Threaded fastener disassembling and assembling mechanism and handheld tool

Abstract

The utility model provides a threaded fastener dismounting and mounting mechanism and a handheld tool, and relates to the technical field of threaded fastener dismounting and mounting. The threaded fastener dismounting and mounting mechanism comprises a shell, a driving part, a transmission part and a dismounting and mounting part, the driving part, the transmission part and the dismounting and mounting part are in transmission connection in sequence, and a threaded fastener to be dismounted and mounted can be arranged in the dismounting and mounting part; the shell sleeves the driving part, the transmission part and the disassembly and assembly part in the length direction, and the height and the width of the shell are gradually reduced in the arrangement direction from the driving part to the disassembly and assembly part; the driving part can drive the transmission part to rotate so as to drive the disassembly and assembly part to rotate, and then the threaded fastener arranged in the disassembly and assembly part is driven to rotate. The thickness of the dismounting and mounting part of the threaded fastener dismounting and mounting mechanism is small, rotation is not needed in the dismounting and mounting process, threaded fasteners located in the space with narrow vertical spacing or left-right spacing can be dismounted and mounted, and the use flexibility and the dismounting and mounting efficiency of the threaded fasteners are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of threaded fastener disassembly and assembly, and in particular to a threaded fastener disassembly and assembly mechanism and a handheld tool. Background Technology

[0002] In the field of mechanical manufacturing, threaded fasteners are indispensable mechanical parts. Threaded fasteners are tools that use the physical and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually fasten objects and mechanical parts.

[0003] In the prior art, the front end of the wrench is usually clamped on the threaded fastener, and the threaded fastener is rotated by turning the wrench in a clockwise or counterclockwise direction to achieve installation or removal of the threaded fastener. However, in order to have sufficient strength, the front end of the wrench is usually thicker. Therefore, in a space with a relatively narrow vertical spacing or left-right spacing, it is difficult for the wrench to be inserted into the position for disassembly of the threaded fastener, and it is also not convenient to rotate, and the flexibility is low, which reduces the efficiency of disassembly of the threaded fastener. Contents of utility model

[0004] The purpose of the utility model is to provide a threaded fastener disassembly and assembly mechanism and a handheld tool, which can disassemble and assemble threaded fasteners located in a space with a relatively narrow vertical spacing or left-right spacing, thereby improving the flexibility of use and the efficiency of threaded fastener disassembly and assembly.

[0005] The embodiment of the utility model is implemented as follows:

[0006] One aspect of the utility model provides a threaded fastener disassembly and assembly mechanism, comprising a housing, a driving part, a transmission part and a disassembly and assembly part which are sequentially connected in transmission, and the threaded fastener to be disassembled and assembled can be arranged in the disassembly and assembly part; the housing is sleeved on the outside of the driving part, the transmission part and the disassembly and assembly part along the length direction, and the height and width of the housing gradually decrease along the setting direction from the driving part to the disassembly and assembly part; the driving part can drive the transmission part to rotate, so as to drive the disassembly and assembly part to rotate, and then drive the threaded fastener arranged in the disassembly and assembly part to rotate.

[0007] Optionally, the transmission part includes at least one transmission gear, and the outer periphery of the disassembly part is provided with a gear ring meshing with the transmission part; one end of the disassembly part is provided with a slot, and the slot is used to clamp the threaded fastener to be disassembled.

[0008] Optionally, the disassembly and assembly portion is arranged at the edge of the housing, and an opening is provided on the side wall of the disassembly and assembly portion, and the opening is connected to the slot, so that the threaded fastener to be disassembled and assembled can be inserted into the slot through the opening.

[0009] Optionally, the transmission gear includes a body and a rotating shaft passing through the body. When the transmission gear includes multiple transmission gears, the heights of the multiple rotating shafts decrease in sequence along the setting direction from the driving part to the disassembly part, so that the thickness of the shell along the setting direction from the driving part to the disassembly part gradually decreases.

[0010] Optionally, the transmission part further includes two driven gears, which are spaced apart and arranged on one side of the disassembly part close to the transmission part; the driven gears are respectively meshed with the transmission gear and the gear ring of the disassembly part, and the transmission gear can drive the disassembly part to rotate through the driven gears.

[0011] Optionally, an input shaft is provided on the side of the driving part away from the transmission part, and a first spur bevel gear is sleeved on one end of the input shaft close to the transmission part; the input shaft rotates to drive the first spur bevel gear to rotate, thereby driving the transmission part to rotate, and driving the disassembly and assembly part to rotate.

[0012] Optionally, the input shaft is also sleeved with a first single-row angular contact bearing, and the first single-row angular contact bearing is attached to a side of the first spur bevel gear away from the transmission part.

[0013] Optionally, the transmission gear on the side of the transmission part close to the driving part has a rotating shaft, one end of the rotating shaft is sleeved with a second spur bevel gear meshing with the first spur bevel gear, and the first spur bevel gear can drive the second spur bevel gear to rotate, so as to drive the transmission gear to rotate, and then drive the disassembly and assembly part to rotate.

[0014] Optionally, one end of the rotating shaft with the second spur bevel gear extends to the outside of the housing, the rotating shaft is sleeved with a second single-row angular contact bearing attached to the second spur bevel gear, and a bottom support block is installed on the outer periphery of the second single-row angular contact bearing.

[0015] Another aspect of the present invention provides a handheld tool, comprising the above-mentioned threaded fastener disassembly and assembly mechanism.

[0016] The beneficial effects of the utility model include:

[0017] The present application provides a threaded fastener disassembly and assembly mechanism, comprising a housing, a driving part, a transmission part and a disassembly and assembly part which are sequentially connected in a transmission manner, and the threaded fastener to be disassembled and assembled can be arranged in the disassembly and assembly part; the housing is sleeved on the outside of the driving part, the transmission part and the disassembly and assembly part along the length direction, and the height and width of the housing gradually decrease along the setting direction from the driving part to the disassembly and assembly part; the driving part can drive the transmission part to rotate, so as to drive the disassembly and assembly part to rotate, and then drive the threaded fastener arranged in the disassembly and assembly part to rotate. The disassembly and assembly part of the above-mentioned threaded fastener disassembly and assembly mechanism has a small thickness, and does not need to be rotated during the disassembly and assembly process, and can disassemble and assemble threaded fasteners located in a space with a relatively narrow upper and lower spacing or a relatively narrow left and right spacing, thereby improving the flexibility of use and the efficiency of disassembly and assembly of threaded fasteners. Brief Description of the Figures

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0019] Figure 1 One of the structural schematic diagrams of the thread fastener disassembly and assembly mechanism provided by the embodiment of the present utility model;

[0020] Figure 2 Another structural schematic diagram of the thread fastener disassembly and assembly mechanism provided by the embodiment of the present utility model;

[0021] Figure 3 Another structural schematic diagram of the thread fastener disassembly and assembly mechanism provided by the embodiment of the present utility model;

[0022] Figure 4 Another structural schematic diagram of the thread fastener disassembly and assembly mechanism provided by the embodiment of the present utility model;

[0023] Figure 5 One of the structural schematic diagrams of the interior of the housing of the thread fastener disassembly and assembly mechanism provided by the embodiment of the present utility model;

[0024] Figure 6 Another structural schematic diagram of the interior of the housing of the thread fastener disassembly and assembly mechanism provided by the embodiment of the present utility model.

[0025] Reference numerals: 100 - thread fastener disassembly and assembly mechanism; 110 - housing; 120 - driving part; 121 - input shaft; 122 - first straight bevel gear; 123 - first single-row angular contact bearing; 124 - thread baffle; 130 - transmission part; 131 - transmission gear; 1311 - body; 1312 - rotating shaft; 132 - driven gear; 133 - second straight bevel gear; 134 - second single-row angular contact bearing; 135 - bottom support block; 140 - disassembly and assembly part; 141 - gear ring; 142 - slot; 143 - opening; a - length direction. Detailed implementation manners

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the attached drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Please refer to Figure 1 and Figure 2 , one aspect of the embodiment of the present application provides a threaded fastener disassembly and assembly mechanism 100, comprising a housing 110, a driving part 120, a transmission part 130 and a disassembly and assembly part 140 which are sequentially connected in transmission, and the threaded fastener to be disassembled and assembled can be arranged in the disassembly and assembly part 140; the housing 110 is sleeved on the outside of the driving part 120, the transmission part 130 and the disassembly and assembly part 140 along the length direction, and the height and width of the housing 110 gradually decrease along the setting direction from the driving part 120 to the disassembly and assembly part 140; the driving part 120 can drive the transmission part 130 to rotate, so as to drive the disassembly and assembly part 140 to rotate, and then drive the threaded fastener arranged in the disassembly and assembly part 140 to rotate.

[0031] Specifically, such as Figure 1 and Figure 2As shown in the figure, the present application provides a thread fastener disassembly and assembly mechanism 100. The thread fastener disassembly and assembly mechanism 100 includes a housing 110. Inside the housing 110, a driving part 120, a transmission part 130, and a disassembly and assembly part 140 are sequentially arranged along its length direction a. The driving part 120, the transmission part 130, and the disassembly and assembly part 140 are in transmission connection. The disassembly and assembly part 140 can be clamped with the thread fastener to be disassembled and assembled, and the driving part 120 provides a driving force to drive the disassembly and assembly part 140 to rotate through the transmission part 130. The disassembly and assembly part 140 can rotate counterclockwise or clockwise to realize the installation or disassembly of the thread fastener.

[0032] The existing thread fastener disassembly and assembly mechanism clamps the thread fastener at its end, and the thread fastener disassembly and assembly mechanism is rotated manually to drive the thread fastener to rotate, thereby realizing the disassembly or installation of the thread fastener. However, in order to have a certain strength when rotating the thread fastener, usually the thread fastener disassembly and assembly mechanism has sufficient thickness. In such a case, when the thread fastener is located in a space with a relatively narrow vertical distance, it is difficult for the thread fastener disassembly and assembly mechanism to be inserted into the position where the thread fastener is disassembled and assembled; when the thread fastener is located in a space with a relatively narrow horizontal distance, it is not easy for the thread fastener disassembly and assembly mechanism to rotate, or the rotation amplitude is small, resulting in a low disassembly and assembly efficiency of the thread fastener.

[0033] In order for the thread fastener disassembly and assembly mechanism 100 provided by the present application to be able to extend into a space with a relatively narrow horizontal distance, the width of its housing 110 gradually decreases along the setting direction from the driving part 120 to the disassembly and assembly part 140, as Figure 2 shown, so as to be able to extend into a space with a relatively narrow horizontal distance. At the same time, the thread fastener disassembly and assembly mechanism 100 drives the disassembly and assembly part 140 to rotate through the driving part 120, so that the thread fastener clamped in the disassembly and assembly part 140 rotates. Therefore, the thread fastener disassembly and assembly mechanism 100 itself does not rotate, and even if the horizontal interval is relatively narrow, the disassembly or installation of the thread fastener can be realized, improving the disassembly and assembly efficiency and flexibility.

[0034] At the same time, in order for the thread fastener disassembly and assembly mechanism 100 to be able to extend into a space with a relatively narrow vertical distance, the height of its housing 110 gradually decreases along the setting direction from the driving part 120 to the disassembly and assembly part 140, making the thickness on the side of the driving part 120 thinner, so as to facilitate the disassembly and assembly part 140 to extend into a space with a relatively narrow vertical distance, as Figure 1 shown.

[0035] The disassembly and assembly part 140 of the above-mentioned thread fastener disassembly and assembly mechanism 100 has a small thickness, and the disassembly and assembly process does not require rotation, and can disassemble and assemble thread fasteners located in a space with a relatively narrow vertical distance or horizontal distance, improving the flexibility of use and the disassembly and assembly efficiency of the thread fastener.

[0036] Exemplarily, the transmission part 130 includes at least one transmission gear 131, and a gear ring 141 meshing with the transmission part 130 is provided on the outer periphery of the disassembly and assembly part 140; one end of the disassembly and assembly part 140 is provided with a slot 142, and the slot 142 is used for clamping the threaded fastener to be disassembled and assembled.

[0037] Specifically, as Figure 3 shown, the transmission part 130 includes at least one transmission gear 131. The transmission gear 131 includes a rotating shaft 1312 and a body 1311 sleeved on the rotating shaft 1312, and the body 1311 can rotate around the rotating shaft 1312 as the rotation center. Among them, the transmission gear 131 can be set to one, or multiple can be provided. When the transmission gear 131 is set to one, one side of the transmission gear 131 is in transmission connection with the driving part 120, and the other side is in transmission connection with the disassembly and assembly part 140. When multiple transmission gears 131 are provided, the multiple transmission gears 131 are arranged in sequence along the setting direction from the driving part 120 to the disassembly and assembly part 140 and mesh with each other, and the transmission gears 131 at both ends are respectively in transmission connection with the driving part 120 and the disassembly and assembly part 140.

[0038] As Figure 3 、 Figure 4 and Figure 5 shown, the disassembly and assembly part 140 has a relatively thin cylindrical structure, and a gear ring 141 capable of meshing with the transmission gear 131 of the transmission part 130 is provided on its outer periphery. In order to stably clamp the disassembly and assembly part 140 with the threaded fastener to be disassembled and assembled, a slot 142 is opened at one end of the disassembly and assembly part 140, so that the disassembly and assembly part 140 has a hollow structure similar to a bottle cap, and the threaded fastener can be stably clamped with the disassembly and assembly part 140 through the slot 142, improving the disassembly and assembly efficiency of the threaded fastener.

[0039] In order to further stably connect the threaded fastener with the disassembly and assembly part 140, the inner wall of the slot 142 of the disassembly and assembly part 140 can also be set to a shape adapted to the threaded fastener, such as hexagon, circle, etc.

[0040] Optionally, please refer to Figure 5 , the disassembly and assembly part 140 is arranged at the edge of the housing 110, and an opening 143 is provided on the side wall of the disassembly and assembly part 140. The opening 143 is communicated with the slot 142, and the threaded fastener to be disassembled and assembled can be clamped into the slot 142 through the opening 143.

[0041] Specifically, as Figure 5As shown, in order to make it easier for the threaded fastener to be disassembled and assembled to be caught in the slot 142 of the disassembly and assembly part 140, the disassembly and assembly part 140 is arranged at the edge of the housing 110, and an opening 143 is provided on the side wall of the disassembly and assembly part 140. The opening 143 enables the slot 142 to communicate with the external space. The threaded fastener to be disassembled and assembled can be caught in the slot 142 through the opening 143. After the threaded fastener is installed, the threaded fastener disassembly and assembly mechanism 100 can move the threaded fastener out through the opening 143. The whole process only requires the threaded fastener disassembly and assembly mechanism 100 to slide horizontally, without the need to lift it again. Therefore, in a space with a relatively narrow vertical interval, the disassembly and assembly efficiency of the threaded fastener can be further improved.

[0042] In an implementable manner of the present application, the transmission gear 131 includes a body 1311 and a rotating shaft 1312 passing through the body 1311. When there are multiple transmission gears 131, the heights of the multiple rotating shafts 1312 gradually decrease along the setting direction from the driving part 120 to the disassembly and assembly part 140, so that the thickness of the housing 110 gradually decreases along the setting direction from the driving part 120 to the disassembly and assembly part 140.

[0043] Specifically, both opposite ends of the rotating shaft 1312 of the transmission gear 131 abut against the housing 110 to ensure that the transmission gear 131 can rotate stably; as Figure 5 shown, when there are multiple transmission gears 131, the heights of the multiple rotating shafts 1312 gradually decrease along the setting direction from the driving part 120 to the disassembly and assembly part 140, so that the thickness of the housing 110 gradually decreases along the setting direction from the driving part 120 to the disassembly and assembly part 140, forming a slope. As Figure 1 shown, the thicknesses of the opposite sides of the threaded fastener disassembly and assembly mechanism 100 both gradually decrease along the setting direction from the driving part 120 to the disassembly and assembly part 140, so that both opposite sides of the threaded fastener disassembly and assembly mechanism 100 form slopes. The disassembly and assembly part 140 is arranged at the end with the smallest thickness of the threaded fastener disassembly and assembly mechanism 100, so as to facilitate insertion into a space with a relatively narrow vertical distance, improving the flexibility of the disassembly and assembly process.

[0044] In another implementable manner of the present application, when there are multiple transmission gears 131, the heights of the multiple rotating shafts 1312 can also be set to be the same, and it is ensured that the height of the rotating shaft 1312 is as low as possible, so that the housing 110 is in a relatively thin flat plate shape along the setting direction from the driving part 120 to the disassembly and assembly part 140 (not shown in the figure). The disassembly and assembly part 140 is arranged at the end with the smallest thickness of the threaded fastener disassembly and assembly mechanism 100, so as to facilitate insertion into a space with a relatively narrow vertical distance, improving the flexibility of the disassembly and assembly process.

[0045] Exemplarily, as Figure 3As shown, the transmission part 130 further includes two driven gears 132, and the two driven gears 132 are respectively arranged at intervals on the side of the disassembly and assembly part 140 close to the transmission part 130; the driven gears 132 are respectively meshed with the transmission gear 131 and the tooth ring 141 of the disassembly and assembly part 140, and the transmission gear 131 can drive the disassembly and assembly part 140 to rotate through the driven gears 132.

[0046] Specifically, in order to ensure a good transmission connection relationship between the disassembly and assembly part 140 and the transmission part 130, as Figure 3 shown, the transmission part 130 further includes two driven gears 132. The two driven gears 132 are arranged on the side of the disassembly and assembly part 140 close to the transmission part 130, and are arranged at intervals on the left and right sides of the disassembly and assembly part 140.

[0047] One side of the driven gear 132 is meshed with the transmission gear 131, and the other side is meshed with the tooth ring 141 on the outer periphery of the disassembly and assembly part 140. When the transmission gear 131 rotates, it can drive the driven gear 132 to rotate, and then drive the disassembly and assembly part 140 to rotate. Since both the left and right sides of the disassembly and assembly part 140 can be driven to rotate by the driven gears 132, the rotation reliability of the disassembly and assembly part 140 is improved, and thus the disassembly and assembly efficiency is improved.

[0048] Of course, the transmission gear 131 can also be directly meshed with the tooth ring 141 on the outer periphery of the disassembly and assembly part 140, and the setting of the driven gears 132 can be omitted to reduce the production cost. At the same time, the width of the housing 110 on the side close to the disassembly and assembly part 140 can be further reduced so as to be able to extend into a space with a relatively narrow left and right spacing. It should be noted that the present application does not impose any restrictions on the specific setting manner of the transmission gear 131 and the disassembly and assembly part 140, as long as it can ensure that the transmission gear 131 can drive the disassembly and assembly part 140 to rotate reliably and stably.

[0049] Exemplarily, as Figure 5 shown, an input shaft 121 is provided on the side of the driving part 120 away from the transmission part 130, and a first straight bevel gear 122 is sleeved on one end of the input shaft 121 close to the transmission part 130; the input shaft 121 rotates to drive the first straight bevel gear 122 to rotate, thereby driving the transmission part 130 to rotate to drive the disassembly and assembly part 140 to rotate.

[0050] Specifically, please refer to Figure 5 , an input shaft 121 is provided on the side of the driving part 120 away from the transmission part 130, and the input shaft 121 can input mechanical energy into the thread fastener disassembly and assembly mechanism 100. A first straight bevel gear 122 is also sleeved on one end of the input shaft 121 close to the transmission part 130, and the transmission part 130 is in transmission connection with the driving part 120 through the first straight bevel gear 122. Drive the input shaft 121 to rotate to drive the first straight bevel gear 122 to rotate, and then drive the transmission part 130 and the disassembly and assembly part 140 to rotate.

[0051] Optionally, please refer to Figure 5 The input shaft 121 is also sleeved with a first single-row angular contact bearing 123, which is attached to the side of the first spur bevel gear 122 away from the transmission part 130.

[0052] For details, please refer to Figure 5 , the input shaft 121 is also sleeved with a first single-row angular contact bearing 123, which is attached to the side of the first spur bevel gear 122 away from the transmission part 130. The main function of the first single-row angular contact bearing 123 is to bear the axial load in one direction. During the high-speed rotation of the input shaft 121, the overall reliability of the threaded fastener disassembly and assembly mechanism 100 can be guaranteed, and the disassembly and assembly efficiency of the threaded fastener disassembly and assembly mechanism 100 is improved. Of course, a threaded baffle 124 can also be sleeved on the input shaft 121, and the threaded baffle 124 is arranged on the side of the first single-row angular contact bearing 123 away from the first spur bevel gear 122, so as to play a certain role in limiting the first single-row angular contact bearing 123 and the first spur bevel gear 122.

[0053] For example, please refer to Figure 5 and Figure 6 , the transmission gear 131 of the transmission part 130 close to the driving part 120 has a rotating shaft 1312, one end of the rotating shaft 1312 is sleeved with a second spur bevel gear 133 meshing with the first spur bevel gear 122, the first spur bevel gear 122 can drive the second spur bevel gear 133 to rotate, so as to drive the transmission gear 131 to rotate, and then drive the disassembly part 140 to rotate.

[0054] For details, please refer to Figure 5 and Figure 6 , a transmission gear 131 is provided on the side of the transmission part 130 close to the driving part 120, and the transmission gear 131 includes a rotating shaft 1312 and a body 1311 sleeved on the rotating shaft 1312. A second spur bevel gear 133 is sleeved on the end of the rotating shaft 1312, and the second spur bevel gear 133 is meshed with the first spur bevel gear 122. The driving input shaft 121 rotates to drive the first spur bevel gear 122 to rotate, and then drives the second spur bevel gear 133 to rotate. When the second spur bevel gear 133 rotates, it can drive the rotating shaft 1312 and the body 1311 of the transmission gear 131 to rotate, so that the disassembly part 140 rotates.

[0055] Optionally, the rotating shaft 1312 is provided with one end of the second spur bevel gear 133 extending to the outside of the housing 110, and the rotating shaft 1312 is sleeved with a second single-row angular contact bearing 134 attached to the second spur bevel gear 133, and the outer periphery of the second single-row angular contact bearing 134 is provided with a bottom support block 135. ​​​​

[0056] For details, please refer to Figure 5 and Figure 6 , the rotating shaft 1312 is provided with one end of the second spur bevel gear 133 extending to the outside of the housing 110, and the rotating shaft 1312 is sleeved with a second single-row angular contact bearing 134, which is in contact with the side of the second spur bevel gear 133 away from the body 1311 of the transmission gear 131. The main function of the second single-row angular contact bearing 134 is to bear the axial load in one direction, and the overall reliability of the threaded fastener disassembly and assembly mechanism 100 can be guaranteed during the high-speed rotation of the input shaft 121, thereby improving the disassembly and assembly efficiency of the threaded fastener disassembly and assembly mechanism 100. The outer periphery of the second single-row angular contact bearing 134 is provided with a bottom support block 135 to provide a certain degree of protection for the second single-row angular contact bearing 134.

[0057] In another aspect of the embodiment of the present application, a handheld tool is provided, comprising the above-mentioned threaded fastener disassembly and assembly mechanism 100.

[0058] Specifically, the present application also provides a handheld tool (not shown in the figure), which includes a threaded fastener disassembly mechanism and a handle, which is arranged on one side of the driving part 120 of the threaded fastener disassembly mechanism. A motor is arranged in the handle, and the output shaft of the motor is connected to the input shaft 121 in the driving end to drive the input shaft 121 to rotate, thereby driving the transmission part 130 and the disassembly part 140 to rotate. By way of example, the handheld tool can be an electric wrench. The handle obtained by the above design can disassemble and assemble threaded fasteners located in a space with a relatively narrow upper and lower spacing or a relatively narrow left and right spacing through the threaded fastener disassembly and assembly mechanism 100, thereby improving the flexibility of use and the efficiency of disassembly and assembly of threaded fasteners. Among them, the specific structure and beneficial effects of the threaded fastener disassembly and assembly mechanism 100 have been described in detail above and will not be repeated here.

[0059] The above description is only an optional embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0060] It should also be noted that the various specific technical features described in the above specific implementation methods can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further explain various possible combinations.

Claims

1. A threaded fastener disassembly and assembly mechanism, characterized in that: The invention comprises a shell (110), a driving part (120), a transmission part (130) and a disassembly part (140) which are sequentially connected in a transmission manner, and a threaded fastener to be disassembled can be arranged in the disassembly part (140); the shell (110) is sleeved on the outside of the driving part (120), the transmission part (130) and the disassembly part (140) along the length direction, and the height and width of the shell (110) gradually decrease along the arrangement direction from the driving part (120) to the disassembly part (140); the driving part (120) can drive the transmission part (130) to rotate, so as to drive the disassembly part (140) to rotate, and further drive the threaded fastener arranged in the disassembly part (140) to rotate.

2. The threaded fastener disassembly and assembly mechanism according to claim 1, characterized in that: The transmission part (130) comprises at least one transmission gear (131); the outer periphery of the disassembly part (140) is provided with a gear ring (141) meshing with the transmission part (130); one end of the disassembly part (140) is provided with a slot (142), and the slot (142) is used to clamp a threaded fastener to be disassembled.

3. The threaded fastener disassembly and assembly mechanism according to claim 2, characterized in that: The disassembly and assembly portion (140) is arranged at the edge of the shell (110), and the side wall of the disassembly and assembly portion (140) is provided with an opening (143), and the opening (143) is connected to the slot (142), and the threaded fastener to be disassembled and assembled can be inserted into the slot (142) through the opening (143).

4. The threaded fastener disassembly and assembly mechanism according to claim 2, characterized in that: The transmission gear (131) comprises a main body (1311) and a rotating shaft (1312) passing through the main body (1311). When the transmission gear (131) comprises a plurality of rotating shafts (1312), the heights of the plurality of rotating shafts (1312) decrease in sequence along the setting direction from the driving part (120) to the disassembly part (140), so that the thickness of the housing (110) gradually decreases along the setting direction from the driving part (120) to the disassembly part (140).

5. The threaded fastener disassembly and assembly mechanism according to claim 2, characterized in that: The transmission part (130) further comprises two driven gears (132), and the two driven gears (132) are respectively arranged at intervals on a side of the disassembly part (140) close to the transmission part (130); the driven gears (132) are respectively meshed with the transmission gear (131) and the gear ring (141) of the disassembly part (140), and the transmission gear (131) can drive the disassembly part (140) to rotate through the driven gears (132).

6. The threaded fastener disassembly and assembly mechanism according to claim 4, characterized in that: An input shaft (121) is provided on a side of the driving portion (120) away from the transmission portion (130); a first spur bevel gear (122) is sleeved on an end of the input shaft (121) close to the transmission portion (130); the input shaft (121) rotates to drive the first spur bevel gear (122) to rotate, thereby driving the transmission portion (130) to rotate, thereby driving the disassembly portion (140) to rotate.

7. The threaded fastener disassembly and assembly mechanism according to claim 6, characterized in that: The input shaft (121) is also sleeved with a first single-row angular contact bearing (123), and the first single-row angular contact bearing (123) is attached to a side of the first spur bevel gear (122) facing away from the transmission part (130).

8. The threaded fastener disassembly and assembly mechanism according to claim 6, characterized in that: The transmission gear (131) on the side of the transmission part (130) close to the driving part (120) has the rotating shaft (1312), and one end of the rotating shaft (1312) is sleeved with a second spur bevel gear (133) meshing with the first spur bevel gear (122); the first spur bevel gear (122) can drive the second spur bevel gear (133) to rotate, so as to drive the transmission gear (131) to rotate, thereby driving the disassembly part (140) to rotate.

9. The threaded fastener disassembly and assembly mechanism according to claim 8, characterized in that: The rotating shaft (1312) is provided with one end of the second spur bevel gear (133) extending to the outside of the housing (110); the rotating shaft (1312) is sleeved with a second single-row angular contact bearing (134) attached to the second spur bevel gear (133); and a bottom support block (135) is installed on the outer periphery of the second single-row angular contact bearing (134).

10. A handheld tool, characterized in that: It comprises the threaded fastener disassembly and assembly mechanism (100) as described in any one of claims 1 to 9.

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