Hydraulic wrench structure

Abstract

The utility model discloses a hydraulic wrench structure which comprises a wrench body, a counter-force arm is arranged on the outer side surface of the wrench body, a rotating shell is arranged on the inner side surface of the wrench body, a fixing plate is rotationally connected to the outer side surface of the rotating shell, and the fixing plate is fixedly connected with the wrench body. A limiting guide block is fixedly connected to the surface of the inner side of the rotating shell, a working head is slidably inserted into the surface of the outer side of the limiting guide block, four blind holes are symmetrically formed in the surface of the outer side of the working head, a supporting mechanism is rotationally connected to the surface of the inner side of the lower portion of the counter-force arm, and a fixing mechanism is rotationally connected to the inner surface of the rotating shell. By arranging the supporting mechanism, when the hydraulic wrench cannot be taken out after being pressed, the hydraulic wrench can be taken out in a short time, the fastening efficiency of bolts or nuts is improved, by arranging the fixing mechanism, the working head can be disassembled and assembled in a short time, and working heads of different sizes and specifications can be replaced conveniently.

Description

Technical Field

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

[0002] Hydraulic wrench is the abbreviation of hydraulic torque wrench. It is a professional bolt tightening tool that uses hydraulic power to provide large torque output and is used for the installation and removal of bolts. It is often used to tighten and loosen bolts larger than one inch.

[0003] When some existing hydraulic wrenches are used, the force applied to the hydraulic wrench is converted into a reaction force through the reaction arm to achieve the tightening of the bolts or nuts. During this process, the reaction force will make the reaction arm close to the adjacent support. There is a situation where the hydraulic wrench cannot be taken out after being pressed. Although it can be solved by adjusting the pressure, it takes a certain amount of time, which affects the tightening efficiency of the bolts or nuts. In addition, the working head in the hydraulic wrench is generally fixed by bolts. When replacing working heads of different sizes, auxiliary tools are required to disassemble and assemble multiple groups of bolts, which is time-consuming and makes the replacement of the working head inconvenient. Summary of the invention

[0004] The utility model aims to provide an air guide structure of an air conditioner, which can solve the problem that the reaction arm is tightly attached to the support and cannot be removed after being pressed by the hydraulic wrench. The problem is solved by pressure regulation, which takes a certain amount of time, thereby affecting the tightening efficiency of bolts or nuts. In addition, the working head in the hydraulic wrench is generally fixed by bolts. When replacing working heads of different sizes, auxiliary tools are required to disassemble and assemble multiple groups of bolts, which is time-consuming and makes it inconvenient to replace the working head.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic wrench structure, comprising a wrench body, a reaction arm is arranged on the outer surface of the wrench body, a rotating shell is arranged on the inner surface of the wrench body, the outer surface of the rotating shell is rotatably connected with a fixing plate, the fixing plate is fixedly connected to the wrench body, the inner surface of the rotating shell is fixedly connected with a limiting guide block, the outer surface of the limiting guide block is slidably plugged with a working head, four blind holes are symmetrically provided on the outer surface of the working head, the lower inner surface of the reaction arm is rotatably connected with a supporting mechanism, the inner surface of the rotating shell is rotatably connected with a fixing mechanism, and the four blind holes are all slidably plugged with the fixing mechanism.

[0006] Preferably, a label is bonded to the upper surface of the wrench body.

[0007] Preferably, the supporting mechanism comprises a threaded rod 1 rotatably connected to the inner surface of the lower part of the reaction arm, the middle outer surface of the threaded rod 1 is fixedly connected to a rotating block 1, the lower outer surface of the threaded rod 1 is threadedly connected to a connecting plate 1, the lower surface of the connecting plate 1 is symmetrically fixedly connected to a connecting rod 1, one end of the two connecting rods 1 is fixedly connected to a supporting plate 1, the upper outer surface of the threaded rod 1 is fixedly connected to a bevel gear 1, the outer surface of the bevel gear 1 is symmetrically meshed and connected to two bevel gears 2, the end face of the bevel gear 2 is fixedly connected to a threaded rod 2, the two threaded rods 2 are both rotatably connected to the reaction arm, the outer surface of the threaded rod 2 is threadedly connected to a connecting plate 2, one side surface of the connecting plate 2 is fixedly connected to two connecting rods 2, and one end of the two connecting rods 2 is fixedly connected to a supporting plate 2.

[0008] Preferably, the thread grooves of the two threaded rods 2 are arranged in opposite directions.

[0009] Preferably, a stabilizing rod is fixedly connected to the inner surface of the second support plate, and both of the stabilizing rods are slidably connected to the reaction arm.

[0010] Preferably, the support plate 1 and the support plate 2 are both made of stainless steel.

[0011] Preferably, the fixing mechanism includes a threaded rod three rotatably connected to the inner surface of the rotating shell, one end of the threaded rod three is fixedly connected to the rotating block two, the outer surface of the threaded rod three is threadedly connected to a slide plate, the slide plate is slidably connected to the rotating shell, the outer surface of the slide plate is symmetrically hinged with four connecting rods, one end of the connecting rod is hinged with a slider, the four sliders are all slidably connected to the rotating shell, one side surface of the slider is fixedly connected to a clamping block, and the clamping block is slidably plugged into a blind hole.

[0012] Preferably, the outer surfaces of the rotating block 1 and the rotating block 2 are both provided with anti-slip grooves.

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

[0014] 1. The present application sets a support mechanism and rotates the rotating block 1 to separate the support plate 1 or the support plate 2 from the adjacent support, thereby realizing the function of contact and separation between the support plate 1 or the support plate 2 and the adjacent support. When the hydraulic wrench cannot be taken out after being pressed, the hydraulic wrench can be taken out in a relatively short time, thereby improving the tightening efficiency of bolts or nuts;

[0015] 2. The present application sets a fixing mechanism, rotates the rotating block two, rotates the threaded rod three, and then moves the clamping block, thereby fixing or contacting the working head in a fixed state, thereby realizing the function of rapid disassembly and assembly of the working head, and can complete the installation and disassembly of the working head in a relatively short time, which is convenient for the replacement of working heads of different sizes and specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is the overall structural view of the utility model;

[0018] Figure 2 For this utility model Figure 1 A view of the rotating shell structure in ;

[0019] Figure 3 For this utility model Figure 1 The working head structure view in;

[0020] Figure 4 For this utility model Figure 2 The cross-sectional view of the rotating shell in FIG.

[0021] Figure 5 For this utility model Figure 1 Cross-sectional structural view of the reaction arm in FIG.

[0022] Figure 6 For this utility model Figure 5 Structural view of the support plate 2.

[0023] Description of reference numerals:

[0024] 1. Wrench body; 2. Reaction arm; 3. Rotating shell; 4. Fixed plate; 5. Limit guide block; 6. Working head; 7. Blind hole; 8. Support mechanism; 81. Threaded rod one; 82. Rotating block one; 83. Connecting plate one; 84. Connecting rod one; 85. Support plate one; 86. Bevel gear one; 87. Bevel gear two; 88. Threaded rod two; 89. Connecting plate two; 810. Connecting rod two; 811. Support plate two; 9. Fixed mechanism; 91. Threaded rod three; 92. Rotating block two; 93. Slide plate; 94. Connecting rod; 95. Sliding block; 96. Block; 10. Label; 11. Stabilizing rod. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figures 1 to 6 , the utility model provides a technical solution:

[0027] A hydraulic wrench structure comprises a wrench body 1, a reaction arm 2 is arranged on the outer surface of the wrench body 1, a rotating shell 3 is arranged on the inner surface of the wrench body 1, a fixed plate 4 is rotatably connected to the outer surface of the rotating shell 3, the fixed plate 4 is fixedly connected to the wrench body 1, a limiting guide block 5 is fixedly connected to the inner surface of the rotating shell 3, a working head 6 is slidably inserted on the outer surface of the limiting guide block 5, four blind holes 7 are symmetrically opened on the outer surface of the working head 6, a supporting mechanism 8 is rotatably connected to the lower inner surface of the reaction arm 2, a fixing mechanism 9 is rotatably connected to the inner surface of the rotating shell 3, and the four blind holes 7 are all slidably inserted with the fixing mechanism 9.

[0028] Specifically, Figure 1 As shown, a label 10 is bonded to the upper surface of the wrench body 1, and the label 10 is used to facilitate viewing of relevant information of the product.

[0029] Specifically, Figure 1 , Figure 5 and Figure 6 As shown, the supporting mechanism 8 includes a threaded rod 81 rotatably connected to the inner surface of the lower part of the reaction arm 2, a rotating block 82 is fixedly connected to the middle outer surface of the threaded rod 81, a connecting plate 83 is threadedly connected to the lower outer surface of the threaded rod 81, a connecting rod 84 is symmetrically fixedly connected to the lower surface of the connecting plate 83, one end of the two connecting rods 84 is fixedly connected to a supporting plate 85, a bevel gear 86 is fixedly connected to the upper outer surface of the threaded rod 81, the outer surface of the bevel gear 86 is symmetrically meshed and connected to two bevel gears 87, the end surface of the bevel gear 87 is fixedly connected to a threaded rod 88, the two threaded rods 88 are both rotatably connected to the reaction arm 2, the outer surface of the threaded rod 88 is threadedly connected to a connecting plate 89, one side surface of the connecting plate 89 is fixedly connected to two connecting rods 810, and one end of the two connecting rods 810 is fixedly connected to a supporting plate 811.

[0030] When in use, the rotating block 82 is rotated, and the threaded rod 81 is rotated by the rotation of the rotating block 82, thereby driving the connecting plate 83 to move, the bevel gear 86 to rotate, and then the connecting rod 84 is moved by the movement of the connecting plate 83, thereby driving the support plate 85 to move down to a suitable position. At the same time, the bevel gear 86 is rotated to drive the bevel gear 87 to rotate, thereby driving the threaded rod 88 to rotate, and then the connecting plate 89 is moved by the rotation of the threaded rod 88, thereby driving the connecting rod 810 to move, and then the connecting rod 810 is moved. 10 moves and drives the support plate 2 811 to move outward to a suitable position, and the support plate 1 85 moved down to a suitable position or the support plate 2 811 moved outward to a suitable position contacts with the adjacent supports for support, so that the force applied to the hydraulic wrench is converted into a reaction force to achieve the tightening of the bolts or nuts. When the hydraulic wrench cannot be taken out after being pressed, the rotating block 1 82 is reversed to restore the support plate 1 85 and the support plate 2 811 to their original positions, and the contact state between the support plate 1 85 or the support plate 2 811 and the adjacent supports is released, and the hydraulic wrench can be removed;

[0031] The function of contacting and separating the support plate 1 85 or the support plate 2 811 from the adjacent supports is realized. When the hydraulic wrench cannot be taken out after being pressed, the hydraulic wrench can be taken out in a relatively short time, thereby improving the tightening efficiency of the bolts or nuts.

[0032] Specifically, Figure 5 As shown, the thread grooves of the two threaded rods 88 are arranged in opposite directions, so as to ensure that the support plates 811 on both sides can move outward or inward synchronously.

[0033] Specifically, Figure 5 and Figure 6 As shown, a stabilizing rod 11 is fixedly connected to the inner surface of the second support plate 811 , and both stabilizing rods 11 are slidably connected to the reaction arm 2 , so that the stability of the second support plate 811 is improved through the stabilizing rod 11 .

[0034] Specifically, Figure 5 and Figure 6 As shown, the materials of the support plate 1 85 and the support plate 2 811 are both stainless steel, which has the characteristics of corrosion resistance and high strength.

[0035] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the fixing mechanism 9 includes a threaded rod 3 91 rotatably connected to the inner surface of the rotating shell 3, one end of the threaded rod 3 91 is fixedly connected to a rotating block 2 92, the outer surface of the threaded rod 3 91 is threadedly connected to a slide plate 93, the slide plate 93 is slidably connected to the rotating shell 3, the outer surface of the slide plate 93 is symmetrically hinged with four connecting rods 94, one end of the connecting rod 94 is hinged with a slider 95, the four sliders 95 are all slidably connected to the rotating shell 3, one side surface of the slider 95 is fixedly connected to a clamping block 96, and the clamping block 96 is slidably plugged into the blind hole 7.

[0036] When the working head 6 is replaced, the working head 6 is pinched with one hand and the rotating block 2 92 is rotated with the other hand. The rotating block 2 92 is rotated to drive the threaded rod 3 91 to rotate, thereby driving the slide plate 93 to move, and then the slide plate 93 is moved to drive the connecting rod 94 to move, thereby driving the slider 95 to move in the opposite direction, and then the slider 95 is moved in the opposite direction to drive the clamping block 96 to move in the opposite direction and separate from the working head 6, so that the working head 6 can be removed, and then a working head 6 of another size specification is plugged into the limiting guide block 5, and then the rotating block 2 92 is reversed to make the slider 95 and the clamping block 96 move toward each other. When the clamping block 96 is plugged into the blind hole 7 on the working head 6, the position of the working head 6 is fixed. In this process, the limiting guide block 5 is plugged into the working head 6, so that the limiting guide block 5 is connected to the rotating shell 3 as a whole, ensuring that the rotating shell 3 and the threaded rod 3 91 will not rotate synchronously during disassembly and assembly;

[0037] The function of quick disassembly and assembly of the working head 6 is realized, and the installation and disassembly of the working head 6 can be completed in a relatively short time, which is convenient for replacing working heads 6 of different sizes and specifications.

[0038] Specifically, Figure 4 and Figure 5 As shown, the outer surfaces of the rotating block 1 82 and the rotating block 2 92 are both provided with anti-slip grooves to increase the contact friction with the fingers and facilitate the rotation of the rotating block 1 82 and the rotating block 2 92 .

[0039] Working principle: When in use, rotate the rotating block 1 82 to move the support plate 1 85 down to a suitable position and the support plate 2 811 outward to a suitable position, and then support the support plate 1 85 or the support plate 2 811 by contacting with the adjacent support object to convert the force applied to the hydraulic wrench into a reaction force to achieve the tightening of the bolts or nuts. When the hydraulic wrench cannot be taken out after being pressed, reverse the rotating block 1 82 to restore the support plate 1 85 and the support plate 2 811 to their original positions, release the contact state between the support plate 1 85 or the support plate 2 811 and the adjacent support object, and then the hydraulic wrench can be taken out;

[0040] When the working head 6 is replaced, hold the working head 6 with one hand and rotate the rotating block 2 92 with the other hand to make the clamping block 96 move in the opposite direction and separate from the working head 6, and then remove the working head 6. Then, plug a working head 6 of another size into the limiting guide block 5, and then reverse the rotating block 2 92 to plug the clamping block 96 into the blind hole 7 to fix the position of the working head 6.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A hydraulic wrench structure, comprising a wrench body (1), characterized in that: The outer surface of the wrench body (1) is provided with a reaction arm (2), the inner surface of the wrench body (1) is provided with a rotating shell (3), the outer surface of the rotating shell (3) is rotatably connected to a fixing plate (4), the fixing plate (4) is fixedly connected to the wrench body (1), the inner surface of the rotating shell (3) is fixedly connected to a limiting guide block (5), the outer surface of the limiting guide block (5) is slidably plugged with a working head (6), the outer surface of the working head (6) is symmetrically provided with four blind holes (7), the lower inner surface of the reaction arm (2) is rotatably connected to a supporting mechanism (8), the inner surface of the rotating shell (3) is rotatably connected to a fixing mechanism (9), and the four blind holes (7) are all slidably plugged with the fixing mechanism (9).

2. A hydraulic wrench structure according to claim 1, characterized in that: A label (10) is bonded to the upper surface of the wrench body (1).

3. A hydraulic wrench structure according to claim 1, characterized in that: The support mechanism (8) comprises a threaded rod (81) rotatably connected to the inner surface of the lower part of the reaction arm (2); a rotating block (82) is fixedly connected to the middle outer surface of the threaded rod (81); a connecting plate (83) is threadedly connected to the lower outer surface of the threaded rod (81); a connecting rod (84) is symmetrically fixedly connected to the lower surface of the connecting plate (83); one end of the two connecting rods (84) is fixedly connected to a support plate (85); and a bevel gear is fixedly connected to the upper outer surface of the threaded rod (81). Wheel one (86), the outer surface of the bevel gear one (86) is symmetrically meshed with two bevel gears two (87), the end surface of the bevel gear two (87) is fixedly connected with a threaded rod two (88), the two threaded rods two (88) are both rotatably connected to the reaction arm (2), the outer surface of the threaded rod two (88) is threadedly connected with a connecting plate two (89), one side surface of the connecting plate two (89) is fixedly connected with two connecting rods two (810), and one end of the two connecting rods two (810) is fixedly connected with a support plate two (811).

4. A hydraulic wrench structure according to claim 3, characterized in that: The thread grooves of the two threaded rods (88) are arranged in opposite directions.

5. A hydraulic wrench structure according to claim 3, characterized in that: The inner surface of the second support plate (811) is fixedly connected with a stabilizing rod (11), and the two stabilizing rods (11) are both slidably connected to the reaction arm (2).

6. A hydraulic wrench structure according to claim 5, characterized in that: The support plate 1 (85) and the support plate 2 (811) are both made of stainless steel.

7. A hydraulic wrench structure according to claim 3, characterized in that: The fixing mechanism (9) comprises a threaded rod (91) rotatably connected to the inner surface of the rotating shell (3); one end of the threaded rod (91) is fixedly connected to a rotating block (92); the outer surface of the threaded rod (91) is threadedly connected to a slide plate (93); the slide plate (93) is slidably connected to the rotating shell (3); four connecting rods (94) are symmetrically hinged on the outer surface of the slide plate (93); one end of the connecting rod (94) is hinged to a slider (95); the four sliders (95) are all slidably connected to the rotating shell (3); a clamping block (96) is fixedly connected to a side surface of the slider (95); the clamping block (96) is slidably plugged into the blind hole (7).

8. A hydraulic wrench structure according to claim 7, characterized in that: The outer surfaces of the rotating block 1 (82) and the rotating block 2 (92) are both provided with anti-slip grooves.

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