WO2016011959A1

WO2016011959A1 - Alarm fire hydrant

Info

Publication number: WO2016011959A1
Application number: PCT/CN2015/084891
Authority: WO
Inventors: 冯林
Original assignee: 冯林
Priority date: 2014-07-25
Filing date: 2015-07-23
Publication date: 2016-01-28
Also published as: CN105683454A; CN104088328B; CN104088328A

Abstract

Provided is an alarm fire hydrant device, comprising a water release valve (1) and a fire-control connector (2); the water inlet connector (3) of the water release valve (1) is provided with an alarm device (4). The alarm device (4) comprises a float tank (5), a float (6), a first guide rod (7), a movable contact (8), a stationary contact (9), a switch box (10), a controller (11), a loudspeaker (12), and a warning lamp (13). When the fire hydrant has water, the controller (11) is in a state of non-alarm; when the fire hydrant has no water, the controller (11) is in a state of alarm, and the controller (11) controls the loudspeaker (12) and the warning lamp (13) to execute an alarm. The invention eliminates the risk of a fire hydrant having no water.

Description

Alarm hydrant

Technical field

The invention relates to a fire hydrant, in particular to an alarm fire hydrant.

Background technique

At present, fire hydrants used for fire fighting, due to various reasons, sometimes there is no hidden danger of water; if the fire hydrant has no water, the appearance of the fire hydrant is difficult to see, it is unfavorable for fire fighting, one can display the fire hydrant Whether there is a water alarm hydrant has become a need to eliminate the safety hazard of fire hydrants.

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art and provide an alarm fire hydrant for alarming the fire hydrant without water and displaying whether the fire hydrant has water, eliminating and reducing the safety hazard of the fire hydrant without water.

The technical solution adopted by the invention is: an alarm fire hydrant, including a drain valve and a fire joint, and an inlet joint of the drain valve is provided with an alarm device, and the alarm device comprises a float cylinder, a float ball, a first guide rod, and a dynamic touch Head, static contact, switch box, controller, speaker and alarm light; inlet joint is sealed with float ball cylinder, inlet joint is connected with float cylinder, float cylinder is connected with switch box, float cylinder and switch chamber There is a separating plate, the separating plate is provided with a first guiding sleeve, the first guiding sleeve is provided with a sealing member; the moving contact is located in the switch box, and the moving contact is connected with one end of the first guiding rod, and the first guiding rod is The other end is connected with the floating ball, the first guiding rod is mechanically and sealingly connected with the first guiding sleeve, the floating ball is located in the floating ball cylinder; the moving contact is insulated from the first guiding rod, and the static contact is installed in the switch box, and the static contact is The head is located above the moving contact, and the controller is connected to the static contact, the moving contact, the speaker and the warning light through the control line.

When in use, the water inlet joint is connected with the fire water pipe, and the power supply of the controller is connected; when the fire water pipe has water, the fire water enters the water inlet joint, and the fire water enters the floating device of the alarm device by the water inlet connector. The floating ball in the floating ball cylinder floats under the action of water pressure, and the first guiding rod connected with the floating ball rises as the floating ball rises, and the moving contact connected with the first guiding rod rises with the first guiding rod When the moving contact in the switch box rises to contact with the static contact, the moving contact and the static contact transmit the contact signal to the controller, so that the controller is in a non-alarm state. At this time, the controller controls the control. The sounder does not emit an alarm sound, and the controller controls the alarm light to not flash; when the fire water pipe is waterless, the floating ball moves downward under the action of gravity, so that the movable contact and the static contact are in non-contact state, and the movable contact The head and the static contact transmit the non-contact signal to the controller, so that the controller is in an alarm state, the controller controls the speaker to sound an alarm, the controller controls the alarm light to flash, reminds the person to notify the maintenance department to repair, and eliminates the fire hydrant without water. Security risks.

In order to facilitate the observation of whether the fire hydrant has water, the water inlet joint is provided with a display window, the display window is connected with the floating ball cylinder, the display window is provided with a fire water display buoy, the fire water display buoy has a red appearance, and the display window has a perspective. Mirror, the mirror is located in the upper part of the display window, the upper part of the display window is transparent, and the inside of the window can be visually displayed. The lower half of the display window is opaque, and the fire water shows the buoy in the lower half of the display window. Cannot see the fire water display buoy. When there is water in the fire hydrant, the fire water enters the display window from the water inlet connector, and the fire water of the display window shows that the buoy floats to the upper half of the display window, and the floating fire water display buoy can be seen through the perspective mirror, thereby judging The alarm hydrant has water. When the alarm hydrant is broken, the fire water display buoy of the display window drops to the lower half of the display window as the water level drops. The floating fire water display buoy cannot be seen through the fluoroscope, thereby judging that the alarm hydrant is waterless.

The utility model has the beneficial effects that: the fire hydrant is provided with an alarm device, and when the fire hydrant has water, the moving contact of the alarm device and the static contact transmit the signal of the water to the controller, and the controller is in a non-alarm state; When the water is not watered, the floating ball in the floating ball cylinder is lowered, the moving contact of the alarm device and the static contact transmit the waterless signal to the controller, the controller is in an alarm state, the controller controls the speaker and the alarm light alarm; People can observe whether the fire hydrant has water in the display window of the alarm hydrant, promptly notify the maintenance department to come to the maintenance, reduce the loopholes of the fire inspection, and eliminate the hidden danger of the fire hydrant.

DRAWINGS

Figure 1 is a schematic view of the structure of an alarm fire hydrant.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings:

The schematic diagram of the alarm fire hydrant shown in FIG. 1 , the alarm fire hydrant includes a drain valve 1 and a fire joint 2 , and the water inlet joint 3 of the drain valve 1 is provided with an alarm device 4 , and the alarm device 4 includes a float cylinder 5 . The float ball 6, the first guide rod 7, the movable contact 8, the static contact 9, the switch box 10, the controller 11, the speaker 12 and the warning lamp 13; the water inlet joint 3 is sealedly connected with the float cylinder 5, and the water inlet joint 3 is connected with the floating ball cylinder 5, the floating ball cylinder 5 is connected with the switch box 10, the floating ball cylinder 5 and the switch An isolation plate 14 is disposed between the cavities 9. The isolation plate 14 is provided with a first guide sleeve 15, and the first guide sleeve 15 is provided with a sealing member 16; the movable contact 8 is located in the switch box 10, and the movable contact 8 and the first guide One end of the rod 7 is connected, the other end of the first guiding rod 7 is connected with the floating ball 6, the first guiding rod 7 is in dynamic and sealing connection with the first guiding sleeve 15, the floating ball 6 is located in the floating ball cylinder 5; Insulated from the first guiding rod 7, the static contact 9 is installed in the switch box 10, the static contact 9 is located above the moving contact 8, and the controller 11 passes through the control line and the stationary contact 9, the movable contact 8, and the speaker 12. And the alarm light 13 is connected.

The working principle of the alarm fire hydrant is: when in use, the water inlet joint 3 is connected with the fire water pipe, and the power of the controller 11 is connected; when the fire water pipe has water, the fire water is entered into the water inlet joint 3, and the fire is fired. The water enters the float cylinder 5 of the alarm device 4 from the water inlet joint 3, and the float ball 6 in the float cylinder 5 floats under the action of the water pressure, and the first guide rod 7 connected to the float ball 6 rises with the float ball 6 Ascending, the movable contact 8 connected to the first guiding rod 7 rises as the first guiding rod 7 rises, and the moving contact 8 in the switch box 10 rises to contact with the stationary contact 9, the moving contact 8 and the static contact The head 9 transmits the signal of its contact to the controller 11, so that the controller 11 is in a non-alarm state. At this time, the controller 11 controls the speaker 12 to not emit an alarm sound, and the controller 11 controls the alarm lamp 13 not to flash; when the fire water pipe When there is no water, the float ball 6 moves downward under the action of its gravity, so that the movable contact 8 and the static contact 9 are in a non-contact state, and the movable contact 8 and the static contact 9 transmit their non-contact signals to the control. The controller 11 causes the controller 11 to be in an alarm state, and the controller 11 controls the speaker 12 to emit an alarm sound, and the controller 11 controls 13 flashing lights to remind people to inform the maintenance department repair, eliminate safety hazards of dry hydrants.

In order to ensure stable contact between the movable contact 8 and the static contact 9, and reduce the disturbance of the buoyancy change of the float ball 6 caused by the change of the water pressure, the switch box 10 is provided with the second guide sleeve 17, and the second guide sleeve 17 and the switch box 10 are insulated from each other. The second contact rod 18 is connected to the second guide rod 18, the second guide rod 18 is movably coupled to the second guide sleeve 17, and the second guide rod 18 is provided with a limiting meson. 19. The diameter of the limiting meson 19 is larger than the diameter of the second guiding sleeve 17, and a spring 20 is disposed between the second guiding sleeve 17 and the stationary contact 9.

In order to facilitate the observation of whether the alarm fire hydrant has water, the water inlet joint 3 is provided with a display window 21, the display window 21 is connected with the floating ball cylinder 5, and the display window 21 is provided with a fire water display buoy 22, and the appearance of the fire water display buoy 22 is In red, the display window 21 is provided with a see-through mirror 23, which is located in the upper half 24 of the display window 21, the upper half 24 of the display window 21 being transparent, and the lower half 25 of the display window 21 being opaque. When the alarm fire hydrant has water, the fire water enters the display window 21 from the water inlet connector 3, and the fire water display buoy 22 of the display window 21 floats to the upper half 24 of the display window 21, and can pass through the perspective mirror 23 The floating fire water is seen to display the buoy 22, thereby judging that the alarm hydrant has water. When the alarm hydrant is broken, the fire water display buoy 22 of the display window 21 drops to the lower half 25 of the display window 21 as the water level drops, and the floating fire water display buoy 22 cannot be seen through the perspective mirror 23, thereby judging The alarm fire hydrant is waterless.

In order to enable the float ball 6 to float in the float cylinder 5, the total weight of the float ball 6, the first guide rod 7, the movable contact 8, and the fire water display buoy 22 is smaller than that of the float ball 6 in the float cylinder 5 Buoyancy. In order to ensure the lifting and lowering of the fire water display buoy 22 in the display window 21, the shape of the fire water display buoy 22 is spherical, the cross-sectional area of the fire water display buoy 22 is smaller than the cross-sectional area of the display window 21, and the radius of the fire water display buoy 22 is smaller than the display. The length and width of the cross section of the window 21. The center line of the float cylinder 5 is the same as the center line of the first guide rod 7, the center line of the first guide rod 7 is the same as the center line of the first guide sleeve 15, and the center line of the first guide sleeve 15 is perpendicular to the horizontal line.

In order to control the alarm of the speaker 12 and the alarm lamp 13, the controller 11 is provided with a start button 26 of the controller 11, and the controller 11 is pressed to enter the working state by pressing the start button 26, and the controller 11 is provided with an alarm cancel button 27, and the alarm is cancelled by pressing At the button 27, the alarm is released, the speaker 12 stops sounding, and the alarm lamp 13 stops flashing.

In order to implement a dynamic fit sealing connection between the first guiding rod 7 and the first guiding sleeve 15, the first guiding sleeve 15 is sealingly connected with the sealing member 16, and the sealing member 16 is in a dynamic matching sealing connection with the first guiding rod 7.

In order to ensure that the float ball 6 can automatically descend when water is absent, the frictional force of the first guide rod 7 and the seal member 16 is smaller than the total gravity of the float ball 6, the first guide rod 7, the movable contact 8, and the fire water display buoy 22.

Claims

The alarm fire hydrant includes a drain valve (1) and a fire joint (2), characterized in that: the water inlet joint (3) of the drain valve (1) is provided with an alarm device (4), and an alarm device (4) Including float cylinder (5), float (6), first guide (7), moving contact (8), static contact (9), switch box (10), controller (11), speaker (12) and the warning light (13); the water inlet joint (3) is sealed with the float cylinder (5), the water inlet joint (3) is connected with the float cylinder (5), the float cylinder (5) and the switch box (10) Connection, a spacer plate (14) is arranged between the float cylinder (5) and the switch cavity (9), the isolation plate (14) is provided with a first guide sleeve (15), and the first guide sleeve (15) is provided There is a seal (16); the movable contact (8) is located in the switch box (10), the movable contact (8) is connected to one end of the first guide rod (7), and the other end of the first guide rod (7) is The floating ball (6) is connected, the first guiding rod (7) is mechanically and sealingly connected with the first guiding sleeve (15), the floating ball (6) is located in the floating ball cylinder (5); the moving contact (8) and the first The guide rod (7) is insulated, the static contact (9) is installed in the switch box (10), the static contact (9) is located above the movable contact (8), and the controller (11) passes the control line and the static contact (9), moving contact (8), speaker (12) and warning light (13) connection.
The alarm fire hydrant according to claim 1, characterized in that: the switch box (10) is provided with a second guide sleeve (17), and the second guide sleeve (17) and the switch box (10) are insulated from each other. The contact (9) is connected with a second guiding rod (18), the second guiding rod (18) passes through the second guiding sleeve (17), and the second guiding rod (18) is mechanically coupled with the second guiding sleeve (17) The second guiding rod (18) is provided with a limiting meson (19), the diameter of the limiting meson (19) is larger than the aperture of the second guiding sleeve (17), and the second guiding sleeve (17) and the static contact (9) There is a spring (20) between them.
The alarm fire hydrant according to claim 1, characterized in that: the water inlet joint (3) is provided with a display window (21), and the display window (21) is connected with the floating ball cylinder (5), and the display window (21) There is a fire water display buoy (22), a display window (21) is provided with a see-through mirror (23), and a see-through mirror (23) is located at the upper half (24) of the display window (21), and the display window (21) The upper half (24) is transparent and the lower half (25) of the display window (21) is opaque.
The alarm fire hydrant according to claim 3, wherein the fire water display buoy (22) has a spherical shape, and the fire water display buoy (22) has a cross-sectional area smaller than a cross-sectional area of the display window (21). The fire water display buoy (22) has a radius smaller than the length and width of the cross section of the display window (21).
The alarm hydrant according to claim 1, wherein said controller (11) The start button (26) of the controller (11) is provided, the controller (11) is pressed to enter the working state by pressing the start button (26), and the controller (11) is provided with an alarm cancel button (27).
The alarm fire hydrant according to claim 1, characterized in that: the center line of the floating ball cylinder (5) is the same as the center line of the first guide rod (7), and the center line of the first guide rod (7) Like the centerline of the first guide sleeve (15), the centerline of the first guide sleeve (15) is perpendicular to the horizontal line.
The alarm fire hydrant according to claim 1, wherein the first guide sleeve (15) is sealingly connected with the sealing member (16), and the sealing member (16) is dynamically matched with the first guiding rod (7). connection.