A bridging device

Abstract

The application relates to a cross-connection device for cross-connecting two overhead cables to short-circuit electrical equipment between the two overhead cables, the cross-connection device comprising a wire and a clamping mechanism, two ends of the wire being used for conducting the two overhead cables respectively, and at least one end of the wire being fixed to the overhead cable conducting the wire through the clamping mechanism; the clamping mechanism comprising a first clamping arm, a second clamping arm, a holding piece and a transmission piece, the first clamping arm being rotationally connected with the second clamping arm for clamping the overhead cable, the holding piece being movably connected with the second clamping arm, the holding piece being transmissionally connected with the first clamping arm through the transmission piece, and the holding piece being used for moving relative to the second clamping arm to drive the first clamping arm to rotate towards the second clamping arm, so as to stably clamp the overhead cable. The clamping mechanism of the cross-connection device provided by the application clamps the overhead cable through the holding piece driving the first clamping arm and the second clamping arm. The clamping mechanism can quickly clamp or release the overhead cable, so as to realize quick disassembly and assembly of the cross-connection device and the overhead cable.

Description

Technical Field

[0001] This application relates to the field of jumper devices, and more particularly to a jumper device. Background Technology

[0002] Electrical equipment requires power disconnection during maintenance, but the maintenance of one piece of equipment should not affect the normal operation of other equipment. Jumper devices are used to short-connect the cables at both ends of the electrical equipment to ensure the normal operation of other equipment. However, some cables are overhead at a considerable height, making the installation of existing jumper devices complex and hindering rapid maintenance. Utility Model Content

[0003] In view of the aforementioned technical problems, the purpose of this application is to provide a jumper device that enables quick connection and disconnection with overhead cables, specifically including the following technical solutions: This application provides a jumper device for bridging two overhead cables to short-circuit electrical equipment between them. The jumper device includes a conductor and a clamping mechanism. The two ends of the conductor are used to conduct electricity to the two overhead cables respectively. At least one end of the conductor is fixed to the overhead cable it is connected to through the clamping mechanism. The clamping mechanism includes a first clamping arm, a second clamping arm, a holding member, and a transmission member. The first clamping arm is rotatably connected to the second clamping arm for clamping the overhead cable. The holding member is movably connected to the second clamping arm and is driven to the first clamping arm through the transmission member. The holding member moves relative to the second clamping arm to drive the first clamping arm to rotate toward the second clamping arm, thereby smoothly clamping the overhead cable.

[0004] The jumper device provided in this application connects two overhead cables at both ends of its conductor, thereby short-circuiting the electrical equipment between the two overhead cables. This allows for the maintenance or replacement of the electrical equipment between the two overhead cables without affecting the normal operation of other electrical equipment.

[0005] The jumper device provided in this application has at least one end of the conductor clamped by a first clamping arm and a second clamping arm to fix the conductor to the overhead cable. A retaining member is movably connected to the second clamping arm. The retaining member is used to drive the first clamping arm to rotate relative to the second clamping arm via a transmission member, enabling the first and second clamping arms to quickly clamp or release the overhead cable, thereby achieving rapid assembly and disassembly of the jumper device from the overhead cable.

[0006] In one embodiment, one end of the retaining member is rotatably connected to the middle section of the second clamping arm, and the other end is drively connected to the transmission member, so as to drive the first clamping arm to rotate relative to the second clamping arm through the transmission member, thereby clamping or releasing the overhead cable.

[0007] In this embodiment, one end of the retaining member is rotatably connected to the second clamping arm, and the other end is drive-connected to the transmission member. During the rotation of the retaining member relative to the second clamping arm, the retaining member can drive the transmission member to move, thereby causing the first clamping arm to rotate toward or away from the second clamping arm, so as to realize the clamping or releasing of the overhead cable by the first clamping arm and the second clamping arm.

[0008] In one embodiment, one end of the first clamping arm is rotatably connected to the second clamping arm, and the middle section of the first clamping arm is drive-connected to the end of the transmission member away from the retaining member, wherein the distance between the end of the transmission member away from the retaining member and the rotation axis of the first and second clamping arms is less than the distance between the overhead cable and the rotation axis of the first and second clamping arms.

[0009] In this embodiment, the two ends of the transmission member are respectively connected to the holding member and the first clamping arm, so that during the movement of the holding member relative to the second clamping arm, the holding member can drive the first clamping arm to rotate relative to the second clamping arm through the transmission member, thereby clamping or releasing the overhead cable. One end of the first clamping arm is rotatably connected to the second clamping arm. The middle section of the first clamping arm is connected to the transmission member. The end of the transmission member away from the holding member is closer to the pivot of the first and second clamping arms than the overhead cable, avoiding the overhead cable being too close to the pivot of the first and second clamping arms, preventing the overhead cable from interfering with the movement of the transmission member, and ensuring the normal operation of the clamping mechanism.

[0010] In one embodiment, when the first clamping arm and the second clamping arm clamp the overhead cable, the distance between the shaft of the holding member and the end of the transmission member away from the holding member is less than the length of the transmission member.

[0011] In this embodiment, when the holding member drives the first clamping arm and the second clamping arm to clamp the overhead cable, the end of the transmission member that is connected to the holding member is located on the side of the rotating shaft of the holding member and the second clamping arm away from the first clamping arm. This allows the transmission member to have sufficient length to ensure that the first clamping arm and the second clamping arm apply greater pressure to the overhead cable, thereby achieving the effect of the clamping mechanism smoothly clamping the overhead cable.

[0012] In one embodiment, the transmission component includes a spring, with its two ends respectively connected to a retaining member and a first clamping arm. The retaining member is used to move relative to the second clamping arm to generate a spring force, thereby driving the first clamping arm to rotate toward the second clamping arm.

[0013] In this embodiment, the transmission component includes a spring, which is elastically connected to both the retaining member and the first clamping arm. The spring generates elastic force during the movement of the retaining member relative to the second clamping arm, thereby causing the first clamping arm to rotate towards the second clamping arm. The elastic force generated by the spring's own deformation can also further increase the pressure of the first clamping arm on the overhead cable, enabling the clamping mechanism to smoothly clamp the overhead cable.

[0014] In addition, during the process of the overhead cable extending into the clamp formed by the first clamp and the second clamp, the spring can also change the circumferential distance between the first clamp and the second clamp along the axis of rotation of the first clamp and the second clamp through its own elastic deformation, so as to avoid scratching the overhead cable if the distance is too small.

[0015] In one embodiment, the clamping mechanism includes a limiting member that is movably connected to a second clamping arm. The limiting member is used to restrict the movement of the holding member in order to maintain the state in which the first clamping arm and the second clamping arm clamp the overhead cable.

[0016] In this embodiment, the limiting member cooperates with the retaining member to restrict the movement of the retaining member relative to the second clamping arm, thereby maintaining the position of the first clamping arm relative to the second clamping arm. When the first and second clamping arms clamp the overhead cable, the limiting member can restrict the movement of the retaining member relative to the second clamping arm to limit the rotation of the first clamping arm relative to the second clamping arm, thereby maintaining the state of the first and second clamping arms clamping the overhead cable and ensuring the long-term fixation of the conductor and the overhead cable.

[0017] In one embodiment, the limiting member is rotatably connected to the second clamping arm, and the pivot of the limiting member and the second clamping arm is located on the side of the retaining member opposite to the pivot of the first clamping arm and the second clamping arm, wherein: one of the retaining member and the limiting member includes one of a pair of cooperating latches and latches, and the other includes the other of a pair of cooperating latches and latches, the latches being used to receive the latches to restrict the movement of the retaining member.

[0018] In this embodiment, the pivot of the limiting member and the second clamping arm is further away from the pivot of the first clamping arm and the second clamping arm than the pivot of the holding member, so that the rotation of the limiting member relative to the second clamping arm is relatively independent of the rotation of the first clamping arm relative to the second clamping arm, thus avoiding the rotation of the limiting member relative to the second clamping arm from affecting the clamping of the overhead cable by the first clamping arm and the second clamping arm.

[0019] The limiting member and the retaining member cooperate with each other through a pair of locking tongues and locking jaws. The locking jaws are used to receive the locking tongues to restrict the movement of the retaining member relative to the second clamping arm, thereby maintaining the state in which the first clamping arm and the second clamping arm hold the overhead cable.

[0020] In one embodiment, the clamping mechanism includes a limiting pin that is slidably connected to a second clamping arm. The direction of sliding of the limiting pin is parallel to the axis of rotation of the limiting member and the second clamping arm. The limiting pin is used to abut against the limiting member to maintain the state of the lock receiving the locking tongue.

[0021] In this embodiment, the limiting pin is used to slide axially along the rotation axis of the limiting member and the second clamping arm. Along the rotation axis of the limiting member and the second clamping arm, the limiting pin at least partially overlaps with the limiting member. The limiting pin is used to abut against the limiting member to restrict the limiting member from rotating in a direction away from the holding member, thereby maintaining the state of the lock jaw receiving the locking tongue and preventing accidental operation of the limiting member from causing the first and second clamping arms to release the overhead cable.

[0022] In one embodiment, the limiting member includes a ring, which is fixed to the end of the limiting member away from the second clamping arm. The ring is used to move relative to the second clamping arm under the action of the hook end of the operating lever, thereby releasing the limiting member from restricting the holding member.

[0023] In this embodiment, the ring facilitates interaction with the hook end on the operating lever to release the restriction of the holding member by the limiting member relative to the second clamping arm. The overhead cable is relatively high, and the ring at the end of the limiting member is easily visible to the operator, and can also be moved by the hook end of the operating lever to release the restriction on the holding member.

[0024] In one embodiment, one of the opposing side surfaces of the first clamping arm and the second clamping arm includes an inclined surface, and the circumferential distance between the inclined surface and the other opposing side surface of the first clamping arm and the second clamping arm gradually increases along the axis of rotation of the first clamping arm and the second clamping arm in a direction away from the axis of rotation of the first clamping arm and the second clamping arm.

[0025] In this embodiment, the inclined surface is used to guide the overhead cable to extend between the first clamping arm and the second clamping arm, which makes it easier for the operator to align the clamping mouth formed by the first clamping arm and the second clamping arm with the overhead cable, thereby increasing the installation speed of the clamping mechanism and the overhead cable and facilitating the rapid installation of the bridging device and the overhead cable. Attached Figure Description

[0026] Figure 1 This is a partial structural diagram of a jumper device provided in one embodiment of the present application, fixed to an overhead cable. Figure 2 This is a partial structural diagram of the bridging device and operating lever provided in one embodiment of this application; Figure 3 This is a partial structural schematic diagram of the bridging device provided in one embodiment of this application; Figure 4 This is a partially exploded structural diagram of a bridging device provided in one embodiment of this application; Figure 5 This is a schematic diagram of the clamping mechanism provided in one embodiment of this application; Figure 6 This is a schematic diagram of another structure of the clamping mechanism provided in one embodiment of this application; Figure 7 This is a partially exploded structural diagram of the clamping mechanism provided in one embodiment of this application; Figure 8 This is a schematic diagram of another structure of the clamping mechanism provided in one embodiment of this application; Figure 9This is a schematic diagram of the clamping mechanism for clamping overhead cables provided in one embodiment of this application; Figure 10 This is a cross-sectional structural schematic diagram of the clamping mechanism provided in one embodiment of this application; Figure 11 This is a schematic diagram of another part of the structure of the bridging device and operating lever provided in one embodiment of this application; Figure 12 This is a partial structural diagram of a clamping mechanism provided in one embodiment of this application; Figure 13 This is a schematic diagram of another part of the structure of the clamping mechanism provided in one embodiment of this application; Figure 14 This is a schematic diagram of another partial structure of the bridging device and operating lever provided in one embodiment of this application. Detailed Implementation

[0027] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0028] The following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments in which this application can be implemented. The component designations used herein, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages). Directional terms used in this application, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "side," etc., are merely for reference to the accompanying illustrations. Therefore, the use of directional terms is for better and clearer explanation and understanding of this application, and does not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application.

[0029] This application provides a jumper device for bridging two overhead cables to short-circuit electrical equipment between them. The jumper device includes a conductor and a clamping mechanism. The two ends of the conductor are used to conduct electricity to the two overhead cables respectively. At least one end of the conductor is fixed to the overhead cable it is connected to through the clamping mechanism. The clamping mechanism includes a first clamping arm, a second clamping arm, a holding member, and a transmission member. The first clamping arm and the second clamping arm are rotatably connected for clamping the overhead cable. The holding member is movably connected to the second clamping arm and is driven to the first clamping arm through the transmission member. The holding member moves relative to the second clamping arm to drive the first clamping arm to rotate toward the second clamping arm, thereby smoothly clamping the overhead cable.

[0030] Please see Figures 1-4 ,in Figure 1 This illustration shows a partial structural diagram of the jumper device 100 provided in one embodiment of the present application, which is fixed to the overhead cable 201. Figure 2 This illustration shows a partial structural diagram of the bridging device 100 and the operating lever 202 provided in one embodiment of this application; Figure 3 This illustration shows a partial structural diagram of the bridging device 100 provided in one embodiment of this application; Figure 4 This illustration shows a partially exploded structural diagram of the bridging device 100 provided in one embodiment of this application.

[0031] The jumper device 100 provided in this application embodiment includes a conductor and a clamping mechanism 10. The two ends of the conductor are used to fix and conduct two overhead cables 201 respectively, so as to short-circuit the electrical equipment between the two overhead cables 201. The electrical equipment short-circuited by the conductor is not energized, allowing for maintenance or replacement without affecting the normal operation of other electrical equipment, thus enabling the operator to perform live work.

[0032] At least one end of the conductor of the jumper device 100 provided in this application embodiment is fixed to the overhead cable 201 that is in communication with it by a clamping mechanism 10.

[0033] In one embodiment, the bridging device 100 includes an arc suppression switch 20. At least one end of the conductor is fixedly connected to the clamping mechanism 10 via the arc suppression switch 20 to control the connection and disconnection of the conductor and the overhead cable 201.

[0034] In one embodiment, such as Figures 1-4 As shown, the arc suppression switch 20 includes a housing 21, a first conductive element 22, and a second conductive element 23. The housing 21 is rod-shaped. Along the length of the housing 21, one end of the housing 21 is fixed to the overhead cable 201 by a clamping mechanism 10. The other end of the housing 21 is fixedly connected to one end of a conductor. The first conductive element 22 and the second conductive element 23 extend towards each other along the length of the housing 21 and extend into the inner cavity of the housing 21 from their respective ends.

[0035] In the above embodiment, the first conductive element 22 is fixedly connected to the housing 21. The first conductive element 22 is also used to fix and conduct electricity with the clamping mechanism 10. The second conductive element 23 is used to slide and connect with the housing 21. The sliding direction of the second conductive element 23 relative to the housing 21 is parallel to the length direction of the housing 21. The second conductive element 23 is also used to fix and conduct electricity with one end of the wire. The second conductive element 23 is used to slide toward and contact the first conductive element 22, so that the wire conducts electricity with the clamping mechanism 10. The second conductive element 23 is used to slide in a direction away from the first conductive element 22 and spaced apart from the first conductive element 22, so that the wire is disconnected from the clamping mechanism 10.

[0036] In one embodiment, the housing 21, the first conductive element 22, and the second conductive element 23 form a piston structure. The housing 21 includes a through hole for communicating with the inner cavity of the piston. As the second conductive element 23 slides away from the first conductive element 22, the volume of the piston's inner cavity increases, and external air enters the piston's inner cavity through the through hole. The air entering through the through hole is used to extinguish the electric arc generated when the first conductive element 22 and the second conductive element 23 separate.

[0037] In one embodiment, such as Figures 1-4 As shown, when the clamping mechanism 10 clamps the overhead cable 201, the second conductive element 23 is located below the first conductive element 22 in the vertical direction. For overhead cables 201 with a relatively high height, the lower height of the second conductive element 23 facilitates the operator's fixed connection between the second conductive element 23 and the wire. The lower height of the second conductive element 23 also facilitates the control of its position relative to the housing 21, thereby enabling the first conductive element 22 and the second conductive element 23 to be switched on or off.

[0038] In one embodiment, such as Figure 2 As shown, the arc suppression switch 20 includes a fixing ring 24. The fixing ring 24 is used to fix it to the operating lever 202. The operator can raise the height of the arc suppression switch 20 via the operating lever 202, so that the clamping mechanism 10 can clamp the overhead cable 201 at a higher height.

[0039] Please see Figures 5-9 ,in Figure 5 This illustration shows a structural diagram of the clamping mechanism 10 provided in one embodiment of the present application; Figure 6 This illustrates another structural diagram of the clamping mechanism 10 provided in one embodiment of this application; Figure 7 This illustration shows a partially exploded view of the clamping mechanism 10 provided in one embodiment of the present application. Figure 8 This illustrates another structural diagram of the clamping mechanism 10 provided in one embodiment of this application; Figure 9This illustration shows a structural diagram of the clamping mechanism 10 provided in one embodiment of the present application clamping an overhead cable 201.

[0040] like Figures 5-7 As shown, the clamping mechanism 10 of the jumper device 100 provided in this application includes a first clamping arm 11, a second clamping arm 12, a retaining member 13, and a transmission member 14. The first clamping arm 11 is rotatably connected to the second clamping arm 12 for clamping the overhead cable 201. The retaining member 13 is movably connected to the second clamping arm 12. The retaining member 13 is used for transmission connection with the first clamping arm 11 via the transmission member 14. The retaining member 13 is used to move relative to the second clamping arm 12 to drive the first clamping arm 11 to rotate toward the second clamping arm 12, thereby smoothly clamping the overhead cable 201.

[0041] In one embodiment, such as Figures 5-7 As shown, one end of the second clamping arm 12 is rotatably connected to one end of the first clamping arm 11. For ease of description, in subsequent embodiments, the first clamping arm 11 is defined as including a first end 111 and a second end 112. The second clamping arm 12 includes a third end 121 and a fourth end 122. That is, the third end 121 of the second clamping arm 12 is rotatably connected to the first end 111 of the first clamping arm 11. The middle section of the second clamping arm 12 is rotatably connected to the retaining member 13. Along the length direction of the second clamping arm 12, the rotation axes of the first clamping arm 11 and the second clamping arm 12 are spaced apart from the rotation axes of the retaining member 13 and the second clamping arm 12. The two ends of the transmission member 14 are respectively driven to the middle section of the first clamping arm 11 and the retaining member 13. The retaining member 13 is used to rotate relative to the second clamping arm 12, and through the transmission member 14, drives the first clamping arm 11 to rotate in a direction toward the second clamping arm 12 or in a direction away from the second clamping arm 12, thereby clamping or releasing the overhead cable 201.

[0042] In one embodiment, such as Figure 8 and Figure 9 As shown, the transmission component 14 includes a spring. When the clamping mechanism 10 is not clamping the overhead cable 201, the first clamping arm 11 and the second clamping arm 12 abut against each other radially along the rotation axis of the first clamping arm 11 and the second clamping arm 12. The clamping jaws of the first clamping arm 11 and the second clamping arm 12 face downwards in the vertical direction and are used to align with the overhead cable 201. The retaining member 13 is stationary relative to the second clamping arm 12. As the clamping mechanism 10 moves downwards in the vertical direction, the overhead cable 201 enters the clamping jaws of the first clamping arm 11 and the second clamping arm 12, causing the first clamping arm 11 and the second clamping arm 12 to be circumferentially spaced along the rotation axis of the first clamping arm 11 and the second clamping arm 12, causing the spring to deform and generate elastic force.

[0043] That is, even if the retaining member 13 is stationary relative to the second clamping arm 12, the overhead cable portion can be accommodated in the clamping jaws of the first clamping arm 11 and the second clamping arm 12 by driving the clamping mechanism 10 to move downward in the vertical direction, thereby reducing the steps required to clamp the overhead cable 201 and facilitating the rapid installation of the jumper device 100.

[0044] Furthermore, the weight of the bridging device 100 itself ensures that the overhead cable 201 is always located within the clamping jaws of the first clamping arm 11 and the second clamping arm 12. The elastic force generated by the spring deformation also ensures that the first clamping arm 11 and the second clamping arm 12 stably clamp the overhead cable 201.

[0045] The jumper device 100 provided in this embodiment connects two overhead cables 201 at both ends of its conductor, thereby short-circuiting the electrical equipment between the two overhead cables 201. This allows for the maintenance or replacement of the electrical equipment between the two overhead cables 201 without affecting the normal operation of other electrical equipment.

[0046] At least one end of the conductor of the jumper device 100 provided in this application embodiment is clamped to the overhead cable 201 by a first clamping arm 11 and a second clamping arm 12, so that the conductor is fixedly connected to the overhead cable 201. A retaining member 13 is movably connected to the second clamping arm 12. The retaining member 13 is used to drive the first clamping arm 11 to rotate relative to the second clamping arm 12 via a transmission member 14, so that the first clamping arm 11 and the second clamping arm 12 can quickly clamp or quickly release the overhead cable 201, thereby realizing the rapid assembly and disassembly of the jumper device 100 and the overhead cable 201.

[0047] Please see Figure 10 This is a schematic cross-sectional view of the clamping mechanism 10 provided in one embodiment of the present application.

[0048] In one embodiment, one end of the retaining member 13 is rotatably connected to the middle section of the second clamping arm 12, and the other end is drively connected to the transmission member 14, so as to drive the first clamping arm 11 to rotate relative to the second clamping arm 12 through the transmission member 14, thereby clamping or releasing the overhead cable 201.

[0049] In one embodiment, such as Figure 10 As shown, one end of the retaining member 13 is rotatably connected to the second clamping arm 12, and the other end is drively connected to the transmission member 14. During the rotation of the retaining member 13 relative to the second clamping arm 12, the retaining member 13 can drive the transmission member 14 to move, thereby causing the first clamping arm 11 to rotate toward or away from the second clamping arm 12, so as to realize the clamping or releasing of the overhead cable 201 by the first clamping arm 11 and the second clamping arm 12.

[0050] In one embodiment, one end of the first clamping arm 11 is rotatably connected to the second clamping arm 12. The middle section of the first clamping arm 11 is drive-connected to the end of the transmission member 14 away from the retaining member 13. The distance between the end of the transmission member 14 away from the retaining member 13 and the rotation axis of the first clamping arm 11 and the second clamping arm 12 is less than the distance between the overhead cable 201 and the rotation axis of the first clamping arm 11 and the second clamping arm 12.

[0051] In one embodiment, such as Figure 9 and Figure 10 As shown, the first end 111 of the first clamping arm 11 is rotatably connected to the third end 121 of the second clamping arm 12. The retaining member 13 is rotatably connected to the middle section of the second clamping arm 12. The two ends of the transmission member 14 are rotatably connected to the middle section of the first clamping arm 11 and the end of the retaining member 13 away from the second clamping arm 12, respectively. During the movement of the retaining member 13 relative to the second clamping arm 12, the retaining member 13 can drive the first clamping arm 11 to rotate relative to the second clamping arm 12 through the transmission member 14, thereby clamping or releasing the overhead cable 201.

[0052] For ease of description, in subsequent embodiments, the axis of rotation between the first end 111 of the first clamping arm 11 and the third end 121 of the second clamping arm 12 is defined as the first axis of rotation 101. The axis of rotation between the holding member 13 and the second clamping arm 12 is defined as the second axis of rotation 102. The axis of rotation between the transmission member 14 and the first clamping arm 11 is defined as the third axis of rotation 103. The axis of rotation between the transmission member 14 and the holding member 13 is defined as the fourth axis of rotation 104.

[0053] The distance between the end of the transmission member 14 furthest from the holding member 13 and the pivot of the first clamping arm 11 and the second clamping arm 12 is less than the distance between the overhead cable 201 and the pivot of the first clamping arm 11 and the second clamping arm 12. That is, the distance between the third pivot 103 and the first pivot 101 is less than the distance between the overhead cable 201 and the first pivot 101. Along the radial direction of the first pivot 101, the overhead cable 201 is located on the side of the third pivot 103 opposite to the first pivot 101. The transmission member 14 is closer to the first pivot 101 than the overhead cable 201, preventing the overhead cable 201 from being too close to the first pivot, preventing interference from the overhead cable 201 on the movement of the transmission member 14, and ensuring the normal operation of the clamping mechanism 10.

[0054] In one embodiment, such as Figure 7 and Figure 10As shown, the clamping mechanism 10 includes two abutment portions 15. Along the axial direction of the first rotating shaft 101, the two abutment portions 15 are located on opposite sides of the first clamping arm 11. One abutment portion 15 is fixed to the first clamping arm 11, and the other abutment portion 15 is fixed to the second clamping arm 12. The two abutment portions are spaced apart from the first rotating shaft 101 radially. The extending direction of each abutment portion 15 intersects the axis of the first rotating shaft 101. The side of each abutment portion 15 facing away from the first rotating shaft 101 is used to abut against the overhead cable, thereby limiting the depth of the overhead cable 201 inserted into the clamping jaws of the first clamping arm 11 and the second clamping arm 12, preventing the overhead cable 201 from interfering with the movement of the transmission member 14, and ensuring the normal operation of the clamping mechanism 10.

[0055] In one embodiment, when the first clamping arm 11 and the second clamping arm 12 clamp the overhead cable 201, the distance between the pivot of the retaining member 13 and the end of the transmission member 14 away from the retaining member 13 is less than the length of the transmission member 14.

[0056] In one embodiment, such as Figure 10 As shown, when the holding member 13 drives the first clamping arm 11 and the second clamping arm 12 to clamp the overhead cable 201, the fourth rotating shaft 104 is located on the side of the second rotating shaft 102 away from the first clamping arm 11, so that the transmission member 14 has sufficient length to ensure that the first clamping arm 11 and the second clamping arm 12 apply greater pressure to the overhead cable 201, so as to achieve the effect of the clamping mechanism 10 stably clamping the overhead cable 201.

[0057] In one embodiment, the transmission member 14 includes a spring. The two ends of the spring are respectively connected to the retaining member 13 and the first clamping arm 11. The retaining member 13 is used to move relative to the second clamping arm 12 to generate a spring force, thereby causing the first clamping arm 11 to rotate toward the second clamping arm 12.

[0058] The spring can generate elastic force during the movement of the retaining member 13 relative to the second clamping arm 12, thereby driving the first clamping arm 11 to rotate toward the second clamping arm 12. The elastic force generated by the deformation of the spring itself can also further increase the pressure of the first clamping arm 11 on the overhead cable 201, so as to realize the clamping mechanism 10 to smoothly clamp the overhead cable.

[0059] During the process of the overhead cable 201 extending into the clamping joint formed by the first clamping arm 11 and the second clamping arm 12, the spring can also change the circumferential distance between the first clamping arm 11 and the second clamping arm 12 along the first rotating shaft 101 through its own elastic deformation, so as to avoid scratching the overhead cable 201 by the distance being too small.

[0060] In one embodiment, one of the opposing side surfaces of the first clamping arm 11 and the second clamping arm 12 includes an inclined surface 105. Along a direction away from the axis of rotation of the first clamping arm 11 and the second clamping arm 12, the circumferential distance between the inclined surface 105 and the other opposing side surface of the first clamping arm 11 and the second clamping arm 12 gradually increases along the axis of rotation of the first clamping arm 11 and the second clamping arm 12.

[0061] In one embodiment, such as Figure 10 As shown, the inclined surface 105 is used to guide the overhead cable 201 to extend between the first clamping arm 11 and the second clamping arm 12, so that the operator can align the clamping mouth formed by the first clamping arm 11 and the second clamping arm 12 with the overhead cable 201, thereby increasing the installation speed of the clamping mechanism 10 and the overhead cable 201 and facilitating the rapid installation of the jumper device 100 and the overhead cable 201.

[0062] In one embodiment, the clamping mechanism 10 includes a limiting member 16. The limiting member 16 is movably connected to the second clamping arm 12. The limiting member 16 is used to restrict the movement of the retaining member 13 to maintain the state in which the first clamping arm 11 and the second clamping arm 12 clamp the overhead cable 201.

[0063] In one embodiment, such as Figure 10 As shown, the limiting member 16 cooperates with the retaining member 13 to restrict the movement of the retaining member 13 relative to the second clamping arm 12, thereby maintaining the position of the first clamping arm 11 relative to the second clamping arm 12. When the first clamping arm 11 and the second clamping arm 12 clamp the overhead cable 201, the limiting member 16 can restrict the rotation of the first clamping arm 11 relative to the second clamping arm 12 by the movement of the retaining member 13 relative to the second clamping arm 12, thereby maintaining the state of the first clamping arm 11 and the second clamping arm 12 clamping the overhead cable 201 and ensuring the long-term fixation of the conductor and the overhead cable 201.

[0064] In one embodiment, the limiting member 16 is rotatably connected to the second clamping arm 12. The pivot of the limiting member 16 and the second clamping arm 12 is located on the side of the retaining member 13 opposite to the pivot of the first clamping arm 11 and the second clamping arm 12. One of the retaining member 13 and the limiting member 16 includes one of a pair of cooperating latches 17 and latches 18, and the other includes the other of a pair of cooperating latches 17 and latches 18. The latches 18 are used to receive the latches 17 to restrict the movement of the retaining member 13.

[0065] In one embodiment, such as Figure 10 As shown, the pivot of the limiting member 16 and the second clamping arm 12 is farther away from the first pivot 101 than the holding member 13, so that the rotation of the limiting member 16 relative to the second clamping arm 12 is relatively independent from the rotation of the first clamping arm 11 relative to the second clamping arm 12, thus avoiding the rotation of the limiting member 16 relative to the second clamping arm 12 from affecting the state of the first clamping arm 11 and the second clamping arm 12 clamping the overhead cable.

[0066] The retaining member 13 includes a locking tongue 17. The limiting member 16 includes a locking jaw 18. The locking jaw 18 of the limiting member 16 is used to receive the locking tongue 17 of the retaining member 13 to limit the movement of the retaining member 13, thereby maintaining the state in which the first clamping arm 11 and the second clamping arm 12 clamp the overhead cable 201.

[0067] Please see Figure 11 This is a schematic diagram illustrating another partial structure of the bridging device 100 and the operating lever 202 provided in one embodiment of this application.

[0068] In one embodiment, the limiting member 16 includes a ring 161. The ring 161 is fixed to the end of the limiting member 16 away from the second clamping arm 12. The ring 161 is used to move relative to the second clamping arm 12 under the action of the hook end 203 of the operating lever 202, thereby releasing the limiting member 16 from restricting the holding member 13.

[0069] In one embodiment, such as Figure 11 As shown, the operating lever 202 has a hook end 203. The ring 161 easily engages with the hook end on the operating lever 202 to move the limiting member 16 relative to the second clamping arm, thereby releasing the limiting member 16 from restricting the holding member 13. Because the overhead cable 201 is relatively high, the ring 161 at the end of the limiting member 16 is easily visible to the operator and also facilitates movement of the ring 161 via the hook end 203 of the operating lever, thus releasing the restriction of the holding member 13.

[0070] Please see Figures 12-14 ,in Figure 12 This illustration shows a partial structural diagram of the clamping mechanism 10 provided in one embodiment of this application; Figure 13 This illustrates another partial structural diagram of the clamping mechanism 10 provided in one embodiment of this application; Figure 14 This illustration shows another partial structural diagram of the bridging device 100 and the operating lever 202 provided in one embodiment of this application.

[0071] In one embodiment, the clamping mechanism 10 includes a limiting pin 19. The limiting pin 19 is slidably connected to the second clamping arm 12. The direction of sliding of the limiting pin 19 is parallel to the axial direction of the limiting member 16 and the rotation axis of the second clamping arm 12. The limiting pin 19 is used to abut against the limiting member 16 to maintain the state in which the lock jaw 18 receives the locking tongue 17.

[0072] In one embodiment, such as Figures 10-13As shown, the limiting pin 19 is used to slide axially along the rotation axis of the limiting member 16 and the second clamping arm 12. Along the rotation axis of the limiting member 16 and the second clamping arm 12, the limiting pin 19 and the limiting member 16 at least partially overlap. The limiting pin 19 is used to abut against the limiting member 16 to restrict the limiting member 16 from rotating in a direction away from the retaining member 13, thereby maintaining the locking jaw 18 in the state of receiving the locking tongue 17 and preventing accidental operation of the limiting member 16 from causing the first clamping arm 11 and the second clamping arm 12 to release the overhead cable 201.

[0073] In one embodiment, the limiting member 16 includes a limiting hole. The limiting pin 19 is used to pass through the limiting hole of the limiting member 16 to restrict the limiting member 16 from rotating in a direction away from the retaining member 13, and can also maintain the locking jaw 18 in the state of receiving the locking tongue 17, thereby preventing misoperation of the limiting member 16 from causing the first clamping arm 11 and the second clamping arm 12 to release the overhead cable 201.

[0074] In one embodiment, such as Figure 12 and Figure 13 As shown, the limiting pin 19 includes an extension 191. The extension direction of the extension 191 intersects the axial direction of the limiting member 16 and the rotation axis of the second clamping arm 12. The extension 191 includes a bent end 192. The bent end 192 is used to cooperate with the hook end 203 of the operating lever 202. The limiting pin 19 is used to slide relative to the second clamping arm 12 under the action of the hook end 203 of the operating lever 202, thereby releasing the resistance to the limiting member 16.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A bridging device for bridging two overhead cables to short-circuit electrical equipment between the two overhead cables, characterized in that, The jumper includes a conductor and a clamping mechanism. The two ends of the conductor are used to conduct the two overhead cables respectively, and at least one end of the conductor is fixed to the overhead cable it is conducting through the clamping mechanism. The clamping mechanism includes a first clamping arm, a second clamping arm, a retaining member, and a transmission member. The first clamping arm is rotatably connected to the second clamping arm for clamping the overhead cable. The retaining member is movably connected to the second clamping arm and is used to drive the first clamping arm through the transmission member. The retaining member is used to move relative to the second clamping arm to drive the first clamping arm to rotate toward the second clamping arm, thereby smoothly clamping the overhead cable.

2. The bridging device as described in claim 1, characterized in that, One end of the retaining member is rotatably connected to the middle section of the second clamping arm, and the other end is drively connected to the transmission member. It is used to drive the first clamping arm to rotate relative to the second clamping arm through the transmission member, thereby clamping or releasing the overhead cable.

3. The bridging device as described in claim 2, characterized in that, One end of the first clamping arm is rotatably connected to the second clamping arm, and the middle section of the first clamping arm is drively connected to the end of the transmission member away from the retaining member, wherein: The distance between the end of the transmission component away from the retaining component and the pivot of the first clamping arm and the second clamping arm is less than the distance between the overhead cable and the pivot of the first clamping arm and the second clamping arm.

4. The bridging device as described in claim 3, characterized in that, When the first clamping arm and the second clamping arm clamp the overhead cable, the distance between the pivot of the holding member and the second clamping arm and the end of the transmission member away from the holding member is less than the length of the transmission member.

5. The bridging device as described in claim 1, characterized in that, The transmission component includes a spring, the two ends of which are respectively connected to the retaining member and the first clamping arm. The retaining member is used to move relative to the second clamping arm to generate elastic force in the spring, thereby driving the first clamping arm to rotate toward the second clamping arm.

6. The bridging device according to any one of claims 1-5, characterized in that, The clamping mechanism includes a limiting member that is movably connected to the second clamping arm. The limiting member is used to restrict the movement of the holding member in order to maintain the state in which the first clamping arm and the second clamping arm clamp the overhead cable.

7. The bridging device as described in claim 6, characterized in that, The limiting member is rotatably connected to the second clamping arm, and the pivot of the limiting member and the second clamping arm is located on the side of the holding member opposite to the pivot of the first clamping arm and the second clamping arm, wherein: One of the retaining member and the limiting member includes one of a pair of cooperating latches and latches, and the other includes the other of a pair of cooperating latches and latches, wherein the latches are used to receive the latches to restrict the movement of the retaining member.

8. The bridging device as described in claim 7, characterized in that, The clamping mechanism includes a limiting pin, which is slidably connected to the second clamping arm. The direction of sliding of the limiting pin is parallel to the axis of rotation of the limiting member and the second clamping arm. The limiting pin is used to abut against the limiting member to maintain the state in which the lock jaws receive the bolt.

9. The bridging device as described in claim 6, characterized in that, The limiting member includes a ring, which is fixed to the end of the limiting member away from the second clamping arm. The ring is used to move relative to the second clamping arm under the action of the hook end of the operating lever, thereby releasing the limiting member from restricting the holding member.

10. The bridging device according to any one of claims 1-5, characterized in that, One of the opposing side surfaces of the first clamping arm and the second clamping arm includes an inclined surface, and the circumferential distance between the inclined surface and the other opposing side surface of the first clamping arm and the second clamping arm gradually increases along the axis of rotation of the first clamping arm and the second clamping arm.

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