Quick connecting device for fabricated fire-fighting pipeline

By introducing reinforcement and alarm mechanisms into the fire pipeline connection device, the problem of water leakage caused by the aging of the sealing ring is solved, the sealing performance is improved and timely alarm is provided, ensuring the safe and reliable operation of fire protection facilities.

CN224397346UActive Publication Date: 2026-06-23QINGDAO RONGHAISHENG CONSTR ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO RONGHAISHENG CONSTR ENG CO LTD
Filing Date
2025-08-28
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The sealing rings of existing fire-fighting pipeline connection devices are prone to aging after prolonged use, leading to water leakage problems, and the existing technology fails to effectively remind users to deal with them in a timely manner.

Method used

A prefabricated quick-connect device for fire-fighting pipelines was designed. The device uses a reinforcement mechanism to enhance the sealing performance through threaded caps and reinforcement rods. In case of water leakage, a bentonite and LED light bead alarm mechanism is used to remind users to deal with the leakage problem.

Benefits of technology

It improves the sealing performance of fire-fighting pipeline connections, reduces the risk of leakage, and promptly alerts users to address water seepage issues through an alarm system, ensuring safety and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembly type fire-fighting pipeline quick connecting device relates to pipeline connection technical field, including fire-fighting pipeline, be connected with left clamp head and right clamp head on the fire-fighting pipeline, be equipped with sealing ring in the left clamp head, be equipped with the installation groove on the left clamp head, install return spring in the installation groove, the spring seat is movably installed in the installation groove, the fixed mounting of reinforcing pressure rod has on the spring seat, the reinforcing mechanism still includes the threaded compression cap connected in right clamp head one side, be connected with alarm mechanism on the threaded compression cap, be equipped with thread on the left clamp head, the threaded compression cap is connected on the left clamp head through thread, the spring seat is movably installed on the left clamp head through the installation groove. This assembly type fire-fighting pipeline quick connecting device, reinforcing mechanism can promote the sealing performance of left clamp head and right clamp head connection, and alarm mechanism can remind user and handle the water seepage problem in time.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, specifically a prefabricated fire protection pipeline quick connection device. Background Technology

[0002] Fire protection piping is an important component of fire protection facilities within buildings. It is typically made of steel pipes, cast iron pipes, or corrosion-resistant materials, and is divided into two categories: fire hydrant system piping and automatic sprinkler system piping. Its main body is red and marked with flow direction indicators. Water pressure is maintained through a pump room or elevated water tank, and it connects to terminal equipment such as fire hydrants and sprinkler heads.

[0003] In the prior art, the authorized announcement number CN219177172U discloses a quick-connect clamp structure for fire-fighting pipelines, including a left clamp and a right clamp. A left connecting plate is installed on the right end face of the left clamp, and a right connecting plate is installed on the left end face of the right clamp. A sealing groove is formed on the inner side of the end face of the left connecting plate, and a rubber sealing strip is installed on the inner side of the end face of the right connecting plate.

[0004] Fire protection pipes can be connected using clamps. After prolonged use, the sealing ring inside the clamp will gradually age due to continuous mechanical pressure and the influence of the external environment. This aging not only manifests as hardening and brittleness of the sealing ring material, but may also lead to reduced elasticity and decreased sealing performance. In this situation, water leakage may occur at the clamp location. If users fail to detect and address this leakage in a timely manner, the leakage may gradually worsen over time, leading to more serious consequences. Therefore, a prefabricated quick-connect device for fire protection pipes is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a prefabricated fire-fighting pipeline quick connection device to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated fire-fighting pipeline quick connection device, including a fire-fighting pipeline, a left clamp and a right clamp connected to the fire-fighting pipeline, a sealing ring provided inside the left clamp, an installation groove provided on the left clamp, a return spring installed in the installation groove, a spring seat movably installed in the installation groove, and a reinforcing pressure rod fixedly installed on the spring seat.

[0007] Preferably, the reinforcement mechanism further includes a threaded cap connected to the side with the right clamp, and an alarm mechanism is connected to the threaded cap.

[0008] Preferably, the left card head is provided with threads, and the threaded cap is connected to the left card head by threads.

[0009] Preferably, the spring seat is movably mounted on the left clamp head via the mounting groove, the reinforcing pressure rod is movably mounted on the left clamp head via the spring seat, one end of the reset spring is connected to the end of the mounting groove, the other end of the reset spring is connected to the spring seat, and the right clamp head is restricted within the left clamp head by a threaded cap.

[0010] Preferably, the alarm mechanism includes a water pipe connected to a threaded cap, a cylinder at the end of the water pipe, an LED bead fixedly installed at the bottom of the cylinder, a button battery connected to the positive pin of the LED bead, a voltage-conducting plate fixedly installed on the negative pin of the LED bead, a sealing end cap installed at the top of the cylinder, a piston plate movably installed inside the cylinder, a thrust spring provided below the piston plate, and bentonite stored inside the cylinder.

[0011] Preferably, the sealing end cap has a connection port at its upper end, and the water pipe is connected to the sealing end cap through the connection port.

[0012] Preferably, the upper end of the cylinder is threaded, and the sealing end cap is threadedly connected to the upper end of the cylinder.

[0013] Preferably, one end of the water pipe is connected to the threaded cap, the other end of the water pipe is connected to the cylinder, one end of the thrust spring is connected to the bottom of the cylinder, and the other end of the thrust spring is connected to the piston plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this application, after the left and right clamps are tightly engaged, the threaded cap can be tightened onto the left clamp. During the tightening process of the threaded cap, the reinforcing rod will move forward. The forward-moving reinforcing rod will apply a force to the right clamp, causing the right clamp to be firmly pressed against the left clamp, thereby enhancing the sealing performance between the left and right clamps and reducing the probability of leakage.

[0016] 2. In this application, when leakage occurs, the water pipe guides the leaked water into the cylinder. The water entering the cylinder comes into contact with the bentonite, causing the bentonite to expand. This expansion pushes the piston plate downwards, pressing the upper end of the conductive plate firmly against the negative terminal of the button battery pack. This ensures that the LED light bead is powered on when leakage occurs. Furthermore, once the LED light bead is powered on, it will flash, thus reminding the user to address the leakage problem promptly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the reinforcement mechanism of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of a downward-facing alarm mechanism for practical use.

[0022] The markings in the diagram are: 1. Fire pipe; 2. Left clamp; 201. Sealing ring; 3. Right clamp; 4. Reinforcing mechanism; 401. Threaded cap; 402. Mounting groove; 403. Return spring; 404. Spring seat; 405. Reinforcing rod; 5. Alarm mechanism; 501. Water pipe; 502. Sealing end cap; 503. Cylinder; 504. Bentonite; 505. Piston plate; 506. Conductive sheet; 507. Thrust spring; 508. LED light bead; 509. Button battery pack. 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] Example 1: As Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a prefabricated fire-fighting pipeline quick connection device, including a fire-fighting pipeline 1, a left clamp 2 and a right clamp 3 connected to the fire-fighting pipeline 1, a sealing ring 201 provided inside the left clamp 2, and a reinforcing mechanism 4 provided on the left clamp 2 and the right clamp 3.

[0025] Specifically, when using it, first insert the right clamp 3 into the left clamp 2, and then rotate the right clamp 3 to lock the left clamp 2 and the right clamp 3 together, so as to realize the quick connection of the fire pipe 1. The reinforcement mechanism 4 can improve the sealing performance of the connection between the left clamp 2 and the right clamp 3, and the alarm mechanism 5 can remind the user to deal with the water leakage problem in time.

[0026] Example 2: Figure 2 , Figure 3 and Figure 4As shown, the reinforcement mechanism 4 includes a mounting groove 402 on the left clamp 2, a reset spring 403 installed in the mounting groove 402, a spring seat 404 movably installed in the mounting groove 402, and a reinforcement pressure rod 405 fixedly installed on the spring seat 404. The reinforcement mechanism 4 also includes a threaded cap 401 connected to the side with the right clamp 3, an alarm mechanism 5 connected to the threaded cap 401, and a thread on the left clamp 2, with the threaded cap 401 connected to the left clamp 2 by the thread.

[0027] Specifically, after the left clamp 2 and right clamp 3 are tightly engaged, the operator can further tighten the threaded cap 401 to fix it in the corresponding position on the left clamp 2. As the threaded cap 401 is gradually tightened, the reinforcing rod 405 will move forward. This forward movement of the reinforcing rod 405 will gradually apply a stable pressure to the right clamp 3, allowing it to fit more firmly against the left clamp 2. This significantly improves the sealing performance between the left clamp 2 and the right clamp 3, greatly reducing the risk of leakage at their joint, thus ensuring the safety and reliability of the entire device.

[0028] Example 3: Figure 2 and Figure 5 As shown, the alarm mechanism 5 includes a water pipe 501 connected to a threaded cap 401. A cylinder 503 is provided at the end of the water pipe 501. An LED bead 508 is fixedly installed at the bottom of the cylinder 503. A button battery pack 509 is connected to the positive pin of the LED bead 508. A voltage conductive piece 506 is fixedly installed on the negative pin of the LED bead 508. A sealing end cap 502 is installed at the upper end of the cylinder 503. A piston plate 505 is movably installed inside the cylinder 503. A thrust spring 507 is provided below the piston plate 505. Bentonite 504 is stored inside the cylinder 503. A connection port is opened at the upper end of the sealing end cap 502. The water pipe 501 is connected to the sealing end cap 502 through the connection port.

[0029] Specifically, when a leak occurs, the water pipe 501 quickly and effectively guides the leaking water into the cylinder 503. The water guided into the cylinder 503 then comes into contact with the bentonite 504 pre-placed inside. Once the bentonite 504 comes into contact with the water, it immediately expands. After expanding, the bentonite 504 generates a downward thrust, which pushes the piston plate 505 downward. As the piston plate 505 moves downward, its upper end presses down on the conductive plate 506, ultimately pressing the upper end of the conductive plate 506 tightly against the negative terminal of the button battery pack 509. In this way, when a leak occurs, the power to the LED bead 508 is turned on. After the power is turned on, the LED bead 508 will start flashing, using this obvious flashing signal to promptly alert the user to the leak and address the problem quickly to avoid potentially greater damage.

[0030] Working principle: When in use, first insert the right clamp 3 into the left clamp 2, then rotate the right clamp 3 to lock the left clamp 2 and the right clamp 3 together, realizing the quick connection of the fire pipe 1. After the left clamp 2 and the right clamp 3 are locked together, the threaded cap 401 can be tightened on the left clamp 2. During the tightening process of the threaded cap 401, the reinforcing rod 405 will move forward. The forward movement of the reinforcing rod 405 will apply pressure to the right clamp 3, so that the right clamp 3 is firmly pressed on the left clamp 2, improving the sealing performance between the left clamp 2 and the right clamp 3 and reducing the risk of leakage. In the event of a leak, the water pipe 501 will guide the leaked water into the cylinder 503. The water in the cylinder 503 will come into contact with the bentonite 504. The bentonite 504 will expand upon contact with the water, and this expansion will push the piston plate 505 downward. When the piston plate 505 moves downward, it will press the upper end of the voltage conductive piece 506 against the negative terminal of the button battery pack 509. This will activate the power supply to the LED bead 508 when water leaks, and the LED bead 508 will flash after being activated, thus reminding the user to deal with the water leak problem in time.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A prefabricated quick-connect device for fire-fighting pipelines, comprising a fire-fighting pipeline (1), wherein a left clamp (2) and a right clamp (3) are connected to the fire-fighting pipeline (1), characterized in that: The left clamp (2) is provided with a sealing ring (201), and the left clamp (2) and the right clamp (3) are provided with a reinforcing mechanism (4). The reinforcing mechanism (4) includes a mounting groove (402) opened on the left clamp (2), a reset spring (403) is installed in the mounting groove (402), a spring seat (404) is movably installed in the mounting groove (402), and a reinforcing pressure rod (405) is fixedly installed on the spring seat (404).

2. The prefabricated fire-fighting pipeline quick connection device according to claim 1, characterized in that: The reinforcement mechanism (4) also includes a threaded cap (401) connected to the side with the right clamp (3), and an alarm mechanism (5) is connected to the threaded cap (401).

3. The prefabricated fire-fighting pipeline quick connection device according to claim 2, characterized in that: The left clamp (2) is threaded, and the threaded cap (401) is threadedly connected to the left clamp (2).

4. The prefabricated fire-fighting pipeline quick connection device according to claim 3, characterized in that: The spring seat (404) is movably mounted on the left clamp (2) through the mounting groove (402). The reinforcing rod (405) is movably mounted on the left clamp (2) through the spring seat (404). One end of the reset spring (403) is connected to the end of the mounting groove (402), and the other end of the reset spring (403) is connected to the spring seat (404). The right clamp (3) is restricted in the left clamp (2) by the threaded cap (401).

5. A prefabricated fire-fighting pipeline quick connection device according to claim 4, characterized in that: The alarm mechanism (5) includes a water pipe (501) connected to a threaded cap (401), a cylinder (503) at the end of the water pipe (501), an LED bead (508) fixedly installed at the bottom of the cylinder (503), a button battery pack (509) connected to the positive pin of the LED bead (508), a voltage conductive plate (506) fixedly installed on the negative pin of the LED bead (508), a sealing end cap (502) installed at the upper end of the cylinder (503), a piston plate (505) movably installed inside the cylinder (503), a thrust spring (507) provided below the piston plate (505), and bentonite (504) stored inside the cylinder (503).

6. A prefabricated fire-fighting pipeline quick connection device according to claim 5, characterized in that: The sealing end cap (502) has a connection port at its upper end, and the water pipe (501) is connected to the sealing end cap (502) through the connection port.

7. A prefabricated fire-fighting pipeline quick connection device according to claim 6, characterized in that: The upper end of the cylinder (503) is threaded, and the sealing end cap (502) is threadedly connected to the upper end of the cylinder (503).

8. A prefabricated fire-fighting pipeline quick connection device according to claim 7, characterized in that: One end of the water pipe (501) is connected to the threaded cap (401), and the other end of the water pipe (501) is connected to the cylinder (503). One end of the thrust spring (507) is connected to the bottom of the cylinder (503), and the other end of the thrust spring (507) is connected to the piston plate (505).