A detection conveyor that automatically adjusts the spacing between suitcases

Abstract

This utility model relates to an automatic luggage spacing adjustment detection conveyor, belonging to the technical field of logistics conveying equipment. It mainly includes a frame, a main conveyor belt, a secondary conveyor belt, conveyor roller sets, a lifting mechanism, a pushing mechanism, and a detection component. The main and secondary conveyor belts are mounted on the frame, and conveyor roller sets are installed between adjacent main conveyor belts. A base plate is fixedly installed at the bottom of the frame. The pushing mechanism is located at the bottom of the conveyor roller sets and is mounted on the base plate via the lifting mechanism, used to push luggage onto the main or secondary conveyor belt. The detection component detects the position information of the luggage and transmits the signal to the controller. This application achieves dynamic control of the luggage spacing through the differential speed design of the main and secondary conveyor belts, combined with the lifting and pushing mechanisms. The detection component monitors the position information of the luggage in real time, ensuring accurate and reliable control, thereby achieving automated luggage transfer and reducing the need for manual intervention.

Description

Technical Field

[0001] This utility model belongs to the technical field of logistics conveying equipment, specifically relating to a detection conveyor that automatically adjusts the spacing between suitcases. Background Technology

[0002] The main scenarios for baggage handling include airports and logistics hubs. Traditional conveyors widely used in these settings typically employ uniform-speed belt conveyors or roller conveyors to achieve continuous transport of luggage. To ensure that luggage can pass smoothly through subsequent security screening equipment (such as X-ray machines) during transport, appropriate spacing between luggage is necessary to avoid obstructing the scanning field and ensure complete identification of the items inside.

[0003] However, in actual operation, due to differences in the way suitcases are placed (such as manual placement or batch output from upstream equipment), their size, and weight, suitcases are easily stacked too tightly or spaced too close together. Traditional conveyors lack the ability to actively adjust the spacing between suitcases. When the spacing is too small, they cannot be automatically adjusted in time, usually requiring manual stopping to adjust the spacing and rescanning. This not only reduces the efficiency of subsequent security checks but may also cause congestion on the conveyor line. When the spacing is too large, it is difficult to effectively utilize conveyor line resources, affecting the overall conveying efficiency. Utility Model Content

[0004] To address the issues mentioned in the background section regarding insufficient luggage spacing adjustment capabilities, low automation, and reliance on manual intervention in actual operation of luggage conveyor systems, this invention provides an automatic luggage spacing adjustment detection conveyor. This conveyor, through a differential speed design between the main and auxiliary conveyor belts, combined with a pushing mechanism, a lifting mechanism, and detection components, can dynamically adjust the spacing based on the actual position and spacing of the luggage. This avoids the impact of tightly stacked or excessively spaced luggage on subsequent security inspection equipment, while simultaneously improving the overall operating efficiency of the conveyor line.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: An automatic luggage compartment spacing detection conveyor mainly includes a frame, a main conveyor belt, an auxiliary conveyor belt, a conveyor roller group, a lifting mechanism, a base plate, a pushing mechanism, and a detection component. The frame is equipped with three main conveyor belts driven by a main motor along its length. A first transition section and a second transition section are respectively provided between adjacent main conveyor belts. Conveyor roller groups are installed inside both the first and second transition sections. The conveyor roller groups are driven by a first motor, and adjacent conveyor rollers are connected by a chain transmission mechanism. The length of the conveyor rollers is greater than twice the width of the main conveyor belt. The auxiliary conveyor belt is installed on the frame, located on the side of the main conveyor belt, and is driven by an auxiliary motor. The front end of the auxiliary conveyor belt is connected to the conveyor roller group in the first transition section, and the rear end is connected to the conveyor roller group in the second transition section. The main motor, auxiliary motor, and first motor are respectively installed on the side of the frame and electrically connected to the controller installed on the frame via a frequency converter. The conveying speed of the main conveyor belt is greater than that of the auxiliary conveyor belt. The base plate is fixedly installed at the bottom of the frame. The pushing mechanism is located at the bottom of the conveyor roller group and is movably installed on the base plate via a lifting mechanism. In the raised state, the pushing mechanism is higher than the upper surface of the conveyor roller group and is used to push the suitcase from the conveyor roller group onto the main or auxiliary conveyor belt. The detection component is electrically connected to the controller and includes a first position sensor, a second position sensor, a first proximity switch, and a second proximity switch. The transmitting and receiving ends of the first and second position sensors are respectively installed on both sides of the main conveyor belt to form a beam detection area. The first position sensor is located in front of the first transition section, and the second position sensor is located in front of the second transition section. It is used to detect the position information of the suitcase and transmit the signal to the controller. The first and second proximity switches are respectively installed on both sides of the frame and electrically connected to the controller. The first proximity switch is located on the side of the first transition section, and the second proximity switch is located on the side of the second transition section.

[0006] The lifting mechanism includes hydraulic cylinders, guide rods, and a support plate. Guide rods are installed at the four corners of the bottom of the support plate, and the bottom ends of the guide rods are mounted on the base plate via linear bearings. Hydraulic cylinders electrically connected to the controller are installed on both sides of the base plate. The hydraulic cylinders are connected to the hydraulic system, and their piston rods are fixedly connected to the support plate. The pushing mechanism includes a U-shaped connecting plate, support rollers, a belt, a motor, and a rotating shaft. The U-shaped connecting plate is fixedly installed at the bottom of the support plate, and the rotating shaft is mounted on the U-shaped connecting plate via bearings. Its end passes through the U-shaped connecting plate and is equipped with a pulley. A rectangular groove is opened on the support plate. The support rollers are mounted on the support plate via support members and are equidistantly arranged along the length of the rectangular groove. The belt is wound around the support rollers and the pulley, located between adjacent conveying rollers. The width of the belt 703 is smaller than the gap between adjacent conveying rollers. The motor is installed inside the U-shaped connecting plate, and its output shaft is connected to the rotating shaft via a chain drive mechanism.

[0007] The conveyor roller is fitted with a rubber sleeve, and the outer surface of the belt is uniformly provided with raised ridges to enhance the stability of the suitcase during the pushing process.

[0008] The rack is equipped with a baffle on the side to prevent suitcases from falling off accidentally.

[0009] The beneficial effects of this utility model are: This invention achieves dynamic control of luggage spacing through a differential speed design between the main and auxiliary conveyor belts, combined with a lifting mechanism and a pushing mechanism. A detection component monitors the luggage's position in real time, ensuring precise and reliable control. This automates luggage transfer, reducing the need for manual intervention. During transport, if the distance between luggage is less than a preset value, the pushing mechanism transfers the luggage to the auxiliary conveyor belt for temporary storage. If the distance is greater than the preset value, the temporarily stored luggage is returned to the main conveyor belt. This avoids problems such as tightly stacked luggage or excessively wide spacing, ensuring the normal operation of subsequent security inspection equipment and improving overall transport efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is another overall structural schematic diagram of the present utility model. Figure 3 This is a three-dimensional structural diagram of the lifting mechanism and the pushing mechanism. Figure 4 A three-dimensional structural diagram of the push mechanism in its installation state.

[0011] Figure 5 This is a plan view of the lifting mechanism and the pushing mechanism.

[0012] The reference numerals in the attached drawings are as follows: 1. Frame; 2. Main conveyor belt; 3. Secondary conveyor belt; 4. Conveyor roller group; 5. Lifting mechanism; 6. Base plate; 7. Pushing mechanism; 8. Detection component; 9. Main motor; 10. First transition section; 11. Second transition section; 12. Secondary motor; 14. Baffle; 15. First motor; 501. Hydraulic cylinder; 502. Guide rod; 503. Support plate; 701. U-shaped connecting plate; 702. Support roller; 703. Belt; 704. Motor; 705. Rotating shaft; 707. Pulley; 708. Rectangular groove; 801. First position sensor; 802. Second position sensor; 803. First proximity switch; 804. Second proximity switch. Detailed Implementation

[0013] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0014] This utility model discloses an automatic luggage compartment spacing detection conveyor. The detection conveyor mainly includes a frame 1, a main conveyor belt 2, a secondary conveyor belt 3, conveyor roller groups 4, a lifting mechanism 5, a base plate 6, a pushing mechanism 7, and detection components 8. The frame 1 is the main supporting structure of the entire conveyor, and is elongated in shape. Three main conveyor belts 2 are installed along its length. Each main conveyor belt 2 is driven by a main motor 9, which is fixedly installed on the side of the frame 1 and electrically connected to a controller installed on the frame 1 via a frequency converter. The controller outputs a 0-10V analog signal to adjust the speed. A first transition section 10 and a second transition section 11 are respectively provided between adjacent main conveyor belts 2. Conveyor roller groups 4 are installed inside both the first transition section 10 and the second transition section 11. The conveyor roller groups 4 are driven by a first motor 15, which is installed on the side of the frame 1 and electrically connected to the controller via a frequency converter. The conveyor roller groups 4 include multiple conveyor rollers, and adjacent conveyor rollers are connected by a chain drive mechanism to achieve synchronous rotation. Rubber sleeves are fitted onto the conveyor rollers to increase friction and prevent the suitcases from slipping during transport. The length of the conveyor rollers is more than twice the width of the main conveyor belt 2 to facilitate a smooth transition of the suitcases between the first transition section 10 and the second transition section 11.

[0015] The auxiliary conveyor belt 3 is mounted on the frame 1, located to the side of the main conveyor belt 2, and driven by an auxiliary motor 12, which is also mounted on the side of the frame 1 and electrically connected to the controller via a frequency converter. The front end of the auxiliary conveyor belt 3 connects to the conveyor roller group 4 in the first transition section 10, and the rear end connects to the conveyor roller group 4 in the second transition section 11. The conveying speed of the main conveyor belt 2 is greater than that of the auxiliary conveyor belt 3. This differential speed design allows the luggage compartment to form different intervals between the main conveyor belt 2 and the auxiliary conveyor belt 3, thereby achieving dynamic control.

[0016] The base plate 6 is fixedly installed at the bottom of the frame 1, and the pushing mechanism 7 is located at the bottom of the conveyor roller group 4 and is installed on the base plate 6 through the lifting mechanism 5. The lifting mechanism 5 includes a hydraulic cylinder 501, a guide rod 502, and a support plate 503. The guide rod 502 is installed at the four corners of the bottom of the support plate 503, and the bottom end of the guide rod 502 is installed on the base plate 6 through a linear bearing to ensure that the support plate 503 remains stable during the lifting process. Hydraulic cylinders 501 are installed on both sides of the base plate 6. The hydraulic cylinders 501 are connected to the hydraulic system, which includes an electro-hydraulic proportional valve. The controller adjusts the oil pressure of the hydraulic cylinders 501 through a PWM signal. The two hydraulic cylinders 501 are controlled by a synchronous valve to ensure that the support plate 503 rises in parallel with a stroke error of ≤1mm. The piston rod of the hydraulic cylinder 501 is fixedly connected to the support plate 503. When the hydraulic cylinder 501 is activated, the piston rod pushes the support plate 503 to move up and down along the axial direction of the guide rod 502, thereby driving the pushing mechanism 7 to rise or fall.

[0017] The pushing mechanism 7 is vertically mounted on the base plate 6 via the lifting mechanism 5. In the raised state, the pushing mechanism 7 is higher than the upper surface of the conveyor roller group 4, and is used to push the suitcase from the conveyor roller group 4 onto the main conveyor belt 2 or the auxiliary conveyor belt 3. The pushing mechanism 7 includes a U-shaped connecting plate 701, a support roller 702, a belt 703, a motor 704, and a rotating shaft 705. The U-shaped connecting plate 701 is fixedly mounted on the bottom of the support plate 503. The rotating shaft 705 is mounted on the U-shaped connecting plate 701 via bearings, and its end passes through the U-shaped connecting plate 701 and is fitted with a pulley 707. A rectangular groove 708 is formed on the support plate 503. The support roller 702 is mounted above the support plate 503 via a support member and is equidistantly arranged along the length of the rectangular groove 708. The belt 703 is wound around the support roller 702 and the pulley 707, located between adjacent conveyor rollers. The width of the belt 703 is smaller than the gap between adjacent conveyor rollers to ensure free movement within the gap between the conveyor rollers and avoid interference. The outer surface of the belt 703 is uniformly provided with raised ridges to enhance the stability of the suitcase during the pushing process. The motor 704 is installed inside the U-shaped connecting plate 701, and its output shaft is connected to the rotating shaft 705 through a chain drive mechanism. When the motor 704 starts, it drives the rotating shaft 705 to rotate through the chain drive mechanism, which in turn drives the belt 703 to move, pushing the suitcase from the conveyor roller group 4 onto the main conveyor belt 2 or the auxiliary conveyor belt 3.

[0018] The detection component 8 is electrically connected to the controller and includes a first position sensor 801, a second position sensor 802, a first proximity switch 803, and a second proximity switch 804. The transmitting and receiving ends of the first position sensor 801 and the second position sensor 802 are respectively installed on both sides of the main conveyor belt 2, forming a beam detection area. The first position sensor 801 is located in front of the first transition section 10, and the second position sensor 802 is located in front of the second transition section 11, used to detect the position information of the luggage and transmit the signal to the controller. The first proximity switch 803 and the second proximity switch 804 are respectively installed on both sides of the frame 1 and electrically connected to the controller. The first proximity switch 803 is located on the side of the first transition section 10, and the second proximity switch 804 is located on the side of the second transition section 11, used to assist in determining whether the luggage has entered or left the first transition section 10 and the second transition section 11.

[0019] A baffle 14 is also installed on the side of the frame 1 to prevent the suitcase from accidentally falling off during transport. The baffle 14 is slightly higher than the maximum height of the suitcase to ensure that the suitcase does not deviate from the track during high-speed transport.

[0020] The working principle of this utility model is as follows: When the suitcase enters the inlet section of the main conveyor belt 2, the first position sensor 801 detects the position information of the suitcase and transmits the signal to the controller. If the controller determines that the distance between the suitcases is less than a preset value, it controls the lifting mechanism 5 to start. The hydraulic cylinder 501 pushes the support plate 503 upward, driving the pushing mechanism 7 upward, making it higher than the upper surface of the conveyor roller group 4. Subsequently, the motor 704 starts, driving the rotating shaft 705 to rotate through the chain transmission mechanism, so that the belt 703 lifts the suitcase from the conveyor roller group 4 in the first transition section 10 and pushes it onto the auxiliary conveyor belt 3 for slow temporary storage. During this process, the first proximity switch 803 detects whether the suitcase has completely entered the auxiliary conveyor belt 3 and feeds the signal back to the controller.

[0021] As the suitcase continues to be conveyed along the main conveyor belt 2 to the second position sensor 802, if the controller determines that the distance between the suitcases is greater than a preset value, it controls the lifting mechanism 5 of the second transition section 11 to start, pushing the suitcase at the end of the auxiliary conveyor belt 3 onto the main conveyor belt 2. At this time, the hydraulic cylinder 501 pushes the support plate 503 upward, causing the pushing mechanism 7 to push the suitcase from the auxiliary conveyor belt 3 onto the conveyor roller group 4 in the second transition section 11. Subsequently, the suitcase is sent back onto the main conveyor belt 2 through the conveyor roller group 4, completing the distance adjustment. During this process, the second proximity switch 804 detects whether the suitcase has completely entered the main conveyor belt 2 and feeds the signal back to the controller. In order to enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0022] In the actual operation of the airport baggage sorting system, the speeds of the main motor 9 and the first motor 15 are adjusted by the controller and frequency converter to ensure that the conveying speeds of the main conveyor belt 2 and the conveyor roller group 4 are the same, and the speed of the auxiliary motor 12 is also adjusted. For example, the speed of the main conveyor belt 2 is set to 1 m / s, and the speed of the auxiliary conveyor belt 3 is 0.25 m / s, with a speed difference ratio of 4:1. When a suitcase passes through the beam detection area, the beam is blocked, and the position sensor 801 generates a trigger signal and transmits it to the control module of the controller. The control module has a built-in data processing unit that can calculate the actual distance between the suitcases based on the time interval between two consecutive trigger signals, and compare this value with the preset target distance to determine whether the lifting mechanism 5 and the pushing mechanism 7 need to be activated to adjust the suitcase. If the controller determines that the distance between the current suitcase and the previous suitcase is less than the preset value, the lifting mechanism 5 is activated immediately. Hydraulic cylinder 501 pushes support plate 503 upward along guide rod 502 via piston rod, making belt 703 of pushing mechanism 7 20mm higher than the upper surface of conveyor roller group 4, lifting the suitcase and ensuring vertical movement via guide rod 502. Subsequently, motor 704 starts, its output shaft driving shaft 705 to rotate via chain transmission mechanism, thereby driving belt 703 to push laterally to auxiliary conveyor belt 3 at a speed of 0.5m / s. The raised ridges on the outer surface of belt 703 make close contact with the bottom of suitcase, ensuring the suitcase is smoothly pushed from conveyor roller group 4 onto auxiliary conveyor belt 3 for temporary storage. During this process, first proximity switch 803 detects whether the suitcase has fully entered auxiliary conveyor belt 3 and feeds a signal back to controller to ensure successful transfer of the suitcase.

[0023] As the suitcase continues to be conveyed along the main conveyor belt 2 to the second position sensor 802, if the controller determines that the distance between the current suitcase and the previous suitcase is greater than a preset value, the lifting mechanism 5 is activated again. The hydraulic cylinder 501 pushes the support plate 503 upward, causing the belt 703 of the pushing mechanism 7 to lift the suitcase at the end of the auxiliary conveyor belt 3 and push it onto the conveyor roller group 4 in the second transition section 11. The conveyor roller group 4 rotates synchronously through a chain drive mechanism, smoothly feeding the suitcase back into the main conveyor belt 2. During this process, the second proximity switch 804 detects whether the suitcase has completely entered the main conveyor belt 2 and feeds a signal back to the controller to confirm that the suitcase has successfully returned to its position.

[0024] In the above steps, the conveying speed of the main conveyor belt 2 is greater than that of the auxiliary conveyor belt 3, allowing the spacing between suitcases on the main conveyor belt 2 to be dynamically increased, while suitcases on the auxiliary conveyor belt 3 are temporarily stored at a slower speed. This differential speed design not only avoids the problem of suitcases being tightly stacked due to insufficient spacing, but also effectively reduces the waste of conveyor line resources caused by excessive spacing. In addition, the length of the conveyor rollers is more than twice the width of the main conveyor belt 2, and the conveyor rollers are fitted with rubber sleeves, further enhancing the stability of the suitcases in the transition section and ensuring that they do not slip or deviate during the conveying process.

[0025] The baffle 14 is slightly higher than the maximum height of the suitcase, effectively preventing it from accidentally falling during high-speed transport and ensuring safety. Meanwhile, the evenly spaced raised ridges on the outer surface of the belt 703 further enhance the stability of the suitcase during pushing, ensuring it maintains the correct posture.

[0026] Furthermore, by adjusting the conveying speed of different main conveyor belts 2, for example, gradually increasing the conveying speed of each set of main conveyor belts 2 along the luggage conveying direction, and combining this with the speed increase of the conveyor roller group 4, the spacing between luggage compartments can be increased.

[0027] This invention achieves dynamic control of luggage spacing through a differential speed design between the main and auxiliary conveyor belts, combined with a lifting mechanism and a pushing mechanism. A detection component monitors the luggage's position in real time, ensuring precise and reliable control, thus automating luggage transfer and reducing the need for manual intervention. During transport, if the detected spacing is less than a preset value, the luggage can be temporarily stored on the auxiliary conveyor belt via the pushing mechanism. If the detected spacing is greater than the preset value, the temporarily stored luggage can be returned to the main conveyor belt, preventing overly dense stacking or excessive spacing, ensuring the normal operation of subsequent security inspection equipment, and improving overall transport efficiency. The conveyor roller group 4 and the chain drive mechanism work together to ensure a smooth transition of luggage between the first transition section 10 and the second transition section 11. Furthermore, the real-time monitoring function of the detection component 8 ensures accurate acquisition of luggage position information, providing a reliable control basis for the controller.

[0028] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A detection conveyor for automatically adjusting the spacing between suitcases, characterized in that: The automatic luggage compartment spacing detection conveyor includes a frame (1), a main conveyor belt (2), a secondary conveyor belt (3), a conveyor roller group (4), a base plate (6), a pushing mechanism (7), a detection component (8), and a lifting mechanism (5). The frame (1) has three sets of main conveyor belts (2) driven by a main motor (9) installed along its length. A first transition section (10) and a second transition section (11) are respectively provided between adjacent main conveyor belts (2). Conveyor roller groups (4) are installed inside the first transition section (10) and the second transition section (11). The conveyor roller groups (4) are driven by a first motor (15). The adjacent conveyor rollers are connected by a conveyor belt. The conveyor rollers are connected via a chain drive mechanism (402), and their length is more than twice the width of the main conveyor belt (2). The auxiliary conveyor belt (3) is installed on the frame (1), located to the side of the main conveyor belt (2), and driven by the auxiliary motor (12). The front end of the auxiliary conveyor belt (3) is connected to the conveyor roller group (4) in the first transition section (10), and the rear end is connected to the conveyor roller group (4) in the second transition section (11). The main motor (9), auxiliary motor (12), and first motor (15) are respectively installed on the side of the frame (1) and electrically connected to the controller installed on the frame (1) via a frequency converter. The conveying speed of the main conveyor belt (2) is greater than that of the auxiliary conveyor belt (3). The conveying speed; the base plate (6) is fixedly installed at the bottom of the frame (1), and the pushing mechanism (7) is located at the bottom of the conveying roller group (4) and can be lifted and lowered on the base plate (6) through the lifting mechanism (5). In the raised state, the pushing mechanism (7) is higher than the upper surface of the conveying roller group (4) and is used to push the suitcase from the conveying roller group (4) to the main conveyor belt (2) or the auxiliary conveyor belt (3); the detection component (8) is electrically connected to the controller and includes a first position sensor (801), a second position sensor (802), a first proximity switch (803) and a second proximity switch (804). The first position sensor (801) The transmitter and receiver of the second position sensor (802) are respectively installed on both sides of the main conveyor belt (2) to form a beam detection area. The first position sensor (801) is located in front of the first transition section (10), and the second position sensor (802) is located in front of the second transition section (11) to detect the position information of the luggage and transmit the signal to the controller. The first proximity switch (803) and the second proximity switch (804) are respectively installed on both sides of the frame (1) and electrically connected to the controller. The first proximity switch (803) is located on the side of the first transition section (10), and the second proximity switch (804) is located on the side of the second transition section (11).

2. The detection conveyor for automatically adjusting the spacing between suitcases as described in claim 1, characterized in that: The lifting mechanism (5) includes a hydraulic cylinder (501), a guide rod (502), and a support plate (503). The support plate (503) has guide rods (502) installed at the four corners of its bottom. The bottom ends of the guide rods (502) are mounted on the base plate (6) via linear bearings. Hydraulic cylinders (501) electrically connected to the controller are installed on both sides of the base plate (6). The hydraulic cylinders (501) are connected to the hydraulic system, and their piston rods are fixedly connected to the support plate (503). The pushing mechanism (7) includes a U-shaped connecting plate (701), a support roller (702), a belt (703), a motor (704), and a rotating shaft (705). The U-shaped connecting plate (701) is fixedly mounted on the support plate (503). At the bottom, the rotating shaft (705) is mounted on the U-shaped connecting plate (701) by bearings. Its end passes through the U-shaped connecting plate (701) and is equipped with a pulley (707). A rectangular groove (708) is opened on the support plate (503). The support roller (702) is mounted on the support plate (503) by a support member and is arranged at equal intervals along the length direction of the rectangular groove (708). The belt (703) is wound on the support roller (702) and the pulley (707) and is located between adjacent conveying rollers. The width of the belt 703 is smaller than the gap between adjacent conveying rollers. The motor (704) is installed inside the U-shaped connecting plate (701), and its output shaft is connected to the rotating shaft (705) through a chain drive mechanism.

3. A detection conveyor for automatically adjusting the spacing between suitcases as described in claim 1 or 2, characterized in that: The conveyor roller is fitted with a rubber sleeve, and the outer surface of the belt (703) is uniformly provided with raised ridges to enhance the stability of the suitcase during the pushing process.

4. A detection conveyor for automatically adjusting the spacing between suitcases as described in claim 1 or 2, characterized in that: The frame (1) is equipped with a baffle (14) on the side to prevent the suitcase from falling off accidentally.

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