Low-temperature-resistant anti-aging sealing strip

Abstract

The utility model discloses a low temperature resistant anti-aging sealing strip which comprises an annular sealing strip body and a protective cover, a first annular groove used for assembling glass is formed in the inner circumferential face of a first sealing strip, a protruding part is arranged on the first sealing strip, and a first clamping groove located on the upper portion of the protruding part and a second clamping groove located on the lower portion of the protruding part are formed in the protruding part. After the protecting cover is matched with the protruding part, one end of the protecting cover is bent and then inserted into the first clamping groove, the other end of the protecting cover is inserted into the first clamping groove, a second annular groove used for being matched with glass is further formed in the inner circumferential face of the first sealing strip, the second annular groove is communicated with the first annular groove, and the width of the second annular groove is smaller than that of the first annular groove. After the sealing strip is assembled with the triangular glass, the sealing performance can be ensured for a long time.

Description

Technical Field

[0001] The utility model relates to a sealing strip for automobiles, in particular to a low-temperature resistant and anti-aging sealing strip. Background Technique

[0002] The door and window sealing strip plays an important role in waterproofing, sealing and energy saving in doors and windows. The sealing strip is an essential accessory in door and window installation. Due to the limited service life of the door and window sealing strip, it is easy to be damaged and aged. In order to improve the service performance and effect of doors and windows, a self-adhesive door and window sealing strip needs to be used to stick to the original sealed position for reinforcement and sealing.

[0003] The sealing strip is usually made of rubber material, generally made of rubber materials with excellent aging resistance such as neoprene, ethylene propylene rubber, silicone rubber, natural-chloroprene-styrene butadiene blended rubber, rubber-plastic blended rubber, etc. The manufacturing methods include extrusion molding continuous vulcanization method, extrusion molding vulcanization tank vulcanization method or mold pressing vulcanization method. The rubber sealing strip consists of two parts: sealing and installation. Such products mainly use the elastic contact pressure generated by the lips, cavities, flanges and other parts in the body structure with the surface of the assembled coupling parts to play the roles of sealing and decoration. The rubber materials of automobile sealing strips include solid rubber, sponge rubber and hard rubber.

[0004] The rubber sealing strip at the rear triangular window of the existing automobile is exposed outside the vehicle body, and cracks will occur after long-term use, resulting in a decline in its sealing performance. In addition, for the assembly of the triangular glass and the sealing strip, the triangular glass is matched with the annular groove on the sealing strip. Since the automobile is a moving body, it will inevitably vibrate during driving. Therefore, under the action of vibration, a gap will be formed between the triangular glass and the sealing strip, thereby reducing the sealing performance. Content of the Utility Model

[0005] The utility model provides a low-temperature resistant and anti-aging sealing strip, and the sealing strip of the utility model can ensure the sealing performance for a long time after being assembled with the triangular glass.

[0006] The technical solutions for solving the above technical problems are as follows:

[0007] A low-temperature resistant and anti-aging sealing strip includes an annular sealing strip main body and a protective cover. A first annular groove for assembling glass is provided on the inner peripheral surface of the first sealing strip. The first sealing strip has a protruding part, and a first card slot located above the protruding part and a second card slot located below the protruding part are provided on the protruding part. After the protective cover is matched with the protruding part, one end of the protective cover is bent and inserted into the first card slot, and the other end of the protective cover is inserted into the first card slot. A second annular groove for cooperating with the glass is further provided on the inner peripheral surface of the first sealing strip. The second annular groove is communicated with the first annular groove, and the width of the second annular groove is smaller than the width of the first annular groove.

[0008] Further, a first lip is provided on the upper part of the protruding portion, and the first card slot is formed between the first lip and the protruding portion, and the first card slot is inclined obliquely upward; a second lip is provided on the lower part of the protruding portion, and the second card slot is formed between the second lip and the protruding portion, and the second card slot is inclined obliquely upward;

[0009] After one end of the protective cover is inserted into the first card slot, the protruding portion forms a support for one end of the protective cover. After the other end of the protective cover is inserted into the second card slot, the second lip forms a support for the other end of the protective cover.

[0010] Further, it further includes a retaining strip for being adhesively fixed to the inner surface of the glass. A glue storage groove is provided on the end surface of the retaining strip fixed to the inner surface of the glass, and an adhesive is arranged in the glue storage groove.

[0011] Further, the glue storage groove is in a T shape.

[0012] Further, it further includes positioning columns fixed to the inner surface of the glass. There are multiple positioning columns, and the retaining strip is sleeved on these positioning columns, and the positioning columns play a positioning role for the retaining strip.

[0013] After the second annular groove is added in the present utility model, after the second annular groove cooperates with the flange on the glass, the assembly of the glass and the sealing strip is more stable. During the driving of the vehicle, the vibration force generated will not cause a gap to form between the triangular glass and the sealing strip, thereby ensuring the sealing performance. Description of the Drawings

[0014] Figure 1 It is a structural diagram of the outer side after the low-temperature resistant and aging-resistant sealing strip is assembled with the glass.

[0015] Figure 2 It is a structural diagram of the inner side after the low-temperature resistant and aging-resistant sealing strip is assembled with the glass.

[0016] Figure 3 It is a sectional structure after the low-temperature resistant and aging-resistant sealing strip is assembled with the glass.

[0017] Figure 4 It is for Figure 3 The enlarged view of the P part in

[0018] Figure 5 It is a sectional structure diagram of the retaining strip.

[0019] Marks in the drawings:

[0020] Sealing strip main body 1, first annular groove 1a, protruding portion 1b, first card slot 1c, second card slot 1d, second annular groove 1e, first lip 1f, second lip 1g, bending portion 1h, protective cover 2, retaining strip 3, glue storage groove 3a, adhesive 3b, positioning column 4. Detailed Embodiment

[0021] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] As Figures 1 to 5 shown, the low-temperature resistant and anti-aging sealing strip of the present utility model includes an annular sealing strip main body 1 and a protective cover 2. A first annular groove 1a for assembling glass A is provided on the inner peripheral surface of the sealing strip main body 1. The shape of the sealing strip main body 1 is adapted to the shape of the triangular window. The sealing strip main body 1 has a protruding portion 1b. A first card slot 1c is provided on the protruding portion 1b above the protruding portion 1b and a second card slot 1d is provided below the protruding portion 1b. After the protective cover 2 is matched with the protruding portion 1b, one end of the protective cover 2 is bent and inserted into the first card slot 1c, and the other end of the protective cover 2 is inserted into the first card slot 1c.

[0023] In the present utility model, the contour shapes of components such as glass A, the protruding portion 1b, and the protective cover 2 are adapted to the shape of the triangular window. The sealing strip is matched with the frame at the triangular window opening. The protective cover 2 has its own adhesiveness and is adhesively fixed to the protruding portion 1b. The protective cover 2 protects the protruding portion 1b, thus preventing the protruding portion 1b from being exposed to the air. The materials of the sealing strip main body 1 and the protruding portion 1b are preferably rubber, and the rubber is preferably silicone rubber. Silicone rubber can still maintain elasticity at -60°C and can be used for a long time at 200°C. Silicone rubber has excellent weather resistance, ozone resistance, and ultraviolet radiation resistance, and will not crack after long-term use outdoors.

[0024] A second annular groove 1e for cooperating with glass A is further provided on the inner peripheral surface of the sealing strip main body 1. The second annular groove 1e communicates with the first annular groove 1a, and the width of the second annular groove 1e is smaller than the width of the first annular groove 1a. Glass A has a flange B, and the thickness of the flange B is smaller than the thickness of glass A. Glass A and the flange B are integrally formed, and the flange B is inserted into the second annular groove 1e. In this embodiment, the flange B and the second annular groove 1e are in interference fit, and glass A and the first annular groove 1a are in clearance fit. Glass A and the first annular groove 1a are fixed by an adhesive, and the adhesive can be epoxy glue.

[0025] After the second annular groove 1e is added in the present utility model, after the second annular groove 1e is matched with the flange B on glass A, the assembly of the glass and the sealing strip is more stable. The vibration force generated during the driving of the vehicle will not cause a gap to form between the triangular glass and the sealing strip, thus ensuring the sealing performance.

[0026] The upper part of the protruding portion 1b is provided with a first lip 1f, and the first card slot 1c is formed between the first lip 1f and the protruding portion 1b. The first card slot 1c is inclined obliquely upward; the lower part of the protruding portion 1b is provided with a second lip 1g, and the second card slot 1d is formed between the second lip 1g and the protruding portion 1b. The second card slot 1d is inclined obliquely upward; after one end of the protective cover 2 is inserted into the first card slot 1c, the protruding portion 1b forms a support for one end of the protective cover 2. After the other end of the protective cover 2 is inserted into the second card slot 1d, the second lip 1g forms a support for the other end of the protective cover 2.

[0027] Since the first card slot 1c is inclined obliquely upward and the second card slot 1d is inclined obliquely upward, after the protective cover 2 is combined with the first card slot 1c and the second card slot 1d, and is respectively supported by the protruding portion 1b and the second lip 1g, this structure can enable the protective cover 2 to be reliably combined with the protruding portion 1b and prevent the protective cover 2 from falling off.

[0028] One end of the sealing strip body 1 is bent to form a bent portion 1h. The bent portion 1h is flat and is matched with the window frame.

[0029] It further includes a retaining strip 3 for being adhesively fixed to the inner surface of the glass A. A glue storage groove 3a is provided on the end surface of the retaining strip 3 fixed to the inner surface of the glass A, and an adhesive 3b is arranged in the glue storage groove 3a. The contour of the retaining strip 3 is adapted to the contour of the triangular window, and the retaining strip 3 is in clearance fit with the sealing strip body 1.

[0030] In the present utility model, the adhesive 3b is injected into the glue storage groove 3a. After the retaining strip 3 is matched with the inner surface of the glass A, pressure is applied to the retaining strip 3 to cause the adhesive 3b in the glue storage groove 3a to overflow onto the inner surface of the glass A. When the adhesive is cured, since the surfaces of the glue storage groove 3a, the retaining strip 3, and the glass A all have the cured adhesive body, the combination of the retaining strip 3 and the glass A can be made more firm.

[0031] The glue storage groove 3a is in a T shape. After the adhesive is cured, the T-shaped glue storage groove 3a can make the combination of the adhesive body and the glue storage groove more firm.

[0032] It further includes positioning columns 4 fixed to the inner surface of the glass A. There are multiple positioning columns 4, and the retaining strip 3 is sleeved on these positioning columns 4. The positioning columns 4 play a positioning role for the retaining strip 3. The material of the positioning columns 4 can be rubber or plastic. The positioning columns 4 are adhesively fixed to the glass A through an adhesive. Epoxy glue is preferably used as the adhesive. The positioning columns 4 also play a supporting role for the retaining strip 3 to make the combination of the retaining strip 3 and the glass A stable.

[0033] Finally, it should be noted that the above-described embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, rather than limiting it, let alone limiting the protection scope of the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the protection scope of the claims.

Claims

1. A low-temperature resistant and anti-aging sealing strip, comprising an annular sealing strip body (1) and a protective cover (2). A first annular groove (1a) for assembling glass (A) is provided on the inner circumferential surface of the sealing strip body (1). The sealing strip body (1) has a protruding portion (1b). A first clamping groove (1c) located above the protruding portion (1b) and a second clamping groove (1d) located below the protruding portion (1b) are provided on the protruding portion (1b). After the protective cover (2) is fitted with the protruding portion (1b), one end of the protective cover (2) is bent and inserted into the first clamping groove (1c), and the other end of the protective cover (2) is inserted into the first clamping groove (1c). It is characterized in that, On the inner circumferential surface of the sealing strip body (1), there is also provided a second annular groove (1e) for cooperating with the glass (A). The second annular groove (1e) communicates with the first annular groove (1a), and the width of the second annular groove (1e) is smaller than the width of the first annular groove (1a).

2. The low-temperature resistant and anti-aging sealing strip according to claim 1, characterized in that, On the upper part of the protruding portion (1b), there is a first lip (1f). Between the first lip (1f) and the protruding portion (1b), the first clamping groove (1c) is formed, and the first clamping groove (1c) is inclined obliquely upward; on the lower part of the protruding portion (1b), there is a second lip (1g). Between the second lip (1g) and the protruding portion (1b), the second clamping groove (1d) is formed, and the second clamping groove (1d) is inclined obliquely upward; After one end of the protective cover (2) is inserted into the first clamping groove (1c), the protruding portion (1b) forms a support for one end of the protective cover (2). After the other end of the protective cover (2) is inserted into the second clamping groove (1d), the second lip (1g) forms a support for the other end of the protective cover (2).

3. A low-temperature resistant and anti-aging sealing strip according to claim 1, characterized in that, It further includes a strip (3) for being adhesively fixed to the inner surface of the glass (A). On the end surface of the strip (3) fixed to the inner surface of the glass (A), there is a glue storage groove (3a), and an adhesive (3b) is arranged in the glue storage groove (3a).

4. The low-temperature resistant and anti-aging sealing strip according to claim 3, characterized in that, The glue storage groove (3a) is in a T shape.

5. The low-temperature resistant and anti-aging sealing strip according to claim 3, characterized in that, It further includes positioning posts (4) fixed to the inner surface of the glass (A). There are multiple positioning posts (4), and the strip (3) is sleeved on these positioning posts (4), and the positioning posts (4) play a positioning role for the strip (3).

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