CN203823142U - Combination valve - Google Patents
Combination valve Download PDFInfo
- Publication number
- CN203823142U CN203823142U CN201420237016.XU CN201420237016U CN203823142U CN 203823142 U CN203823142 U CN 203823142U CN 201420237016 U CN201420237016 U CN 201420237016U CN 203823142 U CN203823142 U CN 203823142U
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- China
- Prior art keywords
- valve
- valve seat
- valve rod
- rod
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- Expired - Fee Related
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Abstract
The utility model discloses a combination valve. The combination valve comprises a first valve base and a second valve base, wherein the first valve base and the second valve base are integrally arranged. A first valve cavity is formed in the first valve base. A first gas inlet, a first gas outlet and a first gas exhausting port are formed in the first valve base. A first valve rod is movably arranged in the first valve cavity. A second valve cavity is formed in the second valve base. A second valve rod is movably arranged in the second valve cavity. The upper end of the first valve rod extends out of the first valve base, the upper end of the second valve rod extends out of the second valve base, and the upper end of the first valve rod and the upper end of the second valve rod are respectively connected with a piston. The first valve base and the second valve base are respectively provided with a guide mechanism matched with the corresponding piston. The bottom end of the first valve rod and the bottom end of the second valve rod are respectively provided with three installation holes in the axial direction. Reset springs are arranged between the installation holes and the corresponding valve bases respectively in a connecting mode. The combination valve is simple and reasonable in structure, capable of saving gas and reducing operation cost, good in reset effect, simple in operation, high in automation degree, and suitable for high-precision operation environments.
Description
Technical field
The utility model relates to valve class technical field, particularly a kind of combination brake switch and proporting.
Background technique
Valve class is widely used in mechanical field as control unit, for example adopt the working state of selector valve control cylinder, when work, pass into pressurized gas to rod chamber or the rodless cavity of cylinder respectively by selector valve, so can control cylinder piston rod stretch out or retract.Current known selector valve kind is comparatively various, mainly comprise servomotor driven change valve, solenoid directional control valve, electro-hydraulic reversing valve and hand-operated direction valve, servomotor driven change valve claims again stroke valve, it utilizes the block or the cam that are arranged on moving element, the roller of extruding spool end moves spool, thereby reaches the effect of commutation; Solenoid directional control valve is mainly to utilize electromagnetic attraction to handle spool transposition; The combination valve that electro-hydraulic reversing valve is made up of solenoid directional control valve and hydraulicchange-over valve; Hand-operated direction valve is mainly to utilize hand pushed lever to handle spool transposition.Wherein solenoid directional control valve and hand-operated direction valve are comparatively general in pneumatic industry application, but, existing solenoid directional control valve is unreasonable because structure arranges, conventionally there is following defect: first, in the time that selector valve is discharged the pressurized air in cylinder, the pressurized air of discharging cannot reuse, and causes gas consumption more, and operating cost is higher; Second, in order to ensure that spool can reset rapidly under dead electricity condition, between spool and valve seat, be typically provided with Returnning spring, but, between the spool of existing solenoid directional control valve and valve seat, be conventionally only connected a Returnning spring, in the time that Returnning spring is replied, spool is easily because discontinuity causes radial deflection phenomenon, effect is replied in impact, and single Returnning spring easily occurs around junction phenomena in the time of compression simultaneously, causes reset effect poor; The defect of hand-operated direction valve is manually to carry out manual reverse of direction, operates comparatively loaded down with trivial detailsly, and automaticity is lower, is difficult to be applicable to highi degree of accuracy working environment.
Model utility content
The purpose of this utility model is for the defect of prior art and deficiency, provide a kind of simple and reasonable, can saving gas, reduce operating cost, reset effect is better, simple to operate, automaticity is higher, can be applicable to the combination brake switch and proporting of highi degree of accuracy working environment.
For achieving the above object, the utility model is by the following technical solutions:
A kind of combination brake switch and proporting described in the utility model, comprise the first valve seat and the second valve seat that are wholely set, in described the first valve seat, form the first valve pocket, described the first valve seat is provided with the first inlet hole, the first air outlet hole and the first row pore that are communicated with the first valve pocket respectively, in described the first valve pocket, be movably equipped with the first valve rod, described the first valve rod is provided with some the first closed loops of sealing each path, is embedded with the first seal ring with the first valve pocket inwall corresponding matching in described the first closed loop;
In described the second valve seat, form the second valve pocket, described the second valve seat is provided with the second inlet hole, the second air outlet hole and the second row pore that are communicated with the second valve pocket respectively, in described the second valve pocket, be movably equipped with the second valve rod, described the second valve rod is provided with some the second closed loops of sealing each path, is embedded with the second seal ring with second valve cavity wall corresponding matching in described the second closed loop;
The upper end of described the first valve rod and the second valve rod all stretches out in the outside piston that is also connected with respectively of respective valve seat, on described the first valve seat and the second valve seat, be respectively equipped with the pilot mechanism coordinating with respective pistons, in the time that pilot mechanism is switched on, described piston drives corresponding valve rod to move vertically under the effect of pilot mechanism, the end, bottom of described the first valve rod and the second valve rod is respectively equipped with three mounting holes vertically, the axis of three mounting holes on described same valve rod is uniformly distributed on same circumference, between described some mounting holes and respective valve seat, be connected with respectively Returnning spring, between described the first inlet hole and the second inlet hole all the time in connected state.
Further, described pilot mechanism comprises coil and pilot head, and described piston is positioned at corresponding pilot head, and described pilot head is detachably installed in respective valve seat by screw, and described coil is installed and is located in pilot head by jump ring.
Further, in described the first valve pocket and the second valve pocket, be respectively equipped with and the guide holder of respective valve bar corresponding matching.
The beneficial effects of the utility model are: by said structure is set, make the utility model simple and reasonable, can saving gas, reduce operating cost, reset effect is better, simple to operate, automaticity is higher, can be applicable to highi degree of accuracy working environment.
Particularly, by integrated the first valve seat and the second valve seat are being set, and make the first inlet hole and the second inlet hole all the time in connected state, when work, the first air outlet hole is connected to the rodless cavity of cylinder, the second air outlet hole is connected to the rod chamber of cylinder, by the motion of the corresponding valve rod of pilot mechanism control, in the time passing into pressurized air in rodless cavity, cylinder piston moves and compresses the air in rod chamber, pressurized air in rod chamber is back in rodless cavity, save gas consumption, reduced operating cost; By being respectively equipped with vertically three mounting holes in the end, bottom of the first valve rod and the second valve rod, the axis of three mounting holes on described same valve rod is uniformly distributed on same circumference, between described some mounting holes and respective valve seat, be connected with respectively Returnning spring, ensure that corresponding valve rod is stressed even in the time resetting, avoid valve rod to occur radial deflection phenomenon, simultaneously multiple Returnning springs cooperating simultaneously, has effectively prevented that Returnning spring from occurring around junction phenomena, and reset effect is better; By the corresponding stem movement of pilot mechanism control, automaticity is higher, easy to operate, can be applicable to highi degree of accuracy workplace.
Brief description of the drawings
Fig. 1 is plan view structural representation of the present utility model;
Fig. 2 is left view structural representation of the present utility model;
Fig. 3 is right elevation structural representation of the present utility model;
Fig. 4 is the first valve seat of the present utility model and internal structure sectional view structural representation thereof;
Fig. 5 is the second valve seat of the present utility model and internal structure sectional view structural representation thereof.
In figure:
1, the first valve seat; 2, the second valve seat; 10, the first valve pocket; 11, the first inlet hole; 12, the first air outlet hole; 13, first row pore; 14, the first valve rod; 141, the first closed loop; 142, the first seal ring; 20, the second valve pocket; 21, the second inlet hole; 22, the second air outlet hole; 23, second row pore; 24, the second valve rod; 241, the second closed loop; 242, the second seal ring; 3, piston; 5, mounting hole; 6, Returnning spring; 41, coil; 42, pilot head; 43, screw; 44, jump ring; 7, guide holder.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of combination brake switch and proporting as shown in Figures 1 to 5, comprise the first valve seat 1 and the second valve seat 2 that are wholely set, in described the first valve seat 1, form the first valve pocket 10, described the first valve seat 1 is provided with the first inlet hole 11, the first air outlet hole 12 and the first row pore 13 that are communicated with the first valve pocket 10 respectively, in described the first valve pocket 10, be movably equipped with the first valve rod 14, described the first valve rod 14 is provided with some the first closed loops 141 of sealing each path, is embedded with the first seal ring 142 with the first valve pocket 10 inwall corresponding matching in described the first closed loop 141.
In described the second valve seat 2, form the second valve pocket 20, described the second valve seat 2 is provided with the second inlet hole 21, the second air outlet hole 22 and the second row pore 23 that are communicated with the second valve pocket 20 respectively, in described the second valve pocket 20, be movably equipped with the second valve rod 24, described the second valve rod 24 is provided with some the second closed loops 241 of sealing each path, is embedded with the second seal ring 242 with the second valve pocket 20 inwall corresponding matching in described the second closed loop 241.
The upper end of described the first valve rod 14 and the second valve rod 24 all stretches out in the outside piston 3 that is also connected with respectively of respective valve seat, on described the first valve seat 1 and the second valve seat 2, be respectively equipped with the pilot mechanism coordinating with respective pistons 3, described pilot mechanism comprises coil 41 and pilot head 42, described piston 3 is positioned at corresponding pilot head 42, described pilot head 42 is detachably installed in respective valve seat by screw 43, described coil 41 is installed and is located in pilot head 42 by jump ring 44, in the time that pilot mechanism is switched on, described piston 3 drives corresponding valve rod to move vertically under the effect of pilot mechanism, the end, bottom of described the first valve rod 14 and the second valve rod 24 is respectively equipped with three mounting holes 5 vertically, the axis of three mounting holes 5 on described same valve rod is uniformly distributed on same circumference, between described some mounting holes 5 and respective valve seat, is connected with respectively Returnning spring 6, between described the first inlet hole 11 and the second inlet hole 21 all the time in connected state.
The above forms agent structure of the present utility model.
Working principle of the present utility model is: under original state, as shown in Figure 4 and Figure 5, coil 41 on the first valve seat 1 and the second valve seat 2 all must not be electric, now the first valve seat 1 inside is in normally off, between the first inlet hole 11 and the first air outlet hole 12, close, in the time passing into pressurized air to the first inlet hole 11, the interior airless of the first air outlet hole 12 passes through; The second valve seat 2 inside, in normally open, are communicated with between the second inlet hole 21 and the second air outlet hole 22, in the time that the second inlet hole 21 has pressurized air, in the second air outlet hole 22, have air-flow to pass through, and this part air-flow enter in the rod chamber of cylinder.
Under original state, in the first inlet hole 11, pass into pressurized air, because the first inlet hole 11 and the second inlet hole 21 are all the time in connected state, pressurized air enters in the second inlet hole 21, now pressurized air flows in the rod chamber of cylinder through the second air outlet hole 22, under compressed-air actuated effect, the piston rod of cylinder is made retraction movement.
Under cylinder one-shot state, coil 41 on the first valve seat 1 obtains electric, the coil 41 of the second valve seat 2 must not be electric, now the first valve seat 1 inside is in opening state, the first inlet hole 11 is communicated with the first air outlet hole 12, in the time that the first inlet hole 11 passes into pressurized air, the first air outlet hole 12 has air-flow to pass through, and the inner air path of the second valve seat 2 now still maintains the original state.
Under one-shot state, in the first inlet hole 11, pass into pressurized air, pressurized air enters in the rodless cavity of cylinder through the first air outlet hole 12, because the air pressure of cylinder rodless cavity is now greater than the pressure of rod chamber, the piston rod of cylinder stretches out motion, impact shell face, air in rod chamber is back to the second air outlet hole 22 under the compression of cylinder piston, now the second air outlet hole 22 and the second inlet hole 21 are still in connected state, the air of this part backflow is back in the first inlet hole 11 by the second inlet hole 21, and finally flow in the rodless cavity of cylinder, thereby effectively play energy-conservation effect, after stretching out and having moved, coil 41 dead electricity on the first valve seat 1, the first valve seat 1 inner air path is closed, cylinders retract.In the time that shell face is not opened, cylinder is made secondary pulse.
Under the secondary pulse state of cylinder, continue to pass into pressurized air to the first inlet hole 11, the coil 41 that makes the first valve seat 1 and the second valve seat 2 all electric, now the first valve seat 1 inner air path is opened, the second valve seat 2 inner air paths are closed, it is to be noted, the first valve seat 1 and the second valve seat 2 obtain the electric small time difference that exists, coil 41 on the second valve seat 2 first electric, when the coil 41 by the first valve seat 1 after the air of the drained cylinder rod chamber of second row pore 23 again electric, now the interior airless of cylinder rod chamber and a part of airflow reflux are to rodless cavity, this disappears under those length, the piston rod of cylinder stretches out speed to be accelerated, cylinder action power is strengthened.
By three mounting holes 5 are set on same valve rod, and be connected respectively Returnning spring 6 is set between described mounting hole 5 and respective valve seat, ensure that corresponding valve rod is stressed even in the time resetting, avoid valve rod to occur radial deflection phenomenon, simultaneously multiple Returnning springs 6 cooperating simultaneously, effectively prevent that Returnning spring 6 from occurring that, around junction phenomena, reset effect is better.By the corresponding stem movement of pilot mechanism control, automaticity is higher, easy to operate, can be applicable to highi degree of accuracy workplace.
In described the first valve pocket 10 and the second valve pocket 20, be respectively equipped with and the guide holder 7 of respective valve bar corresponding matching, by guide holder 7 is set, the concentricity while further having ensured stem movement, makes closed loop 141 sealing effects better.
The above is only preferred embodiments of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (3)
1. a combination brake switch and proporting, it is characterized in that: comprise the first valve seat (1) and the second valve seat (2) that are wholely set, in described the first valve seat (1), form the first valve pocket (10), described the first valve seat (1) is provided with the first inlet hole (11) being communicated with the first valve pocket (10) respectively, the first air outlet hole (12) and first row pore (13), in described the first valve pocket (10), be movably equipped with the first valve rod (14), described the first valve rod (14) is provided with some the first closed loops (141) of sealing each path, in described the first closed loop (141), be embedded with the first seal ring (142) with the first valve pocket (10) inwall corresponding matching,
In described the second valve seat (2), form the second valve pocket (20), described the second valve seat (2) is provided with the second inlet hole (21) being communicated with the second valve pocket (20) respectively, the second air outlet hole (22) and second row pore (23), in described the second valve pocket (20), be movably equipped with the second valve rod (24), described the second valve rod (24) is provided with some the second closed loops (241) of sealing each path, in described the second closed loop (241), be embedded with the second seal ring (242) with the second valve pocket (20) inwall corresponding matching,
The upper end of described the first valve rod (14) and the second valve rod (24) all stretches out in the outside piston (3) that is also connected with respectively of respective valve seat, on described the first valve seat (1) and the second valve seat (2), be respectively equipped with the pilot mechanism coordinating with respective pistons (3), in the time that pilot mechanism is switched on, described piston (3) drives corresponding valve rod to move vertically under the effect of pilot mechanism, the end, bottom of described the first valve rod (14) and the second valve rod (24) is respectively equipped with three mounting holes (5) vertically, the axis of three mounting holes (5) on described same valve rod is uniformly distributed on same circumference, between described some mounting holes (5) and respective valve seat, be connected with respectively Returnning spring (6), between described the first inlet hole (11) and the second inlet hole (21) all the time in connected state.
2. combination brake switch and proporting according to claim 1, it is characterized in that: described pilot mechanism comprises coil (41) and pilot head (42), described piston (3) is positioned at corresponding pilot head (42), described pilot head (42) is detachably installed in respective valve seat by screw (43), and described coil (41) is installed and is located in pilot head (42) by jump ring (44).
3. combination brake switch and proporting according to claim 1, is characterized in that: in described the first valve pocket (10) and the second valve pocket (20), be respectively equipped with the guide holder (7) with respective valve bar corresponding matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237016.XU CN203823142U (en) | 2014-05-09 | 2014-05-09 | Combination valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237016.XU CN203823142U (en) | 2014-05-09 | 2014-05-09 | Combination valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823142U true CN203823142U (en) | 2014-09-10 |
Family
ID=51478646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420237016.XU Expired - Fee Related CN203823142U (en) | 2014-05-09 | 2014-05-09 | Combination valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823142U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390037A (en) * | 2014-10-31 | 2015-03-04 | 无锡气动技术研究所有限公司 | Four-position five-way reversal valve |
| CN104482252A (en) * | 2015-01-06 | 2015-04-01 | 胡甜甜 | Integrated reversing valve |
-
2014
- 2014-05-09 CN CN201420237016.XU patent/CN203823142U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390037A (en) * | 2014-10-31 | 2015-03-04 | 无锡气动技术研究所有限公司 | Four-position five-way reversal valve |
| CN104482252A (en) * | 2015-01-06 | 2015-04-01 | 胡甜甜 | Integrated reversing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20170509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |