A wrist arm end structure, a wrist arm support device, and a mobile contact network

Abstract

This application discloses a cantilever end structure, a cantilever support device, and a mobile contact network, relating to the field of mobile contact network technology for electrified railways. It includes a first connecting component, a second connecting component, and a support member. The first connecting component connects to the catenary wire; the second connecting component connects the contact wire and the traction member; at least one support member is provided, directly or indirectly connected between the first and second connecting components, and at least one support member can adjust the tilt angle of the contact wire. The cantilever end structure provided by this application can drive the second connecting component to rise and fall through at least one support member, thereby adjusting the tilt angle of the contact wire, maintaining the contact wire horizontally or smoothly transitioning, and thus ensuring the stability of the pantograph's contact with the contact wire.

Description

Technical Field

[0001] This application relates to the field of mobile overhead contact system technology for electrified railways, and more specifically, to a cantilever end structure, a cantilever support device, and a mobile overhead contact system. Background Technology

[0002] In related fields, when the pantograph of an electric locomotive transitions from a fixed contact network to a moving contact network, the lower contact angle of the moving contact network's contact wire means that when the locomotive's pantograph passes at speed, it will directly collide with the contact wire of the moving contact network, causing damage to the pantograph. Conversely, when the pantograph transitions from a moving contact network to a fixed contact network, the higher contact wire of the fixed contact network means that when the locomotive's pantograph passes at speed, it will directly collide with the contact wire of the fixed contact network, also causing damage to the pantograph.

[0003] Therefore, ensuring the stability of the contact between the pantograph and the contact wire of an electric locomotive has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a cantilever end structure to ensure the stability of the pantograph contact with the contact wire of an electric locomotive.

[0005] Another objective of this application is to provide a wrist and arm support device having the aforementioned wrist and arm end structure.

[0006] Another objective of this application is to provide a mobile contact network having the aforementioned wrist arm support device.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A carpal end-effector structure, comprising:

[0009] A first connecting component, the first connecting component being used to connect the load-bearing cable;

[0010] A second connecting assembly is used to connect the contact wire and the traction member;

[0011] A support member, wherein there is at least one support member, which is directly or indirectly connected between the first connecting component and the second connecting component, and at least one of the support members is capable of adjusting the tilt angle of the contact line.

[0012] Optionally, in the above-described wrist arm end structure, the first connecting assembly includes a connecting sleeve and an elastic element. The connecting sleeve is used to be sleeved on the load-bearing cable, the elastic element is located inside the connecting sleeve, and a first pressure plate and a second pressure plate are respectively provided at both ends of the connecting sleeve. A first clamp for clamping the load-bearing cable is provided between the first pressure plate and the elastic element. The first clamp is used to abut against one end of the elastic element and can slide along the connecting sleeve. The second pressure plate is used to abut against the other end of the elastic element.

[0013] Optionally, in the above-described wrist arm end structure, at least one end of the elastic element is provided with an annular pad, and the first clamp is used to abut against the annular pad.

[0014] Optionally, in the above-described wrist arm end structure, the first end of the connecting sleeve is provided with a first pulley, which is used to fit against the upper or lower side of the load-bearing cable. The second end of the connecting sleeve is provided with a second pulley and a third pulley, whereby the second pulley is used to fit against the upper or lower side of the load-bearing cable, and the third pulley is used to fit against the side of the load-bearing cable.

[0015] Optionally, in the above-described wrist arm end structure, the connecting sleeve is an integral structure; or, the connecting sleeve comprises at least two separate sleeves.

[0016] Optionally, in the above-described wrist arm end structure, the support member includes a first support member and a second support member. The first support member is used to connect with the wrist arm, and the second support member is used to drive the second connecting assembly to rise and fall, so as to adjust the tilt angle of the contact line.

[0017] Optionally, in the above-described wrist arm end structure, the second connecting component includes a slide and a moving component that cooperates with the slide. The moving component is used to connect directly or indirectly with the contact line, and the moving component is provided with a second clamp for connecting with the traction member.

[0018] Optionally, in the above-described wrist arm end structure, the contact line terminates on the moving component.

[0019] Optionally, in the above-described wrist arm end structure, the installation height of the traction member is greater than the height of the contact line.

[0020] Optionally, in the above-described wrist arm end structure, the slide is provided with a first hinge seat for connecting with the first support member and a second hinge seat for connecting with the second support member;

[0021] The first support member is hinged to the first hinge seat via a first connector, and the first connector has a connecting cylinder for being sleeved on the first support member;

[0022] The second support member is hinged to the second hinge seat via a second connector, the second connector having a connecting hole for movably engaging with the second support member.

[0023] Optionally, in the above-described wrist arm end structure, the second support member includes an adjusting cylinder and a support rod. The adjusting cylinder is connected to the first connecting assembly, and one end of the support rod is movably engaged with the adjusting cylinder, while the other end of the support rod is movably inserted into the connecting hole of the second connecting member.

[0024] Optionally, in the above-described wrist arm end structure, the slide is provided with a first guide wheel and a second guide wheel for guiding the traction member. The first guide wheel is used to fit against the side of the traction member, and the second guide wheel is used to fit against the upper or lower side of the traction member.

[0025] Optionally, in the above-described wrist arm end structure, the first support member includes a rotating shaft and a pivot seat disposed on the rotating shaft. The pivot seat is used to connect with the wrist arm, and the two ends of the rotating shaft are respectively connected to the first connecting component and the second connecting component.

[0026] A wrist arm support device includes a wrist arm and a wrist arm end structure as described in any of the preceding claims, wherein the wrist arm and the wrist arm end structure are detachably connected.

[0027] A mobile overhead contact line includes a cantilever support device as described above.

[0028] The cantilever end structure provided in this application connects the catenary cable via a first connecting component, the contact wire and the traction member via a second connecting component, and a support member is directly or indirectly connected between the first and second connecting components. At least one support member can adjust the tilt angle of the contact wire. As can be seen from the above example, the cantilever end structure provided in this application can adjust the tilt angle of the contact wire through at least one support member, maintaining the contact wire horizontally or smoothly, thereby ensuring the stability of the pantograph's contact with the contact wire.

[0029] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 An isometric view of the end-arm structure provided in an embodiment of this application;

[0032] Figure 2 This is a front view of the end-of-arm structure provided in an embodiment of this application;

[0033] Figure 3 An isometric view of the first connecting component provided in an embodiment of this application;

[0034] Figure 4 A front view of the first connecting component provided in an embodiment of this application;

[0035] Figure 5 A side view of the first connecting component provided in an embodiment of this application;

[0036] Figure 6 A top view of the first connecting component provided in an embodiment of this application;

[0037] Figure 7 Provided for the embodiments of this application Figure 6 AA section view in the middle;

[0038] Figure 8 An isometric view of the second connecting component provided in an embodiment of this application;

[0039] Figure 9 A front view of the second connecting component provided in an embodiment of this application;

[0040] Figure 10 An isometric view of the first support member provided in an embodiment of this application;

[0041] Figure 11 A front view of the first support member provided in an embodiment of this application;

[0042] Figure 12 Provided for the embodiments of this application Figure 11 BB cross-section view in the middle;

[0043] Figure 13 A side view of the first support member provided in an embodiment of this application;

[0044] Figure 14 A top view of the first support member provided in an embodiment of this application;

[0045] Figure 15 This is a schematic diagram of the structure of the second support member provided in an embodiment of this application;

[0046] Figure 16 This is a schematic diagram of the non-working state of the wrist and arm support device provided in the embodiments of this application;

[0047] Figure 17 This is a schematic diagram of the working position of the wrist and arm support device provided in the embodiments of this application.

[0048] Wherein, 100 is the end structure of the wrist arm, 10 is the first connecting assembly, 11 is the connecting sleeve, 111 is the first pressure plate, 112 is the second pressure plate, 113 is the first clamp, 114 is the first pulley, 115 is the second pulley, 116 is the third pulley, 117 is the connecting plate, 118 is the fixing cylinder, 119 is the stiffening plate, 12 is the elastic element, 121 is the annular pad, 20 is the second connecting assembly, 21 is the slide rail, 211 is the first hinge seat, 212 is the second hinge seat, 213 is the first connector, and 2131 is the connecting... 214 is the second connecting member, 215 is the first guide wheel, 216 is the second guide wheel, 217 is the end cap, 22 is the moving component, 221 is the second clamp, 30 is the first support member, 31 is the rotating shaft, 311 is the steel ring, 312 is the washer, 313 is the sleeve, 314 is the limiting fastener, 315 is the rotating shaft, 32 is the rotating shaft seat, 40 is the second support member, 41 is the adjusting cylinder, 42 is the support rod, 200 is the cantilever support device, 201 is the cantilever, 300 is the load-bearing cable, 400 is the contact wire, and 500 is the traction member. Detailed Implementation

[0049] The core of this application is to provide a cantilever end structure to ensure the stability of the pantograph's contact with the contact wire in an electric locomotive.

[0050] Another key aspect of this application is to provide a wrist and arm support device having the aforementioned wrist and arm end structure.

[0051] Another key aspect of this application is to provide a mobile contact network having the aforementioned wrist arm support device.

[0052] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] In existing technology, when the pantograph of an electric locomotive transitions from a fixed contact network to a moving contact network, the lower contact angle of the moving contact network's contact wire means that when the locomotive's pantograph passes at speed, it will directly impact the contact wire of the moving contact network, causing damage to the pantograph. Conversely, when the pantograph transitions from a moving contact network to a fixed contact network, the higher contact wire of the fixed contact network means that when the locomotive's pantograph passes at speed, it will directly impact the contact wire of the fixed contact network, also causing damage to the pantograph.

[0054] Therefore, such as Figure 1 As shown in the figure, this application discloses a cantilever end structure 100, including a first connecting component 10, a second connecting component 20, and a support member. The tilt angle of the contact line 400 can be adjusted by at least one support member to keep the contact line 400 horizontal or smoothly transitioned, thereby ensuring the stability of the pantograph of the electric locomotive in contact with the contact line 400.

[0055] The following will combine Figures 1 to 17 The wrist-arm end-effector structure 100 disclosed in the embodiments of this application will be explained and described in detail.

[0056] Among them, such as Figure 1 and Figure 2 As shown, the first connecting component 10 can be connected to the catenary cable 300, and the second connecting component 20 can be connected to the contact wire 400 and the traction member 500, so that the contact wire 400 is tightened by the traction member 500. At the same time, at least one support member can be directly or indirectly connected between the first connecting component 10 and the second connecting component 20, that is, one, two, three or more support members can be connected between the first connecting component 10 and the second connecting component 20, and at least one support member can drive the second connecting component 20 to rise and fall. That is, the second connecting component 20 can be raised and lowered by one support member, or by two or more support members, thereby adjusting the tilt angle of the contact wire 400, keeping the contact wire 400 horizontal or smoothly transitioning, and thus ensuring the stability of the pantograph of the electric locomotive in contact with the contact wire 400. It should be noted that the traction component 500 can be made of steel rope, steel strand, etc., and one end of the traction component 500 is connected to the second connecting component 20, while the other end of the traction component 500 can be connected to the fixing mechanism at the end of the mobile contact network, so as to tighten the contact line 400 through the traction component 500 and ensure the stability of the contact between the pantograph of the electric locomotive and the contact line 400.

[0057] In some embodiments, two support members may be used. For ease of understanding, the two support members are defined as the first support member 30 and the second support member 40, respectively. Wherein, as Figure 16 and Figure 17As shown, the first support member 30 can be connected to the wrist arm 201, so that the wrist arm end structure 100 can be rotated by the wrist arm 201 connected to the first support member 30, thereby realizing the switching between the working position state and the non-working position state. The second support member 40 can be connected between the first connecting assembly 10 and the second connecting assembly 20 to improve the overall stability of the wrist arm end structure 100. Furthermore, at least one of the first support member 30 and the second support member 40 can drive the second connecting component 20 to rise and fall. That is, the second support member 40 can drive the second connecting component 20 to rise and fall. At the same time, the first support member 30 can use a guide mechanism to guide the rise and fall of the second connecting component 20. Alternatively, the first support member 30 can drive the rise and fall of the second connecting component 20, and the second support member 40 can use a guide mechanism to guide the rise and fall of the second connecting component 20. Of course, the first support member 30 and the second support member 40 can also drive the rise and fall of the second connecting component 20 simultaneously. This allows for adjustment of the tilt angle of the contact wire 400, maintaining the contact wire 400 horizontally or smoothly, thereby ensuring the stability of the contact between the pantograph of the electric locomotive and the contact wire 400.

[0058] In some embodiments, such as Figure 1 and Figure 2 As shown, the first support member 30 and the second connecting component 20 are hinged together, and the second support member 40 is hinged to the second connecting component 20. At the same time, the second support member 40 can drive the second connecting component 20 to rise and fall, so as to adjust the tilt angle of the second connecting component 20. This can directly drive the contact wire 400 to adjust its angle, keep the contact wire 400 horizontal or smoothly transition, and thus ensure the stability of the pantograph of the electric locomotive in contact with the contact wire 400.

[0059] It should be noted that, as Figure 17 As shown, in the working position, the end structure of the cantilever arm is located above the railway. At this time, the pantograph of the electric locomotive is raised and can draw power from the contact wire 400. The electric locomotive can then drive into or out of the mobile contact network. Figure 16 As shown, in the non-working position, the end structure of the cantilever arm is located on the side of the railway, and the moving contact wire is rotated to the side of the railway. At this time, the space above the railway can be freed up for loading, unloading or maintenance of electric locomotives.

[0060] The wrist arm end structure 100 disclosed in this application embodiment is connected to the load-bearing cable 300 via a first connecting component 10, and the contact line 400 and the traction member 500 via a second connecting component 20. A support member is directly or indirectly connected between the first connecting component 10 and the second connecting component 20. At the same time, at least one support member can drive the second connecting component 20 to rise and fall, so as to adjust the tilt angle of the contact line 400.

[0061] The wrist arm end structure 100 disclosed in this application embodiment can drive the second connecting component 20 to rise and fall through at least one support member, so as to adjust the tilt angle of the contact line 400, keep the contact line 400 horizontal or smoothly transition, and thus ensure the stability of the pantograph of the electric locomotive in contact with the contact line 400.

[0062] In some embodiments, such as Figure 7 As shown, the first connecting assembly 10 may include a connecting sleeve 11 and an elastic element 12. The connecting sleeve 11 is sleeved on the load-bearing cable 300, and the elastic element 12 is located inside the connecting sleeve 11 and sleeved on the outside of the load-bearing cable 300. Simultaneously, a first pressure plate 111 and a second pressure plate 112 are respectively provided at both ends of the connecting sleeve 11. The first pressure plate 111 and the second pressure plate 112 are connected and fixed to both ends of the connecting sleeve 11 by fasteners such as bolts, and the load-bearing cable 300 can pass through the first pressure plate 111 and exit through the second pressure plate 112. Furthermore, a first clamp 113 capable of clamping the load-bearing cable 300 can be provided between the first pressure plate 111 and the elastic element 12. The first clamp 113 can abut against one end of the elastic element 12 and can slide along the connecting sleeve 11, while the second pressure plate 112 abuts against the other end of the elastic element 12. When the catenary cable 300 undergoes thermal expansion and contraction, it can cause the first clamp 113 to slide along the connecting sleeve 11. At this time, the elastic element 12 undergoes elastic deformation, which can compensate for the thermal expansion and contraction deformation of the catenary cable 300 and ensure the stability of the catenary cable 300. It should be noted that the first clamp 113 can be a bidirectional diamond-shaped clamp or the like, so as to be able to clamp the catenary cable 300 while ensuring that the first clamp 113 slides along the inside of the connecting sleeve 11.

[0063] In some embodiments, the connecting sleeve 11 may be an integral structure, that is, the connecting sleeve 11 may be composed of a single steel pipe. Of course, the connecting sleeve 11 may also include at least two separate sleeves, that is, the connecting sleeve 11 may be composed of two, three or more separate sleeves. The connecting sleeve 11 may be composed of multiple separate sleeves divided along the axial direction of the connecting sleeve 11, or it may be composed of multiple arc-shaped separate sleeves divided along the circumferential direction of the connecting sleeve 11, so as to facilitate the installation, construction and adjustment of the connecting sleeve 11.

[0064] In some embodiments, such as Figure 7As shown, an annular pad 121 can be welded and fixed to at least one end of the elastic member 12, that is, an annular pad 121 can be welded and fixed to one end of the elastic member 12, and the first clamp 113 can abut against the annular pad 121. At the same time, the other end of the elastic member 12 can be sleeved on the outside of the second pressure plate member 112. Of course, annular pads 121 can also be welded to both ends of the elastic member 12, so that the second pressure plate member 112 and the first clamp 113 can abut against the annular pads 121 at both ends of the elastic member 12, respectively.

[0065] In some embodiments, such as Figure 3 and Figure 4 As shown, a connecting plate 117 can be welded to the connecting sleeve 11 along the axial direction, and a fixing sleeve 118 can be provided on the side of the connecting plate 117 away from the connecting sleeve 11. The fixing sleeve 118 can be welded and fixed to the connecting plate 117 so that it can be connected to the first support member 30 by bolts or other fasteners. At the same time, the second support member 40 can be connected to the side of the connecting plate 117 away from the connecting sleeve 11 by bolts or other fasteners. In addition, in order to improve the overall strength and stability of the connecting sleeve 11, such as... Figure 3 and Figure 4 As shown, stiffening plates 119 can be provided on both sides of the fixed cylinder 118. The stiffening plates 119 can be welded to the fixed cylinder 118 and the connecting plate 117 respectively, so as to improve the lateral stiffness of the fixed cylinder 118 through the stiffening plates 119, and at the same time improve the overall strength and stability of the connecting sleeve 11.

[0066] In some embodiments, such as Figure 3 and Figure 4 As shown, a first pulley 114 can be provided at the first end of the connecting sleeve 11, and the first pulley 114 can be in contact with the lower side of the catenary 300. Simultaneously, a second pulley 115 and a third pulley 116 can be provided at the second end of the connecting sleeve 11. The second pulley 115 can be in contact with the lower side of the catenary 300, and the third pulley 116 can be in contact with the side of the catenary 300. Thus, the catenary 300 can be limited and its movement guided by the first pulley 114, second pulley 115, and third pulley 116, ensuring the stability of the catenary 300. Alternatively, the first pulley 114 and second pulley 115 can also be in contact with the upper side of the catenary 300 to provide guidance and reduce movement resistance.

[0067] In some embodiments, such as Figure 8 and Figure 9As shown, the second connecting assembly 20 may include a slide rail 21 and a moving assembly 22 that cooperates with the slide rail 21. The moving assembly 22 may be a roller assembly capable of moving along the slide rail 21 to reduce friction during movement; alternatively, it may be a slider assembly that moves along the slide rail 21. The moving assembly 22 may be directly or indirectly connected to the contact line 400. Specifically, the moving assembly 22 may be connected to the contact line 400 via a positioning clamp, and the moving assembly 22 is provided with a second clamp 221 for connecting the traction member 500. The second clamp 221 may be connected to the moving assembly 22 via bolts or other fasteners, thereby connecting the traction member 500 to the moving assembly 22 and tightening the contact line 400 via the traction member 500. It should be noted that the second clamp 221 may be a wedge-shaped clamp to achieve the connection and fixation of the traction member 500.

[0068] In some embodiments, such as Figure 8 and Figure 9 As shown, the contact wire 400 can be terminated and returned on the moving component 22, that is, the contact wire 400 can be fixed by bending on the moving component 22 so that the contact wire 400 is cut off at the position of the moving component 22, thereby preventing the contact wire 400, especially the single-core contact wire, from being repeatedly bent and broken during the movement.

[0069] In some embodiments, such as Figure 8 and Figure 9 As shown, the installation height of the traction component 500 can be greater than the height of the contact wire 400, thereby preventing the pantograph of the electric locomotive from contacting the traction component 500 when it passes by.

[0070] In some embodiments, such as Figure 8 and Figure 9 As shown, for ease of understanding, the two ends of the slide 21 are defined as the first end and the second end, respectively. The first end of the slide 21 is the end furthest from the fixed mechanism of the mobile contact network, and the second end of the slide 21 is the end closest to the fixed mechanism of the mobile contact network. The moving component 22 is positioned closer to the first end of the slide 21 than the second end, and the second clamp 221 is also positioned closer to the second end of the slide 21 than the first end. Simultaneously, a first guide wheel 215 and a second guide wheel 216 can be provided at the second end of the slide 21 to guide the traction member 500. The first guide wheel 215 can fit against the side of the traction member 500, and the second guide wheel 216 can fit against the upper or lower side of the traction member 500, thereby limiting the traction member 500 horizontally and vertically, and guiding the traction member 500 when the moving component 22 moves along the slide 21, reducing movement resistance. In addition, an end cap 217 may be provided at the first end of the slide 21 to limit the movement path of the moving component 22 and prevent the rollers of the moving component 22 from sliding out of the slide 21.

[0071] In some embodiments, such as Figure 8 and Figure 9 As shown, the side of the slide 21 opposite to the moving assembly 22 may be provided with a first hinge seat 211 that can be connected to the first support member 30 and a second hinge seat 212 that can be connected to the second support member 40. Wherein, as... Figure 8 As shown, the first support member 30 can be connected to the first hinge seat 211 via the first connector 213, and the first connector 213 can rotate around the first hinge seat 211. Simultaneously, the first connector 213 has a connecting sleeve 2131 that can be fitted onto the first support member 30, so that the first support member 30 can be connected to the connecting sleeve 2131 of the first connector 213 via bolts or other fasteners. Figure 15 As shown, the second support member 40 can be connected to the second hinge seat 212 via the second connector 214, and the second connector 214 can rotate around the second hinge seat 212. At the same time, the second connector 214 has a connecting hole that can be movably engaged with the second support member 40, so that the second support member 40 can rotate circumferentially along the connecting hole. This enables the second support member 40 to drive the second connecting assembly 20 to rise and fall, thereby adjusting the tilt angle of the second connecting assembly 20, and in turn driving the contact line 400 to rise and fall, keeping the contact line 400 horizontal or smoothly transitioning, and ensuring the stability of the pantograph of the electric locomotive in contact with the contact line 400.

[0072] In some embodiments, such as Figure 15 As shown, the second support member 40 may include an adjusting cylinder 41 and a support rod 42. The adjusting cylinder 41 can be connected to the connecting plate 117 of the first connecting assembly 10 by fasteners such as bolts. One end of the support rod 42 is movably engaged with the adjusting cylinder 41, and the other end of the support rod 42 is movably inserted into the connecting hole of the second connecting member 214 and can be fixed by limiting members such as snap rings, thereby achieving axial limiting of the support rod 42. The support rod 42 can move along the adjusting cylinder 41 to drive the second connecting assembly 20 to rise or fall, thereby adjusting the tilt angle of the second connecting assembly 20, and thus driving the contact line 400 to rise and fall, keeping the contact line 400 horizontal or smoothly transitioning, and ensuring the stability of the pantograph of the electric locomotive in contact with the contact line 400.

[0073] In some embodiments, one end of the support rod 42 and the adjusting cylinder 41 can be threaded together to enable the second connecting component 20 to be raised or lowered by rotating the support rod 42, thereby adjusting the tilt angle of the second connecting component 20, and thus driving the contact line 400 to be raised or lowered, keeping the contact line 400 horizontal or smoothly transitioning, and ensuring the stability of the pantograph of the electric locomotive in contact with the contact line 400.

[0074] In some embodiments, one end of the support rod 42 and the adjusting cylinder 41 can also be engaged by a pin and a pin hole. That is, one end of the support rod 42 and one end of the adjusting cylinder 41 can be provided with a plurality of first pin holes spaced apart along the moving direction of the support rod 42, and the other end can be provided with one or more second pin holes that engage with each of the first pin holes. When the support rod 42 moves into position along the adjusting cylinder 41, the pin can be passed through the first pin hole and the second pin hole to achieve locking and fixation between the support rod 42 and the adjusting cylinder 41.

[0075] In some embodiments, such as Figures 10 to 14 As shown, the first support member 30 may include a rotating shaft 31 and a rotating shaft seat 32 disposed on the rotating shaft 31. Wherein, as... Figure 16 As shown, the pivot seat 32 can be connected to the wrist arm 201 by fasteners such as bolts, and one end of the pivot shaft 31 can be connected to the fixed cylinder 118 of the first connecting assembly 10 by fasteners such as bolts, and the other end of the pivot shaft 31 can be connected to the connecting cylinder 2131 of the first connecting member 213 by fasteners such as bolts.

[0076] In some embodiments, such as Figure 12 As shown, the rotating shaft 31 may include a rotating shaft 315 and a sleeve 313. A stop is provided at one end of the rotating shaft 315, and the sleeve 313 can be fitted onto the outside of the rotating shaft 315 and can rotate relative to the rotating shaft 315. The rotating shaft seat 32 can be connected to the sleeve 313. One end of the sleeve 313 abuts against the stop, and the other end of the sleeve 313 is locked and fixed by a limiting fastener 314. A steel ring 311 and a washer 312 can be sequentially provided between the stop and the sleeve 313, and a washer 312 can be provided between the limiting fastener 314 and the sleeve 313 to ensure the reliability of the connection between the sleeve 313 and the rotating shaft 315. It should be noted that the limiting fastener 314 may be a locking nut and a toothed washer.

[0077] like Figure 16 and Figure 17 As shown in the illustration, this application also discloses a wrist arm support device 200, which may include a wrist arm 201 and a wrist arm end structure 100 as disclosed in the above embodiments. Therefore, the wrist arm end structure 100 has all the technical effects of the above-described wrist arm end structure 100, which will not be repeated here. The wrist arm 201 can be detachably connected to the wrist arm end structure via fasteners such as bolts, thereby driving the wrist arm end structure 100 to rotate, switching between a working position and a non-working position.

[0078] This application also discloses a mobile contact network, including a wrist arm support device located at both ends of the mobile contact network. The wrist arm support device is the wrist arm support device 200 disclosed in the above embodiment, and therefore has all the technical effects of the above-mentioned wrist arm support device 200. It will not be described again here.

[0079] The terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather not listed.

[0080] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wrist arm end structure, characterized by, include: First connecting component (10), the first connecting component (10) is used to connect the catenary (300); The second connecting component (20) is used to connect the contact wire (400) and the traction member (500). The support member is at least one and is directly or indirectly connected between the first connecting component (10) and the second connecting component (20), and at least one of the support members is capable of adjusting the tilt angle of the contact line (400).

2. A boom tip structure according to claim 1, characterised in that The first connecting assembly (10) includes a connecting sleeve (11) and an elastic element (12). The connecting sleeve (11) is used to be sleeved on the load-bearing cable (300). The elastic element (12) is located inside the connecting sleeve (11). A first pressure plate (111) and a second pressure plate (112) are respectively provided at both ends of the connecting sleeve (11). A first clamp (113) for clamping the load-bearing cable (300) is provided between the first pressure plate (111) and the elastic element (12). The first clamp (113) is used to abut against one end of the elastic element (12), and the first clamp (113) can slide along the connecting sleeve (11). The second pressure plate (112) is used to abut against the other end of the elastic element (12).

3. A gooseneck end construction according to claim 2, characterised in that At least one end of the elastic member (12) is provided with an annular pad (121), and the first clamp (113) is used to abut against the annular pad (121).

4. A gooseneck end construction according to claim 2, wherein, The first end of the connecting sleeve (11) is provided with a first pulley (114), which is used to fit against the upper or lower side of the load-bearing cable (300). The second end of the connecting sleeve (11) is provided with a second pulley (115) and a third pulley (116), which are used to fit against the upper or lower side of the load-bearing cable (300) and the third pulley (116) is used to fit against the side of the load-bearing cable (300).

5. A gooseneck end construction according to claim 2 wherein, The connecting sleeve (11) is an integral structure; or, the connecting sleeve (11) includes at least two separate sleeves.

6. The gooseneck end construction of claim 1, wherein, The support includes a first support (30) and a second support (40). The first support (30) is used to connect with the wrist arm (201), and the second support (40) is used to drive the second connecting assembly (20) to rise and fall, so as to adjust the tilt angle of the contact line (400).

7. A boom end structure according to claim 6, characterised in that, The second connecting component (20) includes a slide (21) and a moving component (22) that cooperates with the slide (21). The moving component (22) is used to connect directly or indirectly with the contact line (400), and the moving component (22) is provided with a second clamp (221) for connecting with the traction member (500).

8. A boom tip structure according to claim 7, characterised in that, The contact line (400) returns to its terminal position on the moving component (22).

9. A boom end structure according to claim 8, characterised in that, The installation height of the traction component (500) is greater than the height of the contact wire (400).

10. A boom tip structure according to claim 7, wherein The slide (21) is provided with a first hinge seat (211) for connecting with the first support member (30) and a second hinge seat (212) for connecting with the second support member (40). The first support member (30) is hinged to the first hinge seat (211) via the first connector (213), and the first connector (213) has a connecting sleeve (2131) for sleeved on the first support member (30). The second support member (40) is hinged to the second hinge seat (212) via a second connector (214), the second connector (214) having a connection hole for movably engaging with the second support member (40).

11. A boom end structure according to claim 10, wherein The second support member (40) includes an adjusting cylinder (41) and a support rod (42). The adjusting cylinder (41) is connected to the first connecting assembly (10), and one end of the support rod (42) is movably engaged with the adjusting cylinder (41). The other end of the support rod (42) is movably inserted into the connecting hole of the second connecting member (214).

12. A gooseneck end construction according to claim 10 wherein, The slide (21) is provided with a first guide wheel (215) and a second guide wheel (216) for guiding the traction member (500). The first guide wheel (215) is used to fit against the side of the traction member (500), and the second guide wheel (216) is used to fit against the upper or lower side of the traction member (500).

13. A gooseneck end construction according to claim 6 wherein, The first support member (30) includes a rotating shaft (31) and a pivot seat (32) disposed on the rotating shaft (31). The pivot seat (32) is used to connect with the wrist arm (201). The two ends of the rotating shaft (31) are respectively connected to the first connecting component (10) and the second connecting component (20).

14. A cantilever support arrangement characterised by It includes a wrist arm (201) and a wrist arm end structure (100) as described in any one of claims 1 to 13, wherein the wrist arm (201) and the wrist arm end structure (100) are detachably connected.

15. A mobile catenary, characterized in that Includes the wrist and arm support device (200) as described in claim 14.

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