CN2705671Y - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN2705671Y CN2705671Y CN 200420044979 CN200420044979U CN2705671Y CN 2705671 Y CN2705671 Y CN 2705671Y CN 200420044979 CN200420044979 CN 200420044979 CN 200420044979 U CN200420044979 U CN 200420044979U CN 2705671 Y CN2705671 Y CN 2705671Y
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- valve
- block
- flow channel
- plate
- valve plate
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- Expired - Lifetime
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Abstract
The utility model relate to a kind of simple in structure, reliability is high, can prevent the stop valve in the sealing, comprise valve body, valve seat, go up valve block, lower valve and controlling rod, lower valve is fixed on the valve seat, be provided with position-limit mechanism between valve body and the controlling rod, it is characterized in that also being provided with between valve block and the lower valve middle valve plate, it is corresponding with the flow channel of upper and lower valve block that middle valve plate is provided with flow channel, and last valve block is provided with the shifting block that resets, and middle valve plate is provided with to reset dials the wing.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of stop valve.
Background technique
Existing stop valve, by valve body, controlling rod, be fixed in lower valve in the valve body and the control of controlled bar and can constitute with the last valve block of lower valve relative movement, be provided with position-limit mechanism between valve body and the controlling rod, wherein on upper and lower valve block, all have flow channel, drive during the controlling rod action and go up valve plate movement, make flow channel and connection of the flow channel on the lower valve or dislocation on the valve block, thereby realize opening or closing of valve, the relative movement between last valve block and the lower valve has rotary and linear type.As disclose the technological scheme of a kind of " sealing valve " by name among the disclosed Chinese patent bulletin CN2182312Y on November 9th, 1994, this technological scheme is a typical rotary stop valve structure.The shortcoming of existing this stop valve is a poor reliability, once have impurity in current or the liquid, and in closing closed procedure, just impurity is stuck between the flow channel of upper and lower valve block, and valve just can not be cut the end and close, and causes valve leak.
Summary of the invention
The purpose of this utility model is in order to solve the problem of the poor reliability that exists in the existing stop valve, and a kind of simple in structure, stop valve that reliability is high is provided.
Technological scheme:
First technological scheme that realizes the utility model purpose is: a kind of stop valve, comprise valve body, valve seat, go up valve block, lower valve and controlling rod, lower valve is fixed on the valve seat, be provided with position-limit mechanism between valve body and the controlling rod, it is characterized in that also being provided with between valve block and the lower valve middle valve plate, it is corresponding with the flow channel of upper and lower valve block that middle valve plate is provided with flow channel, and last valve block is provided with the shifting block that resets, and middle valve plate is provided with to reset dials the wing.When valve was in open mode, last valve block, middle valve plate, lower valve three's flow channel communicated; When valve is in closed condition, the flow channel dislocation between flow channel between last valve block and the middle valve plate or middle valve plate and the lower valve; If the frictional force between last valve block and the middle valve plate is less than the frictional force between middle valve plate and the lower valve, then close in the closed procedure, if there is impurity to be stuck between the flow channel of valve block and middle valve plate, last valve block drives the middle valve plate motion by this impurity, flow channel dislocation and realization between middle valve plate and the lower valve are closed, next time is when opening valve, the shifting block that resets of last valve block is stirred resetting of middle valve plate and is dialled the wing, the drive middle valve plate resets, and valve block, middle valve plate and lower valve three's flow channel is communicated with and makes valve open and washes away impurity.
Described stop valve is characterized in that being provided with in the described valve body reset position that limit dais limits middle valve plate.If the frictional force between last valve block and the middle valve plate is greater than the frictional force between middle valve plate and the lower valve, during throttle down, if impurity is stuck between the flow channel of middle valve plate and lower valve, then when last valve plate movement during to the flow channel dislocation of the flow channel of last valve block and middle valve plate, valve is just closed, next time is when opening valve, group wing that resets of middle valve plate withstands the limit dais on the valve body, and the flow channel that makes valve block, middle valve plate and lower valve three resets to and is communicated with the position, so that valve open and wash away impurity.
Described stop valve is characterized in that being provided with seal ring between described lower valve and the valve seat.
Second technological scheme that realizes the utility model purpose is: a kind of stop valve, comprise valve body, valve seat, go up valve block, lower valve and controlling rod, lower valve is fixed on the valve seat, it is characterized in that also being provided with between valve block and the lower valve middle valve plate, it is corresponding with the flow channel of upper and lower valve block that middle valve plate is provided with flow channel, middle valve plate is provided with the block wing that resets, this resets and is provided with Returnning spring between block wing and the valve body, and the elastic force direction of this Returnning spring makes the flow channel on the middle valve plate communicate with flow channel on the lower valve.When valve was in open mode, last valve block, middle valve plate, lower valve three's flow channel communicated; When valve is in closed condition, the flow channel dislocation between flow channel between last valve block and the middle valve plate or middle valve plate and the lower valve; In closing closed procedure, if there is impurity to be stuck between the flow channel of valve block and middle valve plate, then go up valve block and drive the middle valve plate motion by this impurity, the block wing compression reseting spring that resets on the middle valve plate, flow channel between middle valve plate and the lower valve misplaces and realizes closing, next time is when opening valve, last valve block is removed by the power that impurity is added on the middle valve plate, the block wing that resets on the middle valve plate resets middle valve plate under the effect of Returnning spring power, thereby valve block, middle valve plate and lower valve three's flow channel is communicated with and makes valve open and wash away impurity.
Described stop valve is characterized in that being provided with seal ring between described lower valve and the valve seat.
Beneficial effect:
Owing to adopted technological scheme described in the utility model, between upper and lower valve block, added reducible middle valve plate, flow channel between flow channel in the utilization between valve block and the middle valve plate or middle valve plate and the lower valve misplaces and realizes closing of valve, it is few that impurity in the current blocks the chance of flow channel between valve block and the middle valve plate and the flow channel between middle valve plate and the lower valve simultaneously, so, this valve can prevent that impurity is to the influence of valve in the sealing, improved the reliability height of valve, and it is simple in structure.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is an embodiment's of a stop valve described in the utility model internal structure schematic representation.
Fig. 2 is a plan view of going up valve block, middle valve plate and lower valve when adopting the utility model first technological scheme among Fig. 1 embodiment.
Fig. 3 is a plan view of going up valve block, middle valve plate and lower valve when adopting the utility model second technological scheme among Fig. 1 embodiment.
Fig. 4 is a three-dimensional exploded view of going up valve block, middle valve plate and lower valve among Fig. 2.
Fig. 5 is another embodiment's of a stop valve described in the utility model internal structure schematic representation.
Fig. 6 is the view when having during valve closing impurity to block flow channel between valve block and the middle valve plate among Fig. 5 embodiment.
Among the figure 11, valve body, 111, water outlet, 114, spring, 112,113,115, limit dais, 12, valve seat, 121, water intake, 21, transmission shaft, 22, controlling rod, 23, seal ring, 31, lower valve, 32, middle valve plate, 322, dial the wing, 323, aileron, 33, last valve block, 332, shifting block, 324, block wing, 311,321,331, flow channel, 41, valve body, 411, water outlet, 42, valve seat, 421, water intake, 53, seal ring, 61, lower valve, 611, flow channel, 62, middle valve plate, 621, flow channel, 622, groove, 63, last valve block, 631, flow channel, 632, shifting block, 633, controlling rod, 7, impurity.
Embodiment:
Embodiment one, in conjunction with Fig. 1, Fig. 2 and Fig. 4 are as seen, described stop valve, comprise valve body 11, valve seat 12, last valve block 33, lower valve 31 and controlling rod 22, valve body is provided with water outlet 111, body cavity is provided with transmission shaft 21 from the inside to the outside, last valve block 33, middle valve plate 32, lower valve 31, seal ring 23 and valve seat 12, between valve seat and valve body with being threaded, last valve block 33, middle valve plate 32, the coaxial placement of lower valve 31 threes, middle valve plate is provided with flow channel 321 with last, the flow channel 311 of lower valve, 331 is corresponding, last valve block is provided with the shifting block 332 that resets, and middle valve plate is provided with to reset dials the wing 322 and aileron 323; Figure 1 shows that stop valve is in open mode, the flow channel 331,321,311 of last valve block 33, middle valve plate 32, lower valve 31, communicate that current flow to the water outlet 111 of valve body through each flow channel 311,321,331 from the water intake 121 of valve seat; During throttle down, rotation control rod 22, transmission shaft 21 drives goes up valve block 33 rotations, flow channel 331 is not communicated with 321 dislocation, realize valve closing, equidirectional when being rotated further transmission shaft 21, the aileron 323 that shifting block 332 can drive on the middle valve plate rotates, make also dislocation between the flow channel 321 and 311 between middle valve plate 32 and the lower valve 31, will open valve this moment, then can pass through controlling rod 22 backward rotation transmission shafts 21, when last valve block 33 turns to flow channel 331 and 321 is communicated with, resetting on the shifting block 332 on the last valve block and the middle valve plate dialled the wing 322 and contact and promote middle valve plate and be turned back to its flow channel 321 and communicate (as shown in Figure 1) with flow channel 311 on the lower valve, and Fig. 2 shows the spacing position of group wing 322 that resets of 115 pairs of middle valve plates of limit dais; If in closing closed procedure, there is impurity to be stuck between the flow channel 331 and 321 of valve block 33 and middle valve plate 32, then go up valve block 33 and in rotation process, drive middle valve plate 32 motions by impurity, make flow channel 321 and 311 dislocation between middle valve plate and the lower valve and realize closing, next time is when opening valve, the shifting block 332 that resets of last valve block 33 is stirred resetting of middle valve plate and is dialled the wing 322, the drive middle valve plate resets, and valve block, middle valve plate and lower valve three's flow channel is communicated with and makes valve open and washes away impurity.Certainly the aileron in the present embodiment is omissible, following situation can appear in this moment, when the frictional force between last valve block and the middle valve plate during less than the frictional force between middle valve plate and the lower valve, in the process of normal throttle down, have only the flow channel between last valve block and the middle valve plate to close, if when having impurity to be stuck between the flow channel of the flow channel of valve block and middle valve plate, then the flow channel between middle valve plate and the lower valve is just closed; Otherwise,, during then normal throttle down, be the flow channel mutual dislocation of the flow channel and the lower valve of middle valve plate if go up frictional force between valve block and the middle valve plate greater than the frictional force between middle valve plate and the lower valve.The effect of limit dais 115 is the position-limiting actions that resetted to middle valve plate.
Embodiment two, Fig. 1 also can be used as the cut-away view of the utility model second technological scheme, the plan view of valve block, middle valve plate and lower valve as shown in Figure 3 on just in this scheme, it is to establish block wing 324 on middle valve plate, be provided with Returnning spring 114 between block wing 324 and the valve body, at 324 position-limiting actions of block wing that also are provided with on the valve body on 113 pairs of middle valve plates of limit dais, 112 directions of opening to last valve block of another limit dais play position-limiting action.When normally closing in the present embodiment, just go up the valve block action, the flow channel of valve block and the flow channel of middle valve plate are staggered, realize closing of stop valve, only in closing closed procedure, when having impurity to be stuck between the flow channel of the flow channel of valve block and middle valve plate, just driving middle valve plate rotates, make the flow channel dislocation of the flow channel and the lower valve of middle valve plate, to close stop valve, and when opening stop valve once more, middle valve plate resets under the effect of Returnning spring 114, drives and need not go up valve block.
The last valve block among embodiment one and the embodiment two and the relative movement of middle valve plate are for rotatablely moving.Its controlling rod can link with motor drive mechanism and realize electronic control.
Embodiment three, and Fig. 5 is another embodiment's of a stop valve described in the utility model internal structure schematic representation.In conjunction with Fig. 6 as seen, described stop valve, comprise valve body 41, valve seat 42, go up valve block 63, lower valve 61 and controlling rod 633, valve body is provided with water outlet 411, body cavity is provided with valve block 63, middle valve plate 62, lower valve 61, seal ring 53 and valve seat 42 from the inside to the outside, it is corresponding with the flow channel 611,631 of upper and lower valve block that middle valve plate is provided with flow channel 621, and middle valve plate is provided with groove 622, and last valve block is provided with the shifting block 632 that resets that stretches in this groove 622; Figure 5 shows that stop valve is in the state when opening; During throttle down, 633 orders of pulling controlling rod are gone up valve block 63 and are moved to right, flow channel 631 is not communicated with 621 dislocation, realize valve closing, when equidirectional continuation spurred controlling rod 633, shifting block 632 drove middle valve plates 62 and moves to right, make also dislocation between the flow channel 621 and 611 between middle valve plate and the lower valve, will open valve this moment, then can reset by push lever 633, and shifting block 632 drives middle valve plate and together resets to state shown in Figure 5; Fig. 6 is the closed condition of closing when having impurity 7 to be stuck between flow channel 631 and 621 in the closed procedure.
In fact, the relative movement of last valve block of the embodiment three and middle valve plate is a straight line motion.The part of last valve block is used as controlling rod, that is to say, controlling rod in the utility model and last valve block can be the integrated type structures, also can be split-type structural; If last valve block directly and motor drive mechanism such as electromagnet link, then can realize electronic control.
Be the utility model second technological scheme after adding Returnning spring between middle valve plate in embodiment three and the valve body, this is that those skilled in the art are all attainable in the above-described embodiments, does not do to state at this more.
Claims (5)
1, a kind of stop valve, comprise valve body, valve seat, go up valve block, lower valve and controlling rod, it is characterized in that also being provided with between valve block and the lower valve middle valve plate, it is corresponding with the flow channel of upper and lower valve block that middle valve plate is provided with flow channel, last valve block is provided with the shifting block that resets, and middle valve plate is provided with to reset dials the wing.
2,, it is characterized in that being provided with in the described valve body reset position that limit dais limits middle valve plate according to the described stop valve of claim 1.
3, according to claim 1 or 2 described stop valves, it is characterized in that being provided with seal ring between described lower valve and the valve seat.
4, a kind of stop valve, comprise valve body, valve seat, go up valve block, lower valve and controlling rod, it is characterized in that also being provided with between valve block and the lower valve middle valve plate, it is corresponding with the flow channel of upper and lower valve block that middle valve plate is provided with flow channel, middle valve plate is provided with the block wing that resets, this resets and is provided with Returnning spring between block wing and the valve body, and the elastic force direction of this Returnning spring makes the flow channel on the middle valve plate communicate with flow channel on the lower valve.
5,, it is characterized in that being provided with seal ring between described lower valve and the valve seat according to the described stop valve of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420044979 CN2705671Y (en) | 2004-04-18 | 2004-04-18 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420044979 CN2705671Y (en) | 2004-04-18 | 2004-04-18 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2705671Y true CN2705671Y (en) | 2005-06-22 |
Family
ID=34850963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420044979 Expired - Lifetime CN2705671Y (en) | 2004-04-18 | 2004-04-18 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2705671Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392296C (en) * | 2004-04-24 | 2008-06-04 | 麦广海 | Cut-off valve |
| CN108952170A (en) * | 2018-07-11 | 2018-12-07 | 中国二十二冶集团有限公司 | Assembled architecture grout sleeve grouting control switch and its application method |
-
2004
- 2004-04-18 CN CN 200420044979 patent/CN2705671Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392296C (en) * | 2004-04-24 | 2008-06-04 | 麦广海 | Cut-off valve |
| CN108952170A (en) * | 2018-07-11 | 2018-12-07 | 中国二十二冶集团有限公司 | Assembled architecture grout sleeve grouting control switch and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080604 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080604 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |