Safety nail gun and multi-purpose nail gun system

Abstract

The present application provides a kind of safety nail gun and multi-purpose nail gun system, including shell, firing pin, firing pin driving mechanism, nail magazine assembly, control mechanism, wherein control mechanism includes nail shooting switch, protection switch and safety switch, the presser of nail shooting switch and protection switch is arranged at the handle of nail gun, and the trigger is pressed by finger by operator, and the trigger lever assembly of safety switch is arranged at the muzzle, and the trigger is triggered when the muzzle is pressed on target position by operator.Therefore, when trigger lever assembly is pressed down and protection presser is pressed down, nail shooting presser is pressed down to fire again.By double insurance design of protection switch and safety switch, it can effectively avoid the mis-touch situation when operator forces down the switch at muzzle, and further improve the safety of nail gun.In addition, protection presser is also arranged at handle and close to nail shooting presser, so that operator can conveniently operate two switches at handle with one hand, and will not cause additional burden to operator.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fastening tools, and particularly relates to a safety nail gun and a multi-purpose nail gun system. BACKGROUND

[0002] The nail gun is a kind of fastening tool, which is often used in construction and can shoot nails out through the impact of its hammer. Some nail guns on the market can be fired by directly pulling the trigger under the condition of being powered on, which has a great safety hazard. Therefore, some other nail guns on the market are designed with a certain safety mechanism, in which a curved rod is arranged at the muzzle, and the operator presses the muzzle against a wall or the like under the condition that the nail gun is powered on, so that the curved rod is pressed down, and then the trigger is pulled to achieve firing. Compared with the control mode of directly pulling the trigger to fire, this mode improves the safety factor, however, since the curved rod is arranged at the muzzle, the operator needs to press the muzzle with force, and in this process, the operator is also easy to press the trigger at the handle to cause misfiring.

[0003] The shooting force of the nail gun is very large, and misfiring may cause serious consequences. Therefore, in order to solve the above problems, a nail gun with more optimized design is needed, which can ensure the safety of the nail gun.

[0004] In addition, different sizes of nails are often used in construction, and currently, different types of nail guns need to be switched for different nails, and multiple nail guns need to be equipped on site, which is high in cost. SUMMARY

[0005] The present application is carried out to solve the above problems, and aims to provide a safety nail gun and a multi-purpose nail gun system which can reduce safety hazards, and the present application adopts the following technical solutions:

[0006] The application provides a safety nail gun, characterized in that it comprises: a hammer for hitting a nail to shoot it out; a hammer driving mechanism for driving the hammer to hit; a driving motor for driving the hammer driving mechanism to store energy and shoot nails; a control mechanism for controlling the driving motor to start or stop; and a shell, wherein the hammer, the hammer driving mechanism, the driving motor and the control mechanism are all accommodated in the shell, the shell has a handle part for an operator to hold and a gun nozzle connecting part for connecting a gun nozzle, the control mechanism comprises: a nail shooting switch having a nail shooting presser arranged on the handle part, a nail shooting switch element generating a nail shooting electric signal when the nail shooting presser is pressed; a protection switch having a protection presser arranged on the handle part and close to the nail shooting switch, a protection switch element generating a protection electric signal when the protection presser is pressed; a safety switch having a trigger rod assembly arranged on the gun nozzle and the gun nozzle connecting part, a safety switch element generating a safety electric signal when the trigger rod assembly is pressed; and a control module electrically connected with the driving motor, the nail shooting switch, the protection switch and the safety switch respectively.

[0007] The safety nail gun provided by the application can further have the following technical features: the nail shooting switch further comprises a nail shooting reset member connected with the nail shooting presser and used for resetting the pressed nail shooting presser, the protection switch further comprises a protection reset member abutting against the protection presser and used for resetting the pressed protection presser, and the safety switch further comprises a safety reset member abutting against the trigger rod assembly and used for resetting the pressed trigger rod assembly.

[0008] The safety nail gun provided by the application can further have the following technical features: the nail shooting switch element, the protection switch element and the safety switch element are all micro switches, the control module is a circuit board, the micro switches are all connected to the circuit board through wires, and the nail shooting reset member, the protection reset member and the safety reset member are all spring members.

[0009] The safety nail gun provided by the application can further have the following technical features: the shell comprises: an accommodating casing with an inner surface having a plurality of accommodating parts respectively used for accommodating the micro switches and the spring members; and a limiting casing matched with the accommodating casing and detachably connected to the accommodating casing, wherein the inner surface of the limiting casing has a plurality of limiting parts respectively corresponding to the accommodating parts and used for limiting the micro switches or the spring members accommodated in the corresponding accommodating parts.

[0010] The safe nail gun provided by the application can further have the following technical features: the trigger lever assembly comprises a curved lever, a connecting lever and a bent lever in sequence, the curved lever is movably connected to the gun nozzle, the connecting lever and the bent lever are movably arranged in the accommodating shell, and the inner surface of the accommodating shell further has an accommodating part for accommodating the connecting lever and the bent lever.

[0011] The safe nail gun provided by the application can further have the following technical features: the hammer driving mechanism comprises a piston for driving the hammer, the tail of the hammer is detachably connected to the side of the piston, the shell further comprises a hammer baffle, and the accommodating shell and the limiting shell are connected to form a replacement opening at the upper end thereof, the replacement opening exposes the tail of the hammer, and the hammer baffle is detachably mounted at the replacement opening.

[0012] The safe nail gun provided by the application can further have the following technical features: the safe nail gun further comprises a nail magazine assembly which is detachably connected to the hammer driving mechanism and the shell and comprises a gun nozzle and a nail magazine connected to the gun nozzle.

[0013] The safe nail gun provided by the application can further have the following technical features: one end of the gun nozzle has a gun nozzle connecting hole, one end of the nail magazine away from the gun nozzle is provided with a nail magazine connecting plate, one end of the nail magazine connecting plate extends from the side of the nail magazine, the end has a nail magazine connecting hole, the hammer driving mechanism comprises a regulating frame, the regulating frame comprises a limiting base, when arranged in the shell, the limiting base is located at the gun nozzle connecting part, the upper end of the limiting base is exposed from the replacement opening, the upper end of the limiting base has a nail magazine head mounting hole, one side of the shell has a nail magazine tail mounting hole, one end of the gun nozzle is mounted on the limiting base through the gun nozzle connecting hole, the nail magazine head mounting hole and a fastener, and one end of the nail magazine is mounted on one side of the shell through the nail magazine connecting hole, the nail magazine tail mounting hole and a fastener.

[0014] The safe nail gun provided by the application can further have the following technical features: the nail magazine is a side hook type nail magazine, and one end of the side hook type nail magazine away from the gun nozzle is further provided with a side hook type nail magazine wrench for hooking the nail magazine connecting plate, and the side hook type nail magazine wrench is arranged on one side in the thickness direction of the nail magazine.

[0015] The safe nail gun provided by the application can also have the following technical features: the nail magazine is a rear hook type nail magazine, and a rear hook type nail magazine wrench is arranged at the end of the nail magazine away from the muzzle, used for hooking the nail magazine connecting plate, the rear hook type nail magazine wrench is arranged on one side of the nail magazine in the width direction and extends in the same direction as the nail magazine connecting plate, and the bottom of the shell also has an inwardly recessed avoiding groove, and when the nail magazine assembly is connected to the shell, the rear hook type nail magazine wrench is accommodated in the avoiding groove.

[0016] The application provides a multi-purpose nail gun system, characterized in that the system comprises the safe nail gun, a plurality of nail magazine assemblies of different types, and a plurality of firing pins of different types, wherein the nail magazine assemblies and the firing pins correspond to nails of different types.

[0017] Inventive action and effect

[0018] The safe nail gun according to the application comprises a shell, a firing pin, a firing pin driving mechanism, a nail magazine assembly, and a control mechanism, wherein the control mechanism comprises a nail shooting switch, a protection switch, and a safety switch, the pressing part of the nail shooting switch and the protection switch are arranged at the handle of the nail gun, and the operator presses the trigger with fingers, the trigger rod assembly of the safety switch is arranged at the muzzle, and the operator triggers when the muzzle is pressed against the target position. Therefore, the nail shooting pressing part can be pressed again to fire when the trigger rod assembly is pressed down and the protection pressing part is pressed down. Through the double insurance design of the protection switch and the safety switch, the accidental touch of the operator when pressing the switch at the muzzle can be effectively avoided, and the safety of the nail gun is further improved. In addition, the protection pressing part is also arranged at the handle and close to the nail shooting pressing part, so that the operator can conveniently operate the two switches at the handle with one hand, and no additional burden is caused to the operator.

[0019] The multi-purpose nail gun system according to the application comprises the safe nail gun, a plurality of nail magazine assemblies of different types, and a plurality of firing pins of different types, corresponding to nails of different types, and the nail magazine assembly is detachably connected to the shell, so that the nail gun can be adapted to nails of different types by disassembling and replacing the firing pins and the nail magazine of different types, without the need to provide a plurality of nail guns at the construction site, which is convenient and practical, and can reduce the cost of providing tools. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of the nail gun in the embodiment of the application;

[0021] Figure 2 is a perspective view of part of the structure of the nail gun in the embodiment of the application;

[0022] Figure 3 is an orthographic projection view of part of the structure of the nail gun in the embodiment of the application;

[0023] Figure 4 This is a perspective view of the firing pin driving mechanism in an embodiment of the present invention;

[0024] Figure 5 This is an exploded view of the firing pin drive mechanism in an embodiment of the present invention;

[0025] Figure 6 This is a perspective view of the piston in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the drive wheel and piston in an embodiment of the present invention;

[0027] Figure 8 This is an installation structure diagram of the control mechanism in the left shell handle portion of an embodiment of the present invention;

[0028] Figure 9 This is a perspective view of the pressing component for nailing in an embodiment of the present invention.

[0029] Figure 10 This is an installation structure diagram of the control mechanism in the upper main body of the left shell in an embodiment of the present invention;

[0030] Figure 11 This is a perspective view of the left casing in an embodiment of the present invention;

[0031] Figure 12 This is a frontal projection view of the left casing in an embodiment of the present invention;

[0032] Figure 13 This is a perspective view of the right casing in an embodiment of the present invention;

[0033] Figure 14 This is a frontal projection view of the right casing in an embodiment of the present invention;

[0034] Figure 15 yes Figure 12 Enlarged view of the inner part of frame A;

[0035] Figure 16 yes Figure 12 Enlarged view of the inner part of the middle frame B;

[0036] Figure 17 yes Figure 12 Enlarged view of the inner part of the middle frame C;

[0037] Figure 18 This is an exploded view of the nail gun in an embodiment of the present invention;

[0038] Figure 19 This is a perspective view of the hook-type nail box in an embodiment of the present invention;

[0039] Figure 20 This is a schematic diagram of the installation of the hook-type nail box in an embodiment of the present invention.

[0040] Reference Signs:

[0041] nail gun 10; baffle 12; left casing upper body 20; left casing upper body 21; safety switch accommodating portion 211; connecting rod accommodating groove 2111; annular protrusion 2111a; safety reset member accommodating groove 2112; bent rod accommodating groove 2113; safety element fitting portion 2114; safety element limiting protrusion 2114a; safety element fixing protrusion 2114b; stop switch accommodating portion 212; stop element fitting portion 2121; push member accommodating groove 2122; limiting opening 2123; wire gap 219; left casing lower body 22; left casing handle portion 23; nail shooting switch accommodating portion 231; nail shooting reset member accommodating groove 2311; bevel portion 2311a; nail shooting element fitting portion 2312; nail shooting element limiting protrusion 2312a; nail shooting element fixing protrusion 2312b; protection switch accommodating portion 232; protection reset member accommodating groove 2321; protection element fitting portion 2322; protection element limiting protrusion 2322a; protection element fixing protrusion 2322b; wire fitting portion 233; wire limiting protrusion 2331; push member mounting hole 234; first switch gap 235; handle member limiting groove 2351; second switch gap 236; left casing connecting portion 24; circuit board accommodating portion 221; circuit board fitting groove 2211; button unit limiting groove 2212; wire storage cavity 222; cylindrical protrusion 2221; right casing 30; right casing upper body 31; right casing lower body 32; right casing handle portion 33; right casing connecting portion 34; striker driving mechanism 40; regulation frame 41; guide rod 42; spring assembly 43; piston 44; piston body 441; sleeve fitting through hole 4411; rolling member fitting groove 4412; striker mounting portion 4413; first piston protection member 442; second piston protection member 443; first pushing end 445; second pushing end 446; rolling member 45; buffer member 46; drive wheel 47; wheel body 471; first pushing protrusion 4711; second pushing protrusion 4712; drive motor 48; motor 481; speed reduction and torque increasing unit 482; one-way bearing 49; gun nozzle 50; nail magazine assembly 50; gun nozzle 51; nail magazine 52; nail magazine connecting plate 521; side hook type nail magazine wrench 522; rear hook type nail magazine wrench 523; striker 60; circuit board assembly 80; circuit board 81; power button unit 82; nail shooting switch 91; nail shooting push member 911; push body 9111; connecting column portion 9112; spring connecting column portion 9113; pushing column portion 9114; limiting protrusion 9115; nail shooting switch element 912; nail shooting reset member 913; protection switch 92; protection push member 921; protection switch element 922; protection reset member 923; safety switch 93; curved rod 931; connecting rod 932; bent rod 933; safety switch element 934; safety reset member 935; energy storage stop switch 94; stop push member 941; stop switch element 942. DETAILED DESCRIPTION

[0042] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the safety nail gun and the multi-purpose nail gun system of the present application are specifically described below in combination with embodiments and drawings.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0044] <EMBODIMENT>

[0045] Figure 1 is a perspective view of the nail gun in this embodiment.

[0046] Figure 2 is a perspective view of part of the structure of the nail gun in this embodiment;

[0047] Figure 3 is an orthographic projection view of part of the structure of the nail gun in this embodiment, showing the internal structure, Figure 2 , Figure 3 omits part of the shell and part of the internal components.

[0048] As shown in Figures 1-3 , the present embodiment provides a safety nail gun 10, which comprises a shell, a striker 60, a striker driving mechanism 40, a nail magazine assembly 50 and a control mechanism, and also comprises a nail magazine, a lithium battery and other conventional settings, which will not be described in detail.

[0049] The striker 60 is in the form of a sheet and is used to strike nails to make them shoot out, the striker driving mechanism 40 is used to drive the striker 60 to strike and shoot nails, and the control mechanism is used to control the striker driving mechanism 40.

[0050] Figure 4 is a perspective view of the striker driving mechanism in the embodiment of the present application;

[0051] Figure 5 is a structure exploded view of the striker driving mechanism in the embodiment of the present application;

[0052] As shown in Figures 4-5As shown, the firing pin drive mechanism 40 includes an energy storage component and an energy storage drive component. The energy storage component includes a regulating frame 41, a guide rod 42, a spring assembly 43, a piston 44, a pair of rolling elements 45, and a buffer element 46. The energy storage drive component includes a drive wheel 47, a drive motor 48, and a one-way bearing 49.

[0053] The regulating frame 41 is used to regulate and limit the piston 44, ensuring that the piston 44 moves only in a predetermined reciprocating motion direction. In the figure, arrow D1 indicates the nail-shooting direction, and arrow D2 indicates the energy-storing direction. The reciprocating motion direction includes both the nail-shooting direction and the energy-storing direction. The length of the regulating frame 41 coincides with this reciprocating motion direction. The regulating frame 41 includes a limiting base 411, a limiting plate 412, and two regulating plates 413.

[0054] The limiting base 411 is used to limit the movement of the piston 44 during nail firing and to withstand the impact of the piston 44. The limiting plate 412 is used to limit the piston 44 and the spring assembly 43. The limiting plate 412 has a circular limiting through hole in the middle that matches the guide rod 42 for mounting the guide rod 42. The regulating plate 413 is used to regulate the movement direction of the piston 44. The two regulating plates 413 are arranged in parallel. The two ends of the limiting base 411 and the limiting plate 412 are respectively connected to the ends of the two regulating plates 413 and are fastened by multiple frame fasteners 414, forming an open square frame.

[0055] The guide rod 42 is used to guide the piston 44 to move in a predetermined reciprocating direction. The guide rod 42 is a round rod with uniform thickness. One end is fixedly installed in the middle of the limiting base 411 through the guide rod mounting hole 4111, and the other end is movably installed in the middle of the limiting plate 412 through the limiting through hole 4121.

[0056] The energy storage component 43 is used to provide power for the impact nail. In this embodiment, the energy storage component 43 is spring-type, including a first force-supplying spring 431 and a second force-supplying spring 432, both of which are mounted on the guide rod 42. Each spring has one end abutting against the limiting plate 412 and the other end abutting against the piston 44. The diameter of the first force-supplying spring 431 is larger than that of the second force-supplying spring 432, and it is mounted on the outside of the second force-supplying spring. The two springs have different directions of rotation.

[0057] Piston 44 is used to drive the firing pin 60 mounted on piston 44.

[0058] Figure 6 This is a perspective view of the piston in this embodiment.

[0059] like Figure 6 As shown, piston 34 includes piston body 341, first piston protector 342 and second piston protector 343.

[0060] The piston body 441 is an aluminum member, and a sleeve through hole 4411 is formed in the middle of the piston body 441, which is used to movably sleeve the piston 44 to the guide rod 42. The two sides of the piston 44 are respectively provided with rolling member embedding grooves 4412, which are used to rollably embed the rolling members 45.

[0061] One side of the piston body 441 is provided with a hammer mounting portion 4413, which has a hammer mounting hole for fixedly mounting the hammer 60. The other side of the piston body 441 is provided with a first pushing portion 4414 and a second pushing portion 4415, which are used to cooperate with the driving wheel 47 to push the piston 44 to move, wherein the first pushing portion 4414 extends from the piston body 441 towards the nail shooting direction, the second pushing portion 4415 extends from the piston body 441 towards the driving wheel 47, and the second pushing portion 4415 is substantially perpendicular to the first pushing portion 4414.

[0062] The first piston protection member 342 and the second piston protection member 343 are both iron members, which are more wear-resistant and can protect the piston body 341. The shape of the first piston protection member 342 matches the first pushing portion 3414, the first piston protection member 342 is wrapped on the first pushing portion 3414, and the first pushing end 345 is formed. The shape of the second piston protection member 343 matches the second pushing portion 3415, the second piston protection member 343 is wrapped on the second pushing portion 3415, and the second pushing end 346 is formed.

[0063] The rolling members 45 are used to reduce the frictional force received by the piston 44 during movement. In this embodiment, the rolling members 45 are steel balls, which are spherical and rollably installed in the rolling member embedding grooves 4412 and protrude outward from the rolling member embedding grooves 4412, so that the piston 44 does not directly contact the regulating plate 413, thereby reducing the frictional force received by the piston 44 during movement.

[0064] The buffer member 46 is a soft plastic buffer pad, which is used to buffer the impact of the piston 44 during nail shooting, thereby protecting the limiting base 411 and the piston 44.

[0065] The driving wheel 47 is used to push the piston 44 to move towards the energy storage assembly 43, i.e. to move towards the energy storage direction, thereby compressing and storing the spring. The driving wheel 47 has a wheel body 471 and a first pushing protrusion 4711 and a second pushing protrusion 4712 provided on the wheel body 471.

[0066] The wheel body 471 can rotate along its axis to drive the first pushing protrusion 4711 and the second pushing protrusion 4712 to move in an arc shape, thereby pushing the piston 44 to move. The middle part of the wheel body 471 has a pivot hole 4713, and the wheel body 471 is installed to the output end of the driving motor 48 through the pivot hole 4713 and rotates around the output end as the axis.

[0067] The wheel body 471 is provided with a first pushing protrusion 4711 and a second pushing protrusion 4712 on the side facing the piston 44. Both the first pushing protrusion 4711 and the second pushing protrusion 4712 are cylindrical, and their extending directions are consistent with the extending direction of the pivot hole 4713. The height of the first pushing protrusion 4711 is higher than that of the second pushing protrusion 4712. The shape and height of the first pushing protrusion 4711 correspond to the arrangement of the first pushing end 445, and the shape and height of the second pushing protrusion 4712 correspond to the arrangement of the second pushing end 446.

[0068] Figure 7 is a structural schematic diagram of the cooperation between the driving wheel and the piston in the embodiment.

[0069] As shown in Figure 7 , the driving wheel 47 rotates under the driving of the driving motor 48. With the rotation of the pushing member 47, the second pushing protrusion 4712 moves to the second pushing end 446 and abuts against it. At this time, the pushing member 47 continues to rotate, and the second pushing protrusion 4712 moves in an arc shape towards the energy storage direction. Through the second pushing end 446, an arc-shaped pushing force towards the energy storage direction is applied to the piston 44. Under the action of the pushing force, the piston 44 can move along the guide rod 42 towards the energy storage direction and also can move in a circular motion around the guide rod 42. Since the piston 44 abuts against the corresponding side of the regulating plate 413 through a pair of rolling members 45, the movement direction of the piston 44 is limited, so that it cannot move in a circular motion, thereby making the piston 44 only move along the guide rod 32 towards the energy storage direction, so as to compress the spring and store energy.

[0070] When the second pushing protrusion 4712 rotates to the maximum stroke along the energy storage direction, the first-stage energy storage is completed. At this time, the pushing member 47 continues to rotate, and the second pushing protrusion 4712 rotates and moves away from the second pushing end 446. At the same time, the first pushing protrusion 4711 rotates to the first pushing end 445 and abuts against it. Then, the first pushing protrusion 4711 pushes the piston 44 further towards the energy storage direction in the same way, until the first pushing protrusion 4711 rotates to the maximum stroke along the energy storage direction, and the second-stage energy storage is completed.

[0071] After the second-stage energy storage is completed, the nail shooting can be performed. During the nail shooting, the driving motor 48 drives the pushing member 47 to continue to rotate, and the first pushing protrusion 4711 rotates and moves away from the first pushing end 445. At this time, both the first pushing protrusion 4711 and the second pushing protrusion 4712 are located outside the movement path of the piston 44. Therefore, the piston 44 moves towards the nail shooting direction under the action of the spring, until the piston 44 hits the buffer 46, and the nail shooting process is completed.

[0072] The driving motor 48 is used to drive the driving wheel 47 to rotate, and then drive the piston 44 to move through the driving wheel 47. The driving motor 48 comprises a motor 481 and a speed reduction and torque increasing unit 482. The motor 481 is a brushless motor, and the speed reduction and torque increasing unit 482 is installed at the output end of the motor 481, which is used to reduce the rotating speed of the output end of the motor 481, so as to obtain higher output torque, that is, greater driving force. The end of the speed reduction and torque increasing unit 482 is provided with an output shaft 4821, which is the output end of the driving motor 48. The wheel body 471 of the driving wheel 47 is installed on the output shaft 4821 through a pivot hole located in the middle of the wheel body 471, so that the driving wheel 47 can rotate synchronously with the output shaft 4821.

[0073] The one-way bearing 49 is used to limit the rotating direction of the output end of the driving motor 48, so that it can only rotate in one direction. The one-way bearing 49 is installed on the output shaft 4821 of the speed reduction and torque increasing unit 482, and forms a hole shaft cooperation with the output shaft 4821, so that the output shaft 4821 can only rotate in one direction.

[0074] The nail magazine assembly 50 comprises a gun nozzle 51 and a nail magazine 52, which can be disassembled as a whole. The gun nozzle 51 is used to accommodate the striker 40, and plays a limiting and guiding role on the striker 40 when the striker 40 hits the nail. The nail magazine 52 is used to supply nails to the gun nozzle 51.

[0075] The control mechanism comprises a shooting switch 91, a protection switch 92, a safety switch 93, an energy storage stop switch 94 and a control module. The shooting switch 91 and the protection switch 92 are arranged at the handle, the safety switch 93 is arranged near the gun nozzle, and the energy storage stop switch 94 is arranged beside the regulating frame 41.

[0076] Figure 8 FIG. 8 is an installation structure diagram of the control mechanism in the left shell handle part in the embodiment of the present application.

[0077] As shown in FIG. 9, the shooting switch 91 comprises a shooting presser 911, a shooting switch element 912 and a shooting reset member 913. Figure 8

[0078] Figure 9 FIG. 10 is a perspective view of the shooting presser in the embodiment.

[0079] As shown in FIG. 11, the shooting switch element 912 comprises a shooting switch body 9121 and a shooting switch spring 9122. Figure 9 ​As shown, the nail-shooting pressing member 911 includes a pressing body 9111, a connecting post 9112 integrally formed on the upper end of one side of the pressing body 9111, a spring connecting post 9113 in the middle of one side, a pushing post 9114 at the lower end of one side, and a limiting protrusion 9115 at the bottom of one side. The other side of the pressing body 9111 is concave and arc-shaped, making it easy for the operator to press with their fingers. The nail-shooting switching element 912 is a micro switch with a trigger spring. When the nail-shooting pressing member 911 is pressed, it actuates the spring, and the micro switch generates a corresponding signal. In addition, the micro switch has two through holes in the middle for installation. The nail-shooting reset member 913 is a spring.

[0080] The protective switch 92 includes a protective pressing element 921, a protective switching element 922, and a protective resetting element 923. The protective pressing element 921 is button-shaped, with one side for the operator to press and a circular groove on the other side for housing a spring. The protective switching element 922 is also a micro switch, and the protective resetting element 923 is also a spring.

[0081] Figure 10 This is a diagram showing the installation structure of the control mechanism in the upper main body of the left shell in this embodiment.

[0082] like Figure 10 As shown, the safety switch 93 includes a crank rod 931, a connecting rod 932, a bent rod 933, a safety switching element 934, and a safety reset element 935. The crank rod 931, connecting rod 932, and bent rod 933 abut against each other in sequence, serving as a trigger rod assembly for actuating the safety switching element 934. The safety switching element 934 is also a microswitch, and the safety reset element 935 is also a spring.

[0083] The energy storage stop switch 94 includes a stop push member 941 and a stop switch element 942. One end of the stop push member 941 is coiled and the other end is generally straight, and it is used to rotate and trigger the stop switch element 942 when the piston 44 moves to its position. The stop switch element 942 is also a micro switch.

[0084] In this embodiment, the control module is a circuit board assembly 80, including a circuit board 81, a power button unit 82, and multiple wires (not shown in the figure). The power button unit 82 is connected to one side of the circuit board 81. When the operator presses the power button on this unit, the nail gun 10 is turned on. The aforementioned micro switch and motor are all connected to the circuit board 81 via wires.

[0085] The installation positions of the above-mentioned components will be described in detail below with reference to the housing structure. In this embodiment, the housing of the nail gun 10 includes a left housing, a right housing, and a firing pin baffle.

[0086] Figure 11 , Figure 12are respectively a perspective view and an orthographic projection view of the left casing in the present embodiment.

[0087] As shown in Figures 11-12 , the left casing 20 can be divided into a left casing upper body part 21, a left casing lower body part 22, a left casing handle part 23 and a left casing connecting part 24.

[0088] Figure 13 , Figure 14 are respectively a perspective view of the right casing in the present embodiment.

[0089] As shown in Figures 13-14 , the right casing 30 can be divided into a right casing upper body part 31, a right casing lower body part 32, a right casing handle part 33 and a right casing connecting part 34, which correspond to the left casing 20.

[0090] The inner surfaces of the left casing upper body part 21 and the right casing upper body part 31 are both provided with grid-shaped protrusions, which form a receiving groove for accommodating the regulation frame 41 when the two parts are combined. The protrusions on the inner surfaces of the casings also serve as reinforcing ribs. In addition, a replacement opening for replacing the striker 60 is formed at the upper end of the combined left casing upper body part 21 and right casing upper body part 31, and the striker baffle 12 is detachably installed at the replacement opening.

[0091] Figure 15 is an enlarged view of the middle frame A inner part. Figure 12

[0092] As shown in Figure 15 , the left casing handle part 23 of the left casing 20 is provided with a circular presser mounting hole 234 at the connecting position with the left casing upper body part 21, and the right casing 30 is also provided with a circular mounting hole at the corresponding position. The connecting column part 9112 at the upper end of the nail shooting presser 911 is rotatably embedded in the presser mounting hole 234 of the left casing 20 and the corresponding mounting hole of the right casing 30, so that the nail shooting presser 911 can rotate around the connecting column part 9112 as the rotation axis.

[0093] The left casing handle part 23 is provided with a first switch notch 235 and a second switch notch 236 on the side close to the left casing connecting part 24, and the right casing 30 is also provided with corresponding notches at the corresponding positions. The nail shooting presser 911 is partially accommodated in the left casing handle part 23, and an arc-shaped side thereof is exposed from the first switch notch 235. The protection presser 921 is partially accommodated in the left casing handle part 23, and a side thereof is exposed from the second switch notch 236. The inner surface of the left casing handle part 23 at the lower end of the first switch notch 235 is also provided with a handle member limiting groove 2351 for limiting the rotation range of the nail shooting presser 911, and under the action of the return member, the limiting protrusion 9115 at the bottom of the nail shooting presser 911 is abutted against the handle member limiting groove 2351.

[0094] ​The inner surface of the left handle part 23 of the left casing 20 has multiple protrusions, forming a nail shooting switch accommodating part 231 and a protection switch accommodating part 232. The inner surface of the right handle part 33 of the right casing 30 has corresponding nail shooting switch limiting parts 331 and protection switch limiting parts 332.

[0095] The nail shooting switch accommodating part 231 includes a nail shooting reset part accommodating groove 2311 and a nail shooting element fitting part 2312. The nail shooting reset part accommodating groove 2311 is a square groove with one side open, used to accommodate a nail shooting reset part 913 (spring), one end of which abuts against the side wall of the nail shooting reset part accommodating groove 2311, and the other end is sleeved on the spring connecting column part 9113 of the nail shooting pressing part 911. The nail shooting element fitting part 2312 is arranged between the outer walls of the nail shooting reset part accommodating groove 2311 and the protection reset part accommodating groove 2321, and is used to fix a nail shooting switch element 912 (micro switch). The nail shooting element fitting part 2312 includes two nail shooting element limiting protrusions 2312a, two nail shooting element fixing protrusions 2312b, and a nail shooting element limiting strip 2312c. In this embodiment, the nail shooting element fixing protrusions 2312b are two cylindrical protrusions, the size and arrangement of which are adapted to the two through holes on the micro switch, and the micro switch is fixed by passing through the two through holes. The two nail shooting element limiting protrusions 2312a are square columnar protrusions, used to limit one side of the micro switch in the width direction, and the other is a strip-shaped protrusion, used to limit one side of the micro switch in the length direction, and the other side of the micro switch in the length direction is limited by the side wall of the nail shooting reset part accommodating groove 2311.

[0096] In addition, the nail shooting reset part accommodating groove 2311 has a protruding beveled edge part 2311a on the opening side, which abuts against the nail shooting pressing part 911 when it is pressed down and rotated into place, thereby limiting the rotation range of the nail shooting pressing part 911.

[0097] The nail shooting switch limiting part 331 is a grid-shaped protrusion, the structure of which corresponds to the nail shooting reset part accommodating groove 2311 and the nail shooting element fitting part 2312, and is used to press and limit the other side of the micro switch and the spring.

[0098] The protection switch accommodating portion 232 includes a protection reset member accommodating groove 2321 and a protection element fitting portion 2322. The protection reset member accommodating groove 2321 is also a square groove with one side open, and is used to accommodate a protection reset member 923 (spring). One end of the protection reset member 923 abuts against the side wall in the groove of the protection reset member accommodating groove 2321, and the other end abuts against the groove bottom of the circular groove on one side of the protection pressing member 921. The protection element fitting portion 2322 includes three protection element limiting protrusions 2322a and three protection element fixing protrusions 2322b, and has a structure similar to that of the nail shooting element fitting portion 2312. The difference is that, compared with the nail shooting switch accommodating portion 231, the protection element fitting portion 2322 is inclined as a whole, so that the trigger spring of the micro switch installed thereon is inclined upward, and thus the protection pressing member 921 can be closer to the nail shooting pressing member 911, facilitating operation.

[0099] The protection switch limiting portion 332 is also a grid-shaped protrusion, and has a structure corresponding to the protection reset member accommodating groove 2321 and the protection element fitting portion 2322, and is used to press and limit the other side of the micro switch and the spring.

[0100] Figure 16 is Figure 12 An enlarged view of the inner portion of the middle frame B.

[0101] As Figure 16 shown, the inner surface of the left shell upper body portion 21 also has a safety switch accommodating portion 211 and a stop switch accommodating portion 212, which are formed between the grid-shaped protrusions.

[0102] The safety switch accommodating portion 211 is arranged near the muzzle 50, and includes a connecting rod accommodating groove 2111, a safety reset member accommodating groove 2112, a bent rod accommodating groove 2113, and a safety element fitting portion 2114.

[0103] The connecting rod accommodating groove 2111 is a square groove with one side open in the length direction and the width direction. The opening in the width direction is larger, and there is a ring-shaped protrusion 2111a in the groove. The lower surface of the ring-shaped protrusion 2111a is a flat surface. The connecting rod 932 is fitted in the connecting rod accommodating groove 2111, and the two ends thereof extend out from the two openings, respectively, and the middle portion is limited by the lower surface of the ring-shaped protrusion 2111a and the groove wall.

[0104] The safety reset member accommodating groove 2112 is adjacent to the connecting rod accommodating groove 2111, and is also a square groove with one side open in the width direction.

[0105] The bending rod accommodating groove 2113 is located below the safety reset member accommodating groove 2112 and is adjacent to it. The two sides of the bending rod accommodating groove 2113 are open, one side of which is in communication with the safety element embedding part 2114, and the other side is in communication with the safety reset member accommodating groove 2112. One end of the bending rod 933 is embedded in the bending rod accommodating groove 2113, and the other end extends to the safety reset member accommodating groove 2112 and abuts with one end of the connecting rod 932. One end of the safety reset member 935 (spring) abuts with the side wall of one side of the groove in the safety reset member accommodating groove 2112, and the other end abuts with one end of the bending rod 933.

[0106] The curved rod 931 is installed on the gun nozzle 50 through the limiting plate and can move in the predetermined reciprocating direction. One end of the curved rod 931 abuts with one end of the connecting rod 932.

[0107] The safety element embedding part 2114 includes a plurality of safety element limiting protrusions 2114a and two safety element fixing protrusions 2114b. The safety element limiting protrusions 2114a are columnar or special-shaped protrusions, which are respectively used for limiting the length direction of the micro switch and one side of the width direction. The two safety element fixing protrusions 2114b are cylindrical protrusions. The micro switch is installed between the safety element limiting protrusions 2114a, and the safety element fixing protrusions 2114b pass through the two through holes of the micro switch to fix the micro switch. The trigger spring of the micro switch is located at the opening of one side of the bending rod accommodating groove 2113. In addition, a displacement structure is formed between the adjacent safety element limiting protrusions 2114a, which is used for displacing the terminal of the micro switch to connect the wire.

[0108] Therefore, when the operator presses the gun nozzle 50, the curved rod 931 on the gun nozzle 50 is pressed and moves in the spring energy storage direction, pushing the connecting rod 932 and the bending rod 933 to move. The end of the bending rod 933 presses the trigger spring of the micro switch, generating a corresponding electrical signal.

[0109] The stop switch accommodating part 212 includes a stop element embedding part 2121 and a push piece accommodating groove 2122. The structure of the stop element embedding part 2121 is similar to that of the safety element embedding part 2114, and will not be described in detail. The push piece accommodating groove 2122 is provided with a cylindrical protrusion in the groove. One end of the stop push piece 941 is installed on the cylindrical protrusion and can rotate around the protrusion as the pivot. The other end of the stop push piece 941 is located at a limiting opening 2123 of the grid-shaped protrusion, and the rotation amplitude of the stop push piece 941 is limited by the limiting opening 2123.

[0110] When the energy storage assembly 43 (spring) is not fully energized, the other end of the stop push piece 941 abuts with the lower end of the limiting opening 2123 under the action of gravity. When the energy storage assembly 43 is fully energized, the piston 44 reaches the stop push piece 941 and pushes it upwards, pressing the trigger spring of the micro switch.

[0111] After the installation is completed, the other side of the curved rod 931, the connecting rod 932, the bent rod 933, and the micro switch is pressed and limited by one side of the frame 41.

[0112] In addition, the grid-shaped protrusions on the inner surface of the left shell upper body part 21 are also provided with multiple wire routing gaps 219 for the wires of the two micro switches.

[0113] The inner surfaces of the lower halves of the left shell connecting part 24 and the right shell connecting part 34 are both provided with multiple annular protrusions. When combined, the lower halves form a cylindrical space with a larger diameter for accommodating the motor 71. The inner surface of the upper half of the left shell connecting part 23 is provided with a pair of speed reduction unit limiting parts 241, which are generally cuboid in shape. Between the pair of speed reduction unit limiting parts 241, the inner surface of the casing is provided with grid-shaped protrusions, and the speed reduction and torque increasing unit 72, which is I-shaped in cross-section, can be fitted between the pair of speed reduction unit limiting parts 231.

[0114] The inner surface of the left shell lower body part 22 is provided with a circuit board accommodating part 221 and a wire storage cavity 222.

[0115] Figure 17 is Figure 12 An enlarged view of the inner part of the middle frame C.

[0116] As Figure 17 shown, the circuit board accommodating part 221 includes a pair of circuit board fitting grooves 2211 and a pair of button unit limiting grooves 2212.

[0117] The circuit board fitting grooves 2211 are square grooves with one side open, and the openings of the pair of circuit board fitting grooves 2211 are opposite to each other. The two sides of the circuit board 81 in the width direction are respectively fitted in the pair of circuit board fitting grooves 2211. In this embodiment, the extension length of the circuit board fitting grooves 2211 is approximately equal to the width of the circuit board 81, so that the circuit board 81 can be stably fitted therein.

[0118] The button unit limiting grooves 2212 are L-shaped groove bodies in cross-section, and the two sides of the power button unit 82 in the width direction are respectively placed on the pair of button unit limiting grooves 2212. The side of the left shell lower body part 22 facing the left shell upper body part 21 is also provided with a gap, and the right shell lower body part 32 is also provided with a corresponding gap at the corresponding position. The power button unit 82 is exposed from the gap and is limited by the pair of gaps.

[0119] The wire storage cavity 222 is formed on one side of the circuit board accommodating portion 221, and is used for storing part of the wires. The wire storage cavity 222 has a hollow cylindrical protrusion 2221, and the longer wires can be wound around the cylindrical protrusion 2221 for storage. The cylindrical protrusion 2221 is also used for mounting screws, and the right shell 30 has a matching cylindrical protrusion at the corresponding position.

[0120] The left shell handle portion 23 also has a wire embedding portion 233 below the left shell lower body portion 22, which is used for fixing a plurality of wires connected between the circuit board 81 and the micro switch. The wire embedding portion 233 includes a plurality of wire limiting protrusions 2331. In this embodiment, the wire limiting protrusions 2331 are cylindrical protrusions, and the five wire limiting protrusions 2331 are arranged in a straight line. The distance between adjacent two wire limiting protrusions 2331 is slightly smaller than the diameter of the wire, so that the plurality of wires can be embedded between the two wire limiting protrusions 2331 for limiting and fixing. After embedding the wires, the wires can be further adhered to the inner surface of the left shell 20 by white glue or the like above or below the wire embedding portion 233.

[0121] Based on the above structure, the internal components such as the micro switch, spring, and wire can be accommodated in the left shell 20, and the right shell 30 is only used for pressing and limiting, so that the assembly of the two shells is facilitated.

[0122] In use, the operator presses the gun nozzle 51 of the nail gun 10 against the target position, presses down the trigger rod assembly, presses down the protection pressing piece 921, and then presses down the nail shooting pressing piece 911 to realize firing.

[0123] This embodiment also provides a multi-purpose nail gun system, which includes the above safety nail gun 10, a plurality of nail magazine assemblies 50 of different models, and corresponding models of the firing pins 60, which are used for firing different models of nails, as shown in the following Table 1.

[0124] Table 1: Nail gun model information table

[0125]

[0126] Among them, the model of the firing pin 60 corresponds to the length of the nail.

[0127] Figure 18 is the exploded view of the nail gun in this embodiment.

[0128] As Figure 18 shown, after the firing pin baffle 12 is removed, the firing pin 60 can be removed and replaced through the replacement opening, and the nail magazine assembly 50 can also be removed and replaced.

[0129] The nail magazine assembly 50 comprises a nose 51 and a nail magazine 52, which can be disassembled as a whole. The nose 51 is provided with a pair of nose connecting holes 511 at one end close to the shell of the nail gun 10, and the limiting base 411 is provided with a pair of corresponding nail magazine head mounting holes 4112 at the upper end. The nose 51 can be fixedly connected to the limiting base 411 through connecting members.

[0130] The end of the nail magazine 52 away from the nose 51 is provided with a nail magazine connecting plate 521 and a side hook type nail magazine wrench 522. The nail magazine connecting plate 521 extends along the width direction of the nail magazine 52, and the end of the extension is provided with a connecting hole 5211, and the middle part close to the other end is provided with a hooking hole. The side hook type nail magazine wrench 522 is arranged on one surface along the thickness direction of the nail magazine 52, and is used to hook the nail magazine connecting plate 521. When disassembling the nail magazine assembly 50, the fasteners are removed, and then the side hook type nail magazine wrench 522 is pressed by hand to remove the tail of the nail magazine assembly 50.

[0131] Figure 18 The side hook type nail magazine is suitable for long nails.

[0132] Figure 19 The side hook type nail magazine is suitable for long nails.

[0133] As shown in Figure 19 , the rear hook type nail magazine 52 is used for short nails, and the end of the rear hook type nail magazine 52 away from the nose 51 is provided with a nail magazine connecting plate 521 and a rear hook type nail magazine wrench 523. The rear hook type nail magazine wrench 523 is arranged on one side along the width direction of the nail magazine 52, and is on the same side as the nail magazine connecting plate 521, and is used to hook the nail magazine connecting plate 521.

[0134] The shell is also provided with a nail magazine connecting part 25, which is provided with two nail magazine tail connecting holes 251 for connecting the tails of the above two kinds of nail magazines 52 through fasteners.

[0135] Figure 20 The side hook type nail magazine is suitable for long nails.

[0136] As shown in Figure 20 , the bottom of the nail magazine connecting part 25 is also provided with an inwardly recessed avoiding groove 252 for accommodating the rear hook type nail magazine wrench 523 of the rear hook type nail magazine 52. The fingers of the operator can extend into the avoiding groove 252 to press the rear hook type nail magazine wrench 523 for disassembly.

[0137] The process of switching the model of the nail gun comprises the following steps:

[0138] Step S1, selecting corresponding firing pins 60 and nail magazine assemblies 50 according to the type of nails;

[0139] Step S2, remove the fastener on the striker plate 12, and remove the striker plate 12;

[0140] Step S3, remove the striker pin on the original striker 60, and remove the original striker 60 from the muzzle 51 and the replacement opening of the housing;

[0141] Step S4, remove the fastener on the head and tail of the original magazine assembly 50, and press the magazine wrench to remove the original magazine assembly 50 as a whole;

[0142] Step S5, install the replacement magazine assembly 50 on the nail gun 10, and install the fastener on the head and tail of the replacement magazine assembly 50, respectively;

[0143] Step S6, place the replacement striker 60 into the replacement opening of the housing, with the tail inserted into the muzzle 51, the latch hole of the head aligned with the striker mounting hole on the piston 44, and the striker pin inserted;

[0144] Step S7, install the striker plate 12 to the replacement opening of the housing, and install the fastener.

[0145] Through the above steps, the model switching of the nail gun 10 is completed, and the nail gun 10 can be used as a nail gun of a corresponding model corresponding to the target nail.

[0146] Effects of the Embodiment

[0147] According to the safety nail gun 10 provided by the embodiment, the safety nail gun 10 comprises a housing, a striker 60, a striker driving mechanism 40, a magazine assembly 50, and a control mechanism, wherein the control mechanism comprises a shooting switch 91, a protection switch 92, and a safety switch 93, the pressing pieces of the shooting switch 91 and the protection switch 92 are arranged at the handle of the nail gun 10, and the trigger is pressed by the fingers of the operator, and the trigger lever assembly of the safety switch 93 is arranged at the muzzle 51, and the trigger is triggered when the operator presses the muzzle 51 against the target position. Therefore, the shooting pressing piece 911 can be pressed to fire when the trigger lever assembly is pressed down and the protection pressing piece 921 is pressed down. Through the double insurance design of the protection switch 92 and the safety switch 93, the accidental touch of the operator when pressing the switch at the muzzle 51 with force can be effectively avoided, and the use safety of the nail gun 10 is further improved. In addition, the protection pressing piece 921 is also arranged at the handle and close to the shooting pressing piece 911, so that the operator can conveniently operate the two switches at the handle with one hand, without additional burden on the operator.

[0148] In the embodiment, the nail shooting switch 91, the protection switch 92 and the safety switch 93 are all micro switches, and have springs for resetting the pressing parts and the trigger rod assembly; the inner surface of the left shell 20 has protrusions and reinforcing ribs, which form accommodating portions for accommodating the micro switches, the springs and the trigger rod assembly; and the inner surface of the right shell 30 has grid-shaped protrusions, which form limiting portions for limiting the micro switches, the springs and the trigger rod assembly. Therefore, when assembling the shell, the internal components can be installed in the left shell 20, and then the right shell 30 is connected by pressing, so that the installation is more convenient and fast.

[0149] According to the multi-purpose nail gun system, the safety nail gun 10, the plurality of nail magazine assemblies 50 of different types and the plurality of firing pins 60 of different types are provided, the nail magazine assemblies 50 are detachably connected to the shell, and the nail gun 10 can be adapted to different types of nails by replacing the firing pins 60 and the nail magazine assemblies 50, so that the nail gun 10 is convenient and practical, and the cost of tools is reduced.

[0150] In the embodiment, the nail gun 10 can be changed into seven nail guns of different types by replacing the nail magazine assemblies 50 and the firing pins 60, and the application range is wide. The upper part of the shell has a replacement opening and a detachable firing pin baffle 12, the firing pin 60 can be replaced through the replacement opening after the firing pin baffle 12 is removed, the nail magazine assembly 50 can be replaced as a whole, only four screws need to be replaced, and the operation of switching the type is also very convenient and fast, so that the nail gun 10 is highly practical in a complex construction site.

[0151] The above embodiment is only used for illustrating the specific implementation of the present application, and the present application is not limited to the description range of the above embodiment.

[0152] In the above embodiment, the firing pin 60 is connected to the upper side of the piston 44, and in an alternative solution, the firing pin 60 can be connected to the left side or the right side of the piston 44.

[0153] In the above embodiment, the energy storage assembly includes a force spring, and in an alternative solution, the energy storage assembly can also be pneumatic, that is, includes a cylinder, and the piston 44 moves under the drive of the cylinder, and the corresponding technical effects can also be achieved.

[0154] In the above embodiment, two nail magazine connecting holes 251 are formed on the nail magazine connecting portion 25 of one side of the shell, and are respectively used for connecting two nail magazines 52, and in an alternative solution, according to actual needs, only one nail magazine connecting hole 251 can be provided, or more nail magazine connecting holes 251 can be provided according to the size of the nail magazine 52.

[0155] In the above embodiment, the left casing 20 is used as a containing casing, and the inner surface thereof is provided with a plurality of containing portions for containing the internal components; the right casing 30 is used as a limiting casing, and the inner surface thereof is provided with a plurality of corresponding limiting portions for limiting the internal components, so as to facilitate the combination of the two casings. In an alternative, the design of the left and right casings can be changed, i.e., the right casing 30 is provided with containing portions, and the left casing 20 is provided with limiting portions, and the corresponding technical effects can also be achieved.

[0156] In the above embodiment, the extension length of the circuit board embedding groove 2211 is substantially equal to the width of the circuit board 81, so that the circuit board 81 can be stably embedded therein. In an alternative, the extension length of the circuit board embedding groove 2411 can also be shorter, greater than 2 / 3 of the width of the circuit board 81, so that the circuit board 81 is not easy to be taken out.

[0157] In the above embodiment, the inner surfaces of the left casing 20 and the right casing 30 are provided with strip-shaped protrusions, mesh-shaped protrusions and the like for containing or limiting the internal components, and these structures are also used as reinforcing ribs of the inner surfaces of the casings, so as to be capable of strengthening the overall structural strength of the casings.

Claims

1. A safety nail gun characterized by, The application relates to a nail gun, which comprises the following parts: a striker for hitting a nail to make it shoot out; a striker driving mechanism for driving the striker to hit, which has a driving motor; a control mechanism for controlling the driving motor to start or stop; a shell, in which the striker, the striker driving mechanism, the driving motor and the control mechanism are accommodated; and a nail magazine assembly, which is detachably connected to the shell and comprises a gun nozzle and a nail magazine connected to the gun nozzle. The shell has a handle part for an operator to hold and a gun nozzle connecting part for connecting the gun nozzle. The control mechanism comprises the following parts: a shooting switch, which has a shooting presser arranged on the handle part, a shooting switch element and a shooting reset part, the shooting switch element generates a shooting electric signal when the shooting presser is pressed, and the shooting reset part is used for resetting the pressed shooting presser; a protection switch, which has a protection presser arranged on the handle part and close to the shooting presser, a protection switch element and a protection reset part, the protection switch element generates a protection electric signal when the protection presser is pressed, and the protection reset part is used for resetting the pressed protection presser; a safety switch, which has a trigger lever assembly arranged on the gun nozzle and the gun nozzle connecting part, a safety switch element and a safety reset part, the safety switch element generates a safety electric signal when the trigger lever assembly is pressed, and the safety reset part is used for resetting the pressed trigger lever assembly; and a control module, which is electrically connected with the driving motor, the shooting switch, the protection switch and the safety switch respectively. The shooting switch element, the protection switch element and the safety switch element are all micro switches, and the shooting reset part, the protection reset part and the safety reset part are all spring parts. The trigger lever assembly comprises a curved lever, a connecting lever and a bent lever which are abutted in sequence. The curved lever is movably connected to the gun nozzle, and the connecting lever and the bent lever are movably arranged in the shell. The shell comprises the following parts: an accommodating shell, which has a plurality of accommodating parts on the inner surface and is used for accommodating the micro switches, the spring parts, the connecting lever and the bent lever respectively; and a limiting shell, which is detachably connected to the accommodating shell and has a plurality of limiting parts on the inner surface, the positions of the limiting parts correspond to the positions of the accommodating parts respectively, and the limiting parts are used for limiting the micro switches or the spring parts accommodated in the corresponding accommodating parts. The safety switch accommodating part is arranged close to the gun nozzle and comprises a connecting lever accommodating groove, a safety reset part accommodating groove, a bent lever accommodating groove and a safety switch element fitting part, which are used for arranging the connecting lever, the safety reset part, the bent lever and the safety switch element respectively. The connecting lever accommodating groove is a square groove, which has an opening on one side of the length direction and the width direction respectively, and has a ring-shaped protrusion in the groove, the connecting lever is fitted in the connecting lever accommodating groove, the two ends of the connecting lever extend out from the two openings respectively, and the middle part of the connecting lever is limited by the ring-shaped protrusion and the groove wall. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The safety reset member accommodating groove is adjacent to the connecting rod accommodating groove, and the safety reset member is arranged in the safety reset member accommodating groove, The bent rod accommodating groove is located below and adjacent to the safety reset member accommodating groove, and is open on both sides, one side of which is communicated with the safety element embedding part, and the other side is communicated with the safety reset member accommodating groove, one end of the bent rod is embedded in the bent rod accommodating groove, and the other end extends to the safety reset member accommodating groove and abuts against one end of the connecting rod, The safety element embedding part includes a plurality of limiting protrusions and two fixing protrusions, the limiting protrusions are respectively used for limiting the two sides in the length direction and one side in the width direction of the micro switch, and the two fixing protrusions pass through the two through holes on the micro switch.

2. The safety nail gun according to claim 1, wherein: wherein, The control module is a circuit board, and the micro switches are connected to the circuit board through wires.

3. The safety nail gun according to claim 1, wherein: wherein The striker driving mechanism includes a piston for driving the striker, The tail of the striker is detachably connected to the side of the piston, The shell further includes a striker baffle, The accommodating shell and the limiting shell are connected to form a replacement opening at the upper end thereof, the replacement opening exposes the tail of the striker, The striker baffle is detachably installed at the replacement opening.

4. The safety nail gun according to claim 3, wherein: wherein One end of the muzzle has a muzzle connecting hole, The nail magazine away from the muzzle is provided with a nail magazine connecting plate, one end of the nail magazine connecting plate extends from one side of the nail magazine, and the end has a nail magazine connecting hole, The striker driving mechanism includes a regulation frame, the regulation frame includes a limiting base, when arranged in the shell, the limiting base is located at the muzzle connecting part, and the upper end of the limiting base is exposed from the replacement opening, The upper end of the limiting base has a nail magazine head mounting hole, One side of the shell has a nail magazine tail mounting hole, One end of the muzzle is installed on the limiting base through the muzzle connecting hole, the nail magazine head mounting hole and a fastener, One end of the nail magazine is installed on one side of the shell through the nail magazine connecting hole, the nail magazine tail mounting hole and a fastener.

5. The safety nail gun according to claim 4, wherein: wherein The nail magazine is a side hook type nail magazine, and the end away from the muzzle is further provided with a side hook type nail magazine wrench for hooking the nail magazine connecting plate, The side hook type nail magazine wrench is arranged on one side of the thickness direction of the nail magazine.

6. The safety nail gun according to claim 4, wherein: wherein The nail magazine is a rear hook type nail magazine, and the end away from the muzzle is further provided with a rear hook type nail magazine wrench for hooking the nail magazine connecting plate, The rear hook type nail magazine wrench is arranged on one side of the width direction of the nail magazine, and the direction of extension of the rear hook type nail magazine wrench is the same as that of the nail magazine connecting plate, The bottom of the shell further has an inwardly recessed avoiding groove, When the cartridge assembly is connected to the housing, the rear hook cartridge wrench is accommodated in the escape groove.

7. A multi-purpose nail gun system characterized by, Comprise: A safety nail gun; A plurality of different models of cartridge assemblies; And A plurality of different models of strikers, Wherein the safety nail gun is the safety nail gun of any one of claims 1-6, Each model of the cartridge assembly and each model of the striker correspond to each model of the nail.

Images