CN113258317B - Non-overheat cable head clamp special for electric power system - Google Patents
Non-overheat cable head clamp special for electric power system Download PDFInfo
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- CN113258317B CN113258317B CN202110400592.6A CN202110400592A CN113258317B CN 113258317 B CN113258317 B CN 113258317B CN 202110400592 A CN202110400592 A CN 202110400592A CN 113258317 B CN113258317 B CN 113258317B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
- H01R11/15—Hook in the form of a screw clamp
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Abstract
The invention provides a special non-overheating cable head clamp for an electric power system, which belongs to the technical field of cable head clamps and aims to solve the problem that the screw on the existing cable head clamp is subjected to the stress of wind pendulum or the loosening phenomenon can occur under the self vibration action of indoor equipment, so that the reliability of the cable head clamp is reduced during operation, and comprises a fixed bottom plate; the fixed bottom plate is of a rectangular plate-shaped structure, and a connecting plate is arranged on the upper end face of the fixed bottom plate; the middle part of the upper end face of the connecting plate is fixedly provided with the wire clamping piece, the upper part of the wire clamping piece is connected with two connecting nut pieces through threads, after the lower end of the compression screw piece passes through the lower part of the connecting nut piece, the three limiting pieces are rapidly unfolded under the action of the springs, so that the three limiting pieces are clamped in the three-wing clamping groove, at the moment, the cable joint cannot loosen due to the fact that the wind power swings or vibrates, the cable joint cannot loosen and overheat, and the reliability of the cable head clamp in operation is improved.
Description
Technical Field
The invention belongs to the technical field of cable head clamps, and particularly relates to a non-overheating cable head clamp special for an electric power system.
Background
The power system is an electric energy production and consumption system which is composed of links such as power generation, transformation, transmission, distribution, electricity consumption and the like. The system has the functions that primary energy in nature is converted into electric energy through a power generation power device (mainly comprising a boiler, a steam turbine, a generator, an auxiliary production system of a power plant and the like), and the electric energy is supplied to each load center through a power transmission system, a power transformation system and a power distribution system.
For example, application number: CN201811261789.0 the present invention provides a cable joint protection clip and a cable joint protection clip assembly, the cable joint protection clip includes a first clip body and a second clip body, the first clip body is matched with the second clip body, the first clip body is connected with the second clip body in an opening and closing manner; corresponding wire clamping structures are arranged on the first clamp body and the second clamp body, and the wire clamping structures are used for clamping the cable connector; the first clamp body and the second clamp body are made of insulating materials. The cable joint protection clamp disclosed by the invention has high use safety, can be rapidly used for insulating and clamping the disassembled cable joint, has a good clamping effect, can better protect the disassembled cable joint, is convenient and fast to disassemble, effectively improves the working efficiency of maintenance operators, and greatly reduces the occurrence probability of events such as equipment tripping.
Based on the above-mentioned patent search and the device discovery in the combination with the prior art, when clamping the cable in the power system, the cable clamp will be generally used, and the following disadvantages exist in the actual use process of the cable clamp, for example: 1. the existing cable head wire clamp is continued to the traditional screw crimping and fixing technology, when the cable head wire clamp is used outdoors for a long time, the loosening phenomenon can occur under the stress of wind-driven pendulum or the vibration action of indoor equipment, the loosening phenomenon can occur although the auxiliary fastening action of a pad disc exists, the abnormal enumeration of the equipment caused by loosening and overheating of a joint is not counted completely, and the reliability of the cable head wire clamp in operation is further reduced; 2. the phenomenon of loosening and overheating of the joint often occurs, so that the occurrence of events such as power failure and the like is caused for power users, a plurality of negative effects are caused for companies, the inspection workload of personnel such as operation, maintenance and the like is increased, and potential safety hazards are brought to regulation and control personnel during rush repair and power failure; 3. when the existing cable head clamp is detached from an external supporting object, the cable head clamp is fixed to the supporting object through a large number of bolts, so that the cable head clamp needs to be unscrewed and removed through a tool in the detaching process, and the detaching efficiency of the cable head clamp when the cable head clamp is detached from the supporting object is reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a special non-overheating cable head clamp for a power system, so as to solve the defects of the prior cable head clamp in the actual use process, such as: 1. the existing cable head wire clamp is continued to the traditional screw crimping and fixing technology, when the cable head wire clamp is used outdoors for a long time, the loosening phenomenon can occur under the stress of wind-driven pendulum or the vibration action of indoor equipment, the loosening phenomenon can occur although the auxiliary fastening action of a pad disc exists, the abnormal enumeration of the equipment caused by loosening and overheating of a joint is not counted completely, and the reliability of the cable head wire clamp in operation is further reduced; 2. the phenomenon of loosening and overheating of the joint often occurs, so that the occurrence of events such as power failure and the like is caused for power users, a plurality of negative effects are caused for companies, the inspection workload of personnel such as operation, maintenance and the like is increased, and potential safety hazards are brought to regulation and control personnel during rush repair and power failure; 3. when the existing cable head clamp is detached from an external supporting object, the cable head clamp is fixed to the supporting object through a large number of bolts, so that the cable head clamp needs to be unscrewed and removed through a tool in the detaching process, and the detaching efficiency of the cable head clamp is reduced when the cable head clamp is detached from the supporting object.
The purpose and the efficacy of the special non-overheating cable head clamp for the power system are achieved by the following specific technical means:
the special non-overheating cable head clamp for the power system comprises a fixed bottom plate; the fixed bottom plate is of a rectangular plate-shaped structure, and a connecting plate is arranged on the upper end face of the fixed bottom plate; the middle part of the upper end surface of the connecting plate is fixedly provided with a wire clamping piece, the upper part of the wire clamping piece is connected with two connecting nut pieces through threads, and the inside of each connecting nut piece is connected with a compression screw piece through threads; the front end face and the rear end face of the upper portion of the wire clamping piece are respectively provided with two plug-in mechanisms, the left side and the right side of the wire clamping piece are respectively provided with a sealing piece, the sealing pieces are of funnel-shaped rubber structures, the outside of each sealing piece is respectively clamped with a clamping mechanism arranged on the upper end face of the connecting plate, and the left side and the right side of the upper end face of the connecting plate are respectively provided with an anti-loosening mechanism.
Further, the fixing bottom plate comprises a connecting groove, the left side and the right side of the upper end face of the fixing bottom plate are respectively provided with a connecting groove, the width of the fixing bottom plate is twenty-five times to thirty times of the length of the connecting grooves, and the front side face of the inside of each connecting groove is provided with a rectangular bayonet;
four T-shaped sliding grooves are uniformly formed in the upper end face of the fixed bottom plate, two mounting plates with mounting holes are arranged at the lower parts of the left side and the right side of the fixed bottom plate, and the shape and the size of the fixed bottom plate are matched with those of the connecting plate;
further, the wire clamping piece comprises connecting sleeves, the wire clamping piece is of a square columnar structure, a through hole is formed in the middle of the left end face of the wire clamping piece, two threaded through holes communicated with the through hole are formed in the upper end face of the wire clamping piece in a bilateral symmetry mode, two connecting nut pieces are connected to the upper portion of the wire clamping piece through the two threaded through holes, one connecting sleeve is arranged at the position, located at the through hole, of the left end face and the right end face of the wire clamping piece, annular limiting plates are arranged outside each connecting sleeve, six rectangular sliding grooves are formed in the opposite ends of the peripheral faces of the two connecting sleeves in an annular array mode, and sealing pieces are sleeved at the opposite ends of the two connecting sleeves;
further, the connecting plate comprises a sliding sleeve and an elastic buckle, four T-shaped sliding strips are uniformly arranged on the bottom end surface of the connecting plate, and two sliding sleeves are symmetrically arranged on the front side of the bottom end surface of the connecting plate; each sliding sleeve is of a rectangular tubular structure, a partition board is arranged on the middle side of the inside of each sliding sleeve, a sliding column is fixedly connected to the middle part of the partition board inside each sliding sleeve, an elastic buckle is slidably connected to the left end and the right end of each sliding column, and springs are sleeved at the two ends of the outside of each sliding column;
when the connecting plate and the fixed bottom plate are in an installation state, four T-shaped sliding strips on the connecting plate are respectively connected with four T-shaped sliding grooves on the fixed bottom plate in a sliding manner, and four elastic buckles are respectively clamped with rectangular bayonets on the front sides of the two connecting grooves;
further, the compression screw comprises a limiting piece and limiting columns, three rectangular notches are formed in the edge of the lower end face of the compression screw in an annular array, a limiting piece is connected in each rectangular notch in a rotating mode through a rotating shaft, a spring is arranged between each limiting piece and the inside of each rectangular notch, and a limiting column tangent to the outer side face of each limiting piece is arranged at the inner lower end of each rectangular notch; the three limiting parts are distributed in an umbrella rib shape at the lower end of the compression screw part, when the compression screw part is in a compression state, the three limiting parts are distributed in an outward expanding mode, and the upper ends of the three limiting parts are contacted with the annular stop block;
further, the connecting nut piece comprises a three-wing clamping groove and an annular stop block, the connecting nut piece consists of a hexagonal nut and a cylindrical structure, the outer circumferential surface of the cylindrical structure at the lower end of the connecting nut piece is provided with threads connected with a threaded through hole on the wire clamping piece, the middle part of the bottom end surface of the cylindrical structure at the lower end of the connecting nut piece is provided with the three-wing clamping groove, and the three-wing clamping groove is of an annular groove structure; the inside of the three-wing clamping groove is provided with annular check blocks in a rectangular array shape, the cross section of one side of each annular check block is in a right-angled triangle structure, the inner circumferential surface of the cylinder structure at the lower end of the connecting nut piece is also provided with threads connected with the compression screw piece, and the front side surface of the upper end of the connecting nut piece is provided with an inserting hole;
further, the sealing element comprises strip-shaped sliding blocks, six strip-shaped sliding blocks are arranged on the inner peripheral surface of the large opening end of the sealing element in an annular array shape, a cable is sleeved in the sealing element, the outer peripheral surface of the small opening end of the sealing element is clamped on the clamping mechanism, when the sealing element and the wire clamping element are in an installation state, the six strip-shaped sliding blocks are respectively connected with six rectangular sliding grooves on the connecting sleeve in a sliding manner, and the large opening end of the sealing element is bonded with the annular limiting plate through an adhesive;
further, the plug-in mechanism comprises a sliding barrel, a sliding block and a plug-in column, the sliding barrel is of a barrel-shaped structure, the sliding block is connected inside the sliding barrel in a sliding manner, the sliding block is of a cylindrical structure, the opening end of the sliding barrel is fixedly connected with the upper part of the online clamping piece through a rectangular plate, a T-shaped sliding opening is formed in the upper part of the peripheral surface of the sliding barrel, the plug-in column penetrating through the rectangular plate is arranged on one side surface of the sliding block, a pull column connected with the T-shaped sliding opening in a sliding manner is arranged at the upper end of the sliding block, and a spring is arranged on the other side of the sliding block inside the sliding barrel; when the plugging mechanism and the connecting nut piece are in an installation state, the head end of the plugging column is plugged with the jack on the connecting nut piece;
further, the anti-loosening mechanism comprises a rectangular sliding shell and a rectangular sliding block, the rectangular sliding shell is fixedly connected to the front side of the upper end face of the connecting plate, the rectangular sliding block is connected inside the rectangular sliding shell in a sliding mode, a strip-shaped sliding opening is formed in the front end face of the rectangular sliding shell, and a spring is mounted at the tail of the rectangular sliding block inside the rectangular sliding shell; the triangular limiting block is arranged at the head end of the rectangular sliding block, the pulling rod which is in sliding connection with the strip-shaped sliding port on the rectangular sliding shell is arranged on the front end face of the rectangular sliding block, and when the anti-loosening mechanism and the clamping mechanism are in an installation state, the triangular limiting block at the head end of the rectangular sliding block is in close contact with the outer peripheral face of the limiting spline.
Further, the clamping mechanism comprises a supporting plate, a clamping screw, a clamping plate and a limiting spline, wherein the supporting plate is of a -shaped structure, and the lower end of the inner side of the supporting plate is rotationally connected with the clamping screw; the clamping screw outer peripheral face is equipped with two reverse threads, and the clamping screw outside has two screw thread section of thick bamboo through two reverse threaded connection, and two screw thread section of thick bamboo upper ends all are equipped with a splint, and two splint opposite faces all are equipped with arc clamp splice to two arc clamp splice centre gripping are at sealing member osculum end outer peripheral face, and the clamping screw front end is equipped with spacing flower gear, and the hexagonal recess has been seted up to spacing flower gear front end face, and spacing flower gear is located locking mechanism adjacent one side.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the three limiting parts are arranged at the lower end of the compression screw part, after the lower end of the compression screw part passes through the lower part of the connecting nut part, the three limiting parts are rapidly unfolded under the action of the spring, and the upper ends of the three limiting parts are contacted with the annular stop block, so that the three limiting parts are clamped in the three-wing clamping groove, at the moment, the compression screw part cannot be loosened by means of swinging or vibration of wind power, the cable connector cannot be loosened and overheated, and the reliability of the cable head clamp in operation is further improved.
2. According to the invention, as the compression screw part cannot loosen, loosening and overheating phenomena cannot occur at the joint of two cables, power failure and other events cannot occur to power users, and meanwhile, a plurality of negative effects cannot be caused to companies, the inspection workload of personnel such as operation, maintenance and overhaul is reduced, and potential safety hazards caused to regulation and control personnel during rush repair and power failure are avoided.
3. According to the cable head clamp, through the arrangement of the fixed bottom plate and the connecting plate, the adjacent two elastic buckles are manually pinched in opposite directions, so that the elastic buckles lose a clamping relation with the rectangular bayonet at the front side of the connecting groove, then the cable clamp is pulled backwards, and the cable clamp drives the connecting plate to slide backwards, so that the cable clamp can be quickly detached from an external supporting object, and in the whole detachment process, a large number of bolts are not required to be unscrewed and removed through a tool, so that the detachment efficiency of the cable head clamp when being detached from the supporting object is improved.
Drawings
Fig. 1 is an isometric view of the present invention.
Fig. 2 is a schematic view of the structure of the present invention in a disassembled state.
Fig. 3 is a schematic view of the structure of the connecting plate of the present invention.
Fig. 4 is a schematic view of a partially cut-away structure of a wire clamping member of the present invention.
Fig. 5 is a schematic view of a partially cut-away structure of a coupling nut member of the present invention.
Fig. 6 is a schematic view of a partially enlarged structure at a in fig. 5 according to the present invention.
Fig. 7 is a schematic view of a partial cross-sectional structure of a compression screw member of the present invention.
Fig. 8 is a schematic view of the plug-in mechanism of the present invention.
Fig. 9 is a schematic view of the seal structure of the present invention.
Fig. 10 is a partially enlarged schematic view of the structure of fig. 1B according to the present invention.
In the figure, the correspondence between the component names and the drawing numbers is:
1. a fixed bottom plate; 101. a connection groove; 2. a connecting plate; 201. a sliding sleeve; 202. an elastic buckle; 3. a wire clip member; 301. connecting sleeves; 4. a coupling nut member; 401. a three-wing clamping groove; 402. an annular stop; 5. a compression screw member; 501. a limiting piece; 502. a limit column; 6. a plug-in mechanism; 601. a sliding barrel; 602. a sliding block; 603. a plug-in column; 7. a seal; 701. a bar-shaped sliding block; 8. a clamping mechanism; 801. a support plate; 802. clamping a screw; 803. a clamping plate; 804. limiting the spline gear; 9. an anti-loosening mechanism; 901. a rectangular slide case; 902. a rectangular slide block.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples:
as shown in fig. 1 to 10:
the invention provides a special non-overheating cable head clamp for an electric power system, which comprises: a fixed bottom plate 1;
the fixed bottom plate 1 is of a rectangular plate-shaped structure, and a connecting plate 2 is arranged on the upper end surface of the fixed bottom plate 1; the fixing bottom plate 1 comprises connecting grooves 101, the left side and the right side of the upper end face of the fixing bottom plate 1 are provided with one connecting groove 101, the width of the fixing bottom plate 1 is twenty-five times to thirty times of the length of the connecting groove 101, and the front side face inside each connecting groove 101 is provided with a rectangular bayonet;
four T-shaped sliding grooves are uniformly formed in the upper end face of the fixed bottom plate 1, two mounting plates with mounting holes are arranged at the lower parts of the left side and the right side of the fixed bottom plate 1, and the shape and the size of the fixed bottom plate 1 are matched with those of the connecting plate 2;
a wire clamping piece 3 is fixedly arranged in the middle of the upper end surface of the connecting plate 2; the wire clamp 3 comprises connecting sleeves 301, the wire clamp 3 is of a square columnar structure, a through hole is formed in the middle of the left end face of the wire clamp 3, two threaded through holes communicated with the through hole are formed in the upper end face of the wire clamp 3 in a bilateral symmetry mode, two connecting nut pieces 4 are connected to the upper portion of the wire clamp 3 through the two threaded through holes, one connecting sleeve 301 is arranged at the position, located at the through hole, of each of the left end face and the right end face of the wire clamp 3, annular limiting plates are arranged outside each connecting sleeve 301, six rectangular sliding grooves are formed in the opposite ends of the peripheral faces of the two connecting sleeves 301 in an annular array mode, and one sealing piece 7 is sleeved at the opposite ends of the two connecting sleeves 301; the upper part of the wire clamping piece 3 is connected with two connecting nut pieces 4 through threads; the connecting nut piece 4 comprises a three-wing clamping groove 401 and an annular stop block 402, the connecting nut piece 4 consists of a hexagonal nut and a cylindrical structure, the outer circumferential surface of the cylindrical structure at the lower end of the connecting nut piece 4 is provided with threads connected with a threaded through hole on the wire clamping piece 3, the middle part of the bottom end surface of the cylindrical structure at the lower end of the connecting nut piece 4 is provided with the three-wing clamping groove 401, and the three-wing clamping groove 401 is of an annular groove structure;
the inside of the three-wing clamping groove 401 is provided with annular check blocks 402 in a rectangular array shape, the cross section of one side of each annular check block 402 is in a right-angled triangle structure, the inner circumferential surface of the cylinder structure at the lower end of the connecting nut piece 4 is also provided with threads connected with the compression screw piece 5, the front side surface of the upper end of the connecting nut piece 4 is provided with an inserting hole, when the compression screw piece 5 needs to be loosened, the two inserting posts 603 in the inserting hole on the connecting nut piece 4 are pulled out firstly, and then the connecting nut piece 4 is unscrewed and taken down; a compression screw piece 5 is connected with the inside of each connecting nut piece 4 through threads;
two plugging mechanisms 6 are arranged on the front end face and the rear end face of the upper part of the wire clamping piece 3; the plug-in mechanism 6 comprises a sliding barrel 601, a sliding block 602 and a plug-in column 603, wherein the sliding barrel 601 is of a barrel-shaped structure, the sliding block 602 is connected inside the sliding barrel 601 in a sliding manner, the sliding block 602 is of a cylindrical structure, the opening end of the sliding barrel 601 is fixedly connected with the upper part of the online clamping piece 3 through a rectangular plate, a T-shaped sliding opening is formed in the upper part of the peripheral surface of the sliding barrel 601, a plug-in column 603 penetrating through the rectangular plate is arranged on one side of the sliding block 602, a pull column in sliding connection with the T-shaped sliding opening is arranged at the upper end of the sliding block 602, and a spring is arranged on the other side of the sliding block 602 inside the sliding barrel 601;
when the plugging mechanism 6 and the connecting nut piece 4 are in an installation state, the head end of the plugging column 603 is plugged with the jack on the connecting nut piece 4, so that the connecting nut piece 4 can be effectively limited; the left side and the right side of the wire clamping piece 3 are respectively provided with a sealing piece 7; the sealing element 7 comprises strip-shaped sliding blocks 701, six strip-shaped sliding blocks 701 are arranged on the inner peripheral surface of the large opening end of the sealing element 7 in an annular array shape, a cable is sleeved in the sealing element 7, the outer peripheral surface of the small opening end of the sealing element 7 is clamped on the clamping mechanism 8, when the sealing element 7 and the wire clamping element 3 are in an installation state, the six strip-shaped sliding blocks 701 are respectively connected with six rectangular sliding grooves on the connecting sleeve 301 in a sliding manner, and the large opening end of the sealing element 7 is bonded with an annular limiting plate through adhesive, so that better sealing performance is achieved when the large opening end of the sealing element 7 is connected with the connecting sleeve 301; the sealing elements 7 are of funnel-shaped rubber structures, and a clamping mechanism 8 arranged on the upper end face of the connecting plate 2 is clamped outside each sealing element 7; the clamping mechanism 8 comprises a supporting plate 801, a clamping screw 802, a clamping plate 803 and a limiting spline 804, wherein the supporting plate 801 is of a -shaped structure, and the lower end of the inner side of the supporting plate 801 is rotatably connected with the clamping screw 802;
the outer peripheral surface of the clamping screw 802 is provided with two reverse threads, the outside of the clamping screw 802 is connected with two thread barrels through the two reverse threads, the upper ends of the two thread barrels are provided with a clamping plate 803, the opposite surfaces of the two clamping plates 803 are provided with arc clamping blocks, the two arc clamping blocks are clamped on the outer peripheral surface of the small opening end of the sealing element 7, the front end of the clamping screw 802 is provided with a limit spline 804, the front end surface of the limit spline 804 is provided with a hexagonal groove, the limit spline 804 is positioned on the adjacent side of the anti-loosening mechanism 9, and the two clamping plates 803 are driven by the two thread barrels to clamp and fix the small opening end of the sealing element 7 under the action of the two reverse threads by rotating the clamping screw 802 clockwise; the left and right parts of the front side of the upper end surface of the connecting plate 2 are respectively provided with an anti-loosening mechanism 9; the anti-loosening mechanism 9 comprises a rectangular sliding shell 901 and a rectangular sliding block 902, wherein the rectangular sliding shell 901 is fixedly connected to the front side of the upper end face of the connecting plate 2, the rectangular sliding block 902 is connected inside the rectangular sliding shell 901 in a sliding manner, a strip-shaped sliding opening is formed in the front end face of the rectangular sliding shell 901, and a spring is mounted at the tail of the rectangular sliding block 902 inside the rectangular sliding shell 901;
the triangular limiting block is arranged at the head end of the rectangular sliding block 902, the pulling rod which is in sliding connection with the strip-shaped sliding port on the rectangular sliding shell 901 is arranged on the front end face of the rectangular sliding block 902, when the anti-loosening mechanism 9 and the clamping mechanism 8 are in an installation state, the triangular limiting block at the head end of the rectangular sliding block 902 is in close contact with the peripheral face of the limiting spline 804, so that the limiting spline 804 can only rotate clockwise, and the firmness of the clamping of the two clamping plates 803 is improved.
The connecting plate 2 comprises a sliding sleeve 201 and an elastic buckle 202, four T-shaped sliding strips are uniformly arranged on the bottom end surface of the connecting plate 2, and two sliding sleeves 201 are symmetrically arranged on the front side of the bottom end surface of the connecting plate 2;
each sliding sleeve 201 is of a rectangular tubular structure, a partition board is arranged on the middle side of the inside of each sliding sleeve 201, a sliding column is fixedly connected to the middle part of the partition board inside each sliding sleeve 201, an elastic buckle 202 is slidably connected to the left end and the right end of each sliding column, and springs are sleeved at the two ends of the outside of each sliding column;
when the connecting plate 2 and the fixed bottom plate 1 are in an installation state, four T-shaped sliding strips on the connecting plate 2 are respectively connected with four T-shaped sliding grooves on the fixed bottom plate 1 in a sliding manner, and four elastic buckles 202 are respectively clamped with rectangular bayonets on the front sides of the two connecting grooves 101, so that the connecting plate 2 can be quickly and effectively fixed on the fixed bottom plate 1.
The compression screw 5 comprises a limiting piece 501 and limiting columns 502, wherein three rectangular notches are formed in the edge of the lower end face of the compression screw 5 in an annular array shape, each rectangular notch is connected with one limiting piece 501 in a rotating mode through a rotating shaft, a spring is arranged between each limiting piece 501 and the inside of each rectangular notch, and the lower end in each rectangular notch is provided with one limiting column 502 tangent to the outer side face of the limiting piece 501;
three locating parts 501 are "rib" form distribution in the compression screw spare 5 lower extreme, and when compression screw spare 5 was in the state of compressing tightly, three locating parts 501 were outwards expansion type distribution, and three locating part 501 upper end all contacted with annular dog 402 to make three locating part 501 can not upwards move this moment, thereby make compression screw spare 5 can not upwards move, thereby effectively avoid compression screw spare 5 to take place not hard up phenomenon.
In another embodiment, a limiting round bar is arranged at the center of a side surface of the sliding block 602 far away from the plug-in post 603, the limiting round bar is positioned in a spring in the sliding barrel 601, and the limiting round bar is connected with the tail of the sliding barrel 601 in a sliding manner, so that the sliding block 602 is more stable in sliding, the spring in the sliding barrel 601 is always positioned at the center of the sliding barrel 601, and the running reliability of the spring is improved.
When in use, the utility model is characterized in that: firstly, a fixed bottom plate 1 is mounted on an external supporting object through a mounting plate, then a connecting plate 2 is slid into the upper end face of the fixed bottom plate 1 from back to front, at the moment, four elastic buckles 202 are respectively clamped with rectangular bayonets at the front sides of two connecting grooves 101, then two sealing pieces 7 are respectively sleeved at the head ends of two cables, then two cable joints are inserted into a wire clamping piece 3, then a compression screw piece 5 is screwed into a connecting nut piece 4, after the lower end of the compression screw piece 5 passes through the lower part of the connecting nut piece 4, a cable joint in the wire clamping piece 3 is compressed and fixed through the lower end of the compression screw piece 5, at the moment, three limiting pieces 501 are rapidly unfolded under the action of springs, and the upper ends of the three limiting pieces 501 are contacted with annular stop blocks 402, so that the three limiting pieces 501 are clamped in a three-wing clamping groove 401, at the moment, the compression screw piece 5 is not loosened by wind force or vibration, so that the cable joint cannot be loosened and overheat, and the reliability of the cable head clamp in operation is improved; then two sealing elements 7 are respectively sleeved outside the two connecting sleeves 301, six bar-shaped sliding blocks 701 slide into six rectangular sliding grooves, then the large opening ends of the sealing elements 7 are bonded with the annular limiting plates through adhesives, so that through holes on two sides of the wire clamping element 3 are effectively sealed, and then clamping operation is carried out through two clamping mechanisms 8;
the compression screw piece 5 cannot loosen, so that loosening and overheating phenomena cannot occur at the joint of two cables, power failure and other events cannot occur to power users, a plurality of negative effects cannot be caused to companies, inspection workload of operators such as operation, maintenance and overhaul is reduced, and potential safety hazards caused to regulatory personnel during rush repair and power failure are avoided;
when the wire clamp 3 needs to be detached from an external supporting object, the adjacent two elastic buckles 202 are manually pinched in opposite directions, so that the elastic buckles 202 and the rectangular bayonet at the front side of the connecting groove 101 lose clamping relation, then the wire clamp 3 is pulled backwards, the wire clamp 3 drives the connecting plate 2 to slide backwards, the connecting plate 2 and the wire clamp 3 are separated, the wire clamp 3 can be quickly detached from the external supporting object, and in the whole detaching process, a large number of bolts are unscrewed and removed without tools, so that the detaching efficiency of the cable head clamp when detached from the supporting object is improved.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (6)
1. Special non-overheated cable head clamp of electric power system, its characterized in that: comprises a fixed bottom plate (1);
the fixed bottom plate (1) is of a rectangular plate-shaped structure, and a connecting plate (2) is arranged on the upper end face of the fixed bottom plate (1);
a wire clamping piece (3) is fixedly arranged in the middle of the upper end surface of the connecting plate (2), two connecting nut pieces (4) are connected to the upper part of the wire clamping piece (3) through threads, and a compression screw piece (5) is connected to the inside of each connecting nut piece (4) through threads;
two plugging mechanisms (6) are respectively arranged on the front end face and the rear end face of the upper part of the wire clamping piece (3), a sealing piece (7) is respectively arranged on the left side and the right side of the wire clamping piece (3), the sealing piece (7) is of a funnel-shaped rubber structure, a clamping mechanism (8) arranged on the upper end face of the connecting plate (2) is respectively clamped outside each sealing piece (7), and an anti-loosening mechanism (9) is respectively arranged on the left side and the right side of the upper end face of the connecting plate (2);
the connecting nut piece (4) comprises a three-wing clamping groove (401) and an annular stop block (402), the connecting nut piece (4) consists of a hexagonal nut and a cylindrical structure, threads connected with threaded through holes on the wire clamping piece (3) are arranged on the outer peripheral surface of the cylindrical structure at the lower end of the connecting nut piece (4), the middle part of the bottom end surface of the cylindrical structure at the lower end of the connecting nut piece (4) is provided with the three-wing clamping groove (401), and the three-wing clamping groove (401) is of an annular groove structure; the inside of the three-wing clamping groove (401) is provided with annular check blocks (402) in a rectangular array shape, one side section of each annular check block (402) is of a right-angled triangle structure, the inner circumferential surface of the lower end cylinder structure of the connecting nut piece (4) is also provided with threads connected with the compression screw piece (5), and the front side surface of the upper end of the connecting nut piece (4) is provided with an inserting hole;
the compression screw piece (5) comprises a limiting piece (501) and limiting columns (502), three rectangular notches are formed in the edge of the lower end face of the compression screw piece (5) in an annular array shape, a limiting piece (501) is connected in each rectangular notch in a rotating mode through a rotating shaft, a spring is arranged between each limiting piece (501) and the inside of each rectangular notch, and one limiting column (502) tangent to the outer side face of each limiting piece (501) is arranged at the lower end in each rectangular notch; the three limiting pieces (501) are distributed in an umbrella rib shape at the lower end of the compression screw piece (5), when the compression screw piece (5) is in a compression state, the three limiting pieces (501) are distributed in an outward expanding mode, and the upper ends of the three limiting pieces (501) are contacted with the annular stop block (402);
the clamping mechanism (8) comprises a supporting plate (801), a clamping screw (802), a clamping plate (803) and a limiting spline (804), wherein the supporting plate (801) is of a -shaped structure, and the lower end of the inner side of the supporting plate (801) is rotationally connected with the clamping screw (802); two reverse threads are arranged on the outer peripheral surface of the clamping screw (802), two thread barrels are connected to the outer part of the clamping screw (802) through the two reverse threads, two clamping plates (803) are arranged at the upper ends of the two thread barrels, arc clamping blocks are arranged on opposite surfaces of the two clamping plates (803), the two arc clamping blocks are clamped on the outer peripheral surface of the small opening end of the sealing piece (7), a limit spline (804) is arranged at the front end of the clamping screw (802), a hexagonal groove is formed in the front end surface of the limit spline (804), and the limit spline (804) is positioned on one side adjacent to the anti-loosening mechanism (9);
the anti-loosening mechanism (9) comprises a rectangular sliding shell (901) and a rectangular sliding block (902), the rectangular sliding shell (901) is fixedly connected to the front side of the upper end face of the connecting plate (2), the rectangular sliding block (902) is connected inside the rectangular sliding shell (901) in a sliding mode, a strip-shaped sliding opening is formed in the front end face of the rectangular sliding shell (901), and a spring is mounted at the tail of the rectangular sliding block (902) inside the rectangular sliding shell (901); the head end of the rectangular sliding block (902) is provided with a triangular limiting block, the front end surface of the rectangular sliding block (902) is provided with a pulling rod which is in sliding connection with a strip-shaped sliding port on the rectangular sliding shell (901), and when the anti-loosening mechanism (9) and the clamping mechanism (8) are in an installation state, the triangular limiting block at the head end of the rectangular sliding block (902) is in close contact with the outer peripheral surface of the limiting spline (804).
2. The non-overheated cable head clamp for an electrical power system according to claim 1, wherein: the fixing base plate (1) comprises connecting grooves (101), the left side and the right side of the upper end face of the fixing base plate (1) are provided with one connecting groove (101), the width of the fixing base plate (1) is twenty-five times to thirty times of the length of the connecting grooves (101), and the front side face of the inside of each connecting groove (101) is provided with a rectangular bayonet;
four T-shaped sliding grooves are uniformly formed in the upper end face of the fixed bottom plate (1), two mounting plates with mounting holes are arranged at the lower parts of the left side and the right side of the fixed bottom plate (1), and the shape and the size of the fixed bottom plate (1) are matched with those of the connecting plate (2).
3. The non-overheated cable harness dedicated to an electrical power system according to claim 2, wherein: the connecting plate (2) comprises a sliding sleeve (201) and an elastic buckle (202), four T-shaped sliding strips are uniformly arranged on the bottom end surface of the connecting plate (2), and two sliding sleeves (201) are symmetrically arranged on the front side of the bottom end surface of the connecting plate (2);
each sliding sleeve (201) is of a rectangular tubular structure, a partition board is arranged on the middle side of the inside of each sliding sleeve (201), a sliding column is fixedly connected to the middle part of the partition board inside each sliding sleeve (201), the left end and the right end of each sliding column are slidably connected with an elastic buckle (202), and springs are sleeved at the two ends of the outside of each sliding column;
when the connecting plate (2) and the fixed bottom plate (1) are in an installation state, four T-shaped sliding strips on the connecting plate (2) are respectively connected with four T-shaped sliding grooves on the fixed bottom plate (1) in a sliding mode, and four elastic buckles (202) are respectively clamped with rectangular bayonets on the front sides of the two connecting grooves (101).
4. The non-overheated cable head clamp for an electrical power system according to claim 1, wherein: the wire clamp piece (3) comprises connecting sleeves (301), the wire clamp piece (3) is of a square columnar structure, through holes are formed in the middle of the left end face of the wire clamp piece (3), two threaded through holes communicated with the through holes are formed in the mode that the upper end face of the wire clamp piece (3) is in bilateral symmetry, two connecting nut pieces (4) are connected to the upper portion of the wire clamp piece (3) through the two threaded through holes, one connecting sleeve (301) is arranged at the position of each of the left end face and the right end face of the wire clamp piece (3), annular limiting plates are arranged outside each connecting sleeve (301), six rectangular sliding grooves are formed in the mode that the outer peripheral faces of the two connecting sleeves are in opposite directions, and one sealing piece (7) is sleeved at the opposite ends of the two connecting sleeves (301).
5. The non-overheated cable head clamp for an electrical power system according to claim 1, wherein: the plug-in mechanism (6) comprises a sliding barrel (601), a sliding block (602) and a plug-in column (603), wherein the sliding barrel (601) is of a barrel-shaped structure, the sliding block (602) is connected inside the sliding barrel (601) in a sliding manner, the sliding block (602) is of a cylindrical structure, the opening end of the sliding barrel (601) is fixedly connected with the upper part of the wire clamping piece (3) through a rectangular plate, a T-shaped sliding opening is formed in the upper part of the peripheral surface of the sliding barrel (601), the plug-in column (603) penetrating through the rectangular plate is arranged on one side of the sliding block (602), a pull column connected with the T-shaped sliding opening in a sliding manner is arranged at the upper end of the sliding block (602), and a spring is arranged on the other side of the sliding block (602) inside the sliding barrel (601);
when the plugging mechanism (6) and the connecting nut piece (4) are in an installation state, the head end of the plugging column (603) is plugged with the jack on the connecting nut piece (4).
6. The non-overheated cable harness dedicated to an electrical power system according to claim 4, wherein: the sealing piece (7) comprises strip-shaped sliding blocks (701), six strip-shaped sliding blocks (701) are arranged on the inner peripheral surface of the large opening end of the sealing piece (7) in an annular array mode, a cable is sleeved inside the sealing piece (7), the outer peripheral surface of the small opening end of the sealing piece (7) is clamped on the clamping mechanism (8), when the sealing piece (7) and the wire clamping piece (3) are in an installation state, the six strip-shaped sliding blocks (701) are respectively connected with six rectangular sliding grooves on the connecting sleeve (301) in a sliding mode, and the large opening end of the sealing piece (7) is bonded with the annular limiting plate through adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110400592.6A CN113258317B (en) | 2021-04-14 | 2021-04-14 | Non-overheat cable head clamp special for electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110400592.6A CN113258317B (en) | 2021-04-14 | 2021-04-14 | Non-overheat cable head clamp special for electric power system |
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| Publication Number | Publication Date |
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| CN113258317A CN113258317A (en) | 2021-08-13 |
| CN113258317B true CN113258317B (en) | 2023-07-28 |
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| CN202110400592.6A Active CN113258317B (en) | 2021-04-14 | 2021-04-14 | Non-overheat cable head clamp special for electric power system |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119779A (en) * | 2018-10-10 | 2019-01-01 | 国网江苏省电力有限公司泗洪县供电分公司 | A kind of multi-functional full adaptation earthing clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206758972U (en) * | 2017-06-07 | 2017-12-15 | 山东远通线缆有限公司 | A kind of clamping and fixing device of cable |
| CN209298356U (en) * | 2018-08-23 | 2019-08-23 | 广州番禺电缆集团有限公司 | Anti-loose connecting cable wire clamp |
| CN109167307A (en) * | 2018-10-26 | 2019-01-08 | 中国南方电网有限责任公司超高压输电公司广州局 | Cable connector guard clip and cable connector protect clip assembly |
| CN212485595U (en) * | 2020-07-31 | 2021-02-05 | 蜀恒源实业成都有限公司 | Special crimping type equipment fastener of power cable |
| CN112186375A (en) * | 2020-10-12 | 2021-01-05 | 国网河南省电力公司镇平县供电公司 | Binding post for power transmission with louvre |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119779A (en) * | 2018-10-10 | 2019-01-01 | 国网江苏省电力有限公司泗洪县供电分公司 | A kind of multi-functional full adaptation earthing clamp |
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