Machine body of carrier-roller-free pipe belt conveyor

Abstract

The invention discloses a carrier-roller-free pipe belt conveyor body, which relates to the technical field of pipe belt conveyors, and comprises a rack, 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 which are dragged by the traction device to annularly walk along the track, the closing device is located upstream of the opening device; 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. According to the carrier-roller-free pipe belt conveyor body, the wedge-shaped resistance of a conveying belt is overcome, the running resistance of equipment is reduced, the installed power and electric energy consumption of the equipment are reduced, the purposes of saving energy and reducing consumption are achieved, and economic benefits are improved.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyors, and in particular to a belt conveyor body without rollers. Background Art

[0002] Tubular belt conveyors are referred to as tubular belt conveyors. They can effectively solve the problems of dust, material scattering, and environmental pollution generated during the transportation of bulk materials. During transportation, the conveyor belt is rolled into a round tube, which can wrap and transport the materials in a closed manner.

[0003] The existing pipe belt machine body is as follows Fig. 9 As shown, the roller group includes six rollers 7 arranged on the panel 6. The six rollers 7 are arranged in a hexagonal shape to roll up the conveyor belt d into a circular tube with overlapping edges. The rollers 7 have the functions of supporting the conveyor belt d and the bulk materials wrapped in the conveyor belt d, keeping the rolled conveyor belt d from spreading, and replacing the sliding friction with the rolling friction to reduce the running resistance of the conveyor belt.

[0004] Since the rollers 7 have their own rotational resistance, each roller group cannot be equipped with too many rollers 7. The radial stiffness value of the rolled-up tubular conveyor belt d is relatively large, and it is bound to have a tendency to open in the roller group. When the tubular conveyor belt d with a larger diameter passes through the next roller group, it must overcome the force of the conveyor belt d resisting deformation and reduce its diameter to pass through. From the perspective of physics or mechanics, this is the wedge resistance. Although there are many roller groups in the existing pipe belt conveyor, there are about 500 roller groups for a pipe belt conveyor of about 1,000 meters in length. However, the roller groups still cannot overcome the wedge resistance of the conveyor belt d. This wedge resistance increases power consumption, increases the tension of the conveyor belt, and is bound to increase the model of the conveyor belt, resulting in the increase of the model of many stress-bearing components, increasing investment, and increasing the power consumption of later operation. Summary of the invention

[0005] In view of the above defects in the prior art, the present invention aims to provide a rollerless conveyor belt conveyor body, which overcomes the wedge resistance of the conveyor belt, reduces the running 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 body of a rollerless pipe conveyor 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 circle 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 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 separated 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 attraction structure arranged on the retaining frame. The roller is rotatably arranged on the track, the locking cylinder is used to lock the conveyor belt, and the magnetic attraction structure is used to absorb the locking cylinder after opening so that the locking cylinder remains in an open state.

[0009] Wherein, the locking cylinder is surrounded by 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.

[0010] Wherein, the quick-locking structure comprises an elastic slot assembly arranged on one of the movable barrel walls, and a locking protrusion arranged on the other movable barrel wall, and the elastic slot assembly and the locking protrusion cooperate with each other to realize the 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, levers for cooperating with the opening device and the closing device are respectively arranged on the two movable cylinder walls, and the two levers are arranged to be inclined toward each other.

[0013] Wherein, the opening device includes two first ball-bearing slides, one end of the two first ball-bearing slides is fixed on the frame, and the other ends of the two first ball-bearing 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 so that the quick lock structure can be opened quickly.

[0014] Wherein, 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 can be quickly locked.

[0015] Wherein, 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, and the upper arc section and the lower arc section located 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 rope wheels rotatably arranged on the frame, a traction rope wound around the two rope wheels, and a driving member for driving the two rope wheels 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 present invention are:

[0018] The body of the rollerless pipe belt machine provided by the present invention adopts a brand-new rollerless structure, which completely subverts the existing technology. It arranges 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 circle along the track, and the closing device is arranged upstream of the opening device along the conveying direction of the material, and the conveyor belt tubular holding device is pulled by the traction device to run synchronously with the conveyor belt, and the conveyor belt tubular holding device is closed by the closing device so that the conveyor belt tubular holding device is locked on the conveyor belt rolled into a circular tube, and the conveyor belt tubular holding device is opened by the opening 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 It is a schematic diagram of the use state of the body of the rollerless belt conveyor of the present invention;

[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, the traction device and the pipe belt holding device;

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

[0023] Figure 5 yes Figure 2 A 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 cooperate;

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

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

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

[0028] In the figure: a, head system; b, body of the conveyor without rollers; 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 convex; 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, rope 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 herein 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 conveyor belt, including a head system a, a rollerless conveyor belt body b and a tail system c, a conveyor belt d is wound around the head system a, the rollerless conveyor belt body b and the tail system c, and the conveyor belt d includes a load-bearing section and a return section arranged in two layers, and the load-bearing section wraps and conveys bulk materials in a closed manner.

[0031] The head system a and the tail system c in this embodiment are both supported by rollers and roller groups. After being flattened by the rollers, the conveyor belt d is slowly unfolded or slowly wound through the roller groups with different groove angles on the upper and lower sides of the rollers. This is the prior art and will not be elaborated here. The body b of the rollerless conveyor belt machine 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 the invention point. The structure and working principle of the body b of the rollerless conveyor belt machine are specifically introduced 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 arranged (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 circle 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 round tube, and 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 at all, that is, the conveyor belt tubular holding device 4 overcomes the wedge-shaped resistance of the conveyor belt d. Therefore, the running resistance of the entire equipment is greatly reduced, the installed power and power 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 holding device 4 in this embodiment includes a holding frame 41, and a roller 42, a locking cylinder and a magnetic attraction structure arranged on the holding frame 41. The roller 42 is arranged on the track 1 in a rolling manner. The locking cylinder is used to lock the conveyor belt d rolled into a circular tube. The magnetic attraction structure is used to absorb the locking cylinder after opening to keep the locking cylinder in an open state. Such a setting can not only lock the conveyor belt d, but also keep the locking cylinder in an open state after opening, thereby ensuring the stability of the equipment operation. At the same time, the structure of the roller 42 and the track 1 cooperate with each other, which has the advantages of high speed, low friction, and the ability to achieve ultra-long travel, greatly improving the conveying efficiency.

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

[0036] The locking cylinder in this embodiment is surrounded by an arc-shaped fixed cylinder wall 43 and two arc-shaped movable cylinder walls 44. The fixed cylinder wall 43 is fixedly arranged on the retaining frame 41, and the two movable cylinder walls 44 are respectively hinged at both ends of the fixed cylinder wall 43, and a quick lock structure 45 is arranged between the two movable cylinder walls 44. By setting the quick lock structure 45, not only the quick locking and quick opening of the two movable cylinder walls 44 are realized, the working stability of the whole equipment is ensured, but also the reliability of the locking of the conveyor belt d can be ensured, so that the wound conveyor belt d will not be accidentally opened due to external factors such as vibration and overfilling of materials, thereby avoiding the problems of material spillage and water ingress.

[0037] The quick-locking structure 45 in this embodiment includes an elastic slot assembly arranged on one of the movable barrel walls 44 and a locking protrusion 451 arranged on the other movable barrel wall 44 . The elastic slot assembly and the locking protrusion 451 cooperate with each other to achieve quick locking of the two movable barrel 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 support plates 455 are respectively provided on the two arc-shaped clips 452, 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 plates 455, and the two arc-shaped clips 452 are supported by the two springs 453 to form a slot that cooperates with the locking protrusion 451, and when the locking 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 disposed on the other movable cylinder wall 44 , and the locking protrusion 451 is disposed on the second mounting seat 456 . In order to facilitate the locking protrusion 451 to be smoothly inserted 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, which are symmetrically arranged on opposite sides of the locking cylinder, and the two magnets 46 are respectively used to attract the corresponding movable cylinder walls 44 after opening. By setting up the magnetic attraction structure, it is ensured that the movable cylinder walls 44 after opening can be kept in a specific position and will not be automatically closed due to external disturbances. At the same time, it also avoids the occurrence of the phenomenon that the two movable cylinder walls 44 are automatically closed due to gravity when rotating to the bottom of 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 arranged on the two movable cylinder walls 44, and the two levers 47 are arranged to be 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 on the frame, and the other ends of the two first ball-bearing slides 21 are connected to form a conical expansion 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 opened quickly.

[0043] The closing device 3 in this embodiment includes two second ball-bearing slides 31 obliquely arranged on the frame, and a conical 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 conical channel, the two second ball-bearing slides 31 drive the two levers 47 to approach from the outside of the two levers 47 so that the quick lock structure can be 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 approach so that the quick-locking 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-locking structure 45 to ensure that the quick-locking structure 45 is locked.

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

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

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

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

[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 selection is made according to actual needs, which is not limited in this embodiment.

[0051] The rollerless conveyor belt 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 to lock the conveyor belt tubular holding device 4 on the conveyor belt d rolled into a circular tube. At this time, the conveyor belt d wraps the material for closed transportation; 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 and then turns into the 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, and at the same time, the conveyor belt d is slowly flattened and rotated by the tail system c and then transformed into a load-bearing section.

[0054] The structure and working principle of the rollerless belt conveyor body b of the present invention are introduced in detail above. The rollerless belt conveyor in this embodiment uses the rollerless belt conveyor 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 running 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 modes. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work all fall within the protection scope of the present invention.

Claims

1. A rollerless belt conveyor body, characterized in that: It comprises a frame, a traction device, an opening device, a closing device and a track arranged along the running direction of the conveyor belt arranged on the frame, and a plurality of conveyor belt tubular holding devices which 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 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.

2. The rollerless belt conveyor body according to claim 1, characterized in that: The conveyor belt tubular retaining device includes a retaining frame, and a roller, a locking cylinder and a magnetic attraction structure arranged on the retaining frame. The roller is rotatably arranged on the track, the locking cylinder is used to lock the conveyor belt, and the magnetic attraction structure is used to absorb the locking cylinder after opening 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 surrounded by 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 is characterized in that: The quick-locking structure comprises an elastic slot assembly arranged on one of the movable barrel walls, and a locking protrusion arranged on the other movable barrel wall. The elastic slot assembly and the locking protrusion cooperate with each other to realize the quick locking of the two movable barrel 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, and the two magnets are respectively used to absorb the corresponding movable cylinder walls after opening.

6. The rollerless belt conveyor body according to claim 3, characterized in that: The two movable cylinder walls are respectively provided with levers for cooperating with the opening device and the closing device, and the two levers 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-bearing slides, one end of the two first ball-bearing slides is fixed on the frame, and the other ends of the two first ball-bearing slides are connected to form a conical expansion portion, and the conical expansion portion is used to drive the two levers to move away from the inner sides of the two levers so that the quick lock structure can be opened quickly.

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 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 can be quickly locked.

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 rope wheels rotatably arranged on the frame, a traction rope wound around the two rope wheels, and a driving member for driving the two rope wheels 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.

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