TWM544652U - Pneumatic operation device - Google Patents

Description

Pneumatic operating device

The present invention relates to a pneumatic operating device, and more particularly to a pneumatic operating device for controlling a hydraulic power tool.

Heavy-duty machines are quite common at present. General heavy-duty machines, especially heavy-duty tools related to construction or civil engineering, such as engineering dump trucks or cranes, are generally powered by hydraulic power. the Lord. Therefore, these implements are typically equipped with a motor to pressurize the hydraulic fluid to provide the high pressure hydraulic fluid required for the hydraulic power implement. The motor for pressurizing the hydraulic fluid may be an electric motor or an internal combustion engine, and the user is often an internal combustion engine on the engineering machine. Before starting to operate the hydraulic power tool, the internal combustion engine needs to be started or the power of the internal combustion engine is sent to the fluid pumping device, so that the high-pressure hydraulic fluid can be supplied by the fluid pumping device, and after the hydraulic power tool is used, The mechanical coupling between the internal combustion engine and the fluid pumping device (for example, with a clutch) is interrupted to stop the operation of the fluid pumping device to avoid various wear and tear.

In the design of general engineering tools, an operation control device is usually provided for the operator to operate the hydraulic power tool. Some of the operation control devices are operated electrically and pneumatically, especially for construction vehicles, which are particularly suitable for pneumatically controlling hydraulic power tools because they are provided with pneumatic devices.

The conventional pneumatic operating device includes a base, a plurality of piston valves, a pressure plate and an operating rod; the base defines a plurality of gas flow passages; the piston valves are respectively disposed in the gas flow passages, and are normally subjected to the gases The pressure channel is driven by the high pressure gas to be in the closed position; the pressure plate is disposed on the base and above the piston valves; the operating rod is coupled to the pressure plate. The user can swing in the direction of one of the piston valves by the operating rod to drive the pressure plate to yaw toward the piston valve and press the piston valve to move the piston valve downward to be in the open position for high pressure. The gas passes through and is supplied to the pneumatic power unit, and the hydraulic power tool is controlled by the pneumatic power unit to activate the corresponding operation mode.

However, since the pressure plate is disc-shaped, it is easy to simultaneously press a plurality of piston valves during yaw, causing two or more piston valves to be in the open position at the same time, thereby allowing the pneumatic power unit to control the hydraulic power tools to simultaneously start multiple The operation mode is seriously out of control, causing damage to hydraulic power tools and surrounding things, and even accidents and accidents, which are extremely dangerous.

Furthermore, since the operating lever can swing freely with respect to the base, once the user inadvertently touches the operating lever in a non-working state (for example, a rest time), the hydraulic power tool suddenly operates at this time, resulting in a hydraulic power tool. And the destruction of things around, even accidents and accidents, injury and innocence, is very dangerous.

The main purpose of the present invention is to provide a pneumatic operating device capable of accurately controlling one of the piston valves to be pressed and opened at a time, thereby driving the pneumatic power device to control the hydraulic power tool to start only one operation mode at a time, avoiding The hydraulic power tool starts out of multiple operating modes and loses control, improving the control precision and safety of the creation.

Another object of the present invention is to provide a pneumatic operating device that can be restrained when not in use without arbitrarily swinging relative to the base, thereby preventing the user from accidentally touching the operating lever and causing the hydraulic power tool to suddenly operate, reducing work. Accidents occur and reduce the risk of damage to the hydraulic power tools and the people around them, and enhance the safety of this creation.

In order to achieve the foregoing objects, the present invention provides a pneumatic operating device including a base, a platen, a guiding structure, and an operating lever.

The base opens a plurality of gas flow paths.

The piston valves are respectively disposed in the gas flow passages and are driven by a high pressure gas from a pneumatic power source in the gas flow passages to be in a closed position.

The pressure plate includes a swinging seat and a plurality of convex arms. The swinging seat is swingably disposed on a top surface of the base. The convex arm rings are disposed outside the swinging seat and are respectively located above the piston valves.

The guiding structure is disposed on the base and defines a shaft hole and a plurality of guiding grooves. The guiding grooves surround the shaft hole and communicate with the shaft hole, and respectively correspond to the convex arms.

The lever passes through the shaft hole of the guiding structure and is coupled to the swing seat.

Wherein, when the operating rod swings along one of the guiding grooves and drives the swinging seat to yaw toward one side thereof, one of the convex arms corresponding to one of the guiding grooves presses one of the piston valves located below thereof, so as to be located therein One of the piston valves below a convex arm moves downward to an open position for high pressure gas to pass through and is supplied to a pneumatic power device, and the remaining convex arms are kept at a distance from the corresponding piston valve, so that the remaining convex arms are The corresponding piston valve continues to remain in the closed position.

Preferably, the air pressure operating device further includes a limiting member disposed on the operating lever and movable between a locking position and an unlocking position. When the limiting member is in the locking position, the limiting member is inserted into the locking member. a shaft hole of the guiding structure, the operating rod is restricted by the limiting member and cannot enter any one of the guiding grooves, so that the operating rod cannot drive the swinging seat yaw, and when the limiting member is located at an unlocking position, the limit is The bit member is disengaged from the shaft hole of the guiding structure, and the operating rod is free to swing along any one of the guide grooves and can drive the swing seat yaw.

Preferably, the operating rod includes a head portion, a rod portion and a sleeve, the rod portion of the operating rod passes through the shaft hole of the guiding structure and is coupled to the swinging seat, and the head of the operating rod is disposed at An end of the rod of the operating rod, the sleeve of the operating rod is disposed outside the rod portion of the operating rod and adjacent to the head of the operating rod; wherein the limiting member comprises an outer sleeve, an inner sleeve and An elastic member, the outer sleeve defines a shaft hole, the inner sleeve is inserted through the shaft hole of the outer sleeve and defines a large diameter shaft hole and a small diameter shaft hole, and the inner sleeve has large and small diameter shaft holes There is a connecting wall between the inner wall surfaces, the rod portion of the operating rod extends through the large diameter shaft hole and the small diameter shaft hole of the inner sleeve, and the sleeve of the operating rod extends into the small diameter shaft hole of the inner sleeve The elastic member is disposed on the small diameter shaft hole of the inner sleeve and the two ends thereof respectively abut against the connecting wall between the bottom surface of the sleeve of the operating rod and the large and small diameter shaft holes of the inner sleeve; When the limiting member is in the locking position, the inner sleeve of the limiting member is inserted into the shaft hole of the guiding structure, and the rod portion of the operating rod is subjected to The inner sleeve of the limiting member is restricted from entering any one of the guiding grooves, so that the rod portion of the operating rod cannot drive the swinging seat yaw; wherein, when the outer and inner sleeves of the limiting member are along the operation When the rod portion of the rod moves upward to the unlocking position, the inner sleeve of the limiting member is disengaged from the shaft hole of the guiding structure and compresses the elastic member of the limiting member, so that the rod portion of the operating rod can freely follow any a guide groove swinging and driving the swing seat yaw; wherein when the elastic member of the limiting member is pushed by the elastic force thereof to move the inner sleeve of the limiting member downward along the rod portion of the operating rod, The inner sleeve of the limiting member drives the outer sleeve of the limiting member to move down to the locking position.

Preferably, the outer circumference of the outer sleeve protrudes from a first outer ring protrusion, and the outer side of the inner sleeve protrudes from a second outer ring protrusion, and the bottom surface of the second outer ring protrusion abuts against the first outer ring protrusion The top surface.

Preferably, the air pressure operating device further comprises a dust jacket, an opening of the gas flow passage covering the top surface of the base, a portion of the piston valve protruding from the opening of the gas flow passage, the pressure plate a guiding structure, a portion of the lever portion of the operating rod exposed to the inner sleeve of the limiting member, a portion of the inner sleeve of the limiting member exposed to the outer sleeve of the limiting member, and the limiting member The lower part of the outer casing.

Preferably, the guiding structure includes a guiding seat and a plurality of supporting portions, the guiding seat defines the shaft hole and the guiding slots, and the supporting portions are disposed between the guiding seat and the base, wherein the guiding portion is disposed between the guiding seat and the base The guiding seat and the supporting portions together define an accommodating space, the oscillating seat is located in the accommodating space, and the bulging arms extend laterally from the outer side wall of the oscillating seat to the bottom portion and extend outside the accommodating space. .

Preferably, each support portion extends downward from the outer side wall of the guide seat in a direction away from the guide seat through the space between the two convex arms to the top surface of the base.

Preferably, the top surface of the base is provided with a plurality of fixing seats, each of the fixing seats is located between two of the gas flow channels located between the openings of the top surface of the base, and each of the fixing seats defines a socket, and the supporting The portion includes an extension portion and a latch, each extension portion includes a first plate body, a second plate body, a third plate body and a fourth plate body, wherein the first and second plate bodies respectively receive the guide plate The outer side wall of the lead seat extends laterally downward and is tapered away from the guiding seat, the third plate body extends downward from the bottom surface of the outer side wall of the guiding seat and the front side thereof and the first side The rear surface of the second plate body is in contact with the bottom surface of the third plate body extending from the bottom surface of the third plate body away from the guide seat and the top surface thereof and the bottom surface of the first and second plate bodies a through hole is formed in a side away from the guiding seat, the pins respectively include a head portion and a rod portion, and the rod portions of the pins pass through the through holes and are inserted into the insertion holes, The outer diameter of the head of the equal plug is larger than the jacks and is located outside the jacks and on the first, second, third, fourth boards A space being enclosed configuration.

Preferably, the swinging seat includes a body and a ball joint. The arm ring is disposed on the outer side wall of the body, and the body defines a large diameter grouping hole and a small diameter grouping hole. The rod includes a rod portion, and the rod portion is inserted into the large diameter group connecting hole. The ball type universal joint comprises a ball body and a column body. The top surface of the rod is provided with a socket, and the ball body is swingably disposed. In the socket, the cylinder protrudes from the ball and is inserted into the small diameter hole.

Preferably, the convex arms respectively comprise an arm portion and a pressing block, and the arm portions are disposed on the outer side wall of the body of the swinging seat near the bottom of the body of the swinging seat and respectively define a consistent hole. The pressing blocks respectively include a head portion and a rod portion, and the rod portions of the pressing blocks are inserted into the through holes of the arm portions, and the heads of the pressing blocks are disposed at one end of the rod portion of the pressing block and The outer diameter is larger than the through holes of the arms, and thus is located outside the through holes of the arms and above the piston valves.

The effect of the creation is that the guiding structure can assist the operating rod to precisely control the pressure plate to only press and open one of the piston valves at a time, thereby driving the pneumatic power device to control the hydraulic power tool to start only one operation mode at a time, avoiding The hydraulic power tool starts out of multiple operating modes and loses control, improving the control precision and safety of the creation. Moreover, when the limiting member is in the locked position, the creation is in a locked state, and the operating rod can be restrained by the limiting member when not in use without arbitrarily swinging relative to the base along any one of the guiding grooves, thereby avoiding the user. Inadvertently touching the operating lever causes the hydraulic power tool to suddenly operate, reducing the accident of the work safety and reducing the risk of injury to the hydraulic power tool and the people around it, and improving the safety of the creation.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

1 to FIG. 4, FIG. 1 is a perspective view of the pneumatic operating device of the present invention, FIG. 2 is an exploded view of the pneumatic operating device of the present invention, and FIG. 3 is a side view of the pneumatic operating device of the present invention, and FIG. A cross-sectional view of the created pneumatic operating device, the present invention provides a pneumatic operating device comprising a base 10, a plurality of piston valves 21-24, a pressure plate 30, a guiding structure 40, an operating rod 50 and a limiting member 60.

The susceptor 10 opens a plurality of gas flow paths 11.

The piston valves 21 to 24 are respectively disposed in the gas flow paths 11 and are driven by the high pressure gas from a pneumatic power source (not shown) in the gas flow paths 11 to be in a closed position, such as 1, 3 and 4 are shown. Thereby, the high pressure gas of the pneumatic power source cannot be supplied to the one-pneumatic power unit (not shown). In the preferred embodiment, the base 10 defines four gas flow passages 11. The pneumatic operation device of the present invention comprises a total of four piston valves 21-24, and four piston valves 21-24 are disposed in the four gas flow passages 11. Under the push of high-pressure gas of the pneumatic power source, the four piston valves 21~24 all pass through the opening 111 of the four gas flow passages 11 on the top surface of the base 10, and the four piston valves 21~24 at this time They are all in the off position. Wherein, each of the piston valves 21 to 24 corresponds to a different operation mode of the pneumatic power device for controlling a hydraulic power tool (for example, an industrial dump truck or a crane, not shown), for example, moving up and down, left and right, and thus in the pistons. When the valves 21 to 24 are in the closed position, the pneumatic power unit controls the hydraulic power tool to be in a non-starting state.

The pressure plate 30 includes a swinging seat 31 and a plurality of convex arms 32 to 35. The swinging seat 31 is swingably disposed on the top surface of the base 10. The convex arms 32 to 35 are disposed outside the swinging seat 31 and are respectively located Waiting above the piston valves 21~24. More specifically, the swinging seat 31 includes a body 311 and a ball joint 312. The body 311 defines a small diameter connecting hole 3111. The top surface of the base 10 is provided with a socket 12 and a ball joint 312. The ball body 3121 includes a ball body 3121 and a column body 3122. The ball body 3121 is swingably disposed on the socket 12. The column body 3122 protrudes from the ball body 3121 and is inserted into the small diameter assembly hole 3111 of the body 311 of the swing seat 31. 31 can be arbitrarily oscillated with respect to the base 10; in the embodiment, a recessed portion 13 is recessed in the middle of the top surface of the base 10, and a body 14 is protruded in the middle of the recessed portion 13, and the socket 12 is disposed at the center of the base 14. The gas passages 11 surround the circumference of the recessed portion 13; further, the convex arms 32 to 35 are radially arranged. In the preferred embodiment, the pressure plate 30 has a total of four convex arms 32 to 35, two of which The extending directions of the convex arms 32, 34 are parallel to each other and are exactly on the same straight line by the axis of the body 311 of the swinging seat 31, and the extending directions of the other two convex arms 33, 35 are parallel to each other and pass through the body of the swinging seat 31. The axis of 311 is just on the same line, so the platen 30 is generally X-shaped; In the embodiment, the extending directions of the two convex arms 32, 34 may be only parallel to each other but not through the axis of the body 311 of the swinging seat 31, but not in the same straight line, and the extending directions of the other two convex arms 33, 35 Alternatively, they may be parallel to each other but not through the axis of the body 311 of the swinging seat 31, but not on the same straight line. It should be noted that the number and arrangement of the convex arms are not limited thereto. The number of the convex arms can be adjusted according to the actual number of operating modes of the hydraulic power tools, and the arrangement of the convex arms can be arbitrarily according to the needs of the user. Variety. The convex arms 32 to 35 respectively include an arm portion 321 , 331 , 341 , 351 and a pressing block 322 , 332 , 342 , 352 . The arm portions 321 , 331 , 341 , 351 are disposed on the body of the swinging seat 31 . The outer side wall of the 311 is adjacent to the bottom of the body 311 of the swinging seat 31 and defines a continuous hole 3211, 3311, 3411, 3511; the pressing blocks 322, 332, 342, 352 respectively include a head 3221, 3321, 3421 3521 and a rod portion 3222, 3322, 3422, 3522; the rod portions 3222, 3322, 3422, and 3522 of the pressing blocks 322, 332, 342, and 352 are interposed in the arm portions 321, 331, 341, and 351 In the holes 3211, 3311, 3411, 3511, the heads 3221, 3321, 3421, and 3521 of the pressing blocks 322, 332, 342, and 352 are disposed on the rod portions 3222, 3322 of the pressing blocks 322, 332, 342, and 352. One end of the 3422, 3522 and the outer diameter are larger than the through holes 3211, 3311, 3411, 3511 of the arm portions 321, 331 , 341 , 351 , and thus are located in the through holes 3211 of the arm portions 321 , 331 , 341 , 351 , respectively . , 3311, 3411, 3511 and above the piston valves 21~24.

The guiding structure 40 is disposed on the base 10 and defines a shaft hole 41 and a plurality of guiding grooves 42-45. The guiding grooves 42-45 surround the shaft hole 41, and are all communicated with the shaft hole 41, and are respectively correspondingly convex. Arm 32~35. More specifically, the guiding structure 40 includes a guiding seat 401 and a plurality of supporting portions 402. The guiding seat 401 defines the shaft hole 41 and the guiding grooves 42-45. The guiding grooves 42-45 are arranged radially. In the preferred embodiment, the guiding seat 401 defines a total of four guiding grooves 42-45, wherein the two guiding grooves 42, 44 extend in parallel with each other and pass through the axis of the shaft hole 41 just in the same line. The extending directions of the other two guiding grooves 43, 45 are parallel to each other and are exactly on the same straight line through the axis of the shaft hole 41, so the combination of the guiding grooves 42-45 and the shaft hole 41 is X-shaped; In the embodiment, the extending directions of the two guiding grooves 42 and 44 may be only parallel to each other but not through the axis of the shaft hole 41 and not in the same straight line, and the other two guiding grooves 43 and 45 may extend only in the same direction. Parallel to each other but not through the axis of the shaft hole 41 and not on the same line; it should be noted that the number and arrangement of the guide grooves depend on the number and arrangement of the arms, not limited thereto, and will be described first. The support portion 402 is disposed between the guiding seat 401 and the base 10; the guiding seat 401 and the supporting portions The portion 402 is configured to surround an accommodating space 403. The swinging seat 31 is located in the accommodating space 403. The arms 321 , 331 , 341 , and 351 of the convex arms 32 535 are swung from the outer side wall of the body 311 of the swinging seat 31 . The bottom of the body 311 of the seat 31 extends laterally beyond the accommodating space 403. Preferably, each support portion 402 extends from the outer side wall of the guide seat 401 downwardly away from the guide seat 401 through the arms 321 , 331 , 341 , 351 of the two convex arms 32 355 . The space is to the top surface of the base 10. Further, the top surface of the base 10 is provided with a plurality of fixing bases 15, each of which is located between the openings 111 of the top surface of the base 10 of the two gas flow passages 11; Each of the support portions 402 includes an extension portion 4021 and a latch 4022. Each extension portion 4021 includes a first plate body 40211, a second plate body 40212, a third plate body 40213, and a fourth plate body 40214. The first plate body 40211 and the second plate body 40212 extend laterally downward from the outer side wall of the guiding seat 401 away from the guiding seat 401 and are tapered, and the third plate body 40213 is guided from the guiding seat 401. The bottom surface of the outer side wall extends downward and the front side surface thereof is in contact with the rear side surfaces of the first board body 40211 and the second board body 40212, and the fourth board body 40214 is away from the bottom surface of the third board body 40213 toward the guiding seat 401. And extending a top surface of the first plate body 40211 and the second plate body 40212 and opening a through hole on a side away from the guiding seat 401; the pins 4022 respectively include a head 40221 and a rod The portion 40222 of the pins 4022 passes through the through holes and is inserted into the jacks 151. The outer diameter of the head 40221 of the latch 4022 is larger than the jacks 151 and located outside the jacks 151 and in the first board 40211, the second board 40212, the third board 40213, and the fourth board 40214. In the space of the enclosure. Thereby, the support portions 402 are fixed to the base 10 without affecting the swing of the pressure plate 30.

The operating lever 50 passes through the shaft hole 41 of the guiding structure 40 and is coupled to the swinging seat 31. Specifically, the operating lever 50 includes a head 51, a rod portion 52 and a sleeve 53. The body 311 of the swinging seat 31 defines a large diameter connecting hole 3112, and the rod portion 52 of the operating rod 50 passes through the guiding seat. The shaft hole 41 of the 401 is inserted into the large diameter assembly hole 3112 of the body 311 of the swing seat 31; the head 51 of the operation lever 50 is disposed at one end of the rod portion 52 of the operation lever 50; and the sleeve 53 of the operation lever 50 is provided. It is outside the rod portion 52 of the operating lever 50 and is close to the head portion 51 of the operating lever 50.

The limiting member 60 is disposed on the operating rod 50 and movable between a locked position and an unlocked position. Specifically, the limiting member 60 includes an outer sleeve 61, an inner sleeve 62 and an elastic member 63. The outer sleeve 61 defines a shaft hole 611. The inner sleeve 62 extends through the shaft hole 611 of the outer sleeve 61. A portion is exposed outside the shaft hole 611 of the outer sleeve 61. The inner sleeve 62 defines a large diameter shaft hole 621 and a small diameter shaft hole 622. The inner wall surfaces of the large and small diameter shaft holes 621 and 622 of the inner sleeve 62 are There is a connecting wall 623, and the rod portion 52 of the operating rod 50 extends through the large diameter shaft hole 621 and the small diameter shaft hole 622 of the inner sleeve 62, and the sleeve 53 of the operating rod 50 extends into the small diameter of the inner sleeve 62. The shaft hole 622; the elastic member 63 is disposed on the small diameter shaft hole 622 of the inner sleeve 62, and the two ends thereof respectively abut against the bottom surface of the sleeve 53 of the operating rod 50 and the large and small diameter shaft holes 621 of the inner sleeve 62, A connecting wall 623 between 622. Preferably, the outer periphery of the outer sleeve 61 protrudes from the first outer ring protrusion 612, and the outer side of the outer sleeve 62 protrudes from the outer side of the outer sleeve 622. The bottom surface of the second outer ring protrusion 622 abuts against the first outer ring. The top surface of the protrusion 612.

Referring to FIG. 1 , FIG. 3 and FIG. 4 , when the limiting member 60 is in the locking position, the inner sleeve 62 of the limiting member 60 is inserted into the shaft hole 41 of the guiding seat 401 , and the rod portion 52 of the operating rod 50 is restricted. The inner sleeve 62 of the bit member 60 is restricted from entering any of the guide grooves 42 to 45, so that the rod portion 52 of the operating lever 50 cannot drive the swing seat 31 to be yawed. Thereby, the creation is in a locked state, and the operating lever 50 can be restrained by the limiting member 60 when not in use without arbitrarily swinging relative to the base 10 along any one of the guiding slots 42-45, thereby preventing the user from accidentally touching. The operation of the lever 50 causes the hydraulic power tool to operate suddenly, reducing the accident of the work safety and reducing the risk of the damage of the hydraulic power tool and the surrounding people, thereby improving the safety of the creation.

5A, FIG. 5B and FIG. 5C, FIG. 5A is a perspective view of the unlocked state of the pneumatic operating device of the present invention, FIG. 5B is a side view of the unlocked state of the pneumatic operating device of the present invention, and FIG. 5C is a pneumatic operation of the present creation. A cross-sectional view of the unlocked state of the device. When the user's hand grasps the first outer ring protrusion 612 of the outer sleeve 61 of the limiting member 60 upwardly, the outer sleeve 61 can drive the inner sleeve by pushing against the second outer ring protrusion 624 of the inner sleeve 62. The tube 62 is moved up along the stem portion 52 of the operating lever 50 to the unlocked position, and the inner sleeve 62 thus disengages from the shaft hole 41 of the guide seat 401 and compresses the elastic member 63. Thereby, the present creation is in an unlocked state, and the lever portion 52 of the operating lever 50 can freely swing along any one of the guide grooves 42 to 45 and can drive the swinging seat 31 to be yawed.

Referring to FIG. 6A, FIG. 6B and FIG. 6C, FIG. 6A is a view showing that the operating lever of the pneumatic operating device of the present invention swings along one of the guide grooves to drive the swinging seat to a side of the swinging seat and presses one of the convex arms thereof. FIG. 6B is a perspective view of the lower piston valve, FIG. 6B is a piston valve of the pneumatic operating device of the present invention, which is swayed along one of the guide grooves to drive the swinging seat to one side of the swinging seat and press one of the convex arms against the piston valve. A side view of Fig. 6C is a cross-sectional view of the piston valve of the pneumatic operating device of the present invention, which is swayed along one of the guide grooves to drive the swinging seat to one side of the yaw and press one of the convex arms against the piston valve. When the lever portion 52 of the operating lever 50 swings along one of the guide grooves 45 and drives the swinging seat 31 to yaw toward one side thereof, the head portion 3521 of the pressing block 352 corresponding to one of the convex arms 35 of one of the guide grooves 45 is pressed. The piston valve 24 underneath is moved to move one of the piston valves 24 located below one of the convex arms 35 downward to an open position for high pressure gas to pass through and supply to the pneumatic power unit, and the pneumatic power unit controls the hydraulic power tool Start one of the modes of operation. The heads 3221, 3321, and 3421 of the pressing blocks 322, 332, and 342 of the remaining convex arms 32 to 34 are kept at a distance from the corresponding piston valves 21 to 23, so that the piston valves 21 corresponding to the remaining convex arms 32 to 34 are provided. ~23 continues to remain in the closed position, and the pneumatic power unit controls the hydraulic power tool to continue to remain in other operating modes. Thereby, the guiding structure 40 can assist the operating rod 50 to precisely control the pressure plate 30 to press and open only one of the piston valves 21~24 at a time, thereby driving the pneumatic power device to control the hydraulic power tool to start only one operation at a time. The mode avoids the hydraulic power tool to start multiple operating modes at the same time and loses control, improving the control precision and safety of the creation.

When the user's hand releases the operating lever 50, one of the piston valves 24 is automatically moved back to the closed position by being pushed up by the high-pressure gas from the pneumatic power source in the corresponding gas flow passage 111, and the force is completely exhausted. . At the same time, when the elastic member 63 of the limiting member 60 is pushed downward by the elastic force of the inner sleeve 62 of the limiting member 60 along the rod portion 52 of the operating rod 50, the inner sleeve 62 of the limiting member 60 is driven. The outer sleeve 61 of the bit member 60 is moved down to the locked position, and the creation thus returns to the locked state.

Please refer to FIG. 7. FIG. 7 is a perspective view of the air pressure operating device of the present invention with a dust jacket. In order to prevent the foreign matter from affecting the operation of the creation, the pneumatic operating device of the present invention further includes a dust jacket 70, the opening 111 of the gas flow passage 11 covering the top surface of the base 10, and the piston valves 21 to 24 protruding. The portion of the opening 111 of the gas flow path 11, the pressure plate 30, the guiding structure 40, the portion 52 of the operating rod 50 exposed to the inner sleeve 62 of the limiting member 60, and the inner sleeve of the limiting member 60 The tube 62 is exposed to a portion of the outer sleeve 61 of the stopper 60 and a lower portion of the outer sleeve 61 of the stopper 60. The material of the dust jacket 70 has a certain elastic deformation capability, such as rubber, so that the movement smoothness of the operating rod 50 and the limiting member 60 is not affected.

The above description is only a preferred embodiment for explaining the present creation, and is not intended to impose any form of restriction on the creation, so that any modification or change related to the creation under the same creative spirit is provided. , should still be included in the scope of this creative intent.

10‧‧‧ Pedestal
11‧‧‧ gas flow path
111‧‧‧ openings
12‧‧‧ socket
13‧‧‧Depression
14‧‧‧ body
15‧‧‧ fixed seat
151‧‧‧ jack
21~24‧‧‧Pneumatic valve
30‧‧‧ Platen
31‧‧‧Swing
311‧‧‧ Ontology
3111‧‧‧ small diameter hole
3112‧‧‧ Large diameter hole
312‧‧‧Ball type universal joint
3121‧‧‧ sphere
3122‧‧‧Cylinder
32~35‧‧‧Bulge arm
321, 331, 341, 351 ‧ ‧ arm
3211, 3311, 3411, 3511‧‧
322, 332, 342, 352‧‧ ‧ press block
3221, 3321, 3421, 3521‧‧ head
3222, 3322, 3422, 3522‧‧‧ pole
40‧‧‧Guide structure
401‧‧‧ guide seat
402‧‧‧Support
4021‧‧‧Extension
40211‧‧‧First board
40212‧‧‧Second plate
40213‧‧‧ Third plate
40214‧‧‧Fourth plate
4022‧‧‧Latch
40221‧‧‧ head
40222‧‧‧ Rod
403‧‧‧ accommodating space
41‧‧‧Axis hole
42~45‧‧‧ Guide slot
50‧‧‧Operator
51‧‧‧ head
52‧‧‧ pole
53‧‧‧ sleeve
60‧‧‧Limited parts
61‧‧‧Outer casing
611‧‧‧Axis hole
612‧‧‧First outer ring convex
62‧‧‧Inner casing
621‧‧‧ Large diameter shaft hole
622‧‧‧Small diameter shaft hole
623‧‧‧Connecting wall
624‧‧‧Second outer ring convex
63‧‧‧Flexible parts
70‧‧‧Leather cover

Figure 1 is a perspective view of the pneumatic operating device of the present invention. Figure 2 is an exploded view of the pneumatic operating device of the present invention. Figure 3 is a side elevational view of the pneumatic operating device of the present invention. Figure 4 is a cross-sectional view of the pneumatic operating device of the present invention. Fig. 5A is a perspective view showing an unlocked state of the pneumatic operating device of the present invention. Fig. 5B is a side view showing the unlocked state of the pneumatic operating device of the present invention. Fig. 5C is a cross-sectional view showing the unlocked state of the pneumatic operating device of the present invention. Fig. 6A is a perspective view of the piston valve of the pneumatic operating device of the present invention, which is pivoted along one of the guide grooves to drive the swinging seat to one side of the swinging seat and presses one of the convex arms against the piston valve. Figure 6B is a side elevational view of the piston valve of the pneumatic operating device of the present invention, which is pivoted along one of the guide slots to drive the swinging seat to one side of the swinging seat and press one of the convex arms against the piston valve. Fig. 6C is a cross-sectional view showing the piston valve of the pneumatic operating device of the present invention, which is swayed along one of the guide grooves to drive the swinging seat to one side of the swinging seat and press one of the convex arms against the piston valve. Fig. 7 is a perspective view showing the addition of a dust jacket to the pneumatic operating device of the present invention.

10‧‧‧ Pedestal

111‧‧‧ openings

23, 24‧‧‧ piston valve

321, 331, 341, 351 ‧ ‧ arm

401‧‧‧ Guide seat

402‧‧‧Support

4021‧‧‧Extension

40211‧‧‧First board

40212‧‧‧Second plate

40213‧‧‧ Third plate

40214‧‧‧Fourth plate

42~45‧‧‧ Guide slot

50‧‧‧Operator

51‧‧‧ head

53‧‧‧ sleeve

61‧‧‧Outer casing

62‧‧‧Inner casing

Claims (10)

A pneumatic operating device comprising: a base for opening a plurality of gas flow passages; a plurality of piston valves respectively disposed in the gas flow passages and being driven by high pressure gas from a pneumatic power source in the gas flow passages a pressing plate includes a swinging seat and a plurality of convex arms, the swinging seat is swingably disposed on a top surface of the base, and the convex arm rings are disposed outside the swinging seat and respectively located at the bottom a guiding structure is disposed on the base and defines a shaft hole and a plurality of guiding grooves. The guiding grooves surround the shaft hole, and are all communicated with the shaft hole, and respectively corresponding to the convex And an operating rod passing through the shaft hole of the guiding structure and coupled to the swinging seat; wherein, when the operating rod swings along one of the guiding grooves and drives the swinging seat to yaw one side thereof, corresponding One of the guide arms of one of the guide grooves presses one of the piston valves located below the one of the piston valves to move one of the piston valves below one of the convex arms downward to an open position for the high pressure gas to pass through and supply to a pressure Force means projecting arm rest is kept at a distance corresponding to the piston valve, the piston valve remaining projections corresponding arms remain in a closed position. The pneumatic operating device of claim 1, further comprising a limiting member disposed on the operating lever and movable between a locked position and an unlocked position, when the limiting member is in the locked position, The limiting member is inserted into the shaft hole of the guiding structure, and the operating rod is restricted by the limiting member and cannot enter any one of the guiding grooves, so that the operating rod cannot drive the swinging seat yaw, when the limiting member is located at the When the position is unlocked, the limiting member is disengaged from the shaft hole of the guiding structure, and the operating rod is free to swing along any one of the guiding grooves and can drive the swinging seat yaw. The pneumatic operating device of claim 2, wherein the operating rod comprises a head, a rod portion and a sleeve, the rod portion of the operating rod passes through the shaft hole of the guiding structure and is coupled to a swinging seat, the head of the operating rod is disposed at one end of the rod portion of the operating rod, the sleeve of the operating rod is disposed outside the rod portion of the operating rod and adjacent to the head of the operating rod; wherein the limit The positional member includes an outer sleeve, an inner sleeve and an elastic member, the outer sleeve defines a shaft hole, the inner sleeve is inserted through the shaft hole of the outer sleeve and defines a large diameter shaft hole and a small diameter shaft hole. a connecting wall is formed between the inner wall surfaces of the large and small diameter shaft holes of the inner sleeve, and the rod portion of the operating rod extends through the large diameter shaft hole and the small diameter shaft hole of the inner sleeve, and the sleeve of the operating rod The barrel extends into the small diameter shaft hole of the inner sleeve, the elastic member is disposed on the small diameter shaft hole of the inner sleeve and the two ends thereof respectively abut against the bottom surface of the sleeve of the operation rod and the inner sleeve a connecting wall between the small-diameter shaft holes; wherein, when the limiting member is in the locking position, the inner sleeve of the limiting member is inserted a shaft hole of the guiding structure, the rod portion of the operating rod is restricted by the inner sleeve of the limiting member and cannot enter any one of the guiding grooves, so that the rod portion of the operating rod cannot drive the swinging seat yaw; When the outer and inner sleeves of the limiting member move up along the rod portion of the operating rod to the unlocking position, the inner sleeve of the limiting member is disengaged from the shaft hole of the guiding structure and compresses the limiting member. The elastic member is configured such that the rod portion of the operating rod can swing freely along any one of the guiding grooves and can drive the swinging seat yaw; wherein, when the elastic member of the limiting member pushes the inside of the limiting member by its elastic force When the sleeve moves downward along the rod portion of the operating rod, the inner sleeve of the limiting member drives the outer sleeve of the limiting member to move down to the locking position. The pneumatic operating device of claim 3, wherein the outer circumference of the outer sleeve protrudes from a first outer ring, and the outer side of the inner sleeve protrudes from a second outer ring, the second outer ring. The convex bottom surface abuts against the top surface of the first outer ring protrusion. The pneumatic operating device of claim 3, further comprising a dust jacket covering the openings of the gas flow passages covering the top surface of the base, the piston valves protruding from the openings of the gas flow passages a portion of the pressure plate, the guiding structure, a portion of the rod of the operating rod exposed to the inner sleeve of the limiting member, and an inner sleeve of the limiting member exposed to the outer sleeve of the limiting member And a lower portion of the outer sleeve of the limiting member. The pneumatic operating device of claim 1, wherein the guiding structure comprises a guiding seat and a plurality of supporting portions, the guiding seat opening the shaft hole and the guiding grooves, wherein the supporting portions are disposed on Between the guiding seat and the base, the guiding seat and the supporting portion together define an accommodating space, the oscillating seat is located in the accommodating space, and the convex arms are close to the outer side wall of the oscillating seat The bottom portion extends laterally beyond the accommodating space. The air pressure operating device according to claim 6, wherein each support portion extends downward from the outer side wall of the guide seat in a direction away from the guide seat through a space between the two convex arms to The top surface of the base. The pneumatic operating device of claim 7, wherein the top surface of the base is provided with a plurality of fixing seats, each of the fixing seats being located between the openings of the top surfaces of the bases Each of the fixing bases has a socket, and the supporting portions respectively include an extending portion and a latch, each extending portion includes a first plate body, a second plate body, a third plate body and a fourth plate body, The first and second plates respectively extend laterally downward from the outer side wall of the guiding seat in a direction away from the guiding seat and are tapered, and the third plate body is from the bottom surface of the outer side wall of the guiding seat Extending downwardly and a front side thereof is in contact with a rear side of the first and second plates, the fourth plate extends laterally from a bottom surface of the third plate body away from the guide seat and has a top surface thereof a through hole is formed in a side of the bottom surface of the first and second plates, and a hole is formed on a side away from the guiding seat. The pins respectively include a head portion and a rod portion, and the rod portions of the pins pass through the through holes The holes are inserted into the jacks, and the outer diameters of the heads of the pins are larger than the jacks and are located at the jacks Outside and in the space surrounded by the first, second, third, and fourth plates. The pneumatic operating device of claim 1, wherein the swinging seat comprises a body and a ball joint, and the arm ring is disposed on an outer side wall of the body, the body opening a large diameter group a connecting hole and a small diameter connecting hole, the operating rod includes a rod portion, the rod portion is inserted into the large diameter group connecting hole, the spherical universal joint comprises a sphere and a cylinder, and the top of the base A socket is disposed on the surface, and the ball is swingably disposed on the socket. The cylinder protrudes from the ball and is inserted into the small diameter hole. The pneumatic operating device of claim 9, wherein the convex arms respectively comprise an arm portion and a pressing block, and the arm portions are disposed on an outer side wall of the body of the swinging seat adjacent to the swinging seat. The bottom of the body and the respective holes are respectively formed. The pressing blocks respectively comprise a head portion and a rod portion. The rod portions of the pressing blocks are inserted into the through holes of the arm portions, and the heads of the pressing blocks are The portion is disposed at one end of the rod portion of the pressing block and has an outer diameter larger than the through holes of the arm portions, and thus is located outside the through holes of the arm portions and above the piston valves.