Quick-opening indoor fire hydrant

Abstract

This utility model relates to the field of indoor fire hydrant technology and discloses a quick-opening indoor fire hydrant, including a fire hydrant box, a valve body, a fire nozzle, and a fire hose installed inside the fire hydrant box. The valve body is equipped with an inlet pipe and an outlet pipe connected to the fire pipeline network. This quick-opening indoor fire hydrant, through the design of a lever-operated quick-opening mechanism, allows the operator to simply move the limiting plate away from the rust-proof metal part above the fixed valve stem and then press down the operating lever. Utilizing the lever principle, the connecting block and fixing parts convert a small operating force into sufficient lifting force, quickly raising the valve stem and valve disc to achieve rapid opening of the fire hydrant. This eliminates the need to memorize the rotation direction, allowing for instinctive operation even in tense environments, greatly shortening the fire response time. The simple and labor-saving operation effectively overcomes the shortcomings of traditional handwheel fire hydrants, which are slow, laborious, and prone to operational errors due to tension in emergency situations.

Description

Technical Field

[0001] This utility model relates to the field of indoor fire hydrant technology, and in particular to a quick-opening indoor fire hydrant. Background Technology

[0002] Indoor fire hydrants are fixed indoor fire protection facilities that supply water to the fire scene through indoor pipe networks. They are equipped with valves and are typically installed in fire hydrant boxes and used in conjunction with fire hoses and nozzles.

[0003] Traditional indoor fire hydrants typically use a handwheel-driven rotary opening and closing mechanism. Rotating the handwheel moves the valve stem and valve disc up and down, thus opening or closing the valve. However, in an emergency fire, operators may forget the direction of rotation due to nervousness, or need to rotate it multiple times to fully open the hydrant, delaying valuable firefighting time. In addition, operating the handwheel requires a certain amount of strength and time, which may be difficult for people with less strength or who are in a state of panic, hindering the speed of opening indoor fire hydrants. Utility Model Content

[0004] (a) Technical problems to be solved The purpose of this invention is to provide a quick-opening indoor fire hydrant to solve the problem mentioned in the background art of the inconvenience in improving the speed of opening indoor fire hydrants.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a quick-opening indoor fire hydrant, comprising a fire hydrant box, a valve body disposed inside the fire hydrant box, a fire nozzle, and a fire hose. The valve body is provided with an inlet pipe and an outlet pipe connected to the fire hydrant network, and a valve disc disposed inside the valve body. A fixed base is fixedly connected to the valve body, and the fixed base is provided with a lever-type quick-opening mechanism for quickly lifting the valve disc. The outlet pipe is provided with a protective component for mitigating water flow pressure. The lever quick-opening mechanism includes a support rod fixedly connected to a fixed base. The top end of the support rod is movably connected to a connecting block via a connecting column one. The front end of the connecting block is movably connected to a fixing member via a connecting column two. The bottom end of the fixing member is fixedly connected to a valve stem. The valve stem is connected to a valve disc. One end of the connecting block is fixedly connected to an operating rod. The protective component includes a hollow column connected to the water outlet pipe by fasteners, and the hollow column is provided with a rubber bladder inside.

[0006] As a further embodiment of this utility model, two opposing stroke seals are fixedly sleeved on the surface of the valve stem, and rust-proof metal parts are fixedly connected to the stroke seals.

[0007] As a further embodiment of this utility model, the connecting block has two connecting holes for penetrating the first connecting post and the second connecting post, and the inner wall of the connecting hole is provided with a damping rubber liner.

[0008] As a further embodiment of this utility model, a limiting side plate is fixedly connected to the valve body in the direction opposite to the fixed base. A locking bolt is threaded onto the limiting side plate, and one end of the locking bolt is fixedly connected to the limiting plate. The limiting plate is used to fix the rust-proof metal parts above the valve stem when the valve disc is closed.

[0009] As a further embodiment of this utility model, air is filled between the hollow column and the rubber bladder, the rubber bladder physically isolates the air from the water, and the bottom of the rubber bladder is provided with an inlet for water to flow in.

[0010] As a further embodiment of this invention, the connection between the water outlet pipe and the hollow column is made by bolts and sealed by a sealing ring.

[0011] As a further embodiment of this utility model, the outlet of the water pipe is connected to a quick-connect interface for quickly connecting fire hoses.

[0012] As a further embodiment of this utility model, a sealing element is fixedly connected to the outer periphery of the valve disc, and the sealing element is used to seal the water inlet in the valve body.

[0013] (III) Beneficial Effects This utility model provides a quick-opening indoor fire hydrant, which has the following beneficial effects: 1. This quick-opening indoor fire hydrant, through its lever-operated quick-opening mechanism, allows the operator to simply move the limit plate away from the rust-proof metal part above the fixed valve stem, and then press down the operating lever. Utilizing the lever principle, the connecting block and fixing parts convert a small operating force into sufficient lifting force, quickly raising the valve stem and valve disc to achieve rapid opening of the fire hydrant. This eliminates the need to memorize the rotation direction, allowing for instinctive operation even in tense environments. It significantly shortens fire response time, is simple and labor-saving to operate, and effectively overcomes the shortcomings of traditional handwheel-type fire hydrants, which are slow, laborious, and prone to operational errors due to tension in emergency situations.

[0014] 2. This quick-opening indoor fire hydrant, through the setting of protective components, allows the air sealed between the hollow column and the rubber bladder to be filled by high-pressure water flow the instant the valve is suddenly opened. Utilizing the compressibility of air, it effectively absorbs and buffers the impact energy of the water flow, thereby mitigating the sudden impact of the water flow on the fire hose and the operator's hands. This improves the stability and safety of the equipment. Simultaneously, the rubber bladder physically isolates the air from the water, solving the problem of air dissolving in water and causing air chamber failure, ensuring the longevity of the buffering effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the valve body disassembled according to the present invention; Figure 3 This is a schematic diagram of the lever quick-opening mechanism of this utility model; Figure 4 This utility model Figure 2 Enlarged view of point A in the middle; Figure 5 This utility model Figure 2 Enlarged view of section B in the middle.

[0016] In the diagram: 1. Fire hydrant box; 2. Valve body; 3. Fire nozzle; 4. Fire hose; 5. Inlet pipe; 6. Outlet pipe; 7. Valve disc; 8. Fixed base; 9. Lever quick-opening mechanism; 901. Support rod; 902. Connecting column one; 903. Connecting block; 904. Connecting column two; 905. Fixing component; 906. Valve stem; 907. Operating lever; 10. Protective component; 1001. Hollow column; 1002. Rubber bladder; 11. Stroke seal; 12. Rust-proof metal part; 13. Damping rubber liner; 14. Limiting side plate; 15. Locking bolt; 16. Limiting plate; 17. Quick-connect interface. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1 to 5 This utility model provides a technical solution: a quick-opening indoor fire hydrant, including a fire hydrant box 1, a valve body 2, a fire nozzle 3, and a fire hose 4 installed inside the fire hydrant box 1. The valve body 2 is provided with an inlet pipe 5 and an outlet pipe 6 connected to the fire pipeline network, and a valve disc 7 installed inside the valve body 2. The outlet of the outlet pipe 6 is connected to a quick-connect interface 17 for quickly connecting the fire hose 4. A sealing element is fixedly connected to the outer periphery of the valve disc 7. The sealing element is used to seal the water inlet inside the valve body 2. A fixed base 8 is fixedly connected to the valve body 2. The fixed base 8 is provided with a lever quick-opening mechanism 9 for quickly lifting the valve disc 7. A protective component 10 is provided on the outlet pipe 6 to alleviate the pressure of the water flow. The lever quick-opening mechanism 9 includes a support rod 901 fixedly connected to the fixed base 8. The top end of the support rod 901 is movably connected to a connecting block 903 via a connecting post 1 902. The front end of the connecting block 903 is movably connected to a fixing member 905 via a connecting post 2 904. The bottom end of the fixing member 905 is fixedly connected to a valve stem 906, which is connected to a valve disc 7. One end of the connecting block 903 is fixedly connected to an operating rod 907. The protective component 10 includes a hollow column 1001 connected to the water outlet pipe 6 by fasteners, and a rubber bladder 1002 is disposed inside the hollow column 1001.

[0019] Two opposing stroke seals 11 are fixedly sleeved on the surface of the valve stem 906. A rust-proof metal part 12 is fixedly connected to the stroke seal 11. The stroke seal 11 and the rust-proof metal part 12 can seal the valve stem 906 when it is opened and closed, preventing high-pressure water inside the valve body 2 from leaking along the valve stem 906. At the same time, it can improve the corrosion resistance of the valve stem 906 and extend its service life.

[0020] The connecting block 903 has two connecting holes for connecting post 1 902 and connecting post 2 904 to pass through. The inner wall of the connecting hole is provided with a damping rubber liner 13. The damping rubber liner 13 reduces the friction, noise and wear caused by direct metal contact between connecting post 1 902 and connecting post 2 904, making the lever mechanism move more smoothly, absorbing some vibration, and improving the operating feel and the durability of the parts.

[0021] A limiting side plate 14 is fixedly connected to the valve body 2 in the direction opposite to the fixed base 8. A locking bolt 15 is threaded onto the limiting side plate 14. One end of the locking bolt 15 is fixedly connected to a limiting plate 16. The limiting plate 16 is used to fix the rust-proof metal part 12 above the valve stem 906 when the valve disc 7 is closed. Through the setting of the limiting side plate 14, the locking bolt 15 and the limiting plate 16, the valve stem 906 and the rust-proof metal part 12 connected thereto can be mechanically fixed when not in use, preventing the valve from being opened accidentally due to accidental contact or vibration, thus enhancing the daily safety and reliability of the equipment.

[0022] Air is filled between the hollow column 1001 and the rubber bladder 1002. The rubber bladder 1002 physically isolates the air from the water. The bottom of the rubber bladder 1002 is provided with an inlet for water to enter. The connection between the outlet pipe 6 and the hollow column 1001 is made by bolts and sealed by a sealing ring. The cooperation between the hollow column 1001 and the internal rubber bladder 1002 creates a durable, maintenance-free buffer chamber. When the valve is opened, the deformation of the rubber bladder 1002 absorbs the pulse kinetic energy of the high-pressure water flow, thereby stabilizing the system pressure and protecting downstream equipment and interfaces.

[0023] In this invention, the working steps of the device are as follows: First step: When using the fire hydrant, the operator loosens the locking bolt 15, so that the limit plate 16 is away from the rust-proof metal part 12 above the fixed valve stem 906. The operator presses down the operating rod 907 of the lever quick-opening mechanism 9. The operating rod 907 rotates around the first connecting column 902 through the connecting block 903. At the same time, the second connecting column 904 pulls the fixing part 905 and the valve stem 906 to move vertically upward, thereby quickly raising the valve disc 7 and opening the valve. The high-pressure water flows into the outlet pipe 6 after entering through the inlet pipe 5. The second step: When the high-pressure water flows into the outlet pipe 6, a portion of the water flows into the rubber bladder 1002 of the protective component 10. The rubber bladder 1002 deforms, absorbing and buffering the initial huge force of the water flow. The buffered and stable water flow enters the fire hose 4 and fire nozzle 3 through the quick-connect interface 17.

[0024] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-opening indoor fire hydrant, comprising a fire hydrant box (1), a valve body (2) disposed inside the fire hydrant box (1), a fire nozzle (3), and a fire hose (4), characterized in that: The valve body (2) is provided with an inlet pipe (5) and an outlet pipe (6) for connecting the fire protection pipe network, as well as a valve disc (7) inside the valve body (2). A fixed base (8) is fixedly connected to the valve body (2). A lever quick-opening mechanism (9) for quickly lifting the valve disc (7) is provided on the fixed base (8). A protective component (10) for relieving water flow pressure is provided on the outlet pipe (6). The lever quick-opening mechanism (9) includes a support rod (901) fixedly connected to a fixed base (8). The top end of the support rod (901) is movably connected to a connecting block (903) via a connecting column one (902). The front end of the connecting block (903) is movably connected to a fixing member (905) via a connecting column two (904). The bottom end of the fixing member (905) is fixedly connected to a valve stem (906). The valve stem (906) is connected to a valve disc (7). One end of the connecting block (903) is fixedly connected to an operating rod (907). The protective component (10) includes a hollow column (1001) connected to the water outlet pipe (6) by fasteners, and a rubber bladder (1002) is provided inside the hollow column (1001).

2. The quick-opening indoor fire hydrant according to claim 1, characterized in that: Two opposing stroke seals (11) are fixedly sleeved on the surface of the valve stem (906), and a rust-proof metal part (12) is fixedly connected to the stroke seal (11).

3. The quick-opening indoor fire hydrant according to claim 1, characterized in that: The connecting block (903) has two connecting holes for connecting the first connecting post (902) and the second connecting post (904) to pass through, and the inner wall of the connecting hole is provided with a damping rubber liner (13).

4. A quick-opening indoor fire hydrant according to claim 1, characterized in that: A limiting side plate (14) is fixedly connected to the valve body (2) in the direction opposite to the fixed base (8). A locking bolt (15) is threaded onto the limiting side plate (14). One end of the locking bolt (15) is fixedly connected to a limiting plate (16). The limiting plate (16) is used to fix the rust-proof metal part (12) above the valve stem (906) when the valve disc (7) is closed.

5. A quick-opening indoor fire hydrant according to claim 1, characterized in that: The hollow column (1001) and the rubber bladder (1002) are filled with air. The rubber bladder (1002) physically isolates the air from the water. The bottom of the rubber bladder (1002) is provided with an inlet for water to flow in.

6. A quick-opening indoor fire hydrant according to claim 1, characterized in that: The connection between the water outlet pipe (6) and the hollow column (1001) is made by bolts and sealed by a sealing ring.

7. A quick-opening indoor fire hydrant according to claim 1, characterized in that: The outlet of the water pipe (6) is connected to a quick-connect interface (17) for quick connection of the fire hose (4).

8. A quick-opening indoor fire hydrant according to claim 1, characterized in that: A sealing element is fixedly connected to the outer periphery of the valve disc (7), and the sealing element is used to seal the water inlet inside the valve body (2).

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