Fire hose with interface anti-dropping function

Abstract

The application discloses an interface anti-separation fire hose and belongs to the technical field of fire-fighting equipment. The existing water hose interface can cause water hammer effect when a water valve is opened or closed or water flow is changed, thereby causing the water hose interface to be broken and affecting the use of the water hose. The application discloses a water hose main body, a water hammer eliminator arranged on a bending connecting portion, and a flow guide pipe body. The bending connecting portion comprises a bending connecting pipe and a bending connecting seat. The bending connecting seat is fixedly connected with the water hose outer connecting pipe and is provided with an auxiliary connecting sleeve for connecting the flow guide pipe body. The water hammer eliminator is arranged to protect the water hose outer connecting pipe and the bending connecting portion when the water flow in the water hose main body is changed or the water hose main body is opened or closed, thereby avoiding the separation of the water hose outer connecting pipe and the bending connecting portion and the damage of the water hose main body.

Description

Technical Field

[0001] This invention belongs to the field of fire protection equipment technology, and specifically relates to a fire hose with an anti-detachment interface. Background Technology

[0002] Fire hoses are flexible tubes used to transport high-pressure water or flame-retardant liquids such as foam. Traditional fire hoses have a rubber inner lining and an outer surface covered with flax woven fabric, while improved fire hoses are made of polymer materials such as polyurethane. Both ends of the fire hose have metal connectors, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spray pressure.

[0003] Chinese patent CN114215982A discloses a fire hose connector, including a connector, a buckle, and a connector; the first end of the connector is connected to the buckle; the connector is detachably connected to the connector and sleeved on the second end of the connector; the outer wall of the second end of the connector forms a first limiting part, and the inner wall of the connector forms a second limiting part that cooperates with the first limiting part; the first limiting part and the second limiting part cooperate to clamp and limit a fire hose sleeved on the second end of the connector; however, in operation, existing fire hose connectors will experience water hammer effect when the water valve is opened or closed or the water flow changes, which will cause the fire hose connector to break and affect the use of the fire hose. Based on this, we propose a fire hose with an anti-detachment connector. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a fire hose with an anti-detachment interface. This solves the problem that existing hose interfaces experience water hammer during operation when water valves are opened or closed or water flow changes, leading to hose interface breakage and affecting hose use.

[0005] In existing technologies, water hammer effects occur at the hose connections when the water valve is opened or closed, or when the water flow changes, leading to hose rupture and affecting hose use. To address this, we propose a fire hose with anti-detachment design. In short, the fire hose includes a main body, which comprises an outer hose connector, a bent connection detachably connected to the outer hose connector, and a guide pipe. It also includes a water hammer eliminator mounted on the bent connection. The bent connection includes a bent connecting pipe, a bent connecting seat fixedly connected to the bent connecting pipe, and an auxiliary connecting sleeve for connecting the guide pipe. This invention incorporates a water hammer eliminator, which protects the outer hose connector and the bent connection when the water flow changes or when the hose is opened or closed, preventing the outer hose connector from detaching from the bent connection and thus avoiding damage to the main hose.

[0006] This invention is implemented as follows: a fire hose with an anti-detachment interface, the fire hose comprising:

[0007] The water hose body includes an outer hose connector, a bent connection portion detachably connected to the outer hose connector, and a guide pipe body.

[0008] A water hammer eliminator is installed on the bending connection part. The water hammer eliminator is used to eliminate the water hammer effect in the water hose body and to help protect the water hose body.

[0009] The bent connection portion includes:

[0010] Bending connecting pipe;

[0011] A bent connection seat is fixedly connected to the bent connection pipe; a water hammer eliminator is installed inside the bent connection seat; the bent connection seat is also fixedly connected to the outer pipe of the water hose; and

[0012] An auxiliary connecting sleeve is used to connect the guide tube body.

[0013] Preferably, the water hammer eliminator comprises:

[0014] A water hammer elimination seat is fixedly installed on a bent connecting seat, and a water flow slowing chamber is provided inside the water hammer elimination seat;

[0015] A water flow slowing section is slidably disposed within a water flow slowing cavity, and the water flow slowing section is slidably connected to the water flow slowing cavity;

[0016] A flow damping component is fixedly connected to the flow damping section of the water body, and the flow damping component is fixedly installed inside the water hammer elimination seat.

[0017] Preferably, the water slow-flow section includes:

[0018] A flow-slowing support, wherein at least one set of hinge slots is provided on the flow-slowing support;

[0019] A water flow slowing seat is fixedly connected to a slowing support seat. The water flow slowing seat is provided with multiple sets of auxiliary flow disturbance seats. The auxiliary flow disturbance seats are fixedly connected to the water flow slowing seat, and auxiliary flow disturbance grooves are opened in the auxiliary flow disturbance seats.

[0020] Preferably, the water hammer eliminator further includes:

[0021] At least one set of slow-flow reset parts are installed in the slow-flow cavity of the water body. The slow-flow reset parts are connected to the slow-flow support seat and are used to assist the slow-flow support seat in resetting.

[0022] Preferably, the slow-flow reset section includes:

[0023] At least one set of slow-flow reset grooves, wherein the slow-flow reset grooves are formed at the bottom of the water hammer elimination seat;

[0024] A flow-slowing reset component is installed in a flow-slowing reset groove. One end of the flow-slowing reset component is fixedly connected to a flow-slowing slide block, and the flow-slowing slide block is slidably connected to the flow-slowing reset groove.

[0025] A flow-slowing push rod is hinged to the flow-slowing slide, and the end of the flow-slowing push rod away from the flow-slowing slide is connected to the flow-slowing support.

[0026] Preferably, the bent connection portion further includes:

[0027] The tube body locking part is used to fix and connect guide tubes of different specifications;

[0028] The flow guide tube includes:

[0029] Flexible water hose, used for guiding the flow of water;

[0030] A conduit connector that is fixedly connected to a flexible water hose, wherein the conduit connector and the auxiliary connecting sleeve are detachably connected via a pipe body locking part.

[0031] Preferably, the tube locking part includes:

[0032] At least one set of pipe body locking seats, wherein the pipe body locking seats are provided with locking thread grooves;

[0033] The pipe locking rod is threadedly connected to the locking thread groove, and

[0034] A limiting slide groove is formed in the auxiliary connecting sleeve, and the limiting slide groove is slidably connected to the pipe body locking seat. The limiting slide groove is used to limit the pipe body locking seat.

[0035] Preferably, an anti-dislodgement component is further provided between the catheter connector and the auxiliary connecting sleeve to prevent the catheter connector from falling off. The anti-dislodgement component includes:

[0036] An anti-drop pressure seat is provided on one side of the pipe body locking seat;

[0037] The linkage pressure shaft is fixedly connected to the anti-drop pressure seat. The linkage pressure shaft is installed in the linkage groove, which is opened in the guide tube joint.

[0038] Preferably, the anti-fall-off component further includes:

[0039] The linkage gear installed at the end of the linkage pressure shaft, and

[0040] A linkage rack is fixedly installed in the linkage groove, and the linkage rack meshes with the linkage gear for transmission.

[0041] Preferably, the flexible water hose comprises the following raw materials in percentages: 30-60% linear low-density polyethylene, 10-30% vinyl TPO, 10-30% thermoplastic butyl rubber, 0.5-3% titanium dioxide, 0-10% SEBS, 0-40% inorganic filler, 0-2% grafted polyolefin, 0.3-1% silane coupling agent, 0.5-2.5% silicone oil, 0.3-1% silicone powder, 0-0.8% UV additive, 0-2% PEW, 0.2-0.5% stearate, 0.1-0.3% polyphenol antioxidant, and 0.2-0.6% ester-based auxiliary antioxidant.

[0042] Compared with the prior art, the embodiments of this application have the following main advantages:

[0043] The present invention includes a water hammer eliminator, which protects the outer hose connector and the bend connection when the water flow rate inside the hose changes or when the hose is opened or closed, thereby preventing the outer hose connector from detaching from the bend connection and avoiding damage to the hose body.

[0044] The embodiments of the present invention are provided with an anti-detachment component and a pipe locking part. The pipe locking part and the anti-detachment component work together to lock and limit the guide pipe joint and the auxiliary connecting sleeve. Furthermore, the pipe locking part and the anti-detachment component can also work together with the water hammer eliminator to prevent the main body of the water hose from being damaged or detached during water transportation. Attached Figure Description

[0045] Figure 1 This is a structural schematic diagram of the fire hose provided by the present invention.

[0046] Figure 2 This is an isometric view of the fire hose provided by the present invention.

[0047] Figure 3 This is a front view of the fire hose provided by the present invention.

[0048] Figure 4 This is a top view of the fire hose provided by the present invention.

[0049] Figure 5 yes Figure 3 A sectional view along line AA.

[0050] Figure 6 This is a schematic diagram of the water hammer eliminator provided by the present invention.

[0051] Figure 7 This is a side view of the water hammer eliminator provided by the present invention.

[0052] Figure 8 This is a top view of the water hammer eliminator provided by the present invention.

[0053] Figure 9 This is a schematic diagram of the structure of the water slow-flow section provided by the present invention.

[0054] Figure 10 This is a schematic diagram of the anti-fall-off component provided by the present invention.

[0055] Figure 11 This is an isometric view of the anti-fall-off component provided by the present invention.

[0056] In the diagram: 1-Hose body, 11-Hose outer connector, 12-Bending connection, 121-Bending connector seat, 122-Bending connector pipe, 123-Auxiliary connecting sleeve, 124-Pipe locking seat, 125-Pipe locking rod, 126-Limiting groove, 13-Guide pipe body, 131-Flexible hose, 132-Conduit connector, 133-Linkage groove, 14-Anti-detachment component, 141-Anti-detachment pressure seat, 142-Linkage rack. 143-Linkage pressure shaft, 144-Linkage gear, 2-Water hammer eliminator, 21-Water hammer eliminator seat, 22-Water flow stabilization chamber, 23-Slow flow damping component, 24-Water flow stabilization section, 241-Slow flow bearing seat, 242-Water flow stabilization seat, 243-Auxiliary turbulence seat, 244-Auxiliary turbulence groove, 25-Slow flow reset section, 251-Slow flow push rod, 252-Slow flow slide, 253-Slow flow reset groove, 254-Slow flow reset component. Detailed Implementation

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0058] In existing technologies, when the water valve is opened or closed or the water flow changes, the existing hose joints will experience water hammer, which can lead to hose joint breakage and affect the use of the hose. Based on this, we propose a fire hose with anti-detachment joint. In short, the fire hose includes a hose body 1, which includes an outer hose connector 11, a bent connection part 12 detachably connected to the outer hose connector 11, and a guide pipe body 13. It also includes a water hammer eliminator 2 installed on the bent connection part 12. The bent connection part 12 includes a bent connection pipe 122, a bent connection seat 121 fixedly connected to the bent connection pipe 122, and an auxiliary connection sleeve 123 for connecting the guide pipe body 13. The present invention includes a water hammer eliminator 2. The water hammer eliminator 2 can protect the outer hose connector 11 and the bent connection part 12 when the water flow rate in the hose body 1 changes or when the hose body 1 is opened or closed, thereby preventing the outer hose connector 11 from detaching from the bent connection part 12 and avoiding damage to the hose body 1.

[0059] This invention provides a fire hose with an anti-detachment interface, such as... Figures 1-5 As shown, the fire hose includes:

[0060] The water hose body 1 includes a water hose outer connector 11, a bent connection part 12 detachably connected to the water hose outer connector 11, and a guide pipe body 13.

[0061] A water hammer eliminator 2 is provided on the bending connection 12. The water hammer eliminator 2 is used to eliminate the water hammer effect in the water hose body 1 and to help protect the water hose body 1.

[0062] The bent connecting portion 12 includes:

[0063] 122 bendable connecting pipe;

[0064] A bent connecting seat 121 is fixedly connected to the bent connecting pipe 122. A water hammer eliminator 2 is installed inside the bent connecting seat 121. The bent connecting seat 121 is also fixedly connected to the water hose outer connector 11.

[0065] An auxiliary connecting sleeve 123 is used to connect the guide tube body 13.

[0066] In this embodiment, the bent connecting pipe 122 and the bent connecting seat 121 are fixedly connected by a sealing flange. The bent connecting seat 121 can be a rectangular seat or a round seat. The bent connecting seat 121 and the water hose outer connecting pipe 11 can be fixed by a flange and threaded connection. The water hose outer connecting pipe 11 can be connected to a fire pump or fire truck to realize fire water injection.

[0067] It should be noted that the bent connecting pipe 122 can be an "L" shaped pipe or a "V" shaped pipe, and the bent connecting pipe 122 is made of stainless steel or engineering plastic.

[0068] The present invention includes a water hammer eliminator 2. The water hammer eliminator 2 can protect the outer hose connector 11 and the bent connection part 12 when the water flow rate in the hose body 1 changes or when the hose body 1 is opened or closed, thereby preventing the outer hose connector 11 from detaching from the bent connection part 12 and avoiding damage to the hose body 1.

[0069] In a further preferred embodiment of the present invention, such as Figures 6-8 As shown, the water hammer eliminator 2 includes:

[0070] Water hammer elimination seat 21, which is fixedly installed on the bent connecting seat 121, and a water flow slowing cavity 22 is provided inside the water hammer elimination seat 21;

[0071] It should be noted that the water hammer elimination seat 21 is specifically a hollow round or rectangular seat, and the water hammer elimination seat 21 is fixedly installed on any side of the bent connecting seat 121 by threads or fastening bolts.

[0072] A water flow slowing part 24 is slidably disposed in the water flow slowing cavity 22, and the water flow slowing part 24 is slidably connected to the water flow slowing cavity 22.

[0073] The flow damping component 23 is fixedly connected to the water flow damping section 24 and is fixedly installed inside the water hammer elimination seat 21.

[0074] In this embodiment, the flow damping component 23 provides vibration damping protection for the water flow damping section 24. Specifically, the flow damping component 23 can be a spring telescopic rod, a hydraulic telescopic rod, or a damping spring. The flow damping component 23 and the water flow damping section 24 work together to effectively reduce the impact of the water flow, thereby eliminating the water hammer effect and protecting the fire-fighting water body.

[0075] In a further preferred embodiment of the present invention, such as Figure 9 As shown, the water flow slowing section 24 includes:

[0076] Slow-flow support 241, wherein at least one set of hinge slots are provided on the slow-flow support 241;

[0077] A water flow slowing seat 242 is fixedly connected to the slowing support seat 241. The water flow slowing seat 242 is provided with multiple sets of auxiliary flow disturbance seats 243. The auxiliary flow disturbance seats 243 are fixedly connected to the water flow slowing seat 242, and auxiliary flow disturbance grooves 244 are opened in the auxiliary flow disturbance seats 243.

[0078] In this embodiment, the flow-slowing support 241 is specifically a rectangular or circular support, and the flow-slowing support 241 and the water flow-slowing support 242 are fixedly connected by tenon or riveting. The water flow-slowing support 242 can be a conical plate or an arc plate structure. The auxiliary flow-disrupting support 243 is circumferentially arranged on the side wall of the auxiliary flow-disrupting support 243, and the auxiliary flow-disrupting groove 244 can be a threaded groove or a rectangular groove. The setting of the auxiliary flow-disrupting groove 244 further realizes the turbulence of water flow and avoids the strong impact of water on the water flow-slowing support 242.

[0079] In a further preferred embodiment of the present invention, such as Figure 6 As shown, the water hammer eliminator 2 further includes:

[0080] At least one set of slow-flow reset parts 25 are installed in the water slow-flow cavity 22. The slow-flow reset parts 25 are connected to the slow-flow support 241 and are used to assist the slow-flow support 241 in resetting.

[0081] In this embodiment, the slow-flow reset unit 25 includes:

[0082] At least one set of slow-flow reset grooves 253 are provided at the bottom of the water hammer elimination seat 21;

[0083] A flow-slowing reset component 254 is installed in the flow-slowing reset groove 253. One end of the flow-slowing reset component 254 is fixedly connected to a flow-slowing slide 252. The flow-slowing slide 252 is slidably connected to the flow-slowing reset groove 253.

[0084] The slow-flow push rod 251 is hinged to the slow-flow slide 252, and the end of the slow-flow push rod 251 away from the slow-flow slide 252 is connected to the slow-flow support 241.

[0085] It should be noted that the slow-flow reset part 25 is arranged circumferentially inside the water hammer elimination seat 21. The arrangement of the slow-flow reset part 25 ensures that the water flow slow seat 242 can be reset after being impacted by water flow, thereby protecting the water hose body 1 during the next water flow impact and effectively eliminating the water hammer effect.

[0086] In this embodiment, the slow-flow reset groove 253 can be a rectangular groove or a "T" shaped groove, and the slow-flow reset component 254 can be a spring telescopic rod or a reset spring. The slow-flow reset component 254 is fixedly installed in the slow-flow reset groove 253 by press riveting. The telescopic end of the slow-flow reset component 254 is welded or riveted to the slow-flow slide 252, and the slow-flow push rod 251 is circumferentially inclined. One end of the slow-flow push rod 251 is hinged to the hinge groove in the slow-flow bearing seat 241.

[0087] When the water valve is opened or closed or the water flow changes, a water hammer effect will occur between the bent connecting seat 121 and the water hose external pipe 11. At this time, the water in the bent connecting seat 121 impacts the water flow slowing seat 242, the water flow slowing seat 242 squeezes the slowing bearing seat 241, and the slowing bearing seat 241 squeezes the slowing damping component 23. The slowing damping component 23 provides shock absorption protection for the water flow slowing seat 242 and the slowing bearing seat 241. When the slowing bearing seat 241 moves up and down, it can drive the slowing push rod 251 to move, so that the slowing push rod 251 pulls the slowing slide seat 252 to slide. The slowing reset component 254 ensures that the water flow slowing seat 242 and the slowing bearing seat 241 are reset in time.

[0088] In a further preferred embodiment of the present invention, such as Figures 10-11 As shown, the bent connecting portion 12 further includes:

[0089] Pipe locking part, the pipe locking part is used to fix and connect guide pipes 13 of different specifications;

[0090] The flow guide tube 13 includes:

[0091] Flexible water hose 131 is used for guiding the flow of water.

[0092] The conduit connector 132 is fixedly connected to the flexible water hose 131, and the conduit connector 132 is detachably connected to the auxiliary connecting sleeve 123 through the pipe body locking part.

[0093] It should be noted that the flexible water hose 131 and the conduit connector 132 are fixedly connected by a fastening clamp and a sealing gasket. The conduit connector 132 can be a hollow round seat or a rectangular seat.

[0094] In this embodiment, considering that traditional fire hoses consist of a soft PVC inner layer and a polyester braided support tube, bonded together with liquid PU adhesive or TPU hot melt adhesive using low-pressure steam, this method is limited by the steam heat sealing process, resulting in a limited length of a single hose and making it unsuitable for long-distance water transport. Furthermore, existing fire hose coils are bulky and heavy, PVC has poor low-temperature resistance, and PU adhesive or TPU hot melt adhesive has poor hydrolysis and aging resistance, leading to easy breakage and leakage, wasting water resources. Additionally, the hoses are composed of three incompatible polymer materials, with a high proportion of PVC, making it impossible to recycle or reuse the hoses after they are scrapped, and also inconvenient for pyrolysis or incineration. Therefore, this embodiment of the invention also improves the material of the fire hoses.

[0095] The flexible water hose 131 comprises the following raw materials in percentages: 30-60% linear low-density polyethylene, 10-30% vinyl TPO, 10-30% thermoplastic butyl rubber, 0.5-3% titanium dioxide, 0-10% SEBS, 0-40% inorganic filler, 0-2% grafted polyolefin, 0.3-1% silane coupling agent, 0.5-2.5% silicone oil, 0.3-1% silicone powder, 0-0.8% UV additive, 0-2% PEW, 0.2-0.5% stearate, 0.1-0.3% polyphenol antioxidant, and 0.2-0.6% ester-based auxiliary antioxidant.

[0096] It should be noted that the flexible water hose 131 of this invention uses linear low-density polyethylene, a low-cost, abundant, and readily available raw material with good overall performance, which is beneficial for controlling product costs. Vinyl TPO includes copolymers of ethylene with C4, C6, and C8 olefins such as POE and m-LLDPE. The vinyl elastomer is used to improve the softness and elasticity of LLDPE, exhibiting excellent low-temperature resistance, good abrasion resistance, and a significant increase in tensile strength after radiation crosslinking. Thermoplastic butyl rubber has excellent dissipation properties, reducing stress during folding, twisting, and bending of soft materials, comprehensively improving the problem of folding angle damage in soft materials. The use of thermoplastic butyl rubber in this invention ensures the processability required for extruding water hoses. Titanium dioxide, specifically flake-shaped rutile TiO2, has strong UV reflectivity, improving the UV resistance of outdoor products.

[0097] In this embodiment, the flexible water hose 131 contains SEBS, which further improves the flexibility of the water hose and gives it certain rubber-like properties. The SEBS 1.2 structure content is greater than 60%, and the weight-average molecular weight is <12w. In this embodiment, the inorganic fillers include 800-5000 mesh calcium carbonate, talc, barium sulfate, and sodium carbonate, which can improve elongation at constant tension, reduce surface damping, and lower costs. The grafted polyolefins include maleic acid grafts and GMA grafts for PP, PE, and POE, with a grafting rate >0.8%. Grafted polyolefins improve the compatibility of the entire formulation and, when the formulation contains inorganic fillers, prevent the fillers from damaging the tensile strength, elongation, tear strength, and abrasion resistance of the polymer.

[0098] In this embodiment, the silane coupling agent is specifically KH570; the stearate is one or more of calcium stearate, zinc stearate, and magnesium stearate; and the ester-based auxiliary antioxidant is phosphate esters, thiosulfate esters, etc.

[0099] In this invention, a manufacturing process for the flexible water hose 131 is also proposed, specifically including:

[0100] Step S10: Mix the above components in proportion, then use a twin-screw extruder to granulate the mixture at an extrusion temperature of 145-195 degrees Celsius to obtain granular water pipe raw material.

[0101] In step S20, the granular water pipe raw material obtained in step S10 is extruded into a hose with an arm thickness of 0.2-1.0 mm in a single screw extruder equipped with a melt pump and then wound up.

[0102] Step S30: The water pipe obtained in step S20 is subjected to irradiation crosslinking. The irradiation dose is 8-15 Mrad, which is adjusted according to the thickness of the water pipe arm and the pressure resistance requirements.

[0103] The flexible water hose 131 made using the above method and raw materials has good flexibility, abrasion resistance, and stain resistance. It also has the advantages of UV resistance, ozone resistance, drag resistance, high elongation, and kinking resistance. Among them, high elongation ensures the pressure resistance of the water hose, and the flexible water hose does not expand under certain water pressure conditions. Kinking resistance means that, unlike woven fabrics, even sufficiently soft polymer materials are prone to "folding angles" during use, winding, and folding. These "folding angles" can easily damage fire hoses. The flexible water hose 131 in this application has kinking resistance, thereby avoiding damage to the flexible water hose 131 during use.

[0104] In this embodiment, the tube locking part includes:

[0105] At least one set of pipe body locking seats 124, wherein the pipe body locking seats 124 are provided with locking thread grooves;

[0106] The pipe locking rod 125 is threadedly connected to the locking thread groove, and

[0107] A limiting groove 126 is provided in the auxiliary connecting sleeve 123. The limiting groove 126 is slidably connected to the pipe body locking seat 124. The limiting groove 126 is used to limit the pipe body locking seat 124.

[0108] In this embodiment, the tube locking seat 124 can be three, four or six sets, and the tube locking seat 124 can be an arc-shaped plate or a rectangular plate. The tube locking seat 124 and the tube locking rod 125 work together to lock and limit the conduit connector 132 and the auxiliary connecting sleeve 123.

[0109] In a further preferred embodiment of the present invention, such as Figure 10 As shown, an anti-dislodgement component 14 is also provided between the catheter connector 132 and the auxiliary connecting sleeve 123 to prevent the catheter connector 132 from falling off from the auxiliary connecting sleeve 123. The anti-dislodgement component 14 includes:

[0110] Anti-drop pressure seat 141, the anti-drop pressure seat 141 is disposed on one side of the pipe body locking seat 124;

[0111] The linkage pressure shaft 143 is fixedly connected to the anti-drop pressure seat 141. The linkage pressure shaft 143 is installed in the linkage groove 133, which is opened in the conduit connector 132.

[0112] The linkage gear 144 installed at the end of the linkage pressure shaft 143, and

[0113] A linkage rack 142 is fixedly installed in the linkage groove 133, and the linkage rack 142 meshes with the linkage gear 144 for transmission.

[0114] The present invention includes an anti-detachment component 14 and a pipe locking part. The pipe locking part and the anti-detachment component 14 work together to lock and limit the conduit joint 132 and the auxiliary connecting sleeve 123. The pipe locking part and the anti-detachment component 14 can also work together with the water hammer eliminator 2 to prevent the water hose body 1 from being damaged or detached during water transportation.

[0115] In this embodiment, when the pipe locking seat 124 is dislodged from the conduit connector 132 due to external force impact or water hammer impact, the pipe locking seat 124 presses against the anti-dislodgement pressure seat 141. The anti-dislodgement pressure seat 141 drives the linkage pressure shaft 143 to rotate, and the linkage pressure shaft 143 drives the linkage gear 144 to rotate. This causes the linkage gear 144 to push the linkage rack 142 and the conduit connector 132 closer to the auxiliary connecting sleeve 123, effectively preventing the pipe locking seat 124 from dislodging from the conduit connector 132 due to external force impact or water hammer impact.

[0116] In summary, the present invention provides a fire hose with anti-detachment interface. The embodiment of the present invention is provided with a water hammer eliminator 2. The water hammer eliminator 2 can protect the outer hose connector 11 and the bending connection part 12 when the water flow rate in the hose body 1 changes or when the hose body 1 is opened and closed, thereby preventing the outer hose connector 11 from detaching from the bending connection part 12 and avoiding damage to the hose body 1.

[0117] When the water valve is opened or closed or the water flow changes, a water hammer effect will occur between the bent connecting seat 121 and the water hose external pipe 11. At this time, the water in the bent connecting seat 121 impacts the water flow slowing seat 242, the water flow slowing seat 242 squeezes the slowing bearing seat 241, and the slowing bearing seat 241 squeezes the slowing damping component 23. The slowing damping component 23 provides shock absorption protection for the water flow slowing seat 242 and the slowing bearing seat 241. When the slowing bearing seat 241 moves up and down, it can drive the slowing push rod 251 to move, so that the slowing push rod 251 pulls the slowing slide seat 252 to slide. The slowing reset component 254 ensures that the water flow slowing seat 242 and the slowing bearing seat 241 are reset in time.

[0118] The flexible water hose 131 in this embodiment of the invention has good flexibility, wear resistance, and stain resistance. It also has the advantages of UV resistance, ozone resistance, drag resistance, high elongation, and kinking resistance. High elongation ensures the pressure resistance of the water hose, so that the flexible water hose does not expand under certain water pressure conditions. Kinking resistance means that, unlike woven fabrics, even sufficiently soft polymer materials are prone to "folding angles" during use, winding, and folding. These "folding angles" can easily damage fire hoses. The flexible water hose 131 in this application has kinking resistance, thereby avoiding damage to the flexible water hose 131 during use.

[0119] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0120] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0121] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A fire hose, the fire hose comprising: The water hose body (1) includes a water hose outer connector (11), a bent connection part (12) detachably connected to the water hose outer connector (11), and a guide pipe body (13). The feature is that a water hammer eliminator (2) is provided on the bending connection part (12), the water hammer eliminator (2) is used to eliminate the water hammer effect in the water hose body (1) and to help protect the water hose body (1). The bent connecting part (12) includes: Bending connecting pipe (122); A bent connector (121) is fixedly connected to the bent connector (122), a water hammer eliminator (2) is installed inside the bent connector (121), and the bent connector (121) is also fixedly connected to the water hose outer connector (11). An auxiliary connecting sleeve (123) for connecting the guide tube body (13). The bent connection (12) further includes: Pipe locking part, the pipe locking part is used to fix and connect guide pipes of different specifications (13). The guide tube (13) includes: A flexible water hose (131) is used for guiding the flow of water. A conduit connector (132) is fixedly connected to a flexible water hose (131), and the conduit connector (132) is detachably connected to an auxiliary connecting sleeve (123) via a pipe body locking part; The tube locking part includes: At least one set of pipe body locking seats (124), wherein the pipe body locking seats (124) are provided with locking thread grooves; The pipe locking rod (125) is threadedly connected to the locking thread groove, and A limiting slide groove (126) is provided in the auxiliary connecting sleeve (123). The limiting slide groove (126) is slidably connected to the pipe body locking seat (124). The limiting slide groove (126) is used to limit the pipe body locking seat (124). An anti-dislodgement component (14) is also provided between the catheter connector (132) and the auxiliary connecting sleeve (123) to prevent the catheter connector (132) from falling off from the auxiliary connecting sleeve (123). The anti-dislodgement component (14) includes: Anti-drop pressure seat (141), the anti-drop pressure seat (141) is disposed on one side of the pipe body locking seat (124); A linkage pressure shaft (143) is fixedly connected to the anti-drop pressure seat (141). The linkage pressure shaft (143) is installed in the linkage groove (133), which is located in the conduit connector (132). The anti-fall-off component (14) also includes: The linkage gear (144) installed at the end of the linkage pressure shaft (143), and A linkage rack (142) is fixedly installed in the linkage groove (133), and the linkage rack (142) meshes with the linkage gear (144) for transmission; The flexible water hose (131) comprises the following raw materials in percentages: 30-60% linear low-density polyethylene, 10-30% vinyl TPO, 10-30% thermoplastic butyl rubber, 0.5-3% titanium dioxide, 0-10% SEBS, 0-40% inorganic filler, 0-2% grafted polyolefin, 0.3-1% silane coupling agent, 0.5-2.5% silicone oil, 0.3-1% silicone powder, 0-0.8% UV additive, 0-2% PEW, 0.2-0.5% stearate, 0.1-0.3% polyphenol antioxidant, and 0.2-0.6% ester-based auxiliary antioxidant.

2. The fire hose as described in claim 1, characterized in that: The water hammer eliminator (2) includes: Water hammer elimination seat (21), the water hammer elimination seat (21) is fixedly installed on the bent connecting seat (121), and a water slow flow cavity (22) is provided inside the water hammer elimination seat (21). A water slow-flow section (24) is slidably disposed in the water slow-flow cavity (22), and the water slow-flow section (24) is slidably connected to the water slow-flow cavity (22); The slow-flow damping component (23) is fixedly connected to the slow-flow section (24) of the water body, and the slow-flow damping component (23) is fixedly installed inside the water hammer elimination seat (21).

3. The fire hose as described in claim 2, characterized in that: The slow-flowing section of the water body (24) includes: Slow-flow bearing seat (241), wherein at least one set of hinge grooves is provided on the slow-flow bearing seat (241); A water flow slowing seat (242) is fixedly connected to the slowing support seat (241). The water flow slowing seat (242) is provided with multiple sets of auxiliary flow disturbance seats (243). The auxiliary flow disturbance seats (243) are fixedly connected to the water flow slowing seat (242), and auxiliary flow disturbance grooves (244) are opened in the auxiliary flow disturbance seats (243).

4. The fire hose as described in claim 3, characterized in that: The water hammer eliminator (2) also includes: At least one set of slow-flow reset parts (25) are installed in the water slow-flow cavity (22). The slow-flow reset parts (25) are connected to the slow-flow support seat (241). The slow-flow reset parts (25) are used to assist the slow-flow support seat (241) in resetting.

5. The fire hose as described in claim 4, characterized in that: The slow-flow reset section (25) includes: At least one set of slow-flow reset grooves (253) are provided at the bottom of the water hammer elimination seat (21); A flow-slowing reset component (254) is installed in the flow-slowing reset groove (253). One end of the flow-slowing reset component (254) is fixedly connected to a flow-slowing slide (252). The flow-slowing slide (252) is slidably connected to the flow-slowing reset groove (253). A flow-slowing push rod (251) is hinged to the flow-slowing slide (252), and one end of the flow-slowing push rod (251) away from the flow-slowing slide (252) is connected to the flow-slowing support (241).

Images