Vehicle air conditioner pipeline with flame-retardant structure

Abstract

The utility model discloses a vehicle air conditioner pipeline with a flame-retardant structure, which comprises a pipeline main body, and a blocking section is arranged on the pipeline main body; the blocking joint comprises an inner pipe fixedly connected with the pipeline body, a limiting sleeve is slidably connected to the inner pipe, the end, away from the pipeline body, of the inner pipe communicates with an extension pipe through a hose, the hose is wrapped with the limiting sleeve, and a pull belt is further fixedly connected to the inner pipe. According to the air conditioner pipeline, the blocking joint is arranged, the limiting sleeve is used for supporting the extension pipe, the air supply effect can be guaranteed when the air conditioner pipeline is used in daily life, when fire breaks out, the pulling belt can be contracted through high temperature, after the pulling belt is used for driving the limiting sleeve to move, the extension pipe can be driven to move, the extension pipe is separated from the connecting sleeve, and the air conditioner pipeline is convenient to use. And the hose is driven to be bent, so that smoke is prevented from flowing to a cab through an air conditioner pipeline, a better flame-retardant effect is achieved, and high-temperature smoke is prevented from entering the cab to ignite automotive trim.

Description

TECHNICAL FIELD

[0001] The utility model relates to car parts equipment technical field especially with fire -retardant structure's vehicle air conditioning pipeline. BACKGROUND

[0002] Vehicle air conditioner is by compressor, condenser, throttling element, evaporator, fan and necessary control components constitute, for adjusting the temperature, humidity in the car, gives the passenger comfortable environment's air conditioning system, vehicle air conditioning pipeline is by the fan drive air in the car through the pipeline and evaporator, condenser heat exchange's pipeline.

[0003] In the prior art, in the vehicle air conditioning pipeline of the fuel vehicle, there will be a branch way near the engine, in winter, the engine waste heat is used for heating, and when the vehicle is involved in a traffic accident, the engine compartment of the fuel vehicle is easy to catch fire, and high-temperature flue gas is easy to enter the cab through the air conditioning pipeline, and the high-temperature flue gas entering the cab is also easy to ignite the automotive interior, therefore, we propose a vehicle air conditioning pipeline with a fire -retardant structure to solve the above problems. SUMMARY

[0004] The utility model discloses a vehicle air conditioning pipeline with a fire -retardant structure to solve the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A vehicle air conditioning pipeline with a fire -retardant structure, including pipeline main part, be provided with the block section on the pipeline main part;

[0007] The block section includes the inner tube fixedly connected with the pipeline main part, the inner tube is slidably connected with the limiting sleeve, and the end of the inner tube away from the pipeline main part is communicated with the extension pipe through the hose, the limiting sleeve is wrapped with the hose, the inner tube is also fixedly connected with the pull belt, the limiting sleeve is provided with the accommodation slot, the pull belt penetrates the accommodation slot and is fixedly connected with the extension pipe, the middle part of the pull belt is also fixedly connected with the connecting buckle, and the connecting buckle is fixedly connected with the inner wall of the accommodation slot, and the end of the extension pipe away from the inner tube is provided with the connecting sleeve.

[0008] Preferably, the connecting sleeve includes a sleeve shell, a sealing ring is arranged on the inner wall of the sleeve shell, the extension pipe is slidably connected with the inner wall of the sealing ring, an adapter pipe is arranged at the end of the sleeve shell away from the connecting sleeve, and a flared portion is arranged between the adapter pipe and the sleeve shell.

[0009] Preferably, the pull belt is made of polyolefin material, the inner tube is made of metal material, and the inner tube is provided with a heat conduction sheet, and the heat conduction sheet is arranged opposite to the pull belt.

[0010] Preferably, the hose is made of fire-retardant rubber material, and a metal wire is embedded on the hose.

[0011] Preferably, a baffle is further arranged on the hose and fixedly connected with the metal wire.

[0012] Preferably, an extension edge is arranged on one end of the sealing ring close to the extension pipe, and the extension edge is arranged around the extension pipe.

[0013] Compared with the prior art, the air conditioner pipeline with the fire-retardant structure has the following beneficial effects:

[0014] 1. The air conditioner pipeline with the fire-retardant structure can guarantee the air supply effect during daily use, and when a fire hazard occurs, the extension pipe can be separated from the connecting sleeve and the hose can be bent to block the smoke from flowing to the cab through the air conditioner pipeline, thereby achieving a good fire-retardant effect and avoiding the high-temperature smoke from entering the cab to ignite the interior of the vehicle.

[0015] 2. The air conditioner pipeline with the fire-retardant structure can ensure that the extension pipe can be pulled out of the sleeve shell after the vehicle catches fire in a high-temperature environment, so that the entire pipeline is disconnected, and the hose can also be bent to prevent the smoke from passing through the blocking section, thereby avoiding the fire risk caused by high-temperature smoke and the threat of toxic and harmful substances in the smoke to the safety of the driver and passengers. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The utility model provides a sectional structure schematic diagram of a vehicle air conditioner pipeline with a fire-retardant structure.

[0017] Fig. 2 The utility model provides a limiting sleeve structure schematic diagram of a vehicle air conditioner pipeline with a fire-retardant structure.

[0018] Fig. 3 The utility model provides a blocking state structure schematic diagram of a vehicle air conditioner pipeline with a fire-retardant structure.

[0019] In the drawing: 1, pipeline main body; 2, inner tube; 3, limiting sleeve; 4, extension pipe; 5, hose; 6, pull belt; 7, connecting buckle; 8, sleeve shell; 9, sealing ring; 10, adapter pipe; 11, heat-conducting sheet; 12, metal wire; 13, baffle; 14, extension edge. DETAILED DESCRIPTION

[0020] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0021] Referring to Figs. 1-3 The utility model discloses a vehicle air conditioner pipeline with fire -retardant structure, including pipeline main body 1, wherein the air conditioner pipeline is connected heat exchange spare (such as evaporator and condenser etc.

[0022] The blocking section includes the inner tube 2 fixedly connected with the pipeline main body 1, the inner tube 2 is slidably connected with the limiting sleeve 3, and the end, away from the pipeline main body 1, of the inner tube 2 is communicated with the extension pipe 4 through the hose 5, the limiting sleeve 3 is arranged to wrap the hose 5, the inner tube 2 is further fixedly connected with the drawstring 6, the drawstring 6 is made of polyolefin material, the inner tube 2 is made of metal material, and the inner tube 2 is provided with the heat conduction sheet 11, the heat conduction sheet 11 is arranged in abutment with the drawstring 6, the limiting sleeve 3 is provided with the accommodation groove, the drawstring 6 penetrates the accommodation groove and is fixedly connected with the extension pipe 4, the middle part of the drawstring 6 is further fixedly connected with the connecting buckle 7, and the connecting buckle 7 is fixedly connected with the inner wall of the accommodation groove, and the end, away from the inner tube 2, of the extension pipe 4 is provided with the connecting sleeve,

[0023] The polyolefin material is a high molecular material that shrinks rapidly and has good elasticity after being heated, mainly applied in the field of heat-shrinkable tubes, and the heat-shrinkage temperature is above 95 degrees Celsius, and no morphological change occurs under normal conditions.

[0024] When the vehicle is involved in a traffic accident and collides, there is a high risk of engine fire, and the driver and passengers are prone to coma due to the oscillation when colliding, at this time, the high-temperature flue gas enters the cab along the air supply pipeline, and the high-temperature flue gas is easy to cause the interior of the car to catch fire, and the carbon monoxide and other toxic and harmful gases in the flue gas are also easy to endanger the lives of the driver and passengers.

[0025] Based on the above design, after the car catches fire, the limiting sleeve 3 can be moved away from the hose 5 by the contraction of the drawstring 6, so that the hose 5 can rotate freely, and the extension pipe 4 is moved, so that the extension pipe 4 is separated from the connecting sleeve and can rotate freely, after the hose 5 rotates, the bent hose 5 will be bent and blocked, so that the high-temperature flue gas is blocked, thereby effectively avoiding the risk of the interior of the car catching fire, and the toxic and harmful gases produced by the burning can also enter the cab.

[0026] In the design, the connecting sleeve comprises a sleeve shell 8, an inner wall of the sleeve shell 8 is provided with a sealing ring 9, the extension pipe 4 is in sliding connection with the inner wall of the sealing ring 9, an end of the sleeve shell 8 away from the connecting sleeve is provided with an adapter pipe 10, and a flared portion is arranged between the adapter pipe 10 and the sleeve shell 8.

[0027] The flared portion is arranged between the adapter pipe 10 and the sleeve shell 8.

[0028] Further, the hose 5 is made of flame-retardant rubber material, and a metal wire 12 is embedded on the hose 5, and a baffle 13 is further arranged on the hose 5, and the baffle 13 is fixedly connected with the metal wire 12.

[0029] In the design, the metal wire 12 can improve the strength of the hose 5, the metal wire 12 is in a mesh shape, so as to avoid the hose 5 from being broken under high temperature, and the baffle 13 can continue to block the inner pipe 2 after the hose 5 is damaged, wherein the baffle 13 is an elastic metal sheet and is embedded in the hose 5, the baffle 13 is supported by the metal wire 12 to block the inner pipe 2, and does not need to have high strength, but only needs to have high temperature resistance.

[0030] Further, an extension edge 14 is arranged on one end of the sealing ring 9 close to the extension pipe 4, and the extension edge 14 wraps the extension pipe 4, the extension edge 14 can more effectively seal the extension pipe 4 and the connecting sleeve, and will not hinder the extension pipe 4, so as to avoid that the leakage of cold air or warm air affects the energy efficiency of the vehicle air conditioner.

[0031] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A vehicle air conditioning duct with a flame retardant structure, comprising a duct main body (1), characterized in that, The pipeline body is provided with a blocking section; The blocking section comprises an inner tube (2) fixedly connected with the pipeline body (1), a limiting sleeve (3) is slidably connected on the inner tube (2), and an extension tube (4) is communicated with the inner tube (2) through a hose (5) away from the pipeline body (1), the limiting sleeve (3) is arranged to wrap the hose (5), the inner tube (2) is further fixedly connected with a pull belt (6), a let-in slot is formed on the limiting sleeve (3), the pull belt (6) penetrates through the let-in slot and is fixedly connected with the extension tube (4), a connecting buckle (7) is further fixedly connected to the middle part of the pull belt (6), and the connecting buckle (7) is fixedly connected with the inner wall of the let-in slot, and a connecting sleeve is arranged at the end of the extension tube (4) away from the inner tube (2).

2. The air conditioning pipe for vehicle with fire-retardant structure according to claim 1, characterized in that, The connecting sleeve comprises a sleeve shell (8), a sealing ring (9) is arranged on the inner wall of the sleeve shell (8), the extension tube (4) is slidably connected with the inner wall of the sealing ring (9), an adapter pipe (10) is arranged at the end of the sleeve shell (8) away from the connecting sleeve, and a flared portion is arranged between the adapter pipe (10) and the sleeve shell (8).

3. The vehicle air conditioning duct with a flame-retardant structure according to claim 1, characterized by The pull belt (6) is made of polyolefin material, the inner tube (2) is made of metal material, and the inner tube (2) is provided with a heat conducting sheet (11), and the heat conducting sheet (11) is arranged in abutment with the pull belt (6).

4. The air conditioning pipe for vehicle with fire-retardant structure according to claim 1, characterized in that, The hose (5) is made of flame-retardant rubber material, and a metal wire (12) is embedded on the hose (5).

5. The air conditioning pipe for vehicle with fire-retardant structure according to claim 4, characterized in that, The hose (5) is further provided with a baffle (13), and the baffle (13) is fixedly connected with the metal wire (12).

6. The air conditioning pipe for vehicle with fire-retardant structure according to claim 2, characterized in that, The sealing ring (9) is provided with an extension edge (14) close to the extension tube (4), and the extension edge (14) is arranged to wrap the extension tube (4).

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