Hydraulic wrench tool

Abstract

The utility model relates to the technical field of bolt fastening, and discloses a hydraulic wrench tool. The hydraulic wrench tool comprises a walking frame, a supporting plate and a limiting piece, the walking frame is arranged to be capable of walking on the top face of a flange, the supporting plate is provided with a connecting piece used for being connected with a hydraulic wrench, and the supporting plate is rotationally arranged on the walking frame so that the position of the hydraulic wrench in the vertical direction can be changed through rotation of the supporting plate; the limiting piece can limit the position of the supporting plate after the supporting plate is turned over by a certain angle. Based on the hydraulic wrench tool, when the hydraulic wrench tool is used, the walking frame can directly walk on the top face of a flange, movement of the walking frame is not limited by space, the application range is enlarged, the walking frame is convenient to move, the working intensity of workers is effectively reduced, meanwhile, lifting and lowering of the hydraulic wrench are achieved by rotating the supporting plate, operation is convenient, and the working efficiency is improved. And the position of the supporting plate can be kept through the limiting piece, and the using effect of the hydraulic wrench is ensured.

Description

Technical Field

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

[0002] Currently, in the field of high-strength bolt tightening, the preload and torque of the bolts need to be precisely controlled during the actual tightening process, and for this, a hydraulic torque wrench is needed. Some hydraulic torque wrenches are heavy in weight. For example, a 20-type hydraulic wrench with a 95mm sleeve on the opposite side weighs more than 40kg. The bolt connection flange of the wind turbine tower is roughly 1.5m high on the platform. When tightening high-strength bolts, the hydraulic wrench and sleeve need to be carried back and forth. The traditional method of transportation is to lift the hydraulic torque wrench repeatedly by hand. This process requires the cooperation of multiple people and has high work intensity and certain safety risks, which is very inconvenient when tightening bolts.

[0003] In this regard, one solution is to use a tripod support frame with a small electric hoist to lift the electric wrench for transportation. Although this transportation method can reduce the work intensity during transportation, it is extremely inconvenient in the actual transportation process. It is also limited by space, and some positions cannot be used. The scope of application is small, and the lifting method of the electric wrench is inconvenient to operate, which affects work efficiency. Utility Model Content

[0004] In order to solve the above technical problem or at least partially solve the above technical problem, the utility model provides a hydraulic wrench manual assembly.

[0005] The utility model provides a hydraulic wrench manual device, comprising a walking frame, a support plate and a limit piece, wherein the walking frame is configured to be able to walk on the top surface of a flange, the support plate is provided with a connecting piece for connecting with a hydraulic wrench, the support plate is rotatably arranged on the walking frame to change the position of the hydraulic wrench in the vertical direction by rotating the support plate, and the limit piece can limit the position of the support plate after the support plate is flipped over a certain angle.

[0006] Optionally, the walking frame includes a bottom bracket and a support frame arranged on the top of the bottom bracket, the support plate is rotatably arranged on the support frame, the bottom of the bottom bracket is provided with a walking wheel group capable of walking on the top surface of the flange, and the side of the support frame is provided with a first centering wheel group capable of walking on the cylinder wall.

[0007] Optionally, a second centering wheel group capable of moving on the cylinder wall is provided on one side of the bottom bracket, and the first centering wheel group and the second centering wheel group are located in the same vertical plane.

[0008] Optionally, the bottom bracket is provided with a supporting surface for supporting part of the hydraulic wrench and a receiving groove for receiving part of the hydraulic wrench, and one side of the supporting surface is provided with an escape opening for the sleeve to pass through.

[0009] Optionally, the walking wheel set is arranged on a side of the bottom of the bottom bracket away from the avoidance opening.

[0010] Optionally, the support plate includes a support frame rotatably arranged on the walking frame and a cross brace arranged on the support frame, and the connecting member includes a lifting ring arranged on the cross brace and a lifting rope arranged on the lifting ring, and the end of the lifting rope is used to connect with the hydraulic wrench.

[0011] Optionally, the hydraulic wrench manual assembly also includes a hydraulic rod, one end of the hydraulic rod is connected to the walking frame, and the other end of the hydraulic rod is connected to the support frame. The hydraulic rod is used to provide thrust to the support frame, and the end of the hydraulic rod connected to the support frame is opposite to the end position of the cross brace.

[0012] Optionally, the support frame includes two relatively arranged swivel arms and a connecting arm for connecting the ends of the two swivel arms, the swivel arms are hingedly connected to the walking frame, the swivel arms include a first part and a second part located on both sides of the hinge position of the swivel arms and the walking frame, the length of the first part is greater than the length of the second part, and the two ends of the cross brace are respectively connected to the two second parts.

[0013] Optionally, the support plate and the walking frame are hingedly connected via a rotating shaft, the limiting member is arranged on the outer periphery of the rotating shaft, the limiting member comprises a limiting groove arranged on the support plate and an X-shaped member rotatably arranged on the walking frame, the X-shaped member has a first clamping groove and a second clamping groove arranged oppositely, the inner circle of the limiting groove is provided with a first clamping block, the outer circle is provided with a second clamping block opposite to the first clamping block, and is configured as follows:

[0014] By pressing the support plate once, the second card block can be inserted into the first card slot to push the X-shaped member to rotate, and when the support plate is released, the support plate is reversed, and the first card block can be inserted into the second card slot:

[0015] By pressing the support plate twice, the second block can push the X-shaped piece to rotate, and when the support plate is released, the support plate reverses, and the first block can push the X-shaped piece to rotate again, so that the X-shaped piece rotates half a circle relative to the initial state.

[0016] Optionally, both the inner ring and the outer ring of the limiting groove are provided with avoidance holes for providing avoidance space for the rotation of the X-shaped member.

[0017] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0018] Based on the hydraulic wrench manual assembly provided by the utility model, when in use, the hydraulic wrench can be connected to the support plate through the connecting piece, and the walking frame can be placed on the top surface of the flange, so that the walking frame can directly walk on the top surface of the flange, and the movement of the walking frame is not limited by space, which increases the scope of application, and the walking frame is easy to move, which effectively reduces the work intensity of the staff. At the same time, the lifting and lowering of the hydraulic wrench are achieved by rotating the support plate, which is convenient to operate and increases work efficiency. The position of the support plate can be maintained by the limiter to ensure the use effect of the hydraulic wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0020] In order to more clearly illustrate the implementation mode of the utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural schematic diagram of the hydraulic wrench assembly described in the embodiment of the utility model;

[0022] Figure 2 This is a front view of the hydraulic wrench assembly described in the embodiment of the utility model;

[0023] Figure 3 This is a structural schematic diagram of the hydraulic wrench in the manual working state according to the embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the hydraulic wrench according to the embodiment of the utility model when the sleeve is manually driven to separate from the bolt;

[0025] Figure 5 This is a structural schematic diagram of the hydraulic wrench in the initial state of manual assembly according to the embodiment of the utility model;

[0026] Figure 6 for Figure 5 A positional relationship diagram of the X-shaped piece and the limit groove of the hydraulic wrench;

[0027] Figure 7 It is a structural schematic diagram of the hydraulic wrench manual assembly described in the embodiment of the utility model after being pressed once;

[0028] Figure 8 for Figure 7 A positional relationship diagram of the X-shaped piece and the limit groove of the hydraulic wrench;

[0029] Fig. 9 It is a structural schematic diagram of a first clamping block in the hydraulic wrench manual assembly of the utility model when it is clamped into the first clamping groove;

[0030] Fig.10 for Fig. 9 A positional relationship diagram of the X-shaped piece and the limit groove of the hydraulic wrench;

[0031] Fig.11 This is a structural schematic diagram of the second card block being stuck in the second card slot after the support plate is reversed according to the embodiment of the utility model;

[0032] Fig.12 for Fig.11 A positional relationship diagram of the X-shaped piece and the limit groove of the hydraulic wrench;

[0033] Fig.13 It is a structural schematic diagram of the hydraulic wrench manual assembly described in the embodiment of the utility model after being pressed twice;

[0034] Fig.14 for Fig.13 A positional relationship diagram of the X-shaped piece and the limit groove of the hydraulic wrench;

[0035] Fig.15 This is a structural schematic diagram of the embodiment of the utility model when the second clamping block pushes the X-shaped member to rotate after the support plate is reversed;

[0036] Fig.16 for Fig.15 A positional relationship diagram of the X-shaped piece and the limit groove of the hydraulic wrench;

[0037] Fig.17 This is a schematic diagram of the structure of the X-shaped member according to the embodiment of the utility model when it rotates half a circle relative to the initial state;

[0038] Fig.18 for Fig.17 A diagram showing the position relationship between the X-shaped part manually installed on the hydraulic wrench and the limit groove.

[0039] Description of Reference Numerals

[0040] 1. Traveling frame; 11. Bottom bracket; 111. Traveling wheel group; 112. Second centering wheel group; 113. Accommodating groove; 114. Avoidance; 12. Support frame; 121. First centering wheel group; 13. Rotating shaft; 2. Support plate; 21. Support frame; 211. Rotating arm; 2111. First part; 2112. Second part; 212. Connecting arm; 22. Cross brace; 3. Limiting piece; 31. Limiting groove; 311. First clamping block; 312. Second clamping block; 32. X-shaped piece; 321. First clamping slot; 322. Second clamping slot; 323. Avoidance hole; 4. Flange; 5. Hydraulic wrench; 51. Sleeve; 6. Connecting piece; 61. Lifting ring; 62. Lifting rope; 7. Hydraulic rod; 8. Cylinder wall; 9. Nut. DETAILED DESCRIPTION

[0041] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0042] The following description sets forth many specific details to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the implementation methods in the specification are only part of the implementation methods of the present invention, rather than all of the implementation methods.

[0043] Combination Figures 1 to 4 As shown, the hydraulic wrench assembly provided by the embodiment of the utility model includes a traveling frame 1, a support plate 2 and a stopper 3, and the traveling frame 1 is configured to be able to travel on the top surface of the flange 4. Figure 3 and Figure 4 As shown, the flange 4 is arranged on the cylinder wall 8, specifically on the inner wall of the cylinder, and the flange 4 is an annular structure, the walking frame 1 should be able to walk on the flange 4 along the cylinder wall 8, and the walking track of the walking frame 1 can avoid the nut 9 on the flange 4. A connecting piece 6 for connecting with the hydraulic wrench 5 is provided on the support plate 2, wherein the connection method of the connecting piece 6 and the hydraulic wrench 5 is not limited and can be designed according to actual needs. The support plate 2 is rotatably arranged on the walking frame 1 to change the position of the hydraulic wrench 5 in the vertical direction by rotating the support plate 2, and the limiter 3 can limit the position of the support plate 2 after the support plate 2 is flipped to a certain angle. Specifically, the rotating shaft 13 between the support plate 2 and the walking frame 1 extends in the horizontal direction so that the support plate 2 can rotate in the vertical direction, and the connecting piece 6 is arranged on one side of the rotating shaft 13 so that the support plate 2 can drive the hydraulic wrench 5 to move in the vertical direction through the connecting piece 6 during the rotation process, and after the support plate 2 is flipped to a certain angle, the position of the support plate 2 can be maintained by the limiter 3.

[0044] Based on the hydraulic wrench manual assembly provided by the utility model, when in use, the hydraulic wrench 5 can be connected to the support plate 2 through the connecting piece 6, and the walking frame 1 can be placed on the top surface of the flange 4, so that the walking frame 1 can walk directly on the top surface of the flange 4, and the movement of the walking frame 1 is not limited by space, which increases the scope of application, and the walking frame 1 is easy to move, which effectively reduces the work intensity of the staff. At the same time, the lifting and lowering of the hydraulic wrench 5 are achieved by rotating the support plate 2, which is convenient to operate and increases work efficiency. The position of the support plate 2 can be maintained by the limiter 3 to ensure the use effect of the hydraulic wrench 5.

[0045] In some embodiments, in combination Figures 1 to 4 As shown, the walking frame 1 includes a bottom bracket 11 and a support frame 12 arranged on the top of the bottom bracket 11, the support plate 2 is rotatably arranged on the support frame 12, the bottom of the bottom bracket 11 is provided with a walking wheel group 111 that can walk on the top surface of the flange 4, and the side of the support frame 12 is provided with a first centering wheel group 121 that can walk on the cylinder wall 8.

[0046] Specifically, the support frame 12 includes two tripods arranged opposite to each other, one end of the long side of the tripod is connected to the edge of the bottom bracket 11, and the support plate 2 is hingedly connected to the other end of the long side of the tripod. The walking wheel group 111 includes a walking wheel frame arranged below the bottom bracket 11 and a walking wheel arranged at the bottom of the walking wheel frame. There can be multiple walking wheels, and the multiple walking wheels are evenly distributed below the bottom bracket 11, and the multiple walking wheels should avoid the nut 9. The connection between the two short sides of the tripod is connected by a cross bar to increase the structural strength of the support frame 12. The first centering wheel group 121 includes two first centering wheels, and the two first centering wheels are respectively arranged at the connection between the two short sides of the two tripods, so that the second centering wheel can be supported on the cylinder wall 8 through the tripod, so that the second centering wheel can walk on the cylinder wall 8. The walking frame 1 under this design can stably walk on the top surface of the flange 4 and fit the cylinder wall 8 to ensure the stability of walking.

[0047] In other embodiments, a second centering wheel set 112 capable of moving on the cylinder wall 8 is provided on one side of the bottom bracket 11 , and the first centering wheel set 121 and the second centering wheel set 112 are located in the same vertical plane.

[0048] Specifically, combined Figure 3 and Figure 4 As shown, the second centering wheel group 112 includes two second centering wheels arranged on the side of the bottom bracket 11, and correspondingly, the first centering wheel group 121 includes two first centering wheels, and the two first centering wheels correspond to the two second centering wheels in the vertical direction. This design method allows the side of the walking frame 1 to be supported on the cylinder wall 8 through the two first centering wheels and the two second centering wheels, ensuring the stability of the movement of the walking frame 1.

[0049] Combination Figures 1 to 4 As shown, the bottom bracket 11 is provided with a supporting surface for supporting part of the hydraulic wrench 5 and a receiving groove 113 for receiving part of the hydraulic wrench 5, and a side of the supporting surface is provided with an escape opening 114 for the sleeve 51 to pass through.

[0050] Specifically, the bottom bracket 11 adopts a frame structure to reduce its own weight. Figure 2 Taking the direction shown as an example, a support surface is formed on the top surface of the right side portion of the bottom bracket 11 to support part of the hydraulic wrench 5 through the support surface, and a receiving groove 113 is formed on the left side portion of the bottom bracket 11 to allow the irregular part of the hydraulic wrench 5 to extend into the receiving groove 113 to ensure the support effect of the hydraulic wrench 5. A clearance opening 114 is formed on the right side of the bottom bracket 11 corresponding to the support surface, so that the sleeve 51 can extend downward from the bottom bracket 11 through the clearance opening 114 to be used for sleeve engagement with the nut 9. At this time, the sleeve 51 is meshed with the nut 9, so that the hydraulic wrench 5 and the sleeve 51 can screw the nut 9, and the reaction force arm of the hydraulic wrench 5 rests on the adjacent bolts to tighten the bolts.

[0051] Further optimized, the walking wheel set 111 is arranged on the side of the bottom of the bottom bracket 11 away from the avoidance opening 114. Under this design, the bottom structure of the bottom bracket 11 can avoid the nut 9 to ensure that the walking frame 1 can walk on the top surface of the flange 4.

[0052] Combination Figure 1 and Figure 2 As shown, the support plate 2 includes a support frame 21 rotatably arranged on the walking frame 1 and a cross brace 22 arranged on the support frame 21, and the connecting member 6 includes a lifting ring 61 arranged on the cross brace 22 and a lifting rope 62 arranged on the lifting ring 61, and the end of the lifting rope 62 is used to connect with the hydraulic wrench 5. Among them, the lifting rope 62 can be a steel wire rope, etc., to ensure the connection strength.

[0053] Specifically, the support frame 21 adopts a frame structure to reduce its own weight, and the cross brace 22 is arranged on the support frame 21 according to the design requirements to serve as a support basis for the hydraulic wrench 5. A lifting ring 61 is fixedly provided on the cross brace 22, and the design position of the lifting ring 61 should meet the installation requirements of the hydraulic wrench 5. The top end of the lifting rope 62 is connected to the lifting ring 61, and the bottom end of the lifting rope 62 is also connected to the hydraulic wrench 5 through the annular structure, which increases the convenience of connecting the hydraulic wrench 5 with the cross brace 22.

[0054] In some embodiments, the hydraulic wrench manual device also includes a hydraulic rod 7, one end of the hydraulic rod 7 is connected to the walking frame 1, and the other end of the hydraulic rod 7 is connected to the support frame 21. The hydraulic rod 7 is used to provide thrust to the support frame 21, and the end of the hydraulic rod 7 connected to the support frame 21 is opposite to the end position of the cross brace 22.

[0055] Specifically, there are two hydraulic rods 7, and the two hydraulic rods 7 are arranged at intervals. The bottom end of the hydraulic rod 7 is connected to the top of the bottom bracket 11, and the other end of the hydraulic rod 7 is connected to the support frame 21, so that the hydraulic rod 7 provides an upward force for the part of the support frame 21 connected to the hydraulic wrench 5, so that when the staff presses the other part of the support frame 21, the hydraulic rod 7 can provide an upward force, so as to reduce the staff's force and increase the convenience of the staff's operation. The end pressed by the staff is the operating end of the support frame 21, that is, the operating end of the support plate 2.

[0056] Among them, the hydraulic rod 7 can be a thrust hydraulic rod 7, and the thrust hydraulic rod 7 is a conventional technology in this field, so its structure and working principle are not described in detail here.

[0057] The support frame 21 of the present application includes two rotating arms 211 arranged opposite to each other and a connecting arm 212 for connecting the ends of the two rotating arms 211, so that the support frame 21 forms a rectangular frame structure. The rotating arm 211 is hingedly connected to the walking frame 1, and the rotating arm 211 includes a first part 2111 and a second part 2112 located on both sides of the hinge position of the rotating arm 211 and the walking frame 1, the length of the first part 2111 is greater than the length of the second part 2112, and the two ends of the cross brace 22 are respectively connected to the two second parts 2112.

[0058] Specifically, Figure 5 Taking the direction shown as an example (the figure only illustrates the structural connection relationship and does not limit the distance between the components), the part of the rotating arm 211 located on the right side of the rotating shaft 13 is the first part 2111 of the rotating arm 211, and the part of the rotating arm 211 located on the left side of the rotating shaft 13 is the second part 2112 of the rotating arm 211. The length of the first part 2111 of the rotating arm 211 is greater than the length of the second part 2112 of the rotating arm 211, so that the first part 2111 of the rotating arm 211 can extend out of the flange 4, which is convenient for manual holding, and the rotating arm 211 forms a cylinder rod structure, which is convenient for the staff to exert force. Preferably, the length ratio of the first part 2111 to the second part 2112 is 2:1.

[0059] In some embodiments, the limit member 3 includes a plurality of first sockets disposed on the support plate 2 and a second socket disposed on the walking frame 1. When the support plate 2 rotates to different angles, the positions of different first sockets are relative to the second sockets, and the position of the support plate 2 can be fixed by passing the pin through the first socket and the second socket, which is convenient for operation.

[0060] In other embodiments, in combination Figures 5 to 18As shown, the support plate 2 and the walking frame 1 are hingedly connected via a rotating shaft 13, and the limiting member 3 is arranged on the outer periphery of the rotating shaft 13. The limiting member 3 includes a limiting groove 31 arranged on the support plate 2 and an X-shaped member 32 rotatably arranged on the walking frame 1, and the X-shaped member 32 can slide relative to the limiting groove 31. The X-shaped member 32 has a first clamping groove 321 and a second clamping groove 322 which are arranged opposite to each other. The inner circle of the limiting groove 31 is provided with a first clamping block 311, and the outer circle is provided with a second clamping block 312 which is opposite to the first clamping block 311. The configuration is as follows: by pressing the support plate 2 once, the second clamping block 312 can be clamped into the first clamping groove 321 to push the X-shaped member 32 to rotate, and when the support plate 2 is released, the support plate 2 reverses, and the first clamping block 311 can be clamped in the second clamping groove 322: by pressing the support plate 2 a second time, the second clamping block 312 can push the X-shaped member 32 to rotate, and when the support plate 2 is released, the support plate 2 reverses, and the first clamping block 311 can push the X-shaped member 32 to rotate again, so that the X-shaped member 32 rotates half a circle relative to the initial state.

[0061] The specific operation process is as follows:

[0062] Step S1, combining Figure 3 , Figure 5 and Figure 6 As shown, under normal conditions, the limit member 3 does not participate in the work, and the support plate 2 flips downward under the action of the gravity of the hydraulic wrench 5 until the end of the X-shaped member 32 contacts the end of the limit groove 31. At this time, the hydraulic wrench 5 is at the bottom, and the sleeve 51 is sleeved on the outer periphery of the nut 9, so that the hydraulic wrench 5 performs corresponding operations.

[0063] Step S2, combining Figure 7 and Figure 8 As shown, when the position of the walking frame 1 needs to be moved, the operating end of the support plate 2 is pressed once. At this time, the non-operating end of the support plate 2 is tilted, and the hydraulic rod 7 can provide an upward supporting force for the non-operating end of the support plate 2 to reduce the force of the staff. At the same time, as the support plate 2 flips, the position of the X-shaped member 32 in the limit groove 31 changes until the second block 312 contacts the inner side of the first slot 321. As the support plate 2 rotates, under the action of the slope surface of the first slot 321, the X-shaped member 32 will rotate in the clockwise direction. Combined with Fig. 9 and Fig.10 As shown, until the second clamping block 312 is engaged with the first clamping slot 321, the support plate 2 cannot be rotated further. Fig.11 and Fig.12As shown, at this time, the support plate 2 can be loosened, and the support plate 2 is reversed under the gravity of the hydraulic wrench 5. At this time, the support plate 2 slowly moves downward under the action of the hydraulic rod 7 until the first clamping block 311 contacts the inner side of the second clamping groove 322. As the support plate 2 rotates, under the action of the slope surface of the second clamping groove 322, the X-shaped member 32 will continue to rotate in the clockwise direction until the first clamping block 311 is clamped with the second clamping groove 322, and the support plate 2 is limited to a certain angle. At this time, as shown in FIG. Figure 4 As shown, the sleeve 51 is disengaged from the nut 9 .

[0064] Step S3, moving the position of the walking frame 1 so that the sleeve 51 is located above the next nut 9.

[0065] Step S4, the operating end of the support plate 2 is pressed for the second time, so that the first card block 311 is disengaged from the second card slot 322. At this time, the support plate 2 continues to rotate, and the second card slot 322 is connected to the support plate 2. Fig.13 and Fig.14 As shown, the end of the second clamping block 312 contacts the X-shaped member 32. As the support plate 2 rotates, the second clamping block 312 pushes the X-shaped member 32 to rotate. When the second clamping block 312 pushes the X-shaped member 32 to rotate a certain angle, the support plate 2 is released. At this time, the combination Fig.15 and Fig.16 As shown, the support plate 2 is turned over, and the first clamping block 311 pushes the other end of the X-shaped plate, so that the X-shaped member 32 continues to rotate until the sleeve 51 on the hydraulic wrench 5 is sleeved on the corresponding nut 9, and then the hydraulic wrench 5 is engaged with the first clamping block 311. Fig.17 and Fig.18 As shown, the X-shaped member 32 rotates half a circle relative to the initial state. At this time, the X-shaped member 32 contacts the end of the limiting groove 31 to maintain the position of the hydraulic wrench 5.

[0066] For further optimization, the inner and outer rings of the limiting groove 31 are provided with avoidance holes 323 for providing avoidance space for the rotation of the X-shaped member 32. By setting the avoidance holes 323, avoidance space can be provided for the rotation of the X-shaped member 32 to avoid affecting the normal use of the X-shaped member 32.

[0067] It can be seen that when using a hydraulic wrench 5 with a relatively high weight, the hydraulic wrench 5 can be installed on the cross brace 22 of the hydraulic wrench manual assembly through the connecting piece 6, and the hydraulic wrench 5 is specifically connected to the cross brace 22 through the lifting rope 62. When in use, after the first bolt is tightened, the support plate 2 is pressed down, and the hydraulic wrench 5 is lifted up by the lever principle. After being lifted up, the support plate 2 is clamped, and the hydraulic wrench 5 is suspended in the air. Then, the hydraulic wrench manual assembly is moved to align its sleeve 51 with the nut 9 on the next bolt, and the support plate 2 is pressed again, and the hydraulic wrench 5 is lowered, so that its sleeve 51 and the nut 9 are meshed with each other, and the bolt is tightened, and so on.

[0068] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0069] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A hydraulic wrench manual assembly, characterized in that: The invention comprises a walking frame (1), a support plate (2) and a limiting member (3); the walking frame (1) is arranged to be able to walk on the top surface of a flange (4); the support plate (2) is provided with a connecting member (6) for connecting with a hydraulic wrench (5); the support plate (2) is rotatably arranged on the walking frame (1) so that the position of the hydraulic wrench (5) in the vertical direction can be changed by the rotation of the support plate (2); and the limiting member (3) can limit the position of the support plate (2) after the support plate (2) is flipped at a certain angle.

2. The hydraulic wrench assembly according to claim 1, characterized in that: The walking frame (1) comprises a bottom bracket (11) and a support frame (12) arranged on the top of the bottom bracket (11); the support plate (2) is rotatably arranged on the support frame (12); a walking wheel group (111) capable of walking on the top surface of a flange (4) is provided at the bottom of the bottom bracket (11); and a first centering wheel group (121) capable of walking on a cylinder wall (8) is provided on the side of the support frame (12).

3. The hydraulic wrench assembly according to claim 2, characterized in that: A second centering wheel group (112) capable of moving on the cylinder wall (8) is provided on one side of the bottom bracket (11), and the first centering wheel group (121) and the second centering wheel group (112) are located in the same vertical plane.

4. The hydraulic wrench assembly according to claim 2, characterized in that: The bottom bracket (11) is provided with a support surface for supporting part of the hydraulic wrench (5) and a receiving groove (113) for receiving part of the hydraulic wrench (5), and one side of the support surface is provided with an escape opening (114) for the sleeve (51) to pass through.

5. The hydraulic wrench assembly according to claim 4, characterized in that: The running wheel set (111) is arranged on a side of the bottom of the bottom bracket (11) away from the avoidance opening (114).

6. The hydraulic wrench assembly according to claim 1, characterized in that: The support plate (2) comprises a support frame (21) rotatably arranged on the walking frame (1) and a cross brace (22) arranged on the support frame (21); the connecting member (6) comprises a lifting ring (61) arranged on the cross brace (22) and a lifting rope (62) arranged on the lifting ring (61); the end of the lifting rope (62) is used to be connected to a hydraulic wrench (5).

7. The hydraulic wrench assembly according to claim 6, characterized in that: The hydraulic wrench manual assembly also includes a hydraulic rod (7), one end of the hydraulic rod (7) is connected to the walking frame (1), and the other end of the hydraulic rod (7) is connected to the supporting frame (21), the hydraulic rod (7) is used to provide thrust to the supporting frame (21), and the end of the hydraulic rod (7) connected to the supporting frame (21) is opposite to the end position of the cross brace (22).

8. The hydraulic wrench assembly according to claim 6, characterized in that: The support frame (21) comprises two rotating arms (211) arranged opposite to each other and a connecting arm (212) for connecting the ends of the two rotating arms (211); the rotating arms (211) are hingedly connected to the walking frame (1); the rotating arms (211) comprise a first part (2111) and a second part (2112) located on both sides of a hinged position between the rotating arms (211) and the walking frame (1); the length of the first part (2111) is greater than the length of the second part (2112); and the two ends of the cross brace (22) are respectively connected to the two second parts (2112).

9. The hydraulic wrench assembly according to any one of claims 1 to 8, characterized in that: The support plate (2) and the walking frame (1) are hingedly connected via a rotating shaft (13); the limiting member (3) is arranged on the outer periphery of the rotating shaft (13); the limiting member (3) comprises a limiting groove (31) arranged on the support plate (2) and an X-shaped member (32) rotatably arranged on the walking frame (1); the X-shaped member (32) has a first clamping groove (321) and a second clamping groove (322) arranged opposite to each other; the inner ring of the limiting groove (31) is provided with a first clamping block (311); the outer ring is provided with a second clamping block (312) opposite to the first clamping block (311); and the configuration is as follows: By pressing the support plate (2) once, the second clamping block (312) can be clamped into the first clamping slot (321) to push the X-shaped member (32) to rotate, and when the support plate (2) is released, the support plate (2) reverses, and the first clamping block (311) can be clamped into the second clamping slot (322): By pressing the support plate (2) a second time, the second clamping block (312) can push the X-shaped member (32) to rotate, and when the support plate (2) is released, the support plate (2) reverses, and the first clamping block (311) can push the X-shaped member (32) to rotate again, so that the X-shaped member (32) rotates half a circle relative to the initial state.

10. The hydraulic wrench assembly according to claim 9, characterized in that: The inner ring and the outer ring of the limiting groove (31) are both provided with avoidance holes (323) for providing avoidance space for the rotation of the X-shaped member (32).

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