Anti-static fire hose

Abstract

The utility model discloses an anti-static fire hose, and belongs to the technical field of fire-fighting instruments. An anti-static fire hose comprises a hose body, a connector is fixedly installed at the end of the hose body, the connector and the hose body are detachably fixed through connecting frames, every two adjacent connecting frames are connected through a protruding rib, the connecting frames extend into the inner space of the hose body, and the connecting frames are electrically connected with the protruding ribs. The connecting frame comprises an inner pressing block and an outer pressing block, the end of the water hose is pressed between the inner pressing block and the outer pressing block, and the inner pressing block and the outer pressing block are connected through an assembly. Through the arrangement of the connecting frame and the convex ribs, the connecting frame can serve as a fixing piece to detachably connect the water hose and the connector, independent replacement in subsequent use is facilitated, and in use after connection, the connecting frame can directly make contact with foam in the water hose and transmit static electricity generated by friction into the convex ribs to be grounded; the static electricity removing effect of the foam is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, and more specifically to an anti-static fire-fighting hose. Background Art

[0002] The fire hose is a commonly used fire-fighting equipment. It is a must-have for fire trucks, public places, factories, schools, warehouses and other places. Its performance and quality must be absolutely guaranteed. However, when using foam for fire extinguishing, due to the material problem of the hose, the static electricity of the foam will be too high, resulting in static electricity explosion.

[0003] Existing fire hoses rarely consider the risk of static electricity. Because the main body of the fire hose is made of nylon and rubber, static electricity is easily generated after friction between the foam and the fire hose. Static electricity explosion is easy to occur when encountering flammable and explosive items during the firefighting process. In view of this, we propose an anti-static fire hose. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The purpose of the utility model is to provide an anti-static fire hose to solve the problems raised in the above background technology.

[0006] 2. Technical solution

[0007] An anti-static fire hose comprises a hose, wherein a joint is fixedly installed at the end of the hose, the joint and the hose are detachably fixed via a connecting frame, adjacent connecting frames are connected via convex ribs, the connecting frame extends to the inner space of the hose, and the connecting frame is electrically connected to the convex ribs.

[0008] Preferably, the connecting frame comprises an inner pressing block and an outer pressing block, the end of the water hose is pressed tightly between the inner pressing block and the outer pressing block, and the inner pressing block and the outer pressing block are connected by an assembly.

[0009] Preferably, the joint comprises a ring frame, and a notch is formed on the ring frame to cooperate with the external pressure block.

[0010] Preferably, the inner pressure block is provided with a support ear in the height direction, and the ring frame is provided with a slot that cooperates with the support ear.

[0011] Preferably, the convex rib includes a connecting layer, the connecting layer is located at the folding position of the water hose, a protective layer is provided on the side of the connecting layer away from the water hose, and the connecting layer forms a bonding layer with the water hose on the side close to the water hose.

[0012] Preferably, the water hose comprises a main body and a conductive wire embedded in the main body, and the conductive wire is electrically connected to the bonding layer.

[0013] Preferably, the conductive wire is spirally coiled and woven into the main body.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] By setting the connecting frame and the convex ribs, the connecting frame can be used as a fixing part to detachably connect the water hose and the joint, so as to facilitate separate replacement in subsequent use. In use after connection, the connecting frame can directly contact the foam inside the water hose, and transfer the static electricity generated by friction to the convex ribs for grounding, thereby realizing the anti-static effect of the foam. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a partial cutaway schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the disassembly of part of the structure of the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of the utility model in one state.

[0021] Description of the numbers in the figure:

[0022] Joint 1; ring frame 11; notch 12; slot 13;

[0023] Water hose 2; main body 21; conductive wire 22;

[0024] convex rib 3; protective layer 31; connecting layer 32; bonding layer 33;

[0025] Connecting frame 4; inner pressure block 41; support ear 42; outer pressure block 43; assembly 44. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 indirectly connected 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 utility model can be understood according to specific circumstances.

[0029] Example:

[0030] See also Figure 1-4 This embodiment provides an anti-static fire hose, referring to Figure 1 , including a water hose 2, a joint 1 is fixedly installed at the end of the water hose 2, and the two joints 1 cooperate with each other, so that the water hose 2 can be connected at the end to extend the conveying distance. The joint 1 and the water hose 2 are detachably fixed by a connecting frame 4. When damaged, they can be disassembled and replaced separately. To avoid water leakage at the joint, glue can be applied and sealed at the position where the connecting frame 4 is not installed. Adjacent connecting frames 4 are connected by convex ribs 3, and the connecting frame 4 extends to the internal space of the water hose 2. The connecting frame 4 is electrically connected to the convex rib 3;

[0031] Among them, the joint 1 and the water hose 2 are detachably fixed by the connecting frame 4. When damaged, the joint 1 or the water hose 2 can be disassembled and replaced for easy maintenance. When the water hose 2 is held for fire extinguishing, the static electricity generated by the friction between the foam inside the water hose 2 and the inner wall of the water hose 2 can be transferred to the position of the rib 3 through the connecting frame 4 and the joint 1. The rib 3 transfers the static electricity on the foam to the water supply head of the fire truck, and the car body is grounded to eliminate the static electricity on the foam and prevent the foam from being charged.

[0032] In a further embodiment, referring to Figure 2 The connecting frame 4 includes an inner pressure block 41 and an outer pressure block 43. The end of the water hose 2 is pressed between the inner pressure block 41 and the outer pressure block 43. The inner pressure block 41 and the outer pressure block 43 are connected by an assembly 44. When connected, the inner pressure block 41 and the outer pressure block 43 squeeze each other to press the end of the water hose 2. The inner pressure block 41 is processed as one piece with the joint 1, with fewer moving parts. When disassembling, you only need to remove the outer pressure block 43 to loosen the water hose 2, which is convenient for installation and assembly.

[0033] In a further embodiment, referring to Figure 3The joint 1 includes a ring frame 11, on which a notch 12 is provided for cooperating with the external pressure block 43. After the external pressure block 43 is fixed, it will be embedded in the notch 12 to ensure the smoothness of the surface of the joint 1, prevent the external pressure block 43 from protruding and hanging on external objects, and improve the safety of use.

[0034] In a further embodiment, referring to Figure 3 The inner pressure block 41 is provided with a support ear 42 in the height direction, and a slot 13 cooperating with the support ear 42 is opened on the ring frame 11. The inner pressure block 41 and the joint 1 are separately provided, and the inner pressure block 41 can be disassembled separately. When the inner pressure block 41 is damaged, it can be replaced separately without replacing the joint 1 as a whole, and the support ear 42 is stuck in the slot 13. After the water hose 2 is installed, when the connection position of the joint 1 and the water hose 2 is pulled, the support ear 42 can ensure the stable connection between the inner pressure block 41 and the joint 1.

[0035] In a further embodiment, referring to Figure 4 The convex rib 3 includes a connecting layer 32, in which conductive materials such as graphite powder are mixed, so that the connecting layer 32 has conductive ability, the connecting layer 32 is located at the folding position of the water hose 2, and a protective layer 31 is provided on the side of the connecting layer 32 away from the water hose 2. The connecting layer 32 is arranged at the folding position of the water hose 2, and a layer of protective layer 31 is adhered. When the water hose 2 is rolled up, the water hose 2 will be folded into a sheet shape. At this time, the protective layer 31 can make the folding position arc-shaped to prevent the folding angle from being too large and causing the water hose 2 to be damaged at the folding position, and the protective layer 31 protrudes from the side of the water hose 2 after rolling up, which can reduce the wear of the folding position when the water hose 2 is transported in the rolled-up state.

[0036] In a further embodiment, the water hose 2 includes a main body 21 and a conductive wire 22 embedded in the main body 21. The connecting layer 32 is close to the side of the water hose 2 to form a bonding layer 33 with the water hose 2. The conductive wire 22 is electrically connected to the bonding layer 33. Because the inner layer of the water hose 2 is made of rubber and the outer layer is woven nylon, after the water hose 2 rubs against itself, and the conductivity of nylon and rubber is poor, it will cause charges to accumulate locally, causing static electricity on the outer surface of the water hose 2. Therefore, a conductive wire 22 is added to the water hose 2, and the conductive wire 22 is electrically connected to the bonding layer 33. The static electricity of the water hose 2 can be transferred to the connecting layer 32, and then the static electricity on the outer surface of the water hose 2 is eliminated by grounding the connecting layer 32.

[0037] In further embodiments, please refer to Figure 4 The connecting layer 32 forms a bonding layer 33 with the water hose 2 on one side thereof, and the bonding layer 33 can penetrate into the outer wall of the water hose 2 to form a bonding section of a certain depth, thereby improving the firmness of the bonding.

[0038] In a further embodiment, the conductive wire 22 is spirally coiled and woven into the main body 21. The continuous conductive wire 22 covers the entire section of the water hose 2. Even if the bonding layer 33 breaks, the conductive wire 22 can still perform a conductive function, thereby achieving stable static elimination.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An anti-static fire hose, comprising a hose (2), characterized in that: A joint (1) is fixedly installed at the end of the water hose (2); the joint (1) and the water hose (2) are detachably fixed via a connecting frame (4); adjacent connecting frames (4) are connected via convex ribs (3); the connecting frame (4) extends into the internal space of the water hose (2); and the connecting frame (4) is electrically connected to the convex ribs (3).

2. The anti-static fire hose according to claim 1, characterized in that: The connecting frame (4) comprises an inner pressure block (41) and an outer pressure block (43); the end of the water hose (2) is pressed tightly between the inner pressure block (41) and the outer pressure block (43); and the inner pressure block (41) and the outer pressure block (43) are connected via an assembly (44).

3. The anti-static fire hose according to claim 2, characterized in that: The joint (1) comprises a ring frame (11), and a notch (12) is provided on the ring frame (11) for cooperating with an external pressure block (43).

4. The anti-static fire hose according to claim 3, characterized in that: The inner pressure block (41) is provided with a support ear (42) in the height direction, and the ring frame (11) is provided with a clamping groove (13) that matches the support ear (42).

5. The anti-static fire hose according to claim 2, characterized in that: The convex rib (3) comprises a connecting layer (32), the connecting layer (32) is located at the folded position of the water hose (2), a protective layer (31) is provided on the side of the connecting layer (32) away from the water hose (2), and a bonding layer (33) is formed with the water hose (2) on the side of the connecting layer (32) close to the water hose (2).

6. The anti-static fire hose according to claim 5, characterized in that: The water hose (2) comprises a main body (21) and a conductive wire (22) embedded in the main body (21), and the conductive wire (22) is electrically connected to a bonding layer (33).

7. The anti-static fire hose according to claim 6, characterized in that: The conductive wire (22) is arranged in a spiral coil, and the conductive wire (22) is woven into the main body (21).

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