Jack with anti-toppling structure

Abstract

The utility model relates to a jack with an anti-toppling structure. The jack with the anti-toppling structure comprises a bottom plate and a jack body. The anti-toppling shell is arranged on the upper surface of the bottom plate; the pressing vertical block is arranged in the pressing cavity; the main spring and the supporting rod are sequentially arranged in the half shell from top to bottom; the positioning block and the transverse spring are arranged in the supporting rod and extend into the through hole; and the top cover is arranged at the top end of the anti-toppling shell. Through the arrangement of the main spring, the supporting rod and other components and the matching relation between the main spring and the supporting rod, when the jack is arranged on the vehicle bottom, the supporting rod moves upwards under the action of the upward elastic force of the main spring, and at the moment, the stress plate is tightly attached to the vehicle bottom under the action of the elastic force; therefore, the bottom plate is tightly attached to the bottom face under the action of the elastic force, and the effect of fixing the jack is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of jacks, in particular to a jack with an anti-dumping structure. Background Art

[0002] A jack is a small and light lifting equipment that uses a rigid lifting piece as a working device and can lift heavy objects within a small stroke of a top support or a bottom support claw. Jacks are mainly used in factories, mines, transportation and other departments for vehicle repairs and other lifting and supporting work.

[0003] Hydraulic jack is the most widely used jack. It is very stable when used and can provide greater support. In order to obtain better portability, hydraulic jacks are usually set to be relatively small, so they are often carried with the car.

[0004] When a vehicle breaks down and a jack is needed, the jack is usually placed under the vehicle, and then the jack is used to lift the vehicle by operating the handle. Due to the limited space under the vehicle, in order to operate the handle normally, the user usually needs to bend over or squat to operate, which is very uncomfortable for adults and inconvenient to use force. In addition, since the volume and gravity of the hydraulic jack itself are small, when the operator uses the jack in an inconvenient posture to use force, the jack will tilt or even fall, which increases the difficulty of using the jack.

[0005] In order to prevent the jack from tipping over, the jacks on the market are equipped with pedals, which can be fixed by stepping on them. However, due to the small space under the car, it is not convenient for the operator to step on the pedals, so this method is not very suitable.

[0006] Therefore, a jack with an anti-dumping structure is proposed to solve the above-mentioned problem. Utility Model Content

[0007] Based on the above description, the utility model provides a jack with an anti-dumping structure to solve the problem that the hydraulic jack may tilt or dump when placed under a vehicle for use.

[0008] The utility model provides a technical solution to the above-mentioned technical problem as follows: a jack with an anti-dumping structure, comprising: a base plate and a jack body, an anti-dumping shell arranged on the upper surface of the base plate, and comprising a half shell, a through hole, a protrusion and a pressing cavity, the through hole being arranged on the outer surface of the half shell and being communicated with the pressing cavity, a vertical pressing block being arranged inside the pressing cavity, a main spring and a support rod being arranged inside the half shell in sequence from top to bottom, a positioning block and a transverse spring being arranged inside the support rod and extending to the inside of the through hole, and a top cover being arranged at the top end of the anti-dumping shell.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the half shell is arranged on the upper surface of the bottom plate by screws, the outer surface of the half shell is provided with connecting ears, and two adjacent connecting ears are connected to each other by screws and nuts.

[0011] Furthermore, the outer surface of the half shell is provided with the protrusion, the interior of the protrusion is provided with the pressing cavity, and the outer surface of the top of the anti-dumping shell is provided with a thread.

[0012] Furthermore, the pressing vertical block includes a block body, which is an H-shaped vertical block. The block body is arranged inside the pressing cavity and extends to the outside of the pressing cavity.

[0013] Furthermore, a push rod is provided on one side of the block close to the through hole, and the push rod extends to the inside of the through hole.

[0014] Furthermore, the support rod comprises a vertical rod, an outer surface of the vertical rod is provided with a blind hole, an interior of the blind hole is provided with the positioning block, and a transverse spring is provided on the opposite side of the positioning block.

[0015] Furthermore, a force-bearing plate is provided on the top of the vertical rod, and the upper surface of the force-bearing plate is a toothed surface.

[0016] Furthermore, the diameter of the positioning block on a side close to the transverse spring is greater than the diameter of the side away from the transverse spring, and the side of the positioning block extending to the inside of the through hole contacts the push rod.

[0017] Furthermore, the top cover is an internally threaded top cover, and the top cover is adapted to the threads on the surface of the anti-dumping shell.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] 1. The utility model is provided with components such as a main spring and a support rod, and through the cooperation relationship between the main spring and the support rod, when the jack is placed under the vehicle, the support rod moves upward under the upward elastic force of the main spring, and at this time, the force plate is closely fitted with the vehicle bottom under the action of the elastic force. Since the force is mutual, the bottom plate is also closely fitted with the bottom surface under the action of the elastic force;

[0020] 2. The support rod is fixed by setting the through hole, the pressing vertical block, the positioning block and the transverse spring, so that the main spring and the support rod are in the initial state when the pressing vertical block is not pressed. When the pressing vertical block is pressed, it squeezes the positioning block, causing the positioning block to move, thereby releasing the elastic force of the main spring, and the support rod is forced to move upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a jack with an anti-dumping structure provided in an embodiment of the utility model;

[0022] Figure 2 for Figure 1 Structural cross-sectional view of

[0023] Figure 3 for Figure 2 A structural diagram from another perspective;

[0024] Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle A area;

[0025] Figure 5 This is a schematic diagram of the structure of 3 in the embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of 4 in the embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of Embodiment 6 of the present utility model;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Bottom plate; 2. Jack body; 3. Anti-dumping shell; 31. Half shell; 32. Connecting ear; 33. Through hole; 34. Bump; 35. Pressing cavity; 4. Pressing vertical block; 41. Block; 42. Push rod; 5. Main spring; 6. Support rod; 61. Vertical rod; 62. Blind hole; 63. Force plate; 7. Positioning block; 8. Transverse spring; 9. Top cover. DETAILED DESCRIPTION

[0030] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0032] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0033] See also Figure 1 , Figure 2 and Figure 5 , a jack with an anti-dumping structure, comprising:

[0034] Base plate 1 and jack body 2; and

[0035] The anti-dumping housing 3 is arranged on the upper surface of the bottom plate 1 and comprises a half shell 31, a through hole 33, a convex block 34 and a pressing cavity 35, wherein:

[0036] The half shell 31 is set on the upper surface of the bottom plate 1 by screws, the outer surface of the half shell 31 is provided with a connecting ear 32, two adjacent connecting ears 32 are connected to each other by screws and nuts, the outer surface of the half shell 31 is provided with the protrusion 34, the inside of the protrusion 34 is provided with the pressing cavity 35, and the outer surface of the top of the anti-dumping shell 3 is provided with a thread;

[0037] a through hole 33, which is disposed on the outer surface of the half shell 31 and communicates with the pressing cavity 35;

[0038] Based on the above, the base plate 1 plays a role in fixing the anti-dumping shell 3, and the jack body 2 is the existing technology, so its internal structure and principle are not described here in detail. The connecting ear 32 cooperates with the screw and the nut to connect the half shell 31, and the setting of the through hole 33 cooperates with the positioning block 7 to fix the support rod 6. The pressing cavity 35 limits the pressing vertical block 4, so that the pressing vertical block 4 can only move laterally along the direction of the pressing cavity 35.

[0039] like Figure 2 , Figure 3 as well as Figure 7 As shown, the main spring 5 and the support rod 6 are sequentially arranged inside the half shell 31 from top to bottom;

[0040] The support rod 6 includes a vertical rod 61, the outer surface of the vertical rod 61 is provided with a blind hole 62, the positioning block 7 is provided inside the blind hole 62, a transverse spring 8 is provided on the opposite side of the positioning block 7, and a force plate 63 is provided on the top of the vertical rod 61, and the upper surface of the force plate 63 is a toothed surface;

[0041] Based on the above, the main spring 5 is in a compressed state. At this time, the main spring 5 can apply elastic force to the support rod 6. When the support rod 6 can move upward, the toothed surface contacts the bottom of the vehicle. At this time, the main spring 5 is still in a compressed state to ensure that there is interaction force between the bottom of the vehicle and the support rod, and between the bottom surface and the bottom plate. The setting of the toothed surface plays an anti-slip role.

[0042] like Figure 3 , Figure 4 as well as Figure 6 As shown, the pressing vertical block 4 is arranged inside the pressing cavity 35, and the pressing vertical block 4 includes a block body 41, and the block body 41 is an H-shaped vertical block, and the block body 41 is arranged inside the pressing cavity 35 and extends to the outside of the pressing cavity 35, and a push rod 42 is arranged on one side of the block body 41 close to the through hole 33, and the push rod 42 extends to the inside of the through hole 33;

[0043] A positioning block 7 and a transverse spring 8, which are arranged inside the support rod 6 and extend to the inside of the through hole 33, wherein the diameter of the positioning block 7 close to the transverse spring 8 is larger than the diameter of the side away from the transverse spring 8, and the positioning block 7 extends to the side inside the through hole 33 and contacts the push rod 42;

[0044] A top cover 9 is arranged at the top of the anti-dumping housing 3, and the top cover 9 is an internally threaded top cover, and the top cover 9 is adapted to the threads on the surface of the anti-dumping housing 3;

[0045] Based on the above, the positioning block 7 cooperates with the transverse spring 8 to fix the support rod 6. At this time, the positioning block 7 is located at the through hole 33. The positioning block 7 is inserted into the through hole 33 under the elastic force of the transverse spring 8, thereby fixing the support rod 6. When the positioning block 7 is inserted into the through hole 33, the vertical block 4 is squeezed and pressed, so that the vertical block 4 is in contact with the positioning block 7. By pressing the vertical block 4, the positioning block 7 is separated from the through hole 33 after movement, and then the support rod 6 moves upward under the elastic force of the main spring 5, wherein the top cover 9 plays a role of complete closure. When the top cover 9 is connected to the anti-dumping shell 3, the support rod 6 cannot move upward.

[0046] In actual use of this embodiment, after unscrewing the top cover 9, the jack is placed under the vehicle, and at this time, the pressing vertical blocks 4 are pushed at the same time, so that the pressing vertical blocks 4 move toward each other. In this process, the push rod 42 squeezes the positioning block 7, so that the positioning block 7 is separated from the through hole 33;

[0047] After the positioning block 7 is separated from the through hole 33, it moves upward under the action of the elastic force of the main spring 5, so that the force-bearing plate 63 is closely fitted with the bottom of the vehicle. At this time, the main spring 5 is still in a compressed state (relative to the main spring 5 in the initial state, the compression degree is smaller). At this time, there is an interaction force between the bottom of the vehicle and the support rod 6, and between the ground and the bottom plate 1, so as to increase the friction force, so that the jack is fixed to the bottom of the vehicle under the action of the friction force;

[0048] Compared with the traditional hydraulic jack, this jack is improved on the basis of the hydraulic jack so that there is sufficient friction when the jack is placed under the vehicle, so that the jack is in a vertical state to avoid the jack tilting or even tipping over when the user operates the handle.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A jack with an anti-dumping structure, characterized in that: include: Base plate (1) and jack body (2); as well as The anti-dumping housing (3) is arranged on the upper surface of the bottom plate (1) and comprises a half shell (31), a through hole (33), a convex block (34) and a pressing cavity (35), wherein: A through hole (33) which is arranged on the outer surface of the half shell (31) and is connected to the pressing cavity (35); A vertical pressing block (4) disposed inside the pressing cavity (35); A main spring (5) and a support rod (6), which are sequentially arranged inside the half shell (31) from top to bottom; A positioning block (7) and a transverse spring (8), which are arranged inside the support rod (6) and extend to the inside of the through hole (33); A top cover (9) is arranged on the top of the anti-dumping shell (3).

2. The jack according to claim 1, characterized in that: The half shell (31) is arranged on the upper surface of the bottom plate (1) by means of screws, and the outer surface of the half shell (31) is provided with connecting ears (32), and two adjacent connecting ears (32) are connected to each other by means of screws and nuts.

3. The jack according to claim 2, characterized in that: The outer surface of the half shell (31) is provided with the protrusion (34), the interior of the protrusion (34) is provided with the pressing cavity (35), and the outer surface of the top of the anti-dumping shell (3) is provided with a thread.

4. The jack according to claim 3, characterized in that: The pressing vertical block (4) comprises a block body (41), and the block body (41) is an H-shaped vertical block. The block body (41) is arranged inside the pressing cavity (35) and extends to the outside of the pressing cavity (35).

5. The jack according to claim 4, characterized in that: A push rod (42) is provided on one side of the block (41) close to the through hole (33), and the push rod (42) extends into the interior of the through hole (33).

6. The jack according to claim 1, characterized in that: The support rod (6) comprises a vertical rod (61), the outer surface of the vertical rod (61) is provided with a blind hole (62), the interior of the blind hole (62) is provided with the positioning block (7), and a transverse spring (8) is provided on the opposite side of the positioning block (7).

7. The jack according to claim 6, characterized in that: A force-bearing plate (63) is provided on the top of the vertical rod (61), and the upper surface of the force-bearing plate (63) is a toothed surface.

8. The jack according to claim 5, characterized in that: The diameter of the positioning block (7) on the side close to the transverse spring (8) is larger than the diameter of the side away from the transverse spring (8), and the side of the positioning block (7) extending to the inside of the through hole (33) contacts the push rod (42).

9. The jack according to claim 3, characterized in that: The top cover (9) is an internally threaded top cover, and the top cover (9) is adapted to the threads on the surface of the anti-dumping shell (3).

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