CN204893803U - But adopt butterfly formula to turn to switching mechanism's one -hand operation pneumatic wrench - Google Patents
But adopt butterfly formula to turn to switching mechanism's one -hand operation pneumatic wrench Download PDFInfo
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- CN204893803U CN204893803U CN201520443996.3U CN201520443996U CN204893803U CN 204893803 U CN204893803 U CN 204893803U CN 201520443996 U CN201520443996 U CN 201520443996U CN 204893803 U CN204893803 U CN 204893803U
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Abstract
The utility model relates to a but adopt butterfly formula to turn to switching mechanism's one -hand operation pneumatic wrench includes casing, strike group, motor group, back lid, butterfly formula action bars, speed governing knob, governing valve, just reverses that valve, trigger are organized, the subassembly etc. Of holding one's breath, press the packing ring of holding one's breath in the handle inlet port of casing, the subassembly of holding one's breath passes through the coupling locks in the handle inlet port, and natural state is the normal close, strike group, motor group establishes ties in proper order and places the big hole of casing in, and the back lid seals motor group, strike group in the casing through screw, spring washer, and it is sealed to be equipped with back lid paper gasket in the middle of casing and the back lid, arrange the staggering of the innovative design of this device through butterfly formula action bars, each mechanism of spanner with the optimal configuration of air flue, but realized all functions of the different equal one -hand operation spanners of operating personnel with the hand custom to reduce the manufacturing cost of casing blank, improved loss and the energy saving of the inside compressed air transmission of spanner.
Description
Technical field
The utility model relates to pneumatic impact spanner field of tool, particularly a kind ofly adopts the butterfly one-hand operation pneumatic impact spanner turning to switching mechanism.
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 into two classes: the first kind is speed governing, is just positioned at spanner rear end against mechanism, and when spanner carries out speed governing or just reversing switching, operating personnel must bimanualness.Equations of The Second Kind is speed governing, positive reversing gearbox and straight line adjacent with trigger is arranged, just reversing to switch and realized by action bars rotary oscillation, be known as the spanner of one-hand operation, but carefully analyze, this type of design is because action bars can have influence on the grasping of handle, so action bars can only be positioned at the side of spanner, the side of close thumb after general operation bar is positioned at and holds pneumatic impact spanner, the conversion just reversed realizing pneumatic impact spanner is stirred in use by thumb, according to the use habit of operator, the spanner of a right hand use cannot realize left hand one-handed performance, because its switch operation bar of spanner that the right hand uses is stirred by thumb, but change after left hand holds pneumatic impact spanner, switch operation bar will be positioned at that side of palm, thumb cannot complete switch operation, and switch operation bar and forefinger can be caused to interfere, make forefinger cannot cocking comfily, if that is pneumatic impact spanner is in order to realize one-handed performance, a left side must be designed to, right two kinds of different structures, soly bring a lot of inconvenience to sales force and buyer.
Therefore, traditional pneumatic impact spanner exists and one-handed performance all functions and the operating personnel that cannot realize different handedness (left-handed operation or right-hand operated) all cannot jointly can use the defect of same spanner.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of by each mechanism structure of Optimal improvements pneumatic impact spanner, adopts butterfly action bars to switch and just reverses operation, can allow the operating personnel of different handedness all can the pneumatic impact spanner of one-handed performance all functions.
For solving the problems of the technologies described above, the utility model realizes as follows: described in the utility modelly a kind ofly adopt the butterfly one-hand operation pneumatic impact spanner of switching mechanism that turns to 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, speed governing knob, gear spring A, steel ball A, butterfly action bars, gear spring B, steel ball B, sealing ring A, just reverse valve, sealing ring B, flow speed control valve, hollow pins B, trigger group, 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, described rotating forward air drain A, reversion air drain A and bonnet end face rotates forward air drain B, the air drain B that reverses is 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, trigger group is placed in trigger group installing hole, 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 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 above described housing trigger group installing hole, be just placed in hole against regulating module, be just positioned at outside housing against the speed governing knob of regulating module and butterfly action bars; Being provided with a draw-in groove and just reversing valve small end square toes in the middle of described butterfly action bars and form tight fit, just reversing driving the just reverse switching that valve axial-rotation realizes spanner by stirring butterfly action bars; The described valve cylindrical that just reversing is provided with radial hole A, flow speed control valve cylindrical is provided with three radial hole B not of uniform size, the small end of flow speed control valve stretches into through sealing ring B and just reverses in the endoporus A of valve, flow speed control valve traversing through end is inserted in speed governing knob endoporus C, and fix with hollow pins A, make one of them radial hole of flow speed control valve B by rotating speed governing knob and just reverse valve radial hole A and be communicated with, thus control throughput realizes the speed governing of spanner.
Described housing rear end face is provided with air discharge duct A, and air discharge duct A is communicated with below large endoporus; Housing air discharge duct A bores an exhaust inclined hole and housing is just through against regulating module installing hole, housing handle place steam vent; Housing air discharge duct A both sides is provided with and rotates forward air drain A, reversion air drain A, and after assembling, this air drain is communicated with the rotating forward air drain B on bonnet end face, the air drain B that reverses respectively; Housing handle place is provided with air admission hole, and air admission hole is with just through against regulating module installing hole bottom air plenum; Housing is just being provided with and is rotating forward inclined hole, reversion inclined hole in regulating module installing hole, and rotate forward inclined hole from through to rotating forward air drain A outside housing handle, reversion inclined hole is in like manner through to reversion air drain A, and handle side wall rotates forward fabrication hole, reversion fabrication hole is provided with plug and holds one's breath; Housing is just provided with through spacing hole above regulating module installing hole; Housing be just provided with above regulating module installing hole front end just against positive stop lug boss and two just against gear groove; Housing is just provided with trigger group installing hole and trigger group spacing hole below regulating module installing hole.
Described bonnet end face is provided with and rotates forward air drain B, reversion air drain B, air discharge duct B; 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 is provided with the sealing of bonnet paper washer each other.
The described valve shaft heart that just reversing is provided with inner bore of step A, inner bore of step B, endoporus A; Just reversing valve cylindrical and be provided with radial hole A, air discharge duct C, seal groove, small end cylindrical is provided with biplane square toes; Just reversing valve and be loaded on housing just against in regulating module installing hole, in housing spacing hole, be provided with hollow pins B, can make just to reverse valve and can not be blown out housing by compressed air; Just reversing valve seal ring recess and filling a sealing ring A, compressed air just can not be spilt against regulating module installing hole along housing; When just reverse valve radial hole A rotate forward inclined hole with housing or the inclined hole that reverses is communicated with time, housing reverses inclined hole or rotate forward inclined hole and just reverse valve exhaust groove C and be communicated with.
Described butterfly action bars both sides are provided with side arm, and side arm end is indent arc-shaped, and side arm end face is provided with speed governing gear and indicates A; Butterfly action bars middle is provided with a draw-in groove, and cylindrical is provided with just against gear hole, and end face is provided with speed governing gear hole; Gear spring A, steel ball A are positioned in speed governing gear hole, coordinate and are abutted against, can precisely control speed governing gear with three heavy stand hole one of speed governing knob; Gear spring B, steel ball B are positioned over just against in gear hole, are just abutted against against gear slot fit with housing, can precisely control just against gear; Butterfly action bars two side arms is positioned at housing just below positive stop lug boss, prevents just against adjusted shelves; In the middle of butterfly action bars draw-in groove with just reverse valve small end square toes close-fitting, the drive of middle draw-in groove is made just to reverse valve generation rotation by stirring butterfly action bars two side arms, when just against the steel ball B in gear hole snap under the effect of gear spring B housing just against gear groove time, just reversing valve cylindrical radial hole A and just rotating forward inclined hole with housing or the inclined hole that reverses is communicated with, thus the just reverse realizing spanner switches.
Described flow speed control valve axle center is provided with endoporus B; Flow speed control valve cylindrical is divided into three sections, and segment cylindrical is provided with locating hole A, and stage casing cylindrical is provided with three radial hole B not of uniform size; Flow speed control valve penetrates and just reverses valve endoporus A, and its large section of cylindrical is locked to and just reverses valve inner bore of step A, prevents flow speed control valve from being blown out by Compressed Gas; Flow speed control valve segment cylindrical is equipped with sealing ring B and can be sealed and matched with just reversing valve inner bore of step B, prevents compressed air from scurrying out along just reversing valve endoporus A.
Described speed governing knob cylindrical is provided with anti-slip veins and locating hole B, and speed governing knob one end face is provided with three heavy stand holes, and the other end is provided with speed governing gear and indicates B; Speed governing knob endoporus C coordinates with flow speed control valve segment cylindrical, hollow pins A inserts in locating hole B and flow speed control valve locating hole A, make speed governing knob become as a whole with flow speed control valve, now three heavy stand holes of speed governing knob end face and flow speed control valve cylindrical three radial hole B form an angle relation; Rotate by stirring speed governing knob, flow speed control valve is driven and rotates together, when going to the steel ball A in butterfly action bars end face speed governing gear hole and snap in certain heavy stand hole of speed governing knob end face under gear spring A effect, the flow speed control valve cylindrical radial hole B corresponding with speed governing knob heavy stand hole just with just reverse valve radial hole A and be communicated with, thus control the speed governing that throughput realizes spanner.
Described trigger group rear end is provided with air inlet push rod; Stopper slot is provided with above trigger group; During assembling, trigger group is placed in housing trigger group installing hole, and hollow pins C is installed in housing trigger group spacing hole and also passes trigger group stopper slot, 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 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.
Here is the explanation of a kind of gas flowing when adopting the butterfly one-hand operation pneumatic impact spanner work turning to switching mechanism described in the utility model:
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, reverse valve radial hole A by way of flow speed control valve radial hole B, just, housing rotating forward inclined hole 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, and enter housing just against in regulating module installing hole through housing air discharge duct A, housing exhaust inclined hole, pile warp is just reversing valve exhaust groove C, enters housing handle steam vent and discharges extraneous;
2. all the other waste gas are discharged from groups of motors reversion air drain C, bonnet reversion air drain B, housing reversion air drain A, housing reversion inclined hole, housing is entered just against in regulating module installing hole by bonnet paper washer, pile warp is just reversing valve exhaust groove C, then enters housing handle steam vent and discharges extraneous;
Compressed air continues to flow through above-mentioned path, can realize the work of spanner continuous rotation, and as switched reversion work, only need stir butterfly action bars and make it toward opposite side start, operation principle is the same.
Good effect of the present utility model:
1, this pneumatic impact spanner is by the innovative design of butterfly action bars, and the operating personnel realizing different handedness all can use same spanner jointly;
2, this pneumatic impact spanner being staggeredly arranged by each mechanism structure, by speed governing just against mechanism design above trigger, realize operating personnel and do not change when holding gesture, the start-stop of one-hand operation spanner, speed governing, just reverse the function of switching;
3, this pneumatic impact spanner is by the mode of design handle side wall fabrication hole, realizes casing blank and compression casting can be adopted shaping, abandon the poor efficiency of Conventional gravity forging type, the production model of high cost;
4, 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 utility model is described in further detail.
Fig. 1 is decomposition texture schematic diagram of the present utility model
Fig. 2 is decomposition texture schematic diagram of the present utility model
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 the P direction view of housing
Fig. 7 is exploded structural representation of the present utility model
Fig. 8 is exploded structural representation of the present utility model
Fig. 9 is the B-B sectional view just reversing valve
Figure 10 is the A-A sectional view just reversing valve
Figure 11 is the structural representation just reversing valve
Figure 12 is the operating position structural representation just reversing valve
Figure 13 is the structural representation of butterfly action bars
Figure 14 is just against the operating position structural representation of regulating module
Figure 15 is the operating position structural representation of butterfly action bars
Figure 16 is the structural representation of flow speed control valve
Figure 17 is the A-A sectional view of flow speed control valve
Figure 18 is the rearview of speed governing knob
Figure 19 is the A-A sectional view of speed governing knob
Figure 20 is the front view of speed governing knob
Figure 21 is the structural representation of trigger group
Figure 22 is the operating position structural representation of trigger group
Figure 23 rotates forward intake process gas flow schematic diagram
Figure 24 rotates forward exhaust process portion flowing schematic diagram
Figure 25 rotates forward all the other exhaust-gas flow schematic diagrames of exhaust process
Diagram, the hollow pin 1 A2 3 ball speed control knob A4 gear spring A5 butterfly type 6 gear lever spring B7 steel ball B8 seal A9 is reversing valve sealing ring bl1 10 speed regulating valve inlet plunger 12 pull unit 12-1 13 shell hit 14 15 motor group 16 17 18 spring washer back cover back cover paper pad 19 20 hollow screw pin B21 hollow pin C22 23 breath breath washer component inlet valve 23 23-1-2 reset spring 23-24 handle air inlet pipe joint 3 25 ouchi 26 exhaust slot hole A27 forward gas tank A28 reverse gas tank A29 exhaust hole 30 inverse control components installed 31 vent hole 32 chamber 33 forward oblique hole 34 inversion technology hole hole 35 forward 36 37 plug hole spacing hole 38 and 39 inversion process limit 40 is reverse convex gear groove 41 pull installation hole 42 43 forward pull unit spacing hole gas tank B44 reverse gas tank B45 exhaust slot B46 forward gas tank C47 flight inversion gas tank inner hole A49 C48 stair steps within the inner hole B50 hole A51 A52 exhaust slot C53 radial hole sealing ring groove 54 square head 55 56 side arm speed gear mark A57 58 reverse gear 59 speed gear hole card slot hole concave arc shape within 60 61 inner hole B62 small cylindrical section 63 positioning hole A64 cylindrical midway through 65 radial hole B66 long cylindrical 67 antiskid lines 68 location hole B69 sink hole 70 speed gear hole C72 limit specified B71 vent groove 73 motor group
Detailed description of the invention
As shown in Fig. 1 to Figure 22, the utility model realizes as follows: described in the utility modelly a kind ofly adopt the butterfly one-hand operation pneumatic impact spanner of switching mechanism that turns to comprise housing (13), strike group (14), groups of motors (15), bonnet (17), bonnet paper washer (16), to hold one's breath assembly (23), to hold one's breath packing ring (22), hollow pins A (1), speed governing knob (2), gear spring A (4), steel ball A (3), butterfly action bars (5), gear spring B (6), steel ball B (7), sealing ring A (8), just reversing valve (9), sealing ring B (10), flow speed control valve (11), hollow pins B (20), trigger group (12), hollow pins C (21), screw (19), spring washer (18), in the handle air admission hole (24) of described housing (13), pressure one is held one's breath packing ring (22), assembly (23) of holding one's breath lock onto in handle air admission hole (24) by pipe joint (23-3), and nature is normally closed, described strike group (14), groups of motors (15) are connected successively and are placed in the large endoporus (25) of housing (13), groups of motors (15), strike group (14) are closed in housing (13) by screw (19), spring washer (18) by bonnet (17), and housing (13) is provided with bonnet paper washer (16) with bonnet (17) centre and seals, housing (13) rear end face is provided with air discharge duct A (26), rotates forward air drain A (27), reversion air drain A (28), described rotating forward air drain A (27), reversion air drain A (28) and bonnet end face rotates forward air drain B (43), the air drain B (44) that reverses is corresponding, bonnet (17) end face rotates forward air drain B (43), reversion air drain B (44) rotates forward air drain C (46) with groups of motors (15) again, the air drain C (47) that reverses is corresponding, housing (13) front is provided with trigger group installing hole (41), trigger group (12) is placed in trigger group installing hole (41), trigger group (12) rear end is provided with air inlet push rod (12-1), when pressing trigger squeeze group (12), air inlet push rod (12-1) intake valve (23-1) pushed open in assembly of holding one's breath (23) realizes pneumatic impact spanner air inlet running, when releasing trigger group (12), under the effect of the middle back-moving spring (23-2) of assembly of holding one's breath (23), intake valve (23-1) and trigger group (12) recovery nature realize pneumatic impact spanner and shut down, described housing (13) trigger group installing hole (41) top is provided with just against regulating module installing hole (30), just be placed in hole against regulating module, be just positioned at housing (13) outward against the speed governing knob (2) of regulating module and butterfly action bars (5), being provided with a draw-in groove (57) in the middle of described butterfly action bars (5) and just reversing valve (9) small end square toes (54) and form tight fit, just reversing driving the just reverse switching that valve (9) axial-rotation realizes spanner by stirring butterfly action bars (5), described valve (9) cylindrical that just reversing is provided with radial hole A (51), flow speed control valve (11) cylindrical is provided with three radial hole B (65) not of uniform size, flow speed control valve (11) small end stretches into through sealing ring B (10) the endoporus A (50) just reversing valve (9), flow speed control valve (11) traversing through end is inserted in speed governing knob (2) endoporus C (71), and fix with hollow pins A (1), make flow speed control valve (11) one of them radial hole B (65) by rotating speed governing knob (2) and just reverse valve (9) radial hole A (51) and be communicated with, thus control the speed governing that throughput realizes spanner.
As shown in Figures 3 to 6, described housing (13) rear end face is provided with air discharge duct A (26), and air discharge duct A (26) is communicated with large endoporus (25) below; It is just through against regulating module installing hole (30), housing (13) handle place steam vent (31) with housing (13) that housing (13) air discharge duct A (26) bores exhaust inclined hole (29); Housing (13) air discharge duct A (26) both sides is provided with and rotates forward air drain A (27), reversion air drain A (28), after assembling, this air drain is communicated with the rotating forward air drain B (43) on bonnet (17) end face, the air drain B (44) that reverses respectively; Housing (13) handle place is provided with air admission hole (24), and air admission hole (24) is with just through against regulating module installing hole (30) bottom air plenum (32); Housing (13) is just being provided with and is rotating forward inclined hole (33), reversion inclined hole (34) in regulating module installing hole (30), rotate forward inclined hole (33) through to rotating forward air drain A (27) outside housing (13) handle, reversion inclined hole (34) is in like manner through to reversion air drain A (28), and handle side wall rotates forward fabrication hole (35), reversion fabrication hole (36) is provided with plug (37) and holds one's breath; Housing (13) is just provided with through spacing hole (38) against regulating module installing hole (30) top; Housing (13) be just provided with above regulating module installing hole (30) front end just against positive stop lug boss (39) and two just against gear groove (40); Housing (13) is just provided with trigger group installing hole (41) and trigger group spacing hole (42) against regulating module installing hole (30) below.
As shown in Figure 7, Figure 8, described bonnet (17) end face is provided with and rotates forward air drain B (43), reversion air drain B (44), air discharge duct B (45); After assembling, bonnet (17) rotates forward air drain B (43), reversion air drain B (44) rotates forward air drain A (27) with housing (13) respectively, the air drain A (28) that reverses rotates forward air drain C (46) with groups of motors (15), the air drain C (47) that reverses is communicated with, and is provided with bonnet paper washer (16) sealing each other.
As shown in Fig. 9 to Figure 12, Figure 14, described valve (9) axle center of just reversing is provided with inner bore of step A (48), inner bore of step B (49), endoporus A (50); Just reversing valve (9) cylindrical and be provided with radial hole A (51), air discharge duct C (52), seal groove (53), small end cylindrical is provided with biplane square toes (54); Just reversing valve (9) and be loaded on housing (13) just against in regulating module installing hole (30), housing (13) spacing hole (38) is provided with hollow pins B (20) and makes just to reverse valve (9) and can not be blown out housing (13) by compressed air; Just reversing valve (9) seal groove (53) and filling a sealing ring A (8), compressed air just can not be spilt against regulating module installing hole (30) along housing (13); When just reverse valve (9) radial hole A (51) rotate forward inclined hole (33) with housing (13) or the inclined hole (34) that reverses is communicated with time, housing (13) reverses inclined hole (34) or rotate forward inclined hole (33) and just reverse valve (9) air discharge duct C (52) and be communicated with.
As shown in Figure 12 to Figure 15, described butterfly action bars (5) both sides are provided with side arm (55), side arm (55) end is indent arc-shaped (60), and side arm (55) end face is provided with speed governing gear and indicates A (56), butterfly action bars (5) middle is provided with a draw-in groove (57), and cylindrical is provided with just against gear hole (58), and end face is provided with speed governing gear hole (59), gear spring A (4), steel ball A (3) are positioned in speed governing gear hole (59), be abutted against, can precisely control speed governing gear with three heavy stand hole (69) one of speed governing knob (2), gear spring B (6), steel ball B (7) are positioned over just against in gear hole (58), be just abutted against against gear groove (40), can precisely control just against gear with housing (13), butterfly action bars (5) two side arms (55) is positioned at housing (13) just against positive stop lug boss (39) below, prevents just against adjusted shelves, in the middle of butterfly action bars (5) draw-in groove (57) with just reverse valve (9) small end square toes (54) close-fitting, middle draw-in groove (57) drive is made just to reverse valve (9) generation rotation by stirring butterfly action bars (5) two side arms (55), when just against the steel ball B (7) in gear hole (58) snap under the effect of gear spring B (6) housing (13) just against gear groove (40) time, just reverse valve (9) cylindrical radial hole A (51) and just rotate forward inclined hole (33) with housing (13) or the inclined hole (34) that reverses is communicated with, thus the just reverse realizing spanner switches.
As shown in Figure 14, Figure 16, Figure 17, described flow speed control valve (11) axle center is provided with endoporus B (61); Flow speed control valve (11) cylindrical is divided into three sections, and segment cylindrical (62) is provided with locating hole A (63), and stage casing cylindrical (64) is provided with three radial hole B (65) not of uniform size; Flow speed control valve (11) penetrates and just reverses valve (9) endoporus A (50), its large section of cylindrical (66) is locked to just reverses valve (9) inner bore of step A (48), prevents flow speed control valve (11) from being blown out by Compressed Gas; Flow speed control valve (11) segment cylindrical (62) is equipped with sealing ring B (10) and can be sealed and matched with just reversing valve (9) inner bore of step B (49), prevents compressed air from scurrying out along just reversing valve (9) endoporus A (50).
As shown in Figure 14, Figure 18 to Figure 20, described speed governing knob (2) cylindrical is provided with anti-slip veins (67) and locating hole B (68), one end face of speed governing knob (2) is provided with three heavy stand holes (69), and the other end is provided with speed governing gear and indicates B (70); Speed governing knob (2) endoporus C (71) coordinates with flow speed control valve (11) segment cylindrical (62), hollow pins A (1) inserts in locating hole B (68) and flow speed control valve (11) locating hole A (63), make speed governing knob (2) become as a whole with flow speed control valve (11), now three heavy stand holes (69) and flow speed control valve (11) cylindrical three radial hole B (65) of speed governing knob (2) end face form an angle relation; Rotate by stirring speed governing knob (2), flow speed control valve (11) is driven and rotates together, when going to the steel ball A (3) in butterfly action bars (5) end face speed governing gear hole (59) and snap in speed governing knob (2) end face certain heavy stand hole (69) under gear spring A (4) effect, flow speed control valve (11) the cylindrical radial hole B (65) corresponding with speed governing knob (2) heavy stand hole (69) just with just reverse valve (9) radial hole A (51) and be communicated with, thus control the speed governing that throughput realizes spanner.
As shown in Figure 21, Figure 22, described trigger group (12) rear end is provided with air inlet push rod (12-1); Trigger group (12) top is provided with stopper slot (72); During assembling, trigger group (12) is placed in housing (13) trigger group installing hole (41), hollow pins C (21) is installed in housing (13) trigger group spacing hole (42) and also passes trigger group (12) stopper slot (72), prevents trigger group (12) in pneumatic impact spanner use procedure from departing from housing (13); When pressing trigger squeeze group (12), the intake valve (23-1) in assembly of holding one's breath (23) is pushed in air inlet push rod (12-1) start immediately open, realize spanner air inlet running, when removal trigger group (12) external force, because of under the effect of the middle back-moving spring (23-2) of assembly of holding one's breath (23), trigger group (12) is promoted lower reset by intake valve (23-1), intake valve (23-1) recovers with packing ring (22) of holding one's breath state of holding one's breath, and now spanner decommissions.
As shown in Figure 23 to Figure 25 for described in the utility model a kind of adopt the butterfly one-hand operation pneumatic impact spanner work turning to switching mechanism time gas flowing explanation:
1, intake process, after pressing trigger group (12), intake valve (23-1) is open, compressed air is by assembly of holding one's breath (23), packing ring (22) of holding one's breath enters in housing (13) air chamber (32), by way of flow speed control valve (11) radial hole B (65), just reversing valve (9) radial hole A (51), housing (13) rotates forward inclined hole (33) and rotates forward air drain A (27) to housing (13), again through bonnet paper washer (16), bonnet (17) rotates forward air drain B (43), groups of motors (15) rotates forward air drain C (46) and enters groups of motors (15), groups of motors (15) is made to drive strike group (14) to realize rotating clockwise,
2, exhaust process is divided into two parts:
1. portion is discharged from groups of motors steam vent (73), housing (13) is entered just against in regulating module installing hole (30) through housing (13) air discharge duct A (26), housing (13) exhaust inclined hole (29), pile warp is just reversing valve (9) air discharge duct C (52), enters housing (13) handle steam vent (31) and discharges extraneous;
2. all the other waste gas are discharged from groups of motors (15) reversion air drain C (47), bonnet (17) reversion air drain B (44), housing (13) reversion air drain A (28), housing (13) reversion inclined hole (34), housing (13) is entered just against in regulating module installing hole (30) by bonnet paper washer (16), pile warp is just reversing valve (9) air discharge duct C (52), then enters housing (13) handle steam vent (31) and discharges extraneous;
Compressed air continues to flow through above-mentioned path, can realize the work of spanner continuous rotation, and as switched reversion work, only need stir butterfly action bars (5) and make it toward opposite side start, operation principle is the same.
What the utility model that just explains through diagrams recited above was correlated with a kind ofly adopts butterfly some 26S Proteasome Structure and Function principles turning to the one-hand operation pneumatic impact spanner of switching mechanism, be easy to carry out some amendments on this basis due to the technical staff concerning constructed field, half arm or alteration of form is changed into than butterfly action bars (5) two side arms (55) as will be described, described housing (13) blank is adopted pressure casting process, being changed by handle side wall brill fabrication hole solution airway problems directly adopts gravity foundry technology to solve airway problems by housing (13) blank, described just reverse valve (9) and housing (13) just increase a similar lining part between regulating module installing hole (30), described just reverse valve (9) cylindrical increases some sealing rings and coordinates etc.Therefore this description is not really wanted a kind ofly to adopt the butterfly one-hand operation pneumatic impact spanner of switching mechanism that turns to be confined in shown or described concrete mechanism and the scope of application by described in the utility model; therefore every corresponding modify that may be utilized and equivalent, all belong to the protection domain of the utility model patent.
Claims (8)
1. adopt the butterfly one-hand operation pneumatic impact spanner turning to switching mechanism, it is characterized in that: 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, speed governing knob, gear spring A, steel ball A, butterfly action bars, gear spring B, steel ball B, sealing ring A, just reverse valve, sealing ring B, flow speed control valve, hollow pins B, trigger group, 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 and reversion air drain A, bonnet end face is provided with and rotates forward air drain B, reversion air drain B and air discharge duct B, groups of motors is provided with and rotates forward air drain C and reversion air drain C; Housing front is provided with trigger group installing hole, and trigger group is placed in trigger group installing hole, and trigger group rear end is provided with air inlet push rod; Be provided with just against regulating module installing hole above described housing trigger group installing hole, be just placed in hole against regulating module, be just positioned at outside housing against the speed governing knob of regulating module and butterfly action bars; Be provided with a draw-in groove and just reverse valve small end square toes in the middle of described butterfly action bars and form tight fit; The described valve cylindrical that just reversing is provided with radial hole A, and flow speed control valve cylindrical is provided with three radial hole B not of uniform size, and the small end of flow speed control valve stretches into through sealing ring B and just reverses in the endoporus A of valve, and flow speed control valve traversing through end is inserted in speed governing knob endoporus C, and fixes with hollow pins A; One of them radial hole of described flow speed control valve B with just reverse valve radial hole A and be communicated with.
2. according to claim 1ly a kind ofly adopt the butterfly one-hand operation pneumatic impact spanner turning to switching mechanism, 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; Housing air discharge duct A bores an exhaust inclined hole and housing is just through against regulating module installing hole, housing handle place steam vent; The rotating forward air drain A that housing air discharge duct A both sides is arranged, reversion air drain A are communicated with the rotating forward air drain B on bonnet end face, the air drain B that reverses respectively; Housing handle place is provided with air admission hole, and air admission hole is with just through against regulating module installing hole bottom air plenum; Housing is just being provided with and is rotating forward inclined hole, reversion inclined hole in regulating module installing hole, rotate forward inclined hole from through to rotating forward air drain A outside housing handle, reversion inclined hole is from through to reversion air drain A outside housing handle, and handle side wall rotates forward fabrication hole, reversion fabrication hole is provided with plug and holds one's breath; Housing is just provided with through spacing hole above regulating module installing hole; Housing be just provided with above regulating module installing hole front end just against positive stop lug boss and two just against gear groove; Housing is just provided with trigger group installing hole and trigger group spacing hole below regulating module installing hole.
3. according to claim 1ly a kind ofly adopt the butterfly one-hand operation pneumatic impact spanner turning to switching mechanism, it is characterized in that: the rotating forward air drain B that described bonnet end face is arranged, reversion air drain B are communicated with the rotating forward air drain C that groups of motors is arranged, the air drain C that reverses respectively, and are provided with the sealing of bonnet paper washer each other.
4. according to claim 1ly a kind ofly adopt the butterfly one-hand operation pneumatic impact spanner turning to switching mechanism, it is characterized in that: the described valve shaft heart that just reversing is provided with inner bore of step A, inner bore of step B, endoporus A; Just reversing the large end cylindrical of valve and be provided with radial hole A, air discharge duct C, seal groove, small end cylindrical is provided with biplane square toes; Just reverse valve and be loaded on housing just against in regulating module installing hole, in housing spacing hole, be provided with hollow pins B; Just reverse valve seal ring recess and fill a sealing ring A; When just reverse valve radial hole A rotate forward inclined hole with housing or the inclined hole that reverses is communicated with time, housing reverses inclined hole or rotate forward inclined hole and just reverse valve exhaust groove C and be communicated with.
5. according to claim 1ly a kind ofly adopt the butterfly one-hand operation pneumatic impact spanner turning to switching mechanism, it is characterized in that: described butterfly action bars both sides are provided with side arm, and side arm end is indent arc-shaped, side arm end face is provided with speed governing gear and indicates A; Butterfly action bars middle is provided with a draw-in groove, and cylindrical is provided with just against gear hole, and end face is provided with speed governing gear hole; Gear spring A, steel ball A are positioned in speed governing gear hole, are abutted against with three heavy stand holes of speed governing knob; Gear spring B, steel ball B are positioned over just against in gear hole, are just abutted against against gear groove with housing; Butterfly action bars two side arms is positioned at housing just below positive stop lug boss; In the middle of butterfly action bars draw-in groove with just reverse valve small end square toes and form tight fit, the drive of middle draw-in groove is made just to reverse valve generation rotation by stirring butterfly action bars two side arms, when just against the steel ball B in gear hole snap under the effect of gear spring B housing just against gear groove time, just reversing valve cylindrical radial hole A and just rotating forward inclined hole with housing or the inclined hole that reverses is communicated with.
6. according to claim 1ly a kind ofly adopt the butterfly one-hand operation pneumatic impact spanner turning to switching mechanism, it is characterized in that: described flow speed control valve axle center is provided with endoporus B; Flow speed control valve cylindrical is divided into three sections, and segment cylindrical is provided with locating hole A, and stage casing cylindrical is provided with three radial hole B not of uniform size; Flow speed control valve penetrates and just reverses valve endoporus A, and its large section of cylindrical is locked to and just reverses valve inner bore of step A; Flow speed control valve segment cylindrical is equipped with sealing ring B and can be sealed and matched with just reversing valve inner bore of step B.
7. according to claim 1ly a kind ofly adopt the butterfly one-hand operation pneumatic impact spanner turning to switching mechanism, it is characterized in that: described speed governing knob cylindrical is provided with anti-slip veins and locating hole B, one end face of speed governing knob is provided with three heavy stand holes, and other end is provided with speed governing gear and indicates B; Speed governing knob endoporus C coordinates with flow speed control valve segment cylindrical, hollow pins A inserts in locating hole B and flow speed control valve locating hole A, make speed governing knob become as a whole with flow speed control valve, three heavy stand holes of speed governing knob end face and flow speed control valve cylindrical three radial hole B form an angle relation; Rotate by stirring speed governing knob, flow speed control valve is driven and rotates together, when the steel ball A in the speed governing gear hole going to butterfly action bars end face snaps in speed governing knob end face heavy stand hole under gear spring A effect, the flow speed control valve cylindrical radial hole B corresponding with speed governing knob heavy stand hole just with just reverse valve radial hole A and be communicated with.
8. according to claim 1ly a kind ofly adopt the butterfly one-hand operation pneumatic impact spanner turning to switching mechanism, it is characterized in that: described trigger group rear end is provided with air inlet push rod; Stopper slot is provided with above trigger group; Trigger group is placed in housing trigger group installing hole, and hollow pins A is installed in housing trigger group spacing hole also through trigger group stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443996.3U CN204893803U (en) | 2015-06-24 | 2015-06-24 | But adopt butterfly formula to turn to switching mechanism's one -hand operation pneumatic wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443996.3U CN204893803U (en) | 2015-06-24 | 2015-06-24 | But adopt butterfly formula to turn to switching mechanism's one -hand operation pneumatic wrench |
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| CN204893803U true CN204893803U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520443996.3U Expired - Fee Related CN204893803U (en) | 2015-06-24 | 2015-06-24 | But adopt butterfly formula to turn to switching mechanism's one -hand operation pneumatic wrench |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838932A (en) * | 2018-09-14 | 2018-11-20 | 泰田集团有限公司 | Pneumatic wrench |
| CN109176377A (en) * | 2018-09-07 | 2019-01-11 | 杭州巨星科技股份有限公司 | Driver capable of reversing with manual, electric two kinds of operating modes |
| CN113367113A (en) * | 2021-06-22 | 2021-09-10 | 浙江日晟农林科技有限公司 | Backpack type blowing and spraying integrated machine |
| WO2022166318A1 (en) * | 2021-01-19 | 2022-08-11 | 漳州南方机械有限公司 | Device for switching and locking forward and reverse rotation functions of impact wrench by using one key |
| TWI799088B (en) * | 2022-01-18 | 2023-04-11 | 冠億齒輪股份有限公司 | Adjustable grips for power tools |
-
2015
- 2015-06-24 CN CN201520443996.3U patent/CN204893803U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109176377A (en) * | 2018-09-07 | 2019-01-11 | 杭州巨星科技股份有限公司 | Driver capable of reversing with manual, electric two kinds of operating modes |
| CN109176377B (en) * | 2018-09-07 | 2024-02-20 | 杭州巨星科技股份有限公司 | Reversible screwdriver with manual and electric working modes |
| CN108838932A (en) * | 2018-09-14 | 2018-11-20 | 泰田集团有限公司 | Pneumatic wrench |
| WO2022166318A1 (en) * | 2021-01-19 | 2022-08-11 | 漳州南方机械有限公司 | Device for switching and locking forward and reverse rotation functions of impact wrench by using one key |
| CN113367113A (en) * | 2021-06-22 | 2021-09-10 | 浙江日晟农林科技有限公司 | Backpack type blowing and spraying integrated machine |
| CN113367113B (en) * | 2021-06-22 | 2023-08-22 | 浙江日晟农林科技有限公司 | Backpack type blowing and spraying integrated machine |
| TWI799088B (en) * | 2022-01-18 | 2023-04-11 | 冠億齒輪股份有限公司 | Adjustable grips for power tools |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20160624 |
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