CN110957686A - Positioning device for incoming cable on box-type transformer - Google Patents
Positioning device for incoming cable on box-type transformer Download PDFInfo
- Publication number
- CN110957686A CN110957686A CN201911281108.1A CN201911281108A CN110957686A CN 110957686 A CN110957686 A CN 110957686A CN 201911281108 A CN201911281108 A CN 201911281108A CN 110957686 A CN110957686 A CN 110957686A
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- Prior art keywords
- sleeve
- box
- positioning plate
- wall
- movable sleeve
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0456—Ladders or other supports
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses a positioning device for an inlet cable on a box-type transformer, which comprises a box body on the box-type transformer, wherein a wire inlet hole is formed at the bottom of the side wall of the box body, an external thread sleeve is screwed in the wire inlet hole of the box body, a flange is formed at the inner end of the external thread sleeve and abuts against the inner wall of the box body, an internal thread sleeve is screwed at the outer end of the external thread sleeve, which is exposed out of the outer wall of the box body, an annular groove penetrating through the outer end face of the external thread sleeve is formed on the inner wall of the external thread sleeve, an annular rubber sleeve is inserted in the annular groove of the external thread sleeve, an annular end cover is formed at. The invention can restrain the incoming cable and realize effective sealing by utilizing the compression and expansion of the rubber sleeve, and simultaneously, the invention is additionally provided with the positioning bracket which can move in a small range to limit the incoming cable to rebound to be in a straight state.
Description
The technical field is as follows:
the invention relates to the technical field of box-type transformers, in particular to a positioning device for an incoming cable on a box-type transformer.
Background art:
the box type transformer (generally referred to as a box transformer for short) is designed by centralizing the traditional transformer in a box type shell, has small volume, light weight, low noise, low loss and high reliability, and is widely applied to residential districts, commercial centers, light stations, airports, factories and mines, enterprises, hospitals, schools and other places. Case becomes lateral wall bottom generally can open there is the entrance hole, the cable passes the entrance hole and upwards buckles simultaneously and be connected with the joint of equipment in the box, but because the cable of buckling in the box does not have equipment to fix it, so its scope of oscillation is great, and because cable toughness is stronger, so it is upwards buckled and is kick-backed into straight state easily under the fixed condition of fixing device, if the cable kick-backs to the kink that makes progress, its and the joint department of equipment take place the scheduling problem that drops easily, thereby the security of equipment has been reduced, make equipment can not the healthy operation.
The invention content is as follows:
the invention aims to overcome the defects in the prior art, and provides a positioning device for an inlet cable on a box-type transformer, which can restrain the inlet cable and realize effective sealing by utilizing the compression and expansion of a rubber sleeve, and is additionally provided with a positioning support capable of moving in a small range to limit the inlet cable to rebound to a straight state.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a positioning device for an incoming cable on a box-type transformer comprises a box body on the box-type transformer, wherein a wire inlet hole is formed in the bottom of the side wall of the box body, an external thread sleeve is screwed in the wire inlet hole of the box body, a flange is formed at the inner end of the external thread sleeve and abuts against the inner wall of the box body, an internal thread sleeve is screwed on the outer wall of the external thread sleeve, which is exposed out of the box body, the inner wall of the external thread sleeve is formed with an annular groove which penetrates through the outer end face of the external thread sleeve, an annular rubber sleeve is inserted in the annular groove of the external thread sleeve, an annular end cover is formed at the outer end of;
the utility model discloses a movable sleeve, including inlet hole, locating plate, last locating plate, convex first fixture block and second fixture block, be fixed with down locating plate and last locating plate on the box inner wall of inlet hole upside respectively, the last locating plate is located the upside of locating plate down, it has down location notch and last location notch to shape respectively on locating plate down and the last locating plate, it has convex first fixture block and second fixture block to shape respectively on the both sides wall of lower location notch and last location notch opening part, it has the lower movable sleeve and the last movable sleeve of "worker" font to peg graft respectively in the lower location notch of lower locating plate and the last locating plate, be equipped with the spring between lower movable sleeve and the last movable sleeve, the both ends of spring are pegged graft respectively and.
Preferably, a lower guide sleeve and an upper guide sleeve are respectively inserted and fixed in the lower movable sleeve and the upper movable sleeve, the lower guide sleeve exposes out of the lower end face of the lower movable sleeve, and the upper guide sleeve exposes out of the upper end face of the upper movable sleeve.
Preferably, a supporting plate is arranged between the lower positioning plate and the upper positioning plate, the supporting plates are distributed on two sides of the lower positioning plate, the upper end and the lower end of the supporting plate are respectively fixed on the lower positioning plate and the upper positioning plate, and the supporting plate is fixed on the inner side wall of the box body.
Preferably, the outer contour of the flange on the external thread sleeve is in a regular hexagon shape.
Preferably, the lower positioning notch on the lower positioning plate or the upper positioning notch on the upper positioning plate are both in a strip shape, the diameter of the outer wall of the middle part of the upper movable sleeve is smaller than the width of the upper positioning notch, and the diameter of the outer wall of the middle part of the upper movable sleeve is larger than the distance between the second clamping blocks; the diameter of the outer wall of the middle part of the lower movable sleeve is smaller than the width of the lower positioning notch, and the diameter of the outer wall of the middle part of the lower movable sleeve is larger than the distance between the first clamping blocks.
The invention has the beneficial effects that: it utilizes rubber sleeve compression expansion can retrain the inlet wire cable, can realize effective sealed again, still adds simultaneously by the locating support that can the small range activity, and the restriction inlet wire cable rebounds to straight state.
Description of the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic side view, partially in section, of the present invention;
in the figure: 1. a box body; 2. an external thread sleeve; 21. an annular groove; 3. an internal thread sleeve; 31. an end cap; 4. a rubber sleeve; 5. a lower positioning plate; 51. a lower positioning notch; 52. a first clamping block; 6. an upper positioning plate; 61. an upper positioning notch; 62. a second fixture block; 7. a support plate; 8. an upper movable sleeve; 9. a lower movable sleeve; 10. a spring; 11. an upper guide sleeve; 12. and a lower guide sleeve.
The specific implementation mode is as follows:
example (b): as shown in fig. 1 and 2, the positioning device for the incoming cable on the box-type transformer comprises a box body 1 on the box-type transformer, wherein a wire inlet hole is formed in the bottom of the side wall of the box body 1, an external thread sleeve 2 is screwed in the wire inlet hole of the box body 1, a flange is formed at the inner end of the external thread sleeve 2 and abuts against the inner wall of the box body 1, an internal thread sleeve 3 is screwed at the outer end of the external thread sleeve 2, which is exposed out of the outer wall of the box body 1, an annular groove 21 which penetrates through the outer end face of the external thread sleeve 2 is formed on the inner wall of the external thread sleeve 2, an annular rubber sleeve 4 is inserted in the annular groove 21 of the external thread sleeve 2, an annular end cover 31 is formed at;
a lower positioning plate 5 and an upper positioning plate 6 are respectively fixed on the inner wall of the box body 1 on the upper side of the wire inlet hole, the upper positioning plate 6 is positioned on the upper side of the lower positioning plate 5, a lower positioning notch 51 and an upper positioning notch 61 are respectively formed on the lower positioning plate 5 and the upper positioning plate 6, a first arc-shaped fixture block 52 and a second arc-shaped fixture block 62 are respectively formed on two side walls of the opening of the lower positioning notch 51 and the opening of the upper positioning notch 61, a lower movable sleeve 9 and an upper movable sleeve 8 in an I shape are respectively inserted into the lower positioning notch 51 of the lower positioning plate 5 and the upper positioning notch 61 of the upper positioning plate 6, a spring 10 is arranged between the lower movable sleeve 9 and the upper movable sleeve 8, and two ends of the spring 10 are respectively inserted and fixed in the lower movable sleeve 9 and.
Preferably, a lower guide sleeve 12 and an upper guide sleeve 11 are respectively inserted and fixed in the lower movable sleeve 9 and the upper movable sleeve 8, the lower guide sleeve 12 exposes the lower end face of the lower movable sleeve 9, and the upper guide sleeve 11 exposes the upper end face of the upper movable sleeve 8.
Preferably, a supporting plate 7 is arranged between the lower positioning plate 5 and the upper positioning plate 6, the supporting plates 7 are distributed on two sides of the lower positioning plate 5, the upper end and the lower end of each supporting plate 7 are respectively fixed on the lower positioning plate 5 and the upper positioning plate 6, and the supporting plates 7 are fixed on the inner side wall of the box body 1.
Preferably, the outer contour of the flange on the external thread sleeve 2 is in a regular hexagon shape.
Preferably, the lower positioning notch 51 on the lower positioning plate 5 or the upper positioning notch 61 on the upper positioning plate 6 are both strip-shaped, the diameter of the outer wall of the middle part of the upper movable sleeve 8 is smaller than the width of the upper positioning notch 61, and the diameter of the outer wall of the middle part of the upper movable sleeve 8 is larger than the distance between the second clamping blocks 62; the diameter of the outer wall of the middle part of the lower movable sleeve 9 is smaller than the width of the lower positioning notch 51, and the diameter of the outer wall of the middle part of the lower movable sleeve 9 is larger than the distance between the first clamping blocks 52.
The working principle is as follows: the invention is a positioning device of an incoming cable on a box-type transformer, the incoming cable passes through a rubber sleeve 4 and enters a box body of the box-type transformer, then an internal thread sleeve 3 is rotated, the internal thread sleeve 3 is matched with an external thread sleeve 2 to realize compression, extrusion and expansion of the rubber sleeve 4, so that the inner wall of the rubber sleeve 4 presses the incoming cable, the incoming cable can be restrained, and good sealing can be realized;
when in use, the upper movable sleeve 8 and the lower movable sleeve 9 are firstly pulled out of the upper positioning notch 61 of the upper positioning plate 6 or the lower positioning notch 51 of the lower positioning plate 5, the incoming cable passes through the lower guide sleeve 12, the lower movable sleeve 9, the spring 10, the upper movable sleeve 8 and the upper guide sleeve 11 and then is connected with a connecting part on the equipment, then the upper movable sleeve 8 is buckled in the upper positioning notch 61 of the upper positioning plate 6, the lower movable sleeve 9 is pulled down to realize the extension of the spring 10, the spring 10 is lengthened and pressed on the outer wall of the incoming cable, then in will turning over movable sleeve 9 buckle to the lower location notch 51 of lower locating plate 5, then realize that the inlet wire cable is fixed a position at the locating support that lower locating plate 5 and upper locating plate 6 are constituteed, it carries out the activity of minizone, nevertheless can prevent that the inlet wire cable from kick-backing to straight state.
The examples are intended to illustrate the invention, but not to limit it. The described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the appended claims should be accorded the full scope of the invention as set forth in the appended claims.
Claims (5)
1. The utility model provides a positioner of last inlet cable of box transformer, box (1) on the box transformer, the bottom shaping of box (1) lateral wall has the entrance hole, its characterized in that: an external thread sleeve (2) is screwed in a thread inlet hole of the box body (1), a flange is formed at the inner end of the external thread sleeve (2) and abuts against the inner wall of the box body (1), the outer end of the external thread sleeve (2) is exposed out of the outer wall of the box body (1) and is screwed with an internal thread sleeve (3), an annular groove (21) penetrating through the outer end face of the external thread sleeve (2) is formed in the inner wall of the external thread sleeve (2), an annular rubber sleeve (4) is inserted in the annular groove (21) of the external thread sleeve (2), an annular end cover (31) is formed at the outer end of the internal thread sleeve (3), and the end cover (31) abuts against the outer end face of the rubber sleeve (;
the inner wall of the box body (1) on the upper side of the wire inlet hole is respectively fixed with a lower positioning plate (5) and an upper positioning plate (6), the upper positioning plate (6) is located on the upper side of the lower positioning plate (5), a lower positioning notch (51) and an upper positioning notch (61) are formed in the lower positioning plate (5) and the upper positioning plate (6) respectively, a first arc-shaped fixture block (52) and a second arc-shaped fixture block (62) are formed in two side walls of openings of the lower positioning notch (51) and the upper positioning notch (61) respectively, a lower movable sleeve (9) and an upper movable sleeve (8) which are in an I shape are inserted into the lower positioning notch (51) of the lower positioning plate (5) and the upper positioning notch (61) of the upper positioning plate (6) respectively, a spring (10) is arranged between the lower movable sleeve (9) and the upper movable sleeve (8), and two ends of the spring (10) are inserted into the lower movable sleeve (9) and the upper movable sleeve (.
2. The positioning device for the incoming cable of the box-type transformer according to claim 1, wherein: a lower guide sleeve (12) and an upper guide sleeve (11) are respectively inserted and fixed in the lower movable sleeve (9) and the upper movable sleeve (8), the lower guide sleeve (12) exposes out of the lower end face of the lower movable sleeve (9), and the upper guide sleeve (11) exposes out of the upper end face of the upper movable sleeve (8).
3. The positioning device for the incoming cable of the box-type transformer according to claim 1, wherein: the box is characterized in that a supporting plate (7) is arranged between the lower positioning plate (5) and the upper positioning plate (6), the supporting plates (7) are distributed on two sides of the lower positioning plate (5), the upper end and the lower end of each supporting plate (7) are fixed on the lower positioning plate (5) and the upper positioning plate (6) respectively, and the supporting plates (7) are fixed on the inner side wall of the box body (1).
4. The positioning device for the incoming cable of the box-type transformer according to claim 1, wherein: the outer contour of the flange on the external thread sleeve (2) is in a regular hexagon shape.
5. The positioning device for the incoming cable of the box-type transformer according to claim 1, wherein: the lower positioning notch (51) on the lower positioning plate (5) or the upper positioning notch (61) on the upper positioning plate (6) are both in a strip shape, the diameter of the outer wall of the middle part of the upper movable sleeve (8) is smaller than the width of the upper positioning notch (61), and the diameter of the outer wall of the middle part of the upper movable sleeve (8) is larger than the distance between the second clamping blocks (62); the diameter of the outer wall of the middle part of the lower movable sleeve (9) is smaller than the width of the lower positioning notch (51), and the diameter of the outer wall of the middle part of the lower movable sleeve (9) is larger than the distance between the first clamping blocks (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911281108.1A CN110957686A (en) | 2019-12-11 | 2019-12-11 | Positioning device for incoming cable on box-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911281108.1A CN110957686A (en) | 2019-12-11 | 2019-12-11 | Positioning device for incoming cable on box-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110957686A true CN110957686A (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911281108.1A Pending CN110957686A (en) | 2019-12-11 | 2019-12-11 | Positioning device for incoming cable on box-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110957686A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202678869U (en) * | 2012-06-26 | 2013-01-16 | 常州市同裕塑件有限公司 | Wiring duct |
| CN203951118U (en) * | 2014-07-23 | 2014-11-19 | 四川天微电子有限责任公司 | A kind of uncapping from the anti-explosion terminal box opening circuit |
| CN207603114U (en) * | 2017-10-27 | 2018-07-10 | 浙江晶科能源有限公司 | A kind of photovoltaic module and its terminal box cable fixer |
| CN207967820U (en) * | 2018-03-30 | 2018-10-12 | 江西成名电气有限公司 | One plants case becomes the fixing device of inner cable inlet wire |
| CN209313300U (en) * | 2018-12-29 | 2019-08-27 | 国网河南省电力公司新乡供电公司 | Novel transformer substation overhauls cable fixture |
| CN209561871U (en) * | 2018-10-30 | 2019-10-29 | 沈阳铭讯科技有限公司 | One kind is based on computer room power distribution cabinet engineering wiring auxiliary device |
-
2019
- 2019-12-11 CN CN201911281108.1A patent/CN110957686A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202678869U (en) * | 2012-06-26 | 2013-01-16 | 常州市同裕塑件有限公司 | Wiring duct |
| CN203951118U (en) * | 2014-07-23 | 2014-11-19 | 四川天微电子有限责任公司 | A kind of uncapping from the anti-explosion terminal box opening circuit |
| CN207603114U (en) * | 2017-10-27 | 2018-07-10 | 浙江晶科能源有限公司 | A kind of photovoltaic module and its terminal box cable fixer |
| CN207967820U (en) * | 2018-03-30 | 2018-10-12 | 江西成名电气有限公司 | One plants case becomes the fixing device of inner cable inlet wire |
| CN209561871U (en) * | 2018-10-30 | 2019-10-29 | 沈阳铭讯科技有限公司 | One kind is based on computer room power distribution cabinet engineering wiring auxiliary device |
| CN209313300U (en) * | 2018-12-29 | 2019-08-27 | 国网河南省电力公司新乡供电公司 | Novel transformer substation overhauls cable fixture |
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| PB01 | Publication | ||
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Application publication date: 20200403 |