CN218415563U - Cable laying device - Google Patents

Abstract

The utility model discloses a cable laying device, including first conveyer and the second conveyer that is used for conveyor cable, a mechanism and the driven pulley are lifted to first lifting mechanism and second for lifting the cable, first conveyer and first lifting mechanism are located the front side that the structure was worn to establish by the cable, second conveyer and second lifting mechanism are located the rear side that the structure was worn to establish by the cable, first lifting mechanism is located the next station of first conveyer, the second lifting mechanism is located the last station of second conveyer, the top that first lifting mechanism and second lifted at least first lifting mechanism in the mechanism is fixed with the driven pulley. The utility model adopts the mechanical cable laying, the cable is conveyed to the narrow positions such as the civil air defense door, the cable interlayer hole, the escalator foundation pit passage and the like, and the problem of low cable laying efficiency at the positions such as the civil air defense door, the cable interlayer hole, the escalator foundation pit passage and the like in the conventional manpower crossing region is solved; and the cable laying device has simple structure, simple laying operation and high safety.

Description

Cable laying device

Technical Field

The utility model relates to a track traffic construction technical field, more particularly, the utility model relates to a cable laying device.

Background

Along with the rapid development of urban rail transit industry in China, subway construction projects are increased day by day, and in the construction process of subway sections and station interlayers, various cables between two stations need to pass through civil air defense door openings to be laid or need to be laid through narrow spaces such as interlayer reserved holes and escalator foundation pit passages. At present, the cables laid at positions such as civil air defense doors, cable interlayer holes, escalator foundation pit channels and the like are mainly laid by manpower, the method is low in cable laying efficiency, occupies a rail-mounted area and an interlayer channel for a long time, brings inconvenience to construction of other units, causes serious cross construction, prolongs the construction period by a large amount, and is difficult to implement under the condition of short construction period.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model discloses innovatively provide a cable laying device adopts mechanical cabling, with cable transport to narrow positions such as people's air defense door, cable interlayer hole, escalator foundation ditch passageway, solved the problem that the interval cable laying efficiency is low such as people's air defense door, cable interlayer hole, escalator foundation ditch passageway is worn to conventional manpower, cable laying device simple structure moreover lays easy operation, and the security is high.

In order to achieve the technical purpose, the utility model discloses a cable laying device, which comprises a first conveyor and a second conveyor for conveying cables, a first lifting mechanism and a second lifting mechanism for lifting the cables, and a turnabout drum for changing direction,

first conveyer and first lifting mechanism are located the front side that the structure was worn to establish by the cable, and second conveyer and second lifting mechanism are located the rear side that the structure was worn to establish by the cable, and first lifting mechanism is located the next station of first conveyer, and second lifting mechanism is located the last station of second conveyer, first lifting mechanism with at least in the second lifting mechanism the top of first lifting mechanism is fixed with turnabout drum.

Further, first lifting mechanism with the second lifting mechanism all includes the support frame and the conveyor roll of slope, and what be parallel to each other between a plurality of conveyor rolls fixes lifting on the frame, a plurality of conveyor roll follow the length direction who lifts the frame arranges, conveyor roll's axial perpendicular to lift the length direction of frame, conveyor roll with lifting and rotating the frame and connecting, the bottom of the support frame of first lifting mechanism is close to first conveyer, top are close to the cable and wear to establish the structure, the top that the mechanism was lifted to the second is close to the cable and wears to establish the structure, the bottom is close to the second conveyer, the driven roll is fixed lifting and lifting the top of frame.

Furthermore, one or more elastic restraining belts are further fixed on the lifting frame, two ends of each elastic restraining belt are respectively connected with two sides of the lifting frame in the width direction, and the elastic restraining belts are arranged along the length direction of the lifting frame.

Further, first lifting mechanism with the second lifting mechanism all includes vertical lifting support, the vertical lifting support top of first lifting mechanism is fixed with turnabout drum, the vertical lifting support top of second lifting mechanism is fixed with the gyro wheel of lifting, set up the groove that is used for placing the cable on the wheel face of lifting the gyro wheel.

Further, the first lifting mechanism and the second lifting mechanism comprise vertical lifting supports, and the top parts of the vertical lifting supports of the first lifting mechanism and the second lifting mechanism are respectively fixed with the direction-changing rollers.

Furthermore, a walking wheel is fixed at the bottom of the vertical lifting support.

Further, the turnabout drum comprises a drum body and a support, the drum body is rotatably connected with the support, and the drum body rotates by taking the direction perpendicular to the axial direction of the drum body as an axis.

Further, the last station of the first conveyor and the next station of the second conveyor are provided with ground pulleys.

And the remote controller is used for controlling the opening and closing of the first conveyor and the second conveyor and is electrically connected with the first conveyor and the second conveyor respectively.

The utility model has the advantages that:

the utility model discloses a cable laying device adopts mechanical cabling, carries the cable to narrow positions such as people's air defense door, cable intermediate layer hole, escalator foundation ditch passageway, has solved the problem that the interval is worn to people's air defense door, cable intermediate layer hole, escalator foundation ditch passageway etc. and the cable laying efficiency is low between conventional manpower, and cable laying device simple structure lays easy operation moreover, and the security is high.

Drawings

Fig. 1 is a schematic structural view of a cable laying apparatus according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a cable laying apparatus according to a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first lifting mechanism and a second lifting mechanism according to a first embodiment of the present invention;

fig. 4 is a schematic view of the lifting process of the vertical lifting support according to the embodiment of the present invention;

fig. 5 is a side view of a direction-changing drum according to an embodiment of the present invention.

In the figure, the position of the first and second end faces,

1. a first conveyor; 2. a second conveyor; 3. a first lifting mechanism; 4. a second lifting mechanism; 5. a direction-changing drum; 51. a drum body; 52. a support; 6. a cable penetrating structure; 7. a ground pulley; 8. a lifting frame; 9. a conveying roller; 10. an elastic binding band; 11. a vertical lifting support; 111. a support table; 112. an adjusting bracket; 113. a motor; 114. a rack; 12. lifting the roller; 13. a traveling wheel; 14. and (7) supporting legs.

Detailed Description

The cable laying device provided by the invention is explained and explained in detail below with reference to the attached drawings.

The embodiment specifically discloses a cable laying device, as shown in fig. 1 and 2, including first conveyer 1 and second conveyer 2 that are used for carrying cable, be used for lifting first lifting mechanism 3 and the second lifting mechanism 4 of cable and be used for the turnabout drum 5 that changes to, first conveyer 1 and first lifting mechanism 3 are located the front side that the structure 6 was worn to establish by the cable, second conveyer 2 and second lifting mechanism 4 are located the rear side that the structure 6 was worn to establish by the cable, first lifting mechanism 3 is located the next station of first conveyer 1, second lifting mechanism 4 is located the last station of second conveyer 2, at least the top of first lifting mechanism 3 is fixed with turnabout drum 5 in first lifting mechanism 3 and the second lifting mechanism 4. That is, the first conveyor 1 and the first lifting mechanism 3 are symmetrically arranged on two sides of the cable penetrating structure 6 with the second conveyor 2 and the second lifting mechanism 4, the cable head end needing to be conveyed sequentially passes through the first conveyor 1, the first lifting mechanism 3, the direction-changing drum 5 at the top of the first lifting mechanism 3, the cable penetrating structure 6, the direction-changing drum 5 at the top of the second lifting mechanism 4 (if the top of the second lifting mechanism 4 is fixed with the direction-changing drum 5), and the second lifting mechanism 4 and the second conveyor 2 are conveyed and laid. The first conveyor 1 and the second conveyor 2 are started simultaneously, cables pass through the cable penetrating structure 6 after being redirected by the conveying of the first conveyor 1, the conveying and lifting of the first lifting mechanism 3 and the direction-changing drum 5 at the top of the first lifting mechanism 3, and are laid after being conveyed and lifted by the second lifting mechanism 4 and the conveying of the second conveyor 2. If a direction-changing roller 5 is fixed at the top of the second lifting mechanism 4, the cable is lifted and conveyed by the second lifting mechanism 4 and the second conveyor 2 after being changed by the direction-changing roller 5 at the top of the second lifting mechanism 4.

In this embodiment, the cable penetrating structure 6 refers to a narrow position structure such as a civil air defense door, a cable interlayer hole, an escalator foundation pit passage and the like in a subway tunnel.

The first conveyor 1 and the second conveyor 2 may employ a belt conveyor.

In some embodiments, as shown in fig. 1, the previous station of the first conveyor 1 and the next station of the second conveyor 2 are provided with ground pulleys 7 for positioning and guiding the cable. The cable is positioned and guided by a ground pulley 7 at a station on the first conveyor 1 to be conveyed, and the general direction of the cable is controlled; and the cable is conveyed by the second conveyor 2 and then positioned and guided by a ground pulley 7 of the next station to determine the laying direction.

As shown in fig. 3, the first lifting mechanism 3 and the second lifting mechanism 4 both include an inclined lifting frame 8 and a conveying roller 9, the inclination angle of the lifting frame 8 can be set and adjusted according to the specific height of the cable penetrating structure 6, the conveying rollers 9 are fixed on the lifting frame 8 in parallel, the conveying rollers 9 are arranged along the length direction of the lifting frame 8, the axial direction of the conveying rollers 9 is perpendicular to the length direction of the lifting frame 8, the conveying rollers 9 are rotatably connected with the lifting frame 8, a fixed shaft along the width direction of the conveying rollers is fixed on the lifting frame 8, the conveying rollers 9 are sleeved on the fixed shaft, the outer surface of the conveying rollers 9 is in contact with the cable, the conveying rollers 9 are rotated around the fixed shaft under the driving of the moving cable, the cable is conveyed, and the friction force in the cable conveying process is reduced. The lifting frame 8 can be a rectangular frame, the fixed shaft is fixed inside the rectangular frame, two ends of the fixed shaft are connected with two sides of the rectangular frame in the width direction, the conveying roller 9 is sleeved on the fixed shaft, and the top of the conveying roller 9 is higher than that of the rectangular frame and used for being in contact with a cable and conveying the cable. The lifting frame 8 can also be a rectangular plate, a fixed shaft fixing frame is arranged above the top surface of the rectangular plate, the conveying roller 9 is sleeved on the fixed shaft, the bottom of the conveying roller 9 is higher than the top surface of the lifting frame 8, and the top surface of the conveying roller 9 is in contact with the cable and conveys the cable. As shown in fig. 1, the bottom of the lifting frame 8 of the first lifting mechanism 3 is close to the first conveyor 1, the top is close to the cable penetrating structure 6, the top of the second lifting mechanism 4 is close to the cable penetrating structure 6, the bottom is close to the second conveyor 2, and the first lifting mechanism 3 and the second lifting mechanism 4 form a splayed shape for lifting and conveying cables. The bend pulley 5 is fixed at the top of the lifting frame 8 and is used for changing the direction of the cable, so that the cable can better penetrate through the cable penetrating structure 6, and the outer protection layer caused by friction of the cable and the cable penetrating structure 6 is prevented from being damaged. In this embodiment, the top of the lifting frame 8 of the first lifting mechanism 3 and the top of the lifting frame 8 of the second lifting mechanism 4 are fixed with direction-changing drums 5.

As shown in fig. 3, one or more elastic restraining strips 10 are further fixed on the lifting frame 8, two ends of the elastic restraining strips 10 are respectively connected with two sides of the lifting frame 8 in the width direction, and the elastic restraining strips 10 are arranged along the length direction of the lifting frame 8. The cable is located between conveying cylinder 9 and elastic constraint area 10, and elastic constraint area 10 plays certain constraint effect, restricts the direction of cable, avoids the cable to follow first lifting mechanism 3 and the slippage on second lifting mechanism 4 in transportation process, improves the security of cable laying in-process.

As shown in fig. 2, in another embodiment, the first lifting mechanism 3 and the second lifting mechanism 4 both include a vertical lifting support 11, a direction-changing drum 5 is fixed on a top of the vertical lifting support 11 of the first lifting mechanism 3, a lifting roller 12 is fixed on a top of the vertical lifting support 11 of the second lifting mechanism 4, and a groove for placing a cable is formed on a wheel surface of the lifting roller 12. The vertical lifting support 11 can be a manual lifting support or an electric lifting support driven by a motor 113 to adjust the height of the vertical lifting support, so that a cable is lifted. As shown in fig. 4, the vertical lifting support 11 includes a support base 111 at the bottom and an adjusting bracket 112 at the top, and the adjusting bracket 112 is inserted into the support base 111 and can vertically slide up and down along the support base 111; the vertical up-and-down sliding of the adjusting bracket 112 can be operated manually, at this time, a threaded hole perpendicular to the sliding direction of the adjusting bracket 112 can be formed in the side part of the supporting table 111, and the sliding of the adjusting bracket 112 is locked by a fastening bolt screwed into the threaded hole and the inner end part of the fastening bolt is abutted against the adjusting bracket 112, so that the height adjustment of the adjusting bracket 112 can be realized, and the height of the vertical lifting bracket 11 can be adjusted; the vertical up-and-down sliding of the adjusting frame 112 can be controlled by a motor 113, and the motor 113 drives the adjusting frame 112 to vertically slide up and down by rotating a linear motion mechanism. For example, the rotating-to-linear motion mechanism is a rack-and-pinion mechanism, a body of the motor 113 is fixed on the support table 111, an output shaft of the motor 113 is coaxially connected with a gear of the rack-and-pinion mechanism, a rack of the rack-and-pinion mechanism is vertically arranged and fixedly connected with the adjusting bracket 112, the gear is meshed with the rack 114, the rotation of the output shaft of the motor 113 drives the gear to rotate, the gear rotates to enable the rack 114 meshed with the gear to vertically move up and down, and therefore the adjusting bracket 112 is driven to slide up and down along the support table 111, and height adjustment is achieved. If the motor 113 rotates forward to control the adjusting bracket 112 to ascend, the adjusting bracket 112 is controlled to descend when the motor 113 rotates reversely. The direction-changing drum 5 and the lift roller 12 are fixed to the top of the adjusting bracket 112. The direction of the cable is changed by the direction-changing drum 5 at the top of the vertical lifting support 11 of the first lifting mechanism 3, the lifting roller 12 at the top of the vertical lifting support 11 of the second lifting mechanism 4 is fixed at the top of the vertical lifting support 11 through the roller support, the lifting roller 12 rotates around the axial direction of the lifting roller 12 per se relative to the roller support, the cable is placed in a groove on the wheel surface of the lifting roller 12, and the lifting roller 12 rotates to lift and convey the cable. In this embodiment, the number of lifting rollers 12 is two, arranges in tandem, arranges along the direction of delivery of cable promptly, and preceding lifting rollers 12 is close to cable wear to establish structure 6, and the gyro wheel that follows is close to second conveyer 2, and the top of preceding lifting rollers 12 is higher than the gyro wheel 12 that lifts behind, forms the face of lifting of slope.

In another embodiment, the first lifting mechanism 3 and the second lifting mechanism 4 each include a vertical lifting support 11, and the top of the vertical lifting support 11 of the first lifting mechanism 3 and the top of the vertical lifting support 11 of the second lifting mechanism 4 are fixed with direction-changing drums 5. The cable is redirected before and after the cable penetrating structure 6. The structure of the vertical lifting support 11 of this embodiment is the same as that of the vertical lifting support 11 of the embodiment shown in fig. 4, and a vertical lifting support 11 commonly used in the art may also be used, which is not described herein again.

As shown in fig. 4, road wheels 13 are fixed to the bottom of the vertical elevating bracket 11. The walking wheels 13 can be universal wheels with brakes, the universal wheels are convenient for moving the vertical lifting support 11, labor is saved, and the walking wheels are fixed at the specified position through the brakes after being moved to the specified position. The walking wheels 13 can also be ordinary wheels, supporting legs 14 are fixed on the side portions of the vertical lifting supports 11, the supporting legs 14 are rotatably connected with the vertical lifting supports 11, when the vertical lifting supports 11 move, the supporting legs 14 rotate upwards, the walking wheels 13 rotate to enable the vertical lifting supports 11 to move, after the supporting legs are moved to a specified position, the supporting legs 14 rotate downwards, the supporting legs are supported on the ground, the walking wheels 13 are overhead, the bottom surfaces of the walking wheels 13 are not in contact with the ground any more, and the vertical lifting supports 11 can not move any more.

As shown in fig. 5, the direction-changing drum 5 includes a drum body 51 and a support 52, the drum body 51 is rotatably connected to the support 52, the drum body 51 rotates around a direction perpendicular to the axial direction of the drum body 51, the support 52 is fixed at the top of the lifting mechanism where the drum body is located, the drum body 51 is placed along the cable conveying direction, the cable penetrates into the drum body 51, the height of the front end and the rear end of the drum body 51 can be adjusted through rotation of the drum body 51, namely, the inclination degree of the drum body 51 itself is adjusted, so that the cable can be naturally transited to the cable penetrating structure 6 from the lifting mechanism, and the damage of the outer protective skin in the cable conveying process is reduced.

In the embodiment, the remote controller is used for controlling the opening and closing of the first conveyor 1 and the second conveyor 2, and the remote controller is electrically connected with the first conveyor 1 and the second conveyor 2 respectively. The opening of the first conveyor 1 and the second conveyor 2 can be controlled through a remote controller to carry out conveying work, and the stopping of the two conveyors can be controlled after the conveying and laying are finished. If the vertical lifting support 11 is controlled to lift through the motor 113, the remote controller can also be electrically connected with the motor 113 to control the starting, stopping and forward and reverse rotation of the motor 113. The specific connection mode and control method are common knowledge in the art and are not described herein.

Two conveyors are adopted in the cable laying device, synchronous cable conveying is achieved, the cable conveying angle is adjusted through the turnabout drum 5, and the conveying height is adjusted through the first lifting mechanism 3 and the second lifting mechanism 4. According to the requirement of the cable laying radius, cables of various specifications are taken according to the minimum bending radius, the cable lifting height and the laying angle are determined, the heights of the first lifting mechanism 3 and the second lifting mechanism 4 are adjusted, the first lifting mechanism 3 and the second lifting mechanism 4 are firmly fixed, and the bend drums 5 are installed at the tops of the first lifting mechanism 3 and the second lifting mechanism 4 and are used for adjusting the cable laying angle and preventing the outer protection layer from being damaged due to friction in the cable conveying process. After confirming the cable transport starting point and terminal point, install first conveyer 1 and second conveyer 2, still fix a position first and lift mechanism 3 and second and lift mechanism 4, put into first lift mechanism 3 and turnabout drum 5 again after passing in first conveyer 1 with the cable and try to carry, through first lift mechanism 3 with the cable adjust to people's air defense door, cable intermediate layer cavity, escalator foundation ditch passageway etc. highly the department wait normally through after crossing over the point, guide cable laying to second and lift mechanism 4, at last in second conveyer 2. The first conveyor 1 and the second conveyor 2 are started and stopped synchronously through a remote controller, and therefore stable laying of cables can be achieved.

The embodiment can solve the problems of low efficiency of manual cable laying and damage of an outer protective layer of the cable when the cable is laid at narrow positions such as a civil air defense door, a cable interlayer hole, an escalator foundation pit channel and the like, reduces the labor intensity and improves the construction quality. Meanwhile, the number of workers is greatly reduced, and the influence of cross construction among different processes is reduced. The cable laying device is small in size, does not damage cables, is convenient to operate, and is particularly suitable for reconstruction and construction occasions of narrow spaces and operation lines. The cable laying device can be used in series, and multi-angle continuous cable conveying is achieved.

In the description of the present invention, it is to 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", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the terms "this embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and simple improvements made in the spirit of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A cable laying device is characterized by comprising a first conveyor (1) and a second conveyor (2) for conveying cables, a first lifting mechanism (3) and a second lifting mechanism (4) for lifting the cables, and a direction-changing roller (5) for changing direction,

first conveyer (1) and first lifting mechanism (3) are located the front side of cable penetrating structure (6), and second conveyer (2) and second lifting mechanism (4) are located the rear side of cable penetrating structure (6), and first lifting mechanism (3) are located the next station of first conveyer (1), and second lifting mechanism (4) are located the last station of second conveyer (2), first lifting mechanism (3) with second lifting mechanism (4) are at least in the top of first lifting mechanism (3) is fixed with turnabout drum (5).

2. The cable laying device according to claim 1, characterized in that first lifting mechanism (3) and second lifting mechanism (4) all include inclined lifting frame (8) and conveying roller (9), and a plurality of conveying roller (9) are fixed on lifting frame (8) in parallel to each other, and a plurality of conveying roller (9) are arranged along the length direction of lifting frame (8), the axial direction of conveying roller (9) is perpendicular to the length direction of lifting frame (8), conveying roller (9) with lifting frame (8) rotates and is connected, the bottom of lifting frame (8) of first lifting mechanism (3) is close to first conveyer (1), the top is close to cable penetrating structure (6), the top of second lifting mechanism (4) is close to cable penetrating structure (6), the bottom is close to second conveyer (2), and bend roller (5) is fixed at the top of lifting frame (8).

3. The cable laying device according to claim 2, wherein one or more elastic restraining strips (10) are further fixed on the lifting frame (8), two ends of each elastic restraining strip (10) are respectively connected with two sides of the lifting frame (8) in the width direction, and the elastic restraining strips (10) are arranged along the length direction of the lifting frame (8).

4. The cable laying device according to claim 1, wherein the first lifting mechanism (3) and the second lifting mechanism (4) comprise vertical lifting supports (11), the direction-changing drum (5) is fixed to the tops of the vertical lifting supports (11) of the first lifting mechanism (3), lifting rollers (12) are fixed to the tops of the vertical lifting supports (11) of the second lifting mechanism (4), and grooves for placing cables are formed in the wheel surfaces of the lifting rollers (12).

5. The cabling arrangement according to claim 1, wherein the first lifting mechanism (3) and the second lifting mechanism (4) each comprise a vertical lifting bracket (11), and the direction-changing drums (5) are fixed on top of the vertical lifting brackets (11) of the first lifting mechanism (3) and the second lifting mechanism (4).

6. Cable-laying device according to claim 4 or 5, characterized in that road wheels (13) are fixed to the bottom of the vertical lifting bracket (11).

7. The cabling arrangement according to any one of claims 2-5, wherein the direction-changing drum (5) comprises a drum body (51) and a bracket (52), the drum body (51) being rotatably connected to the bracket (52), the drum body (51) being rotatable about an axis perpendicular to the axial direction of the drum body (51).

8. Cabling arrangement according to claim 1, characterized in that the last station of the first conveyor (1) and the next station of the second conveyor (2) are provided with ground pulleys (7).

9. Cabling arrangement according to claim 1, further comprising a remote control for controlling the opening and closing of the first conveyor (1) and the second conveyor (2), the remote control being electrically connected to the first conveyor (1) and the second conveyor (2), respectively.

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