Leakage-proof fire-fighting lance connector

Abstract

The utility model discloses a leakproof fire-fighting lance interface which comprises a connector and a lance nozzle in threaded connection with the connector, the connector is fixedly connected with a plurality of fixing plates, and the lance nozzle is fixedly connected with limiting plates matched with the fixing plates; the water gun further comprises two sealing rings, and the two sealing rings are fixed in the connector and the water gun spray head respectively and make movable contact with each other. According to the leakage-proof fire-fighting lance connector, the lance nozzle is connected with the connector, when the leakage-proof fire-fighting lance connector is used, water flow passes through the lance nozzle, so that the water pressure in the lance nozzle is enhanced, the driving assembly is pushed to move, the movable plate moves towards the connector, and the fixed plate and the limiting plate are close to each other; the two sealing rings are driven to abut against each other, so that the sealing performance of the water gun nozzle and the connector is guaranteed, the larger the water flow is, the higher the sealing performance of the sealing rings is, and therefore the stability of the water gun nozzle in use is guaranteed, and the leakage-proof performance is high.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically to a leak-proof fire hose nozzle interface. Background Technology

[0002] A fire hose reel is a spray nozzle that uses water as the extinguishing agent and is an indispensable firefighting tool for fire and rescue teams. It is typically used in conjunction with a fire hose and can spray a dense, powerful stream of water to extinguish various types of fires.

[0003] When the water gun is in operation, the high-pressure water flow impacts the nozzle, increasing the repulsive force at the connection between the nozzle and the water pipe. This can easily cause the connection to loosen, and with prolonged use, leakage will occur at the connection between the water pipe and the nozzle. As the water flow increases, the leakage becomes more severe, thereby increasing the load on the nozzle during operation and reducing its service life. Utility Model Content

[0004] The purpose of this utility model is to provide a leak-proof fire hose nozzle interface to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: including a connector and a water gun nozzle threadedly connected to the connector, wherein multiple fixing plates are fixedly connected to the connector, and a limiting plate adapted to each fixing plate is fixedly connected to the water gun nozzle.

[0006] It also includes two sealing rings, which are fixed inside the connector and the water gun nozzle respectively, and the two sealing rings are in contact with each other.

[0007] It also includes multiple movable plates, which are slidably disposed outside the fixed plate and the limiting plate. When the movable plates move, they drive the fixed plate and the limiting plate to move closer to each other so that the two sealing rings abut against each other.

[0008] As a further description of the above technical solution:

[0009] It also includes multiple leak-proof components. The pressure of the water flow inside the water gun nozzle drives each leak-proof component to rotate, so that multiple moving plates move simultaneously, driving the connector head and the water gun nozzle to move closer to each other. The leak-proof component includes a support plate rotatably mounted on the water gun nozzle, and a rotating plate is rotatably connected to the support plate. One end of the rotating plate is in active contact with the moving plate.

[0010] As a further description of the above technical solution:

[0011] A torsion spring is fixedly connected to the support plate, and the torsion spring is fixedly connected to the rotating plate.

[0012] As a further description of the above technical solution:

[0013] A drive plate is rotatably connected to the inner wall of the water gun nozzle. A push rod is slidably provided on the side of the drive plate near the water gun nozzle. The end of the push rod extends to the outside of the water gun nozzle and makes movable contact with the rotating plate.

[0014] As a further description of the above technical solution:

[0015] The water gun nozzle is fixedly connected to multiple fixed rods, and the movable plate is slidably disposed outside the fixed rods.

[0016] As a further description of the above technical solution:

[0017] The water gun nozzle is fixedly connected to multiple protective covers, and the leak-proof component is located inside the protective covers.

[0018] In the above technical solution, the leak-proof fire hose nozzle interface provided by this utility model has the following beneficial effects:

[0019] This invention relates to a water gun nozzle connected to a connector. During use, water flows through the nozzle, increasing the water pressure and pushing the leak-proof component to move. This causes the moving plate to move towards the connector, bringing the fixed plate and the limiting plate closer together. This causes the two sealing rings to come into contact with each other, ensuring the sealing performance between the water gun nozzle and the connector. The greater the water flow, the higher the sealing performance of the sealing rings, thus ensuring the stability of the water gun nozzle during use and providing high leak-proof performance.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0021] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 A three-dimensional structural schematic diagram provided for an embodiment of this utility model;

[0024] Figure 2 A three-dimensional structural diagram of the water gun nozzle provided in an embodiment of this utility model;

[0025] Figure 3Provided for the embodiments of this utility model Figure 2 The enlarged view at point A is shown below;

[0026] Figure 4 A three-dimensional structural diagram of the water gun nozzle provided in an embodiment of this utility model;

[0027] Figure 5 Provided for the embodiments of this utility model Figure 4 The enlarged view at point B is shown below;

[0028] Figure 6 This is a partial longitudinal section diagram of the water gun nozzle provided in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Connector; 11. Fixing plate; 2. Water gun nozzle; 21. Limiting plate; 22. Protective cover; 23. Fixing rod; 3. Moving plate; 4. Sealing ring; 51. Support plate; 52. Rotating plate; 53. Torsion spring; 54. Drive plate; 55. Push rod. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0032] Please see Figures 1-6 This embodiment provides a leak-proof fire hose nozzle interface, including a connector 1 and a nozzle 2 threadedly connected to the connector 1. Multiple fixing plates 11 are fixedly connected to the connector 1, and limiting plates 21 adapted to each fixing plate 11 are fixedly connected to the nozzle 2. It also includes two sealing rings 4, which are respectively fixed inside the connector 1 and the nozzle 2, and are in movable contact. When the connector 1 and the nozzle 2 approach each other, the two sealing rings 4 abut against each other, increasing the sealing performance. Furthermore, it includes multiple movable plates 3, which are trapezoidal in shape. Moving the movable plates 3 towards the connector 1 brings the fixing plates 11 and the limiting plates 21 closer together, increasing the sealing performance of the two sealing rings 4. The movable plates 3 are slidably disposed outside the fixing plates 11 and the limiting plates 21. When the movable plates 3 move, they drive the fixing plates 11 and the limiting plates 21 closer together, causing the two sealing rings 4 to abut against each other.

[0033] In a further embodiment of this utility model, multiple leak-proof components are also included. The pressure of the water flow in the water gun nozzle 2 drives each leak-proof component to rotate, so that multiple moving plates 3 move simultaneously, driving the connector 1 and the water gun nozzle 2 to move closer to each other. The leak-proof component includes a support plate 51 rotatably disposed on the water gun nozzle 2, and a rotating plate 52 rotatably connected to the support plate 51. One end of the rotating plate 52 is in active contact with the moving plate 3.

[0034] Furthermore, a torsion spring 53 is fixedly connected to the support plate 51, and the torsion spring 53 is fixedly connected to the rotating plate 52.

[0035] Furthermore, a drive plate 54 is rotatably connected to the inner wall of the water gun nozzle 2. A push rod 55 is slidably arranged on the side of the drive plate 54 near the water gun nozzle 2. The end of the push rod 55 extends to the outside of the water gun nozzle 2 and makes movable contact with the rotating plate 52. The push rod 55 is connected to the water gun nozzle 2 through a dynamic seal. When the push rod 55 moves inside the water gun nozzle 2, the sealing between the push rod 55 and the water gun nozzle 2 is ensured.

[0036] In a further embodiment of this utility model, a plurality of fixed rods 23 are fixedly connected to the water gun nozzle 2, and the movable plate 3 is slidably disposed outside the fixed rods 23. The fixed rods 23 limit the movable plate 3 to ensure that the movable plate 3 slides stably outside the fixed plate 11 and the limiting plate 21.

[0037] In the embodiments provided by this utility model, multiple protective covers 22 are fixedly connected to the outside of the water gun nozzle 2, and the leak-proof component is located inside the protective cover 22.

[0038] In this utility model, the water gun nozzle 2 is first installed on the connector 1. During the spiral process, the fixing plate 11 is screwed into the bottom of the moving plate 3. When the water gun nozzle 2 is turned on, water flows out through the water gun nozzle 2, which increases the pressure inside the water gun nozzle 2, thereby pushing the drive plate 54 to rotate, thereby pushing the push rod 55 to move outward.

[0039] The movement of push rod 55 drives rotating plate 52 to rotate, causing torsion spring 53 to twist. At the same time, the other end of rotating plate 52 pushes moving plate 3 downward. Since moving plate 3 is trapezoidal, fixed plate 11 and limiting plate 21 move closer to each other, causing two sealing rings 4 to abut against each other, increasing the sealing performance of sealing rings 4. When the pressure is greater, moving plate 3 moves further downward, increasing the distance that fixed plate 11 and limiting plate 21 move, thereby increasing the force of the two sealing rings 4 abutting against each other, thus preventing leakage from water gun nozzle 2.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A leak-proof fire hose nozzle interface, comprising a connector (1) and a nozzle (2) threadedly connected to the connector (1), characterized in that: Multiple fixing plates (11) are fixedly connected to the connector (1), and a limiting plate (21) adapted to each fixing plate (11) is fixedly connected to the water gun nozzle (2). It also includes two sealing rings (4), which are fixed in the connector (1) and the water gun nozzle (2) respectively, and the two sealing rings (4) are in contact with each other. It also includes multiple movable plates (3), which are slidably disposed outside the fixed plate (11) and the limiting plate (21). When the movable plate (3) moves, it drives the fixed plate (11) and the limiting plate (21) to move closer to each other so that the two sealing rings (4) abut against each other.

2. The leak-proof fire hose nozzle interface according to claim 1, characterized in that, It also includes multiple leak-proof components. The pressure of the water flow in the water gun nozzle (2) drives each leak-proof component to rotate, so that multiple moving plates (3) move simultaneously, driving the connector (1) and the water gun nozzle (2) to move closer to each other. The leak-proof component includes a support plate (51) rotatably mounted on the water gun nozzle (2). A rotating plate (52) is rotatably connected to the support plate (51). One end of the rotating plate (52) is in contact with the moving plate (3).

3. A leak-proof fire hose nozzle interface according to claim 2, characterized in that, A torsion spring (53) is fixedly connected to the support plate (51), and the torsion spring (53) is fixedly connected to the rotating plate (52).

4. A leak-proof fire hose nozzle interface according to claim 2, characterized in that, The inner wall of the water gun nozzle (2) is rotatably connected to a drive plate (54). A push rod (55) is slidably provided on the side of the drive plate (54) near the water gun nozzle (2). The end of the push rod (55) extends to the outside of the water gun nozzle (2) and makes contact with the rotating plate (52).

5. A leak-proof fire hose nozzle interface according to claim 1, characterized in that, The water gun nozzle (2) is fixedly connected to a plurality of fixed rods (23), and the movable plate (3) is slidably disposed outside the fixed rods (23).

6. A leak-proof fire hose nozzle interface according to claim 2, characterized in that, The water gun nozzle (2) is fixedly connected to a plurality of protective covers (22), and the leak-proof component is located inside the protective cover (22).

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