Quick connecting device for fire hose

Abstract

The utility model discloses a quick connecting device for a fire hose, which relates to the technical field of fire-fighting equipment and comprises a first connector and a second connector, a first connecting ring is welded on the left side wall of the first connector, and a second connecting ring is connected on the right side wall of the second connector. A first fire hose is fixedly connected to the left side wall of the first connecting ring, a second fire hose is fixedly connected to the right side wall of the second connecting head, a mounting groove is formed in the right side wall of the first connecting head, an L-shaped clamping block is mounted on one side wall of the mounting groove, and a mounting block is fixedly connected to the left side wall of the second connecting head. By arranging the first connector and the second connector, the mounting block is inserted into the mounting groove, and the L-shaped clamping block is connected with the L-shaped clamping groove in a clamping manner, so that the first connector and the second connector are quickly positioned and connected, the time for connecting the two fire hoses is shortened, and quick fire-fighting operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a fire hose quick connection device. Background Art

[0002] Firefighting is related to people's life safety. The use of firefighting equipment affects the speed of firefighting personnel. Among them, the fire hose is the most basic equipment. The fire hose is a hose used to transport flame-retardant liquids such as high-pressure water or foam. Traditional fire hoses are lined with rubber and wrapped with linen braids on the outer surface. Advanced fire hoses are made of polymer materials such as polyurethane. There are metal joints at both ends of the fire hose, which can be connected to another hose to extend the distance or connected to a nozzle to increase the liquid spray pressure.

[0003] Both ends of the fire hose are provided with connectors. Through the connection of the connectors, multiple fire hoses can be spliced ​​together, making the fire hose suitable for different fire situations. However, the fire hoses currently on the market still have some shortcomings. For example, it is not convenient to quickly locate and connect the two connectors, and then it is not convenient to fix the two connectors later, which increases the time for connecting the two fire hoses and is not conducive to the rapid progress of firefighting operations. Secondly, the connection sealing performance of the two connectors is poor, resulting in a small amount of water overflowing from the inside, thereby reducing the use effect of the fire hose. Utility Model Content

[0004] The utility model aims to provide a fire hose quick connection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a fire hose quick connection device, comprising a first connecting head and a second connecting head, a first connecting ring is welded to the left side wall of the first connecting head, a second connecting ring is connected to the right side wall of the second connecting head, a first fire hose is fixedly connected to the left side wall of the first connecting ring, a second fire hose is fixedly connected to the right side wall of the second connecting head, an installation groove is provided on the right side wall of the first connecting head, an L-shaped clamping block is installed on one side wall of the installation groove, a mounting block is fixedly connected to the left side wall of the second connecting head, and an L-shaped clamping groove is provided on the outer wall of the mounting block.

[0006] Preferably, a sealing groove is provided on the right side wall of the first connector.

[0007] Preferably, a sealing airbag is installed on the left side wall of the second connector.

[0008] Preferably, an air inlet pipe is fixedly connected to the outer wall of the second connector, a valve is installed on the body of the air inlet pipe, and an air outlet end of the air inlet pipe is connected to the interior of the sealed airbag.

[0009] Preferably, the connecting surfaces of the first connector and the second connector are both coated with a waterproof coating.

[0010] Preferably, a locking hole is provided on one side wall of the mounting groove, a shrinkage groove is provided on the outer wall of the mounting block, a compression spring is installed inside the shrinkage groove, and a locking ball is fixedly provided at the end of the compression spring away from the shrinkage groove.

[0011] Preferably, the first connector and the second connector are both provided with a wear-resistant coating, and the wear-resistant coating is a wear-resistant paint.

[0012] Beneficial Effects

[0013] The utility model provides a fire hose quick connection device, which has the following beneficial effects:

[0014] 1. The fire hose quick connection device, by providing a first connection head and a second connection head, inserting the mounting block into the mounting groove, and engaging and connecting the L-shaped engaging block with the L-shaped engaging groove, thereby completing the quick positioning and connection of the first connection head and the second connection head, reducing the time for connecting the two fire hoses, and facilitating the rapid implementation of firefighting operations.

[0015] 2. The fire hose quick connection device is provided with a first connecting head and a second connecting head. After the connection is completed, the sealing groove and the sealing airbag are in corresponding positions. An air pump is externally connected to the air inlet pipe, and the valve is opened so that the air pump pumps gas into the sealing airbag, so that the sealing airbag is quickly inflated. The valve is closed and the air pump is removed, and the sealing airbag swells up and fits tightly into the sealing groove, thereby improving the connection sealing performance of the two connecting heads, thereby improving the use effect of the fire hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the sealing groove structure;

[0018] Figure 3 This is a schematic diagram of the installation block structure;

[0019] Figure 4 Schematic diagram of the internal cross-sectional structure of the shrinkage groove.

[0020] In the figure: 1. first connector; 2. second connector; 3. first connecting ring; 4. second connecting ring; 5. first fire hose; 6. second fire hose; 7. mounting groove; 8. L-shaped snap-fit ​​block; 9. mounting block; 10. L-shaped snap-fit ​​groove; 11. sealing groove; 12. sealing airbag; 13. air inlet pipe; 14. valve; 15. waterproof coating; 16. snap-fit ​​hole; 17. contraction groove; 18. compression spring; 19. snap-fit ​​ball; 20. wear-resistant coating. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a fire hose quick connection device, comprising a first connecting head 1 and a second connecting head 2, a first connecting ring 3 is welded on the left side wall of the first connecting head 1, and a second connecting ring 4 is connected to the right side wall of the second connecting head 2, a first fire hose 5 is fixedly connected to the left side wall of the first connecting ring 3, and a second fire hose 6 is fixedly connected to the right side wall of the second connecting head 2, a mounting groove 7 is opened on the right side wall of the first connecting head 1, an L-shaped clamping block 8 is installed on one side wall of the mounting groove 7, a mounting block 9 is fixedly connected to the left side wall of the second connecting head 2, and an L-shaped clamping groove 10 is opened on the outer wall of the mounting block 9. By setting the first connecting head 1 and the second connecting head 2, the mounting block 9 is inserted into the mounting groove 7, and the L-shaped clamping block 8 is clamped and connected with the L-shaped clamping groove 10, thereby completing the quick positioning connection of the first connecting head 1 and the second connecting head 2, reducing the time for connecting the two fire hoses, and facilitating the rapid progress of firefighting operations.

[0023] A locking hole 16 is provided on one side wall of the mounting groove 7, and a shrinkage groove 17 is provided on the outer wall of the mounting block 9. A compression spring 18 is installed inside the shrinkage groove 17, and a locking ball 19 is fixedly provided at the end of the compression spring 18 away from the shrinkage groove 17. In the process of inserting the mounting block 9 into the mounting groove 7, it is squeezed by the mounting groove 7, so that the compression spring 18 drives the locking ball 19 to move and shrink into the shrinkage groove 17 until the insertion of the locking ball 19 is completed and it passes through the locking hole 16 without being squeezed by force. The compression spring 18 drives the locking ball 19 to move outward and reset, so that the locking ball 19 is engaged in the locking hole 16, thereby completing further limiting the first connector 1 and the second connector 2.

[0024] The connecting surfaces of the first connector 1 and the second connector 2 are both wrapped with a waterproof coating 15. By providing the waterproof coating 15 on the connecting surfaces of the first connector 1 and the second connector 2, the first connector 1 and the second connector 2 can be effectively prevented from being rusted and damaged.

[0025] The first connector 1 and the second connector 2 are both provided with a wear-resistant coating 20, which is a wear-resistant paint. By providing the wear-resistant coating 20 on the outer walls of the first connector 1 and the second connector 2, not only the wear resistance is improved, but also the service life is increased.

[0026] A sealing groove 11 is provided on the right side wall of the first connector 1, a sealing airbag 12 is installed on the left side wall of the second connector 2, an air inlet pipe 13 is fixedly connected to the outer wall of the second connector 2, a valve 14 is installed on the body of the air inlet pipe 13, and the air outlet end of the air inlet pipe 13 is communicated with the interior of the sealing airbag 12. After the first connector 1 and the second connector 2 are connected, the sealing groove 11 and the sealing airbag 12 are in corresponding positions. By connecting an external air pump to the air inlet pipe 13 and opening the valve 14, the air pump pumps gas into the sealing airbag 12, so that the sealing airbag 12 is quickly inflated. After closing the valve 14 and removing the air pump, the sealing airbag 12 swells and fits tightly into the sealing groove 11, thereby improving the connection sealing performance of the two connectors, thereby improving the use effect of the fire hose.

[0027] Working principle: When in use, the mounting block 9 is inserted into the mounting groove 7, and the L-shaped snap-fit ​​block 8 is snap-fitted with the L-shaped snap-fit ​​groove 10, so as to complete the quick positioning and connection of the first connector 1 and the second connector 2, reducing the time for connecting the two fire hoses, which is conducive to the rapid implementation of firefighting operations. In the process of inserting the mounting block 9 into the mounting groove 7, it is squeezed by the mounting groove 7, so that the compression spring 18 drives the snap-fit ​​ball 19 to move and shrink into the shrink groove 17, until the snap-fit ​​ball 19 is inserted and passes through the snap hole 16, it is no longer squeezed by force, and the compression spring 18 drives the snap-fit ​​ball 19 to move outward and reset, so that The locking ball 19 is locked in the locking hole 16, thereby further limiting the first connector 1 and the second connector 2. After the first connector 1 and the second connector 2 are connected, the sealing groove 11 and the sealing airbag 12 are in corresponding positions. By connecting an external air pump to the air inlet pipe 13, the valve 14 is opened and the air pump pumps gas into the sealing airbag 12, so that the sealing airbag 12 is quickly inflated. The valve 14 is closed and the air pump is removed, and the sealing airbag 12 swells and fits tightly into the sealing groove 11, thereby improving the connection sealing performance of the two connectors, thereby improving the use effect of the fire hose.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire hose quick connection device, comprising a first connection head (1) and a second connection head (2), characterized in that: A first connecting ring (3) is welded to the left side wall of the first connecting head (1), a second connecting ring (4) is connected to the right side wall of the second connecting head (2), a first fire hose (5) is fixedly connected to the left side wall of the first connecting ring (3), a second fire hose (6) is fixedly connected to the right side wall of the second connecting head (2), a mounting groove (7) is provided on the right side wall of the first connecting head (1), an L-shaped clamping block (8) is installed on one side wall of the mounting groove (7), a mounting block (9) is fixedly connected to the left side wall of the second connecting head (2), and an L-shaped clamping groove (10) is provided on the outer wall of the mounting block (9).

2. A fire hose quick connection device according to claim 1, characterized in that: A sealing groove (11) is provided on the right side wall of the first connector (1).

3. A fire hose quick connection device according to claim 1, characterized in that: A sealing airbag (12) is installed on the left side wall of the second connector (2).

4. A fire hose quick connection device according to claim 3, characterized in that: An air inlet pipe (13) is fixedly connected to the outer wall of the second connector (2), a valve (14) is installed on the body of the air inlet pipe (13), and an air outlet end of the air inlet pipe (13) is connected to the interior of the sealing airbag (12).

5. A fire hose quick connection device according to claim 1, characterized in that: The connecting surfaces of the first connector (1) and the second connector (2) are both coated with a waterproof coating (15).

6. A fire hose quick connection device according to claim 1, characterized in that: A snap-fit ​​hole (16) is provided on one side wall of the mounting groove (7), a contraction groove (17) is provided on the outer wall of the mounting block (9), a compression spring (18) is installed inside the contraction groove (17), and a snap-fit ​​ball (19) is fixedly provided at the end of the compression spring (18) away from the contraction groove (17).

7. A fire hose quick connection device according to claim 1, characterized in that: The first connector (1) and the second connector (2) are both provided with a wear-resistant coating (20), and the wear-resistant coating (20) is a wear-resistant paint.

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