A car door glass lower guide rail rubber strip anti-falling structure

Abstract

The utility model relates to the technical field of automobile parts, disclose a car door glass lower guide rail adhesive tape anti -drop structure, including lower guide rail, both ends of lower guide rail all are fixedly connected with two symmetrical setting connecting lug, both ends of lower guide rail all are set up with first through -hole, the inside of first through -hole is provided with limiting bolt, the utility model discloses the inside of the limiting block is put into the adhesive tape, the flanging of adhesive tape both sides is clamped in the both sides of limiting block, the second through -hole in the flanging inside is embedded into limiting block, plays the limiting effect, then the limiting block is put into the inside of lower guide rail, the extension block is through the through -slot and penetrates lower guide rail to the position of limiting block play the role of positioning, avoid the position deviation when assembling, the subsequent installation fixedly convenient, then limiting bolt and limiting convex thread connection, the flanging limiting, prevent adhesive tape to move up and down, avoid the adhesive tape from the inside of lower guide rail and separate, effectively reduced the glass lifting failure risk that the adhesive tape caused.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a structure for preventing the rubber strip of the lower guide rail of a car door glass from detaching. Background Technology

[0002] The lower guide rail rubber strip of the car door is an elastic sealing component installed in the lower guide rail of the car door glass. It is usually made of aging-resistant and weather-resistant materials such as rubber or EPDM. Its core function is to provide stable guidance for the glass to rise and fall, while sealing the gap between the glass and the guide rail to prevent rainwater, dust, mud and other impurities from entering the car door and avoid corrosion or failure of internal mechanical parts. In addition, it can reduce friction noise during the glass rising and falling process, buffer glass vibration, and improve the quietness and ride comfort during driving. Some rubber strips are also designed with lip structure or flocking layer to further optimize the sealing performance and reduce the frictional resistance during the glass rising and falling, ensuring smooth glass rising and falling and maintaining good sealing and guiding effect after long-term use.

[0003] Most door glass strips are connected to the lower guide rail via clips or adhesive. In clip-on fixing, the clips are prone to wear or deformation due to friction and vibration from frequent glass raising and lowering, which reduces the engagement strength between the strip and the lower guide rail and causes the strip to loosen. Adhesive fixing is greatly affected by ambient temperature and humidity. The adhesive will fail under long-term exposure to high temperatures, causing the strip to separate from the lower guide rail, affecting the glass raising and lowering function, and causing glass jamming, abnormal noises during raising and lowering, or even failure to raise and lower. Therefore, we propose a door glass lower guide rail anti-detachment structure. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a structure for preventing the rubber strip of the lower guide rail of the car door glass from detaching.

[0005] This utility model is achieved using the following technical solution: a door glass lower guide rail anti-detachment structure, including a lower guide rail, with two symmetrically arranged connecting ears fixedly connected to both ends of the lower guide rail, a first through hole opened at both ends of the lower guide rail, a limit bolt installed inside the first through hole, a limit block installed inside the lower guide rail, a limit protrusion fixedly connected to both ends of the limit block, a rubber strip installed inside the limit block, flanges installed at both ends of the rubber strip, a second through hole opened on the inner wall of the flanges, a through groove opened at the right end of the lower guide rail, an extension block fixedly connected to the right end of the limit block, and two symmetrically arranged positioning blocks fixedly connected to the right end of the lower guide rail.

[0006] The above technical solution involves placing the adhesive strip inside the limiting block, with the flanges on both sides of the adhesive strip engaging with the limiting block. The limiting block is then embedded in the second through hole inside the flange, serving as a limiting element. Next, the limiting block is placed inside the lower guide rail. At this point, the extension block penetrates the lower guide rail through a through groove, positioning the limiting block and preventing positional deviations during assembly, thus facilitating subsequent installation and fixing. Finally, the limiting bolt is threadedly connected to the limiting protrusion to limit the flange, preventing the adhesive strip from moving up and down and avoiding it from detaching from the lower guide rail. This effectively reduces the risk of glass lifting malfunctions caused by the adhesive strip falling off.

[0007] As a further improvement to the above solution, the limiting bolt passes through the flange through the second through hole and is connected to the internal thread of the limiting protrusion.

[0008] With the above technical solution, when the limiting bolt is fixed to the limiting protrusion, the limiting block is fixed to the lower guide rail, thus preventing the limiting block from causing the rubber strip to slide laterally.

[0009] As a further improvement to the above scheme, the number of limiting bolts and limiting protrusions is four.

[0010] The above technical solution employs a symmetrical design with four sets of limiting bolts and limiting protrusions, which evenly distributes the fixing force at both ends of the lower guide rail and the limiting block. The four limiting points constrain the rubber strip, avoiding uneven force due to insufficient local fixing force, and effectively preventing the rubber strip from falling off due to loosening on one side.

[0011] As a further improvement to the above solution, the limiting protrusion is located inside the second through hole.

[0012] As a further improvement to the above solution, the flange is located at both ends of the limiting block.

[0013] Through the above technical solution, the flange design provides a reasonable carrier for the subsequent penetration of the limiting bolt, so that the limiting bolt can effectively fix the rubber strip through the flange.

[0014] As a further improvement to the above solution, the extension block passes through the lower guide rail via a through slot.

[0015] Through the above technical solution, after the extension block penetrates the through groove, the inner wall of the through groove can constrain the displacement of the extension block, restricting the movement of the limiting block in the lower guide rail, providing a precise position reference for the subsequent installation of fastening bolts, and preventing the limiting block from shifting position in the lower guide rail.

[0016] As a further improvement to the above solution, the inner walls of both the extension block and the positioning block are threaded with fastening bolts.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model incorporates a limiting bolt, a limiting block, and a limiting protrusion. Specifically, the rubber strip is placed inside the limiting block, with the flanges on both sides of the rubber strip engaging with the sides of the limiting block. The limiting block is then embedded into the second through hole inside the flange, serving as a limiting element. Next, the limiting block is placed inside the lower guide rail. At this point, the extension block penetrates the lower guide rail through a through groove, positioning the limiting block and preventing positional deviations during assembly, thus facilitating subsequent installation and fixation. Finally, the limiting bolt is threadedly connected to the limiting protrusion to limit the flange, preventing the rubber strip from moving up and down and avoiding it detaching from the lower guide rail. This effectively reduces the risk of glass lifting malfunctions caused by the rubber strip falling off.

[0018] This utility model incorporates a limiting bolt, a limiting block, a limiting protrusion, an extension block, a positioning block, and a fastening bolt. Specifically, when the rubber strip ages and needs to be replaced, the limiting bolt and fastening bolt are removed to release the fixing of the limiting block, allowing the rubber strip to be disassembled and replaced, thus facilitating subsequent maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This utility model Figure 2 Enlarged structural diagram of section B; Figure 5 This is a side view of the structure of this utility model.

[0020] Explanation of key symbols: 1. Lower guide rail; 2. Connecting ear; 3. First through hole; 4. Limiting bolt; 5. Limiting block; 6. Limiting protrusion; 7. Rubber strip; 8. Flanged edge; 9. Second through hole; 10. Through groove; 11. Extension block; 12. Positioning block; 13. Fastening bolt. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0022] Please combine Figure 1-5This embodiment of a door glass lower guide rail anti-detachment structure includes a lower guide rail 1. Two symmetrically arranged connecting ears 2 are fixedly connected to both ends of the lower guide rail 1. A first through hole 3 is provided at both ends of the lower guide rail 1. A limit bolt 4 is provided inside the first through hole 3. A limit block 5 is provided inside the lower guide rail 1. Limit protrusions 6 are fixedly connected to both ends of the limit block 5. A rubber strip 7 is provided inside the limit block 5. Flanges 8 are provided at both ends of the rubber strip 7. A second through hole 9 is provided on the inner wall of the flange 8. A through groove 10 is provided at the right end of the lower guide rail 1. An extension block 11 is fixedly connected to the right end of the limit block 5. Two symmetrically arranged connecting ears 11 are fixedly connected to the right end of the lower guide rail 1. The positioning block 12 is used to place the adhesive strip 7 inside the limiting block 5. The flanges 8 on both sides of the adhesive strip 7 are engaged with the two sides of the limiting block 5. The limiting block 5 is embedded in the second through hole 9 inside the flange 8 to play a limiting role. Then the limiting block 5 is placed inside the lower guide rail 1. At this time, the extension block 11 passes through the lower guide rail 1 through the through groove 10 to position the limiting block 5, avoid positional deviation during assembly, and facilitate subsequent installation and fixing. Then the limiting bolt 4 is threaded to the limiting protrusion 6 to limit the flange 8, prevent the adhesive strip 7 from moving up and down, and prevent the adhesive strip 7 from detaching from the interior of the lower guide rail 1, effectively reducing the risk of glass lifting failure caused by the adhesive strip 7 falling off.

[0023] The limiting bolt 4 passes through the second through hole 9 through the flange 8 and is connected to the internal thread of the limiting protrusion 6. When the limiting bolt 4 is connected to the limiting protrusion 6, it plays a preliminary role in fixing the limiting block 5.

[0024] There are four of each of the limiting bolts 4 and the limiting protrusions 6.

[0025] The limiting protrusion 6 is located inside the second through hole 9. When the limiting protrusion 6 passes through the second through hole 9, it can effectively prevent the flange 8 from moving up and down.

[0026] The flange 8 is located at both ends of the limiting block 5.

[0027] The extension block 11 passes through the lower guide rail 1 via the through slot 10.

[0028] Both the inner walls of the extension block 11 and the positioning block 12 are threaded with fastening bolts 13. The limit block 5 is fixed by the threaded connection between the fastening bolts 13 and the inner walls of the extension block 11 and the positioning block 12, which also facilitates the subsequent disassembly and replacement of the limit block 5.

[0029] The implementation principle of the anti-detachment structure of the lower guide rail rubber strip of the car door glass in this embodiment is as follows: During assembly, the rubber strip 7 is first placed inside the limiting block 5, and the flanges 8 on both sides of the rubber strip 7 are engaged with the two sides of the limiting block 5. The limiting block 5 is embedded in the second through hole 9 inside the flange 8 to play a limiting role. Then, the limiting block 5 is placed inside the lower guide rail 1. At this time, the extension block 11 passes through the lower guide rail 1 through the through groove 10 to position the limiting block 5, avoid positional deviation during assembly, and facilitate subsequent installation and fixing. Then, the limiting bolt 4 is threadedly connected to the limiting protrusion 6 to fix the flange 8. The limit bolt 4 prevents the rubber strip 7 from moving up and down and avoids it from detaching from the lower guide rail 1, effectively reducing the risk of glass lifting failure caused by the rubber strip 7 falling off. When the limit bolt 4 is connected to the limit protrusion 6, it plays a preliminary role in fixing the limit block 5. Then, the limit block 5 is fixed by the threaded connection between the fastening bolt 13 and the inner wall of the extension block 11 and the positioning block 12, improving the fixing effect. When the rubber strip 7 ages and needs to be replaced, the limit bolt 4 and the fastening bolt 13 are removed to release the fixation of the limit block 5. The limit block 5 can then be removed and the rubber strip 7 can be disassembled and replaced, which is convenient for subsequent maintenance.

[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A structure for preventing the rubber strip of the lower guide rail of a car door glass from detaching, characterized in that, The system includes a lower guide rail (1), with two symmetrically arranged connecting ears (2) fixedly connected to both ends of the lower guide rail (1). A first through hole (3) is provided at both ends of the lower guide rail (1). A limit bolt (4) is provided inside the first through hole (3). A limit block (5) is provided inside the lower guide rail (1). A limit protrusion (6) is fixedly connected to both ends of the limit block (5). A rubber strip (7) is provided inside the limit block (5). A flange (8) is provided at both ends of the rubber strip (7). A second through hole (9) is provided on the inner wall of the flange (8). A through groove (10) is provided at the right end of the lower guide rail (1). An extension block (11) is fixedly connected to the right end of the limit block (5). Two symmetrically arranged positioning blocks (12) are fixedly connected to the right end of the lower guide rail (1).

2. The anti-detachment structure for the lower guide rail rubber strip of the car door glass as described in claim 1, characterized in that: The limiting bolt (4) passes through the second through hole (9) through the flange (8) and is connected to the internal thread of the limiting protrusion (6).

3. The anti-detachment structure for the lower guide rail rubber strip of the car door glass as described in claim 2, characterized in that: The number of the limiting bolts (4) and the limiting protrusions (6) is four.

4. The anti-detachment structure for the lower guide rail rubber strip of the car door glass as described in claim 3, characterized in that: The limiting protrusion (6) is located inside the second through hole (9).

5. The anti-detachment structure for the lower guide rail rubber strip of the car door glass as described in claim 2, characterized in that: The flange (8) is located at both ends of the limiting block (5).

6. The anti-detachment structure for the lower guide rail rubber strip of the car door glass as described in claim 1, characterized in that: The extension block (11) passes through the lower guide rail (1) via the through groove (10).

7. The anti-detachment structure for the lower guide rail rubber strip of the car door glass as described in claim 1, characterized in that: The inner walls of the extension block (11) and the positioning block (12) are both threaded with fastening bolts (13).

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