Under-vehicle drain pipe anti-freezing structure integrating flow guide and heating functions
By installing spiral guide vanes and electric heating wires inside the drain pipe, along with insulation and protective sleeves, the problem of traditional under-vehicle drain pipes easily freezing in low-temperature environments is solved, achieving antifreeze effects and improving vehicle usability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU RUILILONG ELECTRIC EQUIP CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional under-vehicle drain pipes are prone to freezing in low-temperature environments, leading to blockages and pipe ruptures, increasing the frequency of maintenance and reducing vehicle availability.
Spiral guide vanes and electric heating wires are installed inside the drain pipe, combined with insulation and protective sleeves, to prevent water from freezing by guiding and heating, thus enhancing the antifreeze performance of the drain pipe.
It effectively prevents drain pipes from freezing, reduces blockages and cracks, and improves vehicle availability in low-temperature environments.
Smart Images
Figure CN224174768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle under-drainage pipe technology, specifically an antifreeze structure for vehicle under-drainage pipe with integrated flow guiding and heating functions. Background Technology
[0002] Currently, traditional under-vehicle drain pipes have a relatively simple function, only serving to drain water. When the environment is consistently below 0°C, the water in the drain pipe is very prone to freezing, leading to blockage. From a vehicle maintenance perspective, the expansion force generated by freezing can deform and crack the drain pipe. In some extremely low-temperature areas, frequent pipe freezing and repairs not only increase the frequency of vehicle maintenance but also reduce vehicle availability. To address these issues, we need to innovate the technology based on existing under-vehicle drain pipes. Utility Model Content
[0003] The purpose of this invention is to provide an antifreeze structure for under-vehicle drainage pipes with integrated flow guiding and heating functions, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an antifreeze structure for a vehicle under-drainage pipe with integrated flow guiding and heating functions, comprising:
[0005] The drain pipe has a spiral guide vane inside, a water inlet connected to the top of the drain pipe, a drain outlet connected to the bottom of the drain pipe, an electric heating wire wound around the outer wall of the drain pipe, an insulating sleeve wrapped around the outer wall of the electric heating wire, an insulation sleeve provided on the outer side of the insulation sleeve and the drain pipe, and a protective sleeve wrapped around the outer wall of the insulation sleeve.
[0006] Preferably, the water inlet hopper and the water outlet hopper are integrally molded with the drain pipe, and the drain pipe is made of modified polyvinyl chloride.
[0007] Preferably, the top of the spiral guide vane is flush with the top of the drain pipe, and the spiral guide vane is made of polytetrafluoroethylene.
[0008] Preferably, the insulating sleeve is a polyimide film.
[0009] Preferably, the insulation sleeve is made of aerogel felt.
[0010] Preferably, the protective cover is made of polyester fiber.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This invention uses a water inlet hopper to quickly guide water flow into the drain pipe and into contact with the spiral guide vanes. At this point, the water flows downwards at a faster speed under the guidance of the spiral guide vanes, reducing the water's residence time in the pipe and lowering the probability of freezing. Then, the drain pipe is heated by an electric heating wire to further prevent the water in the drain pipe from freezing. In conjunction with an insulation sleeve, the drain pipe under the vehicle is insulated and protected against freezing. The drain hopper increases the size of the drain outlet of the drain pipe, thereby reducing the amount of water adhering to the edge of the pipe opening and causing freezing and blockage. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a vehicle under-drainage pipe antifreeze structure with integrated flow guiding and heating function according to this utility model;
[0014] Figure 2 This is a front sectional view of an antifreeze structure for a vehicle under-drainage pipe with integrated flow guiding and heating functions according to this utility model.
[0015] Figure 3 This utility model Figure 2 Enlarged view of part A.
[0016] In the diagram: 1. Drain pipe; 11. Water inlet hopper; 12. Drain hopper; 13. Protective sleeve; 14. Spiral guide vane; 15. Electric heating wire; 16. Insulating sleeve; 17. Heat insulation sleeve. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figures 1-3An antifreeze structure for a vehicle under-drain pipe with integrated flow guiding and heating functions includes a drain pipe 1. A spiral guide vane 14 is fixedly installed inside the drain pipe 1. A water inlet 11 is connected to the top of the drain pipe 1, and a drain hopper 12 is connected to the bottom of the drain pipe 1. The water inlet 11 quickly guides the water flow into the drain pipe 1. When the water comes into contact with the spiral guide vane 14, the water flows downwards at a relatively high speed under the guidance of the spiral guide vane 14 and is discharged through the drain hopper 12. The spiral guide vane 14 guides the water flow downwards along the pipe wall, increasing the water flow velocity, reducing the water's residence time in the pipe, and lowering the probability of freezing. The drain hopper 12 increases the size of the drain outlet of the drain pipe 1, thereby reducing the amount of water adhering to the edge of the pipe opening and causing freezing and blockage. An electric heating wire 15 is wound around the outer wall of the drain pipe 1. The electric heating wire 15 can be controlled by a temperature sensor and a controller. The electric heating wire 15, the temperature sensor and the controller can be powered by the car's battery. The electric heating wire 15 heats the drain pipe 1 to further prevent the water in the drain pipe 1 from freezing. The outer wall of the electric heating wire 15 is wrapped with an insulating sleeve 16. An insulation sleeve 17 is fixedly installed on the outer side of the insulating sleeve 16 and the drain pipe 1. The outer wall of the insulation sleeve 17 is wrapped with a protective sleeve 13. The insulating sleeve 16 provides insulation protection for the electric heating wire 15. Then, through the cooperation of the insulation sleeve 17 and the electric heating wire 15, the drain pipe under the car is insulated and protected against freezing. The protective sleeve 13 provides waterproof and wear-resistant protection for the drain pipe under the car.
[0019] The water inlet 11 and the drain 12 are integrally molded with the drain pipe 1. The drain pipe 1 is made of modified polyvinyl chloride, which has good stability, impact resistance and flexibility. The top of the spiral guide vane 14 is flush with the top of the drain pipe 1. The spiral guide vane 14 is made of polytetrafluoroethylene, which has good stability, flexibility and wear resistance. The insulating sleeve 16 is made of polyimide film. The heat insulation sleeve 17 is made of aerogel felt, which has the advantages of light weight and low thermal conductivity. The protective sleeve 13 is made of polyester fiber.
[0020] Working principle: Water is quickly guided into the drain pipe 1 through the inlet 11 and comes into contact with the spiral guide vane 14. Under the guidance of the spiral guide vane 14, the water flows downward at a relatively fast speed and is discharged through the drain hopper 12. The spiral guide vane 14 guides the water to flow downward along the pipe wall, which increases the water flow speed, reduces the water residence time in the pipe, and reduces the probability of freezing. The drain hopper 12 increases the size of the drain outlet of the drain pipe 1, thereby reducing the water flow from adhering to the edge of the pipe opening and causing freezing and blockage. The electric heating wire 15 heats the drain pipe 1, thereby further preventing the water in the drain pipe 1 from freezing. The electric heating wire 15 is insulated and protected by the insulating sleeve 16. Then, the heat insulation sleeve 17 and the electric heating wire 15 work together to provide heat insulation and antifreeze protection for the drain pipe under the vehicle. The protective sleeve 13 provides waterproof and wear-resistant protection for the drain pipe under the vehicle.
Claims
1. A vehicle under-drainage pipe antifreeze structure with integrated flow guiding and heating functions, characterized in that, include: A drain pipe (1) is provided with a spiral guide vane (14) inside the drain pipe (1). The top of the drain pipe (1) is connected to a water inlet (11), and the bottom of the drain pipe (1) is connected to a drain hopper (12). An electric heating wire (15) is wound around the outer wall of the drain pipe (1). An insulating sleeve (16) is wrapped around the outer wall of the electric heating wire (15). An insulation sleeve (17) is provided on the outer side of the insulating sleeve (16) and the drain pipe (1). A protective sleeve (13) is wrapped around the outer wall of the insulation sleeve (17).
2. The antifreeze structure for a vehicle under-drainage pipe with integrated flow guiding and heating function according to claim 1, characterized in that: The water inlet hopper (11) and the drain hopper (12) are integrally molded with the drain pipe (1), and the drain pipe (1) is made of modified polyvinyl chloride.
3. The antifreeze structure for a vehicle under-drainage pipe with integrated flow guiding and heating function according to claim 1, characterized in that: The top of the spiral guide vane (14) is flush with the top of the drain pipe (1), and the spiral guide vane (14) is made of polytetrafluoroethylene.
4. The antifreeze structure for a vehicle under-drainage pipe with integrated flow guiding and heating function according to claim 1, characterized in that: The insulating sleeve (16) is a polyimide film.
5. The antifreeze structure for a vehicle under-drainage pipe with integrated flow guiding and heating function according to claim 1, characterized in that: The insulation sleeve (17) is made of aerogel felt.
6. The antifreeze structure for a vehicle under-drainage pipe with integrated flow guiding and heating function according to claim 1, characterized in that: The protective sleeve (13) is made of polyester fiber.