Supporting middle beam of automobile sunroof

By designing the cut-out plates and sealing structure of the automotive sunroof support beam, the problems of easy damage and inconvenient replacement of sealing strips were solved, enabling convenient replacement and stable fixation of sealing strips, and improving sealing effect and service life.

CN223533324UActive Publication Date: 2025-11-11KUNSHAN LIANXIONG AUTO PARTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422988673.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-11-11
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

The sealing strips of the existing car sunroof center beam are easily damaged during opening and closing, and are inconvenient to replace, resulting in poor sealing performance.

Method used

A support beam for an automotive sunroof was designed, employing a structure of cut-out plates and sealing components. The sealing components are detachably connected by bolts, and the limiting part cooperates with the limiting groove to achieve convenient replacement and stable fixation of the sealing strip.

Benefits of technology

It enables convenient replacement and stable fixation of the sealing strip, improves the sealing effect, and extends the service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223533324U_ABST
    Figure CN223533324U_ABST
Patent Text Reader

Abstract

The utility model discloses an automobile sunroof supporting middle beam, which relates to the technical field of automobile sunroofs and comprises a cutting plate, two sides of the cutting plate in the width direction are bent to form a sunken drainage groove in the middle, and positioning holes are arranged at two ends of the drainage groove. The side, facing the front beam, of the cutting plate is detachably connected with a sealing piece in the thickness direction of the cutting plate, and the side, facing the front beam, of the sealing piece is wrapped with a sealing strip. And by arranging the detachably-connected sealing piece, the sealing strip is more convenient to replace, and the sealing strip is prevented from being damaged to affect the sealing effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a central beam, and more specifically, to a central beam supporting a car sunroof. Background Technology

[0002] Currently, most car sunroofs use a central beam to reinforce the sunroof frame. Typically, the central beam structure consists of a connecting area and multiple reinforcing grooves. Since sealing strips are usually installed on both sides of the central beam that fit against the sunroof, the sealing effect at the central beam is ensured when the sunroof is closed.

[0003] Most existing sealing strips on both sides of the central beam are directly fastened to the side of the central beam. The sealing strip on the side facing the operable sunroof is squeezed every time the operable sunroof is opened and closed, which will cause damage to the sealing strip after long-term use. When the sunroof is open, the sealing strip is exposed to the outside, which is also prone to damage. When the sealing strip is damaged, the sealing effect will be poor and it will need to be replaced. The existing sealing strip fastening method mostly relies on the elasticity of the sealing strip itself for disassembly and replacement. However, the sealing strip itself is not long enough, which makes disassembly and installation very inconvenient. Forcing the installation by relying on elasticity can easily damage the fastening part of the sealing strip.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a central beam for supporting a car sunroof.

[0006] The technical solution of this utility model is:

[0007] A car sunroof support beam includes a cut plate. The cut plate is bent on both sides in the width direction to form a recessed drainage groove in the middle. Positioning holes are provided at both ends of the drainage groove. A sealing element is detachably connected to the side of the cut plate facing the front crossbeam along its thickness direction. A sealing strip is covered on the side of the sealing element facing the front crossbeam.

[0008] The present invention is further configured such that the sealing strip is made of rubber.

[0009] The present invention is further configured such that a limiting groove is symmetrically provided on the inner bottom wall of the drainage channel along its length direction, and a connecting member is integrally formed on the side of the sealing member facing the drainage channel and is symmetrically arranged. The end of the connecting member away from the sealing member is provided with a limiting member for embedding in the limiting groove, and the limiting member and the limiting groove are fixedly connected by the cooperation of bolts and nuts.

[0010] The present invention is further configured such that bends are formed on both sides of the cut plate in the width direction, and the cross section of the sealing member is arc-shaped and fits the bends.

[0011] The present invention is further configured such that the sealing element has a groove on the side facing the cutting plate, and the sealing strip is integrally connected to a limiting part located on both sides of the connecting element on one side. The limiting part is bent and extends into the groove, and the limiting part is in contact with the cutting plate.

[0012] The present invention is further configured such that both ends of the cut plate are symmetrically provided with positioning parts along the width direction on both sides of the drainage groove, the positioning parts protruding towards the top of the cut plate, one side of the positioning part is recessed to form a positioning groove that cooperates with the longitudinal beam, and the other side of the positioning part is protruding to form a positioning protrusion that cooperates with the top cover.

[0013] The beneficial technical effects of this utility model are:

[0014] By setting a seal, the seal is detachably connected to the cut plate by bolts. When the sealing strip wears out, it is only necessary to loosen the bolts and nuts to remove the seal from the cut plate. At this time, one side of the limiting part is not restricted. It is only necessary to deform the limiting part to remove the seal from the sealing strip and replace the sealing strip. Moreover, during replacement, the limiting part itself has a small cross section and is more easily deformed, making disassembly and installation more convenient.

[0015] If the limiting part loses its elasticity during installation, it can still play a good limiting role when the seal is installed on the cut plate and the limiting part contacts the cut surface, preventing the sealing strip from falling off; thus ensuring the service life of the overall structure and the sealing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of this utility model;

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a structural schematic diagram of the cutting board of this utility model.

[0020] In the diagram, 1 is the cut sheet; 2 is the positioning hole; 3 is the seal; 4 is the connector; 5 is the limiting part; 6 is the limiting groove; 7 is the groove; 8 is the sealing strip; 9 is the limiting part; and 10 is the positioning protrusion. Detailed Implementation

[0021] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] A type of car sunroof support beam, such as Figures 1-4 As shown, the panel includes a cut plate 1. The cut plate 1 is bent on both sides in the width direction to form a recessed drainage groove in the middle. The bends form a bend, and when bent, the two ends of the cut plate 1 are symmetrically positioned along the width direction on both sides of the drainage groove. Positioning holes 2 are provided at both ends of the drainage groove. A sealing element 3 is detachably connected to the side of the cut plate 1 facing the front crossbeam along its thickness direction. A sealing strip 8 is covered on the side of the sealing element 3 facing the front beam. The length of the sealing element 3 and the sealing strip 8 is greater than or equal to the length of the skylight, and can fully contact one side of the skylight. By detachably connecting the sealing element 3, it is convenient to install and remove the sealing element 3. When the sealing strip 8 is worn, the sealing element 3 can be removed to easily remove the sealing strip 8 for replacement, thus ensuring the sealing effect of the overall sealing element 3.

[0023] The sealing strip 8 has a hook-shaped cross-section and is made of rubber, which has good elasticity. Its hook-shaped part covers the bottom of the sealing element 3, ensuring both the fixing effect and the sealing effect of the sealing strip 8. The inner bottom wall of the drainage channel has symmetrically arranged limiting grooves 6 along its length. The sealing element 3 has symmetrically arranged connecting parts 4 integrally formed on the side facing the drainage channel. The end of the connecting part 4 away from the sealing element 3 has a limiting part 5 for embedding into the limiting groove 6. The limiting part 5 and the limiting groove 6 are fixedly connected by bolts and nuts. The thickness of the limiting part 5 is less than the depth of the limiting groove 6. By setting the limiting part 5 and the limiting groove 6, the relative positioning of the connecting part 4 and the cutting plate 1 is completed, thereby making the fixing more stable and preventing the sealing strip 8 from being skewed during the installation of the sealing element 3, which would affect the sealing effect. The cross-section of the sealing element 3 is arc-shaped and fits the bending part. The sealing strip 8 has a notch for the connecting part 4 to pass through. The side of the sealing element 3 close to the connecting part 4 is made of aluminum alloy, which has a certain degree of elasticity. This allows the sealing element 3 to exert a certain compressive force on the surface of the cut plate 1, thereby further ensuring the sealing effect between the cut plate 1 and the sealing element 3. A groove 7 is provided on the side of the sealing element 3 facing the cut plate 1. One side of the sealing strip 8 is integrally connected to limiting parts 9 located on both sides of the connecting element 4. The limiting parts 9 are bent and extend into the groove 7. There is a gap between the limiting parts 9 and the bottom wall of the groove 7. The limiting parts 9 contact the cut plate 1. By inserting the limiting parts 9 into the groove 7, the overall sealing strip 8 is restricted from moving away from the cut plate 1. Separating the sealing element 3 completes the fixation of the sealing strip 8. When the sealing element 3 is fixed to the cutting plate 1, the sealing element 3 also presses against the limiting part 9, causing the limiting part 9 to abut against the cutting plate 1, further making the fixation of the sealing strip 8 more stable. Since the limiting part 9 is only set on both sides of the sealing element 3 and has a small cross-section, it is easier to deform. When the sealing element 3 is removed from the cutting plate 1, it is only necessary to deform the limiting part 9 to complete the separation of the sealing strip 8 from the sealing element 3, thereby completing the replacement of the sealing strip 8, making the replacement more convenient.

[0024] The positioning part protrudes towards the top of the cut plate 1. One side of the positioning part is recessed to form a positioning groove that cooperates with the longitudinal beam, and the other side of the positioning part protrudes to form a positioning protrusion 10 that cooperates with the top cover. The positioning groove and the positioning protrusion 10 can effectively ensure the positioning effect of the overall middle beam and the body frame, and also ensure the stability of the middle beam and the body.

[0025] Working principle: The sealing strip 8 is sleeved on the sealing element 3, and its limiting part 9 is set on both sides of the connector 4 and extends into the groove 7 to complete the relative fixation of the sealing strip 8 and the sealing element 3. The connector 4 of the sealing element 3 is brought close to the top of the cutting plate 1, and the limiting part 5 at the end of the connector 4 is fitted into the limiting groove 6. The limiting part 5 and the limiting groove 6 are fixed by the cooperation of bolts and nuts, and the relative fixation of the cutting plate 1 and the sealing element 3 is completed at the same time. At this time, the limiting part 9 of the sealing strip 8 abuts against the surface of the cutting plate 1, and the surface of the sealing element 3 also abuts against the surface of the cutting plate 1, thus completing the sealing of the sealing element 3 and the cutting plate 1, thereby ensuring the sealing effect.

[0026] The center beam with the sealing strip 8 installed is fixed to the frame, and the vehicle body is installed. During normal use, if the sealing strip 8 wears, it is only necessary to loosen the bolts and nuts to remove the sealing element 3 from the cutting plate 1. At this time, one side of the limiting part 9 is unrestricted. It is only necessary to deform the limiting part 9 to remove the sealing element 3 from the sealing strip 8, so as to replace the sealing strip 8. During replacement, the limiting part 9 itself has a small cross-section and is more easily deformed, making disassembly and installation more convenient. If the limiting part 9 loses its elasticity during installation, when the sealing element 3 is installed on the cutting plate 1, the limiting part 9 will contact the cutting surface and play a good limiting role, preventing the sealing strip 8 from falling off. This ensures the service life of the overall structure and the sealing effect.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A central beam supporting a car sunroof, characterized in that: The cut plate (1) is bent on both sides in the width direction to form a recessed drainage groove in the middle. Positioning holes (2) are provided at both ends of the drainage groove. A sealing element (3) is detachably connected to the side of the cut plate (1) facing the front crossbeam along its thickness direction. A sealing strip (8) is wrapped around the side of the sealing element (3) facing the front beam.

2. The automotive sunroof support beam according to claim 1, characterized in that: The sealing strip (8) has a hook-shaped cross section and is made of rubber.

3. The automotive sunroof support beam according to claim 1, characterized in that: The inner bottom wall of the drainage channel is symmetrically provided with limiting grooves (6) along its length direction. The sealing member (3) is integrally formed with symmetrically arranged connecting members (4) on the side facing the drainage channel. The end of the connecting member (4) away from the sealing member (3) is provided with a limiting member (5) for embedding in the limiting groove. The limiting member (5) and the limiting groove (6) are fixedly connected by the cooperation of bolts and nuts.

4. The automotive sunroof support beam according to claim 1, characterized in that: The cut plate (1) has bends on both sides in the width direction, and the seal (3) has an arc-shaped cross section that fits the bends.

5. The automotive sunroof support beam according to claim 1, characterized in that: The sealing element (3) has a groove (7) on the side facing the cutting plate (1). The sealing strip (8) is integrally connected to a limiting part (9) located on both sides of the connector (4). The limiting part (9) is bent and extends into the groove (7). The limiting part (9) is in contact with the cutting plate (1).

6. The automotive sunroof support beam according to claim 1, characterized in that: Both ends of the cut plate (1) are symmetrically provided with positioning parts along the width direction on both sides of the drainage groove. The positioning parts protrude towards the top of the cut plate (1). One side of the positioning part is recessed to form a positioning groove that cooperates with the longitudinal beam, and the other side of the positioning part is protruding to form a positioning protrusion (10) that cooperates with the top cover.