A fire hydrant for fire protection engineering that is easy to connect

By installing snap-fit ​​and disassembly components on the fire hydrant, quick connection and disassembly can be achieved, solving the problem of complex and time-consuming interfaces in traditional fire hydrants and improving the practicality and safety of fire hydrants.

CN224281450UActive Publication Date: 2026-05-26HUIGU CONSTRUCTION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIGU CONSTRUCTION CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional fire hydrants have complex interfaces or poor compatibility, which leads to time-consuming pipe connections and they are prone to damage or personal injury in emergency situations.

Method used

A fire hydrant designed for easy connection employs snap-fit ​​and disassembly components, including a sliding frame, slide bar, and sleeve bar, along with a return spring, to enable quick installation and disassembly of the connecting pipe. It is also equipped with a filter screen, gasket, and sealing plate to ensure smooth water flow and a tight seal.

Benefits of technology

It significantly shortens the connection time between fire hydrants and fire-fighting equipment, seizes the golden time for early fire suppression, reduces the risk of personal injury, and improves the practicality and safety of fire hydrants.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of fire hydrant technology and discloses a fire hydrant for fire protection engineering that is easy to connect; it includes a fire hydrant body; an installation pipe connected to the inner wall of the fire hydrant body, and a connecting pipe connected to the inner wall of the installation pipe; a snap-fit ​​component located in the inner cavity of the connecting pipe; and a disassembly component provided on the outer side of the installation pipe. This utility model, by setting the snap-fit ​​component and the disassembly component, facilitates the quick installation and disassembly of the connecting pipe, which can significantly shorten the connection time between the fire hydrant and fire-fighting equipment, enabling firefighters to engage in fire-fighting work more quickly, thereby extinguishing the fire at the scene in a shorter time. This not only allows for seizing the golden time for initial fire suppression but also reduces the risk of injury to people around the scene, improving the practicality of the fire hydrant.
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Description

Technical Field

[0001] This utility model relates to the field of fire hydrant technology, specifically a fire hydrant for fire protection engineering that is easy to connect. Background Technology

[0002] A fire hydrant, formally known as a fire hose, is a fixed fire-fighting facility whose main function is to control combustibles, isolate oxidizers, and eliminate ignition sources. It is mainly used to allow fire trucks to draw water from municipal water supply networks or outdoor fire water supply networks to extinguish fires. It can also be directly connected to a hose and nozzle to extinguish fires.

[0003] Fire hydrants are directly connected to municipal water supply pipes and can quickly provide a large amount of water in the event of a fire, meeting the water needs of fire trucks, water guns and other equipment. Therefore, fire hydrants are needed when a fire occurs. However, when using traditional fire hydrant devices, when workers need to connect the device to the external water pipe, they usually need to use auxiliary tools for installation. Complex interfaces or poor compatibility can lead to time-consuming connection and missing the golden time for early fire fighting. At the same time, in emergency situations, operational errors can easily lead to interface damage or personnel injury. Utility Model Content

[0004] The purpose of this utility model is to provide a fire hydrant for fire protection engineering that is easy to connect, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire hydrant for fire protection engineering that is easy to connect, comprising:

[0006] Fire hydrant body;

[0007] An installation pipe is connected to the inner wall of the fire hydrant body, and a connecting pipe is connected to the inner wall of the installation pipe.

[0008] A snap-fit ​​assembly is located inside the connecting tube. A disassembly assembly is provided on the outside of the mounting tube. The disassembly assembly includes a movable frame that slides on the inner wall of the mounting tube. A slide rod is fixedly connected to one side of the movable frame. A sleeve rod is slidably connected to the outside of the slide rod, and one end of the sleeve rod is fixedly connected to the inner wall of the mounting tube.

[0009] Preferably, the snap-fit ​​assembly includes a sleeve fixed to the inner wall of the connecting tube, a slide tube slidably connected to the inner wall of the sleeve, and a return spring for resetting the slide tube fixedly connected to the inner wall of the sleeve.

[0010] Preferably, the inner wall of the fire hydrant body is equipped with a filter screen for filtering impurities, and multiple sets of mounting blocks are fixedly connected to the top of the filter screen, and one side of the mounting block is fixedly connected to the inner wall of the fire hydrant body by bolts.

[0011] Preferably, the inner wall of the mounting tube is fixedly connected with a sealing gasket for sealing the mounting tube, and the sealing gasket is made of nitrile rubber.

[0012] Preferably, a sealing disc is fixedly connected to the inner wall of the installation tube, and the sealing disc is made of polyvinyl chloride.

[0013] Preferably, a sealing sheet is fixedly connected to the inner wall of the mounting tube, and the sealing sheet is made of silicone rubber.

[0014] Preferably, the inner wall of the mounting tube is provided with a sliding groove for limiting the movement of the frame, and the number of sliding grooves is set to six.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, by setting up snap-fit ​​and disassembly components, facilitates the quick installation and disassembly of the connecting pipe, which can significantly shorten the connection time between the fire hydrant and the fire-fighting equipment, enabling firefighters to engage in firefighting work more quickly. This allows for firefighting at the scene in a shorter time, not only seizing the golden time for initial fire suppression but also reducing the risk of injury to people in the surrounding area, thus improving the practicality of the fire hydrant. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the fire hydrant for fire protection engineering that is easy to connect, provided by this utility model;

[0018] Figure 2 A schematic diagram of the fire hydrant body and installation pipe structure provided by this utility model;

[0019] Figure 3 Schematic diagram of the fire hydrant body and filter screen provided by this utility model;

[0020] Figure 4 A schematic diagram of the disassembly component structure provided by this utility model;

[0021] Figure 5 for Figure 2 A magnified structural diagram of point A shown.

[0022] In the diagram: 1. Fire hydrant body; 2. Installation pipe; 3. Connecting pipe; 4. Snap-fit ​​assembly; 41. Sleeve; 42. Slide pipe; 43. Return spring; 5. Disassembly assembly; 51. Moving frame; 52. Slide rod; 53. Sleeve rod; 6. Filter screen; 7. Mounting block; 8. Sealing gasket; 9. Sealing disc; 10. Sealing plate; 11. Slide groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 As shown, a fire hydrant for fire protection engineering that is easy to connect includes a fire hydrant body 1; an installation pipe 2 connected to the inner wall of the fire hydrant body 1, and a connecting pipe 3 connected to the inner wall of the installation pipe 2. By setting the fire hydrant body 1 and connecting to the municipal or fire water supply network, high-pressure water flow is directly output after the valve is opened, utilizing the constant water pressure in the pipeline. Its core component controls the opening and closing of the water flow, quickly supplying water to fire hoses or fire trucks, and achieving efficient fire extinguishing. It should be noted that the fire hydrant body 1 is existing technology and will not be described in detail here. The connection between the installation pipe 2 and the connecting pipe 3 facilitates the transportation of water from the installation pipe 2 to the connecting pipe 3, and then the water source is led out.

[0025] The snap-fit ​​assembly 4 is located inside the connecting tube 3. A disassembly assembly 5 is provided on the outside of the mounting tube 2. The disassembly assembly 5 includes a movable frame 51 that slides along the inner wall of the mounting tube 2. A slide rod 52 is fixedly connected to one side of the movable frame 51, and a sleeve rod 53 is slidably connected to the outside of the slide rod 52. One end of the sleeve rod 53 is fixedly connected to the inner wall of the mounting tube 2. The snap-fit ​​assembly 4 includes a sleeve 41 fixed to the inner wall of the connecting tube 3. A slide tube 42 is slidably connected to the inner wall of the sleeve 41, and a return spring 43 for resetting the slide tube 42 is fixedly connected to the inner wall of the sleeve 41. The inner wall of the mounting tube 2 has six sets of sliding grooves 11 for limiting the movable frame 51. By providing the movable frame 51, the slide tube 42 can be easily squeezed during movement. This forces the slide tube 42 to be pressed back to its original position. Simultaneously, the slide groove 11 limits the movement of the movable frame 51. A slide rod 52 is provided for connection with the movable frame 51. It is noted that a spring for resetting the slide rod 52 is installed on the inner wall of the sleeve rod 53. When the movable frame 51 is released, the spring's own reaction force resets the movable frame 51. The sleeve 41 facilitates the installation of the reset spring 43, and the reset spring 43's own reaction force ejects the slide tube 42 along the inner wall of the sleeve 41. When the connecting pipe 3 is inserted into the mounting pipe 2, each set of slide tubes 42 is pressed into the sleeve 41 by the inner wall of the mounting pipe 2. When passing the slide groove 11, the reset spring 43 resets and ejects the slide tube 42. Figure 5As shown, the installation of the connecting pipe 3 is completed. When it is necessary to disassemble the connecting pipe 3, the hand-held moving frame 51 is moved to the sliding pipe 42 and squeezed to the inside of the sleeve 41. It should be noted that after squeezing, the height of the sliding pipe 42 will not be higher than the inner wall of the installation pipe 2. Therefore, after releasing the limit on the sliding pipe 42, the connecting pipe 3 can be pulled away.

[0026] The inner wall of the fire hydrant body 1 is equipped with a filter screen 6 for filtering impurities. Multiple sets of mounting blocks 7 are fixedly connected to the top of the filter screen 6, and one side of the mounting block 7 is fixedly connected to the inner wall of the fire hydrant body 1 by bolts. By setting up the filter screen 6, impurities such as mud or rust in the pipe are intercepted to prevent blockage of the water outlet or damage to fire-fighting equipment, and to ensure smooth water flow. At the same time, the mounting blocks 7 make it easy to remove the bolts and disassemble the filter screen 6, avoiding the problem of the filter screen 6 becoming blocked due to long-term filtration of impurities, which would affect the normal operation of the drainage system.

[0027] The inner wall of the installation pipe 2 is fixedly connected with a sealing gasket 8 for sealing the installation pipe 2, and the sealing gasket 8 is made of nitrile rubber; the inner wall of the installation pipe 2 is fixedly connected with a sealing disc 9, and the sealing disc 9 is made of polyvinyl chloride; the inner wall of the installation pipe 2 is fixedly connected with a sealing sheet 10, and the sealing sheet 10 is made of silicone rubber; the sealing gasket 8, sealing disc 9 and sealing sheet 10 can facilitate the filling of gaps at the sliding pipe 42, prevent high-pressure water leakage, ensure water supply efficiency, resist pressure and corrosion, and use materials such as rubber and polytetrafluoroethylene to resist water pressure corrosion and extend service life.

[0028] Working principle: When connecting the connecting pipe 3, it is first inserted into the mounting pipe 2. Each set of sliding pipes 42 is squeezed into the sleeve 41 by the inner wall of the mounting pipe 2 and continues to move into the mounting pipe 2. When it passes the sliding groove 11, the sliding pipe 42 is reset and ejected by the return spring 43, and locked in place. Figure 5 As shown, this completes the installation of the connecting pipe 3. At the same time, the sealing gasket 8, sealing disc 9 and sealing plate 10 can easily fill the gap at the sliding pipe 42 to prevent high-pressure water leakage and ensure water supply efficiency. At this time, the fire hydrant can be turned on to work normally. When it is necessary to disassemble the connecting pipe 3, the hand-held moving frame 51 is moved to the sliding pipe 42 to squeeze it. Through the return spring 43, the sliding pipe 42 is squeezed into the inside of the sleeve 41, releasing the limit on the sliding pipe 42. At this time, the connecting pipe 3 can be pulled away.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] 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 fire hydrant for fire protection engineering that is easy to connect, characterized in that, include: Fire hydrant body (1); The installation pipe (2) is connected to the inner wall of the fire hydrant body (1), and the inner wall of the installation pipe (2) is connected to the connecting pipe (3). A snap-fit ​​assembly (4) is located in the inner cavity of the connecting tube (3). A disassembly assembly (5) is provided on the outer side of the mounting tube (2). The disassembly assembly (5) includes a movable frame (51) that slides on the inner wall of the mounting tube (2). A slide rod (52) is fixedly connected to one side of the movable frame (51). A sleeve rod (53) is slidably connected to the outer side of the slide rod (52), and one end of the sleeve rod (53) is fixedly connected to the inner wall of the mounting tube (2).

2. A fire hydrant for fire protection engineering that is easy to connect according to claim 1, characterized in that: The snap-fit ​​assembly (4) includes a sleeve (41) fixed to the inner wall of the connecting tube (3), a slide tube (42) slidably connected to the inner wall of the sleeve (41), and a reset spring (43) fixedly connected to the inner wall of the sleeve (41) for resetting the slide tube (42).

3. A fire hydrant for fire protection engineering that is easy to connect according to claim 1, characterized in that: The inner wall of the fire hydrant body (1) is equipped with a filter screen (6) for filtering impurities. The top of the filter screen (6) is fixedly connected to multiple sets of mounting blocks (7), and one side of the mounting block (7) is fixedly connected to the inner wall of the fire hydrant body (1) by bolts.

4. A fire hydrant for fire protection engineering that is easy to connect according to claim 1, characterized in that: The inner wall of the mounting tube (2) is fixedly connected with a sealing gasket (8) for sealing the mounting tube (2), and the sealing gasket (8) is made of nitrile rubber.

5. A fire hydrant for fire protection engineering that is easy to connect according to claim 1, characterized in that: The inner wall of the installation tube (2) is fixedly connected to a sealing disc (9), and the sealing disc (9) is made of polyvinyl chloride.

6. A fire hydrant for fire protection engineering that is easy to connect according to claim 1, characterized in that: The inner wall of the mounting tube (2) is fixedly connected with a sealing sheet (10), and the sealing sheet (10) is made of silicone rubber.

7. A fire hydrant for fire protection engineering that is easy to connect according to claim 1, characterized in that: The inner wall of the mounting tube (2) is provided with a sliding groove (11) for limiting the movement frame (51), and the number of sliding grooves (11) is set to six.