Inclined luggage turntable buffer device for airport

Abstract

The invention relates to the technical field of luggage buffering, and discloses an airport inclined luggage turntable buffering device which comprises a buffering structure, one end of the buffering structure is fixedly connected with a reset device through a dovetail groove, the lower surface of the buffering structure is fixedly connected with a guide rail, and the other end of the buffering structure is fixedly connected with an air storage tank. The buffering structure is composed of an air bag limiting structure, a porous elastomer structure and a honeycomb sandwich structure, and the air bag limiting structure is composed of a meat-imitating pad skin, a buffering air bag, a sponge air bag box and a pipeline supporting layer. The luggage is buffered for the first time, limited, buffered for the second time, buffered for the third time, buffered for the fourth time and buffered for the fifth time, and finally the luggage is separated from the buffering device.

Description

Technical Field

[0001] The present invention relates to the technical field of luggage buffering, and more particularly to a buffer device for an airport inclined luggage carousel. Background Art

[0002] In an airline baggage handling system, an inclined luggage carousel undertakes the key function of conveying sorted luggage from a high position to a low position extraction area. However, affected by the acceleration of gravity, a series of technical problems are likely to occur due to high-speed impact at the end of the inclined slide: in traditional designs, when luggage impacts a buffer component at a high speed, the peak value of the instantaneous impact force is too high, resulting in an increase in the damage rate of luggage cases, aggravated fatigue loss of equipment structural components, and significant noise pollution at the same time, which has become the core pain point restricting the efficiency of airport baggage handling and service quality.

[0003] Early buffer designs mainly relied on hard materials such as steel baffles, hard rubber pads or simple elastic structures such as springs and inflatable cushions. The core defect of such solutions lies in the single energy absorption mechanism: hard materials lack the ability to deform and buffer, and cannot effectively extend the impact time, resulting in the instantaneous acceleration of the luggage exceeding the safety threshold; while simple elastic structures can partially absorb kinetic energy, but there are problems with fixed buffer parameters: they cannot adapt to luggage of different weights, sizes and hardnesses, such as the impact characteristics of hard cases and soft bags are different, and it is easy to have "insufficient buffering" or "over-buffering", and it is prone to material aging and structural failure under long-term high-frequency impacts, and the maintenance cost is relatively high. In addition, there is a lack of collaborative design between the traditional rigidly connected buffer components and the carousel body, and resonance is easily caused during continuous impacts of multiple pieces of luggage, further aggravating equipment loss and noise problems. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a buffer device for an airport inclined luggage carousel to solve the problems existing in the above-mentioned background art.

[0005] The present invention provides the following technical solution: An inclined luggage carousel buffer device for an airport, comprising a buffer structure. One end of the buffer structure is fixedly connected to a reset device through a dovetail groove. The lower surface of the buffer structure is fixedly connected to a guide rail. The other end of the buffer structure is fixedly connected to an air storage tank. The buffer structure consists of three parts: an airbag limiting structure, a porous elastomer structure, and a honeycomb sandwich structure. The airbag limiting structure consists of four parts: a meat-like pad epidermis, a buffer airbag, a sponge airbag box, and a pipe support layer. The back of the meat-like pad epidermis is fixedly connected to the sponge airbag box. Each groove inside the sponge airbag box is provided with a buffer airbag. The back of the sponge airbag box is fixedly connected to the pipe support layer. An air inlet pipe is provided inside the pipe support layer. An exhaust pipe is provided inside the pipe support layer. The back of the buffer airbag is fixedly connected to the air inlet pipe through a hole inside the sponge airbag box. The back of the buffer airbag is fixedly connected to the exhaust pipe through a hole inside the sponge airbag box.

[0006] Further, the back of the pipe support layer is fixedly connected to the porous elastomer structure through a dovetail groove. The back of the porous elastomer structure is fixedly connected to the honeycomb sandwich structure through a dovetail groove.

[0007] Further, a reset spring is fixedly connected inside the reset device. The other end of the reset spring is fixedly connected to a connecting plate. The other end of the connecting plate is fixedly connected to the honeycomb sandwich structure through a dovetail groove. An installation hole is provided at the lower end of the reset device. The reset device is fixed in the tangential direction of the inclined luggage carousel for the airport and is perpendicular to the horizontal conveyor belt through the installation hole.

[0008] Further, a slider is movably connected to the upper part of the guide rail. The upper part of the slider is fixedly connected to the honeycomb sandwich structure. Fixed blocks are provided on both sides of the guide rail. The guide rail is fixed in the tangential direction of the inclined luggage carousel for the airport and is perpendicular to the horizontal conveyor belt through the fixed blocks.

[0009] Further, an exhaust port is provided on the surface of the air storage tank. One end of the first hose is fixedly connected to the exhaust port. The other end of the first hose is fixedly connected to the air inlet pipe.

[0010] Further, an air inlet is provided on the surface of the air storage tank. One end of the second hose is fixedly connected to the air inlet. The other end of the second hose is fixedly connected to the exhaust pipe.

[0011] The technical effects and advantages of the present invention: 1. The present invention is provided with three-layer buffer device structures including an airbag limit structure, a porous elastomer structure, and a honeycomb sandwich structure. The airbag limit structure consists of four parts: a meat-pad-like epidermis, a buffer airbag, a sponge airbag box, and a pipeline support layer. The meat-pad-like epidermis is made of TPU polyurethane material with a Shore hardness A85, and its surface is designed with bionic convex patterns, which are hemispherical protrusions with a diameter of 2 - 5 mm and a spacing of 3 mm. Each air cushion unit of the buffer airbag is an independent inflatable airbag, and the material is selected as a wear-resistant and tear-resistant TPU-coated fabric. The internal support structure adopts a honeycomb-like partition. The sponge airbag box is made of high-density sponge flexible material, and the pipeline support layer is made of rigid material. The porous elastomer structure is EVA foam with an open-cell rate ≥ 85% and a density of 30 - 50 kg / m³, and bionic ligament fibers and fiberglass-reinforced PA66 are embedded inside and laid crosswise at 45° / 135°. The honeycomb sandwich structure is a bionic structure imitating bone support, which is composed of an aluminum alloy honeycomb core with a side length of 5 mm and a wall thickness of 0.3 mm, and is combined with a disc spring array with an outer diameter of 20 mm, a thickness of 1 mm, and an elastic coefficient of 50 N / mm. This is beneficial for buffering multiple times in a short time to absorb a large amount of impact energy, and is also beneficial for reducing noise pollution.

[0012] 2. The present invention is fixedly connected by providing dovetail grooves between the buffer structure and the reset device, between the pipeline support layer and the porous elastomer structure, and between the porous elastomer structure and the honeycomb sandwich structure, which can enable the device to achieve rapid disassembly and rapid assembly, facilitating better maintenance and more convenient replacement.

[0013] 3. The present invention is provided with multiple grooves inside the sponge airbag box so that each air cushion unit in the buffer airbag is an independent inflatable airbag. The material is selected as a wear-resistant and tear-resistant TPU-coated fabric, and the internal support structure adopts a honeycomb-like partition. In order to prevent local overload, it is beneficial for replacing a new airbag when the independent inflatable airbag is damaged, and it is also beneficial for limiting the luggage.

[0014] 4. The present invention is provided with a reset device, which is beneficial for enabling the buffer device to quickly buffer the next piece of luggage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 is an exploded schematic diagram of the overall structure of the present invention.

[0017] Figure 3 is a schematic diagram of the buffer structure of the present invention.

[0018] Figure 4 is an exploded schematic diagram of the airbag limit structure of the present invention.

[0019] Figure 5Schematic diagram of the pipeline support layer structure of the present invention.

[0020] Figure 6 Exploded schematic diagram of the structure of the reset device of the present invention.

[0021] Figure 7 Cross-sectional schematic diagram of the structure of the reset device of the present invention.

[0022] Figure 8 Exploded schematic diagram of the structure of the guide rail of the present invention.

[0023] Figure 9 Schematic diagram of the structure of the gas storage tank of the present invention.

[0024] Reference numerals are: 1, buffer structure; 101, airbag limit structure; 1011, artificial meat pad epidermis; 1012, buffer airbag; 1013, sponge airbag box; 1014, pipeline support layer; 10141, intake pipe; 10142, exhaust pipe; 102, porous elastic body structure; 103, honeycomb sandwich structure; 2, reset device; 201, connecting plate; 202, reset spring; 203, mounting hole; 3, guide rail; 301, slider; 302, fixed block; 4, gas storage tank; 401, exhaust port; 402, intake port; 403, first hose; 404, second hose. Detailed implementation manners

[0025] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of the respective structures described in the following embodiments are merely illustrative, and the inclined airport baggage carousel buffer device related to the present invention is not limited to the respective structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0026] Refer to Figure 1 and Figure 2 , the present invention provides an inclined airport baggage carousel buffer device, including a buffer structure 1. One end of the buffer structure 1 is fixedly connected to a reset device 2 through a dovetail groove, the lower surface of the buffer structure 1 is fixedly connected to a guide rail 3, and the other end of the buffer structure 1 is fixedly connected to a gas storage tank 4.

[0027] Connecting the buffer structure 1 and the reset device 2 through a dovetail groove can enable the device to achieve rapid disassembly and rapid assembly, facilitating better maintenance and more convenient replacement. The buffer structure 1 and the gas storage tank 4 are connected through a first hose 403 and a second hose 404 to facilitate the movement of the buffer structure 1 on the guide rail 3.

[0028] Refer to Figure 3 , Figure 4 andFigure 5 , including a buffer structure 1 which is composed of three parts: an airbag limiting structure 101, a porous elastomer structure 102, and a honeycomb sandwich structure 103. The airbag limiting structure 101 is composed of four parts: a meat-pad-like epidermis 1011, a buffer airbag 1012, a sponge airbag box 1013, and a pipe support layer 1014. The back of the meat-pad-like epidermis 1011 is fixedly connected to the sponge airbag box 1013. Each groove inside the sponge airbag box 1013 is provided with a buffer airbag 1012. The back of the sponge airbag box 1013 is fixedly connected to the pipe support layer 1014. An air inlet pipe 10141 is provided inside the pipe support layer 1014, and an exhaust pipe 10142 is provided inside the pipe support layer 1014. The back of the buffer airbag 1012 is fixedly connected to the air inlet pipe 10141 through a hole inside the sponge airbag box 1013, and the back of the buffer airbag 1012 is fixedly connected to the exhaust pipe 10142 through a hole inside the sponge airbag box 1013. The back of the pipe support layer 1014 is fixedly connected to the porous elastomer structure 102 through a dovetail groove, and the back of the porous elastomer structure 102 is fixedly connected to the honeycomb sandwich structure 103 through a dovetail groove.

[0029] By setting multiple grooves inside the sponge airbag box 1013, each air cushion unit in the buffer airbag 1012 is an independent inflatable airbag. When an independent inflatable airbag is damaged, it is convenient to replace it with a new one. The connection between the pipe support layer 1014 and the porous elastomer structure 102, and between the porous elastomer structure 102 and the honeycomb sandwich structure 103 through dovetail grooves enables the device to achieve rapid disassembly and rapid assembly, facilitating better maintenance and more convenient replacement. The meat-pad-like epidermis 1011 is made of TPU polyurethane material, and its surface is designed with bionic convex lines, which improves the friction coefficient when the luggage contacts, so that the phenomenon of sliding impact of the luggage can be prevented even in a humid environment. The porous elastomer structure 102 is EVA foam with an open-cell rate ≥ 85%, and bionic ligament fibers are embedded and cross-laid inside, realizing the coupling of transverse shear damping and longitudinal compression energy absorption. The honeycomb sandwich structure 103 is an aluminum alloy honeycomb core, which forms a non-linear stiffness buffer in cooperation with a disc spring array.

[0030] Refer to Figure 2 , Figure 6 and Figure 7 , including an internal part of the reset device 2 is fixedly connected with a reset spring 202. The other end of the reset spring 202 is fixedly connected with a connecting plate 201. The other end of the connecting plate 201 is fixedly connected with the honeycomb sandwich structure 103 through a dovetail groove. An installation hole 203 is provided at the lower end of the reset device 2. The reset device 2 is fixed in the tangential direction of the inclined luggage carousel at the airport and is perpendicular to the horizontal conveyor belt through the installation hole 203.

[0031] The connection between the connecting plate 201 and the honeycomb sandwich structure 103 through the dovetail groove enables the device to achieve rapid disassembly and rapid assembly.

[0032] Refer to Figure 2 and Figure 8 , which includes that a slider 301 is movably connected to the upper part of a guide rail 3, a honeycomb sandwich structure 103 is fixedly connected to the upper part of the slider 301, fixing blocks 302 are arranged on both sides of the guide rail 3, and the guide rail 3 is fixed in the tangential direction of an inclined airport luggage carousel and is perpendicular to a horizontal conveyor belt through the fixing blocks 302.

[0033] Refer to Figure 2 , Figure 5 and Figure 9 , which includes that an exhaust port 401 is arranged on the surface of a gas storage tank 4, an air inlet 402 is arranged on the surface of the gas storage tank 4, one end of the exhaust port 401 is fixedly connected to one end of a first hose 403, the other end of the first hose 403 is fixedly connected to an intake pipe 10141, one end of the air inlet 402 is fixedly connected to one end of a second hose 404, and the other end of the second hose 404 is fixedly connected to an exhaust pipe 10142.

[0034] The working principle of the present invention: When buffering, when luggage is transported by a horizontal conveyor belt to an inclined luggage carousel, it first comes into contact with the artificial meat pad epidermis 1011. The artificial meat pad epidermis 1011 is made of TPU polyurethane material with a Shore hardness of A85. Its surface is designed with bionic convex lines, which are hemispherical protrusions with a diameter of 2 - 5 mm and a spacing of 3 mm, improving the friction coefficient when the luggage contacts, and preventing the phenomenon of sliding impact of the luggage even in a humid environment. Then the artificial meat pad epidermis 1011 transmits the received impact force to the sponge airbag box 1013. The sponge airbag box 1013 is made of high-density sponge flexible material, and the sponge airbag box 1013 plays a role in the first buffering of the luggage. At the same time, because the sponge airbag box 1013 is a flexible material, it can reduce noise pollution. When the sponge airbag box 1013 deforms, the luggage comes into contact with the buffer airbag 1012, and then the impact force of the luggage is transmitted from the sponge airbag box 1013 to the buffer airbag 1012 inside it. Each air cushion unit of the buffer airbag 1012 is an independent inflatable airbag, and the material is selected as wear-resistant and tear-resistant TPU-coated fabric. The internal support structure adopts a honeycomb-like partition. To prevent local overload, when the buffer airbag 1012 receives the impact force of the luggage, the part in contact with the luggage will discharge the air inside it through the exhaust pipe 10142. The discharged gas enters the air inlet 402 through the second hose 404, and then enters the air storage tank 4 from the air inlet 402, and is stored in the air storage tank 4. The buffer airbag 1012 absorbs kinetic energy through compression deformation, and the internal honeycomb structure guides the slow release of air flow, extending the buffering time, thus achieving the second buffering effect. The gas discharge will cause the part in contact with the buffer airbag 1012 to form a limiting platform by depression, and the part not in contact with the buffer airbag 1012 remains convex to form a highly flexible guardrail, which can prevent the luggage from sliding laterally, thus achieving the limiting effect. At the same time, because the buffer airbag 1012 is a flexible material, it can reduce noise pollution. Then the buffer airbag 1012 transmits the impact force of the luggage to the pipe support layer 1014. The pipe support layer 1014 is provided with an air inlet pipe 10141 and an exhaust pipe 10142 inside. The pipe support layer 1014 forms a stiffness buffer for the luggage, thus achieving the function of protecting the air inlet pipe 10141 and the exhaust pipe 10142 inside it and the third buffering effect. Then the pipe support layer 1014 transmits the impact force to the porous elastomer structure 102. The porous elastomer structure 102 is EVA foam with an open cell rate ≥ 85%, a density of 30 - 50 kg / m³, and bionic ligament fibers and glass fiber-reinforced PA66 are embedded inside, and are laid crosswise at 45° / 135°, realizing the coupling of transverse shear damping and longitudinal compression energy absorption, thus achieving the fourth buffering effect. At the same time, because the porous elastomer structure 102 is a flexible material, it can reduce noise pollution. Finally, the porous elastomer structure 102 transmits the impact force to the honeycomb sandwich structure 103. The honeycomb sandwich structure 103 is a bionic structure imitating bone support.It is composed of an aluminum alloy honeycomb core with a side length of 5 mm and a wall thickness of 0.3 mm, which is combined with a disc spring array with an outer diameter of 20 mm, a thickness of 1 mm, and a spring constant of 50 N / mm to form a non-linear stiffness buffer, thus achieving the fifth buffering effect.

[0035] After buffering is completed, due to the action of friction, the luggage will move along with the inclined luggage carousel. When the luggage starts to move, the gas in the air storage tank 4 will be discharged through the exhaust port 401. The discharged gas will enter the first hose 403 through the exhaust port 401 and then be discharged. The discharged gas will enter the intake pipe 10141 through the first hose 403. The intake pipe 10141 will inflate the sunken buffer airbag 1012 from head to tail in the moving direction, making the buffer airbag 1012 return to its original state, gradually releasing the limit on the luggage, and thus enabling the luggage to enter the detachment link. However, since the surface of the meat-like cushion skin 1011 is designed to prevent sliding impact, the initial friction between the luggage and the meat-like cushion skin 1011 is relatively large, which causes the luggage to drive the buffer structure 1 to start moving. Since the lower surface of the buffer structure 1 is fixed on the slider 301, the slider 301 can slide through the guide rail 3. The guide rail 3 is fixed in the tangential direction of the airport inclined luggage carousel perpendicular to the horizontal conveyor belt by the fixing block 302. Therefore, the buffer structure 1 will move along the direction of the guide rail 3. However, since the moving direction of the luggage is circular motion while the moving direction of the buffer structure 1 is the tangential direction of its circular motion, when the luggage moves along with the inclined luggage carousel, the contact area between the luggage and the buffer structure 1 will gradually decrease as the inclined luggage carousel moves, thereby reducing the friction between the luggage and the buffer structure 1. However, since one end of the buffer structure 1 is fixedly connected to the reset device 2, the reset device 2 is fixedly connected to the buffer structure 1 through the connecting plate 201. The connecting plate 201 and the buffer structure 1 are fixedly connected through a dovetail groove. The dovetail groove connection can enable the device to be quickly disassembled and assembled, facilitating better maintenance and more convenient replacement. The reset device 2 is fixed in the tangential direction of the airport inclined luggage carousel perpendicular to the horizontal conveyor belt through the mounting hole 203. Therefore, when the buffer structure 1 moves on the guide rail 3 through the slider 301, the buffer structure 1 will drive the connecting plate 201 to move, and the connecting plate 201 will drive the reset spring 202 to move. However, since the other end of the reset spring 202 is fixedly connected to the reset device 2, and the reset device 2 is fixedly connected to the inclined luggage carousel, the reset spring 202 in the reset device 2 will be stretched. At this time, the pulling force of the reset spring 202 is less than the friction between the buffer structure 1 and the luggage surface. When continuing to move, the friction between the buffer structure 1 and the luggage surface will gradually decrease, and the pulling force between the buffer structure 1 and the reset device 2 will gradually increase. When the pulling force of the reset spring 202 is greater than the friction between the buffer structure 1 and the luggage surface, the reset spring 202 will contract, driving the buffer structure 1 to move in the opposite direction, separating the luggage from the buffer structure 1, and thus enabling the luggage to complete the detachment and continue to move along with the inclined luggage carousel. When the reset spring 202 contracts to its initial state, the reset spring 202 will drive the buffer structure 1 back to its initial state, thereby achieving the effect of resetting the buffer structure 1 and buffering the next piece of luggage.

[0036] Finally, the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An inclined baggage carousel buffer device for an airport, comprising a buffer structure (1), characterized in that: One end of the buffer structure (1) is fixedly connected to a reset device (2) through a dovetail groove. The lower surface of the buffer structure (1) is fixedly connected to a guide rail (3). The other end of the buffer structure (1) is fixedly connected to an air storage tank (4). The buffer structure (1) is composed of three parts: an airbag limiting structure (101), a porous elastomer structure (102), and a honeycomb sandwich structure (103). The airbag limiting structure (101) is composed of four parts: a meat-pad-like epidermis (1011), a buffer airbag (1012), a sponge airbag box (1013), and a pipeline support layer (1014). The back of the meat-pad-like epidermis (1011) is fixedly connected to the sponge airbag box (1013). Each groove inside the sponge airbag box (1013) is provided with a buffer airbag (1012). The back of the sponge airbag box (1013) is fixedly connected to the pipeline support layer (1014).

2. The buffer device for an inclined baggage carousel at an airport according to claim 1, wherein: An air inlet pipe (10141) is provided inside the pipeline support layer (1014), and an exhaust pipe (10142) is provided inside the pipeline support layer (1014). The back of the buffer airbag (1012) is fixedly connected to the air inlet pipe (10141) through a hole inside the sponge airbag box (1013), and the back of the buffer airbag (1012) is fixedly connected to the exhaust pipe (10142) through a hole inside the sponge airbag box (1013).

3. The buffer device for the inclined baggage carousel at the airport according to claim 1, characterized in that: The back of the pipeline support layer (1014) is fixedly connected to the porous elastomer structure (102) through a dovetail groove, and the back of the porous elastomer structure (102) is fixedly connected to the honeycomb sandwich structure (103) through a dovetail groove.

4. A buffer device for an inclined baggage carousel at an airport according to claim 1, characterized in that: A reset spring (202) is fixedly connected inside the reset device (2). The other end of the reset spring (202) is fixedly connected to a connecting plate (201). The other end of the connecting plate (201) is fixedly connected to the honeycomb sandwich structure (103) through a dovetail groove.

5. The buffer device for an inclined baggage carousel at an airport according to claim 1, wherein: An installation hole (203) is provided at the lower end of the reset device (2). The reset device (2) is fixed in the tangential direction of the inclined airport luggage carousel and is perpendicular to the horizontal conveyor belt through the installation hole (203).

6. The buffer device for an airport inclined baggage carousel according to claim 1, characterized in that: A slider (301) is movably connected to the upper part of the guide rail (3). The upper part of the slider (301) is fixedly connected to the honeycomb sandwich structure (103).

7. The buffer device for an airport inclined luggage carousel according to claim 1, characterized in that: Fixed blocks (302) are provided on both sides of the guide rail (3). The guide rail (3) is fixed in the tangential direction of the inclined airport luggage carousel and is perpendicular to the horizontal conveyor belt through the fixed blocks (302).

8. The buffer device for an inclined baggage carousel at an airport according to claim 1, wherein: An exhaust port (401) is provided on the surface of the air storage tank (4). One end of the first hose (403) is fixedly connected to the exhaust port (401), and the other end of the first hose (403) is fixedly connected to the air inlet pipe (10141).

9. The buffer device for an inclined baggage carousel at an airport according to claim 1, wherein: An air inlet (402) is provided on the surface of the air storage tank (4). One end of the second hose (404) is fixedly connected to the air inlet (402), and the other end of the second hose (404) is fixedly connected to the exhaust pipe (10142).

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