Passenger stair climbing and descending intelligent luggage conveying device

Abstract

The utility model relates to a kind of passenger up and down stairs intelligent luggage conveying device, including support frame, conveying unit, pressure sensor, emergency stop switch and unpowered roller conveyor;Support frame is fixed to ground along the trend of stairs, and there is link recess on the longitudinal beam of support frame, and pressure sensor is fixed in link recess;Conveying unit is connected with connecting recess by movable support, and several conveying units are arranged along the longitudinal direction of support frame, forming entire conveying path, and each conveying unit is relatively independent, so that each piece of luggage moves relatively independently;The front end of conveying unit is motor-driven driving drum, and motor is connected with pressure sensor and emergency stop switch through circuit, and emergency stop switch is fixed on support frame, and unpowered roller conveyor is placed close to the last conveying unit, as the area of luggage temporary stay and passenger taking luggage. Through the device, passenger luggage can be conveyed upwards or downwards along the conveying unit, and each piece of luggage does not interfere with each other, and can be controlled by passenger.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment, and in particular to an intelligent luggage conveying device for passengers going up and down stairs. Background Technology

[0002] In public places such as train stations and subway stations, passengers often need to carry their luggage up and down stairs when entering, exiting, or transferring, which is very inconvenient, especially when the luggage is heavy and difficult to move. To facilitate passengers carrying luggage up and down stairs, there are generally two methods: escalators and ramps. Escalators are motor-driven devices that synchronously transport passengers and luggage; they are efficient and safe, and many newly built train stations and subway stations have them. However, escalators have disadvantages such as taking up a lot of space, high cost, and high power consumption. Therefore, most staircases only have one-way (up or down) escalators. Furthermore, installing new escalators on existing staircases presents problems of insufficient space and difficult construction. Ramps are barrier-free ramps located on the side of the stairs. They have a simple structure, take up little space, and have no operating costs, but their disadvantages are obvious: only wheeled suitcases or small trolleys can use them, and passengers need to extend their hands a certain distance to control the luggage's trajectory. Luggage can easily slide off the ramp, and passengers can easily lose their balance. Therefore, most passengers prefer to carry their luggage rather than use the ramp.

[0003] The invention patent application publication number CN 110641906 A discloses a luggage transport system for passengers going down stairs, including a support frame and transport units. Several transport units are fixed on the support frame. This system is a luggage downward transport device that uses the friction between the conveyor belt and the pallet to control the movement of luggage. By selecting appropriate materials and slopes, the friction is ensured to be greater than the downward force of the luggage. If the luggage needs to go down, the passenger needs to push the luggage down by hand. The disadvantages of this system are: (1) it is only applicable to luggage going down; (2) the passenger needs to apply a downward pushing force for the luggage to move, which lacks intelligence; (3) the inclination angle of different stairs and different parts of the same stairs is different, and the amount of pushing force applied by the passenger to move the luggage varies greatly. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing passenger luggage transport devices for stairs by providing a simple intelligent luggage conveyor system. The system consists of several independently operating belt conveyor units, each controlled by an independent motor controlled by sensors. Each conveyor unit remains stationary when empty (without luggage). When loaded, it automatically starts and transports luggage under the control of pressure sensors. The luggage moves sequentially along the conveyor units, eventually reaching the designated parking area. The luggage transport speed is the same as the passenger's movement up and down the stairs, moving synchronously. If a passenger encounters an obstruction while going up or down the stairs and needs to stop, an emergency stop switch can be used to halt the luggage's movement. Subsequent luggage items will also stop under the control of pressure sensors when obstructed, thus preventing trampling or mistaken luggage.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A smart luggage conveying device for passengers moving up and down stairs includes a support frame, conveying units, pressure sensors, an emergency stop switch, and a non-powered roller conveyor. The support frame is fixed to the ground along the stairs, with an adjustable slope that is essentially the same as the stairs. Connecting grooves are provided on the longitudinal beams of the support frame, and pressure sensors are fixed within these grooves. The conveying units are connected to the connecting grooves via movable supports. Several conveying units are arranged longitudinally along the support frame, forming the entire conveying path. Each conveying unit is relatively independent, allowing each piece of luggage to move relatively independently. An active roller is installed at the front end of each conveying unit, driven by a motor. The motor is connected to the pressure sensor and the emergency stop switch via a circuit. The emergency stop switch is fixed to the support frame, and each conveying unit corresponds to one emergency stop switch. The first and last sections may not have an emergency stop switch.

[0007] The single-section, unpowered roller conveyor is placed immediately next to the last conveyor unit to receive incoming luggage, serving as a luggage storage area and a passenger retrieval area. The entire system is powered by an electric motor, which drives the drive roller to rotate, thereby rotating the belt and moving the luggage placed on it.

[0008] The support frame consists of a support bracket and an outer shell. The support bracket is made of light steel or structural steel and comprises longitudinal beams, support legs, and connecting grooves. Each longitudinal beam consists of two parallel beams spaced a certain distance apart, fixed to the support legs. The support legs are fixed to the stair floor. The longitudinal beams and support legs form a stable frame structure. The connecting grooves, located on the longitudinal beams, are rectangular grooves with a smooth horizontal bottom and vertical sidewalls. The conveying unit is connected to the connecting grooves via movable hinge supports. The support frame is installed on the side facing the stairs (preferably the right side for easy right-hand carrying of luggage). The outer shell is located outside the support bracket and serves as both a safety protection and decorative element. The longitudinal beams are installed according to the slope of the stairs and can be adjusted appropriately to maintain a suitable distance from the ground.

[0009] The conveyor unit is a belt conveyor mechanism. The entire conveyor system comprises several conveyor units, each an independent conveyor mechanism including a frame, belt, belt support plate or idler roller, drive roller, driven roller, bearing housing, side lugs, and movable hinge support. The frame is rectangular, and the belt support plate or roller is fixed to the frame; it can be a flat plate, a roller, or a combination of both. The drive roller and driven roller are fixed to the front and rear ends of the frame via bearing housings (the end in the direction of luggage movement is the front end). The drive roller is driven by a motor, which can be an internal motor (i.e., an electric roller) or an external motor. The external motor is fixed to the frame and connected to the drive roller via a chain. The motor is connected to a pressure sensor and an emergency stop switch via a series circuit. For conveying luggage up stairs, the drive roller can only rotate in the direction of luggage movement, moving the luggage upwards; it cannot reverse to prevent the luggage from moving backwards. The distance between the drive and driven rollers can be adjusted by adjusting the position of the bearing housings, thereby adjusting the belt tension. The belt is made of materials such as PVC and PE and can be a regular belt or a synchronous belt, forming a closed loop around the drive and driven rollers and the support plate or idler roller. The side lugs are fixed to the outer sides of the front and rear ends of the frame. Each conveyor unit has four side lugs. The side lugs are connected to the support frame via movable hinges and connecting grooves. One of the connecting grooves (usually the one corresponding to the rear side lug) has a pressure sensor installed on its bottom surface and rear side wall. The load carried by the conveyor unit is transmitted from the side lug to the pressure sensor in the connecting groove through the movable hinge. The pressure sensor controls the motor to rotate, and the motor controls the movement of the luggage.

[0010] The pressure sensors include a bottom pressure sensor and a side wall pressure sensor, fixed horizontally and vertically to the bottom surface of the connecting groove and the rear side wall (the side wall opposite to the direction of luggage movement), respectively, to measure the pressure values ​​of the bottom surface and side wall of the connecting groove. Each conveyor unit requires only one side lug (usually the rear side lug) with a corresponding pressure sensor in its connecting groove. Both pressure sensors are connected in series with the motor, and each pressure sensor acts as a circuit control switch, controlling the motor. Considering the weight of the conveyor unit and motor startup, both pressure sensors are set with an initial pressure value. When the conveyor unit is empty, the pressure of the bottom pressure sensor is less than this initial value, thus disconnecting the circuit. Conversely, when carrying luggage, the pressure is greater than the initial value, thus connecting the circuit. For the side wall pressure sensor, if the conveyor unit is only subjected to gravity (empty or carrying and conveying luggage), the pressure value is less than the initial value, thus connecting the circuit. Conversely, when there is a backward tilting or horizontal force, the pressure value is greater than the initial value, thus disconnecting the circuit.

[0011] The emergency stop switch is fixed on the support frame and connected in series with the motor through the circuit. It can adopt a push-button structure design. When no one presses it, the circuit is connected. When the passenger presses it down, the circuit is disconnected. When the hand is released, the button springs back and the circuit is reconnected.

[0012] The non-powered roller conveyor is an independent non-powered conveying device with only one section. It is placed horizontally next to the last conveying unit. When conveying luggage upwards, it is located at the top of the stairs, and when conveying luggage downwards, it is located at the bottom of the stairs. Its width and height are basically the same as the last conveying unit, serving as an area for luggage to pause and for passengers to retrieve their luggage.

[0013] Furthermore, the force relationship between the conveying unit and the pressure sensor is as follows: The external force, such as the weight of the luggage, borne by the conveying unit is transmitted to the pressure sensor in the connecting groove through the movable hinge support. The movable hinge support is rectangular in shape, with rollers at the bottom and vertical side walls. It is connected to the side ears via bearings and placed in the connecting groove. The side walls do not press against each other, and the bottom rollers can roll freely on the bottom sensor, resulting in smooth surface contact. When the conveying unit is subjected to gravity (vertically downward), such as the weight of the conveying unit itself and the weight of the luggage, pressure is only generated on the bottom pressure sensor in the connecting groove, and no pressure is generated on the side wall pressure sensor. If the conveying unit is subjected to a backward tilting or horizontal force, the side wall pressure sensor bears the pressure. By reasonably setting the initial value of the sensor, for the bottom pressure sensor, when unloaded, the pressure value is less than the initial value, and it is in a disconnected circuit state; when carrying luggage, the pressure is greater than the initial value, and it is in a connected circuit state. For the side wall pressure sensor, when the conveying unit is subjected to tilting or horizontal external forces, the pressure is greater than the initial value, and it is in a disconnected circuit state; otherwise, the pressure value is less than the initial value, and it is in a connected circuit state.

[0014] Furthermore, the operation of the conveying unit is as follows:

[0015] The motor drives the active roller to rotate, which in turn drives the belt to rotate. The luggage on the belt moves forward accordingly, thus realizing the transport of luggage by the transport unit. The motor, bottom pressure sensor, side wall pressure sensor and emergency stop switch are connected in series. If any part is disconnected, the motor circuit is disconnected and the motor stops. The transport unit mainly operates in four situations: (1) Initial situation with no luggage and no load. The transport unit only has its own weight. The pressure value of the bottom pressure sensor is less than the initial value, so the circuit is disconnected. The pressure of the side wall pressure sensor is less than the initial value, so the circuit is connected. The emergency stop switch is in the connected state, the motor circuit is in the disconnected state, the motor does not rotate, and the transport unit belt is stationary.

[0016] Normal baggage carrying conditions. Baggage is carried on the conveyor belt. The weight of the baggage causes the pressure value of the bottom pressure sensor to exceed the initial value, connecting the circuit. The side wall pressure sensors and the emergency stop switch remain connected. The motor circuit is connected and rotates, and the baggage moves with the rotation of the belt.

[0017] This refers to a situation where a passenger presses the emergency stop switch when their movement is obstructed. When a passenger and their luggage are moving up or down stairs, if the passenger's movement is obstructed and they press the emergency stop switch, the circuit is disconnected, the motor stops, and the luggage immediately stops beside the passenger.

[0018] (4) Situation where baggage is obstructed from moving forward. If the passenger in front presses the emergency stop switch, causing the corresponding conveyor belt to stop and the baggage to stop moving, there may be three situations in which the baggage on the following conveyor unit moves forward: (1) The baggage stops at the rear half of the conveyor unit and the baggage behind it will collide with it; (2) The baggage stops at the front half of the conveyor unit and moves forward, generating sliding friction between the baggage and the exposed belt; (3) Both of the above situations exist at the same time. In all the above situations, the conveyor unit where the baggage behind is located will be subjected to a backward reaction force, which will increase the pressure of its side wall pressure sensor and exceed the initial value, causing the circuit to break, the motor to stop, and the corresponding baggage to stop moving.

[0019] To illustrate the baggage transport process, take the passenger's luggage up the stairs as an example: (1) Initial state: There is no luggage on each transport unit. The pressure value of the bottom pressure sensor is less than the initial value, the circuit is disconnected, the pressure value of the side wall pressure sensor is less than the initial value, and it is in a connected state. The emergency stop switch is in a connected state. According to the characteristics of the series circuit, the motor does not turn because the circuit is in a disconnected state, and the conveyor belt is stationary.

[0020] When a passenger places their luggage on the bottom first conveyor unit, the pressure value of the pressure sensor on the bottom surface of the luggage exceeds the initial value due to its weight, thus connecting the circuit. The side wall pressure sensors and emergency stop switch remain unaffected and connected. As a result, the motor circuit is connected and rotates, driving the belt and luggage to move upwards, gradually moving the luggage to the adjacent second conveyor unit.

[0021] As the luggage gradually moves to the second conveyor unit, part of its weight is borne by this unit, causing the pressure sensor on its bottom to exceed its initial value. This activates the circuit, starts the motor, and the luggage continues moving from the first conveyor unit to the third. Simultaneously, when the luggage has completely left the first conveyor unit, the pressure sensor on its bottom decreases and falls below its initial value, disconnecting the circuit, stopping the motor, and halting the belt movement. This completes the luggage transfer process from the first to the second conveyor unit. If new luggage is subsequently placed on the first conveyor unit, the motor restarts, continuing to transport luggage upwards.

[0022] In this manner, the luggage moves from the second conveyor unit to the third, fourth, and so on, passing through the last conveyor unit before finally arriving at and stopping on the unpowered roller conveyor. Passengers then retrieve their luggage, completing the luggage transport process.

[0023] (5) If a passenger is blocked while going up the stairs and stops, for ease of description, let's assume they stop next to the fifth conveyor unit. To keep their luggage nearby, they press the emergency stop switch, disconnecting the motor circuit of the fifth conveyor unit, stopping the belt and the luggage on it. The luggage on the fourth conveyor unit continues to move towards the fifth conveyor unit. When the luggage is obstructed (by luggage in front or by sliding friction), the fourth conveyor unit experiences a backward reaction force. This force causes the pressure sensor on its side wall to exceed its initial value, disconnecting its motor circuit, stopping the motor of the fourth conveyor unit, and stopping the luggage on it. This process continues until all the luggage stops in an orderly manner, and the passenger stops accordingly, thus avoiding trampling or taking the wrong luggage while chasing after it. If the passenger who was blocked at the front can continue forward and releases the emergency stop switch, the motor circuit is connected, and the belt and luggage on the fifth conveyor unit can move forward again. The reaction force on the luggage disappears, the pressure on the side wall pressure sensor decreases and becomes less than the initial value, the motor circuit is reconnected, and the luggage moves forward, restoring normal luggage transport.

[0024] This invention employs a separate conveyor unit and utilizes sensors to control the motor, achieving intelligent luggage conveying. Compared with existing technologies, it has the following advantages:

[0025] 1. High level of intelligence and simple operation. Passengers place their luggage on the conveyor, and the luggage will automatically move along the conveyor unit section by section without manual operation. If luggage in front stops for any reason, the luggage behind will automatically stop in an orderly manner. It is highly intelligent and easy to operate.

[0026] 2. Safe and reliable. Adopting a separate conveyor unit structure, luggage is always near the passenger. Controlled by emergency stop switches and sensors, luggage from the passenger in front stops, and luggage from the passenger behind stops in an orderly manner, preventing trampling and mistaking of luggage while passengers are chasing after it.

[0027] 3. Easy to install and space-saving, suitable for retrofitting existing staircases. The device is about the width of a suitcase and is installed on the side of the staircase, taking up very little space; its width is less than 1 / 3 of an escalator. When retrofitting an existing staircase, it can be installed directly on the side of the staircase without any additional civil engineering work.

[0028] 4. Manufacturing and operating costs are much lower than those of escalators. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0030] Figure 2 for Figure 1 Enlarged view of area A in the image;

[0031] Figure 3 This is a plan view of the conveying unit in an embodiment of the present invention;

[0032] Figure 4 This is a side view of the conveying unit in an embodiment of the present invention;

[0033] Figure 5 This is a cross-sectional view of the conveying unit in an embodiment of the present invention.

[0034] In the figure, there is a support frame 1, a longitudinal beam 101, a support foot 102, a connecting groove 103, a conveying unit 2, a frame 201, a belt support plate or support roller 202, a drive roller 203, a driven roller 204, a belt 205, a bearing seat 206, a side lug 207, a movable support 208, a pressure sensor 3, a bottom pressure sensor 301, a side wall pressure sensor 302, an emergency stop switch 4, and a non-powered roller conveyor 5. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0036] Reference Figure 1 , Figure 2 A smart luggage conveying device for passengers going up and down stairs includes a support frame 1, a conveying unit 2, a pressure sensor 3, an emergency stop switch 4, and a non-powered roller conveyor 5. The support frame 1 is installed and fixed to the stair floor along one side of the stairs, with a slope approximately the same as the stairs. The longitudinal beam 101 of the support frame 1 has a connecting groove 103, within which the pressure sensor 3 is fixed. The conveying unit 2 is fixed to the connecting groove 103 via a movable support 208. Several sections of the conveying unit 2 are arranged longitudinally along the support frame 1, with a certain gap between them. Each section is relatively independent, allowing each piece of luggage to move relatively independently. Each section of the conveying unit 2 has a drive roller 203 at its front end, driven by a motor. The motor 3 is connected in series with the pressure sensor 3 and the emergency stop switch 4 via a circuit. The emergency stop switch 4 is fixed to the support frame 1. Each section of the conveying unit has one drive roller; the first and last sections are optional. The non-powered roller conveyor 5 consists of only one section, placed immediately next to the last conveying unit, and is used to receive the conveyed luggage, serving as a temporary luggage storage area and a space for passengers to retrieve their luggage. The entire device is powered by an electric motor, which drives the drive roller to rotate, thereby rotating the belt and moving the luggage forward.

[0037] The support frame 1 includes a bracket and an outer shell. The bracket is made of light steel or structural steel and consists of longitudinal beams 101, support legs 102, and connecting grooves 103. The longitudinal beams 101 consist of two parallel beams about 50cm apart (slightly larger than the width of a large suitcase laid flat) or 30cm apart (slightly larger than the width of a suitcase placed upright on its side), which can meet the transportation of large suitcases. The longitudinal beams 101 are fixed to the support legs 102, and the support legs 102 are fixed to the stair floor. The longitudinal beams 101 and the support legs 102 form a stable frame structure. The connecting grooves 103 are located on the longitudinal beams 101 and are rectangular grooves with a smooth horizontal bottom and smooth vertical sidewalls. The side ears 207 of the conveying unit 2 are connected to the connecting grooves 103 through movable hinge supports 208. Each section of the conveying unit 2 corresponds to two connecting grooves 103 on each of the left and right longitudinal beams 101. Support frame 1 is installed on the side of the stairs (preferably on the right side for easy right-hand operation or loading / unloading of luggage). The outer shell is located on the outside of the support frame, serving as both a safety protection and decorative shell. The longitudinal beam 101 is installed according to the slope of the stairs and can be adjusted appropriately, maintaining a distance of 40-80cm from the ground.

[0038] Reference Figure 3 , Figure 4 , Figure 5The conveying unit 2 is a belt conveyor mechanism. The entire conveying device consists of several conveying units 2. Each conveying unit 2 is an independent conveying mechanism, 30-60cm wide and about 100cm long. It includes a frame 201, a belt support plate or support roller 202, a drive roller 203, a driven roller 204, a belt 205, a bearing seat 206, side ears 207, and a movable hinge support 208. The frame 201 is rectangular. The belt support plate or support roller 202 is a flat plate, a roller, or a combination of both, and is fixed to the frame 201. The drive roller 203 and the driven roller 204 are fixed to the front and rear ends of the frame 201 (the end in the direction of luggage movement is the front end) through the bearing seat 206. The drive roller 203 can be an electric roller or driven by an external motor fixed to the frame via a chain. The motor is connected in series with the pressure sensor 3 and the emergency stop switch 4. When transporting luggage up stairs, the drive roller 203 can only rotate in the direction of luggage movement, moving the luggage upwards. It cannot reverse direction to prevent the luggage from moving backwards. The positions of the drive and driven roller bearing seats 206 are adjustable. Adjusting the position of the bearing seats 206 changes the distance between the drive and driven rollers, thereby adjusting the tension of the belt 205. The belt 205 is made of materials such as PVC and PE and can be a regular belt or a synchronous belt. It forms a closed loop by passing around the drive roller 203, the driven roller 204, and the support plate or support roller 202. Luggage is placed on the belt 205 and moves with the rotation of the belt, realizing luggage transport. Each conveyor unit has four side ears 207, which are fixed to the front and rear ends of the outer side of the frame 201. The side ears 207 are connected to the connecting groove 103 of the support frame through the movable support 208. A pressure sensor 3 is fixed to the bottom surface of the connecting groove and the rear side wall of the side ear 207 located at the rear end. The load carried by the conveying unit 2 is transmitted from the side lug 207 to the pressure sensor 3 in the connecting groove through the movable hinge support 208. The pressure sensor 3 controls the rotation of the motor.

[0039] The pressure sensor 3 includes a bottom pressure sensor 301 and a side wall pressure sensor 302, which are fixed horizontally and vertically to the bottom surface and rear side wall (the side wall opposite to the direction of luggage movement) of the connecting groove 103, respectively, to measure the pressure values ​​of the bottom surface and side wall of the connecting groove. Each conveying unit 2 only needs to install a pressure sensor 3 in the connecting groove 103 corresponding to one side ear. The two pressure sensors are equivalent to two circuit control switches, which are connected in series with the motor 3 to control the rotation of the motor.

[0040] Considering factors such as the weight of the conveyor unit and motor startup, both pressure sensors are set with an initial pressure value. When the conveyor unit 2 is unloaded, the pressure of the bottom pressure sensor 301 is less than the initial value, thus disconnecting the circuit. Conversely, when carrying luggage, the pressure is greater than the initial value, thus connecting the circuit. For the side wall pressure sensor 302, if the conveyor unit 2 is only subjected to gravity (unloaded or carrying and conveying luggage), the pressure value is less than the initial value, thus connecting the circuit. When there is a backward tilting or horizontal force, the pressure value is greater than the initial value, thus disconnecting the circuit.

[0041] The emergency stop switch 4 is fixed on the longitudinal beam 101 of the support frame and is connected in series with the motor through the circuit. It adopts a spring-loaded push-button structure design. When no one presses it, the circuit is connected. When pressed down, the circuit is disconnected. When the hand is released, the button springs back and the circuit is reconnected.

[0042] The non-powered roller conveyor 5 is an independent non-powered conveying device with only one section. It is 1.0 to 2.0m long and is placed horizontally next to the last conveying unit. Its width and height are basically the same as the last conveying unit 2. It serves as an area for luggage to be temporarily stored and for passengers to retrieve their luggage.

[0043] Furthermore, the force relationship between the conveying unit 2 and the pressure sensor 3 is explained. External forces, such as the weight of luggage, borne by the conveying unit 2 are transmitted to the pressure sensor 3 within the connecting groove via the movable hinge support 208. The movable hinge support 208 is rectangular in shape, with rollers at the bottom and vertical sidewalls. It is connected to the side lugs 207 via bearings and placed within the connecting groove. The sidewalls do not press against each other, and the bottom rollers can roll freely on the bottom pressure sensor 301, resulting in smooth surface contact. When the conveying unit 2 is subjected to gravity (vertically downwards), such as the weight of the conveying unit itself and the weight of luggage, pressure is only applied to the bottom pressure sensor 301 within the connecting groove, not to the sidewall pressure sensor 302. If the conveying unit 2 is subjected to a backward tilting or horizontal force, the sidewall pressure sensor bears the pressure. By setting the initial values ​​appropriately, for the bottom pressure sensor 301, when unloaded, the pressure value is less than the initial value and it is in a disconnected circuit state; when carrying luggage, the pressure is greater than the initial value and it is in a connected circuit state. For the side wall pressure sensor 302, when the conveying unit 2 is subjected to a backward tilt or horizontal external force, the pressure is greater than the initial value and it is in a disconnected circuit state; otherwise, the pressure value is less than the initial value and it is in a connected circuit state.

[0044] Further, the working conditions of the conveyor unit 2. The motor is the power source for baggage conveying. The motor drives the belt 205 of the conveyor unit 2 to rotate, and the belt drives the baggage to move. The motor 3, the bottom pressure sensor 301, the side wall pressure sensor 302 and the emergency stop switch 4 are connected in series. If any one of them is disconnected, the motor will stop due to the circuit being disconnected, and the belt 205 and the baggage will stop moving. The working conditions of the conveyor unit 2 mainly include four types: (1) Empty condition without baggage, which is the initial state of the conveyor mechanism. The conveyor unit 2 only has its own weight. The pressure value of the bottom pressure sensor 301 is less than the initial value, so the circuit is disconnected. The pressure value of the side wall pressure sensor 302 is less than the initial value, so it is in the connected state. The emergency stop switch 4 is not pressed and is in the connected state. The entire circuit is in the disconnected state. The motor does not rotate and the belt 205 is stationary.

[0045] Normal baggage transport. Baggage is carried on the conveyor belt 205. The weight of the baggage causes the pressure value of the bottom pressure sensor 301 to exceed the initial value, thus connecting the circuit. At the same time, the side wall pressure sensor 302 and the emergency stop switch 4 remain in the connected state. The entire circuit is connected, the motor rotates, and the baggage moves with the belt, which is the normal baggage transport state.

[0046] Situation 4: Passengers press emergency stop switch 4. When their movement is obstructed, passengers need to temporarily stop their luggage beside them. They press emergency stop switch 4, the corresponding conveyor unit circuit is disconnected, the motor stops, and the luggage remains stationary beside the passenger.

[0047] (4) Obstruction of forward movement of luggage. If a passenger presses the emergency stop switch 4, the belt and luggage of the corresponding conveyor unit will stop. The luggage behind may touch the luggage in front or generate sliding friction with the stationary belt 205, or both may exist at the same time. The luggage movement will be obstructed by a backward external force, which will cause the corresponding conveyor unit to be subjected to a backward external force, causing the side wall pressure sensor 302 to be pressed, making its pressure value greater than the initial value, disconnecting the circuit, stopping the motor, and stopping the luggage movement.

[0048] Taking passengers going up the stairs as an example to illustrate the baggage transport process: (1) Initially, all transport units 2 are empty and there is no baggage. The pressure value of the bottom pressure sensor 301 is less than the set initial value, so the circuit is disconnected. The pressure of the side wall pressure sensor 302 is less than the initial value, so the circuit is connected. The emergency stop switch is connected, the entire circuit is disconnected, the motor does not turn, and the belt 205 does not turn.

[0049] When a passenger places their luggage on the bottom first conveyor unit 2, the pressure sensor 301 on the bottom surface of the conveyor unit 2 bears the downward force (including the weight of the conveyor unit itself and the weight of the luggage). When the pressure is greater than the initial value, the circuit is connected. However, the side wall pressure sensor 302 and the emergency stop switch 4 are not affected and remain connected. Therefore, the entire motor circuit is connected, the motor starts, the drive belt rotates, and the luggage moves upward, entering the normal luggage conveying state, gradually moving the luggage to the adjacent second conveyor unit 2.

[0050] When luggage crosses the first conveyor unit and partially moves to the second conveyor unit, the pressure value of the bottom pressure sensor 301 in the second conveyor unit increases and exceeds the initial value due to bearing part of the luggage's weight. This connects the circuit. The side wall pressure sensor 302 and the emergency stop switch 4 remain connected, and the motor circuit is activated, starting the luggage transport. With simultaneous transport from both conveyor units, the luggage gradually moves to the second conveyor unit and then towards the third conveyor unit. Simultaneously, when luggage leaves the first conveyor unit, the pressure of its bottom pressure sensor 301 decreases and falls below the initial value, disconnecting the circuit. The motor stops, and the belt stops rotating, thus completing the luggage transport process from the first to the second conveyor unit. If new luggage is subsequently placed on the first conveyor unit, the motor restarts, continuing to transport luggage upwards.

[0051] In this manner, the luggage moves from the second conveyor unit to the third conveyor unit, the fourth conveyor unit, and so on, and finally arrives at and stops on the unpowered roller conveyor 5 after passing through the last conveyor unit, where the passenger retrieves the luggage.

[0052] If a passenger is blocked from going up the stairs and needs to stay where they are, for the sake of simplicity, let's assume that the passenger stops next to the fifth conveyor unit. In order to keep their luggage next to them, they press the emergency stop switch 4 of the fifth conveyor unit, disconnecting the motor circuit and stopping the luggage. At this time, the luggage on the following conveyor units is still moving towards the fifth conveyor unit. When the luggage reaches the fourth conveyor unit and continues to move forward, three situations may occur: (1) the luggage in front stops at the rear half of the conveyor unit, and the luggage behind will directly contact it; (2) the luggage stops at the front half of the conveyor unit, and the luggage behind will generate sliding friction with the exposed and stationary belt 205; (3) both of the above situations exist simultaneously. In all of the above situations, the luggage behind will be subjected to a backward force, so that the fourth conveyor unit will be subjected to a backward reaction force. This force will increase the pressure of the side wall pressure sensor 302 and exceed the initial value, thereby disconnecting the circuit, stopping the motor of the fourth conveyor unit, and stopping the luggage. In this way, all the luggage behind will stop in an orderly manner, and the passenger can also stop in an orderly manner, avoiding trampling or taking the wrong luggage while chasing after the luggage. If passengers can continue to move forward despite being blocked ahead, release the emergency stop switch 4. The luggage on the fifth conveyor unit will move forward, the obstruction to the luggage behind will be relieved, the reaction force on the fourth conveyor unit will disappear, the pressure of the side wall pressure sensor 302 will decrease and be less than the initial value, the circuit will be connected, the motor will restart, and the luggage will resume normal movement.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A smart luggage conveying device for passengers going up and down stairs, comprising a support frame, a conveying unit, a pressure sensor, an emergency stop switch, and a non-powered roller conveyor; Its features are, The support frame is fixed to the ground along the staircase. The longitudinal beam of the support frame has a connecting groove, and the pressure sensor is fixed in the connecting groove. The conveying unit is connected to the connecting groove via a movable support. Several conveying units are arranged longitudinally along the support frame to form the entire conveying path. Each conveying unit is relatively independent, allowing each piece of luggage to move relatively independently. The front end of the conveying unit is provided with an active roller, which is driven by a motor. The motor is connected to the pressure sensor and the emergency stop switch through a circuit. The emergency stop switch is fixed on the support frame. Each conveying unit corresponds to one emergency stop switch. The unpowered roller conveyor is used to receive the luggage being transported.

2. The intelligent luggage conveying device for passengers going up and down stairs according to claim 1, characterized in that, The support frame includes a bracket and a housing; The support frame consists of longitudinal beams, support legs, and connecting grooves. The longitudinal beams are composed of two parallel beams spaced a certain distance apart, fixed to the support legs, which are fixed to the stair floor. The longitudinal beams and the support legs form a stable frame structure. The connecting grooves are located on the longitudinal beams and are rectangular grooves with smooth horizontal bottoms and vertical sidewalls. The conveying unit is connected to the connecting grooves via movable hinge supports.

3. A smart luggage conveying device for passengers going up and down stairs according to claim 1 or 2, characterized in that, The conveying unit is a belt conveyor mechanism. Each conveying unit is an independent conveying mechanism, including a frame, belt, belt support plate, driving roller, driven roller, bearing seat, side lugs and movable hinge support. The frame is rectangular, the belt support plate is fixed on the frame, and the driving roller and the driven roller are fixed to the front and rear ends of the frame through bearing seats; The drive roller is driven by a motor, and can be an electric roller or a motor connected to the drive roller via a chain. The motor is connected to the pressure sensor and the emergency stop switch via a series circuit.

4. The intelligent luggage conveying device for passengers going up and down stairs according to claim 1, characterized in that, The pressure sensor includes a bottom pressure sensor and a side wall pressure sensor, which are fixed horizontally and vertically to the bottom surface and rear side wall of the connecting groove, respectively, and are used to measure the pressure values ​​of the bottom surface and side wall of the connecting groove.

5. The intelligent luggage conveying device for passengers going up and down stairs according to claim 1, characterized in that, The unpowered roller conveyor is an independent unpowered conveying device, placed horizontally close to the last conveying unit. When conveying luggage upwards, the unpowered roller conveyor is located at the top of the stairs, and when conveying luggage downwards, it is located at the bottom of the stairs.

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