Multistage telescopic low hydraulic jack

Abstract

The utility model provides a kind of multistage telescopic low hydraulic jack, belong to the technical field of jack, including fixed plate, lubricating assembly fixedly installed in the fixed plate surface, support assembly fixedly installed in the lubricating assembly surface, hydraulic assembly used in cooperation with the support assembly, telescopic component fixedly installed in the fixed plate surface, and top plate fixedly connected in the end of telescopic component.The utility model realizes automatic lubricating function by the oil groove and ball structure of lubricating assembly, ensures telescopic rod persistent smooth operation with elastic member and wiping plate, significantly reduces component wear;The column and support frame of support assembly form stable support structure, improve overall stability;Hydraulic assembly adopts optimized design connecting frame and limiting frame, more labor-saving and efficient with crank operation;The multistage outer tube and telescopic rod design of telescopic component realize greater lifting stroke, while maintaining low profile for narrow space operation.

Description

Technical Field

[0001] This utility model belongs to the field of jack technology, specifically relating to a multi-stage telescopic low-profile hydraulic jack. Background Technology

[0002] Multi-stage telescopic low-profile hydraulic jacks are portable lifting devices that utilize hydraulic principles. Their core features include a progressively extendable sleeve structure and a low initial height design. These devices are widely used in automotive repair, construction, and industrial equipment installation, and are particularly suitable for safe and efficient lifting operations in space-constrained environments.

[0003] Traditional lubrication systems are simple in design and lack automatic lubrication, which makes the telescopic rod and support components prone to wear during long-term use, affecting their service life. The transmission structure of the hydraulic components is not optimized enough, requiring greater force during operation and resulting in low work efficiency. The telescopic components lack stability and are prone to swaying or shifting under load, posing safety hazards. Therefore, a multi-stage telescopic low-profile hydraulic jack is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage telescopic low-profile hydraulic jack, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-stage telescopic low-profile hydraulic jack includes a fixed plate, a lubrication assembly fixedly installed on the surface of the fixed plate, a support assembly fixedly installed on the surface of the lubrication assembly, a hydraulic assembly used in conjunction with the support assembly, a telescopic assembly fixedly installed on the surface of the fixed plate, and a top plate fixedly connected to the end of the telescopic assembly.

[0007] The lubrication assembly includes a housing, an oil groove formed in the inner cavity of the housing, and a support rod fixedly connected to the center of the oil groove;

[0008] The lubrication assembly also includes an elastic element sleeved on the outer surface of the support rod, a ball bearing in contact with the end of the elastic element, and a wiping plate in contact with the surface of the ball bearing.

[0009] The support assembly includes a column, a support column fixedly installed at the end of the column, and a support frame fixedly connected to the end of the column.

[0010] The hydraulic assembly includes a connecting frame fixedly mounted on the surface of the housing, and a limiting frame hinged to the side surface of the connecting frame;

[0011] The hydraulic assembly also includes a pressing rod fixedly installed at the end of the limiting frame, a mounting bracket fixedly connected to the end of the pressing rod, and a crank handle hinged to the inner surface of the mounting bracket;

[0012] As a preferred embodiment of this utility model, the telescopic assembly includes an outer cylinder, a base fixedly installed in the inner cavity of the outer cylinder, and a telescopic rod fixedly installed at the end of the base.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the automatic lubrication function is achieved through the oil groove and ball structure of the lubrication component, and the elastic element and wiping plate ensure the long-term smooth operation of the telescopic rod, significantly reducing component wear; the column and support frame of the support component form a stable support structure, improving overall stability; the hydraulic component adopts an optimized connecting frame and limit frame, which, together with the crank handle, makes operation more labor-saving and efficient; the multi-stage outer cylinder and telescopic rod design of the telescopic component achieves a larger lifting stroke, while maintaining a low profile for easy operation in confined spaces, improving the working efficiency, safety and service life of the jack. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the support component and hydraulic component of this utility model;

[0017] Figure 3 This is a schematic diagram of the telescopic component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the lubrication component structure of this utility model.

[0019] In the diagram: 101, fixed plate; 102, lubrication assembly; 103, support assembly; 104, hydraulic assembly; 105, telescopic assembly; 106, top plate; 102a, outer shell; 102b, oil tank; 102c, support rod; 102d, elastic element; 102e, ball bearing; 102f, wiping plate; 103a, column; 103b, support column; 103c, support frame; 104a, connecting frame; 104b, limiting frame; 104c, pressing rod; 104d, mounting frame; 104e, crank handle; 105a, outer cylinder; 105b, base; 105c, telescopic rod. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Example

[0024] Reference Figure 1-4 This is an embodiment of the present invention, which provides a multi-stage telescopic low-profile hydraulic jack, comprising:

[0025] The assembly includes a fixed plate 101, a lubrication assembly 102 fixedly mounted on the surface of the fixed plate 101, a support assembly 103 fixedly mounted on the surface of the lubrication assembly 102, a hydraulic assembly 104 used in conjunction with the support assembly 103, a telescopic assembly 105 fixedly mounted on the surface of the fixed plate 101, and a top plate 106 fixedly connected to the end of the telescopic assembly 105.

[0026] The lubrication assembly 102 includes a housing 102a, an oil groove 102b formed in the inner cavity of the housing 102a, and a support rod 102c fixedly connected to the center of the oil groove 102b.

[0027] The lubrication assembly 102 also includes an elastic element 102d sleeved on the outer surface of the support rod 102c, a ball 102e in contact with the end of the elastic element 102d, and a wiping plate 102f in contact with the surface of the ball 102e.

[0028] Specifically, when the crank handle 104e drives the hydraulic component 104, the pressing rod 104c pushes the telescopic component 105 to start working. The telescopic rod 105c inside the outer cylinder 105a extends step by step to lift the top plate 106. During this process, the balls 102e of the lubrication component 102 maintain contact with the telescopic rod 105c under the action of the elastic element 102d. The lubricating oil in the oil groove 102b is evenly coated on the surface of the telescopic rod 105c through the balls 102e. At the same time, the wiping plate 102f removes excess oil and impurities, forming a continuous and effective automatic lubrication system. The column 103a and support frame 103c of the support component 103 provide stable support for the entire lifting process, ensuring the safety and reliability of the jack during load-bearing operations and achieving efficient and stable lifting function.

[0029] The support assembly 103 includes a column 103a, a support column 103b fixedly installed at the end of the column 103a, and a support frame 103c fixedly connected to the end of the column 103a.

[0030] The hydraulic assembly 104 includes a connecting frame 104a fixedly mounted on the surface of the housing 102a, and a limiting frame 104b hinged to the side surface of the connecting frame 104a.

[0031] The hydraulic assembly 104 also includes a pressing rod 104c fixedly mounted on the end of the limit frame 104b, a mounting bracket 104d fixedly connected to the end of the pressing rod 104c, and a crank 104e hinged to the inner surface of the mounting bracket 104d.

[0032] The telescopic assembly 105 includes an outer cylinder 105a, a base 105b fixedly installed in the inner cavity of the outer cylinder 105a, and a telescopic rod 105c fixedly installed at the end of the base 105b.

[0033] It should be noted that the operator moves the mounting frame 104d by cranking the handle 104e, causing the compression rod 104c to move linearly under the guidance of the limit frame 104b; the hydraulic component 104 transmits power to the telescopic component 105 through the connecting frame 104a, pushing the base 105b to slide inside the outer cylinder 105a, causing the telescopic rod 105c to extend step by step; during this process, the column 103a and the support column 103b of the support component 103 form a stable support structure, and the support frame 103c provides auxiliary fixation to ensure a smooth and reliable lifting process; multi-stage telescopic movement is achieved through hydraulic transmission, and the top plate 106 rises and falls smoothly accordingly, achieving large-stroke lifting operations while maintaining a low profile, which is particularly suitable for heavy lifting operations in narrow spaces.

[0034] In use, the crank handle 104e drives the compression rod 104c of the hydraulic assembly 104 to generate linear displacement, which drives the base 105b of the telescopic assembly 105 to slide within the outer cylinder 105a, allowing the telescopic rod 105c to extend in multiple stages. The balls 102e of the lubrication assembly 102 maintain contact with the telescopic rod 105c under the pressure of the elastic element 102d, evenly spreading the lubricating oil in the oil groove 102b onto the surface of the rod. At the same time, the wiping plate 102f removes excess oil, forming a self-lubricating system. The columns 103a, support columns 103b, and support frame 103c of the support assembly 103 work together to provide triple stable support for the lifting process. The entire system achieves power conversion through hydraulic transmission, completing large-stroke lifting operations while maintaining the advantage of a low profile. It features automatic lubrication, stable support, and efficient transmission, making it particularly suitable for lifting operations in narrow spaces such as car repair and equipment installation.

[0035] In summary, the ball bearing 102e continuously provides uniform lubrication to the telescopic rod 105c under the action of the elastic element 102d, and in conjunction with the cleaning function of the wiping plate 102f, effectively extends the service life of key components; the optimized hydraulic transmission mechanism adopts a collaborative design of the connecting frame 104a and the limit frame 104b, making the operation of the crank handle 104e more effortless and the power transmission more efficient; the triple support structure ensures stable and reliable lifting process and improves operational safety.

[0036] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0037] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0038] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-stage telescopic low-profile hydraulic jack, characterized in that: include, The fixed plate (101), the lubrication assembly (102) fixedly installed on the surface of the fixed plate (101), the support assembly (103) fixedly installed on the surface of the lubrication assembly (102), the hydraulic assembly (104) used in conjunction with the support assembly (103), the telescopic assembly (105) fixedly installed on the surface of the fixed plate (101), and the top plate (106) fixedly connected to the end of the telescopic assembly (105). The lubrication assembly (102) includes a housing (102a), an oil groove (102b) formed in the inner cavity of the housing (102a), and a support rod (102c) fixedly connected to the center of the oil groove (102b). The lubrication assembly (102) further includes an elastic element (102d) sleeved on the outer surface of the support rod (102c), a ball (102e) in contact with the end of the elastic element (102d), and a wiping plate (102f) in contact with the surface of the ball (102e). The support assembly (103) includes a column (103a), a support column (103b) fixedly installed at the end of the column (103a), and a support frame (103c) fixedly connected to the end of the column (103a). The hydraulic assembly (104) includes a connecting frame (104a) fixedly mounted on the surface of the housing (102a) and a limiting frame (104b) hinged to the side surface of the connecting frame (104a). The hydraulic assembly (104) further includes a pressing rod (104c) fixedly installed at the end of the limiting frame (104b), a mounting frame (104d) fixedly connected to the end of the pressing rod (104c), and a crank (104e) hinged to the inner surface of the mounting frame (104d). The telescopic assembly (105) includes an outer cylinder (105a), a base (105b) fixedly installed in the inner cavity of the outer cylinder (105a), and a telescopic rod (105c) fixedly installed at the end of the base (105b).

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