57results about How to "Stable height adjustment" patented technology

The invention discloses a nursing bed for the gastroenterology department of the hospital. The nursing bed comprises a bed board, a base, support frames, sliding chutes, sliders, telescopic booms, extension springs, support barrels, support rods, a through hole, a movable baffle plate, an arc-shaped support plate, a backrest, a fixing block and a telescopic rod, wherein a connecting rod is arranged on the top of the telescopic rod, infusion bottle racks are arranged on the connecting rod, vertical rods are arranged at four corners of the base in a penetrating manner, rolling wheels are mounted at the lower ends of the vertical rods, limiting boards are arranged at the upper and lower ends of the vertical rods, and damping springs are arranged at the positions, on the outer parts of the upper and lower sides of the base, of the vertical rods; stabilizing devices are further mounted at the lower part of the base, and each stabilizing device comprises a connecting block, a screw rod and a cushion block. The nursing bed is reasonable in structure, convenient to use, and stable in height adjustment, the conversion between the moving state and the stable state of the bed body can be conveniently realized, a patient can relieve the bowels without the need of getting out of bed, the damping effect is good, the pressure born by the rolling wheels can be alleviated, and in addition, friction cushions can prevent the deviation of the nursing bed.

The invention discloses a vehicle-mounted LCD intelligent display screen capable of being adjusted in multiple dimensions. The LCD intelligent display screen is arranged on the center console or the seat back, includes a display screen body and a backplane, Vertical guide assembly, sliding support plate, an automatic telescopic device and a drive assembly hinged between the sliding support plate and the back plate for rotationally adjusting about the X axis and a drive assembly for rotationally adjusting about the Y axis, the sliding support plate can make lifting and lowering adjustment between the vertical guide rails, The automatic telescopic assembly can adjust the distance of the vehicle-mounted LCD intelligent display screen, and the automatic telescopic device is connected with theback plate through a ball hinge, and can realize the adjustment of any angle of the LCD intelligent display screen in cooperation with the driving assembly rotated and adjusted around the X axis and the driving assembly rotated and adjusted around the Y axis. The invention can automatically adjust the viewing angle to the best according to the needs of users, and has the advantages of good viewingeffect and high automation degree.

The invention relates to the field of surveying and mapping equipment, in particular to a surveying and mapping instrument adjusting device for engineering. The device comprises a horizontally arranged supporting mounting plate, wherein a storage battery is horizontally arranged at the lower side of the supporting mounting plate, a supporting mounting cylinder is vertically arranged at the upper end of the supporting mounting plate, limiting rotating grooves are formed in the edge of the supporting mounting plate, a plurality of limiting rotating columns are arranged at equal angles in cooperation with the limiting rotating grooves, the outer ends of the limiting rotating columns are all provided with rotating supporting columns, and a lifting mounting cylinder is arranged right above thesupporting mounting cylinder. The device can be subjected to multi-angle support adjustment through a turning swing supporting structure, support under a complex working environment is adapted, and asurveying and mapping instrument is always in an optimal station state; the height adjustment process of the device is stable through a lifting structure of threads and screw rods and in cooperation with a lifting guide structure; and gear engagement is used for transmission, and in cooperation with rotating coupling power supply, the angle adjustment process of the surveying and mapping instrument is accurate, and the power supply process is continuous and stable.

The invention relates to the technical field of medical instruments and discloses fracture bone setting assistant fixing equipment used in an orthopedics department. The equipment comprises a bottom plate, wherein the bottom plate is provided with a straight block and a mounting block; the mounting block is provided with a second electronic telescopic rod; the second electronic telescopic rod is provided with a sliding block; the sliding block and the straight block are provided with first electronic telescopic rods; the first electronic telescopic rods are provided with support plates; the support plates are provided with arc-shaped chutes; the arc-shaped chutes are provided with support round rods; the support plates are provided with semicircular plates; the semicircular plates are provided with arc-shaped grooves; the semicircular plates and the support plates are provided with angle adjusting mechanisms; the semicircular plates are provided with straight plates; the straight plates are provided with threaded rods; the threaded rods are provided with moveable blocks; left L-shaped blocks and right L-shaped blocks are fixedly connected with bottoms of the moveable blocks; the bottoms of the left L-shaped blocks are fixedly connected with left semicircular plates; the bottoms of the right L-shaped blocks are fixedly connected with right semicircular plates; both the right L-shaped blocks and the right semicircular plates are provided with limiting grooves; and the limiting grooves are in fitted sliding connection with the left L-shaped blocks and the left semicircular plates. Limbs of different sizes are placed between the left semicircular plates and the right semicircular plates, and thus the device is good in adaptability.

The invention discloses a shifting unit for a gantry type CNC machining center. The shifting unit comprises a base and a CNC machining device, wherein the CNC machining device is fixedly arranged on the top side of the base; and fixing rods are fixedly arranged at the four corners of the bottom side of the base respectively, sliding grooves are formed in the bottom ends of the fixing rods, slidingrods are slidably arranged in the sliding grooves, the bottom ends of the sliding rods extend out of the sliding grooves and are provided with universal wheels, containing grooves are formed in one sides of the sliding rods, racks are fixedly arranged in the containing grooves in the vertical direction, gears positioned in the sliding grooves mesh with the racks, rotating rods are fixedly arranged at the ends, far away from the center of the bottom side of the base, of the gears, and rotating holes are formed in the inner walls of the sides, far away from the center of the bottom side of thebase, of the sliding grooves. According to the shifting unit, the height of the base can be stabilized and adjusted conveniently, and meanwhile, when the base moves through the universal wheels and machining is carried out, a certain buffering effect can be achieved conveniently.

A one-piece eyeglass temple arm attachment that provides for straightening (i.e., leveling) of eyeglasses relative to a wearer's eyes. The invention relates to straightening eyeglasses relative to the eyeglass wearer's eyes necessitated by asymmetries of the wearer's ears relative to their eyes, or by other weight or height imbalances that create eyeglass crookedness relative to the wearer's eyes. The invention also provides the means for holding and / or shielding small devices or fashionwear. The invention is adjustable by the wearer, requires no tools, will not damage eyeglass frames (e.g., no heat or bending required), and is easily attached to or removed from an eyeglass temple arm. The invention can be manufactured from biocompatible polymers, and is washable, comfortable, and waterproof. The invention can be attached anywhere along an eyeglass temple arm in both conspicuous and inconspicuous locations.

The invention discloses a ditching irrigation and drainage machine for farmland drainage and a working method of the ditching irrigation and drainage machine. The ditching irrigation and drainage machine comprises a fixing plate. Supports are fixedly connected with the four corners of the bottom of the fixing plate, and directional wheels are fixedly connected with the bottoms of the supports. A water tank is fixedly connected with the top of the fixing plate, an adjusting plate is arranged at the bottom of the fixing plate, and limiting plates are fixedly connected with the left side and theright side of the bottom of the adjusting plate. A rotating shaft is movably installed inside the limiting plates, a ditching wheel sleeves the surface of the rotating shaft, and a ditching head is fixedly connected with the surface of the ditching wheel. A motor is fixedly connected with the rear sides of the limiting plates. The ditching irrigation and drainage machine for farmland drainage solves the problems that an existing ditching irrigation and drainage device cannot stably adjust and use the ditching depth, a water pipe for crop irrigation needs to be externally connected in the ditching process, an external water source is pumped by a water pump, the pressure is high, the water quantity is large, the irrigation area is not easily controlled, and the waste of the water source is caused. The ditching irrigation and drainage machine for farmland drainage has the advantages that the ditching depth is adjustable, irrigation is convenient and fast, and the water source is saved.

The invention discloses a highly stable car seat lifter, which comprises a seat cushion and a lifting mechanism arranged below it. The lifting mechanism consists of an upper seat plate, an upper connecting plate, an upper fixing seat, a damping shock absorber, a connecting rod, a lower The connection plate, the lower seat plate, the slide rail, the movable seat, the lower fixed seat and the electric lifting rod are composed of connecting rods parallel to each other fixed between the upper connecting plate and the hypotenuse of the corresponding lower connecting plate, and the upper surface of the lower seat plate The middle part is provided with a slide rail, the slide rail is slidably connected with a movable seat, the upper fixed seat and the movable seat are rotatably connected with a damping shock absorber, and the right side of the movable seat is fixedly connected with the electric elevating rod. The present invention introduces a damping shock absorber into the traditional car seat lifter, while normally realizing the lifting function, it can effectively reduce the vibration that occurs in the driving process of the car, and the damping shock absorber can be selected according to the driver's weight. Appropriate damping is conducive to improving driving comfort.

The invention provides a magnetic resonance imaging medical-treatment detection bed, belonging to the technical field of magnetic resonance imaging medical-treatment apparatus and instruments. According to the technical scheme, the magnetic resonance imaging medical-treatment detection bed comprises a base plate, support legs, guiding screw rods and a base plate, wherein the support legs are arranged on the bottom surface of the base plate, the guiding screw rods are respectively arranged on each corner of the top surface of the base plate, and the bed plate is in threaded connection to the guiding screw rods; and a power transmission mechanism and an adjustment structure are arranged between the bed plate and the base plate. The magnetic resonance imaging medical-treatment detection bed has the beneficial effects that the height adjustment process of the bed plate is relatively smooth, the operation is flexible during the magnetic resonance imaging medical-treatment detection of a patient, and the workload of a medical worker is greatly relieved.

The invention relates to a selling rack for textiles. For the selling rack for textiles, a storage box is arranged on the top of a damping bracket, a hydraulic power device is arranged at the centralposition of the inner side of the damping bracket, a hydraulic rod is connected to the top of the hydraulic power device, the top of the hydraulic rod penetrates through the central position of the top of the damping bracket and the central position of the bottom of the storage box to be connected with the central position of the bottom of the support plate, two sides of the support plate are connected with two side walls of the storage box through slider and sliding chute structures, a stepping motor is arranged on one side of the support plate, a textile placing rack can freely stretch out or be stored in the storage box according to the demands, so that the textile placing rack is stable during height adjustment, therefore, the light supplementing work can be carried out during the displaying process, then the ornamental and promotional effects of the textiles are increased, meanwhile, a good dust prevention effect is achieved, the textile placing rack can rotate at 360 degrees, therefore, consumers can observe the textiles in details from multiple aspects, and finally, the sale quantity of the textiles is favorably improved.

The invention provides a workbench with the center capable of protruding to rise and fall for cutting for clothing cutting processing. The workbench comprises a positioning hole and a positioning bolt. A stepped rectangular hole is formed in the top side face of the workbench, and a rectangular connecting plate is arranged between a left vertical plate and a right vertical plate. A bottom plate iswelded to the top side face of an air cylinder. An exhaust fan is put at the left end of the workbench, a trough is formed in the top side face, and the exhaust fan communicates with the interior ofthe trough. Two semicircular lugs are linked to two connecting grooves through two front pin shafts, so that a lifting table rotates around the front pin shafts. The lifting table capable of rising isarranged on the workbench, clothing can be lifted, the visual effect is more visual and stereoscopic, plate types can be conveniently checked, the clothing can continue to be modified, the height isconvenient to adjust, the inclination degree is adjusted stably, and the integrity is high; and more convenience is achieved by operating an operating rod of the air cylinder by foot at the bottom, generated waste is collected in time in the cutting process, and indoor cloth floating objects are reduced.

The invention discloses a debris treatment device of a machine tool. The debris treatment device of the machine tool comprises an equipment assembly which serves as a main body structure and is used for installing a pressure-bearing base, an adjustable die-casting movable mold and a pressing mold, wherein the equipment assembly comprises a base box, a power box and a bent hanging plate; a plane for fixedly assembling the pressure-bearing base is formed on the upper end surface of the base box; a driving mechanism for driving the adjustable die-casting movable mold to move in the direction perpendicular to the mounting plane of the pressure-bearing base is arranged in the power box; the bent hanging plate is in an L shape, and the bottom end of the bent hanging plate is provided with a station for hanging the pressing mold; the pressing mold presses downwards to achieve pressing of a metal ingot in the mold closing state of the pressure-bearing base and the adjustable die-casting movable mold; a material pushing plate for pushing the metal ingot is arranged in the power box in a sliding manner, and the material pushing plate is synchronously adjusted through the driving mechanism of driving the adjustable die-casting movable mold. The debris treatment device of the machine tool is suitable for automatic and convenient ingot pressing treatment of debris of different specifications, the whole metal ingot after pressing is completed is wrapped and protected, and the debris is prevented from falling off.

The invention relates to a production method and production equipment of an automobile transmission gear. The precision, quality and service life of the transmission gear are improved by improving the production method comprising the steps of forging, annealing, turning, hobbing, shaving, carburizing, modulating, finish machining and the like in the prior art, and a gear hobbing machine in the prior art is improved. A reasonable hob lifting structure is designed, a stabilizing assembly is arranged to maintain the stability of a hob in the lifting process, a sliding lock assembly is additionally arranged to improve the stability of the gear hobbing machine in the standing state, and the safety performance is guaranteed.

The invention discloses a hitting power rehabilitation training device adopting a multi-point touch technology for patients with autism, relates to the technical field of medical rehabilitation, and solves the problem that the conventional muscle rehabilitation training device does not attract autistic children. The device comprises a training system, a first capacitive touch control machine and asecond capacitive touch control machine which are connected with the training system, a base, a moving castor, an impacting hammer, an accessory bin, an identification module, a switch, a lifting motor, a lifting mechanism and a back board, wherein the first capacitive touch control machine is used for displaying training contents; the second capacitive touch control machine is used for displaying training options and for a user to select the options on the second capacitive touch control machine; the lifting motor, the lifting mechanism and the back board control the lifting of the first capacitive touch control machine. The hitting power rehabilitation training device realizes hitting power training for the hitting power rehabilitation training device through the training system, the first capacitive touch control machine, the second capacitive touch control machine and the impacting hammer, is not only rich in training content but also moderate in complexity, and is a scientific, normalized, specialized, systematized and standardized muscle rehabilitation training device.

The invention relates to a lawn mowing mechanism and belongs to the technical field of lawnmowers. The lawn mowing mechanism comprises a frame module, a casing, a brushless motor module, a height adjustment module, a power supply module and a cutter cutting module. The casing is mounted on the frame module, a brushless motor is mounted in the middle of the casing, the cutter cutting module is installed below the brushless motor and connected with the brushless motor module, and the brushless motor module is electrically connected with the power supply module installed at the tail portion of the casing. The height adjustment module includes a rotating handle, a ball screw, a ball base, a supporting bridge plate, a positioning base and a fixing bridge plate; the fixing bridge plate is fixedto the casing, the ball base is mounted on the fixing bridge plate, the supporting bridge plate is arranged above the ball base, the two ends of the supporting bridge plate are fixed to the frame module, the positioning base is mounted above the supporting bridge plate, the ball screw penetrates through the positioning base, the ball base, the fixing bridge plate and the casing, and the upper endof the ball screw is connected with the rotating handle. The lawn mowing mechanism has the advantages of low noise, higher adjustment precision, convenient adjustment and the like.

The invention discloses a special safe power-off device for electric power machine maintenance personnel. The special safe power-off device comprises a base, wherein two first supporting rods are rotationally installed on the top side of the base, second supporting rods are rotationally installed at the top ends of the two first supporting rods through rotating shafts, and the top ends of the twosecond supporting rods are fixedly provided with the same operating table; and a fixed rod and a sliding rod are movably installed on the sides, close to each other, of the two rotating shafts correspondingly, a sliding groove is formed in the end, far away from the corresponding rotating shaft, of the fixed rod, one end of the sliding rod is slidably installed in the sliding groove, a placing groove is formed in one side of the sliding rod, a rack is fixedly installed in the placing groove, and a gear positioned in the sliding groove is meshed with the rack. According to the special safe power-off device, the height position of the operating table can be stably and conveniently adjusted, the operation by maintenance personnel is facilitated, and safe power off can be conveniently carriedout through a sensor; and meanwhile, the sensor can be stably and conveniently assembled and disassembled, and the maintenance and replacement of the sensor are facilitated.

The invention discloses self-service equipment, a money box and an adjusting mechanism thereof. A first slide block and a second slide block are driven to move towards or far away from each other on adoor plate respectively through a driving assembly. A first driving member is rotationally connected between the first slide block and a height limiting plate, and a second driving member is rotationally connected between the second slide block and the height limiting plate, so that when the first slide block and the second slide block move towards or far away from each other on the door plate, the first slide block drives the first driving member to rotate, and the second slide block drives the second slide block to rotate, thereby enabling the height limiting plate to move stably in the vertical direction. In the scheme, the adjusting mechanism of the money box adjusts the two end heights of the height limiting plate respectively with the two slide blocks, so that the adjustment flexibility of the height limiting plate is improved, and the height of the height limiting plate can be adjusted smoothly, thereby enabling the height limiting plate to be accurately located at a required position. Meanwhile, the adjusting structure of the money box has the advantages of simple and compact structure, small box occupation space, and contribution to the improvement of the integral use effect of the money box.

The invention relates to the technical field of monitoring equipment, and discloses a fixed base of remote monitoring equipment capable of achieving wireless monitoring and an application method. The fixed base comprises a mounting plate, wherein a mounting hole is formed in the left side surface of the mounting plate; a base is fixedly connected to the left side surface of the mounting plate; sliding grooves are formed in the upper surface of the base; the number of the sliding grooves is three; the three sliding grooves are arranged in a Y shape; the three sliding grooves are formed in the upper surface of the base in a triangular shape; fixing holes are formed in the inner walls of the sliding grooves; sliding blocks are connected into the sliding grooves in a sliding mode; and the upper ends of the sliding blocks are rotationally connected with connecting rods. According to the fixed base of the remote monitoring equipment capable of achieving wireless monitoring and the application method, the phenomenon that the monitoring equipment cannot be adjusted due to rusting and oxidation of bolts is avoided.

The invention discloses an operation platform for fire engineering installation. The operation platform comprises a first frame body, a second frame body, a plurality of bearing plates, a plurality of first rotating parts, a plurality of second rotating parts, a driving device and a plurality of rotating rods. A first driving assembly for driving a first mounting plate to move is arranged on the first frame body. A second driving assembly for driving a second mounting plate to move is arranged on the second frame body. The plurality of bearing plates are placed on the first mounting plate and the second mounting plate. The first frame body is connected with the second frame body through a plurality of first connecting parts, fixing rods and second connecting parts. The first driving assembly is in transmission connection with the second driving assembly through a plurality of first rotating parts, a plurality of second rotating parts and a plurality of rotating rods. The plurality of first rotating parts and the plurality of second rotating parts are rotationally connected with the first frame body and the second frame body respectively. The driving device is connected with the first frame body or the second frame body and is in transmission connection with the first driving assembly or the second transmission assembly. The operation platform is convenient to assemble and transport, and the structural stability is high after assembly.

The invention discloses an improved welding head fixing device which comprises a base. Universal wheels are arranged on vertex angles of the bottom end of the base; balance weight components are arranged on all side parts of the base; and a support assembly is arranged in the middle of the bottom end of the base. The improved welding head fixing device provided by the invention is scientific and reasonable in structure, and safe and convenient to use; through the balance weight blocks, the gravity center of the fixing device can be effectively reduced, and the occurrence of a dumping phenomenon occurred when the fixing device is used for fixing a welding head is prevented; through installation clamp slots, installation clamp plates and fixed rubber rings, the balance weight blocks and thebase can be tightly connected fixedly, so that the balance weight blocks are prevented from being separated; through support plates, antiskid rubber pads and antiskid bulge balls, the bottom end of the base can be support, and the friction force between the base and the floor is increased; and due to designing the universal wheels, the fixing device is prevented from displacing during use, the stability performance of the fixing device during use can be effectively improved, and the occurrence of the phenomenon of welding point dislocation is avoided.

The invention discloses a well drilling device for oil exploitation, and particularly relates to the technical field of oil exploitation. The well drilling device for oil exploitation comprises a bottom plate, wherein a barrel is inserted in the middle of the top end of the bottom plate, one side of the top end of the bottom plate is fixedly connected with a fixed vertical plate, and the top of one side of the fixed vertical plate is provided with a top plate. According to the well drilling device for oil exploitation, through the arrangement of a dismounting structure between the bottom end of a driving shaft and the top end of a drilling rod, when the drilling rod needs to be connected and lengthened during use, a mounting block fixedly connected with the top end of the drilling rod is inserted into a mounting groove fixedly connected to the bottom end of the driving shaft; a clamping rod fixedly connected to the outer part of the mounting block is clamped into a clamping groove through a specific bayonet, the mounting groove and the mounting block are fixedly connected through a clamping structure formed between the clamping rod and the clamping groove, and the mounting block is tightly abutted through the elastic force of a compression spring fixedly connected to the top end in the mounting groove, so that connection is firmer, and therefore, the purpose that the drilling rod can be conveniently and rapidly detached and connected is achieved.

The invention relates to a spiral height adjusting mechanism for a hydraulic machine. The spiral height adjusting mechanism comprises a first limiting block arranged on a fixed plate and a second limiting block installed at the bottom end of a floating plate. The first limiting block is in an annular shape in whole, a cylindrical fixed seat is arranged on the fixed plate, the fixed seat is sleevedwith the first limiting block, the first limiting block consists of an upper limiting block and a lower limiting block, the bottom surface of the upper limiting block is of a spiral inclined surfacestructure, the top end of the lower limiting block is of a spiral inclined surface structure mutually complemented with the bottom surface of the upper limiting block, and the first limiting block isdriven by a rotating mechanism to realize change of the height of the whole first limiting block. The second limiting block is driven by a horizontal cylinder to move to the position above the first limiting block or move out of the position above the first limiting block. The invention further relates to a machining method of the height adjusting mechanism. The spiral height adjusting mechanism has the advantages that the annular design is adopted for the first limiting block, so that the lower end face of the floating plate can be integrally supported, and the phenomenon of inclination of the floating plate is effectively avoided.

The invention discloses a projection device for computer education and teaching. The projection device comprises a projection machine body, wherein the lower surface of the inner portion of the projection machine body is provided with a high-definition projection head, the high-definition projection head is fixedly connected with the projection machine body, a heat dissipation box is located at the bottom end of the projection machine body and fixedly connected with the projection machine body, and the upper surface of the inner portion of the heat dissipation box is provided with a heat dissipation fan. The projection device for computer education and teaching has the advantages that in a storage state, a user can rotate a second telescopic bracket to a gap between two first telescopic brackets, a bottom plate is in lap joint with the upper surfaces of the first telescopic brackets, so that space is reduced and the appearance is not affected. If the height of a projector needs to be adjusted, the second telescopic bracket can be unfolded through a rotating shaft, a cardan shaft drives the first telescopic brackets to rotate, thereby being capable of adjusting the height of the projector, the projection device can be fixed conveniently through the bottom plate to prevent toppling, the projection device can be placed on an appropriate position of a classroom according to practical situations, the height adjustment is convenient, the placement is stable, and carrying is convenient.

The invention discloses an on-line adjustable auxiliary transmission device of a float glass annealing kiln. The on-line adjustable auxiliary transmission device comprises a rack, a driving transmission mechanism, an auxiliary transmission mechanism and a height adjusting device; the height adjusting device is fixed to the rack and is used for adjusting the auxiliary transmission mechanism to enable a gear of the auxiliary transmission mechanism to be in orthogonal transmission with a gear of the driving transmission mechanism; the driving transmission mechanism comprises a driving gear; the auxiliary transmission mechanism comprises a transmission gear and an auxiliary transmission shaft. According to the invention, the height of the driving gear on the driving transmission mechanism canbe adjusted on line by utilizing the height adjusting device until the driving gear is meshed with the transmission gear on the auxiliary transmission mechanism, so that transmission is performed between the driving transmission mechanism and the auxiliary transmission mechanism, the spatial position direction of the auxiliary transmission shaft is changed, so that the auxiliary transmission shaftand a main transmission shaft of the annealing kiln can rotate at the same speed; on-line adjustment of the auxiliary transmission shaft can be achieved, the installation efficiency is improved, thelabor intensity is reduced, and safety and reliability are achieved.

The invention discloses a wall surface spraying and brushing device special for building interior decoration. The wall surface spraying and brushing device comprises a movable base, stirring barrels and a U-shaped adjusting seat; universal wheels are mounted at the four corners of the bottom end of the movable base, and two sets of mounting grooves for mounting the stirring barrels are symmetrically formed in one side of the upper end face of the movable base; a set of storage grooves for storing the stirring barrels is formed in the side, away from the forming positions of the mounting grooves, of the movable base; push rods convenient to hold are arranged on the two sides of the movable base, and the stirring barrels are each of a cylindrical structure internally provided with a stirringbin; a set of rotating motors is mounted in the center of the top end of each stirring barrel, the bottom end of each rotating motor is matched with a set of stirring shafts extending into the corresponding stirring bin, and the axes of the stirring shafts are consistent with the axes of the stirring barrels; and a plurality of stirring paddles are arranged on the outer edge faces of the stirringshafts at equal distances. According to the wall surface spraying and brushing device special for building interior decoration, the structure is reasonable, automatic spraying and brushing work is easy to implement, alternate material supplying is effectively achieved, and the practicability is high.

The invention discloses an environmental protection equipment adjustment frame, which comprises a fixed plate, a fixed base and a handle. The inside of the bit plate is located above the second gear plate and is connected with the first gear plate through a connecting rod. In the present invention, the inside of the limiting plate is connected to the second gear plate through the connecting rod, and the second gear plate is engaged with the first gear plate, and the first gear plate is provided with a first connecting rod, and the first connecting rod passes through The bolt is rotatably connected with the second connecting rod, so the second gear plate drives the first gear plate to rotate, so that the first connecting rod drives the second connecting rod to move up and down, thereby adjusting the height of the fixing plate. This setting makes its height adjustment more stable , and the adjustable height can be adjusted at will according to the needs of users.

The invention provides a keyboard height adjusting device for computer technology and science teaching. The keyboard height adjusting device for computer technology and science teaching comprises a box body, a placement plate, four cavities, four screws and four threaded sleeves, wherein openings are formed in the top and one side of the box body; the placement plate is mounted in the box body ina sliding manner; the four cavities are all formed in the box body, and the four cavities are distributed in a rectangular shape; the four screws are respectively arranged in the four cavities in a rotating manner; and the four threaded sleeves are arranged on the outer sides of the four screws in a threaded sleeving mode correspondingly, the four threaded sleeves are slidably connected with the inner walls of the four cavities correspondingly, and the four threaded sleeves are fixedly connected with the placement plate. The keyboard height adjusting device for computer technology and scienceteaching has the advantages of being convenient to use, high in stability and capable of rapidly adjusting the height of a keyboard.