Water supply coupling joint for joint fire fighting system

Abstract

The application relates to the technical field of fire-fighting equipment, in particular to a water supply coupling joint for a joint fire-fighting system. The water supply coupling joint for the joint fire-fighting system comprises a tee body, a male joint threadedly connected to the inlet and outlet of the tee body, a female joint used for connecting with a water supply pipe belt, the male joint is inserted into the female joint to realize connection, a check valve piece for preventing backflow is arranged in the tee body at the inlet, and the check valve piece is opened under the impact of water flow. In order to ensure the reliability of the connection of the male joint and the female joint, an insertion part of the male joint is provided with a locking ring groove, the female joint is provided with a locking structure, the locking structure comprises a movable locking pin, a thrust ring for pushing the locking pin to insert into the locking ring groove and a locking ring for locking the thrust ring. The utility model provides a water supply coupling joint for a joint fire-fighting system, the water supply coupling joint connects the water supply pipe belt to realize the series connection of a fire truck and a concrete pump truck, and high-rise fire-fighting guarantee in an area without a high-altitude fire pump truck is realized.

Description

Technical Field

[0001] This application relates to the field of fire-fighting equipment technology, and in particular to a water supply coupling connector for a joint fire-fighting system. Background Technology

[0002] In recent years, high-rise residential buildings have sprung up like mushrooms across the country, even in small counties. However, county-level finances often lack sufficient resources to support the purchase and maintenance of high-rise fire pump trucks, which can cost millions of yuan. Fire hazards in high-rise buildings frequently become a major challenge for fire safety in small counties.

[0003] On the other hand, as a vital force in ensuring the safety of people's lives and property, the joint support mechanism for fire and rescue operations has received significant attention in many cities. Multiple departments, including the Public Security Bureau, Ecology and Environment Bureau, Natural Resources Bureau, Transportation Bureau, Water Resources Bureau, Commerce Bureau, Health Commission, Emergency Management Bureau, Urban Management Bureau, Meteorological Bureau, and Fire and Rescue Brigade, coordinate and dispatch resources to ensure that in the event of a disaster, various support forces and materials can be mobilized immediately to participate in coordinated operations, providing solid logistical support for frontline fire and rescue personnel. In the actual execution of firefighting operations, maximizing the use of available equipment and supplies within the area is paramount to the effective implementation of the joint firefighting system. Utility Model Content

[0004] The purpose of this application is to provide a water supply coupling connector for connecting a fire pump truck and a concrete pump truck to achieve spraying operations.

[0005] The water supply coupling connector for the joint fire protection system includes a tee body, a male connector threaded to the inlet and outlet of the tee body, and a female connector for connecting to the water supply pipe. The male connector is inserted into the female connector to achieve connection. The inlet of the tee body is also equipped with a check valve to prevent backflow. The check valve opens under the impact of water flow.

[0006] To ensure the reliability of the connection between the male and female connectors, the male connector has a locking ring groove at its insertion part, and the female connector has a locking structure. The locking structure includes a movable locking pin, a thrust ring that pushes the locking pin into the locking ring groove, and a locking ring that tightens the thrust ring. To ensure the sealing of the connection between the male and female connectors, a sealing ring is also provided at the front of the male connector. During the process of the locking ring tightening the thrust ring, the locking pin is inserted into the locking ring groove. The contact surface between the locking ring groove and the locking pin is inclined. During the process of pressing the locking pin, the male connector is inserted into the female connector and presses the sealing ring.

[0007] Beneficial effects This utility model provides a water supply coupling connector for a joint fire protection system. This connector connects a water supply pipe to enable series connection of fire trucks and concrete pump trucks, providing fire protection for high-rise buildings in areas without aerial fire pump trucks. The water supply coupling connector offers reliable connection, good sealing, and is not easily detached during towing operations. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of an embodiment of the present application used in a component-based joint fire protection system.

[0009] Figure 2 This is the front view of an embodiment of this application.

[0010] Figure 3 This is a perspective view of the assembled tee body and male connector according to an embodiment of this application.

[0011] Figure 4 This is a cross-sectional view of the male and female connectors of the water supply coupling connector for the joint fire protection system in this embodiment of the application after locking.

[0012] Figure 5 This is a partially enlarged cross-sectional view of the male and female connectors of the water supply coupling connector for the joint fire protection system in the embodiments of this application after locking.

[0013] Figure 6 This is a partial enlarged view of the locking mechanism of the male and female connectors of the water supply coupling joint for the joint fire protection system in this embodiment of the application after unlocking.

[0014] Figure 7 This is a schematic diagram of the female connector of the water supply coupling connector for the joint fire protection system in this application embodiment.

[0015] Figure 8 yes Figure 4 Cross-sectional view of section AA.

[0016] Figure 9 This is a schematic diagram of the sprinkler head in the joint fire protection system in the embodiments of this application. Detailed Implementation

[0017] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0018] Figure 1 This is a schematic diagram of the entire joint fire protection system. When using this technical solution for high-rise fire protection operations, the pump outlets of the two fire pump trucks are connected to water supply pipes, which are then connected to the water supply coupling connector 1 of the joint fire protection system. The water supply coupling connector 1 of the joint fire protection system has two inlet ends (see...). Figure 3 The two below are the inlet ends, and one is the outlet end (see...). Figure 3The outlet end of the water supply coupling connector for the joint fire protection system is located above the water supply coupling connector. The outlet end of the joint fire protection system water supply coupling connector is connected to the inlet of the aerial concrete pump truck via a water supply pipe. The aerial concrete pump truck pressurizes and pumps the fire water through its onboard pump, which is then transported through the pumping pipeline to the variable jet fire sprinkler head (see...). Figure 9 This enables high-rise fire suppression using water spraying.

[0019] The variable jet fire sprinkler in this example is existing technology.

[0020] The water supply coupling connector 1 for the joint fire protection system in this embodiment includes a "Y"-shaped tee body 1a, a male connector 1b, and a female connector 1c. The male connector is threaded onto the tee body 1a, and the female connector 1c is tied to the end of the water supply pipe. The male connector 1b is inserted into the female connector 1c to connect the water supply pipe to the water supply coupling connector 1 for the joint fire protection system. Figure 1 As shown, three water supply pipes and one water supply coupling connector 1 connect two fire pump trucks and one high-altitude concrete pump truck. The fire pump trucks pump fire water to the high-altitude concrete pump truck, which then pumps the water to the high altitude for spraying operations.

[0021] The reason for using a three-way connector is to allow for flexible switching of fire pump trucks. Generally, fire pump trucks operate on a "one in use, one on standby" basis (multi-way connectors can also be used, depending on actual needs). One truck is in operation, while the other is on standby. The pumping vehicle is switched according to the water storage capacity in the truck to ensure a continuous and sufficient water supply. If there are fire hydrants at the fire scene, the hydrants can be directly connected to one fire pump truck to supply water, eliminating the need to start the other. However, considering that there may not be fire water available at the fire scene, using onboard fire water becomes the only option. In this case, the "one in use, one on standby" configuration ensures a continuous water supply from the concrete pump truck (one fire pump truck supplies water, while the other is replenished nearby as a backup, and so on).

[0022] To ensure that backflow does not occur during water supply in the "one in use, one standby" mode (i.e., water flows from one inlet end to the other), the inlet of the tee body 1a is also equipped with a check valve to prevent backflow (see...). Figure 2 The check valve opens under the impact of water flow. Specifically, the three-way body 1a has a shaft 1a3, on which two check valve plates 1a1 are movably hinged, and a return spring 1a2 is provided between the two check valve plates. Under the action of the return spring 1a2, the check valve plate 1a2 remains closed at the inlet end; if water flows in from the inlet end, the check valve plate 1a2 opens, allowing water to flow from the inlet end to the outlet end, but the check valve plate 1a2 at the other inlet end remains closed (due to the action of the spring and the water flow).

[0023] See Figure 4 , Figure 5 , Figure 6 To ensure the reliability of the connection between the male connector 1b and the female connector 1c, the front of the male connector is provided with an annular locking groove 1b3, the cross-section of which is trapezoidal; the female connector 1c is provided with a locking structure, which includes a locking pin 1c5 that can move up and down (see...). Figure 5 ), push ring 1c2 that pushes locking pin 1c5 into locking ring groove 1b3 and locking ring 1c3 that locks push ring 1c2 (see Figure 6 The front part of the female connector 1c is tubular, and its outer circumferential surface has at least one set of straight grooves 1c6 arranged radially opposite to each other along the tube body (see...). Figure 7 The front of the straight groove 1c6 does not penetrate the front of the female connector, but the tail of the straight groove 1c6 penetrates the female connector to form a through hole, and the locking pin 1c5 is installed in the through hole. The thrust ring 1c2 is fitted onto the front of the female connector, and the inner side of the thrust ring 1c2 is provided with a helical tooth 1c21 (see...). Figure 6 The helical tooth 1c21 and the locking pin 1c5 have a mating surface that cooperates with each other. During the movement of the thrust ring 1c2, the helical tooth 1c21 presses against the locking pin 1c5 and inserts the locking pin 1c5 into the locking ring groove 1b3, thereby locking the male connector 1b and the female connector 1c.

[0024] like Figure 6 As shown, the locking pin 1c5 is hollow, and the fixed shaft is installed in the through hole. In order to ensure that the locking pin 1c5 does not rotate when it moves up and down, the fixed shaft has parallel sliding surfaces on both sides that cooperate with the inner hole of the locking pin 1c5.

[0025] Of course, in order to lock the thrust ring, the front outer circumferential surface of the female connector 1c is also threaded, and the inner side of the locking ring is provided with an internal thread that matches the thread on the outer circumferential surface of the female connector. Tightening the locking ring causes the helical teeth of the thrust ring to squeeze the locking pin into the locking ring groove and lock it.

[0026] To ensure a tight seal between the male connector 1b and the female connector 1c, a sealing ring 1c6 is provided at the front of the male connector 1b. Figure 6 (The black part at the front of the male connector), during the process of locking the thrust ring 1c2 by the locking ring 1c3, the locking pin 1c5 is inserted into the locking ring groove 1b3, and the contact surface between the locking ring groove and the locking pin is an inclined surface (see...). Figure 6 During the process of pressing the locking pin 1c5, the male connector 1b is inserted into the female connector 1c and the sealing ring 1c6 is pressed.

[0027] In this example, the three-way body can also be made into a four-way or multi-channel body. The number of inlet ends can be made according to actual needs, as long as unidirectional conduction can be achieved.

[0028] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A water supply coupling connector for a joint fire protection system, characterized in that: It includes a tee body, a male connector threaded to the inlet and outlet of the tee body, and a female connector for connecting to a water supply pipe. The male connector is inserted into the female connector to achieve connection. The inlet of the tee body is also equipped with a check valve to prevent backflow. The check valve opens under the impact of water flow.

2. The water supply coupling connector for the joint fire protection system according to claim 1, characterized in that: The male connector has a locking ring groove at the front, and the female connector has a locking structure. The locking structure includes a movable locking pin, a thrust ring that pushes the locking pin into the locking ring groove, and a locking ring that locks the thrust ring.

3. The water supply coupling connector for the joint fire protection system according to claim 2, characterized in that: The male connector is also provided with a sealing ring at the front. During the process of locking the thrust ring, the locking pin is inserted into the locking ring groove. The contact surface between the locking ring groove and the locking pin is an inclined surface. During the process of pressing the locking pin, the male connector is inserted into the female connector and presses the sealing ring.

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