Anti-explosion fire hose

Abstract

The utility model discloses a kind of compression-resistant explosion-proof fire hose, it relates to fire hose technical field, including fire hose body, the side of fire hose body is equipped with protective head, the outside of protective head is clamped with connector, the inside of protective head is located in connector, the side of protective head is threadedly connected with reinforcing frame, the shape of reinforcing frame is cross, the outside of connector is equipped with first clamping groove. The utility model adopts the above structure, its first clamping block can be inserted into circular groove with second clamping block, the angle of second clamping block is rotated to with second clamping groove is not corresponding point position, and then the point position of connector can be effectively fixed, to avoid its loosening or falling off, when it needs to be disassembled to maintain it, second clamping block is rotated to with second clamping groove corresponding point position, then first clamping block is extracted directly, so that the subsequent disassembly and maintenance efficiency of connector can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of fire hose technology, and specifically relates to a pressure-resistant and explosion-proof fire hose. Background Technology

[0002] Fire hoses are a commonly used fire-fighting equipment and are essential for fire trucks, public places, factories, schools, warehouses, etc. Fire hoses are flexible hoses used to transport high-pressure water or flame-retardant liquids such as foam. Traditional fire hoses have a rubber inner lining and are wrapped with linen woven fabric on the outer surface. However, the woven layer has gaps that cannot prevent water from leaking out. Therefore, a lining material is added to the inner layer of the woven layer to achieve waterproof performance.

[0003] Chinese patent with announcement number "CN214550826U" discloses a pressure-resistant and leak-proof fire hose. The key technical points of the solution are: it includes a fire hose body and a rubber layer. The rubber layer is fixedly sleeved on the outside of the fire hose body. A pressure-resistant layer is fixedly installed at the end of the rubber layer away from the fire hose body. The pressure-resistant layer is composed of a carbon fiber layer, a glass fiber layer and a nylon fiber layer.

[0004] However, the above structure still has some shortcomings. When using fire hoses, the huge water pressure is discharged through the connection points of the fire hoses. Under the long-term high-pressure working environment, the connection points of the fire hoses will inevitably suffer some wear and tear, and will require maintenance later. Since the connection points of fire hoses are not easy to disassemble, it will increase the difficulty of maintenance of the fire hose connection points later. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a pressure-resistant and explosion-proof fire hose to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: An explosion-proof and pressure-resistant fire hose includes a fire hose body, a protective head installed on one side of the fire hose body, a connector snapped onto the outer side of the protective head, the protective head being located inside the connector, a reinforcing bracket threaded onto one side of the protective head, the reinforcing bracket being cross-shaped, a first slot being formed on the outer side of the connector, the first slot penetrating the outer sides of both the connector and the protective head, a second slot being formed on the inner wall of the first slot, a circular groove being formed on the inner side of the first slot, a first locking block being snapped onto the inner side of the first slot, and a second locking block matching the second slot being fixedly connected to the outer side of the first locking block, the second locking block being snapped onto the inner side of the circular groove.

[0007] As a preferred technical solution, a retaining spring that matches the second retaining block is installed on the inner side of the circular groove. The bottom end of the second retaining block is engaged with the top end of the retaining spring. A sealing block is fixedly connected to the top end of the first retaining block. The sealing block covers the top end of the first retaining groove. A protrusion is fixedly connected to the top end of the sealing block. The protrusion has an arc-shaped corner.

[0008] As a preferred technical solution, a groove matching the protective head is provided on the inner wall of the connector, and the outer side of the protective head is slidably connected to the inner side of the groove.

[0009] As a preferred technical solution, a fixing block is fixedly connected to the outer side of the reinforcement frame. A screw hole is opened on one side of the fixing block. The screw hole passes through the fixing block and one side of the protective head. A bolt is threaded on the inner side of the screw hole. The other side of the bolt is threaded to the inside of the protective head through the screw hole. The reinforcement frame is threaded to one side of the protective head through the fixing block, screw hole and bolt.

[0010] As a preferred technical solution, the outer wall of the fire hose is coated with an anti-corrosion layer with a thickness of five millimeters. The anti-corrosion layer covers the outer wall of the fire hose and is made of natural rubber material.

[0011] As a preferred technical solution, the fire hose body is provided with an explosion-proof layer inside, the explosion-proof layer is five millimeters thick, the explosion-proof layer covers the inside of the fire hose body, and the explosion-proof layer is made of thermoplastic polyurethane material.

[0012] As a preferred technical solution, the protective head has an internal pressure-resistant layer with a thickness of five millimeters. The pressure-resistant layer covers the inside of the protective head and is made of stainless steel.

[0013] In summary, the present invention has the following main advantages: Firstly, during use, the presence of the reinforcing bracket effectively improves the stability of the inner side of the protective head, while the reinforcing bracket does not obstruct the normal flow of water. The first locking block allows the second locking block to be inserted into the circular groove. By rotating the angle of the second locking block to a position that does not correspond to the second slot, the connection point can be effectively fixed to prevent it from loosening or falling off. When it is necessary to disassemble it for maintenance later, rotate the second locking block to a position that corresponds to the second slot, and then simply pull out the first locking block. This effectively improves the efficiency of subsequent disassembly and maintenance of the connection. Secondly, the presence of the pressure-resistant layer effectively enhances the pressure resistance of the protective head itself. Under prolonged water flow pressure, it remains relatively stable and does not easily deform, thus extending its service life. Furthermore, the explosion-proof layer possesses excellent wear resistance, oil resistance, and chemical corrosion resistance, along with good elasticity and strength. As the inner lining material of the fire hose, it effectively prevents water leakage and maintains structural integrity under high-pressure water flow. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a utility model Figure 1 A magnified structural diagram of part A; Figure 3 This is a schematic diagram of the protective head structure of this utility model; Figure 4 This is a utility model Figure 3 A magnified structural diagram of part B; Figure 5 This is a schematic diagram of the first card block structure of this utility model; Figure 6 This is a cross-sectional structural diagram of the present invention.

[0015] Reference numerals in the attached drawings: 1. Fire hose body; 2. Protective head; 3. Connector; 4. Reinforcing frame; 5. Fixing block; 6. Screw hole; 7. Bolt; 8. First slot; 9. Second slot; 10. Circular groove; 11. Snap ring; 12. First locking block; 13. Second locking block; 14. Sealing block; 15. Protrusion; 16. Explosion-proof layer; 17. Pressure-resistant layer; 18. Corrosion-resistant layer; 19. Sliding groove. Detailed Implementation

[0016] Example refer to Figures 1 to 6 This embodiment of a pressure-resistant and explosion-proof fire hose includes a fire hose body 1. A protective head 2 is installed on one side of the fire hose body 1. A connector 3 is snapped onto the outer side of the protective head 2. The protective head 2 is located inside the connector 3. A reinforcing frame 4 is threaded onto one side of the protective head 2. The reinforcing frame 4 is cross-shaped. A first slot 8 is provided on the outer side of the connector 3, and the first slot 8 penetrates the outer sides of both the connector 3 and the protective head 2. A second slot 9 is provided on the inner wall of the first slot 8. A circular groove 10 is provided on the inner side of the first slot 8. A first locking block 12 is snapped onto the inner side of the first slot 8. A second locking block 13, which matches the second slot 9, is fixedly connected to the outer side of the first locking block 12. The second locking block 13 is engaged inside the circular groove 10. When in use, the reinforcing frame 4 can effectively improve the stability of the protective head 2 itself, and at the same time, the reinforcing frame 4 will not obstruct the normal flow of water. The first locking block 12 can facilitate the insertion of the second locking block 13 into the circular groove 10. The angle of the second locking block 13 is rotated to a position that is not corresponding to the second groove 9, thereby effectively fixing the connector 3 to prevent it from loosening or falling off. When it needs to be disassembled for maintenance, the second locking block 13 is rotated to a position corresponding to the second groove 9, and then the first locking block 12 can be pulled out directly, thereby effectively improving the efficiency of subsequent disassembly and maintenance of the connector 3.

[0017] refer to Figures 1 to 5 A retaining spring 11 matching the second retaining block 13 is installed on the inner side of the circular groove 10. The bottom end of the second retaining block 13 is engaged with the top end of the retaining spring 11. A sealing block 14 is fixedly connected to the top end of the first retaining block 12. The sealing block 14 covers the top end of the first retaining groove 8. A protrusion 15 is fixedly connected to the top end of the sealing block 14. The protrusion 15 has an arc-shaped corner. Due to the presence of the retaining spring 11, the second retaining block 13 can be engaged twice, which can effectively improve the stability of the 3-point engagement of the connector.

[0018] refer to Figure 1 The inner wall of the connector 3 is provided with a sliding groove 19 that matches the protective head 2. The outer side of the protective head 2 is slidably connected to the inner side of the sliding groove 19. The opening of the sliding groove 19 makes it easy to pull the connector 3 out. When disassembling the connector 3, it can be pulled out through the sliding groove 19. It also facilitates the user's later fixed-point installation of the connector 3.

[0019] refer to Figure 1 and Figure 2 The outer side of the reinforcement frame 4 is fixedly connected to a fixing block 5. A screw hole 6 is opened on one side of the fixing block 5. The screw hole 6 passes through the fixing block 5 and one side of the protective head 2. A bolt 7 is threaded on the inner side of the screw hole 6. The other side of the bolt 7 is threaded into the inside of the protective head 2 through the screw hole 6. The reinforcement frame 4 is threaded to one side of the protective head 2 through the fixing block 5, the screw hole 6 and the bolt 7. Due to the presence of the bolt 7, the screwing in of the bolt 7 can effectively fix the position of the reinforcement frame 4 to prevent the reinforcement frame 4 from shifting. When it needs to be disassembled later, the bolt 7 can be screwed out of the screw hole 6. It also facilitates the user to maintain the reinforcement frame 4 later.

[0020] refer to Figure 1 The outer wall of the fire hose body 1 is coated with an anti-corrosion layer 18, which is five millimeters thick. The anti-corrosion layer 18 covers the outer wall of the fire hose body 1 and is made of natural rubber material. Due to the presence of the anti-corrosion layer 18, the natural rubber material has high strength and good wear resistance, which can effectively improve the protection of the outer wall of the fire hose.

[0021] refer to Figure 6 The fire hose body 1 has an explosion-proof layer 16 inside, which is five millimeters thick. The explosion-proof layer 16 covers the inside of the fire hose body 1 and is made of thermoplastic polyurethane material. Due to the presence of the explosion-proof layer 16, it has excellent wear resistance, oil resistance and chemical corrosion resistance, as well as good elasticity and strength. As the inner lining material of the fire hose body 1, it can effectively prevent water leakage and maintain the integrity of the structure under high pressure water flow.

[0022] refer to Figure 6The protective head 2 has an internal pressure-resistant layer 17 with a thickness of five millimeters. The pressure-resistant layer 17 covers the interior of the protective head 2 and is made of stainless steel. Due to the presence of the pressure-resistant layer 17, the pressure resistance of the protective head 2 can be effectively improved. Under the pressure of water flow for a long time, it can remain undeformed and effectively improve the service life of the protective head 2.

[0023] Operating principle and advantages: During use, the reinforcing frame 4 effectively improves the stability of the protective head 2, while not obstructing the normal flow of water. The first locking block 12 allows the second locking block 13 to be inserted into the circular groove 10. Rotating the second locking block 13 to a position that does not correspond to the second groove 9 effectively secures the connector 3, preventing loosening or detachment. When disassembly for maintenance is required, the second locking block 13 is rotated to correspond to the second groove 9, and then the first locking block 12 is simply pulled out, effectively improving the efficiency of subsequent disassembly and maintenance of the connector 3. The presence of the retaining spring 11 allows for secondary locking of the second locking block 13, effectively improving the stability of the connector 3's locking mechanism. The opening of the sliding groove 19 facilitates the pulling of the connector 3. When disassembling the connector 3, it can be pulled out through the sliding groove 19, which also benefits the user in later use. The fixed-point installation of connector 3, due to the presence of bolt 7, effectively fixes the reinforcement frame 4 at the point of insertion, preventing displacement of the reinforcement frame 4. When it needs to be disassembled later, bolt 7 can be unscrewed from the screw hole 6. It also facilitates the user's later maintenance of the reinforcement frame 4. Due to the presence of anti-corrosion layer 18, its natural rubber material has high strength and good wear resistance, which can effectively improve the protection of the outer wall of the fire hose. Due to the presence of explosion-proof layer 16, its explosion-proof layer 16 has excellent wear resistance, oil resistance and chemical corrosion resistance, and also has good elasticity and strength. As the inner lining material of fire hose body 1, it can effectively prevent water leakage and maintain the integrity of the structure under high-pressure water flow. Due to the presence of pressure-resistant layer 17, it can effectively improve the pressure resistance of the protective head 2 itself. Under long-term water flow pressure, it can remain undeformed and effectively improve the service life of the protective head 2 itself.

Claims

1. A pressure-resistant and explosion-proof fire hose, comprising a fire hose body (1), characterized in that: A protective head (2) is installed on one side of the fire hose body (1). A connector (3) is snapped onto the outside of the protective head (2). The protective head (2) is located inside the connector (3). A reinforcing frame (4) is threaded onto one side of the protective head (2). The reinforcing frame (4) is cross-shaped. A first slot (8) is provided on the outside of the connector (3). The first slot (8) passes through the outside of the connector (3) and the protective head (2). A second slot (9) is provided on the inner wall of the first slot (8). A circular groove (10) is provided on the inner side of the first slot (8). A first locking block (12) is snapped onto the inner side of the first slot (8). A second locking block (13) that matches the second slot (9) is fixedly connected to the outside of the first locking block (12). The second locking block (13) is snapped onto the inner side of the circular groove (10).

2. The pressure-resistant and explosion-proof fire hose according to claim 1, characterized in that: The inner side of the circular groove (10) is fitted with a retaining ring (11) that matches the second retaining block (13). The bottom end of the second retaining block (13) is engaged with the top end of the retaining ring (11). The top end of the first retaining block (12) is fixedly connected with a sealing block (14). The sealing block (14) covers the top end of the first groove (8). The top end of the sealing block (14) is fixedly connected with a protrusion (15). The corner of the protrusion (15) is arc-shaped.

3. The pressure-resistant and explosion-proof fire hose according to claim 1, characterized in that: The inner wall of the connector (3) is provided with a groove (19) that matches the protective head (2), and the outer side of the protective head (2) is slidably connected to the inner side of the groove (19).

4. The pressure-resistant and explosion-proof fire hose according to claim 1, characterized in that: The outer side of the reinforcement frame (4) is fixedly connected to a fixing block (5). A screw hole (6) is provided on one side of the fixing block (5). The screw hole (6) passes through the fixing block (5) and one side of the protective head (2). A bolt (7) is threadedly connected to the inner side of the screw hole (6). The other side of the bolt (7) is threadedly connected to the inside of the protective head (2) through the screw hole (6). The reinforcement frame (4) is threadedly connected to one side of the protective head (2) through the fixing block (5), the screw hole (6) and the bolt (7).

5. The pressure-resistant and explosion-proof fire hose according to claim 1, characterized in that: The outer wall of the fire hose (1) is coated with an anti-corrosion layer (18), the thickness of the anti-corrosion layer (18) is five millimeters, the anti-corrosion layer (18) covers the outer wall of the fire hose (1), and the anti-corrosion layer (18) is made of natural rubber material.

6. The pressure-resistant and explosion-proof fire hose according to claim 1, characterized in that: The fire hose body (1) is provided with an explosion-proof layer (16) inside. The explosion-proof layer (16) is five millimeters thick and covers the interior of the fire hose body (1). The explosion-proof layer (16) is made of thermoplastic polyurethane material.

7. The pressure-resistant and explosion-proof fire hose according to claim 1, characterized in that: The protective head (2) has an internal pressure-resistant layer (17) with a thickness of five millimeters. The pressure-resistant layer (17) covers the interior of the protective head (2) and is made of stainless steel.

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