Double-speed hydraulic jack

Abstract

The utility model discloses a double-speed hydraulic jack which comprises a main body, four inserting holes are formed in the lower portion of the main body through a lower base of the main body, a first base is arranged in each inserting hole, each first base is in a screw rod shape, and a second base is arranged in each first base. The lower end of the first base is located in the inserting hole and connected with the inserting hole through friction force, and four limiting grooves are formed in the outer surface of the portion, located at the upper end of the main body base, of the first base. Therefore, steps can be simplified, and space is saved; in actual use, all operations can be realized only through the wrench and the lever of the jack, and an independent footing does not need to be adjusted, so that the adjusting time can be shortened, steps can be reduced, the operation difficulty of balancing can be reduced, and a worker can conveniently and quickly use the device.

Description

Technical Field

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

[0002] In patent application CN209567744U, a dual-speed hydraulic jack is included. The hydraulic jack has a piston tip threadedly connected to a lifting rod. A hexagonal stop A is welded to the top of the lifting rod, and a washer is rotatably connected to the top of the hexagonal stop A. The base of the hydraulic jack has stepped holes at each of its four corners. The inner wall of each stepped hole has an internal thread. Connecting rods are threadedly connected to corresponding positions on the inner walls of the four stepped holes. The bottoms of the four connecting rods are spherical. Each connecting rod has a pad hinged to its bottom, and each of the four connecting rods has a hexagonal stop block B welded to its top. A limit ring is welded to the left side wall of the hydraulic jack. The top of the base of the hydraulic jack and below the limit ring have a through hole with internal threads on the inner side wall of the through hole. A multi-functional handle is located on the left side of the hydraulic jack. The bottom of the multi-functional handle passes through the limit ring and connects to the internal threads in the through hole. A level A is fixed to the front top of the base of the hydraulic jack with fasteners, and a level B is fixed to the left top of the base of the hydraulic jack with fasteners. Advantages: When used outdoors on uneven surfaces, the dual-speed hydraulic jack can be removed from the toolbox and placed on the ground by pulling the multi-functional handle. The multi-functional handle is then rotated to remove it from the limiting ring. The hexagonal through-hole in the multi-functional handle is fitted into the hexagonal stop block B to adjust the height of the four connecting rods. By checking the level, the dual-speed hydraulic jack is leveled. The main rod of the multi-functional handle is then inserted into the operating hole to raise the plunger. When the plunger is at the appropriate position, the notch can be inserted into the outer wall of the hexagonal stop block A. The multi-functional handle can then be rotated to fine-tune the lifting height of the dual-speed hydraulic jack. This invention, utilizing a hinged and threaded structure, allows the jack to be used normally on uneven ground. By integrating multiple tools onto the multi-functional handle, the number of hydraulic jack parts is reduced. Furthermore, fixing the multi-functional handle to the hydraulic jack, acting as its handle, effectively prevents parts from being lost.

[0003] In the prior art, including the aforementioned patent, although it can be used on uneven ground, it requires adjusting the four legs in sequence and observing the level for a long time. This not only makes the adjustment slow, but also causes glare or insufficient brightness in strong or weak light environments, leading to leveling failure. It also has an adverse effect on the user's eyes, thus affecting the overall working stability of the jack. Utility Model Content

[0004] The purpose of this utility model is to provide a dual-speed hydraulic jack to solve the problems mentioned in the background art, such as the level being inconvenient to observe and the adjustment speed being slow.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-speed hydraulic jack, comprising a main body, with four insertion holes provided at the bottom of the main body via a lower base, and a base 1 disposed inside each insertion hole, the base 1 being screw-shaped, the lower end of the base 1 being located inside the insertion hole and connected to it by friction, and four limiting grooves being provided on the outer surface of the portion of the base 1 located at the upper end of the main body base.

[0006] Furthermore, the limiting groove is composed of a vertical portion at the top and an inclined portion at the bottom. A sleeve is provided around the limiting groove, and a protrusion is provided inside the lower end of the sleeve. The protrusion of the sleeve is located inside the limiting groove and is slidably connected to it.

[0007] Furthermore, a pull cable is fixedly provided at the upper end of the sleeve, a transparent tube is provided inside the sleeve, the lower end of the transparent tube is fixedly connected to the base, an end cap is provided at the upper end of the transparent tube, the pull cable is composed of a single strand and a multi-strand rope, and the single strand of the pull cable is located inside the transparent tube.

[0008] Furthermore, the multi-strand rope of the cable passes through the end cap and is fixedly connected to the sleeve. An iron weight is fixedly installed at one end of the cable inside the transparent tube. The diameter of the iron weight is smaller than that of the transparent tube. A magnet is installed at the lower end of the iron weight. The lower end of the magnet is fixedly connected to the base. The surface of the iron weight is coated with a fluorescent agent.

[0009] Furthermore, a base two is fixedly provided at the lower end of the main body. The base two is X-shaped. A limiting post is fixedly provided in the middle of the interior of the base two. There are four limiting posts in total. A sealing gasket is slidably provided on the outer surface of the limiting post.

[0010] Furthermore, the sealing gasket is frustum-shaped, and a bolt is engaged in the middle of the sealing gasket. The lower end of the bolt passes through the lower end of the base two, and the bolt is rotatably connected to the base two.

[0011] Furthermore, the second base is hollow, and four feet are slidably provided at the lower end of the second base. The upper end of the second base is connected to the hydraulic pipeline inside the main body.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this dual-speed hydraulic jack is reasonable and has the following advantages:

[0013] (1) By setting the base, sealing gasket and feet, it can better adapt to uneven ground and does not require additional road plate, pad block or other auxiliary parts. This simplifies the operation steps and saves the space required for transportation. In actual use, when adjusting the height of the feet, all operations can be achieved by using the lever of the wrench and jack itself. There is no need to adjust the position of the feet in a specific place. Under the action of hydraulic oil and the downward pressure during lifting, the four feet can adapt to the current ground by themselves. This can shorten the time required for adjustment, reduce the operation steps and reduce the difficulty of balancing operations, making it convenient for workers to use quickly. If the application scenario is road rescue, it can further reduce the risk caused by workers staying on the road and also avoid unnecessary deformation of the car wheel hub due to long-term pressure.

[0014] (2) With the help of the cable, transparent tube, iron weight and magnet, the worker can first use the jack body as a reference to keep the jack vertical and horizontal. Moreover, when used at night, the fluorescent agent on the surface of the iron weight can also provide convenience for observation in places with insufficient lighting. This can improve the efficiency of observation, avoid glare in strong light environment, and avoid the situation where it is not easy to observe in weak light environment. In addition, the iron weight can be moved to other positions of the main body, so as to avoid the situation where it is not easy to observe or cannot be observed in special circumstances. It is worth mentioning that when the iron weight is moved, the magnet can attract the iron weight, avoid knocking the transparent tube when moving, and thus extend the overall service life of the component and reduce unnecessary wear and tear. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic cross-sectional view of the transparent tube structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a cross-sectional view of the base structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the main body structure of this utility model from a bottom view;

[0020] Figure 6 This is a cross-sectional view of the base of this utility model.

[0021] In the diagram: 1. Main body; 2. Insertion hole; 3. Base 1; 4. Limiting groove; 5. Sleeve; 6. Cable; 7. Transparent tube; 8. End cap; 9. Iron weight; 10. Magnet; 11. Base 2; 12. Limiting post; 13. Sealing gasket; 14. Bolt; 15. Foot. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6 The present invention provides a technical solution as follows:

[0024] In this embodiment, a dual-speed hydraulic jack includes a main body 1. A socket 2 is provided on the lower base of the main body 1. There are four sockets 2. A base 3 is provided inside the socket 2. The base 3 is screw-shaped. The lower end of the base 3 is located inside the socket 2 and is connected to it by friction. A limiting groove 4 is provided on the outer surface of the part of the base 3 located at the upper end of the base of the main body 1. There are four limiting grooves 4.

[0025] In this embodiment, the limiting groove 4 is composed of a vertical part at the top and an inclined part at the bottom. A sleeve 5 is provided around the limiting groove 4. A protrusion is provided inside the lower end of the sleeve 5. The protrusion of the sleeve 5 is located inside the limiting groove 4 and is slidably connected to it.

[0026] In this embodiment, a cable 6 is fixedly provided at the upper end of the sleeve 5, a transparent tube 7 is provided on the inner side of the sleeve 5, the lower end of the transparent tube 7 is fixedly connected to the base 3, and an end cap 8 is provided at the upper end of the transparent tube 7. The cable 6 is composed of a single strand and a multi-strand rope, and the single strand of the cable 6 is located inside the transparent tube 7.

[0027] In this embodiment, the multi-strand rope of the cable 6 passes through the end cap 8 and is fixedly connected to the sleeve 5. An iron weight 9 is fixedly installed at one end of the cable 6 inside the transparent tube 7. The diameter of the iron weight 9 is smaller than that of the transparent tube 7. A magnet 10 is installed at the lower end of the iron weight 9. The lower end of the magnet 10 is fixedly connected to the base 3. The surface of the iron weight 9 is coated with a fluorescent agent.

[0028] In this embodiment, a base 2 11 is fixedly provided at the lower end of the main body 1. The base 2 11 is X-shaped. A limiting post 12 is fixedly provided in the middle of the interior of the base 2 11. There are four limiting posts 12 in total. A sealing gasket 13 is slidably provided on the outer surface of the limiting post 12.

[0029] In this embodiment, the sealing gasket 13 is frustum shaped, and a bolt 14 is engaged in the middle of the sealing gasket 13. The lower end of the bolt 14 passes through the lower end of the base 2 11, and the bolt 14 is rotatably connected to the base 2 11.

[0030] In this embodiment, the base 2 11 is hollow, and four feet 15 are slidably provided at the lower end of the base 2 11. The upper end of the base 2 11 is connected to the hydraulic pipeline inside the main body 1.

[0031] Working principle: When the equipment is used on uneven outdoor ground, firstly, use a wrench to turn bolt 14 to move sealing gasket 13 from the upper end of base 2 11 to the lower end, so that the hydraulic oil in the jack and the oil in base 2 11 can flow. Next, place the jack in the designated position, and by pressing the handle and observing the iron weight 9, adjust the jack body to be perpendicular to the ground and press it against the lower end of the lifting point. At this time, the jack only plays a "locking" role, neither lifting the object nor relying on the weight of the object to fix itself. After confirming that the feet 15 are in contact with the ground and fixed, continue to press the handle to pump hydraulic oil into the jack and base 2 11. The hydraulic oil pushes the jack column upward, while causing the hydraulic oil in base 2 11 to be evenly distributed to the feet 15 until all feet 15 are in complete contact with the ground and are stable. Finally, turn bolt 14 again to seal the circuit between base 2 11 and main body 1 using sealing gasket 13, and it can be used.

[0032] If the iron weight 9 cannot be directly observed or is inconvenient to observe due to environmental factors, pull up and rotate the sleeve 5 to lower the iron weight 9 so that it is captured by the magnet 10. Then pull out the transparent tube 7 and the base 3, insert them into other suitable sockets 2, and finally rotate the sleeve 5 and push it down to lift the iron weight 9 again. It can then be used again. It is worth noting that the observation can be completed by observing the iron weight 9 and the jack body from the front and the side, respectively. The specific observation positions are not fixed, but the included angle between the two sides must be 90 degrees.

[0033] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dual-speed hydraulic jack, comprising a main body (1), characterized in that, The main body (1) has four insertion holes (2) provided below it through the lower base of the main body (1). A base (3) is provided inside the insertion hole (2). The base (3) is screw-shaped. The lower end of the base (3) is located inside the insertion hole (2) and connected to it by friction. A limiting groove (4) is provided on the outer surface of the part of the base (3) located at the upper end of the base of the main body (1). There are four limiting grooves (4).

2. The dual-speed hydraulic jack according to claim 1, characterized in that, The limiting groove (4) consists of a vertical part at the top and an inclined part at the bottom. A sleeve (5) is provided around the limiting groove (4). A protrusion is provided inside the lower end of the sleeve (5). The protrusion of the sleeve (5) is located inside the limiting groove (4) and is slidably connected to it.

3. A dual-speed hydraulic jack according to claim 2, characterized in that, The upper end of the sleeve (5) is fixedly provided with a cable (6), and the inner side of the sleeve (5) is provided with a transparent tube (7). The lower end of the transparent tube (7) is fixedly connected to the base (3). The upper end of the transparent tube (7) is provided with an end cap (8). The cable (6) is composed of a single strand and a multi-strand rope. The single strand of the cable (6) is located inside the transparent tube (7).

4. A dual-speed hydraulic jack according to claim 3, characterized in that, The multiple strands of the cable (6) pass through the end cap (8) and are fixedly connected to the sleeve (5). An iron weight (9) is fixedly installed at one end of the cable (6) inside the transparent tube (7). The diameter of the iron weight (9) is smaller than that of the transparent tube (7). A magnet (10) is installed at the lower end of the iron weight (9). The lower end of the magnet (10) is fixedly connected to the base (3). The surface of the iron weight (9) is coated with a fluorescent agent.

5. A dual-speed hydraulic jack according to claim 1, characterized in that, The lower end of the main body (1) is fixedly provided with a base two (11), the base two (11) is set in an X shape, and a limiting post (12) is fixedly provided in the middle of the interior of the base two (11). There are four limiting posts (12) in total, and a sealing gasket (13) is slidably provided on the outer surface of the limiting post (12).

6. A dual-speed hydraulic jack according to claim 5, characterized in that, The sealing gasket (13) is frustum shaped, and a bolt (14) is engaged in the middle of the sealing gasket (13). The lower end of the bolt (14) passes through the lower end of the base (11), and the bolt (14) is rotatably connected to the base (11).

7. A dual-speed hydraulic jack according to claim 6, characterized in that, The second base (11) is hollow, and the lower end of the second base (11) is slidably provided with feet (15). There are four feet (15) in total. The upper end of the second base (11) is connected to the hydraulic pipeline in the main body (1).

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