Small hydraulic jack

Abstract

The utility model discloses a small hydraulic jack which comprises a base and an air cylinder, the top of the base is provided with the air cylinder, the top of the air cylinder is provided with a hydraulic telescopic rod, the top of the hydraulic telescopic rod is provided with a rubber flat plate, the top of the rubber flat plate is provided with a supporting head, and the side face of the supporting head is connected with a clamping plate. Clamping blocks are arranged in the clamping plates, clamping grooves are formed in the outer sides of the hydraulic telescopic rods, and the clamping blocks are embedded in the clamping grooves. According to the small hydraulic jack, the top of the hydraulic telescopic rod is provided with a groove, a rubber flat plate, a supporting head, a clamping plate, a clamping block and other structures, the clamping block in the clamping plate on the side face of the supporting head is taken out of the hydraulic telescopic rod, the rubber flat plate is embedded in the groove, and the clamping block on the side face of the clamping plate is embedded in the side face of the hydraulic telescopic rod; in this way, the structure with the concave structure can be used, switching between the supporting head and the rubber flat plate can be achieved during use, and operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of jacks, and particularly relates to a small hydraulic jack. Background Art

[0002] A small hydraulic jack is a portable hydraulic tool with a simple structure and convenient and flexible operation. The jack mainly utilizes Pascal's law in hydrostatics, uses oil or other liquids, and acts on the lifted heavy object on the supporting surface through liquid pressure, so as to realize lifting, lowering and rotating movements. The small hydraulic jack has the advantages of large lifting capacity, short stroke, high efficiency, stable and reliable operation, etc. in lifting operations.

[0003] The following problems exist in the application of the existing small hydraulic jacks on the market:

[0004] 1. In the actual use process of traditional small hydraulic jacks, the internal structure of the jack is usually assembled with a hydraulic telescopic rod structure. The top is usually either flat or concave. When in use, only the corresponding model can be selected, resulting in the inability to switch between concave and flat heads for use, so it is not convenient enough when in use.

[0005] 2. When most small hydraulic jacks are applied, the operating rod structure of the small hydraulic jack is usually fixed. Once it is necessary to move the device body to the bottom of a deeper object during use, it is not convenient for maintenance personnel to operate, so it is not convenient to extend the holding structure during application. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a small hydraulic jack to solve the technical problems put forward in the background art.

[0007] To achieve the above purpose, the specific technical solution of the utility model is as follows: A small hydraulic jack includes a base and a cylinder. A cylinder is provided on the top of the base. A hydraulic telescopic rod is provided on the top of the cylinder. A rubber flat plate is provided on the top of the hydraulic telescopic rod. A support head is provided on the top of the rubber flat plate. A clamping plate is connected to the side of the support head. A clamping block is provided inside the clamping plate. A card slot is opened on the outside of the hydraulic telescopic rod. The clamping block is embedded inside the card slot. A groove is provided on the top of the support head.

[0008] Preferably, a first internal threaded cylinder is provided on the side of the cylinder. A pump body is provided on the top of the base. A plunger rod is provided on the top of the pump body. A second internal threaded cylinder is provided above the plunger rod. A threaded rod is threadedly connected inside the first internal threaded cylinder. An operating rod is provided on one side of the threaded rod. The threaded rod is threadedly connected to the second internal threaded cylinder.

[0009] Preferably, a connecting plate is fixedly connected to the outside of the second internal thread cylinder. There are two groups of the connecting plates, and a cylinder body is provided on the other side of the connecting plates.

[0010] Preferably, a plate body is provided at the bottom of the cylinder body, a support rod is provided at the top of the base, a plunger rod is provided at the top of the pump body, and the plate body is connected to the support rod and the plunger rod through a shaft rod.

[0011] Preferably, the side of the cylinder is connected to a vertical plate. There are three groups of the vertical plates, and a first internal thread cylinder is provided on the side of the vertical plates.

[0012] Preferably, a groove is opened at the top of the hydraulic telescopic rod, and a rubber flat plate is provided inside the groove.

[0013] A small hydraulic jack of the present utility model has the following advantages:

[0014] 1. For this small hydraulic jack, by providing structures such as a groove, a rubber flat plate, a support head, a clamping plate, a clamping block, etc. at the top of the hydraulic telescopic rod, it can be used by replacing the flat head and the concave head. When the flat head needs to be used, the clamping block inside the clamping plate on the side of the support head is taken out from the outside of the hydraulic telescopic rod, and the rubber flat plate is embedded inside the groove, so that the small hydraulic jack with a flat head structure can be used. Secondly, when the concave head needs to be used, the clamping block on the side of the clamping plate is embedded on the side of the hydraulic telescopic rod, so that the structure with a concave structure can be used. Therefore, it can be switched between the support head and the rubber flat plate during use, and the operation is relatively convenient;

[0015] 2. For this small hydraulic jack, by installing structures such as a cylinder body, a second internal thread cylinder, a threaded rod, an operating rod, a first internal thread cylinder, etc. on the top of the plate body, the structure of the operating rod can be extended according to the actual situation. When it is necessary to move the small hydraulic jack to a deeper interior for operation, only need to turn the threaded rod inside the first internal thread cylinder and thread it with the second internal thread cylinder inside the cylinder body by the staff, so that the extended length can be selected according to the actual situation, and it is convenient to extend the holding structure during application. 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 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 Schematic diagram of the operating rod structure of the present utility model;

[0019] Figure 3 Schematic diagram of the rubber flat plate structure of the present utility model;

[0020] Figure 4 Schematic diagram of the second internal thread cylinder structure of the present utility model.

[0021] Explanation of the markings in the figure: 1. Base; 2. Pump body; 3. Cylinder; 4. Vertical plate; 5. Operating rod; 6. Threaded rod; 7. First internal thread cylinder; 8. Second internal thread cylinder; 9. Support rod; 10. Plate body; 11. Plunger rod; 12. Cylinder body; 13. Connecting plate; 14. Hydraulic telescopic rod; 15. Support head; 16. Clamp; 17. Card slot; 18. Card block; 19. Rubber flat plate; 20. Embedded groove; 21. Groove. Specific embodiments

[0022] In the following, 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 descriptions are considered to be exemplary in nature 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 indicating 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, "a plurality" means two or more unless otherwise specifically defined.

[0025] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and 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] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a small hydraulic jack of the utility model in conjunction with the accompanying drawings.

[0028] like Figures 1-4 As shown, a small hydraulic jack of the utility model comprises a base 1 and a cylinder 3. The top of the base 1 is provided with a cylinder 3. The top of the cylinder 3 is provided with a hydraulic telescopic rod 14. The top of the hydraulic telescopic rod 14 is provided with a rubber plate 19. The top of the rubber plate 19 is provided with a support head 15. The side of the support head 15 is connected to a clamping plate 16. The inside of the clamping plate 16 is provided with a card block 18. The outer side of the hydraulic telescopic rod 14 is provided with a card slot 17. Due to the installation of the card slot 17, it is convenient to embed the card block 18 on the outside of the hydraulic telescopic rod 14, and the card block 18 is embedded in the inside of the card slot 17. The top of the support head 15 is provided with a groove 21. By arranging the groove 21, the rubber plate 19, the support head 15, the clamping plate 16, and the card block 18 on the top of the hydraulic telescopic rod 14, it is possible to switch between the support head 15 and the rubber plate 19 during use, and the operation is also relatively convenient.

[0029] A first internally threaded barrel 7 is provided on the side of the cylinder 3, a pump body 2 is provided on the top of the base 1, a plunger rod 11 is provided on the top of the pump body 2, a second internally threaded barrel 8 is provided above the plunger rod 11, the internal thread of the first internally threaded barrel 7 is connected to a threaded rod 6, an operating rod 5 is provided on one side of the threaded rod 6, and the threaded rod 6 is threadedly connected to the second internally threaded barrel 8. By installing the second internally threaded barrel 8, the threaded rod 6, the operating rod 5 and the first internally threaded barrel 7 on the top of the plate body 10, the extension length can be selected according to the actual situation, and the holding structure can be conveniently extended when applied.

[0030] The outer part of the second internal thread cylinder 8 is fixedly connected to the connecting plate 13. There are two groups of the connecting plates 13. On the other side of the connecting plate 13, there is a cylinder body 12. Due to the presence of the connecting plate 13, it is convenient to connect the second internal thread cylinder 8 with the cylinder body 12.

[0031] At the bottom of the cylinder body 12, there is a plate body 10. At the top of the base 1, there is a support rod 9. At the top of the pump body 2, there is a plunger rod 11. The plate body 10 connects the support rod 9 and the plunger rod 11 through a shaft rod. Due to the presence of the plate body 10, it is convenient to connect the support rod 9 and the plunger rod 11 through the shaft rod.

[0032] The side of the cylinder 3 is connected to the vertical plate 4. There are three groups of the vertical plates 4. On the side of the vertical plate 4, there is a first internal thread cylinder 7. Due to the presence of the vertical plate 4, it is convenient to install the first internal thread cylinder 7 on the outside of the cylinder 3.

[0033] At the top of the hydraulic telescopic rod 14, an embedding groove 20 is opened. Inside the embedding groove 20, there is a rubber flat plate 19. Due to the presence of the embedding groove 20, it is convenient to replace the rubber flat plate 19.

[0034] Working principle of the small hydraulic jack: When using the small hydraulic jack, first move the small hydraulic jack to the designated position, and then the user takes it and moves it. After moving to the designated position, place the base 1 at the bottom on the ground. The top of the base 1 is composed of a pump body 2, a cylinder 3, a plunger rod 11, and a hydraulic telescopic rod 14. However, in order to facilitate the replacement between the small hydraulic jack with a flat head and a recessed head, a convenient replacement structure is installed. By providing a groove 21, a rubber flat plate 19, a support head 15, a clamping plate 16, and a clamping block 18 at the top of the hydraulic telescopic rod 14. When a flat head is needed for use, take out the clamping block 18 inside the clamping plate 16 on the side of the support head 15 from the card slot 17 outside the hydraulic telescopic rod 14, and then take out the rubber flat plate 19 and inlay it inside the groove 21. In this way, the small hydraulic jack with a flat head structure can be used. Secondly, when a recessed head is needed for use, first inlay the clamping block 18 on the side of the clamping plate 16 inside the card slot 17. In this way, the structure with a recessed structure can be used, and it can be switched between the support head 15 and the rubber flat plate 19 during use, and the operation is relatively convenient. Since the situations of using the small hydraulic jack are different, in order to facilitate use according to different situations, a structure for facilitating the extension of the operating rod 5 is installed. By installing a cylinder body 12, a second internal thread cylinder 8, a threaded rod 6, an operating rod 5, and a first internal thread cylinder 7 on the top of the plate body 10, connecting the second internal thread cylinder 8 through a vertical plate 4 on the outside of the cylinder 3. Secondly, install the plunger rod 11 on the top of the pump body 2, and at the same time, connect the plunger rod 11 and the support rod 9 through a shaft rod to connect the plate body 10. Install the cylinder body 12 on the top of the plate body 10, and connect the second internal thread cylinder 8 structure inside the cylinder body 12 through an adapter plate 13. When it is necessary to move the small hydraulic jack to a deeper interior for operation, first turn the threaded rod 6 inside the first internal thread cylinder 7, and then the staff thread-connects it with the second internal thread cylinder 8 inside the cylinder body 12. In this way, the extended length can be selected according to the actual situation, which is convenient for extending the operating rod 5 during application, and the operation during disassembly and assembly is also relatively simple.

[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 this application belong to the scope protected by the present utility model.

Claims

1. A small hydraulic jack, comprising a base (1) and a cylinder (3), the top of the base (1) is provided with the cylinder (3), and it is characterized in that: The top of the cylinder (3) is provided with a hydraulic telescopic rod (14). The top of the hydraulic telescopic rod (14) is provided with a rubber flat plate (19). The top of the rubber flat plate (19) is provided with a support head (15). The side of the support head (15) is connected to a clamping plate (16). The inside of the clamping plate (16) is provided with a clamping block (18). A clamping groove (17) is formed on the outside of the hydraulic telescopic rod (14). The clamping block (18) is embedded inside the clamping groove (17). The top of the support head (15) is provided with a groove (21).

2. The small hydraulic jack according to claim 1, characterized in that: A first internal thread cylinder (7) is provided on the side of the cylinder (3). A pump body (2) is provided on the top of the base (1). A plunger rod (11) is provided on the top of the pump body (2). A second internal thread cylinder (8) is provided above the plunger rod (11). A threaded rod (6) is threadedly connected inside the first internal thread cylinder (7). An operating rod (5) is provided on one side of the threaded rod (6). The threaded rod (6) is threadedly connected to the second internal thread cylinder (8).

3. The small hydraulic jack according to claim 2, wherein: The outside of the second internal thread cylinder (8) is fixedly connected to an adapter plate (13). The number of the adapter plates (13) is two groups. A cylinder body (12) is provided on the other side of the adapter plate (13).

4. The small hydraulic jack according to claim 3, characterized in that: A plate body (10) is provided at the bottom of the cylinder body (12). A support rod (9) is provided on the top of the base (1). The plate body (10) is connected to the support rod (9) and the plunger rod (11) through a shaft rod.

5. The small hydraulic jack according to claim 2, wherein: The side of the cylinder (3) is connected to a vertical plate (4). The number of the vertical plates (4) is three groups. A first internal thread cylinder (7) is provided on the side of the vertical plate (4).

6. The small hydraulic jack according to claim 1, characterized in that: A slot (20) is formed on the top of the hydraulic telescopic rod (14). The rubber flat plate (19) is provided inside the slot (20).

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