Open type hollow hydraulic wrench

Abstract

The utility model relates to the technical field of hydraulic wrenches, and discloses an open type hollow hydraulic wrench which comprises two shells, and a connecting groove and a first sliding groove are formed in one side of each shell. Sliding blocks are slidably connected to the inner sides of the first sliding grooves, and wrench bodies are fixed to one sides of the sliding blocks; a T-shaped connecting frame is inserted into the inner side of the connecting groove, a hydraulic cylinder is fixed to one side of the T-shaped connecting frame, and a connector is connected to the surface of the hydraulic cylinder; the connecting frame is fixed to the inner wall of the shell, the supporting assembly is arranged on one side of the bottom of the connecting frame, and the relative position between the supporting rod and a supported object can be flexibly adjusted by unscrewing the bolt and rotating the supporting rod, so that the fixing frame can meet the supporting requirements of different distances and different angles, and the using flexibility of the fixing frame is greatly improved; after the supporting rod is adjusted to a proper position, the supporting rod can be firmly fixed by re-inserting the bolt and tightening the bolt, so that unnecessary rotation or displacement of the supporting rod in the use process is avoided, and the stability of the supporting assembly is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic wrenches, and particularly relates to an open-ended hollow hydraulic wrench. Background Art

[0002] Hydraulic torque wrenches are divided into two major series: drive-type hydraulic torque wrenches and hollow hydraulic wrenches. The drive-type hydraulic torque wrench is used in conjunction with a standard socket and is a general-purpose hydraulic wrench with a wide range of applications. The hollow hydraulic wrench has a relatively thin thickness and is particularly suitable for places with relatively narrow spaces.

[0003] In the application of existing hydraulic wrenches, although they can provide efficient bolt tightening and removal functions, in the face of complex and changeable working environments, such as limited space and variable support point positions, the fixity and flexibility of traditional hydraulic wrenches often fail to meet the requirements. Especially when it is necessary to frequently adjust the support position to adapt to support objects at different distances and angles, traditional wrenches often seem inadequate. For this reason, an open-ended hollow hydraulic wrench is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an open-ended hollow hydraulic wrench to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an open-ended hollow hydraulic wrench, including two shells, one side of each shell is respectively provided with a connection groove and a first sliding groove;

[0006] A slider is slidably connected inside the first sliding groove, and a wrench body is fixed on one side of the slider;

[0007] A T-shaped connecting frame is inserted inside the connection groove, a hydraulic cylinder is fixed on one side of the T-shaped connecting frame, and a joint is connected to the surface of the hydraulic cylinder;

[0008] A connecting frame is fixed on the inner wall of the shell, and a support assembly is arranged on one side of the bottom of the connecting frame;

[0009] The support assembly includes a fixed frame, a limiting groove is arranged inside the fixed frame, a rotating shaft is rotatably connected inside the limiting groove through a bearing, and a support rod is fixedly sleeved outside the rotating shaft.

[0010] Preferably, a clamping groove is arranged at the push rod end of the hydraulic cylinder, a second sliding groove is arranged outside the wrench body, and a sliding column clamped inside the clamping groove is slidably connected inside the second sliding groove.

[0011] Preferably, the shape of the first sliding groove is circular, and an open end is arranged outside the wrench body.

[0012] Preferably, the bottom of the hydraulic cylinder is connected to one side of the housing through a bolt pin, and the top of the fixing frame is fixed to the bottom side of the connecting frame and the housing.

[0013] Preferably, a plurality of first through holes are provided on both sides of the fixing frame, and a second through hole is provided on one side of the support rod, and a bolt is connected between one of the first through holes and the second through hole.

[0014] Preferably, when the support rod rotates, the outer side of the bolt is inserted into the inner sides of the first through hole and the second through hole, and the bolt limits the position of the support rod.

[0015] Compared with the prior art, the present utility model adopts the above technical solutions and has the following technical effects:

[0016] First, by connecting the hydraulic cylinder to the hydraulic pump and using the power of the hydraulic system to drive the wrench body to rotate, it is more efficient than traditional manual or electric tools, thus quickly tightening the nut, saving a large amount of manpower and time.

[0017] Second, by loosening the bolt and rotating the support rod, the relative position between the support rod and the supporting object can be flexibly adjusted, so that the fixing frame can adapt to the supporting requirements at different distances and angles, greatly improving its flexibility in use. After adjusting the support rod to the appropriate position, by reinserting the bolt and tightening it, the support rod can be firmly fixed to avoid unnecessary rotation or displacement during use, ensuring the stability of the support assembly. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the external structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the structure at the connecting frame of the present utility model;

[0021] Figure 3 It is a schematic diagram of the structure at the first chute of the present utility model;

[0022] Figure 4 It is a schematic diagram of the structure at the first through hole of the present utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the support rod of the present utility model;

[0024] Figure 6 This is a schematic structural diagram of the second through-hole of the present utility model.

[0025] Explanation of reference numerals in the drawings: 1. Housing; 2. Support assembly; 21. Fixed frame; 22. Support rod; 23. Bolt; 24. First through-hole; 25. Limit groove; 26. Rotating shaft; 27. Second through-hole; 3. Wrench body; 4. Hydraulic cylinder; 5. Connector; 6. T-shaped connecting frame; 7. Connecting groove; 8. Connecting frame; 9. First sliding groove; 10. Slide block; 11. Slide column; 12. Card slot; 13. Second sliding groove. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions that can be implemented in this application. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that can be produced by this application and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application.

[0028] Embodiment

[0029] Please refer to Figure 1-6 , the present utility model provides a technical solution: an open-type hollow hydraulic wrench, including two housings 1. Connecting grooves 7 and first sliding grooves 9 are respectively opened on one side of the housing 1. Parts such as the housing 1, wrench body 3, hydraulic cylinder 4, T-shaped connecting frame 6, slide block 10, and slide column 11 jointly form an open-type hollow hydraulic wrench. A slide block 10 is slidably connected inside the first sliding groove 9. A wrench body 3 is fixed on one side of the slide block 10. A T-shaped connecting frame 6 is inserted inside the connecting groove 7. A hydraulic cylinder 4 is fixed on one side of the T-shaped connecting frame 6. A connector 5 is connected to the surface of the hydraulic cylinder 4;

[0030] A connecting frame 8 is fixed to the inner wall of the housing 1. A clamping groove 12 is provided at the push rod end of the hydraulic cylinder 4. The joint 5 on one side of the hydraulic cylinder 4 is connected to a hydraulic pump. At this time, the wrench body 3 with an open end is sleeved outside the nut. A second sliding groove 13 is provided on the outside of the wrench body 3. A sliding column 11 clamped inside the clamping groove 12 is slidably connected inside the second sliding groove 13. The shape of the first sliding groove 9 is circular. The sliding column 11 clamped in the clamping groove 12 at the push rod end of the hydraulic cylinder 4 slides inside the second sliding groove 13. At this time, the thrust of the hydraulic cylinder 4 causes the slider 10 to drive the wrench body 3 to slide inside the first sliding groove 9. An open end is provided on the outside of the wrench body 3. When the wrench body 3 rotates, it drives the nut inside it to rotate and tighten the nut. The bottom of the hydraulic cylinder 4 is connected to one side of the housing 1 through a pin. The top of the fixing frame 21 is fixed to the connecting frame 8 and the bottom side of the housing 1. Remove the pin and take out the T-shaped connecting frame 6 from inside the connecting groove 7. At the same time, rotate the hydraulic cylinder 4 so that the clamping groove 12 moves away from the outside of the sliding column 11. At this time, the hydraulic cylinder 4 can be removed.

[0031] A support assembly 2 is provided on one side of the bottom of the connecting frame 8. In order to facilitate the support requirements of the hydraulic wrench for different distances and different angles, the support assembly 2 is provided. The support assembly 2 includes a fixing frame 21. A limiting groove 25 is provided inside the fixing frame 21. A rotating shaft 26 is rotatably connected inside the limiting groove 25 through a bearing. A support rod 22 is fixedly sleeved outside the rotating shaft 26. Loosen the bolt 23 so that the bolt 23 leaves the inside of the first through hole 24 and the second through hole 27 respectively. Then rotate the support rod 22 so that the support rod 22 drives the rotating shaft 26 to rotate. A plurality of first through holes 24 are provided on both sides of the fixing frame 21. A second through hole 27 is provided on one side of the support rod 22. A bolt 23 is connected between one of the first through holes 24 and the second through hole 27. Rotate the support rod 22 to the side close to the support object, and then insert the bolt 23 into the first through hole 24 on one side of the second through hole 27. At this time, the position of the support rod 22 is limited. When the support rod 22 rotates, the outside of the bolt 23 is inserted into the first through hole 24 and the second through hole 27, and the bolt 23 limits the position of the support rod 22.

[0032] Working principle: When it is necessary to tighten the nut, only need to connect the joint 5 on one side of the hydraulic cylinder 4 to the hydraulic pump. At this time, the wrench body 3 with an open end is sleeved outside the nut, and then one side of the fixing frame 21 is attached to one side of the support object;

[0033] At this time, the sliding column 11 clamped by the push rod end slot 12 of the hydraulic cylinder 4 slides inside the second chute 13. At this time, the thrust of the hydraulic cylinder 4 causes the slider 10 to drive the wrench body 3 to slide inside the first chute 9. When the wrench body 3 rotates, it drives the nut inside it to rotate and tighten the nut. By connecting the hydraulic cylinder 4 to a hydraulic pump and using the power of the hydraulic system to drive the wrench body 3 to rotate, it is more efficient than traditional manual or electric tools, thus quickly tightening the nut and saving a large amount of manpower and time;

[0034] When the support distance on one side of the fixing frame 21 is relatively far, at this time, only need to loosen the bolt 23 so that the bolt 23 leaves the inside of the first through hole 24 and the second through hole 27 respectively, and then rotate the support rod 22 so that the support rod 22 drives the rotating shaft 26 to rotate. Rotate the support rod 22 to the side close to the supported object, and then insert the bolt 23 into the first through hole 24 on one side of the second through hole 27. At this time, the position of the support rod 22 is limited to prevent the support rod 22 from rotating. By loosening the bolt 23 and rotating the support rod 22, the relative position between the support rod 22 and the supported object can be flexibly adjusted, so that the fixing frame 21 can adapt to the support requirements of different distances and different angles, greatly improving its flexibility of use. After adjusting the support rod 22 to the appropriate position, by reinserting the bolt 23 and tightening it, the support rod 22 can be firmly fixed to prevent unnecessary rotation or displacement during use, ensuring the stability of the support assembly 2.

[0035] Those skilled in the art can understand that the features recited in the various embodiments and / or claims of the present invention can be combined or / and combined in various ways, even if such combinations or combinations are not explicitly recited in the present invention. In particular, without departing from the spirit and teachings of the present invention, the features recited in the various embodiments and / or claims of the present invention can be combined and / or combined in various ways. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. An open hollow hydraulic wrench, comprising two housings (1), characterized in that: A connecting groove (7) and a first sliding groove (9) are respectively provided on one side of the housing (1); A sliding block (10) is slidably connected to the inner side of the first sliding groove (9), and a wrench body (3) is fixed to one side of the sliding block (10); A T-shaped connecting frame (6) is inserted into the inner side of the connecting groove (7), a hydraulic cylinder (4) is fixed to one side of the T-shaped connecting frame (6), and a joint (5) is connected to the surface of the hydraulic cylinder (4); A connecting frame (8) is fixed to the inner wall of the shell (1), and a supporting assembly (2) is provided on one side of the bottom of the connecting frame (8); The support assembly (2) comprises a fixing frame (21), a limiting groove (25) is provided inside the fixing frame (21), a rotating shaft (26) is rotatably connected inside the limiting groove (25) via a bearing, and a support rod (22) is fixedly sleeved outside the rotating shaft (26).

2. An open hollow hydraulic wrench according to claim 1, characterized in that: A slot (12) is provided at the push rod end of the hydraulic cylinder (4), a second slide slot (13) is provided on the outside of the wrench body (3), and a slide column (11) is slidably connected to the inside of the second slide slot (13) and is engaged with the inside of the slot (12).

3. The open hollow hydraulic wrench according to claim 1, characterized in that: The first sliding groove (9) is in the shape of a circular ring, and an open end is provided on the outside of the wrench body (3).

4. The open hollow hydraulic wrench according to claim 1, characterized in that: The bottom of the hydraulic cylinder (4) is connected to one side of the housing (1) via a latch, and the top of the fixing frame (21) is fixed to the connecting frame (8) and one side of the bottom of the housing (1).

5. The open hollow hydraulic wrench according to claim 1, characterized in that: A plurality of first through holes (24) are provided on both sides of the fixing frame (21), and a second through hole (27) is provided on one side of the supporting rod (22), wherein a bolt (23) is connected between one of the first through holes (24) and the second through hole (27).

6. The open hollow hydraulic wrench according to claim 5, characterized in that: When the support rod (22) rotates, the outer side of the bolt (23) is inserted into the inner side of the first through hole (24) and the second through hole (27), and the bolt (23) limits the position of the support rod (22).

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