fastening device

Abstract

The application provides a fastening device, which comprises a housing, a mounting cavity and an opening which are connected, a working member, at least a part of the working member is exposed to the mounting cavity through the opening, a driving assembly which is arranged in the housing and can drive the working member to rotate, and a grabbing assembly which is movably arranged in the mounting cavity and can move between a first position and a second position, wherein, when the grabbing assembly is in the first position, a part of the grabbing assembly extends out of the mounting cavity through the opening and matches with a fastening piece which is arranged on the working member, and when the grabbing assembly is in the second position, the grabbing assembly is separated from the fastening piece and at least a part of the grabbing assembly is arranged in the mounting cavity.

Description

Technical Field

[0001] This invention relates to the field of installation tool technology, and more specifically, to a fastening device. Background Technology

[0002] Currently, screwdrivers in related technologies frequently fall off during the assembly of tiny screws or bolts, making them difficult to pick up and fix, resulting in low installation efficiency. Summary of the Invention

[0003] The embodiments of the present invention are intended to at least solve one of the technical problems existing in the prior art.

[0004] Therefore, a first aspect of the embodiments of the present invention provides a fastening device.

[0005] In view of the above, according to a first aspect of the present invention, a fastening device is provided, the fastening device comprising: a housing having a communicating mounting cavity and an opening; a working member having at least a portion thereof exposed through the opening into the mounting cavity; a drive assembly disposed in the housing and capable of driving the working member to rotate; and a gripping assembly movably disposed in the mounting cavity and capable of moving between a first position and a second position; wherein, when the gripping assembly is in the first position, a portion of the gripping assembly extends out of the mounting cavity through the opening and engages with a fastener to be fastened placed on the working member; and when the gripping assembly is in the second position, the gripping assembly separates from the fastener to be fastened, and at least a portion of the gripping assembly is located within the mounting cavity.

[0006] The fastening device provided in this embodiment of the invention includes a housing, a working part, a driving assembly, and a gripping assembly. Specifically, the housing is provided with a mounting cavity and an opening, and the mounting cavity and the opening are in communication.

[0007] At least a portion of the workpiece is exposed through an opening in the mounting cavity, allowing the fastener to be placed on the workpiece. Optionally, the fastener includes screws, bolts, etc. The workpiece includes a fastening tool. Specifically, the workpiece is rotatable under the drive of a drive assembly, allowing the fastener to be installed and removed when placed on the workpiece.

[0008] The gripping component is disposed within the mounting cavity and is movable relative to the mounting cavity, wherein the gripping component can move between a first position and a second position. Specifically, when the gripping component moves to the first position, a portion of the gripping component extends out of the mounting cavity through an opening, and the portion of the gripping component extending out of the mounting cavity can engage with the fastener to be fastened placed on the workpiece, thereby enabling the gripping component to hold the fastener, i.e., temporarily fix the fastener, effectively avoiding the problem of the fastener frequently falling off the workpiece during the assembly process, which affects the installation efficiency. Even for small screws or bolts, reliable fixing can be achieved, improving the installation efficiency of the fastener.

[0009] Understandably, when the fastener to be fastened is placed in the installation position, the working part drives the fastener to rotate through the drive component, thus completing the installation of the fastener. During this process, the gripping component separates from the fastener and retracts into the installation cavity, improving the convenience of using the fastening device.

[0010] By extending or retracting a portion of the gripping component into the mounting cavity, it can be fixed and separated from the fastener to be fastened. It is highly practical, has a simple structure, and is compact in size, making it suitable for use in installation environments with limited space and improving the user experience.

[0011] In addition, the fastening device provided by the above-described technical solution of the present invention also has the following additional technical features:

[0012] In some technical solutions, the gripping component may optionally include a trigger and a plurality of mating claws, wherein the trigger is movably disposed on the housing and at least partially exposed in the mounting cavity, and the plurality of mating claws are spaced apart on the trigger; wherein, when the trigger is triggered, the trigger can drive the plurality of mating claws to move relative to the housing, so that the end of each mating claw facing away from the trigger extends out of the mounting cavity through an opening and engages with the fastener to be fastened placed on the workpiece.

[0013] In this technical solution, the gripping component is defined as including a trigger and multiple mating claws. Specifically, the multiple mating claws are spaced apart on the trigger. When the trigger is activated, it can drive the multiple mating claws to move relative to the housing, so that the end of each mating claw facing away from the trigger extends out of the mounting cavity through the opening and engages with the fastener to be fastened placed on the workpiece. This allows the gripping component to hold the fastener, that is, to temporarily fix the fastener, effectively avoiding the problem of the fastener frequently falling off the workpiece during the assembly process, which affects the installation efficiency and improves the installation efficiency of the fastener.

[0014] At least a portion of the trigger is exposed in the mounting cavity, making it easy for the operator to press the trigger to perform the triggering operation, thus improving the operator's ease of use of the fastening device.

[0015] Optionally, multiple mating claws and triggers are integrated into a single structure.

[0016] In some technical solutions, optionally, each mating claw has a gripping part at one end away from the trigger member. When the end of each mating claw away from the trigger member extends out of the mounting cavity, multiple gripping parts abut against the fastener to be fastened along the moving direction of the trigger member.

[0017] In this technical solution, each mating claw is provided with a gripping part at one end away from the trigger. Specifically, when the end of each mating claw away from the trigger extends out of the mounting cavity, multiple gripping parts abut against the fastener to be fastened, thereby fixing the fastener. This effectively avoids the problem of the fastener frequently falling off the workpiece during the assembly process, which affects the installation efficiency and improves the installation efficiency of the fastener.

[0018] Optionally, the end of each mating claw away from the trigger is bent inward to form a gripping part.

[0019] In some technical solutions, the fastening device may optionally include a guide table, which is connected to the housing and located in the mounting cavity. Multiple guide channels are formed between the outer wall of the guide table and the inner wall of the housing. Each guide channel is connected to the mounting cavity and the opening, and multiple mating claws move in the multiple guide channels respectively.

[0020] In this technical solution, the fastening device is further defined as including a guide platform, specifically, the guide platform is connected to the housing. Multiple guide channels are formed between the outer wall of the guide platform and the inner wall of the housing. Each guide channel communicates with the mounting cavity and opening, and each mating claw moves within one guide channel, thereby defining the movement path of the mating claw and ensuring that the mating claw can extend or retract smoothly, further improving installation efficiency.

[0021] In some technical solutions, optionally, the outer wall of the guide platform is provided with multiple guide grooves, and multiple guide channels are formed between the multiple guide grooves and the inner wall of the outer shell.

[0022] In this technical solution, the outer wall of the guide platform is provided with multiple guide grooves, specifically, the multiple guide grooves are spaced apart. Each guide groove forms a guide channel with the inner wall of the housing, thereby defining the movement path of the mating claw, ensuring that the mating claw can extend or retract smoothly, and further improving installation efficiency.

[0023] In some technical solutions, optionally, the guide table includes a first end and a second end facing away from each other. The first end is closer to the opening than the second end, and the cross-sectional area of ​​the first end is smaller than that of the second end. During the movement of each mating claw in a guide channel, the distance between two adjacent mating claws can be changed. When the gripping component is in the first position, there is a first distance between two adjacent mating claws. When the gripping component is in the second position, there is a second distance between two adjacent mating claws. The second distance is greater than the first distance.

[0024] In this technical solution, the guide table includes a first end and a second end, wherein the first end and the second end are opposite to each other, and the first end is close to the opening. Specifically, the cross-sectional area of ​​the first end is smaller than the cross-sectional area of ​​the second end, that is, the guide table is a cone-shaped platform, so that when multiple mating claws move within the multiple guide channels formed between the outer wall of the guide table and the inner wall of the housing, the spacing between adjacent mating claws can be changed to achieve the fixing or separation of the fastener.

[0025] Specifically, when the trigger is activated, it drives multiple mating claws to move outward along multiple guide channels. When the end of the multiple mating claws that is away from the trigger extends out of the mounting cavity, the distance between two adjacent mating claws decreases in order to grip the fastener to be fastened.

[0026] When the fastener is subjected to force during installation and multiple mating claws move in opposite directions, the increased spacing between adjacent mating claws allows the multiple mating claws to quickly separate from the fastener, improving installation convenience.

[0027] Optionally, in some technical solutions, the trigger element is provided with a guide hole; the fastening device further includes a guide shaft, a limiting boss, and an elastic element. The guide shaft is located within the mounting cavity and is movably connected to the guide platform. The trigger element is sleeved on the guide shaft through the guide hole and can move relative to the guide shaft. The working piece is detachably connected to the guide shaft. The limiting boss is located on the outer wall of the guide shaft. The elastic element is located on the guide shaft and between the guide platform and the trigger element. When the gripping assembly is in the first position, the ends of multiple mating claws facing away from the trigger element are exposed in the mounting cavity. The trigger element abuts against the limiting boss and drives the guide shaft to move a set distance towards the opening side via the limiting boss. The elastic element deforms. When the working piece is under force, the working piece pushes the guide shaft to move away from the opening side. The guide shaft pushes the trigger element to move away from the opening side via the limiting boss. The multiple mating claws separate from the fastener to be fastened. The elastic element recovers its deformation and pushes the trigger element to move away from the opening direction, so that at least a portion of each mating claw retracts into the mounting cavity.

[0028] In this technical solution, the fastening device is further defined as including a guide shaft, a limiting boss, and an elastic element. Specifically, the guide shaft is disposed in the mounting cavity and is movably connected to the guide table.

[0029] The trigger is sleeved on the guide shaft through the guide hole, and the trigger can move relative to the guide shaft, thereby limiting the movement path of the trigger and preventing the trigger from deviating during movement, which would cause the multiple mating claws to be unable to extend smoothly out of the mounting cavity. This ensures that the multiple mating claws can fix the fasteners placed on the workpiece, thus improving installation efficiency.

[0030] The working parts are detachably connected to the guide shaft, allowing the operator to select different types of working parts for the installation and removal of fasteners according to actual needs.

[0031] The limiting boss is set on the outer wall of the guide shaft, the elastic element is sleeved on the guide shaft, and the elastic element is located between the guide platform and the trigger element.

[0032] Specifically, when it is necessary to install the fastener, the fastener is placed on the workpiece, and the trigger is pressed, causing the ends of the multiple mating claws away from the trigger to move out of the mounting cavity. The fastener is then secured by the gripping parts at the ends of the multiple mating claws to prevent it from falling off. At this time, the trigger abuts against the limiting boss, and the limiting boss drives the guide shaft and the workpiece to move outward a set distance, compressing the elastic element.

[0033] When the fastener to be fastened is placed in the installation position, the fastener is subjected to force and the force is transmitted to the working part, that is, the working part is subjected to force. The working part pushes the guide shaft, and the guide shaft pushes the trigger to move away from the exit side through the limiting boss. The movement of the trigger drives multiple mating claws to move, so that the gripping parts on the multiple mating claws are separated from the fastener to be fastened. At this time, the elastic force of the elastic element pushes the trigger to continue to move away from the exit side until it returns to the second position, realizing the process of removing the gripping component and automatically resetting.

[0034] Optionally, the elastic element includes a spring.

[0035] In some technical solutions, optionally, the guide table is also provided with a mounting hole, which is provided through the moving direction of the trigger element, and the end of the guide shaft near the working part is located in the mounting hole; the fastening device also includes a magnetic element, which is provided at the end of the guide shaft located in the mounting hole, and one end of the working part is located in the mounting hole and can be attracted or separated from the magnetic element magnetically, and the other end of the working part is exposed in the mounting cavity. The guide shaft can drive the working part to move in the mounting hole along the moving direction of the trigger element, and the guide table can drive the working part to rotate through the mounting hole.

[0036] In this technical solution, the guide table is also provided with a mounting hole. Specifically, the mounting hole is provided through the moving direction of the trigger, that is, one end of the mounting hole is connected to the mounting cavity and the other end is connected to the opening.

[0037] One end of the guide shaft near the workpiece extends into the mounting hole and can move within the mounting hole. One end of the workpiece is located in the mounting hole and is detachably connected to the guide shaft via a magnetic component. The other end of the workpiece protrudes from the mounting cavity. It can be understood that the guide shaft can drive the workpiece to move within the mounting hole along the moving direction of the trigger element, thereby enabling automatic reset of the gripping component.

[0038] Furthermore, by incorporating magnetic components, it facilitates the installation and disassembly of different types of workpieces with the guide shaft, allowing operators to select different types of workpieces for the installation and disassembly of fasteners according to actual needs.

[0039] Specifically, when it is necessary to install the fastener, the fastener is placed on the workpiece, and the trigger is pressed, causing the ends of the multiple mating claws away from the trigger to move out of the mounting cavity. The fastener is then secured by the gripping parts at the ends of the multiple mating claws to prevent it from falling off. At this time, the trigger abuts against the limiting boss, and the limiting boss drives the guide shaft and the workpiece to move outward a set distance, compressing the elastic element.

[0040] When the fastener to be fastened is placed in the installation position, the fastener is subjected to force and the force is transmitted to the working part. The working part pushes the guide shaft, and the guide shaft pushes the trigger to move away from the outlet side through the limiting boss. The movement of the trigger drives multiple mating claws to move, so that the gripping parts on the multiple mating claws are separated from the fastener to be fastened. At this time, the elastic force of the elastic element pushes the trigger to continue to move away from the outlet side until it returns to the second position.

[0041] Optionally, the workpiece can only move within the mounting hole along the moving direction of the trigger and cannot rotate relative to the mounting hole, thereby enabling the guide table to drive the workpiece to rotate.

[0042] Optionally, the cross-sectional shape of the mounting hole is a regular hexagon, and the outer wall of the workpiece is adapted to the shape of the mounting hole.

[0043] Optionally, there may be multiple working parts, of which at least two working parts are of different types. Any working part can be magnetically attracted to or separated from the magnetic component.

[0044] In some technical solutions, optionally, the housing includes a first housing and a second housing, a drive assembly is disposed in the second housing and connected to the first housing, the first housing is provided with a mounting cavity and an opening, a guide table is connected to the first housing, and the drive assembly can drive the first housing to rotate relative to the second housing, so that the first housing drives the working part to rotate through the guide table.

[0045] In this technical solution, the outer casing is defined as including a first casing and a second casing. Specifically, the drive assembly is disposed on the second casing, and the first casing is connected to the drive assembly. The guide table is connected to the first casing, meaning that under the drive of the drive assembly, the first casing can drive the guide table to rotate, thereby causing the guide table to drive the workpiece to rotate, realizing the power transmission process, and thus realizing the installation and removal of the fastener.

[0046] In some technical solutions, the first housing may optionally include a housing body and a transfer platform, wherein the housing body is provided with a mounting cavity and an opening, the guide platform is connected to the housing body, a portion of the transfer platform is disposed in the mounting cavity and connected to the inner wall of the housing body, and the drive assembly is connected to the transfer platform.

[0047] In this technical solution, the first housing is defined as including a housing body and a transfer platform. Specifically, the housing body is provided with an installation cavity and an opening, and the guide platform is connected to the housing body. Optionally, the guide platform is welded to the inner wall of the housing body to ensure the connection strength between the guide platform and the housing body.

[0048] Optionally, the shell body includes a first end and a second end facing away from each other. The first end has an opening, and the cross-sectional area of ​​the first end is smaller than the cross-sectional area of ​​the second end. In other words, the shell body is a conical cover, which is adapted to the structure of the guide platform.

[0049] The drive assembly is connected to the adapter, so that the adapter drives the guide table to rotate through the housing body under the drive of the drive assembly, thereby driving the workpiece to rotate, realizing the power transmission process, and thus realizing the installation and removal of the fasteners.

[0050] Optionally, the adapter is threadedly connected to the housing body.

[0051] In some technical solutions, optionally, the driving component includes a first button, a second button, and a driving member, wherein the driving member is electrically connected to the first button and the second button; when the first button is triggered, the driving member can drive the working part to rotate in a first direction, and when the second button is triggered, the driving member can drive the working part to rotate in a second direction, which is different from the first direction; the fastening device also includes a tail cap, a first mark, and a second mark, wherein the tail cap is located at one end of the housing away from the opening and is connected to the first button and the second button, and the first mark and the second mark are respectively located on the outer wall of the tail cap, the first mark is opposite to the first button, the second mark is opposite to the second button, and the first mark and the second mark are different.

[0052] In this technical solution, the driving component is defined as including a first button, a second button, and a driving element. Specifically, the driving element is electrically connected to the first and second buttons. Specifically, when the operator presses the first button, the first button is triggered, and the driving element drives the working part to rotate in a first direction to install the fastener. Optionally, the first direction is forward rotation. When the operator presses the second button, the second button is triggered, and the driving element drives the working part to rotate in a second direction to disassemble the fastener. Optionally, the second direction is reverse rotation.

[0053] The fastening device also includes a tail cap, a first mark, and a second mark. Specifically, the tail cap is located at one end of the housing away from the opening, and the tail cap is connected to the first button and the second button. By operating the tail cap at different positions, the first button or the second button can be triggered.

[0054] Furthermore, the tail cap can also protect the energy storage unit, the first button, and the second button inside the mounting cavity.

[0055] The first and second markings are respectively set on the outer wall of the tail cap, with the first marking opposite to the first button and the second marking opposite to the second button. This allows the operator to select whether the first or second button is triggered based on the markings, further improving the convenience of using the fastening device.

[0056] Optionally, the first and second markings are used to indicate the direction of rotation of the operator's workpiece, so that the operator can press the first or second button as needed.

[0057] Optionally, the first identifier is positive and the second identifier is negative.

[0058] Optionally, the tail cap is made of rubber.

[0059] In some technical solutions, optionally, the driving component includes an energy storage unit and a driving unit, wherein the energy storage unit is electrically connected to the first button and the second button, the driving unit is electrically connected to the energy storage unit, and the driving unit can drive the working part to rotate; the fastening device also includes a charging interface, which is located in the housing and exposed in the mounting cavity, and the charging interface is electrically connected to the energy storage unit.

[0060] In this technical solution, the driving component is defined as including an energy storage unit and a driving unit. Specifically, the energy storage unit is electrically connected to the first button and the second button, and the driving unit is electrically connected to the energy storage unit.

[0061] Specifically, when it is necessary to control the workpiece to rotate in the first direction, the operator presses the first button, which triggers the first button, and the energy storage unit supplies power to the drive unit, enabling the drive unit to drive the workpiece to rotate in the first direction.

[0062] When it is necessary to control the workpiece to rotate in the second direction, the operator presses the second button, which triggers the second button. The energy storage unit supplies power to the drive unit, enabling the drive unit to drive the workpiece to rotate in the second direction.

[0063] The charging interface is located on the outer casing and exposed in the mounting cavity. The energy storage unit can be charged through the charging interface, further improving the convenience of using the fastening device.

[0064] Optionally, the energy storage unit includes batteries.

[0065] Optionally, the drive unit includes a motor.

[0066] In some technical solutions, the housing may optionally have a movable hole that communicates with the mounting cavity, and a portion of the trigger element may be exposed through the movable hole into the mounting cavity and be able to move within the movable hole.

[0067] In this technical solution, the outer casing is provided with a movable hole. Specifically, the movable hole is connected to the mounting cavity. A part of the trigger is exposed in the mounting cavity through the movable hole, and the trigger can move within the movable hole. This allows the operator to press the part of the trigger exposed in the mounting cavity, thereby driving multiple mating claws to move relative to the mounting cavity. This causes the ends of the multiple mating claws away from the trigger to extend out of the mounting cavity through the opening and grip the fastener to be fastened, achieving temporary fixation of the fastener and preventing it from frequently falling off during installation, thus improving installation efficiency.

[0068] Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0069] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0070] Figure 1 One of the structural schematic diagrams of a fastening device according to an embodiment of the present invention is shown;

[0071] Figure 2 It shows Figure 1 An enlarged view of the fastening device in the illustrated embodiment at point A;

[0072] Figure 3 A second schematic diagram of the fastening device according to an embodiment of the present invention is shown;

[0073] Figure 4 A partial structural schematic diagram of a fastening device according to an embodiment of the present invention is shown;

[0074] Figure 5A third schematic diagram of the fastening device according to an embodiment of the present invention is shown;

[0075] Figure 6 A schematic diagram of the structure of a gripping component according to an embodiment of the present invention is shown;

[0076] Figure 7 A fourth schematic diagram of the fastening device according to an embodiment of the present invention is shown;

[0077] Figure 8 Fifth schematic diagram of a fastening device according to an embodiment of the present invention is shown;

[0078] Figure 9 A sixth schematic diagram of the fastening device according to an embodiment of the present invention is shown;

[0079] Figure 10 The seventh schematic diagram shows the structure of a fastening device according to an embodiment of the present invention.

[0080] in, Figures 1 to 10 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0081] 100 Fastening device, 110 Housing, 111 Mounting cavity, 112 Opening, 113 First housing, 114 Second housing, 115 Housing body, 116 Adapter, 117 Movable hole, 120 Working part, 130 Drive assembly, 131 First button, 132 Second button, 133 Drive component, 134 Energy storage unit, 135 Drive unit, 140 Gripping assembly, 141 Trigger, 142 Mating claw, 143 Gripping part, 144 Guide hole, 150 Guide platform, 151 Guide groove, 152 Mounting hole, 160 Guide channel, 170 Guide shaft, 180 Limiting boss, 190 Elastic component, 210 Magnetic component, 220 First mark, 230 Second mark, 240 Charging interface, 250 Tail cap. Detailed Implementation

[0082] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0083] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0084] The following reference Figures 1 to 10 To describe the fastening device 100 provided according to some embodiments of the present invention.

[0085] In one embodiment according to this application, such as Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown, a fastening device 100 is proposed, comprising: a housing 110 having a communicating mounting cavity 111 and an opening 112; a working member 120, at least a portion of which is exposed through the opening 112 into the mounting cavity 111; a drive assembly 130 disposed in the housing 110 and capable of driving the working member 120 to rotate; and a gripping assembly 140 movably disposed in the mounting cavity 111 and capable of moving between a first position and a second position; wherein, when the gripping assembly 140 is in the first position, a portion of the gripping assembly 140 extends out of the mounting cavity 111 through the opening 112 and engages with the fastener to be fastened placed on the working member 120; and when the gripping assembly 140 is in the second position, the gripping assembly 140 is separated from the fastener to be fastened, with at least a portion of the gripping assembly 140 located within the mounting cavity 111.

[0086] The fastening device 100 provided in this embodiment of the invention includes a housing 110, a working part 120, a driving assembly 130, and a gripping assembly 140. Specifically, the housing 110 is provided with a mounting cavity 111 and an opening 112, and the mounting cavity 111 and the opening 112 are in communication.

[0087] At least a portion of the working piece 120 is exposed through the mounting cavity 111 via the opening 112, allowing the fastener to be placed on the working piece 120. Optionally, the fastener includes screws, bolts, etc. The working piece 120 includes a fastening tool. Specifically, the working piece 120 is rotatable under the drive of the drive assembly 130, allowing the fastener to be installed and removed by rotating the working piece 120 when it is placed on the working piece 120.

[0088] The gripping component 140 is disposed within the mounting cavity 111 and is movable relative to the mounting cavity 111. The gripping component 140 can move between a first position and a second position. Specifically, when the gripping component 140 moves to the first position, a portion of the gripping component 140 extends out of the mounting cavity 111 through the opening 112. This extended portion of the gripping component 140 engages with the fastener to be fastened, which is placed on the working piece 120. This allows the gripping component 140 to hold the fastener, temporarily fixing it and effectively preventing the fastener from frequently falling off the working piece 120 during assembly, thus improving installation efficiency. Even for small screws or bolts, reliable fastening is achieved, improving the installation efficiency of the fastener.

[0089] Understandably, when the fastener to be fastened is placed in the installation position, the working part 120 drives the fastener to rotate through the drive component 130 to complete the installation of the fastener. During this process, the gripping component 140 separates from the fastener and retracts into the installation cavity 111, improving the ease of use of the fastening device 100.

[0090] By extending or retracting a portion of the gripping component 140 into the mounting cavity 111, it is possible to fix and separate the fastener from the fastener. This method is highly practical, has a simple structure, and is compact in size, making it suitable for use in confined installation environments and improving the user experience.

[0091] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, in some embodiments, optionally, the gripping assembly 140 includes a trigger 141 and a plurality of mating claws 142, wherein the trigger 141 is movably disposed on the housing 110 and at least partially exposed in the mounting cavity 111, and the plurality of mating claws 142 are spaced apart on the trigger 141; wherein, when the trigger 141 is triggered, the trigger 141 can drive the plurality of mating claws 142 to move relative to the housing 110, so that one end of each mating claw 142 facing away from the trigger 141 extends out of the mounting cavity 111 through the opening 112 and engages with the fastener to be fastened placed on the working piece 120.

[0092] In this embodiment, the gripping component 140 includes a trigger 141 and a plurality of mating claws 142. Specifically, the plurality of mating claws 142 are spaced apart on the trigger 141. When the trigger 141 is triggered, it can drive the plurality of mating claws 142 to move relative to the housing 110, so that the end of each mating claw 142 facing away from the trigger 141 extends out of the mounting cavity 111 through the opening 112 and engages with the fastener to be fastened placed on the working part 120. This allows the gripping component 140 to hold the fastener to be fastened, that is, to temporarily fix the fastener to be fastened, effectively avoiding the problem that the fastener to be fastened is prone to falling off the working part 120 frequently during the assembly process, which affects the installation efficiency and improves the installation efficiency of the fastener to be fastened.

[0093] At least a portion of the trigger 141 is exposed in the mounting cavity 111, which makes it easy for the operator to press the trigger 141 to perform the triggering operation, thereby improving the operator's ease of use of the fastening device 100.

[0094] Optionally, the multiple mating claws 142 and the trigger element 141 are integrated into one structure.

[0095] like Figure 4 and Figure 6 As shown, in some embodiments, optionally, each mating claw 142 has a gripping part 143 at one end away from the trigger member 141. When the end of each mating claw 142 away from the trigger member 141 extends out of the mounting cavity 111, the multiple gripping parts 143 abut against the fastener to be fastened along the moving direction of the trigger member 141.

[0096] In this embodiment, each mating claw 142 is provided with a gripping part 143 at one end away from the trigger member 141. Specifically, when the end of each mating claw 142 away from the trigger member 141 extends out of the mounting cavity 111, the multiple gripping parts 143 abut against the fastener to be fastened, thereby fixing the fastener to be fastened. This effectively avoids the problem of the fastener to be fastened frequently falling off the workpiece 120 during the assembly process, which affects the installation efficiency and improves the installation efficiency of the fastener to be fastened.

[0097] Optionally, each mating claw 142 is bent inward at the end opposite to the trigger 141 to form a gripping part 143.

[0098] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in some embodiments, the fastening device 100 may optionally include a guide platform 150, which is connected to the housing 110 and located in the mounting cavity 111. A plurality of guide channels 160 are formed between the outer wall of the guide platform 150 and the inner wall of the housing 110. Each guide channel 160 communicates with the mounting cavity 111 and the opening 112. A plurality of mating claws 142 move within the plurality of guide channels 160 respectively.

[0099] In this embodiment, the fastening device 100 further includes a guide platform 150, which is specifically connected to the housing 110. A plurality of guide channels 160 are formed between the outer wall of the guide platform 150 and the inner wall of the housing 110. Each guide channel 160 communicates with the mounting cavity 111 and the opening 112. Each mating claw 142 moves within a guide channel 160, thereby defining the movement path of the mating claw 142 and ensuring that the mating claw 142 can extend or retract smoothly, further improving installation efficiency.

[0100] like Figure 5 As shown, in some embodiments, optionally, the outer wall of the guide platform 150 is provided with a plurality of guide grooves 151, and a plurality of guide channels 160 are formed between the plurality of guide grooves 151 and the inner wall of the outer casing 110.

[0101] In this embodiment, the outer wall of the guide platform 150 is provided with a plurality of guide grooves 151, specifically, the plurality of guide grooves 151 are spaced apart. Each guide groove 151 forms a guide channel 160 with the inner wall of the housing 110, thereby defining the movement path of the mating claw 142, ensuring that the mating claw 142 can extend or retract smoothly, and further improving installation efficiency.

[0102] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, optionally, the guide platform 150 includes a first end and a second end facing away from each other. The first end is closer to the opening 112 than the second end, and the cross-sectional area of ​​the first end is smaller than that of the second end. During the movement of each mating claw 142 within a guide channel 160, the distance between two adjacent mating claws 142 can be changed. Specifically, when the gripping component 140 is in the first position, there is a first distance between two adjacent mating claws 142, and when the gripping component 140 is in the second position, there is a second distance between two adjacent mating claws 142, and the second distance is greater than the first distance.

[0103] In this embodiment, the guide platform 150 includes a first end and a second end, wherein the first end and the second end are opposite to each other, and the first end is close to the opening 112. Specifically, the cross-sectional area of ​​the first end is smaller than the cross-sectional area of ​​the second end, that is, the guide platform 150 is a truncated cone, so that when the multiple mating claws 142 move within the multiple guide channels 160 formed between the outer wall of the guide platform 150 and the inner wall of the housing 110, the spacing between adjacent mating claws 142 can be changed to achieve the fixing or separation of the fastener.

[0104] Specifically, when the trigger 141 is triggered, the trigger 141 drives multiple mating claws 142 to move outward along multiple guide channels 160 respectively. When the end of the multiple mating claws 142 that is away from the trigger 141 extends out of the mounting cavity 111, the distance between two adjacent mating claws 142 decreases so as to grip the fastener to be fastened.

[0105] When the fastener to be installed is subjected to force and the multiple mating claws 142 move in the opposite direction, the increased spacing between adjacent mating claws 142 allows the multiple mating claws 142 to quickly separate from the fastener to be installed, improving installation convenience.

[0106] like Figure 6 As shown, in some embodiments, optionally, the trigger 141 is provided with a guide hole 144; the fastening device 100 also includes a guide shaft 170, a limiting boss 180, and an elastic member 190, wherein the guide shaft 170 is disposed in the mounting cavity 111 and is movably connected to the guide platform 150, the trigger 141 is sleeved on the guide shaft 170 through the guide hole 144 and is movable relative to the guide shaft 170, the working piece 120 is detachably connected to the guide shaft 170, the limiting boss 180 is disposed on the outer wall of the guide shaft 170, and the elastic member 190 is disposed on the guide shaft 170 and located between the guide platform 150 and the trigger 141; when the gripping assembly 140 is in the first position, the multiple mating claws 142 back One end of the trigger 141 is exposed in the mounting cavity 111. The trigger 141 abuts against the limiting boss 180 and drives the guide shaft 170 to move a set distance to one side of the opening 112 through the limiting boss 180. The elastic member 190 deforms. When the working member 120 is under force, the working member 120 pushes the guide shaft 170 to move away from the opening 112. The guide shaft 170 pushes the trigger 141 to move away from the opening 112 through the limiting boss 180. Multiple mating claws 142 separate from the fastener to be fastened. The elastic member 190 restores its deformation and pushes the trigger 141 to move away from the opening 112, so that at least a part of each mating claw 142 retracts into the mounting cavity 111.

[0107] In this embodiment, the fastening device 100 is further defined as including a guide shaft 170, a limiting boss 180, and an elastic element 190. Specifically, the guide shaft 170 is disposed in the mounting cavity 111 and is movably connected to the guide table 150.

[0108] The trigger 141 is sleeved on the guide shaft 170 through the guide hole 144, and the trigger 141 can move relative to the guide shaft 170, thereby limiting the movement path of the trigger 141 and preventing the trigger 141 from deviating during movement, which would cause the multiple mating claws 142 to be unable to extend smoothly out of the mounting cavity 111. This ensures that the multiple mating claws 142 can fix the fasteners placed on the working piece 120, thereby improving the installation efficiency.

[0109] The working part 120 is detachably connected to the guide shaft 170, allowing the operator to select different types of working parts 120 for the installation and removal of fasteners according to actual needs.

[0110] The limiting boss 180 is provided on the outer wall of the guide shaft 170, the elastic element 190 is sleeved on the guide shaft 170, and the elastic element 190 is located between the guide table 150 and the trigger element 141.

[0111] Specifically, when it is necessary to install the fastener, the fastener is placed on the working piece 120, and the trigger 141 is pressed, causing the ends of the multiple mating claws 142 away from the trigger 141 to move out of the mounting cavity 111. The fastener is then fixed by the gripping parts 143 at the ends of the multiple mating claws 142 to prevent it from falling off. At this time, the trigger 141 abuts against the limiting boss 180, and the limiting boss 180 drives the guide shaft 170 and the working piece 120 to move outward by a set distance, compressing the elastic element 190.

[0112] When the fastener to be fastened is placed in the installation position, the fastener is subjected to force and the force is transmitted to the working part 120. That is, the working part 120 is subjected to force, and the working part 120 pushes the guide shaft 170. The guide shaft 170 pushes the trigger 141 to move away from the exit 112 through the limiting boss 180. The movement of the trigger 141 drives the multiple mating claws 142 to move, so that the gripping parts 143 on the multiple mating claws 142 are separated from the fastener to be fastened. At this time, the elastic force of the elastic member 190 pushes the trigger 141 to continue to move away from the exit 112 until it returns to the second position, realizing the process of the gripping component 140 being removed and automatically reset.

[0113] Optionally, the elastic element 190 includes a spring.

[0114] Optionally, the set distance can range from 0.5mm to 2mm, specifically, the set distance is 1mm.

[0115] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, optionally, the guide table 150 is also provided with a mounting hole 152, which is provided through the moving direction of the trigger 141. The end of the guide shaft 170 near the working piece 120 is located in the mounting hole 152. The fastening device 100 also includes a magnetic element 210, which is provided at the end of the guide shaft 170 located in the mounting hole 152. One end of the working piece 120 is located in the mounting hole 152 and can be magnetically attracted or separated from the magnetic element 210. The other end of the working piece 120 is exposed in the mounting cavity 111. The guide shaft 170 can drive the working piece 120 to move in the mounting hole 152 along the moving direction of the trigger 141. The guide table 150 can drive the working piece 120 to rotate through the mounting hole 152.

[0116] In this embodiment, the guide table 150 is further provided with a mounting hole 152. Specifically, the mounting hole 152 is provided through the moving direction of the trigger member 141. That is, one end of the mounting hole 152 is connected to the mounting cavity 111, and the other end is connected to the opening 112.

[0117] One end of the guide shaft 170 near the working piece 120 extends into the mounting hole 152 and is movable within the mounting hole 152. One end of the working piece 120 is located within the mounting hole 152 and is detachably connected to the guide shaft 170 via a magnetic element 210. The other end of the working piece 120 protrudes from the mounting cavity 111. It can be understood that the guide shaft 170 can drive the working piece 120 to move within the mounting hole 152 along the moving direction of the trigger element 141, thereby enabling the automatic reset of the gripping assembly 140.

[0118] Furthermore, by providing the magnetic component 210, it is convenient to install and remove different types of workpieces 120 from the guide shaft 170, thereby allowing the operator to select different types of workpieces 120 for the installation and removal of fasteners according to actual needs.

[0119] Specifically, when it is necessary to install the fastener, the fastener is placed on the working piece 120, and the trigger 141 is pressed, causing the ends of the multiple mating claws 142 away from the trigger 141 to move out of the mounting cavity 111. The fastener is then fixed by the gripping parts 143 at the ends of the multiple mating claws 142 to prevent it from falling off. At this time, the trigger 141 abuts against the limiting boss 180, and the limiting boss 180 drives the guide shaft 170 and the working piece 120 to move outward by a set distance, compressing the elastic element 190.

[0120] When the fastener to be fastened is placed in the installation position, the fastener is subjected to force and the force is transmitted to the working part 120. The working part 120 pushes the guide shaft 170. The guide shaft 170 pushes the trigger 141 to move away from the exit 112 side through the limiting boss 180. The trigger 141 moves and drives multiple mating claws 142 to move, so that the gripping parts 143 on the multiple mating claws 142 are separated from the fastener to be fastened. At this time, the elastic force of the elastic member 190 pushes the trigger 141 to continue to move away from the exit 112 side until it returns to the second position.

[0121] Optionally, the workpiece 120 can only move within the mounting hole 152 along the moving direction of the trigger 141, and cannot rotate relative to the mounting hole 152, so that the guide table 150 can drive the workpiece 120 to rotate.

[0122] Optionally, the cross-sectional shape of the mounting hole 152 is a regular hexagon, and the outer wall of the working part 120 is adapted to the shape of the mounting hole 152.

[0123] Optionally, there may be multiple working parts 120, of which at least two working parts 120 may be of different types. Any working part 120 may be magnetically attracted to or separated from the magnetic part 210.

[0124] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown, in some embodiments, optionally, the outer casing 110 includes a first casing 113 and a second casing 114. A drive assembly 130 is disposed in the second casing 114 and connected to the first casing 113. The first casing 113 is provided with a mounting cavity 111 and an opening 112. A guide table 150 is connected to the first casing 113. The drive assembly 130 can drive the first casing 113 to rotate relative to the second casing 114, so that the first casing 113 drives the working part 120 to rotate through the guide table 150.

[0125] In this embodiment, the outer casing 110 is defined as including a first casing 113 and a second casing 114. Specifically, a drive assembly 130 is disposed on the second casing 114, and the first casing 113 is connected to the drive assembly 130. The guide platform 150 is connected to the first casing 113. That is, under the drive of the drive assembly 130, the first casing 113 can drive the guide platform 150 to rotate, thereby causing the guide platform 150 to drive the working part 120 to rotate, realizing the power transmission process, and thus realizing the installation and removal of the fastener.

[0126] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, optionally, the first housing 113 includes a housing body 115 and a transition platform 116, wherein the housing body 115 is provided with a mounting cavity 111 and an opening 112, the guide platform 150 is connected to the housing body 115, a portion of the transition platform 116 is disposed in the mounting cavity 111 and connected to the inner wall of the housing body 115, and the drive assembly 130 is connected to the transition platform 116.

[0127] In this embodiment, the first housing 113 is defined as including a housing body 115 and a transition platform 116. Specifically, the housing body 115 is provided with a mounting cavity 111 and an opening 112. The guide platform 150 is connected to the housing body 115. Optionally, the guide platform 150 is welded to the inner wall of the housing body 115 to ensure the connection strength between the guide platform 150 and the housing body 115.

[0128] Optionally, the shell body 115 includes a first end and a second end facing away from each other. The first end is provided with an opening 112. The cross-sectional area of ​​the first end is smaller than the cross-sectional area of ​​the second end. That is, the shell body 115 is a conical cover, which is adapted to the structure of the guide platform 150.

[0129] The drive assembly 130 is connected to the adapter 116, so that under the drive of the drive assembly 130, the adapter 116 drives the guide table 150 to rotate through the housing body 115, thereby driving the working part 120 to rotate, realizing the power transmission process, and thus realizing the installation and disassembly of the fastener.

[0130] Optionally, the adapter 116 is threadedly connected to the housing body 115.

[0131] like Figure 5 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, in some embodiments, optionally, the drive assembly 130 includes a first button 131, a second button 132, and a drive member 133, wherein the drive member 133 is electrically connected to the first button 131 and the second button 132; when the first button 131 is triggered, the drive member 133 can drive the working part 120 to rotate in a first direction, and when the second button 132 is triggered, the drive member 133 can drive the working part 120 to rotate in a second direction, which is different from the first direction; the fastening device 100 also includes a tail cap 250, a first mark 220, and a second mark 230, wherein the tail cap 250 is disposed at one end of the housing 110 away from the opening 112 and is connected to the first button 131 and the second button 132, the first mark 220 and the second mark 230 are respectively disposed on the outer wall of the tail cap 250, the first mark 220 is opposite to the first button 131, the second mark 230 is opposite to the second button 132, and the first mark 220 and the second mark 230 are different.

[0132] In this embodiment, the drive assembly 130 is defined as including a first button 131, a second button 132, and a drive member 133. Specifically, the drive member 133 is electrically connected to the first button 131 and the second button 132. Specifically, when the operator presses the first button 131, the first button 131 is triggered, and the drive member 133 drives the working part 120 to rotate in a first direction to install the fastener. Optionally, the first direction is forward rotation. When the operator presses the second button 132, the second button 132 is triggered, and the drive member 133 drives the working part 120 to rotate in a second direction to disassemble the fastener. Optionally, the second direction is reverse rotation.

[0133] The fastening device 100 also includes a tail cap 250, a first mark 220 and a second mark 230. Specifically, the tail cap 250 is located at one end of the housing 110 away from the opening 112, and the tail cap 250 is connected to the first button 131 and the second button 132. By operating the tail cap 250 at different positions, the first button 131 or the second button 132 can be triggered.

[0134] Furthermore, the tail cap 250 can also protect the energy storage unit 134, the first button 131, and the second button 132 inside the mounting cavity 111.

[0135] The first mark 220 and the second mark 230 are respectively disposed on the outer wall of the tail cap 250, and the first mark 220 is opposite to the first button 131, and the second mark 230 is opposite to the second button 132. Thus, the first button 131 or the second button 132 can be triggered according to the mark, thereby further improving the convenience of the operator in using the fastening device 100.

[0136] Optionally, the first mark 220 and the second mark 230 are used to indicate the rotation direction of the operator's workpiece 120, so that the operator can press the first button 131 or the second button 132 as needed.

[0137] Optionally, the first identifier 220 is positive and the second identifier 230 is negative.

[0138] Optionally, the tail cap 250 is made of rubber.

[0139] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, optionally, the driving member 133 includes an energy storage part 134 and a driving part 135, wherein the energy storage part 134 is electrically connected to the first button 131 and the second button 132, and the driving part 135 is electrically connected to the energy storage part 134, and the driving part 135 can drive the working part 120 to rotate; the fastening device 100 also includes a charging interface 240, which is disposed in the housing 110 and exposed in the mounting cavity 111, and the charging interface 240 is electrically connected to the energy storage part 134.

[0140] In this embodiment, the driving member 133 is defined to include an energy storage unit 134 and a driving unit 135. Specifically, the energy storage unit 134 is electrically connected to the first button 131 and the second button 132, and the driving unit 135 is electrically connected to the energy storage unit 134.

[0141] Specifically, when it is necessary to control the workpiece 120 to rotate in the first direction, the operator presses the first button 131, which triggers the first button 131. The energy storage unit 134 supplies power to the drive unit 135, enabling the drive unit 135 to drive the workpiece 120 to rotate in the first direction.

[0142] When it is necessary to control the workpiece 120 to rotate in the second direction, the operator presses the second button 132, which triggers the second button 132. The energy storage unit 134 supplies power to the drive unit 135, enabling the drive unit 135 to drive the workpiece 120 to rotate in the second direction.

[0143] The charging interface 240 is located on the housing 110 and exposed in the mounting cavity 111. The energy storage unit 134 can be charged through the charging interface 240, further improving the ease of use of the fastening device 100.

[0144] Optionally, the energy storage unit 134 includes a battery.

[0145] Optionally, the drive unit 135 includes a motor.

[0146] Optionally, the adapter 116 is provided with a through hole, and a portion of the drive unit 135 passes through the through hole and extends into the mounting cavity 111. The fastening device 100 also includes a first retaining ring, which is disposed on the portion of the drive unit 135 extending into the mounting cavity 111 and abuts against the side of the adapter 116 facing the mounting cavity 111, thereby connecting the drive unit 135 to the adapter 116. By providing the first retaining ring, the adapter 116 can be limited.

[0147] Optionally, the fastening device 100 further includes a second retaining ring, which is disposed at one end of the guide shaft 170 opposite to the outlet 112 and located on the side of the trigger 141 opposite to the outlet 112, thereby enabling the trigger 141 to be limited.

[0148] Optionally, the first retaining ring includes a C-type retaining ring, and the second retaining ring includes a C-type retaining ring.

[0149] like Figure 5 and Figure 8 As shown, in some embodiments, optionally, the housing 110 is provided with a movable hole 117, which communicates with the mounting cavity 111. A portion of the trigger 141 is exposed through the movable hole 117 to the mounting cavity 111 and is able to move within the movable hole 117.

[0150] In this embodiment, the outer casing 110 is provided with a movable hole 117. Specifically, the movable hole 117 communicates with the mounting cavity 111. A portion of the trigger 141 is exposed in the mounting cavity 111 through the movable hole 117, and the trigger 141 can move within the movable hole 117. This allows the operator to press the portion of the trigger 141 exposed in the mounting cavity 111, thereby causing multiple mating claws 142 to move relative to the mounting cavity 111. This allows the ends of the multiple mating claws 142 facing away from the trigger 141 to extend out of the mounting cavity 111 through the opening 112 and grip the fastener to be fastened, achieving temporary fixation of the fastener and preventing it from frequently falling off during installation, thus improving installation efficiency.

[0151] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0152] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0153] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fastening device, characterized in that, include: The housing has a communicating mounting cavity and an opening; A working part, at least a portion of which is exposed in the mounting cavity through the opening; A drive assembly is disposed in the housing, and the drive assembly is capable of driving the working part to rotate; A gripping component is movably disposed in the mounting cavity, and the gripping component is movable between a first position and a second position; Wherein, when the gripping component is in the first position, a portion of the gripping component extends out of the mounting cavity through the opening and engages with the fastener to be fastened placed on the workpiece; When the gripping component is in the second position, the gripping component is separated from the fastener to be fastened, and at least a portion of the gripping component is located within the mounting cavity; The crawling component includes: A trigger element is movably disposed on the housing and at least partially exposed in the mounting cavity; Multiple cooperating claws are spaced apart on the trigger element; When the trigger is triggered, the trigger can drive multiple mating claws to move relative to the housing, so that the end of each mating claw away from the trigger extends out of the mounting cavity through the opening and mates with the fastener to be fastened placed on the workpiece; The fastening device further includes: A guide platform is connected to the housing and located within the mounting cavity. Multiple guide channels are formed between the outer wall of the guide platform and the inner wall of the housing. Each guide channel communicates with the mounting cavity and the opening. Multiple mating claws move within the multiple guide channels respectively. The trigger element is provided with a guide hole; The fastening device further includes: A guide shaft is disposed within the mounting cavity and movably connected to the guide platform. The trigger element is sleeved on the guide shaft through the guide hole and is movable relative to the guide shaft. The working part is detachably connected to the guide shaft. There are multiple working parts, and at least two working parts are of different types. A limiting boss is provided on the outer wall of the guide shaft; An elastic element is disposed on the guide shaft and located between the guide platform and the trigger element; When the gripping component is in the first position, the ends of the multiple mating claws that are away from the trigger are exposed in the mounting cavity. The trigger abuts against the limiting boss and drives the guide axis to move a set distance to one side of the opening through the limiting boss, and the elastic element deforms. When the working part is subjected to force, the working part pushes the guide shaft to move away from the opening. The guide shaft pushes the trigger to move away from the opening through the limiting boss. The plurality of mating claws separate from the fastener to be fastened. The elastic element restores its deformation and pushes the trigger to move away from the opening, so that at least a portion of each mating claw retracts into the mounting cavity.

2. The fastening device according to claim 1, characterized in that, Each of the mating claws has a gripping part at one end away from the trigger member. When the end of each mating claw away from the trigger member extends out of the mounting cavity, the multiple gripping parts abut against the fastener to be fastened along the moving direction of the trigger member.

3. The fastening device according to claim 1, characterized in that, The outer wall of the guide platform is provided with multiple guide grooves, and multiple guide channels are formed between the multiple guide grooves and the inner wall of the outer shell.

4. The fastening device according to claim 1, characterized in that, The guide platform includes a first end and a second end facing away from each other. The first end is closer to the opening than the second end. The cross-sectional area of ​​the first end is smaller than that of the second end. During the movement of each mating claw in a guide channel, the distance between two adjacent mating claws can be changed. Wherein, when the gripping component is in the first position, there is a first gap between two adjacent mating claws, and when the gripping component is in the second position, there is a second gap between two adjacent mating claws, the second gap being greater than the first gap.

5. The fastening device according to claim 1, characterized in that, The guide table is also provided with a mounting hole, which is provided through the moving direction of the trigger and located on the radial inner side of the guide channel. The end of the guide shaft near the working part is located in the mounting hole. The fastening device further includes: A magnetic component is disposed at one end of the guide shaft located within the mounting hole. One end of the working piece is located within the mounting hole and can be magnetically attracted or separated from the magnetic component. The other end of the working piece is exposed outside the mounting cavity. The guide shaft can drive the working piece to move within the mounting hole along the moving direction of the trigger. The guide platform can drive the working piece to rotate through the mounting hole.

6. The fastening device according to claim 1, characterized in that, The housing includes a first housing and a second housing. The drive assembly is disposed in the second housing and connected to the first housing. The first housing has the mounting cavity and the opening. The guide platform is connected to the first housing. The drive assembly can drive the first housing to rotate relative to the second housing, so that the first housing drives the workpiece to rotate through the guide platform.

7. The fastening device according to claim 6, characterized in that, The first housing includes: The shell body has the mounting cavity and the opening, and the guide platform is connected to the shell body; A transfer platform, a portion of which is located within the mounting cavity and connected to the inner wall of the housing body, and the drive assembly is connected to the transfer platform.

8. The fastening device according to any one of claims 1 to 7, characterized in that, The driving component includes: First button and second button; A driving component, electrically connected to the first button and the second button; When the first button is triggered, the driving component can drive the working part to rotate in a first direction; when the second button is triggered, the driving component can drive the working part to rotate in a second direction, which is different from the first direction. The fastening device further includes: A tail cap is located at the end of the outer casing opposite to the opening and is connected to the first button and the second button; A first identifier and a second identifier are respectively disposed on the outer wall of the tail cap. The first identifier is opposite to the first button, and the second identifier is opposite to the second button. The first identifier and the second identifier are different.

9. The fastening device according to claim 8, characterized in that, The driving component includes: The energy storage unit is electrically connected to the first button and the second button; A drive unit is electrically connected to the energy storage unit, and the drive unit is capable of driving the working part to rotate. The fastening device further includes: A charging interface is located in the housing and exposed in the mounting cavity, and the charging interface is electrically connected to the energy storage unit.

10. The fastening device according to any one of claims 1 to 7, characterized in that, The housing is provided with a movable hole, which communicates with the mounting cavity. A portion of the trigger is exposed in the mounting cavity through the movable hole and is able to move within the movable hole.

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