CN210859908U - Wet-type alarm valve - Google Patents
Wet-type alarm valve Download PDFInfo
- Publication number
- CN210859908U CN210859908U CN201921581715.5U CN201921581715U CN210859908U CN 210859908 U CN210859908 U CN 210859908U CN 201921581715 U CN201921581715 U CN 201921581715U CN 210859908 U CN210859908 U CN 210859908U
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- Prior art keywords
- valve
- valve body
- sliding
- sliding ring
- wall
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000003780 insertion Methods 0.000 claims description 16
- 230000037431 insertion Effects 0.000 claims description 16
- 230000000670 limiting effect Effects 0.000 claims description 11
- 210000000056 organ Anatomy 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000005253 cladding Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to a wet-type alarm valve belongs to fire-fighting equipment technical field, including valve body and valve clack, the valve clack falls into epicoele and cavity of resorption with the valve body, is connected with the warning pipe on the lateral wall of cavity of resorption, and the last one side of following the valve body of warning pipe has set gradually the outlet pipe, delay ware and hydraulic alarm bell, is provided with the step in the valve body, is provided with the slip ring along valve body endwise slip on the step, is provided with the axis of rotation on the valve clack, and the axis of rotation rotates the top surface of connecting at the slip ring, and the cladding has the friction. When water pressure in the system side of the valve body fluctuates, the sliding ring moves upwards, and after the rotating shaft moves upwards to be in contact with the separation blade, the valve clack can turn away under water flow impact, and in the opening process, the friction plate rubs against the separation blade, so that when the system side and the water supply side have certain water pressure difference, the valve clack can overcome friction force to turn away, the stability of the closing state of the valve clack is improved, and the false alarm triggering probability is reduced.
Description
Technical Field
The utility model relates to a fire-fighting equipment technical field, in particular to wet-type alarm valve.
Background
The wet alarm valve is a one-way valve which only allows water to flow into a water spraying system in one way and alarms when the specified flow is exceeded.
As shown in fig. 6, the conventional wet alarm valve includes a body 101, a valve cover 102 disposed in the valve body 1, a delay unit 22 communicating with the body 101, and an alarm system 103, wherein the valve cover 102 is rotatably connected to an inner wall of the body 101 and divides the body 101 into an upper chamber and a lower chamber, an upper chamber 12 of the body 101 is a system side, the system side is communicated with a fire-fighting pipe network of a building, a lower chamber 13 of the body 101 is a water supply side, and the water supply side is communicated with a fire-fighting water supply pipe. After the water pressure in the system side of the body 101 is reduced, the lower cavity 13 of the body 101 is flushed to drive the valve cover 102 to be opened, fire water flows into the delayer 22 again, the alarm system 103 is triggered after the delayer 22 is filled, and the valve cover 102 is closed when the water enters the upper cavity 12 and reaches the water pressure balance with the lower cavity 13.
However, since the opening and closing manner of the valve cover 102 is an open design, when the system side water pressure and the water supply side water pressure fluctuate, the valve cover 102 is opened in a short time, so that the stability of closing the valve cover 102 is not high, water flow easily enters the delay device 22 and the alarm system 103, and when the water pressure fluctuates frequently and slightly, the amount of water in the delay device 22 and the alarm system 103 is easily too large, which easily causes a false alarm.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wet-type alarm valve has the improvement alarm valve stability, reduces the alert advantage of wrong report.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a wet alarm valve comprises a valve body and a valve clack arranged in the valve body, wherein the valve clack divides the valve body into an upper cavity and a lower cavity, the side wall of the lower cavity is connected with an alarm pipe, a water outlet pipe, a delayer and a hydraulic alarm bell are sequentially arranged on one side of the alarm pipe, which is far away from the valve body, the valve body is internally provided with a step, the step is provided with a sliding ring in an axial sliding way along the valve body, the sliding ring is provided with a driving piece for driving the sliding ring to slide upwards when the water pressure in the upper cavity of the valve body changes, a rotating shaft is fixedly arranged on the side wall of the valve clack and is rotationally connected on the top surface of the sliding ring, the outer wall of the rotating shaft is coated with a friction plate, a baffle plate used for being contacted with the friction plate when the sliding ring is lifted up is fixedly arranged in the valve body, and the sliding ring is provided with a limiting assembly for limiting the rotation of the valve clack before the friction plate is contacted with the separation blade.
Through the technical scheme, when the water pressure in the system side of the valve body fluctuates, the driving piece drives the sliding ring to move upwards, and after the rotating shaft moves upwards to be in contact with the blocking piece, the limiting component releases the limiting effect on the valve clack, so that the valve clack rotates away under the impact of water flow; the valve clack rotates the in-process of opening on the slip ring, and the friction disc rubs with the separation blade all the time to provide pressure for the friction disc by the driving piece, when making system side in the valve body and water supply side have certain water pressure difference, frictional force just can be overcome to the valve clack and the turn-off, effectively solves the valve clack and takes place to rotate probably when its self both sides water pressure is undulant by a small margin, promotes the stability of valve clack closed state, reduces the alert probability that triggers of wrong report.
The utility model discloses further set up to: the driving piece is a baffle ring, and the baffle ring is coaxially and fixedly arranged on the inner wall of the sliding ring.
Through the technical scheme, when the water pressure in the upper cavity of the valve body changes, the sliding ring is impacted by the water flow in the lower cavity, the sliding ring is pushed to move upwards, and after the valve clack is opened, the water flow continuously impacts the sliding ring and the baffle ring on the sliding ring to apply pressure to the rotating shaft of the valve clack, so that the friction plate is tightly attached to the baffle plate, the difficulty in rotating the valve clack is increased, and the stability of the valve clack in a closed state is increased.
The utility model discloses further set up to: the limiting assembly comprises an inserting block, a spring and a pressing block, a sliding groove is formed in the top wall of the sliding ring in the vertical direction, the inserting block is arranged in the sliding groove in a sliding mode, the spring is arranged in the sliding groove and used for driving the inserting block to be away from the inner bottom wall of the sliding groove, one end of the spring is fixedly connected with the inner bottom wall of the sliding groove, the other end of the spring is fixedly connected with the inserting block, an opening of the sliding groove is located under the rotating shaft, a jack matched with the inserting connection is formed in the outer wall of the rotating shaft, the pressing block is arranged in the jack in an axial sliding mode along the jack, and the length of the pressing block in the vertical direction is equal to.
Through above-mentioned technical scheme, when the valve clack is in with the closed state of slip ring, the spring drive inserted block inserts in the jack in the axis of rotation of valve clack, make the valve clack unable rotate, rise to the axis of rotation and the separation blade at the slip ring and paste the back mutually, press the inserted block in the jack to be pushed and release the jack by the separation blade extrusion and with the inserted block in the jack according to the briquetting, thereby untie the rotation restriction to the valve clack, make the valve clack only promote with the separation blade butt after just can take place to rotate by fire water, effectively avoid the valve clack to rotate when the water pressure only takes place small fluctuation in valve body system side, reduce the.
The utility model discloses further set up to: the central angle of the vertical separation line of the friction plate, which is positioned right above the rotating shaft, and the part of the separation line, which is close to one side of the valve clack, is an acute angle.
Through above-mentioned technical scheme, the central angle that makes the friction disc be located the vertical parting line directly over the axis of rotation and the sideline of the friction disc that is close to valve clack one side from this sideline constitute is the acute angle, for example 45, make the valve clack all contact with the separation blade after taking place to rotate before 45, need certain water pressure just can promote the valve clack rotation, and after rotation angle is greater than 45, friction disc and separation blade no longer contact, valve clack slew velocity accelerates, make water supply side fire water get into system side work rapidly, accelerate system side water supply efficiency.
The utility model discloses further set up to: and an organ cover is arranged at the lower end of the sliding ring along the circumferential direction of the sliding ring, one end of the organ cover is fixedly connected with the sliding ring, and the other end of the organ cover is fixedly connected with the step.
Through the technical scheme, the organ cover is fixed below the sliding ring, so that when the sliding ring is jacked up by fire water, the upper cavity and the lower cavity of the valve body are still effectively isolated, and the normal working operation of the valve body is ensured.
The utility model discloses further set up to: the sliding ring is provided with an elastic rope used for driving the valve clack to rotate to a state of being attached to the sliding ring, one end of the elastic rope is fixedly connected with the sliding ring, and the other end of the elastic rope is fixedly connected with the valve clack.
Through above-mentioned technical scheme, after the valve clack is washed away by rivers, the elasticity rope is elongated, and after the water pressure in valve body epicoele and cavity of resorption is stable, the valve clack is pulled back the closed condition under the elastic force effect of elasticity rope for the valve clack speed of reseing, the alarm valve of being convenient for comes into operation once more fast.
The utility model discloses further set up to: the valve comprises a valve body and is characterized in that an access hole is formed in the outer wall of the valve body, a cover plate used for opening and closing the access hole is arranged on the outer wall of the valve body in an axial sliding mode along the outer wall of the valve body, and the cover plate is fixedly connected with the valve body through bolts.
Through above-mentioned technical scheme, set up the access hole at the outer wall of valve body, the convenience is when the valve clack card is dead or is blockked up, and the fire fighter pulls down the apron and overhauls and maintain, promotes alarm valve life.
The utility model discloses further set up to: and a sealing layer is fixedly arranged on the side wall of the cover plate close to the valve body.
Through above-mentioned technical scheme, add the sealing layer between apron and valve body, effectively avoid the seam crossing between apron and the valve body to leak, increase the leakproofness between apron and the valve body.
To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:
when water pressure in a system side of the valve body fluctuates, the sliding ring moves upwards, and after the rotating shaft moves upwards to be in contact with the blocking piece, the valve clack can turn away under the impact of water flow;
secondly, a central angle formed by a vertical separation line of the friction plate positioned right above the rotating shaft and a side line of the friction plate close to one side of the valve clack from the side line is an acute angle, such as 45 degrees, so that the friction plate is contacted with the separation blade before the valve clack rotates for 45 degrees after the valve clack rotates, the valve clack can be pushed to rotate only by certain water pressure, and after the rotating angle is larger than 45 degrees, the friction plate is not contacted with the separation blade any more, the rotating speed of the valve clack is accelerated, fire water at a water supply side rapidly enters a system side to work, and the water supply efficiency of the system;
and thirdly, an access hole is formed in the outer wall of the valve body, so that a fire fighter can pull down the cover plate for maintenance when the valve clack is blocked or blocked, and the service life of the alarm valve is prolonged.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic sectional structure of the present invention;
FIG. 4 is an enlarged view of portion B of FIG. 3;
FIG. 5 is an enlarged view of section C of FIG. 3;
fig. 6 is a schematic cross-sectional structure of the prior art.
Reference numerals: 1. a valve body; 11. a valve flap; 12. an upper chamber; 13. a lower cavity; 2. an alarm tube; 21. a water outlet pipe; 22. a delay device; 23. a water-powered alarm bell; 3. a step; 31. a slip ring; 32. a baffle ring; 4. a rotating shaft; 5. a friction plate; 51. a baffle plate; 6. an organ cover; 7. an elastic cord; 8. a chute; 81. inserting a block; 82. a spring; 83. a jack; 84. a pressing block; 80. defining an assembly; 9. a cover plate; 91. an access hole; 92. a bolt; 93. a sealing layer; 101. a body; 102. a valve cover; 103. and an alarm system.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the wet alarm valve includes a valve body 1 and a valve flap 11 disposed in the valve body 1, wherein the valve flap 11 divides the valve body 1 into an upper chamber 12 and a lower chamber 13. The upper cavity 12 is the system side of the valve body 1 and is communicated with a fire-fighting working pipe network; the lower cavity 13 is the water supply side of the valve body 1 and is communicated with a fire-fighting water supply pipeline. The side wall of the lower cavity 13 is connected with an alarm pipe 2, and a water outlet pipe 21, a delayer 22 and a hydraulic alarm bell 23 are sequentially arranged on one side of the alarm pipe 2, which is far away from the valve body 1. An access hole 91 which penetrates through the upper cavity 12 of the valve body 1 is formed in the outer wall of the valve body 1, a cover plate 9 is arranged on the outer wall of the valve body 1 in a sliding mode along the length direction of the cover plate, and the size of the cover plate 9 is slightly larger than that of the access hole 91. The cover plate 9 is connected with the valve body 1 through a bolt 92, a circle of sealing layer 93 is fixedly arranged on the side wall, close to the valve body 1, of the cover plate 9, and the sealing layer 93 is made of rubber and used for increasing the sealing performance of the cover plate 9 when the access hole 91 is closed.
As shown in fig. 1 and 3, a step 3 is arranged in the valve body 1, a sliding ring 31 slides on the step 3 along the axial direction of the valve body 1, and the size of the sliding ring 31 is matched with that of the step 3. Referring to fig. 2, a rotating shaft 4 is fixedly arranged on the side wall of the valve flap 11, and the axis of the rotating shaft 4 is perpendicular to the radius of the valve flap 11 and is perpendicular to but does not intersect with the axis of the valve flap 11. The rotation shaft 4 is rotatably provided on the top wall of the slide ring 31. The outer wall of the rotating shaft 4 is wrapped with a friction plate 5, a baffle 51 is fixedly arranged in the valve body 1, and the baffle 51 is positioned above the rotating shaft 4. The central angle of the vertical separation line of the friction plate 5 directly above the rotating shaft 4 and the portion of the separation line closer to the valve flap 11 side is an acute angle, preferably 45 °.
As shown in fig. 3 and 4, the slip ring 31 is provided with a limiting assembly 80 for limiting the rotation of the valve flap 11 before the friction plate 5 contacts the blocking plate 51, and preferably, the limiting assembly 80 comprises an insertion block 81, a spring 82 and a pressing block 84. The top wall of the sliding ring 31 is provided with a sliding groove 8 along the vertical direction, the insertion block 81 is arranged in the sliding groove 8 in a sliding manner, and the length of the sliding groove 8 is greater than that of the insertion block 81. The spring 82 is disposed in the sliding chute 8, and one end of the spring 82 is fixedly connected to the inner bottom wall of the sliding chute 8, and the other end of the spring 82 is fixedly connected to the insertion block 81, so as to drive the insertion block 81 to be away from the inner bottom wall of the sliding chute 8. The rotating shaft 4 is provided with an insertion hole 83 corresponding to and matching with the insertion block 81, the pressing block 84 is slidably arranged in the insertion hole 83, and the length of the pressing block 84 in the vertical direction is equal to that of the insertion hole 83 in the vertical direction.
As shown in fig. 3 and 5, the lower end of the sliding ring 31 is provided with an organ cover 6 along the circumferential direction thereof, one end of the organ cover 6 is fixedly connected with the sliding ring 31, and the other end is fixedly connected with the step 3. An elastic rope 7 is arranged between the sliding ring 31 and the valve flap 11, one end of the elastic rope 7 is fixedly connected with the sliding ring 31, and the other end of the elastic rope 7 is fixedly connected with the valve flap 11 and used for driving the valve flap 11 to rotate to be attached to the sliding ring 31. A stopper ring 32 is coaxially and fixedly provided on the inner wall of the slip ring 31 for increasing the impact force of the water flow on the slip ring 31.
The specific working process is as follows: when the water pressure in the upper chamber 12 of the valve body 1 changes, the sliding ring 31 is impacted by the water flow in the lower chamber 13, the sliding ring 31 is pushed to move upwards, and the valve clack 11 and the rotating shaft 4 are driven to ascend together. After the rotating shaft 4 moves upward to contact with the stopper 51, the pressing block 84 is pressed by the stopper 51 and pushes the insertion block 81 in the insertion hole 83 out of the insertion hole 83, thereby releasing the restriction of the rotation of the valve flap 11 and allowing the valve flap 11 to rotate open under the impact of water flow.
After the valve flap 11 is opened, the water flow continuously impacts the sliding ring 31 and the blocking piece 51 on the sliding ring 31, and the rotating shaft 4 of the valve flap 11 is pressed, so that the friction plate 5 is tightly attached to the blocking piece 51. In the process of opening the valve flap 11 on the sliding ring 31, the friction plate 5 always rubs against the blocking piece 51, and a certain friction force is provided. So that the valve flap 11 can be rotated open against the friction only when the system side and the water supply side in the valve body 1 have a certain water pressure difference. The problem that the valve clack 11 rotates when the water pressure on two sides of the valve clack is fluctuated slightly is effectively solved, the stability of the closing state of the valve clack 11 is improved, and the false alarm triggering probability is reduced.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a wet-type alarm valve, includes valve body (1) and sets up valve clack (11) in valve body (1), valve clack (11) fall into epicoele (12) and lower chamber (13) with valve body (1), be connected with warning pipe (2) on the lateral wall of lower chamber (13), one side toward deviating from valve body (1) is gone up in warning pipe (2) has set gradually outlet pipe (21), delayer (22) and alarm bell (23), its characterized in that: a step (3) is arranged in the valve body (1), a sliding ring (31) is arranged on the step (3) along the axial direction of the valve body (1) in a sliding way, the sliding ring (31) is provided with a driving piece for driving the sliding ring (31) to slide upwards when the water pressure in the upper cavity (12) of the valve body (1) changes, a rotating shaft (4) is fixedly arranged on the side wall of the valve clack (11), the rotating shaft (4) is rotatably connected on the top surface of the sliding ring (31), the outer wall of the rotating shaft (4) is coated with a friction plate (5), a baffle plate (51) which is used for being contacted with the friction plate (5) when the sliding ring (31) is lifted is fixedly arranged in the valve body (1), the sliding ring (31) is provided with a limiting assembly (80) used for limiting the rotation of the valve clack (11) before the friction plate (5) is contacted with the baffle plate (51).
2. The wet alarm valve of claim 1, wherein: the driving piece is a baffle ring (32), and the baffle ring (32) is coaxially and fixedly arranged on the inner wall of the sliding ring (31).
3. The wet alarm valve of claim 1, wherein: the limiting assembly (80) comprises an inserting block (81), a spring (82) and a pressing block (84), the top wall of the sliding ring (31) is provided with a sliding groove (8) along the vertical direction, the inserting block (81) is arranged in the sliding groove (8) in a sliding way, the spring (82) is arranged in the sliding groove (8) and is used for driving the insert block (81) to be far away from the inner bottom wall of the sliding groove (8), one end of the spring (82) is fixedly connected with the inner bottom wall of the sliding chute (8), the other end is fixedly connected with the inserting block (81), the opening of the sliding chute (8) is positioned under the rotating shaft (4), the outer wall of the rotating shaft (4) is provided with a jack (83) matched with the insertion connection, the pressing block (84) is arranged in the insertion hole (83) in a sliding manner along the axial direction of the insertion hole (83), the length of the pressing block (84) in the vertical direction is equal to the length of the insertion hole (83).
4. The wet alarm valve of claim 1, wherein: the central angle of the vertical separation line of the friction plate (5) positioned right above the rotating shaft (4) and the part of the separation line close to one side of the valve clack (11) is an acute angle.
5. The wet alarm valve of claim 1, wherein: an organ cover (6) is arranged at the lower end of the sliding ring (31) along the circumferential direction of the sliding ring, one end of the organ cover (6) is fixedly connected with the sliding ring (31), and the other end of the organ cover is fixedly connected with the step (3).
6. The wet alarm valve of claim 1, wherein: the sliding ring (31) is provided with an elastic rope (7) used for driving the valve clack (11) to rotate to a state of being attached to the sliding ring (31), one end of the elastic rope (7) is fixedly connected with the sliding ring (31), and the other end of the elastic rope is fixedly connected with the valve clack (11).
7. The wet alarm valve of claim 1, wherein: the outer wall of the valve body (1) is provided with an access hole (91), the outer wall of the valve body (1) is provided with a cover plate (9) used for opening and closing the access hole (91) along the axial sliding of the cover plate, and the cover plate (9) is fixedly connected with the valve body (1) through a bolt (92).
8. The wet alarm valve of claim 7, wherein: and a sealing layer (93) is fixedly arranged on the side wall of the cover plate (9) close to the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921581715.5U CN210859908U (en) | 2019-09-21 | 2019-09-21 | Wet-type alarm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921581715.5U CN210859908U (en) | 2019-09-21 | 2019-09-21 | Wet-type alarm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210859908U true CN210859908U (en) | 2020-06-26 |
Family
ID=71288429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921581715.5U Expired - Fee Related CN210859908U (en) | 2019-09-21 | 2019-09-21 | Wet-type alarm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210859908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797304A (en) * | 2021-01-25 | 2021-05-14 | 湖南省水利投地方电力有限公司 | Power station generator oil groove anomaly detection device |
| CN117628262A (en) * | 2024-01-25 | 2024-03-01 | 泉州市山河消防技术有限公司 | Wet-type alarm valve for fire safety |
-
2019
- 2019-09-21 CN CN201921581715.5U patent/CN210859908U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797304A (en) * | 2021-01-25 | 2021-05-14 | 湖南省水利投地方电力有限公司 | Power station generator oil groove anomaly detection device |
| CN117628262A (en) * | 2024-01-25 | 2024-03-01 | 泉州市山河消防技术有限公司 | Wet-type alarm valve for fire safety |
| CN117628262B (en) * | 2024-01-25 | 2024-03-29 | 泉州市山河消防技术有限公司 | Wet-type alarm valve for fire safety |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 Termination date: 20210921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |