66 results about "Middle plane" patented technology

The invention discloses a hemispherical harmonic oscillator high-precision equal-mass-density modification method, which comprises the following steps: determining the axis direction of a central anchor post of a hemispherical harmonic oscillator through multi-position detection analysis, and taking the axis direction as a measurement basis; measuring three-dimensional contour point cloud coordinates of the outer spherical surface and the inner spherical surface and eccentric coordinates relative to the axis reference, and establishing actual contour models of the outer spherical surface and the inner spherical surface; a modification area and a corresponding removal thickness are determined, and a three-dimensional modification removal model is established; carrying out three-dimensional continuous modification removal processing on the to-be-modified areas of the outer spherical surface and the inner spherical surface by adopting an etching method; and evaluating a modification result according to the middle surface diameter and thickness distribution of the section circles of the outer spherical surface and the inner spherical surface. According to the invention, the mass trimming of the three-dimensional spherical shell of the hemispherical resonator can be realized, and the hemispherical resonator with relatively symmetrical mass density distribution can be obtained through the combined mass trimming of the outer spherical surface and the inner spherical surface, so that the precision of the hemispherical resonator gyroscope can be improved.

In a first aspect, a cradle of a device for upending of a pile is provided with movable fender pads at respective lateral sides of the cradle. The fender pads form, together with a base support against which the pile rests backwardly during upending, inward surfaces of the cradle defining an internal space inside the cradle for the pile to which radial movement of the supported pile is limited. Each fender pad is controllably movable by one or more fender actuators into slanted fending positions, in which the fender pad slants towards the base support at sharp angles relative to the middle plane. In a second aspect, a pile end support structure has left and right connector beams hinged at an upper end thereof to the cradle and a pile support beam hinged at both ends to the lower ends of the connector beams. The connector hinge axes and the support hinge axes are horizontal when the pivotal structure together with the pile are in the vertical position.

The invention relates to the field of engineering machinery simulation, in particular to a median extraction method based on a normal vector, which comprises the following steps executed in sequence: S1, inputting a three-dimensional model, triangularizing each graph in the three-dimensional model, and obtaining all triangular patches; s2, calculating a normal vector of each triangular patch; s3, calculating a cosine value of an included angle between the normal vectors of the two adjacent triangular patches; s4, according to the cosine value obtained through calculation in the step S3, judging whether two adjacent triangular patches are in the same mid-plane area or not, performing mid-plane screening, and obtaining all mid-planes of the three-dimensional model; s5, calculating a thickness difference value of two adjacent middle surface patches; s6, according to the local thickness difference value, each middle surface of the three-dimensional model is grouped according to the thickness, and a grouping result is output; according to the mid-plane extraction method, manual intervention is not needed, the mid-plane of the three-dimensional model can be automatically identified and extracted, and the efficiency of the simulation modeling process is improved.

The invention relates to the technical field of supporting structures, aims to solve the problems that in the prior art, an out-of-plane supporting structure is diverse in form, free to machine, low in universality and low in standardization and assembly, and provides a movable modular assembly type out-of-plane supporting structure and a manufacturing and using method thereof. The supporting structure comprises a supporting stand column, a supporting inclined rod, a slotting bottom beam, a slotting connecting beam, a slotting expansion beam, a cover plate connecting piece and a lug plate connecting piece. The supporting stand columns are perpendicular to the slotting connecting beams, and the bottoms of the supporting stand columns are adjustably connected with the slotting connecting beams. The side face of the grooving connecting beam is connected with a grooving bottom beam and / or a grooving expansion beam. The slotting expansion beam is directly connected with the slotting connecting beam or is adjustably connected with the slotting connecting beam through a cover plate connecting piece; the movable modular assembly type out-of-plane supporting structure is divided into a heavy out-of-plane supporting structure, a middle out-of-plane supporting structure and a light out-of-plane supporting structure. According to the invention, standardized production and on-site rapid modular assembly can be realized.

A pre-embedded bolt positioning device for a prefabricated stair comprises an aluminum alloy formwork, the aluminum alloy formwork is connected with angle steel through a connecting structure, and the angle steel and the aluminum alloy formwork are jointly connected with and fix a pre-embedded bolt to form an integral device. The lower ends of the embedded bolts are located between the middle plane formwork and the bottom plane formwork, concrete is cast in place between the middle plane formwork and the bottom plane formwork, and the lower ends of the embedded bolts are located in the cast-in-place concrete. After the concrete is poured and reaches the standard, the aluminum alloy formwork and the angle steel are dismantled (pulled out through the through holes in movable fit), and the embedded bolts are fixed in the solidified concrete. The positioning device for the pre-embedded bolt of the prefabricated stair is simple and reasonable in structure, and disturbance of concrete vibration and pouring impact load on positioning of the pre-embedded bolt does not exist; the embedded bolt is accurate in positioning and firm in fixation, the problem that the installation quality of the prefabricated staircase is affected by re-drilling due to inaccurate positioning is solved, the construction efficiency is improved by using the positioning device for the embedded bolt of the prefabricated staircase, the positioning device can be recycled, and the labor and time cost is saved.

A tire changer apparatus includes: a base, a wheel-holder configured to rotate a wheel around a rotation axis, a first and second column emerging from the base, a first device having an extensible arm carrying a tool, a second device having a respective extensible arm carrying a tool opposite the tool of the first device with respect to an ideal middle plane of the apparatus. The tire changer apparatus further includes: a first and a second bar respectively connecting the arms of the first and second devices, a transmission which connects the first and the second bar to synchronize the movement of the arms of the first and second devices.

The application discloses a nuclear power tunnel marine organism cleaning device and system, which comprises a movable main body device, a cleaning and gathering device and a conveying device arranged on the main body device respectively, and comprises profiled side plates arranged on both sides of the front end of the main body device. The bottom of the profiled side plate is used for being attached to the inner wall of the tunnel, the profiled side plate is used for cleaning marine organisms on the inner wall of the tunnel in a flat pushing mode under the advancement of the main body device, and the marine organisms peeled off during the cleaning are gathered on the middle plane of the bottom of the tunnel. The collecting device is arranged at the rear end between the two profiled side plates, and is used for collecting the marine organisms gathered on the middle plane of the bottom of the tunnel to the conveying device under the advancement of the main body device.

The invention provides a refrigerator which comprises a refrigerator body, a door body with a middle plane and a hinge assembly connecting the refrigerator body and the door body. The hinge assembly comprises a first shaft and a second shaft which are fixed on the refrigerator body, and a guide part and a guide part which are arranged on the door body; the first shaft is matched with the guide part, and the second shaft is matched with the guide part; the distance between the middle plane and the door front wall is equal to that between the middle plane and the door rear wall; in the whole process that the door body is opened to the angle G3 and opened to the eighth angle G8, the axis center point I moves relative to the door body to form an axis center point track line, two intersection points are formed between the axis center point track line and the middle plane, the axis center point I is close to the middle plane, and the ratio of G3 to G8 is not larger than 0.2; according to the refrigerator, when the door body is opened, the door body does not interfere with the containing cabinet, the door body can be opened to the obtuse angle in the containing cabinet, the door body can be completely opened in the containing cabinet, and a user can conveniently take and place articles.

The utility model relates to a connecting structure of a split face of a double-shell multi-stage pump, which comprises an inner shell and an outer cylinder sleeved on the outer side of the inner shell, the outer cylinder is provided with an inlet flange and an outlet flange, the outer cylinder and a pump cover jointly form a sealing cavity, and the inner shell is sealed in the sealing cavity; the rotor part is arranged in the inner shell and forms a flow passage part of the pump together with the transition flow channel of the inner shell; the inner shell comprises an upper shell body and a lower shell body, and the upper shell body and the lower shell body are arranged in a central symmetry mode. An axially split flange face is arranged between the upper shell and the lower shell, and connecting devices are arranged on the two sides of the axially split flange face; the four corners of the middle opening face are each provided with a limiting mechanism. An inner shell anti-rotation positioning block is arranged on the end face of the high-pressure side of the inner shell, and an inner shell circumferential positioning block is arranged on the middle plane of the upper shell and the middle plane of the lower shell. The radial size of the inner shell is reduced, so that the radial size of the whole pump is small, and the transportation and installation space is reduced; the weight of the pump body and the cost are reduced. According to the utility model, the connection mode of the split surface reduces the casting difficulty of the split surface of the inner shell.

The invention provides a reconfigurable parallel mechanism capable of switching joint rehabilitation modes and a design method thereof.The reconfigurable parallel mechanism comprises a first motion branch chain, a second motion branch chain, a third motion branch chain, a movable platform and a fixed platform, and the movable platform is connected with the fixed platform through the first motion branch chain, the second motion branch chain and the third motion branch chain; the first motion branch chain and the second motion branch chain are both of a CRC structure, the third motion branch chain is of a CCC structure, and motion pairs, fixedly connected with the movable platform and the fixed platform, of all the motion branch chains are vertically symmetrical along the middle plane. By means of rapid switching of a two-rotation and one-movement ankle joint rehabilitation mode and a two-movement and one-rotation knee joint rehabilitation mode, configuration reconfiguration of the parallel mechanism is achieved, operation is simple, the motion trail of the reconfigurable parallel mechanism coincides with the joint motion axis, and the parallel mechanism has the advantages of being high in rigidity and precision.

The invention provides an analogy simplified analysis method and device for a worm grinding wheel grinding gear and a medium, belongs to the field of grinding machining, deduces and calculates a single-time grinding material removal area of a specific tooth surface through analysis of movement and contact behaviors on a middle plane, and calculates a single-time grinding material removal area of the specific tooth surface on the basis of a material removal rate equivalent principle. The worm grinding wheel gear grinding process is equivalently simplified into plane grinding. According to the method, equivalence of movement and contact behaviors in the grinding process is considered, grinding force and thermal effect equivalent analysis is achieved based on the material removal rate equivalent principle, and obtained equivalent plane grinding process parameters directly reflect the grinding behavior, grinding force and thermal characteristics of a worm grinding wheel grinding gear; the complex worm grinding wheel gear grinding process can be subjected to equivalent simplified research on a plane grinding platform, the experiment cost is reduced, experiment result analysis is simplified, and optimization analysis of worm grinding wheel gear grinding process parameters is facilitated.

A B-rep processing method for performing a structural simulation of a mechanical part is disclosed. The method includes providing a mid-plane of a B-rep representation of the part. Each mid-plane represents a thin portion. The method includes calculating a bond line corresponding to a respective bond of the respective mid-plane based on a boundary line of the respective mid-plane. The method includes determining one or more groups. Each group contains an end of the bond wire to be connected. One or more groups are determined by identifying connection boundary lines corresponding to the bond lines. The method includes, for each determined set of ends, determining a plurality of junction points. The multi-junction point is a connecting point of the tail end. The method includes connecting the bond wire using the determined multiple bond points. The method includes connecting a mid-plane to a connected bond wire.

The invention relates to the technical field of grinding equipment, in particular to a grinding device for bearing roller machining, which comprises a rack and a cylindrical grinding wheel, the working surface of the cylindrical grinding wheel is a spherical cambered surface, and the grinding device further comprises a rotating frame, a first rotating shaft, a second rotating shaft, a first rotating shaft and a second rotating shaft, the center line of the cylindrical grinding wheel, the center line of the roller body and the first axis are vertically arranged in pairs; the plane where the first axis and the center line of the cylindrical grinding wheel are located is a middle face, the swing amplitude of the rotating frame around the first axis is symmetrically distributed on the two sides of the middle face, and the roller body exceeds the edge of the cylindrical grinding wheel along with swing. The center of a base circle of the roller body coincides with the center of sphere of the spherical cambered surface, and the first axis passes through the center of the base circle of the roller body. In the swinging process of the rotating frame, the roller body passes through the whole spherical cambered surface, so that the working surface of the cylindrical grinding wheel is uniformly abraded.

The utility model discloses an anti-deformation floor deformation joint cover plate made of rigid materials, which comprises a deformation joint cover plate erected between two building bodies, and the deformation joint cover plate comprises a fixed plate, a tooth-shaped plate and a movable plate; the fixing plate is symmetrically designed and fixed to a building through fixing bolts, a slope is arranged at one end of the fixing plate, a sliding groove is formed in the other end of the fixing plate in a downward extending mode, and tooth-shaped grooves equal in interval and length are formed in the middle of the fixing plate. The tooth-shaped plate is symmetrically designed, one end of the tooth-shaped plate is a tooth-shaped end matched with the middle part of the fixed plate, and the other end of the tooth-shaped plate is a connecting section connected with the movable plate; the movable plate is in the middle plane design, the two ends of the movable plate extend downwards to be provided with sliding ends and are arranged in the sliding grooves in a sliding mode, and grooves used in cooperation with the connecting sections are formed in the connecting positions of the plane and the sliding ends. Through the arrangement of the fixed plate, the tooth-shaped plate and the movable plate, under the bearing condition, the function of adapting to deformation joint changes is achieved, and deformation and damage of the cover plate are prevented.

The invention belongs to the technical field of mechanical engineering lubrication, and particularly relates to a sliding bearing based on a non-uniform discrete magnetic field. Ni rows of magnet arrays are uniformly distributed on the lining in the circumferential direction of the lining, and mj permanent magnets are assembled on each row of magnet arrays at equal intervals; the magnetizing intensities of the permanent magnets sequentially arranged along the two sides of the axis are gradually reduced from the middle plane of the axis of the bushing; the magnetizing intensity of the permanent magnets in the magnet arrays which are sequentially arranged from the bottom of the bushing to the top along the circumferential side wall of the bushing is gradually reduced step by step; therefore, in the mj * ni permanent magnets which are uniformly arranged, the magnetizing intensities of the permanent magnets corresponding to the two adjacent columns and the two adjacent rows are equal and different; a non-uniform discrete magnetic field is formed through the mj * ni permanent magnets, when the rotating shaft rotates at a high speed or bears a large load, the thickness change of a lubricating oil film caused by eccentricity can be effectively inhibited, the thickness of the minimum oil film is increased, the thickness of the lubricating oil film tends to be uniform on the whole, and the lubricating effect is improved.

The utility model discloses a belt conveyor driving connecting device. The technical problem that a motor of an existing belt conveyor driving device cannot be coaxially connected with a coupler and a speed reducer during replacement is solved. The L-shaped seat body is provided with a bottom plate and a vertical plate, the two sliding grooves are formed in the bottom plate, the sliding pieces are correspondingly embedded in the sliding grooves in a sliding mode, and the seat plate correspondingly slides along with the sliding pieces. The sliding piece comprises two sliding blocks which are embedded in the sliding grooves in a sliding mode respectively, guide columns which are embedded in the strip-shaped sliding holes in a sliding mode are vertically arranged at the tops of the sliding blocks, a connecting plate is fixedly arranged between the two sliding blocks, and an adjusting stud is vertically arranged in the middle of the connecting plate; an adjusting sleeve and a guide sleeve are respectively arranged at the corresponding positions of the bottom of the seat plate; the adjusting stud is in threaded connection with an adjusting nut; a displacement screw is arranged along the symmetrical middle face of the two sliding grooves, and a displacement sleeve is arranged at the bottom of the connecting plate. The device has the advantages of being high in adaptability, convenient to adjust, stable in supporting and the like.

The present application discloses a convenient tunnel drying machine for vermicelli, comprising: a feeding section, a drying section, and a discharging section, wherein the feeding section is arranged on one side of the drying section; the discharging section is arranged on the other side of the drying section; a plurality of middle-section ventilation components are arranged on the middle section of the drying rack in the Z direction, and each middle-section ventilation component is arranged in the drying rack at intervals along the Y direction. By arranging a plurality of fans on the plane of the middle section in the Z direction of the drying rack, the air flow rate in the plane inside the drying rack is increased, the temperature in the area is reduced, and a hard shell is avoided from forming on the periphery or surface of vermicelli, and a channel is reserved for the overflow of moisture contained in the central area of ​​the powder cake and the inside of the vermicelli, and by accelerating the air flow, the overflowing wet air leaves the surface of the powder cake in time, the internal moisture migration rate is increased, and the outer wall of the powder cake is avoided from being scorched, the product quality is improved, and the overall moisture content of the powder cake is guaranteed to meet the requirements.

The present invention belongs to the field of the processing of the return device of a centrifugal fan, and particularly relates to a coaxial alignment method for the return device of a centrifugal fan, comprising the following steps: Step 1: Make the middle plane of the coaxial positioning table closely abut against the vertical workbench of the radial drilling machine; Step 2: Make the middle planes of the upper disc semi-circle and the lower disc semi-circle also closely abut against the vertical workbench and stack them up and down; Step 3: Position the upper processing surface and the lower processing surface by using the coaxial positioning table; Step 4: At the bottom edge of the lower disc semi-circle, fix it with a pressing plate, a fastening pad and a fastener; Step 5: Use the radial drilling machine to process fixing holes at the designated positions on the upper disc semi-circle, penetrate the fixing holes through the upper disc semi-circle and the lower disc semi-circle, and fix them with a bolt group; Step 6: Then repeat Steps 1 to 5 to also fix the other half of the upper disc semi-circle and the lower disc semi-circle with a bolt group; Step 7: Fix and clamp the two groups of upper and lower disc semi-circles on a lathe, and machine the upper processing surface and the lower processing surface on the lathe.

The present application relates to the technical field of freight car frame, and proposes a truss type highway-railway dual-purpose freight car frame, which comprises a three-dimensional truss, a highway walking system suspension and a traction frame. The three-dimensional truss comprises a middle plane truss, side plane trusses and a plurality of transverse connecting beams. Each of the side plane trusses and the middle plane truss has two. The middle plane truss is connected by the transverse connecting beams. The two side plane trusses are respectively connected to the two sides of the middle plane truss. The bottom of each of the two side plane trusses has a plurality of arc-shaped grooves. The side plane truss further has a fixing part for fixing a railway walking system. Through the above technical solution, the problem of reducing the weight of the freight car frame and realizing highway-railway dual-purpose is solved.

The application discloses a vertical scallion processing device, which comprises a whole base frame including a middle plane A and an upper plane B; a center rotating shaft rotating assembly is arranged on the plane A, and a plurality of acrylic cylinders for placing scallions are arranged on the center rotating shaft rotating assembly; a cutter assembly is arranged on the plane A and the plane B, and is used for cutting two ends of the scallions; a collecting assembly is used for cleaning and collecting the cut scallion heads; a rotating telescopic brush assembly is used for brushing away the scallion waste skins; a packaging assembly is arranged below the plane A, and is used for packaging the scallions; a pressure sensor weighing assembly is arranged below the plane A, and is used for clamping and weighing the packaged scallions; a labeling assembly is arranged below the plane A, and is used for labeling the weighed and packaged scallions; and a sorting assembly is arranged below the pressure sensor weighing assembly, and is used for classifying and placing the labeled scallions. The application solves the problems that the current manual scallion processing procedure is complicated, and the current scallion processing device has single functions and too many manual operation links.

The present invention provides an output lever and its assembly method, a mechanical cam shed forming mechanism, and a loom. The output lever has cam follower rollers and includes two follower rollers connected to a body. The body defines a middle plane and includes a central portion having two opposite surfaces and two attachment portions, the attachment portions being connected to the respective follower rollers by respective attachment means. The attachment means includes inner and outer fasteners each including one or more flanges. The flanges are each formed by a plate and are supported against each other in parallel planes. Each follower roller is U-shapedly mounted between the inner and outer fasteners such that the contact surfaces of the two follower rollers are on opposite sides of the middle plane. The first follower roller is attached to a first attachment portion of the two attachment portions including two opposite surfaces by a first attachment means, the opposite surfaces being connected by a flange, separated by a distance equal to the thickness of the central portion, and each coplanar with a respective surface of the central portion. The contact surface of the first follower roller is oppositely positioned with respect to the edge of the first attachment portion.

The utility model provides a sheet bar, along the length direction of the sheet bar, the two ends of the sheet bar are flow guide areas, the middle part of the sheet bar is a main heat exchange area, the flow guide areas are provided with medium inlets and outlets and flow guide ribs enabling media to be uniformly distributed in the width direction of the sheet bar, and the main heat exchange area is provided with a plurality of heat exchange units. The heat exchange units are arranged in an array mode in the length direction and the width direction of the sheet bar, each heat exchange unit is provided with a plurality of protruding tops and a plurality of concave bottoms, the tops and the bottoms are connected through side faces, the tops and the bottoms are welding parts used for being welded to adjacent sheet bars, and the welding parts are welded to the adjacent sheet bars. Every two adjacent bottoms are connected through a slope-shaped connecting part, a horizontally-arranged middle plane is arranged on each slope-shaped connecting part, and the middle planes are connected with the side faces of the heat exchange units through transition curved surfaces. The utility model further provides a heat exchanger which comprises a heat exchange core body, the heat exchange core body comprises a plurality of plates, and the plates are sequentially welded in the set direction.

The invention relates to a radial tyre for a heavy vehicle of the heavy or civil engineering type, comprising two working layers (51, 52) comprising metal reinforcing elements forming an angle with the circumferential direction (XX ') of at least 15 DEG and at most 45 DEG, and at least one hoop layer (41, 42). The angle A formed by the metal reinforcing elements (411) included in each hoop layer with the circumferential direction (XX ') varies depending on the axial position. The angles Ae1, Ae2 of the two axial ends (412, 413) of the hoop layer (41, 42) have the same direction and have absolute values at most equal to 10 degrees. The angle A has a maximum absolute value Am at a position at an axial distance from the median plane (M) at most equal to 15% of the axial width of the hoop layer, Am being at least equal to the average value of the absolute values of the angles Ae1, Ae2 plus 10 degrees.

The invention relates to the field of gantry crane construction, and discloses a manufacturing process of a rigid leg of a gantry crane, which comprises the following steps: step 1, manufacturing a fishtail section in a segmented manner, A1, manufacturing a fishtail bottom plane in a segmented manner, A2, assembling and welding a partition plate and a T row, A3, hoisting a bottom plate and a side plate plane in a segmented manner, A4, hoisting a top middle plane in a segmented manner, A5, assembling and welding a lug plate assembly, step 2, manufacturing a rigid leg vertical segment, b1, manufacturing a plane jig frame; the method comprises the following steps of S1, rigid leg assembling, B2, rigid leg bottom plane segmented positioning, B3, side plane segmented hoisting, B4, other side plane segmented hoisting, B5, top plane segmented hoisting and III, rigid leg assembling, and C1, the assembling sequence is as follows: firstly, rigid leg vertical segments G2 and G3 are assembled into G23, and rigid leg vertical segments G4 and G5 are assembled into G45; then, the three large segments G1, G23 and G45 of the fishtail segment are folded, and the segments are positioned through flat cars. The welding precision is improved, and the overall construction cost is reduced.

A connection device for a pipe (4) provided with ribs on the circumference has a pipe receptacle (1) with a receptacle opening for accommodating one end of the pipe (4) and at least one locking element (3) for fixing the pipe (4) in the pipe receptacle (1). The pipe receptacle (1) has a longitudinal middle plane (M) which runs through the receptacle opening. The locking element (3) has a first portion (S1) which allows movement of at least a portion of the locking element relative to the pipe receptacle (1) and a second portion (S2) which is configured for engaging into a corrugation groove (41) of the pipe (4) provided with ribs on the circumference. The first portion (S1) is closer to the longitudinal middle plane (M) than the second portion (S2) at least when the pipe (4) is introduced and fixed. The connection device according to the invention enables simple, sealed and secure fixing of the pipe.

The embodiment of the utility model discloses an electronic device, which is characterized in that a first branch and a second branch which extend towards different sides of a middle plane are arranged on a main supporting piece provided with a display screen, a first sound channel loudspeaker is arranged on the first branch, and a second sound channel loudspeaker is arranged on the second branch. A hardware structure capable of playing left channel and right channel audio respectively is provided. The control circuit can control the first sound channel loudspeaker to play left sound channel audio and control the second sound channel loudspeaker to play right sound channel audio, so that independent output of the left sound channel and the right sound channel can be realized, and sound field playback of the electronic equipment has good stereoscopic impression.

The present invention discloses a segmented machining method for a large four-lobe shell workpiece, which includes rough milling the horizontal middle planes of four sub-shells respectively and milling the reference plane; fixing the two sub-shells on the same side of the vertical middle plane in a circular manner and finishing the vertical middle plane and the vertical end face; assembling and fixing the two sub-shells on the same side of the horizontal middle plane and finishing the horizontal middle plane, the bearing seat, the vertical end face and the reference inner hole of the vertical end face; clamping and fixing the two sub-shells on the same side of the vertical middle plane on the workbench respectively and precision turning the vertical end face, the inner hole and the inner hole shoulder face; fixing the two sub-shells on the lower side of the horizontal middle plane by closing them together left and right, assembling the four sub-shells with the fixed seats respectively, hoisting the two sub-shells on the upper side of the horizontal middle plane to the upper part of the corresponding sub-shells respectively and fixing them in a circular manner. The present invention effectively reduces the machining height and makes full use of the existing machining equipment.

Water closet with a bowl (1) and a rinsing water supply (5, 6) which ends in an inlet opening (7) into the bowl, wherein the bowl's inner shape (1) has a first vertical mid-plane (M1), wherein the vertical mid-plane (M1) is, in ordinary installation in front of a straight wall, perpendicular to this mounting wall and, in the installed state of the toilet, conceptually divides a water drain and a user sitting on the toilet in the middle, i.e., is perpendicular to a second vertical mid-plane (M2) which divides the toilet into a front and a rear area, wherein a purely top-side supply of rinsing water into the bowl is provided, i.e. without an inlet opening below a third horizontal median plane (M3) of the bowl shape with respect to its total height including the siphon, i.e. a median plane (M3) running horizontally and otherwise through the center of the entire vertical extent of the bowl's inner shape including the siphon, and exactly one inlet opening (7) is provided above the third median plane (M3) of the bowl's inner shape, wherein the rinsing water supply (5, 6) and the inlet opening (7) are designed such that the rinsing water flows into the bowl (1) with a predominantly tangential velocity component with respect to the bowl's inner shape and undergoes a rotating motion in the bowl (1), wherein the bowl's inner shape has no rim, i.e. no circumferential channel for rinsing water with downward-facing inlet openings for the flow of rinsing water into the bowl (1), characterized by that the bowl's internal shape (1) has an asymmetrical form with respect to the first vertical median plane (M1), even apart from any flushing water inlet openings, such that the bowl's internal shape defines a flow path for the flushing water between an outer concave edge (8) and an inner convex edge (9), with respect to vertical sections through the bowl's internal shape to the center of a water level (WS) in a siphon of the bowl (1), which flow path is continuous with respect to the vertical sections and is inclined relatively shallowly inwards in relation to the rest of the bowl's internal shape and thereby descends monotonically around the water level (WS) and is thus lower on one side of the median plane (M1) than on the other and thus superimposes a bowl-shaped downward movement on the rotating flushing water movement,The bowl's inner shape also adds a downward vertical movement component. and by the fact that the water closet has a static siphon (2).

A cable stripping device comprises a rack, a lifting frame installed on the rack in an up-down sliding mode, a first height adjusting structure installed between the rack and the lifting frame, an upper rotating shaft rotationally installed on the lifting frame, an upper V-shaped groove wheel fixedly installed on the upper rotating shaft, and a lower rotating shaft rotationally installed on the rack and located below the lifting frame. An upper V-shaped groove wheel is fixedly installed on the upper rotating shaft, a lower V-shaped groove wheel is fixedly installed on the lower rotating shaft, the upper V-shaped groove wheel and the lower V-shaped groove wheel are arranged in an up-down opposite mode, a cutter is installed on the portion, located on the front side of the lifting frame, of the rack in an up-down sliding mode, the cutter is located on the vertical split face of the upper V-shaped groove wheel and the lower V-shaped groove wheel, and a second height adjusting structure is installed between the rack and the cutter. The cable stripping device can be used for stripping cables with different diameters and different insulation skin thicknesses, and is wide in application range.

An electric heater (1) for a vehicle, suitable for heating a liquid passing through said heater, comprising:-a body (2) made of a die-cast metal material; -at least one resistor (3) bonded at least partially along a first median plane (X) of the body (2); an inlet portion (10) and an outlet portion (11) for the liquid, both arranged on the same side of the heater; -a first flow path (4) for the liquid, from an inlet portion (10) to an outlet portion (11), formed on a first face of said body (2), arranged on a first side of said first median plane (X); -a second flow path (5) for the liquid, from the inlet portion (10) to the outlet portion (11), formed on a second face of the body (2), arranged on a second side of the first median plane (X) opposite to the first side; wherein the first flow path (4) and the second flow path (5) are arranged symmetrically with respect to the first median plane (X) and with respect to a second median plane (Y) of the body (2) perpendicular to the first median plane (X).