CN209067889U - A kind of tyre vulcanizer overflow-type nitrogen balance valve - Google Patents
A kind of tyre vulcanizer overflow-type nitrogen balance valve Download PDFInfo
- Publication number
- CN209067889U CN209067889U CN201821884264.8U CN201821884264U CN209067889U CN 209067889 U CN209067889 U CN 209067889U CN 201821884264 U CN201821884264 U CN 201821884264U CN 209067889 U CN209067889 U CN 209067889U
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- pressing plate
- valve body
- spool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The utility model discloses a kind of tyre vulcanizer overflow-type nitrogen balance valves, including top cover, valve body and bottom cover, spool and valve rod are equipped in valve body, the inner hollow and side wall of valve rod are equipped with through hole, the bottom end seal of valve rod is simultaneously fixedly connected with spool, and top end opening simultaneously extends in cavity across valve body；It is provided with upper diaphragm, lower diaphragm, upper diaphragm pressing plate and lower diaphragm pressing plate in the cavity, cavity is separated into setting pressure chamber, spill cavity and pressure feedback chamber, the side wall of spill cavity is equipped with multiple overflow holes；The top of valve rod passes through the through-hole among lower diaphragm pressing plate, and top cover is equipped with the pressure communicated with setting pressure chamber and sets air inlet, and valve body is equipped with the feedback hole that pressure feedback chamber is connected with access；Spool can be moved up and down along bottom cover, and spring is provided between spool and bottom cover.It has the advantages that gas outlet pressure can keep outlet pressure to stablize in setting value in valve internal self feed back, outlet port back pressure by the overflow port overflow of valve.
Description
Technical field
The utility model relates to rubber tyre production technical field, especially a kind of tyre vulcanizer overflow-type nitrogen balance
Valve.
Background technique
In the prior art, sizing pressure control of the tyre vulcanizer in nitrogen sulfuration process uses self-balancing valve.
There are two disadvantages for self-balancing valve: 1, without relief function, vulcanizer segmented mold molding squeezes capsule, and capsule pressure is more than setting
Value, this part back pressure can not be restored to setting air pressure by valve overflow, this is formed in a mold to fetus and has a negative impact；
2, feedback port needs external feedback pipe to valve export to negate feedback air pressure, and scene adapter tube is complicated, and feedback pressure has lag.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of gas outlet pressure in valve internal self feed back, outlet
Mouth end back pressure can keep outlet pressure to stablize the tyre vulcanizer overflow-type in setting value by the overflow port overflow of valve
Nitrogen balance valve.
The technical scheme in the invention for solving the above technical problem is: the nitrogen balance valve include top cover, valve body and
Bottom cover, top cover are located at the top of valve body, and bottom cover is located at the bottom of valve body, are structurally characterized in that between the top cover and valve body and are formed
Cavity forms access between valve body and bottom cover；Spool and valve rod are equipped in valve body, the top of spool is equipped with the second rubber seal
Pad, the inner hollow and side wall of valve rod are equipped with through hole, and the bottom end seal of valve rod is simultaneously fixedly connected, top end opening with spool
And it passes through valve body and extends in cavity；It is provided with upper diaphragm, lower diaphragm, upper diaphragm pressing plate and lower diaphragm pressing plate in the cavity, on
Diaphragm pressing plate is mutually fixed with upper diaphragm, and the bottom end of upper diaphragm pressing plate is equipped with the first rubber gasket, lower diaphragm pressing plate and lower diaphragm
Mutually fixed, cavity is separated into setting pressure chamber, spill cavity and pressure by upper diaphragm, lower diaphragm, upper diaphragm pressing plate and lower diaphragm pressing plate
The side wall of force feedback chamber, spill cavity is equipped with multiple overflow holes；The top of valve rod passes through the through-hole among lower diaphragm pressing plate, top cover
It is equipped with the pressure communicated with setting pressure chamber and sets air inlet, valve body is anti-equipped with pressure feedback chamber is connected with access
Feed-through；Spool can be moved up and down along bottom cover, and spring is provided between spool and bottom cover.
The top end opening of valve rod described in the utility model is connected in overflow situation with spill cavity.
The side of access described in the utility model is air inlet, and the other side is gas outlet, and feedback hole and through hole and go out
Port is connected.
Under the force of a spring, second rubber gasket and valve body on spool top are in close contact the utility model, valve
First rubber gasket of bar top and upper diaphragm pressing plate bottom end is in close contact.
The utility model compared with prior art, has the advantages that the 1, balanced valve is double diaphragm structures, up and down
Two diaphragms are divided into setting pressure chamber, spill cavity and pressure feedback chamber for cavity is formed between top cover and valve body, wherein setting
Pressure chamber and pressure feedback chamber are used to gas outlet pressure pressure stabilizing to setting pressure, and spill cavity overflows the superpressure back pressure of outlet port
It flows and is put into atmosphere；2, feedback channel is arranged in valve inner the balanced valve, i.e., is provided on valve body by pressure feedback
Outlet pressure is introduced into pressure feedback chamber by the feedback hole that chamber is connected with gas outlet, and outlet pressure can directly feed back to lower film
Piece is not necessarily to external pipe, and feedback path is short, and lag time shortens.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Referring to Fig. 1, the present embodiment includes top cover 17, valve body 18 and bottom cover 1, and top cover 17 is located at the top of valve body 18, bottom cover 1
Cavity 20 is formed between the bottom of valve body 18, top cover 17 and valve body 18, forms access 21 between valve body 18 and bottom cover 1, is led to
The side on road 21 is air inlet 16, and the other side is gas outlet 13.
Spool 3 and valve rod 4 are equipped in valve body 18, the top of spool 3 is equipped with the second rubber gasket 23, the inside of valve rod 4
Hollow and side wall is equipped with through hole 19, and the bottom end seal of valve rod 4 is simultaneously fixedly connected with spool 3, and top end opening simultaneously passes through valve
Body 18 extends in cavity 20.
Upper diaphragm 10, lower diaphragm 8, upper diaphragm pressing plate 7 and lower diaphragm pressing plate 6, upper diaphragm pressing plate 7 are provided in cavity 20
It is fixed with 10 phase of upper diaphragm, the bottom end of upper diaphragm pressing plate 7 is equipped with the first rubber gasket 22, lower diaphragm pressing plate 6 and lower 8 phase of diaphragm
Fixed, cavity 20 is successively separated into setting by upper diaphragm 10, lower diaphragm 8, upper diaphragm pressing plate 7 and lower diaphragm pressing plate 6 from top to bottom
The side wall of pressure chamber 11, spill cavity 9 and pressure feedback chamber 15, spill cavity 9 is equipped with multiple overflow holes 14.It wears on the top of valve rod 4
The through-hole among diaphragm pressing plate 6 is crossed down, top cover 17 is equipped with the pressure communicated with setting pressure chamber 11 and sets air inlet 12, valve body
18 are equipped with the feedback hole 5 that pressure feedback chamber 15 is connected with access 21.Spool 3 can be moved up and down along bottom cover 1, due to spool
3 are fixedly connected with valve rod 4, and spool 3 will drive valve rod 4 and move up and down together.Spring 2 is provided between spool 3 and bottom cover 1,
Under the active force of spring 2, the second rubber gasket 23 and the valve body 18 on 3 top of spool are in close contact, 4 top of valve rod and upper diaphragm
First rubber gasket 22 of 7 bottom end of pressing plate is in close contact.Feedback hole 5 and through hole 19 are connected with gas outlet 13.
When work, control pressure enters setting pressure chamber 11 through pressure setting air inlet 12, and pressure acts on upper diaphragm 10
Upper surface, upper diaphragm 10 deformation generate a downward force F1, upper diaphragm pressing plate 7 push valve rod 4 move down, valve rod 4 be integrally connected
Spool 3 overcome the directed force F 2 of spring 2 to open valve port, nitrogen flows to gas outlet 13 again by pipeline flow-direction sulphur from air inlet 16
Change machine capsule.There is feedback hole 5 in 13 upper end of gas outlet, and outlet pressure enters pressure feedback chamber 15 by feedback hole 5, and pressure acts on
The lower surface of lower diaphragm 8, lower diaphragm 8 generate a upward power F3, upward power F3 by lower diaphragm pressing plate 6 and upper diaphragm pressing plate 7 to
Exert oneself F1 interaction.As the gas outlet pressure for flowing to capsule is gradually increased, upward power F3 is also gradually increased, and upper diaphragm 10 becomes
Shape is gradually reduced, and valve rod 4 and spool 3 gradually move up, and valve port is gradually reduced.When the outlet pressure of gas outlet 13 reaches setting pressure
Power, at this moment F3+F2=F1,10 eliminating deformation of upper diaphragm, for valve rod 4 not by downward force, spool 3 closes valve port, capsule inflation knot
Beam.
When capsule is squeezed by outer mold, volume becomes smaller, and internal pressure passively increases, and forms back pressure.At this moment in order to make
Capsule pressure recovery sets pressure, higher than the gas outlet pressure of setting pressure, enters pressure feedback chamber 15 by feedback hole 5, this
When F3+F2 > F1, upper diaphragm 10 is pushed to deformation, and upper diaphragm pressing plate 7 moves up therewith, and valve rod 4 is limited not by 3 position of spool
It can follow and move up, 4 top of valve rod and upper diaphragm pressing plate 7 are detached from and generate a gap.Valve rod 4 is hollow and its top end opening, in valve rod 4
The through hole 19 in portion is communicated with gas outlet 13, the hollow channel and top end opening and valve rod 4 that the gas of gas outlet 13 passes through valve rod 4
Gap between upper diaphragm pressing plate 7 flows to spill cavity 9；Spill cavity 9 has multiple overflow holes 14 to link up with atmosphere, and gas outlet 13 is logical
It crosses overflow hole 14 and overflows to atmosphere, with overflow, the decline of capsule pressure, the outlet pressure of gas outlet 13 is gradually decreased to setting pressure
Power, at this moment F3+F2=F1,10 eliminating deformation of upper diaphragm, upper diaphragm pressing plate 7 mutually press sealing with 4 top end face of valve rod, and overflow terminates.
Claims (4)
1. a kind of tyre vulcanizer overflow-type nitrogen balance valve, including top cover (17), valve body (18) and bottom cover (1), top cover (17)
Positioned at the top of valve body (18), bottom cover (1) is located at the bottom of valve body (18), it is characterized in that: the top cover (17) and valve body (18)
Between formed cavity (20), between valve body (18) and bottom cover (1) formation access (21)；Spool (3) and valve are equipped in valve body (18)
The top of bar (4), spool (3) is equipped with the second rubber gasket (23), and the inner hollow and side wall of valve rod (4) are equipped with through hole
(19), it the bottom end seal of valve rod (4) and is fixedly connected with spool (3), top end opening simultaneously passes through valve body (18) and extends to cavity
(20) in；It is provided with upper diaphragm (10), lower diaphragm (8), upper diaphragm pressing plate (7) and lower diaphragm pressing plate (6) in cavity (20), on
Diaphragm pressing plate (7) is mutually fixed with upper diaphragm (10), and the bottom end of upper diaphragm pressing plate (7) is equipped with the first rubber gasket (22), lower film
Piece pressing plate (6) is mutually fixed with lower diaphragm (8), upper diaphragm (10), lower diaphragm (8), upper diaphragm pressing plate (7) and lower diaphragm pressing plate (6)
Cavity (20) is separated into setting pressure chamber (11), spill cavity (9) and pressure feedback chamber (15), is set on the side wall of spill cavity (9)
There are multiple overflow holes (14)；The top of valve rod (4) passes through the intermediate through-hole of lower diaphragm pressing plate (6), and top cover (17) is equipped with and sets
The pressure that constant-pressure chamber (11) communicates sets air inlet (12), and valve body (18) is equipped with pressure feedback chamber (15) and access (21)
The feedback hole (5) being connected；Spool (3) can be moved up and down along bottom cover (1), and be provided with spring between spool (3) and bottom cover (1)
(2).
2. tyre vulcanizer overflow-type nitrogen balance valve according to claim 1, it is characterized in that: the top of the valve rod (4)
End opening is connected in overflow situation with spill cavity (9).
3. tyre vulcanizer overflow-type nitrogen balance valve according to claim 1, it is characterized in that: the one of the access (21)
Side is air inlet (16), and the other side is gas outlet (13), and feedback hole (5) and through hole (19) are connected with gas outlet (13).
4. tyre vulcanizer overflow-type nitrogen balance valve according to claim 1, it is characterized in that: the effect in spring (2)
Under power, second rubber gasket (23) on spool (3) top and valve body (18) are in close contact, valve rod (4) top and upper diaphragm pressure
First rubber gasket (22) of plate (7) bottom end is in close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821884264.8U CN209067889U (en) | 2018-11-15 | 2018-11-15 | A kind of tyre vulcanizer overflow-type nitrogen balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821884264.8U CN209067889U (en) | 2018-11-15 | 2018-11-15 | A kind of tyre vulcanizer overflow-type nitrogen balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209067889U true CN209067889U (en) | 2019-07-05 |
Family
ID=67099338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821884264.8U Active CN209067889U (en) | 2018-11-15 | 2018-11-15 | A kind of tyre vulcanizer overflow-type nitrogen balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209067889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431904A (en) * | 2020-03-23 | 2021-09-24 | 林庆辉 | Fluid valve integrating opening and closing functions with overflow functions |
-
2018
- 2018-11-15 CN CN201821884264.8U patent/CN209067889U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431904A (en) * | 2020-03-23 | 2021-09-24 | 林庆辉 | Fluid valve integrating opening and closing functions with overflow functions |
| CN113431904B (en) * | 2020-03-23 | 2023-02-17 | 林庆辉 | Fluid valve integrating opening and closing functions with overflow functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201344281Y (en) | Pilot-operated dished diaphragm solenoid valve | |
| CN205504071U (en) | Atmospheric pressure diaphragm valve | |
| CN209067889U (en) | A kind of tyre vulcanizer overflow-type nitrogen balance valve | |
| CN201235322Y (en) | Diaphragm type glue dropping valve | |
| CN201795125U (en) | Dynamic flow balancing valve | |
| CN105149167A (en) | Negative pressure feedback re-suction ejector pin type dispensing valve | |
| CN102313054B (en) | Piston type pressure reducing valve | |
| KR101700159B1 (en) | gas spring | |
| CN102392911A (en) | Diaphragm type pressure reducing valve | |
| CN203809781U (en) | Air cylinder driving type high and low pressure valve | |
| CN206617598U (en) | Pressure-reducing valve with piston balance ring | |
| CN101761682B (en) | soft starting valve | |
| CN205479377U (en) | Pneumatic shut -off valve | |
| CN208197417U (en) | A kind of novel sealing structure of liquid silica gel injection molding | |
| CN100480558C (en) | Movable vacuum apparatus | |
| CN208457088U (en) | A kind of novel controllable time delay rebound nitrogen gas spring | |
| CN212928952U (en) | Two-stage pulse valve | |
| CN206468838U (en) | A kind of step direct-acting type electromagnetic valve | |
| CN214579030U (en) | Oxygen-making and nitrogen-discharging dual-mode oxygen-making valve | |
| CN205172926U (en) | Sealed piston | |
| CN208292641U (en) | A kind of filling liquid filling valve | |
| CN207333910U (en) | A kind of ultra micro presses pilot-operated regulator | |
| CN203322414U (en) | Safety valve | |
| CN201795115U (en) | Equivalence autocontrol setter | |
| CN203718112U (en) | Quick opening exhaust valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |