Inflatable sealing strip for automobile sliding door

Abstract

The utility model relates to an inflatable sealing strip for an automobile sliding door, which comprises a sealing strip body, the sealing strip body is annularly mounted on the automobile sliding door, the sealing strip body is provided with a bubble-shaped cavity, the bubble-shaped cavity is peak-shaped, a first peak bulge is arranged in the middle of the top surface of the bubble-shaped cavity, and a second peak bulge is arranged in the middle of the top surface of the bubble-shaped cavity. Second peak protrusions are symmetrically arranged on the two sides of the first peak protrusion, the joints of the first peak protrusion and the second peak protrusions are in arc transition, and the first peak protrusion is higher than the second peak protrusions. According to the utility model, the bubble shape is simple, the peak-shaped bubble-shaped cavity integrates an extrusion function and an inflation function, the cost can be reduced, the manufacturing is simple, the installation form of adhesive tapes or clasp nails is adopted, the requirement on the vehicle door installation environment is low, and the installation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile sealing, and particularly relates to an inflatable sealing strip for an automobile sliding door. Background Art

[0002] The sealing system of an automobile sliding door is composed of an automobile sliding door frame, an automobile sliding door, an automobile sliding door sealing strip, etc., and plays the roles of waterproofing, dustproofing, heat preservation and safety. Since the automobile sliding door needs to withstand frequent opening and closing operations by users and needs to ensure safety and firmness, the sealing effect is very important.

[0003] After the existing structure of the automobile sliding door sealing strip is installed, by increasing the interference amount, the reaction force of the sealing strip is increased to improve the sealing effect. This will result in a relatively large closing force required for the automobile sliding door, and problems such as the automobile sliding door not closing in place will occur. At the same time, the wear of the sealing strip will also be aggravated; when the automobile is driving at high speed, the airflow generates a large pressure on the surface of the automobile sliding door, causing poor deformation of the sealing strip, resulting in the inability to fully guarantee the function of the sealing system, and the noise of the external operating components and wind noise will also be serious.

[0004] In view of the above defects, an air inflation valve is used in the market to cooperate with the sealing strip for air inflation and deflation to ensure good deformation of the sealing strip. For example, an inflatable sealing structure for an aircraft door with the patent number 2023222638122. However, the sealing strip is provided with independent bubble-shaped extrusion cavities and inflation cavities. The bubble-shaped extrusion cavities are used for compression, and the inflation cavities are used for inflation. The cross-sectional area of the sealing strip is large, the cost is high, and the manufacturing difficulty is great. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above deficiencies and provide an inflatable sealing strip for an automobile sliding door. The bubble shape of the sealing strip is simple. A bubble-shaped cavity in the shape of a mountain peak integrates the extrusion function and the inflation function, which can reduce costs, is simple to manufacture, and adopts an installation form of tape or buckle, with low requirements for the door installation environment and more convenient installation.

[0006] The purpose of the utility model is achieved as follows:

[0007] An inflatable sealing strip for an automobile sliding door includes a sealing strip body. The sealing strip body is annularly installed on the automobile sliding door. The sealing strip body is provided with a bubble-shaped cavity. The bubble-shaped cavity is in the shape of a mountain peak. A first mountain peak protrusion is provided in the middle of the top surface of the bubble-shaped cavity. Second mountain peak protrusions are symmetrically provided on both sides of the first mountain peak protrusion. The connection between the first mountain peak protrusion and the second mountain peak protrusion adopts an arc transition. The first mountain peak protrusion is higher than the second mountain peak protrusion.

[0008] Preferably, one side of the top surface of the bubble-shaped cavity is provided with an opening, and the opening is connected to an air inflation and deflation control system through an air pipe.

[0009] Preferably, the bottom surface of the bubble-shaped cavity is fixed to the sliding door of the vehicle by tape or fastening nails.

[0010] Preferably, an inflation valve is provided on the air pipe, and the inflation valve is equipped with a pneumatic controller.

[0011] Preferably, the bubble-shaped cavity is equipped with a pneumatic detector.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The shape of the sealing strip bubble is simple. The bubble-shaped cavity is in the shape of a mountain peak, and the first mountain peak bulge in the middle is higher than the second mountain peak bulges on both sides. When the door is opened, there is interference and friction between the sliding door frame of the vehicle and the sealing strip. The inflation and deflation control system reduces the pressure, and only the first mountain peak bulge fits with the sliding door frame of the vehicle, reducing the amount of interference and reducing the wear of the sealing strip.

[0014] When the door is closed and the vehicle is driving at a low speed, the first mountain peak bulge in the middle and the second mountain peak bulges on both sides are all in contact with the sliding door frame of the vehicle, forming three seals from the inside to the outside to ensure good sealing.

[0015] When the door is closed and the vehicle is driving at a high speed, the inflation and deflation control system pressurizes, and the sealing strip is deformed as a whole under the internal pressure, bulging on both sides, becoming more round and smooth, and fitting more closely with the sliding door frame of the vehicle. At the same time, it can reduce the noise of the external rotating parts and wind noise during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of an inflatable sealing strip for a sliding door of a vehicle of the present utility model without holes (with tape).

[0017] Figure 2 It is a cross-sectional view of an inflatable sealing strip for a sliding door of a vehicle of the present utility model with holes (with tape).

[0018] Figure 3 It is a cross-sectional view of an inflatable sealing strip for a sliding door of a vehicle of the present utility model without holes (with fastening nails).

[0019] Figure 4 It is a schematic diagram of the inflation and deflation principle of the sealing strip (with an internal pneumatic detector).

[0020] Figure 5 It is a schematic diagram of the inflation and deflation principle of the sealing strip (with an external pneumatic detector).

[0021] Figure 6 It is a schematic diagram of the deformation of the sealing strip (when the door is open).

[0022] Figure 7 It is a schematic diagram of the deformation of the sealing strip (when the door is closed and the vehicle is driving at a low speed).

[0023] Figure 8 Schematic diagram of the deformation of the sealing strip (when the car door is closed, the sealing strip is pressurized, and the car is running at high speed).

[0024] Wherein:

[0025] Sealing strip body 1; bubble-shaped cavity 1.1; first mountain peak protrusion 1.2; second mountain peak protrusion 1.3; opening 1.4; air pipe 2; air charging and discharging control system 3; air charging valve 4; air pressure controller 5; tape 6; fastening nail 7; air pressure detector 8. Specific implementation method

[0026] Refer to Figure 1-8 , the utility model relates to an inflatable sealing strip for an automobile sliding door, which comprises a sealing strip body 1. The sealing strip body 1 is integrally extruded and formed by EPDM dense rubber. The sealing strip body 1 is annularly installed on the automobile sliding door. The sealing strip body 1 is provided with a bubble-shaped cavity 1.1. The bubble-shaped cavity 1.1 is in the shape of a mountain peak. A first mountain peak protrusion 1.2 is arranged in the middle of the top surface of the bubble-shaped cavity 1.1. Second mountain peak protrusions 1.3 are symmetrically arranged on both sides of the first mountain peak protrusion 1.2. The connection between the first mountain peak protrusion 1.2 and the second mountain peak protrusion 1.3 adopts an arc transition. The first mountain peak protrusion 1.2 is higher than the second mountain peak protrusion 1.3. One side of the top surface of the bubble-shaped cavity 1.1 is provided with an opening 1.4. The opening is connected to an air charging and discharging control system 3 through an air pipe 2. An air charging valve 4 is arranged on the air pipe 2. The air charging valve 4 is equipped with an air pressure controller 5. When the car door is closed, the mountain peak protrusions on the top surface of the bubble-shaped cavity 1.1 are in contact with the automobile sliding door frame. The bubble-shaped cavity 1.1 integrates extrusion and air charging, can reduce costs and is simple to manufacture.

[0027] The bottom surface of the bubble-shaped cavity 1.1 is fixed on the automobile sliding door through a tape 6 or a fastening nail 7, with low requirements for the door installation environment and convenient installation. When using the tape 6, the tape 6 is pasted on the bottom surface of the bubble-shaped cavity 1.1, and the tape 6 is directly pasted on the automobile sliding door; when using the fastening nail 7, a kidney-shaped hole corresponding to the fastening nail 7 is provided on the automobile sliding door, and the fastening nail 7 is buckled into the kidney-shaped hole to realize the fixation of the sealing strip and the automobile sliding door.

[0028] The bubble-shaped cavity 1.1 is equipped with an air pressure detector 8. The air pressure detector 8 detects the air pressure in the bubble-shaped cavity 1.1. When the air pressure detector 8 is an in-built type, the air pressure detector 8 is built in the bubble-shaped cavity 1.1. The air pressure detector 8 is radio-connected to the air charging and discharging control system 3, and the air charging and discharging control system 3 is electrically connected to the air pressure controller 5; when the air pressure detector 8 is an external type, the air pressure detector 8 is communicated with the bubble-shaped cavity 1.1. The air pressure detector 8 is electrically connected to the air charging and discharging control system 3, and the air charging and discharging control system 3 is electrically connected to the air pressure controller 5.

[0029] Working principle:

[0030] When the car door is opened, there is interference and friction between the sliding door frame of the car and the sealing strip. The air charging and discharging control system 3 transmits a signal to the pneumatic controller 5 to control the air charging valve 4 to discharge air outward from the bubble-shaped cavity 1.1. The air charging and discharging control system reduces the pressure. Only the first mountain-shaped protrusion fits with the sliding door frame of the car, reducing the interference amount and the wear of the sealing strip.

[0031] When the car door is closed and the vehicle is driving at a low speed, the first mountain-shaped protrusion in the middle and the second mountain-shaped protrusions on both sides are all in contact with the sliding door frame of the car, forming three seals from the inside to the outside to ensure good sealing.

[0032] When the car door is closed and the vehicle is driving at a high speed, the air charging and discharging control system pressurizes. The sealing strip is deformed as a whole under the internal pressure, expands on both sides, becomes more round and smooth, and fits better with the sliding door frame of the car. At the same time, it can reduce the noise of the external rotating parts and wind noise during driving.

[0033] In addition to the above embodiments, the present utility model also includes other implementation manners. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present utility model.

Claims

1. An inflatable sealing strip for a vehicle sliding door, comprising a sealing strip body, the sealing strip body is annularly installed on the vehicle sliding door, and is characterized in that: The sealing strip body is provided with a bubble-shaped cavity, the bubble-shaped cavity is in the shape of a mountain peak, a first mountain peak protrusion is provided in the middle of the top surface of the bubble-shaped cavity, and second mountain peak protrusions are symmetrically provided on both sides of the first mountain peak protrusion. The connection between the first mountain peak protrusion and the second mountain peak protrusion is in an arc transition, and the first mountain peak protrusion is higher than the second mountain peak protrusion.

2. The inflatable sealing strip for a sliding door of an automobile according to claim 1, wherein: One side of the top surface of the bubble-shaped cavity is provided with an opening, and the opening is connected to an air charging and discharging control system through an air pipe.

3. The inflatable sealing strip for a sliding door of an automobile according to claim 1, wherein: The bottom surface of the bubble-shaped cavity is fixed on the automotive sliding door through a tape or a buckle.

4. The inflatable sealing strip for a sliding door of an automobile according to claim 2, wherein: An air inflation valve is provided on the air pipe, and the air inflation valve is equipped with a pneumatic controller.

5. An inflatable sealing strip for a sliding door of an automobile according to claim 1 or 2 or 4, characterized in that: The bubble-shaped cavity is equipped with a pneumatic detector.

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