Wet alarm valve for fire safety

Abstract

The utility model discloses a wet-type alarm valve for fire safety, which comprises an alarm valve body and an alarm pipeline, a pipeline connecting seat is integrally formed on one side of the alarm valve body, and the wet-type alarm valve further comprises an intercepting and filtering mechanism which is arranged between the pipeline connecting seat of the alarm valve body and the alarm pipeline. A middle seat of the intercepting and filtering mechanism forms a reliable filtering system between a pipeline connecting seat of the alarm valve body and an alarm pipeline, a filtering pipe in the middle seat is of a primary filtering and secondary filtering structure composed of a vertical filtering groove and a hole filtering window, impurities in water can be effectively intercepted, and the scale forming amount is reduced; and compared with the tedious cleaning mode that a large number of pipeline assemblies need to be disassembled for an existing alarm pipeline filter screen, the filter pipe of the intercepting and filtering mechanism is extremely easy and convenient to clean, the filter pipe can be taken out to be cleaned only by closing a water source control valve and screwing down a bottom rotary sleeve, and the maintenance difficulty and time cost are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wet type alarm valve technical field, especially a kind of wet type alarm valve for fire safety. BACKGROUND

[0002] Wet type alarm valve is a kind of key assembly for wet type automatic sprinkler system, the valve clapper of wet type alarm valve separates water supply side and system side, when system is in quasi-working state, valve clapper is in closed state under the action of self-weight and water supply pressure, make system side full of pressure water, when fire occurs, nozzle opens water, system side water pressure drops, water supply side pressure is greater than system side pressure, valve clapper is opened, water flows from water supply side to system side, and part of water flows to delay device and pressure switch etc.

[0003] The wet type alarm valve of prior art in daily use alarm process, water flows to delay device from alarm pipeline, after delay, water is conducted to pressure switch and hydraulic alarm bell for alarm, but if alarm pipeline place is blocked by scale, the pressure switch and hydraulic alarm bell above delay device cannot work normally, although some alarm pipeline places are provided with filter screen structure, these filter screens are often installed in the pipeline close to valve body, the filter retaining structure of this filter screen is relatively simple, and its cleaning operation is relatively cumbersome to disassemble more pipeline structure components, therefore, we propose a kind of wet type alarm valve for fire safety. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a kind of wet type alarm valve for fire safety, by being provided with intercepting filter mechanism between the pipeline socket of alarm valve body and alarm pipeline, the middle seat of intercepting filter mechanism forms reliable filter system between the pipeline socket of alarm valve body and alarm pipeline, the filter pipe in middle seat adopts primary filtration and complex filtration structure composed of vertical filter groove and hole filter window, can effectively intercept impurities in water, reduce scale formation amount, ensure that alarm pipeline is unobstructed, avoid that delay device water supply pressure is insufficient due to impurities blockage, guarantee that pressure switch and hydraulic alarm bell work stably, significantly improve the reliability and effectiveness of alarm system, and compared with the cumbersome cleaning mode that a large number of pipeline components need to be disassembled in the filter screen of existing alarm pipeline, filter pipe cleaning operation of intercepting filter mechanism is extremely simple, only need to close water source control valve, unscrew bottom swivel sleeve, can take out filter pipe and clean, greatly reduce maintenance difficulty and time cost, can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a kind of wet alarm valve for fire safety, including alarm valve body and alarm pipeline, the valve body of the alarm valve body is integrally formed with pipeline connector on one side, further including interception mechanism, the interception mechanism includes into spin pipe, middle seat, spin pipe, bottom spin pipe, bottom spin sleeve, filter pipe and spin bolt, the into spin pipe is screwed in the pipeline connector, and the outer tube of into spin pipe is interconnected by middle seat and is welded with spin pipe, the pipe body of spin pipe is interconnected with the three-way pipe body of alarm pipeline, the bottom of middle seat is interconnected and is welded with bottom spin pipe, and bottom spin sleeve is screwed on the outer side of bottom spin pipe, the sleeve body of bottom spin sleeve is clamped with filter pipe, and filter pipe is inserted into the cylindrical seat cavity of middle seat along bottom spin pipe upwards, the two side cylinder walls of filter pipe towards into spin pipe and spin pipe are respectively provided with vertical filter groove and hole filter window, the seat body top of middle seat is provided with vertical spin hole, and the vertical spin hole of middle seat is downwardly inserted into the upper cylinder port of filter pipe with spin bolt.

[0007] Further, the plug of the spin bolt is pressed with a sealing ring between the middle seat, and the plug head of the bottom plug body of the spin bolt is clamped into the upper cylinder port of the filter pipe;

[0008] By adopting the above technical scheme, the spin bolt is sleeved with a sealing ring on the outer side and can be screwed into the vertical spin hole of the middle seat. After the plug head of the spin bolt is clamped into the filter pipe, the spin bolt can press the sealing ring to contact the top end of the middle seat for sealing.

[0009] Further, the sleeve opening of the bottom spin sleeve is fixedly bonded with a sealing ring, and the sealing ring is sleeved on the outside of the bottom spin pipe;

[0010] By adopting the above technical scheme, when the bottom spin sleeve is screwed with the bottom spin pipe, the sealing ring can be sleeved on the outside of the bottom spin pipe for contact sealing.

[0011] Further, three clamping claws are spot-welded in the sleeve cavity of the bottom spin sleeve, and the clamping claws are inserted into the three-claw grooves opened at the bottom of the filter pipe upwards;

[0012] By adopting the above technical scheme, the three sets of claw bodies of the clamping claws of the bottom spin sleeve can be positioned and clamped with the three-claw grooves of the filter pipe, facilitating the connection of the bottom spin sleeve and the filter pipe.

[0013] Further, rubber pairs are symmetrically bonded on the pipe wall of the filter pipe away from the vertical filter groove and the hole filter window, and the rubber pairs are pressed against the inner seat wall of the middle seat;

[0014] By adopting the above technical scheme, the rubber pairs on the outer side of the filter pipe are used to contact the inner seat wall of the middle seat for sealing, ensuring that the water at the middle seat can only pass through the filter pipe for filtering and then enter the alarm pipeline.

[0015] Further, the size of the groove cavity of the vertical filter groove is greater than the size of the filter hole of the hole filter window;

[0016] Through adoption of the above technical scheme, the vertical filter groove and the hole filter window can constitute a primary filter and a complex filter structure, and the filtering effect at the filter pipe is improved.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] The utility model discloses a filter mechanism is arranged between the pipeline joint base and the alarm pipeline of the alarm valve body, and the middle seat of the filter mechanism forms a reliable filter system between the pipeline joint base and the alarm pipeline of the alarm valve body, the filter pipe in the middle seat adopts the primary filter and the complex filter structure formed by the vertical filter groove and the hole filter window, can effectively intercept the impurity in water, reduces the scale formation amount, ensures that the alarm pipeline is unobstructed, avoids the delay caused by the impurity blockage and reduces the water supply pressure of the delay device, guarantees the stable work of the pressure switch and the hydraulic alarm bell, and the reliability and effectiveness of the alarm system are improved obviously.

[0019] Compared with the prior art, the utility model has the advantages of: BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of a kind of wet alarm valve for fire safety of the utility model.

[0021] Figure 2 It is the split schematic drawing of the filter mechanism and pipeline joint base and alarm pipeline of a kind of wet alarm valve for fire safety of the utility model.

[0022] Figure 3 It is the explosion view of the filter mechanism of a kind of wet alarm valve for fire safety of the utility model.

[0023] Figure 4 It is the cutaway view of the inlet pipe, middle seat, discharge pipe and bottom pipe of a kind of wet alarm valve for fire safety of the utility model.

[0024] Figure 5 It is the split schematic drawing of the filter pipe and bottom sleeve of a kind of wet alarm valve for fire safety of the utility model.

[0025] In the drawing: 1, alarm valve body;2, pipeline joint base;3, alarm pipeline;4, filter mechanism;5, inlet pipe;6, middle seat;7, discharge pipe;8, bottom pipe;9, bottom sleeve;10, sealing ring;11, filter pipe;12, vertical filter groove;13, hole filter window;14, rubber pair piece;15, rotation branch bolt;16, sealing ring;17, three-jaw groove;18, clamping jaw. DETAILED DESCRIPTION

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figures 1-5 As shown, a wet alarm valve for fire safety includes an alarm valve body 1 and an alarm pipeline 3. The valve body 1 has a pipeline connector 2 integrally formed on one side. It also includes a filter interception mechanism 4, which comprises an inlet swirl pipe 5, a middle seat 6, an outlet swirl pipe 7, a bottom swirl pipe 8, a bottom swirl sleeve 9, a filter pipe 11, and a swirl branch bolt 15. The inlet swirl pipe 5 is screwed into the pipeline connector 2, and the outer port of the inlet swirl pipe 5 is interconnected with the outlet swirl pipe 7 welded to it via the middle seat 6. The body of the outlet swirl pipe 7 is connected to the tee body of the alarm pipeline 3. The base of the middle seat 6 is welded with a bottom spiral tube 8, and a bottom spiral sleeve 9 is screwed onto the outside of the bottom spiral tube 8. A filter tube 11 is fitted inside the sleeve of the bottom spiral sleeve 9, and the filter tube 11 is inserted into the cylindrical seat cavity of the middle seat 6 along the bottom spiral tube 8. Vertical filter grooves 12 and perforated filter windows 13 are respectively opened on the two cylindrical walls of the filter tube 11 facing the inlet spiral tube 5 and the outlet spiral tube 7. A vertical spiral hole is opened at the top of the seat body of the middle seat 6, and a spiral support bolt 15 is screwed downward into the upper cylinder opening of the filter tube 11 at the vertical spiral hole of the middle seat 6.

[0028] Among them, a sealing ring 16 is pressed between the bolt block of the swivel bolt 15 and the middle seat 6, and the bolt head of the bottom bolt body of the swivel bolt 15 is inserted into the upper cylinder opening of the filter tube 11.

[0029] By adopting the above technical solution, after the sealing ring 16 is sleeved on the outside of the swivel bolt 15, it can be screwed into the vertical swivel hole of the middle seat 6. After the bolt head of the swivel bolt 15 is inserted into the filter tube 11, the swivel bolt 15 can press the sealing ring 16 to contact the top of the middle seat 6 for sealing.

[0030] Among them, a sealing ring 10 is glued and fixed at the opening of the bottom spiral sleeve 9, and the sealing ring 10 is clamped on the outside of the bottom spiral tube 8;

[0031] By adopting the above technical solution, when the bottom swivel sleeve 9 is screwed into the bottom swivel tube 8, the sealing ring 10 can be fitted over the bottom swivel tube 8 for contact sealing.

[0032] The bottom sleeve 9 has three claws 18 welded inside the sleeve cavity, and the claws 18 are inserted upward into the three-claw groove 17 opened at the bottom of the filter tube 11.

[0033] By adopting the above technical solution, the bottom screw sleeve 9 can be positioned and locked in place by the three sets of claws of the claw 18 and the three claw grooves 17 of the filter tube 11, which facilitates the connection between the bottom screw sleeve 9 and the filter tube 11.

[0034] The rubber pair piece 14 is symmetrically bonded to the pipe wall of the filter pipe 11 away from the vertical filter groove 12 and the hole filter window 13, and is pressed against the inner seat wall of the middle seat 6;

[0035] By adopting the above technical scheme, the rubber pair piece 14 on the outer side of the filter pipe 11 contacts the inner seat wall of the middle seat 6 to seal, so that the water at the middle seat 6 can only enter the alarm pipeline 3 after being filtered by the filter pipe 11.

[0036] The size of the groove cavity of the vertical filter groove 12 is greater than the size of the filter hole of the hole filter window 13.

[0037] By adopting the above technical scheme, the vertical filter groove 12 and the hole filter window 13 can constitute a primary filter and a secondary filter structure, and the filtering effect at the filter pipe 11 is improved.

[0038] It should be noted that the utility model is a kind of wet type alarm valve for fire safety, and the filter mechanism 4 is arranged between the pipeline connection seat 2 of alarm valve body 1 and the tee pipe body of alarm pipeline 3, after the filter pipe 11 of filter mechanism 4 is positioned by being clamped at the clamping jaw 18 in the bottom rotating sleeve 9 of the bottom rotating pipe 8 below the middle seat 6, the filter pipe 11 can be inserted into the cylindrical seat cavity upwards, then the bottom rotating sleeve 9 below the filter pipe 11 can be connected by being screwed on the outside of the bottom rotating pipe 8, the sealing ring 10 can be contacted and sealed by being sleeved on the outside of the bottom rotating pipe 8 when the bottom rotating sleeve 9 is screwed on the bottom rotating pipe 8, then the sealing ring 16 is sleeved on the outside of the rotating bolt 15, the rotating bolt 15 is screwed into the vertical rotating hole of the middle seat 6, after the bolt head of the rotating bolt 15 is clamped into the filter pipe 11, the rotating bolt 15 can be sealed by being contacted with the top end of the middle seat 6 by pressing the sealing ring 16, then the inlet rotating pipe 5 of the middle seat 6 can be connected by being wound with raw material belt and being screwed into the pipeline connection seat 2, at the same time, the exhaust rotating pipe 7 at the middle seat 6 can be connected by being wound with raw material belt and being screwed with the tee pipe of alarm pipeline 3, then other pipeline components of alarm pipeline 3 can be connected by being wound with raw material belt and being screwed at the tee pipe, and the filter mechanism 4 is completed assembly at this time.

[0039] When the system side water pressure of the alarm valve body 1 is reduced, the water on the water supply side can rush into the valve, and then the water can enter the alarm pipeline 3 at the delay device, the water hammer alarm and the pressure switch and the like provided with pressure water from the inlet spiral pipe 5, the middle seat 6 and the discharge spiral pipe 7, so that the water hammer alarm and the pressure switch at the alarm pipeline 3 can work normally. When the water enters the alarm pipeline 3, the water can be initially filtered through the vertical filter groove 12 of the filter pipe 11, and then re-filtered through the hole filter window 13, so that the water hammer alarm and the pressure switch at the alarm pipeline 3 are not easy to produce scale influence problem. When the filter structure of the alarm pipeline 3 needs to be cleaned regularly, the water source control valve of the alarm valve body 1 can be closed to cut off the water source, a wrench is clamped at the hexagonal bottom block of the bottom rotating sleeve 9 to rotate downward, so that the bottom rotating sleeve 9 is rotated away from the bottom rotating pipe 8, then the filter pipe 11 can descend and leave the bottom rotating pipe 8 together with the bottom rotating sleeve 9, at this time, an ultrasonic cleaning machine or other manual cleaning method can be used to clean the vertical filter groove 12 and the hole filter window 13 of the filter pipe 11. The cleaning method of the existing filter structure is not limited too much here, and the filter pipe 11 after cleaning can be reassembled into the middle seat 6 according to the above steps for filtering use.

[0040] It should be noted that the utility model is a wet type alarm valve for fire safety, and the components in the utility model are components known by those skilled in the art, and the structure and principle thereof can be known by those skilled in the art through a technical manual or through a conventional experimental method.

[0041] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A wet alarm valve for fire safety, comprising an alarm valve body (1) and an alarm pipeline (3), a pipeline connector (2) is integrally formed on one side of the valve body (1), characterized in that: Also include a filter mechanism (4), the filter mechanism (4) includes into the pipe (5), the middle seat (6), the exhaust pipe (7), the bottom pipe (8), the bottom rotation sleeve (9), the filter pipe (11) and the rotation branch bolt (15), the pipe seat (2) into the pipe (5) is screwed, and the outer pipe of the pipe (5) is communicated by the middle seat (6) and the exhaust pipe (7) is welded, the pipe body of the exhaust pipe (7) is screwed with the three-way pipe body of the alarm pipeline (3) and is communicated, the bottom seat of the middle seat (6) is communicated and welded with the bottom pipe (8), and the bottom pipe (8) is screwed with the bottom rotation sleeve (9) outside, the sleeve body of the bottom rotation sleeve (9) is clamped with the filter pipe (11), and the filter pipe (11) is inserted into the cylindrical seat cavity of the middle seat (6) along the bottom pipe (8), the filter pipe (11) is respectively provided with vertical filter groove (12) and hole filter window (13) at the two side cylinder walls of the inlet pipe (5) and the exhaust pipe (7), the seat body top of the middle seat (6) is provided with a vertical rotation hole, and the vertical rotation hole of the middle seat (6) is downwardly inserted into the upper cylinder port of the filter pipe (11).

2. A wet alarm valve for fire safety according to claim 1, characterized in that: The plug between the plug of the rotation branch bolt (15) and the middle seat (6) is pressed and connected with the sealing ring (16), and the plug head of the bottom plug body of the rotation branch bolt (15) is clamped into the upper cylinder port of the filter pipe (11).

3. A wet alarm valve for fire safety according to claim 1, characterized in that: The sleeve port of the bottom rotation sleeve (9) is fixedly bonded with the sealing ring (10), and the sealing ring (10) is clamped on the outside of the bottom pipe (8).

4. A wet alarm valve for fire safety according to claim 1, characterized in that: The sleeve cavity of the bottom rotation sleeve (9) is three-point welded with the clamping jaw (18), and the clamping jaw (18) is inserted into the three-jaw groove (17) opened at the bottom of the filter pipe (11).

5. A wet alarm valve for fire safety according to claim 1, characterized in that: The pipe wall of the filter pipe (11) is symmetrically bonded with rubber pieces (14) away from the vertical filter groove (12) and the hole filter window (13), and the rubber pieces (14) are pressed against the inner seat wall of the middle seat (6).

6. A wet alarm valve for fire safety according to claim 1, characterized in that: The size of the groove cavity of the vertical filter groove (12) is greater than the size of the filter hole of the hole filter window (13).

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