202 results about "Right trapezoid" patented technology

The invention discloses an antenna optimization method and system based on a right trapezoid half-mode resonator. The method comprises the following steps: acquiring initial structure parameters of the right trapezoid half-mode resonator; constructing a three-dimensional electromagnetic field simulation model based on the initial structure parameters, calculating electromagnetic field distribution characteristics of the right-angled trapezoidal half-mode resonator through a finite element analysis method, and performing primary verification on the electromagnetic field distribution characteristics; generating an optimization objective function; carrying out iterative optimization on the geometric parameters of the right trapezoid half-mode resonator by adopting a genetic algorithm; re-calculating electromagnetic field distribution characteristics based on the optimized geometric parameters, and carrying out secondary verification on the electromagnetic field distribution characteristics; and adjusting the position of the feed port and the thickness of the metal patch according to the deviation direction. The method has the following advantages and effects that the problem that a traditional design method depends on experience trial-and-error or single-target optimization, and collaborative optimization of multiple parameters is difficult to achieve under the complex electromagnetic coupling effect is solved.

The utility model discloses a steel wedge slope adjusting device in a capping beam supporting system, which comprises a lower wedge block and an upper wedge block, the lower wedge block and the upper wedge block are both right trapezoid blocks, the inclined plane of the upper wedge block and the inclined plane of the lower wedge block are attached to each other, a screw rod is inserted among a first notch, a second notch, a third notch and a fourth notch, and the screw rod is connected with the lower wedge block. The outer side of the screw rod is connected with two nuts in a threaded mode, and the two nuts are located on the left side of the upper wedge block and the right side of the lower wedge block respectively. According to the steel wedge slope adjusting device in the bent cap supporting system, the steel wedge device for fine adjustment of the elevation and the cross slope is arranged in the structure supporting system, and the elevation of the device is adjusted up and down by screwing a screw rod in the device and extruding and releasing a wedge-shaped block. Corresponding cross slope bolt holes are selected synchronously according to designed cross slope parameter values, long and short bolts penetrate into the holes, the top face of the device rotates around a rotating shaft, and cross slope matching of the device is achieved.

The utility model discloses an urban channel embankment retaining wall structure which comprises an embankment, a water retaining system and a drainage system. The dike comprises a gravity type retaining wall and a concrete bottom plate, the gravity type retaining wall is of a right trapezoid section, the upstream side is vertical, the top of the concrete bottom plate is a horizontal plane and bears the gravity type retaining wall, the upstream side is thickened, and the dike is arranged on the two sides of the channel; the water retaining system comprises at least two groups of breast boards which can be moved into or out of the channel to connect and disconnect water flow, and an enclosure space formed by the two groups of breast boards and the dike is used as a construction area; the drainage system comprises a drainage main pipe and a drainage branch pipe, the drainage main pipe is arranged along the backwater side slope toe of the gravity type retaining wall in a full-length mode and located at the top of the concrete bottom plate, and the drainage branch pipe is located at the top of the concrete bottom plate and communicated with the channel at one end and connected into the drainage main pipe at the other end. The front portion of each drainage branch pipe is provided with a gate groove and a gate capable of sliding up and down along the gate groove, the drainage system is opened and closed by opening and closing the gates, and the drainage branch pipes are arranged on the outer sides of the at least two breast boards to serve as water inlet ends and water outlet ends respectively. According to the utility model, through gate lifting, breast board assembly and drainage of the drainage main pipe / branch pipe, the construction diversion of the dredging and overhauling channel section can be realized.

The utility model discloses a petroleum transmission pipeline, and mainly relates to the technical field of transmission pipelines. Comprising two pipeline bodies and a butt joint structure, the section of each pipeline body is round, the butt joint structure is located at the ends, close to each other, of the two pipeline bodies, the butt joint structure comprises a connecting cylinder, the two ends of the connecting cylinder are attached to the ends, close to each other, of the two pipeline bodies correspondingly, and two sliding rings are slidably connected to the outer wall of the connecting cylinder; the sides, away from each other, of the two sliding rings are fixedly connected with top plates, the sections of the top plates are in a right trapezoid shape, the outer wall of the connecting cylinder is fixedly connected with a positioning rod, the section of the positioning rod is in a Z shape, and the arc face of the positioning rod is slidably connected with a positioning plate. The petroleum transmission pipeline butt joint device has the advantages that a worker can conveniently conduct butt joint or separation on petroleum transmission pipelines, the petroleum transmission pipelines can be adjusted to the proper length according to actual needs, and therefore the application range of the petroleum transmission pipelines is widened.

The present invention relates to the technical field of horticultural planting, and discloses an automatic fertilizing device for horticultural product planting, including a housing. A processing groove is provided on the side surface of the housing, and a cover plate is fixedly connected to the side wall of the processing groove. A fixing plate is fixedly connected to the side surface of the housing, and a connecting shaft is rotatably connected to the side surface of the fixing plate. A wheel body is sleeved on the outer wall of the connecting shaft. A soil-turning mechanism for turning the soil is arranged on the surface of the housing, and a covering mechanism for piling up soil for covering is arranged inside the processing groove. There is a soil-turning mechanism. Before fertilizing the plants, with continuous pushing by people, the continuous movement of the fertilizing device is realized. Since the longitudinal section of the housing is arranged in a right trapezoid structure, as the housing moves, the soil will be shoveled. As the soil on the housing is continuously squeezed, the connecting plate will be squeezed, causing the spring to be in a compressed state, and the soil will enter the processing groove through the groove.

The utility model discloses a false tooth support, and relates to the field of medical instruments, the false tooth support comprises a connecting body, the edge of the connecting body is provided with a plurality of arc-shaped grooves matched with teeth in shape, the two ends of the connecting body are fixedly connected with clamping ring main bodies through connecting pieces, and the ends, away from the connecting body, of the two clamping ring main bodies are fixedly connected with a false tooth retention net through bolts; a connecting plate is fixedly connected between the two false tooth retention nets, the connecting piece comprises a right trapezoid clamping block which is fixedly connected to the end, away from the clamping ring body, of a connecting rod, a push rod assembly is arranged at the position, corresponding to the clamping groove, of the top of the connecting body, and the push rod assembly comprises a disc which is located in the second sliding groove and can longitudinally slide. The center of the top of the disc is fixedly sleeved with a push rod body. In conclusion, according to the device, the clamping ring body can be independently detached, the clamping ring body is rectified and replaced, and operation is simpler and more convenient.

The invention relates to the technical field of LED module preparation, and discloses a display module capable of preventing elevation low-temperature falling dead lamps and preparation equipment thereof.The display module comprises a structure body, the four corners of the structure body are all inclined planes, a mounting space is formed in the middle of the structure body, a light guide plate is pasted in the mounting space, and LED lamps are connected to the periphery of the light guide plate; positioning blocks are arranged at the positions, adjacent to the slopes, in the periphery of the mounting space, the cross section of each positioning block is in a right trapezoid shape, the right-angle direction faces the light guide plate, two side plates are further arranged on the two sides of the structure body, and square and long and thin rectangular openings are symmetrically formed in the connecting positions of the two side plates and the structure body from inside to outside and used for locking the light guide plate after the side plates are bent. Through the design of the inclined planes at the four corners of the structure main body, the positioning blocks in the mounting space and a side plate bending and locking mechanism, displacement of the light guide plate under high-pressure impact is limited jointly, and damage caused by the fact that the light guide plate impacts an LED lamp is avoided.

The rigidity improving device comprises a wedge block and a screw, the wedge block is a block-shaped body, the two sides of the wedge block in the width direction are both provided with radians, and the radians of the two sides of the wedge block are consistent; the section of the wedge block is an inverted right trapezoid; one side of the wedge block in the width direction is a vertical surface, the vertical surface of the wedge block is a working surface, and the working surface faces the excircle surface of the main shaft; the other side of the wedge block in the width direction is an inclined surface, the inclined surface of the wedge block is a second working surface, and the second working surface is matched with the inclined surface of the workbench base; the two sides of the top of the wedge block in the length direction are each provided with a combining hole in the vertical direction, and the interiors of the combining holes are each in threaded connection with a screw. A dismounting hole in the vertical direction is formed in the middle position of the top of the wedge block between the two fastening holes; the six wedge blocks are evenly arranged in the circumferential direction of the main shaft at intervals. The rigidity of the main shaft can be effectively guaranteed and improved, and meanwhile the working precision and stability of a machine tool are guaranteed.

The utility model discloses a special lifting appliance for an integral mixed tower assembly. The special lifting appliance is characterized by comprising a main lifting beam 1, a secondary lifting beam 2, a main lifting hook seat 3, a secondary lifting hook seat 4, a lifting beam supporting plate 5 and a main and secondary lifting beam connecting seat 6, the main lifting beam 1 is composed of a parallel lifting beam 23 and a main lifting beam end face reinforcing plate 12; the secondary lifting beam 2 consists of a secondary lifting beam horizontal plate 10, a secondary lifting beam vertical plate 11 and a secondary lifting beam reinforcing support plate 7; the main lifting hook seat 3 consists of a main and secondary lifting beam connecting hole 15, a right trapezoid reinforcing plate 17, a main lifting hook seat bottom plate 24, a main lifting hook seat vertical plate 25 and a main lifting hook seat horizontal lifting round pipe 26; a secondary lifting hook hoisting hole 14 is formed in the secondary lifting hook seat 4; the lifting beam supporting plate 5 is composed of a long-strip-shaped lifting beam supporting plate reinforcing plate 18, a lifting beam supporting plate lifting hole 19, a lifting beam supporting plate reinforcing vertical plate 20 and a lifting beam supporting plate main lifting plate 21. And the primary and secondary lifting beam connecting seat 6 consists of a right trapezoid reinforcing plate 17, a primary and secondary lifting beam connecting seat bottom plate 22 and a connecting seat leveling plate 28.

The utility model provides a temperature measuring and sampling hole device for a water-cooled furnace cover. The temperature measuring and sampling hole device comprises a temperature measuring and sampling hole body, a fixed plate, a bottom plate, a supporting seat, a movable door and an air cylinder, the temperature measurement sampling hole body is of a right trapezoid box structure, and the right-angle waist end face and the inclined waist end face are not closed through a steel plate. The box body structure penetrates through and is welded and fixed in a mounting hole in the center of the fixed plate; the bottom plate is fixedly mounted below the fixing plate, and the supporting seat is arranged at one end of the bottom plate; the movable door is arranged above the inclined waist end face of the box body structure in an openable and closable mode. One end of the movable door is rotationally installed on a supporting column arranged on the fixing plate through a rotating shaft. A cylinder mounting seat is arranged on the movable door; the fixed end of the air cylinder is fixedly installed on the top of the supporting base, and the movable end of the air cylinder is rotationally installed on the air cylinder installation base through a pin shaft. According to the technical scheme, the problems that water leakage and steel flower splashing are prone to occurring in the temperature measurement sampling hole of the water-cooled furnace cover of an existing refining furnace are solved.

The invention belongs to the field of feeding for Chinese softshell turtle breeding, and particularly relates to a feeding device for Chinese softshell turtle breeding, which comprises a main body and an automatic feeding device, the automatic feeding device comprises a feeding hopper, the feeding hopper is located in the lifting device, the feeding hopper is a right trapezoid body with the top and the bottom being open, a quantity limiting device is arranged in the feeding hopper, a fixing table is fixedly arranged at the bottom of the feeding hopper, a threaded sleeve is fixedly arranged in the fixing table, and the threaded sleeve is fixedly connected with the lifting device. A threaded rod is in threaded connection with one side of the threaded sleeve, and a second servo motor is arranged at the end, away from the threaded sleeve, of the threaded rod in a transmission mode. A second servo motor in the automatic feeding device is started, the second servo motor rotates to drive a threaded rod to rotate, the threaded rod rotates to drive a threaded sleeve and a fixing table to move, the fixing table moves to drive a feeding hopper to move, and therefore the feeding hopper can stretch out and draw back to adapt to glass water tanks arranged in a trapezoid mode.

The invention discloses a pipe joint assembly, and belongs to the field of pipeline connection. The device comprises a buckle sleeve with the cross section in a right trapezoid shape, the size of the portion, close to the middle of a connecting pipe, of the cross section of the buckle sleeve is larger than that of the other side of the connecting pipe, and the buckle sleeve is attached to a plurality of contact rods rotationally arranged at the end of the connecting pipe. The distance between the ends, away from the connecting pipe, of the multiple contact rods can be increased, so that a to-be-connected pipeline within a certain caliber range can be fixed between the contact rods and the buckle sleeve, and the to-be-connected pipeline within a certain caliber atmosphere can be extruded and fixed among the multiple contact rods; the end of the connecting pipe has two different to-be-connected pipeline fixing modes, the connecting pipe can be used for connecting two to-be-connected pipelines with different calibers and can be fixed within the diameter of the buckle sleeve, the contact rod can be attached to pipelines with different calibers outside the diameter of the insertable pipeline, and when the connecting pipe is used, the adaptive range is wider, and the flexibility is higher.

The invention discloses a mounting structure of an automobile tail door motor, relates to the related field of motor mounting, and aims to solve the problem that a motor in the prior art is directly mounted in an outer sleeve and is inconvenient to maintain and replace independently. An isosceles trapezoid block is fixed at the upper end of the connecting column; side fixing seats are fixed to the rear end of the outer C-shaped fixing frame along the two sides of the isosceles trapezoid block, positioning fixing rods are slidably connected into the side fixing seats, right trapezoid blocks are fixed to the inner ends of the positioning fixing rods, and second pressure springs are arranged between the right trapezoid blocks and the side fixing seats along the outer portions of the positioning fixing rods. The telescopic assembly comprises a third rotating piece, the third rotating piece comprises two second cylindrical connecting parts and a second middle plate part integrally connected between the two second cylindrical connecting parts, and the front end of the second cylindrical connecting part at the front end is integrally connected with a rear fixing part. Limiting fixing holes matched with the positioning fixing rods in position are formed in the rear fixing part.

The utility model discloses a multifunctional good limb position placing pillow which comprises a lower limb pillow body with a second groove formed in the upper end face, an upper limb pillow body with the vertical section arranged in an inverted right trapezoid shape and a back pillow body with the vertical section arranged in a right trapezoid shape, and a first groove is formed in the long plane of the upper end of the upper limb pillow body. The inclined surface of the upper limb pillow and the inclined surface of the back pillow are mutually attached and stacked to form a combined pillow for placing the head of a patient or the healthy side lying position upper limbs, connecting assemblies are detachably connected between the two side surfaces of the right trapezoid of the upper limb pillow and the two side surfaces of the right trapezoid of the back pillow, and an arc-shaped groove is formed in the middle of the bottom plane of the back pillow; a waist and neck pillow is detachably connected to one side plane, far away from the inclined plane, of the upper limb pillow; one face of the waist and neck pillow is a plane, the other face of the waist and neck pillow is an arc-shaped convex face matched with the first groove, pressure sensors are embedded in the second groove, the inclined face of the back pillow and the first groove, and timers and alarms are embedded in one side face of the lower limb pillow, one side face of the upper limb pillow and one side face of the back pillow. And the whole body has the advantages of multiple functions, good body position treatment effect and high applicability.

The invention is applied to the technical field of water conservancy projects, and particularly discloses a water conservancy ecological wall which comprises a supporting wall, the supporting wall is of a cuboid structure, one side of the supporting wall is fixedly connected with a first slope, the side section of the first slope is in a right trapezoid shape, and second slopes are arranged on the surfaces of the two sides of the first slope correspondingly; the side section of the second slope is in a right trapezoid shape, and the rear surface of the second slope is fixedly connected with the surface of the supporting wall. According to the water conservancy ecological wall, the wall body of the ecological wall is composed of the supporting wall, the first slope and the second slope, the cuboid supporting wall serves as a main body support of the device, the stability of the ecological wall is guaranteed, and the trapezoidal first slope and the trapezoidal second slope are arranged on the surface of one side of the supporting wall and make contact with water drainage basins such as a river channel; the trapezoidal lower part is used for ensuring the stability of the device, the trapezoidal inclined surface reduces the impact force of water flow on the surface of the device, and the service life of the device is prolonged.

The utility model relates to a novel coal dry-method fluidization sorting machine. In order to improve the sorting effect, the novel coal dry-process fluidization sorting machine comprises a shell, a vibrating screen plate and an air guide plate, and the horizontal sections of the vibrating screen plate, the air guide plate and the shell are all in a right trapezoid shape. The air guide plate is divided into a first air guide area, a second air guide area, a third air guide area and a fourth air guide area from the rear bottom edge close to the rear side wall of the shell to the front bottom edge close to the front side wall of the shell, each air guide hole is a square hole, an air guide tongue plate is connected to one side of each square hole, the air guide tongue plate of the air guide hole in the first air guide area is perpendicular to the air guide plate, and the air guide tongue plate of the air guide hole in the second air guide area is perpendicular to the air guide plate. The air guide tongue plates in the second air guide area, the third air guide area and the fourth air guide area all point to the end, away from the air inlet, of the discharging port and can guide airflow blown from the air distribution chamber below the air guide tongue plates to the end, away from the air inlet, of the discharging port. The utility model has the advantages of simple structure and high separation effect, and is suitable for coal preparation plants in drought areas with less water.

The utility model relates to the technical field of flange machining, in particular to high-hardness flange heat treatment machining equipment which comprises a supporting table and a support fixedly installed on the supporting table, a reciprocating lead screw is rotatably installed on the support, a sliding block is in threaded connection with the reciprocating lead screw, a hydraulic cylinder is fixedly installed at the bottom of the sliding block, and the hydraulic cylinder is in threaded connection with the reciprocating lead screw. The driving end of the hydraulic cylinder is fixedly connected with a cross, and a supporting assembly is arranged on the supporting table. An extrusion block is connected to the cross frame through an electric push rod, two trapezoid openings with the cross sections arranged in a right trapezoid shape are formed in the extrusion block, two positioning assemblies are arranged on the cross frame, and each positioning assembly comprises a bent rod installed on the cross frame in a sliding mode. According to the flange blank cooling device, the cooling speed of flange blanks can be increased, the flange blanks with different hole diameters can be taken and placed conveniently, and flange machining is facilitated.

The present invention relates to the technical field of kitchen waste treatment, and more specifically, the present invention relates to a processing device for preparing organic fertilizer from kitchen waste. Technical problem: Existing equipment cannot fully cut small garbage bags. Technical solution: A number of first cutters are fixedly connected to the inner side of the cylinder; a number of second cutters are fixedly connected to the lower part of the inner side of the cylinder. During use, through the cooperation of six first cutters in the shape of right trapezoids, the large garbage bags and small garbage during falling are cut in sequence, avoiding the problem of incomplete separation caused by the inability of existing equipment to cut small garbage bags. Moreover, only the side position of the garbage bag is cut by the first cutter, so that the head and tail of the garbage bag are still connected together, and no garbage bag fragments will be generated, facilitating the separation of the garbage bag from the kitchen waste. By setting the second cutter, the problem of cutting failure caused by the small garbage bag falling into the gap between two adjacent first cutters and the cylinder is avoided.

The utility model provides a recyclable gift box which comprises a cuboid-shaped box body, an inner sleeve box is arranged in the box body, an outer sleeve box is sleeved outside the inner sleeve box, the outer sleeve box and the inner sleeve box are in a right trapezoid shape, and the outer sleeve box and the inner sleeve box are vertically placed to form a book stand structure which is suitable for placing paper materials. The gift box has multiple functions, can be used as a disposable package and can also be converted into a book stand or a storage tool, and secondary utilization of the package is achieved. And a buffer cushion (such as a sponge block) is also arranged in the box body, so that internal articles are effectively protected. The inner sleeve box and the outer sleeve box are connected through adhesion pieces or magnetic attraction pieces, disassembly and combination are convenient, and applicability and operation convenience are improved. The surface of the box body is coated with the environment-friendly coating which is made of recyclable materials, and the environment-friendly requirement is met. The gift box not only meets the packaging requirement, but also has a practical function, reduces resource waste, and is easy to recycle and reuse.

The utility model discloses a non-woven fabric drying oven, and relates to the technical field of drying ovens. The drying oven comprises a drying oven body, an exhaust port is formed in the upper side of the drying oven body, supports are arranged on the two opposite sides of the drying oven body, the supports are matched with two cover bodies in a sliding mode, the cover bodies are of a right trapezoid plate-shaped structure, sliding pieces corresponding to the cover bodies are arranged on the supports, the sliding pieces are matched with rectangular frames in a rotating mode, and the cover bodies are movably hung on the two rectangular frames. The upper end of the exhaust port of the drying oven body can be conveniently covered through the two cover bodies, the heat loss speed of the drying oven body can be conveniently controlled, the heat loss amount of the drying oven body can be conveniently controlled, and two sides of the space between the cover bodies and the drying oven body can be conveniently prevented through the two side plates. And the heat loss speed of the drying oven body can be further controlled conveniently, the heat loss amount of the drying oven body can be controlled conveniently, the drying degree is controlled, hot air loss is reduced, energy consumption is reduced, and the drying efficiency of the non-woven fabric is improved conveniently.

A high pressure syringe includes a syringe body and a plurality of assemblies. One end of the needle cylinder body is an injection end, and the other end is an assembly end. The multiple assembly bodies are fixed to the outer wall of the needle cylinder body at intervals in the circumferential direction of the needle cylinder body. The assembly body is a solid boss and is used for being detachably connected with the injection pump. The section of the assembly body in the axial direction of the needle cylinder body is a right trapezoid. And an inclined surface is arranged on the assembly body and is used for playing a guiding role when the high-pressure needle cylinder is mounted on the injection pump. According to the designed high-pressure needle cylinder, the assembly body is the solid boss, and the section of the assembly body in the axial direction of the needle cylinder body is in the shape of the right trapezoid, so that the designed assembly body has high bearing strength, and better structural stability is achieved when the assembly body is connected with an injection pump. The inclined planes on the assembly bodies and the gaps between the adjacent assembly bodies can play a role in guiding installation, so that the high-pressure needle cylinder is more convenient to install on the injection pump.

The utility model provides a stackable gardening box, which relates to the technical field of gardening equipment, and comprises a box body, the box body comprises a first side plate, a second side plate and a bottom plate, a clamping groove, a clamping buckle, an inner convex plate and an outer convex plate are adopted, and the dovetail-shaped clamping buckle is clamped with the clamping groove, so that free splicing of the left side and the right side of the gardening box can be realized; a user can flexibly adjust the combination mode according to the space shape, size and planting requirements, the space utilization rate is remarkably increased, through the complementary design of inverted trapezoids and regular trapezoids, when the box bodies are rotated by 180 degrees to be stacked, the outer protruding plate of the upper box body abuts against the inner protruding plate of the lower box body, vertical stacking of the two box bodies 1 is achieved, and the space utilization rate is remarkably increased. When the upper box body is vertically stacked, the outer protruding plate of the upper box body is embedded into the gap of the inner protruding plate of the lower box body, the upper box body and the lower box body are stacked and overlapped, when the upper box body rotates by 90 degrees, the upper box body and the two lower spliced box bodies can be stacked up and down, the stacking mode is diversified, and the requirement for diversified planting scenes is met.

The utility model belongs to the technical field of two-for-one twisters, and particularly discloses a two-for-one twister for acrylic yarn production, which comprises a case shell, a movable door and a driving motor, the main body of the cross section of the case shell is of a right trapezoid structure, the movable door is mounted on a sliding rail fixed at the lower end of the side wall of the case shell, a partition plate is arranged in the case shell, and the driving motor is connected with the partition plate. A rotating shaft is transversely arranged at the upper end of the doubling bin, a plurality of rotating rollers are evenly arranged on the peripheral wall of the rotating shaft at intervals, yarn storage barrels are correspondingly arranged at the lower ends of the rotating rollers, the yarn storage barrels are installed on the dust removal box, and the rotating shaft and the yarn storage barrels are arranged on the side close to the bevel edge of the machine shell box of the right trapezoid structure; a water conveying pipeline is fixedly installed on the side, close to the right-angle side, of the top end of the machine shell box, an atomization assembly is downwards arranged on the water conveying pipeline, one end of the water conveying pipeline is connected with a water storage tank, the water storage tank is arranged in an isolation bin, and a dust collector is further installed in the isolation bin and communicated with a dust removal box.

The utility model discloses a mold pitched roof structure, which belongs to the technical field of mold pitched roofs and comprises a mounting seat. The forming die is slidably connected to the outer wall of the mounting base, and a forming cavity is formed in the top of the forming die; the lifting assembly is arranged on the mounting seat; the lifter assembly and the height adjusting mechanism are arranged on the lifting assembly, and the lifting assembly comprises a hydraulic cylinder fixedly mounted at the bottom in a cavity of the mounting seat; the movable seat is arranged at the telescopic end of the hydraulic cylinder and is in a right trapezoid shape; the movable sliding block is slidably installed on the inclined face of the movable base, the inclined face of the movable base is in the state that the front portion is high and the rear portion is low, and a third limiting sliding groove and a third limiting plate are slidably connected into the third limiting sliding groove are formed in the top of the movable sliding block; the inclined rod is rotationally mounted on the outer wall of the third limiting plate. By arranging the height adjusting mechanism, the height of the movable seat can be adjusted under the condition that the stroke is not enough due to abrasion between the movable sliding block and the movable seat, use is convenient, unnecessary time waste is saved, and efficiency is improved.

The present application provides a kind of micro-resistance check valve, it is related to valve technical field, the micro-resistance check valve includes: valve body, annular port is provided in valve body;Mounting seat, one end rotates in annular port, the front view shape of mounting seat is right trapezoid, so that the part of mounting seat is always below under the action of gravity;Valve clack assembly, it is installed in the other end of mounting seat, so that the liquid medium in valve body can only flow in one direction;Therefore the height of gravity center is not big when valve clack opens, so the resistance that liquid medium flows is smaller, and because mounting seat can rotate around annular port, so the heavier part of mounting seat is always at the bottom, so that valve clack is always in the same direction, so when the angle of check valve changes, it will not affect check effect.

The utility model relates to the technical field of transformers, and discloses a matched oppositely-embedded copper bar piece for a dry-type transformer, which comprises a copper bar body and a fastener, the copper bar body comprises a leading-out part, a bending part and a welding part which are connected in sequence; the lead-out part is parallel to the welding part; the welding part is used for welding copper foil of the winding; the welding part comprises a rectangular section and a trapezoidal section; the trapezoidal section is a right trapezoid; one end of the rectangular section is connected with the bent part, the other end of the rectangular section is connected with one right-angle side of the trapezoidal section, and the other right-angle side of the trapezoidal section is flush with the rectangular section; the side length of one side, connected with the rectangular section, of the trapezoidal section is greater than that of one side, far away from the rectangular section, of the trapezoidal section, and the sum of the side length of one side, connected with the rectangular section, of the trapezoidal section and the side length of one side, far away from the rectangular section, of the trapezoidal section is equal to the length of the rectangular section; the fastener is used for connecting the two copper bar bodies located on the outer side and the inner side of the winding. According to the technical scheme provided by the utility model, the blanking can be saved, and the waste of copper bars during the production of copper foil windings is reduced.

The utility model relates to the technical field of bridge pier body construction equipment, and discloses a pier body protection layer detection tool. The pier body protection layer detection tool comprises a main detection plate and a handpiece. The main detection plate is of a right trapezoid structure; the upper side surface of the main detection plate is an upper bottom edge of the trapezoidal structure, the lower side surface of the main detection plate is a lower bottom edge of the trapezoidal structure, and the upper bottom edge is longer than the lower bottom edge; the left side surface of the main detection plate is a right-angle side of the trapezoidal structure, and the right side surface of the main detection plate is an inclined side of the trapezoidal structure; a plurality of main scale marks are arranged on the front side surface or / and the rear side surface of the main detection plate, are parallel to the upper bottom edge, and are arranged at intervals in the vertical direction. The handheld piece comprises a connecting part and a handheld part; the handheld part is formed at the right end of the connecting part; the connecting part is connected with the upper side surface of the main detection plate. The utility model solves the problems that the operation is not changed and the measurement workload is large when the thickness of the pier body protection layer is measured by using a steel tape in the prior art.

A high-short-circuit protection design device relates to the technical field of semiconductors. Comprising a Sub layer; the top corner of the Drift layer is provided with a pair of etching parts which are of a right trapezoid structure, and the two sides of the top of the Drift layer form an inclined plane; a pair of P-body regions are arranged and extend inwards from the outer side surface of the top of the Drift layer; the NP region extends downwards from the top surface of the P-body region; the PP area extends inwards from the side surface of the P-body area; the PP region is connected with the NP region; the gate oxide layer is arranged on the top surfaces of the Drift layer, the P-body region and the NP region; the Poly layer is arranged on the top surface of the gate oxide layer; when the device works in a saturation region, a deeper P-type junction and a depletion layer generated by a Drift layer can block current, so that the short-circuit endurance capability of the device is improved.

The utility model discloses a layering and shunting device for living fish fries. The layering and shunting device comprises a fish storage box, a cover plate, a step baffle, a flow guide plate and a limiting assembly, the cross section of the fish storage box in the length direction is in a right trapezoid shape, the front side of the fish storage box is a vertical side wall, the rear side of the fish storage box is an inclined side wall, a fish discharging opening is formed in the middle of the vertical side wall, and sliding grooves are formed in the two sides of the fish discharging opening. The cover plate is arranged on the upper portion of the fish storage box, and a fish inlet is formed in the middle of the cover plate. The step baffle is vertically arranged in the sliding groove in a sliding mode, and a transition step is arranged on the lower portion of the step baffle; the flow guide plate is arranged at the lower part of the fish discharging opening, is fixedly connected with the vertical side wall and is arranged obliquely downwards; the two sides of the step baffle in the length direction are each provided with a limiting assembly, the limiting assemblies are fixedly connected with the cover plate, and limiting racks matched with the limiting assemblies are arranged on the step baffle. By flexibly adjusting the size of the stepped fish valve channel, fish fries can pass through a single layer, and overlapping of the fish fries is avoided.

The utility model discloses a container yard identification device with an adjustable support, and relates to the technical field of container yard identification. The device comprises a base, right trapezoid columns are fixedly matched with the upper sides of the corners of the base, threaded rods are rotationally matched with one sides of the right trapezoid columns, T-shaped blocks are in threaded fit with the peripheral sides of the threaded rods, L-shaped rods are rotationally matched with one sides of the T-shaped blocks, and first code readers are fixedly matched with one ends of the L-shaped rods; and the top plate is fixedly matched with the upper end part of the right trapezoid column. According to the utility model, through the arrangement of the first code reader, the first code reader rotates under the action of the L-shaped rod, and the bar code on one side of the container on the upper side of the base is scanned through the rotating first code reader, so that the container identification process is more convenient, and the container information is absolutely controlled; and the problems of unqualified containers are reduced.