Diaphragm type deluge alarm valve
By introducing components such as filter mesh, guide rod and magnetic sealing ring into the diaphragm type rain alarm valve, the problems of impurities are solved and the problems of insufficient sealing are achieved, and stable opening and closing and better sealing effects are achieved.
Patent Information
- Application Number
- CN202422134985.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-02
AI Technical Summary
Traditional diaphragm rain alarm valves are prone to blockage due to impurities during the flow of water, which affects normal use and lacks sealing.
Components such as filter mesh, guide rod and magnetic sealing ring have been designed to filter impurities, guide rod guide valve blocks are stable to move, and magnetic sealing rings improve sealing.
Effectively prevent impurities from entering the valve body, ensure stable opening and closing of the valve body, improve sealing effect, avoid blockage, and enhance closing sealing.
Smart Images
Figure CN223178210U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of diaphragm deluge alarm valves, in particular to a diaphragm deluge alarm valve. Background Technique
[0002] The diaphragm deluge alarm valve is a fire-fighting device in a fire-fighting system, which can control the water flow in the pipeline and give an alarm. When the pressure inside the control cavity of the valve body changes, the valve block will be pushed by the expansion and contraction of the expansion member (6) to squeeze the valve flap to form a closure, or the compression of the expansion member will open the limit of the valve flap to form an opening. This diaphragm deluge alarm valve not only has a simple structure, is safe and reliable, but also is convenient for installation and maintenance.
[0003] For the traditional diaphragm deluge alarm valve, during use, water will flow through the inside of the valve body. When the water passes through the valve body, it is necessary to prevent the water from carrying impurities into the inside of the valve body. Otherwise, with the increase of the use time, the valve body will be blocked, affecting the normal use. Therefore, we propose a diaphragm deluge alarm valve to improve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a diaphragm deluge alarm valve to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A diaphragm deluge alarm valve, including a valve body, an inlet is arranged at the top of the valve body, an outlet is arranged at the bottom of the valve body, a valve cover is installed on the left side inside the valve body through a fixing member, a valve flap is installed between the valve cover and the valve body, an expansion member is movably arranged inside the valve cover, and a valve block is fixed on the right side of the expansion member. A clamping groove is arranged on the right side at the top inside the valve body, a plate body is movably arranged inside the clamping groove, a sealing ring is installed on the outer side wall of the plate body, a groove body is arranged inside the plate body, and a filter screen is installed inside the groove body. A threaded rod is fixed on the left side of the plate body, a rotating seat is movably arranged on the outer side wall of the threaded rod, a bracket is fixed on the outer side wall of the rotating seat, and one side of the bracket is fixed to the outer side wall of the valve body. An installation block is fixed on the left side of the threaded rod, and a rotating block is fixed on the left side of the installation block.
[0006] Preferably, the inner side wall of the rotating seat is uniformly provided with internal threads, and the rotating seat and the threaded rod form a threaded connection.
[0007] Preferably, the cross-section of the plate body is smaller than the cross-section of the clamping groove, and the plate body and the clamping groove form a clamping structure.
[0008] Preferably, connecting blocks are fixed to both the upper and lower ends of the valve block. Guide rods are fixed to the left sides of the connecting blocks. Guide tubes are movably arranged on the left sides of the guide rods, and guide grooves are arranged inside the guide tubes. Fixed blocks are fixed to the left sides of the guide tubes, and one sides of the fixed blocks are fixed to the outer side walls of the valve cover. <> <>
[0009] Preferably, the cross-section of the guide rod is smaller than that of the guide tube, and a sliding structure is formed between the guide rod and the guide tube. <> <>
[0010] Preferably, two groups of guide tubes are provided, and the two groups of guide tubes are symmetrically distributed about the central axis of the valve block. <> <>
[0011] Preferably, a magnetic sealing ring is fixed to the right side of the valve flap, and a metal groove is arranged on the left side inside the valve body. <> <>
[0012] Preferably, the sizes of the magnetic sealing ring and the metal groove are matched, and a clamping structure is formed between the magnetic sealing ring and the metal groove through magnetic force. <> <>
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The diaphragm type deluge alarm valve not only filters the water flowing into the valve body to avoid blockage caused by impurities being brought in, realizes that the valve block stably presses the valve flap, enabling the valve body to be stably opened and closed, but also realizes a better closing and sealing effect of the valve flap on the valve body; <> <>
[0014] (1) By providing components such as a bracket, a threaded rod, a filter net, and a plate body, when the diaphragm type deluge alarm valve is installed at a corresponding position for use, when external water flows into the valve body through the water inlet, the filter net inside the plate body installed at the water inlet position filters impurities in the water, avoiding impurities in the water from entering the diaphragm type deluge alarm valve and causing blockage, and the use effect is better; <> <>
[0015] (2) By providing components such as connecting blocks, guide rods, fixed blocks, and guide tubes, the guide rods and guide tubes in the above components are respectively fixed to the outer side walls of the valve block and the valve cover through the connecting blocks and the fixed blocks. Then, during the process of the telescopic member pushing the valve block to press or reset the valve flap, the guide rod will slide inside the guide tube together to guide the above operations, enabling the valve block to stably press or open and press the valve flap, thereby ensuring the stable opening and closing of the diaphragm type deluge alarm valve; <> <>
[0016] (3) By providing components such as a metal groove and a magnetic sealing ring, when the valve block presses the valve flap to close the diaphragm type deluge alarm valve, the magnetic sealing ring at one end of the valve flap will be magnetically adsorbed into the corresponding metal groove inside the valve body, thereby making the closing seal of the diaphragm type deluge alarm valve stronger. <> Description of the Drawings <>
[0017] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;
[0018] Figure 2 It is a front view sectional structure schematic diagram of the guide tube of the present utility model;
[0019] Figure 3 For the present utility model Figure 1 Partial enlarged structure schematic diagram at position A in;
[0020] Figure 4 It is a front view sectional structure schematic diagram of the plate body of the present utility model.
[0021] In the figure: 1. Valve body; 2. Water inlet; 3. Bracket; 4. Rotating block; 5. Valve flap; 6. Telescopic member; 7. Valve cover; 8. Fixed member; 9. Water outlet; 10. Metal groove; 11. Valve block; 12. Connecting block; 13. Guide rod; 14. Guide groove; 15. Fixed block; 16. Guide tube; 17. Magnetic seal ring; 18. Mounting block; 19. Rotating seat; 20. Threaded rod; 21. Card slot; 22. Filter screen; 23. Tank body; 24. Sealing ring; 25. Plate body. Specific embodiments
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Embodiment 1: Please refer to Figures 1-4, a diaphragm type deluge alarm valve, comprising a valve body 1, an inlet 2 is arranged at the top end of the valve body 1, an outlet 9 is arranged at the bottom end of the valve body 1, a valve cover 7 is installed on the left side inside the valve body 1 through a fixing member 8, a valve flap 5 is installed between the valve cover 7 and the valve body 1, a telescopic member 6 is movably arranged inside the valve cover 7, and a valve block 11 is fixed on the right side of the telescopic member 6. A clamping groove 21 is arranged on the right side at the top end inside the valve body 1, a plate body 25 is movably arranged inside the clamping groove 21, a sealing ring 24 is installed on the outer side wall of the plate body 25, a groove body 23 is arranged inside the plate body 25, and a filter screen 22 is installed inside the groove body 23. A threaded rod 20 is fixed on the left side of the plate body 25, a rotating seat 19 is movably arranged on the outer side wall of the threaded rod 20, a support 3 is fixed on the outer side wall of the rotating seat 19, and one side of the support 3 is fixed with the outer side wall of the valve body 1. An installation block 18 is fixed on the left side of the threaded rod 20, and a rotating block 4 is fixed on the left side of the installation block 18. Internal threads are uniformly arranged on the inner side wall of the rotating seat 19, and a threaded connection is formed between the rotating seat 19 and the threaded rod 20, facilitating the stable driving of the plate body 25 to move up and down through the threaded rod 20. The cross-section of the plate body 25 is smaller than the cross-section of the clamping groove 21, and a clamping structure is formed between the plate body 25 and the clamping groove 21, filtering the valve body 1 and tightly fitting between the valve bodies 1, with better sealing effect;
[0024] Specifically, as Figure 1 and Figure 4 shown, when water flows through the valve body 1 through the inlet 2, the filter screen 22 inside the plate body 25 will filter the impurities in the water to prevent the water from bringing external impurities into the inside of the valve body 1. Subsequently, the rotating block 4 can be held and rotated to make the threaded rod 20 rotate, and then the plate body 25 is driven to move out of the inside of the valve body 1 under the guidance of the support 3 for the plate body 25. Then, the impurities filtered on the surface of the filter screen 22 inside the plate body 25 can be cleaned. After cleaning, the plate body 25 is rotated back into the inside of the valve body 1 for continued use.
[0025] Embodiment 2: Connecting blocks 12 are fixed at both the upper and lower ends of the valve block 11. Guide rods 13 are fixed on the left sides of the connecting blocks 12. Guide tubes 16 are movably arranged on the left sides of the guide rods 13. Guide grooves 14 are arranged inside the guide tubes 16. Fixed blocks 15 are fixed on the left sides of the guide tubes 16, and one side of each fixed block 15 is fixed with the outer side wall of the valve cover 7. The cross-section of the guide rod 13 is smaller than the cross-section of the guide tube 16, and a sliding structure is formed between the guide rod 13 and the guide tube 16. Two groups of guide tubes 16 are provided, and the two groups of guide tubes 16 are symmetrically distributed about the central axis of the valve block 11. The symmetrically distributed guide tubes 16 have a better guiding effect on the valve block 11;
[0026] Specifically, as Figure 1 and Figure 2As shown, when the telescopic member 6 pushes the valve block 11 to squeeze the valve flap 5 to close the diaphragm deluge alarm valve, the guide rod 13 will slide in the guide groove 14 inside the guide tube 16 to guide the valve block 11. When the telescopic member 6 contracts and drives the valve block 11 to open the limit of the valve flap 5, the guide rod 13 will also slide in the guide groove 14 inside the guide tube 16, so that the valve block 11 can stably push the valve flap 5 to open and close.
[0027] Embodiment 3: A magnetic seal ring 17 is fixed to the right side of the valve flap 5, and a metal groove 10 is provided on the left side inside the valve body 1. The magnetic seal ring 17 and the metal groove 10 are dimensionally matched, and a clamping structure is formed between the magnetic seal ring 17 and the metal groove 10 by magnetic force, so that the sealing effect of the valve flap 5 when closing the diaphragm deluge alarm valve is better.
[0028] Specifically, as Figure 1 and Figure 3 shown, when the valve block 11 squeezes the valve flap 5 to close the diaphragm deluge alarm valve, the magnetic seal ring 17 at one end of the valve flap 5 will be magnetically adsorbed into the corresponding metal groove 10 inside the valve body 1, improving the sealing performance of the diaphragm deluge alarm valve when it is closed.
[0029] Working principle: When the present utility model is in use, one side of the telescopic member 6 is the control chamber of the valve. When the pressure in the control chamber changes, when the telescopic member 6 pushes the valve block 11 to squeeze the valve flap 5 to close the diaphragm deluge alarm valve, the control of the water flow is realized. On the contrary, when the telescopic member 6 contracts and drives the valve block 11 to open the limit of the valve flap 5, the valve opens. And when the valve flap 5 is squeezed to close the valve, the magnetic seal ring 17 at one end of the valve flap 5 will be magnetically adsorbed into the corresponding metal groove 10 inside the valve body 1, making the closing of the valve more tight. At the same time, the pressure switch installed outside the valve provides feedback when it senses the internal pressure change, triggering the start of the fire pump. When the pressure in the control chamber decreases, the water flow will make an alarm sound through the hydraulic alarm bell.
[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A diaphragm type deluge alarm valve, comprising a valve body (1), characterized in that: At the top of the valve body (1), a water inlet (2) is provided. At the bottom of the valve body (1), a water outlet (9) is provided. On the left side inside the valve body (1), a valve cover (7) is installed through a fixing member (8). A valve flap (5) is installed between the valve cover (7) and the valve body (1). An expansion member (6) is movably arranged inside the valve cover (7), and a valve block (11) is fixed to the right side of the expansion member (6). On the right side at the top inside the valve body (1), a clamping groove (21) is provided. A plate body (25) is movably arranged inside the clamping groove (21). A sealing ring (24) is installed on the outer side wall of the plate body (25). A groove body (23) is provided inside the plate body (25), and a filter net (22) is installed inside the groove body (23). A threaded rod (20) is fixed to the left side of the plate body (25). A rotating seat (19) is movably arranged on the outer side wall of the threaded rod (20). A bracket (3) is fixed to the outer side wall of the rotating seat (19), and one side of the bracket (3) is fixed to the outer side wall of the valve body (1). An installation block (18) is fixed to the left side of the threaded rod (20), and a rotating block (4) is fixed to the left side of the installation block (18).
2. The diaphragm type deluge alarm valve according to claim 1, characterized in that: Internal threads are evenly provided on the inner side wall of the rotating seat (19), and a threaded connection is formed between the rotating seat (19) and the threaded rod (20).
3. The diaphragm type deluge alarm valve according to claim 1, characterized in that: The cross-section of the plate body (25) is smaller than the cross-section of the clamping groove (21), and a clamping structure is formed between the plate body (25) and the clamping groove (21).
4. A diaphragm type deluge alarm valve according to claim 1, characterized in that: Connection blocks (12) are fixed to both the upper and lower ends of the valve block (11). Guide rods (13) are fixed to the left sides of the connection blocks (12). Guide tubes (16) are movably arranged on the left sides of the guide rods (13). Guide grooves (14) are provided inside the guide tubes (16). Fixed blocks (15) are fixed to the left sides of the guide tubes (16), and one side of each fixed block (15) is fixed to the outer side wall of the valve cover (7).
5. The diaphragm type deluge alarm valve according to claim 4, wherein: The cross-section of the guide rod (13) is smaller than the cross-section of the guide tube (16), and a sliding structure is formed between the guide rod (13) and the guide tube (16).
6. The diaphragm deluge alarm valve according to claim 4, wherein: Two groups of the guide tubes (16) are provided, and the two groups of guide tubes (16) are symmetrically distributed about the central axis of the valve block (11).
7. A diaphragm deluge alarm valve according to claim 1, characterized in that: A magnetic sealing ring (17) is fixed to the right side of the valve flap (5). A metal groove (10) is provided on the left side inside the valve body (1).
8. The diaphragm type deluge alarm valve according to claim 7, wherein: The sizes of the magnetic sealing ring (17) and the metal groove (10) are matched, and a clamping structure is formed between the magnetic sealing ring (17) and the metal groove (10) by magnetic force.