CN203948703U - Piston assembly on a kind of water treatment multi-outlet control valve - Google Patents
Piston assembly on a kind of water treatment multi-outlet control valve Download PDFInfo
- Publication number
- CN203948703U CN203948703U CN201420338513.9U CN201420338513U CN203948703U CN 203948703 U CN203948703 U CN 203948703U CN 201420338513 U CN201420338513 U CN 201420338513U CN 203948703 U CN203948703 U CN 203948703U
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- Prior art keywords
- piston
- main piston
- sub
- cavity
- control valve
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000009977 dual effect Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 230000007812 deficiency Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses the piston assembly on a kind of water treatment multi-outlet control valve, comprise driveshaft and main piston, also comprise sub-piston; Sub-piston is connected by connector with the main piston of control valve, forms the multichannel control piston of interlock, and main piston and sub-piston are controlled respectively the flow direction of different components or variable concentrations, and cooperatively interact.Only need single driving, just can drive main piston to move together with sub-piston, this structure has made original Dual Drive into single driving, and two-chamber road has made single cavity into, has simplified complicated mechanical structure, has reduced cost.
Description
Technical field
The utility model relates to a kind of piston assembly, in the control valve structure of controlling specifically for water treatment multichannel.
Background technique
The structural design of piston is most important to water treatment multi-outlet control valve.The main piston of water treatment control valve is straight line motion under the driving of motor, thereby changes the flow direction in valve body cavity, by with the coordinating of sub-piston, realize the flow direction of controlling heterogeneity or variable concentrations.
The main valve of current piston type multi-way control valve and secondary valve are all respectively equipped with independent driving and independent cavity, and two valves connect by flow channel for liquids, and structure is relatively complicated, and financial cost is higher; Two pistons separate, and do not connect, and need Dual Drive just can complete and walk, and have the cooperation driving between two pistons, easily produce the problem of mismate, the precision shortcoming that walks and not precisely cause liquid to be controlled of piston.
Summary of the invention
Model utility object: in order to overcome the deficiencies in the prior art, the utility model provides the piston assembly on a kind of water treatment multi-outlet control valve, structure is relatively simple, financial cost is lower, liquid to walk bit comparison accurate, solved the water treatment multi-outlet control valve complex structure that exists in prior art and the piston separation inaccurate deficiency that walks.
Technological scheme: for achieving the above object, the technical solution adopted in the utility model is:
A piston assembly on water treatment multi-outlet control valve, comprises driveshaft and main piston, and one end of driveshaft is fixedly connected on one end of main piston, also comprises sub-piston, and one end of sub-piston is fixedly connected on the other end of main piston.
By main piston and sub-piston are linked together, corresponding cavity also can be united two into one, removed connection water channel, simplified mechanical structure, reduced financial cost; Simultaneously main piston and sub-piston all rely on driveshaft drive together with motion, what make piston walks bit error separated type more accurate more in the past.
Further, in the utility model, in described main piston, be provided with the cavity at the main piston two ends of perforation, in described cavity, be provided with connector, on described connector, offer through hole, the cavity intercommunication of the opening of through hole and main piston, the cavity interference fit of described connector and main piston or be threaded connection, described sub-piston is connected on connector.Because main piston is direct and each runner mouth connecting part, the inner chamber of main piston can not seal as runner, therefore be also provided with through hole on connector, make because being provided with connector, not seal the cavity of main piston, liquid can flow to the other end from one end of main piston by piston cavity and connector.In addition, main piston two ends communicate, and the pressure at two ends equates, the driving force of main piston can be less like this, also can reduce the wearing and tearing of main piston.
Further, in the utility model, one end that described sub-piston and main piston are connected is a major part, and described major part is connected on sub-piston and is formed major part thin bar structure by one section of thin bar, and the diameter of described major part is greater than the diameter of thin bar; In described connector, be provided with cavity, the cavity of described connector and major part thin bar structure matching.Major part sticks in the cavity of connector, and major part is greater than the cavity size coordinating with thin bar place and cannot looses, and makes sub-piston reliable with being connected of connector, between sub-piston and connector, can not form relative movement in piston movement direction.
Beneficial effect:
In the utility model, driveshaft is connected with main piston, and driveshaft drives main piston straight line motion, and main piston is connected with connector, and sub-piston is stuck on connector, makes the same axis of main piston and sub-piston, and connects.When main piston straight line motion, sub-piston is motion together and then, under single state driving, just can realize the job step that all bivalves coordinate.Simplify complicated cavity structure, reduced driving element, reduced connection water channel, reduced financial cost; And because two pistons unite two into one, realized interlock, improved the precision walking.
On the other hand, owing to connecting before and after the cavity in main piston, also have hole on connector, even if load onto connector in main piston, liquid also can flow to the other end from one end of main piston by piston cavity and connector;
In addition, main piston two ends communicate, and the pressure at two ends equates, required like this driving force can be less, also can reduce the wearing and tearing of main piston.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
If Fig. 1 is the piston assembly on a kind of water treatment multi-outlet control valve, comprise driveshaft 1 and main piston 2; In main piston 2, be provided with and connect the cavity at main piston 2 two ends as the runner of water, the pressure at simultaneously all right balance main piston two ends; The cavity inside of main piston 2 is provided with a circle baffle plate, has a breach in the middle of baffle plate, and corresponding driveshaft 1 one end is provided with a circle groove, and driveshaft 1 connects and fixes mutually by the breach of groove and baffle plate.
In the cavity of main piston 2, be provided with connector 3, on described connector 3, offer through hole, the cavity intercommunication of the opening of through hole and main piston 2, liquid can be passed in and out freely in main piston 2, on described connector 3, offer through hole, the cavity intercommunication of the opening of through hole and main piston 2, described connector 3 is connected by screw-thread fit with the cavity of main piston 2, connector 3 is provided with a cavity, and described sub-piston 4 is stuck in the cavity on connector 3 by the major part thin bar structure of self one end.
During use, with driveshaft 1, drive main piston 2 straight line motions, due to main piston 2 and the same axis of sub-piston 4, and connect.When main piston 2 straight line motion, sub-piston 4 is and then motion together also.Main piston 2 and sub-piston 4 are controlled respectively the flow direction of heterogeneity or variable concentrations, under single state driving, just can realize the job step that all bivalves coordinate.
This assembly parts has made original two independent drivings and cavity into the interlocking system of single driving and single cavity, removed the liquid connecting passage between two control valves, simplified mechanical structure, reduced financial cost, two pistons have been realized interlock, have improved the precision that liquid walks, and have reduced the pressure difference at piston two ends, reduce driving force, reduce the wearing and tearing of piston.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the piston assembly on a water treatment multi-outlet control valve, comprise driveshaft (1) and main piston (2), one end of driveshaft (1) is fixedly connected on one end of main piston (2), it is characterized in that: also comprise sub-piston (4), one end of sub-piston (4) is fixedly connected on the other end of main piston (2).
2. the piston assembly on a kind of water treatment multi-outlet control valve according to claim 1, it is characterized in that: in described main piston (2), be provided with the cavity that connects main piston (2) two ends, in described cavity, be provided with connector (3), described connector offers through hole on (3), the cavity intercommunication of the opening of through hole and main piston (2), the cavity interference fit of described connector (3) and main piston (2) or be threaded connection, described sub-piston (4) is connected on connector (3).
3. the piston assembly on a kind of water treatment multi-outlet control valve according to claim 2, it is characterized in that: described sub-piston (4) is a major part with one end that main piston (2) is connected, described major part is connected in the upper major part thin bar structure that forms of sub-piston (4) by one section of thin bar, and the diameter of described major part is greater than the diameter of thin bar; Described connector is provided with cavity in (3), the cavity of described connector (3) and major part thin bar structure matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338513.9U CN203948703U (en) | 2014-06-23 | 2014-06-23 | Piston assembly on a kind of water treatment multi-outlet control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338513.9U CN203948703U (en) | 2014-06-23 | 2014-06-23 | Piston assembly on a kind of water treatment multi-outlet control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948703U true CN203948703U (en) | 2014-11-19 |
Family
ID=51890740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420338513.9U Expired - Fee Related CN203948703U (en) | 2014-06-23 | 2014-06-23 | Piston assembly on a kind of water treatment multi-outlet control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948703U (en) |
-
2014
- 2014-06-23 CN CN201420338513.9U patent/CN203948703U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 |