A quick connector for fire hose

Abstract

The utility model relates to the technical field of fixed brackets, specifically a quick connector for fire hoses. The utility model includes an inner tube and an outer tube, the outer part of the inner tube is provided with a fixing device, the fixing device includes four telescopic rods, one end of the four telescopic rods is fixedly connected to the inner tube, the output end of the telescopic rod is fixedly connected with a fixing block, the arc surface of the telescopic rod is sleeved with a first spring, the two ends of the first spring are respectively fixedly connected to the inner tube and the fixing block, one side of the fixing block is fixedly connected with a guide block, one side of the guide block is slidably connected with a fixing frame, and the interior of the fixing frame is slidably connected with the fixing block. The problem of traditional fire hose connectors, which are basically fixed by rotating with threaded connections, and therefore require continuous rotation of the connectors, is solved. In the case of external water hoses, the firefighting time is every second counts, resulting in a long installation time, which in turn affects the firefighting work.

Description

Technical Field

[0001] The utility model relates to the technical field of fixed brackets, in particular to a quick connector for a fire hose. Background Art

[0002] A fire hose is a flexible pipe used to carry high-pressure fire-retardant liquids such as water or foam.

[0003] In the prior art, conventional fire hose joints are basically fixed by rotating using threaded connections, so the joints need to be rotated continuously. In the case of external hoses, firefighting time is of the essence, resulting in a long installation time, which in turn affects firefighting work. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the traditional fire hose joints in the prior art are basically fixed by rotation using threaded connections, so the joints need to be rotated continuously, which in turn affects the firefighting work, and a quick connector for a fire hose is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a quick connector for a fire hose, comprising an inner cylinder and an outer cylinder, a fixing device is provided on the outside of the inner cylinder, the fixing device comprises four telescopic rods, one end of the four telescopic rods is fixedly connected to the inner cylinder, the output end of the telescopic rod is fixedly connected to a fixing block, the arc surface of the telescopic rod is sleeved with a first spring, the two ends of the first spring are respectively fixedly connected to the inner cylinder and the fixing block, one side of the fixing block is fixedly connected to a guide block, one side of the guide block is slidably connected to a fixing frame, the interior of the fixing frame is slidably connected to the fixing block, and one side of the four fixing frames is fixedly connected to the outer cylinder.

[0006] The effects achieved by the above components are as follows: the outer cylinder moves toward the direction approaching the inner cylinder, the outer cylinder drives the fixed frame to contact the guide block, the movement of the guide block drives the fixed block to move toward the direction approaching the inner cylinder, so that the first spring and the telescopic rod contract, and after the fixed frame contacts the fixed block through the guide block, the first spring rebounds and drives the fixed block to restore the original position and form a fixed state with the fixed frame.

[0007] Preferably, four support blocks are fixedly connected to the outside of the inner cylinder, and one end of the support block is fixedly connected to a round rod.

[0008] The effects achieved by the above components are: achieving the effect of fixing the support block and the round rod.

[0009] Preferably, the arc surface of the round rod is slidably connected with a connecting block, and one end of the four connecting blocks is fixedly connected to the outer cylinder.

[0010] The effect achieved by the above components is: the round rod can slide in the connecting block.

[0011] Preferably, one side of the fixed frame is slidably connected to two connecting rods, and one end of the connecting rod is fixedly connected to a limiting block.

[0012] The effects achieved by the above components are: the connecting rod slides on the fixed frame, and the limit block prevents the connecting rod from being separated from the fixed frame.

[0013] Preferably, one end of the two connecting rods is fixedly connected to a push plate, one side of the push plate is fixedly connected to a push block, and one end of the push block is slidably connected to the fixed block.

[0014] The effect achieved by the above components is: the push plate moves toward the fixed block to drive the push block and squeeze the fixed block.

[0015] Preferably, a moving device is provided on the outside of the outer cylinder, and the moving device includes two pull plates, and the sides of the two pull plates close to each other are slidably connected to the outer cylinder, and the sides of the two pull plates close to each other are both provided with limiting grooves.

[0016] The effect achieved by the above components is: the effect of the limit groove being opened on the pull plate is achieved.

[0017] Preferably, the interiors of the two limiting grooves are slidably connected to limiting rings, and the interiors of the limiting rings are fixedly connected to the outer cylinder.

[0018] The effect achieved by the above components is: the limiting ring slides inside the limiting groove.

[0019] Preferably, one end of the pull plate is fixedly connected to two retractable rods, and one end of the two retractable rods is fixedly connected to an arc-shaped plate.

[0020] The effect achieved by the above components is that the movement of the pull plate drives the contraction rod to extend and retract.

[0021] Preferably, the arc surface of the retractable rod is sleeved with a second spring, and two ends of the second spring are respectively fixedly connected to the arc plate and the pulling plate.

[0022] The effect achieved by the above components is that the retractable rod prevents the second spring from deforming during the stretching or contraction process.

[0023] In summary, the beneficial effects of the utility model are:

[0024] In the utility model, through the fixing device, when the fire water pipe joint needs to be quickly docked, after the fixing frame contacts the fixing block through the guide block, the first spring rebounds to drive the fixing block to restore the original position and form a fixed state with the fixing frame, forming a direct docking and fixing of the inner tube and the outer tube. Through the fixing device, the problem of traditional fire hose joints, which are basically fixed by rotation using threaded connections, and therefore require continuous rotation of the joints, affecting firefighting work, is solved.

[0025] In the utility model, when the firefighter needs to hold the joint conveniently, the pull plate is pulled by the moving device. The pull plate is moved in the direction away from the arc plate by the pulling force, so that the firefighter can hold the outer cylinder by the pull plate. The moving device solves the problem of the traditional quick connector for fire hoses, that the firefighter is not convenient to hold the fire hose connector and the fire hose gun is easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the fixed structure of the utility model;

[0028] Figure 3 It is a cross-sectional structural diagram of the three-dimensional structure of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the mobile structure of the utility model.

[0030] Legend: 1. Inner cylinder; 2. Fixing device; 201. Fixing frame; 202. Guide block; 203. Fixing block; 204. Telescopic rod; 205. First spring; 206. Push block; 207. Push plate; 208. Connecting rod; 209. Limiting block; 210. Support block; 211. Round rod; 212. Connecting block; 3. Moving device; 31. Arc plate; 32. Retracting rod; 33. Second spring; 34. Pull plate; 35. Limiting groove; 36. Limiting ring; 4. Outer cylinder. DETAILED DESCRIPTION

[0031] Reference Figure 1 and Figure 3 As shown, the utility model provides a technical solution: a quick connector for a fire hose, comprising an inner tube 1 and an outer tube 4, a fixing device 2 is provided outside the inner tube 1, and a moving device 3 is provided outside the outer tube 4.

[0032] The specific settings and functions of the fixing device 2 and the moving device 3 are described in detail below.

[0033] Reference Figure 2As shown, in this embodiment: the fixing device 2 includes four telescopic rods 204, one end of the four telescopic rods 204 is fixedly connected to the inner cylinder 1, the output end of the telescopic rod 204 is fixedly connected to the fixed block 203, the arc surface of the telescopic rod 204 is sleeved with a first spring 205, the two ends of the first spring 205 are respectively fixedly connected to the inner cylinder 1 and the fixed block 203, one side of the fixed block 203 is fixedly connected to the guide block 202, one side of the guide block 202 is slidably connected to the fixed frame 201, the interior of the fixed frame 201 is slidably connected to the fixed block 203, and one side of the four fixed frames 201 is fixedly connected to the outer cylinder 4. The outer cylinder 4 moves toward the direction close to the inner cylinder 1, the outer cylinder 4 drives the fixed frame 201 to contact the guide block 202, the guide block 202 moves and drives the fixed block 203 to move toward the direction close to the inner cylinder 1, so that the first spring 205 and the telescopic rod 204 shrink, and after the fixed frame 201 contacts the fixed block 203 through the guide block 202, the first spring 205 rebounds and drives the fixed block 203 to restore the original position and form a fixed state with the fixed frame 201. The outer part of the inner cylinder 1 is fixedly connected with four support blocks 210, and one end of the support block 210 is fixedly connected with a round rod 211. The effect of fixing the support block 210 and the round rod 211 is achieved. The arc surface of the round rod 211 is slidably connected with a connecting block 212, and one end of the four connecting blocks 212 is fixedly connected to the outer cylinder 4. The effect of the round rod 211 sliding in the connecting block 212 is achieved. One side of the fixed frame 201 is slidably connected with two connecting rods 208, and one end of the connecting rod 208 is fixedly connected with a limited block 209. The connecting rod 208 slides on the fixed frame 201, and the limit block 209 prevents the connecting rod 208 from being separated from the fixed frame 201. One end of the two connecting rods 208 is fixedly connected to the push plate 207, one side of the push plate 207 is fixedly connected to the push block 206, and one end of the push block 206 is slidably connected to the fixed block 203. The push plate 207 moves toward the fixed block 203 to drive the push block 206, and the fixed block 203 is squeezed.

[0034] Reference Figure 4 As shown, in this embodiment: the moving device 3 includes two pull plates 34, and the sides of the two pull plates 34 close to each other are slidably connected to the outer cylinder 4, and the sides of the two pull plates 34 close to each other are provided with limiting grooves 35. The effect of the limiting grooves 35 being provided on the pull plates 34 is achieved. The insides of the two limiting grooves 35 are slidably connected with limiting rings 36, and the inside of the limiting rings 36 is fixedly connected to the outer cylinder 4. The effect of the limiting rings 36 sliding inside the limiting grooves 35 is achieved. One end of the pull plate 34 is fixedly connected to two contraction rods 32, and one end of the two contraction rods 32 is fixedly connected to the arc plate 31. The effect of the pull plate 34 moving to drive the contraction rod 32 to extend and retract is achieved. The arc surface of the contraction rod 32 is covered with a second spring 33, and the two ends of the second spring 33 are respectively fixedly connected to the arc plate 31 and the pull plate 34. The effect of the contraction rod 32 preventing the second spring 33 from deforming during the stretching or contraction process is achieved.

[0035] Working principle: through the fixing device 2, when it is necessary to quickly dock the fire water pipe joint, the operator first moves the outer tube 4 toward the inner tube 1. During the movement, the outer tube 4 drives the fixed frame 201 to contact the guide block 202. The guide block 202 moves and drives the fixed block 203 to move toward the inner tube 1, so that the first spring 205 and the telescopic rod 204 shrink. After the fixed frame 201 contacts the fixed block 203 through the guide block 202, the first spring 205 rebounds and drives the fixed block 203 to restore its original position and form a fixed state with the fixed frame 201, forming a direct docking and fixation between the inner tube 1 and the outer tube 4. Through the fixing device 2, the problem of traditional fire hose joints, which are basically fixed by rotation using threaded connections, needs to be continuously rotated. In the case of external water hoses, firefighting time is every second counts, resulting in a long installation time, which in turn affects the firefighting work.

[0036] Through the moving device 3, when the firefighters need to hold the joint conveniently, the operator first pulls the pull plate 34 to move the pull plate 34 away from the arc plate 31. During the movement, the pull plate 34 drives the retracting rod 32 and the second spring 33 to be continuously in a stretched state. After the pull plate 34 drives the limiting groove 35 to move and contact with the limiting ring 36, the pull plate 34 can be held. Through the moving device 3, the problem of the traditional quick connector for fire hoses, that is, because there is no handle installed at the fire hose joint, it is inconvenient for firefighters to hold the fire hose joint, and the fire hose gun is easy to fall off, is solved.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A quick connector for a fire hose, comprising an inner tube (1) and an outer tube (4), characterized in that: A fixing device (2) is provided on the outside of the inner cylinder (1), and the fixing device (2) comprises four telescopic rods (204), one end of the four telescopic rods (204) is fixedly connected to the inner cylinder (1), the output end of the telescopic rod (204) is fixedly connected to a fixing block (203), the arc surface of the telescopic rod (204) is sleeved with a first spring (205), the two ends of the first spring (205) are respectively fixedly connected to the inner cylinder (1) and the fixing block (203), one side of the fixing block (203) is fixedly connected to a guide block (202), one side of the guide block (202) is slidably connected to a fixing frame (201), the interior of the fixing frame (201) is slidably connected to the fixing block (203), and one side of the four fixing frames (201) is fixedly connected to the outer cylinder (4).

2. A quick connector for a fire hose according to claim 1, characterized in that: Four support blocks (210) are fixedly connected to the outside of the inner cylinder (1), and one end of the support block (210) is fixedly connected to a round rod (211).

3. A quick connector for a fire hose according to claim 2, characterized in that: The arc surface of the round rod (211) is slidably connected to a connecting block (212), and one end of the four connecting blocks (212) is fixedly connected to the outer cylinder (4).

4. A quick connector for a fire hose according to claim 1, characterized in that: Two connecting rods (208) are slidably connected to one side of the fixing frame (201), and one end of the connecting rod (208) is fixedly connected to a limiting block (209).

5. A quick connector for a fire hose according to claim 4, characterized in that: One end of the two connecting rods (208) is fixedly connected to a push plate (207), one side of the push plate (207) is fixedly connected to a push block (206), and one end of the push block (206) is slidably connected to the fixed block (203).

6. A quick connector for a fire hose according to claim 3, characterized in that: A moving device (3) is provided outside the outer cylinder (4), and the moving device (3) comprises two pull plates (34). The sides of the two pull plates (34) close to each other are slidably connected to the outer cylinder (4), and the sides of the two pull plates (34) close to each other are both provided with limiting grooves (35).

7. A quick connector for a fire hose according to claim 6, characterized in that: The interior of the two limiting grooves (35) is slidably connected to a limiting ring (36), and the interior of the limiting ring (36) is fixedly connected to the outer cylinder (4).

8. A quick connector for a fire hose according to claim 6, characterized in that: One end of the pulling plate (34) is fixedly connected to two retractable rods (32), and one end of the two retractable rods (32) is fixedly connected to an arc-shaped plate (31).

9. A quick connector for a fire hose according to claim 8, characterized in that: The arc surface of the retractable rod (32) is sleeved with a second spring (33), and the two ends of the second spring (33) are respectively fixedly connected to the arc plate (31) and the pulling plate (34).

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