Fixing device for hydraulic wrench and hydraulic wrench

Abstract

The utility model relates to the technical field of hydraulic wrenches, and discloses a fixing device for a hydraulic wrench and the hydraulic wrench, the fixing device comprises a torque wrench, a rotating handle, a driving shaft, an oil inlet end and an oil pipe joint, the bottom of the rotating handle is provided with a supporting fixing end, and the bottom of the supporting fixing end is provided with a supporting rod, an adjusting shaft, a supporting seat and a bottom support; according to the hydraulic wrench, when the hydraulic wrench is lifted upwards for use, firstly, a nut is sleeved with the driving shaft through an external sleeve, the supporting rod and the supporting fixing end are in butt joint and fixed, the screw shaft is controlled to rotate and move through the control rod end, and the screw shaft is made to move downwards as a whole and drive the adjusting shaft to move downwards; and when the adjusting shaft is rotated continuously, the pressure spring in the adjusting shaft can be pressed continuously, the hydraulic wrench is extruded and fixed through the supporting rod, manual supporting operation is not needed, and therefore the effects that time and labor are saved, and the use efficiency of the hydraulic wrench is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic wrenches, in particular to a fixing device for hydraulic wrenches and a hydraulic wrench. Background Art

[0002] The hydraulic wrench is composed of a main body, an electric hydraulic pump, a double high-pressure oil pipe, and a high-strength sleeve. After the hydraulic pump is started, the motor generates pressure, and the internal hydraulic oil is transmitted to the hydraulic torque wrench through the oil pipe medium, and then the piston rod of the hydraulic torque wrench is pushed, and the piston rod drives the ratchet at the front of the wrench so that the ratchet can drive the drive shaft to complete the pre-tightening and loosening of the bolts.

[0003] In the process of tightening or removing the bolts of the unit with the existing hydraulic wrench, due to the limitation of the operating space and the installation position factors, the hydraulic wrench needs to be lifted up with both hands to use it. When using a heavy hydraulic wrench, this manual operation method will consume more physical strength and may require workers to use it alternately, which is time-consuming and labor-intensive and affects efficiency. For this reason, we propose a fixing device for a hydraulic wrench and a hydraulic wrench. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a fixing device for a hydraulic wrench and a hydraulic wrench.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme, which is a fixing device for a hydraulic wrench, including a torque wrench, a rotating handle, a driving shaft, an oil inlet end and an oil pipe joint. A supporting fixed end is installed at the bottom of the rotating handle, and a supporting rod, an adjusting shaft, a supporting seat and a bottom support are arranged at the bottom of the supporting fixed end. A screw groove is opened inside the support rod, and a screw shaft is installed at the upper end of the adjusting shaft. The top of the adjusting shaft is connected and matched with the internal thread of the screw groove through the screw shaft. A telescopic connecting shaft is arranged inside the adjusting shaft, and the bottom end of the connecting shaft is connected and matched with the top support of the supporting seat. A control rod end for controlling the rotation of the adjusting shaft is installed on the outer sleeve of the adjusting shaft.

[0006] Preferably, when the adjusting shaft is rotated by rotating the control rod end, the screw shaft at the top of the adjusting shaft is located inside the screw groove and moves downward in a progressive state in a threaded rotation.

[0007] Preferably, the upper end of the connecting shaft is limitedly slidably matched with the inside of the adjusting shaft through a limit block, and a pressure spring is arranged inside the adjusting shaft to support and connect with the limit block;

[0008] Furthermore, when the bottom support contacts the ground, after the adjusting shaft is progressively moved downward by rotating the screw shaft, the pressure spring inside the adjusting shaft is in a squeezed state.

[0009] Preferably, a mounting groove is provided at the bottom of the limit block, a mounting shaft is installed at the upper end of the connecting shaft, and the outer periphery of the mounting shaft is rotatably matched with the inner side of the mounting groove through an external movable bearing.

[0010] Preferably, a built-in groove is provided at the bottom of the bottom support, and a fixed suction cup is installed on the inner top side of the built-in groove;

[0011] Furthermore, the stability of the bottom support and the ground support can be increased by providing a fixed suction cup.

[0012] Preferably, a spherical groove is provided on the periphery of the upper end of the support rod, a movable clamping ball is provided inside the spherical groove, an extrusion spring connected to the clamping ball support is provided inside the spherical groove, and a clamping groove is provided on the inner side of the support fixed end;

[0013] Furthermore, the upper end of the support rod is in a limited locking state with the locking groove inside the support fixed end through the locking ball inside the spherical groove.

[0014] A hydraulic wrench comprises the fixing device for the hydraulic wrench mentioned in any one of the above technical solutions.

[0015] Beneficial Effects

[0016] The utility model provides a fixing device for a hydraulic wrench and a hydraulic wrench, which have the following beneficial effects:

[0017] (1) The fixing device for the hydraulic wrench and the hydraulic wrench, in this article, a supporting fixed end is installed at the bottom of the rotating handle. When the hydraulic wrench is lifted up for use, the driving shaft is first sleeved on the nut through the external sleeve, and the supporting rod is inserted into the supporting fixed end through the clamping ball and fixed. At this time, the screw shaft at the top of the adjusting shaft is controlled by the control rod end to rotate and move, so that the screw shaft as a whole progresses downward and drives the adjusting shaft to move downward, so that the bottom support at the bottom of the support seat contacts the ground, and the bottom support is increased in stability by adsorbing the fixed suction cup to the bottom surface. In this way, the support rod, the adjusting shaft and the bottom of the support seat are connected. The bottom support of the top can be in contact with the ground to support the hydraulic wrench. When the adjusting shaft continues to rotate, the adjusting shaft continues to control the downward movement of the adjusting shaft under the progressive advancement of the screw shaft, so that the pressure spring inside the adjusting shaft is continuously compressed. In this way, the rebound pressure of the pressure spring itself can be transmitted to the support rod itself through the screw shaft at the top of the adjusting shaft, so that the hydraulic wrench is squeezed and fixed by the support rod. No manual support is required, and only the rotating handle needs to be held. The hydraulic wrench can be used to remove the nuts quickly and continuously to avoid alternating use by staff, thereby saving time and effort and improving the efficiency of the use of the hydraulic wrench.

[0018] (2) The fixing device for the hydraulic wrench and the hydraulic wrench, when the torque wrench and the rotating handle are placed idle, the supporting fixing end can be directly pulled downward for disassembly. When the support rod is pulled downward, the card ball inside the support rod will be squeezed with the inner side of the supporting fixing end, so that it will be retracted into the spherical groove for storage. In this way, the support rod can be quickly and directly pulled out, and the installation is similar, so that the support rod can be quickly disassembled and used, and the hydraulic wrench is convenient to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 For this utility model Figure 1 A magnified view of middle;

[0023] Figure 3 For this utility model Figure 1 Enlarged view of middle B;

[0024] Figure 4 For this utility model Figure 1 Enlarged view of middle C;

[0025] Figure 5 For this utility model Figure 1 Enlarged view of D in the middle.

[0026] Legend:

[0027] 1. Torque wrench; 2. Rotating handle; 3. Drive shaft; 4. Oil inlet end; 5. Oil pipe joint; 6. Support fixed end; 7. Support rod; 8. Adjustment shaft; 9. Support seat; 10. Screw groove; 11. Screw shaft; 12. Connecting shaft; 13. Limit block; 14. Pressure spring; 15. Mounting groove; 16. Mounting shaft; 17. Bottom support; 18. Built-in groove; 19. Fixed suction cup; 20. Spherical groove; 21. Card ball; 22. Card groove; 23. Extrusion spring; 24. Control rod end. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1: A fixing device for a hydraulic wrench, such as Figure 1-Figure 5 As shown, it includes a torque wrench 1, a rotating handle 2, a drive shaft 3, an oil inlet end 4 and an oil pipe joint 5;

[0030] The difference is that a support fixed end 6 is installed at the bottom of the rotating handle 2, and a support rod 7, an adjusting shaft 8, a support seat 9 and a bottom support 17 are arranged at the bottom of the support fixed end 6. A screw groove 10 is opened inside the support rod 7, and a screw shaft 11 is installed on the upper end of the adjusting shaft 8. The top of the adjusting shaft 8 is connected with the internal thread of the screw groove 10 through the screw shaft 11. A telescopic connecting shaft 12 is arranged inside the adjusting shaft 8. The bottom end of the connecting shaft 12 is connected with the top support of the support seat 9. The upper end of the connecting shaft 12 is limited and slidably matched with the inside of the adjusting shaft 8 through a limit block 13. The inside of the adjusting shaft 8 is provided with a pressure spring 1 that supports and connects with the limit block 13. 4. A mounting groove 15 is provided at the bottom of the limit block 13, a mounting shaft 16 is installed at the upper end of the connecting shaft 12, and the periphery of the mounting shaft 16 is rotatably matched with the inner side of the mounting groove 15 through an external movable bearing. A built-in groove 18 is provided at the bottom of the bottom support 17, and a fixed suction cup 19 is installed on the top side of the inner side of the built-in groove 18. A spherical groove 20 is provided at the periphery of the upper end of the support rod 7, and a movable card ball 21 is provided inside the spherical groove 20. A card groove 22 is provided on the inner side of the support fixed end 6, and an extrusion spring 23 supported and connected to the card ball 21 is provided inside the spherical groove 20. A control rod end 24 for controlling the rotation of the adjusting shaft 8 is installed on the outer sleeve of the adjusting shaft 8.

[0031] Furthermore, when the adjusting shaft 8 is rotated by the control rod end 24, the screw shaft 11 at the top of the adjusting shaft 8 is located inside the screw groove 10 and moves downward in a progressive state in a threaded rotation.

[0032] Furthermore, when the bottom support 17 contacts the ground, after the adjusting shaft 8 is rotated and progressively moved downward by the screw shaft 11 , the pressure spring 14 located inside the adjusting shaft 8 is in a squeezed state.

[0033] Furthermore, the upper end of the support rod 7 is in a limited engagement state with the engagement groove 22 inside the support fixing end 6 through the engagement ball 21 inside the spherical groove 20 .

[0034] Embodiment 2: A hydraulic wrench, such as Figure 1-Figure 5 As shown, it includes the fixing device for the hydraulic wrench mentioned in Example 1.

[0035] The working principle of this utility model:

[0036] The bottom of the rotating handle 2 is equipped with a supporting fixed end 6. When the hydraulic wrench is lifted upward for use, the driving shaft 3 is first sleeved on the nut through the external sleeve, and the supporting rod 7 is inserted into the supporting fixed end 6 through the card ball 21 for docking and fixing. At this time, the screw shaft 11 at the top of the adjusting shaft 8 is controlled by the control rod end 24 to rotate and move, so that the screw shaft 11 as a whole progresses downward and drives the adjusting shaft 8 to move downward, so that the bottom support 17 at the bottom of the supporting seat 9 contacts the ground, and the bottom support 17 is increased by adsorption of the fixed suction cup 19 with the bottom surface. In this way, the bottom support 17 at the bottom of the supporting seat 9 is adjusted by the support rod 7, the adjusting shaft 8 and the bottom support 17 at the bottom of the supporting seat 9. The hydraulic wrench can be supported and used in contact with the ground. When the adjusting shaft 8 continues to be rotated, the adjusting shaft 8 continues to move downward under the progressive advancement of the screw shaft 11, so that the pressure spring 14 inside the adjusting shaft 8 is continuously compressed. In this way, the rebound pressure of the pressure spring 14 itself can be transmitted to the support rod 7 itself through the screw shaft 11 at the top of the adjusting shaft 8, so that the hydraulic wrench is squeezed and fixed by the support rod 7. No manual support is required, and only the rotating handle 2 needs to be held, so that the hydraulic wrench can be used to remove the nuts quickly and continuously, avoiding alternating use by staff, thereby saving time and effort and improving the use efficiency of the hydraulic wrench.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fixing device for a hydraulic wrench, comprising a torque wrench (1), a rotary handle (2), a drive shaft (3), an oil inlet end (4) and an oil pipe joint (5), Features: A support fixing end (6) is installed at the bottom of the rotating handle (2), and a support rod (7), an adjusting shaft (8), a support seat (9) and a bottom support (17) are arranged at the bottom of the support fixing end (6). A screw groove (10) is provided inside the support rod (7), and a screw shaft (11) is installed at the upper end of the adjusting shaft (8). The top of the adjusting shaft (8) is threadedly connected with the inside of the screw groove (10) through the screw shaft (11). A telescopically matched connecting shaft (12) is arranged inside the adjusting shaft (8), and the bottom end of the connecting shaft (12) is supported and connected with the top of the support seat (9). A control rod end (24) for controlling the rotation of the adjusting shaft (8) is installed on the outer sleeve of the adjusting shaft (8).

2. The fixing device for a hydraulic wrench according to claim 1, Features: When the adjusting shaft (8) is rotated by the control rod end (24), the screw shaft (11) at the top of the adjusting shaft (8) is located inside the screw groove (10) and moves downward in a progressive state in a threaded rotation.

3. The fixing device for a hydraulic wrench according to claim 1, Features: The upper end of the connecting shaft (12) is in limited sliding cooperation with the inside of the adjusting shaft (8) through a limit block (13), and a pressure spring (14) is provided inside the adjusting shaft (8) for supporting and connecting the limit block (13).

4. The fixing device for a hydraulic wrench according to claim 3, Features: When the bottom support (17) contacts the ground, the adjustment shaft (8) is rotated and progressively moved downward by the screw shaft (11), and the pressure spring (14) located inside the adjustment shaft (8) is in a squeezed state.

5. The fixing device for a hydraulic wrench according to claim 3, Features: The bottom of the limit block (13) is provided with a mounting groove (15), and the upper end of the connecting shaft (12) is provided with a mounting shaft (16), and the outer periphery of the mounting shaft (16) is rotatably matched with the inner side of the mounting groove (15) via an external movable bearing.

6. The fixing device for a hydraulic wrench according to claim 4, Features: The bottom of the bottom support (17) is provided with a built-in groove (18), and a fixed suction cup (19) is installed on the inner top side of the built-in groove (18).

7. The fixing device for a hydraulic wrench according to claim 1, Features: A spherical groove (20) is provided on the periphery of the upper end of the support rod (7), a movable locking ball (21) is provided inside the spherical groove (20), an extrusion spring (23) supported and connected to the locking ball (21) is provided inside the spherical groove (20), and a locking groove (22) is provided on the inner side of the support fixed end (6).

8. A hydraulic wrench, Features: A fixing device for a hydraulic wrench comprising any one of claims 1 to 7.

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