Anti-theft fire coupling

Abstract

The utility model relates to an anti-theft fire coupling. In order to solve the problem, the utility model provides the anti-theft fire coupling. According to the technical scheme, the anti-theft fire hydrant valve comprises a fire hydrant valve body, an anti-theft connector, a clamping spring, a sealing gasket and an outer tightening nut, a valve body water passing opening is formed in the outlet end of the fire hydrant valve body, and a connector water passing opening communicated with the valve body water passing opening is formed in the anti-theft connector. Comprising a connector built-in part, a connector end blocking part and a connector clamping hook part, the outer diameters of the connector built-in part, the connector end blocking part and the connector clamping hook part are sequentially increased, the connector built-in part is arranged in the valve body water passing opening, and the connector end blocking part is in butt joint with the outlet end of the fire hydrant valve body. The anti-theft connector has the advantages that the anti-theft connector is connected with the fire hydrant valve body and the outer tightening nut through the double connecting threads respectively, the inner tightening mode is adopted, the connecting tightness is effectively enhanced, meanwhile, limiting and locking are further conducted through the clamping spring, the anti-loosening capacity of the connector is enhanced, and the fire-fighting connector is effectively prevented from being stolen or mistakenly disassembled.

Description

Technical Field

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

[0002] Fire hydrants are valved interfaces in indoor pipe networks that supply water to fire scenes. They serve as fixed indoor fire protection facilities in factories, warehouses, high-rise buildings, public buildings, and ships. Fire hose connections are installed at the output end of the fire hydrant valve body for connecting external fire hoses. Existing fire hose connections are simply threaded onto the fire hydrant valve body, making them easy for outsiders to remove by hand, thus affecting normal water supply and providing poor protection. In addition, existing fire hose connections are prone to loosening of the threaded connection due to pressure after water is supplied, leading to leakage at the joint. Improvements and optimizations are needed to address these issues. Utility Model Content

[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide a theft-proof and fire-fighting interface.

[0004] The technical solution adopted by this utility model for an anti-theft fire hydrant interface is characterized by comprising a fire hydrant valve body, an anti-theft interface, a retaining spring, a sealing gasket, and an external tightening nut. The fire hydrant valve body has a water outlet at its outlet end, and the anti-theft interface has an interface water outlet communicating with the valve body water outlet. It includes an interface internal portion, a connector end stop, and a connector hook portion, with progressively increasing outer diameters. The interface internal portion is placed inside the valve body water outlet. The connector end stop is aligned with the outlet end of the fire hydrant valve body. The connector hook portion is connected to a fire hose. The outer wall of the interface internal portion has a first external thread and an interface limiting groove. The connector end stop has a second external thread. The valve body water outlet... The inner wall of the end is provided with a valve body positioning groove, and the inner wall of the valve body positioning groove is provided with a valve body internal thread that is threadedly connected to the first external thread of the interface. The outlet end of the fire hydrant valve body is provided with a valve body sink groove at the valve body positioning groove. The valve body sink groove is provided with a snap ring adjustment port that communicates with the valve body positioning groove. The snap ring is sleeved on the interface limiting groove and has a snap ring opening that is connected to the snap ring adjustment port. The outer wall of the outlet end of the fire hydrant valve body is provided with a valve body external thread. The external tightening nut is sleeved on the outside of the outlet end of the fire hydrant valve body and is threadedly connected to the valve body external thread and the second external thread of the interface, respectively.

[0005] The front end of the built-in interface is provided with an internal positioning part that corresponds to the positioning groove inside the valve body.

[0006] The sealing gasket is fitted onto the recessed groove of the valve body, and the inner wall of the sealing gasket is provided with a sealing gasket relief groove.

[0007] The water outlet of the interface has a regular hexagonal structure.

[0008] The external tightening nut has a regular hexagonal structure.

[0009] The anti-theft interface is made of copper.

[0010] The advantages of this anti-theft fire hydrant interface are as follows: the anti-theft interface uses double connecting threads to connect to the fire hydrant valve body and the external tightening nut respectively, and adopts an internal tightening method, which effectively enhances the tightness of the connection. At the same time, the snap ring further limits and locks the interface, enhancing its anti-loosening ability, effectively preventing the fire hydrant interface from being stolen or accidentally disassembled, and ensuring the integrity of the fire protection facilities. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a cross-sectional view of the anti-theft interface of this utility model;

[0013] Figure 2 This is an installation diagram of the anti-theft and fire-fighting interface of this utility model;

[0014] Figure 3 This is a sectional view of the fire hydrant valve body of this utility model;

[0015] Figure 4 yes Figure 3 Enlarged image;

[0016] Figure 5 This is a schematic diagram of the structure of the snap ring of this utility model;

[0017] Figure 6 This is a cross-sectional view of the sealing gasket of this utility model. Detailed Implementation

[0018] like Figure 1-6As shown, the anti-theft fire hose interface of this utility model includes a fire hydrant valve body 1, an anti-theft interface 2, a retaining spring 3, a sealing gasket 4, and an external tightening nut 5. The outlet end of the fire hydrant valve body 1 is provided with a valve body water outlet 6. The anti-theft interface 2 is provided with an interface water outlet 21 communicating with the valve body water outlet 6. It includes an interface built-in part 7, a connector end stop 8, and a connector hook part 9, with progressively increasing outer diameters. The interface built-in part 7 is placed inside the valve body water outlet 6. The connector end stop 8 is connected to the outlet end of the fire hydrant valve body 1. The connector hook part 9 is connected to the fire hose. The outer wall of the interface built-in part 7 is provided with a first external thread 10 and an interface limiting groove 11. The connector end stop 8 is provided with a second external thread 12. The inner wall of the valve body water outlet 6 is provided with an internal valve body positioning groove 14. The inner wall of the internal valve body positioning groove 14 is provided with an internal valve body thread 15 threadedly connected to the first external thread 10 of the interface. The outlet end of the hydrant valve body 1 is provided with a valve body recess 17 at the positioning groove 14 inside the valve body. The valve body recess 17 is provided with a snap ring adjustment port 16 that communicates with the positioning groove 14 inside the valve body. The snap ring 3 is sleeved on the interface limiting groove 11, and has a snap ring opening 22 that is connected to the snap ring adjustment port 16. The outer wall of the outlet end of the hydrant valve body 1 is provided with an external thread 18. The external tightening nut 5 is sleeved on the outside of the outlet end of the hydrant valve body 1 and is threadedly connected to the external thread 18 of the valve body and the second external thread 12 of the interface respectively. The anti-theft interface 2 adopts a double connecting thread to connect to the hydrant valve body 1 and the external tightening nut 5 respectively and adopts an internal screw tightening method, which is concealed and effectively enhances the tightness of the connection. At the same time, the snap ring 3 further limits and locks, enhancing the anti-loosening ability of the anti-theft interface 2, effectively preventing the fire interface from being stolen or accidentally disassembled, ensuring the integrity of the fire protection facilities, and providing higher security.

[0019] The front end of the built-in interface 7 is provided with an internal positioning part 20 corresponding to the positioning groove 14 inside the valve body, which ensures accurate positioning and more reliable and stable installation.

[0020] The sealing gasket 4 is fitted onto the valve body recess 17, and the inner wall of the sealing gasket 4 is provided with a sealing gasket relief groove 23, which effectively prevents leakage at the interface under water pressure and improves the reliability of the fire protection facilities.

[0021] The interface outlet 21 has a regular hexagonal structure, which has better torque transmission capability and facilitates tool operation.

[0022] The external tightening nut 5 has a regular hexagonal structure, which facilitates tool operation.

[0023] The anti-theft interface 2 is made of copper, which has good corrosion resistance and extends the product's service life.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A burglarproof fire-fighting interface, characterized in that: The fire hydrant includes a fire hydrant valve body (1), an anti-theft interface (2), a retaining ring (3), a sealing gasket (4), and an external tightening nut (5). The outlet end of the fire hydrant valve body (1) is provided with a valve body water outlet (6). The anti-theft interface (2) is provided with an interface water outlet (21) that communicates with the valve body water outlet (6). The anti-theft interface includes an interface built-in part (7), a connector end stop (8), and a connector hook part (9) with increasing outer diameters. The interface built-in part (7) is placed inside the valve body water outlet (6). The connector end stop (8) is connected to the outlet end of the fire hydrant valve body (1). The connector hook part (9) is connected to the fire hose. The outer wall of the interface built-in part (7) is provided with a first external thread (10) and an interface limiting groove (11). The connector end stop (8) is provided with a second external thread (12). The end of the valve body water outlet (6) is... The inner wall is provided with a valve body positioning groove (14), and the inner wall of the valve body positioning groove (14) is provided with a valve body internal thread (15) that is threadedly connected to the first external thread (10) of the interface. The outlet end of the fire hydrant valve body (1) is provided with a valve body sink groove (17) at the valve body positioning groove (14). The valve body sink groove (17) is provided with a snap ring adjustment port (16) that communicates with the valve body positioning groove (14). The snap ring (3) is sleeved on the interface limiting groove (11) and has a snap ring opening (22) that is connected to the snap ring adjustment port (16). The outer wall of the outlet end of the fire hydrant valve body (1) is provided with a valve body external thread (18). The external tightening nut (5) is sleeved on the outlet end of the fire hydrant valve body (1) and is threadedly connected to the valve body external thread (18) and the second external thread (12) of the interface respectively.

2. The anti-theft fire-fighting interface according to claim 1, characterized in that: The front end of the built-in interface part (7) is provided with an internal positioning part (20) corresponding to the positioning groove (14) inside the valve body.

3. The anti-theft and fire-fighting interface according to claim 1, characterized in that: The sealing gasket (4) is fitted onto the valve body recess (17), and the inner wall of the sealing gasket (4) is provided with a sealing gasket relief groove (23).

4. The anti-theft fire-fighting interface according to claim 1, characterized in that: The water outlet (21) of the interface is a regular hexagonal structure.

5. The anti-theft fire-fighting interface according to claim 1, characterized in that: The external tightening nut (5) has a regular hexagonal structure.

6. The anti-theft and fire-fighting interface according to claim 1, characterized in that: The anti-theft interface (2) is made of copper.

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