Dustproof track for automobile skylight
By designing a dustproof track for car sunroofs with a built-in sliding block and sealing gasket structure, the automatic cleaning of dust is achieved by utilizing air pressure difference, thus solving the problem of dust accumulation in the sunroof track and ensuring the normal operation of the sunroof.
Patent Information
- Application Number
- CN202520706727.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-15
AI Technical Summary
Existing car sunroof tracks are prone to accumulating dust during use, leading to blockages and affecting the normal opening and closing of the sunroof.
A dustproof track for automotive sunroofs has been designed. Through the built-in moving blocks and sealing gasket structure, it utilizes air pressure difference to achieve automatic dust cleaning. Combined with dust-absorbing cotton to intercept dust, it ensures a stable operating environment for internal components.
It enables automatic dust removal during the sunroof's movement, preventing dust from entering the track groove, keeping the track components clean, and ensuring the normal operation of the sunroof.
Smart Images

Figure CN223890774U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sunroof track technology, and in particular relates to a dustproof track for automobile sunroofs. Background Technology
[0002] A car sunroof is an openable and closable device installed on the roof of a car, allowing sunlight and fresh air to enter the vehicle. In order to guide the opening and closing movement of the sunroof, a corresponding guide rail is needed as a load-bearing structure during the installation of the car sunroof.
[0003] Currently, with existing car sunroof tracks, the tracks are exposed after the sunroof glass is removed. Dust and other impurities from the outside can directly enter the track grooves and accumulate, leading to blockages and even preventing the sunroof glass from opening and closing properly.
[0004] To address the aforementioned issues, this application proposes a dustproof track for automotive sunroofs. Utility Model Content
[0005] The purpose of this utility model is to provide a dustproof track for automobile sunroofs, which solves the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model is a dustproof track for a car sunroof, including an outer track and an inner track;
[0008] The inner frame is a long strip shape and is located inside the inner rail. The inner frame has a moving block that moves back and forth. The side wall of the inner rail has a positioning hole. When the inner frame moves back and forth, it causes air to pass through the positioning hole and enter the inner rail to form convection.
[0009] Furthermore, the front end of the inner frame is provided with a cover and a railing distributed at the front and back, forming a sandwich layer between the two.
[0010] Furthermore, a miniature drive motor is installed on the inner side of the cover, and the transmission rod at its front end passes through the guardrail.
[0011] Furthermore, the moving block is spirally connected to the guardrail.
[0012] Furthermore, the outer side of the transmission rod is provided with a convex shaft, which abuts against the hole inside the guardrail to form a seal.
[0013] Furthermore, the outer side of the moving block is provided with a blocking pad that abuts against the inner wall of the inner frame.
[0014] Furthermore, the positioning hole is provided with inner and outer layered sealing gaskets and dust-absorbing cotton.
[0015] Furthermore, under the action of pressure difference, the central part of the sealing gasket expands inward or outward to form a flare.
[0016] This utility model has the following beneficial effects:
[0017] This invention uses a built-in sliding block in the inner frame, which slides along with the sunroof to generate air pressure inside the inner frame. When the sunroof is closed, it generates an outward airflow that washes over the area where the inner track is located, causing dust to be expelled and achieving a dustproof and self-cleaning effect.
[0018] The pressure difference caused by the movement of the moving blocks causes the sealing gasket to flare outwards or inwards. On the inside, the dust-absorbing cotton intercepts dust in the air, preventing it from entering the inner frame, thus ensuring a stable operating environment for the internal components.
[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the guide rail cross-section structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the internal structure of the inner frame of this utility model;
[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the inner frame of this utility model;
[0025] The attached diagram lists the components represented by each number as follows:
[0026] In the picture:
[0027] 110. Outer rail; 120. Inner rail;
[0028] 210. Inner frame; 211. Cap; 212. Sealing gasket; 2121. Flared opening;
[0029] 213. Transmission rod; 214. Moving block; 2141. Blocking pad;
[0030] 215. Miniature drive motor; 216. Guardrail; 217. Cam shaft;
[0031] 218. Positioning hole; 219. Dust-absorbing cotton. Detailed Implementation
[0032] 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.
[0033] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0034] Please see Figure 1-4 As shown, this utility model is a dustproof track for a car sunroof, including an outer track 110 and an inner track 120;
[0035] The inner frame 210 is a long strip shape and is located inside the inner rail 120. The inner frame 210 is equipped with a moving block 214 that moves back and forth. The side wall of the inner rail 120 is provided with a positioning hole 218. When the inner frame 210 moves back and forth, it causes air to pass through the positioning hole 218 and enter the inner rail 120 to form convection. When the moving block 214 moves backward, a pressure difference is generated in the front area, causing air to enter from the positioning hole 218 in the front area. Conversely, it causes air to be ejected outward from the positioning hole 218 in the front area.
[0036] Preferably, the front end of the inner frame 210 is provided with a cover 211 and a railing 216 distributed front and back, forming a sandwich between the two. A micro drive motor 215 is installed on the inner side of the cover 211, and the transmission rod 213 at the front end of the cover 211 passes through the railing 216. The moving block 214 is spirally connected to the railing 216. A convex shaft 217 is provided on the outer side of the transmission rod 213, which abuts against the hole inside the railing 216 to form a seal. In use, the micro drive motor 215 drives the transmission rod 213, and by utilizing its spiral connection with the moving block 214, it can slide back and forth inside the inner frame 210. In addition, during the rotation of the transmission rod 213, the rubber body of the convex shaft 217 abuts against the hole in the railing 216, thereby forming a seal.
[0037] Preferably, the outer side of the moving block 214 is provided with a blocking pad 2141 that abuts against the inner wall of the inner frame 210, thereby causing a pressure difference to be formed in the inner frame 210 when the moving block 214 slides back and forth.
[0038] Preferably, the positioning hole 218 is provided with an inner and outer layered sealing gasket 212 and a dust-absorbing cotton 219. When the moving block 219 moves backward and draws in air in the front area, the dust-absorbing cotton 219 intercepts the dust in the air. Conversely, the dust on the surface of the dust-absorbing cotton 219 is blown outward.
[0039] Preferably, the central part of the sealing gasket 212 expands inward or outward under the action of pressure difference to form a flared opening 2121, which automatically resets after air is drawn in or discharged to form a sealed state to prevent dust from entering.
[0040] It is understandable that this utility model can automatically remove dust in real time during the opening and closing of the sunroof, thereby expelling dust from the track groove, preventing blockage of the sunroof's movement, and achieving the effect of self-cleaning and protecting the track components.
[0041] A specific application of the operation process in this embodiment is as follows: First, when the sunroof is opened and moved outward, the micro drive motor 215 is started simultaneously. The transmission rod 213 drives the moving block 214 to slide equidistantly with the sunroof. During this period, the tight contact between the blocking pad 2141 and the inner wall of the inner rail 120 generates negative pressure, causing the sealing pad 212 to deform inward and form an inward-facing flare 2121. At the same time, the dust-absorbing cotton 219 intercepts dust. Furthermore, when the sunroof is closed and retracted, the moving block 214 also retracts in the opposite direction, generating a pressure difference inside the inner frame 210, causing air to be squeezed outward. This causes the sealing pad 212 to open outward and form the flare 2121, allowing the internal air to be sprayed outward to flush the inner groove of the inner rail 120. In this way, the dust removal effect can be achieved every time the sunroof is closed.
[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A dustproof track for a car sunroof, characterized in that: Includes outer rail (110) and inner rail (120); The inner frame (210) is a long strip shape and is located inside the inner rail (120). The inner frame (210) is provided with a moving block (214) that moves back and forth. The side wall of the inner rail (120) is provided with a positioning hole (218). When the inner frame (210) moves back and forth, it causes air to pass through the positioning hole (218) and enter the inner rail (120) to form convection.
2. The dustproof track for an automobile sunroof according to claim 1, characterized in that: The front end of the inner frame (210) is provided with a cover (211) and a railing (216) distributed front and back, forming a sandwich layer between the two.
3. The dustproof track for a car sunroof according to claim 2, characterized in that: A miniature drive motor (215) is installed on the inner side of the cover (211), and the transmission rod (213) at the front end of the motor passes through the guardrail (216).
4. The dustproof track for an automobile sunroof according to claim 3, characterized in that: The moving block (214) is spirally connected to the guardrail (216).
5. The dustproof track for an automobile sunroof according to claim 3, characterized in that: The transmission rod (213) has a convex shaft (217) on its outer side, which abuts against the hole inside the guardrail (216) to form a seal.
6. The dustproof track for an automobile sunroof according to claim 1, characterized in that: The outer side of the moving block (214) is provided with a blocking pad (2141) that abuts against the inner wall of the inner frame (210).
7. The dustproof track for an automobile sunroof according to claim 1, characterized in that: The positioning hole (218) is provided with an inner and outer layered sealing gasket (212) and a dust-absorbing cotton (219).
8. The dustproof track for an automobile sunroof according to claim 7, characterized in that: The sealing gasket (212) expands inward or outward in the central part under the action of pressure difference, forming a flared opening (2121).