CN113655332A - Core wire checking device for multi-core secondary cable - Google Patents
Core wire checking device for multi-core secondary cable Download PDFInfo
- Publication number
- CN113655332A CN113655332A CN202110769283.6A CN202110769283A CN113655332A CN 113655332 A CN113655332 A CN 113655332A CN 202110769283 A CN202110769283 A CN 202110769283A CN 113655332 A CN113655332 A CN 113655332A
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- gear
- core
- sliding block
- core wire
- secondary cable
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a multi-core secondary cable core wire checking device, wherein a host end and a slave end are respectively provided with a pair wire terminal row, the pair wire terminal row comprises a shell and a plurality of wire clamps, the host end and the slave end are respectively and electrically connected with a sliding block through wires, the front end of the sliding block is provided with a limiting part with a through hole, a clamping block is rotatably connected between two racks, the shell is rotatably connected with an extrusion wheel, one end of the extrusion wheel is connected with a first gear through a one-way transmission mechanism, the other end of the extrusion wheel is connected with a second gear through the one-way transmission mechanism, the first gear is meshed with the rack, the second gear is meshed with the other rack through a third gear, the contour line of the extrusion wheel is an Archimedes spiral, and a first spring is arranged in a box body and used for pushing the sliding block to move forwards. According to the invention, the core wire can be clamped by loosening after being inserted to the bottom, and can be loosened by loosening after being inserted to the bottom again, so that the clamping force is increased, the core wire is easier to insert, and the operation is more convenient.
Description
Technical Field
The invention relates to the technical field of cable core wire checking, in particular to a multi-core secondary cable core wire checking device.
Background
In the process of transformer substation infrastructure and large-scale technical transformation projects, a large number of multi-core secondary cables are used as signal transmission media between equipment control systems such as protection devices and measurement and control devices. The correctness of the cable core wire determines the correctness of secondary equipment signals and control loop wiring, the two ends of a cable to be checked are inserted into the paired terminal block through the secondary cable core wire checking device, and the checking of the multi-core secondary cable core wire is completed by the matching of a main machine end and an auxiliary machine end, for example, a tool for quickly checking the secondary cable core wire with the publication number of CN 110850338A. The core wire is clamped by the wire aligning terminal row through the elastic clamp in the prior art, the hardness of the core wire after the insulating sheath is removed is reduced, the core wire cannot be inserted between the elastic clamps when the strength of the elastic clamps is large, the core wire is easy to break away when the strength of the elastic clamps is small, and particularly, when the core wire of the multi-core secondary cable is subjected to core alignment, the core wire is easy to fall off due to the fact that the core wire is more, the core wire is short in exposed length, and therefore the core wire needs to be placed into the elastic clamps and then fastened through the force application of screws, and the operation steps are complex.
Disclosure of Invention
Aiming at the prior art, the invention provides the multi-core secondary cable core wire checking device, the core wire is inserted to the bottom and then loosened to complete the clamping of the core wire, the core wire is inserted to the bottom and then loosened to complete the loosening of the core wire, the clamping force is increased, meanwhile, the core wire is easier to insert, and the operation is more convenient.
The technical scheme of the invention is realized as follows:
the checking device for the core wires of the multi-core secondary cable comprises a host end and a slave end, wherein the host end and the slave end are both provided with a pair wire terminal row, the pair wire terminal row comprises a shell and a plurality of wire clamps, each wire clamp comprises a sliding block, a clamping block, a pushing wheel, a rack, a first gear, a second gear and a third gear, the host end and the slave end are respectively and electrically connected with the sliding blocks through wires, the front end of each sliding block is provided with a limiting part with a through hole, the racks connected with the limiting part are arranged above the two sides of each sliding block, the clamping blocks are rotatably connected between the two racks, the pushing wheels rotatably connected with the shell are arranged above the clamping blocks, one end of each pushing wheel is connected with the first gear through a one-way transmission mechanism, the other end of each pushing wheel is connected with the second gear through a one-way transmission mechanism, and the first gear is meshed with the racks, the second gear is connected with the other gear on the shell through rotating the rack, the contour line of the extrusion wheel is Archimedes spiral, a first spring is arranged in the box body, and the first spring is used for pushing the sliding block to move forwards.
Furthermore, be equipped with the spout in the box body, the both sides of sliding block are equipped with along the gliding first arch of spout.
Furthermore, a second protrusion for preventing the sliding block from being separated from the box body is arranged above the limiting part.
Furthermore, the bottom of the clamping block is provided with inclined teeth, and the inclined teeth face to the rear of the box body.
Furthermore, the clamping block is provided with a second spring, and the second spring is used for driving the clamping block to be far away from the sliding block.
Furthermore, the extruding and pushing wheel is provided with an indication strip, and the box body above the extruding and pushing wheel is provided with an observation window.
Furthermore, the tail ends of the two racks are connected with each other through a cross rod, and the tail ends of the two racks are connected with the sliding block through vertical rods respectively.
Further, the wire is electrically connected with the first spring, and the first spring is a metal spring.
The invention has the beneficial effects that:
the line terminal row includes a plurality of wire clamps, can install and connect many with the heart yearn. The invention can greatly accelerate the connection speed of the wire terminal strip in practical application and improve the working efficiency. The size of the included angle between the outer contour line of the extrusion wheel and the clamping block is related to the clamping force of the clamping block on the core wire, the extrusion wheel with the small included angle between the outer contour line and the clamping block can be adopted, and the clamping force of the clamping block on the core wire is improved under the condition of using smaller force. The core wire can be locked after being inserted and pushed to the bottom for the first time and loosened, the core wire cannot fall off under the action of external force, and the locked state can be released when the sliding block is pushed to move by applying smaller force again under the locked state of the core wire. According to the invention, the core wire can be clamped by loosening after being inserted to the bottom, and can be loosened by loosening after being inserted to the bottom again, so that the clamping force is increased, the core wire is easier to insert, and the operation is more convenient.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a perspective view of a core wire checking device for a multi-core secondary cable according to the present invention;
FIG. 2 is a partial cross-sectional view of a pair terminal block of the multi-core secondary cable core collation apparatus of the present invention;
FIG. 3 is a sectional view of a pair terminal block of the multi-core secondary cable core wire collating device of the present invention;
in the figure, 1 a host machine end, 2 a slave machine end, 3 a pair of line terminal rows, 4 a shell, 5 a wire clamp, 6 a sliding block, 7 a clamping block, 8a pushing wheel, 9 a rack, 10 a first gear, 11 a second gear, 12 a third gear, 13 a wire, 14 a through hole, 15 a limiting part, 16 a one-way transmission mechanism, 17 a first spring, 18 a sliding groove, 19 a first bulge, 20 a second bulge, 21 a helical tooth, 22 a second spring, 23 an observation window, 24 an indication strip, 25 a cross rod and 26 a vertical rod.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the multi-core secondary cable core wire checking device comprises a host end 1 and a slave end 2, wherein the host end 1 and the slave end 2 are both provided with a pair terminal row 3, the pair terminal row 3 comprises a housing 4 and a plurality of wire clamps 5, each wire clamp 5 comprises a sliding block 6, a clamping block 7, a pushing wheel 8, a rack 9, a first gear 10, a second gear 11 and a third gear 12, the host end 1 and the slave end 2 are respectively and electrically connected with the sliding block 6 through a wire 13, the front end of the sliding block 6 is provided with a limiting part 15 with a through hole 14, the racks 9 connected with the limiting part 15 are arranged above two sides of the sliding block, the clamping block 7 is rotatably connected between the two racks 9, the pushing wheel 8 rotatably connected with the housing 4 is arranged above the clamping block 7, one end of the pushing wheel 8 is connected with the first gear 10 through a one-way transmission mechanism 16, the other end of the extrusion wheel 8 is connected with a second gear 11 through a one-way transmission mechanism 16, the first gear 10 is meshed with the rack 9, the second gear 11 is meshed with the other rack 9 through a third gear 12 which is rotatably connected to the shell 4, and the contour line of the extrusion wheel 8 is an Archimedes spiral.
The main machine end 1 and the auxiliary machine end 2 are respectively and electrically connected with a sliding block 6 of a pair line terminal row 3 through a lead 13, two ends of a cable core wire are respectively connected on the main machine end 1 and the pair line terminal row 3 of the auxiliary machine end 2, the core wire is inserted into a through hole 14 of a limiting part 15 positioned at the front end of the sliding block when the pair line terminal row 3 is used, an insulating skin of the core wire is clamped outside the through hole 14, the core wire pushes the sliding block to move towards the inner part of a shell 4 of the insulator terminal row, the sliding block pushed into the shell 4 can be pushed out to an initial position under the action of a first spring 17, and the sliding block is continuously driven to reciprocate under the action of external force and spring force. The line terminal row comprises a plurality of conductor clamps 5 which can be installed and connected with a plurality of core wires. The rack 9 fixed on the limiting piece 15 drives the first gear 10 and the third gear 12 engaged with the rack to rotate when moving. The first gear 10 is connected with the pushing wheel 8 through a one-way transmission mechanism 16, when the sliding block moves inwards, the first gear 10 drives the pushing wheel 8 to rotate clockwise, and when the sliding block moves outwards, the first gear 10 does not drive the pushing wheel 8 to rotate. The third gear 12 is engaged with the second gear 11, the second gear 11 is connected with the pushing wheel 8 through the one-way transmission mechanism 16, when the sliding block moves inwards, the second gear 11 does not drive the pushing wheel 8 to rotate, and when the sliding block moves outwards, the second gear 11 drives the pushing wheel 8 to rotate clockwise. During operation, a core wire is inserted into the through hole 14 of the limiting part 15 by one hand, and the core wire is drawn back and forth to drive the sliding block to move back and forth, so that the extrusion wheel 8 is continuously driven to rotate clockwise. The contour line of the extrusion wheel 8 is an Archimedes spiral line, the extrusion wheel 8 rotates continuously to extrude the clamping block 7 connected between the racks 9 in a rotating mode, and therefore the clamping block 7 is pushed to the sliding block continuously, and a core wire which penetrates through the limiting block and is located between the sliding block and the clamping block 7 is clamped tightly. In the use process, when the sliding block is pushed to the bottom each time to move, the sliding block is reset under the action of the first spring 17, and after the core wire is inserted and pushed to the bottom for the first time, one end of the pushing wheel 8, which is far away from the rotating center, is in contact with the clamping part when the sliding block is reset, so that the core wire is clamped. After the core wire is pushed to the bottom for the second time, one end of the extruding and pushing wheel 8, which is closer to the rotating center, is contacted with the clamping when resetting, so that the core wire is loosened. Therefore, in the operation process, the core wire can be clamped by being inserted and pushed to the bottom and then loosened, and the core wire can be taken out by being pushed to the bottom again and then loosened. In practical application, the invention can greatly accelerate the connection speed of the wire terminal strip 3 and improve the working efficiency. The Archimedes spiral is a track generated by a point leaving a fixed point at a constant speed and simultaneously rotating around the fixed point at a fixed angular speed, and when the extruding and pushing wheel 8 rotates, the clamping block 7 is uniformly pushed to clamp the core wire, so that a larger clamping force can be provided. The size of the included angle between the outer contour line of the extrusion wheel 8 and the clamping block 7 is related to the clamping force of the clamping block 7 on the core wire, the extrusion wheel 8 with the small included angle between the outer contour line and the clamping block 7 can be adopted, and the clamping force of the clamping block 7 on the core wire is improved under the condition of using smaller force. The core wire can be locked after being inserted and pushed to the bottom for the first time and loosened, the core wire cannot fall off under the action of external force, and the locked state can be released when the sliding block 6 is pushed to move by applying smaller force again under the locked state of the core wire. The invention aims to provide a core wire checking device for a multi-core secondary cable, which can clamp the core wire by loosening the core wire after the core wire is inserted to the bottom, can loosen the core wire by loosening the core wire after the core wire is inserted to the bottom again, increases the clamping force, is easier to insert the core wire and is more convenient and faster to operate.
Alternatively, the one-way transmission mechanism 16 may be a ratchet transmission mechanism or a one-way bearing.
Specifically, a sliding groove 18 is formed in the box body, and first protrusions 19 sliding along the sliding groove 18 are arranged on two sides of the sliding block 6. The first protrusion 19 is fixed on the sliding block 6, so that the sliding block 6 can move along the direction of the sliding groove 18, and the sliding stability of the sliding block 6 is improved.
Specifically, a second protrusion 20 for preventing the slider from separating from the box body is disposed above the limiting member 15. The second projection 20 prevents the slider from being detached from the housing 4 while the slider is reciprocally slid.
Specifically, the bottom of the clamping block 7 is provided with a helical tooth 21, and the helical tooth 21 faces the rear of the box body. After the clamping block 7 and the slide block clamp the core wire, the helical teeth 21 contact with the core wire to improve the friction force, and the core wire can be locked to prevent the core wire from falling off.
Specifically, the clamping block 7 is provided with a second spring 22, and the second spring 22 is used for driving the clamping block 7 to be away from the sliding block. After the second pushing of the slide to move inwards, it is released and the clamping block 7 is disengaged from the core wire under the action of the second spring 22. When putting into the heart yearn again next time, grip block 7 and sliding block 6 separation are convenient for put into the heart yearn.
Specifically, the pushing wheel 8 is provided with an indication strip 24, and the box body above the pushing wheel 8 is provided with an observation window 23. The indication strip 24 can be seen through the observation window 23, and the rotating position of the extrusion wheel 8 can be judged according to the position of the indication strip 24, so that the rotating position of the extrusion wheel 8 can be conveniently adjusted.
Specifically, the tail ends of the two racks 9 are connected with each other through a cross rod 25, and the tail ends of the two racks 9 are connected with the sliding block through vertical rods 26 respectively. The tail ends of the racks 9 are connected through the cross rods 25 and the vertical rods 26, so that the strength of the racks 9 is improved, and the tail ends of the racks 9 can be prevented from deforming.
Specifically, the lead 13 is electrically connected to the first spring 17, and the first spring 17 is a metal spring. The first spring 17 is always connected to the sliding block 6, thus ensuring that the guide is always connected to the core.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The checking device for the core wires of the multi-core secondary cable comprises a host end and a slave end, wherein the host end and the slave end are both provided with a pair wire terminal row, and the checking device is characterized in that the pair wire terminal row comprises a shell and a plurality of wire clamps, each wire clamp comprises a sliding block, a clamping block, a pushing wheel, a rack, a first gear, a second gear and a third gear, the host end and the slave end are respectively and electrically connected with the sliding block through wires, the front end of the sliding block is provided with a limiting part with a through hole, the racks connected with the limiting part are arranged above two sides of the sliding block, the clamping block is rotatably connected between the two racks, the pushing wheel rotatably connected with the shell is arranged above the clamping block, one end of the pushing wheel is connected with the first gear through a one-way transmission mechanism, and the other end of the pushing wheel is connected with the second gear through the one-way transmission mechanism, the first gear with rack toothing, the third gear and another of second gear through rotating the connection on the shell rack toothing, the contour line of extrusion wheel is archimedes spiral, be equipped with first spring in the box body, first spring is used for promoting slider antedisplacement.
2. The multi-core secondary cable core wire checking device as claimed in claim 1, wherein a sliding groove is formed in the box body, and first protrusions sliding along the sliding groove are formed on both sides of the sliding block.
3. The multi-core secondary cable core checking device as claimed in claim 1, wherein a second protrusion for preventing the sliding block from being separated from the box body is provided above the limiting member.
4. The multi-core secondary cable core collation apparatus as claimed in claim 1, wherein said holding block is provided at a bottom thereof with slanted teeth, said slanted teeth being directed to a rear of said box body.
5. The multi-core secondary cable core collation apparatus as claimed in claim 1, wherein said gripping block is provided with a second spring for urging said gripping block away from said slider.
6. The multi-core secondary cable core wire checking device as claimed in claim 1, wherein the pushing wheel is provided with an indication strip, and the box body above the pushing wheel is provided with a viewing window.
7. The multi-core secondary cable core wire checking device as claimed in claim 1, wherein ends of the two racks are connected to each other by a cross bar, and ends of the two racks are connected to the slider by vertical bars, respectively.
8. The multi-core secondary cable core collation apparatus as claimed in claim 1, wherein said lead wire is electrically connected to said first spring, and said first spring is a metal spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110769283.6A CN113655332B (en) | 2021-07-07 | 2021-07-07 | Core wire checking device for multi-core secondary cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110769283.6A CN113655332B (en) | 2021-07-07 | 2021-07-07 | Core wire checking device for multi-core secondary cable |
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| Publication Number | Publication Date |
|---|---|
| CN113655332A true CN113655332A (en) | 2021-11-16 |
| CN113655332B CN113655332B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110769283.6A Active CN113655332B (en) | 2021-07-07 | 2021-07-07 | Core wire checking device for multi-core secondary cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118011063A (en) * | 2024-04-10 | 2024-05-10 | 国网山东省电力公司淄博供电公司 | Direct-insertion type secondary cable test wiring device |
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| Publication number | Publication date |
|---|---|
| CN113655332B (en) | 2022-06-21 |
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Effective date of registration: 20230802 Address after: 570101 Room 506, Huayu Building, Haifu Yiheng Road, Meilan District, Haikou City, Hainan Province Patentee after: Hainan Electric Power Industry Development Co.,Ltd. Address before: 570101 No.32 Haifu Road, Meilan District, Haikou City, Hainan Province Patentee before: Haikou Substation Operation and Inspection Branch of Hainan Power Grid Co.,Ltd. |