CN112038781A - Locking wire contact piece for preventing screw from being separated - Google Patents
Locking wire contact piece for preventing screw from being separated Download PDFInfo
- Publication number
- CN112038781A CN112038781A CN202010925919.7A CN202010925919A CN112038781A CN 112038781 A CN112038781 A CN 112038781A CN 202010925919 A CN202010925919 A CN 202010925919A CN 112038781 A CN112038781 A CN 112038781A
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- CN
- China
- Prior art keywords
- screw
- hole
- square nut
- pin
- square
- Prior art date
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/302—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing loosening of screw or nut, e.g. vibration-proof connection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/16—End pieces terminating in a soldering tip or socket
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
Abstract
The invention discloses a locking wire contact element for preventing a screw from falling off, which comprises a contact element, a pin, a square nut and a screw, wherein a flange is arranged at one end of the screw, and an inner hexagon is arranged at the other end of the screw; according to the invention, the thickening layer is arranged on the square nut, and the threaded hole is arranged on the thickening layer, so that the effective number of turns of the threads on the threaded hole is ensured, the meshing strength of the screw and the threaded hole is enhanced, and the connection reliability of the locking wire contact piece is improved.
Description
Technical Field
The invention relates to the technical field of electric connectors, in particular to a locking wire contact member for preventing a screw from falling off, which is suitable for a large-current electric connector for locking a wire by using the screw on site.
Background
The power connector is one of connectors, and mainly provides a separable interface for power transmission of the whole electromechanical system, and with the development trend of the increase of the current capacity of the system and the miniaturization of the structure, the connector is required to have smaller contact resistance and more compact structural design.
At present, the connection mode of the cable and the contact element mainly comprises welding, compression joint and mechanical connection. The welding method is adopted for cable connection, so that the contact resistance is low, the connection is reliable, but the welding method is not suitable for occasions requiring on-site wiring, the welding process has high technical requirements on workers, cold welding is easy to occur, and internal stress is generated due to the fact that the welding flux and the base material are made of different materials in the using process. The crimping mode connecting cable is good in consistency, low in technical requirement on workers and suitable for being used for on-site wiring, but special tools are needed. The most important advantage of mechanical connection is the repeatability of connection, the cable can be repeatedly detachably mounted, a general tool or a simple special tool is adopted, the screw locking is a more common mode in mechanical connection, and the problem is that an anti-falling structure is not arranged, and the screw is easy to fall off or lose; because the effective number of turns of screw thread is not enough on the square nut, the smooth silk easily leads to screw thread intensity to weaken to make the connection reliability of lockwire contact piece reduce.
Disclosure of Invention
The invention aims at the defects of the prior art and provides a locking wire contact element for preventing a screw from falling off, which consists of a contact element, a pin, a square nut and a screw, wherein a flange is arranged at one end of the screw, and an inner hexagon is arranged at the other end of the screw; according to the invention, the thickening layer is arranged on the square nut, and the threaded hole is arranged on the thickening layer, so that the effective number of turns of the threads on the threaded hole is ensured, the meshing strength of the screw and the threaded hole is enhanced, and the connection reliability of the locking wire contact piece is improved.
The specific technical scheme for realizing the purpose of the invention is as follows:
a locking wire contact element for preventing a screw from falling off is characterized by comprising a contact element, a pin, a square nut and a screw;
the contact element is provided with a U-shaped insertion section, and two sides of the insertion section are provided with first pin holes;
the square nut is a rectangular cavity, orthogonal rectangular coordinates X, Y and a Z axis are arranged on the cavity, a round hole is arranged at one end along the X axis, a horizontal slot is arranged below the round hole, a square hole is arranged at the other end, a thickening layer is arranged above the square hole, and vertical slots are arranged at two sides of the thickening layer; second pin holes are formed in two sides of the intersection of the Y axis and the vertical slot; one end of the thickening layer along the Z axis is provided with a threaded hole, and the other end of the thickening layer is provided with a through hole;
one end of the screw is provided with a flange, and the other end of the screw is provided with an inner hexagon;
the inserting section of the contact element is inserted through the square hole of the square nut, two sides of the U-shaped inserting section are inserted into the vertical slots, the bottom surface of the U-shaped inserting section is inserted into the horizontal slots, and the first pin hole is aligned with the second pin hole;
the pin is two, and the pin is located the first pinhole of contact and the second pinhole of square nut.
The structure that the flange is arranged at one end of the screw and the inner hexagon is arranged at the other end of the screw is adopted, the flange of the screw is arranged in the cavity of the square nut, when the screw is loosened, the flange prevents the screw from being separated from the threaded hole of the square nut, when the screw is locked, the contact piece inserted and combined with the square nut blocks the through hole on the square nut, and the screw cannot be separated from the through hole; according to the invention, the thickening layer is arranged on the square nut, and the threaded hole is arranged on the thickening layer, so that the effective number of turns of the threads on the threaded hole is ensured, the meshing strength of the screw and the threaded hole is enhanced, and the connection reliability of the locking wire contact piece is improved.
Description of the drawings,
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of section A- -A of FIG. 1;
FIG. 3 is a schematic structural view of section B- -B of FIG. 1;
FIG. 4 is a schematic view of the contact of the present invention;
FIG. 5 is a schematic structural view of a square nut according to the present invention;
FIG. 6 is a schematic structural view of the screw of the present invention;
fig. 7 is a schematic view of the usage state of the present invention.
Detailed Description
Referring to fig. 1, 2 and 3, the present invention includes a contact member 11, a pin 12, a square nut 13 and a screw 14.
Referring to fig. 1 and 4, a U-shaped insertion section 111 is disposed on the contact member 11, and first pin holes 112 are disposed on two sides of the insertion section 111.
Referring to fig. 1, 2, 3 and 5, the square nut 13 is a rectangular cavity, which is provided with orthogonal rectangular coordinates X, Y and a Z axis, and a round hole 135 is provided at one end along the X axis, a horizontal slot 136 is provided below the round hole 135, a square hole is provided at the other end, a thickening layer 137 is provided above the square hole, and vertical slots 131 are provided at two sides of the thickening layer 137; second pin holes 134 are formed in two sides of the intersection of the Y axis and the vertical slot 131; one end of the thickened layer 137 along the Z-axis is provided with a threaded hole 133 and the other end is provided with a through hole 132.
Referring to fig. 1 and 6, one end of the screw 14 is provided with a flange 142, and the other end is provided with an inner hexagon 141;
referring to fig. 1, 2 and 3, the flange 142 of the screw 14 is located in the cavity of the square nut 13, and the screw 14 is engaged with the threaded hole 133;
the plug section 111 of the contact element 11 is inserted through the square hole of the square nut 13, two sides of the U-shaped plug section 111 are plugged with the vertical slot 131, the bottom surface of the U-shaped plug section 111 is plugged with the horizontal slot 136, and the first pin hole 112 is aligned with the second pin hole 134;
the pin 12 is two pieces, and the pin 12 is disposed in the first pin hole 112 of the contact member 11 and the second pin hole 134 of the square nut 13.
The invention works as follows:
referring to fig. 1, 2, 3 and 7, when the screw 14 is loosened, the flange 142 of the screw 14 prevents the screw 14 from being pulled out of the threaded hole 133 of the square nut 13, the cable is inserted into the circular hole 135 of the X-axis of the square nut 13 and the U-shaped insertion section 111 of the contact element 11, the screw 14 is tightened by the hexagonal socket 141 of the screw 14 with a hex wrench, and the cable is locked between the flange 142 of the screw 14 and the U-shaped insertion section 111 of the contact element 11, thereby completing the wire locking.
Referring to fig. 1, 2, 3 and 6, the invention adopts a structure that one end of the screw 14 is provided with a flange 142 and the other end is provided with an inner hexagon 141, the flange 142 of the screw 14 is arranged in the cavity of the square nut 13, when the screw 14 is loosened, the flange 142 prevents the screw 14 from being pulled out of the threaded hole 133 of the square nut 13, when the screw 14 is locked, the contact piece 11 inserted with the square nut 13 blocks the through hole 132 on the square nut 13, and the screw 14 cannot be pulled out of the through hole 132; the problem that the screw falls off or is lost in the screw locking process is solved;
referring to fig. 1, 2 and 3, the square nut 13 is provided with the thickening layer 137, and the threaded hole 133 is arranged on the thickening layer 137, so that the effective number of turns of the threads on the threaded hole 133 is ensured, the engagement strength of the screw 14 and the threaded hole is enhanced, and the connection reliability of the lockwire contact piece is improved.
Referring to fig. 1, 2, 3 and 4, in order to facilitate the insertion of the cable into the circular hole 135 of the X-axis of the square nut 13 and the U-shaped insertion section 111 of the contact element 11, the invention adopts the horizontal slot 136 arranged below the circular hole 135 of the square nut 13, so that the bottom surface of the U-shaped insertion section 111 of the contact element 11 is inserted into the horizontal slot 136, thereby facilitating the insertion of the cable into the U-shaped insertion section 111 of the contact element 11 and improving the reliability of the connection.
Referring to fig. 1 and 3, the square nut 13 of the present invention is made of powder metallurgy, and for facilitating the die pressing process, the second pin hole 134 of the square nut 13 is disposed to intersect with the vertical slot 131 along the Y axis, and the second pin hole 134 is disposed as a blind hole on both sides of the square hole, respectively, so as to facilitate the die pressing process.
Claims (1)
1. A locking wire contact member for preventing a screw from falling off is characterized by comprising a contact member (11), a pin (12), a square nut (13) and a screw (14);
the contact element (11) is provided with a U-shaped insertion section (111), and two sides of the insertion section (111) are provided with first pin holes (112);
the square nut (13) is a rectangular cavity, orthogonal rectangular coordinates X, Y and a Z axis are arranged on the cavity, a round hole (135) is arranged at one end along the X axis, a horizontal slot (136) is arranged below the round hole (135), a square hole is arranged at the other end, a thickening layer (137) is arranged above the square hole, and vertical slots (131) are arranged at two sides of the thickening layer (137); second pin holes (134) are arranged on two sides of the intersection of the Y axis and the vertical slot (131); one end of the thickening layer (137) along the Z axis is provided with a threaded hole (133), and the other end is provided with a through hole (132);
one end of the screw (14) is provided with a flange (142), and the other end of the screw is provided with an inner hexagon (141);
the flange (142) of the screw (14) is positioned in the cavity of the square nut (13), and the screw (14) is meshed with the threaded hole (133);
the inserting section (111) of the contact element (11) is inserted from a square hole of the square nut (13), two sides of the U-shaped inserting section (111) are inserted into the vertical slot (131), the bottom surface of the U-shaped inserting section (111) is inserted into the horizontal slot (136), and the first pin hole (112) is aligned to the second pin hole (134);
the number of the pins (12) is two, and the pins (12) are arranged in a first pin hole (112) of the contact element (11) and a second pin hole (134) of the square nut (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010925919.7A CN112038781B (en) | 2020-09-07 | 2020-09-07 | Locking wire contact piece for preventing screw from being separated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010925919.7A CN112038781B (en) | 2020-09-07 | 2020-09-07 | Locking wire contact piece for preventing screw from being separated |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112038781A true CN112038781A (en) | 2020-12-04 |
| CN112038781B CN112038781B (en) | 2022-02-15 |
Family
ID=73592188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010925919.7A Active CN112038781B (en) | 2020-09-07 | 2020-09-07 | Locking wire contact piece for preventing screw from being separated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112038781B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201340918Y (en) * | 2008-12-30 | 2009-11-04 | 邹海平 | Wall switch wire holder |
| CN101969164A (en) * | 2010-08-31 | 2011-02-09 | 上海航天科工电器研究院有限公司 | Cable connector plug |
| CN203929835U (en) * | 2014-07-03 | 2014-11-05 | 深圳深宝电器仪表有限公司 | A kind of connection box of electric energy meter terminal |
| CN110190411A (en) * | 2018-08-21 | 2019-08-30 | 中航光电科技股份有限公司 | A kind of electric connecting terminals |
| CN110854552A (en) * | 2019-10-17 | 2020-02-28 | 中航光电科技股份有限公司 | Wire pressing terminal |
-
2020
- 2020-09-07 CN CN202010925919.7A patent/CN112038781B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201340918Y (en) * | 2008-12-30 | 2009-11-04 | 邹海平 | Wall switch wire holder |
| CN101969164A (en) * | 2010-08-31 | 2011-02-09 | 上海航天科工电器研究院有限公司 | Cable connector plug |
| CN203929835U (en) * | 2014-07-03 | 2014-11-05 | 深圳深宝电器仪表有限公司 | A kind of connection box of electric energy meter terminal |
| CN110190411A (en) * | 2018-08-21 | 2019-08-30 | 中航光电科技股份有限公司 | A kind of electric connecting terminals |
| CN110854552A (en) * | 2019-10-17 | 2020-02-28 | 中航光电科技股份有限公司 | Wire pressing terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112038781B (en) | 2022-02-15 |
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