CN112448527A - Cable leading-in connector with pulling-out prevention function - Google Patents
Cable leading-in connector with pulling-out prevention function Download PDFInfo
- Publication number
- CN112448527A CN112448527A CN202011339571.XA CN202011339571A CN112448527A CN 112448527 A CN112448527 A CN 112448527A CN 202011339571 A CN202011339571 A CN 202011339571A CN 112448527 A CN112448527 A CN 112448527A
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- CN
- China
- Prior art keywords
- sleeve
- cable
- terminal box
- box wall
- retaining ring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Abstract
The invention relates to a wire and cable joint, in particular to a cable lead-in joint with a pull-out prevention function, which comprises a sleeve, wherein a cable penetrates through the sleeve and is then cured after being filled with insulating paint. The cable and the insulating paint are combined into a whole, and the sleeve and the insulating paint are combined into a whole. The motor junction box is characterized in that a hole is formed in the wall of the motor junction box, the size of the hole is matched with that of the sleeve, after a cable with the sleeve penetrates through the hole in the wall of the junction box, the reducing ring at one end of the sleeve abuts against the outer side of the wall of the motor junction box, a check ring is installed and abuts against the inner side of the wall of the motor junction box, the sleeve is fixed on the wall of the junction box, and a barrel of the sleeve in the junction box has a certain length. The cable lead-in connector is convenient to process, and a motor manufacturer can independently process the cable lead-in connector according to the specific condition of the motor so as to meet the individual requirements of the motor. Through the retaining ring fixed mode, mechanical strength is high, disassemble the convenience. Through insulating varnish solidification, improve the cable on the one hand and prevent pulling out mechanical strength, strengthen the cable insulation level simultaneously.
Description
Technical Field
The invention relates to a wire and cable connector, in particular to a cable leading-in connector with a pull-out prevention function.
Background
The cable lead-in connector, also called a cable stuffing box, is widely applied to junction boxes of various motors. The cable is used for fastening the electric wire and the cable, the tensile and torsional capacities of the electric wire and the cable are improved, and the cable is protected. Under the special environment of large vibration and cable stress, the common cable lead-in connector can not meet the use requirement, and the cable is difficult to be effectively protected.
At present, a domestic universal cable waterproof joint structure is shown in figure 1, a hole is formed in a motor junction box and used for fixing a stuffing box 2, and a cable 4 is led out from a motor binding post and then penetrates through the stuffing box 2 and a locking nut 1 to reach the outside of the junction box. The locking nut 1 is fastened to compress the sealing ring 3, so that the cable can be fastened.
The structure can play a good role in protecting cables for most of small and medium-sized motors, but has a poor effect on the large and medium-sized motors with large junction boxes and the motors applied to the vibration environment.
The main disadvantages are as follows: (1) for large and medium-sized motors with large junction boxes, the cables in the junction boxes are of certain lengths, the structure only fixes the cables on one side outside the junction boxes of the motors, the cables on one side inside the junction boxes cannot be effectively fixed, the junction boxes of the small and medium-sized motors are small, the cables in the junction boxes are not long, and therefore influences are not obvious.
(2) And sharp corners 5 are arranged at the positions of the cable inlet and the cable outlet. And the large and medium-sized motor cable is generally thicker and heavier, and the cable is often cut at the sharp corner position in figure 1 under the vibration environment of the motor.
Disclosure of Invention
The invention provides a cable leading-in connector with a pull-out prevention function, which can greatly improve the condition of a cable subjected to external force and effectively avoid cable pull-out accidents, and particularly has an obvious effect on large and medium-sized motors with large volumes and motors applied to strong vibration environments.
The invention is realized by adopting the following technical scheme: a cable leading-in connector with a pulling-out prevention function comprises a sleeve, wherein after the sleeve is fixed on the wall of a motor junction box, a cable penetrates through the sleeve and is fixed, and the cable is fastened by the cable leading-in connector.
According to the cable leading-in connector with the anti-pulling-out function, the cable penetrates through the sleeve and is then cured after being filled with the insulating paint, and the cable is fixed in the sleeve.
According to the cable leading-in connector with the anti-pulling-out function, the cable and the insulating paint are combined into a whole, the sleeve and the insulating paint are combined into a whole, and finally the sleeve, the insulating paint and the cable are combined into a whole.
According to the cable leading-in connector with the anti-pulling-out function, the arc R is processed at the two ends of the inner surface of the sleeve, so that the curing strength of the insulating paint and the sleeve is improved.
The utility model provides a foretell cable access joint with prevent pulling out and take off function, telescopic one end tip is equipped with the reducing ring, the retaining ring mounting groove is still processed to telescopic section of thick bamboo surface, trompil on motor terminal box wall, the hole size is supporting with the sleeve, after passing the hole on the motor terminal box wall with the sleeve, the reducing ring of sleeve one end tip supports on the motor terminal box wall outside, install the retaining ring in the retaining ring mounting groove, the retaining ring supports on motor terminal box wall is inboard, fix the sleeve on the terminal box wall from this.
The utility model provides a foretell cable introduction connects with prevent pulling out and take off function, circular arc R is processed at telescopic section of thick bamboo internal surface both ends, improve insulating varnish and telescopic curing strength, telescopic one end tip is equipped with the reducing ring, the retaining ring mounting groove is still processed to telescopic section of thick bamboo surface, trompil on motor terminal box wall, the hole size is supporting with the sleeve, after passing the hole on the motor terminal box wall with the sleeve, the reducing ring of sleeve one end tip supports on the motor terminal box wall outside, install the retaining ring in the retaining ring mounting groove, the retaining ring supports on motor terminal box wall inboard, fix the sleeve on the terminal box wall from this.
According to the cable leading-in connector with the anti-pulling-out function, after the sleeve is fixed on the wall of the junction box, the barrel of the sleeve in the junction box has a certain length; for large and medium motors with large junction boxes, the barrel of the junction box has a fastening effect on cables in the junction box.
The technical scheme of the invention has the following beneficial effects: the cable lead-in connector is convenient to process, and a motor manufacturer can independently process the cable lead-in connector according to the specific condition of the motor so as to meet the individual requirements of the motor. Through the retaining ring fixed mode, mechanical strength is high, disassemble the convenience. Through insulating varnish solidification, improve the cable on the one hand and prevent pulling out mechanical strength, strengthen the cable insulation level simultaneously.
Drawings
Fig. 1 is a schematic view of a waterproof joint structure of a universal cable.
Fig. 2 is a schematic view of a pull-out prevention cable lead-in connector structure.
In the figure: 1-locking nut 2-stuffing box 3-sealing ring 4-cable, 5-sharp corner, 6-motor junction box wall, 7-retainer ring, 8-sleeve, 9-insulating paint.
Detailed Description
A cable leading-in connector with a pull-out prevention function is characterized in that a sleeve 8 is processed firstly, and a cable 4 penetrates through the sleeve 8 and then is solidified after being encapsulated by insulating paint 9. The cable 4 is combined with the insulating paint 9 into a whole, the sleeve 8 is combined with the insulating paint 9 into a whole, and finally the sleeve 8, the insulating paint 9 and the cable 4 are combined into a whole.
When the sleeve 8 is processed, circular arcs R are processed at two ends in the sleeve, so that the curing strength of the insulating paint 9 and the sleeve 8 is improved, and the axial looseness of the cable is prevented. And machining a mounting groove of the retainer ring 2 at a corresponding position on the outer surface of the sleeve 8.
The motor junction box is characterized in that a hole is formed in the wall 6 of the motor junction box, the size of the hole is matched with that of the sleeve 8, after a sleeve belt cable penetrates through the hole in the wall 1 of the junction box, the reducing ring at one end of the sleeve 8 abuts against the outer side of the wall 6 of the motor junction box, the retainer ring 7 is installed, the retainer ring 7 abuts against the inner side of the wall 6 of the motor junction box, the sleeve 8 is fixed on the wall 1 of the junction box, and a barrel of the sleeve 8 in the junction box has a certain length.
Claims (9)
1. The utility model provides a cable leading-in connects with prevent pulling out function which characterized in that: the cable fixing device comprises a sleeve (8), wherein after the sleeve (8) is fixed on a motor junction box wall (6), a cable (4) penetrates through the sleeve (8) and is fixed, and the cable (4) is fastened by a cable leading-in connector.
2. The drop cable connector of claim 1, wherein: after penetrating through the sleeve (8), the cable (4) is encapsulated by insulating paint (9) and then cured, and the cable (4) is fixed in the sleeve (8).
3. A cable entry joint having a pull-out prevention function as defined in claim 2, wherein: the cable (4) and the insulating paint (9) are combined into a whole, the sleeve (8) and the insulating paint (9) are combined into a whole, and finally the sleeve (8), the insulating paint (9) and the cable (4) are combined into a whole.
4. A cable entry joint having a pull-out prevention function according to claim 2 or 3, wherein: and circular arcs R are processed at two ends of the inner surface of the sleeve (8), so that the curing strength of the insulating paint (9) and the sleeve (8) is improved.
5. A cable entry joint having a pull-out prevention function according to claim 2 or 3, wherein: the one end tip of sleeve (8) is equipped with the reducing ring, the retaining ring mounting groove is still processed to the section of thick bamboo surface of sleeve (8), trompil on motor terminal box wall (6), the hole size is supporting with sleeve (8), pass the hole on motor terminal box wall (6) with sleeve (8) after, the reducing ring of sleeve (8) one end tip supports on motor terminal box wall (6) outside, installation retaining ring (7) in the retaining ring mounting groove, retaining ring (7) support on motor terminal box wall (6) are inboard, fix sleeve (8) on terminal box wall (6) from this.
6. A cable entry joint having a pull-out prevention function as set forth in claim 3, wherein: processing circular arc R at a section of thick bamboo internal surface both ends of sleeve (8), improve the solidification strength of insulating varnish (9) and sleeve (8), the one end tip of sleeve (8) is equipped with the reducing ring, the retaining ring mounting groove is still processed to the section of thick bamboo surface of sleeve (8), trompil on motor terminal box wall (6), the hole size is supporting with sleeve (8), after passing the hole on motor terminal box wall (6) with sleeve (8), the reducing ring of sleeve (8) one end tip supports on motor terminal box wall (6) outside, installation retaining ring (7) in the retaining ring mounting groove, retaining ring (7) support on motor terminal box wall (6) are inboard, fix sleeve (8) on terminal box wall (6) from this.
7. The drop cable connector of claim 6, wherein: after the sleeve (8) is fixed on the wall (6) of the junction box, the barrel of the sleeve (8) in the junction box has a certain length.
8. A cable entry joint having a pull-out prevention function as defined in claim 2, wherein: processing circular arc R at a section of thick bamboo internal surface both ends of sleeve (8), improve the solidification strength of insulating varnish (9) and sleeve (8), the one end tip of sleeve (8) is equipped with the reducing ring, the retaining ring mounting groove is still processed to the section of thick bamboo surface of sleeve (8), trompil on motor terminal box wall (6), the hole size is supporting with sleeve (8), after passing the hole on motor terminal box wall (6) with sleeve (8), the reducing ring of sleeve (8) one end tip supports on motor terminal box wall (6) outside, installation retaining ring (7) in the retaining ring mounting groove, retaining ring (7) support on motor terminal box wall (6) are inboard, fix sleeve (8) on terminal box wall (6) from this.
9. The drop cable connector of claim 8, wherein: after the sleeve (8) is fixed on the wall (6) of the junction box, the barrel of the sleeve (8) in the junction box has a certain length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339571.XA CN112448527A (en) | 2020-11-25 | 2020-11-25 | Cable leading-in connector with pulling-out prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339571.XA CN112448527A (en) | 2020-11-25 | 2020-11-25 | Cable leading-in connector with pulling-out prevention function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112448527A true CN112448527A (en) | 2021-03-05 |
Family
ID=74738349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011339571.XA Pending CN112448527A (en) | 2020-11-25 | 2020-11-25 | Cable leading-in connector with pulling-out prevention function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112448527A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07312842A (en) * | 1994-05-16 | 1995-11-28 | Hitachi Ltd | Waterproof structure for tip of shielding signal wire of rotating machine |
| CN102957112A (en) * | 2012-10-12 | 2013-03-06 | 友力机电有限公司 | Waterproof electric cable junction box |
| CN103851559A (en) * | 2012-12-06 | 2014-06-11 | 深圳市海洋王照明工程有限公司 | Waterproof lamp and cable joint structure thereof |
| CN109061604A (en) * | 2018-08-29 | 2018-12-21 | 燕山大学 | A kind of explosion-proof casing of laser range finder |
-
2020
- 2020-11-25 CN CN202011339571.XA patent/CN112448527A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07312842A (en) * | 1994-05-16 | 1995-11-28 | Hitachi Ltd | Waterproof structure for tip of shielding signal wire of rotating machine |
| CN102957112A (en) * | 2012-10-12 | 2013-03-06 | 友力机电有限公司 | Waterproof electric cable junction box |
| CN103851559A (en) * | 2012-12-06 | 2014-06-11 | 深圳市海洋王照明工程有限公司 | Waterproof lamp and cable joint structure thereof |
| CN109061604A (en) * | 2018-08-29 | 2018-12-21 | 燕山大学 | A kind of explosion-proof casing of laser range finder |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210305 |