CN115487014A - Locking assembly, guardrail and nursing bed - Google Patents

Abstract

The invention discloses a locking assembly, a guardrail and a nursing bed, wherein the locking assembly comprises a fixed seat and a locking piece, a first through hole is formed in the bottom of the fixed seat, the locking piece comprises a lock rod, a first locking piece and a second locking piece, the lock rod is connected with the fixed seat and abutted to the first through hole, the lock rod eccentrically rotates relative to the fixed seat to switch between an unlocking state and a locking state, the first locking piece is connected to one end of the lock rod and penetrates through the first through hole to be matched with the fixed seat, the second locking piece is arranged in the circumferential direction of the lock rod, the first locking piece can penetrate through the first through hole in the unlocking state, and the second locking piece and the fixed seat are arranged at intervals to enable the locking piece to unlock the fixed seat; when the fixing seat is in a locking state, the first locking piece is in cross fit with the first through hole, and the second locking piece is abutted against the inner wall of the fixing seat, so that the fixing seat is locked by the locking piece. The locking assembly provided by the embodiment of the invention is convenient to assemble and disassemble, and the whole position is stable after assembly, so that the practicability of the locking assembly is improved.

Description

Locking assembly, guardrail and nursing bed

Technical Field

The invention belongs to the technical field of medical appliances, and particularly relates to a locking assembly, a guardrail and a nursing bed.

Background

The nursing bed is a sickbed used by a patient who is inconvenient to move in hospital or at home for nursing, and the nursing bed is mainly used for facilitating nursing staff to take care of the patient and facilitating rehabilitation of the patient.

In the prior art, in order to prevent a patient from falling off from a nursing bed when the patient turns over or moves, a guardrail is arranged on the periphery of the nursing bed to improve the safety of the nursing bed.

The nursing bed and the guardrail in the current market are usually of an integrated structure or a forced plugging structure, the integrated structure cannot be used for independently disassembling the guardrail when the guardrail needs to be maintained or cleaned, and a special tool is needed to disassemble the guardrail if necessary, so that the guardrail is very inconvenient to maintain and clean; although the dismantlement of guardrail can be realized to plug structure by force, but along with the increase of use number of times, the mutual friction between guardrail and the nursing bed can seriously wear and tear the guardrail, leads to the locking force of guardrail to descend, and the guardrail will not play protection patient's effect, reduces the security of nursing bed.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a locking assembly which can detachably connect a guardrail to a nursing bed, so that the guardrail is convenient to disassemble, the position of the guardrail is stable after the guardrail is installed in place, and the technical problems that the guardrail is difficult to disassemble or is easy to wear after being disassembled for many times and the service life of the guardrail is shortened in the prior art are solved.

A second object of the present invention is to provide a guard rail.

The third purpose of the invention is to provide a nursing bed.

According to an embodiment of the present invention, a locking assembly includes: the bottom of the fixed seat is provided with a first through hole; a locking piece, the locking piece comprising: the locking rod is connected to the fixing seat and abuts against the first through hole; the lock rod can eccentrically rotate relative to the fixed seat so as to be switched between an unlocking state and a locking state; the first locking piece is connected to one axial end of the lock rod and penetrates through the first through hole to be matched with the fixed seat; the second locking piece is arranged on the circumferential direction of the lock rod; when the lock is in the unlocking state, the first locking piece can penetrate through the first through hole, and the second locking piece and the fixed seat are arranged at intervals so that the locking piece can unlock the fixed seat; when the locking state is achieved, the first locking piece is in cross fit with the first through hole, and the second locking piece is abutted against the inner wall of the fixed seat, so that the fixed seat is locked by the locking piece.

According to the locking assembly provided by the embodiment of the invention, the first locking piece and the second locking piece are connected to the locking rod, when the locking rod is switched from the unlocking state to the locking state, the locking rod firstly drives the first locking piece to pass through the first through hole, at the moment, the bottom wall of the locking rod abuts against one end of the bottom of the fixing seat, the locking piece is ensured not to continuously move downwards, then the locking rod drives the first locking piece and the second locking piece to rotate, the first locking piece is in cross fit with the first through hole, the locking piece is ensured not to move upwards, and the position of the locking piece in the axial direction is limited; the second locking piece is abutted against the inner wall of the fixed seat, so that the contact area of the locking piece and the fixed seat is increased, the position of the locking piece in the circumferential direction is limited, the locking piece is stable relative to the fixed seat, no shaking occurs, and the position stability of the locking assembly after the locking assembly is assembled is ensured; when the locking rod is switched to the unlocking state from the locking state, the locking rod can drive the first locking piece and the second locking piece to rotate, the first locking piece can pass through the first through hole, the second locking piece and the fixing seat are arranged at intervals, the locking piece can be guaranteed to move relative to the fixing seat, the locking piece can be conveniently detached from the fixing seat, and the locking assembly is convenient to detach. The locking assembly can easily fix or detach the locking part, is stable in use and convenient to detach.

According to the locking assembly of an embodiment of the present invention, the first through hole is a long hole, the extending direction of the first locking piece is perpendicular to the extending direction of the locking rod, and the projection area of the first locking piece in the horizontal plane is smaller than or equal to the projection area of the first through hole in the same horizontal plane.

According to the locking assembly of an embodiment of the present invention, the locking member further includes a limiting member, the limiting member is disposed in the fixing base, the limiting member is provided with a second through hole eccentrically disposed, and the locking rod passes through the second through hole and can rotate relative to the limiting member.

Optionally, the limiting part includes a hollow supporting tube, the supporting tube is connected in the fixing seat, the second through hole is formed at the bottom of the supporting tube, the locking rod is nested in the supporting tube, a first limiting hole is formed in the side wall of the supporting tube, and the second locking part is swingably arranged in the first limiting hole.

Optionally, a second limiting hole is formed in the side wall of the supporting tube, which is far away from one end of the first limiting hole in the axial direction, the locking member further includes a shifting lever, the shifting lever is connected to one end of the locking lever, which is far away from the first locking member in the axial direction, and the shifting lever is swingably arranged in the second limiting hole.

Optionally, the extending directions of the first limiting hole and the second limiting hole on the support tube are the same, and the angle of rotation of the shift lever in the second limiting hole is equal to the angle of rotation of the second locking member in the first limiting hole.

According to an embodiment of the locking assembly of the present invention, the second locking member is an elastic friction member, and the elastic friction member protrudes from a surface of the lock rod.

Optionally, a first mounting groove is formed in the lock rod, the elastic friction piece is connected to the first mounting groove, a plurality of protruding blocks are formed on one side, away from the first mounting groove, of the elastic friction piece, the protruding blocks are arranged at intervals, and the protruding blocks can abut against the inner wall of the fixing seat.

Optionally, the fixing seat includes a base and a connecting cylinder, an extending direction of the connecting cylinder is perpendicular to a plane where the base is located, and one end of the supporting tube extends into the connecting cylinder and contacts a side wall of the connecting cylinder; the base is provided with the first through hole, and the projection of the first through hole on the horizontal plane is positioned in the projection of the connecting cylinder on the same horizontal plane.

A guardrail according to an embodiment of the present invention includes: the locking assemblies are the locking assemblies; the guard plate is connected with the locking assemblies.

According to the guardrail disclosed by the embodiment of the invention, the locking assembly is arranged on the guardrail, so that the guardrail can be connected with the nursing bed stably through the locking assembly in the process of connecting the guardrail with the nursing bed, and the guardrail can be easily detached through the locking assembly when the guardrail needs to be detached, so that the portability of guardrail detachment is improved, the guardrail cannot be abraded in the process of detaching the guardrail, and the service life of the guardrail is prolonged.

According to the guardrail disclosed by the embodiment of the invention, each guard plate is detachably connected with the support pipes of the two locking assemblies, the guard plates are provided with matching grooves facing the support pipes, the support pipes are clamped in the matching grooves, and the support pipes and the matching grooves are fixed through fasteners.

Optionally, the guardrail further comprises a connecting rod and a decorative sleeve, and two ends of the connecting rod are respectively connected with the end parts of the two supporting tubes; the decorative sleeve is coated on the circumferential direction of the supporting tube and the matching groove, so that a seam between the supporting tube and the matching groove is invisible.

A care bed according to an embodiment of the present invention includes: a bed body; at least one guardrail, the guardrail is aforementioned guardrail, at least one the guardrail is connected in the lateral part of bed body.

According to the nursing bed provided by the embodiment of the invention, the guardrail can improve the safety of the nursing bed by arranging the guardrail, and the locking assembly is arranged on the guardrail; when the guardrail need be demolishd from the bed body, also can directly demolish the guardrail through the lock solid subassembly, improve the portability that the guardrail was demolishd. The utility model provides a nursing bed, the guardrail easy dismounting that the security performance is good and the nursing bed is gone up.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of a locking assembly according to one embodiment of the present invention.

Fig. 2 is a partially enlarged view of region i in fig. 1.

Fig. 3 is a schematic structural diagram of a locking member according to an embodiment of the present invention.

Fig. 4 is a partial enlarged view of the area ii in fig. 3.

Fig. 5 is a partially enlarged view of region iii in fig. 3.

FIG. 6 is a schematic view of the structure of the lock lever and the first locking member according to one embodiment of the present invention.

FIG. 7 is a schematic structural diagram of a second locking member according to an embodiment of the invention.

Fig. 8 is a schematic view of another angle of the locking member according to an embodiment of the present invention.

FIG. 9 is a partial cross-sectional view of the locking assembly with the locking bar in the locked state in accordance with one embodiment of the present invention.

FIG. 10 is a bottom view of the locking assembly with the locking bar in the locked state according to one embodiment of the present invention.

Fig. 11 is a schematic view showing the construction of a guard rail according to an embodiment of the present invention.

FIG. 12 is an exploded view of the fender and the locking assembly according to one embodiment of the present invention.

Fig. 13 is a schematic structural view of a nursing bed according to an embodiment of the present invention.

Reference numerals:

100. locking the assembly;

1. a fixed seat;

11. a base; 111. a first through hole;

12. a connecting cylinder;

2. a locking member;

21. a lock lever; 211. a first mounting groove; 212. a second mounting groove;

22. a first locking member;

23. a second lock; 231. an elastic friction member; 2311. a bump;

24. a stopper;

241. supporting a tube;

2411. a second through hole; 2412. a first limiting hole;

2413. a second limiting hole; 2414. a limiting plate;

25. a deflector rod;

200. a guardrail;

210. a guard plate; 2101. a mating groove;

220. a connecting rod;

230. a decorative sleeve;

300. a nursing bed;

310. a bed body.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "width," "thickness," "upper," "lower," "left," "right," "vertical," "top," "bottom," "inner," "outer," "axial," "circumferential," and the like are used in the orientations and positional relationships indicated in the figures, which are based on the orientation or positional relationship shown in the figures, and are used for convenience of description and simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The locking assembly 100 according to the present invention is described with reference to the drawings.

A locking assembly 100 according to an embodiment of the present invention, as shown in fig. 1, includes: a fixed seat 1 and a locking piece 2.

As shown in fig. 1, a first through hole 111 is formed at the bottom of the fixing base 1.

As shown in fig. 1, the locking member 2 includes a lock rod 21, a first locking member 22 and a second locking member 23, the lock rod 21 is connected to the fixing base 1, and the lock rod 21 abuts against the first through hole 111. Here, the lock lever 21 may be connected to the fixing base 1 and abut against the bottom of the fixing base 1.

The lock lever 21 is eccentrically rotatable with respect to the fixed base 1 to switch between an unlocked state and a locked state. Here, the lock lever 21 is movable and has an unlocked state and a locked state, and the lock lever 21 is movable between the unlocked state and the locked state.

As shown in fig. 1, the first locking member 22 is connected to one axial end of the lock lever 21, and the first locking member 22 is fitted to the fixing base 1 through the first through hole 111.

As shown in fig. 1, the second lock member 23 is provided in the circumferential direction of the lock lever 21.

In an unlocking state, the first locking member 22 can pass through the first through hole 111, and the second locking member 23 is spaced from the fixing base 1, so that the locking member 2 is disengaged from the fixing base 1; in the locked state, the first locking member 22 is cross-fitted with the first through hole 111, and the second locking member 23 is stopped against the inner wall of the fixing base 1, so that the fixing base 1 is locked by the locking member 2. It should be noted that, the first locking element 22 is cross-fitted with the first through hole 111 means that the extending directions of the first locking element 22 and the first through hole 111 are different, and since the first through hole 111 is opened at the bottom of the fixing base 1, when the first locking element 22 is cross-fitted with the first through hole 111, the first locking element 22 can abut against the bottom of the fixing base 1.

As can be seen from the above structure, in the locking assembly 100 according to the embodiment of the present invention, the first through hole 111 is formed at the bottom of the fixing base 1, and the first through hole 111 mainly plays a role of avoiding the lock rod 21 and the first locking member 22, so as to ensure that when the lock rod 21 is in the unlocking state, the first locking member 22 disposed at one axial end of the lock rod 21 can pass through the bottom of the fixing base 1 through the first through hole 111; when the lock rod 21 is in the locked state, the first locking member 22 can be cross-fitted with the bottom of the fixing base 1 through the first through hole 111, that is, the fixing base 1 can be unlocked by the locking member 2 in the unlocked state, and the fixing base 1 can be locked by the locking member 2 in the locked state, so that the locking member 2 and the fixing base 1 can be detachably connected.

By connecting the lock rod 21 to the fixing base 1 and abutting the lock rod 21 to the bottom of the fixing base 1, the bottom of the fixing base 1 can play a role of limiting the lock rod 21, so that the lock rod 21 is stable in position relative to the fixing base 1.

The arrangement of the locking lever 21 to be eccentrically rotatable relative to the holder 1, i.e. the locking lever 21 being eccentrically arranged relative to the holder 1, ensures that the locking lever 21 is positioned differently relative to the holder 1 in the locked state and in the unlocked state, i.e. that the locking lever 21 has the locked state and the unlocked state.

By connecting the first locking piece 22 to one axial end of the lock rod 21, the second locking piece 23 is arranged in the circumferential direction of the lock rod 21, when the lock rod 21 is switched from the unlocking state to the locking state, the lock rod 21 firstly drives the first locking piece 22 to pass through the first through hole 111, at this time, the bottom wall of the lock rod 21 abuts against one end of the bottom of the fixing base 1, it is ensured that the locking piece 2 does not continuously move downwards due to gravity or manual pushing, then the lock rod 21 drives the first locking piece 22 and the second locking piece 23 to rotate, the first locking piece 22 is in cross fit with the first through hole 111 and contacts with the other end of the bottom of the fixing base 1, it is ensured that the locking piece 2 does not move upwards, so as to limit the position of the locking piece 2 in the axial direction, the second locking piece 23 abuts against the inner wall of the fixing base 1, further, the contact area between the locking piece 2 and the fixing base 1 is increased, at this time, the second locking piece 23 is pressed with the fixing base 1 and fixes the locking piece 2 by friction force, so as to prevent the locking piece 2 from shaking, so as to limit the position of the locking piece 2 in the circumferential direction, so that the position of the locking piece 2 is stable relative to the fixing base 1, and the stability of the assembly 100 is increased; when the lock rod 21 rotates relative to the fixing base 1 and is switched from the locking state to the unlocking state, the lock rod 21 can drive the first locking piece 22 and the second locking piece 23 to rotate, so that the first locking piece 22 can pass through the first through hole 111, the second locking piece 23 is arranged at an interval with the fixing base 1, the locking piece 2 can be ensured to move relative to the fixing base 1, the locking piece 2 can be conveniently detached from the fixing base 1, the locking assembly 100 is convenient to detach, and further the locking assembly 100 can be easily fixed or detached, and the locking assembly 100 can be ensured to be stable and stable in the using process through the arrangement, and is convenient to detach.

It should be noted that, when the locking rod 21 drives the first locking member 22 to pass through the first through hole 111, the locking rod 21 does not pass through the first through hole 111 and abuts against the fixing base 1, so that, in the process of connecting the locking member 2 and the fixing base 1, the locking member 2 does not move downward due to gravity or human pushing, so as to limit the moving distance of the locking member 1.

The first locking member 22 is connected to the locking rod 21 in the axial direction, and when the locking rod 21 is in the locking state, the first locking member 22 and the bottom wall of the locking rod 21 cooperate to mainly define the position of the locking rod 21 in the axial direction, i.e. to ensure that the locking rod 21 does not move axially relative to the fixed seat 1.

The second locking member 23 is disposed on the circumference of the lock rod 21, and when the lock rod 21 is in the locking state, the second locking member 23 mainly defines the position of the lock rod 21 in the circumference direction, i.e. it is ensured that the lock rod 21 does not rotate in the circumference direction relative to the fixing base 1.

Therefore, by providing the first locking member 22 and the second locking member 23, when the lock rod 21 is in the locking state, the first locking member 22 and the second locking member 23 cooperate to define the position of the lock rod 21 in the axial direction and the circumferential direction at the same time, that is, to ensure that the lock rod 21 is stable and fixed relative to the fixing base 1 without deviation.

It should be noted that the locking state and the unlocking state of the lock rod 21 are mainly states relative to the fixing base 1, and after the lock rod 21 rotates from the locking state to the unlocking state, the lock rod 21 can drive the first locking member 22 and the second locking member 23 to move to any position relative to the fixing base 1; when the lock rod 21 needs to rotate from the unlocking state to the locking state, firstly, the lock rod 21 drives the first locking piece 22 and the second locking piece 23 to move relative to the fixing base 1, and the first locking piece 22 passes through the first through hole 111, and then, the lock rod 21 drives the first locking piece 22 and the second locking piece 23 to rotate relative to the fixing base 1, so that the first locking piece 22 rotates relative to the fixing base 1 and is in cross fit with the first through hole 111, and the first locking piece 22 rotates relative to the fixing base 1 and abuts against the inner wall of the fixing base 1.

It can be understood that, compared with the prior art, when the lock rod 21 is in the locked state, the relative position between the locking member 2 and the fixing base 1 is stable, so as to improve the structural stability of the locking assembly 100; when the lock rod 21 is in the unlocking state, the locking member 2 can move relative to the fixing base 1, so that the locking member 2 and the fixing base 1 are detachably connected, the detachment is simple and convenient, meanwhile, large friction force cannot be generated, the portability of detachment of the locking assembly 100 is improved, and the service life of the locking assembly 100 is prolonged.

In the description of the present invention, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between the described features, whether they are sequential or not.

Alternatively, the first locking member 22 is detachably attached to one axial end of the lock lever 21. The detachable connection can increase the connection strength of the first locking piece 22 and the lock rod 21, so that the relative positions of the first locking piece 22 and the lock rod 21 are stable, and the lock rod 21 can drive the first locking piece 22 to rotate together when rotating in the locking state and the unlocking state.

It should be noted that the detachable connection may be one of a threaded connection and a snap connection.

Of course, in other examples, the connection mode of the first locking member 22 and the lock lever 21 is not limited to the detachable connection described above, and the first locking member 22 and the lock lever 21 may also be non-detachably connected by welding, bonding, or the like. The connection mode of the first locking piece 22 and the lock rod 21 is not particularly limited, as long as the relative position of the first locking piece 22 and the lock rod 21 is stable, and the lock rod 21 can drive the first locking piece 22 to rotate in the rotating process.

In other examples, the first locking member 22 and the locking lever 21 may be formed by an integral molding process. The integral forming process saves the processes of polishing, connecting and the like in the previous period, and improves the assembly efficiency of the first locking piece 22 and the locking rod 21.

In some specific examples, in order to limit the moving distance of the locking member 2, an axial limiting member (equivalent to the limiting plate 2414 hereinafter) may also be formed in the circumferential direction of the lock rod 21, the distance between the axial limiting member and the first locking member 22 is equal to the thickness of the bottom of the fixed seat 1, and the projection area of the axial limiting member on the horizontal plane is larger than the projection area of the first through hole 111 on the horizontal plane. When the locking member 2 and the fixing base 1 are locked, the first locking member 22 passes through the first through hole 111 and is located at one end of the fixing base 1, the axial limiting member is located at the other end of the first through hole 111, and the first locking member 22 and the axial limiting member on the locking rod 21 are matched to limit the axial position of the locking rod 21, so that the locking rod 21 is prevented from moving axially relative to the fixing base 1, and the structure of the locking assembly 100 is stable.

In some embodiments of the present invention, as shown in fig. 1, the first through hole 111 is a long hole. It should be noted that the elongated hole mentioned herein mainly means that the dimension of the first through hole 111 in the length direction is larger than the dimension of the first through hole 111 in the width direction, the first through hole 111 formed as the elongated hole is matched with the first locking member 22, and when the lock lever 21 is in the unlocking state, the first locking member 22 can pass through the first through hole 111 by using the larger dimension of the first through hole 111 in the length direction; when the lock rod 21 drives the first locking member 22 to rotate from the unlocking state to the locking state, the first locking member 22 rotates relative to the first through hole 111, and because the size of the first through hole 111 in the width direction is small, the first locking member 22 can be in cross fit with the first through hole 111 by using the size of the first through hole 111 in the width direction, so as to limit the position of the lock rod 21 in the axial direction.

Optionally, the projected area of the first locking member 22 in the horizontal plane is smaller than or equal to the projected area of the first through hole 111 in the same horizontal plane. When the lock rod 21 is in the unlocking state, it is ensured that the first locking member 22 can smoothly pass through the first through hole 111, so that the first locking member 22 smoothly moves relative to the first through hole 111, and the locking assembly 100 is conveniently assembled and disassembled.

In a specific example, the length of the first through hole 111 is greater than the length of the first latch 22, and the width of the first through hole 111 is greater than the width of the first latch 22 and less than the length of the first latch 22. The length of the first through hole 111 is set to be greater than the length of the first locking member 22, and the width of the first through hole 111 is set to be greater than the width of the first locking member 22, mainly to ensure that the first locking member 22 can smoothly pass through the first through hole 111 when the first locking member 22 is parallel to the first through hole 111; the width of the first through hole 111 is set to be smaller than the length of the first locking member 22, because the first through hole 111 is opened at the bottom of the fixing base 1, when the locking rod 21 drives the first locking member 22 to rotate to the locking state relative to the fixing base 1, the first locking member 22 can contact the bottom of the fixing base 1 and cannot pass through the first through hole 111, so as to cooperate with the axial limiting member to limit the axial position of the locking rod 21.

Alternatively, the first through hole 111 may be one of a rectangular hole or an elliptical hole. The specific shape of the elongated hole is not particularly limited as long as it is ensured that the first locking member 22 can pass through both the first through hole 111 and the first through hole 111 in a cross-fit manner.

Alternatively, as shown in fig. 1, the extending direction of the first latch 22 is perpendicular to the extending direction of the lock lever 21. It is ensured that the first locking member 22 can cross-fit with the bottom of the fixing base 1 to define the position of the locking lever 21 when the locking lever 21 is connected to the fixing base 1 in the locked state, so that the locking lever 21 does not move in the axial direction.

In a specific example, as shown in fig. 1, the lock lever 21 extends in the up-down direction, and the first lock member 22 extends in the left-right direction. So that the first locking piece 22 and the locking lever 21 extend in different directions and are perpendicular to each other.

Optionally, the extension direction of the first locking piece 22 is the same as the extension direction of the bottom of the fixing base 1. That is, the extension direction of the first locking piece 22 is the same as the extension direction of the base 11 (the specific structure of the base 11 can be referred to below), when the lock rod 21 is connected to the fixing base 1 in the locked state, the first locking piece 22, which has the same extension direction as the extension direction of the base 11, can increase the contact area with the fixing base 1, so that the lock rod 21 does not move axially relative to the fixing base 1.

In some embodiments of the present invention, as shown in fig. 1, the locking member 2 further includes a limiting member 24, the limiting member 24 is disposed in the fixing base 1, a second through hole 2411 is formed in the limiting member 24, and the locking rod 21 passes through the second through hole 2411 and can rotate relative to the limiting member 24. Through the second through hole 2411 that sets up eccentric settings on the locating part 24, set up locking lever 21 in second through hole 2411 and can guarantee that locking lever 21 can eccentrically rotate for fixing base 1 for locking lever 21 has unblock state and locking state.

It should be noted that the eccentric arrangement here means that the center of the second through hole 2411 has a certain distance from the axis of the limiting member 24, that is, the second through hole 2411 is arranged near one side of the limiting member 24.

Optionally, as shown in fig. 1, the second through hole 2411 is a round hole. Because the lock rod 21 is disposed in the second through hole 2411 and needs to rotate relative to the second through hole 2411, the second through hole 2411 is configured as a circular hole, which can ensure that the lock rod 21 rotates smoothly in the rotating process, and no locking or immovable phenomenon occurs, that is, ensure that the lock rod 21 is smoothly switched between the locking state and the unlocking state.

It should be emphasized that the present application provides the second through hole 2411 on the limiting member 24. On one hand, the second through hole 2411 may function to define the lock lever 21, so that the lock lever 21 may rotate around the center of the second through hole 2411 during the rotation process to define the rotation position of the lock lever 21; on the other hand, in the process of assembling the locking piece 2, the installation position of the lock rod 21 can be quickly positioned through the position of the second through hole 2411, so that the assembling speed of the locking piece 2 is increased, and the assembling difficulty of the locking piece 2 can be reduced.

Alternatively, as shown in fig. 1, the lock lever 21 may be a circular tube, and the lock lever 21 in the shape of a circular tube is rotatably disposed in the second through hole 2411. The round tube and the round hole are matched, so that the locking rod 21 can be ensured to rotate smoothly in the rotating process, and the rotating efficiency and the fluency of the locking rod 21 are improved.

Alternatively, the locking rod 21 may be a solid tube made of metal or other sufficiently strong material. The locking rod 21 has the advantages that the structural strength of the locking rod 21 is increased, the first locking piece 22 and the second locking piece 23 are connected to the locking rod 21 at the same time, if the structural strength of the locking rod 21 is low, the locking rod 21 cannot drive the first locking piece 22 and the second locking piece 23 to rotate in the rotating process, and the locking rod 21 can break due to forced rotation, so that the locking rod 21 can be made into a solid tube with enough strength, the first locking piece 22 and the second locking piece 23 can be driven to rotate in the rotating process of the locking rod 21, the service life of the locking rod 21 can be prolonged, and the use cost of the locking piece 2 is reduced.

Of course, in other examples, the second through hole 2411 may also be one of a square hole or a diamond hole. When the second through hole 2411 is a square hole or a diamond hole, the side wall of the lock rod 21 abuts against the inner wall of the second through hole 2411, and the inner wall of the second through hole 2411 is used for limiting the rotation position of the lock rod 21, so that the lock rod 21 is ensured to rotate around a central point all the time, and the phenomenon of locking or immobility of rotation cannot occur.

Alternatively, as shown in fig. 1, the limiting member 24 includes a hollow supporting tube 241, the supporting tube 241 is connected in the fixing base 1, a second through hole 2411 is formed at the bottom of the supporting tube 241, and the locking rod 21 is nested in the supporting tube 241 (the schematic view after the locking rod 21 and the supporting tube 241 are assembled can be seen in fig. 8). The second through hole 2411 mainly plays a role of avoiding the lock rod 21, so that the lock rod 21 can be embedded in the supporting tube 241 through the second through hole 2411, the lock rod 21 is embedded in the supporting tube 241, and then the supporting tube 241 is matched with the second through hole 2411 arranged at the bottom of the supporting tube 241, so as to limit the position of the lock rod 21, and ensure that the lock rod 21 is stable in position and cannot shake in the rotating process, so that the lock rod 21 is ensured to rotate between an unlocking state and a locking state, in addition, the supporting tube 241 can also play a role of protecting the lock rod 21, and ensure that an external object cannot damage the lock rod 21 in the transportation or carrying process of the locking piece 2, and the service life of the lock rod 21 is prolonged.

Optionally, as shown in fig. 1 and fig. 2, a limit plate 2414 is disposed at the bottom of the support tube 241, a second through hole 2411 is formed in the limit plate 2414, and the lock rod 21 extends into the support tube 241 through the second through hole 2411. The second through hole 2411 eccentrically disposed is facilitated to be formed by providing the limit plate 2414 to limit the rotational position of the lock lever 21.

Alternatively, the limit plate 2414 is detachably attached to the bottom of the support pipe 241. So that the position of the limit plate 2414 is stabilized with respect to the support pipe 241.

Of course, in other examples, the limit plate 2414 may be non-detachably connected to the bottom of the support pipe 241. The specific connection manner of the limiting plate 2414 and the supporting tube 241 is not particularly limited, as long as the relative position of the limiting plate 2414 and the supporting tube 241 is stable.

In other examples, the limit plate 2414 and the support tube 241 may also be formed as a unitary structure.

The support tube 241 has a hollow structure. The hollow support tube 241 leaves an escape space for the arrangement of the lock rod 21, so that the lock rod 21 is conveniently embedded in the support tube 241 to limit the position of the lock rod 21 and play a role in protecting the lock rod 21.

Alternatively, as shown in fig. 3 and 4, a first limit hole 2412 is formed in the side wall of the support pipe 241, and the second lock member 23 is swingably provided in the first limit hole 2412. The first limit hole 2412 is used to limit the rotation angle of the second lock member 23 on the first aspect, so that the second lock member 23 rotates within a predetermined rotation angle range; in a second aspect, the first limiting hole 2412 is used to limit the rotation direction of the second locking member 23, so that the second locking member 23 rotates within a predetermined rotation direction range, and it is ensured that the second locking member 23 can be disposed at an interval with the fixing base 1 or abut against the inner wall of the fixing base 1; in a third aspect, the first limiting hole 2412 is used for avoiding the second locking member 23, because the second locking member 23 is disposed in the circumferential direction of the lock rod 21, the lock rod 21 is embedded in the support tube 241, and the first limiting hole 2412 is disposed to ensure that the second locking member 23 disposed in the support tube 241 can extend out of the support tube 241 and stop against the inner wall of the fixing base 1.

Optionally, the width of the first position-limiting hole 2412 is larger than the width of the second locking member 23. The second lock 23 is ensured to be swingably disposed in the first limit hole 2412, and the second lock 23 can be displaced relative to the first limit hole 2412.

Alternatively, the upper and lower surfaces of the second lock member 23 abut on the inner walls of the first stopper hole 2412, respectively. Thus, when the second locking member 23 is connected to the lock rod 21 through the first position-limiting hole 2412, the second locking member 23 and the first position-limiting hole 2412 cooperate to further limit the position of the lock rod 21, so as to ensure that the lock rod 21 does not move up and down relative to the support pipe 241, i.e., the relative positions of the lock rod 21 and the support pipe 241 are stable.

Optionally, as shown in fig. 1 and 3, the locking element 2 further includes a shift lever 25, and the shift lever 25 is connected to an axial end of the lock lever 21 away from the first locking element 22. The shift lever 25 is connected to the lock lever 21, and the shift lever 25 mainly functions to drive the lock lever 21 to rotate between the unlock state and the lock state.

Alternatively, as shown in fig. 3 and 5, a second limit hole 2413 is formed in a side wall of the support pipe 241 at an end axially distant from the first limit hole 2412, and the shift lever 25 is swingably provided in the second limit hole 2413. The second limiting hole 2413 is used to limit the rotation angle of the shift lever 25, so that the shift lever 25 rotates within a predetermined rotation angle range; in a second aspect, the second limiting hole 2413 is used for limiting the rotation direction of the shift lever 25, so that the shift lever 25 rotates within a predetermined rotation direction range, and it is ensured that the shift lever 25 can drive the lock lever 21 to rotate; in a third aspect, the second limiting hole 2413 is used for avoiding the shift lever 25, because the shift lever 25 is arranged in the circumferential direction of the lock rod 21, the lock rod 21 is embedded in the support tube 241, and the second limiting hole 2413 is arranged to ensure that the shift lever 25 arranged in the support tube 241 can extend out of the support tube 241, so that a user can shift the shift lever 25 conveniently.

Optionally, the upper and lower surfaces of the shift lever 25 abut against the inner walls of the second limiting holes 2413, respectively. To further define the position of the lock lever 21 to ensure that the lock lever 21 does not move up and down relative to the support pipe 241.

In a specific example, when the fixing base 1 and the locking member 2 need to be combined, the shift lever 25 is manually shifted to drive the lock rod 21 to rotate from an unlocking state to a locking state, at this time, the second locking member 23 abuts against the inner wall of the fixing base 1, the locking member 2 is fixed by friction force after the second locking member 23 and the fixing base 1 are mutually extruded to prevent shaking, the first locking member 22 connected to one axial end of the lock rod 21 is in cross fit with the bottom of the fixing base 1 to prevent the locking member 2 from falling off when a user lifts the locking member 2, the lock rod 21 is connected to the fixing base 1, and the fixing base 1 ensures that the lock rod 21 cannot move downwards, so that the relative positions of the locking member 2 and the fixing base 1 are stable in a matching process; when the fixing base 1 and the locking element 2 need to be disengaged from the assembled state, the shift lever 25 is merely shifted to rotate the lock lever 21 to the unlocked state, the second locking element 23 will be disengaged from the fixing base 1, and the first locking element 22 will be rotated to a position parallel to the first through hole 111, at this time, there is no obstruction in the moving path of the first locking element 22, the frictional contact between the second locking element 23 and the fixing base 1 will also be disengaged, and the entire locking element 2 can be smoothly taken out of the fixing base 1.

Alternatively, as shown in fig. 1 and 6, a second mounting groove 212 is formed at an axial end of the lock lever 21 away from the first locking member 22, and the shift lever 25 is connected in the second mounting groove 212. The lock rod 21 and the shift lever 25 are fixedly connected, the relative position of the lock rod 21 and the shift lever 25 is stable, the shift lever 25 can drive the lock rod 21 to rotate when a user shifts the shift lever 25, the mounting position of the shift lever 25 can be quickly positioned through the position of the second mounting groove 212 in the process of assembling the locking part 2, the assembling speed of the locking part 2 is improved, and meanwhile the assembling difficulty of the locking part 2 can be reduced.

Alternatively, the shift lever 25 may be fixedly connected to the lock lever 21 by non-detachable connection such as welding, bonding, or the like, or may be fixedly connected to the lock lever 21 by detachable connection such as screwing, clipping, or the like. The specific connection mode of the shift lever 25 and the lock lever 21 is not limited, as long as it is ensured that the shift lever 25 can drive the lock lever 21 to rotate in the process of shifting the shift lever 25.

Alternatively, the shift lever 25 may be one of a metal member or a rubber member. The structural strength of the deflector rod 25 is improved, the deflector rod 25 can drive the lock rod 21 to rotate, the service life of the deflector rod 25 is prolonged, and the use cost of the deflector rod 25 is reduced.

Alternatively, the first limit hole 2412 and the second limit hole 2413 may extend in the same direction on the support tube 241, and the angle of rotation of the shift lever 25 in the second limit hole 2413 is equal to the angle of rotation of the second lock member 23 in the first limit hole 2412. Because the second lock member 23 is disposed in the first position-limiting hole 2412 and the shift lever 25 is disposed in the second position-limiting hole 2413, the second lock member 23 can swing by the same angle when the shift lever 25 swings by a certain angle, so that the second lock member 23 can swing stably and can be effectively stopped against the inner wall of the support tube 241.

Of course, in other examples, the support tube 241 is not limited to be provided to define the position of the lock bar 21, and a support plate (not shown) may be provided.

Optionally, the supporting plate is detachably connected to the fixing base 1, the supporting plate is provided with a second through hole 2411 eccentrically arranged, and the lock lever 21 passes through the second through hole 2411 and can rotate relative to the supporting plate. Through set up the second through-hole 2411 of eccentric settings on the support piece, set up locking lever 21 in second through-hole 2411 and can guarantee that locking lever 21 can rotate for fixing base 1 is eccentric for locking lever 21 has unblock state and locking state, and second through-hole 2411 can guarantee that locking lever 21 rotates around a central point all the time, the phenomenon that can not appear rocking.

In the specific assembling process, the lock rod 21 firstly drives the first locking piece 22 to move relative to the fixed seat 1, so that the first locking piece 22 passes through the first through hole 111, and at the moment, the bottom wall of the lock rod 21 abuts against the bottom of the fixed seat 1, and the lock rod 21 is ensured not to continuously move downwards due to gravity or manual pushing; subsequently, the support sheet is sleeved on the lock rod 21 through the second through hole 2411, and the side wall of the support sheet is detachably connected to the fixed seat 1. When the lock lever 21 is switched between the unlock state and the lock state, the second through hole 2411 is used to limit the rotation position of the lock lever 21, so that the lock lever 21 rotates with the center point of the second through hole 2411 as a rotation point, and the lock lever 21 is ensured not to shake during the rotation process, thereby ensuring that the lock lever 21 rotates smoothly between the lock state and the unlock state.

It should be noted that, the support sheet can be connected to any position in the fixing base 1 by the above arrangement, and the specific arrangement position of the support sheet is not specifically limited.

In some embodiments of the present invention, as shown in fig. 1 and 7, the second locking member 23 is an elastic friction member 231, and the elastic friction member 231 is disposed to protrude from the surface of the lock lever 21. The distance of the elastic friction member 231 which is convexly arranged is smaller relative to the fixed seat 1, and when the lock rod 21 rotates from the unlocking state to the locking state, the elastic friction member 231 can be mutually extruded with the fixed seat 1 to generate a larger friction force, so that the lock rod 21 is fixed to prevent shaking.

It should be noted that, by setting the second locking member 23 as the elastic friction member 231, the elastic friction member 231 has a certain elastic deformation force, and the shifting lever 25 is toggled to adjust the mutual extrusion force between the elastic friction member 231 and the fixing base 1, and as the extrusion force is continuously increased, the contact area between the elastic friction member 231 and the fixing base 1 is correspondingly increased, the friction force is increased, the relative position between the elastic friction member 231 and the fixing base 1 is stable, and therefore, it is ensured that the lock lever 21 does not deviate from the circumferential position relative to the fixing base 1.

Alternatively, the elastic friction member 231 may be made of rubber, silicone, or other structural members having elastic deformation capability.

Alternatively, as shown in fig. 6 and 7 in combination, the locking lever 21 is formed with a first mounting groove 211, and the elastic friction member 231 is coupled in the first mounting groove 211. Make locking lever 21 and elastic friction piece 231 form fixed connection, guarantee that the relative position of locking lever 21 and elastic friction piece 231 is stable, the user is at the in-process of stirring driving lever 25, driving lever 25 can drive locking lever 21 and rotate and then drive the elastic friction piece 231 of connection on locking lever 21 and rotate, and at the in-process of assembly locking part 2, the mounted position of elastic friction piece 231 is fixed a position fast in the position of accessible first mounting groove 211, still can reduce the assembly degree of difficulty of locking part 2 when improving the assembly speed of locking part 2.

Alternatively, the elastic friction member 231 may be fixedly connected to the first mounting groove 211 by non-detachable connection such as welding, bonding, interference fit, etc., or may be fixedly connected to the first mounting groove 211 by detachable connection such as screw thread, snap fit, etc. The specific connection manner of the elastic friction member 231 and the first mounting groove 211 is not limited as long as the position of the elastic friction member 231 relative to the lock lever 21 is stable and does not shake.

Optionally, as shown in fig. 6 and 7, a plurality of protrusions 2311 are formed on a side of the elastic friction member 231 away from the first mounting groove 211, the plurality of protrusions 2311 are arranged at intervals, and the protrusions 2311 can abut against an inner wall of the fixing base 1. Because the area of the elastic friction member 231 away from the first mounting groove 211 is fixed, the number of the protruding blocks 2311 can be reduced by arranging the protruding blocks 2311 at intervals, that is, the contact area between the elastic friction member 231 and the fixing seat 1 is reduced, and it is ensured that the locking rod 21 is in the locking state, the friction force between the elastic friction member 231 and the fixing seat 1 is not too large, so that the locking rod 21 can smoothly rotate when rotating from the locking state to the unlocking state, of course, by arranging the protruding blocks 2311, compared with the arrangement of only one protruding block 2311, the contact area between the elastic friction member 231 and the fixing seat 1 can be increased by the protruding blocks 2311, and it is ensured that the elastic friction member 231 can realize the fastening function when the locking rod 21 is in the locking state.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

It should be noted that, if the plurality of protrusions 2311 are closely attached to each other, the protrusions 2311 have no deformation space when being extruded, and at this time, the protrusions 2311 will rebound after being extruded, and the locking function will fail. Therefore, the bumps 2311 are spaced apart from each other to leave a suitable deformation space, so that the bumps 2311 can be smoothly deformed after being squeezed, and the fastening purpose is achieved.

Optionally, during the assembly of the locking member 2, the lock rod 21 is first nested inside the support tube 241, then the shift lever 25 is connected to the lock rod 21 through the second position-limiting hole 2413, and then the second locking member 23 is connected to the lock rod 21 through the first position-limiting hole 2412, thereby completing the assembly of the locking member 2.

Alternatively, as shown in fig. 1, the fixing base 1 includes a base 11 and a connecting cylinder 12, the extending direction of the connecting cylinder 12 is perpendicular to the plane of the base 11, and one end of the supporting tube 241 extends into the connecting cylinder 12 and contacts the side wall of the connecting cylinder 12. The connecting cylinder 12 is used for limiting the position of the supporting tube 241, ensuring that the supporting tube 241 does not shake left and right relative to the connecting cylinder 12, and improving the position stability of the supporting tube 241 relative to the connecting cylinder 12, because the extending direction of the connecting cylinder 12 is perpendicular to the surface of the base 11, when one end of the supporting tube 241 extends into the connecting cylinder 12, the bottom of the supporting tube 241 can abut against the base 11 for limiting the position of the supporting tube 241, and ensuring that the supporting tube 241 cannot continuously move along the extending direction of the connecting cylinder 12.

Optionally, as shown in fig. 1, a first through hole 111 is formed in the base 11, and a projection of the first through hole 111 on a horizontal plane is located within a projection of the connecting cylinder 12 on the same horizontal plane. It is ensured that the opening of the first through hole 111 is smaller than the opening of the connector barrel 12, that is, after one end of the support tube 241 is inserted into the connector barrel 12 and contacts the sidewall of the connector barrel 12, the support tube 241 does not protrude from the first through hole 111, so that one end of the support tube 241 is inserted into the connector barrel 12 and abuts on the base 11 to limit the moving distance of the support tube 241.

As can be seen from fig. 9 and 10, when the lock lever 21 is in the locked state, the support tube 241 of the locking member 2 abuts on the upper portion of the base 11, and the first locking member 22 of the locking member 2 passes through the first through hole 111 and is cross-fitted with the first through hole 111. The locking piece 2 is ensured not to move axially relative to the fixed seat 1; the second locking member 23 of the locking member 2 is stopped against the inner wall of the connecting cylinder 12, so that the locking member 2 is prevented from moving in the circumferential direction relative to the fixed seat 1. Thereby ensuring that the relative position of the locking member 2 and the fixing base 1 is stable, and the position of the locking assembly 100 is stable after assembly.

A guard rail 200 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

A guard rail 200 according to an embodiment of the present invention, as shown in fig. 11, includes: a plurality of locking assemblies 100 and a shield 210.

As shown in fig. 11 and 12, the locking assembly 100 is the locking assembly 100, and the detailed structure of the locking assembly 100 is not described in detail.

As shown in fig. 11, the cover plate 210 is connected to a plurality of locking assemblies 100.

As can be seen from the above structure, the guard rail 200 according to the embodiment of the present invention increases the protection area of the guard rail 200 by arranging the guard plate 210, and after the guard rail 200 is connected to the nursing bed 300, the guard rail 200 is prevented from falling off the nursing bed 300 when a user turns over or moves, and the safety of the nursing bed 300 can be improved, and the guard rail 200 is provided with the plurality of locking assemblies 100, so that when the guard rail 200 is connected to the nursing bed 300 in a matching manner, the guard rail 200 can be connected to the nursing bed 300 by the locking assemblies 100 in a stable position, and when the guard rail 200 needs to be detached, the guard rail 200 can be easily detached by the locking assemblies 100, so that the portability of the detachment and installation of the guard rail 200 is improved, the guard rail 200 is not worn in the process of detachment of the guard rail 200, and the service life of the guard rail 200 is prolonged.

Optionally, the guard plate 210 may be made of a plastic part, a wooden part, or other materials capable of achieving a protection function, and the guard plate 210 may be fixedly connected to the locking assembly 100 through non-detachable connection, such as welding, bonding, interference fit, or the like, or may be detachably connected to the locking assembly 100 through a thread, a snap, or the like. The specific connection mode of the guard plate 210 and the locking assembly 100 is not limited, as long as the guard plate 210 is stable in position relative to the locking assembly 100 and does not shake.

In some embodiments of the present invention, each guard plate 210 is detachably connected to the support tube 241 of two locking assemblies 100, as shown in fig. 12, the guard plate 210 opens a matching groove 2101 towards the support tube 241, the support tube 241 is clamped in the matching groove 2101, and the support tube 241 and the matching groove 2101 are fixed by a fastener. The matching groove 2101 and the supporting tube 241 are matched, so that the guard plate 210 and the locking assembly 100 can be stably connected, the connection strength between the guard plate 210 and the locking assembly 100 is increased, the structural stability of the guard rail 200 is improved, and when the guard rail 200 is arranged on the nursing bed 300, the safety of the nursing bed 300 can be effectively improved by the guard rail 200.

The fastening member may be one of a bolt and a screw, or may be a fastening member of another structure, and is not particularly limited herein.

Optionally, as shown in fig. 12, the guard rail 200 further includes a connecting rod 220, and both ends of the connecting rod 220 are respectively connected to the ends of the two support pipes 241. The connecting rod 220 is used for supporting the guard rail 200, ensuring the interval between the two supporting tubes 241 to be kept stable, and reducing the shaking, so that the whole structure of the guard rail 200 is stable, and the safety of the nursing bed 300 is improved.

Optionally, as shown in fig. 12, the guardrail 200 further comprises a decorative sleeve 230, the decorative sleeve 230 wrapping around the support tube 241 and the mating slot 2101 to make the seam between the support tube 241 and the mating slot 2101 invisible. The decorative sleeve 230 can improve the aesthetic degree of the guardrail 200, and because the end part of the matching groove 2101 is directly exposed on the surface of the guardrail 200, when a user bumps at the end part of the matching groove 2101 or contacts the matching groove 2101, the end part of the matching groove 2101 is easy to scratch the user, therefore, the decorative sleeve 230 can also play a role in shielding the end part of the matching groove 2101, and the user experience is improved.

Optionally, a decorative sleeve 230 is removably attached to the side walls of the mating slot 2101. So that the decorative cover 230 and the protector plate 210 form a detachable connection, which facilitates the assembly and disassembly of the guard rail 200.

Alternatively, the decoration sleeve 230 may be made of plastic or wooden material. So set up, decorate cover 230 and still can improve the structural strength who decorates cover 230 when improving the pleasing to the eye degree of guardrail 200, and then improve guardrail 200's structural strength for guardrail 200 can effectively protect the user, can not drop from nursing bed 300 when guaranteeing that the user stands up or moves about.

The nursing bed 300 according to the embodiment of the present invention will be described with reference to the drawings.

A nursing bed 300 according to an embodiment of the present invention, as shown in fig. 13, includes: a bed 310 and at least one guardrail 200.

As shown in fig. 13, the guard rail 200 is the aforementioned guard rail 200, the specific structure of the guard rail 200 is not described in detail, and at least one guard rail 200 is connected to the side of the bed 310.

As can be seen from the above structure, in the nursing bed 300 according to the embodiment of the invention, the guardrail 200 is connected to the side portion of the bed body 310, so that the safety of the nursing bed 300 can be improved by the guardrail 200, and the user can not fall off the nursing bed 300 when turning over or moving, and because the guardrail 200 is provided with the locking assembly 100, when the guardrail 200 needs to be connected to the side portion of the bed body 310, the guardrail 200 can be connected to the bed body 310 through the locking assembly 100, so that the connection strength between the guardrail 200 and the bed body 310 is improved, and the relative position between the guardrail 200 and the nursing bed 300 is stable; when guardrail 200 need be demolishd from bed body 310, also can directly demolish guardrail 200 through lock solid subassembly 100, improve the portability that guardrail 200 was demolishd, be convenient for change, maintenance or wash guardrail 200, and guarantee that guardrail 200 can not appear blocking dead tong and cause the phenomenon of injury to user or nursing staff at the in-process of dismantling, can not appear also plug guardrail 200 along with the use number of times increases by force, guardrail 200 and bed body 310's mutual friction leads to guardrail 200 wearing and tearing, the phenomenon that guardrail 200's locking force descends.

Optionally, when the guardrail 200 is connected to the bed 310 through the locking assembly 100, an avoiding hole (not shown) is formed in the bed 310, the fixing seat 1 in the locking assembly 100 is assembled in the avoiding hole, and the guard plate 210 is connected to the plurality of locking members 2. The holder 1 and the locking member 2 cooperate to detachably connect the guard rail 200 to the bed 310.

Optionally, the fixing base 1 may be fixedly connected to the bed 310 through non-detachable connection, such as welding, bonding, or the like, or may be fixedly connected to the bed 310 through detachable connection, such as threading, clamping, or the like. The specific connection mode of the fixing seat 1 and the bed body 310 is not limited, as long as the fixing seat 1 is stable in position relative to the bed body 310, and the fixing seat does not shake.

The locking assembly 100, the guardrail 200 and the nursing bed 300 according to the embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be all embodiments obtained by combining the foregoing technical solutions, and are not limited to the following specific embodiments, which fall within the scope of the present invention.

Example 1

A locking assembly 100, as shown in fig. 1, includes: a fixed seat 1 and a locking piece 2.

As shown in fig. 1, a first through hole 111 is formed at the bottom of the fixing base 1.

As shown in fig. 1, the locking member 2 includes a lock lever 21, a first locking member 22 and a second locking member 23, the lock lever 21 is connected to the fixing base 1, the lock lever 21 abuts on the first through hole 111, and the lock lever 21 is eccentrically rotatable with respect to the fixing base 1 to switch between an unlocked state and a locked state.

As shown in fig. 1, the first locking member 22 is connected to one axial end of the lock lever 21, and the first locking member 22 is fitted to the fixing base 1 through the first through hole 111.

As shown in fig. 1, the second lock member 23 is provided in the circumferential direction of the lock lever 21.

In an unlocking state, the first locking member 22 can pass through the first through hole 111, and the second locking member 23 is spaced from the fixing base 1, so that the locking member 2 is disengaged from the fixing base 1; in the locked state, the first locking member 22 is cross-fitted with the first through hole 111, and the second locking member 23 is stopped against the inner wall of the fixing base 1, so that the fixing base 1 is locked by the locking member 2.

Example 2

A locking assembly 100, different from embodiment 1, with reference to fig. 1 and fig. 3, a locking member 2 further includes a limiting member 24, the limiting member 24 includes a hollow supporting tube 241, the supporting tube 241 is connected in the fixing base 1, a second through hole 2411 is formed at the bottom of the supporting tube 241, a locking rod 21 is embedded in the supporting tube 241, a first limiting hole 2412 is formed on a side wall of the supporting tube 241, and a second locking member 23 is swingably disposed in the first limiting hole 2412.

Example 3

A locking assembly 100, different from embodiment 2, with reference to fig. 1 and 3, a second limiting hole 2413 is formed in a side wall of an end of a support tube 241 axially away from a first limiting hole 2412, the locking element 2 further includes a shift lever 25, the shift lever 25 is connected to an end of a lock rod 21 axially away from a first locking element 22, and the shift lever 25 is swingably disposed in the second limiting hole 2413.

The extending directions of the first and second limiting holes 2412 and 2413 on the support tube 241 are the same, and the angle of rotation of the shift lever 25 in the second limiting hole 2413 is equal to the angle of rotation of the second locking member 23 in the first limiting hole 2412.

Example 4

A locking assembly 100, different from embodiment 1, with reference to fig. 1 and 7, a second locking member 23 is an elastic friction member 231, and the elastic friction member 231 protrudes from a surface of a lock rod 21.

Referring to fig. 6 and 7, the lock rod 21 is provided with a first mounting groove 211, the elastic friction member 231 is connected in the first mounting groove 211, two protrusions 2311 are formed on one side of the elastic friction member 231 away from the first mounting groove 211, the two protrusions 2311 are arranged at intervals, and the protrusions 2311 can abut against the inner wall of the fixing base 1.

Example 5

A guardrail 200, as shown in fig. 11, comprising: two locking assemblies 100, a connecting rod 220 and a guard plate 210.

The locking assembly 100 is the locking assembly 100 in embodiment 1.

As shown in fig. 12, each guard plate 210 is detachably connected to the support tube 241 of two locking assemblies 100, the guard plate 210 opens a fitting groove 2101 towards the support tube 241, the support tube 241 is clamped in the fitting groove 2101, and the support tube 241 and the fitting groove 2101 are fixed by a fastener.

Both ends of the connecting rod 220 are connected to the ends of the two support pipes 241, respectively.

Example 6

A care bed 300, as shown in fig. 13, comprising: a bed 310 and four guard rails 200.

As shown in fig. 13, the guard rail 200 is the guard rail 200 of embodiment 5, and four guard rails 200 are connected to the side of the bed 310.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be construed broadly, e.g., as being fixed or detachable or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Four guard rails 200 are shown in fig. 13 for illustrative purposes, but it will be apparent to those skilled in the art after reading the above technical solutions that the solution can be applied to two, three or more magazines, and the invention also falls within the protection scope of the present invention.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. A locking assembly, comprising:

the bottom of the fixed seat is provided with a first through hole;

a locking piece, the locking piece comprising:

the locking rod is connected to the fixing seat and abuts against the first through hole; the lock rod can eccentrically rotate relative to the fixed seat so as to be switched between an unlocking state and a locking state;

the first locking piece is connected to one axial end of the locking rod and matched on the fixed seat after penetrating through the first through hole;

the second locking piece is arranged in the circumferential direction of the lock rod;

when the lock is in the unlocking state, the first locking piece can penetrate through the first through hole, and the second locking piece and the fixed seat are arranged at intervals so that the locking piece can be disengaged from the fixed seat; when the locking state is achieved, the first locking piece is in cross fit with the first through hole, and the second locking piece abuts against the inner wall of the fixed seat, so that the fixed seat is locked by the locking piece.

2. The locking assembly according to claim 1, wherein the first through hole is a long hole, an extending direction of the first locking member is perpendicular to an extending direction of the locking rod, and a projected area of the first locking member in a horizontal plane is smaller than or equal to a projected area of the first through hole in the same horizontal plane.

3. The locking assembly according to claim 1, wherein the locking member further comprises a limiting member disposed in the fixing base, the limiting member is provided with a second through hole eccentrically disposed, and the locking rod passes through the second through hole and is rotatable relative to the limiting member.

4. The locking assembly according to claim 3, wherein the limiting member comprises a hollow supporting tube, the supporting tube is connected to the fixing base, the second through hole is formed at the bottom of the supporting tube, the locking rod is embedded in the supporting tube, a first limiting hole is formed in a side wall of the supporting tube, and the second locking member is swingably disposed in the first limiting hole.

5. The locking assembly according to claim 4, wherein a second limiting hole is formed in a side wall of the support tube at an end axially away from the first limiting hole, the locking member further comprises a shift lever connected to an end of the lock lever axially away from the first locking member, and the shift lever is swingably disposed in the second limiting hole.

6. The locking assembly of claim 5, wherein the first and second limiting holes extend in the same direction on the support tube, and the angle of rotation of the lever in the second limiting hole is equal to the angle of rotation of the second locking member in the first limiting hole.

7. The locking assembly of any one of claims 1 to 6, wherein the second locking member is a resilient friction member protruding from a surface of the lock bar.

8. The locking assembly of claim 7, wherein the locking bar has a first mounting groove, the elastic friction member is connected to the first mounting groove, a plurality of protrusions are formed on a side of the elastic friction member away from the first mounting groove, the plurality of protrusions are spaced apart from each other, and the protrusions can abut against an inner wall of the fixing base.

9. The locking assembly according to claim 4, wherein the fixing seat comprises a base and a connecting cylinder, the extending direction of the connecting cylinder is perpendicular to the plane of the base, and one end of the supporting tube extends into the connecting cylinder and contacts with the side wall of the connecting cylinder;

the base is provided with the first through hole, and the projection of the first through hole on the horizontal plane is positioned in the projection of the connecting cylinder on the same horizontal plane.

10. A guardrail, comprising:

a plurality of locking assemblies according to any one of claims 1-9;

the guard plate is connected with the locking assemblies.

11. The guardrail of claim 10, wherein each guard plate is detachably connected to the support tubes of the two locking assemblies, the guard plates are provided with matching grooves facing the support tubes, the support tubes are clamped in the matching grooves, and the support tubes and the matching grooves are fixed through fasteners.

12. The guardrail of claim 11, further comprising a connecting rod and a decorative sleeve, wherein both ends of the connecting rod are respectively connected with the ends of the two support tubes;

the decorative sleeve is coated on the circumferential direction of the supporting tube and the matching groove, so that a seam between the supporting tube and the matching groove is invisible.

13. A care bed, comprising:

a bed body;

at least one guardrail according to any one of claims 10-12 attached to a side of the bed.

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