Deluge valve with smart protection device

Abstract

This invention discloses a deluge valve with an intelligent protection device, relating to the field of deluge valve technology. It includes a valve body, a protrusion, a valve cover mounting portion, a valve cover, a sealing diaphragm, a positioning portion, a mounting base, an elastic drive mechanism, a pressure block, rotating plates, and a compression drive mechanism. The compression drive mechanism drives two rotating plates to flip downwards, causing the lower ends of the rotating plates to respectively compress the surfaces of the sealing diaphragm corresponding to the axial sides of the valve body. By setting the compression drive mechanism, the rotating plates flip downwards, and the lower ends of the two rotating plates respectively compress the sides of the protrusion. Combined with the compression of the sealing diaphragm by the pressure block, when the sealing diaphragm wears down, the rotating plates can compress the sealing diaphragm, reducing or even eliminating the gap between the sealing diaphragm and the protrusion. This prevents water leakage inside the valve body after the sealing diaphragm wears down, and also reduces the impact of fluid on the worn areas of the sealing diaphragm, thereby reducing the degree of wear on the sealing diaphragm.

Description

Technical Field

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

[0002] A diaphragm deluge alarm valve is a type of water spray fire extinguishing device. When the detector in the protected area transmits the detected fire signal to the control center, the control center processes the signal and then opens the deluge valve to spray water onto the entire protected area, thereby preventing the fire from spreading and escalating.

[0003] Chinese Patent Publication No. CN219432508U discloses a diaphragm-type temperature-controlled deluge alarm valve, including a valve body with mounting plates welded to both sides and a valve cover on the top. Connecting bolts are installed on both sides of the valve cover, with the bottom of each bolt penetrating inside the valve body. This diaphragm-type temperature-controlled deluge alarm valve incorporates a sealing diaphragm, a sealing groove, a return spring, and a water temperature sensor. The water temperature sensor monitors the water temperature in real time. When the water temperature rises, the sensor sends a signal to the control center. The control center processes the signal and sends a start signal to the solenoid valve on the deluge valve. This releases pressure to the internal water through the pressure relief port, simultaneously moving the sealing diaphragm upwards and compressing the return spring. This causes the sealing groove to move away from the protruding part of the valve body, connecting the left inlet chamber and the right outlet chamber. The outlet chamber then supplies water to the pipeline network for fire suppression spraying in the protected area.

[0004] In the aforementioned prior art, the deluge valve uses a return spring to generate elastic pressure on the sealing diaphragm when sealing the pipeline, causing the sealing diaphragm to abut against the protruding part of the valve body (referred to as the protrusion in this application), thereby achieving sealing of the valve body. However, during use, the following shortcomings still exist: First, the sealing diaphragm is mainly made of rubber, which inevitably ages and wears after long-term use. This results in a gap between the sealing diaphragm and the protruding part of the valve body, causing water leakage inside the valve body and affecting the sealing effect of the sealing diaphragm on the valve body. Second, during prolonged leakage, the fluid inside the valve body may exacerbate the widening of the gap as it flows out, and intensify the wear on the surface of the sealing diaphragm, affecting the service life of the valve body. Therefore, a deluge valve is needed that can automatically trigger the structural unit to promptly seal and protect the inside of the valve body when the sealing diaphragm wears.

[0005] Therefore, we propose a deluge valve with an intelligent protection device. Summary of the Invention

[0006] The purpose of this invention is to provide a deluge valve with an intelligent protection device to solve the problems mentioned in the background art. Through a squeezing drive mechanism, the rotating plate squeezes the sealing diaphragm, preventing water leakage inside the valve body due to diaphragm wear. Simultaneously, it reduces the impact of fluid on the worn areas of the sealing diaphragm, thereby reducing the degree of diaphragm wear. Furthermore, through the structure of a liquid level sensor, a sealing baffle, and a sealing unit, the rotating plate is intelligently driven to operate by detecting whether there is water leakage inside the valve body, preventing further leakage. The spiral spring on the rotating pivot can accumulate and release elastic potential energy, ensuring that the sealing baffle does not significantly affect the fluid flow rate and effectively seals the outlet, facilitating the accumulation of leaked liquid.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a deluge valve with an intelligent protection device, comprising a valve body, wherein the two ends of the valve body are defined as an inlet end and an outlet end, respectively; the outer wall of the valve body is provided with a protrusion recessed inward therein; the outer wall of the valve body is also provided with a valve cover mounting part corresponding to the protrusion; a valve cover is detachably connected to the end face of the valve cover mounting part; the valve cover mounting part has a sealing diaphragm mounting cavity; the sealing diaphragm mounting cavity is in communication with the interior of the valve body and a sealing diaphragm is mounted thereon; the lower side of the sealing diaphragm is provided with an upwardly recessed positioning part; the positioning part cooperates with the protrusion; and further comprising:

[0008] Mounting base, which is integrally formed and fixed to the valve cover, and has a pressure relief port on the top of the mounting base;

[0009] An elastic drive mechanism is provided on the inner top wall of the mounting base;

[0010] A pressure block, which is connected to the elastic drive mechanism, and the lower surface of the pressure block is provided with a positioning groove that matches the shape of the positioning part;

[0011] Two rotating plates, each with an L-shaped longitudinal section, are rotatably connected at one end to the pressure block. The two rotating plates are respectively located at opposite ends of the pressure block.

[0012] The extrusion drive mechanism is used to drive the two rotating plates to flip downwards, and to make the lower ends of the rotating plates extrude the surfaces of the sealing diaphragm corresponding to the axial sides of the valve body.

[0013] Furthermore, the elastic drive mechanism includes:

[0014] A fixing cylinder, which is vertically connected to the inner top wall of the mounting base;

[0015] The telescopic column is coaxially inserted into the fixed cylinder and slides freely within the fixed cylinder; the pressure block is fixedly connected to the lower end of the telescopic column.

[0016] A reset spring is vertically installed inside the fixed cylinder, and its two ends elastically abut against the telescopic column and the inner top wall of the mounting base, respectively, in the direction of the elastic force.

[0017] Furthermore, a limiting pin is fixedly connected to one end of the telescopic column that passes through the fixed cylinder, and the fixed cylinder has an oblong hole for the limiting pin to be inserted into, the length direction of the oblong hole being parallel to the axial direction of the fixed cylinder.

[0018] Furthermore, the extrusion drive mechanism includes:

[0019] An electromagnet, the electromagnet being connected to the upper surface of the pressure block;

[0020] A sliding ring is sleeved on the telescopic column and can slide freely up and down. The sliding ring is used in conjunction with the electromagnet.

[0021] Two hinge rods are respectively rotatably connected to opposite sides of the sliding ring, and the end of the hinge rod away from the sliding ring is rotatably connected to the rotating plate.

[0022] Furthermore, a buffer spring is wound around the telescopic column, and the two ends of the buffer spring elastically abut against the sliding ring and the electromagnet respectively in the direction of the spring force.

[0023] Furthermore, the water outlet is integrally formed and fixedly connected to a sealing chamber with an annular longitudinal section. A sealing baffle is rotatably connected inside the sealing chamber via a mounting pivot. The sealing baffle and the protrusion form a water storage space. When the thickness direction of the sealing baffle is parallel to the axial direction of the valve body, the water outlet will be sealed. The sealing baffle has a through groove penetrating both sides of its thickness direction. The sealing baffle has a sealing unit for sealing the through groove. A liquid level sensor is installed on the water outlet, and the detection probe of the liquid level sensor extends into the water storage space.

[0024] Furthermore, the sealing chamber end face has a blind hole-shaped mounting cavity, one end of the pivot is inserted into the mounting cavity, and a spiral spring is installed in the mounting cavity, with both ends of the spiral spring fixed to the pivot and the inner wall of the mounting cavity, respectively.

[0025] Furthermore, the sealing unit includes:

[0026] A baffle is engaged within a communicating cavity inside a sealing baffle, and the baffle slides freely along the axial direction of the valve body within the communicating cavity. Notches are provided at both the upper and lower ends of the baffle. When the baffle abuts against the inner wall of the communicating cavity facing the water inlet, it will seal the through groove.

[0027] A reset component is provided to drive the baffle to move toward the water inlet end.

[0028] Furthermore, the surface of the baffle is provided with a rubber layer.

[0029] Furthermore, the reset component includes:

[0030] A guide post, which is horizontally fixed to the baffle and slidably extends out of the sealing baffle;

[0031] A light-load spring is sleeved around the guide post, and its two ends elastically abut against the baffle and the inner wall of the communicating cavity, respectively, in the direction of the elastic force.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] This invention, by setting up a compression drive mechanism, causes the rotating plates to flip downwards, and enables the lower ends of the two rotating plates to respectively compress the two sides of the protrusion. In conjunction with the pressure block, the compression of the sealing diaphragm allows the rotating plates to compress the sealing diaphragm when it wears, thereby reducing or even eliminating the gap between the sealing diaphragm and the protrusion. This prevents water leakage inside the valve body after the sealing diaphragm wears down, and also reduces the impact of fluid on the worn area of ​​the sealing diaphragm, thereby reducing the degree of wear of the sealing diaphragm.

[0034] This invention, by setting up a liquid level sensor, a sealing baffle, and a sealing unit, allows the leakage of liquid into the water storage space when the sealing diaphragm wears down and causes internal leakage. The sealing unit seals the through groove on the sealing baffle, allowing the liquid to accumulate rapidly in the water storage space. The liquid level sensor then collects the liquid level data in the water storage space and transmits it to an external control module. The control module then controls the electromagnet to be powered on, causing the electromagnet to generate magnetism, which in turn drives the sliding ring to slide downwards. This causes the hinge rod to drive the rotating plate to rotate downwards, thereby clamping the surface of the sealing diaphragm. In this way, the rotating plate is intelligently driven to move by detecting whether there is internal leakage in the valve body, thus preventing further leakage.

[0035] This invention incorporates a spiral spring. When the valve body is activated, the sealing diaphragm moves upward, allowing fluid from the inlet to enter the outlet. At this point, the liquid flow rate is relatively high, impacting the sealing baffle and causing it to rotate around a pivot to a horizontal position. During rotation, the pivot causes the spiral spring to contract and accumulate elastic potential energy, ensuring that the sealing baffle does not significantly affect the fluid flow rate. When the valve body is closed, the accumulated elastic potential energy of the spiral spring is released, causing the pivot to rotate the sealing baffle to a vertical position, thus continuing to seal the outlet and facilitating the accumulation of leaked liquid. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of a deluge valve with an intelligent protection device according to the present invention;

[0037] Figure 2 for Figure 1 Cross-sectional view of the middle structure;

[0038] Figure 3 for Figure 2 Enlarged schematic diagram of the local structure at point A;

[0039] Figure 4 for Figure 1 A schematic diagram of the central structure from the front view angle;

[0040] Figure 5 for Figure 4 Cross-sectional view of the middle structure;

[0041] Figure 6 for Figure 5 Enlarged schematic diagram of the local structure at point B;

[0042] Figure 7 This is a schematic diagram of the sealing baffle and the baffle assembly structure in this invention;

[0043] Figure 8 for Figure 7 Schematic diagram of the explosive decomposition of the medium structure;

[0044] Figure 9 for Figure 7 A cross-sectional view from another angle.

[0045] The following are explanations of the reference numerals in the figures: 1. Inlet; 2. Pressure relief port; 3. Mounting base; 4. Liquid level sensor; 5. Outlet; 6. Scroll spring; 7. Sealing chamber; 8. Valve cover mounting part; 9. Protrusion; 10. Valve cover; 11. Rotating plate; 12. Sealing diaphragm; 13. Pivot; 14. Sealing baffle; 15. Fixed cylinder; 16. Return spring; 17. Waist-shaped hole; 18. Telescopic column; 19. Limiting pin; 20. Positioning part; 21. Pressure block; 22. Buffer spring; 23. Sliding ring; 24. Hinge rod; 25. Electromagnet; 26. Through groove; 27. Baffle; 28. Light load spring; 29. ​​Guide column; 30. Notch; 31. Connecting cavity. Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please see Figures 1-9 The present invention provides a technical solution: a rain shower valve with an intelligent protection device, including a valve body, the two ends of the valve body are defined as an inlet end 1 and an outlet end 5 respectively, the outer wall of the valve body is provided with a protrusion 9 that is recessed inward, the outer wall of the valve body is also provided with a valve cover mounting part 8 corresponding to the protrusion 9, the end face of the valve cover mounting part 8 is detachably connected to a valve cover 10, the valve cover mounting part 8 has a sealing diaphragm mounting cavity, the sealing diaphragm mounting cavity is connected to the inside of the valve body and a sealing diaphragm 12 is installed thereon, the lower side of the sealing diaphragm 12 is provided with an upwardly recessed positioning part 20, the positioning part 20 is used in conjunction with the protrusion 9, a mounting seat 3 is integrally welded on the valve cover 10, the mounting seat 3 is hollow inside and a pressure relief port 2 is opened on the top of the mounting seat 3, the pressure relief port 2 is connected to an external pressure relief pipeline;

[0048] Furthermore, a fixed cylinder 15 is connected to the inner top wall of the mounting base 3 by a vertical screw. A telescopic column 18 that can slide freely up and down is coaxially inserted inside the fixed cylinder 15. A pressure block 21 is welded to the lower end of the telescopic column 18. The length of the pressure block 21 matches the length of the protrusion 9. A positioning groove matching the shape of the positioning part 20 is opened on the lower surface of the pressure block 21. A return spring 16 is vertically installed inside the fixed cylinder 15. The two ends of the return spring 16 elastically abut against the telescopic column 18 and the inner top wall of the mounting base 3, respectively.

[0049] When the valve body is closed, the fluid in the inlet 1 will enter the pressure relief port 2 through the pressure relief pipe, and then enter the valve cover 10, and exert pressure on the sealing diaphragm 12, thereby causing the middle part of the sealing diaphragm 12 to move toward the protrusion 9 until the positioning part 20 on the sealing diaphragm 12 engages with the protrusion 9. At the same time, the return spring 16 generates an elastic resisting force on the telescopic column 18, thereby causing the telescopic column 18 to drive the pressure block 21 to move toward the protrusion 9, so that the positioning groove on the pressure block 21 engages with the positioning part 20 of the sealing diaphragm 12, and exerts a squeezing force on the sealing diaphragm 12, thereby sealing the inside of the valve body with the sealing diaphragm 12, and preventing the inlet 1 and outlet 5 from communicating with each other.

[0050] In addition, a limiting pin 19 is fixed to one end of the telescopic column 18 that passes through the fixed cylinder 15. The fixed cylinder 15 has an oblong hole 17 for the limiting pin 19 to be inserted. The length direction of the oblong hole 17 is parallel to the axial direction of the fixed cylinder 15. The limiting pin 19 slides and is limited in the oblong hole 17, so that the telescopic column 18 will not rotate on its own.

[0051] When the sealing diaphragm 12 is used for a long time and ages and wears down, a gap may form between the inner arc surface of the positioning part 20 and the engaging surface of the protrusion 9 on the sealing diaphragm 12. The fluid at the inlet end 1 may flow into the outlet end 5 through this gap, which will reduce the sealing performance of the valve body. Moreover, because the fluid pressure is relatively high, if it flows in the gap for a long time, it will cause greater wear to the sealing diaphragm 12. Therefore, in this embodiment, a rotating plate 11 is rotatably connected to each side of the pressure block 21 corresponding to the inlet end 1 and the outlet end 5. The longitudinal section of the rotating plate 11 is L-shaped, and the lower end of the rotating plate 11 is turned downwards. When rotating, it can contact the surface of the sealing diaphragm 12. An electromagnet 25 is connected to the upper surface of the pressure block 21. A sliding ring 23 that can slide freely up and down is sleeved on the telescopic column 18. The sliding ring 23 works in conjunction with the electromagnet 25. The material of the sliding ring 23 is any one of iron, cobalt, and nickel. A hinge rod 24 is rotatably connected to each side of the sliding ring 23, and the end away from the sliding ring 23 is rotatably connected to the rotating plate 11. In addition, a buffer spring 22 is wrapped around the telescopic column 18. The two ends of the buffer spring 22 elastically abut against the sliding ring 23 and the electromagnet 25 respectively in the direction of the elastic force.

[0052] When the sealing diaphragm 12 wears, the electromagnet 25 is energized and generates magnetism, which in turn generates a magnetic attraction force on the sliding ring 23, causing the sliding ring 23 to slide downward and compress the buffer spring 22. When sliding downward, the sliding ring 23 will drive the hinge rod 24 to swing, which will drive the rotating plate 11 to swing downward. When swinging downward, the lower end of the rotating plate 11 will clamp the surface of the sealing diaphragm 12, which will increase the tightness between the sealing diaphragm 12 and the protrusion 9, thereby reducing the gap between the sealing diaphragm 12 and the inner wall of the protrusion 9, so that the valve body will not leak water.

[0053] Therefore, the extrusion drive mechanism, consisting of an electromagnet 25, a sliding ring 23, and two hinge rods 24, causes the rotating plate to flip downwards, allowing the lower ends of the two rotating plates to extrude the two sides of the protrusion. This, combined with the pressure block's extrusion of the sealing diaphragm, enables the rotating plate to compress the sealing diaphragm when it wears, reducing the gap between the sealing diaphragm and the protrusion until it disappears. This prevents water leakage inside the valve body after the sealing diaphragm wears down, and also reduces the impact of fluid on the worn area of ​​the sealing diaphragm, thereby reducing the degree of wear. The electromagnet 25 is connected to the upper surface of the pressure block 21; the sliding ring 23 is sleeved on the telescopic column 18 and slides freely up and down, and the sliding ring 23 works in conjunction with the electromagnet 25; the two hinge rods 24 are rotatably connected to opposite sides of the sliding ring 23, with the end furthest from the sliding ring 23 corresponding to the rotation of the rotating plate 11.

[0054] Furthermore, since the staff cannot detect the wear of the sealing diaphragm 12 in time, it is necessary to set up a component to detect water leakage and then automatically connect the power supply of the electromagnet 25. In this embodiment, the component includes a sealing chamber 7 integrally formed and fixed to the water outlet 5, with a longitudinal section of annular. A sealing baffle 14 is rotatably connected to the sealing chamber 7 through a mounting pivot 13. The sealing baffle 14 and the protrusion 9 form a water storage space. When the thickness direction of the sealing baffle 14 is parallel to the axial direction of the valve body, it will close the water outlet 5. The sealing baffle 14 has a through groove 26 that penetrates both sides of its thickness direction. A liquid level sensor 4 is installed on the water outlet 5. The detection probe of the liquid level sensor 4 extends into the water storage space.

[0055] The sealing chamber 7 has a blind hole-type installation cavity on its end face. One end of the pivot 13 is inserted into the installation cavity. A spiral spring 6 is installed in the installation cavity. The two ends of the spiral spring 6 are fixed to the pivot 13 and the inner wall of the installation cavity, respectively. The sealing baffle 14 has a connecting cavity 31. A baffle 27 is engaged in the connecting cavity 31 and slides freely along the axial direction of the valve body in the connecting cavity 31. The baffle 27 has notches 30 at both the upper and lower ends. When the baffle 27 abuts against the inner wall of the connecting cavity 31 facing the water inlet end 1, it will close the through groove 26. A guide post 29 is horizontally welded on the baffle 27 and slides out of the sealing baffle 14. A light-load spring 28 is wound on the guide post 29 and the two ends of the light-load spring 28 elastically abut against the baffle 27 and the inner wall of the connecting cavity 31, respectively, in the direction of the elastic force.

[0056] When the valve body is in the closed state, the positioning part 20 on the sealing diaphragm 12 engages with the protrusion 9. If the sealing diaphragm 12 is worn, causing fluid to enter the water storage space, the water pressure in the water storage space is relatively low. Therefore, the elastic resisting force of the light-load spring 28 on the baffle 27 causes the end face of the baffle 27 to abut against the inner wall of a through groove 26 adjacent to the water inlet 1, thereby preventing the fluid in the water storage space from entering the connecting cavity 31 and the water outlet 5. At this time, the fluid will accumulate in the water storage space. When the accumulated liquid level rises, the liquid level sensor 4 detects the liquid level signal and feeds it back to the external control module. The control module controls the external power supply to energize the electromagnet 25. After the electromagnet 25 is energized, it generates magnetism, so that the electromagnet 25 is automatically activated when there is water leakage inside the valve body.

[0057] When the fluid accumulation in the water storage space is large, the fluid will exert a pushing force on the baffle 27, causing the baffle 27 to overcome the elastic resistance of the light-load spring 28, and thus causing the baffle 27 to move towards the inside of the connecting cavity 31. This allows the fluid to enter the connecting cavity 31 through the through groove 36 and the notch 30 of the baffle 27, and then enter the outlet 5 through another through groove 36, preventing the fluid accumulation in the water storage space from becoming too large. In addition, when the valve body is normally started, the fluid at the inlet 1 will enter the outlet 5. At this time, due to the high flow rate and pressure of the fluid, the fluid will impact the sealing baffle. Plate 14 causes the sealing baffle 14 to flip by 90 degrees, that is, the sealing baffle 14 changes from a vertical state to a horizontal state. During the rotation, the pivot 13 will drive the scroll spring 6 to contract and accumulate elastic potential energy. When the valve body is closed, the elastic potential energy of the scroll spring 6 is released and drives the pivot 13 to rotate in the opposite direction, thereby causing the sealing baffle 14 to change from a horizontal state to a vertical state, continuing to seal the water outlet 5. In addition, the surface of the baffle 27 is provided with a rubber layer (not shown in the figure), which makes the sealing effect between the baffle 27 and the inner wall of the connecting cavity 31 better.

[0058] In summary, by incorporating a liquid level sensor, a sealing baffle, and a sealing unit, when the sealing diaphragm wears down, causing leakage inside the valve body, the leaked liquid will accumulate in the water storage space. The sealing unit seals the through-groove on the sealing baffle, allowing the liquid to accumulate rapidly in the water storage space. The liquid level sensor then collects the liquid level data from the storage space and transmits it to the external control module. The control module then powers on the electromagnet, energizing it and causing it to become magnetic. This drives the sliding ring to slide downwards, causing the hinge rod to rotate the plate downwards. The rotating plate then clamps the sealing diaphragm surface, thus allowing the liquid level inside the valve body to be detected. The valve body is intelligently driven to rotate to prevent leakage. By incorporating a spiral spring, when the valve body is activated, the sealing diaphragm moves upward, allowing fluid from the inlet to enter the outlet. At this point, the liquid flow is relatively large, impacting the sealing baffle and causing it to rotate around a pivot to a horizontal position. During rotation, the pivot causes the spiral spring to contract and accumulate elastic potential energy, ensuring that the sealing baffle does not significantly affect the fluid flow. When the valve body is closed, the elastic potential energy accumulated by the spiral spring is released, causing the pivot to rotate the sealing baffle to a vertical position, thus continuing to seal the outlet and facilitating the accumulation of leaked liquid.

[0059] The working principle of this invention is as follows: When the valve body is in the closed state, the fluid in the inlet 1 will enter the pressure relief port 2 through the pressure relief pipe, and then enter the valve cover 10, and exert pressure on the sealing diaphragm 12, thereby causing the middle part of the sealing diaphragm 12 to move towards the protrusion 9 until the positioning part 20 on the sealing diaphragm 12 engages with the protrusion 9. At the same time, the return spring 16 generates an elastic resisting force on the telescopic column 18, thereby causing the telescopic column 18 to drive the pressure block 21 to move towards the protrusion 9, so that the positioning groove on the pressure block 21 engages with the positioning part 20 of the sealing diaphragm 12, and exerts a squeezing force on the sealing diaphragm 12, thereby sealing the inside of the valve body with the sealing diaphragm 1, and preventing the inlet 1 and outlet 5 from communicating with each other.

[0060] When the valve body is in the closed state, the positioning part 20 on the sealing diaphragm 12 engages with the protrusion 9. If the sealing diaphragm 12 is worn, causing fluid to enter the water storage space, the water pressure in the water storage space is relatively low. Therefore, the elastic resisting force of the light-load spring 28 on the baffle 27 causes the end face of the baffle 27 to abut against the inner wall of a through groove 26 adjacent to the water inlet 1, thereby preventing the fluid in the water storage space from entering the connecting cavity 31 and the water outlet 5. At this time, the fluid will accumulate in the water storage space. When the accumulated liquid level rises, the liquid level sensor 4 detects the liquid level signal and feeds it back to the external control module. The control module controls... An external power source energizes the electromagnet 25, which generates magnetism, thereby creating a magnetic attraction force on the sliding ring 23. This causes the sliding ring 23 to slide downwards and compress the buffer spring 22. As it slides downwards, the sliding ring 23 drives the hinge rod 24 to swing, which in turn drives the rotating plate 11 to swing downwards. When it swings downwards, the lower end of the rotating plate 11 clamps the surface of the sealing diaphragm 12, increasing the tightness between the sealing diaphragm 12 and the protrusion 9. This reduces the gap between the sealing diaphragm 12 and the inner wall of the protrusion 9, preventing water leakage from the valve body. When water leaks inside the valve body, the electromagnet 25 is automatically activated.

[0061] When the fluid accumulation in the water storage space is large, the fluid will exert a pushing force on the baffle 27, causing the baffle 27 to overcome the elastic resistance of the light-load spring 28, and thus causing the baffle 27 to move towards the inside of the connecting cavity 31. This allows the fluid to enter the connecting cavity 31 from the notch 30 of the baffle 27 through the through groove 36, and then enter the outlet 5 through another through groove 36, preventing the fluid accumulation in the water storage space from becoming too large. In addition, when the valve body is normally started, the fluid at the inlet 1 will enter the outlet 5, at which time... Due to the high flow rate and pressure of the fluid, the fluid will impact the sealing baffle 14, causing the sealing baffle 14 to flip over at an angle of 90 degrees, that is, the sealing baffle 14 changes from a vertical state to a horizontal state. During the rotation, the pivot 13 will drive the scroll spring 6 to contract and accumulate elastic potential energy. When the valve body is closed, the elastic potential energy of the scroll spring 6 is released, and it drives the pivot 13 to rotate in the opposite direction, thereby causing the sealing baffle 14 to change from a horizontal state to a vertical state, continuing to seal the water outlet 5.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A deluge valve with an intelligent protection device, comprising a valve body, wherein the two ends of the valve body are defined as an inlet (1) and an outlet (5), respectively, and the outer wall of the valve body is provided with a protrusion (9) recessed inward therein, characterized in that, The outer wall of the valve body is also provided with a valve cover mounting part (8) corresponding to the protrusion (9). The valve cover mounting part (8) is detachably connected to a valve cover (10) at its end face. The valve cover mounting part (8) has a sealing diaphragm mounting cavity. The sealing diaphragm mounting cavity is connected to the inside of the valve body and a sealing diaphragm (12) is mounted thereon. The sealing diaphragm (12) has an upwardly recessed positioning part (20) on its lower side. The positioning part (20) is used in conjunction with the protrusion (9). It also includes: Mounting seat (3), which is integrally formed and fixed to the valve cover (10), and the top of the mounting seat (3) is provided with a pressure relief port (2). An elastic drive mechanism is disposed on the inner top wall of the mounting base (3); The pressure block (21) is connected to the elastic drive mechanism, and the lower surface of the pressure block (21) is provided with a positioning groove that matches the shape of the positioning part (20); Two rotating plates (11) are provided, the longitudinal section of the rotating plates (11) is L-shaped, and one end of the rotating plates (11) is rotatably connected to the pressure block (21). The two rotating plates (11) are respectively located at opposite ends of the pressure block (21). The extrusion drive mechanism is used to drive the two rotating plates (11) to flip downwards and cause the lower ends of the rotating plates (11) to extrude the sealing diaphragm (12) on the surfaces of the valve body on both sides of the axial direction.

2. A deluge valve with intelligent protection device according to claim 1, characterized in that, The elastic drive mechanism includes: A fixed cylinder (15) is vertically connected to the inner top wall of the mounting base (3); Telescopic column (18), the telescopic column (18) is coaxially inserted into the fixed cylinder (15) and slides freely in the fixed cylinder (15), the pressure block (21) is fixed to the lower end of the telescopic column (18); The reset spring (16) is vertically installed inside the fixed cylinder (15), and its two ends in the direction of elastic force respectively elastically abut against the telescopic column (18) and the inner top wall of the mounting base (3).

3. A deluge valve with intelligent protection device according to claim 2, characterized in that, One end of the telescopic column (18) that passes through the fixed cylinder (15) is fixedly connected to a limiting pin (19). The fixed cylinder (15) has an oblong hole (17) for the limiting pin (19) to be inserted. The length direction of the oblong hole (17) is parallel to the axial direction of the fixed cylinder (15).

4. A deluge valve with intelligent protection device according to claim 2, characterized in that, The extrusion drive mechanism includes: An electromagnet (25) is connected to the upper surface of the pressure block (21); A sliding ring (23) is sleeved on the telescopic column (18) and slides freely up and down. The sliding ring (23) is used in conjunction with the electromagnet (25). Two hinge rods (24) are rotatably connected to opposite sides of the sliding ring (23), and one end away from the sliding ring (23) is rotatably connected to the rotating plate (11).

5. A deluge valve with an intelligent protection device according to claim 4, characterized in that, A buffer spring (22) is wound around the telescopic column (18), and the two ends of the buffer spring (22) elastically abut against the sliding ring (23) and the electromagnet (25) respectively in the direction of elastic force.

6. A deluge valve with intelligent protection device according to claim 4, characterized in that, The outlet end (5) is integrally formed and fixed with a sealing chamber (7) with an annular longitudinal section. A sealing baffle (14) is rotatably connected inside the sealing chamber (7) via a mounting pivot (13). The sealing baffle (14) and the protrusion (9) form a water storage space. When the thickness direction of the sealing baffle (14) is parallel to the axial direction of the valve body, the outlet end (5) will be closed. A through groove (26) is provided on the sealing baffle (14) that penetrates both sides of its thickness direction. A sealing unit for closing the through groove (26) is provided inside the sealing baffle (14). A liquid level sensor (4) is installed on the outlet end (5). The detection probe of the liquid level sensor (4) extends into the water storage space.

7. A deluge valve with intelligent protection device according to claim 6, characterized in that, The sealing chamber (7) has a blind hole-shaped mounting cavity on its end face. One end of the pivot (13) is inserted into the mounting cavity. A spiral spring (6) is installed in the mounting cavity. The two ends of the spiral spring (6) are respectively fixed to the pivot (13) and the inner wall of the mounting cavity.

8. A deluge valve with intelligent protection device according to claim 6, characterized in that, The sealing unit includes: Baffle (27) is engaged in the communicating cavity (31) opened inside the sealing baffle (14), and the baffle (27) slides freely along the axial direction of the valve body in the communicating cavity (31). The baffle (27) has notches (30) at both the upper and lower ends. When the baffle (27) abuts against the inner wall of the communicating cavity (31) facing the water inlet end (1), it will close the through groove (26). A reset component is used to drive the baffle (27) to move toward the water inlet (1).

9. A deluge valve with intelligent protection device according to claim 8, characterized in that, The surface of the baffle (27) is provided with a rubber layer.

10. A deluge valve with an intelligent protection device according to claim 8, characterized in that, The reset component includes: Guide post (29), which is horizontally fixed to the baffle (27) and slides through the sealing baffle (14). A light-load spring (28) is wrapped around the guide post (29), and its two ends in the direction of elastic force elastically abut against the baffle (27) and the inner wall of the communicating cavity (31).

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