CN209948098U - Cable overhauls earthing tool - Google Patents
Cable overhauls earthing tool Download PDFInfo
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- CN209948098U CN209948098U CN201920796941.9U CN201920796941U CN209948098U CN 209948098 U CN209948098 U CN 209948098U CN 201920796941 U CN201920796941 U CN 201920796941U CN 209948098 U CN209948098 U CN 209948098U
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- hole
- grounding
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Abstract
The utility model discloses a cable maintenance grounding tool, which comprises a jaw, an insulating rod, a grounding wire and a grounding rod; the jaw is provided with a grounding wire leading-out end, one end of the grounding wire is connected with the jaw through the grounding wire leading-out end, and the other end of the grounding wire is connected with the grounding rod. Set up on keeping silent and test electric part, can realize testing electric back joint earlier on the one hand, prevent electrified joint, on the other hand sustainable monitoring cable electrified condition in the use, and set up current transformer on the earth connection, can monitor the earth connection current condition simultaneously, through the electrified condition on comparison cable and the earth connection, can lean on real cable ground connection situation, when ground fault, can report to the police and remind the staff.
Description
Technical Field
The utility model relates to a grounding device, concretely relates to cable maintenance grounding tool.
Background
The grounding tool is necessary equipment in power construction, and the power equipment needs to be grounded in the construction process so as to avoid equipment damage or endanger the personal safety of workers. Especially, when the cable overhauls, the earth connection of cable can break down sometimes, but overhauls and need reliably ground connection to the cable, therefore this scheme provides a neotype grounding tool that can reliably ground connection to the cable.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a novel cable repair grounding tool.
The technical scheme of the utility model is that: a cable service grounding tool comprising: the clamp comprises a jaw (101), an insulating rod (301), a grounding wire (201) and a grounding rod (401); a grounding wire leading-out end is arranged on the jaw (101), one end of a grounding wire (201) is connected with the jaw (101) through the grounding wire leading-out end, and the other end of the grounding wire is connected with a grounding rod (401);
the jaw (101) comprises an upper end plate (110), a lower end plate (140), a side plate (120) and a moving plate (130); the upper end plate (110) is arranged at the upper end of the side plate (120), and the lower end plate (140) is arranged at the lower end of the side plate (120); the inner side surface of the side plate (120) is provided with a slide rail; one side of the moving plate (130) is connected with the side plate (120) in a sliding way through a sliding rail;
the upper end plate (110) comprises an upper clamping part (115) and an upper electricity testing part (111), the upper clamping part (115) and the upper electricity testing part (111) form a ladder shape, and the upper electricity testing part (111) is higher than the upper clamping part (115);
the moving plate (130) comprises a lower clamping portion (138) and a lower electroscopic portion (132), the lower clamping portion (138) and the lower electroscopic portion (132) form a ladder shape, and the upper electroscopic portion (111) is lower than the upper clamping portion (115);
a first limiting rod (1341) is arranged on the lower electroscopic part (132), a first through hole is arranged on the lower clamping part (138), and the lower clamping part (138) is sleeved on the first limiting rod (1341) through the first through hole;
clamping grooves (113) are formed in the upper clamping portion (115) and the lower clamping portion (138); an upper mutual inductance iron core (114) is arranged on the upper electricity testing part (111), and a lower mutual inductance iron core (133) matched with the upper mutual inductance iron core (114) is arranged on the lower electricity testing part (132);
a second through hole positioned below the lower clamping part (138) and a third through hole positioned below the lower electroscopic part (132) are arranged on the lower end plate (140); the lower end of the lower clamping part (138) is connected with a first supporting rod (1361), and the first supporting rod (1361) penetrates through the second through hole and is in threaded connection with the second through hole; the lower end of the first supporting rod (1361) is connected with a cross rod (139); a supporting tube (137) is arranged at the lower end of the cross rod (139), a fourth through hole is formed in the cross rod (139), and the fourth through hole is communicated with the supporting tube (137); the fourth through hole is positioned right below the third through hole;
the insulation rod (301) is detachably clamped with the support tube (137), the insulation rod (301) is of a hollow structure, a movable rod (320) is inserted into the hollow structure, the lower end of the movable rod (320) is connected with a handle (310) extending out of the insulation rod (301), and a handle sliding clamping groove (330) is formed in the insulation rod (301); when the movable rod (320) moves upwards, the movable rod passes through the supporting tube (137) and the third through hole to abut against the lower electroscopic part (132);
further comprising: the current detection device comprises a current detection wire, a signal conditioning circuit, a first controller, a first alarm, a first wireless communication module and a second wireless communication module; a current detection lead is wound on the lower mutual inductance iron core (133), the current detection lead is electrically connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is electrically connected with the input end of the first controller, and the output end of the first controller is electrically connected with the first alarm; the first wireless communication module and the second wireless communication module are respectively and electrically connected with the first controller;
further comprising: the current transformer, the second controller, the display screen (410) and the second alarm (411); the current transformer is arranged on the grounding wire (201) and is electrically connected with the first controller; the second controller, the display screen (410) and the second alarm (411) are arranged on the grounding rod (401); the display screen (410) and the second alarm (411) are respectively and electrically connected with the second controller; the second controller wirelessly communicates with the first controller through the first wireless communication module.
Further, the upper end plate (110) further comprises an upper reinforcing part (112); the upper reinforcing part (112) and the upper clamping part (115) are symmetrically arranged at two sides of the upper electroscope part (111);
the moving plate (130) further comprises a lower reinforcing part (131); the lower reinforcing part (131) and the lower clamping part (138) are symmetrically arranged at two sides of the lower electroscopic part (132);
the upper reinforcing part (112) and the lower reinforcing part (131) are both provided with clamping grooves (113).
Furthermore, a second limiting rod (134) is further arranged on the lower electricity testing part (132), a fifth through hole is formed in the lower reinforcing part (131), and the lower fixing part is sleeved on the second limiting rod (134) through the fifth through hole.
Furthermore, a sixth through hole positioned below the lower reinforcing part (131) is also formed in the lower end plate (140);
the lower end of the lower reinforcing part (131) is connected with a second supporting rod (136), and the second supporting rod (136) penetrates through the sixth through hole and is in threaded connection with the sixth through hole; the lower end of the second supporting rod (136) is connected with a cross rod (139).
Furthermore, the first limiting rod (1341) and the second limiting rod (134) are both provided with limiting snap rings (135).
Furthermore, a third limiting rod and a fourth limiting rod (141) are further arranged on the lower end plate (140), a seventh through hole is further formed in the lower clamping portion (138), and an eighth through hole is further formed in the lower reinforcing portion (131); the lower clamping portion (138) penetrates through the third limiting rod through the seventh through hole in a sleeved mode, and the lower reinforcing portion (131) penetrates through the fourth limiting rod (141) through the eighth through hole in a sleeved mode.
The utility model provides a cable repair earthing tool sets up on keeping silent and tests electric part, can realize testing electric back joint earlier on the one hand, prevents electrified joint, and on the other hand sustainable monitoring cable electrified condition in the use, and set up current transformer on the earth connection, can monitor the earth connection current condition simultaneously, through the electrified condition on comparison cable and the earth connection, can lean on real cable ground connection situation, when ground fault, can report to the police and remind the staff.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of an upper end plate and a moving plate according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of an insulation rod according to an embodiment of the present invention.
In the figure, 101-jaw, 201-ground wire, 301-insulating rod, 110-upper end plate, 120-side plate, 130-moving plate, 140-lower end plate, 111-upper electricity testing part, 112-upper reinforcing part, 113-clamping groove, 114-upper mutual inductor, 115-upper clamping part, 131-lower reinforcing part, 132-lower electricity testing part, 133-lower mutual inductor, 1341-first limiting rod, 134-second limiting rod, 135-limiting clamping ring, 1361-first supporting rod, 136-second supporting rod, 137-supporting tube, 138-lower clamping part, 139-cross rod, 141-fourth limiting rod, 310-handle, 320-movable rod, 330-handle sliding clamping groove, 401-ground rod, 410-display screen, 411-second alarm.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
As shown in fig. 1 to 3, the cable repair grounding tool provided by the present embodiment structurally includes a jaw 101, an insulating rod 301, a grounding wire 201 and a grounding rod 401; the jaw 101 is provided with a grounding wire leading-out end, one end of a grounding wire 201 is connected with the jaw 101 through the grounding wire leading-out end, and the other end is connected with a grounding rod 401. The jaw 101 is clamped with the power equipment, the grounding wire 201 is connected with the jaw 101, and the grounding rod 401 is grounded, so that the power equipment is grounded.
In this embodiment, the jaw 101 includes an upper end plate 110, a lower end plate 140, a side plate 120, and a moving plate 130; the upper end plate 110 is arranged at the upper end of the side plate 120, and the lower end plate 140 is arranged at the lower end of the side plate 120; a slide rail is arranged on the inner side surface of the side plate 120; one side of the moving plate 130 is slidably connected with the side plate 120 through a sliding rail, the moving plate 130 can slide up and down along the side plate 120, in order to enhance the stability, a limiting rod can be arranged on the lower end plate 140, and the moving plate 130 is sleeved on the limiting rod and slides along the limiting rod.
The jaw 101 of this embodiment is further provided with an electricity testing function to check whether the power equipment is electrified or not, and if so, stop the moving plate 130 to continue moving, and avoid contacting the cable again to cause injury to personnel. Specifically, the upper end plate 110 includes an upper clamping portion 115 and an upper electroscope portion 111, the upper clamping portion 115 and the upper electroscope portion 111 form a step shape, and the upper electroscope portion 111 is higher than the upper clamping portion 115. The moving plate 130 includes a lower clamping portion 138 and a lower electroscope portion 132, the lower clamping portion 138 and the lower electroscope portion 132 form a step shape, and the upper electroscope portion 111 is lower than the upper clamping portion 115. The upper clamping portion 115 and the lower clamping portion 138 are both provided with clamping grooves 113 for clamping cables. The upper electricity testing part 111 is provided with an upper mutual inductance iron core 114, the lower electricity testing part 132 is provided with a lower mutual inductance iron core 133 matched with the upper mutual inductance iron core 114, the upper mutual inductance iron core 114 and the lower mutual inductance iron core 133 are arc-shaped, and a mutual inductor is formed after buckling.
For realizing the free activity of keeping silent 101, realize testing electricity earlier the joint, avoid electrified ground connection, the device still sets up following specific structure: be provided with first gag lever post 1341 on the electroscope portion 132 down, be provided with first through-hole on the lower joint portion 138, lower joint portion 138 passes through first through-hole cover and wears on first gag lever post 1341 to when the electroscope portion 132 can't rise under the realization, lower joint portion 138 can continue to rise. The lower end plate 140 is provided with a second through hole positioned below the lower clamping portion 138 and a third through hole positioned below the lower electroscopic portion 132; the lower end of the lower clamping part 138 is connected with a first support rod 1361, and the first support rod 1361 penetrates through the second through hole and is in threaded connection with the second through hole; the lower end of the first supporting rod 1361 is connected with a cross rod 139; the lower end of the cross bar 139 is provided with a support tube 137, and the cross bar 139 is provided with a fourth through hole which is communicated with the support tube 137; the fourth through hole is positioned right below the third through hole. The insulating rod 301 is detachably clamped with the supporting tube 137, the insulating rod 301 is of a hollow structure, a movable rod 320 is inserted into the hollow structure, the lower end of the movable rod 320 is connected with a handle 310 extending out of the insulating rod 301, and a handle sliding clamping groove 330 is formed in the insulating rod 301; when the movable rod 320 moves upward, it passes through the support tube 137 and the third through hole to abut against the lower electroscope 132.
In addition, for the convenience of use and further improving the stability of the device, the upper end plate 110 further includes an upper reinforcement part 112; the upper reinforcing part 112 and the upper clamping part 115 are symmetrically arranged at two sides of the upper electroscope part 111; the moving plate 130 further includes a lower reinforcement portion 131; the lower reinforcing part 131 and the lower clamping part 138 are symmetrically arranged at two sides of the lower electroscopic part 132. The upper reinforcing part 112 and the lower reinforcing part 131 are both provided with clamping grooves 113 for clamping the power equipment. Still be provided with second gag lever post 134 on the electricity portion 132 of testing down, be provided with the fifth through-hole on the lower reinforcing portion 131, lower fixed part passes through the fifth through-hole cover and wears on second gag lever post 134. The lower end plate 140 is further provided with a sixth through hole located below the lower reinforcing part 131; the lower end of the lower reinforcing part 131 is connected with a second supporting rod 136, and the second supporting rod 136 passes through the sixth through hole and is in threaded connection with the sixth through hole; the lower end of the second support bar 136 is connected to a cross bar 139. The lower end plate 140 is further provided with a third limiting rod and a fourth limiting rod 141, the lower clamping portion 138 is further provided with a seventh through hole, and the lower reinforcing portion 131 is further provided with an eighth through hole; the lower clamping portion 138 penetrates through the third limiting rod through the seventh through hole, and the lower reinforcing portion 131 penetrates through the fourth limiting rod 141 through the eighth through hole. Jaw 101 forms symmetrical structure, and the electricity testing position of installing the mutual-inductor is located the centre, both sides card line, and movable plate 130 slides along third gag lever post and fourth gag lever post 141, has strengthened the steadiness that jaw 101 used.
In this embodiment, still all be provided with spacing snap ring 135 on first gag lever post 1341 and the second gag lever post 134, when joint portion and reinforcement portion joint were on power equipment, it was fixed to guarantee to test electric portion, and the mutual-inductor lasts the electrified condition of inspection power equipment, in case mistake is electrified.
The embodiment also comprises a current detection lead, a signal conditioning circuit, a first controller and a first alarm. The current detection wire is wound on the lower mutual inductor 133, the current detection wire is electrically connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is electrically connected with the input end of the first controller, the output end of the first controller is electrically connected with the first alarm, when the power equipment passes through the mutual inductor and is electrified, current is generated on the current detection wire, the current is conditioned by the signal conditioning circuit and then transmitted into the first controller, and the first controller controls the first alarm to remind a worker of stopping. The first controller is also connected with a first wireless communication module and a second wireless communication module, and the first controller is communicated with the background through the second wireless communication module and transmits the alarm signal to the background.
In this embodiment, a current transformer, a second controller, a display screen 410, and a second alarm 411 are further provided. The current transformer is arranged on the grounding wire 201 and electrically connected with the first controller, the current transformer is used for detecting the current on the grounding wire 201, the first controller compares the current on the cable with the current on the grounding wire 201, when the cable is electrified and the grounding wire 201 is not electrified, the grounding fault is explained, and the current on the grounding wire 201 is not only detected, so that the accuracy of grounding detection is ensured.
The second controller, the display screen 410 and the second alarm 411 are arranged on the grounding rod 401; the display screen 410 and the second alarm 411 are respectively and electrically connected with the second controller; the second controller wirelessly communicates with the first controller through the first wireless communication module. The first controller transmits the current of the cable and the earth wire to the second controller, the second controller controls the current to be displayed on the display screen 410, and when the earth fault occurs, an alarm signal is transmitted to the second controller to control the second alarm 411 to alarm.
The first controller and the second controller may use controllers commonly used in the art.
The working principle of the tool is as follows: the insulation rod 301 is clamped with the support tube 137, the movable rod 320 is pushed upwards to abut against the lower electroscope 132, the upper clamping part 115 and the upper reinforcing part 112 of the upper end plate 110 are clamped with the cable, and simultaneously the upper mutual inductance iron core 114 of the upper electroscope 111 strides over the cable. By rotating the insulating rod 301, the first support bar 1361, the second support bar 136 and the movable bar 320 simultaneously push the lower clamping portion 138, the lower reinforcing portion 131 and the lower electroscopic portion 132 upward. In design, it is ensured that the lower transformer core 133 is first fastened to the upper transformer core 114, and at this time, the lower fastening portion 138 and the lower reinforcing portion 131 are not yet in contact with the cable. If the cable is electrified, the current is sensed by a mutual inductor consisting of the upper mutual inductor core 133 and the lower mutual inductor core 133, the first controller controls the first alarm to give an alarm, the worker is reminded to stop acting, and the electrified clamping of the cable is avoided. If the cable is not electrified, when the upper and lower transformer cores 133 are buckled, the upper and lower transformer cores 133 abut against each other, and the insulation rod 301 is rotated to stop pushing the moving plate 130, and at this time, the moving rod 320 is moved downward to stop abutting against the lower voltage testing part 132. The lower electroscope portion 132 moves downward, and the position-limiting clasps 135 on the first position-limiting rod 1341 and the second position-limiting rod 134 make the lower clamping portion 138 and the lower reinforcement portion 131 lift the lower electroscope portion 132. Continuing to rotate the insulating rod 301, the first supporting rod 1361 and the second supporting rod 136 simultaneously push the lower clamping portion 138 and the lower reinforcing portion 131 upward, and simultaneously drive the lower electroscopic portion 132 to move upward. When the lower clamping portion 138 and the lower reinforcing portion 131 clamp the cable, the upper mutual inductance iron core 133 and the lower mutual inductance iron core 133 are buckled again to continuously monitor the electrification condition of the power equipment. When disassembling, the insulation rod 301 is rotated reversely. In the maintenance process, the cable can be electrified, the current transformer detects the current on the grounding wire and transmits the current to the first controller, the first controller compares the current of the cable and the current of the grounding wire, the detected value is transmitted to the second controller to be displayed on the display screen 410, and when the grounding wire fails, the second alarm 411 gives an alarm.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any person skilled in the art can think of the inventive changes, and several improvements and decorations made without departing from the principle of the present invention should fall within the protection scope of the present invention.
Claims (6)
1. A cable repair grounding tool, comprising: the clamp comprises a jaw (101), an insulating rod (301), a grounding wire (201) and a grounding rod (401); a grounding wire leading-out end is arranged on the jaw (101), one end of a grounding wire (201) is connected with the jaw (101) through the grounding wire leading-out end, and the other end of the grounding wire is connected with a grounding rod (401);
the jaw (101) comprises an upper end plate (110), a lower end plate (140), a side plate (120) and a moving plate (130); the upper end plate (110) is arranged at the upper end of the side plate (120), and the lower end plate (140) is arranged at the lower end of the side plate (120); the inner side surface of the side plate (120) is provided with a slide rail; one side of the moving plate (130) is connected with the side plate (120) in a sliding way through a sliding rail;
the upper end plate (110) comprises an upper clamping part (115) and an upper electricity testing part (111), the upper clamping part (115) and the upper electricity testing part (111) form a ladder shape, and the upper electricity testing part (111) is higher than the upper clamping part (115);
the moving plate (130) comprises a lower clamping portion (138) and a lower electroscopic portion (132), the lower clamping portion (138) and the lower electroscopic portion (132) form a ladder shape, and the upper electroscopic portion (111) is lower than the upper clamping portion (115);
a first limiting rod (1341) is arranged on the lower electroscopic part (132), a first through hole is arranged on the lower clamping part (138), and the lower clamping part (138) is sleeved on the first limiting rod (1341) through the first through hole;
clamping grooves (113) are formed in the upper clamping portion (115) and the lower clamping portion (138); an upper mutual inductance iron core (114) is arranged on the upper electricity testing part (111), and a lower mutual inductance iron core (133) matched with the upper mutual inductance iron core (114) is arranged on the lower electricity testing part (132);
a second through hole positioned below the lower clamping part (138) and a third through hole positioned below the lower electroscopic part (132) are arranged on the lower end plate (140); the lower end of the lower clamping part (138) is connected with a first supporting rod (1361), and the first supporting rod (1361) penetrates through the second through hole and is in threaded connection with the second through hole; the lower end of the first supporting rod (1361) is connected with a cross rod (139); a supporting tube (137) is arranged at the lower end of the cross rod (139), a fourth through hole is formed in the cross rod (139), and the fourth through hole is communicated with the supporting tube (137); the fourth through hole is positioned right below the third through hole; the insulation rod (301) is detachably clamped with the support tube (137), the insulation rod (301) is of a hollow structure, a movable rod (320) is inserted into the hollow structure, the lower end of the movable rod (320) is connected with a handle (310) extending out of the insulation rod (301), and a handle sliding clamping groove (330) is formed in the insulation rod (301); when the movable rod (320) moves upwards, the movable rod passes through the supporting tube (137) and the third through hole to abut against the lower electroscopic part (132);
further comprising: the current detection device comprises a current detection wire, a signal conditioning circuit, a first controller, a first alarm, a first wireless communication module and a second wireless communication module; a current detection lead is wound on the lower mutual inductance iron core (133), the current detection lead is electrically connected with the input end of the signal conditioning circuit, the output end of the signal conditioning circuit is electrically connected with the input end of the first controller, and the output end of the first controller is electrically connected with the first alarm; the first wireless communication module and the second wireless communication module are respectively and electrically connected with the first controller;
further comprising: the current transformer, the second controller, the display screen (410) and the second alarm (411); the current transformer is arranged on the grounding wire (201) and is electrically connected with the first controller; the second controller, the display screen (410) and the second alarm (411) are arranged on the grounding rod (401); the display screen (410) and the second alarm (411) are respectively and electrically connected with the second controller; the second controller wirelessly communicates with the first controller through the first wireless communication module.
2. Cable service grounding tool according to claim 1, characterized in that the upper end plate (110) further comprises an upper reinforcement (112); the upper reinforcing part (112) and the upper clamping part (115) are symmetrically arranged at two sides of the upper electroscope part (111);
the moving plate (130) further comprises a lower reinforcing part (131); the lower reinforcing part (131) and the lower clamping part (138) are symmetrically arranged at two sides of the lower electroscopic part (132);
the upper reinforcing part (112) and the lower reinforcing part (131) are both provided with clamping grooves (113).
3. The cable repair grounding tool according to claim 2, wherein a second limiting rod (134) is further disposed on the lower electroscopic portion (132), a fifth through hole is disposed on the lower reinforcing portion (131), and the lower fixing portion is sleeved on the second limiting rod (134) through the fifth through hole.
4. Cable service grounding tool according to claim 3, characterized in that the lower end plate (140) is further provided with a sixth through hole below the lower reinforcement (131);
the lower end of the lower reinforcing part (131) is connected with a second supporting rod (136), and the second supporting rod (136) penetrates through the sixth through hole and is in threaded connection with the sixth through hole; the lower end of the second supporting rod (136) is connected with a cross rod (139).
5. Cable service grounding tool according to claim 3, characterized in that a limiting snap ring (135) is provided on both the first limiting rod (1341) and the second limiting rod (134).
6. The cable maintenance grounding tool according to claim 2, wherein a third limiting rod and a fourth limiting rod (141) are further arranged on the lower end plate (140), a seventh through hole is further arranged on the lower clamping portion (138), and an eighth through hole is further arranged on the lower reinforcing portion (131); the lower clamping portion (138) penetrates through the third limiting rod through the seventh through hole in a sleeved mode, and the lower reinforcing portion (131) penetrates through the fourth limiting rod (141) through the eighth through hole in a sleeved mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920796941.9U CN209948098U (en) | 2019-05-30 | 2019-05-30 | Cable overhauls earthing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920796941.9U CN209948098U (en) | 2019-05-30 | 2019-05-30 | Cable overhauls earthing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209948098U true CN209948098U (en) | 2020-01-14 |
Family
ID=69134739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920796941.9U Expired - Fee Related CN209948098U (en) | 2019-05-30 | 2019-05-30 | Cable overhauls earthing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209948098U (en) |
-
2019
- 2019-05-30 CN CN201920796941.9U patent/CN209948098U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200114 Termination date: 20200530 |
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| CF01 | Termination of patent right due to non-payment of annual fee |