CN113623507B - Curling curtain lifting device - Google Patents
Curling curtain lifting device Download PDFInfo
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- CN113623507B CN113623507B CN202110929449.6A CN202110929449A CN113623507B CN 113623507 B CN113623507 B CN 113623507B CN 202110929449 A CN202110929449 A CN 202110929449A CN 113623507 B CN113623507 B CN 113623507B
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- handed screw
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- screw rod
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- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
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- 230000008569 process Effects 0.000 claims description 41
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 238000004804 winding Methods 0.000 claims description 21
- 230000009471 action Effects 0.000 claims description 17
- 230000001174 ascending effect Effects 0.000 claims description 11
- 238000013459 approach Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 11
- 238000005096 rolling process Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- 230000003028 elevating effect Effects 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
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- 238000000429 assembly Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
- H05K7/06—Arrangements of circuit components or wiring on supporting structure on insulating boards, e.g. wiring harnesses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/06—Arms
- F16M2200/061—Scissors arms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/06—Arms
- F16M2200/068—Arms being part of the undercarriage
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The invention discloses a curling curtain lifting device which comprises a base plate, wherein a guide rail pair is arranged at the top of the base plate, two groups of symmetrically-arranged lifting structures are arranged at the top of the guide rail pair, each lifting structure comprises a first shaft rod assembly, a second shaft rod assembly and a connecting base, the top of the second shaft rod assembly is connected with a top connecting rod, two groups of symmetrically-arranged lifting hollow plates are arranged at the top of the base plate, a driving motor is arranged on one side of the top of the base plate, and the driving motor is positioned in front of a rotating motor. According to the invention, the coupling, the first shaft lever assembly, the second shaft lever assembly, the connecting base, the left-handed screw nut pair and the right-handed screw nut pair are arranged, so that the device can reduce pre-installation errors through adjustment, further stable transmission of left and right-handed screw rods in the device is ensured, and further stable sliding and lifting operation of the device is realized under the coordination of the connecting base, the sliding bearing seat and the pretightening force of the lifting spring.
Description
Technical Field
The invention relates to the technical field of curtain lifting devices, in particular to a curling curtain lifting device.
Background
Curtain elevating gear, the structure that goes up and down through the control curtain can be comparatively nimble realization curtain receive and release the processing, avoid the curtain to expose for a long time in the air and make the surface accumulation of curtain collect over the dust, and then make the clean and tidy nature on curtain surface receive the influence, picture when then reducing follow-up sight shadow is perceived, therefore curtain elevating gear is relevant all to have important meaning to projection, broadcast field.
The existing curtain lifting device has the following defects:
1. reference CN210954596U discloses a curtain lifting device, which includes: a curtain; a base; the winding and unwinding mechanism is used for winding and unwinding the curtain and comprises a scroll and a first driving device, the scroll is arranged on the base, the lower end of the curtain is wound on the scroll, and the first driving device is used for driving the scroll to rotate; and the scissor-fork type lifting mechanism is used for driving the curtain to lift, the lower end of the scissor-fork type lifting mechanism is installed on the base, and the upper end of the scissor-fork type lifting mechanism is connected to the upper end of the curtain. The curtain lifting device can realize the lifting of the curtain, is convenient for storing the curtain when the curtain is not used, prolongs the service life of the curtain, and can move the base to a specified position as required, but neglects the stability of the scissor-fork type lifting mechanism in the lifting process when the curtain lifting device works, so that the device has insufficient structural stability when lifted, is easy to shake and affects the overall stability of the device;
2. reference CN210954597U discloses a curtain lifting device, "comprising: a curtain; a base; the winding and unwinding mechanism comprises a scroll and a winding and unwinding driving device, the scroll is arranged on the base, the lower end of the curtain is wound on the scroll, and the winding and unwinding driving device is used for driving the scroll to rotate; and the curtain lifting mechanism comprises two folding connecting rod assemblies, each folding connecting rod assembly comprises an upper connecting rod, a lower connecting rod and a telescopic driving device, the upper end of each upper connecting rod is hinged with the upper end of the curtain, the lower end of each upper connecting rod is hinged with the upper end of each lower connecting rod, the lower end of each lower connecting rod is hinged with the base, one end of each telescopic driving device is hinged with the upper connecting rod, and the other end of each telescopic driving device is hinged with the lower connecting rod. The curtain lifting device can realize the lifting or falling of the curtain, is convenient to store the curtain when the curtain is not used, prevents the curtain from being accumulated with dust or damaged, and prolongs the service life of the curtain, adopts two original curtain lifting mechanisms to carry out lifting operation when the curtain lifting device is lifted, cannot adjust the pre-installation error of the device, and cannot ensure the consistency of the lifting heights of the two groups of lifting mechanisms;
3. contrast document CN206776400U discloses a curtain operating system, "including the batching pipe, the curtain is convoluteed on the batching pipe, the curtain upper end is fixed on the curtain hanging pipe, be connected with the wire rope that a plurality of roots lifted by crane on the curtain hanging pipe, the wire rope upper end is connected on the bobbin, the system is provided with the film rolling ware, the film rolling ware drive the bobbin and batching pipe synchronous revolution, pull up the curtain or put down, the batching pipe can reciprocate, along with the change of curtain roll diameter on the batching pipe, batching pipe self-adaptation lift adjustment. The utility model eliminates the unbalanced pulling force in the curtain lifting process, avoids the defects of curtain damage or uneven curtain lifting, and has poor stability when the lifting structure of the curtain is lifted to the top due to the lack of a corresponding balance structure;
4. reference CN208626629U discloses an electric rolling curtain lifting device, "comprising: including drive arrangement B, be connected with pivot A and pivot B on the drive arrangement B, the below of pivot A and pivot B is provided with last spool B, install reel A on the pivot A, install reel B on the pivot B, the winding has steel wire line A on the reel A, the winding has steel wire line B on the reel B, fixing device is installed respectively to the left and right sides of going up spool B, be connected with steel wire line C and steel wire line D on the fixing device respectively, be fixed with curtain B on going up spool B, the below of going up spool B is provided with down spool B, the other end of steel wire line A, steel wire line B, steel wire line C, steel wire line D, curtain B is all fixed on down spool B. The utility model discloses a purpose is that the curtain life-span in rolling up the curtain to traditional electricity is short, the lower spool easily pounces and falls and the curtain side easily rolls up the scheduling problem and improve ", and this curtain elevating gear adopts the support mounting to hang and goes up and down, and the whole volume of accomodating that leads to the device is great, and the framework is comparatively loose and equipment size is great when not using, influences accomodating of device.
Disclosure of Invention
The present invention is directed to a lifting device for a rolling curtain to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a curling curtain lifting device comprises a base plate, wherein a guide rail pair is installed at the top of the base plate, two groups of symmetrically arranged lifting structures are installed at the top of the guide rail pair, each lifting structure comprises a first shaft rod assembly, a second shaft rod assembly and a connecting base, the two groups of symmetrically arranged connecting bases are installed at the top of the guide rail pair, the second shaft rod assembly is installed inside the connecting base through a shaft, the first shaft rod assembly is connected inside the second shaft rod assembly through a shaft, and the top of the second shaft rod assembly is connected with a top connecting rod;
the hollow core slab of two sets of symmetrical arrangement's lift is installed at the top of base plate, and two sets of hollow core slabs of lift are located two sets of elevation structure's both sides respectively, one side surface mounting that elevation structure was kept away from to the hollow core slab that goes up and down has the diaphragm, the opposite side surface mounting of the hollow core slab that goes up and down has the lifting guide vice, the vice inside slidable mounting of lifting guide has the lift connecting plate, the back connection of lift connecting plate has the lifter plate.
Preferably, two sets of axle supporting seats are all installed at the top of base plate and the vice top of guide rail, and wherein two sets of axle supporting seats at base plate top are located respectively and connect the vice centre of base and levogyration screw-nut and connect the vice centre of base and dextrorotation screw-nut, two sets of axle supporting seats at the vice top of guide rail are located the both sides of shaft coupling, the vice top of guide rail is installed the vice and dextrorotation screw-nut of levogyration screw-nut and is vice, and dextrorotation screw-nut is vice and the vice symmetrical arrangement of levogyration screw-nut, the vice centre that is located two sets of elevation structure and hollow plate of going up and down of dextrorotation screw-nut respectively of levogyration screw-nut is vice, and is two sets of the tail end of No. two axostylus axostyle subassemblies is connected through axle piece and the vice and dextrorotation screw-nut of levogyration screw-nut respectively.
Preferably, the vice inside through connection of levogyration screw-nut has the levogyration lead screw body, the vice inside through connection of dextrorotation screw-nut has the dextrorotation lead screw body, the vice top sliding connection of guide rail has two sets of parallel arrangement's sliding bearing seat, the tail end of the levogyration lead screw body and the dextrorotation lead screw body runs through the inside of two sets of sliding bearing seats respectively, the trailing end connection of the levogyration lead screw body has the shaft coupling, and the one end of shaft coupling and the trailing end connection of the dextrorotation lead screw body, the levogyration lead screw body and the dextrorotation lead screw body all with sliding bearing seat screw thread sliding connection.
Preferably, the lifting hollow plate is internally provided with a lifting spring, the tail end of the lifting spring is connected with a lifting steel wire rope, the lifting guide rail pair is internally provided with a guide rail sliding block, and the top of the guide rail sliding block is connected with the bottom of the lifting connecting plate.
Preferably, the bottom of top connecting rod is installed the lift draw-in groove, and the notch size of lift draw-in groove and the cross-sectional dimension phase-match of lift connecting plate, two sets of symmetrical arrangement's pulley is installed to the bottom of top connecting rod, and the pulley is located the centre of lift draw-in groove.
Preferably, one side surface mounting that elevation structure was kept away from to the hollow core plate that goes up and down has the rotating electrical machines, and the rotating electrical machines is located the below of diaphragm, the output of rotating electrical machines is connected with the triangle conveyer belt, the winding wheel is installed to the opposite side inner wall of the hollow core plate that goes up and down, the internally mounted of winding wheel has the round bar, the one end of round bar runs through the surface of the hollow core plate that goes up and down and is connected with the triangle conveyer belt.
Preferably, driving motor is installed to top one side of base plate, and driving motor is located the place ahead of rotating electrical machines, driving motor is servo motor, driving motor's output is connected with the one end of the body of the left-handed screw rod.
Preferably, a lifting guide wheel is installed on the inner top wall of the transverse plate, a second lifting guide wheel is installed on the inner wall of one side, close to the lifting hollow plate, of the transverse plate, the first lifting guide wheel and the second lifting guide wheel form a vertical structure, and one end of the lifting steel wire rope penetrates through the first lifting guide wheel, the second lifting guide wheel and the surface of the guide rail sliding block to be connected with the surface of the pulley.
Preferably, the rod bodies of the left-handed screw rod body and the right-handed screw rod body respectively penetrate through the insides of the two groups of connecting bases, and the connecting positions of the connecting bases and the second shaft rod assembly are higher than the penetrating heights of the left-handed screw rod body and the right-handed screw rod body.
Preferably, the working steps of the device are as follows:
s1, before the lifting operation of the curled curtain is carried out by using the device, the tail ends of the left-handed screw rod body and the right-handed screw rod body can respectively penetrate through the insides of the two groups of sliding bearing seats to be connected with the coupler, and under the characteristic of the movability of the coupler, the left-handed screw rod body and the right-handed screw rod body can be timely adjusted when the left-handed screw rod body and the right-handed screw rod body are uneven in left and right due to processing errors, so that the left-handed screw rod body and the right-handed screw rod body can be smoothly rotated under the driving of the driving motor, and the subsequent lifting operation can be conveniently carried out;
s2, when ascending operation is carried out, the driving motor can be started to enable the driving motor to rotate in the forward direction to drive the left-handed screw rod to rotate, and then the right-handed screw rod is driven to rotate under the action of the coupler, at the moment, the left-handed screw rod nut pair and the right-handed screw rod nut pair can be driven to move towards the direction of the lifting hollow plate respectively, the left-handed screw rod nut pair and the right-handed screw rod nut pair move away from each other in the opposite direction, and then the first shaft rod assembly and the second shaft rod assembly contract and approach each other under the action of the shaft, so that the first shaft rod assembly and the second shaft rod assembly realize the top lifting action, and meanwhile, the top connecting plate at the top end of the second shaft rod assembly moves upwards synchronously;
s3, in the process, the lifting spring is under the action of the pre-tightening force of the spring, the lifting plate rises upwards according to the direction of the lifting guide rail pair, the lifting spring is influenced by the pre-tightening force of the spring to stretch, deform and elongate, when the guide rail slider moves upwards to the top end of the lifting guide rail pair along the inner wall of the lifting guide rail pair, the guide rail slider cannot move upwards continuously, and meanwhile, the lifting connecting plate and the lifting plate stop rising;
s4, in the lifting process, the guide rail pair is combined with the left-handed screw nut pair and the right-handed screw nut pair, so that the second shaft lever assembly is kept stable in the lifting process, and the first shaft lever assembly is kept stable in the lifting process by the matching of the connecting base and the base plate, and further the lifting process is stable and does not shake;
s5, when the device is descended, the driving motor can be started to rotate reversely and synchronously start the rotating motor, so that the left-handed screw rod body and the right-handed screw rod body rotate reversely, the sliding bearing seats on the surfaces of the left-handed screw rod body and the right-handed screw rod body can respectively approach the coupler, the left-handed screw rod body and the right-handed screw rod body are relatively close to each other at the moment, the second shaft rod assembly and the first shaft rod assembly can be driven to be far away from each other at the moment, the top connecting rod is driven to descend, and the descending purpose is achieved;
s6, along with the descending of the top connecting rod, the lifting clamping groove at the bottom of the top connecting rod is gradually close to and clamped with the top end of the lifting connecting plate, along with the descending of the top connecting rod, the lifting connecting plate clamped and connected through the lifting clamping groove drives the lifting plate to descend, until the guide rail slide block descends to the bottom end of the lifting guide rail pair, the guide rail slide block stops moving downwards, the raw and quiet connecting plate, the lifting plate and the top connecting rod stop sliding downwards at the moment, the driving motor is turned off at the moment, the contraction of the left-handed screw rod body and the right-handed screw rod body can be stopped, the descending process is finished, the closed state of the device is compact in structure, the whole size is lower, and the volume of the device is reduced;
s7, in the process, the rotating motor drives the lifting steel wire rope to perform winding operation, the winding and the taking-up processing of the lifting steel wire rope are realized, and the lifting spring loses the function of the pull rope and then shortens and recovers to the original length.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the first shaft lever component, the second shaft lever component, the connecting base, the left-handed screw nut pair and the right-handed screw nut pair are arranged, and the first shaft lever component and the second shaft lever component can have a stable fulcrum in the lifting movement process through the matching of the connecting base and the first shaft lever component, so that the second shaft lever component can form a movable triangular sliding structure under the matching of the left-handed screw nut pair and the right-handed screw nut pair, and the stability of the device is further kept during the lifting operation.
2. According to the invention, the shaft coupler, the left-handed screw rod body and the right-handed screw rod body are arranged, and the error difference between the pre-installed left-handed screw rod body and the pre-installed right-handed screw rod body can be adjusted through the shaft coupler, so that the left-handed screw rod body can drive the right-handed screw rod body to synchronously rotate under the transmission of the shaft coupler, and the consistency of the lifting heights of the two groups of lifting structures in the device is further ensured.
3. According to the lifting device, the lifting spring, the lifting hollow plate and the lifting steel wire rope are arranged, when the lifting device is lifted, the tension force can be generated on the lifting steel wire rope in a tightened state through the pretightening force of the lifting spring, so that a downward acting force is generated on the top connecting rod lifted by the second shaft lever assembly, the lifting acting force provided by the second shaft lever assembly is weakened, the stability of the lifting device when the lifting device is lifted to the top end is ensured, the necessity of additionally arranging a set of control mechanism is reduced, and the cost is saved.
4. According to the invention, by installing the top connecting rod, the lifting plate, the lifting connecting plate and the lifting guide rail pair, when the device descends, the lifting clamping groove can be embedded with the lifting connecting plate along with the downward movement of the top connecting rod, so that the lifting connecting plate and the lifting plate are driven to move downward along the inner wall of the lifting guide rail pair, and the height of the closed device is reduced accordingly, so that the device is more compact in a closed state and convenient to store.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the entire closed state of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of the base plate, drive and rotary motors and cross plate mounting structure of the present invention;
FIG. 5 is a schematic diagram of a raised front structure of the present invention;
FIG. 6 is a schematic view of the construction of the hollow riser blocks, riser springs and riser cables of the present invention;
FIG. 7 is a schematic front view of the closed state of the present invention;
FIG. 8 is a schematic view of the structure at point A of the present invention;
FIG. 9 is a schematic view of the structure at B in the present invention.
In the figure: 1. a base plate; 2. a guide rail pair; 3. a left-handed screw nut pair; 301. a shaft support seat; 302. A left-handed screw rod body; 303. a right-handed screw nut pair; 304. rotating the lead screw body rightwards; 305. a sliding bearing seat; 306. a coupling; 4. a drive motor; 5. a lifting plate; 6. a lifting structure; 601. a first shaft assembly; 602. a second shaft assembly; 603. connecting a base; 7. a top connecting rod; 701. a lifting clamping groove; 702. a pulley; 8. lifting the connecting plate; 9. lifting the hollow slab; 901. lifting the steel wire rope; 902. a lift spring; 903. a lifting guide rail pair; 10. a transverse plate; 1001. a first lifting guide wheel; 1002. a second lifting guide wheel; 11. a rotating electric machine.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1, fig. 2, fig. 7 and fig. 8, an embodiment of the present invention: a curling curtain lifting device comprises a base plate 1, a guide rail pair 2 is installed at the top of the base plate 1, two groups of symmetrically arranged lifting structures 6 are installed at the top of the guide rail pair 2, each lifting structure 6 comprises a first shaft rod component 601, a second shaft rod component 602 and a connecting base 603, two groups of symmetrically arranged connecting bases 603 are installed at the top of the guide rail pair 2, the second shaft rod component 602 is installed inside the connecting base 603 through a shaft, the first shaft rod component 601 is connected inside the second shaft rod component 602 through a shaft, a left-handed screw nut pair 3 and a right-handed screw nut pair 303 are installed at the top of the guide rail pair 2, the right-handed screw nut pair 303 and the left-handed screw nut pair 3 are symmetrically arranged, the left-handed screw nut pair 3 and the right-handed screw nut pair 303 are respectively positioned between the two groups of lifting structures 6 and the lifting hollow plate 9, and the tail ends of the two groups of second shaft rod assemblies 602 are respectively connected with the left-handed screw nut pair 3 and the right-handed screw nut pair 303 through shafts;
specifically, the guide rail pair 2 installed through the base plate 1 can provide a stable supporting function for the corresponding lifting operation of the device, in addition, because the connecting base 603 is in non-sliding connection with the base plate 1, when the first shaft lever assembly 601 and the second shaft lever assembly 602 perform relative approaching and deviating motion, a stable supporting base point can be provided, in addition, when the left-handed screw nut pair 3 and the right-handed screw nut pair 303 slide along the surfaces of the left-handed screw rod body 302 and the right-handed screw rod body 304, a triangular structure with stable pivot points can be formed, further, when the first shaft lever assembly 601 and the second shaft lever assembly 602 perform lifting operation, the lifting process can be ensured to be stable and not to shake, further, the device can ensure higher structural stability in the lifting process, in addition, when the first shaft lever assembly 601 and the second shaft lever assembly 602 are lowered and stored, the first shaft lever assembly 601 and the second shaft lever assembly 602 can be folded and stored under the action of the inner shaft member, so as to reduce the overall accommodating space of the device.
Example two
Referring to fig. 5, an embodiment of the present invention: a curling curtain lifting device comprises a coupler 306, two sets of shaft supporting seats 301 are respectively installed at the top of a base plate 1 and the top of a guide rail pair 2, wherein two sets of shaft supporting seats 301 at the top of the base plate 1 are respectively positioned in the middle of a connecting base 603 and a left-handed screw nut pair 3 and in the middle of the connecting base 603 and a right-handed screw nut pair 303, two sets of shaft supporting seats 301 at the top of the guide rail pair 2 are positioned at two sides of the coupler 306, a left-handed screw rod body 302 is connected in the left-handed screw nut pair 3 in a penetrating manner, a right-handed screw rod body 304 is connected in the right-handed screw nut pair 303 in a penetrating manner, two sets of sliding bearing seats 305 which are arranged in parallel are connected at the top of the guide rail pair 2 in a sliding manner, the tail ends of the left-handed screw rod body 302 and the right-handed screw rod body 304 respectively penetrate through the insides of the two sets of the sliding bearing seats 305, the tail end of the left-handed screw rod body 302 is connected with the coupler 306, and one end of the coupler 306 is connected with the tail end of the right-handed screw rod body 304, the left-handed screw rod body 302 and the right-handed screw rod body 304 are both in threaded sliding connection with the sliding bearing seat 305.
The rod bodies of the left-handed screw rod body 302 and the right-handed screw rod body 304 respectively penetrate through the insides of the two groups of connecting bases 603, and the connecting positions of the connecting bases 603 and the second shaft rod assembly 602 are higher than the penetrating heights of the left-handed screw rod body 302 and the right-handed screw rod body 304.
Specifically, because the connection mode between the shaft support seat 301 and the base plate 1 and the guide rail pair 2 is non-sliding connection, the stability of the left-handed screw rod body 302 and the right-handed screw rod body 304 during rotation can be ensured, and two sets of sliding structures which are symmetrical to each other are further formed, so that the two sets of sliding bearing seats 305 can stably move along the rod bodies along with the rotation of the left-handed screw rod body 302 and the right-handed screw rod body 304, and further the second shaft lever assembly 602 can realize the movement displacement in the corresponding direction, in addition, the tail ends of the left-handed screw rod body 302 and the right-handed screw rod body 304 are respectively connected through the coupler 306, so that the left-handed screw rod body 302 can synchronously drive the right-handed screw rod body 304 to rotate during rotation, and further the left-handed screw rod body 302 and the right-handed screw rod body 304 are driven to rotate together, in addition, the installation of the coupler 306 can also accurately adjust the left and right positions, and ensure the length of the left-handed screw rod body 302 and the right-handed screw rod body 304 to be consistent, rising difference that the rising height nonconformity of two sets of No. two axostylus axostyle subassemblies 602 brought when avoiding follow-up slip, in addition still can avoid machining error to lead to controlling the height not smooth problem, guarantee that levogyration lead screw body 302 and dextrorotation lead screw body 304 can the synchronous and stable rotation, in addition, top connecting rod 7 and lift connecting plate 8 zonulae occludens when the device is closed, make the device form link structure, make the device close state compact structure, equipment size volume is all comparatively small and exquisite, be convenient for accomodate.
EXAMPLE III
Referring to fig. 3, fig. 4 and fig. 6, an embodiment of the present invention: the utility model provides a curling curtain elevating gear, including hollow slab 9 that goes up and down, two sets of symmetrical arrangement's hollow slab 9 that goes up and down is installed at the top of base plate 1, and two sets of hollow slab 9 that goes up and down are located two sets of elevation structure 6's both sides respectively, the internally mounted of hollow slab 9 that goes up and down has lift spring 902, the trailing end connection of lift spring 902 has lift wire rope 901, the internally mounted of the vice 903 of lift guide rail has the guide rail slider, and the top of guide rail slider is connected with lift connecting plate 8's bottom, the opposite side surface mounting of the hollow slab 9 that goes up and down has the vice 903 of lift guide rail, the inside slidable mounting of the vice 903 of lift guide rail has lift connecting plate 8, the back connection of lift connecting plate 8 has lifter plate 5.
One side surface mounting that elevation hollow plate 9 kept away from elevation structure 6 has rotating electrical machines 11, and rotating electrical machines 11 is located the below of diaphragm 10, and rotating electrical machines 11's output is connected with the triangle conveyer belt, and the winding wheel is installed to the opposite side inner wall of elevation hollow plate 9, and the internally mounted of winding wheel has the round bar, and the one end of round bar runs through the surface of elevation hollow plate 9 and is connected with the triangle conveyer belt.
Specifically, the surface of the winding wheel is wound around the surface of the lifting steel wire rope 901, so that in the lifting process, along with the lifting of the second shaft rod assembly 602, the top connecting rod 7 is driven to move upwards, the lifting steel wire rope 901 wound around the surface of the winding wheel can be unwound, then along with the upward movement of the top connecting rod 7, the lifting steel wire rope 901 on the surface of the pulley 702 is tightened, further the lifting spring 902 is stretched, the limitation is caused by the maximum elasticity of the lifting spring 902, the top connecting rod 7 is subjected to downward resistance in the lifting process, further the stability of the top connecting rod 7 can be ensured when the top connecting rod 7 is lifted to the top end, and the curtain is ensured to be at a stable lifting height;
in the descending process, the rotating motor 11 is started to roll up the lifting steel wire rope 901, then the lifting steel wire rope 901 connected with the lifting spring 902 is not in a tight state any more, so that the stretching effect on the lifting spring 902 is lost, the lifting spring 902 is shortened and deformed under the elastic effect, in the process, the rotating motor 11 drives the triangular conveyor belt to rotate, so that the loosened lifting steel wire rope 901 is rolled up, at the moment, the driving motor 4 is rotated reversely, the second shaft rod component 602 and the first shaft rod component 601 can be driven to be away from each other, so that the top connecting rod 7 is driven to descend, in the process, the lifting clamping groove 701 is clamped with the top of the lifting connecting plate 8 and then downward pressure is applied to the lifting connecting plate 8, so that the lifting connecting plate 8 slides downwards along the inner wall of the lifting guide rail pair 903 until the guide rail slide block moves downwards to the bottom end of the lifting guide rail pair 903, at the moment, the driving motor 4 and the rotating motor 11 are closed, and then stop the downward movement of shaft assembly number two 602.
Example four
Referring to fig. 1 and 9, an embodiment of the present invention: the utility model provides a curly curtain elevating gear, includes top connecting rod 7, and the top of No. two axostylus axostyle subassemblies 602 is connected with top connecting rod 7, and lift draw-in groove 701 is installed to the bottom of top connecting rod 7, and the notch size of lift draw-in groove 701 and the cross-sectional dimension phase-match of lift connecting plate 8, and two sets of symmetrical arrangement's pulley 702 is installed to the bottom of top connecting rod 7, and pulley 702 is located the centre of lift draw-in groove 701.
The surface of one side of the lifting hollow plate 9 far away from the lifting structure 6 is provided with a transverse plate 10, the inner top wall of the transverse plate 10 is provided with a first lifting guide wheel 1001, the inner wall of one side of the transverse plate 10 close to the lifting hollow plate 9 is provided with a second lifting guide wheel 1002, the first lifting guide wheel 1001 and the second lifting guide wheel 1002 form a vertical structure, and one end of a lifting steel wire rope 901 penetrates through the first lifting guide wheel 1001 and the second lifting guide wheel 1002 respectively, and the surfaces of the guide rail sliding blocks are connected with the surfaces of the pulleys 702.
Specifically, the first lifting guide wheel 1001 and the second lifting guide wheel 1002 can keep the lifting steel wire rope 901 in a tensioning state in the traction process, so that the lifting steel wire rope 901 is prevented from being curled and contracted, and the smooth loading and lifting process is ensured;
the arrangement of the pulley 702 can connect the lifting steel wire rope 901 with the top connecting rod 7, so that when the top connecting rod 7 rises, downward resistance can be applied to the top connecting rod 7 through the elastic action of the lifting spring 902 and the transmission action of the lifting steel wire rope 901, further the top connecting rod 7 is reduced when being subjected to an upward acting force applied by the second shaft rod assembly 602, and the stability of the top connecting rod 7 when rising to the top end is further enhanced;
in addition, the lifting structure 6 and the lifting plate 5 realize indirect linkage design through the top connecting rod 7, so that the lifting plate 5 and the lifting connecting plate 8 do not need to be additionally provided with a set of control mechanism, the cost is saved, and the overall stability of the device in storage is ensured.
Driving motor 4 is installed to top one side of base plate 1, and driving motor 4 is located the place ahead of rotating electrical machines 11, and driving motor 4 is servo motor, and driving motor 4's output is connected with the one end of the levogyration lead screw body 302.
Specifically, because servo motor can realize corotation and reversal, consequently through driving motor 4's corotation, can change the vice 3 of levogyration screw-nut and the vice 303 of dextrorotation screw-nut along the rotatory direction in levogyration screw rod body 302 and the dextrorotation screw rod body 304 body of rod surface, and then realize corresponding lift and change, and rotating electrical machines 11 is through rotating, can drive the triangle conveyer belt and rotate, realizes the rolling arrangement of lift wire rope 901 then.
The working steps of the device are as follows:
s1, before the lifting operation of the curling curtain is performed by using the device, the tail ends of the left-handed screw rod body 302 and the right-handed screw rod body 304 respectively pass through the insides of the two sets of sliding bearing seats 305 to be connected with the coupler 306, and under the characteristic of the movability of the coupler 306, the left-handed screw rod body 302 and the right-handed screw rod body 304 can be adjusted in time when the left-handed screw rod body 302 and the right-handed screw rod body 304 are uneven left and right due to processing errors, so that the left-handed screw rod body 302 and the right-handed screw rod body 304 can be smoothly rotated under the driving of the driving motor 4, and the subsequent lifting operation can be performed;
s2, when ascending operation is carried out, the driving motor 4 can be started to rotate in the forward direction to drive the left-handed screw rod body 302 to rotate, and then the right-handed screw rod body 304 is driven to rotate under the action of the coupler 306, and at the moment, the left-handed screw nut pair 3 and the right-handed screw nut pair 303 can be driven to move towards the direction of the lifting hollow plate 9 respectively, the left-handed screw nut pair 3 and the right-handed screw nut pair 303 move away from each other, so that the first shaft rod component 601 and the second shaft rod component 602 contract and approach each other under the action of a shaft part, so that the first shaft rod component 601 and the second shaft rod component 602 realize the top lifting effect, and meanwhile, the top connecting rod 7 at the top end of the second shaft rod component 602 moves upwards synchronously;
s3, in the process, the lifting spring 902 is under the action of the spring pre-tightening force, the lifting plate 5 rises upwards according to the direction of the lifting guide rail pair 903, the lifting spring 902 is influenced by the spring pre-tightening force to be stretched, deformed and lengthened, when the guide rail slide block moves upwards to the top end of the lifting guide rail pair 903 along the inner wall of the lifting guide rail pair 903, the guide rail slide block cannot move upwards continuously, and meanwhile, the lifting connecting plate 8 and the lifting plate 5 stop rising;
s4, in the ascending process, the guide rail pair 2 is combined with the left-handed screw nut pair 3 and the right-handed screw nut pair 303, so that the second shaft rod assembly 602 is kept stable in the ascending process, and the first shaft rod assembly 601 is kept stable in the ascending process by matching the connecting base 603 with the base plate 1, and further the ascending process is stable and does not shake;
s5, when the device is descending, the driving motor 4 is started to rotate reversely and synchronously start the rotating motor 11, so that the left-handed screw rod 302 and the right-handed screw rod 304 rotate reversely, the sliding bearing seats 305 on the surfaces of the left-handed screw rod 302 and the right-handed screw rod 304 can respectively approach the coupling 306, and the two are relatively close to each other, so that the second shaft rod assembly 602 and the first shaft rod assembly 601 are driven to move away from each other, the top connecting rod 7 is driven to descend, and the descending purpose is achieved;
s6, along with the descending of the top connecting rod 7, the lifting clamping groove 701 at the bottom of the top connecting rod gradually approaches to and is clamped with the top end of the lifting connecting plate 8, along with the descending of the top connecting rod 7, the lifting connecting plate 8 clamped and connected through the lifting clamping groove 701 drives the lifting plate 5 to descend until the guide rail slide block descends to the bottom end of the lifting guide rail pair 903, the guide rail slide block stops moving downwards, at the moment, the lifting connecting plate 8, the lifting plate 5 and the top connecting rod 7 stop sliding downwards, at the moment, the driving motor 4 is turned off, the contraction of the left-handed screw rod body 302 and the right-handed screw rod body 304 can be stopped, the descending process is finished, the device is compact in closed state structure, the whole size is lower, and the size of equipment is reduced;
s7, in this process, the rotating electrical machine 11 drives the lifting steel wire rope 901 to perform a winding operation, so as to realize the winding and taking-up process of the lifting steel wire rope 901, and the lifting spring 902 loses the function of the pulling rope and then shortens and recovers to the original length.
The working principle is as follows: when the lifting operation is performed, the driving motor 4 can be started to rotate forward to drive the left-handed screw rod body 302 to rotate, and then the right-handed screw rod body 304 is driven to rotate under the action of the coupler 306, at the moment, the left-handed screw nut pair 3 and the right-handed screw nut pair 303 can be driven to move towards the lifting hollow plate 9 respectively, the left-handed screw nut pair 3 and the right-handed screw nut pair 303 move away from each other, and then the first shaft rod assembly 601 and the second shaft rod assembly 602 contract and approach each other under the action of the shaft element, so that the first shaft rod assembly 601 and the second shaft rod assembly 602 realize the top lifting action, and meanwhile, the top connecting rod 7 at the top end of the second shaft rod assembly 602 synchronously moves upwards, in the process, the lifting spring 902 is under the action of the spring pre-tightening force, the lifting plate 5 upwards rises up according to the direction of the lifting guide rail pair 903, and the lifting spring is influenced by the spring pre-tightening force to generate tensile deformation and elongation, when the guide rail slide block moves upwards to the top end of the lifting guide rail pair 903 along the inner wall of the lifting guide rail pair 903, the guide rail slide block cannot move upwards continuously, meanwhile, the lifting connecting plate 8 and the lifting plate 5 stop lifting, in the lifting process, the guide rail pair 2 is combined with the left-handed screw nut pair 3 and the right-handed screw nut pair 303, so that the second shaft rod assembly 602 is kept stable in the lifting process, the connection base 603 is matched with the base plate 1, the first shaft rod assembly 601 is kept stable in the lifting process, and the lifting process is further guaranteed to be stable and not to shake;
when the device is descending, the driving motor 4 can be started to rotate reversely and synchronously start the rotating motor 11, so that the left-handed screw rod body 302 and the right-handed screw rod body 304 rotate reversely, the sliding bearing seats 305 on the surfaces of the left-handed screw rod body 302 and the right-handed screw rod body 304 can respectively approach the coupler 306, the left-handed screw rod body 302 and the right-handed screw rod body 304 are relatively close to and furled in at the moment, the rod bodies of the second shaft rod component 602 and the first shaft rod component 601 can be driven to be away from each other at the moment, the top connecting rod 7 is driven to descend, so that the descending purpose is realized, the lifting clamping groove 701 at the bottom of the lifting clamping plate 701 can gradually approach the top end of the lifting connecting plate 8 and be clamped with the top end of the lifting connecting plate 8 along with the descending of the top connecting rod 7, the lifting connecting plate 5 is driven to descend through the lifting clamping of the lifting clamping groove 701 until the guide rail slide block descends to the bottom end of the lifting guide rail pair 903, the guide rail slide stops moving downwards, lifting connection board 8 this moment, lifter plate 5 and top connecting rod 7 all stop the gliding, close driving motor 4 this moment, can stop the shrink of levogyration lead screw body 302 and dextrorotation lead screw body 304, the end landing process for device closed condition compact structure, overall dimension is lower, reduce the equipment volume, in this process, rotating electrical machines 11 drives lift wire rope 901 and carries out the rolling operation, realize taking in and roll-up of lift wire rope 901 and handle, lift spring 902 loses the stay cord effect and then shortens and resume to original length.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A curling curtain lifting device comprises a base plate (1), and is characterized in that: the guide rail pair (2) is installed at the top of the base plate (1), two groups of symmetrically-arranged lifting structures (6) are installed at the top of the guide rail pair (2), each lifting structure (6) comprises a first shaft rod assembly (601), a second shaft rod assembly (602) and a connecting base (603), two groups of symmetrically-arranged connecting bases (603) are installed at the top of the guide rail pair (2), the second shaft rod assembly (602) is installed inside the connecting base (603) through a shaft, the first shaft rod assembly (601) is connected inside the second shaft rod assembly (602) through a shaft, and a top connecting rod (7) is connected to the top of the second shaft rod assembly (602);
the lifting hollow plates (9) are symmetrically arranged at the top of the base plate (1), the two groups of lifting hollow plates (9) are respectively positioned at two sides of the two groups of lifting structures (6), a transverse plate (10) is arranged on the surface of one side, far away from the lifting structures (6), of each lifting hollow plate (9), a lifting guide rail pair (903) is arranged on the surface of the other side of each lifting hollow plate (9), a lifting connecting plate (8) is slidably arranged in each lifting guide rail pair (903), and the lifting plates (5) are connected to the back of each lifting connecting plate (8);
a lifting spring (902) is arranged in the lifting hollow plate (9), the tail end of the lifting spring (902) is connected with a lifting steel wire rope (901), a guide rail sliding block is arranged in the lifting guide rail pair (903), and the top of the guide rail sliding block is connected with the bottom of the lifting connecting plate (8);
lifting clamping grooves (701) are installed at the bottom of the top connecting rod (7), the size of a groove opening of each lifting clamping groove (701) is matched with the size of the cross section of the corresponding lifting connecting plate (8), two sets of symmetrically-arranged pulleys (702) are installed at the bottom of the top connecting rod (7), and the pulleys (702) are located in the middle of the lifting clamping grooves (701).
2. A crimped curtain lifting device according to claim 1, wherein: two sets of axle supporting seats (301) are all installed at the top of base plate (1) and the top of guide rail pair (2), wherein two sets of axle supporting seats (301) at the top of base plate (1) are respectively located the middle of connecting base (603) and levogyration screw nut pair (3) and the middle of connecting base (603) and dextrorotation screw nut pair (303), two sets of axle supporting seats (301) at the top of guide rail pair (2) are located the both sides of shaft coupling (306), levogyration screw nut pair (3) and dextrorotation screw nut pair (303) are installed at the top of guide rail pair (2), and dextrorotation screw nut pair (303) and levogyration screw nut pair (3) symmetrical arrangement, levogyration screw nut pair (3) and dextrorotation screw nut pair (303) are respectively located the middle of two sets of elevation structure (6) and hollow lift slab (9), and are two sets of the tail end of No. two shaft lever subassembly (602) is respectively through axle spare and levogyration screw nut pair (3) and dextrorotation screw nut pair (9) 303) And (4) connecting.
3. A crimped curtain lifting device according to claim 2, wherein: the inside through connection of the vice (3) of levogyration screw-nut has the levogyration body of silk (302), the inside through connection of the vice (303) of dextrorotation screw-nut has the dextrorotation body of silk (304), the top sliding connection of the vice (2) of guide rail has sliding bearing seat (305) of two sets of parallel arrangement, the inside of two sets of sliding bearing seat (305) is run through respectively to the tail end of the levogyration body of silk (302) and the dextrorotation body of silk (304), the trailing end connection of the levogyration body of silk (302) has shaft coupling (306), and the one end of shaft coupling (306) and the trailing end connection of the dextrorotation body of silk (304), the levogyration body of silk (302) and the dextrorotation body of silk (304) all with sliding bearing seat (305) screw thread sliding connection.
4. A crimped curtain lifting device according to claim 1, wherein: one side surface mounting that elevation structure (6) was kept away from in lift hollow core board (9) has rotating electrical machines (11), and rotating electrical machines (11) are located the below of diaphragm (10), the output of rotating electrical machines (11) is connected with the triangle conveyer belt, the winding wheel is installed to the opposite side inner wall of lift hollow core board (9), the internally mounted of winding wheel has the round bar, the surface that the one end of round bar runs through lift hollow core board (9) is connected with the triangle conveyer belt.
5. A crimped curtain lifting device according to claim 1, wherein: driving motor (4) are installed to top one side of base plate (1), and driving motor (4) are located the place ahead of rotating electrical machines (11), driving motor (4) are servo motor, the output of driving motor (4) is connected with the one end of the levogyration lead screw body (302).
6. A crimped curtain lifting device according to claim 1, wherein: a first lifting guide wheel (1001) is installed on the inner top wall of the transverse plate (10), a second lifting guide wheel (1002) is installed on the inner wall of one side, close to the lifting hollow plate (9), of the transverse plate (10), the first lifting guide wheel (1001) and the second lifting guide wheel (1002) form a vertical structure, and one end of the lifting steel wire rope (901) penetrates through the first lifting guide wheel (1001) and the second lifting guide wheel (1002) respectively, and the surfaces of the guide rail sliding blocks are connected with the surfaces of the pulleys (702).
7. A crimped curtain lifting device according to claim 3, wherein: the body of rod of the body of rod (302) of levogyration silk body of rod and dextrorotation silk body of rod (304) runs through the inside of two sets of connection bases (603) respectively, the hookup location of connecting base (603) and No. two axostylus axostyle subassemblies (602) is higher than the through-going height of the body of rod of levogyration silk body of rod (302) and dextrorotation silk body of rod (304).
8. A crimped curtain lifting device according to any one of claims 1 to 7, wherein the device is operated as follows:
s1, before the lifting operation of the curling curtain is carried out by using the device, the tail ends of the left-handed screw rod body (302) and the right-handed screw rod body (304) can respectively penetrate through the insides of the two groups of sliding bearing seats (305) to be connected with the coupler (306), and under the characteristic of the mobility of the coupler (306), the left-handed screw rod body (302) and the right-handed screw rod body (304) can be timely adjusted when the left-handed screw rod body and the right-handed screw rod body are uneven due to processing errors, so that the left-handed screw rod body (302) and the right-handed screw rod body (304) can be smoothly rotated under the driving of the driving motor (4), and the subsequent lifting operation can be conveniently carried out;
s2, when ascending operation is carried out, the driving motor (4) can be started to rotate in the forward direction to drive the left-handed screw rod body (302) to rotate, the right-handed screw rod body (304) is driven to rotate under the action of the coupler (306), the left-handed screw rod nut pair (3) and the right-handed screw rod nut pair (303) can be driven to move towards the direction of lifting the hollow plate (9) respectively at the moment, the left-handed screw rod nut pair (3) and the right-handed screw rod nut pair (303) move oppositely and oppositely away, and the first shaft rod assembly (601) and the second shaft rod assembly (602) are enabled to contract and approach each other under the action of the shaft element, so that the first shaft rod assembly (601) and the second shaft rod assembly (602) realize the top lifting effect, and meanwhile, the top connecting rod (7) at the top end of the second shaft rod assembly (602) moves upwards synchronously;
s3, in the process, under the action of the spring pre-tightening force, the lifting spring (902) lifts the lifting plate (5) upwards according to the direction of the lifting guide rail pair (903), the lifting spring (902) is influenced by the spring pre-tightening force to be stretched, deformed and lengthened, when the guide rail slider moves upwards to the top end of the lifting guide rail pair (903) along the inner wall of the lifting guide rail pair (903), the guide rail slider cannot move upwards continuously, and meanwhile, the lifting connecting plate (8) and the lifting plate (5) stop lifting;
s4, in the ascending process, the guide rail pair (2) is combined with the left-handed screw nut pair (3) and the right-handed screw nut pair (303) to enable the second shaft lever assembly (602) to be stable in the ascending process, and the first shaft lever assembly (601) is stable in the ascending process by matching the connecting base (603) with the base plate (1), so that the ascending process is stable and does not shake;
s5, when the device is lowered, the driving motor (4) can be started to rotate reversely and synchronously start the rotating motor (11), so that the left-handed screw rod body (302) and the right-handed screw rod body (304) rotate reversely, the sliding bearing seats (305) on the surfaces of the left-handed screw rod body (302) and the right-handed screw rod body (304) can respectively approach the coupler (306), the left-handed screw rod body and the right-handed screw rod body are relatively close to each other and are folded, and the rod bodies of the second shaft rod assembly (602) and the first shaft rod assembly (601) can be driven to be away from each other to drive the top connecting rod (7) to be lowered, so that the lowering purpose is achieved;
s6, along with the descending of the top connecting rod (7), the lifting clamping groove (701) at the bottom of the lifting connecting plate (8) is gradually close to the top end of the lifting connecting plate and clamped with the top end of the lifting connecting plate, along with the descending of the top connecting rod (7), the lifting connecting plate (8) clamped and connected through the lifting clamping groove (701) drives the lifting plate (5) to descend until the guide rail slide block descends to the bottom end of the lifting guide rail pair (903), the guide rail slide block stops moving downwards, at the moment, the lifting connecting plate (8), the lifting plate (5) and the top connecting rod (7) stop sliding downwards, at the moment, the driving motor (4) is turned off, the contraction of the left-handed screw rod body (302) and the right-handed screw rod body (304) can be stopped, the descending process is finished, the device is enabled to be compact in closed state, the whole size is lower, and the size of the device is reduced;
s7, in the process, the rotating motor (11) drives the lifting steel wire rope (901) to perform winding operation, the winding and the taking-in processing of the lifting steel wire rope (901) are achieved, and the lifting spring (902) loses the rope pulling effect and then shortens and restores to the original length.
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| CN202110929449.6A CN113623507B (en) | 2021-08-13 | 2021-08-13 | Curling curtain lifting device |
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| CN202110929449.6A CN113623507B (en) | 2021-08-13 | 2021-08-13 | Curling curtain lifting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110568710A (en) * | 2019-10-08 | 2019-12-13 | 江苏舜合物联网科技有限公司 | Curtain lifting mechanism for curled hidden laser television all-in-one machine |
| CN110658673A (en) * | 2019-10-08 | 2020-01-07 | 江苏舜合物联网科技有限公司 | Curtain curling and lifting linkage structure for curling hidden type laser television all-in-one machine |
| CN111624845A (en) * | 2020-05-18 | 2020-09-04 | 青岛海信激光显示股份有限公司 | Projection screen or display screen |
| CN111948895A (en) * | 2020-09-04 | 2020-11-17 | 王月 | A projection curtain automatic start/stop structure for building teaching |
| WO2021080223A1 (en) * | 2019-10-21 | 2021-04-29 | 최중선 | Roll screen device having wrinkle prevention function |
| CN112987474A (en) * | 2019-11-29 | 2021-06-18 | 杜丙同 | Floor type electric lifting projection curtain |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162989B (en) * | 2010-02-18 | 2013-04-10 | 精工爱普生株式会社 | Screen unit |
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- 2021-08-13 CN CN202110929449.6A patent/CN113623507B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568710A (en) * | 2019-10-08 | 2019-12-13 | 江苏舜合物联网科技有限公司 | Curtain lifting mechanism for curled hidden laser television all-in-one machine |
| CN110658673A (en) * | 2019-10-08 | 2020-01-07 | 江苏舜合物联网科技有限公司 | Curtain curling and lifting linkage structure for curling hidden type laser television all-in-one machine |
| WO2021080223A1 (en) * | 2019-10-21 | 2021-04-29 | 최중선 | Roll screen device having wrinkle prevention function |
| CN112987474A (en) * | 2019-11-29 | 2021-06-18 | 杜丙同 | Floor type electric lifting projection curtain |
| CN111624845A (en) * | 2020-05-18 | 2020-09-04 | 青岛海信激光显示股份有限公司 | Projection screen or display screen |
| CN111948895A (en) * | 2020-09-04 | 2020-11-17 | 王月 | A projection curtain automatic start/stop structure for building teaching |
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