Automobile tail door sealing structure
By designing a multi-layer sealing strip and a motor-driven scraper system on the car tailgate, the sealing problem in the gap between the tailgate and the tailgate frame is solved, achieving all-round sealing and dust removal, and improving the sealing effect and stability.
Patent Information
- Application Number
- CN202423064721.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-12-12
AI Technical Summary
When the existing automobile tailgate sealing structure is in use, rainwater from the outside can easily enter the vehicle through the gaps around the tailgate and the tailgate frame, resulting in poor waterproof sealing effect.
A car tailgate sealing structure was designed, including a tailgate frame, a movable door panel, a connecting hinge, an inner baffle, a sealing strip, and a motor-driven scraper system. Through the cooperation of multiple layers of sealing strips and scrapers, all-round sealing is achieved, and the motor-driven scraper removes dust and impurities to ensure the sealing effect.
It achieves all-round sealing of the car's tailgate, preventing impurities such as rain and dust from entering the car, and improves the sealing effect and connection stability.
Smart Images

Figure CN223384295U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile tailgates, in particular to a sealing structure of an automobile tailgate. Background Art
[0002] The tailgate seal is a key component in vehicle rear design, ensuring a safe and comfortable interior environment by providing waterproofing, dustproofing, sound insulation, and vibration reduction. The structure consists of a sealing strip, mounting grooves, a tailgate frame, a body-contact surface, and related accessories.
[0003] Patent announcement number CN214822549U discloses a sealing structure for a car tailgate with a rain shower fixture simulating rainy road conditions. The sealing structure not only achieves efficient sealing of the car tailgate with a rain shower fixture simulating rainy road conditions, facilitates the later inspection and maintenance of the sealing structure, but also extends the service life of the sealing structure. However, when the existing car tailgate sealing structure is in use, rainwater from the outside can easily enter the car through the gaps around the tailgate and the tailgate frame, and the waterproof sealing effect is still poor. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a sealing structure for a car tailgate. When the existing sealing structure for a car tailgate is in use, rainwater from the outside easily enters the car through the gaps around the tailgate and the tailgate frame, and the waterproof sealing effect is still poor.
[0005] In order to solve the above technical problems, the technical solution of the present utility model is a car tailgate sealing structure, comprising a tailgate frame, and a movable door panel located inside the tailgate frame, wherein two sets of connecting hinges are connected between the movable door panel and the tailgate frame, and first inner baffles are fixedly connected to both inner side walls of the tailgate frame, and first sealing strips are fixedly connected to both sets of the first inner baffles;
[0006] A second inner baffle is fixedly connected to the inner bottom of the tailgate frame, and a second sealing strip is fixedly connected to the second inner baffle;
[0007] The outer top of the tailgate frame is fixedly connected with a top baffle, both ends of the top baffle are fixedly connected with side baffles, and both sets of side baffles are connected to the tailgate frame. A glass plate is fixedly embedded near the top of the outer side of the movable door panel.
[0008] As a further solution of the present invention: first sealing grooves are provided on the inner side of the movable door panel near the edges on both sides, and two groups of first sealing strips are respectively located on the inner sides of the two groups of first sealing grooves.
[0009] As a further solution of the present invention: a second sealing groove is provided on the inner side surface of the movable door panel near the bottom, and the second sealing bar is located on the inner side of the second sealing groove.
[0010] As a further solution of the present invention: a groove is provided on the outer side surface of the tailgate frame near the middle position of the bottom, a dual-axis motor is fixedly installed on the inner side of the groove, both output ends of the dual-axis motor are fixedly connected to a horizontal screw shaft, and the outer sides of the two groups of the horizontal screw shafts are sleeved with moving blocks, and the outer sides of the two groups of the moving blocks are fixedly connected to an outer scraper.
[0011] As a further solution of the present invention: the external threads of the two groups of horizontal screw shafts are symmetrically arranged, threaded holes are opened through the two groups of moving blocks, and the two groups of moving blocks are threadedly connected to the two groups of horizontal screw shafts through the threaded holes respectively, and the two groups of external scrapers are symmetrically arranged about the groove.
[0012] As a further solution of the present invention: two groups of limiting slide grooves are opened on the outer side of the tailgate frame near the bottom, and the two groups of moving blocks are respectively located on the inner sides of the two groups of limiting slide grooves, and the two groups of limiting slide grooves are symmetrically arranged about the groove.
[0013] Compared with the prior art, the beneficial effects of the present invention include: when the movable door panel is rotated to the inside of the tailgate frame through two sets of connecting hinges, the movable door panel is respectively fitted with the two sets of first inner baffles and the second inner baffles, and the two sets of first sealing strips are respectively located inside the two sets of first sealing grooves to prevent rainwater from entering the car from the gaps on both sides of the tailgate. At the same time, the second sealing strip is located inside the second sealing groove to prevent rainwater from entering the car from the gap at the bottom of the tailgate. In addition, the top baffle and the two sets of side baffles cooperate to prevent rainwater from entering the car from the gap at the top of the tailgate, thereby realizing an all-round sealing function for the car tailgate and having a good waterproof sealing effect.
[0014] Compared with the prior art, the beneficial effects of the present invention include: by starting the dual-axis motor on the inside of the groove to drive the two sets of horizontal screw shafts to rotate together, thereby driving the two sets of moving blocks to move relative to each other along the two sets of limiting slide grooves under the cooperation of the symmetrical external threads and threaded holes, and then driving the two sets of external scrapers to move relative to each other until the external scrapers scrape off the dust and other impurities on the car tailgate, which can prevent dust and other impurities on the outer surface of the car tailgate from entering the connection gap, thereby ensuring the connection stability between the movable door panel and the tailgate frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a car tailgate sealing structure in an embodiment of the present utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the tailgate frame in an embodiment of the present utility model;
[0017] Figure 3 This is a schematic diagram of the connection structure between the movable door panel and the tailgate frame in an embodiment of the present utility model;
[0018] Figure 4 This is a front view of a car tailgate sealing structure in an embodiment of the present utility model.
[0019] In the figure: 1. Tailgate frame; 2. Movable door panel; 3. Connecting hinge; 4. Glass panel; 5. Top baffle; 6. Side baffle; 7. First inner baffle; 8. First sealing strip; 9. First sealing groove; 10. Second inner baffle; 11. Second sealing strip; 12. Second sealing groove; 13. Groove; 14. Dual-axis motor; 15. Horizontal screw shaft; 16. Moving block; 17. Threaded hole; 18. Outer scraper; 19. Limiting slide. DETAILED DESCRIPTION
[0020] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.
[0021] Example 1, please refer to Figure 1-Figure 4 A car tailgate sealing structure includes a tailgate frame 1, and a movable door panel 2 located on the inner side of the tailgate frame 1. Two sets of connecting hinges 3 are connected between the movable door panel 2 and the tailgate frame 1. The two inner side walls of the tailgate frame 1 are fixedly connected to a first inner baffle 7, and the two sets of first inner baffles 7 are fixedly connected to a first sealing strip rod 8. The inner bottom of the tailgate frame 1 is fixedly connected to a second inner baffle 10, and the second inner baffle 10 is fixedly connected to a second sealing strip rod 11. The outer top of the tailgate frame 1 is fixedly connected to a top baffle 5, and both ends of the top baffle 5 are fixedly connected to side baffles 6, and the two sets of side baffles 6 are connected to the tailgate frame 1. A glass plate 4 is embedded near the top of the outer side of the movable door panel 2.
[0022] First sealing grooves 9 are formed on the inner side of the movable door panel 2 near both side edges, and two groups of first sealing bars 8 are located on the inner sides of the two groups of first sealing grooves 9 respectively.
[0023] In this embodiment, the tailgate of the automobile is preliminarily sealed by cooperating with the two groups of first sealing bars 8 and the two groups of first sealing grooves 9 .
[0024] A second sealing groove 12 is formed on the inner side of the movable door panel 2 near the bottom, and the second sealing bar 11 is located inside the second sealing groove 12 .
[0025] In this embodiment, the second sealing strip 11 and the second sealing groove 12 cooperate to further seal the tailgate of the automobile.
[0026] Specifically, when the movable door panel 2 is rotated to the inside of the tailgate frame 1 through two sets of connecting hinges 3, the movable door panel 2 is respectively fitted with the two sets of first inner baffles 7 and the second inner baffles 10, and the two sets of first sealing strips 8 are respectively located inside the two sets of first sealing grooves 9 to prevent rainwater from entering the car from the gaps on both sides of the tailgate. At the same time, the second sealing strip 11 is located inside the second sealing groove 12 to prevent rainwater from entering the car from the gap at the bottom of the tailgate. In addition, the top baffle 5 and the two sets of side baffles 6 cooperate to prevent rainwater from entering the car from the gap at the top of the tailgate, thereby realizing an all-round sealing function for the car tailgate, and having a good waterproof sealing effect.
[0027] Example 2, please refer to Figure 1-Figure 4 A car tailgate sealing structure, a groove 13 is opened on the outer side of the tailgate frame 1 near the middle of the bottom, a dual-axis motor 14 is fixedly installed on the inner side of the groove 13, and the two output ends of the dual-axis motor 14 are fixedly connected to the horizontal screw shaft 15, and the outer sides of the two sets of horizontal screw shafts 15 are respectively sleeved with moving blocks 16, and the outer sides of the two sets of moving blocks 16 are respectively fixedly connected to the outer scrapers 18.
[0028] The external threads of the two sets of horizontal screw shafts 15 are symmetrically arranged, and threaded holes 17 are opened through the two sets of moving blocks 16, and the two sets of moving blocks 16 are respectively threadedly connected to the two sets of horizontal screw shafts 15 through the threaded holes 17. The two sets of outer scrapers 18 are symmetrically arranged about the groove 13. Two sets of limiting slide grooves 19 are opened on the outer side of the tailgate frame 1 near the bottom, and the two sets of moving blocks 16 are respectively located on the inner sides of the two sets of limiting slide grooves 19. The two sets of limiting slide grooves 19 are symmetrically arranged about the groove 13.
[0029] In this embodiment, the two sets of outer scrapers 18 are relatively moved by the threaded connection between the horizontal screw shaft 15 and the moving block 16 .
[0030] Specifically, by starting the dual-axis motor 14 inside the groove 13, the two sets of horizontal screw shafts 15 are driven to rotate together, thereby driving the two sets of moving blocks 16 to move relative to each other along the two sets of limiting slide grooves 19 with the cooperation of the symmetrical external threads and threaded holes 17, and then driving the two sets of external scrapers 18 to move relative to each other until the external scrapers 18 scrape off the dust and other impurities on the car tailgate, which can prevent dust and other impurities on the outer surface of the car tailgate from entering the connection gap, thereby ensuring the connection stability of the movable door panel 2 and the tailgate frame 1.
[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.
Claims
1. A car tailgate sealing structure, comprising a tailgate frame (1), characterized in that: It also includes a movable door panel (2) located inside the tailgate frame (1), two sets of connecting hinges (3) are connected between the movable door panel (2) and the tailgate frame (1), both inner side walls of the tailgate frame (1) are fixedly connected to first inner baffles (7), and both sets of the first inner baffles (7) are fixedly connected to first sealing strips (8); A second inner baffle (10) is fixedly connected to the inner bottom of the tailgate frame (1), and a second sealing strip (11) is fixedly connected to the second inner baffle (10); A top baffle (5) is fixedly connected to the top of the outer side of the tailgate frame (1), and both ends of the top baffle (5) are fixedly connected to side baffles (6), and both sets of side baffles (6) are connected to the tailgate frame (1). A glass plate (4) is fixedly embedded near the top of the outer side of the movable door panel (2).
2. The automobile tailgate sealing structure according to claim 1, characterized in that: The inner side surface of the movable door panel (2) is provided with first sealing grooves (9) near both side edges, and two groups of first sealing rods (8) are respectively located on the inner sides of the two groups of first sealing grooves (9).
3. The automobile tailgate sealing structure according to claim 1, characterized in that: A second sealing groove (12) is provided on the inner side surface of the movable door panel (2) near the bottom, and the second sealing rod (11) is located on the inner side of the second sealing groove (12).
4. The automobile tailgate sealing structure according to claim 1, characterized in that: A groove (13) is provided on the outer side surface of the tailgate frame (1) near the middle of the bottom, a double-axis motor (14) is fixedly mounted on the inner side of the groove (13), both output ends of the double-axis motor (14) are fixedly connected to a horizontal screw shaft (15), and the outer sides of the two groups of the horizontal screw shafts (15) are sleeved with moving blocks (16), and the outer sides of the two groups of the moving blocks (16) are fixedly connected to an outer scraper (18).
5. The automobile tailgate sealing structure according to claim 4, characterized in that: The external threads of the two groups of horizontal screw shafts (15) are symmetrically arranged, and threaded holes (17) are opened through the two groups of moving blocks (16). The two groups of moving blocks (16) are respectively threadedly connected to the two groups of horizontal screw shafts (15) through the threaded holes (17). The two groups of external scrapers (18) are symmetrically arranged about the groove (13).
6. The automobile tailgate sealing structure according to claim 5, characterized in that: Two groups of limiting slide grooves (19) are provided on the outer side surface of the tailgate frame (1) near the bottom, and the two groups of moving blocks (16) are respectively located on the inner sides of the two groups of limiting slide grooves (19), and the two groups of limiting slide grooves (19) are symmetrically arranged with respect to the groove (13).
Citation Information
Patent Citations
Sealing structure for simulating raining road condition of automobile tail door through raining tool
CN214822549U