119 results about "Left half" patented technology

The utility model discloses an insulating cover of a distribution network line lightning arrester. The insulating cover comprises a left half cover body and a right half cover body, one side of the left half cover body and one side of the right half cover body are connected with each other through a hinge structure, and the left half cover body and the right half cover body can rotate based on the hinge structure so that the left half cover body and the right half cover body can deviate from each other to be separated or can be folded and closed with each other; when the left half cover body and the right half cover body are mutually folded and closed, a first open hole is formed in the bottom, and the first open hole can fix the insulating cover between the umbrella skirts of the lightning arrester. Meanwhile, the left half cover body and the right half cover body can be mutually connected and locked through the lock catch structures arranged on the left half cover body and the right half cover body. According to the utility model, the left half cover body and the right half cover body can adopt an integrated modular design, the structure is simple, the left half cover body and the right half cover body can be connected and locked with each other through the lock catch structure during installation, and auxiliary fasteners such as pins are not needed, so that the installation is relatively convenient and rapid, and the live installation can be directly carried out when necessary.

The invention discloses a multipurpose adjustable metal plate bending die and a working principle, and relates to the technical field of bending dies. According to the multi-purpose adjustable metal plate bending die and the working principle, the multi-purpose adjustable metal plate bending die comprises an angle adjusting structure and a pressing plate structure, a base is arranged on the lower side of the angle adjusting structure, a two-way worm is arranged in the base, transverse sliding blocks are arranged on the two sides of the two-way worm, the transverse sliding blocks are connected with a movable base, four guide rods are arranged in the base, and the movable base is connected with the movable base. Four guide sliding sleeves are arranged on the lower side of the movable seat and coaxially connected with guide rods, a connecting seat is connected to the upper side of the movable seat, a connecting plate is arranged on the upper side of the connecting seat and connected with a push rod, the push rod is connected with a rotary supporting plate in a hinged mode, and the rotary supporting plate is connected with a left half template and a right half template. And the left half template and the right half template are connected through a connecting shaft.

The I-shaped code comprises a left half part and a right half part which can be buckled with the left half part, one side of the left half part is provided with a first groove used for being installed on a zipper belt, the other side of the left half part is provided with a first concave part and a first protrusion which are used for being buckled with the right half part, one end of the left half part is provided with a first step, and the other end of the left half part is provided with a second step. The other end of the left half part corresponds to the right half part, a second groove used for being installed on a zipper belt is formed in the side, away from the left half part, of the right half part, and a second step is arranged at the end, corresponding to the first step, of the right half part, so that the zipper belts on the two sides can be sewn respectively. After sewing is completed, the left half part and the right half part are meshed through the puller, so that the zipper is closed, operation is convenient, and the sewing efficiency is further improved.

The utility model discloses a single stand column shifting machine which comprises a left bottom trundle seat, a front bottom stand column seat, a right bottom trundle seat, a single three-dimensional stand column, a left half seat, a right half seat and a seat cushion. The inner side of the left bottom trundle seat is detachably connected and fixed with the left side of the front bottom stand column seat in an inserted manner, and the inner side of the right bottom trundle seat is detachably connected and fixed with the right side of the front bottom stand column seat in an inserted manner; the bottom section of the single three-dimensional column is detachably connected and fixed to the top of the middle of the front bottom stand column base in an inserted mode. The front upper right corner of the left half seat is detachably hinged to the left side of the top of the single three-dimensional column, and the front upper left corner of the right half seat is detachably hinged to the right side of the top of the single three-dimensional column; a left half seat and a right half seat are arranged on the rear portion of the single three-dimensional column, the left half seat can horizontally rotate in the left circumferential direction relative to the single three-dimensional column, and the right half seat can horizontally rotate in the right circumferential direction relative to the single three-dimensional column. The seat cushion is detachably placed on a common seat plate of the left half seat and the right half seat; the product adopts a modular design, and each large part is packaged in a split manner, so that the packaging volume is convenient to compress.

This invention discloses a two-dimensional material transfer device and method. The device includes a base, with a first motor-driven angle adjustment unit fixed to the right half of the base; a cantilever is horizontally arranged to the left on a first slide, and a tape roll is located above the cantilever. A second ball screw assembly is horizontally arranged on the left half of the base, and vertical fixing frames are fixed to the front and rear sides of the second slide respectively; a support frame is located in the lower half between the two vertical fixing frames; a platform is located in the upper half between the two vertical fixing frames, and a height adjustment unit is located between the support frame and the platform; the platform is located below the tape pressure roller. This invention utilizes a multi-degree-of-freedom coordinated motion system consisting of a vertical displacement axis, a horizontal displacement axis, and a rotating axis that can drive the vertical axis to achieve continuous angle adjustment, enabling precise control of angle, speed, and roller pressure during the peeling and bonding process of two-dimensional materials.

1. Name of the product in this design: Left half of a food packaging bag. 2. Application of this design: The entire product is used for food packaging; a portion of this design is used for food packaging bags. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 2 3D diagram 1. 5. Design 2 is designated as the basic design. 6. Other situations requiring explanation: The dotted line portion of Design 1 does not require protection.

The utility model provides an auxiliary device for mechanical equipment installation, which relates to the field of mechanical equipment installation and comprises two groups of hoops clamped on the outer side of a pipeline, the hoops are rotatably connected on the inner side of a clamping seat through rotating shafts, and the inner sides of the left half piece and the right half piece of each hoop are in threaded connection with a plurality of screw groups for pushing and adjusting the position of the pipeline. The screw set comprises an angle adjusting bolt located above the inner side of the hoop and away from one side of the pipe orifice and a supporting adjusting bolt located below the inner side of the hoop and close to one side of the pipe orifice. The hoop is used for clamping the outer sides of two pipelines, the pipelines are preliminarily aligned, the center positions of the pipelines are adjusted by rotating the angle adjusting bolts, the horizontal adjusting bolts and the supporting adjusting bolts, and therefore the pipelines can be aligned, deviation generated during pipeline alignment installation is reduced, and the precision of pipeline butt joint installation is improved.

The utility model relates to the technical field of vehicle-mounted refrigerators, in particular to a shell structure which comprises a shell, a containing cavity with an opening in the front end is formed in the shell, the shell comprises a left half shell and a right half shell which are arranged left and right and spliced with each other, and the containing cavity is defined by the left half shell and the right half shell. The framework of the vehicle-mounted refrigerator is formed by combining the left half shell and the right half shell, the structure is simple and reasonable, assembling operation is convenient, the depth of the left half shell and the depth of the right half shell are small, the mold cost is low, demolding is easy, and the production cost of the vehicle-mounted refrigerator can be effectively reduced.

The utility model discloses a high-strength special-shaped steel pipe, which relates to the technical field of special-shaped steel pipes and comprises a left half pipe and a right half pipe, the left half pipe and the right half pipe are welded and connected, the left half pipe and the right half pipe are made of the same materials and are arranged in a mirror image manner, and a plurality of groups of locking hoops are welded on the outer walls of the left half pipe and the right half pipe. According to the high-strength special-shaped steel pipe, due to the fact that the high-strength special-shaped steel pipe is formed by welding the left half pipe and the right half pipe, the mode of double-face simultaneous welding or multi-person simultaneous welding can be adopted for symmetrical welding, and therefore a complex special-shaped steel pipe structure can be conveniently machined, and production efficiency can be remarkably improved.

The invention provides a drilling machine positioning device for rapidly clamping and positioning a bench vice, and belongs to the technical field of machining. One end of the left semicircular ring is detachably connected with one end of the right semicircular ring to form an annular structure which can be sleeved outside a drilling machine column; the other ends of the left semicircular ring and the right semicircular ring are detachably connected and are connected with a cam wrench through a columnar nut; a long groove extending in the axial direction of the left semicircular ring is formed in the inner side of the left semicircular ring, and the pressing block is arranged in the long groove in a sliding mode. One end of the long rod is used for being fixedly connected with the bench vice, and the other end of the long rod penetrates through an outer circular through hole formed in the left semicircular ring; the pressing block is provided with a first contact face and a second contact face, the first contact face is matched with the peripheral face of the long rod, and the second contact face is matched with the peripheral face of the drilling machine round stand column. When the cam wrench is rotated, the left semi-circular ring and the right semi-circular ring can be driven at the same time to clamp the drilling machine circular stand column, and the pressing block is driven to press the long rod. The problems that in existing drilling machine machining, the bench vice positioning and adjusting process is tedious, and efficiency is low are solved.

The utility model provides a heating shaping cap for perm, which comprises a main body, the whole main body is round, the main body is formed by connecting two cylinders, the lower half part of the main body is larger than the upper half part of the main body, the inside of the main body is hollowed, a round groove is arranged at the bottom of the main body, the outer wall of the round groove is fixed on the inner wall of the main body, and the bottom of the round groove and the bottom of the main body are on the same horizontal line. The interior of the circular groove is hollow, a telescopic circular pipe is arranged above the circular groove and is divided into a left half pipe and a right half pipe, the left half pipe of the telescopic circular pipe is fixed to the inner wall of the main body, the right half pipe of the telescopic circular pipe can move, the interior of the right half pipe is hollow, a spring is arranged in the right half pipe of the telescopic circular pipe, and fixing blocks are arranged at the two ends of the spring; the fixing block is connected to the left half pipe of the telescopic circular pipe.

The utility model discloses an automatic turn ratio changing current transformer which comprises a left shell and a right shell, the left shell and the right shell are spliced with each other, a left half shaft is arranged in the left shell, butt joint lugs are arranged at the two ends of the left half shaft, a right half shaft is arranged in the right shell, butt joint grooves are formed in the two ends of the right half shaft, and the butt joint grooves and the butt joint lugs are spliced with each other. Coils are installed on the left half shaft and the right half shaft, and the left shell and the right shell are spliced through the butt joint grooves and the butt joint lugs, so that installation of the left shell and the right shell is completed. The butt joint groove and the butt joint lug are spliced to form a circular structure, and the circular structure is used for placing a coil; the whole structure is easy to disassemble and assemble.

The invention discloses an efficient and energy-saving vacuum coating machine which comprises a machine shell, two sets of sealing plates are fixedly installed in the machine shell and divide the machine shell into a left half part and a right half part, the right half part of the machine shell is partitioned into a sealing cavity by the two sets of sealing plates, a roughing pump and a high vacuum pump are fixedly installed in the left half part of the machine shell, and a vacuum pump is fixedly installed in the right half part of the machine shell. And the air exhaust ends of the roughing pump and the high vacuum pump penetrate through one group of sealing plates and are positioned in the sealing cavity, and a coating mechanism is glidingly mounted in the sealing cavity formed by sealing the two groups of sealing plates. Through the design of the coating mechanism and the cooling mechanism, the whole process of clamping, vacuumizing, coating and cooling is completed in a single sealing cavity through the collaborative design of'dynamic pump set switching + directional focusing heating + partitioned heat insulation and heat dissipation + negative pressure reinforced sealing ', energy loss of multi-cavity transition is reduced, invalid energy consumption is reduced through accurate control, and the production efficiency is improved. And unification of high efficiency, energy conservation and high-quality coating is realized.

The utility model discloses a novel pipe pile pouring mold, including lower mould and upper mould, and upper mould is formed by left half mould and right half mould, and left half mould is hinged in one side of lower mould, and right half mould is hinged in the other side of lower mould, and the detachable connection of left half mould and right half mould is through a plurality of bolts, and lower mould both sides are equipped with a plurality of lifting lugs respectively. A kind of support frame of pipe pile pouring mold, including frame body and being equipped with the arc-shaped supporting groove on frame body, and arc-shaped supporting groove is matched with lower mould. The pipe pile pouring mold and its support frame of the utility model, clamping is quickly simple, can effectively avoid the condition that concrete is scattered in a large amount when concrete charging, reduce the workload of operator, reduce hoisting workload, improve the work efficiency of pipe pile moulding.

The utility model discloses a color master batch pelletizing device, relates to the technical field of color master batch pelletizing equipment, including frame and extruder, the left half part of frame is fixedly equipped with the workbin, the right side of extruder is equipped with the extrusion head, the right end of extrusion head extends into the workbin, the inside of the right end of extrusion head is rotatingly connected with the rotating shaft, the inside of the right end of extrusion head extends into the workbin, and the inside of the right end of extrusion head is rotatingly connected with the rotating shaft. A handle head is fixedly installed on the outer wall of the left end of the rotating shaft, tool holders are fixedly installed on the outer side of the handle head at equal angles, clamping blocks are arranged on the outer sides of the tool holders, and fixing bolts are symmetrically arranged on the inner sides of the clamping blocks. By the adoption of the structure, the clamping block is installed on the tool holder through the two fixing bolts, the fixing bolts penetrate through the blade, meanwhile, the clamping block can be matched with the tool holder to clamp and fix the blade, when the blade is replaced, the blade can be conveniently disassembled, assembled and used only by disassembling the fixing bolts and taking down the clamping block, and operation is convenient. Therefore, the use cost of the equipment can be greatly reduced.

The utility model discloses an electric power well cable binding information ring, and belongs to electric power well cable fittings. The electric power well cable binding information ring comprises a two-dimensional code information disc and a ring body. The ring body is composed of a left half ring and a right half ring, the upper end of the left half ring abuts against the upper end of the right half ring, and the lower end of the left half ring is hinged to the lower end of the right half ring. And the two-dimensional code information disc connects the upper end part of the left half ring and the upper end part of the right half ring together to form a hoop structure. The electric power well cable binding ring has the advantages that a technician does not need blind assembly in the process of binding the ring body to the electric power well cable, and operation is convenient.

The invention discloses a full-automatic ball welding machine and relates to the technical field of hot welding production, the full-automatic ball welding machine comprises a manipulator, a ball mold mechanism and a hot welding mechanism, the ball mold mechanism comprises a first driving mechanism, a first sliding rail, a left half mold and a right half mold, the left half mold and the right half mold are symmetrically arranged on the first sliding rail in a sliding mode, a left ball groove is formed in the left half mold, and a right ball groove is formed in the right half mold; a left ball groove is formed in the left half mold, a right ball groove is formed in the right half mold, the left ball groove and the right ball groove are symmetrically formed, the first driving mechanism drives the left half mold and the right half mold to be separated or folded along the first sliding rail at the same time, and the mechanical arm is matched with the ball mold mechanism; the hot welding mechanism comprises a second driving mechanism, a second sliding rail and a welding plate; the spherical product manufactured through the method has few welding marks, the time needed for grinding is shorter, the generated waste is less, the integrated operation of demolding, end face melting and ball combining of the plastic hemisphere is achieved, the waiting time between all the working procedures is greatly shortened, and the production efficiency is improved.

The invention provides a chain ring dismounting tool and a chain ring dismounting method. The chain ring dismounting tool comprises a left hinge rod piece, a right hinge rod piece, a left groove type connecting piece, a right groove type connecting piece, a left half-cut connecting rod and a right half-cut connecting rod. Wherein the left hinged rod piece and the right hinged rod piece are arranged in a V shape, the ends of the left hinged rod piece and the right hinged rod piece are hinged, the lower end of the left groove-shaped connecting piece is fixedly connected with the left hinged rod piece, the lower end of the right groove-shaped connecting piece is fixedly connected with the right hinged rod piece, and assembling holes are formed in the left groove-shaped connecting piece and the right groove-shaped connecting piece. The long screw rod is arranged in the assembling holes of the left groove-shaped connecting piece and the right groove-shaped connecting piece in a penetrating manner, and adjusting nuts are arranged at the two end parts of the long screw rod; the lower end of the left half-cut connecting rod is fixedly connected with the left groove-shaped connecting piece, the lower end of the right half-cut connecting rod is fixedly connected with the right groove-shaped connecting piece, a C-shaped groove in the end of the left half-cut connecting rod and a C-shaped groove in the end of the right half-cut connecting rod are oppositely arranged, groove openings face the inner side, and the chain rings can be rapidly disassembled and replaced.

The utility model discloses a metal winding type gasket convenient to position, which relates to the technical field of gaskets and comprises a gasket body, a left half gasket, an adjusting end and a right half gasket, the gasket body comprises the left half gasket, the adjusting end and the right half gasket, one end of the left half gasket is fixedly connected with the adjusting end, and the other end of the left half gasket is fixedly connected with the adjusting end. The other end of the adjusting end is fixedly connected with a right half gasket, and the left half gasket and the right half gasket are each composed of a metal inner gasket, a cross-shaped elastic sealing ring and a metal outer gasket. According to the gasket body, the left half gasket, the adjusting end and the right half gasket provided by the utility model, the thickness is adjusted to be suitable for grooves with different depths on the basis that the gasket body, the left half gasket, the adjusting end and the right half gasket are positioned through magnetic attraction during installation, so that the problems that an existing metal spiral wound gasket lacks positioning during use and is inconvenient to use; and the thickness can not be adjusted, so that the sealing effect is influenced by moving in grooves formed in connecting ends of flanges, pipelines and the like.

The application discloses a multi-plate spliced screw mounting channel which is composed of seven butt-jointed steel plates, characterized in that: a left straight plate (20) is vertically connected to the left end of a horizontal plate (40), a left end plate (10) is connected to the lower end of the left straight plate (20), a left inclined plate (30) is connected to the inner side of the left half of the horizontal plate (40) and the inner side of the lower half of the left straight plate (20), a right straight plate (60) is vertically connected to the right end of the horizontal plate (40), a right end plate (70) is connected to the lower end of the right straight plate (60), a right inclined plate (50) is connected to the inner side of the right half of the horizontal plate (40) and the inner side of the lower half of the right straight plate (60), and the left straight plate (20) and the right straight plate (60), the left inclined plate (30) and the right inclined plate (50), the left end plate (10) and the right end plate (70) are all left-right symmetrical with the center line of the horizontal plate (40). The multi-plate spliced screw mounting channel has the advantages of high installation and machining precision, low manufacturing cost and reliable strength.

The invention relates to the technical field of plastic molds, and discloses a plastic processing mold and an operation method.The plastic processing mold comprises a rotary workbench and blow molding equipment on one side of the rotary workbench, a plurality of molds composed of a left half mold and a right half mold are annularly arranged on the upper surface of the rotary workbench, and damping sliding tables are arranged on the outer sides of the half molds; the bottom end of the damping sliding table is fixedly connected with the rotary workbench, a sliding block of the damping sliding table is rotationally connected with the half mold through a torsional spring rotating shaft, and a demolding assembly is arranged on one side of the mold. By arranging a cold air channel, an air guide head and other structures, double cooling of the outer side and the inner side of a plastic bottle is achieved, the time needed by cooling and shaping of the plastic bottle is greatly shortened, the situation that a production process is occupied due to long-time staying of molds is avoided, and the large-scale batch production requirement is met; and the overall processing efficiency is further improved.

The utility model relates to the technical field of electronic ceramic production, in particular to a humidifying device for electronic ceramic sintering, the humidifying device is of a cylindrical structure composed of a left half box and a right half box, the inner wall of the right half box is provided with a fixing disc which is coaxially installed, and the inner side of the fixing disc is provided with a circular hollow hole. A circular hollow hole is formed in the fixing disc, limiting grooves are evenly distributed in the inner wall of the circular hollow hole, a rotary seat is rotationally installed in the circular hollow hole through a rotary bearing, a plurality of limiting clamping plates distributed in the circumferential direction are rotationally installed outside the rotary seat, and the limiting clamping plates rotate forwards and backwards along with the rotary seat and are clamped and matched with the limiting grooves in the fixing disc. Materials are subjected to the two processes of spraying humidification and immersion humidification, the good humidity can be achieved, the subsequent sintering quality is guaranteed, the angle of the whole barrel can be turned over according to the actual requirement, rapid granulation can be achieved, particles can be rapidly released, and the material circulation efficiency can be improved.

The utility model discloses a welding gun grip modified structure which comprises a left half grip shell and a right half grip shell, the left half grip shell comprises a first bearing portion and a first handheld portion which are arranged up and down, and the right half grip shell is provided with a second bearing portion and a second handheld portion. A spring seat is rotationally connected to the front side between the left half grip shell and the right half grip shell, a compression spring is connected to the rear side of the spring seat, the lower ends of the left half grip shell and the right half grip shell are sleeved with locking rings, and a plurality of buckles are connected to the interiors of the left half grip shell and the right half grip shell; and welding gun wrenches are inserted into the left half grip shell and the right half grip shell from the lower ends. The improved grip has the advantages that the improved grip structure is simple and efficient in design, can be quickly assembled and spliced and can be used as a welding gun operation option, the control mode of a welding gun is changed when a welding seam is long or the welding time is long, the labor intensity of a welder is greatly relieved, and the improved grip plays a good role in assisting and promoting the welding quality of the welding seam.

The present application relates to the technical field of steel bar connecting joint detection device, and specifically discloses a device for in-situ testing of bearing capacity of steel bar connecting joint, which comprises a through jack, the through jack comprises a left half jack and a right half jack which are detachably connected, and the left half jack and the right half jack are respectively provided with hydraulic structures which can be mutually attached and used for stretching the steel bars at both ends, the hydraulic structures in the left half jack and the right half jack are coaxially provided with through holes for the steel bars and the steel bar mechanical connecting head to pass through when the hydraulic structures are spliced, and the device further comprises a spliced sleeve head which is sleeved on the steel bar and can be pushed out by the end of the hydraulic structure output end, and a clamping piece which can be placed between the sleeve head and the gap of the steel bar, so that the problems of low detection efficiency, poor traceability and great difficulty in ensuring authenticity in the traditional random test piece inspection of mechanical connecting joint quality are solved.

The application discloses a kind of test pipe material forming limit path loading method, first part will complete half tube be cut into specified shape and always under the action of hemispherical rigid punch drawing, it is measured that first, second principal strain direction of half tube test piece is all in tension-compression state, obtain the left half of strain forming limit;Second part changes rigid punch structure and keeps the shape of half tube test piece complete, it is measured that first, second principal strain direction of half tube test piece is all in tension-tension state, obtain the right half of strain forming limit.The application provides the obtaining method of pipe material strain forming limit diagram, makes up the vacancy that complete forming limit diagram is obtained by pipe material rigid hemispherical rigid punch method;The obtaining method is realized by replacing different shapes and sizes of half tube test piece and different shapes and sizes of rigid punch;The method has the advantages of convenient operation, test safety, few moulds, high efficiency, low cost and the like.

The utility model relates to the technical field of machine tool protection, in particular to a machine tool protective cover capable of being disassembled quickly, which comprises a left half box body, a right half box body is arranged on the right side of the left half box body, a mounting base is arranged at the bottom of the left half box body and the right half box body, and a groove is formed in the side face of the mounting base. Grooves are formed in the left half box body and the right half box body, digging grooves are formed in the grooves, movable grooves and matching grooves are formed in the horizontal sections of the bottoms of the left half box body and the right half box body, baffles are arranged in the movable grooves, rotating shafts are arranged at the center positions of the sides, away from the mounting base, of the baffles, and springs are arranged on the two sides of the rotating shafts. A plug pin is arranged on the side, close to the mounting base, of the baffle, a rectangular limiting check block is arranged at the end, away from the baffle, of the rotating shaft, and a pull ring is arranged on the other side of the rectangular limiting check block. Through the cooperation of the structure, the purpose of quickly disassembling the left half box body and the right half box body is achieved.

The utility model relates to the technical field of shaftless rotor correction, in particular to a device for correcting balance of a new energy shaftless rotor. According to the technical scheme, a shaftless rotor body is provided with a groove, a second fixing hole is formed in the position, located in the groove, of the shaftless rotor body in a penetrating mode, a right half shaft is installed in the groove, a left half shaft is installed on the side, away from the right half shaft, of the shaftless rotor body, and the left half shaft, the shaftless rotor body and the right half shaft are locked and fixed through fixing pieces. The ends, located on the outer side of the shaftless rotor body, of the left half shaft and the right half shaft are supporting ends. The left half shaft and the right half shaft are provided with the fixing holes and the insertion rod insertion holes which are matched with each other, the fixing pieces penetrate through the fixing holes to achieve tight connection of components, and the insertion rod insertion holes are matched to achieve accurate limiting and alignment. The design of the supporting end enables installation to be convenient, stability and accuracy of the device during high-speed rotation correction are guaranteed in an all-around mode, and the problem of balance correction of the new energy shaftless rotor is effectively solved.

The utility model discloses a pin coupling capable of being quickly assembled and disassembled and convenient to maintain, which relates to the technical field of pin couplings and comprises a left half coupling, a right half coupling, a plurality of groups of pin holes formed in the left half coupling and nylon pins arranged in the pin holes. A protection mechanism is arranged outside the left half coupling and the right half coupling and comprises a telescopic hose, a left protection shell arranged outside the left half coupling and a right protection shell arranged outside the right half coupling. By means of the designed protection mechanism, the left protection shell, the right protection shell and the rubber sealing ring are tightly attached to the left protection shell and the right protection shell, the probability that dust invades from a large gap between the left coupler and the right coupler is reduced, and the abrasion influence on the inner wall of a pin hole and the inner wall of the right half coupler is reduced; therefore, the transmission performance of the pin coupling is improved.

The kitchen funnel device comprises a funnel body and a lining, the funnel body is divided into a left half part and a right half part, one side of the upper portion of the left half part and one side of the upper portion of the right half part are connected together through a hinge or a pin shaft, a clamping belt and a clamping buckle are arranged on the lower portion of the left half part, and a clamping ring is arranged on the lower portion of the right half part. The lower portion of the funnel body is fixed outside a container opening through the clamping belt and the buckle, the upper portion of the funnel body is made of non-elastic materials, the lower portion of the funnel body is made of elastic materials, the lining is in a funnel shape after being unfolded, the upper end of the lining is clamped on the edge of the upper portion of the funnel body through the clamp, and the whole lining is located inside the funnel body. The lower part of the device can be adapted to containers with different small and large diameters, and the device does not need to be cleaned after being used by replacing the lining.

This utility model provides a shielding cover for high-voltage testing, including an upper cover and a lower cover located below the upper cover. The top of the lower cover is provided with a sliding groove, and the lower cover is divided into a left half and a right half. One end of the left half is provided with a hinge to connect to the right half. The upper cover is divided into multiple first shells and multiple second shells. One end of the first shell is provided with a first insert block and the other end is provided with a first insertion hole. One end of the second shell is provided with a second insert block that can connect to the first insertion hole, and the other end is provided with a second insertion hole that can connect to the first insert block. The bottom of both the first shell and the second shell is provided with a slider that matches the sliding groove, and the first shell and the second shell are connected in the sliding groove by the slider. By splitting the lower cover into a left half and a right half, and the upper cover into multiple first shells and second shells, the first shells and the second shells are slidably connected in the sliding groove by the slider, partial disassembly is achieved to meet different testing requirements.