Anti-blocking wet alarm valve for fire fighting

Abstract

The utility model discloses an anti-blocking wet alarm valve for fire fighting. The anti-blocking wet alarm valve comprises an alarm valve body, a water conveying pipe and an anti-blocking mechanism. According to the anti-blocking alarm valve, the water conveying pipe is arranged at the right end of the alarm valve body, the right end of the water conveying pipe is connected with the anti-blocking mechanism, the anti-blocking mechanism comprises the transition cabin, the filter screen, the discharging opening, the blocking piece, the sealing mechanism, the cleaning mechanism and the like, impurities in water can be filtered through the filter screen under mutual cooperation, and the filter screen is cleaned through the cleaning mechanism; the filtering effect is kept, impurities can be discharged through the discharging opening after cleaning, the situation that impurities and residues flow to the alarm valve body, and consequently blockage is caused is avoided, the anti-blocking effect is good, flexibility is high, use is easy and convenient, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the relevant field of wet alarm valves, in particular to an anti-clogging wet alarm valve for fire fighting. Background Art

[0002] A wet alarm valve is a one-way valve that only allows water to flow into the sprinkler system in one direction and alarms at a specified flow rate. Normally, the water pressure before and after the valve disc of the wet alarm valve is equal.

[0003] Chinese patent CN218188153U discloses an anti-clogging wet alarm valve, comprising a wet alarm valve body, the bottom of the right side of the wet alarm valve body is connected to an experimental ball valve, the right side of the experimental ball valve is connected to a filter box, a filter screen is fixedly connected between the top and the bottom of the inner cavity of the filter box, the right side of the top of the filter box is fixedly connected to a limiting shell, the inner cavity of the limiting shell is provided with a limiting plate, the bottom of the limiting plate is fixedly connected to a vertical rod, and the bottom of the vertical rod passes through the inner cavity of the filter box. The utility model solves the problem that the wet alarm valve does not have anti-clogging function by arranging a wet alarm valve body, an experimental ball valve, a filter box, a filter screen, a limiting shell, a limiting plate, a vertical rod, a cleaning brush, a pull rod, a spring, a first three-way pipe, a drainage head, a delay device, a second three-way pipe, a hydraulic alarm, a pressure switch, a connecting plate, a fixing hole and a drainage pipe. The wet alarm valve has the advantage of anti-clogging.

[0004] This patent uses a cleaning brush to clean the filter, but the residues produced after cleaning cannot be discharged in time, which may cause the residues to re-accumulate in other positions in the wet alarm valve, causing blockage, and has certain limitations. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides an anti-clogging wet alarm valve for fire fighting.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fire-fighting anti-blocking wet alarm valve, comprising an alarm valve body, the right end of which is connected to a water pipe, and also comprising an anti-blocking mechanism arranged at the right end of the water pipe;

[0007] The anti-blocking mechanism includes a transition chamber, a filter screen, a discharge port, a blocking piece, a closing mechanism and a cleaning mechanism. The left and right ends of the transition chamber are connected to a group of water pipes. A group of filter screens is provided at the middle end of the transition chamber, a discharge port is provided at the inner bottom end, a group of blocking pieces is connected to the discharge port, and a closing mechanism is provided on the top surface of the transition chamber, and a cleaning mechanism is connected to the middle end of the top.

[0008] Preferably, the closing mechanism includes a top plate, a closing plate and a through opening. The top surface of the transition cabin is provided with a top plate, and the left and right ends of the bottom surface of the top plate are connected to a group of closing plates. The bottom ends of the two groups of closing plates extend through and into the transition cabin, and a through opening is provided at the middle end of the top plate.

[0009] Preferably, the cleaning mechanism includes a movable cylinder, a movable disk, a movable rod, a cleaning brush, a spring and a movable arm. The middle end of the transition cabin top is connected to a movable cylinder corresponding to the opening. A group of movable disks is provided at the top of the movable cylinder. A group of movable rods are connected to the left and right ends of the bottom surface of the movable disk. The bottom ends of the two groups of movable rods extend through to the top of the transition cabin and are connected to a cleaning brush. The outer end of the bottom surface of the movable disk is connected to the bottom end of the movable cylinder through a group of springs, and a group of movable arms is provided on the top surface of the movable disk. The top end of the movable arm extends through to the top of the movable cylinder.

[0010] Preferably, the two groups of cleaning brushes can contact the left and right sides of the filter respectively.

[0011] Preferably, flanges are provided at the upper and lower ends of the outer side of the movable cylinder, and grooves corresponding to the flanges are provided at the inner side of the through opening.

[0012] Preferably, the discharge port and the sealing member are connected via threads, and a sealing strip is provided at the connection.

[0013] Preferably, sealing rings are provided on the sides of the two sets of closing plates that are away from each other, so as to block the two sets of water pipes.

[0014] Beneficial effects of the utility model:

[0015] The utility model uses a water pipe arranged at the right end of the alarm valve body, and the right end of the water pipe is connected with an anti-blocking mechanism, which includes components such as a transition cabin, a filter screen, a discharge port, a blocking piece, a closing mechanism and a cleaning mechanism. Under the cooperation of each other, impurities in the water can be filtered through the filter screen, and the filter screen can be cleaned by the cleaning mechanism to maintain its filtering effect. After cleaning, impurities can be discharged through the discharge port to prevent impurity residues from flowing to the alarm valve body and causing blockage. The utility model has good anti-blocking effect, high flexibility, simple and convenient use, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the anti-blocking mechanism structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the movable cylinder of the utility model.

[0019] Among them: alarm valve body -1, water pipe -2, anti-blocking mechanism -3, transition chamber -31, filter screen -32, discharge port -33, blocking piece -34, closing mechanism -35, cleaning mechanism -36, top plate -351, closing plate -352, through port -353, movable cylinder -361, movable disk -362, movable rod -363, cleaning brush -364, spring -365, movable arm -366. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0021] See also Figure 1 The utility model provides an anti-clogging wet alarm valve for fire fighting, including an alarm valve body 1, a water pipe 2 is connected to the right end of the alarm valve body 1, and also includes an anti-clogging mechanism 3 arranged at the right end of the water pipe 2.

[0022] See also Figure 2 The utility model provides an anti-clogging wet alarm valve for fire fighting. The anti-clogging mechanism 3 includes a transition chamber 31, a filter screen 32, a discharge port 33, a plugging member 34, a closing mechanism 35 and a cleaning mechanism 36. The left and right ends of the transition chamber 31 are both connected with a group of water pipes 2, which is conducive to the flow of water. A group of filter screens 32 for filtering impurities in the water is installed at the middle end of the transition chamber 31. A discharge port 33 is opened at the bottom end of the transition chamber 31. A group of plugging members 34 are threadedly connected to the discharge port 33, and a sealing strip is provided at the connection to improve the sealing performance. The top surface of the transition chamber 31 is provided with a closing mechanism 35, and the middle end of the top is connected with a cleaning mechanism 36.

[0023] See also Figure 2-3 The utility model provides an anti-blocking wet alarm valve for fire fighting. The closing mechanism 35 includes a top plate 351, a closing plate 352 and a through port 353. The top surface of the transition chamber 31 is provided with a top plate 351, and the left and right ends of the bottom surface of the top plate 351 are connected with a group of closing plates 352. The bottom ends of the two groups of closing plates 352 extend through the transition chamber 31. The two groups of closing plates 352 are provided with sealing rings on the sides away from each other, which can block the two groups of water pipes 2. The middle end of the top plate 351 is provided with a through port 353 through which a movable cylinder 361 can pass. The top plate 351 can move up and down on the outside of the movable cylinder 361. Furthermore, flanges are provided on the upper and lower ends of the outer side of the movable cylinder 361, and grooves corresponding to the flanges are provided on the inner side of the through port 353, which can limit and fix the top plate 351.

[0024] See also Figure 3The utility model provides an anti-clogging wet alarm valve for fire fighting. The cleaning mechanism 36 includes a movable cylinder 361, a movable disk 362, a movable rod 363, a cleaning brush 364, a spring 365 and a movable arm 366. The middle end of the top of the transition cabin 31 is connected with a movable cylinder 361 corresponding to the through port 353. A group of movable disks 362 are arranged at the top of the movable cylinder 361. The left and right ends of the bottom surface of the movable disk 362 are connected with a group of movable rods 363. The bottom ends of the two groups of movable rods 363 extend through and extend to the top of the transition cabin 31, and are connected with a cleaning brush 364. The two groups of cleaning brushes 364 can respectively contact the left and right sides of the filter 32 to clean the filter 32. The outer end of the bottom surface of the movable disk 362 is connected to the inner bottom end of the movable cylinder 361 through a group of springs 365, which can realize the limiting and automatic resetting of the movable disk 362. A group of movable arms 366 are provided on the top surface of the movable disk 362. The top of the movable arm 366 extends through and extends to the top of the movable cylinder 361. The movable arm 366 can be pressed down by applying force to drive the movable disk 362 and the movable rod 363 to move downward, and the filter 32 can be cleaned by the cleaning brush 364.

[0025] Here’s how it works:

[0026] The utility model is placed in a suitable position for use. When in use, force can be applied to press down the top plate 351 first, so as to drive the two groups of closing plates 352 to move into the transition chamber 31, block the two groups of water pipes 2, and limit and fix them through the flange at the outer bottom end of the movable cylinder 361, and then press the movable arm 366 to drive the movable disk 362 and the movable rod 363 to move downward, and the filter screen 32 is cleaned by the cleaning brush 364. The spring 365 can drive the movable disk 362 to reset. After repeating several times, the blocking member 34 can be rotated to separate it from the discharge port 33, and the water mixed with impurities can be discharged. Then the blocking member 34 can be reinstalled, and the top plate 351 can be pulled up to drive the two groups of closing plates 352 to move upward, so that the water pipe 2 is reconnected with the inside of the transition chamber 31.

[0027] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wet-type anti-clogging alarm valve for fire fighting, comprising an alarm valve body (1), wherein the right end of the alarm valve body (1) is connected to a water pipe (2); Features: It also includes an anti-blocking mechanism (3) arranged at the right end of the water delivery pipe (2); The anti-blocking mechanism (3) comprises a transition chamber (31), a filter screen (32), a discharge port (33), a blocking member (34), a closing mechanism (35) and a cleaning mechanism (36); the left and right ends of the transition chamber (31) are both connected to a group of water pipes (2); a group of filter screens (32) are provided at the middle end of the transition chamber (31); a discharge port (33) is provided at the bottom end; a group of blocking members (34) are connected to the discharge port (33); the top surface of the transition chamber (31) is provided with a closing mechanism (35); and the middle end of the top is connected to the cleaning mechanism (36); The closing mechanism (35) comprises a top plate (351), a closing plate (352) and a through opening (353); the top surface of the transition chamber (31) is provided with the top plate (351); the left and right ends of the bottom surface of the top plate (351) are both connected to a group of closing plates (352); the bottom ends of the two groups of closing plates (352) extend through the transition chamber (31); and the middle end of the top plate (351) is provided with a through opening (353); The cleaning mechanism (36) comprises a movable cylinder (361), a movable disk (362), a movable rod (363), a cleaning brush (364), a spring (365) and a movable arm (366); the middle end of the top of the transition chamber (31) is connected to a movable cylinder (361) corresponding to the through opening (353); a group of movable disks (362) are provided at the top of the movable cylinder (361); the left and right ends of the bottom surface of the movable disk (362) are both connected to a group of movable rods (363); the bottom ends of the two groups of movable rods (363) extend through and extend to the top of the transition chamber (31) and are connected to a cleaning brush (364); the outer end of the bottom surface of the movable disk (362) is connected to the bottom end of the movable cylinder (361) via a group of springs (365); the top surface of the movable disk (362) is provided with a group of movable arms (366); the top ends of the movable arms (366) extend through and extend to the top of the movable cylinder (361).

2. According to claim 1, a fire-fighting anti-clogging wet alarm valve is characterized in that: The two groups of cleaning brushes (364) can contact the left and right sides of the filter screen (32) respectively.

3. According to claim 1, the anti-clogging wet alarm valve for fire fighting is characterized in that: The upper and lower ends of the outer side of the movable cylinder (361) are both provided with flanges, and the inner side of the through opening (353) is both provided with grooves corresponding to the flanges.

4. According to claim 1, the anti-clogging wet alarm valve for fire fighting is characterized in that: The discharge port (33) and the blocking member (34) are connected via threads, and a sealing strip is provided at the connection.

5. The anti-clogging wet alarm valve for fire fighting according to claim 1, characterized in that: The two sets of closing plates (352) are both provided with sealing rings on the sides away from each other, which can block the two sets of water pipes (2).

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