Fastening tool

Abstract

The application discloses a fastening tool, which belongs to the field of electric tools and comprises a shell, a cartridge, a striking assembly, a trigger assembly and a brake assembly. The shell is formed with an accommodating space. The cartridge accommodates fasteners. The striking assembly is accommodated in the accommodating space. The striking assembly comprises a striker which is arranged to move in a striking direction to output a striking force to the fasteners. The trigger assembly is arranged to trigger a first switch. The trigger assembly comprises a first state in which the first switch is not triggered. When the first switch is not triggered, the striker does not output the striking force. The brake assembly comprises a locked state in which the striker is prevented from moving in the striking direction. In response to the trigger assembly being switched to the first state, the brake assembly is switched to the locked state. By arranging the brake assembly, the striker cannot be accidentally moved in the striking direction, so that the fastening tool is more stable and safer.

Description

Technical Field

[0001] This application relates to the field of power tools, and more particularly to a fastening tool. Background Technology

[0002] Nail guns are commonly used screw fastening tools. In existing nail guns, a rack is usually set on the firing pin, and a drive motor is connected to a gear. The drive motor drives the gear to rotate. Since the rack and gear mesh with each other, the rack moves as the gear rotates, thus moving the firing pin.

[0003] The gear has a toothless notch. When the gear rotates to the point where the notch engages with the firing pin, the power spring or air pressure will push the firing pin out to drive the nail. When the edge of the notch on the gear is exactly in contact with the teeth of the firing pin's rack, the nail gun may vibrate or be impacted, causing the teeth to dislodge and the firing pin to fall unexpectedly. If there are nails in the magazine, the nails will be fired; if there are no nails, the firing pin will protrude. Summary of the Invention

[0004] The purpose of this application is to provide a fastening tool to solve the technical problem of safety hazards caused by the accidental falling of the firing pin in the prior art.

[0005] Based on the above concept, the technical solution adopted in this application is:

[0006] A fastening tool, comprising:

[0007] The shell forms a space for containment;

[0008] Magazine, which holds fasteners;

[0009] A striking component is housed in the receiving space, the striking component including a striking pin configured to move in a striking direction to output a striking force to the fastener;

[0010] The fastening tool also includes:

[0011] A triggering component is configured to trigger a first switch. The triggering component includes a first state in which the first switch is not triggered. When the first switch is not triggered, the striking pin does not output a striking force.

[0012] A braking assembly, the braking assembly including a locking state that prevents the firing pin from moving in the striking direction;

[0013] In response to the triggering component switching to the first state, the braking component switches to the locked state.

[0014] The triggering component includes a second state that triggers the first switch, and the braking component includes a release state that allows the firing pin to move along the striking direction. When the triggering component switches to the second state, the braking component switches to the release state.

[0015] The triggering component is linked to the braking component.

[0016] The braking assembly includes a pawl, which is rotatably connected to the housing. The pawl is rotatable between a locked position and a released position. When the pawl is in the locked position, it can engage with the power teeth on the striker.

[0017] The triggering component includes a trigger rod that is slidably connected to the housing. The trigger rod can move between a first position and a second position to drive the pawl to rotate. When the trigger rod is in the first position, it does not trigger the first switch.

[0018] The braking assembly further includes a push rod, which is slidably connected to the housing, and the movement of the trigger rod can drive the push rod to move.

[0019] The pawl is provided with a guide post, and the end of the push rod is provided with a guide ramp. The movement of the push rod can cause the guide ramp to abut against the guide post, so that the guide post moves along the guide ramp, and the movement of the guide post causes the pawl to rotate.

[0020] The push rod is provided with a limiting groove, and the guide post can move along the guide inclined surface into the limiting groove.

[0021] The trigger lever is configured to move along a first straight line, and the push lever is configured to move substantially parallel to the first straight line.

[0022] The braking assembly further includes an assisting elastic element, which is configured to apply an elastic force to the pawl during the movement of the pawl, causing the pawl to move away from the locked position.

[0023] The braking assembly further includes a braking elastic element disposed between the pawl and the housing, the braking elastic element providing a spring force to the pawl to bias the pawl to the locked position.

[0024] The triggering component further includes a triggering elastic element, which is disposed between the triggering rod and the housing. The triggering elastic element can drive the triggering rod to reset to the first position.

[0025] The first switch includes a magnet and a Hall element. One of the magnet and the Hall element is disposed on the trigger rod, and the other is disposed on the housing. The trigger rod moves to cause the Hall element to generate a sensing signal.

[0026] A fastening tool, comprising:

[0027] The shell forms a space for containment;

[0028] Magazine, which holds fasteners;

[0029] A striking component is housed in the receiving space, the striking component including a striking pin configured to move in a striking direction to output a striking force to the fastener;

[0030] The fastening tool also includes:

[0031] The triggering component is configured to trigger a first switch. The triggering component includes a first state in which the first switch is not triggered and a second state in which the first switch is triggered. When the first switch is not triggered, the striking pin does not output a striking force.

[0032] A braking assembly, the braking assembly including a locked state that prevents the firing pin from moving in the impact direction and a released state that allows the firing pin to move in the impact direction;

[0033] The triggering component drives the braking component to move.

[0034] The beneficial effects of this application are:

[0035] The fastening tool proposed in this application, when the triggering component is in the first state, the first switch is not triggered, the firing pin does not output striking force, and the braking component is in a locked state, preventing the firing pin from moving in the striking direction and thus preventing the firing pin from falling accidentally. By setting the braking component, the firing pin is prevented from moving accidentally in the striking direction, making it more stable and safer. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of a fastening tool provided in one embodiment of this application;

[0037] Figure 2 yes Figure 1 A cross-sectional view of the provided fastening tool;

[0038] Figure 3 yes Figure 1 Schematic diagram of the provided fastening tool with the pawl in the released position. Figure 1 ;

[0039] Figure 4 yes Figure 3 Top view;

[0040] Figure 5 yes Figure 1 The circuit diagram of the provided fastening tool;

[0041] Figure 6 yes Figure 1 A top view of the provided fastening tool with its pawl in the locked position;

[0042] Figure 7 yes Figure 6 Partial structural diagram;

[0043] Figure 8 yes Figure 7 Top view;

[0044] Figure 9 yes Figure 1 A schematic diagram of the braking assembly of the provided fastening tool;

[0045] Figure 10 yes Figure 1 A schematic diagram of the push rod of the provided fastening tool;

[0046] Figure 11 yes Figure 1 Schematic diagram of the provided fastening tool with the pawl in the released position. Figure 2 ;

[0047] Figure 12 yes Figure 11 Top view;

[0048] Figure 13 yes Figure 11 Partial structural diagram;

[0049] Figure 14 yes Figure 13 Top view;

[0050] Figure 15 This is a front view of a portion of the structure of a fastening tool provided in another embodiment of this application;

[0051] Figure 16 yes Figure 15 Side view;

[0052] Figure 17 yes Figure 15 A schematic diagram of the provided fastening tool with its pawl in the locked position;

[0053] Figure 18 yes Figure 15 A schematic diagram of the provided fastening tool with its pawl in the released position;

[0054] Figure 19 yes Figure 15 The circuit diagram of the provided fastening tool.

[0055] In the picture:

[0056] 10. Housing; 11. Handle;

[0057] 20. Magazine;

[0058] 30. Battery pack;

[0059] 40. Striking assembly; 41. Strike pin; 411. Power gear;

[0060] 50. Trigger assembly; 51. Trigger lever; 52. Trigger elastic element; 53. Trigger plate;

[0061] 60. Braking assembly; 61. Pawl; 611. Limiting protrusion; 62. Braking elastic element; 63. Rotating shaft; 64. Push rod; 641. Guide ramp; 642. Guide groove; 643. Groove; 644. Limiting groove; 65. Guide post; 66. Limiting post;

[0062] 70. First switch; 71. Magnet; 72. Hall element;

[0063] 80. Power take-off unit;

[0064] 90. Drive mechanism; 91. Motor; 92. Gear;

[0065] 101. Drive circuit; 102. Controller;

[0066] 200. Solenoid; 201. Telescopic rod; 202. Connecting rod; 203. First axis; 204. Support base; 205. First plane. Detailed Implementation

[0067] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0068] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0069] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0070] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0071] See Figures 1 to 14 This embodiment provides a fastening tool capable of generating an impact force on a fastener, thereby driving the fastener into a workpiece. The fastening tool includes a housing 10 and a magazine 20. The housing 10 forms a receiving space, and the magazine 20 is used to receive the fastener. The magazine 20 is disposed on the outside of the housing 10. Figure 1 and Figure 2 As indicated by the middle arrow, the magazine 20 is located at the front end of the housing 10. The fastening tool provided in this embodiment is a nail gun, and the fastener is a nail. The housing 10 also has a handle 11 for the user to grip, and a main switch is provided on the handle 11, allowing the user to control the start and stop of the fastening tool. One end of the handle 11 is connected to a power interface for connecting to DC or AC power. In this embodiment, the power interface is connected to a battery pack 30.

[0072] like Figures 1 to 3 As shown, the fastening tool also includes a striking assembly 40, a triggering assembly 50, and a braking assembly 60. The striking assembly 40 and the braking assembly 60 are located within a receiving space, and the triggering assembly 50 is located at the front end of the housing 10 and partially within the receiving space. The striking assembly 40 includes a striking pin 41, which is configured to move in the striking direction to output a striking force to the fastener. The striking direction is the direction in which the fastener is driven into the workpiece. Figure 1 and Figure 2 The direction indicated by the middle arrow is the forward direction of the strike.

[0073] The triggering component 50 is configured to trigger the first switch 70. The triggering component 50 includes a first state where the first switch 70 is not triggered and a second state where the first switch 70 is triggered. When the first switch 70 is not triggered, the striking pin 41 does not output striking force. The braking component 60 includes a locked state that prevents the striking pin 41 from moving in the striking direction and a released state that allows the striking pin 41 to move in the striking direction. In response to the triggering component 50 switching to the first state, the braking component 60 switches to the locked state. It should be noted that "the braking component 60 responds to the triggering component 50" means that the triggering component 50 and the braking component 60 are mechanically connected; simultaneously with the triggering component 50 starting to switch to the first state, the braking component 60 starts to switch to the locked state. When the triggering component 50 switches to the second state, the braking component 60 switches to the released state.

[0074] When the triggering component 50 is in the first state, the first switch 70 is not triggered, and the firing pin 41 does not output striking force. The braking component 60 is in the locked state, preventing the firing pin 41 from moving in the striking direction, thus preventing the firing pin 41 from moving accidentally in the striking direction. In the following description, for simplicity, the falling of the firing pin 41 will be used instead of the accidental movement of the firing pin 41 in the striking direction. By setting the braking component 60, the firing pin 41 is prevented from firing accidentally, making the process more stable and safer.

[0075] The fastening tool also includes a power output unit 80, which is disposed within the receiving space and is used to output power to the firing pin 41. In this embodiment, the power output unit 80 includes a cylinder, which performs work by using gas in the cylinder to drive the firing pin 41 to strike the nail. The cylinder also includes an air inlet for pre-filling the cylinder with gas. When the firing pin 41 is released, the pressure of the pre-filled gas pushes the firing pin 41 to give it an acceleration, thereby causing the firing pin 41 to strike the nail with a large momentum.

[0076] The fastening tool also includes a drive mechanism 90, which drives the striking pin 41 to move in the opposite direction of the striking direction. In this embodiment, the drive mechanism 90 includes a motor 91 and a gear 92, with the motor 91 driving the gear 92 to rotate. The striking pin 41 is provided with a plurality of power teeth 411, and the gear 92 meshes with the power teeth 411. The gear 92 has a toothless notch; when the first switch 70 is triggered, the motor 91 drives the gear 92 to rotate to the position where the notch engages with the striking pin 41. See also Figure 4 When gear 92 rotates and disengages from the power tooth 411 on the firing pin 41, the firing pin 41 moves in the striking direction under the action of the cylinder, completing one strike. Figure 4The middle arrow indicates the rotation direction of gear 92. After the strike is completed, the power tooth 411 at the rear end of the striking pin 41 moves to the vicinity of gear 92. The motor 91 drives gear 92 to continue rotating, so that gear 92 meshes with striking pin 41. Under the rotation of gear 92, striking pin 41 is driven to move backward and reset, that is, reset in the opposite direction of the striking direction, in preparation for the next strike.

[0077] The rotation direction of gear 92 is unidirectional. The drive mechanism 90 also includes a one-way clutch, which is used to restrict gear 92 to rotate in only one direction. The one-way clutch is an existing structure and will not be described in detail here.

[0078] The trigger assembly 50 includes a trigger rod 51, which is slidably connected to the housing 10. The trigger rod 51 is movable between a first position and a second position to switch the trigger assembly 50 between the first and second states. Specifically, when the trigger rod 51 is in the first position, the trigger assembly 50 is in the first state, and when the trigger rod 51 is in the second position, the trigger assembly 50 is in the second state.

[0079] In this embodiment, the movement of the trigger lever 51 between the first position and the second position can be operated by the operator. Specifically, when the trigger lever 51 is in the first position, the operator presses the trigger lever 51 against the workpiece, causing the trigger lever 51 to move to the second position and thus trigger the first switch 70.

[0080] The trigger assembly 50 also includes a trigger elastic element 52, which is disposed between the trigger rod 51 and the housing 10. The trigger elastic element 52 can drive the trigger rod 51 to reset to the first position. When the operator moves the whole machine away from the workpiece, causing the trigger rod 51 to disengage from the workpiece, the trigger rod 51 resets under the action of the trigger elastic element 52.

[0081] The first switch 70 can be a microswitch, a relay, or a potentiometer. In this embodiment, the first switch 70 includes a magnet 71 and a Hall element 72. One magnet 71 is disposed on the trigger rod 51, and the other is disposed on the housing 10. Movement of the trigger rod 51 causes the Hall element 72 to generate a sensing signal. Specifically, the magnet 71 is disposed on the trigger rod 51, and the Hall element 72 is disposed on the housing 10. When the trigger rod 51 moves between a first position and a second position, the Hall element 72 senses the position change of the magnet 71 and outputs different signals to indicate whether the first switch 70 is triggered or not.

[0082] The braking assembly 60 includes a pawl 61, which is rotatably connected to the housing 10. The pawl 61 is rotatable between a locked position and a released position. When in the locked position, the pawl 61 engages with the power teeth 411 on the striker 41, and when in the released position, the pawl 61 disengages from the power teeth 411 on the striker 41. The striker 41 is provided with multiple power teeth 411, which are distributed on both sides of the striker 41. The pawl 61 and the gear 92 are distributed on both sides of the striker 41. The power teeth 411 on one side can mesh with the gear 92, and the power teeth 411 on the other side can engage with the pawl 61. Specifically, a limiting protrusion 611 is provided at one end of the pawl 61. When the pawl 61 is in the locked position, the limiting protrusion 611 is located on the moving path of the firing pin 41. If the firing pin 41 falls unexpectedly in the striking direction, the limiting protrusion 611 engages with the power tooth 411 on the firing pin 41 to limit the accidental firing of the firing pin 41.

[0083] See Figure 7 When the pawl 61 is in the locked position, the limiting protrusion 611 and the power tooth 411 at the front end of the firing pin 41 are spaced apart. Only when the firing pin 41 falls unexpectedly in the striking direction can the limiting protrusion 611 engage with the power tooth 411 on the firing pin 41. The spaced arrangement facilitates the rotation of the pawl 61.

[0084] In this embodiment, the trigger component 50 and the braking component 60 are linked. Specifically, the trigger component 50 drives the braking component 60 to move. When the trigger component 50 switches from the first state to the second state, it drives the braking component 60 to switch from the locked state to the released state, ensuring the synchronization of the two and avoiding any delay, so that the striking pin 41 moves quickly and smoothly.

[0085] See Figures 3 to 5 The fastening tool includes a drive circuit 101, which is powered by a battery pack 30. A first switch 70 and a motor 91 are both electrically connected to the drive circuit 101, which is also electrically connected to a controller 102. The first switch 70 is triggered mechanically by the trigger rod 51 of the trigger assembly 50, thus eliminating the need for power to the trigger assembly 50. The trigger assembly 50 drives the braking assembly 60, ensuring that the braking assembly 60 also operates without power, achieving purely mechanical anti-reverse operation. This results in a robust structure unaffected by power outages. Furthermore, even when the fastening tool is stopped, if it experiences vibration and the power gear 411 tends to disengage from the gear 92, the braking assembly 60 can prevent this, ensuring that the striking pin 41 does not fall accidentally and improving safety.

[0086] Specifically, during the movement of the trigger lever 51, the pawl 61 rotates. When the trigger lever 51 moves from the first position to the second position, the pawl 61 rotates from the locked position to the released position. When the trigger lever 51 is in the first position, it does not trigger the first switch 70, and the striking pin 41 does not output striking force. At this time, the pawl 61 is in the locked position, keeping the braking assembly 60 locked and preventing the striking pin 41 from moving in the striking direction, thus preventing the striking pin 41 from falling accidentally. When the trigger lever 51 moves from the first position to the second position, it triggers the first switch 70, simultaneously rotating the pawl 61 from the locked position to the released position, releasing the braking assembly 60 and allowing the striking pin 41 to move in the striking direction.

[0087] The braking assembly 60 also includes a braking elastic element 62, which is disposed between the pawl 61 and the housing 10. The braking elastic element 62 provides a spring force to the pawl 61 to bias the pawl 61 into a locked position. When the pawl 61 is in the locked position, the limiting protrusion 611 on the pawl 61 abuts against the striker 41. At this time, the braking elastic element 62 provides a spring force to the pawl 61 to bias the pawl 61 into the locked position, making the pawl 61 stable and facilitating timely prevention of movement of the striker 41.

[0088] Specifically, a limiting protrusion 611 is provided at one end of the pawl 61, and a braking elastic element 62 is provided at the other end of the pawl 61. The rotating shaft 63 on which the pawl 61 is located is between the limiting protrusion 611 and the braking elastic element 62, and the pawl 61 is rotatably connected to the rotating shaft 63. When the pawl 61 is in the locked position, the limiting protrusion 611 abuts against the striker 41. At this time, the braking elastic element 62 is compressed to provide a spring force to the pawl 61 to bias the pawl 61 to the locked position.

[0089] In this embodiment, the braking assembly 60 further includes a push rod 64, which is slidably connected to the housing 10. Movement of the trigger rod 51 can drive the push rod 64 to move. The push rod 64 can push the pawl 61 to rotate. Specifically, the pawl 61 is provided with a guide post 65, and the end of the push rod 64 is provided with a guide ramp 641. Movement of the push rod 64 can cause the guide ramp 641 to abut against the guide post 65, causing the guide post 65 to move along the guide ramp 641. Movement of the guide post 65 drives the pawl 61 to rotate.

[0090] The trigger rod 51 is configured to move along a first straight line, and the push rod 64 is configured to move substantially parallel to the first straight line. Specifically, the trigger rod 51 is provided with a trigger piece 53, and the push rod 64 is provided with a groove 643. The trigger piece 53 is inserted into the groove 643 so that the trigger rod 51 can drive the push rod 64 to move.

[0091] The braking assembly 60 also includes a limiting post 66, which is fixedly connected to the housing 10. A guide groove 642 is provided on the push rod 64, and the limiting post 66 passes through the guide groove 642. During the movement of the push rod 64, the limiting post 66 slides within the guide groove 642. The guide groove 642 is an elongated groove, and the limiting post 66 is elongated, which prevents the push rod 64 from rotating, ensuring stable linear movement of the push rod 64.

[0092] The guide ramp 641 engages with the guide post 65, causing the pawl 61 to rotate around its own axis. The guide ramp 641 can be a plane or a curved surface. When the guide ramp 641 is a curved surface, it can be an arc-shaped surface arranged around the axis of the pawl 61, so that the guide post 65 and the pawl 61 have collinear axes, ensuring the stable rotation of the pawl 61.

[0093] The push rod 64 is provided with a limiting groove 644, and the guide post 65 can move along the guide slope 641 into the limiting groove 644. When the trigger rod 51 moves from the first position to the second position, the guide post 65 moves along the guide slope 641 into the limiting groove 644, and the limiting groove 644 limits the guide post 65, so that the pawl 61 is stable in the release position.

[0094] In this embodiment, the limiting groove 644 is a notch formed on one side of the push rod 64, which facilitates manufacturing. The guide post 65 can abut against the groove wall of the limiting groove 644. When the pawl 61 rotates from the locked position to the released position, as the guide post 65 moves, the limiting protrusion 611 of the pawl 61 disengages from the striker 41. At this time, the braking elastic element 62 is further compressed. Due to the limiting effect of the limiting groove 644 on the guide post 65, the limiting protrusion 611 of the pawl 61 is disengaged from the striker 41, and the position of the pawl 61 is stable.

[0095] The braking assembly 60 also includes an assisting elastic element, which is configured to apply a spring force to the pawl 61 during its movement, causing the pawl 61 to move away from the locked position. The movement of the push rod 64 causes the guide ramp 641 to abut against the guide post 65, allowing the guide post 65 to move along the guide ramp 641. The movement of the guide post 65 causes the pawl 61 to rotate, moving the pawl 61 away from the firing pin 41. At this time, the assisting elastic element applies a spring force to the pawl 61 during its movement, causing the pawl 61 to move away from the locked position, allowing the limiting protrusion 611 on the pawl 61 to quickly disengage from the firing pin 41. In particular, when the firing pin 41 accidentally falls, causing the limiting protrusion 611 of the pawl 61 to engage with the power tooth 411 on the firing pin 41, the assisting elastic element applies a spring force to the pawl 61 during its movement, causing the pawl 61 to move away from the locked position. This allows the limiting protrusion 611 on the pawl 61 to quickly disengage from the power tooth 411 on the firing pin 41, preventing jamming. Normally, there is a gap between the power tooth 411 and the pawl 61 for the pawl 61 to rotate. After the fastening tool has been used for a period of time, the firing pin 41 and the pawl 61 may wear down. When the pawl 61 is in the locked position, the gap between the worn power tooth 411 and the pawl 61 may become smaller or even disappear, and the power tooth 411 may come into direct contact with the pawl 61. If the power tooth 411 is in direct contact with the pawl 61, the pawl 61 has no room to rotate, and when the trigger assembly 50 is triggered, the pawl 411 and the power tooth 411 are easily damaged. When the braking assembly 60 also includes an assisting elastic element, the elastic assisting elastic element can deform to absorb the force of the trigger assembly 50, thereby playing a buffering role and preventing damage to the pawl 411 and the drive tooth 411.

[0096] In this embodiment, the triggering elastic element 52, the braking elastic element 62, and the assisting elastic element can all be springs.

[0097] Figures 15 to 19 Another embodiment of this application is shown, in which the triggering component 50 and the braking component 60 are independent of each other. The braking component 60 also includes a solenoid 200, which drives the pawl 61 to rotate. The structure is simple and the response is fast.

[0098] Specifically, the solenoid 200 includes a telescopic rod 201. The telescopic rod 201 is controlled to extend and retract by a magnetic field generated by the current in the conductor of the solenoid 200. A connecting rod 202 is provided at one end of the telescopic rod 201. One end of the connecting rod 202 is slidably connected to the telescopic rod 201, and the other end of the connecting rod 202 is fixedly connected to the rotating shaft 63 where the pawl 61 is located. The pawl 61 is also fixedly connected to the rotating shaft 63. The telescopic rod 201 extends and retracts in a straight line, thereby driving the connecting rod 202 to rotate, which in turn drives the pawl 61 to rotate. It can be understood that the connecting rod 202 and the pawl 61 rotate coaxially.

[0099] like Figure 15 and Figure 17 As shown, the solenoid 200 is disposed substantially along a first axis 203. The telescopic rod 201 moves substantially along the first axis 203. The firing pin 41 extends substantially along a first plane 205. The first axis 203 is located above the first plane 205. The fastening tool includes a support 204 supporting at least a portion of the solenoid 200. The support 204 is fixedly mounted on the housing 10. In this embodiment, the first axis 203 is located above the support 204 and is parallel to the striking direction of the firing pin 41. The first axis 203 is parallel to the first plane 205. In other embodiments, the first axis 203 is inclined relative to the first plane 205, or the first axis 203 is inclined relative to the striking direction of the firing pin 41. In some embodiments, the inclination angle between the first axis 203 and the first plane 205 is less than or equal to 10 degrees. In some embodiments, the inclination angle between the first axis 203 and the first plane 205 is less than or equal to 5 degrees. In some embodiments, the tilt angle of the first axis 203 relative to the striking direction of the firing pin 41 is less than or equal to 10 degrees. In some embodiments, the tilt angle of the first axis 203 relative to the striking direction of the firing pin 41 is less than or equal to 5 degrees.

[0100] See Figure 19 The fastening tool includes a drive circuit 101, which is powered by a battery pack 30. A first switch 70 and a motor 91 are both electrically connected to the drive circuit 101, which is also electrically connected to a controller 102. The trigger assembly 50 does not require power, but the solenoid 200 drives the braking assembly 60 via current. Therefore, the solenoid 200 can only function to drive the braking assembly 60 when the drive circuit 101 is energized. Specifically, the solenoid 200 is electrically connected to the controller 102. After the fastening tool is safely started, the drive circuit 101 is energized, and the solenoid 200, under the control of the controller 102, drives the braking assembly 60.

[0101] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above embodiments. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A fastening tool, comprising: The shell forms a space for containment; Magazine, which holds fasteners; A striking component is housed in the receiving space, the striking component including a striking pin configured to move in a striking direction to output a striking force to the fastener; The fastening tool is characterized in that it further includes: A triggering component is configured to trigger a first switch. The triggering component includes a first state in which the first switch is not triggered. When the first switch is not triggered, the striking pin does not output a striking force. A braking assembly, the braking assembly including a locking state that prevents the firing pin from moving in the striking direction; In response to the triggering component switching to the first state, the braking component switches to the locked state.

2. The fastening tool according to claim 1, characterized in that, The triggering component includes a second state that triggers the first switch, and the braking component includes a release state that allows the striker to move along the striking direction. When the triggering component switches to the second state, the braking component switches to the release state.

3. The fastening tool according to claim 1, characterized in that, The triggering component is linked to the braking component.

4. The fastening tool according to claim 3, characterized in that, The braking assembly includes a pawl that is rotatably connected to the housing. The pawl is rotatable between a locked position and a released position. When in the locked position, the pawl can engage with the power teeth on the striker.

5. The fastening tool according to claim 4, characterized in that, The triggering component includes a trigger rod that is slidably connected to the housing. The trigger rod is movable between a first position and a second position to drive the pawl to rotate. When the trigger rod is in the first position, it does not trigger the first switch.

6. The fastening tool according to claim 5, characterized in that, The braking assembly also includes a push rod, which is slidably connected to the housing, and the movement of the trigger rod can drive the push rod to move.

7. The fastening tool according to claim 6, characterized in that, The pawl is provided with a guide post, and the end of the push rod is provided with a guide ramp. The movement of the push rod can cause the guide ramp to abut against the guide post so that the guide post moves along the guide ramp. The movement of the guide post causes the pawl to rotate.

8. The fastening tool according to claim 7, characterized in that, The push rod is provided with a limiting groove, and the guide post can move along the guide slope into the limiting groove.

9. The fastening tool according to claim 6, characterized in that, The trigger lever is configured to move along a first straight line, and the push lever is configured to move substantially parallel to the first straight line.

10. The fastening tool according to claim 4, characterized in that, The braking assembly further includes an assisting elastic element configured to apply a spring force to the pawl during its movement, causing the pawl to move away from the locked position.

11. The fastening tool according to claim 4, characterized in that, The braking assembly further includes a braking elastic element disposed between the pawl and the housing, the braking elastic element providing a spring force to the pawl to bias the pawl to the locked position.

12. The fastening tool according to claim 5, characterized in that, The triggering component further includes a triggering elastic element, which is disposed between the triggering rod and the housing, and the triggering elastic element can drive the triggering rod to reset to the first position.

13. The fastening tool according to claim 5, characterized in that, The first switch includes a magnet and a Hall element, one of which is disposed on the trigger rod and the other on the housing. The trigger rod is moved to cause the Hall element to generate a sensing signal.

14. A fastening tool, comprising: The shell forms a space for containment; Magazine, which holds fasteners; A striking component is housed in the receiving space, the striking component including a striking pin configured to move in a striking direction to output a striking force to the fastener; The fastening tool is characterized in that it further includes: The triggering component is configured to trigger a first switch. The triggering component includes a first state in which the first switch is not triggered and a second state in which the first switch is triggered. When the first switch is not triggered, the striking pin does not output a striking force. A braking assembly, the braking assembly including a locked state that prevents the firing pin from moving in the impact direction and a released state that allows the firing pin to move in the impact direction; The triggering component drives the braking component to move.

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