CN104608087A

CN104608087A - One-hand pneumatic wrench with function of one-key positive and reverse rotation switching and self-locking function

Info

Publication number: CN104608087A
Application number: CN201510073201.9A
Authority: CN
Inventors: 陈吉雄
Original assignee: ZHANGZHOU NANFANG MACHINERY CO Ltd
Current assignee: ZHANGZHOU NANFANG MACHINERY CO Ltd
Priority date: 2015-02-12
Filing date: 2015-02-12
Publication date: 2015-05-13

Abstract

The invention relates to a one-hand pneumatic wrench with a function of one-key positive and reverse rotation switching and self-locking function. The one-hand pneumatic wrench comprises a housing, an impact component, a motor component, a rear cover, a trigger component, a positive and reverse rotation button, a speed adjusting button, a guide wheel component, an adjusting valve and the like. The impact component and the motor component are serially connected in order in a large inner hole of the housing and covered by the rear cover. The rear end face of the housing is provided with a positive rotation pneumatic cavity A and a reverse rotation pneumatic cavity A corresponding to a positive rotation pneumatic cavity B and a reverse rotation pneumatic cavity C arranged in the end face of the rear cover. The positive rotation pneumatic cavity B and the reverse rotation pneumatic cavity B in the end face of the rear cover correspond to a positive rotation pneumatic cavity C and a reverse rotation pneumatic cavity C arranged in the motor component. The trigger component is disposed in a mounting hole D of the housing. By pressing the trigger component, an intake jacking rod pushes open an intake valve of an air lock component to allow the wrench to run with intake; by pressing the positive and reverse button in a positive and reverse speed adjusting component, the running states of the guide wheel component are switched, the adjusting valve switches positive and reverse rotation intake of the motor component, and positive and reverse rotation of the wrench is achieved; by rotating the speed adjusting button, speed of the wrench is adjusted.

Description

There is a key and switch rotating and the one-handed performance pneumatic impact spanner of auto-lock function

Technical field

The present invention relates to pneumatic impact spanner field of tool, particularly a kind of have a key switching rotating and the one-handed performance pneumatic impact spanner of auto-lock function.

Background technology

The operation principle of pneumatic impact spanner be compressed air pass through to hold one's breath mechanism, speed adjusting gear, just enter cylinder against mechanism, promote blade rotor driven to rotate, thus make striking mechanism produce moment high-octane alternating shock load, because its moment of torsion exports large, safety in utilization is good, is widely used in the screw mounting or dismounting occasion such as assembling line, maintenance place.

Traditional pneumatic impact spanner is generally divided three classes: the first kind is directly realized by the axial-rotation of control valve, when spanner rotating switches, the necessary bimanualness of operating personnel, namely operating personnel one hold pneumatic impact spanner, and the knob of another hand finger rotation process control valve realizes the rotating switching of spanner.Equations of The Second Kind is directly realized by the axial linear movement of control valve, spanner housing is given prominence in this type of Zong You one end, pneumatic impact spanner control valve two ends, operating personnel are by pressing jag, make the axially-movable of spanner control valve realize rotating to switch, so it is two keyed that class spanner switches rotating function, but carefully analyze, because the structure restriction of this type of traditional, pneumatic spanner, there is a segment distance at the distance place of holding, two ends of control valve, the rotating switching of pneumatic impact spanner requires operating personnel to change and holds posture is just pressed into control valve jag by thumb or forefinger.3rd class is that two buttons by being positioned at spanner rear end indirectly promote control valve and make its axial-rotation realize rotating to switch, the rotating of this type of pneumatic impact spanner switch must change operating personnel equally hold posture, no longer superfluously here to tell.To sum up telling, traditional, pneumatic spanner functionally switches, and brings a lot of inconvenience when particularly rotating switches to operating personnel.

Therefore, traditional pneumatic impact spanner exist cannot one-handed performance, the defect that the operating personnel holding gesture operation all functions and cannot realize different handedness (left-handed operation or right-hand operated) all can use same spanner jointly cannot not be changed.

Summary of the invention

Technical problem to be solved by this invention is by each mechanism structure of Optimal improvements pneumatic impact spanner, realize a key and switch rotating and the one-handed performance function of self-locking, and the key that has of the operating personnel of different handedness equal energy one-handed performance all functions can be allowed to switch rotating and the one-handed performance pneumatic impact spanner of auto-lock function.

Of the present invention a kind ofly have a key and switch rotating the one-handed performance pneumatic impact spanner of auto-lock function comprises housing, strike group, groups of motors, bonnet, bonnet paper washer, assembly of holding one's breath, packing ring of holding one's breath, trigger group, hollow pins A, rotating button, hollow pins B, speed governing button, gear spring, steel ball, guide wheel A, guide wheel B, sealing ring A, control valve, back-moving spring A, valve pocket, solid pin, sealing ring B, hollow pins C, screw, spring washer, in the handle air admission hole of described housing, pressure one is held one's breath packing ring, and assembly of holding one's breath is by pipe joint locking in handle air admission hole, and nature is normally closed, described strike group, groups of motors are connected successively and are placed in the large endoporus of housing, and groups of motors, strike group are closed in housing by screw, spring washer by bonnet, and housing and bonnet centre are provided with bonnet paper washer and seal, housing rear end face is provided with air discharge duct A, rotates forward air drain A, reversion air drain A, back-moving spring A, resigning hole, described rotating forward air drain A, reversion air drain A, back-moving spring A and the rotating forward air drain B that bonnet end face is provided with, the air drain B that reverses, place back-moving spring A heavy stand hole A corresponding, bonnet end face rotates forward air drain B, reversion air drain B rotates forward air drain C with groups of motors again, the air drain C that reverses is corresponding, housing front is provided with trigger group installing hole D, trigger group is placed in installing hole D, trigger group rear end is provided with air inlet push rod, when pressing trigger squeeze group, air inlet push rod is pushed the intake valve of holding one's breath in assembly open and is realized pneumatic impact spanner air inlet running, when releasing trigger group, under the effect of the back-moving spring B in assembly of holding one's breath, intake valve and trigger group are recovered nature and are realized pneumatic impact spanner and shut down, be provided with just against regulating module installing hole and three speed governing gear grooves above described housing trigger group installing hole D, described valve pocket both sides are provided with and rotate forward air admission hole, rotating forward steam vent, reversion air admission hole, reversion steam vent and solid pin installing hole B, described guide wheel B cylindrical is alternately provided with long guide groove and short-range missile groove, and guide wheel B small end is provided with draw-in groove B, described guide wheel A cylindrical is provided with leads spin slot, and guide wheel A small end is provided with draw-in groove A, by the cooperation of draw-in groove A, draw-in groove B, makes guide wheel A and guide wheel B form guide wheel group, guide wheel group is placed in valve pocket endoporus, and solid pin to be inserted in the solid pin installing hole B of valve pocket both sides and is placed in guide wheel group cylindrical guide groove, pining down by solid pin, and guide wheel group can only make specific axially-movable and spinning motion under axial force effect, the large end of described control valve is provided with air drain A, air drain B, air drain C, large end end face is provided with boss for installing back-moving spring A, control valve small end is successively through guide wheel group endoporus, speed governing button irregularly-shaped hole be placed in rotating button blind hole, and it is one overall for rotating button and control valve being connected by hollow pins B, under rotating forward state, back-moving spring A props up control valve, guide wheel group, make the long guide groove lower dead center A of guide wheel B be locked in solid pin, now control valve is opened valve pocket and is rotated forward air admission hole and rotating forward steam vent, and closedown reversion air admission hole and reversion steam vent realize the positive rotating function of pneumatic impact spanner, when pressing rotating button, rotating button promotes guide wheel group, control valve overcomes back-moving spring A axially-movable, when guide wheel A in guide wheel group lead spin slot contact solid pin time, additional spinning motion makes the spin slot top dead centre of leading of guide wheel A be locked to solid pin by guide wheel group, now discharge rotating button, under the effect of back-moving spring A, rotating button, guide wheel group and control valve start the axially-movable that resets, until the short-range missile groove lower dead center B of guide wheel B is locked in solid pin in guide wheel group, now control valve cuts out valve pocket and rotates forward air admission hole and rotating forward steam vent, open reversion air admission hole and realize pneumatic impact spanner reversion switching with reversion steam vent, in like manner, again press rotating button, in guide wheel group, under the effect of solid pin and back-moving spring A, control valve recovers the rotating forward switching that rotating forward state realizes pneumatic impact spanner, described speed governing button cylindrical is provided with the gear hole of placing gear spring and steel ball, and speed governing button endoporus is provided with an irregularly-shaped hole, described rotating button small end cylindrical is provided with special-shaped slot equally and coordinates with speed governing button irregularly-shaped hole, rotating button rotation is driven by rotating speed governing button, thus drive control valve to rotate, when the steel ball on speed governing button is placed in certain speed governing gear groove of housing under the effect of gear spring, valve pocket rotates forward air admission hole or reversion air admission hole has certain aperture under the effect of control valve, rotates forward the air inflow of air admission hole or reversion air admission hole to realize the speed-regulating function of pneumatic impact spanner by controlling valve pocket.

Described housing rear end face is provided with air discharge duct A, and air discharge duct A is communicated with below large endoporus; Before housing air discharge duct A bores an exhaust inclined hole and housing, Founder is through against regulating module installing hole, housing handle steam vent; Housing air discharge duct A both sides is provided with and rotates forward air drain A, reversion air drain A, is provided with back-moving spring A resigning hole below air discharge duct A; Housing handle place is provided with handle air admission hole, handle air admission hole with just have brill one air inlet inclined hole through against the air chamber bottom regulating module installing hole; A fabrication hole through rotating forward air drain A bores, just against regulating module installing hole to reversion air drain A in hull outside place, lateral wall fabrication hole is provided with plug and holds one's breath, be communicated with and rotate forward air drain A and just become rotating forward pore against the fabrication hole of regulating module installing hole, be communicated with reversion air drain A and just become reversion pore against the fabrication hole of regulating module installing hole; Housing is just provided with hollow pins C installing hole A above regulating module installing hole leading portion; Housing is just provided with three speed governing gear grooves above regulating module installing hole front end; Housing is just provided with trigger group installing hole D and trigger group spacing hole below regulating module installing hole.

Described bonnet end face is provided with the heavy stand hole A rotating forward air drain B, reversion air drain B, air discharge duct B and place back-moving spring A; After assembling, bonnet rotates forward air drain B, reversion air drain B rotates forward air drain A respectively with housing, the air drain A that reverses rotates forward air drain C with groups of motors, the air drain C that reverses is communicated with, and be provided with the sealing of bonnet paper washer each other, bonnet air discharge duct B is communicated with housing air discharge duct A, and the heavy stand hole A that bonnet places back-moving spring A is corresponding with housing back-moving spring A resigning hole.

Described trigger group rear end is provided with air inlet push rod; Stopper slot A is provided with above trigger group; During assembling, trigger group is placed in housing trigger group installing hole D, and hollow pins A is installed in housing trigger group spacing hole and also passes trigger group stopper slot A, prevents trigger group in pneumatic impact spanner use procedure from departing from housing; When pressing trigger squeeze group, the intake valve of holding one's breath in assembly is pushed in the start immediately of air inlet push rod open, realize spanner air inlet running, when removal trigger group external force, because of under the effect of the back-moving spring B in assembly of holding one's breath, trigger group is promoted lower reset by intake valve, and intake valve recovers with packing ring of holding one's breath state of holding one's breath, and now spanner decommissions.

Described valve pocket both sides are provided with and rotate forward air admission hole, rotating forward steam vent, reversion air admission hole, reversion steam vent and solid pin installing hole B; Valve pocket cylindrical be provided with rotate forward steam vent, the steam vent that reverses is through air discharge duct C and three the grooving B installing sealing ring B; Be provided with stopper slot B above valve pocket, valve pocket front end endoporus is provided with the heavy stand hole B installing speed governing button; During assembling, valve pocket stopper slot B is corresponding with shell bores A, make rotating forward air admission hole, reversion air admission hole be communicated with the rotating forward pore of housing, the pore that reverses respectively, valve pocket air discharge duct C and housing are vented inclined hole, housing handle steam vent is communicated with, valve pocket cylindrical grooving B installs sealing ring B, for isolated inlet and outlet road, prevent mutual gas blowby.

What described guide wheel A cylindrical was provided with uniform arrangement leads spin slot, and leading bottom spin slot is top dead centre; Guide wheel A small end is provided with draw-in groove A, draw-in groove A with lead spin slot there is certain angle α; Guide wheel A center is provided with an endoporus A, this endoporus A and control valve small end cylindrical matched in clearance.

Described guide wheel B cylindrical is provided with long guide groove and short-range missile groove, long guide groove and the alternately uniform arrangement of short-range missile groove, and be lower dead center A bottom long guide groove, short-range missile trench bottom is lower dead center B; Guide wheel B small end is provided with draw-in groove B, and draw-in groove B and long guide groove, short-range missile groove have certain angle β; Guide wheel B center is provided with an endoporus B, this endoporus B and control valve small end cylindrical matched in clearance.During assembling, guide wheel A, guide wheel B coordinate composition guide wheel group by draw-in groove A, the draw-in groove B of end face, now lead spin slot and long guide groove, short-range missile groove have certain dislocation angle γ.

The large end of described control valve is provided with air drain A, air drain B, air drain C and installs the grooving A of sealing ring A, large end end face is provided with boss for installing back-moving spring A, small end is provided with the installing hole C of hollow pins B, and installing hole C and air drain A, air drain B, air drain C have certain angle δ.

Described rotating button small end cylindrical is provided with the installing hole D of special-shaped slot, hollow pins B, and special-shaped slot both sides are provided with rotating gear and indicate; Rotating button center is provided with the blind hole of a cooperation control valve small end.

Described speed governing button cylindrical is provided with anti-slip veins and places the gear hole of gear spring, steel ball, and speed governing button small end is provided with special-shaped stopper slot, and speed governing button endoporus is provided with an irregularly-shaped hole, and the large end end face of speed governing button is provided with rotating speed gear and indicates, during assembling, load gear spring and steel ball in speed governing button gear hole, and entirety is placed in valve pocket heavy stand hole B, the special-shaped slot of rotating button is placed in speed governing button irregularly-shaped hole, and back-moving spring A installed by the large end boss of control valve, and small end is through guide wheel B endoporus B, guide wheel A endoporus A enters in rotating button center blind hole, and hollow pins B is placed in rotating button installing hole D and control valve small end installing hole C, by rotating button, guide wheel A, guide wheel B and control valve connect for can together with make the entirety of axially-movable, solid pin is placed in valve pocket both sides installing hole B, finally will by rotating button, hollow pins B, speed governing button, gear spring, steel ball, guide wheel A, guide wheel B, sealing ring A, control valve, back-moving spring A, valve pocket, solid pin, what sealing ring B was combined into is just installed on housing just against in regulating module installing hole against regulating module, speed governing button abnormity stopper slot and valve pocket stopper slot B, housing hollow pins C installing hole A is corresponding, and hollow pins C is installed in shell bores A and valve pocket and speed governing button cannot be blown out by compressed air, external force rotates speed governing button can make steel ball under the effect of gear spring, be locked to certain speed governing gear groove of housing, and the positive and negative maximum anglec of rotation of speed governing button is limited by special-shaped stopper slot and hollow pins C, prevents speed governing button from rotating through shelves.

Here of the present inventionly has a key and switch rotating the explanation of the one-handed performance pneumatic impact spanner rotating switching principle of auto-lock function:

1, state is rotated forward, under back-moving spring A effect, guide wheel group is pushed down in control valve small end shaft shoulder face, make the long guide groove lower dead center A of guide wheel B be locked in solid pin, now control valve air drain A rotates forward air admission hole with valve pocket, housing air chamber is communicated with, air drain B and valve pocket reverse air admission hole, rotate forward steam vent, air discharge duct C is communicated with, reverse steam vent, air discharge duct C of air drain C and valve pocket is communicated with, now, be just in rotating forward duty against regulating module, pneumatic impact spanner air inlet will rotate forward work;

2, inverted status, when pressing rotating button, rotating button promotes guide wheel group, control valve overcomes back-moving spring A and does axially-movable to spanner bonnet direction, when guide wheel A in guide wheel group lead spin slot contact solid pin time, an additional spinning motion makes the spin slot top dead centre of leading of guide wheel A be locked to solid pin by guide wheel group, now discharge rotating button, under the effect of back-moving spring A, rotating button, guide wheel group and control valve start extreme direction before spanner and do axially-movable, when the short-range missile groove contact solid pin of guide wheel B, guide wheel group is by an additional spinning motion, the short-range missile groove lower dead center B of guide wheel B is made to be locked in solid pin, now control valve air drain B and valve pocket reverse air admission hole, housing air chamber is communicated with, air drain C and valve pocket rotate forward air admission hole, reversion steam vent, air discharge duct C is communicated with, now just be in reversion duty against regulating module, pneumatic impact spanner air inlet is by the work of reversing,

3, recover rotating forward state, when again pressing rotating button, rotating button promotes guide wheel group, control valve overcomes back-moving spring A and does axially-movable to spanner bonnet direction, when guide wheel A in guide wheel group lead spin slot contact solid pin time, an additional spinning motion makes the spin slot top dead centre of leading of guide wheel A be locked to solid pin by guide wheel group, now discharge rotating button, under the effect of back-moving spring A, rotating button, guide wheel group and control valve start extreme direction before spanner and do axially-movable, when the long guide groove contact solid pin of guide wheel B, guide wheel group is by an additional spinning motion, the long guide groove lower dead center A of guide wheel B is made to be locked in solid pin, now the relative position of control valve and valve pocket recovers to rotate forward duty, pneumatic impact spanner air inlet will rotate forward work,

Because control valve installing hole C and air drain A, air drain B, air drain C have certain angled relationships, if axial for control valve rotation 180 ° is connected with rotating button again during assembling, then the positive-negative rotation state of pneumatic impact spanner will be contrary with above-mentioned situation, all set forth with above-mentioned situation herein---namely rotate forward state, solid pin is locked in lower dead center A, switch to inverted status, solid pin is locked in lower dead center B.

Here of the present inventionly has a key and switch rotating the explanation of the one-handed performance pneumatic impact spanner speed control principle of auto-lock function:

When external force rotates speed governing button, speed governing button irregularly-shaped hole drives the special-shaped slot of rotating button to make rotating button rotation, thus drive control valve to rotate, when steel ball is locked to certain speed governing gear groove of housing under the effect of gear spring, valve pocket rotates forward air admission hole, reversion air admission hole is conditioned valve air drain A respectively, air drain B opens certain aperture, rotate forward air admission hole by valve pocket, the aperture of reversion air admission hole controls the air inflow of pneumatic impact spanner groups of motors, thus control rotating speed.

Here be of the present invention have one key switch rotating and the one-handed performance pneumatic impact spanner of auto-lock function work time gas flowing explanation:

1, intake process, after pressing trigger group, intake valve is open, compressed air enters in housing air chamber by assembly of holding one's breath, packing ring of holding one's breath, air inlet inclined hole, by control valve air drain A, rotate forward air admission hole by way of valve pocket, housing rotates forward pore and rotates forward air drain A to housing, rotate forward air drain C enter groups of motors through bonnet paper washer, bonnet rotating forward air drain B, groups of motors again, make groups of motors drive the realization of strike group to rotate clockwise;

2, exhaust process is divided into two parts:

1. portion is discharged from groups of motors steam vent, enters housing just against in regulating module installing hole, pile warp valve pocket air discharge duct C, enter housing handle steam vent and discharge extraneous through housing air discharge duct A, housing exhaust inclined hole;

2. all the other waste gas are discharged from groups of motors reversion air drain C, enter bonnet reversion air drain B, housing reversion air drain A by bonnet paper washer, housing reversion pore to valve pocket reverses air admission hole, rotate forward steam vent, valve pocket air discharge duct C through control valve air drain B, valve pocket, enter housing handle steam vent and discharge extraneous; Compressed air continues to flow through above-mentioned path, can realize the work of spanner continuous rotation, as switched reversion work, only need be switched just against the duty of regulating module by pressing rotating button.

Of the present invention have a key switching rotating and the good effect of the one-handed performance pneumatic impact spanner of auto-lock function:

1, this pneumatic impact spanner is by each mechanism structure of Optimal improvements, and trigger group, speed governing are just optimized layout against mechanism, realizes operating personnel and does not change when holding gesture, the start-stop of one-hand operation spanner, speed governing, just reverses the function of switching;

2, this pneumatic impact spanner is just reversing switching mechanism and is abandoning traditional rotary, two keyed, and adopt and can the one-touch switching of self-locking state just reverse, the operating personnel realizing different handedness all can use same spanner jointly;

3, this pneumatic impact spanner is by the Optimal improvements to each mechanism, make air passage structure more compact, thus compressed air reduces in the energy loss of spanner internal transmission, economize energy more.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.

Fig. 1 is decomposition texture schematic diagram of the present invention

Fig. 2 is decomposition texture schematic diagram of the present invention

Fig. 3 is the rearview of housing

Fig. 4 is the A-A sectional view of housing

Fig. 5 is the B-B sectional view of housing

Fig. 6 is exploded structural representation of the present invention

Fig. 7 is exploded structural representation of the present invention

Fig. 8 is the structural representation of trigger group

Fig. 9 is the operating position sectional view of trigger group

Figure 10 is the structural representation of valve pocket

Figure 11 is the structural representation of valve pocket

Figure 12 is the internal view of valve pocket

Figure 13 is the operating position structural representation of valve pocket

Figure 14 is the operating position A-A sectional view of valve pocket

Figure 15 is the structural representation of guide wheel A

Figure 16 is the front view of guide wheel A

Figure 17 is the structural representation of guide wheel B

Figure 18 is the front view of guide wheel B

Figure 19 is the structural representation of guide wheel group

Figure 20 is the structural representation of control valve

Figure 21 is the A-A sectional view of control valve

Figure 22 is the structural representation of rotating button

Figure 23 is the structural representation of rotating button

Figure 24 is the structural representation of speed governing button

Figure 25 is the A-A sectional view of speed governing button

Figure 26 is just against the structural representation of regulating module

Figure 27 is just against the A-A sectional view of regulating module

Figure 28 is the operating position B-B sectional view of speed governing button

Figure 29 is the operating position C-C sectional view of speed governing button

Figure 30 is just against the rotating forward working state structure schematic diagram of regulating module

Figure 31 is just against the rotating forward working state structure schematic diagram of regulating module

Figure 32 is just against the rotating handoff procedure structural representation of regulating module

Figure 33 is just against the rotating handoff procedure structural representation of regulating module

Figure 34 is just against the rotating handoff procedure structural representation of regulating module

Figure 35 is just against the reversion working state structure schematic diagram of regulating module

Figure 36 is just against the reversion working state structure schematic diagram of regulating module

Figure 37 is the gas flow schematic diagram rotating forward intake process

Figure 38 is the portion flowing schematic diagram rotating forward exhaust process

Figure 39 is all the other the exhaust-gas flow schematic diagrames rotating forward exhaust process

Diagram, hollow pin 1 positive &negative button 2 3 4 gear speed control knob spring 5 steel ball 6 B wheel A 7 idler pulley B 8 seal A regulating valve of 9 10 11 valve return spring A to 12 solid pin 13 sealing ring B 14 pull unit 14-1 intake 15 C16 hollow hollow pin ejector pin A 17 18 her breath breath washer component inlet valve 18 18-1-2 reset spring 18-3 B shell pipe joint 19 20 hit 21 motor group 22 back cover paper pad 23 back cover 24 25 spring washer screw hole and exhaust slot is A 28 turned 26 ouchi gas tank A 29 inverted trough A 30 seat holes 31 air chamber inlet hole 32 33 handle into the hole34 35 installation handle vent hole spacing hole D36 pull unit 37 are inverse control component mounting holes and mounting holes A39 speed gear groove 40 41 process exhaust hole hole forward porosity inversion of porosity in 44 43 inversion 42 46 exhaust gas tank B 45 sink or hole A slot B47 forward gas tank 48 forward B gas tank 49 reverse gas tank C 50 C limit slot A51 are turned into the pores of 52 53 forward reverse air inlet vent inversion of 54 55 mounting holes B 56 exhaust vent groove of 59 57 grooving 58 limit slot B B C sink hole B60 guide screw groove 61 check points on 62 card slot hole within A 63 A 64 65 short guide groove guide 65 check points under A 67 next check point B 68 card slot B 69 inner hole 70 idler pulley group B 70 gas tank A gas tank 72 B 73 C 74 grooving A gas tank 74 76 small convex side hole installed 77 hole C 78 D 79 blind hole 80 abnormity slot 81 positive &negative gear mark 82 antiskid lines 83 gear hole 84 alien limit slot 85 profile hole 86 speed gear mark 87 88 vent plug

Detailed description of the invention

As shown in Figures 1 to 9, the present invention realizes as follows: of the present invention have a key and switch rotating the one-handed performance pneumatic impact spanner of auto-lock function comprises housing (16), strike group (17), groups of motors (18), bonnet (20), bonnet paper washer (19), to hold one's breath assembly (24), to hold one's breath packing ring (23), just reversing button (15), air inlet push rod (13), flow speed control valve (11), just reversing valve (7), speed governing knob (4), trigger (1), gear spring A (6), steel ball A (5), sealing ring A (10), hollow pins A (2), gear spring B (8), steel ball B (9), sealing ring B (12), hollow pins B (14), screw (3), screw (22), spring washer (21), in the handle air admission hole (40) of described housing (16), pressure one is held one's breath packing ring (23), assembly (24) of holding one's breath lock onto in handle air admission hole (40) by pipe joint (24-3), and nature is normally closed, described strike group (17), groups of motors (18) are connected successively and are placed in the large endoporus (37) of housing (16), groups of motors (18), strike group (17) are closed in housing (16) by screw (22), spring washer (21) by bonnet (20), and housing (16) is provided with bonnet paper washer (19) with bonnet (20) centre and seals, housing (16) rear end face is provided with air discharge duct A (25), rotates forward air drain A (26), reversion air drain A (27) rotates forward air drain B (28) with on bonnet (20) end face, the air drain B (29) that reverses is corresponding, bonnet (20) end face rotates forward air drain B (28), reversion air drain B (29) rotates forward air drain C (30) with groups of motors (18) again, the air drain C (31) that reverses is corresponding, housing (16) front is provided with just against regulating module installing hole (32), is just provided with a long slot bore (33) against regulating module installing hole (32) top, as shown in Figure 14 to Figure 21, the just reverse button (15) that centre is provided with a draw-in groove (34) is positioned in housing (16) long slot bore (33), reverse button (15) by pressing positive pressure, draw-in groove (34) is stirred and is just reversed the just reverse switching that valve (7) realizes spanner, just reverse valve (7) cylindrical and be provided with radial hole A (35), flow speed control valve (11) cylindrical is provided with three radial hole B (36) not of uniform size, flow speed control valve (11) penetrates and just reverses valve (7) endoporus, flow speed control valve (11) traversing through end is inserted in speed governing knob (4), make just to reverse valve (7) radial hole A (35) by rotation speed governing knob (4) and produce dislocation with flow speed control valve (11) radial hole B (36), thus control the speed governing that throughput realizes spanner, air inlet push rod (13) penetrates in flow speed control valve (11), the traversing through end of air inlet push rod (13) is inserted in trigger endoporus (73), by making air inlet push rod (13) promote to hold one's breath assembly (24) by trigger squeeze (1), thus realize the air inlet running of spanner.

As shown in Figures 3 to 8, described housing (16) rear end face is provided with air discharge duct A (25), and air discharge duct A (25) is communicated with large endoporus (37) below; It is through against regulating module installing hole (32), housing (16) handle place steam vent (39) with housing (16) front Founder that housing (16) air discharge duct A (25) bores exhaust inclined hole (38); Housing (16) air discharge duct A (25) both sides is provided with and rotates forward air drain A (26), reversion air drain A (27), after assembling, this air drain is communicated with the rotating forward air drain B (28) on bonnet (20) end face, the air drain B (29) that reverses respectively; Housing (16) handle place is provided with air admission hole (40), and air admission hole (40) is with just through against regulating module installing hole (32) bottom; Housing (16) is just being provided with and is rotating forward inclined hole (41), reversion inclined hole (42) in regulating module installing hole (32), rotate forward inclined hole (41) through to rotating forward air drain A (26) outside housing (16) handle, reversion inclined hole (42) is in like manner through to reversion air drain A (27), and handle side wall rotates forward fabrication hole (43), reversion fabrication hole (44) is provided with plug (45) and holds one's breath; Housing (16) is just provided with an orthogonal through long slot bore (33) against regulating module installing hole (32) top, be provided with a stopper slot A (46) above installing hole (32) aperture, below installing hole (32) aperture, be provided with two V-type grooves (47) and an orthogonal through spacing hole (48).

As shown in Figure 8, Figure 9, described bonnet (20) end face is provided with and rotates forward air drain B (28), reversion air drain B (29), air discharge duct B (49); After assembling, bonnet (20) rotates forward air drain B (28), reversion air drain B (29) rotates forward air drain A (26) with housing (16) respectively, the air drain A (27) that reverses rotates forward air drain C (30) with groups of motors (18), the air drain C (31) that reverses is communicated with, and is provided with bonnet paper washer (19) sealing each other.

As shown in Figure 10 to Figure 15, described valve (7) axle center of just reversing is provided with inner bore of step A (50), inner bore of step B (51), endoporus A (52); Just reversing valve (7) cylindrical be provided with radial hole A (35), air discharge duct C (53), stopper slot B (54), just against gear hole (55) and triangle boss (56); Just reverse valve (7) front end and be provided with speed governing gear hole (57); Just reversing valve (7) and be loaded on housing (16) just against in regulating module installing hole (32), housing (16) spacing hole (48) is squeezed into hollow pins B (14) and is made just to reverse valve (7) and can not be blown out housing (16) by compressed air; Gear spring B (8), steel ball B (9) are positioned over just against in gear hole (55), coordinate with housing (16) V-type groove (47), can precisely control just to reverse gear; Just reversing valve (7) triangle boss (56) and be positioned at housing (16) stopper slot A (46), preventing from just reversing valve (7) adjusted shelves; Just reversing in valve (7) front end speed governing gear hole (57) and placing gear spring A (6) and steel ball A (5), coordinate with speed governing knob (4) end face heavy stand hole B (58), can precisely control speed governing gear; When just reverse valve (7) radial hole A (35) and housing (16) reverse inclined hole (42) or rotate forward inclined hole (41) be communicated with time, housing (16) rotates forward inclined hole (41) or reversion inclined hole (42) and just reverses valve (7) air discharge duct C (53) and be communicated with.

As shown in Figure 14, Figure 15, the described button (15) that just reversing is strip, is just reversing button (15) middle, side and is being provided with a draw-in groove (34), just reversing button (15) is positioned in housing (16) long slot bore (33), middle draw-in groove (34) with just reverse valve (7) triangle boss (56) and coordinate, reverse button (15) middle draw-in groove (34) is stirred just reverse valve (7) triangle boss (56) by pressing positive pressure, thus make just to reverse valve (7) generation rotation, when just snapping in housing (16) V-type groove (47) against the steel ball B (9) in gear hole (55) under the effect of gear spring B (8), just reversing valve (7) cylindrical radial hole A (35) just to reverse with housing (16) inclined hole (42) or rotate forward inclined hole (41) and be communicated with, thus the just reverse realizing spanner switches.

As shown in Figure 16 to Figure 19, described flow speed control valve (11) axle center is provided with inner bore of step C (59), endoporus B (60); Flow speed control valve (11) cylindrical is divided into three sections, and segment cylindrical (62) is provided with heavy stand hole A (61), and stage casing cylindrical (63) is provided with three radial hole B (36) not of uniform size; Flow speed control valve (11) penetrates and just reverses valve (7) endoporus A (52), its large section of cylindrical (64) is locked to just reverses valve (7) inner bore of step A (52), prevent flow speed control valve (11) from being blown out by Compressed Gas, its segment cylindrical (62) is equipped with sealing ring A (10) and can be sealed and matched with just reversing valve (7) inner bore of step B (60).

As shown in Figure 19 to Figure 21, described speed governing knob (4) cylindrical is provided with anti-slip veins (65) and radial screw (66), one end face is provided with three heavy stand holes B (58), and the other end is provided with gear and indicates (67); Speed governing knob (4) endoporus coordinates with flow speed control valve (11) traversing through end, screw (3) to screw in outer circle diameter to holding out against flow speed control valve (11) heavy stand hole A (61) in screw (66), make speed governing knob (4) become as a whole with flow speed control valve (11), now three heavy stand holes B (58) and flow speed control valve (11) cylindrical three radial hole B (36) of speed governing knob (4) end face form an angle relation; Rotate by stirring speed governing knob (4), flow speed control valve (11) is driven and rotates together, when just reversing the steel ball A (5) in valve (7) front end speed governing gear hole (57) and snap in speed governing knob end face heavy stand hole B (58) under gear spring A (6) effect, flow speed control valve (11) the cylindrical radial hole B (36) corresponding with speed governing knob (4) heavy stand hole B (58) just with just reverse valve (7) radial hole A (35) and be communicated with, thus control the speed governing that throughput realizes spanner.

As shown in Figure 22 to Figure 26, described air inlet push rod (13) cylindrical is divided into two sections, little cylindrical (68) is provided with seal groove, and (70 as shown in Fig. 1 to Figure 36, the present invention realizes as follows: of the present inventionly a kind ofly adopt one-touch switching rotating function and the one-hand operation pneumatic impact spanner of self-locking comprises housing (19), strike group (20), groups of motors (21), bonnet (23), bonnet paper washer (22), to hold one's breath assembly (18), to hold one's breath packing ring (17), trigger group (14), hollow pins A (16), rotating button (1), hollow pins B (2), speed governing button (3), gear spring (4), steel ball (5), guide wheel A (6), guide wheel B (7), sealing ring A (8), control valve (9), back-moving spring A (10), valve pocket (11), solid pin (12), sealing ring B (13), hollow pins C (15), screw (25), spring washer (24), in the handle air admission hole (33) of described housing (19), pressure one is held one's breath packing ring (17), assembly (18) of holding one's breath lock onto in handle air admission hole (33) by pipe joint (18-3), and nature is normally closed, described strike group (20), groups of motors (21) are connected successively and are placed in the large endoporus (26) of housing (19), groups of motors (21), strike group (20) are closed in housing (19) by screw (25), spring washer (24) by bonnet (23), and housing (19) is provided with bonnet paper washer (22) with bonnet (23) centre and seals, housing (19) rear end face is provided with air discharge duct A (27), rotates forward air drain A (28), reversion air drain A (29), back-moving spring A (10) resigning hole (30) rotates forward air drain B (47) with on bonnet (23) end face, the air drain B (44) that reverses, to place back-moving spring A (10) heavy stand hole A (45) corresponding, bonnet (23) end face rotates forward air drain B (47), reversion air drain B (44) rotates forward air drain C (48) with groups of motors (21) again, the air drain C (49) that reverses is corresponding, housing (19) front is provided with trigger group (14) installing hole D (35), trigger group (14) is placed in installing hole (35), when pressing trigger squeeze group (14), air inlet push rod (14-1) in trigger group (14) intake valve (18-1) pushed open in assembly of holding one's breath (18) realizes pneumatic impact spanner air inlet running, when releasing trigger group (14), under the effect of the middle back-moving spring B (18-2) of assembly of holding one's breath (18), intake valve (18-1) and trigger group (14) recovery nature realize pneumatic impact spanner and shut down, described housing (19) trigger group (14) installing hole D (35) top is provided with just against regulating module installing hole (37) and three speed governing gear grooves (39), described valve pocket (11) both sides are provided with and rotate forward air admission hole (51), rotating forward steam vent (53), reversion air admission hole (52), reversion steam vent (54) and solid pin (12) installing hole B (55), described guide wheel B (7) cylindrical is alternately provided with long guide groove (64) and short-range missile groove (65), and guide wheel B (7) small end is provided with draw-in groove B (68), described guide wheel A (6) cylindrical is provided with leads spin slot (60), guide wheel A (6) small end is provided with draw-in groove A (62), by the cooperation of draw-in groove A (62), draw-in groove B (68), guide wheel A (6) and guide wheel B (7) is made to form guide wheel group (70), guide wheel group (70) is placed in valve pocket (11) endoporus, solid pin (12) to be inserted in valve pocket (11) both sides solid pin (12) installing hole B (55) and is placed in guide wheel group (70) cylindrical guide groove, by pining down of solid pin (12), guide wheel group (70) can only make specific axially-movable and spinning motion under axial force effect, described control valve (9) greatly end is provided with air drain A (71), air drain B (72), air drain C (73), large end end face is provided with boss (75) for installing back-moving spring A (10), control valve (9) small end (76) is successively through guide wheel group (70) endoporus, speed governing button (3) irregularly-shaped hole (85) be placed in rotating button (1) blind hole (79), and rotating button (1) and control valve (9) being connected by hollow pins B (2) is an entirety, under rotating forward state, back-moving spring A (10) props up control valve (9), guide wheel group (70), guide wheel B (7) long guide groove (64) lower dead center A (66) is made to be locked in solid pin (12), now control valve (9) is opened valve pocket (11) and is rotated forward air admission hole (51) and rotating forward steam vent (53), and closedown reversion air admission hole (52) and reversion steam vent (54) realize the positive rotating function of pneumatic impact spanner, when pressing rotating button (1), rotating button (1) promotes guide wheel group (70), control valve (9) overcomes back-moving spring A (10) axially-movable, in the guide wheel group (70) guide wheel A (6) lead spin slot (60) contact solid pin (12) time, additional spinning motion makes spin slot (60) top dead centre (61) of leading of guide wheel A (6) be locked to solid pin (12) by guide wheel group (70), now discharge rotating button (1), under the effect of back-moving spring A (10), rotating button (1), guide wheel group (70) and control valve (9) start the axially-movable that resets, until short-range missile groove (65) the lower dead center B (67) of guide wheel B (7) is locked in solid pin (12) in guide wheel group (70), now control valve (9) cuts out valve pocket (11) and rotates forward air admission hole (51) and rotating forward steam vent (53), open reversion air admission hole (52) and reversion steam vent (54) realize pneumatic impact spanner reversion switching, in like manner, again press rotating button (1), in guide wheel group (70), under the effect of solid pin (12) and back-moving spring A (10), control valve (9) recovers the rotating forward switching that rotating forward state realizes pneumatic impact spanner, described speed governing button (3) cylindrical is provided with the gear hole (83) of placing gear spring (4) and steel ball (5), and speed governing button (3) endoporus is provided with an irregularly-shaped hole (85), described rotating button (1) small end cylindrical is provided with special-shaped slot (80) equally and coordinates with speed governing button (3) irregularly-shaped hole (85), rotating button (1) is driven to rotate by rotating speed governing button (3), thus drive control valve (9) to rotate, when the steel ball (5) on speed governing button (3) is placed in certain speed governing gear groove (39) of housing (19) under the effect of gear spring (4), valve pocket (11) rotates forward air admission hole (51) or reversion air admission hole (52) has certain aperture under the effect of control valve (9), the air inflow of air admission hole (51) or reversion air admission hole (52) is rotated forward to realize the speed-regulating function of pneumatic impact spanner by controlling valve pocket (11).

As shown in Figures 3 to 5, described housing (19) rear end face is provided with air discharge duct A (27), and air discharge duct A (27) is communicated with large endoporus (26) below; It is through against regulating module installing hole (37), housing (19) handle steam vent (34) with housing (19) front Founder that housing (19) air discharge duct A (27) bores exhaust inclined hole (40); Housing air discharge duct A (27) both sides is provided with and rotates forward air drain A (28), reversion air drain A (29), and air discharge duct A (27) below is provided with back-moving spring A (10) resigning hole (30); Housing (19) handle place is provided with handle air admission hole (33), and handle air admission hole (33) has brill one air inlet inclined hole (32) through with the air chamber (31) just bottom regulating module installing hole (37); A fabrication hole (41) through rotating forward air drain A (28) is bored, just against regulating module installing hole (37) to reversion air drain A (29) in housing (19) outside, lateral wall fabrication hole (41) is provided with plug (87) and holds one's breath, be communicated with and rotate forward air drain A (28) with just becoming against the fabrication hole (41) of regulating module installing hole (37) and rotates forward pore (42), be communicated with reversion air drain A (29) and just become against the fabrication hole (41) of regulating module installing hole (37) pore (43) that reverses; Housing (19) is just provided with hollow pins C (15) installing hole A (38) above regulating module installing hole (37) leading portion; Housing (19) is just provided with three speed governing gear grooves (39) above regulating module installing hole (37) front end; Housing (19) is just provided with trigger group (14) installing hole D (35) and trigger group spacing hole (36) against regulating module installing hole (37) below.

As shown in Figure 6, Figure 7, described bonnet (23) end face is provided with heavy stand hole A (45) rotating forward air drain B (47), reversion air drain B (44), air discharge duct B (46) and place back-moving spring A (10), after assembling, bonnet (23) rotates forward air drain B (47), reversion air drain B (44) rotates forward air drain A (28) with housing (19) respectively, reversion air drain A (29) and groups of motors (21) rotate forward air drain C (48), reversion air drain C (49) is communicated with, and be provided with bonnet paper washer (22) sealing each other, bonnet (23) air discharge duct B (46) is communicated with housing (19) air discharge duct A (27), heavy stand hole A (45) that bonnet (23) places back-moving spring A (10) is corresponding with housing (19) back-moving spring A (10) resigning hole (30).

As shown in Figure 8, Figure 9, described trigger group (14) rear end is provided with air inlet push rod (14-1); Trigger group (14) top is provided with stopper slot A (50); During assembling, trigger group (14) is placed in housing (19) trigger group (14) installing hole D (35), hollow pins A (16) is installed in housing (19) trigger group spacing hole (36) and also passes trigger group (14) stopper slot A (50), prevents trigger group (14) in pneumatic impact spanner use procedure from departing from housing (19); When pressing trigger squeeze group (14), the intake valve (18-1) in assembly of holding one's breath (18) is pushed in air inlet push rod (14-1) start immediately open, realize spanner air inlet running, when removal trigger group (14) external force, because of under the effect of the middle back-moving spring B (18-2) of assembly of holding one's breath (18), trigger group (14) is promoted lower reset by intake valve (18-1), intake valve (18-1) recovers with packing ring (17) of holding one's breath state of holding one's breath, and now spanner decommissions.

As shown in Figure 10, Figure 14, described valve pocket (11) both sides are provided with and rotate forward air admission hole (51), rotating forward steam vent (53), reversion air admission hole (52), reversion steam vent (54) and solid pin (12) installing hole B (55); Valve pocket (11) cylindrical is provided with and the grooving B (57) rotating forward steam vent (53), air discharge duct C (56) that the steam vent (54) that reverses is through and three install sealing ring B (13); Valve pocket (11) top is provided with stopper slot B (58), and valve pocket (11) front end endoporus is provided with heavy stand hole B (59) of installing speed governing button (3); During assembling, valve pocket (11) stopper slot B (58) is corresponding with housing (19) installing hole A (38), make rotating forward air admission hole (51), reversion air admission hole (52) be communicated with the rotating forward pore (42) of housing (19), the pore (43) that reverses respectively, valve pocket (11) air discharge duct C (56) is vented inclined hole (40) with housing (19), housing (19) handle steam vent (34) is communicated with, sealing ring B (13) installed by valve pocket (11) cylindrical grooving B (57), for isolated inlet and outlet road, prevent mutual gas blowby.

As shown in Fig. 1, Figure 15, Figure 16, what described guide wheel A (6) cylindrical was provided with uniform arrangement leads spin slot (60), and leading spin slot (60) bottom is top dead centre (61); Guide wheel A (6) small end is provided with draw-in groove A (62), draw-in groove A (62) with lead spin slot (60) there is certain angle α; Guide wheel A (6) center is provided with an endoporus A (63), this endoporus A (63) and control valve (9) small end (76) cylindrical matched in clearance.

As shown in Fig. 1, Figure 17 to Figure 19, described guide wheel B (7) cylindrical is provided with long guide groove (64) and short-range missile groove (65), long guide groove (64) and short-range missile groove (65) alternately uniform arrangement, long guide groove (64) bottom is lower dead center A (66), and short-range missile groove (65) bottom is lower dead center B (67); Guide wheel B (7) small end is provided with draw-in groove B (68), and draw-in groove B (68) and long guide groove (64), short-range missile groove (65) have certain angle β; Guide wheel B (7) center is provided with an endoporus B (69), this endoporus B (69) and control valve (9) small end (76) cylindrical matched in clearance.During assembling, guide wheel A (6), guide wheel B (7) coordinate composition guide wheel group (70) by draw-in groove A (62), the draw-in groove B (68) of end face, now lead spin slot (60) and have certain dislocation angle γ with long guide groove (64), short-range missile groove (65).

As shown in Figure 1, Figure 20, shown in Figure 21, described control valve (9) greatly end is provided with air drain A (71), air drain B (72), air drain C (73) and installs the grooving A (74) of sealing ring A (8), large end end face is provided with boss (75) for installing back-moving spring A (10), small end is provided with the installing hole C (77) of hollow pins B (2), and installing hole C (77) and air drain A (71), air drain B (72), air drain C (73) have certain angle δ.

As shown in Figure 1, Figure 22, shown in Figure 23, described rotating button (1) small end cylindrical is provided with the installing hole D (78) of special-shaped slot (79), hollow pins B (2), and special-shaped slot (79) both sides are provided with rotating gear and indicate (81); Rotating button (1) center is provided with the blind hole (79) of cooperation control valve (9) small end (76)

As shown in Figure 24 to Figure 29, described speed governing button (3) cylindrical is provided with anti-slip veins (82) and places the gear hole (83) of gear spring (4), steel ball (5), speed governing button (3) small end is provided with special-shaped stopper slot (84), speed governing button (3) endoporus is provided with an irregularly-shaped hole (85), and speed governing button (3) greatly end end face is provided with rotating speed gear sign (86), during assembling, gear spring (4) and steel ball (5) is loaded in speed governing button (3) gear hole (83), and entirety is placed in valve pocket (11) heavy stand hole B (59), the special-shaped slot (80) of rotating button (1) is placed in speed governing button (3) irregularly-shaped hole (85), control valve (9) holds greatly boss (75) to install back-moving spring A (10), small end (76) is through guide wheel B (7) endoporus B (69), guide wheel A (6) endoporus A (63) enters in rotating button (1) central blind hole (79), hollow pins B (2) is placed in rotating button (1) installing hole D (35) and control valve (9) small end (76) installing hole C (77), by rotating button (1), guide wheel A (6), guide wheel B (7) and control valve (9) connect the entirety for doing axially-movable together, solid pin (12) is placed in valve pocket (11) both sides installing hole B (55), finally will by rotating button (1), hollow pins B (2), speed governing button (3), gear spring (4), steel ball (5), guide wheel A (6), guide wheel B (7), sealing ring A (8), control valve (9), back-moving spring A (10), valve pocket (11), solid pin (12), what sealing ring B (13) was combined into is just installed on housing (19) just against in regulating module installing hole (37) against regulating module, speed governing button (3) special-shaped stopper slot (84) and valve pocket (11) stopper slot B (58), housing (19) hollow pins C (15) installing hole A (38) is corresponding, hollow pins C (15) is installed in housing (19) installing hole A (38) and valve pocket (11) and speed governing button (3) cannot be blown out by compressed air, external force rotates speed governing button (3) can make steel ball (5) under the effect of gear spring (4), be locked to certain speed governing gear groove (39) of housing (19), the positive and negative maximum anglec of rotation of speed governing button (3) is limited by special-shaped stopper slot (84) and hollow pins C (15), prevents speed governing button (3) from rotating through shelves.

Figure 30 to Figure 36 is depicted as has a key switching rotating and the explanation of the rotating switching principle of the one-handed performance pneumatic impact spanner of auto-lock function to of the present invention:

1, rotating forward state, under back-moving spring A (10) effect, guide wheel group (70) is pushed down in control valve (9) small end (76) shaft shoulder face, guide wheel B (7) long guide groove (64) lower dead center A (66) is made to be locked in solid pin (12), now control valve (9) air drain A (71) and valve pocket (11) rotate forward air admission hole (51), housing (19) air chamber (31) is communicated with, air drain B (72) and valve pocket (11) reverse air admission hole (52), rotate forward steam vent (53), air discharge duct C (56) is communicated with, air drain C (73) and valve pocket (11) reverse steam vent (54), air discharge duct C (56) is communicated with, now, just be in rotating forward duty against regulating module, pneumatic impact spanner air inlet will rotate forward work,

2, inverted status, when pressing rotating button (1), rotating button (1) promotes guide wheel group (70), control valve (9) overcomes back-moving spring A (10) and does axially-movable to spanner bonnet (23) direction, in the guide wheel group (70) guide wheel A (6) lead spin slot (60) contact solid pin (12) time, an additional spinning motion makes spin slot (60) top dead centre (61) of leading of guide wheel A (6) be locked to solid pin (12) by guide wheel group (70), now discharge rotating button (1), under the effect of back-moving spring A (10), rotating button (1), guide wheel group (70) and control valve (9) start extreme direction before spanner and do axially-movable, when the short-range missile groove (65) contact solid pin (12) of guide wheel B (7), guide wheel group (70) is by an additional spinning motion, short-range missile groove (65) the lower dead center B (67) of guide wheel B (7) is made to be locked in solid pin (12), now control valve (9) air drain B (72) and valve pocket (11) reverse air admission hole (52), housing (19) air chamber (31) is communicated with, air drain C (73) and valve pocket (11) rotate forward air admission hole (51), reversion steam vent (54), air discharge duct C (56) is communicated with, now just be in reversion duty against regulating module, pneumatic impact spanner air inlet is by the work of reversing,

3, recover rotating forward state, when again pressing rotating button (1), rotating button (1) promotes guide wheel group (70), control valve (9) overcomes back-moving spring A (10) and does axially-movable to spanner bonnet (23) direction, in the guide wheel group (70) guide wheel A (6) lead spin slot (60) contact solid pin (12) time, an additional spinning motion makes spin slot (60) top dead centre (61) of leading of guide wheel A (6) be locked to solid pin (12) by guide wheel group (70), now discharge rotating button (1), under the effect of back-moving spring A (10), rotating button (1), guide wheel group (70) and control valve (9) start extreme direction before spanner and do axially-movable, when the long guide groove (64) contact solid pin (12) of guide wheel B (7), guide wheel group (70) is by an additional spinning motion, long guide groove (64) the lower dead center A (66) of guide wheel B (7) is made to be locked in solid pin (12), now control valve (9) recovers to rotate forward duty with the relative position of valve pocket (11), pneumatic impact spanner air inlet will rotate forward work,

Because control valve (9) installing hole C (77) and air drain A (71), air drain B (72), air drain C (73) have certain angled relationships, if axial for control valve (9) rotation 180 ° is connected with rotating button (1) again during assembling, then the positive-negative rotation state of pneumatic impact spanner will be contrary with above-mentioned situation, all set forth with above-mentioned situation herein---namely rotate forward state, solid pin is locked in lower dead center A, switch inverted status, solid pin is locked in lower dead center B.

Figure 30, Figure 31 are depicted as has a key switching rotating and the explanation of the speed control principle of the one-handed performance pneumatic impact spanner of auto-lock function to of the present invention:

When external force rotates speed governing button (3), speed governing button (3) irregularly-shaped hole (85) drives the special-shaped slot (80) of rotating button (1) that rotating button (1) is rotated, thus drive control valve (9) to rotate, when steel ball (5) is locked to certain speed governing gear groove (39) of housing (19) under the effect of gear spring (4), valve pocket (11) rotates forward air admission hole (51), reversion air admission hole (52) is conditioned valve (9) air drain A (71) respectively, air drain B (72) opens certain aperture, air admission hole (51) is rotated forward by valve pocket (11), the aperture of reversion air admission hole (52) controls the air inflow of pneumatic impact spanner groups of motors (21), thus control rotating speed.

Figure 37, Figure 39 be depicted as to of the present invention have one key switch rotating and the work of the one-handed performance pneumatic impact spanner of auto-lock function time gas flowing explanation;

1, intake process, after pressing trigger group (14), intake valve (18-1) is open, compressed air is by assembly of holding one's breath (18), to hold one's breath packing ring (17), air inlet inclined hole (32) enters in housing (19) air chamber (31), by control valve (9) air drain A (71), air admission hole (51) is rotated forward by way of valve pocket (11), housing (19) rotates forward pore (42) and rotates forward air drain A (28) to housing (19), again through bonnet paper washer (22), bonnet (23) rotates forward air drain B (47), groups of motors (21) rotates forward air drain C (48) and enters groups of motors (21), groups of motors (21) is made to drive strike group (20) to realize rotating clockwise,

2, exhaust process is divided into two parts:

1. portion is discharged from groups of motors (21) steam vent (88), housing (19) is entered just against in regulating module installing hole (37) through housing (19) air discharge duct A (27), housing (19) exhaust inclined hole (40), pile warp valve pocket (11) air discharge duct C (56), enters housing (19) handle steam vent (34) and discharges extraneous;

2. all the other waste gas are discharged from groups of motors (21) reversion air drain C (49), bonnet (23) reversion air drain B (44), housing (19) reversion air drain A (29), housing (19) reversion pore (43) is entered to valve pocket (11) reversion air admission hole (52) by bonnet paper washer (22), rotate forward steam vent (53), valve pocket (11) air discharge duct C (56) through control valve (9) air drain B (72), valve pocket (11), enter housing (19) handle steam vent (34) and discharge extraneous; Compressed air continues to flow through above-mentioned path, can realize the work of spanner continuous rotation, as switched reversion work, only need be switched just against the duty of regulating module by pressing rotating button (1).

What the present invention that just explains through diagrams recited above was correlated with has a key switching rotating and some 26S Proteasome Structure and Function principles of the one-handed performance pneumatic impact spanner of auto-lock function, be easy to carry out some amendments on this basis due to the technical staff concerning constructed field, therefore this description is not really wanted to have a key switch rotating the one-handed performance pneumatic impact spanner of auto-lock function is confined in shown or described concrete mechanism and the scope of application by of the present invention, therefore every corresponding modify that may be utilized and equivalent, all belong to the protection domain of patent of the present invention.

Claims

1. there is a key and switch rotating and the one-handed performance pneumatic impact spanner of auto-lock function, comprise housing, strike group, groups of motors, bonnet, bonnet paper washer, assembly of holding one's breath, packing ring of holding one's breath, hollow pins A, hollow pins B, speed governing button, in the handle air admission hole of housing, pressure one is held one's breath packing ring, hold one's breath assembly by pipe joint locking in handle air admission hole, and nature is normally closed, strike group, groups of motors are connected successively and are placed in the large endoporus of housing, groups of motors, strike group are closed in housing by screw, spring washer by bonnet, housing and bonnet centre are provided with bonnet paper washer and seal, and it is characterized in that: also comprise trigger group, rotating button, gear spring, steel ball, guide wheel A, guide wheel B, sealing ring A, control valve, back-moving spring A, valve pocket, solid pin, sealing ring B, hollow pins C, screw, spring washer, described housing rear end face is provided with air discharge duct A, rotating forward air drain A, reversion air drain A, back-moving spring A, resigning hole, described rotating forward air drain A, reversion air drain A, back-moving spring A and the rotating forward air drain B that bonnet end face is provided with, the air drain B that reverses, place back-moving spring A heavy stand hole A corresponding, housing front is provided with trigger group installing hole D, trigger group is placed in installing hole D, trigger group rear end is provided with air inlet push rod, when pressing trigger squeeze group, air inlet push rod is pushed the intake valve of holding one's breath in assembly open and is realized pneumatic impact spanner air inlet running, when releasing trigger group, under the effect of the back-moving spring B in assembly of holding one's breath, intake valve and trigger group are recovered nature and are realized pneumatic impact spanner and shut down, be provided with just against regulating module installing hole and three speed governing gear grooves above described housing trigger group installing hole D, described valve pocket both sides are provided with and rotate forward air admission hole, rotating forward steam vent, reversion air admission hole, reversion steam vent and solid pin installing hole B, described guide wheel B cylindrical is alternately provided with long guide groove and short-range missile groove, and guide wheel B small end is provided with draw-in groove B, described guide wheel A cylindrical is provided with leads spin slot, and guide wheel A small end is provided with draw-in groove A, by the cooperation of draw-in groove A, draw-in groove B, makes guide wheel A and guide wheel B form guide wheel group, guide wheel group is placed in valve pocket endoporus, and solid pin to be inserted in the solid pin installing hole B of valve pocket both sides and is placed in guide wheel group cylindrical guide groove, pining down by solid pin, and guide wheel group can only make specific axially-movable and spinning motion under axial force effect, the large end of described control valve is provided with air drain A, air drain B, air drain C, large end end face is provided with boss for installing back-moving spring A, control valve small end is successively through guide wheel group endoporus, speed governing button irregularly-shaped hole be placed in rotating button blind hole, and it is one overall for rotating button and control valve being connected by hollow pins B, under rotating forward state, back-moving spring A props up control valve, guide wheel group, make the long guide groove lower dead center A of guide wheel B be locked in solid pin, now control valve is opened valve pocket and is rotated forward air admission hole and rotating forward steam vent, and closedown reversion air admission hole and reversion steam vent realize the positive rotating function of pneumatic impact spanner, when pressing rotating button, rotating button promotes guide wheel group, control valve overcomes back-moving spring A axially-movable, when guide wheel A in guide wheel group lead spin slot contact solid pin time, additional spinning motion makes the spin slot top dead centre of leading of guide wheel A be locked to solid pin by guide wheel group, now discharge rotating button, under the effect of back-moving spring A, rotating button, guide wheel group and control valve start the axially-movable that resets, until the short-range missile groove lower dead center B of guide wheel B is locked in solid pin in guide wheel group, now control valve cuts out valve pocket and rotates forward air admission hole and rotating forward steam vent, open reversion air admission hole and realize pneumatic impact spanner reversion switching with reversion steam vent, in like manner, again press rotating button, in guide wheel group, under the effect of solid pin and back-moving spring A, control valve recovers the rotating forward switching that rotating forward state realizes pneumatic impact spanner, described speed governing button cylindrical is provided with the gear hole of placing gear spring and steel ball, and speed governing button endoporus is provided with an irregularly-shaped hole, described rotating button small end cylindrical is provided with special-shaped slot equally and coordinates with speed governing button irregularly-shaped hole, rotating button rotation is driven by rotating speed governing button, thus drive control valve to rotate, when the steel ball on speed governing button is placed in certain speed governing gear groove of housing under the effect of gear spring, valve pocket rotates forward air admission hole or reversion air admission hole has certain aperture under the effect of control valve, rotates forward the air inflow of air admission hole or reversion air admission hole to realize the speed-regulating function of pneumatic impact spanner by controlling valve pocket.

2. according to claim 1 have a key switching rotating and the one-handed performance pneumatic impact spanner of auto-lock function, and it is characterized in that: described housing rear end face is provided with air discharge duct A, air discharge duct A is communicated with below large endoporus; Before housing air discharge duct A bores an exhaust inclined hole and housing, Founder is through against regulating module installing hole, housing handle steam vent; Housing air discharge duct A both sides is provided with and rotates forward air drain A, reversion air drain A, is provided with back-moving spring A resigning hole below air discharge duct A; Housing handle place is provided with handle air admission hole, handle air admission hole with just have brill one air inlet inclined hole through against the air chamber bottom regulating module installing hole; A fabrication hole through rotating forward air drain A bores, just against regulating module installing hole to reversion air drain A in hull outside place, lateral wall fabrication hole is provided with plug and holds one's breath, be communicated with and rotate forward air drain A and just become rotating forward pore against the fabrication hole of regulating module installing hole, be communicated with reversion air drain A and just become reversion pore against the fabrication hole of regulating module installing hole; Housing is just provided with hollow pins C installing hole A above regulating module installing hole leading portion; Housing is just provided with three speed governing gear grooves above regulating module installing hole front end; Housing is just provided with trigger group installing hole D and trigger group spacing hole below regulating module installing hole.

3. according to claim 1 have a key switching rotating and the one-handed performance pneumatic impact spanner of auto-lock function, it is characterized in that: described bonnet end face is provided with the heavy stand hole A rotating forward air drain B, reversion air drain B, air discharge duct B and place back-moving spring A; After assembling, bonnet rotates forward air drain B, reversion air drain B rotates forward air drain A respectively with housing, the air drain A that reverses rotates forward air drain C with groups of motors, the air drain C that reverses is communicated with, and be provided with the sealing of bonnet paper washer each other, bonnet air discharge duct B is communicated with housing air discharge duct A, and the heavy stand hole A that bonnet places back-moving spring A is corresponding with housing back-moving spring A resigning hole.

4. according to claim 1 have a key switching rotating and the one-handed performance pneumatic impact spanner of auto-lock function, it is characterized in that: described trigger group rear end is provided with air inlet push rod; Stopper slot A is provided with above trigger group; During assembling, trigger group is placed in housing trigger group installing hole D, and hollow pins A is installed in housing trigger group spacing hole and also passes trigger group stopper slot A, prevents trigger group in pneumatic impact spanner use procedure from departing from housing; When pressing trigger squeeze group, the intake valve of holding one's breath in assembly is pushed in the start immediately of air inlet push rod open, realize spanner air inlet running, when removal trigger group external force, because of under the effect of the back-moving spring B in assembly of holding one's breath, trigger group is promoted lower reset by intake valve, and intake valve recovers with packing ring of holding one's breath state of holding one's breath, and now spanner decommissions.

5. according to claim 1 have a key switching rotating and the one-handed performance pneumatic impact spanner of auto-lock function, it is characterized in that: described valve pocket both sides are provided with and rotate forward air admission hole, rotating forward steam vent, reversion air admission hole, reversion steam vent and solid pin installing hole B; Valve pocket cylindrical be provided with rotate forward steam vent, the steam vent that reverses is through air discharge duct C and three the grooving B installing sealing ring B; Be provided with stopper slot B above valve pocket, valve pocket front end endoporus is provided with the heavy stand hole B installing speed governing button; During assembling, valve pocket stopper slot B is corresponding with shell bores A, make rotating forward air admission hole, reversion air admission hole be communicated with the rotating forward pore of housing, the pore that reverses respectively, valve pocket air discharge duct C and housing are vented inclined hole, housing handle steam vent is communicated with, valve pocket cylindrical grooving B installs sealing ring B, for isolated inlet and outlet road, prevent mutual gas blowby.

6. according to claim 1 have a key and switch rotating the one-handed performance pneumatic impact spanner of auto-lock function, it is characterized in that: what described guide wheel A cylindrical was provided with uniform arrangement leads spin slot, and leading bottom spin slot is top dead centre; Guide wheel A small end is provided with draw-in groove A, draw-in groove A with lead spin slot there is certain angle α; Guide wheel A center is provided with an endoporus A, this endoporus A and control valve small end cylindrical matched in clearance.

7. according to claim 1 have a key switching rotating and the one-handed performance pneumatic impact spanner of auto-lock function, it is characterized in that: described guide wheel B cylindrical is provided with long guide groove and short-range missile groove, long guide groove and the alternately uniform arrangement of short-range missile groove, be lower dead center A bottom long guide groove, short-range missile trench bottom is lower dead center B; Guide wheel B small end is provided with draw-in groove B, and draw-in groove B and long guide groove, short-range missile groove have certain angle β; Guide wheel B center is provided with an endoporus B, this endoporus B and control valve small end cylindrical matched in clearance.During assembling, guide wheel A, guide wheel B coordinate composition guide wheel group by draw-in groove A, the draw-in groove B of end face, now lead spin slot and long guide groove, short-range missile groove have certain dislocation angle γ.

8. according to claim 1 have a key switching rotating and the one-handed performance pneumatic impact spanner of auto-lock function, it is characterized in that: the large end of described control valve is provided with air drain A, air drain B, air drain C and installs the grooving A of sealing ring A, large end end face is provided with boss for installing back-moving spring A, small end is provided with the installing hole C of hollow pins B, and installing hole C and air drain A, air drain B, air drain C have certain angle δ.

9. according to claim 1 have a key switching rotating and the one-handed performance pneumatic impact spanner of auto-lock function, it is characterized in that: described rotating button small end cylindrical is provided with the installing hole D of special-shaped slot, hollow pins B, special-shaped slot both sides are provided with rotating gear and indicate; Rotating button center is provided with the blind hole of a cooperation control valve small end.

10. according to claim 1 have a key switching rotating and the one-handed performance pneumatic impact spanner of auto-lock function, it is characterized in that: described speed governing button cylindrical is provided with anti-slip veins and places the gear hole of gear spring, steel ball, speed governing button small end is provided with special-shaped stopper slot, speed governing button endoporus is provided with an irregularly-shaped hole, and the large end end face of speed governing button is provided with rotating speed gear and indicates, during assembling, load gear spring and steel ball in speed governing button gear hole, and entirety is placed in valve pocket heavy stand hole B, the special-shaped slot of rotating button is placed in speed governing button irregularly-shaped hole, and back-moving spring A installed by the large end boss of control valve, and small end is through guide wheel B endoporus B, guide wheel A endoporus A enters in rotating button center blind hole, and hollow pins B is placed in rotating button installing hole D and control valve small end installing hole C, by rotating button, guide wheel A, guide wheel B and control valve connect for can together with make the entirety of axially-movable, solid pin is placed in valve pocket both sides installing hole B, finally will by rotating button, hollow pins B, speed governing button, gear spring, steel ball, guide wheel A, guide wheel B, sealing ring A, control valve, back-moving spring A, valve pocket, solid pin, what sealing ring B was combined into is just installed on housing just against in regulating module installing hole against regulating module, speed governing button abnormity stopper slot and valve pocket stopper slot B, housing hollow pins C installing hole A is corresponding, and hollow pins C is installed in shell bores A and valve pocket and speed governing button cannot be blown out by compressed air, external force rotates speed governing button can make steel ball under the effect of gear spring, be locked to certain speed governing gear groove of housing, and the positive and negative maximum anglec of rotation of speed governing button is limited by special-shaped stopper slot and hollow pins C, prevents speed governing button from rotating through shelves.