Three-phase terminal placement platform and overhead line emergency repair auxiliary equipment

Abstract

This utility model discloses a three-phase terminal placement platform and an auxiliary device for emergency repair of overhead lines. The three-phase terminal placement platform is used to place power transfer terminals. The power transfer terminal includes a base plate and a terminal body set on the base plate. The base plate has a first mounting hole. The three-phase terminal placement platform includes: a base; three support plates, all of which are set on the base. One end of the support plate has an avoidance notch, and the support plate has a second mounting hole. The projection of the avoidance notch on the horizontal plane is located to the side of the projection of the base on the horizontal plane, and the two do not coincide. The three support plates are used to support three power transfer terminals respectively. In the corresponding support plates and power transfer terminals: the avoidance notch allows the cable connected to the terminal body to pass through; the support plate is used to support the base plate and the first mounting hole and the second mounting hole are arranged opposite each other; the first mounting hole and the second mounting hole allow a fastener to pass through to fix the support plate to the base plate.

Description

Technical Field

[0001] This utility model relates to the field of overhead line emergency repair technology, and in particular to a three-phase terminal placement platform and an auxiliary device for overhead line emergency repair. Background Technology

[0002] In emergency repairs and temporary relocations of high-voltage overhead lines, rapidly constructing a three-phase load transfer system is a crucial step in restoring power. This process requires simultaneously lifting three independent transfer terminals to high altitudes, connecting them to the three-phase conductors of the overhead line, and then connecting them to ground-based transfer equipment via cables. Because the work environments are often complex outdoor terrains (such as farmland, mountains, and narrow passages), and are frequently carried out under adverse weather conditions or emergency power outage pressures, extremely high demands are placed on the equipment's installation efficiency, operational safety, and stability.

[0003] In related technologies, each time a single power transfer terminal is lifted, the operation needs to be repeated three times. The three independent lifts and falls take a long time, which seriously delays the emergency repair window. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a three-phase terminal placement platform, which can improve the efficiency of emergency repairs of overhead lines.

[0005] This utility model also proposes an overhead line emergency repair auxiliary device with the above-mentioned three-phase terminal placement platform.

[0006] A three-phase terminal placement platform according to a first aspect of the present invention is used for placing power transfer terminals. Each power transfer terminal includes a base plate and a terminal body disposed on the base plate. The base plate has a first mounting hole. The three-phase terminal placement platform includes: a base; and three support plates, each of which is disposed on the base. One end of each support plate has a clearance notch, and each support plate has a second mounting hole. The projection of the clearance notch on a horizontal plane is located to the side of the projection of the base on the horizontal plane, and the two do not coincide. The three support plates are used to support three power transfer terminals respectively. In the corresponding support plates and power transfer terminals: the clearance notch allows a cable connected to the terminal body to pass through; the support plate supports the base plate and the first mounting hole and the second mounting hole are arranged opposite each other; a fastener passes through the first mounting hole and the second mounting hole to fix the support plate to the base plate.

[0007] The three-phase terminal placement platform according to the embodiments of this utility model has at least the following beneficial effects: The three-phase terminal placement platform of this invention allows for the placement of three power transfer terminals, enabling simultaneous lifting and lowering of all three terminals and improving efficiency. Furthermore, the operation of placing the power transfer terminals on the support plate is simple. Specifically, during the placement of the power transfer terminals, the cables will not interfere with the three-phase terminal placement platform (an avoidance notch is provided, ensuring the support plate does not interfere with the cables; the projection of the avoidance notch on the horizontal plane does not coincide with the projection of the base on the horizontal plane, thus preventing the base from interfering with the cables). Additionally, by stacking the base plate of the power transfer terminal on the support plate, aligning the first and second mounting holes, and securing the base plate and support plate with fasteners, the power transfer terminal can be fixed, simplifying the operation.

[0008] According to some embodiments of the present invention, the support plate has a connecting portion and a clearance portion. The connecting portion is connected to the base, and the clearance portion extends to the side of the base. The projection of the clearance portion on the horizontal plane is located to the side of the projection of the base on the horizontal plane, and the two do not overlap. The clearance notch is formed in the clearance portion.

[0009] According to some embodiments of the present invention, the three support plates are spaced apart on a horizontal plane, and the projections of the three support plates on the horizontal plane do not overlap.

[0010] According to some embodiments of the present invention, the three support plates are defined as a first support plate, a second support plate, and a third support plate, wherein the orientation of the clearance portion of the first support plate is a first direction, the orientation of the clearance portion of the second support plate is a second direction, and the orientation of the clearance portion of the third support plate is a third direction. The angle between the first direction and the second direction is an acute angle, and the angle between the first direction and the third direction is also an acute angle.

[0011] According to some embodiments of the present invention, a plane perpendicular to the first direction is defined as a reference plane, and the projection of the first support plate on the reference plane is located between the projection of the second support plate on the reference plane and the projection of the third support plate on the reference plane.

[0012] According to some embodiments of the present invention, the three-phase terminal placement platform further includes a fence disposed on the base.

[0013] According to some embodiments of this utility model, the fence and the base are detachably connected.

[0014] According to some embodiments of the present invention, the fence includes three guardrails, which are circumferentially spaced along the edge of the base, and a clearance space is formed between each pair of adjacent guardrails to avoid the power transfer terminal.

[0015] An overhead line emergency repair auxiliary device according to a second aspect of the present invention includes: a lifting device; a three-phase terminal placement platform as described in the above embodiment, wherein the three-phase terminal placement platform is disposed on the lifting device, and the lifting device is used to drive the three-phase terminal placement platform to lift.

[0016] The overhead line emergency repair auxiliary equipment according to the embodiments of this utility model has at least the following beneficial effects: The three-phase terminal placement platform of this invention allows for the placement of three power transfer terminals, enabling simultaneous lifting and lowering of all three terminals and improving efficiency. Furthermore, the operation of placing the power transfer terminals on the support plate is simple. Specifically, during the placement of the power transfer terminals, the cables will not interfere with the three-phase terminal placement platform (an avoidance notch is provided, ensuring the support plate does not interfere with the cables; the projection of the avoidance notch on the horizontal plane does not coincide with the projection of the base on the horizontal plane, thus preventing the base from interfering with the cables). Additionally, by stacking the base plate of the power transfer terminal on the support plate, aligning the first and second mounting holes, and securing the base plate and support plate with fasteners, the power transfer terminal can be fixed, simplifying the operation.

[0017] According to some embodiments of the present invention, a movable mounting base is also included, and the lifting device is disposed on the mounting base.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram illustrating the operating principle of an overhead line emergency repair auxiliary device according to an embodiment of this utility model. Figure 2 This is a schematic diagram of the structure of an overhead line emergency repair auxiliary equipment according to an embodiment of the present invention when the power transfer terminal is not installed; Figure 3 This is a schematic diagram of the structure of an overhead line emergency repair auxiliary equipment according to an embodiment of the present invention, with a power transfer terminal installed; Figure 4 This is a schematic diagram of the structure of an overhead line emergency repair auxiliary equipment after it has been raised according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a three-phase terminal placement platform according to an embodiment of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7This is a schematic diagram of the structure of a power transfer terminal according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a three-phase terminal placement platform with a power transfer terminal installed according to an embodiment of the present invention; Figure 9 for Figure 8 Enlarged view of point B in the middle; Figure 10 This diagram illustrates the fit between the cable guide rail and the cable according to one embodiment of the present invention. Figure 11 for Figure 10 Enlarged view of point C in the middle; Figure 12 yes Figure 4 The front view of the figure shown; Figure 13 This is a schematic diagram of the structure of a lifting device according to an embodiment of the present invention. Figure 1 ; Figure 14 This is a schematic diagram of the structure of a lifting device according to an embodiment of the present invention. Figure 2 ; Figure 15 This is a schematic diagram of the structure of a lifting device according to an embodiment of the present invention. Figure 3 ; Figure 16 This is a schematic diagram of the structure of the first clamping device according to an embodiment of the present invention; Figure 17 This is a cross-sectional view of the first clamping device according to an embodiment of the present invention.

[0020] Icon labels: 10. Power transfer terminal; 11. Base plate; 12. Terminal body; 13. First assembly hole; 20. Cable; 30. Fastener; 40. Overhead line; 50. Jumper wire; 100. Lifting device; 110. Mast assembly; 111. Fixed mast; 1111. First pulley; 112. First lifting mast; 1121. Second pulley; 113. Second lifting mast; 1131. Third pulley; 114. Top section mast; 115. Cable retraction device; 116. Cable; 200. Three-phase terminal placement platform; 210. Base; 220. Support plate; 220a. First support plate; 220b. Second support plate; 220c. Third support plate; 221. Clearance notch; 222. Second mounting hole; 223. Connecting part; 224. Clearance part; 230. Fence; 231. Guardrail; 240. Clearance space; 300. Cable guide rail; 310. Mounting plate; 320. Guide roller assembly; 321. Guide roller; 400. Mounting bracket; 500, outriggers; 600, First clamping device; 610, Housing; 620, Fixed clamping block; 630, Moving clamping block; 640, Linear drive component; 700. Second clamping device. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 2 , Figure 3 As shown, an overhead line emergency repair auxiliary device provided in one embodiment of the present invention includes a lifting device 100 and a three-phase terminal placement platform 200 disposed on the lifting device 100. The lifting device 100 is used to drive the three-phase terminal placement platform 200 to lift and lower, and the three-phase terminal placement platform 200 is used to place the power supply terminal 10.

[0025] like Figures 1 to 4As shown, it can be understood that the power transfer terminal 10 can be placed on the three-phase terminal placement platform 200 and then lifted by the lifting device 100. Specifically, three power transfer terminals 10 can be placed on the three-phase terminal placement platform 200, and then the lifting device 100 can lift the three power transfer terminals 10 to approach the overhead line 40. After the three power transfer terminals 10 are close to the overhead line 40, the three wires of the overhead line 40 can be connected to the three power transfer terminals 10 respectively by means of jumper wires 50. The power transfer terminals 10 are connected to the cable 20, and the cable 20 is connected to the power transfer equipment, which is used to connect to the electrical equipment. In this way, with the help of the power transfer terminals 10, the cable 20, and the corresponding power transfer equipment, electricity can be transmitted to the electrical equipment across the fault section or relocation section of the overhead line 40.

[0026] like Figure 3 As shown, it should be noted that the overhead line emergency repair auxiliary equipment also includes a mounting base 400, and the lifting device 100 is mounted on the mounting base 400. The mounting base 400 is used to provide support for the lifting device 100.

[0027] The mounting base 400 can be equipped with drive wheels, allowing it to move on the ground.

[0028] Furthermore, the mounting base 400 may be provided with a support leg 500, which can extend downwards or retract upwards. When the support leg 500 is in the retracted state, it will not affect the movement of the mounting base 400. When the support leg 500 is extended downwards, it can be supported on the ground to improve the stability of the equipment.

[0029] like Figure 7 As shown, it should be noted that the power transfer terminal 10 includes a base plate 11 and a terminal body 12 disposed on the base plate 11. The terminal body 12 is used to connect the cable 20, and the base plate 11 is provided with a first mounting hole 13. Specifically, the first mounting hole 13 penetrates through the upper and lower sides of the base plate 11.

[0030] Combination Figure 5 and Figure 6 The three-phase terminal placement platform 200 includes a base 210 and three support plates 220. The three support plates 220 are all set on the base 210 and are used to support the three power transfer terminals 10 respectively.

[0031] One end of the support plate 220 is provided with a clearance notch 221, and the support plate 220 is provided with a second mounting hole 222; wherein, the projection of the clearance notch 221 on the horizontal plane is located to the side of the projection of the base 210 on the horizontal plane, and the two (the projection of the clearance notch 221 on the horizontal plane and the projection of the base 210 on the horizontal plane) do not coincide.

[0032] like Figures 5 to 9As shown, the specific process of placing the power transfer terminal 10 on the three-phase terminal placement platform 200 is as follows: the power transfer terminal 10 is moved from the side of the support plate 220 toward the clearance notch 221, so that the cable 20 connected to the terminal body 12 passes into the clearance notch 221, and the base plate 11 is stacked on the support plate 220, with the first mounting hole 13 and the second mounting hole 222 facing each other. Then, fasteners 30 are inserted into the first mounting hole 13 and the second mounting hole 222 to fix the support plate 220 and the base plate 11. The first mounting hole 13 and the second mounting hole 222 can be through holes, and the fasteners 30 are a set consisting of bolts and nuts. By inserting the bolts into the first mounting hole 13 and the second mounting hole 222 and tightening the bolts with the nuts, the support plate 220 and the base plate 11 can be fixed.

[0033] The three-phase terminal placement platform 200 of this invention enables the placement of three power transfer terminals 10, allowing for simultaneous lifting and lowering of all three terminals, thus improving efficiency. Furthermore, the operation of placing the power transfer terminals 10 on the support plate 220 is simple. Specifically, during the placement of the power transfer terminals 10, the cable 20 will not interfere with the three-phase terminal placement platform 200 (an avoidance notch 221 is provided, the support plate 220 will not interfere with the cable 20, and the projection of the avoidance notch 221 on the horizontal plane does not coincide with the projection of the base 210 on the horizontal plane, so the base 210 will not interfere with the cable 20). Additionally, by stacking the base plate 11 of the power transfer terminal 10 on the support plate 220, aligning the first mounting hole 13 and the second mounting hole 222, and fixing the base plate 11 and the support plate 220 with fasteners 30, the power transfer terminal 10 can be secured, simplifying the operation.

[0034] like Figure 6 As shown, specifically, the support plate 220 has a connecting portion 223 and a clearance portion 224. The connecting portion 223 is connected to the base 210, and the clearance portion 224 extends to the side of the base 210. The projection of the clearance portion 224 on the horizontal plane is located to the side of the projection of the base 210 on the horizontal plane, and the two (the projection of the clearance portion 224 on the horizontal plane and the projection of the base 210 on the horizontal plane) do not coincide. The clearance notch 221 is formed in the clearance portion 224.

[0035] Understandably, the connecting part 223 is disposed on the base 210, and the connecting part 223 is fixed to the base 210 by bolts, while the clearance part 224 extends from the side of the base 210, so that the projection of the clearance part 224 on the horizontal plane is located to the side of the projection of the base 210 on the horizontal plane and the two do not coincide. The clearance notch 221 is formed in the clearance part 224 and passes through the side of the clearance part 224 away from the connecting part 223. It should be noted that the clearance notch 221 also passes through the upper and lower sides of the clearance part 224.

[0036] It should be noted that the three support plates 220 are spaced apart on the horizontal plane, and the projections of the three support plates 220 on the horizontal plane do not overlap. Specifically, the three support plates 220 are spaced apart circumferentially along the edge of the base 210, so that when the three power transfer terminals 10 are respectively placed on the three support plates 220, the installation of each power transfer terminal 10 does not interfere with each other.

[0037] Three support plates 220 are defined as the first support plate 220a, the second support plate 220b, and the third support plate 220c. The orientation of the clearance portion 224 of the first support plate 220a is the first direction, the orientation of the clearance portion 224 of the second support plate 220b is the second direction, and the orientation of the clearance portion 224 of the third support plate 220c is the third direction. The angle between the first and second directions is an acute angle, and the angle between the first and third directions is also an acute angle. In other words, as shown in Figure 4, the clearance portion 224 of each support plate 220 is oriented to essentially the same side. Figure 4 (Left side of the middle), so that the three power transfer terminals 10 can be placed on the three support plates 220 from left to right respectively.

[0038] Specifically, the first direction is to the left, the second direction is to the left and deviates from the first direction by a certain angle (preferably within 45°), and the second direction is to the left and also deviates from the first direction by a certain angle (preferably within 45°).

[0039] Understandably, the three cables 20 used to connect the power transfer equipment extend in essentially the same direction. For ease of understanding, the power transfer equipment is located on the left, with the left end of each cable 20 connected to the power transfer equipment and the right end of each cable 20 connected to a power transfer terminal 10. By aligning the clearance portion 224 of each support plate 220 substantially to the left, the three power transfer terminals 10 can be placed on the three support plates 220 from left to right, making operation more convenient.

[0040] Furthermore, a plane perpendicular to the first direction is defined as a reference plane, and the projection of the first support plate 220a on the reference plane is located between the projection of the second support plate 220b on the reference plane and the projection of the third support plate 220c on the reference plane.

[0041] like Figure 5 As shown, in some embodiments, the three-phase terminal placement platform 200 further includes a fence 230 disposed on the base 210. It is understood that when the power transfer terminal 10 is placed on the three-phase terminal placement platform 200, the platform is a certain distance from the ground (typically 2m-4m). Placing the power transfer terminal 10 on the support plate 220 requires an operator to climb onto the base 210 to operate it; the fence 230 ensures the safety of the operator.

[0042] Furthermore, the fence 230 is detachably connected to the base 210.

[0043] Understandably, before placing the three power transfer terminals 10 on the three-phase terminal placement platform 200, the guardrail 230 is connected to the base 210. This connection provides safety for operators during the placement of the power transfer terminals 10 on the support plate 220. Once the three power transfer terminals 10 are in place, the guardrail 230 can be removed. Understandably, before removal, the guardrail 230 is close to the three power transfer terminals 10, making it easy for electricity near the terminals to strike the guardrail 230, posing a safety hazard. Removing the guardrail 230 reduces this safety risk.

[0044] Specifically, the fence 230 includes three guardrails 231, which are circumferentially spaced along the edge of the base 210. A clearance space 240 is formed between each two adjacent guardrails 231 to avoid the power transfer terminal 10. The clearance space 240 is used to avoid the power transfer terminal 10 installed on the support plate 220.

[0045] like Figure 4 As shown, in some embodiments, the overhead line emergency repair auxiliary equipment also includes a cable guide rail 300, which is mounted on the mounting base 400 with its top end facing upwards and its bottom end facing away from the mounting base 400.

[0046] Specifically, there are three cable guide rails 300. The top ends of the three cable guide rails 300 are respectively set towards the clearance notches 221 of the three support plates 220, and the bottom ends of the cable guide rails 300 are set away from the mounting base 400.

[0047] Understandably, after placing the three power transfer terminals 10 on the three support plates 220 of the three-phase terminal placement platform 200, three cables 20 connected to the three power transfer terminals 10 can be passed through the three cable guides 300 respectively. In this way, when the subsequent lifting device 100 drives the three power transfer terminals 10 to lift, the three cables 20 can move along the three cable guides 300 respectively. On the one hand, this can improve the stability of the cables 20 during the lifting process and improve the problem of large swaying amplitude of the cables 20. On the other hand, in the corresponding cable guides 300 and support plates 220, the top of the cable 20 terminal is set towards the avoidance notch 221 of the support plate 220. The cable 20 located between the cable guide 300 and the support plate 220 has better verticality, which can improve the problem of oblique pulling caused by the cable 20 applying an oblique force to the power transfer terminal 10 and improve the safety of the power transfer terminal 10.

[0048] like Figure 10 Figure 11 As shown, specifically, the cable guide rail 300 includes two mounting plates 310 arranged side by side and spaced apart, forming a wire passage between the two mounting plates 310. The top end of the wire passage faces upward and the bottom end faces away from the mounting base 400. The cable guide rail 300 also includes a plurality of guide roller assemblies 320 arranged at intervals along the extension direction of the wire passage.

[0049] Understandably, the cable 20 passes between the two mounting plates 310 and is guided by the guide roller assembly 320.

[0050] Furthermore, the guide roller assembly 320 includes two guide rollers 321, both ends of which are respectively connected to two mounting plates 310, and the two guide rollers 321 are spaced apart. The spacing direction of the two guide rollers 321 is perpendicular to the spacing direction of the two mounting plates 310, and a wire-passing gap is formed between the two guide rollers 321.

[0051] Understandably, the cable 20 is inserted between the two mounting plates 310 and into the cable passage gap of each guide roller assembly 320. The cable 20 is guided by the two guide rollers 321 of the guide roller assembly 320, and the guide rollers 321 roll in cooperation with the cable 20.

[0052] Furthermore, one of the guide rollers 321 in the guide roller assembly 320 is used to provide support for the cable 20, and is detachably connected to the two mounting plates 310 by means of one guide roller 321.

[0053] Understandably, one of the guide rollers 321 in the guide roller assembly 320 is used to support the cable 20 and bear its weight, while the other guide roller 321 cooperates with it to prevent the cable 20 from shifting. Before the cable 20 is placed on the cable guide rail 300, the guide roller 321 that does not provide support is in a disassembled state. At this time, the cable 20 can be placed on the guide roller 321 that provides support first, and then the guide roller 321 that does not provide support can be installed, thereby preventing the cable 20 from shifting.

[0054] Specifically, the two mounting plates 310 of the cable guide rail 300 are spaced apart in the horizontal direction. For at least a portion of the guide roller assemblies 320, one guide roller 321 is located below the other guide roller 321. The lower guide roller 321 is used to support the cable 20, while the upper guide roller 321 is a detachable component.

[0055] like Figure 12 As shown, in some embodiments, the lifting device 100 is a mast-type lifting device that can drive the three-phase terminal placement platform 200 to rise and fall.

[0056] Specifically, the lifting device 100 includes a mast assembly 110, which can extend upward to lift the three-phase terminal placement platform 200, and can also retract downward to lower the three-phase terminal placement platform 200.

[0057] Specifically, in this embodiment, the lifting device 100 includes two mast assemblies 110, which are spaced apart horizontally. The three-phase terminal placement platform 200 is simultaneously supported by the two mast assemblies 110. The two mast assemblies 110 can simultaneously extend upwards or retract downwards, thereby raising or lowering the three-phase terminal placement platform 200. The simultaneous support of the three-phase terminal placement platform 200 by the two mast assemblies 110 provides greater stability to the platform and improves the operational safety of staff.

[0058] The mast assembly 110 includes a fixed mast 111, a first lifting mast 112 that is vertically mounted on the fixed mast 111, and a second lifting mast 113 that is vertically mounted on the first lifting mast 112.

[0059] Specifically, the fixed mast 111 is fixedly mounted on the mounting base 400; the first lifting mast 112 is mounted on the fixed mast 111 and can be raised and lowered relative to the fixed mast 111; the second lifting mast 113 is mounted on the first lifting mast 112 and can be raised and lowered relative to the first lifting mast 112; and the three-phase terminal placement platform 200 is mounted on the second lifting mast 113.

[0060] It should be noted that one or more lifting masts may be set between the first lifting mast 112 and the fixed mast 111, one or more lifting masts may also be set between the second lifting mast 113 and the first lifting mast 112, and one or more lifting masts may also be set between the three-phase terminal placement platform 200 and the second lifting mast 113.

[0061] The first clamping device 600 is disposed on the first lifting mast 112 and is used to clamp the cable 20 connected to the power transfer terminal 10; the second clamping device 700 is disposed on the second lifting mast 113 and is also used to clamp the cable 20.

[0062] It should be noted that the first clamping device 600 and the second clamping device 700 can be electric clamping devices, which can automatically clamp or release the cable 20 under controlled conditions.

[0063] During the process of the lifting device 100 driving the three-phase terminal placement platform 200, on which the power transfer terminal 10 is placed, to rise, the second lifting mast 113 rises before the first lifting mast 112. Specifically, when the mast assembly 110 drives the three-phase terminal placement platform 200 to rise, not all the lifting masts rise together, but each lifting mast rises in sequence.

[0064] Furthermore, during the process of the lifting device 100 driving the three-phase terminal placement platform 200 on which the power transfer terminal 10 is placed to rise, the second clamping device 700 clamps the cable 20 before the first clamping device 600. When the second clamping device 700 performs the clamping action on the cable 20, the cable 20 does not move up or down relative to the second clamping device 700. When the first clamping device 600 performs the clamping action on the cable 20, the cable 20 does not move up or down relative to the first clamping device 600.

[0065] Understandably, since the mast assembly 110 does not raise all the lifting masts together when driving the three-phase terminal placement platform 200 to rise, but rather each lifting mast rises sequentially, the cable 20 will not move relative to the second lifting mast 113 in the vertical direction for a certain period of time, but will move relative to the first lifting mast 112 in the vertical direction. If the first clamping device 600 and the second clamping device 700 clamp the cable 20 simultaneously in the initial stage of the mast assembly 110 driving the three-phase terminal placement platform 200 to rise, then the cable 20 will be pulled by the first clamping device 600 and the second clamping device 700 and may break. In this application, since the second lifting mast 113 rises before the first lifting mast 112 during the process of the lifting device 100 driving the three-phase terminal placement platform 200 on which the power transfer terminal 10 is placed, when the cable 20 rises, the second lifting mast 113 will remain relatively stationary with the cable 20 in the vertical direction before the first lifting mast 112. Therefore, by having the second clamping device 700 clamp the cable 20 before the first clamping device 600, and by having the second clamping device 700 perform the clamping action on the cable 20 when the cable 20 is not rising or falling relative to the second clamping device 700, and the first clamping device 600 perform the clamping action on the cable 20 when the cable 20 is not rising or falling relative to the first clamping device 600, the problem of the cable 20 being pulled and broken by multiple clamping devices clamping the cable 20 at the same time can be prevented.

[0066] It should be emphasized that in this application, by using the first clamping device 600 and the second clamping device 700 (using multiple clamping devices) to clamp the cable 20, compared with the solution of not using clamping devices or only using a single clamping device to clamp the cable 20, the problem of cable 20 shaking can be further improved. Furthermore, after the second clamping device 700 clamps the cable 20 first, the second clamping device 700 can provide an upward traction force for the cable 20, which improves the problem that the connection between the cable 20 and the power transfer terminal 10 is prone to breakage because the traction force of the cable 20 is entirely provided by the power transfer terminal 10. Moreover, when the first clamping device 600 clamps the cable 20, the first clamping device 600 can also provide an upward traction force for the cable 20, further reducing the burden on the second clamping device 700 and the power transfer terminal 10. Furthermore, because the lifting masts in the mast assembly 110 rise sequentially rather than synchronously, it makes it possible to use the first clamping device 600 and the second clamping device 700 (using multiple clamping devices) to clamp the cable 20. If the lifting masts rise synchronously, during the upward unfolding of the mast assembly 110, except for the top section mast (the lifting mast that can rise to its highest point and is directly connected to the three-phase terminal placement platform), the other lifting masts maintain relative motion with the cable 20 in the vertical direction. Therefore, the remaining lifting masts cannot be equipped with corresponding clamping devices to clamp the cable 20 and provide traction for its ascent.

[0067] In addition, during the process of the lifting device 100 driving the three-phase terminal placement platform 200 on which the power transfer terminal 10 is placed to descend, the first lifting mast 112 descends before the second lifting mast 113, and the first clamping device 600 releases the cable 20 before the second clamping device 700.

[0068] Understandably, during the descent of the three-phase terminal placement platform 200, on which the power transfer terminal 10 is placed, driven by the lifting device 100, the first lifting mast 112 descends before the second lifting mast 113. When the first lifting mast 112 is fully retracted, the first clamping device 600 can release the cable 20 to avoid the problem that the first clamping device 600 cannot hold the cable 20 and thus prevent the cable 20 from descending smoothly. At this time, the second clamping device 700 still clamps the cable 20, providing traction for the cable 20 and improving the problem that the connection between the cable 20 and the power transfer terminal 10 is prone to breakage because the traction of the cable 20 is entirely provided by the power transfer terminal 10. When the second lifting mast 113 is fully retracted, the second clamping device 700 can release the cable 20 again.

[0069] like Figures 13 to 15As shown, in some embodiments, the fixed mast 111, the first lifting mast 112, and the second lifting mast 113 are arranged in a horizontal direction. The mast assembly 110 also includes a pull rope 116 and a pull rope retractor 115. One end of the pull rope 116 is connected to the pull rope retractor 115, and the pull rope 116 is connected to the fixed mast 111, the first lifting mast 112, and the second lifting mast 113.

[0070] When the rope retractor 115 retracts the rope 116, the rope 116 pulls the second lifting mast 113 to its fully extended state, and then pulls the first lifting mast 112 to its fully extended state. It should be noted that when the second lifting mast 113 is fully extended upwards, it can be locked by a locking device to prevent it from falling. Similarly, when the first lifting mast 112 is fully extended upwards, it can be locked by another locking device to prevent it from falling. When the rope retractor 115 extends the rope 116, the locking device used to lock the first lifting mast 112 unlocks first. After the first lifting mast 112 descends to its fully retracted state due to gravity, the locking device used to lock the second lifting mast 113 unlocks, and the second lifting mast 113 descends to its fully retracted state due to gravity.

[0071] It should be noted that the locking device can utilize various existing locking devices. For example, regarding the locking device for locking the second lifting mast 113, a retractable electric push rod can be provided at the bottom of the second lifting mast 113, and a corresponding lock hole can be provided at the top of the lifting mast adjacent to and following the second lifting mast 113. When the second lifting mast 113 is fully extended, the electric push rod can be inserted into the lock hole to lock the second lifting mast 113. It is understood that the locking devices on other lifting masts can also be set with reference to the above-described locking device for locking the second lifting mast 113, and will not be described in detail here.

[0072] The rope retractor 115 can be a retractor wheel device that can rotate forward or backward. When the retractor wheel device rotates forward, it can retract the rope 116. When the retractor wheel device rotates backward, the lifting mast descends due to gravity and pulls out the rope 116 on the retractor wheel device.

[0073] Specifically, the mast assembly 110 also includes a top mast 114. The fixed mast 111 is provided with two first pulleys 1111 spaced apart along the height direction. The first lifting mast 112 is provided with two second pulleys 1121 spaced apart along the height direction. The second lifting mast 113 is provided with two third pulleys 1131 spaced apart along the height direction. The pull rope 116 is provided by the pull rope retractor 115 and passes sequentially around the lower first pulley 1111, the upper first pulley 1111, the lower second pulley 1121, the upper second pulley 1121, the lower third pulley 1131, and the upper third pulley 1131. The end of the pull rope 116 away from the pull rope retractor 115 is connected to the bottom of the top mast 114. Thus, when the rope retractor 115 winds up the rope 116, the rope 116 will first pull the top mast 114 to its fully extended state, then pull the second lifting mast 113 to its fully extended state, and then pull the first lifting mast 112 to its fully extended state. It should be noted that when the top mast 114 is fully extended upwards, it can be locked by a locking device to prevent it from falling. When the second lifting mast 113 is fully extended upwards, it can be locked by a locking device to prevent it from falling. When the first lifting mast 112 is fully extended upwards, it can be locked by another locking device to prevent it from falling. When the rope retractor 115 extends the rope 116, the locking device for locking the first lifting mast 112 is unlocked first, and the first lifting mast 112 descends to the fully retracted state. Then, the locking device for locking the second lifting mast 113 is unlocked again, and the second lifting mast 113 descends to the fully retracted state. After that, the locking device for locking the top mast 114 is unlocked again, and the top mast 114 descends to the fully retracted state.

[0074] In other embodiments, the second lifting mast 113 is a top section mast, the fixed mast 111 is provided with two first pulleys 1111 spaced apart along the height direction, the first lifting mast 112 is provided with two second pulleys 1121 spaced apart along the height direction, the pull rope 116 is provided by the pull rope retractor 115 and passes sequentially around the lower first pulley 1111, the upper first pulley 1111, the lower second pulley 1121, and the upper second pulley 1121, and the end of the pull rope 116 away from the pull rope retractor 115 is connected to the bottom of the second lifting mast 113. Thus, when the rope retractor 115 retracts the rope 116, the rope 116 first pulls the second lifting mast 113 to its fully extended state, and then pulls the first lifting mast 112 to its fully extended state. It should be noted that when the second lifting mast 113 is fully extended upwards, it can be locked by a locking device to prevent it from falling. Similarly, when the first lifting mast 112 is fully extended upwards, it can be locked by another locking device to prevent it from falling. When the rope retractor 115 extends the rope 116, the locking device used to lock the first lifting mast 112 unlocks first. After the first lifting mast 112 descends to its fully retracted state due to gravity, the locking device used to lock the second lifting mast 113 unlocks, and the second lifting mast 113 then descends to its fully retracted state due to gravity.

[0075] Combination Figure 16 and Figure 17 In some embodiments, the first clamping device 600 and the second clamping device 700 have the same structure, both including a housing 610, a movable clamping block 630 disposed in the housing 610, a linear drive member 640 drivenly connected to the movable clamping block 630, and a fixed clamping block 620 disposed in the housing 610. The movable clamping block 630 and the fixed clamping block 620 are disposed opposite to each other, and the linear drive member 640 is used to drive the movable clamping block 630 closer to or further away from the fixed clamping block 620. The linear drive member 640 may be an electric push rod.

[0076] Understandably, when the linear drive 640 drives the moving clamp 630 to approach the fixed clamp 620, it can clamp the cable 20 located between the moving clamp 630 and the fixed clamp 620. When the linear drive 640 drives the moving clamp 630 away from the fixed clamp 620, it can release the cable 20 located between the moving clamp 630 and the fixed clamp 620.

[0077] It should be noted that the mast assembly 110, the first clamping device 600 and the second clamping device 700 can be connected to a controller to control the operation of the mast assembly 110, the first clamping device 600 and the second clamping device 700.

[0078] Specifically, the linear drive unit 640 of the pull rope retractor 115, the first clamping device 600, and the second clamping device 700 are all electrically connected to the controller.

[0079] Furthermore, the fixed clamp 620 is detachably connected to the housing 610. After the power transfer terminal 10 is installed on the three-phase terminal placement platform 200, the fixed clamp 620 can be removed first so that the cable 20 fits against the movable clamp 630. Then the fixed clamp 620 is installed on the housing 610 so that the cable 20 is placed between the fixed clamp 620 and the movable clamp 630.

[0080] The fixing block 620 can be detachably connected to the housing 610 by means of a pin, screw or clip.

[0081] When using the overhead line emergency repair auxiliary equipment of this utility model: (1) When municipal relocation or overhead line failure requires diversion of electricity, transport the equipment to a suitable location at the point where electricity needs to be diverted and place it stably. (2) Extend the outriggers 500 downwards and press them against the ground to ensure that the equipment is stable and reliable during use; (3) Install each power transfer terminal 10 on each support plate 220 of the three-phase terminal placement platform 200 respectively; (4) Insert the cable 20 into the first clamping device 600, the second clamping device 700 and the cable guide rail 300; (5) Remove fence 230; (6) The lifting device 100 drives the three-phase terminal placement platform 200 to rise. During this process, the second lifting mast 113 rises before the first lifting mast 112, and the second clamping device 700 clamps the cable 20 before the first clamping device 600. When the second clamping device 700 performs the clamping action on the cable 20, the cable 20 does not rise or fall relative to the second clamping device 700. When the first clamping device 600 performs the clamping action on the cable 20, the cable 20 does not rise or fall relative to the first clamping device 600. (7) After the three-phase terminal placement platform 200 is lifted to a suitable position, the jumper 50 is used to divert the current from the overhead line 40 to the transfer terminal 10, and then the current is transferred to the ground transfer equipment through the cable 20 connected to the transfer terminal 10, and then transferred to the power equipment by the transfer equipment across the fault section or relocation section. (8) Remove jumper 50 after the project is completed; (9) The lifting device 100 drives the three-phase terminal placement platform 200 to descend. During this process, the first lifting mast 112 descends before the second lifting mast 113. When the first lifting mast 112 is in the fully retracted state, the first clamping device 600 releases the cable 20 first. When the second lifting mast 113 is in the fully retracted state, the second clamping device 700 releases the cable 20 then.

[0082] (10) Reinstall fence 230; (11) Remove the cable 20 from the first clamping device 600, the second clamping device 700 and the cable guide rail 300, and remove each power transfer terminal 10 at the same time; (12) Retract the outriggers upwards.

[0083] 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 that embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0084] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A three-phase terminal placement platform for placement of a power conversion terminal, the power conversion terminal including a base plate and a terminal body disposed on the base plate, the base plate provided with a first assembly hole, characterized by, The three-phase terminal placement platform includes: Base; Three support plates are provided, all of which are disposed on the base. One end of each support plate is provided with a clearance notch, and the support plate is provided with a second mounting hole. The projection of the clearance notch on the horizontal plane is located to the side of the projection of the base on the horizontal plane, and the two do not coincide. The three support plates are used to support the three power transfer terminals respectively. In the corresponding support plates and power transfer terminals: the clearance notch allows the cable connected to the terminal body to pass through; the support plate is used to support the base plate and the first mounting hole and the second mounting hole are arranged opposite to each other; the first mounting hole and the second mounting hole allow a fastener to pass through to fix the support plate to the base plate.

2. The three-phase terminal placement platform according to claim 1, characterized in that, The support plate has a connecting part and a clearance part. The connecting part is connected to the base, and the clearance part extends to the side of the base. The projection of the clearance part on the horizontal plane is located to the side of the projection of the base on the horizontal plane, and the two do not coincide. The clearance notch is formed in the clearance part.

3. The three-phase termination placement platform of claim 1, wherein, The three support plates are spaced apart on a horizontal plane, and the projections of the three support plates on the horizontal plane do not overlap.

4. The three-phase termination placement platform of claim 1, wherein, The three support plates are defined as a first support plate, a second support plate, and a third support plate. The orientation of the clearance portion of the first support plate is a first direction, the orientation of the clearance portion of the second support plate is a second direction, and the orientation of the clearance portion of the third support plate is a third direction. The angle between the first direction and the second direction is an acute angle, and the angle between the first direction and the third direction is also an acute angle.

5. The three-phase termination placement platform of claim 4, wherein, Define a plane perpendicular to the first direction as a reference plane. The projection of the first support plate onto the reference plane is located between the projections of the second support plate onto the reference plane and the projections of the third support plate onto the reference plane.

6. The three-phase termination placement platform of claim 1, wherein, It also includes a fence installed on the base.

7. The three-phase termination placement platform of claim 6, wherein, The fence is detachably connected to the base.

8. The three-phase termination placement platform of claim 6, wherein, The fence includes three guardrails, which are circumferentially spaced along the edge of the base, and a clearance space is formed between each pair of adjacent guardrails to avoid the power transfer terminal.

9. An aerial line repair assist apparatus, characterized by, include: Lifting device; The three-phase terminal placement platform according to any one of claims 1 to 8, wherein the three-phase terminal placement platform is disposed on the lifting device, and the lifting device is used to drive the three-phase terminal placement platform to rise and fall.

10. The overhead line repair assist apparatus of claim 9, wherein, It also includes a movable mounting base, on which the lifting device is mounted.

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