Movable conveyor belt

Abstract

The utility model provides a movable conveyor belt, which relates to the technical field of conveyor belts and comprises a conveyor belt main body, an anti-collision guardrail, a roller moving mechanism, an arc-shaped mounting bracket and a vibration reduction support rod, according to the device, the anti-collision guardrails are arranged on the front edge and the rear edge of the conveying belt body, the roller moving mechanisms are installed at the lower ends of the front anti-collision guardrail and the rear anti-collision guardrail, the whole device moves through the roller moving mechanisms, and compared with the mode that the device is fixedly arranged in a plant, the device is more convenient to transfer; the conveyor belt body is in contact with an object when colliding during movement, so that the conveyor belt body is prevented from directly colliding with the object; the arc-shaped mounting bracket is made of a spring steel material, and the arc-shaped mounting bracket and the vibration reduction supporting rod on the arc-shaped mounting bracket can buffer vibration in the moving process of the device, so that the probability of damage to the conveying belt main body in the moving process is reduced through the measures.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt technology, and in particular to a movable conveyor belt. Background Technology

[0002] Conveyor belts are used to transport materials during rice production. Generally, conveyor belts are fixed inside the factory. When there is a temporary need to transport materials, and the initial position of the materials and the position to be transported are temporary, the entire conveyor belt needs to be moved. In this case, it is more troublesome to move the traditionally fixed conveyor belt inside the factory, as it is inconvenient to disassemble and move, and the conveyor belt equipment is easily damaged during the transfer process. Utility Model Content

[0003] The purpose of this utility model is to provide a movable conveyor belt, which is more convenient to move than the fixed installation method in the factory, and reduces the probability of damage to the conveyor belt body during movement. It solves the technical problems of traditional fixed conveyor belts in the factory being troublesome to move, inconvenient to disassemble and move, and prone to damage to the conveyor belt equipment during the transfer process.

[0004] This utility model provides a movable conveyor belt, including a conveyor belt body.

[0005] There are two parallel anti-collision guardrails, which are fixedly fitted onto the front and rear edges of the conveyor belt body, respectively.

[0006] A roller moving mechanism, the upper end of which is fixedly mounted on the bottom surface of the front and rear anti-collision guardrails;

[0007] The roller moving mechanism includes two arc-shaped mounting brackets, which are distributed in parallel front and rear, with the protrusions of the arc-shaped mounting brackets facing downwards.

[0008] The upper end of the arc-shaped mounting bracket is fixedly assembled to the bottom surface of the anti-collision guardrail on the same side;

[0009] Vibration damping rods are evenly fixed between the recessed part on the upper surface of the arc-shaped mounting bracket and the bottom surface of the anti-collision guardrail on the same side.

[0010] As a further optimization, in order to provide collision protection when the device moves, the anti-collision guardrail includes:

[0011] A ring-shaped guardrail is fixedly connected around the edge of the conveyor belt body;

[0012] The annular guardrail is uniformly and fixedly connected to the outer wall of the conveyor belt body at the feeding end and the discharging end.

[0013] There are two U-shaped anti-collision bars, which are symmetrically distributed at the front and back. The two U-shaped anti-collision bars are respectively sleeved on the outside of the feed end and the discharge end of the conveyor belt body;

[0014] The inner wall of the U-shaped anti-collision bar is fixedly connected to the outer end of the connecting rod on the same side.

[0015] As a further optimization, to facilitate the movement of the device, the roller moving mechanism includes:

[0016] The roller mounting bracket is fixedly assembled on the bottom surface of the front and rear arc-shaped mounting brackets located on the side of the material discharge end of the conveyor belt body;

[0017] Rollers are rotatably mounted on the lower ends of both the front and rear sides of the roller mounting bracket.

[0018] Both the front and rear arc-shaped mounting brackets are fixedly equipped with casters on the bottom surface of the conveyor belt body at the feeding end.

[0019] As a further optimization, in order to improve the support strength of the roller mounting frame, the roller mounting frame is composed of V-shaped frames distributed in parallel front and rear.

[0020] The rollers are rotatably mounted on the lower end of the outer side of the V-shaped frame, and a shaft is fixedly connected to the middle of the front and rear rollers.

[0021] As a further optimization, in order to improve the wear resistance of the U-shaped anti-collision bar, the outer surface of the U-shaped anti-collision bar is coated with a wear-resistant layer.

[0022] As a further optimization, in order to provide vibration damping support for the conveyor belt body and buffer vibrations during device movement, the vibration damping support rod includes:

[0023] The main body of the support rod has a gap in its middle section;

[0024] The first damping rod is fixedly connected to both ends of the gap;

[0025] The first damping rod is fitted with a first spring on its outer wall, and the two ends of the first spring abut against the two end faces of the missing section.

[0026] As a further optimization, in order to provide stable support for the device when it needs to be parked stably, and to facilitate the removal of the support when it is not needed, the outer side of the middle of the front and rear arc-shaped mounting brackets is hinged with vibration damping legs, and the bottom surface of the vibration damping legs is on the same plane as the bottom surface of the rollers and casters.

[0027] As a further optimization, to allow the second damping rod and second spring to retract when the support needs to be released, providing space for the damping leg to flip and fold, the damping leg includes:

[0028] There are two Y-shaped rods, which are distributed parallel to each other at the front and back.

[0029] The upper end of the Y-shaped rod is hinged to the outer side of the middle part of the arc-shaped mounting bracket on the same side;

[0030] The lower ends of the Y-shaped rod are both fixedly connected to a second damping rod, and a support block is fixedly assembled at the lower end of the second damping rod.

[0031] A second spring is sleeved on the outer wall of the second damping rod, and the two ends of the second spring are fixedly connected to the lower end of the second damping rod and the upper end of the support block, respectively.

[0032] A crossbeam is fixedly assembled between the front and rear corresponding support blocks.

[0033] As a further optimization, in order to pre-tighten the conveyor belt of the main body of the conveyor belt and prevent the conveyor belt from becoming loose, baffles are fixedly installed on the inner walls of the front and rear edges of the main body of the conveyor belt.

[0034] The upper end of the outer wall of the front and rear baffles is equipped with a conveyor belt pretensioning mechanism, and the movable part of the conveyor belt pretensioning mechanism abuts against the top surface of the inner wall of the conveyor belt body.

[0035] As a further optimization, in order to support the conveyor belt by means of the elastic support of the pre-tensioning roller through the third spring, and to prevent the conveyor belt from becoming loose, the conveyor belt pre-tensioning mechanism includes:

[0036] There are two strip-shaped windows, which are distributed in parallel front and back, and the two strip-shaped windows are respectively opened on the upper end of the outer wall of the baffle on the same side;

[0037] The upper end of the strip window extends to the upper edge of the baffle;

[0038] A roller shaft, with both ends inserted into the upper end of the strip window on the same side;

[0039] A pre-tightening roller is rotatably sleeved in the middle of the outer wall of the roller shaft, and the top surface of the pre-tightening roller slides against the top surface of the inner wall of the conveyor belt body.

[0040] Two telescopic rods are distributed in parallel front and rear, and the two ends of the telescopic rods are respectively fixedly connected to the bottom surface of the inner cavity of the strip window and the bottom end of the roller on the same side.

[0041] The third spring is sleeved on the outer wall of the telescopic end of the telescopic rod, and the two ends of the third spring abut against the middle platform of the telescopic rod and the bottom surface of the roller on the same side, respectively.

[0042] This utility model provides a movable conveyor belt with the following improvements and advantages compared with the prior art:

[0043] The device is equipped with anti-collision guardrails at the front and rear edges of the conveyor belt body. A roller moving mechanism is installed at the lower end of the front and rear anti-collision guardrails. The entire device is moved by the roller moving mechanism, which is more convenient for relocation compared to the method of being fixed in the factory building. The anti-collision guardrails are located at the outer edge of the device, so that when the conveyor belt body is moving and a collision occurs, it will first come into contact with the object, avoiding direct collision between the conveyor belt body and the object. The arc-shaped mounting bracket is made of spring steel, and the arc-shaped mounting bracket and the vibration damping rod on it can buffer the vibration during the movement of the device. The above measures reduce the probability of damage to the conveyor belt body during movement. Attached Figure Description

[0044] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of this utility model;

[0046] Figure 2 This is a schematic diagram of the layout structure of the anti-collision guardrail of this utility model;

[0047] Figure 3 This is a schematic diagram of the wear-resistant layer assembly structure of this utility model;

[0048] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0049] Figure 5 This is a schematic diagram of the vibration-damping support leg structure of this utility model;

[0050] Figure 6 This utility model Figure 1 Enlarged structural diagram at point B.

[0051] Explanation of reference numerals in the attached figures:

[0052] 1-Conveyor belt body, 2-Anti-collision guardrail, 21-Circular guardrail, 22-U-shaped anti-collision bar, 23-Connecting rod, 3-Roller moving mechanism, 31-Arc-shaped mounting bracket, 32-Roller mounting frame, 33-Roller, 34-Universal wheel, 4-Vibration damping support rod, 41-Support rod body, 42-Gap section, 43-First damping rod, 44-First spring, 5-Vibration damping support leg, 51-Y-shaped rod, 52-Rotating shaft, 53-Second damping rod, 54-Support block, 55-Second spring, 56-Crossbeam, 6-Conveyor belt pretensioning mechanism, 61-Strip window, 62-Pretensioning roller, 63-Roller shaft, 64-Telescopic rod, 65-Third spring. Detailed Implementation

[0053] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] Please see Figure 1-6The present invention provides a technical solution: a movable conveyor belt, comprising a conveyor belt body 1.

[0057] There are two anti-collision guardrails 2, which are distributed in parallel front and rear. The two anti-collision guardrails 2 are fixedly sleeved on the front and rear edges of the conveyor belt body 1 respectively. The anti-collision guardrails 2 are set at the front and rear edges of the conveyor belt body 1, and the anti-collision performance at both ends of the anti-collision guardrails 2 is stronger.

[0058] The upper end of the roller moving mechanism 3 is fixedly mounted on the bottom surface of the front and rear anti-collision guardrails 2, and the lower end of the roller moving mechanism 3 contacts the ground through rollers 33 and casters 34, which facilitates the movement of the entire device.

[0059] The roller moving mechanism 3 includes an arc-shaped mounting bracket 31, two of which are distributed in parallel front and rear, with the protrusion of the arc-shaped mounting bracket 31 facing downward. The arc-shaped mounting bracket 31 is made of spring steel. The arc-shaped mounting bracket 31 and the vibration damping support rod 4 on it can buffer the vibration during the movement of the device.

[0060] The upper end of the arc-shaped mounting bracket 31 is fixedly assembled to the bottom surface of the anti-collision guardrail 2 on the same side;

[0061] A vibration damping support rod 4 is evenly fixed between the recessed part on the upper surface of the arc-shaped mounting bracket 31 and the bottom surface of the anti-collision guardrail 2 on the same side.

[0062] In some embodiments, the crash barrier 2 includes the following components to provide collision protection when the device is moved:

[0063] A ring-shaped guardrail 21 is fixedly connected around the edge of the conveyor belt body 1. When the device moves and an impact occurs, the ring-shaped guardrail 21 will first come into contact with the object.

[0064] The ring-shaped guardrail 21 is uniformly and fixedly connected with connecting rods 23 on the outer wall of the conveyor belt body 1 at the feeding end and the discharging end.

[0065] There are two U-shaped anti-collision bars 22, which are symmetrically distributed at the front and back. The two U-shaped anti-collision bars 22 are respectively sleeved on the outside of the feed end and the discharge end of the conveyor belt body 1.

[0066] The inner wall of the U-shaped anti-collision bar 22 is fixedly connected to the outer end of the connecting bar 23 on the same side. Both the U-shaped anti-collision bar 22 and the connecting bar 23 are made of spring steel. After being impacted, they buffer the impact through deformation to achieve a better anti-collision effect.

[0067] In some embodiments, to facilitate the movement of the device, the roller moving mechanism 3 includes:

[0068] The roller mounting bracket 32 ​​is fixedly assembled on the bottom surface of the front and rear arc-shaped mounting brackets 31, located on the side of the discharge end of the conveyor belt body 1.

[0069] Rollers 33 are rotatably mounted on the lower ends of both the front and rear sides of the roller mounting bracket 32;

[0070] The bottom surface of the front and rear arc-shaped mounting brackets 31 is fixedly equipped with casters 34 on one side of the feed end of the conveyor belt body 1. The outer diameter of the roller 33 is larger than that of the caster 34. The roller 33 serves as the front wheel and is fixed on the roller mounting bracket 32. During the movement, the vibration damping support rod 4 provides damping. The caster 34 serves as the rear wheel.

[0071] In some embodiments, in order to improve the support strength of the roller mounting bracket 32, the roller mounting bracket 32 ​​is composed of V-shaped brackets distributed in parallel front and rear. The V-shaped brackets and the upper end and the arc-shaped mounting bracket 31 form a triangle to improve the stability and strength of the support.

[0072] The rollers 33 are rotatably mounted on the lower end of the outer side of the V-shaped frame, and the front and rear rollers 33 are fixedly connected to the shaft in the middle.

[0073] In some embodiments, in order to improve the wear resistance of the U-shaped anti-collision bar 22, the outer surface of the U-shaped anti-collision bar 22 is coated with a wear-resistant layer.

[0074] In some embodiments, in order to provide vibration damping support for the conveyor belt body 1 and buffer vibrations during device movement, the vibration damping strut 4 includes:

[0075] The main body of the support rod 41 has a gap section 42 in its middle;

[0076] The first damping rod 43 is fixedly connected to both ends of the missing section 42;

[0077] The first damping rod 43 is sleeved with a first spring 44 on its outer wall, and the two ends of the first spring 44 abut against the two end faces of the missing section 42 respectively. The first spring 44 and the first damping rod 43 constitute a damping spring damper to buffer the vibration.

[0078] In some embodiments, in order to provide stable support for the device when it needs to be parked stably, and to facilitate the release of support when it is not needed, a vibration damping leg 5 is hinged to the outer side of the middle of the front and rear arc-shaped mounting brackets 31. The bottom surface of the vibration damping leg 5 is on the same plane as the bottom surface of the roller 33 and the universal wheel 34. The vibration damping leg 5 is installed on the outer side of the middle of the front and rear arc-shaped mounting brackets 31 by means of hinge. When it is flipped to the vertical state, its lower end rests against the ground to support the device. When it is flipped to the lower end detached from the ground, the vibration damping leg 5 is released from the support state.

[0079] In some embodiments, the second damping rod 53 and the second spring 55 can retract to provide space for the damping leg 5 to flip and fold when the support needs to be released, the damping leg 5 comprising:

[0080] Y-shaped rods 51, two of which are distributed parallel to each other at the front and back;

[0081] The upper end of the Y-shaped rod 51 is hinged to the outer side of the middle part of the arc-shaped mounting bracket 31 on the same side, with a pivot 52.

[0082] The lower ends of the Y-shaped rod 51 are fixedly connected to the second damping rod 53, and the lower end of the second damping rod 53 is fixedly fitted with a support block 54.

[0083] The second damping rod 53 is sleeved with a second spring 55 on its outer wall, and the two ends of the second spring 55 are fixedly connected to the lower end of the second damping rod 53 and the upper end of the support block 54, respectively. The second damping rod 53 and the second spring 55 constitute a damping spring damper to buffer the vibration when the damping leg 5 supports the ground. When the damping leg 5 is released from the support state, the second damping rod 53 and the second spring 55 can retract to provide space for the damping leg 5 to flip and fold.

[0084] A crossbeam 56 is fixedly assembled between the front and rear corresponding support blocks 54. The design of the crossbeam 56 makes the structures on the front and rear sides of the vibration damping leg 5 integrated, allowing for unified control.

[0085] In some embodiments, baffles are fixedly installed on the inner walls of the front and rear edges of the conveyor belt body 1 in order to pre-tighten the conveyor belt and prevent the conveyor belt from becoming loose.

[0086] The upper end of the outer wall of the front and rear baffles is equipped with a conveyor belt pretensioning mechanism 6, and the movable part of the conveyor belt pretensioning mechanism 6 abuts against the top surface of the inner wall of the conveyor belt of the conveyor belt body 1.

[0087] In some embodiments, in order to support the conveyor belt by means of the pretension roller 62 through the elastic support of the third spring 65, and to prevent the conveyor belt from becoming loose, the conveyor belt pretensioning mechanism 6 includes:

[0088] There are two strip windows 61, which are distributed in parallel front and back, and the two strip windows 61 are respectively opened on the upper end of the outer wall of the baffle on the same side;

[0089] The upper end of the strip window 61 extends to the upper edge of the baffle;

[0090] The roller 63 has its two ends inserted into the upper end of the strip window 61 on the same side;

[0091] A pre-tightening roller 62 is rotatably sleeved on the middle of the outer wall of the roller shaft 63, and the top surface of the pre-tightening roller 62 slides against the top surface of the inner wall of the conveyor belt of the conveyor belt body 1.

[0092] There are two telescopic rods 64, which are distributed in parallel front and rear. The two ends of the telescopic rods 64 are respectively fixedly connected to the bottom surface of the inner cavity of the strip window 61 on the same side and the bottom end of the roller 63.

[0093] The third spring 65 is sleeved on the outer wall of the telescopic end of the telescopic rod 64, and the two ends of the third spring 65 abut against the middle platform of the telescopic rod 64 on the same side and the bottom surface of the roller 63, respectively.

[0094] Working principle:

[0095] The anti-collision guardrail 2 is set at the front and rear edges of the conveyor belt body 1, and the anti-collision performance of the front and rear anti-collision guardrail 2 is stronger. The roller moving mechanism 3 is installed at the lower end of the front and rear anti-collision guardrail 2. The whole device is moved by the roller moving mechanism 3, which is more convenient to move than the fixed installation in the factory.

[0096] The anti-collision guardrail 2 is set at the outer edge of the device. When the conveyor belt body 1 moves and a collision occurs, it will first contact the object to avoid the conveyor belt body 1 directly colliding with the object. The roller moving mechanism 3 includes an arc-shaped mounting bracket 31. The upper end of the arc-shaped mounting bracket 31 is fixedly mounted on the bottom surface of the anti-collision guardrail 2 on the same side. The recessed part of the upper surface of the arc-shaped mounting bracket 31 and the bottom surface of the anti-collision guardrail 2 on the same side are uniformly fixedly mounted with vibration damping rods 4. The arc-shaped mounting bracket 31 is made of spring steel. The arc-shaped mounting bracket 31 and the vibration damping rods 4 on it can buffer the vibration during the movement of the device. Through the above measures, the probability of damage to the conveyor belt body during movement is reduced.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A movable conveyor belt, comprising a conveyor belt body (1), characterized in that, There are two anti-collision guardrails (2) arranged in parallel front and back, and the two anti-collision guardrails (2) are respectively fixedly sleeved on the front and rear edges of the conveyor belt body (1); The upper end of the roller moving mechanism (3) is fixedly mounted on the bottom surface of the front and rear anti-collision guardrails (2); The roller moving mechanism (3) includes two arc-shaped mounting brackets (31) arranged in parallel front and rear, with the protrusions of the arc-shaped mounting brackets (31) facing downwards. The upper end of the arc-shaped mounting bracket (31) is fixedly assembled to the bottom surface of the anti-collision guardrail (2) on the same side; The upper surface of the arc-shaped mounting bracket (31) is recessed and the bottom surface of the anti-collision guardrail (2) on the same side is uniformly fixed with a vibration damping rod (4).

2. A movable conveyor belt according to claim 1, characterized in that, The crash barrier (2) includes: A ring-shaped guardrail (21) is fixedly connected around the edge of the conveyor belt body (1); The ring-shaped guardrail (21) is uniformly fixedly connected with connecting rods (23) on the outer wall of the feed end and discharge end of the conveyor belt body (1); There are two U-shaped anti-collision bars (22) symmetrically distributed at the front and back. The two U-shaped anti-collision bars (22) are respectively sleeved on the outside of the feed end and the discharge end of the conveyor belt body (1); The inner wall of the U-shaped anti-collision bar (22) is fixedly connected to the outer end of the connecting rod (23) on the same side.

3. A movable conveyor belt according to claim 1, characterized in that, The roller moving mechanism (3) includes: Roller mounting bracket (32) is fixedly assembled on the bottom surface of the front and rear arc-shaped mounting brackets (31) located on the discharge end side of the conveyor belt body (1); The lower ends of both the front and rear sides of the roller mounting bracket (32) are rotatably equipped with rollers (33); The bottom surfaces of the front and rear arc-shaped mounting brackets (31) located on the feed end side of the conveyor belt body (1) are all fixedly equipped with casters (34).

4. A movable conveyor belt according to claim 3, characterized in that, The roller mounting bracket (32) is composed of V-shaped frames distributed in parallel front and rear. The roller (33) is rotatably mounted on the lower end of the outer side of the V-shaped frame, and a shaft is fixedly connected to the middle of the front and rear rollers (33).

5. A movable conveyor belt according to claim 2, characterized in that, The outer surface of the U-shaped anti-collision bar (22) is coated with a wear-resistant layer.

6. A movable conveyor belt according to claim 1, characterized in that, The vibration damping strut (4) includes: The main body of the support rod (41) has a gap section (42) in the middle; The first damping rod (43) is fixedly connected to both ends of the missing section (42); The first damping rod (43) is sleeved with a first spring (44) on its outer wall, and the two ends of the first spring (44) abut against the two end faces of the missing section (42).

7. A movable conveyor belt according to claim 3, characterized in that, The front and rear arc-shaped mounting brackets (31) are hinged to the outer side of the middle section with vibration damping legs (5), and the bottom surface of the vibration damping legs (5) is on the same plane as the bottom surface of the rollers (33) and the casters (34).

8. A movable conveyor belt according to claim 7, characterized in that, The vibration damping outrigger (5) includes: Y-shaped rods (51) are arranged in parallel front and back. The upper end of the Y-shaped rod (51) is hinged to the outer side of the middle part of the arc-shaped mounting bracket (31) on the same side by a pivot (52); The lower ends of the Y-shaped rod (51) are fixedly connected to the second damping rod (53), and the lower end of the second damping rod (53) is fixedly fitted with a support block (54); The second damping rod (53) is sleeved with a second spring (55) on its outer wall, and the two ends of the second spring (55) are fixedly connected to the lower end of the second damping rod (53) and the upper end of the support block (54), respectively. A crossbeam (56) is fixedly assembled between the front and rear corresponding support blocks (54).

9. A movable conveyor belt according to claim 1, characterized in that, The inner walls of the front and rear edges of the conveyor belt body (1) are fixedly fitted with baffles; The upper end of the outer wall of the front and rear baffles is equipped with a conveyor belt pretensioning mechanism (6), and the movable part of the conveyor belt pretensioning mechanism (6) abuts against the top surface of the inner wall of the conveyor belt of the conveyor belt body (1).

10. A movable conveyor belt according to claim 9, characterized in that, The conveyor belt pretensioning mechanism (6) includes: There are two strip windows (61) arranged in parallel front and back, and the two strip windows (61) are respectively opened on the upper end of the outer wall of the baffle on the same side; The upper end of the strip window (61) extends to the upper edge of the baffle; The roller (63) has its two ends inserted into the upper end of the strip window (61) on the same side; The pre-tightening roller (62) is rotatably sleeved in the middle of the outer wall of the roller shaft (63), and the top surface of the pre-tightening roller (62) slides against the top surface of the inner wall of the conveyor belt of the conveyor belt body (1). There are two telescopic rods (64) arranged in parallel front and back. The two ends of the telescopic rods (64) are respectively fixedly connected to the bottom surface of the inner cavity of the strip window (61) and the bottom end of the roller (63) on the same side. The third spring (65) is sleeved on the outer wall of the telescopic end of the telescopic rod (64). The two ends of the third spring (65) abut against the middle platform of the telescopic rod (64) and the bottom surface of the roller (63) on the same side, respectively.

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