CN218505635U - Multi-bubble tube sealing strip for automobile door frame - Google Patents

Abstract

The utility model discloses a multi-bubble tube sealing strip for an automobile door frame. The first bubble tube and the second bubble tube of the sealing strip are both arranged above a clamping part, and the sealing lip is arranged under the clamping part. The second bubble tube is arranged on one side of the first bubble tube. The lower part of the second bubble tube shares a section of the bubble tube wall with the lower part of the first bubble tube. There is an exhaust hole on the shared bubble tube wall. There are telescoping sections. A third bubble tube is also provided on the other side of the first bubble tube. A buffer pad is fixed on the upper and lower inner surfaces of the U-shaped groove of the clamping part, and a plurality of clamping blocks are fixed on the buffer pad, and a sealing sponge is arranged at the bottom of the U-shaped groove of the clamping part. A sealing block with a circular cross-section is wrapped around the tail of the sealing lip, and a magnetic strip is also built in the tail. The sealing effect of the sealing strip has been greatly improved, and the bubble tube is not easy to be excessively deformed under the action of a large door closing force; and there is no need to additionally arrange a sealing structure at the notch of the clamping part to improve the sealing performance; and The sealing lip of the sealing strip has sealing reliability.

Description

Multi-bubble tube sealing strip for automobile door frame

technical field

The utility model relates to the technical field of automobile parts, in particular to a multi-bubble tube sealing strip for an automobile door frame.

Background technique

Sealing strips are mainly used in gaps that need to be sealed, such as doors, windows, and compartment covers of automobiles. In addition to sealing, they can prevent harmful substances such as wind, sand, rain, and dust from entering the interior and exterior of the car, and also play a role in shock absorption, sound insulation, and decoration. The function is to improve the working life of the auto parts and the comfort of the car. At the same time, the door sealing strip provides an appropriate closing force and improves the closing feel and sound quality.

Most of the existing sealing strips for automobile door frames are single-bubble tubes. The single-bubble tubes not only play a role in sealing, but also play a role in buffering and supporting. Permanent deformation occurs, loss of elasticity. If multiple bubble tubes with the same structure are repeatedly provided, a greater door closing force is required to squeeze the bubble tubes of the sealing strip, and in severe cases, the door cannot be tightly closed.

The existing sealing lip is in contact with the sheet metal surface by elastic force. After the sealing lip ages and loses elasticity, it will be suspended, and there is a gap between the sealing lip and the sheet metal, resulting in sealing failure.

In addition to the bubble tube and the sealing lip, the sealing problem at the mouth of the clamping part is often ignored. The U-shaped groove of the clamping part is often clamped by clamping teeth or barbed structures. Although there are good The anti-slip effect is good, but the sealing effect is average. It is often necessary to set an additional sealing structure at the U-shaped notch of the clamping part to enhance the sealing effect. The sealing structure is generally a single-structure sealing edge, which needs to be effectively bonded to the door frame sheet metal. Only when the sealing effect can be realized, the reliability and applicability are poor.

Utility model content

Based on the above content, the utility model discloses a multi-bubble tube sealing strip for an automobile door frame, including a clamping piece, a first bubble tube, a second bubble tube and a sealing lip, the first bubble tube and the second bubble tube Both are arranged above the clamping piece, and the sealing lip is connected to the bottom of the clamping piece;

The second bubble tube is arranged on one side of the first bubble tube, the size of the second bubble tube is smaller than that of the first bubble tube, the lower part of the second bubble tube shares a section of the wall of the first bubble tube, and the shared bubble tube There are vent holes on the wall, and a telescopic section is arranged on the outermost side of the second bubble tube, and the telescopic section is formed by the folded wall of the bubble tube, so that the second bubble tube has room for inflation and stretching. When the car door is closed, the first bubble tube is squeezed by the door sheet metal, and the internal gas enters the second bubble tube through the vent hole to prop up the second bubble tube. At this time, the second bubble tube can contact the door sheet metal , play the role of auxiliary support, and form a sealed structure together with the first bubble tube.

Preferably, a third bubble tube is also provided on the other side of the first bubble tube, and the third bubble tube has the same structure as the second bubble tube, and its lower part also shares one end of the bubble tube wall with the lower part of the first bubble tube, and the shared bubble tube The pipe wall is also provided with vent holes, and the third bubble pipe can further enhance the sealing effect and supporting effect of the sealing strip under the action of the same principle.

Further, a buffer pad is fixed on the upper and lower inner surfaces of the U-shaped groove of the clamping member, and a plurality of clamping blocks are fixed on the buffer pad. The cross section of the clamping block is semicircular and made of EPDM sponge rubber. . The more common rack is used for clamping. Under the action of pressure, the semicircular clamping block can achieve the maximum fit with the door frame support sheet metal. The buffer pad can enhance the clamping force of the clamping block and also play a role The function of vibration buffer keeps the clamping block and the supporting sheet metal in close contact.

Preferably, the clamping part has a built-in reinforcing rib, and the reinforcing rib is a steel bar or a reinforced fiber skeleton, which can increase the clamping force of the clamping part, and the bottom of the U-shaped groove of the clamping part is also provided with a sealing sponge or sealing Glue or rubber pad, after the clamping part is completely installed on the door frame, the sealing sponge or sealant or rubber pad can form a seal after being in contact with the seam of the door frame supporting sheet metal, and the sealant is self-adhesive.

Further, the tail of the sealing lip is wrapped with a sealing block with a circular cross-section, the sealing block is made of EPDM sponge rubber, and the sealing block with a circular cross-section can contact the door frame sheet metal at multiple angles. Under the action of force, it is extruded and fitted to the door frame sheet metal. The tail of the sealing lip also has a built-in magnetic strip. Under the magnetic attraction of the magnetic strip to the metal sheet metal, the sealing block can always keep in contact with the door frame sheet metal. Avoid overhangs.

Through the above technical scheme, the beneficial effects of the utility model are:

The multi-bubble tube sealing strip for the automobile door frame is provided with a second bubble tube and a third bubble tube in addition to the first bubble tube to play the role of buffering and sealing, which play the role of auxiliary sealing and auxiliary support , so that the sealing effect has been greatly improved, and the bubble tube is not easy to be excessively deformed under the action of a large door closing force.

The clamping part of the sealing strip uses a buffer pad and a clamping block with a semicircular cross-section. Compared with other clamping parts that use clamping teeth or barb-shaped structures to achieve clamping, the sealing effect is better, and no additional clamping is required. The notch of the holder is provided with a sealing structure to improve the sealing performance.

The sealing lip of the sealing strip passes through the built-in magnetic strip at the tail, and under the magnetic force of the magnetic strip on the metal sheet metal, the sealing block wrapped at the tail can always be kept in contact with the door frame sheet metal, which improves the reliability of the seal.

Description of drawings

Fig. 1 is the structural representation of a kind of automobile door frame with multi-bubble tube sealing strip described in the application;

Explanation of reference signs: 1 first bubble tube, 101 exhaust hole, 2 second bubble tube, 201 telescopic section, 3 third bubble tube, 4 clamping piece, 401 buffer pad, 402 clamping block, 403 reinforcing rib, 404 sealing sponge, 5 sealing lip, 501 sealing block, 502 magnetic strip.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. The orientation or positional relationship indicated by "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device or element It must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the drawings are for illustrative purposes only, and should not be understood as limitations on this patent. Understand the specific meaning of the above terms in specific situations.

In the description of the utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "set with", "connected", etc. should be understood in a broad sense, such as "connected", which can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Referring to Fig. 1, a multi-bubble tube sealing strip for an automobile door frame includes a clamping member 4, a sealing lip 5, a first bubble tube 1, a second bubble tube 2 and a third bubble tube 3, the first bubble tube 1. The second bubble tube 2 and the third bubble tube 3 are both arranged above the clamping member 4, and the second bubble tube 2 and the third bubble tube 3 are respectively arranged on both sides of the first bubble tube 1; the sealing lip 5 is located below the holder 4.

The size of the second bubble tube 2 is smaller than that of the first bubble tube 1, and the bottom of the second bubble tube 2 shares a section of the bubble tube wall with the bottom of the first bubble tube 1, and an air vent 101 is arranged on the shared bubble tube wall, so that The outermost side of the second bubble tube 2 is provided with a telescopic section 201, the telescopic section 201 is formed by the folded bubble tube wall, and the telescopic section 201 makes the second bubble tube 2 have room for inflation and stretching. The structure of the third bubble tube 3 is the same as that of the second bubble tube 2 , which will not be repeated here. When the car door is closed, the first bubble tube 1 is squeezed by the door sheet metal, and the internal gas enters the second bubble tube 2 and the third bubble tube 3 through the vent hole 101, and the second bubble tube 2 and the third bubble tube 3 When propped up, the second bubble tube 2 and the third bubble tube 3 can be in contact with the door sheet metal to play an auxiliary supporting role, and form a sealing structure together with the first bubble tube 1 .

A buffer pad 401 is respectively fixed on the upper and lower inner surfaces of the U-shaped groove of the clamping member 4, and a plurality of clamping blocks 402 are fixed on the buffer pad 401. The cross section of the clamping block 402 is semicircular, and is made of EPDM Made of sponge rubber. The more commonly used racks are used for clamping. The semicircular clamping block 402 can achieve maximum fit with the door frame supporting sheet metal under pressure; the buffer pad 401 can enhance the clamping force of the clamping block 402, It can also play the role of vibration buffer, so that the clamping block 402 and the supporting sheet metal are always in close contact.

The clamping part 4 has a built-in reinforcing rib 403, and the reinforcing rib 403 is a steel bar, which can increase the clamping strength of the clamping part 4. The bottom of the U-shaped groove of the clamping part 4 is also provided with a sealing sponge 404, which can hold After the part 4 is fully mounted on the door frame, the sealing sponge 404 can form a seal after being in contact with the notch of the door frame supporting sheet metal.

The tail of the sealing lip 5 is wrapped with a sealing block 501 with a circular cross section, the sealing block 501 is made of EPDM sponge rubber, and the sealing block 501 with a circular cross section can contact the door frame sheet metal at multiple angles, and Under the action of force, it is extruded and attached to the door frame sheet metal. The tail portion of the sealing lip 5 also has a built-in magnetic strip 502. Under the magnetic attraction effect of the magnetic strip 502 on the metal sheet metal, the sealing block 501 can always be attached to the door frame sheet metal to avoid suspension.

The working principle of the above-mentioned multi-bubble tube sealing strip for the automobile door frame is as follows:

Insert the support plate of the door frame into the U-shaped groove of the clamping piece 4, and install the sealing strip on the door frame. At this time, a plurality of clamping blocks 402 with a semicircular cross-section are squeezed by the door frame support sheet metal and bonded with it to form a seal. The sealing sponge 404 provided at the bottom of the door frame support sheet metal and the U-shaped groove The contact forms a seal, and the sealing block 501 wrapped at the end of the sealing lip 5 adheres to the door frame sheet metal to form a seal under the action of magnetic attraction.

When the car door is closed, the first bubble tube 1 is compressed and squeezed by the door sheet metal, and the internal gas enters the second bubble tube 2 and the third bubble tube 3 through the exhaust hole 101, and the second bubble tube 2 and the third bubble tube 3 Hold up and make contact with the door sheet metal. At this time, the three bubble tubes jointly support the door sheet metal and bond with the door sheet metal to form a seal.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (5)

1. The utility model provides a car door frame is with many bubble pipe sealing strip which characterized in that: the device comprises a clamping piece (4), a first bubble tube (1), a second bubble tube (2) and a sealing lip edge (5), wherein the first bubble tube (1) and the second bubble tube (2) are arranged above the clamping piece (4), and the sealing lip edge (5) is arranged below the clamping piece (4);

one side of first bubble pipe (1) is located in second bubble pipe (2), and second bubble pipe (2) size is less than first bubble pipe (1), and second bubble pipe (2) lower part and first bubble pipe (1) lower part share one section bubble pipe wall, and it has exhaust hole (101) to open on the shared bubble pipe wall, second bubble pipe (2) outside is equipped with flexible section (201).

2. The multi-bubble tube sealing strip for the automobile door frame according to claim 1, characterized in that: the other side of the first bubble tube (1) is also provided with a third bubble tube (3), the third bubble tube (3) has the same structure as the second bubble tube (2), the lower part of the third bubble tube (3) shares one end with the lower part of the first bubble tube (1) to form a bubble tube wall, and the shared bubble tube wall is also provided with an exhaust hole.

3. The multi-bubble tube sealing strip for the automobile door frame according to claim 1, characterized in that: a buffer pad (401) is fixed on each of the upper inner surface and the lower inner surface of the U-shaped groove of the clamping piece (4), a plurality of clamping blocks (402) are fixed on the buffer pads (401), and the cross sections of the clamping blocks (402) are semicircular.

4. The multi-bubble tube sealing strip for the automobile door frame according to claim 3, wherein: a reinforcing rib (403) is arranged in the clamping piece (4), and the reinforcing rib (403) is a steel bar or a reinforced fiber framework; the bottom of the U-shaped groove of the clamping piece (4) is also provided with a sealing sponge (404) or sealant or rubber pad.

5. The weather strip for the automobile door frame according to any one of claims 1 to 4, wherein: the tail part of the sealing lip edge (5) is wrapped with a sealing block (501) with a circular section, and the tail part of the sealing lip edge (5) is also internally provided with a magnetic strip (502).

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