51 results about "Circular cavity" patented technology

The utility model discloses a self-adaptive clamping and positioning device for a wafer expanding ring. The self-adaptive clamping and positioning device comprises a positioning and clamping seat, a bearing part and a floating pressing strip, the bearing part is fixed at the bottom of the positioning and clamping seat and is used for supporting the wafer expanding ring; the top of the positioning clamping seat is provided with a semi-annular structure matched with the wafer expanding ring. The floating pressing strip is of a semi-annular structure matched with the wafer expanding ring and is detachably installed on the positioning clamping base through a front face clamping structure and a side face clamping structure. When the floating pressing strip is installed in place, a circular cavity for placing the wafer expanding ring can be formed between the floating pressing strip and the positioning clamping seat. The wafer expanding ring positioning and clamping device conveniently and reliably solves the positioning and clamping problems of the wafer expanding ring, effectively assists production in the fields of micro electronic elements, semiconductor chips and the like, can be suitable for most of wafer expanding rings, and is wide in application range and small in limitation.

This invention discloses a dripper and drip irrigation system for drip irrigation, including a dripper body and an adjusting shaft. The dripper body contains a circular cavity with an inlet at its front end and an opening at its rear end. The adjusting shaft passes through the opening and is placed within the cavity. A locking structure is provided between the cavity and the adjusting shaft, which engages the adjusting shaft, allowing it to rotate around a plane perpendicular to its own axis. The hollow cavity inside the inlet is cylindrical, and the axis of the cylindrical cavity coincides with the axis of the adjusting shaft. Because the shaft rotates vertically and does not move back and forth, the overlapping area of ​​the first and second grooves gradually increases with the rotation of the adjusting shaft, achieving fine adjustment of the water flow. This solves the problem of excessive adjustment range in existing drippers using a threaded method.

This invention relates to the field of integrated circuit manufacturing, specifically disclosing a semiconductor photoelectric level sensor, its fabrication method, and its application. The sensor is a sheet-like structure comprising: a substrate including multiple photodiodes evenly distributed on a ring with a first circular axis perpendicular to the substrate as its axis of symmetry; a circular cavity located on the substrate, perpendicularly corresponding to the ring formed by the multiple photodiodes, and containing a rollable microgravity sphere; and a first signal light guide located on the circular cavity, also circular in shape and perpendicularly corresponding to the cavity, for vertically guiding actively irradiated circular signal light into the cavity. This invention utilizes the lowest point of the circular cavity where the rollable microgravity sphere can freely roll under gravity, and simultaneously guides actively irradiated circular signal light vertically into the cavity, with the multiple photodiodes accurately sensing the precise angular position of the rollable microgravity sphere.

This invention discloses a roller mold and the semi-circular concave roller prepared therefrom, comprising a first mold and a second mold. The first mold has a front protrusion at the center of its front end, and the second mold has a semi-circular cavity at the center of its front end. When the first mold and the second mold are used together, the front protrusion protrudes into the semi-circular cavity, thereby forming a semi-circular concave space in the center of the combined first mold and the second mold. The first mold is divided into a first male mold and a first female mold. The front protrusion of the first male mold has secondary cavities on both sides, and the front protrusion of the first female mold has secondary protrusions on both sides, the secondary protrusions matching the secondary cavities. The semi-circular concave roller prepared by the above mold and the circular hollow roller formed by combining them can better meet different working conditions.

This utility model relates to the field of air compressor technology, and particularly to a ring compressor. A rotating wheel is coaxially arranged inside a circular cavity. The rotating wheel and the circular cavity are coaxially arranged. An annular channel is formed between the outer wall of the rotating wheel and the inner wall of the circular cavity. A piston block for sealing the cross-section of the annular channel is provided on the rotating wheel. A groove is provided on the side wall of the circular cavity. A valve body for sealing the cross-section of the annular channel is arranged in the groove. An exhaust port is provided in the inner cavity of the circular cavity directly opposite the rotating wheel. A vent hole is provided on the rotating wheel. The exhaust port and the outlet of the valve body are misaligned. When using this utility model, air compression and the next air intake are completed simultaneously, enhancing the continuity of air compression in the ring compressor, reducing equipment energy consumption, and making air compression more efficient.

This invention relates to the field of edible oil preparation technology, specifically to a processing apparatus for high-quality, fragrant pressed peanut oil. It includes a purification chamber with a top cover fixedly connected to its top. The purification chamber comprises a semi-circular cavity and a rectangular cavity. The rectangular cavity is used to generate centrifugal force by rotating the peanut oil. A movable separating plate for separating oil and impurities is slidably connected within the rectangular cavity. A scraper is slidably connected up and down on the side of the movable separating plate near the semi-circular cavity. After the rising scraper removes the gum material inside the movable separating plate, the gum material remains on the top inclined surface of the scraper. When the scraper rises to contact a limiting block, the bottom inclined surface of the limiting block slides against the top inclined surface of the scraper. As the scraper continues to rise, it drives the limiting block to slide towards the side near the semi-circular cavity, thereby preventing the scraper from slipping off the top of the movable separating plate. The bottom inclined surface of the limiting block scrapes away the gum material remaining on the top inclined surface of the scraper, preventing it from continuing to remain near the movable separating plate.

This invention relates to a circulating wet pulverizer, comprising a circular cavity and a central rotating shaft. The circular cavity is characterized by the following components arranged sequentially along its central axis: a hopper, a screw feeder, a water distribution ring, a guide shearing plate, shearing blades, a cutter disc, and a filter screen. A top cover plate is connected to the top of the circular cavity, and an inner ring is provided inside the top cover plate. Multiple guide vanes are provided on the inner ring. A cutter disc conical ring is located near the outer edge of the cutter disc. This conical ring can change the direction of material splashed by centrifugal force, causing the material to move obliquely upwards along the tangent of the conical ring's inclined wall and collide with the inner wall of the inner ring. Material with higher kinetic energy is guided by the arc-shaped structure of the guide vanes, changing its direction of motion, and falls back onto the cutter disc for collision and cutting. Material with lower kinetic energy slides down the inner wall of the inner ring to the filter screen below for sieving and filtration. This process is repeated multiple times to form a circulating pulverizer.

This utility model relates to the field of feed processing technology, specifically a feed raw material screening and impurity removal device, including a machine body. A circular cavity is provided in the middle of the machine body, and a top frame is fixedly installed on the top of the circular cavity. A feeding component is provided on the top frame, and a feed hopper is installed at one end of the top of the top frame. A metal adsorption component is provided on one side of the top of the top frame. A fixed cylinder is fixed in the middle of the bottom of the circular cavity, and mounting holes are opened in the middle of the fixed cylinder and the middle of the bottom of the machine body. A rotating shaft is rotatably connected to the inner wall of the mounting hole through a bearing. This utility model can combine mechanical crushing, air screening, and magnetic adsorption triple impurity removal mechanism, which can effectively remove various impurities such as metal, straw, and dust, improve the purity of feed raw materials, and is suitable for screening various feed raw materials such as soybeans and corn. It has a good crushing and separation effect on agglomerated raw materials, meeting the needs of modern feed production.

The present application belongs to the technical field of straw recycling, and is especially a straw briquetting forming device facilitating discharging, comprising a workbench, a loading mechanism being rotatably connected to the workbench, the loading mechanism comprising: a rotating shaft being rotatably connected to the workbench through a bearing; a rotating disc being coaxially fixedly connected to the upper portion of the rotating shaft, and the rotating disc being provided with three circular cavities distributed in an array along the circumferential direction, and each of the three circular cavities being fixedly connected with a forming cylinder, and the lower end of the forming cylinder being in contact with the upper surface of the workbench. The present application is provided with a workbench, a rotating driving part, a loading mechanism, a push plate and a discharging cavity, and through the matching structure, automatic discharging after straw briquetting is realized, and the briquetting forming and discharging of straw can be continuously and uninterruptedly realized, which is high in efficiency and solves the technical problems of the prior art, such as inconvenient discharging, and inability to continuously and uninterruptedly process.

The application relates to the technical field of robots, and discloses a caisson narrow space operation robot device and a precise positioning construction method. The device main body is a circular shell with a circular cavity. A single power driving assembly is arranged in the circular cavity. A rotating disc is driven by a servo motor. Six T-shaped blocks are driven by an arc-shaped groove and a protrusion to realize alternate stable support of support legs and the inner wall of the caisson. The support legs are integrated with a three-degree-of-freedom adjusting mechanism, which is suitable for different inner diameters and irregular well walls. A linkage dustproof structure and an emergency anti-falling assembly are matched to complete precise positioning operation by a closed-loop construction method. The application improves the stability and adaptability of the caisson operation device, reduces the equipment failure rate, does not need manual intervention in the well, greatly improves the construction safety and operation efficiency, and solves the problems of poor support stability, insufficient inner diameter adaptability, weak dustproof protection, easy occurrence of downward shaking deviation and support failure of the existing caisson operation device.

The application discloses a device and a control method for cooling high-temperature hot sand and cast scrap iron, and relates to cooling equipment. The device comprises a box body, a box cover covering the box body, two circular chambers with local overlap arranged in the box body, air inlets and air outlets respectively arranged on two sides of the box body and communicated with the circular chambers, a rotating shaft rotatably arranged in each of the circular chambers, at least two symmetrical distributing plates fixed on the rotating shaft, a long slot penetrating through the distributing plate and arranged in the distributing plate, a scraping end arranged at the lower part of the distributing plate and contacted with the circular chamber, and a throwing piece arranged at the end of the distributing plate. A cooling liquid tank is arranged below the box body and communicated with a liquid storage tank through a circulating pipeline. The application solves the problem of uneven material cooling and realizes the purpose of faster material cooling treatment.

The utility model relates to camera installation technical field especially relates to a kind of integrated camera quick installation mechanism, including mounting seat and connecting seat, mounting seat surface is fixedly installed with mounting plate, the top of mounting plate is equipped with the socket, the socket mouth wall is equipped with internal thread, the top of connecting seat is equipped with external thread in side wall;The top of connecting seat is equipped with circular cavity, the top of connecting seat is equipped with circular mouth with circular cavity intercommunication, the socket is fixedly installed with sliding plate inside horizontally, the symmetric sliding of the sliding plate is equipped with clamping block, the socket top is equipped with pressure assembly. By mounting plate socket internal thread and connecting seat top external thread cooperation, realize preliminary fast butt joint, spare each screw bolt step, simplify installation, while pressure assembly drives clamping block and forms second heavy mechanical locking to be inserted into connecting seat circular cavity, in combination with the self-locking characteristics of thread, can avoid loosening and falling off due to vibration, temperature change etc. in long-term use.

This invention belongs to the field of rebar mesh leveling technology, specifically a rebar mesh leveling device for bridge deck paving; it includes a fixing base; a locking anti-movement unit is provided at the bottom of the fixing base; the locking anti-movement unit includes a circular cavity disposed within the fixing base; a pressure leveling component is provided at the top of the fixing base; the pressure leveling component includes a rotating groove disposed at the top of the fixing base; a rotating block is fitted and connected within the rotating groove, and the two rotate in coordination; the centers of the rotating block and the rotating groove are coaxial; a displacement screw is installed at the top of the rotating block; a relative clamping control device includes a fixing platform installed at the top of the displacement triangular block; the device can fix the rebar mesh on the device for leveling operations without welding, and the process can be completed without the aid of tools, reducing the cumbersomeness of the device operation; at the same time, the device can be reused multiple times, and the fixing connection strength of the rebar mesh is guaranteed each time it is used, improving the leveling effect of the device on the rebar mesh.

The application relates to the technical field of shoe detection, and discloses a shoe sole durability detection device for shoemaking, which comprises a base, a stand column and a cross beam, the bottom of the stand column is connected with the top of the base, the cross beam is connected to the right outer wall of the stand column, and the top of the base is provided with a placing table; the connecting rod, the rope No.1, the round rod No.1, the movable rod No.1, the piston No.1, the spring No.1, the rope No.2 and the circular tube are arranged, the shoe sole can be placed, the electric push rod is started to apply stable pressure to the shoe sole for durability detection, the piston No.1 moves upwards, the air in the cavity enters the circular cavity through the circular tube and the strip-shaped hole, the air circulation area is increased, the pressure inside the cavity is smaller than the pressure outside the shoe sole, the shoe sole is pressed on the upper surface of the placing table by the pressure difference, the shoe sole is stably placed, the detection stability is improved, and the detection error caused by deviation during detection is avoided.

The utility model discloses a drilling blowout preventer, including slag water gas interface cover, slag water gas drainage cover, water and slag container, slag water gas drainage pipe and high negative pressure pipe, slag water gas interface cover is used for covering the orifice of drilling, and the guide rail between slag water gas interface cover and drilling machine is connected to slag water gas drainage cover, and the drill rod of drilling machine drills into the drilling after passing through slag water gas drainage cover and slag water gas interface cover in proper order, and the end of slag water gas drainage cover close to drilling and drill rod are equipped with dynamic seal, the bottom of water and slag container is equipped with slag discharge port, and the circular cavity of slag discharge port is installed with slag discharge wheel, and the slag water gas drainage pipe is connected between slag water gas drainage cover and water and slag container, and one end of high negative pressure pipe is connected to water and slag container, and the other end is connected with high negative pressure gas extraction pipe. The utility model can place the affected side arm in the retraction and fix on the chest, and the affected side trunk is not more than, is favorable to operation, has increased the patient's comfort feeling, has increased the chest restraint band simultaneously, and the safety of patient is guaranteed.

This invention discloses a single-crystal furnace leakage drainage device and a single-crystal furnace, including a furnace body with multiple support legs installed at the lower end of the furnace body. A crucible is disposed inside the furnace body, and a drain pipe is connected to the inner bottom of the furnace body. A diversion assembly is provided at the end of the drain pipe, used to alternately discharge leaked single-crystal silicon through two pipes. The diversion assembly includes a diversion box, which is fixedly connected to an L-shaped bracket on the outside of the furnace body. The diversion box contains a circular cavity and two storage cavities, and the drain pipe communicates with the top space of the circular cavity. This invention provides a single-crystal furnace leakage drainage device that achieves orderly alternating drainage, effective sealing to prevent leakage, efficient and uniform cooling, and is structurally stable and easy to maintain. It solves the technical problems of low drainage efficiency, poor sealing performance, and unsatisfactory cooling effect of existing devices, reducing equipment damage and safety risks caused by single-crystal silicon leakage, and ensuring the continuity and stability of single-crystal silicon production.

The application discloses an explosion-proof carrying equipment for initiating explosive, and relates to the technical field of carrying of initiating explosive.The application comprises a mechanical arm transfer part and a carrying assembly capable of moving on a horizontal transfer guide rail, wherein the carrying assembly comprises a moving base, a lifting transfer frame, a tray seat and an extrusion plate for clamping an explosion-proof box body.The bottom of the explosion-proof box body is communicated with two exhaust rotary discs through a second step hole, a sealing sheet, a first step hole and a central rotary column pipe.A hollow circular cavity, a centrifugal lever and a tangential exhaust hole are arranged in the exhaust rotary disc, and high-pressure gas pushes the exhaust rotary disc to rotate and discharge during explosion.The two exhaust rotary discs rotate in opposite directions to offset the torque, and a counterweight circular ring layer improves the rotation stability, so that the explosion-proof box body is lifted and transferred, and the sudden explosion pressure relief and carrying stability are improved.

The application provides a low-profile duplex filter antenna and belongs to the technical field of wireless energy transmission.The low-profile duplex filter antenna comprises an upper metal floor, a dielectric substrate, a lower metal floor, a cavity column, a perturbation via and a suppression via; the lower metal floor is arranged on the lower surface of the lower dielectric substrate; the upper metal floor is arranged on the upper surface of the dielectric substrate; the cavity column penetrates through the upper metal floor, the dielectric substrate and the lower metal floor and surrounds a substrate integrated waveguide cavity; the perturbation via and the suppression via penetrate through the upper metal floor, the dielectric substrate and the lower metal floor; a cross-shaped groove is etched in the center of the upper metal floor; two complementary split ring resonator grooves with different diameters are etched at the connection between the circular cavity and the two side rectangular cavities of the upper metal floor; two feed lines are led out from the two ends of the upper metal floor. The antenna has the characteristics of low profile, is easy to integrate, and simultaneously reduces the manufacturing cost of the antenna and facilitates processing and manufacturing.

A design method of a TE01 and TM11 circular waveguide dual-mode filter, the filter comprising two hollow circular cavities, an input coupling cutoff waveguide, an output coupling cutoff waveguide, a coupling cutoff waveguide, a cavity, and a cover plate, the two hollow circular cavities being connected to the input coupling cutoff waveguide and the output coupling cutoff waveguide respectively, the coupling cutoff waveguide being connected to the two hollow circular cavities, the cavity being provided with a recess corresponding in shape and size to the two hollow circular cavities, the input coupling cutoff waveguide, the output coupling cutoff waveguide, and the coupling cutoff waveguide after being connected for embedding, and the cover plate being fixed on the cavity by screws to form a seal.

This invention discloses a microwave and millimeter-wave circularly polarized antenna based on a SIW circular cavity, comprising a first dielectric substrate, a second dielectric substrate, a millimeter-wave radiating patch, a microwave radiating patch, a microwave feed patch, a metal via, a millimeter-wave SIW circular cavity, a metal ground plane, a microwave feed probe, a microwave feed network, and a millimeter-wave feed network. The upper surface of the first dielectric substrate is printed with the millimeter-wave radiating patch, the microwave radiating patch, and the microwave feed patch. The millimeter-wave radiating patch has a radiating slot, and the microwave feed patch and the microwave radiating patch are connected. The second dielectric substrate is located directly below the first dielectric substrate. The upper surface of the second dielectric substrate is printed with a metal ground plane, and feed slots and feed circular holes for the microwave feed probe to pass through are etched on the metal ground plane. The lower surface of the second dielectric substrate is printed with the microwave feed network and the millimeter-wave feed network. This invention has advantages such as multi-frequency operation, wide bandwidth, and dual circular polarization, and has certain potential in wireless communication applications.

The utility model discloses a rhinopithecus roxellana excrement sample storage device for DNA extraction relates to rhinopithecus roxellana technical field, including box, be provided with circular cavity in the box, be provided with circular column in rotation in the circular cavity, three placement cavities of circular array distribution are seted up to the circular column outside, the box mouth of penetrating type is shaped to one side of circular cavity, the purification mechanism that purifies the air in the placement cavity inside is provided with in the box, the circular column outer wall and circular cavity inner wall contact, this rhinopithecus roxellana excrement sample storage device for DNA extraction, through setting rotatable circular column, so make two placement cavities in circular column can always keep sealed state, so reduce the excessive peculiar smell of box interior to discharge, also can increase the sealing property of the storage jar of the storage in the box, and thus effectively improve the practicality of rhinopithecus roxellana excrement sample storage device for DNA extraction, and reduce the peculiar smell emission too much and influence the working environment.

The utility model provides a high temperature feeder with built-in oil injection channel, the lower part of the front end of the shell is equipped with a discharge port, an end plate above the discharge port is equipped with a bearing support, a high temperature bearing is installed in the bearing support, the front end of the main rod body of screw push rod is sleeved in the bearing, the outer end of bearing support is equipped with a circular port, a circular end cover is installed at the circular port through bolts, a circular cavity is formed among circular end cover, bearing and bearing support; the main rod body is a hollow rod, a metal pipe is installed in the hollow rod, the front end of the metal pipe is communicated with the circular cavity, and a sealing plug is connected to the rear end port; the utility model sets the circular cavity at the metal pipe and bearing in the screw push rod; the metal pipe can conveniently inject lubricating oil into the high temperature bearing, avoids the phenomenon that high temperature leads to lubricating oil to dry and volatilize rapidly and causes the phenomenon that the auger rotation feeding is blocked, the operation process of this oil injection mode without disassembly is convenient and fast, and the utility model can guarantee the continuous high efficiency feeding of the feeder.

This utility model provides a respiratory training device for geriatric patients, relating to the field of respiratory technology. It includes a three-way tube with annular screw grooves at each of its three ends. A fixed nozzle, a vertical cylinder, and a horizontal cylinder are respectively threaded onto and connected to the three ends of the three-way tube within the annular screw grooves. The bottom of the vertical cylinder has symmetrical fan holes, and the inner wall of each fan hole has a circular cavity. A first fan plate is embedded inside the circular cavity. A sphere is embedded inside the vertical cylinder. The inner wall of the horizontal cylinder has an L-shaped annular groove, and an L-shaped conical toothed ring is embedded and rotatably connected inside the L-shaped annular groove. A second fan plate is fixedly connected inside the L-shaped conical toothed ring. This utility model can flexibly achieve bidirectional training of inhalation and exhalation, adapting to the different respiratory rehabilitation needs of elderly patients, comprehensively exercising respiratory muscles, optimizing breathing patterns, improving lung ventilation and gas exchange functions, and assisting in the rehabilitation of lung diseases and the recovery of postoperative respiratory function.

This utility model provides a reversing valve with noise reduction function, relating to the field of reversing valve technology. It includes a reversing valve body with a trapezoidal cavity inside and near the top. A feed pipe is fixedly connected to the top of the reversing valve body, communicating with the trapezoidal cavity. Symmetrically arranged circular cavities are also inside the reversing valve body near the bottom, with connecting holes connecting the trapezoidal and circular cavities. A water outlet is provided at the bottom of each circular cavity. A circular hole is also provided inside the reversing valve body at the circular cavity. In this utility model, through the synergistic effect of "fluid flow stabilization design (trapezoidal cavity, cone head, and fixed sleeve combination, plus mechanical vibration buffering (spring and convex rod structure), and noise propagation isolation (sound insulation cylinder)," it can effectively reduce fluid impact noise and mechanical vibration noise, thereby improving the production environment and meeting the needs of precision equipment, quiet workshops, and other scenarios.

The application discloses a kind of three-dimensional rock stress in-situ monitor for underground rock formation and monitoring method, device includes horizontally arranged X-axis stress ring, Y-axis stress ring and Z-axis stress ring;The center of the X-axis stress ring and Y-axis stress ring is equipped with circular cavity, X-axis stress ring is equipped with X-axis stress gauge in the circular cavity, Y-axis stress ring is equipped with Y-axis stress gauge in the circular cavity, the X-axis stress gauge and Y-axis stress gauge are horizontally arranged, and are respectively fixed along X, Y axis direction;The X-axis stress ring and Y-axis stress ring are placed in stack, and the gap is directly reserved between the two, the top of the two is also equipped with connecting ring after stacking, the top of the connecting ring is equipped with connecting pipe;The Z-axis stress ring is equipped at the top of connecting pipe, it is vertically arranged, and is equipped with circular cavity in the center, Z-axis stress gauge is equipped in the circular cavity of Z-axis stress ring, the Z-axis stress gauge is vertically arranged, is fixed along Z axis direction, and the rock stress in three directions is measured respectively.

The invention relates to a multi-cavity wet pulverizer which comprises a circular cavity and a rotating shaft in the center, and a hopper, a spiral feeder, a material guide shearing plate, a shearing blade, a cutterhead and a filter screen are sequentially arranged in a center hole of the circular cavity; and the spiral feeder, the shearing blade and the cutterhead are arranged on the rotating shaft. The upper surface of the circular cavity is connected with an upper cover plate through a fulcrum bolt, circular baffle rings with different diameters are arranged on the inner side of the cavity of the upper cover plate, separation blades with different distances from the center of the cutterhead are arranged on the cutterhead corresponding to the circular baffle rings, and the separation blades on the cutterhead form a dynamic circular ring under high-speed rotation; the diameter of each dynamic circular ring is smaller than that of the corresponding circular baffle ring, and the lower edge of each circular baffle ring is lower than the upper edge of the dynamic circular ring formed by the upper baffle plate of the cutter head, so that materials splashed due to centrifugal force are blocked, the circular baffle rings and the dynamic circular rings form an annular crushing chamber, and a plurality of circular baffle rings and dynamic circular rings form a plurality of annular crushing chambers; the materials are collided and cut for multiple times.

The utility model discloses a kind of wire harness terminal welding mechanisms of anti-oxidation treatment, belong to wire harness terminal welding technical field, its technical scheme main points include welding station, the top of welding station is fixedly connected with backplate, the top of the front side of backplate is fixedly connected with machine plate, the top of machine plate is fixedly connected with electric push rod, the telescopic end of electric push rod is fixedly connected with connecting rod, the bottom of connecting rod is fixedly connected with welding device, by setting anti-oxidation component, sealing shell can make welding area form closed space, effectively isolate outside air, nitrogen cylinder is connected with circular cavity by branch pipe and electronic pressure reducing valve, nitrogen can be filled into sealing shell by the gas outlet hole evenly distributed at the bottom of circular cavity, form stable inert gas protection atmosphere, ensure that welding process is always in low-oxygen environment, effectively avoid terminal and wire harness metal material oxidation, improve the conductivity and mechanical strength of welded joint, improve the reliability and service life of product.

The utility model discloses a seeding machine seed dropping mechanism, including hopper, the bottom one side of hopper is fixed with motor, the bottom of hopper still is provided with a plurality of seed dropping components, the seed dropping component includes the casing, the circular cavity is opened in the casing, the casing is provided with two partition vane wheels, two the partition vane wheel between is provided with the partition disc, the motor output shaft is fixed with the pivot, the pivot penetrates the casing of a plurality of seed dropping components, and two the partition vane wheel and partition disc of same seed dropping component are all with pivot fixed connection, the partition disc is used for separating out two storage cavities with circular cavity, two the storage cavity top end is connected with hopper respectively through two first passageways. The utility model discloses two first passageway design forms two seed supply path, when one of first passageway is blocked because seed caking, impurity card stagnation etc. reason, another first passageway can continue to supply seed, avoid the single passageway block and lead to no seed to be sowed into the ground.

The utility model provides a portable hopper with the function of pouring segment test block and carrying vibration, including hopper cavity, support leg, lifting lug, gate and electric vibrator, the upper portion of hopper cavity is rectangular or circular cavity, the lower portion of hopper cavity is the bucket -shaped cavity that gradually closes mouth from top to bottom, the bottom end of bucket -shaped cavity is the discharge gate, the inner wall of circular cavity and bucket -shaped cavity is smooth transition, the support leg is located at four sides of hopper cavity, the lowest end of support leg is lower than the discharge gate of hopper cavity, the top of each support leg is provided with lifting lug, the gate is provided at the discharge gate, the lower area between one pair or two pairs of support legs is provided with crossbeam handle part, is used for adjusting the discharge gate position under the state of suspension, the side portion of bucket -shaped cavity installs electric vibrator, this hopper has the advantages of higher pouring efficiency, construction cost reduction, does not occupy too much space, simple and easy to use.

This utility model discloses a carbon fiber mobile phone frame forming mechanism, including an upper mold and a lower mold. The top of the upper mold is connected to a lifting mechanism, and the top of the lower mold has a pressing groove in a square shape. The bottom of the upper mold is fixedly connected to a pressing frame that matches the pressing groove. The lower mold has a circular cavity inside, and a lifting plate is slidably connected to the inner wall of the cavity. Two sliding rods are fixedly connected to the inner wall of the cavity, and the lifting plate is respectively sleeved on the two sliding rods and slidably connected to them. Springs are sleeved on both sliding rods. This utility model can automatically demold the carbon fiber mobile phone frame after forming, and the worker can push the carbon fiber mobile phone frame out of the lower mold by pulling the operating rod, thus facilitating the removal of the carbon fiber mobile phone frame and improving the processing efficiency of the device.