CN205185817U - Waterproof sealing structure and vehicle of vehicle threshold - Google Patents

Abstract

The utility model provides a waterproof sealing structure for a vehicle sill. The vehicle sill includes a sill reinforcement plate and a sill inner panel. The bottom edge of the reinforcement plate is welded to the bottom edge of the inner panel to form the bottom edge of the sill. It is characterized in that the bottom edge of the threshold is provided with at least one waterproof sealing structure, and the The waterproof sealing structure also includes a rubber strip, a first groove structure extending along the front-rear direction of the vehicle arranged on the lower seam edge of the reinforcement plate, and a first groove structure extending along the front-rear direction of the vehicle arranged on the lower seam edge of the inner panel. The second groove structure, the first groove structure and the second groove structure are arranged opposite to form a housing cavity, the rubber strip is pressed into the housing cavity, and the rubber strip is heated to fill and seal the Accommodating cavity. Through the waterproof sealing structure, the waterproof sealing function of the vehicle door sill is well realized.

Description

Waterproof sealing structure of vehicle door sill and vehicle

technical field

The utility model relates to the field of waterproof sealing of vehicles, in particular to a waterproof sealing structure of a vehicle threshold.

Background technique

At present, the wading depth of SUV models is increasing year by year. How to achieve the sealing and waterproofing of the body, so as to slow down the water ingress speed of the passenger compartment when the car is wading, has become a challenge. During the entire body wading process, external water can easily enter the interior of the vehicle (such as the cab) from each welding point of the body sheet metal (especially the threshold that first contacts with external water), so the sealing of the bottom edge of the vehicle threshold The waterproof performance greatly affects the wading depth and wading time of the vehicle.

The bottom seam edge of the existing vehicle threshold is all welded by several layers of sheet metal. Usually, the bottom seam edge of the threshold is basically not treated with other waterproof treatment, or only waterproofed by coating sealant. This glue-coating and waterproofing method has a poor waterproofing effect, and it is difficult to improve the wading performance of the vehicle.

Utility model content

The purpose of the utility model is to provide a waterproof sealing structure of a vehicle threshold with good waterproof effect.

Another object of the present utility model is to provide a vehicle.

In order to achieve the above object, according to one aspect of the present utility model, a waterproof sealing structure for a vehicle threshold is provided, the vehicle threshold includes a threshold reinforcement plate and a threshold inner panel, the threshold reinforcement plate has a bottom edge of the reinforcement plate, the The inner panel of the threshold has a lower seam edge of the inner panel, and the lower seam edge of the reinforcement plate is fixedly connected with the lower seam edge of the inner panel to form the lower seam edge of the threshold, wherein the lower seam edge of the threshold is provided with at least A waterproof sealing structure, the waterproof sealing structure also includes a rubber strip, a first groove structure arranged on the lower edge of the reinforcing plate and extending along the front and rear direction of the vehicle, and a groove structure arranged on the lower edge of the inner panel A second groove structure extending along the front-rear direction of the vehicle, the first groove structure and the second groove structure are arranged opposite to form a housing cavity, the rubber strip is pressed into the housing cavity, and the rubber strip passes through The cavity is filled and sealed after heating.

Preferably, the rubber strip is polyurethane foam material.

Preferably, the concave portion of the first groove structure and the concave portion of the second groove structure are oppositely arranged to form a substantially columnar accommodation cavity.

Preferably, the accommodating cavity is arranged between two rows of adjacent fixing points on the bottom edge of the door sill.

Preferably, the accommodating cavity is arranged above the bottom row of fixing points on the bottom edge of the door sill.

Preferably, the rubber strip is pressed tightly in the accommodating cavity before the door sill reinforcement plate is fixedly connected to the door sill inner panel.

Preferably, at least two spaced accommodating cavities are provided on the bottom edge of the door sill along the vertical direction of the vehicle.

Preferably, the at least two accommodating cavities are arranged above the bottom row of fixing points on the bottom edge of the door sill.

Preferably, the two adjacent accommodating cavities are separated by at least one row of fixing points on the lower bezel edge of the door sill.

Preferably, a sealant is coated between the welding surface of the lower seam edge of the reinforcing plate and the welding surface of the lower seam edge of the inner plate.

According to another aspect of the present utility model, a vehicle is provided, including the above-mentioned waterproof sealing structure for a vehicle door sill.

In the waterproof sealing structure of the vehicle door sill of the utility model, at least one waterproof sealing structure is arranged on the bottom edge of the door sill. The first groove structure extending along the front-rear direction of the vehicle and the second groove structure extending along the front-rear direction of the vehicle provided on the lower edge of the inner panel, the first groove structure and the second groove structure The rubber strips are arranged oppositely to form a housing chamber, the rubber strips are pressed into the housing chambers, and the rubber strips are heated to fill and seal the housing chambers. Since the waterproof sealing structure runs through the bottom edge of the entire door sill, and with the filling and sealing effect of the rubber strip, the waterproof sealing effect of the vehicle door sill can be well realized.

Other features and advantages of the present utility model will be described in detail in the following specific embodiments.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, together with the following specific embodiments, are used to explain the utility model, but do not constitute a limitation to the utility model.

Fig. 1 is a schematic cross-sectional view of a waterproof sealing structure for a vehicle door sill before welding according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a waterproof sealing structure of a vehicle door sill after welding according to an embodiment of the present invention.

Fig. 3 is another schematic cross-sectional view of a waterproof sealing structure of a door sill of a vehicle after welding according to an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of a waterproof sealing structure for a vehicle door sill before welding according to another embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a waterproof sealing structure of a vehicle door sill after welding according to another embodiment of the present invention.

detailed description

The specific embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1-5, the utility model discloses a waterproof sealing structure for a vehicle threshold, the vehicle threshold 100 includes a threshold reinforcement plate 1 and a threshold inner panel 2, and the threshold reinforcement plate 1 has a lower stop of the reinforcement plate Side 10, the threshold inner panel 2 has an inner panel bottom seam edge 20, the reinforcement panel bottom seam edge 10 and the inner panel bottom seam edge 20 are fixedly connected to form a threshold bottom seam edge 3, Wherein, the bottom edge 3 of the door sill is provided with at least one waterproof sealing structure 4, and the waterproof sealing structure 4 also includes a rubber strip 5, a rubber strip 5 provided on the bottom edge 10 of the reinforcing plate and extending along the front and rear direction of the vehicle. The first groove structure 11 and the second groove structure 21 extending along the front-rear direction of the vehicle provided on the lower edge 20 of the inner panel, the first groove structure 11 and the second groove structure 21 are arranged opposite to each other To form a housing chamber 40 , the rubber strip 5 is pressed into the housing chamber 40 , and the rubber strip 5 fills and seals the housing chamber 40 after being heated.

Specifically, the bottom seam edge 10 of the reinforcement plate is fixedly connected with the bottom seam edge 20 of the inner panel to form the bottom seam edge of the sill, and the fixed connection method makes the bottom seam edge 10 of the reinforcement plate and the bottom seam edge 20 of the inner panel The lower seam edge 20 of the inner plate is formed with a fixed point 6. In this embodiment, the fixed connection method is a welding connection, such as a welding connection using spot welding; the fixed point 6 is a welding connection Formed solder joints 6. The opposite inner surfaces of the lower seam edge 10 of the reinforcing plate and the lower seam edge 20 of the inner plate are respectively welding surfaces (that is, contact surfaces), and the first groove structure 11 and the second groove structure 21 They are also arranged oppositely, that is, the first groove structure 11 and the second groove structure 21 are respectively formed on the inner surfaces of the bottom edge of the reinforcing plate 10 and the bottom edge of the inner plate 20 . The first groove structure 11 and the second groove structure 21 may be formed by stamping.

As shown in Figures 1-5, the concave portion of the first groove structure 11 and the concave portion of the second groove structure 12 are arranged oppositely to form a roughly columnar accommodation chamber 40, which can be understood as A roughly columnar cavity structure extending in the front-to-back direction. As shown in Fig. 2, 3 and Fig. 5, the accommodating cavity 40 is arranged on the bottom edge 3 of the threshold where spot welding is required. Generally, at least one row of spot welding will be carried out on the bottom edge 3 of the threshold. Welding operation, and the shape of the accommodation cavity 40 makes it necessary to avoid the location of the welding spot 6 from the accommodation cavity, therefore, as shown in Figure 3, the accommodation cavity 40 can be arranged on the upper and lower sides of the lower lip 3 of the door sill above the bottom row of welding spots 6 in the direction; of course, as shown in FIG. In this embodiment, the accommodating cavity 40 is arranged between two adjacent rows of welding points 6, so that this structure can make the accommodating cavity 40 more firm, and because the lower edge 10 of the reinforcement plate and the The sealing glue 7 is coated between the welding surfaces of the lower seam edge 20 of the inner panel, so the sealing performance of the accommodation cavity 40 is increased.

The rubber strip 5 is pressed tightly in the accommodating cavity 40 before the door sill reinforcement plate 1 and the door sill inner panel 2 are welded. At the same time, the rubber strip 5 is a polyurethane foam material, and the polyurethane foam material has the property of expanding and being permanently deformed after being heated. The lower edge 3 of the sill needs to be painted and baked after the welding operation is completed. Therefore, during this process, the rubber strip 5 expands and foams in the containing cavity 40 to completely fill the containing cavity. cavity 40 , and after expansion and foaming, it will be very firmly adhered to the concave portion of the first groove structure 11 and the sheet metal surface of the second groove structure 12 . In the present application, through the design of the concave portion of the first groove structure 11 and the second groove structure 12 for accommodating the rubber strip 5 of the polyurethane foam material and the joint action of the rubber strip 5 of the polyurethane foam material, A very reliable waterproof sealing structure 4 is formed.

As shown in Figures 4-5, in order to meet higher requirements for the waterproof sealing of the door sill bottom edge 3, of course, at least two intervals may be provided on the door sill bottom edge 3 along the vertical direction of the vehicle. Open waterproof sealing structure 4, and, as shown in Figure 5, the at least two accommodating cavities 40 can be arranged above the bottom row of welding spots 6 on the bottom edge of the door sill 3; of course, the Two adjacent waterproof sealing structures 4 can also be spaced apart by at least one row of welding spots 6 on the lower edge 3 of the threshold. In this embodiment, the two adjacent waterproof sealing structures 4 pass through a row of the threshold The welding spots 6 of the lower seam edge 3 are spaced apart, so that each accommodation chamber 40 is relatively independent, and its structure is relatively firm, and the sealing performance between adjacent accommodation chambers is relatively high. In the embodiment of the present application, two spaced apart waterproof sealing structures 4 are provided on the lower lip 3 of the door sill, so as to realize double waterproof sealing.

In the embodiment of the present application, as shown in Figures 1-5, before welding the door sill reinforcement plate 1 and the door sill inner plate 2, the rubber strips 5 are respectively preset in the accommodating cavity 40, and then Weld the door sill reinforcement plate 1 and the door sill inner plate 2; after the welding operation is completed, the adhesive strip 5 will expand and fill the accommodating cavity 40 when heated, and adhere to the first The concave portion of the groove structure 11 and the sheet metal surface of the second groove structure 12 are used to seal the dense cavity 40 .

After the vehicle sill with the waterproof sealing structure 4 of the present invention is waded or immersed in water, water may enter the gap between the sill reinforcement plate 1 and the sill inner plate 2 due to the poor sealing and waterproof effect of the spot welding sealant. When encountering the waterproof sealing structure 4 of the present application, due to the effect of the expanded rubber strip 5, it can very effectively prevent water from continuing to penetrate or immerse into the car, and play a very good waterproof sealing effect.

The utility model also provides a vehicle, including the above-mentioned waterproof and sealing structure of the vehicle door sill. Since the vehicle adopts the above-mentioned waterproof sealing structure, when the threshold of the vehicle is wading or immersed in water, water may enter the threshold reinforcement plate 1 and the threshold inner panel 2 due to the poor sealing and waterproof effect of the spot welding sealant. In the gap, when encountering the waterproof sealing structure 4 of the present application, due to the effect of the expanded rubber strip 5, it can very effectively prevent water from continuing to penetrate or immerse in the car, and play a very good waterproof sealing effect.

The preferred embodiment of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the specific details of the above-mentioned embodiment, and within the scope of the technical concept of the utility model, the technical solution of the utility model can be carried out in many ways. These simple modifications all belong to the protection scope of the present utility model. It can be understood that the waterproof sealing structure of the present invention can be applied to other sealing structures that require waterproofing.

In addition, it should be noted that the various specific technical features described in the above specific implementation manners may be combined in any suitable manner if there is no contradiction. In order to avoid unnecessary repetition, the utility model will not further describe various possible combinations.

In addition, any combination of various implementations of the present invention can also be made, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Claims (11)

1. the waterproof sealing structure of a vehicle threshold, described vehicle threshold comprises threshold brace panel and threshold internal plate, described threshold brace panel has seam limit under brace panel, described threshold internal plate has seam limit under inner panel, under described brace panel, under seam limit and described inner panel, seam limit is fixedly connected to form seam limit under threshold, it is characterized in that, under described threshold, seam limit is provided with at least one waterproof sealing structure, described waterproof sealing structure also comprises adhesive tape, be arranged on the first groove structure that the fore-and-aft direction along vehicle on seam limit extends under described brace panel and the second groove structure that under being arranged on described inner panel, the fore-and-aft direction along vehicle on seam limit extends, described first groove structure and the second groove structure are oppositely arranged to form container cavity, described adhesive tape is pressed in this container cavity, described adhesive tape is by filling and seal described container cavity after heating.

2. the waterproof sealing structure of a kind of vehicle threshold according to claim 1, is characterized in that: described adhesive tape is polyurethanes expanded material.

3. the waterproof sealing structure of a kind of vehicle threshold according to claim 1, is characterized in that: the recess of described first groove structure and the recess of the second groove structure are oppositely arranged the container cavity of formation roughly in column.

4. the waterproof sealing structure of a kind of vehicle threshold according to claim 1, is characterized in that: described container cavity is arranged between two row's attachment points adjacent one another are on seam limit under threshold.

5. the waterproof sealing structure of a kind of vehicle threshold according to claim 1, is characterized in that: described container cavity is arranged on the top of the next row attachment point of the most end on seam limit under threshold.

6. the waterproof sealing structure of a kind of vehicle threshold according to claim 1, is characterized in that: described adhesive tape is pressed in described container cavity before described threshold brace panel is fixedly connected with described threshold internal plate.

7. the waterproof sealing structure of a kind of vehicle threshold according to claim 1, is characterized in that: seam limit along vehicle above-below direction being provided with at least two isolated container cavities under described threshold.

8. the waterproof sealing structure of a kind of vehicle threshold according to claim 7, is characterized in that: at least two described container cavities are arranged on the top of the next row attachment point of the most end on seam limit under described threshold.

9. the waterproof sealing structure of a kind of vehicle threshold according to claim 8, is characterized in that: described adjacent two container cavities are spaced apart by the attachment point on seam limit under the described threshold of at least one row.

10. the waterproof sealing structure of a kind of vehicle threshold according to claim 1, is characterized in that: under described brace panel under the face of weld on seam limit and described inner panel seam limit contact surface between be coated with sealant.

11. 1 kinds of vehicles, is characterized in that: the waterproof sealing structure comprising the vehicle threshold as described in any one of claim 1-10.