Leakage-proof device for sunroof of dining car
By simplifying the sealing strip structure and adding sealing strips, baffles, and drainage design, the problems of complexity and high cost of existing sunroof sealing have been solved, achieving better sealing effect and lower production and use costs.
Patent Information
- Application Number
- CN202520366297.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-04
AI Technical Summary
In existing waterproof and retractable panoramic sunroofs, the sealing strips and sealing grooves have relatively complex structures, poor versatility, and high production and usage costs.
It adopts a horizontally placed long strip sealing strip with an arc-shaped protrusion and an arc-shaped groove inside. When the window and frame are closed, the sealing length is widened by compression, and water is discharged through the water collection tank and drainage channel. The outer side is equipped with sealing cotton strips and water baffles to improve the sealing performance.
The sealing structure has been simplified, improving sealing performance and versatility, and reducing production and usage costs.
Smart Images

Figure CN223735832U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sash accessory technical field especially dining car skylight leak protection device. BACKGROUND
[0002] The basic function of the roof window is ventilation and expanding the field of vision, the skylight can effectively make the air in the car circulate, increase the fresh air in the car, satisfy the ventilation demand of the car owner, the roof window can introduce more natural light, make the car more bright, improve the riding experience increase illumination, broaden the field of vision, but with long time use, the skylight often appears the phenomenon of water leakage, influence use, the Chinese utility model patent with the authorization announcement number CN221292925U discloses a kind of rain leakage prevention open-close type panoramic skylight, by setting up multiple layers of sealing strip assembly on window body and corresponding sealing groove on frame body, to ensure the sealing waterproof performance of skylight. SUMMARY
[0003] The utility model solves the technical problems in the prior art, the structure of two kinds of sealing strips and sealing grooves in the rain leakage prevention open-close type panoramic skylight is relatively complex, poor universality, high production and use cost.
[0004] To solve the above problems, the utility model provides a dining car skylight leak protection device, the top surface of the frame body and the bottom surface of the window body are movably inserted with sealing strips, the cross section of the sealing strip is horizontally arranged long strip, a first cavity is formed in the sealing strip, a plurality of arc protrusions or arc grooves are formed on one side of the sealing strip, when the window body and the frame body are closed, the two sealing strips are in contact and extrusion, and the arc protrusions and the arc grooves are correspondingly matched;A water collecting groove is arranged on the top surface of the frame body, and a drainage channel is arranged in the frame body and communicated with the water collecting groove.
[0005] The dining car skylight leak protection device provided by the utility model also has the following technical features:
[0006] The top surface of the frame body and the bottom surface of the window body are provided with sealing cotton strips, the sealing cotton strips are arranged on the outer side of the sealing strips, the contact surfaces of the two sealing cotton strips are inclined surfaces, and the inclined surfaces are inclined from top to bottom and from inside to outside.
[0007] A water baffle is formed on the top surface of the frame body, the water baffle is arranged on the outer side of the sealing cotton strip and has a curved portion upward, and the outer side of the window body is provided with a round corner and can cover the water baffle.
[0008] The top surface of the frame body and the bottom surface of the window body are provided with insertion grooves, the other side of the sealing strip is integrally formed with a plug matched with the insertion groove, the opening of the insertion groove is oppositely formed with a limiting protrusion, and the plug is provided with a limiting groove matched with the limiting protrusion.
[0009] The plug is provided with a circular arc top surface at one end away from the sealing strip, and a second cavity is formed in the plug.
[0010] The drainage channel is inclined from top to bottom and from inside to outside.
[0011] The utility model discloses have the following beneficial effects: the sealing strip is correspondingly inserted in the top surface of frame body or the bottom surface of window body, when the window body and frame body are closed, two sealing strips are in contact and are pressed and are wide, so that the sealing length is widened, and the arc convex and the arc groove are matched with each other, so that the water at the contact and pressing place of two sealing strips is blocked, thereby further improving the sealing property, and the water near the sealing strip is discharged from the water collecting groove and the drainage channel. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the sectional view of the utility model non-sealing state;
[0013] Figure 2 It is the sectional view of the utility model sealing state. DETAILED DESCRIPTION
[0014] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0015] As Figures 1 to 2 The utility model discloses dining car skylight leak protection device, the top surface of frame body 10, the bottom surface of window body 11 all movably insert the sealing strip 12, the section of sealing strip 12 is transversely arranged long strip shape, forms the first cavity 13 in sealing strip 12, and the one side of sealing strip 12 forms multiple arc convex 14 or arc groove 15, when the window body 11 and frame body 10 are closed, two sealing strips 12 are in contact and are pressed, and arc convex 14 and arc groove 15 are correspondingly matched;The top surface of frame body 10 is equipped with water collecting groove 16, and frame body 10 is equipped with the drainage channel 17 that communicates with water collecting groove 16.
[0016] The sealing strip 12 is correspondingly inserted in the top surface of frame body 10 or the bottom surface of window body 11, when the window body 11 and frame body 10 are closed, two sealing strips 12 are in contact and are pressed and are wide, so that the sealing length is widened, and the arc convex 14 and the arc groove 15 are matched with each other, so that the water at the contact and pressing place of two sealing strips 12 is blocked, thereby further improving the sealing property, and the water near the sealing strip 12 is discharged from the water collecting groove 16, the drainage channel 17;Two sealing strips 12 are simple in structure and similar, and good in universality, reduce production and use cost.
[0017] The material of the frame body 10 and the window body 11 is polycarbonate. The device adopts a similar structure as the prior art, that is, the frame body 10 is arranged on the top of the vehicle body, one side of the window body 11 is hingedly connected with one side of the frame body 10 and is provided with a leakage prevention plate, the other three side edges are all connected through extrusion sealing of the sealing strips 12 and are all provided with corresponding water collecting grooves 16, a plurality of the water collecting grooves 16 converge in one drainage channel 17, and the above structure is the prior art and will not be repeated here. In addition, the other side of the window body 11 is driven to rotate through an electric push rod, so that the window body 11 is opened or closed relative to the frame body 10.
[0018] The material of the sealing strip 12 is an elastic material such as silicone rubber or polyurethane rubber.
[0019] The frame body 10 and the window body 11 of the utility model Figure 1 , Figure 2 are partially displayed based on the drawings of the specification of the prior art CN221292925U, that is, the sealing structure at the edge of the frame body 10 and the window body 11 is partially displayed, Figure 1 , Figure 2 wherein the left side is the inner side and the right side is the outer side; in addition, the overall structure of the prior art Figure 1 -fig. 3 is not detailed in the utility model.
[0020] Preferably, the top surface of the frame body 10 and the bottom surface of the window body 11 are both provided with sealing cotton strips 18, the sealing cotton strips 18 are arranged on the outer side of the sealing strips 12, the contact surfaces of the two sealing cotton strips 18 are inclined surfaces 19, and the inclined surfaces 19 are inclined from top to bottom and from inside to outside.
[0021] When the window body 11 is closed relative to the frame body 10, the two sealing strips 12 are in contact and extrusion with each other, and the two sealing cotton strips 18 are in contact and extrusion with each other, so as to further seal the outer side of the sealing strip 12; by arranging the contact surface of the sealing cotton strip 18 as the inclined surface 19, the water blocking effect is improved, and the sealing effect is further improved.
[0022] The top surface of the frame body 10 and the bottom surface of the window body 11 are both movably provided with the sealing cotton strips 18 through the magic tapes 30, so as to facilitate disassembly and assembly. The material of the sealing cotton strip 18 can be butyl rubber / PVC composite material, which is a closed-cell foam structure, or the material of the sealing cotton strip 18 can be silicone rubber, polyurethane foam or the like, so as to achieve the following effects: water isolation, sealing effect, air and moisture leakage, thereby improving the waterproof performance of the sunroof; heat preservation, reducing heat transfer, which is helpful to maintain the indoor temperature; noise reduction, reducing noise into the room, improving the quietness of the room; protecting the internal sealing strip 12, slowing down the aging process and prolonging the service life.
[0023] Preferably, the top surface of the frame 10 is formed with a water baffle 20, the water baffle 20 is arranged outside the sealing cotton strip 18 and is formed with a curved portion 21 upward, the outside of the window body 11 is provided with a round corner 22 capable of covering the water baffle 20, and the water on the top surface of the window body 11 falls on the top surface of the frame 10 along the round corner 22 outside and is blocked by the water baffle 20, further reducing the water flowing to the inside of the window body 11 and the frame 10, thereby improving the sealing effect.
[0024] Preferably, the top surface of the frame 10 and the bottom surface of the window body 11 are provided with a slot 23, the other side of the sealing strip 12 is integrally formed with a plug 24 matched with the slot 23, the opening of the slot 23 is oppositely formed with a limiting protrusion 25, and the plug 24 is provided with a limiting groove 26 corresponding to the limiting protrusion 25, the plug 24 is inserted into the slot 23 and is limited by the limiting groove 26 and the limiting protrusion 25, so as to install the sealing strip 12 on the top surface of the frame 10 or the bottom surface of the window body 11.
[0025] The plug 24 is made of the same elastic material as the sealing strip 12. The water collecting groove 16 is arranged on the top of the slot 23 and communicates with the slot 23, and the bottom of the slot 23 communicates with the drainage channel 17 through a communication hole 27.
[0026] Preferably, the end of the plug 24 away from the sealing strip 12 is provided with a circular arc top surface 28, and the plug 24 is formed with a second cavity 29, so that the plug 24 can be inserted into the slot 23 by deforming.
[0027] Preferably, the drainage channel 17 is inclined from top to bottom and from inside to outside.
[0028] The working principle of the utility model is as follows:
[0029] The plug 24 is inserted into the slot 23 and is limited by the limiting groove 26 and the limiting protrusion 25, so as to install the sealing strip 12 on the top surface of the frame 10 or the bottom surface of the window body 11. When the window body 11 is closed with the frame 10, the two sealing strips 12 are in contact and extruded to be widened, so as to widen the sealing length, the arc-shaped protrusion 14 and the arc-shaped groove 15 are matched with each other to block the water at the contact and extrusion position of the two sealing strips 12, and the two sealing cotton strips 18 with the inclined surface 19 are in contact and extruded with each other to seal the outside of the sealing strip 12; in addition, the water on the top surface of the window body 11 falls on the top surface of the frame 10 along the round corner 22 outside and is blocked by the water baffle 20, further reducing the water flowing to the inside of the window body 11 and the frame 10, thereby further improving the sealing property, and the water flowing to the vicinity of the sealing strip 12 is drained from the water collecting groove 16 and the drainage channel 17. The two sealing strips 12 are simple in structure and similar, good in universality, and low in production and use cost.
[0030] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not limited to; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still be modified to the technical solutions recorded in the foregoing examples, or part of the technical features are replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A dining car skylight leakage preventing device, characterized by comprising: The top surface of the frame (10) and the bottom surface of the window (11) are movably inserted with sealing strips (12), the cross section of the sealing strip (12) is horizontally long strip-shaped, a first cavity (13) is formed in the sealing strip (12), a plurality of arc protrusions (14) or arc grooves (15) are formed on one side of the sealing strip (12), when the window (11) is closed with the frame (10), the two sealing strips (12) are in contact and extrusion with each other, and the arc protrusions (14) are correspondingly matched with the arc grooves (15); the top surface of the frame (10) is provided with a water collecting groove (16), and the frame (10) is provided with a drainage channel (17) in communication with the water collecting groove (16).
2. The galley skylight leak prevention device of claim 1, wherein, The top surface of the frame (10) and the bottom surface of the window (11) are movably inserted with sealing strips (12), the cross section of the sealing strip (12) is horizontally long strip-shaped, a first cavity (13) is formed in the sealing strip (12), a plurality of arc protrusions (14) or arc grooves (15) are formed on one side of the sealing strip (12), when the window (11) is closed with the frame (10), the two sealing strips (12) are in contact and extrusion with each other, and the arc protrusions (14) are correspondingly matched with the arc grooves (15); the top surface of the frame (10) is provided with a water collecting groove (16), and the frame (10) is provided with a drainage channel (17) in communication with the water collecting groove (16).
3. The galley skylight leak prevention device of claim 2, wherein, The top surface of the frame (10) is provided with a water baffle (20), the water baffle (20) is arranged outside the sealing cotton strip (18) and upwardly forms a bending part (21), the outside of the window (11) is provided with a round corner (22) capable of covering the water baffle (20).
4. The galley skylight leak prevention device of claim 1, wherein, The top surface of the frame (10) and the bottom surface of the window (11) are movably inserted with sealing strips (12), the cross section of the sealing strip (12) is horizontally long strip-shaped, a first cavity (13) is formed in the sealing strip (12), a plurality of arc protrusions (14) or arc grooves (15) are formed on one side of the sealing strip (12), when the window (11) is closed with the frame (10), the two sealing strips (12) are in contact and extrusion with each other, and the arc protrusions (14) are correspondingly matched with the arc grooves (15); the top surface of the frame (10) is provided with a water collecting groove (16), and the frame (10) is provided with a drainage channel (17) in communication with the water collecting groove (16).
5. The galley skylight leak prevention device of claim 4, wherein, The top surface of the frame (10) and the bottom surface of the window (11) are movably inserted with sealing strips (12), the cross section of the sealing strip (12) is horizontally long strip-shaped, a first cavity (13) is formed in the sealing strip (12), a plurality of arc protrusions (14) or arc grooves (15) are formed on one side of the sealing strip (12), when the window (11) is closed with the frame (10), the two sealing strips (12) are in contact and extrusion with each other, and the arc protrusions (14) are correspondingly matched with the arc grooves (15); the top surface of the frame (10) is provided with a water collecting groove (16), and the frame (10) is provided with a drainage channel (17) in communication with the water collecting groove (16).
6. The galley skylight leak prevention device of claim 1, wherein, The drainage channel (17) is inclined from top to bottom and from inside to outside.
Citation Information
Patent Citations
Rainproof open-close type panoramic sunroof
CN221292925U