974 results about "Vertical edge" patented technology

A thin film type cargo containment system datum line marking method based on an unmanned aerial vehicle rapidly and accurately completes marking construction work of a thin film type containment system, and theoretical coordinate values of 16 vertexes, theoretical side lengths of 8 longitudinal sides, theoretical coordinates of a datum axis loop line and the theoretical length of a liquid dome in the X direction are obtained according to a design drawing; and actual coordinate values of 16 vertexes, actual side lengths of 8 longitudinal sides, actual coordinates of a reference axis loop line and the actual length of the liquid dome in the X direction are obtained through point cloud processing software, and when the difference value between the actual measured value and the theoretical value of the cargo hold does not exceed the inspection length, all optimal loop lines are selected for spraying. The cargo compartment modeling method based on the unmanned aerial vehicle laser radar surveying and mapping technology is more accurate, scribing work of the thin film compartment can be completed without an installation platform or depending on GTT scribing drawings and software of the GTT scribing drawings, manual construction work and types of scribing equipment tools are greatly reduced, the scribing precision is improved, and the scribing construction period is shortened.

The invention relates to a full-automatic bag feeding packaging machine, and relates to the technical field of packaging equipment, the full-automatic bag feeding packaging machine comprises a base table, a rotating disc and a driving part, the rotating disc is provided with a clamping part, and the base table is sequentially provided with a bag feeding assembly, a bag opening assembly, a material injection assembly, a heat sealing assembly and a discharging assembly around the rotating disc; the bag feeding assembly comprises a clamping piece, two vertical plates and a lifting piece located between the two vertical plates. A barrier plate is fixedly arranged on the vertical edge of the same side of the two vertical plates, and a limiting piece is arranged on the vertical edge away from the barrier plate; the clamping piece comprises a connecting piece, a cross rod and a first power piece, a fixing block is fixedly arranged on the cross rod, and a clamping suction cup and a pressing part are fixedly arranged on the fixing block; an output shaft is fixedly arranged on the first power piece, and the first power piece drives the fixing block to rotate around the output shaft through the connecting piece. When the clamping suction cups clamp the uppermost packaging bag, the pressing part can press the upper side face of the packaging bag to enable the packaging bag to be bent, and the situation that two packaging bags are clamped at the same time due to electrostatic adsorption is reduced.

The invention relates to the technical field of spraying, in particular to a spraying device for combined wardrobe production and a spraying method thereof.The spraying device comprises a spraying mechanism, an adjusting mechanism and a turbulent flow mechanism, the spraying mechanism comprises a spraying room, the upper end of the spraying room is fixedly connected with a conveying belt, and lifting hooks are evenly distributed at the lower end of the conveying belt; the lower ends of the lifting hooks are connected with cabinet body hole plates in a hanging mode, movable bases are arranged on the front side and the rear side of the spraying room, driving bases are fixedly connected to the two ends of the sides, close to the cabinet body hole plates, of the upper ends of the movable bases, and the ends, close to the cabinet body hole plates, of the driving bases and the driving ends are fixedly connected with connecting frames. According to the spraying device, spraying can be conducted in the S shape through the spraying head, the surface of a workpiece is more comprehensively and evenly covered with paint particles, it is guaranteed that the vertical edge of a hole of a cabinet hole plate is evenly sprayed, the spraying head swings up and down in the reciprocating movement process, and then the transverse edge of the hole of the cabinet hole plate is evenly sprayed.

The invention relates to the technical field of bridge high pier perpendicularity measurement, in particular to a bridge high pier perpendicularity detection device and method, and the method comprises the following steps: 1, arranging two centering supports at the fixed positions of a pier vertical edge bearing platform, erecting a high-precision laser plumb aligner to project an upward plumb line visible light, according to the bridge high pier perpendicularity detection device and detection method, a pier top support is adjusted to determine a laser receiving target center on the support; then an automatic sighting total station is erected to aim at a pier top prism, the height of a vertical pier is measured, the elevation of the pier top is calculated, the position of a slope changing formwork is calculated, and the slope changing formwork is adjusted to the proper position according to a positioning stay wire; according to the invention, the design is exquisite, the installation operation is simple and visual, the bearing platform can be operated by one person, and the device can be used for accurate positioning, perpendicularity control and vertical height guide of high piers or high-rise buildings.

A golf cart mountable flag assembly for advertising and promotional purposes includes a clamp, a staff, and a flag. The clamp comprises a pair of jaws that can be opened to receive a rod of a canopy of a golf cart and to be closed to secure the clamp to the rod. A socket having an opening is attached to the clamp so that the opening faces upwardly upon the clamp being secured to the rod. The staff has upper and lower ends, with the lower end being selectively insertable into the socket to attach the staff to the socket and with the staff extending substantially vertically relative to a ground surface. The flag comprises a panel, which has a vertical edge, and a sleeve, which is attached to the panel and which extends along the vertical edge. The staff is insertable into the sleeve.

The invention discloses a crankshaft chain wheel burr cleaning device, and relates to the technical field of crankshaft chain wheel machining, according to the technical scheme, the crankshaft chain wheel burr cleaning device comprises a workbench, and a multi-directional cleaning mechanism and a limiting mechanism are arranged at the top of the workbench; the multi-directional cleaning mechanism comprises an electric push rod which is fixedly arranged at the bottom of the workbench, the output end of the electric push rod is fixedly connected with a second connecting shell, a third motor is fixedly arranged on one side of the second connecting shell, the output end of the third motor is fixedly connected with a second lead screw, and the screwing directions of threads on the two sides of the exterior of the second lead screw are opposite. The crankshaft chain wheel burr cleaning device has the beneficial effects that automatic and efficient cleaning of crankshaft chain wheel burrs is achieved, the cleaning angle of the cleaning roller can be accurately adjusted through the design of the multi-directional cleaning mechanism, it is guaranteed that burrs on the vertical edges, the top face and the bottom face of chain wheel teeth are comprehensively and thoroughly cleaned, the cleaning quality is improved, the cleaning direction of the cleaning assembly is flexibly changed, and the cleaning efficiency is improved. The universality and applicability of the device are improved, and the labor cost is reduced.

A base assembly, capable of restricting an edge part of a cover from moving, includes: a base, a gasket and a cover, in which the base includes a fixing part and an attaching part, the gasket is attached to the fixing part, the cover is attached at the fixing part and the attaching part, and a lower edge part of the cover facing lower edge parts of the fixing part and the gasket has a vertical edge part, the lower edge part of the gasket has a horizontal edge part, stopper parts to restrict the vertical edge part from moving with respect to the lower edge part of the base are provided at the base and the cover, respectively, and the stopper part on the base's side is provided vertically, and the stopper part on the cover's side is provided horizontally.

The invention relates to the technical field of coal mine supporting, in particular to a segmented collaborative welding process of a top beam hydraulic support. The method comprises the following steps: sequentially welding a plurality of rib plates and paired main rib pre-assemblies on the bottom surface of a top plate step by step, wherein the rib plates and the paired main rib pre-assemblies form the supporting rib assembly; and a first cover plate is arranged between the paired main reinforcement pre-assemblies, and welding is conducted along gaps between the first cover plate and the main reinforcement pre-assemblies to preset sub-welding points determined based on the thickness of the column socket base. And the column nest assembly is arranged on the side, away from the supporting rib assembly, of the first cover plate, and then the vertical edge of the column nest base is connected with the main rib pre-assembly in a welded mode. And the second cover plate is arranged between the column nest base and the first cover plate, and welding connection is carried out. And the first cover plate, the second cover plate and the column nest assembly located in the area below the branch welding points are welded to gaps between the main reinforcement pre-assembly. According to the welding process, the welding stress in the supporting rib assembly can be reduced, and the problem that the welding quality is poor due to superposition of heat affected zones of welding joints is solved.

The invention relates to the technical field of modular wallboards, in particular to a modular building construction component which comprises a frame, a plurality of wallboards, a plurality of sealing strips and a plurality of tensioning structures. The frame comprises a top frame, a bottom frame and a plurality of stand columns vertically arranged between the top frame and the bottom frame. The upper and lower ends of the wallboards are slidably mounted on the top frame and the bottom frame respectively, so that modular assembly is completed; mounting grooves are formed in the vertical edges of the wallboards; sawtooth sealing strips are fixedly mounted in the mounting grooves, and the sealing strips of the adjacent wallboards form a staggered meshing structure when spliced. Two tensioning structures are installed on each sealing strip, the two tensioning structures enable the sealing strips to be in a tensioning state, the straightness of the sealing strips is guaranteed, wrinkles are avoided, and the problem that in the wall splicing process, due to the tooth staggering phenomenon of the two sawtooth-shaped sealing strips and untight attachment, the sealing performance is poor is solved; and the sealing performance is improved.

The invention relates to the technical field of mold cleaning, and discloses a tire mold pattern block cleaning device which comprises a conveying belt and further comprises a U-shaped frame, and the two vertical edges of the U-shaped frame are fixedly installed on the two sides of the top of the conveying belt correspondingly; the plurality of electromagnet plates are uniformly distributed on the surface of the conveying belt, and the electromagnet plates are used for placing tire mold pattern blocks; and the multiple mounting assemblies are mounted at the bottoms of the multiple electromagnet plates and on the conveying belt correspondingly, and the mounting assemblies are used for mounting the electromagnet plates on the conveying belt. The tire mold pattern block cleaning device can continuously perform transverse and longitudinal cleaning on tire mold pattern blocks, and the distances between a plurality of laser heads and the tire mold pattern blocks are the same during transverse or longitudinal cleaning, so that the cleaning effect is ensured, and the situation that the cleaning quality is uneven due to the fact that the distances between the laser heads and the pattern blocks are different during laser head cleaning is avoided; and the use effect of the equipment is improved.

The utility model discloses a paperboard structure and a paper support formed by quickly folding a single-layer paperboard, the paperboard is cut by a cutting die, folds and kerfs are preset, the paperboard comprises a bottom plate, side plates and an inner folding surface, and an embedded bonding lug is used as a first bonding part. Through the exquisite crease design, automatic forming can be achieved through two-way opposite extrusion. The inner folding surface is folded along a preset crease and is bonded for later use, so that the transportation and the storage are convenient; during assembly, by means of bending and fixing of the L-shaped supporting strips, stable strip-shaped vertical edges and a hollow-out supporting frame are formed. According to the design, the end protection buffer frame with the same size can be conveniently and rapidly assembled, and the end protection buffer frame is suitable for supporting and protecting commodities in a carton, has the advantages of efficient production and transportation convenience, small paper consumption and low cost, is high in forming efficiency and easy to operate during use, and greatly improves the labor efficiency and the yield during paper support forming.

The invention relates to the technical field of press machines, and discloses a press machine for plywood production, which comprises a platform and further comprises a U-shaped frame, two vertical edges of the U-shaped frame are fixedly mounted at the top of the platform, and the interior of the platform is hollow; the pressing plate is horizontally arranged between the platform and the transverse edge of the U-shaped frame, and the interior of the pressing plate is hollow; the first adsorption assembly is arranged on the platform, and the first adsorption assembly is used for adsorbing the bottom of the pressed plywood; and the second adsorption assembly is arranged on the pressing plate, and the second adsorption assembly is used for adsorbing the top of the pressed plywood. According to the plywood press-fit equipment, when plywood is pressed, plates at the top and the bottom of the plywood can be automatically adsorbed, in addition, after press-fit is finished, the plywood subjected to press-fit can be automatically subjected to adhesion strength detection, the plywood has a self-detection function, and then the using effect of the equipment is improved.

The invention discloses an asphalt pavement repairing and leveling device and method, and belongs to the technical field of road engineering.The asphalt pavement repairing and leveling device comprises a shell, first supports are arranged at the two ends of the bottom of the shell, leveling rollers are symmetrically arranged at the bottom of the shell along the center, and auxiliary rollers are arranged at the bottom ends of second supports. When a first support is started to move upwards and retract into a shell, the first support moves to drive an auxiliary roller to move downwards through a transmission assembly, so that the auxiliary roller is correspondingly parallel to the vertical edge of the edge of the asphalt pavement, and then when a leveling roller rotates, a second bevel gear, a first bevel gear and a rotating shaft are matched to drive the auxiliary roller to rotate; and the auxiliary roller rotates to flatten the vertical edge of the edge of the asphalt pavement, so that the situation that the overall attractiveness of the pavement and the driving comfort are influenced, the service life of the pavement is shortened and the like due to unevenness of asphalt at the edge of the pavement is avoided.

The invention relates to the technical field of rotor shaft sleeve assembly, and discloses a motor rotor shaft sleeve assembly device which comprises a bottom plate and further comprises a rotary disc, a motor shaft sleeve, a motor shaft sleeve, a motor shaft sleeve, a motor shaft sleeve, a motor shaft sleeve and a motor shaft sleeve, the heating and positioning assembly is arranged on the rotary table, and the heating and positioning assembly is used for positioning the shaft sleeve after the shaft sleeve is heated; the vertical edge of the L-shaped frame is fixedly mounted at the top of the bottom plate; and the positioning press-fitting assembly is used for assembling the rotor and the shaft sleeve. The temperature can be monitored when the shaft sleeve is heated, when the heating temperature reaches a specified value, the shaft sleeve is centered, and the pressing disc drives the rotor to move downwards, so that press fitting of the rotor and the shaft sleeve is achieved, and the situation that the heating temperature of the shaft sleeve is not enough, reaming of the shaft sleeve is not enough, and the press fitting effect of the rotor and the shaft sleeve is poor is avoided; and the use effect of the equipment is improved.

The invention belongs to the field of new material testing equipment, and relates to a composite material vertical impact event damage impedance testing device which at least comprises a base assembly, a vertical impact event damage impedance testing device, a vertical impact event damage impedance testing device and a vertical impact event damage impedance testing device, the clamping plate assembly is installed above the bottom plate and is provided with a fixed plate assembly and a movable plate assembly, a composite material sample is located between the fixed plate assembly and the movable plate assembly, and the impact head assembly is installed above the clamping plate assembly and is used for carrying out an impact damage test. According to the technical scheme, the problems of vertical edge impact and arc edge impact of the composite material are effectively solved, and meanwhile, the test requirements of hemispherical impactors of multiple specifications on straight-edge samples and arc samples of multiple sizes are met; installation is convenient, operation is convenient, and the application range is wide.

The utility model discloses a corrugated carton with reinforced folded corners, which comprises a carton body, the carton body is a rectangular hollow box body, and corner reinforcing components used for reinforcing and supporting the upper and lower corners of the carton body corresponding to the edge positions are vertically arranged at the four vertical edge positions in the carton body. The carton has the beneficial effects that the corner reinforcing assemblies are vertically arranged at the corner positions of the two sides in the carton body, and then the corner reinforcing blocks of the corner reinforcing assemblies are attached to and make contact with the corresponding corners in the carton body, so that the folded corner positions of the carton body can be integrally reinforced; the strength of the corners of the carton body is improved, the situation that the corners are damaged is avoided, meanwhile, the deformation resistance of the carton body is improved, and the situation that the carton body deforms seriously in the using process is avoided.

The utility model relates to a flexible rim, a half-height rim hub and an assembly of the flexible rim and the half-height rim hub. The vertical edge structure of the flexible rim is provided with a special wall thickness and a convex inverted buckle structure, and can extend to a tire bead seat; the half-height rim is provided with a groove back-off and knurling structure; the flexible wheel flange and the hub assembly are matched in an inverted buckling mode and fixed through adhesive, the flexible wheel flange is made of specific components such as TPEE, and the material cost is low. The half-height rim is provided with the hollow structure through extrusion molding and then is welded into the closed ring, the production efficiency is high, and the production cost is low. According to the utility model, the reverse buckle is used for preventing falling off, increasing friction, buffering impact through a hollow structure, protecting the rim through a specific material, and ensuring braking safety through knurling; the flexible rim is good in color and luster, good in texture and more beautiful in appearance; meanwhile, after the tire is inflated, the assembly meets the GB / T 3487 boundary dimension standard, and popularization is convenient.

According to the optical metasurface filter and method for tunable edge directional enhancement, the angle of the metasurface can be rotated in a simple mechanical tuning mode, tuning of the edge enhancement direction of an amplitude or phase sample is achieved, edge filtering in different directions is achieved in an efficient and compact mode, and the optical metasurface filter and method have the advantage of chip-level ultrafast optical calculation. The invention discloses a polarization-sensitive vertical edge detection filter which is constructed by a metasurface and an optical 4F system. The metasurface (10) comprises an amorphous silicon cuboid nano brick unit (1) and a silicon dioxide substrate (2), each amorphous silicon cuboid nano brick unit has a fixed square lattice constant Px = Py = 300nm, a height H = 365nm and designed L = 129nm and W = 90nm, and the amorphous silicon cuboid nano brick units are periodically arranged on the silicon dioxide substrate; the phase is changed by changing the orientation angle theta of the amorphous silicon cuboid nano brick unit, and required phase distribution is completed.

The utility model discloses a strut end connecting structure of an automobile transport ship, which is characterized by comprising a lower strut, the top end of which is connected with the joint of a transverse girder and a longitudinal girder; the two lower anti-fatigue toggle plates are distributed on the two sides of the lower supporting column in the direction of the transverse girder; the vertical edge of the lower anti-fatigue toggle plate is connected with the longitudinal side face of the lower supporting column, and the top edge is connected with the bottom of the transverse girder. The deck is arranged above the transverse girders and the longitudinal girders; the upper supporting column is located over the lower supporting column, and the bottom end of the upper supporting column is connected with the deck; two upper anti-fatigue toggle plates arranged along the longitudinal girders are arranged between the two transverse side faces of the longitudinal girders and the deck. The vertical edge of the upper anti-fatigue toggle plate is connected with the transverse side face of the upper supporting column, and the bottom edge of the upper anti-fatigue toggle plate is connected with the deck. The connecting structure solves the problem of stress concentration at the end of the strut, improves the yield strength and the fatigue strength of the end of the strut, and can improve the overall safety of a ship.

The utility model discloses a groundwater remediation medicament injection device, which belongs to the technical field of groundwater remediation and comprises a mounting bottom plate, the upper end of the mounting bottom plate is fixedly connected with a vertical edge of an L-shaped supporting plate, the outer wall of the vertical edge of the L-shaped supporting plate is detachably connected with a second connecting transverse plate, and the tail end of the second connecting transverse plate is connected with a rotating ring body. A third ring body is mounted in the rotating ring body, a second ring body is connected to the lower end of the third ring body, a plurality of mounting grooves are formed in the bottom of the second ring body, a torsional spring in each mounting groove is rotationally connected with a rotating shaft, the outer wall of each rotating shaft is fixedly connected with a cleaning scraping plate, and the cleaning scraping plates are attached to the outer wall of the injection pipe body; furthermore, when the injection tube body moves upwards, impurities attached to the outer wall of the injection tube body are cleaned, and when the injection tube body reaches the tip part of the injection tube body, the injection tube body can be attached to the tip part of the injection tube body through automatic inward rotation of the torsion spring, so that the tip part of the injection tube body can be cleaned.

The utility model relates to a luggage with an extended function. According to the technical scheme, a canvas bag with an upward opening is sewn on the lower half portion of the rear side wall of a draw-bar box body, the two vertical edges, away from a box body, of the canvas bag are fixedly connected with an expansion structure respectively, the expansion structure comprises sleeves installed on the left side wall and the right side wall in the draw-bar box body, and telescopic columns are movably inserted into the left sleeve and the right sleeve; the telescopic columns penetrate through the rear side wall of the draw-bar box body, the outer ends of the left telescopic column and the right telescopic column are fixedly sleeved with the two ends of the cross rod respectively, limiting columns are evenly arranged on the lower side wall of the cross rod, and supporting legs fixedly sleeve the left telescopic column and the right telescopic column on the front side of the cross rod respectively. The left supporting leg and the right supporting leg are fixedly connected with the two vertical edges, away from the box body, of the canvas bag respectively, canvas covers are sewn on the box body walls at the upper ends of the left telescopic column and the right telescopic column, and the free ends of the canvas covers are hung on the limiting columns. The luggage has the beneficial effects that a soft plane on which a user can sit can be conveniently and quickly expanded, and the use convenience of the luggage is improved.

Shower curtain with a short detachable liner designed for providing an improved functionality and use is disclosed herein. The shower curtain assembly comprises a main curtain and a short liner. In an embodiment, the main curtain includes built-in hooks along its top edge for easy installation on a shower rod. Snap buttons are positioned horizontally along the lower portion of the main curtain and aligns with the top edge of the short liner, providing a secure attachment of the liner to the main curtain. In an embodiment, the short liner may include magnets at its bottom corners or along its bottom edge to maintain a taut profile. Additionally, pull tabs may be provided on vertical edges of the main curtain, facilitating easy handling and adjustment.

A modular frame expandable to form a pet's cage comprises a plurality of modules each of which comprises a substantially quadrangular vertical wall, said modules being arranged adjacently to each other to define the outer shape of the cage, and wherein each vertical edge of each module comprises connecting elements adapted to allow the connection and retention of each vertical wall of a module to a vertical wall of another adjacent module. The modular frame is expandable on a horizontal plane according to a predetermined configuration to form a pet's cage having predetermined shape and dimensions.

The invention relates to the technical field of soil sampling, in particular to a soil sampling device for soil pollution treatment. Comprising a sampling plate and a telescopic support fixedly connected with the lower end of the sampling plate. The lower end of the telescopic support is fixedly connected with a cutter; the upper end of the sampling plate is fixedly connected with a pedal; the pedal extends towards the inner side of the sampling plate and is movably connected with a sampling rod; the lower position of the sampling rod is fixedly connected with a connecting disc; a first unfolding groove is formed in one vertical edge of the sampling plate; the sampling device is folded into a plate shape, so that the sampling plate is expanded and sampled in the circumferential direction after entering the soil, compared with a traditional soil sampling mode, the to-be-sampled soil is not extruded and compressed in the vertical direction, the accuracy of the depth position of the sampled soil is guaranteed, subsequent detection is facilitated, and the sampling efficiency is improved. In addition, the sampling plate can quickly unfold and expose soil on the inner side after sampling, and the soil taking efficiency after sampling is improved.

The invention relates to a power distribution cabinet with low energy consumption and heat dissipation, and relates to the technical field of power distribution cabinets, the power distribution cabinet comprises a cabinet body and a cabinet door, the vertical edge of one side of the cabinet door is hinged to the cabinet body, the edge of the other side of the cabinet body is detachably connected with the cabinet body, and a heat dissipation opening is formed in the side wall of the cabinet body. A protective cover with a downward opening is fixedly arranged on the outer opening edge of the heat dissipation opening of the cabinet body; two vertical plates are oppositely installed on the two opposite vertical inner walls of the cabinet body in the vertical direction, and a plurality of transverse plates are arranged between the two vertical plates. A plurality of kidney-shaped holes are evenly formed in the vertical plate in the vertical direction, and locking screw holes are formed in the two ends of the transverse plate. A locking bolt which penetrates through the waist-shaped hole and then is screwed into the locking screw hole is arranged in the cabinet body; according to the application, when facing electrical elements with different sizes, a worker can quickly adjust the position of the transverse plate to adapt to the installation requirement, so that reasonable layout of the electrical elements and efficient space utilization are ensured.

The invention relates to the field of offshore engineering, and particularly discloses a submerged embankment oscillation water column type anti-wave power generation device which comprises a power generation device body and an L-shaped submerged embankment, the power generation device body comprises an air chamber and an air turbine, the air chamber is a square hollow column, an opening is formed in the bottom end of the air chamber, and an air hole is formed in the top end of the air chamber; the air turbine is arranged in the air hole and converts pneumatic energy flowing through the air hole into electric energy; the air chamber is fixed on the offshore platform, the air hole is formed above the sea surface, the opening is formed below the sea surface, and seawater forms a water column in the air chamber; the L-shaped submerged dike is arranged below the air chamber, the horizontal edge of the L-shaped submerged dike is horizontally placed on the seabed, and the vertical edge of the L-shaped submerged dike is vertical to the seabed and located on the side close to the rear wall of the air chamber. By the adoption of the oscillating water column wave energy power generation device, the wave prevention performance of the device in the full wave period is remarkably enhanced, the coast is effectively protected against erosion, and the energy conversion efficiency of the oscillating water column wave energy power generation device in the long wave period can be improved by means of the characteristic that the submerged breakwater reflects waves.

An apparatus (10) for sizing a box (100) having side walls (102, 103, 104, 105) delimited by vertical edges (106) and a horizontal base wall (101) and containing more than one object. The apparatus (10) comprises a first frame (11) provided with a base (14) configured to support a box (100), and a dimensioning unit (15) comprising a second frame (16) configured to support a cutting and creasing unit (17), the cutting and creasing unit (17) comprising at least one cutting and creasing device (30a), the cutting and creasing device (30a) has a cutting member (32) and a creasing member (33) which can be activated in a coordinated manner with each other.

The utility model relates to the technical field of drying equipment, and discloses drying equipment for a workpiece after electrophoretic coating, which comprises a hanger rail and a drying box with two open ends, a hanger is mounted on the hanger rail, the hanger rail is used for transporting the workpiece to the drying box, and the hanger is used for hanging the electrophoretic workpiece. A plurality of plastic door curtains are installed on a port of the feeding end of the drying box and a port of the discharging end of the drying box, the plastic door curtains are used for sealing the drying box, a plurality of clamping pieces are arranged on the plastic door curtains along the vertical edges of the plastic door curtains, magnets are arranged in the clamping pieces, and the vertical edges of the adjacent plastic door curtains are attracted through the magnets. The utility model has the benefits that the magnets are arranged on the plastic door curtains through the clamping pieces, and the adjacent plastic door curtains are mutually closed, so that the drying box forms a closed space, the loss of heat energy is reduced, the sealing structure is simple, and workpieces subjected to electrophoresis can conveniently enter and exit from the door curtains.

A portable multipurpose subdivision graduation protractor comprises a main ruler, an auxiliary ruler and a precise hinge shaft unit. The main ruler is of a structure similar to a right triangle, two right-angle sides are main ruler arms, a bevel edge is replaced by a 135-degree fold line, and 45-degree, 135-degree and 90-degree external angles are provided and can be directly used as a fixed angle sample plate; the surface of the main ruler is provided with easily-identified fan-shaped distribution scales which are correspondingly arranged in two layers as difference reference lines; parallel step notches are formed in the upper edge of the vertical main ruler arm and are used for small-angle measurement; the auxiliary ruler is of a two-right-angle-side structure, the vertical side is an auxiliary ruler arm, and the auxiliary ruler can also be used as a fixed-angle sample plate. The horizontal side is a pointer arm, the end portion is of a fan-shaped structure, the radius is the same as that of the fan shape of the main ruler, and ruler reading visual errors can be reduced. Various interior angles can be widely measured and mapped, difference group scribed lines are effectively set, and an error conduction chain is shortened due to the fact that the whole ruler is not provided with redundant components. The precision machining problem is solved, and the measurement precision can be further improved.