High-sealing-performance quick-connection fire hydrant

Abstract

The utility model relates to a quick-connection fire hydrant with high sealing performance. The technical problem to be solved by the utility model is to provide the quick-connection fire hydrant with high sealing performance. According to the technical scheme, the fire hydrant comprises a fire hydrant base, a fire hydrant body, a water outlet middle connecting piece assembly and a water outlet stifle assembly, the water outlet middle connecting piece assembly comprises a water outlet middle connecting piece, the water outlet stifle assembly comprises a water outlet stifle, a stifle quick connecting assembly and an outer sealing gasket, the fire hydrant body comprises a hydrant body main base and a hydrant body water outlet end, and the hydrant body water outlet end is connected with the hydrant body main base. A hydrant body main through hole is formed in the hydrant body main base, a hydrant body water outlet hole is formed in the hydrant body water outlet end, and the water outlet middle connecting piece comprises a middle connecting piece thread part, a middle connecting piece end sealing part and a middle connecting piece external connecting part. The water outlet blank cap has the advantages that the water outlet blank cap is connected with the water outlet water connecting piece in a lifting type locking and unlocking mode, the water outlet blank cap can be rapidly taken down only by lifting the lifting rod body and separating the lock head from the lock groove of the middle connecting piece, operation is convenient, and the emergency response speed and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to a quick-connect fire hydrant with high sealing performance. Background Technology

[0002] Above-ground fire hydrants are fire-fighting water supply devices installed directly on the ground surface and exposed to the superstructure, typically connected to municipal or building outdoor fire protection pipe networks. Existing above-ground fire hydrants consist of a hydrant base, hydrant body, inlet connector, and outlet cap. The inlet connector and outlet cap are generally connected by threads. In an emergency, opening the outlet cap requires rotating it multiple times to fully unscrew it, and rust or debris further complicates the process, directly impacting the speed and efficiency of opening. Furthermore, leaks have become a problem at the connections between the hydrant body, inlet connector, and outlet cap over time. Therefore, improvements and optimizations are needed to address these issues. Utility Model Content

[0003] To address the aforementioned problems, the technical issue this invention aims to resolve is to provide a high-sealing, quick-connect fire hydrant.

[0004] The technical solution adopted by this utility model of a high-sealing quick-connect fire hydrant is as follows: The fire hydrant includes a hydrant seat, a hydrant body, an outlet water connector assembly and an outlet cap assembly located at the end of the hydrant body. The outlet water connector assembly includes an outlet water connector; the outlet cap assembly includes an outlet cap, a quick-connect cap assembly, and an outer sealing gasket; the hydrant body includes a main seat connected to the hydrant seat and an outlet end; the main seat has a main through hole; the outlet end has an outlet hole perpendicular to the main through hole; the outlet water connector includes a threaded portion, an end seal, and an outer portion arranged sequentially; the outlet water connector has a water passage hole; the inner wall of the outlet end has an internal thread; the internal thread is threaded to the threaded portion; the end seal abuts against the outlet end; and the outer wall of the outer portion has a locking groove. The quick-connect cap assembly includes a lock head, a locking lifting rod, and a locking spring. The locking lifting rod includes a lifting rod body and a lifting rod limiting part. The water outlet cap includes a cap end seal and a cap covering part. The inner wall of the cap covering part is provided with a cap positioning groove. The cap positioning groove is provided with a cap through hole communicating with the outside. The end of the lifting rod body passes through the cap through hole and connects to the lock head. The locking spring is sleeved on the lifting rod body, with one end abutting against the cap positioning groove and the other end abutting against the lock head. The lock head is placed in the locking groove of the middle connector. The outer sealing gasket includes an outer sealing gasket end seal that fits against the inner wall of the cap end seal and an outer sealing gasket covering part that fits against the inner wall of the cap covering part. The outer sealing gasket covering part wraps around the outer part of the middle connector. The outer sealing gasket covering part is provided with an outer sealing gasket clearance hole for the locking spring to move.

[0005] The outer sealing gasket end cap is provided with an outer sealing gasket foot, the outer sealing gasket cover is provided with an outer sealing gasket limiting part, the inner wall of the cap end cap is provided with a cap opening for engaging the outer sealing gasket foot, and the inner wall of the cap cover is provided with a cap limiting groove that mates with the outer sealing gasket limiting part.

[0006] The locking lifting rod also includes a lifting rod handle head, and the outer wall of the cover is provided with a cover guide groove for the lifting rod limiting part to receive.

[0007] The outlet water connector assembly also includes an inner sealing gasket. The inner wall of the outlet end of the plug body is provided with an inner stop part, an inner positioning groove and an inner thread from the inside to the outside. The front end of the threaded part of the connector is provided with a front positioning groove. The inner sealing gasket is placed in the inner positioning groove and the front positioning groove of the connector.

[0008] The outlet water connector assembly also includes an anti-slip screw. The outlet end of the plug body has an outlet threaded hole that is perpendicular to the outlet hole of the plug body at the internal thread. The middle part of the outer wall of the threaded part of the connector has an anti-slip groove. The anti-slip screw is threadedly connected to the outlet threaded hole, and its end abuts against the anti-slip groove of the connector.

[0009] The outlet cap assembly also includes a cap connecting chain. The main seat of the plug body is provided with a chain connecting block below the outlet end of the plug body. One end of the cap connecting chain is connected to the chain connecting block and the other end is connected to the outlet cap.

[0010] The advantages of this high-sealing quick-connect fire hydrant are as follows: the outlet cap is connected to the outlet water connector by a pull-type locking and unlocking method. Simply lift the lifting rod to disengage the locking head from the locking groove of the connector, and the outlet cap can be quickly removed, which is convenient for operation and improves the speed and efficiency of emergency response; the double sealing design of the inner and outer sealing gaskets eliminates the risk of leakage; the anti-slip screw is pressed against the anti-slip groove of the connector, which effectively prevents the threaded part of the connector from loosening due to water flow impact, and effectively improves the connection reliability of the outlet water connector. 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 half-sectional view of the high-sealing quick-connect fire hydrant of this utility model;

[0013] Figure 2 This is a structural schematic diagram of the water outlet junction assembly of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the water outlet cap assembly of this utility model;

[0015] Figure 4 This is a half-sectional view of the fire hydrant body of this utility model;

[0016] Figure 5 yes Figure 4 Enlarged image;

[0017] Figure 6 This is a half-sectional view of the water outlet connector of this utility model;

[0018] Figure 7 This is a structural schematic diagram of the quick-connect assembly with a sealed cap of this utility model;

[0019] Figure 8 This is a half-sectional view of the water outlet cap of this utility model;

[0020] Figure 9 This is a half-sectional view of the outer sealing gasket of this utility model. Detailed Implementation

[0021] like Figure 1-9 As shown, the high-sealing quick-connect fire hydrant of this utility model includes a fire hydrant seat 1, a fire hydrant body 2, an outlet water connector assembly 3 and an outlet cap assembly 4 disposed at the end of the fire hydrant body 2. The outlet water connector assembly 3 includes an outlet water connector 6, and the outlet cap assembly 4 includes an outlet cap 10, a cap quick-connect assembly 13, and an outer sealing gasket 14. The fire hydrant body 2 includes a main body seat 15 connected to the fire hydrant seat 1 and a water outlet end 16. The main body seat 15 has a main through hole 17, and the water outlet end 16 has a water outlet hole 1 perpendicularly communicating with the main through hole 17. 8. The water outlet connector 6 includes a threaded portion 20, an end seal portion 21, and an outer portion 22 arranged sequentially. The water outlet connector 6 has a water inlet hole 23. The inner wall of the outlet end 16 of the faucet body has an internal thread 27, which is threaded to the threaded portion 20. The end seal portion 21 abuts against the end of the outlet end 16. The outer wall of the outer portion 22 has a locking groove 24. The quick-connect cap assembly 13 includes a locking head 30, a locking lifting rod 31, and a locking spring 32. The locking lifting rod 31 includes a lifting rod body 33 and a lifting spring. The pull rod limiting part 34, the water outlet cap 10 includes a cap end sealing part 36 and a cap covering part 37, the inner wall of the cap covering part 37 is provided with a cap positioning groove 38, the cap positioning groove 38 is provided with a cap through hole 39 communicating with the outside, the end of the pull rod body 33 passes through the cap through hole 39 and is connected to the lock head 30, the locking spring 32 is sleeved on the pull rod body 33, one end of which abuts against the cap positioning groove 38 and the other end of which abuts against the lock head 30, the lock head 30 is placed in the locking groove 24 of the middle connector, the outer sealing gasket 14 includes an outer gasket that fits against the inner wall of the cap end sealing part 36. The sealing gasket end seal 40 and the outer sealing gasket cover 41 are attached to the inner wall of the cap cover 37. The outer sealing gasket cover 41 wraps around the outer part 22 of the middle connector. The outer sealing gasket cover 41 is provided with an outer sealing gasket clearance hole 42 for the locking spring 32 to move. The water outlet cap 10 is connected to the water outlet middle connector 6 by a pull-type locking and unlocking method. Simply lift the lifting rod 33, and the lock head 30 will disengage from the locking groove 24 of the middle connector, and the water outlet cap 10 can be quickly removed. This facilitates operation and improves emergency response speed and efficiency. The outer sealing gasket 14 effectively ensures the sealing and waterproofing of the water outlet cap 10 joint.

[0022] The outer sealing gasket end cap 40 is provided with an outer sealing gasket foot 43 at its outer end, the outer sealing gasket cover 41 is provided with an outer sealing gasket limiting part 44 at its outer end, the inner wall of the cap end cap 36 is provided with a cap locking opening 45 for engaging the outer sealing gasket foot 43, and the inner wall of the cap cover 37 is provided with a cap limiting groove 46 that mates with the outer sealing gasket limiting part 44. The outer sealing gasket 14 and the water outlet cap 10 are firmly connected and not easy to fall off, improving the sealing performance and reliability of the connection.

[0023] The locking lifting rod 31 also includes a lifting rod handle 35. The outer wall of the cover 37 is provided with a cover guide groove 48 for the lifting rod limiting part 34 to receive, which facilitates the operator to open and close the rod and improves the efficiency of use.

[0024] The water outlet connector assembly 3 also includes an inner sealing gasket 7. The inner wall of the hydrant body outlet end 16 is provided with an inner baffle 25, an inner positioning groove 26, and an inner thread 27 from the inside to the outside. The front end of the threaded part 20 of the connector is provided with a front positioning groove 49. The inner sealing gasket 7 is placed in the inner positioning groove 26 and the front positioning groove 49 of the connector, which improves the sealing between the hydrant body 2 and the water outlet connector 6. The inner baffle 25 can reduce the impact of water flow on the front end of the water outlet connector 6, thereby improving the stability and reliability of the connection of the water outlet connector 6.

[0025] The outlet water connector assembly 3 also includes an anti-slip screw 8. The outlet end 16 of the plug body is provided with an outlet threaded hole 51 at the internal thread 27 of the plug body, which is perpendicular to the outlet hole 18 of the plug body. The middle part of the outer wall of the threaded part 20 of the middle connector is provided with a middle connector anti-slip groove 52. The anti-slip screw 8 is threadedly connected to the outlet threaded hole 51, and its end abuts in the middle connector anti-slip groove 52, which further improves the stability of the outlet water connector 6 connection and prevents it from loosening due to water flow after long-term use.

[0026] The water outlet cap assembly 4 also includes a cap connecting chain 12. The main seat of the plug body 15 is provided with a chain connecting block 54 below the water outlet end 16 of the plug body. One end of the cap connecting chain 12 is connected to the chain connecting block 54 and the other end is connected to the water outlet cap 10 to prevent the water outlet cap 10 from being lost after being unscrewed, thereby improving the safety of use.

[0027] 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 high-sealing quick-connect fire hydrant, comprising a fire hydrant seat (1), a fire hydrant body (2), a water outlet connector assembly (3) disposed at the end of the fire hydrant body (2), and a water outlet cap assembly (4), characterized in that: The water outlet connector assembly (3) includes a water outlet connector (6), the water outlet cap assembly (4) includes a water outlet cap (10), a cap quick-connect assembly (13), and an outer sealing gasket (14), the fire hydrant body (2) includes a main body seat (15) connected to the fire hydrant seat (1) and a water outlet end (16), the main body seat (15) is provided with a main through hole (17), and the water outlet end (16) is provided with a water outlet hole (18) perpendicularly connected to the main through hole (17), the water outlet connector (6) includes a central connector thread arranged sequentially. The connector consists of a central connector (20), a central connector end seal (21), and a central connector outer connector (22). The central connector water outlet (6) has a central connector water flow hole (23). The inner wall of the outlet end (16) of the faucet body has a faucet internal thread (27). The faucet internal thread (27) is threadedly connected to the central connector threaded part (20). The central connector end seal (21) abuts against the end of the outlet end (16) of the faucet body. The outer wall of the central connector outer connector (22) has a central connector locking groove (24). The quick-connect assembly (13) includes a lock head (30), a locking lifting rod (31), and a locking spring. (32) The locking lifting rod (31) includes a lifting rod body (33) and a lifting rod limiting part (34). The water outlet cap (10) includes a cap end sealing part (36) and a cap covering part (37). The inner wall of the cap covering part (37) is provided with a cap positioning groove (38). The cap positioning groove (38) is provided with a cap through hole (39) communicating with the outside. The end of the lifting rod body (33) passes through the cap through hole (39) and is connected to the lock head (30). The locking spring (32) is sleeved on the lifting rod body (33), and one end of it abuts against the lock head (30). The end cap positioning groove (38) is located at one end and abuts against the lock head (30). The lock head (30) is placed in the locking groove (24) of the middle connector. The outer sealing gasket (14) includes an outer sealing gasket end cap (40) that adheres to the inner wall of the end cap end cap (36) and an outer sealing gasket cover (41) that adheres to the inner wall of the end cap cover (37). The outer sealing gasket cover (41) wraps around the outer part of the middle connector (22). The outer sealing gasket cover (41) is provided with an outer sealing gasket clearance hole (42) for the locking spring (32) to move.

2. The high-sealing quick-connect fire hydrant according to claim 1, characterized in that: The outer sealing gasket end seal (40) is provided with an outer sealing gasket foot (43) at its outer end, the outer sealing gasket cover (41) is provided with an outer sealing gasket limiting part (44) at its outer end, the inner wall of the cap end seal (36) is provided with a cap opening (45) for the outer sealing gasket foot (43) to engage, and the inner wall of the cap cover (37) is provided with a cap limiting groove (46) that engages with the outer sealing gasket limiting part (44).

3. The high-sealing quick-connect fire hydrant according to claim 1, characterized in that: The locking lifting rod (31) also includes a lifting rod handle (35), and the outer wall of the cover cover (37) is provided with a cover guide groove (48) for the lifting rod limiting part (34) to receive.

4. The high-sealing quick-connect fire hydrant according to claim 1, characterized in that: The outlet water connector assembly (3) also includes an inner sealing gasket (7). The inner wall of the outlet end (16) of the plug body is provided with an inner stop (25), an inner positioning groove (26) and an inner thread (27) from the inside to the outside. The front end of the threaded part (20) of the connector is provided with a front positioning groove (49). The inner sealing gasket (7) is placed in the inner positioning groove (26) and the front positioning groove (49) of the connector.

5. The high-sealing quick-connect fire hydrant according to claim 1, characterized in that: The outlet water connector assembly (3) also includes an anti-slip screw (8). The outlet end (16) of the plug body has an outlet threaded hole (51) at the internal thread (27) of the plug body that is perpendicular to the outlet hole (18) of the plug body. The middle part of the outer wall of the threaded part (20) of the middle connector has an anti-slip groove (52). The anti-slip screw (8) is threadedly connected to the outlet threaded hole (51), and its end abuts against the anti-slip groove (52) of the middle connector.

6. The high-sealing quick-connect fire hydrant according to claim 1, characterized in that: The water outlet cap assembly (4) also includes a cap connecting chain (12). The main seat of the plug body (15) is provided with a chain connecting block (54) below the water outlet end (16) of the plug body. One end of the cap connecting chain (12) is connected to the chain connecting block (54) and the other end is connected to the water outlet cap (10).

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