CN217301151U

CN217301151U - Locking device

Info

Publication number: CN217301151U
Application number: CN202122140956.XU
Authority: CN
Inventors: 吕红卫; 张凯佳; 邹乐松; 袁红亮
Original assignee: Zhejiang Kewo Transmission Machinery Co ltd
Current assignee: Zhejiang Kewo Transmission Machinery Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-08-26
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to a lift table technical field, specifically speaking relate to a locking device. The existing lifting table is basically an electric lifting table with a motor and a gear box, has relatively high cost and must be used in an environment with a power supply. The locking mechanism in the existing manual lifting table is complex in structure and easy to damage. A locking device is characterized in that an inner pipe and an outer pipe are locked through a locking mechanism, the locking mechanism comprises a cover body, a clamping block and a long rod, a blocking piece is fixedly arranged on the long rod, and the lower side surface of the clamping block is attached to the blocking piece; the clamping block is rotationally connected with the cover body through a pin shaft, the long rod penetrates through a first long groove of the clamping block, the long rod penetrates through the sliding plate downwards, a sliding block is arranged below the long rod, the sliding block abuts against the sliding plate, and the sliding plate is connected with the axis of the inner pipe and the axis of the outer pipe in an inclined angle; one end of the sliding plate is arranged on the inner pipe and extends downwards, and the other end of the sliding plate is abutted against the inner side of the outer pipe; the fixture block rotates downwards to be clamped with the cover body, and the inner pipe cannot move downwards; the clamping block rotates upwards to be separated from the cover body, and the inner pipe can move up and down. The utility model has the advantages of reasonable structure, long service life and convenient and fast locking.

Description

Locking device

Technical Field

The utility model relates to a lift table technical field, more specifically say and relate to a locking device.

Background

In present society, people increasingly pay attention to physical health, the office table is changed into a height-adjustable lifting table from a height-invariable table, and the office table is changed into a standing and sitting combined office from an original sitting office, so that various diseases affecting health caused by long-time sitting are greatly avoided, and the working efficiency can be improved. The existing lifting table is basically an electric lifting table with a motor and a gear box, and is relatively high in cost, and the electric lifting table still needs to be in an environment with a power supply, otherwise, the lifting action cannot be carried out, so that the manual lifting table is provided. The locking mechanism in the existing manual lifting table is complex in structure and easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a locking device which is reasonable in structure, long in service life and convenient to lock aiming at the defects of the prior art.

A locking device comprises an outer pipe and an inner pipe, wherein the outer pipe and the inner pipe are locked through a locking mechanism, the locking mechanism comprises a cover body, a clamping block, a long rod, a sliding plate and a sliding block, a blocking piece is fixedly arranged on the long rod, and the lower side surface of the clamping block is attached to the blocking piece; the clamping block is rotationally connected with the cover body through a pin shaft, the long rod penetrates through a first long groove of the clamping block, the long rod penetrates through the sliding plate downwards, a sliding block is arranged below the sliding plate, the sliding block abuts against the sliding plate, and the sliding plate is connected with the axes of the outer pipe and the inner pipe in an inclined angle; one end of the sliding plate is arranged on the inner pipe and extends downwards, and the other end of the sliding plate is abutted against the inner side of the outer pipe; the fixture block rotates downwards to be clamped with the cover body, and the inner pipe cannot move downwards; the clamping block rotates upwards to be separated from the cover body, and the inner pipe can move up and down. The utility model has the advantages of reasonable structure, long service life and convenient and fast locking.

As a further improvement and supplement to the above solution, the present invention further comprises the following additional technical features:

the slider be the cylinder structure, and connect through the staff, the slider can roll, break away from and support to lean on convenient and fast.

The long rod is provided with a pressure spring above the cover body. The pressure spring after pressing produces ascending power, upwards draws the stock, prevents that the stock from moving down, guarantees fixture block downside and separation blade laminating, further protects and locks.

The sliding plate is provided with a second elongated slot with an opening at one end, and the long rod is convenient to move.

The locking mechanism is provided with a cover cap. The whole locking mechanism is covered, so that the protection is effectively carried out.

The cover body and the clamping block are made of nylon. Light weight, wear resistance, good comprehensive performance and long service life.

Use the utility model discloses following beneficial effect can be reached: this practical rational in infrastructure, long service life and locking are convenient, and the slider can roll, breaks away from and supports and lean on convenient and fast, moves down through the stock, and the slide supports all the time and leans on in the outer tube inboard, locks, and the pressure spring produces the power with the stock pull-up simultaneously, locks. The double locking protection, locking convenient and fast just adjust the convenience.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the locking mechanism 3 of the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a left side view of the present invention.

Fig. 5 is a schematic structural diagram of the inner tube 2 of the present invention.

Fig. 6 is a schematic structural view of the sliding plate 35 of the locking mechanism 3 of the present invention.

Fig. 7 is a schematic structural view of the front side of the cover 31 of the middle locking mechanism 3 of the present invention.

Fig. 8 is a schematic structural view of the rear side of the cover 31 of the middle locking mechanism 3 of the present invention.

Fig. 9 is a schematic structural diagram of the latch 33 of the locking mechanism 3 of the present invention.

Detailed Description

The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-9, the present invention is a locking device.

The locking device described in this embodiment includes an outer tube 1 and an inner tube 2, a square groove 21 which is circumferentially arranged on the circumferential surface of the inner tube 2 and communicates with the inner hole, and two counter bores 22 which are symmetrically arranged with the square groove 21 are arranged on the lower side. The outer pipe 1 and the inner pipe 2 are locked by a locking mechanism 3, the locking mechanism 3 comprises a cover body 31, a clamping block 33, a long rod 34, a sliding plate 35 and a sliding block 37, a blocking piece 341 is fixedly arranged on the long rod 34, and the blocking piece 341 is in a circular sheet structure. The cover 31 has an arc-shaped inner side, and is attached to and fixed on the inner tube 2, and the cover 31 has a through opening 3101. The clamping block 33 is rotatably connected with the cover body 31 through the pin shaft 32, the clamping block 33 passes through the opening 3101 and is positioned in the square groove of the inner tube 2, the long rod 34 passes through the first long groove of the clamping block 33, the clamping block 33 is provided with the lower side surface of the first long groove and is attached to the stop piece 341, the long rod 34 passes through the sliding plate 35 downwards, the sliding block 37 is arranged below the sliding plate 35, the sliding block 37 is abutted against the sliding plate 35, and the sliding plate 35 is connected with the axial lines of the outer tube 1 and the inner tube 2 in an inclined angle. One end of the slide plate 35 is arranged on the inner tube 2, is riveted on the two counter bores 22 of the inner tube 2 through rivets 36 and extends downwards, and the other end abuts against the inner side of the outer tube 1. The latch 33 rotates downwards to be engaged with the cover 31, and the inner tube 2 cannot move downwards; the latch 33 is rotated upward to be separated from the cap body 31, and the inner tube 2 can be moved up and down.

Furthermore, the sliding block 37 is a cylindrical structure and is connected through a small shaft 38, a frame-shaped fixing block 39 is arranged on the long rod 34, the small shaft 38 penetrates through the sliding block 37, and two ends of the small shaft are fixed on the fixing block 39.

Further, the long rod 34 is provided with a compression spring 310 above the cover 31.

Furthermore, the sliding plate 35 is provided with a second elongated slot 351 with an open end, and two sides of the sliding plate 35 are provided with folded edges 352 for structural reinforcement.

Furthermore, a cap 311 is arranged on the locking mechanism 3, and the cap 311 is sleeved on the outer side of the pressure spring 310.

Furthermore, the material of the cover 31 and the latch 33 is nylon.

When the locking device is used, the clamping block 33 rotates downwards to be clamped with the cover body 31, the sliding plate 35 abuts against the inner side of the outer pipe 1, meanwhile, the pressing spring 310 presses upwards to generate an upward force to move the long rod 34 upwards, and the long rod 34 cannot move downwards, namely the inner pipe 2 cannot move downwards. The latch 33 is rotated upward to be separated from the cap body 31, and the inner tube 2 can be moved up and down.

The above is the preferred embodiment of the present invention, and the protection scope of the present invention is not limited, and the deformation and improvement made by the design idea of the present invention for those skilled in the art should be considered as the protection scope of the present invention.

Claims

1. A locking device comprises an outer pipe (1) and an inner pipe (2), and is characterized in that: the outer pipe (1) and the inner pipe (2) are locked by a locking mechanism (3), the locking mechanism (3) comprises a cover body (31), a clamping block (33), a long rod (34), a sliding plate (35) and a sliding block (37), a blocking piece (341) is fixedly arranged on the long rod (34), and the lower side surface of the clamping block (33) is attached to the blocking piece (341); the clamping block (33) is rotatably connected with the cover body (31) through a pin shaft (32), the long rod (34) penetrates through a first long groove of the clamping block (33), the long rod (34) downwards penetrates through the sliding plate (35), a sliding block (37) is arranged below the long rod, the sliding block (37) abuts against the sliding plate (35), and the sliding plate (35) is connected with the axial lines of the outer pipe (1) and the inner pipe (2) in an oblique angle; one end of the sliding plate (35) is arranged on the inner pipe (2) and extends downwards, and the other end of the sliding plate is abutted against the inner side of the outer pipe (1); the clamping block (33) rotates downwards to be clamped with the cover body (31), and the inner pipe (2) cannot move downwards; the clamping block (33) rotates upwards to be separated from the cover body (31), and the inner pipe (2) can move up and down.

2. A locking device as claimed in claim 1, wherein: the sliding block (37) is of a cylindrical structure and is connected through a small shaft (38).

3. The locking device of claim 1, further comprising: the long rod (34) is provided with a pressure spring (310) above the cover body (31).

4. The locking device of claim 1, further comprising: the sliding plate (35) is provided with a second long groove (351) with one end opened.

5. The locking device of claim 1, further comprising: and a cover cap (311) is arranged on the locking mechanism (3).

6. Locking device according to any of claims 1-5, characterized in that: the cover body (31) and the fixture block (33) are made of nylon.