260 results about "Circular cavity" patented technology

The invention relates to the technical field of mold cooling, and discloses a high-temperature mold rapid cooling device which comprises an upper mold plate and a lower mold plate, an annular runner is arranged between the upper mold plate and the lower mold plate, and a flow guide assembly is arranged in the annular runner; a base is arranged at the bottom of the lower die plate, a circular cavity is formed between the lower die plate and the base, and a scraping assembly is arranged in the circular cavity. A cover plate is placed on the top of the upper mold plate, a drainage pipe is arranged on the right side of the cover plate, a square groove is formed in the top of the upper mold plate, and an assembling assembly is arranged between the cover plate and the base. When the groove-shaped base moves to the receding groove, the scraping plate is separated from the top wall of the stepped groove, after the supporting plate crosses the receding groove, the first spring is compressed, and the scraping plate is attached to the top wall of the stepped groove, so that the scraping plate scrapes on the top wall of the stepped groove, water scale is removed, the heat conduction effect of cooling water and a mold is guaranteed, water scale accumulation is restrained, and the service life of the mold is prolonged. And the cooling efficiency is ensured.

The invention provides a low-torque hydraulic balance ball valve, which relates to the technical field of valves, and comprises a valve body, a circular cavity is arranged in the valve body, a rotating shaft is arranged on the valve body in a penetrating manner, a valve core is arranged in the circular cavity, the rotating shaft is connected with the valve core, the valve body is also provided with a connecting channel, and the inlet end of the valve body is connected with the circular cavity through the connecting channel in a penetrating manner; a connecting hole is formed in the valve element, the valve element is communicated with the circular cavity through the connecting hole, a driving rod is arranged in the connecting channel, a stable sealing device is further arranged in the valve body, the driving rod is used for driving the stable sealing device, and the stable sealing device is used for enhancing the sealing effect of the rotating shaft and the circular cavity. The stable sealing device is arranged, the sealing action and the hydraulic balance process are synchronously carried out, an additional power source is not needed, the sealing effect of the rotating shaft and the circular cavity is synchronously enhanced in the hydraulic balance process, and dual optimization of torque reduction and leakage prevention is achieved.

The utility model provides a surface treatment polishing device for mobile toilet roof processing, which comprises a motor, a turntable, a small polishing head and a polishing piece, the output end of the motor is fixedly provided with the turntable, the outer end of the turntable is provided with a connector, and a round cavity is arranged between the connector and the turntable; an electromagnetic driver is detachably and fixedly mounted in the circular cavity, and a small polishing head is detachably and fixedly mounted on the electromagnetic driver; a polishing piece is detachably and fixedly installed on the connector, and a hole is formed in the surface of the polishing piece in a penetrating mode. The small polishing head is positioned in the hole; by means of the overall arrangement, in the using process, the surface of the roof of the mobile toilet can be polished in a large area, and concave positions and convex positions on the surface of the roof of the mobile toilet can be polished under the condition that no equipment is replaced; therefore, the polishing quality of the roof surface of the mobile toilet is guaranteed, and the whole mobile toilet is more convenient and flexible.

A multifunctional integrated interface for on-orbit assembly of modular space facilities belongs to the technical field of aerospace. A support structure is connected between an upper cover plate and a fixed base and constitutes a circular cavity structure, a driving ring is drivingly connected with a pin ring and can drive the pin ring to move up and down, the pin ring is used for realizing alignment positioning of the interface, the driving ring and the fixed ring are matched through a coupling pin and can drive a coupling ring to move up and down, the coupling ring is used for realizing locking function of the interface, a rotary base is drivingly connected with the driving ring at a lower end, a plurality of electric heating components are connected with the rotary base at an upper end and pass through the fixed ring, the driving ring drives the plurality of electric heating components to move up and down through the rotary base, and the plurality of electric heating components are used for realizing data transmission and power transmission function in cooperation with a counter interface. The interface has mechanical locking, data transmission, power transmission and heat exchange functions, and can meet on-orbit working requirements of the modular space structure.

The invention discloses a bionic cross plate tubular pile with the outer wall imitating snake scales, the inner wall imitating tree roots and the bottom end imitating tooth roots and a manufacturing method of the bionic cross plate tubular pile. The bionic cross plate tubular pile comprises a cylindrical tubular pile body, cross plates and tooth root imitating structures. The outer wall of the cylindrical pipe pile is provided with a plurality of snake-scale-imitated protruding structures, and the inner wall of the cylindrical pipe pile is provided with a plurality of tree-root-imitated protruding structures. The cross plate is arranged in the cylindrical pipe pile and divides a circular cavity in the cylindrical pipe pile into four first fan-shaped cavities; the tooth root imitating structure is arranged at the bottom end of the cylindrical pipe pile. According to the invention, the inertia moment of the pile body, the pile end resistance, the pile side friction resistance and the pulling resistance are synergistically enhanced through multiple bionic designs, so that the comprehensive bearing capacity of the tubular pile under the combined action of vertical and horizontal loads is remarkably improved, and a novel solution is provided for pile foundation engineering under complex load and geological conditions.

The invention relates to the technical field of filtering equipment, in particular to an air filter and a vacuum pump with the same. The air filter comprises a fixed shell, a filter element assembly, a quick-release upper cover, a quick-locking assembly and an unlocking circular ring, the fixed shell comprises a hollow cylinder, an air inlet side pipe, an air outlet lower pipe, an annular convex edge and a guide lock groove; the filter element assembly comprises a bottom circular ring, a top circular ring, an inner filter ring, a middle filter ring and an outer filter ring; the quick-release upper cover comprises an upper cover body, an upper cover circular cavity, an upper annular groove, a contact disc and a lower annular groove. The quick lock assembly slides into the corresponding guide lock groove to lock the quick release upper cover; the unlocking ring comprises an unlocking ring body, an unlocking ring groove and an active inclined face. According to the air filter provided by the invention, layer-by-layer filtration from coarse to fine can be realized through the three layers of filter rings of the filter element assembly; the filter element assembly and the quick-release upper cover can be conveniently detached. The utility model further discloses a vacuum pump with the air filter.

The invention discloses a transport device for plum processing, and belongs to the technical field of fruit processing. A conveying device for plum processing comprises a device body, the upper end of the device body is connected with a first conveying belt, the upper side surface of one end of the first conveying belt is connected with a plurality of guide channels, and a circular cavity is formed through cooperation of a storage groove and a circular groove, so that independent fixation of single plums is achieved; friction and collision caused by jolting during transportation are avoided, so that the breakage rate during long-distance transportation is reduced, the requirement of subsequent processing on fruit integrity is effectively guaranteed, fruit percolate can be quickly guided out through the leakage holes of the storage cavity, juice is directionally guided into the collection cavity through the inclined flowing grooves, and the situation that the juice is retained to breed molds is avoided; meanwhile, an air convection channel is formed by penetrating through the ventilation cavity of the storage frame body, and is matched with an interlayer gap during stacking, so that the internal humidity of the cavity is remarkably reduced, heat accumulation generated by fruit respiration is inhibited, and the mildew rate of plums is further reduced.

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 device for thoroughly mixing sludge and raw coal, relating to the field of raw coal processing technology. It includes a U-shaped frame plate, with a left support plate fixedly connected to the upper surface of the U-shaped frame plate near the left side wall. A circular cavity column is fixedly connected to the inner side of the right side wall of the U-shaped frame plate, and an arc-shaped sliding groove is formed on the right side wall of the U-shaped frame plate. The mixing mechanism of this invention, through the collaborative operation of hollow plates, transverse partitions, and perforations, utilizes the high-speed flow of sludge within a continuous S-shaped channel cavity to successfully achieve top-to-bottom sprinkling of raw coal placed between multiple hollow plates, thereby achieving thorough mixing of sludge and raw coal. The hollow plates divide the raw coal into multiple narrow areas, allowing for more thorough sprinkling of the sludge onto the raw coal, avoiding dead zones during the sprinkling process, and greatly improving the mixing efficiency of sludge and raw coal. Furthermore, the mechanism is ingeniously designed, has low manufacturing costs, and is conducive to widespread application.

The application relates to the technical field of filtering equipment, in particular to an air filter and a vacuum pump with the same. The air filter comprises a fixed shell, a filter core assembly, a quick-release upper cover, a quick-lock assembly, an unlocking ring, the fixed shell comprises a hollow cylinder, an air inlet side pipe, an air outlet lower pipe, an annular convex edge and a guide lock groove, the filter core assembly comprises a bottom ring, a top ring, an inner filter ring, a middle filter ring and an outer filter ring, the quick-release upper cover comprises an upper cover body, an upper cover circular cavity, an upper ring groove, a contact disc and a lower ring groove, the quick-lock assembly is slid into the corresponding guide lock groove to realize the locking of the quick-release upper cover, and the unlocking ring comprises an unlocking ring body, an unlocking ring groove and a driving inclined surface. The air filter can realize layer-by-layer filtering from coarse to fine through the three-layer filter rings of the filter core assembly, and the filter core assembly and the quick-release upper cover can be conveniently disassembled. The application further discloses the vacuum pump with the air filter.

A kind of manual device for identifying tape winding harness, including base frame, which is provided with an open circular cavity, a rotating wheel is rolling fitted in the open circular cavity, and an open slot extending to the center of the circle is arranged on the circumference of the rotating wheel;The follow-up mechanism includes a positioning block, support arms and support plates are arranged on both sides of the positioning block respectively, the support arms and / or support plates are used to support the identification tape reel, the support plate is connected with the heart shaft of the rotating wheel and rotates synchronously with the rotating wheel;The guide mechanism includes a first guide rod and a rotating compression block, the first guide rod is arranged above the positioning block and installed on the support arm and / or support plate, the rotating compression block is arranged between the first guide rod and the positioning block, a hinge shaft is fixed circumferentially in the rotating compression block and the rotating compression block is hinged on the support arm and / or support plate.

The invention relates to the technical field of powder metallurgy, and discloses a friction plate composite pressing die which comprises a lower die assembly and an upper die assembly, and a middle die assembly is arranged between the lower die assembly and the upper die assembly. The lower die assembly comprises a lower die table, a circular cavity is formed in the lower die table, a liftable supporting die plate is connected into the circular cavity in a sleeved mode, a core column is inserted into the supporting die plate in a sleeved mode, and the core column is fixed to the bottom of the circular cavity. The upper die assembly comprises an upper die pressing table and a pressing ring inserted into the upper die pressing table in a sleeved mode. The pressing ring is connected with a high-low switching mechanism. The upper die pressing table is fixed to the upper die base, the middle die assembly comprises an outer ring, an inner cylinder and a connecting mechanism connecting the outer ring and the inner cylinder which are coaxially arranged, the outer ring is provided with a driving mechanism driving the outer ring to move horizontally, the inner wall of the outer ring and the outer wall of the inner cylinder form a middle die cavity, and the middle die cavity and the pressing ring are arranged in a matched mode. Through secondary pressing, tight combination of the powder metallurgy base body and the friction part is achieved, and the problems that a traditional technology is low in combination strength and poor in production efficiency are solved.

The utility model relates to the technical field of electronic equipment, in particular to a shockproof support for electronic equipment, which comprises a mounting plate and an electronic equipment body arranged below the mounting plate, and further comprises a supporting rod arranged on the rear side of the electronic equipment body, and the lower end of the supporting rod is fixedly connected with the rear side of the electronic equipment body through a mounting connecting piece. The electronic equipment body is connected with the mounting plate. A plurality of circular cavities are formed in the mounting plate, and circular holes are formed in the lower sides of the circular cavities; the anti-vibration mechanism comprises an anti-vibration unit and a connecting rod, the anti-vibration unit is arranged in the circular cavity, and the connecting rod is rotationally arranged between the anti-vibration unit and the supporting rod and used for providing an anti-vibration effect for the electronic equipment body; the shockproof mechanism can provide a shockproof effect for the electronic equipment body from multiple directions. According to the utility model, the shockproof effect can be provided for the electronic equipment body in multiple directions, the shockproof effect is excellent, and the service life of the electronic equipment body is prolonged.

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.

The utility model relates to the technical field of power construction, in particular to a cable traction device. The cable traction device comprises a base, a guide assembly is arranged on one side of the input end of the top of the base, when a cable is pulled, the cable sequentially penetrates through a circular cavity formed by a plurality of arc-shaped blocks and an empty groove formed between a transmission roller and a driven roller, a motor is started to drive a transmission rod to rotate, and then the transmission rod drives the transmission roller to rotate. The driven roller is driven to rotate through the friction force between the transmission roller and the cable, so that the cable is pulled, when a small-diameter cable is pulled, the lifting assembly pushes the adjusting frame to move downwards, the driven roller is driven to move downwards, and the distance between the transmission roller and the driven roller is shortened, and when a large-diameter cable is pulled, the lifting assembly pulls the adjusting frame to move upwards, and the driven roller is driven to move upwards. And the distance between the driving roller and the driven roller is increased, and the distance between the driving roller and the driven roller is changed, so that the device is suitable for cables with different diameters, and the application range is enlarged.

An antioxidant granulating device relates to the field of antioxidant preparation and comprises a base, a screw extruder and a power source, an extrusion end is arranged on the right end face of the screw extruder, a partition plate is fixedly mounted on the base, a conversion disc is rotatably connected to an extension portion of the upper end face of the partition plate, a plurality of mounting circular cavities are distributed in the conversion disc, and the mounting circular cavities are communicated with the screw extruder. The extrusion end is provided with a plurality of circular mounting cavities, each circular mounting cavity can be communicated with the extrusion end, and a shaping tray is slidably mounted in each circular mounting cavity. The shaping trays are switched by rotating the conversion disc, so that the bottom ends of the shaping trays can be embedded into the inner cavity defined by the convex part of the extrusion end to form tight connection; and meanwhile, a part of the surface of the shaping tray protrudes outwards, so that extruded raw materials can be conveniently cut into particles, the raw materials can fully pass through the through holes of the shaping tray when being extruded, and the raw materials are effectively prevented from overflowing from the edge.

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.

The invention discloses a continuous dehydrator for printing and dyeing chemical fiber cloth, and relates to the technical field of cloth dehydration, the continuous dehydrator comprises a dehydration box, the interior of the dehydration box is in a circular cavity shape, and communicated inlets and outlets are formed in the two sides of the dehydration box; the dehydration assembly comprises auxiliary dehydration assemblies distributed on the upper side and the lower side of the inlet and outlet in a central symmetry mode and a main dehydration assembly arranged in the middle of the dehydration box; the drainage pipe is fixedly arranged at the bottom of the dehydration box, so that liquid accumulated in the dehydration box is discharged from the drainage pipe. The main dewatering assembly is arranged in the middle of the circular cavity of the dewatering box, cloth can be continuously dewatered in the conveying process, meanwhile, auxiliary dewatering assemblies arranged on the upper side and the lower side of the main dewatering assembly in a central symmetry mode are matched, printing and dyeing chemical fiber cloth is subjected to multiple times of dewatering operation in the continuous penetrating process, the dewatering effect is improved, and the dewatering efficiency is improved. Meanwhile, the dehydration efficiency is improved.

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.

The application discloses a preparation method, product and device of a square core optical fiber preform. The preparation method comprises the following steps: (1) making the rotating central axis of a Leilo triangular drill bit coaxial with the geometric central axis of a circular cavity cladding sleeve, and drilling a rounded square with the width d as the side length by using the Leilo triangular drill bit to obtain a square cavity cladding sleeve; (2) sleeving a square core rod with the width d' into the square cavity cladding sleeve, and stretching or fusing the square core rod into a circular solid rod; and (3) manufacturing the square core optical fiber preform according to the designed shape size and refractive index profile. The Leilo triangular drill bit is designed according to the width fixing principle of the Leilo triangular structure, and can be used for square hole processing of brittle materials such as quartz glass. The optical fiber prepared by using the square core rod and the square hole sleeve combination drawing reduces the probability of uncontrollable core-cladding interface air line occurrence caused by the original square core rod and circular sleeve combination drawing, and guarantees the reliability of the optical fiber.

The utility model provides an environment-friendly deodorization toilet seat cushion, and belongs to the technical field of toilet seat cushion production. Comprising a closestool cushion, one side of the closestool cushion is fixedly connected with a fixing shaft, one end of the inner side of the closestool cushion is fixedly connected with a water storage cavity, the two ends, located on the inner side of the closestool cushion, of the water storage cavity are fixedly communicated with spraying bases, the outer sides of the spraying bases are fixedly connected with a plurality of spraying heads, and the spraying heads penetrate out of the closestool cushion and extend to the inner side of the closestool cushion; the two ends in the fixing shaft are slidably connected with rotating shafts. By arranging the moving rod, the lifting block and the rotating rod, the device can enable the lifting block to ascend and descend through the moving rod, the rotating rod is driven to drive the two rotating shafts 7 to synchronously move, the two rotating shafts 7 stretch out of or retract into the fixed shaft, the device can be conveniently mounted or dismounted in a closestool through the rotating shafts, and the dismounting and mounting efficiency of the device is improved; and through cooperation of a clamping block, a sliding cavity and a circular cavity, the position of the moving rod can be conveniently limited, the stability of the rotating shaft is ensured, and the stability of the device is improved.

The application provides a horizontal middle-open multi-stage centrifugal pump transition flow channel and a multi-stage centrifugal pump. Two transition flow channels are symmetric along the center of a vortex chamber. The transition flow channel is used for connecting the vortex chamber and a circular cavity in which a next-stage impeller is installed. The transition flow channel comprises a diffusion section which is gradually expanded along the flow direction. The entrance and the exit of the diffusion section are at an acute angle with the horizontal center line, so as to reduce the radial length of the diffusion section. The included angle between the entrance and the exit of the diffusion section and the horizontal center line is not more than 30°. A guide plate is arranged in the transition flow channel at the front of the circular cavity, so as to divide the fluid entering the front of the circular cavity into two flows. The application changes the shape of the outer edge of the transition flow channel to improve the internal flow structure, reduces the hydraulic of the fluid, and achieves the purpose of further improving the head and efficiency of the low specific speed horizontal middle-open multi-stage centrifugal pump.

The utility model discloses a multidirectional oil cylinder seat, which comprises a slewing bearing, the base plate is fixedly connected to the upper part of the slewing bearing; the bottom plate is connected to the upper part of the base plate; each lower seat is of a structure with a rectangular lower part and an arc upper part, the number of the lower seats is two, and the two lower seats are welded to the two sides of the bottom plate respectively; each upper base is of a structure with an arc-shaped lower portion and a rectangular upper portion, the two upper bases are connected to the upper portion of the lower base in a matched mode, and the arc-shaped portions of the lower base and the upper bases are connected to form a circular cavity; a space allowing the oil cylinder to be placed therein is formed between the two lower seats; and a cavity between the arc-shaped parts of the lower seat and the upper seat is provided with a space allowing an oil cylinder lifting lug to pass through. When in use, the oil cylinder is placed between the two lower seats from the upper side of the upper seat, the lifting lugs of the oil cylinder respectively penetrate through the cavities between the arc-shaped parts of the lower seats and the arc-shaped parts of the upper seat, and when the oil cylinder needs to be rotated, the oil cylinder can be directly rotated through the slewing bearing, so that the oil cylinder is very convenient to use.

The utility model relates to an exercise rehabilitation device for sarcopenia of old people, which aims to solve the technical problem that the existing wrist joint exercise rehabilitation device is used for fixing the holding position of a hand and is not comfortable to hold for different old people, and comprises a bottom plate, a support frame, a bottom frame, a mounting frame, a rotating arm, a connecting ring and a holding structure, the supporting frame is fixedly arranged at one end of the top side of the bottom plate. The bottom frame is fixedly arranged on the top side of the bottom plate; the mounting frame is fixedly arranged on the bottom frame; a connecting shaft is connected in the circular cavity of the mounting frame in a penetrating manner; the connecting shaft is sleeved with an annular hole in one end of the rotating arm; the outer end of the connecting shaft is sleeved with the connecting ring; the connecting ring is in limiting fit with one end of the rotating arm; the utility model has the advantages that the position of the holding rod at the other end of the rotating arm can be adjusted according to the holding habit of the elderly, so that the elderly can hold comfortably.

The utility model discloses a civil engineering construction waste treatment device which comprises a shell, a discharging cavity is formed in the shell, a feeding cavity is formed in the shell, the discharging cavity and the feeding cavity are both communicated with the interior of the shell, the discharging cavity and the feeding cavity are both circular cavities, and the discharging cavity and the feeding cavity are communicated with the interior of the shell. First rotating rods are rotationally connected between the front inner wall and the rear inner wall of the discharging cavity and the front inner wall and between the front inner wall and the rear inner wall of the feeding cavity correspondingly, a plurality of partition plates are fixedly connected to the two first rotating rods correspondingly, a mounting plate is fixedly connected to the front side of the shell, and a motor is mounted on one side of the mounting plate; an anti-blocking mechanism and a cleaning mechanism which are used for building waste treatment are arranged in the shell. According to the intermittent discharging device, intermittent rotation of the first rotating rod and the partition plates on the lower portion is achieved through cooperation of the complete gear and the incomplete gear on the lower portion, intermittent discharging is achieved, waste flowing smoothness can be improved after the partition plates rotate, and the situation that waste is accumulated in the feeding process and the discharging process is avoided.

The invention belongs to the technical field of semiconductor laser pumping solid lasers, and discloses a semiconductor side pumping solid laser module based on a multi-cavity reflection light-gathering cavity, which comprises a multi-cavity reflection light-gathering cavity (2), an elliptical cavity and a semicircular cavity which are formed in the multi-cavity reflection light-gathering cavity (2), and the inner walls of the elliptical cavity and the semicircular cavity are reflecting surfaces. An LD bar (1) and a thin rod type laser working medium (3) are arranged in the multi-cavity reflection condensation cavity (2), pump light emitted by a luminous point of the LD bar (1) is reflected by the inner wall and then converged at the axis position of the thin rod type laser working medium (3), residual pump light absorbed by the thin rod type laser working medium (3) is reflected back to the thin rod type laser working medium (3) again, and the residual pump light is converged at the axis position of the thin rod type laser working medium (3). And residual pumping light energy is absorbed again, so that high-efficiency pumping is realized. According to the invention, the utilization efficiency of pump light energy is improved, and under the same laser output power, the volume, weight and power consumption indexes of the pumping part of the laser are reduced.

A double-ladder high-rib reinforced corrugated pipe comprises a pipe body, and a plurality of annular protrusions are connected to the outer edge face of the pipe body. An annular cavity is formed in the annular protrusion, and the annular cavity is filled with a reinforcing frame. The reinforcing frame comprises a hollow outer framework, the outer framework abuts against the inner wall of the annular cavity, and the reinforcing frame further comprises reinforcing ribs located in the outer framework. The vertical plane where the reinforcing ribs are located is perpendicular to the extending direction of the pipeline body. Compared with the prior art, according to the scheme, firstly, a cavity with the circular or quasi-circular inner section of an annular protrusion in the prior art is replaced, the rectangular or trapezoidal cavity is used, and compared with a circular cavity, the rectangular or trapezoidal cavity is larger in bearing load and not prone to deformation; and secondly, according to the scheme, the reinforcing frame is arranged in the annular cavity, the supporting effect on the annular protrusion is improved, the radial bearing capacity of the annular protrusion is larger in cooperation with the integrally-formed reinforcing ribs, and the strength of the annular protrusion is further improved.

The utility model discloses a greenhouse film support convenient to install. The greenhouse film support comprises a support rod and soil inserting assemblies at the two ends of the support rod. The soil inserting assembly comprises a soil inserting cone internally provided with a vertical cavity and a circular cavity, the vertical cavity is in transmission connection with a knob and a rotating shaft through a gear, the bottom of the rotating shaft is connected with a rotating rod with a vertical groove, and the rotating rod drives the soil breaking cone to ascend and descend through a connecting block in sliding connection; a rotating plate driven by a rotating shaft is arranged in the circular cavity, and an arc groove of the rotating plate is in sliding fit with a circular block on the expansion rod connecting column, so that the expansion rod can extend out of the side hole in the radial direction. During use, the soil inserting cone is firstly inserted to enable the soil breaking cone to penetrate through soil, the rotary knob is rotated to drive the rotating shaft to rotate through gear transmission, the expansion rods are expanded to anchor the soil, and the soil breaking cone is retracted for protection. The support achieves one-key installation through a linkage structure, the expansion rods form multidirectional pulling resistance, the ground breaking cone can be stored to avoid hurting people, and the support has the advantages of being easy and convenient to operate, reliable in fixation and good in safety.

The utility model discloses a quantitative feeding device for pig breeding, and relates to the technical field of quantitative feeding devices.The quantitative feeding device comprises a mixing box, a first round cavity is formed in the mixing box, a first round rod is rotationally installed in the first round cavity, and a stirring assembly is arranged outside the first round rod; the outer bottom face of the mixing box is fixedly connected with a flow dividing cover in a penetrating mode, the outer bottom face of the flow dividing cover is fixedly connected with a quantifying box in a penetrating mode, second circular cavities are symmetrically formed in the quantifying box, second circular rods are rotationally installed in the two second circular cavities, and quantifying assemblies are arranged outside the two second circular rods. Through mutual cooperation of the first round rod, the first cylinder, the connecting plate and the stirring blades, various kinds of feed can be fully scattered and evenly mixed, meanwhile, the mixed feed can be accurately fed through the second round rod, the second cylinder, the rectangular groove and the discharging square cover, the situation that growth and development of live pigs are affected due to too much or too little manual feeding is avoided, and the working efficiency is improved. Therefore, the practicability is improved.