Fire hose fastening type connector
By designing the locking block and slot structure and transmission components, the problem of unstable fastening of fire hose joints caused by magnetic corrosion is solved, enabling rapid installation and disassembly and ensuring the reliability and durability of fire-fighting equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU SHUANGXING FIRE TECH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-04-24
AI Technical Summary
Existing fire hose connectors rely on the repulsive force of strong magnets for fastening. However, the magnetism is easily weakened by water corrosion, making it impossible to maintain a tight connection for a long time. Furthermore, the magnets need to be replaced frequently, which makes it difficult to respond to emergencies in a timely manner.
It adopts a block and slot structure, combined with elastic elements and transmission components. The block and slot can be engaged and disengaged by rotating the first and second joints. The elastic elements and button operation enable quick installation and disassembly.
It enables rapid installation and disassembly of fire hose connectors, ensuring timely connection and separation in emergencies. It is easy to operate, has good sealing performance, and extends the service life of the equipment.
Smart Images

Figure CN224162235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire-fighting equipment technology, specifically a fire hose fastening connector. Background Technology
[0002] The joint on a fire hose is a key component used to connect fire hoses to other fire-fighting equipment, ensuring that water can be smoothly transmitted in the fire protection system. This type of joint is called a fire hose connector, and its design allows fire hoses to be connected quickly and securely.
[0003] For example, Chinese patent CN219388953U, entitled "A Fire Hose Connector," includes a male connector, a female connector, and a fire hose. The female connector has a slot for accommodating an embedded protrusion. A strong magnetic block is slidably connected to the protrusion. A second strong magnetic block is located at the bottom of the slot, abutting against the first strong magnetic block. In this invention, the protrusion and the first strong magnetic block are embedded in the slot and simultaneously abut against the second strong magnetic block. Due to the obstruction of the inner wall of the slot, the first strong magnetic block will not move even when it abuts. By continuing to press, the first strong magnetic block pushes the second strong magnetic block backward. When the second strong magnetic block moves to the position opposite the limiting groove and is no longer obstructed by the inner wall of the slot, the second strong magnetic block will be pushed and reset by a spring. At the same time, the pushing force and the repulsive force of the magnetic blocks push the first strong magnetic block into the limiting groove, thereby restricting movement. This allows for quick installation; installation can be achieved simply by aligning the protrusion and the protrusion.
[0004] While the fire hose connector in the aforementioned patent is practical and convenient, it also has shortcomings. The patent mainly relies on the mutual repulsion of strong magnets to tighten the fire hose connector. If the strong magnets are corroded by water flow repeatedly or over a long period of time, their magnetism will gradually disappear, making it impossible to tighten the connector. Furthermore, the strong magnets need to be replaced frequently, which cannot respond to emergencies in a timely manner. Utility Model Content
[0005] The purpose of this utility model is to provide a fire hose fastening connector to overcome the shortcomings of the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: The fire hose fastening connector includes a first connector and a second connector. Two connecting blocks are symmetrically arranged at one end of the second connector. Each of the two connecting blocks has a locking block and an insertion hole. Two locking slots are symmetrically arranged inside the first connector. The two locking blocks and the two locking slots are engaged in a one-to-one engagement. Each of the two locking slots has a first sliding groove. An insertion block is slidably connected to each of the two first sliding grooves via an elastic element. The bottoms of the two insertion blocks are inclined. The two locking blocks and the two locking slots are engaged in a one-to-one engagement. The bottoms of the insert blocks are abutted in a corresponding manner, and the two insert blocks are inserted into the corresponding sockets. Two buttons are symmetrically slidably connected on the first connector. Two transmission components are symmetrically arranged inside the first connector. Each of the two transmission components includes a connecting rod, a first rack, a gear meshing with the first rack, and a second rack meshing with the gear. One side of the connecting rod is fixedly connected to the second rack. The gear is rotatably connected inside the first connector. The tops of the two connecting rods are fixedly connected to the two buttons in a corresponding manner. One side of each of the two first racks is fixedly connected to the two insert blocks in a corresponding manner.
[0007] Furthermore, one end of the first connector is symmetrically provided with two arc-shaped grooves, and the two connecting blocks are slidably connected to the two arc-shaped grooves in a one-to-one correspondence, and the two arc-shaped grooves are connected to the two slots in a one-to-one correspondence.
[0008] Furthermore, a sealing gasket is provided at the entrance of both slots, and a through hole is provided on both sealing gaskets.
[0009] Furthermore, two arrow marks are symmetrically provided on the first connector.
[0010] Furthermore, both elastic elements include a telescopic rod and a spring sleeved on the telescopic rod, and one end of each telescopic rod is fixedly connected to the top of the two inserts in a one-to-one correspondence, and the other end of each telescopic rod is fixedly connected to the groove wall of each of the two first sliding grooves in a one-to-one correspondence.
[0011] Compared with the prior art, the beneficial effects provided by this utility model are as follows: the fire hose fastening connector involves the relative rotation of the first connector and the second connector. During the engagement of the locking block and the locking groove, one end of the locking block pushes the inclined bottom of the insert block, causing the insert block to move away from the center of the first connector. Then, through the elastic element, the insert block moves in the opposite direction and inserts into the insertion hole of the locking block, thus fastening the first connector and the second connector. This operation allows for quick installation and timely response to emergencies. During disassembly, pressing the button causes the button to move the second rack through the connecting rod. Through the transmission of the gear and the first rack, the insert block is disengaged from the insertion hole, and the second connector is reversed, which also enables quick disassembly. The operation is convenient and simple. Attached Figure Description
[0012] 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.
[0013] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;
[0014] Figure 2 Top view of the overall structure provided for an embodiment of this utility model;
[0015] Figure 3 for Figure 2 Sectional view at point AA;
[0016] Figure 4 for Figure 3 Enlarged view of point B in the middle;
[0017] Figure 5 A schematic diagram of the structure of the first connector provided in an embodiment of this utility model;
[0018] Figure 6 A schematic diagram of the structure of the second connector provided in an embodiment of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. First connector; 2. Second connector; 3. Arrow mark; 4. Button; 5. Connecting block; 6. Locking block; 7. Insertion hole; 8. Arc groove; 9. Sealing gasket; 10. Locking groove; 11. Insertion block; 12. First rack; 13. First slide groove; 14. Telescopic rod; 15. Spring; 16. Gear; 17. Second rack; 18. Connecting rod; 19. Second slide groove. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-6The present invention provides a technical solution for a fire hose fastening connector, comprising a first connector 1 and a second connector 2. Two connecting blocks 5 are symmetrically arranged at one end of the second connector 2. Each connecting block 5 has a locking block 6, and each locking block 6 has an insertion hole 7. Two locking grooves 10 are symmetrically arranged inside the first connector 1. The two locking blocks 6 and the two locking grooves 10 are engaged in a one-to-one correspondence. Each locking groove 10 has a first sliding groove 13, and each first sliding groove 13 is slidably connected to an insertion block 11 via an elastic element. The bottoms of both insertion blocks 11 are inclined. The bottoms of the two locking blocks 6 and the two insert blocks 11 are respectively engaged with each other, and the two insert blocks 11 are respectively engaged with the corresponding insertion holes 7. Two buttons 4 are symmetrically slidably connected on the first connector 1. Two transmission components are symmetrically arranged inside the first connector 1. Each transmission component includes a connecting rod 18, a first rack 12, a gear 16 meshing with the first rack 12, and a second rack 17 meshing with the gear 16. One side of the connecting rod 18 is fixedly connected to the second rack 17, and the gear 16 is rotatably connected inside the first connector 1. The tops of the two connecting rods 18 are respectively fixedly connected to the two buttons 4. The two first racks 12 are fixedly connected to the two insert blocks 11 one by one. Specifically, the first connector 1 has two symmetrically opened second sliding grooves 19, and the two connecting rods 18 are slidably connected to the two second sliding grooves 19 one by one. The second sliding grooves 19 play a guiding role. As the first connector 1 and the second connector 2 rotate relative to each other, during the process of the locking block 6 and the locking groove 10, one end of the locking block 6 pushes the inclined bottom of the insert block 11, so that the insert block 11 moves away from the center of the first connector 1. Then, the elastic element makes the insert block 11 reverse. Insert the movable insert block 6 into the socket 7, so that the first connector 1 and the second connector 2 are securely connected. This operation can achieve quick installation and can respond to emergencies in a timely manner. When disassembling, press the button 4. The button 4 drives the second rack 17 to move through the connecting rod 18. The second rack 17 drives the gear 16 to rotate. The gear 16 drives the first rack 12 to move away from the center of the first connector 1, so that the insert block 11 is disengaged from the socket 7. Then reverse the second connector 2 to disengage the insert block 6 from the slot 10. This can achieve quick disassembly and is convenient and simple to operate.
[0022] As a preferred technical solution, two arc-shaped grooves 8 are symmetrically provided at one end of the first connector 1, and the two connecting blocks 5 are slidably connected to the two arc-shaped grooves 8 in a one-to-one correspondence, and the two arc-shaped grooves 8 are connected to the two slots 10 in a one-to-one correspondence. Specifically, the design of the arc-shaped grooves 8 plays a guiding role, so that the first connector 1 and the second connector 2 can rotate relative to each other along the path of the arc-shaped grooves 8, so that the slot 6 and the slot 10 are correctly engaged.
[0023] As a preferred technical solution, a sealing gasket 9 is provided at the entrance of each of the two slots 10, and a through hole is provided on each of the two sealing gaskets 9. Specifically, the through hole is designed to facilitate the passage of the corresponding card block 6, and the sealing gasket 9 improves the sealing performance of the device and extends the service life of the device.
[0024] As a preferred technical solution, two arrow marks 3 are symmetrically provided on the first connector 1. Specifically, the arrow marks 3 point in the direction of the end face of the first connector 1 and the second connector 2 to be connected. The arrow marks 3 enable the operator to assemble quickly and correctly.
[0025] As a preferred technical solution, both elastic elements include a telescopic rod 14 and a spring 15 sleeved on the telescopic rod 14. One end of the two telescopic rods 14 is fixedly connected to the top of the two insert blocks 11 in a corresponding manner, and the other end of the two telescopic rods 14 is fixedly connected to the groove walls of the two first sliding grooves 13 in a corresponding manner. Specifically, the telescopic rod 14 plays a guiding role, so that the insert block 11 can be accurately inserted into the corresponding insertion hole 7. After one end of the locking block 6 does not abut against the bottom of the insert block 11, the spring 15 can make the insert block 11 insert into the corresponding insertion hole 7.
[0026] Working principle: This fire hose fastening connector first aligns the first connector 1 and the second connector 2 correctly according to arrow mark 3. Then, by rotating the first connector 1 and the second connector 2 relative to each other, the connecting block 5 drives the locking block 6 to rotate along the path of the arc groove 8, so that the locking block 6 engages with the locking groove 10. One end of the locking block 6 pushes the inclined bottom of the insertion block 11, so that the insertion block 11 moves away from the center of the first connector 1. Then, through the cooperation of the spring 15 and the telescopic rod 14, the insertion block 11 moves in the opposite direction and inserts into the insertion hole 7 of the locking block 6, so that the first connector 1 and the second connector 2 are fastened together. This operation can achieve quick installation and can respond to emergencies in a timely manner. When disassembling, by pressing the button 4, the button 4 drives the second rack 17 to move through the connecting rod 18. The second rack 17 drives the gear 16 to rotate. The gear 16 drives the first rack 12 to move away from the center of the first connector 1, so that the insertion block 11 disengages from the insertion hole 7. Then, the second connector 2 is reversed, so that the locking block 6 disengages from the locking groove 10, thus achieving quick disassembly. The operation is convenient and simple.
[0027] 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 fire hose fastening connector, characterized in that, The device includes a first connector (1) and a second connector (2). Two connecting blocks (5) are symmetrically arranged at one end of the second connector (2). Each connecting block (5) has a locking block (6), and each locking block (6) has an insertion hole (7). Two slots (10) are symmetrically arranged inside the first connector (1). The two locking blocks (6) and the two slots (10) are engaged in a one-to-one correspondence. Each slot (10) has a first sliding groove (13). Each first sliding groove (13) has an insertion block (11) slidably connected to it via an elastic element. The bottoms of both insertion blocks (11) are inclined. The bottoms of the two locking blocks (6) and the two insertion blocks (11) abut against each other in a one-to-one correspondence. The blocks (11) are inserted into the sockets (7) in a one-to-one correspondence. Two buttons (4) are symmetrically slidably connected on the first connector (1). Two transmission components are symmetrically arranged inside the first connector (1). Both transmission components include a connecting rod (18), a first rack (12), a gear (16) meshing with the first rack (12), and a second rack (17) meshing with the gear (16). One side of the connecting rod (18) is fixedly connected to the second rack (17). The gear (16) is rotatably connected inside the first connector (1). The tops of the two connecting rods (18) are fixedly connected to the two buttons (4) in a one-to-one correspondence. One side of the two first racks (12) is fixedly connected to the two insert blocks (11) in a one-to-one correspondence.
2. The fire hose fastening connector according to claim 1, characterized in that, Two arc-shaped grooves (8) are symmetrically provided at one end of the first connector (1), and the two connecting blocks (5) are slidably connected to the two arc-shaped grooves (8) in a one-to-one correspondence, and the two arc-shaped grooves (8) are connected to the two slots (10) in a one-to-one correspondence.
3. A fire hose fastening connector according to claim 2, characterized in that, A sealing gasket (9) is provided at the entrance of both slots (10), and a through hole is provided on both sealing gaskets (9).
4. A fire hose fastening connector according to claim 1, characterized in that, Two arrow marks (3) are symmetrically provided on the first connector (1).
5. A fire hose fastening connector according to claim 1, characterized in that, Both elastic elements include a telescopic rod (14) and a spring (15) sleeved on the telescopic rod (14). One end of each telescopic rod (14) is fixedly connected to the top of the two inserts (11) in a one-to-one correspondence, and the other end of each telescopic rod (14) is fixedly connected to the groove wall of each of the two first sliding grooves (13) in a one-to-one correspondence.
Citation Information
Patent Citations
Fire hose joint
CN219388953U