Improved passive automatic fire-fighting spray valve

Abstract

The utility model discloses an improved passive automatic fire-fighting spray valve, and relates to the technical field of fire-fighting automatic control equipment, the improved passive automatic fire-fighting spray valve comprises a fixed seat, the inner cavity of the fixed seat is fixedly connected with a valve, the lower surface of the valve is fixedly connected with a water outlet assembly, and the outer wall of the water outlet assembly is movably sleeved with an installation protection assembly. According to the improved passive automatic fire-fighting spray valve, the inner wall of the fixing shell can be fixedly installed on the outer wall of the annular installation plate by rotating the fixing shell, the sealing protection shell is connected with the water outlet in a sealing mode under the action of the first sealing ring and the second sealing ring, and therefore installation, disassembly and maintenance can be facilitated; and meanwhile, under the action of a second sealing ring and a first sealing ring, the fixing shell and the sealing protection shell can be sealed with the water outlet after being installed and fixed, so that water leakage is prevented, and under the action of a fixing ball and a rubber sleeve plug, the sealing column and the water outlet can be further sealed, so that the sealing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of automatic fire control equipment technology, and in particular to an improved passive automatic fire sprinkler valve. Background Technology

[0002] Existing fire protection systems typically involve installing smoke ionization sensors and glass-bubble sprinkler heads in rooms, limiting their application to higher-end buildings such as hotels, restaurants, and office buildings. When the indoor temperature rises rapidly, the organic solvent inside the glass-bubble sprinkler head evaporates, causing the glass bulb to rupture. Firefighting water connected to the bulb then sprays down, thus suppressing the spread of fire.

[0003] Chinese patent document CN106439195B discloses an improved passive automatic fire sprinkler valve, comprising a valve body, a valve core, and a passive power module. The valve body and valve core are integrally formed. The passive power module includes a piston diaphragm, a piston rod, a mounting bracket, a magnetic monopole, a protective cover, a pull rod, and a shape memory alloy spring. When the shape memory alloy spring senses a change in ambient temperature reaching a certain value, the spring extends, driving the magnetic monopole to move. Under the action of magnetic force, the piston rod moves, and the up-and-down movement of the piston rod blocks or releases the pressure relief hole of the piston diaphragm. Under the action of water pressure, the piston diaphragm is controlled, thereby controlling whether water can flow through the valve core. The advantages of this invention are: the improved sprinkler valve has a simple structure and is easy to process and assemble; secondly, because the shape memory alloy spring directly senses the ambient temperature, its response speed is more sensitive, thus enabling the sprinkler valve to open and close promptly according to fire-fighting needs, avoiding delays.

[0004] The existing technology has the following problems:

[0005] The improved passive automatic fire sprinkler valve is inconvenient to install and fix, and cannot guarantee a sealing effect after installation, making it prone to leakage. Furthermore, the improved passive automatic fire sprinkler valve cannot protect the temperature sensing components during use, making them susceptible to corrosion and thus affecting its service life. Utility Model Content

[0006] This utility model provides an improved passive automatic fire sprinkler valve to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] An improved passive automatic fire sprinkler valve includes a fixed base, a valve fixedly connected to the inner cavity of the fixed base, a water outlet assembly fixedly connected to the lower surface of the valve, a protective mounting assembly movably sleeved on the outer wall of the water outlet assembly, the upper part of the protective mounting assembly movably sleeved with the inner wall of the fixed base, and an annular mounting plate threadedly connected to the inner wall of the lower part of the protective mounting assembly, the upper surface of the annular mounting plate being fixedly connected to the lower surface of the fixed base.

[0009] Preferably, the installation protection assembly includes a fixed shell, the inner wall of the upper part of the fixed shell is threadedly connected to the outer wall of the annular mounting plate, a sealing protective shell is fixedly connected to the inner wall of the lower part of the fixed shell, the outer wall of the sealing protective shell is movably sleeved with the inner wall of the annular mounting plate, and a sealing shell is fixedly connected to the lower surface of the sealing protective shell and the sealing shell is located below the fixed shell.

[0010] Preferably, a temperature sensing component is fixedly installed in the inner cavity of the central part of the sealed protective shell, a pull plate is fixedly connected to the upper surface of the temperature sensing component, a sealing column is fixedly connected to the upper surface of the pull plate, the outer wall of the sealing column is movably sleeved with the inner wall of the water outlet, an annular sealing plate is fixedly connected to the outer wall of the pull plate, and a sealing ring is fixedly connected to the lower surface of the annular sealing plate.

[0011] Preferably, the water outlet assembly includes a water outlet, the upper surface of which is fixedly connected to the lower surface of the valve, a fixing rod is movably sleeved on the inner wall of the water outlet, the upper surface of which is fixedly connected to the lower surface of the valve, a fixing ball is fixedly connected to the lower surface of the fixing rod, a rubber plug is fixedly connected to the outer wall of the fixing ball, and the outer wall of the rubber plug is engaged with a sealing column.

[0012] Preferably, the inner wall of the annular sealing plate is movably sleeved with the outer wall of the central part of the sealing protective shell, and the lower surface of the sealing protective shell is provided with a plurality of drainage holes, and the plurality of drainage holes are located on the outer side of the annular sealing plate.

[0013] Preferably, a sealing ring is fixedly connected to the upper surface of the sealing protective shell, and the upper surface of the sealing ring overlaps with the lower surface of the valve.

[0014] Preferably, a second sealing ring is fixedly connected to the bottom of the inner wall of the upper part of the sealing protective shell, the inner wall of the second sealing ring is movably sleeved with the outer wall of the water outlet, and the upper surface of the second sealing ring overlaps with the lower surface of the upper part of the water outlet.

[0015] Preferably, a sealing shell is fixedly connected to the lower surface of the sealing protective shell, the inner wall of the sealing shell is movably sleeved with the outer wall of the lower part of the temperature sensing component, and a guide plate is fixedly connected to the outer wall of the sealing shell, with the guide plate located directly below several drainage holes.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] This utility model provides an improved passive automatic fire sprinkler valve. By rotating the fixed shell, the inner wall of the fixed shell can be fixedly installed with the outer wall of the annular mounting plate. The sealing protective shell is sealed to the water outlet under the action of sealing ring one and sealing ring two, which facilitates installation, disassembly and maintenance. At the same time, through the action of sealing ring two and sealing ring one, the fixed shell and sealing protective shell can seal the water outlet after installation and fixation, thereby preventing water leakage. Furthermore, under the action of the fixed ball and rubber plug, the sealing column and the water outlet can be further sealed, thereby improving the sealing effect.

[0018] This utility model provides an improved passive automatic fire sprinkler valve. Through the action of a memory alloy spring inside the temperature sensing component, a magnetic monopole drives the piston column, causing the pull plate to move the sealing column downwards. At this time, the holes on the outer wall of the sealing column can move down into the inner cavity of the central part of the sealing protective shell, and the inner wall of the upper part of the sealing column can also separate from the outer wall of the rubber sleeve, allowing water to flow downwards into the inner cavity of the sealing protective shell. The annular sealing plate and sealing ring ensure that the water flows out through several drain holes, thus ensuring that the temperature sensing component is in a sealed state and improving its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a cross-sectional view of the water outlet component of this utility model.

[0023] Figure 5 This is a cross-sectional view of the protective assembly installed in this utility model.

[0024] Figure 6 This is a schematic diagram of the bottom structure of the sealing and protective shell of this utility model.

[0025] In the diagram: 1. Fixed base; 2. Valve; 3. Water outlet assembly; 4. Annular mounting plate; 5. Installation protection assembly; 31. Water outlet; 32. Fixed rod; 33. Fixed ball; 34. Rubber plug; 51. Fixed shell; 52. Sealing protection shell; 53. Sealing ring one; 54. Sealing ring two; 55. Sealing shell; 56. Guide plate; 57. Drain hole; 58. Temperature sensing assembly; 59. Pull plate; 510. Sealing column; 511. Annular sealing plate; 512. Sealing ring three. Detailed Implementation

[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 Figure 1 , Figure 2 As shown, an improved passive automatic fire sprinkler valve includes a fixed base 1, a valve 2 fixedly connected to the inner cavity of the fixed base 1, a water outlet assembly 3 fixedly connected to the lower surface of the valve 2, a protective mounting assembly 5 movably sleeved on the outer wall of the water outlet assembly 3, the upper part of the outer wall of the protective mounting assembly 5 movably sleeved with the inner wall of the fixed base 1, and an annular mounting plate 4 threadedly connected to the inner wall of the lower part of the protective mounting assembly 5, the upper surface of the annular mounting plate 4 being fixedly connected to the lower surface of the fixed base 1.

[0028] First, under the action of the annular mounting plate 4, the mounting protective component 5 can be fixedly installed on the lower surface of the fixed base 1. At this time, the inner wall of the upper part of the mounting protective component 5 can be movably connected with the outer wall of the water outlet component 3. Then, under the action of the internal temperature sensing component of the mounting protective component 5, the water flow can enter the interior of the mounting protective component 5 through the water outlet component 3, and then be sprayed out under the action of the mounting protective component 5, thereby performing automatic spraying.

[0029] like Figure 4 As shown, the installation protective assembly 5 includes a fixed shell 51. The inner wall of the upper part of the fixed shell 51 is threadedly connected to the outer wall of the annular mounting plate 4. A sealing protective shell 52 is fixedly connected to the inner wall of the lower part of the fixed shell 51. The outer wall of the sealing protective shell 52 is movably sleeved with the inner wall of the annular mounting plate 4. A sealing shell 55 is fixedly connected to the lower surface of the sealing protective shell 52 and the sealing shell 55 is located below the fixed shell 51.

[0030] By rotating the fixed shell 51, the inner wall of the fixed shell 51 can be fixedly installed with the outer wall of the annular mounting plate 4. The sealing protective shell 52 is sealed to the outlet 31 under the action of sealing ring 1 53 and sealing ring 2 54, which facilitates installation, disassembly and maintenance.

[0031] The water outlet assembly 3 includes a water outlet 31. The upper surface of the water outlet 31 is fixedly connected to the lower surface of the valve 2. A fixing rod 32 is movably sleeved on the inner wall of the water outlet 31. The upper surface of the fixing rod 32 is fixedly connected to the lower surface of the valve 2. A fixing ball 33 is fixedly connected to the lower surface of the fixing rod 32. A rubber plug 34 is fixedly connected to the outer wall of the fixing ball 33. The outer wall of the rubber plug 34 is engaged with the sealing column 510.

[0032] The fixed ball 33 and the rubber plug 34 work together to further seal the sealing column 510 and the outlet 31, thereby improving the sealing effect.

[0033] like Figure 3 , Figure 5 As shown, a temperature sensing component 58 is fixedly installed in the inner cavity of the central part of the sealed protective shell 52. A pull plate 59 is fixedly connected to the upper surface of the temperature sensing component 58. A sealing column 510 is fixedly connected to the upper surface of the pull plate 59. The outer wall of the sealing column 510 is movably sleeved with the inner wall of the outlet 31. An annular sealing plate 511 is fixedly connected to the outer wall of the pull plate 59. A sealing ring 512 is fixedly connected to the lower surface of the annular sealing plate 511. The inner wall of the annular sealing plate 511 is movably sleeved with the outer wall of the central part of the sealed protective shell 52. Several drainage holes 57 are opened on the lower surface of the sealed protective shell 52 and the several drainage holes 57 are located on the outside of the annular sealing plate 511.

[0034] The shape memory alloy spring inside the temperature sensing component 58 causes the magnetic monopole to drive the piston column, which in turn causes the pull plate 59 to move the sealing column 510 downward. At this time, the hole on the outer wall of the sealing column 510 can move down into the inner cavity of the middle part of the sealing protective shell 52, and the inner wall of the upper part of the sealing column 510 can also separate from the outer wall of the rubber sleeve 34, so that the water can flow downward into the inner cavity of the sealing protective shell 52. The water can be discharged through several drain holes 57 by the action of the annular sealing plate 511 and the sealing ring 512, thereby ensuring that the temperature sensing component 58 is in a sealed state and thus improving its service life.

[0035] like Figure 6 As shown, a sealing shell 55 is fixedly connected to the lower surface of the sealing protective shell 52. The inner wall of the sealing shell 55 is movably sleeved with the outer wall of the lower part of the temperature sensing component 58. A guide plate 56 is fixedly connected to the outer wall of the sealing shell 55, and the guide plate 56 is located directly below several drainage holes 57.

[0036] A sealing ring 53 is fixedly connected to the upper surface of the sealing protective shell 52, and the upper surface of the sealing ring 53 overlaps with the lower surface of the valve 2; a sealing ring 54 is fixedly connected to the bottom of the inner wall of the upper part of the sealing protective shell 52, and the inner wall of the sealing ring 54 is movably connected to the outer wall of the outlet 31, and the upper surface of the sealing ring 54 overlaps with the lower surface of the upper part of the outlet 31.

[0037] Through the action of sealing ring 2 54 and sealing ring 1 53, the fixed shell 51 and the sealing protective shell 52 can be sealed with the water outlet 31 after installation and fixation, thereby preventing water leakage.

[0038] The baffle plate 56 allows the water flow to spread outwards, facilitating large-scale fire suppression.

[0039] The working principle of this utility model is as follows: First, by rotating the fixed shell 51, the inner wall of the fixed shell 51 can be fixedly installed with the outer wall of the annular mounting plate 4. The sealing protective shell 52 is sealed to the water outlet 31 under the action of the sealing ring 1 53 and the sealing ring 2 54. When a fire occurs, the magnetic monopole drives the piston column to move through the action of the memory alloy spring inside the temperature sensing component 58, so that the pull plate 59 can drive the sealing column 510 to move downward. At this time, the hole opened on the outer wall of the sealing column 510 can move down into the inner cavity of the middle part of the sealing protective shell 52, and the inner wall of the upper part of the sealing column 510 can also separate from the outer wall of the rubber sleeve 34, so that the water can flow downward into the inner cavity of the sealing protective shell 52. The water can be discharged through several drain holes 57 through the action of the annular sealing plate 511 and the sealing ring 3 512, thereby performing automatic spraying.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An improved passive automatic fire sprinkler valve comprising a fixed seat (1), characterized in that: The inner cavity of the fixed seat (1) is fixedly connected with a valve (2), the lower surface of the valve (2) is fixedly connected with a water outlet assembly (3), the outer wall of the water outlet assembly (3) is movably sleeved with a mounting protection assembly (5), the outer wall of the upper part of the mounting protection assembly (5) is movably sleeved with the inner wall of the fixed seat (1), the inner wall of the lower part of the mounting protection assembly (5) is screwedly connected with an annular mounting plate (4), and the upper surface of the annular mounting plate (4) is fixedly connected with the lower surface of the fixed seat (1). The mounting protection assembly (5) comprises a fixed shell (51), the inner wall of the upper part of the fixed shell (51) is screwedly connected with the outer wall of the annular mounting plate (4), the inner wall of the lower part of the fixed shell (51) is fixedly connected with a sealing protection shell (52), the outer wall of the sealing protection shell (52) is movably sleeved with the inner wall of the annular mounting plate (4), and the lower surface of the sealing protection shell (52) is fixedly connected with a sealing shell (55) and the sealing shell (55) is located below the fixed shell (51). The inner cavity of the central part of the sealing protection shell (52) is fixedly installed with a temperature sensing assembly (58), the upper surface of the temperature sensing assembly (58) is fixedly connected with a pull plate (59), the upper surface of the pull plate (59) is fixedly connected with a sealing column (510), the outer wall of the sealing column (510) is movably sleeved with the inner wall of the water outlet (31), the outer wall of the pull plate (59) is fixedly connected with an annular sealing plate (511), and the lower surface of the annular sealing plate (511) is fixedly connected with a sealing ring three (512).

2. An improved passive automatic fire sprinkler valve according to claim 1, wherein: The water outlet assembly (3) comprises a water outlet (31), the upper surface of the water outlet (31) is fixedly connected with the lower surface of the valve (2), the inner wall of the water outlet (31) is movably sleeved with a fixed rod (32), the upper surface of the fixed rod (32) is fixedly connected with the lower surface of the valve (2), the lower surface of the fixed rod (32) is fixedly connected with a fixed ball (33), the outer wall of the fixed ball (33) is fixedly connected with a rubber sleeve plug (34), and the outer wall of the rubber sleeve plug (34) is clamped with the sealing column (510).

3. An improved passive automatic fire sprinkler valve according to claim 1, wherein: The inner wall of the annular sealing plate (511) is movably sleeved with the outer wall of the central part of the sealing protection shell (52), and a plurality of drainage holes (57) are formed in the lower surface of the sealing protection shell (52) and located outside the annular sealing plate (511).

4. An improved passive automatic fire sprinkler valve according to claim 3, wherein: The upper surface of the sealing protection shell (52) is fixedly connected with a sealing ring one (53), and the upper surface of the sealing ring one (53) is overlapped with the lower surface of the valve (2).

5. An improved passive automatic fire sprinkler valve according to claim 4, wherein: The inner wall of the sealing ring two (54) is movably sleeved with the outer wall of the water outlet (31), and the upper surface of the sealing ring two (54) is overlapped with the lower surface of the upper part of the water outlet (31).

6. An improved passive automatic fire sprinkler valve according to claim 5, wherein: The lower surface of the sealing protection shell (52) is fixedly connected with a sealing shell (55), the inner wall of the sealing shell (55) is movably sleeved with the outer wall of the lower part of the temperature sensing assembly (58), and the outer wall of the sealing shell (55) is fixedly connected with a flow guide plate (56) and the flow guide plate (56) is located directly below a plurality of drain holes (57).

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