Alarm valve with protective structure

Abstract

The utility model provides an alarm valve with a protective structure, which relates to the technical field of wet alarm valves and comprises a stand column fixedly mounted on the surface of one support frame and a through groove formed in the surface of the stand column in a matched manner. The protection device further comprises a long groove formed in the side face of the stand column, a displacement plate sliding in the long groove in a matched mode and a sliding plate sliding on the wall in a matched mode, a protection box is fixedly installed on the side face of the sliding plate, and a bolt is in threaded connection with the surface of the displacement plate. By means of the protection device, the protection box can move downwards to cover the valve body inside the protection box, so that the valve body is protected, and the probability that the valve body is damaged due to collision is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wet alarm valve technology, and in particular to an alarm valve with a protective structure. Background Technology

[0002] A wet alarm valve is a one-way valve that allows water to flow into a sprinkler system in only one direction and triggers an alarm at a specified flow rate. Normally, the water pressure before and after the valve disc is equal. Water flows through a pressure balancing orifice in the guide pipe to maintain pressure balance before and after the valve disc. Due to the weight of the valve disc and the difference in total water pressure before and after it, the valve disc is closed, with the total pressure above the valve disc greater than the total pressure below the valve core. In the event of a fire, the closed sprinkler head sprays water. Because the pressure balancing orifice cannot replenish water quickly enough, the water pressure above the alarm valve drops. At this point, the water pressure before the valve disc becomes greater than the water pressure after it, causing the valve disc to open and supply water to the riser and pipe network. Simultaneously, water flows along the annular groove of the alarm valve into the timer, pressure switch, and hydraulic alarm bell, triggering a fire alarm signal and starting the fire pump.

[0003] When existing alarm valves are installed on T-junction pipelines, it is inconvenient to install protective devices, which causes the alarm valves to be exposed for a long time, making them susceptible to damage from external impacts. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned above in the background art by proposing an alarm valve with a protective structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an alarm valve with a protective structure, comprising two support frames, a three-way pipe placed between the two support frames, a valve body fixedly installed on the three-way pipe, and a protective device for protecting the valve body provided on the surface of one of the support frames.

[0006] Preferably, the protective device includes a column fixedly installed on the surface of one of the support frames and a through groove opened on its surface. A vertical rod is fixedly installed between the inner walls of both ends of the through groove and a sliding plate that slides on its outer wall. A protective box is fixedly installed on the side of the sliding plate, and a notch is opened on the top surface of the protective box.

[0007] Preferably, the protective device further includes an elongated groove formed on the side of the column and a sliding displacement plate inside the groove, wherein the end of the displacement plate away from the elongated groove is fixedly connected to the sliding plate.

[0008] Preferably, the displacement plate is threaded with bolts, and the side of the column is evenly provided with multiple threaded holes that match the bolts.

[0009] The effect achieved by the above components is to allow the protective box to move downwards and enclose the valve body inside it, thereby protecting the valve body and reducing the probability of damage caused by impact.

[0010] Preferably, the protective box has a window opening device on its side for easy connection with the valve body. The window opening device includes a groove on the side of the protective box and a sliding connecting plate inside it. The protective box has a baffle that is slidably connected inside. The end of the connecting plate away from the groove is fixedly connected to the baffle. A slot is provided on the inner wall surface of one side of the protective box.

[0011] Preferably, the window opening device further includes a strip groove formed on the inner wall surface of the horizontal end of the connecting plate near the groove, and a sliding movable plate inside the groove. A plug rod is fixedly installed on the surface of the movable plate, and multiple plug holes are evenly formed on one side surface of the protective box.

[0012] Preferably, a spring is fixedly installed on the surface of the movable plate away from the insertion rod, and the end of the spring away from the movable plate is fixedly connected to the inner wall of the vertical end of the connecting plate.

[0013] Preferably, the window opening device further includes a pull rod fixedly installed on the surface of the movable plate at the end away from the insert rod, and a pull plate is fixedly installed at the end of the pull rod away from the movable plate. The pull rod is slidably connected to the connecting plate by means of the pull plate.

[0014] The effects achieved by the above components are as follows: the connecting plate moves the baffle; the baffle seals the notch; the rod and hole restrict the position of the connecting plate inside the groove; the spring restricts the position of the moving plate inside the slot; and the pull plate and rod move the moving plate inside the slot.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] In this invention, by setting a protective device, the protective box can be moved downward to cover the valve body inside, thereby protecting the valve body and reducing the probability of damage caused by impact. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 Another structural diagram from a different angle;

[0019] Figure 3 This utility model Figure 2Another structural diagram from a different angle;

[0020] Figure 4 This utility model Figure 2 A schematic diagram of the three-dimensional structure at point A in the middle;

[0021] Figure 5 This utility model Figure 3 A schematic diagram of the three-dimensional structure at point B.

[0022] Legend: 1. Support frame; 2. Protective device; 21. Column; 22. Through groove; 23. Vertical rod; 24. Slide plate; 25. Protective box; 26. Long groove; 27. Displacement plate; 28. Bolt; 29. ​​Threaded hole; 3. Window opening device; 301. Groove; 302. Connecting plate; 303. Baffle; 304. Slot; 305. Strip groove; 306. Moving plate; 307. Insert rod; 308. Insertion hole; 309. Spring; 310. Pull rod; 311. Pull plate; 4. T-shaped pipe; 5. Valve body. Detailed Implementation

[0023] Example 1, as Figure 1-5 As shown, an alarm valve with a protective structure includes two support frames 1, a three-way pipe 4 is placed between the two support frames 1, and a valve body 5 is fixedly installed on the three-way pipe 4. A protective device 2 for protecting the valve body 5 is provided on the surface of one of the support frames 1.

[0024] Reference Figure 2-4 As shown in this embodiment: the protective device 2 includes a column 21 fixedly installed on the surface of one of the support frames 1 and a through groove 22 opened on its surface. A vertical rod 23 is fixedly installed between the inner walls of both ends of the through groove 22 and a sliding plate 24 is fixedly installed on its outer wall. A protective box 25 is fixedly installed on the side of the sliding plate 24. A notch is opened on the top surface of the protective box 25. The protective device 2 also includes a long groove 26 opened on the side of the column 21 and a sliding displacement plate 27 inside it. The end of the displacement plate 27 away from the long groove 26 is fixedly connected to the sliding plate 24. A bolt 28 is threadedly connected to the surface of the displacement plate 27. A plurality of threaded holes 29 matching the bolt 28 are evenly opened on the side of the column 21, so that the protective box 25 can move downward to cover the valve body 5 inside it, thereby protecting the valve body 5 and reducing the probability of damage caused by impact.

[0025] Reference Figure 3-5As shown in this embodiment: the side of the protective box 25 is provided with a window opening device 3 for convenient connection with the valve body 5. The window opening device 3 includes a groove 301 formed on the side of the protective box 25 and a connecting plate 302 that slides inside it. A baffle 303 is slidably connected inside the protective box 25. The end of the connecting plate 302 away from the groove 301 is fixedly connected to the baffle 303. A slot 304 is formed on the inner wall surface of one side of the protective box 25. The window opening device 3 also includes a strip groove 305 formed on the inner wall surface of the horizontal end of the connecting plate 302 near the groove 301 and a sliding movable part inside it. The movable plate 306 has a rod 307 fixedly installed on its surface. The protective box 25 has multiple holes 308 evenly opened on one side surface. A spring 309 is fixedly installed on the surface of the movable plate 306 away from the rod 307. The end of the spring 309 away from the movable plate 306 is fixedly connected to the inner wall of the vertical end of the connecting plate 302. The window opening device 3 also includes a pull rod 310 fixedly installed on the surface of the movable plate 306 away from the rod 307. A pull plate 311 is fixedly installed on the end of the pull rod 310 away from the movable plate 306. The pull rod 310 is slidably connected to the connecting plate 302 by means of the pull plate 311.

[0026] Working principle: When this device is needed, firstly, slide the two support frames 1 onto the outer wall surface of the tee pipe 4, using the support frames 1 to support the tee pipe 4. Then, loosen the bolt 28 and unscrew it from the threaded hole 29. The separation of the bolt 28 and the threaded hole 29 causes the displacement plate 27 to lose its limit inside the long groove 26. At this point, the displacement plate 27 can be moved. The movement of the displacement plate 27 inside the long groove 26 drives the slide plate 24 to move on the surface of the vertical rod 23. The movement of the slide plate 24 on the surface of the vertical rod 23 drives the protective box 25 to move. The protective box 25 moves to enclose the valve body 5 inside it. When the valve body 5 is inside the protective box 25, the bolt 28 is screwed into the corresponding threaded hole 29 again to fix the position of the displacement plate 27 inside the long groove 26. Through the cooperation of the above structure, the protective box 25 can enclose the valve body 5 inside it, thereby protecting the valve body 5. When it is necessary to connect the external pipeline to the valve body 5, the pull plate 311 can be pulled. The movement of the pull plate 311 drives the pull rod 310 to move. The moving plate 306 moves within the slot 305, compressing the spring 309. Simultaneously, the movement of the moving plate 306 within the slot 305 also moves the insertion rod 307, causing it to move out of the insertion hole 308. This separation of the insertion rod 307 and the insertion hole 308 causes the connecting plate 302 to lose its restraint within the groove 301. At this point, the connecting plate 302 can be moved, causing the baffle 303 to move. 03 moves itself out of the slot 304, and at the same time the baffle 303 moves so that the notch is no longer blocked. When the baffle 303 moves to the appropriate position, the pull plate 311 is released, and the spring force of the spring 309 makes the insertion rod 307 re-insert into the corresponding insertion hole 308, thereby fixing the position of the connecting plate 302 inside the groove 301. Through the cooperation of the above structure, the baffle 303 can release the obstruction of the notch, so that the external pipe and valve body 5 can be connected without removing the protective device 2.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. An alarm valve with a protection structure, comprising two support frames (1), a tee pipe (4) is placed between the two support frames (1), a valve body (5) is fixedly installed on the tee pipe (4), characterized in that: The surface of one of the support frames (1) is provided with a protection device (2) for protecting the valve body (5).

2. The alarm valve with a protective structure according to claim 1, characterized in that: The protection device (2) comprises a column (21) fixedly installed on the surface of one of the support frames (1), and a through groove (22) formed on the surface of the column (21) in a matched manner, two end inner walls of the through groove (22) are fixedly installed with a vertical rod (23), and an outer wall of the vertical rod (23) is slidably connected with a sliding plate (24), a side surface of the sliding plate (24) is fixedly installed with a protection box (25), and a top surface of the protection box (25) is formed with a notch.

3. The alarm valve with a protective structure according to claim 2, characterized in that: The protection device (2) further comprises a long slot (26) formed on a side surface of the column (21), and a displacement plate (27) slidably arranged in the long slot (26), and one end of the displacement plate (27) away from the long slot (26) is fixedly connected with the sliding plate (24).

4. The alarm valve with a protective structure according to claim 3, characterized in that: A screw (28) is threadedly connected to the surface of the displacement plate (27), and a plurality of screw holes (29) matched with the screw (28) are uniformly formed on the side surface of the column (21).

5. The alarm valve with a protective structure according to claim 4, characterized in that: A windowing device (3) for facilitating connection with the valve body (5) is arranged on the side surface of the protection box (25), the windowing device (3) comprises a recess (301) formed on the side surface of the protection box (25), and a connecting plate (302) slidably arranged in the recess (301), a baffle (303) slidably arranged in the protection box (25), one end of the connecting plate (302) away from the recess (301) is fixedly connected with the baffle (303), and an insertion slot (304) is formed on the inner wall surface of one side of the protection box (25).

6. The alarm valve with a protective structure according to claim 5, characterized in that: The windowing device (3) further comprises a strip-shaped slot (305) formed on the inner wall surface of the horizontal end of the side of the connecting plate (302) close to the recess (301), and a moving plate (306) slidably arranged in the strip-shaped slot (305), an insertion rod (307) is fixedly installed on the surface of the moving plate (306), and a plurality of insertion holes (308) are uniformly formed on the surface of one side of the protection box (25).

7. The alarm valve with a protective structure according to claim 6, characterized in that: A spring (309) is fixedly installed on the surface of one end of the moving plate (306) away from the insertion rod (307), and one end of the spring (309) away from the moving plate (306) is fixedly connected with the inner wall of the vertical end of the connecting plate (302).

8. The alarm valve with a protective structure according to claim 7, characterized in that: The windowing device (3) further comprises a pull rod (310) fixedly installed on the surface of one end of the moving plate (306) away from the insertion rod (307), a pull plate (311) is fixedly installed on one end of the pull rod (310) away from the moving plate (306), and the pull rod (310) is slidably connected with the connecting plate (302) through the pull plate (311).

Images