123results about How to "Reasonable distribution of center of gravity" patented technology

The invention discloses a corn harvester, and belongs to the technical field of agricultural machinery. The corn harvester comprises a power system and a chassis operating system, the chassis operating system has an infinitely variable speed, the front end of an upper frame of a chassis is hinged to a corncob picking table, a main transmission shaft of a stripping machine is positioned on the front side of a main transmission shaft of a corncob elevator, a corncob uniform distribution device is mounted between the corncob elevator and the stripping machine, and a corncob box support and a first power device for driving a corncob box to turn over are positioned in the same vertical plane. The corn harvester is flexible in steering, small in turning radius and convenient to operate, corncob conveying flow is in Z-shaped rotation between the corncob elevator and the stripping machine by the aid of the corncob uniform distribution device, a body is maximally shortened, the corn harvester can be shorter than 7200mm and is particularly suitable for harvesting low crops, high in working efficiency and particularly applicable to harvesting corns in the central plain and wheat rotation areas, and gravity center distribution of the whole harvester is reasonable.

The invention relates to a robot mechanical arm. The robot mechanical arm comprises a rotating platform base, a large arm, a small arm and a gripper mechanism. A first driving mechanism and a second driving mechanism are arranged in the large arm, the first driving mechanism is connected with a first conical gear arranged at one end in the large arm, the first conical gear is engaged with a secondconical gear, the second conical gear is fixedly connected with the rotating platform base through a first connecting mechanism, the small arm is connected with a fourth conical gear through a secondconnecting mechanism, the fourth conical gear is engaged with a third conical gear on the other end of the large arm, the third conical gear is connected with the second driving mechanism, a third driving mechanism is arranged in the small arm, the third driving mechanism is connected with a fourth driving mechanism in the small arm, and the fourth driving mechanism is driven to rotate around theaxis of the third driving mechanism. The gripper mechanism is connected with the fourth driving mechanism, and the fourth driving mechanism can drive a gripper to move. The robot mechanical arm is reasonable in gravity center distribution, compact in structure and low in cost.

The invention relates to a magnetic shoe encasement and arrangement device which solves the problems in the prior art that the encasement efficiency is low and the labor intensity of workers is high due to the fact that magnetic shoes are manually arranged and encased. The magnetic shoe encasement and arrangement device comprises a magnetic shoe automatic arrangement device; the magnetic shoe automatic arrangement device comprises an arrangement and charging mechanism; the magnetic shoes are arranged in a manner of pushing forwards one by one and vertically lapping and thus magnetic shoe columns are formed, and every two adjacent inverted-T-shaped surface and U-shaped surface of the same magnetic shoe column are fit with each other. Automation is realized in the entire process, the labor intensity of the workers is relieved, and the encasement efficiency is improved. In the automatic arrangement process of magnetic shoes, the magnetic shoes are placed horizontally with the two straightedges of the magnetic shoes being supported and the reverse-T-shaped surfaces facing upwards, in this way, the magnetic shoes are relatively stable, the gravity center is distributed reasonably, andfalling cannot happen in the arrangement process.

The invention discloses an improved electric power fitting for an overhead line. The improved electric power fitting for the overhead line comprises a base tube, a core tube, two sets of press claw components and two flat nuts, wherein crimping bosses are arranged on the inner circumference wall of the base tube; radial limiting slide holes are formed in the tube wall of the core tube; a stopping table is arranged on the inner circumference wall of the core tube; each set of press claw components comprises a plurality of press claws; the two flat nuts are rotationally arranged in a tube cavity of the core tube, and are separately located at two sides of the stopping table; each flat nut comprises a fastening part and a flat thread part which is matched with the press claws in the one corresponding set of press claw components; an arc-shaped groove is arranged on the inner wall of each crimping boss; an arc-shaped clamping groove is arranged on the outer wall of a pressure plate part of each press claw; the arc-shaped clamping groove of each press claw and the arc-shaped groove of each crimping boss are clamped to form a wire clamping hole; and each flat nut drives the corresponding flat thread part to rotate in a reciprocating manner, so that the press claws in the one corresponding set of press claw components are driven to be close to or far away from the center of the core tube. The improved electric power fitting for the overhead line has an excellent anti-looseness effect.

The invention discloses a continuous wire clip for an overhead insulation circuit. The continuous wire clip comprises a base body, a nut and three press claws, wherein the base body is provided with a sliding pipe, a baffle platform and three radial guide limitation holes, each press claw is arranged in corresponding one of the radial guide limitation holes, a planar nut sleeves the outer peripheral wall of the sliding pipe of the base body, each press claw is provided with a press plate part, a guide sliding block part and a driving thread part, a planar thread part adaptive to a driving thread part is arranged at one side end, far away from the baffle platform, of the planar nut, the planar nut drives the planar thread part to rotate in a reciprocating way so as to further drive each press claw to get close to or derivate from the center of the sliding pipe by the driving thread part, three arc clamping grooves are formed in the outer peripheral wall of a core rod, each arc clamping groove is arranged opposite to the inner wall of corresponding one of the press claws, each arc clamping groove and corresponding one arc groove are clamped to form a wire clamping hole, a support positioning convex plate is arranged on the outer peripheral wall of the core rod, and a positioning sliding groove is arranged in the inner peripheral wall of the sliding pipe of the base body and is adaptive to the support positioning convex plate. The continuous wire clip has an excellent loosening prevention effect.

The invention relates to a four-way five-wheel side electric loading and unloading truck. The forklift includes a frame, a cab, a driving system, a steering system, a braking system, a mast system, a hydraulic system, and an electrical system; it adopts a single motor, The single oil pump drives multiple mechanisms such as mast lifting, fork forward moving, side shifting and vehicle steering. The traveling system adopts a horizontal motor, which reduces the installation height of the driving wheel, reduces the length of the forklift, makes the steering more flexible, and increases the load. The area of ​​the table is reduced, and the number of parts is reduced at the same time, clean and low noise; it adopts an explosion-proof and anti-static function design, which is suitable for operation in dangerous places of warehouses. The beneficial effect of the present invention is that it mainly solves the problem of stacking and transporting large-volume super-long explosive materials in a narrow and long airtight environment, as well as transporting outdoors on long-distance, high-slope hard roads, and is easy to assemble and easy to operate and maintain.

The invention discloses an overhead electric power fitting. The overhead electric power fitting comprises a base body, a planar nut, two sets of press claw assemblies and a core rod, wherein the core rod is arranged in a pipe cavity of a sliding pipe of the base body, the base body is provided with the sliding pipe and radial guide limitation holes, the radial guide limitation holes are formed in the sliding pipe, the planar nut sleeves the outer peripheral wall of the sliding pipe of the base body and is arranged between the two sets of press claw assemblies, each press claw is arranged in corresponding one of the radial guide limitation holes, a planar thread part is arranged at each of two side ends of the planar nut, each planar thread part is adaptively engaged with driving thread parts of three press claws in adjacent one set of press claw assembly, the core rod is provided with three arc clamping grooves, each arc clamping groove and the inner wall of corresponding one press claw are clamped to form a wire clamping hole, and the planar nut synchronously drives the two sets of press claw assemblies to get close to or deviate from the center of the sliding pipe. The overhead electric power fitting has a relatively high loosening prevention effect.

The invention discloses a puncture wire clamp for power transmission and distribution, which comprises a base pipe, a core pipe, a set of pressing jaw assemblies and a flat nut; There is a radial limit sliding hole on the top, and an annular stopper is provided on the inner peripheral wall of the core tube; the pressure claw assembly includes a plurality of pressure claws, and each pressure claw includes a pressure plate part, a guide slider part and a driving thread part; the flat nut rotates It is arranged in the lumen of the core tube; the plane nut includes a plane threaded part which is engaged with the driving threaded part of each pressure claw; the base tube is provided with a mounting screw hole for a built-in temperature sensing device. The invention has excellent anti-loosening effect.

The invention discloses a wire clamping fitting for power lines, which comprises a core tube, two pressing bolts, two sets of crimping assemblies and two sets of pressing claw assemblies; the tube wall of the core tube is provided with a radial guide sliding hole ; Each crimping piece is provided with a pressure plate part and an anti-off connection part; the crimping part is detachably arranged on the core tube through the anti-off connection part; each set of pressure claw components includes a plurality of pressure claws; each pressure claw includes a top plate part, Guide the slider part and the driving surface; the top plate part of each pressure jaw is set directly against the pressure plate part of a corresponding crimping part; two pressure bolts are located on both sides of the core tube; each pressure bolt includes a body, an external thread area and a top Pressing boss, the shape of the top pressing boss is a truncated cone; the driving surface of each pressing claw is adapted to the outer peripheral wall of a corresponding top pressing boss; at least one crimping part is provided with a mounting screw hole for a built-in temperature sensing device ; When each pressing bolt rotates in a preset direction, each pressing jaw in a corresponding set of pressing jaw assembly is pushed to move. The invention is easy to install.

The invention discloses a clamping fitting for preventing the cable from loosening, which comprises a pressing bolt, a core tube, a crimping assembly and a pressing claw assembly; a radial guiding sliding hole is arranged on the tube wall of the core tube; There is an internal thread area in the middle; the crimping assembly includes a plurality of crimping parts; each crimping part is provided with a pressing plate part and an anti-off connection part; the crimping part is detachably arranged on the core tube through the anti-off connection part; the pressure claw The assembly includes a plurality of pressing jaws; each pressing jaw includes a top plate part, a guide slider part and a driving surface; each guide slider part is inserted into a corresponding radial guide sliding hole; the pressing bolt includes a body, an external thread area and a pressing protrusion The shape of the top pressure boss is conical truncated; the external thread area of ​​the top pressure bolt is adapted to the internal thread area of ​​the core tube; the driving surface of each pressure claw is adapted to the outer peripheral wall of a corresponding top pressure boss; at least one The crimping piece has a mounting screw hole with a built-in temperature sensing device. The installation fastness of the invention is stable and reliable.

The invention discloses a corn harvester, and belongs to the technical field of agricultural machinery. The corn harvester comprises a power system and a chassis operating system, the chassis operating system has an infinitely variable speed, the front end of an upper frame of a chassis is hinged to a corncob picking table, a main transmission shaft of a stripping machine is positioned on the front side of a main transmission shaft of a corncob elevator, a corncob uniform distribution device is mounted between the corncob elevator and the stripping machine, and a corncob box support and a first power device for driving a corncob box to turn over are positioned in the same vertical plane. The corn harvester is flexible in steering, small in turning radius and convenient to operate, corncob conveying flow is in Z-shaped rotation between the corncob elevator and the stripping machine by the aid of the corncob uniform distribution device, a body is maximally shortened, the corn harvester can be shorter than 7200mm and is particularly suitable for harvesting low crops, high in working efficiency and particularly applicable to harvesting corns in the central plain and wheat rotation areas, and gravity center distribution of the whole harvester is reasonable.

The invention discloses an improved connecting power fitting. The improved connecting power fitting comprises a base tube, a core tube, two sets of press claw components and two flat nuts, wherein crimping bosses are arranged on the inner circumference wall of the base tube; radial limiting slide holes are arranged in the tube wall of the core tube; a stopping table is arranged on the inner circumference wall of the core tube; each set of press claw components comprise a plurality of press claws; the two flat nuts are rotationally arranged in a tube cavity of the core tube, and are separately located at two sides of the stopping table; each flat nut comprises a fastening part and a plane thread part which is matched with the press claws in one corresponding set of press claw components; an installation screw hole which runs through a wall body of the base tube along the radial direction is arranged in the base tube; and the installation screw hole of a built-in temperature sensing device is arranged in the base tube. The improved connecting power fitting has an excellent anti-looseness effect.

The invention discloses an electric transformer. The electric transformer comprises a base body, a plane nut, a pressing claw assembly and a transformer body. The pressing claw assembly comprises three pressing claws. The base body is provided with a sliding pipe, a check platform and three radial guide limiting holes. The plane nut and the transformer body are arranged on the peripheral wall of the sliding pipe of the base body in a sleeved mode. The plane nut is located between the radial guide limiting holes and the check platform. The pressing claws are located in the corresponding radial guide limiting holes. Each pressing claw is provided with a pressing plate part, a guide sliding block part and a driving thread part. A fastening part is arranged on the peripheral wall of the plane nut, and the plane nut is provided with a plane thread part matched with the driving thread parts of the pressing claws in a meshed mode. When rotating back and forth, the plane nut drives the pressing claws to get close to or keep away from one another towards the center of the sliding pipe. The three radial guide limiting holes are evenly distributed in the peripheral wall of the sliding pipe of the base body, and penetrate through the wall of the sliding pipe in the radial direction of the sliding pipe of the base body. The driving thread parts are arranged at the side ends, adjacent to the plane nut, of the guide sliding block parts. The electric transformer is convenient to install.

The invention discloses a power clamp for overhead lines. The power clamp comprises a base tube, a core tube, a set of compression claw component and a planar nut, wherein compression joint bosses are arranged on the inner circumferential wall of the base tube; radial limit sliding holes are formed in the tube wall of the core tube; the compression claw assembly comprises a plurality of compression claws; each compression claw comprises a compression plate part and a drive threaded part; each drive threaded part extends into the tube cavity of the core tube through the corresponding radial limit sliding hole; each compression plate part is placed between the inner wall of the base tube and the outer wall of the core tube; each compression plate part and the corresponding compression joint boss get close to form a line clamping hole; the planar nut is arranged in the tube cavity of the core tube in a rotating way and comprises a planar threaded part in engaged fit with the drive threaded part of each compression claw; the planar nut drives the planar threaded part to rotate in a reciprocating way, so as to further drive all compression plate parts to get close mutually towards the center of the base tube or depart from each other through the drive threaded parts. The power clamp for overhead lines has an excellent anti-loosening effect.

The invention discloses a high-voltage power connecting fitting with relatively high wire clamping strength. The high-voltage power connecting fitting comprises a base tube, a core tube, a crimping element and a press claw component, wherein a plurality of wire clamping bosses are arranged on the inner circumference wall of the base tube; the core tube is located in a tube cavity of the base tube; radial limiting slide holes are formed in the tube wall of the core tube; an inner thread region is arranged on the inner wall of the core tube; the press claw component comprises a plurality of press claws; each press claw comprises a press plate part, a guide slide block part and a drive surface; the crimping element comprises a body, an outer thread region and a crimping boss; the outer thread region is arranged on the outer circumference wall of the body; the crimping boss is arranged at the inner side end of the columnar body; the outer thread region of the crimping element is matched with the inner thread region of the core tube; the drive surface of each press claw is matched with the outer circumference wall of the crimping boss; the crimping element drives the crimping boss to rotate and advance towards the tube cavity of the core tube when rotating along the preset direction; the crimping boss pushes the press claws by pushing the drive surfaces, so that the press plate parts move outwards along the radial direction of the core tube to clamp power cables in wire clamping holes. The high-voltage power connecting fitting has relatively good mechanical and electric properties.

The invention discloses a power clamp for overhead lines. The power clamp comprises a base tube, a core tube, a set of compression claw component and a planar nut, wherein compression joint bosses are arranged on the inner circumferential wall of the base tube; radial limit sliding holes are formed in the tube wall of the core tube; an annular stopper is arranged on the inner circumferential wall of the core tube; the compression claw assembly comprises a plurality of compression claws; each compression claw comprises a compression plate part, a guide sliding block part and a drive threaded part; the planar nut is arranged in the tube cavity of the core tube in a rotating way and comprises a planar threaded part in engaged fit with the drive threaded part of each compression claw; the outer circumferential wall of the planar nut is adjacent to the inner wall of the core tube in a sliding way; one side end, adjacent to the stopper, of the planar nut is adjacent to the stopper in a sliding way; the planar threaded part is annular and is provided with Archimedes screw grooves; the planar nut drives the planar threaded part to rotate in a reciprocating way, so as to further drive all compression claws to get close mutually towards the center of the base tube or depart from each other. The power clamp for overhead lines has an excellent anti-loosening effect.

The invention discloses a power wire clamping fitting for preventing a cable from loosening. The power wire clamping fitting comprises a jacking and pressing bolt, a core tube, a crimping assembly and a press claw assembly, wherein radial guide slide holes are formed in the tube wall of the core tube; an inner thread region is arranged in a tube cavity of the core tube; the crimping assembly comprises a plurality of crimping parts; each crimping part is provided with a press plate part and an anti-drop connection part; the crimping parts are detachably arranged on the core tube through the anti-drop connection parts; the press claw assembly comprises a plurality of press claws; each press claw comprises a top plate part, a guide slide block part and a drive surface; each guide slide block part is inserted into one corresponding radial guide slide hole; the jacking and pressing bolt comprises a body, an outer thread region and a jacking and pressing boss; the shape of the jacking and pressing boss is a truncated cone shape; the outer thread region of the jacking and pressing bolt is matched with the inner thread region of the core tube; the drive surface of each press claw is matched with the outer circumference wall of one corresponding jacking and pressing boss; and the jacking and pressing bolt pushes the top plate parts to move outwards along the radial direction of the core tube when rotating along the preset direction. The power wire clamping fitting is firm, stable and reliable to install.

The invention discloses a puncture wire clamp for power transmission and distribution, which comprises a base pipe, a core pipe, a set of pressing jaw assemblies and a flat nut; There is a radial limit sliding hole on the top, and an annular stopper is provided on the inner peripheral wall of the core tube; the pressure claw assembly includes a plurality of pressure claws, and each pressure claw includes a pressure plate part, a guide slider part and a driving thread part; the flat nut rotates It is arranged in the lumen of the core tube; the plane nut includes a plane threaded part which is engaged with the driving threaded part of each pressure claw; the base tube is provided with a mounting screw hole for a built-in temperature sensing device. The invention has excellent anti-loosening effect.

The invention discloses a climbing assault vehicle for police. The climbing assault vehicle comprises a vehicle chassis, an uploading truss and hydraulic legs; driving room and a control system are arranged on the vehicle chassis, and a vehicle-mounted control system is arranged in the driving room; the climbing assault vehicle is characterized in that truss front legs and truss rear legs are arranged between the vehicle chassis and the uploading truss, a front collision cross beam is arranged at the front end of the vehicle chassis, the rear hydraulic legs are respectively arranged on left and right sides of the rear end, the front hydraulic legs are respectively arranged on left and right sides of the front collision cross beam, and the front hydraulic legs and the rear hydraulic legs are respectively controlled through the control system. The maximum climbing height of the climbing assault vehicle can reach more than 7 meters, and the climbing assault vehicle has the advantages of novel structure, reasonable axle-load distribution, flexible operation, rapid running, safety in use, stability and reliability, great climbing height, light overall weight, high structural stability and the like.

The invention discloses a connecting fitting with relatively high wire clamping strength. The connecting fitting comprises a base tube, a core tube, a crimping element and a press claw component, wherein a plurality of wire clamping bosses are arranged on the inner circumference wall of the base tube; the core tube is located in a tube cavity of the base tube; radial limiting slide holes are formed in the tube wall of the core tube; an inner thread region is arranged on the inner wall of the core tube; the press claw component comprises a plurality of press claws; each press claw comprises a press plate part, a guide slide block part and a drive surface; the crimping element comprises a body, an outer thread region and a crimping boss; the outer thread region is arranged on the outer circumference wall of the body; the crimping boss is arranged at the inner side end of the columnar body; the outer thread region of the crimping element is matched with the inner thread region of the core tube; the drive surface of each press claw is matched with the outer circumference wall of the crimping boss; the crimping element drives the crimping boss to rotate and advance towards the tube cavity of the core tube when rotating along the preset direction; the crimping boss pushes the press claws by pushing the drive surfaces, so that the press plate parts move outwards along the radial direction of the core tube to clamp power cables in wire clamping holes. The connecting fitting has relatively good mechanical and electric properties.

The invention discloses a multifunctional high-voltage transformer, comprising a base body, a plane nut, a pressing jaw assembly and a transformer; the pressing jaw assembly comprises three pressing jaws; the base body is equipped with a slide tube, a baffle table and three radial guide limiting holes; the plane nut and the transformer are sleeved on the outer peripheral wall of the slide tube of the base body; the plane nut is located between the radial guide limiting holes and the baffle table; every pressing jaw is located in a corresponding radial guide limiting hole; every pressing jaw is equipped with a pressing plate part, a guide slide block part and a drive threaded part; a fastening part is arranged on the outer peripheral wall of the plane nut; the plane nut is equipped with plane threaded parts in engaged fit with the drive threaded part of every pressing jaw; when the plane nut carries out reciprocating rotation, every pressing jaw is driven to move being close to or being away from the center of the slide tube. The multifunctional high-voltage transformer of the invention is convenient in installation.

The invention discloses an overhead power line connection wire clamp, which comprises a base body, a flat nut and three press claws, wherein the base body is provided with a slide tube, a stopping table and three radial guide limiting holes; each press claw is located in one corresponding radial guide limiting hole; the flat nut sleeves the outer circumference wall of the slide tube of the base body; each press claw is provided with a press plate part, a guide slide block part and a drive thread part; a flat thread part, which is matched with the drive thread parts, is arranged at one side end, far away from the stopping table, of the flat nut; the flat nut drives the flat thread part thereof to rotate in a reciprocating manner, so that the press claws are driven to be close to one another towards the center of the slide tube or far away from one another through the drive thread parts; each drive thread part is arranged on the wall of one side end, adjacent to the flat nut, of one corresponding anti-drop part; the shape of each anti-drop part is matched with one corresponding anti-drop slide hole; the guide parts and the anti-drop parts of the press claws penetrate through the press claws along the radial direction of the slide tube of the base body; and each drive thread part is arranged on the wall of one side end, adjacent to the flat nut, of the corresponding anti-drop part in a protruding manner. The overhead power line connection wire clamp has an excellent anti-looseness effect.

The invention discloses a stabbing metal ware, comprising a base body, a pressing ring and a set of pressing jaw assembly; the base body comprises a base tube part with an inner thread area, a core tube part and a connection plate part; multiple guide slide holes are arranged on the tube wall of the core tube part; the pressing jaw assembly comprises multiple pressing jaws; every pressing jaw is equipped with a pressing plate part and a guide slide post part; the guide slide post parts are formed by projecting from the pressing plate parts; the top end of every guide slide post part is equipped with a stress inclined plane; the pressing plate part of every pressing jaw is located in the tube cavity of the core tube part; every guide slide post part penetrates a corresponding guide slide hole, stretches out of the outer side of the core tube part and is located in the tube cavity of the base tube part; the pressing ring comprises a conical press-connection face arranged on the inner peripheral wall of the pressing ring and an outer threaded area arranged on the outer peripheral wall of the pressing ring; the conical press-connection face of the pressing ring and the stress inclined plane of every pressing jaw are in press connection; the outer thread area of the pressing ring fits with the inner thread area of the base tube part; the pressing ring pushes the pressing plate part of every pressing jaw to move towards the center of the core tube part. The stabbing metal ware has relatively good mechanical and electrical performance.

The invention discloses high voltage fittings for an electric power circuit, comprising a core pipe, two jacking bolts, two sets of crimping components and two sets of press claw components. The pipe wall of the core pipe is provided with radial guiding sliding holes. Each crimping component is provided with a pressure plate portion and a disconnecting prevention interconnecting portion; the crimping component is detachably arranged on the core pipe through the disconnecting prevention interconnecting portion. Each set of press claw components comprise a plurality of press claws; each press claw comprises a top plate portion, a guiding slide block portion and a driving surface; the top plate portion of each press claw is arranged in a mode of directly facing a corresponding crimping component pressure plate portion. The two jacking bolts are located on two side ends of the core pipe; each jacking bolt comprises a body, an outside thread zone and a jacking boss which is in a shape of a cone frustum; the driving surface of each press claw matches the peripheral wall of a corresponding jacking boss; at least one crimping component is provided with an installation screw hole, in which a temperature sensing device is arranged; when rotating in a preset direction, each jacking bolt pushes each press claw in a corresponding set of press claw components to move. The high voltage fittings are easy to install.

The invention discloses an electric power wire trapping fitting. The wire trapping fitting comprises a matrix, a press ring and a press claw assembly, wherein the matrix comprises a base tube part with an internal thread region, a core tube part and a connecting plate part; a plurality of guide sliding holes are formed in the wall of the core tube part; the press claw assembly comprises a plurality of press claws; each press claw is provided with a press plate part and a guide sliding column part; the guide slicing column parts are protruded from the press plate part for molding; a stress bevel is arranged at the top end of each guide sliding column part; the press plate part of each press claw is positioned in the cavity of the core tube part; each guide sliding column part penetrates a corresponding guide sliding hole, extends out of the core tube part and is positioned in the cavity of the base tube part; the press ring comprises a conical crimping surface on the internal wall of the press ring and an external thread region arranged on the external wall of the press ring; the conical crimping surface of the press ring is crimped on the stress bevel of each press claw, and the external thread region of the press ring is adaptive to the internal thread region of the base tube part; and the press ring pushes and presses the press plate part of each press claw to move toward the center of the core tube part. The wire trapping fitting has excellent mechanical electrical performance.

The invention discloses an electric power fitting for preventing cables from loosening, which comprises a pressing bolt, a core tube, a crimping assembly and a pressing claw assembly; a radial guiding sliding hole is arranged on the tube wall of the core tube; There is an internal thread area; the crimping assembly includes a plurality of crimping parts; each crimping part is provided with a pressure plate part and an anti-off connection part; the crimping parts are detachably arranged on the core tube through the anti-off connection part; the pressure claw assembly It includes a plurality of pressure claws; each pressure claw includes a top plate part, a guide slider part and a driving surface; each guide slider part is inserted into a corresponding radial guide slide hole; the top pressure bolt includes a body, an external thread area and a top pressure boss , the shape of the top pressure boss is a truncated cone; the external thread area of ​​the top pressure bolt is adapted to the internal thread area of ​​the core tube; the driving surface of each pressure claw is adapted to the outer peripheral wall of a corresponding top pressure boss; at least one pressure The connector is provided with a mounting screw hole for a built-in temperature sensing device. The installation fastness of the invention is stable and reliable.

The invention discloses an intelligent zero sequence current transformer with high line clamping intensity. The current transformer comprises a base tube, a core tube, a pressing joint part, a current transformer body and a pressing claw assembly, wherein at least three line clamping bosses are disposed on the inner circumferential wall of the base tube; the core tube is located in the cavity of the base tube; a radial limiting slide hole is formed in the tube wall of the core tube; an inner thread area is disposed on the inner wall of the core tube; the pressing claw assembly comprises multiple pressing claws; each pressing claw comprises a pressing plate part, a guide slide block part and a drive face; the pressing joint part comprises a body, an outer thread area and a pressing joint boss, and the outer thread area of the pressing joint part is fitted with the inner thread area of the core tube; the drive face of each pressing claw is fitted with the outer circumferential wall of the pressing joint boss; the current transformer body comprises an annular induction body; each line clamping hole is located in a hole cavity of the annular induction body; and an installation screw hole equipped with a built-in temperature sensing device is formed in the base tube. The current transformer disclosed by the invention has a function of real-time temperature monitoring.

The invention discloses handheld dust collection equipment and a power supply layout structure. The equipment comprises a dust cylinder assembly, an air outlet cylinder, a dust collection part, a handheld part, a supporting reinforcing part and a power module. The upper end of the handheld part is connected to the air outlet cylinder, the supporting reinforcing part is connected between the lowerend of the handheld part and the air outlet cylinder to define a holding hollow area, and the power module and the supporting reinforcing part enable the power module to be installed on the outer sideof the supporting reinforcing part through a locking mechanism. An electric connecting end assembly is arranged on the contact surface between the power supply module and the supporting reinforcing part, so that the power supply module can provide electric energy for the operation of the dust collection part; due to the arrangement mode, the whole dust collection equipment is compact in structureand reasonable in gravity center distribution; the external power supply module enables a user to dismount and mount the power supply module in a more time-saving, labor-saving, rapid and convenientmanner, and meanwhile, the connecting force after the power supply module is mounted is concentrated on the locking mechanism, so that the electric connecting end assembly is prevented from being deformed and damaged due to stress, and the problem of poor contact is avoided.

The invention discloses a high-voltage electric power stringing armor clamp. The high-voltage electric power stringing armor clamp comprises a base body, pressing rings and pressing pawl assemblies; the base body comprises a base tube portion, a core tube portion and a connecting plate portion; the inner walls of two side ends of the base tube portion are both provided with an internal screw thread area; guiding slide holes are formed in the tube wall of the core tube portion; each of the pressing pawl assemblies comprises a plurality of pressing pawls; each of the pressing pawls is provided with a pressing plate portion and a guiding slide column portion, wherein the guiding slide column portion is formed through projecting from the pressing plate portion, and the top end of the guiding slide column portion is provided with a stress inclined plane; the pressing plate portions are located at the tube cavity of the core tube portion; the pressing rings are arranged at two sides of the connecting plate portion respectively; each pressing ring is matched with a corresponding pressing pawl assembly; each of the pressing rings comprises a tapered crimping surface and an outer screw thread area, wherein the tapered crimping surface is crimped on a corresponding stress inclined plane; and when all the pressing rings rotate along a preset direction, the pressing rings push the pressing plate portions in the corresponding pressing pawl assembly to move toward the center of the core tube portion. The high-voltage electric power stringing armor clamp is easy to install, and has excellent electrical performance.

The invention discloses an improved electric power fitting for an overhead line.The improved electric power fitting comprises a base tube, a core tube, two sets of pressing claw assemblies and two planar nuts; the inner circumferential wall of the base tube is provided with pressing bosses, the tube wall of the core tube is provided with radial limiting slide holes, and the inner circumferential wall of the core tube is provided with a blocking table; each set of the pressing claw assembly comprises multiple pressing claws; the two planar nuts are both rotatably arranged in a tube cavity of the core tube and located on the two sides of the blocking table; each planar nut comprises a fastening portion and a planar thread portion matched with all the pressing claws in each set of the pressing claw assembly; the base tube is provided with an installing thread hole which penetrates through a base tube wall body in the radial direction and is internally provided with a temperature sensing device.The improved electric power fitting has the excellent anti-loosening effect.