62 results about "Left half" patented technology

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 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 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 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 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 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 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 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.

The invention provides a foldable and detachable thermal insulation layer frame and an assembling method thereof, and is characterized in that the thermal insulation layer frame is formed by splicing a left half frame and a right half frame, each of the left half frame and the right half frame consists of a main plate, a side plate and a top plate, and when the frame is not assembled, the side plates and the top plate are folded on the inner side surfaces of the main plates through rotating shaft connecting pieces; the assembling method comprises the following steps that 1, the side plates and the top plate are opened to preset positions, and the front side edge and the rear side edge of the top plate are connected with the top side edges of the two side plates; 2, a left half frame and a right half frame are assembled, specifically, the front side edge and the rear side edge of the top plate and the top side edges of the two side plates are fixedly connected through locking connecting pieces, the bottom edges of the side plates and the bottom edge of the main plate are fixedly connected through locking connecting pieces, and the left half frame and the right half frame are formed; 3, the left half frame and the right half frame are filled with heat preservation materials; and step 4, fixing the left half frame and the right half frame together to complete assembly. The technical problem that a heat preservation layer and a wrapping layer on the outer side can only be constructed on site is solved.

The utility model relates to the technical field of steel smelting, in particular to a molten steel sampling system, which comprises a sampling cup for sampling molten steel and a base positioning seat for downwards placing and positioning the sampling cup, the sampling cup is formed by splicing the left half cup body and the right half cup body left and right, so that the sampling consistency is better.

The utility model relates to the technical field of coke oven bridge pipe sealing, in particular to a coke oven bridge pipe sealing device which comprises a left half hoop and a right half hoop which are oppositely arranged and connected through bolts, and the longitudinal sections of the left half hoop and the right half hoop are arranged in a concave shape. Extrusion plates are mounted in the left half hoop and the right half hoop through radial moving assemblies; asbestos ropes wound by matching with the axle tube are mounted on the inner sides of the extrusion plates; communicating pipes are fixedly arranged on the side walls of the left half hoop and the right half hoop; the space between the left half hoop and the extrusion plate and the space between the right half hoop and the extrusion plate are filled with filler through communicating pipes. Compared with the prior art, the leakage point can be quickly blocked on line without disassembling the bridge pipe, the high cost of replacing the bridge pipe, long-time operation and the influence on the production rhythm are avoided, black smoke is reduced, the environment-friendly red line is prevented from being touched, and meanwhile the production cost is greatly reduced.

The utility model relates to the field of luggage, in particular to a high-strength luggage case shell with multiple convex-concave grains, which comprises a left half shell body and a right half shell body, a connecting area is arranged between the left half shell body and the right half shell body, the left half shell body and the right half shell body are connected through the connecting area to form a semi-enclosed cavity shell body which is integrally formed, and one face of the cavity shell body is open. The shell walls of the left half shell body and the right half shell body are different in color, a plurality of grooves or protruding edges are arranged on the shell walls of the left half shell body and the right half shell body respectively, and the directions of the grooves or the protruding edges on the shell walls are different. According to the luggage case shell, the luggage case shell is improved, the bending resistance and compression resistance section modulus of the luggage case shell is increased through the grooves and the convex edges which are longitudinally and transversely arranged in different areas on the shell body, the attractiveness of the luggage case shell is improved through double-color matching, and therefore the strength of a luggage case made of the luggage case shell can be improved; and the requirements of people for pursuing fashion and individuation can be met.

The waterproof and dustproof environment-friendly kraft paper box comprises a kraft paper box body, a left half box cover and a right half box cover, the two sides of the top end of the kraft paper box body are movably connected with the left half box cover and the right half box cover through folding mark belts respectively, and metal plate strips are installed on one side of the left half box cover and one side of the right half box cover respectively. One side of the left half box cover and one side of the right half box cover are each provided with an attaching groove, limiting holes are formed in the attaching grooves, the limiting holes are connected with the corresponding metal plate strips in an assembled mode, and magnetic butt joint strips are installed on one side of the left half box cover and one side of the right half box cover in an embedded mode; the left half box cover and the right half box cover are provided with the attaching grooves, the metal plate strips and the limiting holes and are connected through the magnetic butt joint strips, so that the left half box cover and the right half box cover have a good butt joint effect, the sealing stability of connection of the left half box cover and the right half box cover is guaranteed, repeated use is achieved, and good environment friendliness is achieved; and meanwhile, a good dustproof effect is achieved.

The utility model discloses a heating device for accessory production, and belongs to the technical field of bridge accessory production and machining, the heating device comprises a bottom groove, a first guide rail and a second guide rail which are parallel to each other are arranged in the bottom groove, and a left base and a right base are slidably connected above the first guide rail and the second guide rail; a left auxiliary frame is fixedly arranged above the left base, a left half furnace is fixedly arranged in the left auxiliary frame, a right auxiliary frame is fixedly arranged above the right base, a right half furnace is fixedly arranged in the right auxiliary frame, and the right half furnace and the left half furnace are correspondingly arranged; a driving assembly is arranged on the side edge of the bottom groove. Through the arrangement of the first guide rail, the second guide rail, the left base and the right base, an existing rail is improved, so that the left half furnace and the right half furnace can be moved easily for butt joint even if the heating device is not used for a long time and is reused, and the labor amount of operators is reduced.

The utility model discloses a kind of double-arch tunnel test devices simulating normal fault dislocation, belong to tunnel anti-seismic technical field, including left half box, right half box, left arch tunnel, right arch tunnel, the left half box, right half box side is provided with sliding surface, the left half box outside is provided with base, the base side is connected with loading device, the loading device is fixedly connected in base inner wall;The utility model is opened in fixed box body with the first installation hole similar to the appearance of double-arch tunnel, can carry out test to double-arch tunnel, by setting movable left half box fixed right half box sliding surface, and by longitudinal pushing to left half box, the longitudinal dislocation of double-arch tunnel in crossing normal fault can be simulated, to facilitate the simulation test for double arch or continuous supply, more widely.

This utility model belongs to the field of mold technology, and particularly relates to a blow molding mold for a plastic kettle with a bottom threaded tea strainer structure. This utility model includes a left half mold and a right half mold. The left half mold has, from top to bottom, a left blow opening, a left molding cavity, and a left bottom threaded molding structure. The right half mold has, from top to bottom, a right blow opening, a right molding cavity, and a right bottom threaded molding structure. When the mold is closed, the left and right blow openings are aligned, the left and right molding cavities are aligned, and the left and right bottom threaded molding structures are aligned. During the blow molding process, this utility model, through the precise cooperation of the left and right bottom threaded molding structures, simultaneously completes the forming of the bottom threaded tea strainer structure, completely eliminating secondary processing and greatly improving production efficiency.

The utility model belongs to the field of tool manufacturing, and particularly relates to a tool for carrying a marine main engine oil supply unit, which comprises a bottom frame and a semi-ellipsoid shell cover matched with the bottom frame, a first support frame is arranged on the left half part of the upper surface of the bottom frame, and a second support frame is arranged on the right half part of the upper surface of the bottom frame; the projections of the first supporting frame and the second supporting frame on the upper surface of the bottom frame are located in the upper surface of the bottom frame, a second opening is formed in the arc-shaped top end of the semi-ellipsoid shell cover, a first opening is formed in the end face of the semi-ellipsoid shell cover, and a locking device matched with the first opening is arranged on the bottom frame. The problem of how to manufacture a tool for preventing the oil supply unit from being damaged due to assembling, lightering and the like is solved.

This invention discloses a temperature-compensated diaphragm, its preparation method, and its application. The temperature-compensated diaphragm includes a diaphragm body made of a metal sheet, comprising a left half-diaphragm and a right half-diaphragm. Corrugated rotating bodies are disposed on the left and right half-diaphragms, and the left and right half-diaphragms are symmetrical about the centerline of the diaphragm body. The diaphragm body as a whole is either a positive or negative cone shape. By redesigning the diaphragm structure, this invention changes the temperature compensation of the diaphragm sensor from structural component compensation to diaphragm self-compensation. The compensation value range can be expanded from -15 to 15 μm in the prior art to -30 to 40 μm, resulting in a more significant compensation effect. Furthermore, it ensures temperature compensation while miniaturizing the diaphragm sensor, and significantly reduces the difficulty of selecting structural components and diaphragm materials, making sensor design simpler.

This invention discloses a dual-rope and hydraulic clamshell bucket, belonging to the technical field of material handling machines. It includes a left half-bucket and a right half-bucket. The left half-bucket has a fan-shaped side with a central shaft at the intersection of its two straight sides. The central shaft is fixedly connected to the front and rear sides of the left half-bucket. Multiple first hinge seats and second hinge seats are fixedly connected to the central shaft. The hinge holes of the first and second hinge seats are not on the same plane as the two perpendicular lines from the central shaft. Multiple third hinge seats are fixedly connected to the end of the left half-bucket furthest from the right half-bucket. The left and right half-buckets have identical structures. The left and right half-buckets are connected to a dual-rope control component via the third and first hinge seats, and to a hydraulic control component via the second and first hinge seats. The advantages of this invention over existing technologies are: through modular design, the switching between a dual-rope clamshell bucket and a hydraulic clamshell bucket can be achieved through simple disassembly and replacement.

This application relates to a method for manufacturing the palm portion of an energy-saving, chlorine-resistant, duplex stainless steel hand mold, comprising the following steps: Step S100, reverse stretching is performed on a metal sheet to create a reverse convex bulge at the middle finger position of the pre-formed palm portion to form a pre-formed sheet; Step S200, forward stretching is performed on the pre-formed sheet to obtain a blank left half or a blank right half of the palm portion; Step S300, the blank left half and blank right half are trimmed along the contour to obtain a left half and a right half of the palm; Step S400, the left half and right half of the palm are welded together to form the palm portion. This application solves the problem of stretching cracking during the palm portion manufacturing process.

The utility model discloses a frame main beam left half body and right half body welding fixture, which relates to the technical field of welding fixtures, and comprises a base, a supporting disc is arranged on the base, a connecting frame is arranged on the side wall of the supporting disc, a square groove is formed in the connecting frame, a supporting column is arranged on the square groove in a sliding mode, and a fixing frame is arranged at the top of the supporting disc. A movable plate is arranged on the fixing frame in a sliding mode, supporting plates are arranged outside the movable plate and the supporting columns, a fixing rod is arranged in the sliding groove, the fixing rod is sleeved with a plurality of sliding blocks in a sliding mode, springs are arranged between the sliding blocks, and the positions of the two supporting plates can be adjusted. The driving motor drives the lead screw to rotate, the lead screw drives the supporting column to slide along the square groove, the sliding block drives the clamping plates to get close to each other through the connecting rod, rapid fixing of the frame main beam is achieved, and the frame assembling quality and the production efficiency are improved.