CN105619338A

CN105619338A - Pneumatic dowel gun

Info

Publication number: CN105619338A
Application number: CN201610137090.8A
Authority: CN
Inventors: 赵红九; 赵红标
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-11
Filing date: 2016-03-11
Publication date: 2016-06-01
Anticipated expiration: 2036-03-11
Also published as: WO2017152740A1; CN105619338B

Abstract

The invention relates to a pneumatic dowel gun. The pneumatic dowel gun comprises a power part and an action part. The power part comprises an air chamber, a hand shank located under the air chamber, a supporting plate located on the front-outer portion of the air chamber, an air cylinder installed in the air chamber, a beating piston, a rear beating balance valve and an air course control device located in the hand shank. The action part comprises a slewing device installed on the supporting plate, a piston rod, a return pin hammer installed at the front end of the piston rod, a rotary chamber, a nail chamber, a gun mouth, the supporting plate, a cartridge clip installed under the supporting plate, wherein the gun mouth and the supporting plate are used for positioning the nail chamber. A cavity for installing the air cylinder is formed inside the air chamber of the dowel gun. A high-pressure air cavity is formed between the air cylinder and the air chamber and communicates with a high-pressure air course inside the hand shank. The pneumatic dowel gun has the beneficial effects that by combining a newly designed dowel, the problems that a bamboo-wood nail is prone to being fractured during beating due to the fact that the bamboo-wood nail cannot bear the required force for tearing wood fiber and the required force for overcoming gradually increased friction and allowing the bamboo-wood nail to enter wood are solved, and the speed and the efficiency of beating the bamboo-wood nail into the wood are greatly improved.

Description

A kind of pneumatic dowel rifle

Technical field

The present invention relates to a kind of air nail gun, particularly relate to a kind of pneumatic dowel rifle.

Background technology

Timber Joining Technology mainly comprises in the world at present: gluing connection, nail connect and pin connects, tenon connection. Nail pin connection is Joining Technology the most frequently used during timber connects, and wherein uses the widest with air nail gun and iron gas nail Joining Technology. Iron gas nail Joining Technology uses air pump to provide power, is hit the connection that gas nail of forging iron completes timber fast by air nail gun; The use feature efficient, easy because of it is extensively used in building, furniture, and the wood materials in decoration industry connects.

But in iron gas nail use procedure, because its material factors exists some real use problems that cannot overcome; It is mainly reflected in: under vibrations occasion, iron nail is higher than the hardness of wood, connection loosens, ferrous material easily gets rusty in wet environment easily to occur nail on bigger timber to cause, reduce strength of joint, metal to cause with timber unlike material and is connected that appearance looks elegant degree is not good enough, iron air nail is too tiny cannot reclaim, in timber ferric remains air nail can cause cutter head damage and make to contain follow closely timber cannot recycling thus be unfavorable for environmental protection.

And Chinese tradition tenon structure because of wood and wood between great friction coefficient, by the similar elastic deformation amount of power, make to connect between timber, antidetonation firmness is better than iron nail and connects, and substitutes iron air nail with bamboo or wooden peg, realizes the connection to materials such as timber as tenon structure; The corresponding problem weakening in above-mentioned iron air nail technique occur with regard to eliminating. The nearly more than ten years do not stop having the form of various bamboo or raft nail and manufacture craft to occur, but how all operational path emphasis to be placed in the hardness improving bamboo or wooden peg and intensity, owing to bamboo or the hardness of timber and the uniformity coefficient of hardness are under material limits, use which kind of technique present stage all cannot reach hardness and the uniformity coefficient of metal, this enters the strength needed for timber with regard to the frictional force making bamboo or wooden peg body to bear to tear xylon and overcoming constantly increase, cause bamboo or wooden peg hit beat time decompose themselves; This kind applies mechanically the mode of thinking that iron nail is directly squeezed into, and directly hits the meaning played bamboo or wooden peg and make its mode directly squeezing into timber as hitting air nail of forging iron not possess reality owing to squeezing into the problems such as the low instability of rate and implement with air nail gun.

Now commercially, can be used for bamboo dowel air nail gun little, when squeezing into, easily there is the situations such as split, fracture owing to following closely the reason of material, seriously affect proceeding of operation in bamboo wooden peg.

Summary of the invention

It is an object of the invention to the bamboo dowel air nail gun for prior art production due to its reasons in structure, cause bamboo wooden peg when squeezing into, easily there is split in bamboo wooden peg, the situations such as fracture, the serious deficiency proceeded affect operation, and provide a kind of adopt first nail after go out the circulation action structure followed closely so that bamboo wooden peg is when squeezing into, not easily there is split, a kind of pneumatic dowel rifle of the situations such as fracture.

The object of the present invention is achieved like this:

A kind of pneumatic dowel rifle, comprises power section and action part, it is characterised in that:

Described power section comprises the air chamber of monoblock casting, it is positioned at the handle of air chamber bottom, the cylinder being arranged in air chamber, it is positioned at hitting of cylinder and beats piston, the forward play equilibrium valve that control high pressure gas flow to and forward play valve seat and after hit equilibrium valve and after hit valve seat, and be arranged in the route controller of handle;

Described operating member divides and comprises turning device, connecting the piston rod hitting dozen piston, the back stitching being arranged on piston rod front end is hammered into shape, and the thorax that turns in constraint back stitching hammer and integral power path with following closely thorax and is positioned at the rifle mouth of nail thorax front end, it is positioned at the support plate below rifle mouth, and it is positioned at the cartridge clip below support plate;

Described piston rod through hit behind cylinder front end and air chamber front end equilibrium valve and after hit valve seat and extend to air chamber outside, piston rod can not rotate around its axis; Described back stitching hammer is movably arranged on the end that piston rod is positioned at air chamber outside, and back stitching hammer can rotate around the axis of piston rod; Back stitching hammer runs through two end face, the lower section that is positioned at piston rod axis and piston rod axis equidistant parallel is provided with two round pin holes, described round pin hole is respectively arranged with hole pin and nail pin, the front portion of described hole pin is circular cone tip, the front portion of nail pin is tack, and the length of hole pin is greater than the length of nail pin, the end that described hole pin and nail pin are positioned at back stitching hammer rear is all raised with one and hits pin cap, described in hit the diameter of the round pin hole that the diameter of pin cap is greater than on back stitching hammer; The underface of described piston rod is parallel with piston rod to be fixedly installed a bar shaped and hits hammer, and the front end that hammer is hit in described bar shaped is positioned at the rear of back stitching hammer.

Described piston rod front portion line centered by main rod body axis is provided with step axle, step axle front end is symmetrically arranged with one pair of lug, described back stitching hammer is for cylindrical, its center is provided with the lug grooves hole adapted with lug shape, size, the lug of step axle front portion is through, behind lug grooves hole, back stitching hammer can rotate around step axle.

The described thorax that turns is cylinder-like structure, its rear portion is positioned at outer wall place, air chamber front end, heavy hole centered by piston rod axis, back stitching hammer is arranged in the bore which turning thorax and can be movable along bore which, and described turning device is arranged on and turns thorax near the outside of one end of air chamber, the position that turns between thorax and support plate.

The described back stitching hammer outside of hammer body and hammer body are axially arranged with the sliding wing of bar shaped in parallel, described in turn the sliding wing groove being processed with straight line on thorax thorax body, the sliding wing of bar shaped on back stitching hammer hammer body is embedded in sliding wing groove, and back stitching hammer can not relative to turning thorax rotation.

Described nail thorax is cylindrical-shaped structure, the rear portion of nail thorax is closely connected in the front portion turning thorax, described rifle mouth rear portion is provided with half slot, the front portion insertion of nail thorax is arranged in the half slot at rifle mouth rear portion, run through two end faces of nail thorax and it is provided with nail thorax axis being parallel and hammer the corresponding hole pin hole of upper two nail and nail pin groove with back stitching into shape, described two hit pin after back stitching hammer, are placed in hole pin hole and nail pin groove; Described rifle mouth lower front, runs through rifle mouth and is provided with out nail, described in go out nail the axis axis that hits hammer with bar shaped overlap; The rear portion of described rifle mouth is provided with a half slot, the size of described half slot is mated mutually with the external diameter size of nail thorax, position corresponding with the nail pin groove of nail thorax on the body of described half slot is provided with long strip shape and crosses nail groove hole, cartridge clip was positioned at below nail groove hole, and the shape size crossing nail groove hole is mated mutually with the shape size of tenon nail in cartridge clip.

Described cylinder is horizontally set in air chamber, fixed connecting piece vertically it is provided with between the outer side wall of cylinder and the inner side-wall of air chamber, the air chamber of fixed connecting piece both sides keeps through, a high pressure air cavity is formed between described cylinder and air chamber, former and later two end faces of cylinder are all arranged in high pressure air cavity, having offered induction trunk on the sidewall of described air chamber, described induction trunk makes the high-pressure gas circuit of high pressure air cavity and handle inner through; Hit equilibrium valve after being provided with between the front end of described air chamber, air chamber and cylinder, after hit equilibrium valve by after hit the end that valve seat is arranged on air chamber front end, after hit equilibrium valve the front end face of end face and cylinder fit tightly and be connected; Being provided with forward play equilibrium valve between the rear end of described air chamber, air chamber and cylinder, forward play equilibrium valve is arranged on the end of air chamber rear end by forward play valve seat, and fits tightly between the end face of forward play valve seat and the aft end face of cylinder and be connected.

Having a groove caved in described handle, the groove of handle and inside thereof is integrated casting, and groove is provided with route controller;

Described route controller comprises the trigger being arranged on handle front portion, it is arranged on the first control air valve at trigger rear, little cylinder that be connected with the first control air valve by pipeline, the groove that is arranged in handle and piston, it is arranged on the action spring at little cylinder two ends, the action bar being fixedly connected with piston, corresponding with action bar it is provided with two needle-valves, one of them needle-valve is connected with forward play equilibrium valve, forward play valve seat by gas circuit, another needle-valve by gas circuit and after hit equilibrium valve, after hit valve seat connect.

Described turning device comprise be arranged on the band gear turned between thorax rear portion and support plate revolving sleeve, be enclosed within turn the outer one end of thorax be fixed on turn on thorax torsion spring, be enclosed within and turn the thorax that rotates on thorax and rotate and the master wheel that is connected with the torsion spring the other end and the transition gear unit being arranged in support plate; Revolving sleeve rear portion is processed with groove, and at air chamber, outer and groove correspondence position is raised with small lugs.

The present invention has the following advantages:

1. the present invention adopts the structure of novel air nail gun, and when playing nail, rifle mouth is first needing to beat punching in the structure of nail, greatly reduces dowel itself like this and easily breaks and the problem of insufficient strength, can greatly improve the speed beaten and follow closely simultaneously.

2. substitute iron with the straight nail of bamboo or wood and directly follow closely the advantage having in technical feature; First due to bamboo wood in attachment force, the attachment force that the attachment force between institute's connecting object is produced by the frictional coefficient that the frictional coefficient between wood wood is greater than between hophornbeam, bamboo or wooden peg higher than use iron nail; With elastic deformation amount similar between material so that use bamboo or wooden peg to connect in the environment shaken and rock relatively more stable firm in use iron nail; Compared to the oxidizing reaction of metallic iron, it may also be useful to bamboo or wooden peg can not oxidation corrosions in wet environment, it may also be useful to the bamboo of similar materials or wooden peg are to connecting between timber and without head of a nail structure, the iron nail that the visual attractiveness after treatment is better than unlike material connects.

Accompanying drawing explanation

The master that Fig. 1 is pneumatic dowel rifle provided by the invention looks sectional structure schematic diagram.

Fig. 2 be pneumatic dowel rifle provided by the invention turn thorax, nail thorax is divided and is overlooked sectional structure schematic diagram.

Fig. 3 be pneumatic dowel rifle provided by the invention turn thorax, the three-dimensional sectional structure schematic diagram that divides of nail thorax.

Fig. 4 is the three-dimensional sectional structure schematic diagram of the rifle mouth local of pneumatic dowel rifle provided by the invention.

The three-dimensional sectional structure schematic diagram in the back stitching hammer portion of Fig. 5 pneumatic dowel rifle provided by the invention.

Fig. 6 is the left view structural representation of the back stitching hammer part of pneumatic dowel rifle provided by the invention.

Fig. 7 is the turning device revolving sleeve outer mounting structure schematic diagram of pneumatic dowel rifle provided by the invention.

Fig. 8 is the turning device revolving sleeve interior structure schematic diagram of pneumatic dowel rifle provided by the invention.

Fig. 9 be pneumatic dowel rifle provided by the invention turn thorax, revolving sleeve spatial rotational position structural representation.

Figure 10 be pneumatic dowel rifle provided by the invention turning device in revolving sleeve spatial positioning structural representation.

Figure 11 is the main TV structure schematic diagram of route controller of pneumatic dowel rifle provided by the invention.

Figure 12 is the route controller left view structural representation of pneumatic dowel rifle provided by the invention.

Figure 13 is the handle portion sectional structure schematic diagram of pneumatic dowel rifle provided by the invention.

In figure: 1, air chamber; 2, handle; 3, cylinder; 4, dozen piston is hit; 5, forward play equilibrium valve; 6, equilibrium valve is hit after; 7, route controller; 8, turning device; 9, piston rod; 10, back stitching hammer; 11, thorax is turned; 12, thorax is followed closely; 13, rifle mouth; 14, support plate; 15, cartridge clip; 16, hole pin; 17, pin is followed closely; 18, hammer is hit in bar shaped; 19, lug; 20, lug grooves hole; 21, the sliding wing of bar shaped; 22, wing groove is slided; 23, nail is gone out; 24, nail groove hole is crossed; 25, fixed connecting piece; 26, high pressure air cavity; 27, induction trunk; 28, valve seat is hit after; 29, forward play valve seat; 30, revolving sleeve; 31, torsion spring; 32, master wheel; 33, transition gear unit.

Embodiment

It is an object of the invention to provide one and have employed double-click pin parallel arrangement, by swinging, two hit pin turns to respectively to hit and beats immediately below piston 4 axis, and hit hammer 18 and back stitching hammer 10 drive in the bar shaped hitting dozen piston 4 body of rod epirelief under, completing to get hole successively and squeeze into the pneumatic dowel rifle of the action of dowel along hole, concrete structure is as follows:

A kind of pneumatic dowel rifle, as shown in Fig. 1 ~ 9, comprises power section and action part, is wherein the propulsion source that power section is whole action, and action part has been punching, has squeezed into dowel and the structure of conversion action; In power section, this dowel rifle adopts high pressure gas as propulsion source, the piston in cylinder 3 is promoted by high pressure gas, and the piston rod 9 being fixedly connected with piston outwards outputting power, power section adopts and cylinder 3 two ends can be made to enter the structure of high pressure gas, comprise in the support plate 14 of the handle 2 below air chamber 1 part of monoblock casting and air chamber 1 and front outside, air chamber 1 cylinder 3 installed and hit and beat piston 4, control high pressure draft to equilibrium valve and valve seat and handle 2 in the route controller 7 installed;

Outside air chamber 1 part, front portion is support plate 14, support plate 14 being connected and installed for operating member, and air chamber 1 inside is high pressure gas flowing and the cavity installing cylinder 3; A fixed connecting piece 25 vertically it is provided with between the outer side wall of cylinder 3 and the inner side-wall of air chamber 1, the air chamber 1 being positioned at fixed connecting piece 25 both sides keeps through, a high pressure air cavity 26 is formed between cylinder 3 and air chamber 1, former and later two end faces of cylinder 3 are all arranged in high pressure air cavity 26, the sidewall of air chamber 1 is offered an induction trunk 27, has made the high-pressure gas circuit of high pressure air cavity 26 and handle 2 inside through by this induction trunk 27; Equilibrium valve 6 is hit after being provided with between the front end of air chamber 1, air chamber 1 and cylinder 3, after hit equilibrium valve 6 by after hit the end that valve seat 28 is arranged on air chamber 1 front end, after hit equilibrium valve 6 the front end face of end face and cylinder 3 fit tightly and be connected, before making high pressure air cavity 26 and cylinder 3, end face completely cuts off, when after hit valve seat 28 mesohigh gas route controller 7 control under be blocked time, high pressure gas in high pressure air cavity 26 is moved after hitting equilibrium valve 6 after promoting, high pressure air cavity 26 mesohigh gas enters from cylinder 3 front end, promotes to hit to beat after piston 4 has moved backward and hits; It is provided with forward play equilibrium valve 5 between the rear end of air chamber 1, air chamber 1 and cylinder 3, forward play equilibrium valve 5 is arranged on the end of air chamber 1 rear end by forward play valve seat 29, and fit tightly between the end face of forward play equilibrium valve 5 and the aft end face of cylinder 3 and be connected, high pressure air cavity 26 is completely cut off with cylinder 3 aft end face, when forward play valve seat 29 mesohigh gas is blocked under route controller 7 controls, high pressure gas in high pressure air cavity 26 is moved after promoting forward play equilibrium valve 5, high pressure air cavity 26 mesohigh gas enters from cylinder 3 rear end, promotes to hit and beats piston 4 and moved forward forward play.

Above-mentioned operating member divides the piston rod 9 comprising and connecting and hit in cylinder 3 and beat piston 4, it is arranged on the back stitching hammer 10 of piston rod 9 front portion, constraint back stitching hammer 10 and integral power path turn thorax 11 and nail thorax 12, locating pin thorax 12 also coordinates the rifle mouth 13 and the support plate 14 that make dowel enter nail thorax 12, and the cartridge clip 15 installed below support plate 14;

Cylinder 3 hits beat and piston 4 is provided with piston rod 9, piston rod 9 is the long rod that square lower section, cross section is protruding or circular lower section is protruding, the body of rod is arranged in the vertical plane by cylinder 3 medullary ray with main axis, and piston 4 compact siro spinning technology is beaten with hitting in the position with cylinder 3 axis being parallel, piston rod 9 forward through fight back hit after air chamber 1 front end is installed equilibrium valve 6 and after pass air chamber 1 after the hole of similar shape hit after valve seat 28 on wall and airtight pad, after hitting valve seat 28 after being subject to, the confined piston bar 9 in wall similar shape hole can not rotate around main rod body axis, ensure that the bar shaped of piston rod 9 body projection is hit hammer 18 parts and is in immediately below body of rod main axis, piston rod 9 front portion line processing step axle centered by main rod body axis, cylinder shape back stitching is hammered 10 center processing corresponding circle holes into shape and is arranged on step axle, stopped by the anterior restraint device of step axle, make back stitching hammer 10 can only rotate around step axle and synchronously move forward and backward with piston rod 9, specifically, piston rod 9 front portion line centered by main rod body axis is provided with step axle, step axle front end is symmetrically arranged with one pair of lug 19, back stitching hammer 10 is cylindrical, the lug grooves hole 20 that its center is provided with lug 19 shape, size adapt, the lug 19 of step axle front portion is through, behind lug grooves hole 20, back stitching hammer 10 can rotate around step axle, back stitching hammers 10 bottoms into shape and medullary ray equidistant parallel is processed with two round pin holes, in two pin holes in the way of running fit, one is equipped with the hole pin 16 of anterior circular cone point, size length, another is equipped with the short nail pin 17 of anterior tack, size, two hit pin rear portion all the pin cap being greater than pin hole, and making to hit pin can rearward movement under back stitching hammers 10 drives into shape, hit pin when turning to immediately below piston rod 9 axis, hit the bar shaped that pin cap is just positioned at piston rod 9 body lower convexity and hit hammer 18 part right ons, bar shaped is hit hammer 18 thickness and is hit pin cap quite, and when piston rod 9 moves forward, bar shaped is hit hammer 18 promotion and that root being positioned at right on can only be promoted to hit pin and moves forward, cylinder shape turn the heavy hole that thorax 11 rear portion is placed in air chamber 1 outer wall and processes centered by piston rod 9 main axis, Zhuan Tang 11 center is processed with circular hole, back stitching hammer 10 is placed in circular hole with running fit and can run along circular hole slide anteroposterior, turn the sliding wing groove 22 being processed with straight line on thorax 11 thorax body along axis, being fixed on the sliding wing 21 of bar shaped that back stitching hammers into shape on 10 hammer bodies is embedded in sliding wing groove 22, make back stitching hammer 10 and turn thorax 11 to relatively rotate, cylinder shape nail thorax 12 closely cooperates to be arranged on and turns thorax 11 front portion, nail thorax 12 thorax body is arranged in the semi-circular groove of corresponding size at rifle mouth 13 rear portion, nail thorax 12 is corresponding with two pin holes on back stitching hammer 10 below is processed with hole pin hole and nail pin groove, hole pin 16 and nail pin 17 are after back stitching hammer 10, correspondence is placed in hole pin 16 hole and nail pin groove respectively, and front portion is all the time in hole pin hole and nail pin groove when running before and after hole pin 16 and nail pin 17, nail thorax 12 front central processes a pin hole, after the anterior rifle mouth 13 of rifle mouth 13 upper half-round slot, wall is processed with pin hole equally by half slot medullary ray, pin connected nail thorax 12 and rifle mouth 13, rifle mouth 13 is installed, makes the pin hole on rifle mouth 13 be positioned to hit and beat on piston 4 main axis, be arranged on rifle mouth 13 and nail thorax 12 axis turning thorax 11 and compact siro spinning technology that air chamber 1 sinks between hole just with hit dozen piston 4 coincides, and can rotate around piston rod 9 main axis, rifle mouth 13 is anterior, and by hitting pin, to turn to the needle axis of hitting when piston rod 9 main axis just descends be that benchmark is processed one and gone out nail 23,The external diameter size of nail thorax 12 is of a size of benchmark setting by holding a dowel in nail pin groove, the excessively nail groove hole 24 that be processed with long strip shape corresponding with nail pin groove on the half slot of rifle mouth 13 rear portion, cartridge clip 15 was positioned at below nail groove hole 24, tenon nail upwards entered in nail groove hole 24 under the action of the spring, it is in nail pin groove rear portion when nail thorax 12 is followed closely pin 17, go up most in the nail pin groove that one piece of dowel upwards enters nail pin 17 front portion on nail thorax 12 when nail pin groove forwarded nail 24 position, groove hole to, the dowel below first piece of dowel is retrained owing to crossing nail groove hole 24, the dowel followed closely in pin groove is separated from tenon nail when following closely thorax 12 and rotate, in thorax 11 rear portion and support plate 14, turning device 8 is installed turning, turning device 8 hits after hitting dozen piston 4, drive piston rod 9, pin hammer, when hitting pin rearward movement, the back stitching hammer 10 turned in thorax 11 and nail thorax 12 and two thorax bodies of compact siro spinning technology can be made, hit pin and together rotate around piston rod 9 main axis thus make hole pin 16, dowel and nail pin 17 swing to out on nail 23 axis successively.

The two parts of above-mentioned dowel rifle combines and can complete: route controller 7 hits under controlling and plays piston 4 forward play, piston rod 9 drives back stitching hammer 10 to move forward, hammer 18 is hit in the bar shaped of piston rod 9 lower lobes, hit to beat and starting position is arranged in the hole pin 16 that right on goes out on nail 23 axis makes it go out forward rifle mouth 13 to squeeze into timber, then hit and hit after beating piston 4, piston rod 9 drives back stitching hammer 10 to move backward, pulled-out holes pin 16 and turning device 8 act under, make the back stitching hammer 10 turning thorax 11 and following closely in thorax 12 and two thorax bodies, hit pin together to rotate around piston rod 9 main axis, dowel and nail pin 17 is made to forward to out on nail 23 axis, hammer 18 right ons are hit in bar shaped, hit and play piston 4 forward play again, bar shaped is hit hammer 18 and is hit and play nail pin 17 and drive dowel to go out to go out nail 23 on rifle mouth 13, and the hole that hole pin 16 is got along timber, dowel is squeezed into timber, hit dozen piston 4 subsequently again to hit afterwards, drive back stitching hammer 10, nail pin 17 to move backward, under turning device 8 acts on, make to turn thorax 11 and the back stitching hammer 10 followed closely in thorax 12 and two thorax bodies, hit pin together around the revolution of piston rod 9 main axis, hole pin 16 is turned back to out on nail 23 axis.

Air chamber 1 is provided with handle 2 below, the high pressure gas passage being connected with high-pressure air source it is provided with in handle 2, on handle 2, isolated casting processing has a groove for installing route controller 7 with high pressure gas passage, the high pressure gas that route controller 7 can cut off, recover to balance in valve seat makes equilibrium valve action, realized by the action of sequential control equilibrium valve cylinder 3 hits beat piston 4 complete forward play �� after hit �� forward play �� after hit four actions.

Above-mentioned route controller 7 refers to can control each equilibrium valve action after trigger touches, and finally makes to hit and beats the device that piston 4 sequentially completes to hit motion before and after twice needed for beating: comprises a body, needle-valve, little cylinder, action spring, action bar, needle-valve press strip, being provided with two needle-valves in seat body, the high pressure gas just can cut off when the needle in two needle-valves is depressed with balance in gas circuit that valve seat is connected, causes the spool action backward of equilibrium valve, and two needle-valves are present on bodies to be arranged in parallel, needle-valve outside is provided with needle-valve press strip, needle-valve press strip is the L-shaped bar having one section of vertical elbow before cylindrical bars body, bar body is installed in present body groove along valve cavity axis, can slide up and down along groove, and unidirectional rotation, anterior elbow is above needle tail, face facing to needle tail is plane, raised up in the middle part of bar body small lugs, this projection has with press strip axes normal and the little inclined-plane that forms an angle, and bar tail is provided with the little spring that resets, action bar axis and two needle-valve press strips are arranged vertically, above needle-valve press strip, it is in bar groove, and can only move by transverse reciprocating, on action bar corresponding with needle-valve press strip ramp small lugs, there is the small lugs of four band respective ramp, little cylinder and is connected with action bar with action layout of spring on action bar long axis, under normality, little cylinder has high pressure gas, cylinder rod pushing action spring pulls open Chu Li, action bar enters standby position, in this process, action bar projection and needle-valve press strip upper protruding block inclined-plane are trailing movements, needle press strip projection rotates under action projection promotes, when action bar arrives standby position, two projections disengage, the little spring of reset at needle press strip rear portion makes needle press strip turn round, make projection upwards, when trigger action, in the needle-valve of trigger rear portion, needle is depressed, the little cylinder mesohigh gas being connected with trigger needle-valve gas circuit is blocked, action bar reversing motion under action spring effect, action bar, the little contact of incline plane of on needle press strip two, because at this moment needle press strip can not rotate, the component along axis that inclined-plane produces promotes needle press strip to move downward, the anterior elbow of needle press strip is to the needle pressed down in lower needle-valve, thus make equilibrium valve generation action, four little inclined-planes on action bar are arranged at interval in certain sequence, make control forward play equilibrium valve 5 and after hit equilibrium valve 6 needle-valve complete to complete successively to break, four actions of logical high pressure gas, make to hit dozen piston 4 order and complete to hit motion before and after twice needed for beating.

Above-mentioned turning device 8 be hit beat piston 4 rearward movement time, can make to turn thorax 11, nail thorax 12, back stitching hammer 10, nail pin 17 together at two fixed position reciprocating rotations, thus realize two and hit the device that pin is directed at out nail 23 axis successively respectively: it is included in the revolving sleeve 30 turning the band gear that thorax 11 rear portion is installed, it is enclosed within the torsion spring 31 turning the outer one end of thorax 11 and being fixed on thorax, turn the thorax 11 that can rotate on thorax 11 rotate and the master wheel 32 that is connected with torsion spring 31 the other end with being enclosed within, and the transition gear unit 33 being arranged in support plate 14;

Wherein, revolving sleeve 30 is thin-walled round bush, with turn thorax 11 two kinds of forms be installed, a kind of mode is that interior Kong Yuzhuan thorax 11 rear portion external diameter is suitable, being enclosed within and turn the thorax 11 rear portion thorax 11 that can rotate and rotate, the 2nd kind of mode is turn the processing of thorax 11 rear portion to hammer the big step hole of 10 external diameters into shape than back stitching, and revolving sleeve 30 is arranged in step hole, it is identical that revolving sleeve 30 internal diameter hammers 10 external diameters into shape with back stitching, and two kinds of installation modes require that the outer extensibility of the sliding wing all must ensure to contact with sliding wing groove 22 with helicoidal surface on revolving sleeve 30 at rear portion simultaneously, revolving sleeve 30 body is processed with the helicoidal surface in anterior two the different rotary directions intersected, this helicoidal surface vertically points to revolving sleeve 30 axis along the spiral-line on revolving sleeve 30 periphery, the continuous curve surface wide with wall thickness stayed between two spiral-linees on inside and outside wall after processing, remove the body on helicoidal surface top, two helicoidal surfaces making sense of rotation contrary intersect in revolving sleeve 30 front portion, triangular in shape, revolving sleeve 30 rear portion is processed with groove, at rifle body air chamber 1, outer and groove respective protrusions has small lugs, and when revolving sleeve 30 rotates, groove both ends of the surface can be stopped by projection in corresponding position, when two hit pin swing to the position being directed at out nail axis time, turning sliding wing groove 22 on thorax 11 is stop on two fixing locus, spacing by revolving sleeve 30 upper groove and projection, the anterior two helicoidal surface intersection points of revolving sleeve 30 are made to carry out back rotation only slight beyond the region between sliding wing groove 22 outer on sliding wing groove 22 locus, make that helicoidal surface front portion sliding wing groove 22 of alignment being between sliding wing groove 22 locus, the intersection point of helicoidal surface rear portion with sliding wing groove 22 locus is made by setting, become the stop of sliding wing rearward movement when hitting stopping after hitting dozen piston 4, slide like this and when the wing stops along helicoidal surface rearward movement, drive sliding wing groove 22 to turn on the 2nd locus, thus make to turn thorax 11 and turn to corresponding position, revolving sleeve 30 is delayed servo-actuated realized by following structure in the rotation turned on thorax 11, revolving sleeve 30 is closely provided with gear, revolving sleeve 30 front portion turns on thorax 11, it is set with the master wheel 32 that the thorax 11 that can rotate rotates, two gears engage with the transition gear unit 33 installed in support plate 14 simultaneously, revolving sleeve 30 is synchronous with master wheel 32 action, by setting each gear ratio, revolving sleeve 30 can be made to rotate angle, slightly larger than the corner turning thorax 11 and rotating between two fixed space positions, thorax 11 flexibly connects the torsion spring 31 that master wheel 32 turns on thorax 11 by being enclosed within turning, when the sliding wing enters helicoidal surface, revolving sleeve 30 limited pieces of restrictions can not be rotated to the direction of sliding wing groove 22 outer again, the sliding wing drives with regard to helicoidal motion and turns thorax 11 counter-rotation, turn thorax 11 relatively and revolving sleeve 30 and the master wheel 32 with revolving sleeve 30 synchronized links relatively rotate, at this moment torsion spring 31 twists and stores and turn thorax 11 with direction torsion, when the sliding wing departs from forward helicoidal surface with when hitting and play piston 4 forward play, torsion spring 31 torsion discharges, drive master wheel 32 thus drive revolving sleeve 30, do delayed follow rotation with turning thorax 11 turning direction just now, by spacing, another helicoidal surface is turned between sliding wing groove 22 liang of locus. when the sliding wing 21 of bar shaped with hit beat piston 4 after hit twice rearward movement time, enter different helicoidal surfaces respectively for twice, drive turn thorax 11, nail thorax 12, back stitching hammer 10, two hit pin and twice rotation past, multiple occur.

A complete nail stroke of beating is: handle 2 valve connects high pressure gas. high pressure gas enters main gas circuit, high pressure air cavity 26 and enters route controller 7 respectively by the main gas circuit of each needle-valve simultaneously and control gas circuit, two equilibrium valves control gas circuits, in route controller 7 small cylinder piston move ahead pulling action spring action bar to the left action bar enter band and hit position, now turning thorax 11 hollow needle 16 is positioned on nail 23 axis, sliding wing groove 22 is positioned at helicoidal surface rear portion, the two helicoidal surfaces point that crosses is on sliding another locus of wing groove 22, and torsion spring 31 is stored torsion by twisting. the lower trigger of pressure, trigger needle valve action, route controller 7 controls gas circuit mesohigh gas and is cut off, the medium and small cylinder mesohigh gas of route controller 7 disappears, action spring pulling action bar is to moving right, the press strip ramp that on bar, the first little inclined-plane of tooth controls on gas circuit needle-valve with forward play equilibrium valve 5 contacts, make the downward screw down valve pin of needle-valve press strip, forward play valve seat 29 mesohigh gas is cut off, move after forward play equilibrium valve 5, high pressure gas in high pressure air cavity 26 enters cylinder 3 rear portion by forward play equilibrium valve 5, promote piston, piston rod 9, back stitching hammer 10, the sliding wing moves forward, on piston rod 9, bar shaped is hit pin and is driven hole pin 16 to move ahead out nail gun mouth 13, when the sliding wing departs from helicoidal surface, torsion spring 31 discharges torsion and drives master wheel 32 gear unit and revolving sleeve 30 to rotate, make the sliding wing groove 22 of another helicoidal surface alignment, in route controller 7, on action bar, the first tooth departs from press strip inclined-plane, forward play valve seat 29 mesohigh gas recovers, forward play equilibrium valve 5 moves forward, and the high pressure gas entered in cylinder 3 by cylinder 3 rear portion is cut off, and the high pressure residual gas of cylinder 3 inside is in communication with the outside release by forward play equilibrium valve 5 simultaneously, action article continue to move to right the 3rd little inclined-plane of tooth with after hit the press strip that equilibrium valve 6 controls on gas circuit needle-valve and contact and make the downward screw down valve pin of needle-valve press strip, after hit valve seat 28 mesohigh gas be cut off, after hit and move after equilibrium valve 6, high pressure air cavity 26 mesohigh gas by after hit equilibrium valve 6 and enter from cylinder 3 front end, promote piston, piston rod 9, back stitching hammer 10, sliding wing rearward movement, back stitching hammer 10 drive hole pin 16 rearward movement simultaneously, when the sliding wing along sliding wing groove 22 move to rear portion enter helicoidal surface on revolving sleeve 30 time, back stitching hammer 10 is driven while rearward movement, turn thorax 11, nail thorax 12, hole pin 16, nail pin 17, rotate together with the dowel entered in nail pin groove, dowel and nail pin 17 is made to turn to out on nail 23 axis, when turning thorax 11 and rotate relative to revolving sleeve 30, torsion spring 31 occurs twisting to store torsion, in route controller 7, action bar continues to move to right, 3rd tooth departs from press strip inclined-plane, after hit valve seat 28 mesohigh gas recover, after hit on equilibrium valve 6 move, by cylinder 3 front portion enter in cylinder 3 high pressure gas be cut off, simultaneously the high pressure residual gas of cylinder 3 inside by after hit equilibrium valve 6 and be in communication with the outside release, action bar continues to move to right, the press strip ramp that 2nd tooth inclined-plane controls on gas circuit needle-valve with forward play equilibrium valve 5 contacts, make the downward screw down valve pin of needle-valve press strip, forward play valve seat 29 mesohigh gas is cut off, move after forward play equilibrium valve 5, high pressure gas in high pressure air cavity 26 enters cylinder 3 rear portion again by forward play equilibrium valve 5, promote piston, piston rod 9, back stitching hammer 10, the sliding wing moves forward, on current piston rod 9, bar shaped is hit pin and is driven nail pin 17 and anterior dowel thereof the nail gun mouth 13 that moves ahead out to be squeezed into by dowel along the hole that hole pin 16 was got just now, when the sliding wing departs from helicoidal surface, torsion spring 31 discharges torsion drive master wheel 32 gear unit and revolving sleeve 30 generation and turns thorax 11 and just now turned to identical following to turn, make the sliding wing groove 22 of another helicoidal surface alignment,Action bar continues to move to right, 2nd tooth ramp disengaging contacts with needle press strip, and forward play valve seat 29 mesohigh gas recovers, and forward play equilibrium valve 5 moves forward, the high pressure gas entered in cylinder 3 by cylinder 3 rear portion is cut off, and the high pressure residual gas of cylinder 3 inside is in communication with the outside release by forward play equilibrium valve 5 simultaneously, action article continue to move to right the 4th little inclined-plane of tooth with after hit the press strip that equilibrium valve 6 controls on gas circuit needle-valve and contact and make the downward screw down valve pin of needle-valve press strip, after hit valve seat 28 mesohigh gas be cut off, after hit and move after equilibrium valve 6, high pressure air cavity 26 mesohigh gas by after hit equilibrium valve 6 and enter from cylinder 3 front end, promote piston, piston rod 9, back stitching hammer 10, sliding wing rearward movement, nail pin 17 rearward movement of back stitching hammer 10 drive simultaneously, when the sliding wing along sliding wing groove 22 move to rear portion enter helicoidal surface on revolving sleeve 30 time, back stitching hammer 10 is driven while rearward movement, turn thorax 11, nail thorax 12, hole pin 16, nail pin 17 rotates together, hole pin 16 is made to return back to out on nail 23 axis, action article continues to move to right makes the press strip inclined-plane on the 4th little inclined-plane of tooth and needle-valve disengage, and action bar moves to right the stopping that putting in place, decontrol trigger enter original state wait next time hit beat.

Below the preferred embodiment of the present invention is described in detail. It is to be understood that the ordinary skill of this area just can make many modifications and variations according to the design of the present invention without the need to creative work. Therefore, the technical scheme that all technician in the art can be obtained by logical analysis, reasoning, or a limited experiment under this invention's idea on the basis of existing technology, all should by the determined protection domain of claim book.

Claims

1. a pneumatic dowel rifle, comprises power section and action part, it is characterised in that:

Described power section comprises the air chamber (1) of monoblock casting, it is positioned at the handle (2) of air chamber (1) bottom, the cylinder (3) being arranged in air chamber (1), it is positioned at hitting of cylinder (3) and beats piston (4), the forward play equilibrium valve (5) that control high pressure gas flow to and forward play valve seat (29) and after hit equilibrium valve (6) and after hit valve seat (28), and be arranged in the route controller (7) of handle (2);

Described operating member divides and comprises turning device (8), connect the piston rod (9) hitting and beating piston (4), it is arranged on back stitching hammer (10) of piston rod (9) front end, constraint back stitching hammer (10) and integral power path turn thorax (11) and follow closely thorax (12) and be positioned at follow closely thorax (12) front end rifle mouth (13), the support plate (14) being positioned at rifle mouth (13) lower section, and it is positioned at the cartridge clip (15) of support plate (14) lower section;

Described piston rod (9) through hit after being arranged on cylinder (3) front end and air chamber (1) front end equilibrium valve (6) and after hit valve seat (28) to extend to air chamber (1) outside, piston rod (9) can not rotate around its axis, described back stitching hammer (10) is movably arranged on the end that piston rod (9) is positioned at air chamber outside, and back stitching hammer (10) can be rotated around the axis of piston rod (3), back stitching hammer (10) runs through two end face, it is positioned at the lower section of piston rod (9) axis, and piston rod (9) axis equidistant parallel is provided with two round pin holes, described round pin hole is respectively arranged with hole pin (16) and nail pin (17), the front portion in described hole pin (16) is circular cone tip, the front portion of nail pin (17) is tack, and the length of hole pin (16) is greater than the length of nail pin (17), the end that described hole pin (16) and nail pin (17) are positioned at back stitching hammer (10) rear is all raised with one and hits pin cap, the diameter of the round pin hole that the described diameter hitting pin cap is greater than in back stitching hammer (10), the underface of described piston rod (9) is parallel with piston rod (9) to be fixedly installed a bar shaped and hits hammer (18), and the front end that hammer is hit in described bar shaped is positioned at the rear of back stitching hammer (10).

2. pneumatic dowel rifle according to claim 1, it is characterized in that: described piston rod (9) front portion line centered by main rod body axis is provided with step axle, step axle front end is symmetrically arranged with one pair of lug (19), described back stitching hammer (10) is for cylindrical, its center is provided with the lug grooves hole (20) adapted with lug (19) shape, size, the lug (19) of step axle front portion is through, after lug grooves hole (20), back stitching hammer (10) can rotate around step axle��

3. pneumatic dowel rifle according to claim 1, it is characterized in that: described in turn thorax (11) be cylinder-like structure, its rear portion is positioned at outer wall place, air chamber (1) front end, heavy hole centered by piston rod (9) axis, back stitching hammer (10) is arranged in the bore which turning thorax (11) and can move forward and backward along bore which, outside that described turning device (8) is arranged on the one end turning the close air chamber of thorax (11), the position turning thorax between (11) and support plate (14)��

4. pneumatic dowel rifle according to claim 1, it is characterized in that: the outside of described back stitching hammer (10) hammer body and hammer body are axially arranged with the sliding wing (21) of bar shaped in parallel, described turn the sliding wing groove (22) being processed with straight line on thorax (11) thorax body, the sliding wing (21) of bar shaped on back stitching hammer (10) hammer body is embedded in sliding wing groove (22), and back stitching hammer (10) can not be rotated relative to turning thorax (11)��

5. pneumatic dowel rifle according to claim 1, it is characterized in that: described nail thorax (12) is cylindrical-shaped structure, the rear portion of nail thorax (12) is closely connected in the front portion turning thorax (11), described rifle mouth (13) rear portion is provided with half slot, the insertion of nail thorax (12) front portion is arranged in the half slot at rifle mouth (13) rear portion, run through two end faces of nail thorax (12), and be provided with nail thorax (12) axis being parallel and to hammer the corresponding hole pin hole of (10) upper two nail with back stitching into shape and to follow closely pin groove, after described hole pin (16) and nail pin (17) hammer (10) into shape through back stitching, it is placed in hole pin hole and nail pin groove, described rifle mouth (13) lower front, runs through rifle mouth (13) and is provided with out nail (23), described in go out nail (23) the axis axis that hits hammer (18) with bar shaped overlap, the rear portion of described rifle mouth (13) is provided with a half slot, the size of described half slot is mated mutually with the external diameter size of nail thorax (12), position corresponding with the nail pin groove of nail thorax (12) on the groove body of described half slot is provided with long strip shape and crosses nail groove hole (24), cartridge clip (15) was positioned at lower section, nail groove hole (24), and the shape size crossing nail groove hole (24) is mated mutually with the shape size of tenon nail in cartridge clip (15)��

6. pneumatic dowel rifle according to claim 1, it is characterized in that: described cylinder (3) is horizontally set in air chamber (1), fixed connecting piece (25) vertically it is provided with between the outer side wall of cylinder (3) and the inner side-wall of air chamber (1), the air chamber (1) of fixed connecting piece (25) both sides keeps through, a high pressure air cavity (26) is formed between described cylinder (3) and air chamber (1), former and later two end faces of cylinder (3) are all arranged in high pressure air cavity (26), the sidewall of described air chamber (1) has been offered induction trunk (27), described induction trunk (27) makes the high-pressure gas circuit of high pressure air cavity (26) and handle (2) inside through, equilibrium valve (6) is hit after being provided with between the front end of described air chamber (1), air chamber (1) and cylinder (3), after hit equilibrium valve (6) by after hit the end that valve seat (28) is arranged on air chamber (1) front end, after hit equilibrium valve (6) the front end face of end face and cylinder (3) fit tightly and be connected, it is provided with forward play equilibrium valve (5) between the rear end of described air chamber (1), air chamber (1) and cylinder (3), forward play equilibrium valve (5) is arranged on the end of air chamber (1) rear end by forward play valve seat (29), and fits tightly between the end face of forward play equilibrium valve (5) and the aft end face of cylinder (3) and be connected��

7. pneumatic dowel rifle according to claim 1, it is characterised in that: having a groove in described handle (2), the groove of handle (2) and inside thereof is integrated casting, is provided with route controller (7) in this groove;

Described route controller (7) comprises the trigger being arranged on handle (2) front portion, it is arranged on the first control air valve at trigger rear, it is connected with the first control air valve by pipeline, be arranged in the groove of handle (2) little cylinder and piston, it is arranged on the action spring at little cylinder two ends, the action bar being fixedly connected with piston, corresponding with action bar it is provided with two needle-valves, one of them needle-valve is by gas circuit and forward play equilibrium valve (5), forward play valve seat (29) connects, another needle-valve by gas circuit and after hit equilibrium valve (6), after hit valve seat (28) connect��

8. pneumatic dowel rifle according to claim 1, it is characterised in that: described turning device (8) comprise be arranged on the band gear turned between thorax (11) rear portion with support plate (14) revolving sleeve (30), be enclosed within turn thorax (11) outer one end be fixed on turn on thorax (11) torsion spring (31), be enclosed within and turn the thorax (11) that rotates on thorax (11) and rotate and the master wheel (32) that is connected with torsion spring (31) the other end and the transition gear unit (33) being arranged in support plate (14); Revolving sleeve (30) rear portion is provided with groove, this groove correspondence position is provided with small lugs outward at air chamber (1).