35results about How to "Adjust relative height" patented technology

The invention discloses a film sealing and cutting machine. The film sealing and cutting machine comprises a rack, a compression plate, a heat-seal cutter and a containing platform arranged on the rack. The position, opposite to the heat-seal cutter, of the rack is provided with a heat-seal cutting edge. The position, opposite to one side of the containing platform, of the rack is provided with a fixing frame. The fixing frame is provided with a pressing frame capable of sliding up and down and a sealing and cutting frame capable of sliding up and down. The heat-seal cutter is fixed to the sealing and cutting frame. The pressing frame is fixedly connected with a lifting rod moving up and down. The compression plate is fixed to the lower end of the lifting rod. An adjusting rod is arranged in the fixing frame. The pressing frame is matched with the adjusting rod, and the pressing frame slides on the fixing frame up and down accordingly. According to the film sealing and cutting machine, the pressing frame slides along the adjusting rod up and down, the initial height of the compression plate relative to the containing platform is adjusted, the compression plate effectively compresses fabrics at different height positions, dismounting and mounting of the adjusting frame are not needed, and operation is convenient. Compared with the prior art, dismounting and mounting of the pressing frame are not needed, operation is convenient, one-time adjusting time of an operator for the pressing frame is shortened, and the production efficiency is improved.

The invention relates to a blade mounting device of a wind driven generator. The blade mounting device comprises a base. Supporting arms and suspension beams are arranged on the two sides of the base correspondingly; the upper ends of the supporting arms are connected with the base; mounting seats are arranged at the lower ends of the supporting arms; and the suspension beams are fixedly connected to the base and arranged oppositely with the corresponding mounting seats. The suspension beams are connected to a crane through a sling; and clamping devices are arranged between the suspension beams and the corresponding mounting seats in a matching mode and used for clamping a blade. An angle adjusting mechanism and a control box are further arranged on the base. The angle adjusting mechanism is used for adjusting the relative heights of the two ends of the base; and the control box is connected with control signals of the clamping devices and the angle adjusting mechanism. The blade mounting device is reasonable in structure arrangement, the rotor blade can be smoothly conveyed and accurately aligned the base of the wind driven generator, and the assembly efficiency is high.

A lumbar vertebra physiotherapy rehabilitation therapeutic apparatus disclosed in the invention mainly includes a bed body, Finger-pulse modulate thunder-fire moxibustion therapeutic instrument, a table board is arranged above that bed body through a table board support, a thunder-fire moxibustion instrument modulate by finger pulse is arranged beside that bed body, a synergistic lif device is arranged in that inn part of the bed, a synergistic lif device is supported by four lif rails, a lif bracket is arranged in that lif rail, the top of the lifting bracket is connected with a lumbar lifting cover, the bottom side of the lifting bracket is connected with a cooperative telescopic rod, the top of the cooperative telescopic rod is fixedly connected with the bottom telescopic rod through the connecting bracket, the bottom of the bottom telescopic rod is fixed on the bed body, and an internal infrared radiation lamp holder is symmetrically installed on the platform of the connecting bracket. The invention adopts double telescopic rods, which can freely adjust the height; Finger-pulse modulated thunder-fire moxibustion instrument is used to simulate traditional moxibustion in all directions. A lumbar spur, a backward bend traction, a decompression of that lumbar disc along with the sector open of the intervertebral space, backward bend passive movement, strain of the lumbar muscle, and promotion of blood circulation have tremendous application potential in the lumbar spur, backbend traction, and lumbar disc decompression.

The invention relates to a walking aid. The walking aid comprises a frame body, a connecting assembly and two first adjusting assemblies. The frame body comprises two parallel first foot rods and twoparallel second foot rods. The connecting assembly comprises two first cross rods and two second cross rods, each first cross rod is pivoted to one second foot rod, and each second cross rod is pivoted between one first foot rod and one second foot rod. Each first adjusting assembly comprises a first clamping and abutting assembly and a second clamping and abutting assembly, and each first clamping and abutting assembly is arranged on one first foot rod and can move between a first position and a second position. The relative height of the two first foot rods and the two second foot rods can be rapidly adjusted so that a user can go upstairs and downstairs or walk on the non-horizontal ground.

The invention discloses a car-mounted hydrogen generation system and relates to the field of car energy development. The system comprises solution storage chamber containing electrolysis solutions, an electrolysis machine for electrolyzing the electrolysis solutions in the solution storage chamber to generate hydrogen and a heat exchanger for cooling the generated hydrogen. The electrolysis machine is connected with a direct-current power supply. The heat exchanger is the all aluminum cooling-fin-free micro-channel heat exchanger. A water collection tank is arranged below the heat exchanger, and a water pump is arranged on one side of the water collection tank and is connected between the water collection tank and a spray water unit. Compared with the prior art, a few of electrolysis solutions are added in water in the solution storage chamber, electrolysis is performed through the electrolysis machine to generate hydrogen, the electrolyzed hydrogen is cooled through the water-film external heat exchanger, moisture mixed in hydrogen is reduced during cooling, and treatment pressure of later car air filters is reduced.

The invention relates to a device for aligning a strain clamp and a splicing sleeve. The device is used for rapidly aligning a connecting part of the strain clamp or the splicing sleeve. According to the technical scheme, the device for aligning the strain clamp and the splicing sleeve comprises a machine base, a hydraulic device and at least two adjusting bases, a base of the hydraulic device is arranged on the machine base, a working shaft of the hydraulic device is vertically arranged, at least one adjusting base is located above the left portion of the hydraulic device, at least one adjusting base is arranged above the right portion of the hydraulic device, and the adjusting bases are connected with the base; and each adjusting base comprises a groove, and the opening direction of each groove is downward. The device has the beneficial effects that the strain clamp or the splicing sleeve can be rapidly adjusted with high quality.

The invention provides a lifting mechanism of a fork truck. The lifting mechanism comprises a base; a first upright column and a second upright column in the vertical direction are arranged on the two sides of the base respectively; a first lifting cover is slidingly arranged on the first upright column; a first goods fork is hinged to the lower part of the first lifting cover; a second lifting cover is slidingly arranged on the second upright column; a second goods fork is hinged to the lower part of the second lifting cover; a first near-end pressure sensor and a first far-end pressure sensor are arranged on the first goods fork; and a second near-end pressure sensor and a second far-end pressure sensor are arranged on the second goods fork. The lifting mechanism is simple in structure and reasonable in design; the first goods fork and the second goods fork are independently controlled, whether the gravity center of goods on the first goods fork and the second goods fork is stable is monitored through the first near-end pressure sensor, the first far-end pressure sensor, the second near-end pressure sensor and the second far-end pressure sensor, and a controller adjusts the relative height between the first goods fork and the second goods fork or respective inclination angles of the first goods fork and the second goods fork according to measurement data of the various pressure sensors.

The invention discloses a safety protection device for an automobile conveying line. The safety protection device comprises a fixing frame and a conveying mechanism. The fixing frame is located on oneside of the conveying mechanism. The conveying mechanism comprises two oppositely-distributed supporting frames, supporting rods oppositely fixed to the inner surfaces of the supporting frames and the conveying line located on the inner sides of the two supporting rods. In the safety protection device, a protection mechanism for protecting automobiles on the conveying line is additionally designed, protection for the automobile conveying line is improved through protection plates, the safety management level is improved, the personal hurt accident is eradiated, nature protection on operatorsis achieved, and mind and body safety of the operators is effectively guaranteed. Through the arrangement of a supporting adjusting mechanism, the relative height of a supporting plate and a fixing plate can be better adjusted according to conveying lines different in height; and a stabilization mechanism is fixed to the bottom, between the fixing frame and the conveying mechanism, of the supporting plate, so that when the automobiles pass through the supporting plate, the supporting plate is strengthened, and supporting plate damage is reduced.

The invention relates to a yarn clamping device of a spinning machine. The yarn clamping device comprises a cylinder support, a lifting rod sleeved with the cylinder support, a transverse rod rotationally connected with the lifting rod, and yarn clamping plates rotationally matched with the same sides of the two ends of the transverse rod. A multi-gear inserted connection structure for adjusting the inclination angle of the transverse rod is arranged at the matched position of the transverse rod and the lifting rod. By means of the yarn clamping device, the yarn conveying angle of the yarn clamping plates can be adjusted, the height of the yarn clamping plates can also be adjusted, and the yarn clamping device is suitable for various spinning conditions.

The invention discloses ring-cutting equipment for a PVC plate. The device structurally comprises a base, a rotating base, an outer ring, ring-cutting mechanisms, a scrap collecting groove, a fixing disc and a connecting column; wherein the rotating base is arranged above the base, the outer ring of the rotating base is connected with the outer ring, the annular cutting mechanisms are installed onthe left side and the right side of the outer ring respectively, the scrap collecting groove is formed in the connecting position of the outer ring and the rotating base, and the fixing disc is installed in the rotating base; the PVC board cutting device has the beneficial effects that six sets of negative pressure holes are formed in the fixing disc, a PVC board is sucked, and it is guaranteed that the PVC board does not shake in the cutting process; a screw rod is mounted on the rotating seat, so that the relative height between the cutting device and the PVC plate can be adjusted; the transverse distance between the cutting knife and the PVC plate can be controlled by the air cylinder, and the telescopic amount of the air cylinder is controlled by the position of the scale on the measuring range plate, so that the telescopic amounts of the air cylinders on the two sides of the rotating seat are the same, and the PVC plate can be cut into regular circles.

A welder hanging rack comprises a rotating plate and a fixed plate. The lower end of the fixed plate is connected with the rotating plate through a rotating shaft. A pull rope fixing block is arranged at the other end of the rotating plate through a rotating shaft. Two threaded sleeves are connected to the fixed side of the fixed plate through two fixing columns respectively. Main fixing bolts are vertically inserted in the two threaded sleeves. A triangular reinforcing plate is arranged at the bottom of each fixing column. Two welder hooks are arranged at the bottom of the rotating plate. A subsidiary hanging hole is formed in the top of each welder hook. A winding wheel shell is arranged at the top of the fixed plate. A pull rope winding wheel is arranged in a cavity in the winding wheel shell. One end of the pull rope is connected with the pull rope fixing block, and the other end of the pull rope is fixed to the pull rope winding wheel through a supporting guide wheel on the outer side of the winding wheel shell. A winding wheel tightening knob vertically penetrates through the winding wheel shell at the top of the pull rope winding wheel. A rotating handle is connected to the outer end of the axis of the pull rope winding wheel. The welder hanging rack enables the relative height of the two welder hooks to be adjusted and is more convenient to use.

The invention relates to stone cutting equipment, in particular to building stone cutting equipment. The building stone cutting equipment comprises a conveying and ascending mechanism, a longitudinalmoving mechanism, a stone cleaning mechanism and a stone cutting mechanism. The equipment can convey stone, can adjust the relative height of the stone, can clean crystalline silicon dioxide attachedto the surface of the stone, can cut the stone into a specified shape; the conveying and ascending mechanism is connected with the longitudinal moving mechanism, the longitudinal moving mechanism is connected with the stone cleaning mechanism, the stone cleaning mechanism is connected with the conveying and ascending mechanism, the stone cutting mechanism is connected with the conveying and ascending mechanism, the conveying and ascending mechanism is connected with the stone cutting mechanism, the longitudinal moving mechanism is connected with the stone cutting mechanism, and the stone cleaning mechanism is connected with the stone cutting mechanism.

The invention discloses a high-efficiency logistics flexible sorting device. A gear A is driven by a rotating motor, the gear A is meshed with a gear B, so that a rotating body can rotate relative toa main frame according to the actual required sorting direction. A belt motor drives a driving shaft to rotate through a small synchronous wheel, a synchronous belt and a large synchronizing wheel. The driving shaft drives the belt to rotate around a tensioning roller, the driving shaft and a guide wheel, and through a bolt F, a fixing plate and a nut F, the relative positions of the tensioning roller and the rotating body is adjusted, the tensioning of the belt is ensured, so that the sorting process is realized. The sorting device adopting the technical scheme well solves the technical problems that a traditional sorting device is huge in size, high in cost, low in sorting efficiency and high in fault rate, the device is simple in structure and high in safety performance, the device is very convenient to manufacture, mount, demount and maintain, the weight of the whole machine is reduced, the manufacturing cost is saved, and the operation is more humanized.

The invention discloses a multifunctional seeding device for landscaping. The device comprises a housing, wherein the upper end of the housing is provided with a first through hole communicated with the outside, and the opening of the first through hole is provided with a sealing cover matching with the first through hole; the inside of the housing is fixedly connected with a placing plate horizontally arranged, and the two ends of the placing plate are fixedly connected with the inner walls of two sides of the housing; the lower side wall of the placing plate is fixedly connected with two telescopic sleeve rods, and the lower ends of the two telescopic sleeve rods are fixedly connected with two first pulleys; the bottom wall of the housing is provided with a second through hole matching with the two first pulleys; the two first pulleys run through the second through hole; the upper side wall of the placing plate is fixedly connected with a seed box, and the inside of the housing is fixedly connected with a seeding pipe vertically arranged. The invention can sprinkle water to the ground during seeding and can adjust the burying depth of seeds according to different seeds to be seeded, which is beneficial to plant growth.

The invention discloses a full-automatic workpiece cleaning device for mechanical engineering. The full-automatic workpiece cleaning device for mechanical engineering comprises a mounting box, and fixed stand columns, lifting stand columns and crawler belt mounting bodies are arranged in the mounting box. A crawler belt and rotatable workpiece grooves are arranged between the crawler belt mounting bodies, stand column lifting buttons are arranged on the front sides of the crawler belt mounting bodies, and a spray washing pipe and spray holes are arranged above the crawler belt. A glass window is arranged in the front side of the mounting box, a water volume adjusting knob is arranged on the left side of the glass window, a track gear knob is arranged on the right side of the glass window, a fixed baffle main body is arranged on the side surface of the mounting box, a stretchable baffle and a buckle device are arranged on the front side of the fixed baffle, a handle is arranged on the stretchable baffle, and a buckle block is arranged at the front end of the side face of the mounting box. A threaded water inlet pipe is arranged on the back of the mounting box. According to the full-automatic workpiece cleaning device for mechanical engineering, through the arrangement of the rotatable workpiece grooves, the water volume adjusting knob, the track gear knob, the stand column lifting buttons and the like, a conventional cleaning device has the functions of workpiece rotation, track speed adjustment, water volume adjustment and workpiece height adjustment.

The invention provides an under-counter sink assembly and an integrated sink, and relates to the technical field of kitchen tools. By the adoption of the under-counter sink assembly and the integratedsink, the technical problem that an under-counter sink in the prior art is inconvenient to mount is solved. The under-counter sink assembly comprises a mounting frame, a sink and an adjustment assembly. The sink is inlaid in the mounting frame from the upper end of the mounting frame. The adjustment assembly comprises a sliding block assembly, a supporting piece and a driving part used for driving the sliding block set to move in the horizontal direction. The sliding block assembly comprises a body and at least one sliding part arranged on the body, wherein the body is slidably connected withthe side wall of the mounting frame, the upper end of the supporting piece is slidably connected with the upper end face of the sliding part, the lower end of the supporting piece abuts against the sink, and the sliding block assembly enables the supporting piece to drive the sink to move vertically. The integrated sink comprises the under-counter sink assembly.

The invention discloses a portable wireless electronic communication device. The device comprises a base baffle, a supporting rod, a positioning block and a sliding block, a satellite phone is arranged on the base baffle; a first baffle is arranged on one side of the base baffle. A clamping strip is arranged on the first baffle; a first sliding groove is formed in the base baffle. A positioning elastic block is arranged in the first sliding groove, one end of the positioning elastic block is connected with a first spring, a groove is formed in the bottom of the base baffle, a first magnetic block is arranged on one side of the base baffle, a connecting block is fixed to one side of the base baffle, a rotating shaft is arranged on the connecting block, and a clamping block is fixed to the connecting block. According to the portable wireless electronic communication device, the base baffle and the satellite phone can be temporarily fixed on the ground or other places, so that a user canconveniently carry out wireless communication when carrying out other operations, and the portable wireless electronic communication device is convenient to use or protect the satellite phone when thesatellite phone is not used, and is more convenient to carry.

The invention provides a lifting mechanism of a fork truck. The lifting mechanism comprises a base; a first upright column and a second upright column in the vertical direction are arranged on the two sides of the base respectively; a first lifting cover is slidingly arranged on the first upright column; a first goods fork is hinged to the lower part of the first lifting cover; a second lifting cover is slidingly arranged on the second upright column; a second goods fork is hinged to the lower part of the second lifting cover; a first near-end pressure sensor and a first far-end pressure sensor are arranged on the first goods fork; and a second near-end pressure sensor and a second far-end pressure sensor are arranged on the second goods fork. The lifting mechanism is simple in structure and reasonable in design; the first goods fork and the second goods fork are independently controlled, whether the gravity center of goods on the first goods fork and the second goods fork is stable is monitored through the first near-end pressure sensor, the first far-end pressure sensor, the second near-end pressure sensor and the second far-end pressure sensor, and a controller adjusts the relative height between the first goods fork and the second goods fork or respective inclination angles of the first goods fork and the second goods fork according to measurement data of the various pressure sensors.

The invention discloses intelligent power environment monitoring equipment. The equipment mainly comprises a transportation platform; one side of the top surface of the transportation platform is fixedly connected with a first supporting frame; the middle part of the top surface of the first supporting frame is fixedly connected with a limiting pipe; a threaded pipe is slidably connected into the limiting pipe; the middle of the inner wall of the first supporting frame is fixedly connected with a first motor; and the output end of the first motor is fixedly connected with a lead screw. The equipment has the advantages that the threaded pipe is slidably connected into the limiting pipe, the output end of the first motor is fixedly connected with the lead screw, the lead screw is in threaded connection with the threaded pipe, the threaded pipe is slidably connected with the limiting pipe, two limiting strips are slidably connected with limiting grooves correspondingly, and when the first motor is powered on to operate, the lead screw is driven to rotate, the lead screw and the threaded pipe can rotate relatively, the threaded pipe can extend conveniently, the relative height of a protective shell can be adjusted conveniently, and the purpose of adjusting the monitoring height is achieved.

A film sealing-cutting machine, comprising: a frame (1), a compression plate (61), a heat sealing cutter (25), and a placement platform (4) arranged on the frame (1). The frame (1) is provided with a heat sealing-cutting edge (21) at a position corresponding to the heat sealing cutter (25); a fixing frame (8) is arranged on a side of the frame (1) corresponding to the placement platform (4), the fixing frame (8) is provided thereon with a pressing frame (66) and a sealing-cutting frame (22), both of which are capable of sliding up and down; the heat sealing cutter (25) is fixed on the sealing-cutting frame (22), the pressing frame (66) is fixedly connected to a lifting rod (63) which moves up and down, and the compression plate (61) is fixed at a lower end of the lifting rod (63); the fixing frame (8) is provided therein with an adjusting rod (t), the pressing frame (66) cooperates with the adjusting rod (t), which causes the pressing frame (66) to slide up and down on the fixing frame (8). By sliding the pressing frame up and down along the adjusting rod, an initial height of the compression plate relative to the placement platform may be adjusted, such that fabrics having different heights may be effectively compressed without having to disassemble the adjusting frame, resulting in convenient operations.

The invention provides a tensile straddle type monorail support. The tensile straddle type monorail support comprises an upper seat board, a lower seat plate and a tensile assembly, wherein upper tension bearing platforms are arranged at the two ends, perpendicular to the extending direction of a rail, of the upper seat board; the lower seat board comprises lower tension bearing platforms oppositeto the upper tension bearing platforms; and the tensile assembly comprises backing boards and tensile rods, wherein the backing boards are arranged at the upper parts of the upper tension bearing platforms and the tensile rods are used for fixedly connecting the backing boards, the upper tension bearing platforms and the lower tension bearing platforms; and the upper tension bearing platforms andthe backing boards are provided with matched curved-surface acting surfaces. The tensile straddle type monorail support has the advantages of strong anti-drawing ability and good vibration absorbingand buffering effect.

The invention discloses an air conditioner refrigeration air volume testing system which comprises a base, two first vertical plates are symmetrically welded to the two sides of the top of the base correspondingly, a third vertical plate and a fourth vertical plate are welded to the top of the base correspondingly, and the same sliding rod is welded to the sides, close to each other, of the two first vertical plates; a translation motor is fixedly mounted on one side of the fourth vertical plate, a lead screw is welded to an output shaft of the translation motor, and one end of the lead screw penetrates through the fourth vertical plate and is rotationally connected with one side of the third vertical plate; the invention further discloses a testing method. The device has the beneficial effects that the device is compact in structure, a worker does not need to hold a wind speed tester probe by hand, the labor intensity of the worker is greatly reduced, the test result can be prevented from being influenced by hand shaking of the worker, the measurement precision is improved, the air volume of multiple scenes can be measured, the measurement range is expanded, the measurement is more comprehensive, and the measurement efficiency is improved. And the air volume condition of the air conditioner can be reflected more comprehensively.

The invention discloses a multifunctional full-automatic workpiece cleaning device which comprises a mounting box, a fixed stand column, a lifting stand column and crawler belt mounting bodies are arranged in the mounting box, a crawler belt and a rotatable workpiece groove are arranged between the crawler belt mounting bodies, stand column lifting buttons are arranged on the front sides of the crawler belt mounting bodies, and spray washing pipes and spray holes are arranged above the crawler belt. A water volume adjusting knob is arranged on the left side of the glass window; a track gear knob is arranged on the right side of the glass window; a fixed baffle main body is arranged on the side surface of the mounting box; a stretchable baffle and a buckle device are arranged on the front side of the fixed baffle; through the arrangement of the rotatable workpiece groove, the water volume adjusting knob, the caterpillar band gear knob, the stand column lifting button and the like, a conventional cleaning device has the functions of workpiece rotation, caterpillar band speed adjustment, water volume adjustment and workpiece height adjustment.

The invention discloses a gravity-center-adjustable type stack which comprises a body and a lifting mechanism, wherein the lifting mechanism comprises a base; a first stand column and a second stand column are arranged at the two sides of the base of the lifting mechanism; a first lifting cover is arranged on the first stand column in a sliding manner; a first pallet fork is hinged on the lower part of the first lifting cover; a second lifting cover is arranged on the second stand column in the sliding manner; a second pallet fork is hinged on the lower part of the second lifting cover; a first near-end pressure sensor and a first far-end pressure sensor are arranged on the first pallet fork; and a second near-end pressure sensor and a second far-end pressure sensor are arranged on the second pallet fork. The gravity-center-adjustable type stack is simple in structure and is reasonable in design; the first pallet fork and the second pallet fork are independently controlled; the first near-end pressure sensor, the first far-end pressure sensor, the second near-end pressure sensor and the second far-end pressure sensor are used for monitoring whether the gravity center of the goods on the pallet forks is stable or not; and the controller is used for regulating relative height of the first pallet fork and the second pallet fork or a respective inclination angle of each of the first pallet fork and the second pallet fork according to measured data of each pressure sensor.

The invention discloses a suspension type hospital bed smart mobile terminal. The suspension type hospital bed smart mobile terminal comprises main supporting rods, a locating plate, locating pieces,an electric push rod and limiting clamping parts. The upper ends of the main supporting rods are fixedly connected with the top surface of a wall, and the lower ends of the main supporting rods are fixedly connected with the upper ends of extension rods. The two locating pieces are arranged on each side of the locating plate at the same time, and the lower ends of the extension rods are fixedly connected with the tops of the locating pieces. According to the suspension type hospital bed smart mobile terminal, due to the linkage cooperation of a sliding block and a sliding rail and the linkagecooperation of the locating pieces and the locating plate, the relative height of a smart mobile terminal body can be adjusted advantageously. Due to the fact that the electric push rod, a telescopicrod, magnetic attraction blocks and locating blocks are ingeniously arranged, the horizontal position of the smart mobile terminal body can be adjusted advantageously, and the relatively comfortable smart mobile terminal operation experience is provided for a patient in the special environments such as a hospital bed as much as possible.

The invention discloses a blood sampling nursing bracket convenient to adjust for a blood station, and relates to the field of medical blood sampling, the blood sampling nursing bracket comprises a bottom device, the upper end of the bottom device is movably connected with a height adjusting device, the upper end of the height adjusting device is movably connected with an angle adjusting device, and the upper end of the angle adjusting device is fixedly connected with a rotating device; a clamping device is arranged at the upper end of the rotating device, and a bottom plate is fixedly connected to the lower end of the bottom device. The bottom plate is placed at a proper position, and then a supporting rod can be driven to move upwards or downwards through an anti-skid layer, a rotating cylinder, a circular block, a circular groove, an inner gear ring, a transmission gear, a connecting column, a threaded cylinder, a bearing and a screw rod; therefore, the problems that most nursing brackets for blood sampling do not have a convenient adjusting function in the use process, blood sampling personnel cannot conveniently adjust the height and the rotating angle of the brackets according to requirements, and the blood sampling efficiency of the corresponding blood sampling personnel is affected to a certain extent are solved.

The invention provides a display device capable of adjusting the relative location between a display panel and a foundation bed.The display device comprises a shell, a bearing assembly, a release assembly and a foundation bed. The bearing assembly is arranged on the shell and has the first recess and the second recess, wherein the first recess and the second recess each locate in different high position; the release assembly is arranged on the shell and comprises the first hook and the second hook, the location of the first hook and the second hook respectively corresponds with the position of the first recess and the second recess; the foundation bed comprises a hole, the hole selectively corresponds with the first hook of the first recess and one of the hole of the second hook of the second recess.

The invention discloses a ring cutting equipment for PVC boards. The structure includes a base, a rotating seat, an outer ring, a ring cutting mechanism, a debris collection tank, a fixed plate, and a connecting column. A rotating seat is arranged above the base. The ring is connected with an outer ring, and a ring cutting mechanism is installed on the left and right sides of the outer ring. A debris collection tank is provided at the connection between the outer ring and the rotating seat, and the fixed disk is installed in the middle of the rotating seat through a connecting column; beneficial effects: The present invention is provided with six sets of negative pressure holes on the fixed disk, which will suck the PVC board to ensure that the PVC board will not shake during the cutting process; a screw rod is installed on the rotating seat to adjust the distance between the cutting device and the PVC board. The relative height between them; the horizontal distance between the cutting knife and the PVC board can be controlled in the cylinder, and the position of the scale on the range plate is used to control the expansion and contraction of the cylinder, so that the expansion and contraction of the cylinder on both sides of the rotating seat are the same, which can ensure that the PVC board is cut out as a rule. of round shape.