CN113749389A

CN113749389A - Manual lifting table with locking function

Info

Publication number: CN113749389A
Application number: CN202111037861.3A
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: 2021-12-07
Anticipated expiration: 2041-09-06
Also published as: CN113749389B

Abstract

The invention relates to the technical field of lifting tables, in particular to a manual lifting table with a locking function. In the existing manual lifting table, the common lifting is carried out by fastening bolt standard parts, the lifting is troublesome, corresponding parts are easy to damage due to thread damage, the structure is not stable, and the service life is short. The manual lifting table with a complex structure has high cost and wastes time and labor in adjustment and maintenance. A manual lifting table with a lock comprises bottom plates on two sides, wherein a first outer pipe, a first inner pipe, a second outer pipe and a second inner pipe are respectively arranged on the bottom plates on the two sides, and a locking and fixing clamping mechanism is respectively arranged between the first outer pipe and the first inner pipe and between the second outer pipe and the second inner pipe; a locking mechanism for preventing the second inner pipe from moving downwards is arranged between the second outer pipe and the second inner pipe. The invention has simple and reasonable structure, adopts a double locking mode, can lift the inner pipe without a power supply, has wide use range and has stable and reliable structure.

Description

Manual lifting table with locking function

Technical Field

The invention relates to the technical field of lifting tables, in particular to a manual lifting table with a locking function.

Background

In the society of today, people focus on healthy more and more, and the desk becomes height-adjustable's lift table by the unchangeable desk of height, by original sitting posture official working, has become the combined type official working of standing and sitting, has avoided greatly because of all kinds of diseases that influence healthy that sit for a long time and arouse, and can also improve work efficiency. The existing lifting table is basically an electric lifting table with a motor and a gear box, and the electric lifting table cannot be lifted in special working environments under the environment with a power supply. In order to meet different requirements of people, the manual lifting table occupies certain market share, and in the conventional manual lifting table, common lifting is carried out by fastening standard parts such as bolts, so that the lifting is complicated, corresponding parts are easily damaged due to thread damage, the structure is not stable, and the service life is short. The manual lifting table with a complex structure has high cost and wastes time and labor in adjustment and maintenance.

Disclosure of Invention

The invention aims to provide a manual lifting table with locking function, which is convenient and quick to lock and low in cost, aiming at the defects of the prior art.

A manual lifting table with a lock comprises bottom plates on two sides, wherein a first outer pipe, a first inner pipe, a second outer pipe and a second inner pipe are respectively arranged on the bottom plates on the two sides, and a locking and fixing clamping mechanism is respectively arranged between the first outer pipe and the first inner pipe and between the second outer pipe and the second inner pipe; a locking mechanism for preventing the second inner pipe from moving downwards is arranged between the second outer pipe and the second inner pipe. The invention has simple and reasonable structure, adopts a double locking mode, can lift the inner pipe without a power supply, has wide use range and has stable and reliable structure.

As a further improvement and complement to the above solution, the present invention also includes the following additional technical features:

the clamping mechanism comprises a clamping seat, a connecting shaft and a handle; the handle comprises a cam part, a round hole and a handle, the round hole is formed in the cam part, the round hole is formed in the side edge of the cam part, the round hole rotates inwards to extrude a clamping block with one end suspended in the air on the clamping seat inwards, the first inner tube and the second inner tube are locked, the round hole rotates outwards to release the clamping seat, and the first inner tube and the second inner tube are in a release state. The invention has reasonable structure, low cost, convenient locking and opening, wide application range and capability of lifting the inner tube without a power supply.

The locking mechanism comprises a cover body, a clamping block, a long rod, a sliding plate and a pulley, wherein 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 rotatably 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 pulley is arranged below the long rod, the pulley abuts against the sliding plate, and the sliding plate is connected with the axes of the second outer pipe and the second inner pipe in an inclined angle mode; one end of the sliding plate is arranged on the second inner pipe and extends downwards, and the other end of the sliding plate is abutted against the inner side of the second outer pipe; the fixture block rotates downwards to be clamped with the cover body, and the second inner pipe cannot move downwards; the clamping block rotates upwards to be separated from the cover body, and the second inner pipe can move up and down. The invention has reasonable structure, long service life and convenient and quick locking.

The long rod is provided with a pressure spring above the cover body, and the pressure spring is sleeved in a sliding sleeve of the second inner pipe. 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. Cover whole locking mechanism and close, effectively protected, and can stimulate the stock from top to bottom, the pulling is convenient.

A cross rod is arranged between the two first inner tubes, and sleeves are respectively sleeved on the two inner sides of the cross rod. The reinforcement is carried out, and the detachable connection can be realized.

A first reinforcing rod is arranged between the first inner pipe and the second inner pipe, and a second reinforcing rod is arranged between the first outer pipe and the second outer pipe; a first reinforcing plate is arranged between the first outer pipe and the second outer pipe. Further reinforced and has high strength.

The clamping seat, the handle, the cover body and the clamping block are made of nylon. Wear resistance, long service life and low cost.

The bottom plate below be equipped with skid-proof adjusting pad, be equipped with the second reinforcing plate between bottom plate and first outer tube, the second outer tube. Further, the lifting table is reinforced, the strength is good, the lifting table can be adjusted horizontally, and the lifting table can be prevented from sliding.

The invention can achieve the following beneficial effects: the invention has the advantages of reasonable structure, high practicability, good strength, good stability and low cost. The service life is long, the locking and the opening are convenient, the lifting of the inner pipe can be carried out without a power supply, and the application range is wide. Roll through the pulley, break away from and support and lean on convenient and fast, move down through block pulling stock, the slide supports all the time and leans on inboard at the outer tube, locks, and the pressure spring produces the power of drawing the stock up simultaneously, locks. The double locking protection, locking convenient and fast just adjust the convenience.

Drawings

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

Fig. 2 is a front view of the present invention.

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

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

Fig. 5 is a bottom view of the present invention.

Fig. 6 is a schematic structural view of the engaging mechanism 4 of the present invention.

Fig. 7 is a schematic structural view of the engaging seat 41 of the engaging mechanism 4 of the present invention.

Fig. 8 is a schematic view of the structure of the handle 43 in the engaging mechanism 4 of the present invention.

Fig. 9 is a schematic view of the locking mechanism 8 of the present invention.

Fig. 10 is a front view of the locking mechanism 8 of the present invention.

Fig. 11 is a schematic view of the structure of the slide plate 85 in the lock mechanism 8 of the present invention.

Fig. 12 is a schematic structural view of the latch 83 in the locking mechanism 8 according to the present invention.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

As shown in fig. 1-12, the present invention is a manual lifting table with a lock.

This embodiment manual lift table of area locking, including the bottom plate 1 of both sides, be equipped with horizontal pull rod 2 between two bottom plates 1, connect the enhancement, and 1 both ends of bottom plate are equipped with stifle 16, prevent that the dust from getting into inside, protect. The bottom plates 1 on the two sides are respectively provided with a first outer tube 3, a first inner tube 5, a second outer tube 10 and a second inner tube 9, and the first inner tube 5 and the second inner tube 9 are provided with supporting plates 6 for fixing the table plate. The clamping mechanisms 4 for locking and fixing are respectively arranged between the first outer pipe 3 and the first inner pipe 5, and between the second outer pipe 10 and the second inner pipe 9; a locking mechanism 8 for preventing the second inner pipe 9 from moving downwards is arranged between the second outer pipe 10 and the second inner pipe 9.

Further, the clamping mechanism 4 comprises a clamping seat 41, a connecting shaft 42 and a handle 43; the main body of the engaging seat 41 is a hollow cylinder, an arc-shaped boss 411 is provided on the outer side of the cylinder, a block 412 is provided on the circumferential surface of the cylinder, annular grooves 413 connected with the inner hole are provided on the upper and lower sides of the block 412, one end of the block 412 is suspended, the upper part of the engaging seat 31 is connected with the first inner tube 5 or the second inner tube 9, and the lower part is connected with the first outer tube 3 or the second outer tube 10. The middle of the block 412 is provided with a square 4121 with one side being a plane, and the suspended end of the block 412 is provided with a vertical bar 4122 for reinforcement. The arc-shaped boss 411 is provided with a through hole, a connecting shaft 42 is arranged on the through hole, a cap is arranged at one end of the connecting shaft 42, and the handle 43 is sleeved on the connecting shaft 42. The handle 43 comprises a cam part 431, a round hole 432 and a handle 433, the round hole 432 is arranged on the cam part 431, the round hole 432 is arranged at the side of the cam part 431, the distances between the round hole 432 and the two sides of the cam part 431 are not consistent, the distance from the outer side is smaller than the distance from the inner side, the inwards rotating block 412 suspending one end of the clamping seat 41 is inwards extruded and abuts against a block 4121, the inner diameter of the clamping seat 41 is reduced, the first inner tube 5 and the second inner tube 9 are locked, the clamping seat 41 is loosened by outwards rotating, the clamping block 412 is reset, and the first inner tube 5 and the second inner tube 9 are in a loosening state.

Further, the locking mechanism 8 comprises a cover 81, a clamping block 83, a long rod 84, a sliding plate 85 and a pulley 87, the inner side of the cover 81 is of an arc-shaped structure and is attached and fixed on the second inner tube 9, a circumferential surface of the second inner tube 9 is provided with a circumferential square groove communicated with the inner hole, and the lower side of the cover is provided with two counter bores symmetrically arranged with the square groove. The long rod 84 is fixedly provided with a blocking piece 841, and the blocking piece 841 is of a circular sheet structure. The latch 83 passes through the cover 81 and is located in the square groove of the second inner tube 9, and the lower side surface of the latch 83 is attached to the blocking piece 841. The fixture block 83 is rotatably connected with the cover 81 through the pin 82, the long rod 84 penetrates through a first long groove of the fixture block 83, the long rod 84 penetrates through the sliding plate 85 downwards, a pulley 87 is arranged below the long rod 84 and connected through a small shaft 88, a frame-shaped fixing block 89 is arranged on the long rod 84, the small shaft 88 penetrates through the pulley 87, and two ends of the small shaft 88 are fixed on the fixing block 89. The pulley 87 is abutted against the sliding plate 85, and the sliding plate 85 is connected with the axes of the second outer pipe 10 and the second inner pipe 9 at an oblique angle; one end of the slide plate 85 is arranged on the second inner tube 9, is riveted on two counter bores of the second inner tube 9 through rivets 86 and extends downwards, and the other end abuts against the inner side of the second outer tube 10. The latch 83 rotates downwards to be engaged with the cover 81, and the second inner tube 9 cannot move downwards; the latch 83 rotates upward to be separated from the cover 81, and the second inner tube 9 can move up and down.

Further, a compression spring 810 is arranged above the cover 81 of the long rod 84, and the compression spring 810 is sleeved on the sliding sleeve 17 in the second inner tube 9.

Furthermore, the sliding plate 85 is provided with a second elongated slot 851 with an opening at one end, and the two sides of the sliding plate 85 are provided with folded edges 852 for structure reinforcement.

Further, the locking mechanism 8 is provided with a cap 811, and the long rod 84 is fixed in the cap 811 through a nut 19 and a washer 18, and moves up and down the long rod 84.

Further, the two first inner tubes 5 are provided with cross rods 7 therebetween, the number of the cross rods 7 is 2, the cross rods are located on the upper sides of the two first inner tubes 5, sleeves 20 are respectively sleeved on the two inner sides of the cross rods 7, and the two first inner tubes 5 are fastened by the sleeves 20.

Furthermore, a first reinforcing rod 11 is arranged between the first inner pipe 5 and the second inner pipe 9, and a second reinforcing rod 12 is arranged between the first outer pipe 3 and the second outer pipe 10; a first reinforcing plate 13 is provided between the first outer tube 3 and the second outer tube 10. The second reinforcing bar 12 is provided at an upper side position of the first outer tube 3 and the second outer tube 10, and the first reinforcing plate 13 is a plate-like structure connected obliquely upward and shaped like a rhombus.

Furthermore, the materials of the engaging seat 41, the handle 43, the cover 81 and the latch 83 are nylon.

Furthermore, anti-skid adjusting pads 15 are arranged below the bottom plate 1, 2 adjusting pads 15 are arranged below each bottom plate 1, and a second reinforcing plate 14 is arranged between the bottom plate 1 and the first outer tube 3 and between the bottom plate and the second outer tube 10. The second reinforcing plate 14 is sleeved on the bottom plate 1.

When the manual lifting table with the locking function is used, when the height needs to be adjusted, the handles 43 are rotated outwards, the first outer pipe 3, the first inner pipe 5, the second outer pipe 10 and the second inner pipe 9 are in a loosening state, the positions are adjusted, and the handles 43 are rotated inwards by 90 degrees to be locked.

When the latch 83 rotates downward to engage with the cover 81, the slide plate 85 abuts against the inner side of the second outer tube 10, and the pressing spring 810 presses upward to move the long rod 84 upward, so that the long rod 84 cannot move downward, i.e., the second inner tube 9 cannot move downward. The latch 83 rotates upward to be separated from the cover 81, and the second inner tube 9 can move up and down.

The above is the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and variations and modifications made by those skilled in the art according to the design concept of the present invention should be considered to be within the scope of the present invention.

Claims

1. The utility model provides a manual lift table of area locking, includes bottom plate (1) of both sides, bottom plate (1) of both sides on, be equipped with first outer tube (3), first inner tube (5), second outer tube (10) and second inner tube (9) respectively, its characterized in that: clamping mechanisms (4) which are locked and fixed are respectively arranged between the first outer pipe (3) and the first inner pipe (5) and between the second outer pipe (10) and the second inner pipe (9); a locking mechanism (8) for preventing the second inner pipe (9) from moving downwards is arranged between the second outer pipe (10) and the second inner pipe (9).

2. The locked manual lifting table of claim 1, wherein: the clamping mechanism (4) comprises a clamping seat (41), a connecting shaft (42) and a handle (43); handle (43) include cam portion (431), round hole (432) and handle (433), round hole (432) are established on cam portion (431), and round hole (432) are established at cam portion (431) avris, rotate inwards and inwards push away fixture block (412) that the one end was unsettled on with clamping seat (41), lock first inner tube (5) and second inner tube (9), rotate outwards, then loosen clamping seat (41), first inner tube (5) and second inner tube (9) are in the unclamped state.

3. A manual lifting table with latch according to claim 2 wherein: the locking mechanism (8) comprises a cover body (81), a clamping block (83), a long rod (84), a sliding plate (85) and a pulley (87), wherein a blocking piece (841) is fixedly arranged on the long rod (84), and the lower side surface of the clamping block (83) is attached to the blocking piece (841); the clamping block (83) is rotatably connected with the cover body (81) through a pin shaft (82), the long rod (84) penetrates through a first long groove of the clamping block (83), the long rod (84) downwards penetrates through the sliding plate (85), a pulley (87) is arranged below the sliding plate, the pulley (87) abuts against the sliding plate (85), and the sliding plate (85) is connected with the axes of the second outer pipe (10) and the second inner pipe (9) in an inclined angle; one end of the sliding plate (85) is arranged on the second inner pipe (9) and extends downwards, and the other end of the sliding plate abuts against the inner side of the second outer pipe (10); the clamping block (83) rotates downwards to be clamped with the cover body (81), and the second inner pipe (9) cannot move downwards; the clamping block (83) rotates upwards to be separated from the cover body (81), and the second inner pipe (9) can move up and down.

4. A locking manual lifting table according to claim 3 wherein: the long rod (84) is provided with a pressure spring (810) above the cover body (81), and the pressure spring (810) is sleeved in a sliding sleeve (17) of the second inner pipe (9).

5. A locking manual lifting table according to claim 3 wherein: the sliding plate (85) is provided with a second long groove (851) with an opening at one end.

6. A locking manual lifting table according to claim 3 wherein: and a cover cap (811) is arranged on the locking mechanism (8).

7. The locked manual lifting table of claim 1, wherein: a cross rod (7) is arranged between the two first inner tubes (5), and sleeves (20) are respectively sleeved on the two inner sides of the cross rod (7).

8. The locked manual lifting table of claim 1, wherein: a first reinforcing rod (11) is arranged between the first inner pipe (5) and the second inner pipe (9), and a second reinforcing rod (12) is arranged between the first outer pipe (3) and the second outer pipe (10); a first reinforcing plate (13) is arranged between the first outer pipe (3) and the second outer pipe (10).

9. A locking manual lifting table according to claim 3 wherein: the clamping seat (41), the handle (43), the cover body (81) and the clamping block (83) are made of nylon.

10. A locking manual lifting table according to any one of claims 1 to 9 wherein: the anti-skid adjusting pad (15) is arranged below the bottom plate (1), and a second reinforcing plate (14) is arranged between the bottom plate (1) and the first outer tube (3) and between the bottom plate and the second outer tube (10).