CN107404014B - Anti-loosening equipment cable clamp - Google Patents

Anti-loosening equipment cable clamp Download PDF

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Publication number
CN107404014B
CN107404014B CN201710605239.5A CN201710605239A CN107404014B CN 107404014 B CN107404014 B CN 107404014B CN 201710605239 A CN201710605239 A CN 201710605239A CN 107404014 B CN107404014 B CN 107404014B
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China
Prior art keywords
clamp body
cable
bolt
movable
equipment
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Active
Application number
CN201710605239.5A
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Chinese (zh)
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CN107404014A (en
Inventor
胡超强
尤占山
孙建吉
覃丹
陈雪儿
卢广业
张开拓
王延发
张仕欢
郝燕
邵源鹏
程雪丽
刘金勇
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Guangzhou Panyu Cable Group Co Ltd
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Guangzhou Panyu Cable Group Co Ltd
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Priority to CN201710605239.5A priority Critical patent/CN107404014B/en
Publication of CN107404014A publication Critical patent/CN107404014A/en
Application granted granted Critical
Publication of CN107404014B publication Critical patent/CN107404014B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual 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
    • H01R11/01Individual 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 characterised by the form or arrangement of the conductive interconnection between the connecting locations
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual 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
    • H01R11/03Individual 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 characterised by the relationship between the connecting locations
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/38Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/40Pivotable clamping member
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/38Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/42Clamping area to one side of screw only

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  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

The invention relates to the technical field of equipment wire clamps, in particular to an anti-loosening equipment wire clamp which comprises an equipment clamp and a cable clamp, wherein the equipment clamp comprises an equipment clamp body, a movable platen, a fastening bolt and an anti-loosening bolt; the cable clamp comprises a cable clamp body, a movable clamp head and a locking bolt, wherein the cable clamp body is provided with a locking screw hole and a static clamp head which are opposite to each other, the locking bolt penetrates through the locking screw hole and is rotatably connected with the movable clamp head, and the movable clamp head and the static clamp head are provided with wire pressing grooves. The invention has the advantages that the conductive contact area of the equipment terminal and the equipment wire clamp is large, the installation is firm and is not easy to loosen, the contact surface is not easy to generate gaps, and the invention is safe and reliable.

Description

Anti-loosening equipment cable clamp
Technical Field
The invention relates to the technical field of equipment wire clamps, in particular to an anti-loosening equipment wire clamp.
Background
The equipment clamp is used for the conductive connection between the equipment terminal of electrical equipment and the cable terminal, and the current equipment clamp generally directly adopts the bolt to directly connect the equipment terminal and the cable terminal equipped with the binding post together, and this kind of connected mode easily has following problem: the conductive contact area of the equipment terminal and the wiring terminal is small, bolt stress easily causes the deformation of the contact surface of the equipment terminal and the wiring terminal and a gap is generated, the time is long and easy to loose, the problems can cause the poor contact between the equipment terminal and the wiring terminal, the interface resistance is large, the temperature rise is large, and then the current overload operation is caused, and the potential safety hazard of electricity utilization is brought.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the anti-loosening equipment wire clamp which is large in conductive contact area and not easy to generate gaps.
The invention is realized by the following technical scheme:
a kind of anti-loose type apparatus fastener, including the apparatus used for connecting the terminal of the apparatus and cable clamp used for connecting the cable terminal, the said apparatus clamp includes the apparatus clamp body, dynamic pressure plate, fastening bolt and check bolt, the surface of the fastening bolt has positive external screw thread, the axle center of the fastening bolt has reverse internal screw thread holes too, the check bolt has reverse external screw thread cooperating with reverse internal screw thread hole, there are relative fastening screw hole and static pressure plate on the apparatus clamp body, the dynamic pressure plate is placed between fastening screw hole and static pressure plate and parallel to static pressure plate, there are first through hole and second through hole to the fastening screw hole on the static pressure plate, dynamic pressure plate separately, fastening bolt passes the fastening screw hole and threaded connection with it from one side of the apparatus clamp body, the tip of the fastening bolt inserts in the second through hole and carries on the rotatable connection with the dynamic pressure plate, the check bolt passes the first through hole and inserts in the reverse internal screw thread hole from another side of the apparatus clamp body and carries on the reverse threaded connection with the fastening bolt; the cable clamp comprises a cable clamp body, a movable chuck and a locking bolt, the cable clamp body and the equipment clamp body are of an integrated structure or a mutually independent structure fixedly connected, the cable clamp body is provided with a relative locking screw hole and a static chuck, the movable chuck is arranged between the locking screw hole and the static chuck and is arranged relative to the static chuck, the locking bolt penetrates through the locking screw hole from one side of the cable clamp body and is in threaded connection with the movable chuck after passing through the locking screw hole, and at least one pair of corresponding line pressing grooves are formed in opposite surfaces of the movable chuck and the static chuck respectively.
Preferably, the locking bolt and the movable chuck are rotatably connected and then provided with an extension section, the extension section penetrates through the other side of the cable clamp body opposite to the locking screw hole, and is in threaded connection with the cable clamp body through the anti-loosening screw hole formed in the cable clamp body or the anti-loosening nut arranged on the outer side of the cable clamp body.
Preferably, a first pre-tightening spring is arranged outside the fastening bolt, two ends of the first pre-tightening spring are respectively pressed on the movable platen and the equipment clamp body, and the pre-tightening force of the first pre-tightening spring on the movable platen faces the static pressure plate; and/or a second pre-tightening spring is arranged outside the locking bolt, two ends of the second pre-tightening spring are respectively pressed on the movable chuck and the cable clamp body, and the pre-tightening force of the second pre-tightening spring opposite to the movable chuck faces the static chuck.
Preferably, the fastening bolt and the movable platen are rotatably connected in a manner that: the end part of the fastening bolt is provided with a first ring groove 133, the movable platen is provided with a pair of first pin holes and corresponding first pins, and the two first pins respectively penetrate through the corresponding first pin holes and are respectively embedded into two sides of the first ring groove 133; and/or the locking bolt and the movable chuck are rotatably connected in the following mode: the surface of the locking bolt is provided with a second annular groove, the movable chuck is provided with a pair of second pin holes and corresponding second pins, and the two second pins respectively penetrate through the corresponding second pin holes and are respectively embedded into two sides of the second annular groove.
Preferably, the anti-loosening equipment cable clamp further comprises an insulating shell, the insulating shell is coated on the outer surfaces of the equipment clamp body and the cable clamp body, an equipment terminal insertion hole is formed in the position, corresponding to the position between the movable clamp and the static pressure plate, of the insulating shell, a cable wiring end insertion hole is formed in the position, corresponding to the position between the movable clamp and the static clamp, of the insulating shell, and a fastening bolt cover, a locking bolt cover and an anti-loosening bolt cover are detachably connected to the positions, corresponding to the fastening bolt, the locking bolt and the anti-loosening bolt, of the insulating shell respectively.
Preferably, the cable terminal insertion opening is of a cylindrical structure, and an elastic protective film with an opening in the middle is arranged on the inner surface of the cylindrical structure.
Preferably, the opposing surfaces of the movable platen and the static pressure plate are parallel to each other and smooth in surface.
Preferably, the surface of the movable platen and/or the static platen is made of a soft conductive material.
Preferably, the soft conductive material is phosphor copper.
Preferably, the line ball groove is concave arc structure or the shape structure of bending that can at least two sides and cable contact, and line ball groove surface still is equipped with along the anti-skidding line of cable insertion direction.
The anti-loosening equipment wire clamp has the beneficial effects that: (1) when in use, the equipment terminal is arranged between the movable pressing plate and the static pressing plate which are parallel to each other, and the conductive contact area is large; (2) the pressing plate is pressed through the fastening bolt to enable the pressing plate to tightly press the equipment terminal, and the anti-loosening bolt is arranged to prevent the fastening bolt from loosening; (3) when the check bolt is used, the check bolt penetrates through a reserved mounting hole in the equipment terminal, so that the equipment terminal can be prevented from sliding out from between the driven pressing plate and the static pressure plate; (4) the anti-loosening bolt and the fastening bolt are detachable and mutually independent structures, and the end part of the fastening bolt is abutted to the movable platen, so that the terminal of the equipment is convenient to mount or dismount; (5) the locking bolts are respectively in threaded connection with two opposite ends of the cable clamp body, so that the locking bolts are prevented from loosening; (6) the first pre-tightening spring and/or the second pre-tightening spring are/is arranged, so that the movable platen and/or the movable chuck can be pre-tightened to prevent the movable platen or the movable chuck from loosening; (7) the surfaces of the movable pressing plate and/or the static pressing plate are made of soft conductive materials, the movable pressing plate and/or the static pressing plate can be fully contacted when pressing the equipment terminal, small gaps are avoided on the contact surface, and the copper-aluminum transition problem can be avoided by adopting a phosphorus-copper material.
The conception, specific structure and effects of the present invention will be further described in conjunction with the accompanying drawings to fully understand the objects, features and effects of the present invention.
Drawings
FIG. 1 is one of the schematic structural views of a slack-proof equipment clamp of the present invention;
FIG. 2 is a second schematic structural view of a loose-proof equipment clamp of the present invention;
FIG. 3 is an exploded view of a slack-proof device clamp of the present invention;
FIG. 4 is a reference structure diagram of the use state of the anti-loosening equipment wire clamp;
FIG. 5 is one of the schematic structural views of a locking type equipment clamp with an insulating housing according to the present invention;
FIG. 6 is a second schematic view of a locking type equipment clamp of the present invention with an insulating housing;
FIG. 7 is a schematic view of the structure of the device terminal;
FIG. 8 is a schematic structural view of a cable termination;
wherein: 11-device clamp body, 111-fastening screw hole, 112-static pressure plate, 1121-first through hole, 12-dynamic pressure plate, 121-second through hole, 122-first pin hole, 123-first pin, 13-fastening bolt, 131-forward external thread, 132-reverse internal thread hole, 133-first ring groove, 14-check bolt, 141-reverse external thread, 15-first pre-tightening spring, 21-cable clamp body, 211-locking screw hole, 212-static chuck, 22-dynamic chuck, 221-second pin hole, 222-second pin, 23-locking bolt, 231-extension section, 232-second ring groove, 241, 242-wire-pressing groove, 243-anti-slip, 25-line check nut, 26-second pre-tightening spring, 3-insulating shell, 31-device terminal insertion port, 32-cable insertion port terminal, 321-elastic protection film, 33-fastening bolt cover, 34-locking bolt cover, 35-bolt cover, 4-device terminal, 5-cable terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the description of the specific embodiments is intended to be illustrative of the invention and is not intended to limit the invention.
It should be noted that the terms "first" and "second" are used for descriptive purposes only for distinguishing and not to indicate or imply a quantity or order of technical features.
As shown in fig. 1 to 8, a locking type apparatus clamp comprising an apparatus clamp for connecting an apparatus terminal and a cable clamp for connecting a cable terminal, the apparatus clamp comprising an apparatus clamp body 11, a movable platen 12, a fastening bolt 13 and a locking bolt 14, the fastening bolt 13 having an outer surface provided with a forward external thread 131, the fastening bolt 13 further having an axial center provided with a reverse internal thread hole 132, the locking bolt 14 having a reverse external thread 141 fitted to the reverse internal thread hole 132, the apparatus clamp body 11 having opposite fastening screw holes 111 and a static pressure plate 112, the movable platen 12 being disposed between the fastening screw holes 111 and the static pressure plate 112 and being parallel to the static pressure plate 112, the static pressure plate 112 and the movable platen 12 being respectively provided with a first through hole 1121 and a second through hole 121 which face the fastening screw holes 111, the fastening bolt 13 being passed through the fastening screw holes 111 from one side of the apparatus clamp body 11 and being screw-coupled thereto, an end portion of the fastening bolt 13 being inserted into the second through hole 121 and being rotatably coupled to the internal thread hole 13 from the other side of the apparatus clamp body 11; the cable clamp comprises a cable clamp body 21, a movable chuck 22 and a locking bolt 23, the cable clamp body 21 and the equipment clamp body 11 are of an integrally formed structure or a mutually independent structure fixedly connected, the cable clamp body 21 is provided with a relative locking screw hole 211 and a static chuck 212, the movable chuck 22 is arranged between the locking screw hole 211 and the static chuck 212 and is arranged relative to the static chuck 212, the locking bolt 23 penetrates through the locking screw hole 211 from one side of the cable clamp body 21 and is in threaded connection with the locking screw hole, the locking bolt is rotatably connected with the movable chuck 22, two corresponding line pressing grooves 241 and 242 are respectively arranged on the opposite surfaces of the movable chuck 22 and the static chuck 212, the two line pressing grooves 241 and 242 are different in size and are respectively suitable for cable terminals in different diameter ranges.
When the equipment terminal 4 is installed, the equipment terminal 4 is inserted between the movable platen 12 and the static pressure plate 112, the check bolt 14 sequentially passes through one side of the equipment clamp, the static pressure plate 112 and the installation hole reserved on the equipment terminal 4 and then is inserted into the reverse threaded hole of the fastening bolt 13, the fastening bolt 13 is screwed to drive the movable platen 12 to be matched with the static pressure plate 112 to press the equipment terminal 4 tightly, then the check bolt 14 is screwed until the bolt head 142 of the check bolt is tightly attached to the equipment clamp, because the screwing direction of the check bolt 14 is opposite to that of the fastening bolt 13, when the fastening bolt 13 is unscrewed (anticlockwise) relative to the equipment clamp, the check bolt 14 is screwed relatively, namely the check bolt 14 must be dismounted first to unscrew the fastening bolt 13, and therefore, the situation that the equipment terminal 4 is not clamped tightly due to looseness caused by stress fluctuation, shaking and other factors in the use process of the fastening bolt 13 can be prevented.
When the cable terminal 5 is installed, the cable terminal 5 is inserted between the line pressing grooves of the movable chuck 22 and the static chuck 212, the locking bolt 23 is screwed to drive the movable chuck 22 to move towards the static chuck 212 until the movable chuck 22 and the static chuck 212 clamp the cable terminal 5 in the line pressing grooves, and the equipment terminal 4 and the cable terminal 5 are in conductive connection through the equipment clamp.
Preferably, after the locking bolt 23 is rotatably connected with the movable chuck 22, an extension 231 is further provided, and the extension 231 passes through the other side of the cable clamp body 21 opposite to the locking screw hole 211 and is in threaded connection with the cable clamp body 21 through a locking nut 25 arranged on the outer side of the cable clamp body 21; one end of the locking bolt 23 is in threaded connection with one side of the cable clamp body 21, and the other end of the locking bolt is in threaded connection with the other side of the cable clamp body 21 through the extension 231 thereof, so that the locking bolt 23 can be effectively prevented from loosening.
Preferably, a first pre-tightening spring 15 is arranged outside the fastening bolt 13, two ends of the first pre-tightening spring 15 are respectively pressed on the movable platen 12 and the equipment clamp body 11, and the pre-tightening force of the first pre-tightening spring 15 on the movable platen 12 is towards the static pressure plate 112; a second pre-tightening spring 26 is arranged outside the locking bolt 23, two ends of the second pre-tightening spring 26 are respectively pressed on the movable chuck 22 and the cable clamp body 21, and the pre-tightening force of the second pre-tightening spring 26 on the movable chuck 22 faces the static chuck 212; the first pre-tightening spring 15 applies pre-tightening pressure towards the static pressure plate 112 to the movable pressure plate 12, so that the movable pressure block can be attached to the equipment terminal 4 more tightly, the movable pressure block and the fastening bolt 13 are prevented from loosening, the second pre-tightening spring 26 applies pre-tightening pressure towards the static chuck 212 to the movable chuck 22, the movable chuck 22 can be pressed to the cable connector lug more tightly, and the Song's chuck and the locking bolt 23 are prevented from loosening.
Preferably, the fastening bolt 13 and the movable platen 12 are rotatably connected by: the end of the fastening bolt 13 is provided with a first ring groove 133, the movable platen 12 is provided with a pair of first pin holes 122 and corresponding first pins 123, the two first pins 123 respectively penetrate through the corresponding first pin holes 122 and are respectively embedded into two sides of the first ring groove 133, and the fastening bolt 13 can only rotate relative to the movable platen 12 and cannot generate axial relative displacement relative to the movable platen 12 under the limitation of the first pins 123; the locking bolt 23 and the movable chuck 22 are rotatably connected in the following manner: the surface of the locking bolt 23 is provided with a second annular groove 232, the movable chuck 22 is provided with a pair of second pin holes 221 and corresponding second pins 222, the two second pins 222 respectively pass through the corresponding second pin holes 221 and are respectively embedded into two sides of the second annular groove 232, and the locking bolt 23 can only rotate relative to the movable chuck 22 but cannot axially displace relative to the movable chuck 22 under the limitation of the second pins 222. The structure is simple and firm, the processing is simple, and the use is convenient.
Preferably, the anti-loose type equipment wire clamp further comprises an insulating housing 3, the insulating housing 3 is coated on the outer surfaces of the equipment clamp body 11 and the cable clamp body 21, an equipment terminal insertion hole 31 is formed in the position, corresponding to the position between the movable platen 12 and the static pressure plate 112, of the insulating housing 3, a cable terminal insertion hole 32 is formed in the position, corresponding to the position between the movable chuck 22 and the static chuck 212, of the insulating housing 3, a fastening bolt cover 33, a locking bolt cover 34 and an anti-loose bolt cover 35 are detachably connected to the positions, corresponding to the fastening bolt 13, the locking bolt 23 and the anti-loose bolt 14, of the insulating housing 3, the integral type insulating housing 3 is tightly attached to the outer surface of the equipment wire clamp, the protective performance is good, the space is not occupied, the anti-loose performance is not easy to fall off, a detachable cover is arranged on the insulating housing 3 corresponding to a part needing to be assembled and disassembled, and the use is convenient.
Preferably, the cable terminal insertion opening 32 is a cylindrical structure, an elastic protection film 321 with an opening in the middle is arranged on the inner surface of the cylindrical structure, and when the cable terminal insertion opening is used, the elastic protection film 321 is tightly attached to the surface of the cable insulation sheath, so that sealing to a certain degree is realized, and impurities such as water vapor and dust are prevented from entering the interior of the cable terminal insertion opening.
Preferably, the opposite surfaces of the movable platen 12 and the static pressure plate 112 are parallel to each other and have smooth surfaces, so that the movable platen 12 and the static pressure plate 112 can be tightly attached to the two surfaces of the equipment terminal 4 without any gap.
Preferably, the surface of the movable platen 12 and/or the static pressure plate 112 is made of a soft conductive material, preferably a phosphor copper material, and can be fully contacted when the equipment terminal 4 is pressed, so that a small gap is avoided at the contact surface, and the phosphor copper material can avoid the problem of copper-aluminum transition.
Preferably, the crimping grooves 241, 242 are concave arc structures, and the crimping grooves 241, 242 surface still is equipped with the anti-skidding line 243 along the cable plug-in direction, and the advantage of this structure is that the cable connector centre gripping is more firm, and the electrically conductive core of cable is the gathering of stranded thin copper line and forms, and the anti-skidding line 243 along the cable direction can make the electrically conductive core of cable contact inseparabler with the crimping groove contact, and area of contact is bigger.
Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Claims (9)

1. A kind of anti-loosing type apparatus fastener, characterized by, including the apparatus used for connecting the terminal of the apparatus and cable clamp used for connecting the terminal of the cable, the said apparatus clamp includes the apparatus clamp body, movable platen, fastening bolt and anti-loosing bolt, the external surface of the fastening bolt has forward external screw thread, the axle center of the fastening bolt also has reverse internal screw thread holes, the anti-loosing bolt has reverse external screw thread matching with reverse internal screw thread hole, there are relative fastening screw hole and static pressure plate on the apparatus clamp body, the movable platen locates between fastening screw hole and static pressure plate and is parallel to static pressure plate, there are first through hole and second through hole to the fastening screw hole on the static pressure plate, movable platen separately, fastening bolt crosses the fastening screw hole and connects with its whorl from one side of the apparatus clamp body, the tip of the fastening bolt inserts in the second through hole and carries on the rotatable connection with the movable platen, the anti-loosing bolt crosses the first through hole and inserts in the reverse internal screw thread hole from another side of the apparatus clamp body and carries on the reverse whorl connection with the fastening bolt; the cable clamp comprises a cable clamp body, a movable chuck and a locking bolt, the cable clamp body and the equipment clamp body are of an integrally formed structure or a mutually independent structure fixedly connected, the cable clamp body is provided with a locking screw hole and a static chuck which are opposite, the movable chuck is arranged between the locking screw hole and the static chuck and is opposite to the static chuck, the locking bolt penetrates through the locking screw hole from one side of the cable clamp body and is in threaded connection with the locking screw hole, the locking bolt is rotatably connected with the movable chuck, the opposite surfaces of the movable chuck and the static chuck are respectively provided with at least one pair of corresponding wire pressing grooves, the fastening bolt is externally provided with a first pre-tightening spring, two ends of the first pre-tightening spring are respectively tightly pressed on the movable platen and the equipment clamp body, and the pre-tightening force of the first pre-tightening spring on the movable platen faces the static platen; and/or a second pre-tightening spring is arranged outside the locking bolt, two ends of the second pre-tightening spring are respectively pressed on the movable chuck and the cable clamp body, the pre-tightening force of the second pre-tightening spring opposite to the movable chuck faces the static chuck, and a cavity which is communicated with each other is formed in the equipment clamp body and the cable clamp body.
2. The anti-loosening equipment clamp according to claim 1, wherein an extension section is further provided after the locking bolt is rotatably connected with the movable clamping head, passes through the other side of the cable clamp body opposite to the locking screw hole, and is in threaded connection with the cable clamp body through an anti-loosening screw hole formed in the cable clamp body or a locking nut arranged on the outer side of the cable clamp body.
3. The looseness-preventing equipment clamp according to claim 1, wherein the fastening bolt is rotatably coupled to the movable platen in such a manner that: the end part of the fastening bolt is provided with a first ring groove, the movable platen is provided with a pair of first pin holes and corresponding first pins, and the two first pins respectively penetrate through the corresponding first pin holes and are respectively embedded into two sides of the first ring groove; and/or the locking bolt and the movable chuck are rotatably connected in the following mode: the surface of the locking bolt is provided with a second annular groove, the movable chuck is provided with a pair of second pin holes and corresponding second pins, and the two second pins respectively penetrate through the corresponding second pin holes and are respectively embedded into two sides of the second annular groove.
4. A locking type equipment clamp according to any one of claims 1 to 3, further comprising an insulating housing covering the outer surfaces of the equipment clamp body and the cable clamp body, wherein an equipment terminal insertion opening is provided at a position corresponding to a position between the movable platen and the static platen on the insulating housing, a cable terminal insertion opening is provided at a position corresponding to a position between the movable chuck and the static chuck on the insulating housing, and a fastening bolt cover, a locking bolt cover and a locking bolt cover are detachably connected to positions corresponding to the fastening bolt, the locking bolt and the locking bolt on the insulating housing, respectively.
5. A slack-preventing type equipment clamp as claimed in claim 4, wherein the cable terminal insertion opening is a cylindrical structure, an inner surface of which is provided with an elastic protection film opened in the middle.
6. A looseness-preventing type equipment clamp according to any one of claims 1 to 3, wherein opposite surfaces of said movable platen and said static pressure plate are parallel to each other and have smooth surfaces.
7. A looseness-preventing type equipment clip according to any one of claims 1 to 3, wherein a surface of said movable platen and/or said static platen is a soft conductive material.
8. The anti-loosening device clamp according to claim 7, wherein the soft conductive material is phosphor copper.
9. The anti-loosening equipment cable clamp according to any one of claims 1 to 3, wherein the cable pressing groove is of a concave arc structure or a bent structure at least two surfaces of which can be in contact with a cable, and anti-slip lines along the cable insertion direction are further arranged on the surface of the cable pressing groove.
CN201710605239.5A 2017-07-21 2017-07-21 Anti-loosening equipment cable clamp Active CN107404014B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710605239.5A CN107404014B (en) 2017-07-21 2017-07-21 Anti-loosening equipment cable clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710605239.5A CN107404014B (en) 2017-07-21 2017-07-21 Anti-loosening equipment cable clamp

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Publication Number Publication Date
CN107404014A CN107404014A (en) 2017-11-28
CN107404014B true CN107404014B (en) 2022-11-29

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CN110060909A (en) * 2019-04-02 2019-07-26 波普电气有限公司 The fast wiring construction of breaker
CN111952914A (en) * 2020-09-14 2020-11-17 滨州市富阳电力科技有限公司 Cable clamp for lowering service wire
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