Vehicle door sealing performance detection device
By designing a spray chamber and an L-shaped placement plate driven by a servo motor, combined with spray and wind components, a comprehensive inspection of the door's sealing performance was achieved, solving the problem of inaccurate sealing performance judgment in existing technologies and improving the accuracy of the inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-14
AI Technical Summary
Existing technologies for testing the sealing performance of car doors are not comprehensive enough and cannot simulate rainy conditions, resulting in inaccurate judgments on sealing performance.
A door sealing test device was designed, including a spray chamber, an L-shaped fixed plate, an L-shaped placement plate driven by a servo motor, spray components and wind components. It simulates a rainy environment and achieves all-round testing by alternating spraying with the shower and nozzle components and combining wind to simulate different wind conditions.
It enables comprehensive and accurate testing of car door sealing, and can determine the sealing performance of car doors under simulated rain conditions, thus improving the rigor of the testing.
Smart Images

Figure CN224122102U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automobile manufacturing technology, specifically a door sealing test device. Background Technology
[0002] Door sealing refers to the sealing barrier performance formed when the vehicle body and door are closed. It mainly relies on the synergistic effect of components such as sealing strips and rubber strips to prevent external substances (water, dust, noise) from entering the vehicle and maintain the stability of the interior environment.
[0003] In existing technologies, when testing the sealing performance of car doors, water is usually sprayed onto the car body manually. After the spraying is finished, the car door is opened to observe whether there is moisture or water ingress inside the door, and then the sealing performance of the car door is judged. However, manual spraying is not comprehensive enough and cannot simulate a rainy environment, so the judgment of the sealing performance of the car door is not rigorous enough.
[0004] Therefore, this utility model provides a door sealing performance testing device. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology and solve the problems raised in the background art.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A door sealing test device of this utility model includes a spray chamber; one side of the spray chamber is open, and a first groove is formed at the bottom of the spray chamber; a pair of L-shaped fixing plates are fixedly connected to the bottom of the spray chamber, with the openings of the pair of L-shaped fixing plates facing each other, and the L-shaped fixing plates extend from the opening of the spray chamber; an L-shaped placement plate is provided on the L-shaped fixing plate, and the openings of the pair of L-shaped placement plates face away from each other; a second groove is formed at the bottom of the L-shaped placement plate; the vertical plate of the L-shaped fixing plate slides within the second groove; the L-shaped placement plate moves via a power component; a spray component is provided at the top of the spray chamber; and a wind-powered component is provided on the side wall of the spray chamber.
[0007] Preferably, the power component includes a first servo motor; the first servo motor is fixedly connected to the outer side wall of the spray chamber, the output end of the first servo motor is provided with a first rotating shaft, and the first rotating shaft extends into the spray chamber; a pair of first gears are fixedly connected to the outer side wall of the first rotating shaft; a first rack is fixedly connected to the bottom end of the L-shaped placement plate; the first gear and the first rack mesh with each other.
[0008] Preferably, the spray component includes a rotating cylinder; a set of rotating cylinders is rotatably and sealingly connected to the side wall of the spray chamber, and the other end of the rotating cylinder extends out of the spray chamber; a horizontal pipe is fixedly connected to the outer side wall of the spray chamber by a fixing block, and a water inlet pipe is fixedly connected to the top end of the horizontal pipe; the extended end of the rotating cylinder is rotatably and sealingly connected to the side wall of the horizontal pipe; a set of first through holes and a set of second through holes are provided on the rotating cylinder, and the first through holes and the second through holes are set at right angles; a shower head is installed in the first through hole; a nozzle is installed in the second through hole; the rotating cylinder rotates through a blocking unit.
[0009] Preferably, the blocking unit includes an arc-shaped plate; multiple pairs of symmetrically distributed arc-shaped plates are fixedly connected to the side wall of the spray chamber, and one pair of symmetrically distributed arc-shaped plates is located inside the rotating cylinder, with the outer wall of the arc-shaped plate and the inner wall of the rotating cylinder in contact with each other; a rubber layer is fixedly connected to the outer wall of the arc-shaped plate; a second gear is fixedly connected to the outer wall of the extended end of the rotating cylinder; a second rack is slidably connected to the outer side wall of the spray chamber; the second rack and the second gear mesh with each other; a first hydraulic cylinder is fixedly connected to the outer side wall of the spray chamber, and the output end of the first hydraulic cylinder and the second rack are connected to each other.
[0010] Preferably, the wind-powered component includes a first circular groove; a set of first circular grooves are formed on the side wall of the spray chamber; a set of air inlets are formed at the bottom of the first circular groove; and a fan component is provided inside the first circular groove.
[0011] Preferably, a right-angled wedge is fixed to the end of a pair of L-shaped fixing plates; rollers are provided on the three sides of the vertical plate of the L-shaped fixing plate located in the second groove, and the rollers and the inner wall of the second groove are in contact with each other.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The vehicle door sealing performance testing device of this utility model places the four wheels of the vehicle on a pair of L-shaped placement plates, and then drives the pair of L-shaped placement plates and the vehicle into the spray chamber through a power component. Then, the spray component and the wind component simulate a rainy environment. After the spraying is completed, the vehicle door is opened for testing, which can more accurately determine the sealing performance of the vehicle door.
[0014] 2. The door sealing detection device of this utility model, when spraying is required, uses a shower head to spray water. At this time, the arc plate blocks the second through hole, and water can only flow out through the shower head. Then, when the nozzle needs to spray water, the first hydraulic cylinder drives the first rack to move, which in turn drives the rotating cylinder to rotate, so that the second through hole is located below. The arc plate then blocks the first through hole, thereby completing the exchange operation between the nozzle and the shower head, thus completing different rain spraying situations. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a three-dimensional representation of the present invention. Figure 1 ;
[0017] Figure 2 yes Figure 2 Enlarged view of a portion of point A in the middle;
[0018] Figure 3 This is a three-dimensional representation of the present invention. Figure 2 ;
[0019] Figure 4 It is a 3D view of the fan components;
[0020] Figure 5 This is a 3D view of the L-shaped fixing plate;
[0021] Figure 6 It is a 3D view of the spray system;
[0022] Figure 7 It is a partial 3D view of the rotating cylinder;
[0023] In the diagram: 1. Spray chamber; 11. First groove; 12. L-shaped placement plate; 13. Second groove; 14. L-shaped fixing plate; 2. First servo motor; 21. First rotating shaft; 22. First gear; 23. First rack; 3. Horizontal pipe; 31. Water inlet pipe; 32. Rotating cylinder; 33. Fixing block; 34. First through hole; 35. Second through hole; 36. Shower head component; 37. Nozzle component; 4. Arc plate; 41. Second gear; 42. Second rack; 43. First hydraulic cylinder; 5. First circular groove; 51. Air inlet; 52. Fan component; 6. Right-angled inclined block; 7. Roller. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figures 1 to 7As shown, the present invention discloses a vehicle door sealing performance testing device, comprising a spray chamber 1; one side of the spray chamber 1 is open, and a first groove 11 is formed at the bottom end of the spray chamber 1; a pair of L-shaped fixing plates 14 are fixedly connected to the bottom end of the spray chamber 1, with the openings of the pair of L-shaped fixing plates 14 facing each other, and the L-shaped fixing plates 14 protruding from the opening of the spray chamber; an L-shaped placement plate 12 is provided on the L-shaped fixing plate 14, and the openings of the pair of L-shaped placement plates 12 face away from each other; a second groove 13 is formed at the bottom end of the L-shaped placement plate 12; the vertical plate of the L-shaped fixing plate 14 slides within the second groove 13; the L-shaped placement plate 12 is moved by a power component; a spray component is provided at the top of the spray chamber 1; a wind-powered component is provided on the side wall of the spray chamber 1; in the prior art, when testing the sealing performance of a vehicle door, only manual labor is generally used. Water is sprayed onto the vehicle body. After the spraying ends, the car door is opened to observe whether there is moisture or water ingress inside the door, thereby judging the door's sealing performance. However, since manual spraying is not comprehensive enough and cannot simulate a rainy environment, the judgment of the door's sealing performance is not rigorous enough. Therefore, in this invention, the four wheels of the vehicle are placed on a pair of L-shaped placement plates 12 during operation. Then, the pair of L-shaped placement plates 12 and the vehicle are driven into the spray chamber 1 by a power component. Then, the spraying component and the wind component simulate a rainy environment. After the spraying ends, the car door is opened for testing, which can more accurately judge the sealing performance of the car door. The water accumulated in the first groove 11 can be pumped out by a water pump. The existing technology will not be described in detail. At the same time, the opening of the spray chamber 1 can be equipped with a roller shutter door to prevent water leakage during rain. The roller shutter door is also existing technology and will not be described in detail.
[0026] The power component includes a first servo motor 2; the first servo motor 2 is fixedly connected to the outer wall of the spray chamber 1, and the output end of the first servo motor 2 is provided with a first rotating shaft 21, which extends into the spray chamber 1; a pair of first gears 22 are fixedly connected to the outer wall of the first rotating shaft 21; a first rack 23 is fixedly connected to the bottom end of the L-shaped placement plate 12; the first gear 22 and the first rack 23 mesh with each other; during operation, the servo motor drives the first rotating shaft 21 to rotate, and then through the meshing of the first gear 22 and the first rack 23, the movement of the first rack 23 drives the movement of the L-shaped placement plate 12, thereby completing the removal and entry of the vehicle.
[0027] The spray system includes a rotating cylinder 32; a set of rotating cylinders 32 are rotatably and sealingly connected to the side wall of the spray chamber 1, and the other end of the rotating cylinder 32 extends out of the spray chamber 1; a horizontal pipe 3 is fixedly connected to the outer side wall of the spray chamber 1 by a fixing block 33, and a water inlet pipe 31 is fixedly connected to the top end of the horizontal pipe 3; the extended end of the rotating cylinder 32 is rotatably and sealingly connected to the side wall of the horizontal pipe 3; a set of first through holes 34 and a set of second through holes 35 are provided on the rotating cylinder 32, and the first through holes 34 and the second through holes 35 are set at right angles; a shower head 36 is installed in the first through hole 34; a nozzle 37 is installed in the second through hole 35; the rotating cylinder 32 rotates through a blocking unit;
[0028] The blocking unit includes an arc-shaped plate 4; multiple pairs of symmetrically distributed arc-shaped plates 4 are fixedly attached to the side wall of the spray chamber 1, and one pair of symmetrically distributed arc-shaped plates 4 is located inside the rotating cylinder 32, with the outer side wall of the arc-shaped plate 4 and the inner wall of the rotating cylinder 32 in contact with each other; a rubber layer is fixedly attached to the outer side wall of the arc-shaped plate 4; a second gear 41 is fixedly attached to the outer side wall of the extended end of the rotating cylinder 32; a second rack 42 is slidably connected to the outer side wall of the spray chamber 1; the second rack 42 and the second gear 41 mesh with each other; a first hydraulic cylinder 43 is fixedly attached to the outer side wall of the spray chamber 1, and the output end of the first hydraulic cylinder 43 is connected to the second rack 42.
[0029] During operation, when spraying is required, the shower head 36 is used for rain spraying. At this time, the arc plate 4 blocks the second through hole 35, and water can only flow out through the shower head 36. Then, when the nozzle 37 is required for rain spraying, the first hydraulic cylinder 43 drives the first rack 23 to move, which in turn drives the rotating cylinder 32 to rotate, so that the second through hole 35 is located below. The arc plate 4 then blocks the first through hole 34, thus completing the exchange operation between the nozzle 37 and the shower head 36, thereby completing different rain spraying situations.
[0030] The wind-powered component includes a first circular groove 5; a set of first circular grooves 5 are provided on the side wall of the spray chamber 1; a set of air inlets 51 are provided at the bottom of the first circular groove 5; a fan component 52 is provided in the first circular groove 5; during operation, the fan component 52 in different first circular grooves 5 can be turned on to blow air, and the rotation efficiency of the fan component 52 can be adjusted to simulate different wind speeds and wind conditions at different locations.
[0031] A right-angled wedge 6 is fixed to the end of a pair of L-shaped fixing plates 14; rollers 7 are provided on the three sides of the vertical plate of the L-shaped fixing plate 14 located in the second groove 13, and the rollers 7 and the inner wall of the second groove 13 are in contact with each other; during operation, a set of rollers 7 are provided on the three sides of the vertical plate of the L-shaped fixing plate 14, so that the rollers 7 and the inner wall of the second groove 13 can be in contact with each other, which can reduce the moving friction of the L-shaped placement plate 12.
[0032] Working principle: The four wheels of the vehicle are placed on a pair of L-shaped placement plates 12. Then, a power component drives the pair of L-shaped placement plates 12 and the vehicle into the spray chamber 1. The spray and wind components simulate a rainy environment. After spraying, the car door is opened for testing, which can more accurately determine the door's sealing performance. The water accumulated in the first groove 11 can be pumped out by a water pump (this is not described in detail in the existing technology). The opening of the spray chamber 1 can be equipped with a roller shutter door to prevent water leakage during rain (this is also existing technology and will not be described in detail). The servo motor drives the first rotating shaft 21 to rotate, which in turn drives the L-shaped placement plates 12 through the meshing of the first gear 22 and the first rack 23. The movement of the nozzles completes the movement of the vehicle in and out. When a spraying operation is required, the shower head 36 is used to spray water. At this time, the arc plate 4 blocks the second through hole 35, and water can only flow out through the shower head 36. When the nozzle 37 is required to spray water, the first hydraulic cylinder 43 drives the first rack 23 to move, which in turn drives the rotating cylinder 32 to rotate, so that the second through hole 35 is located below. The arc plate 4 blocks the first through hole 34, thereby completing the exchange operation of the nozzle 37 and the shower head 36, thus completing different rain spraying situations. The fan 52 in different first circular grooves 5 can be opened to blow air, and the rotation efficiency of the fan 52 can be adjusted to simulate different wind speeds and wind conditions at different locations.
[0033] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A door sealing performance testing device, characterized in that, The system includes a spray chamber; one side of the spray chamber is open, and a first groove is formed at the bottom of the spray chamber; a pair of L-shaped fixing plates are fixedly connected to the bottom of the spray chamber, with the openings of the pair of L-shaped fixing plates facing each other, and the L-shaped fixing plates extend from the opening of the spray chamber; an L-shaped placement plate is provided on the L-shaped fixing plate, and the openings of the pair of L-shaped placement plates face away from each other; a second groove is formed at the bottom of the L-shaped placement plate; the vertical plate of the L-shaped fixing plate slides in the second groove; the L-shaped placement plate is moved by a power component; a spray component is provided at the top of the spray chamber; and a wind-powered component is provided on the side wall of the spray chamber.
2. The door sealing performance testing device according to claim 1, characterized in that, The power component includes a first servo motor; the first servo motor is fixedly connected to the outer side wall of the spray chamber, the output end of the first servo motor is provided with a first rotating shaft, and the first rotating shaft extends into the spray chamber; a pair of first gears are fixedly connected to the outer side wall of the first rotating shaft; a first rack is fixedly connected to the bottom end of the L-shaped placement plate; the first gear and the first rack mesh with each other.
3. The door sealing performance testing device according to claim 2, characterized in that, The spray system includes a rotating cylinder; a set of rotating cylinders is rotatably and sealingly connected to the side wall of the spray chamber, and the other end of the rotating cylinder extends out of the spray chamber; a horizontal pipe is fixedly connected to the outer side wall of the spray chamber by a fixing block, and a water inlet pipe is fixedly connected to the top end of the horizontal pipe; the extended end of the rotating cylinder is rotatably and sealingly connected to the side wall of the horizontal pipe; a set of first through holes and a set of second through holes are provided on the rotating cylinder, and the first through holes and the second through holes are set at right angles; a shower head is installed in the first through hole; a nozzle is installed in the second through hole; the rotating cylinder rotates through a blocking unit.
4. The door sealing performance testing device according to claim 3, characterized in that, The blocking unit includes an arc-shaped plate; multiple pairs of symmetrically distributed arc-shaped plates are fixedly attached to the side wall of the spray chamber, and one pair of symmetrically distributed arc-shaped plates is located inside the rotating cylinder, with the outer wall of the arc-shaped plate and the inner wall of the rotating cylinder in contact with each other; a rubber layer is fixedly attached to the outer wall of the arc-shaped plate; a second gear is fixedly attached to the outer wall of the extended end of the rotating cylinder; a second rack is slidably connected to the outer side wall of the spray chamber; the second rack and the second gear mesh with each other; a first hydraulic cylinder is fixedly attached to the outer side wall of the spray chamber, and the output end of the first hydraulic cylinder and the second rack are connected to each other.
5. The door sealing performance testing device according to claim 4, characterized in that, The wind-powered component includes a first circular groove; a set of first circular grooves are provided on the side wall of the spray chamber; a set of air inlets are provided at the bottom of the first circular groove; and a fan component is provided inside the first circular groove.
6. The door sealing performance testing device according to claim 5, characterized in that, A pair of L-shaped fixing plates are fixed to the ends with right-angled wedges; the vertical plate of the L-shaped fixing plate is provided with rollers on three sides of the second groove, and the rollers and the inner wall of the second groove are in contact with each other.