CN109037985B - Multi-end anticreep earthing device - Google Patents
Multi-end anticreep earthing device Download PDFInfo
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- CN109037985B CN109037985B CN201810757962.XA CN201810757962A CN109037985B CN 109037985 B CN109037985 B CN 109037985B CN 201810757962 A CN201810757962 A CN 201810757962A CN 109037985 B CN109037985 B CN 109037985B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
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Abstract
The invention belongs to the field of power grid grounding devices, and particularly relates to a multi-end anti-drop grounding device. It can carry out the ground connection operation to a plurality of cables simultaneously, and can initiatively mediate the tensioning degree between ground wire and the cable to fixed earthing device prevents the multi-end anticreep earthing device that drops. Can satisfy the electric wire netting ground connection demand of routine maintenance operation through setting up four ground lead, through being connected with earth conductor electricity in a mount pad and simultaneously with four ground lead integration, adjust many times when avoiding a plurality of earth conductor to install and fix etc. ground connection operation.
Description
Technical Field
The invention belongs to the field of power grid grounding devices, and particularly relates to a multi-end anti-drop grounding device.
Background
In the process of power grid maintenance, in order to ensure the personal safety of an operator, a line to be detected needs to be grounded, the traditional mode is that a cable which is possibly electrified is connected to a grounding structure by using a grounding lead, the method is simple and effective, but along with the continuous improvement of power grid design and use requirements, the method is more and more difficult to adapt to the current use requirements, on one hand, various multi-path power grid structures continuously appear, the number of cables on the same path in the power grid structures is more and more, in the process of one-time maintenance, grounding operation needs to be carried out on a plurality of cables, correspondingly, a plurality of grounding leads also need to carry out repeated grounding operation for a plurality of times, the dismounting process is complicated, on the other hand, along with the increase of power grid voltage, the erection height of the power grid lines becomes more and more, so that a very long grounding end/line is, is inconvenient to carry and has higher cost. Meanwhile, the existing grounding device generally adopts a hanging mode, is not firm in connection and is easy to fall to cause danger or cause grounding failure.
Disclosure of Invention
The invention aims to provide a multi-end anti-drop grounding device which is easy to operate a plurality of cables and saves cable resources for grounding.
In order to achieve the purpose, the invention adopts the following technical scheme.
A multi-end anti-drop grounding device comprises four grounding leads for connecting a power transmission network, a winding assembly for winding and unwinding the grounding leads, a mounting seat for connecting and fixing the winding assembly and an operating rod for controlling the winding assembly to wind and unwind;
the winding assembly comprises a first turbine worm group, a second turbine worm group and a third turbine worm group, the first turbine worm group consists of a first turbine and a first worm, the second turbine worm group consists of a second turbine and a second worm, and the third turbine worm group consists of a third turbine and a third worm; the worms in the three worm wheel and worm rod groups are coaxial and arranged along the vertical direction, the worms in the three worm wheel and worm rod groups are respectively provided with a first connecting rod, a second connecting rod and a third connecting rod which extend downwards, the diameter of the first connecting rod is smaller than that of the first worm, the diameter of the second connecting rod is smaller than that of the second worm, and the diameter of the third connecting rod is smaller than that of the third worm; the third worm and the third connecting rod are provided with third mounting holes with the diameters matched with the diameters of the second connecting rod, so that the second connecting rod can be rotatably inserted into the third mounting holes;
the mounting seat comprises a connecting cylinder at the lowest end, the inner diameter of the connecting cylinder is matched with the third connecting rod so that the third connecting rod can be rotatably inserted into the connecting cylinder, a supporting frame is arranged at the upper end of the connecting cylinder, and the supporting frame comprises a first supporting lug arranged between the lower end surface of the first worm and the upper end surface of the second worm and a second supporting lug arranged on the lower end surface of the second worm and the upper end surface of the third worm; the first supporting lug and the second supporting lug are of flat plate structures which are horizontally arranged, a mounting hole with the diameter the same as that of the first connecting rod is arranged in the middle of the first supporting lug, and a mounting hole with the diameter the same as that of the second connecting rod is arranged in the middle of the second supporting lug; the supporting frame also comprises a U-shaped frame, the bottom edge of the U-shaped frame is plate-shaped and is connected with the connecting cylinder, the bottom edge is provided with a mounting hole so that a third connecting rod can pass through the mounting hole and be inserted into the connecting cylinder, and the first supporting lug and the second supporting lug are respectively connected to the inner wall of the U-shaped frame; mounting holes for mounting the turbine are further formed in the two arms of the U-shaped frame;
the winding assembly further comprises a plurality of winding wheels, the first worm wheel extends out of the rotating shafts from the axis position to two sides along the axis direction, the second worm and the third worm extend out of the rotating shafts from the axis position along the direction perpendicular to the two arms of the U-shaped frame, the four rotating shafts are respectively provided with the winding wheels, and the winding wheels are sleeved on the rotating shafts and rotate along with the worm wheels;
one end of each of the four grounding leads is fixed on the winding wheel, and the grounding leads can be wound on the winding wheel along with the rotation of the winding wheel; the other end of the grounding lead is provided with a hook capable of hooking the cable;
the lower end of the first connecting rod is hollow, the lower ends of the first connecting rod and the second connecting rod are respectively provided with a notch, the top end of the operating rod is provided with a connecting column, the top end of the connecting column is provided with a first step shaft and a second step shaft, the outer diameter of the first step shaft is matched with the hollow part of the first connecting rod, the outer diameter of the second step shaft is matched with the second connecting rod, the outer parts of the first step shaft and the second step shaft are provided with operating lugs protruding out of the shaft surface of the step shaft, and the operating lugs can be respectively inserted into the notches on the first connecting rod and the second connecting rod to respectively control the first worm and the second worm; the grounding lead is electrically connected with the four grounding leads respectively and extends out of the mounting seat.
Further, the central axes of the second turbine and the third turbine are parallel, the rotating shafts on the second turbine and the third turbine are positioned on the same side of the U-shaped frame and extend out of the wall of one side of the U-shaped frame, the U-shaped frame is provided with a supporting seat on the side, the supporting seat is of a cylindrical structure to support the reel and the rotating shaft, and the outer end of the supporting seat is provided with a mounting hole for fixing the rotating shaft.
Further, the grounding wire device further comprises a closed shell, the closed shell is sleeved outside the mounting seat, four wire holes are formed in the top end of the closed shell, the grounding wire extends out of the wire holes, and the diameter of each wire hole is slightly smaller than the size of the hook so as to prevent the hook from being drawn into the closed shell.
Furthermore, a third step shaft is arranged at the top end of the connecting column and below the second step shaft, the outer diameter of the third step shaft is matched with the inner diameter of a third connecting rod, a notch is formed in the lower end of the third connecting rod, and an operating lug capable of being inserted into the notch is correspondingly arranged on the third step shaft; the widest part of the first operating lug is smaller than the inner diameter of the second connecting rod, and the widest part of the second operating lug is smaller than the inner diameter of the third connecting rod; the top end of the first step shaft is provided with a rotating cap, the top end of the second step shaft is provided with a connecting shaft, the rotating cap is sleeved on the connecting shaft, and the connecting shaft and the rotating cap are connected through a ratchet wheel.
Furthermore, a ratchet wheel is arranged at the top end of the connecting shaft, a control handle is arranged on the inner wall of the rotating cap, and the control handle is matched with the ratchet wheel so as to enable the rotating cap to rotate in a single direction.
Further, the lower extreme of action bars is provided with the bulge, and the lower extreme of connecting cylinder is provided with first bayonet socket, and the bulge can agree with each other with first bayonet socket in order to prevent that the action bars from rotating after the action bars rises to the top.
Further, still include extension bar, the lower extreme of action bars is provided with the bayonet socket, and the top of extension bar is provided with the bayonet socket, bayonet socket and bayonet socket swing joint.
The beneficial effects are that:
based on actual needs, the invention provides the multi-end anti-falling grounding device which is convenient to operate, can simultaneously perform grounding operation on a plurality of cables, and can actively adjust the tensioning degree between a grounding wire and the cables so as to fix the grounding device and prevent falling. Can satisfy the electric wire netting ground connection demand of routine maintenance operation through setting up four ground lead, through being connected with earth conductor electricity in a mount pad and simultaneously with four ground lead integration, adjust many times when avoiding a plurality of earth conductor to install and fix etc. ground connection operation. The grounding lead is wound on the winding wheel, and the winding wheel can be used for tightening the grounding lead in the grounding process to tension the grounding lead, so that on one hand, the grounding device is prevented from being separated from sliding by utilizing acting forces in multiple directions, on the other hand, loose grounding leads are prevented from being close to each other and wound, the safety and effectiveness of the device are improved, and the observation and the operation are facilitated; the multi-end anti-drop grounding device can improve the disassembly and assembly efficiency of the grounding device, enables the device to be connected more stably in the grounding process, is beneficial to reducing the workload of power grid maintenance operation and improves the overall efficiency.
Drawings
FIG. 1 is a first assembly schematic of an embodiment of the present invention;
FIG. 2 is a second assembly schematic of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a winding assembly according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a mount of an embodiment of the invention;
FIG. 5 is a schematic view of an embodiment of the present invention after assembly;
FIG. 6 is a front view of the lever of the embodiment of the present invention;
FIG. 7 is a top view of an operating lever according to an embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to specific embodiments.
As shown in fig. 5, the present invention provides a multi-end anti-drop grounding device, which is mainly used for cable grounding in the power grid maintenance operation process, and includes four grounding leads (not shown) for connecting to the power transmission network, wherein the grounding leads are conductive cables and made of metal material to guide the current in the cables to the ground, and further includes a winding assembly for winding and unwinding the grounding leads, a mounting base for connecting and fixing the winding assembly, and an operating rod for controlling the winding assembly to wind and unwind; the detailed structure thereof will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the winding assembly is mainly used for winding and unwinding the ground wire, and includes a first turbine worm group 1, a second turbine worm group 2 and a third turbine worm group 3, where the first turbine worm group 1 is composed of a first turbine 10 and a first worm 11, the second turbine worm group 2 is composed of a second turbine 20 and a second worm 21, and the third turbine worm group 3 is composed of a third turbine 30 and a third worm 31; the worms in the three worm gear sets are coaxial and arranged along the vertical direction, the worms in the three worm gear sets are respectively provided with a first connecting rod 12, a second connecting rod 22 and a third connecting rod 32 which extend downwards, the diameter of the first connecting rod 12 is smaller than that of the first worm 11, the diameter of the second connecting rod 22 is smaller than that of the second worm 21, and the diameter of the third connecting rod 32 is smaller than that of the third worm 31; wherein, the third worm 31 and the third connecting rod 32 are provided with a third mounting hole 33 with a diameter matched with that of the second connecting rod 22, so that the second connecting rod 22 can be rotatably inserted into the third mounting hole 33, and the second worm 21 and the second connecting rod 22 are provided with a second mounting hole 23 with a diameter matched with that of the first connecting rod 12, so that the first connecting rod 12 can be rotatably inserted into the second mounting hole 23; it is easy to know that the above-mentioned worm and gear assembly and the corresponding fixing structure described later should include a connecting member such as a support bearing to complete the whole structure, and the connecting member has the same structure and use as the connecting member in the prior art, and is not described herein again, and the connecting member includes, but is not limited to, a bearing for supporting each shaft part, a connecting member for connecting each shaft part, a snap spring for limiting the position of the part, and the like.
The winding assembly further comprises a plurality of winding wheels, the first worm wheel 10 extends out of the rotating shafts from the axis position to two sides along the axis direction, the second worm and the third worm extend out of the rotating shafts from the axis position along the direction perpendicular to the two arms of the U-shaped frame, the winding wheels 5a, 5b, 5c and 5d are arranged on the four rotating shafts, and the winding wheels are sleeved on the rotating shafts and rotate along with the worm wheel 20, the worm wheel 10 and the worm wheel 30 respectively; one end of each of the four grounding leads is fixed on the winding wheel, and the grounding leads can be wound on the winding wheel along with the rotation of the winding wheel; the other end of the grounding lead is provided with a hook capable of hooking the cable; the winding wheel is used for winding and unwinding the grounding conductor, the free end of the grounding conductor is firstly hung on the cable in the using process, then the turbine is controlled to rotate, the winding wheel is driven to rotate to enable the grounding conductor to contract, the grounding conductor is enabled to be stretched from sag, and the grounding conductor is kept in a continuous tensioning state by utilizing the pulling of the power transmission conductor, so that the occurrence of accidents of various adverse factors such as hanging failure, hanging point sliding, grounding conductor falling and the like can be effectively prevented.
As shown in fig. 4 and 5, the mounting seat is used for keeping the structure of the whole device stable and simultaneously facilitating the control of the winding and unwinding of the grounding wire, and specifically comprises a connecting cylinder 40 at the lowest end, wherein the connecting cylinder 40 is used for mounting and fixing a linkage at the lower end of the worm and is also used for controlling each connecting rod by an operating rod during operation. The inner diameter of the connecting cylinder 40 is matched with the third connecting rod 32 so that the third connecting rod 32 can be rotatably inserted into the connecting cylinder 40, the upper end of the connecting cylinder is provided with a support frame, and the support frame comprises a first support lug 41 arranged between the lower end surface of the first worm and the upper end surface of the second worm and a second support lug 42 arranged on the lower end surface of the second worm and the upper end surface of the third worm; the first supporting lug and the second supporting lug are of flat plate structures which are horizontally arranged, a mounting hole 41a with the diameter the same as that of the first connecting rod 12 is formed in the middle of the first supporting lug 41, and a mounting hole 42a with the diameter the same as that of the second connecting rod 22 is formed in the middle of the second supporting lug 42; the support lug is used for limiting and controlling the relative position of each worm and gear assembly, simultaneously maintaining the coaxial position of each worm and supporting the basic structure, and the basic structure such as a bearing or a gasket is easy to know to be arranged between the mounting hole on the support lug and the contact surface of each connecting rod or worm so as to keep smooth actions such as rotation and the like.
The support frame further comprises a U-shaped frame, the bottom edge 43 of the U-shaped frame is plate-shaped and is connected with the connecting cylinder 40, the bottom edge 43 is provided with a mounting hole 43a so that the third connecting rod 32 can be inserted into the connecting cylinder 40 through the mounting hole 43a, and the first support lug 41 and the second support lug 42 are respectively connected to the inner wall of the U-shaped frame; mounting holes 43b for mounting the turbine are further formed in the two arms of the U-shaped frame; the support frame is used for keeping the relative position relation of each structure, makes each part connect and becomes a whole, protects inner structure.
The lower end of the first connecting rod 12 is hollow, the lower ends of the first connecting rod 12 and the second connecting rod 22 are respectively provided with notches 12-1 and 22-1, the top end of the operating rod 6 is provided with a connecting column, the top end of the connecting column is provided with a first step shaft 61 and a second step shaft 62, the outer diameter of the first step shaft 61 is matched with the hollow part of the first connecting rod 12, the outer diameter of the second step shaft 62 is matched with the second connecting rod 22, the outer parts of the first step shaft 61 and the second step shaft 62 are provided with operating lugs 611 and 621 protruding out of the shaft surfaces of the steps, and the operating lugs 611 and 621 can be respectively inserted into the notches 12-1 and 22-1 on the first connecting rod 12 and the second connecting rod 22 to respectively control the first worm 11 and the second worm 21.
Further, the second worm wheel 20 and the third worm wheel 30 are axially parallel, the rotating shafts of the second worm wheel 20 and the third worm wheel 30 are positioned on the same side of the U-shaped frame and extend out of the wall of one side of the U-shaped frame, the U-shaped frame is provided with supporting seats (44a and 44b) on the side, the supporting seats are of a cylindrical structure and are used for supporting the reel and the rotating shafts, and the outer ends of the supporting seats are provided with mounting holes 44c used for fixing the rotating shafts.
Still include the closed shell 7, the closed shell cover is established outside the mount pad, and the top of closed shell 7 is provided with four pin holes, and ground lead stretches out from the pin hole, and the diameter of pin hole slightly is lighter than the couple size in order to prevent that the couple from being drawn into inside the closed shell. The closed shell 7 is used for preventing that the outer impurity from getting into inner structure such as turbine worm subassembly leads to the card to die and avoid ground lead to collude improper position and lead to unable operation, seals through using the shell with each structure to and lead wire hole restriction ground lead's the position of wearing out, guarantee the smooth and easy of action operation, reduce and block, prevent that ground lead from being drawn into inside.
As shown in fig. 6 and 7, a third step shaft 63 is further disposed at the top end of the connecting column below the second step shaft 62, the outer diameter of the third step shaft 63 matches the inner diameter of the third connecting rod, a notch is disposed at the lower end of the third connecting rod, and a third operating lug 631 capable of being inserted into the notch is correspondingly disposed on the third step shaft 63; the widest dimension of the first operating lug 611 is smaller than the inner diameter of the second connecting rod 22, and the widest dimension of the second operating lug 621 is smaller than the inner diameter of the third connecting rod 32; the top end of the first step shaft 61 is provided with a rotating cap 610, the top end of the second step shaft is provided with a connecting shaft, the rotating cap is sleeved on the connecting shaft, and the connecting shaft and the rotating cap are connected through a ratchet wheel. Specifically, the top end of the connecting shaft is provided with a ratchet 80, the inner wall of the rotating cap 610 is provided with a control handle 81, and the control handle 81 is matched with the ratchet 80 so as to enable the rotating cap 610 to rotate in one direction. The ratchet structure can prevent the arranged winding wheel from rewinding in the process of sequentially tightening the winding wheel, and the operation steps of the operating rod are simplified. Utilize the connection or the disconnection of operation ear, can realize turbine assembly's rotation control, after setting for suitable operation ear interval, can be through reciprocating the action bars in order to realize the control in proper order to different turbines, and then tighten up ground lead in proper order.
The lower extreme of action bars is provided with the bulge, and the lower extreme of connecting cylinder is provided with first bayonet socket, and the bulge can agree with each other with first bayonet socket in order to prevent that the action bars from rotating after the action bars rises to the top.
Still include extension bar 9, the lower extreme of action bars 6 is provided with bayonet socket 60, and the top of extension bar is provided with bayonet socket 90, bayonet socket 90 and bayonet socket 60 swing joint. Bayonet socket and bayonet socket are mainly be convenient for utilize the extension bar to control action bars 60, make bayonet socket and bayonet connection when using, use extension bar control action bars rotation to realize tightening up or unclamping, the length of action bars can be shortened to the utilization extension bar, can take off the extension bar after earthing device is fixed, make the device unsettled, avoid other people to operate it or touch, reduce human factor's interference, the security is improved, simultaneously can be according to the extension bar that highly sets up a plurality of different length of use at will, and then use this equipment to realize the earthing task of not co-altitude cable, improve equipment commonality, and use cost is reduced.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A multi-end anti-drop grounding device is characterized by comprising four grounding leads for connecting a power transmission network, a winding assembly for winding and unwinding the grounding leads, a mounting seat for connecting and fixing the winding assembly and an operating rod for controlling the winding assembly to wind and unwind;
the winding assembly comprises a first turbine worm group, a second turbine worm group and a third turbine worm group, the first turbine worm group consists of a first turbine and a first worm, the second turbine worm group consists of a second turbine and a second worm, and the third turbine worm group consists of a third turbine and a third worm; the worms in the three worm wheel and worm rod groups are coaxial and arranged along the vertical direction, the worms in the three worm wheel and worm rod groups are respectively provided with a first connecting rod, a second connecting rod and a third connecting rod which extend downwards, the diameter of the first connecting rod is smaller than that of the first worm, the diameter of the second connecting rod is smaller than that of the second worm, and the diameter of the third connecting rod is smaller than that of the third worm; the third worm and the third connecting rod are provided with third mounting holes with the diameters matched with the diameters of the second connecting rod, so that the second connecting rod can be rotatably inserted into the third mounting holes;
the mounting seat comprises a connecting cylinder at the lowest end, the inner diameter of the connecting cylinder is matched with the third connecting rod so that the third connecting rod can be rotatably inserted into the connecting cylinder, a supporting frame is arranged at the upper end of the connecting cylinder, and the supporting frame comprises a first supporting lug arranged between the lower end surface of the first worm and the upper end surface of the second worm and a second supporting lug arranged on the lower end surface of the second worm and the upper end surface of the third worm; the first support lug and the second support lug are of flat plate structures which are horizontally arranged, a mounting hole with the diameter the same as that of the first connecting rod is arranged in the middle of the first support lug, and a mounting hole with the diameter the same as that of the second connecting rod is arranged in the middle of the second support lug; the supporting frame also comprises a U-shaped frame, the bottom edge of the U-shaped frame is plate-shaped and is connected with the connecting cylinder, the bottom edge is provided with a mounting hole so that a third connecting rod can pass through the mounting hole and be inserted into the connecting cylinder, and the first supporting lug and the second supporting lug are respectively connected to the inner wall of the U-shaped frame; mounting holes for mounting the turbine are further formed in the two arms of the U-shaped frame;
the winding assembly further comprises a plurality of winding wheels, the first worm wheel extends out of the rotating shafts from the axis position to two sides along the axis direction, the second worm and the third worm extend out of the rotating shafts from the axis position along the direction perpendicular to the two arms of the U-shaped frame, the four rotating shafts are respectively provided with the winding wheels, and the winding wheels are sleeved on the rotating shafts and rotate along with the worm wheels;
one ends of the four grounding leads are fixed on the winding wheel, and the grounding leads can be wound on the winding wheel along with the rotation of the winding wheel; the other end of the grounding lead is provided with a hook capable of hooking the cable;
the lower end of the first connecting rod is hollow, the lower ends of the first connecting rod and the second connecting rod are respectively provided with a notch, the top end of the operating rod is provided with a connecting column, the top end of the connecting column is provided with a first step shaft and a second step shaft, the outer diameter of the first step shaft is matched with the hollow part of the first connecting rod, the outer diameter of the second step shaft is matched with the second connecting rod, the outer parts of the first step shaft and the second step shaft are provided with operating lugs protruding out of the shaft surface of the step shaft, and the operating lugs can be respectively inserted into the notches on the first connecting rod and the second connecting rod to respectively control the first worm and the second worm;
the grounding wire is electrically connected with the four grounding leads respectively, and the grounding wire extends out of the mounting seat.
2. The multi-end anti-drop grounding device according to claim 1, wherein the central axes of the second turbine and the third turbine are parallel, the rotating shafts of the second turbine and the third turbine are located on the same side of the U-shaped frame and extend out from the wall of one side of the U-shaped frame, the U-shaped frame is provided with a supporting seat on the side, the supporting seat is of a cylindrical structure to support the reel and the rotating shaft, and the outer end of the supporting seat is provided with a mounting hole for fixing the rotating shaft.
3. The multi-end anti-drop grounding device according to claim 1, further comprising a sealing shell, wherein the sealing shell is sleeved outside the mounting seat, four lead holes are arranged at the top end of the sealing shell, the grounding lead extends out of the lead holes, and the diameter of the lead holes is slightly smaller than the size of the hook so as to prevent the hook from being involved inside the sealing shell.
4. The multi-end anti-drop grounding device according to claim 1, wherein a third step shaft is further provided at the top end of the connecting column below the second step shaft, the outer diameter of the third step shaft matches with the inner diameter of a third connecting rod, a notch is provided at the lower end of the third connecting rod, and a third operating lug capable of being inserted into the notch is correspondingly provided on the third step shaft; the widest part of the first operating lug is smaller than the inner diameter of the second connecting rod, and the widest part of the second operating lug is smaller than the inner diameter of the third connecting rod; the top end of the first step shaft is provided with a rotating cap, the top end of the second step shaft is provided with a connecting shaft, the rotating cap is sleeved on the connecting shaft, and the connecting shaft and the rotating cap are connected through a ratchet wheel.
5. The multi-end anti-drop grounding device according to claim 4, wherein a ratchet wheel is arranged at the top end of the connecting shaft, a control handle is arranged on the inner wall of the rotating cap, and the control handle is matched with the ratchet wheel to enable the rotating cap to rotate in a single direction.
6. The multi-end anti-slip grounding device according to claim 1, wherein the lower end of the operating rod is provided with a protrusion, the lower end of the connecting cylinder is provided with a first bayonet, and the protrusion and the first bayonet can be engaged with each other to prevent the operating rod from rotating after the operating rod is lifted to the top end.
7. The multi-end anti-drop grounding device according to claim 1, further comprising an extension bar, wherein the lower end of the operating bar is provided with a bayonet, the top end of the extension bar is provided with a buckle, and the buckle is movably connected with the bayonet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757962.XA CN109037985B (en) | 2018-07-11 | 2018-07-11 | Multi-end anticreep earthing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757962.XA CN109037985B (en) | 2018-07-11 | 2018-07-11 | Multi-end anticreep earthing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109037985A CN109037985A (en) | 2018-12-18 |
| CN109037985B true CN109037985B (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810757962.XA Active CN109037985B (en) | 2018-07-11 | 2018-07-11 | Multi-end anticreep earthing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201032675Y (en) * | 2007-03-13 | 2008-03-05 | 马鞍山市双益机械制造有限公司 | Signal cable wound roll |
| CN201766329U (en) * | 2010-07-01 | 2011-03-16 | 上海市电力公司超高压输变电公司 | Tightening device for line stringing |
| US9088197B2 (en) * | 2011-09-07 | 2015-07-21 | General Electric Company | Shaft grounding system |
| CN205602825U (en) * | 2016-05-04 | 2016-09-28 | 重庆港乾机械有限公司 | Not intact wheeled spooler of full -tooth |
| CN207536915U (en) * | 2017-11-27 | 2018-06-26 | 佛山市荣鑫宝数控设备有限公司 | General winding box |
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| CN109037985A (en) | 2018-12-18 |
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