Deluge alarm valve with switch detection function

Abstract

The utility model discloses a deluge alarm valve with a switch detection function, and relates to the technical field of deluge valves. The deluge alarm valve with the switch detection function comprises a valve body, a valve cover, a diaphragm, a valve rod and a detection assembly. The valve body is provided with a water inlet and a water outlet. A valve seat is arranged in the valve body. The diaphragm is arranged between the valve body and the valve cover. A diaphragm cavity is formed between the diaphragm and the valve deck. The diaphragm can abut against the valve seat to separate the water inlet from the water outlet or be separated from the valve seat to communicate the water inlet with the water outlet. One end of the valve rod is fixedly connected with the diaphragm, and the other end extends out of the valve cover. One end of the valve rod extending out of the valve cover is provided with a displacement block. The detection assembly comprises a first displacement sensor and a second displacement sensor. The displacement block is arranged between the first displacement sensor and the second displacement sensor. According to the deluge alarm valve, opening or closing of the deluge alarm valve can be detected in time, and the working state of the deluge alarm valve is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of deluge valves, and particularly to a deluge alarm valve with a switch detection function. Background Art

[0002] A deluge alarm valve is a check valve that can be opened by electric, manual or other methods, enabling water to automatically flow unidirectionally into the sprinkler system while giving an alarm. It is widely used in various open systems, such as deluge systems, water spray systems and water curtain systems, etc. When in the working standby state, the deluge alarm valve seals the fire water on the water supply side of the pipe network, and there is no water in the system side pipe network; in case of a fire, the deluge alarm valve opens to fill the system pipe network with water for fire extinguishing, thus preventing the spread and expansion of the fire.

[0003] After research by the inventor, it is found that the existing deluge alarm valves cannot detect the opening and closing of the valve body in time, and the system cannot judge the working state of the deluge alarm valve. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a deluge alarm valve with a switch detection function, which can detect the opening or closing of the deluge alarm valve in time and obtain the working state of the deluge alarm valve.

[0005] The embodiments of the utility model are implemented as follows:

[0006] The utility model provides a deluge alarm valve with a switch detection function, including:

[0007] A valve body, the valve body is provided with a water inlet and a water outlet, and the valve body is provided with a valve seat;

[0008] A valve cover, the valve cover is fixed on one side of the valve body;

[0009] A diaphragm, the diaphragm is arranged between the valve body and the valve cover, a diaphragm cavity is arranged between the diaphragm and the valve cover, and the diaphragm can abut against the valve seat to cut off the water inlet and the water outlet, or separate from the valve seat to communicate the water inlet and the water outlet;

[0010] A valve rod, one end of the valve rod is fixedly connected with the diaphragm, the other end of the valve rod extends out of the valve cover, and a displacement block is arranged at the end of the valve rod extending out of the valve cover;

[0011] Detection assembly, the detection assembly includes a first displacement sensor and a second displacement sensor, the first displacement sensor and the second displacement sensor are arranged at intervals along the extension direction of the valve stem, and the displacement block is arranged between the first displacement sensor and the second displacement sensor; when the diaphragm abuts against the valve seat, the first displacement sensor detects the displacement block; when the diaphragm moves away from the valve seat, the displacement block moves towards the second displacement sensor so that the second displacement sensor detects the displacement block.

[0012] In an alternative embodiment, a spring is arranged between the valve cover and the diaphragm, a spring seat is arranged on the diaphragm, and the spring is sleeved on the spring seat.

[0013] In an alternative embodiment, one end of the valve stem is fixedly connected to the spring seat.

[0014] In an alternative embodiment, a limiting column is further arranged on the diaphragm, the limiting column is arranged in the spring seat and is arranged opposite to the valve stem.

[0015] In an alternative embodiment, a guiding interface is arranged on the valve cover, and the valve stem passes through the guiding interface.

[0016] In an alternative embodiment, a first bracket is fixedly arranged on the valve body, a guiding bracket is fixedly connected to the first bracket, the valve stem passes through the first bracket, a guiding sleeve is arranged on the guiding bracket, and one end of the valve stem away from the diaphragm passes through the guiding sleeve.

[0017] In an alternative embodiment, a sensor bracket is further fixed on the first bracket, and the first displacement sensor and the second displacement sensor are fixedly arranged on the sensor bracket.

[0018] In an alternative embodiment, a strip-shaped hole is formed in the sensor bracket, the direction of the strip-shaped hole is arranged along the direction of approaching or departing from the valve body, and the first displacement sensor and the second displacement sensor are respectively fixedly connected to the sensor bracket through the strip-shaped hole.

[0019] In an alternative embodiment, the number of the displacement blocks is at least two, and the displacement blocks are arranged at intervals along the extension direction of the valve stem.

[0020] In an alternative embodiment, the displacement block is sleeved on the valve stem, and the displacement block is fixedly connected to the valve stem by screws.

[0021] The beneficial effects of the embodiments of the present utility model are:

[0022] The deluge alarm valve with a switch detection function of the present utility model includes a valve body, a valve cover, a diaphragm, a valve stem and a detection component. Water inlets and outlets are provided at both ends of the valve body. A valve seat is arranged inside the valve body. The diaphragm is arranged between the valve body and the valve cover. A diaphragm chamber is arranged between the diaphragm and the valve cover. The diaphragm can abut against the valve seat to cut off the water inlets and outlets, or separate from the valve seat to connect the water inlets and outlets. One end of the valve stem is fixedly connected to the diaphragm, and the other end of the valve stem extends out of the valve cover. A displacement block is arranged at the end of the valve stem extending out of the valve cover. The detection component includes a first displacement sensor and a second displacement sensor. The first displacement sensor and the second displacement sensor are arranged at intervals along the extension direction of the valve stem. The displacement block is arranged between the first displacement sensor and the second displacement sensor. By driving the displacement block to move through the diaphragm, the first displacement sensor and the second displacement sensor are arranged to detect the position information of the displacement block, so as to judge the position information of the diaphragm, and further detect the opening or closing of the deluge alarm valve. The present utility model can detect the opening or closing of the deluge alarm valve in time and obtain the working state of the deluge alarm valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 FIG. is a schematic structural diagram of the deluge alarm valve with a switch detection function provided by the embodiment of the present utility model;

[0025] Figure 2 FIG. is a first state cross-sectional view of the deluge alarm valve with a switch detection function provided by the embodiment of the present utility model;

[0026] Figure 3 FIG. is a second state cross-sectional view of the deluge alarm valve with a switch detection function provided by the embodiment of the present utility model.

[0027] ICON: 100 - deluge alarm valve; 10 - valve body; 11 - water inlet; 12 - water outlet; 13 - valve seat; 20 - diaphragm; 21 - limit post; 22 - diaphragm chamber; 23 - spring; 24 - spring seat; 30 - valve cover; 31 - guiding interface; 40 - valve stem; 41 - displacement block; 42 - first bracket; 43 - guiding bracket; 431 - guiding sleeve; 44 - sensor bracket; 50 - detection component; 51 - first displacement sensor; 52 - second displacement sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0030] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0032] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] Please refer toFigure 1 and Figure 2 , this embodiment provides a deluge alarm valve 100 with a switch detection function, which includes a valve body 10, a valve cover 30, a diaphragm 20, a valve stem 40 and a detection assembly 50.

[0035] The valve body 10 is provided with a water inlet 11 and a water outlet 12. A valve seat 13 is arranged inside the valve body 10. It can be understood that the water inlet 11 is used to connect to the water inlet pipe, and the water outlet 12 is used to connect to the water outlet pipe.

[0036] The valve cover 30 is fixed to one side of the valve body 10. Specifically, in this embodiment, the valve body 10 and the valve cover 30 are connected by a flange.

[0037] The diaphragm 20 is arranged between the valve body 10 and the valve cover 30. A diaphragm chamber 22 is arranged between the diaphragm 20 and the valve cover 30. The diaphragm 20 can abut against the valve seat 13 to cut off the water inlet 11 and the water outlet 12, or separate from the valve seat 13 to connect the water inlet 11 and the water outlet 12. Specifically, the valve seat 13 is arranged on the inner wall of the valve body 10 on the side away from the valve cover 30. The diaphragm 20 can deform. When the pressure in the diaphragm chamber 22 increases, the diaphragm 20 can move downward to abut against the valve seat 13, thereby cutting off the water inlet pipe and the water outlet pipe. When the pressure in the diaphragm chamber 22 decreases, the pressure of the water inlet pipe is greater than the pressure in the diaphragm chamber 22, and the diaphragm 20 can move upward under the water pressure of the water inlet pipe, and the pressure water of the water inlet pipe flushes open the diaphragm 20, so as to be discharged from the water outlet 12.

[0038] One end of the valve stem 40 is fixedly connected to the diaphragm 20, and the other end of the valve stem 40 extends out of the valve cover 30. Specifically, the up and down movement of the diaphragm 20 can drive the up and down movement of the valve stem 40. A displacement block 41 is arranged at the end of the valve stem 40 extending out of the valve cover 30.

[0039] The detection component 50 includes a first displacement sensor 51 and a second displacement sensor 52. The first displacement sensor 51 and the second displacement sensor 52 are arranged at intervals along the extending direction of the valve stem 40. A displacement block 41 is arranged between the first displacement sensor 51 and the second displacement sensor 52. When the diaphragm 20 abuts against the valve seat 13, the first displacement sensor 51 detects the displacement block 41; when the diaphragm 20 moves away from the valve seat 13, the displacement block 41 moves towards the second displacement sensor 52 so that the second displacement sensor 52 detects the displacement block 41. It can be understood that when the diaphragm 20 abuts against the valve seat 13, the deluge alarm valve 100 is completely closed. At this time, the first displacement sensor 51 is triggered and a valve closing signal is sent out. When the diaphragm 20 gradually moves away from the valve seat 13, the deluge alarm valve 100 gradually opens. At this time, the displacement block 41 moves towards the second displacement sensor 52 and does not trigger the second displacement sensor 52. When the distance between the diaphragm 20 and the valve seat 13 reaches the maximum, the deluge alarm valve 100 is completely opened. At this time, the second displacement sensor 52 detects the displacement block 41, the second displacement sensor 52 is triggered and an in-place valve opening signal is sent out.

[0040] It should be noted that the triggering mechanism of the first displacement sensor 51 and the second displacement sensor 52 for the displacement block 41 in this embodiment is that approaching is sufficient. In other embodiments, the sensitivity of the first displacement sensor 51 and the second displacement sensor 52 can be set as required. For example, the triggering mechanism of the first displacement sensor 51 and the second displacement sensor 52 is adjusted to contact with the displacement block 41. As long as the first displacement sensor 51 and the second displacement sensor 52 can detect the displacement block 41, the present utility model does not limit this.

[0041] In addition, the diaphragm 20 in this embodiment is an elastic diaphragm, which can deform so that the diaphragm 20 moves relative to the valve seat 13. When the upward deformation of the diaphragm 20 reaches the limit, the distance between the diaphragm 20 and the valve seat 13 reaches the maximum, that is, the deluge alarm valve 100 is in place for valve opening.

[0042] Please refer to Figure 2 and Figure 3 . It can be understood that when the pressure in the diaphragm chamber 22 increases, the diaphragm 20 moves towards the valve seat 13, the diaphragm 20 drives the valve stem 40 to move downward, and the displacement block 41 moves downward. When the displacement block 41 is attracted to the first displacement sensor 51, that is, when the first displacement sensor 51 senses the displacement block 41, the diaphragm 20 abuts against the valve seat 13, that is, the deluge valve is closed. When the pressure in the diaphragm chamber 22 decreases, the diaphragm 20 moves towards the valve cover 30, the diaphragm 20 drives the valve stem 40 to move upward, and the displacement block moves upward. When the displacement block 41 is attracted to the second displacement sensor 52, that is, when the second displacement sensor 52 senses the displacement block 41, the distance between the diaphragm 20 and the valve seat 13 reaches the maximum, that is, the deluge alarm valve 100 is in place for valve opening.

[0043] Specifically, a spring 23 is provided between the valve cover 30 and the diaphragm 20. A spring seat 24 is provided on the diaphragm 20. The spring 23 is sleeved on the spring seat 24. It can be understood that by providing the spring 23 between the valve cover 30 and the diaphragm 20, a movement tendency towards the valve seat 13 is applied to the diaphragm 20, facilitating the reset of the diaphragm 20 after it is opened.

[0044] Further, one end of the valve stem 40 is fixedly connected to the spring seat 24. It can be understood that the spring seat 24 abuts against the diaphragm 20 through the spring 23, the valve stem 40 and the spring seat 24 are fixedly connected by bolts, and the valve stem 40 is flexibly fixedly connected to the diaphragm 20 through the spring seat 24. Since the movement of the diaphragm 20 is irregular, the force applied to the spring seat 24 by the diaphragm 20 is also an uneven force. If the spring seat 24 is fixed to the diaphragm 20, it may cause physical damage to the valve stem 40. To avoid damage to the valve stem 40 caused by the diaphragm 20, the valve stem 40 in this embodiment is flexibly connected to the valve stem 40 through the spring seat 24.

[0045] Still further, a limiting post 21 is also provided on the diaphragm 20. The limiting post 21 is arranged inside the spring seat 24 and is arranged opposite to the valve stem 40. It can be understood that the limiting post 21 restricts the relative movement between the spring seat 24 and the diaphragm 20. When the spring seat 24 and the diaphragm 20 move relative to each other by a certain distance, they can be blocked by the limiting post 21.

[0046] A guiding interface 31 is provided on the valve cover 30. The valve stem 40 is inserted into the guiding interface 31. It can be understood that since one end of the valve stem 40 is connected to the diaphragm 20 through the spring seat 24, in order to ensure that the direction of the valve stem 40 remains unchanged, the valve stem 40 is positioned through the guiding interface 31.

[0047] Please refer to Figure 1 , a first bracket 42 is fixedly provided on the valve body 10. A guiding bracket 43 is fixedly connected to the first bracket 42. The valve stem 40 passes through the first bracket 42. A guiding sleeve 431 is provided on the guiding bracket 43. The end of the valve stem 40 away from the diaphragm 20 is inserted into the guiding sleeve 431. It can be understood that the other end of the valve stem 40 is arranged away from the valve body 10. By providing the first bracket 42 and the guiding bracket 43, the end of the valve stem 40 away from the valve body 10 can be positioned.

[0048] Further, a sensor bracket 44 is also fixed on the first bracket 42. The first displacement sensor 51 and the second displacement sensor 52 are fixedly provided on the sensor bracket 44. Specifically, the first displacement sensor 51 is arranged close to the valve body 10, and the second displacement sensor 52 is arranged away from the valve body 10.

[0049] To adjust the heights of the first displacement sensor 51 and the second displacement sensor 52, a strip-shaped hole is provided on the sensor bracket 44. The direction of the strip-shaped hole is set along the direction of approaching or departing from the valve body 10. The first displacement sensor 51 and the second displacement sensor 52 are respectively fixedly connected to the sensor bracket 44 through the strip-shaped hole.

[0050] The number of displacement blocks 41 is at least two. The displacement blocks 41 are arranged at intervals along the extending direction of the valve stem 40. Optionally, in this embodiment, the number of displacement blocks 41 is two. In other embodiments, the number of displacement blocks 41 can be three, four or other numbers, which are not limited in the present utility model. It can be understood that when the valve stem 40 moves downward, the first displacement sensor 51 senses the displacement sensor below; when the valve stem 40 moves upward, the second displacement sensor 52 senses the displacement sensor above.

[0051] To adjust the position of the displacement block 41, in this embodiment, the displacement block 41 is sleeved on the valve stem 40. The displacement block 41 is fixed to the valve stem 40 by screws. It can be understood that loosening the screws can move the displacement block 41 along the valve stem 40. When the displacement block 41 moves to a suitable position, then tighten the screws to fix the displacement block 41.

[0052] The beneficial effects of the deluge alarm valve 100 with a switch detection function provided in this embodiment are:

[0053] The deluge alarm valve 100 with a switch detection function of the present utility model includes a valve body 10, a valve cover 30, a diaphragm 20, a valve stem 40 and a detection assembly 50. Water inlets 11 and water outlets 12 are provided at both ends of the valve body 10. A valve seat 13 is arranged inside the valve body 10. The diaphragm 20 is arranged between the valve body 10 and the valve cover 30. A diaphragm chamber 22 is arranged between the diaphragm 20 and the valve cover 30. The diaphragm 20 can abut against the valve seat 13 to cut off the water inlets 11 and the water outlets 12, or separate from the valve seat 13 to communicate the water inlets 11 and the water outlets 12. One end of the valve stem 40 is fixedly connected to the diaphragm 20, and the other end of the valve stem 40 extends out of the valve cover 30. A displacement block 41 is arranged at the end of the valve stem 40 extending out of the valve cover 30. The detection assembly 50 includes a first displacement sensor 51 and a second displacement sensor 52. The first displacement sensor 51 and the second displacement sensor 52 are arranged at intervals along the extending direction of the valve stem 40. The displacement block 41 is arranged between the first displacement sensor 51 and the second displacement sensor 52. By driving the displacement block 41 to move through the diaphragm 20, the first displacement sensor 51 and the second displacement sensor 52 are set to detect the position information of the displacement block 41, so as to judge the position information of the diaphragm 20, and further detect the opening or closing of the deluge alarm valve 100. The present utility model can timely detect the opening or closing of the deluge alarm valve 100 and obtain the working state of the deluge alarm valve 100.

[0054] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rain alarm valve with switch detection function, characterized in that: include: A valve body, wherein the valve body is provided with a water inlet and a water outlet, and the valve body is provided with a valve seat; A valve cover, the valve cover is fixed to one side of the valve body; A diaphragm, the diaphragm is arranged between the valve body and the valve cover, a diaphragm cavity is arranged between the diaphragm and the valve cover, the diaphragm can abut against the valve seat to isolate the water inlet and the water outlet, or be separated from the valve seat to connect the water inlet and the water outlet; A valve stem, one end of which is fixedly connected to the diaphragm, the other end of which extends out of the valve cover, and a displacement block is provided at one end of the valve stem extending out of the valve cover; A detection component, the detection component includes a first displacement sensor and a second displacement sensor, the first displacement sensor and the second displacement sensor are arranged at intervals along the extension direction of the valve stem, and the displacement block is arranged between the first displacement sensor and the second displacement sensor; when the diaphragm abuts against the valve seat, the first displacement sensor detects the displacement block; when the diaphragm is away from the valve seat, the displacement block moves toward the second displacement sensor so that the second displacement sensor detects the displacement block.

2. The rain alarm valve with switch detection function according to claim 1 is characterized in that: A spring is arranged between the valve cover and the diaphragm, a spring seat is arranged on the diaphragm, and the spring is sleeved on the spring seat.

3. The rain alarm valve with switch detection function according to claim 2 is characterized in that: One end of the valve stem is fixedly connected to the spring seat.

4. The rain alarm valve with switch detection function according to claim 3 is characterized in that: The diaphragm is also provided with a limiting column, which is arranged in the spring seat and is arranged opposite to the valve stem.

5. The rain alarm valve with switch detection function according to claim 1 is characterized in that: The valve cover is provided with a guide interface, and the valve stem is inserted into the guide interface.

6. The rain alarm valve with switch detection function according to claim 1 is characterized in that: A first bracket is fixedly provided on the valve body, a guide bracket is fixedly connected to the first bracket, the valve stem passes through the first bracket, a guide sleeve is provided on the guide bracket, and one end of the valve stem away from the diaphragm is inserted into the guide sleeve.

7. The rain alarm valve with switch detection function according to claim 6 is characterized in that: A sensor bracket is also fixed on the first bracket, and the first displacement sensor and the second displacement sensor are fixedly arranged on the sensor bracket.

8. The rain alarm valve with switch detection function according to claim 7, characterized in that: The sensor bracket is provided with a strip hole, the direction of the strip hole is arranged along a direction close to or away from the valve body, and the first displacement sensor and the second displacement sensor are fixedly connected to the sensor bracket through the strip hole respectively.

9. The rain alarm valve with switch detection function according to claim 1, characterized in that: The number of the displacement blocks is at least two, and the displacement blocks are arranged at intervals along the extension direction of the valve stem.

10. The rain alarm valve with switch detection function according to claim 1, characterized in that: The displacement block is sleeved on the valve stem, and the displacement block is fixedly connected to the valve stem via screws.

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