopic rod 30 in the extended state, so that the lifting guardrail 100 can be stably maintained in the open state, and avoiding the lifting guardrail 100 from automatically switching to the stowed state under the action of the gravity of the upper guard rod 10.
- the unlocking component can release the locking of the middle telescopic rod 30 by the locking component, so that the lifting guardrail 100 is convenient to be stowed.
- the first telescopic section 31 is provided with a lock hole 311a
- the lock assembly is provided on the second telescopic section 32;
- the lock assembly includes a lock pin 81a for inserting into the lock hole 311a, and
- the unlock assembly includes a push block 83a and
- the button 85a and the push block 83a are used to push the lock pin 81a to move so that the lock pin 81a exits the lock hole 311a, the button 85a is arranged at one end of the middle telescopic rod 30, and the button 85a is used to trigger the action of the push block 83a.
- the lock assembly also includes a lock body 80a.
- the lock body 80a is fixedly connected to the second telescopic section 32.
- the lock pin 81a is connected to the lock shell through the first spring 82a.
- the lock pin 81a can move relative to the lock shell.
- the expansion and contraction direction of the telescopic rod 30 is vertical.
- the unlocking assembly includes a push block 83a, a push rod 84a and a button 85a.
- the push rod 84a passes through the hollow second telescopic section 32.
- the button 85a is connected to one end of the push rod 84a.
- the button 85a extends out of the second telescopic section 32 away from the second telescopic section 32.
- One end of the telescopic section 31, the push block 83a is connected to the lock body 80a through the second spring 86a, the user-driven button 85a can push the push block 83a through the push rod 84a to overcome the elastic force of the second spring 86a, the push rod 84a and the push block
- the moving direction of 83a is consistent with the telescopic direction of the intermediate telescopic rod 30.
- the action of the push block 83a can drive the lock pin 81a to overcome the elastic force of the first spring 82a to exit the lock hole 311a to unlock the first telescopic section 31 and the second telescopic section 32 , So that the first telescopic section 31 and the second telescopic section 32 can move relatively.
- the push block 83a has an inclined surface 831, and the lock pin 81a is provided with a roller shaft 811 that abuts against the inclined surface 831; the movement of the push block 83a can make the roller shaft 811 slide along the inclined surface 831, so that the lock pin 81a connects the first telescopic section 31 and The second telescopic section 32 is locked or unlocked.
- the lock hole 311a is provided at the end of the first telescopic section 31 close to the socket.
- the lock assembly locks the lifting guardrail 100 in the maximum open state (open to the limit). Location).
- the lifting guardrail 100 is retracted to the minimum state (retracted to the limit position) since the gravity of the upper guardrail 10 can keep the lifting guardrail 100 in the minimum retracted state, the first telescopic section 31 may not need a lock assembly. It is locked with the second telescopic section 32.
- another locking hole 311a can be provided at the end of the first telescopic section 31 away from the socket, and the locking pin 81a is inserted into the locking hole 311a At this time, the lock assembly can lock the first telescopic section 31 and the second telescopic section 32 to keep the lifting guardrail 100 in the stowed state.
- a plurality of lock holes 311a are arranged at intervals along the length direction of the first telescopic section 31, and different lock holes 311a correspond to different telescopic lengths of the middle telescopic member, so that the degree of opening corresponding to the lifting guardrail 100 is different, the upper guard The rod 10 can be located at different height positions to adapt to different application scenarios.
- the present application also provides a nursing bed, which includes the lifting guardrail 100 provided in the embodiment of the first aspect.
- the upper guardrail 10 and the middle telescopic rod 30 of the lifting guardrail 100 of the nursing bed of the present application can realize linkage, so as to realize the stowing or opening of the lifting guardrail 100.
- the middle telescopic pole 30 is vertically located between the upper guardrail 10 and the lower guardrail 20. When the lifting guardrail 100 is opened, the middle telescopic pole 30 can be used as the middle railing of the lifting guardrail 100 to avoid the upper guardrail 10 and the lower guardrail.
- the distance between 20 is too large to play a protective role.
- the lifting guardrail 100 has a simple structure, convenient operation and good protection effect.
- the lifting guardrail 100 includes an upper guard bar 10, a lower guard bar 20, and a middle telescopic rod 30.
- the middle telescopic rod 30 is located between the upper guard bar 10 and the lower guard bar 20.
- the upper guard rod 10, the lower guard rod 20 and the middle telescopic rod 30 all extend in the left-right direction, and the upper guard rod 10, the lower guard rod 20 and the middle telescopic rod 30 are all parallel to each other.
- the lower guard bar 20 is fixed on a medical bed, and both the upper guard bar 10 and the middle telescopic bar 30 can perform lifting movements relative to the lower guard bar 20 in the up-and-down direction.
- the upper guard bar 10, the lower guard bar 20, and the middle telescopic bar 30 may also have other structural shapes.
- the above is only an example for illustration. Therefore, the present application discusses the upper guard bar 10, the lower guard bar 20, and the The structural shape of the intermediate telescopic rod 30 is not limited.
- the lifting guardrail 100 further includes an upper lifting assembly, a lower lifting assembly, and a synchronization assembly 3b.
- the upper lifting assembly is provided between the upper guard bar 10 and the middle telescopic rod 30, so that the upper guard bar 10 and the middle telescopic rod 30 are close to or far away from each other
- the lower lifting assembly is arranged between the lower guard rod 20 and the middle telescopic rod 30, so that the lower guard rod 20 and the middle telescopic rod 30 are close to or away from each other
- the synchronization assembly 3b is arranged on the upper lifting assembly and the lower lifting assembly. Between the components, so that the upper lifting component and the lower lifting component perform synchronous lifting actions.
- an upper lifting assembly is provided between the upper guard rod 10 and the middle telescopic rod 30, and a lower lifting assembly is provided between the lower guard rod 20 and the middle telescopic rod 30.
- the upper lifting assembly drives the upper guard rod 10 to lift
- the synchronization assembly 3b is provided between the upper and lower lifting components, so that the upper and lower lifting components can perform synchronous lifting actions, so that the upper guard rod 10 and the middle telescopic rod 30 can be synchronized. Lift.
- the upper guard rod 10 and the middle telescopic rod 30 can also be synchronized.
- the ground is raised and lowered.
- the upper guard rod 10 and the middle telescopic rod 30 have an open position and a closed position during the lifting motion in the up and down direction. In the closed position, the upper guard rod 10 and the middle telescopic rod 30 can both be with the lower guard.
- the rod 20 is attached to each other.
- the attachment here may mean that at least one of the upper guard rod 10, the middle telescopic rod 30, and the lower guard rod 20 has a receiving groove, so that the upper guard rod 10, the middle telescopic rod 30, and the lower guard rod 20 It can be stacked and stored.
- the lower guard rod 20 has a storage groove
- the upper guard rod 10 and the middle telescopic rod 30 can be stored in the storage groove of the lower guard rod 20, so that the upper guard rod 10 and the middle telescopic rod 30 can be "invisible” "It can reduce the psychological suggestion of the patient in the hospital bed to a certain extent, and help the patient's physical recovery.
- the lamination can also be stacked sequentially in the up and down direction, and it can also achieve the "invisibility" of the upper guard rod 10 and the middle telescopic rod 30 to a certain extent.
- an upper lifting assembly is provided between the upper guard bar 10 and the middle telescopic rod 30, and a lower lifting assembly is provided between the lower guard bar 20 and the middle telescopic rod 30.
- the synchronization assembly 3b provided between the upper lifting assembly and the lower lifting assembly can make the upper lifting assembly and the lower lifting assembly perform synchronous lifting actions, so that the upper guard bar 10 and the middle telescopic rod 30 can be raised and lowered synchronously, the structure is simple, and the operation is convenient, and it can also avoid the unprotection caused by the excessive distance between the upper guard rod 10 and the lower guard rod 20.
- the upper lifting assembly includes an upper lifting rod 20b. 30 is connected, the lower lifting assembly includes a lower lifting rod 21b, both ends of the lower lifting rod 21b are rotatably connected with the lower guard rod 20 and the middle telescopic rod 30, the synchronization assembly 3b includes a first mating gear 31b and a second meshing gear With the matching gear 32b, the first matching gear 31b is provided at an end of the upper lifting rod 20b near the middle telescopic rod 30, and the second matching gear 32b is provided at the end of the lower lifting rod 21b near the middle telescopic rod 30.
- the two ends of the upper lifting rod 20b can respectively rotate relative to the upper guard rod 10 and the middle telescopic rod 30, and the upper lifting rod 20b can drive the first The cooperating gear 31b rotates.
- the first cooperating gear 31b rotates
- the second cooperating gear 32b is driven to rotate, so that the lower lifting rod 21b can follow the second cooperating gear 32b to rotate, so that the middle telescopic rod 30 and the upper guard rod 10 are raised and lowered synchronously. action.
- the rotation center of the first matching gear 31b coincides with the rotation center of the upper lifting rod 20b relative to the middle telescopic rod 30, and the rotation center of the second matching gear 32b and the lower lifting rod 21b are relative to the middle telescopic rod 30.
- the rotation centers of rotation coincide. Due to the meshing of the first matching gear 31b and the second matching gear 32b, the rotation direction of the upper lifting rod 20b is opposite to the rotation direction of the lower lifting rod 21b.
- a driven gear can also be provided between the first matching gear 31b and the second matching gear 32b according to production requirements or use requirements, so that the rotation direction of the upper lifting rod 20b is the same as the rotation of the lower lifting rod 21b. The direction is the same, there is no restriction here.
- the middle telescopic rod 30 includes a relatively slidable second telescopic section 32 and a first telescopic section 31, and the upper lifting rod 20b includes a second upper
- the two ends of the second upper link 25 are respectively rotatably connected with the left end of the upper guard rod 10 and the left end of the middle telescopic rod 30, and the second lower link 22 Both ends of the lower guard rod 20 are rotatably connected with the left end of the middle telescopic rod 30, respectively.
- the second upper link 25 A first matching gear 31b is provided on the upper part, and a second matching gear 32b is provided on the first lower link 21.
- the second upper link 25 is rotated so that the left end of the upper guard rod 10 performs a lifting action.
- the second lower link 22 can also rotate synchronously, so that the left end of the middle telescopic rod 30 performs a lifting action.
- the two ends of the first upper link 24 are respectively rotatably connected with the right end of the upper guard rod 10 and the right end of the middle telescopic rod 30, and the two ends of the first lower link 21 are respectively rotatably connected with the lower guard rod.
- the right end of 20 and the right end of the middle telescopic rod 30 are rotatably connected.
- a first matching gear 31b is provided on the first upper link 24.
- a second matching gear 32b is provided on the lower link 21, whereby the first upper link 24 is rotated so that during the lifting motion of the right end of the upper guard rod 10, the first lower link 21 can also Synchronous rotation, so that the right end of the middle telescopic rod 30 performs a lifting action.
- the user can perform lifting actions on both ends of the upper guard rod 10 and the middle telescopic rod 30 respectively according to usage requirements.
- the second telescopic section 32 and the first telescopic section 31 may be respectively formed as hollow rods.
- the examples in FIGS. 7-13 of the present application are square rods, but they are not considered as reference to the present application. limits.
- the first telescopic section 31 is sleeved on the second telescopic section 32, so that the second telescopic section 32 can be folded in the first telescopic section 31.
- a first slider is provided at the left end of the first telescopic section 31, the outer side wall of the second telescopic section 32 can be matched with the first slider, and a second slider 62b is provided at the right end of the second telescopic section 32 ,
- the second sliding block 62b can be matched with the inner side wall of the first telescopic section 31, thus, through the first sliding block and the second sliding block 62b, the second telescopic section 32 and the first telescopic section 31 can be made better. Relatively sliding, so that the middle telescopic rod 30 can perform a telescopic action better.
- the first sliding block and the second sliding block 62b can be made of self-lubricating materials such as POM, nylon, brass, etc., and the sliding effect is good.
- the second telescopic section 32 and the first telescopic section 31 can also slide relative to each other through the cooperation of the sliding rail slider, which is not limited here.
- the telescopic action of the middle telescopic rod 30 can make the second upper link 25 and the second lower link 22 at the left end of the middle telescopic rod 30 relatively rotate relatively, so that the first upper link at the right end of the middle telescopic rod 30 24 and the first lower link 21 rotate relatively well.
- a first matching gear 31b may be formed at the end of the second upper link 25, and the second lower link 22 A second mating gear 32b is formed at the end of the.
- a first mating gear 31b can be formed at the end of the first upper link 24, and a second mating gear 32b is formed at the end of the first lower link 21.
- the side of the first mating gear 31b facing the second mating gear 32b has a part of meshing teeth
- the side of the second mating gear 32b facing the first mating gear 31b has meshing mating therewith.
- the teeth of course, the layout of the meshing teeth of the first matching gear 31b and the second matching gear 32b can be set according to actual requirements, and there is no limitation here.
- the lifting guardrail 100 further includes a driving assembly (not shown in the figure).
- the driving assembly is provided on the intermediate telescopic rod 30, and the driving assembly is adapted to drive the second telescopic section 32 and the first telescopic section 32.
- the telescopic sections 31 move in directions away from each other or close to each other. Therefore, when the upper guard rod 10 and the middle telescopic rod 30 are required to move from the folded position to the open position, the drive assembly can drive the second telescopic section 32 and the first telescopic section 31 to move away from each other.
- the middle telescopic section The extension of the telescopic rod 30 can drive the second upper link 25 and the second lower link 22 at the left end of the middle telescopic rod 30 to rotate relatively well, and the first upper link 24 and the first lower link 24 at the right end of the middle telescopic rod 30
- the connecting rod 21 rotates relatively well, so that the upper guard rod 10 and the middle telescopic rod 30 can move to the open position.
- the upper guard rod 10 and the middle telescopic rod 30 need to move from the open position to the closed position, only It is only necessary to make the intermediate telescopic rod 30 perform a shortening action through the drive assembly, which will not be repeated here.
- the drive assembly by controlling the extension and contraction actions of the intermediate telescopic rod 30 by the drive assembly, it is also possible to better control the intermediate telescopic rod 30 to stop at any extended position, and then keep it in the changed position, thereby enabling the upper guard The rod 10 and the intermediate telescopic rod 30 stop at any height position, so as to meet the different height requirements of the lifting guardrail 100.
- a positioning assembly can also be provided to position the extension length of the intermediate telescopic rod 30 in real time, which is not limited here.
- the upper guard rail 10 and the middle telescopic rod 30 both have an open position and a closed position in the lifting direction.
- the lifting guardrail 100 further includes a locking assembly 4b.
- the locking assembly 4b is suitable for locking the upper lifting assembly and/or the lower lifting assembly, so that the upper guard rod 10 and the middle telescopic rod 30 are kept in the open position or the closed position. That is to say, the upper guard bar 10 and the middle telescopic rod 30 can also have an open position and a closed position, as shown in Figs.
- the middle telescopic rod 30 is located on the rear side of the upper guard bar 10 and the lower guard bar 20, and in the up and down direction, is located at the upper guard bar 10 and the lower guard bar 20
- the locking assembly 4b can lock the upper lifting assembly, the lower lifting assembly, and the upper lifting assembly and The lower lifting assembly makes the upper guard rod 10 and the middle telescopic rod 30 both remain in the open position.
- the locking assembly 4b includes a rigid hook 41b provided at one end of the upper lifting assembly facing the upper guard bar 10, and an elastic hook 42b provided on the upper guard bar 10, the openings of the rigid hook 41b and the elastic hook 42b The direction is opposite, and when the upper guard bar 10 moves from the folded position to the open position, the rigid hook 41b is adapted to make the elastic hook 42b elastically deform, and the elastic hook 42b is elastically deformed and then cooperates with the rigid hook 41b .
- a rigid hook 41b is formed on the upper end of the second upper link 25.
- the rigid hook 41b can surround the second upper link. 2.
- the rotation center of the upper link 25 rotates.
- the rigid hook 41b can abut the lower end of the elastic hook 42b.
- the rigid hook 41b continues to rotate to make the elastic hook 42b undergoes elastic deformation.
- the rigid hook 41b can be disengaged from the elastic hook 42b.
- the rigid hook 41b is opposite to the opening of the elastic hook 42b.
- the rotation direction of the rigid hook 41b can be changed, that is, reverse rotation, so that the rigid hook 41b and the elastic hook 42b can be clamped, so that the upper guard bar 10 and the middle telescope
- the lever 30 remains in the open position.
- a rigid hook 41b is also formed at the upper end of the first upper link 24, and an elastic hook 42b is formed at the relative position of the upper guard bar 10, and the action process is the same as the rigid hook at the upper end of the second upper link 25.
- the coordination process of 41b is completely the same, so I won't repeat it here.
- the locking assembly 4b further includes an unlocking member 43b, the unlocking member 43b is provided on the upper guard bar 10, the unlocking member 43b is adapted to make the elastic hook 42b elastically deform, so that the elastic hook 42b and the rigid hook 41b are separated Cooperate. Therefore, when the upper guard rod 10 and the middle telescopic rod 30 need to be moved from the open position to the closed position, the elastic hook 42b can be driven by the unlocking member 43b, so that the elastic hook 42b and the rigid hook 41b are out of cooperation. At this time, the upper guard rod 10 and the middle telescopic rod 30 can be lowered by their own gravity, or can be driven by a driving assembly, which is not limited here.
- a buffer 5b can be provided between the upper lifting assembly and the upper guard rod 10.
- the upper lifting assembly and the middle telescopic rod 30 can also be provided. At least one of the space between the lower lifting assembly and the lower guard rod 20, and between the lower lifting assembly and the middle telescopic rod 30 can be specifically set according to actual needs, which is not limited here. In the example shown in FIGS.
- the buffer member 5b can slow down the rotation speed of the second upper link 25, the first upper link 24, the second lower link 22 and the first lower link 21, Therefore, the lifting speed of the upper guard rod 10 and the middle telescopic rod 30 is slowed down, and the reliability is high and the safety is good.
- the buffer member 5b may be an anti-collision sleeve 51b.
- an anti-collision sleeve 51b is provided on the lower guard rod 20.
- the second lower link 22 is The lower end of the lower connecting rod 22 can abut against the anti-collision sleeve 51b, and then the anti-collision sleeve 51b can slow down the rotation speed of the second lower connecting rod 22.
- the anti-collision sleeve 51b can also contact the second lower connecting rod 22. The angle of rotation is limited.
- the lower guard rod 20 is also provided with another anti-collision sleeve 51b that cooperates with the first lower link 21.
- the anti-collision sleeve 51b slows down the first lower link.
- the rotation speed of the link 21 may also limit the rotation angle of the second lower link 22.
- the buffer member 5b may also be a damper, a torsion spring, etc., wherein the damper or torsion spring may be arranged on the rotation axis of the second lower link 22 and the lower guard rod 20, or may be arranged on the rotation axis of the second lower link 22 and the lower guard rod 20
- the rotation axis of the fourth crossbar and the lower guard bar 20 can also be arranged on the rotation axis of the second upper link 25 and the upper guard bar 10.
- damping can be provided on all the rotation axes of the lifting guardrail 100 This application is not limited to the device or torsion spring.
- the present application also proposes a nursing bed with the lifting guardrail 100 of the embodiment of the second aspect described above.
- the structure is simple and the operation is convenient, and it can also avoid the excessive distance between the upper guard bar 10 and the lower guard bar 20. Cannot protect.
- the lifting guardrail 100 can convert the variable speed rotation of the second link into the variable speed linear motion at the end of the motion, and the cushioning effect is relatively good.
- a lifting guardrail 100 includes: an upper guard rod 10, a lower guard rod 20, a middle telescopic rod 30, a link mechanism 40c, and a buffer mechanism 50c.
- the middle telescopic rod 30 is provided between the upper guard rod 10 and the lower guard rod 20.
- the two ends of the middle telescopic rod 30 are provided with a link mechanism 40 c, and the link mechanism 40 c includes a first link 410 and a second link 420.
- One end of the first connecting rod 410 is rotatably connected to the middle telescopic rod 30 and the other end is rotatably connected to the upper guard rod 10.
- the middle telescopic rod 30, the upper guard rod 10, and the first connecting rods 410 on the left and right sides together form a four-bar linkage structure.
- One end of the second connecting rod 420 is rotatably connected to the middle telescopic rod 30 and the other end is rotatably connected to the lower guard rod 20.
- the middle telescopic rod 30, the lower guard rod 20, and the second connecting rods 420 on the left and right sides together form another four-bar linkage structure.
- a buffer mechanism 50c is provided between the second connecting rod 420 and the lower guard rod 20, that is, a buffer mechanism 50c is provided between the second connecting rod 420 on the left and right sides and the lower guard rod 20 to ensure a balanced buffer effect on both sides.
- the buffer mechanism 50c includes a linkage member 510 and a variable resistance member 520.
- the linkage member 510 has a moving end (not shown in the figure) connected to the variable resistance member 520.
- One end of the linkage member 510 is connected to the second link 420 to convert the variable speed rotation of the second link 420 into a variable speed linear motion at the end of the motion. In this way, the component force of the second link 420 in the vertical direction can be offset, thereby reducing the rotational force of the second link 420 and reducing the load of the buffer mechanism 50c.
- the variable resistance member 520 is provided on the lower guard rod 20. The variable resistance member 520 is configured to receive the greater the speed, the greater the resistance.
- variable resistance member 520 When the upper guard rod 10 is lowered, rotating the first connecting rod 410 will give the second connecting rod 420 an edge.
- the gradually increasing force in the rod direction drives the variable resistance member 520 to accelerate compression. Since the resistance of the variable resistance member 520 is proportional to the compression speed, the greater the compression speed, the greater the resistance. Therefore, when the variable resistance member 520 acts as a buffer
- the lifting guardrail 100 can be slowly lowered during the entire descending process, and the buffering effect is better.
- variable speed rotation of the second link 420 can be converted into the variable speed linear motion at the end of the motion by setting the buffer mechanism 50c.
- the lifting guardrail 100 maintains a slower lowering effect, and the cushioning effect is relatively good, which can effectively avoid the situation of pinching fingers, and because the friction cushioning method is not adopted, there will be no friction loss of parts, and the overall service life longer.
- variable resistance member 520 is a damper
- the linkage member 510 is a connecting rod, one end of the connecting rod is rotatably connected to the second link 420, and the other end of the connecting rod is configured as a moving end, Rotate the connection damper.
- the rotational force of the second connecting rod 420 turns the entire connecting rod to rotate, and the final output is the variable-speed linear motion at the end of the motion, which is then buffered by the damper.
- This buffer mechanism 50c has a simple structure and is easy to install.
- the damper is any one of a hydraulic damper, a gas damper, and an electromagnetic damper.
- variable resistance member 520 may also be other variable resistance devices or components with variable resistance functions.
- the variable resistance member 520 may be a torsion spring. One end of the torsion spring is fixed on the lower guard rod 20, and the other end is connected to The rods are connected by rotation, which can also achieve a better cushioning effect.
- the linkage 510 may also be other linkage components.
- the linkage 510 includes a gear (not shown in the figure) and a rack (not shown in the figure), and the gear is arranged on the second connecting rod 420 and the lower guard rod.
- the rack meshes with gears and slides horizontally on the lower guard bar 20. The end of motion is formed on the rack.
- This method can also convert the variable speed rotation of the second link 420 into variable linear motion.
- the linkage 510 includes a worm wheel (not shown in the figure) and a worm (not shown in the figure).
- the worm wheel is arranged on the shaft connecting the second connecting rod 420 and the lower guard rod 20, and the worm is arranged on the lower guard rod 20 and can be Moving in the horizontal direction, the worm gear meshes with the worm, which can also convert the variable speed rotation of the second connecting rod 420 into a variable speed linear motion.
- the worm wheel and the worm do not have a self-locking function.
- the lifting guardrail 100 further includes: a rolling body 60c and a support 70c.
- the rolling body 60c is provided on the moving end of the connecting rod.
- the support 70c is provided on the lower guard rod 20, and the rolling body 60c stops Abut on the support 70c.
- the rolling element 60c is a rolling bearing or a roller
- the support 70c is a horizontal support plate, which has a simple structure and is convenient to install.
- the rolling element 60c can also be other rolling elements, which will not be repeated here.
- the damper is partially abutted on the support 70c, and a fixing seat 202 is provided on the lower guard rod 20.
- the fixing seat 202 is connected to the damper, that is, the support 70c and the fixing Under the joint action of the seat 202, the installation of the damper is more reliable.
- the left end of the damper is fixed on the fixing seat 202
- the right end of the damper is fixed on the support 70c
- the output rod of the damper is located at the right end and rotates with the connecting rod. Connected.
- the output rod of the damper is provided with a connecting block 5201, the output rod can be rotatably connected to the connecting rod through the connecting block 5201, and the rolling body 60c can be provided on the connecting block 5201.
- the upper guard rod 10 has a first accommodating space (not shown in the figure), and the first connecting rod 410 is provided in the first accommodating space. It can be understood that the first connecting rod 410 and The rotating end connected to the upper guard bar 10 is arranged in the first accommodating space, so that the first connecting rod 410 is partially hidden in the upper guard bar 10, and the appearance of the lifting guardrail 100 is not affected.
- the lower guard rod 20 has a second accommodating space 201, and the second connecting rod 420 is arranged in the second accommodating space 201. Similarly, the rotating end of the second connecting rod 420 and the lower guard rod 20 is arranged in the second accommodating space 201 Therefore, the second connecting rod 420 is partially hidden in the lower guardrail 20, and the appearance of the lifting guardrail 100 is not affected.
- the buffer mechanism 50c is provided in the second receiving space 201, and the buffer mechanism 50c is provided on the side of the second link 420 away from the end of the lower guard rod 20, In this way, the space of the lower guardrail 20 is fully utilized, which has the advantages of small size and compact layout, and can also avoid affecting the appearance of the lifting guardrail 100.
- the second accommodating space 201 is configured such that when the upper guard bar 10 is lowered to fit the lower guard bar 20, the middle telescopic rod 30 and the link mechanism 40c can be accommodated in the second accommodating space 201 In this way, when the lifting guardrail 100 is stowed, it has a beautiful appearance and occupies a small space.
- the upper guard bar 10 and the lower guard bar 20 have the same structure.
- the lower guard bar 20 includes a first connecting plate 210 and a second connecting plate 220 connected to the first connecting plate 210.
- a second receiving space 201 is defined between the connecting plate 220 and the first connecting plate 210.
- the lower guard rod 20 further includes a sheath 230.
- the two ends of the lower guard rod 20 in the length direction are provided with sheaths 230.
- the ends of the first connecting plate 210 and the second connecting plate 210 The end of the plate 220 is set in the sheath 230.
- the sheath 230 can play a protective role to prevent the left and right ends of the lower guard rod 20 from scratching human hands.
- the sheath 230 can be made of rubber material, which has a better Protective effects.
- the sheath 230 may be provided with rounded corners (not shown in the figure). It is worth noting that the middle telescopic rod 30 is composed of pipe fittings whose two ends can be telescopic. For details, please refer to the middle telescopic rod in the prior art, which will not be repeated here.
- a lifting guardrail 100 includes: an upper guard bar 10, a lower guard bar 20, a middle telescopic bar 30, a link mechanism 40c, and a buffer mechanism 50c.
- the middle telescopic rod 30 is provided between the upper guard rod 10 and the lower guard rod 20.
- the two ends of the middle telescopic rod 30 are provided with a link mechanism 40c.
- the link mechanism 40c includes a first link 410 and a second link 420.
- One end of the first link 410 is rotatably connected to the middle telescopic rod 30 and the other end is rotatably connected to
- For the guard rod 10 one end of the second connecting rod 420 is rotatably connected to the middle telescopic rod 30 and the other end is rotatably connected to the lower guard rod 20.
- a buffer mechanism 50 c is provided between the second connecting rod 420 and the lower guard rod 20, and the buffer mechanism 50 c includes a linkage member 510 and a variable resistance member 520.
- the linkage member 510 has a moving end connected to the variable resistance member 520.
- One end of the linkage member 510 is connected to the second link 420 to convert the variable speed rotation of the second link 420 into a variable speed linear motion at the end of the motion.
- the variable resistance member 520 is arranged below On the guard bar 20, the variable resistance member 520 is configured such that the greater the speed it receives, the greater the resistance.
- the variable resistance member 520 is a hydraulic damper; the linkage member 510 is a connecting rod, one end of the connecting rod is rotatably connected to the second connecting rod 420, the other end of the connecting rod is configured as a moving end, and the moving end is rotatably connected to the hydraulic damper.
- the lifting guardrail 100 further includes a rolling body 60c and a supporting member 70c.
- the rolling body 60c is provided on the moving end of the connecting rod, the supporting member 70c is provided on the lower guard bar 20, and the rolling body 60c is abutted on the supporting member 70c.
- the rolling element 60c is a rolling bearing, and the support 70c is a horizontal support plate.
- the hydraulic damper partly abuts on the support 70c, a fixing seat 202 is provided on the lower guard rod 20, and the fixing seat 202 is connected to the hydraulic damper.
- the output rod of the damper is provided with a connecting block 5201, the output rod can be rotatably connected with the connecting rod through the connecting block 5201, and the rolling body 60c can be provided on the connecting block 5201.
- the upper guard bar 10 has a first accommodating space, and the first connecting rod 410 is disposed in the first accommodating space.
- the lower guard rod 20 has a second accommodating space 201, and the second connecting rod 420 is provided in the second accommodating space 201.
- the buffer mechanism 50c is provided in the second accommodating space 201, and the buffer mechanism 50c is provided on the side of the second link 420 away from the end of the lower guard rod 20.
- the second accommodating space 201 is configured such that when the upper guard rod 10 is lowered to fit the lower guard rod 20, the middle telescopic rod 30 and the link mechanism 40 c can be received in the second accommodating space 201.
- the upper guard bar 10 and the lower guard bar 20 have the same structure.
- the lower guard bar 20 includes a first connecting plate 210 and a second connecting plate 220 connected to the first connecting plate 210.
- a second accommodating space 201 is defined.
- the lower guard rod 20 further includes a sheath 230, and both ends of the length direction of the lower guard rod 20 are provided with a sheath 230, and the end of the first connecting plate 210 and the end of the second connecting plate 220 are arranged in the sheath 230 .
- a nursing bed according to an embodiment of the present application includes the lifting guardrail 100 of the foregoing third aspect embodiment.
- the lifting guardrail 100 can be lifted up and down, wherein the buffer mechanism 50c of the lifting guardrail 100 can convert the variable speed rotation of the second link 420 into a variable speed linear motion at the end of the motion ,
- the buffer mechanism 50c of the lifting guardrail 100 can convert the variable speed rotation of the second link 420 into a variable speed linear motion at the end of the motion .
- the lifting guardrail 100 can maintain a slower descent effect, and the cushioning effect is relatively good, which can effectively avoid the situation of pinching the fingers, and because the friction cushioning method is not used , So there is no friction loss of parts, and the overall service life is relatively long.
- the following describes the lifting guardrail 100 of the embodiment of the fourth aspect of the present application according to FIGS. 17-28.
- the lifting guardrail 100 remains parallel during the lifting process, which has good stability and high safety.
- the lift guardrail 100 includes: at least two main poles 1d and at least three Two connecting rods 2d.
- the main rod 1d includes a lower guard rod 20 and a middle telescopic rod 30.
- the middle telescopic rod 30 is located on one side of the lower guard rod 20.
- the middle telescopic rod 30 is a telescopic rod and includes at least two telescopic sections. Each telescopic section includes a first telescopic section 31 and a second telescopic section 32.
- the lifting guardrail 100 includes at least two main poles 1d. As shown in FIG. 17, only two main poles 1d are provided, that is, the lower guardrail 20 and the middle telescopic pole 30 are included, so as to realize the lifting Lifting of the guardrail.
- the lifting guardrail 100 includes at least two main poles 1d, which may be more than two main poles 1d, as shown in FIGS. 18-21, 23, 27 and 28.
- the connecting rod 2d includes: a first lower connecting rod 21, a second lower connecting rod 22, and a third connecting rod 23.
- One end of the first lower connecting rod 21 is rotatably connected to the lower guard rod 20, and the other end of the first lower connecting rod 21 It is rotatably connected to the first telescopic section 31, one end of the second lower link 22 is rotatably connected to the lower guard rod 20, and the other end of the second lower link 22 is rotatably connected to the second telescopic section 32.
- the lifting guardrail 100 includes a middle telescopic rod 30, and the middle telescopic rod 30 forms a telescopic rod through at least two telescopic sections, that is, the middle telescopic rod 30 can be extended and adjusted in length.
- the middle telescopic rod 30 and the lower guard rod 20 Between the middle telescopic rod 30 and the lower guard rod 20, the first lower link 21 and the second lower link 22 are connected, and the two ends of the first lower link 21 are respectively connected to the first telescopic section 31 and the lower.
- the two ends of the second lower connecting rod 22 are respectively connected between the second telescopic section 1 and the two ends of the lower guard rod 20. Therefore, a mechanism can be formed between the first lower link 21, the lower guard rod 20, the second lower link 22 and the middle telescopic rod 30 to allow the middle telescopic rod 30 to be raised and lowered relative to the lower guard rod 20.
- the telescopic section adopts at least a two-section structure, that is, at least a first telescopic section 31 and a second telescopic section 32 are included.
- first telescopic section 31 and a second telescopic section 32 are included.
- one end of the first lower link 21 can be connected to one end of the first telescopic section 31, and the other end of the first lower link 21 is connected to the lower guard rod 20.
- the direction of the end of the first telescopic section 31 connected to the first lower connecting rod 21 is the same as that of the end of the lower guard rod 20 connected to the first telescopic section 31.
- one end of the second lower link 22 may be connected to one end of the second telescopic section 32, and the other end of the second lower link 22 is connected to the other end of the lower guard rod 20, and The end of the second telescopic section 32 connected to the second lower connecting rod 22 is in the same direction as the end of the lower guard rod 20 connected to the second telescopic section 32.
- one end of the third link 23 is rotatably connected to the lower guard rod 20, and the other end of the third link 23 is rotatably connected to the first telescopic section.
- both ends of the third link 23 are pivotally connected to the first telescopic section 31 and the lower guard rod 20, so that the third link 23, the first telescopic section 31, the first lower link 21 and the lower guard rod
- a rotatable parallelogram structure is formed between 20, so that when the height position of the middle telescopic rod 30 is changed so that it can be raised and lowered relative to the lower guard rod 20, the parallelogram structure can ensure the middle telescopic rod 30 During the lifting process, it is always kept relatively parallel to the lower guard bar 20, and no deviation or twisting occurs. Furthermore, the lifting guardrail 100 with the same can ensure stable support for the user during the lifting process, and the safety is higher.
- the lower guardrail 20 and the middle telescopic pole 30 are provided, and at least three connecting rods 2d pivotally connected between the lower guardrail 20 and the middle telescopic pole 30 are provided to realize the lower guardrail.
- the lifting between the rod 20 and the intermediate telescopic rod 30 can facilitate the height adjustment to suit the patient.
- a third connecting rod 23 and a first lower connecting rod 21 are pivotally connected to the first telescopic section 31, and the third connecting rod 23 and the first lower connecting rod 21
- the other end is also pivotally connected to the lower guard rod 20, thereby forming a parallelogram structure, which can ensure that the lower guard rod 20 is always parallel to the lower guard rod 20 when it is raised and lowered relative to the lower guard rod 20.
- the intermediate telescopic rod 30 is prevented from torsion or deviation during the lifting process, and the safety performance of the lifting guardrail 100 is improved.
- the main pole 1d also includes an upper guard bar 10, the upper guard bar 10 and the lower guard bar 20 are located on both sides of the middle telescopic rod 30, that is, the middle telescopic rod 30 is located at the lower guard rod 20 And the middle position of the upper guard bar 10.
- the connecting rod 2d includes a first upper connecting rod 24 and a second upper connecting rod 25.
- One end of the first upper connecting rod 24 is rotatably connected to the upper guard rod 10, and the other end of the first upper connecting rod 24 is rotatably connected to the telescopic section.
- One end of the second upper link 25 is rotatably connected to the upper guard rod 10, the other end of the second upper link 25 is rotatably connected to the telescopic section, and the second upper link 25 is connected to the first upper link 24.
- the expansion section is different.
- the middle telescopic rod 30 includes at least two telescopic sections
- the connecting rod 2d includes a second upper connecting rod 25 and a first upper connecting rod 24. Both ends of the first upper connecting rod 24 Respectively rotatably connected to a telescopic section of the upper guard rod 10 and the middle telescopic rod 30, the telescopic section may be the first telescopic section 31, the second telescopic section 32, or other telescopic sections on the middle telescopic rod 30 .
- both ends of the first upper link 24 are respectively rotatably connected to the other telescopic section of the upper guard rod 10 and the middle telescopic rod 30, that is, the telescopic section connected by the first upper link 24 and the second upper link 25.
- the sections are different.
- the first upper link 24 can be connected to the first telescopic section 31, and the second upper link 25 can be connected to the second telescopic section 32. If the first upper link 24 can also be connected to the second telescopic section 32, the second lower link 22 can be connected to the first telescopic section 31.
- the upper guard rod 10, the middle telescopic rod 30, the second upper link 25 and the first upper link 24 are pivotally connected in turn to form a structure that can be raised and lowered, that is, the upper guard rod 10 can be made relative to the middle Lifting of the telescopic rod 30.
- the lower guard rod 20, the first lower link 21, the middle telescopic rod 30, and the second lower link 22 are pivotally connected in turn to form a structure that can make the middle telescopic rod 30 rise and fall relative to the lower guard rod 20 .
- the middle telescopic rod 30 to be raised and lowered relative to the lower guard rod 20, and the upper guard rod 10 can be raised and lowered relative to the middle telescopic rod 30, the raising and lowering of the raising and lowering guardrail 100 can be realized, and by designing the aforementioned parallelogram
- the structure can effectively raise and lower the lifting guardrail 100 for stability, and improve the safety performance of the lifting guardrail 100 when it is raised and lowered.
- the first upper link 24 is connected to the first telescopic section 31, and a first engagement is connected between the rotating shaft of the first lower link 21 and the rotating shaft of the first upper link 24 Component 10d.
- the first upper link 24 is connected to the first telescopic section 31, and the first lower link 21 and the first upper link 24 are connected to one end of the first telescopic section 31 Through the connection of the first engagement assembly 10d, the first lower link 21 and the first upper link 24 can be rotated at the same time.
- the second upper link 25 is connected to the second telescopic section 1, and a second lower link 22 is connected to the shaft of the second upper link 25. Engagement component 20d.
- the second lower link 22 and the second upper link 25 are connected to the same telescopic section.
- the second lower link 22 and the second upper link 25 is connected to the second telescopic section 32 at the same time, and the end of the second lower link 22 and the second upper link 25 connected to the second telescopic section 32 is connected by the second engagement assembly 20d, thereby realizing the second lower link
- the rod 22 and the second upper link 25 rotate at the same time
- At least one of the lower guard rod 20 and the upper guard rod 10 is provided in a receiving groove 30d that opens toward the middle telescopic rod 30.
- the middle telescopic rod 30 is shortened to the first set length, the middle telescopic rod 30 At least part of the telescopic rod 30 is located in the receiving groove 30d.
- the middle telescopic rod 30 is connected by two telescopic sections, which can achieve expansion and contraction, that is, the length of the middle telescopic rod 30 can be adjusted, and at least one of the lower guard rod 20 and the upper guard rod 10 is provided with a receiving groove 30d, And the accommodating groove 30d opens toward the middle telescopic rod 30, so that after the middle telescopic rod 30 is shortened to a certain length, it can be stored in the accommodating groove 30d, that is, when the middle telescopic rod 30 is shortened to the first set length, it can be stored in the container. In the slot 30d.
- the receiving groove 30d may be provided only on the lower guard bar 20, or only the receiving groove 30d may be provided on the upper guard bar 10, or the receiving groove 30d may be provided on the lower guard bar 20 and the upper guard bar 10 at the same time.
- the first telescopic section 31 and the second telescopic section 32 of the middle telescopic rod 30 can be telescopic, thereby adjusting the length of the middle telescopic rod 30, and the middle telescopic rod 30 can be telescopic, realizing its height relative to the lower guard rod 20
- the lifting also enables the upper guard rod 10 to be raised and lowered relative to the middle telescopic rod 30.
- the intermediate telescopic rod 30 can be shortened and accommodated in the receiving groove 30d to make the height complete.
- the intermediate telescopic rod 30 is completely stored in the receiving groove 30d, and will not be exposed to the outside, and the appearance structure of the lifting guardrail 100 is more complete.
- both the lower guard rod 20 and the upper guard rod 10 are provided with accommodating grooves 30d.
- the middle telescopic rod 30 is shortened to the first set length, a part of the middle telescopic rod 30 is located in one of the accommodating grooves. In the groove 30d, another part of the middle telescopic rod 30 is located in the other receiving groove 30d.
- the first telescopic section 31 and the second telescopic section 32 of the intermediate telescopic rod 30 can be telescopic, so as to adjust the length of the intermediate telescopic rod 30, and the intermediate telescopic rod 30 can be telescopic to achieve
- the upper guard rod 10 can also be raised and lowered relative to the middle telescopic rod 30.
- the intermediate telescopic rod 30 when the height of the intermediate telescopic rod 30 is reduced, that is, when the height of the lifting guardrail 100 is lowered, the intermediate telescopic rod 30 can be shortened and accommodated in the receiving groove 30d, so that the height can be completely reduced.
- the middle telescopic rod 30 is completely stored in the receiving groove 30d, and will not be exposed to the outside, and the appearance structure of the lifting guardrail 100 is more complete.
- both the lower guard rod 20 and the upper guard rod 10 are provided with an accommodating groove 30d facing the opening toward the middle telescopic rod 30, the middle telescopic rod 30 is accommodated inside the accommodating groove 30d, and a part of the middle telescopic rod 30 is accommodated in the lower guard rod.
- the middle telescopic rod 30 is accommodated in the accommodating groove 30d of the upper guard rod 10, thereby realizing that all of the middle telescopic rod 30 is accommodated in the accommodating groove 30d, and thus the lifting guardrail 100 is completely lowered Later, the middle telescopic rod 30 is not exposed to the outside of the lifting guardrail 100, which ensures the overall appearance of the lifting guardrail 100 and also provides protection for the middle telescopic rod 30.
- a torsion spring 40d is provided at the rotating shaft of at least one connecting rod 2d. That is, a torsion spring 40d can be provided at the rotation axis of at least one connecting rod 2d to provide a certain external force for the rotation of the connecting rod 2d.
- the torsion spring 40d can provide a lowering of the connecting rod 2d.
- the connecting rod 2d rotates and returns to work by the opposite external force, so that the lifting barrier 100 can be slowly lowered, thereby preventing the lifting barrier 100 from being suddenly lowered in height to pinch the user's hands, and causing the lifting barrier 100 to slowly descend, which can lower the lifting barrier 100.
- the sound generated by the contact between the main rods 1d gives the user a better experience.
- the telescopic sections of the intermediate telescopic rod 30 are all pipe sections, and a plurality of pipe sections are sequentially sleeved along the length direction of the intermediate telescopic rod 30, and the pipe sections located in the inner layer are connected with guides.
- the block 3d and the guide block 3d are used to slide in the pipe section located on the outer layer.
- the intermediate telescopic rod 30 includes a plurality of telescopic sections, a plurality of internal pipe sections of the telescopic section, that is, a tubular structure, and the plurality of tubular structures are sequentially sleeved, thereby forming the telescopic intermediate rod 30 that can be telescoped.
- a plurality of pipe sections are sleeved and connected, and the pipe section sleeved on the outside can slide the pipe section inside it.
- the outer peripheral surface of the end of the pipe section inside is provided with a slider.
- the block can make the pipe section located inside slide in the pipe section sleeved on the outside.
- the inner wall surface of the outer pipe section may be provided with a corresponding slide groove or slide rail 4d, so that the pipe section that slides inside it can be connected by sliding in a sliding manner in which the slider and the slide groove or slide rail 4d cooperate. , So as to realize the expansion and contraction of the intermediate telescopic rod 30.
- the lifting guardrail 100 is provided with at least one locking structure 5d.
- the locking structure 5d includes a locking portion 51d and an unlocking portion 52d.
- the locking portion 51d is used to extend the telescopic rod 30 in the middle. The locking is performed when the second set length is reached, and the unlocking portion 52d is used to unlock the locking portion 51d when triggered.
- the locking structure 5d can be locked when the middle telescopic rod 30 is extended to the second length, that is, when the lifting guardrail 100 rises, the length of the middle telescopic rod 30 is extended, and the length of the middle telescopic rod 30 is extended to After a certain length, the rising height of the lifting barrier 100 is locked so that the lifting barrier 100 cannot continue to rise or fall, thereby stabilizing the lifting barrier 100 at the current height, and ensuring that the lifting barrier 100 does not suddenly lower the height to put the user in danger.
- the locking structure 5d includes a locking portion 51d and an unlocking portion 52d.
- the locking portion 51d can lock the height of the lifting guardrail 100 to prevent the lifting guardrail 100 from being suddenly lowered when supporting the user when it is raised.
- the security poses hidden dangers.
- the unlocking part 52d can lower the height of the lifting guardrail 100 when it is triggered, thereby realizing the automatic lowering of the lifting guardrail 100, and the status of the unlocking part 52d and the locking part 51d can facilitate the user to confirm when the lifting guardrail 100 is raised. Is the state stable?
- the locking portion 51d satisfies at least one of the following conditions: the locking portion 51d is used for locking between the main rod 1d and the connecting rod 2d, and the locking portion 51d is used for locking adjacent two of the intermediate telescopic rod 30. Between two telescopic rods.
- the locking portion 51d may be provided between the main rod 1d and the connecting rod 2d, so that the lifting guardrail 100 can be raised between the connecting rod 2d and the connecting rod 2d.
- the main rods 1d rotate relative to each other, and after rotating to a certain degree, the rotation angle between the connecting rod 2d and the main rod 1d is locked by the locking portion 51d, so that the lifting guardrail 100 is maintained at the current height.
- the locking portion 51d may be provided between the middle telescopic rod 30 and two adjacent telescopic rods, so that the length of the middle telescopic rod 30 can be adjusted to After the second set length, the telescopic function of the middle telescopic rod 30 is locked, that is, the middle telescopic rod 30 cannot continue to adjust the telescopic length, thereby ensuring that the lifting guardrail 100 is stable at the current height and improving the stability of the lifting guardrail 100.
- the locking portion 51d is used for locking between the main rod 1d and the connecting rod 2d, so that the connecting rod 2d and the main rod 1d can be locked by a relative rotation angle. Therefore, the lifting height of the lifting guardrail 100 is fixed, which cannot ensure the stability of the lifting guardrail 100 in use.
- the locking portion 51d includes: a first hook 511, a second hook 512, and a retaining elastic member 513.
- the first hook 511 is connected to the main rod 1d through a rotating shaft, and the second hook
- the hook 512 is integrally formed on the connecting rod 2d, and the second hook 512 is located on the side of the shaft of the connecting rod 2d facing the first hook 511.
- the second hook 512 is The first hook 511 is separated, and the second hook 512 cooperates with the first hook 511 when the intermediate telescopic rod 30 is extended to the second set length.
- the locking portion 51d is rotatably arranged on the main rod 1d, and the locking portion 51d is provided with a first hook 511, and the connecting rod 2d is rotatably connected to one end of the main rod 1d, and is provided with a second hook 512.
- a hook 511 and a second hook 512 can be hooked.
- the middle telescopic rod 30 can be extended and contracted. During the raising process of the lifting guardrail 100, the middle telescopic rod 30 can be extended to a second set length.
- the intermediate telescopic rod 30 can be shortened to the first set length, and is completely stored in the receiving groove 30d. Therefore, when the intermediate telescopic rod 30 is extended to the second set length, that is, when the height of the lifting guardrail 100 rises, the first hook 511 can be hooked with the second hook 512, thereby stabilizing the lifting guardrail 100 in the current position. Height, to ensure the stability of the support for the user.
- the intermediate telescopic rod 30 is shortened to the first set length, that is, when the height of the lifting guardrail 100 is lowered, the first hook 511 can be disengaged from the second hook 512.
- the holding elastic member 513 is connected between the main rod 1d and the first hook 511, and the holding elastic member 513 is used to drive the first hook 511 to be locked when the intermediate telescopic rod 30 is at the second set length.
- the second hook 512 On the second hook 512.
- the retaining elastic member 513 can make the locking portion 51d rotate relative to the second hook 512, so that when the intermediate telescopic rod 30 is extended to the second set length, The first hook 511 and the second hook 512 are automatically hooked to realize the self-locking after the height of the lifting guardrail 100 is raised, and the stability of the lifting guardrail 100 is maintained.
- the retaining elastic member 513 may also be a torsion spring 40d, and the torsion force of the torsion spring 40d realizes the automatic rotation of the first hook 511, that is, the first hook 511 can automatically rotate to hook with the second hook 512 After the lifting guardrail 100 rises to a certain position, the height of the lifting guardrail 100 is automatically locked.
- the first hooks 511 of the two locking structures 5d are located at both ends of the same main pole 1d, and the unlocking portion 52d of each locking structure 5d is For the puller connected to the first hook 511, both ends of the main rod 1d are respectively provided with end grooves 6d for accommodating the puller.
- both ends of the same main pole 1d are provided with a locking structure 5d, and both ends of the same main pole 1d are provided with end grooves 6d.
- the unlocking portion 52d may be a paddle.
- the undulating paddle causes the locking structure 5d to unlock the connecting rod 2d and the main rod 1d, that is, when the connecting rod 2d and the main rod 1d resume rotation, the paddle can be accommodated in In the end groove 6d, the paddles are prevented from protruding from both ends of the main pole 1d, so that the external structure of the lifting guardrail 100 is incomplete, and the overall external lines are not smooth.
- the locking structure 5d is rotatably arranged on the main rod 1d, and when the intermediate telescopic rod 30 is extended to the second set length, the locking part 51d provides a rotational force through the retaining elastic member 513, so that the first hook 511 is connected to the connecting rod.
- the second hook 512 of the rod 2d is hooked to lock the rotation between the connecting rod 2d and the main rod 1d, which can maintain the lifting height of the lifting guardrail 100 and provide stable support for the user.
- the locking portion 51d can be rotated by turning the paddle of the locking structure 5d, so that the first hook 511 and the second hook 512 can be separated, so that the connecting rod can be disengaged.
- the rotation between 2d and the main pole 1d is restored to reduce the height of the lifting guardrail 100.
- the lifting guardrail 100 realizes automatic descent through its own gravity, thereby realizing the automatic descent of the lifting guardrail 100, and the connecting rod 2d and the rotating shaft of the lifting guardrail 100 are provided with a torsion spring 40d, which can be used when the lifting guardrail 100 is automatically lowered
- the torsion of the torsion spring 40d reduces the automatic descent speed of the lifting guardrail 100, thereby avoiding pinching of the user's hand, and avoiding the collision between the main poles 1d due to the excessively fast descending speed of the lifting guardrail 100 causing noise.
- an anti-collision block 50d is also provided. It is located on the side close to the end of the main pole 1d. Therefore, the rotation of the connecting rod 2d can be limited, and the rotation angle of the connecting rod 2d can be prevented from being too large.
- the first meshing assembly 10d and the second meshing assembly 20d each include two gears 101 that mesh with each other.
- the two gears 101 are respectively connected to a connecting rod 2d, thereby connecting to the same telescopic
- the two connecting rods 2d of the segment can be rotated synchronously through the meshing gears 101.
- the synchronous rotation of the two connecting rods 2d can also be realized, so as to ensure that the lifting guardrail 100 is in During the lifting process, the multiple main rods 1d maintain parallel positions, and no tilt occurs.
- the multiple main rods 1d are in the same plane, that is, the multiple main rods 1d will not be twisted during the lifting process, and the stability is high.
- the present application also proposes a nursing bed with the lifting guardrail 100 of the embodiment of the fourth aspect described above.
- the nursing bed includes the lifting guardrail 100 of the embodiment of the aforementioned fourth aspect.
- the lower connecting rods 21 are pivotally connected to the first telescopic section 31, and the other ends of the third connecting rod 23 and the first lower connecting rod 24 are also pivotally connected to the lower guard rod 20, thereby forming a parallelogram.
- the structure can ensure that when the upper guard bar 10 is lifted relative to the lower guard bar 20, it is always parallel to the lower guard bar 20, thereby preventing the middle telescopic bar 30 from twisting or shifting during the lifting process, and improving the care bed during use. Safety performance.
- connection should be understood in a broad sense, unless otherwise clearly specified and limited.
- it can be a fixed connection or a detachable connection.
- Connected or integrally connected it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
- connection should be understood in a broad sense, unless otherwise clearly specified and limited.
- it can be a fixed connection or a detachable connection.
- Connected or integrally connected it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
- the specific meanings of the above terms in this application can be understood under specific circumstances.
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Abstract
Description
Claims (41)
- 一种升降护栏,其特征在于,包括:上护杆;下护杆;中间伸缩杆,所述中间伸缩杆可升降地设在所述上护杆和所述下护杆之间。
- 根据权利要求1所述的升降护栏,其特征在于,还包括:第一上连杆、第二上连杆、第一下连杆和第二下连杆;所述中间伸缩杆包括可相对滑动的第一伸缩段和第二伸缩段;所述第一上连杆的上端铰接于所述上护杆,所述第一上连杆的下端铰接于所述第一伸缩段;所述第二上连杆的上端铰接于所述上护杆,所述第二上连杆的下端铰接于所述第二伸缩段;所述第一下连杆的上端铰接于所述第一伸缩段,所述第一下连杆的下端铰接于所述下护杆;所述第二下连杆的上端铰接于所述第二伸缩段,所述第二下连杆的下端铰接于所述下护杆。
- 根据权利要求2所述的升降护栏,其特征在于,所述第一上连杆的下端与所述第一下连杆的上端通过第一同步结构传动连接。
- 根据权利要求3所述的升降护栏,其特征在于,所述第一同步结构包括第一齿轮和第二齿轮;所述第一齿轮固定于所述第一上连杆的下端,所述第二齿轮固定于所述第一下连杆的上端,所述第一齿轮与所述第二齿轮啮合。
- 根据权利要求2-4中任一项所述的升降护栏,其特征在于,所述第二上连杆的下端与所述第二下连杆的上端通过第二同步结构传动连接。
- 根据权利要求5所述的升降护栏,其特征在于,所述第二同步结构包括第三齿轮和第四齿轮;所述第三齿轮固定于所述第二上连杆的下端,所述第四齿轮固定于所述第二下连杆的上端,所述第三齿轮与所述第四齿轮啮合。
- 根据权利要求2-6中任一项所述的升降护栏,其特征在于,所述第一下连杆的下端与所述第二下连杆的下端通过第三同步结构传动连接。
- 根据权利要求7所述的升降护栏,其特征在于,所述第三同步结构包括第一同步轮、 第二同步轮和柔性传动件;所述第一同步轮固定于所述第一下连杆下端,所述第二同步轮固定于所述第二下连杆的下端,所述柔性传动件以“8”字型绕法缠绕在所述第一同步轮和所述第二同步轮上。
- 根据权利要求1-8中任一项所述的升降护栏,其特征在于,所述升降护栏具有打开状态和收起状态,在所述打开状态下,所述上护杆与所述下护杆之间的间距大于在所述收起状态下所述上护杆与所述下护杆之间的间距;当所述升降护栏处于打开状态时,所述中间伸缩杆处于伸长状态;当所述升降护栏处于收起状态时,所述中间伸缩杆处于缩短状态。
- 根据权利要求9所述的升降护栏,其特征在于,所述中间伸缩杆还包括锁组件和开锁组件,所述锁组件用于将所述中间伸缩杆锁定于所述伸长状态,所述开锁组件用于解除所述锁组件对所述中间伸缩杆的锁定。
- 根据权利要求10所述的升降护栏,其特征在于,所述第一伸缩段上设置有锁孔,所述锁组件设置在所述第二伸缩段上;所述锁组件包括用于***所述锁孔的锁销,所述开锁组件包括推块和按钮,所述推块用于推动所述锁销移动以使所述锁销退出所述锁孔,所述按钮设置在所述中间伸缩杆的一端,所述按钮用于触发所述推块动作。
- 根据权利要求9-11中任一项所述的升降护栏,其特征在于,所述上护杆上设有第一容纳槽,所述下护杆上设有第二容纳槽;当所述升降护栏处于所述收起状态时,所述上护杆和所述下护杆并拢,所述中间伸缩杆收容在所述第一容纳槽和所述第二容纳槽内,所述第一上连杆和所述第二上连杆均收容在第一容纳槽内,所述第一下连杆和所述第二下连杆收容在所述第二容纳槽内。
- 根据权利要求1所述的升降护栏,其特征在于,还包括:上升降组件、下升降组件和同步组件;所述上升降组件设于所述上护杆和所述中间伸缩杆之间,以使得所述上护杆和所述中间伸缩杆相互靠近或者远离;所述下升降组件设于所述下护杆和所述中间伸缩杆之间,以使得所述下护杆和所述中间伸缩杆相互靠近或者远离;所述同步组件设于所述上升降组件和所述下升降组件之间,以使得所述上升降组件和所述下升降组件进行同步地升降动作。
- 根据权利要求13所述的升降护栏,其特征在于,所述上升降组件包括上升降杆,所述上升降杆的两端分别可转动地与所述上护杆和中间伸缩杆相连;所述下升降组件包括下升降杆,所述下升降杆的两端分别可转动地与所述下护杆和中间伸缩杆相连;所述同步组件包括相互啮合的第一配合齿轮和第二配合齿轮,所述第一配合齿轮设于所述上升降杆靠近所述中间伸缩杆的一端,所述第二配合齿轮设于所述下升降杆靠近所述中间伸缩杆的一端。
- 根据权利要求14所述的升降护栏,其特征在于,所述中间伸缩杆包括可相对滑动的第二伸缩段和第一伸缩段,所述上升降杆包括第二上连杆和第一上连杆,所述下升降杆包括第二下连杆和第一下连杆,所述第二上连杆和所述第二下连杆对应配合在所述第二伸缩段上,所述第一上连杆和所述第一下连杆对应配合在所述第一伸缩段上,所述同步组件设有两个,一个同步组件分别设于所述第二上连杆和所述第二下连杆之间,另一个所述同步组件设于所述第一上连杆和所述第一下连杆之间。
- 根据权利要求15所述的升降护栏,其特征在于,还包括驱动组件,所述驱动组件设于所述中间伸缩杆上,所述驱动组件适于驱动所述第二伸缩段和所述第一伸缩段朝向相互远离或者相互靠近的方向活动。
- 根据权利要求13-16中任一项所述的升降护栏,其特征在于,所述上护杆和所述中间伸缩杆在升降方向上均具有打开位置和收合位置,所述升降护栏还包括锁止组件,所述锁止组件适于锁止上升降组件和/或下升降组件,以使得所述上护杆和所述中间伸缩杆保持在打开位置或者收合位置。
- 根据权利要求17所述的升降护栏,其特征在于,所述锁止组件包括设于所述上升降组件朝向所述上护杆一端的刚性卡钩,和设于所述上护杆上的弹性卡钩,所述刚性卡钩和所述弹性卡钩的开口方向相反,且在所述上护杆从所述收合位置朝向所述打开位置活动的过程中,所述刚性卡钩适于使得所述弹性卡钩发生弹性形变,所述弹性卡钩发生弹性形变后与所述刚性卡钩配合。
- 根据权利要求18所述的升降护栏,其特征在于,所述锁止组件还包括解锁件,所述解锁件设于所述上护杆上,所述解锁件适于使得所述弹性卡钩发生弹性形变,以使得所述弹性卡钩和所述刚性卡钩脱离配合。
- 根据权利要求13-19中任一项所述的升降护栏,其特征在于,还包括:缓冲件,所述缓冲件设于所述上升降组件和上护杆之间、和/或所述上升降组件和中间伸缩杆之间、和/或下升降组件和下护杆之间、和/或下升降组件和中间伸缩杆之间,所述缓冲件适于减缓所述上护杆和中间伸缩杆的升降速度。
- 根据权利要求20所述的升降护栏,其特征在于,所述缓冲件为防撞套管、阻尼器和扭簧中的至少一个。
- 根据权利要求1所述的升降护栏,其特征在于,还包括:连杆机构,所述中间伸缩杆的两端设有所述连杆机构,所述连杆机构包括第一连杆和第二连杆,所述第一连杆的一端转动连接所述中间伸缩杆且另一端转动连接所述上护杆,所述第二连杆的一端转动连接所述中间伸缩杆且另一端转动连接所述下护杆;缓冲机构,所述第二连杆和所述下护杆之间设有所述缓冲机构,所述缓冲机构包括联动件和变阻力件,所述联动件具有连接所述变阻力件的运动末端,所述联动件的一端连接所述第二连杆,以将所述第二连杆的变速转动转化为所述运动末端的变速直线运动,所述变阻力件设在所述下护杆上,所述变阻力件构造成受到的速度越大则阻力越大。
- 根据权利要求22所述的升降护栏,其特征在于,所述变阻力件为阻尼器;所述联动件为连接杆,所述连接杆的一端转动连接所述第二连杆,所述连接杆的另一端构造成所述运动末端,所述运动末端转动连接所述阻尼器。
- 根据权利要求23所述的升降护栏,其特征在于,还包括:滚动体,所述滚动体设在所述连接杆的所述运动末端上;支撑件,所述支撑件设在所述下护杆上,所述滚动体止抵在所述支撑件上。
- 根据权利要求24所述的升降护栏,其特征在于,所述阻尼器部分止抵在所述支撑件上,所述下护杆上设有固定座,所述固定座连接所述阻尼器。
- 根据权利要求22-25中任一项所述的升降护栏,其特征在于,所述上护杆具有第一容纳空间,所述第一连杆设在所述第一容纳空间内;所述下护杆具有第二容纳空间,所述第二连杆设在所述第二容纳空间内。
- 根据权利要求26所述的升降护栏,其特征在于,所述缓冲机构设在所述第二容纳空间内,且所述缓冲机构设在所述第二连杆的远离所述下护杆的端部的一侧。
- 根据权利要求26或27所述的升降护栏,其特征在于,所述第二容纳空间构造成当所述上护杆下降至贴合所述下护杆上时,所述中间伸缩杆和所述连杆机构可收入所述第二容纳空间内。
- 根据权利要求26-28中任一项所述的升降护栏,其特征在于,所述上护杆和所述下护杆的结构相同,所述下护杆包括第一连接板和连接所述第一连接板的第二连接板,所述第二连接板和所述第一连接板之间限定出所述第二容纳空间。
- 根据权利要求29所述的升降护栏,其特征在于,所述下护杆还包括:护套,所述下护杆的长度方向的两端设有所述护套,所述第一连接板的端部、所述第二连接板的端部设在所述护套内。
- 一种升降护栏,其特征在于,所述升降护栏包括:至少两个主杆和至少三个连杆;所述主杆包括下护杆和中间伸缩杆,所述中间伸缩杆位于所述下护杆的一侧,所述中间 伸缩杆为可伸缩杆且包括至少两个伸缩段,所述至少两个伸缩段包括第一伸缩段和第二伸缩段;所述连杆包括:第一下连杆、第二下连杆和第三连杆,所述第一下连杆的一端转动连接在所述下护杆上,所述第一下连杆的另一端转动连接在所述第一伸缩段上,所述第二下连杆的一端转动连接在所述下护杆上,所述第二下连杆的另一端转动连接在所述第二伸缩段上,所述第三连杆的一端转动连接在所述下护杆上,所述第三连杆的另一端转动连接在所述第一伸缩段上。
- 根据权利要求31所述的升降护栏,其特征在于,所述主杆还包括上护杆,所述上护杆和所述下护杆位于所述中间伸缩杆的两侧;所述连杆包括:第一上连杆和第二上连杆,所述第一上连杆的一端转动连接在所述上护杆上,所述第一上连杆的另一端转动连接在所述伸缩段上,所述第二上连杆的一端转动连接在所述上护杆上,所述第二上连杆的另一端转动连接在所述伸缩段上,所述第二上连杆与所述第一上连杆连接的所述伸缩段不同。
- 根据权利要求32所述的升降护栏,其特征在于,所述第一上连杆连接在所述第一伸缩段上,所述第一下连杆的转轴和所述第一上连杆的转轴之间连接有第一啮合组件;所述第二上连杆连接在所述第二伸缩段上,所述第二下连杆的转轴和所述第二上连杆的转轴之间连接有第二啮合组件。
- 根据权利要求32或33所述的升降护栏,其特征在于,所述下护杆和所述上护杆的至少一个上设在朝向所述中间伸缩杆开口的容纳槽,在所述中间伸缩杆缩短至第一设定长度时,所述中间伸缩杆的至少部分位于所述容纳槽内。
- 根据权利要求34所述的升降护栏,其特征在于,所述下护杆和所述上护杆上均设有所述容纳槽,在所述中间伸缩杆缩短至所述第一设定长度时,所述中间伸缩杆的一部分位于其中一所述容纳槽内,所述中间伸缩杆的另一部分位于其中另一所述容纳槽内。
- 根据权利要求31-35中任一项所述的升降护栏,其特征在于,至少一个所述连杆的转轴处设有扭簧。
- 根据权利要求31-36中任一项所述的升降护栏,其特征在于,所述中间伸缩杆的所述伸缩段均为管段,多个所述管段沿所述中间伸缩杆的长度方向依次套设,位于内层的所述管段上连接有导向块,所述导向块用于在位于外层的所述管段内滑动。
- 根据权利要求31-37中任一项所述的升降护栏,其特征在于,所述升降护栏上设有至少一个锁固结构,所述锁固结构包括:锁固部和解锁部,所述锁固部用于在所述中间伸缩杆伸长至第二设定长度时进行锁固,所述解锁部用于在被触发时使所述锁固部进行解锁,所述锁固部满足以下情况中至少一个:所述锁固部用于锁固在所述主杆和所述连杆之间;所述锁固部用于锁固在所述中间伸缩杆的相邻两个所述伸缩杆之间。
- 根据权利要求38所述的升降护栏,其特征在于所述锁固部用于锁固在所述主杆和所述连杆之间,所述锁固部包括:第一卡钩,所述第一卡钩通过旋转轴连接在所述主杆上;第二卡钩,所述第二卡钩一体形成在所述连杆上,所述第二卡钩位于所述连杆的转轴的朝向所述第一卡钩的一侧,在所述中间伸缩杆缩短至第一设定长度时所述第二卡钩脱离所述第一卡钩,在所述中间伸缩杆伸长至第二设定长度时所述第二卡钩与所述第一卡钩相配合;保持弹性件,所述保持弹性件连接在所述主杆和所述第一卡钩之间,所述保持弹性件用于在所述中间伸缩杆于第二设定长度时,驱动所述第一卡钩卡在所述第二卡钩上。
- 根据权利要求39所述的升降护栏,其特征在于,所述锁固结构为两个,两个所述锁固结构的所述第一卡钩位于同一所述主杆的两端,每个所述锁固结构的所述解锁部均为连接在所述第一卡钩上的拔片,所述主杆的两端分别设有容纳所述拔片的端槽。
- 一种护理床,其特征在于,包括根据权利要求1至40中任一项所述的升降护栏。
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