A hydraulic jack

Abstract

This utility model discloses a hydraulic jack, including a base. A hydraulic cylinder body is fixedly mounted in the middle of the top of the base, and a pump body is fixedly mounted on one side of the top of the base. The pump body is connected to the input end of the hydraulic cylinder body. A liftable plunger is provided on the top of the pump body. A connecting sleeve is hinged to the top of the plunger through a connecting piece. A handle is detachably and fixedly installed inside the connecting sleeve. A sleeve is nested at the end of the handle, and a grip is fixedly provided at the end of the sleeve. The hydraulic jack of this utility model has a detachable and fixed installation between the handle and the connecting sleeve, which facilitates the replacement of the handle. At the same time, the handle and the sleeve are telescopically adjustable, which allows for adjustment of the length of the operating rod when using the hydraulic jack, thereby achieving a labor-saving effect.

Description

Technical Field

[0001] This utility model relates to the field of jack technology, and in particular to a hydraulic jack. Background Technology

[0002] A hydraulic jack is a widely used hydraulic support structure. Its working principle involves using hydraulic fluid as the working medium, transmitting motion through changes in sealed volume, and transmitting power through the internal pressure of the fluid. Essentially, a hydraulic transmission device is an energy conversion device.

[0003] A search revealed that patent number "CN211664628U" discloses an easily adjustable hydraulic jack, belonging to the field of hydraulic jack technology. The key technical features include a fixed plate and connecting wires. An oil reservoir is fixedly connected to one side of the upper surface of the fixed plate, and a jack housing is fixedly connected to the other side of the upper surface of the fixed plate. The jack's lifting height can be better adjusted via a controller and hydraulic pump, allowing for finer adjustments and enabling more precise operation.

[0004] The aforementioned hydraulic jack can achieve a small range of adjustments. However, during use, the handle structure is relatively simple and cannot be disassembled or adjusted in length, making it quite laborious to use. Therefore, we have designed a hydraulic jack to solve the above technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulic jack to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic jack, including a base, a hydraulic cylinder body fixedly disposed at the middle of the top of the base, a pump body fixedly disposed on one side of the top of the base, the pump body being connected to the input end of the hydraulic cylinder body, a liftable plunger disposed at the top of the pump body, a connecting sleeve hinged to the top of the plunger via a connecting piece, a handle being detachably and fixedly installed inside the connecting sleeve, a sleeve being nested at the end of the handle, and a grip being fixedly disposed at the end of the sleeve.

[0007] Preferably, the end of the handle is provided with a mounting groove, and L-shaped pressure blocks are inserted and connected to both sides of the mounting groove. Multiple buckles are fixedly provided at equal intervals on the surface of the L-shaped pressure blocks. Multiple buckle slots are provided at equal intervals on both sides of the inner wall of the connecting sleeve. The multiple buckles are engaged and connected with the corresponding buckle slots.

[0008] Preferably, the size of the buckle block is adapted to the size of the buckle groove, and a return spring is fixedly installed between the two L-shaped pressure blocks.

[0009] Preferably, the surface of the grip is fixedly provided with uniformly distributed anti-slip texture, the inside of the grip is provided with a cavity, two limiting rods are fixedly installed on both sides of the inner wall of the cavity, a lead screw seat is slidably connected between the two limiting rods, a trapezoidal lead screw is rotated at the center of both sides of the inner wall of the cavity, the trapezoidal lead screw is threadedly connected to the center of the lead screw seat, and the end of the trapezoidal lead screw extends through the cavity to the outside and is fixedly installed with a rotating handwheel.

[0010] Preferably, two connecting rods are fixedly provided on the side of the lead screw seat, and the two connecting rods pass through the sleeve and are fixedly connected to the end of the handle.

[0011] Preferably, the bottom end of the base is fixedly provided with an anti-slip pad, and the surface of the anti-slip pad is provided with evenly distributed anti-slip textures.

[0012] The technical effects and advantages of this utility model are as follows: the handle and the connecting sleeve of the hydraulic jack can be detachably fixed, which facilitates the replacement of the handle. At the same time, the handle and the sleeve can be telescopically connected, which allows the length of the operating rod to be adjusted when using the hydraulic jack, thereby achieving the effect of saving effort. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a hydraulic jack according to the present invention.

[0014] Figure 2 This is a schematic diagram of the connection structure between the connecting sleeve and the handle of a hydraulic jack according to this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the handle of a hydraulic jack according to the present invention.

[0016] In the diagram: 1. Base; 2. Hydraulic cylinder body; 3. Pump body; 4. Piston; 5. Connecting sleeve; 6. L-shaped pressure block; 7. Handle; 8. Sleeve; 9. Grip; 10. Snap groove; 11. Snap block; 12. Connecting piece; 13. Return spring; 14. Mounting groove; 15. Trapezoidal lead screw; 16. Rotary handwheel; 17. Lead screw seat; 18. Limit rod; 19. Connecting rod. Detailed Implementation

[0017] 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.

[0018] Example 1 This utility model provides, for example Figure 1-3The hydraulic jack shown includes a base 1, a hydraulic cylinder body 2 fixedly mounted at the middle of the top of the base 1, a pump body 3 fixedly mounted on one side of the top of the base 1, the pump body 3 being connected to the input end of the hydraulic cylinder body 2, a liftable plunger 4 being mounted on the top of the pump body 3, a connecting sleeve 5 being hinged to the top of the plunger 4 via a connecting piece 12, a handle 7 being detachably and fixedly mounted inside the connecting sleeve 5, a sleeve 8 being nested at the end of the handle 7, and a grip 9 being fixedly mounted at the end of the sleeve 8.

[0019] Specifically, the handle 7 of the hydraulic jack is detachably fixed to the connecting sleeve 5, which facilitates the replacement of the handle 7. At the same time, the handle 7 and the sleeve 8 are telescopically adjustable, which allows the length of the operating rod to be adjusted when using the hydraulic jack, thereby achieving the effect of saving effort.

[0020] according to Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses a hydraulic jack. The end of the handle 7 is provided with an installation groove 14. L-shaped pressure blocks 6 are inserted and connected to both sides of the installation groove 14. Multiple fasteners 11 are fixedly provided at equal intervals on the surface of the L-shaped pressure blocks 6. Multiple fastening slots 10 are provided at equal intervals on both sides of the inner wall of the connecting sleeve 5. Multiple fasteners 11 are fastened and connected to the corresponding fastening slots 10. The size of the fasteners 11 is adapted to the size of the fastening slots 10. A return spring 13 is fixedly installed between two L-shaped pressure blocks 6.

[0021] Specifically, the L-shaped pressure block 6 is moved by the return spring 13, so that the L-shaped pressure block 6 can be engaged and disengaged from the buckle groove 10, thereby facilitating the connection and disassembly between the handle 7 and the connecting sleeve 5, and facilitating the disassembly and replacement of the handle 7.

[0022] according to Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses a hydraulic jack. The surface of the handle 9 is fixedly provided with uniformly distributed anti-slip texture. The handle 9 has a cavity inside. Two limiting rods 18 are fixedly installed on both sides of the inner wall of the cavity. A lead screw seat 17 is slidably connected between the two limiting rods 18. A trapezoidal lead screw 15 is rotated at the center of both sides of the inner wall of the cavity. The trapezoidal lead screw 15 is threadedly connected to the center of the lead screw seat 17. The end of the trapezoidal lead screw 15 extends through the cavity to the outside and is fixedly installed with a rotating handwheel 16. Two connecting rods 19 are fixedly provided on the side of the lead screw seat 17. The two connecting rods 19 pass through the sleeve 8 and are fixedly connected to the end of the handle 7.

[0023] Specifically, rotating the handwheel 16 drives the trapezoidal lead screw 15 to rotate, which in turn drives the lead screw seat 17 to move. The movement of the lead screw seat 17 then pushes the connecting rod 19 to move, which in turn pushes the handle 7 out of the sleeve 8, thereby adjusting the length of the operating lever.

[0024] An anti-slip pad is fixedly provided at the bottom of the base 1, and the surface of the anti-slip pad has evenly distributed anti-slip textures. Specifically, the anti-slip pad provided on the base 1 improves the stability of the hydraulic jack.

[0025] The working principle of this utility model is as follows: When using this hydraulic jack, first install the handle 7, manually press the L-shaped pressure block 6 so that the L-shaped pressure block 6 is pressed into the installation groove 14, then manually insert the end of the handle 7 into the sleeve 8, manually release the L-shaped pressure block 6, and then the return spring 13 pushes the two L-shaped pressure blocks 6 to return to their original positions, so that the buckle 11 on the surface of the L-shaped pressure block 6 engages with the buckle groove 10 opened in the inner wall of the connecting sleeve 5, completing the connection between the connecting sleeve 5 and the handle 7. Then manually rotate the rotating handwheel 16, which drives the trapezoidal screw 15 to rotate, which drives the screw seat 17 to move, which drives the connecting rod 19 to move, which pushes the handle 7 and the sleeve 8 to move outward, thereby adjusting the length of the operating rod, making it more labor-saving when using this hydraulic jack.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hydraulic jack, comprising a base (1), characterized in that, A hydraulic cylinder body (2) is fixedly provided at the middle of the top of the base (1). A pump body (3) is fixedly provided on one side of the top of the base (1). The pump body (3) is connected to the input end of the hydraulic cylinder body (2). A liftable plunger (4) is provided on the top of the pump body (3). A connecting sleeve (5) is hinged to the top of the plunger (4) through a connecting piece (12). A handle (7) is detachably fixedly installed inside the connecting sleeve (5). A sleeve (8) is nested at the end of the handle (7). A grip (9) is fixedly provided at the end of the sleeve (8).

2. A hydraulic jack according to claim 1, characterized in that, The end of the handle (7) is provided with an installation groove (14), and L-shaped pressure blocks (6) are inserted and connected on both sides of the installation groove (14). Multiple fasteners (11) are fixedly provided on the surface of the L-shaped pressure block (6) at equal intervals. Multiple fastening slots (10) are provided on both sides of the inner wall of the connecting sleeve (5) at equal intervals. Multiple fasteners (11) are fastened and connected to the corresponding fastening slots (10).

3. A hydraulic jack according to claim 2, characterized in that, The size of the buckle (11) is adapted to the size of the buckle groove (10), and a return spring (13) is fixedly installed between the two L-shaped pressure blocks (6).

4. A hydraulic jack according to claim 1, characterized in that, The surface of the grip (9) is fixedly provided with uniformly distributed anti-slip textures. The grip (9) has a cavity inside. Two limiting rods (18) are fixedly installed on both sides of the inner wall of the cavity. A lead screw seat (17) is slidably connected between the two limiting rods (18). A trapezoidal lead screw (15) is rotated at the center of both sides of the inner wall of the cavity. The trapezoidal lead screw (15) is threadedly connected to the center of the lead screw seat (17). The end of the trapezoidal lead screw (15) extends through the cavity to the outside and is fixedly installed with a rotating handwheel (16).

5. A hydraulic jack according to claim 4, characterized in that, Two connecting rods (19) are fixedly provided on the side of the lead screw seat (17), and the two connecting rods (19) pass through the sleeve (8) and are fixedly connected to the end of the handle (7).

6. A hydraulic jack according to claim 1, characterized in that, The base (1) is fixedly provided with an anti-slip pad at its bottom end, and the surface of the anti-slip pad is provided with uniformly distributed anti-slip patterns.

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