Automatic locking type double-connector fire hose connecting assembly

Abstract

The utility model relates to the technical field of fire-fighting equipment, in particular to an automatic locking type double-connector fire hose connecting assembly which comprises a first connector, a second connector, a first hose and a second hose. Locking mechanisms used for limiting the positions of the first water hose and the second water hose are arranged at the two ends of the mounting sleeve correspondingly, and the limiting blocks are located in the positioning grooves. When the limiting block is inserted into the positioning groove, pressure can be applied to the inserting plate, the inserting plate applies pressure to the reset spring through the baffle, the reset spring is made to contract until one end of the inserting plate slides into the clamping groove in one side of the limiting block, the reset spring returns, and the inserting plate and the limiting block are connected in a clamped mode. And therefore, the mounting sleeve can lock the first water hose and the second water hose at one end of the first connector and one end of the second connector, the purpose of automatic locking can be achieved, and through the design of the first connector and the second connector, the practicability of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, specifically to an automatic locking dual-interface fire hose connection assembly. Background Technology

[0002] Fire hoses are flexible tubes used to transport high-pressure water or flame-retardant liquids such as foam. Fire hoses are divided into two categories: lined fire hoses and leak-proof fire hoses. Traditional fire hoses have a rubber inner lining and an outer layer wrapped in woven linen. Advanced fire hoses are made of polymer materials such as polyurethane.

[0003] Fire hose couplings are a common type of interface used in firefighting operations, primarily for connecting fire hoses when extending them. They are quick-connect interfaces formed by the interlocking grooves within two pairs of clips, offering advantages such as easy connection and rapid release. They are used to connect fire hoses to each other, fire trucks, fire hydrants, and nozzles to deliver water or foam mixtures for firefighting. They consist of a body, a sealing ring seat, and a rubber sealing ring, among other components. The sealing ring seat has grooves for securing the fire hose. Existing fire hose connection assemblies suffer from cumbersome operation and lack of locking mechanisms, limiting their practicality.

[0004] Therefore, we propose an automatic locking dual-interface fire hose connection assembly. Utility Model Content

[0005] The main purpose of this utility model is to provide an automatic locking dual-port fire hose connection assembly. The limiting block is inclined at one end near the mounting sleeve. During the insertion of the limiting block into the positioning groove, it can apply pressure to the insert plate. The insert plate applies pressure to the return spring through the baffle, causing the return spring to contract until one end of the insert plate slides into the slot on one side of the limiting block. The return spring returns to its original position, so that the insert plate is engaged with the limiting block. Thus, the mounting sleeve can lock the first and second fire hoses at one end of the first and second joints, achieving the purpose of automatic locking and effectively solving the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An automatic locking dual-port fire hose connection assembly includes a first connector, a second connector, a first hose, and a second hose. One end of the first connector and one end of the second connector are snapped together. The first hose is mounted on the end of the first connector away from the second connector, and the second hose is mounted on the end of the second connector away from the first connector. Insert pipes are fixedly connected to the first connector and the second connector at the center of the ends near the first hose and the second hose, respectively. Mounting sleeves are fixedly connected to the ends of the first connector and the second connector near the insert pipes. The mounting sleeves are placed on the insert pipes. The mounting sleeves have a circular structure. A slot is provided between the mounting sleeves and the insert pipes. Locking mechanisms for limiting the positions of the first hose and the second hose are provided at both ends of the mounting sleeves.

[0008] The locking mechanism includes a connecting seat, a pull plate, a return spring, a baffle, a insert plate, and a pull rod. The inner walls of both ends of the mounting sleeve are provided with positioning grooves, and the connecting seats are fixedly installed on the outer sides of both ends of the mounting sleeve at the corresponding positioning grooves.

[0009] Both the first and second water hoses have plugs fixedly connected to one end. Limiting blocks are fixedly connected to the outer sides of the plugs at the corresponding positioning grooves, and one end of the plug is inserted into the slot.

[0010] By adopting the above technical solution, the limiting block is inclined at one end near the mounting sleeve. During the insertion of the limiting block into the positioning groove, it can apply pressure to the insert plate. The insert plate applies pressure to the reset spring through the baffle, causing the reset spring to contract until one end of the insert plate slides into the slot on one side of the limiting block. The reset spring returns to its original position, causing the insert plate to engage with the limiting block. This allows the mounting sleeve to lock the first water hose and the second water hose at one end of the first connector and the second connector, thus achieving the purpose of automatic locking.

[0011] Specifically, the limiting block is located in the positioning groove, and the side of the limiting block away from the plug-in has a slot that matches one end of the plug-in plate.

[0012] Specifically, the positioning groove has a limiting groove on the inner wall of the end near the connecting seat to limit the position of the insert plate, and the connecting seat has an installation cavity.

[0013] Specifically, a baffle is slidably provided inside the mounting cavity, and the end of the insert plate away from the positioning groove passes through the inner wall of the limiting groove and is vertically inserted into one side of the baffle.

[0014] Specifically, a return spring is fixedly installed at both ends of the baffle away from the insert plate, and the end of the return spring away from the baffle is fixedly connected to the inner wall of one end of the mounting cavity.

[0015] Specifically, a pull rod is vertically inserted into the center of the baffle near the reset spring, and the end of the pull rod away from the baffle passes through the inner wall of the mounting cavity and is vertically inserted into the center of the pull plate.

[0016] The beneficial effects of this utility model are as follows: The automatic locking dual-port fire hose connection assembly of this utility model has a limiting block that is inclined near the end of the mounting sleeve. When the limiting block is inserted into the positioning groove, it can apply pressure to the insert plate. The insert plate applies pressure to the return spring through the baffle, causing the return spring to contract until one end of the insert plate slides into the slot on one side of the limiting block. The return spring returns to its original position, so that the insert plate is engaged with the limiting block. This allows the mounting sleeve to lock the first hose and the second hose at one end of the first joint and the second joint, thus achieving the purpose of automatic locking.

[0017] Pulling the pull plates located at both ends of the mounting sleeve causes the pull plates to press against the return spring via the pull rod and baffle, thereby pulling the insert plate out of the slot and the insert out of the slot. Then, releasing the pull plate causes the return spring to return to its original position. This method has the advantage of simple operation. The design of the first and second connectors improves the practicality of the device. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a perspective view of the plug-in of this utility model;

[0021] Figure 3 This is a schematic diagram of the mounting sleeve structure of this utility model;

[0022] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0023] In the diagram: 1. First connector; 2. Second connector; 3. First water hose; 4. Second water hose; 5. Mounting sleeve; 6. Insert pipe; 7. Locking mechanism; 8. Insert; 9. Limiting block; 10. Slot; 11. Positioning groove; 12. Connecting seat; 13. Card slot; 14. Pull plate; 15. Mounting cavity; 16. Return spring; 17. Baffle; 18. Insert plate; 19. Limiting groove; 20. Pull rod. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] As one embodiment of this utility model, such as Figures 1-4As shown, the automatic locking dual-interface fire hose connection assembly of this utility model includes a first connector 1, a second connector 2, a first hose 3, and a second hose 4. One end of the first connector 1 and one end of the second connector 2 are snapped together. The first hose 3 is installed at the end of the first connector 1 away from the second connector 2, and the second hose 4 is installed at the end of the second connector 2 away from the first connector 1. Insert pipes 6 are fixedly connected to the middle of the ends of the first connector 1 and the second connector 2 near the ends of the first hose 3 and the second hose 4. Mounting sleeves 5 are fixedly connected to the ends of the first connector 1 and the second connector 2 near the ends of the insert pipes 6. The mounting sleeves 5 are fitted onto the insert pipes 6. The mounting sleeves 5 have a circular structure. A slot 10 is provided between the mounting sleeves 5 and the insert pipes 6. Locking mechanisms 7 for limiting the positions of the first hose 3 and the second hose 4 are provided at both ends of the mounting sleeves 5.

[0026] The locking mechanism 7 includes a connecting seat 12, a pull plate 14, a return spring 16, a baffle 17, a insert plate 18, and a pull rod 20. The inner walls of both ends of the mounting sleeve 5 are provided with positioning grooves 11, and the connecting seat 12 is fixedly installed on the outer sides of both ends of the mounting sleeve 5 at the corresponding positioning grooves 11.

[0027] The first water hose 3 and the second water hose 4 are both fixedly connected to one end of a plug 8. The outer sides of both ends of the plug 8 are fixedly connected to the positioning grooves 11, and one end of the plug 8 is inserted into the slot 10.

[0028] In use, the plug 8 is inserted into the slot 10 between the mounting sleeve 5 and the insertion tube 6. At the same time, the limiting block 9 on the outside of the plug 8 is aligned with the positioning groove 11 on the inner wall of the mounting sleeve 5. The limiting block 9 is inserted into the positioning groove 11. The limiting block 9 is tilted near the end of the mounting sleeve 5. During the insertion of the limiting block 9 into the positioning groove 11, it applies pressure to the insertion plate 18. The insertion plate 18 applies pressure to the return spring 16 through the baffle 17, causing the return spring 16 to contract until one end of the insertion plate 18 slides into the slot 13 on one side of the limiting block 9. The return spring 16 returns to its original position, so that the insertion plate 18 and the limiting block 9 are engaged. Thus, the mounting sleeve 5 can lock the first water hose 3 and the second water hose 4 at one end of the first connector 1 and the second connector 2.

[0029] The present invention also includes that the limiting block 9 is located in the positioning groove 11, and the limiting block 9 is provided with a slot 13 on the side away from the plug-in 8 that is adapted to one end of the plug-in plate 18.

[0030] The present invention also includes a limiting groove 19 for limiting the position of the insert plate 18 on the inner wall of the positioning groove 11 near the connecting seat 12, and an installation cavity 15 is provided in the connecting seat 12.

[0031] The present invention also includes a baffle 17 slidably disposed in the mounting cavity 15, and the insert plate 18 having one end away from the positioning groove 11 passing through the inner wall of the limiting groove 19 and vertically inserted into one side of the baffle 17.

[0032] The present invention also includes that both ends of the baffle 17 away from the insert plate 18 are fixedly installed with a return spring 16, and the end of the return spring 16 away from the baffle 17 is fixedly connected to the inner wall of one end of the mounting cavity 15.

[0033] The present invention also includes a pull rod 20 vertically inserted into the center of the side of the baffle 17 near the reset spring 16, and the end of the pull rod 20 away from the baffle 17 passes through the inner wall of the mounting cavity 15 and is vertically inserted into the center of the side of the pull plate 14.

[0034] In use, one end of the first connector 1 and one end of the second connector 2 are snapped together. Then, the first water hose 3 and the second water hose 4, which are equipped with the plug 8, are respectively installed at one end of the first connector 1 and the second connector 2. The plug 8 is inserted into the slot 10 between the mounting sleeve 5 and the insert 6. At the same time, the limiting block 9 on the outside of the plug 8 is aligned with the positioning groove 11 on the inner wall of the mounting sleeve 5. The limiting block 9 is inserted into the positioning groove 11. The limiting block 9 is inclined near the end of the mounting sleeve 5. During the process of inserting the limiting block 9 into the positioning groove 11, it applies pressure to the insert plate 18. The insert plate 18 applies pressure to the return spring 16 through the baffle 17, causing the return spring 16 to contract until one end of the insert plate 18 slides into the slot 13 on one side of the limiting block 9. The return spring 16 returns to its original position, so that the insert plate 18 is snapped with the limiting block 9. Thus, the mounting sleeve 5 can lock the first water hose 3 and the second water hose 4 at one end of the first connector 1 and the second connector 2.

[0035] When it is necessary to remove the first water hose 3 and the second water hose 4 from one end of the first connector 1 and the second connector 2 respectively, the firefighter pulls the pull plates 14 located at both ends of the mounting sleeve 5 with both hands. The pull plates 14 squeeze the return spring 16 through the pull rod 15 and the baffle 17, so that the insert plate 18 can be pulled out from the slot 13 and the plug 8 can be pulled out from the slot 10. Then the firefighter releases his hands, and the return spring 16 returns to its original position.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic locking dual-interface fire hose connection assembly, characterized in that, Includes a first connector (1), a second connector (2), a first water hose (3), and a second water hose (4). One end of the first connector (1) and one end of the second connector (2) are snapped together. The first water hose (3) is installed on the end of the first connector (1) away from the second connector (2), and the second water hose (4) is installed on the end of the second connector (2) away from the first connector (1). A tube (6) is fixedly connected to the middle of the ends of the first connector (1) and the second connector (2) near the ends of the first water hose (3) and the second water hose (4). An installation sleeve (5) is fixedly connected to the ends of the first connector (1) and the second connector (2) near the ends of the tube (6). The installation sleeve (5) is fitted on the tube (6). The installation sleeve (5) has a circular structure. A slot (10) is provided between the installation sleeve (5) and the tube (6). Locking mechanisms (7) for limiting the positions of the first water hose (3) and the second water hose (4) are provided at both ends of the installation sleeve (5). The locking mechanism (7) includes a connecting seat (12), a pull plate (14), a return spring (16), a baffle (17), a insert plate (18), and a pull rod (20). The inner walls of both ends of the mounting sleeve (5) are provided with positioning grooves (11), and the connecting seat (12) is fixedly installed on the outer sides of both ends of the mounting sleeve (5) at the corresponding positioning grooves (11). The first water hose (3) and the second water hose (4) are both fixedly connected to one end of a plug (8). The plug (8) is fixedly connected to the positioning groove (11) on the outer side of both ends of the plug (8). One end of the plug (8) is inserted into the slot (10).

2. The automatic locking dual-interface fire hose connection assembly according to claim 1, characterized in that, The limiting block (9) is located in the positioning groove (11), and the limiting block (9) has a slot (13) on the side away from the plug-in (8) that is adapted to one end of the plug-in plate (18).

3. The automatic locking dual-interface fire hose connection assembly according to claim 1, characterized in that, The positioning groove (11) has a limiting groove (19) on the inner wall of one end near the connecting seat (12) for limiting the position of the insert plate (18), and the connecting seat (12) has an installation cavity (15).

4. The automatic locking dual-interface fire hose connection assembly according to claim 3, characterized in that, A baffle (17) is slidably provided in the mounting cavity (15), and the insert plate (18) is inserted vertically into one side of the baffle (17) through the inner wall of the limiting groove (19) at one end away from the positioning groove (11).

5. The automatic locking dual-interface fire hose connection assembly according to claim 4, characterized in that, Both ends of the baffle (17) away from the insert plate (18) are fixedly installed with reset springs (16), and the end of the reset spring (16) away from the baffle (17) is fixedly connected to the inner wall of one end of the mounting cavity (15).

6. The automatic locking dual-interface fire hose connection assembly according to claim 5, characterized in that, A pull rod (20) is vertically inserted into the center of the baffle (17) near the reset spring (16). The end of the pull rod (20) away from the baffle (17) passes through the inner wall of the mounting cavity (15) and is vertically inserted into the center of the pull plate (14).

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