Portable logistics unloading device

Abstract

The application discloses a portable unloading device for logistics, and belongs to the technical field of logistics unloading. The portable unloading device for logistics comprises a base provided with rollers at the bottom, a first conveying frame is fixedly arranged above the base, and a second conveying frame and a third conveying frame are arranged layer by layer above the first conveying frame; further comprising: two groups of lifting assemblies which are arranged between the first conveying frame and the first lifting plate and between the second conveying frame and the second lifting plate respectively; two groups of adjusting assemblies which are connected between the first lifting plate and the second conveying frame and between the second lifting plate and the third conveying frame respectively; and two fixed side plates which are fixedly arranged at the right side of the second conveying frame and at the left side of the third conveying frame respectively. The portable unloading device for logistics can be conveniently folded and stored, the goods can be effectively buffered during unloading, the connection stability between the buffer and the carriage can be automatically improved during the buffering process, and the safety during the unloading and conveying process is ensured.

Description

Technical Field

[0001] This invention relates to the field of logistics unloading technology, specifically a portable logistics unloading device. Background Technology

[0002] During logistics transportation, trucks are needed for loading and unloading. After the goods arrive at their destination, they need to be unloaded from the truck bed, which requires unloading equipment. Existing unloading equipment often uses a single conveyor frame to transport and unload goods. However, in order to avoid excessive conveying speed, the conveyor frame needs to be extended to reduce the conveying slope, which makes the required length of the conveyor frame too large, making it inconvenient to carry and transport.

[0003] Existing technology (Chinese patent application number: 202011426347.4, application date: 2020-12-09) discloses an energy-saving and environmentally friendly portable unloading device for logistics, mainly including a top slide, a middle slide, a bottom slide, a base, a dual-axis angle-adjusting seat, and a single-axis angle-adjusting seat. The top slide is connected to the middle slide via the dual-axis angle-adjusting seat, and is located above the middle slide. The middle slide is connected to the bottom slide via the dual-axis angle-adjusting seat, and is located above the bottom slide. The bottom slide is connected to the base via the single-axis angle-adjusting seat, and is located above the base. This invention is mainly applied to the unloading of heavy goods such as logistics parcels. The unloading process uses a physical method, and the impact of the falling goods is effectively reduced by multiple buffer plates during the unloading process, better protecting the goods. The entire process consumes no energy, causes no pollution to the environment, is simple to operate, convenient to use, easy to carry, has a wide range of applications, and high application flexibility.

[0004] However, existing unloading devices cannot improve the overall stability of the equipment frame when transporting heavy goods, making the equipment prone to displacement due to the impact of goods, causing it to detach from the carriage and affecting the unloading of subsequent goods, which has certain defects in use. Summary of the Invention

[0005] The purpose of this invention is to provide a portable unloading device for logistics, in order to solve the problem mentioned in the background art that current logistics unloading devices on the market cannot improve the overall stability of the equipment frame when transporting heavy goods, making the equipment prone to displacement due to the impact of the goods, causing it to detach from the carriage and affecting the unloading of subsequent goods.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a portable unloading device for logistics, comprising a base with rollers installed at the bottom, a first conveyor frame fixedly installed above the base, and a second conveyor frame and a third conveyor frame arranged layer by layer above the first conveyor frame, and conveyor rollers installed on the first conveyor frame, the second conveyor frame and the third conveyor frame, and a first lifting plate and a second lifting plate respectively arranged above the first conveyor frame and the second conveyor frame;

[0007] It also includes: two sets of lifting components, respectively set between the first conveyor frame and the first lifting plate and between the second conveyor frame and the second lifting plate, and the height of the second conveyor frame and the third conveyor frame can be adjusted by lifting adjustment;

[0008] Two sets of adjustment components are respectively connected between the first lifting plate and the second conveyor frame, and between the second lifting plate and the third conveyor frame, to realize the adjustment of the tilt angle of the second and third conveyor frames;

[0009] Two fixed side plates are fixedly installed on the right side of the second conveyor frame and the left side of the third conveyor frame, respectively. The outer side of the fixed side plates is connected to a buffer assembly to buffer the conveying of the logistics components.

[0010] The movable plate is rotatably mounted on the right end of the third conveyor frame. The movable plate is equipped with an adsorption component for adsorbing onto the cargo compartment of the logistics vehicle.

[0011] Preferably, the lifting assembly includes two sets of threaded rods rotatably mounted on the first conveyor frame and the second conveyor frame, with the threads at both ends of the threaded rods having opposite directions, and two first sliders symmetrically threaded to both ends of the threaded rods. At the same time, a first connecting rod is rotatably connected between the first slider on the first conveyor frame and the first lifting plate, and a first connecting rod is also connected between the first slider on the second conveyor frame and the second lifting plate.

[0012] By adopting the above technical solution, the rotating threaded rod can drive the two first sliders on its outer side to move synchronously, thereby driving the first lifting plate and the second lifting plate to adjust their height through the first connecting rod, thus realizing the adjustment of the position and height of the second conveyor frame and the third conveyor frame.

[0013] Preferably, guide rods are vertically fixed on both the first and second conveyor frames, and the two sets of guide rods pass through the first and second lifting plates respectively, and the first and second lifting plates together with the guide rods form a lifting structure.

[0014] By adopting the above technical solution, the lifting assembly can stably adjust the working height of the second and third conveyor frames, making it convenient to set up the conveying of logistics items of different sizes.

[0015] Preferably, the adjustment assembly includes a guide seat fixedly installed on the right side of the upper surface of the first lifting plate and the left side of the upper surface of the second lifting plate, and a second slider is slidably arranged on the inner side of the guide seat, and a first spring is connected between the second slider and the inner wall of the guide seat. Meanwhile, a steel cable is fixedly connected to the outer side of the second slider, and the lower ends of the two sets of steel cables are respectively fixedly connected to the first conveyor frame and the second conveyor frame.

[0016] By adopting the above technical solution, as the first lifting plate and the second lifting plate are raised and adjusted, the steel cable can automatically pull the second slider to slide elastically inside the guide seat.

[0017] Preferably, a second connecting rod is rotatably connected between the left side of the upper surface of the first lifting plate and the middle of the lower surface of the second conveyor frame, and a second connecting rod is also rotatably connected between the right side of the upper surface of the second lifting plate and the middle of the lower surface of the third conveyor frame, and the second conveyor frame and the third conveyor frame are respectively rotatably connected to the second slider below them.

[0018] By adopting the above technical solution, when the second slider slides, the second connecting rod can push the second conveyor frame and the third conveyor frame to rotate around the second slider, thereby realizing the adjustment of the working angle of the second conveyor frame and the third conveyor frame.

[0019] Preferably, the first conveyor frame, the second conveyor frame, and the third conveyor frame are arranged in a Z-shape during operation, and the upper end of the third conveyor frame after tilting is attached to the opening of the logistics vehicle.

[0020] By adopting the above technical solution, the device can be connected to the opening of the logistics vehicle through the lifting and rotation adjustment of the second and third conveyor frames, thereby facilitating the transportation and unloading of logistics items inside the vehicle.

[0021] Preferably, the buffer assembly includes a telescopic rod that is telescopically installed through the fixed side plate, and a buffer plate is fixedly connected to the end of the telescopic rod away from the fixed side plate. A buffer spring is connected between the fixed side plate and the buffer plate, and a buffer airbag is also connected between the fixed side plate and the buffer plate.

[0022] By adopting the above technical solution, when the goods are slidably conveyed along the conveyor rollers on the second and third conveyor frames, the buffer plate can cushion the goods and prevent them from slipping off the conveyor rollers.

[0023] Preferably, the adsorption assembly includes an air cylinder that is uniformly fixed through the movable plate, and a sealing suction cup is fixedly connected to the lower end of the air cylinder, and the sealing suction cup is sealed and adsorbed onto the inner wall of the carriage.

[0024] By adopting the above technical solution, the movable plate can be rotated during unloading, allowing the sealing suction cup at the lower end of the air cylinder to adhere to the inner wall of the carriage, thereby achieving overall auxiliary positioning of the device.

[0025] Preferably, the adsorption assembly further includes a pull rod extending through the upper end of the air cylinder, and a piston plate is fixedly connected to the lower end of the pull rod. The piston plate is slidably connected to the inner wall of the air cylinder with an interference fit. A second spring is connected between the piston plate and the inner wall of the air cylinder. An elastic airbag is connected between the upper end face of the air cylinder and the upper end of the pull rod. Adjacent elastic airbags are connected by pipes. The elastic airbags are connected to the buffer airbag on the left side by pipes. The two buffer airbags are connected by an air supply pipe.

[0026] By adopting the above technical solution, when the buffer plate is impacted by goods, it will compress the buffer airbag, causing some of the gas in the buffer airbag to enter the elastic airbag through the pipe. After the elastic airbag expands, it pushes the pull rod upward, which in turn pulls the piston plate to move upward inside the air cylinder, thereby further improving the adsorption force of the sealing suction cup and ensuring the positioning stability of the equipment when goods impact the equipment.

[0027] Compared with the prior art, the beneficial effects of the present invention are: the portable logistics unloading device can be conveniently folded and stored, and can effectively cushion the goods during the unloading process. In addition, it can automatically improve the connection stability between the device and the vehicle during the cushioning process, ensuring the safety of the unloading and transportation process. The specific details are as follows.

[0028] 1. Equipped with a first conveyor frame, a second conveyor frame, and a third conveyor frame, the first and second lifting plates can be raised and adjusted by rotating the threaded rod, thereby raising the second and third conveyor frames. During the raising process, the second and third conveyor frames will rotate synchronously under the tension of the steel cable, so that the first, second, and third conveyor frames are arranged in a Z-shape, realizing short-distance and stable transportation of goods. The foldable assembly method can facilitate the transportation and carrying of the equipment.

[0029] 2. Equipped with a buffer plate, when the goods slide and are conveyed on the surface of the conveyor rollers, the goods will hit the buffer plate during the fall, so that the buffer plate can slide elastically through the buffer spring and the fixed side plate. In this way, the elastic force of the buffer spring and the buffer airbag can effectively buffer the goods in the conveying process, and avoid damage to the goods due to excessive conveying speed.

[0030] 3. Equipped with an air cylinder and sealing suction cup, when the buffer plate is impacted, the buffer airbag is compressed and some of the gas inside is delivered to the elastic airbag, causing the elastic airbag to expand. This pushes the pull rod to drive the piston plate to rise inside the air cylinder, thereby increasing the suction force of the sealing suction cup and the carriage, effectively ensuring the stability and safety of the device for transporting heavy goods. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the present invention from a bottom view;

[0033] Figure 3 This is a schematic diagram of the connection structure between the first and second conveyor frames of the present invention;

[0034] Figure 4 This is a schematic cross-sectional view of the guide seat structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the airbag installation structure of the present invention;

[0036] Figure 6 This is a schematic diagram of the connection structure between the movable plate and the air cylinder of the present invention;

[0037] Figure 7 This is a schematic cross-sectional view of the air cylinder structure of the present invention;

[0038] Figure 8 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0039] In the diagram: 1. Base; 2. First conveyor frame; 3. Second conveyor frame; 4. Third conveyor frame; 5. First lifting plate; 6. Second lifting plate; 7. Threaded rod; 8. First slider; 9. First connecting rod; 10. Guide rod; 11. Guide seat; 12. Second slider; 13. Steel cable; 14. First spring; 15. Second connecting rod; 16. Fixed side plate; 17. Telescopic rod; 18. Buffer spring; 19. Buffer plate; 20. Buffer airbag; 21. Air supply pipe; 22. Movable plate; 23. Air cylinder; 24. Sealing suction cup; 25. Pull rod; 26. Elastic airbag; 27. Piston plate; 28. Second spring. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1: Please refer to Figures 1-3 and Figure 8 As shown, existing unloading devices for logistics cannot be easily folded during use, resulting in a large operating size that is not easy to carry and transport. To solve this technical problem, this embodiment discloses the following technical content.

[0042] A portable unloading device for logistics includes a base 1 with rollers installed at the bottom, a first conveyor frame 2 fixedly installed above the base 1, and a second conveyor frame 3 and a third conveyor frame 4 arranged layer by layer above the first conveyor frame 2. Conveying rollers are installed on the first conveyor frame 2, the second conveyor frame 3 and the third conveyor frame 4. At the same time, a first lifting plate 5 and a second lifting plate 6 are respectively arranged above the first conveyor frame 2 and the second conveyor frame 3.

[0043] It also includes: two sets of lifting components, which are respectively set between the first conveyor frame 2 and the first lifting plate 5 and between the second conveyor frame 3 and the second lifting plate 6, and the height of the second conveyor frame 3 and the third conveyor frame 4 can be adjusted by lifting adjustment;

[0044] Two sets of adjustment components are respectively connected between the first lifting plate 5 and the second conveyor frame 3 and between the second lifting plate 6 and the third conveyor frame 4 to adjust the tilt angle of the second conveyor frame 3 and the third conveyor frame 4;

[0045] The lifting assembly includes two sets of threaded rods 7 rotatably mounted on the first conveyor frame 2 and the second conveyor frame 3. The threads at both ends of the threaded rods 7 have opposite directions, and the two ends of the threaded rods 7 are symmetrically threaded to two first sliders 8. At the same time, a first connecting rod 9 is rotatably connected between the first slider 8 on the first conveyor frame 2 and the first lifting plate 5, and a first connecting rod 9 is also connected between the first slider 8 on the second conveyor frame 3 and the second lifting plate 6.

[0046] Guide rods 10 are vertically fixed on both the first conveyor frame 2 and the second conveyor frame 3. The two sets of guide rods 10 pass through the first lifting plate 5 and the second lifting plate 6 respectively. The first lifting plate 5 and the second lifting plate 6 together with the guide rods 10 form a lifting structure.

[0047] The adjustment assembly includes a guide seat 11 fixedly installed on the right side of the upper surface of the first lifting plate 5 and the left side of the upper surface of the second lifting plate 6. A second slider 12 is slidably arranged on the inner side of the guide seat 11, and a first spring 14 is connected between the second slider 12 and the inner wall of the guide seat 11. Meanwhile, a steel cable 13 is fixedly connected to the outer side of the second slider 12, and the lower ends of the two sets of steel cables 13 are respectively fixedly connected to the first conveyor frame 2 and the second conveyor frame 3.

[0048] A second connecting rod 15 is rotatably connected between the left side of the upper surface of the first lifting plate 5 and the middle of the lower surface of the second conveyor frame 3. A second connecting rod 15 is also rotatably connected between the right side of the upper surface of the second lifting plate 6 and the middle of the lower surface of the third conveyor frame 4. The second conveyor frame 3 and the third conveyor frame 4 are rotatably connected to the second slider 12 below them respectively.

[0049] The first conveyor frame 2, the second conveyor frame 3, and the third conveyor frame 4 are arranged in a Z-shape when in operation, and the upper end of the third conveyor frame 4 after tilting is attached to the opening of the logistics vehicle.

[0050] By adopting the above technical solution, when it is necessary to unload materials, the equipment is pushed to the outside of the carriage by the rollers under the base 1 and the rollers are locked. Then, the threaded rod 7 is rotated so that the threaded rod 7 and the first slider 8 are threadedly connected, so that the two first sliders 8 on the outside of the threaded rod 7 move closer to each other, thereby causing the first connecting rod 9 to rotate, which in turn pushes the first lifting plate 5 and the second lifting plate 6 to adjust their height. At the same time, the position height of the second conveyor frame 3 and the third conveyor frame 4 can be raised. As the first lifting plate 5 and the second lifting plate 6 rise, the second slider 12 will slide elastically along the guide seat 11 under the tension of the steel cable 13. When the second slider 12 slides, the second connecting rod 15 can support the second conveyor frame 3 and the third conveyor frame 4, so that the second conveyor frame 3 and the third conveyor frame 4 can rotate around the second slider 12, thereby adjusting the working angle of the second conveyor frame 3 and the third conveyor frame 4. At this time, the third conveyor frame 4 is close to the rear end of the carriage, which is convenient for subsequent transportation and loading and unloading of goods.

[0051] Example 2: The technical content disclosed in this example is a further improvement based on Example 1. Existing unloading devices for logistics cannot effectively buffer and improve the support stability of the device when unloading heavy goods. In order to further solve this technical problem, this example discloses the following technical content, such as... Figures 2-7 As shown;

[0052] Two fixed side plates 16 are fixedly installed on the right side of the second conveyor frame 3 and the left side of the third conveyor frame 4, respectively. A buffer assembly is connected to the outside of the fixed side plates 16 to buffer the conveying of the logistics components.

[0053] The movable plate 22 is rotatably installed on the right end of the third conveyor frame 4. The movable plate 22 is equipped with an adsorption component for adsorbing onto the cargo compartment of the logistics vehicle.

[0054] The buffer assembly includes a telescopic rod 17 that is telescopically mounted on the fixed side plate 16, and a buffer plate 19 is fixedly connected to the end of the telescopic rod 17 away from the fixed side plate 16. A buffer spring 18 is connected between the fixed side plate 16 and the buffer plate 19, and a buffer airbag 20 is also connected between the fixed side plate 16 and the buffer plate 19.

[0055] The adsorption assembly includes an air cylinder 23 that is uniformly fixed through the movable plate 22, and a sealing suction cup 24 is fixedly connected to the lower end of the air cylinder 23, and the sealing suction cup 24 is sealed and adsorbed to the inner wall of the carriage.

[0056] The adsorption assembly also includes a pull rod 25 extending through the upper end of the air cylinder 23, and a piston plate 27 is fixedly connected to the lower end of the pull rod 25. The piston plate 27 is slidably connected to the inner wall of the air cylinder 23 with an interference fit. A second spring 28 is connected between the piston plate 27 and the inner wall of the air cylinder 23. An elastic airbag 26 is connected between the upper end face of the air cylinder 23 and the upper end of the pull rod 25. Adjacent elastic airbags 26 are connected by pipes. The elastic airbag 26 is connected to the left buffer airbag 20 by pipes. The two buffer airbags 20 are connected by an air supply pipe 21.

[0057] By adopting the above technical solution, when the upper end of the third conveyor frame 4 approaches the rear of the carriage, the rotating movable plate 22 is pressed, so that the sealing suction cup 24 is initially adsorbed onto the inner wall of the carriage, and the goods are placed on the conveyor rollers for transportation. When the goods are transported from the third conveyor frame 4 to the second conveyor frame 3, the buffer plate 19 can buffer and support the goods under the elastic force of the buffer spring 18 and the buffer airbag 20. When the goods are transported from the second conveyor frame 3 to the first conveyor frame 2, the buffer plate 19 located below can buffer the goods again. As the buffer plate 19 is pressed, the buffer airbag 20 can be compressed and send some air to the elastic airbag 26, so that the elastic airbag 26 expands and pushes the pull rod 25 to move upward elastically. At this time, the pull rod 25 will pull the piston plate 27 to rise in the air cylinder 23, further improving the adsorption stability between the sealing suction cup 24 and the inner wall of the carriage, and ensuring the safety of goods transportation.

[0058] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0059] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable logistics unloading device, comprising a base (1) provided with wheels, a first conveying frame (2) fixedly installed above the base (1), a second conveying frame (3) and a third conveying frame (4) arranged layer by layer above the first conveying frame (2), conveying rollers installed on the first conveying frame (2), the second conveying frame (3) and the third conveying frame (4), a first lifting plate (5) and a second lifting plate (6) arranged above the first conveying frame (2) and the second conveying frame (3) respectively. characterized in that Further comprising: two lifting assemblies arranged between the first conveying frame (2) and the first lifting plate (5) and between the second conveying frame (3) and the second lifting plate (6) respectively, and height adjustment of the second conveying frame (3) and the third conveying frame (4) is realized through lifting adjustment; two adjusting assemblies connected between the first lifting plate (5) and the second conveying frame (3) and between the second lifting plate (6) and the third conveying frame (4) respectively, and the inclination angle of the second conveying frame (3) and the third conveying frame (4) is adjusted and controlled; two fixed side plates (16) fixedly installed on the right side of the second conveying frame (3) and the left side of the third conveying frame (4) respectively, and a buffer assembly is connected to the outer side of the fixed side plate (16) to realize buffer conveying of logistics pieces; a movable plate (22) rotatably installed on the right end of the third conveying frame (4), and an adsorption assembly is arranged on the movable plate (22) to adsorb the carriage of a logistics vehicle, the adsorption assembly further comprises a pull rod (25) penetrating through the upper end of a gas cylinder (23), the lower end of the pull rod (25) is fixedly connected with a piston sheet (27), the piston sheet (27) and the inner wall of the gas cylinder (23) are in interference sliding connection, a second spring (28) is connected between the piston sheet (27) and the inner wall of the gas cylinder (23), an elastic air bag (26) is connected between the upper end surface of the gas cylinder (23) and the upper end of the pull rod (25), adjacent elastic air bags (26) are connected through pipelines, the elastic air bags (26) and the left buffer air bag (20) are connected through pipelines, and the two buffer air bags (20) are connected through a gas conveying pipe (21).

2. The portable unloading device for logistics according to claim 1, characterized in that: The lifting assembly comprises two sets of threaded rods (7) rotatably installed on the first conveying frame (2) and the second conveying frame (3), the screw threads of the two ends of the threaded rod (7) are opposite, two first sliding blocks (8) are symmetrically connected to the two ends of the threaded rod (7) through screw threads, a first connecting rod (9) is rotatably connected between the first sliding block (8) on the first conveying frame (2) and the first lifting plate (5), and a first connecting rod (9) is also connected between the first sliding block (8) on the second conveying frame (3) and the second lifting plate (6).

3. The portable logistics unloading device according to claim 2, characterized in that: The first conveying frame (2) and the second conveying frame (3) are both vertically fixedly provided with guide rods (10), the two guide rods (10) penetrate through the first lifting plate (5) and the second lifting plate (6) respectively, and the first lifting plate (5) and the second lifting plate (6) form a lifting structure with the guide rods (10).

4. The portable unloading device for logistics according to claim 1, characterized in that: The adjusting assembly comprises a guide base (11) fixedly installed on the right side of the upper surface of the first lifting plate (5) and the left side of the upper surface of the second lifting plate (6), the inner side of the guide base (11) is slidably provided with a second sliding block (12), the first spring (14) is connected between the second sliding block (12) and the inner wall of the guide base (11), the outer side of the second sliding block (12) is fixedly connected with a steel cable (13), and the lower ends of the two groups of steel cables (13) are fixedly connected to the first conveying frame (2) and the second conveying frame (3) respectively.

5. The portable logistics unloading device according to claim 4, characterized in that: The left side of the upper surface of the first lifting plate (5) and the middle of the lower surface of the second conveying frame (3) are rotationally connected with a second connecting rod (15), the right side of the upper surface of the second lifting plate (6) and the middle of the lower surface of the third conveying frame (4) are also rotationally connected with the second connecting rod (15), and the second conveying frame (3) and the third conveying frame (4) are rotationally connected with the second sliding blocks (12) below them respectively.

6. The portable unloading device for logistics according to claim 5, characterized in that: The first conveying frame (2), the second conveying frame (3) and the third conveying frame (4) are distributed in a Z shape when working, and the upper end of the third conveying frame (4) after being inclined is attached to the vehicle compartment opening.

7. The portable unloading device for logistics according to claim 1, characterized in that: The buffer assembly comprises a telescopic rod (17) telescopically installed on the fixed side plate (16), one end of the telescopic rod (17) away from the fixed side plate (16) is fixedly connected with a buffer plate (19), the buffer spring (18) is connected between the fixed side plate (16) and the buffer plate (19), and the buffer gas bag (20) is also connected between the fixed side plate (16) and the buffer plate (19).

8. The portable unloading device for logistics according to claim 1, characterized in that: The adsorption assembly comprises air cylinders (23) fixedly installed on the movable plate (22), the lower ends of the air cylinders (23) are fixedly connected with sealing suction cups (24), and the sealing suction cups (24) are sealingly adsorbed to the inner wall of the vehicle compartment.

Images