Disassembling tool for hydraulic wrench end cover

By designing a tooling for disassembling the end cap of a hydraulic wrench, and utilizing a magnetic connection and rotation mechanism, the problem of inconvenient disassembly of the rear end cap of the hydraulic wrench is solved, achieving convenient and flexible disassembly adaptability.

CN223834459UActive Publication Date: 2026-01-27NINGJIN COUNTY NADE MACHINERY MANUFACTURING CO LTD
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Patent Information

Application Number
CN202423259427.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-01-27
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

The rear cover of the hydraulic wrench is difficult to remove, and ordinary tools are not effective at removing it.

Method used

A hydraulic wrench end cap removal fixture was designed, including a crossbar, a fixed seat, a sliding seat, a connecting cylinder, and a positioning rod. The positioning rod is inserted and adapted through a magnetic connection and a rotation mechanism to accommodate disassembly holes of different diameters.

Benefits of technology

It enables convenient disassembly of the hydraulic wrench end cap, adapts to disassembly holes of different diameters, and improves disassembly efficiency and flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a disassembling tool for an end cover of a hydraulic wrench. The disassembling tool comprises a cross rod, a grab handle, a fixed seat and a sliding seat. According to the disassembling tool for the hydraulic wrench end cover, grab handles are symmetrically and fixedly connected to the two ends of a cross rod, a fixing base and a sliding base are connected to the cross rod, connecting cylinders are fixedly connected to the bottom face of the fixing base and the bottom face of the sliding base, connectors matched with the connecting cylinders are connected into the connecting cylinders, and positioning rods are fixedly connected to the bottom ends of the connectors; the positioning rod is used for being inserted into a rotating hole in the end cover, a cross-shaped sliding groove is formed in the end, close to one grab handle, of the cross rod, the fixed seat is fixedly connected to the end, close to the middle of the cross rod, of the cross-shaped sliding groove, and the sliding seat is slidably connected into the cross-shaped sliding groove and slidably arranged on the outer side of the cross rod in a sleeving mode. And the cross rod is matched with the fixed seat and the sliding seat to connect the positioning rod, and is matched with the grab handle to rotate the cross rod, so that the positioning rod can be inserted into the dismounting hole of the end cover, and the end cover can be conveniently and circularly dismounted.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic wrench technology, specifically a tooling for disassembling the end cap of a hydraulic wrench. Background Technology

[0002] A hydraulic wrench is a bolt tightening tool that can output and set torque. It belongs to the category of high-pressure hydraulic tools and is widely used in equipment maintenance and installation in many heavy industrial sectors. Hydraulic torque wrenches are available in two types: drive shaft and hollow type.

[0003] The end cap of a hydraulic wrench is installed to seal the cylinder. After long-term use, the piston or seals may be damaged, requiring the end cap to be disassembled to facilitate the repair or replacement of internal parts. The end cap usually has multiple rotating holes symmetrically opened around its circumference, which cannot be easily disassembled with ordinary screwdrivers or wrenches. Therefore, a tooling for disassembling the end cap of a hydraulic wrench is proposed to facilitate the disassembly of the end cap. Utility Model Content

[0004] The purpose of this utility model is to provide a disassembly fixture for the end cap of a hydraulic wrench, so as to solve the problem of inconvenient disassembly of the rear end cap of a hydraulic wrench mentioned in the background art.

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

[0006] A disassembly fixture for a hydraulic wrench end cap includes a crossbar with handles symmetrically fixedly connected to both ends. A fixed seat and a sliding seat are connected to the crossbar. A connecting cylinder is fixedly connected to the bottom surface of both the fixed seat and the sliding seat. A matching connector is connected inside the connecting cylinder. A positioning rod is fixedly connected to the bottom end of the connector. The positioning rod is used to insert into a rotating hole on the end cap.

[0007] As a further embodiment of this utility model: a cross groove is provided on one end of the cross bar near one of the handles, a fixed seat is fixedly connected to one end of the cross groove near the middle of the cross bar, and a sliding seat is slidably connected in the cross groove and slidably sleeved on the outside of the cross bar.

[0008] As a further embodiment of this utility model: a threaded rod is threadedly connected to the sliding seat, and a threaded hole for threaded connection of the threaded rod is provided on the sliding seat. One end of the threaded rod is rotatably connected to the fixed seat, and the other end of the threaded rod is fixedly connected to a rotating shaft. The rotating shaft rotates through the crossbar and the corresponding handle and is fixedly connected to a knob. The knob rotates in contact with the handle, and the outer wall of the knob is provided with anti-slip texture.

[0009] As a further improvement of this utility model: a magnetic disc is fixedly connected to the inner side of the connecting cylinder, and the magnetic disc is magnetically connected to the connector.

[0010] As a further embodiment of this utility model: multiple placement cavities are equally spaced at one end of the crossbar near the other handle, and each placement cavity contains a matching connector. The positioning rods connected to the connectors are identical in pairs. The connectors and positioning rods together constitute a plug assembly. The plug assemblies are identical in pairs, and the positioning rods of different plug assemblies have different diameters.

[0011] As a further embodiment of this utility model: the placement cavity is a stepped groove, and a magnetic ring is fixedly connected to the step of the placement cavity. The magnetic ring is magnetically connected to the connector, and the magnetic ring is slidably penetrated by the positioning rod.

[0012] As a further improvement of this utility model: the bottom surface of the crossbar is provided with a shrinkage groove corresponding to the bottom of the placement cavity, and the positioning rod is inserted into the shrinkage groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model connects the positioning rod with a crossbar, a fixed seat, and a sliding seat. The crossbar is rotated with the handle, so that the positioning rod can be inserted into the disassembly hole of the end cover for convenient cyclic disassembly of the end cover.

[0015] 2. This utility model uses the rotation of a knob to drive the threaded rod to rotate via a rotating shaft, thereby driving the sliding seat to slide within the cross groove, controlling the distance between the fixed seat and the sliding seat, and thus controlling the distance between the two positioning rods, thereby adapting to the insertion of disassembly holes with different diameter distributions.

[0016] 3. The connector of this utility model is installed in the connecting cylinder by magnetically attracted circular pieces, and the plug assembly composed of multiple sets of different positioning rods is placed in the placement cavity, so as to facilitate the replacement of the positioning rods and thus adapt to the insertion of disassembly holes of different diameters.

[0017] 4. This utility model uses a placement cavity to store the plug assembly consisting of the connector and the positioning rod, and uses a magnetic ring for magnetic attraction and fixation, thereby achieving a storage effect.

[0018] 5. By setting a shrinkage groove, the bottom end of the positioning rod is exposed, so that the positioning rod can be pushed in the opposite direction to remove the connector from the placement cavity, thus facilitating the use of the positioning rod. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a tooling for disassembling the end cap of a hydraulic wrench.

[0020] Figure 2 A top-view perspective view of a tooling for disassembling the end cap of a hydraulic wrench.

[0021] Figure 3 This is a cross-sectional view of a tooling for disassembling the end cap of a hydraulic wrench.

[0022] In the diagram: 1. Crossbar; 2. Handle; 3. Fixed base; 4. Sliding base; 5. Connecting cylinder; 6. Connecting head; 7. Positioning rod; 8. Cross groove; 9. Threaded rod; 10. Rotating shaft; 11. Knob; 12. Magnetic disc; 13. Placement cavity; 14. Magnetic ring; 15. Shrinkage groove. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-3 In this embodiment of the utility model, a disassembly fixture for a hydraulic wrench end cap includes a crossbar 1. Handles 2 are symmetrically fixedly connected to both ends of the crossbar 1. A fixed seat 3 and a sliding seat 4 are connected to the crossbar 1. A connecting cylinder 5 is fixedly connected to the bottom surface of both the fixed seat 3 and the sliding seat 4. A matching connector 6 is connected inside the connecting cylinder 5. A positioning rod 7 is fixedly connected to the bottom end of the connector 6. The positioning rod 7 is used to insert into the rotating hole on the end cap.

[0025] The positioning rod 7 is connected to the crossbar 1 in conjunction with the fixed seat 3 and the sliding seat 4. The crossbar 1 is rotated in conjunction with the handle 2, so that the positioning rod 7 can be inserted into the disassembly hole of the end cover for convenient cyclic disassembly of the end cover.

[0026] A cross groove 8 is provided on one end of the crossbar 1 near one of the handles 2. A fixed seat 3 is fixedly connected to one end of the cross groove 8 near the middle of the crossbar 1. A sliding seat 4 is slidably connected in the cross groove 8 and slidably sleeved on the outside of the crossbar 1.

[0027] A threaded rod 9 is threaded through the sliding seat 4. A threaded hole for threaded connection of the threaded rod 9 is provided on the sliding seat 4. One end of the threaded rod 9 is rotatably connected to the fixed seat 3. The other end of the threaded rod 9 is fixedly connected to a rotating shaft 10. The rotating shaft 10 rotates through the crossbar 1 and the corresponding handle 2 and is fixedly connected to a knob 11. The knob 11 rotates in contact with the handle 2. The outer wall of the knob 11 is provided with anti-slip texture.

[0028] Rotating the knob 11 causes the threaded rod 9 to rotate via the rotating shaft 10, thereby driving the sliding seat 4 to slide within the cross groove 8. This controls the distance between the fixed seat 3 and the sliding seat 4, thus controlling the distance between the two positioning rods 7, and adapting to the insertion of disassembly holes with different diameter distributions.

[0029] A magnetic disc 12 is fixedly connected to the inner side of the connecting cylinder 5, and the magnetic disc 12 is magnetically connected to the connecting head 6.

[0030] Multiple placement cavities 13 are equally spaced at one end of the crossbar 1 near one of the handles 2. Each placement cavity 13 contains a matching connector 6. The positioning rods 7 connected to the connector 6 are identical in pairs. The connector 6 and the positioning rods 7 together constitute a plug assembly. The plug assemblies are identical in pairs, and the positioning rods 7 of different plug assemblies have different diameters.

[0031] The placement cavity 13 is a stepped groove, and a magnetic ring 14 is fixedly connected to the step of the placement cavity 13. The magnetic ring 14 is magnetically connected to the connector 6, and the magnetic ring 14 is slidably penetrated by the positioning rod 7.

[0032] The connector 6 is assembled inside the connector cylinder 5 via a magnetic disc 12, while the placement cavity 13 contains a plug assembly consisting of multiple sets of different positioning rods 7, which facilitates the replacement of the positioning rods 7 and allows for insertion into disassembly holes of different diameters.

[0033] The plug assembly consisting of connector 6 and positioning rod 7 is stored in the placement cavity 13 and magnetically fixed by magnetic ring 14, thus achieving a storage effect.

[0034] The bottom surface of the crossbar 1 is provided with a shrinkage groove 15 corresponding to the bottom of the placement cavity 13, and the positioning rod 7 is inserted into the shrinkage groove 15.

[0035] By setting the shrinkage groove 15, the bottom end of the positioning rod 7 is exposed, so that the positioning rod 7 can be pushed in the opposite direction to remove the connector 6 from the placement cavity 13, thus making it convenient to use the positioning rod 7.

[0036] The working principle of this utility model is as follows:

[0037] In use, select the appropriate positioning rod 7, and lift the positioning rod 7 through the shrinking groove 15, so that the connector 6 is disengaged from the magnetic ring 14 and protrudes from the placement cavity 13. At this time, take out the connector 6 and insert the taken-out connector 6 into the connecting cylinder 5, so that the connector 6 is magnetically attracted to the magnetic disc 12. Then rotate the knob 11, the rotating shaft 10 rotates, thereby driving the threaded rod 9 to rotate, and then driving the sliding seat 4 to slide in the cross groove 8 to control the spacing of the positioning rod 7. At this time, insert the positioning rod 7 into the disassembly hole on the end cover, and rotate the handle 2 in conjunction with the cross bar 1 to unscrew the end cover.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A disassembly fixture for a hydraulic wrench end cap, comprising a crossbar (1), characterized in that: The two ends of the crossbar (1) are symmetrically fixedly connected to handles (2). A fixed seat (3) and a sliding seat (4) are connected to the crossbar (1). A connecting cylinder (5) is fixedly connected to the bottom surface of both the fixed seat (3) and the sliding seat (4). A matching connector (6) is connected inside the connecting cylinder (5). A positioning rod (7) is fixedly connected to the bottom end of the connector (6).

2. The disassembly fixture for a hydraulic wrench end cap according to claim 1, characterized in that: A cross groove (8) is provided on one end of the crossbar (1) near one of the handles (2). A fixed seat (3) is fixedly connected to one end of the cross groove (8) near the middle of the crossbar (1). A sliding seat (4) is slidably connected in the cross groove (8) and slidably sleeved on the outside of the crossbar (1).

3. The disassembly fixture for a hydraulic wrench end cap according to claim 2, characterized in that: A threaded rod (9) is threaded through the sliding seat (4). One end of the threaded rod (9) is rotatably connected to the fixed seat (3), and the other end of the threaded rod (9) is fixedly connected to a rotating shaft (10). After the rotating shaft (10) rotates through the crossbar (1) and the corresponding handle (2), a knob (11) is fixedly connected.

4. The disassembly fixture for a hydraulic wrench end cap according to claim 1, characterized in that: A magnetic disc (12) is fixedly connected to the inner side of the connecting cylinder (5), and the magnetic disc (12) is magnetically connected to the connector (6).

5. The disassembly fixture for a hydraulic wrench end cap according to claim 1, characterized in that: The crossbar (1) has multiple placement cavities (13) at equal intervals at one end near the other handle (2). Each placement cavity (13) contains a matching connector (6), and the positioning rods (7) connected to the connectors (6) are identical in pairs.

6. The disassembly fixture for a hydraulic wrench end cap according to claim 5, characterized in that: The placement cavity (13) is a stepped groove. A magnetic ring (14) is fixedly connected to the step of the placement cavity (13). The magnetic ring (14) is magnetically connected to the connector (6). The magnetic ring (14) is slidably penetrated by the positioning rod (7).

7. The disassembly fixture for a hydraulic wrench end cap according to claim 5, characterized in that: The bottom surface of the crossbar (1) is provided with a shrinkage groove (15) corresponding to the bottom of the placement cavity (13), and the positioning rod (7) is inserted into the shrinkage groove (15).