Jack capable of avoiding ground damage

Abstract

The jack comprises a base, a first force arm and a second force arm, the bottom of the base is movably connected with a rotating disc, the rotating disc is movably connected with the interior of a round hole, the round hole is formed outside a connecting block, the left side and the right side of the connecting block are connected with supporting frames through rotating shafts, and supporting plates are welded to the side faces of the supporting frames. Gaskets are installed at the bottoms of the supporting plates and the bottoms of the supporting frames. According to the jack capable of avoiding ground damage, the bottom of the base is movably connected with the rotating disc, the rotating disc is movably connected with the interior of the round hole, the round hole is formed outside the connecting block, then the left side and the right side of the connecting block are connected with the supporting frames through rotating shafts, the supporting plates are welded to the side faces of the supporting frames, and then the gaskets are installed at the bottoms of the supporting plates; and the gasket is arranged at the bottom of the support frame, so that the stress area of the jack base supported on the ground can be changed, and the jack is not easy to damage or destroy paving materials on a road or the ground.

Description

Technical Field

[0001] The utility model belongs to the technical field of jack machinery, and particularly relates to a jack for avoiding ground damage. Background Technique

[0002] A jack refers to a light lifting device that uses a rigid lifting piece as a working device and jacks up a heavy object within a small stroke through a top support or a bottom support claw. Jacks are mainly used in factories, mines, transportation and other departments for vehicle repair and other lifting and supporting work. Their structures are light, strong, flexible and reliable, and can be carried and operated by one person.

[0003] The following problems exist when using the existing jacks on the market:

[0004] 1. When applying traditional jacks, when using a jack to lift or support an object, part of the weight of the object will be borne by the jack, and the force-bearing area of the jack base supported on the ground is small. In this way, the jack is likely to damage or destroy the paving materials of the road or ground;

[0005] 2. When applying most jacks, since the jacks mostly support heavy objects, the top support is prone to deformation or damage due to long-term lifting of heavy objects. Moreover, because it is not easy to disassemble or repair, it takes time and effort for maintenance personnel to operate. Content of the Utility Model

[0006] The purpose of the utility model is to provide a jack for avoiding ground damage to solve the technical problems raised in the background technique.

[0007] To achieve the above purpose, the specific technical solution of the utility model is as follows: A jack for avoiding ground damage includes a base, a first force arm and a second force arm. The bottom of the base is movably connected to a turntable, and the turntable is movably connected inside a round hole. The round hole is opened outside a connecting block. Both the left and right sides of the connecting block are rotationally connected to support frames. A support plate is welded to the side of the support frame, a gasket is installed at the bottom of the support plate, and a gasket is installed at the bottom of the support frame.

[0008] Preferably, a second shaft rod penetrates through the first force arm, the second shaft rod penetrates through the inside of a top seat, a screw hole is opened at the top of the top seat, a screw rod is threadedly connected inside the screw hole, the screw rod penetrates through the inside of a support seat, a counterweight piece is provided at the top of the support seat, and a knob is installed at the top of the screw rod.

[0009] Preferably, a third shaft rod penetrates through the first force arm, and the third shaft rod penetrates through the inside of the second force arm.

[0010] Preferably, a first shaft rod penetrates through the outside of the base, and the first shaft rod penetrates through the inside of the second force arm.

[0011] Preferably, a threaded hole is formed in the side surface of the third shaft rod, and a threaded rod is threadedly connected inside the threaded hole.

[0012] Preferably, a fixing nut is fixedly connected to the outside of the threaded rod, and the fixing nut is located on the side surface of the third shaft rod.

[0013] A jack for avoiding ground damage of the present utility model has the following advantages:

[0014] 1. For this jack for avoiding ground damage, by movably connecting a turntable to the bottom of the base, and inside the movable connection circular hole of the turntable, the circular hole is formed outside the connection block, then the support frames are rotatably connected to the left and right sides of the connection block, the support plates are welded to the side surfaces of the support frames, then gaskets are installed at the bottoms of the support plates, and gaskets are installed at the bottoms of the support frames. In this way, when the jack lifts a heavy object, the support frames and the support plates can be flipped down through the connecting rod and the rotating shaft, and then the connection block is rotated 90 degrees by using the turntable, so that all four sides of the base are pressed on the support frames and the support plates, thereby increasing the force-bearing area of the jack on the ground. In this way, the force-bearing area of the jack base supported on the ground can be changed, making it difficult for the jack to damage or destroy the paving materials of the road or the ground.

[0015] 2. For this jack for avoiding ground damage, by passing a second shaft rod through the first force arm and passing the second shaft rod through the inside of the top seat, a screw hole is formed in the top of the top seat, then a screw rod is threadedly connected inside the screw hole, the screw rod passes through the inside of the support seat, then a pressing piece is provided on the top of the support seat, and a knob is installed on the top of the screw rod. In this way, after the support seat is deformed and damaged due to the long-term lifting of heavy objects by the jack, the knob can be loosened to screw out the screw rod from the screw hole, so that the support seat is separated from the top seat, and then a new support seat can be replaced or repaired. After that, the screw rod is passed through the support seat and the screw hole and tightened. In this way, the replacement or repair of the support seat is very convenient, and it saves time and effort for the maintenance personnel during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

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

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

[0019] Figure 3 It is a schematic diagram of the threaded rod structure of the present utility model;

[0020] Figure 4 Schematic diagram of the support structure of the present utility model;

[0021] Explanation of the markings in the figure: 1. First force arm; 2. Second force arm; 3. Base; 4. First shaft rod; 5. Top seat; 6. Support; 7. Knob; 8. Contact piece; 9. Support frame; 10. Connecting block; 11. Round hole; 12. Support plate; 13. Turntable; 14. Screw hole; 15. Second shaft rod; 16. Third shaft rod; 17. Threaded hole; 18. Threaded rod; 19. Fixed nut; 20. Screw rod; 21. Gasket. Detailed implementation manners

[0022] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present utility model. Therefore, the drawings and the description are regarded as being essentially exemplary rather than restrictive.

[0023] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "vertical", "horizontal", "top", "bottom", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0025] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present utility model. To simplify the disclosure of the embodiments of the present utility model, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] To better understand the purpose, structure and function of the present utility model, the following further describes in detail a jack for avoiding ground damage of the present utility model with reference to the accompanying drawings.

[0028] As Figures 1-4 shown, a jack for avoiding ground damage of the present utility model includes a base 3, a first force arm 1 and a second force arm 2. The bottom of the base 3 is movably connected to a turntable 13, and the turntable 13 is movably connected inside a circular hole 11. The circular hole 11 is opened outside a connecting block 10. Both the left and right sides of the connecting block 10 are rotatably connected to support frames 9 by shafts. A support plate 12 is welded to the side of the support frame 9. A gasket 21 is installed at the bottom of the support plate 12, and a gasket 21 is installed at the bottom of the support frame 9. In this way, when the jack lifts a heavy object, the support frames 9 and the support plate 12 can be flipped down through the connecting rod and the rotating shaft, and then the connecting block 10 is rotated 90 degrees by using the turntable 13, so that all four sides of the base 3 are pressed on the support frames 9 and the support plate 12, thereby increasing the force-bearing area of the jack on the ground. In this way, the force-bearing area of the jack base 3 supported on the ground can be changed, so that the jack is not likely to cause damage or destruction to the paving materials of the road or the ground.

[0029] A second shaft rod 15 penetrates through the first force arm 1, and the second shaft rod 15 penetrates through the inside of a top seat 5. A screw hole 14 is opened at the top of the top seat 5. A screw rod 20 is threadedly connected inside the screw hole 14. The screw rod 20 penetrates through the inside of a support seat 6. A pressing piece 8 is provided at the top of the support seat 6. A knob 7 is installed at the top of the screw rod 20. In this way, after the support seat 6 is deformed and damaged due to the long-term lifting of a heavy object by the jack, the knob 7 can be loosened to screw out the screw rod 20 from the screw hole 14, so that the support seat 6 is separated from the top seat 5. Then, a new support seat 6 can be replaced or repaired, and then the screw rod 20 is passed through the support seat 6 and tightened with the screw hole 14. In this way, the replacement or repair of the support seat 6 is very convenient, and it saves time and effort for maintenance personnel during operation.

[0030] A third shaft rod 16 penetrates through the first force arm 1, and the third shaft rod 16 penetrates through the inside of the second force arm 2. By providing the structure of the first force arm 1, it is convenient for the user to use the jack.

[0031] A first shaft rod 4 penetrates through the outside of the base 3, and the first shaft rod 4 penetrates through the inside of the second force arm 2. By providing the structure of the second force arm 2, it is convenient for the user to use the jack.

[0032] A threaded hole 17 is formed on the side surface of the third shaft rod 16, and a threaded rod 18 is threadedly connected inside the threaded hole 17. With the provided threaded rod 18 structure, it is convenient for the user to change the lifting or supporting height of the jack.

[0033] A fixing nut 19 is fixedly connected to the outside of the threaded rod 18, and the fixing nut 19 is located on the side surface of the third shaft rod 16. With the provided fixing nut 19 structure, it is convenient for the user to rotate the threaded rod 18.

[0034] The working principle of the jack for avoiding ground damage: When using the jack for avoiding ground damage, first, the turntable 13 can be movably connected to the bottom of the base 3, and inside the movable connection circular hole 11 of the turntable 13, the circular hole 11 is formed outside the connecting block 10. Then, the support frames 9 are rotatably connected to both the left and right sides of the connecting block 10, the support plates 12 are welded to the side surfaces of the support frames 9, and then the gaskets 21 are installed at the bottoms of the support plates 12 and the support frames 9. In this way, when the jack lifts a heavy object, the support frames 9 and the support plates 12 can be flipped down through the connecting rod and the rotating shaft, and then the connecting block 10 is rotated 90 degrees by using the turntable 13, so that the four sides of the base 3 are all pressed on the support frames 9 and the support plates 12, thereby increasing the force-bearing area of the jack on the ground. In this way, the force-bearing area of the jack base 3 supported on the ground can be changed, so that the jack is not likely to cause damage or destruction to the paving materials of the road or the ground. Secondly, the second shaft rod 15 can be passed through the first force arm 1, and the second shaft rod 15 is passed through the inside of the top seat 5. A screw hole 14 is formed at the top of the top seat 5. Then, a screw rod 20 is threadedly connected inside the screw hole 14, and the screw rod 20 passes through the inside of the support seat 6. Then, a pressing piece 8 is provided at the top of the support seat 6, and a knob 7 is installed at the top of the screw rod 20. In this way, after the support seat 6 is deformed and damaged due to the long-term lifting of heavy objects by the jack, the knob 7 can be loosened to screw out the screw rod 20 from the screw hole 14, so that the support seat 6 is separated from the top seat 5, and then a new support seat 6 can be replaced or repaired. After that, the screw rod 20 and the screw hole 14 are tightened. In this way, the replacement or repair of the support seat 6 is very convenient, and it saves time and effort for the maintenance personnel during operation.

[0035] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present utility model.

Claims

1. A jack for avoiding ground damage, comprising a base (3), a first force arm (1) and a second force arm (2), characterized in that: The bottom of the base (3) is movably connected to the turntable (13), the turntable (13) is movably connected inside the circular hole (11), the circular hole (11) is opened outside the connecting block (10), both the left and right sides of the connecting block (10) are rotationally connected to the support frame (9), the side of the support frame (9) is welded with a support plate (12), the bottom of the support plate (12) is provided with a gasket (21), and the bottom of the support frame (9) is provided with a gasket (21).

2. The jack for avoiding ground damage according to claim 1, wherein: The second shaft rod (15) penetrates through the inside of the first force arm (1), the second shaft rod (15) penetrates through the inside of the top seat (5), a screw hole (14) is opened at the top of the top seat (5), a screw rod (20) is threadedly connected inside the screw hole (14), the screw rod (20) penetrates through the inside of the support seat (6), a resisting piece (8) is provided at the top of the support seat (6), and a knob (7) is installed at the top of the screw rod (20).

3. The jack for avoiding ground damage according to claim 1, wherein: The third shaft rod (16) penetrates through the inside of the first force arm (1), and the third shaft rod (16) penetrates through the inside of the second force arm (2).

4. The jack for avoiding ground damage according to claim 1, wherein: The first shaft rod (4) penetrates through the outside of the base (3), and the first shaft rod (4) penetrates through the inside of the second force arm (2).

5. The jack for avoiding ground damage according to claim 3, wherein: A threaded hole (17) is opened on the side of the third shaft rod (16), and a threaded rod (18) is threadedly connected inside the threaded hole (17).

6. The jack for avoiding ground damage according to claim 5, wherein: A fixing nut (19) is fixedly connected to the outside of the threaded rod (18), and the fixing nut (19) is located on the side of the third shaft rod (16).

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