A passenger car sunroof with a seal that is easy to replace

By designing an opening and closing sealing component on the bus sunroof and utilizing the transmission of worm gear and threaded rod, the sealing plate can be easily disassembled and installed, solving the problem of complicated replacement of traditional sealing strips and improving replacement efficiency.

CN224576461UActive Publication Date: 2026-07-31DANYANG VEHICLE & SHIP DECORATIVE PART FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DANYANG VEHICLE & SHIP DECORATIVE PART FACTORY
Filing Date
2025-09-18
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The replacement process for existing bus sunroof sealing strips is complicated, requiring specialized tools and personnel, which causes inconvenience to users.

Method used

Design an opening and closing sealing assembly that utilizes the meshing transmission of a worm gear and a worm wheel, and the threaded connection between a threaded rod and a threaded slider, to realize the movement of an L-shaped sealing plate, facilitating the installation and removal of the sealing strip.

Benefits of technology

It simplifies the process of replacing the sealing strip, making the operation simple and convenient, requiring no professional tools or personnel, and improving replacement efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a bus sunroof with an easy-to-replace sealing strip, specifically relating to the field of bus sunroof technology. It includes a sunroof assembly with opening and closing sealing components on both sides of its bottom. The sunroof assembly includes a sunroof cover with a rotating shaft on its back. Mounting grooves are formed at the front and rear of the bottom surface of the sunroof cover, and sealing grooves are formed around the bottom surface of the cover. This bus sunroof with an easy-to-replace sealing strip utilizes the opening and closing sealing components, along with the meshing transmission of a worm gear and worm wheel, and the threaded connection between a threaded rod and a threaded slider, to move an L-shaped sealing plate, enabling the L-shaped sealing plate to engage and disengage from the groove. When the sealing strip needs to be replaced, simply turn the knob to disengage the L-shaped sealing plate from the groove, allowing the sealing strip to be easily removed for replacement. The operation is simple and convenient, requiring no special tools or personnel, greatly improving the efficiency of sealing strip replacement.
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Description

Technical Field

[0001] This utility model relates to the field of bus sunroof technology, specifically a bus sunroof with easy-to-replace sealing strips. Background Technology

[0002] As an important component of buses, the sunroof serves functions such as ventilation and lighting. To ensure the sunroof's sealing performance, a sealing strip is usually installed at the contact point between the sunroof cover and the bus body.

[0003] Chinese patent application number 202322039083.2 discloses a lightweight bus sunroof, specifically relating to the field of bus sunroof technology. It includes a first frame, within which a second frame is located. Both the second and first frames have four observation openings on their outer surface, with the four observation openings in the second frame positioned below the four in the first frame. Each observation opening contains tempered glass. A lifting assembly is located inside the first frame. This bus sunroof, which facilitates the replacement of sealing strips, uses eight electric push rods to drive a slider, raising the second frame and moving the four observation openings on the second frame to the positions of the observation openings on the first frame. External light then shines into the bus compartment through these openings, allowing light to pass through. Passengers can stand up and peer into the second frame through the observation openings to enjoy the outside scenery. A membrane sleeve between the first and second frames prevents dust and impurities from accumulating between them.

[0004] However, after long-term use, the sealing strips of bus sunroofs are prone to aging and wear, requiring replacement. However, the traditional installation method of sealing strips is relatively complicated, and the replacement process is time-consuming and laborious, often requiring professionals to use special tools to complete, which brings a lot of inconvenience to users.

[0005] Therefore, developing a bus sunroof with easily replaceable sealing strips to solve the problems existing in the current technology is of great practical significance. Utility Model Content

[0006] The purpose of this invention is to provide a bus sunroof with a convenient sealing strip replacement, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bus sunroof with easy-to-replace sealing strips, including a sunroof assembly, wherein opening and closing sealing components are provided on both sides of the bottom end of the sunroof assembly;

[0008] The sunroof assembly includes a sunroof cover, a pivot is provided on the back of the sunroof cover, mounting grooves are provided at the front and rear of the bottom of the sunroof cover, sealing grooves are provided around the bottom of the sunroof cover, and four snap-fit ​​grooves are provided on the inner wall of the sealing groove.

[0009] The opening and closing sealing assembly includes a long frame plate. A second sliding groove is formed on the top surface of the long frame plate. A threaded rod is rotatably installed in the second sliding groove. A worm gear is fixedly sleeved at the middle end of the threaded rod. A horizontal plate is fixedly installed in the middle of the bottom surface of the long frame plate. A worm gear is rotatably installed on one side of the top surface of the horizontal plate. Threaded sliders are threadedly sleeved at both ends of the threaded rod. Long plates are fixedly installed on the bottom outer sides of the two threaded sliders. L-shaped sealing plates are fixedly installed at the ends of the two long plates away from the threaded sliders.

[0010] Preferably, each of the two mounting slots has two grooves at the top of the inner wall of one end, and a first baffle is fixedly installed at one end of each groove. A round rod is movably inserted into the front of the first baffle.

[0011] Preferably, a limiting plate is fixedly installed at one end of the round rod, and a spring is movably sleeved on the rod body. The two ends of the spring are fixedly connected to the outer walls of the limiting plate and the first baffle, respectively.

[0012] Preferably, the bottom end of the worm extends below the bottom surface of the cross plate, and a knob is fixedly installed at the bottom end of the worm.

[0013] Preferably, the worm gear meshes with the worm wheel, and the threaded rod is a double-ended screw with the threaded ends of the threaded rod having opposite directions of rotation.

[0014] Preferably, the four L-shaped sealing plates correspond one-to-one with the four buckle grooves, and the long frame plate is fixedly installed in the mounting groove.

[0015] Preferably, a first sliding groove is provided on both the front and rear sides of the bottom of the sunroof cover, and the long plate is slidably installed in the first sliding groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This bus sunroof with easy-to-replace sealing strips utilizes an opening and closing sealing assembly. Through the meshing transmission of a worm gear and worm wheel, and the threaded connection between a threaded rod and a threaded slider, it can move an L-shaped sealing plate, enabling the L-shaped sealing plate to engage and disengage from the locking groove. When the sealing strip needs replacement, simply turn the knob to disengage the L-shaped sealing plate from the locking groove, allowing the sealing strip to be easily removed for replacement. The operation is simple and convenient, requiring no special tools or personnel, greatly improving the efficiency of sealing strip replacement. Attached Figure Description

[0018] Figure 1 This is a bottom view of the structure of this utility model;

[0019] Figure 2This is a top view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the sunroof component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the opening and closing sealing assembly structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the sunroof component of this utility model.

[0023] In the diagram: 1. Sunroof assembly; 101. Sunroof cover; 102. Rotary shaft; 103. Mounting groove; 104. No. 1 sliding groove; 105. Sealing groove; 106. Buckle groove; 107. Groove; 108. No. 1 baffle; 109. Round rod; 110. Limiting plate; 111. Spring; 2. Opening and closing sealing assembly; 201. Long frame plate; 202. No. 2 sliding groove; 203. Threaded rod; 204. Worm gear; 205. Horizontal plate; 206. Worm; 207. Knob; 208. Threaded slider; 209. Long plate; 210. L-shaped sealing plate. Detailed Implementation

[0024] 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.

[0025] like Figure 1-5 As shown, this utility model provides a technical solution: a bus sunroof with easy-to-replace sealing strips, including a sunroof assembly 1, and opening and closing sealing assemblies 2 are provided on both sides of the bottom end of the sunroof assembly 1.

[0026] The sunroof assembly 1 includes a sunroof cover 101, with a pivot 102 on the back of the sunroof cover 101, which allows the sunroof cover 101 to be opened and closed. The sunroof cover 101 has mounting grooves 103 at both the front and rear of its bottom surface for mounting the opening and closing sealing assembly 2.

[0027] The bottom surface of the sunroof cover 101 has sealing grooves 105 around its perimeter for placing a sealing strip. The inner wall of the sealing groove 105 has four snap-fit ​​grooves 106, which cooperate with the L-shaped sealing plate 210 to fix the sealing strip.

[0028] The opening and closing sealing assembly 2 includes a long frame plate 201, which is fixedly installed in the mounting groove 103. A second sliding groove 202 is formed on the top surface of the long frame plate 201, and a threaded rod 203 is rotatably installed in the second sliding groove 202. The threaded rod 203 is a double-ended threaded rod with opposite thread directions at both ends. A worm gear 204 is fixedly sleeved at the middle of the rod body of the threaded rod 203. A horizontal plate 205 is fixedly installed in the middle of the bottom surface of the long frame plate 201. A worm 206 is rotatably installed on one side of the top surface of the horizontal plate 205. The worm 206 meshes with the worm gear 204, and its bottom end extends below the bottom surface of the horizontal plate 205. A knob 207 is fixedly installed at the bottom end of the worm 206. Rotating the knob 207 drives the worm 206 to rotate, which in turn drives the threaded rod 203 to rotate via the worm gear 204.

[0029] Both ends of the threaded rod 203 are threadedly fitted with threaded sliders 208. Long plates 209 are fixedly installed on the bottom outer surfaces of both threaded sliders 208. A first groove 104 is provided on both the front and rear sides of the bottom of the sunroof cover 101. The long plates 209 are slidably installed within the first groove 104, guiding their movement. L-shaped sealing plates 210 are fixedly installed on the ends of both long plates 209 furthest from the threaded sliders 208. The four L-shaped sealing plates 210 correspond one-to-one with the four snap-fit ​​grooves 106, used to snap into the grooves 106 and fix the sealing strip in the sealing groove 105.

[0030] Two grooves 107 are formed at the top of the inner wall of each of the two mounting slots 103. A first baffle 108 is fixedly installed at one end of each groove 107. A round rod 109 is movably inserted into the front of the first baffle 108. A limiting plate 110 is fixedly installed at one end of the round rod 109. A spring 111 is movably sleeved on the body of the round rod 109. The two ends of the spring 111 are fixedly connected to the outer walls of the limiting plate 110 and the first baffle 108, respectively. This allows for the limiting of the threaded slider 208. Specifically, under the action of the spring 111, the limiting plate 110 abuts against the inner surface of the threaded slider 208 at the outermost edges of both ends of the second groove 202, thus limiting the threaded slider 208, improving the stability of the overall structure, and preventing the L-shaped sealing plate 210 from shifting when it is located within the groove 106.

[0031] The working principle of this invention is as follows: When the sealing strip needs to be replaced, the knob 207 is turned, which drives the worm 206 to rotate. The worm 206 meshes with the worm wheel 204, thereby driving the worm wheel 204 and the threaded rod 203 to rotate. Since the threaded rod 203 is a double-ended screw with opposite thread patterns at both ends, when the threaded rod 203 rotates, it drives the two threaded sliders 208 to move in opposite directions. The threaded sliders 208 drive the long plate 209 to slide in the first groove 104. The long plate 209 then drives the L-shaped sealing plate 210 to move, causing the L-shaped sealing plate 210 to disengage from the retaining groove 106. The retaining groove 106 can then be opened, and the operator can easily insert their fingers into the retaining groove 106 and into the inside of the sealing strip. Then, the section of the sealing strip located in the retaining groove 106 can be easily pried out.

[0032] At this point, the sealing strip can be removed from the sealing groove 105 for replacement. After replacement, turn the knob 207 in the opposite direction to re-engage the L-shaped sealing plate 210 into the locking groove 106, thus securing the sealing strip.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bus sunroof with easily replaceable sealing strips, comprising a sunroof assembly (1), characterized in that... The sunroof assembly (1) is provided with opening and closing sealing assemblies (2) on both sides of its bottom end. The sunroof assembly (1) includes a sunroof cover (101), a pivot (102) is provided on the back of the sunroof cover (101), an installation groove (103) is provided on the front and rear of the bottom of the sunroof cover (101), a sealing groove (105) is provided around the bottom surface of the sunroof cover (101), and four fastening grooves (106) are provided on the inner wall of the sealing groove (105). The opening and closing sealing assembly (2) includes a long frame plate (201). A second sliding groove (202) is provided on the top surface of the long frame plate (201). A threaded rod (203) is rotatably installed in the second sliding groove (202). A worm gear (204) is fixedly sleeved at the middle end of the rod body of the threaded rod (203). A horizontal plate (205) is fixedly installed in the middle of the bottom surface of the long frame plate (201). A worm gear (206) is rotatably installed on one side of the top surface of the horizontal plate (205). Threaded sliders (208) are threadedly sleeved at both ends of the rod body of the threaded rod (203). Long plates (209) are fixedly installed on the bottom of the outer side of the two threaded sliders (208). An L-shaped sealing plate (210) is fixedly installed at the end of the two long plates (209) away from the threaded sliders (208).

2. A bus sunroof with easily replaceable sealing strips according to claim 1, characterized in that, Two grooves (107) are started at the top of the inner wall of one end of each of the two mounting slots (103). A baffle (108) is fixedly installed at one end of each groove (107). A round rod (109) is movably inserted into the front of the baffle (108).

3. A bus sunroof with easily replaceable sealing strips according to claim 2, characterized in that, One end of the round rod (109) is fixedly installed with a limiting plate (110), and a spring (111) is movably sleeved on the rod body of the round rod (109). The two ends of the spring (111) are fixedly connected to the outer walls of the limiting plate (110) and the first baffle (108), respectively.

4. A bus sunroof with easily replaceable sealing strips according to claim 1, characterized in that, The bottom end of the worm (206) extends below the bottom surface of the cross plate (205), and a knob (207) is fixedly installed at the bottom end of the worm (206).

5. A bus sunroof with easily replaceable sealing strips according to claim 1, characterized in that, The worm (206) is meshed with the worm wheel (204), and the threaded rod (203) is a double-ended screw with the threaded grooves at both ends of the threaded rod (203) arranged in opposite directions.

6. A bus sunroof with easily replaceable sealing strips according to claim 1, characterized in that, The four L-shaped sealing plates (210) correspond one-to-one with the four snap-fit ​​grooves (106), and the long frame plate (201) is fixedly installed in the mounting groove (103).

7. A bus sunroof with easily replaceable sealing strips according to claim 1, characterized in that, The sunroof cover (101) has a first groove (104) on both the front and rear sides of its bottom, and the long plate (209) is slidably installed in the first groove (104).