A special-purpose disassembly tool for disassembling a threaded workpiece

Abstract

The utility model discloses a special dismounting tool for dismounting and mounting threaded workpiece belongs to dismounting and mounting equipment technical field, is used to dismount and mount threaded workpiece, and the knob is provided with a plurality of grooves along the annular interval arrangement, and this special dismounting tool includes the main stem body and sets up the function part at its end, and the function part includes the at least two convex parts of setting up in the one end of main stem body, and each convex part can be embedded in the at least partial groove of threaded workpiece, and the one end of main stem body away from function part forms the force part. The special dismounting tool of the utility model can realize the special dismounting of threaded workpiece, and still can realize the quick alignment of convex part and groove through the cone structure in convex part, and the extension rod and magnet are correspondingly set up to adapt the inner cavity environment of deeper scale, and the force part can also be adapted with the clamping mechanism of electric drill to realize the application in various scenes, and has good application value.

Description

Technical Field

[0001] This utility model belongs to the field of disassembly and assembly equipment technology, specifically relating to a special disassembly and assembly tool for disassembling and assembling threaded workpieces. Background Technology

[0002] Threaded workpieces are common components used in industrial production and maintenance, serving functions such as fastening and locking connections, and are widely used in industries such as automotive, aviation, aerospace, shipbuilding, and nuclear power. Therefore, many industry standards have been established for threaded workpieces in different application areas. These standards specify requirements for thread pitch, pitch diameter, and other parameters, while the knobs come in various head types, including cylindrical, flat, round, and hexagonal heads, and can be tightened and loosened using common Phillips head screwdrivers, flathead screwdrivers, open-end wrenches, or Allen wrenches.

[0003] In practical applications, there are also some special threaded workpieces whose knob surfaces have multiple grooves, such as... Figure 5 As shown, its grooves are two symmetrically arranged, rather than the common straight, cross, or hexagonal shapes. The two grooves serve as locking points to facilitate the assembly and disassembly of the threaded workpiece.

[0004] Currently, there is a lack of dedicated disassembly and assembly tools for this threaded workpiece, so there is an urgent need for a matching disassembly and assembly tool to carry out the disassembly and assembly work. Utility Model Content

[0005] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a special disassembly and assembly tool for disassembling and assembling threaded workpieces, which enables the disassembly and assembly of the threaded workpieces.

[0006] To achieve the above objectives, this utility model provides a special disassembly and assembly tool for disassembling and assembling threaded workpieces. The tool is used to disassemble and assemble threaded workpieces, wherein the knob of the threaded workpiece has multiple grooves spaced apart in a circumferential direction. The tool is characterized in that it includes a main body and a functional part disposed at one end of the main body. The functional part includes at least two protrusions disposed on one end of the main rod body. The circumferential arrangement of each protrusion is the same as the circumferential arrangement of each groove, so that each protrusion can be simultaneously embedded in at least a portion of the groove of the threaded workpiece. The main rod has a first force-applying part formed at the end away from the functional part.

[0007] As a further improvement of this utility model, the cross-section of the protrusion has the same shape as the cross-section of the groove; And / or, The outer wall surface of the protrusion that is away from the axis of the main rod is an arc surface.

[0008] As a further improvement of this utility model, the functional part includes two protrusions, which are spaced 180° apart about the axis of the main rod.

[0009] As a further improvement of this utility model, the protruding length of the protrusion is in the range of 0.15cm to 0.25cm; And / or, The thickness of the protrusion in the radial direction of the main rod ranges from 0.09cm to 0.15cm.

[0010] As a further improvement of this utility model, the interior of the main rod is hollow, or the main rod has through holes penetrating both ends of its surface. And / or, The main rod body is integrally formed with the functional part, and / or the main rod body is integrally formed with the first force-applying part.

[0011] As a further improvement of this utility model, a tapered portion is formed at the end of the protrusion away from the main rod body, and the outer diameter of the tapered portion gradually decreases from the end closest to the main rod body to the other end; And / or, A magnet is provided at the end of the main rod away from the first force-applying part, so that the main rod can magnetically fix the threaded workpieces together during use.

[0012] As a further improvement of this utility model, the main rod body is detachably connected to the first force-applying part, and an extension rod is provided between the main rod body and the first force-applying part, the extension rod being detachably connected to the main rod body and the first force-applying part respectively; or, A connecting part is provided at the end of the first force-applying part away from the main rod body, and the connecting part is detachably connected to the extension rod. A second force-applying part is formed at the end of the extension rod away from the first force-applying part.

[0013] As a further improvement of this utility model, the length of the extension rod is adjustable; or, The extension rod is available in a variety of lengths. or, There are multiple extension rods, and each extension rod is detachably connected to the others.

[0014] As a further improvement of this utility model, a mating part is formed at the end of the first force-applying part away from the main rod body, and the mating part can be clamped and matched with the clamping mechanism of the electric drill. And / or, The outer periphery of the first force-applying part is provided with an assembly hole, and a connecting rod is provided corresponding to the assembly hole so that the connecting rod can be installed in the assembly hole.

[0015] As a further improvement of this utility model, the outer peripheral wall of the first force-applying part is provided with protrusions arranged in an array. And / or, The end of the first force-applying part away from the main rod is configured as a "T" or "L" shape.

[0016] In summary, the technical solutions conceived by this utility model have the following beneficial effects compared with the prior art: (1) The special disassembly and assembly tool for disassembling and assembling threaded workpieces of this utility model matches the functional part in the special disassembly and assembly tool with the groove in the threaded workpiece. After the functional part is embedded in the groove, it can drive the threaded workpiece to rotate under the rotation of the main rod body, thereby realizing the special disassembly and assembly of the threaded workpiece. In particular, when the two grooves on the knob of the threaded workpiece are two that are set at a distance of 180° about its axis, the special disassembly and assembly tool is provided with two protrusions accordingly. (2) The special disassembly and assembly tool for disassembling and assembling threaded workpieces of this utility model optimizes the dimensions of the protrusion structure to ensure that it can be accurately inserted into the groove and ensures its normal operation on the threaded workpiece. The end of the protrusion away from the main rod body forms a cone to guide the rapid alignment of the protrusion and the groove. (3) The special disassembly and assembly tool for disassembling and assembling threaded workpieces of this utility model has through holes on the main rod body that penetrate both ends of the main rod body to form a pipe structure, and the main rod body and the functional part can be set as an integral molding. (4) The special disassembly and assembly tool for disassembling and assembling threaded workpieces of this utility model can adjust the overall length of the special disassembly and assembly tool by configuring an extension rod, so that the disassembly and assembly tool can be adapted to working environments with a certain depth. At the same time, the length of the extension rod can be adjusted, selected for adaptation or assembly, and is marked, which can facilitate the operator to select the length and understand the location and depth of the functional part. (5) The special disassembly and assembly tool for disassembling and assembling threaded workpieces of this utility model achieves magnetic attraction and fixation between the main rod body and the threaded workpiece by opening a blind hole on the end face of the main rod body and setting a magnet in the blind hole, and then the disassembly and assembly process can be carried out in the inner cavity with a certain depth. (6) The special disassembly and assembly tool for disassembling and assembling threaded workpieces of this utility model has a variety of structures in the force application part to facilitate the operator to drive the main rod to rotate. In particular, a positioning groove can be opened on the outer peripheral wall of the force application part or the cross-sectional shape of the force application part in the first direction can be set as a polygon so that the force application part can be connected to the electric drill handle, so that the special disassembly and assembly tool can be used as a drill bit to facilitate the operation of personnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the special disassembly and assembly tool for disassembling and assembling threaded workpieces in an embodiment of this utility model; Figure 2 This is a front view of the special disassembly and assembly tool for disassembling and assembling threaded workpieces in this embodiment of the present invention; Figure 3 This is a side view of a special disassembly and assembly tool for disassembling and assembling threaded workpieces in an embodiment of this utility model; Figure 4 This is a top view of the special disassembly and assembly tool for disassembling and assembling threaded workpieces in an embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of the threaded workpiece in an embodiment of this utility model; In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. protrusion; 2. main rod; 3. force-applying rod; 4. mounting hole; 5. threaded rod; 6. knob; 7. groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] Example: In a preferred embodiment of this utility model, a special disassembly and assembly tool for disassembling and assembling threaded workpieces is provided, such as... Figures 1-5 As shown in the diagram. The threaded workpiece includes a threaded rod 5 and a knob 6 mounted on the threaded rod 5, as shown in the diagram. Figure 5 As shown, the knob 6 has multiple grooves 7, which are arranged circumferentially. The outer wall of the groove 7 is flush with the outer wall of the knob 6. Correspondingly, the special disassembly and assembly tool includes a functional part and a main rod 2 arranged sequentially along the first direction. The functional part includes a protrusion 1 on the first end of the main rod 2. There are at least two protrusions 1. The circumferential arrangement between the protrusions 1 is the same as the circumferential arrangement between the grooves. Each protrusion 1 can be simultaneously embedded in at least a portion of the grooves 7 on the threaded workpiece. The second end of the main rod 2 (i.e., the end of the main rod 2 away from its functional part) forms a first force-applying part, which allows the operator to rotate the main rod 2 through the first force-applying part, and then rotate the threaded workpiece through the functional part to achieve the disassembly and assembly of the special threaded workpiece.

[0024] To further explain, the axial direction of the main rod 2 is taken as the first direction, and the axis is the centerline of the main rod.

[0025] In one embodiment, one end of the main rod 2 is provided with a plurality of protrusions 1. After the protrusions 1 are inserted into the corresponding grooves 7, the special disassembly and assembly tools can be connected with the threaded workpiece, so that the threaded workpiece can be turned out or turned in after rotating the main rod 2.

[0026] Furthermore, the dimensions of the protrusion 1 correspond to the dimensions of the groove 7, so that the protrusion 1 can be embedded in the groove 7, or at least there is a certain circumferential gap between the protrusion 1 and the inner peripheral wall of the groove 7, that is, the thickness of the protrusion 1 in the circumferential direction can be less than the distance between the two inner side walls of the groove 7 in the circumferential direction.

[0027] More preferably, the cross-sectional shape of the protrusion 1 is the same as the cross-sectional shape of the groove 7, so that when the protrusion 1 is embedded in the groove 7, it can fit against the outer peripheral wall of the groove 1, so that when it rotates, it can drive the threaded workpiece to rotate.

[0028] Furthermore, the threaded workpiece can be placed in the inner cavity of the equipment, and the inner circumferential wall of the inner cavity is usually in contact with the knob 6 to achieve matching between the inner cavity and the knob 6. Therefore, in order to allow the special disassembly and assembly tool to extend into the inner cavity, the main rod 2 is set as a round rod. In order to facilitate the alignment of the special disassembly and assembly tool with the knob 6, the outer diameter of the main rod 2 can be the same as the outer diameter of the knob 6.

[0029] More preferably, by fitting the outer peripheral wall of the main rod 2 with the inner peripheral wall of the inner cavity, the main rod 2 can reciprocate in the inner cavity along the first direction, so that the main rod 2 can directly drive the functional part to move in the first direction, thereby driving the functional part to abut against the threaded workpiece, improving the alignment efficiency between the functional part and the groove 7 of the threaded workpiece, and thus improving the disassembly and assembly efficiency.

[0030] Correspondingly, the straight-line distance between the outer wall surface of the protrusion 1, which is radially away from the axis, and the axis must not be greater than the distance between the outer peripheral wall surface of the main rod 2 and the axis. Preferably, the outer wall surface of the protrusion 1 is flush with the outer peripheral wall surface of the main rod 2.

[0031] In another embodiment, the main rod body has a partially hollow interior to reduce its weight. This can be achieved by forming a cavity inside the main rod body 2 or by providing a blind hole on at least one end face. Alternatively, the main rod body 2 can be a tube with through holes extending through both ends, and a protrusion 1 is provided at its first end. Using a tube structure reduces the weight of the main rod body 2, achieving a lightweight design.

[0032] More preferably, the protrusion 1 is integrally formed with the tube body. Multiple protrusions 1 can be formed on the first end of the tube body by turning, or the combined structure of "main rod body 2" + "functional part" can be obtained by casting.

[0033] Furthermore, when the pipe is machined using a turning process, the two radially separated side walls of the protrusion 1 are flush with the inner and outer side walls of the pipe body, so that the radial thickness of the protrusion 1 is the same as the thickness of the pipe body. Based on this, when the pipe body is a circular pipe structure, each protrusion 1 is an arc-shaped plate structure, and its arc-shaped groove is set inward, so the arc-shaped surface of the protrusion 1 does not fit against the inner wall surface of the groove 7.

[0034] Furthermore, a cone is formed at the end of the protrusion away from the main rod. The outer diameter of the cone gradually decreases from the end closest to the main rod to the other end, and then the tip of the cone guides the protrusion 1 into the groove 7.

[0035] More preferably, the cone has at least two wedge-shaped surfaces arranged in the circumferential direction, so that the cone can smoothly guide the protrusion 1 into the groove 7.

[0036] Furthermore, the first end face of the main rod 2 can also be fitted with the surface of the knob 6 to achieve matching between the knob 6 and the main rod 2, and the length of the protrusion 1 in the first direction is not greater than the depth of the groove 7 in the first direction, so that when the protrusion 1 is inserted into the groove 7, it will not hinder the first end face of the main rod 2 from fitting with the surface of the knob 6.

[0037] Furthermore, in order to achieve the fastening between the threaded workpiece and the disassembly / assembly tool during the disassembly / assembly of the threaded workpiece, the protrusion 1 can be set as a magnet, or an installation groove (i.e., blind hole structure) can be opened on the first end face of the main rod 2, and a magnet can be set in the installation groove to achieve magnetic attraction fixation between the threaded workpiece and the main rod 2.

[0038] Furthermore, when the main rod 2 is a solid rod structure, the mounting groove can be opened at the center of the first end face of the main rod 2. Alternatively, when the main rod 2 is a tube structure with a through hole, the mounting groove is opened between two adjacent protrusions 1 in the circumferential direction, so that magnets can also be installed when the main rod 2 is a tube structure, or magnets can be embedded in the end of the tube.

[0039] More preferably, by installing the magnet at the end of the main rod 2, the protrusion 1 can be made of a high-strength metal material.

[0040] Furthermore, when dealing with a deep inner cavity, an extension rod can be provided on the main rod body 2 to increase the usable depth of the functional part. The extension rod is located at the second end of the main rod body 2 and is detachably connected to the main rod body 2. Correspondingly, the first force-applying part and the main rod body 2 can be detachably connected or integrally formed.

[0041] In one embodiment, a blind hole is provided at the end of the main rod 2 away from the functional part, and a first connector is provided at one end of the extension rod. The first connector matches and connects with the blind hole, and a first connecting hole is provided on the side wall of the connector. A second connecting hole communicating with the blind hole is provided on the side wall of the main rod, and a pin is provided between the main rod 2 and the first connector. The pin passes through the first connecting hole and the second connecting hole respectively, thereby fixing the main rod 2 and the extension rod together.

[0042] Furthermore, the first connecting hole is a threaded hole, and the second connecting hole is a stepped hole, with its large diameter end set away from the blind hole. Correspondingly, the outer peripheral wall of the pin is provided with a threaded structure. Thus, when the first connecting hole and the second connecting hole are aligned, the pin can be threadedly connected to the first connecting hole, and the head of the pin can be accommodated in the large diameter end of the second connecting hole.

[0043] In one embodiment, the first force-applying part and the main rod body 2 are integrally formed. The first force-applying part has an assembly hole so that the connecting rod can pass through. Correspondingly, the blind hole provided at the end of the force-applying part away from the main rod body 2 is actually a connecting part. Through the matching and connection of the blind hole and the connecting body, the detachable connection between the extension rod and the first force-applying part can be realized.

[0044] Furthermore, a second force-applying part is provided at the tail end of the extension rod (i.e. the end of the extension rod away from the main rod body 2), so that after one end of the extension rod is connected to the first force-applying part, it can be used as the force-applying part of the special disassembly and assembly tool.

[0045] In another embodiment, the main rod 2 and the first force-applying part are detachably connected. The end of the first force-applying part near the second end is provided with a second connector, which can also be matched and connected with the second end of the main rod. When it is necessary to extend the main rod 2, the first force-applying part can be disassembled. After the extension rod is connected to the main rod 2, the first force-applying part can be connected to the tail end of the extension rod, thereby setting the first force-applying part at the tail end of the extension rod.

[0046] More preferably, there can be multiple extension rods, each detachably connected, allowing them to be matched and assembled to the desired length. Alternatively, the extension rods can be available in various lengths and specifications, or they can be telescopic rods to make their length adjustable. Simultaneously, multiple markings are provided on the outer peripheral wall of the extension rods at equal intervals along a first direction to facilitate operators in confirming the location and depth of the functional components.

[0047] In one embodiment, the knob 6 has two grooves 7, which are symmetrically arranged about the axis of the threaded workpiece. The outer wall of the groove 7 is flush with the outer wall of the knob 6. Correspondingly, there are two special disassembly and assembly tool protrusions 1, which are symmetrically arranged about the axis of the main rod 2. The two protrusions 1 match the two grooves 7 one by one, and the two protrusions 1 can be respectively embedded in the two grooves 7. After the two protrusions 1 are inserted into the two grooves 7, the special disassembly and assembly tool can be connected with the threaded workpiece, so that the threaded workpiece can be turned out or turned in after rotating the main rod 2.

[0048] Furthermore, in one embodiment, the first force-applying part includes a force-applying rod 3, one end of which is connected to the second end of the main rod 2. The operator can apply force to the force-applying rod 3 to rotate the main rod 2, thereby rotating the threaded workpiece through the functional part. Preferably, the outer diameter of the force-applying rod 3 is larger than the outer diameter of the main rod 2, so that it is entirely located outside the inner cavity and does not extend into it.

[0049] More preferably, the force-applying rod 3 is a solid rod, and its connection with the main rod 2 is by welding.

[0050] In a preferred embodiment, the length of the force-applying rod 3 is between 4cm and 6cm, preferably 4.9cm, the length of the main rod 2 is between 6cm and 9cm, preferably 7.2cm, the height of the protrusion 1 in the first direction is between 0.15cm and 0.25cm, preferably 0.2cm, and the overall length of the force-applying rod 3, the main rod 2, and the functional part in the first direction is preferably 12.3cm.

[0051] Furthermore, the outer radius of the force-applying rod 3 is 0.6 cm, while the outer radius of the main rod 2 is between 0.4 cm and 0.6 cm, preferably 0.45 cm, and its inner radius is between 0.3 cm and 0.5 cm, preferably 0.35 cm. Further, the radial thickness of the protrusion 1 is between 0.09 cm and 0.15 cm, preferably 0.1 cm, and the width of the protrusion 1 in the front view is 0.11 cm.

[0052] Furthermore, the force-applying rod 3 can be configured with various structures to facilitate the rotation of the main rod 2 by the operator driving the force-applying rod 3.

[0053] In one embodiment, the force-applying rod 3 has an assembly hole 4 so that the connecting rod is disposed therein, and the exposed part of the connecting rod is the force-bearing part. Further, the assembly hole 4 can be configured as a blind hole or a through hole.

[0054] More preferably, the inner circumferential wall of the mounting hole 4 is provided with an internal thread structure, and the middle part of the connecting rod is also provided with an external thread structure, so as to fix the connecting rod and the force-applying rod 3. Rubber pads can be provided at both ends of the connecting rod to increase the friction coefficient at both ends of the connecting rod. Preferably, the mounting hole 4 is located at the end of the force-applying rod 3 away from the main rod body 2, and there is a 0.6 cm gap between the mounting hole 4 and the end face of the force-applying rod 3 away from the main rod body 2.

[0055] In another embodiment, the outer peripheral wall of the force-applying rod 3 is provided with protrusions arranged in an array or a rubber ring is fitted on the outer peripheral wall of the force-applying rod 3 to increase the friction coefficient of the surface of the force-applying rod 3, making it easier for workers to hold and operate.

[0056] Furthermore, the force-applying rod 3 is configured as a "T"-shaped rod and an "L"-shaped rod, so that the end of the force-applying part away from the main rod body 2 is configured as a "T"-shaped or "L"-shaped rod to facilitate the application of force by personnel, and a protrusion or rubber ring is provided at the position of the force-applying rod 3.

[0057] In one embodiment, the tail end of the first force-applying part is formed with a mating part, the cross section of which in the first direction can be set as a polygon, such as a square, pentagon or hexagon, so that the clamping mechanism in the electric drill handle clamps the mating part, thereby realizing the tight connection between the electric drill handle and the special disassembly and assembly tool, so that the special disassembly and assembly tool can be used as a drill bit.

[0058] More preferably, the outer diameter of the mating part is larger than the outer diameter of the main rod 2, so as to facilitate the gripping of the electric drill handle.

[0059] Furthermore, a positioning groove is provided on the outer peripheral wall of the mating part. The positioning groove can be set as an annular groove, or a blind hole opened on the side wall, or a through hole penetrating both sides of the wall, so as to match the positioning component in the electric drill handle to achieve a better fastening connection.

[0060] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special tool for disassembling and assembling threaded workpieces, wherein the knob of the threaded workpiece has a plurality of grooves spaced circumferentially, characterized in that... This specialized disassembly and assembly tool includes a main shaft and a functional part located at one end of the main shaft; The functional part includes at least two protrusions disposed on one end of the main rod body. The circumferential arrangement of each protrusion is the same as the circumferential arrangement of each groove, so that each protrusion can be simultaneously embedded in at least a portion of the groove of the threaded workpiece. The main rod has a first force-applying part formed at the end away from the functional part.

2. The special disassembly and assembly tool for disassembling and assembling threaded workpieces according to claim 1, wherein, The cross-sectional shape of the protrusion is the same as that of the groove. And / or, The outer wall surface of the protrusion that is away from the axis of the main rod is an arc surface.

3. The special disassembly and assembly tool for disassembling and assembling threaded workpieces according to claim 1 or 2, wherein, The functional part includes two protrusions, which are spaced 180° apart about the axis of the main rod.

4. The special disassembly and assembly tool for disassembling and assembling threaded workpieces according to claim 1 or 2, wherein, The protruding length of the protrusion ranges from 0.15cm to 0.25cm; And / or, The thickness of the protrusion in the radial direction of the main rod ranges from 0.09cm to 0.15cm.

5. The special disassembly and assembly tool for disassembling and assembling threaded workpieces according to claim 1 or 2, wherein, The main rod body is hollow inside, or the main rod body has through holes that penetrate both ends of it; And / or, The main rod body is integrally formed with the functional part, and / or the main rod body is integrally formed with the first force-applying part.

6. The special disassembly and assembly tool for disassembling and assembling threaded workpieces according to claim 1 or 2, wherein, The protrusion is formed into a tapered portion at the end away from the main rod, and the outer diameter of the tapered portion gradually decreases from the end closest to the main rod to the other end. And / or, A magnet is provided at the end of the main rod away from the first force-applying part, so that the main rod can magnetically fix the threaded workpieces together during use.

7. The special disassembly and assembly tool for disassembling and assembling threaded workpieces according to claim 1 or 2, wherein, The main rod body is detachably connected to the first force-applying part, and an extension rod is provided between the main rod body and the first force-applying part. The extension rod is detachably connected to the main rod body and the first force-applying part respectively. or, A connecting part is provided at the end of the first force-applying part away from the main rod body, and the connecting part is detachably connected to the extension rod. A second force-applying part is formed at the end of the extension rod away from the first force-applying part.

8. The special disassembly and assembly tool for disassembling and assembling threaded workpieces according to claim 7, wherein, The length of the extension rod is adjustable; or, The extension rod is available in a variety of lengths. or, There are multiple extension rods, and each extension rod is detachably connected to the others.

9. The special disassembly and assembly tool for disassembling and assembling threaded workpieces according to claim 1 or 2, wherein, The first force-applying part has a mating part at the end away from the main rod, and the mating part can be clamped and matched with the clamping mechanism of the electric drill; And / or, The outer periphery of the first force-applying part is provided with an assembly hole, and a connecting rod is provided corresponding to the assembly hole so that the connecting rod can be installed in the assembly hole.

10. The special disassembly and assembly tool for disassembling and assembling threaded workpieces according to claim 1 or 2, wherein, The outer peripheral wall of the first force-applying part is provided with protrusions arranged in an array; And / or, The end of the first force-applying part away from the main rod is configured as a "T" or "L" shape.

Images