118results about How to "Realize up and down reciprocating motion" patented technology

A test tube cleaning device for university chemistry teaching based on the principle of counter-rotation, comprising an upper base plate and a lower base plate, the upper base plate and the lower base plate are connected by two reciprocating lifting devices; the upper base plate is embedded with several The first bearing, the inner ring of the first bearing is fixedly connected with a support sleeve, the top of the support sleeve is sealed, and a rubber pad is arranged on the inner side wall of the support sleeve; the upper part of the support sleeve is fixedly connected with the first driven Gears, the adjacent first driven gears mesh with each other, the first driven gear located on the far left meshes with the first driving gear, the first driving gear is arranged on the upper base plate through the first support shaft, and the first support shaft The top end is fixedly connected with the output shaft of the first motor; a plurality of second bearings are embedded on the lower bottom plate, and the inner ring of the second bearings is fixedly connected with a scrubbing body. The invention has the advantages of reasonable structural design, simple and convenient operation, good cleaning effect, etc., and has certain popularization and application value.

The invention relates to a vibration and abrasion test bench. A vibrating shaft input end is connected with an electromagnetic speed adjusting motor; the vibrating shaft is fixed at the bottom of a box body by a bearing; the center of the vibrating shaft is connected with an eccentric wheel; the eccentric wheel is matched and connected with a push rod by a pressure spring; the push rod is connected with the box body in a sliding way; the push rod is connected with a rotary disc by screw thread; a load spring is connected between the rotary disc and a sample plate; the sample plate is arranged at the top of the push rod; a top end is fixedly connected with a guide bench; the sample plate is connected with the guide bench in a sliding way; a cover plate is fixedly connected on the guide bench; a clamp is connected on the cover plate in a moveable way; the lower end of the clamp is fixedly connected with a standard sample; the top of the box body is connected with a rotary shaft; the lower end of the rotary shaft is connected with the clamp in a sliding way; and the input end of the rotary shaft is connected with the motor. The test bench disclosed by the invention can provide various compound environments with variable load, the presence of vibration, the absence of vibration and the like for studies of friction and abrasion between solids under the vibrating condition and various precise instruments can be arranged on the test bench for scientific researches. The test bench has good organization expandability.

The invention discloses a solid garbage treatment device for municipal construction, and belongs to the field of municipal construction. The solid garbage treatment device comprises a box body, wherein a garbage inlet is formed in the box body, a screen mesh and a crushing assembly for crushing garbage are arranged in the box body, a baffle is movably arranged at the bottom of the garbage inlet, the baffle is connected with a intermittent discharging assembly, the box body communicates with a circulation chamber, a circulation assembly is arranged in the circulation chamber, and a driving mechanism is further arranged on the box body. According to the device, the baffle can be driven to intermittently block the garbage inlet through rotation of a driven gear so as to realize intermittent blanking operation, so that the crushing assembly can be prevented from being blocked, and the purpose of improving the crushing effect is achieved; in addition, the circulation assembly with a first rotating shaft and spiral blades are arranged, garbage on the screen mesh can be circularly conveyed into the crushing assembly to be circularly crushed through rotation of the spiral blades, so that the crushing effect on the garbage can be further improved.

The invention discloses a dead weight type compaction device for road repairing of municipal construction. The dead weight type compaction device comprises a supporting plate, wherein supporting frames are respectively mounted on two sides of the upper end of the supporting plate; a crossbeam is mounted at the upper end of the supporting frame; a driving motor is mounted at the middle part of theupper end of the crossbeam; a driving shaft is mounted at the lower end of the driving motor; a driving gear is mounted in the middle part of the driving shaft; a rotating gear is meshed with each oftwo ends of the driving gear; a rotating shaft is mounted in the middle part of each rotating gear; a first worm is mounted at the lower end of a left side rotating shaft, and a first worm wheel is meshed with the left end of the first worm; a second worm is mounted at the lower end of a right side rotating shaft, and a second worm wheel is meshed with the right end of the second worm; fixing shafts are respectively mounted in the middle part of the first worm wheel and the middle part of the second worm wheel; a meshing gear is mounted at the middle part of the front end of each fixing shaft;and a lifting rack is meshed with the outer side of each meshing gear. According to the dead weight type compaction device disclosed by the invention, the up-and-down reciprocating movement of a compaction plate is realized, so that the compaction effect to road surfaces is realized by the gravity of the compaction plate, and the compaction requirements for different road surfaces are also met.

The invention relates to the technical field of building construction, in particular to a ground surface dressing device for building construction. The ground surface dressing device for building construction comprises a base. The top of the base is fixedly connected with a shell. A fixing rod is arranged on the right side of the inner portion of the shell. A crushing mechanism is arranged on thefixing rod. A polishing mechanism is arranged on the left side of the crushing mechanism. The left side of the shell is fixedly connected with a push rod. According to the ground surface dressing device for building construction, through arrangement of a first motor, a cam, a connection rod and a crushing press block, the crushing press block can conduct vertical reciprocating motion and impact and crush cement blocks protruding from the cement ground, so that the ground surface is dressed; through arrangement of a transmission device, a scraper blade and a crushed cement collecting box, it can be achieved that when the crushing press block moves upwards, the scraper blade pushes crushed blocky cement into the crushed cement collecting box, and then the polishing wheel can conveniently polish the ground; and through arrangement of a dustproof cover, an exhaust fan and a dust collection box, dust and chips can be removed, and dust pollution to the environment is reduced.

The invention discloses a drying device for traditional Chinese medicinal materials. The drying device for the traditional Chinese medicinal materials comprises a drying box. The inner wall of the drying box is in sliding connection with a placement net plate. The positions, corresponding to the lower portion of the placement net plate, of the inner wall of the drying box are fixedly connected with supporting annular plates. The upper ends of the supporting annular plates are fixedly connected with the lower end of the placement net plate through a plurality of buffering springs. The inner wall of the lower end of the drying box is fixedly connected with a first motor. An output shaft of the first motor is fixedly connected with a rotating rod. The end, far away from the first motor, of the rotating rod is rotationally connected with a push-pull rod. The end, far away from the rotating rod, of the push-pull rod is rotationally connected with the lower end of the placement net plate. The upper end of the drying box is fixedly connected with a stand column. The side wall of the stand column is fixedly provided with a second motor in an embedded manner. An output shaft of the second motor is fixedly connected with a rotary table. The surface of the rotary table is fixedly connected with an eccentric rod. According to the drying device for the traditional Chinese medicinal materials, the drying area can be greatly increased, and the drying efficiency of the medicinal materials is higher.

The invention discloses an adjustable reciprocating-type back pounding massaging bed, which comprises a bed body, wherein first moving blocks are arranged at two sides of the upper end of the bed body; moving frames are arranged at the upper ends of the first moving blocks; guide drums are arranged at the inner sides of the middles of the moving frames; guide springs are arranged at the bottom ends of the interiors of the guide drums; a lifting plate is arranged at the upper ends of the guide springs; second moving blocks are arranged at two sides of the lower end of the lifting plate; back pounding frames are arranged at the lower ends of the second moving blocks; pounding blocks are arranged at the lower ends of the back pounding frames; a rotating shaft is arranged in the middles of theupper ends of the moving frames; rotary cams are arranged at two ends of the middle of the rotating shaft; and a rotating motor is arranged at the right end of the rotating shaft. According to the adjustable reciprocating-type back pounding massaging bed provided by the invention, reciprocating vertical motions of the lifting plate can be conducted, so that a back pounding effect of the poundingblocks on human bodies can be achieved and manual back pounding can be avoided; therefore, labor intensity of people is reduced; meanwhile, back pounding quality is also improved; and the adjustable reciprocating-type back pounding massaging bed is strong in practicability, and people's requirement on back pounding massaging can be satisfied.

The invention relates to the field of petroleum well cementation, and provides a differential pressure reciprocating type well cementation vibrator. The differential pressure reciprocating type well cementation vibrator comprises a cylindrical body, a cylindrical isolating unit, a pressure regulating mechanism and an impact body. The end of the cylindrical body is connected with a sleeve. The cylindrical isolating unit is located inside the body and connected with the body. The pressure regulating mechanism used for producing the differential pressure is fixed to the isolating unit. The impact body is connected with the isolating unit through an elastic piece, when a fluid channel of the pressure regulating mechanism is opened, the impact body is located at the first position, and when the fluid channel of the pressure regulating mechanism is closed, the impact body moves to the second position at the downstream position of the first position through the pressure of cement paste. The invention further provides a method using the well cementation vibrator. The vibrator and method solve the problems that underground vibration controllability is poor, the torque action is produced on the sleeve, and a grouting channel is blocked and is out of operation.

The invention relates to a compression heat generation detector and a method thereof. The detector comprises one or more detection units, the detection unit (or each of the detection units) includes a vertical compression device, a vertical compensation device and a core and center temperature sensor synchronization device; and the vertical compression device and vertical compensation device are respectively fixed on an upper frame, the core and center temperature sensor synchronization device is arranged between the pressure plate of the vertical compression device and the support plate of the vertical compensation device through a transitional column having same or similar mechanical properties with another transitional column and a cushion having same or similar mechanical properties with a pressure sensor, and the transitional column just penetrates through the hole of a middle bearer, and does not influence the test accuracy of the compression stress of a rubber sample by the pressure sensor. The detector allows the test sample to be vertically compressed and vertically compensated, the temperature change of the center position of the sample in the test process to be accurately tested and practical conditions to be accurately stimulated.

The invention discloses a special drainage nursing device for the hepatological surgery department. The device comprises a first barrel body and a second barrel body located above the first barrel body, wherein the two sides of the top of the first barrel body are fixedly provided with brackets respectively, the bottoms of the two sides of the second barrel body are fixedly arranged at the opposite sides of the two brackets respectively, and one side of the first barrel body is provided with a handle; the first barrel body is provided with a hydrops collection chamber and a disinfectant storage chamber located in one side of the hydrops collection chamber, and the disinfectant storage chamber is adjacent to the handle. The special drainage nursing device for the hepatological surgery department has the advantages that the structural design is reasonable, the volume is small, convenience is provided for people to carry and use, the hydrops in the liver and gallbladder can be conveniently and quickly discharged, the drainage effect is good, the operation is simple, electric driving saves time and labor and improves the working efficiency, cleaning and maintenance are convenient afterdrainage, convenience is provided for people to disinfect and clean the hydrops collection chamber, and the subsequent reuse is facilitated.

The invention discloses a seed screening device for agricultural planting. The seed screening device comprises a box body and a seed screening assembly arranged in the box body, wherein the seed screening assembly comprises an air separation assembly and a water selection assembly, the air separation assembly comprises a material guiding plate and an air blower, an air outlet is aslant formed in the top of the material guiding plate and is bent, the bent portion in the middle is slant upwards, an opening is formed in the top of the box body and is fixedly provided with an exhaust fan, a dust storage bin is fixedly installed at the upper portion of the side wall of the box body and communicates with the dust outlet end of the exhaust fan through a guide pipe, and to-be-screened seeds are firstly subject to air separation through the air separation assembly and are furthermore screened through the water separation assembly. In this way, the seed screening device has a good screening effect on the seeds, the screening efficiency is high, and dust, seed hulls, withered seeds and other impurities existing in the seeds can be thoroughly removed.

The invention discloses a high-efficiency precision hole sowing machine, which relates to the technical field of agricultural machinery and equipment, and solves the problems of manual hole opening and sowing in the traditional seed hole sowing process, low seeding efficiency, and high labor intensity. The invention includes a frame , wheels, engine and seeding device are installed on the frame. The seeding device includes a seed box, a seed divider and a hole opening rod. The engine drives the hole opening rod to move up and down through the driving mechanism to open holes in the soil, and the seed divider is also driven by it. Sowing is carried out, and the continuous hole sowing of seeds is realized through the continuous cooperation of the seed divider and the hole opening rod. The invention has the advantages of simple structure, reliable operation and high sowing efficiency.

The invention belongs to the field of tea beverage processing, specifically relates to an impurity removing device for tea beverage processing, and aims to solve the problems that in conventional teabeverage process, the filtering speed of raw materials is low, the filtering effect is poor, and a tea beverage contains many impurities. The device comprises a barrel, a rectangular box with openingsin the top and the bottom is arranged in the barrel; a plurality of small holes are formed in the outer side of the rectangular box; a push plate is arranged in the rectangular box; the bottom of thepush plate is fixedly connected with a push rod; a first motor is arranged below the push rod; an output shaft of the first motor is fixedly connected with a rectangular rod; a rectangular groove isarranged in the bottom of the push plate; the outer side of the rectangular rod is slidingly connected to the inner wall of the rectangular groove; and the external side of the barrel is fixedly communicated with one end of a conveying pipe. The impurity removing device can rapidly filter raw materials and remove impurities of raw materials; the secondary filtering effect is good; meanwhile, the residues can be conveniently processed; the time and labor of workers are saved; and the production efficiency is improved.

The invention discloses an automatic reciprocating lifting type back pounding massage bed which comprises a bed body. First movable blocks are installed on the two sides of the upper end of the bed body. A movable frame is installed at the upper ends of the first movable blocks, a top plate is installed at the upper end of the movable frame, a fixing cylinder is installed in the middle of the lower end of the top plate through a bolt, a rotating block is installed at the upper end inside the fixing cylinder, a rotating shaft is installed at the upper end of the rotating block, a lifting blockmakes contact with the lower end of the rotating shaft, a guiding groove is formed in the middle of the right end of the lifting block, a guiding block is arranged inside the guiding groove, a liftingshaft is installed in the middle of the lower end of the lifting block, a lifting plate is installed at the lower end of the lifting shaft, second movable blocks are installed on the two sides of thelower end of the lifting plate, a back pounding frame is installed at the lower ends of the second movable blocks, and a pounding block is installed at the lower end of the back pounding frame. Vertical reciprocating motion of the lifting plate is achieved, the pounding block is driven to achieve the back pounding effect for people, manual back pounding is avoided, the labor intensity of people is lowered, meanwhile, the back pounding quality is improved, and the requirement of people for back pounding massage is met.

The invention provides an airing rack for textile processing and capable of improving the airing efficiency of textiles, relates to the technical field of textile processing, and solves the problems that the airing position cannot be changed under the driving of natural wind power through structural improvement, and automatic wind collection and diffusion type airflow auxiliary airing cannot be realized. The airing rack comprises a rack body; four supporting legs are welded to the rack body, and a fixing structure is welded to each supporting leg. Exhaust holes are formed in a pipe body in the annular array shape, the pipe body is of a cylindrical pipe structure, and the exhaust holes formed in the annular array shape jointly form a diffusion type air injection structure of the pipe body; a connecting pipe is fixedly connected to a rotating seat, the tail end of the connecting pipe is rotationally connected with the pipe body, and the connecting pipe is communicated with the pipe body; and a cover body is installed at the head end of the connecting pipe, and the connecting pipe and the cover body jointly form a wind collecting structure of the pipe body.

The invention discloses a label gumming and pasting device for manufacturing and producing roller type sound boxes. The device comprises a base, motor seats are installed on two sides of the lower endof the base, a driving motor is connected to the middle of the lower ends of the motor seats, a driving belt pulley is installed at the middle of the front end of the driving motor, a conveying frameis installed at the middle of the upper end of the base, a driven belt pulley is installed at the top end of the conveying frame, a transmission wheel is installed on the rear end of a coaxial position of the driven belt pulley, supporting frames are installed on the two sides of the upper end of the base, a fixing frame is installed at the top end of each supporting frame, a rotating shaft is installed on the right side of the lower end of the fixing frame, a roller is installed at the middle of the rotating shaft, a rolling groove is formed in the outer side of the roller, a rolling ball isarranged in the rolling groove, a lifting rod is connected to the left end of the rolling ball, a lifting shaft is connected to the left end of the lifting rod, and a lifting plate is connected to the lower end of the lifting shaft. By adoption of the label gumming and pasting device disclosed by the invention, automatic gumming and label pasting of sound boxes are achieved, and manual label pasting is avoided, thereby not only improving the label pasting efficiency of the sound boxes, but also reducing the labor intensity of workers, and meeting the manufacture and production demands of large-scale sound box label pasting.

The invention discloses a climbing-crop pesticide spraying device for agricultural products. The climbing-crop pesticide spraying device comprises a cart and atomizing nozzles. The atomizing nozzles are connected with a lifting mechanism. The lifting mechanism comprises symmetrical lifting frames. The atomizing nozzles are fixedly connected with the lifting frames. The lifting frames are nested with chute frames. The atomizing nozzles are communicated with a pesticide supply mechanism. The climbing-crop pesticide spraying device has the advantages that through the lifting frames and the chuteframes, the atomizing nozzles reciprocate up and down, so that pesticides can be well sprayed to all positions of climbing crops to achieve uniform spraying, and the spraying efficiency is improved; through the pesticide supply mechanism in linkage with the lifting mechanism for the atomizing nozzles, pesticide liquid is supplied to the atomizing nozzles; the structure is simple, separate arrangement of a pesticide liquid pump is avoided, and the cost of the device is reduced.

The invention discloses a postoperative rehabilitation exercise device. The rehabilitation exercise device includes a back board, a seat plate, a base plate and an upper limb training mechanism; one side on the top end of the base plate is vertically provided with the back board, and a cavity is arranged in the back board; a first movable plate is arranged in the cavity, and a spring is arranged in the cavity on the top end of the first movable plate; one side of the first movable plate is provided with a first installation groove; multiple massage rollers are uniformly arranged in the first installation groove; the cavity side on the top end of the base plate is provided with the seat plate; the middle part on the outer side of a rotating shaft is symmetrically provided with foot pedals;the lower end of the back board is provided with a moving pulley; a connecting rope is arranged on the bottom end of the first movable plate; and the upper limb training mechanism is arranged on the top end of an installation seat. Through the arrangement of the first movable plate and the first movable plate, back massage can be realized while legs are exercised, so that the rehabilitation exercise device is good in practicability.

The invention provides a film laminating and heat sealing integrated production line, belongs to the field of packaging equipment. The film laminating and heat sealing integrated production line comprises a lower shovel flattening assembly, a corner folding assembly and an end surface flattening assembly which are sequentially arranged along the assembly line, wherein a heat sealing assembly is arranged over the lower shovel flattening assembly, and the heat sealing assembly and the lower shovel flattening assembly share a power source and move up and down relative to the corner folding assembly. A packaging box is coated with a film and then passes through the lower shoveling flattening assembly and the heat sealing assembly for connection after film laminating, the packaging box enters the corner folding assembly for the end face corner folding action and the end face sealing action after corner folding while the packaging box is continuously pushed, then the packaging box enters theend face flattening assembly for flattening and hot covering of the upper and lower sections, and finally the package box is discharged for the next procedure. The film laminating and heat sealing integrated production line integrates film laminating and heat sealing, the intermediate transfer link of the packaging box is omitted, the secondary feeding and repeated positioning are also avoided, therefore, the working efficiency is improved, and the manpower is saved.

The invention discloses a jellyfish-type tide surge power generation device which comprises a floating body, an outer sleeve, an inner sleeve, power generating assemblies and a storage battery. The inner sleeve serves as a fixed part, the outer sleeve is arranged on the inner sleeve in a sleeving manner, and the outer sleeve and the inner sleeve are assembled in a dynamic sealing manner. The relative motion of the outer sleeve and the inner sleeve serves as power generation power of the power generation assemblies, and internal pressure changes formed by the relative motion of the outer sleeve and the inner sleeve and outside air pressure are balanced through a ventilating pipe arranged on the outer sleeve. The multiple power generation assemblies can be arranged, and all finally generated power is collected into the storage battery and then finally output to an outer power grid through the storage battery.

The invention provides a process and equipment for preparing bromoethane, relates to the technical field of chemical engineering, and solves the problems that the preheating range cannot be expanded and intermittent feeding cannot be achieved while mixing is conducted through structural improvement, mixing of liquid in a box body cannot be achieved synchronously by promoting a mixing structure in a plurality of synchronous modes through structural improvement, and a gas mixing structure cannot be organically combined with a preheating structure. The equipment comprises a box body, which is of a rectangular box-shaped structure. According to the invention, through the arrangement of a heating structure, a driving structure and an auxiliary structure, a connecting pipe is of a Z-shaped tubular structure, and when a seat body moves downwards, the seat body is in impact contact with the outer wall of the connecting pipe, so that vibration of the connecting pipe and a spray pipe can be realized, and sundries adhered to the spray pipe can be shaken off to keep a spray hole unblocked.

The invention provides a swinging mechanism in a jacquard, and belongs to the technical field of textile machines. The problem that in an existing jacquard, transmission is instable, so that the quality of jacquard fabric is affected is solved. The jacquard comprises a rack, a left supporting plate and a right supporting plate, and the swinging mechanism comprises a transmission shaft, a left eccentric wheel and a right eccentric wheel. The left eccentric wheel is fixed to one end of the transmission shaft, a left rocking rod is arranged on the left eccentric wheel, a first connecting rod is arranged at one end of the left rocking rod, and a second connecting rod is arranged at the other end of the left rocking rod. The right eccentric wheel is fixed to the other end of the transmission shaft, the eccentric potential difference between the left eccentric wheel and the right eccentric wheel is 180 degrees, a right rocking rod is arranged on the right eccentric wheel in a sliding mode, a third connecting rod is arranged at one end of the right rocking rod, a fourth connecting rod is arranged at the other end of the right rocking rod, and a driving structure is further arranged on the transmission shaft and can drive the transmission shaft to rotate. Upper jacquard needles and lower jacquard needles achieve interweaving, so that the jacquard fabric is obtained through weaving, and the transmission property is stable.

The invention discloses a multifunctional lower limb training aid comprising a bed (1). Two hollow cavities (2) are parallelly formed at the left end of the bed (1), a bottom plate (5) is arranged at the bottom of each hollow cavity (2), a box (3) is arranged on the upper portion of each bottom plate (5), the right end of each box (3) is connected with a vertical second pin (7), each second pin (7) is connected with a horizontal first pin (6) staggered with the second pin (7), and each first pin (6) is connected with the left end of the bed (1). By the structure, the multifunctional lower limb training aid is capable of preventing muscle atrophy and ankylosis and is convenient for exercising.

The invention discloses LED backlight with a self-cleaning function, and relates to the LED backlight. The LED backlight includes a mounting bottom plate, the LED backlight is fixedly connected to theleft side of mounting bottom plate, a motor mounting bracket is fixedly connected to the bottom right of mounting bottom plate, the motor mounting bracket is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a first rotating shaft, the left end of the first rotating shaft is fixedly connected with a first rotating blade, the middle of the firstrotating shaft is fixedly connected with a crank throw, and the crank throw is located on the right side of the mounting bottom plate. The LED backlight is simple in structure and convenient to use and driven by the motor during using, vertical reciprocating motion of a second transmission rod is realized, the second transmission rod can drive a positioning cleaning shaft to swing, thus bristles are driven to swing to self-clean the LED backlight, normal use of the LED backlight is ensured, the LED backlight can further drive the first rotating blade and a second rotating blade simultaneouslyto blow away floating dust, re-adhering to the LED backlight is avoided, and at the same time the LED backlight can be cooled.

The invention provides a swing mechanism of a rocker, belonging to the technical field of textile machinery and solving the problems that the swing mechanism in the prior art is complicated, and poor in stability. The swing mechanism of the rocker comprises an operating platform and a supporting plate, wherein a driving shaft is arranged on the supporting plate, an eccentric wheel is fixedly arranged on one end of the driving shaft, a rotating shaft is also arranged on the supporting plate by adopting a manner of axial fixing and circumferential rotation, the rotating shaft is positioned obliquely above the driving shaft, the rocker is fixedly arranged on one end of the rotating shaft, the rocker and the eccentric wheel are positioned in the same one side of the supporting plate, a roller is arranged on one end of the rocker in a rotating manner, a groove is formed in the eccentric wheel along the arc-shaped direction, the roller is arranged in the groove, and a rotating structure capable of driving the driving shaft to rotate is also arranged on the operating platform. The swing mechanism of the rocker has the advantages of being capable of reducing the driving friction and transferring large power.

The invention discloses a pneumatic pump which comprises a first cylinder body, a piston and a reversing device. The pneumatic pump is characterized in that the reversing device consists of a second cylinder body, a driving disc, and a turnplate hermetically arranged in the second cylinder body, a hollow tube body is arranged in the second cylinder body in an integrated manner, two partition plates are arranged between the second cylinder body and the inner tube body, positioned on the same plane, and partitions space between the second cylinder body and the inner tube body into a left cylinder and a right cylinder, the turnplate is in hermetical compression jointed at the upper ends of the inner tube body and the partition plates, a driving shaft is fixedly connected between the turnplate and the driving disc coaxially, and movement locus transfer equipment is arranged between the piston and the driving disc. The pneumatic pump has the advantages of realizing the up-down reciprocating movement of the piston through common action of the movement locus transfer equipment and the reversing device, avoiding vertical collision between the piston and the first cylinder body, greatly reducing the noise, and being accurate to reverse and stable in work in the working process; and in addition, the whole device is simple in structure, convenient to assemble and disassemble, and easy to maintain and repair.

The invention relates to the field of 5G test shielding devices, in particular to a 5G test shielding box which comprises a box body, a rotating structure, a cleaning structure, a sealing structure, awater cooling structure and an anti-blocking structure. By arranging the rotating structure, the ground in the box body can be moved, a cleaning structure is arranged, the ground in the box body canbe comprehensively cleaned, and therefore, dust on the ground in the box body is prevented from influencing the test precision, the cleaning structure can also act on the sealing structure while performing installation work, by adopting seal arrangement, a gap between the cleaning structure and the bottom end of the box body can be filled to increase the sealing effect, the situation that water atthe bottom end of the box body flows out is avoided, normal work of the cleaning structure is guaranteed, it can be kept that water exists at the bottom end of the box body all the time to cool the interior of the box body, and rainwater can be collected and cool the interior of the box body by installing the water cooling structure at the top end of the box body.

The invention discloses an energy-saving sewage treatment device including a sewage tank; the end face of the top of the sewage tank is provided with an accommodation cavity with an upward opening; the bottom of the interior of the sewage tank is provided with a sedimentation cavity; a stirring cavity is arranged between the accommodation cavity and the sedimentation cavity; a sliding frame is slidingly arranged in the accommodation cavity; a cavity with an upward opening is arranged in the sliding frame, and the cavity is sleeved with a separation screen; the separation screen is provided with activated carbon; the right side of the top of the sliding frame is rotatingly provided with a cover plate through an articulated shaft; the end face of the top of the cover plate is internally provided with a plurality of groups of sinks, and the end face of the bottom of the sliding frame is internally symmetrically provided with permanent magnets bilaterally; the bottom wall of the interior of the accommodation cavity is provided with an electromagnetic driving device cooperating with the permanent magnets; a first through groove is connected between the accommodation cavity and the stirring cavity.

The invention discloses a quick medicine triturating cylinder. The quick medicine triturating cylinder comprises a medicine cylinder (1), a cylinder cover assembly, a medicine pestle assembly and a crank-link mechanism; the cylinder cover assembly is installed on the medicine cylinder (1); the medicine pestle assembly extends into the medicine cylinder (1) after penetrating through the cylinder cover assembly; by operating the crank-link mechanism, the rotation motion of the crank-link mechanism is transformed into up-down reciprocating motion of the medicine pestle assembly; and the medicinepestle assembly generates impact force of reciprocating motion so as to triturate traditional Chinese medicinal materials which are sealed inside a space between the medicine cylinder (1) and the cylinder cover assembly. The quick medicine triturating cylinder can realize up-down reciprocating motion of the medicine pestle assembly so as to quickly triturate traditional Chinese medicinal materials, saves time and efforts and is low in noise by sealing the traditional Chinese medicinal material trituration action inside the space between the medicine cylinder (1) and the cylinder cover assembly.