269results about How to "Easy to store and place" patented technology

The invention relates to an intelligent folding scooter which comprises a front scooter body and a rear scooter body. The front scooter body and the rear scooter body are connected in a foldable mode through a front scooter body and rear scooter body connecting piece. The front scooter body comprises handlebars, a handlebar lifting rod and a driving wheel, wherein the handlebars are connected to the two sides of the top end of the handlebar lifting rod through threads, a front wheel fork piece is fixedly arranged at the bottom of the handlebar lifting rod, and the driving wheel is rotationally installed on the front wheel fork piece. The rear scooter body comprises a pedal, a folding device and a rear wheel, wherein the folding device is fixedly installed at the front end of the pedal and provided with a folding footstep, the front scooter body and rear scooter body connecting piece is movably connected to the folding device, a rear wheel installation base is arranged at the rear end of the pedal, the rear wheel is rotationally installed on the rear wheel installation base, a battery locking device and a controller are arranged on the handlebar lifting rod, a detachable and replaceable battery pack is installed on the battery locking device, and the controller is electrically connected with the detachable and replaceable battery pack. The intelligent folding scooter is light and flexible, easy to fold and store, complete in function and good in man-machine interaction performance.

The invention relates to building concrete block treatment equipment. The building concrete block treatment equipment comprises a supporting base, supporting columns, a supporting bottom plate, a conveying device, a discharging device, a smashing device, a carrying device and an extruding device. The supporting bottom plate is installed on the top of the supporting base through the supporting columns. The top of the left end of the supporting bottom plate is provided with the conveying device. The discharging device is connected with the supporting bottom plate. The smashing device is installed on the top of the supporting bottom plate. The carrying device is connected with the top of the right end of the supporting bottom plate. The extruding device is installed on the top of the supporting bottom plate. By means of the building concrete block treatment equipment, the problems that when rebar separation is carried out on concrete blocks at present, the labor intensity is large, automatic rebar separation cannot be carried out on the concrete blocks, concrete fragments cannot be controlled to be directly recovered when the concrete blocks are broken, the breaking positions of the concrete blocks are adjusted complexly, rebar recovering needs to be carried out manually, injuring hidden dangers exist when rebars are taken, and the rebars cannot be automatically extruded can be solved.

The invention discloses a soil remediation ecological moisturizing method based on efficient stirring. A solution mixing and effect-improving mechanism comprises a mixing cylinder, a bracket, a secondrotating motor, a stirring rod, a stirring frame, a shovel plate, a discharge pipe, a water stop valve, a charging barrel, a filtering barrel, a chain wheel, a chain, a rotating rod, an upper grinding block, a lower grinding block, a channel, a spiral feeding plate, a feeding pipe, a rotary vane, a filtering barrel, a water outlet and a water inlet pipe, the bottom end of the mixing cylinder is fixedly connected with a bracket, safe and convenient use is realized, a solution mixing and efficiency improving mechanism is arranged, the second rotating motor drives the stirring rod to rotate, andthe two rotating rods are driven to move and rotate through transmission of the chain wheels and the chains, so that the repairing agent is crushed through cooperation of the upper grinding block andthe lower grinding block, the repairing agent can be rapidly mixed with water, meanwhile, the rotary vane and the filtering barrel are matched to filter the water, impurities in the water are reduced, and the effect of the mixed repairing liquid is prevented from being affected by too many impurities.

The invention discloses a cutting system for shaping stage light beams, which comprises a support, a cutting device and four pairs of executing mechanisms, wherein the cutting device comprises four sets of cutting blades; the cutting blades are arranged in different planes orthogonal to a light beam and can move along the corresponding plane; each pair of executing mechanisms is connected with one set of cutting blades and comprises a driving motor and a transmission mechanism, and the driving motor is arranged on the support; the transmission mechanism further comprises a rotary rod; and one end of the rotary rod is fixedly connected with an output shaft of the driving motor, and the other end of the rotary rod is movably connected with the corresponding cutting blade. Because the rotary rod and the output shaft of the motor can synchronously rotate, the rotation of the driving motor can be rapidly transmitted to the cutting blades so as to get a high cutting speed and even the stroboscopic effect of cutting.

The invention discloses a soil remediation ecological moisturizing system which comprises a vehicle frame, a hanging ring is fixedly connected to one end of the vehicle frame, fixing bases are fixedlyconnected to the bottom end of the vehicle frame, and rolling wheels are rotationally connected to the two ends of the two fixing bases. A soil collecting and crushing mechanism is installed in one fixing base, a heating cylinder is fixedly connected to the top end of the vehicle frame, a soil repairing and discharging mechanism is embedded in the heating cylinder, use is safe and convenient, thesoil collecting and crushing mechanism is arranged, and through cooperation of a positioning pin, a limiting block and a limiting groove, the angle of a shovel plate is conveniently adjusted, so thatthe angle of the shovel plate is adjusted according to the actual ground, the shovel plate is attached to the ground, severely polluted soil is conveniently shoveled up, the soil collection efficiency is improved, the soil remediation efficiency is improved, meanwhile, the labor pressure of workers is reduced, and a rotating shaft, a conveying belt, a rotating rod, a belt and a transmission gearare matched.

The invention provides a municipal anti-blocking manhole cover. The municipal anti-blocking manhole cover comprises a fixing cover, a water flow rotating turbine and a partition screen and is characterized in that a limit pressure plate is fixedly integrally arranged on the bottom outer wall of a fixed out wall, and the upper side of the limit pressure plate are fixedly welded to the outer wall ofthe fixed outer wall through reinforcing triangular blocks; the fixing cover is fixedly mounted at the upper end of the fixed outer wall through a rotary shaft; cleaning brushes are mounted on the upper side of the partition screen, and the rotating turbine is mounted on the lower side of the partition screen; a fixing groove is formed in the bottom side of the fixing cover, a warning sign is stored on the inner side of the fixing groove, and the warning sign is fixed to the inner side of the fixing cover through a fixing pin. The municipal anti-blocking manhole cover has the advantages thatthe cleaning brushes are fixedly connected with the rotating turbine and movably mounted in the middle of the partition screen through a bearing, and the cleaning brushes can be driven by the rotationof the turbine to rotate on the partition screen to favorably clean the upper side of the partition screen.

The invention discloses a movable hillside orchard transporting system which comprises a transporting pulley, a plurality of dual-rails, a driving device, first riding wheels, a steel wire rope and a control device. One end of the steel wire rope is fixedly connected with the driving device while the other end of the steel wire rope is fixedly connected with the transporting pulley which rides on the dual-rails, adjacent dual-rails are in detachable connection, the driving device is arranged on the mountaintop, the first riding wheels are arranged on crossbeams of the dual-rails, and the control device is connected with the driving device. The movable hillside orchard transporting system overcomes the defects that transporters in the prior art cannot be detached for transferring and are unrecyclable, high in production cost, labor-consuming, time-consuming and the like, and has the advantages of simple structure, simplicity and convenience in operation, detachability for transferring, cost saving, reusability, high cost performance and the like.

The invention discloses an indoor decoration manual wall grooving machine convenient to carry and store. The indoor decoration manual wall grooving machine comprises a grooving device body, a water spraying head, a connecting hose, a fixing head, a handle, a sliding channel, a baffle, a first sliding wheel, a sliding block, a protection plate, a cutting tool, a stepping groove and a water sprayingpipe. A fixing cover plate is arranged above the left side of the grooving device body. The water spraying head is arranged on the left side of a sliding ring. The connecting hose is located below the water spraying head. The sliding channel is located at the upper portion of the interior of the fixing base. The baffle is located at the right end of the sliding channel and the right end of the first sliding groove. The first sliding wheel is located at the lower end of the fixing base. The water spraying pipe is located on the inner side of the water spraying head. By means of the indoor decoration manual wall grooving machine convenient to carry and store, the grooving machine is arranged to be in an adjustable manner, control over the grooving machine of a user is facilitated, in addition, the grooving machine is arranged to be in a storable and foldable manner, and therefore storage of the grooving device body is facilitated.

The invention relates to a telescopic clothes rack. The telescopic clothes rack comprises two clothes rack bodies, wherein each clothes rack body comprises a pothook and a clothes rack body part connected to one end of the pothook, the other end of the pothook is a free end, a connecting sheet which can be in sealing connection with the free end of the pothook is articulated at a connecting end between the pothook and the clothes rack body part, two expansion links arranged in parallel are fixedly connected between the two clothes rack bodies, each expansion link comprises multiple fixed links which are sequentially arranged from top to bottom in a lap joint manner, a sliding chute matched with the fixed link at the upper part is formed in the fixed link at the lower part, the two adjacent fixed links are fixed together through elastic positioning screws arranged at the lap joint ends of the fixed links, and a flexible supporting net is formed between the two expansion links. When the telescopic clothes rack is used, clothes can be spread out on the supporting net so as to avoid the defect that when the clothes are vertically hung, the clothes deform; when the telescopic clothes rack is not in use, the extension links can be folded, and the telescopic clothes rack is easy to store and place; and when the telescopic clothes rack is hung on a clothesline or a clothesline pole, the telescopic clothes rack does not fall off, so that the clothes is prevented from being polluted.

The invention relates to reinforced concrete crushing and recycling equipment. The reinforced concrete crushing and recycling equipment comprises a supporting seat, supporting columns, a supporting base plate, a discharging device, an extruding device, a transferring device and an extruding device; the supporting base plate is installed on the top of the supporting seat through the supporting columns; the discharging device is installed on the top of the left end of the supporting base plate; the extruding device is installed on the top of the supporting base plate; the transferring device isconnected with the top of the right end of the supporting base plate; and the extruding device is positioned at the rear side of the transferring device and is installed on the top of the supporting base plate. The reinforced concrete crushing and recycling equipment provided by the invention can solve the problems that when steel bars of the existing concrete blocks are separated, the labor intensity is large, the steel bars of the concrete blocks cannot be automatically separated, broken concrete blocks cannot be controlled to be recycled directly in a crushing process of the concrete blocks, the steel bars need to be recycled manually, a hidden danger of injuring a person is generated in recycle of the steel bars, the steel bars cannot be automatically extruded and the like.

The invention provides a multifunctional electric drill capable of accurately positioning. The multifunctional electric drill comprises an electric drill body, wherein the electric drill body comprises a swivel, an electric drill main body and a handle; a chuck is coaxially arranged at the front end of the swivel; a drill bit is clamped on the chuck; a positioning device is arranged on the chuck; a positioning display screen is arranged on the electric drill main body; a dust collection device is further arranged at the front end of the swivel and is arranged between the chuck and the swivel; a plurality of dust suction holes are uniformly formed in the front end surface of the dust collection device; a plurality of dust discharging rails are uniformly arranged on the side surface of the swivel along the periphery; an illumination device is arranged between the dust collection device and the swivel; a heat dissipation hole is formed in the rear end of the electric drill main body; a storage battery is arranged in the handle; a charging wiring hole is formed in the bottom of the handle; and the charging wiring hole is connected with a power line. The multifunctional electric drill capable of accurately positioning is simple in structure and reasonable in design and can be used for absorbing generated dust when being used for drilling; and the multifunctional electric drill is provided with a laser positioning device, so that hole depth and hole position can be accurately positioned.

The invention discloses a body coordination training device for dragon and lion dance. The device comprises a mounting bottom plate, the lower surface of the mounting bottom plate is fixedly connected with universal wheels with brakes, the upper surface of the mounting bottom plate is in threaded connection with an adjusting lead screw, and the bottom end of the adjusting lead screw is rotationally connected with a fixing block through a bearing. A rotating block is fixedly connected to the top end of the adjusting lead screw, a supporting connecting plate and a fixing cylinder are fixedly connected to the upper surface of the mounting bottom plate, a mounting plate is fixedly connected to the upper surface of the supporting connecting plate, and a servo motor is fixedly connected to the back face of the mounting plate. The device is reasonable in structure, by arranging a mounting plate, the servo motor, a shielding plate, a training beacon and a training pointing sticker, a dragon dancer can conveniently move on the corresponding training pointing sticker according to the training beacon, by arranging a grabbing rod, the simulation that the dragon dancer grabs an object with the hand is facilitated, and therefore, the device has the function of facilitating body coordination training of a dragon and lion dancer.

The invention relates to a distribution network device detection informatization management method. The method comprises a PC and comprises the following steps in sequence: obtaining location information, obtaining device information and detection station state information, obtaining detection information, and formulating a detection scheme and a logistics scheme. The distribution network device detection informatization management method provided by the invention has the advantages that the step 1 realizes the distribution position informatization of a detected product on a spatial scale to solve the problems that the detected product is inconvenient to be positioned and searched within a detection period, and that assorted devices are easily confused after the detection, the warehouse-out and warehouse-in of the detected devices and the fast assembly of the assorted devices are facilitated, and a dynamic logistics scheme is formed, and the step 2 realizes the detection progress informatization of the detected product on a time scale to accurately master the detection progress of the detected product and the working conditions of each test area in real time, thereby optimizing thedetection scheme, reducing the human intervention, optimizing the logistics resources and the detection resources and greatly improving the detection efficiency.

The invention discloses a light beam shaping and cutting system for a stage luminaire. The light beam shaping and cutting system for the stage luminaire comprises a support, a plurality of sets of cutting blades and a plurality of pairs of actuating mechanisms, wherein all sets of cutting blades are respectively arranged in different planes which are orthogonal with light beams and can move alonginside the planes; each pair of actuating mechanisms is connected with one set of corresponding cutting blades; each actuating mechanism comprises a drive motor and a transmission mechanism; the drive motors are arranged on the support; each transmission mechanism comprises a push rod, a cam and a guide plate; the cams are fixedly connected with the corresponding drive motors; one ends of the push rods are movably connected with the corresponding cutting blades; the other ends of the push rods are movably connected with the corresponding cams; and the guide plates are arranged on the support.The cams, the push rods and the guide plates are matched to convert the rotary motion of the output shaft of the corresponding drive motor into the linear motion of the corresponding push rod, so that a higher cutting speed can be obtained. Meanwhile, a cam and push rod mechanism is simple in structure, small in size and reasonable in layout.

The invention discloses a portable storage device for a civil engineering instrument. The device comprises a box body; a cover door groove opened upwards is provided on the top wall of the box body; acover door shaft is fixedly connected between the left and right end walls of the back end of the cover door groove; the cover door shaft is rotatably connected to a cover door; a torsion spring is connected to the cover door groove through a torsion spring; a hasp mechanism is disposed on the front end wall of the cover door; a hasp groove opened forwards is formed in the front end wall of the box body; a first chute opened upwards is formed in the bottom wall of the cover door groove; a first slide block is slidably connected into the first chute; a damping mechanism is disposed between thebottom wall of the first slide block and the bottom wall of the first chute; five second chutes opened upwards are symmetrically arranged on the top wall of the first slide block left and right for respectively storing various civil engineering instruments; box wheels can be unfolded for pushing transfer, so that carrying is convenient; when the box body is folded to shrink back the box wheels, the cover door can be automatically opened to conveniently store the instruments; and when the box wheels are unfolded, the box door can be automatically closed to facilitate conveying.

The invention discloses a folding lifting device suitable for mine high-altitude operation. The folding lifting device suitable for the mine high-altitude operation comprises a walking flat plate anda folding ladder. Walking wheels are installed on the lower part of the walking flat plate, and a traction and fixing device is arranged at the front end of the walking flat plate. The folding laddercomprises a supporting vertical rod frame, an inclined steel frame and a platform. The middle upper part of the supporting vertical rod frame is rotatably connected with the upper end of the inclinedsteel frame; the lower end of the supporting vertical rod frame is placed on a sliding guide rail through a roller, and pedals are arranged on the inclined steel frame. The lower end of the inclined steel frame is rotatably connected to a hinged seat arranged on the upper part of the walking flat plate, the upper end of the inclined steel frame is rotatably connected to the platform, the outer endof the platform is connected with a storage driving device, the outer side of the roller abuts against a limiting block, and a detachable bolt is arranged on the inner side of the roller. A foldableelevator of the folding lifting device suitable for the mine high-altitude operation is convenient to store and place before operation, so that the foldable elevator is convenient to transport in a mine hole in the transport process; when the foldable elevator is used, the folding ladder is unfolded to realize quick operation; and the folding lifting device suitable for the mine high-altitude operation further has the characteristics of simple structure and low costs.

The invention discloses a telescopic aquaponics breeding and planting device and relates to the technical field of breeding and planting facilities. The telescopic aquaponics breeding and planting device comprises a water tank body, a waterproof film and a vegetable-planting floating plate, wherein vegetable planting holes are formed in the vegetable-planting floating plate; the telescopic aquaponics breeding and planting device is characterized in that two outer brackets are arranged on two outer sides of the water tank body; more than two inner brackets are arranged on the inner side of the water tank body; more than one expanding and contracting mechanisms capable of enabling the water tank body to horizontally expand and contract are arranged between the outer brackets and the inner brackets and between the inner brackets; the waterproof film is fixed on the outer brackets and the inner brackets; the waterproof film can be expanded, folded and contracted along with the water tank body. The telescopic aquaponics breeding and planting device is ingenious in structure, simple and convenient to operate and convenient to contract and transfer, can be applied to commercial large-scale and large-area planting, can also be applied to household ornamental breeding and planting, has high popularization value and is especially suitable for application and popularization on temporary idle land.

The invention discloses an angle adjusting device for English learning computer, and relates to the technical field of support adjusting devices. According to the device, a first angle adjusting assembly can rotate around the central axis of a telescopic supporting rod assembly so as to adjust the angle; a second angle adjusting assembly can rotate around the central axis of the second angle adjusting assembly so as to adjust the angle, and the central axis of the second angle adjusting assembly and the central axis of the telescopic supporting rod assembly are vertically arranged in space; adamping adjusting assembly is arranged in each of the first angle adjusting assembly and the second angle adjusting assembly, and also arranged between a rotating rod and a fixing base; the damping adjusting assembly can adjust the rotating damping coefficient between the rotating rod and the fixing base, and also can adjust the rotating damping coefficient of the first angle adjusting assembly and the rotating damping coefficient of the second angle adjusting assembly, so that the adjustment of the rotation damping force is realized, and the purpose of conveniently and quickly adjusting the height of the support frame is achieved.

An agile ladder structure for football training, comprising a fixed ladder frame, a hurdle and a storage mobile car; the structure body is provided with a fixed ladder frame; The distance adjustment placement groove and the ladder frame connecting groove are formed; the side wall of one end of the fixed ladder frame is provided with a ladder frame connecting block; the other end of the fixed ladder frame is provided with a ladder frame connecting groove; the upper end of the fixed ladder frame Ladder distance adjustment placement slots are symmetrically opened; ladder bars are installed inside the ladder distance adjustment placement slots; the upper end of the fixed ladder frame is also symmetrically connected and installed with hurdles; wheel composition. The agile ladder structure used for football training is provided with a ladder frame connecting block that fits closely with the ladder frame connecting groove, and the ladder frame connecting block can be embedded and installed inside the ladder frame connecting groove. The side is inserted into the connecting groove of the ladder frame for fixed connection, which is convenient for the lengthening and use of the structure body.

The invention provides projection equipment convenient to store and place and used for computer major teaching, belonging to the technical field of projection equipment for teaching. The projection equipment convenient to store and place and used for computer major teaching comprises a storage box, wherein three mounting clamping seats are fixedly arranged at the top of the storage box, mounting clamping plates are fixedly arranged in the three mounting clamping seats, connecting columns are fixedly connected to the upper ends of the mounting clamping plates, an electric cylinder is fixedly arranged in the middle of the inner top wall of the storage box, the lower end of the electric cylinder is fixedly connected with a connecting plate, and the lower end of the connecting plate is fixedly connected with a limiting plate. According to the projection equipment convenient to store and place and used for computer major teaching, the storage box is arranged, a projector is stored in the storage box, and the storage box is in a closed state, so dust is prevented from entering a lens and the interior of a projector body, and the purpose of convenient storage is achieved; and the storage box is convenient to hoist, and the use of the equipment is very convenient.

The present invention discloses a vacuum grain drying system. The vacuum grain drying system comprises a drying box, a solar energy panel, a working box, a hot air blower, a temperature controller and a vacuum machine. The working box comprises a power storage box and a solar energy controller. The solar energy controller and solar energy panel are electrically connected with each other. The drying box comprises a grain placing support box, the temperature controller and a temperature and humidity detector. The drying box is connected with the hot air blower and the vacuum machine. The hot air blower and the vacuum machine are electrically connected with the power storage box. The temperature controller and the hot air blower are electrically connected. An air outlet pipe is arranged on the drying box and a sealing valve is connected to the air outlet. The vacuum grain drying system is reasonable in design and easy to use and can achieve a high-efficient vacuum drying of the grains. At the same time, the power supply method is environmentally friendly and economic. The vacuum grain drying system has automatic detection and temperature control functions and is suitable for a wide range of promotions.

The invention discloses a multifunctional tea table. The tea table comprises a tea table body, a first partition plate, a collecting groove, storage grooves, a lifting placement tray assembly, a top surface, a moving assembly, a lifting supporting seat assembly, a drawer, a handle, a limiting block, a rubber pad and a locking nut, the interior of the tea table body is of a hollow structure, firstpartition plates are symmetrically welded and fixed to the inner walls of the two sides of the tea table body, the colleting groove is formed in the inner wall, located between the first partition plates, of the interior of the tea table body, and the lifting placement tray assembly is arranged in the storage groove; according to the invention, the structure is simple and compact; on the basis ofa traditional tea table, the interior of the tea table is divided into a plurality of storage grooves. The lifting placement tray assembly is arranged, so that lifting of a tray for placing the tea set in the later period is facilitated, the tea set can be conveniently stored in a sealed mode, and the problem that the tea set and the like are prone to being contaminated by dust due to the fact that the tray on a traditional tea table is exposed outside for a long time is solved.

The invention discloses a paint spraying device for a hub of a new energy motorcycle. The paint spraying device comprises a box body, a supporting plate is fixedly connected to the right side of an inner cavity of the box body, a motor is fixedly connected to the top of the supporting plate, a first trapezoidal gear is fixedly connected to the output end of the motor, and a second trapezoidal gearmeshes with the top of the first trapezoidal gear. The paint spraying device for the hub of the new energy motorcycle has the advantages that the motor, the first trapezoidal gear, the second trapezoidal gear, a rotating shaft, a first bearing, a second bearing, a placement plate and a placement groove are arranged and coordinated for use, so that the problem that the paint spraying efficiency ofan existing paint spraying device for the hub of the new energy motorcycle is low can be solved, the paint spraying efficiency is high, the paint spraying speed is increased in the processing process, the paint spraying time is shortened, the workload of operators is reduced, meanwhile, huge benefits can be brought to the production economy of factories, the use and development of the factories are facilitated, and the paint spraying device is worthy of popularization and use.

The invention discloses a multifunctional art teaching desk which comprises a supporting plate and a desk body. A partition placement plate is arranged in the desk body, the surface of a desk top plate is provided with a groove, two ends in the groove are provided with sleeves, adjusting rods are arranged in the sleeves, a teaching plate is arranged between the adjusting rods, the back face of thedesk top plate is provided with a hydraulic telescopic rod, the extending-out end of the hydraulic telescopic rod is connected with a push plate, the upper end of the supporting plate is provided with a hydraulic cylinder, a piston rod is arranged in the hydraulic cylinder, and the top of the piston rod is fixedly connected with the bottom surface of the desk body. The multifunctional art teaching desk can achieve teaching while drawing, makes a student better master drawing details, improves the teaching quality, is complete in function, is easy to adjust in height and strong in flexibilityand provides convenience for a teacher to use in teaching, and garbage produced in the drawing teaching process is convenient to clear.

The invention discloses a waste packaging molding device, which comprises a mounting plate, a conveyor belt, a supporting leg, an extruding plate, a cover plate, a lift, buckles, a fixed rod, a movable column, a frame, a rotating shaft, a roller, a motor and a bearing. The beneficial effects of the invention are: by installing a frame at one end of the conveyor belt and welding a conical fixing rod on the frame, the loading bag can be placed stably at one end of the conveyor belt to load waste such as cardboard plastic bottles on the conveyor belt. The lower extruding plate can move freely under the drive of the elevator, and the bottom is in contact with the waste on the conveyor belt. The rotating shaft and the roller at the bottom of the squeeze plate can squeeze the cardboard plastic bottles and other wastes on the conveyor belt, so that the deformation volume of the cardboard plastic bottles and other wastes becomes smaller, which is convenient for storage and placement. The device can not only flatten wastes such as cardboard plastic bottles and reduce their volume, but also pack waste such as cardboard plastic bottles on the transfer bag and place them in the loading bag.

The invention discloses a dot painting device facilitating diamond picture operation. The dot painting device comprises a device body, wherein the device body is mainly composed of a pen slot, a protective cover A, a placement plate, placement grooves, a protective cover B, an insert bit groove, an accommodating cavity, a clamping block and a baffle, wherein the pen slot is formed in the device body, a dot painting pen is arranged in the pen slot, the protective cover A is arranged on the outer side of the pen slot, a rotary shaft is arranged at the end of the protective cover A, the placement plate is further arranged on the device body, the protective cover B is arranged between the two placement grooves, the accommodating cavity is formed in the device body, and the clamping block is arranged at the upper end of the side face of the bottom of the device body. The dot painting device is simple in structure and convenient to use, the dot painting efficiency of a diamond picture is greatly improved, frequent 'diamond' replacement is avoided, a large amount of time is saved, the dot painting operation is wholly smooth, the dot painting speed is high, and the dot painting device is small in size and convenient to place and store.