Sprinkler valve with intelligent leak alarm assembly

Abstract

The application discloses a deluge valve with an intelligent water leakage alarm assembly, which comprises a water inlet pipe, a water outlet pipe, a valve body, a floating rod hinged to the inner wall of the water outlet pipe, a floating ball, a sliding rod directly penetrating the water outlet pipe, a pressure sensor connected to the outer wall of the water outlet pipe, a pressure ring fixedly sleeved to one end of the sliding rod penetrating the water outlet pipe, and a driving unit for driving the sliding rod to slide to the outside of the water outlet pipe when the floating rod swings upward along the hinge with the inner wall of the water outlet pipe. When the pressure diaphragm in the valve body is worn and water leakage occurs, the water will leak into the water outlet pipe from the worn part of the pressure diaphragm, and then the liquid level in the water outlet pipe will be raised. With the rising of the liquid level, the floating ball will be lifted until the floating ball moves upward and drives the floating rod to swing, so that the floating rod triggers the driving unit to act, thereby making the pressure ring on the sliding rod away from the pressure sensor, and the pressure signal of the pressure sensor disappears for a certain time length, and then an external controller determines that the deluge valve is in a water leakage state.

Description

Technical Field

[0001] This invention relates to the field of deluge valve technology, specifically a deluge valve with an intelligent leak alarm component. Background Technology

[0002] Deluge valves are a common type of fire-fighting equipment in fire extinguishing systems. They are control valves that automatically supply water by controlling the fire water supply pipeline. They can be opened electrically, hydraulically, pneumatically, or mechanically. They can control the flow of fire water in the building's fire pipeline towards the sprinkler heads according to the fire situation, making them a timely and efficient fire valve.

[0003] During long-term use, diaphragm deluge valves often leak due to diaphragm wear or abnormal water pressure. Existing deluge valves are difficult to detect and alarm on in a timely and effective manner, which can easily lead to water waste and fire safety hazards.

[0004] For example, patent publication number CN216418141U discloses a device including a data acquisition, prediction, and alarm module and a deluge valve disposed between an inlet pipe and an outlet pipe. The deluge valve is connected to the inlet pipe at one end and to the outlet pipe at the other. The deluge valve includes an outlet chamber, an inlet chamber, a control chamber, and a valve disc. The inlet chamber and the control chamber are connected by a metal pipe, and a solenoid valve is installed on the outlet pipe of the control chamber. Although the data acquisition, prediction, and alarm module in this application determines the opening, closing, and leakage status of the deluge valve in the foam-water spray valve assembly by monitoring the pressure difference between the inlet chamber and the control chamber, and issues an alarm through the alarm module, it can promptly detect problems such as the foam-water spray system failing to operate during a fire or leaking during normal operation.

[0005] However, when a leak occurs, the specific process is as follows: water is introduced, filling both the inlet and control chambers, while the outlet chamber remains empty. The pressure in the inlet and control chambers is balanced, and the valve disc remains stationary. If the pressure difference on the pressure gauge with remote transmission function is not zero but does not exceed a certain absolute value, it indicates that the deluge valve is leaking. This process relies on absolute values ​​for judgment, which introduces a certain degree of error and allows for only a rough assessment. If the leakage is small, it may not provide an accurate alarm. Therefore, we propose a deluge valve with an intelligent leak alarm component.

[0006] This application utilizes a float-linked mechanical structure within the outlet pipe. When the pressure diaphragm within the valve body wears down and leaks, water leaks into the outlet pipe through the worn area of ​​the pressure diaphragm, causing the liquid level in the outlet pipe to rise. As the liquid level rises, it eventually lifts the float, which moves upward and drives the floating rod to swing. This causes the floating rod to trigger the drive unit, thereby moving the pressure ring on the sliding rod away from the pressure sensor. This causes the pressure sensor's pressure signal to disappear for a certain period of time, allowing the external controller to determine that the deluge valve is leaking. The pressure sensor provides real-time and accurate determination of the deluge valve's leaking state. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a deluge valve with an intelligent water leakage alarm component. In order to solve the above-mentioned technical problem, the present invention provides the following technical solution:

[0008] This invention provides: a deluge valve with an intelligent leak alarm component, comprising an inlet pipe, an outlet pipe, and a valve body, and further comprising:

[0009] A floating rod is hinged to the inner wall of the water outlet pipe, and a float is fixedly connected to the floating rod.

[0010] A sliding rod that is vertically inserted through the water outlet pipe and can slide freely;

[0011] A pressure sensor connected to the outer wall of the water outlet pipe;

[0012] A pressure ring is fixedly sleeved on one end of the sliding rod that extends out of the water outlet pipe, and the end face of the pressure ring facing the water outlet pipe abuts against the pressure sensor;

[0013] A drive unit for driving the sliding rod to slide outwards from the water outlet pipe when the floating rod swings upwards along the hinge point with the inner wall of the water outlet pipe.

[0014] Furthermore, the driving unit includes a sliding pin passing through the other end of the sliding rod, the floating rod is fixedly connected to an ear plate, the ear plate has an oblong hole for the sliding pin to be inserted, and the length direction of the oblong hole is perpendicular to the axial direction of the floating rod.

[0015] Furthermore, a mounting base is fixed to the outer wall of the water outlet pipe, the pressure sensor and the pressure ring are disposed inside the mounting base, a cover plate is detachably connected to the open side of the mounting base, and a first spring is arranged between the pressure ring and the inner surface of the cover plate, with the two ends of the first spring elastically abutting against the pressure ring and the cover plate respectively in the direction of the spring force.

[0016] Furthermore, the water outlet pipe is horizontally rotatably connected to a rotating rod extending therein. One end of the rotating rod, which passes through the water outlet pipe, is fixedly connected to a guide plate. A horizontal plate is fixedly connected to the inner wall of the mounting base. A first conductive block is fixedly connected to the horizontal plate. A sliding column that can slide freely passes through the mounting base. A second conductive block is fixedly connected to the sliding column. A transmission unit is connected between the rotating rod and the sliding column. The transmission unit is used to drive the rotating rod to rotate, causing the first conductive block and the second conductive block to abut against each other. The first conductive block is fixedly connected to the first conductive column, and the second conductive block is fixedly connected to the second conductive column. The first conductive column is electrically connected to one electrode of the pressure sensor.

[0017] Furthermore, the transmission unit includes a gear sleeved on the rotating rod, the sliding column is provided with a rack portion, the gear meshes externally with the rack portion, each end of the sliding column extending out of the mounting base is sleeved with a fixing ring, and each end of the sliding column is respectively wrapped with a second spring, the two ends of the second spring elastically abutting against the fixing ring and the outer wall of the mounting base respectively in the direction of the spring force.

[0018] Furthermore, a ring frame is fixedly connected inside the water outlet pipe, and an airbag that expands to a ring shape is placed inside the ring frame.

[0019] Furthermore, the airbag is provided with a deflation tube that extends out of the water outlet tube. A sealing seat is fixed to the outer wall of the water outlet tube. The sealing seat is hollow inside and fits onto the deflation tube. The deflation tube communicates with the interior of the sealing seat. The outer wall of the sealing seat is provided with a deflation port that extends through its interior. A freely sliding sealing plug is engaged inside the sealing seat. The sealing seat is provided with a translation unit for driving the sealing plug to move away from the deflation tube when the rotating rod rotates.

[0020] Furthermore, the translation unit includes a rotating shaft rotatably connected to the sealing seat. One end of the rotating shaft passes through the sealing seat and is fixedly connected to a rotating disk. Two arc-shaped protrusions are fixedly connected to the end of the rotating disk facing the sealing plug. Two mounting pins are fixedly connected to the end face of the sealing plug. Ball bearings are rotatably embedded in the mounting pins. A third spring is horizontally arranged inside the sealing seat. The third spring elastically abuts against the sealing plug, allowing the ball bearings to roll into contact with the end face of the arc-shaped protrusions and the end face of the rotating disk. The rotating rod is connected to the rotating shaft through a connecting unit.

[0021] Furthermore, the connecting unit includes two pulleys respectively sleeved on the ends of the rotating rod and the rotating shaft, and the two pulleys are connected by a V-belt.

[0022] Furthermore, the periphery of the sealing plug is connected to the inner wall of the sealing seat by a key.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This invention incorporates a float and a floating rod. When the pressure diaphragm inside the valve body wears down and leaks, water leaks into the outlet pipe through the worn area of ​​the pressure diaphragm, causing the liquid level in the outlet pipe to rise. As the liquid level rises, it eventually lifts the float, which moves upward and causes the floating rod to swing. This triggers the drive unit to operate, which in turn drives the sliding rod to slide outward from the outlet pipe. This causes the pressure ring on the sliding rod to move away from the pressure sensor, resulting in the pressure sensor signal disappearing for a certain period of time. The external controller then determines that the deluge valve is leaking.

[0025] This invention employs a first conductive block, a second conductive block, a first conductive post, and a second conductive post. The first conductive block and the first conductive post are electrically connected to the positive (or negative) terminal of a pressure sensor, while the second conductive block and the second conductive post are electrically connected to the positive (or negative) terminal of an external power supply. The negative (or positive) terminal of the pressure sensor is also electrically connected to the negative (or positive) terminal of the external power supply. This ensures that a path is formed between the external power supply and the pressure sensor only when the surfaces of the first and second conductive blocks are in contact, allowing the pressure sensor to generate a normal sensing signal. When the deluge valve is operating normally, the water in the outlet pipe drives the guide plate to swing, causing the guide plate to rotate the rotating rod. The rotation of the rotating rod engages the drive gear and rack, causing the sliding post to move horizontally and disengage the first and second conductive blocks. At this point, the pressure sensor is de-energized, and the external controller determines that the deluge valve is in operation. This prevents the float from moving upwards during operation, which could cause the pressure sensor signal to disappear and lead the external controller to mistakenly determine that the deluge valve is leaking.

[0026] This invention incorporates an airbag. When the airbag is inflated, it reduces the volume inside the water outlet pipe. This allows the liquid level in the water outlet pipe to rise rapidly when the deluge valve leaks, enabling the float to move upwards in the early stages of leakage, thus achieving rapid monitoring of the deluge valve's leakage status.

[0027] This invention, by setting the guide plate to swing, drives the rotating rod and rotating shaft to rotate, which in turn drives the rotating disk to rotate. This causes the arc-shaped protrusion on the rotating disk to disengage from the rolling contact of the ball bearings. Then, under the elastic resistance of the third spring, the sealing plug moves towards the rotating disk, connecting the vent port with the vent pipe of the airbag. This allows the air inside the airbag to be quickly discharged through the vent port. In this way, when the deluge valve is in fire sprinkler operation, the air inside the airbag is quickly released, thus preventing water from flowing out of the outlet pipe. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of a deluge valve with an intelligent water leakage alarm component according to the present invention;

[0030] Figure 2 for Figure 1 A side view diagram of the mid-structure;

[0031] Figure 3 for Figure 1 A structural diagram from another angle;

[0032] Figure 4 for Figure 3 Cross-sectional view of the middle structure;

[0033] Figure 5 for Figure 4 Enlarged schematic diagram of the local structure at point A;

[0034] Figure 6 for Figure 4 Enlarged schematic diagram of the local structure at point B;

[0035] Figure 7 This is a schematic diagram of the structure of the present invention with the valve body, inlet pipe and outlet pipe omitted.

[0036] Figure 8 for Figure 7 Enlarged schematic diagram of the local structure at point C;

[0037] Figure 9 This is a schematic diagram of the structure of the present invention with the cover plate omitted.

[0038] The following are the annotations for each item in the figure: 1. Inlet pipe; 2. Air inlet pipe; 3. Outlet pipe; 4. Sealing seat; 5. Cover plate; 6. Fixing ring; 7. Mounting seat; 8. Sliding column; 9. Second spring; 10. Rotating shaft; 11. Air vent; 12. Rotating rod; 13. Guide plate; 14. Airbag; 15. Float ball; 16. Floating rod; 17. Ring frame; 18. Gear; 19. Rack section; 20. Second conductive column; 21. Waist-shaped hole; 22. Sliding rod; 23. First conductive block; 24. Pressure sensor; 25. Pressure ring; 26. First spring; 27. First conductive column; 28. Second conductive block; 29. ​​Arc-shaped protrusion; 30. Ball bearing; 31. Air vent pipe; 32. Third spring; 33. Sealing plug; 34. Mounting pin; 35. Rotating disk; 36. Horizontal plate; 37. Ear plate; 38. Sliding pin. Detailed Implementation

[0039] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Example

[0040] like Figure 1-9 As shown;

[0041] This embodiment provides a technical solution: a deluge valve with an intelligent water leakage alarm component, including an inlet pipe 1, an outlet pipe 3, and a valve body. A pressure diaphragm (not shown in the figure) is installed inside the valve body. The structure and working principle of the valve body are existing technologies and will not be described in detail here. A floating rod 16 that can swing up and down is hinged to the inner wall of the outlet pipe 3. A float ball 15 is fixed to the floating rod 16. The float ball 15 can move up and down with the rise and fall of the liquid level in the outlet pipe 3. A rectangular mounting base 7 is welded to the outer wall of the outlet pipe 3. The mounting base 7 has an open side away from the water outlet pipe 3, and a cover plate 5 is screwed to the open side. A sliding rod 22 that can slide freely is vertically inserted through the water outlet pipe 3. One end of the sliding rod 22 that extends out of the water outlet pipe 3 is located inside the mounting base 7. The sliding rod 22 is located at the upper end of the floating rod 16, and a sliding pin 38 is inserted through the other end of the sliding rod 22 that extends into the water outlet pipe 3. The floating rod 16 is fixedly connected to an ear plate 37. The ear plate 37 has an oblong hole 21 for the sliding pin 38 to be inserted. The length direction of the oblong hole 21 is perpendicular to the axial direction of the floating rod 16.

[0042] When the pressure diaphragm wears down, water from the inlet pipe 1 seeps into the outlet pipe 3. As the liquid level in the outlet pipe 3 rises, the float 15 is lifted. During the lifting process, the float 15 will drive the floating rod 16 to swing upward along the hinge with the inner wall of the outlet pipe 3. When it swings upward, the sliding pin 38 will slide in the waist-shaped hole 21. As the floating rod 16 swings upward, it will drive the sliding rod 22 to slide towards the outside of the outlet pipe 3. A pressure sensor 24 is connected to the outer wall of the outlet pipe 3.

[0043] Furthermore, the pressure sensor 24 is located inside the mounting base 7, which houses a wireless transmission module and a power module. The power module supplies power to the pressure sensor 24, with its positive and negative terminals electrically connected to those of the pressure sensor 24. Additionally, a pressure ring 25 is fixedly fitted to one end of the sliding rod 22 extending from the outlet pipe 3. The end face of the pressure ring 25 facing the outlet pipe 3 abuts against the pressure sensor 24. A first spring 26 is provided between the pressure ring 25 and the inner surface of the cover plate 5. The two ends of the first spring 26 elastically abut against the pressure ring 24. 5 and cover plate 5, so that when cover plate 5 is installed on mounting base 7, the first spring 26 has an elastic resisting force on pressure ring 25, which in turn causes pressure ring 25 to generate pressure on pressure sensor 24. The controller collects the pressure signal of pressure sensor 24 through wireless transmission module, and can then determine that the deluge valve is not leaking. When sliding rod 22 slides outward from outlet pipe 3, pressure ring 25 will move away from pressure sensor 24, which will cause the pressure signal of pressure sensor 24 to disappear. At this time, the controller determines that the deluge valve is leaking.

[0044] By setting a float and a floating rod, when the pressure diaphragm in the valve body wears down and leaks, water will leak into the outlet pipe through the worn part of the pressure diaphragm, causing the liquid level in the outlet pipe to rise. As the liquid level rises, it will push up the float, which will move upward and drive the floating rod to swing. This will trigger the drive unit to operate, which will then drive the sliding rod to slide outward of the outlet pipe. This will cause the pressure ring on the sliding rod to move away from the pressure sensor, causing the pressure sensor's pressure signal to disappear for a certain period of time. Then, the external controller will determine that the deluge valve is in a leaking state. The specific process is as follows: when the pressure diaphragm in the valve body wears down and leaks, water will leak into the outlet pipe 3 through the worn part of the pressure diaphragm, which will cause the liquid level in the outlet pipe 3 to rise. As the liquid level rises, it will push up the float ball 15. The float ball 15 moves upward and drives the floating rod 16 to swing, so that the sliding pin 38 slides in the waist-shaped hole 21 and drives the sliding rod 22 to slide outward of the outlet pipe 3. This makes the pressure ring 25 on the sliding rod 22 move away from the pressure sensor 24, so that the pressure signal of the pressure sensor 24 disappears for at least a certain period of time (for example, the time is set to 1 hour). During this period of time, the external controller does not collect the pressure signal of the pressure sensor 24, indicating that the float ball 15 is in the pushed-up state. Then the external controller determines that the deluge valve is in a leaking state.

[0045] When the valve body is in operation (in fire extinguishing mode), the water level in the outlet pipe 3 will rise rapidly. Therefore, it is necessary to ensure that the pressure sensor 24 does not generate false signals. In this embodiment, a rotating rod 12 extending into the outlet pipe 3 is horizontally rotatably connected to it. One end of the rotating rod 12, which passes through the outlet pipe 3, is fixedly connected to a guide plate 13. A horizontal plate 36 is fixedly connected to the inner wall of the mounting base 7, and a first conductive block 23 is fixedly connected to the horizontal plate 36. A sliding column 8, which can slide freely, passes through the mounting base 7, and a second conductive block 23 is fixedly connected to the sliding column 8. The conductive block 28 has a gear 18 sleeved on the rotating rod 12. The sliding column 8 has a rack portion 19, and the gear 18 meshes with the rack portion 19. The sliding column 8 passes through the mounting base 7 and has a fixing ring 6 sleeved at each end. The two ends of the sliding column 8 are respectively wrapped with a second spring 9. The two ends of the second spring 9 elastically abut against the fixing ring 6 and the outer wall of the mounting base 7 respectively in the direction of the elastic force. The first conductive block 23 is fixedly connected to the first conductive column 27, and the second conductive block 28 is fixedly connected to the second conductive column 20. The first conductive column 27 is electrically connected to one electrode of the pressure sensor 24.

[0046] By setting up a first conductive block, a second conductive block, a first conductive post, and a second conductive post, wherein the first conductive block and the first conductive post are electrically connected to the positive (or negative) terminal of the pressure sensor, the second conductive block and the second conductive post are electrically connected to the positive (or negative) terminal of an external power supply, and the negative (or positive) terminal of the pressure sensor is electrically connected to the negative (or positive) terminal of the external power supply, a path is formed between the external power supply and the pressure sensor only when the surfaces of the first and second conductive blocks are in contact, allowing the pressure sensor to generate a normal sensing signal. When the deluge valve is working normally, the water in the outlet pipe will drive the guide plate to swing, causing the guide plate to drive the rotating rod to rotate. When the rotating rod rotates, it will mesh the drive gear and rack, thereby causing the sliding post to move horizontally, causing the first and second conductive blocks to disengage. At this time, the pressure sensor is in a de-energized state, and the external controller determines that the deluge valve is in a working state. This avoids the float moving upward when the deluge valve is working, causing the pressure sensor signal to disappear and the external controller to mistakenly determine that the deluge valve is leaking.

[0047] For example, the first conductive post 27 is electrically connected to the positive terminal of the pressure sensor 24 via a cable, the second conductive post 20 is electrically connected to the positive terminal of the power module via a cable, and the negative terminal of the pressure sensor 24 is electrically connected to the negative terminal of the power module via a cable. When the first conductive block 23 and the second conductive block 28 are in contact, the power module and the pressure sensor 24 are in a closed circuit state, and otherwise they are in an open circuit state.

[0048] When the valve body is not in operation, the two second springs 9 have elastic resisting forces of the same magnitude and opposite directions on the two fixed rings 6, which makes the sliding column 8 stationary. At this time, the guide plate 13 is in a parallel state, or in other words, the thickness direction of the guide plate 13 is parallel to the axis of the water outlet pipe 3. The first conductive block 23 and the second conductive block 28 are in contact. At this time, the first conductive block 23 and the second conductive block 28 are in contact, which makes the power module and the pressure sensor 24 in a closed circuit state.

[0049] When the valve body is working normally, the water flow in the outlet pipe 3 is relatively large. The water will impact the guide plate 13, causing the guide plate 13 to rotate to a vertical position. During rotation, the rotating rod 12 will rotate synchronously. When the rotating rod 12 rotates, the gear 18 and the rack 19 will mesh and drive the sliding column 8 to move horizontally. This will cause the first conductive block 23 and the second conductive block 28 to disengage from their surface contact state. At this time, one of the second springs 9 is in a compressed state, and the power module and the pressure sensor 24 are in an open circuit state. The pressure sensor in the external controller... When the power signal of sensor 24 disappears, the controller determines that the valve body is working normally. It should also be noted that although the water in the outlet pipe 3 will also push up the float ball 15 when the valve body is working, causing the pressure ring 25 to lose contact with the pressure sensor 24, the controller determines whether the deluge valve is leaking based on the minimum time when the pressure sensor 24 signal disappears. When the valve body is working, the water flow in the outlet pipe 3 is large and can rise quickly and drive the guide plate 13 to rotate. Therefore, in this embodiment, the controller will not mistakenly determine that the deluge valve is leaking when the valve body is working.

[0050] Because the liquid level in the outlet pipe 3 rises slowly when the pressure diaphragm wears little, leakage in the valve body cannot be detected in time. Therefore, in this embodiment, a hollow ring frame 17 is welded inside the outlet pipe 3. An air bladder 14, which expands to a ring shape, is placed inside the ring frame 17. An inflation tube 2 is provided on the air bladder 14, which can be inflated to expand its volume. The outer wall of the outlet pipe 3 has a mounting hole for the inflation tube 2 to pass through freely, and the mounting hole and the outer wall of the inflation tube 2 are sealed. By setting the air bladder... When the airbag is inflated, it can reduce the volume of the water outlet pipe. This allows the liquid level in the water outlet pipe to rise rapidly when the deluge valve leaks, enabling the float to move upwards in the early stages of leakage, thus achieving rapid monitoring of the deluge valve's leakage status. The airbag 14 is equipped with a vent pipe 31, which extends out of the water outlet pipe 3. A sealing seat 4 is fixed to the outer wall of the water outlet pipe 3. The sealing seat 4 is hollow and fitted onto the vent pipe 31. The vent pipe 31 communicates with the interior of the sealing seat 4. The outer wall of the sealing seat 4 is provided with a vent port 11 that extends through its interior.

[0051] A freely sliding sealing plug 33 is engaged within the sealing seat 4. The periphery of the sealing plug 33 is connected to the inner wall of the sealing seat 4 via a key, allowing the sealing plug 33 to slide within the sealing seat 4 without rotation. A rotating shaft 10 is coaxially rotatably connected to the sealing seat 4. One end of the rotating shaft 10 passes into the sealing seat 4 and is fixedly connected to a rotating disk 35. Two arc-shaped protrusions 29 are fixedly connected to the end of the rotating disk 35 facing the sealing plug 33. Two mounting pins 34 are fixedly connected to the end face of the sealing plug 33. The mounting pins 34 are rotatably fitted with balls 30. A third spring 32 is horizontally arranged within the sealing seat 4. The third spring 32 elastically abuts against the sealing plug 33, allowing the balls 30 to roll in contact with the end faces of the arc-shaped protrusions 29 and the end face of the rotating disk 35. A pulley is sleeved at the end of the rotating rod 12 and the rotating shaft 10, and the two pulleys are connected by a V-belt.

[0052] When the guide plate 13 rotates, it will drive the rotating rod 12 to rotate. When the rotating rod 12 rotates, it will drive the rotating shaft 10 to rotate synchronously through the transmission of two pulleys, so that the rotating disk 35 rotates. This will cause the end face of the arc-shaped protrusion 29 to disengage from the rolling contact state with the ball 30. As the guide plate 13 rotates to 90 degrees, the ball 30 will roll from the arc-shaped protrusion 29 to the end face of the rotating disk 35 under the elastic resistance of the third spring 32 against the sealing plug 33. At this time, the sealing plug 33 will move towards the rotating disk 35, and the vent 11 will be in an open state. This will cause the air in the airbag 14 to be released through the vent pipe 31 and the vent 11, thereby causing the volume of the airbag 14 to shrink rapidly. In this way, when the valve body is working normally, the airbag 14 will not cause the water flow in the outlet pipe 3 to decrease.

[0053] Conversely, when the pressure diaphragm leaks, the air bladder 14 is in an inflated state. At this time, the internal volume of the water outlet pipe 3 decreases, so the water flow in the water outlet pipe 3 that can lift the float 15 is smaller. This allows the water level in the water outlet pipe 3 to rise rapidly and lift the float 15, enabling timely monitoring of the leakage status in the water outlet pipe 3.

[0054] Working principle of the invention:

[0055] When the pressure diaphragm in the valve body wears down and leaks, water will leak into the outlet pipe 3 through the worn part of the pressure diaphragm, causing the liquid level in the outlet pipe 3 to rise. As the liquid level rises, it will push up the float ball 15. The float ball 15 moves upward and drives the floating rod 16 to swing, causing the sliding pin 38 to slide in the waist-shaped hole 21 and drive the sliding rod 22 to slide outward of the outlet pipe 3. This causes the pressure ring 25 on the sliding rod 22 to move away from the pressure sensor 24, causing the pressure signal of the pressure sensor 24 to disappear for at least a certain period of time (for example, the period is set to 1 hour). During this period of time, the external controller does not collect the pressure signal of the pressure sensor 24, indicating that the float ball 15 is in the pushed-up state. The external controller then determines that the deluge valve is in a leaking state.

[0056] When the pressure diaphragm leaks, the air bladder 14 expands, reducing the internal volume of the outlet pipe 3. This results in a smaller water flow rate in the outlet pipe 3 that can lift the float 15, allowing the water level in the outlet pipe 3 to rise rapidly and lift the float 15. This enables timely detection of leakage in the outlet pipe 3. When the valve body is working normally, the water flow rate in the outlet pipe 3 is larger, and the water will impact the guide plate 13, causing it to rotate to a vertical position. During rotation, the rotating rod 12 is driven to rotate simultaneously. When the rotating rod 12 rotates, the gear 18 and the rack 19 mesh, which in turn drives the sliding column 8 to move horizontally. This causes the first conductive block 23 and the second conductive block 28 to disengage from their surface contact. At this time, one of the second springs 9 is compressed, the power module and the pressure sensor 24 are disconnected, and the power signal of the pressure sensor 24 in the external controller disappears. The controller then determines that the valve body is working normally.

[0057] It should also be noted that although the water in the outlet pipe 3 will also push up the float ball 15 when the valve body is working, causing the pressure ring 25 to disengage from the pressure sensor 24, the controller determines whether the deluge valve is leaking based on the minimum time the pressure sensor 24 signal disappears. Since the water flow in the outlet pipe 3 is large when the valve body is working, it can quickly rise and drive the guide plate 13 to rotate. Therefore, in this embodiment, the controller will not mistakenly determine that the deluge valve is leaking when the valve body is working. When the guide plate 13 rotates, it will drive the rotating rod 12 to rotate. When the rotating rod 12 rotates, it will drive the rotating shaft 10 to rotate synchronously through the transmission of the two pulleys. The rotation of the rotating disk 35 causes the end face of the arc-shaped protrusion 29 to disengage from the rolling contact state with the ball 30. As the guide plate 13 rotates to 90 degrees, the ball 30, under the elastic resistance of the third spring 32 against the sealing plug 33, will roll from the arc-shaped protrusion 29 to the end face of the rotating disk 35. At this time, the sealing plug 33 will move towards the rotating disk 35, and the vent 11 will be in an open state. This allows the air in the airbag 14 to be released through the vent pipe 31 and the vent 11, thereby causing the volume of the airbag 14 to shrink rapidly. In this way, when the valve body is working normally, the airbag 14 will not cause a decrease in the water flow in the outlet pipe 3.

[0058] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A deluge valve with an intelligent water leakage alarm component, comprising an inlet pipe (1), an outlet pipe (3), and a valve body, characterized in that, Also includes: A floating rod (16) is hinged to the inner wall of the water outlet pipe (3), and a float (15) is fixed to the floating rod (16). A sliding rod (22) that is vertically inserted through the water outlet pipe (3) and can slide freely. Pressure sensor (24) connected to the outer wall of the water outlet pipe (3); A pressure ring (25) is fixedly sleeved on the sliding rod (22) and extends out of one end of the water outlet pipe (3). The end face of the pressure ring (25) facing the water outlet pipe (3) abuts against the pressure sensor (24). A drive unit for driving the sliding rod (22) to slide outward from the water outlet pipe (3) when the floating rod (16) swings upward along the hinge point with the inner wall of the water outlet pipe (3); The water outlet pipe (3) is fixedly connected to the outer wall of the mounting base (7); the water outlet pipe (3) is horizontally rotatably connected to a rotating rod (12) extending into it, and a guide plate (13) is fixedly connected to one end of the rotating rod (12) that passes through the water outlet pipe (3). A horizontal plate (36) is fixedly connected to the inner wall of the mounting base (7), and a first conductive block (23) is fixedly connected to the horizontal plate (36). A sliding column (8) that can slide freely passes through the mounting base (7), and a second conductive block (28) is fixedly connected to the sliding column (8). A transmission unit is connected between the rotating rod (12) and the sliding column (8). The transmission unit is used to drive the rotating rod (12) to rotate and make the first conductive block (23) and the second conductive block (28) abut against each other. A first conductive column (27) is fixedly connected to the first conductive block (23), and a second conductive column (20) is fixedly connected to the second conductive block (28). The first conductive column (27) is electrically connected to one electrode of the pressure sensor (24).

2. A deluge valve with an intelligent leak alarm component as described in claim 1, characterized in that, The drive unit includes a sliding pin (38) passing through the other end of the sliding rod (22), and the floating rod (16) is fixedly connected to an ear plate (37). The ear plate (37) has an oblong hole (21) for the sliding pin (38) to be inserted into, and the length direction of the oblong hole (21) is perpendicular to the axial direction of the floating rod (16).

3. A deluge valve with an intelligent leak alarm component as described in claim 1, characterized in that, The pressure sensor (24) and the pressure ring (25) are located inside the mounting base (7). The mounting base (7) is detachably connected to a cover plate (5) on its open side. A first spring (26) is arranged between the pressure ring (25) and the inner surface of the cover plate (5). The two ends of the first spring (26) elastically abut against the pressure ring (25) and the cover plate (5) respectively in the direction of the elastic force.

4. A deluge valve with an intelligent leak alarm component as described in claim 1, characterized in that, The transmission unit includes a gear (18) sleeved on the rotating rod (12), the sliding column (8) is provided with a rack portion (19), the gear (18) meshes with the rack portion (19), the sliding column (8) has a fixed ring (6) sleeved at each end of the mounting base (7), and a second spring (9) is wound around each end of the sliding column (8), the two ends of the second spring (9) elastically abutting against the fixed ring (6) and the outer wall of the mounting base (7) respectively in the direction of the elastic force.

5. A deluge valve with an intelligent leak alarm component as described in claim 4, characterized in that, The outlet pipe (3) is fixedly connected to a ring frame (17), and an airbag (14) that expands to a ring shape is placed inside the ring frame (17).

6. A deluge valve with an intelligent leak alarm component as described in claim 5, characterized in that, The airbag (14) is provided with an air release tube (31), which extends through the water outlet tube (3). A sealing seat (4) is fixed to the outer wall of the water outlet tube (3). The sealing seat (4) is hollow inside and fits onto the air release tube (31). The air release tube (31) communicates with the interior of the sealing seat (4). The outer wall of the sealing seat (4) is provided with an air release port (11) that extends through its interior. A sealing plug (33) that can slide freely is engaged inside the sealing seat (4). The sealing seat (4) is provided with a translation unit for driving the sealing plug (33) to move away from the air release tube (31) when the rotating rod (12) rotates.

7. A deluge valve with an intelligent leak alarm component as described in claim 6, characterized in that, The translation unit includes a rotating shaft (10) rotatably connected to the sealing seat (4). One end of the rotating shaft (10) passes through the sealing seat (4) and is fixedly connected to a rotating disk (35). Two arc-shaped protrusions (29) are fixedly connected to one end of the rotating disk (35) facing the sealing plug (33). Two mounting pins (34) are fixedly connected to the end face of the sealing plug (33). The mounting pins (34) are rotatably fitted with balls (30). A third spring (32) is horizontally arranged inside the sealing seat (4). The third spring (32) elastically abuts against the sealing plug (33), so that the balls (30) can roll in contact with the end face of the arc-shaped protrusions (29) and the end face of the rotating disk (35). The rotating rod (12) is connected to the rotating shaft (10) through a connecting unit.

8. A deluge valve with an intelligent leak alarm component as described in claim 7, characterized in that, The connecting unit includes two pulleys respectively sleeved on the ends of the rotating rod (12) and the rotating shaft (10), and the two pulleys are connected by a V-belt.

9. A deluge valve with an intelligent leak alarm component as described in claim 7, characterized in that, The periphery of the sealing plug (33) is connected to the inner wall of the sealing seat (4) by a key.

Images