CN210404083U - Device for preventing Q type wiring terminal from mistakenly touching - Google Patents
Device for preventing Q type wiring terminal from mistakenly touching Download PDFInfo
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- CN210404083U CN210404083U CN201921884358.XU CN201921884358U CN210404083U CN 210404083 U CN210404083 U CN 210404083U CN 201921884358 U CN201921884358 U CN 201921884358U CN 210404083 U CN210404083 U CN 210404083U
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Abstract
The utility model discloses a device for preventing Q-type wiring terminal from mistakenly touching, which structurally comprises a hollow shell with a wire placing cavity arranged inside, wherein the hollow shell comprises a first shell and a second shell which are connected through a folding part, so that the first shell and the second shell can be unfolded/closed around the folding part; the first shell is provided with a first buckling part, and the second shell is provided with a second buckling part matched with the first buckling part so as to buckle and fix the closed first shell and the closed second shell; the wire placing cavity is communicated with the outside of the hollow shell through a plurality of wire passing holes for inserting cable cores, each group of wire passing holes penetrate through a closed gap between the closed first shell and the closed second shell, so that the wire passing holes form wire passing grooves in corresponding positions of the first shell and the second shell respectively, and the surfaces of the wire passing grooves are provided with convex ribs; the utility model discloses a prevent mistake and bump the device and can firmly fix Q type wiring, be difficult for being pulled and drop by the mistake, the practicality is wide, avoids binding post and conductor direct contact to bring the accident, safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of the cable terminal is insulating, concretely relates to prevent that Q type binding post mistake from bumping device.
Background
In view of the multiple protection maloperation and the false touch event in the system, great hidden danger is brought to the stability and the safety of the power grid. Especially, the Q-type line head is easy to cause protection misoperation due to improper insulation treatment, and switching tripping is caused by mutual series of an ac power supply and a dc power supply, so that it is necessary to develop a set of device for insulating the Q-type line head, and specific typical events are as follows:
1. 11/2017, and carrying out 5052 switch CT metering winding verification after overhauling a certain 500kV A line. A metering operation and maintenance person executes secondary safety measures on a 5052 switch CT secondary junction box, removes a related current loop, does not wrap a bare cable head with an insulating tape, and contacts a 5052 switch C-phase secondary current cable head with a door cover under the action of wind blowing, so that two points of an adjacent 500kV B line main protection current loop are grounded, and the 500kV B line main protection misoperation is caused.
2. In 2018, 6 months and 18 days, in the process of carrying out power failure maintenance work on a 500kV #2 main transformer in a certain converter station, a medium-voltage side switch 2203 of the 500kV #3 main transformer trips, and investigation shows that the event is caused by the fact that an alternating current power supply is connected into a low-voltage direct current system in series due to defect processing work of a disconnecting link at the low-voltage side 3023 of the 500kV #2 main transformer, the problems of insufficient identification of site operation risks, poor secondary terminal insulation wrapping process and the like exist, and a three-level event of power equipment for work failure misoperation is formed.
The two typical switch false tripping events are caused by improper Q-type wiring insulation treatment, so that a Q-type wiring terminal is mistakenly touched with an external conductor, and if one insulation treatment device is sleeved on a Q wire head and is not easy to fall off, the occurrence of similar accidents can be avoided.
In view of the above, it is necessary to develop a device for preventing the Q-type connection terminal from being mistakenly touched.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming of background art, provide a prevent that Q type binding post mistake from bumping device.
In order to realize the purpose, the utility model discloses a technical scheme be:
a device for preventing a Q-type wiring terminal from being touched by mistake comprises a hollow shell, wherein a wire placing cavity is formed in the hollow shell, the hollow shell comprises a first shell and a second shell which are connected through a folding part, and the first shell and the second shell can be unfolded/closed around the folding part; the first shell is provided with a first buckling part, and the second shell is provided with a second buckling part matched with the first buckling part so as to buckle and fix the closed first shell and the closed second shell;
put the wire chamber through a plurality of through wires holes and the outside intercommunication of cavity casing that are used for interlude cable conductor, and each group through wires hole all passes on the closed gap between closed first casing and the second casing and makes this through wires hole form the through wires groove respectively on the corresponding position of first casing and second casing, the through wires groove surface is equipped with protruding muscle.
Furthermore, the diameters of all the threading holes in the threading holes are different.
Furthermore, the outer surface of the hollow shell is provided with a mark part for marking different threading holes with different diameters.
Furthermore, the first buckling part comprises a buckling cavity arranged on the first shell, a cross rod is arranged in the buckling cavity, the second buckling part comprises a connecting rod vertically arranged on the second shell, and the tail end of the connecting rod is provided with a buckling elbow; when the first shell and the second shell are closed, the buckling elbow is buckled on the cross rod.
Furthermore, the hollow shell is of a cubic structure in appearance outline, and the plurality of threading holes are formed in the same surface of the cubic hollow shell.
Since the technical scheme is used, the beneficial effects of the utility model are that:
the utility model discloses prevent mistake and bump the line chamber of putting in the device and can hold multiunit Q type binding post simultaneously, be equipped with protruding muscle in the threading groove, prevent mistake after the closure and bump the device and can firmly fix Q type wiring, be difficult for pulling and drop by the mistake, the practicality is wide, avoids binding post and conductor direct contact to bring the accident, safe and reliable.
Drawings
Fig. 1 is a perspective view of the anti-collision device of the present invention after being unfolded;
fig. 2 is a top view of the anti-collision device of the present invention after being unfolded;
fig. 3 is a front view of the anti-collision device of the present invention after being unfolded;
FIG. 4 is an enlarged view of part A of FIG. 1 and part B of FIG. 2;
reference numerals: 1-hollow shell, 110-first shell, 120-second shell, 130-wire placing cavity, 140-wire threading groove, 141-convex rib, 150-marking part, 160-folding part, 170-first buckling part, 171-buckling cavity, 172-cross bar, 180-second buckling part, 181-connecting bar, 182-buckling elbow, 2-cable core wire, 210-first cable core wire, 220-second cable core wire and 230-third cable core wire.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, the device for preventing the Q-type wiring terminal from being touched by mistake is made of an insulating resin material as a whole, has a good insulating effect, structurally comprises a hollow shell 1 with a wire placing cavity 130 arranged inside, the surface of the hollow shell 1 is of a cubic structure, and the wire placing cavity 130 is of a cubic cavity; the hollow shell 1 is divided into two parts, and comprises a first shell 110 and a second shell 120 which are connected through a folding part 160, wherein the folding part 160 can be a hinge, and can also be made of flexible resin materials, in the embodiment, the folding part is made of flexible resin which is easy to fold, and the first shell 110 and the second shell 120 can be unfolded/closed around the folding part 160; two sets of first buckling parts 170 are arranged on the first shell 110, and a second buckling part 180 matched with the two sets of first buckling parts 170 is arranged on the second shell 120, so that the closed first shell 110 and the closed second shell 120 are buckled and fixed.
The threading cavity 130 is communicated with the outside of the hollow shell 1 through a plurality of threading holes for inserting the cable cores 2, each group of threading holes penetrate through a closed gap between the first shell 110 and the second shell 120, so that the threading holes form threading grooves 140 in corresponding positions of the first shell 110 and the second shell 120 respectively, namely the threading holes penetrate through the first shell 110 and the second shell 120 and form the threading grooves 140 in the first shell 110 and the second shell 120, and the inner surfaces of the threading grooves 140 are provided with convex ribs 141.
The quantity of through wires hole is 3 groups in this embodiment, and the diameter of each group of through wires hole is all inequality for alternate cable conductor 2 of different diameters, and common first cable conductor 210 (cross sectional area 1.5 mm) is placed in cooperation respectively to three groups of through wires holes2) A second cable core 220 (cross-sectional area 2.5 mm)2) And a third cable core 230 (cross-sectional area 4.0 mm)2)。
In order to ensure the correctness of the Q-type wiring terminal reconnecting the circuit and to facilitate the distinguishing identification, a space is reserved on the hollow shell 1 for identifying workers; namely, the outer surface of the hollow shell 1 is provided with a mark part 150 for marking different threading holes with different diameters, and particularly, the mark part 150 is arranged on one surface of the hollow shell 1 parallel to the plane where the axes of the three groups of threading holes are located, so that a worker can write and record information of three cable core wires 2 conveniently.
As shown in fig. 4, the first engaging portion 170 includes an engaging cavity 171 disposed on the first housing 110, a cross bar 172 is disposed in the engaging cavity 171, the second engaging portion 180 includes a connecting rod 181 vertically disposed on the second housing 120, and a fastening elbow 182 is disposed at an end of the connecting rod 181; when the first housing 110 and the second housing 120 are closed, the snap bends 182 snap over the cross bar 172.
The hollow shell 1 is of a cubic structure in the appearance outline, and the plurality of threading holes are formed in the same surface of the cubic hollow shell 1.
Expand hollow casing 1, place three kinds of cable conductor 2 of different diameters in three groups through wires holes, protruding muscle 141 blocks cable conductor 2, and whole Q type binding post can not rock inside the box after hollow casing 1 is closed, and is difficult for droing. If the connection structure of the first engaging portion 170 and the second engaging portion 180 is opened only by external force, the Q-type connecting terminal can be taken out. Use the utility model discloses when preventing that Q type binding post mistake from bumping the device and protecting, pull down Q type binding post and block up Q type binding post to threading groove 140 under cavity casing 1 opens the condition on corresponding through wires hole, then closed first casing 110 and second casing 120, lock joint elbow 182 lock joint is reliable with outside isolation with Q type binding post on horizontal pole 172, stop to take place the mistake and bump, and be difficult for droing, Q type binding post mistake has effectively been reduced and has been bumped, the risk of mistake ground connection and alternating current-direct current crosstalk, if need take out Q type binding post again, only need a word bolt sword to prize the lock joint elbow 182 and can break away from horizontal pole 172 with lock joint elbow 182.
Claims (5)
1. The device for preventing the Q-type wiring terminal from being mistakenly touched is characterized by comprising a hollow shell (1) with a wire placing cavity (130) arranged inside, wherein the hollow shell (1) comprises a first shell (110) and a second shell (120) which are connected through a folding part (160), so that the first shell (110) and the second shell (120) can be unfolded/closed around the folding part (160); a first buckling part (170) is arranged on the first shell (110), and a second buckling part (180) matched with the first buckling part (170) is arranged on the second shell (120) so as to buckle and fix the closed first shell (110) and the closed second shell (120);
put wire chamber (130) through a plurality of through wires holes that are used for interlude cable conductor (2) and cavity casing (1) outside intercommunication, and each group through wires hole all passes and makes this through wires hole form through wires groove (140) respectively on the corresponding position of first casing (110) and second casing (120) on the closed gap between closed first casing (110) and second casing (120), through wires groove (140) surface is equipped with protruding muscle (141).
2. The device for preventing the Q-type wiring terminal from mistakenly colliding according to claim 1, wherein: the diameters of all the threading holes in the plurality of threading holes are different.
3. The device for preventing the Q-type wiring terminal from mistakenly colliding according to claim 2, wherein: the outer surface of the hollow shell (1) is provided with a mark part (150) for marking different threading holes with different diameters.
4. The device for preventing the Q-type wiring terminal from mistakenly colliding according to claim 1, wherein: the first buckling part (170) comprises a buckling cavity (171) arranged on the first shell (110), a cross rod (172) is arranged in the buckling cavity (171), the second buckling part (180) comprises a connecting rod (181) vertically arranged on the second shell (120), and the tail end of the connecting rod (181) is provided with a buckling elbow (182); when the first shell (110) and the second shell (120) are closed, the buckling elbow (182) is buckled on the cross bar (172).
5. The device for preventing the Q-type wiring terminal from mistakenly colliding according to claim 2, wherein: the hollow shell (1) is of a cubic structure in the appearance outline, and the threading holes are formed in the same face of the cubic hollow shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921884358.XU CN210404083U (en) | 2019-11-04 | 2019-11-04 | Device for preventing Q type wiring terminal from mistakenly touching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921884358.XU CN210404083U (en) | 2019-11-04 | 2019-11-04 | Device for preventing Q type wiring terminal from mistakenly touching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210404083U true CN210404083U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921884358.XU Active CN210404083U (en) | 2019-11-04 | 2019-11-04 | Device for preventing Q type wiring terminal from mistakenly touching |
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| CN (1) | CN210404083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281548A (en) * | 2021-06-29 | 2021-08-20 | 广东电网有限责任公司 | Ammeter binding post |
-
2019
- 2019-11-04 CN CN201921884358.XU patent/CN210404083U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281548A (en) * | 2021-06-29 | 2021-08-20 | 广东电网有限责任公司 | Ammeter binding post |
| CN113281548B (en) * | 2021-06-29 | 2023-06-09 | 广东电网有限责任公司 | Ammeter binding post |
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