Connector for fire detection
By designing a fire detection connector with a rotary adjustment handle and linkage plate structure, the problem of accidental opening of the adjustment handle was solved, achieving a stable connection and sealing, and improving the efficiency and safety of fire water pressure testing.
Patent Information
- Application Number
- CN202423276372.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing adjustment handle design of the fire detection connector has a safety hazard. It is easy to accidentally open it, causing a sudden release of water, which will affect the detection process and pose a safety threat.
A connector for fire detection was designed. By rotating the adjustment handle, the movable plate of the positioning plate is pulled, which in turn moves the linkage plate and the locking strip, so that the locking strip and the adjustment handle are engaged to ensure the connector is stable. A sealing ring is provided to improve the sealing performance and prevent accidental opening.
It improves the efficiency and safety of fire water pressure testing, avoids sudden water release, and enhances the accuracy and safety of testing.
Smart Images

Figure CN223831664U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fire protection testing technology, and specifically relates to a connector for fire protection testing. Background Technology
[0002] Fire testing connectors play a crucial role in fire safety. They connect fire-fighting equipment, ensuring rapid and effective firefighting operations in emergencies. These connectors have wide applications in fire protection systems. For example, in fire hydrant system pressure testing devices, connectors connect the hydrant outlet to the testing device to measure the static water pressure and outlet pressure of the hydrant, and to verify the effective water jet from the fire hose. Furthermore, connectors also play a vital role in fire drills and actual firefighting operations.
[0003] Fire testing connectors, commonly used to connect fire hoses, fire trucks, fire hydrants, and nozzles, are indispensable components of fire protection systems. Their primary function is to ensure a tight, leak-free connection between the fire water source and the firefighting equipment, thereby guaranteeing effective firefighting operations. Because performance testing of fire hoses is required, specialized connectors must be used. Once the connector is securely connected to the fire hose, operators can precisely test the fire water pressure by manipulating a carefully designed adjustment handle. However, it is worth noting that the adjustment handle design of some fire testing connectors currently on the market poses a safety hazard. These handles are often designed for haphazard operation, making it easy for operators to accidentally open the connector, potentially leading to sudden water release, pressure loss, and other adverse situations. This not only disrupts the normal testing process but also poses a potential safety threat to personnel and equipment on site. Utility Model Content
[0004] The purpose of this invention is to provide a connector for fire hose testing, aiming to solve the problem that a special connector must be used for connecting fire hoses when performance testing is required. Once the connector is securely connected to the fire hose, the operator can accurately test the fire hose pressure by manipulating a carefully designed adjustment handle. However, it is worth noting that the adjustment handle design of some fire hose testing connectors currently on the market has safety hazards. They are often designed for arbitrary operation, which makes it easy for operators to accidentally open the testing connector, potentially causing adverse situations such as sudden water release and pressure loss. This not only interferes with the normal testing process but also poses a potential safety threat to on-site personnel and equipment.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire detection connector, comprising a water pipe connector and a mating rack installed on the bottom surface of the water pipe connector, wherein a detection tube is connected to one end of the water pipe connector relative to the mating rack, a pressure gauge is installed on the surface of the detection tube, a nozzle is connected to one end of the detection tube relative to the water pipe connector, and an adjustment handle is connected to the surface of the nozzle;
[0006] A positioning plate is connected to the side of the nozzle near the adjustment handle. A movable plate is connected to one opening of the positioning plate. A linkage plate is connected to one end of the movable plate. A linkage spring is connected to the side of the linkage plate near the movable plate. A locking strip is connected to the other side of the linkage plate.
[0007] To facilitate locking the adjustment handle, as a connector for fire testing according to this utility model, preferably, the movable plate passes through the positioning plate and extends to the inner wall of the positioning plate, and the nozzle is threadedly connected to the top of the pressure test gauge.
[0008] To facilitate the movement of the locking insert, as a connector for fire detection in this utility model, preferably, one end of the linkage spring relative to the linkage plate is connected to the inner wall of the positioning plate, and the linkage spring and the linkage plate form an elastic telescopic structure.
[0009] In order to allow the locking strip to smoothly disengage from the recess, as a connector for fire detection in this utility model, preferably, the end of the adjusting handle near the locking strip is provided with a locking hole, and the locking strip and the locking hole at one end of the adjusting handle form a fitting structure.
[0010] To improve the sealing performance of the fire-fighting connector, as a fire-fighting testing connector of this utility model, preferably, a sealing ring is connected to the inner wall of the bottom opening of the water pipe connector, and the sealing ring is made of silicone.
[0011] To facilitate the positioning and docking of the sealing ring, as a fire detection connector of this utility model, preferably, the inner wall of the water pipe connector near the sealing ring is provided with a sealing ring groove, and the sealing ring is interference-fitted with the sealing ring groove at the bottom opening of the water pipe connector.
[0012] To facilitate stable installation of the sealing ring, as a connector for fire detection according to this utility model, preferably, the surface of the sealing ring is connected to an installation strip, and the installation strip and the sealing ring are an integral structure.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention improves the efficiency of fire water pressure testing by rotating the adjustment handle on the surface of the nozzle, then pulling the movable plate on the surface of the positioning plate, which in turn drives the linkage plate to compress the linkage spring and moves the locking strip. The locking strip then resets and engages with the locking hole at one end of the adjustment handle to lock it in place. The nozzle is then installed at one end of the detection pipe, and the water pipe connector is connected to the fire hose. By manipulating the adjustment handle, fire water is sprayed through the hose, and the fire water pressure is tested using a pressure gauge. This improves the efficiency of fire water pressure testing, avoids accidental opening of the water pipe connector causing sudden water release, and enhances the safety and accuracy of fire water pressure testing. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall assembly structure provided for an embodiment of this application.
[0017] Figure 2 This is a schematic diagram of the sealing ring installation structure provided in an embodiment of this application.
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning plate provided in an embodiment of this application.
[0019] Figure 4 This is an exploded view of the sealing ring installation structure provided in an embodiment of this application.
[0020] In the diagram: 1. Water pipe connector; 2. Connecting rack; 3. Test tube; 4. Pressure gauge; 5. Nozzle; 6. Adjusting handle; 7. Positioning plate; 8. Movable plate; 9. Linkage plate; 10. Linkage spring; 11. Locking strip; 12. Sealing ring; 13. Sealing ring groove; 14. Installation strip. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4The present invention provides the following technical solution: a fire detection connector, including a water pipe connector 1 and a mating rack 2 installed on the bottom surface of the water pipe connector 1, a detection tube 3 is connected to one end of the water pipe connector 1 relative to the mating rack 2, a pressure test gauge 4 is installed on the surface of the detection tube 3, a nozzle 5 is connected to one end of the detection tube 3 relative to the water pipe connector 1, and an adjustment handle 6 is connected to the surface of the nozzle 5.
[0023] A positioning plate 7 is connected to the side of the nozzle 5 near the adjustment handle 6. A movable plate 8 is connected to the opening on one side of the positioning plate 7. A linkage plate 9 is connected to one end of the movable plate 8. A linkage spring 10 is connected to the side of the linkage plate 9 near the movable plate 8. A locking strip 11 is connected to the other side of the linkage plate 9.
[0024] Preferably, the movable plate 8 passes through the positioning plate 7 and extends to the inner wall of the positioning plate 7, and the nozzle 5 is threadedly connected to the top of the pressure test gauge 4. In actual use, by pulling the movable plate 8 on the surface of the positioning plate 7, the linkage plate 9 is easily driven to squeeze the linkage spring 10, and at the same time, the locking strip 11 is moved, which improves the efficiency of fire water pressure detection, avoids the phenomenon of sudden water release caused by accidentally opening the water pipe to the connector 1, and improves the safety and detection accuracy of fire water pressure detection;
[0025] Preferably, one end of the linkage spring 10 relative to the linkage plate 9 is connected to the inner wall of the positioning plate 7, and the linkage spring 10 and the linkage plate 9 form an elastic telescopic structure. In actual use, by reciprocating the linkage spring 10, the locking insert 11 can be easily moved, thereby facilitating the locking insert 11 to lock with the adjusting handle 6, improving the safety of the water pipe connector 1.
[0026] Preferably, the adjusting handle 6 has a locking hole at one end near the locking strip 11, and the locking strip 11 and the locking hole at one end of the adjusting handle 6 form a fitting structure. In actual use, the adjusting handle 6 can be easily locked and fixed by fitting the locking strip 11 into the locking hole at one end of the adjusting handle 6.
[0027] Preferably, a sealing ring 12, made of silicone, is connected to the inner wall of the bottom opening of the water pipe connector 1. In practical use, the sealing ring 12 facilitates a sealed connection between the water pipe connector 1 and the fire hose, ensuring the accuracy of fire water pressure testing.
[0028] Preferably, the water pipe connector 1 has a sealing ring groove 13 on its inner wall near the sealing ring 12, and the sealing ring 12 is interference-fitted with the sealing ring groove 13 at the bottom opening of the water pipe connector 1. In actual use, the sealing ring 12 is fitted into the sealing ring groove 13, which facilitates the assembly of the sealing ring 12.
[0029] Preferably, the surface of the sealing ring 12 is connected to an installation strip 14, and the installation strip 14 and the sealing ring 12 are an integral structure. In actual use, the sealing ring 12 is easily and stably installed by fitting the installation strip 14 into the opening at the bottom end of the water inlet pipe connector 1.
[0030] The working principle of this utility model is as follows: By rotating the adjusting handle 6 on the surface of the nozzle 5, the movable plate 8 on the surface of the positioning plate 7 is pulled, which facilitates the linkage plate 9 to squeeze the linkage spring 10, and at the same time moves the locking strip 11. Then, the locking strip 11 resets and engages with the locking hole at one end of the adjusting handle 6 to lock the adjusting handle 6. Then, the nozzle 5 is installed at one end of the detection pipe 3, and the water pipe connector 1 is connected to the fire hose. By operating the adjusting handle 6, fire water is sprayed out through the hose, and the fire water pressure is detected by the pressure test gauge 4. This improves the efficiency of fire water pressure detection and avoids the phenomenon of sudden water release caused by accidentally opening the water pipe connector 1, thus improving the safety and accuracy of fire water pressure detection. In addition, by connecting the sealing ring 12 with the sealing ring groove 13 at the bottom of the water pipe connector 1, and simultaneously engaging the mounting strip 14 on the surface of the sealing ring 12, the water pipe connector 1 and the fire hose are sealed and connected, ensuring the accuracy of fire water pressure detection.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A connector for fire detection, comprising a water pipe coupling (1) and a mating rack (2) mounted on the bottom surface of the water pipe coupling (1), characterized in that: The water pipe connector (1) is connected to a detection tube (3) at one end relative to the mating rack (2). A pressure test gauge (4) is installed on the surface of the detection tube (3). A nozzle (5) is connected to one end of the detection tube (3) relative to the water pipe connector (1). An adjustment handle (6) is connected to the surface of the nozzle (5). The nozzle (5) is connected to a positioning plate (7) on the side near the adjustment handle (6). A movable plate (8) is connected to an opening on one side of the positioning plate (7). A linkage plate (9) is connected to one end of the movable plate (8). A linkage spring (10) is connected to the side of the linkage plate (9) near the movable plate (8). A locking strip (11) is connected to the other side of the linkage plate (9).
2. The connector for fire detection according to claim 1, characterized in that: The movable plate (8) passes through the positioning plate (7) and extends to the inner wall of the positioning plate (7), and the nozzle (5) is threaded to the top of the pressure test gauge (4).
3. A connector for fire detection according to claim 1, characterized in that: The linkage spring (10) is connected to the inner wall of the positioning plate (7) at one end relative to the linkage plate (9), and the linkage spring (10) and the linkage plate (9) form an elastic telescopic structure.
4. A connector for fire detection according to claim 1, characterized in that: The adjusting handle (6) has a locking hole at one end near the locking strip (11), and the locking strip (11) and the locking hole at one end of the adjusting handle (6) form a fitting structure.
5. A connector for fire detection according to claim 1, characterized in that: The water pipe connector (1) has a sealing ring (12) connected to the inner wall of the bottom opening, and the sealing ring (12) is made of silicone.
6. A connector for fire detection according to claim 5, characterized in that: The water pipe connector (1) has a sealing ring groove (13) on its inner wall near the sealing ring (12), and the sealing ring (12) is interference-fitted with the sealing ring groove (13) at the bottom opening of the water pipe connector (1).
7. A connector for fire detection according to claim 5, characterized in that: The surface of the sealing ring (12) is connected to an installation strip (14), and the installation strip (14) and the sealing ring (12) are an integral structure.