136results about How to "Easy to move down" patented technology

The invention discloses an automatic soft glove packaging machine, belonging to the field of automatic soft glove packaging equipment. The automatic soft glove packaging machine comprises a glove boxing mechanism, a packaging box unfolding mechanism and a box insertion mechanism which are sequentially connected, and is characterized in that an empty box bin (45) for storing a folded box body is fixed above the packaging box unfolding mechanism; the bottom of the empty box bin (45) is open, and a support mechanism is arranged on the side of the bottom; the side of the folded box is placed on the support mechanism; the packaging box unfolding mechanism comprises a bottom sucker (54) and a side sucker (56); the lower end of the bottom sucker (54) is connected with a vertical lifting cylinder (55); the side sucker (56) is arranged on one side of the bottom sucker (54) through a turnover mechanism. With the self-weight of the folded box body, the bottom sucker (54) takes the folded box body always at the same height; the side sucker (56) is turned over relative to the bottom sucker (54) to unfold the packaging box. The machine disclosed by the invention has the advantages of very simple structure, low cost, convenience in use, reliable operation and the like.

The invention discloses a method for controlling oil well bottom water coning by foam. In the method, a mass of foam is injected at the oil-water boundary of an oil well so that a foam plugging area is formed. In the technical technology of controlling oil well bottom water coning by foam in the invention, a mass of foam is injected at the oil-water boundary of the oil well so that a stable foam plugging band is formed. The injected foam has the characteristic of selective water plugging that the foam is broken when meeting oil and is stable when meeting water, so that the foam is comparatively stable at the oil-water boundary and is not easy to be broken and raising of bottom water can be efficiently plugged; and at an oil reservoir, the foam stability becomes weakened due to damage of the oil to the foam, and the foam is easy to be broken, but the output of crude oil in the oil layer is not influenced.

The invention discloses a method for reducing an effect of base plane dislocation on a silicon carbide epitaxial layer. The method comprises the steps of: carrying out interface high-temperature annealing processing on a silicon carbide substrate to promote a BPD-TED inversion point to move downward and away from a heavily-doped buffer layer surface; adding a gradient buffer layer to reduce a concentration difference between a heavily-doped buffer layer and the epitaxial layer, repairing a heavily-doped buffer layer interface etched by a high-temperature hydrogen gas; and performing surface etch pit repairing on the heavily-doped buffer layer by utilizing the feature of lateral epitaxial growth enhancement in a low-speed epitaxial mode, and improving surface quality of the subsequent epitaxial layer. The method can reduce the base plane dislocation inversion point below the heavily-doped buffer layer interface, effectively decreases the probability of deriving a stacking fault defect by base plane dislocation under the action of a high current in the epitaxial layer, and adopts the process compatible with the conventional epitaxial process.

The invention discloses a method for transplanting arbor in saline-alkali soil. The method for transplanting arbor in saline-alkali soil comprises the following steps of: (1) surveying and setting out; (2) cutting tree roots and shaping and pruning tree crowns; (3) wrapping trunks; (4) digging earth-balls, modifying lumps, tidying bottoms and packaging; (5) loading, unloading and transporting trees; (6) starting digging tree pits; (7) laying and arranging an isolation layer, a water permeable pipe and an exhaust pipe; (8) back filling the tree pits with planting soil; (9) covering the tree pits; and (10) conducting post-conservation and management of the trees. According to the method for transplanting the arbor in the saline-alkali soil, not only can returning of saline and alkali be controlled, the groundwater level can be reduced, but also a comfortable growth environment can be provided for the transplanted large-scale arbor so that the arbor can be prevented from invasion of the saline and alkali; besides, the soil of the saline-alkali soil can be improved locally, so that the growth of plants and the continuous improvement of the soil quality of the saline-alkali soil are facilitated.

The invention relates to a succulent planting greenhouse which comprises a plurality of arch-shaped structures arranged in single rows, inner-layer plastic films and outer-layer plastic films. The inner-layer plastic films and the outer-layer plastic films are arranged on the arch-shaped structures, each arch-shaped structure comprises a lower arch-shaped beam located on the lower side and an upper arch-shaped beam located above the lower arch-shaped beam, and an arch-shaped through hole is formed between each upper arch-shaped beam and the corresponding lower arch-shaped beam. A plurality of connected connecting rods are evenly arranged on the inner edges of the upper arch-shaped beams of the adjacent arch-shaped structures, and the connecting rods are sleeved with a plurality of rollers. The inner-layer plastic films are arranged in the arch-shaped through holes, the outer-layer plastic films are arranged on the upper sides of the upper arch-shaped beams, and the rollers are provided with heat preservation layers capable of sliding on the rollers. End walls are arranged on the arch-shaped structures at the two ends, a draught fan is arranged on one end wall, and a water curtain is arranged on the other end wall. The succulent planting greenhouse has the advantages of being good in heat preservation effect and smooth in ventilation.

The invention discloses a water conservancy project intelligent regulation control system and regulation control method for guaranteeing water supply safety of a river mouth. The system comprises an environment element in-situ monitoring module, an environment element information management control module, an upstream remote regulation control module and a downstream local intelligent emergency module, wherein the environment element in-situ monitoring module is used for monitoring hydrology, water power and water environment elements of key positions of an upstream reservoir and a downstream river mouth in real time; the environment element information management control module is used for managing and controlling hydrology, water power and water quality element information of different sources and different types; the upstream remote regulation control module is used for implementing long-distance accurate optimization scheduling on the upstream reservoir in a water supply safety sensitive period of the river mouth to improve overall water supply safety of the downstream river mouth; and the downstream local intelligent emergency module can implement targeted emergency measures in the downstream local position through intelligent response for the implementation effect of the upstream remote regulation control module to ensure water supply safety of emphatically protected water areas of the river mouth.

The invention relates to the technical field of medical apparatuses and instruments and discloses a cleaning device for nursing in the pediatric department. The cleaning device comprises two movable supports. According to the cleaning device for nursing in the pediatric department, through arrangement of an electric push rod and a bathing operation table arranged on the top of the electric push rod, convenience is provided for the electric push rod during work to push the bathing operation table to move, and the situation that the bathing operation table is adjusted to a suitable height according to the level of warm water in a bath tub and the body height of an infant is achieved. Sliding slots are formed in a left adjusting ring, and sliding connecting rods move back and forth in the sliding slots and are inserted into fastening grooves formed in a right adjusting ring, so that convenience is provided for threaded adjusting rods in threaded connection with the right adjusting ring tobe in threaded connection with the interiors of threaded holes formed in the sliding connection rods, adjustment of the length of the sliding connection rods according to physical development conditions of the infant is facilitated, adjustment of the cleaning device for nursing in the pediatric department according to the physical development conditions of the infant is facilitated, and meanwhilethe safety performance of the cleaning device is also improved.

The invention provides adjustable tree whitening equipment which comprises a tank body, a lifting device and a spraying device, wherein the lifting device is fixed with the tank body and is of a leadscrew transmission structure; the spraying device is fixed on a lead screw moving pair; a protective device is arranged at the bottom of the spraying device, and comprises a plurality of shielding plates fixed at the bottoms of spraying brackets; every two adjacent shielding plates are fixedly connected to form a circular-arc structure; conical protective plates of which the quantity is the same as that of the shielding plates are rotationally arranged at the bottoms of the shielding plates; rotating wheels are arranged at the peaks of the conical protective plates; fixing parts are arranged at the middles of the inner sides of both the conical protective plates and the shielding plates; and fixing holes and connecting holes are connected through elastic parts. According to the adjustabletree whitening equipment, other things surrounding a tree trunk can be isolated by the inclined conical protective plates in the downward moving course of the spraying brackets; the spraying bracketscan be conveniently moved downward; and meanwhile, the entire spraying operation of inclined spraying heads can be completed without moving the spraying brackets to be close to the ground.

Relating to the technical field of garden equipment, the invention discloses garden sampling equipment and a working method thereof. The equipment includes an outer frame, a top frame is fixedly connected to the left side at the top of the outer frame, the bottom of the top frame inner wall is in sliding connection with a load plate, the left side of the load plate runs through the top frame and extends to the outside of the top frame. The garden sampling equipment based on the Internet of Things facilitates downward movement of devices, so that a sampling device can well enter the soil without manual operation, the labor amount of people is alleviated, soil sampling becomes convenient, and the sampling process is stable, at the same time the equipment is convenient for taking out of the sampled soil, can well insert devices into the ground for fixation, prevents device collapse in the sampling process, improves the device stability, also can achieve timely preliminary analysis of thecollected soil samples, and subjects the analysis result to remote transmission, is convenient for testers to know the soil information in time, and facilitates the arrangement of the follow-up work.

The invention discloses a soil conditioner and a preparation method thereof and relates to the field of soil conditioners. The soil conditioner is prepared from the following raw materials in parts byweight: 10 to 15 parts of straw particles, 40 to 45 parts of fermented cow dung, 3 to 7 parts of medical stone, 2 to 5 parts of dolomite powder, 5 to 10 parts of modified attapulgite, 2 to 5 parts ofdesulphurization gypsum powder, 4 to 9 parts of seafood shell powder, 5 to 10 parts of plant ash, 4 to 9 parts of sweet potato waste, 4 to 9 parts of fermented residue, 1 to 3 parts of shiitake mushroom extract, 1.5 to 3.5 parts of plant growth agent, 2 to 5 parts of amino acid salt, 1.5 to 3.5 parts of ferric chloride, 3 to 7 parts of ammonium dihydrogen phosphate, 2 to 5 parts of calcium superphosphate and 0.5 to 1.2 parts of microorganism acting bacteria. According to the soil conditioner, the soil fertility can be improved and a soil caking phenomenon is improved; the breathability, seepage, fertilizer-keeping and water retention capabilities of salt-alkali soil are remarkably enhanced; the physical-chemical properties of the soil are effectively improved.

The invention relates to the related technical field of metal machining numerical control machine tools, in particular to a metal machining numerical control machine tool convenient to maintain. The machine tool comprises a workbench, wherein supporting legs are inserted in the corners of the bottom of the workbench respectively, a supporting base is fixedly connected to one side of the top of the workbench, a lifting mechanism is arranged on the inner side of the supporting base, a connecting frame is arranged at the top of the lifting mechanism, an auxiliary mechanism is arranged on the inner wall of the connecting frame, the connecting frame is in an L shape, a supporting column is fixedly connected to the bottom of the connecting frame, a disc is rotationally connected to the position, close to the lower portion, of the outer side of the supporting column in a sleeving mode, a plurality of storage through holes are annularly formed in the inner side of the disc at equal intervals, and elastic mechanisms are disposed on the inner sides of the plurality of storage through holes respectively. According to the machine tool, a drill bit of the metal processing machine tool can be repaired and maintained, the drill bit can be conveniently replaced and rapidly installed, and then machined metal filings can be collected to be conveniently recycled in the later period.

The invention discloses an anti-sinking building concrete pipe pile and an installing method. The anti-sinking building concrete pipe pile comprises a concrete pipe pile body, and the bottom of the concrete pipe pile body is fixedly connected to a pile tip. According to the anti-sinking building concrete pipe pile and the installing method, a damping shock absorber is placed on a pile nail, then a adjusting frame is placed on the surface of an inner wall steel pipe, installation is completed in cooperation with a screw rod, then a pile cap is placed on the top of the concrete pipe pile body, hammering operation can be carried out, the phenomenon that the pipe pile sinks after an existing concrete pipe pile is constructed is avoided, the problems that the pipe pile sinks due to dead weight and is organized to sink without a resistance structure on the surface, construction precision and construction safety are affected, meanwhile, limiting structures during construction are mostly prefabricated, relative adjustment cannot be conducted during site construction, construction efficiency and construction precision are reduced, and the construction progress is affected due to the fact that the prefabricated structure cannot be adjusted due to the complex and changeable construction environment are solved.

The invention discloses a rail-type shot blasting cleaning machine, which comprises a mounting plate, two symmetrically arranged support rods are arranged on the lower surface of the mounting plate, a PLC controller is provided in the middle of the side of the support rods, and a PLC controller is arranged on the inner surface of the support rods. The upper end is provided with a guide rod and a screw rod. The guide rod is located on the upper side of the screw rod. The left end of the screw rod is fixedly connected with the output shaft of the stepper motor through a coupling. The stepper motor is fixedly connected with the support rod through the mounting seat. As for the clip, the lower end of the clip is provided with two symmetrically arranged telescopic rods, and the fixed end of the telescopic rod is fixedly connected with the fixed plate of the clip. The track-type shot blasting machine can quickly disassemble and install the clips, and can fix multiple workpieces at the same time, saving time and improving work efficiency, and the first electric telescopic rod can push the support plate to move down, and the second The electric telescopic rod can push the cleaning barrel to move upwards, which is convenient for shot blasting of workpieces and has strong practicability.

The invention relates to the field of detection of underwater buildings, in particular to a device for detecting cracks of an underwater building. A lifting assembly is arranged on a fixed base fixedly connected on a ship body, a connecting column is fixedly connected on the bottom of a movable plate in transmission connection on the lifting assembly, and a mounting cavity is arranged on a rectangular base fixedly connected to the bottom end of the connecting column; a first motor is fixedly connected on the top inner wall of a ring-shaped slot formed in the top inner wall of the mounting cavity, a rotary disc is fixedly connected on the output shaft of the motor, an electric push rod is fixedly connected on the bottom of the rotary disc, a connecting plate is fixedly connected on the output shaft of the electric push rod, and a fixed plate is fixedly connected on the bottom of the connecting plate; and the bottom of the fixed plate extends to a position below the bottom of a rectangular base; detectors are fixedly connected at the two sides of the fixed plate; and an anti-impact assembly is arranged on the rectangular base. The device solves the problems that a conventional detector has a detection dead corner, is liable to have a detection leakage phenomenon, and is easily damaged as a result of impact of water flow.

The invention discloses a forming operating mechanism for a steel reinforcement cage with protecting layers and a method. The operating mechanism comprises a main reinforcement positioning frame usedfor positioning the positions of main reinforcements, multiple stirrup suspension brackets which cooperate with the main reinforcement positioning frame and are used for supporting suspension stirrupsand the multiple protecting layers which are arranged outside the steel reinforcement cage main reinforcements in a sleeving manner in the length direction of the steel reinforcement cage. The methodcomprises the steps of 1 arranging the stirrup suspension brackets, 2 suspending the stirrups, 3 inserting the first-layer main reinforcements, 4 moving the stirrups on the stirrup suspension brackets, 5 taking out the stirrup suspension brackets, 6 fixing the stirrups and the first-layer main reinforcements, 7 positioning and bundling the main reinforcements within the height range of top supporting steel beams, 8 positioning and bundling the remaining main reinforcements and 9 installing the protecting layers. According to the forming operating mechanism for the steel reinforcement cage with the protecting layers and the method, the stirrups can be easily supported and are skillfully matched with the first-layer main reinforcements, the positions of the main reinforcements are positioned through limiting of positioning rods and the stirrups, positioning rod supporting parts are extracted out to enable the positioning rods to fall down, and it is guaranteed that the spacing distanceamong the main reinforcements is invariable through installation of the protecting layers.

The invention relates to the technical field of routers for the Internet. The invention further discloses stabilizing equipment for guaranteeing router signals for the Internet. Including a housing, asocket is formed in the surface of the shell; signal rods are movably connected to two sides of the socket; the surface of the signal rod is movably connected with a spring plate; a sliding groove isformed in the spring plate; the surface of the chute is slidably connected with a coil; a telescopic rod is movably connected to the surface of the coil, an air bag is movably connected to the surface of the spring plate, an extension frame is movably connected to the surface of the air bag, a screw is movably connected to the surface of the extension frame, a pressing plate is movably connectedto the bottom of the screw, an extension spring is movably connected to the upper end of the pressing plate, and a buffer spring is movably connected to the surface of the pressing plate. The spring plate stretches or contracts to drive the signal rod to swing left and right so as to compensate for signal deviation caused by unstable voltage, and therefore the effect that the contact direction ofthe signal rod is adjusted at any time according to the stability of current in the wire is achieved.

The invention discloses a disinfection cotton ball taking device which comprises a rubber bottom cover, a barrel body, a first strip-shaped groove, a second strip-shaped groove, a strip-shaped plate,a tooth groove, disinfection cotton balls, an external threaded hole column, a circular cover, a rubber ball, a catheter, a poking plate, an arc-shaped spring piece, a fixed pin, an arc-shaped hole, apush rod, a connecting rod and a circular block. The disinfection cotton ball taking device is simple in structure and convenient to operate and enables a user to timely take the disinfection cottonballs to disinfect an affected part of a patient, an ache of a wrist of the user caused by long-time clamping the disinfection cotton balls through a pair of tweezers is avoided, the plurality of disinfection cotton balls can be placed in one time, and all the disinfection cotton balls are wetted simultaneously. The rubber ball is mounted at the top of the catheter, the disinfection cotton balls in the barrel body are wetted using the rubber ball containing alcohol, and the disinfection of the patient by the user is facilitated. The length of the strip-shaped plate is consistent with the length of the poking plate, upward movement of the disinfection cotton balls caused by upward movement of the poking plate is avoided, and the next disinfection cotton ball can be poked and moved downwardsconveniently.

The invention discloses a binding operating mechanism for a reinforcement cage of a beam column of a building. The mechanism comprises a main reinforcement positioning rack for positioning a positionof a main reinforcement and a plurality of stirrup suspension brackets matched with the main reinforcing positioning rack for supporting and suspending stirrups. The stirrups of an appointed quantityare suspended between adjacent two supporting and positioning mechanisms by means of the stirrup suspension brackets, a first main reinforcement is inserted into a space between the bottom of a suspending main rod and a reinforcement cage bearing rod and then the stirrup suspension brackets are taken out from the main reinforcement positioning rack, so that the stirrups fall onto the reinforcementcage bearing rod. Large equipment for assistance is not needed through the first main reinforcement for supporting the reinforcement cage horizontally by the reinforcement cage bearing rod and the stirrups arranged out of the first main reinforcement in a sleeving manner. Limited by a positioning rod and the stirrups, the position of the main reinforcement is further positioned, so that the arranging positions among the main reinforcements are reliable and accurate without being calibrated. The positioning rod falls off by extracting a positioning rod supporting part. One supporting and positioning mechanism only needs one positioning rod to position the rest of main reinforcements besides the first reinforcement.

The intelligent water and fertilizer all-in-one machine comprises an outer barrel, and a feeding hopper and a water inlet pipe are installed on the two sides of the top of the outer barrel in a penetrating mode respectively; the device further comprises an irrigation pump, the irrigation pump is installed on the left side of the edge of the bottom of the outer barrel, a movable column is arranged in the installation column in a penetrating mode, the top of the installation column is sleeved with an inner barrel, and a guide ring is fixed to the outer side of the movable column through a transverse rod. And the recovery pump is installed on the right side of the edge of the bottom of the outer barrel, a heater is fixed to the inner wall of the evaporation box, and a vertical rod is installed at the center of the interior of the evaporation box through a bearing. According to the intelligent water and fertilizer all-in-one machine, water and fertilizer are uniformly mixed while being used through power of the irrigation pump, the trouble that water and fertilizer sediment needs to be treated is effectively avoided, energy is effectively saved, meanwhile, internal cleaning and water and fertilizer recycling are achieved through power of the recycling pump, efficient energy conservation and environment protection are achieved, and the situation that the underground environment is affected by water and fertilizer discharge is avoided.

The invention provides an automatic thirteen-edge sticking machine which comprises a whole device that comprises a working platform, wherein a first conveying belt and a second conveying belt are arranged on the working platform, pressing assemblies are arranged on the first conveying belt and the second conveying belt, each pressing assembly comprises a pressing roller, elastic assemblies are arranged between each pressing roller and the working platform, a cutting-off assembly is arranged between the first conveying belt and the second conveying belt, a gluing assembly is arranged on one side of the second conveying belt, a folding device is arranged on one side of the gluing assembly and comprises a bottom plate and two square folding through holes, the bottom plate is fixed to the working platform, the side wall of the bottom plate is slidably connected with a sliding block, a driving assembly is arranged on one side of the sliding block, a pressing plate is arranged at the bottomof the sliding block, a lifting assembly is arranged between the pressing plate and the sliding block, a pressing rod is fixed to the bottom of the pressing plate, an airflow assembly is arranged on the pressing rod, and the two square folding through holes are formed in the upper surface of the working platform. According to the automatic thirteen-edge sticking machine, a plurality of thirteen edges can be cut and folded at the same time, and the cutting size can be adjusted.

The invention discloses garden sampling equipment based on Internet of things. The equipment includes an outer frame. A top frame is fixedly connected to the left side of the top of the outer frame. An object carrying plate is slidingly connected to the bottom of the inner wall of the top frame. The left side of the object carrying plate passes through the top frame and extends to the outside of the top frame. The invention relates to the technical field of garden equipment. The garden sampling equipment based on the Internet of things facilitates the downward movement of the device to enablethe sampling device to enter soil well without manual operation, which reduces workload of people, facilitates the sampling of the soil to make a sampling process stable, facilitates the removal of the soil after the sampling is completed, facilitates the use for people, can be well inserted into the ground for fixing to prevent the device from collapsing during the sampling process, which improves the stability of the device, can preliminarily analyze collected soil samples in time and remotely transmits analysis results, helps test personnel to understand soil information in time, and facilitates the arrangement of subsequent work.

The invention relates to the field of felt processing equipment, in particular to a sound-absorbing felt processing equipment and processing technology. The sound-absorbing felt processing equipment comprises a bottom plate and a machine body, the machine body is fixedly connected with the bottom plate, the machine body is fixedly connected with a first support, and the first support is rotationally connected with a first synchronous belt. A mounting frame is fixedly connected to the position, at the discharging end of the first synchronous belt, of the first support, the mounting frame is detachably provided with a lower die plate, the lower die plate is provided with a discharging opening in a penetrating manner in the vertical direction, and the mounting frame is provided with a positioning assembly used for fixing sound-absorbing felt. The mounting frame is slidably connected with a lifting plate in the vertical direction, an upper die head is detachably arranged on the side, facing the discharging opening, of the lifting plate, the bottom plate is fixedly connected with a waste collecting frame, the waste collecting frame is rotationally connected with a waste collecting roller, and the waste collecting roller is provided with a fixing assembly used for fixing the sound-absorbing felt. According to the sound-absorbing felt processing equipment and processing technology, sound-absorbing felt finished products and sound-absorbing felt leftover materials are separated through the upper die head, the effect of conveniently separating the sound-absorbing felt finished products is achieved, and the sound-absorbing felt processing equipment and processing technology are beneficial to reducing the labor cost.

The invention discloses a novel contact-connection safety socket comprising a socket body, a first groove arranged on the lower portion of the socket body, and a second groove arranged on the upper portion of the socket body; the second groove is in a cone type with a big top and a small bottom; a limit stop block is arranged between the first and second grooves; a movably plate matched with the first groove is arranged below the limit stop block, and provided with a plurality of plug holes; the movable plate is connected with the socket body through a spring; the bottom of the first groove ishorizontally provided with a plurality of metal sheets having a gap; a conduction metal piece is arranged right above the gap, and connected with the movable plate through an insulation rod; the metal sheets in the socket are cut off, and the conduction metal pieces are realize a conduction effect when the plug plugs in, thus providing safe and reliable effects; the novel contact-connection safety socket can prevent children and adults from being shocked by electricity, is simple in structure, and easy to use.

The invention discloses ultrasonic medical auxiliary detection equipment. The equipment comprises a detection table, symmetrically-distributed universal wheels are fixedly installed on the periphery of the bottom of the detection table, hydraulic cylinders are fixedly installed on the periphery of the bottom of the detection table, a supporting disc is fixedly mounted at the bottom end of the hydraulic cylinder, the hydraulic cylinders are located on the inner sides of the universal wheels, and he left sideT of the top of the detection table is in threaded connection with a computer through screws. In the present invention, the universal wheels are fixedly installed on the periphery of the bottom of the detection table, so that the position of the detection table can be conveniently changed through the universal wheels and manpower is reduced, the hydraulic cylinders are fixedly installed around the bottom of the detection table, so that the hydraulic cylinders can drive the supportingdisc to move downwards conveniently and the supporting disc is supported on the ground, the universal wheels can be separated from the ground, so that the detection table is placed more stably, and afirst electric push rod is fixedly installed at the bottom end of the interior of the cavity, so that the first electric push rod drives a guide block to move downwards conveniently.

The invention discloses a sampling device suitable for water quality detection of a flowing water area in the technical field of water quality detection equipment, the sampling device comprises a mounting rack and a connecting rope, the sampling device comprises a sampling barrel fixedly connected with the outer wall of the bottom of the mounting rack, the sampling barrel is a hollow cylinder, and mounting plates are fixedly mounted on the upper side and the lower side of an inner cavity of the sampling barrel; rotating plates are rotatably mounted on the outer walls of the sides, close to each other, of the two sets of mounting plates, open holes are uniformly formed in the outer walls of the sides, close to each other, of the mounting plates and the rotating plates, the open holes in the two sides coincide, and the sampling barrel is opened up and down in the device, so that resistance borne by the sampling barrel entering water is reduced, and water can also penetrate through the sampling barrel, so that the probability of fluctuation of a sampling water area in the downward moving process of the sampling barrel is reduced, the probability of moving and mixing of water in the sampling area is reduced, the sampling device can accurately collect water samples of corresponding layers, and the detection accuracy is improved.

The invention discloses an extrusion type juicer which comprises a shell, a juice collecting cup and an extrusion device, wherein the upper end and the lower end of the shell are both opened; the lower end of the shell is in threaded connection with the juice collecting cup; the extrusion device comprises a pressing plate and a lift handle; the lifting handle is connected with the upper plate surface of the pressing plate; the pressing plate is arranged inside the shell and moves upwards and downwards along the inner wall of the shell; an extruding plate and a filtering net are sequentially arranged from top to bottom below the extrusion device inside the shell; conical bulges are formed in the upper surface of the extrusion plate; a plurality of through holes are formed in the extrusion plate. The extrusion type juicer is simple in structure, convenient to use, high in juice yield rate, low in manufacturing cost and good in filtering effect.

The invention discloses a portable diamond-shaped metal net. The metal net comprises a fixed frame and steel wires, wherein a movable frame is arranged on the right side of the fixed frame, pins are fixed at the lower ends of the movable frame and the fixed frame correspondingly, the upper end of the movable frame is connected with the fixed frame through a snap ring and a clamping block, the outer end of the clamping block is connected with a limiting groove through a limiting block, meanwhile, a pull ring is fixed to the top of the clamping block, the steel wires are arranged at the right end of the fixed frame, the outer ends of the steel wires are connected with the fixed frame and the movable frame through fixing blocks correspondingly, the middles of the steel wires are connected with the steel wires through connecting pipes and connecting shafts correspondingly, the lower parts of the outer ends of the steel wires are connected with the fixed frame through connecting blocks andguide wheels correspondingly, meanwhile, the right ends of the connecting blocks are connected with sliding grooves through sliding sleeves correspondingly, and the inner parts of the sliding sleevesare connected with shaft columns through through holes correspondingly. According to the portable diamond-shaped metal net, the whole metal net can be conveniently stored and set up, and meanwhile, the rotation stability of the steel wires can be improved.