CN219413413U - Drag chain device and working machine - Google Patents

Abstract

The utility model relates to the technical field of pipeline conveying, and provides a drag chain device, which is arranged on a telescopic arm, wherein the telescopic arm comprises a section of arm and a final section of arm, and the drag chain device comprises: the shield is detachably connected to the side wall of one arm; the head end of the drag chain is arranged on the side wall of the one arm, and the drag chain and the shield are staggered; the head end of the pipe body is connected with the tail end of the drag chain, the tail end of the pipe body is fixed on the side wall of the tail section arm, and the pipe body can move along the axis of the section arm; and the pipeline sequentially extends along the shield, the drag chain and the inner space of the pipe body. According to the drag chain device, the protective cover is detachably connected to the side wall of the one arm, and the drag chain and the protective cover are staggered, so that the arrangement space is reasonably distributed, and pipelines in the protective cover can be overhauled and maintained conveniently by detaching the protective cover.

Description

Drag chain device and working machine

Technical Field

The utility model relates to the technical field of pipeline conveying, in particular to a drag chain device and a working machine.

Background

The drag chain is a device for restraining a cable or an electric wire or an air pressure pipe and an oil pressure pipe so as to facilitate the rotation and the movement of the drag chain. For example, in an overhead working truck, a drag chain device is often composed of a drag chain, a fixed support plate, a wiring guard plate, etc., wherein the drag chain is disposed on the fixed support plate, the wiring guard plate is disposed at the bottom of the fixed support plate, and hydraulic and electric pipelines are accommodated in the wiring guard plate. However, this construction can cause the lines within the wiring guard to be difficult to maintain.

Disclosure of Invention

The utility model provides a drag chain device and an operation machine, which are used for solving the defect that a pipeline in a wiring guard plate is difficult to maintain in the prior art, realizing reasonable distribution of arrangement space and facilitating overhaul and maintenance of the pipeline in the guard plate by disassembling the guard plate.

The utility model provides a drag chain device, which is arranged on a telescopic arm, wherein the telescopic arm comprises a section of arm and a final section of arm, and the drag chain device comprises:

the shield is detachably connected to the side wall of one arm;

the head end of the drag chain is arranged on the side wall of the one arm, and the drag chain and the shield are staggered;

the head end of the pipe body is connected with the tail end of the drag chain, the tail end of the pipe body is fixed on the side wall of the tail section arm, and the pipe body can move along the axis of the section arm;

and the pipeline sequentially extends along the shield, the drag chain and the inner space of the pipe body.

According to the drag chain device provided by the utility model, the protective cover comprises the protective plate and two side plates, the two side plates are respectively connected to two sides of the protective plate, the side plates are provided with the connecting holes, and the protective plate is connected with the side wall of the arm section through the connecting holes.

According to the present utility model, there is provided a drag chain device, further comprising: the supporting frames are arranged on the side wall of the one section of arm at intervals and used for supporting the drag chain.

According to the drag chain device provided by the utility model, the support frame comprises a main plate, a first side plate and a second side plate;

the main board is connected with the side wall of the one section of arm;

the first side plate is connected to the free end of the main plate, and the second side plate is connected to the side portion of the main plate so as to form a containing groove between the second side plate and the first side plate.

The drag chain device provided by the utility model further comprises a fixing frame and a supporting plate, wherein the fixing frame and the supporting plate are sequentially arranged on the side wall of the section of arm, the supporting plate is arranged between the fixing frame and the supporting frame, and the fixing frame is fixedly connected with the head end of the drag chain.

According to the present utility model, there is provided a drag chain device, further comprising: the connecting support comprises a connecting part and a supporting part, wherein the connecting part is connected to the side wall of the tail arm, and the supporting part is connected to the bottom of the pipe body.

According to the drag chain device provided by the utility model, the telescopic arm further comprises: the pipe comprises at least one middle section arm, wherein a fixing piece is arranged on the side wall of the at least one middle section arm, a through hole is formed in the middle of the fixing piece, and the pipe body penetrates through the through hole and can move in the through hole.

According to the drag chain device provided by the utility model, the fixing piece comprises the nylon cushion block and the nylon fastener, the nylon cushion block is arranged on the side wall of the middle joint arm, and two ends of the nylon fastener are respectively connected with the nylon cushion block so as to form the through hole between the nylon fastener and the nylon cushion block.

According to the drag chain device provided by the utility model, the drag chain is connected with the pipe body through the drag bracket, and the drag bracket comprises a limiting plate which is used for limiting the pipeline.

The present utility model provides a work machine comprising any of the above-described tow chain devices.

According to the drag chain device, the protective cover is detachably connected to the side wall of the one arm, and the drag chain and the protective cover are staggered, so that the arrangement space is reasonably distributed, and pipelines in the protective cover can be overhauled and maintained conveniently by detaching the protective cover.

In the working machine provided by the embodiment of the utility model, the drag chain device is applied, so that the working machine also has the advantages described above, and the details are not repeated here.

Additional aspects and advantages of embodiments of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the utility model.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the drag chain apparatus provided by the present utility model on a telescoping arm;

FIG. 2 is a schematic diagram of a front view of a drag chain device provided by the present utility model on a telescoping arm;

FIG. 3 is a schematic view of the drag chain assembly of the present utility model in a bottom view on a telescoping arm;

FIG. 4 is a schematic structural view of a support bracket of the drag chain device provided by the utility model;

FIG. 5 is a schematic view of a structure of a fixing frame of a drag chain device provided by the utility model;

FIG. 6 is a schematic view of the structure of the support plate of the drag chain device provided by the present utility model;

FIG. 7 is a schematic view of the structure of the support bracket of the drag chain device provided by the present utility model;

FIG. 8 is a schematic structural view of a link bracket of the drag chain device provided by the present utility model;

FIG. 9 is a schematic view of the structure of a support bracket of the drag chain device provided by the present utility model;

FIG. 10 is a schematic front view of a nylon fastener of a drag chain device according to the present utility model;

FIG. 11 is a schematic top view of a nylon fastener of a tow chain device according to the present utility model;

FIG. 12 is a schematic diagram of a nylon spacer of the drag chain device provided by the present utility model;

fig. 13 is a schematic structural view of a traction bracket of a drag chain device provided by the present utility model.

Reference numerals:

110: a shield;

120: a drag chain;

130: a tube body;

140: a support frame; 141: a main board; 142: a first side plate; 143: a second side plate;

150: a fixing frame;

160: a support plate;

170: a support bracket;

180: a connecting bracket;

190: a support bracket;

211: nylon cushion blocks; 212: nylon fasteners;

220: a traction bracket; 221: a limiting plate;

310: a section of arm;

320: a tail arm;

330: and an intermediate arm.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The examples provided by the present utility model will now be described with reference to fig. 1 to 13, with the understanding that the following are merely illustrative embodiments of the present utility model and are not intended to limit the present utility model in any way.

FIG. 1 is a schematic view of the drag chain apparatus provided by the present utility model on a telescoping arm; FIG. 2 is a schematic diagram of a front view of a drag chain device provided by the present utility model on a telescoping arm; fig. 3 is a schematic bottom view of the drag chain device provided by the utility model on the telescopic arm. Please refer to fig. 1 to 3. The present embodiment provides a drag chain device for a conveying pipeline including an electric wire, an air pressure pipe, a hydraulic pipe, or the like. The tow chain device is typically provided on a telescopic arm, wherein the telescopic arm comprises a section arm 310 and a distal arm 320, the section arm 310 being connected to the work machine base, and the distal arm 320 being the end of the telescopic arm. The extension of the telescopic arm can be realized by driving the end arm 320 to be far away from the one section arm 310, and the shortening of the telescopic arm can be realized by driving the end arm 320 to be close to the one section arm 310. Of course, there may be at least one middle arm 330 between the arm 310 and the end arm 320, which is not limited in this embodiment.

As the telescoping arm is extended, the drag chain device is also extended to deliver the pipeline for other articulated arms than the articulated arm 310; when the telescopic boom is shortened, the drag chain device is correspondingly shortened so as to reset the corresponding pipeline, and therefore the use requirement of the tail end of the telescopic boom on the pipeline is met.

The drag chain device comprises: the pipeline comprises a shield 110, a drag chain 120, a pipe body 130 and a pipeline, wherein the shield 110, the drag chain 120 and the pipe body 130 are used for fixing the pipeline. The pipeline extends along the inner space of the shroud 110, the drag chain 120 and the pipe body 130 in sequence, please refer to fig. 1, and the arrow in fig. 1 shows the extending direction of the pipeline.

Wherein, the protecting cover 110 is detachably connected to the side wall of a section of arm 310, the corresponding pipeline is arranged in the protecting cover 110, and the protecting cover 110 is used for protecting the pipeline. By disassembling the shield 110, the pipeline can be conveniently overhauled or maintained, the shield 110 is positioned relatively inwards, unnecessary collision damage can be avoided, and deformation of the shield 110 is avoided. With this structure, the part of the pipeline is directly fixed on the arm 310, that is, the arm 310 bears the gravity of the part of the pipeline, so that the gravity of the part of the pipeline can be prevented from being applied to the drag chain 120, and the service life of the drag chain 120 can be prolonged. By arranging the hydraulic and electric wiring on the boom side through the shield 110, the space can be effectively utilized, and the layout of the structure is more compact.

The protecting cover 110 can effectively protect the pipeline, and further, the protecting cover 110 is of a sectional design, so that the convenience of pipeline maintenance can be improved.

The front end of the drag chain 120 is disposed on the side wall of the arm 310, and the drag chain 120 and the shroud 110 are staggered, for example, the shroud 110 may be disposed above the drag chain 120, and the distance between the drag chain 120 and the side wall is greater than the thickness of the shroud 110. That is, the drag chain 120 does not obscure the shroud 110 so that the drag chain 120 and the shroud 110 do not interfere with each other during use and maintenance. The pipeline is output from the shield 110 and then input into the head end of the drag chain 120, and the tail end of the drag chain 120 is in an active state, so that deformation can be realized under the action of pulling force.

Specifically, since the shroud 110 is fixed to the one arm 310, when the telescopic arm is in the compressed state, the drag chain 120 and the shroud 110 are in a parallel state, and the head end of the drag chain 120 corresponds to the end of the shroud 110, and the end of the drag chain 120 corresponds to the head end of the shroud 110.

The head end of the pipe body 130 is connected to the tail end of the drag chain 120, and the tail end of the pipe body 130 is fixed to the side wall of the end arm 320. When the telescopic arm is in a compressed state, the drag chain 120 and the pipe body 130 are in a parallel state, and the head end of the drag chain 120 corresponds to the tail end of the pipe body 130, and the tail end of the drag chain 120 corresponds to the head end of the pipe body 130. That is, the shroud 110, the tow chain 120, and the pipe body 130 form a three-stage, folded wiring arrangement. When the telescopic arm is deformed from the compressed state to the extended state, the pipe body 130 is driven to move by the end arm 320, the pipe body 130 can move along the axis of the arm 310, and the pipe body 130 can further drive the tail end of the drag chain 120 to move, so that the drag chain 120 is deformed, and the pipe line is supplied for the end arm 320. Wherein the degree of deformation of the drag chain 120 corresponds to the extension length of the telescoping arm.

According to the drag chain device provided by the utility model, the protective cover 110 is detachably connected to the side wall of the one arm 310, and the drag chain 120 and the protective cover 110 are staggered, so that the arrangement space is reasonably distributed, and pipelines in the protective cover 110 can be conveniently overhauled and maintained by detaching the protective cover 110.

It should be noted that, the pipeline between the shroud 110 and the drag chain 120 may be protected by the elbow pipe, so as to avoid friction between the pipeline and the sharp position.

In one embodiment of the present utility model, the shroud 110 includes a protecting plate and two side plates, and the two side plates are respectively connected to two sides of the protecting plate, so as to form a receiving space of the pipeline between the two side plates and the protecting plate. Further, the side plates are provided with coupling holes through which the guard plates are coupled to the side walls of the arm 310, that is, by passing bolts through the coupling holes and coupled to the side walls of the arm 310 by passing through the gaps between the lines.

Further, the width of the side plate is smaller than the width of the guard plate, so that the thickness of the guard 110 can be reduced as much as possible, and the drag chain 120 is convenient to set.

In one embodiment of the present utility model, the pipeline routing may refer to the arrow in fig. 1, and the pipeline is arranged in a sectional routing manner in the shroud 110, so that the pipeline maintenance is effectively facilitated by reasonably distributing the arrangement space.

Fig. 4 is a schematic structural view of a supporting frame 140 of a drag chain device according to the present utility model, please refer to fig. 4. In any of the above embodiments, the drag chain apparatus further comprises: the plurality of support frames 140 are arranged on the side wall of the one section of arm 310 at intervals, and are used for supporting the drag chain 120. This construction avoids the use of an integral fixed support plate 160, reduces the overall weight of the drag chain assembly, and avoids excessive pulling force on the sides of a section of arm 310. Specifically, the supporting frame 140 may be formed by bending, so that the material structure is simple and the installation is convenient.

Further, in an embodiment of the present utility model, the supporting frame 140 includes a main board 141, a first side board 142 and a second side board 143. The main board 141 is connected to a side wall of the arm 310 through a fixed end, and the first side board 142 is connected to a free end of the main board 141, that is, the first side board 142 is connected to the main board 141 opposite to the fixed end. And, the second side plate 143 is extended at the side of the main plate 141, that is, the second side plate 143 is connected to the side of the main plate 141 to form a receiving groove between the second side plate 143 and the first side plate 142.

In the above-described configuration, the first side plate 142 and the second side plate 143 are not opposed to each other, but the staggered arrangement of the first side plate 142 and the second side plate 143 can alternately position the drag chain 120. Further, in one embodiment of the present utility model, both the first side plate 142 and the second side plate 143 are bent in the direction outside the receiving groove. Such a configuration can facilitate providing the tow chain 120 with access to the receiving slot to facilitate placement or use of the tow chain 120. The support 140 is simple to manufacture, the drag chain 120 is convenient to install, and the drag chain 120 can be effectively limited in the left-right direction.

Fig. 5 is a schematic structural view of a fixing frame 150 of the drag chain device according to the present utility model; fig. 6 is a schematic structural view of a support plate 160 of the drag chain device provided by the present utility model; fig. 7 is a schematic structural view of a bracket 170 of a drag chain device according to the present utility model. Please refer to fig. 5 to 7. In one embodiment of the present utility model, the drag chain device further includes a fixing frame 150 and a supporting plate 160 to better fix the head end of the drag chain 120. The fixing frame 150 and the supporting plate 160 are sequentially disposed on a side wall of a section of arm 310, and the supporting plate 160 is disposed between the fixing frame 150 and the supporting frame 140, and the fixing frame 150 is fixedly connected with a head end of the drag chain 120.

In the above structure, the fixing frame 150 is used to fix the head end of the drag chain 120, and the supporting plate 160 is used to support a portion of the length of the head end of the drag chain 120 to enhance the fixing effect. The fixing frame 150 is L-shaped, and has one end fixed to a side of a section of arm 310 and one end connected to the drag chain 120.

Specifically, both ends of the support plate 160 may be connected to the fixing frame 150 and a support bracket 170, respectively, so that it has high stability. Further, the support bracket 170 may be similar to the support bracket 140 described above, except that a through hole is formed in the main board 141 to connect the fixing frame 150.

Fig. 8 is a schematic structural view of a connection bracket of a drag chain device according to the present utility model, please refer to fig. 8. In one embodiment provided by the present utility model, the drag chain device further comprises: and a connection bracket 180. Wherein the connection bracket 180 includes a connection portion and a support portion, forming an L-shape. The connecting portion is connected to a side wall of the end arm 320, and the supporting portion is connected to the bottom of the tube 130. Specifically, the above-mentioned connection portion and supporting portion may be vertically disposed so as to fix the pipe body 130. Further, a rib is further connected before the connection part and the support part for reinforcing the strength of the connection bracket 180.

In one embodiment provided by the present utility model, the telescopic arm further comprises: at least one intermediate link arm 330, the intermediate link arm 330 being disposed between the link arm 310 and the end link arm 320. Further, a fixing member is provided on a sidewall of the at least one middle joint arm 330, and a through hole is provided in the middle of the fixing member, through which the pipe body 130 passes and is movable. The fixing member can play a limiting role in the axial direction of the pipe body 130, and during the moving process of the telescopic arm, the middle section arm 330 and the end section arm 320 move relatively, and the end of the pipe body 130 is fixedly connected with the end section arm 320, so that the pipe body 130 moves relatively to the middle section arm 330 through the fixing member.

In an embodiment of the present utility model, the pipe body 130 is made of aluminum, and the aluminum pipe body 130 has the characteristics of high strength and light weight, which is beneficial to protecting the pipeline and reducing the overall weight of the drag chain device.

Further, the fixing member is made of nylon, so that friction can be reduced, the vertical direction of the pipe body 130 is effectively limited, the movement of the pipe body 130 along the left-right direction is facilitated, and the pipe body 130 is prevented from being worn or scratched. In one embodiment provided by the utility model, the securing member comprises a nylon spacer 211 and a nylon fastener 212. The nylon spacer 211 is disposed on a side wall of the middle arm 330, and two ends of the nylon fastener 212 are respectively connected with the nylon spacer 211, so that a through hole is formed between the nylon fastener 212 and the nylon spacer 211.

Fig. 9 is a schematic structural view of a support bracket 190 of a drag chain device according to the present utility model, please refer to fig. 9. The nylon spacer 211 may be directly disposed between the pipe body 130 and the middle joint arm 330, or may be connected to the middle joint arm 330 through a support bracket 190, and the support bracket 190 for the middle joint arm 330 may have a structure similar to the connection bracket 180, but the support bracket 190 may have a longer support portion to support the pipe body 130 through the nylon spacer 211.

FIG. 10 is a schematic front view of a nylon fastener 212 of a tow chain device according to the present utility model; FIG. 11 is a schematic top view of a nylon fastener 212 of a tow chain device according to the present utility model; fig. 12 is a schematic structural diagram of a nylon spacer 211 of a drag chain device according to the present utility model. Please refer to fig. 10 to 12. The nylon fastener 212 may be formed in a shape of a "table" and provided with a through hole for fixation. The nylon spacer 211 may have a shape corresponding to the nylon fastener 212 and through holes formed therein.

The tube 130 may be a square tube. The support portion is connected to the pipe body 130 by bolts.

Fig. 13 is a schematic structural view of a towing bracket 220 of a drag chain device according to the present utility model, please refer to fig. 13. In an embodiment of the present utility model, the drag chain device further includes a drag bracket 220, the drag chain 120 is connected to the pipe 130 through the drag bracket 220, and the drag bracket 220 includes a limiting plate 221, and the limiting plate 221 is used for limiting the pipeline. The traction bracket 220 is connected with the drag chain 120 and the pipe body 130 through the top plate, and the three limiting plates 221 and the top plate enclose a limiting space, so that the pipeline passes through the limiting space, and further, through holes connected with the pipe body 130 can be further formed in the limiting plates 221, so as to strengthen the connection strength with the pipe body 130.

According to the drag chain device provided by the utility model, the protective cover 110 is detachably connected to the side wall of the one arm 310, and the drag chain 120 and the protective cover 110 are staggered, so that the arrangement space is reasonably distributed, and pipelines in the protective cover 110 can be conveniently overhauled and maintained by detaching the protective cover 110.

Further, a plurality of supporting frames 140 are arranged on the side wall of a section of arm 310 at intervals for supporting the drag chain 120. This construction avoids the use of an integral fixed support plate 160, reduces the overall weight of the drag chain assembly, and avoids excessive pulling force on the sides of a section of arm 310. Specifically, the supporting frame 140 may be formed by bending, so that the material structure is simple and the installation is convenient.

There is provided a work machine comprising a tow chain device of any of the above for arrangement on a telescopic arm of the work machine to provide a pipeline for the telescopic arm.

In a specific embodiment, the work machine may be various types of equipment, such as an overhead working truck, an excavator, a crane, etc., which is not limited in this embodiment. The aerial working vehicle is a special vehicle for installing, maintaining and cleaning aerial equipment, has the advantages of good working performance, high working efficiency, safe operation and the like compared with traditional working modes such as a scaffold, a ladder and the like, is widely applied to industries such as gardens, electric power, street lamps, advertisements and the like along with the rapid development of economy and the continuous and deep development of urban processes in China at present.

According to the working machine provided by the utility model, the protective cover 110 is detachably connected to the side wall of the one arm 310, and the drag chain 120 and the protective cover 110 are staggered, so that the arrangement space is reasonably distributed, and pipelines in the protective cover 110 can be conveniently overhauled and maintained by detaching the protective cover 110.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A drag chain device disposed on a telescopic arm, the telescopic arm comprising a section of arm and a final section of arm, the drag chain device comprising:

the shield is detachably connected to the side wall of one arm;

the head end of the drag chain is arranged on the side wall of the one arm, and the drag chain and the shield are staggered;

the head end of the pipe body is connected with the tail end of the drag chain, the tail end of the pipe body is fixed on the side wall of the tail section arm, and the pipe body can move along the axis of the section arm;

and the pipeline sequentially extends along the shield, the drag chain and the inner space of the pipe body.

2. The drag chain device of claim 1, wherein the shield comprises a guard plate and two side plates, the two side plates are respectively connected to two sides of the guard plate, and the side plates are provided with connecting holes, and the guard plate is connected to the side wall of the arm section through the connecting holes.

3. The drag chain device of claim 1 or 2, further comprising: the supporting frames are arranged on the side wall of the one section of arm at intervals and used for supporting the drag chain.

4. The tow chain device according to claim 3, wherein the support bracket comprises a main plate, a first sideplate, and a second sideplate;

the main board is connected with the side wall of the one section of arm;

the first side plate is connected to the free end of the main plate, and the second side plate is connected to the side portion of the main plate so as to form a containing groove between the second side plate and the first side plate.

5. The drag chain device of claim 3, further comprising a fixing frame and a supporting plate, wherein the fixing frame and the supporting plate are sequentially arranged on the side wall of the one section of arm, the supporting plate is arranged between the fixing frame and the supporting frame, and the fixing frame is fixedly connected with the head end of the drag chain.

6. A drag chain device according to claim 3, further comprising: the connecting support comprises a connecting part and a supporting part, wherein the connecting part is connected to the side wall of the tail arm, and the supporting part is connected to the bottom of the pipe body.

7. The tow chain device according to claim 6, wherein the telescoping arm further comprises: the pipe comprises at least one middle section arm, wherein a fixing piece is arranged on the side wall of the at least one middle section arm, a through hole is formed in the middle of the fixing piece, and the pipe body penetrates through the through hole and can move in the through hole.

8. The drag chain device of claim 7, wherein the fixing member comprises a nylon spacer and a nylon fastener, the nylon spacer being disposed on a side wall of the intermediate knuckle arm, both ends of the nylon fastener being respectively connected with the nylon spacer to form the through hole between the nylon fastener and the nylon spacer.

9. The drag chain device of claim 6, further comprising a drag bracket through which the drag chain is coupled to the pipe body, and the drag bracket includes a limiting plate for limiting the pipeline.

10. A work machine comprising a drag chain arrangement as claimed in any one of claims 1 to 9.