CN220082222U - Pressure regulating pilot valve - Google Patents
Pressure regulating pilot valve Download PDFInfo
- Publication number
- CN220082222U CN220082222U CN202321024687.3U CN202321024687U CN220082222U CN 220082222 U CN220082222 U CN 220082222U CN 202321024687 U CN202321024687 U CN 202321024687U CN 220082222 U CN220082222 U CN 220082222U
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- valve
- water outlet
- spring
- water inlet
- water
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 239000000872 buffer Substances 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract 1
- 210000000214 mouth Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Safety Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a pressure regulating pilot valve, which relates to the field of valves and comprises a valve body and a valve cover arranged on the valve body, wherein a water inlet and a water outlet are respectively formed on two sides of the valve body, the water inlet is communicated with a pressure cavity, and the water outlet is communicated with a water outlet cavity; a movable gap is formed in the valve body, a valve core is arranged in the movable gap in a lifting manner, a driving piece for driving the valve core to lift is arranged on the valve cover, the driving piece is connected with the valve core through an elastic piece, the lower side of the valve core is connected with a valve block for controlling the communication between the water inlet and the water outlet, and the water outlet is communicated with the bottom side of the movable gap; when the valve block descends, the water inlet and the water outlet are communicated; the valve body is located above the valve block and is provided with an abutting part, and when the valve block ascends to abut against the abutting part, the water inlet and the water outlet are separated. The utility model is favorable for preventing the damage of water spraying equipment at the side of a system pipe network caused by the overlarge pressure of the water outlet cavity by adjusting the pressure of the water outlet cavity.
Description
Technical Field
The utility model relates to the field of valves, in particular to a pressure regulating pilot valve.
Background
The deluge valve is a control valve for automatically supplying water by controlling a fire water supply pipeline, is used for connecting water supply facilities (a fire water pump, a fire water tank and the like) and a system pipe network, and can be opened in an electric, hydraulic, pneumatic and mechanical mode.
The deluge valve comprises a water supply cavity, a pressure cavity and a water outlet cavity, wherein a valve cover is arranged on the outer side of the pressure cavity, and a diaphragm is arranged in the pressure cavity. Under the quasi-operating condition, the water supply cavity supplies water to the pressure cavity, the water pressure in the pressure cavity is balanced with the water pressure of the water supply cavity, the deluge valve is in a closed state, when a fire disaster occurs, the pressure of the pressure cavity is relieved, the pressure of one side of the water supply cavity is larger than that of the pressure cavity, the diaphragm can be gradually fully opened, water is supplied to one side of the water outlet cavity, and accordingly fire extinguishing operation is achieved.
However, in practice, if the water pressure entering the water outlet cavity is too high and exceeds the rated bearing pressure of the water spraying equipment at the system pipe network side, the situation of damage of the water spraying equipment can occur, and the fire-fighting operation is seriously affected.
Therefore, the pressure regulating pilot valve is required to be invented, the pressure of the water outlet cavity is regulated, and the damage of water spraying equipment caused by overlarge water pressure of the water outlet cavity is prevented.
Disclosure of Invention
In order to realize the adjustment of the pressure of the water outlet cavity and prevent the damage of water spraying equipment at the side of a system pipe network caused by the excessive pressure of the water outlet cavity, the utility model provides a pressure regulating pilot valve.
The utility model provides a pressure regulating pilot valve which adopts the following technical scheme:
the pressure regulating pilot valve comprises a valve body and a valve cover arranged on the valve body, wherein a water inlet and a water outlet are respectively formed on two sides of the valve body, the water inlet is communicated with a pressure cavity, and the water outlet is communicated with a water outlet cavity; a movable gap is formed in the valve body, a valve core is arranged in the movable gap in a lifting manner, a driving piece for driving the valve core to lift is arranged on the valve cover, the driving piece is connected with the valve core through an elastic piece, the lower side of the valve core is connected with a valve block for controlling the communication between the water inlet and the water outlet, and the water outlet is communicated with the bottom side of the movable gap; when the valve block descends, the water inlet and the water outlet are communicated; the valve body is located above the valve block and is provided with an abutting part, and when the valve block ascends to abut against the abutting part, the water inlet and the water outlet are separated.
By adopting the technical scheme, the elastic piece is driven by the driving piece to move downwards, so that the valve block descends, and the water inlet and the water outlet are communicated; in fact, the water inlet is communicated with the pressure cavity through the pipeline, the switching valve is arranged on the corresponding pipeline, when a fire disaster occurs, the switching valve is opened, water in the pressure cavity is discharged from the water inlet and subjected to pressure relief, the diaphragm is gradually opened, water in the water supply cavity can enter the water outlet cavity, the water pressure in the water outlet cavity is gradually increased, water in the water outlet cavity can enter the water outlet and enter the movable gap from the water outlet, after the water pressure in the water outlet cavity reaches a certain value, the valve core can be pushed to move upwards, the valve block is driven to rise until the valve block is abutted to the abutting part, the pressure regulating pilot valve is closed at the moment, the pressure cavity is not subjected to pressure relief, the diaphragm stops moving, and the pressure of the water outlet cavity is stable. The moving distance of the elastic piece is changed through the driving piece, so that the pressure of the water outlet cavity is changed, the pressure of the water outlet cavity is adjusted, and the damage of water spraying equipment at the side of a system pipe network caused by overlarge pressure of the water outlet cavity is avoided.
Preferably, the driving piece is a screw rod, the screw rod is in threaded connection with the valve cover, and the lower end part of the screw rod is connected with the elastic piece.
Through adopting above-mentioned technical scheme, rotate the screw rod, realize the removal of elastic component, can realize the lift removal of case, and then drive the removal of valve piece, realize opening of pressure regulating pilot valve.
Preferably, the elastic piece is arranged as a first spring, one end of the first spring is connected with the screw rod, and the other end of the first spring is connected with the valve core.
Through adopting above-mentioned technical scheme, when the screw rod rotates, under the compression effect of first spring, drive the case and move down, can make the pressure regulating pilot valve open, when the water pressure of play water chamber department is greater than the elasticity of first spring, the case rises this moment, can close the pressure regulating pilot valve.
Preferably, a lifting gap is formed in the valve cover, a connecting block is arranged in the lifting gap in a lifting manner, the lower end of the screw rod is in butt joint with the connecting block, a first boss is arranged on the lower side of the connecting block, a second boss is arranged on the upper side of the valve core, one end of the first spring is sleeved on the first boss, and the other end of the first spring is sleeved on the second boss.
Through adopting above-mentioned technical scheme, when the screw rod promotes the connecting block and goes up and down, realize the compression of first spring, realize the removal of case, the both ends of first spring are overlapped respectively and are established on first boss and second boss, and whole assembly is simple, has reduced the degree of difficulty of manufacturing procedure.
Preferably, the bottom of valve body is formed with the intercommunication chamber, the intercommunication chamber is located the below of water inlet and delivery port, the upside of intercommunication chamber is formed with the intercommunication mouth with the water inlet intercommunication, intercommunication chamber and delivery port intercommunication, the valve piece goes up and down to set up in the intercommunication intracavity for the jam intercommunication mouth, butt portion forms and communicates mouthful department.
Through adopting above-mentioned technical scheme, when the valve piece moves downwards, the intercommunication mouth makes water inlet and delivery port intercommunication, realizes opening of pressure regulating pilot valve, and the water pressure pushes up the valve core and upwards moves when the play water intracavity for the valve piece is blocked up in intercommunication mouth department, realizes closing of pressure regulating pilot valve.
Preferably, the valve body is located the bottom of intercommunication chamber and is provided with the second spring along vertical direction, second spring one end is connected with the valve body, the other end of second spring is connected with the valve piece.
By adopting the technical scheme, the second spring is utilized to apply upward force to the valve block, so that the valve block is abutted against the communication port and is more tightly attached to the communication port, and the tightness is improved; the cooperation first spring helps making the valve piece can slowly open and close, improves holistic life.
Preferably, the valve body is located the bottom of intercommunication chamber and is formed with the holding tank, the downside of valve piece is provided with the third lug, the one end of second spring is located the holding tank, the week side at the third lug is established to the other end cover of second spring.
Through adopting above-mentioned technical scheme, the one end of second spring is restrained through the holding tank, and the other end is restrained through the third lug, in the actual assembly process, easy operation is convenient.
Preferably, a vertical avoidance groove is formed in the valve body, the downside of the avoidance groove is communicated with the communication port, the water inlet is communicated with the avoidance groove, a valve rod is arranged in the avoidance groove, the upper end of the valve rod is connected with the valve core, the lower end of the valve rod is connected with the valve block, and an annular buffer block is arranged on the downside of the valve rod and located in the communication port.
Through adopting above-mentioned technical scheme, after the water outlet cavity pressure stabilizes, the pressure regulating pilot valve is closed, and the water inlet still communicates with the pressure chamber this moment, utilizes the buffer block, buffers water, helps preventing that the water of water inlet from directly acting on the valve piece for the valve piece takes place to remove, changes the state of pressure regulating pilot valve, and then makes out that oral cavity pressure changes, helps improving the stability of water outlet cavity pressure promptly.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. the elastic piece is driven to move downwards by the driving piece, so that the valve block moves downwards, the water inlet and the water outlet are communicated, when a fire disaster occurs, water in the pressure cavity flows from the water inlet to the water outlet, pressure is relieved, the diaphragm is gradually opened, the pressure of the water outlet cavity is gradually increased, the valve core is pushed to move upwards until the valve block blocks the communication port, the water pressure of the water outlet cavity is stable at the moment, and the upward moving force of the valve core is changed at the moment by changing the moving distance of the elastic piece, so that the regulation of the water cavity pressure is realized;
2. two ends of the first spring are respectively sleeved on the peripheral sides of the first boss and the second boss, one side of the second spring is inserted in the accommodating groove, the other end of the second spring is sleeved on the peripheral side of the third boss, and the whole assembly is simpler;
3. the buffer block is used for buffering water at the water inlet side, so that water is prevented from directly acting on the valve block, the opening and closing states of the pressure regulating pilot valve are affected, and the pressure of the water outlet cavity is further affected.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of an embodiment of the present utility model;
fig. 2 is a partial enlarged view of a in fig. 1, mainly showing the structure of the buffer block.
Reference numerals: 1. a valve body; 11. a water inlet; 12. a water outlet; 13. a clearance gap; 14. an avoidance groove; 15. a receiving groove; 2. a valve cover; 21. lifting gaps; 3. a valve core; 31. a second bump; 4. a driving member; 41. a screw; 5. an elastic member; 51. a first spring; 6. a connecting block; 61. a first bump; 7. a communication chamber; 71. a communication port; 72. an abutting portion; 8. a valve block; 81. a third bump; 9. a valve stem; 91. a buffer block; 10. and a second spring.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-2.
The embodiment of the utility model discloses a pressure regulating pilot valve.
Referring to fig. 1, the pressure regulating pilot valve comprises a valve body 1 and a valve cover 2 arranged on the valve body 1, wherein a water inlet 11 and a water outlet 12 are respectively formed on two sides of the valve body 1, the water inlet 11 is communicated with a pressure cavity through a pipeline, a switch valve is arranged on the pipeline, the water outlet 12 is communicated with a water outlet cavity, a valve core 3 is arranged in the valve body 1 in a lifting manner, a driving piece 4 for driving the valve core 3 to lift is arranged on the valve cover 2, the driving piece 4 is arranged as a screw 41, the screw 41 is vertically arranged and is in threaded connection with the valve cover 2, an elastic piece 5 is arranged between the screw 41 and the valve core 3, and the elastic piece 5 is arranged as a first spring 51; a lifting gap 21 is formed in the valve cover 2, a connecting block 6 is arranged in the lifting gap 21 in a lifting manner, the lower end of the screw 41 is in interference fit with the connecting block 6, and a first lug 61 is integrally formed on the lower side of the connecting block 6; a movable gap 13 communicated with the lifting gap 21 is formed in the valve body 1, the valve core 3 is arranged in the movable gap 13 in a lifting manner, a second lug 31 is integrally formed on the upper side of the valve core 3, the first spring 51 is vertically arranged, the upper side of the first spring 51 is sleeved on the periphery of the first lug 61, and the lower side of the first spring 51 is sleeved on the periphery of the second lug 31; the bottom of the movable gap 13 is communicated with the water outlet 12.
The bottom of the valve body 1 is provided with a communication cavity 7, the communication cavity 7 is positioned below the water inlet 11 and the water outlet 12, a communication port 71 communicated with the water inlet 11 is formed on the upper side of the valve body 1 positioned on the communication cavity 7, the communication cavity 7 is communicated with the water outlet 12, and an abutting part 72 is formed at the communication port 71; the valve block 8 is arranged in the communication cavity 7 in a lifting manner, the vertical avoidance groove 14 is formed in the valve body 1, the avoidance groove 14 is communicated with the water inlet 11, the valve rod 9 is arranged in the avoidance groove 14, the upper end of the valve rod 9 is connected with the valve core 3, the lower end of the valve rod 9 is connected with the valve block 8, the valve block 8 is lifted up to be abutted with the abutting part 72 to block the communication port 71, the valve block 8 is lifted down, the communication port 71 is opened, and the water inlet 11 is communicated with the water outlet 12.
The valve body 1 is located the bottom of intercommunication chamber 7 and is formed with holding tank 15, holds in the holding tank 15 and has second spring 10, and the downside integrated into one piece of valve piece 8 has third lug 81, and the upside cover of second spring 10 is established in the week side of third lug 81.
The screw 41 is screwed in advance so that the valve block 8 is separated from the communication port 71, and at this time, the first spring 51 is in a compressed state, and a certain pressure is applied, and this pressure value is set to F1. When a fire disaster occurs, the switch valve is opened, water in the pressure cavity flows from the water inlet 11 to the water outlet 12 for pressure relief, the opening degree of the diaphragm is gradually increased, the pressure of the water outlet cavity is gradually increased, the water in the water outlet cavity enters the movable gap 13 from the water outlet 12, the water pressure of the water outlet cavity is set to be F2, when F2 is larger than F1, the valve core 3 moves upwards to drive the valve block 8 to move upwards, the communication port 71 is closed, and the water pressure of the water outlet cavity is stable. The pressure F2 of the water outlet cavity can be adjusted by changing the pressure value F1 of the first spring 51. Through the regulation to pressure chamber water pressure, help preventing because of water supply side water pressure is too big, lead to the water cavity pressure too great, damage the water spraying equipment of system pipe network side.
Referring to fig. 1 and 2, the valve rod 9 is located the inside integrated into one piece of intercommunication department and has annular buffer block 91, buffer block 91 week side is being to be the slope downwards setting along the direction of keeping away from valve rod 9, after the water outlet chamber pressure is stable, the pressure regulating pilot valve is closed, water inlet 11 still communicates with the pressure chamber this moment, when water falls on buffer block 91, utilize the effect of inclined plane, can reduce downward effort, and then reduce the possibility that valve block 8 removed, help preventing that valve block 8 from removing promptly, change the state of pressure regulating pilot valve, and then lead to the water outlet chamber to change.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. The utility model provides a pressure regulating pilot valve which characterized in that: the valve comprises a valve body (1) and a valve cover (2) arranged on the valve body (1), wherein a water inlet (11) and a water outlet (12) are respectively formed on two sides of the valve body (1), the water inlet (11) is communicated with a pressure cavity, and the water outlet (12) is communicated with a water outlet cavity; a movable gap (13) is formed in the valve body (1), a valve core (3) is arranged in the movable gap (13) in a lifting manner, a driving piece (4) for driving the valve core (3) to lift is arranged on the valve cover (2), the driving piece (4) is connected with the valve core (3) through an elastic piece (5), a valve block (8) is connected to the lower side of the valve core (3) and used for controlling the communication between the water inlet (11) and the water outlet (12), and the water outlet (12) is communicated with the bottom side of the movable gap (13); when the valve block (8) descends, the water inlet (11) is communicated with the water outlet (12); the valve body (1) is located above the valve block (8) and is provided with an abutting portion (72), and when the valve block (8) ascends to abut against the abutting portion (72), the water inlet (11) and the water outlet (12) are separated.
2. A pressure regulating pilot valve as claimed in claim 1, wherein: the driving piece (4) is arranged as a screw rod (41), the screw rod (41) is in threaded connection with the valve cover (2), and the lower end part of the screw rod (41) is connected with the elastic piece (5).
3. A pressure regulating pilot valve as claimed in claim 1, wherein: the elastic piece (5) is arranged to be a first spring (51), one end of the first spring (51) is connected with the screw rod (41), and the other end of the first spring (51) is connected with the valve core (3).
4. A pressure regulating pilot valve as claimed in claim 3, wherein: the valve cover is characterized in that a lifting gap (21) is formed in the valve cover (2), a connecting block (6) is arranged in the lifting gap (21) in a lifting mode, the lower end portion of the screw rod (41) is in butt joint with the connecting block (6), a first boss is arranged on the lower side of the connecting block (6), a second boss is arranged on the upper side of the valve core (3), one end of the first spring (51) is sleeved on the first boss, and the other end of the first spring (51) is sleeved on the second boss.
5. A pressure regulating pilot valve as claimed in claim 1, wherein: the bottom of valve body (1) is formed with intercommunication chamber (7), intercommunication chamber (7) are located the below of water inlet (11) and delivery port (12), the upside of intercommunication chamber (7) is formed with intercommunication mouth (71) with water inlet (11) intercommunication, intercommunication chamber (7) and delivery port (12) intercommunication, valve piece (8) go up and down to set up in intercommunication chamber (7) for jam intercommunication mouth (71), butt portion (72) form and intercommunication mouth (71) department.
6. A pressure regulating pilot valve as defined in claim 5, wherein: the valve body (1) is located the bottom of intercommunication chamber (7) and is provided with second spring (10) along vertical direction, second spring (10) one end is connected with valve body (1), the other end of second spring (10) is connected with valve piece (8).
7. A pressure regulating pilot valve as defined in claim 6, wherein: the valve body (1) is located the bottom of intercommunication chamber (7) and is formed with holding tank (15), the downside of valve piece (8) is provided with third lug (81), the one end of second spring (10) is located holding tank (15), the week side at third lug (81) is established to the other end cover of second spring (10).
8. A pressure regulating pilot valve as defined in claim 5, wherein: the valve is characterized in that a vertical avoidance groove (14) is formed in the valve body (1), the lower side of the avoidance groove (14) is communicated with the communication port (71), the water inlet (11) is communicated with the avoidance groove (14), a valve rod (9) is arranged in the avoidance groove (14), the upper end of the valve rod (9) is connected with the valve core (3), the lower end of the valve rod (9) is connected with the valve block (8), and an annular buffer block (91) is arranged on the lower side of the valve rod (9), and the buffer block (91) is located in the communication port (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321024687.3U CN220082222U (en) | 2023-04-28 | 2023-04-28 | Pressure regulating pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321024687.3U CN220082222U (en) | 2023-04-28 | 2023-04-28 | Pressure regulating pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220082222U true CN220082222U (en) | 2023-11-24 |
Family
ID=88823528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321024687.3U Active CN220082222U (en) | 2023-04-28 | 2023-04-28 | Pressure regulating pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220082222U (en) |
-
2023
- 2023-04-28 CN CN202321024687.3U patent/CN220082222U/en active Active
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