Bolt dismounting tool

Abstract

The utility model relates to a bolt dismounting tool which comprises a positioning mechanism and a clamp handle used for providing dismounting driving force for a target bolt, a containing cavity used for containing at least part of equipment to be dismounted is formed in the positioning mechanism, and a receding space used for containing part of the target bolt is formed. The receding space is communicated with the containing cavity and the external environment. The clamp handle is connected with the positioning mechanism and comprises a jacking part used for jacking the target bolt, and the jacking part corresponds to the receding space. According to the utility model, the dismounting efficiency can be improved and the dismounting time can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt disassembly, in particular to a bolt disassembly tool. Background Art

[0002] There are a lot of bolts on industrial equipment to achieve the connection between components. Taking valves as an example, pneumatic valves are an important part of the automation control process in the industrial field. According to their functions, they can be divided into pneumatic switch valves and pneumatic control valves. Pneumatic switch valves are mainly used for the connection and cutoff functions of the system medium, while pneumatic control valves are mainly used to adjust the flow and pressure of the medium, maintain water level stability, etc. Both are important components to ensure the stable and economic operation of the unit. Pneumatic valves are mainly composed of three parts: pneumatic actuators, valve bodies, and pneumatic control circuits. Pneumatic actuators are actuators that use air pressure to drive the opening and closing or regulating valves. They are also called pneumatic actuators or pneumatic devices. They are mainly in the form of diaphragm type and piston type. Among them, diaphragm pneumatic actuators have the advantages of simple structure, small size, light weight, sensitive and reliable action, etc., and are widely used in nuclear power units at home and abroad.

[0003] However, there are several obvious difficulties in disassembling the bolts of diaphragm pneumatic actuators: 1) After the rubber diaphragm of the diaphragm pneumatic actuator has been compressed for a long time, part of the rubber around the bolt hole will be squeezed into the bolt hole to fill the gap between the bolts and the bolt holes. Moreover, this part of the squeezed rubber will be hardened to a certain extent after being exposed to the air for a long time, which makes it difficult to disassemble the bolts of the pneumatic actuator during maintenance. 2) The rust of the bolts and the inappropriate anti-corrosion coating cause a certain adhesion between the bolts and the diaphragm box, making it difficult to disassemble the bolts. 3) In order to ensure the function of the actuator, the number of diaphragm box bolts is generally large (taking the main feed water system regulating valve of a nuclear power plant as an example, the number of actuator diaphragm box bolts of a single valve is 36), and the specifications are small, which makes it inconvenient for operators to grasp, resulting in very time-consuming disassembly work. If the relevant operations are in a high-radioactive area, it will also have a certain impact on the overall radiation dose of the personnel. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a bolt removal tool.

[0005] The utility model adopts the following technical solutions:

[0006] A bolt removal tool is constructed, comprising:

[0007] A positioning mechanism, wherein the positioning mechanism is formed with a receiving cavity for receiving at least a portion of the device to be disassembled, and a clearance space for receiving a portion of the target bolts, wherein the clearance space connects the receiving cavity with the external environment; and

[0008] A clamp handle is used for providing a disassembly driving force to the target bolt, the clamp handle is connected to the positioning mechanism and comprises a lifting portion for lifting the target bolt, and the lifting portion corresponds to the clearance space.

[0009] In some embodiments, the positioning mechanism includes a main body, the main body includes a top wall, a bottom wall and at least one side wall, and the top wall, the bottom wall and the at least one side wall together define the accommodating cavity;

[0010] The makeshift space includes a first makeshift space and a second makeshift space. The bottom wall defines the second makeshift space. The second makeshift space passes through the bottom wall in a thickness direction. The lifting portion corresponds to the second makeshift space, and the upper end surface of the lifting portion is parallel to the bottom wall. The top wall defines the first makeshift space. The first makeshift space corresponds to the second makeshift space.

[0011] In some embodiments, the side end portion of the accommodating cavity is connected to the outside world, the first clearance space and the second clearance space are both groove-shaped, and the grooves of the first clearance space and the second clearance space and the side end portion of the accommodating cavity connected to the outside world correspond to the positions on the main body.

[0012] In some embodiments, the side end of the accommodating cavity communicating with the outside world is away from the clamp handle, the notch of the first clearance space is located on the side of the top wall away from the clamp handle, and the notch of the second clearance space is located on the side of the bottom wall away from the clamp handle.

[0013] In some embodiments, the positioning mechanism further includes at least one limiting member for limiting the device to be disassembled in the accommodating cavity, and the limiting member is movably disposed on the main body.

[0014] In some embodiments, at least two limiting holes are formed on the top wall or the bottom wall, and the limiting members are screws, at least two in number, which are movably inserted into the limiting holes.

[0015] In some embodiments, the pliers handle is X-shaped, including a first handle portion and a second handle portion that are cross-arranged, the first handle portion and the second handle portion are rotatably connected, the first handle portion includes a longitudinal handle body and the lifting portion, the lifting portion is arranged at the first end of the handle body, and the first end of the second handle portion is connected to the positioning mechanism.

[0016] In some embodiments, the positioning mechanism includes a main body and a connecting portion, the main body defines the accommodating cavity and the clearance space, the connecting portion is disposed on the main body, and the first end of the second handle is rotatably connected to the connecting portion;

[0017] The upper end surface of the lifting part is parallel to the lower end surface of the main body, and the upper end surface is longitudinally arranged, and its axis is located on the same plane as the axis of the handle body.

[0018] In some embodiments, the connection portion includes a connection portion body and at least one limiting component for limiting the rotation angle of the second handle portion, the second handle portion is rotatably connected to the connection portion body, and the limiting component is disposed on the connection portion body.

[0019] In some embodiments, a buffer layer is provided on the surface of the lifting portion and / or the main body that contacts the equipment to be disassembled and the target bolt.

[0020] The utility model has the following advantages:

[0021] The utility model provides a positioning mechanism so that the device to be disassembled is limited in the accommodating cavity, and the lifting part is provided to lift the target bolt to achieve relative movement between the target bolt and the device to be disassembled, thereby solving the problem of difficulty in disassembly caused by rust, hardening, adhesion, etc. between the device to be disassembled and the target bolt due to long assembly time, and at the same time avoids the potential risk of damaging the device by the transmission disassembly mode;

[0022] The bolt disassembly tool constructed by the utility model has a simple structure and is easy to operate, thereby improving disassembly efficiency and shortening disassembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0024] Figure 1 It is a three-dimensional structural schematic diagram of a bolt removal tool in one embodiment of the utility model;

[0025] Figure 2 yes Figure 1 A front view of the bolt removal tool in FIG.

[0026] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure of the bolt removal tool in FIG.

[0027] Figure Number:

[0028] 1-bolt removal tool; 10-positioning mechanism; 20-clamp handle; 2-equipment to be removed; 3-target bolt;

[0029] 11-main body; 12-connecting part; 13-limiting member; 111-accommodating cavity; 112-top wall; 113-bottom wall; 114-side wall; 1121-first clearance space; 121-connecting part body; 122-first limiting member; 123-second limiting member;

[0030] 21 - first handle; 22 - second handle; 211 - handle body; 212 - lifting part. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "up", "down", "left", "right", "vertical", "horizontal", "bottom", "inside", "inside", "outside", etc. are based on the directions or positional relationships shown in some of the drawings, and are constructed and operated in a specific direction. They are only for the convenience of describing the present technical solution, and do not indicate that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0032] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0033] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0034] Figures 1 to 3 A bolt removal tool 1 in an embodiment of the utility model is shown, which can be used to remove bolts on small parts provided with bolts in various types of equipment to avoid the bolts being difficult to remove due to rust, hardening, adhesion, etc.

[0035] This embodiment will explain the bolt removal tool 1 through the pneumatic diaphragm actuator of the pneumatic valve and the bolts provided thereon. The diaphragm box that activates the diaphragm actuator is now referred to as the device to be removed 2, and the bolts provided thereon and to be removed are referred to as the target bolts 3. The target bolts 3 are inserted into the device to be removed 2 (such as Figure 3 As shown), its upper end and lower end both protrude from the upper end surface and lower end surface of the device 2 to be disassembled.

[0036] The bolt removal tool 1 includes a positioning mechanism 10 and a clamp handle 20, and the positioning mechanism 10 is formed with a receiving cavity 111 and a clearance space. The receiving cavity 111 is used to receive at least part of the device 2 to be disassembled, and limit it therein to maintain relative positioning during the disassembly process. The clearance space is used to receive part of the target bolt 3, and the target bolt 3 is used to prevent the device 2 to be disassembled from slipping out. The clearance space connects the receiving cavity 111 with the external environment. When the device 2 to be disassembled is in the receiving cavity 111, part of the target bolt 3 extending from the device 2 to be disassembled is located in the clearance space.

[0037] The clamp handle 20 is connected to the positioning mechanism 10 and is used to provide a disassembly driving force (power to disengage from the disassembly device 2) to the target bolt 3. The clamp handle 20 includes a lifting portion 212, which corresponds to the clearance space and is used to lift the target bolt 3, so that the target bolt 3 can be lifted by the lifting portion 212 and moved relative to the bolt hole of the device 2 to be disassembled, so as to be disengaged.

[0038] By setting the positioning mechanism 10, the device 2 to be disassembled can be confined in the accommodating cavity 111 and cannot move. By setting the lifting portion 212, the target bolt 3 can be lifted to provide a driving force thereto, thereby achieving relative movement of the target bolt 3 and the device 2 to be disassembled, thereby achieving disassembly and separation, and solving the problem of difficulty in disassembly caused by rust, hardening, adhesion, etc. between the device 2 to be disassembled and the target bolt 3 due to too long assembly time.

[0039] At the same time, the bolt removal tool 1 is small and light as a whole and easy to operate. It changes the traditional bolt removal method (such as knocking, tilting, pinning, etc.) and avoids the risk of damaging the equipment in the transmission removal method. During use, it is only necessary to place the device 2 to be disassembled in the accommodating cavity 111, and operate the clamp handle 20 so that the lifting part 212 can lift the target bolt 3. The operation is simple, and the disassembly efficiency can be improved and the disassembly time can be shortened. When it is used in environments such as nuclear power, reducing the operation time can also reduce the impact of highly corrosive, highly radioactive environments on personnel.

[0040] It should be understood that the bolt removal tool 1 can also be applied to any target bolt 3 that is inserted through the device 2 to be removed, and the upper and lower ends both protrude from the structure of the device 2 to be removed, such as two connecting plates with bolts inserted through them.

[0041] Specifically, Figure 2 As shown, the positioning mechanism 10 includes a main body 11 , and the main body 11 includes a top wall 112 , a bottom wall 113 and at least one side wall 114 . The top wall 112 , the bottom wall 113 and the at least one side wall 114 together define the accommodating cavity 111 .

[0042] Read also Figure 1 The number of the clearance spaces is two, namely the first clearance space 1121 and the second clearance space (not shown in the figure), wherein the top wall 112 defines the first clearance space 1121, and the bottom wall 113 defines the second clearance space, and the first clearance space 1121 is arranged correspondingly to the second clearance space. The second clearance space is penetrated up and down along the thickness direction of the bottom wall 113, so that the target bolt 3 can extend outward from the second clearance space. The lifting portion 212 is arranged corresponding to the second clearance space, so as to lift the end of the target bolt 3 close to the second clearance space.

[0043] In this embodiment, the main body 11 is substantially in the shape of a cube, so that the shape of the accommodating cavity 111 is also in the shape of a cube. The main body 11 has one side wall 114 disposed at the end of the top wall 112 and the bottom wall 113 close to the clamp handle 20 .

[0044] In some other optional embodiments, the number of the side walls 114 can be two, three, four, etc., which can completely cover the surroundings of the accommodating cavity 111, or can also cover part of the surroundings of the accommodating cavity 111. The shape of the main body 11 can also be set to other shapes such as a cylinder and a polygonal column. When the shape of the main body 11 is a cylinder, its side wall 114 can be arc-shaped or flat plate-shaped.

[0045] like Figure 1As shown, in some embodiments, part of the side end of the accommodating cavity 111 is connected to the outside, the first clearance space 1121 and the second clearance space are both groove-shaped, and the notches of the first clearance space 1121 and the second clearance space correspond to the positions of the side end of the accommodating cavity 111 connected to the outside on the main body 11. This facilitates the placement of the device 2 to be disassembled and the target bolt 3 from the end into the accommodating cavity 111 and the clearance space, simplifying the assembly steps of the device 2 to be disassembled and the bolt removal tool 1.

[0046] Specifically, the side end of the accommodating cavity 111 communicating with the outside world may be the side end away from the clamp handle 20. The notch of the first clearance space 1121 is located on the side of the top wall 112 away from the clamp handle 20, and the notch of the second clearance space is located on the side of the bottom wall 113 away from the clamp handle 20. This can further improve the convenience of assembling the device 2 to be disassembled and the bolt disassembly tool 1, and avoid interference such as blocking by the clamp handle 20 during the assembly process.

[0047] In this embodiment, since the side wall 114 is disposed at the ends of the top wall 112 and the bottom wall 113 close to the clamp handle 20, the three side ends of the accommodating cavity 111 where the side wall 114 is not disposed on the main body 11 are all connected to the outside. Figure 1 As shown, the first clearance space 1121 and the second clearance space are both roughly rectangular. The first clearance space 1121 penetrates the upper and lower surfaces of the top wall 112 along the thickness direction of the top wall 112, and penetrates the side end of the top wall 112 away from the clamp handle 20. The second clearance space penetrates the upper and lower surfaces of the bottom wall 113 along the thickness direction of the bottom wall 113, and penetrates the side end of the bottom wall 113 away from the clamp handle 20.

[0048] In some other optional embodiments, under the premise that the side wall 114 is only arranged at the end of the top wall 112 and the bottom wall 113 close to the clamp handle 20, the first clearance space 1121 and the second clearance space can also pass through one of the remaining two side ends of the top wall 112 and the bottom wall 113, as long as the positions where the three spaces are connected to the outside world correspond to each other, it can be ensured that the device 2 to be disassembled and the target bolt 3 can be placed therein from the end.

[0049] In some other optional embodiments, the first clearance space 1121 and / or the second clearance space can also be set as a non-through hole at the side end. When one of them is set as a hole and the other is set as a groove, when placing the device 2 to be disassembled and the target bolt, the target bolt 3 and the end of the device 2 to be disassembled corresponding to the hole-shaped space can be placed therein first, and the other end can be placed therein through the notch of the groove-shaped space that is connected to the outside world and the end of the accommodating chamber 111. When both are set as holes, the space of the accommodating chamber 111 needs to be larger than the size of the device 2 to be disassembled. During the placement process, only through the end of the accommodating chamber 111 that is connected to the outside world, one end is placed in one of the holes, and then the other end is placed therein.

[0050] In some other optional embodiments, the first clearance space 1121 may also only penetrate the lower end surface of the top wall 112, communicate with the accommodating cavity 111, and not penetrate the upper end, forming a space with a closed upper end. The size of the space defined by it only needs to ensure that the lifting portion 212 has a movement margin for the target bolt 3 when lifting the target bolt 3 through the second clearance space.

[0051] like Figure 2 and Figure 3 As shown, in some embodiments, the positioning mechanism 10 further includes at least one stopper 13, which is movably disposed on the main body 11 and is used to limit the position of the device 2 to be disassembled in the accommodating cavity 111 to prevent relative movement during the bolt disassembly process. The setting of the stopper 13 allows the size of the main body 11 to be set larger, thereby making the accommodating cavity 111 larger, and thus can adapt to different devices 2 to be disassembled, thereby improving the utilization rate of the bolt disassembly tool 1.

[0052] In this embodiment, the limiting member 13 is a screw, and the number is four. The top wall 112 is also formed with four limiting holes (not shown in the figure), and the limiting holes are threaded holes. The limiting member 13 can be movably inserted into the limiting holes by twisting. Before the target bolt 3 needs to be disassembled, it is only necessary to place the target bolt 3 and the device 2 to be disassembled in the accommodating cavity 111 and the clearance space. Furthermore, by twisting the limiting member 13, it moves into the accommodating cavity 111 until it contacts the upper end of the device 2 to be disassembled, thereby achieving the limitation of the device 2 to be disassembled.

[0053] It should be understood that in the specific implementation process, after the limit member 13 is against the device to be disassembled 2, the limit member 13 can be rotated in the opposite direction for a certain angle (so that it moves in the opposite direction for a certain distance) to create a certain gap between the limit member 13 and the device to be disassembled 2, so as to ensure the freedom of assembly and avoid the components from getting stuck with each other.

[0054] Specifically, the gap between the limiting member 13 and the device to be disassembled 2 is between 0.2 mm and 1 mm (including 0.2 mm and 1 mm).

[0055] In some other optional embodiments, the number of the limiting member 13 can also be one, two or more. The limiting member 13 can also be a plate-shaped structure, which is arranged between the top wall 112 and the device 2 to be disassembled as a stop plate, and also plays a stop role. The limiting member 13 can also be arranged on the bottom wall 113, or at least one is arranged on both the bottom wall 113 and the top wall 112.

[0056] It should be understood that when the limiting member 13 is a screw, there are at least two of them, and they need to act on the same surface of the device 2 to be disassembled (such as both are set on the top wall 112 or both are set on the bottom wall 113) to ensure the stability of the limit.

[0057] In some embodiments, the clamp handle 20 is X-shaped, including a first handle 21 and a second handle 22, the first handle 21 and the second handle 22 are both longitudinally long, cross-arranged, and rotatably connected. The lifting portion 212 belongs to the first handle 21, and the first handle 21 also includes a longitudinally long handle body 211, and the lifting portion 212 is arranged at the first end of the handle body 211. The first end of the second handle 22 is connected to the positioning mechanism 10. The second end of the handle body 211 and the second end of the second handle 22 are for operation, and the distance between the lifting portion 212 and the main body 11 is changed by controlling the distance between the second end of the handle body 211 and the second end of the second handle 22, thereby achieving the lifting of the target bolt 3. By setting the clamp handle 20 as an X-shaped structure, the bolt removal tool 1 can be made into a clamp-shaped structure as a whole, and the target bolt 3 can be effectively removed by using the lever principle.

[0058] like Figure 1 As shown, in this embodiment, a through-hole (not shown) is formed on the second handle 22, and the first handle 21 is inserted into the hole, thereby realizing an X-shaped intersection of the two. At the same time, by inserting a pin at the position of the first handle 21 and the second handle 22 corresponding to the hole, a rotatable connection between the two is realized.

[0059] In some other optional embodiments, the second handle 22 may not be provided with a clearance hole. By placing the first handle 21 and the second handle 22 in close proximity and passing a pin through the middle, a rotatable connection between the two can be achieved, and the two can be cross-arranged in an X shape.

[0060] In some other optional embodiments, the second handle 22 and the first handle 21 may be rotatably connected by providing a hinge or the like.

[0061] Specifically, Figure 3 As shown, the positioning mechanism 10 also includes a connecting portion 12, which is arranged on the main body 11, and the first end of the second end portion 22 is rotatably connected to the connecting portion 12. The upper end surface of the lifting portion 212 is parallel to the bottom wall 113, and its upper end surface is longitudinally arranged, and the axis of the longitudinal upper end surface is in the same plane as the axis of the handle body 211. Such an arrangement can compensate for the inclination caused by the lifting portion 212 lifting upward during the bolt removal process through the rotation of the second handle 22 and the connecting portion 12, ensure the verticality of the target bolt 3, so that the lifting portion 212 is always parallel to the bottom wall 113 during the upward lifting process, that is, perpendicular to the target bolt 3, and is arranged in a close fit with the lower end surface of the target bolt 3, perpendicular to the moving direction of the target bolt 3, to avoid force deflection affecting the removal efficiency or damaging the bolt.

[0062] At the same time, due to the relative rotation between the first handle 21 and the second handle 22, and the relative rotation between the second handle 22 and the connecting portion 12, the horizontal angle of the lifting portion 212 will also be displaced forward and backward during the lifting process, and the displacement direction of the horizontal angle is on the same horizontal plane as the axis of the handle body 211 (in Figure 2 and Figure 3 The angle is horizontal left and right movement), so the lifting part 212 will produce relative movement with the lower end of the target bolt 3. The upper end surface of the lifting part 212 is set to a longitudinal structure, and its axis is made to be on the same horizontal plane with the axis of the handle body 211. It can avoid that the target bolt 3 escapes from the range of the upper end surface of the lifting part 212 during the relative movement of the lifting part 212 and the target bolt 3.

[0063] In this embodiment, the lifting portion 212 is rectangular, and the lower end of the target bolt 3 protrudes from the second clearance space. The width of the lifting portion 212 is smaller than the width of the second clearance space, so that the lifting portion 212 can enter the second clearance space during the lifting process to increase the lifting degree.

[0064] In some other optional embodiments, the lifting portion 212 can also be set to other shapes such as elliptical, irregular, etc., as long as its upper end surface is flat and longitudinally long.

[0065] In some other optional embodiments, the pliers handle 20 can also be configured as a wrench-like structure, with the movable head serving as the lifting portion 212 to lift and disassemble the target bolt 3. The immovable head is connected to the main body 11, and in this case, the two can be fixed to each other without rotating. By operating the adjusting member of the wrench structure, the distance between the two ends is changed, thereby achieving the lifting effect of the lifting portion 212.

[0066] It should be understood that, under the premise that the pliers handle 20 is a wrench-like structure, since the movement of the lifting part 212 only exists in the height angle and there is no horizontal angle movement, the upper end surface of the lifting part 212 has no plane and longitudinal length restrictions, and it can be a convex hemispherical structure or other irregular structures.

[0067] For example Figure 3 As shown, in some embodiments, the connecting portion 12 includes a connecting portion body 121 and at least one limiting component, and the first end of the second handle 22 is rotatably connected to the connecting portion body 121. The limiting component is arranged on the connecting portion body 121, and is used to limit the rotation angle of the second handle 22, so as to avoid the lifting portion 212 from moving too far in horizontal angle due to the rotation angle being too large, so that the target bolt 3 escapes from the range of the upper end surface of the lifting portion 212.

[0068] In this embodiment, the connecting part body 121 is formed with a clearance groove, the first end of the second handle 22 is arranged in the clearance groove, and a pin is provided through the connecting part body 121 and the first end of the second handle 22, so as to realize a rotatable connection between the two. There are two limiting components, namely the first limiting component 122 and the second limiting component 123, which are both plate-shaped and are respectively arranged on the upper and lower sides of the first end of the second handle 22, so as to realize the limitation of its rotation angle.

[0069] In some other optional embodiments, the first limiting component 122 and / or the second limiting component 123 may also be provided in other shapes such as a rod shape, a circular protrusion, etc.

[0070] It should be understood that the setting position and structure of the first limiting component 122 and the second limiting component 123 only need to ensure that during the disassembly process of the target bolt 3, the rotation angle of the second handle 22 will not cause the lifting part 212 to move at a horizontal angle, causing the target bolt 3 to escape from the coverage of its upper end surface.

[0071] In some other optional embodiments, only the first limiting component 122 located on the upper side of the first end of the second handle 22 may be provided to ensure that the lifting portion 212 will not be separated from the target bolt 3 during the lifting process (in the figure, to ensure that the lifting portion 212 will not move to the right to be separated from the target bolt 3).

[0072] In some embodiments, when the axis of the second handle 22 is in the horizontal direction, it reaches the limiting position of the first limiting component 122. The second handle 22 is rotated 45° downward from the limiting position of the first limiting component 122 to reach the limiting position of the second limiting component 123.

[0073] In some other optional embodiments, the rotational connection between the first end of the second handle 22 and the connecting portion body 121 may also be achieved by providing a hinge or a hinge.

[0074] In some embodiments, the parts of the limit member 13 and / or the main body 11 and / or the lifting portion 212 that are in contact with the target bolt 3 and the equipment to be disassembled 2 are all provided with a buffer layer (not shown in the figure) to avoid damage to the target bolt 3 and the equipment to be disassembled 2 during operation.

[0075] It should be understood that the buffer layer can be a layered structure with a certain elasticity, and can be applied to the surface of each component by coating, or can be attached to the surface of each component by pasting.

[0076] In this embodiment, a buffer layer is disposed on the lower end of the stopper 13 , the upper surface of the bottom wall 113 of the main body 11 , and the upper surface of the lifting portion 212 .

[0077] In some embodiments, the second end of the handle body 211 and the second end of the second handle portion 22 may also be wrapped with a flexible material to improve the comfort of the operator during use.

[0078] In this embodiment, the bolt removal tool 1 is made entirely of stainless steel.

[0079] In some other optional embodiments, other lightweight metal materials may be selected to reduce the overall weight while ensuring mechanical strength.

[0080] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A bolt removal tool, characterized in that: include: A positioning mechanism (10), the positioning mechanism (10) is formed with a receiving cavity (111) for receiving at least part of the equipment (2) to be disassembled, and a clearance space for receiving part of the target bolts (3), the clearance space being connected with the receiving cavity (111) and the external environment; as well as A clamp handle (20) is used to provide a disassembly driving force to the target bolt (3), the clamp handle (20) is connected to the positioning mechanism (10), and comprises a lifting portion (212) for lifting the target bolt (3), and the lifting portion (212) corresponds to the clearance space.

2. The bolt removal tool according to claim 1, characterized in that: The positioning mechanism (10) comprises a main body (11), the main body (11) comprises a top wall (112), a bottom wall (113) and at least one side wall (114), the top wall (112), the bottom wall (113) and the at least one side wall (114) together define the accommodating cavity (111); The clearance space comprises a first clearance space (1121) and a second clearance space, the bottom wall (113) defines the second clearance space, the second clearance space penetrates along the thickness direction of the bottom wall (113), the top lifting portion (212) corresponds to the second clearance space, and the upper end surface of the top lifting portion (212) is parallel to the bottom wall (113); the top wall (112) defines the first clearance space (1121), and the first clearance space (1121) corresponds to the second clearance space.

3. The bolt removal tool according to claim 2, characterized in that: Part of the side end of the accommodating cavity (111) is connected to the outside world, the first clearance space (1121) and the second clearance space are both groove-shaped, and the notches of the first clearance space (1121) and the second clearance space and the side end of the accommodating cavity (111) connected to the outside world correspond to each other in position on the main body (11).

4. The bolt removal tool according to claim 3, characterized in that: The side end of the accommodating cavity (111) communicating with the outside world is away from the clamp handle (20), the notch of the first clearance space (1121) is located on the side of the top wall (112) away from the clamp handle (20), and the notch of the second clearance space is located on the side of the bottom wall (113) away from the clamp handle (20).

5. The bolt removal tool according to claim 2, characterized in that: The positioning mechanism (10) further comprises at least one limiting member (13) for limiting the device (2) to be disassembled in the accommodating cavity (111); the limiting member (13) is movably arranged on the main body (11).

6. The bolt removal tool according to claim 5, characterized in that: At least two limiting holes are formed on the top wall (112) or the bottom wall (113), and the limiting members (13) are screws, at least two in number, which are movably inserted into the limiting holes.

7. The bolt removal tool according to claim 1, characterized in that: The pliers handle (20) is X-shaped, and includes a first handle portion (21) and a second handle portion (22) arranged crosswise, wherein the first handle portion (21) and the second handle portion (22) are rotatably connected, and the first handle portion (21) includes a longitudinally elongated handle body (211) and the lifting portion (212), wherein the lifting portion (212) is arranged at the first end of the handle body (211), and the first end of the second handle portion (22) is connected to the positioning mechanism (10).

8. The bolt removal tool according to claim 7, characterized in that: The positioning mechanism (10) comprises a main body (11) and a connecting part (12), wherein the main body (11) defines the accommodating cavity (111) and the clearance space, the connecting part (12) is arranged on the main body (11), and the first end of the second handle (22) is rotatably connected to the connecting part (12); The upper end surface of the lifting portion (212) is parallel to the lower end surface of the main body (11), and the upper end surface is arranged in a longitudinal direction, and its axis is located on the same plane as the axis of the handle body (211).

9. The bolt removal tool according to claim 8, characterized in that: The connecting part (12) comprises a connecting part body (121) and at least one limiting component for limiting the rotation angle of the second handle part (22); the second handle part (22) is rotatably connected to the connecting part body (121); and the limiting component is arranged on the connecting part body (121).

10. The bolt removal tool according to any one of claims 1 to 9, characterized in that: A buffer layer is provided on the surface of the lifting portion (212) and / or the main body (11) that contacts the equipment to be disassembled (2) and the target bolt (3).

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