Anti-blocking wet alarm valve

Abstract

The utility model discloses an anti-blocking wet-type alarm valve which comprises a valve mechanism, the valve mechanism comprises a valve body, two ends of the valve body are fixedly connected with fixing mechanisms, the fixing mechanisms comprise nuts, the nuts are fixedly connected to an inner cavity of the valve body, one end of each nut is fixedly connected with a connecting plate, one end of each connecting plate is fixedly connected with a base, and the base is fixedly connected with the valve body. One end of the base is fixedly connected with a second fixing column, one end of the second fixing column is fixedly connected with a fixing plate, the outer side of the base is fixedly connected with a third fixing column, an inner cavity of the third fixing column is slidably connected with a movable column, and one end of the movable column is fixedly connected with a clamping column. When a pipeline is installed, a movable column in a third fixing column is extruded, a clamping column is driven to be embedded into a pipeline clamping groove, a gap is compensated through elastic force provided by a spring, radial sealing is formed, when disassembly is needed, the movable column is pressed to enable the clamping column to be separated from the clamping groove, threaded connection can be relieved by reversely rotating the pipeline, tools are not needed, and maintenance is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a wet alarm valve for preventing blockage. 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. In the event of a fire, the closed sprinkler head sprays water. Because the water pressure balancing orifice cannot replenish water in time, the water pressure above the alarm valve drops. At this time, the water pressure before the valve disc is greater than the water pressure after the valve disc, so the valve disc opens and supplies water to the riser and pipe network. At the same time, water flows along the annular groove of the alarm valve into the timer, pressure switch and hydraulic alarm bell, etc., to send out a fire alarm signal and start the fire pump. However, because current wet alarm valves cannot effectively cope with gaps caused by pipe vibration, thermal expansion and contraction or slight deformation, they can lead to unstable connections or loose leaks.

[0003] For example, CN219579793U discloses a wet alarm valve to prevent clogging, including a wet alarm valve body, a filter box, a delay unit, and a housing. The filter box is inserted into the lower left side of the wet alarm valve body, the delay unit is located on the left side of the filter box, and the housing is fixedly connected to the top left side of the filter box. A filter screen is fixedly connected between the top and bottom of the inner cavity of the filter box. Threaded rods are rotatably connected to the front and rear sides of the bottom left side of the inner cavity of the filter box. A support plate is threadedly connected between the lower sides of the outer walls of the threaded rods, and a cleaning brush is fixedly connected to the right side wall of the support plate. This novel solution can clean the filter screen with the cleaning brush, avoiding clogging of the filter screen due to the accumulation of impurities.

[0004] However, there are shortcomings: the pipeline system can undergo complex changes due to various factors, such as continuous pipeline vibration caused by the operation of mechanical equipment in industrial environments and the start and stop of water pumps in high-rise buildings, thermal expansion and contraction caused by fluctuations in the external environment temperature or changes in the temperature of the fluid in the pipeline, and slight deformation of the pipeline caused by building settlement and wind. These factors can all create a significant gap at the connection between the wet alarm valve and the pipeline, which in turn will damage the stability of the connection between the alarm valve and the pipeline, gradually cause the seals to lose their function, resulting in loosening at the connection and ultimately causing water leakage. Utility Model Content

[0005] The purpose of this utility model is to provide a clog-resistant wet alarm valve to solve the problem mentioned in the background art that current wet alarm valves cannot effectively cope with gaps caused by pipeline vibration, thermal expansion and contraction or slight deformation, which leads to unstable connections or loosening and leakage.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a wet alarm valve for preventing blockage, comprising a valve mechanism. The valve mechanism includes a valve body, with fixing mechanisms fixedly connected to both ends of the valve body. Each fixing mechanism includes a nut, which is fixedly connected to the inner cavity of the valve body. A connecting plate is fixedly connected to one end of the nut, and a base is fixedly connected to one end of the connecting plate. A second fixing post is fixedly connected to one end of the base, and a fixing plate is fixedly connected to one end of the second fixing post. A third fixing post is fixedly connected to the outer side of the base, and a movable post is slidably connected to the inner cavity of the third fixing post. A snap-fit ​​post is fixedly connected to one end of the movable post.

[0008] Furthermore, the inner wall of the fixed column three is slidably connected to the movable column through a spring-loaded assembly. The spring-loaded assembly includes a back plate and a spring. The back plate is fixedly connected to one end of the fixed column three and is fixedly connected to the movable column through the spring.

[0009] Furthermore, a fixing post is fixedly connected to the top of the valve body, and a handle is fixedly connected to the top of the fixing post.

[0010] Furthermore, the inner cavity of the fixed column is rotatably connected to a shaft, and the handle is fixedly connected to the rotating column in the inner cavity of the valve body through the shaft, and the rotating column is rotatably connected to the inner cavity of the valve body.

[0011] Furthermore, a filter plate is fixedly connected to the inner cavity of the valve body, and an air inlet groove is provided in the inner cavity of the valve body. A receiving unit is provided on the side of the filter plate near the air inlet groove, and the receiving unit is fixedly connected to the inner cavity of the valve body.

[0012] Furthermore, a processing unit is fixedly connected to one end of the receiving unit, and an alarm unit is fixedly connected to one end of the processing unit.

[0013] This utility model has the following beneficial effects:

[0014] I. This utility model is equipped with a fixing mechanism. The nuts in the inner cavities of both ends of the valve body engage with the external threads of the pipe through internal threads to complete the initial axial fixing. Then, when the pipe is installed, the movable column inside the fixing column three is squeezed, which drives the snap-fit ​​column to embed into the pipe slot. The elastic force provided by the spring compensates for the gap and forms a radial seal. The base is connected to the fixing plate through the fixing column two, which fits the pipe or the mounting surface and provides secondary limiting to prevent the pipe from rotating circumferentially or displacing axially, thus ensuring long-term connection stability. When disassembly is required, the movable column is pressed to make the snap-fit ​​column disengage from the slot, and the pipe is rotated in the opposite direction to release the threaded connection. No tools are required, and maintenance is convenient.

[0015] Second, based on the above-mentioned beneficial effects, a valve mechanism is also set up. The filter plate in the inner cavity of the valve body intercepts impurities in the water flow, preventing blockage of the valve internal channel or alarm unit, reducing the risk of failure from the source. Then, the receiving unit monitors the water flow data near the filter plate in real time, senses the changes in fluid state through the air inlet slot, and converts the data into electrical signals. The processing unit then performs algorithm analysis on the received electrical signals and compares them with preset thresholds to determine whether there is a blockage or abnormality. If an abnormality is detected, the processing unit triggers the alarm unit to issue an alarm, reminding staff to clean the blockage in time, avoid system failure, improve safety and operation and maintenance efficiency. Finally, the top handle rotates the shaft, driving the rotating column to rotate, realizing the valve opening and closing. The operation is labor-saving and the transmission is stable, reducing mechanical wear. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection of the base of the fixing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the valve body cross-section of the valve mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection of the movable column of the fixing mechanism of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] In the diagram: 1. Valve mechanism; 11. Valve body; 12. Fixed column one; 13. Handle; 14. Rotating column; 15. Filter plate; 16. Air inlet slot; 17. Receiving unit; 18. Processing unit; 19. Alarm unit; 2. Fixing mechanism; 21. Nut; 22. Connecting plate; 23. Base; 24. Fixed column two; 25. Fixing plate; 26. Fixed column three; 27. Movable column; 28. Snap-fit ​​column. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Please see Figure 1-4 As shown, this utility model is a wet alarm valve for preventing blockage, including a valve mechanism 1. The valve mechanism 1 includes a valve body 11. Both ends of the valve body 11 are fixedly connected to a fixing mechanism 2. The fixing mechanism 2 includes a nut 21, which is fixedly connected to the inner cavity of the valve body 11. One end of the nut 21 is fixedly connected to a connecting plate 22. One end of the connecting plate 22 is fixedly connected to a base 23. One end of the base 23 is fixedly connected to a fixing post 24. One end of the fixing post 24 is fixedly connected to a fixing plate 25. The outer side of the base 23 is fixedly connected to a fixing post 26. The inner cavity of the fixing post 26 is slidably connected to a movable post 27. One end of the movable post 27 is fixedly connected to a snap-fit ​​post 28.

[0026] For example, the connecting plate 22 is fixedly connected to one side of the valve body 11 by the nut 21. When the end of the pipe is close to the base 23, the outer wall of the pipe presses the movable column 27 in the inner cavity of the fixed column 3 26, causing it to slide into the fixed column 3 26. The elastic force of the spring keeps the snap-fit ​​column 28 in close contact with the pipe groove, forming a radial clamping force to compensate for the small gaps that may exist in the threaded connection and enhance the sealing performance. When it is necessary to remove the valve body 11, the movable column 27 is manually pressed towards the fixed column 3 26 to make the snap-fit ​​column 28 disengage from the pipe groove, which is convenient and quick.

[0027] The inner wall of the fixed column 26 is slidably connected to the movable column 27 through the spring-loaded assembly. The spring-loaded assembly includes a back plate and a spring. The back plate is fixedly connected to one end of the fixed column 26 and is fixedly connected to the movable column 27 through the spring.

[0028] For example, the spring in the rebound assembly provides a reset force. When the movable post 27 is pushed by an external force, the spring is compressed and stores force. After the external force disappears, the spring pushes the movable post 27 to reset, so that the snap-fit ​​post 28 is always in close contact with the pipe interface, which compensates for the gap caused by the thermal expansion and contraction or slight deformation of the pipe, maintains a long-term stable connection state, and reduces the risk of blockage caused by loose interface.

[0029] Working principle: First, the nuts 21 in the inner cavities at both ends of the valve body 11 engage with the external threads of the pipe through internal threads, completing the initial axial fixation. Then, during pipe installation, the movable column 27 inside the fixed column 26 is squeezed, causing the snap-fit ​​column 28 to be inserted into the pipe groove. The elastic force provided by the spring compensates for the gap, forming a radial seal. The base 23 is connected to the fixed plate 25 through the fixed column 24, fitting against the pipe or mounting surface, providing secondary limit, preventing circumferential rotation or axial displacement of the pipe, and ensuring long-term connection stability. When disassembly is required, press the movable column 27 to disengage the snap-fit ​​column 28 from the groove, and rotate the pipe in the opposite direction to release the threaded connection. No tools are required, making maintenance convenient.

[0030] This step, through the fixing mechanism 2, enables the valve body 11 to be quickly disassembled and assembled with the external pipeline, elastically clamped and sealed, and vibration-resistant and stable, avoiding the risk of loosening, leakage and blockage.

[0031] Please see Figure 1-3 As shown, this embodiment, based on the above embodiment, further includes a valve mechanism 1.

[0032] A fixing post 12 is fixedly connected to the top of the valve body 11, and a handle 13 is fixedly connected to the top of the fixing post 12.

[0033] For example, the handle 13 is connected to the top of the valve body 11 via the fixed column 12, providing the operator with a convenient point of force application. When the valve is opened or closed, the internal rotating column 14 can be rotated by rotating the handle 13 to realize the valve opening and closing control. The operation is labor-saving and the water flow state can be quickly adjusted, improving the ease of use.

[0034] A shaft is rotatably connected to the inner cavity of the fixed column 12. The handle 13 is fixedly connected to the rotating column 14 in the inner cavity of the valve body 11 via the shaft. The rotating column 14 is rotatably connected to the inner cavity of the valve body 11.

[0035] For example, the handle 13 is linked to the rotating column 14 via a shaft to form a mechanical transmission structure. This design accurately transmits external rotational force to the rotating column 14 inside the valve body 11, ensuring the stability and reliability of the valve opening and closing action. At the same time, the rotating connection method can reduce mechanical wear, extend the service life of the valve, and ensure long-term stable operation.

[0036] A filter plate 15 is fixedly connected to the inner cavity of the valve body 11. An air inlet groove 16 is opened in the inner cavity of the valve body 11. A receiving unit 17 is provided on the side of the filter plate 15 near the air inlet groove 16. The receiving unit 17 is fixedly connected to the inner cavity of the valve body 11.

[0037] For example, the filter plate 15 can intercept impurities in the water flow, preventing impurities from clogging the inner cavity of the valve body 11 or the sensitive components of the alarm unit 19, thus reducing the risk of clogging from the source. The air inlet 16, in conjunction with the receiving unit 17, can monitor the water flow status or pressure changes in real time, providing data support for subsequent alarm functions and ensuring that the valve can trigger an early warning in the early stage of clogging.

[0038] One end of the receiving unit 17 is fixedly connected to the processing unit 18, and one end of the processing unit 18 is fixedly connected to the alarm unit 19.

[0039] Specifically, the receiving unit 17 collects water flow data in real time on the side of the filter plate 15 inside the valve body 11 near the air inlet 16, and converts the data into an electrical signal and transmits it to the processing unit 18. The processing unit 18 analyzes and processes the received electrical signal and determines whether there is a blockage or abnormality through a preset algorithm and threshold. If an abnormality is detected, the processing unit 18 immediately sends a trigger signal to the alarm unit 19. After receiving the signal, the alarm unit 19 issues an alarm through sound and light alarms to remind staff to check and deal with the blockage problem in time, so as to realize real-time monitoring and early warning of the blockage status of the wet alarm valve.

[0040] For example, the receiving unit 17 collects water flow data and transmits it to the processing unit 18. The processing unit 18 analyzes the data through a preset algorithm to determine whether there is a blockage or abnormality. If an abnormality is detected, the alarm unit 19 immediately issues an alarm to remind staff to check and clear the blockage in time, so as to avoid system failure due to blockage and improve the safety and intelligence of the wet alarm valve.

[0041] Working principle: First, the filter plate 15 inside the valve body 11 intercepts impurities in the water flow, preventing blockage of the valve channel or alarm unit 19, thus reducing the risk of failure at the source. Then, the receiving unit 17 monitors the water flow data near the filter plate 15 in real time, senses changes in fluid state through the air inlet slot 16, and converts the data into electrical signals. The processing unit 18 then performs algorithmic analysis on the received electrical signals and compares them with preset thresholds to determine whether there is a blockage or abnormality. If an abnormality is detected, the processing unit 18 triggers the alarm unit 19 to issue an alarm, reminding staff to clean the blockage in time, avoid system failure, and improve safety and maintenance efficiency. Finally, the top handle 13 rotates the shaft, driving the rotating column 14 to rotate, realizing the valve opening and closing. The operation is labor-saving and the transmission is stable, reducing mechanical wear.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wet alarm valve for preventing clogging, characterized in that, The device includes a valve mechanism (1), which includes a valve body (11). Both ends of the valve body (11) are fixedly connected to a fixing mechanism (2). The fixing mechanism (2) includes a nut (21). The nut (21) is fixedly connected to the inner cavity of the valve body (11). One end of the nut (21) is fixedly connected to a connecting plate (22). One end of the connecting plate (22) is fixedly connected to a base (23). One end of the base (23) is fixedly connected to a second fixing column (24). One end of the second fixing column (24) is fixedly connected to a fixing plate (25). The outer side of the base (23) is fixedly connected to a third fixing column (26). The inner cavity of the third fixing column (26) is slidably connected to a movable column (27). One end of the movable column (27) is fixedly connected to a snap-fit ​​column (28).

2. The anti-clogging wet alarm valve according to claim 1, characterized in that: The inner wall of the fixed column three (26) is slidably connected to the movable column (27) through the spring-loaded assembly. The spring-loaded assembly includes a back plate and a spring. The back plate is fixedly connected to one end of the fixed column three (26) and is fixedly connected to the movable column (27) through the spring.

3. The anti-clogging wet alarm valve according to claim 1, characterized in that: The valve body (11) is fixedly connected to a fixing post (12) at its top end, and a handle (13) is fixedly connected to the top end of the fixing post (12).

4. The anti-clogging wet alarm valve according to claim 3, characterized in that: The inner cavity of the fixed column (12) is rotatably connected to a shaft, and the handle (13) is fixedly connected to the rotating column (14) in the inner cavity of the valve body (11) through the shaft. The rotating column (14) is rotatably connected to the inner cavity of the valve body (11).

5. The anti-clogging wet alarm valve according to claim 4, characterized in that: A filter plate (15) is fixedly connected to the inner cavity of the valve body (11). An air inlet groove (16) is opened in the inner cavity of the valve body (11). A receiving unit (17) is provided on the side of the filter plate (15) near the air inlet groove (16). The receiving unit (17) is fixedly connected to the inner cavity of the valve body (11).

6. The anti-clogging wet alarm valve according to claim 5, characterized in that: One end of the receiving unit (17) is fixedly connected to the processing unit (18), and one end of the processing unit (18) is fixedly connected to the alarm unit (19).

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