Anti-roll jack

Abstract

The utility model discloses an anti-roll jack which comprises a base, a folding rod group and a widening plate, each folding rod group is formed by rotationally matching two groups of connecting rods by taking a tightening latch as a rotating shaft, the bottoms of the two folding rod groups are rotationally matched with the base by adopting a hinged support, and the tops of the two folding rod groups are rotationally matched with the top head; a transversely-arranged screw is in threaded fit with the tightening latch of one folding rod set and is in rotary limiting fit with the tightening latch of the other folding rod set, the two sides of the bottom of the base are each provided with two sets of strip-shaped grooves, the number of the connecting rods is four, and a sliding button is fixed to one end of each connecting rod. The sliding knob ends of the connecting rods are connected with the base in the mode that the sliding knobs are arranged in the strip-shaped grooves and matched with the strip-shaped grooves in a notch mode, and the other ends of the connecting rods on the same side are jointly and rotationally matched on a widened plate of a sheet-shaped structure. The jack has the advantages that lateral support of the jack is added, and the jack is convenient to store.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting equipment, and particularly relates to an anti-tilting jack. Background Art

[0002] The mechanical screw jack is a common type of jack. As a standard emergency tool for cars nowadays, it mainly consists of a screw and a jack head. When the screw is rotated, the jack head will generate a force to move up and down, thereby achieving the purpose of lifting. Mechanical jacks usually use the method of manually rotating the screw, and there are also some mechanical jacks that use electric or hydraulic drives. This type of jack is suitable for small lifting tasks and is relatively simple to operate; however, in order to facilitate storage behind the car, the existing jacks are usually designed with a slender base structure, which will result in too little lateral support for the jack. When the center of gravity of the supported object is biased, it is easy to tilt.

[0003] In order to solve the above problems, the solution of the prior art is: Chinese utility model patent with publication number CN214570367U discloses a jack with anti-dumping function, which belongs to the technical field of jacks with anti-dumping function. The jack with anti-dumping function includes a base plate, the upper surface of the base plate is fixedly connected with a fixing seat, the top of the side of the fixing seat is fixedly installed with a reinforcement rod, the bottom of the side of the fixing seat is fixedly installed with a reinforcement block, the upper surface of the fixing seat is provided with a rectangular groove, the bottom of the inner side wall of the rectangular groove is fixedly connected with a rotating column, the inner bottom wall of the rectangular groove is provided with a threaded groove, and the inner side wall of the threaded groove is threadedly connected with a base through bolts. The jack with anti-dumping function is used through the cooperation between the base plate, the fixing seat, the reinforcement block and the reinforcement rod.

[0004] The approach of the above-mentioned comparative document is to use a widened base plate to achieve lateral support for the jack, but this design increases the volume occupied by the jack to a certain extent and loses a lot of its storability. Therefore, the existing technology requires a jack that can both increase the lateral support of the jack and facilitate storage. Utility Model Content

[0005] The utility model aims to provide an anti-tilting jack to solve the problem of inconvenient storage in the above-mentioned background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A jack for preventing rollover, comprising: a base, a folding rod group, and a widened plate; the folding rod group is composed of two groups of connecting rods rotating together with a bolt rod as a rotating axis, the bottoms of the two folding rod groups are rotationally matched with a hinge seat and the base, and the tops of the two folding rod groups are rotationally matched with a head; a horizontally placed screw rod is threadedly matched with the bolt rod of one of the folding rod groups, and is rotationally limited with the bolt rod of the other folding rod group, two groups of strip grooves are respectively provided on both sides of the bottom of the base, the number of the connecting rods is four groups, a sliding button is fixed at one end of each group of connecting rods, the sliding button ends of the connecting rods are connected to the base in a manner that the sliding button is built into the strip groove and forms a notch with the strip groove, and the other ends of the connecting rods on the same side are rotationally matched together on the widened plate with a one-piece structure.

[0008] Furthermore, in order to ensure the stability of the jack during operation, the bottom surface of the widened plate and the bottom surface of the base are located in the same plane.

[0009] Furthermore, in order to facilitate storage and to enable the jack to be applicable to scenarios where an ordinary jack can be applied, the base is provided with a storage groove for accommodating two sets of widened plates.

[0010] Furthermore, in order to ensure that the widened plate can be accommodated in the storage groove without affecting the integrity of the base, the storage groove is a non-vertically through-going inner groove, and the widened plate is provided with a cutout to fit the storage groove to form a groove cut.

[0011] Furthermore, in order to prevent the sliding button from sliding out of the strip groove, an outwardly convex ring structure is provided in the middle of the sliding button to form an outer convex ring, and an annular groove for accommodating and limiting the outer convex ring is provided on the strip groove to form an annular groove.

[0012] Furthermore, in order to facilitate the rotation of the screw, a rotating head is fixed to the non-threaded end of the screw, and a connecting ring is provided on the rotating head for convenient connection with a wrench.

[0013] Furthermore, in order to enable the two folding rod groups to deflect synchronously during movement, meshing teeth are provided at the lower ends of the folding rod groups, and the meshing teeth at the lower ends of the two folding rod groups mesh with each other.

[0014] In summary, the utility model has the following beneficial effects:

[0015] ① Increased lateral support for the jack: By setting up a movable widening plate, the base of the jack is placed on the bottom surface, and the widening plates in the two storage slots are pulled by hand to make the two sets of widening plates move away from each other. At this time, the sliding button slides in the strip groove, and the sliding buttons on the same side move closer to each other, and then the widening plate widens the width of both sides of the jack base to prevent the jack from tipping.

[0016] ②Easy to store: By setting up a storage slot that can store the widened plate, after the jacking operation is completed, rotate the wrench in the opposite direction, and the wrench drives the screw to rotate in the opposite direction through the rotating head; the screw drives the folding rod assembly to fold back through the bolt rod, reducing the jacking head height to the minimum, and then push the widened plate to store it into the storage slot, saving the volume of the jack and facilitating the storage of the jack. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the bottom structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the sliding button in the utility model;

[0020] Figure 4 yes Figure 3 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 5 It is a schematic diagram of the use structure of the utility model;

[0022] Figure 6 It is a top schematic diagram of the storage state of the utility model;

[0023] Figure 7 It is a bottom schematic diagram of the storage state of the utility model;

[0024] In the figure, 1, base; 2, folding rod group; 3, bolt rod; 4, top head; 5, swivel head; 6, connecting rod; 7, widening plate; 8, sliding button; 9, screw rod; 11, strip groove; 12, storage groove; 13, ring groove; 21, meshing teeth; 71, groove cutting position; 81, outer convex ring. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] Example:

[0027] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0028] The folding rod group 2 is a kind of anti-roll jack, comprising: a base 1, a folding rod group 2, and a widening plate 7; the folding rod group 2 is composed of a bolt rod 3 as a rotating axis and two groups of connecting rods rotating together, the bottoms of the two groups of folding rod groups 2 are rotatably matched with the base 1 by a hinge seat, and the tops of the two groups of folding rod groups 2 are rotatably matched with the top head 4; a horizontally placed screw rod 9 is threadedly matched with the bolt rod 3 of one group of the folding rod groups 2, and is rotationally limitedly matched with the bolt rod 3 of the other group of the folding rod groups 2 (only rotational movement is allowed, and relative displacement movement is not allowed), two groups of strip grooves 11 are respectively provided on both sides of the bottom of the base 1, the number of the connecting rods 6 is four groups, and a sliding button 8 is fixed at one end of each group of connecting rods 6, and the sliding button 8 ends of the connecting rods 6 are respectively connected to the base 1 in a manner that the sliding button 8 is built into the strip groove 11 and forms a notch match with the strip groove 11, and the other ends of the connecting rods 6 on the same side are rotatably matched together on the widening plate 7 of a one-piece structure.

[0029] The bottom surface of the widening plate 7 and the bottom surface of the base 1 are located in the same plane.

[0030] The base 1 is provided with a receiving groove 12 for receiving the two sets of widened plates 7 .

[0031] The receiving groove 12 is a non-vertically through inner groove, and the widening plate 7 is provided with a cutout groove 71 for fitting into the receiving groove 12 .

[0032] The middle part of the slide button 8 is provided with an outwardly convex ring structure to form an outwardly convex ring 81 , and the strip groove 11 is provided with an annular groove to accommodate and limit the outwardly convex ring 81 to form an annular groove 13 .

[0033] A rotating head 5 is fixed to the non-threaded end of the screw rod 9 , and a connecting ring is provided on the rotating head 5 for convenient connection with a wrench.

[0034] The lower end of the folding rod set 2 is provided with meshing teeth, and the meshing teeth 21 at the lower ends of the two sets of folding rod sets 2 mesh with each other.

[0035] When in use, place the base 1 of the jack on the bottom surface, pull the widened plates 7 in the two receiving grooves 12 by hand, so that the two groups of widened plates 7 move away from each other, and then the sliding buttons 8 slide in the strip grooves 11, and the sliding buttons 8 on the same side move closer to each other (such as Figure 5When the jack is lifted up, the screw 9 is pushed back and the jack is lifted up, so that the jack can be lifted up and the lifting device can be easily adjusted.

[0036] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An anti-roll jack, comprising: A base (1), a folding rod group (2), and a widening plate (7); the characteristics are that: the folding rod group (2) is composed of two groups of connecting rods rotating together with the bolt rod (3) as the rotation axis, the bottoms of the two groups of folding rod groups (2) are rotatably matched with the base (1) by a hinge seat, and the tops of the two groups of folding rod groups (2) are rotatably matched with the top head (4); a horizontally placed screw rod (9) is threadedly matched with the bolt rod (3) of one group of folding rod groups (2) and the bolt rod (3) of the other group of folding rod groups (2) Rotationally limited, two groups of strip grooves (11) are respectively provided on both sides of the bottom of the base (1), the number of the connecting rods (6) is four, one end of each group of connecting rods (6) is fixed with a sliding button (8), the sliding button (8) end of the connecting rod (6) is respectively connected to the base (1) in a manner that the sliding button (8) is built into the strip groove (11) and the strip groove (11) forms a notch, and the other end of the connecting rod (6) on the same side is rotatably matched together on a widened plate (7) of a one-piece structure.

2. The anti-roll jack according to claim 1, characterized in that: The bottom surface of the widening plate (7) and the bottom surface of the base (1) are located in the same plane.

3. The anti-roll jack according to claim 1, characterized in that: The base (1) is provided with a storage groove (12) for storing two sets of widened plates (7).

4. The anti-roll jack according to claim 3, characterized in that: The receiving groove (12) is a non-vertically through-going inner groove, and the widening plate (7) is provided with a groove cutout (71) for fitting the receiving groove (12).

5. The anti-roll jack according to claim 1, characterized in that: The middle part of the sliding button (8) is provided with an outwardly convex ring structure to form an outer convex ring (81), and the strip groove (11) is provided with an annular groove to accommodate the outer convex ring (81) and limit the outer convex ring (81) to form an annular groove (13).

6. The anti-roll jack according to claim 1, characterized in that: A rotating head (5) is fixed to the non-threaded end of the screw rod (9), and a connecting ring for convenient connection with a wrench is provided on the rotating head (5).

7. The anti-roll jack according to claim 1, characterized in that: The lower end of the folding rod group (2) is provided with meshing teeth, and the meshing teeth (21) at the lower ends of the two groups of folding rod groups (2) mesh with each other.

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