A screwdriver dismounting structure, a dismounting tool, a screwdriver and a dismounting method thereof

Abstract

The application discloses a screwdriver machine dismounting structure, a dismounting tool, a screwdriver machine and a dismounting method thereof, and relates to the technical scheme comprising a main body, a main shaft rotatably connected to the main body, an end of the main shaft away from the main body being provided with a tool receiving structure, and a locking assembly connected to the main shaft; a control assembly is sleeved on the outer periphery of the main shaft and is slidably connected with the main shaft, the control assembly comprising a detachably connected movable sleeve and a fixed sleeve, the control assembly having a locking state and an unlocking state, in the locking state, the control assembly is connected with the locking assembly to enable the locking assembly to limit the tool connected with the tool receiving structure, and in the unlocking state, the locking assembly releases the limitation on the tool connected with the tool receiving structure; wherein a dismounting gap is arranged between one end of the fixed sleeve close to the main body and the main body, and the dismounting gap is used for operating to limit the rotation of the fixed sleeve to dismount the movable sleeve. The application can conveniently mount and dismount the screwdriver machine, and improves the production, maintenance efficiency and cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of repair tools, more particularly, to a screwdriver machine disassembling structure, a disassembling tool, a screwdriver machine and a disassembling method thereof. BACKGROUND

[0002] In the existing repair and production field, wrenches and screwdrivers are important components of hand tools and are widely used in various fastening and disassembling operations. However, the traditional impact screwdriver machine and impact wrench generally adopt a single clamping structure design and can only clamp a specific size of hexagonal bit or socket wrench, which greatly limits the flexibility and application range of the tool. For example, the impact screwdriver machine can usually only clamp a 6.35 mm hexagonal bit, and the impact wrench is limited to a 12.7 mm socket wrench. This limitation is particularly evident in complex repair and production scenarios, requiring frequent tool changes and reducing work efficiency.

[0003] In order to overcome this defect, a wrench-screwdriver integrated structure tool has appeared on the market. Through the design of the control assembly, the tool can clamp both a 6.35 mm hexagonal bit and a 12.7 mm socket wrench, realizing the function of multi-purpose clamping. However, this design still has many deficiencies in actual application. First, the disassembly and assembly process is relatively complicated and inconvenient to disassemble, requiring users to have certain operation skills and experience, increasing the complexity and time cost of use and maintenance. Second, due to the complex structure, the production and maintenance costs are also relatively high, which is not conducive to large-scale popularization and application. SUMMARY

[0004] The purpose of the present application is to provide a screwdriver machine disassembling structure, a disassembling tool, a screwdriver machine and a disassembling method thereof, which can be more conveniently assembled and disassembled, and can reduce the production and maintenance costs of the product.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the present application provides a screwdriver machine disassembling structure, comprising:

[0006] a main body;

[0007] a main shaft rotationally connected to the main body, an end of the main shaft away from the main body being provided with a tool receiving structure, and the main shaft being connected with a locking assembly;

[0008] a control assembly, which is sleeved on the outer periphery of the main shaft and is in sliding connection with the main shaft, the control assembly comprising a detachably connected movable sleeve and a fixed sleeve, the control assembly having a locking state and an unlocking state, in the locking state, the control assembly is connected with the locking assembly to enable the locking assembly to limit the tool connected with the tool receiving structure, and in the unlocking state, the locking assembly releases the limitation on the tool connected with the tool receiving structure;

[0009] The fixing sleeve is provided with a disassembly gap between one end close to the main body and the main body, and the disassembly gap is used for operating to limit rotation of the fixing sleeve to disassemble the movable sleeve.

[0010] The fixing sleeve and the movable sleeve of the control assembly can be conveniently disassembled, the disassembly gap between the fixing sleeve and the main body can facilitate insertion of a special tool to fix the fixing sleeve. The disassembly and assembly are realized through sliding or rotation of the movable sleeve relative to the fixing sleeve, and the operation is simple and convenient, which facilitates improvement of production and assembly efficiency and maintenance and disassembly efficiency. The disassembly gap can realize compact matching of the structure and provide operation space for disassembly of the disassembly tool.

[0011] In combination with the first aspect, in a further technical solution, the fixing sleeve is provided with a protruding structure or a groove on the outer periphery, the movable sleeve is provided with a groove or a protruding structure on the inner periphery, and the protruding structure and the groove are sliding and / or rotating matched to realize locking and separation of the fixing sleeve and the movable sleeve.

[0012] In combination with the first aspect, in a further technical solution, the groove includes a positioning groove and a rotation-stopping groove, and the positioning groove and the rotation-stopping groove are both connected with a channel communicating with the end face of the fixing sleeve or the end face of the movable sleeve; the protruding structure includes a boss and a rotation-stopping buckle, and in the locked state of the fixing sleeve and the movable sleeve, the boss is located in the positioning groove, and the rotation-stopping buckle is located in the rotation-stopping groove.

[0013] In the above technical solution, the protruding and groove structure is simple, convenient to process and manufacture, and convenient to operate. The protruding structure also has the locking rotation-stopping buckle and the rotation-stopping groove, which improves the reliability of locking and reduces the risk of separation in work.

[0014] In combination with the first aspect, in a further technical solution, the positioning groove is an arc-shaped groove rotating around the central axis of the fixing sleeve or the central axis of the movable sleeve, and in the locked state of the fixing sleeve and the movable sleeve, the distance from the position of the bottom wall of the boss in contact with the positioning groove to the central axis of the fixing sleeve or the central axis of the movable sleeve is the smallest, so that the rotation-stopping buckle enters the rotation-stopping groove.

[0015] In the above technical solution, through the variable-radius design of the positioning groove, the boss can slide along the positioning groove while moving close to the central axis during the sliding or rotating of the movable sleeve relative to the fixing sleeve, so as to push the rotation-stopping buckle into the rotation-stopping groove, thereby reducing the risk of mutual separation of the fixing sleeve and the movable sleeve.

[0016] In combination with the first aspect, in a further technical solution, the fixing sleeve is provided with a concave-convex structure at one end close to the main body.

[0017] Through the technical scheme, the concave-convex structure facilitates fixing of the fixing sleeve by the tool, prevents the fixing sleeve from rotating during assembly and disassembly, and improves the efficiency and reliability of disassembly and assembly.

[0018] In combination with the first aspect, in a further technical scheme, the tool-receiving structure of the main shaft is a polygonal groove, a sliding groove is arranged on the main shaft in a radial direction and communicates with the polygonal groove and an outer circumferential surface of the main shaft, and the locking assembly is at least two balls arranged in the sliding groove.

[0019] Through the technical scheme, the two balls slide and roll in the sliding groove and are in contact with the screwdriver, which can improve the reliability of the locking state and reduce the abrasion in the assembly state of different specifications of screwdrivers. Because the specifications of different screwdrivers are different, the locking positions are also different. When the balls are in contact with screwdrivers of different specifications at different positions, the balls can effectively reduce the abrasion by moving and rolling.

[0020] In combination with the first aspect, in a further technical scheme, a fixing member is arranged on the main shaft, a first elastic member is arranged between the fixing sleeve and the fixing member, an insert is further connected to the movable sleeve, a second elastic member is arranged between the insert and the fixing member, the first elastic member and the second elastic member are located on two sides of the fixing member, and a K value of the first elastic member is greater than a K value of the second elastic member.

[0021] Through the technical scheme, the insert and the movable sleeve are driven to slide relative to the main shaft by the second elastic member and the first elastic member respectively. When the movable sleeve drives the fixing sleeve to move relative to the main shaft, the second spring drives the insert to move and the first spring prevents the fixing sleeve from moving, the movement of the insert releases the pushing force of the balls to the insert, so as to realize the unlocking of the balls to the tool. After the driving force on the movable sleeve disappears, the first spring provides a restoring force and the second spring prevents the restoring force, because the K value of the first elastic member is greater than the K value of the second elastic member, the fixing sleeve drives the movable sleeve, the movable sleeve drives the insert to return, and the insert pushes the balls to realize the locking of the tool.

[0022] In a second aspect, the application provides a disassembly and assembly tool for locking and unlocking the screwdriver machine disassembly and assembly structure of the first aspect, the disassembly and assembly tool comprising an opening portion for avoiding the main shaft and a convex portion or a concave portion for limiting rotation of the fixing sleeve, wherein at least part of the thickness of the disassembly and assembly tool is less than the disassembly and assembly gap.

[0023] Through the technical scheme, the specific matched disassembly and assembly tool can facilitate the fixing of the fixing sleeve and prevent the fixing sleeve from rotating, so as to disassemble the movable sleeve.

[0024] In a third aspect, the application provides a screwdriver machine comprising the screwdriver machine disassembly and assembly structure of the first aspect.

[0025] In a fourth aspect, the application provides a screwdriver disassembly and assembly method, which uses the disassembly and assembly tool of the second aspect to disassemble and assemble the screwdriver of the third aspect, and includes the following steps:

[0026] The installation step is to install the fixed sleeve on the main shaft, install the first elastic member, install the fixed member on the main shaft, install the insert, fix the fixed sleeve by inserting the disassembly and assembly tool between the main body and the fixed sleeve, combine the movable sleeve with the fixed sleeve by passing through the main shaft and the insert, and lock the fixed sleeve and the movable sleeve by rotating the movable sleeve;

[0027] The disassembly step is to fix the fixed sleeve by inserting the disassembly and assembly tool into the disassembly and assembly gap between the fixed sleeve and the main body, and separate the movable sleeve and the fixed sleeve by rotating the movable sleeve in the opposite direction.

[0028] In summary, the application has at least one of the following beneficial technical effects:

[0029] 1. The screwdriver disassembly and assembly structure of the application is simple in structure, convenient and fast to disassemble and assemble, and reduces the difficulty of disassembly and assembly.

[0030] 2. The screwdriver disassembly and assembly structure of the application can improve production and maintenance efficiency and reduce production and maintenance costs.

[0031] 3. The screwdriver of the application cooperates with the disassembly and assembly tool, facilitating the maintenance and replacement of spare parts.

[0032] 4. The screwdriver disassembly and assembly method of the application improves assembly and disassembly efficiency, improves user experience and recognition. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only embodiments of the application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0034] Figure 1 The structure diagram of the first embodiment of the screwdriver disassembly and assembly structure provided by the application;

[0035] Figure 2 The schematic diagram of the first embodiment of the screwdriver disassembly and assembly structure of the application and the screw assembly;

[0036] Figure 3 The schematic diagram of the first embodiment of the screwdriver disassembly and assembly structure of the application and the sleeve assembly;

[0037] Figure 4 The exploded structure diagram of the first embodiment of the screwdriver disassembly and assembly structure of the application;

[0038] Figure 5 Structure diagram of the fixed sleeve of the first embodiment of the screwdriver disassembly and assembly structure of the present application;

[0039] Figure 6 Structure diagram of the movable sleeve of the first embodiment of the screwdriver disassembly and assembly structure of the present application;

[0040] Figure 7 Structure diagram of the second embodiment of the screwdriver disassembly and assembly structure of the present application;

[0041] Figure 8 Structure diagram of the second embodiment of the screwdriver disassembly and assembly structure of the present application assembled with the sleeve;

[0042] Figure 9 Exploded view of the second embodiment of the screwdriver disassembly and assembly structure of the present application;

[0043] Figure 10 Structure diagram of the disassembly and assembly tool of the present application;

[0044] Figure 11 Structure diagram of the disassembly and assembly tool of the present application;

[0045] Figure 12 Structure diagram of the screwdriver of the present application.

[0046] Reference signs:

[0047] 100, screwdriver disassembly and assembly structure; 1, main body; 2, main shaft; 21, polygonal groove; 3, bit; 4, wrench sleeve; 5, locking steel ball; 6, sealing assembly; 7, control assembly; 71, insert; 711, first contact surface; 712, second contact surface; 72, fixed sleeve; 721, fixed boss; 722, rotation-stopping buckle; 723, concave-convex structure; 73, movable sleeve; 731, positioning groove; 7311, first channel; 732, rotation-stopping groove; 7321, second channel; 8, limiting stop ring; 9, first spring; 91, second spring; 10, sealing structure; L, disassembly and assembly gap;

[0048] 200, disassembly and assembly tool; 201, opening part; 202, convex part; 203, handle;

[0049] 300, screwdriver; 301, main machine. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0051] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0052] In the description of the application, it should be understood that the terms "up", "down", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the application.

[0053] The embodiments of the application will be described in detail below with reference to the drawings. The features in the following examples can be combined with each other without conflict. Example 1

[0054] The core of this embodiment is to provide a screwdriver machine disassembly structure, which can be more convenient to assemble and disassemble, and can reduce the production cost of the product.

[0055] Please refer to Figures 1-4 A screwdriver machine disassembly structure includes a main body 1, a main shaft 2, a locking assembly, a sealing assembly 6 and a control assembly 7, the locking assembly in this embodiment is a locking steel ball 5.

[0056] Specifically, the first end of the main body 1 is provided with a through hole for mounting the main shaft 2, so that one end of the main shaft 2 is located in the inner cavity of the main body 1, and the other end of the main shaft 2 extends to the outside of the main body 1, that is, by setting the through hole, the rotating connection of the main shaft 2 and the main body 1 can be realized, so that the main shaft 2 transmits the output power of the motor in the inner cavity of the main body 1 to the next component, thereby completing the effective output of power. The end of the main shaft away from the main body is provided with a tool receiving structure, which is a polygonal groove for mounting the bit 3 along the axial direction of the main shaft 2, and the bit 3 to be used is preliminarily fixed through the polygonal groove, and a polygonal column for sleeving the wrench sleeve 4 is arranged on the outer periphery of the polygonal groove. In this device, the output path of the power is that the motor outputs to the main shaft 2, and the main shaft 2 transmits the power to the bit 3, thereby realizing the power output of the device.

[0057] The circumferential direction of the polygonal recess is provided with a long hole extending radially along the main shaft 2 and used for mounting two locking steel balls 5, the long hole is through the polygonal recess, the locking steel balls 5 can move along the length direction of the long hole, that is, through the back and forth movement of the locking steel balls 5 along the radial direction of the main shaft 2 to realize the locking and loosening of the bit 3. The inner periphery of the control assembly 7 provided on the outer periphery of the main shaft 2 abuts against the locking steel balls 5, and through the cooperation of the control assembly 7 and the locking steel balls 5, the locking and unlocking of the bit 3 is realized.

[0058] The control assembly 7 is sleeved on the outer periphery of the main shaft 2 and is in sliding connection with the main shaft 2, the control assembly 7 includes a detachably connected movable sleeve 73 and a fixed sleeve 72, the control assembly 7 has a locking state and an unlocking state relative to the main shaft 2, in the locking state, the control assembly 7 is connected with the locking assembly to make the locking assembly limit the tool connected with the tool receiving structure, in the unlocking state, the locking assembly releases the limitation of the tool connected with the tool receiving structure. Wherein, the fixed sleeve 72 is provided with a disassembly gap L between the one end close to the main body 1 and the main body 1, the disassembly gap L is used for operating to limit the rotation of the fixed sleeve 72 to disassemble the movable sleeve 73.

[0059] The control assembly includes a movable sleeve insert 71, a fixed sleeve 72 and a movable sleeve 73, the movable sleeve insert 71 is provided on the outer periphery of the main shaft 2, the inner periphery of the movable sleeve insert 71 abuts against the locking steel balls 5 in the locking state, the fixed sleeve 72 is provided on the outer periphery of the main shaft 2 and is close to one side of the main body 1, and the movable sleeve 73 is sleeved on the outer periphery of the movable sleeve insert 71 and the fixed sleeve 72. A fixed part is also fixedly connected on the main shaft 2, a first elastic part for applying a restoring force of the fixed sleeve 72 to the direction of the main body 1 is arranged between the fixed sleeve 72 and the fixed part, and the first elastic part is a first spring 9. In the embodiment, the movable sleeve 73 and the insert 71 are fixedly connected through interference fit, the insert 71 is provided with a first contact surface 711 and a second contact surface 712, the distance between the second contact surface 712 and the center line of the main shaft 2 is greater than the distance between the first contact surface 711 and the center line of the main shaft 2. In the locking state, the first contact surface 711 of the insert 71 abuts against the locking steel balls 5 to push the locking steel balls 5 into the polygonal recess 21 to lock the screwdriver. In the unlocking state, when the bit 3 is taken out, the movable sleeve 73 is slid to the direction away from the main body 1 by applying force, the first contact surface 711 is away from the locking steel balls 5, the locking steel balls 5 are pushed into the space surrounded by the second contact surface 712 during the pulling process of the bit 3, the locking steel balls 5 are separated from the polygonal recess 21 and cannot lock the bit 3, and the unlocking is realized. After the force on the movable sleeve 73 disappears, the first spring 9 pushes the fixed sleeve 72 to reset to the direction of the main body 1, and the fixed sleeve 72 drives the movable sleeve 73 and the insert 71 to reset together.

[0060] It should be noted that through the cooperation of the movable sleeve insert 71, the fixed sleeve 72 and the movable sleeve 73, the positioning of the locking steel balls 5 can be realized.

[0061] Wherein, the movable sleeve 73 and the movable sleeve insert 71 are fixedly connected through interference fit, and the fixed sleeve 72 is pre-installed on the main shaft 2 in the circumferential direction. In this way, the locking and dismounting of the fixed sleeve 72 can be achieved only by rotating the movable sleeve 73. This arrangement is conducive to the quick and accurate installation and dismounting of the control assembly 7, and is simple and convenient to operate. In actual life, the arrangement of the movable sleeve insert 71, the fixed sleeve 72 and the movable sleeve 73 is not limited as long as the above technical effects can be achieved.

[0062] In this embodiment, the forward rotation of the movable sleeve 73 is used to lock the fixed sleeve 72, and the reverse rotation of the movable sleeve 73 is used to unlock the fixed sleeve 72. In actual life, the forward and reverse directions are not limited, and can be set according to the actual situation. The key is to set the rotation direction of the movable sleeve 73 so that it is not easy to be separated from the fixed sleeve 72.

[0063] Please refer to Figure 5 and Figure 6 The fixed sleeve 72 is provided with a protruding structure or a groove on the outer periphery, and the movable sleeve 73 is provided with a groove or a protruding structure on the inner periphery. The protruding structure and the groove are in sliding and / or rotating cooperation to realize the locking and separation of the fixed sleeve 72 and the movable sleeve 73. The groove includes a positioning groove 731 and a rotation stopping groove 732, and both the positioning groove 731 and the rotation stopping groove 732 are connected with a passage communicating with the end face of the fixed sleeve 72 or the end face of the movable sleeve 73. The protruding structure includes a boss and a rotation stopping buckle 722. In the locked state of the fixed sleeve 72 and the movable sleeve 73, the boss is located in the positioning groove 731, and the rotation stopping buckle 722 is located in the rotation stopping groove 732. The positioning groove 731 is an arc-shaped groove rotating around the center axis of the fixed sleeve 72 or the center axis of the movable sleeve 73. In the locked state of the fixed sleeve 72 and the movable sleeve 73, the distance from the position of the bottom wall of the boss in contact with the positioning groove 731 to the center axis of the fixed sleeve 72 or the center axis of the movable sleeve 73 is the smallest, so that the rotation stopping buckle 722 enters the rotation stopping groove 732. That is, the radius of the bottom wall of the positioning groove 731 decreases in the locking direction, and the position of the boss in contact with the positioning groove 731 is the smallest, so that the movable sleeve 73 and the fixed sleeve 72 move radially relative to each other, and the rotation stopping buckle 722 enters the rotation stopping groove 732 to be locked.

[0064] Please refer to Figure 5 and Figure 6The outer periphery of the fixed sleeve 72 is provided with a fixed boss 721 and a rotation-stopping buckle 722, and the inner periphery of the movable sleeve 73 is provided with a positioning groove 731 and a rotation-stopping groove 732, the positioning groove 731 is used for clamping the fixed boss 721, and the rotation-stopping groove 732 is used for clamping the rotation-stopping buckle 722. The end of the fixed sleeve 72 close to the main body 1 is provided with a concave-convex structure 723. The concave-convex structure 723 includes a plurality of convex ribs arranged on the end face of the fixed sleeve 72 close to the main body 1, and the plurality of convex ribs are distributed in the circumferential direction of the end face of the fixed sleeve 72. In the embodiment, the convex ribs are uniformly distributed in the circumferential direction, and in actual application, the convex ribs can be irregularly arranged as long as the rotation-stopping effect can be achieved. It can be understood that by arranging the clamping structure in the circumferential direction of the fixed sleeve 72, the relative fixation of the fixed sleeve 72 and the movable sleeve 73 is achieved, and the clamping structure can be the fixed boss 721 and the rotation-stopping buckle 722, or other clamping members, as long as the clamping of the fixed sleeve 72 and the movable sleeve 73 can be achieved.

[0065] In one embodiment, the fixed boss 721 is a rectangular structure with an arc along the outer periphery of the fixed sleeve 72, the rotation-stopping buckle 722 is a circular truncated cone structure extending radially outward from the fixed sleeve 72, and the rotation-stopping groove 732 is a circular hole. However, in actual life, this is not limited, as long as the above technical effects can be achieved.

[0066] It should be noted that the clamping of the positioning groove 731 and the fixed boss 721 achieves the first fixation of the fixed sleeve 72 and the movable sleeve 73, the clamping of the rotation-stopping groove 732 and the rotation-stopping buckle 722 achieves the second fixation of the fixed sleeve 72 and the movable sleeve 73, and the arrangement of the two clamping structures achieves the double fixation of the fixed sleeve 72 and the movable sleeve 73, thereby effectively locking the batch head 3.

[0067] In another embodiment, the fixed sleeve 72 is provided with various clamping grooves, and the movable sleeve 73 is provided with various corresponding clamping members. The cooperation of the clamping grooves and the clamping members achieves the fixation of the fixed sleeve 72 and the movable sleeve 73. In actual life, the type, arrangement position, and specification of the clamping structure are not limited, as long as the above technical effects can be achieved.

[0068] On the basis of the above-mentioned embodiments, the inner periphery of the movable sleeve 73 is provided with a first channel 7311 communicating with the positioning groove 731 and a second channel 7321 communicating with the rotation-stopping groove 732, and one end of each of the first channel 7311 and the second channel 7321 communicates with the end face of the movable sleeve 73.

[0069] Further, the first channel 7311 and the second channel 7321 are both inverted L-shaped structures, the first channel 7311 cooperates with the fixed boss 721 to enable the fixed boss 721 to move along the first channel 7311, and the second channel 7321 cooperates with the rotation-stopping buckle 722 to enable the rotation-stopping buckle 722 to move along the second channel 7321.

[0070] It should be noted that the first channel 7311 and the second channel 7321 are arranged on the movable sleeve 73, so that the fixing boss 721 can be pushed into the movable sleeve 73 along the first channel 7311, and the rotation-stopping buckle 722 can be pushed into the movable sleeve 73 through the second channel 7321. The radius of the bottom wall of the first channel 7311 decreases in the fastening direction, and the radius is the smallest in the locked position. When the fixing boss 721 moves to the locked position (i.e., the end of the first channel 7311), the rotation-stopping buckle 722 is pushed into the rotation-stopping groove 732 in the movable sleeve 73. The fixing sleeve 72 is fixed by the dismounting tool 200, and the movable sleeve 73 is rotated in the forward direction, so as to realize the clamping of the fixing sleeve 72 and the movable sleeve 73.

[0071] As a preferred embodiment, the positioning groove 731 and the rotation-stopping groove 732 are arranged at the ends of the first channel 7311 and the second channel 7321 respectively, so that the first channel 7311 and the second channel 7321 have the effect of primary positioning, and the positioning groove 731 and the rotation-stopping groove 732 have the effect of secondary positioning. Through the two times of positioning, the effective locking of the fixing sleeve 72 and the movable sleeve 73 is realized. However, in actual life, the specific positions of the positioning groove 731 and the rotation-stopping groove 732 in the first channel 7311 and the second channel 7321 are not limited, as long as the above technical effects can be achieved.

[0072] The self-locking and dismounting process of the device is as follows: the rotation-stopping buckle 722 and the fixing boss 721 arranged on the fixing sleeve 72 are pushed into the corresponding positions through the first channel 7311 and the second channel 7321 arranged on the movable sleeve 73 in the set assembly direction. After being pushed in, a relatively small space gap is formed between the fixing sleeve 72 and the main body 1. The concave-convex structure 723 of the fixing sleeve 72 is used to limit the rotation of the fixing sleeve 72 in the gap. The rotation of the movable sleeve 73 can make the rotation-stopping buckle 722 on the fixing sleeve 72 clamped into the rotation-stopping groove 732, and the fixing boss 721 on the fixing sleeve 72 and the positioning groove 731 on the movable sleeve 73 realize the axial movement limiting. Under the action of the first spring 9, the relative reliable fixing and self-locking of the movable sleeve 73 and the fixing sleeve 72 are realized. When dismounting, the fixing sleeve 72 is fixed by using the dismounting tool in the gap between the fixing sleeve 72 and the main body 1. The movable sleeve 73 is rotated in the opposite direction, so that the rotation-stopping buckle 722 on the fixing sleeve 72 is separated from the rotation-stopping groove 732 of the movable sleeve 73. Until the rotation-stopping buckle 722 is axially pulled out of the fixing sleeve 72, the dismounting is completed.

[0073] In the above embodiment, the fixing boss 721 and the rotation-stopping buckle 722 are each provided with at least two, and the positioning groove 731 and the rotation-stopping groove 732 are arranged correspondingly to the fixing boss 721 and the rotation-stopping buckle 722.

[0074] It can be understood that, in an embodiment, the fixing bosses 721 and the rotation-stopping buckles 722 are both provided with two, three or more corresponding positioning grooves 731 and rotation-stopping grooves 732, and the fixing bosses 721 and the rotation-stopping buckles 722 can be arranged in a cross manner in the circumferential direction of the fixing sleeve 72, or the fixing bosses 721 can be arranged adjacently, without limitation.

[0075] In another embodiment, the fixing bosses 721 and the rotation-stopping buckles 722 can be arranged in a cross manner in the axial direction of the fixing sleeve 72.

[0076] Reference Figures 1-6 As a preferred embodiment, the second end of the movable sleeve insert 71 abuts against the limiting ring 8, and the limiting ring 8 is provided between the movable sleeve 73 and the fixing sleeve 72.

[0077] It should be noted that the movable sleeve 73 and the fixing sleeve 72 are self-locked by the structure of the two parts, and are limited and not separated from each other. After the limiting ring 8 is provided, the control assembly 7 is limited to be separated from the main shaft 2, and after the first spring 9 is provided, the control assembly 7 can be reset to a free position after the chuck 3 is unlocked or locked. The movable sleeve 73 and the insert 71 limit the locking ball 5, and the chuck 3 is self-locked in the main shaft 2. When the chuck 3 needs to be unlocked and pulled out, the movable sleeve 73 is pushed to move the locking sleeve assembly in the axial direction to the chuck 3 direction by a certain position, so that the movable sleeve insert 71 moves out of the positioning space of the locking ball 5. The locking ball 5 has a radial movement space in the movable sleeve insert 71. When the chuck 3 is taken out, the movable sleeve 73 is loosened, and the locking ball 5 returns to the initial position under the action of the first spring 9.

[0078] In the above case, the main shaft 2 is a T-shaped shaft, and the outer periphery of the first end of the main shaft 2 is provided with an annular groove for installing an O-ring.

[0079] It can be understood that the outer periphery of the first end of the main shaft 2 is provided with a sealing structure 10, which includes a snap spring and an O-ring. The snap spring is used to fix the wrench sleeve 4, and the O-ring is used to seal the main shaft 2 and the wrench sleeve 4. In this embodiment, the main shaft 2 and the wrench sleeve 4 are fixed and sealed by the above-mentioned manner, but in actual life, this is not limited, as long as the above technical effects can be achieved.

[0080] In the above embodiment, the long hole is provided with at least two groups, and at least two locking balls 5 are arranged in any one group of long holes.

[0081] It should be noted that the number of long holes can be set according to the actual situation, and the diameter of the long hole is not limited, as long as it can cooperate with the locking steel ball 5, and the locking steel ball 5 can be one or two groups, which is not limited. The key to the design is that in the locked state, the first contact surface 711 abuts against the ball farthest from the center line of the main shaft 2 to make the ball closest to the center line of the main shaft 2 partially enter the polygonal groove 21; in the unlocked state, the insert 71 slides relative to the main shaft 2 to the second contact surface 712 corresponding to the sliding groove, and the ball closest to the center line of the main shaft 2 completely enters the sliding groove.

[0082] On the basis of the above embodiment, the outer periphery of the main shaft 2 is provided with a sealing assembly 6, which is used to seal the main shaft 2 and the main body 1.

[0083] It can be understood that the sealing assembly 6 includes a snap spring and an O-ring, which fixes the main shaft 2 on the main body 1 through the snap spring, and seals the gap between the main shaft 2 and the main body 1 through the O-ring, but in actual life, the parts for sealing and fixing the main shaft 2 are not limited, as long as the above technical effects can be achieved.

[0084] In summary, the dismounting structure of the spoon machine provided by the present application can be used as a multi-purpose clamping structure product for impact wrench and impact spoon machine, which can realize the fixation and clamping of 12.7mm or 19mm wrench sleeve 4, and can clamp 6.35mm hexagonal screwdriver bit 3, and realizes more convenient assembly mode and disassembly mode, and reduces the implementation cost of the product. Embodiment 2

[0085] Please refer to Figures 7-9 The difference between the embodiment and the embodiment is that a second elastic member is arranged between the fixing member 8 and the insert 71, and the second elastic member is a second spring 91, the first spring 9 and the second spring 91 are located on both sides of the fixing member 8, and the K value of the first spring 9 is greater than the K value of the second spring 91.

[0086] In use, the first spring 9 pushes the fixed sleeve 72 to move towards the main body 1, and the second spring 91 pushes the insert 71 to move away from the main body 1, because the elastic force of the first spring 9 is greater than that of the second spring 91, and because the operating assembly 7 is in the locked state when it is close to the main body 1 in the free state. When the movable sleeve 73 is driven to move away from the main body 1, the first spring 9 is compressed, and the second spring 91 pushes the insert 71 to move away from the main body 1, and the operating assembly 7 is in the unlocked state. The structure of the embodiment has the advantages that the insert 71 and the movable sleeve 73 are in sliding connection, and the impact wear is small during work, which can better ensure the realization of the unlocked state. In the first embodiment, the insert 71 and the movable sleeve 73 are in interference fit, and will be worn during work impact. After a long time, the connection is unreliable, which causes the movable sleeve 73 to be unable to drive the insert 71 to move away from the main body 1 in the unlocked state, resulting in failure of the unlocking function. In the embodiment, the insert 71 and the movable sleeve 73 can be in interference fit or sliding connection, and both can realize effective locking and unlocking functions. Embodiment 3

[0087] Please refer to Figure 10 , Figure 11 , the embodiment discloses a disassembling tool for locking and unlocking the screwdriver machine disassembling structure in the first embodiment and the second embodiment. The disassembling tool 200 comprises an opening part 201 for avoiding the main shaft and a convex part or a concave part for limiting the rotation of the fixed sleeve. The embodiment is a convex part 202. At least part of the thickness of the disassembling tool 200 is smaller than the disassembling gap L of the screwdriver machine.

[0088] Please refer to Figure 3 , Figure 5 , Figure 6 , Figure 10 When the operating assembly 7 needs to be disassembled, the fixed sleeve 72 is inserted into the movable sleeve 73, and the disassembling tool 200 is used in the disassembling gap L between the fixed sleeve 72 and the main body 1 to make the convex part 202 of the disassembling tool 200 clamped into the convex-concave structure 723 of the fixed sleeve 72, so that the fixed sleeve 72 is fixed. At the same time, the movable sleeve 73 is rotated in the forward direction to lock the fixed sleeve 72 and the movable sleeve 73. At this time, the movable sleeve insert 71 moves along the radial direction of the main shaft 2 to tighten, so as to be locked.

[0089] When disassembly is needed, the disassembling tool 200 is used to fix the fixed sleeve 72 in the disassembling gap L between the fixed sleeve 72 and the main body 1, and at the same time, the movable sleeve 73 is rotated in the reverse direction to realize the unlocking of the fixed sleeve 72 and the movable sleeve 73, so that the movable sleeve 73 and the fixed sleeve 72 are separated. Embodiment 4

[0090] Please refer to Figure 12 , the embodiment discloses a screwdriver machine 300, which comprises the screwdriver machine disassembling structure 100 in the first embodiment or the second embodiment and a main machine 301. Embodiment 5

[0091] This embodiment discloses a method for disassembling a screwdriver machine, which is suitable for disassembling the screwdriver machine of embodiment four by the disassembling tool 200 of embodiment three, and comprises the following steps:

[0092] The installation step is to install the fixed sleeve on the main shaft, install the first elastic member, install the fixed member on the main shaft, install the embedded member, insert the disassembling tool between the main body and the fixed sleeve to fix the fixed sleeve, pass the movable sleeve through the main shaft and the embedded member to combine with the fixed sleeve, and lock the fixed sleeve and the movable sleeve by rotating the movable sleeve in the forward direction.

[0093] The disassembling step is to insert the disassembling tool between the fixed sleeve and the main body to fix the fixed sleeve, and separate the movable sleeve and the fixed sleeve by rotating the movable sleeve in the reverse direction.

[0094] It should be noted that in this specification, the relationship terms such as first and second are only used to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between the entities.

[0095] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0096] The principles and implementation modes of the present application are described by applying specific examples in this paper. The above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be noted that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A screwdriver assembly / disassembly structure, characterized in that, include: main body; A main shaft is rotatably connected to the main body, and a tool receiving structure is provided at the end of the main shaft away from the main body. A locking component is connected to the main shaft. A control component is sleeved on the outer periphery of the spindle and slidably connected to the spindle. The control component includes a detachably connected movable sleeve and a fixed sleeve. The control component has a locked state and an unlocked state. In the locked state, the control component is connected to the locking component so that the locking component limits the tool receiving structural connection. In the unlocked state, the locking component releases the limitation on the tool receiving structural connection. The fixed sleeve has a disassembly gap between its end near the main body and the main body. The disassembly gap is used to restrict the rotation of the fixed sleeve in order to disassemble and assemble the movable sleeve.

2. The screwdriver assembly / disassembly structure according to claim 1, characterized in that, The fixed sleeve has a raised structure or a groove on its outer periphery, and the movable sleeve has a groove or a raised structure on its inner periphery. The raised structure and the groove slide and / or rotate to achieve locking and separation of the fixed sleeve and the movable sleeve.

3. The screwdriver assembly / disassembly structure according to claim 2, characterized in that, The groove includes a positioning groove and an anti-rotation groove, both of which are connected to a channel communicating with the end face of the fixed sleeve or the end face of the movable sleeve; the protrusion structure includes a boss and an anti-rotation buckle. In the locked state of the fixed sleeve and the movable sleeve, the boss is located in the positioning groove and the anti-rotation buckle is located in the anti-rotation groove.

4. The screwdriver assembly / disassembly structure according to claim 3, characterized in that, The positioning groove is an arc-shaped groove that rotates around the central axis of the fixed sleeve or the central axis of the movable sleeve. When the fixed sleeve and the movable sleeve are locked, the distance from the bottom wall position of the boss that contacts the positioning groove to the central axis of the fixed sleeve or the central axis of the movable sleeve is minimized, so that the anti-rotation buckle can enter the anti-rotation groove.

5. The screwdriver disassembly and assembly structure according to any one of claims 1-4, characterized in that, The fixing sleeve has a concave-convex structure at one end near the main body.

6. The screwdriver disassembly and assembly structure according to any one of claims 1-4, characterized in that, The tool receiving structure of the spindle is a polygonal groove, and a sliding groove is provided in the radial direction of the spindle to connect the polygonal groove and the outer peripheral surface of the spindle. The locking component consists of at least two spheres disposed in the sliding groove.

7. The screwdriver disassembly and assembly structure according to any one of claims 1-4, characterized in that, The main shaft is provided with a fixing member, and a first elastic member is provided between the fixing sleeve and the fixing member. The movable sleeve is also connected with an insert, and a second elastic member is provided between the insert and the fixing member. The first elastic member and the second elastic member are located on both sides of the fixing member, and the K value of the first elastic member is greater than the K value of the second elastic member.

8. A disassembly and assembly tool, characterized in that, For locking and unlocking the screwdriver disassembly and assembly structure according to any one of claims 1-7, the disassembly and assembly tool includes an opening for avoiding the spindle, a protrusion or a recess for restricting the rotation of the fixed sleeve, wherein the thickness of the disassembly and assembly tool is at least partially smaller than the disassembly and assembly gap.

9. A screwdriver, characterized in that, Includes the screwdriver disassembly and assembly structure as described in any one of claims 1-7.

10. A method for disassembling and assembling a screwdriver, characterized in that, The tool applicable to disassembling and assembling the screwdriver described in claim 9, which refers to claim 7, using the disassembly and assembly tool of claim 8, includes the following steps: Installation steps: Install the fixed sleeve on the main shaft, install the first elastic element, install the fixed element on the main shaft, install the insert, use the disassembly and assembly tool to insert between the main body and the fixed sleeve to fix the fixed sleeve, the movable sleeve passes through the main shaft and the insert and engages with the fixed sleeve, rotate the movable sleeve in the forward direction to lock the fixed sleeve and the movable sleeve. The disassembly process involves inserting a disassembly tool into the gap between the fixed sleeve and the main body to secure the fixed sleeve, and then rotating the movable sleeve in the opposite direction to separate the movable sleeve from the fixed sleeve.

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