CN217703203U

CN217703203U - Push button type pneumatic torque screwdriver

Info

Publication number: CN217703203U
Application number: CN202221603757.6U
Authority: CN
Inventors: 游芳蒝
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-01
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses a push-button type pneumatic torque screwdriver, which comprises a screwdriver head, a screw driver and a torque transmission mechanism, wherein the screwdriver head is used for screwing or unscrewing the screw, and the screwdriver head can be pressed to start rotation; the impact rod is used for mounting a screwdriver head; the cylinder motor assembly is arranged in the main shell and used for driving the impact rod and the screwdriver head to rotate; the gear set is in transmission connection with the air cylinder motor assembly and is used for reducing the speed and increasing the torque force; the main shell is internally provided with a mounting cavity, a ventilation cavity and an air inlet cavity which are communicated with each other, and an air inlet channel is arranged between the ventilation cavity and the air inlet cavity; the positive and negative rotation control assembly is arranged in the ventilation cavity, and is used for realizing the switching of the positive rotation air inlet channel and the negative rotation air inlet channel so as to control the positive and negative rotation of the cylinder motor assembly; the ventilation control subassembly, its traversing main shell, cylinder motor subassembly, impact bar are connected with the screwdriver head for open or close inlet channel, the utility model discloses it is easy and simple to handle, effectively improve the operating efficiency.

Description

Push button type pneumatic torque screwdriver

Technical Field

The utility model relates to a bottle opener technical field, in particular to pneumatic torsion bottle opener of button.

Background

The pneumatic screwdriver is also called a pneumatic screwdriver, a pneumatic screwdriver and the like, is a tool for screwing or unscrewing a screw nut and the like, and is mainly used for various assembling operations. The existing pneumatic screwdriver has the disadvantages of complex structure, inconvenient operation and influence on the operating efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a pneumatic torsion bottle opener of button, after the screw was withstood to the bottle opener head, gaseous just can get into cylinder motor subassembly, realizes the corotation and the reversal of the pneumatic torsion bottle opener of button through the button, convenient operation effectively raises the efficiency.

According to the utility model, the screwdriver head is used for screwing or unscrewing the screw, and the screwdriver head can be pressed to start rotation; the impact rod is used for mounting the screwdriver head; the cylinder motor assembly is arranged in the main shell and is used for driving the impact rod and the screwdriver head to rotate; the gear set is in transmission connection with the air cylinder motor assembly and is used for reducing the speed and increasing the torque force; the main shell is internally provided with a mounting cavity, a ventilation cavity and an air inlet cavity which are communicated with each other, and an air inlet channel is arranged between the ventilation cavity and the air inlet cavity; the positive and negative rotation control assembly is arranged in the ventilation cavity, and is used for realizing the switching of the positive rotation air inlet channel and the negative rotation air inlet channel so as to control the positive and negative rotation of the cylinder motor assembly; and the ventilation control assembly transversely penetrates through the main shell, the cylinder motor assembly and the impact rod and is connected with the screwdriver head and used for opening or closing the air inlet channel.

Furthermore, the positive and negative rotation control assembly comprises a button, a valve core and a valve body, the valve body is arranged in the ventilation cavity, a positive rotation air inlet channel and a negative rotation air inlet channel are arranged in the valve body, the valve core is arranged in the valve body in a sliding mode, the button is connected with the valve core and enables the valve core to move in the valve body in the pressing process, a first step used for isolating the positive rotation air inlet channel and a second step used for isolating the negative rotation air inlet channel are arranged on the valve core, and the first step and the second step are matched to enable gas to flow out of the positive rotation air inlet channel or the negative rotation air inlet channel.

Furthermore, a long pin is arranged between the button and the valve core, and an elastic part is arranged between the valve core and the bottom of the valve body.

Furthermore, an opening through which the ventilation control assembly can pass is formed in the valve core.

Furthermore, the ventilation control assembly comprises an ejector pin, a connecting fitting and a wind shielding part used for blocking gas from entering the positive and negative rotation control assembly, the wind shielding part is abutted to the air inlet channel through a sealing ring and blocks gas from entering the valve body, one end of the ejector pin is connected with the wind shielding part, the other end of the ejector pin is connected with the screwdriver head through the connecting fitting, the wind shielding part can move outwards under the thrust of the ejector pin, and the air inlet channel is opened to enable the gas to enter the valve body.

Furthermore, the cylinder motor assembly comprises a cylinder, a front cover, a rear cover and a rotor, the front cover and the rear cover are respectively arranged at two ends of the cylinder, the rotor is rotatably arranged in the cylinder, a rotor shaft of the rotor penetrates through the front cover to be exposed, and a plurality of blades are distributed on the rotor.

Furthermore, a first air inlet groove, a second air inlet groove and an air outlet are formed in the rear cover, and the first air inlet groove and the second air inlet groove respectively correspond to the forward rotation air inlet channel and the reverse rotation air inlet channel.

Furthermore, the gear set comprises a first rotating ring, a second rotating ring and a transmission gear, the first rotating ring is connected with the cylinder motor assembly through a plurality of small gears distributed on the side face of the first rotating ring, the transmission gear is fixedly connected with the first rotating ring, the second rotating ring is connected with the transmission gear through a plurality of small gears distributed on the side face of the second rotating ring, and the torque clutch is connected with the second rotating ring.

Furthermore, the hydraulic cylinder further comprises a torsion clutch, wherein the torsion clutch is connected to the impact rod and used for torque separation when an overload condition occurs, and the cylinder motor assembly is protected.

Further, torque clutch includes connecting block, connecting axle sleeve, driving shaft sleeve and fixed axle sleeve, the connecting block is connected with the gear train, the one end and the connecting block of connecting axle sleeve are connected, and the other end is connected with the impact beam, the transmission shaft cover is established on the connecting axle sleeve, the fixed axle sleeve is established on the driving shaft sleeve, be equipped with a plurality of spin between fixed axle sleeve and the driving shaft sleeve, the driving shaft sleeve rotates through this spin relatively fixed axle sleeve, torque clutch still is connected with the regulating part, and this regulating part is connected with torque clutch through a plurality of connecting axles, movable block and spring.

The beneficial effects of the utility model reside in that: the utility model is simple and convenient to operate, only need press the screwdriver head, can drive the ventilation control subassembly and remove, thereby open the inlet channel in the main casing, make in the gaseous positive reverse control assembly that gets into, switch corotation inlet channel and reversal inlet channel through positive reverse control assembly, get into the inside rotor corotation of making of cylinder motor subassembly or reverse again, thereby realize the positive reverse rotation of screwdriver head, positive reverse control assembly changes the gaseous position that gets into cylinder motor subassembly through the button, realize positive reverse rotation, high durability and convenient use, effectively improve the operating efficiency.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic diagram of the exploded structure of fig. 1.

Fig. 3 is an elevation sectional view of fig. 1.

Fig. 4 is a front sectional view of the main casing.

Fig. 5 is a front sectional view of the striking rod.

Fig. 6 is an exploded view of the torque clutch.

Fig. 7 is an exploded view of the gear assembly.

Fig. 8 is an exploded view of the cylinder motor assembly.

Fig. 9 is a plan view of a rear cover of the cylinder motor assembly.

Fig. 10 is an exploded view of the forward and reverse rotation control assembly.

Fig. 11 is a perspective view of the valve body.

Fig. 12 is a perspective view of the valve body.

Fig. 13 is a schematic cross-sectional view of the valve cartridge and valve body mating arrangement.

Figure 14 is a perspective view of the vent control assembly.

Fig. 15 is a cross-sectional view showing the forward rotation state of the present invention.

Fig. 16 is a cross-sectional view showing the reverse rotation state of the present invention.

Description of reference numerals: a housing 100; a main case 110; a mounting cavity 1101; a vent lumen 1102; an air intake cavity 1103; an air inlet 1106; an intake passage 1107;

a screwdriver head 200;

an impact rod 300; a bayonet 310; a socket 320;

a torque clutch 400; a connection block 410; a connecting boss 420; a outdrive 430; a fixed bushing 440; an adjusting member 450; a connecting shaft 460; a movable block 470;

a gear set 500; a first rotating ring 510; a second rotating ring 520; a drive gear 530; a pinion gear 540;

a cylinder motor assembly 600; a cylinder 610; a front cover 620; a rear cover 630; a first inlet duct 6301; a second inlet 6302; an exhaust port 6303; a guide groove 6304; a rotor 640; a blade 650;

a forward and reverse rotation control assembly 700; a button 710; a valve core 730; a first step 7301; a second step 7302; an elongated opening 7303; a valve body 740; forward rotation intake passage 7401; a reverse intake passage 7402; a long pin 750; a wind plug 760;

a ventilation control assembly 800; a thimble 810; a wind deflector 820; a connection fitting 830; an auxiliary block 8301; pin 8302; a heading 8303.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the positional descriptions, such as the directions or positional relationships indicated above, below, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for the purpose of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Referring to fig. 1 to 16, the present invention relates to a push button type pneumatic torque screwdriver, which comprises a housing 100, a screwdriver head 200, an impact rod 300, a torque clutch 400, a gear set 500, a cylinder motor assembly 600, a forward/reverse rotation control assembly 700 and a ventilation control assembly 800, all of which are installed in the housing 100, wherein the housing 100 can be formed by a main housing 110 alone or by combining the main housing 110 and a plurality of connected housings; the front section of the impact rod 300 is provided with a hexagonal through hole with the same shape as the middle section of the screwdriver head 200, so that the relative position of the screwdriver head 200 and the impact rod 300 can be fixed, the structure is one of descriptions made for realizing the corresponding assembly of the screwdriver head 200 and the impact rod 300 in the embodiment, in order to adapt to the screwdriver head 200, the front section of the impact rod 300 can also be designed into through holes with other shapes, such as a circle, a square and the like, the front section of the impact rod 300 is also provided with two symmetrical bayonets 310, and clamping beads are arranged in the bayonets 310 and used for positioning the depth of the screwdriver head 200 inserted into the impact rod 300; the torsion clutch 400 is connected with the impact rod 300, the gear set 500 is connected with the torsion clutch 400, the gear set 500 plays a role in reducing speed and increasing torsion, the air cylinder motor assembly 600 and the forward and reverse rotation control assembly 700 are respectively installed in the main shell 110, the air cylinder motor assembly 600 is connected with the gear set 500, the ventilation control assembly 800 transversely penetrates through the forward and reverse rotation control assembly 700, the air cylinder motor assembly 600, the gear set 500, the torsion clutch 400 and the impact rod 300 to be connected with the screwdriver head 200, and the ventilation control assembly 800 is matched with the screwdriver head 200 to control air to enter the forward and reverse rotation control assembly 700.

The main shell 110 is internally provided with a mounting cavity 1101, a ventilation cavity 1102 and an air inlet cavity 1103 which are communicated with each other, an air inlet channel 1107 is arranged between the ventilation cavity 1102 and the air inlet cavity 1103, the ventilation control assembly 800 is used for opening or closing the air inlet channel 1107, the air cylinder motor assembly 600 is arranged in the mounting cavity 1101, the forward and reverse rotation control assembly 700 is arranged in the ventilation cavity 1102, the air inlet cavity 1103 is connected with an air inlet 1106, the air inlet 1106 is connected with a bolt which is transversely communicated with the inside, the bolt or an internal thread structure of the air inlet 1106 can be connected with other external air sources, after the external air sources are connected, air enters the air inlet cavity 1103 but cannot enter the main shell, after a screwdriver head is pressed on a screw and triggers the ventilation control assembly 800, the air inlet channel 1107 is opened, and the air enters the main shell to start the air cylinder motor assembly 600. Triggering the turning on or off of the turning on torque driver by the ventilation control assembly 800 is equivalent to adding a second switch, so that the pneumatic torque driver is safer to use and saves air.

Further, the torque clutch 400 includes a connecting block 410, a connecting shaft 460 sleeve 420, a driving shaft sleeve 430 and a fixed shaft sleeve 440, the connecting block 410 is connected with the gear train 500, one end of the connecting shaft 460 sleeve 420 is connected with the connecting block 410, the other end of the connecting shaft 460 sleeve is connected with the impact rod 300, the driving shaft sleeve 430 is arranged on the connecting shaft 460 sleeve 420, the fixed shaft sleeve 440 is arranged on the driving shaft sleeve 430, a plurality of rolling balls are arranged between the fixed shaft sleeve 440 and the driving shaft sleeve 430, and the driving shaft sleeve 430 rotates relative to the fixed shaft sleeve 440 through the rolling balls.

The torque clutch 400 is further connected with an adjusting part 450, the adjusting part 450 is arranged outside the connecting shell through threaded connection, the adjusting part 450 is connected with a movable block 470 arranged in the connecting shell through a plurality of connecting shafts 460, the movable block 470 is connected with the torque clutch 400 through a spring, the screwing depth of the adjusting part 450 on the connecting shell is changed, the movable block 470 can be pushed through the connecting shafts 460, and then the spring is compressed, the restoring force of the spring acts between the fixed shaft sleeve 440 and the transmission shaft sleeve 430, so that the friction force between the transmission shaft sleeve 430 and the rolling ball is changed, and the torque limit of the torque clutch 400 is adjusted.

Further, the gear set 500 includes a first rotating ring 510, a second rotating ring 520 and a transmission gear 530, the first rotating ring 510 is connected to the cylinder motor assembly 600 through a plurality of small gears 540 distributed on a side surface thereof, the transmission gear 530 is fixedly connected to the first rotating ring 510, the second rotating ring 520 is engaged with the transmission gear 530 through a plurality of small gears 540 distributed on a side surface thereof, and the torque clutch 400 is connected to the second rotating ring 520 through a connecting block 410 thereof.

The cylinder motor assembly 600 drives the first rotating ring 510 to rotate through the pinion 540, the first rotating ring 510 drives the transmission gear 530 to rotate, the transmission gear 530 drives the second ring to rotate through meshing with the pinion 540, and the second ring drives the torque clutch 400 to rotate.

Further, the cylinder motor assembly 600 includes a cylinder 610, a front cover 620, a rear cover 630 and a rotor 640, wherein the front cover 620 and the rear cover 630 are respectively disposed at two ends of the cylinder 610, the rotor 640 is rotatably disposed in the cylinder 610, a shaft of the rotor 640 is exposed through the front cover 620 and is engaged with a pinion 540 on the first rotating ring 510 of the gear set 500, and a plurality of blades 650 are distributed on the rotor 640.

The rear cover 630 is provided with a first air inlet groove 6301, a second air inlet groove 6302 and an air outlet 6303, the first air inlet groove 6301 and the second air inlet groove 6302 respectively correspond to the forward rotation air inlet channel 7401 and the reverse rotation air inlet channel 7402, guide grooves 6304 are respectively arranged beside the first air inlet groove 6301 and the second air inlet groove 6302, and since the air outlet is arranged below the first air inlet groove 6301 and the second air inlet groove 6302, the air flows downwards from above the cylinder 610 after entering the cylinder 610, so as to drive the blades 650 to rotate, the shape of the guide grooves 6304 corresponds to the gaps of the blades 650 on the rotor, and the guide grooves 6304 function as uniformly dispersing the air on the surfaces of the blades 650 to generate more stable driving force, so that the speed of the rotor 640 is stable, and the efficiency is improved; the exhaust port 6303 corresponds to an exhaust passage of the main casing 110, and gas in the cylinder 610 enters the exhaust passage of the main casing 110 through the exhaust port 6303 and is exhausted outside the main casing through the exhaust passage.

The rotor 640 is disposed in the cylinder 610 and biased to be close to the first air inlet groove 6301 and the second air inlet groove 6302, and the air outlet 6303 is disposed at a side of the first air inlet groove 6301 opposite to the second air inlet groove 6302, so that when the rotor 640 is driven by air, the air is prevented from flowing in a reverse direction to generate resistance, which affects the rotation speed of the rotor 640.

Further, the forward/reverse rotation control assembly 700 includes a button 710, a valve member 730, and a valve body 740, the valve body 740 is disposed in the vent chamber 1102, the valve member 730 moves up and down in the valve body 740 by an elastic member, and the button 710 is mounted on the valve member 730 by a long pin 750.

The valve body 740 is provided with a forward rotation air inlet channel 7401 and a reverse rotation air inlet channel 7402 which correspond to the two air inlet channels 1104 of the main shell 110, the forward rotation air inlet channel 7401 corresponds to a first air inlet groove 6301, the reverse rotation air inlet channel 7402 corresponds to a second air inlet groove 6302, the valve core 730 is provided with a first step 7301, a second step 7302 and a strip-shaped opening 7303, the strip-shaped opening 7303 is convenient for the ventilation control assembly 800 to pass through and does not influence the ventilation control assembly 800 when the valve core 730 moves up and down, the first step 7301 and the second step 7302 are matched to promote gas to flow out from the forward rotation air inlet channel 7401 or the reverse rotation air inlet channel 7402, the valve core 730 isolates the reverse rotation air inlet channel 7402 by the second step 7302 in a normal state, and the gas flows into the cylinder motor assembly 600 through the first air inlet groove 6301 of the cylinder motor assembly 600 so that the cylinder motor assembly 600 rotates forward; when the button 710 is pressed, the valve plug 730 is driven to move downwards by the long pin 750, and at this time, the forward rotation air inlet channel 7401 is isolated by the first step 7301, and the gas can only flow out of the reverse rotation air inlet channel 7402, so that the cylinder motor assembly 600 reversely rotates.

Wherein, the bottom end of the valve body 740 can be further connected with a wind plug 760, and the wind plug 760 can facilitate the replacement of parts of the forward and reverse rotation control assembly 700.

Further, the ventilation control assembly 800 includes a thimble 810, a wind shielding member 820 and a connection fitting 830, the wind shielding member 820 is abutted to the air inlet channel 1107 through a sealing ring, a spring is connected between the wind shielding member 820 and the inner wall of the air inlet cavity 1103, the wind shielding member 820 is used for blocking air from entering the valve body 740, one end of the thimble 810 is connected with the wind shielding member 820, the other end of the thimble 810 transversely penetrates through the elongated opening 7303 of the valve core 730, the cylinder motor assembly 600, the gear set 500, the torque clutch 400 and the impact rod 300 and is connected with the driver head 200 through the connection fitting 830, and the wind shielding member 820 is pushed by the thimble 810 to move outwards, so that the air enters the valve body 740.

The connection accessory 830 includes an auxiliary block 8301, a spring, a pin 8302 and a ball 8303, the auxiliary block 8301 is provided with a groove connected with the thimble 810, the pin 8302 is connected with the auxiliary block 8301 through the spring, the ball 8303 is arranged between the pin 8302 and the screwdriver head 200, and the auxiliary block 8301 is connected with the torque clutch 400 through another spring.

The tail section of the impact rod 300 is also provided with a bayonet 310, and a clamping bead is also arranged in the bayonet 310, so that when the clamping bead is clamped at a clamping part of the auxiliary block 8301, the position of the auxiliary block 8301 inside the impact rod 300 can be positioned, the auxiliary block 8301 is fixed relative to the impact rod, and meanwhile, the rotation of the clamping bead is utilized, and the stability of the auxiliary block 8301 can be kept when the impact rod 300 rotates.

Wherein, the middle section of impact rod 300 is equipped with two corresponding sockets 320, the pin 8302 wears to establish in two sockets 320, works as the utility model discloses a when torsion reached the limit, this pin 8302 can jump down for thimble 810 moves back under spring action, drives the piece 820 that keeps out the wind and resets and establish at inlet channel 1107, blocks in gaseous entering valve body 740.

The working principle is as follows: the gas enters the gas inlet cavity 1103 from the gas inlet 1106, the screwdriver head 200 is pressed, the screwdriver head 200 jacks up the wind shielding part 820 through the connecting fitting 830 and the thimble 810, the gas enters the ventilation shell 740 from the gas inlet channel 1107 due to the jacking of the wind shielding part 820, namely the gas does not enter the cylinder motor assembly 600 when the screwdriver head 200 does not jack the screw, the gas enters the cylinder motor assembly 600 through the forward and reverse rotation control assembly 700 when the screwdriver head 200 jacks the screw, and when the button 710 is not pressed, the gas enters the cylinder motor assembly 600 through the forward rotation gas inlet channel 7401, the gas inlet channel 1104 and the first gas inlet groove 6301 to drive the rotor 640 to rotate forward, and the cylinder motor assembly 600 drives the impact rod 300 and the screwdriver head 200 through the gear set 500 and the forward rotation clutch 400; when the button 710 is pressed, the valve plug 730 is driven to move downwards by the long pin 750, and at this time, gas enters the cylinder motor assembly 600 from the reverse air inlet passage 7402, the other air inlet passage 1104 and the second air inlet groove 6302 to drive the rotor 640 to rotate reversely, and the cylinder motor assembly 600 drives the impact rod 300 and the screwdriver head 200 to rotate reversely by the gear set 500 and the torque clutch 400.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A push button pneumatic torque driver, comprising:

comprises a screwdriver head, which is used for screwing or unscrewing a screw and can be started to rotate by pressing the screwdriver head;

the impact rod is used for mounting the screwdriver head;

the cylinder motor assembly is arranged in the main shell and used for driving the impact rod and the screwdriver head to rotate;

the gear set is in transmission connection with the air cylinder motor assembly and is used for reducing the speed and increasing the torque force;

the main shell is internally provided with a mounting cavity, a ventilation cavity and an air inlet cavity which are communicated with each other, and an air inlet channel is arranged between the ventilation cavity and the air inlet cavity;

the positive and negative rotation control assembly is arranged in the ventilation cavity and used for switching the positive rotation air inlet channel and the negative rotation air inlet channel so as to control the positive and negative rotation of the cylinder motor assembly;

and the ventilation control assembly transversely penetrates through the main shell, the cylinder motor assembly and the impact rod and is connected with the screwdriver head and used for opening or closing the air inlet channel.

2. A push button pneumatic torque driver as defined in claim 1, wherein: the positive and negative rotation control assembly comprises a button, a valve core and a valve body, the valve body is arranged in the ventilation cavity, a positive rotation air inlet channel and a negative rotation air inlet channel are arranged in the valve body, the valve core is arranged in the valve body in a sliding mode, the button is connected with the valve core and enables the valve core to move in the valve body in the pressing process, a first step used for isolating the positive rotation air inlet channel and a second step used for isolating the negative rotation air inlet channel are arranged on the valve core, and the first step and the second step are matched to enable gas to flow out of the positive rotation air inlet channel or the negative rotation air inlet channel.

3. A push button pneumatic torque driver as defined in claim 2, wherein: a long pin is arranged between the button and the valve core, and an elastic part is arranged between the valve core and the bottom of the valve body.

4. A push button pneumatic torque driver as defined in claim 2, wherein: the valve core is provided with an opening through which the ventilation control assembly can conveniently pass.

5. A push button pneumatic torque driver as defined in claim 1, wherein: the ventilation control assembly comprises a thimble, a connecting fitting and a wind shielding part used for blocking gas from entering the positive and negative rotation control assembly, the wind shielding part is abutted to the position of the gas inlet channel through a sealing ring and blocks the gas from entering the valve body, one end of the thimble is connected with the wind shielding part, the other end of the thimble is connected with the screwdriver head through the connecting fitting, the wind shielding part can move outwards under the thrust of the thimble, and the gas inlet channel is opened to enable the gas to enter the valve body.

6. A push button pneumatic torque driver as defined in claim 1, wherein: the air cylinder motor assembly comprises an air cylinder, a front cover, a rear cover and a rotor, wherein the front cover and the rear cover are respectively arranged at two ends of the air cylinder, the rotor is rotatably arranged in the air cylinder, a rotor shaft of the rotor penetrates through the front cover to be exposed, and a plurality of blades are distributed on the rotor.

7. An air button torque driver according to claim 6 and further comprising: the rear cover is provided with a first air inlet groove, a second air inlet groove and an air outlet, and the first air inlet groove and the second air inlet groove respectively correspond to the forward rotation air inlet channel and the reverse rotation air inlet channel.

8. A push button pneumatic torque driver as defined in claim 1, wherein: the gear set comprises a first rotating ring, a second rotating ring and a transmission gear, the first rotating ring is connected with the cylinder motor assembly through a plurality of small gears distributed on the side face of the first rotating ring, the transmission gear is fixedly connected with the first rotating ring, the second rotating ring is connected with the transmission gear through a plurality of small gears distributed on the side face of the second rotating ring, and the torque clutch is connected with the second rotating ring.

9. A push button pneumatic torque driver as defined in claim 8, wherein: the torsion clutch is connected to the impact rod and used for torque separation when overload occurs, and the cylinder motor assembly is protected.

10. A push button pneumatic torque driver as defined in claim 8, wherein: the torsion clutch comprises a connecting block, a connecting shaft sleeve, a transmission shaft sleeve and a fixed shaft sleeve, wherein the connecting block is connected with a gear set, one end of the connecting shaft sleeve is connected with the connecting block, the other end of the connecting shaft sleeve is connected with an impact rod, the transmission shaft sleeve is sleeved on the connecting shaft sleeve, the fixed shaft sleeve is sleeved on the transmission shaft sleeve, a plurality of rolling balls are arranged between the fixed shaft sleeve and the transmission shaft sleeve, the transmission shaft sleeve rotates relative to the fixed shaft sleeve through the rolling balls, the torsion clutch is further connected with an adjusting piece, and the adjusting piece is connected with the torsion clutch through a plurality of connecting shafts, movable blocks and springs.