Tensioner for cargo transportation

Abstract

The utility model belongs to the technical field of tensioners, and particularly relates to a tensioner for cargo transportation, which comprises a protective shell, a plurality of working cavities are arranged on the protective shell, protective covers are rotatably mounted in the working cavities, power cavities are arranged in the protective shell and positioned on one sides of the working cavities, and the power cavities are communicated with one working cavity. A rotating column is rotationally mounted in the power cavity, one end of the rotating column penetrates through the power cavity and the working cavities, the rotating column is rotationally connected with the working cavities, ropes are wound on the rotating column and located in the working cavities, one end of each rope extends to the outside and is fixedly provided with a disc, and a limiting frame is rotationally mounted at one end of each disc; the multiple limiting assemblies are located on one sides of the multiple protection covers correspondingly and used for limiting the positions of the multiple limiting frames correspondingly; when the whole device is used, a bound object can be firmly bound through the arranged ropes, meanwhile, the ropes can be conveniently replaced, and operation is easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of tensioners, and in particular relates to a tensioner for cargo transportation. Background Art

[0002] The tensioner is used to fix the goods during transportation, movement, shipment or storage. After being locked, they will not fall off, are safe and reliable, light, easy to operate, and protect objects from damage. It is a device for reinforcing steel formwork and compressing wooden boards, and mainly plays a tensioning role.

[0003] For example, a Chinese patent with publication number CN218661564U discloses a tensioner for cargo transportation, wherein the tensioner for cargo transportation includes a winding box, a limiting body and a winding structure. The technical solution of the utility model sets two limiting bodies on both sides of the carriage, and the two winding boxes are inserted into the limiting bodies on both sides. Both ends of the rope pass through the through hole and the winding box and are connected to the two winding members. The handpiece is manually rotated to rotate the winding member and the rotating member to realize the winding of the rope. Under the restriction of the limiting body, the cargo in the carriage is bundled. At the same time, because the rope is tightened, the winding box abuts against the limiting body to ensure the bundling effect, and the rope is tightened by rotation to improve the winding efficiency of the rope.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: the above device only uses a single rope to tie up the goods, which is insufficient to tie up the goods, which may cause the goods to move and fall, and the rope needs to be replaced after long-term use, but the above device is not convenient for replacing the rope. In view of this, we propose a tensioner for cargo transportation. Utility Model Content

[0006] The purpose of the utility model is to provide a tensioner for cargo transportation to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a tensioner for cargo transportation, comprising:

[0008] A protective shell, wherein a plurality of working chambers are provided on the protective shell, a protective cover is rotatably installed in the working chamber, a power chamber is provided in the protective shell and located on one side of the working chamber, the power chamber is communicated with one of the working chambers, a rotating column is rotatably installed in the power chamber, one end of the rotating column passes through the power chamber and the plurality of working chambers, the rotating column is rotatably connected with the working chamber, a rope is wound around the rotating column and located in the plurality of working chambers, one end of the rope extends to the outside and is fixedly installed with a disc, and a limited position frame is rotatably installed at one end of the disc;

[0009] A plurality of limiting components, each of which is located on one side of a plurality of protective covers and is used to limit the positions of a plurality of limiting frames;

[0010] A driving assembly, the driving assembly is located in the protective shell and is used to drive the rotating column to rotate;

[0011] A plurality of sliding slots II, wherein the plurality of sliding slots II are all provided in the protective shell and are located below the protective cover, wherein two limiting rods are rotatably installed in the sliding slots II, a fixing column is fixedly installed on one side of the limiting rod, the fixing column is rotatably connected with the sliding slots II, and a torsion spring is sleeved on the fixing column, the two ends of the torsion spring are respectively fixed to one side of the limiting rod and the inner wall of the sliding slots II, the upper end of the limiting rod passes through the sliding slots II and extends into the corresponding protective cover, and the limiting rod is plug-fitted with the protective cover;

[0012] A plurality of power components are located in the protective shell and are respectively used to drive a plurality of limit rods to rotate.

[0013] In the technical solution, when the goods need to be bundled, the driving assembly can be used to drive the rotating column to rotate forward, and at the same time, the personnel can pull the plurality of limit frames and drive the disc and the rope to be pulled out, and then use the rope to bundle the goods. When the goods are bundled, the plurality of limit frames can be respectively sleeved on the plurality of fixed rods through the limit assembly, so that the limit frames can slide on the corresponding fixed rods and cannot be removed. The driving assembly can be used to drive the rotating column to rotate in the opposite direction, and the rotating column can retract the plurality of ropes, so that the bundled objects are squeezed.

[0014] When the rope needs to be replaced, the power component is set up, which can drive the two limit rods to rotate in opposite directions and disengage from the corresponding protective covers. At the same time, the corresponding two torsion springs are twisted, and then the protective cover can be rotated upward, and finally the rope can be replaced. When the rope is replaced, the protective cover can be rotated downward to restore the protective cover to its original position. The power component is set up, and then under the action of the torsional force of the two torsion springs, the corresponding two limit rods are rotated in opposite directions to restore to their original positions and inserted into the corresponding protective covers. The position of the corresponding protective covers will be fixed, which makes it easy to replace the rope and simple to operate.

[0015] In the above technical solution, further, the limit assembly includes:

[0016] Two fixing rods, the two fixing rods are symmetrically fixedly installed on one side of the protective cover, one of the fixing rods is provided with a sliding groove 1, a sliding plate is slidably installed in the sliding groove 1, one end of the sliding plate passes through the sliding groove 1 and extends into the other fixing rod, one end of the sliding plate is plugged into the other fixing rod, and the other end of the sliding plate is fixedly installed with a plurality of springs fixed to the inner wall of the sliding groove 1, the limit frame is slidably connected to the fixing rod, and one side of the sliding plate passes through the sliding groove and extends to the outside.

[0017] In this technical solution, personnel pull several sliding plates to slide in the direction of corresponding springs, and at the same time several springs are squeezed and contracted. When the sliding plates slide to appropriate positions, several limit frames are respectively put on several fixed rods. Then the personnel release the several sliding plates. Under the action of the rebound force of several springs, the springs drive the sliding plates to slide in the direction away from sliding groove one and insert into the corresponding fixed rod, so that the limit frames slide on the corresponding fixed rod and cannot be removed.

[0018] In the above technical solution, further, the driving component includes:

[0019] A worm wheel is rotatably installed in the power cavity and located at one end of the rotating column. The worm wheel is coaxially connected to the rotating column. A worm is rotatably installed in the power cavity and located at the bottom of the worm wheel. The worm is meshed with the worm wheel, and one end of the worm passes through the power cavity and extends to the outside.

[0020] In this technical solution, the operator first rotates the operating disk forward and drives the worm to rotate forward, the worm drives the worm wheel meshing with it to rotate forward, and the worm wheel drives the rotating column to rotate forward;

[0021] A person can rotate the operating panel in the reverse direction and drive the worm to rotate in the reverse direction, the worm drives the worm wheel meshing with it to rotate in the reverse direction, and the worm wheel drives the rotating column to rotate in the reverse direction.

[0022] In the above technical solution, further, the power assembly includes:

[0023] A sliding rod, wherein the sliding rod is slidably installed in the sliding groove 2, and a plurality of tension springs fixed to the inner wall of the sliding groove 2 are fixedly installed at the bottom of the sliding rod, the top of the sliding rod is in close contact with the lower ends of the two limit rods, and one side of the sliding rod passes through the sliding groove 2 and extends to the outside.

[0024] In the present technical solution, when the rope needs to be replaced, the sliding rod is first pulled upwards, and the corresponding tension springs are pulled and stretched, and then the sliding rod squeezes the corresponding two limit rods to rotate in the opposite direction and disengage from the corresponding protective cover, and the corresponding two torsion springs are twisted, and then the protective cover can be rotated upwards, and finally the rope can be replaced. When the rope is replaced, the protective cover can be rotated downwards to restore the protective cover to its original position, and then the sliding rod is released, and under the action of the tension of the tension springs, the sliding rod slides downwards, and at this time the sliding rod no longer squeezes the corresponding two limit rods, and under the action of the torsional force of the corresponding two torsion springs, the corresponding two limit rods rotate in the opposite direction to restore to their original position and are inserted into the corresponding protective cover, and the position of the corresponding protective cover will be fixed, so that the rope can be easily replaced, and the operation is simple.

[0025] In the above technical solution, further, an operating disk is fixedly mounted on one end of the worm.

[0026] In the technical solution, the worm is conveniently rotated by means of a provided operating disk.

[0027] In the above technical solution, further, the cross-section of the limiting rod is V-shaped.

[0028] In this technical solution, it is ensured that the limiting rod can be inserted into the corresponding protective cover.

[0029] The beneficial effects of the utility model are:

[0030] 1. When the cargo needs to be bundled, the tensioner for cargo transportation can drive the rotating column to rotate forward through the set driving component. At the same time, the personnel can pull several limit frames and drive the disc and the rope to be pulled out, and then use the rope to bundle the cargo. When the cargo is bundled, the set limit components can respectively cover the several limit frames on the several fixed rods, so that the limit frames slide on the corresponding fixed rods and cannot be removed. The set driving component can drive the rotating column to rotate in the opposite direction, and the rotating column can retract the several ropes, and the several ropes can firmly bundle the bundled objects.

[0031] 2. When the tensioner for cargo transportation needs to replace the rope, the power component is set up to drive the two limit rods to rotate in opposite directions and disengage from the corresponding protective covers. At the same time, the corresponding two torsion springs are twisted, and then the protective cover can be rotated upward, and finally the rope can be replaced. When the rope is replaced, the protective cover can be rotated downward to restore the protective cover to its original position. The power component is set up, and then under the action of the torsional force of the two torsion springs, the corresponding two limit rods are rotated in opposite directions to restore to their original positions and inserted into the corresponding protective covers. The position of the corresponding protective covers will be fixed, so that the rope can be easily replaced and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 It is a schematic diagram of the worm gear area structure of the utility model;

[0034] Figure 3 It is a schematic diagram of the structure of the rotating column area of ​​the utility model;

[0035] Figure 4 It is a schematic diagram of the cross-sectional structure of the protective shell of the utility model;

[0036] Figure 5 The utility model Figure 4 Schematic diagram of the structure enlarged at A in the middle

[0037] Figure 6 This is a schematic diagram of the limit rod area structure of the utility model

[0038] Figure 7 It is a schematic diagram of the sliding plate area structure of the utility model;

[0039] Figure 8 It is a schematic diagram of the protection cover area structure of the utility model.

[0040] The symbols in the figure are:

[0041] 1. Protective shell; 2. Protective cover; 3. Fixed rod; 4. Sliding groove 1; 5. Sliding plate; 6. Spring; 7. Power chamber; 8. Working chamber; 9. Rotating column; 10. Rope; 11. Disc; 12. Limiting frame; 13. Sliding groove 2; 14. Limiting rod; 15. Torsion spring; 16. Worm gear; 17. Worm; 18. Sliding rod; 19. Tension spring; 20. Operating panel; 21. Fixed column. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0043] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0045] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not 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 cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0046] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0047] Embodiment 1:

[0048] See also Figure 1 - Figure 8 As shown, this embodiment provides a tensioner for cargo transportation, comprising:

[0049] A protective shell 1 is provided with a plurality of working chambers 8, a protective cover 2 is rotatably installed in the working chamber 8, a power chamber 7 is provided in the protective shell 1 and located on one side of the working chamber 8, the power chamber 7 is communicated with one of the working chambers 8, a rotating column 9 is rotatably installed in the power chamber 7, one end of the rotating column 9 passes through the power chamber 7 and the plurality of working chambers 8, the rotating column 9 is rotatably connected with the working chamber 8, a rope 10 is wound around the rotating column 9 and located in the plurality of working chambers 8, one end of the rope 10 extends to the outside and is fixedly installed with a disc 11, and one end of the disc 11 is rotatably installed with a limited position frame 12;

[0050] A plurality of limiting components, each of which is located on one side of the plurality of protective covers 2 and is used to limit the position of the plurality of limiting frames 12;

[0051] A driving assembly, which is located in the protective shell 1 and is used to drive the rotating column 9 to rotate;

[0052] A plurality of sliding grooves 13 are provided in the protective shell 1 and are located below the protective cover 2. Two limiting rods 14 are rotatably installed in the sliding groove 13. A fixing column 21 is fixedly installed on one side of the limiting rod 14. The fixing column 21 is rotatably connected with the sliding groove 13. A torsion spring 15 is sleeved on the fixing column 21. Two ends of the torsion spring 15 are respectively fixed to one side of the limiting rod 14 and the inner wall of the sliding groove 13. The upper end of the limiting rod 14 passes through the sliding groove 13 and extends into the corresponding protective cover 2. The limiting rod 14 is plugged into and matched with the protective cover 2.

[0053] A plurality of power components are located in the protective shell 1 and are respectively used to drive a plurality of limit rods 14 to rotate.

[0054] When the goods need to be bundled, the driving assembly provided can drive the rotating column 9 to rotate forward, and at the same time, the personnel can pull the plurality of limit frames 12 and drive the disc 11 and the rope 10 to be pulled out, and then use the rope 10 to bundle the goods. When the goods are bundled, the plurality of limit frames 12 can be respectively sleeved on the plurality of fixed rods 3 through the limiting assembly provided, so that the limit frames 12 can slide on the corresponding fixed rods 3 and cannot be removed. The driving assembly provided can drive the rotating column 9 to rotate in the opposite direction, and the rotating column 9 can retract the plurality of ropes 10, and the plurality of ropes 10 can firmly bundle the bundled objects.

[0055] When the rope 10 needs to be replaced, the power component is set up, which can drive the two limit rods 14 to rotate in opposite directions and disengage from the corresponding protective cover 2. At the same time, the corresponding two torsion springs 15 are twisted, and then the protective cover 2 can be rotated upward, and finally the rope 10 can be replaced. When the rope 10 is replaced, the protective cover 2 can be rotated downward to restore the protective cover 2 to its original position. The power component is set up, and then under the action of the torsional force of the two torsion springs 15, the corresponding two limit rods 14 are rotated in opposite directions to restore to their original positions and inserted into the corresponding protective cover 2. The position of the corresponding protective cover 2 will be fixed, which achieves the effect of facilitating the replacement of the rope 10 and is simple to operate.

[0056] In this embodiment, the limit assembly includes:

[0057] Two fixing rods 3, the two fixing rods 3 are symmetrically fixedly installed on one side of the protective cover 2, one of the fixing rods 3 is provided with a sliding groove 4, a sliding plate 5 is slidably installed in the sliding groove 4, one end of the sliding plate 5 passes through the sliding groove 4 and extends into the other fixing rod 3, one end of the sliding plate 5 is plugged with the other fixing rod 3, and the other end of the sliding plate 5 is fixedly installed with a plurality of springs 6 fixed to the inner wall of the sliding groove 4, a limit frame 12 is slidably connected with the fixing rod 3, and one side of the sliding plate 5 passes through the sliding groove 4 and extends to the outside;

[0058] Among them, personnel pull several sliding plates 5 to slide in the direction of corresponding springs 6, and at the same time several springs 6 are squeezed and contracted. When the sliding plates 5 slide to the appropriate position, several limit frames 12 are respectively put on several fixed rods 3. Then the personnel loosen the several sliding plates 5. Under the action of the rebound force of several springs 6, the springs 6 drive the sliding plates 5 to slide in the direction away from the sliding groove 4 and insert into the corresponding fixed rod 3, so that the limit frames 12 slide on the corresponding fixed rod 3 and cannot be removed.

[0059] In this embodiment, the driving component includes:

[0060] A worm wheel 16 is rotatably mounted in the power chamber 7 and located at one end of the rotating column 9. The worm wheel 16 is coaxially connected to the rotating column 9. A worm 17 is rotatably mounted in the power chamber 7 and located at the bottom of the worm wheel 16. The worm 17 meshes with the worm wheel 16, and one end of the worm 17 penetrates the power chamber 7 and extends to the outside.

[0061] The operator first rotates the operating panel 20 in the forward direction and drives the worm 17 to rotate in the forward direction. The worm 17 drives the worm wheel 16 meshing with the worm 17 to rotate in the forward direction. The worm wheel 16 drives the rotating column 9 to rotate in the forward direction.

[0062] A person can rotate the operating disk 20 in the reverse direction and drive the worm 17 to rotate in the reverse direction. The worm 17 drives the worm wheel 16 meshing therewith to rotate in the reverse direction, and the worm wheel 16 drives the rotating column 9 to rotate in the reverse direction.

[0063] In this embodiment, the power assembly includes:

[0064] A sliding rod 18 is slidably mounted in the second sliding groove 13, and a plurality of tension springs 19 fixed to the inner wall of the second sliding groove 13 are fixedly mounted at the bottom of the sliding rod 18, the top of the sliding rod 18 is in close contact with the lower ends of the two limit rods 14, and one side of the sliding rod 18 passes through the second sliding groove 13 and extends to the outside;

[0065] Among them, when the rope 10 needs to be replaced, the sliding rod 18 is first pulled upwards, and the corresponding tension springs 19 are pulled and stretched, and then the sliding rod 18 will squeeze the corresponding two limit rods 14 to rotate in the opposite direction and disengage from the corresponding protective cover 2, and the corresponding two torsion springs 15 are twisted, and then the protective cover 2 can be rotated upwards, and finally the rope 10 can be replaced. When the rope 10 is replaced, the protective cover 2 can be rotated downward to restore the protective cover 2 to its original position, and then the sliding rod 18 is released. Under the action of the pulling force of the tension springs 19, the sliding rod 18 slides downward. At this time, the sliding rod 18 no longer squeezes the corresponding two limit rods 14. Under the action of the torsional force of the corresponding two torsion springs 15, the corresponding two limit rods 14 rotate in the opposite direction to restore to their original position and are inserted into the corresponding protective cover 2, and the position of the corresponding protective cover 2 will be fixed, so that the rope 10 can be easily replaced, and the operation is simple.

[0066] Embodiment 2:

[0067] This embodiment provides a tensioner for cargo transportation, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0068] In this embodiment, an operating panel 20 is fixedly mounted on one end of the worm 17 .

[0069] The worm 17 can be easily rotated by the operating panel 20 .

[0070] Embodiment 3:

[0071] This embodiment provides a tensioner for cargo transportation, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0072] In this embodiment, the cross-section of the limiting rod 14 is V-shaped.

[0073] Here, it is ensured that the limiting rod 14 can be inserted into the corresponding protective cover 2 .

[0074] Working principle: When the goods need to be tied, the personnel first rotate the operating disk 20 forward and drive the worm 17 to rotate forward, the worm 17 drives the worm wheel 16 meshing with it to rotate forward, and the worm wheel 16 drives the rotating column 9 to rotate forward. At the same time, the personnel can pull several limit frames 12 and drive the disc 11 and the rope 10 to be pulled out, and then use the rope 10 to tie the goods. When the goods are tied, the personnel pull the several sliding plates 5 to slide in the direction of the corresponding springs 6, and at the same time, the several springs 6 are squeezed and contracted. When the sliding plates 5 slide to the appropriate position, the several limit frames 12 are respectively The plurality of fixed rods 3 are sleeved thereon, and then the personnel loosen the plurality of sliding plates 5. Under the action of the rebound force of the plurality of springs 6, the springs 6 drive the sliding plates 5 to slide in a direction away from the sliding slots 4 and insert into the corresponding fixed rods 3, so that the limit frames 12 slide on the corresponding fixed rods 3 and cannot be removed. Finally, the personnel can reversely rotate the operating disk 20 and drive the worm 17 to rotate in the opposite direction. The worm 17 drives the worm gear 16 meshing therewith to rotate in the opposite direction. The worm gear 16 drives the rotating column 9 to rotate in the opposite direction. The rotating column 9 can retract the plurality of ropes 10, and the plurality of ropes 10 can firmly bind the bound objects.

[0075] When the rope 10 needs to be replaced, the sliding rod 18 is first pulled upwards, and the corresponding tension springs 19 are pulled and stretched. Then the sliding rod 18 will squeeze the corresponding two limit rods 14 to rotate in the opposite direction and disengage from the corresponding protective cover 2. At the same time, the corresponding two torsion springs 15 are twisted. Then the protective cover 2 can be rotated upwards, and finally the rope 10 can be replaced. When the rope 10 is replaced, the protective cover 2 can be rotated downwards to restore the protective cover 2 to its original position. Then the sliding rod 18 is released. Under the action of the pulling force of the tension springs 19, the sliding rod 18 slides downward. At this time, the sliding rod 18 no longer squeezes the corresponding two limit rods 14. Under the action of the torsional force of the corresponding two torsion springs 15, the corresponding two limit rods 14 rotate in the opposite direction to restore to their original position and are inserted into the corresponding protective cover 2. The position of the corresponding protective cover 2 will be fixed, which achieves the effect of conveniently replacing the rope 10 and is simple to operate.

[0076] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A tensioner for cargo transportation, characterized in that: include: A protective shell (1), wherein a plurality of working chambers (8) are provided on the protective shell (1), a protective cover (2) is rotatably installed in the working chamber (8), a power chamber (7) is provided in the protective shell (1) and located on one side of the working chamber (8), the power chamber (7) is communicated with one of the working chambers (8), a rotating column (9) is rotatably installed in the power chamber (7), one end of the rotating column (9) passes through the power chamber (7) and the plurality of working chambers (8), the rotating column (9) is rotatably connected with the working chamber (8), a rope (10) is wound on the rotating column (9) and located in the plurality of working chambers (8), one end of the rope (10) extends to the outside and is fixedly installed with a disc (11), and one end of the disc (11) is rotatably installed with a limit frame (12); A plurality of limiting components, each of which is located on one side of a plurality of protective covers (2) and is used to limit the position of a plurality of limiting frames (12); A driving assembly, the driving assembly is located in the protective shell (1) and is used to drive the rotating column (9) to rotate; A plurality of sliding grooves (13), wherein the plurality of sliding grooves (13) are all provided in the protective shell (1) and are located below the protective cover (2), wherein two limiting rods (14) are rotatably installed in the sliding grooves (13), wherein a fixing column (21) is fixedly installed on one side of the limiting rod (14), wherein the fixing column (21) is rotatably connected to the sliding grooves (13), and a torsion spring (15) is sleeved on the fixing column (21), wherein two ends of the torsion spring (15) are respectively fixed to one side of the limiting rod (14) and the inner wall of the sliding grooves (13), wherein the upper end of the limiting rod (14) passes through the sliding grooves (13) and extends into the corresponding protective cover (2), and the limiting rod (14) is plug-fitted with the protective cover (2); A plurality of power components are provided, each of the power components being located in the protective shell (1) and respectively used to drive a plurality of limit rods (14) to rotate.

2. A cargo transport tensioner according to claim 1, characterized in that: The limiting component comprises: Two fixing rods (3), the two fixing rods (3) are symmetrically fixedly installed on one side of the protective cover (2), one of the fixing rods (3) is provided with a sliding groove (4), a sliding plate (5) is slidably installed in the sliding groove (4), one end of the sliding plate (5) passes through the sliding groove (4) and extends into the other fixing rod (3), one end of the sliding plate (5) is plugged with the other fixing rod (3), and the other end of the sliding plate (5) is fixedly installed with a plurality of springs (6) fixed to the inner wall of the sliding groove (4), the limit frame (12) is slidably connected to the fixing rod (3), and one side of the sliding plate (5) passes through the sliding groove (4) and extends to the outside.

3. A cargo transport tensioner according to claim 1, characterized in that: The drive assembly comprises: A worm wheel (16) is rotatably mounted in the power chamber (7) and located at one end of the rotating column (9). The worm wheel (16) is coaxially connected to the rotating column (9). A worm (17) is rotatably mounted in the power chamber (7) and located at the bottom of the worm wheel (16). The worm (17) is meshed with the worm wheel (16), and one end of the worm (17) passes through the power chamber (7) and extends to the outside.

4. A cargo transport tensioner according to claim 1, characterized in that: The power assembly comprises: A sliding rod (18), wherein the sliding rod (18) is slidably installed in the second sliding groove (13), and a plurality of tension springs (19) fixed to the inner wall of the second sliding groove (13) are fixedly installed at the bottom of the sliding rod (18), the top of the sliding rod (18) is in close contact with the lower ends of the two limit rods (14), and one side of the sliding rod (18) passes through the second sliding groove (13) and extends to the outside.

5. A cargo transport tensioner according to claim 3, characterized in that: An operating disc (20) is fixedly mounted on one end of the worm (17).

6. A cargo transport tensioner according to claim 1, characterized in that: The cross-section of the limiting rod (14) is V-shaped.

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