Combined hydraulic jack

Abstract

The utility model provides a combined type hydraulic jack which comprises a jack body and a supporting structure, the jack body comprises an ejection shaft and a base, one end of the ejection shaft is provided with an extension structure, the extension structure corresponds to the supporting structure, the supporting structure comprises two supporting frames, each supporting frame comprises a fixing base, a first supporting rod and a telescopic rod, a positioning ring is arranged at one end of the telescopic rod and corresponds to the jack body, and the first supporting rod corresponds to the extension structure. According to the jack, the supporting frames are installed on the two sides of the jack body, the jack body can be positioned, force borne by the jack body can be dispersed, the service life of the jack body is prolonged, it is guaranteed that the jack body cannot move in the using process, and the jacking safety is guaranteed; and the height of the jack body can be increased, so that a good object can be jacked up, and the application range of the device is expanded.

Description

Technical Field

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

[0002] Hydraulic jacks are frequently used in daily life, construction, and disaster relief to lift or expand heavy objects and create a working space. For example, patent CN202897923U discloses a combined hydraulic jack, characterized by at least one support tube at the upper end of the jack's rod, with an external threaded rod integrally installed at the lower end of the support tube. The upper end of the jack is screwed to the external threaded rod, and the upper end of the support tube has an internal threaded hole for screwing to the external threaded rod. The advantage is that because the upper end of the jack has at least one support tube, the lifting height of the hydraulic jack can be increased by installing the support tube on the jack when the lifting height is insufficient. However, all the weight acts on the jack, and when the object being lifted is heavy, it can easily lead to excessive internal pressure, affecting the jack's service life.

[0003] Therefore, this utility model provides a combined hydraulic jack. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a combined hydraulic jack to solve the problems mentioned in the background technology. This utility model can position the jack body and disperse the force on the jack body, extend the service life of the jack body, ensure that the jack body will not move during use, and ensure the safety of lifting.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a combined hydraulic jack, comprising a jack body and a support structure. The jack body includes an ejector shaft and a base. One end of the ejector shaft is equipped with an extension structure, which corresponds to the support structure. The support structure includes two support frames, each including a fixed seat, a first support rod, and a telescopic rod. One end of the telescopic rod is equipped with a positioning ring, which corresponds to the jack body. The first support rod corresponds to the extension structure.

[0006] Furthermore, the lower side of the base is rotatably fitted with multiple casters.

[0007] Furthermore, the extension structure includes an extension rod, one end of which is fixed with a support plate and a threaded head, and one end of the ejector shaft is provided with a threaded groove, which corresponds to the threaded head.

[0008] Furthermore, a second support rod is fixed on the fixed base, the second support rod is rotatably connected to the first support rod, and one end of the first support rod is in contact with the support plate.

[0009] Furthermore, one end of the second support rod is rotatably fitted with a pivot, which is fixedly connected to the first support rod.

[0010] Furthermore, the telescopic rod is fixedly connected to the second support rod, and one end of the telescopic rod is fixedly connected to the positioning ring.

[0011] Furthermore, the two fixed seats are located on both sides of the jack body, and a ground gripping block is fixed on the lower side of the fixed seats.

[0012] Furthermore, the gripping block has an inclined inverted triangular structure.

[0013] The beneficial effects of this utility model are as follows: This utility model is a combined hydraulic jack, which includes a jack body; a support frame; a first support rod; and an extension rod.

[0014] Installing support frames on both sides of the jack body can position the jack body, distribute the force on the jack body, extend the service life of the jack body, ensure that the jack body will not move during use, and ensure the safety of lifting. Installing an extension structure at one end of the ejector shaft can increase the height of the jack body, thereby enabling the lifting of heavier objects and expanding the applicability of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of a combined hydraulic jack according to the present invention;

[0016] Figure 2 This is a schematic diagram of the assembly three-dimensional structure of the support frame in a combined hydraulic jack according to the present invention.

[0017] Figure 3 for Figure 2 The diagram at point A in the middle;

[0018] Figure 4 This is an exploded view of a combined hydraulic jack according to the present invention.

[0019] In the diagram: 1. Jack body; 2. Ejector shaft; 3. Threaded groove; 4. Threaded head; 5. Extension rod; 6. Support plate; 7. Base; 8. Support frame; 9. First support rod; 10. Fixed seat; 11. Rotating shaft; 12. Second support rod; 13. Telescopic rod; 14. Positioning ring; 15. Ground gripping block. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a combined hydraulic jack, including a jack body 1 and a support structure. The jack body 1 includes an ejector shaft 2 and a base 7. One end of the ejector shaft 2 is equipped with an extension structure, which corresponds to the support structure. The support structure includes two support frames 8. Each support frame 8 includes a fixed seat 10, a first support rod 9, and a telescopic rod 13. One end of the telescopic rod 13 is equipped with a positioning ring 14, which corresponds to the jack body 1. The first support rod 9 corresponds to the extension structure.

[0022] In this embodiment, the base 7 has multiple rotatable wheels on its lower side.

[0023] Specifically, the jack body 1 is usually quite heavy, so it can be moved by the casters, making it more convenient to use.

[0024] The extension structure includes an extension rod 5, one end of which is fixed with a support plate 6 and a threaded head 4, and one end of the ejector shaft 2 is provided with a threaded groove 3, which corresponds to the threaded head 4.

[0025] Specifically, when it is necessary to extend the jack body 1, select an extension rod 5 of appropriate length, screw the threaded head 4 of the extension rod 5 into the threaded groove 3, and the extension rod 5 can be connected to the ejector shaft 2, thereby increasing the initial height of the jack body 1.

[0026] A second support rod 12 is fixed on the fixed base 10. The second support rod 12 is rotatably connected to the first support rod 9. One end of the first support rod 9 is in contact with the support plate 6. One end of the second support rod 12 is rotatably fitted with a rotating shaft 11. The rotating shaft 11 is fixedly connected to the first support rod 9. The telescopic rod 13 is fixedly connected to the second support rod 12. One end of the telescopic rod 13 is fixedly connected to the positioning ring 14. The two fixed bases 10 are located on both sides of the jack body 1. A gripping block 15 is fixed on the lower side of the fixed base 10. The gripping block 15 has an inclined inverted triangular structure.

[0027] Specifically, when it is necessary to support the jack body 1, the object is lifted by the jack body 1, the support frame 8 is placed on both sides of the jack body 1, and then the first support rod 9 is rotated so that the first support rod 9 contacts the support plate 6. The support frame 8 is pushed forward so that the positioning ring 14 contacts the jack body 1, thus positioning the jack body 1. In addition, the first support rod 9 can distribute the force on the lifting shaft 2 and extend the service life of the device.

[0028] When the object is pressed down, the pressure is transmitted to the fixed seat 10. At this time, the gripping block 15 can ensure that the fixed seat 10 will not be pushed outward, thus ensuring the stability of the fixed seat 10.

[0029] 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 combined hydraulic jack, comprising a jack body (1) and a support structure, characterized in that, The jack body (1) includes an ejector shaft (2) and a base (7). One end of the ejector shaft (2) is equipped with an extension structure, which corresponds to the support structure. The support structure includes two support frames (8). Each support frame (8) includes a fixed seat (10), a first support rod (9), and a telescopic rod (13). One end of the telescopic rod (13) is equipped with a positioning ring (14), which corresponds to the jack body (1). The first support rod (9) corresponds to the extension structure.

2. The combined hydraulic jack according to claim 1, characterized in that: The base (7) has multiple rotatable wheels on its underside.

3. The combined hydraulic jack according to claim 1, characterized in that: The extension structure includes an extension rod (5), one end of which is fixed with a support plate (6) and a threaded head (4), and one end of the ejector shaft (2) is provided with a threaded groove (3), which corresponds to the threaded head (4).

4. A combined hydraulic jack according to claim 3, characterized in that: A second support rod (12) is fixed on the fixed base (10). The second support rod (12) is rotatably connected to the first support rod (9). One end of the first support rod (9) is in contact with the support plate (6).

5. A combined hydraulic jack according to claim 4, characterized in that: One end of the second support rod (12) is rotatably fitted with a rotating shaft (11), and the rotating shaft (11) is fixedly connected to the first support rod (9).

6. A combined hydraulic jack according to claim 4, characterized in that: The telescopic rod (13) is fixedly connected to the second support rod (12), and one end of the telescopic rod (13) is fixedly connected to the positioning ring (14).

7. A combined hydraulic jack according to claim 1, characterized in that: The two fixed seats (10) are located on both sides of the jack body (1), and a gripping block (15) is fixed on the lower side of the fixed seat (10).

8. A combined hydraulic jack according to claim 7, characterized in that: The gripping block (15) has an inclined inverted triangular structure.

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