CN109623736A - A kind of nail gun of reliable operation - Google Patents

Abstract

The present invention provides a kind of nail gun of reliable operation, including casing, trigger, motor, first cylinder, second cylinder, crank, connecting rod, nailing component and send screw assembly, second cylinder is located in the first cylinder, first piston is equipped in first cylinder, second piston is equipped in second cylinder, connecting rod and first piston are sequentially connected, motor is connect with crank gearing by transmission mechanism and drives first piston to be axially moved in the first cylinder by connecting rod, nail gun includes trigger switch, trigger is equipped with triggering mandril, transmission mechanism includes retarder, transmission shaft and it is arranged cam, self-locking mandril is equipped between cam and trigger switch, to push self-locking mandril triggering trigger switch and make to trigger mandril disengaging trigger switch when cam moves lofty perch, cam moves to self-locking mandril when low spot and is detached from trigger switch, to control by way of mechanical structure Motor completes the movement of a circulation, can guarantee the functional reliability of nail gun well.

Description

A kind of nail gun of reliable operation

Technical field

The present invention relates to field of power tools more particularly to a kind of nail guns of reliable operation.

Background technique

Nail gun is a kind of tool that can quickly squeeze into nail in the objects such as timber, very common in carpenter field, and Air nail gun is one of more common type in nail gun.Existing air nail gun is usually to have certain pressure using even tracheae access Extraneous compressed air gas source it is mobile as powered striker, that is, need other set generate high-pressure air source equipment it is such as empty Air compressor etc. is cooperated, and has inconvenience when in use.

It is existing a kind of by the way that big cylinder and small cylinder are arranged in casing, and using produced by the volume differences of large and small cylinder Pressure difference carry out impact nailing nail gun, can the very good solution above problem.But there are still certain problems for it, for example pass through Position sensor is set, to detect piston position, stopped with to ensure piston when being moved to certain position it is ready to carry out under Primary striker movement that is to say through detection of electrons and control, but such detection of electrons and control can have unstability, To influence the reliability of nailing, it that is to say that the functional reliability of nail gun is bad.

Summary of the invention

The purpose of the present invention is to provide a kind of nail guns of reliable operation.

In order to achieve the above object, the present invention adopts the following technical scheme: a kind of nail gun of reliable operation, including casing, Trigger, motor, the first cylinder, the second cylinder, crank, connecting rod, nailing component and screw assembly is sent, the second cylinder is located at the first cylinder It is interior, it is equipped with first piston in the first cylinder, second piston is equipped in the second cylinder, connecting rod and first piston are sequentially connected, motor It is connect by transmission mechanism with crank gearing and drives first piston to be axially moved in the first cylinder by connecting rod, the first cylinder Circulation air flue is equipped between the second cylinder, wherein the nail gun includes trigger switch, and trigger is equipped with the energy after cocking The triggering mandril of trigger switch is triggered, transmission mechanism includes retarder, the transmission shaft being sequentially connected with retarder and is sheathed on biography Cam on moving axis is equipped with self-locking mandril, self-locking mandril is pushed to touch when cam moves lofty perch between cam and trigger switch Hair trigger switch simultaneously makes to trigger mandril disengaging trigger switch, and cam moves to self-locking mandril when low spot and is detached from trigger switch.

Further, the trigger is equipped with shaft, and triggering mandril is equipped with turn hole, and triggering mandril is sheathed on by turn hole So that triggering mandril with trigger movement and can trigger trigger switch in shaft.

Further, being also arranged in the shaft enables to trigger the torsional spring that mandril deflects, and triggering mandril is equipped with Card slot, one end of torsional spring are fastened in the card slot of triggering mandril, and the other end contacts on the block of trigger.

Further, the cam be equipped with convex block, cam move lofty perch when convex block touch triggering mandril lower end with Triggering mandril is set to deflect and be detached from trigger switch.

Further, the lower end of the triggering mandril is equipped with the guiding surface touched convenient for convex block.

Further, the convex block is located at cam on the side of retarder, convex block and cam integral structure.

Further, the lower end of the self-locking mandril is equipped with the auxiliary section with cam engagement, and auxiliary section is in up-small and down-big Trapezoidal shape.

Further, the casing includes the first casing and the second casing, and the first casing and the second casing mutually fasten shape At the casing.

Further, the trigger elastic component for making trigger automatically reset is equipped in the casing.

Further, the nail gun further include MCU and can free switching nail gun singles or even molding formula switching switch, cut Switch is changed to be electrically connected with MCU.

In the present invention, when lofty perch " cam movement " refers to that first piston, second piston move to upper limit position, When " when cam moves to low spot " refers to that first piston, second piston move to lower limit position.

After adopting the above technical scheme, the present invention has the advantage that

1, in the present invention, a trigger switch is arranged in nail gun, and the setting triggering mandril on trigger, can touch after cocking Trigger switch is sent out, electrical power rotate and by transmission mechanism drive crank-motion, then by connecting rod driving first piston the It is axially moved in one cylinder, circulation air flue is equipped between the first cylinder and the second cylinder, first piston is moved to compress the first gas The gas of compression is sent to the second cylinder by the gas in cylinder, the air flue that circulates, and it is enough that the gas of compression is applied to second piston Atmospheric pressure, second piston are discharged and are rapidly moved downward under this atmospheric pressure so that striker impact rifle nail, transmission mechanism specifically wrap Retarder, the transmission shaft being sequentially connected with retarder and the cam being sheathed on transmission shaft are included, is set between cam and trigger switch There is self-locking mandril, self-locking mandril triggering trigger switch is pushed when such cam moves lofty perch and makes to trigger mandril disengaging triggering Switch, i.e., self-locking mandril head on trigger switch, guarantee that trigger switch does not turn off, to guarantee that motor continues to move, to guarantee Nailing process is not interrupted, farther cam movement and the self-locking mandril disengaging trigger switch when cam moves to low spot, trigger switch It disconnects so that the power supply of motor disconnects, motor stalls, to complete an actuation cycle of nail gun, such side by mechanical structure Formula is to control the movement that motor completes a circulation, compared to being controlled in existing by position sensor detection, more surely It is fixed and reliable, to guarantee the reliability of nailing, it that is to say the functional reliability for guaranteeing nail gun.

2, by the way that shaft is arranged on trigger, triggering mandril is equipped with turn hole, and triggers mandril and be sheathed on by turn hole and turned On axis, triggering mandril is enabled with trigger movement and trigger switch to be triggered, such structure is not only simple in structure and reliably, simultaneously The operation is stable, to guarantee that the reliability triggered to trigger switch that is to say guarantee nail gun to guarantee the reliability of motor operation The reliability of nailing.

3, being also arranged in shaft enables to trigger the torsional spring that mandril deflects, and triggering mandril is equipped with card slot, torsional spring one End is fastened in the card slot of triggering mandril, and the other end contacts on the block of trigger, makes to trigger mandril production in this way by torsional spring Raw certain torsion keeps working condition so as to make to trigger mandril well, i.e., keeps good when needing to trigger trigger switch Good trigger position state can remain disengaged from location status again after needing to be detached from trigger switch well, improve triggering top The reliability and stability of bar work, will not change because of other external force.

4, by the way that convex block is arranged on cam, when such cam moves lofty perch, convex block can be passed through and touch triggering mandril Lower end, so that trigger switch disconnects, guarantees cam to triggering mandril touching so that triggering mandril deflects and is detached from trigger switch Dynamic reliability.

5, the guiding surface touched by the lower end setting in triggering mandril convenient for convex block, can guarantee cam well in this way To the reliability that triggering mandril touches, that is, it is easy to trigger mandril deflecting, so as to trigger or be detached from trigger switch well.

6, convex block is set to cam on the side of retarder, avoids self-locking mandril in this way convenient for convex block, i.e., convex Convex block will not be touched with self-locking mandril when wheel rotation, guarantee the reliability of triggering mandril movement, and convex block and cam are arranged to Integral structure is integrally machined molding, be both convenient for the production and processing of convex block and cam, and integral structure intensity is good, durable, uses Service life is long.

7, the lower end of self-locking mandril is equipped with the auxiliary section with cam engagement, and auxiliary section is in up-small and down-big trapezoidal shape, increases Coordinate contact surface product between self-locking mandril and cam, is convenient for the cooperation of self-locking mandril and cam in this way, and cooperate it is reliable, with Guarantee the reliability of self-locking mandril movement.

8, casing includes the first casing and the second casing, and the first casing and the second casing mutually fasten and form the casing, The structure design and machine-shaping of casing, but also the assembly of first components convenient for casing internal, and each components were not only facilitated in this way Between cooperate compact, reduce the overall dimensions of casing, to reduce the overall dimensions of nail gun, improve nail gun well Portability.

9, it is equipped with the trigger elastic component for making trigger automatically reset in casing, can be answered automatically in cocking rear trigger in this way Position, to be arranged to spring to nailing next time, and by trigger elastic component, the elastic force of spring is good, can guarantee trigger well It resets, and spring is standard component, can directly be purchased, is not necessarily to special designing, reduce processing cost or trigger elasticity Part is elastic slice or elastomer block, can also so realize the reset to trigger well.

10, nail gun further include MCU and can free switching nail gun singles or even molding formula switching switch, switching switch with MCU electrical connection so that nail gun can singles or even beat between free switching, to realize different job requirements, to promote nail The working efficiency of rifle.

Detailed description of the invention

The present invention will be further explained below with reference to the attached drawings:

Fig. 1 is the structural schematic diagram of nail gun of the present invention.

Fig. 2 is the cross-sectional view of nail gun of the present invention.

Fig. 3 is the partial structural diagram of nail gun of the present invention.

Fig. 4 is another partial structural diagram of nail gun of the present invention.

Fig. 5 is the structural schematic diagram of mounting base in nail gun of the present invention.

Fig. 6 is the structural schematic diagram of guide sleeve in nail gun of the present invention.

Fig. 7 is the structural schematic diagram latched in nail gun of the present invention.

Fig. 8 is another angled arrangement schematic diagram latched in nail gun of the present invention.

Fig. 9 is the structural schematic diagram of guide rail in nail gun of the present invention.

Figure 10 is blank-run prevention mandril action schematic diagram when following closely in nail gun of the present invention without rifle.

Figure 11 is the enlarged drawing of A in Figure 10.

Figure 12 is prevention and control topping bar action schematic diagram when having rifle nail in nail gun of the present invention.

Figure 13 is the enlarged drawing of B in Figure 12.

Figure 14 is nailing component in nail gun of the present invention and send the local fit structure schematic diagram between screw assembly.

Figure 15 is the partial structural diagram that screw assembly is sent in nail gun of the present invention.

In Figure 16 in nail gun of the present invention jacking block structural schematic diagram.

Figure 17 is to insure push rod component in nail gun of the present invention and the part between screw assembly is sent to cooperate cross-sectional view.

Figure 18 is the structural schematic diagram that push rod component is insured in nail gun of the present invention.

Figure 19 is the structural schematic diagram after going out nail cover board in nail gun of the present invention and nail seat plate is dismantled out.

Figure 20 is to go out nail cover board and the structural schematic diagram after the locking of nail seat plate out in nail gun of the present invention.

Figure 21 is the structural schematic diagram in nail gun of the present invention after movable guiding rail pull-out.

Figure 22 is the structural schematic diagram in nail gun of the present invention after movable guiding rail push-in.

Figure 23 is the structural schematic diagram of movable guiding rail in nail gun of the present invention.

Marked the names of the parts are as follows in figure:

100, casing；110, the first casing；120, the second casing；130, handle position；

21, trigger；211, shaft；212, trigger elastic component；22, motor；23, trigger switch；24, mandril is triggered；241, Turn hole；242, card slot；243, guiding surface；25, self-locking mandril；251, auxiliary section；26, torsional spring；27, power switch；28, switch Switch；

31, the first cylinder；32, first piston；33, the second cylinder；34, second piston；341, piston core；3411, bayonet； 342, piston bush；343, connector sleeve；

41, crank；42, connecting rod；

51, retarder；52, transmission shaft；53, cam；531, convex block；

61, fixing seat；62, striker；63, go out nail seat plate；631, extension；632, card slot is locked；633, boss；6331, Notch；634, the hinged boss of seat board；6341, hinge column；64, go out nail cover board；641, the hinged boss of cover board；642, cover board is hinged Hole；65, nail mouth；

71, guide-rail plate；711, grab；72, movable guiding rail；721, holding tank；73, nail block is sent；731, pushing part；74, it send Follow closely elastic component；741, the first spring；742, second spring；75, elastic component jacking block；

81, it latches；811, limited step；812, open slot；813, inclined-plane is pushed；814, mounting hole；82, lock elasticity Part；

9, unlocking mandril；

10, mounting base；101, mounting groove；102, notch；103, it perforates；104, airflow hole；

11, guide rail；111, sliding slot；112, port；

12, guide sleeve；121, gas port；122, side opening；123, ring-shaped step；124, the first sealing ring；

131, discharge cock；132, casing support；1321, it is open；133, movable internal pipe；134, connecting rod；1341, it connects Portion；1342, fixed part；135, insure mandril；1351, bending part；1352, vertical portion；13521, parallel side plate；13522, it is oriented to Slot；1353, support portion；136, frame is touched；1361, movable part；1362, touch part；137, elastic component is touched；138, spiral shell is adjusted It is female；

141, blank-run prevention mandril；142, pin axis；143, jacking block；1431, ontology；1432, the first pushing part；1433, Two pushing parts；144, spacer pin；145, anti-console keyboard torsional spring；

15, pressure handle is locked；151, snap-on is locked；152, hinged lug；1521, hinged lug hole；153, rotation hole；

16, pin shaft；

17, active button；171, latch hook；172, button hinge hole；173, button-spring part；

18, back seat；181, installation cavity；182, back seat hinge hole；

19, articulated shaft；

200, battery pack.

Specific embodiment

Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.It is to be appreciated that following "upper", "lower", "left", "right", " longitudinal direction ", " transverse direction ", "inner", "outside", "vertical", "horizontal", "top", the instructions side such as "bottom" The word of position or positional relationship is based only upon orientation or positional relationship shown in the drawings, retouches only for the purposes of the description present invention and simplification It states, rather than device/element of indication or suggestion meaning must have a particular orientation or be constructed and operated in a specific orientation, Therefore it is not considered as limiting the invention.

As shown in Fig. 1 to 23, the present invention provides a kind of nail gun of reliable operation, including casing 100, trigger 21, motor 22, First cylinder 31, the second cylinder 33, crank 41, connecting rod 42, nailing component and screw assembly is sent, casing 100 is cabinet, both side Just the machine-shaping of casing in turn ensures the insulating properties of nail gun, and safety when guaranteeing that nail gun uses, the second cylinder 33 is located at In first gas, 31 cylinder, it is equipped with first piston 32 in the first cylinder 31, is equipped with second piston 34 in the second cylinder 33, connecting rod 42 and the The transmission connection of one piston 32, motor 22 are sequentially connected by transmission mechanism and crank 41 and drive first piston 32 by connecting rod 42 It is axially moved in the first cylinder 31, the off-centered side of first piston 32 is equipped with the sliding for axially penetrating through first piston 32 Hole, i.e. sliding eye eccentric setting, first piston 32 by sliding eye are sheathed on the outside of the second cylinder 33 and along the second cylinders 33 Axial direction movement, circulation air flue is equipped between the first cylinder 31 and the second cylinder 33, nailing component includes fixing seat 61, hits Needle 62 goes out nail seat plate 63 and goes out nail cover board 64, and nailing component lower end is equipped with nail mouth 65, and striker 62 is connect with second piston 34, For the movement of first piston 32 to compress the gas in the first cylinder 31, the gas of compression is sent to the second cylinder 33 by the air flue that circulates, The gas of compression is applied to the enough atmospheric pressures of second piston 34, and the release of second piston 34 is simultaneously rapidly transported downwards under this atmospheric pressure It moves so that striker 62 strikes rifle nail, sending screw assembly includes guide-rail plate 71, the movable guiding rail 72 cooperated with guide-rail plate 71 and pushing rifle Nail send nail block 73, movable guiding rail 72 and send nail block 73 between be equipped with for send nail block 73 reset send nail elastic component 74, send nail Elastic component 74 is specially spring, and the elastic force of spring is good, guarantees good motive force, and spring is standard component, can directly be purchased Assembly uses afterwards, does not have to special designing, and spring is arranged to include the first spring 741 and second spring 742, the first spring 741 and second spring 742 between the upper and lower every setting, improve the motive force for sending nail elastic component, further to guarantee to send nail block to send Follow closely effect.

In the present embodiment, nail gun includes trigger switch 23, and trigger 21 is equipped with to trigger to trigger after cocking 21 and open 23 triggering mandril 24 is closed, transmission mechanism includes retarder 51, the transmission shaft 52 being sequentially connected with retarder 51 and is sheathed on biography Cam 53 on moving axis 52 is equipped with self-locking mandril 25, to push away when cam 53 moves lofty perch between cam 53 and trigger switch 23 It moves self-locking mandril 25 to trigger trigger switch 23 and make to trigger the disengaging trigger switch 23 of mandril 24, cam 53 moves to self-locking when low spot Mandril 25 is detached from trigger switch 23, i.e., self-locking mandril heads on trigger switch, guarantees that trigger switch does not turn off, to guarantee motor Continue to move, to guarantee that nailing process is not interrupted, farther cam movement and the self-locking mandril disengaging touching when cam moves to low spot Hair switch, trigger switch disconnects so that the power supply of motor disconnects, and motor stalling is such to complete an actuation cycle of nail gun To control the movement that motor completes a circulation by way of mechanical structure, compared to passing through position sensor detection in existing It controls, it is more stable and reliable, to guarantee the reliability of nailing, it that is to say the functional reliability for guaranteeing nail gun.

In order to guarantee the reliability of trigger switch triggering, shaft 211 can be set on trigger 21, trigger and set on mandril 24 Turn hole 241 is set, triggering mandril 24 is sheathed in shaft 211 by turn hole 241 so that triggering mandril 24 can move simultaneously with trigger 21 Trigger switch 23 can be triggered, such structure is not only simple in structure and reliably, stabilization is worked at the same time, to guarantee to trigger trigger switch Reliability that is to say the reliability for guaranteeing nail gun nailing to guarantee the reliability of motor operation.

In order to preferably guarantee to trigger the reliability and stability of mandril work, can also be arranged in shaft 211 makes to touch The torsional spring 26 that hair mandril 24 can deflect, triggering mandril 24 are equipped with card slot 242, and 26 one end of torsional spring is fastened in triggering mandril 24 Card slot 242 in, the other end contacts on the block of trigger 21, in this way by torsional spring make trigger mandril generate certain torsion Power keeps working condition so as to make to trigger mandril well, i.e., keeps good trigger bit when needing to trigger trigger switch Set state, after needing to be detached from trigger switch again can remain disengaged from location status well, improve triggering mandril work can By property and stability, will not change because of other external force.

In order to guarantee that the reliability of triggering mandril touch, convex block 531, such cam can be arranged in cam on cam 53 When moving lofty perch, the lower end of triggering mandril can be touched by convex block, so that triggering mandril deflects and is detached from trigger switch, So that trigger switch disconnects, guarantee the reliability that cam touches triggering mandril；Meanwhile convex block 531 being arranged to be located at cam 53 on the side of retarder 51, avoids self-locking mandril in this way convenient for convex block, i.e., when cam rotates convex block will not with it is self-locking Mandril touching guarantees the reliability of triggering mandril movement, and convex block 531 is arranged with cam 53 into a single integrated structure, i.e., one adds Work molding, is both convenient for the production and processing of convex block and cam, and integral structure intensity is good, durable, long service life.

For the cooperation convenient for triggering mandril and convex block, can be touched in the lower end setting of triggering mandril 24 convenient for convex block 531 Guiding surface 243, can guarantee the reliability that cam touches triggering mandril well in this way, that is, be easy to trigger mandril occur it is inclined Turn, so as to trigger or be detached from trigger switch well.

For the ease of the cooperation between self-locking mandril and cam, it can be arranged in the lower end of self-locking mandril 25 and match with cam 53 The auxiliary section 251 of conjunction, and auxiliary section 251 is in up-small and down-big trapezoidal shape, increases and matches splice grafting between self-locking mandril and cam Contacting surface product is convenient for the cooperation of self-locking mandril and cam in this way, and cooperates reliably, to guarantee the reliability of self-locking mandril movement.

For the ease of the processing and manufacturing and promotion portability of nail gun, casing 100 can be arranged to include the first casing 110 With the second casing 120, and handle position 130, the first casing 110 and the second machine are equipped on the first casing 110 and the second casing 120 Shell 120 mutually fastens and forms the casing 100, and two handles snap together the handle to form nail gun entirety for 130, this Sample not only facilitated casing structure design and machine-shaping, but also convenient for casing internal first components assembly, and each components it Between cooperate compact, reduce the overall dimensions of casing, to reduce the overall dimensions of nail gun, improve nail gun well just The property taken, and there is handle to take for user when in use and hold, it is user-friendly, promote operating efficiency.

Reset after pulling for the ease of trigger, in case pull next time, can be arranged in casing 100 makes trigger 21 certainly The dynamic trigger elastic component 212 resetted, can automatically reset in cocking rear trigger in this way, with to nailing next time, and by trigger Elastic component 212 is specifically configured to spring, since the elastic force of spring is good, can guarantee the reset of trigger well, and spring is mark Quasi- part can be purchased directly, be not necessarily to special designing, reduce processing cost.

In order to guarantee the nailing effect of nail gun, it can be arranged in the upper end in the first cylinder 31 and be locked in second piston 34 The latch components of high point, first piston 32 are equipped with unlocking mandril 9, and unlocking mandril 9 is fixed by bolt and first piston 32, the One piston 32 is moved upwards to drive unlocking mandril 9 to move upwards, and unlocking mandril 9 pushes latch components to be detached from second piston 34, So that second piston 34 discharges, and second piston 34 moves downward under atmospheric pressure so that the impact rifle nail of striker 62, such to pass through Mechanical lock buckle structure is to realize that locking to second piston keeps pressurization, compared to the magnetic force locking side for passing through magnetic part in existing Formula, it is more reliable and stablize, magnetic force will not be caused unstable because of the individual difference of magnetic part or different, and then cause second living The plus-pressure of plug begins to nailing not enough and influences final nailing effect, i.e., is locked by latch components to second piston The fixed mode for keeping pressurization can not only guarantee that nailing effect is good well, and will not due to components unstability factor itself shadow Nailing effect is rung, to guarantee the nailing stability and nailing effect of nail gun, while latch components locking is reliable, is also easy to second Piston abjection, and structure is simple, is also easy to produce and process.

In order to guarantee nailing effect and nailing stability, second piston 34 can be arranged to include piston core 341 and set Piston bush 342 on piston core 341, the upper end of piston core 341 are equipped with the bayonet 3411 cooperated with latch components, pass through work Bayonet and latch components on plug core cooperate to complete locking to second piston and keep pressurizeing, and are not only convenient for latch components to the The locking of two pistons is also convenient for being detached from latch components when second piston release, to guarantee nailing effect and nailing stability；Together When, for the ease of the connection of striker and second piston, nail gun is additionally provided with the connector sleeve 343 connecting with piston core 341, connector sleeve The inner hole and being connected by screw to of 343 insertion 341 lower ends of piston is fixed together, and striker 62 and connector sleeve 343 pass through bolt company It connects and is fixed together, link to be formed with second piston 34, be both convenient for the connection of striker and second piston, and being connected and fixed can It leans on, it is not easily to fall off.

For the ease of the installation and guarantee nailing effect of latch components, mounting base can be set in the upper end in the first cylinder 10, mounting base 10 is in the form of annular discs and matches setting with the shape of first piston 32, and mounting groove 101, lock are equipped in mounting base 10 Buckle assembly is installed in mounting groove 101, and the bottom of mounting base 10 is equipped with the notch 102 protruded into for unlocking mandril 9, unlocking mandril 9 It is both solid convenient for the installation of latch components by setting mounting base and mounting groove across notch 102 and latch components interoperation Calmly, after and moving lofty perch convenient for first piston, unlocking mandril touches latch components, to guarantee that second piston can be released well It puts, to guarantee that nailing does not postpone, and accurate, efficient.

And latch components include the lock elastic component 82 for latching 81 and lock 81 being pushed to reset, lock 81 is equipped with and card The limited steps 811 of mouthfuls 3411 cooperations and the open slot 812 be connected to notch 102, the lower inner side wall of open slot 812 equipped with The promotion inclined-plane 813 that unlocking mandril 9 cooperates is made after latching in disengaging second piston by latching elastic component, and can answered again Position to home position is snapped locking after waiting second piston to reset again, and spiking action as next time is ready, and protects The continuity for demonstrate,proving nail gun work promotes the working efficiency of nail gun, while when lock locks second piston, latching elastic component Elastic force can also guarantee to latch the latching force to second piston well, i.e. second piston will not be detached from easily, only pressurizeed Enough and under the touch of unlocking mandril, second piston can be just detached from power, and by setting open slot and push inclined-plane, in order to Unlocking mandril touches lock, guarantees that lock can accurately be detached from second piston to discharge second piston, to realize nailing；And And latch and be equipped with mounting hole 814 inside 81 rear end, lock 82 one end of elastic component is installed in mounting hole 814, the other end and peace The inner wall for filling seat 10 contradicts, and can be limited well to lock elastic component by setting mounting hole, so that lock elastic component Radial direction does not deviate, and to guarantee the reliability of lock elastic component work, i.e., lock elastic component is stable to the promotion of lock and can It leans on.

For the ease of the axial movement of latch components, guide rail 11, guide rail 11 and mounting groove can be set in mounting groove 101 101 shape matches setting, and guide rail 11 is equipped with sliding slot 111, and latch components are located in sliding slot 111, and the bottom wall of guide rail 11 is equipped with The port 112 being connected to notch 102 can reduce lock in this way and latch the friction between elastic component and mounting groove, and can be very well To latch and lock elastic component movement play good guiding role, with guarantee latch components entirety functional reliability and surely It is qualitative.

In order to guarantee the stability and nailing effect of nailing, the upper end of piston core 341 can be stretched out in the second cylinder 33 Roof, between the upper end of piston core 341 and the roof of the second cylinder 33 be equipped with guide sleeve 12, guide sleeve 12 have a hollow cavity, The hollow cavity of guide sleeve 12 is connected to the inner cavity of the second cylinder 33, and mounting base 10 is equipped with airflow hole 104, airflow hole 104 and the The inner cavity of one cylinder 31 is connected to, and mounting base 10 is equipped with the perforation 103 being pierced by for guide sleeve 12, and guide sleeve 12 is equipped with and airflow hole The gas ports 121 of 104 connections, the hollow cavity connection of 121 guide sleeve 12 of gas port, airflow hole 104 and gas port 121 and guide sleeve The airflow channel is collectively formed in hollow cavity, and the first cylinder 31 is connected to the second cylinder 32, the upper end of piston core 341 with The motor activity of second piston 34 is inserted in the hollow cavity of guide sleeve 12, i.e., when second piston 34 is in high point, piston Core 341 contacts in the roof of the second cylinder 31 in the hollow cavity of second piston insertion guide sleeve 12 and by piston bush 342 Hollow cavity lower end closed so that the first cylinder 31 and the second cylinder 33 be disconnected, is in low in second piston 34 by surface When point, piston core 341 is detached from the hollow cavity of guide sleeve 12 with second piston, and piston bush 342 is not also contacting at the second cylinder 31 Roof inner surface on so that the second cylinder 33 is connected to the first cylinder 31, the upper end of guide sleeve 12 passes through mounting base 10 and first The roof of cylinder 31, the upper end periphery of guide sleeve 12 are equipped with external screw thread and are fixed on the roof of the first cylinder 31 by nut, led to Setting guide sleeve is crossed, not only can well be fixed the second cylinder and mounting base, but also can well be connected the second cylinder and the first cylinder It is logical, it is enough to the plus-pressure of second piston to guarantee, to guarantee the stability and nailing effect of nailing.

It, can be in the upper end side of guide sleeve 12 for the ease of the locking or disengaging between the bayonet in latch components and piston core Wall, which is equipped with, to be passed through for latch components with the side opening 122 with 3411 interoperation of bayonet, convenient for blocking in latch components and piston core Mouth locking is detached from, and is connected reliably, and stability also facilitates structure to design.

Impact force in order to guarantee striker is enough, can be equipped with table in the roof with the second cylinder 33 in the lower end of guide sleeve 12 The ring-shaped step 123 of face cooperation, is equipped with the first sealing ring 124 between ring-shaped step 123 and the roof inner surface of the second cylinder 33, The leakproofness of guide sleeve and the second cylinder junction is enhanced well, guarantees that gas will not be revealed, to guarantee to second piston Plus-pressure is enough, to guarantee that the impact force of striker is enough, and then guarantees nailing effect.

In order to promote the safety in utilization of nail gun, nail gun can also include the insurance mandril group set on 61 side of fixing seat Part, insurance push rod component include discharge cock 131, the casing support being fixed in fixing seat 61 132, are movably arranged at casing support Movable internal pipe 133, the connecting rod 134 being connect with movable internal pipe 133 in 132 and the insurance mandril being connect with connecting rod 134 135, the touch frame 136 that 133 upper end of movable internal pipe is equipped with triggering discharge cock 131 and moves with movable internal pipe 133, so that nail gun Only compressing insurance mandril in nailing so that discharge cock be powered, such cocking, can just make motor rotation to Start nailing, i.e., do not compress insurance mandril, can not cocking but motor rotate, that is to say that nail gun can not be powered work Make, improves safety when nail gun uses well；Simultaneously as distance of the nail mouth apart from plank will affect nailing depth Degree, specially nail mouth is closer apart from plank, and the depth that rifle nail squeezes into plank is deeper, and nail mouth is remoter apart from plank, and rifle nail is beaten The depth for entering plank is more shallow, by the way that insurance mandril 135 is arranged to move along the axially consecutive of movable internal pipe 133, so as to Adjust insurance mandril 135 bottom end and nail mouth 65 between axial distance, the change of this axial distance that is to say nail mouth with The change of distance between plank, in this way by adjusting the axial direction between bottom end and nail mouth of the movable internal pipe to adjust insurance mandril Distance that is to say and adjust the distance between nail mouth and plank, and it is adjustable thus to may be implemented nailing depth, to guarantee nailing effect Fruit can adjust the axial distance between the bottom end and nail mouth of insurance mandril, to guarantee according to the thickness of different planks Good nailing effect, and then be also to improve the adaptability of nail gun, the plank of different-thickness can be played.

In order to guarantee the reliability and stability of nailing depth, connecting rod 134 and movable internal pipe 133 can be passed through into screw thread It connects so that connecting rod 134 can realize axial movement along the axial movement of movable internal pipe 133 by way of screw thread, thus It realizes that nailing depth is adjustable, not only facilitates adjusting, and screw thread self-locking is good, be not susceptible to change after adjusting, to guarantee nailing depth The reliability and stability of degree.

For the ease of adjusting nailing depth, insurance push rod component further includes adjusting nut 138, and adjusting nut 138 is sheathed on The periphery of movable internal pipe 133, rotation adjusting nut 138 can make to be axially moved between movable internal pipe 133 and connecting rod 134, The axial distance between bottom end and nail mouth 65 to adjust insurance mandril 135, and then adjust between nail mouth and plank Distance finally realizes the adjustable of nailing depth, and such behaviour that user is greatly facilitated by way of rotating adjusting nut Make, improves the operation ease of nail gun well, improve user's use feeling and satisfaction.

In order to guarantee to insure the reliability of push rod component touch discharge cock, discharge cock 131 can be arranged in 132 side of casing support, the side wall of casing support 132 are equipped with the opening 1321 stretched out for touching frame 136, touch frame 136 and include Movable part 1361 and touch part 1362, movable part 1361 are connect with the upper end of movable internal pipe 133, and opening is stretched out in touch part 1362 1321 and cooperate with discharge cock 131, touches frame 136 and be axially moved in casing support 132 with movable internal pipe 133 to realize pair The closing or opening of discharge cock, such mode for touching discharge cock, not only touch is stable and reliable, while structure is simple, It is readily produced assembly.

It resets, can be equipped between the upper end of movable part 1361 and the top of casing support 132 for the ease of touching frame For touching the touch elastic component 137 of the reset of frame 136, in this way convenient for the reset for touching frame, to guarantee nail gun work to next nailing The continuity of work, to promote the working efficiency of nail gun.

Since the design of the Structural Design Requirement of nail gun, the structure and its position that can make some components of nail gun is easy By certain limitation, by the way that the longitudinal section of connecting rod 134 is L-shaped, extended between connecting rod and insurance mandril in this way Distance is connected, may make that the design position of insurance mandril is not influenced by other components, it is preferential to guarantee that insurance mandril be followed closely It can just link under the normal service condition of rifle and trigger discharge cock, general maloperation is will not there is a situation where nail gun nailings , the safety in utilization of nail gun is further improved, while also avoiding the movement interference between each component well, to guarantee to follow closely The stability of rifle work.

In order to facilitate connecting rod and insurance mandril between connection, connecting rod 134 can be arranged to include in activity The interconnecting piece 1341 that pipe 133 cooperates and the fixed part 1342 being connect with insurance mandril 135, and be in bar by the setting of interconnecting piece 1341 Shape facilitates the cooperation of interconnecting piece and movable internal pipe, makes to occur between connecting rod and movable internal pipe in particular by helicitic texture Axial movement, and fixed part 1342 is arranged to plate-like, the convenient connection between insurance mandril, difficulty of processing is also reduced, It can be process by simple metal plate punching technique.

In order to simplify the structure of insurance mandril and guarantee the functional reliability of nail gun, insurance mandril 135 can be arranged to Including bending part 1351, vertical portion 1352 and the support portion 1353 connecting with connecting rod 134, vertical portion 1352 includes two pieces symmetrical The parallel side plate 13521 of setting, wherein a parallel side plate 13521 is connect with bending part 1351, it is parallel that support portion 1353 is located at two 13521 lower end of side plate simultaneously links into an integrated entity two parallel side plates 13521, and such insurance mandril is not only simple in structure, easy to process Molding works at the same time reliably, to guarantee the functional reliability of nail gun；Meanwhile insurance 135 whole installation of mandril is plate-like, side Just the machine-shaping for insuring mandril, improves processing efficiency, and then improve the processing efficiency of nail gun entirety, and is specially Metal insures mandril, guarantees that the intensity of insurance mandril is enough, to guarantee durability and promote service life.

In order to compress insurance mandril when guarantee insurance mandril will not shift, can by two parallel side plates 13521 it Between formed guide groove 13522, two parallel side plates 13521 be located at nail seat plate 63 631 two sides of extension setting, compressing in this way It can guarantee that insurance mandril will not shift when insuring mandril, to guarantee that the linkage of insurance mandril can stablize triggering discharge cock, Guarantee the stability of nail gun work.

In order to guarantee safety in utilization of the nail gun without nail when, blank-run prevention mandril 141 can be equipped on nail seat plate 63 out, out It is additionally provided with the pin axis 142 across blank-run prevention mandril 141 on nail seat plate 63, blank-run prevention mandril 141 and send between nail elastic component 74 Equipped with jacking block 143, send nail elastic component 74 that can push jacking block 143, jacking block 143 and then pushing when sending in screw assembly without rifle nail in this way Blank-run prevention mandril 141 will be will insure the axial limiting of mandril 135, to prevent insurance mandril 135 from touching discharge cock 131, i.e., Nail gun cannot complete nailing work, to guarantee safety in utilization of the nail gun without nail when.

In order to guarantee the functional reliability and stability of blank-run prevention mandril, can be equipped on pin axis 142 makes blank-run prevention Mandril 141 keeps the anti-console keyboard torsional spring 145 of operating position, in this way can be well by anti-console keyboard torsional spring after the movement of blank-run prevention mandril State after maintaining movement, to prevent blank-run prevention mandril to be reset to the state before acting, to guarantee the work of blank-run prevention mandril Make reliability and stability.

In order to guarantee to send the stability of nail, the holding tank that nail elastic component 74 is sent in installation can be equipped on movable guiding rail 72 721, due to sending nail elastic component 74 to specifically include the first spring 741 and second spring 742, correspondingly, holding tank 721 also is provided with two It is a and be correspondingly arranged with the first spring 741 and second spring 742, send the front end of nail elastic component 74 to be equipped with elastic component jacking block 75, bullet Property part jacking block 75 be located in holding tank 721, be installed in holding tank by the way that nail elastic component will be sent, and will be sent by elastic component jacking block Nail elastic component is pressed in accommodating chamber and remains elasticity of compression power so as to send and follow closely elastic component, enables and nail elastic component is sent to support always It pushes down and send nail block, send nail block to compress rifle nail and conveyed with following closely rifle, can guarantee to send the pushing direction for following closely elastic component not so well Offset, so that the stability of nail is sent in guarantee；Meanwhile when no rifle is followed closely, nail elastic component 74 is sent to push top by elastic component jacking block 75 Block 143 will be so that blank-run prevention mandril 141 will insure the axial limiting of mandril 135, so that insurance mandril 135 be prevented to stretch and touch and protect Danger switch 131, and elastic component jacking block 75 is contacted with the cooperation of jacking block 143, coordinate contact surface product is big, can preferably carry out to jacking block It pushes, to guarantee that jacking block is enough to the motive force of blank-run prevention mandril, and then guarantees that blank-run prevention mandril limits the axial of insurance mandril Position is reliable.

In order to guarantee that jacking block pushes the reliability and stability of blank-run prevention mandril, jacking block 143 can be movably arranged at receiving Front end in slot 721 and positioned at elastic component jacking block 75, and the spacer pin that jacking block 143 is limited is set in the front end of holding tank 721 144, jacking block can be limited well in this way, prevent jacking block from deviating from, to guarantee that jacking block pushes the reliability of blank-run prevention mandril and steady It is qualitative.

In order to guarantee the working effect of jacking block, jacking block 143 can be arranged to include ontology 1431 and be set to ontology 1431 Both ends and the first pushing part 1432 and the second pushing part 1433 being arranged in a staggered manner, the first pushing part 1432 and blank-run prevention mandril 141 Interoperation, the second pushing part 1433 and 75 interoperation of elastic component jacking block, so that the cross section of jacking block 143 is in step type, this The first pushing part of sample can not only work independently and not interfere with each other with the second pushing part, moreover it is possible to which it is solid to form limit to jacking block well It is fixed.

For the ease of insuring the structure and location layout of mandril and discharge cock, can be opened in insurance mandril 135 with insurance It closes and is equipped with trigger assembly between 131, insurance mandril 135 touches discharge cock 131 by trigger assembly, and trigger assembly is to include The casing support 132 being fixed in fixing seat 61, the movable internal pipe 133 and movable internal pipe that are movably arranged in casing support 132 The connecting rod 134 of 133 connections, insurance mandril 135 are connect with connecting rod 134, by the way that trigger assembly is arranged, extend insurance mandril With the triggering distance of discharge cock, in order to insure the structure and location layout of mandril and discharge cock, design limitations are smaller.

In order to facilitate removing nail seat plate after bail and going out nail cover board, it is hinged with nail seat plate 63 out nail cover board 64 can will to be gone out Setting, and a locking pressure handle 15 is hingedly set on going out nail cover board 64, locking pressure handle 15 is equipped with locking snap-on 151, out nail seat Plate 63 be equipped with locking snap-on 151 cooperate locking card slot 632, in this way after closed and locked pressure handle, can will locking snap-on with Locking clamp slot lock is tight, while after opening locking pressure handle, locking snap-on can be detached from locking card slot, that is to say bail occurring When, pressure handle can be locked by opening, can will quickly go out nail cover board and be dismantled with nail seat plate out, so that bail be taken out, be greatly promoted The operation convenience of nailing component disassembly, while reducing the time of user's disassembly, improve the service efficiency of nail gun, and Improve the working efficiency of user.

For the ease of locking pressure handle and go out the hinged setting between nail cover board, can be cut with scissors setting cover board on going out nail cover board 64 Boss 641 is connect, the hinged boss 641 of cover board is equipped with the hinged boss hole of cover board, and locking pressure handle 15 is equipped with hingedly convex positioned at cover board The hinged lug 152 of 641 two sides of platform, hinged lug 152 are equipped with hinged lug hole 1521, and nail gun further includes pin shaft 16, in this way Pressure handle will be locked with the hinged boss hole of cover board across hinged lug hole for pin shaft and nail cover board is hinged out, to realize locking Pressure handle and go out it is hinged between nail cover board so that locking pressure handle can lay out the rotation of nail cover board to be formed to locking snap-on and locking clamp Locking between slot；Meanwhile the hinged boss 641 of cover board is integrally formed with nail cover board 64 is gone out, and facilitates the machine-shaping of the two, and two Person is structure as a whole, and intensity is good, durable, long service life.

And the two sides for locking pressure handle 15 are respectively provided with rotation hole 153, and rotation hole 153 is inserted at the both ends for locking snap-on 151 It is interior so that locking snap-on 151 can around locking pressure handle 15 rotate, in order to lock snap-on and lock card slot between cooperation, be energy It will go out nail cover board well and be fixed together with nail seat plate out, fixation is reliable and not easily to fall off, guarantees the reliable of nail gun work Property.

In order to facilitate the machine-shaping of locking card slot, two boss 633, two boss 633 can be equipped on nail seat plate 63 out Interval setting is all provided with jagged 6331, notch 6331 forms institute to form the interval trough for merging out nail cover board 64 on two boss 633 Locking card slot 632 is stated, nail cover board out can be limited well in this way, while it is not necessary that locking card slot is separately provided, passing through Notch forms the card slot, not only reduces processing technology, but also can guarantee to lock the intensity of card slot well, to guarantee to follow closely cover board out The reliability of locking is not susceptible to loosen；Meanwhile being integrally formed two boss 633 and nail seat plate 63 out, facilitate the processing of the two Molding, and the two is structure as a whole, intensity is good, durable, long service life.

It, can be in nail seat plate 63 out far from 65 one end of nail mouth for the ease of going out nail seat plate and going out to follow closely the hinged setting of cover board It is equipped with the hinged boss 634 of seat board, the two sides of the hinged boss 634 of seat board are equipped with hinge column 6341, and nail cover board 64 is separate out goes out to follow closely 65 one end of mouth are equipped with cover board hinge hole 642, and cover board hinge hole 642 and hinge column 6341 cooperate will go out to follow closely cover board 64 and go out to follow closely Seat board 63 is hinged, in this way after disassembly drops out nail cover board, follows closely cover board out and still links together with nail seat plate out, will not be complete It takes off entirely, makes to show that nail cover board will not be lost, and after taking out bail, and will directly go out nail cover board locking, and can realize nail gun Normal nailing work, not only makes nail gun easy to operate, and promote the service efficiency of nail gun, and then improve the work of user Efficiency；Meanwhile hinge column 6341 and the hinged boss 634 of seat board are integrally formed, the hinged boss 634 of seat board and 63 one of nail seat plate out Molding, facilitates the machine-shaping of three, and three is structure as a whole, intensity is good, durable, long service life.

For the ease of locking the machine-shaping of snap-on, locking snap-on 151 can be arranged to by metal strip one bending shape At so both convenient for the machine-shaping of locking snap-on, and locking snap-on intensity is good, durable, long service life.

In order to promote nail seat plate and go out the durability of nail cover board, metal can be set by nail seat plate 63 out and go out nail seat plate, And goes out nail cover board 64 and be set as metal nail cover board out, improve out nail seat plate well and go out to follow closely the intensity of cover board, and then promotion Nail seat plate and go out the durability both service life of nail cover board out.

In order to guarantee to send nail to stablize and reliable, active button 17 can be set on movable guiding rail 72, on active button 17 Equipped with latch hook 171, guide-rail plate 71 is equipped with the grab 711 that cooperate with latch hook 171, pressing active button 17 can make latch hook 171 and Grab 711 is detached from, and after installing rifle nail on guide-rail plate, movable guiding rail is buckled, and pass through the cooperation of latch hook and grab To lock together movable guiding rail and guide-rail plate, to guarantee to send nail to stablize and reliable.

For the ease of the pressing operation to active button, back seat 18 can be equipped in 72 rear end of movable guiding rail, on back seat 18 Equipped with installation cavity 181, active button 17 is articulated in installation cavity 181, after in this way being partly or entirely hidden in active button In the installation cavity of seat, the aesthetic appearance of nail gun entirety is promoted, while again convenient for the pressing operation to active button.

It, can be in the connection of active button 17 and latch hook 171 for the ease of the hinged setting between active button and back seat Place's setting button hinge hole 172, the side wall of installation cavity 181 are equipped with back seat hinge hole 182, further include articulated shaft 19, hinged in this way Axis passes through back seat hinge hole and button hinge hole, and active button and back seat is hinged, so that active button can be around hinge Spindle rotation, thus realize the locking or disengaging between latch hook and grab, it is user-friendly, promote the easy-to-use of user Property.

In order to enable pressing active button when more easily and locking it is relatively reliable, can the rear end of active button 17 also Equipped with the button-spring part 173 resetted for active button 17, both it had been convenient for taking off in latch hook and grab by the way that button-spring part is arranged From when pressing, press reliability that is laborsaving and light, and both can guaranteeing locking when latch hook and grab are locked, be not easy pine It is dynamic, and latch hook 171 and active button 17 are integrally formed, grab 711 and guide-rail plate 71 are integrally formed, and improve latch hook and card in this way The intensity of hook improves the durability and service life of latch hook and grab.

In order to preferably promote the operation ease of nail gun, can be arranged by 100 rear end of casing and at handle position 130 Battery pack 200, battery pack 200 are lithium battery pack, are powered by battery pack 200 to entire nail gun, so that nail gun completes nailing work Make, such nail gun is not necessarily to be impeded by power supply line when in use, and the more convenient use nail gun of energy can be used for outdoor work Industry greatly improves the ease of use of nail gun.

In order to further promote safety when nail gun uses, a power switch 27, and power supply can also be arranged in nail gun Switch 27 is main circuit switching, and power switch 27 is set to the top of trigger 21, pull pull 21 machines after power switch 27 be connected to so that The entire circuit communication of nail gun, so that nail gun is only after the closure of power switch 27, nail gun can just be worked normally, and more can guarantee nail The safety in utilization of rifle.

In order to further enhance the ease of use of nail gun, a MCU and one, which can also be arranged, in nail gun to be followed closely with free switching The switching switch 28 of rifle singles or company's molding formula, switching switch 28 are electrically connected with MCU, so that nail gun can be between singles or company beat Free switching, to realize different job requirements, to promote the working efficiency of nail gun；Specifically, when switching switch 28 switches It to when connecting molding formula, clasps trigger 21 and does not unclamp, and compress insurance mandril 135 constantly to trigger discharge cock 131, can be realized The continuous nailing of nail gun；When switching switch 28 switches to singles' mode, clasps trigger 21 and compress insurance mandril 135 to trigger Discharge cock 131 carries out a nailing job, even if trigger, which clasps, does not put and compress again insurance mandril 135, nail gun A nailing only can be completed, and if desired nailing again, can only secondary cocking 21 can just realize nailing again.

In order to guarantee the reliability of each switch triggering, by trigger switch 23, power switch 27, switching switch 28 and can protect Danger switch 131 is all provided with and is set to microswitch, designs convenient for the cooperation of microswitch and mechanical structure and structure, and microswitch and The high reliablity of mechanical structure triggering, to guarantee the reliability and stability of each movement, while microswitch is common electronics Element is not necessarily to special designing, and directly buying application reduces the manufacturing cost of each switch.

It should be understood that unlocking mandril can also pass through screw or interference or clamping or riveting or stickup or injection molding or welding It is fixed on first piston.

It should be understood that trigger elastic component may be elastic slice or elastomer block, can also so realize well to trigger It resets.

It should be understood that an articulated slab can also be fixedly installed in the upper end of nail seat plate out, cover board and articulated slab shape are followed closely out At hinged, i.e., nail seat plate includes a detachably hinged plate out.

It should be understood that can also only go out nail seat plate is that metal goes out nail seat plate；Or only going out nail cover board is that metal goes out to follow closely Cover board.

It should be understood that can also only latch hook and active button be integrally formed；Or only grab and guide-rail plate one at Type.

It should be understood that nail gun can also be powered by power supply line.

In addition to above preferred embodiment, there are other embodiments of the invention, and those skilled in the art can be according to this Invention makes various changes and modifications, and as long as it does not depart from the spirit of the invention, should belong to appended claims of the present invention and determines The range of justice.

Claims (10)

1. a kind of nail gun of reliable operation, including casing, trigger, motor, the first cylinder, the second cylinder, crank, connecting rod, nailing Component and screw assembly is sent, the second cylinder is located in the first cylinder, first piston is equipped in the first cylinder, equipped with the in the second cylinder Two pistons, connecting rod and first piston are sequentially connected, and motor is connect with crank gearing by transmission mechanism and drives the by connecting rod One piston is axially moved in the first cylinder, circulation air flue is equipped between the first cylinder and the second cylinder, which is characterized in that described Nail gun includes trigger switch, and trigger is equipped with the triggering mandril that trigger switch can be triggered after cocking, and transmission mechanism includes Retarder, the transmission shaft being sequentially connected with retarder and the cam being sheathed on transmission shaft, are equipped between cam and trigger switch Self-locking mandril pushes self-locking mandril triggering trigger switch and makes to trigger mandril disengaging trigger switch when cam moves lofty perch, Cam moves to self-locking mandril when low spot and is detached from trigger switch.

2. nail gun according to claim 1, which is characterized in that the trigger is equipped with shaft, and triggering mandril, which is equipped with, to be turned Hole, triggering mandril is sheathed in shaft by turn hole so that triggering mandril with trigger movement and can trigger trigger switch.

3. nail gun according to claim 2, which is characterized in that being also arranged in the shaft, which enables to trigger mandril, occurs partially The torsional spring turned, triggering mandril are equipped with card slot, and one end of torsional spring is fastened in the card slot of triggering mandril, and the other end contacts at trigger On block.

4. nail gun according to claim 3, which is characterized in that the cam is equipped with convex block, when cam moves lofty perch Convex block touches the lower end of triggering mandril so that triggering mandril deflects and is detached from trigger switch.

5. nail gun according to claim 4, which is characterized in that the lower end of the triggering mandril is equipped with convenient for convex block touch Guiding surface.

6. nail gun according to claim 4, which is characterized in that the convex block is located at cam on the side of retarder, Convex block and cam integral structure.

7. nail gun according to claim 1, which is characterized in that the lower end of the self-locking mandril is equipped with matches with cam engagement Conjunction portion, auxiliary section are in up-small and down-big trapezoidal shape.

8. nail gun according to claim 1, which is characterized in that the casing include the first casing and the second casing, first Casing and the second casing, which mutually fasten, forms the casing.

9. nail gun according to claim 1, which is characterized in that be equipped with the trigger bullet for making trigger automatically reset in the casing Property part.

10. nail gun according to claim 1, which is characterized in that the nail gun further includes MCU and can free switching nail gun list It beats or even the switching switch of molding formula, switching switch is electrically connected with MCU.