Non-fire-fighting power switch cut-off device for fire-fighting starting

Abstract

The utility model relates to the field of fire fighting, in particular to a non-fire-fighting power switch cut-off device for fire fighting starting. According to the technical scheme, the device comprises a hydroelectric generation device, a water flow sensor, a non-fire-fighting power supply on-off associated control electromagnetic relay and a weak current signal power supply; a water flow sensor and a hydroelectric generation device are arranged in a fire-fighting pipeline, a lead-out wire of the hydroelectric generation device is connected with a weak current signal power supply, and the weak current signal power supply is connected with the water flow sensor in series and connected into a non-fire-fighting power supply on-off associated control electromagnetic relay. The action end of the non-fire-fighting power supply switch-on and switch-off control electromagnetic relay is connected in series with the front end of the line switch of the non-fire-fighting power supply switch. According to the utility model, when the indoor fire hydrant is used, the non-fire-fighting power switch is switched off in a linkage manner, so that indoor electrical equipment is not electrified, and electric shock accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the field of fire protection, in particular to a non-fire protection power switch disconnecting device activated by fire protection. Background Art

[0002] Fire hydrant systems are common fire-fighting facilities in residential, industrial and civil buildings.

[0003] The Code for Fire Protection Design of Buildings (GB50016-2018) stipulates that if the building covers an area of ​​more than 300m 2 Indoor fire hydrant systems are required for factories and warehouses, high-rise public buildings and residential buildings with a building height greater than 21m. The "Design Specifications for Automatic Fire Alarm Systems" (GB 50116-2013) stipulates that the regional alarm system does not have a fire linkage function.

[0004] When a fire occurs indoors, the fire hydrant system is often a key facility for fire fighting. When using fire hydrants to fight fires, a large amount of fire water will be scattered indoors. At the same time, there are distribution cabinets, distribution boxes and other electrical equipment indoors, which may lead to electric shock accidents during or after the fire fighting process. In order to avoid such accidents, buildings with linkage controllers are equipped with linkage facilities to cut off non-fire power switches. However, buildings with separate fire hydrant systems generally do not have fire linkage controllers, so electric shock accidents cannot be avoided. Summary of the invention

[0005] In order to solve the above problems, the utility model provides a fire-fighting-activated non-fire power switch disconnecting device, which cuts off the non-fire circuit by starting the fire-fighting system to avoid electric shock accidents during fire-fighting water spraying.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model fire-fighting-activated non-fire power switch disconnecting device comprises a hydroelectric generating device, a water flow sensor, a non-fire power switch interlocking electromagnetic relay, and a weak current signal power supply;

[0008] The water flow sensor and the hydroelectric power generation device are arranged in the fire protection pipeline. The hydroelectric power generation device leads out a wire to connect the weak-current signal power supply. The weak-current signal power supply is connected in series to the water flow sensor and connected to the non-fire power switch interlocking electromagnetic relay. The weak-current signal power supply, the water flow sensor and the non-fire power switch interlocking electromagnetic relay are energized in the travel circuit. The actuating end of the non-fire power switch interlocking electromagnetic is connected in series to the front end of the line switch of the non-fire power switch.

[0009] According to the fire-activated non-fire power switch disconnecting device, the water flow sensor includes a paddle, a rotating conductor, a fixed conductor, a conductive contact and a connecting wire arranged in the fire pipe, the paddle is connected to the rotating conductor through a rotating rod, a sealed bearing is arranged at the place where the rotating rod passes through the wall of the fire pipe, a conductive protrusion is arranged on the surface of the rotating conductor, and the conductive protrusion contacts the fixed conductor when the rotating conductor rotates, the conductive contact is arranged at the end of the rotating conductor, and connecting wires are respectively led out of the conductive contact and the fixed conductor.

[0010] According to the fire-fighting-activated non-fire power switch disconnecting device, the rotating conductor, the fixed conductor, and the conductive contact are wrapped in a shell, and the shell is provided with a clamp fixed on the fire-fighting pipe.

[0011] According to the fire-activated non-fire power switch disconnecting device, the conductive contact is a conductive spring, an arc-shaped metal sheet is arranged at the end of the conductive spring to contact the end circumference of the rotating conductor, and the other end of the conductive spring is connected to a connecting wire.

[0012] According to the fire-started non-fire power switch disconnecting device, it is characterized in that the water flow sensor is arranged in the front section of the start valve of the fire-fighting pipeline, and the hydroelectric power generation device is arranged in the rear section of the start valve in the fire-fighting pipeline.

[0013] The advantages of the utility model are:

[0014] When the utility model is used, when the indoor fire hydrant is used, the non-fire power switch can be linked to cut off, thereby ensuring that the indoor electrical equipment is not energized and avoiding the occurrence of electric shock accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the internal structure of the electrical component housing and pipe clamp.

[0017] Figure numerals: 1. water flow sensor, 2. connecting wire, 3. weak current signal power supply, 4. electromagnetic relay, 5. non-fire power switch, 6. pipe clamp, 7. paddle, 8. connecting rod, 9. rotating conductor, 10. fixed conductor, 11. rotating shaft, 12. conductive spring, 13. sealed rotating shaft, 14. hydroelectric power generation device, 15. casing, 16. power generation wire, 17 fire protection pipe. DETAILED DESCRIPTION

[0018] The preferred examples of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred examples described herein are only used to illustrate and explain the present invention, and do not limit the present invention.

[0019] It should be noted that the directions or positional relationships indicated by terms such as “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the state or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figures 1 to 2 As shown, it includes a hydroelectric power generation device, a water flow sensor 1, a non-fire power switch 5 linked to an electromagnetic relay, and a weak current signal power supply 3.

[0021] The water flow sensor 1 and the hydroelectric power generation device are arranged in the fire-fighting pipe. Specifically, the water flow sensor 1 is arranged in the front section of the starting valve of the fire-fighting pipe, and the hydroelectric power generation device is arranged in the rear section of the starting valve in the fire-fighting pipe.

[0022] The lead wire of the hydroelectric power generation device is connected to the weak signal power supply 3, the weak signal power supply 3 is connected in series with the water flow sensor 1 and connected to the non-fire power switch 5 joint control electromagnetic relay, and the weak signal power supply 3, the water flow sensor 1 and the non-fire power switch 5 joint control electromagnetic relay are energized. The action end of the non-fire power switch 5 joint control electromagnetic is connected in series with the front end of the line switch of the non-fire power switch 5.

[0023] The hydroelectric device 17 rotates under the impact of fire water. The hydroelectric device 17 includes an impeller and a generator, and is installed on the main pipe of the fire hydrant. When the water in the fire hydrant flows, the hydroelectric device 17 drives the generator to generate electricity through the rotation of the impeller, thereby charging the weak current signal power supply 3.

[0024] The weak-current signal power supply 3 charges electric energy, and the weak-current signal power supply 3 regulates the unstable current into a relay signal current, preparing for the electromagnetic relay and the water conservancy sensor that are about to be connected.

[0025] The weak current signal power supply device can be a capacitor, and the charge size of the stored electric energy can be controlled to avoid excessive storage of electric energy affecting repeated subsequent use.

[0026] When the fire water is turned on, the water flow sensor senses the water flow, connects the circuit, and the electromagnetic relay is energized to control the pipe wall of the non-fire power switch.

[0027] Specifically, the water flow sensor 1 in the device includes a paddle 7, a rotating conductor 9, a fixed conductor 10, a conductive contact and a connecting wire 2 arranged in a fire pipe, wherein the paddle 7 is connected to the rotating conductor 9 through a rotating rod, a sealed bearing is arranged at the place where the rotating rod passes through the wall of the fire pipe, a conductive protrusion is arranged on the surface of the rotating conductor 9, and the conductive protrusion contacts the fixed conductor 10 when the rotating conductor 9 rotates, and the conductive contact is arranged at the end of the rotating conductor 9, and the conductive contact and the fixed conductor 10 lead out the connecting wire 2 respectively. The sealed bearing enables the connecting rod 8 to swing with the movement of the paddle 7, and ensures that water does not enter the interior of the housing 15.

[0028] The rotating conductor 9, the fixed conductor 10 and the conductive contact are wrapped in a shell, and the shell is provided with a clamp fixed on the fire protection pipe. The conductive contact is a conductive spring 12, and an arc-shaped metal sheet is provided at the end of the conductive spring 12 to contact the end circumference of the rotating conductor 9, and the other end of the conductive spring 12 is connected to the connecting wire 2.

[0029] The conductive medium is made of copper, and the pipe clamp 6 and the outer shell 15 are painted red, and are used together with fire-fighting facilities to ensure that the device is eye-catching.

[0030] Working principle: This device is installed on the fire hydrant pipe through the pipe clamp 6, and the paddle 7 is located in the fire hydrant pipe. In normal state, the fire water in the fire hydrant pipe will not flow, the hydroelectric device 17 will not start, the water flow indicator paddle 7 is in the normal position, and the water flow sensor 1 is in the open circuit state, thereby ensuring that the electromagnetic relay 4 is not energized and the non-fire power switch will not trip.

[0031] When a fire occurs, the fire hydrant is opened to extinguish the fire, and the fire water in the pipe flows in the correct installation direction, thereby driving the blade 7 of the water flow indicator sensor to swing, so that the rotating conductor is close to the fixed contact piece 10, and the water flow can drive the hydroelectric power generation device 17 to generate electricity and charge the weak current signal power supply 3. When the rotating conductor contacts the fixed conductor, the water flow sensor 1 is in a pass state, and the electromagnetic relay 4 is energized. After the electromagnetic relay 4 is energized, it will run a pre-set program, cut off the non-fire power switch, and disconnect the indoor non-fire power circuit.

[0032] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned implementation cases, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fire-activated non-fire power switch disconnecting device, characterized in that: It includes a hydroelectric power generation device, a water flow sensor (1), a non-fire power switch (5), a joint control electromagnetic relay, and a weak current signal power supply (3); The water flow sensor (1) and the hydroelectric power generation device are arranged in a fire protection pipe, the hydroelectric power generation device leads out a wire connected to a weak current signal power supply (3), the weak current signal power supply (3) is connected in series to the water flow sensor (1) and connected to a non-fire power switch (5) interlocking electromagnetic relay, the weak current signal power supply (3), the water flow sensor (1) and the non-fire power switch (5) interlocking electromagnetic relay travel energizing circuit, and the non-fire power switch (5) interlocking electromagnetic action end is connected in series to the front end of the line switch of the non-fire power switch (5).

2. The fire-activated non-fire power switch disconnecting device according to claim 1 is characterized in that: The water flow sensor (1) comprises a paddle (7) arranged in a fire protection pipe, a rotating conductor (9), a fixed conductor (10), a conductive contact and a connecting wire (2), wherein the paddle (7) is connected to the rotating conductor (9) via a rotating rod, a sealed bearing is arranged at a position where the rotating rod passes through the wall of the fire protection pipe, a conductive protrusion is arranged on the surface of the rotating conductor (9), and the conductive protrusion contacts the fixed conductor (10) when the rotating conductor (9) rotates, and the conductive contact is arranged at the end of the rotating conductor (9), and connecting wires (2) are respectively led out of the conductive contact and the fixed conductor (10).

3. The fire-activated non-fire power switch disconnecting device according to claim 2, characterized in that: The rotating conductor (9), the fixed conductor (10), and the conductive contact piece are wrapped in an outer shell, and the outer shell is provided with a clamp fixed on the fire protection pipe.

4. The fire-activated non-fire power switch disconnecting device according to claim 3 is characterized in that: The conductive contact piece is a conductive spring (12), an arc-shaped metal sheet is provided at the end of the conductive spring (12) to contact the circumferential surface of the end of the rotating conductor (9), and the other end of the conductive spring (12) is connected to the connecting wire (2).

5. The fire-activated non-fire power switch disconnecting device according to claim 1, characterized in that: The water flow sensor (1) is arranged at the front section of the start valve of the fire-fighting pipeline, and the hydroelectric power generation device is arranged at the rear section of the start valve in the fire-fighting pipeline.

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