A hidden type of recreational vehicle expansion box air bag sealing device

By using a concealed airbag sealing device in the RV and controlling the inflation and deflation of the airbag with a solenoid valve, the problems of external leakage of the sealing strip affecting aesthetics and poor sealing performance are solved, achieving the effects of aesthetics, good sealing performance and long service life.

CN224392468UActive Publication Date: 2026-06-23FIVE STAR (SHANXI) RV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FIVE STAR (SHANXI) RV CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing RV sealing devices have exposed sealing strips, which affects aesthetics and results in poor sealing performance.

Method used

The system employs a concealed airbag sealing device for the RV's expandable body. The airbag is hidden between the expandable body and the side panel of the vehicle body, and the inflation and deflation of the airbag are controlled by a solenoid valve to reduce friction and maintain sealing performance.

Benefits of technology

It achieves a flush fit between the expansion box and the vehicle body, resulting in an aesthetically pleasing appearance, excellent sealing performance, reduced friction, extended service life, and a clean interior environment even in windy and rainy weather.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224392468U_ABST
    Figure CN224392468U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of hidden motor home expansion box body air bag sealing devices, including side wall structure frame, fixed sealing groove, fixed clamping strip, sealing air bag, solenoid valve, gas source, inflation conduit and air bag conduit, it is characterized in that, the fixed sealing groove is provided on the side wall structure frame, the sealing air bag is provided in the fixed sealing groove, the solenoid valve and the gas source are placed in vehicle body, the gas source is connected by the inflation conduit and the solenoid valve, the solenoid valve is connected by air bag conduit and the sealing air bag, when needing sealing, solenoid valve controls gas source to fill sealing air bag with gas by inflation conduit, sealing air bag expands and seals expansion box body and vehicle body.The device is hidden between expansion box body and vehicle body side wall, cannot be seen outside vehicle body, expansion box body is flush with vehicle body, appearance is beautiful, and sealing performance is good.
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Description

Technical Field

[0001] This utility model relates to an airbag sealing device, and more particularly to a concealed RV expansion box airbag sealing device, belonging to the field of RV sealing. Background Technology

[0002] Most existing RV sealing devices use sealing strips that are pressed together for sealing. These sealing strips are exposed and not flush with the vehicle body, which affects the aesthetics and results in poor sealing performance.

[0003] The purpose of this utility model is to provide a hidden airbag sealing device for the expandable RV body. The sealing device is hidden between the expandable body and the side wall of the vehicle body and cannot be seen from the outside of the vehicle body. The expandable body that needs to be sealed is flush with the vehicle body, with an aesthetically pleasing appearance and good sealing performance. Utility Model Content

[0004] This application provides a concealed RV expandable box airbag sealing device, which adopts the following technical solution:

[0005] A concealed RV expandable box airbag sealing device includes a side frame structure, a fixed sealing groove, a fixing strip, a sealing airbag, a solenoid valve, an air source, an inflation conduit, and an airbag conduit. The fixed sealing groove is provided on the side frame structure, and the sealing airbag is disposed within the fixed sealing groove. The solenoid valve and the air source are placed inside the vehicle body. The air source is connected to the solenoid valve via the inflation conduit, and the solenoid valve is connected to the sealing airbag via the airbag conduit.

[0006] By adopting the above technical solution, when the expandable box needs to be slid out, the solenoid valve controls the gas in the sealing airbag to be released, which can reduce the friction between the expandable box and the side frame structure during the sliding process and extend the service life of the RV. When the expandable box is finished sliding out, the solenoid valve controls the air source to fill the sealing airbag with gas through the inflation duct. The airbag expands and seals the expandable box and the vehicle body, which is not affected by the external environment.

[0007] Preferably, scraper sealing strips are also provided on both sides of the fixed sealing groove.

[0008] Preferably, the fixed sealing groove has fixed retaining strips on both sides of its lower interior, which are used to fix the airbag sealing strips; the upper ends of both sides of the fixed sealing groove serve as retaining strips for the scraper sealing strips.

[0009] By adopting the above technical solution, if the exterior of the expandable box gets covered with trash during windy or rainy weather while it is being used, the scraper sealing strip can remove the trash during the retraction process, keeping the interior of the vehicle clean.

[0010] In summary, this application includes at least one of the following beneficial technical effects:

[0011] 1. The hidden airbag sealing device of this RV expansion box is hidden between the expansion box and the side wall of the vehicle body and cannot be seen from the outside of the vehicle body. The expansion box is flush with the vehicle body, with an aesthetically pleasing appearance and good sealing performance.

[0012] 2. When the airbag is inflated, it reduces the gap between the extendable body and the vehicle body when the extendable body is fully retracted and slid out, ensuring that the interior space is not affected by the external environment. When the airbag is deflated, it reduces friction during the retraction and sliding out process, extending the lifespan of the RV.

[0013] 3. During the use of the extended box, if there is windy or rainy weather, the outside of the extended box may get dirty. When the extended box is retracted, the scraper sealing strip can scrape it off, keeping the interior of the vehicle clean. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a side view of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the expansion box of this utility model;

[0017] Figure 4 This is a schematic diagram of the sealing airbag of this utility model in an inflated state.

[0018] Figure 5 This is a schematic diagram of the sealing airbag of this utility model in the deflated state.

[0019] Figure 6 This is a schematic diagram of the fixed sealing groove of this utility model;

[0020] Figure 7 This is a schematic diagram showing the complete retraction of the sliding box of this utility model;

[0021] Figure 8 This is a schematic diagram showing the sliding box of this utility model fully sliding out.

[0022] Explanation of reference numerals in the attached drawings: 1. Sealing airbag; 2. Scraper sealing strip; 3. Fixed sealing groove; 4. Inflation duct; 5. Airbag duct; 6. Air source; 7. Solenoid valve; 8. Side frame structure; 9. Extendable box; 10. Vehicle body; 11. Fixing clip. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1-6 As shown: A concealed RV expandable box airbag sealing device includes a side frame structure 8, a fixed sealing groove 3, a fixing strip 11, a sealing airbag 1, a solenoid valve 7, an air source 6, an inflation conduit 4, and an airbag conduit 5. The fixed sealing groove 3 is provided on the side frame structure 8, and the sealing airbag 1 is provided inside the fixed sealing groove 3. The fixing strip 11 is provided on both sides of the lower part of the fixed sealing groove 3 to fix the sealing airbag 1. The upper ends of both sides of the fixed sealing groove 3 are fixed with scraper sealing strips 2 as slots. The solenoid valve 7 and the air source 6 are placed inside the vehicle body 10. The air source 6 is connected to the solenoid valve 7 through the inflation conduit 4, and the solenoid valve 7 is connected to the sealing airbag 1 through the airbag conduit 5.

[0025] Reference Figure 7-8 As shown: The hidden RV expansion box airbag sealing device is hidden between the expansion box 9 and the side wall of the vehicle body and cannot be seen from the outside of the vehicle body. The expansion box 9 is flush with the vehicle body, with an aesthetically pleasing appearance and good sealing performance.

[0026] The working principle of this utility model is as follows: there is a certain gap between the deflated airbag 1 and the expandable box 9 to avoid friction between the expandable box 9 and the airbag 1. When the expandable box 9 is not slid out, the airbag 1 between the expandable box 9 and the vehicle body 10 is in an inflated state. When the expandable box 9 needs to be slid out, the solenoid valve 7 controls the gas in the airbag 1 to be released, which can reduce the friction between the expandable box 9 and the airbag 1 during the sliding process and extend the service life of the RV. When the expandable box 9 is finished sliding out, the solenoid valve 7 controls the air source 6 to fill the airbag 1 with gas through the inflation conduit 4. The airbag expands and seals the expandable box 9 and the vehicle body 10, which is not affected by the external environment.

[0027] When the expansion box 9 needs to be retracted, the solenoid valve 7 controls the gas in the sealing airbag 1 to be released, which can reduce the friction between the expansion box 9 and the sealing airbag 1 during the retraction process. If there is garbage on the outside of the expansion box 9, the scraper sealing strip 2 can scrape it off during the retraction process. When the expansion box 9 is completely retracted, the solenoid valve 7 controls the air source 6 to fill the sealing airbag 1 with gas through the inflation conduit 4. The sealing airbag 1 expands and seals the expansion box 9 and the vehicle body 10, which is not affected by the external environment.

[0028] When the airbag 1 is inflated, it reduces the gap between the extendable body 9 and the vehicle body 10 when the extendable body 9 is fully retracted and slid out, thus protecting the interior space from external environmental influences. When the airbag 1 is deflated, it reduces friction during the retraction and sliding out process of the extendable body 9, extending the lifespan of the RV. In addition, during the retraction of the extendable body 9, the scraper sealing strip 2 can scrape off any debris attached to the extendable body 9.

[0029] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A concealed RV expandable box airbag sealing device, comprising a side frame structure (8), a fixed sealing groove (3), a fixed clip (11), a sealing airbag (1), a solenoid valve (7), an air source (6), an inflation conduit (4), and an airbag conduit (5), characterized in that, The side frame structure (8) is provided with the fixed sealing groove (3), and the sealing airbag (1) is provided in the fixed sealing groove (3). The solenoid valve (7) and the air source (6) are placed in the vehicle body (10) of the RV. The air source (6) is connected to the solenoid valve (7) through the inflation conduit (4), and the solenoid valve (7) is connected to the sealing airbag (1) through the airbag conduit (5).

2. The concealed RV expandable box airbag sealing device according to claim 1, characterized in that, The fixed sealing groove (3) has fixed clips (11) on both sides of the lower part of the interior, and fixed sealing airbag (1) seal strips; the upper ends of both sides of the fixed sealing groove (3) serve as clips to fix scraper sealing strips (2).