CN112952474A - Cable connector tailstock - Google Patents

Cable connector tailstock Download PDF

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Publication number
CN112952474A
CN112952474A CN202110173693.4A CN202110173693A CN112952474A CN 112952474 A CN112952474 A CN 112952474A CN 202110173693 A CN202110173693 A CN 202110173693A CN 112952474 A CN112952474 A CN 112952474A
Authority
CN
China
Prior art keywords
ring
gear
bottom ring
hole
cable connector
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.)
Granted
Application number
CN202110173693.4A
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Chinese (zh)
Other versions
CN112952474B (en
Inventor
李明成
谢义
方庆山
金敦水
耿晓明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Kangxin Electronic Technology Co ltd
Original Assignee
Anhui Kangxin Electronic Technology Co ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Anhui Kangxin Electronic Technology Co ltd filed Critical Anhui Kangxin Electronic Technology Co ltd
Priority to CN202110173693.4A priority Critical patent/CN112952474B/en
Publication of CN112952474A publication Critical patent/CN112952474A/en
Application granted granted Critical
Publication of CN112952474B publication Critical patent/CN112952474B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/56Means for preventing chafing or fracture of flexible leads at outlet from coupling part
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

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  • Jigs For Machine Tools (AREA)
  • Turning (AREA)

Abstract

The invention discloses a tail seat of a cable connector, which comprises an annular body detachably connected with the tail end of a shell of the cable connector, and is characterized in that: the tailstock also comprises a driving mechanism and a clamping plate; a bottom ring which is detachably connected with the annular body and is matched with the through hole is arranged in the through hole I of the annular body; the number of the clamping plates is multiple; and the clamping plates can move in the radial direction in the bottom ring through holes II under the driving of the driving mechanism, so that the circular size enclosed by the clamping plates and used for clamping the cable is changed. The invention is convenient to adjust and is suitable for clamping cables with different diameters.

Description

Cable connector tailstock
Technical Field
The invention relates to the technical field of cable connectors, in particular to a tailstock of a cable connector.
Background
The conventional tailstock of a cable connector generally comprises an annular body detachably connected with the tail end of a shell of the cable connector, after a cable is connected, the cable is easy to loosen at the tail end of the shell of the cable connector, and the cable is easy to loosen and often causes safety accidents.
Disclosure of Invention
In view of the technical problems in the background art, the invention provides a tail seat of a cable connector, which is convenient to adjust and is suitable for clamping cables with different diameters in a certain range. In order to achieve the purpose, the invention provides the following technical scheme:
a tail seat of a cable connector comprises an annular body detachably connected with the tail end of a cable connector shell, and the tail seat further comprises a driving mechanism and a plurality of clamping plates; a bottom ring which is detachably connected with the annular body and is matched with the through hole I is arranged in the through hole I of the annular body; and the clamping plates can move in the radial direction in the bottom ring through holes II under the driving of the driving mechanism, so that the circular size enclosed by the clamping plates and used for clamping the cable is changed.
The driving mechanism comprises a driving gear, a gear ring, a plurality of driven gears and a rack, wherein the outer side wall of the gear ring is meshed with the driving gear; an inner ring and an outer ring which are coaxial with the bottom ring are arranged on the end face of one side of the bottom ring; the inner ring and the outer ring are respectively and correspondingly and uniformly distributed with a plurality of grooves I penetrating through the inner ring and grooves II penetrating through the outer ring along the radial direction; each driven gear is rotationally and uniformly distributed on the bottom ring and between the inner ring and the outer ring; one end of each rack is arranged in the corresponding groove I and extends towards the bottom ring through hole II to be fixedly connected with the corresponding clamping plate, the other end of each rack is arranged in the corresponding groove II, and the middle part of each rack is meshed with the upper part of the corresponding driven gear; each rack can move along the corresponding groove I and groove II; the gear ring is rotatably arranged on the bottom ring and at a position between the inner ring and the outer ring; gear teeth are uniformly distributed on the inner side wall of the gear ring and are meshed with the lower parts of the driven gears.
A gap is formed between the two grooves II on the outer ring; gear teeth are uniformly distributed on the outer side wall of the gear ring; the bottom ring and the notch are rotatably provided with the driving gear meshed with gear teeth on the outer side of the gear ring;
the bottom ring is provided with a locking mechanism for locking the driving gear; the locking mechanism comprises a support block, a spring and a movable rod; one end of the supporting block is fixedly connected with the outer ring, and the other end of the supporting block is arranged above the driving gear; the supporting block is provided with a through hole which can accommodate the moving rod to move towards or away from the driving gear, and a circle of limiting groove which can accommodate the spring is arranged in the through hole; the movable rod is provided with a limit plate matched with the limit groove; the spring is sleeved on the outer periphery of the moving rod, one end of the spring is fixedly connected with the inner wall of one end of the limiting groove, and the other end of the spring is fixedly connected with the limiting plate; a plurality of grooves matched with one end of the moving rod close to the bottom ring are uniformly distributed on the end surface of one side, far away from the bottom ring, of the driving gear.
The tailstock further comprises an elastic clamp; the elastic clamp is V-shaped, and the top end of the elastic clamp is fixedly arranged on the other end face of the bottom ring; limiting columns are arranged on the outer sides of the tail ends of the two clamping pieces of the elastic clamp; the I inner wall of annular body through-hole is equipped with the draw-in groove of round and spacing post looks adaptation.
The tailstock also comprises a protective shell; the protective shell is cylindrical, the opening of the protective shell faces the annular body, and the protective shell is detachably arranged on the annular body; and the upper end surface of the protective shell is provided with a through hole III corresponding to the through hole II of the bottom ring.
And a silica gel gasket is arranged on each clamping plate.
The invention has the beneficial effects that:
1. the cable clamp has the advantages that the clamping plates move along the radial direction through the driving mechanism, so that the size of a circle formed by the clamping plates is changed, and the cable clamp is suitable for clamping cables with different diameters in a certain range;
2. the lower end of the moving rod is clamped or loosened by pulling or loosening the moving rod and compressing or resetting the spring, so that the driving gear is convenient to adjust;
3. the clamping pieces on the two sides of the elastic clamp are held, when the limiting columns on the clamping pieces correspond to the clamping grooves of the annular body, the elastic clamp is loosened, the limiting columns on the two clamping pieces are clamped in the clamping grooves of the annular body, the bottom ring is fixed with the annular body, and the bottom ring is detachably connected with the annular body, so that the installation or replacement is convenient;
4. be equipped with the silica gel gasket on the splint, prevent to harm the cable.
Drawings
FIG. 1 is a schematic front view of a tailstock according to the present invention;
FIG. 2 is a schematic view of the reverse structure of the tailstock according to the present invention;
FIG. 3 is a schematic view of the installation of the present invention;
FIG. 4 is a schematic structural view of the tailstock according to the present invention (omitting the protective casing);
FIG. 5 is a schematic view of the construction of the bottom ring of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is a schematic view of the internal structure of the supporting block of the present invention;
in the figure, 1-annular body, 101-clamping groove, 102-through hole I, 2-outer ring, 201-groove II, 202-notch, 3-gear ring, 4-driven gear, 5-rack, 6-clamping plate, 7-inner ring, 701-groove I, 8-bottom ring, 801-through hole II, 9-locking mechanism, 10-limiting column, 11-elastic clamp, 12-driving gear, 1201-groove, 13-supporting block, 1301-through hole, 1302-limiting groove, 14-moving rod, 15-spring, 16-limiting plate, 17-protective shell and 1701-through hole III.
Detailed Description
Referring to fig. 1 to 7, a tail seat of a cable connector includes an annular body 1 detachably connected to a tail end of a housing of the cable connector, and the tail seat further includes a driving mechanism and a clamping plate 6; a bottom ring 8 which is detachably connected with the annular body 1 and is matched with the through hole I102 is arranged in the through hole I102 of the annular body 1; a plurality of splints 6 are provided; the clamping plates 6 can move in the radial direction in the through holes II 801 of the bottom ring 8 under the driving of the driving mechanism, so that the circular size enclosed by the clamping plates 6 for clamping the cable is changed.
The driving mechanism comprises a driven gear 4, a rack 5 and a gear ring 3; an inner ring 7 and an outer ring 2 which are coaxial with the bottom ring 8 are arranged on the end surface of one side of the bottom ring 8; the inner ring 7 and the outer ring 2 are respectively and uniformly distributed with a plurality of grooves I701 penetrating through the inner ring 7 and grooves II 201 penetrating through the outer ring 2 along the radial direction; the driven gears 4 and the racks 5 are all provided in number; each driven gear 4 is rotationally and uniformly distributed on the bottom ring 8 and between the inner ring 7 and the outer ring 2; one end of each rack 5 is arranged in the corresponding groove I701 and extends towards the through hole II 801 of the bottom ring 8 to be fixedly connected with the corresponding clamping plate 6, the other end of each rack is arranged in the corresponding groove II 201, and the middle part of each rack is meshed with the upper part of the corresponding driven gear 4; each rack 5 can move along the corresponding groove I701 and groove II 201, and each rack 5 can move along the radial direction of the bottom ring 8; the gear ring 3 is rotatably arranged on the bottom ring 8 and between the inner ring 7 and the outer ring 2; the gear teeth are uniformly distributed on the inner side wall of the gear ring 3 and are meshed with the lower portion of each driven gear 4, the gear ring 3 rotates around the gear ring, each driven gear 4 meshed with the gear ring is driven to rotate, and therefore each rack 5 is driven to move along the corresponding groove I701 and the groove II 201.
A gap 202 is formed between the two grooves II 201 of the outer ring 2; gear teeth are uniformly distributed on the outer side wall of the gear ring 3; a driving gear 12 meshed with gear teeth on the outer side of the gear ring 3 is rotatably arranged on the bottom ring 8 and the notch 202, and the driving gear 12 rotates to drive the gear ring 3 meshed with the driving gear to rotate; the bottom ring 8 is provided with a locking mechanism 9 for locking the driving gear 12.
The locking mechanism 9 comprises a support block 13, a spring 15 and a movable rod 14; as shown in fig. 6-7, one end of the support block 13 is fixedly connected with the outer ring 2, and the other end is arranged above the driving gear 12; the supporting block 13 is provided with a through hole 1301 which can accommodate the moving rod to move towards or away from the driving gear, and a circle of limiting groove 1302 which can accommodate the spring is arranged in the through hole; the upper end and the lower end of the movable rod 14 are arranged in the through hole 1301 of the support block 13 and can move along the length direction of the through hole 1301, and the middle of the movable rod 14 is provided with a limit plate 16 matched with the limit groove 1302; the spring 15 is sleeved on the outer periphery of the movable rod 14, one end of the spring is fixedly connected with the inner wall of one side of the limiting groove 1302 of the support block 13, and the other end of the spring is fixedly connected with the limiting plate 16; a plurality of grooves 1201 which are matched with the movable rod 14 and close to one end of the bottom ring 8 are uniformly distributed on the end face, far away from the bottom ring 8, of the driving gear 12, in an initial state, the spring 15 is in an original state, the limiting plate 16 is abutted to the inner wall of the other side of the limiting groove 1302, one end, close to the bottom ring 8, of the movable rod 14 clamps the grooves 1201 in the driving gear 12, therefore, the driving gear 12 is locked, when the driving gear 12 needs to be adjusted, the movable rod 14 is lifted, the spring 15 is compressed, the limiting plate 16 moves towards the direction far away from the bottom plate in the limiting groove 1302, and one end, close to.
The tailstock also comprises an elastic clamp 11; the elastic clamp 11 is V-shaped, and the top end of the elastic clamp 11 is fixedly arranged on the other end face of the bottom ring 8; the other ends of the two clamping pieces of the elastic clamp 11 are provided with limiting columns 10 outwards; the I102 inner wall of annular body 1 through-hole is equipped with the draw-in groove 101 of round and spacing post 10 looks adaptation, holds between the fingers two clamping pieces of elastic clamp 11, and when spacing post 10 corresponds at annular body 1 draw-in groove 101 on the clamping piece, unclamps elastic clamp 11, and spacing post 10 card on two clamping pieces is in annular body 1 draw-in groove 101, and end ring 8 is fixed with annular body 1.
The tailstock also comprises a protective shell 17; the protective shell 17 is cylindrical, has an opening facing the annular body 1 and is detachably arranged on the annular body 1; the upper end face of the protective shell 17 is provided with a through hole III corresponding to the through hole II 801 of the bottom ring 8, and the protective shell 17 is used for preventing the inner parts of the driving mechanism from being influenced by dust and moisture.
And a silica gel gasket is arranged on each clamping plate 6 to prevent the cables from being damaged.
As shown in fig. 1-7, the working principle and flow of the present invention are as follows:
arrange end ring 8 in annular body 1 through-hole I102, hold between fingers two clamping pieces of elastic clamp 11, when spacing post 10 corresponds at annular body 1 draw-in groove 101 on the clamping piece, loosen elastic clamp 11, spacing post 10 card on two clamping pieces is in annular body 1 draw-in groove 101, and end ring 8 is fixed with annular body 1. At this time, the moving rod 14 is pulled, the spring 15 is compressed, the driving gear 12 is rotated to drive the gear ring 3 meshed with the driving gear 12 to rotate anticlockwise, each gear also rotates anticlockwise to drive each corresponding rack 5 to move outwards along each groove I701 and groove II 201 in the radial direction, each clamping plate 6 simultaneously moves outwards along the circle center of the bottom ring 8, the driving gear 12 is rotated reversely to drive the gear ring 3 meshed with the driving gear 12 to rotate clockwise, each gear also rotates clockwise to drive each corresponding rack 5 to move inwards along each groove I701 and groove II 201 in the radial direction, each clamping plate 6 simultaneously moves inwards along the circle center of the bottom ring 8, a cable passes through the through hole II 801 of the bottom ring 8 and the through hole III of the protective shell 17, each clamping plate 6 clamps the cable by adjusting the driving gear 12, after the adjustment is completed, the moving rod 14 is loosened, the spring 15 is reset, one end of the moving rod 14 close to the bottom ring 8 clamps the groove on the driving, the driving gear 12 is locked, so that the clamping plate 6 is locked, and the cable is clamped.

Claims (7)

1. The utility model provides a cable connector tailstock, includes the annular body of can dismantling the connection with cable connector casing tail end, its characterized in that: the tailstock also comprises a driving mechanism and a plurality of clamping plates; a bottom ring which is detachably connected with the annular body and is matched with the through hole I is arranged in the through hole I of the annular body; and the clamping plates can move in the radial direction in the bottom ring through holes II under the driving of the driving mechanism, so that the circular size enclosed by the clamping plates and used for clamping the cable is changed.
2. The cable connector tail stock of claim 1, wherein: the driving mechanism comprises a driving gear, a gear ring, a plurality of driven gears and a rack, wherein the outer side wall of the gear ring is meshed with the driving gear; an inner ring and an outer ring which are coaxial with the bottom ring are arranged on the end face of one side of the bottom ring; the inner ring and the outer ring are respectively and correspondingly and uniformly distributed with a plurality of grooves I penetrating through the inner ring and grooves II penetrating through the outer ring along the radial direction; each driven gear is rotationally and uniformly distributed on the bottom ring and between the inner ring and the outer ring; one end of each rack is arranged in the corresponding groove I and extends towards the bottom ring through hole II to be fixedly connected with the corresponding clamping plate, the other end of each rack is arranged in the corresponding groove II, and the middle part of each rack is meshed with the upper part of the corresponding driven gear; each rack can move along the corresponding groove I and groove II; the gear ring is rotatably arranged on the bottom ring and at a position between the inner ring and the outer ring; gear teeth are uniformly distributed on the inner side wall of the gear ring and are meshed with the lower parts of the driven gears.
3. The cable connector tail stock of claim 2, wherein: a gap is formed between the two grooves II on the outer ring; gear teeth are uniformly distributed on the outer side wall of the gear ring; the bottom ring and the gap are rotatably provided with the driving gear meshed with gear teeth on the outer side of the gear ring.
4. The cable connector tailstock according to claim 2 or 3, wherein: the bottom ring is provided with a locking mechanism for locking the driving gear; the locking mechanism comprises a support block, a spring and a movable rod; one end of the supporting block is fixedly connected with the outer ring, and the other end of the supporting block is arranged above the driving gear; the supporting block is provided with a through hole which can accommodate the moving rod to move towards or away from the driving gear, and a circle of limiting groove which can accommodate the spring is arranged in the through hole; the movable rod is provided with a limit plate matched with the limit groove; the spring is sleeved on the outer periphery of the moving rod, one end of the spring is fixedly connected with the inner wall of one end of the limiting groove, and the other end of the spring is fixedly connected with the limiting plate; a plurality of grooves matched with one end of the moving rod close to the bottom ring are uniformly distributed on the end surface of one side, far away from the bottom ring, of the driving gear.
5. The cable connector tail stock of claim 1, wherein: the tailstock further comprises an elastic clamp; the elastic clamp is V-shaped, and the top end of the elastic clamp is fixedly arranged on the other end face of the bottom ring; limiting columns are arranged on the outer sides of the tail ends of the two clamping pieces of the elastic clamp; the I inner wall of annular body through-hole is equipped with the draw-in groove of round and spacing post looks adaptation.
6. The cable connector tail stock of claim 1, wherein: the tailstock also comprises a protective shell; the protective shell is cylindrical, the opening of the protective shell faces the annular body, and the protective shell is detachably arranged on the annular body; and the upper end surface of the protective shell is provided with a through hole III corresponding to the through hole II of the bottom ring.
7. The cable connector tail stock of claim 1, wherein: and a silica gel gasket is arranged on each clamping plate.
CN202110173693.4A 2021-02-06 2021-02-06 Cable connector tailstock Active CN112952474B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110173693.4A CN112952474B (en) 2021-02-06 2021-02-06 Cable connector tailstock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110173693.4A CN112952474B (en) 2021-02-06 2021-02-06 Cable connector tailstock

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CN112952474A true CN112952474A (en) 2021-06-11
CN112952474B CN112952474B (en) 2022-09-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117140043A (en) * 2023-10-31 2023-12-01 中山市新银河传动实业有限公司 Extrusion assembly device for assembling transmission shaft

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566358A (en) * 1984-03-16 1986-01-28 Paul Ducanis Bar stock guide arrangement for screw machines
US20020003353A1 (en) * 2000-07-05 2002-01-10 Rainer Massow Gripper device for thin, plate-like parts
CN103917317A (en) * 2011-11-08 2014-07-09 Sms米尔股份有限公司 Chuck for a machine tool for machining a tubular, rotating workpiece
US20180195353A1 (en) * 2017-01-12 2018-07-12 Dreco Energy Services Ulc Apparatus and Methods for Gripping a Tubular Member
CN209730779U (en) * 2019-05-25 2019-12-03 浙江瑞艺电气科技有限公司 A kind of cable connector tailstock
CN110544907A (en) * 2019-07-31 2019-12-06 武汉船用机械有限责任公司 Cable fixing clamp
CN211123369U (en) * 2019-12-11 2020-07-28 苏州新大诚信息科技有限公司 Rubber-insulated-wire optical cable connector
CN211182769U (en) * 2020-01-03 2020-08-04 杭州创远电缆有限公司 Coaxial cable connector crimping device
CN111558908A (en) * 2020-04-02 2020-08-21 武汉船用机械有限责任公司 Cable fixing clamp
CN212063460U (en) * 2020-05-27 2020-12-01 青岛华迈电缆有限公司 Convenient cable connector

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566358A (en) * 1984-03-16 1986-01-28 Paul Ducanis Bar stock guide arrangement for screw machines
US20020003353A1 (en) * 2000-07-05 2002-01-10 Rainer Massow Gripper device for thin, plate-like parts
CN103917317A (en) * 2011-11-08 2014-07-09 Sms米尔股份有限公司 Chuck for a machine tool for machining a tubular, rotating workpiece
US20180195353A1 (en) * 2017-01-12 2018-07-12 Dreco Energy Services Ulc Apparatus and Methods for Gripping a Tubular Member
CN209730779U (en) * 2019-05-25 2019-12-03 浙江瑞艺电气科技有限公司 A kind of cable connector tailstock
CN110544907A (en) * 2019-07-31 2019-12-06 武汉船用机械有限责任公司 Cable fixing clamp
CN211123369U (en) * 2019-12-11 2020-07-28 苏州新大诚信息科技有限公司 Rubber-insulated-wire optical cable connector
CN211182769U (en) * 2020-01-03 2020-08-04 杭州创远电缆有限公司 Coaxial cable connector crimping device
CN111558908A (en) * 2020-04-02 2020-08-21 武汉船用机械有限责任公司 Cable fixing clamp
CN212063460U (en) * 2020-05-27 2020-12-01 青岛华迈电缆有限公司 Convenient cable connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117140043A (en) * 2023-10-31 2023-12-01 中山市新银河传动实业有限公司 Extrusion assembly device for assembling transmission shaft
CN117140043B (en) * 2023-10-31 2024-01-30 中山市新银河传动实业有限公司 Extrusion assembly device for assembling transmission shaft

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