Anti-pinch automobile skylight guide rail
By introducing components such as connecting blocks, contact plates, and deformation rings into the automotive sunroof guide rail, and using the contact of foreign objects to trigger a short circuit in the wiring harness, the problem of misjudgment or inability to close the sunroof in rainy or dusty environments is solved, thus achieving reliable closure of the sunroof and reducing the risk of pinching injuries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI SHENGDA QIANLIANG ALUMINUM
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-05
AI Technical Summary
Existing car sunroofs may misjudge or fail to close in rainy or dusty environments, posing a risk of pinching and injuring occupants.
An anti-pinch car sunroof guide rail was designed. By setting up components such as connecting blocks, contact plates, elastic tubes and deformation rings inside the rail, the deformation ring caused by the contact plate when a foreign object comes into contact with the contact plate protrudes out of the contact harness, thereby short-circuiting the harness and sending a signal to stop the sunroof from moving.
This effectively avoids the influence of environmental factors on the judgment of the skylight closing, ensuring that the skylight closes smoothly when there are no foreign objects in the track, avoiding misjudgment or failure to close, and reducing the risk of pinching injuries.
Smart Images

Figure CN224197568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive sunroof tracks, and in particular to an anti-pinch automotive sunroof guide rail. Background Technology
[0002] Car sunroofs typically consist of a decorative panel and a glass panel, both mounted on the roof of the vehicle via rails. The heavier glass panel can be moved by a motor, and the decorative panel is usually opened and closed manually.
[0003] To prevent injury to occupants during the movement of the sunroof, sensors, detection components, and processing equipment are used to prevent the sunroof from closing if an object is present in the guide rail. However, over time, the sensors and detection components may misjudge or fail to detect objects in a timely manner. Furthermore, these sensors and detection components require high precision, and in rainy or dusty environments, they may misjudge, causing the sunroof to fail to close or stop closing, resulting in injury. This is quite inconvenient for occupants. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this utility model is to provide an anti-pinch car sunroof guide rail, which solves the problem that the vehicle sunroof may not be able to close or may misjudge in special environments such as rainy or dusty environments.
[0005] The technical solution of this utility model is as follows: an anti-pinch car sunroof guide rail, comprising two opposing rails, a connecting block slidably engaging within the rails, an installation groove being formed in the inner wall of the rails, and wire harnesses evenly arranged in the inner wall of the installation grooves, the wire harnesses being connected to a processing device, an installation surface and a protective surface being formed on both sides of the connecting block, respectively, a groove being formed in the horizontal direction on the protective surface of the connecting block, and slots being symmetrically formed along the grooves on the connecting block, a contact plate being inserted into the slot, an elastic tube being provided between the inner wall of the slot and the contact plate, a pressure block being provided on the side of the contact plate near the groove, and a deformation ring being provided in the groove corresponding to the pressure block, one end of the deformation ring extending towards one side of the rail through the groove, and a connecting strip being provided on the surface of the extended end of the deformation ring.
[0006] Furthermore, the contact plate includes a rigid plastic plate that spans between the two tracks. Two transverse T-shaped strips are symmetrically arranged on the side of the plastic plate near the connecting block. The contact plate is connected to the connecting block by means of the T-shaped strips engaging with the grooves.
[0007] Furthermore, the inner wall of the groove is stepped, the inner diameter of the groove is larger than the diameter of the opening side, the width of the large diameter part of the groove is adapted to the sum of the width of the vertical part of the T-shaped strip of the contact plate and the width of the elastic tube, and the small diameter part of the groove is adapted to the horizontal part of the T-shaped strip of the contact plate, ensuring that the contact plate has sufficient room to move in the groove to squeeze the elastic tube to deform, while the position of the elastic tube can be made to remain unchanged.
[0008] Furthermore, the surface of the T-shaped strip of the contact plate is provided with positioning ribs, and the inner wall of the groove is provided with a limiting groove corresponding to the positioning ribs to prevent the contact plate from shifting position during the movement.
[0009] Furthermore, the elastic tube is made entirely of elastic rubber material, and several reinforcing plates are evenly spaced on the inner wall to ensure that the elastic tube can quickly recover after deformation.
[0010] Furthermore, the pressure block has an inclined surface on the side near the groove, and is made of hard plastic material. The deformation ring is made of flexible rubber material and is teardrop-shaped. The inclined surface of the deformation ring is adapted to the inclined surface of the pressure block, so that the pressure block can squeeze the deformation ring to deform in a specific direction.
[0011] Furthermore, the connecting strip is arranged perpendicular to the wire harness, and both the connecting strip and the wire harness are made of copper metal strips, ensuring that all wire harnesses can be short-circuited after the connecting strip comes into contact with the wire harness.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. This utility model connects the car sunroof through a connecting block, instead of directly connecting the sunroof to the guide rail. When the sunroof moves, the connecting block drives the contact plate to move. If there is a foreign object in the sunroof's movement path, the contact plate will first come into contact with the foreign object, causing the moving and squeezing deformation ring. After being squeezed, the deformation ring will bulge outward, causing the connecting strip to contact the wiring harness. After the wiring harnesses are short-circuited, the processing equipment receives the signal and stops the sunroof from continuing to move, thereby avoiding pinching when the sunroof moves along the guide rail.
[0014] 2. This utility model determines whether the sunroof continues to move along the track by whether the contact plate comes into contact with foreign objects, thus avoiding the influence of the usage environment on the judgment result. It is only necessary to ensure that there are no foreign objects in the track on which the sunroof moves to ensure that the sunroof can be closed smoothly, thus avoiding misjudgment or failure to close. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the installation of the connecting block of this utility model;
[0017] Figure 3 This is a schematic diagram of the contact plate structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the connecting block structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the deformable ring structure of this utility model;
[0020] Figure 6 This is a cross-sectional view of the groove of this utility model.
[0021] Reference numerals: 1. Track; 2. Connecting block; 3. Mounting groove; 4. Wire harness; 5. Groove; 6. Slot; 7. Contact plate; 8. Elastic tube; 9. Pressure block; 10. Deformation ring; 11. Connecting strip. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Example 1, such as Figure 1-6 As shown, an anti-pinch car sunroof guide rail includes two opposing rails 1, a connecting block 2 is slidably engaged in the rail 1, an installation groove 3 is provided on the inner wall of the rail 1, wire harnesses 4 are evenly arranged on the inner wall of the installation groove 3, the wire harnesses 4 are connected to the processing equipment, the two sides of the connecting block 2 are the installation surface and the protective surface respectively, and the protective surface of the connecting block 2 has a groove 5 in the horizontal direction.
[0024] The connecting block 2 has symmetrical slots 6 along the groove 5. A contact plate 7 is inserted into the slot 6. The contact plate 7 includes a rigid plastic plate that spans between the two rails 1. Two horizontal T-shaped strips are symmetrically arranged on the side of the plastic plate near the connecting block 2. The contact plate 7 is connected to the connecting block 2 by engaging the groove 5 with the T-shaped strips. An elastic tube 8 is provided between the inner wall of the slot 6 and the contact plate 7. The inner wall of the groove 5 is stepped. The inner diameter of the groove 5 is larger than the diameter of the opening side. The sum of the width of the larger diameter portion of the groove 5 and the width of the portion perpendicular to the T-shaped strip of the contact plate 7 and the width of the elastic tube 8 is appropriate. The small-diameter portion of the groove 5 is adapted to the horizontal portion of the T-shaped strip of the contact plate 7, ensuring that the contact plate 7 has sufficient space to move within the groove 5 to compress the elastic tube 8 and cause it to deform. At the same time, the elastic tube 8 can be made so that the position of the contact plate 7 does not change. The elastic tube 8 is made entirely of elastic rubber material, and several reinforcing plates are evenly spaced on the inner wall to ensure that the elastic tube 8 can quickly recover after deformation. The surface of the T-shaped strip of the contact plate 7 is provided with positioning ribs, and the inner wall of the groove 5 is provided with limiting grooves corresponding to the positioning ribs to prevent the contact plate 7 from shifting its position during movement.
[0025] A pressure block 9 is provided on the side of the contact plate 7 near the groove 5. A deformation ring 10 is provided in the groove 5 corresponding to the pressure block 9. The side of the pressure block 9 near the groove 5 has an inclined surface. The whole is made of hard plastic material. The deformation ring 10 is made of flexible rubber material and is teardrop-shaped. The inclined surface of the deformation ring 10 and the inclined surface of the pressure block 9 are adapted to each other, so that the pressure block 9 can squeeze the deformation ring 10 to deform in a specific direction. One end of the deformation ring 10 extends to the side of the track 1 through the groove 5. A connecting strip 11 is provided on the surface of the extended end of the deformation ring 10. The connecting strip 11 is set perpendicular to the wire harness 4. Both the connecting strip 11 and the wire harness 4 are copper metal strips to ensure that all wire harnesses 4 can be short-circuited after the connecting strip 11 contacts the wire harness 4.
[0026] The working principle of this utility model is as follows: First, the sunroof is installed on the mounting surface of the connecting block 2 during use. The connecting block 2 connects the sunroof and the track 1. During the closing process of the sunroof, the sunroof pushes the connecting block 2 to move along the track 1. During the movement, the contact plate 7 on one side of the protective surface of the connecting block 2 comes into contact with foreign objects in the movement path of the sunroof. At this time, the connecting block 2 remains in a moving state while the contact plate 7 is blocked and stops moving. The relative distance between the contact plate 7 and the connecting block 2 is shortened, and the elastic tube 8 located between the connecting block 2 and the contact plate 7 is squeezed and deformed. At the same time, the pressure block 9 on the surface of the contact plate 7 comes into contact with the deformation ring 10 and squeezes the deformation ring 10. The shape of the deformation ring 10 and the pressure block 9 causes the extension of the deformation ring 10 to protrude outward and enter the mounting groove 3. The connecting strip 11 on the surface of the deformation ring 10 comes into contact with the wire harness 4. Multiple wire harnesses 4 are short-circuited to each other through the connecting strip 11. After receiving the short-circuit signal of the wire harness 4, the processing equipment connected to the wire harness 4 stops the movement of the sunroof to avoid the sunroof from continuing to move and causing pinching.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An anti-pinch car sunroof guide rail, comprising two opposing rails (1), characterized in that: The track (1) is slidably engaged with a connecting block (2). The inner wall of the track (1) is provided with an installation groove (3). The inner wall of the installation groove (3) is evenly arranged with wire harnesses (4). The wire harnesses (4) are connected to the processing equipment. The two sides of the connecting block (2) are the installation surface and the protective surface, respectively. The protective surface of the connecting block (2) is provided with a groove (5) in the horizontal direction. The connecting block (2) is symmetrically provided with a slot (6) along the groove (5). A contact plate (7) is inserted into the slot (6). An elastic tube (8) is provided between the inner wall of the slot (6) and the contact plate (7). A pressure block (9) is provided on the side of the contact plate (7) near the groove (5). A deformation ring (10) is provided in the groove (5) corresponding to the pressure block (9). One end of the deformation ring (10) extends to the side of the track (1) through the groove (5). A connecting strip (11) is provided on the surface of the extended end of the deformation ring (10).
2. The anti-pinch car sunroof guide rail according to claim 1, characterized in that: The contact plate (7) includes a rigid plastic plate that spans between two tracks (1). Two horizontal T-shaped strips are symmetrically arranged on the side of the plastic plate near the connecting block (2). The contact plate (7) is connected to the connecting block (2) by means of T-shaped strip engaging grooves (5).
3. The anti-pinch car sunroof guide rail according to claim 2, characterized in that: The inner wall of the groove (5) is stepped. The inner diameter of the groove (5) is larger than the diameter of the opening side. The width of the large diameter part of the groove (5) is matched with the sum of the width of the vertical part of the T-shaped strip of the contact plate (7) and the width of the elastic tube (8). The small diameter part of the groove (5) is matched with the horizontal part of the T-shaped strip of the contact plate (7).
4. The anti-pinch car sunroof guide rail according to claim 3, characterized in that: The contact plate (7) has a positioning rib on its T-shaped surface, and the groove (5) has a limiting groove on its inner wall corresponding to the positioning rib.
5. The anti-pinch car sunroof guide rail according to claim 1, characterized in that: The elastic tube (8) is made of elastic rubber material, and a number of reinforcing plates are evenly spaced on the inner wall.
6. The anti-pinch car sunroof guide rail according to claim 1, characterized in that: The pressure block (9) has an inclined surface on the side near the groove (5), and is made of hard plastic material. The deformation ring (10) is made of flexible rubber material and is teardrop-shaped. The inclined surface of the deformation ring (10) is compatible with the inclined surface of the pressure block (9).
7. The anti-pinch car sunroof guide rail according to claim 1, characterized in that: The connecting strip (11) is set perpendicular to the wire harness (4), and both the connecting strip (11) and the wire harness (4) are copper metal strips.