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47results about How to "Change the degree of compression" patented technology

Cardiogram paper roll-dividing device with edge cutting function

The invention discloses a cardiogram paper roll-dividing device with an edge cutting function. The cardiogram paper roll-dividing device comprises a roll-dividing machine body. A fixing rod is fixedlymounted on the roll-dividing machine body, an adjusting rod is arranged below the fixing rod, and the upper surface of the adjusting rod is rotationally connected with a threaded rod through a firstbearing; the other end of the threaded rod penetrates through the fixing rod and extends upwards, and the threaded rod is in threaded connection with the fixing rod; the upper surface of the adjustingrod is fixedly connected with two symmetrical telescopic rods, and the other ends of the telescopic rods is fixedly connected to the lower surface of the fixing rod; and an adjusting plate is arranged below the adjusting rod, the lower surface of the adjusting rod and the upper surface of the adjusting plate are connected through a buffer mechanism, and a T-shaped sliding groove is formed in thelower surface of the adjusting plate. According to the cardiogram paper roll-dividing device, cardiogram paper can further be adjusted and subjected to edge cutting according to the width requirementof the cardiogram paper while the cardiogram paper is subjected to roll dividing through a roll-dividing machine, and the cardiogram paper processing efficiency is greatly improved.
Owner:TIANJIN GRAND PAPER IND

Motor case rolling forming device

InactiveCN107959393ARolling works fastReliable round workManufacturing dynamo-electric machinesRoll formingSheet material
The invention discloses a rolling forming device for a motor casing, which comprises a machine body, two pushing mechanisms are arranged horizontally on the machine body, a first driving roller is arranged on a single pushing mechanism, a second driving roller is arranged on the body, and the second driving roller The roller is arranged above the first driving roller, and the rotation direction of the second driving roller is opposite to that of the first driving roller; a fixed seat is provided on the body, and an adjustment block is arranged on the fixed seat, and the inner side of the adjustment block and the fixed seat A spring is arranged between the inner sides, and a pressing block is arranged on both sides of the fixing seat, and the pressing block presses the outside of the adjusting block, and a mounting seat is embedded in the adjusting block, and a guide roller is rotatably connected to the mounting seat. The invention has sufficient strength and rigidity, can block and guide the sheet, can quickly and reliably roll the sheet, reduces the distance between the joints of the sheet after rolling, and saves labor. cut costs.
Owner:王丽春

Mechanical pipeline vibration isolation sealing device

The invention discloses a mechanical pipeline vibration isolation sealing device and belongs to the technical field of sealing equipment. The mechanical pipeline vibration isolation sealing device comprises sealing caps oppositely arranged on the two sides of a partition plate. A vibration isolation sealing ring is attached to the outer wall of a pipeline. Compressing bottom plates are attached to the two sides of the vibration isolation sealing ring and connected with compressing screws. The compressing screws are in threaded connection with the sealing caps. The mechanical pipeline vibration isolation sealing device is remarkable in sealing effect, the vibration isolation sealing ring can effectively absorb and weaken the pulse of the pipeline, the rubber vibration isolation sealing ring can be replaced quickly from the two sides in an alternative mode when the elasticity of the rubber vibration isolation sealing ring is reduced, and pressure leakage is reduced to the greatest extent.
Owner:浙江乾合畅脉医疗科技有限公司

Edible fungus liquid fermentation strain culture equipment

The invention discloses edible fungus liquid fermentation strain culture equipment. The edible fungus liquid fermentation strain culture equipment comprises a culture tank body; a fixing frame is fixedly connected to one end of the culture tank body; an input assembly and a driving assembly are fixedly arranged in the fixing frame; an air inlet assembly is fixedly arranged at one end, away from the culture tank body, of the input assembly; furthermore, a buffer assembly is fixedly arranged at one end, close to the culture tank body, of the input assembly; and the input assembly comprises a piston cylinder. According to the edible fungus liquid fermentation strain culture equipment in the invention, when a piston is driven by a piston rod to move up and down in a reciprocating mode, a corrugated pipe and a damping spring are matched to achieve the gentle and leakage-proof effects, so that the fixing frame can continuously and gently inject air into the culture tank body through the buffer assembly; furthermore, cooling liquid is driven by an air compressor to circularly flow in a condensation pipe; air in the piston cylinder can be cooled; the situation that edible fungi die due tochanges of the pressure intensity and the temperature is avoided; and the purpose that the growth of the edible fungi is not affected by air injection is achieved.
Owner:浙江世荣农业开发有限公司

Finger nursing exercise device

The invention relates to a finger nursing exercise device, and relates to the field of medical instruments, wherein the finger nursing exercise device comprises a fixed grab handle, a movable grab handle, a strength adjusting mechanism, a clamping piece, a flexibility adjusting piece and an air blowing mechanism and has the beneficial technical effects that the flexibility of fingers can be exercised, and the strength of fingertips of the fingers can also be exercised in a targeted mode. The movable grab handle is arranged on the fixed grab handle; the strength adjusting mechanism is arrangedat the upper end of the fixed grab handle, the movable grab handle is connected with the strength adjusting mechanism in a matched mode, the clamping piece and the flexibility adjusting piece are arranged on the fixed grab handle, the flexibility adjusting piece corresponds to the clamping piece, the air blowing mechanism is arranged in the fixed grab handle, and the strength adjusting mechanism drives the air blowing mechanism to blow air.
Owner:李菲 +2

Strong truncation photon compression system and method under ultra-large constellation scale

The invention discloses a strong truncation photon compression system and method under an ultra-large constellation scale so that ultra-large constellation scale is reduced to a small-scale constellation for light transmission. The compression degree of the whole constellation is changed by changing the compression parameters, so that the size of the constellation is greatly reduced. In the compression process, the constellation point probability is in Maxwell Boltzmann distribution, the center probability is the highest, and the probabilities of the two sides are gradually reduced, so that compared with an original signal under an ultra-large constellation scale, the signal has lower transmitting power, and the overall cost of optical communication is saved. Different compression parameters can change the size of a constellation to form constellation diagrams with different probability distributions, information entropies can be different along with the difference of the probability distributions, and the transmission bit rate can be changed along with the information entropies under the condition that the Baud rate is not changed. At a receiving end, if signals with different compression parameters are received, the access rates are different, so that the optical communication system also has certain flexibility.
Owner:NANJING UNIV OF INFORMATION SCI & TECH

Automatic constant-flow connector

An automatic constant-flow connector is mainly composed of a connector body (1), an adjusting screw (2), an adjusting spring (3), a support (4), a tower-shaped spring (5), a fixed cover (6), a valve element (7) and a fixed seat (8). The automatic constant-flow connector is arranged in an existing pipe network system, and can be inserted in a tool hole in the valve element through a common tool to rotate, and therefore other parts except for the connector body are taken out of the connector body, the compression degree of the adjusting screw on the spring is changed by changing the position of the adjusting screw on a valve rod of the valve element, prestress of the spring is changed, the force needed by pushing a conical head of the valve element into an inner hole of a boss is changed, and the flow per unit time is adjusted from the water outlet end.
Owner:ZHONGSHAN YAXI ENVIRONMENTAL PROTECTION TECH

Discharging device for CIPP roll material

The invention discloses a discharging device for a CIPP roll material. The discharging device comprises a bottom plate, a plurality of installing frames are arranged on the lower side of the bottom plate, rotatable travelling wheels are arranged inside the installing frames, a plurality of supporting mechanisms are arranged on the lower sides of the installing frames, two symmetrically-arranged fixing plates are fixedly connected to the upper side of the bottom plate, positioning openings are formed in the middles of the upper sides of the fixing plates, detachable positioning blocks are arranged inside the positioning openings, installing holes are formed in the middles of the positioning blocks, rotatable discharging rollers are jointly arranged inside the two installing holes, rolling mechanisms are arranged inside the installing holes, and fixing mechanisms are arranged on the fixing plates. The discharging device for the CIPP roll material is reasonable in structural design, capable of cleaning the surface of the CIPP roll material, it is guaranteed that no foreign matter exists on the surface of the CIPP roll material, use of the CIPP roll material is facilitated, the discharging rollers can be rapidly disassembled and assembled, and replacement work of the discharging rollers is facilitated.
Owner:上海潜业市政工程有限公司

Push force-adjustable flow one-way control device

The invention discloses a push force-adjustable flow one-way control device. The push force-adjustable flow one-way control device comprises a main pipe, a branch pipe, a throttling seat, a sealing head, a push rod, a spring, an end plate, a pull pressure sensor, a top plate, a servo motor, a lead screw, a feeding nut, a protection cover, a rotation seat, a water inlet pipe, a water outlet pipe, athermal spreader, a cooling annular groove and cooling fins. The device is simple in structure, the opening push force of the sealing head is adjustable, the device is applicable to different workingcondition demands, the sealing head and the main pipe can be cooled, the service lifetime is prolonged, and the reliability is improved; and meanwhile, a hot medium passing through the main pipe canbe cooled, and the comprehensive utilization rate of a cold medium is effectively improved.
Owner:MAANSHAN JULI SCI & TECH

Water-cooled motor with adjustable coolant pressure

The invention discloses a water-cooled motor with adjustable coolant pressure. The water-cooled motor comprises a motor body, a first rotating shaft, a support, a first gear, a fixing groove, a transition mechanism, a first bearing, a combined cam mechanism, an outer gear, an inner gear, a gear ring, an inner shell, an outer shell, a water pumping mechanism, a water outlet pipe, a pipe body, a bracket, a throttling seat, a sealing head, a push rod, a first spring, a tension pressure sensor, a bottom plate, a servo drive mechanism, a cooling ring groove, cooling fins, a coolant inlet pipe, a coolant outlet pipe and a heat exchanger. The device has a simple structure. A water cooling way is adopted, so that a good cooling effect is achieved. Moreover, a pump and a control system thereof do not need to be arranged separately; high transmission stability and reliability are achieved; and the cooling capacity increases along with the increase of the rotating speed of the first rotating shaft. At the same time, the liquid output pressure can be adjusted to meet the requirement of low-load start-up and make the coolant reach any place of a cavity between an inner shell and the outer shell, thereby increasing the utilization rate of the coolant and improving the cooling effect.
Owner:MAANSHAN JULI SCI & TECH

Bypass type filter

The invention is suitable for the field of hydraulic machinery, and provides a bypass type filter. The bypass type filter comprises a flow control valve, an oil filter tank installed below the flow control valve and a differential pressure transmission device arranged between an inlet and an outlet of the oil filter tank; a pressure gauge is connected with a channel between an outlet of the flow control valve and the inlet of the oil filter tank, an inlet of the flow control valve serves as an oil inlet connector of the bypass type filter, and the bypass type filter further comprises an oil outlet connector which is communicated with the outlet of the oil filter tank. The bypass type filter can adapt to different oil pressure, and whether the pressure size of the oil inlet connector changes or not, the flow at the oil outlet is at the standard set value. According to the preferable scheme, an iron prop is arranged in the differential pressure transmission device, a magnetic reed pipe can be induced after a magnetic body and the iron prop are mutually attracted, and the transmission consistency of each product is guaranteed.
Owner:PRO PURE HONG KONG LTD

Double-layer independent shock excitation screening device used for shield construction muck treatment

The invention discloses a double-layer independent shock excitation screening device used for shield construction muck treatment. The device comprises an equipment installation support. An upper-layerbox body and a lower-layer box body are arranged on the equipment installation support. The bottom of the upper-layer box body communicates with the top of the lower-layer box body, an upper-layer screen and an upper-layer excitation motor are arranged in the upper-layer box body, a lower-layer screen and a lower-layer excitation motor are arranged in the lower-layer box body, and the particle size of the upper-layer screen is larger than the particle size of the lower-layer screen. By means of the double-layer independent shock excitation screening device used for shield construction muck treatment, the upper-layer box body and the lower-layer box body are in a series connection relationship, muck is subjected to two stages of screening treatment through the upper-layer screen and the lower-layer screen, and the overall treatment efficiency and treatment effect of the screening device can be effectively improved; and in addition, the upper-layer box body and the lower-layer box bodyare independent from each other in structure and function, the same vibration characteristic or different vibration characteristics can be used for different types of muck for vibration screening, thescreening device can achieve muck screening with different characteristics, and the overall treatment efficiency of the screening device is further improved.
Owner:CHINA RAILWEY ENG SERVICE CO LTD

Amplitude-adjustable screening equipment for shield construction muck treatment

The invention belongs to the technical field of shield construction muck treatment, and particularly relates to amplitude-adjustable screening equipment for shield construction muck treatment. The problem that the treatment capacity and adaptability of a vibration screening device can be reduced when the vibration screening device adopts the same amplitude in the prior art is solved. According tothe technical scheme of the invention, the amplitude-adjustable screening equipment for shield construction muck treatment comprises a screening equipment box body (2), wherein a screen mesh (3), a spring assembly (1) and a vibrating device (5) are arranged in the vibrating screening equipment box body (2), and an amplitude adjusting device is arranged in the spring assembly (1). According to theamplitude-adjustable screening equipment for shield construction muck treatment, the vibration amplitude of the spring assembly can be changed, so that the vibration amplitude of the screening equipment can be adjusted, the screening equipment can work under different vibration amplitudes, the treatment capacity and the adaptability of the screening equipment are improved, and the screening equipment is suitable for treating shield construction muck.
Owner:CHINA RAILWEY ENG SERVICE CO LTD

Monolithic insulation test tool for carbon ceramic linear resistor

PendingCN112763861AReal simulated usageApplicable insulation testTesting dielectric strengthElectrically conductiveEngineering
The invention relates to a monolithic insulation test tool for the carbon ceramic linear resistor; the test tool comprises a cavity, a main body part with an opening at the upper end and an upper cover for closing the opening at the upper end, the main body part and the upper cover are matched to form a closed air chamber, and the cavity is provided with an inflation inlet communicated with the air chamber; the main body part comprises a conductive supporting part for upwards supporting the monolithic resistor; the test tool comprises a wiring part connected with the conductive supporting part; the test tool further comprises an upper wiring terminal fixedly arranged on the upper cover, the upper wiring terminal comprises a middle electric conductor and an insulator fixedly arranged outside the electric conductor, the electric conductor downwards penetrates into the air chamber, and the insulator is used for being connected with the upper cover in a sealed mode. The test tool further comprises an elastic conductive piece arranged below the conductor, and the elastic conductive piece comprises a spring which directly or indirectly elastically presses the single resistor sheet and is conductively communicated with the single resistor sheet.
Owner:PINGGAO GRP +2

Volleyball training equipment with intelligent ball serving system

The invention relates to the technical field of ball training, in particular to volleyball training equipment with an intelligent serving system, which comprises a bottom frame, side frames extending upwards are fixedly mounted at the front two corners of the bottom frame respectively, and a connecting shell is slidably arranged between the two side frames in the vertical direction through an elastic mechanism; a beating mechanism is arranged on the inner side of the connecting shell, a guide plate is rotationally connected to the lower rear edge of the connecting shell, a collecting box is arranged behind the guide plate, the two rear corners of the guide plate are movably matched with the guide plate in the front-back direction, and a gap for balls to pass through is reserved between the rear edge of the guide plate and the front face of the collecting box. According to the volleyball training system and method, the defect that in the prior art, a real volleyball killing return stroke training mode in volleyball training is overcome, along with training, volleyball tracks are automatically changed, the change does not need to depend on a complex system and corresponding parameters, the equipment is convenient to use, and the later maintenance cost is low.
Owner:新乡医学院三全学院

Liquid ammonia sampling device

PendingCN113654839AThe sampling process is simple and convenientAvoid mistakesWithdrawing sample devicesAlarmsInlet valveEnvironmental engineering
The invention relates to a liquid ammonia sampling device, and relates to the field of liquid ammonia. The liquid ammonia sampling device comprises a base, a steel cylinder sampling tank and a liquid ammonia temporary storage tank are arranged above the base, four pulleys are fixedly connected to the lower surface of the base, a sealing cover is arranged above the steel cylinder sampling tank, a liquid outlet valve and a liquid inlet valve are arranged on the upper surface of the sealing cover, and one end of the liquid inlet valve is connected with a liquid nitrogen transfer seat. According to the liquid ammonia sampling device, under the action of the shielding liquid limiting assembly, when appropriate liquid ammonia is stored in the steel cylinder sampling tank and redundant liquid ammonia enters the liquid ammonia temporary storage tank, the situation that the steel cylinder sampling tank is unstable due to excessive filling of liquid ammonia, and consequently danger is generated is avoided, and under the action of the sliding assembly, when the amount of liquid ammonia in the steel cylinder sampling tank reaches a specified amount, an alarm is given, so that personnel are reminded, and errors caused by manual and autonomous judgment are avoided.
Owner:营口德瑞化工有限公司

Potato Planter Intelligent Amplitude Adjustment Sowing Unit

ActiveCN105165196BGuaranteed actual replantingImprove adaptabilityPotato plantersHydraulic motorDrive shaft
The invention provides an intelligent amplitude adjustment sowing unit of a potato sowing machine. The intelligent amplitude adjustment sowing unit of the potato sowing machine is characterized in that a driven roller is supported on a support I through a driven shaft, a driving roller is supported on a support II through a driving shaft and a tensioning device, and the same conveying belt with protruding blocks and potato seed bowls is hung on the driving roller and the driven roller; a potato guide tube is located between the two side faces of a protective cover fixed to the support I and the support II; a conveying device is mounted on a rack which is supported on the ground through land wheels; a hydraulic motor is mounted on a support III fixed to the support I; a controller is mounted on the rack; sensors I and a sensor II are mounted on the inner end faces of the land wheels and the end face of the driving roller respectively; a rotating frame which is fixedly connected with a supporting leg II and two supporting legs I is supported on the support II, a rolling shaft with a rolling element is fixed to the ends of the supporting legs I, and a corner wheel is mounted at the end of the supporting leg II; a stepping motor is mounted on a support IV fixed to the support I, and sensors III are mounted on a support V which is fixed to the protective cover. The intelligent amplitude adjustment sowing unit of the potato sowing machine is high in sowing precision and wide in application range.
Owner:SHANDONG UNIV OF TECH +1

Potted chimonanthus praecox soilless culture device

The invention discloses a potted chimonanthus praecox soilless culture device. The potted chimonanthus praecox soilless culture device comprises a pot body, a supporting base, a guide cylinder and a righting early warning assembly, wherein the supporting base which is provided with a through hole and is a rotary body is fixedly attached to the inner wall of the middle of the pot body; an elastic dense net is fixed in the supporting base, and a loading space is formed between the elastic dense net and the supporting base, wherein the loading space is used for loading one or more of quartz sand,vermiculite, peat and plastic; a clamping limiting channel is formed between the elastic dense net and the through hole of the supporting base; the guide cylinder is coaxially fixed to the upper portion of the supporting base; and the righting early warning assembly is arranged above the guide cylinder. During installation, a main rod of the chimonanthus praecox sequentially penetrates through the righting early warning assembly, the guide cylinder and the clamping limiting channel, so that the root of the chimonanthus praecox enters a culture solution box in the pot body.
Owner:SICHUAN AAS HORTICULTURE RES INST

High-efficiency heat-dissipating water-cooled motor

The invention discloses a high-efficiency heat-dissipating water-cooled motor, comprising a motor body, a first rotating shaft, an inner casing, an outer casing, an end cover, a support base, a firstgear, a fixing groove, a transition mechanism, a first bearing, a combined cam mechanism, an outer baffle, an inner baffle, a water pumping mechanism, a ring gear, a cooler, a water outlet distribution mechanism and a pressure regulation mechanism. The device is simple in structure and reliable in sealing, cooling liquid can fill a cavity between the inner casing and the outer casing, so that thecooling liquid can be in full contact with the cooler to perform efficient and uniform cooling, and moreover, the sequential liquid distribution can be realized, the heat dissipation effect and efficiency can be effectively improved, the process of separately setting a pump and a pump control system is not required, and the motor is stable in transmission and good in reliability; and meanwhile, the cooling capacity can be improved with the increase of the rotating speed, and the requirements of use under different working conditions can be met.
Owner:MAANSHAN JULI SCI & TECH

A Mechanical Pipeline Vibration Isolation Sealing Device

The invention discloses a mechanical pipeline vibration isolation sealing device and belongs to the technical field of sealing equipment. The mechanical pipeline vibration isolation sealing device comprises sealing caps oppositely arranged on the two sides of a partition plate. A vibration isolation sealing ring is attached to the outer wall of a pipeline. Compressing bottom plates are attached to the two sides of the vibration isolation sealing ring and connected with compressing screws. The compressing screws are in threaded connection with the sealing caps. The mechanical pipeline vibration isolation sealing device is remarkable in sealing effect, the vibration isolation sealing ring can effectively absorb and weaken the pulse of the pipeline, the rubber vibration isolation sealing ring can be replaced quickly from the two sides in an alternative mode when the elasticity of the rubber vibration isolation sealing ring is reduced, and pressure leakage is reduced to the greatest extent.
Owner:浙江乾合畅脉医疗科技有限公司

Dough pressing adjusting device of full-automatic noodle rolling equipment and working method

The invention discloses a dough pressing adjusting device of full-automatic noodle rolling equipment, which is characterized by comprising a positioning plate, a fixing plate and a sliding bearing seat. The positioning plate and the fixing plate are vertically arranged, are arranged in the axial direction in a front-and-back spaced mode and are parallel to each other; a telescopic device is arranged between the positioning plate and the fixing plate; the sliding bearing seat is arranged at the front end of the positioning plate, the rear end of the sliding bearing seat is connected with the positioning plate, the front end of the sliding bearing seat is used for being connected with the driven dough pressing roller, and the driven dough pressing roller can slide back and forth in the axial direction; a driving dough pressing roller is arranged at the front end of the driven dough pressing roller, the side wall of the driving dough pressing roller is attached to the side wall of the driven dough pressing roller in the initial non-dough-pressing state, and the upper portion of the attaching position is used for receiving stirred dough batting. When the dough pressing adjusting device is used, the driven dough pressing roller and the driving dough pressing roller are attached to each other before dough sheets are formed, so that waste caused by falling of dough batting is avoided.
Owner:刘朋立

A mold core processing device for manufacturing a gradually changing angle light guide plate

The invention discloses a mold core processing device for manufacturing a light guide plate with a gradual angle, which relates to the technical field of light guide plate mold core manufacturing, and includes a machine body, an oscillating uniform liquid component, a processing table, a mold core and a burr repair component , wherein, the oscillating uniform liquid component is arranged in the body, and the oscillating end of the oscillating liquid uniform component is connected to a processing table, a mold core is fixed on the processing table, and a mold core is arranged above the mold core. The burr repairing assembly; the burr repairing assembly can provide coating, sandblasting and polishing for the mold core in turn; wherein, when the burr repairing component sprays liquid coating on the mold core, the oscillating uniform liquid component can simultaneously drive The mold core is oscillated so that the coating liquid does not adhere to the burr higher than the molding surface of the mold core, so that the subsequent sandblasting treatment is possible.
Owner:YANGXIN TECH SUZHOU

A vacuum pump vibration damping device with adjustable stiffness

The invention discloses a vacuum pump vibration damping device with adjustable stiffness, relates to the technical field of vacuum pump booster systems, and solves the technical problem that the stiffness of the vacuum pump vibration damping structure is difficult to adjust. It includes a pressing piece connected to the bracket, a gasket arranged between the bracket and the pressing piece, and a first vibration damper. The first vibration damper is pressed on the vacuum pump through the connection between the pressing piece and the bracket. The first The degree of compression between the vibration damper and the vacuum pump is adjusted by the thickness of the gasket. The present invention can change the degree of compression of the first shock absorber by the pressing member by selecting the presence, quantity or thickness of the gasket, so as to achieve the purpose of adjusting the stiffness of the vibration damping structure of the vacuum pump, so that the vacuum pump can be adapted to different arrangements location and use environment, breaking the limitations of the location of the vacuum pump, and the installation and disassembly of the vacuum pump vibration damping structure can be realized by assembling and disassembling the pressing parts. The first vibration damping part does not need to bear the load of the vacuum pump, allowing the vacuum pump vibration damping structure Stiffness is set to be smaller.
Owner:DONGFENG MOTOR CORP HUBEI

Self-protection floor spring

The invention relates to the field of floor springs, in particular to a self-protection floor spring which comprises a shell, a rotating shaft extending in the vertical direction is arranged on the inner side of the shell, the lower end of the rotating shaft is in rotating fit with the bottom face of the inner side of the shell, and the upper end of the rotating shaft extends out of the shell and is provided with a connecting part. The outer surface of the rotating shaft is slidably sleeved with a first stopping disc and a second stopping disc in the vertical direction, the outer surfaces of the first stopping disc and the second stopping disc are provided with halfpace grooves of different numbers, a connecting block is arranged on the inner side, close to one side of the second stopping disc, of the shell, one end of the connecting block is movably clamped into the inner side of each halfpace groove, and the other end of the connecting block is movably clamped into the halfpace groove. The structure of a worm gear in a traditional floor spring is changed, rotation of the floor spring is smoother, the friction effect is reduced, damage is not likely to happen, the service life is prolonged, after the floor spring is matched with a door to be installed, the rotation angle of the door each time can be adjusted, the damping feeling during door pushing can be changed, and the using effect is more comprehensive.
Owner:南京旭科蓝镇科技有限公司

bypass filter

The invention is suitable for the field of hydraulic machinery, and provides a bypass type filter. The bypass type filter comprises a flow control valve, an oil filter tank installed below the flow control valve and a differential pressure transmission device arranged between an inlet and an outlet of the oil filter tank; a pressure gauge is connected with a channel between an outlet of the flow control valve and the inlet of the oil filter tank, an inlet of the flow control valve serves as an oil inlet connector of the bypass type filter, and the bypass type filter further comprises an oil outlet connector which is communicated with the outlet of the oil filter tank. The bypass type filter can adapt to different oil pressure, and whether the pressure size of the oil inlet connector changes or not, the flow at the oil outlet is at the standard set value. According to the preferable scheme, an iron prop is arranged in the differential pressure transmission device, a magnetic reed pipe can be induced after a magnetic body and the iron prop are mutually attracted, and the transmission consistency of each product is guaranteed.
Owner:PRO PURE HONG KONG LTD

Spraying device for water and fertilizer integrated equipment

The invention discloses a spraying device for water and fertilizer integrated equipment. The spraying device comprises a mixing cavity and a spraying cavity which communicate with each other, a feed inlet is formed in the side wall of the mixing cavity, a first spraying hole is formed in the side wall of the spraying cavity, a stirring device located below the feed inlet is arranged between two inner walls in the mixing cavity, a first sleeve communicating with the mixing cavity and the spraying cavity is arranged between the mixing cavity and the spraying cavity, a second spraying hole is formed in the side wall of the sleeve in the circumferential direction, and a flow control assembly located in the spraying cavity is arranged on the path where the mixing cavity communicates with the second spraying hole. The spraying device is used for controlling the mixing time of irrigation water and liquid fertilizer, so that the irrigation water and the liquid fertilizer are mixed more uniformly, meanwhile, the water outlet amount and the water outlet pressure of the fertilizer water can be adjusted, and better spraying on crops is facilitated.
Owner:安徽罗壳智沣农业科技有限公司

An indoor simulation device and method for slope blasting

ActiveCN113008706BBlasting achievedAdjust blast strengthStrength propertiesTEX-explosiveClassical mechanics
The invention provides an indoor simulation device for slope blasting, which relates to the technical field of indoor simulation tests; the device includes a box body, a telescopic moving mechanism, an explosive ball and an air pump; the telescopic moving mechanism includes a second drive assembly, a hollow extension rod and Drilling assembly; the second driving assembly is connected with one end of the hollow extension rod; the drilling assembly is arranged at the other end of the hollow extension rod; the air inlet and the inlet valve are provided on the hollow extension rod; the air inlet is connected with the air pump The explosive ball includes an explosive ball shell, a core skeleton and a rubber bag; the explosive ball shell is sleeved on the hollow extension rod through the installation hole; the inner core skeleton is sleeved on the hollow extension rod through the limit hole; the inner skeleton is also provided with a positioning hole The rubber bag is set on the hollow extension rod; the positioning hole is provided with springs and marbles; the marbles are in contact with the shell of the explosive ball; the present invention also proposes a simulation method based on an indoor simulation device, and the slope is simulated by replacing high explosives with explosive balls Blasting, safe to use.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
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