A diaphragm type constant pressure sprinkler alarm valve

Abstract

The utility model relates to fire fighting equipment technical field, concretely relates to a diaphragm type constant pressure deluge alarm valve, including deluge alarm valve body, filter mechanism, the filter mechanism includes filter assembly, auxiliary cleaning subassembly and two convenient dismounting subassembly, the filter assembly includes the annular fixed base of fixed connection in the inner wall of deluge alarm valve body, the inner wall sliding connection of annular fixed base has annular mounting seat, the inner wall fixed connection of annular mounting seat has filter screen. The utility model discloses the filter assembly that sets up, can carry out effective filtration to the water flow of entering deluge alarm valve body, through the auxiliary cleaning subassembly that sets up, can knock the filter screen through annular knock board, shake off the impurity on filter screen, avoid filter screen block, through the convenient dismounting subassembly that sets up, can realize the quick dismounting between annular mounting seat and annular fixed base, thereby being convenient for the maintenance operation such as washing, replacement of filter screen.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically to a diaphragm-type constant pressure deluge alarm valve. Background Technology

[0002] As a core control component of automatic sprinkler systems, deluge alarm valves play a vital role in fire safety in various buildings, factories, warehouses, and other locations. When a fire occurs, it can quickly open upon receiving a control signal, causing the sprinkler systems throughout the protected area to spray water simultaneously, achieving large-area fire suppression, effectively curbing the spread of fire, and reducing casualties and property losses.

[0003] A search revealed a patent document with publication number CN210250989U that discloses a diaphragm-type constant pressure deluge alarm valve. The valve includes a sealing assembly inside a connecting pipe, a sealing port on the diaphragm corresponding to a positioning protrusion, a second arc-shaped rubber pad fixedly installed at the bottom of a first arc-shaped rubber pad, a second spring fixedly installed at the top of the top plate, a cleaning assembly inside the flange, a rubber ring embedded inside the flange, and a stainless steel mesh fixedly installed inside the positioning ring. This invention improves the sealing effect.

[0004] The aforementioned existing technologies often have the following problems when used:

[0005] During use, the existing diaphragm-type constant pressure deluge alarm valve often suffers from impurity buildup affecting its filtration efficiency. Furthermore, the filter components are inconvenient to disassemble and clean, and their installation is not secure enough, which affects the equipment's maintenance efficiency and service life. Corresponding solutions are needed. Utility Model Content

[0006] To address the aforementioned shortcomings of existing technologies, this utility model provides a diaphragm-type constant pressure rain alarm valve, which can effectively solve the problems of impurity accumulation affecting filtration efficiency and inconvenient disassembly and cleaning of filter components in existing technologies.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a diaphragm-type constant pressure deluge alarm valve, including a deluge alarm valve body;

[0009] The filtration mechanism includes a filter assembly, an auxiliary cleaning assembly, and two easy-to-disassemble assemblies. The filter assembly includes an annular fixing seat fixedly connected to the inner wall of the deluge alarm valve body. An annular mounting seat is slidably connected to the inner wall of the annular fixing seat, and a filter screen is fixedly connected to the inner wall of the annular mounting seat.

[0010] According to the above-mentioned diaphragm-type constant pressure deluge alarm valve, the auxiliary cleaning component includes an annular plate disposed on the side of the annular mounting base. Two guide rods are fixedly connected to the side wall of the annular plate, and both guide rods are slidably connected through the side wall of the annular mounting base. Two No. 1 springs are fixedly connected between the annular plate and the side wall of the annular mounting base. An annular knocking plate is fixedly connected to the side wall of the annular plate.

[0011] According to the above-mentioned diaphragm-type constant pressure deluge alarm valve, the convenient disassembly and assembly component includes a locking block fixedly connected to the circumferential side wall of the annular mounting base. The side wall of the annular mounting base has a groove, and the inner wall of the groove has a slot. An inclined limiting pin is provided in the slot. The inclined limiting pin is slidably connected to the side wall of the annular mounting base. A pull plate is fixedly connected to the top of the inclined limiting pin. A second spring is fixedly connected between the pull plate and the annular mounting base.

[0012] According to the above-mentioned diaphragm-type constant pressure rain alarm valve, the two springs No. 1 and No. 2 are respectively sleeved on the two guide rods and the inclined limit pin.

[0013] According to the above-mentioned diaphragm-type constant pressure rain alarm valve, the inner bottom surface of the groove and the inner bottom surface of the slot are located on the same plane, and the two engaging blocks engage with the two slots respectively.

[0014] According to the above-mentioned diaphragm-type constant pressure rain alarm valve, the two guide rods are respectively located on both sides of the annular knocking plate, and the two convenient disassembly and assembly components are symmetrical about the center of the annular fixing seat.

[0015] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0016] 1. This utility model, through its filter assembly, effectively filters the water entering the deluge alarm valve body. The filter screen blocks impurities in the water, preventing them from entering the valve body cavity and causing valve core blockage, sealing failure, and other malfunctions, thus ensuring the normal operation of the deluge alarm valve.

[0017] 2. This utility model, through the auxiliary cleaning component, can knock the filter screen with a ring-shaped tapping plate, shake off the impurities on the filter screen, avoid filter screen blockage, and improve the filtration efficiency and service life of the filter screen.

[0018] 3. This utility model, through its convenient assembly and disassembly components, enables quick assembly and disassembly between the annular mounting base and the annular fixed base. During installation, the engagement of the locking block and the slot, along with the limiting effect of the inclined limiting pin, securely fixes the annular mounting base. During disassembly, simply pulling the pull plate releases the limiting, allowing for convenient and quick removal of the annular mounting base. This facilitates maintenance operations such as cleaning and replacing the filter screen, reducing maintenance difficulty and costs, and improving maintenance efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the filtration mechanism of this utility model;

[0022] Figure 3 This is a three-dimensional sectional view of the filtration mechanism of this utility model;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0024] Reference numerals: 1. Shower alarm valve body; 2. Filter assembly; 21. Annular fixing seat; 22. Annular mounting seat; 23. Filter screen; 3. Auxiliary cleaning assembly; 31. Annular plate; 32. Guide rod; 33. Spring No. 1; 34. Annular knocking plate; 4. Easy disassembly and assembly assembly; 41. Locking block; 42. Groove; 43. Slot; 44. Angled limit pin; 45. Pull plate; 46. Spring No. 2. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The present invention will be further described below with reference to the embodiments.

[0027] Example: Refer to Figures 1 to 4 A diaphragm-type constant pressure deluge alarm valve, comprising a deluge alarm valve body 1;

[0028] The filter mechanism includes a filter assembly 2, an auxiliary cleaning assembly 3, and two easy-to-disassemble assemblies 4. The filter assembly 2 includes an annular fixing seat 21 fixedly connected to the inner wall of the rain alarm valve body 1. An annular mounting seat 22 is slidably connected to the inner wall of the annular fixing seat 21. A filter screen 23 is fixedly connected to the inner wall of the annular mounting seat 22.

[0029] The auxiliary cleaning component 3 includes an annular plate 31 located on the side of the annular mounting base 22. Two guide rods 32 are fixedly connected to the side wall of the annular plate 31. Both guide rods 32 are slidably connected to the side wall of the annular mounting base 22. Two No. 1 springs 33 are fixedly connected between the annular plate 31 and the side wall of the annular mounting base 22. An annular knocking plate 34 is fixedly connected to the side wall of the annular plate 31. The two guide rods 32 are located on both sides of the annular knocking plate 34.

[0030] The easy-to-assemble and disassemble component 4 includes a locking block 41 fixedly connected to the circumferential side wall of the annular mounting base 22. The side wall of the annular mounting base 21 has a groove 42, and the inner wall of the groove 42 has a slot 43. The slot 43 has an inclined limiting pin 44, which is slidably connected to the side wall of the annular mounting base 21. The top of the inclined limiting pin 44 is fixedly connected to a pull plate 45. A second spring 46 is fixedly connected between the pull plate 45 and the annular mounting base 21. The two first springs 33 and the second spring 46 are respectively sleeved on the two guide rods 32 and the inclined limiting pin 44. The inner bottom surface of the groove 42 and the inner bottom surface of the slot 43 are on the same plane. The two locking blocks 41 are respectively engaged with the two slots 43 to ensure that the annular mounting base 22 has good stability after installation. The two easy-to-assemble and disassemble components 4 are symmetrical about the center of the annular mounting base 21, which is more in line with the actual installation logic.

[0031] The working principle of this utility model is as follows: During installation, the two locking blocks 41 on the annular mounting base 22 are aligned with the two grooves 42 on the annular fixing base 21, and then the annular mounting base 22 is rotated along the inner wall of the annular fixing base 21, so that the locking blocks 41 slide into the slots 43 along the grooves 42. During the process of the locking blocks 41 entering the slots 43, the locking blocks 41 will press the inclined surface of the inclined limiting pin 44, so that the inclined limiting pin 44 moves upward and the second spring 46 is stretched. When the locking blocks 41 are fully inserted into the slots 43, the second spring 46 returns to its original state, driving the inclined limiting pin 44 to move downward. The lower end of the inclined limiting pin 44 is inserted into the slots 43 to limit the locking blocks 41, thereby firmly fixing the annular mounting base 22 on the annular fixing base 21 and completing the overall installation.

[0032] During use, when water flows into the deluge alarm valve body 1, it first passes through the filter screen 23. The filter screen 23 filters impurities in the water flow, blocking them from passing through and ensuring that the water flowing into the deluge alarm valve is clean. This prevents impurities from affecting the normal operation of the deluge alarm valve. When it is necessary to clean the filter screen 23, first disconnect the connection at the water inlet of the deluge alarm valve body 1. At this time, the filter screen 23 is exposed. Pull the annular plate 31 to drive the annular knocking plate 34 to move. After releasing, the stretched No. 1 spring 33 retracts and returns to its original shape under the action of elasticity. Pull the annular plate 31 to move it closer to the annular mounting base 22. The annular knocking plate 34 on the annular plate 31 will knock on the filter screen 23, shaking off the impurities attached to the filter screen 23 and preventing impurities from accumulating and clogging the filter screen 23. The cleaning effect can also be improved by the impact of water flow.

[0033] When the filter screen 23 needs to be replaced, pull the pull plate 45 on the two easy-to-remove components 4. The pull plate 45 drives the inclined limit pin 44 to move upward, so that the inclined limit pin 44 disengages from the limit of the locking block 41. At this time, rotate the annular mounting base 22 in the opposite direction so that the two locking blocks 41 return to the two grooves 42. The annular mounting base 22 can then be removed from the annular fixing base 21. After replacing the filter screen 23, the annular mounting base 22 can be reinstalled onto the annular fixing base 21 according to the above overall installation steps.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A diaphragm-type constant pressure deluge alarm valve, characterized in that, include: Rain alarm valve body (1); The filter mechanism includes a filter assembly (2), an auxiliary cleaning assembly (3), and two easy-to-disassemble assemblies (4). The filter assembly (2) includes an annular fixing seat (21) fixedly connected to the inner wall of the rain alarm valve body (1). An annular mounting seat (22) is slidably connected to the inner wall of the annular fixing seat (21). A filter screen (23) is fixedly connected to the inner wall of the annular mounting seat (22).

2. The diaphragm-type constant pressure deluge alarm valve according to claim 1, characterized in that, The auxiliary cleaning component (3) includes an annular plate (31) located on the side of the annular mounting base (22). Two guide rods (32) are fixedly connected to the side wall of the annular plate (31). Both guide rods (32) are slidably connected to the side wall of the annular mounting base (22). Two No. 1 springs (33) are fixedly connected between the annular plate (31) and the side wall of the annular mounting base (22). An annular knocking plate (34) is fixedly connected to the side wall of the annular plate (31).

3. The diaphragm-type constant pressure deluge alarm valve according to claim 2, characterized in that, The convenient assembly and disassembly component (4) includes a locking block (41) fixedly connected to the circumferential side wall of the annular mounting base (22). The side wall of the annular mounting base (21) is provided with a groove (42). The inner wall of the groove (42) is provided with a slot (43). The slot (43) is provided with an inclined limiting pin (44). The inclined limiting pin (44) is slidably connected to the side wall of the annular mounting base (21). The top end of the inclined limiting pin (44) is fixedly connected with a pull plate (45). A second spring (46) is fixedly connected between the pull plate (45) and the annular mounting base (21).

4. A diaphragm-type constant pressure deluge alarm valve according to claim 3, characterized in that, The two springs, No. 1 (33) and No. 2 (46), are respectively sleeved on the two guide rods (32) and the inclined limiting pin (44).

5. A diaphragm-type constant pressure deluge alarm valve according to claim 3, characterized in that, The inner bottom surface of the groove (42) and the inner bottom surface of the slot (43) are on the same plane, and the two engaging blocks (41) engage with the two slots (43) respectively.

6. A diaphragm-type constant pressure deluge alarm valve according to claim 2, characterized in that, The two guide rods (32) are located on both sides of the annular tapping plate (34), and the two easy-to-assemble and disassemble components (4) are symmetrical about the center of the annular fixing seat (21).

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