CN219708995U - Lifting mechanism - Google Patents

Abstract

The utility model relates to the technical field of automatic equipment, in particular to a lifting mechanism which comprises a mounting frame, a moving structure, a self-locking assembly and a driving assembly, wherein the mounting frame is arranged on the self-locking assembly; the self-locking assembly comprises clamping jaws and clamping reset pieces, wherein the two clamping jaws are rotationally connected and symmetrically arranged and are respectively connected to the two opposite sides of the clamping reset pieces, and the clamping reset pieces are used for driving the two clamping jaws to move towards each other and clamping and fixing the moving structure; the driving assembly is connected to the mounting frame and used for driving the moving structure to move in a direction away from the self-locking assembly so as to drive the moving structure to be separated from the clamping jaw. In the elevating system of this embodiment, through setting up auto-lock subassembly and moving structure cooperation, after moving structure and auto-lock subassembly's clamping jaw contact, can lock moving structure's high position, avoid the drive assembly outage to move moving structure and appear falling the phenomenon, moving structure also can realize the unblock function under drive assembly's drive simultaneously, elevating system's safety in utilization can improve.

Description

Lifting mechanism

Technical Field

The utility model relates to the technical field of automatic equipment, in particular to a lifting mechanism.

Background

The lifting mechanism is widely applied to industries such as hoisting machinery, automatic equipment, nonstandard instruments and the like, wherein common driving modes include screw rod transmission and synchronous belt transmission, a rolling screw in the synchronous belt transmission and the screw rod transmission does not have a self-locking function, and the sliding screw cannot realize self-locking in occasions with larger thrust, for example, in some lifting mechanisms, due to larger gravity, after a machine is powered off, a motor loses a holding force, a transmission part falls down to cause collision phenomenon of some important parts, and the problem of damage or precision reduction occurs when the collision is serious.

In view of the above problems, various methods for preventing falling are proposed by the existing lifting mechanisms, such as adding a spring to a motor, using magnet attraction, etc., but these solutions have the following drawbacks and disadvantages: the spring occupies more space and increases the cost, and the spring is stretched along with the transmission part when the spring descends, so that the resistance is larger and larger, and the spring is not suitable for long-distance transmission; in the magnet adsorption scheme, the magnets are easy to crack when colliding, and the acting forces among the magnetic materials are difficult to match, so that the magnet adsorption scheme is also difficult to widely apply, and the use safety of the lifting mechanism is not high.

How to realize the power-off self-locking function of the lifting mechanism is an important subject to be solved in the industry.

Disclosure of Invention

The utility model provides a lifting mechanism which can realize a self-locking function when the lifting mechanism is powered off.

The utility model proposes a lifting mechanism comprising:

a mounting frame;

the moving structure is movably connected with the mounting frame;

the self-locking assembly comprises clamping jaws and clamping reset pieces, the clamping jaws and the mounting frame are arranged in a relative rotation mode, the number of the clamping jaws is at least two, the two clamping jaws are connected in a rotation mode and are symmetrically arranged and are respectively connected to two opposite sides of the clamping reset pieces, and the clamping reset pieces are used for driving the two clamping jaws to move towards each other and clamp and fix the moving structure; and

the driving assembly is connected to the mounting frame and used for driving the moving structure to move in a direction away from the self-locking assembly so as to drive the moving structure to be separated from the clamping jaw.

According to one embodiment of the utility model, the self-locking assembly further comprises a chute plate and a guide shaft, wherein the guide shaft is in sliding fit with the mounting frame, and the guide shaft is arranged in parallel with the moving direction of the moving structure; the sliding groove plate is connected with the mounting frame, a guide groove parallel to the moving direction of the moving structure is formed in the sliding groove plate, the clamping jaw at least partially stretches into the guide groove, and the clamping jaw is rotationally connected with the guide shaft; when the clamping jaw moves towards the moving structure, the guide groove is abutted against the clamping jaw and drives the two clamping jaws to move towards the direction away from each other so as to release the moving structure.

According to one embodiment of the utility model, the self-locking assembly further comprises a movable reset piece, the movable reset piece comprises a compression spring, a spring pressing plate and a fixing screw, the compression spring is sleeved on the guide shaft and is positioned on one side of the mounting frame far away from the movable structure, the spring pressing plate is covered on one side of the compression spring far away from the mounting frame, and the spring pressing plate is detachably connected to the guide shaft through the fixing screw; the compression spring is used for driving the guide shaft to move in a direction away from the moving structure.

According to one embodiment of the utility model, the outer wall of the guide shaft is provided with a limit protrusion, and the limit protrusion is arranged on one side of the mounting frame facing the clamping jaw.

According to one embodiment of the utility model, the moving structure comprises a locking block part and a connecting part which are connected, the connecting part and the mounting frame are arranged in a relatively moving way, the locking block part is arranged at one end of the connecting part, and the locking block part is connected with the outer wall of the connecting part to form a containing groove;

the clamping jaw comprises a guide part and a clamping part which are connected, wherein the guide part at least partially stretches into the guide groove and can be in sliding contact with the guide groove; when the clamping jaw clamps and fixes the moving structure, the clamping part is accommodated in the accommodating groove, and the clamping part is abutted to one side, far away from the chute plate, of the locking block part.

According to one embodiment of the utility model, the clamping jaw further comprises a limiting part, the limiting parts are arranged on the same side of the clamping part, and when the two clamping jaws clamp and fix the moving structure, the limiting parts of the two clamping jaws are mutually abutted.

According to one embodiment of the utility model, the moving structure comprises a moving block, a locking block and a linear sliding rail, wherein the moving block is in sliding connection with the mounting frame through the linear sliding rail, and the moving block is connected with the power output end of the driving assembly and is used for being connected with an external component; the locking block is detachably connected to the moving block and comprises a locking block portion and a connecting portion.

According to one embodiment of the utility model, the linear sliding rail comprises a sliding block, a guide rail and a limiting pin, the sliding rail is arranged on the mounting frame, the sliding block is in sliding fit with the sliding rail, the moving block is connected with the sliding block, and the limiting pin is arranged on one side of the sliding rail and is positioned on the moving path of the sliding block.

According to one embodiment of the utility model, the moving structure further comprises a sensing plate and a position sensor, the sensing plate is detachably connected to the connecting portion, the mounting frame is provided with a movable groove parallel to the moving direction of the moving structure, one end of the sensing plate is suspended in the movable groove, the position sensor is connected to the mounting frame and located on one side of the movable groove, and the position sensor is used for acquiring a position signal of the sensing plate.

According to one embodiment of the utility model, the mounting frame is provided with an adjusting groove; the driving assembly comprises a driving motor, a driving wheel, a synchronous wheel and a driving belt, wherein the driving motor is connected with the adjusting groove through a fastener, the driving wheel is connected to the output end of the driving motor, the synchronous wheel is rotationally connected to the mounting frame, the driving belt is respectively and dynamically connected to the driving wheel and the synchronous wheel, and the driving belt is connected to the moving structure and is used for driving the moving structure to move relative to the mounting frame.

The embodiment of the utility model has the following beneficial effects:

when the lifting mechanism is used, the driving assembly drives the moving structure to lift and move relative to the mounting frame, after the moving structure moves to be in contact with the clamping jaw, the clamping jaw can be opened under the acting force of the moving structure, and the clamping jaw is clamped on the moving structure through the acting force of the clamping reset piece, so that the moving structure and the mounting frame are relatively fixed, after the driving assembly removes the driving force, the moving structure can be fixedly and self-locked through the self-locking assembly, and at the moment, the self gravity of the moving structure can be overcome by the clamping reset piece to fix the moving structure; when the moving structure is required to be driven to move continuously, the driving component applies driving force to the moving structure, so that the moving structure overcomes the fixing acting force of the self-locking component, and the unlocking function is realized.

In the elevating system of this embodiment, through setting up auto-lock subassembly and moving structure cooperation, after moving structure and auto-lock subassembly's clamping jaw contact, can lock moving structure's high position, avoid the drive assembly outage to move moving structure and appear falling the phenomenon, moving structure also can realize the unblock function under drive assembly's drive simultaneously, elevating system's safety in utilization can improve.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a perspective view of a lifting mechanism in an embodiment of the utility model;

FIG. 2 is an enlarged view of a part of the structure of the elevating mechanism in the embodiment of the present utility model;

FIG. 3 is a side view of a lift mechanism in an embodiment of the utility model;

FIG. 4 is a schematic view of the movement of the lifting mechanism in an embodiment of the utility model;

reference numerals:

10. a lifting mechanism; 100. a mounting frame; 110. a movable groove; 120. an adjustment tank; 200. a moving structure; 210. a moving block; 220. a locking block; 221. a lock block part; 222. a connection part; 2221. a receiving groove; 230. a linear slide rail; 231. a slide block; 232. a guide rail; 233. a limiting pin; 240. an induction plate; 250. a position sensor; 300. a self-locking assembly; 310. a clamping jaw; 311. a guide part; 312. a clamping part; 3121. an inclined plane; 313. a limit part; 320. clamping the resetting piece; 321. a clamping spring; 322. clamping the mounting column; 330. a chute plate; 331. a guide groove; 340. a guide shaft; 341. a limit protrusion; 350. moving the reset piece; 351. a compression spring; 352. a spring pressing plate; 353. a fixing screw; 400. a drive assembly; 410. a driving motor; 420. a driving wheel; 430. a synchronizing wheel; 440. the belt is driven.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, an embodiment of the present utility model provides a lifting mechanism 10, which includes a mounting frame 100, a moving structure 200, a self-locking assembly 300 and a driving assembly 400, wherein the moving structure 200 is movably connected to the mounting frame 100; the self-locking assembly 300 comprises clamping jaws 310 and clamping reset pieces 320, wherein the clamping jaws 310 are rotatably arranged relative to the mounting frame 100, the number of the clamping jaws 310 is at least two, and the two clamping jaws 310 are rotatably connected and symmetrically arranged and respectively connected to two opposite sides of the clamping reset pieces 320, and the clamping reset pieces 320 are used for driving the two clamping jaws 310 to move towards each other and clamp the fixed moving structure 200; the driving assembly 400 is connected to the mounting frame 100, and the driving assembly 400 is used for driving the moving structure 200 to move away from the self-locking assembly 300 so as to drive the moving structure 200 to separate from the clamping jaw 310.

When the lifting mechanism 10 of the present embodiment is used, the driving assembly 400 drives the moving structure 200 to lift relative to the mounting frame 100, after the moving structure 200 moves to contact with the clamping jaw 310, the clamping jaw 310 can be opened under the acting force of the moving structure 200, and the clamping jaw 310 is clamped on the moving structure 200 by the acting force of the clamping reset piece 320, so that the moving structure 200 and the mounting frame 100 are relatively fixed, after the driving assembly 400 removes the driving force, the moving structure 200 can be fixedly self-locked by the self-locking assembly 300, and at the moment, the self gravity of the moving structure 200 can be overcome by the clamping reset piece 320 to fix the moving structure 200; when the moving structure 200 needs to be driven continuously, the driving force is applied to the moving structure 200 by the driving component 400, so that the moving structure 200 overcomes the fixing force of the self-locking component 300, and the unlocking function is realized.

In the lifting mechanism 10 of the present embodiment, by setting the self-locking assembly 300 to cooperate with the moving structure 200, after the moving structure 200 contacts with the clamping jaw 310 of the self-locking assembly 300, the height position of the moving structure 200 can be locked, so as to avoid the falling phenomenon of the moving structure 200 when the driving assembly 400 is powered off, and meanwhile, the moving structure 200 can also realize the unlocking function under the driving action of the driving assembly 400, so that the use safety of the lifting mechanism 10 is improved.

Referring to fig. 2, in one embodiment, the clamp restoring member 320 includes a clamp spring 321 and clamp mounting posts 322, the clamp mounting posts 322 are detachably connected to the clamping jaws 310, and the clamp mounting posts 322 on the two clamping jaws 310 are respectively connected to opposite ends of the clamp spring 321.

In the present embodiment, by providing the clamping mounting post 322 to be connected with the clamping spring 321, when the clamping spring 321 needs to be replaced, only the clamping spring 321 can be replaced, and the clamping springs 321 of different sizes can be mounted according to the weight of the moving structure 200, so that the clamping spring 321 can overcome the weight of the moving structure 200 when driving the clamping jaw 310 to clamp the moving structure 200. In the assembly process, the clamping mounting posts 322 may be first mounted on the clamping jaws 310, and then the opposite ends of the clamping springs 321 are respectively sleeved in the clamping mounting posts 322 on the two clamping jaws 310, which, of course, may also be achieved by connecting the clamping springs 321 with the two clamping mounting posts 322, and then mounting the two clamping mounting posts 322 on the corresponding clamping jaws 310, so that the assembly and the disassembly are convenient. Specifically, the clamping mounting post 322 and the clamping jaw 310 may be fixed by, for example, riveting, screwing, welding, pinning, etc., which is not limited herein, and the detachable connection may be used to mount the clamping mounting post 322 on the clamping jaw 310, so that the convenience of dismounting the clamping reset member 320 may be improved.

Specifically, referring to fig. 1 to 3, the self-locking assembly 300 further includes a chute plate 330 and a guide shaft 340, the guide shaft 340 is slidably engaged with the mounting frame 100, and the guide shaft 340 is disposed parallel to the moving direction of the moving structure 200; the chute plate 330 is connected to the mounting frame 100, the chute plate 330 is provided with a guide groove 331 parallel to the moving direction of the moving structure 200, the clamping jaw 310 at least partially extends into the guide groove 331, and the clamping jaw 310 is rotationally connected with the guide shaft 340; when the clamping jaw 310 moves towards the moving structure 200, the guide groove 331 abuts against the clamping jaw 310 and forces the two clamping jaws 310 to move away from each other to release the moving structure 200.

By providing the chute plate 330 to cooperate with the clamping jaw 310, as shown in fig. 4, when the moving structure 200 needs to be driven to separate from the clamping jaw 310, the driving assembly 400 provides power for the moving structure 200 to move downwards, at this time, the moving structure 200 moves and drives the clamping jaw 310 to move downwards so as to generate relative movement between the clamping jaw 310 and the chute plate 330, and after the clamping jaw 310 moves to a preset position (in some embodiments, the preset position is a position where the clamping jaw 310 contacts with the edge of the lower side surface of the guide slot 331), the guide slot 331 can abut against the clamping jaw 310 as the clamping jaw 310 continues to move downwards so as to drive the clamping jaw 310 to rotate under the driving action of the chute plate 330, thereby releasing the moving structure 200; when the driving assembly 400 does not provide power to the moving structure 200, the two clamping jaws 310 can be driven to move towards each other under the elastic action of the clamping reset piece 320, and finally the effect of clamping and fixing the moving structure 200 is achieved, and the clamping reset piece 320 can provide elastic acting force for overcoming the gravity of the moving structure 200 by selecting the clamping reset piece 320 with a corresponding size, so that the self-locking and fixing function of the self-locking assembly 300 to the moving structure 200 is achieved.

In addition, in the present embodiment, by providing the guide shaft 340 to cooperate with the clamping jaw 310, the guide shaft 340 may serve as a mounting carrier for the clamping jaw 310 to guide and limit the movement of the clamping jaw 310 when the clamping jaw 310 moves relative to the chute plate 330, while the two sets of clamping jaws 310 may be symmetrically disposed from the central axis of the guide shaft 340, so that when the two clamping jaws 310 clamp the moving structure 200, a stable clamping force may be provided to the moving structure 200 on opposite sides of the moving structure 200. Specifically, the guide shaft 340 may have a shaft structure with a circular or polygonal cross section, and by providing a hole site corresponding to the guide shaft 340 on the mounting frame 100, when the guide shaft 340 has a shaft structure with a polygonal cross section, the rotation of the guide shaft 340 relative to the mounting frame 100 may be limited; when the guide shaft 340 has a shaft structure of a circular cross section, although the mounting frame 100 cannot limit the rotational degree of freedom of the guide shaft 340, since the clamping jaw 310 is slidably engaged with the guide groove 331 of the chute plate 330 and the guide groove 331 is parallel to the moving direction of the guide shaft 340, the rotation of the guide shaft 340 can be limited by the action between the clamping jaw 310 and the chute plate 330.

Further, the self-locking assembly 300 further comprises a movable reset member 350, the movable reset member 350 comprises a compression spring 351, a spring pressing plate 352 and a fixing screw 353, the compression spring 351 is sleeved on the guide shaft 340 and is positioned on one side of the mounting frame 100 far away from the movable structure 200, the spring pressing plate 352 is covered on one side of the compression spring 351 far away from the mounting frame 100, and the spring pressing plate 352 is detachably connected to the guide shaft 340 through the fixing screw 353; the compression spring 351 is used to urge the guide shaft 340 to move in a direction away from the moving structure 200.

Therefore, when the driving assembly 400 drives the moving structure 200 to move and release from the clamping jaw 310, the moving reset piece 350 compresses, and when the clamping jaw 310 is separated from the moving structure 200, the moving reset piece 350 releases elastic potential energy to drive the clamping jaw 310 to move upwards for reset, and by setting the moving reset piece 350 to cooperate with the guide shaft 340, the reset action of the clamping jaw 310 in the vertical direction can be realized until the next clamping jaw 310 is clamped and fixed with the moving structure 200. Of course, in some embodiments, when the self-locking assembly 300 removes the moving restoring member 350, the clamping jaw 310 can also be restored under the elastic force of the clamping restoring member 320, where the clamping restoring member 320 can be used to overcome the gravity of the clamping jaw 310 to clamp the moving structure 200, and the clamping restoring member 320 can be used to drive the clamping jaw 310 to slide against the guide slot 331 and move back to restore.

Specifically, the outer wall of the guide shaft 340 is provided with a limit protrusion 341, and the limit protrusion 341 is disposed on a side of the mounting frame 100 facing the clamping jaw 310.

In this embodiment, the limiting protrusion 341 is disposed on a side of the mounting frame 100 facing the moving structure 200, as in the embodiment shown in fig. 1, the limiting protrusion 341 may also be disposed on a side of the mounting frame 100 away from the moving reset element 350; by providing the limiting protrusion 341 on the outer wall of the guide shaft 340, during the reverse movement (i.e., the upward movement in fig. 4) of the guide shaft 340, after the guide shaft 340 moves to the preset position, the movement of the guide shaft 340 may be limited by the limiting protrusion 341 abutting against the mounting frame 100. Specifically, the limit projection 341 may be formed on the guide shaft 340 by cutting and becomes a body structure on the guide shaft 340; of course, the limiting protrusion 341 may be disposed separately from the guide shaft 340, and may be disposed on the guide shaft 340 in an adjustable manner, so that a user can adjust the height of the guide shaft 340 according to the actual self-locking requirement of the moving structure 200 when using the lifting mechanism 10.

Referring to fig. 2, in an embodiment, the moving structure 200 includes a locking piece 221 and a connecting portion 222, the connecting portion 222 is disposed opposite to the mounting frame 100, the locking piece 221 is disposed at one end of the connecting portion 222, and the locking piece 221 is connected with an outer wall of the connecting portion 222 to form a receiving groove 2221; the clamping jaw 310 comprises a guide part 311 and a clamping part 312 which are connected, wherein the guide part 311 at least partially stretches into the guide groove 331 and can be in sliding contact with the guide groove 331; when the clamping jaw 310 clamps the fixed moving structure 200, the clamping portion 312 is accommodated in the accommodating groove 2221, and the clamping portion 312 abuts against a side of the locking piece 221 away from the chute plate 330.

In the present embodiment, the locking piece 221 is connected to the connecting portion 222 to form a T-shaped structure, and the receiving grooves 2221 are located at two horizontally opposite sides of the connecting portion 222, and when the clamping jaw 310 clamps the moving structure 200, the clamping portion 312 is located in the receiving groove 2221, so that the clamping jaw 310 and the moving structure 200 are more compact; when the driving assembly 400 drives the moving structure 200 to move downwards, the guide portion 311 can slide relatively with the guide groove 331, so that the chute plate 330 can drive the clamping jaw 310 to rotate relative to the guide shaft 340, and finally overcomes the elastic force of the clamping reset piece 320, so that the clamping jaw 310 can release the moving structure 200.

Specifically, the end of the clamping portion 312 is further provided with a bevel 3121, and the bevel 3121 of the two clamping jaws 310 form a horn-like structure that is opened upwards, when the moving structure 200 drives the self-locking assembly 300 to open, the locking piece 221 can abut against the bevel 3121 and slidingly contact with the clamping portion 312 to drive the two clamping jaws 310 to move towards a direction away from each other, and finally achieve unlocking release of the clamping jaws 310.

In an embodiment, the clamping jaw 310 further includes a limiting portion 313, the limiting portion 313 is disposed on the same side of the clamping portion 312, and when the two clamping jaws 310 clamp the fixed moving structure 200, the limiting portions 313 of the two clamping jaws 310 abut against each other.

Therefore, when the clamping jaw 310 clamps the moving structure 200, the limiting portions 313 on the two clamping jaws 310 can abut against each other, and the depth of the clamping portions 312 entering the accommodating groove 2221 is limited by the limiting portions 313, so that the phenomenon that the clamping jaws 310 squeeze and wear the surface of the connecting portion 222 in the process of clamping the moving structure 200 is avoided, and therefore the durability of the self-locking assembly 300 is improved. Of course, in some embodiments, the limiting portion 313 and the clamping jaw 310 may be detachably mounted, and the corresponding limiting portion 313 is selected according to the width of the connecting portion 222, so as to improve the applicability of the clamping jaw 310.

Specifically, referring to fig. 3, the moving structure 200 includes a moving block 210, a locking block 220 and a linear rail 230, the moving block 210 is slidably connected with the mounting frame 100 through the linear rail 230, and the moving block 210 is connected to a power output end of the driving assembly 400 and is used for being connected with an external member; the locking block 220 is detachably connected to the moving block 210, and the locking block 220 includes a locking block portion 221 and a connecting portion 222.

In this embodiment, by arranging the linear slide rail 230 to be respectively connected with the mounting frame 100 and the moving block 210, the movement of the moving block 210 can be guided and limited, so that the moving block 210 can move along a straight line relative to the mounting frame 100, and when the moving block 210 is connected with an external member, the external member can be driven to move up and down by the movement of the moving structure 200; through adopting detachable connection's mode assembly movable block 210 and latch segment 220, when movable structure 200 produced wearing and tearing along with the use, perhaps when needing to install the external component of equidimension, need not to change movable structure 200 wholly, only carry out dismouting change to movable block 210 or latch segment 220, use cost can be reduced, and the dismouting convenience degree can be improved.

Referring to fig. 3, in an embodiment, the linear sliding rail 230 includes a sliding block 231, a guiding rail 232 and a limiting pin 233, the sliding rail is disposed on the mounting frame 100, the sliding block 231 is slidably matched with the sliding rail, the moving block 210 is connected to the sliding block 231, and the limiting pin 233 is disposed on one side of the sliding rail and located on a moving path of the sliding block 231.

By arranging the limiting pin 233 on the moving path of the sliding block 231, when the sliding block 231 drives the moving block 210 to move along the guide rail 232 to the end of the preset path, the limiting pin 233 can abut against the sliding block 231 to limit the movement of the moving block 210; of course, the stopper pins 233 may be provided only in one movement direction of the slider 231 (as shown in fig. 3, the stopper pins 233 may be provided on the upper side or the lower side of the slider 231), and may be provided only in one movement direction of the slider 231, or may be provided on opposite sides of the slider 231, so as to limit movement of the slider 231 in opposite directions.

Further, referring to fig. 1 and 2, the moving structure 200 further includes a sensing plate 240 and a position sensor 250, the sensing plate 240 is detachably connected to the connecting portion 222, the mounting frame 100 is provided with a movable slot 110 parallel to the moving direction of the moving structure 200, one end of the sensing plate 240 is suspended in the movable slot 110, the position sensor 250 is connected to the mounting frame 100 and located at one side of the movable slot 110, and the position sensor 250 is used for obtaining a position signal of the sensing plate 240.

Therefore, when the moving block 210 Xu Dushi is moved by the mounting frame 100, the moving block 210 can drive the sensing plate 240 to move, and the moving position of the moving block 210 is judged by the cooperation of the sensing plate 240 and the position sensor 250; the position sensor 250 may be connected to a control module of an external device or a control module built in the lifting mechanism 10, and transmit a position signal of the moving block 210 to the control module for calculation control, for example, control the start and stop of the driving assembly 400. The control module comprises, but is not limited to, a PLC, an industrial control computer and a singlechip. Specifically, the position sensor 250 may be a slot type photoelectric switch, and when the sensing plate 240 moves to a sensing position of the photoelectric switch, the photoelectric switch may feed back a control signal to implement a position sensing function of the moving block 210. In addition, by providing the movable slot 110 on the mounting frame 100 to be engaged with the sensing plate 240, the combined structure of the moving structure 200 and the mounting frame 100 can be made more compact.

Specifically, the mounting frame 100 is provided with an adjusting groove 120; the driving assembly 400 includes a driving motor 410, a driving wheel 420, a synchronizing wheel 430 and a driving belt 440, the driving motor 410 is connected with the adjustment slot 120 through a fastener, the driving wheel 420 is connected with an output end of the driving motor 410, the synchronizing wheel 430 is rotatably connected with the mounting frame 100, the driving belt 440 is respectively connected with the driving wheel 420 and the synchronizing wheel 430 in a power mode, and the driving belt 440 is connected with the moving structure 200 and is used for driving the moving structure 200 to move relative to the mounting frame 100.

In the present embodiment, the adjustment groove 120 may be a bar-shaped groove, or a plurality of connection holes spaced apart along the moving direction of the moving structure 200; by adopting the connection between the adjusting groove 120 and the driving motor 410, the installation position of the driving motor 410 on the mounting frame 100 can be adjusted according to the driving requirement of the driving assembly 400, or the position between the driving wheel 420 and the synchronizing wheel 430 can be adjusted when the driving belt 440 needs to be tightened; when the moving structure 200 is provided with the sensing plate 240, the driving belt 440 may be provided between the sensing plate 240 and the moving block 210 such that the moving structure 200 and the driving belt 440 are fixedly coupled.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A lifting mechanism, comprising:

a mounting frame;

the moving structure is movably connected with the mounting frame;

the self-locking assembly comprises clamping jaws and clamping reset pieces, the clamping jaws and the mounting frame are arranged in a relative rotation mode, the number of the clamping jaws is at least two, the two clamping jaws are connected in a rotation mode and are symmetrically arranged and are respectively connected to two opposite sides of the clamping reset pieces, and the clamping reset pieces are used for driving the two clamping jaws to move towards each other and clamp and fix the moving structure; and

the driving assembly is connected to the mounting frame and used for driving the moving structure to move in a direction away from the self-locking assembly so as to drive the moving structure to be separated from the clamping jaw.

2. The lifting mechanism of claim 1, wherein the self-locking assembly further comprises a chute plate and a guide shaft, the guide shaft is in sliding fit with the mounting frame, and the guide shaft is arranged in parallel with the moving direction of the moving structure; the sliding groove plate is connected with the mounting frame, a guide groove parallel to the moving direction of the moving structure is formed in the sliding groove plate, the clamping jaw at least partially stretches into the guide groove, and the clamping jaw is rotationally connected with the guide shaft; when the clamping jaw moves towards the moving structure, the guide groove is abutted against the clamping jaw and drives the two clamping jaws to move towards the direction away from each other so as to release the moving structure.

3. The lifting mechanism of claim 2, wherein the self-locking assembly further comprises a movable reset member, the movable reset member comprises a compression spring, a spring pressing plate and a fixing screw, the compression spring is sleeved on the guide shaft and is positioned on one side of the mounting frame far away from the movable structure, the spring pressing plate is covered on one side of the compression spring far away from the mounting frame, and the spring pressing plate is detachably connected to the guide shaft through the fixing screw; the compression spring is used for driving the guide shaft to move in a direction away from the moving structure.

4. The lifting mechanism according to claim 2, wherein a limit protrusion is arranged on the outer wall of the guide shaft, and the limit protrusion is arranged on one side of the mounting frame facing the clamping jaw.

5. The lifting mechanism according to claim 2, wherein the moving structure comprises a locking block part and a connecting part which are connected, the connecting part and the mounting frame are arranged in a relatively moving way, the locking block part is arranged at one end of the connecting part, and the locking block part is connected with the outer wall of the connecting part to form a containing groove;

the clamping jaw comprises a guide part and a clamping part which are connected, wherein the guide part at least partially stretches into the guide groove and can be in sliding contact with the guide groove; when the clamping jaw clamps and fixes the moving structure, the clamping part is accommodated in the accommodating groove, and the clamping part is abutted to one side, far away from the chute plate, of the locking block part.

6. The lifting mechanism of claim 5, wherein the clamping jaw further comprises a limiting portion, the limiting portions are arranged on the same side of the clamping portion, and when the two clamping jaws clamp and fix the moving structure, the limiting portions of the two clamping jaws are abutted against each other.

7. The lift mechanism of claim 5, wherein the moving structure comprises a moving block, a locking block, and a linear slide, the moving block is slidably connected to the mounting bracket via the linear slide, and the moving block is connected to a power output end of the drive assembly and is adapted to be connected to an external member; the locking block is detachably connected to the moving block and comprises a locking block portion and a connecting portion.

8. The lifting mechanism of claim 7, wherein the linear slide comprises a slide block, a guide rail and a limiting pin, the slide rail is arranged on the mounting frame, the slide block is in sliding fit with the slide rail, the moving block is connected to the slide block, and the limiting pin is arranged on one side of the slide rail and is positioned on the moving path of the slide block.

9. The lifting mechanism of claim 5, wherein the moving structure further comprises a sensing plate and a position sensor, the sensing plate is detachably connected to the connecting portion, the mounting frame is provided with a movable groove parallel to the moving direction of the moving structure, one end of the sensing plate is suspended in the movable groove, the position sensor is connected to the mounting frame and located on one side of the movable groove, and the position sensor is used for acquiring a position signal of the sensing plate.

10. The lifting mechanism of claim 1, wherein the mounting frame is provided with an adjustment slot; the driving assembly comprises a driving motor, a driving wheel, a synchronous wheel and a driving belt, wherein the driving motor is connected with the adjusting groove through a fastener, the driving wheel is connected to the output end of the driving motor, the synchronous wheel is rotationally connected to the mounting frame, the driving belt is respectively and dynamically connected to the driving wheel and the synchronous wheel, and the driving belt is connected to the moving structure and is used for driving the moving structure to move relative to the mounting frame.