55 results about "Right trapezoid" patented technology

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 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 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 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 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 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.

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.

The utility model relates to the technical field of constructional engineering, and aims to solve the technical problems that in a large-span frame structure and a cantilever structure, the fixed position of a guide rail of an attached lifting scaffold is unstable, the attachment interval of the guide rail cannot meet the construction requirement, and the follow-up maintenance cost is high. The utility model discloses an attached type lifting scaffold guide rail fixing suite which is provided with a guide seat heightening piece, a round pipe outrigger and a bolt lock, the guide seat heightening piece is of a right trapezoid cage-shaped structure and comprises a top frame and a bottom frame, and a bearing steel plate is welded to the top frame. And the top frame and the bottom frame are fixedly connected through a vertical square pipe, a first inclined steel pipe and a second inclined steel pipe. The attached type lifting scaffold guide rail can be fixed on the inner side structure of the suspension structure, the external member is fixed through bolts, the relative position is adjustable, the extension length of the round pipe cantilever beam is adjusted, the concrete pre-burying construction procedure is reduced, meanwhile, mounting and dismounting are convenient, repeated turnover use can be achieved, and the subsequent maintenance cost is reduced.

The utility model relates to the technical field of well lids, in particular to an anti-theft well lid which comprises a lid body and a well base, a plurality of clamping grooves are formed in the inner wall of an annular groove of the well base, a plurality of installation grooves with the longitudinal sections being in a right trapezoid shape are formed in the circumference of the side face of the lid body at equal intervals, and isosceles triangle blocks are installed in the installation grooves in a sliding mode through sliding assemblies. Locking blocks are fixedly mounted on the upper surfaces of the isosceles triangle blocks, the isosceles triangle blocks and the locking blocks are inserted into the clamping grooves, an annular cavity is formed in the cover body, and rectangular holes communicating with the annular cavity are formed in the inner walls of the multiple mounting grooves; the annular cavity is internally provided with an unlocking assembly used for driving the multiple isosceles triangle blocks to move towards the interior of the mounting groove. When the cover body is taken down from the well seat, the upper end of the locking block is in contact with the top of the clamping groove, so that the cover body is limited to move upwards, the cover body cannot be detached from the well seat, the anti-theft effect is achieved, the well cover is prevented from being stolen, and accidents are effectively reduced.

The utility model discloses a yarn bobbin fixing buckle structure of a wrap yarn machine, which comprises a pipe body, the left side and the right side of the pipe body are respectively closed, round blocks are connected to the left side and the right side of the pipe body in a penetrating manner, a rotating rod is sleeved in the pipe body, a through hole matched with the rotating rod is formed in each round block, and the through hole is communicated with the rotating rod. The left end and the right end of the rotating rod penetrate through the penetrating holes respectively and extend out of the pipe body, round pipes are arranged on the left side and the right side of the pipe body respectively, the rotating rod is sleeved with the round pipes through bearings, and the positions, close to the left side and the right side, of the rotating rod are sleeved with oval rings respectively. According to the technical scheme, through mutual cooperation of a rotating rod, an oval ring, a right trapezoid block, a second contact wheel and other components, the device can be effectively extended, so that the device can adapt to fixation of bobbins with different hole diameters, the application range and the use efficiency of the device are improved, the right side of an inserting rod can be driven to move while extension is conducted, and the practicability is high. Therefore, the multi-directional clamping can be realized, and the stability is improved.

The utility model provides safety protection equipment for water drilling operation, and relates to the technical field of drilling operation. Comprising a supporting frame, a first protective shell and a second protective shell, a bearing is arranged on the upper surface of a protective plate, a mud scraping plate is arranged on the inner side of a first gear ring, the mud scraping plate is in a right trapezoid rod shape, and a first gear is arranged at the output end of a first motor. The protection plate can be used for blocking broken stones and soil splashed in the drilling process, the broken stones and the soil splashed all around are prevented from entering a motor bearing or a sealing part, mechanical abrasion is accelerated, the mud scraping plate is designed to be in a right trapezoid shape, the attaching angle between the mud scraping plate and the protection plate is 75 degrees, and part of sludge attached to the small surface of the protection plate is effectively scraped when the mud scraping plate rotates; a first gear at the output end of a first motor at the top end of a mounting frame is in meshed connection with a first gear ring, operation of the first motor can make a scraper rotate at a constant speed, and it is prevented that sludge on the lower surface of the scraper is accumulated, and normal use of the protection plate is affected.

The utility model relates to the technical field of logistics management, and discloses an intelligent logistics cargo fixing device which comprises a main supporting plate, a clamping structure is arranged on the upper surface of the main supporting plate, a movable clamping plate is connected to the surface of the clamping structure in a threaded mode, a movable groove is formed in the surface of the movable clamping plate, and the movable clamping plate is connected with the main supporting plate in a threaded mode. And a movable rod is movably connected into the movable groove. The clamping structure is roughly adjusted, then the round blocks are sequentially pushed towards the rear end, the shapes of the round blocks accord with the pushing of a palm, so that the movable rod slides in the movable groove, the clamping groove is shaped like a right trapezoid, and the inclined clamping block is also shaped like a right trapezoid matched with the clamping groove. By means of the device, the problem that due to the fact that the sizes of the logistics goods are different, the small logistics goods cannot be fixed in the fixing process, and consequently the logistics goods shake in the transportation process is solved.

The utility model discloses a kind of communication electronic components positioning fixture, it is related to electronic component detection technical field.The utility model includes: rectangular seat, its one side structure has installation groove, the installation groove is right trapezoid, and its bottom is inclined surface, the top middle of mounting block is equipped with conical hole with equal interval, the conical hole is connected with installation groove, the rectangular seat front side bottom side is inclined to the upward structure with rectangular channel, the rectangular channel is connected with installation groove;Mounting block, it is right trapezoid, and slidingly embedded in the inside of installation groove.The utility model creatively uses the positioning structure that a variety of diameter specifications circular component can be adapted by conical hole and conical groove combination, this kind of innovative design breaks through fixed size limit, different diameter circular electronic component can be realized fast, accurate positioning on the same fixture, greatly improve the versatility and application range of fixture.

The utility model relates to the technical field of protein powder processing, in particular to a hydrolyzed collagen, Chinese date and Chinese angelica collagen powder crushing device which comprises a crushing device body, and a first crushing cavity, an anti-accumulation mechanism, a second crushing cavity and a grinding mechanism are vertically arranged in an inner cavity of the crushing device body from top to bottom in sequence; the anti-accumulation mechanism comprises a worm, the two horizontal sides of the worm are fixed to the side wall of an inner cavity of the crushing device body through bearings, a pushing plate is fixed to the outer wall of the worm, and a meshing area is arranged in the middle of the worm; an auxiliary crushing cutter is arranged on the side wall of the second crushing cavity; the grinding mechanism comprises two sets of grinding protruding blocks located on the side walls of the two sides of the inner cavity of the crushing device body, the grinding protruding blocks are in a right trapezoid shape, and the grinding mechanism further comprises a set of grinding discs matched with the grinding protruding blocks for operation. The protein powder crushing device is efficient in grinding, fine in powder and capable of meeting the current production requirement.

The utility model discloses a quick release device for a battery pack of a new energy automobile. The quick release device comprises a battery pack body and a fixing frame, the fixing frame comprises a transverse fixing rod and a longitudinal slide way, quick-release flanges on two sides of the battery pack are provided with mounting holes, wedge-shaped buckles are rotatably mounted on the longitudinal slide way through a rotating shaft, the buckles are in a right trapezoid shape, guide slopes of the buckles face the insertion direction, and locking edges of the buckles are matched with the mounting holes. The rotating shaft is connected with a fixing frame through a crank and a sliding rod, the fixing frame is arranged on pull rods, and the pull rods are in linkage through connecting rods. When the battery pack is inserted, the guide inclined surface pushes the buckle to avoid, and the reset spring drives the buckle to be clamped into the mounting hole with the gradually-changed width to be locked after the buckle is in place; when the connecting rod is pulled, the buckle is rotated and unlocked through the linkage mechanism. According to the device, automatic guiding and accurate locking are achieved through a wedge-shaped structure, the dismounting and mounting efficiency is improved through a linkage pull rod, the vibration resistance is enhanced through mirror symmetry buckles, the device is suitable for rapid replacement of new energy automobile batteries, and the problem that in the prior art, buckle operation is tedious is solved.

The utility model relates to the technical field of slope protection devices, in particular to a collapse-preventing piled slope protection device which comprises a slope protection block, the front side and the rear side of the slope protection block are both of an inclined face structure, an inserting groove is obliquely formed in the middle of the top of the slope protection block, and an inserting block matched with the inserting groove in shape and size is arranged in the middle of the bottom of the slope protection block. The front side of the slope protection block is provided with two rectangular through grooves which are distributed in a bilateral symmetry mode, the front side of the slope protection block is provided with a right trapezoid baffle, and the position, close to the bottom, of the front side of the right trapezoid baffle is upwards obliquely provided with a plurality of drainage holes which are distributed at equal intervals in the left-right direction. According to the stacking type slope protection device capable of preventing collapse, through the inserting structure formed by vertically stacking the slope protection blocks, the pressure of the slope surface is effectively dispersed, the toppling risk caused by bottom pressure concentration of a traditional stacking columnar structure is avoided, the overall stability of the slope protection device is remarkably improved, and soil loss and rolling objects can be blocked through the vertical plane design of the right trapezoid baffles.

The invention relates to the field of T-shaped crossed metro transfer channels, and discloses a T-shaped crossed metro transfer channel, which comprises an upper platform and a lower platform with vertical center lines, and a lower interval tunnel is arranged on each of the two sides of the lower platform, and is characterized by further comprising a transfer channel, and the transfer channel comprises a lower digging section and a horizontal section which are vertical to each other; the bottoms of the horizontal sections are higher than the bottoms of the lower-layer interval tunnels and are located between the two lower-layer interval tunnels; the longitudinal section of the downward-digging channel is a right trapezoid, the bottom edge of the right trapezoid is shorter than the top edge, and the horizontal section of the right trapezoid is communicated with the bottom of the downward-digging channel and the lower-layer platform. The construction influence on the platform layer and the adjacent interval tunnel structure is reduced to the maximum extent, and the safety and stability of the whole structure are guaranteed.

The present application relates to a kind of cutting methods of truck carriage side wall, the workpiece to be cut on side wall is divided into left trapezoidal plate, middle trapezoidal plate, right trapezoidal plate, left C-shaped plate, right C-shaped plate, and the scanning and slit identification algorithm matched with each kind of plate piece is set;First, by control system control multiple robots move to carriage to be cut position by guide rail;Then start 3D laser sensor along slit continuous scanning;3D point cloud data of workpiece to be cut is generated after scanning, and control system calculates the cutting trajectory position from 3D point cloud data by slit identification algorithm;Control system controls the movement of plasma cutting torch on robot by cutting trajectory information, to cut.The cutting method disclosed in the present application can automatically cut the carriage side wall plate, the cutting quality is good, the work efficiency is greatly improved, and the economic benefit of enterprise is improved.

The utility model discloses a bolt machining clamp, and relates to the technical field of clamps. A cavity is fixedly connected to the top face of the base, a notch is formed in the side wall of the cavity in a penetrating mode, a movable plate is connected into the notch in a sliding mode, a motor is arranged in the cavity, a double-thread screw is fixedly connected to the output shaft end of the motor, and a threaded sleeve is connected to the side wall of the double-thread screw in a threaded mode. One end of the movable plate is fixedly connected with the outer side wall of the threaded sleeve, the other end of the movable plate is fixedly connected with a connecting seat, the side wall of the connecting seat is fixedly connected with a lengthened plate, the side wall of the lengthened plate is provided with a special-shaped groove, a convex block is slidably connected in the special-shaped groove, the end face of the convex block is fixedly connected with a clamping block, and the cross section of the clamping block is a right trapezoid; the clamping device is stable in clamping, capable of effectively avoiding the situation that the machining quality is affected due to the fact that bolts deflect in the machining process, good in applicability and convenient to clamp and fix the bolts of different sizes.

The utility model provides a breast cancer postoperative upper limb rehabilitation multifunctional supporting pad which comprises a supporting pad body, the cross section of the supporting pad body is a right trapezoid, the plane where the bevel edge of the right trapezoid is located is the upper surface of the supporting pad body, and the upper bottom edge of the right trapezoid is one edge of the supporting pad body. And the lower bottom edge of the right trapezoid is the other one of the supporting pad main bodies. When the upper limbs of a breast cancer patient need to be subjected to rehabilitation training after an operation, the device is used, firstly, the supporting pad body is placed on one side of the upper limbs needing to be trained, the back pad is installed on the side, facing the body of the patient, of the shoulder pad, and the using state is formed; the combined arrangement of the hand exercise assembly and the supporting pad main body can help a patient to perform targeted rehabilitation exercise while using the supporting pad, meanwhile, the supporting pad main body can be combined according to different upper limbs of different patients so as to meet the use requirements of different patients, the design of the shoulder pad and the back pad improves the use comfort of the patient, and the use safety of the patient is improved. The use is convenient.

The utility model relates to an automatic feeding, positioning and welding all-in-one machine for a multi-specification inner insert pocket of a PP foaming folder, which comprises a machine table, a feeding station is arranged on one side of the machine table, and a welding station is arranged on the other side of the machine table; the feeding station is provided with a feeding platform, the feeding platform is driven by a lifting driving mechanism to ascend and descend, the feeding platform is provided with a material disc matched with the right trapezoid or the quarter circle, and the right trapezoid or the quarter circle is placed on the material disc in a stacked mode; a welding mechanism is arranged on the other side of the machine table; a transverse moving guide rail located between the feeding station and the welding station is arranged above the machine table, a feeding mechanical arm is connected to the transverse moving guide rail in a sliding mode, and the feeding mechanical arm is driven by a transverse moving driving mechanism to move along the transverse moving guide rail. And the feeding manipulator takes away one right trapezoid or one quarter circle on the feeding platform and transfers and positions the right trapezoid or one quarter circle on the PP foaming folder at the L-shaped positioning block. The manipulator is used for replacing manual feeding and positioning of a right trapezoid or a quarter circle, so that production efficiency is greatly improved, and production safety is improved.

The utility model discloses a sliding door and window capable of draining water quickly, which relates to the technical field of sliding doors and windows and comprises a window frame, sliding rails are fixedly connected to the inner walls of the two sides of the window frame, a mounting frame is arranged in the window frame, sliding grooves are formed in the upper side and the lower side of the mounting frame, and the sliding grooves are matched with the sliding rails. A glass plate is arranged in the mounting frame, a drainage groove is formed in the bottom of the window frame, the cross section of the drainage groove is in a right trapezoid shape, rectangular grooves distributed at equal intervals are formed in the inner wall of the bottom of the window frame, the rectangular grooves communicate with the drainage groove, and a rotating groove is formed in the drainage groove; and a rotating column is rotationally connected into the rotating groove. Rainwater deposited in the window frame can be quickly discharged, so that the situation that rainwater permeates into the inner sides of doors and windows to cause indoor humidity or the situation that rainwater is accumulated for a long time to cause corrosion or peculiar smell in the doors and windows is avoided.

The efficient spheroidizing ladle comprises a hanging frame and a molten iron bucket, the hanging frame is arranged in a door frame shape and used for integrally supporting equipment, trunnions are symmetrically arranged on the two sides of the molten iron bucket, the trunnions are connected with the lower end of the hanging frame, the trunnions are rotationally connected with the lower end of the hanging frame, and support is provided for dumping of the molten iron bucket; a water retaining dam is arranged in the lower end of the molten iron bucket, an alloy pool is arranged in the lower end of the molten iron bucket and used for containing a spheroidizing agent, a nucleating agent and a covering agent, the alloy pool is arranged on one side of the water retaining dam, the cross section of the water retaining dam is arranged in a right trapezoid shape, and the inclined waist of the water retaining dam is connected with the alloy pool to slow down the impact speed of molten iron flowing into the alloy pool. And the alloying agent is prevented from being dispersed. The invention belongs to the technical field of metallurgical casting equipment, and particularly provides an efficient spheroidizing ladle which achieves sequential contact between alloy and molten iron through structural optimization and strengthens the overall sealing performance so as to improve the spheroidizing absorption rate and reduce oxidation and temperature drop.

The utility model relates to a novel special ruler for escalator inspection, which comprises a thickness gauge and a ruler body, a measuring rod is arranged on the thickness gauge, the measuring rod moves on the thickness gauge, and the moving distance of the measuring rod is displayed through the thickness gauge; one end of the ruler body is fixed with the thickness gauge, and a right trapezoid ruler is arranged on the side edge of the other end; the right-angled trapezoidal ruler is flush with the end part of the ruler body; one surface of the right-angled trapezoidal ruler, which faces the thickness gauge, is an inclined surface; a measuring rod through hole and a moving rod hole are formed in the ruler body, the length direction of the moving rod hole is parallel to the inclined plane of the right trapezoid ruler, and the moving rod hole penetrates through the two sides of the ruler body in the width direction; one end opening of the measuring rod through hole is located at one end where the ruler body is fixedly connected with the thickness gauge, and the other end opening is communicated with the moving rod hole; a moving block is also arranged; the moving block comprises a moving rod and a moving seat; and a triangular chute is formed in one side, in contact with the measuring rod, of the moving rod. According to the utility model, the measuring error is small, the measurement is stable, and the market application and popularization value is great.

The utility model discloses a kind of high-pressure-resistant polyether ether ketone sealing parts, it is related to sealing part technical field, including injection molding part, its section is quadrilateral, one side of the quadrilateral is arc concave part, and the arc concave part both ends to the junction of quadrilateral adjacent two sides is blade type angle side;The side of quadrilateral adjacent the arc concave part is inclined plane, to make the rectangle be right trapezoid;Rectangular groove with section is set on one side of the quadrilateral and the arc concave part opposite, the recess of quadrilateral groove is set on one side of the quadrilateral and the arc concave part opposite.The utility model is designed by unique arc concave part, blade type angle side and inclined plane structure, in combination with the excellent performance of PEEK material, effectively solve the leakage problem caused by friction heat hardening and oil pressure impact of traditional sealing part, with high-pressure-resistant, high-temperature-resistant, low friction and long life etc.

The utility model relates to a kind of ear sound screening instrument base of wireless charging, including charging base, charging base overall is right trapezoid, the rear side of charging base is equipped with power cord, the front side inclined surface of charging base is equipped with recess, recess is compatible with ear sound screening instrument, trigger switch is equipped in recess, the position of trigger switch in charging base is equipped with inductive coil for the ear sound screening instrument wireless charging, inductive coil is connected in series with trigger switch and is electrically connected with power cord;Recess is additionally equipped with socket corresponding to the bottom of ear sound screening instrument, signal transmitter is equipped in charging base, signal transmitter is connected to power cord in parallel;Ear sound screening instrument can be electrically connected with signal transmitter by socket, so that the signal receiver of earphone can be wirelessly connected with signal transmitter.The utility model can optimize ear sound screening instrument to realize wireless charging function, and wired connection of earphone can be converted to wireless connection by charging base during charging, continue to use conveniently ear sound screening detection.