CN217051544U

CN217051544U - Locking mechanism for extension platform

Info

Publication number: CN217051544U
Application number: CN202220232004.2U
Authority: CN
Inventors: 郑胡侠; 杨荣罗; 郑元唐; 陈伟
Original assignee: Hangzhou Hangcha High Altitude Equipment Co ltd; Hangcha Group Co Ltd
Current assignee: Hangzhou Hangcha High Altitude Equipment Co ltd; Hangcha Group Co Ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-07-26
Anticipated expiration: 2032-01-25

Abstract

The utility model discloses an extend platform locking mechanism, including moving platform (13), handle (1), connecting rod (2), fixing base (3), moving platform (13) top is equipped with the support, moving platform (13) bottom sliding connection has fixed platform (12), handle (1) rotates with the support top to be connected, handle (1) is fixed with linking pole (1.1), connecting rod (2) are articulated with linking pole (1.1), fixing base (3) are articulated with connecting rod (2), moving platform (13) are fixed with uide bushing (4), fixing base (3) and uide bushing (4) sliding connection, fixing base (3) are fixed with the first limit structure who is used for locking moving platform (13), be equipped with on fixed platform (12) with first limit structure complex second limit structure. The utility model provides an extend platform locking mechanism has simple structure, and the locking is stable, and is easy and simple to handle, and advantages such as moving platform can not be raised to the locking process.

Description

Locking mechanism for extension platform

Technical Field

The utility model belongs to the technical field of the extension platform locking and specifically relates to an extension platform locking mechanism is related to.

Background

Most of existing scissor-fork type aerial work platforms are provided with extension platforms, the extension platforms are mainly positioned in a pedal plate locking mode, when the extension platforms are large in size, due to the fact that weight is too large, an operator needs to push out the extension platforms when stepping on the pedals, and operation is inconvenient. Therefore, there is a need for an extension platform locking mechanism that can easily lock the extension platform and ensure that the structures on the platform do not move violently relative to each other as much as possible.

Patent No. 201110075997.3 discloses a platform locking device for movable industry. The device comprises an upper rail wheel seat, an upper rail wheel, a transmission device, a lock seat, a rack and a movable operation platform, wherein the upper rail wheel seat is arranged on one side of the inner end of the movable operation platform, the upper rail is arranged on the bottom surface of the fixed operation platform, an upper rail roller wheel is arranged on the upper rail, the upper rail wheel seat is in a triangular shape with an upward bottom edge, one side of the upper end of the upper rail wheel seat is hinged with the movable operation platform, the other side of the upper end of the upper rail wheel seat is hinged with the transmission device, the transmission device is connected with a lock handle, the lock seat is fixedly arranged on the outer side surface of the upper rail wheel seat, lock teeth are transversely arranged on the lock seat, the rack is transversely arranged on the inner side wall of the fixed operation platform, and when the lock handle is pressed downwards, the upper rail wheel seat is lifted to enable the lock teeth to be meshed with the rack to keep the movable operation platform locked. The lock seat of the device is transversely arranged on the movable operation platform, and the upper rail wheel seat is lifted to enable the lock teeth to be meshed with the racks to keep the movable operation platform locked. But one side of the upper rail wheel seat is hinged with the movable operation platform, the other side of the upper rail wheel seat is hinged with the transmission device, and the transmission device is connected with the lock handle. When the lock pushes down, the upper rail roller can move downwards, so that the movable operation platform is lifted by a certain distance, and when the weight of the movable operation platform is larger, the lock pushes down harder.

Disclosure of Invention

The utility model discloses an overcome among the prior art extension platform locking difficulty, or the problem of locking in-process moving platform displacement about can provides an extension platform locking mechanism, has simple structure, and the locking is stable, and is easy and simple to handle, advantages such as moving platform can not be raised in the locking process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an extend platform locking mechanism, including moving platform, the handle, the connecting rod, a fixed base, the moving platform top is equipped with the support, moving platform bottom sliding connection has fixed platform, the handle rotates with the support top to be connected, the handle is fixed with the joint pole, the connecting rod is articulated with the joint pole, the fixing base is articulated with the connecting rod, moving platform is fixed with the uide bushing, fixing base and uide bushing sliding connection, the fixing base is fixed with the first limit structure who is used for locking moving platform, be equipped with on the fixed platform with first limit structure complex second limit structure.

According to the technical scheme, when the extension platform needs to be locked, the handle is manually held and pressed downwards, the connecting rod moves along with the handle and is folded relative to the connecting rod in the process of pressing the handle downwards, the length of the connecting rod in the vertical direction is reduced, the connecting rod is driven to move upwards, the connecting rod drives the fixing seat to move upwards, the fixing seat drives the first limiting structure to be matched with the second limiting structure, the fixing seat, the guide sleeve and the fixing platform are fixed mutually, and the guide sleeve is fixed on the moving platform, so that the moving platform is fixed with the fixing platform, and the locking process is completed; when the platform needs to be extended to continue to extend or retract, the handle can be manually lifted upwards, the connecting rod moves along with the handle in the lifting process of the handle and is unfolded relative to the connecting rod, the length of the connecting rod in the vertical direction is increased, the connecting rod is pushed to move downwards, the fixing seat moves downwards along with the connecting rod, the first limiting structure is separated from the second limiting structure, the moving platform and the fixing platform are not fixed any more, and the moving platform can continue to slide relative to the fixing platform. Only handle, joint pole, connecting rod, fixing base take place to remove among the whole process, can not influence the position of moving platform itself, simple structure, convenient operation, limit structure mutually supports the locking, and uide bushing restriction fixing base can only reciprocate, and the locking is stable, and the fixing base also can be protected to the uide bushing simultaneously, avoids the fixing base to receive the external impact and damages.

As the preferred, moving platform includes fixed plate and gyro wheel, and the fixed platform bottom is equipped with the guide rail, and the gyro wheel cooperates with the guide rail and fixed with moving platform through the fixed plate for moving platform can slide along with the relative fixed platform of gyro wheel and extend on the guide rail, realizes moving platform and fixed platform's sliding connection through gyro wheel, guide rail, fixed plate mutually supporting, and the slip process is stable.

Preferably, the first limiting structure is a fixed rack, the second limiting structure is a rack, the fixed rack is matched with the rack to realize locking action, in the locking process, the rack rises to be matched with the fixed rack to lock the movable platform and the fixed platform in the vertical direction, meanwhile, the teeth are matched with each other to limit the relative movement of the movable platform and the fixed platform in the horizontal direction, and the locking is stable.

Preferably, the cushion block is fixed on the inner wall of the guide sleeve, the guide sleeve is in contact with the fixed seat through the cushion block and limits the movement of the fixed seat, and the cushion block is arranged to perfect the sliding connection between the guide sleeve and the fixed seat, so that the whole mechanism is more stable.

As preferred, the material of cushion is self-lubricating nylon, and the cushion surface is smooth, when restriction fixed block motion, guarantees that the fixed block up-and-down motion is smooth and easy, makes the locking process more smooth.

Preferably, a movable platform guard railing is fixed on the support, the movable platform guard railing can protect the safety of operators, and the operators are prevented from falling off the working platform.

Preferably, the connecting rod is provided with a clamping groove matched with the handle, and when the handle is pressed down, the handle is directly clamped in the clamping groove, so that the positioning is convenient.

Preferably, the first limiting structure is a circular shaft, the second limiting structure is an arc-shaped groove, the circular shaft and the arc-shaped groove are matched to realize locking action, and the first limiting structure and the second limiting structure can be various structures capable of being matched with each other, including but not limited to a rack and a rack, and the circular shaft and the arc-shaped groove.

The utility model has the advantages that: (1) the structure is simple, and the operation is simple and convenient; (2) the moving platform cannot be lifted in the whole process, and the structure is stable; (3) the locking process can be realized through various structures, and the locking is stable; (4) the guide sleeve is arranged to limit and protect the fixed seat from moving, and the mechanism is stable in motion.

Drawings

FIG. 1 is a schematic view of the present invention in cooperation with a work table;

fig. 2 is an isometric view of the overall structure of the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

fig. 4 is a schematic diagram of the locking process of the present invention.

In the figure: the device comprises a handle 1, a connecting rod 1.1, a connecting rod 2, a fixed seat 3, a guide sleeve 4, a rack 5, a fixed rack 6, a roller 7, a guide rail 8, a fixed plate 9, a clamping groove 10, a cushion block 11, a fixed platform 12 and a movable platform 13.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Example 1:

as shown in fig. 1, 2, 3, and 4, an extension platform locking mechanism includes a handle 1, a connecting rod 1.1, a connecting rod 2, a fixing seat 3, a guide sleeve 4, a rack 5, a fixing rack 6, a roller 7, a guide rail 8, a fixing plate 9, a slot 10, a cushion block 11, a fixing platform 12, and a moving platform 13;

sliding connection has fixed platform 12 bottom moving platform 13, handle 1 rotates with the support top to be connected, handle 1 is fixed with joint pole 1.1, connecting rod 2 is articulated with joint pole 1.1, fixing base 3 is articulated with connecting rod 2, moving platform 13 is fixed with uide bushing 4, fixing base 3 and uide bushing 4 sliding connection, fixing base 3 is fixed with the first limit structure who is used for locking moving platform 13, be equipped with on the fixed platform 12 with first limit structure complex second limit structure. The movable platform 13 comprises a fixed plate 9 and a roller 7, the bottom of the fixed platform 12 is provided with a guide rail 8, the roller 7 is matched with the guide rail 8 and is fixed with the movable platform 13 through the fixed plate 9, so that the mobile platform 13 can extend slidingly on the rails 8 with the rollers 7 with respect to the fixed platform 12, the first limiting structure is a fixed rack 6, the second limiting structure is a rack 5, the fixed rack 6 is matched with the rack 5 to realize locking action, a cushion block 11 is fixed on the inner wall of the guide sleeve 4, the guide sleeve 4 is contacted with the fixed seat 3 through the cushion block 11 and limits the movement of the fixed seat 3, the cushion block 11 is made of self-lubricating nylon, a movable platform guard rail 14 is fixed on the support, a clamping groove 10 matched with the handle 1 is arranged on the connecting rod 2, the first limiting structure can also be a circular shaft, the second limiting structure can also be an arc-shaped groove, and the circular shaft is matched with the arc-shaped groove to realize locking action.

In the technical scheme, when the extension platform is required to be locked in actual use, the handle 1 is manually held and pressed down, the connecting rod 1.1 moves along with the handle 1 and is folded relative to the connecting rod 2 in the pressing down process of the handle 1, the length occupied by the connecting rod 1.1 in the vertical direction is reduced, the connecting rod 2 is driven to move upwards, the connecting rod 2 drives the fixing seat 3 to move upwards, the fixing seat 3 drives the first limiting structure to be matched with the second limiting structure, at the moment, the fixing seat 3, the guide sleeve 4 and the fixing platform 12 are fixed with each other, and the guide sleeve 4 is fixed on the moving platform 13, so that the moving platform 13 is fixed with the fixing platform 12, and the locking process is completed; when the extension platform needs to be extended or retracted continuously, the handle 1 can be lifted upwards manually, the connecting rod 1.1 moves along with the handle 1 and is unfolded relative to the connecting rod 2 in the lifting process, the length of the connecting rod 1.1 occupied in the vertical direction is increased, the connecting rod 2 is pushed to move downwards, the fixing seat 3 moves downwards along with the connecting rod, the first limiting structure is separated from the second limiting structure, the mobile platform 13 is not fixed with the fixed platform 12, and the mobile platform 13 can continuously slide relative to the fixed platform 12. In the whole process, only the handle 1, the connecting rod 1.1, the connecting rod 2 and the fixed seat 3 move, the position of the movable platform 13 is not influenced, the structure is simple, the operation is convenient, the limiting structures are mutually matched and locked, the guide sleeve 4 limits the fixed seat 3 to only move up and down, the locking is stable, meanwhile, the guide sleeve 4 can also protect the fixed seat 3, the fixed seat 3 is prevented from being damaged by external impact, the sliding connection between the movable platform 13 and the fixed platform 12 is realized through the mutual matching of the idler wheel 7, the guide rail 8 and the fixed plate 9, the sliding process is stable, in the locking process, the rack 5 ascends to be matched with the fixed rack 6, the movable platform 13 and the fixed platform 12 are locked in the vertical direction, meanwhile, the relative movement between the movable platform 13 and the fixed platform 12 in the horizontal direction is limited through the mutual matching between teeth, the locking is stable, the sliding connection between the guide sleeve 4 and the fixed seat 3 is perfected through the cushion block 11, make whole mechanism more stable, 11 surfaces of cushion are smooth, in the motion of restriction fixed block 3, it is smooth and easy to guarantee that 3 up-and-down motion of fixed block are smooth and easy, make locking process more smooth, moving platform rail guard 14 can protect operating personnel's safety, prevent operating personnel from falling from work platform, be equipped with on the connecting rod 2 with handle 1 complex draw-in groove 10, when holding 1 and pushing down, directly block handle 1 in draw-in groove 10, convenient location, first limit structure and second limit structure can be various structures that can mutually support, including but not limited to rack and rack, circle axle and arc wall.

Claims

1. The utility model provides an extend platform locking mechanism, which is characterized by, including moving platform (13), handle (1), connecting rod (2), fixing base (3), moving platform (13) top is equipped with the support, moving platform (13) bottom sliding connection has fixed platform (12), handle (1) rotates with the support top to be connected, handle (1) is fixed with linking pole (1.1), connecting rod (2) are articulated with linking pole (1.1), fixing base (3) are articulated with connecting rod (2), moving platform (13) are fixed with uide bushing (4), fixing base (3) and uide bushing (4) sliding connection, fixing base (3) are fixed with the first limit structure who is used for locking moving platform (13), be equipped with on fixed platform (12) with first limit structure complex second limit structure.

2. The extension platform locking mechanism as claimed in claim 1, wherein the moving platform (13) comprises a fixed plate (9) and a roller (7), the bottom of the fixed platform (12) is provided with a guide rail (8), and the roller (7) is matched with the guide rail (8) and fixed with the moving platform (13) through the fixed plate (9), so that the moving platform (13) can slide and extend on the guide rail (8) along with the roller (7) relative to the fixed platform (12).

3. The locking mechanism of claim 2, wherein the first limiting structure is a fixed rack (6), the second limiting structure is a rack (5), and the fixed rack (6) is matched with the rack (5) to realize the locking action.

4. The locking mechanism of claim 3, wherein the guiding sleeve (4) has a spacer (11) fixed on the inner wall thereof, and the guiding sleeve (4) contacts the fixed seat (3) through the spacer (11) and limits the movement of the fixed seat (3).

5. An extension platform locking mechanism as claimed in claim 4 wherein the spacer (11) is of self-lubricating nylon.

6. An extension platform locking mechanism as claimed in claim 1, 2, 3, 4 or 5 wherein a moving platform guard rail (14) is fixed to the support.

7. The locking mechanism for the extension platform as claimed in claim 1, 2, 3, 4 or 5, wherein the connecting rod (2) is provided with a slot (10) which is matched with the handle (1).

8. The extension platform locking mechanism of claim 2 wherein the first limiting structure is a circular shaft and the second limiting structure is an arcuate slot, the circular shaft and the arcuate slot cooperating to provide the locking action.