CN204512520U - A kind of three-way valve - Google Patents
A kind of three-way valve Download PDFInfo
- Publication number
- CN204512520U CN204512520U CN201420860020.1U CN201420860020U CN204512520U CN 204512520 U CN204512520 U CN 204512520U CN 201420860020 U CN201420860020 U CN 201420860020U CN 204512520 U CN204512520 U CN 204512520U
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- CN
- China
- Prior art keywords
- spool
- valve body
- channel
- push rod
- way valve
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Abstract
The utility model relates to valve field, particularly a kind of three-way valve.A kind of three-way valve, comprise valve body, cavity is provided with in described valve body, the first passage communicated with described cavity respectively in addition, second channel and third channel, spool is provided with in described cavity, described spool accompanies cylindrical body formation for symmetrically arranged two trapezoid bodys are middle up and down, describedly cylindrically outer be arranged with seal ring, by the cooperation of described spool and described cavity, realize first passage and second channel, between third channel, selectivity is communicated with, the upper surface of described spool is provided with push rod, described push rod stretches out described valve body through the upper end of described valve body, described push rod both sides are provided with the kelly of substantially horizontal, the deck corresponding with described kelly is provided with in described valve body.Overcome original three-way valve and need rotary spool and the defect causing the spool life-span short, extend the working life of three-way valve, saved cost of production.
Description
Technical field
The utility model relates to valve field, particularly a kind of three-way valve.
Background technique
Three-way valve is widely used in field of fluid control, and original three-way valve is installed in pipeline, is controlled the circulating direction of fluid by rotary spool, and structure is simple, but easily weares and teares, and causes the life-span of three-way valve not long, adds cost of production.
Summary of the invention
The purpose of this utility model is to provide the three-way valve of a kind of good airproof performance, life-span length.
The technical solution of the utility model is as follows: a kind of three-way valve, comprise valve body, cavity is provided with in described valve body, the first passage communicated with described cavity respectively in addition, second channel and third channel, spool is provided with in described cavity, described spool accompanies cylindrical body formation for symmetrically arranged two trapezoid bodys are middle up and down, describedly cylindrically outer be arranged with seal ring, by the cooperation of described spool and described cavity, first passage and second channel can be realized by a seal ring, between third channel, selectivity is communicated with, the upper surface of described spool is provided with push rod, described push rod stretches out described valve body through the upper end of described valve body, described push rod both sides are provided with the kelly of substantially horizontal, the deck corresponding with described kelly is provided with in described valve body.
Also comprise the upper end cap and lower end cap that are connected with described valve body.The part peripheral of described push rod below the deck of described valve body is provided with seal ring.The end of described push rod is provided with handle.
The beneficial effects of the utility model are: by the cooperation of described spool and described cavity, can realize first passage be communicated with selectivity between second channel, third channel by a seal ring.When two inclined-planes of the upper trapezoid body of the spool in valve body and the upper inside surface of cavity fit tightly, the seal ring outside the cylindrical body of spool plays good sealing effect, and first passage is communicated with second channel, and third channel is in closed condition; When handle with hand downward pressure valve core top, drive push rod and spool to moving down, kelly snaps in deck, rotating push rod, kelly is in valve body internal fixtion position, and the part peripheral of push rod below the deck of valve body is provided with seal ring, two inclined-planes of the descending stair body of spool and the lower inner surface of cavity fit tightly, seal ring outside the cylindrical body of spool plays good sealing effect, and first passage and third channel conducting, second channel is in closed condition.The good airproof performance of valve body of the present utility model, only need Joystick, change spool position in the lumen, just can the conducting direction of convection cell control, very convenient, overcome original three-way valve and need rotary spool and the defect causing the spool life-span short, extend the working life of three-way valve, saved cost of production.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the first state of the present utility model;
Fig. 2 is the structural representation of the second state of the present utility model.
Embodiment
As depicted in figs. 1 and 2, three-way valve of the present utility model, comprises valve body 1, and valve body 1 can be integral type, can also comprise the upper end cap and lower end cap that are connected with valve body.Cavity 2 is provided with in valve body 1, the first passage 3, second channel 4 and the third channel 5 that communicate with cavity 2 respectively in addition, first passage 3 connecting safety device 13 (SAV or SBV), second channel 4 is communicated with pressure chamber 14, third channel 5 Bonding pressure testing apparatus 15, be provided with spool 6 in cavity 2, spool 6 comprises upper trapezoid body 61, cylindrical body 62, descending stair body 63, is connected with spring 7 between the lower end of spool 6 and the lower end of valve body 1.The outer of cylindrical body 62 is arranged with seal ring 8, the upper surface of spool 6 is provided with push rod 9, push rod 9 stretches out valve body 1 through the upper end of described valve body 1, the end of push rod 9 is provided with handle 10, push rod 9 both sides are provided with the kelly 11 of substantially horizontal, be provided with the deck corresponding with kelly 11 in valve body 2, the part peripheral of push rod 9 below the deck of valve body 1 is provided with seal ring 12.
By the cooperation of spool 1 and cavity 2, realize first passage 3 and be communicated with second channel 4, third channel 5 selectivity.As shown in Figure 1, first passage 3 connecting safety device 13 (SAV or SBV), second channel 4 is communicated with pressure chamber 14, when two inclined-planes of the upper trapezoid body 61 of spool 6 and the upper inside surface of cavity 2 fit tightly, the spring 7 of spool 6 lower end is relaxed state, seal ring 7 outside the cylindrical body 62 of spool 6 plays good obturation effect, and first passage 3 is communicated with second channel 4, and third channel 5 is in closed condition; As shown in Figure 2, when with hand to when pressing down handle 10, drive push rod 9 and spool 6 to moving down, kelly 11 snaps in the deck of valve body 1, rotating push rod 9, and being fixed up in the position of kelly 11 in valve body 1, is not easy to loosen.The part peripheral of push rod 9 below the deck of valve body 1 is provided with seal ring 12, two inclined-planes of the descending stair body 63 of spool 6 and the lower inner surface of cavity 2 fit tightly, spring 7 is compressive state, seal ring 11 outside the cylindrical body 9 of spool 6 plays good sealing effect, first passage 3 and third channel 5 conducting, third channel 5 Bonding pressure testing apparatus 15, second channel 4 is in closed condition.
Claims (4)
1. a three-way valve, comprise valve body, it is characterized in that, cavity is provided with in described valve body, the first passage, second channel and the third channel that communicate with described cavity respectively in addition, be provided with spool in described cavity, and described spool accompanies cylindrical body formation for symmetrically arranged two trapezoid bodys are middle up and down, describedly cylindrically outer be arranged with seal ring, between the lower end of described spool lower end and described valve body, be connected with spring; By the cooperation of described spool and described cavity, realize first passage to be communicated with selectivity between second channel, third channel, the upper surface of described spool is provided with push rod, described push rod stretches out described valve body through the upper end of described valve body, described push rod both sides are provided with the kelly of substantially horizontal, are provided with the deck corresponding with described kelly in described valve body.
2. three-way valve according to claim 1, is characterized in that, also comprises the upper end cap and lower end cap that are connected with described valve body.
3. three-way valve according to claim 1, is characterized in that, the part peripheral of described push rod below the deck of described valve body is provided with seal ring.
4. three-way valve according to claim 1, is characterized in that, the end of described push rod is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860020.1U CN204512520U (en) | 2014-12-30 | 2014-12-30 | A kind of three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860020.1U CN204512520U (en) | 2014-12-30 | 2014-12-30 | A kind of three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512520U true CN204512520U (en) | 2015-07-29 |
Family
ID=53710498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420860020.1U Active CN204512520U (en) | 2014-12-30 | 2014-12-30 | A kind of three-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482246A (en) * | 2014-12-30 | 2015-04-01 | 特瑞斯能源装备股份有限公司 | Three-way valve |
-
2014
- 2014-12-30 CN CN201420860020.1U patent/CN204512520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482246A (en) * | 2014-12-30 | 2015-04-01 | 特瑞斯能源装备股份有限公司 | Three-way valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |