Self-sealing sliding cover mechanism with high sealing performance

Abstract

The invention discloses a self-sealing sliding cover mechanism with high sealing performance, and the mechanism comprises a sliding cover assembly which is disposed at one side of an antenna port, and is filled with a thermal insulation material; the guide rails are symmetrically arranged on the two sides of the antenna opening, and the sliding cover assembly is installed on the guide rails; the driving device is connected with the sliding cover assembly; the sealing system comprises a sealing structure arranged on the edge of the sliding cover assembly and a sealing enclosure frame arranged on the periphery of the antenna opening; an inclined wedge pressing plate structure is arranged at the bottom of the sliding cover assembly, and the sealing enclosure frame is provided with an inclined face matched with the inclined wedge pressing plate structure. According to the sliding cover mechanism, through a self-locking type sealing structure of the inclined wedge pressing plate and the inclined face and in combination with a multi-layer sealing protection system, the problems that in the prior art, a sliding cover is poor in sealing performance, dust easily enters the sliding cover, and the heat preservation effect is not ideal are effectively solved, and normal operation of equipment of a special vehicle under the complex environment is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle equipment sealing, and in particular to a self-sealing sliding cover mechanism with high sealing performance. Background Art

[0002] Special vehicles usually need to be equipped with various mission equipment, such as antennas, theodolites, laser equipment, etc. These devices need to be stored in the vehicle during transportation, and need to be extended from the roof opening when working to ensure the normal operation of the equipment. At present, in order to meet the needs of equipment storage and work, corresponding equipment openings are usually opened on the roof and opening covers are set.

[0003] In the prior art, a sliding cover structure is a commonly used design scheme for opening covers. However, the conventional sliding cover structure generally has the following technical problems: 1. The matching gap between the sliding cover and the opening is large, resulting in poor sealing performance; 2. When the vehicle is working outdoors for a long time, especially when driving in a high dust environment, it is easy for dust outside the vehicle to enter the vehicle through the gap; 3. Dust entering the vehicle not only affects the environment inside the vehicle, but more importantly, it may damage the normal operation of the equipment inside the vehicle; 4. The thermal insulation performance of the existing sliding cover structure is not ideal, and it cannot well protect the equipment inside the vehicle and maintain the ambient temperature inside the vehicle.

[0004] Therefore, there is an urgent need to develop a sliding cover assembly with good sealing performance and thermal insulation effect to solve the technical problems existing in the prior art and meet the use requirements of special vehicles in complex environments. Summary of the invention

[0005] The technical problem to be solved by the present invention is: to solve the above-mentioned technical problems and provide a self-sealing sliding cover mechanism with good sealing performance and heat preservation effect, which can effectively prevent dust from entering the car and provide a stable working environment for the equipment in the car.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A self-sealing sliding cover mechanism with high sealing performance, comprising:

[0008] A sliding cover assembly, which is arranged on one side of the antenna port and is filled with heat-insulating material;

[0009] Guide rails, which are symmetrically arranged on both sides of the antenna opening, and the sliding cover assembly is installed on the guide rails;

[0010] A driving device connected to the sliding cover assembly;

[0011] A sealing system, the sealing system comprising a sealing structure arranged at the edge of the sliding cover assembly and a sealing surrounding frame arranged around the antenna opening;

[0012] The bottom of the sliding cover assembly is provided with an oblique wedge pressure plate structure, and the sealing surrounding frame is provided with an inclined surface matched with the oblique wedge pressure plate structure.

[0013] Preferably, the sliding cover assembly includes a plurality of inner and outer plates, the inner and outer plates are filled with heat-insulating materials, and the plates are welded together to form an integral structure.

[0014] Preferably, the guide rail includes a support and a dual-axis linear guide rail arranged on the support, and sliding components cooperating with the dual-axis linear guide rail are provided on both sides of the bottom of the sliding cover assembly.

[0015] Preferably, the driving device is an electric push rod, which includes a telescopic push rod and a motor for controlling the telescopic push rod to extend and retract.

[0016] Preferably, the sealing system further comprises:

[0017] Sealing baffles arranged at the front and rear ends of the sliding cover assembly;

[0018] A sealing component disposed on the sealing baffle;

[0019] Dust-proof structures are arranged on both sides of the sliding cover assembly.

[0020] Preferably, the sealing component is a molded sealing strip, the cross section of the molded sealing strip is a lip-shaped structure, and the molded sealing strip is connected to the sealing baffle through a slot structure.

[0021] Preferably, the inclination angle between the inclined wedge pressure plate structure and the inclined surface is 15°.

[0022] The technical effects that can be achieved by the present invention include the following:

[0023] 1. The present invention forms a self-locking sealing structure by arranging an inclined wedge pressure plate structure at the bottom of the sliding cover assembly and arranging a corresponding inclined surface on the sealing frame. At the same time, it cooperates with the sealing structure in the sealing system to achieve double sealing protection, effectively solves the problems of poor sealing performance and easy entry of dust into the vehicle, significantly improves the sealing effect of the entire system, and ensures that the equipment in the vehicle can work normally in harsh environments.

[0024] 2. The present invention forms a complete thermal insulation sealing system by filling the interior of the sliding cover assembly with thermal insulation material, arranging a sealing structure at its edge, and arranging a sealing frame around the antenna opening, thereby effectively solving the protection problem of the in-vehicle equipment, providing a stable and reliable working environment, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A top view of the structure of the self-sealing sliding cover assembly with high sealing performance in Example 1 (open state);

[0026] Figure 2A top view of the structure of the self-sealing sliding cover assembly with high sealing performance in Example 1 (closed state);

[0027] Figure 3 This is a schematic diagram of the structure at the antenna port in Example 1;

[0028] Figure 4 This is a schematic diagram of the structure of the antenna port when the sliding cover assembly is closed in Example 1;

[0029] Figure 5 for Figure 4 The enlarged view of point a in the middle;

[0030] Figure 6 for Figure 4 The enlarged image of point b in the middle;

[0031] Figure 7 Schematic diagram of the structure of the guide rail in Example 1.

[0032] Figure numerals: 1. sliding cover assembly; 101. inclined wedge pressure plate; 2. left and right guide rails; 201. support; 202. linear guide rail; 3. electric push rod; 301. telescopic push rod; 302. motor; 4. travel switch; 5. front sealing baffle; 6. rear sealing baffle; 7. sealing strip; 8. dustproof brush; 9. roof antenna opening; 10. foam insulation layer; 11. sealing frame; 12. sealing strip. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and examples, but these specific implementation schemes do not limit the protection scope of the present invention in any way.

[0034] Example 1

[0035] See attached Figure 1-7 A self-sealing sliding cover mechanism with high sealing performance, a self-sealing sliding cover assembly 1 with high sealing performance is arranged on the top of the vehicle cabin, and includes a sliding cover assembly 1, left and right guide rails 2, an electric push rod 3, a travel switch 4, a front sealing baffle 5, a rear sealing baffle 6, a molded sealing strip 7, a roof antenna opening 9 sealing frame 11 and a double-layer dustproof system.

[0036] The sliding cover assembly 1 is arranged on one side of the roof antenna opening 9, and the inside thereof is filled with a foam insulation layer 10 to provide good thermal insulation performance. The sliding cover of the sliding cover assembly 1 is made of a plurality of inner and outer aluminum plates sandwiched with a foam board of polyurethane foam and assembled by welding. The bottom of the sliding cover assembly 1 is an angled inclined wedge plate 101, which is made of sheet metal. This structure cooperates with the sealing frame 11 of the roof antenna opening 9, and can achieve a self-locking sealing effect when closed. High-speed roller sliders that cooperate with the left and right guide rails 2 are provided on both sides of the bottom of the sliding cover assembly 1 to ensure its smooth and reliable movement.

[0037] The left and right guide rails 2 are symmetrically mounted on both sides of the roof antenna opening 9, and include a support 201 and a dual-axis linear guide rail 202 disposed on the support 201. The surface of the linear guide rail 202 is treated with anti-corrosion and coated with a special lubricant to ensure that it can maintain good sliding performance in harsh environments. The travel switch 4 is mounted at both ends of the left and right guide rails 2. The travel switch 4 controls the opening and closing position of the slide cover through a precise mechanical trigger mechanism, and the triggering accuracy is better than ±0.1mm. Each travel switch 4 is equipped with a status indicator light, which is convenient for the operator to grasp the working status of the system at any time.

[0038] The electric push rod 3 is arranged on one side of the sliding cover assembly 1 , and the electric push rod 3 includes a telescopic push rod 301 and a motor 302 for controlling the telescopic push rod 301 to extend and retract. Specifically, the electric push rod 3 is connected to the sliding cover via the telescopic push rod 301 .

[0039] The front sealing baffle 5 and the rear sealing baffle 6 are respectively installed at the front and rear ends of the sliding cover assembly 1. The front sealing baffle 5 and the rear sealing baffle 6 are provided with sealing components, which are molded sealing strips 7. The molded sealing strips 7 are installed at the edge of the sliding cover assembly 1 and are made of silicone rubber material. The cross-section is designed as a special lip-shaped structure, which can form a reliable sealing effect when pressed. The installation of the molded sealing strip 7 adopts a card slot design, which is easy to disassemble and replace. There are also dust brushes 8 structures on the two sides of the sliding cover near the rear sealing baffle 6. The dust brushes 8 are wear-resistant brushes that can effectively block dust and rain.

[0040] The roof antenna opening 9 is surrounded by a foam insulation layer 10. The roof antenna opening 9 sealing frame 11 is fixed at the roof opening. The sealing surface of the frame is designed with an inclined surface that matches the inclined wedge plate 101 of the sliding cover assembly 1. The inclined angle is 15°. This design can ensure the sealing effect when closing and reduce the friction resistance when opening. In addition, the roof antenna opening 9 sealing frame 11 is provided with an angled sealing strip 12.

[0041] The double-layer dustproof system includes an outer dustproof structure and an inner sealing structure. The outer dustproof structure is composed of a sliding cover assembly 1, front and rear rubber strip baffles, and left and right dustproof brushes 8, which can effectively block large particles of dust and rain. The inner sealing structure is formed by the close fit between the sliding cover assembly 1 and the roof antenna port 9, and the sealing frame 11 of the roof antenna port 9 is provided with an angled sealing strip 12. The sliding cover assembly 1 is driven by an electric push rod to move so that the gap between it and the roof antenna port 9 is initially reduced, thereby making the deformation of the sealing strip 12 larger and larger, and the contact between the sliding cover assembly 1 and the sealing strip 12 is getting closer and closer, with excellent sealing performance. This double-layer protection design greatly improves the sealing performance of the entire system.

[0042] The working principle and method of the self-sealing electric sliding cover assembly are:

[0043] In the first step, the operator first checks whether the sliding cover assembly 1 is in the fully closed position, confirms the matching state of the high-speed roller slider at the bottom of the sliding cover assembly 1 and the dual-axis linear guide 202, and checks the lubrication of the surface of the linear guide 202. At the same time, check whether the inclined surface of the inclined plate 101 and the sealing frame 11 of the roof antenna opening 9 are tightly fitted, and whether the molded sealing strip 7 is intact and kept in a tight state.

[0044] In the second step, the operator starts the motor 302 through the control system, and the telescopic push rod 301 of the electric push rod 3 begins to extend, driving the sliding cover assembly 1 to move. At this time, it is necessary to observe whether the sliding cover assembly 1 moves smoothly on the dual-axis linear guide rail 202, whether the front sealing baffle 5 and the rear sealing baffle 6 are separated normally, and whether the protection state of the dustproof brush 8 is good.

[0045] In the third step, as the electric push rod 3 continues to push, the sliding cover assembly 1 gradually moves along the left and right guide rails 2. In this process, the inclined wedge pressure plate 101 will first separate from the 15° inclined surface of the sealing frame 11. Due to this special angle design, the thrust required for the separation process is relatively small. The high-speed roller slider slides on the dual-axis linear guide rail 202 to ensure that the entire opening process is smooth and reliable.

[0046] Step 4: When the sliding cover assembly 1 moves into position and touches the front travel switch 4, the system stops automatically. At this time, the roof antenna port 9 is fully opened, and the double-layer dustproof system still works: the front and rear rubber baffles and left and right dustproof brushes 8 of the outer layer continue to block dust, and the precision matching structure of the inner layer maintains basic sealing.

[0047] Step 5: When closing is required, the operator starts the motor 302 through the control system, and the telescopic push rod 301 of the electric push rod 3 begins to shrink, driving the sliding cover assembly 1 to move in the opposite direction. When approaching the closed position, the inclined wedge pressure plate 101 begins to contact the inclined surface of the sealing frame 11. The 15° inclined angle design allows the sliding cover assembly 1 to be stably positioned and achieve self-locking sealing.

[0048] Finally, when the sliding cover assembly 1 is completely closed and touches the rear travel switch 4, the system stops. At this time, the working status of the double-layer dustproof system needs to be checked: confirm whether the front and rear rubber strip baffles and the left and right dustproof brushes 8 in the outer dustproof structure are in place, whether the inclined wedge pressure plate 101 in the inner sealing structure and the sealing frame 11 have achieved a precise fit of 0.5-1.0mm, and whether the sealing strip 12 is effectively fitted. At the same time, check the compression status of the molded sealing strip 7 to ensure that the entire system achieves an ideal sealing effect.

[0049] The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of protection of the present invention. Any innovative improvement or replacement based on the present invention shall fall within the scope of the claims of the present invention. At the same time, the various parameters, materials, and processes mentioned in the above embodiments are not exclusive. Without departing from the technical essence of the present invention, a person of ordinary skill in the art may make various alternatives, and these alternatives shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A self-sealing sliding cover mechanism with high sealing performance, characterized in that: include: A sliding cover assembly, which is arranged on one side of the antenna port and is filled with heat-insulating material; Guide rails, which are symmetrically arranged on both sides of the antenna opening, and the sliding cover assembly is installed on the guide rails; A driving device connected to the sliding cover assembly; A sealing system, the sealing system comprising a sealing structure arranged at the edge of the sliding cover assembly and a sealing surrounding frame arranged around the antenna opening; The bottom of the sliding cover assembly is provided with an oblique wedge pressure plate structure, and the sealing surrounding frame is provided with an inclined surface matched with the oblique wedge pressure plate structure.

2. The self-sealing sliding cover mechanism with high sealing performance according to claim 1, characterized in that: The sliding cover assembly includes a plurality of inner and outer plates, the inner and outer plates are filled with heat-insulating materials, and the plates are welded together to form an integral structure.

3. The self-sealing sliding cover mechanism with high sealing performance according to claim 1, characterized in that: The guide rail comprises a support and a double-axis linear guide rail arranged on the support, and sliding components cooperating with the double-axis linear guide rail are arranged on both sides of the bottom of the sliding cover assembly.

4. The self-sealing sliding cover mechanism with high sealing performance according to claim 1, characterized in that: The driving device is an electric push rod, which includes a telescopic push rod and a motor for controlling the telescopic push rod to be extended or retracted.

5. The self-sealing sliding cover mechanism with high sealing performance according to claim 1, characterized in that: The sealing system further comprises: Sealing baffles arranged at the front and rear ends of the sliding cover assembly; A sealing component disposed on the sealing baffle; Dust-proof structures are arranged on both sides of the sliding cover assembly.

6. The self-sealing sliding cover mechanism with high sealing performance according to claim 5, characterized in that: The sealing component is a molded sealing strip, the cross section of the molded sealing strip is a lip-shaped structure, and the molded sealing strip is connected to the sealing baffle through a slot structure.

7. The self-sealing sliding cover mechanism with high sealing performance according to claim 1, characterized in that: The inclination angle between the inclined wedge plate structure and the inclined surface is 15°.

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