A jack stabilizing device
Through innovative design of the support mechanism and anti-tipping components, the jack stabilization device achieves flexible adaptation and self-adaptive support, solving the problems of insufficient stability and unstable lifting of existing devices, and improving the stability and reliability of the jack.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI ZHUANG AUTONOMOUS REGION INST OF METROLOGY & TESTING
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-30
Smart Images

Figure CN224430118U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of jack technology, specifically to a jack stabilizing device. Background Technology
[0002] Jacks are a common type of lifting equipment, widely used in car repair, heavy object support and other scenarios. However, some jack stabilizing devices on the market have relatively simple structures, limited stabilizing effects, and are inconvenient to adjust, failing to meet the needs of different terrains and jacks of different specifications.
[0003] For example, a tilt-prevention jack with Chinese patent number CN202420265203.2 includes: a base, a folding rod assembly, and a widening plate; the folding rod assembly is composed of a bolt rod as the pivot and two sets of connecting rods rotating in cooperation; the bottom of the two folding rod assemblies is connected to the base via hinges, and the tops of the two folding rod assemblies are connected to the top head; a horizontally placed screw rod is threaded into the bolt rod of one folding rod assembly and rotates to limit the bolt rod of the other folding rod assembly; two sets of strip grooves are provided on each side of the bottom of the base; the connecting rods... The number of links is four, and each link has a sliding button fixed at one end. The sliding button end of the link is connected to the base by means of the sliding button being built into the strip groove and the strip groove forming a groove fit. The other end of the link on the same side rotates together and fits on the widened plate of the one-piece structure. The beneficial effect is that it increases the lateral support of the jack and facilitates the storage of the jack. In actual use, although the patent increases the lateral support through the folding rod group, the jack body still has no auxiliary support, which leads to the jack still being unstable in lifting. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides a jack stabilizing device with the advantage of strong stability, which solves the problem of unstable lifting in the patent.
[0005] To achieve the aforementioned goal of high stability, this utility model provides the following technical solution: a jack stabilizing device, comprising a base, a support mechanism, an anti-tipping component, and a jack body. The base is provided with a support mechanism, and anti-tipping components are provided on both the front and rear sides of the base. The support mechanism is provided with a jack body connected to the top of the base.
[0006] The support mechanism includes slots. Two slots are formed on the base. A set of bearings is fixedly installed inside each of the two slots. A bidirectional threaded rod extending to the outside of the right side of the base is fixedly connected to the inner wall of the two sets of bearings. A handwheel is provided at one end of the bidirectional threaded rod extending to the outside of the right side of the base. Two movable blocks are threadedly connected to the outer wall of the bidirectional threaded rod. A limit guide plate is provided at the bottom of each of the two movable blocks. A support block is fixedly connected to the top of each of the two movable blocks. A rotating hinge seat is provided at the top of each of the two support blocks. A fixed plate connected to the jack body is fixedly connected to the end of the rotating hinge seat away from the support block.
[0007] Furthermore, each group contains two bearings.
[0008] Furthermore, both of the inner bottom walls of the slots are provided with guide grooves that are adapted to the limiting guide plates, and the two are in a sliding connection relationship.
[0009] Furthermore, the fixing plate is provided with fixing bolts, and the left and right sides of the jack body are provided with several connection holes that are compatible with the fixing bolts.
[0010] Furthermore, both of the aforementioned anti-rollover components consist of a trapezoidal plate and two plugs. The base has two insertion holes on both the front and rear sides that are compatible with the plugs, and the two are in a plug-in relationship.
[0011] Furthermore, both the trapezoidal plate and the plug are rigid components.
[0012] Furthermore, the bottom of each trapezoidal plate is covered with an anti-slip layer, and the surface of the anti-slip layer has an anti-slip texture structure.
[0013] Furthermore, both trapezoidal plates have a 45° sloping blocking structure on the side away from the base.
[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0015] 1. This jack stabilizing device, through a support mechanism, firstly utilizes a combination of a bidirectional threaded rod and movable blocks. When the handwheel is turned, the bidirectional threaded rod synchronously drives the movable blocks on both sides to move towards or away from each other, allowing for flexible adjustment of the distance between the two support blocks. This design can adapt to jack bodies of different widths, improving the device's versatility and avoiding support incompatibility issues caused by differences in jack size. Then, a limiting guide plate constrains the movement direction of the movable blocks, preventing them from deflecting or tilting during the rotation of the bidirectional threaded rod. This design ensures that the movable blocks always move in a straight line, making the position adjustment of the support blocks more precise. Simultaneously, it prevents support failure due to the wobbling of the movable blocks during support, enhancing structural stability. Finally, the support blocks are connected to a rotating hinge seat, allowing the support blocks to rotate slightly around the hinge point. This design allows the support blocks to adaptively adjust their posture according to the tilt angle of the jack body or the shape of the support surface, better conforming to the support parts of the jack, reducing local stress concentration, and improving the reliability of the support. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a front sectional view of the structure of this utility model;
[0018] Figure 3 For practical purposes Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This is a schematic diagram of the anti-rollover component of this utility model.
[0020] In the diagram: 1. Base; 2. Support mechanism; 201. Slot; 202. Bearing; 203. Two-way threaded rod; 204. Handwheel; 205. Movable block; 206. Limiting guide plate; 207. Support block; 208. Rotating hinge seat; 209. Fixing plate; 3. Anti-rollover assembly; 301. Trapezoidal plate; 302. Plug-in bolt; 4. Jack body; 5. Fixing bolt. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4The jack stabilizing device in this embodiment includes a base 1, a support mechanism 2, an anti-tipping component 3, and a jack body 4. The support mechanism 2 is provided on the base 1, and the anti-tipping component 3 is provided on both the front and rear sides of the base 1. The jack body 4, which is connected to the top of the base 1, is provided on the support mechanism 2.
[0023] The support mechanism 2 includes slots 201. Two slots 201 are formed on the base 1. A set of bearings 202 is fixedly installed inside each slot 201, with two bearings in each set. A bidirectional threaded rod 203 extending to the outer right side of the base 1 is fixedly connected to the inner wall of each set of bearings 202. A handwheel 204 is provided at one end of the bidirectional threaded rod 203 extending to the outer right side of the base 1. Two movable blocks 205 are threadedly connected to the outer wall of the bidirectional threaded rod 203. A limit guide plate 206 is provided at the bottom of each movable block 205. Simultaneously, guide grooves adapted to the limit guide plates 206 are formed on the inner bottom wall of each slot 201, and the two are in a sliding connection relationship. A support is fixedly connected to the top of each movable block 205. Block 207, the top of each of the two support blocks 207 is provided with a rotating hinge seat 208. The end of the rotating hinge seat 208 away from the support block 207 is fixedly connected to a fixed plate 209 connected to the jack body 4. First, through the combination of the bidirectional threaded rod 203 and the movable block 205, when the handwheel 204 is turned, the bidirectional threaded rod 203 synchronously drives the two movable blocks 205 to move towards or away from each other, which can flexibly adjust the distance between the two support blocks 207. This design can adapt to jack bodies 4 of different widths, improve the versatility of the device, and avoid the problem of unsuitable support caused by the difference in jack size. Then, the movement direction of the movable block 205 is constrained by the limiting guide plate 206 to prevent the movable block from deflecting or tilting when the bidirectional threaded rod rotates. This design ensures that the movable block always moves in a straight line, making the position adjustment of the support block 207 more precise. At the same time, it avoids support failure caused by the swaying of the movable block during the support process, enhancing structural stability. Finally, the support block 207 is connected to the rotating hinge seat 208, allowing the support block 207 to rotate slightly around the hinge point. This design allows the support block 207 to adaptively adjust its posture according to the tilt angle of the jack body 4 or the shape of the support surface, better fitting the support part of the jack, reducing local stress concentration, and improving the reliability of the support.
[0024] In the implementation of the case, both anti-rollover components 3 consist of a trapezoidal plate 301 and two plugs 302. The base 1 has two plug holes on both the front and rear sides that are compatible with the plugs 302, and the two are plugged in. First, the anti-rollover components can be installed by connecting the plugs 302 with the plug holes of the base 1 to achieve a "plug and play" installation method. Then, the side of the two trapezoidal plates 301 away from the base 1 is a 45° slope blocking structure. This design can form lateral constraints from the front and rear sides of the jack, effectively preventing the jack from rolling over due to uneven force or ground tilt. At the same time, the trapezoidal plate 301 and the plugs 302 are rigid components, which are not easy to deform or break under force, ensuring stable and continuous lateral support force and avoiding anti-rollover failure due to component deformation.
[0025] In the implementation of the case, the bottom of the trapezoidal plate 301 is covered with an anti-slip layer, and the surface of the anti-slip layer has an anti-slip texture structure. First, the anti-slip layer increases the frictional resistance between the trapezoidal plate and the ground, preventing the anti-tipping component from sliding due to lateral thrust when the jack is lifted. Then, the texture structure further refines the friction surface, disperses stress, avoids local slippage, and ensures that the trapezoidal plate is always "stablely positioned" and continuously provides reliable lateral support for the jack.
[0026] In the implementation of the case, the fixing plate 209 is equipped with fixing bolts 5, and the left and right sides of the jack body 4 are provided with several connection holes that are compatible with the fixing bolts 5. This design can firmly connect the support mechanism 2 and the jack body 4, thereby suppressing the displacement or shaking of the jack, while also facilitating disassembly and assembly so as to continue to adjust the lifting and lowering of the jack body 4.
[0027] When implementing this procedure, please follow these steps:
[0028] 1) First, place the base 1 on a flat surface. According to the width of the jack body 4, turn the handwheel 204 to adjust the double-threaded rod 203 so that the spacing of the two-sided support blocks 207 is adapted to the bottom of the jack.
[0029] 2) Then, fix the connecting holes on both sides of the jack body 4 to the fixing plate 209 using fixing bolts 5;
[0030] 3) Then, according to the working conditions, insert the plug 302 of the anti-rollover component 3 into the plug holes on the front and rear sides of the base 1;
[0031] 4) Finally, after checking that all parts are securely connected, the jack can be used for lifting operations.
[0032] In summary, this jack stabilizing device, through the setting of support mechanism 2, firstly, through the combination of bidirectional threaded rod 203 and movable block 205, when the handwheel 204 is turned, the bidirectional threaded rod 203 synchronously drives the movable blocks 205 on both sides to move towards or away from each other, which can flexibly adjust the distance between the two support blocks 207. This design can adapt to jack bodies 4 of different widths, improve the versatility of the device, and avoid the problem of unsuitable support caused by differences in jack size. Then, the movement direction of the movable block 205 is constrained by the limiting guide plate 206 to prevent the movable block from deflecting or tilting when the bidirectional threaded rod rotates. This design ensures that the movable block always moves in a straight line. This design allows for more precise positioning of the support block 207, while preventing support failure due to swaying of the movable block during support, thus enhancing structural stability. Finally, the support block 207 is connected to the rotating hinge seat 208, allowing the support block 207 to rotate slightly around the hinge point. This design allows the support block 207 to adaptively adjust its posture according to the tilt angle of the jack body 4 or the shape of the support surface, better fitting the support part of the jack, reducing local stress concentration, and improving the reliability of the support. This solves the problem that although the patent adds lateral support through the folding rod assembly, the jack body still has no auxiliary support, which leads to the problem of unstable lifting of the jack.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A jack stabilizing device, comprising a base (1), a support mechanism (2), an anti-tipping component (3), and a jack body (4), characterized in that: The base (1) is provided with a support mechanism (2), and anti-tipping components (3) are provided on both the front and rear sides of the base (1). The support mechanism (2) is provided with a jack body (4) connected to the top of the base (1). The support mechanism (2) includes a slot (201). Two slots (201) are provided on the base (1). A set of bearings (202) is fixedly installed inside each of the two slots (201). A bidirectional threaded rod (203) extending to the outside of the right side of the base (1) is fixedly connected to the inner wall of the two sets of bearings (202). A handwheel (204) is provided at one end of the bidirectional threaded rod (203) to the outside of the right side of the base (1). Two movable blocks (205) are threadedly connected to the outer wall of the bidirectional threaded rod (203). A limit guide plate (206) is provided at the bottom of each of the two movable blocks (205). A support block (207) is fixedly connected to the top of each of the two movable blocks (205). A rotating hinge seat (208) is provided at the top of each of the two support blocks (207). A fixed plate (209) connected to the jack body (4) is fixedly connected to the end of the rotating hinge seat (208) away from the support block (207).
2. The jack stabilizing device according to claim 1, characterized in that: The number of bearings (202) in each group is two.
3. The jack stabilizing device according to claim 2, characterized in that: The inner bottom walls of the two slots (201) are provided with guide grooves that are compatible with the limiting guide plate (206), and the two are in a sliding connection relationship.
4. The jack stabilizing device according to claim 3, characterized in that: The fixing plate (209) is provided with fixing bolts (5), and the jack body (4) has several connection holes on both the left and right sides that are compatible with the fixing bolts (5).
5. A jack stabilizing device according to claim 4, characterized in that: Both of the anti-rollover components (3) consist of a trapezoidal plate (301) and two plugs (302). The base (1) has two plug holes on its front and rear sides that are compatible with the plugs (302), and the two are plugged in.
6. A jack stabilizing device according to claim 5, characterized in that: Both the trapezoidal plate (301) and the plug (302) are rigid components.
7. A jack stabilizing device according to claim 6, characterized in that: The bottom of each trapezoidal plate (301) is covered with an anti-slip layer, and the surface of the anti-slip layer is provided with an anti-slip texture structure.
8. A jack stabilizing device according to claim 7, characterized in that: Both trapezoidal plates (301) have a 45° slope blocking structure on the side away from the base (1).