Automatic transportation device for corridor luggage cases

Abstract

The present application relates to the field of transportation device, especially to the corridor suitcase transportation device, the present application sets up the conveyor belt device parallel to the corridor slope in the corridor wall body, and sets up the clamping device for clamping the transport trolley on the conveyor belt device, so that the whole can move along the movement path of the conveyor belt device, and sets up the hook for hanging the suitcase on the transport trolley, so that the pedestrian can hang the suitcase on the hook and transport to the upper end or the lower end of the corridor through the conveyor belt device, so as to solve the problem that the pedestrian drags the suitcase on the corridor slope in the prior art, which is laborious, and the suitcase is damaged or the personnel is injured when the slope is not controlled well. Further, the structure for making the transport trolley separate from the clamping device is arranged on the upper end surface and the lower end surface of the corridor, so that the transport trolley stops moving and waits for the pedestrian to hang or take the suitcase, so as to facilitate the pedestrian to hang or take the suitcase.

Description

Technical Field

[0001] This invention relates to the field of transportation devices, and more particularly to an automatic luggage transport device for stairwells. Background Technology

[0002] Suitcases are becoming increasingly common household items. People rely on them for travel and long business trips. This widespread use has led to a proliferation of people carrying suitcases in subway stations, high-speed rail stations, and airports. While escalators and elevators are convenient for people with suitcases, they also cause overcrowding. To address this, current technology often involves ramps next to stairs. However, these ramps are often steep, making it difficult to pull suitcases uphill. Downhill, controlling the speed of the suitcase is crucial, and a heavy suitcase can easily be damaged, potentially causing injury or accidents. Furthermore, some pedestrians who cannot control their suitcases on ramps are forced to carry them themselves, which is extremely inconvenient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic luggage transport device for stairwells, which avoids the problems described in the prior art where ramps are built next to stairwells to facilitate people pulling luggage up and down stairs. Pulling luggage uphill is difficult and strenuous, and when going downhill, it is necessary to control the speed of the luggage. If the speed is not controlled properly, it may damage the luggage, and in severe cases, it may cause pedestrian injuries and safety accidents. Furthermore, some pedestrians who are not good at controlling their luggage on ramps have to carry their luggage up and down the stairs themselves, which is very inconvenient.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] An automated luggage transport device for stairwells includes a conveyor belt device arranged parallel to the stairwell slope, a plurality of clamping devices equidistantly arranged on the belt of the conveyor belt device, and a transport trolley for transporting luggage on each clamping device.

[0006] The two ends of the conveyor belt device are parallel to the upper and lower hanging box areas of the corridor, respectively, and the middle part is parallel to the corridor slope. Specifically, the conveyor belt device includes an active fixed pulley, a driven fixed pulley, and a guide fixed pulley. The active and driven fixed pulleys are respectively installed on the walls of the upper and lower hanging box areas of the corridor, and are parallel to the horizontal plane of the ground where the walls of the upper and lower hanging box areas are located. The guide fixed pulleys are respectively installed on the walls at the junction of the upper and lower hanging box areas and the corridor slope, so that the conveyor belt between the two guide fixed pulleys is parallel to the corridor slope. The conveyor belt between the driven fixed pulley, the active fixed pulley, and the guide fixed pulley on the same horizontal plane is parallel to the horizontal plane of the ground in the upper and lower hanging box areas of the corridor.

[0007] Furthermore, multiple guide pulleys are evenly distributed and installed on the wall corresponding to the conveyor belt that is parallel to the stairwell slope to prevent the conveyor belt from falling severely due to gravity.

[0008] Furthermore, below the conveyor belt corresponding to the pressure rail, there are closely arranged support pulleys to prevent the conveyor belt from being pulled downwards when the pressure rail presses down on the detached rollers.

[0009] Preferably, the belt is made of steel cable.

[0010] The clamping device includes two grippers fixedly mounted on the conveyor belt. Each gripper is equipped with a connecting rod, and each connecting rod has a curved section that allows the entire clamping device to pass through various fixed pulleys. A crossbeam is installed between the two connecting rods and at one end near the ground. A fixed rod is installed vertically downwards and perpendicular to the crossbeam at the middle of the crossbeam. A shaft, perpendicular to the fixed rod and parallel to the horizontal plane of the ground, is installed on the fixed rod and can move up and down on it. Disengagement wheels are installed at both ends of the shaft via bearings. A parallelogram linkage structure is symmetrically installed at one apex on each side of the shaft. The remaining three apexes of the two parallelogram linkage structures are connected by a fixed shaft, thus forming a parallelogram frame structure. The fixed shaft, installed between the diagonals corresponding to the apexes of the two parallelogram linkage structures mounted on the shaft, is mounted on the fixed rod and can move up and down on the fixed rod. A spring is fitted onto the fixed rod, with one end of the spring mounted on the shaft and the other end mounted on the fixed shaft. A blocking part is provided at the end of the fixed rod near the ground to prevent the parallelogram frame structure from falling off. The two pairs of rods of the two parallelogram connecting rod structures extend downward along their respective rods, and the ends of the two pairs of downward-extending rods near the ground are provided with curved parts that cooperate with the transport trolley.

[0011] Preferably, the blocking part is a nut, which is threadedly connected to the end of the fixed rod near the ground. This allows adjustment of the insertion depth of the nut on the fixed rod to adjust the spacing between the fixed shaft and the shaft of the parallelogram linkage frame structure installed on the fixed rod, thereby adjusting the clamping timing of the clamping device and effectively preventing the parallelogram linkage frame structure from falling off the fixed rod.

[0012] The automatic luggage transport device also includes pressure rails installed on both sides of the conveyor belt in the upper and lower sections of the stairwell. The pressure rails are quadrangular truncated pyramids formed by two parallel and congruent isosceles trapezoids. The length of the plane of the pressure rail at the end away from the ground is greater than the length of the plane of the end of the pressure rail near the ground, so that the detachment wheels installed at both ends of the shaft can compress the spring through the inclined surface of the pressure rail, thereby causing the two pairs of downwardly extending rods of the parallelogram linkage frame structure to move in opposite directions.

[0013] The transport trolley includes a body, a hook on the upper surface of the body, and a hook for hanging suitcases in a recess on the lower surface of the body. The hook is formed by bending two parallel plates in a direction away from each other, so as to cooperate with the bent part at the lower end of the parallelogram linkage frame structure to realize the connection and separation of the clamping device from the transport trolley. Vertically arranged on the hook are an upper balance spring, a piston, a lower balance spring, a support plate, and a positioning block. The upper balance spring is fitted onto the hook rod, with one end contacting the top surface of the recess and the other end contacting the piston. The piston and the hook... The hook is fixedly connected, and the piston end near the ground is connected to a lower balance spring fitted on the hook. The lower balance spring end near the ground is placed on a support plate, which is fixed to the lower plane of the vehicle body. The hook can move relative to the support plate, and its indicator block is fixedly connected to the hook. When the transport trolley is not carrying a luggage box, the plane of the end of the indicator block near the ground is on the same horizontal plane as the lower end of the vehicle body, so that when the hook is affected by gravity, the indicator block can be displaced downwards. Thus, the sensor installed on the lower end of the vehicle body can detect the displacement of the indicator block, and thus determine whether the luggage box has been removed.

[0014] The transport trolley has a guide rail on each side of its body along its path. Each side of the transport trolley has two pairs of rollers, one above the other, mounted on a shaft and bearings. The two pairs of rollers on each side of the transport trolley clamp onto the guide rail on the same side.

[0015] Furthermore, the two pairs of rollers on the upper sides of the trolley body have conical treads with inner rims, which are responsible for bearing loads and smoothly passing through the circular track; the two pairs of rollers below are cylindrical, which is intended to increase the contact friction with the conveyor belt and better transmit traction force.

[0016] Below the guide rail are two conveyor belts, one located at the upper end of the corridor and the other at the lower end. The side of the conveyor belt away from the ground is in contact with two pairs of cylindrical rollers below the transport trolley.

[0017] Preferably, the installation distance between each clamping device is greater than the transport distance of the conveyor belt.

[0018] Furthermore, an arc-shaped guide groove is provided on the end face of the pressure rail near the ground. The arc-shaped guide groove bends towards the side closer to the wall, with wider grooves at both ends and narrower grooves in the middle. The guide rail below the end face of the pressure rail near the ground is an arc-shaped guide rail, which bends away from the wall. Correspondingly, the conveyor belt below it is an arc-shaped conveyor belt. This allows the clamping device to be laterally misaligned with the transport trolley after it is detached, achieving separation of the clamping device from the transport trolley. During clamping, the trolley hook inserts into the curved part of the clamping device, which also facilitates the clamping device in clamping the transport trolley.

[0019] Furthermore, a guide groove is provided on the stairwell slope directly below the hook along the direction of the hook's travel. When a suitcase is hung on the hook, the hook moves downward due to gravity, causing the suitcase wheels to contact the guide groove on the stairwell slope, effectively preventing the suitcase from deflecting during the traction process.

[0020] The beneficial effects of the present invention are as follows: 1. By setting a conveyor belt device on the wall of the corridor and setting clamping devices at equal intervals on the conveyor belt device, and setting a transport trolley below each clamping device, the present invention avoids the difficulties of dragging suitcases on the slope of the corridor caused by the prior art, as well as the drawbacks of people needing to control the speed of the suitcases when going downhill, and the safety accidents caused by poor control.

[0021] 2. Set pressure rails on the walls of the luggage hanging and retrieval areas at the upper and lower ends of the corridor, so that the clamping device moves downwards when passing through the pressure rails, thereby causing the transport trolley to disengage from the clamping device and stop moving, thus making it convenient for pedestrians to hang and retrieve their luggage.

[0022] 3. Guide rails are installed on both sides of the transport trolley and along its movement trajectory, and rollers are installed on both sides of the transport trolley to clamp the guide rails on both sides, thereby effectively preventing the safety hazards caused by the transport trolley and the box swinging together when transporting luggage. Attached Figure Description

[0023] Figure 1 The diagram shows the overall installation position of the transportation device of the present invention.

[0024] Figure 2 The figure shown is a schematic diagram of the overall outline of the transportation device of the present invention;

[0025] Figure 3 The diagram shown is a detailed schematic of the corresponding container transport device of the present invention.

[0026] Figure 4 The diagram shown is a detailed schematic of the installation positions of the various components of this invention;

[0027] Figure 5 The diagram shown is a detailed schematic of the transport trolley of the present invention;

[0028] Figure 6 The diagram shown is a detailed schematic of the pressure rail of the present invention;

[0029] Figure 7 The above is an auxiliary schematic diagram illustrating the operating principle of the present invention;

[0030] Explanation of reference numerals in the attached drawings: 1. Conveyor belt device; 2. Clamping device; 3. Transport trolley; 4. Rail clamp; 5. Guide rail; 6. Conveyor belt; 7. Upper box-holding area; 8. Lower box-holding area; 101. Driving fixed pulley; 102. Driven fixed pulley; 103. Guide fixed pulley; 104. Belt body; 105. Support fixed pulley; 201. Cable gripper; 202. Connecting rod; 203. Bend; 204. Crossbeam; 205. Fixed rod; 206. Shaft; 207. Detachment wheel. 208. Parallelogram linkage structure; 209. Spring; 210. Blocking part; 301. Car body; 302. Lifting hook; 303. Hook; 304. Roller; 305. Concave hole; 306. Upper balance spring; 307. Piston; 308. Lower balance spring; 309. Support plate; 310. Sensor; 311. Positioning block; 401. Arc guide groove; 402. Stop point A; 403. Stop point B; 501. Arc guide rail; 601. Arc conveyor belt. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 5 As shown, the automatic luggage transport device for stairwells includes a conveyor belt device 1 arranged parallel to the stairwell slope, a plurality of clamping devices 2 equidistantly arranged on the belt body 104 of the conveyor belt device 1, and a transport trolley 3 arranged on each clamping device 2 for transporting luggage.

[0033] The two ends of the conveyor belt device 1 are parallel to the upper end of the corridor's box-retrieving area 7 and the lower end of the corridor's box-retrieving area 8, respectively, while the middle part is parallel to the corridor's slope. Specifically, the conveyor belt device 1 includes a driving fixed pulley 101, a driven fixed pulley 102, and a guide fixed pulley 103. The driving fixed pulley 101 and the driven fixed pulley 102 are respectively installed on the walls of the upper end of the corridor's box-retrieving area 7 and the lower end of the corridor's box-retrieving area 8, and are located on the ground where the walls of the upper end of the corridor's box-retrieving area 7 and the lower end of the corridor's box-retrieving area 8 are located. With the horizontal planes parallel, the guide pulleys 103 are respectively installed on the walls at the junction of the upper and lower hanging box areas 7 and the stairwell slope, so that the conveyor belt device 1 belt body 104 between the two guide pulleys 103 is parallel to the stairwell slope. The driven pulley 102 and the driving pulley 101 and the guide pulley 103 on the same horizontal plane are respectively parallel to the ground horizontal plane of the upper hanging box area 7 and the lower hanging box area 8 of the stairwell.

[0034] Furthermore, multiple guide pulleys 103 are evenly distributed and installed on the wall corresponding to the conveyor belt device 1 belt body 104 parallel to the stairwell slope to prevent the conveyor belt device 1 belt body 104 from falling severely due to gravity.

[0035] Furthermore, below the conveyor belt 104 corresponding to the pressure rail 4, there are closely arranged support pulleys 105 to prevent the conveyor belt 104 from being pulled downward when the pressure rail 4 presses down on the disengagement pulley 207.

[0036] Preferably, the belt 104 is made of steel cable.

[0037] The clamping device 2 includes two cable grippers 201 fixedly mounted on the belt body 104 of the conveyor belt device 1. Each cable gripper 201 is equipped with a connecting rod 202. Each connecting rod 202 is provided with a curved part 203 that allows the entire clamping device 2 to pass through each fixed pulley. A crossbeam 204 is installed between the two connecting rods 202 and at one end close to the ground. A fixed rod 205 is installed vertically downward at the middle of the crossbeam 204 and perpendicular to the crossbeam 204. A shaft 206 is installed on the fixed rod 205, which can move up and down on the fixed rod 205 and is perpendicular to the fixed rod 205 and parallel to the horizontal plane of the ground. The two ends of the shaft 206 are respectively equipped with release wheels 207 through bearings. A vertices of parallelogram connecting structures 208 are symmetrically installed on both sides of the shaft 206. The other three vertices of the two parallelogram connecting structures are connected by a fixed shaft, thereby forming a parallelogram frame structure. A fixed shaft is installed on a fixed rod 205 between the diagonals corresponding to the apex of the two parallelogram linkage structures 208 mounted on shaft 206, and the fixed shaft can move up and down on the fixed rod 205. A spring 209 is fitted on the fixed rod 205, with one end of the spring 209 mounted on shaft 206 and the other end mounted on the fixed shaft. A blocking part 210 is provided at the end of the fixed rod 205 near the ground to prevent the parallelogram frame structure from falling off. The two pairs of rods of the two parallelogram linkage structures 208 near the ground extend downward along their respective rods, and the ends of the two pairs of downward extending rods near the ground are provided with curved parts that cooperate with the transport trolley 3.

[0038] Preferably, the blocking part 210 is a nut, which is threadedly connected to the end of the fixed rod 205 near the ground. This allows the adjustment of the insertion depth of the nut on the fixed rod 205 to adjust the distance between the fixed shaft and the shaft 206 of the parallelogram linkage frame structure installed on the fixed rod 205, thereby adjusting the clamping timing of the clamping device 2 and effectively preventing the parallelogram linkage frame structure from falling off the fixed rod 205.

[0039] The automatic luggage transport device also includes pressure rails 4 on the walls on both sides of the conveyor belt 104, which are respectively installed in the upper and lower sections of the corridor. The pressure rails 4 are quadrangular truncated pyramids formed by two parallel and congruent isosceles trapezoids. The length of the plane of the end of the pressure rail 4 away from the ground is greater than the length of the plane of the end of the pressure rail 4 near the ground, so that the detachment wheels 207 installed at both ends of the shaft 206 can compress the spring 209 through the inclined surface of the pressure rail 4, thereby causing the two pairs of downwardly extending rods of the parallelogram linkage frame structure to move in opposite directions.

[0040] The transport trolley 3 includes a body 301, a hook 302 disposed on the upper end face of the body 301, and a hook 303 disposed in a recess 305 on the lower end face of the body 301 for hanging suitcases. The hook 302 is formed by bending two parallel plates in a direction away from each other, so as to cooperate with the bent part at the lower end of the parallelogram linkage frame structure to realize the connection and separation of the clamping device 2 and the transport trolley 3. Vertically downwardly arranged on the hook 303 are an upper balance spring 306, a piston 307, a lower balance spring 308, a support plate 309, and a positioning block 311. The upper balance spring 306 is fitted on the rod of the hook 303, with one end in contact with the top surface of the recess 305 and the other end in contact with the piston 307. The piston 307 and the hook The piston 307 is fixedly connected to the ground end of the hook 303. The lower balance spring 308 is mounted on the hook 303. The lower balance spring 308 is placed on the support plate 309. The support plate 309 is fixed to the lower plane of the vehicle body 301. The hook 303 can move relative to the support plate 309. The position block 311 is fixedly connected to the hook 303. When the transport trolley 3 is not carrying a luggage box, the plane of the position block 311 near the ground is on the same horizontal plane as the lower end of the vehicle body 301. This allows the position block 311 to move downward when the hook 303 is affected by gravity. The sensor 310 installed on the lower end of the vehicle body 301 can detect the displacement of the position block 311 and thus determine whether the luggage box has been removed.

[0041] The transport trolley 3 has a guide rail 5 on each side of its body 301 along its path. The transport trolley 3 has two pairs of rollers 304 on each side of its body 301 via shafts 206 and bearings, so that the two pairs of rollers 304 on each side of the transport trolley 3 are clamped onto the guide rail 5 on the same side.

[0042] Furthermore, the two pairs of rollers 304 on the upper sides of the vehicle body 301 of the transport trolley 3 have conical treads with inner rims, which are responsible for bearing loads and smoothly passing through the circular track; the two pairs of rollers 304 below are cylindrical, which is intended to increase the contact friction with the conveyor belt 6 and better transmit traction force.

[0043] Below the guide rail 5, there are two conveyor belts 6, located at the upper end of the corridor, the box-retrieving area 7, and the lower end of the corridor, the box-retrieving area 8, respectively. The belt body of the conveyor belt 6 away from the ground is in contact with the two pairs of cylindrical rollers 304 below the transport trolley 3.

[0044] Preferably, the installation distance between each clamping device 2 is greater than the transport distance of the conveyor belt 6.

[0045] Furthermore, an arc-shaped guide groove 401 is provided on the end face of the pressure rail 4 near the ground. The arc-shaped guide groove 401 bends towards the side closer to the wall, with wider grooves at both ends and narrower grooves in the middle. The guide rail 5 below the end face of the pressure rail 4 near the ground is an arc-shaped guide rail 501, which bends away from the wall. Correspondingly, the conveyor belt 6 below it is an arc-shaped conveyor belt 601. This allows the clamping device 2 to be laterally misaligned with the transport trolley 3 after the transport trolley 3 is detached, thus separating the clamping device 2 from the transport trolley 3. During clamping, the trolley hook 302 inserts into the curved part of the clamping device 2, which also facilitates the clamping device 2 in clamping the transport trolley 3.

[0046] Combination Figure 7 The diagram further illustrates the control relationship and the movement process of the overall device of the present invention;

[0047] First of all Figure 7 The auxiliary diagram shown below further illustrates the operating principle. Figure 7 The arrow above rail 4 indicates the direction of the trolley's movement.

[0048] 1. When a pedestrian hangs a suitcase, after the transport trolley 3 stops below the corresponding rail 4 in the hanging area 8 at the bottom of the corridor, the sensor installed on the wall or other location that can detect the arrival of the transport trolley 3 at the stopping point A402 will start timing after the transport trolley 3 arrives at the stopping point A402. The control center will also remind the pedestrian to hang the suitcase via voice broadcast. After the pedestrian hangs the suitcase, the position block 311 in the transport trolley 3 will be pulled out and block the sensor 310 from receiving signals. The control center will then determine that there is a suitcase hanging on the transport trolley 3. At the same time, after the trolley's dwell time meets the preset dwell time in the control center, the control center will output an instruction to the conveyor belt 6 to transport the transport trolley 3 to the stopping point B403. The clamping device 2 will then move to the location to clamp the suitcase and move synchronously with it, thus completing the automatic transport of the suitcase.

[0049] 2. When a pedestrian retrieves a box, after the transport trolley 3 stops below the stop point A402 of the corresponding rail 4 in the box retrieval area 7 at the top of the corridor, the sensor installed on the wall or other location that can detect the arrival of the transport trolley 3 at the stop point A402 will detect the arrival of the transport trolley 3. After the sensor receives the signal, the sensor will transmit the signal to the control center. After the dwell time of the transport trolley reaches the dwell time preset by the control center, the control center will output an instruction to the conveyor belt 6 to transport the transport trolley 3 to the position below the stop point B403, and wait for the clamping device 2 behind to move to the position to clamp it and move synchronously with the clamping device 2.

[0050] 3. When retrieving a box (without a suitcase), sensor 310 can detect a signal, which is transmitted to the control center. At the same time, after the dwell time of the transport trolley 3 at the stop point A402 reaches the dwell time preset by the control center, the control center outputs a running command to the conveyor belt device 6 to move the transport trolley 3 forward, waiting for the rear clamping device 2 to run to that point to clamp it and run synchronously with the clamping device 2.

[0051] 4. When a suitcase is retrieved (there is a suitcase but no one is retrieving it), after the transport trolley 3 arrives at the stopping point A402 of the upper suitcase retrieval area 7, the sensor installed at that point, which can detect the arrival of the transport trolley 3 at the upper suitcase retrieval area 7, detects the signal and transmits the signal to the control center. The control center then starts timing. When the dwell time of the transport trolley 3 is greater than or equal to the dwell time preset by the control center, and the sensor 310 can no longer detect the signal, it is determined that the pedestrian has not yet retrieved the suitcase. The control center then issues a stop operation command to the entire system, and the entire automatic suitcase transport device stops operating until the suitcase is retrieved and the sensor 310 can detect the signal. Only then will the control center restart the automatic suitcase transport device.

Claims

1. An automatic luggage transport device for stairwells, characterized in that, The system includes a conveyor belt device (1) parallel to the stairwell slope, multiple clamping devices (2) equidistantly arranged on the belt body (104) of the conveyor belt device (1), and a transport trolley (3) for transporting suitcases on each clamping device (2). Each clamping device (2) includes two grippers (201) fixedly mounted on the belt body (104) of the conveyor belt device (1). Each gripper (201) is equipped with a connecting rod (202). Each connecting rod (202) is provided with a curved part (203) that allows the entire clamping device (2) to pass through each fixed pulley. A crossbeam (204) is installed between the two connecting rods (202) and at one end near the ground. A vertical beam is installed at the middle of the crossbeam (204) and perpendicular to the crossbeam (204). A fixed rod (205) is installed below, and a shaft (206) that can move up and down on the fixed rod (205) and is perpendicular to the fixed rod (205) and parallel to the horizontal plane of the ground is installed on the fixed rod (205). The two ends of the shaft (206) are respectively equipped with detachable wheels (207) through bearings. On both sides of the shaft (206), one vertex of a parallelogram connecting structure (208) is symmetrically installed. The other three vertexes of the two parallelogram connecting structures are connected by a fixed shaft, thereby forming a parallelogram frame structure. The fixed shaft installed between the diagonals corresponding to the vertexes of the two parallelogram connecting structures (208) installed on the shaft (206) is installed on the fixed rod (205), and its fixed shaft can move up and down on the fixed rod (205).A spring (209) is fitted onto the fixed rod (205). One end of the spring (209) is mounted on the shaft (206), and the other end is mounted on the fixed shaft. A blocking part (210) to prevent the parallelogram frame structure from falling off is provided at the end of the fixed rod (205) near the ground. The two pairs of rods of the two parallelogram connecting rod structures (208) near the ground extend downward along the rods they belong to. The ends of the two pairs of downward extending rods near the ground are provided with curved parts that cooperate with the transport trolley (3). The transport trolley (3) includes a car body (301), a hook (302) provided on the upper end face of the car body (301), and a recessed hole provided on the lower end face of the car body (301). (305) The hook (303) used for hanging suitcases has a lifting hook (302) formed by bending two parallel plates in a direction away from each other, so as to cooperate with the bent part at the lower end of the parallelogram linkage frame structure to realize the connection and separation of the clamping device (2) and the transport trolley (3). On the hook (303), an upper balance spring (306), a piston (307), a lower balance spring (308), a support plate (309), and a positioning block (311) are arranged vertically downward. The upper balance spring (306) is fitted on the rod of the hook (303), with one end in contact with the top surface of the concave hole (305) and the other end in contact with the piston (307). The piston (307) and the hook (305) are connected to each other. 03) Fixed connection: The piston (307) is connected to a lower balance spring (308) fitted on the hook (303) at the end near the ground. The lower balance spring (308) is placed on the support plate (309) at the end near the ground. The support plate (309) is fixed to the lower plane of the vehicle body (301). The hook (303) can move relative to the support plate (309). Its indicator block (311) is fixedly connected to the hook (303). When the transport trolley (3) is not carrying a luggage box, the plane of the end of the indicator block (311) near the ground is on the same horizontal plane as the lower end of the vehicle body (301), so that when the hook (303) is affected by gravity, the indicator block (311) can be displaced downward, thereby being installed on the vehicle body. (301) The sensor (310) on the lower end face can detect the displacement of the position block (311) and thus determine whether the suitcase has been removed; the transport trolley (3) has a guide rail (5) on both sides of the body (301) and along the path of the trolley, and the transport trolley (3) has two pairs of rollers (304) on both sides of the body (301) through shaft (206) and bearing, so that the two pairs of rollers (304) on both sides of the body (301) of the transport trolley (3) clamp on the guide rail (5) on the same side. The upper two pairs of rollers (304) on both sides of the body (301) of the transport trolley (3) have a conical tread surface with an inner rim, and the lower two pairs of rollers (304) are cylindrical.Below the guide rail (5) is a conveyor belt (6), of which there are two, located at the upper end of the corridor (7) and the lower end of the corridor (8), respectively. The belt of the conveyor belt (6) away from the ground is in contact with two pairs of cylindrical rollers (304) below the transport trolley (3). A guide groove is provided on the corridor slope directly below the hook (303) along the direction of hook travel, including the upper end of the corridor (7) and the lower end of the corridor (8) respectively. The conveyor belt device (1) has pressure rails (4) on both sides of the belt body (104). The pressure rails (4) are quadrangular truncated pyramids formed by two parallel and congruent isosceles trapezoids. The plane length of the end of the pressure rail (4) away from the ground is greater than the plane length of the end of the pressure rail (4) near the ground. Below the conveyor belt body (104) corresponding to the pressure rail (4), there are closely arranged support pulleys (105) to prevent the conveyor belt body (104) from being pulled down when the pressure rail (4) presses down on the disengagement pulley (207).

2. The automatic luggage transport device for stairwells as described in claim 1, characterized in that, The conveyor belt device (1) includes an active fixed pulley (101), a driven fixed pulley (102), and a guide fixed pulley (103). The active fixed pulley (101) and the driven fixed pulley (102) are respectively installed on the walls of the upper end of the corridor (7) and the lower end of the corridor (8), and are parallel to the horizontal plane of the ground where the walls of the upper end of the corridor (7) and the lower end of the corridor (8) are located. The guide fixed pulley (103) is respectively installed on the wall at the junction of the upper end of the corridor (7) and the lower end of the corridor (8) with the corridor slope, so that the two guide fixed pulleys (101, 102, and 103 are connected. The conveyor belt device (1) between 03) is parallel to the stairwell slope. The driven fixed pulley (102) and the active fixed pulley (101) are parallel to the ground level of the upper end of the stairwell (7) and the lower end of the stairwell (8) respectively. The conveyor belt device (1) between them and the guide fixed pulley (103) on the same horizontal plane is parallel to the ground level of the upper end of the stairwell (7) and the lower end of the stairwell (8). Multiple guide fixed pulleys (103) are evenly distributed on the wall corresponding to the conveyor belt device (1) (104) parallel to the stairwell slope. The conveyor belt device (1) (104) is made of steel cable.

3. The automatic luggage transport device for stairwells as described in claim 1, characterized in that, The blocking part (210) is a nut, which is threadedly connected to the end of the fixing rod (205) near the ground.

4. The automatic luggage transport device for stairwells as described in claim 1, characterized in that, The installation distance between each clamping device (2) is greater than the transport distance of the conveyor belt (6).

5. The automatic luggage transport device for stairwells as described in claim 1, characterized in that, An arc guide groove (401) is provided on the end face of the pressure rail (4) near the ground. The arc guide groove (401) bends towards the side closer to the wall. The groove width is large at both ends and small in the middle. The guide rail (5) below the end face of the pressure rail (4) near the ground is an arc guide rail (501). The arc guide rail (501) bends away from the wall. The corresponding conveyor belt (6) below it is an arc conveyor belt (601).

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