Mechanical hydraulic jack

Abstract

The utility model provides a mechanical hydraulic jack which comprises a base, a supporting seat is welded to the base, a movable seat is movably installed between the supporting seat and the base, a fixing groove is formed in the side of the movable seat, the fixing groove is installed on the supporting seat in a clamped mode, an open groove is formed in the supporting seat, a limiting groove is formed in the inner wall of the open groove, and the limiting groove is connected with the movable seat in a clamped mode. And a supporting rod is movably installed in the open groove, a fixing block and a fixing rod are welded to the side of the supporting rod, and a connecting groove is formed in the inner wall of the fixing groove. When the mechanical hydraulic jack is used, after an extrusion seat moves upwards, a threaded column on a ring seat rotates in a supporting pipe to adjust the overall length of the supporting pipe according to the upward moving distance of a supporting column, and after the ring seat makes contact with the top of the supporting seat, the ring seat drives the supporting pipe to move; and the limiting columns enter the limiting holes to lock and support the supporting columns through movement, and in addition, the supporting pipes and the sliding blocks achieve multi-point supporting of the extrusion base.

Description

Technical Field

[0001] This utility model relates to the field of jack equipment, specifically a mechanical hydraulic jack. Background Technology

[0002] When heavy objects need to be lifted, they need to be supported by jacks. Jacks are small lifting devices that use rigid lifting components as working devices to lift heavy objects within a short stroke through the top support or bottom claws. Existing jacks cannot lift heavy objects for a long time after lifting them. When lifting for a long time, the jack will move downward under the pressure of gravity, which can easily cause the heavy objects to deviate and tilt.

[0003] According to a patent document with publication number CN220078453U, a mechanical hydraulic jack device includes a base assembly, which comprises a base frame consisting of a base plate, a top plate, and two side plates. A circular tube is fixedly installed on the top surface of the top plate. A vertical hydraulic jack is fixedly installed on the base plate. A handwheel assembly is located above the circular tube. A first screw passes through the handwheel assembly and the circular tube and is fixedly connected to the piston rod of the vertical hydraulic jack. An anti-rotation structure is provided between the first screw and the circular tube. In use, this technical solution provides a large clamping force through the hydraulic jack, and then the assembly is rotated so that the bottom surface of the handwheel assembly is pressed tightly against the top surface of the circular tube, thereby allowing the first screw to maintain a large clamping force to clamp the crossbeam of the train. Regarding the lifting technology, although this solution maintains clamping force to support the object, the upward lifting support point is relatively single, and it cannot achieve multi-point support at the support position, which is inconvenient in use. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a mechanical hydraulic jack to solve the problems mentioned in the background. This utility model has a novel structure. In use, after the extrusion seat moves upward, the threaded column on the ring seat is rotated inside the support tube to adjust its overall length according to the upward movement distance of the support column. When the ring seat contacts the top of the support seat, the ring seat drives the support tube to move. The movement causes the limiting column to enter the limiting hole and lock the support column. In addition, the support tube and the slider provide multi-point support for the extrusion seat.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a mechanical hydraulic jack, including a base, a support seat welded on the base, a movable seat movably installed between the support seat and the base, a fixing groove opened on the side of the movable seat, the fixing groove being snapped onto the support seat, a slot opened on the support seat, a limit groove opened on the inner wall of the slot, a support rod movably installed inside the slot, and a fixing block and a fixing rod welded to the side of the support rod respectively.

[0006] Furthermore, a jack is fixedly installed on the movable seat, a telescopic column is movably installed on the jack, and a limit ring is fixed on the telescopic column.

[0007] Furthermore, the top of the support base has an opening and a fixing hole, the fixing hole is installed between the openings, a support column is movably installed inside the fixing hole, and a pressing seat is fixed to one end of the support column.

[0008] Furthermore, a groove is provided on one side of the extrusion seat, and a slider is movably installed inside the groove. A support assembly is fixedly installed on the slider, and the support assembly is movably installed inside the opening.

[0009] Furthermore, the support column has a limiting hole, and one end of the support column has a connecting hole. The connecting hole is movably in contact with one end of the telescopic column, and a groove is formed on the side of the opening.

[0010] Furthermore, the support assembly includes a support tube with a threaded hole inside. A threaded post is rotatably mounted inside the threaded hole, and a ring seat is welded to one end of the threaded post.

[0011] Furthermore, a limiting post is welded to one side of the ring seat, the limiting post is movably engaged with the groove, and one end of the limiting post is movably installed inside the limiting hole.

[0012] Furthermore, a connecting groove is formed on the inner wall of the fixing groove, and one end of the fixing rod is installed inside the connecting groove through a limiting groove.

[0013] The beneficial effects of this utility model are:

[0014] This type of mechanical hydraulic jack, when in use, after the extrusion seat moves upward, adjusts the overall length of the threaded column on the ring seat by rotating it inside the support tube according to the distance the support column moves upward. When the ring seat contacts the top of the support seat, the ring seat drives the support tube to move, and the movement causes the limiting column to enter the limiting hole to lock and support the support column. In addition, the support tube and the slider provide multi-point support for the extrusion seat.

[0015] This is a mechanical hydraulic jack. The movable seat moves on the support seat to adjust the initial height. The fixed rod cooperates with the connecting groove to support and fix the movable seat. After the movable seat rises, the height of the pressing seat is adjusted. After the jack lifts the pressing seat, the pressing seat is locked and limited. The movable rod moves upward through the fixed block and the fixed rod. The upward movement of the fixed rod provides support and fixation to both ends of the pressing seat. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of a mechanical hydraulic jack according to the present invention;

[0017] Figure 2 This is a schematic diagram of the movable seat of a mechanical hydraulic jack according to the present invention;

[0018] Figure 3 This is a schematic diagram of the opening and fixing hole of a mechanical hydraulic jack according to the present invention;

[0019] Figure 4 This is a schematic diagram of the support rod of a mechanical hydraulic jack according to the present invention;

[0020] Figure 5 This is a side view sectional view of the compression seat of a mechanical hydraulic jack according to the present invention.

[0021] In the diagram: 1. Base; 2. Movable seat; 3. Jack; 4. Support seat; 5. Limiting groove; 6. Support rod; 7. Support column; 8. Limiting hole; 9. Pressing seat; 10. Support assembly; 11. Fixing groove; 12. Connecting groove; 13. Telescopic column; 14. Limiting ring; 15. Opening; 16. Groove; 17. Fixing hole; 18. Fixing block; 19. Fixing rod; 20. Slide groove; 21. Slider; 22. Support tube; 23. Threaded hole; 24. Threaded column; 25. Ring seat; 26. Limiting column; 27. Connecting hole; 28. Groove. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1 to 5 This utility model provides a technical solution: a mechanical hydraulic jack, including a base 1, a support seat 4 welded on the base 1, a movable seat 2 movably installed between the support seat 4 and the base 1, a fixing groove 11 opened on the side of the movable seat 2, the fixing groove 11 being snapped onto the support seat 4, a slot 28 opened on the support seat 4, a limit groove 5 opened on the inner wall of the slot 28, a support rod 6 movably installed inside the slot 28, a fixing block 18 and a fixing rod 19 respectively welded to the side of the support rod 6, a jack 3 fixedly installed on the movable seat 2, a telescopic column 13 movably installed on the jack 3, a limit ring 14 fixed on the telescopic column 13, and after the telescopic column 13 is installed inside the connecting hole 27, the telescopic column 13 and the support column 7 are connected and fixed.

[0024] In this embodiment, the top of the support base 4 has an opening 15 and a fixing hole 17. The fixing hole 17 is installed between the openings 15. A support column 7 is movably installed inside the fixing hole 17. An extrusion seat 9 is fixed to one end of the support column 7. A sliding groove 20 is opened on one side of the extrusion seat 9. A slider 21 is movably installed inside the sliding groove 20. A support assembly 10 is fixedly installed on the slider 21. The support assembly 10 is movably installed inside the opening 15. A limit hole 8 is opened on the support column 7. A connecting hole 27 is opened at one end of the support column 7. The connecting hole 27 movably contacts one end of the telescopic column 13. A groove 16 is opened on the side of the opening 15. The support assembly 10 moves in the sliding groove 20 via the slider 21 to adjust the position of the support assembly 10. The support assembly 10 limits the support column 7 while providing multi-point support for the extrusion seat 9.

[0025] In this embodiment, the support assembly 10 includes a support tube 22, with a threaded hole 23 inside the support tube 22. A threaded post 24 is rotatably installed inside the threaded hole 23. A ring seat 25 is welded to one end of the threaded post 24, and a limiting post 26 is welded to one side of the ring seat 25. The limiting post 26 is movably engaged with the groove 16, and one end of the limiting post 26 is movably installed inside the limiting hole 8. A connecting groove 12 is opened on the inner wall of the fixing groove 11. One end of the fixing rod 19 is installed inside the connecting groove 12 through the limiting groove 5. The threaded post 24 rotates inside the threaded hole 23. After the threaded post 24 rotates, it adjusts the overall length between the ring seat 25 and the support tube 22 to support the extrusion seat 9.

[0026] When using this device, first connect it to the pressure-regulating mechanism of the jack using a tool. Adjust the initial height of the movable seat 2 according to the height of the lifting of the compression seat 9. Move the support rod 6 out of the slot 28. After moving it out, remove the fixing rod 19 from the connecting groove 12. After the fixing rod 19 is removed, the movable seat 2 loses its upper and lower limit positions. Slide the movable seat 2 on the support seat 4 through the fixing groove 11 to adjust the initial height. Then install the support rod 6 inside the slot 28. After the support rod 6 is installed inside the slot 28, fix it. Block 18 enters the interior of the limiting groove 5. The width of the fixed block 18 is equal to that of the limiting groove 5. The fixed rod 19 is installed inside the connecting groove 12 through the limiting groove 5 to limit and support the movable seat 2. After the movable seat 2 is adjusted, the jack is raised as a whole. The telescopic column 13 moves upward and enters the interior of the connecting hole 27. The diameter of the limiting ring 14 is the same as the diameter of the support column 7. The limiting ring 14 provides a support point for the support column 7. When the telescopic column 13 is raised, the support column 7 moves upward inside the fixed hole 17. When the support column 7 moves upward, it squeezes... The pressure seat 9 rises upwards. When the pressure seat 9 contacts the object, it pushes the object up. After the pressure seat 9 rises to a suitable height, the support assembly 10 moves the slider 21 towards the support column 7. When the ring seat 25 is misaligned with the opening 15, the ring seat 25 drives the threaded column 24 to rotate inside the threaded hole 23. The ring seat 25 rotates downwards and contacts the top of the support seat 4. After the ring seat 25 makes contact with the support seat 4, the direction of the limiting column 26 is adjusted, and the slider 21 is moved again, so that the limiting column 26 is inserted into the limiting hole 8. The internal support column 7 is limited, and the support tube 22 and the slider 21 cooperate to provide multi-point support for the extrusion seat 9. After the support column 7 is limited, the telescopic column 13 can retract and return to its original position. The support rod 6 is pulled out from the slot 28 again. After the support rod 6 is pulled out, the movable seat 2 moves downward and the support rod 6 is installed in the limiting groove 5 at the corresponding height through the fixing block 18 and the fixing rod 19. The limiting groove 5 provides a support fixing point for the support rod 6. The support rod 6 is distributed at both ends of the extrusion seat 9 and is used to lock and support both ends of the extrusion seat 9 again.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mechanical hydraulic jack, comprising a base (1), characterized in that: A support seat (4) is welded on the base (1). A movable seat (2) is movably installed between the support seat (4) and the base (1). A fixing groove (11) is opened on the side of the movable seat (2). The fixing groove (11) is fitted onto the support seat (4). A slot (28) is opened on the support seat (4). A limit groove (5) is opened on the inner wall of the slot (28). A support rod (6) is movably installed inside the slot (28). A fixing block (18) and a fixing rod (19) are welded to the side of the support rod (6).

2. The mechanical hydraulic jack according to claim 1, characterized in that: A jack (3) is fixedly installed on the movable seat (2), and a telescopic column (13) is movably installed on the jack (3). A limit ring (14) is fixed on the telescopic column (13).

3. The mechanical hydraulic jack according to claim 1, characterized in that: The top of the support base (4) has an opening (15) and a fixing hole (17). The fixing hole (17) is installed between the openings (15). A support column (7) is movably installed inside the fixing hole (17). One end of the support column (7) is fixed with a pressing seat (9).

4. A mechanical hydraulic jack according to claim 3, characterized in that: A groove (20) is provided on one side of the extrusion seat (9). A slider (21) is movably installed inside the groove (20). A support component (10) is fixedly installed on the slider (21). The support component (10) is movably installed inside the opening (15).

5. A mechanical hydraulic jack according to claim 3, characterized in that: The support column (7) has a limiting hole (8), and one end of the support column (7) has a connecting hole (27). The connecting hole (27) is in contact with one end of the telescopic column (13). The side of the opening (15) has a groove (16).

6. A mechanical hydraulic jack according to claim 4, characterized in that: The support assembly (10) includes a support tube (22), the inside of which is a threaded hole (23), and a threaded post (24) is rotatably installed inside the threaded hole (23). One end of the threaded post (24) is welded with a ring seat (25).

7. A mechanical hydraulic jack according to claim 6, characterized in that: A limiting post (26) is welded to one side of the ring seat (25). The limiting post (26) is movable and cooperates with the groove (16). One end of the limiting post (26) is movably installed inside the limiting hole (8).

8. A mechanical hydraulic jack according to claim 1, characterized in that: A connecting groove (12) is provided on the inner wall of the fixing groove (11), and one end of the fixing rod (19) is installed inside the connecting groove (12) through the limiting groove (5).

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