CN216764157U

CN216764157U - Positioning device of scissor jack

Info

Publication number: CN216764157U
Application number: CN202122979126.6U
Authority: CN
Inventors: 韩忠坤
Original assignee: Qingdao Tongshunfa Metal Products Co ltd
Current assignee: Qingdao Tongshunfa Metal Products Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-17
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a positioning device of a scissor jack, which comprises a base, wherein the upper end of the base is rotationally connected with two first connecting rods which are symmetrically arranged, one ends of the first connecting rods, which are far away from the base, are rotationally connected with a moving block, the rear side wall of the moving block is rotationally connected with second connecting rods, one ends of the two second connecting rods, which are far away from the moving block, are jointly and fixedly connected with a supporting plate, a first cavity is arranged in the supporting plate, a moving groove is formed between the first cavity and the supporting plate, two moving plates which are symmetrically arranged are slidably connected in the moving groove, and a moving mechanism for moving the two moving plates is arranged in the first cavity. According to the utility model, the object to be jacked is fixed between the two movable plates by the two movable plates, so that jacking position deviation is avoided, and the movable plates are squeezed by rotating the cam to drive the sucker to move downwards to contact with the ground, so that the stability of the device is improved, and the occurrence of slipping is reduced.

Description

Positioning device of scissor jack

Technical Field

The utility model relates to the technical field of jacks, in particular to a positioning device of a scissor jack.

Background

The scissor jack is a hoisting apparatus, mainly used for jacking and supporting cars with small tonnage, such as cars. The common specifications include 1T (ton), 1.5T (ton), 2T (ton), 3T (ton), etc. The scissor jack is also called a bracket jack, is light and fast to use, and is a vehicle-mounted product in various automobile factories in China. The device consists of an upper support rod and a lower support rod which are made of metal plates, and the working principles are different. The cross section of the upper support rod and the cross section of the lower support rod at the tooth part and the part near the tooth part are rectangles with one side opened, and metal plates at two sides of the opening are bent inwards. The teeth on the upper support rod and the lower support rod are made of metal plates with bent two sides of the opening, and the tooth width is larger than the thickness of the metal plates.

The upper end of the scissor jack in the prior art is in direct contact with an article, a fixing mechanism for positioning the article to be jacked is not arranged, so that the jacking position is possibly inconsistent with the original position, a certain trouble is caused to workers, and the base of the scissor jack is generally directly placed on the ground, so that the phenomenon that the base and the ground slide due to the fact that the base is pressed by gravity when the jack is lifted can occur, the position of the jack is shifted, and potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a positioning device of a scissor jack.

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

a positioning device of a scissor jack comprises a base, wherein the upper end of the base is rotatably connected with two first connecting rods which are symmetrically arranged, one end of each first connecting rod, which is far away from the base, is rotatably connected with a moving block, the rear side wall of each moving block is rotatably connected with a second connecting rod, one ends of the two second connecting rods, which are far away from the moving blocks, are jointly and fixedly connected with a supporting plate, a first cavity is arranged in each supporting plate, a moving groove is formed between each first cavity and the corresponding supporting plate, two moving plates which are symmetrically arranged are slidably connected in each moving groove, a moving mechanism for moving the two moving plates is arranged in each first cavity, a second cavity is arranged in the base, two symmetrically arranged through grooves are formed between each second cavity and the lower end face of the base, and a stabilizing mechanism for stabilizing the base is arranged in each through groove, and a driving mechanism for driving the stabilizing mechanism is arranged in the second chamber.

Preferably, moving mechanism includes that one end rotates the first double-threaded screw of connection on first cavity inner wall, the right side end of first double-threaded screw runs through the right side lateral wall and the fixedly connected with handle of rotating first cavity and backup pad, two movable plates are run through respectively and rather than threaded connection at the both ends of first double-threaded screw.

Preferably, the stabilizing mechanism comprises sliding grooves formed in side walls of two sides of the through groove, sliding rods and sliding plates are connected in the sliding grooves in a sliding mode, sliding plates are connected between the sliding rods in a sliding mode, a connecting rod is fixedly connected to the lower end face of each sliding plate, and a sucking disc is fixedly connected to the tail ends of the connecting rods.

Preferably, actuating mechanism is including rotating the dwang of connection in the second cavity, the cam that two symmetries of fixedly connected with set up on the outer wall of dwang, the up end sliding connection of the least significant end of cam and slide.

Preferably, a second double-threaded screw rod penetrates through the two moving blocks in a threaded connection mode, a rotating ring is fixedly connected to the right end of the first double-threaded screw rod, belt pulleys are fixedly connected to the outer wall of the second double-threaded screw rod and the outer wall of the rotating rod, the two belt pulleys are connected through a belt in a transmission mode, a through hole is formed between the upper end face of the base and the second cavity, and the belt penetrates through the through hole.

Preferably, the sliding plate is located between the upper end and the lower end of the two sliding grooves and elastically connected with the sliding grooves through springs, and the springs are sleeved on the outer wall of the sliding rod.

The utility model has the beneficial effects that:

1. through setting up moving mechanism, make it take first stud to rotate through twisting the handle, under the cooperation between rethread first stud and two movable plates, make two movable plates remove in the shifting chute to make two movable plates will treat that the jacking thing is fixed between two movable plates, avoid appearing jacking offset.

2. Through setting up firm mechanism and actuating mechanism, make the rotation of second double-end screw rod through twisting the swivel becket, under the transmission of two belt pulleys, make the dwang rotate to make the cam rotate the extrusion movable plate and take the sucking disc to move down and contact with ground, improve the stability of this device, the condition that the reduction was skidded takes place.

Drawings

FIG. 1 is a schematic front view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the base of the present invention;

fig. 3 is an enlarged view of the structure at a in fig. 2 according to the present invention.

In the figure: the automatic belt conveyor comprises a base 1, a first connecting rod 2, a rotating ring 3, a moving block 4, a second connecting rod 5, a second double-headed screw 6, a belt pulley 7, a supporting plate 8, a first cavity 9, a first double-headed screw 10, a moving groove 11, a moving plate 12, a through hole 13, a second cavity 14, a rotating rod 15, a cam 16, a through groove 17, a sliding groove 18, a sliding rod 19, a sliding plate 20, a connecting rod 21 and a sucker 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, a positioning device of a scissor jack comprises a base 1, two first connecting rods 2 symmetrically arranged are rotatably connected to the upper end of the base 1, a moving block 4 is rotatably connected to one end of each first connecting rod 2 far away from the base 1, a second connecting rod 5 is rotatably connected to the rear side wall of the moving block 4, a supporting plate 8 is fixedly connected to one end of each second connecting rod 5 far away from the moving block 4, a first cavity 9 is formed in the supporting plate 8, a moving groove 11 is formed between the first cavity 9 and the supporting plate 8, two moving plates 12 symmetrically arranged are slidably connected in the moving groove 11, a moving mechanism for moving the two moving plates 12 is arranged in the first cavity 9, the moving mechanism comprises a first double-head screw 10 with one end rotatably connected to the inner wall of the first cavity 9, the right end of the first double-head screw 10 penetrates through and rotates the right side walls of the first cavity 9 and the supporting plate 8 and is fixedly connected with a handle, the two ends of the first double-threaded screw 10 respectively penetrate through the two moving plates 12 and are in threaded connection with the two moving plates 12, so that the two moving plates 12 move in the moving groove 11, an object to be jacked is fixed between the two moving plates 12 by the two moving plates 12, and jacking position deviation is avoided.

Set up second cavity 14 in the base 1, set up the logical groove 17 that two symmetries set up between the lower terminal surface of second cavity 14 and base 1, it is used for carrying out the firm mechanism that stabilizes to base 1 to lead to the inslot to be equipped with, firm mechanism is including seting up the spout 18 on leading to groove 17 both sides lateral wall, sliding connection has slide bar 19 in the spout 18, sliding connection has slide 20 between two slide bar 19, slide 20's lower terminal surface fixedly connected with connecting rod 21, the terminal fixedly connected with sucking disc 22 of connecting rod 21.

Be equipped with in the second cavity 14 and be used for carrying out driven actuating mechanism to firm mechanism, actuating mechanism is including rotating the dwang 15 of connecting in the second cavity 14, the cam 16 that two symmetries of fixedly connected with set up on the outer wall of dwang 15, the least significant end of cam 16 and slide 20's up end sliding connection, through making cam 16 rotate extrusion slide 20 and take sucking disc 22 to move down with ground contact, improve the stability of this device, the condition that the reduction was skidded takes place.

Run through threaded connection and have second stud 6 between two movable blocks 4, the terminal fixedly connected with swivel becket 3 in right side of second stud 6, equal fixedly connected with belt pulley 7 on the outer wall of second stud 6 and the outer wall of dwang 15, connect through belt transmission between two belt pulleys 7, be equipped with through-hole 13 between the up end of base 1 and the second cavity 14, the belt passes in the through-hole 13, rotate second stud 6, when making backup pad 8 rise, make dwang 15 rotate, thereby make sucking disc 22 and ground contact, reach a plurality of purposes.

The sliding plate 20 is located between the upper and lower ends of the two sliding grooves 18 and elastically connected with the sliding grooves 18 through springs, the springs are sleeved on the outer wall of the sliding rod 19, when the second stud 6 is reversely rotated, the lowest end of the cam 16 is far away from the sliding plate 20, and the sliding plate 20 with the suction cup 22 is quickly returned to the original position under the action of the springs.

When the lifting device is used, the lifting device is placed under an object to be lifted, the rotating ring 3 is rotated to enable the second stud 6 to rotate, so that the moving blocks 4 on the outer walls of the two ends of the second stud move towards the middle, the supporting plate 8 is lifted to be in contact with the object to be lifted through the rotating connection of the first connecting rod 2, the second connecting rod 5 and the moving blocks 4, when the supporting plate 8 is in contact with the object to be lifted, the rotating rod 15 is rotated under the transmission action of the two belt pulleys 7, so that the sliding plate 20 is extruded by the lowest end of the two cams 16 to move downwards, the sucking disc 22 at the lower end of the sliding plate is in contact with the ground, the lifting of the lifting device is more stable through the suction force of the sucking disc 22, the handle is rotated to drive the first stud 10 to rotate, the two moving plates 12 are drawn close to the middle, the object to be lifted is clamped between the two moving plates 12, and the lifting position deviation is avoided.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The positioning device of the scissor jack comprises a base (1) and is characterized in that the upper end of the base (1) is rotatably connected with two first connecting rods (2) which are symmetrically arranged, one ends of the first connecting rods (2) far away from the base (1) are rotatably connected with a movable block (4), the rear side wall of the movable block (4) is rotatably connected with a second connecting rod (5), one ends of the two second connecting rods (5) far away from the movable block (4) are fixedly connected with a supporting plate (8) together, a first cavity (9) is arranged in the supporting plate (8), a movable groove (11) is formed between the first cavity (9) and the supporting plate (8), two movable plates (12) which are symmetrically arranged are connected in the movable groove (11) in a sliding manner, and a moving mechanism for moving the two movable plates (12) is arranged in the first cavity (9), the improved structure of the automobile seat is characterized in that a second cavity (14) is formed in the base (1), two through grooves (17) symmetrically arranged are formed between the lower end face of the second cavity (14) and the lower end face of the base (1), a stabilizing mechanism used for stabilizing the base (1) is arranged in each through groove (17), and a driving mechanism used for driving the stabilizing mechanism is arranged in the second cavity (14).

2. The positioning device of a scissor jack according to claim 1, wherein the moving mechanism comprises a first double-threaded screw (10) with one end rotatably connected to the inner wall of the first chamber (9), the right end of the first double-threaded screw (10) penetrates through the rotating first chamber (9) and the right side wall of the support plate (8) and is fixedly connected with a handle, and the two ends of the first double-threaded screw (10) respectively penetrate through and are in threaded connection with the two moving plates (12).

3. A scissor jack positioning device according to claim 2, wherein the securing mechanism comprises sliding grooves (18) formed in the side walls of the through groove (17), sliding rods (19) are slidably connected in the sliding grooves (18), a sliding plate (20) is slidably connected between the two sliding rods (19), a connecting rod (21) is fixedly connected to the lower end surface of the sliding plate (20), and a suction cup (22) is fixedly connected to the end of the connecting rod (21).

4. A scissor jack positioning device according to claim 3, wherein the driving mechanism comprises a rotating rod (15) rotatably connected in the second chamber (14), two symmetrically arranged cams (16) are fixedly connected to the outer wall of the rotating rod (15), and the lowest end of the cams (16) is slidably connected to the upper end surface of the sliding plate (20).

5. The scissor jack positioning device according to claim 4, wherein a second double-threaded screw (6) is connected between the two moving blocks (4) in a penetrating manner, a rotating ring (3) is fixedly connected to the right end of the second double-threaded screw (6), belt pulleys (7) are fixedly connected to the outer wall of the second double-threaded screw (6) and the outer wall of the rotating rod (15), the two belt pulleys (7) are connected through a belt in a transmission manner, a through hole (13) is formed between the upper end face of the base (1) and the second chamber (14), and the belt passes through the through hole (13).

6. A scissor jack positioning device according to claim 5, wherein the slides (20) are resiliently connected to the runners (18) at the upper and lower ends of the two runners (18) by springs which are fitted over the outer wall of the slide rod (19).