Fire hydrant capable of rapidly locking connector

Abstract

The fire hydrant comprises a valve body, one side of the valve body is communicated with a water outlet pipe, a second connecting pipe is arranged on the side face of a first connecting pipe, and a second mounting groove is formed in the position, corresponding to the first connecting pipe, of a second mounting disc. The outer side of the joint of the first connecting pipe and the second connecting pipe is sleeved with a limiting lantern ring. The water outlet pipe and the external water pipe are connected through double threads of the first installation disc and the first installation groove and double threads of the second installation disc and the second installation groove, stability and reliability of connection are greatly enhanced, the water pipe is connected more firmly through the double-connection design, the situation of loosening or falling is not prone to occurring, and the service life of the water outlet pipe is prolonged. And meanwhile, the limiting lantern ring is combined to lock and fix the connector outside the connecting position, the sealing effect and the fastening performance of the connector are further enhanced through the additional arrangement of the limiting lantern ring, and the threaded connection design enables the mounting and dismounting processes to be simpler, more convenient and quicker.

Description

Technical Field

[0001] This utility model relates to the field of fire hydrant technology, specifically to a fire hydrant with a quick-locking interface. Background Technology

[0002] A fire hydrant, formally known as a fire hose, is a fixed fire protection facility. Its main function is to control combustibles, isolate oxidizers, and eliminate ignition sources. Fire hydrants are mainly divided into two categories: outdoor fire hydrants and indoor fire hydrants. Indoor fire hydrants are valved interfaces that supply water from indoor pipe networks to the fire scene. They are usually installed in fire hydrant boxes and used in conjunction with fire hoses and nozzles. They are mainly used as fixed indoor fire protection facilities in factories, warehouses, high-rise buildings, public buildings, and ships.

[0003] The existing connection between water pipes and fire hydrant outlets generally uses a flange and multiple bolts for fastening.

[0004] For example, the fire hydrant structure disclosed in patent CN212593667U has a first flange on the right end of the fire hydrant and a second flange on the left end of the output pipe. Both the first and second flanges have multiple sets of through holes. The left end of the bolt passes concentrically through the through holes of the first and second flanges and is connected with the nut. The gasket is fitted on the bolt and is located between the nut and the first flange. The left end of the connector is connected with the right end of the output pipe. However, the sealing performance of the flange connection mainly depends on the pre-tightening force of the gasket and the bolt. Under high pressure, high temperature or corrosive media conditions, it may loosen, and its sealing performance may be limited. Loosening and leakage at the connection will reduce the reliability of the entire fire protection system. Moreover, the flange connection requires precise alignment and tightening, and the installation process is relatively complex. At the same time, due to the large number of connecting parts (bolts and nuts), maintenance also requires more time and effort.

[0005] Therefore, it is necessary to invent a fire hydrant with a quick-locking interface to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a fire hydrant with a quickly lockable interface, in order to solve the problems in the technology of not being able to quickly lock the connection interface and being inconvenient to disassemble and maintain.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fire hydrant with a quick-locking interface, comprising a valve body, a first connecting pipe, a second connecting pipe, and a limiting collar. One side of the valve body is connected to a water outlet pipe. The water outlet end of the water outlet pipe is provided with a first connecting pipe. A second connecting pipe is provided on the side of the first connecting pipe. A first mounting plate and a second mounting plate are provided on the side wall of the second connecting pipe. The first mounting plate has a first mounting groove at a position corresponding to the first connecting pipe. The second mounting plate has a second mounting groove at a position corresponding to the first connecting pipe. A limiting collar is fitted around the connection between the first and second connecting pipes.

[0008] Preferably, an upper valve seat is provided above the valve body, and a valve stem handwheel is provided above the upper valve seat. The user can operate the valve stem by rotating the valve stem handwheel, thereby controlling the opening and closing of the valve body.

[0009] Preferably, a water inlet pipe is provided below the valve body, and a lower valve seat is provided below the water inlet pipe. The center of the lower valve seat is connected to the center of the water inlet pipe, and the water inlet pipe is responsible for introducing water into the valve body.

[0010] Preferably, the first mounting plate and the first mounting slot are connected by threads. The outer wall thread of the first mounting plate engages with the inner wall thread of the first mounting slot. By rotating the first mounting plate, its outer wall thread and the inner wall thread of the first mounting slot are tightly engaged to form a firm mechanical connection.

[0011] Preferably, the second mounting plate and the second mounting slot are connected by threads, and the outer thread of the second mounting plate matches the inner thread of the second mounting slot. The threaded connection between the second mounting plate and the second mounting slot further improves the firmness of the connection.

[0012] Preferably, the outer diameter of the first connecting pipe is equal to the outer diameter of the second connecting pipe. A sealing ring is provided at the connection between the first connecting pipe and the second connecting pipe. The sealing ring is located on the side wall of the second connecting pipe. The side wall of the second connecting pipe and the side wall of the sealing ring are connected by adhesive. The main function of the sealing ring is to provide an additional sealing effect to prevent water leakage at the connection.

[0013] Preferably, the limiting collar is designed as two parts, and the two parts are connected together at the bottom by a hinge. The inner wall of the limiting collar is provided with a sealing gasket. The sealing gasket is in close contact with the outer diameter of the first connecting pipe and the outer wall of the second connecting pipe. The sealing gasket further improves the sealing performance at the connection between the first connecting pipe and the second connecting pipe.

[0014] Preferably, a screw is provided above the limiting collar, one end of the screw is hinged to one side of the limiting collar, and the other end of the screw is threaded to a threaded sleeve. A limiting groove is formed at the contact position between the narrower end of the threaded sleeve and the inner wall of the limiting collar. The narrower end of the threaded sleeve and the limiting groove cooperate with each other. The limiting collar plays the role of fixing and supporting the connecting pipe, preventing the No. 1 connecting pipe and the No. 2 connecting pipe from loosening or falling off during use, making the connection part of the fire hydrant more stable and safe.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] In this invention, the water outlet pipe and the external water pipe are connected by a double threaded connection between the No. 1 mounting plate and the No. 1 mounting groove, and the No. 2 mounting plate and the No. 2 mounting groove, which greatly enhances the stability and reliability of the connection. This double connection design makes the water pipe connection more secure and less prone to loosening or falling off. At the same time, the limiting collar is used to lock and fix the interface at the connection point. The addition of the limiting collar further enhances the sealing effect and tightness of the interface. Moreover, the threaded connection design makes the installation and disassembly process simpler and faster. Attached Figure Description

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

[0018] Figure 2 This is an exploded three-dimensional structural diagram of the No. 1 connecting pipe and the No. 2 connecting pipe of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the sealing ring of this utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting collar of this utility model;

[0021] Figure 5 This is a three-dimensional cross-sectional structural diagram of the threaded sleeve of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Valve body; 2. Upper valve seat; 3. Valve stem handwheel; 4. Inlet pipe; 5. Lower valve seat; 6. Outlet pipe; 7. Connecting pipe No. 1; 8. Connecting pipe No. 2; 9. Mounting plate No. 1; 10. Mounting slot No. 1; 11. Mounting plate No. 2; 12. Mounting slot No. 2; 13. Sealing ring; 14. Limiting collar; 15. Sealing gasket; 16. Screw; 17. Screw sleeve; 18. Limiting groove. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-5 The fire hydrant shown includes a valve body 1, a first connecting pipe 7, a second connecting pipe 8, and a limiting collar 14. An upper valve seat 2 is located above the valve body 1, and a valve stem handwheel 3 is located above the upper valve seat 2. An inlet pipe 4 is located below the valve body 1, and a lower valve seat 5 is located below the inlet pipe 4. The center of the lower valve seat 5 is connected to the center of the inlet pipe 4. An outlet pipe 6 is connected to one side of the valve body 1. A first connecting pipe 7 is located at the outlet end of the outlet pipe 6. A second connecting pipe 8 is located on the side of the first connecting pipe 7. A first mounting plate 9 and a second mounting plate 11 are located on the side wall of the second connecting pipe 8. The first mounting plate 9 has a first mounting groove 10 at a position corresponding to the first connecting pipe 7, and the second mounting plate 11 has a second mounting groove 12 at a position corresponding to the first connecting pipe 7. A limiting collar 14 is fitted onto the outer side of the connection between the first connecting pipe 7 and the second connecting pipe 8.

[0026] The first mounting plate 9 and the first mounting groove 10 are connected by threads, with the outer thread of the first mounting plate 9 mating with the inner thread of the first mounting groove 10. The second mounting plate 11 and the second mounting groove 12 are also connected by threads, with the outer thread of the second mounting plate 11 mating with the inner thread of the second mounting groove 12. The outer diameter of the first connecting pipe 7 is equal to the outer diameter of the second connecting pipe 8. A sealing ring 13 is provided at the connection between the first connecting pipe 7 and the second connecting pipe 8. The sealing ring 13 is located on the side wall of the second connecting pipe 8, and the side wall of the second connecting pipe 8 and the side wall of the sealing ring 13 are connected by adhesive. The limiting collar 14 is designed in two parts, and the two parts are connected together at the bottom by a hinge. The inner wall of the limiting collar 14 is provided with a sealing gasket 15. The sealing gasket 15 and the outer diameter of the first connecting pipe 7 are tightly fitted with the outer wall of the second connecting pipe 8. A screw 16 is provided above the limiting collar 14. One end of the screw 16 is hinged to one side of the limiting collar 14, and the other end of the screw 16 is threaded to a screw sleeve 17. A limiting groove 18 is opened at the contact position between the narrower end of the screw sleeve 17 and the inner wall of the limiting collar 14. The narrower end of the screw sleeve 17 and the limiting groove 18 are engaged.

[0027] The outer thread of the No. 1 mounting plate 9 is tightly engaged with the inner thread of the No. 1 mounting groove 10 to achieve a stable connection. Similarly, the No. 2 mounting plate 11 is also tightly connected with the No. 2 mounting groove 12. The double threaded connection provides a stable connection effect and enhances the overall structural strength of the connection between the No. 1 connecting pipe 7 and the No. 2 connecting pipe 8. The sealing ring 13 plays a crucial sealing role, preventing water leakage at the connection. The limiting collar 14 not only fixes and supports the connecting pipe, but also, through the sealing gasket 15 on its inner wall, fits tightly with the outer wall of the connection, further enhancing the sealing performance of the connection and reducing the possibility of leakage under high-pressure water flow. At the same time, the threaded sleeve 17 inserts its narrower end into the limiting groove 18, thereby locking the limiting collar 14. This design not only provides reliable locking force, but also enables the limiting collar 14 to be quickly locked and unlocked.

[0028] Working principle of this utility model:

[0029] Refer to the instruction manual appendix Figure 1-3 When using this utility model, firstly, the water inlet pipe 4 at the bottom of the fire hydrant is connected to the water inlet end of the external water source. Then, the first connecting pipe 7 and the second connecting pipe 8 are aligned. Then, the first mounting plate 9 and the second mounting plate 11 are screwed into the first mounting groove 10 and the second mounting groove 12 respectively, ensuring that the threads are tightly fitted and there is no loosening during the rotation process.

[0030] Refer to the instruction manual appendix Figure 4-5 When using this utility model, the two parts of the limiting collar 14 are finally closed around the outer walls of the first connecting pipe 7 and the second connecting pipe 8, and the sealing gasket 15 on its inner wall is tightly fitted to the outer wall of the connection between the first connecting pipe 7 and the second connecting pipe 8. Then, the screw sleeve 17 is rotated so that its narrower end is inserted into the limiting groove 18, thereby locking the limiting collar 14 and ensuring that the screw sleeve 17 is tightened in place to prevent the limiting collar 14 from loosening during use. This completes the connection between the external water pipe and the end of the fire hydrant inlet pipe 4. This installation method not only ensures the tightness of the interface, but also facilitates the convenient disassembly and assembly between the fire hydrant and the external water pipe. After the connection is completed, the water flow rate can be adjusted by rotating the valve stem handwheel 3. According to the actual needs, rotating the valve stem handwheel 3 counterclockwise increases the water flow rate, and rotating it clockwise decreases the water flow rate.

Claims

1. A fire hydrant with a quick-locking interface, comprising a valve body (1), a first connecting pipe (7), a second connecting pipe (8), and a limiting collar (14), characterized in that: One side of the valve body (1) is connected to a water outlet pipe (6). A first connecting pipe (7) is provided at the water outlet end of the water outlet pipe (6). A second connecting pipe (8) is provided on the side of the first connecting pipe (7). A first mounting plate (9) and a second mounting plate (11) are provided on the side wall of the second connecting pipe (8). A first mounting groove (10) is opened at the position corresponding to the first connecting pipe (7). A second mounting groove (12) is opened at the position corresponding to the first connecting pipe (7). A limiting collar (14) is sleeved on the outside of the connection between the first connecting pipe (7) and the second connecting pipe (8).

2. A fire hydrant with a quick-locking interface according to claim 1, characterized in that: An upper valve seat (2) is provided above the valve body (1), and a valve stem handwheel (3) is provided above the upper valve seat (2).

3. A fire hydrant with a quick-locking interface according to claim 2, characterized in that: A water inlet pipe (4) is provided below the valve body (1), and a lower valve seat (5) is provided below the water inlet pipe (4). The center of the lower valve seat (5) is connected to the center of the water inlet pipe (4).

4. A fire hydrant with a quick-locking interface according to claim 1, characterized in that: The first mounting plate (9) and the first mounting groove (10) are connected by threads, and the outer wall thread of the first mounting plate (9) is engaged with the inner wall thread of the first mounting groove (10).

5. A fire hydrant with a quick-locking interface according to claim 1, characterized in that: The second mounting plate (11) and the second mounting groove (12) are connected by threads, and the outer thread of the second mounting plate (11) is engaged with the inner thread of the second mounting groove (12).

6. A fire hydrant with a quick-locking interface according to claim 1, characterized in that: The outer diameter of the first connecting pipe (7) is equal to the outer diameter of the second connecting pipe (8). A sealing ring (13) is provided at the connection between the first connecting pipe (7) and the second connecting pipe (8). The sealing ring (13) is located on the side wall of the second connecting pipe (8). The side wall of the second connecting pipe (8) and the side wall of the sealing ring (13) are connected by adhesive.

7. A fire hydrant with a quick-locking interface according to claim 1, characterized in that: The limiting collar (14) is designed as two parts, and the two parts are connected together at the bottom by a hinge. The inner wall of the limiting collar (14) is provided with a sealing gasket (15), and the outer diameter of the sealing gasket (15) and the first connecting pipe (7) are closely fitted with the outer wall of the second connecting pipe (8).

8. A fire hydrant with a quick-locking interface according to claim 7, characterized in that: A screw (16) is provided above the limiting collar (14). One end of the screw (16) is hinged to one side of the limiting collar (14), and the other end of the screw (16) is threaded to a screw sleeve (17). A limiting groove (18) is provided at the contact position between the narrower end of the screw sleeve (17) and the inner wall of the limiting collar (14). The narrower end of the screw sleeve (17) cooperates with the limiting groove (18).

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