CN221093198U - Movable net bag retraction device - Google Patents

Abstract

The utility model provides a movable net bag retraction device which comprises a vehicle-mounted platform, mounting frames, net retraction units, net deployment units, tensioning units, net retraction cables, net deployment cables and tensioning cables, wherein the net retraction cables, the net deployment cables and the tensioning cables are connected to a net bag; the net collecting unit, the net distributing unit and the tensioning unit are arranged on the mounting frame; the net collecting unit is connected with the net collecting cable to drive the net collecting cable to stretch and retract so as to realize net collecting; the net laying unit is connected with the net laying cable to drive the net laying cable to stretch and retract so as to realize net laying; the tensioning unit is connected with the tensioning cable to drive the tensioning cable to stretch and move to assist in laying the net. According to the utility model, the moving track is arranged on the vehicle-mounted platform, so that the net collecting unit, the net distributing unit and the tensioning unit can move relative positions of the net collecting unit, the net distributing unit and the tensioning unit according to the direction of the water intake open channel, the adaptability of the device is improved, the equipment investment is reduced, and the operation and maintenance workload of the equipment is reduced.

Description

Movable net bag retraction device

Technical Field

The utility model relates to the technical field of nuclear power, in particular to a movable net bag retraction device.

Background

The coastal nuclear power stations in China all adopt seawater as a cold source, and the cold source event caused by the invasion of marine organisms or marine garbage influences the operation and maintenance of the power plant, so that the load reduction, the tripping and even the pile tripping of the unit are caused, and the economic loss and the social influence are huge.

The utility model provides a cold source incident for the reply frequently takes place at nuclear power plant, has arranged string bag intercepting device in the water intaking open channel, is provided with string bag and puts the device for the receipts net, the cloth net of improvement string bag, is provided with receipts net unit, cloth net unit and taut unit on every string bag receipts put the device, and current string bag receipts put the device and has following defect: each nuclear power plant is provided with a plurality of water intake open channels in a distributed manner, however, the existing net bag net collecting device is mainly fixed on a collecting and releasing platform in the field environment, which means that each water intake open channel is correspondingly and fixedly provided with a net bag collecting and releasing device, so that a large amount of equipment investment is caused, and the workload of equipment operation and maintenance is increased; the net collecting unit, the net distributing unit and the tensioning unit are relatively fixed, and the setting direction of each water intake open channel is likely to be opposite in practice, so that the original net bag collecting and releasing device cannot be directly moved to the opposite water intake open channel, and the relative positions of the net collecting unit, the net distributing unit and the tensioning unit are required to be moved.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a movable net bag retraction device.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a portable string bag receive and releases device, including on-vehicle platform, set up on-vehicle platform a plurality of installing frame, receipts net unit, cloth net unit, tensioning unit, connect in the net bag receive net hawser, connect in the net bag cloth net hawser, connect in the net bag strain hawser, on-vehicle platform corresponds every installing frame is provided with a plurality of removal track, every installing frame is along corresponding removal track extending direction for on-vehicle platform moves;

The net collecting unit, the net distributing unit and the tensioning unit are arranged on the mounting frame;

the net collecting unit is connected with the net collecting cable to drive the net collecting cable to stretch and retract so as to realize net collecting;

The net laying unit is connected with the net laying cable to drive the net laying cable to stretch and move so as to realize net laying; the tensioning unit is connected with the tensioning cable to drive the tensioning cable to stretch and retract to assist the net laying cable to lay the net.

Further, it is preferable that a limiting buckle is arranged between the mounting frame and the vehicle-mounted platform so as to limit the movement of the mounting frame.

Further, it is preferable that the extending direction of the moving rail is perpendicular to the extending direction of the vehicle-mounted platform.

Further, preferably, the net collecting unit is a net collecting winch which is arranged on the installation frame and connected with the net collecting cable to drive the net collecting cable to stretch out and draw back, and the vehicle-mounted platform is provided with a net collecting fixed pulley connected with the net collecting cable.

Further, preferably, the tensioning unit is a tensioning winch which is arranged on the installation frame and connected with the tensioning cable to drive the tensioning cable to stretch out and draw back, and the vehicle-mounted platform is provided with a tensioning fixed pulley connected with the tensioning cable.

Further, preferably, the net laying unit is a net laying winch which is arranged on the installation frame and connected with the net laying cable to drive the net laying cable to stretch out and draw back, and the vehicle-mounted platform is provided with a net laying fixed pulley connected with the net laying cable.

Further, it is preferable that the net collecting unit is disposed at a distance from the net distributing unit, and the net collecting unit is disposed at a rear side of the net distributing unit with respect to an arrangement direction of the net bag.

Further, it is preferable that the net collecting unit, the net laying unit and the tension unit are respectively mounted on different mounting frames; or the net collecting unit and the net distributing unit are arranged on different mounting frames, and the net distributing unit and the tensioning unit are arranged on the same mounting frame side by side.

Further, preferably, the net distribution cable is detachably arranged at the bottom of the net mouth of the net bag; the net collecting cable is detachably connected to the bottom of the net bag through the top of the net opening of the net bag;

The tensioning cable comprises a tensioning main rope and a plurality of tensioning sub-ropes; one end of each tensioning rope is connected with the tensioning main rope, and the other end of each tensioning rope is connected with the side edge of the net opening; the tensioning main rope is connected to the tensioning unit;

further, preferably, a plurality of net bags are arranged, and the net bags are arranged side by side;

The net collecting units are arranged in groups, and the net collecting units arranged in groups are arranged side by side at intervals;

The net laying units are arranged in groups, and the net laying units arranged in groups are arranged on two sides of the net collecting unit side by side at intervals.

The tensioning units are arranged in groups, the tensioning units arranged in groups are arranged side by side at intervals, and the tensioning units and the net distribution units are arranged side by side.

Excellent effects of the mobile string bag device embodying the present utility model: this portable string bag device is provided with on-vehicle platform to through setting up the removal track on-vehicle platform, make receipts net unit, cloth net unit and take-up unit can remove its relative position according to the orientation of water intaking open channel, improve the suitability of device, can realize receipts net and cloth net of string bag that a device adaptation nuclear power plant is all water intaking open channel, reduce equipment investment, reduce the operation maintenance work load of equipment.

Drawings

In order to more clearly illustrate the technical solution of the present utility model, the following description will be given with reference to the accompanying drawings and examples, it being understood that the following drawings only illustrate some examples of the present utility model and should not be construed as limiting the scope, and that other related drawings can be obtained from these drawings by those skilled in the art without the inventive effort. In the accompanying drawings:

FIG. 1 is a schematic view of an angle of a mobile string bag storage device according to some embodiments of the present utility model;

FIG. 2 is a top view of a mobile string bag storage device in use according to some embodiments of the present utility model;

Fig. 3 is a schematic view illustrating another angle of use of the mobile string bag storage apparatus according to some embodiments of the present utility model.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", etc. are configured and operated in specific directions based on the directions or positional relationships shown in part of the drawings, are merely for convenience of description of the present utility model, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," and the like are used merely for convenience in describing the present technology and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," and the like may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.

In the present utility model, one, two, three, four, or even more net bags 70 may be provided on the water intake open channel, and a plurality of net bags 70 may be sequentially connected in series and arranged side by side, which is not particularly limited herein.

In some embodiments, the first anchor rings 71 may be disposed on the bottom surface of the net opening of the net bag 70, and the first anchor rings 71 may be a plurality, such as 2, 3, 4, or even more, and the first anchor rings 71 are uniformly spaced and distributed, which is not limited in particular.

In some embodiments, the second anchor rings 72 may be disposed at the net mouth of the net bag 70 and located at two opposite sides of the net mouth, and a plurality of second anchor rings 72 may be disposed at each side of the net mouth, and the second anchor rings 72 may be a plurality, such as 2, 3, 4, or even more, and not limited to, the second anchor rings 72 are uniformly spaced, and the second anchor rings 72 at two sides of the net mouth may be symmetrically disposed.

In some embodiments, third anchor rings are disposed side by side and spaced apart along the length of the net bag 70, and the third anchor rings may be disposed in a plurality of rows, and the plurality of rows of third anchor rings may be disposed corresponding to the plurality of net bags 70, and each row of third anchor rings may include a plurality of third anchor rings disposed at intervals along the length of the net bag 70.

As shown in fig. 1 to 3, a mobile net bag retraction device comprises a vehicle-mounted platform 10, a plurality of installation frames 20 arranged on the vehicle-mounted platform 10, a net retraction unit 30, a net deployment unit 40, a tensioning unit 50, a net retraction cable 31 connected to a net bag 70, a net deployment cable 41 connected to the net bag 70, and a tensioning cable 51 connected to the net bag 70; the vehicle-mounted platform 10 can be provided with a net collecting unit 30, a net distributing unit 40 and a tensioning unit 50, and rollers are arranged at the bottom of the vehicle-mounted platform 10, so that the vehicle-mounted platform is convenient to move to a target water intake open channel.

The net twine 41 is connected to the net bag 70 and can be used for laying the net bag 70, in particular, the net twine 41 is detachably connected to the first anchor ring 71. The net closing cable 31 may be connected to the net bag 70 for closing the net, in particular, in some embodiments, the net closing cable 31 may be detachably connected to the third anchor ring. The tightening cable 51 may be connected to the net bag 70 to assist in the deployment of the net, the tightening cable 51 being detachably connected to the second anchor ring 72.

The vehicle-mounted platform 10 is provided with a plurality of mounting frames 20, the net collecting unit 30, the net distributing unit 40 and the tensioning unit 50 are mounted on the mounting frames 20, a plurality of moving rails 11 are arranged on the vehicle-mounted platform 10 corresponding to each mounting frame 20, each mounting frame 20 moves relative to the vehicle-mounted platform 10 along the extending direction of the corresponding moving rail 11, that is to say, the positions of the net collecting unit 30, the net distributing unit 40 and the tensioning unit 50 on the moving rails 11 are adjusted through the moving mounting frames 20, the position adjustment is further achieved, the net collecting and distributing requirements are further met, and the net bags 70 of water taking open channels with different directions are arranged and the adaptation degree of net collecting is improved. The net collecting unit 30 is disposed in the installation frame 20 and can be connected with the net collecting cable 31, so as to drive the net collecting cable 31 to stretch and retract, thereby collecting the net. The net laying unit 40 is arranged on the mounting frame 20 and connected with the net laying cable 41 to drive the net laying cable 41 to stretch and move so as to realize net laying; the tensioning unit 50 is arranged on the mounting frame 20, and the tensioning unit 50 is connected with the tensioning cable 51 to drive the tensioning cable 51 to perform telescopic movement to assist the net laying cable 41 to lay a net.

In some specific embodiments, the net collecting unit 30, the net distributing unit 40 and the tensioning unit 50 may be respectively mounted on different mounting frames 20, so that the positions of the net collecting unit 30, the net distributing unit 40 and the tensioning unit 50 can be conveniently adjusted by moving the individual mounting frames 20; or the net collecting unit 30 and the net distributing unit 40 are arranged on different mounting frames 20, the net distributing unit 40 and the tensioning unit 50 are arranged on the same mounting frame 20 side by side, and the tensioning unit 50 assists the net distributing unit 40 to distribute net, so that the tensioning unit 50 and the net distributing unit 40 can be mounted on the same mounting frame 20, the net distributing unit and the net distributing unit are convenient to match with each other, and the design of the mounting frame 20 can be reduced.

In a specific embodiment, the net collecting unit 30 and the net distributing unit 40 are arranged at intervals, and the net collecting unit 30 is arranged at the rear side of the net distributing unit 40 relative to the arrangement direction of the net bags 70, that is, the net distributing unit 40 is close to the arrangement direction of the net bags 70, so that net distribution is facilitated; the net collecting unit 30 is arranged at the rear side slightly far from the arrangement direction of the net bag 70, so that net collecting is convenient.

In a specific embodiment, a limiting buckle is arranged at the bottom of the mounting frame 20, and the mounting frame 20 is in limiting fixation with the vehicle-mounted platform 10 through the limiting buckle so as to limit the movement of the mounting frame 20, so that the mounting frame 20 can be fixed after being moved to a designated position along the moving track 11.

In a specific embodiment, the extending direction of the moving rail 11 is arranged perpendicular to the extending direction of the vehicle-mounted platform 10, that is, the extending direction of the moving rail 11 is perpendicular to the vehicle body of the vehicle-mounted platform 10; when the water intake open channel requiring net arrangement is positioned on the right side of the vehicle body of the vehicle-mounted platform 10, the net arranging unit 40 and the tensioning unit 50 are arranged close to the arrangement direction of the net bag 70 by moving the mounting frame 20 forwards, and the net collecting unit 30 is arranged far away from the arrangement direction of the net bag 70 by moving the mounting frame 20 backwards; when the water intake open channel to be covered is located on the left side of the vehicle body of the vehicle platform 10, the moving rail 11 perpendicular to the vehicle body of the vehicle platform 10 can directly move the installation frame 20 where the net covering unit 40 and the tensioning unit 50 are located backward along the extending direction of the moving rail 11 from the original position, and move the installation frame 20 where the net collecting unit 30 is located forward along the extending direction of the moving rail 11 from the original position, so as to improve the adaptability of the retraction device of the movable net bag 70.

In a specific embodiment, the net collecting unit 30 is a net collecting winch installed on the installation frame 20 and connected to the net collecting cable 31 to drive the net collecting cable 31 to stretch and retract, and the vehicle platform 10 is provided with a net collecting fixed pulley 32 connected to the net collecting cable 31. The net-collecting fixed pulley 32 is disposed on the vehicle-mounted platform 10, specifically, the net-collecting fixed pulley 32 is suspended on a column of the vehicle-mounted platform 10, and can be used for being connected with the net-collecting cable 31 to change the direction of the net-collecting cable 31. Specifically, the net winding cable 31 may be wound around the net winding winch around the net winding fixed pulley 32. The net winding engine is arranged on the vehicle-mounted platform 10 and can be connected with the net winding cable 31, and the net winding cable 31 can be driven to stretch and retract by rotation, so that net winding can be realized.

In a specific embodiment, the net laying unit 40 is a net laying winch mounted on the mounting frame 20 and connected to the net laying cable 41 to drive the net laying cable 41 to stretch and retract, the vehicle platform 10 is provided with a net laying fixed pulley 42 connected to the net laying cable 41, the net laying fixed pulley 42 is arranged side by side with the tensioning fixed pulley 52, and the net laying fixed pulley 42 can be arranged on the vehicle platform 10 and connected to the net laying cable 41. Specifically, the fixed netowrk pulley 42 may be disposed on a column of the vehicle platform 10 and may be used to change the direction of the netowrk cable 41. The net laying cable 41 can be wound around the net laying fixed pulley 42 and arranged on the net laying winch. The net laying winch can be arranged on the vehicle-mounted platform 10 side by side with the tensioning winch and can be connected with the net laying cable 41, and the net laying winch can drive the net laying cable 41 to stretch and retract through rotation, so that net collection or net laying is realized.

In a specific embodiment, the tensioning unit 50 is a tensioning winch mounted on the mounting frame 20 and connected to the tensioning cable 51 to drive the tensioning cable 51 to stretch and retract, the vehicle platform 10 is provided with a tensioning fixed pulley 52 connected to the tensioning cable 51, and the tensioning fixed pulley 52 can be suspended on a column provided on the vehicle platform 10 and can be connected to the tensioning cable 51 to change the direction of the tensioning cable 51. In some embodiments, the main rope of the tightening rope 51 may be wound around the tightening hoist by winding around the tightening fixed sheave 52. In some embodiments, the tensioning winch may be disposed on the vehicle platform 10 and may be connected to the tensioning cable 51, so as to drive the tensioning cable 51 to stretch and retract, thereby assisting in net deployment.

In some embodiments, the water intake open channel passing platform 80 may be partially extended into the water, the passing platform 80 may include a base 82, a pile foundation 83, and a ground platform 81, and the vehicle platform 10 is disposed on the ground platform 81. The base 82 may be disposed underwater, and the base 82 may be substantially rectangular. Of course, it is understood that in other embodiments, the base 82 may not be limited to being rectangular parallelepiped. The pile foundation 83 may be cylindrical, and the pile foundation 83 may extend toward the water surface along a direction perpendicular to the base 82. The number of pile foundations 83 may be four, and the four pile foundations 83 may be arranged at intervals. The four pile foundations 83 may be used to support the ground platform 81. Of course, it will be appreciated that in other embodiments, the pile foundation 83 may not be limited to four. In some embodiments, a plurality of fourth anchor rings 833 may be provided on the pile foundation 83; the fourth anchor rings 833 are spaced apart longitudinally along the pile foundation 83 and are configured for removable threading of the tensioning cables 51 to secure the tensioning cables 51. The ground platform 81 may be disposed at one end of the pile foundation 83 penetrating the water surface, and connected to the pile foundation 83 respectively. The net bags 70 may be disposed between two pile foundations 83 disposed adjacently to intercept marine organisms.

In a specific embodiment, the net laying cable 41 is detachably disposed at the bottom of the net mouth of the net bag 70, and the net laying unit 40 is detachably disposed on the first anchor ring 71 of the net bag 70 through the net laying cable 41; in some more specific embodiments, two netting cables 41 may be provided, and two netting cables 41 may be positioned on opposite sides of the net 70. The net collecting cable 31 is detachably connected to the bottom of the net bag 70 through the top of the net opening of the net bag 70, for example, the net collecting unit 30 is detachably connected to the third anchor ring through the net collecting cable 31; the tightening rope 51 includes a tightening main rope 511 and a plurality of tightening sub-ropes 512; one end of each tensioning sub-rope 512 is connected with the tensioning main rope 511, the other end of each tensioning sub-rope is connected with the side edge of the net mouth, one end of each tensioning main rope 511 is connected with the side edge of the net mouth of the net bag 70, and the other end of each tensioning main rope can sequentially penetrate through the fourth anchor ring 833 on the pile foundation 83 and be connected to the tensioning unit 50.

In one embodiment, a plurality of net bags 70 are provided, and a plurality of net bags 70 are arranged side by side; the net collecting units 30 are arranged in groups, and the net collecting units 30 arranged in groups are arranged side by side at intervals; the net arranging units 40 are arranged in groups, and the net arranging units 40 arranged in groups are arranged on two sides of the net collecting unit 30 at intervals; the tensioning units 50 are arranged in groups, the tensioning units 50 arranged in groups are arranged side by side at intervals, and the tensioning units 50 are arranged side by side with the cloth net units 40.

When the mobile net bag 70 winding and unwinding device is first installed, the net laying cables 41 are installed in the first step, specifically, one ends of the two net laying cables 41 and the net laying unit 40 are installed in place, and four branches at the tail ends of the two net laying cables 41 are placed on the vehicle-mounted platform 10 for subsequent connection with the bottom of a net mouth of the net bag 70. And secondly, installing one ends of the tensioning main ropes of the left tensioning cables 51 and the right tensioning cables 51 and the tensioning unit 50 in place, and placing the other ends of the tensioning main ropes of the two tensioning cables 51 and the two tensioning sub-ropes on the vehicle-mounted platform 10 for subsequent connection with a second anchor ring 72 at the side of the net opening.

In the first step, four branches of two net-laying cables 41 are respectively connected to four first anchor rings 71 at the bottom of the net opening of three net bags 70; secondly, connecting four net collecting cables 31, connecting one ends of the four net collecting cables 31 to a third anchor ring at the net opening in a buckling manner, and connecting the other ends of the four net collecting cables with net collecting units 30 respectively; thirdly, throwing the tail of the net bag 70 down into the water intake open channel, and arranging the rest net openings on the vehicle-mounted platform 10; fourthly, the other ends of the tensioning sub-ropes and the tensioning main ropes of the two tensioning cables 51 are respectively connected to a second anchor ring 72 at the side edge of the net mouth of the net bag 70 and can be connected with a loop type; fifth, the net bag 70 is put in place and tensioned by operating the net collecting unit 40 (net winding machine) and the tensioning unit 50 (tensioning winding machine) to rotate, and when the first anchor ring 71 and the second anchor ring 72 of the net bag 70 are reached, the net mouth of the net bag 70 is opened.

When the net is collected, a net distributing winch and a net collecting winch are rotated, and a net distributing cable 41 and a tensioning cable 51 are loosened; and secondly, operating the net collecting winch to drive four pre-arranged net collecting cables 31 to lift the bottom of the net mouth upwards, and combining the top edge of the net mouth with the bottom edge of the net mouth in the lifting process to realize closing. When the net mouth of the net bag 70 reaches the vehicle-mounted platform 10, immediately releasing the net laying cable 41 from the first anchor ring 71 of the net mouth, and reliably hanging the released net laying cable 41 with a fixed point on the vehicle-mounted platform 10 so as to facilitate the next net laying; thirdly, continuing to operate the net winding machine, when the second anchor ring 72 connected with the side edge of the net mouth of the tightening rope 51 ascends to the vehicle-mounted platform 10, releasing the tightening rope 51 from the net mouth, and reliably hooking the tightening rope 51 with a fixed point on the vehicle-mounted platform 10 so as to facilitate the next net laying; fourthly, continuing to operate the net winding machine, stopping operating the net winding machine when the net mouth of the net bag 70 reaches the limit position, and unwinding the net winding cable 31 from the net mouth after reliably connecting the fixed point on the vehicle-mounted platform 10 with the net bag 70; and fifthly, loosening the net collecting cable 31, hanging the net collecting cable 31 on any one of the third anchor rings arranged far away from the net mouth of the net bag 70, and continuing to rotate the net collecting winch, so that the whole net bag 70 is collected on the vehicle-mounted platform 10.

It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. The movable net bag collecting and releasing device is characterized by comprising a vehicle-mounted platform (10), a plurality of mounting frames (20) arranged on the vehicle-mounted platform (10), a net collecting unit (30), a net distributing unit (40), a tensioning unit (50), a net collecting cable (31) connected to a net bag (70), a net distributing cable (41) connected to the net bag (70) and a tensioning cable (51) connected to the net bag (70), wherein a plurality of moving rails (11) are arranged on the vehicle-mounted platform (10) corresponding to each mounting frame (20), and each mounting frame (20) moves relative to the vehicle-mounted platform (10) along the corresponding moving rail (11);

The net collecting unit (30), the net distributing unit (40) and the tensioning unit (50) are arranged on the mounting frame (20);

the net collecting unit (30) is connected with the net collecting cable (31) to drive the net collecting cable (31) to stretch to realize net collecting;

the net laying unit (40) is connected with the net laying cable (41) to drive the net laying cable (41) to stretch to realize net laying;

The tensioning unit (50) is connected with the tensioning cable (51) to drive the tensioning cable (51) to stretch and move to assist the net laying cable (41) to lay a net.

2. The mobile string bag retraction device according to claim 1, wherein a limit buckle is provided at the bottom of the installation frame (20), and the limit buckle is used for limiting and fixing the installation frame (20) and the vehicle-mounted platform (10).

3. Mobile tuck net retraction device according to claim 1, characterized in that the extension direction of the movement track (11) is arranged perpendicular to the extension direction of the vehicle platform (10).

4. The mobile net bag retraction device according to claim 1, wherein the net retraction unit (30) is a net retraction winch which is arranged on the installation frame (20) and is connected with the net retraction cable (31) to drive the net retraction cable (31) to retract, and the vehicle-mounted platform (10) is provided with a net retraction fixed pulley (32) connected with the net retraction cable (31).

5. The mobile string bag retracting device according to claim 1, wherein the tightening unit (50) is a tightening winch which is arranged on the installation frame (20) and is connected with the tightening cable (51) to drive the tightening cable (51) to stretch, and the vehicle-mounted platform (10) is provided with a tightening fixed pulley (52) connected with the tightening cable (51).

6. The mobile string bag winding and unwinding device according to claim 1, wherein the string bag unit (40) is a string net winding machine which is arranged on the installation frame (20) and is connected with the string net cable (41) to drive the string net cable (41) to stretch and retract, and the vehicle-mounted platform (10) is provided with a string net fixed pulley (42) connected with the string net cable (41).

7. The mobile net bag retracting device according to claim 1, wherein the net retracting unit (30) and the net distributing unit (40) are arranged at intervals, and the net retracting unit (30) is arranged at the rear side of the net distributing unit (40) relative to the arrangement direction of the net bag (70).

8. The mobile string bag storing device according to claim 7, wherein the string bag storing unit (30), the string bag arranging unit (40) and the tightening unit (50) are respectively mounted on different mounting frames (20); or the net collecting unit (30) and the net distributing unit (40) are arranged on different mounting frames (20), and the net distributing unit (40) and the tensioning unit (50) are arranged on the same mounting frame (20) side by side.

9. The mobile string bag storing and taking-out device according to claim 1, wherein the string bag arranging cable (41) is detachably arranged at the bottom of the string bag (70);

The net collecting cable (31) is detachably connected to the bottom of the net bag (70) through the top of the net opening of the net bag (70);

The tensioning cable (51) comprises a tensioning main rope (511) and a plurality of tensioning sub-ropes (512); one end of each tensioning sub-rope (512) is connected with the tensioning main rope (511) and the other end is connected with the side edge of the net mouth of the net bag; the tightening main rope (511) is connected to the tightening unit (50).

10. The mobile string bag storage device according to claim 1, wherein a plurality of string bags (70) are provided, and a plurality of string bags (70) are arranged side by side;

The net collecting units (30) are arranged in groups, and the net collecting units (30) arranged in groups are arranged side by side at intervals;

The net arranging units (40) are arranged in groups, and the net arranging units (40) arranged in groups are arranged on two sides of the net collecting unit (30) at intervals in parallel;

The tensioning units (50) are arranged in groups, the tensioning units (50) arranged in groups are arranged side by side at intervals, and the tensioning units (50) and the net distribution units (40) are arranged side by side.