Summary of the invention
In view of this, it is an object of the invention to, it is provided that a kind of pneumatic valve device and pneumatic tongs, to solve the problems referred to above.
Embodiments provide a kind of pneumatic valve device, described pneumatic valve device include cylinder barrel, the first lid, second
Lid, valve rod assembly, first piston assembly and the second piston component.
The lid diapire of described first lid offers the first through hole, and described first cover cap is together in one end of described cylinder barrel.
Being internally provided with of the lid diapire of described second lid is installed with space, and the lid diapire of described second lid offers even
Be installed with space and the second through hole of external environment condition and the first passage described in Tong, described second cover cap together in described cylinder barrel away from
One end of described first lid, the inside that the lid diapire of described second lid is further opened with being installed with described in connection space and cylinder barrel is empty
Between the second passage.
Described valve rod assembly is installed with space and one end is embedded in described second through hole can be from described second described in being arranged at
Through hole extends to external environment condition, described valve rod assembly can described be installed with space in move so that described first passage and
Two passages connect or block the connection between described first passage and the second passage.
Described first piston assembly is provided with multiple, and multiple described first piston assemblies are set in turn in the interior of described cylinder barrel
Portion, the gas entering described cylinder barrel from described second passage can promote the formation of multiple described first piston assembly to link and past
The position of described first lid is moved.
Described second piston component is arranged at the inside of described cylinder barrel and one end extends to external rings from described first through hole
Border, under the promotion of described first piston assembly, described second piston component can move toward the direction away from described second lid
Dynamic.
Further, described valve rod assembly includes valve rod and is arranged at the push rod of described valve rod one end, and described push rod is embedded in
Described second through hole and external environment condition can be extended to from described second through hole.
Described pneumatic valve device also includes being installed with the handle of movement, institute in space described for controlling described valve rod assembly
State handle be arranged at described second lid and can move to extrude described push rod.
Further, the length direction of described second through hole is the radial direction of described second lid, described first passage and
The length direction of the second passage is the axial of described second lid, and the middle part of described valve rod offers annular groove, described hands
Handle extrude described push rod, it is possible to make described valve rod annular groove groove in space respectively with described first passage and second lead to
Pore connects, to connect described first passage and the second passage.
Further, the lid diapire of described second lid is further opened with described in connection being installed with the 3rd of space and external environment condition
Passage, the length direction of described 3rd passage is the axial of described second lid, in the groove of the annular groove of described valve rod
Space can connect with described second passage and the 3rd passage respectively, to connect described second passage and the 3rd ventilation
Hole.
Further, described pneumatic valve device also includes that pneumatic tube joint, described pneumatic tube joint are arranged at described second
Lid and be positioned at the position of described first passage, and/or, described pneumatic valve device also includes deafener, described deafener
It is arranged at described second lid and is positioned at the position of described 3rd passage.
Further, described first piston assembly includes first piston and be arranged at described first piston side first lives
Stopper rod, described first piston bar is near described first lid, and described first piston is near described second lid, described first piston
Assembly is provided through the 4th passage of described first piston and first piston bar, two adjacent described first piston assemblies
Fourth hole connection, described first piston bar offers the five-way of the inner space connecting described 4th passage and cylinder barrel
Pore, described 5th passage is opened in the position away from described first piston.
Inside that described pneumatic valve device also includes being arranged at described cylinder barrel and with described first piston assembly one_to_one corresponding
Baffle assembly, described baffle assembly includes that shelf, described dividing plate offer via and be sheathed on described first piston bar, from institute
State the 4th passage enter described cylinder barrel gas described first piston assembly can be promoted to move so that described first piston and
Air chamber is formed between baffle assembly.
Further, described second piston component includes the second piston and be arranged at described second piston side second lives
Stopper rod.Described pneumatic valve device also includes the base of the carrier head offering rod aperture, and described base of the carrier head is embedded in described first through hole, institute
Stating the second piston and be arranged at first piston bar, described second piston rod extends to external environment condition through described rod aperture, described
Second piston rod is tapered piston bar.
Further, described pneumatic valve device also includes that bumper, described bumper are arranged at adjacent two described
Between one piston component and described second piston component and the described first piston assembly adjacent with described second piston component
Between.
Another preferred embodiment of the present invention additionally provides a kind of pneumatic tongs, and described pneumatic tongs includes binding clip assembly and pneumatic operated valve
Device, described pneumatic valve device includes cylinder barrel, the first lid, the second lid, valve rod assembly, first piston assembly and the second piston
Assembly, described binding clip assembly is arranged at described first lid.
The lid diapire of described first lid offers the first through hole, and described first cover cap is together in one end of described cylinder barrel.
Being internally provided with of the lid diapire of described second lid is installed with space, and the lid diapire of described second lid offers even
Be installed with space and the second through hole of external environment condition and the first passage described in Tong, described second cover cap together in described cylinder barrel away from
One end of described first lid, the inside that the lid diapire of described second lid is further opened with being installed with described in connection space and cylinder barrel is empty
Between the second passage.
Described valve rod assembly is installed with space and one end is embedded in described second through hole can be from described second described in being arranged at
Through hole extends to external environment condition, described valve rod assembly can described be installed with space in move so that described first passage and
Two passages connect or block the connection between described first passage and the second passage.
Described first piston assembly is provided with multiple, and multiple described first piston assemblies are set in turn in the interior of described cylinder barrel
Portion, the gas entering described cylinder barrel from described second passage can promote the formation of multiple described first piston assembly to link and past
The position of described first lid is moved.
Described second piston component is arranged at the inside of described cylinder barrel and one end extends to external rings from described first through hole
Border, under the promotion of described first piston assembly, described second piston component can move toward the direction away from described second lid
Dynamic.
Further, described binding clip assembly includes the first pressing plate, the second pressing plate, the first binding clip and the second binding clip, described
One pressing plate and the second pressing plate are parallel, and are arranged at described first lid, and described first binding clip and the second binding clip are hingedly connected to institute
Stating between the first pressing plate and the second pressing plate, one end that described second piston component extends to external environment condition is positioned at described first binding clip
With second between binding clip.
Pneumatic valve device described in the embodiment of the present invention and pneumatic tongs, be provided with valve in the space that is installed with of described second lid
Bar assembly, realizes air inlet by the movement of described valve rod assembly, solves ball sealer and ruptures that weaken with spring force cannot resilience
Phenomenon, enhance the sealing property of described pneumatic valve device and pneumatic tongs and also increase described pneumatic valve device and pneumatic tongs
Service life.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe wholely.Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Generally
Can with various different configurations arrange and design with the assembly of the embodiment of the present invention that illustrate described in accompanying drawing herein.Cause
This, be not intended to limit claimed invention to the detailed description of the embodiments of the invention provided in the accompanying drawings below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, broadly falls into the scope of protection of the invention.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
Refer to Fig. 1 and Fig. 2, embodiments provide a kind of pneumatic valve device 100, described pneumatic valve device 100
Including cylinder barrel the 110, first lid the 120, second lid 130, valve rod assembly 140, first piston assembly 150 and the second piston component
160.Alternatively, in the present embodiment, described cylinder barrel 110 offers multiple steam vent 111 for aerofluxus.
Incorporated by reference to refering to Fig. 3, the lid diapire of the first lid 120 offers the first through hole 121, and described first lid 120 covers
One end together in described cylinder barrel 110.
Incorporated by reference to refering to Fig. 4 and Fig. 5, being internally provided with of lid diapire of described second lid 130 is installed with space, and described
The lid diapire of two lids 130 offers the second through hole 131 and the first passage being installed with space and external environment condition described in connection
132, described second lid 130 is covered on described cylinder barrel 110 one end away from described first lid 120, described second lid 130
Lid diapire be further opened with being installed with described in connection second passage 133 of inner space of space and cylinder barrel 110.Described pneumatic
During the use of valve gear 100, described first passage 132 is used for installing pneumatic tube.Furthermore, it is necessary to explanation, described
Being installed with space can be that the strip hole that cross section is circular describes and sets space, it is also possible to describes for the strip hole that cross section is rectangle and sets sky
Between.In the present embodiment, described in be installed with space be that the strip hole that cross section is circular describes and sets space.
Described valve rod assembly 140 is installed with space and one end is embedded in described second through hole 131 can be from institute described in being arranged at
State the second through hole 131 and extend to external environment condition, described valve rod assembly 140 can described be installed with space in move so that described
One passage 132 and the second passage 133 connect or block the company between described first passage 132 and the second passage 133
Logical.
Described first piston assembly 150 is provided with multiple, and multiple described first piston assemblies 150 are set in turn in described cylinder
The inside of cylinder 110, the gas entering described cylinder barrel 110 from described second passage 133 can promote multiple described first piston
Assembly 150 forms linkage and the position toward described first lid 120 is moved.In the present embodiment, described first piston assembly 150 sets
It is equipped with three groups.It should be noted that the quantity that arranges of described first piston assembly 150 can also be for other.
Described second piston component 160 is arranged at the inside of described cylinder barrel 110 and one end extends from described first through hole 121
To external environment condition, under the promotion of described first piston assembly 150, described second piston component 160 can be toward away from described second
The direction of lid 130 is moved.
Incorporated by reference to refering to Fig. 6, alternatively, described valve rod assembly 140 includes valve rod 141 and is arranged at described valve rod 141 1
The push rod 142 of end, described push rod 142 is embedded in described second through hole 131 and can extend to external rings from described second through hole 131
Border.In order to strengthen air-tightness, in the present embodiment, described valve rod 141 is installed with spatial match with described, such as, is installed with sky when described
Between for cross section be circular strip hole describe set space time, it is identical with the described diameter being installed with space that described valve rod 141 is diameter
Or the cylinder-shaped valve rod 141 of infinite approach.
Alternatively, described pneumatic valve device 100 also includes being installed with in space described for controlling described valve rod assembly 140
The handle 170 of movement, as depicted in figs. 1 and 2, described handle 170 is arranged at described second lid 130 and can move with extruding
Described push rod 142.
Alternatively, the length direction of described second through hole 131 is the radial direction of described second lid 130, described first ventilation
The length direction of hole 132 and the second passage 133 is the axial of described second lid 130, and the middle part of described valve rod 141 offers
Annular groove 1411, push rod 142 described in the pressing of described handle 170, it is possible in making the groove of annular groove 1411 of described valve rod 141
Space connects with described first passage 132 and the second passage 133 respectively, to connect described first passage 132 and second
Passage 133.
In order to strengthen exhaust efficiency, in the present embodiment, the lid diapire of described second lid 130 is further opened with as shown in Figure 5
Connection described in be installed with the 3rd passage 134 of space and external environment condition, the length direction of described 3rd passage 134 is described
Second lid 130 axial, in the groove of the annular groove 1411 of described valve rod 141 space can respectively with described second passage
133 connect with the 3rd passage 134, to connect described second passage 133 and the 3rd passage 134.
It should be noted that in the present embodiment, the overall structure symmetrical of described second lid 130, described second lid
The direction of the central shaft being axially described second lid 130 of body 130, i.e. common with central shaft direction.Described second lid
Axial radial and normal to described second lid 130 of body 130, the radius of the most described second lid 130 or the direction of diameter.
Alternatively, the central axis of the central shaft of described second passage 133 and described second lid 130, described the
One passage 132 lays respectively at two orientation that the position of described second passage 133 is relative with described 3rd passage 134.
In the present embodiment, alternatively, described pneumatic valve device 100 also includes the pneumatic tube joint 180 shown in Fig. 1 and Fig. 2,
Described pneumatic tube joint 180 is arranged at described second lid 130 and is positioned at the position of described first passage 132.When described
When pneumatic valve device 100 includes pneumatic tube joint 180, pneumatic tube is i.e. mountable to described pneumatic tube joint 180.Alternatively, institute
State pneumatic valve device 100 and also include that the deafener 190 shown in Fig. 1 and Fig. 2, described deafener 190 are arranged at described second lid
130 and be positioned at the position of described 3rd passage 134.
Referring to Fig. 7, when described push rod 142 is not by External Force Acting, described valve rod 141 makes near described second through hole 131
Obtain described second passage 133 to be connected by described annular groove 1411 with the 3rd passage 134, or described push rod 142 is subject to
Having arrived slight External Force Acting, described push rod 142 promotes described valve rod 141 to move toward the direction away from described second through hole 131
But block the connection between described second passage 133 and the 3rd passage 134, now, institute insufficient for described valve rod 141
State pneumatic valve device 100 and be in unused state or exhaust condition, if described pneumatic valve device 100 is in exhaust condition,
A part of gas of the inside of the cylinder barrel 110 shown in Fig. 2 just can be installed with sky described in described second passage 133 again process
Between discharge from described 3rd passage 134.
Referring to Fig. 8, when described push rod 142 is by External Force Acting, described push rod 142 promotes described valve rod 141 toward remote
Move from the direction of described second through hole 131, when described annular groove 1411 part simultaneously with described second passage 133 and the
When one passage 132 connects, described second passage 133 connects with the first passage 132, now, and described pneumatic valve device 100
It is in air-suction state, is installed on the gas in the pneumatic tube of described pneumatic tube joint 180 and just can pass through described first passage
132 again through described in be installed with space and enter the inside of the cylinder barrel 110 shown in Fig. 2 from described second passage 133.
It should be noted that for the ease of the maintenance of described valve rod assembly 140 or replacing, alternatively, described second lid
The position away from described second through hole 131 of 130 is further opened with the through hole greater diameter than described valve rod assembly 140, institute
The nut cap 135 being installed with space it is provided with described in seal in stating through hole.
Refer to Fig. 9, in order to strengthen the air-tightness of described valve rod assembly 140, alternatively, outside described valve rod assembly 140
Enclose and be further opened with multiple groove, be provided with in described groove for increasing bubble-tight first sealing ring 143.
Referring to Figure 10 and Figure 11, described first piston assembly 150 includes first piston 151 and is arranged at described first work
Fill in the first piston bar 152 of 151 sides.Alternatively, described first piston 151 is in disk form.In the present embodiment, described first lives
Stopper rod 152 is near the first lid 120 shown in Fig. 2, and described first piston 151 is near the second lid 130 shown in Fig. 2.Described
First piston assembly 150 is provided through the 4th passage 153 of described first piston 151 and first piston bar 152, adjacent
The fourth hole connection of two described first piston assemblies 150.Described first piston bar 152 offers described 4th ventilation of connection
5th passage 1521 of the inner space of hole 153 and cylinder barrel 110, described 5th passage 1521 is opened in away from described first
The position of piston 151.Alternatively, described first piston 151 is provided with the first piston bar 152 that is adjacent for clamping
First buckling groove 1511, described first buckling groove 1511 structure ringwise and be arranged at the periphery of described 4th passage 153.
It should be noted that described first piston 151 and first piston bar 152 can be by modes such as threaded engagement even
Two absolute construction connect, it is also possible to for integral type structure.In the present embodiment, described first piston 151 and first piston bar 152
For integral type structure, effectively avoid owing to first piston 151 and first piston bar 152 get rusty and cause described first piston
151 and the perpendicularity first piston 151 bad, described of first piston bar 152 and first piston bar 152 thrust are unstable and institute
State the appearance of the situations such as aerofluxus has some setbacks in cylinder barrel 110.
Alternatively, described first piston assembly 150 also includes that the second sealing ring 154, described second sealing ring 154 are arranged at
The periphery of described first piston 151 is to increase the air-tightness of described pneumatic valve device 100.In order to extend described pneumatic valve device
In the service life of 100, alternatively, described first piston assembly 150 also includes the first wear ring 155, described first wear ring 155
It is arranged at the peripheral position away from described first piston bar 152 of described first piston 151.
Incorporated by reference to refering to Figure 12 and Figure 13, inside that described pneumatic valve device 100 also includes being arranged at described cylinder barrel 110 and
With described first piston assembly 150 baffle assembly 210 one to one.Described baffle assembly 210 includes dividing plate 211, alternatively,
Described dividing plate 211 is disc dividing plate 211.Described dividing plate 211 offers via 2111 and is sheathed on the first piston shown in Fig. 2
Bar 152, the gas entering described cylinder barrel 110 from described 4th passage 153 can promote described first piston assembly 150 to move
So that forming air chamber between described first piston 151 and baffle assembly 210.For the ease of aerofluxus, alternatively, described via 2111
Aperture slightly larger than the diameter of described first piston bar 150, but it should be recognized that the aperture of described via 2111 and described the
Difference between the diameter of one piston rod 150 is infinitely small.
Alternatively, the periphery of described dividing plate 211 is arranged with O 212.Alternatively, the peripheral setting of described via 2111
There is dust ring 213, to reach the purpose of dust seal.
Referring to Figure 14 and Figure 15, described second piston component 160 includes that the second piston 161 is lived with being arranged at described second
Fill in the second piston rod 162 of 161 sides.Alternatively, described second piston 161 is in disk form, and described second piston rod 162 is in cone
Shape.
It should be noted that described second piston 161 and the second piston rod 162 can be by modes such as threaded engagement even
Two absolute construction connect, it is also possible to for integral type structure.
Alternatively, described second piston 161 is provided with the second clamping of the first piston bar 152 being adjacent for clamping
Groove 1611, described second buckling groove 1611 structure ringwise.
In the present embodiment, described second piston component 160 also includes that the 3rd sealing ring 163, described 3rd sealing ring 163 set
It is placed in the periphery of described second piston 161 to increase the air-tightness of described pneumatic valve device 100.In order to extend described pneumatic operated valve dress
Putting the service life of 100, alternatively, described second piston component 160 also includes the second wear ring 164, described second wear ring
The 164 peripheral positions away from described second piston rod 162 being arranged at described second piston 161.
Incorporated by reference to refering to Figure 16, Figure 17 and Figure 18, alternatively, described pneumatic valve device 100 also includes offering piston rod
The base of the carrier head 220 in hole 221, described base of the carrier head 220 is embedded in the first through hole 121 being opened in the first lid 120 shown in Fig. 3.
In the present embodiment, described second piston 161 is arranged at first piston bar 152, and described second piston rod 162 is through described piston rod
Hole 221 extends to external environment condition.In the present embodiment, the periphery of described second piston rod 162 is additionally provided with the spring for resetting
230, described spring 230 is connected between described second piston 161 and described base of the carrier head 220.
Alternatively, described base of the carrier head 220 is provided with binding clip assembly installation portion 222, and described binding clip assembly installation portion 222 is offered
There is the binding clip assembly installing hole 2221 for mounting clamp head assembly 500.Described base of the carrier head 220 is embedded in and is opened in shown in Fig. 3
After in first through hole 121 of one lid 120, described binding clip assembly installation portion 222 is positioned at the outside of described cylinder barrel 110.
It should be noted that in the present embodiment, described binding clip assembly installation portion 222 may be used for installing binding clip assembly, cutting
Cutter head assembly or clamp pliers assembly etc., to form the utensils such as pneumatic tongs, pneumatic scissors or pneumatic dog pincers.
By above-mentioned setting, as shown in figure 17, it is in unused state or exhaust condition when described pneumatic valve device 100
Time, incorporated by reference to refering to Fig. 7, the second passage 133 and the 3rd passage 134 of described second lid 130 are described by being opened in
The annular groove 1411 of valve rod 141 connects, and is positioned in the first piston assembly 150 set gradually of described cylinder barrel 110
First piston assembly 150 near described second lid 130 contacts with described second lid 130.Described baffle assembly 210 and institute
State first piston assembly 150 one_to_one corresponding, when in the first piston assembly 150 set gradually be positioned at described cylinder barrel 110
When the first piston assembly 150 of described second lid 130 contacts with described second lid 130, described baffle assembly 210 overlaps
It is located at one end of the first piston bar 152 of corresponding first piston assembly 150 and away from corresponding first piston
151.Now, the peripheral spring 230 of described second piston rod 162 it is sheathed in the raw.
It should be noted that described baffle assembly 210 is changeless in the position within described cylinder barrel 110.In order to
Preferably stablizing described baffle assembly 210 in the position within described cylinder barrel 110, alternatively, described pneumatic valve device 100 also wraps
Including back-up ring group 240, described back-up ring group 240 is provided with multipair, and every pair of back-up ring group 240 is arranged at the interior of described cylinder barrel 110 at equal intervals
Portion, every pair of back-up ring group 240 includes that two back-up rings being spaced 241, described baffle assembly 210 are arranged at the two of a pair back-up ring group 240
Between individual back-up ring 241, to reach to stablize the effect of described baffle assembly 210.
Alternatively, described pneumatic valve device 100 also includes regulating ring 250, and described regulation ring 250 is arranged at described cylinder barrel
The periphery of 110, between described first lid 120 and the second lid 130 and near described first lid 120.
Equally, as shown in figure 18, when described pneumatic valve device 100 is in use state, i.e. push rod 142 shown in Fig. 8
Described valve rod 141 is promoted to move to described annular groove 1411 toward the direction away from described second through hole 131 by External Force Acting
Part connects with described second passage 133 and the first passage 132 simultaneously, so that described second passage 133 and the
When one passage 132 connects, it is installed on the gas in the pneumatic tube of described pneumatic tube joint 180 and just can lead to by described first
It is installed with space described in pore 132 process again and finally enters the inside of described cylinder barrel 110 from described second passage 133.
Hereafter, enter a part of gas push within described cylinder barrel 110 to live near the first of described second lid 130
Plug assembly 150 moves toward the direction of described first lid 120, enters the entrance of another part gas within described cylinder barrel 110 and opens
Be located in the 4th passage 153 of the first piston assembly 150 of described second lid 130, enter be opened near
A part of gas in 4th passage 153 of the first piston assembly 150 of described second lid 130 enter be opened in next the
4th passage 153 of one piston component 150, enters and is opened in the first piston assembly 150 near described second lid 130
The 4th passage 153 in another part gas by described 5th passage 1521 enter be arranged at its first piston bar
To promote next first piston between peripheral baffle assembly 210 and the first piston 151 of next first piston component of 152
Assembly 150 moves toward the direction of described first lid 120.Finally, since the effect of thrust gas, multiple described first piston groups
Form linkage between part 150 and promote described second piston component 160 to move toward described first lid 120 direction.Now, sheathed
Peripheral spring 230 in described second piston rod 162 is in compressive state.
After releasing External Force Acting, described push rod 142 drives described valve rod 141 toward the direction of described second through hole 131
Mobile so that described valve rod 141 blocks the connection between described second passage 133 and the first passage 132 and makes institute
State the second passage 133 to connect with the 3rd passage 134.Now, under the restoring force effect of described spring 230, promote described
Two piston components 160 move toward the direction near described second lid 130, and a part of gas in described cylinder barrel 110 is by opening
The steam vent 111 being located at described cylinder barrel 110 is discharged, and another part gas in described cylinder barrel 110 passes through described 5th passage
1521 enter described 4th passage 153, and are opened in described second lid 130 by described second passage 133 entrance
It is installed with space and finally discharges from described 3rd passage 134.
In order to extend the service life of described pneumatic valve device 100, alternatively, described pneumatic valve device 100 also includes preventing
Hitting pad 260, described bumper 260 is arranged between adjacent two described first piston assembly 150 and described second piston
Between assembly 160 and the described first piston assembly 150 adjacent with described second piston component 160.By described bumper 260
Arrange and effectively avoid between two described first piston assemblies 150 and described second piston component 160 and with described
Collide between the described first piston assembly 150 that second piston component 160 is adjacent and cause the situation of components damage to occur.
Referring to Figure 19, Figure 20 and Figure 21, another preferred embodiment of the present invention provides a kind of pneumatic tongs 10, described pneumatic
Pincers 10 include binding clip assembly 500 and above-mentioned pneumatic valve device 100.
In the present embodiment, described binding clip assembly 500 includes first pressing plate the 510, second pressing plate the 520, first binding clip 530 and
Two binding clips 540, described first pressing plate 510 is parallel with the second pressing plate 520, and is arranged at described first lid 120, described first pincers
530 and second binding clip 540 be hingedly connected between described first pressing plate 510 and the second pressing plate 520, described second piston component
160 extend to one end of external environment condition between described first binding clip 530 and the second binding clip 540.When described pneumatic valve device
100 when including base of the carrier head 220, and described binding clip assembly 500 is arranged at described base of the carrier head 220.Specifically, described binding clip assembly 500
By connecting, described first pressing plate 510 and the second pressing plate 520 are arranged at described base of the carrier head 220.
Described first binding clip 530 can be arranged at described first pressing plate 510 and second by the set-up mode of shaft hole matching
Pressing plate 520, described second binding clip 540 can be arranged at described first pressing plate 510 and second by the set-up mode of shaft hole matching
Pressing plate 520.Described first binding clip 530 can be arranged at described first pressing plate 510 and second by the set-up mode that screw connects
Pressing plate 520, described second binding clip 540 can be arranged at described first pressing plate 510 and second by the set-up mode that screw connects
Pressing plate 520.In the present embodiment, the phenomenon that cannot normally work in order to avoid described first binding clip 530 and the second binding clip 540 goes out
Existing, described first binding clip 530 is arranged at described first pressing plate 510 and the second pressing plate 520, institute by the set-up mode of shaft hole matching
State the second binding clip 540 and be arranged at described first pressing plate 510 and the second pressing plate 520 by the set-up mode of shaft hole matching.
When described pneumatic tongs 10 is in unused state or exhaust condition, described pneumatic valve device 100 is in such as Figure 17
Shown state, now, described first binding clip 530 and second is taken the lead and is in open configuration.When described handle 170 is by outer masterpiece
With, toward described valve rod assembly 140 direction pressing so that described push rod 142 promotes described valve rod 141 toward away from described second through hole
When the direction of 131 is moved, described pneumatic valve device 100 is in state as shown in figure 18, now, described second piston component
160 move toward the direction of described first lid 120, promote the first roller structure 550 and the second roller knot of described binding clip assembly
Structure 560 so that described first binding clip 530 is in closure state.After releasing External Force Acting, described pneumatic valve device 100 is extensive
Multiple to state as shown in figure 17 so that described first binding clip 530 and second is taken the lead and is in open configuration.
In sum, the pneumatic valve device 100 described in the embodiment of the present invention and pneumatic tongs 10, at described second lid 130
The space that is installed be provided with valve rod assembly 140, realize air inlet by the movement of described valve rod assembly 140, solve ball sealer break
Split with spring 230 elastic force weaken cannot the phenomenon of resilience, enhance described pneumatic valve device 100 and the sealing property of pneumatic tongs 10
Also described pneumatic valve device 100 and the service life of pneumatic tongs 10 are increased.
Further, due to the pneumatic valve device 100 described in the embodiment of the present invention and the first piston bar 151 of pneumatic tongs 10
It is integral type structure with first piston 1562, effectively avoids owing to first piston 151 and first piston bar 152 get rusty and make
The perpendicularity first piston 151 bad, described and the first piston bar 152 that become described first piston 151 and first piston bar 152 push away
The appearance of the situations such as aerofluxus has some setbacks in the unstable and described cylinder barrel 110 of power.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " arrange ",
" connect " and should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected.Can be
It is mechanically connected, it is also possible to be electrical connection.Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal.For the ordinary skill in the art, can understand that above-mentioned term is in the present invention with concrete condition
In concrete meaning.
In describing the invention, it should be noted that term " on ", " top ", " end ", " interior ", the side of the instruction such as " outward "
Position or position relationship are based on orientation shown in the drawings or position relationship, or the side usually put when this invention product uses
Position or position relationship, be for only for ease of and describe the present invention and simplify description rather than instruction or the assembly of hint indication or unit
Part must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.This
Outward, term " first ", " second ", " the 3rd " etc. are only used for distinguishing and describe, and it is not intended that indicate or hint relative importance.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.