Machine body of carrier-roller-free pipe belt conveyor

Abstract

The utility model discloses a body of a carrier-roller-free pipe belt conveyor, which relates to the technical field of pipe belt conveyors and comprises a frame, a traction device, an opening device, a closing device, a track arranged along the running direction of a conveying belt, and a plurality of conveying belt pipe-shaped retaining devices dragged by the traction device to annularly walk along the track, the closing device is located on the upstream of the opening device in the material conveying direction. The conveying belt tubular retaining device is pulled by the traction device to operate synchronously with the conveying belt, and the closing device is used for closing the conveying belt tubular retaining device so that the conveying belt tubular retaining device can be locked on the conveying belt wound into a circular tube shape. The opening device is used for opening the conveying belt tubular holding device so that the conveying belt tubular holding device can be separated from the conveying belt. The carrier-roller-free pipe belt conveyor body overcomes wedge-shaped resistance of a conveying belt, reduces running resistance of equipment, reduces installed power and electric energy consumption of the equipment, achieves the purposes of energy conservation and consumption reduction, and improves economic benefits.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe belt conveyors, in particular to a roller-less pipe belt conveyor body. Background Art

[0002] Tubular belt conveyors, also known as tubular belt conveyors, effectively address the problems of dust, spillage, and environmental pollution generated during the transportation of bulk materials. During transportation, the conveyor belt is rolled into a circular tube, enclosing the material for sealed transport.

[0003] The existing pipe belt machine body is as follows Figure 9 As shown, the conveyor belt d is wound into a circular tube with overlapping edges. The six rollers 7 are arranged in a hexagonal pattern and are arranged on a panel 6. The rollers 7 support the conveyor belt d and the bulk material contained within it. Furthermore, they prevent the wound conveyor belt d from unraveling. Furthermore, they replace sliding friction with rolling friction, reducing the operating resistance of the conveyor belt.

[0004] Because the rollers 7 have their own rotational resistance, each roller group cannot have too many rollers 7. The radial stiffness of the wound tubular conveyor belt d is relatively large, and it tends to expand within the roller group. When the tubular conveyor belt d with a larger diameter passes through the next roller group, it must overcome the force resisting deformation of the conveyor belt d and reduce its diameter to pass through. From the perspective of physics or mechanics, this is known as wedge resistance. Although existing pipe conveyors have a large number of roller groups, with approximately 500 roller groups for a pipe conveyor of about 1,000 meters in length, the roller groups are still unable to overcome the wedge resistance of the conveyor belt d. This wedge resistance increases power consumption and conveyor belt tension, which inevitably increases the size of the conveyor belt, resulting in the increase in the size of many load-bearing components, increasing investment, and increasing the power consumption of later operations. Utility Model Content

[0005] In view of the above defects in the prior art, the utility model aims to provide a rollerless conveyor belt machine body, which overcomes the wedge resistance of the conveyor belt, reduces the operating resistance of the equipment, reduces the installed power and power consumption of the equipment, achieves the purpose of energy saving and consumption reduction, and improves economic benefits.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A rollerless pipe conveyor body includes a frame, a traction device, an opening device, a closing device and a track arranged along the running direction of the conveyor belt, and a plurality of conveyor belt tubular holding devices pulled by the traction device to travel in a circular motion along the track. Along the conveying direction of the material, the closing device is located upstream of the opening device; the conveyor belt tubular holding device runs synchronously with the conveyor belt under the traction of the traction device, the closing device is used to close the conveyor belt tubular holding device so that the conveyor belt tubular holding device is locked on the conveyor belt rolled into a circular tube, and the opening device is used to open the conveyor belt tubular holding device so that the conveyor belt tubular holding device is detached from the conveyor belt.

[0008] Among them, the tubular retaining device of the conveyor belt includes a retaining frame, and a roller, a locking cylinder and a magnetic structure arranged on the retaining frame. The roller is arranged to roll on the track, the locking cylinder is used to lock the conveyor belt, and the magnetic structure is used to absorb the locking cylinder after opening to keep the locking cylinder in an open state.

[0009] The locking cylinder is composed of an arc-shaped fixed cylinder wall and two arc-shaped movable cylinder walls. The fixed cylinder wall is fixed on the retaining frame. The two movable cylinder walls are hinged at both ends of the fixed cylinder wall respectively, and a quick lock structure is provided between the two movable cylinder walls.

[0010] Wherein, the quick lock structure includes an elastic slot assembly provided on one of the movable barrel walls, and a locking protrusion provided on the other movable barrel wall. The elastic slot assembly and the locking protrusion cooperate with each other to achieve quick locking of the two movable barrel walls.

[0011] Wherein, the magnetic attraction structure includes two magnets, and the two magnets are symmetrically arranged on opposite sides of the locking cylinder, and the two magnets are respectively used to absorb the corresponding movable cylinder wall after opening.

[0012] Wherein, the two movable cylinder walls are respectively provided with shifting rods for cooperating with the opening device and the closing device, and the two shifting rods are arranged to be inclined toward each other.

[0013] In which, the opening device includes two first ball roller slides, one end of the two first ball roller slides is fixed on the frame, and the other ends of the two first ball roller slides are connected to form a conical support portion, and the conical support portion is used to drive the two levers to move away from the inner side of the two levers to quickly open the quick lock structure.

[0014] In which, the closing device includes two second ball-bearing slides obliquely arranged on the frame, and a conical channel for the two levers to pass through is formed between the two second ball-bearing slides. When the two levers pass through the conical channel, the two second ball-bearing slides drive the two levers to approach from the outside of the two levers so that the quick lock structure is quickly locked.

[0015] Wherein, the track includes an upper straight section, an upper arc section symmetrically arranged at both ends of the upper straight section, a lower straight section and a lower arc section symmetrically arranged at both ends of the lower straight section. The upper arc section and the lower arc section at the same end are overlapped to allow the conveyor belt tubular retaining device to transition from the upper arc section to the lower arc section or from the lower arc section to the upper arc section.

[0016] Among them, the traction device includes two pulleys rotatably arranged on the frame, a traction rope wound around the two pulleys, and a driving member for driving the two pulleys to rotate. The traction rope is arranged along the running direction of the conveyor belt, and all the tubular retaining devices of the conveyor belt are connected to the traction rope.

[0017] By adopting the above technical solution, the beneficial effects of the utility model are:

[0018] The utility model provides a roller-free pipe belt machine with a new roller-free structure, which completely subverts the existing technology. It provides a traction device, an opening device, a closing device and a track arranged along the running direction of the conveyor belt on the frame, and a plurality of conveyor belt tubular holding devices that are pulled by the traction device to travel in a circular manner along the track, and the closing device is arranged upstream of the opening device along the conveying direction of the material, and the traction device is used to pull the conveyor belt tubular holding device and the conveyor belt to run synchronously, and the closing device is used to close the conveyor belt tubular holding device so that the conveyor belt tubular holding device is locked on the conveyor belt rolled into a circular tube shape, and the opening device is used to open the conveyor belt tubular holding device so that the conveyor belt tubular holding device is separated from the conveyor belt. Since the conveyor belt tubular holding device is locked on the conveyor belt, the wedge-shaped resistance generated by the conveyor belt has no effect on the conveyor belt tubular holding device, that is, the conveyor belt tubular holding device overcomes the wedge-shaped resistance of the conveyor belt, thereby greatly reducing the running resistance of the equipment, reducing the installed power and power consumption of the equipment, achieving the purpose of energy saving and consumption reduction, green and environmentally friendly transportation, and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the use state of the utility model's roller-free pipe belt machine body;

[0020] Figure 2 yes Figure 1 Schematic diagram of the structure of the non-roller pipe belt conveyor body;

[0021] Figure 3 yes Figure 2 A schematic top view of the middle track, traction device and pipe belt retaining device;

[0022] Figure 4 yes Figure 2 Schematic diagram of the structure of the middle track;

[0023] Figure 5 yes Figure 2 Schematic diagram of the structure of the middle tube belt retaining device;

[0024] Figure 6 yes Figure 2 Schematic diagram of the state when the middle opening device and the tube belt holding device are in cooperation;

[0025] Figure 7 yes Figure 2 Schematic diagram of the state when the middle closing device and the pipe belt holding device are in coordination;

[0026] Figure 8 yes Figure 5 Structural diagram of the middle quick lock structure;

[0027] Figure 9 It is a structural diagram of the pipe belt machine body in the prior art;

[0028] In the figure: a, head system; b, rollerless pipe conveyor body; c, tail system; d, conveyor belt; 1, track; 11, upper straight section; 12, upper arc section; 13, lower straight section; 14, lower arc section; 2, opening device; 21, first ball slide; 3, closing device; 31, second ball slide; 310, inclined section; 311, straight section; 4, tubular retaining device for conveyor belt; 41, retaining frame; 42, roller; 43, fixed cylinder wall; 44, movable cylinder wall; 45, quick lock structure; 451, clamping cam; 452, arc clamping plate; 453, spring; 454, first mounting seat; 455, support plate; 456, second mounting seat; 46, magnet; 47, lever; 5, traction device; 51, pulley; 52, traction rope; 53, driving member; 54, bearing seat; 6, panel; 7, roller. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0030] like Figures 1 to 8As shown, this embodiment discloses a rollerless pipe conveyor, including a head system a, a rollerless pipe conveyor body b and a tail system c. A conveyor belt d is wound around the head system a, the rollerless pipe conveyor body b and the tail system c. The conveyor belt d includes a load-bearing section and a return section arranged in two layers, and the load-bearing section is used to wrap and convey bulk materials in a closed manner.

[0031] In this embodiment, the head system a and the tail system c are both supported by rollers and roller groups. After being flattened by the rollers, the conveyor belt d is slowly unrolled or wound through roller groups with different groove angles on the upper and lower sides of the rollers. This is a prior art and will not be described in detail here. The rollerless pipe conveyor machine body b is used to lock the wound circular tubular conveyor belt d with overlapping edges, so that the conveyor belt d can wrap and transport bulk materials in a closed manner. This is a point of the utility model. The structure and working principle of the rollerless pipe conveyor machine body b are described in detail below.

[0032] The body b of the conveyor belt conveyor without rollers in this embodiment includes a frame (not shown in the figure), a traction device 5, an opening device 2, a closing device 3 and a conveyor belt d along the running direction ( Figure 1 A track 1 is provided (as shown by the arrow in the middle), and a plurality of conveyor belt tubular holding devices 4 are pulled by a traction device 5 to move in a circular motion along the track 1. Along the conveying direction of the material, the closing device 3 is located upstream of the opening device 2; the conveyor belt tubular holding devices 4 run synchronously with the conveyor belt d under the traction of the traction device 5, the closing device 3 is used to close the conveyor belt tubular holding devices 4 so that the conveyor belt tubular holding devices 4 are locked on the conveyor belt d rolled into a circular tube, and the opening device 2 is used to open the conveyor belt tubular holding devices 4 so that the conveyor belt tubular holding devices 4 are separated from the conveyor belt d.

[0033] The rollerless pipe belt machine body b in this embodiment utilizes the traction device 5 to pull the conveyor belt tubular holding device 4 and the conveyor belt d to run synchronously, utilizes the closing device 3 to close the conveyor belt tubular holding device 4 so that the conveyor belt tubular holding device 4 is locked on the conveyor belt d rolled into a circular tube, utilizes the opening device 2 to open the conveyor belt tubular holding device 4 so that the conveyor belt tubular holding device 4 is separated from the conveyor belt d. Since the conveyor belt tubular holding device 4 is locked on the conveyor belt d, the wedge-shaped resistance generated by the conveyor belt d has no effect on the conveyor belt tubular holding device 4, that is, the conveyor belt tubular holding device 4 overcomes the wedge-shaped resistance of the conveyor belt d. Therefore, the operating resistance of the entire equipment is greatly reduced, the installed power and electricity consumption of the equipment are reduced, the purpose of energy saving and consumption reduction, green and environmentally friendly transportation is achieved, and the economic benefits are improved.

[0034] The conveyor belt tubular retaining device 4 in this embodiment includes a retaining frame 41, a roller 42 mounted on the retaining frame 41, a locking cylinder, and a magnetic structure. The roller 42 is rotatably mounted on the track 1. The locking cylinder is used to lock the tubular conveyor belt d, which has been rolled up. The magnetic structure is used to attract the unlocked locking cylinder to maintain its open position. This arrangement not only locks the conveyor belt d but also maintains its open position after it is unlocked, ensuring the stability of the equipment. Furthermore, the coordinated structure of the roller 42 and the track 1 offers advantages such as high speed, low friction, and the ability to achieve ultra-long travel, greatly improving conveying efficiency.

[0035] In this embodiment, two rows of rollers 42 are provided on the retaining frame 41, and each row is provided with two or four rollers 42. The rollers 42 are rotatably provided on the retaining frame 41 through rolling bearings. In addition, the rollers 42 in this embodiment have small rotational resistance and small radial runout. Such a setting reduces friction and noise, and further reduces the installed power of the equipment.

[0036] The locking cylinder in this embodiment is formed by a curved fixed cylinder wall 43 and two curved movable cylinder walls 44. The fixed cylinder wall 43 is fixed to the retaining frame 41, and the two movable cylinder walls 44 are hinged at both ends of the fixed cylinder wall 43. A quick-lock structure 45 is provided between the two movable cylinder walls 44. The provision of the quick-lock structure 45 not only enables the two movable cylinder walls 44 to be quickly locked and opened, ensuring the operational stability of the entire equipment, but also ensures the reliable locking of the conveyor belt d, preventing the wound conveyor belt d from accidentally opening due to external factors such as vibration and overfilling of the material, thereby preventing problems such as material spillage and water ingress.

[0037] The quick-locking structure 45 in this embodiment includes an elastic slot assembly provided on one of the movable cylindrical walls 44 and a locking protrusion 451 provided on the other movable cylindrical wall 44 . The elastic slot assembly and the locking protrusion 451 cooperate with each other to achieve quick locking of the two movable cylindrical walls 44 .

[0038] Specifically, the elastic slot assembly includes two arc-shaped clips 452 and two springs 453, wherein a first mounting seat 454 is provided on one movable cylinder wall 44, one end of the two arc-shaped clips 452 is hinged on the first mounting seat 454, and a support plate 455 is provided on the two arc-shaped clips 452 respectively, the two springs 453 are separated on both sides of the two arc-shaped clips 452, and the two springs 453 are respectively provided between the first mounting seat 454 and the corresponding support plate 455, and the two arc-shaped clips 452 are supported by the two springs 453 to form a slot that cooperates with the clamping protrusion 451, and when the clamping protrusion 451 is located in the slot, the quick lock structure 45 is in a locked state.

[0039] In this embodiment, a second mounting seat 456 is provided on the other movable cylinder wall 44 , and the locking protrusion 451 is provided on the second mounting seat 456 . In order to facilitate the locking protrusion 451 to be smoothly locked into the locking groove, in this embodiment, the locking protrusion 451 is preferably a spherical locking protrusion.

[0040] The magnetic attraction structure in this embodiment includes two magnets 46, symmetrically arranged on opposite sides of the locking cylinder. Each magnet 46 is used to attract the corresponding movable cylinder wall 44 after it is opened. This magnetic attraction structure ensures that the movable cylinder wall 44 remains in a specific position after opening, preventing it from automatically closing due to external disturbances. It also prevents the movable cylinder walls 44 from automatically closing due to gravity when rotating under the track 1.

[0041] In order to facilitate opening or closing of the locking cylinder, in this embodiment, levers 47 for cooperating with the opening device 2 and the closing device 3 are respectively provided on the two movable cylinder walls 44, and the two levers 47 are inclined toward each other.

[0042] The opening device 2 in this embodiment includes two first ball-bearing slides 21, one end of the two first ball-bearing slides 21 is fixed to the frame, and the other ends of the two first ball-bearing slides 21 are connected to form a conical support portion, which is used to drive the two levers 47 from the inner side of the two levers 47 to move away from each other so that the quick lock structure 45 can be quickly opened.

[0043] The closing device 3 in this embodiment includes two second ball-bearing slides 31 obliquely arranged on the frame, and a tapered channel for two levers 47 to pass through is formed between the two second ball-bearing slides 31. When the two levers 47 pass through the tapered channel, the two second ball-bearing slides 31 drive the two levers 47 from the outside to move closer to each other, so that the quick lock structure is quickly locked.

[0044] Specifically, the second ball-bearing slide 31 includes an inclined section 310 and a straight section 311. The inclined sections 310 of the two second ball-bearing slides 31 constitute a tapered channel, and the straight sections 311 of the two second ball-bearing slides 31 constitute a straight channel. The inclined sections 310 of the two second ball-bearing slides 31 are used to drive the two levers 47 to move closer so that the quick lock structure 45 can be quickly locked. The straight sections 311 of the two second ball-bearing slides 31 are used to maintain pressure on the locked quick lock structure 45 to ensure that the quick lock structure 45 is locked.

[0045] In this embodiment, the first ball-bearing slide 21 and the second ball-bearing slide 31 are both embedded with balls, and the balls protrude from their surfaces. This arrangement reduces the friction between the first ball-bearing slide 21 and the second ball-bearing slide 31 and the two levers 47, further reducing the operating resistance of the equipment.

[0046] Since two rows of rollers 42 are provided on the retaining frame 41 in this embodiment, two groups of tracks 1 are provided in this embodiment, and the two rows of rollers 42 are respectively provided on the two groups of tracks 1.

[0047] Specifically, the track 1 includes an upper straight section 11, an upper arc section 12 symmetrically arranged at both ends of the upper straight section 11, a lower straight section 13 and a lower arc section 14 symmetrically arranged at both ends of the lower straight section 13, and the upper arc section 12 and the lower arc section 14 located at the same end are overlapped to allow the roller 42 of the conveyor belt tubular retaining device 4 to transition from the upper arc section 12 to the lower arc section 14 or from the lower arc section 14 to the upper arc section 12, thereby realizing the rotation of the conveyor belt tubular retaining device 4 on the track 1.

[0048] The traction device 5 in this embodiment includes two pulleys 51 rotatably arranged on the frame, a traction rope 52 wound around the two pulleys 51, and a driving member 53 for driving the two pulleys 51 to rotate. The traction rope 52 is arranged along the running direction of the conveyor belt d, and the retaining frame 41 of all conveyor belt tubular retaining devices 4 is connected to the traction rope 52.

[0049] In order to ensure that the conveyor belt tubular retaining device 4 runs more smoothly, in this embodiment, two traction ropes 52 are preferably provided. Specifically, a bearing seat 54 is provided on the frame, and two pulleys 51 are respectively rotated on the corresponding bearing seats 54 through the rotating shaft. The two traction ropes 52 are symmetrically wound around the two pulleys 51, and one of the pulleys 51 is connected to the driving member 53 for transmission.

[0050] The traction rope 52 in this embodiment is preferably a steel wire rope, and the driving member 53 is preferably a variable frequency motor. Of course, other structures can also be used, and the specific selection is based on actual needs. This embodiment does not limit this.

[0051] The rollerless pipe conveyor in this embodiment only uses the load-bearing section of the conveyor belt d (the upper layer of the conveyor belt d) to wrap and transport the material in a closed manner. When in use, the traction device 5 pulls all the conveyor belt tubular retaining devices 4 along the two tracks 1 to run synchronously with the conveyor belt d.

[0052] On the load-bearing section of the conveyor belt d, when the tail system c slowly rolls the conveyor belt d into a circular tube with overlapping edges and the conveyor belt tubular holding device 4 is stuck to the outside of the conveyor belt d rolled into a circular tube, the closing device 3 on the frame closes the conveyor belt tubular holding device 4 so that the conveyor belt tubular holding device 4 is locked on the conveyor belt d rolled into a circular tube. At this time, the conveyor belt d wraps and transports the material in a closed manner; when the conveyor belt tubular holding device 4 moves to the position where the opening device 2 is located, the opening device 2 opens the conveyor belt tubular holding device 4 to separate the conveyor belt tubular holding device 4 from the conveyor belt d, and then the opened conveyor belt tubular holding device 4 runs to the lower layer of the track 1 under the traction of the traction device 5. At the same time, the conveyor belt d is slowly flattened and rotated by the head system a to form a return section.

[0053] On the return section of conveyor belt d (the lower layer of conveyor belt d), when the head system a slowly rolls up the conveyor belt d into a circular tube with overlapping edges and the conveyor belt tubular holding device 4 is stuck to the outside of the conveyor belt d rolled up into a circular tube, the closing device 3 on the frame closes the conveyor belt tubular holding device 4 so that the conveyor belt tubular holding device 4 is locked on the conveyor belt d rolled up into a circular tube; when the conveyor belt tubular holding device 4 moves to the position of the opening device 2, the opening device 2 opens the conveyor belt tubular holding device 4 so that the conveyor belt tubular holding device 4 is separated from the conveyor belt d, and then the opened conveyor belt tubular holding device 4 runs to the upper layer of the track 1 under the traction of the traction device 5. At the same time, the conveyor belt d is slowly flattened and rotated by the tail system c to become a load-bearing section.

[0054] The above describes in detail the structure and working principle of the rollerless pipe belt machine body b of the present invention. The rollerless pipe belt machine in this embodiment uses the rollerless pipe belt machine body b of the present invention to lock the conveyor belt d rolled into a circular tube, which completely subverts the existing technology, overcomes the wedge resistance of the conveyor belt d, greatly reduces the operating resistance of the equipment, reduces the installed power and power consumption of the equipment, achieves the purpose of energy saving and consumption reduction, green and environmentally friendly transportation, and improves economic benefits.

[0055] The present invention is not limited to the above-mentioned specific implementation methods. Various changes made by ordinary technicians in this field based on the above-mentioned conception without creative work are all within the scope of protection of the present invention.

Claims

1. A rollerless belt conveyor body, characterized in that: The machine comprises a frame, a traction device, an opening device, a closing device and a track arranged along the running direction of the conveyor belt, and a plurality of tubular retaining devices for the conveyor belt that are pulled by the traction device and move in a circular manner along the track. In the conveying direction of the material, the closing device is located upstream of the opening device. The conveyor belt tubular holding device runs synchronously with the conveyor belt under the traction of the traction device, the closing device is used to close the conveyor belt tubular holding device so that the conveyor belt tubular holding device is locked on the conveyor belt rolled into a round tube, and the opening device is used to open the conveyor belt tubular holding device so that the conveyor belt tubular holding device is detached from the conveyor belt.

2. The rollerless belt conveyor body according to claim 1, characterized in that: The tubular retaining device of the conveyor belt includes a retaining frame, and a roller, a locking cylinder and a magnetic structure arranged on the retaining frame. The roller is arranged to roll on the track, the locking cylinder is used to lock the conveyor belt, and the magnetic structure is used to absorb the locking cylinder after it is opened to keep the locking cylinder in an open state.

3. The rollerless belt conveyor body according to claim 2, characterized in that: The locking cylinder is composed of an arc-shaped fixed cylinder wall and two arc-shaped movable cylinder walls. The fixed cylinder wall is fixedly arranged on the retaining frame. The two movable cylinder walls are respectively hinged at both ends of the fixed cylinder wall, and a quick locking structure is arranged between the two movable cylinder walls.

4. The rollerless belt conveyor body according to claim 3, characterized in that: The quick-locking structure includes an elastic slot assembly provided on one of the movable cylinder walls and a locking protrusion provided on the other movable cylinder wall. The elastic slot assembly and the locking protrusion cooperate with each other to achieve quick locking of the two movable cylinder walls.

5. The rollerless belt conveyor body according to claim 3, characterized in that: The magnetic attraction structure includes two magnets, which are symmetrically arranged on opposite sides of the locking cylinder. The two magnets are respectively used to attract the corresponding movable cylinder wall after opening.

6. The rollerless belt conveyor body according to claim 3, characterized in that: The two movable cylinder walls are respectively provided with shifting rods for cooperating with the opening device and the closing device, and the two shifting rods are arranged to be inclined toward each other.

7. The rollerless belt conveyor body according to claim 6, characterized in that: The opening device includes two first ball slides, one end of the two first ball slides is fixed on the frame, and the other ends of the two first ball slides are connected to form a conical support portion, and the conical support portion is used to drive the two levers to move away from the inner side of the two levers to quickly open the quick lock structure.

8. The rollerless belt conveyor body according to claim 6, characterized in that: The closing device includes two second ball-bearing slides obliquely arranged on the frame, and a tapered channel for the two levers to pass through is formed between the two second ball-bearing slides. When the two levers pass through the tapered channel, the two second ball-bearing slides drive the two levers to move closer from the outside of the two levers to quickly lock the quick lock structure.

9. The rollerless belt conveyor body according to claim 1, characterized in that: The track includes an upper straight section, upper arc sections symmetrically arranged at both ends of the upper straight section, a lower straight section and lower arc sections symmetrically arranged at both ends of the lower straight section. The upper arc section and the lower arc section at the same end are overlapped to allow the conveyor belt tubular retaining device to transition from the upper arc section to the lower arc section or from the lower arc section to the upper arc section.

10. The rollerless belt conveyor body according to claim 1, characterized in that: The traction device includes two pulleys rotatably arranged on the frame, a traction rope wound around the two pulleys, and a driving member for driving the two pulleys to rotate. The traction rope is arranged along the running direction of the conveyor belt, and all the tubular retaining devices of the conveyor belt are connected to the traction rope.

Images