CN110332169A - Air operated reversing valve - Google Patents
Air operated reversing valve Download PDFInfo
- Publication number
- CN110332169A CN110332169A CN201910750263.7A CN201910750263A CN110332169A CN 110332169 A CN110332169 A CN 110332169A CN 201910750263 A CN201910750263 A CN 201910750263A CN 110332169 A CN110332169 A CN 110332169A
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- Prior art keywords
- spool
- valve
- venthole
- air flue
- sealing ring
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Links
- 238000009434 installation Methods 0.000 claims abstract description 71
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000003780 insertion Methods 0.000 claims abstract description 33
- 230000037431 insertion Effects 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 137
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 18
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Check Valves (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to a kind of air operated reversing valves, it includes valve body, the first spool, the second spool and control device, first spool is placed in the first valve core installation cavity of valve body, the insertion section of second spool is protruded into the second air flue of the first spool, until the first spool and valve body are seated on the pedestal of the second spool, the first spool and the connection of the second spool；The control device includes the first valve rod, first valve rod is arranged in the control device installation cavity of the second spool, towards third air flue, the tail portion of the first valve rod passes through to be formed outside control device installation cavity and pushes the first valve stem seal convenient for user or dredge the press section of third air flue on the head of first valve rod.User touches the first valve rod, first valve rod blocks the third air flue of the second spool, and the pedestal that ambient atmos flow in air operated reversing valve and the movement of the first spool is pushed to be seated at the second spool pushes the first spool mobile by the pressure by ambient atmos, reach labour-saving purpose, realizes air-flow switching.
Description
Technical field
The present invention relates to a kind of air operated reversing valves.
Background technique
Currently, the body of a gun of pneumatic nail gun on the market is provided with the shell for installing air operated reversing valve, present gas nail
When the shell processing of rifle, first by reamer from shell left end toward housing cavity aperture, then by reamer from shell right end toward shell
Inner cavity aperture is easy to cause the center of circle degree of housing cavity different since reamer carries out aperture in two times, therefore air operated reversing valve
Situations such as component is mounted on housing cavity, is easy to cause poor sealing performance, leaks air, product qualification rate is low, and pneumatically changes
It needs to be packed into housing cavity from shell left end, shell right end respectively to valve, installation is sufficiently complex, and existing air operated reversing valve
The gas that firmly buckle is just adjustable air operated reversing valve is needed to commutate, poor user experience.
Summary of the invention
The purpose of the present invention is to provide a kind of airflow direction that adjustment air operated reversing valve is driven using air pressure, installation letters
It is single, it is laborsaving, using a kind of air operated reversing valve of the coaxial telescoping manner assembling of multilayer.
The object of the present invention is achieved like this:
A kind of air operated reversing valve, including valve body, the first spool, the second spool and control device, the valve body are up and down
Valve body, body cavity forms the first air flue, and body cavity is provided with the first valve core installation cavity, the external wall of upper portion of the valve body
It is equipped at intervals with the first venthole along its circumferencial direction, the middle part outer wall of the valve body is equipped at intervals with the second ventilation along its circumferencial direction
The lower part outer wall in hole, the valve body is equipped at intervals with third venthole along its circumferencial direction；
First spool is spool up and down, and the first valve core cavity forms the second air flue, and the first spool outer wall is along its circle
Circumferential direction is equipped at intervals with the 4th venthole；
The top of second spool is insertion section, and the lower part of the second spool is pedestal, and the insertion section is provided with third air flue, institute
Stating base intracavity is control device installation cavity, and control device installation cavity is connected to third air flue, and the surface of pedestal is positioned at slotting
The periphery for entering portion is equipped at intervals with the 5th venthole, and the side wall of pedestal is equipped at intervals with the 5th venthole of connection and control along its circumferencial direction
6th venthole of device installation cavity processed；
First spool is placed in the first valve core installation cavity of valve body, and the first spool is protruded into the insertion section of second spool
In second air flue, until the first spool and valve body are seated on the pedestal of the second spool, the first spool and the connection of the second spool；
The control device includes the first valve rod, and first valve rod is arranged in the control device installation cavity of the second spool, institute
The head of the first valve rod is stated towards third air flue, the tail portion of the first valve rod passes through to be formed outside control device installation cavity and push away convenient for user
Dynamic first valve stem seal or the press section for dredging third air flue.
The present invention, the original state of air operated reversing valve are third air flue of first valve rod far from the second spool, ambient atmos
It is flowed in air operated reversing valve and the first spool is pushed to act the pedestal far from the second spool, pass through the pressure by ambient atmos
It pushes the first spool mobile, reaches labour-saving purpose, and ambient atmos are expelled in air operated reversing valve along the first blow vent
Cylinder, the gas in cylinder are expelled in air operated reversing valve along the second blow vent；
When user touches the first valve rod, the first valve rod blocks the third air flue of the second spool, and ambient atmos are in air operated reversing valve
The pedestal for flowing and the movement of the first spool being pushed to be seated at the second spool, by pushing the first spool to move by the pressure of ambient atmos
It is dynamic, reach labour-saving purpose, and ambient atmos are expelled in cylinder in air operated reversing valve along the second blow vent, in cylinder
Gas is expelled in air operated reversing valve along the first blow vent, is realized air-flow switching, is operated very simple.
Moreover, the valve body of air operated reversing valve, the first spool, the second spool and control device are placed in shell with Superimposed
Chamber enables air operated reversing valve installation stronger, and reduces the volume of air operated reversing valve, and the space for enabling air operated reversing valve occupy is more
It is small, improve the practicability of air operated reversing valve.
The purpose of the present invention can also be solved using following technical measures:
As more specific scheme, the head of first valve rod is conical head, and the tail portion of the first valve rod is columned presses
Splenium, the user push press section, and the conical head of the first valve rod is enabled to stretch out or leave third air flue, thus sealing or dredging
Third air flue.The head of first valve rod is conical head, and conical head is inserted into third air flue inner close fitting third air flue inner wall
Third air flue is sealed, due to using conical head, the better effect of the first valve stem seal third air flue is enabled, improves air operated reversing valve
Practicability.
It further include the first bottom cover as more specific scheme, first bottom cover is provided with passed through convenient for the first valve rod
One valve stem passage, first bottom cover seal the control device installation cavity of the second spool, and the tail portion of first valve rod passes through the
One valve stem passage, which is stretched out outside control device installation cavity, forms the press section.
As more specific scheme, the control device further includes valve seat, is provided with the 7th venthole, valve at the top of the valve seat
Seat side wall is provided with the 8th venthole, and the control of the second spool is arranged in the 7th venthole and the connection of the 8th venthole, the valve seat
In device installation cavity, the 7th venthole is connected to third air flue, and the 8th venthole is connected to the 6th venthole, first valve rod
Head protrude into or leave the 7th venthole, for sealing or dredging the 7th venthole.Described to have additional valve seat, the valve seat is
Plastic seat, valve seat top are provided with the 7th venthole, and valve seat wall is provided with the 8th ventilation bucket, and the valve seat is placed in control device peace
In behaveing affectedly, the 7th venthole is connected to third air flue, and the 8th venthole is connected to the 6th venthole, since valve seat is plastic valve
Seat, since valve seat is plastic seat, since plastics have elasticity, the head of the first valve rod is inserted into the 6th venthole of valve seat,
Completely plugged 6th venthole in the head of first valve rod simultaneously seals the 6th venthole, greatly improves the leakproofness of air operated reversing valve.
As more specific scheme, the body cavity is additionally provided with the second valve core installation cavity, and first spool is placed in
In first valve core installation cavity, the second spool is placed in the second valve core installation cavity, realizes valve body, the first spool and the assembling of the second spool
Form Integral pneumatic reversal valve.First spool is placed in the first valve core installation cavity, and the second spool is placed in the second spool peace
In behaveing affectedly, realize that valve body, the first spool and the second spool assemble to form Integral pneumatic reversal valve, by Integral pneumatic reversal valve
Installation can be completed in the housing cavity of insertion pneumatic nail gun, installs very simple, avoids the spare and accessory parts of installation more, improves installation
Efficiency, user's self-maintain pneumatic nail gun are very easy.
As more specific scheme, the valve body periphery that the valve body is located above the first venthole is provided with the first sealing
Circle, the valve body periphery that valve body is located at below the first venthole are provided with the second sealing ring, are located at the first sealing ring and the second sealing
Valve body between circle forms the 4th air flue, and first venthole and the connection of the 4th air flue, the valve body are located at the second venthole
The valve body periphery of lower section is provided with third sealing ring, and the valve body between the second sealing ring and third sealing ring forms the 5th gas
Road, second venthole and the connection of the 5th air flue, the valve body periphery that the valve body is located at below third venthole are provided with the
Four sealing rings form the 6th air flue, the 4th venthole and the 6th gas positioned at the valve body of third sealing ring and the 4th sealing ring
Road connection.The valve body is installed on housing cavity, and the first sealing ring, the second sealing ring and the 4th sealing ring are tightly attached in shell
Chamber improves the leakproofness of air operated reversing valve.
As more specific scheme, first spool top is provided with the 5th sealing ring and the 6th sealing ring, is located at the
The first spool between five sealing rings and the 6th sealing ring forms the 7th air flue, and first spool lower part is located at third venthole
Top is provided with the 7th sealing ring, is provided with the first buffering on the first spool between the 6th sealing ring and the 7th sealing ring
Circle, the first spool lower part, which is located at below third venthole, is provided with the 8th sealing ring, is located at the 7th sealing ring and the 8th sealing ring
Between the first spool formed the 8th air flue, the 4th venthole and the 8th air flue connection.First spool is installed on valve
In vivo, the 5th sealing ring, the 6th sealing ring, the 7th sealing ring and the 8th sealing ring are tightly attached to body cavity, improve pneumatic commutation
The leakproofness of valve.
As more specific scheme, up and down, the inner cavity of insertion section forms the third gas for the inner cavity of the insertion section
The insertion section in road, second spool is provided with the 9th sealing ring and the tenth sealing ring, is located at the 9th sealing ring and the tenth sealing
The second spool between circle forms the 9th air flue, and the susceptor surface of second spool is provided with the second bumper ring, the second spool
Pedestal be located above the 5th venthole and be provided with the 11st sealing ring, the pedestal of the second spool is located at the 5th venthole lower section and sets
It is equipped with the 12nd sealing ring, the second spool between the 11st sealing ring and the 12nd sealing ring forms the tenth air flue, and described the
Six ventholes and the tenth air flue are connected to, and are provided with third bumper ring in the control device installation cavity of second spool.Described
The insertion section of two spools is inserted into the second air flue of the first spool, and the 9th sealing ring, the tenth sealing ring are close to the interior of the first spool
Wall, the 11st sealing ring and the 12nd sealing ring are close on the inner wall of the housing, improve the leakproofness of air operated reversing valve.
As more specific scheme, the inner cavity of the insertion section is provided with the third air flue, and third air flue front end is closed, the
Three air flue rear ends are connected to base intracavity, and the insertion section of the second spool is provided with the 9th sealing ring and the tenth sealing ring, is located at
The second spool between 9th sealing ring and the tenth sealing ring forms the 9th air flue, second spool being located on the 9th air flue
It is provided with the tenth venthole of connection third air flue, the susceptor surface of second spool is provided with the second bumper ring, the second spool
Pedestal be located above the 5th venthole and be provided with the 11st sealing ring, the pedestal of the second spool is located at the 5th venthole lower section and sets
It is equipped with the 12nd sealing ring, the second spool between the 11st sealing ring and the 12nd sealing ring forms the tenth air flue, and described the
Six ventholes and the tenth air flue are connected to, and are provided with third bumper ring in the control device installation cavity of second spool.The present invention
By changing the second spool, thus change the air inlet or exhaust of air inlet, exhaust outlet, the first blow vent and the second blow vent, from
And air inlet or the exhaust position of air operated reversing valve are adjusted, it enables air flue reversal valve meet different products and uses,
As more specific scheme, the control device be the second valve rod, second valve rod be the first valve rod of strip, second
The head diameter of valve rod is greater than the tail diameter of the second valve rod, and the head of the second valve rod is equipped with the 15th sealing ring and the
16 sealing rings.
It further include the second bottom cover as more specific scheme, second bottom cover is provided with passed through convenient for the second valve rod
Two valve stem passages, the second valve stem passage outer wall are provided with the 9th venthole of the second valve stem passage of connection, the second bottom cover insertion
In the control device accommodating cavity of second spool, the second valve stem passage connection of the third air flue and the second valve rod of the second spool, the
The 9th venthole connection of the 6th venthole and the second valve rod of two spools, second valve rod are placed in the second valve stem passage,
The tail portion of second valve rod, which is stretched out outside the second valve stem passage, forms the press section, and the head of the second valve rod is in the second valve stem passage
It slides, block third air flue or enables third air flue, the second valve stem passage, the 9th through-hole and the connection of the 6th venthole.
Beneficial effects of the present invention:
The present invention, the original state of air operated reversing valve are third air flue of second valve rod far from the second spool, and ambient atmos are in gas
The pedestal for flowing in dynamic reversal valve and the movement of the first spool being pushed to be seated at the second spool passes through the pressure promotion by ambient atmos
First spool is mobile, reaches labour-saving purpose, and ambient atmos are expelled to cylinder along the second blow vent in air operated reversing valve
Interior, the gas in cylinder is expelled in air operated reversing valve along the first blow vent；
When user touches the second valve rod, ambient atmos flow in air operated reversing valve and the first spool are pushed to act far from the second valve
The pedestal of core pushes the first spool mobile, reaches labour-saving purpose, and ambient atmos exist by the pressure by ambient atmos
It is expelled to cylinder along the first blow vent in air operated reversing valve, the gas in cylinder is expelled to air operated reversing valve along the second blow vent
It is interior, it realizes air-flow switching, operates very simple.
Beneficial effects of the present invention are as follows:
The present invention, the original state of air operated reversing valve are third air flue of first valve rod far from the second spool, and ambient atmos are in gas
It is flowed in dynamic reversal valve and the first spool is pushed to act the pedestal far from the second spool, pass through the pressure promotion by ambient atmos
First spool is mobile, reaches labour-saving purpose, and ambient atmos are expelled to cylinder along the first blow vent in air operated reversing valve,
Gas in cylinder is expelled in air operated reversing valve along the second blow vent；
When user touches the first valve rod, the first valve rod blocks the third air flue of the second spool, and ambient atmos are in air operated reversing valve
The pedestal for flowing and the movement of the first spool being pushed to be seated at the second spool, by pushing the first spool to move by the pressure of ambient atmos
It is dynamic, reach labour-saving purpose, and ambient atmos are expelled in cylinder in air operated reversing valve along the second blow vent, in cylinder
Gas is expelled in air operated reversing valve along the first blow vent, is realized air-flow switching, is operated very simple.
Moreover, the valve body of air operated reversing valve, the first spool, the second spool and control device are set with the coaxial telescoping manner of multilayer
It in housing cavity, enables air operated reversing valve installation stronger, and reduces the volume of air operated reversing valve, air operated reversing valve is enabled to occupy
Space is smaller, improves the practicability of air operated reversing valve.
Detailed description of the invention
Fig. 1 is pneumatic nail gun schematic diagram.Fig. 2 is the cross-sectional view of pneumatic nail gun.
Fig. 3 is pneumatic nail gun and air operated reversing valve assembling schematic diagram.
Fig. 4 is the air operated reversing valve schematic diagram (exhaust of the first blow vent) for being mounted on housing cavity of the embodiment of the present invention 1.
Fig. 5 is the air operated reversing valve schematic diagram (exhaust of the second blow vent) for being mounted on housing cavity of the embodiment of the present invention 1.
Fig. 6 is the air operated reversing valve installation diagram of the embodiment of the present invention 1.
Fig. 7 is the air operated reversing valve schematic diagram (exhaust of the first blow vent) for being mounted on housing cavity of the embodiment of the present invention 2.
Fig. 8 is the air operated reversing valve schematic diagram (exhaust of the second blow vent) for being mounted on housing cavity of the embodiment of the present invention 2.
Fig. 9 is the air operated reversing valve installation diagram of the embodiment of the present invention 2.
Figure 10 is air operated reversing valve schematic diagram (the first blow vent row for being mounted on housing cavity of the embodiment of the present invention 3
Gas).
Figure 11 is air operated reversing valve schematic diagram (the second blow vent row for being mounted on housing cavity of the embodiment of the present invention 3
Gas).
Figure 12 is the air operated reversing valve installation diagram of the embodiment of the present invention 3.
Figure 13 is Integral pneumatic reversal valve schematic diagram of the embodiment of the present invention 4 using 2 plane control device of embodiment.
Figure 14 is Integral pneumatic reversal valve installation diagram of the embodiment of the present invention 4 using 2 plane control device of embodiment.
Figure 15 is Integral pneumatic reversal valve schematic diagram of the embodiment of the present invention 5 using 3 plane control device of embodiment.
Figure 16 is Integral pneumatic reversal valve installation diagram of the embodiment of the present invention 5 using 3 plane control device of embodiment.
Figure 17 is the air operated reversing valve schematic diagram (vent) for being mounted on housing cavity of the embodiment of the present invention 6.
Figure 18 is the air operated reversing valve schematic diagram (air inlet exhaust) for being mounted on housing cavity of the embodiment of the present invention 6.
Figure 19 is the air operated reversing valve installation diagram of the embodiment of the present invention 6.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
Embodiment 1, in conjunction with shown in Fig. 1 to Fig. 6, a kind of pneumatic nail gun, the gun body 500 of the pneumatic nail gun is provided with shell 1, institute
It states shell 1 and is provided with air inlet 11, exhaust outlet 12, the first blow vent 13 and the second blow vent 14, the air inlet 11, exhaust outlet
12, the first blow vent 13 and the second blow vent 14 are connected to 1 inner cavity of shell respectively.
The air operated reversing valve includes valve body 2, the first spool 3, the second spool 4, control device and the first bottom cover 6.It is described
Valve body 2 is valve body 2 up and down, and 2 inner cavity of valve body forms the first air flue 101, and 2 inner cavity of valve body is provided with the first spool peace
It behave affectedly 200, the external wall of upper portion of the valve body 2 is equipped at intervals with the first venthole 21 along its circumferencial direction, outside the middle part of the valve body 2
Wall is equipped at intervals with the second venthole 22 along its circumferencial direction, and the lower part outer wall of the valve body 2 is equipped at intervals with along its circumferencial direction
Three ventholes 23.
2 periphery of valve body that the valve body 2 is located at 21 top of the first venthole is provided with the first sealing ring 24, and valve body 2 is located at
2 periphery of valve body of first venthole, 21 lower section is provided with the second sealing ring 25, is located at the first sealing ring 24 and the second sealing ring 25
Between valve body 2 form the 4th air flue 104, first venthole 21 be connected to the 4th air flue 104, and the valve body 2 is positioned at the
2 periphery of valve body of the lower section of two venthole 22 is provided with third sealing ring 26, be located at the second sealing ring 25 and third sealing ring 26 it
Between valve body 2 form the 5th air flue 105, second venthole 22 is connected to the 5th air flue 105, and the valve body 2 is located at third
2 periphery of valve body of 23 lower section of venthole is provided with the 4th sealing ring 27, positioned at the valve of third sealing ring 26 and the 4th sealing ring 27
Body 2 forms the 6th air flue 106, and the 4th venthole 31 is connected to the 6th air flue 106.
First spool 3 is spool up and down, and 3 inner cavity of the first spool forms the second air flue 102, the first spool 3
Outer wall is equipped at intervals with the 4th venthole 31 along its circumferencial direction, and 3 top of the first spool is provided with the 5th sealing ring 32 and
Six sealing rings 33, the first spool 3 between the 5th sealing ring 32 and the 6th sealing ring 33 forms the 7th air flue 107, described
First spool, 3 lower part, which is located above third venthole 23, is provided with the 7th sealing ring 34, and 3 lower part of the first spool is located at third ventilation
The 8th sealing ring 35 is provided with below hole 23, the first spool 3 formation between the 7th sealing ring 34 and the 8th sealing ring 35
8th air flue 108, the 4th venthole 31 are connected to the 8th air flue 108, moreover, being located at the 6th sealing ring 33 and the 7th sealing
The first bumper ring 36 is provided on the first spool 3 between circle 34.
The top of second spool 4 is insertion section 41, and the lower part of the second spool 4 is pedestal 42, and the insertion section 41 is
Insertion section 41 up and down, 41 inner cavity of insertion section form third air flue 103, and 42 inner cavity of pedestal is control device installation cavity
43, control device installation cavity 43 is connected to third air flue 103, and the surface of pedestal 42 be located at insertion section 41 periphery interval set
There is the 5th venthole 44, the side wall of pedestal 42 is equipped at intervals with the 5th venthole 44 of connection and control device installation along its circumferencial direction
6th venthole 45 of chamber 43 is provided in control device installation cavity 43 moreover, 42 surface of pedestal is provided with the second bumper ring 46
Third bumper ring 47.
The insertion section 41 of second spool 4 is provided with the 9th sealing ring 411 and the tenth sealing ring 412, and it is close to be located at the 9th
The second spool 4 between seal 411 and the tenth sealing ring 412 forms the 9th air flue 109, the pedestal of second spool 4 42
The 11st sealing ring 421 is provided with above the 5th venthole 44, the pedestal 42 of the second spool 4 is located at 44 lower section of the 5th venthole
It is provided with the 12nd sealing ring 422, the second spool 4 between the 11st sealing ring 421 and the 12nd sealing ring 422 forms the tenth
Air flue 110, the 6th venthole 45 are connected to the tenth air flue 110.
The control device is the first valve rod 5, and the head of first valve rod 5 is conical head, the tail portion of the first valve rod 5
For columned press section 10, the tail portion intersection of the head of first valve rod 5 and the first valve rod 5 is provided with the 13rd sealing
Circle 51.
First bottom cover 6 is provided with the 14th sealing ring 61, passes through moreover, the first bottom cover 6 is provided with convenient for the first valve rod 5
The first valve stem passage 62.
Air operated reversing valve is mounted in shell 1:
The valve body 2 is placed in 1 inner cavity of shell, the first sealing ring 24, the second sealing ring 25, the third sealing ring 26 and of valve body 2
Four sealing rings 27 are tightly attached to 1 inner wall of shell.
First spool 3 is placed in the first valve core installation cavity 200 of valve body 2, the 5th sealing ring 32 of the first spool 3,
6th sealing ring 33, the 7th sealing ring 34 and the 8th sealing ring 35 are tightly attached to 2 inner wall of valve body.
The insertion section 41 of second spool 4 is protruded into the second air flue 102 of the first spool 3, until the first spool 3 and valve
Body 2 is seated on the pedestal 42 of the second spool 4, and the first spool 3 is connected to the second spool 4.
The first base 42 is placed in shell 1, and first base 42 seals the control device installation cavity 43 of the second spool 4,
First valve rod 5 is placed in the first valve stem passage 62, and the conical head of the first valve rod 5 is towards third air flue 103, the first valve rod
5 tail portion, which is stretched out outside the first valve stem passage 62, forms press section 10.
The air driving reversing device and cylinder 100 connect, and the cylinder 100 includes cylinder body and piston rod 400, described pneumatic
First blow vent 13 of reversing arrangement is connected to cylinder body one end, and the second blow vent 14 of air flue reversing arrangement is connected to the cylinder body other end,
To make the first blow vent 13, cylinder body and 14 three of the second blow vent connection, so that piston rod 400 be pushed to act.
1 working principle of embodiment
The first valve rod 5 is not pressed:
First valve rod 5 is in original state, and for the conical head of the first valve rod 5 far from third air flue 103, ambient atmos pass through air inlet
Mouth 11 enters 1 inner cavity of shell, and ambient atmos are along 1 inner cavity of shell, the second air flue 102, third air flue 103, control device installation cavity
43 and the 6th venthole 45 be discharged the 5th venthole 44, through the 5th venthole 44 discharge ambient atmos push the first spool 3 move
It is dynamic, until the first spool 3 is resisted against on valve body 2, adjust the position of the first spool 3.
At this point, ambient atmos by air inlet 11 enter 1 inner cavity of shell, then along the first air flue 101, the 7th air flue 107,
First venthole 21, the 4th air flue 104 are discharged outside the first blow vent 13, push piston rod 400 to move subsequently into cylinder 100
It is dynamic.
Since piston rod 400 acts, piston rod 400 enters the gas of cylinder 100 in shell 1 along the second blow vent 14
Chamber, then along the 6th air flue 106, third venthole 23, the 8th air flue 108, the 4th venthole 31, the 9th air flue 109, four-way
Outside stomata 31, the 8th air flue 108, the second venthole 22 and the 6th air flue 106 discharge exhaust outlet 12.
Press the first valve rod 5:
The conical head insertion third air flue 103 of first valve rod 5 simultaneously seals third air flue 103, ambient atmos through air inlet 11 into
Enter 1 inner cavity of shell, ambient atmos push the first spool 3 to be seated on the pedestal 42 of the second spool 4, so as to adjust the first spool 3
Position.
At this point, ambient atmos enter 1 inner cavity of shell by air inlet 11, then along the second air flue 102, the 4th venthole
31, the 8th air flue 108, third venthole 23 and the 6th air flue 106 are discharged outside the second blow vent 14, subsequently into cylinder 100
Push piston rod 400 mobile.
Since piston rod 400 acts, piston rod 400 enters the gas of cylinder 100 in shell 1 along the first blow vent 13
Then chamber is discharged along the 4th air flue 104, the first venthole 21, the 7th air flue 107, the second venthole 22 and the 5th air flue 105 and arranges
Outside port 12.
Embodiment 2 combine Fig. 7 to Fig. 9, embodiment 2 the difference from embodiment 1 is that: the control device of embodiment 2 also wraps
Valve seat 7 is included, the valve seat 7 is plastic seat 7, and the 7th venthole 71 is provided at the top of valve seat 7, and 7 side wall of valve seat is provided with the 8th ventilation
Hole 72, the 7th venthole 71 are connected to the 8th venthole 72.
The valve seat 7 is arranged in the control device installation cavity 43 of the second spool 4, the 7th venthole 71 and third air flue
103 connections, the 8th venthole 72 are connected to the 6th venthole 45.
2 working principle of embodiment
When not pressing the first valve rod 5:
First valve rod 5 is in original state, and the conical head of the first valve rod 5 is far from the 7th venthole 71, thus far from third gas
Road 103, ambient atmos enter 1 inner cavity of shell by air inlet 11, and ambient atmos are along 1 inner cavity of shell, the second air flue 102, third
Air flue 103, third air flue 103, the 7th venthole 71, control device installation cavity 43, the 8th venthole 72,45 and of the 6th venthole
The connection of 5th venthole 44 pushes the movement of the first spool 3, adjusts the first valve so that ambient atmos are discharged through the 5th venthole 44
3 position of core.
At this point, ambient atmos by air inlet 11 enter 1 inner cavity of shell, then along the first air flue 101, the 7th air flue 107,
First venthole 21, the 4th air flue 104 are discharged outside the first blow vent 13, push piston rod 400 to move subsequently into cylinder 100
It is dynamic.
Since piston rod 400 acts, piston rod 400 enters the gas of cylinder 100 in shell 1 along the second blow vent 14
Chamber, then along the 6th air flue 106, third venthole 23, the 8th air flue 108, the 4th venthole 31, the 9th air flue 109, four-way
Outside stomata 31, the 8th air flue 108, the second venthole 22 and the 6th air flue 106 discharge exhaust outlet 12.
When pressing the first valve rod 5:
The conical head of first valve rod 5 blocks the 7th venthole 71, so that third air flue 103 is blocked, so that the first spool 3 is seated at
On the pedestal 42 of second spool 4,3 position of the first spool is adjusted.
At this point, ambient atmos enter 1 inner cavity of shell by air inlet 11, then along the second air flue 102, the 4th venthole
31, the 8th air flue 108, third venthole 23 and the 6th air flue 106 are discharged outside the second blow vent 14, subsequently into cylinder 100
Push piston rod 400 mobile.
Since piston rod 400 acts, piston rod 400 enters the gas of cylinder 100 in shell 1 along the first blow vent 13
Then chamber is discharged along the 4th air flue 104, the first venthole 21, the 7th air flue 107, the second venthole 22 and the 5th air flue 105 and arranges
Outside port 12.
Embodiment 3, in conjunction with Figure 10 to Figure 12, embodiment 3 the difference from embodiment 1 is that: embodiment 3 use the second valve rod
8 and second bottom cover 9.Second bottom cover 9 is provided with the second valve stem passage 91 passed through convenient for the second valve rod 8, the second valve stem passage
91 outer walls are provided with the 9th venthole 92 of the second valve stem passage 91 of connection, and second bottom cover 9 is inserted into the control dress of the second spool 4
It sets in installation cavity 43, the third air flue 103 of the second spool 4 is connected to the second valve stem passage 91 of the second valve rod 8, the second spool 4
The 6th venthole 45 be connected to the 9th venthole 92 of the second valve rod 8.
Second valve rod 8 is strip valve rod, and the head diameter of the second valve rod 8 is greater than the tail diameter of the second valve rod 8,
The head of second valve rod 8 is equipped with the 15th sealing ring 81 and the 16th sealing ring 82.Second valve rod 8 is placed in the second valve rod
In channel 91, the tail portion of the second valve rod 8, which is stretched out outside the second valve stem passage 91, forms the press section 10, the head of the second valve rod 8
It is slided in the second valve stem passage 91, block third air flue 103 or enables third air flue 103, the ventilation of the second valve stem passage the 91, the 9th
Hole 92 is connected to the 6th venthole 45.
3 working principle of embodiment
When not pressing the second valve rod 8:
Second valve rod 8 is in initial conditions, and the second valve rod 8 is far from third air flue 103 and seals the 9th venthole 92, to block
Third air flue 103 adjusts 3 position of the first spool so that the first spool 3 is seated on the pedestal 42 of the second spool 4.
At this point, ambient atmos enter 1 inner cavity of shell by air inlet 11, then along the second air flue 102, the 4th venthole
31, the 8th air flue 108, third venthole 23 and the 6th air flue 106 are discharged outside the second blow vent 14, subsequently into cylinder 100
Push piston rod 400 mobile.
Since piston rod 400 acts, piston rod 400 enters the gas of cylinder 100 in shell 1 along the first blow vent 13
Then chamber is discharged along the 4th air flue 104, the first venthole 21, the 7th air flue 107, the second venthole 22 and the 5th air flue 105 and arranges
Outside port 12.
When pressing the second valve rod 8:
Second valve rod 8 is close to third air flue 103 and dredges the 9th venthole 92, and ambient atmos enter shell 1 by air inlet 11
Inner cavity, ambient atmos are along 1 inner cavity of shell, the second air flue 102, third air flue 103, control device installation cavity 43, the 9th venthole
92, the 6th venthole 45 is discharged outside the 5th venthole 44, and the ambient atmos through the discharge of the 5th venthole 44 push the first spool 3 to move
It is dynamic, until the first spool 3 is resisted against on valve body 2, adjust the position of the first spool 3.
At this point, ambient atmos by air inlet 11 enter 1 inner cavity of shell, then along the first air flue 101, the 7th air flue 107,
First venthole 21, the 4th air flue 104 are discharged outside the first blow vent 13, push piston rod 400 to move subsequently into cylinder 100
It is dynamic.
Since piston rod 400 acts, piston rod 400 enters the gas of cylinder 100 in shell 1 along the second blow vent 14
Chamber, then along the 6th air flue 106, third venthole 23, the 8th air flue 108, the 4th venthole 31, the 9th air flue 109, four-way
Outside stomata 31, the 8th air flue 108, the second venthole 22 and the 6th air flue 106 discharge exhaust outlet 12.
Embodiment 4, in conjunction with Figure 13 and Figure 14, embodiment 4 the difference from embodiment 1 is that: in valve body 2 described in embodiment 4
Chamber is additionally provided with the second valve core installation cavity 300, and first spool 3 is placed in the first valve core installation cavity 200, and the second spool 4 is set
In in the second valve core installation cavity 300, realization valve body 2, the first spool 3 and the second spool 4 are using the coaxial telescoping manner assembling of multilayer
Integral pneumatic reversal valve is formed, air operated reversing valve is inserted into 1 inner cavity of shell, very simple is installed.
Moreover, embodiment 4 uses the control device of implementation 2, the valve seat 7 is placed in the control device peace of the second spool 4
It behave affectedly in 43, the first bottom cover 6 seals the control device installation cavity 43 of the second spool 4, and the first valve rod 5 passes through the of the first bottom cover 6
One valve stem passage 62,5 head of the first valve rod are protruded into control device installation cavity 43, and 5 tail portion of the first valve rod is stretched out outside the first bottom cover 6
Form press section 10.
Embodiment 5, in conjunction with shown in Figure 15 to Figure 16, embodiment 5 and the difference of embodiment 4 are, embodiment 5 is using implementation
The control device of example 3, second bottom cover 9 seal the control device installation cavity 43 of the second spool 4, and the second valve rod 8 passes through second
Valve stem passage 91,8 head of the second valve rod are protruded into control device installation cavity 43, are formed and are pressed outside 8 the first bottom cover of tail portion 6 of the second valve rod
Splenium 10.
Air operated reversing valve of the invention is on pneumatic nail gun or other pneumatic actuation equipment, will be pneumatic when assembling
The valve body 2 of reversal valve, the first spool 3, the second spool 4, control device and the first bottom cover 6 are sequentially loaded into the shell of air driving reversing device
Integral pneumatic reversal valve loading 1 inner cavity of shell is by 1 inner cavity of body if air operated reversing valve is integral type air operated reversing valve
Can, very simple is operated, installation is easy.
Embodiment 6, in conjunction with shown in Figure 17 to 18, embodiment 6 the difference from example 2 is that:
The top of second spool 4 is insertion section 41, and the lower part of the second spool 4 is pedestal 42, and 42 inner cavity of pedestal is control
Device installation cavity 43 processed, the inner cavity of the insertion section 41 are provided with third air flue 103, the closing of 103 front end of third air flue, third air flue
103 rear ends be connected to control device installation cavity 43, and the surface of pedestal 42 be located at insertion section 41 periphery be equipped at intervals with the 5th lead to
Stomata 44, the side wall of pedestal 42 are equipped at intervals with the of the 5th venthole 44 of connection and control device installation cavity 43 along its circumferencial direction
Six ventholes 45 are provided with third buffering moreover, 42 surface of pedestal is provided with the second bumper ring 46 in control device installation cavity 43
Circle 47.
The insertion section 41 of second spool 4 is provided with the 9th sealing ring 411 and the tenth sealing ring 412, and it is close to be located at the 9th
The second spool 4 between seal 411 and the tenth sealing ring 412 forms the 9th air flue 109, described to be located on the 9th air flue 109
Second spool 4 is provided with the tenth venthole 600 of connection third air flue 103, and the pedestal 42 of second spool 4 is located at the 5th ventilation
The 11st sealing ring 421 is provided with above hole 44, the pedestal 42 of the second spool 4, which is located at below the 5th venthole 44, is provided with the tenth
The second spool 4 between the 422, the 11st sealing ring 421 of two sealing rings and the 12nd sealing ring 422 forms the tenth air flue 110, institute
The 6th venthole 45 is stated to be connected to the tenth air flue 110.
6 working principle of embodiment
When not pressing the first valve rod 5: the first valve rod 5 is in original state, and the conical head of the first valve rod 5 is far from the 7th venthole
71, so that ambient atmos enter 1 inner cavity of shell by the second blow vent 14, and ambient atmos are along the 6th gas far from third air flue 103
Road 106, third venthole 23, the 8th air flue 108, the 4th venthole 31, the 7th air flue 107, the tenth venthole 600, third gas
Road 103, the 7th venthole 71, control device installation cavity 43, the 8th venthole 72, the 6th venthole 45 and the 5th venthole 44 connect
It is logical, so that ambient atmos are discharged through the 5th venthole 44, the movement of the first spool 3 is pushed, 3 position of the first spool is adjusted.
At this point, ambient atmos enter 1 inner cavity of shell by the second blow vent 14, then ventilate along the 6th air flue 106, third
Hole 23, the 8th air flue 108, the 4th venthole 31, the 7th air flue 107, the tenth venthole 600, third air flue the 103, the 4th are ventilated
Outside hole 31, the 8th air flue 108, the second venthole 22 and the 5th air flue 105 discharge exhaust outlet 12, subsequently into being pushed away in cylinder 100
Piston bar 400 is mobile.
Since piston rod 400 acts, the gas of cylinder 100 is entered 1 inner cavity of shell along air inlet 11 by piston rod 400, so
It is discharged outside the first blow vent 13 along the first air flue 101, the 7th air flue 107, the first venthole 21, the 4th air flue 104 afterwards.
When pressing the first valve rod 5: the conical head of the first valve rod 5 blocks the 7th venthole 71, to block third air flue
103, so that the first spool 3 is seated on the pedestal 42 of the second spool 4, adjust 3 position of the first spool.
At this point, ambient atmos enter 1 inner cavity of shell by the second blow vent 14, then ventilate along the 6th air flue 106, third
Air inlet is discharged in hole 23, the 8th air flue 108, the 4th venthole 31, the 7th air flue 107, the tenth venthole 600, the second air flue 102
It is mobile subsequently into piston rod 400 is pushed in cylinder 100 outside 11.
Since piston rod 400 acts, piston rod 400 is by the gas of cylinder 100 along exhaust outlet 12, the 5th air flue 105, second
Venthole 22, the 7th air flue 107, the first venthole 21, the 4th air flue 104 are discharged outside the first blow vent 13.
The present invention is by changing the second spool 4, to change air inlet 11, exhaust outlet 12, the first blow vent 13 and second
The air inlet or exhaust of blow vent 14 enable air flue reversal valve meet different to adjust air inlet or the exhaust position of air operated reversing valve
Product use, above-described embodiment 1 to 5 can by change 4 structure of the second spool, to change its air inlet or exhaust position.
Claims (11)
1. a kind of air operated reversing valve, including valve body, the first spool, the second spool and control device, it is characterised in that:
The valve body is valve body up and down, and body cavity forms the first air flue, and body cavity is provided with the first spool
The external wall of upper portion of installation cavity, the valve body is equipped at intervals with the first venthole, the middle part outer wall edge of the valve body along its circumferencial direction
Its circumferencial direction is equipped at intervals with the second venthole, and the lower part outer wall of the valve body is equipped at intervals with third ventilation along its circumferencial direction
Hole；
First spool is spool up and down, and the first valve core cavity forms the second air flue, and the first spool outer wall is along its circle
Circumferential direction is equipped at intervals with the 4th venthole；
The top of second spool is insertion section, and the lower part of the second spool is pedestal, and insertion section is provided with third air flue, the bottom
Seat inner cavity is control device installation cavity, and control device installation cavity is connected to third air flue, and the surface of pedestal is located at insertion section
Periphery be equipped at intervals with the 5th venthole, the side wall of pedestal is equipped at intervals with the 5th venthole of connection and control dress along its circumferencial direction
Set the 6th venthole of installation cavity；
First spool is placed in the first valve core installation cavity of valve body, and the first spool is protruded into the insertion section of second spool
In second air flue, until the first spool and valve body are seated on the pedestal of the second spool, the first spool and the connection of the second spool；
The control device includes the first valve rod, and first valve rod is arranged in the control device installation cavity of the second spool, institute
The head of the first valve rod is stated towards third air flue, the tail portion of the first valve rod passes through to be formed outside control device installation cavity and push away convenient for user
Dynamic first valve stem seal or the press section for dredging third air flue.
2. air operated reversing valve according to claim 1, it is characterised in that: the head of first valve rod is conical head, the
The tail portion of one valve rod is columned press section, and the user pushes press section, enable the conical head of the first valve rod stretch out or from
Third air flue is opened, thus sealing or dredging third air flue.
3. air operated reversing valve according to claim 1, it is characterised in that: further include the first bottom cover, first bottom cover is provided with
Convenient for the first valve stem passage that the first valve rod passes through, first bottom cover seals the control device installation cavity of the second spool, described
The tail portion of first valve rod passes through and forms the press section outside the first valve stem passage stretching control device installation cavity.
4. air operated reversing valve according to claim 1, it is characterised in that: the control device further includes valve seat, the valve seat
Top is provided with the 7th venthole, and valve seat wall is provided with the 8th venthole, the 7th venthole and the connection of the 8th venthole, the valve seat
It is arranged in the control device installation cavity of the second spool, the 7th venthole is connected to third air flue, and the 8th venthole and the 6th leads to
Stomata connection, the 7th venthole is protruded into or is left on the head of first valve rod, for sealing or dredging the 7th venthole.
5. air operated reversing valve according to claim 1, it is characterised in that: the body cavity is additionally provided with the installation of the second spool
Chamber, first spool are placed in the first valve core installation cavity, and the second spool is placed in the second valve core installation cavity, realize valve body, the
One spool and the second spool assemble to form Integral pneumatic reversal valve.
6. air operated reversing valve according to claim 1, it is characterised in that: the valve body is located at the valve body above the first venthole
Periphery is provided with the first sealing ring, and the valve body periphery that valve body is located at below the first venthole is provided with the second sealing ring, is located at the
Valve body between one sealing ring and the second sealing ring forms the 4th air flue, first venthole and the connection of the 4th air flue, described
The valve body periphery that valve body is located at below the second venthole is provided with third sealing ring, be located at the second sealing ring and third sealing ring it
Between valve body form the 5th air flue, second venthole and the connection of the 5th air flue, the valve body is located at third venthole lower section
Valve body periphery be provided with the 4th sealing ring, positioned at the valve body of third sealing ring and the 4th sealing ring formed the 6th air flue, it is described
4th venthole and the connection of the 6th air flue.
7. air operated reversing valve according to claim 1, it is characterised in that: first spool top is provided with the 5th sealing ring
With the 6th sealing ring, the first spool between the 5th sealing ring and the 6th sealing ring forms the 7th air flue, first valve
Core lower part, which is located above third venthole, is provided with the 7th sealing ring, first between the 6th sealing ring and the 7th sealing ring
It is provided with the first bumper ring on spool, the first spool lower part, which is located at below third venthole, is provided with the 8th sealing ring, is located at the
The first spool between seven sealing rings and the 8th sealing ring forms the 8th air flue, the 4th venthole and the connection of the 8th air flue.
8. air operated reversing valve according to claim 1, it is characterised in that: the inner cavity of the insertion section up and down, insertion section
Inner cavity form the third air flue, the insertion section of second spool is provided with the 9th sealing ring and the tenth sealing ring, is located at
The second spool between 9th sealing ring and the tenth sealing ring forms the 9th air flue, and the susceptor surface of second spool is provided with
Second bumper ring, the pedestal of the second spool, which is located above the 5th venthole, is provided with the 11st sealing ring, the pedestal of the second spool
It is provided with the 12nd sealing ring below the 5th venthole, the second spool between the 11st sealing ring and the 12nd sealing ring
Form the tenth air flue, the 6th venthole and the connection of the tenth air flue, setting in the control device installation cavity of second spool
There is third bumper ring.
9. air operated reversing valve according to claim 1, it is characterised in that: the inner cavity of the insertion section is provided with the third gas
It is close that road, the closing of third air flue front end, third air flue rear end connection base intracavity, and the insertion section of the second spool are provided with the 9th
Seal and the tenth sealing ring, the second spool between the 9th sealing ring and the tenth sealing ring form the 9th air flue, institute's rheme
The tenth venthole of connection third air flue, the susceptor surface setting of second spool are provided in the second spool on the 9th air flue
There is the second bumper ring, the pedestal of the second spool, which is located above the 5th venthole, is provided with the 11st sealing ring, the bottom of the second spool
Seat, which is located at below the 5th venthole, is provided with the 12nd sealing ring, the second valve between the 11st sealing ring and the 12nd sealing ring
Core forms the tenth air flue, the 6th venthole and the connection of the tenth air flue, sets in the control device installation cavity of second spool
It is equipped with third bumper ring.
10. air operated reversing valve according to claim 1, it is characterised in that: the control device be the second valve rod, described second
Valve rod is the first valve rod of strip, and the head diameter of the second valve rod is greater than the tail diameter of the second valve rod, and the second valve rod
Head is equipped with the 15th sealing ring and the 16th sealing ring.
11. air operated reversing valve according to claim 5, it is characterised in that: further include the second bottom cover, second bottom cover is provided with
Convenient for the second valve stem passage that the second valve rod passes through, the second valve stem passage outer wall is provided with the 9th ventilation of the second valve stem passage of connection
Hole, second bottom cover are inserted into the control device accommodating cavity of the second spool, the third air flue of the second spool and the second valve rod
The connection of second valve stem passage, the 9th venthole connection of the 6th venthole and the second valve rod of the second spool, second valve rod
It is placed in the second valve stem passage, the tail portion of the second valve rod, which is stretched out outside the second valve stem passage, forms the press section, the second valve rod
Head is slided in the second valve stem passage, is blocked third air flue or is enabled third air flue, the second valve stem passage, the 9th through-hole and the 6th
Venthole connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910750263.7A CN110332169B (en) | 2019-08-14 | 2019-08-14 | Pneumatic reversing valve |
| TW109112584A TWI759718B (en) | 2019-08-14 | 2020-04-15 | Pneumatic directional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910750263.7A CN110332169B (en) | 2019-08-14 | 2019-08-14 | Pneumatic reversing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110332169A true CN110332169A (en) | 2019-10-15 |
| CN110332169B CN110332169B (en) | 2024-04-02 |
Family
ID=68149620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910750263.7A Active CN110332169B (en) | 2019-08-14 | 2019-08-14 | Pneumatic reversing valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110332169B (en) |
| TW (1) | TWI759718B (en) |
Cited By (1)
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|---|---|---|---|---|
| CN111779723A (en) * | 2020-05-20 | 2020-10-16 | 广东明晖气动科技有限公司 | Pneumatic valve of pneumatic nail gun |
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|---|---|---|---|---|
| CN111779723A (en) * | 2020-05-20 | 2020-10-16 | 广东明晖气动科技有限公司 | Pneumatic valve of pneumatic nail gun |
| CN111779723B (en) * | 2020-05-20 | 2022-07-19 | 广东明晖气动科技有限公司 | Pneumatic valve of pneumatic nail gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110332169B (en) | 2024-04-02 |
| TWI759718B (en) | 2022-04-01 |
| TW202106998A (en) | 2021-02-16 |
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