90results about How to "Reduce crush damage" patented technology

The invention provides an automated building block production line, and belongs to the technical field of operation and transportation. The automated building block production line solves the problems of an existing building block production line that control over feeding is inaccurate, the structure is unreasonable, and the system is not stable enough. The automated building block production line comprises a distributing system, a building block formation system, a maintenance system, a supporting plate recycling system and an automatic control system. The distributing system further comprises a shell fabric aggregate bin and a shell fabric weighing hopper used for weighing, so that a preset amount of shell fabric can be output accurately. The building block formation system further comprises a feeding machine and a secondary distributor, so that materials are fed to a blocking making machine in batches. The extension end of a supporting plate recycling conveyor line in the supporting plate recycling system is further provided with a supporting plate returning machine which pushes supporting plates on a plate overturning machine to a plate feeding machine. The automated building block production line has the advantages that feeding is accurate, stability is high, and arrangement is reasonable.

The invention belongs to the technical field of fruit processing and relates to a separating device and a preparation method for sweet orange sacs. The separating device comprises a screen type conveyer belt which is driven by a power unit and provided with a feeding hopper at the head, a garbage collecting tank at the tail, a sac collecting tank at the lower portion and high-pressure water pipes which are arranged on the upper side and provided with jet holes and a jet flow angle controllers, wherein the high-pressure water pipes are parallelly connected and converged, then connected in a series with a flow controller, and communicated with a liquid outlet of a high-pressure pump, and the bottom of the sac collecting tank is communicated with a filter, a buffer tank and a liquid inlet of the high-pressure pump. The preparation method for the sweet orange sacs includes the steps of classification, blanching for peeling, sac coating removal, sweet orange juice production, sac separation, mixing filling and the like. According to the device and the method, the separating effect is good, the practicability is high, and the production process is simple; produced sweet orange sac grains are good in completeness and high in nutritive value; and the device and the method are suitable for separation of the sweet orange sacs and preparation of sweet orange sac beverage.

The invention discloses a cantilever-type lifting medical stretcher which comprises a bed stand, a lifting frame and a lead screw feeding mechanism. Casters are arranged at four bottom corners of the bed stand, a support frame is arranged on one side of the bed stand, a cantilever connected with the lifting frame is arranged on the upper portion of the support frame, a sleeve connected with the lifting frame is arranged in the middle of the support frame, the lifting frame is provided with a power mechanism, the lead screw feeding mechanism is positioned in the front of the lifting frame, and the front end of the lead screw feeding mechanism is connected with a bed board. The lifting frame together with the sleeve can vertically move along the supporting frame and is applicable to sickbeds with different heights, and the lead screw feeding mechanism can effectively advance and draw back the bed board. By the aid of the cantilever-type lifting medical stretcher, a patient can be effectively shifted to another bed and transferred, the pain of the patient is relieved, and the working pressure of medical workers is relieved. The cantilever-type lifting medical stretcher is unique in creation, convenient to use and easy to popularize.

The invention relates to a preset self-adjusting full-positioning clamping device for automobile part drilling, which comprises a rack, a drilling auxiliary clamping device, a human-hand-simulated self-resetting reciprocating type cleaning mechanism and a detachable self-separation recovery device, a dust collection hole is formed in the middle of the upper wall of the rack, the human-hand-simulated self-resetting reciprocating type cleaning mechanism is arranged on the upper wall of the rack, and the detachable self-separation recovery device is arranged on the lower wall of the rack. The drilling auxiliary clamping devices are symmetrically arranged on the machine frame, and the detachable self-separation recycling device is arranged under the dust collecting holes. The invention belongs to the technical field of clamping devices for drilling parts, and particularly provides a clamping device for drilling parts by utilizing a dynamic characteristic principle, a principle of changing harm into benefit and a pre-reaction principle and by virtue of a magnetic field as compensation. According to the preset self-adjusting full-positioning clamping device for drilling the automobile parts, all-directional dead-corner-free self-adaptive attaching type clamping can be carried out on various types of automobile parts with uneven clamping faces under the condition that no positioning element or other sensors exist, the efficiency is high, and the automation degree is high.

The invention relates to a sugarcane peeling device, and belongs to the technical field of food processing. The sugarcane peeling device is composed of a datum frame, a knife rest, a knife rest fixing rod, a first cutter, a datum wheel, a rack, a base, a second cutter, a first feeding roller, a lower bearing pedestal, a second feeding roller, a driving gear, a driven gear, an upper bearing pedestal and a driving machine. The knife rest is composed of a fitting knife rest, a catch spring plate, a spring and a sliding rod, and the first feeding roller is composed of a roller soft core, a roller outer covering shell and a rotating shaft. The sugarcane peeling device has the advantages of being high in efficiency, small in energy consumption, easy to operate and small in noise, and the peeled sugarcane has not residual peel or extrusion damage and is attractive in appearance and good in mouthfeel.

The invention provides a method for producing a bulletproof material. The bulletproof material production method comprises the following steps: a) polyethylene fiber orthogonal no-woven cloth is unwound from a roller wound with the polyethylene fiber orthogonal no-woven cloth to predetermined length; b) the unwound polyethylene fiber orthogonal no-woven cloth is drawn to the predetermined length; c) under the predetermined compressing temperature, pressure and time, by using a platen press, the polyethylene fiber orthogonal no-woven cloth is subjected to hot pressing to form the bulletproof material, wherein, before the hot pressing is carried out, the unwound polyethylene fiber orthogonal no-woven cloth is drawn to an expansion state; and the step a)-step c) are repeated. According to the invention, the method for producing the bulletproof material enables complete fixing, the performance after fixing is stable, and bubbles as well as surface extrusion and damage can be reduced.

The embodiment of the invention discloses a plate stacking and pushing device which comprises a rack and a lifting platform arranged on the rack, a plate pushing side is arranged on one side of the lifting platform, and a fixed side is arranged on the other side of the lifting platform. The plate pushing side comprises a lifting air cylinder installed on the rack in the vertical direction, an output shaft of the lifting air cylinder is downwards connected with a lifting sliding plate, a horizontally-arranged plate pushing air cylinder is arranged at the tail end of the lifting sliding plate, and an output shaft of the plate pushing air cylinder is connected with a buffer push plate. The fixed side comprises a fixed-point air cylinder installed on the rack in the vertical direction, an output shaft of the fixed-point air cylinder is downwards connected with a fixed baffle, the plate pushing air cylinder and the fixed baffle are lowered to proper positions at the same time through the lifting air cylinder and the fixed-point air cylinder, and then plates are pushed and stacked in order in the direction close to the fixed baffle through the plate pushing air cylinder in the horizontaldirection.

The invention provides a medical epidemic-prevention body temperature measuring device. The measuring device includes a temperature measuring shell and a temperature measuring handle connected to thetemperature measuring shell; the temperature measuring shell is provided with a temperature measuring port; an infrared temperature detecting member is arranged in the temperature measuring shell; themeasuring device also includes a driving part, a distance controlling line and two distance controlling rods; two slipping channels corresponding to the distance controlling rods one to one are arranged in the temperature measuring shell; the slipping channels communicate with the outer sidewall of the temperature measuring shell provided with the temperature measuring port and form distance controlling holes; the distance controlling rods are slidingly connected to the slipping channels; the driving part is used for pushing the distance controlling rods to slip; the rod ends of the distancecontrolling rods can be retracted inside and outside the distance controlling holes; the two ends of the distance controlling line are connected to the rod ends, close to the distance controlling holes, of the two distance controlling rods; the outer shell wall of the temperature measuring shell provided with the temperature measuring port is provided with a disinfection support; and sterilized cotton dipped with disinfectant is arranged in the disinfection support. Under the premise of guaranteeing the accuracy of temperature measurement, the measuring device can reduce the possibility of virus cross infection during using.

The invention discloses a cleaning device for a printing model of a 3D printer. The cleaning device for the printing model of the 3D printer comprises a cleaning box, an alcohol box, a cleaning mechanism, a position limiting mechanism and a filtering mechanism, wherein the cleaning mechanism, the position limiting mechanism and the filtering mechanism are all positioned in an inner cavity of the cleaning box; the alcohol box communicates with the cleaning mechanism; the cleaning mechanism comprises a main rotating rod and a sub rotating rod; a transmission belt is connected between the main rotating rod and the sub rotating rod; each of the main rotating rod and the sub rotating rod is rotationally connected with the top of the cleaning box; a first motor is arranged at the top of the main rotating rod; a cleaning passage is formed in the center of an inner cavity of the sub rotating rod; a fixing seat is arranged at the top of the sub rotating rod; a connecting shaft is arranged at the center of the top of the fixing seat; and a conveying pipe is connected between the connecting shaft and the alcohol box. The cleaning device for the printing model of the 3D printer has the advantages that the design structure is reasonable, resin particles in gaps or corners of model samples can be conveniently cleared, clearing is complete, and meanwhile, model samples of different sizes can be fixed and clamped.

The invention relates to an efficient heat-conducting heat pipe reactor fuel element. The fuel element comprises a nuclear fuel, a cladding pipe, a heat pipe and a heat conduction ring. The cladding pipe comprises an inner wall and an outer wall which are arranged in a sleeved manner, the heat pipe is arranged in an inner hole of the inner wall, and the heat conduction ring sleeves the heat pipe and is located between the heat pipe and the inner wall. A plurality of axial heat conduction plates and a plurality of radial heat conduction plates are arranged between the inner wall and the outer wall of the cladding pipe, the cladding pipe is divided into a plurality of fuel areas used for being filled with the nuclear fuel by the axial guide plates and the radial guide plates, and stress release grooves are formed in the axial guide plates. According to the efficient heat-conducting heat pipe reactor fuel element, the nuclear fuel is arranged in the cladding pipe, and nuclear heat generated by operation is transferred to the heat pipe through the wall of the cladding pipe; the axial and radial heat conduction plates are arranged in the cladding pipe and are used for assisting efficient heat conduction; the heat pipe is arranged in the center of the fuel element and is used for guiding heat of a reactor core out of the reactor; and the heat conduction ring is arranged between the heat pipe and the cladding pipe, and contact heat transfer between the heat pipe and the cladding pipe is achieved.

The invention discloses a testing device and a testing method for Internet of Things semiconductor equipment. The invention belongs to the technical field of semiconductor equipment detection. The testing device comprises a testing host; a control panel is arranged on the test host; the lower end of the test host is fixedly connected with a base; a main control board is installed in the test host;a pair of parallel clamping plates is arranged on the upper side of the base; the clamping plates are positioned at one side of the test host; a main sliding groove is dug in the upper end of the base; and the lower end of eachclamping plate is slidably connected into the main sliding groove. According to the invention, a plurality of semiconductor equipments are stacked together to form a semiconductor equipment group; the semiconductor equipment group is scanned and imaged through the laser imaging technology, so that the surface flatness of multiple pieces of semiconductor equipment can bedetected at one time, multiple pieces of semiconductor equipment which do not meet the requirements can be quickly and accurately detected at one time, and the detection efficiency of the semiconductor equipment is greatly improved.

The invention discloses a radial-axial bi-directional asynchronous package-type bionic corn husker. The radial-axial bi-directional asynchronous package-type bionic corn husker comprises a peeling mechanism, a transmission mechanism, a rack and a feeding mechanism. The peeling mechanism is fixed in front of the upper part of the rack. The feeding mechanism is fixed behind the upper part of the rack. A peeling space is formed by the bottom of an axial peeling copying roller, the exterior of a variable copying press block, the upper part of a copying conveyer belt and the exterior of a radial peeling ribbed roller. The axial and reverse torque to corn ear is formed by the copying conveyer belt and the axial peeling copying roller, and the radial torque to the corn ear is formed by the variable copying press block and the radial peeling ribbed roller. The variable copying press block is capable of, according to the section diameter of the corn ear, automatically adjusting the positive pressure. A narrower space is formed by a directional feeding roller and a standing plate, and a larger space is formed by the directional feeding roller and an arc plate. While the corn ear is loaded to be rotated by the directional feeding roller, the corn ear is directionally captured and unloaded by using the change of the space geometry dimension. The radial-axial bi-directional asynchronous package-type bionic corn husker is capable of improving the peeling efficiency, and reducing the extrusion damage and collision damage of corn grains.

The invention belongs to the technical field of lithium batteries, and particularly relates to a fireproof and explosion-proof lithium battery device applied to fire fighting equipment, which comprises a shell, a top cover and a battery cell, a group of battery cells are uniformly distributed in the shell; an isolating ring is connected between the adjacent battery cells, a first contact and a second contact are arranged in the isolating ring, and the first contact and the second contact are respectively connected with the side wall of the battery cell on the corresponding side; the second contact is connected with the positive electrode of the battery cell through a wire, and the first contact is connected with the negative electrode of the battery cell in series through a first wire, a buzzer and a second wire. The first contact and the second contact are driven to make contact and the buzzer is triggered to give an alarm sound when the battery cell is seriously swelled, so that the overhaul times of the shell are reduced, meanwhile, the maintenance timeliness of the battery is improved, the normal working state of the battery is ensured, and the safety of the battery in the using process is ensured.

The invention discloses an anti-interference section laser scanning imaging device for rail line fault diagnosis, and relates to the technical field of rail line section laser scanning imaging, in particular to a foundation, a stock rail, a mounting sliding seat, an imager shell, a protective plate and a sealing plate. A stock rail is connected to the upper surface of the foundation through bolts,the installation sliding base covers the outer side of the upper portion of the stock rail, a matching groove is formed in the lower portion of the sliding groove, profiling cotton adheres to the inner side of the sliding groove, the imager shell is arranged on the outer side of one side of the upper edge of the installation sliding base, and the protection plates are installed on the two sides of the imager shell respectively. The sealing plate is arranged on one side of the bottom edge of the imager shell. The anti-interference section laser scanning imaging device for rail line fault diagnosis is easy to install, fix and disassemble, can realize sealing, can perform rapid scanning corresponding to the section of the rail, and cannot be damaged by clamping and pressing due to dead weight when being installed on the rail.

The invention discloses a flexible self-adaption petroleum pipeline ball valve. The flexible self-adaption petroleum pipeline ball valve structurally comprises a valve body, a flexible ball, a seal ring, a shaft, a driver, a self-adjusting mechanism and a hand wheel. The flexible ball is arranged in the valve body. The seal ring is arranged between the flexible ball and the valve body. The top ofthe flexible ball is connected with the driver through the shaft. The side face of the driver is connected with the hand wheel. The self-adjusting mechanism is arranged above the driver and connectedwith the shaft. The flexible ball is composed of a ball shell, an elastic sheet, a connecting column, an ejection mechanism and a runner. The ball shell is arranged in the valve body and provided withthe penetrating runner, the connecting column is connected between the runner and the ball shell, the runner is provided with the elastic sheet, the part between the elastic sheet and the ball shellis a cavity, and the ejection mechanism is arranged in the cavity and fixedly connected with the ball shell. The flexible self-adaption petroleum pipeline ball valve has the beneficial effects that when petroleum is heated and expanded, the volume is enlarged for reducing extrusion damage to the ball, static electricity increasing under the heating situation is avoided, and safety is improved.

A drought-resistant sugarcane smash-ridging cultivation planting method includes steps: (1), preparing soil of a parcel according to a cultivation mode of alternating narrow-row smash-ridging soil loosening and wide-row zero tillage, wherein narrow row width is 0.8-1m, smash-ridging soil loosening depth 50-60cm, and wide row width is 1.5-2.0m; (2), planting two ridges of sugarcane in narrow rows according to a polygerm section or a single-row single-germ section, and enabling a distance of each meter of each ridge to have 8-10 sugarcane germs; applying base fertilizer before soil preparation or seeding; re-covering broken soil after seeding for 3-5cm in thickness, and covering with mulching films according to needs; (3), inter-tilling, earthing up and fertilizing according to conventionalagronomic requirements, eradicating and turn-burying weed in wide rows or using a weeder to weed during intertillage; (4), harvesting according to conventional technical means or mechanically harvesting, and timely spraying pesticide for prevention and control according to disease and pest information. The method adopts the mode of alternating narrow-row smash-ridging U-shaped soil loosening and wide-row zero tillage, disturbance to the cultivated land soil surface is reduced, a planting and resting cultivation area is created, and the sugarcane is more drought-resistant.

The invention provides a hydraulic fork truck. Antiskid components on the hydraulic fork truck are convenient to replace, impacting damage and crushing damage on the antiskid components when objects are inserted and taken can be reduced simultaneously, and the service lives of the antiskid components are prolonged. The hydraulic fork truck comprises a hydraulic fork truck part; a plurality of grooves uniformly distributed in the length direction of a truck plate are formed in the truck plate of the hydraulic fork truck part; a rubber block and a buffering mechanism are arranged in each groove;each buffering mechanism is used for exerting the buffering effect after each rubber block is under the pressure; each buffering mechanism comprises an upper housing body, a lower housing body, springs, guide columns and guide holes; each upper housing body and each lower housing body movably sleeve with each other; the springs are arranged in each lower housing body and exert the buffering effect; the guide columns are arranged in each lower housing body; the guide holes fitting with the guide columns are formed in the bottom of each upper housing body; the springs sleeve the guide columns;the lower ends of the springs are bonded with the inner bottom surface of each lower housing body; the upper ends of the springs are bonded with the bottom of each upper housing body; each rubber block is detachably fixed to the upper surface of each upper housing body through bolts; a supporting column is arranged in each lower housing body; and an illuminating device is arranged on the truck plate of the hydraulic fork truck part further.

The invention belongs to the technical field of AOI technology application, and particularly relates to a data monitoring method applied to AOI detection. A monitoring machine used in the method comprises a workbench, a conveying rotary ring and a fixing block. The upper surface of the workbench is rotationally connected with a conveying rotary ring. The inner arc surface of the conveying rotary ring is fixedly connected with a gear ring; a gear is rotatably connected to the interior of the workbench; the lower surface of the gear is fixedly connected with a first motor; fixing blocks which are uniformly arranged are arranged on the upper surface of the conveying rotary ring; and a PCB is arranged above the fixing block. AOI detection of the PCB is effectively realized, the detected PCB is randomly monitored, the inaccurate detection data is avoided, the problem of batch detection can be effectively avoided when the first AOI detector has equipment problems, and the problem detection accuracy of bad PCBs is improved through secondary detection of unqualified PCBs.

The invention provides a flexible supporting and clamping method and device for the inner wall of a honeycomb material. The device comprises a vibration table, a conversion plate, a liquid storage cavity and a grating plate, the bottom of the liquid storage cavity is connected with the vibration table through the conversion plate, the liquid storage cavity is used for containing a non-Newtonian fluid injected in the machining process, and the grating plate is matched with the honeycomb material and the liquid storage cavity and is arranged at the bottom of the liquid storage cavity. On one hand, the grating plate is used for supporting and positioning the honeycomb material, on the other hand, the grating plate is matched with the honeycomb material to form a relative movement trend, vibration energy is transmitted to the non-Newtonian fluid in the liquid storage cavity, and the honeycomb material is fixed after the non-Newtonian fluid is subjected to shear phase change. The vibration table is used for increasing horizontal vibration of the honeycomb material, on one hand, non-Newtonian fluid phase change fixing of the honeycomb material is achieved through the shear thickening characteristic of the non-Newtonian fluid, and on the other hand, intermittent contact of the honeycomb material and a cutter in the horizontal direction is achieved; and lattice deformation and crushing damage caused by buckling of the honeycomb material are reduced.

The invention provides a leaf vegetable harvester capable of harvesting leaf vegetables with roots. The leaf vegetable harvester is provided with a gasoline engine, a traveling crawler and an operation bench. The leaf vegetable is supported by a vegetable supporting rod, then a vegetable digging tooth acts on the root of the vegetable, the vegetable can be dug up together with the root, then the vegetable is conveyed to a vegetable stripping plate by the vegetable digging tooth, an opening matched with the vegetable digging tooth is designed at the front part of the vegetable stripping plate,then the vegetable is clamped and stripped out from the vegetable digging tooth through the opening of the vegetable stripping plate, then the vegetable is conveyed to an inclined conveying tooth of an inclined conveying mechanism by a horizontal conveying tooth of a horizontal conveying mechanism, and finally the vegetable is sent into a vegetable basket. The leaf vegetable harvester disclosed bythe invention can pull the leaf vegetables up with the roots, so that orderly conveying is achieved, the risk that the leaf vegetables are extruded and damaged is reduced, and edible parts of plantsare better kept.

The invention discloses a transfer device used for high-low-pressure shell sale. The transfer device comprises a base. First grooves are symmetrically formed in the two sides of the bottom of the base. Hydraulic cylinders are installed at the tops of the inner sides of the first grooves. The output ends of the hydraulic cylinders are connected with connecting sleeves through piston rods. A first vertical board and a second vertical board are symmetrically arranged on the left side and the right side of the top of the base. Supporting boards are arranged between the first vertical board and thesecond vertical board. First springs are arranged in the connecting sleeves, so that a shock absorption effect is good, intense oscillation generated in the transporting process is avoided, and a buffering effect is good. The ends of second springs are connected with pull rods, the ends of the pull rods extend into the supporting boards, the ends of the extend-in parts are connected with clampingboards, the pull rods are pulled forwards and backwards, placed high-low-pressure shells can be conveniently fixed again, the use functionality of the transfer device used for high-low-pressure shellsale is greatly improved, the use effect of the transfer device is guaranteed, and the transfer device is suitable for being widely popularized.

The invention discloses a burr grinding device and grinding method for speed reducer shaft machining. The burr grinding device for speed reducer shaft machining comprises a grinding table, a threadedrod, a motor and a speed reducer shaft body. A fixed block is fixed to the upper surface of the grinding table. A push block is arranged on the surface of the threaded rod. A link rod is mounted on the surface of the push block. A supporting rod is fixed to the upper surface of the grinding table. A limiting rod is fixed to the upper surface of the grinding table. The motor is fixed to the upper end of the limiting rod. A turning wheel is fixed to the output end of the motor. A fixed frame is fixed to the surface of the supporting rod. A lifting block is mounted on the surface of the fixed frame. A linkage block is fixed to the surface of the left side of the lifting block. The burr grinding device for speed reducer shaft machining is provided with an abutting block, the threaded rod, a connecting rod and the link rod and can tightly fix the two ends of a speed reducer shaft without affecting grinding on burrs on the surface of the speed reducer shaft, implements thorough grinding on the burrs on the surface of the speed reducer shaft and improves the quality of the speed reducer shaft.

The invention discloses a traditional Chinese medicine insole for treating calcaneodynia. The traditional Chinese medicine insole comprises an insole bottom layer and an insole upper layer, wherein the edge of the insole bottom layer is upwards turned up; the foremost end of the insole bottom layer is fixedly connected with a front baffle part; the rearmost end of the insole bottom layer is fixedly connected with a back baffle part; the insole upper layer is bonded on the insole bottom layer; a first groove is formed in a position corresponding to the front foot sole; a second groove is formedin a position corresponding to the back heel; and a traditional Chinese medicine bag is arranged in the first groove and the second groove. The traditional Chinese medicine insole has breathable andcomfortable effects; the traditional Chinese medicine bag positioned in the front foot sole and the back heel can recover Qi and blood circulation; and the local blood operation is improved, so that the goal of effectively treating the calcaneodynia is achieved.

The invention discloses a double-lower limb synchronous-swing type rehabilitation motion vehicle seat. The double-lower limb synchronous-swing type rehabilitation motion vehicle seat is mainly used for a double-lower limb synchronous-swing type training rehabilitation vehicle and a bicycle race. With the double-lower limb synchronous-swing type rehabilitation motion vehicle seat, the two legs of auser can move more flexibly, friction force between the inner sides of thighs and the vehicle seat is reduced, power conversion is improved, hip hurt is reduced, and people feel comfortable. The vehicle seat is divided into two parts which are symmetrical and independent in the left-and-right direction compared with an original vehicle seat, and the two parts are installed on the left side and the right side of the upper end of a supporting tube respectively; when a rider sits on the vehicle seat and treads pedals of a vehicle with double feet through up-and-down alternation, the left part and the right part of the vehicle seat will swing with the two legs of the person through up-and-down alternation and are always matched with the left and right thighs of the body of the person, and therefore rubbing between the vehicle seat and the thighs is basically eliminated. The double-lower limb synchronous-swing type rehabilitation motion vehicle seat has the advantages that the two lower limbs are moved when the person sits on the vehicle seat, the gravity center of the body will seldom change, energy loss is small, people feel comfortable, descending motion of the thighs is easy, and power conversion is quite easy.

The invention discloses a flowerpot fixing device for urban greening engineering. The flowerpot fixing device for urban greening engineering comprises a base, wherein a plurality of placement groovesare formed in the top of the base; clamping plates are separately arranged on two sides of each placement groove; two sliders are symmetrically distributed on the bottom of each clamping plate; a plurality of chutes which are distributed in parallel are formed in the top of the base; a limiting plate is arranged on one side of each clamping plate; a threaded hole is formed in one side of each limiting plate in a penetrating manner; a knob screw is arranged in each threaded hole; a water collecting groove is formed in the top of each placement groove; and a drainage ditch is arranged on the outer side of each water collecting groove. By arrangement of the clamping plates, the limiting plates and the knob screws, flowerpots are placed in the placement grooves, the clamping plates slide to enable the placement grooves to be matched with the flowerpots, each knob screw rotates to enable the two corresponding clamping plates to be attached to clamp the corresponding flowerpot, a rubber anti-sliding block is arranged in each placement groove, and cooperates with an anti-sliding coating on the surface of the corresponding clamping plate, the force of friction between the clamping plates as well as the placement grooves and the flowerpots can be increased, therefore, the flowerpots can be stable, and a buffer effect can further be achieved.

The invention discloses a cherry express whole course cold chain process. The cherry express whole course cold chain process comprises the following steps: 1. harvesting; 2. grading, packing and pre-cooling; 3. packing, loading and transportation; 4. last kilometer transportation; and 5. receiving, acceptance and recovery. By adopting the cherry express whole course cold chain process, the workingtime of phase change materials in an incubator can be delayed by standardized pre-cooling operation, moisture assurance of absorbent materials, strict control and refrigeration transportation, so that the whole course cold chain of express transportation is achieved. The advantages of the cherry express whole course cold chain process are as follows: it can be ensured that extrusion damage to cherries in a package is reduced, a high humidity and dew-free environment in the package can be provided; not only can the field pre-cooling be provided, but also the connection between field pre-cooling equipment and a refrigerated transport vehicle can be provided; and at the same time, the working time of the phase change materials in the transported package can be postponed to the last kilometerperiod, so that the express whole course cold chain is achieved.

The invention belongs to the technical field of agricultural machinery, and provides a small particle size seed air-suction hole-wheel type precision hole sowing seed metering device which comprises abox body (1). A seed throwing funnel (4) is arranged at the bottom of the box body (1), the box body (1) is internally provided with a seed metering wheel (2), the seed metering wheel (2) is internally provided with a negative pressure zone (24) communicating with the seed metering wheel (2), the negative pressure zone (24) is internally provided with a seed pushing wheel (5), and the seed pushing wheel (5) is in meshing transmission with the seed metering wheel (2). Gravity and air suction are combined, so that the seed filling capacity, seed filling efficiency and reliability of seed filling of the seed metering wheel are improved; meanwhile, the seed metering wheel can adapt to the requirements of high-speed seed metering by adjusting the magnitude of negative pressure, and the workingefficiency of the seed metering device is improved; and meanwhile, the seed damage rate can be effectively reduced.

The invention provides a film-cutting machine structure which can ensure evenly strength receiving when cutting the film, thereby reducing the amount of incompact crystal grains on a machine disc after sticking a blue film on a crystal ring, then reducing the pressing damage of the crystal caused by incompact and improving the yield. The film-cutting machine structure comprises a base seat and a central rotating shaft, the central rotating shaft is vertically plug-in mounted in the centre of the base seat, and the film-cutting machine structure is characterized in that a film sliding knife and a film sliding knife cross shaft are also included, a penetrating radial hole is formed on the upper end of the central rotating shaft, the film sliding knife cross shaft penetrates the radial hole and is arranged in parallel with the flat surface of the base seat, the central of the top portion of the central rotating shaft is opened with a vertical limit threaded hole, the limit threaded hole is communicated with the radial hole, and a limit threaded rod is connected with the limit threaded hole, the lower end of the limit threaded rod is pressed on the film-cutting knife cross shaft, the film-cutting knife is vertically arranged on the flat surface of the base, and one end of the film-cutting knife cross shaft penetrates the radial hole formed on the upper end of the film sliding knife.