One-way sealing valve

Abstract

The utility model discloses a one-way sealing valve which comprises a valve body and a valve clack. A fluid channel is arranged in the valve body, one end of the fluid channel is an input end, the other end of the fluid channel is an output end, and an outlet is formed in the end of the valve body. The valve clack is rotatably arranged in the valve body and has an open state and a closed state; in the opening state, the valve clack does not make contact with the output end, so that the input end communicates with the outlet through the output end; in the closed state, the valve clack abuts against the output end, so that the input end is not communicated with the outlet. The valve body and the valve clack are arranged, the fluid channel is arranged in the valve body, the valve clack is rotatably arranged in the valve body, and when reverse airflow flows in, gas drives the valve clack to abut against the output end of the fluid channel, so that the gas is prevented from flowing into the hot aerosol fire extinguishing device, and the one-way non-return effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a one-way sealing valve. Background Art

[0002] A valve is usually provided on the hot aerosol fire extinguishing device, and when a fire occurs, the valve is opened to extinguish the fire. For example, the Chinese patent document with application number 201610622950.7 discloses a temperature-controlled hot aerosol automatic fire extinguishing device. When a fire occurs, if the fire temperature reaches the nominal operating temperature of the temperature-sensitive glass ball in the temperature-controlled switch component, the temperature-sensitive glass ball automatically breaks, and the spray valve on the temperature-controlled switch component automatically opens first. At this time, the temperature-controlled switch component is connected, and the electric start component is started under the action of the external power supply, igniting the aerosol agent to generate hot aerosol gas. After the hot aerosol gas is cooled by the coolant, it is sprayed out by the valve on the temperature-controlled switch component, thereby achieving the purpose of automatic fire extinguishing.

[0003] The valve of a conventional hot aerosol fire extinguishing device usually does not have a one-way structure. When a reverse airflow flows in, the gas will enter the hot aerosol fire extinguishing device and affect the use of the hot aerosol fire extinguishing device. In view of this, the inventor conducted in-depth research on the above defects in the prior art, and thus the present case was created. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, the utility model aims to provide a one-way sealing valve, which is provided with a valve body and a valve disc, a fluid channel is provided in the valve body, and the valve disc is rotatably provided in the valve body. When a reverse airflow flows in, the gas drives the valve disc to press against the output end of the fluid channel, thereby preventing the gas from flowing into the hot aerosol fire extinguishing device, and achieving a one-way check effect.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a one-way sealing valve, comprising a valve body and a valve disc;

[0006] A fluid channel is arranged in the valve body, one end of the fluid channel is an input end, the other end of the fluid channel is an output end, and the end of the valve body forms an outlet;

[0007] The valve flap is rotatably arranged in the valve body, and the valve flap has an open state and a closed state; in the open state, the valve flap is not in contact with the output end, so that the input end is connected with the outlet through the output end; in the closed state, the valve flap abuts against the output end, so that the input end is not connected with the outlet.

[0008] Furthermore, a mounting channel is formed on the side of the valve body, a rotating shaft for the valve disc to rotate is arranged in the mounting channel, and a valve cover is arranged at the end of the mounting channel.

[0009] Furthermore, the valve flap comprises a rotating seat and a flap body, wherein the rotating seat is connected to the rotating shaft and can rotate along the rotating shaft, and the flap body is connected to the rotating seat and rotates synchronously with the rotating seat.

[0010] Furthermore, an elastic pad is provided at the bottom of the petal body, and the elastic pad can be pressed against the output end.

[0011] Furthermore, a boss is provided on the petal body, a connecting groove is formed in the boss, and a connecting port is provided on the elastic pad; it also includes a gasket and a connecting piece, the gasket rests on the bottom of the elastic pad, and the connecting piece passes through the gasket and the connecting port and is connected to the connecting groove.

[0012] Furthermore, a sealing diaphragm is arranged in the valve body, and the sealing diaphragm is located above the fluid channel; and a bayonet capable of piercing the sealing diaphragm is arranged on the valve body.

[0013] Furthermore, a convex ring is arranged in the valve body, and the sealing diaphragm is arranged on the convex ring.

[0014] Furthermore, it also includes a mounting ring seat, which is arranged in the valve body, the fluid channel is formed on the inner side of the mounting ring seat, and a starting channel is arranged in the mounting ring, one end of the starting channel can be blocked by the valve body or connected to the input end; it also includes a starting pipeline, which is arranged on the side of the valve body and connected to the other end of the starting channel.

[0015] Furthermore, the starting channels are provided in plurality, and the plurality of starting channels are provided in the mounting ring seat along the axial direction; an annular groove is provided on the mounting ring seat, the annular groove is communicated with the plurality of starting channels, and the annular groove is communicated with the starting pipeline.

[0016] After adopting the above structure, the one-way sealing valve involved in the utility model has at least the following beneficial effects:

[0017] First, when in use, the one-way sealing valve is set on the hot melt adhesive fire extinguishing device. When a fire is detected, the hot melt adhesive fire extinguishing device sprays out fire extinguishing gas, which flows from the input end of the valve body to the fluid channel, and then drives the valve flap to rotate, so that the valve flap switches from a closed state to an open state, so that the fire extinguishing gas is output from the outlet at the end of the valve body to extinguish the fire source. Multiple hot melt glue fire extinguishing devices can be arranged side by side, and the outlets of the valve bodies of each hot melt glue fire extinguishing device are connected together through a collecting pipe. Each hot melt glue fire extinguishing device corresponds to a protection zone. When there is a fire in one protection zone and there is no fire in the other protection zone, the first hot melt glue fire extinguishing device sprays out fire extinguishing gas. The fire extinguishing gas of the first hot melt glue fire extinguishing device enters the collecting pipe through the first one-way sealing valve, and is finally sprayed to the protection zone through the branch pipe. A small part of the fire extinguishing gas sprayed out by the first hot melt glue fire extinguishing device enters the second one-way sealing valve of the second hot melt glue fire extinguishing device along the collecting pipe to press the valve disc of the second one-way sealing valve against the output end, so that the input end of the second hot melt glue fire extinguishing device is not connected to the outlet, thereby achieving a one-way check effect.

[0018] Second, by setting up an installation channel, when installing the valve disc, the valve disc can be installed in the valve body through the installation channel. During the specific installation, the rotating seat of the valve disc is connected to the rotating shaft in the installation channel, so that the rotating seat can rotate along the rotating shaft. The rotation of the rotating seat drives the valve disc to rotate synchronously, thereby realizing the switching of the valve disc between the open state and the closed state.

[0019] Third, by setting an elastic pad, when in a closed state, the elastic pad rests against the output end. Under the action of the deadweight of the valve disc or the airflow, the elastic pad is tightly deformed and pressed against the output end, so that the sealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a one-way sealing valve in a closed state according to an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the valve flap of the one-way sealing valve in an open state according to an embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of a valve flap according to an embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the valve flap according to another angle of the embodiment of the utility model;

[0024] Figure 5 It is a structural schematic diagram of a mounting ring seat according to an embodiment of the utility model;

[0025] Figure 6It is a structural schematic diagram of another angle of the mounting ring seat according to an embodiment of the utility model;

[0026] Figure 7 The figure is a schematic diagram of the structure in which a one-way sealing valve according to an embodiment of the utility model is installed on a hot melt adhesive fire extinguishing device.

[0027] Description of symbols

[0028] Valve body 1, fluid channel 11, input end 111, output end 112, outlet 12, installation channel 13, rotating shaft 14, sealing diaphragm 15, convex ring 16, mounting ring seat 17, starting channel 171, ring groove 172, valve disc 2, rotating seat 21, valve body 22, bayonet 221, elastic pad 23, connecting port 231, convex seat 24, gasket 25, connecting piece 26, valve cover 3, starting pipeline 4. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figures 1 to 7 As shown, a one-way sealing valve of the utility model comprises a valve body 1 and a valve flap 2; a fluid channel 11 is arranged in the valve body 1, one end of the fluid channel 11 is an input end 111, the other end of the fluid channel 11 is an output end 112, and an outlet 12 is formed at the end of the valve body 1; the valve flap 2 is rotatably arranged in the valve body 1, and the valve flap 2 has an open state and a closed state; in the open state, the valve flap 2 does not contact the output end 112, so that the input end 111 is connected with the outlet 12 through the output end 112; in the closed state, the valve flap 2 abuts against the output end 112, so that the input end 111 is not connected with the outlet 12.

[0031] In this way, the one-way sealing valve involved in the utility model is set on the hot melt adhesive fire extinguishing device when in use. When a fire is detected, the hot melt adhesive fire extinguishing device sprays out fire extinguishing gas, which flows from the input end 111 of the valve body 1 to the fluid channel 11, and then drives the valve flap 2 to rotate, so that the valve flap 2 switches from a closed state to an open state, so that the fire extinguishing gas is output from the outlet 12 at the end of the valve body 1 to extinguish the fire source.

[0032] Multiple hot melt adhesive fire extinguishing devices can be arranged side by side. The outlet 12 of the valve body 1 of each hot melt adhesive fire extinguishing device is connected together through a manifold 10. Each hot melt adhesive fire extinguishing device corresponds to a protection zone. When there is a fire in one protection zone and there is no fire in another protection zone, Figure 7As shown, at this time, the first hot melt adhesive fire extinguishing device 20 sprays out fire extinguishing gas, and the fire extinguishing gas of the first hot melt adhesive fire extinguishing device 20 enters the collecting pipe 10 through the first one-way sealing valve 201, and is finally sprayed to the protection area through the branch pipe 202. A small part of the fire extinguishing gas sprayed out by the first hot melt adhesive fire extinguishing device 20 enters the second one-way sealing valve 301 of the second hot melt adhesive fire extinguishing device 30 along the collecting pipe 10, so as to make the valve disc 2 of the second one-way sealing valve 301 abut against the output end 112, so that the input end 111 of the second hot melt adhesive fire extinguishing device 30 is not connected with the outlet 12, so as to achieve the effect of one-way check.

[0033] Optionally, a mounting channel 13 is formed on the side of the valve body 1, a rotating shaft 14 for the valve disc 2 to rotate is arranged in the mounting channel 13, and a valve cover 3 is arranged at the end of the mounting channel 13. The valve disc 2 includes a rotating seat 21 and a flap body 22, the rotating seat 21 is connected to the rotating shaft 14 and can rotate along the rotating shaft 14, and the flap body 22 is connected to the rotating seat 21 and rotates synchronously with the rotating seat 21. By providing the mounting channel 13, when installing the valve disc 2, the valve disc 2 can be installed in the valve body 1 through the mounting channel 13. During the specific installation, the rotating seat 21 of the valve disc 2 is connected to the rotating shaft 14 in the mounting channel 13, so that the rotating seat 21 can rotate along the rotating shaft 14, and the rotation of the rotating seat 21 drives the valve disc 2 to rotate synchronously, thereby realizing the switching of the valve disc 2 between the open state and the closed state.

[0034] Furthermore, an elastic pad 23 is provided at the bottom of the flap body 22, and the elastic pad 23 can abut against the output end 112. By providing the elastic pad 23, in the closed state, the elastic pad 23 abuts against the output end 112, and the elastic pad 23 is tightly deformed and abuts against the output end 112 under the action of the deadweight of the valve flap 2 or the airflow, so that the sealing effect is better.

[0035] In this embodiment, a convex seat 24 is provided on the petal body 22, a connecting groove is formed in the convex seat 24, and a connecting port 231 is provided on the elastic pad 23; a gasket 25 and a connecting member 26 are also included, the gasket 25 is against the bottom of the elastic pad 23, and the connecting member 26 passes through the gasket 25 and the connecting port 231 and is connected to the connecting groove. When installing the elastic pad 23, the connecting member 26 passes through the gasket 25 and the connecting port 231 in sequence and is connected to the connecting groove, so that the elastic pad 23 is firmly locked on the petal body 22.

[0036] In some examples, a sealing diaphragm 15 is provided in the valve body 1, and the sealing diaphragm 15 is located above the fluid channel 11; a bayonet 221 capable of piercing the sealing diaphragm 15 is provided on the valve body 22, and the function of the sealing diaphragm 15 is to enhance the sealing effect and ensure the long-term storage of the agent. By providing the bayonet 221, the sealing diaphragm 15 can be pierced to achieve the output of fire extinguishing gas.

[0037] Furthermore, a convex ring 16 is provided in the valve body 1, and the sealing diaphragm 15 is provided on the convex ring 16. By providing the convex ring 16, when the valve flap 2 is in the open state, the valve flap 2 abuts against the convex ring 16, so that the valve flap 2 does not fit the inner wall of the valve body 1. When the airflow reverses, the force bearing area of ​​the valve flap 2 is large, so that the valve flap 2 is convenient to switch to the closed state under the action of the airflow.

[0038] In this embodiment, it also includes a mounting ring seat 17, which is arranged in the valve body 1, and the fluid channel 11 is formed inside the mounting ring seat 17. A starting channel 171 is arranged in the mounting ring, and one end of the starting channel 171 can be blocked by the flap body 22 or communicated with the input end 111; it also includes a starting pipeline 4, which is arranged on the side of the valve body 1 and communicated with the other end of the starting channel 171. By setting the starting channel 171, when the valve flap 2 is in the open state, part of the gas enters the starting pipeline 4 along the starting channel 171, and the starting pipeline 4 is connected to the selection valve. After the gas enters the selection valve, it drives the selection valve to open, so that the outlet 12 enters the selection valve through the manifold, and after passing through the selection valve, it extinguishes the fire through the branch pipe.

[0039] Furthermore, a plurality of starting channels 171 are provided, and the plurality of starting channels 171 are provided in the mounting ring seat 17 along the axial direction; an annular groove 172 is provided on the mounting ring seat 17, and the annular groove 172 is communicated with the plurality of starting channels 171, and the annular groove 172 is communicated with the starting pipeline 4. By providing a plurality of starting channels 171, it is convenient for gas to enter the annular groove 172 through the starting channel 171, and then enter the starting pipeline 4 through the annular groove 172.

[0040] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A one-way sealing valve, characterized in that: Including valve body and valve disc; A fluid channel is arranged in the valve body, one end of the fluid channel is an input end, the other end of the fluid channel is an output end, and the end of the valve body forms an outlet; The valve flap is rotatably arranged in the valve body, and the valve flap has an open state and a closed state; In the open state, the valve disc does not contact the output end, so that the input end is connected to the outlet through the output end; in the closed state, the valve disc abuts against the output end, so that the input end is not connected to the outlet.

2. The one-way sealing valve according to claim 1, characterized in that: A mounting channel is formed on the side of the valve body, a rotating shaft for the valve disc to rotate is arranged in the mounting channel, and a valve cover is arranged at the end of the mounting channel.

3. The one-way sealing valve according to claim 2, characterized in that: The valve flap comprises a rotating seat and a flap body, wherein the rotating seat is connected to the rotating shaft and can rotate along the rotating shaft, and the flap body is connected to the rotating seat and rotates synchronously with the rotating seat.

4. The one-way sealing valve according to claim 3, characterized in that: An elastic pad is arranged at the bottom of the petal body, and the elastic pad can abut against the output end.

5. The one-way sealing valve according to claim 4, characterized in that: A convex seat is arranged on the petal body, a connecting groove is formed in the convex seat, and a connecting port is arranged on the elastic pad; it also includes a gasket and a connecting piece, the gasket abuts against the bottom of the elastic pad, and the connecting piece passes through the gasket and the connecting port and is connected to the connecting groove.

6. The one-way sealing valve according to claim 5, characterized in that: A sealing diaphragm is arranged in the valve body, and the sealing diaphragm is located above the fluid channel; a bayonet capable of piercing the sealing diaphragm is arranged on the valve body.

7. The one-way sealing valve according to claim 6, characterized in that: A convex ring is arranged in the valve body, and the sealing diaphragm is arranged on the convex ring.

8. The one-way sealing valve according to claim 1, characterized in that: It also includes a mounting ring seat, which is arranged in the valve body, the fluid channel is formed on the inner side of the mounting ring seat, and a starting channel is arranged in the mounting ring, one end of which can be blocked by the valve body or connected to the input end; it also includes a starting pipeline, which is arranged on the side of the valve body and connected to the other end of the starting channel.

9. The one-way sealing valve according to claim 8, characterized in that: The starting channels are provided in a plurality, and the plurality of starting channels are arranged in the mounting ring seat along the axial direction; an annular groove is provided on the mounting ring seat, the annular groove is communicated with the plurality of starting channels, and the annular groove is communicated with the starting pipeline.

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