Hydraulic jack protection assembly

By designing a combined structure of connecting base, connecting bottom plate, adjusting lifting frame and hook top plate on the hydraulic jack, flexible hook replacement and height adjustment are achieved, solving the problem of poor fixing effect of hydraulic jack due to the shape of the object being lifted, and improving the convenience and stability of operation.

CN223936132UActive Publication Date: 2026-02-24JIAXING LITUO MASCH CO LTD
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Patent Information

Application Number
CN202520612170.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-02-24
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

Existing hydraulic jacks have significant limitations in securing objects, as the shape of the object affects the securing effect, and the hook is inconvenient to replace.

Method used

A hydraulic jack protection assembly was designed, including a connecting base, a connecting bottom plate, an adjustable lifting frame, and a hook top plate. The hook can be flexibly replaced and its height adjusted by connecting bolts and locking nuts. The limit rod and sliding groove structure avoid difficulties in aligning the locking holes during the adjustment process.

Benefits of technology

This expands the application range of hydraulic jacks, simplifies the hook replacement process, and improves the convenience and stability of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223936132U_ABST
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Abstract

The utility model relates to the technical field of jacks, in particular to a hydraulic jack protection assembly which comprises a hydraulic jack body, and a connecting base is assembled at the top end of the hydraulic jack body. Firstly, a proper lifting hook is selected corresponding to an object to be jacked, if the object to be jacked is of a plate-shaped base structure, an L-shaped lifting hook plate can be inserted into the jacked object, and when a hole suitable for a J-shaped lifting hook is formed in the surface of the object to be jacked, a locking nut is screwed out to separate a connecting base and a connecting bottom plate; and then the screwing insertion hole in the surface of the connecting bottom plate of the corresponding lifting hook is aligned with the connecting bolt to be inserted, and the locking nut is screwed to complete the replacement of the corresponding lifting hook, so that the application range is expanded, and the replacement operation is convenient and simple.
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Description

TECHNICAL FIELD

[0001] The utility model relates to jack technical field, concretely relates to a hydraulic jack protection assembly. BACKGROUND

[0002] Jack is the rigid top lifting piece as working device, through the small stroke of top support or bottom support claw inside top open heavy small hoisting equipment.

[0003] The disclosed number CN217808504U discloses a kind of high protection hydraulic jack, compared with traditional jack, it is more flexible to use, while, the mounting buckle installed in the protective strip set on sling can better fix lifting hook on the top piece in initial state, so as to reduce the possibility of lifting hook from the top piece, the protective strip plays a certain protective effect, increase the stability when the high protection hydraulic jack is used, but the application scene of hydraulic jack is more extensive, when being fixed on lifting hook, the fixed effect is influenced by the appearance of top piece, and its structure is inconvenient to replace other shape lifting hook when using, so there is certain limitation when using, for this, we propose a kind of hydraulic jack protection assembly. UTILITARIAN CONTENT

[0004] In view of the problems in the prior art, the utility model provides a hydraulic jack protection assembly.

[0005] The utility model solves the technical scheme that it adopts technical scheme of a kind of hydraulic jack protection assembly, including hydraulic jack main part, the top end of hydraulic jack main part is equipped with connecting base, the top end surface of connecting base is integrally formed with multiple connecting bolts, and the connecting bolt is evenly distributed in the surface of connecting base in round type, the connecting base is inserted with connecting bottom plate by connecting bolt, and the surface of connecting bottom plate is equipped with multiple screwing insertion hole that is consistent with connecting bolt;

[0006] The top end of connecting bottom plate is integrally formed with connecting insertion rod in the middle, the connecting insertion rod is inserted in the inside of adjusting lifting frame, the top end of adjusting lifting frame is integrally formed in the middle of the bottom end of lifting hook top plate, the bottom end of lifting hook top plate is fixedly connected with L type lifting hook plate on one side.

[0007] By adopting the technical scheme, firstly, a suitable hook is selected according to the object to be lifted, if the object to be lifted is a plate-shaped base structure, the L-shaped hook plate can be inserted to lift the object, when the surface of the object to be lifted is provided with a hole suitable for the J-shaped hook, the locking nut is unscrewed to separate the connecting base and the connecting plate, then the screw hole on the surface of the connecting plate of the corresponding hook is aligned with the connecting bolt, the locking nut is screwed to complete the replacement of the corresponding hook, the application range is expanded, and the replacement operation is convenient and simple.

[0008] If it is necessary to adjust the height of the hook top plate, the locking bolt can be unscrewed to adjust the height of the adjusting lifting frame, the locking bolt is selected into the locking hole provided in the side wall of the connecting rod after alignment, and the height adjustment is completed.

[0009] Specifically, the connecting bolt is screwed with the locking nut of the locking connecting base and the connecting plate.

[0010] By adopting the technical scheme, when the L-shaped hook plate is not suitable for the object to be lifted, the locking nut can be unscrewed to replace the hook top plate of the corresponding hook and be connected and fixed by screwing the nut.

[0011] Specifically, the two sides of the connecting rod are integrally formed with a limiting rod, and a limiting sliding groove matched with the limiting rod is provided in the groove at the bottom end of the adjusting lifting frame.

[0012] By adopting the technical scheme, the adjusting lifting frame with the limiting structure can avoid the situation that the hook top plate cannot be positioned conveniently due to the rotation of the adjusting lifting frame by a certain angle and the misalignment of the locking hole.

[0013] Specifically, the side wall of the connecting rod and the adjusting lifting frame is provided with a locking hole for adjustment, and the locking hole is screwed with a locking bolt.

[0014] By adopting the technical scheme, the adjusting lifting frame and the connecting rod are connected through the corresponding screwing structure.

[0015] Specifically, the bottom end of the hydraulic jack body is provided with a jack base plate.

[0016] By adopting the technical scheme, when in use, the jack base plate is placed near the object to be lifted, and the corresponding hook is connected and fixed, and then the control assembly of the jack base plate is operated to lift the object.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The technical scheme of the present application first selects a suitable hook corresponding to the object to be jacked, if the object to be jacked is a plate-shaped base structure, an L-shaped hook plate can be used to insert and jack up the object, when the surface of the object to be jacked is provided with a hole suitable for a J-shaped hook, the locking nut is unscrewed to separate the connecting base and the connecting bottom plate, then the screw hole on the surface of the connecting bottom plate corresponding to the hook is aligned with the connecting bolt and the locking nut is tightened to complete the replacement of the corresponding hook, thereby expanding the application range and facilitating the replacement operation.

[0019] If it is necessary to adjust the height of the hook top plate, the locking bolt can be unscrewed to adjust the height of the adjusting lifting frame, the locking bolt is selected into the locking hole opened in the side wall of the connecting rod after alignment after adjustment, and the height adjustment is completed, in the adjustment process, the sliding groove matched with the limiting rod and the bottom end of the adjusting lifting frame is opened to avoid the situation that the locking hole is difficult to align due to rotation of the adjusting lifting frame in the adjustment process, and time is wasted. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in combination with the drawings and embodiments.

[0021] Fig. 1 It is an isometric view of the present application.

[0022] Fig. 2 It is a split schematic view of the connecting structure between the connecting base and the connecting bottom plate of the present application.

[0023] Fig. 3 It is a split schematic view of the connecting structure between the connecting base and the hook top plate of the present application.

[0024] In the drawings: 1, hydraulic jack body; 2, connecting base; 3, connecting bolt; 4, connecting bottom plate; 5, screw hole; 6, locking nut; 7, connecting rod; 8, limiting rod; 9, adjusting lifting frame; 10, locking hole; 11, hook top plate; 12, L-shaped hook plate; 13, locking bolt; 14, jack base plate. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application will be further described below in combination with specific embodiments.

[0026] Please refer to Figs. 1-3This utility model provides a technical solution: a hydraulic jack protection component, including a hydraulic jack body 1, a connecting base 2 is assembled at the top of the hydraulic jack body 1, a plurality of connecting bolts 3 are integrally constructed on the top surface of the connecting base 2, and the connecting bolts 3 are evenly distributed in a circular shape on the surface of the connecting base 2, and a connecting base plate 4 is inserted into the connecting base 2 through the connecting bolts 3, and a plurality of threaded insertion holes 5 that fit with the connecting bolts 3 are opened on the surface of the connecting base 4;

[0027] The top center of the connecting base plate 4 has an integral connecting rod 7, which is inserted into the interior of the adjusting lifting frame 9. The top center of the adjusting lifting frame 9 is integrally located at the bottom center of the hook top plate 11. An L-shaped hook plate 12 is fixedly connected to one side of the bottom of the hook top plate 11.

[0028] When using it, first select the appropriate hook according to the object to be lifted. If the object to be lifted is a plate-shaped base structure, the L-shaped hook plate 12 can be inserted to lift the object. When the surface of the object to be lifted has holes suitable for J-shaped hooks, unscrew the locking nut 6 to separate the connecting base 2 from the connecting base plate 4. Then, align the screw hole 5 on the surface of the connecting base plate 4 of the corresponding hook with the connecting bolt 3, insert it, and tighten the locking nut 6 to complete the corresponding hook replacement. This expands the scope of application and the replacement operation is convenient and simple.

[0029] If the height of the top plate 11 of the hook needs to be adjusted, the height of the lifting frame 9 can be adjusted by unscrewing the locking bolt 13. After adjustment, the locking bolt 13 is inserted into the locking hole 10 on the side wall of the connecting rod 7 to complete the height adjustment. During the adjustment process, the locking hole 10 is not easy to align due to the rotation of the lifting frame 9 during the adjustment process, which would waste time.

[0030] As shown in the figure, the connecting bolt 3 passes through the screw-in socket 5 and is screwed into the locking nut 6, which is connected to the locking base 2 and the connecting base plate 4.

[0031] When in use, if the L-shaped hook plate 12 is not suitable for the object to be lifted, the locking nut 6 can be unscrewed to replace the hook top plate 11 with the corresponding hook and then screwed in the nut to connect and fix it.

[0032] As shown in the figure, the two sides of the connecting rod 7 are integrally constructed with limit rods 8, and the bottom of the adjusting lifting frame 9 is provided with a limit groove that matches the limit rod 8.

[0033] When in use, the adjusting lifting frame 9 with a limiting structure is used to avoid the situation where the adjusting lifting frame 9 cannot be aligned with the locking hole 10 after rotating to a certain angle, which would make it inconvenient to position the hook top plate 11.

[0034] As shown in the figure, the side walls of the connecting rod 7 and the adjusting lifting frame 9 are both provided with locking holes 10 for adjustment, and locking bolts 13 are screwed into the inside of the locking holes 10.

[0035] In use, the adjusting lifting frame 9 is connected to the connecting rod 7 through the corresponding screw structure.

[0036] As shown in the figure, the bottom end of the hydraulic jack body 1 is equipped with a jack base plate 14.

[0037] When in use, place the jack base plate 14 near the object to be lifted and connect and fix the corresponding hook to it, then operate the control component of the jack base plate 14 to lift the object.

[0038] The working principle and usage process of this utility model are as follows: First, select a suitable hook according to the object to be lifted. If the object is a plate-shaped base structure, an L-shaped hook plate 12 can be inserted to lift the object. When the L-shaped hook plate 12 is not suitable for the object, the locking nut 6 can be unscrewed to replace the hook top plate 11 of the corresponding hook and then screwed in the nut for connection and fixation. If the surface of the object to be lifted has holes suitable for J-shaped hooks, the locking nut 6 can be unscrewed to separate the connecting base 2 from the connecting bottom plate 4. Then, align the threaded insertion hole 5 on the surface of the connecting bottom plate 4 of the corresponding hook with the connecting bolt 3, insert it, and tighten the locking nut 6 to complete the corresponding hook replacement. To broaden its application scope, when it is necessary to adjust the height of the top plate 11 of the hook, the height of the lifting frame 9 is adjusted by unscrewing the locking bolt 13. After adjustment, the locking bolt 13 is inserted into the locking hole 10 on the side wall of the connecting rod 7 to complete the height adjustment. The lifting frame 9 is connected to the connecting rod 7 by the corresponding screw structure. During the adjustment process, the locking hole 10 is not easily aligned due to the rotation of the lifting frame 9 during the adjustment process, which would waste time. The replacement operation is convenient and simple. The control components of the jack base plate 14 are used to lift the object.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic jack safety assembly, characterized in that, The hydraulic jack body (1) is equipped with a connecting base (2) at the top. The top surface of the connecting base (2) is integrally constructed with multiple connecting bolts (3), and the connecting bolts (3) are evenly distributed in a circular shape on the surface of the connecting base (2). The connecting base (2) is connected to a connecting plate (4) by the connecting bolts (3), and the surface of the connecting plate (4) is provided with multiple screw holes (5) that fit with the connecting bolts (3). The top center of the connecting base plate (4) is integrally constructed with a connecting rod (7), which is inserted into the interior of the adjusting lifting frame (9). The top of the adjusting lifting frame (9) is integrally constructed at the center of the bottom of the hook top plate (11), and an L-shaped hook plate (12) is fixedly connected to one side of the bottom of the hook top plate (11).

2. The hydraulic jack protection assembly according to claim 1, characterized in that, The connecting bolt (3) passes through the threaded insertion hole (5) and is threaded to the locking nut (6) which is connected to the locking base (2) and the connecting base plate (4).

3. A hydraulic jack protection assembly according to claim 1, characterized in that, The connecting rod (7) has an integrally constructed limit rod (8) on both sides, and the bottom groove of the adjusting lifting frame (9) is provided with a limit groove that matches the limit rod (8).

4. A hydraulic jack protection assembly according to claim 1, characterized in that, The side walls of the connecting rod (7) and the adjusting lifting frame (9) are both provided with locking holes (10) for adjustment, and the locking holes (10) are screwed with locking bolts (13).

5. A hydraulic jack protection assembly according to claim 1, characterized in that, The bottom end of the hydraulic jack body (1) is equipped with a jack base plate (14).

Citation Information

Patent Citations

  • High-protection hydraulic jack

    CN217808504U