Control valve with moisture protection function for fire fighting equipment

Abstract

This utility model relates to the field of fire protection equipment technology and discloses a control valve with moisture protection function for fire protection equipment, including a connecting pipe and a control valve body. The control valve body is fixedly connected to the pipe wall of the connecting pipe, and a housing is fixedly connected to the side wall of the control valve body. An air pump is fixedly connected to the side wall of the housing, and a fixing frame is fixedly connected to the inner wall of the housing. After the air pump provided by this utility model is started, it can deliver air into the housing. When the air flows through the dehumidifying filter screen on the inner wall of the fixing frame, the water vapor in it is absorbed by the filter screen to form dry air. The dry air enters the interior of the control valve body through the connecting hole at the connection between the control valve body and the housing, fills the internal space of the valve body, dilutes and discharges the humid air, prevents the metal parts or electronic components inside the control valve body from rusting due to moisture, avoids valve core jamming or sealing failure, and ensures the operational flexibility and sealing performance of the control valve.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a control valve for fire protection equipment with moisture protection function. Background Technology

[0002] Firefighting equipment is a core tool and system for protecting life and property and responding to fires and related emergencies. It covers four core functions: early warning, fire extinguishing, rescue, and protection. According to the usage scenario, it can be divided into fixed building firefighting equipment, mobile firefighting equipment, and personal protective equipment. It is an important part of the fire safety system.

[0003] In the existing technology, during the use of fire-fighting equipment, it is necessary to use control valves to stably regulate the fire-fighting equipment. When fire-fighting equipment is used for fire extinguishing, the vaporization or evaporation of a large amount of fire-fighting water will make the air environment at the scene relatively humid, which will make the internal components of the control valve susceptible to water vapor corrosion and affect the normal operation of the internal circuit. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a control valve with moisture protection function for fire-fighting equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A control valve for fire protection equipment with moisture protection function includes a connecting pipe and a control valve body. The control valve body is fixedly connected to the pipe wall of the connecting pipe. A housing is fixedly connected to the side wall of the control valve body. An air pump is fixedly connected to the side wall of the housing. A fixing frame is fixedly connected to the inner wall of the housing. A dehumidifying filter is provided on the inner wall of the fixing frame. A connecting hole is provided at the connection between the control valve body and the housing. Multiple rectangular openings are provided on the side wall of the control valve body.

[0006] Preferably, connecting flanges are fixedly connected to both ends of the connecting pipe.

[0007] Preferably, an end cap is fixedly connected to the side wall of the box, and multiple mounting bolts are threadedly connected to the end cap at the connection between the end cap and the box.

[0008] Preferably, the control valve body is fixedly connected to two fixing plates on the side walls of multiple rectangular openings, and a fixing rod is fixedly connected to one side of each of the two fixing plates. A cover plate is movably sleeved on the rod wall of the fixing rod, and the cover plate covers the side walls of the rectangular openings.

[0009] Preferably, the top inner wall of the cover plate has an opening, and a torsion spring is sleeved on the rod wall of the fixing rod at the opening. One end of the torsion spring is fixedly connected to the inner wall of the cover plate, and the other end of the torsion spring is fixedly connected to the rod wall of the fixing rod.

[0010] Preferably, a sealing rubber gasket is fixedly connected to the side wall of the cover plate, and the sealing rubber gasket is pressed and installed on the side wall of the control valve body located at the rectangular opening.

[0011] Compared with the prior art, this utility model provides a control valve with moisture protection function for fire-fighting equipment, which has the following beneficial effects: 1. This fire-fighting equipment uses a control valve with moisture protection function. After being started by the air pump, it can supply air into the box. When the air flows through the dehumidifying filter screen on the inner wall of the fixed frame, the water vapor in it is absorbed by the filter screen to form dry air. The dry air enters the control valve body through the connecting hole at the connection between the control valve body and the box body, fills the internal space of the valve body, dilutes and discharges the humid air, prevents the metal parts or electronic components inside the control valve body from rusting due to moisture, avoids valve core jamming or sealing failure, and ensures the operational flexibility and sealing performance of the control valve.

[0012] 2. The fire-fighting equipment uses a control valve with moisture protection function. When a pressure difference is generated inside the control valve body during dehumidification, the rectangular port can discharge the high-pressure gas inside the control valve body, balance the internal and external pressure, and prevent the internal components of the control valve body from deforming due to excessive pressure. The cover plate that is movably sleeved on the fixed rod between the two fixed plates on the side wall of the rectangular port covers the rectangular port under normal conditions, preventing external dust, impurities or a large amount of humid air from entering the valve body through the rectangular port.

[0013] 3. The fire-fighting equipment uses a control valve with moisture protection function. A torsion spring at the opening on the inner wall of the top of the cover plate is sleeved on the wall of the fixed rod. One end is fixed to the inner wall of the cover plate and the other end is fixed to the wall of the fixed rod. In its natural state, it has a pre-tightening force, which pushes the cover plate to fit against the side wall of the control valve body to ensure the seal of the rectangular opening. When the internal pressure of the valve body is higher than that of the outside, the pressure pushes the cover plate to overcome the elastic force of the torsion spring and rotate around the fixed rod, opening the rectangular opening to release the pressure. After the pressure is balanced, the torsion spring drives the cover plate to automatically reset and cover the rectangular opening again. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a control valve with moisture protection function for fire-fighting equipment proposed in this utility model; Figure 2 This is a partial structural cross-sectional view of a control valve with moisture protection function for fire-fighting equipment proposed in this utility model; Figure 3 for Figure 1 A magnified schematic diagram of part A in the middle section.

[0015] In the diagram: 1 connecting pipe, 2 control valve body, 3 connecting flange, 4 housing, 5 air pump, 6 fixing frame, 7 dehumidifying filter, 8 end cap, 9 mounting bolt, 10 rectangular opening, 11 fixing plate, 12 fixing rod, 13 torsion spring, 14 cover plate, 15 sealing rubber gasket. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-3 A control valve for fire protection equipment with moisture protection function includes a connecting pipe 1 and a control valve body 2. The control valve body 2 is fixedly connected to the pipe wall of the connecting pipe 1. A box 4 is fixedly connected to the side wall of the control valve body 2. An air pump 5 is fixedly connected to the side wall of the box 4. A fixing frame 6 is fixedly connected to the inner wall of the box 4. A dehumidifying filter 7 is provided on the inner wall of the fixing frame 6. A connecting hole is provided at the connection between the control valve body 2 and the box 4. Multiple rectangular openings 10 are provided on the side wall of the control valve body 2.

[0018] The control valve body 2 is fixedly connected to two fixing plates 11 on the side walls of multiple rectangular openings 10. A fixing rod 12 is fixedly connected to the corresponding side of the two fixing plates 11. A cover plate 14 is movably sleeved on the rod wall of the fixing rod 12. The cover plate 14 covers the side wall of the rectangular opening 10. An opening is opened on the inner wall of the top of the cover plate 14. A torsion spring 13 is sleeved on the rod wall of the fixing rod 12 at the opening. One end of the torsion spring 13 is fixedly connected to the inner wall of the cover plate 14, and the other end of the torsion spring 13 is fixedly connected to the rod wall of the fixing rod 12.

[0019] Connecting pipe 1 is the core channel of the fire protection pipeline, used to transport fire water. The connecting flanges 3 fixed at both ends facilitate connection with other pipelines in the fire protection system, ensuring that the pipeline connection is sealed and secure. The control valve body 2 fixed on the wall of connecting pipe 1 is the core component for pipeline on / off and flow control. The opening and closing of the valve core built into the control valve body 2 regulates the delivery status of fire water, adapting to the water flow control requirements during fire extinguishing.

[0020] After the air pump 5, which is fixed to the side wall of the box 4, is started, it can deliver air into the box 4. When the air flows through the dehumidifying filter 7 on the inner wall of the fixed frame 6, the water vapor in it is absorbed by the filter and forms dry air. The dry air enters the interior of the control valve body 2 through the connecting hole at the connection between the control valve body 2 and the box 4, fills the internal space of the valve body, dilutes and discharges the humid air, prevents the metal parts or electronic components inside the control valve body 2 from rusting due to moisture, avoids valve core jamming or sealing failure, and ensures the operational flexibility and sealing of the control valve.

[0021] Multiple rectangular openings 10 on the side wall of the control valve body 2 are used for pressure balancing: when a pressure difference is generated inside the control valve body 2 during dehumidification, the rectangular openings 10 can discharge the high-pressure gas inside the control valve body 2, balance the internal and external pressure, and prevent the internal components of the control valve body 2 from deforming due to excessive pressure; the cover plate 14, which is movably sleeved on the fixing rod 12 fixed between the two fixing plates 11 on the side wall of the rectangular opening 10, covers the rectangular opening 10 under normal conditions to prevent external dust, impurities or a large amount of humid air from entering the valve body through the rectangular opening 10.

[0022] The torsion spring 13 at the opening on the inner wall of the top of the cover plate 14 is sleeved on the wall of the fixing rod 12. One end is fixed to the inner wall of the cover plate 14 and the other end is fixed to the wall of the fixing rod 12. In its natural state, it has a pre-tightening force, which pushes the cover plate 14 to fit against the side wall of the control valve body 2 to ensure the sealing of the rectangular opening 10. When the internal pressure of the valve body is higher than that of the outside, the pressure pushes the cover plate 14 to overcome the elastic force of the torsion spring 13 and rotate around the fixing rod 12, opening the rectangular opening 10 to release the pressure. After the pressure is balanced, the torsion spring 13 drives the cover plate 14 to automatically reset and cover the rectangular opening 10 again.

[0023] For ease of maintenance and operation, such as Figure 1-3 As shown, connecting flanges 3 are fixedly connected to both ends of the connecting pipe 1, and end caps 8 are fixedly connected to the side wall of the box body 4. Multiple mounting bolts 9 are threadedly connected to the connection between the end caps 8 and the box body 4.

[0024] A sealing rubber gasket 15 is fixedly connected to the side wall of the cover plate 14, and the sealing rubber gasket 15 is pressed and set on the side wall of the control valve body 2 located at the rectangular opening.

[0025] The end cap 8 on the side wall of the box body 4 is fixed to the box body 4 by the mounting bolt 9, which makes it easy to open the end cap 8 to replace the dehumidifying filter 7 and ensure that the dehumidification function is effective for a long time. When the dehumidifying filter 7 is saturated with water vapor, the mounting bolt 9 can be unscrewed and the end cap 8 can be removed to replace the new filter. The maintenance operation is convenient. The sealing rubber gasket 15 fixed on the side wall of the cover plate 14 further enhances the sealing effect and prevents humid air from seeping in through the gap between the cover plate 14 and the valve body under normal conditions.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A control valve for fire-fighting equipment with moisture protection function, comprising a connecting pipe (1) and a control valve body (2), characterized in that: The control valve body (2) is fixedly connected to the wall of the connecting pipe (1). A box (4) is fixedly connected to the side wall of the control valve body (2). An air pump (5) is fixedly connected to the side wall of the box (4). A fixing frame (6) is fixedly connected to the inner wall of the box (4). A dehumidifying filter (7) is provided on the inner wall of the fixing frame (6). A connecting hole is provided at the connection between the control valve body (2) and the box (4). Multiple rectangular openings (10) are provided on the side wall of the control valve body (2).

2. A control valve with moisture protection function for fire-fighting equipment according to claim 1, characterized in that: The two ends of the connecting pipe (1) are respectively fixedly connected to connecting flanges (3).

3. A control valve with moisture protection function for fire-fighting equipment according to claim 1, characterized in that: An end cap (8) is fixedly connected to the side wall of the box (4), and multiple mounting bolts (9) are threadedly connected to the end cap (8) and the box (4).

4. A control valve with moisture protection function for fire-fighting equipment according to claim 1, characterized in that: The control valve body (2) is fixedly connected to two fixing plates (11) on the side wall of multiple rectangular openings (10). The two fixing plates (11) are fixedly connected to a fixing rod (12) on the corresponding side. A cover plate (14) is movably sleeved on the rod wall of the fixing rod (12). The cover plate (14) covers the side wall of the rectangular opening (10).

5. A control valve with moisture protection function for fire-fighting equipment according to claim 4, characterized in that: The top inner wall of the cover plate (14) has an opening, and the fixing rod (12) is fitted with a torsion spring (13) on the rod wall of the opening. One end of the torsion spring (13) is fixedly connected to the inner wall of the cover plate (14), and the other end of the torsion spring (13) is fixedly connected to the rod wall of the fixing rod (12).

6. A control valve with moisture protection function for fire-fighting equipment according to claim 4, characterized in that: A sealing rubber gasket (15) is fixedly connected to the side wall of the cover plate (14), and the sealing rubber gasket (15) is pressed and set on the side wall of the control valve body (2) located at the rectangular opening.

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