CN219152786U - Safety nail gun and multipurpose nail gun system - Google Patents

Abstract

The utility model provides a safety nail gun and a multipurpose nail gun system, which comprise a shell, a firing pin driving mechanism, a nail box assembly and a control mechanism, wherein the control mechanism comprises a nail shooting switch, a protection switch and a safety switch, pressing pieces of the nail shooting switch and the protection switch are arranged at a handle of the nail gun, an operator presses and triggers the nail gun by fingers, a triggering rod assembly of the safety switch is arranged at a gun nozzle, and the operator triggers the gun nozzle when pressing the gun nozzle at a target position. Therefore, when the trigger lever assembly is pressed down and the protecting pressing piece is pressed down, the nail shooting pressing piece is pressed down again to perform firing. Through the double insurance design of the protection switch and the safety switch, the false touch condition of an operator when the switch at the gun nozzle is pressed forcefully can be effectively avoided, and the use safety of the nail gun is further improved. In addition, the protecting pressing piece is also arranged at the handle and close to the nail shooting pressing piece, so that an operator can conveniently operate two switches at the handle by one hand, and no extra burden is caused to the operator.

Description

Safety nail gun and multipurpose nail gun system

Technical Field

The utility model belongs to the technical field of fastening tools, and particularly relates to a safety nailing gun and a multipurpose nailing gun system.

Background

Nail guns are a fastening tool, which are commonly used in construction, and strike and eject nails through their striker. Part of nail guns in the current market can be fired by directly pulling a trigger under the condition of electrifying, and great potential safety hazards exist. Therefore, other nail guns on the market are designed with a certain safety mechanism, a curved rod is arranged at the position of a gun nozzle, and under the condition that the nail gun is electrified, an operator presses the gun nozzle against a wall or the like, so that the curved rod is pressed down, and then a trigger is pulled to realize firing. Compared with a control mode of directly pulling the trigger to fire, the mode improves the safety factor, however, because the crank is arranged at the gun nozzle, an operator needs to press the gun nozzle forcefully, in the process, the operator can press the trigger at the handle easily for forcefully, and thus the false firing is caused.

The nail gun has great nail-shooting force and can cause serious consequences when in false firing. Therefore, in order to solve the above-mentioned problems, a nail gun having a more optimal design is needed, which can ensure the use safety of the nail gun.

In addition, a plurality of nails with different sizes are often used in construction, at present, different types of nails need to be correspondingly switched, a plurality of nails need to be equipped on site, and the cost is high.

Disclosure of Invention

The utility model aims to solve the problems, and aims to provide a safety nailing gun and a multipurpose nailing gun system capable of reducing potential safety hazards, which adopt the following technical scheme:

the utility model provides a safety nailing gun, which is characterized by comprising the following components: a striker for striking a nail to eject it; the firing pin driving mechanism is used for driving the firing pins to strike; the driving motor is used for driving the firing pin driving mechanism to store energy and shoot nails; the control mechanism is used for controlling the driving motor to start or stop; and a housing in which the striker, the striker driving mechanism, the driving motor, and the control mechanism are all accommodated, wherein the housing has a handle portion for an operator to grasp and a gun nozzle connecting portion for connecting a gun nozzle, the control mechanism includes: a nail shooting switch having a nail shooting pressing piece and a nail shooting switch element, wherein the nail shooting pressing piece is arranged on the handle part, and the nail shooting switch element generates a nail shooting electric signal when the nail shooting pressing piece is pressed down; a protection switch having a protection pressing member provided on the handle portion and close to the nail switch, and a protection switching element for generating a protection electric signal when the protection pressing member is pressed down; a safety switch having a trigger lever assembly provided at the gun nozzle and the gun nozzle connecting portion, and a safety switching element for generating a safety electric signal when the trigger lever assembly is pressed; and the control module is respectively and electrically connected with the driving motor, the nail shooting switch, the protection switch and the safety switch.

The safety nail gun provided by the utility model can be further characterized in that the nail shooting switch further comprises a nail shooting reset piece which is connected with the nail shooting pressing piece and used for resetting the pressed nail shooting pressing piece, the protection switch further comprises a protection reset piece which is abutted with the protection pressing piece and used for resetting the pressed protection pressing piece, and the safety switch further comprises a safety reset piece which is abutted with the trigger rod assembly and used for resetting the pressed trigger rod assembly.

The safety nailing gun provided by the utility model can be further characterized in that the nailing 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 nailing reset piece, the protection reset piece and the safety reset piece are all spring pieces.

The safety nail gun provided by the utility model can also have the technical characteristics that the shell comprises: the housing is provided with a plurality of housing parts on the inner surface, and the housing parts are respectively used for housing the microswitches and the spring pieces; and the shell for limiting is matched with the shell for accommodating and detachably connected to the shell for accommodating, and the inner surface of the shell for accommodating is provided with a plurality of limiting parts, the positions of which respectively correspond to the accommodating parts and are used for limiting the micro switch or the spring part accommodated in the corresponding accommodating parts.

The safety nailing gun provided by the utility model can be further characterized in that the trigger rod assembly comprises a bent rod, a connecting rod and a bent rod which are sequentially abutted, the bent rod is movably connected to the gun nozzle, the connecting rod and the bent rod are movably arranged in the accommodating machine shell, and the inner surface of the accommodating machine shell is further provided with an accommodating part for accommodating the connecting rod and the bent rod.

The safety nailing gun provided by the utility model can be further characterized in that the striker driving mechanism comprises a piston for driving the striker, the tail part of the striker is detachably connected to the side edge of the piston, the shell further comprises a striker baffle, after the accommodating shell is connected with the limiting shell, a replacement opening is formed at the upper end of the accommodating shell, the replacement opening enables the tail part of the striker to be exposed, and the striker baffle is detachably arranged at the replacement opening.

The safety nail gun provided by the utility model can also have the technical characteristics that: and the nail box assembly is detachably connected with the firing pin driving mechanism and the shell and comprises a gun nozzle and a nail box connected with the gun nozzle.

The safety nailing gun provided by the utility model can be further characterized in that one end of the gun nozzle is provided with a gun nozzle connecting hole, one end of the nail box far away from the gun nozzle is provided with a nail box connecting plate, one end of the nail box connecting plate extends out of one side of the nail box, the nail box connecting plate is provided with a nail box connecting hole, the collision driving mechanism comprises a regulation frame, the regulation frame comprises a limit base, when the regulation frame is arranged in the shell, the limit base is positioned at the gun nozzle connecting part, the upper end of the limit base is exposed out of the replacement opening, the upper end of the limit base is provided with a nail box head mounting hole, one side of the shell is provided with a nail box tail mounting hole, one end of the gun nozzle is mounted on the limit base through the gun nozzle connecting hole, the nail box head mounting hole and a fastener, and one end of the nail box is mounted on one side of the shell through the nail box connecting hole, the nail box tail mounting hole and the fastener.

The safety nail gun provided by the utility model can also have the technical characteristics that the nail box is a side hook type nail box, one end of the nail box, which is far away from the gun nozzle, is also provided with a side hook type nail box spanner for hooking the nail box connecting plate, and the side hook type nail box spanner is arranged at one side of the nail box in the thickness direction.

The safe nail gun provided by the utility model can be further characterized in that the nail box is a rear hook type nail box, one end of the nail box, which is far away from the gun nozzle, is further provided with a rear hook type nail box spanner for hooking the nail box connecting plate, the rear hook type nail box spanner is arranged on one side of the nail box in the width direction and is the same as the extending direction of the nail box connecting plate, and the bottom of the shell is further provided with an inward concave avoidance groove, and when the nail box assembly is connected to the shell, the rear hook type nail box spanner is accommodated in the avoidance groove.

The utility model provides a multipurpose nailing gun system, which is characterized by comprising: the safety nailing gun; a plurality of different types of magazine assemblies; and a plurality of different types of striker, wherein the magazine assembly and the striker correspond to respective types of staples.

The actions and effects of the utility model

The safety nailing gun comprises a shell, a firing pin driving mechanism, a nail box assembly and a control mechanism, wherein the control mechanism comprises a nailing switch, a protection switch and a safety switch, pressing pieces of the nailing switch and the protection switch are arranged at a handle of the nailing gun, an operator presses and triggers the nailing gun by fingers, a triggering rod assembly of the safety switch is arranged at a gun nozzle, and the operator triggers the gun nozzle when pressing the gun nozzle against a target position. Therefore, when the trigger lever assembly is pressed down and the protecting pressing piece is pressed down, the nail shooting pressing piece is pressed down again to perform firing. Through the double insurance design of the protection switch and the safety switch, the false touch condition of an operator when the switch at the gun nozzle is pressed forcefully can be effectively avoided, and the use safety of the nail gun is further improved. In addition, the protecting pressing piece is also arranged at the handle and close to the nail shooting pressing piece, so that an operator can conveniently operate two switches at the handle by one hand, and no extra burden is caused to the operator.

The multipurpose nailing gun system comprises the safe nailing gun, a plurality of nail box assemblies with different types and a plurality of firing pins with different types, and the nail box assemblies are detachably connected to the shell corresponding to nails with different types, so that the nailing gun can be suitable for nails with different types through disassembling and assembling the firing pins with different types and the nail boxes, a plurality of nailing guns are not required to be arranged on a construction site, convenience and practicability are realized, and the cost of tool arrangement can be reduced.

Drawings

FIG. 1 is a perspective view of a nailer in an embodiment of the present utility model;

FIG. 2 is a perspective view of a portion of the construction of a nail gun in accordance with an embodiment of the present utility model;

FIG. 3 is an orthographic view of a portion of the structure of a nail gun in accordance with an embodiment of the present utility model;

FIG. 4 is a perspective view of a striker driving mechanism in an embodiment of the present utility model;

FIG. 5 is an exploded view of the striker driving mechanism in an embodiment of the present utility model;

FIG. 6 is a perspective view of a piston in an embodiment of the utility model;

FIG. 7 is a schematic illustration of the drive wheel and piston engagement of an embodiment of the present utility model;

FIG. 8 is a mounting block diagram of the control mechanism in the left-hand housing handle section in accordance with an embodiment of the present utility model;

fig. 9 is a perspective view of a pressing member for nail shooting in the embodiment of the present utility model.

FIG. 10 is a view showing the construction of the installation of the control mechanism in the upper main body portion of the left housing in the embodiment of the present utility model;

FIG. 11 is a perspective view of a left housing in an embodiment of the utility model;

FIG. 12 is a front perspective view of a left housing in an embodiment of the utility model;

FIG. 13 is a perspective view of the right housing in an embodiment of the utility model;

FIG. 14 is a front perspective view of the right housing in an embodiment of the utility model;

FIG. 15 is an enlarged view of the inner portion of frame A of FIG. 12;

FIG. 16 is an enlarged view of the inner portion of frame B of FIG. 12;

FIG. 17 is an enlarged view of the inner portion of frame C of FIG. 12;

FIG. 18 is an exploded view of the nail gun of the present embodiment;

FIG. 19 is a perspective view of an external hook magazine according to an embodiment of the present utility model;

FIG. 20 is a schematic view of an external hook magazine according to an embodiment of the present utility model.

Reference numerals:

a nailing gun 10; a baffle 12; a left casing 20; a left case upper body part 21; a safety switch accommodating portion 211; the connecting rod accommodation groove 2111; annular protrusion 2111a; a safety reset piece accommodation groove 2112; a bent rod accommodation groove 2113; a safety element fitting portion 2114; a safety element stop protrusion 2114a; a secure element securing protrusion 2114b; a stop switch accommodating section 212; a stop element fitting portion 2121; a pusher receiving groove 2122; limit openings 2123; a trace notch 219; a left-case lower body portion 22; a left-case handle part 23; a nail shooting switch accommodation portion 231; a nail-shooting return piece accommodating groove 2311; hypotenuse portion 2311a; a nail shooting element fitting portion 2312; nail shooting element limit bump 2312a; nail shooting element securing protuberance 2312b; a protection switch housing portion 232; a protective reset piece accommodating groove 2321; a protective element fitting portion 2322; the protection element limit protrusions 2322a; the protection element fixing projection 2322b; a wire fitting portion 233; a wire limit protrusion 2331; a pressing piece mounting hole 234; a first switch notch 235; a handle piece limit groove 2351; a second switch notch 236; a left shell connecting portion 24; a circuit board accommodating portion 221; a circuit board fitting groove 2211; button unit limit groove 2212; a wire storage cavity 222; cylindrical projections 2221; a right housing 30; a right housing upper body portion 31; a right housing lower body portion 32; a right-case handle portion 33; a right shell connecting portion 34; a striker driving mechanism 40; a regulation frame 41; a guide bar 42; a spring assembly 43; a piston 44; a piston main body 441; a socket through hole 4411; rolling element caulking groove 4412; a striker mounting portion 4413; a first piston protector 442; a second piston protector 443; a first abutment 445; a second abutment 446; a rolling member 45; a buffer 46; a driving wheel 47; a wheel 471; a first pushing projection 4711; a second pushing projection 4712; a drive motor 48; a motor 481; a speed-reducing torque-increasing unit 482; a one-way bearing 49; a gun nozzle 50; a magazine assembly 50; a gun nozzle 51; a magazine 52; a magazine attachment plate 521; a side hook magazine wrench 522; a rear hook magazine wrench 523; a striker 60; a circuit board assembly 80; a circuit board 81; a power button unit 82; a nail shooting switch 91; a nail shooting pressing member 911; pressing the main body 9111; a connection post portion 9112; spring connection post 9113; the push post portion 9114; limit projection 9115; a switching element 912 for nail shooting; a nail-shooting resetting member 913; a protection switch 92; a protective pressing member 921; a protective switching element 922; a protective reset 923; a safety switch 93; a curved bar 931; a connecting rod 932; a bent lever 933; a safety switching element 934; a security reset 935; an energy storage stop switch 94; stop pusher 941; the switching element 942 is stopped.

Detailed Description

In order to make the technical means, creation characteristics, achievement of the purposes and effects of the present utility model easy to understand, the safety nailer and the multipurpose nailer system of the present utility model will be specifically described below with reference to the embodiments and the accompanying drawings.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

< example >

Fig. 1 is a perspective view of the nail gun of the present embodiment.

FIG. 2 is a perspective view showing a part of the structure of the nail gun of the present embodiment;

fig. 3 is a front projection view of a part of the structure of the nail gun of the present embodiment, and a part of the housing and a part of the internal components are omitted in fig. 2 and 3 to show the internal structure.

As shown in fig. 1-3, the present embodiment provides a safety nailer 10, which includes a housing, a striker 60, a striker driving mechanism 40, a magazine assembly 50, and a control mechanism, and the safety nailer 10 further includes conventional arrangements such as a magazine, a lithium battery, and the like, and will not be repeated.

The striker 60 has a sheet shape, and is used for striking and ejecting a nail, the striker driving mechanism 40 is used for driving the striker 60 to strike and eject the nail, and the control mechanism is used for controlling the striker driving mechanism 40.

FIG. 4 is a perspective view of a striker driving mechanism in an embodiment of the present utility model;

FIG. 5 is an exploded view of the striker driving mechanism in an embodiment of the present utility model;

as shown in fig. 4-5, the striker driving mechanism 40 includes an energy storage assembly including a regulation frame 41, a guide rod 42, a spring assembly 43, a piston 44, a pair of rolling members 45, a buffer member 46, and an energy storage driving assembly including a driving wheel 47, a driving motor 48, and a one-way bearing 49.

The regulating frame 41 serves to regulate and limit the piston 44 such that the piston 44 moves only in a predetermined reciprocating direction. The direction indicated by an arrow D1 in the drawing is a nail shooting direction, the direction indicated by an arrow D2 is an energy storage direction, and the reciprocating motion direction comprises the nail shooting direction and the energy storage direction. The lengthwise direction of the regulation frame 41 coincides with the reciprocation direction. The regulation frame 41 includes a limit base 411, a limit plate 412, and two regulation plates 413.

The limiting base 411 is used for limiting the movement of the piston 44 and bearing the impact of the piston 44 when shooting nails. The limiting plate 412 is used for limiting the piston 44 and the spring assembly 43. The middle part of the limiting plate 412 is provided with a circular limiting through hole matched with the guide rod 42 for installing the guide rod 42. The regulating plate 413 is used to regulate the movement direction of the piston 44. The two gauge plates 413 are arranged in parallel. The two ends of the limiting base 411 and the limiting plate 412 are respectively connected with the ends of the two limiting plates 413, and are fastened through a plurality of frame fasteners 414, so that an open square frame is formed.

The guide rod 42 serves to guide the piston 44 in a predetermined reciprocating direction. The guide rod 42 is a circular rod with uniform thickness, one end of the guide rod is fixedly installed in the middle of the limiting base 411 through a guide rod installation hole 4111, and the other end of the guide rod is movably installed in the middle of the limiting plate 412 through a limiting through hole 4121.

The energy storage component 43 is configured to provide power for the impact nail, in this embodiment, the energy storage component 43 is a spring, and includes a first force supply spring 431 and a second force supply spring 432, which are both sleeved on the guide rod 42, and have one end abutting against the limiting plate 412, and the other end abutting against the piston 44. The first force supply spring 431 has a larger diameter than the second force supply spring 432 and is sleeved outside the second force supply spring 432, and the rotation directions of the first force supply spring and the second force supply spring are different.

The piston 44 is used to move a striker 60 mounted on the piston 44.

Fig. 6 is a perspective view of the piston in this embodiment.

As shown in fig. 6, the piston 34 includes a piston main body 341, a first piston protector 342, and a second piston protector 343.

The piston body 441 is an aluminum member, and has a socket hole 4411 formed at the center thereof for movably socket-coupling the piston 44 to the guide rod 42. Rolling element insertion grooves 4412 are provided on both sides of the piston 44, respectively, for rollably inserting the rolling elements 45.

A striker mounting portion 4413 is provided on one side of the plunger body 441, and the striker mounting portion 4413 has a striker mounting hole for fixedly mounting the striker 60. The other side of the piston body 441 is provided with a first pushing portion 4414 and a second pushing portion 4415 for pushing the piston 44 to move in cooperation with the driving wheel 47, wherein the first pushing portion 4414 extends from the piston body 441 toward the nail shooting direction, the second pushing portion 4415 extends from the piston body 441 toward the driving wheel 47, and the second pushing portion 3415 is substantially perpendicular to the first pushing portion 3414.

The first piston protecting member 342 and the second piston protecting member 343 are made of iron, so that they are more wear-resistant and protect the piston main body 341. The shape of the first piston protecting member 342 is matched with the first pushing portion 3414, and the first piston protecting member 342 is wrapped on the first pushing portion 3414 to form the first pushing end 345. The shape of the second piston protection member 343 is matched with the second pushing portion 3415, and the second piston protection member 343 is wrapped on the second pushing portion 3415 to form the second pushing end 346.

The rolling elements 45 serve to reduce the friction forces experienced during the movement of the piston 34. In this embodiment, the rolling element 45 is a steel ball and is spherical, and is rollably mounted in the rolling element insertion groove 3412 and protrudes outward from the rolling element insertion groove 4412, so that the piston 44 is not in direct contact with the gauge plate 413, thereby reducing friction force applied when the piston 44 moves.

The buffer member 46 is a soft plastic buffer pad for buffering the impact of the piston 44 during nail shooting, so as to protect the limit base 411 and the piston 44.

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

The wheel 471 can rotate along the central axis thereof, so as to drive the first pushing protrusion 4711 and the second pushing protrusion 4712 to move in an arc shape, and further push the piston 44 to move. The center of the wheel 471 has a pivot hole 4713, and the wheel 471 is mounted to the output end of the driving motor 48 through the pivot hole 4713 and rotates about the output end as an axis.

The wheel body 471 is provided with a first pushing protrusion 4711 and a second pushing protrusion 4712 on a side facing the piston 44. The first pushing boss 4711 and the second pushing boss 4712 are each cylindrical, the extending direction thereof coincides with the extending direction of the pivot hole 4713, and the height of the first pushing boss 4711 is higher than the second pushing boss 4712. The first pushing protrusion 4711 has a shape and height corresponding to the arrangement of the first pushing end 445 and the second pushing protrusion 4712 has a shape and height corresponding to the arrangement of the second pushing end 446.

Fig. 7 is a schematic view of the configuration of the driving wheel and the piston in this embodiment.

As shown in fig. 7, the driving wheel 47 is driven by the driving motor 48, and as the pushing member 47 rotates, the second pushing boss 4712 moves to and abuts against the second pushing end 446, at this time, the pushing member 47 continues to rotate, the second pushing boss 4712 moves in an arc shape substantially toward the energy storage direction, an arc pushing force substantially toward the energy storage direction is applied to the piston 44 by the second pushing end 446, and the piston 44 can move toward the energy storage direction along the guide rod 42 by the pushing force, and can also perform a circular movement around the guide rod 42. Since the piston 44 is abutted against the regulating plate 413 on the corresponding side by the pair of rolling members 45, the movement direction of the piston 44 is restricted so as not to perform the circular movement, and the piston 44 is moved only along the guide rod 32 toward the storing direction, thereby compressing the spring to store the energy.

The second pushing protrusion 4712 completes the first stage of energy storage when rotating to the maximum stroke along the energy storage direction. At this time, the pushing member 47 continues to rotate, the second pushing protrusion 4712 rotates along with it and is separated from the second pushing end 446, meanwhile, the first pushing protrusion 4711 rotates to the first pushing end 445 and abuts against the first pushing end 445, and then, the first pushing protrusion 4711 pushes the piston 44 to move further toward the energy storage direction in the same manner until the first pushing protrusion 4711 rotates to the maximum stroke in the energy storage direction, so as to complete the second energy storage.

After the second section of energy storage is completed, the nail can be shot. When the driving motor 48 drives the pushing member 47 to continue to rotate during the nailing, the first pushing protrusion 4711 rotates along with the pushing member and is separated from the first pushing end 445, at this time, the first pushing protrusion 4711 and the second pushing protrusion 4712 are both located outside the moving path of the piston 44, so that the piston 44 moves towards the nailing direction under the action of the spring until the piston 44 impacts the buffer member 46, and the nailing process is completed.

The driving motor 48 is used for driving the driving wheel 47 to rotate, and then the driving wheel 47 pushes the piston 44 to move. The driving motor 48 includes a motor 481 and a deceleration torque increasing unit 482, the motor 481 is a brushless motor, and the deceleration torque increasing unit 482 is mounted at an output end of the motor 481 and is used for reducing a rotation speed of the output end of the motor 381, so as to obtain a higher output torque, that is, a larger driving force. The end of the speed-reducing and torque-increasing unit 482 is provided with an output shaft 4821, the output shaft 4821 is the output end of the driving motor 48, and the wheel body 471 of the driving wheel 47 is mounted on the output shaft 4821 through a pivot hole positioned in the middle of the output shaft 4821, so that the driving wheel 47 can rotate synchronously with the output shaft 4821.

The one-way bearing 49 is used to limit the rotational direction of the output end of the drive motor 48 so that it can only perform one-way rotation. The one-way bearing 49 is mounted on the output shaft 4821 of the speed-reducing and torque-increasing unit 482 and is in shaft fit with the output shaft 4821 to enable the output shaft 4821 to rotate only in one direction.

The magazine assembly 50 includes a gun nozzle 51 and a magazine 52 that are removable as a unit. The gun nozzle 51 is used for accommodating the firing pin 40 and plays a limiting guide role on the firing pin 40 when the firing pin 40 impacts the firing pin. The magazine 52 is used for supplying nails to the gun nozzle 51.

The control mechanism comprises a nail shooting switch 91, a protection switch 92, a safety switch 93, an energy storage stop switch 94 and a control module, wherein the nail shooting switch 91 and the protection switch 92 are arranged at a handle, the safety switch 93 is arranged at a position close to a gun nozzle, and the energy storage stop switch 94 is arranged beside the regulation frame 41.

Fig. 8 is a mounting structure view of the control mechanism in the left-hand housing handle part in the embodiment of the present utility model.

As shown in fig. 8, the nail shooting switch 91 includes a nail pressing piece 911, a nail shooting switching element 912, and a nail shooting resetting piece 913.

Fig. 9 is a perspective view of the nail-shooting pressing member in the present embodiment.

As shown in fig. 9, the nail-shooting pressing tool 911 includes a pressing body 9111, and a connecting post portion 9112, a spring connecting post portion 9113 in one side middle portion, a pushing post portion 9114 in one side lower portion, and a limit projection 9115 in one side bottom portion integrally formed at one side upper end of the pressing body 9111. The other side of the pressing body 9111 is concavely curved for the operator to press with his fingers. The nail shooting switch element 912 is a micro switch, which has a trigger reed, and when the nail shooting pressing piece 911 is pressed down, the reed is touched, the micro switch generates a corresponding signal, and in addition, the micro switch has two through holes in the middle for installation. The nail-shooting return member 913 is a spring.

The protection switch 92 includes a protection pressing member 921, a protection switching element 922, and a protection resetting member 923. The protecting pressing member 921 is in a button shape, one side of which is pressed by an operator, and the other side of which is provided with a circular groove for setting a spring. The protection switch element 922 is also a micro switch, and the protection reset element 923 is also a spring.

Fig. 10 is a mounting structure diagram of the control mechanism in the upper main body portion of the left case in this embodiment.

As shown in fig. 10, the safety switch 93 includes a curved lever 931, a connecting lever 932, a curved lever 933, a safety switching element 934, and a safety reset piece 935. The curved lever 931, the connecting lever 932, and the curved lever 933 are sequentially abutted to each other as a trigger lever assembly for triggering the safety switching element 934. The safety switch element 934 is also a micro switch, and the safety reset member 935 is also a spring.

The energy storage stop switch 94 includes a stop pusher 941 and a stop switching element 942. The stopping presser 941 has a curled one end and a substantially flat other end, and is configured to rotate to trigger the stopping switching element 942 when the piston 44 moves to its position. The stopping switching element 942 is also a micro switch.

In this embodiment, the control module is a circuit board assembly 80, and includes a circuit board 81, a power button unit 82 and a plurality of wires (not shown in the figure), wherein the power button unit 82 is connected to one side of the circuit board 81, and the nail gun 10 is turned on after an operator presses the power button on the unit. The micro-switch and the motor are connected to the circuit board 81 through wires.

The mounting positions of the above components will be described in detail below in connection with the construction of the cabinet. In this embodiment, the housing of the stapling gun 10 includes a left housing, a right housing, and a striker plate.

Fig. 11 and 12 are a perspective view and an orthographic view of the left casing in the present embodiment, respectively.

As shown in fig. 11 to 12, the left casing 20 may 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.

Fig. 13 and 14 are perspective views of the right housing in the present embodiment, respectively.

As shown in fig. 13 to 14, the right housing 30 may be divided into a right housing upper body part 31, a right housing lower body part 32, a right housing handle part 33, and a right housing connection part 34 corresponding to the left housing 20.

The inner surfaces of the left and right upper main body parts 21, 31 are respectively provided with grid-shaped protrusions, and a containing groove for containing the regulating frame 41 is formed between the two protrusions after combination. The bulges on the inner surface of the shell are also used as reinforcing ribs. Further, after the left and right upper case main body parts 21, 31 are combined, a replacement opening for replacing the striker 60 is formed at the upper end thereof, and the striker barrier 12 is detachably attached thereto.

Fig. 15 is an enlarged view of the inner portion of the frame a in fig. 12.

As shown in fig. 15, a circular pressing member mounting hole 234 is formed at the connection position of the left housing handle part 23 and the left housing upper main body part 21 of the left housing 20, and a circular mounting hole is also formed at the corresponding position of the right housing 30; both ends of the connection post portion 9112 of the upper end of the nail-shooting presser 911 are rotatably fitted in the presser mounting holes 234 of the left casing 20 and the corresponding mounting holes of the right casing 30, respectively, so that the nail-shooting presser 911 can be rotated about the connection post portion 9112 thereof as a rotation axis.

The left shell handle portion 23 is provided with a first switch notch 235 and a second switch notch 236 near one side of the left shell connecting portion 24, and the corresponding position of the right shell 30 is also provided with a corresponding notch. The nail-shooting presser 911 is partially accommodated in the left-case handle portion 23, and one side of the arc is exposed from the first switch notch 235. The protective pressing member 921 is partially accommodated in the left case handle portion 23, and one side thereof is exposed from the second switch notch 236. The inner surface of the left housing handle portion 23 at the lower end of the first switch notch 235 is further formed with a handle member limiting groove 2351 for limiting the rotation range of the nail shooting pressing member 911, and the limiting protrusion 9115 for limiting the rotation of the nail shooting pressing member 911 to the bottom thereof is abutted with the handle member limiting groove 2351 under the action of the reset member.

The left housing handle part 23 of the left housing 20 has a plurality of protrusions on the inner surface thereof, forming a nail-shooting switch accommodation part 231 and a protection switch accommodation part 232. The right housing handle 33 of the right housing 30 has a nail shooting switch limiting portion 331 and a protection switch limiting portion 332 corresponding thereto.

The nail shooting switch housing 231 includes a nail shooting return piece housing groove 2311 and a nail shooting element fitting portion 2312. The nail-shooting return member accommodation groove 2311 is a square groove with one side open, and is configured to accommodate a nail-shooting return member 913 (spring), one end of which abuts against a side wall in the groove of the nail-shooting return member accommodation groove 2311, and the other end of which is fitted to the spring connection post portion 9113 of the nail-shooting pressing member 911. The nail-shooting element engaging portion 2312 is provided between the nail-shooting return piece accommodating groove 2311 and the outer wall of the protective return piece accommodating groove 2321, and is used for fixing the nail-shooting switching element 912 (micro switch). The driving element engaging portion 2312 includes two driving element limit protrusions 2312a, two driving element fixing protrusions 2312b, and a driving element limit bar 2312c. In this embodiment, the nail shooting element fixing protrusion 2312b is two cylindrical protrusions, and the size and arrangement of the protrusions are matched with those of two through holes on the micro switch, and the micro switch is fixed by passing through the two through holes. Wherein two nail shooting element spacing protruding 2312a are square columnar protruding for spacing to one side of micro-gap switch width direction, and another is the strip protruding for spacing to one side of micro-gap switch length direction, and micro-gap switch length direction's opposite side is spacing by the one side outer wall of nail shooting with reset piece holding groove 2311.

The nail-shooting return-piece accommodation groove 2311 further includes a protruding inclined-side portion 2311a on the opening side, and when the nail-shooting presser 911 is pressed down and rotated in place, the nail-shooting return-piece accommodation groove abuts against the inclined-side portion 2311a, thereby restricting the rotation range of the nail-shooting presser 911.

The nail shooting switch limiting portion 331 is a grid-shaped protrusion, and has a structure corresponding to the nail shooting reset piece accommodating groove 2311 and the nail shooting element embedding portion 2312, and is used for clamping the other side of the micro switch and the spring for limiting.

The protection switch accommodating portion 232 includes a protection reset piece accommodating groove 2321 and a protection element fitting portion 2322. The protective return member accommodating groove 2321 is also a square groove with one side open, and is used for accommodating the protective return member 923 (spring), one end of the spring is abutted against the side wall in the protective return member accommodating groove 2321, and the other end is abutted against the groove bottom of the circular groove on one side of the protective pressing member 921. The protective element engaging portion 2322 includes three protective element limiting protrusions 2322a and three protective element fixing protrusions 2322b, and has a structure similar to that of the nail-shooting element engaging portion 2312, except that the protective element engaging portion 2322 is disposed so as to be inclined as a whole with respect to the nail-shooting switch accommodating portion 231, so that the trigger reed of the micro switch mounted thereat is inclined upward, and the protective pressing member 921 can be brought closer to the nail-shooting pressing member 911, thereby facilitating the operation.

The protection switch limiting portion 332 is also a grid-shaped protrusion, and has a structure corresponding to the protection reset element accommodating groove 2321 and the protection element engaging portion 2322, and is used for clamping the other side of the micro switch and the spring to limit.

Fig. 16 is an enlarged view of the inner portion of the frame B in fig. 12.

As shown in fig. 16, the inner surface of the left case upper body part 21 further has a safety switch accommodating part 211 and a stop switch accommodating part 212, both formed between the mesh-like projections.

The safety switch housing 211 is provided at a position close to the gun nozzle 50, and includes a connecting rod housing groove 2111, a safety return member housing groove 2112, a bent rod housing groove 2113, and a safety element fitting portion 2114.

The connecting rod accommodating groove 2111 is a square groove, one side in the length direction and one side in the width direction of the groove are respectively provided with an opening, wherein the opening on one side in the width direction is larger, an annular protrusion 2111a is arranged in the groove, the lower surface of the annular protrusion 2111a is a plane, the connecting rod 932 is embedded in the connecting rod accommodating groove 2111, two ends of the connecting rod accommodating groove extend out of the two openings respectively, and the middle part of the connecting rod accommodating groove is limited by the lower surface of the annular protrusion 2111a and the groove wall.

The safety return piece accommodation groove 2112 is adjacent to the link rod accommodation groove 2111, and is also a square groove having one opening on one side in the width direction.

The bent rod accommodation groove 2113 is located below the safety return accommodation groove 2112, and is adjacent thereto, and both sides of the bent rod accommodation groove 2113 are opened, one side of which communicates with the safety element fitting portion 2114, and the other side communicates with the safety return accommodation groove 2112. One longer end of the bent lever 933 is fitted in the bent lever accommodation groove 2113, and the other end extends to the safety return piece accommodation groove 2112 and abuts against one end of the connecting lever 932. One end of the safety return piece 935 (spring) abuts against a side wall of the inside of the safety return piece accommodation groove 2112, and the other end abuts against one end of the bent lever 933.

The curved bar 931 is mounted to the gun nozzle 50 through a limiting plate to be movable in a predetermined reciprocating direction, and one end thereof abuts against an end of the connecting rod 932 extending therefrom.

The safety element fitting portion 2114 includes a plurality of safety element retaining protrusions 2114a and two safety element fixing protrusions 2114b. The safety element limiting protrusions 2114a are columnar or shaped protrusions, and are used for limiting the two sides of the micro-switch in the length direction and one side of the micro-switch in the width direction respectively. The two safety element fixing protrusions 2114b are cylindrical protrusions, the micro switch is arranged between the safety element limiting protrusions 2114a, the safety element fixing protrusions 2114b penetrate through the two through holes to fix the micro switch, and the trigger reed of the micro switch is located at the opening of one side of the bent rod accommodating groove 2113. In addition, a yielding structure is formed between the adjacent safety element limit protrusions 2114a for yielding the terminals of the micro switch so as to connect the wires.

Therefore, when the operator pushes the gun nozzle 50 against, the curved bar 931 on the gun nozzle 50 is pressed to move along the spring energy storage direction, so as to push the connecting rod 932 and the curved bar 933 to move, and the end part of the curved bar 933 presses the trigger reed of the micro switch to generate a corresponding electric signal.

The stop switch housing 212 includes a stop element fitting portion 2121 and a pressing member housing groove 2122. The structure of the stopper fitting portion 2121 is similar to that of the safety fitting portion 2114, and will not be described again. A cylindrical projection is provided in the pressing member receiving groove 2122, and an end to which the pressing member 941 is stopped to curl is attached so as to be rotatable about the projection as a rotation axis. The other end of the stopping push member 941 is located at one of the limiting openings 2123 of the mesh-like projections, and the rotation amplitude thereof is limited by the limiting opening 2123.

When the energy storage of the energy storage component 43 (spring) is not finished, the other end of the pressing member 941 for stopping is abutted with the lower end of the limit opening 2123 under the action of gravity; when the energy storage of the energy storage component 43 is completed, the piston 44 reaches the position of the stop pushing member 941, and pushes the stop pushing member upward to press the trigger reed of the micro switch.

After the installation, the other sides of the curved bar 931, the connecting bar 932, the curved bar 933 and the micro switch are pressed and limited by one side of the regulation frame 41.

In addition, the grid-shaped protrusions on the inner surface of the upper main body 21 of the left shell are also provided with a plurality of routing notches 219 for routing wires of the two microswitches.

The lower half of the left case connecting portion 24 and the inner surface of the lower half of the right case connecting portion 34 each have a plurality of annular projections, and the lower half forms a cylindrical space with a larger diameter for accommodating the motor 71 when the two are combined. The inner surface of the upper half of the left case connecting portion 23 has a pair of deceleration unit stopper portions 241, and the deceleration unit stopper portions 241 have a substantially rectangular parallelepiped shape. Grid-shaped protrusions are formed on the inner surface of the casing between the pair of deceleration unit limiting portions 241, and a deceleration torque-increasing unit 72 having an i-shaped cross section may be fitted between the pair of deceleration unit limiting portions 231.

The inner surface of the left case lower body part 22 has a circuit board receiving part 221 and a wire storage chamber 222.

Fig. 17 is an enlarged view of the inner portion of the frame C in fig. 12.

As shown in fig. 17, the circuit board housing 221 includes a pair of circuit board engaging grooves 2211, a pair of button unit limiting grooves 2212.

The circuit board engaging groove 2211 is a square groove with one side open, the openings of the pair of circuit board engaging grooves 2211 are opposite, and both sides in the width direction of the circuit board 81 are respectively engaged in the pair of circuit board engaging grooves 2211. In the present embodiment, the extending length of the circuit board engaging groove 2211 is substantially equal to the width of the circuit board 81, so that the circuit board 81 can be stably engaged therein.

The button unit limiting groove 2212 is a groove body with an L-shaped cross section, and both sides of the power button unit 82 in the width direction are respectively placed on the pair of button unit limiting grooves 2212. The left housing lower main body 22 is further provided with a notch toward one side of the left housing upper main body 21, the right housing lower main body 32 is also provided with a corresponding notch at a corresponding position, and the power button unit 82 is exposed from the notch and is engaged and limited by the pair of notches.

A wire storage chamber 222 is formed at one side of the circuit board accommodating part 221 for storing a part of the wires. The wire storage cavity 222 is provided with a hollow cylindrical protrusion 2221, a longer wire can be wound at the cylindrical protrusion 2221 for storage, the cylindrical protrusion 2221 is also used for mounting a screw, and a cylindrical protrusion matched with the right casing 30 is arranged at a corresponding position.

The lower part of the left case handle part 23, which is close to the left case lower body part 22, is also provided with a wire fitting part 233 for fixing a plurality of wires connected between the circuit board 81 and the micro switch. The wire jogging part 233 includes a plurality of wire spacing protrusions 2331, in this embodiment, the wire spacing protrusions 2331 are cylindrical protrusions, the five wire spacing protrusions 2331 are arranged in a shape of a line, and the distance between two adjacent wire spacing protrusions 2331 is slightly smaller than the diameter of the wire, so that a plurality of wires can be jogged between two wire spacing protrusions 2331 respectively to perform spacing fixation. After the wire is inserted, the wire may be further adhered to the inner surface of the left housing 20 by white glue or the like at a position above or below the wire insertion portion 233.

Based on the above structure, the internal components such as the micro switch, the spring, the wire and the like can be accommodated in the left casing 20, and the right casing 30 is only used for pressing and limiting, thereby facilitating the assembly of the two casings.

In use, the operator presses the gun nozzle 51 of the nail gun 10 against the target position, depresses the trigger lever assembly, presses the protective pressing member 921, and then presses the nail-shooting pressing member 911 to effect firing.

The present embodiment also provides a multi-purpose stapling gun system including the above-described safety stapling gun 10, a plurality of different types of stapling cartridge assemblies 50, and corresponding types of firing pins 60 for firing different types of staples, as shown in table 1 below.

Table 1 nail gun model information table

Wherein the striker 60 is of a type corresponding to the staple length.

Fig. 18 is an exploded view of the nail gun of the present embodiment.

As shown in fig. 18, after the striker plate 12 is removed, the lower striker 60 can be removed from the replacement opening for replacement, and the magazine assembly 50 can be removed for replacement.

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

The end of the nail box 52 far away from the gun nozzle 51 is provided with a nail box connecting plate 521 and a side hook type nail box spanner 522, the nail box connecting plate 521 extends along the width direction of the nail box 52, one end of the extension is provided with a connecting hole 5211, and the middle part near the other end is provided with a hole for hooking. A side hook type magazine wrench 522 is provided on one surface in the thickness direction of the magazine 52 for hooking the magazine attachment plate 521. When the magazine assembly 50 is removed, the fasteners are removed and the tail of the magazine assembly 50 is removed by manually pressing the side-hook magazine wrench 522.

Shown in fig. 18 is a side-hook magazine suitable for use with longer size nails.

Fig. 19 is a perspective view of the rear hook magazine in this embodiment.

As shown in fig. 19, for a nail with a short size, a rear hook type magazine 52 is used, the rear hook type magazine 52 has a magazine connecting plate 521 and a rear hook type magazine wrench 523 at an end thereof remote from the gun nozzle 51, and the rear hook type magazine wrench 523 is disposed at one side in the width direction of the magazine 52 and at the same side as the magazine connecting plate 521 for hooking the magazine connecting plate 521.

The housing is also formed at one side with a magazine connecting portion 25, and the magazine connecting portion 25 is provided with two magazine tail connecting holes 251 for connecting the tails of the two magazines 52 by fasteners, respectively.

Fig. 20 is a schematic view of the installation of the back hook magazine in the present embodiment.

As shown in fig. 20, the bottom of the magazine attachment portion 25 is further formed with an inwardly recessed relief groove 252 for relief of the rear hook magazine wrench 523 of the rear hook magazine 52. The operator's finger can be extended into the escape groove 252 to press the rear hook box spanner 523 for disassembly.

The process for switching the nail gun model specifically comprises the following steps:

step S1, selecting a corresponding firing pin 60 and a corresponding staple cartridge assembly 50 according to the type of the staple;

step S2, removing the fastener on the firing pin baffle 12, and removing the firing pin baffle 12;

step S3, the striker fixing pin on the original striker 60 is pulled out, the original striker 60 is pulled out from the gun nozzle 51, and the original striker 60 is taken out from the replacement opening of the shell;

s4, removing fasteners at the head and tail of the original nail box assembly 50, pressing a nail box wrench, and completely removing the original nail box assembly 50;

step S5, mounting the replaced cartridge module 50 to the nail gun 10, and respectively mounting fasteners on the head and tail of the replaced cartridge module 50;

step S6, the replaced firing pin 60 is put in from the replacement opening of the shell, the tail part of the replaced firing pin 60 is inserted into the gun nozzle 51, the bolt hole at the head part is aligned with the firing pin mounting hole on the piston 44, and then the firing pin fixing pin is inserted;

In step S7, the striker plate 12 is attached to the replacement opening of the case, and a fastener is attached.

By 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 corresponding to the target nail.

Example operation and Effect

The safety nailing gun 10 provided in accordance with the present embodiment comprises a housing, a firing pin 60, a firing pin driving mechanism 40, a nail magazine assembly 50 and a control mechanism, wherein the control mechanism comprises a nailing switch 91, a protection switch 92 and a safety switch 93, pressing pieces of the nailing switch 91 and the protection switch 92 are arranged at the handle of the nailing gun 10, an operator presses and triggers the safety switch by fingers, a triggering rod assembly of the safety switch 93 is arranged at a gun nozzle 51, and the operator triggers the gun nozzle 51 when pressing against a target position. Therefore, when the trigger lever assembly is depressed and the protective pressing member 921 is depressed, the nail-shooting pressing member 911 is depressed again to perform firing. Through the double-insurance design of the protection switch 92 and the safety switch 93, the situation of false touch when an operator presses the switch at the gun nozzle 51 forcefully can be effectively avoided, and the use safety of the nail gun 10 is further improved. In addition, the protective pressing member 921 is also provided at the handle and close to the nail-shooting pressing member 911, so that the operator can operate the two switches at the handle with one hand conveniently without giving an extra burden to the operator.

In the embodiment, the nail shooting switch 91, the protection switch 92 and the safety switch 93 all adopt micro-switches and are provided with springs for resetting the pressing piece and the triggering rod assembly, the accommodating parts for accommodating the micro-switches, the springs and the triggering rod assembly are formed between the protrusions and the reinforcing ribs of the inner surface of the left shell 20, the corresponding positions of the inner surface of the right shell 30 are provided with grid-shaped protrusions, and limit parts for limiting the micro-switches, the springs and the triggering rod assembly are formed, so that when the shell is assembled, only the inner assemblies are needed to be installed in the left shell 20, and then the right shell 30 is in press fit connection, and the installation is more convenient and quick.

The multipurpose nailing gun system according to the present utility model comprises the safety nailing gun 10, a plurality of different types of nail magazine assemblies 50 and a plurality of different types of firing pins 60, wherein the nail magazine assemblies 50 are detachably connected to the housing corresponding to the different types of nails, so that the nailing gun 10 can be suitable for the different types of nails by disassembling and replacing the different types of the firing pins 60 and the nail magazine assemblies 50, a plurality of nail guns are not required to be equipped at a construction site, and the multipurpose nailing gun system is convenient and practical, and can reduce the cost of tools.

In the embodiment, by correspondingly replacing the nail cartridge assembly 50 and the firing pin 60, the nail gun 10 can be changed into 7 nail guns with different types, and the application range is wide. And the upper portion of the shell is provided with an opening for replacement and a detachable firing pin baffle 12, after the firing pin baffle 12 is detached, the firing pin 60 can be replaced from the opening for replacement, and the nail box assembly 50 can be detached as a whole, and only four screws are required to be detached, so that the operation of switching the types is very convenient and quick, and the nail gun 10 has high practicability on complex construction sites.

The above examples are only for illustrating the specific embodiments of the present utility model, and the present utility model is not limited to the description scope of the above examples.

In the above embodiment, the striker 60 is attached to the upper side of the plunger 44, and in the alternative, the striker 60 may be attached to the left or right side of the plunger 44.

In the above embodiment, the energy storage assembly comprises a force supply spring, and in the alternative, the energy storage assembly may also adopt pneumatic type, i.e. comprise a cylinder, and the piston 44 is driven by the cylinder to move, so that corresponding technical effects can be achieved.

In the above embodiment, the two magazine connecting holes 251 are formed in the magazine connecting portion 25 on one side of the housing and are used for connecting the two magazines 52, and in an alternative, only one of the magazine connecting holes 251 may be provided, or more magazine connecting holes 251 may be provided corresponding to the size design of the magazines 52, according to actual needs.

In the above embodiment, the left casing 20 is used as a casing for accommodating, the inner surface has a plurality of accommodating portions for accommodating the internal components, the right casing 30 is used as a casing for limiting, and the inner surface has a plurality of corresponding limiting portions for limiting the internal components, so that the two-piece casing can be conveniently combined.

In the above embodiment, the extending length of the circuit board engaging groove 2211 is approximately equal to the width of the circuit board 81, so that the circuit board 81 can be stably engaged therein, and in an alternative, the extending length of the circuit board engaging groove 2411 may be shorter, more than 2/3 of the width of the circuit board 81, so that the circuit board 81 is not easily disengaged.

In the above embodiment, the inner surfaces of the left and right housings 20, 30 have the strip-shaped protrusions, mesh-shaped protrusions, etc. for accommodating or restraining the internal components, and these structures are also used as reinforcing ribs for the inner surfaces of the housings, so that the overall structural strength of the housings can be enhanced.

Claims (10)

1. A safety nailer, comprising:

a striker for striking a nail to eject it;

the firing pin driving mechanism is used for driving the firing pins to strike and is provided with a driving motor;

the control mechanism is used for controlling the driving motor to start or stop;

a housing in which the striker, the striker driving mechanism, the driving motor, and the control mechanism are housed; and

the nail box assembly is detachably connected to the shell and comprises a gun nozzle and a nail box connected with the gun nozzle,

wherein the shell is provided with a handle part for an operator to hold and a gun nozzle connecting part for connecting the gun nozzle,

The control mechanism includes:

a nail shooting switch having a nail shooting pressing piece and a nail shooting switch element, wherein the nail shooting pressing piece is arranged on the handle part, and the nail shooting switch element generates a nail shooting electric signal when the nail shooting pressing piece is pressed down;

a protection switch having a protection pressing piece and a protection switching element, the protection pressing piece being provided on the handle portion and being close to the nail shooting pressing piece, the protection switching element generating a protection electric signal when the protection pressing piece is pressed down;

a safety switch having a trigger lever assembly provided at the gun nozzle and the gun nozzle connecting portion, and a safety switching element for generating a safety electric signal when the trigger lever assembly is pressed; and

and the control module is respectively and electrically connected with the driving motor, the nail shooting switch, the protection switch and the safety switch.

2. The safety nailer of claim 1 wherein:

wherein the nail shooting switch also comprises a nail shooting reset piece which is connected with the nail shooting pressing piece and used for resetting the pressed nail shooting pressing piece,

the protection switch also comprises a protection reset piece which is abutted with the protection pressing piece and used for resetting the pressed protection pressing piece,

The safety switch further comprises a safety reset piece which is abutted with the trigger rod assembly and used for resetting the depressed trigger rod assembly.

3. The safety nailer of claim 2 wherein:

wherein 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,

the nail shooting reset piece, the protection reset piece and the safety reset piece are all spring pieces.

4. A safety nailer as claimed in claim 3, wherein:

wherein, the casing includes:

the housing is provided with a plurality of housing parts on the inner surface, and the housing parts are respectively used for housing the microswitches and the spring pieces; and

and the limiting shell is matched with the accommodating shell, is detachably connected to the accommodating shell, and is provided with a plurality of limiting parts on the inner surface, the positions of the limiting parts are respectively corresponding to the accommodating parts, and the limiting parts are used for limiting the micro switch or the spring part accommodated in the corresponding accommodating parts.

5. The safety nailer of claim 4 wherein:

Wherein the trigger rod assembly comprises a curved rod, a connecting rod and a curved rod which are sequentially connected,

the curved rod is movably connected to the gun nozzle, the connecting rod and the curved rod are movably arranged in the housing,

the housing inner surface is also provided with a housing part for housing the connecting rod and the bent rod.

6. The safety nailer of claim 4 wherein:

wherein the firing pin driving mechanism comprises a piston for driving the firing pin,

the tail of the striker is detachably connected to the side of the piston,

the housing may further comprise a striker plate,

after the housing case and the limit case are connected, a replacement opening is formed at the upper end of the housing case, the replacement opening exposes the tail of the striker,

the striker plate is detachably attached to the replacement opening.

7. The safety nailer of claim 6 wherein:

wherein one end of the gun nozzle is provided with a gun nozzle connecting hole,

a nail box connecting plate is arranged at one end of the nail box far away from the gun nozzle, one end of the nail box connecting plate extends out from one side of the nail box, a nail box connecting hole is arranged at the end,

The firing pin driving mechanism comprises a regulation frame which comprises a limit base, when the regulation frame is arranged in the shell, the limit base is positioned at the connecting part of the gun nozzle, the upper end of the limit base is exposed from the opening for replacement,

the upper end of the limit base is provided with a nail box head mounting hole,

one side of the shell is provided with a nail box tail mounting hole,

one end of the gun nozzle is arranged on the limit base through the gun nozzle connecting hole, the nail box head mounting hole and the fastener,

one end of the nail box is arranged on one side of the shell through the nail box connecting hole, the nail box tail mounting hole and the fastener.

8. The safety nailer of claim 7 wherein:

wherein the nail box is a side hook type nail box, one end of the nail box, which is far away from the gun nozzle, is also provided with a side hook type nail box spanner which is used for hooking the nail box connecting plate,

the side hook type nail box spanner is arranged on one side of the nail box in the thickness direction.

9. The safety nailer of claim 7 wherein:

wherein the nail box is a rear hook type nail box, one end of the nail box, which is far away from the gun nozzle, is also provided with a rear hook type nail box spanner which is used for hooking and buckling the nail box connecting plate,

The rear hook type nail box spanner is arranged at one side of the nail box in the width direction and is the same as the extending direction of the nail box connecting plate,

the bottom of the shell is also provided with an inward concave avoidance groove,

when the magazine assembly is attached to the housing, the rear hook magazine wrench is received in the relief slot.

10. A multi-purpose nail gun system, comprising:

a safety nailing gun;

a plurality of different types of magazine assemblies; and

a plurality of different types of striker rods,

wherein the safety nailer is a safety nailer according to any one of claims 1 to 9,

each model of the magazine assembly and each model of the striker correspond to each model of staple.

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