CN202867858U - Large-flow pilot-operated type plane stop valve - Google Patents
Large-flow pilot-operated type plane stop valve Download PDFInfo
- Publication number
- CN202867858U CN202867858U CN 201220318711 CN201220318711U CN202867858U CN 202867858 U CN202867858 U CN 202867858U CN 201220318711 CN201220318711 CN 201220318711 CN 201220318711 U CN201220318711 U CN 201220318711U CN 202867858 U CN202867858 U CN 202867858U
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- valve body
- pilot
- stop valve
- flow
- handwheel
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- Expired - Fee Related
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Abstract
The utility model provides a large-flow pilot-operated type plane stop valve, which comprises a stop valve body, a pilot valve body connected with the stop valve body, a valve core arranged in the stop valve body, a handwheel connected outside the pilot valve body and a sealing gasket arranged in the pilot valve body. The large-flow pilot-operated type plane stop valve is characterized in that the stop valve body and the pilot valve body are in split connection by adopting a bolt; a push rod is arranged in the pilot valve body, one end of the push rod penetrates through the pilot valve body and is connected with the handwheel, and the other end of the push rod is connected with one side of a sealed ball; and the other side of the sealed ball is connected with a spring A, a control cavity is arranged under the sealed ball, a drainage passage and a liquid charging passage are respectively arranged on two sides of the outlet of the control cavity, and the outer side of the control cavity is connected with a spring B. The whole valve adopts the pilot-operated type structure, so that small flow can be used for controlling the large flow, and the flow is not limited by the stroke of the handwheel; and due to the split structure of a pilot valve and a stop valve, the maintenance is convenient.
Description
Technical field
The utility model relates to valve technology field, relates in particular to large-flow-rate pilot formula Plane stop valve.
Background technique
The widely used Plane stop valve of hydraulic support mostly adopts the mode of hand thread mechanical adjustment valve port opening at present.Adopt the valve of this structure, along with the increase of flow and pressure, the frictional force of screw thread increases, and the operational torque of handle significantly increases; The opening degree of valve is determined by the rotatable handle number of turns; The valve seal effect guarantees by the moment that screws handle, and during operating cost, effort, sealability is unreliable, guarantee the use function of valve, needs to add personal factor, increases underground labour's labor intensity.For this situation, the structure of using more solution and being at valve increases hydraulic balance device to reduce operational torque, and the valve that has adopts head thread to reduce operational torque at the rotatable handle place, and the valve that has then adopts double thread screw to reduce rotating cycle.But because the structural limitations of direct-acting type spool principle, the operational torque of valve is still larger, and the on-off action of valve also will rotate a few just can be finished, and sealing effect does not improve, and still need lean on the moment of rotatable handle to guarantee.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of large-flow-rate pilot formula Plane stop valve, comprise checking-valve body, the guide valve blocks that is connected with checking-valve body, be arranged on the spool in the checking-valve body, be connected to the outer handwheel of described guide valve blocks, be arranged on the sealing gasket in the guide valve blocks, it is characterized in that described checking-valve body and guide valve blocks adopt the bolt split to be connected, push rod is set in the guide valve blocks, push rod one end passes guide valve blocks and is connected with handwheel, the other end is connected with ball sealer one side, ball sealer opposite side linking springs A, its below arranges control chamber, described control chamber outlet both sides arrange respectively drainage passage and reservoir channel, outside linking springs B.
The beneficial effects of the utility model are: whole valve adopts the leading type structure, can realize using small flow controlling large flow, and flow is not subjected to the travel limits of handwheel; Reduce the rotating cycle of handwheel; Effectively reduce operational torque, the impact that operational torque is not changed by flow, pressure substantially; The opening and closing of stop valve are once finished, and open and close is rapid, and the stroke with handwheel does not change.The Split type structure of pilot valve and stop valve, convenient for maintaining.
Description of drawings
Fig. 1 is structural drawing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further explained, such as figure, 1-checking-valve body, 2-guide valve blocks, 3-spool, 4-control chamber, 5-spring B, 6-handwheel, 7-push rod, 8-ball sealer, 9-sealing gasket, 10-spring A, 11-drainage passage, 12-reservoir channel.
Embodiment
As shown in Figure 1, connect guide valve blocks 2 in checking-valve body 1 upper end, spool 3 is arranged in the checking-valve body 1, is provided with sealing gasket 9 in the described guide valve blocks 2, the outside handwheel 6 that connects, handwheel 6 is connected with push rod 7 one ends that pass guide valve blocks 2, the other end of push rod 7 is connected with ball sealer 8, and at the opposite side linking springs A10 of ball sealer 8, ball sealer 8 belows arrange control chamber 4, in control chamber 4 both sides drainage passage 11 and reservoir channel 12 are set respectively, control chamber 4 outside linking springs B5.
In concrete using process, handwheel 6 turns clockwise, push rod 7 drives ball sealer 8 and moves right press seal pad 9, cut off the high voltage control liquid of reservoir channel 12 and control chamber 4, spool 3 overcomes spring B under the highly pressurised liquid effect of liquid entering hole effect moves upward, control chamber 4 interior liquid are discharged by drainage passage 11 simultaneously, and spool is opened fully, and liquid flows to liquid outlet by liquid entering hole.Be rotated counterclockwise handwheel 6, ball sealer 8 resets to left movement under the effect of spring A10, cutting-off controlling chamber 4 and drainage passage 11, and highly pressurised liquid is in reservoir channel 12 ramp metering chambeies 4, and spool 3 two ends liquid forces are identical, close under the effect of spring A.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (1)
1. large-flow-rate pilot formula Plane stop valve, comprise checking-valve body (1), the guide valve blocks (2) that is connected with checking-valve body (1), be arranged on the spool (3) in the checking-valve body (1), be connected to the outer handwheel (6) of described guide valve blocks (2), be arranged on the sealing gasket (9) in the guide valve blocks (2), it is characterized in that described checking-valve body (1) and guide valve blocks (2) adopt the bolt split to be connected, push rod (7) is set in the guide valve blocks (2), push rod (7) one ends pass guide valve blocks (2) and are connected with handwheel (6), the other end is connected with ball sealer (8) one sides, ball sealer (8) opposite side linking springs A(10), its below arranges control chamber (4), described control chamber (4) outlet both sides arrange respectively drainage passage (11) and reservoir channel (12), outside linking springs B(5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318711 CN202867858U (en) | 2012-07-03 | 2012-07-03 | Large-flow pilot-operated type plane stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318711 CN202867858U (en) | 2012-07-03 | 2012-07-03 | Large-flow pilot-operated type plane stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867858U true CN202867858U (en) | 2013-04-10 |
Family
ID=48034580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220318711 Expired - Fee Related CN202867858U (en) | 2012-07-03 | 2012-07-03 | Large-flow pilot-operated type plane stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178621A (en) * | 2016-03-11 | 2017-09-19 | 浙江三花智能控制股份有限公司 | A kind of refrigeration system stop valve and its valve rod |
| CN110030400A (en) * | 2019-04-16 | 2019-07-19 | 鑫矿液压科技有限公司 | A kind of guide's high pressure clip shut-off valve |
-
2012
- 2012-07-03 CN CN 201220318711 patent/CN202867858U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178621A (en) * | 2016-03-11 | 2017-09-19 | 浙江三花智能控制股份有限公司 | A kind of refrigeration system stop valve and its valve rod |
| CN107178621B (en) * | 2016-03-11 | 2020-03-10 | 浙江三花智能控制股份有限公司 | Stop valve for refrigerating system and valve rod thereof |
| CN110030400A (en) * | 2019-04-16 | 2019-07-19 | 鑫矿液压科技有限公司 | A kind of guide's high pressure clip shut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20130703 |