CN112636286B - Prevent insulating strain clamp tied in a bundle of deformation - Google Patents

Prevent insulating strain clamp tied in a bundle of deformation Download PDF

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Publication number
CN112636286B
CN112636286B CN202011622943.XA CN202011622943A CN112636286B CN 112636286 B CN112636286 B CN 112636286B CN 202011622943 A CN202011622943 A CN 202011622943A CN 112636286 B CN112636286 B CN 112636286B
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China
Prior art keywords
plate
clamping plate
strain clamp
clamp
movable clamping
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CN202011622943.XA
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CN112636286A (en
Inventor
金浩
金宝洁
闫昌干
何伟
蔡宇
黄豪威
林巍
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Zhongwang Electric Power Technology Co ltd
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Zhongwang Electric Power Technology Co ltd
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Priority to CN202011622943.XA priority Critical patent/CN112636286B/en
Publication of CN112636286A publication Critical patent/CN112636286A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/02Devices for adjusting or maintaining mechanical tension, e.g. take-up device
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/04Arrangements or devices for relieving mechanical tension
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/05Suspension arrangements or devices for electric cables or lines
    • H02G7/053Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/14Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound

Abstract

The invention discloses a cluster insulation strain clamp capable of preventing deformation, which comprises a connecting plate, fixed clamping plates fixedly connected with the top surface and the bottom surface of the connecting plate, and movable clamping plates movably mounted at the upper fixed clamping plate and the lower fixed clamping plate, wherein the movable clamping plates are movably connected with the fixed clamping plates through connecting components; the connecting assembly comprises a connecting screw fixed on the connecting plate and penetrating through the fixed clamping plate and the movable clamping plate, a cover plate sleeved on the outer diameter of the connecting screw and movably connected with the movable clamping plate, and a nut used for screwing and fixing the outer end of the cover plate, the movable clamping plate is provided with a mounting hole corresponding to the connecting screw, a mounting tube is fixedly embedded in the mounting hole, and an arc-shaped spring piece is welded on the inner wall of the mounting tube; according to the invention, the mounting cylinder and the arc-shaped spring piece are arranged between the connecting screw rod and the movable clamping plate, when the movable clamping plate is pulled, the movable clamping plate moves relative to the connecting plate, and at the moment, the arc-shaped spring piece is deformed to buffer, so that the strain clamp is prevented from being damaged by overlarge external force, and the normal use of the strain clamp is ensured.

Description

Prevent insulating strain clamp tied in a bundle of deformation
Technical Field
The invention relates to the technical field of power equipment, in particular to a cluster insulated strain clamp capable of preventing deformation.
Background
The strain clamp is a hardware fitting used for fixing cables to bear the tension of the cables and hanging the cables on a strain insulator-string group or a tower, the four-core cluster strain clamp is one of the four-core cluster strain clamp, a four-core and groove structure is adopted, after four insulated cables are clamped in the four insulated cables, bolts are screwed, the four clamped cables can be bundled, and after the pull ring is fixed, the four insulated cables can be tensioned and fixed, and a larger holding power is obtained.
However, after the bunched tension-resistant cable clamp in the current market clamps a cable, when the bunched tension-resistant cable clamp is pulled by external force, the bunched tension-resistant cable clamp is connected and fastened, and is easy to deform due to overlarge external force, so that a connecting part is damaged, and the normal use of the tension-resistant cable clamp is influenced.
Disclosure of Invention
The invention provides a cluster insulation strain clamp capable of preventing deformation, which can effectively solve the problem that after a cable is clamped by the cluster insulation strain clamp in the background technology, when the cluster insulation strain clamp is pulled by external force, the connection is fastened, and the cluster insulation strain clamp is easy to deform due to excessive external force, so that the connection part is damaged, and the normal use of the strain clamp is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a cluster insulation strain clamp capable of preventing deformation comprises a connecting plate, fixed clamping plates fixedly connected with the top surface and the bottom surface of the connecting plate, and movable clamping plates movably mounted at the upper fixed clamping plate and the lower fixed clamping plate, wherein the movable clamping plates are movably connected with the fixed clamping plates through connecting components; the connecting assembly comprises a connecting screw rod fixed on the connecting plate and penetrating through the fixed clamping plate and the movable clamping plate, a cover plate sleeved on the outer diameter of the connecting screw rod and movably connected with the movable clamping plate, and a nut used for screwing and fixing the outer end of the cover plate; the movable clamping plate is provided with a mounting hole corresponding to the connecting screw rod, an installation cylinder is fixedly embedded in the mounting hole, and arc-shaped spring pieces are uniformly welded on the inner wall of the installation cylinder.
The movable clamping plate is connected with the cover plate in a sliding mode through the balls; a sliding groove is formed in the connecting side of the fixed clamping plate and the movable clamping plate; an arc-shaped antiskid plate is slidably mounted inside the sliding groove.
The fixing clamp plate is provided with a corresponding hole corresponding to the connecting screw rod, and the diameter of the connecting screw rod is equal to that of the corresponding hole.
The two ends of the installation cylinder are flush with the top surface and the bottom surface of the movable clamping plate respectively, and the end part of the installation cylinder, far away from the connecting plate, is in contact with the cover plate.
And a sealing rubber gasket is bonded at the position of the cover plate close to the movable clamping plate.
The connecting plate is provided with a U-shaped frame on the outer side, the end part of the side surface of the connecting plate is provided with a fastening assembly, the fastening assembly comprises a deformation hole arranged in the middle of the connecting plate, connecting blocks arranged on the upper and lower outer wall end surfaces of the deformation hole and a fastening screw rod connected with the upper and lower connecting blocks, the middle of each connecting block is provided with a threaded hole in a penetrating manner, and the threaded hole is in threaded connection with the fastening screw rod; the middle part that fixed splint and activity splint correspond has seted up the embedded groove, the welding of activity splint correspondence embedded groove position department has the embedding piece.
The width of the embedding groove is equal to that of the embedding block, and a silica gel cushion is bonded at the bottom end of the embedding groove.
Wherein, the embedding piece is internally provided with a mounting hole, and the connecting screw rod penetrates through the embedding piece.
The cable clamp also comprises a C-shaped or notched annular-like clamping pad which is clamped among the fixed clamping plate, the movable clamping plate and the cable; the clamp pad comprises a C-shaped or notched annular elastic sealing hollow sleeve body and electrorheological fluid filled in the sleeve body; piezoelectric materials are arranged between the clamp pad and the fixed clamp plate and the movable clamp plate, and/or between the clamp pad and the cable, and/or inside the sleeve body, and the piezoelectric materials apply an electric field to the electrorheological fluid when being pressed.
Wherein, the electrorheological fluid takes nano zinc oxide or nano zinc oxide composite particles as dispersed phase particles; the fixed clamping plate and the movable clamping plate are grounded.
Wherein, a plurality of inner conducting strips arranged at intervals are adhered to the inner ring of the clamping pad; one surface of the inner conducting strip is cambered corresponding to the surface of the cable and is attached to the surface of the cable, and the other surface of the inner conducting strip extends out of an electrode and penetrates into the sleeve body to be in contact with the electrorheological fluid; an outer conducting strip is adhered to the outer ring of the clamping pad; one surface of the outer conducting strip is corresponding to the inner surfaces of the fixed clamping plate and the movable clamping plate to form an arc surface and is attached to the clamping plate, the other surface of the outer conducting strip is corresponding to the outer ring of the clamping pad to form an arc surface and is bonded with the surface of the outer ring of the clamping pad, and an electrode extends out to penetrate into the sleeve body to be contacted with the electrorheological fluid; the electrodes of the inner conducting strip and the outer conducting strip are not contacted with each other.
The piezoelectric material extends out of the positive electrode and the negative electrode and penetrates into the sleeve body to be in contact with the electrorheological fluid, and a magnetic field is applied to the electrorheological fluid; the adjacent piezoelectric materials are arranged at intervals.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. the tension-resistant cable clamp is provided with the connecting assembly, the mounting cylinder and the arc-shaped spring piece are arranged between the connecting screw and the movable clamping plate, when the tension-resistant cable clamp is pulled by external force, the movable clamping plate moves relative to the connecting plate, and at the moment, the arc-shaped spring piece deforms to buffer, so that the tension-resistant cable clamp is prevented from being damaged by the excessive external force, and the normal use of the tension-resistant cable clamp is ensured.
2. The clamping device is provided with the fastening assembly, the fastening screw rod is rotated to enable the two connecting blocks to be close to each other, the width of the middle part of the deformation hole is reduced, the inner walls of the two sides of the embedded groove extrude the embedded blocks towards the inside, and the fixed clamping plate and the movable clamping plate are connected more stably and are prevented from loosening.
3. The cable is provided with the clamping pad, the clamping pad adopts an electrorheological technology, the sleeve body is in a liquid state under the condition of no external electric field or small external electric field, and the clamping pad is in a flexible state or an elastic state, so that the swinging force of the cable can be better buffered, and the swinging of the cable is converted into the deformation of the clamping pad, thereby avoiding the larger friction between the cable and a rigid clamping plate when the cable swings, reducing the abrasion or torsion of the surface skin of the cable or the overlarge local stress pressure of the cable, and prolonging the service life of the cable; when the cable swings greatly under the action of external force, the piezoelectric material deforms to generate high voltage, the voltage is applied to the electrorheological fluid to make the electrorheological fluid become viscous or even solid, the larger the swing is, the larger the stress of the piezoelectric material is, the stronger the electric field applied to the electrorheological fluid is, the more viscous the electrorheological fluid is due to the change, so that the swing of the cable is hindered, the swing kinetic energy of the cable is consumed, and the swing of the cable can be remarkably relieved; when a short-circuit fault, a lightning surge or an operating overvoltage occurs in the cable line, a high induced voltage is developed on the shield. Personal safety will be compromised and even the cable outer sheath may be punctured. In order to avoid the phenomenon, a mode that one end is grounded and the other end is grounded through a sheath protector is generally adopted, and the most advanced cable sheath protector at present is the cable sheath protector adopting a ZnO piezoresistor; the electrorheological fluid takes nano zinc oxide or nano zinc oxide composite particles as dispersed phase particles, and the fixed splint and the movable splint are grounded; under the condition, the voltage is extremely high, the electrorheological fluid is converted into a solid state, and the clamping pad is substantially changed into the ZnO piezoresistor cable protector; it is thus possible to protect the cable at the same time as a cable protector in the special case described above.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the coupling assembly of the present invention;
FIG. 3 is a schematic view of the structure of area A of FIG. 2 according to the present invention;
FIG. 4 is a schematic structural view of the fastener assembly of the present invention;
FIG. 5 is a schematic view of a clamp pad of the present invention;
figure 6 is a schematic view of the clamp pad of the present invention clamped between a clamp plate and a cable.
Reference numbers in the figures: 1. a connecting plate; 2. fixing the clamping plate; 3. a movable splint;
4. a connecting assembly; 401. connecting a screw rod; 402. mounting holes; 403. mounting the cylinder; 404. an arc-shaped spring piece; 405. a ball groove; 406. a ball bearing; 407. a cover plate; 408. a nut; 409. a chute; 410. an arc-shaped antiskid plate;
5. a fastening assembly; 501. a deformation hole; 502. connecting blocks; 503. a threaded hole; 504. fastening a screw rod; 505. a groove is embedded; 506. embedding a block;
6. a U-shaped frame; 10. a clamping pad; 11. a cable; 12. a sleeve body; 13. electrorheological fluid; 14. a piezoelectric material; 15. an inner conductive sheet; 16. an outer conductive sheet.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1-4, the invention provides a technical scheme, which is an anti-deformation bunched insulated strain clamp, comprising a connecting plate 1, a fixed clamping plate 2 fixedly connected with the top surface and the bottom surface of the connecting plate 1, and a movable clamping plate 3 movably mounted with the upper and lower fixed clamping plates 2, wherein the movable clamping plate 3 is movably connected with the fixed clamping plate 2 through a connecting assembly 4; the connecting assembly 4 comprises a connecting screw 401 fixed on the connecting plate 1 and penetrating through the fixed clamping plate 2 and the movable clamping plate 3, a cover plate 407 sleeved on the outer diameter of the connecting screw 401 and movably connected with the movable clamping plate 3, and a nut 408 used for screwing and fixing the outer end of the cover plate 407; the movable clamping plate 3 is provided with a mounting hole 402 corresponding to the connecting screw rod 401, a mounting cylinder 403 is fixedly embedded in the mounting hole 402, and arc-shaped spring pieces 404 are uniformly welded on the inner wall of the mounting cylinder 403.
Further, a ball groove 405 is formed in the connecting surface of the movable clamp plate 3 and the cover plate 407, balls 406 are uniformly and movably embedded in the ball groove 405, and the movable clamp plate 3 is slidably connected with the cover plate 407 through the balls 406.
Furthermore, a corresponding hole is formed in the position, corresponding to the connecting screw rod 401, of the fixed clamping plate 2, and the diameter of the connecting screw rod 401 is equal to the diameter of the corresponding hole.
Further, the two ends of the installation cylinder 403 are flush with the top surface and the bottom surface of the movable clamping plate 3 respectively, and the end part of the installation cylinder 403 far away from the connecting plate 1 contacts with the cover plate 407, so that the installation cylinder 403 can be fixed conveniently.
Further, the sliding grooves 409 are formed in two ends of the top surface of the fixing clamping plate 2, and the arc-shaped anti-slip plates 410 are slidably mounted inside the sliding grooves 409.
Furthermore, a sealing rubber gasket is bonded at the position of the cover plate 407 close to the movable clamping plate 3 to prevent water from permeating into a gap between the cover plate 407 and the movable clamping plate 3.
Further, a U-shaped frame 6 is installed on the outer side of the connecting plate 1, a fastening assembly 5 is installed at the end portion of the side face of the connecting plate 1, the fastening assembly 5 comprises a deformation hole 501 arranged in the middle of the connecting plate 1, connecting blocks 502 arranged on the end faces of the upper and lower outer walls of the deformation hole 501, and fastening screws 504 connected with the upper and lower connecting blocks 502, a threaded hole 503 is formed in the middle of the connecting block 502 in a penetrating manner, and the threaded hole 503 is in threaded connection with the fastening screws 504; an embedded groove 505 is formed in the middle of the fixed clamping plate 2 corresponding to the movable clamping plate 3, and an embedded block 506 is welded at the position, corresponding to the embedded groove 505, of the movable clamping plate 3.
Further, the width of the embedded groove 505 is equal to the width of the embedded block 506, and a silica gel cushion is bonded to the bottom end of the embedded groove 505, so that the embedded block 506 can be embedded into the embedded groove 505 conveniently.
Furthermore, the embedding block 506 is provided with a mounting hole 402 therein, and the connecting screw 401 penetrates through the embedding block 506.
Further, as shown in fig. 5 and 6, the wire clamp further comprises a C-shaped or notched ring-like clamp pad 10 clamped between the fixed clamp plate 2, the movable clamp plate 3 and the cable 11; the clamp pad 10 comprises a C-shaped or notched annular elastic sealing hollow sleeve body 12 and electrorheological fluid 13 filled in the sleeve body 12; piezoelectric materials 14 are arranged between the clamp pad 10 and the fixed clamp plate 2 and the movable clamp plate 3, and/or between the clamp pad 10 and the cable 11, and/or inside the sleeve body 12, and the piezoelectric materials 14 apply an electric field to the electrorheological fluid 13 when being pressed.
Further, the electrorheological fluid 13 takes nano zinc oxide or nano zinc oxide composite particles as dispersed phase particles; the fixed clamping plate 2 and the movable clamping plate 3 are grounded.
Further, a plurality of inner conducting strips 15 arranged at intervals are adhered to the inner ring of the clamping pad 10; one surface of the inner conducting strip 15 is cambered corresponding to the surface of the cable 11 and is attached to the surface of the cable 11, and the other surface extends out of an electrode to penetrate into the sleeve body 12 to be contacted with the electrorheological fluid 13; an outer conducting strip 16 is adhered to the outer ring of the clamping pad 10; one surface of the outer conducting strip 16 is cambered corresponding to the inner surfaces of the fixed splint 2 and the movable splint 3 and is attached to the splint, the other surface of the outer conducting strip is cambered corresponding to the outer ring of the clamping pad 10 and is bonded with the surface of the outer ring of the clamping pad 10, and an electrode extends out to penetrate into the sleeve body 12 to be contacted with the electrorheological fluid 13; the electrodes of the inner conductive sheet 15 and the outer conductive sheet 16 are not in contact with each other.
Further, the piezoelectric material 14 extends out of the positive electrode and the negative electrode to penetrate into the sheath body 12 to contact with the electrorheological fluid 13, and a magnetic field is applied to the electrorheological fluid 13; adjacent piezoelectric materials 14 are spaced apart.
The working principle and the using process of the invention are as follows: loosening the connecting screw 401, opening the clamping pad 10 to enable the clamping pad to be sleeved outside the cable 11, placing the cable between the fixed clamping plate 2 and the movable clamping plate 3 together with the clamping pad 10, rotating a nut 408 at the end part of the connecting screw 401, enabling the fixed clamping plate 2 and the movable clamping plate 3 to be close to each other to clamp the clamping pad 10 and the cable 11, and fixing the U-shaped frame 6 to finish installation;
the fastening screw 504 is rotated to enable the two connecting blocks 502 to be close to each other, the width of the middle part of the deformation hole 501 is reduced, the bottom end of the fixed clamping plate 2 is bent, the inner walls of the two sides of the embedded groove 505 extrude the embedded blocks 506 inwards, and the fixed clamping plate 2 and the movable clamping plate 3 are connected more stably and are prevented from loosening;
an installation cylinder 403 and an arc-shaped spring leaf 404 are arranged between the connecting screw rod 401 and the movable clamping plate 3, when the cable is pulled by external force, the arc-shaped anti-slip plate 410 slides along the sliding groove 409, the movable clamping plate 3 moves relative to the connecting plate 1, the connecting screw rod 401 does not move relative to the connecting plate 1, at the moment, the arc-shaped spring leaf 404 is extruded and deformed by the connecting screw rod 401 to buffer, when the external force is removed, the arc-shaped spring leaf 404 is restored to the original state, the movable clamping plate 3 returns to the original position, the strain clamp is prevented from being damaged by the excessive external force, and the strain clamp is prevented from being deformed; the cover plate 407 is supported by the balls 406 so that the movable clamp plate 3 moves smoothly relative to the cover plate 407.
The clamp pad adopts an electrorheological technology, under the condition of no external electric field or small external electric field, the interior of the sleeve body 12 is in a liquid state, the clamp pad 10 is in a flexible state or an elastic state, the swinging force of the cable 11 can be well buffered, and the swinging of the cable 11 is converted into the deformation of the clamp pad 10, so that the larger friction between the cable 11 and a rigid clamp plate when the cable 11 swings is avoided, the skin abrasion or distortion or the local stress intensity of the cable 11 is reduced, and the service life of the cable 11 is prolonged; when the cable 11 swings greatly under the action of external force, the piezoelectric material 14 is deformed to generate high voltage, the voltage is applied to the electrorheological fluid 13 to make the electrorheological fluid become viscous or even solid, the larger the swing is, the larger the stress of the piezoelectric material 14 is, the stronger the electric field applied to the electrorheological fluid 13 is, and the more viscous the electrorheological fluid 13 is, the more viscous the electrorheological fluid 13 is due to the change, so that the swing of the cable 11 is hindered, the swing kinetic energy of the cable 11 is absorbed and consumed, and the swing of the cable 11 can be remarkably relieved; when a short-circuit fault, a lightning surge or an operating overvoltage occurs in the cable 11 line, a high induced voltage is developed on the shield. Personal safety will be compromised and even the cable outer sheath may be punctured. In order to avoid the phenomenon, a mode that one end is grounded and the other end is grounded through a sheath protector is generally adopted, and the most advanced cable sheath protector at present is the cable sheath protector adopting a ZnO piezoresistor; the electrorheological fluid 13 of the invention takes nano zinc oxide or nano zinc oxide composite particles as dispersed phase particles, and leads the fixed splint 2 and the movable splint 3 to be grounded; in this case, the voltage is extremely large, the electrorheological fluid 13 is converted into a solid state, the clamping pad 10 becomes a ZnO voltage dependent resistor cable protector in nature, the conductivity of the ZnO voltage dependent resistor cable protector rises sharply under the extremely large voltage, and the ZnO voltage dependent resistor cable protector can be led into the ground through the ZnO voltage dependent resistor cable protector, the inner conducting strip 15, the outer conducting strip 16, the fixed clamping plate 2 and the movable clamping plate 3, so that the pressure can be released quickly, and the cable can be protected; it is thus possible to protect the cable at the same time as a cable protector in the special case described above.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides an insulating strain clamp tied in a bundle that prevents deformation which characterized in that: the connecting device comprises a connecting plate (1), fixed clamping plates (2) fixedly connected with the top surface and the bottom surface of the connecting plate (1), and movable clamping plates (3) movably mounted at the upper and lower fixed clamping plates (2), wherein the movable clamping plates (3) are movably connected with the fixed clamping plates (2) through connecting components (4); the connecting assembly (4) comprises a connecting screw rod (401) which is fixed on the connecting plate (1) and penetrates through the fixed clamping plate (2) and the movable clamping plate (3), a cover plate (407) which is sleeved on the outer diameter of the connecting screw rod (401) and is movably connected with the movable clamping plate (3), and a nut (408) which is used for screwing and fixing the outer end of the cover plate (407); a mounting hole (402) is formed in the position, corresponding to the connecting screw rod (401), of the movable clamping plate (3), a mounting cylinder (403) is fixedly embedded in the mounting hole (402), and arc-shaped spring pieces (404) are uniformly welded on the inner wall of the mounting cylinder (403); the wire clamp also comprises a C-shaped or notched quasi-annular clamping pad (10) which is clamped among the fixed clamping plate (2), the movable clamping plate (3) and the cable (11); the clamp pad (10) comprises a C-shaped or notched annular elastic sealing hollow sleeve body (12) and electrorheological fluid (13) filled in the sleeve body (12); piezoelectric materials (14) are arranged between the clamp pad (10) and the fixed clamp plate (2) and the movable clamp plate (3), and/or between the clamp pad (10) and the cable (11), and/or inside the sleeve body (12), and the piezoelectric materials (14) apply an electric field to the electrorheological fluid (13) when being pressed.
2. The insulated strain clamp of claim 1, wherein the strain clamp comprises: a ball groove (405) is formed in the connecting surface of the movable clamp plate (3) and the cover plate (407), balls (406) are uniformly and movably embedded in the ball groove (405), and the movable clamp plate (3) is in sliding connection with the cover plate (407) through the balls (406); a sliding groove (409) is arranged at the connecting side of the fixed splint (2) and the movable splint (3); an arc-shaped antiskid plate (410) is slidably mounted inside the sliding groove (409).
3. The insulated strain clamp of claim 1, wherein the strain clamp comprises: corresponding holes are formed in the positions, corresponding to the connecting screw rods (401), of the fixed clamping plates (2), and the diameters of the connecting screw rods (401) are equal to the diameters of the corresponding holes; the both ends of installation section of thick bamboo (403) are respectively with activity splint (3) top surface and bottom surface parallel and level, the tip contact apron (407) of connecting plate (1) are kept away from in installation section of thick bamboo (403).
4. The insulated strain clamp of claim 1, wherein the strain clamp comprises: and a sealing rubber gasket is bonded at the position of the cover plate (407) close to the movable clamping plate (3).
5. The insulated strain clamp of claim 1, wherein the strain clamp comprises: the connecting plate is characterized in that a U-shaped frame (6) is installed on the outer side of the connecting plate (1), a fastening assembly (5) is installed at the end part of the side face of the connecting plate (1), the fastening assembly (5) comprises a deformation hole (501) formed in the middle of the connecting plate (1), connecting blocks (502) arranged on the end faces of the upper outer wall and the lower outer wall of the deformation hole (501), and fastening screws (504) connected with the upper connecting block and the lower connecting block (502), a threaded hole (503) is formed in the middle of the connecting block (502) in a penetrating mode, and the threaded hole (503) is in threaded connection with the fastening screws (504); the middle part that solid fixed splint (2) and activity splint (3) correspond has seted up embedded groove (505), the welding of activity splint (3) corresponding embedded groove (505) position department has embedded piece (506).
6. The insulated strain clamp of claim 5, wherein the strain clamp comprises: the width of the embedded groove (505) is equal to that of the embedded block (506), and a silica gel cushion is bonded at the bottom end of the embedded groove (505); the embedded block (506) is internally provided with a mounting hole (402), and the connecting screw rod (401) penetrates through the embedded block (506).
7. The insulated strain clamp of claim 1, wherein the strain clamp comprises: the electrorheological fluid (13) takes nano zinc oxide or nano zinc oxide composite particles as dispersed phase particles; the fixed clamping plate (2) and the movable clamping plate (3) are grounded.
8. The insulated strain clamp of claim 7, wherein the strain clamp comprises: a plurality of inner conducting strips (15) arranged at intervals are adhered to the inner ring of the clamping pad (10); one surface of the inner conducting strip (15) is cambered corresponding to the surface of the cable (11) and is attached to the surface of the cable (11), and the other surface of the inner conducting strip extends out of an electrode to penetrate into the sleeve body (12) to be contacted with the electrorheological fluid (13); an outer conducting strip (16) is adhered to the outer ring of the clamping pad (10); one surface of the outer conducting strip (16) is cambered corresponding to the inner surfaces of the fixed clamping plate (2) and the movable clamping plate (3) and is attached to the clamping plate, the other surface of the outer conducting strip is cambered corresponding to the outer ring of the clamping pad (10) and is bonded with the surface of the outer ring of the clamping pad (10), and an electrode extends out to penetrate into the sleeve body (12) to be contacted with the electrorheological fluid (13); the electrodes of the inner conductive sheet (15) and the outer conductive sheet (16) are not contacted with each other.
9. The insulated strain clamp of claim 8, wherein the strain clamp comprises: the piezoelectric material (14) extends out of the positive electrode and the negative electrode to penetrate into the sleeve body (12) to be in contact with the electrorheological fluid (13), and a magnetic field is applied to the electrorheological fluid (13); the adjacent piezoelectric materials (14) are arranged at intervals.
CN202011622943.XA 2020-12-31 2020-12-31 Prevent insulating strain clamp tied in a bundle of deformation Active CN112636286B (en)

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CN115189314B (en) * 2022-08-26 2024-03-15 浙江彼岸电气有限公司 Wire clamp

Citations (5)

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CN201160209Y (en) * 2007-11-28 2008-12-03 杭州高盛电力设备有限公司 Four-core bunched cable strain clamp
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