CN112290340B - Last cable preassemble screw thread external member of being qualified for next round of competitions of power equipment - Google Patents
Last cable preassemble screw thread external member of being qualified for next round of competitions of power equipment Download PDFInfo
- Publication number
- CN112290340B CN112290340B CN202011100410.5A CN202011100410A CN112290340B CN 112290340 B CN112290340 B CN 112290340B CN 202011100410 A CN202011100410 A CN 202011100410A CN 112290340 B CN112290340 B CN 112290340B
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- China
- Prior art keywords
- self
- locking joint
- guide
- moving contact
- fastening nut
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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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
- H01R4/58—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 characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses an outgoing cable preassembling thread external member on power equipment, belonging to the technical field of power facility installation tools; the device comprises a connecting screw and a fastening nut matched with the connecting screw; a self-locking joint is arranged on one side end face of the fastening nut; the moving contact is rotatably arranged on the self-locking connector; the movable contact and the self-locking joint are both provided with the fixed clamping pieces which are matched with each other, and the pressure spring is also arranged between the movable contact and the self-locking joint.
Description
Technical Field
The invention relates to the technical field of electric power facility installation tools, in particular to a pre-installed thread sleeve for an outgoing cable on electric power equipment.
Background
The installation of the grounding wire is a technical measure for ensuring the safety of operators, but for some switch cabinets in the transformer substation, because the line side disconnecting switches are compact in structure and longitudinally arranged, the space in the switch cabinets is limited, and the contact surfaces of the line side disconnecting switches are provided with cables and firm screws which are uneven and can not effectively or effectively install the line side grounding wire, so that the preassembled thread external member is specially designed for solving the problems.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a cable preassembling screw thread external member that is qualified for next round of competitions on electrical equipment to solve the current problem that the operation is inconvenient when carrying out the installation of earth connection to isolator device in the transformer substation in electric power system, work efficiency is poor.
In order to solve the problems, the invention provides the following technical scheme:
a pre-installed thread external member of an outgoing cable on power equipment comprises a connecting screw and a fastening nut matched with the connecting screw; a self-locking joint is arranged on one side end face of the fastening nut; the moving contact is rotatably arranged on the self-locking connector; the moving contact and the self-locking joint are both provided with fixed clamping pieces which are matched with each other, and a pressure spring is also arranged between the moving contact and the self-locking joint.
Preferably, the moving contact and the self-locking joint are of a circular truncated cone structure with the same section diameter.
Preferably, the moving contact and a fixed clamping piece on the self-locking joint have the same structure, and the fixed clamping piece comprises countersunk holes which are respectively formed in the end surfaces of the moving contact and the self-locking joint; the top of the side wall of the counter sink is provided with a plurality of groups of groove contact heads and limiting skirt rims in fan-shaped structures; the groove contact head extends outwards along the axis direction, the limiting skirt edge extends inwards along the radial direction, and the size of the groove on the groove contact head is consistent with the thickness of the limiting skirt edge; the size of an included angle between each group of groove contact heads and the limiting skirt edge is not smaller than the size of a fan-shaped angle of each groove contact head.
Furthermore, a guide circular truncated cone is respectively arranged on the moving contact and the self-locking joint; the guide circular truncated cone is arranged in the middle of the counter bore, and the end plane of the guide circular truncated cone and the end surfaces of the moving contact and the self-locking joint are positioned on the same plane; the end surface of the guide round platform positioned on the self-locking joint is also provided with a guide plug, and the axes of the guide plug and the corresponding guide round platform are coincided with the axis of the countersunk hole; the guide round platform on the moving contact is provided with a guide hole matched with the guide plug, so that the guide plug can rotate in the guide hole.
Further, the axis of the counter bore is coincident with the axis of the fastening nut.
Furthermore, the guiding plug is a gyro-shaped conical body component.
Furthermore, three groups of groove contact heads and limiting skirt edges are arranged on each fixing clamping piece; the size of a fan-shaped included angle of each groove contact head is 30 degrees, the size of an included angle of the limiting skirt edge is 35 degrees, and the size of an included angle between the limiting skirt edge and two adjacent groove contact heads is 15 degrees and 40 degrees respectively.
Preferably, the self-locking joint and the fastening nut are integrally formed components, the total length of the self-locking joint and the fastening nut is 65mm, and the fastening nut is an M12 long-hole nut with an internal thread section length of 50 mm.
The invention has the beneficial effects that:
the invention designs a contact type self-locking thread external member aiming at the installation of the existing outgoing cable grounding wire, and the contact type self-locking thread external member has the beneficial effects that:
1. the self-locking joint and the movable contact are provided with the grooves matched with each other and the clamping grooves corresponding to the limiting skirt edges, when the grounding wire is installed, the contact surface of the grounding wire can fall into the concave clamping groove only by rotating for an angle smaller than 90 degrees, and the grounding wire is well pressed and contacted under the action of the pressure spring, so that the grounding wire can be installed in one phase only in a few seconds; the operation time is short, the contact is good, the operation is simple and convenient without loosening, and the operation time and the labor intensity of operators are greatly saved;
2. the design of a gyro conical cylinder is adopted in the middle of the dynamic and static contact positions, so that the ground pile head can be smoothly inserted into the ground pile head of the pre-assembly by operating personnel during the installation of the ground wire;
3. the groove contact heads and the limiting skirt edges on the fixed clamping piece are reasonably distributed, and the device is convenient to realize positioning and installation.
Drawings
Fig. 1 is a schematic diagram of the device of the invention applied to a substation disconnecting switch in a specific manner in the embodiment;
FIG. 2 is a schematic connection diagram of the fixing member, the self-locking joint, the connecting nut and the connecting screw according to the present embodiment;
fig. 3 is a schematic connection diagram of the fixing clip, the moving contact and the pressure spring in the embodiment;
FIG. 4 is a schematic view of the installation of the inventive apparatus of this embodiment;
description of reference numerals: 1. the device comprises a connecting screw, 2 a fastening nut, 3 a guide hole, 4 a self-locking joint, 5 a moving contact, 6A fixing clamping piece, 6A a counter bore, 6B a groove contact head, 6C a limiting skirt edge, 7 a pressure spring, 8 a guiding circular truncated cone, 9 a guiding plug.
Detailed Description
The invention is further described with reference to the following figures and specific examples:
example (b):
referring to fig. 1, the present embodiment provides an outgoing cable pre-installation thread kit on a power device, which includes a connection screw 1 and a fastening nut 2 matched with the connection screw 1; a self-locking joint 4 is arranged on one side end face of the fastening nut 2; the moving contact 5 is rotatably arranged on the self-locking joint 4; the moving contact 5 and the self-locking joint 4 are both provided with fixed clamping pieces 6 which are matched with each other, and a pressure spring 7 is also arranged between the moving contact 5 and the self-locking joint 4.
The moving contact 5 and the self-locking joint 4 are of a circular truncated cone structure with the same section diameter.
The moving contact 5 and a fixed clamping piece 6 on the self-locking joint 4 have the same structure, and the fixed clamping piece 6 comprises a counter bore 6A which is respectively arranged on the end surfaces of the moving contact 5 and the self-locking joint 4; a plurality of groups of groove contact heads 6B and limiting skirt edges 6C which are in fan-shaped structures are arranged at the top of the side wall of the counter sink 6A; the groove contact head 6B extends outwards along the axis direction, the limiting skirt edge 6C extends inwards along the radial direction, and the size of the groove on the groove contact head 6B is consistent with the thickness of the limiting skirt edge 6C; the size of an included angle between each group of groove contact heads 6B and the limiting skirt edge 6C is not smaller than the size of a fan-shaped angle of each groove contact head 6B.
The moving contact 5 and the self-locking joint 4 are respectively provided with a guide circular truncated cone 8; the guide round platform 8 is arranged in the middle of the counter bore 6A, and the end plane of the guide round platform 8, the moving contact 5 and the end surface of the self-locking joint 4 are positioned on the same plane; a guide plug 9 is also arranged on the end face of the guide round table 8 positioned on the self-locking joint 4, and the axes of the guide plug 9 and the corresponding guide round table 8 are coincided with the axis of the countersunk hole 6A; the guide round platform 8 on the moving contact 5 is provided with a guide hole 3 matched with the guide plug 9, so that the guide plug 9 can rotate in the guide hole 3.
The axis of the counter bore 6A coincides with the axis of the fastening nut 2.
The guide plug 9 is a conical member in the form of a top.
Three groups of groove contact heads 6B and limiting skirt edges 6C are arranged on each fixed clamping piece 6; the size of a fan-shaped included angle of each groove contact head 6B is 30 degrees, the size of an included angle of the limiting skirt edge 6C is 35 degrees, and the size of included angles between the limiting skirt edge 6C and two adjacent groove contact heads 6B is 15 degrees and 40 degrees respectively.
The self-locking joint 4 and the fastening nut 2 are integrally formed components, the total length of the self-locking joint and the fastening nut 2 is 65mm, and the fastening nut 2 is an M12 long-hole nut with an internal thread section length of 50 mm.
When the device is used, the self-locking joint and the groove contact on the moving contact are respectively aligned to 40-degree angle positions formed between the groove contact 6B and the limiting skirt 6C on the opposite side, and the moving contact 5 is extruded to enable the compression spring 7 to contract; the moving contact 5 is rotated afterwards, so that the corresponding groove contact head 6B and the limiting skirt 6C are mutually matched and clamped, and after the moving contact 5 is loosened, the fixed clamping pieces are clamped together under the action of the restoring elasticity of the pressure spring 7, so that the installation of the device is completed.
Claims (5)
1. A pre-installed thread sleeve for an outgoing cable on power equipment comprises a connecting screw (1) and a fastening nut (2) matched with the connecting screw (1); the method is characterized in that: a self-locking joint (4) is arranged on one side end face of the fastening nut (2); the moving contact (5) is rotatably arranged on the self-locking joint (4); the moving contact (5) and the self-locking joint (4) are both provided with fixed clamping pieces (6) which are matched with each other, and a pressure spring (7) is also arranged between the moving contact (5) and the self-locking joint (4); the moving contact (5) and a fixed clamping piece (6) on the self-locking joint (4) have the same structure, and the fixed clamping piece (6) comprises counter bores (6A) which are respectively arranged on the moving contact (5) and the end face of the self-locking joint (4); a plurality of groups of groove contact heads (6B) and limiting skirt edges (6C) which are in fan-shaped structures are arranged at the top of the side wall of the counter sink (6A); the groove contact head (6B) extends outwards along the axis direction, the limiting skirt edge (6C) extends inwards along the radial direction, and the size of the groove on the groove contact head (6B) is consistent with the thickness of the limiting skirt edge (6C); the size of an included angle between each group of groove contact heads (6B) and the limiting skirt edge (6C) is not smaller than the size of a fan-shaped angle of each groove contact head (6B); a guide circular truncated cone (8) is respectively arranged on the moving contact (5) and the self-locking joint (4); the guide round table (8) is arranged in the middle of the counter bore (6A), and the end plane of the guide round table (8), the moving contact (5) and the end surface of the self-locking joint (4) are positioned on the same plane; the end face of the guide round table (8) positioned on the self-locking joint (4) is also provided with a guide plug (9), and the axes of the guide plug (9) and the corresponding guide round table (8) are coincided with the axis of the countersunk hole (6A); a guide hole (3) matched with the guide plug (9) is formed in a guide circular table (8) on the movable contact (5), so that the guide plug (9) can rotate in the guide hole (3); the axis of the counter bore (6A) is coincided with the axis of the fastening nut (2); the pressure spring (7) is arranged at the inner bottom side of the guide hole (3) and is connected with the end part of the guide plug (9).
2. An outlet cable pre-installation thread set on an electrical apparatus, as claimed in claim 1, wherein: the moving contact (5) and the self-locking joint (4) are of a circular truncated cone structure with the same section diameter.
3. An outlet cable pre-installation thread set on an electrical apparatus, as claimed in claim 1, wherein: the guide plug (9) is a top-shaped conical body component.
4. An outlet cable pre-installation thread set on an electrical apparatus, as claimed in claim 1, wherein: three groups of groove contact heads (6B) and limiting skirt edges (6C) on each fixed clamping piece (6) are provided; the size of a fan-shaped included angle of each groove contact head (6B) is 30 degrees, the size of an included angle of the limiting skirt edge (6C) is 35 degrees, and the size of an included angle between the limiting skirt edge (6C) and two adjacent groove contact heads (6B) is 15 degrees and 40 degrees respectively.
5. An outlet cable pre-installation thread set on an electrical apparatus, as claimed in claim 1, wherein: the self-locking joint (4) and the fastening nut (2) are integrally formed components, the total length of the self-locking joint and the fastening nut (2) is 65mm, and the fastening nut (2) is an M12 long-hole nut with an internal thread section length of 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011100410.5A CN112290340B (en) | 2020-10-15 | 2020-10-15 | Last cable preassemble screw thread external member of being qualified for next round of competitions of power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011100410.5A CN112290340B (en) | 2020-10-15 | 2020-10-15 | Last cable preassemble screw thread external member of being qualified for next round of competitions of power equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112290340A CN112290340A (en) | 2021-01-29 |
| CN112290340B true CN112290340B (en) | 2022-06-07 |
Family
ID=74496830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011100410.5A Active CN112290340B (en) | 2020-10-15 | 2020-10-15 | Last cable preassemble screw thread external member of being qualified for next round of competitions of power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112290340B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005071994A (en) * | 2003-08-22 | 2005-03-17 | Agilent Technol Inc | Locking precision male bnc connector with latch mechanism allowing rotation of cable |
| CN2772083Y (en) * | 2004-12-17 | 2006-04-12 | 胜利石油管理局地球物理勘探开发公司物探仪器管理中心 | Multi-core cable connection plug-in unit with positioning mark |
| CN102593620A (en) * | 2012-03-26 | 2012-07-18 | 安德鲁公司 | Fast self-lock thread coupling port connector mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3604214C2 (en) * | 1986-02-11 | 1995-03-16 | Hermann Holzmann | Cable gland |
| DE19510896C1 (en) * | 1995-03-24 | 1996-05-15 | Litton Precision Prod Int | Sealing cable entry for shielded cables |
| DE20211333U1 (en) * | 2002-07-26 | 2002-09-19 | Hummel Anton Verwaltung | Compression fitting with a screw sleeve, a counter sleeve and a clamping insert |
| CN104934767B (en) * | 2015-06-26 | 2017-05-31 | 朱招勇 | A kind of rotary self-locking formula directly pulls out arrangements of electric connection and its socket and plug |
| CN106324766B (en) * | 2016-10-11 | 2020-09-01 | 宁波展通电信设备股份有限公司 | Optical fiber pre-connecting piece and terminal box with same |
| CN106877236B (en) * | 2017-03-14 | 2018-09-14 | 刘义 | Rapid grounding line card has |
-
2020
- 2020-10-15 CN CN202011100410.5A patent/CN112290340B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005071994A (en) * | 2003-08-22 | 2005-03-17 | Agilent Technol Inc | Locking precision male bnc connector with latch mechanism allowing rotation of cable |
| CN2772083Y (en) * | 2004-12-17 | 2006-04-12 | 胜利石油管理局地球物理勘探开发公司物探仪器管理中心 | Multi-core cable connection plug-in unit with positioning mark |
| CN102593620A (en) * | 2012-03-26 | 2012-07-18 | 安德鲁公司 | Fast self-lock thread coupling port connector mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112290340A (en) | 2021-01-29 |
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