130 results about "Left convex" patented technology

The invention discloses a novel assembling type precast concrete urban comprehensive pipe gallery and a construction method thereof. The novel assembling type precast concrete urban comprehensive pipe gallery comprises a plurality of inverted u-shaped cover plates and a plurality of substrate plates, wherein each inverted u-shaped cover plate comprises a cross plate, a left vertical plate and a right vertical plate; each substrate plate comprises a bottom plate, a left convex plate and a right convex plate; the middle position of each left convex plate and each right convex plate is provided with troughs; each left vertical plate and each right vertical plate are respectively installed in each left convex plate and each right convex plate; the middle position of each bottom plate is provided with a central drain. The construction method of the novel assembling type precast concrete urban comprehensive pipe gallery comprises the following steps: preparing prefabticated members; excavating and timbering a foundation pit; laying a cushion ply; connecting the inverted u-shaped cover plates with the substrate plates; connecting the inverted u-shaped cover plates, and connecting the substrate plates; tensioning, smearing gaps, backfilling and carrying out form stripping. The novel assembling type precast concrete urban comprehensive pipe gallery has the advantages of convenience in transportation, construction and maintenance, simpleness in operation and high construction efficiency, and the structural integrity and stability of a gallery body can be improved, and the water resistance and water discharging performances of the pipe gallery can be improved.

The invention discloses a rotary extrusion forming die for multiple inner annular ribs of a cylindrical workpiece. The rotary extrusion forming die comprises a split convex die, an inner shape imitating forming sleeve, a rotating device, a floating device, an upper die assembly connected with the upper die holder and a concave die connected with a lower die holder; the split convex die comprises aleft convex die body and a right convex die body, the opposite side walls of the left convex die body and the right convex die body are slopes, and the inner shape imitating forming sleeve is fixed to the side walls outside the slopes of the left convex die body and the right convex die body; the upper die assembly comprises a double action press perforated cylinder connector, a wedge block and apush-pull device, the wedge block is embedded between the slopes of the left convex die body and the right convex die body, the double action press perforated cylinder connector is connected to the wedge block, and the push-pull device is used for controlling the left convex die body and the right convex die body to slide on the upper die holder left and right; and the rotating device and the floating device are used for driving the concave die to rotate and vertically float on the lower die holder separately. According to the rotary extrusion forming die for the multiple inner annular ribs of the cylindrical workpiece, the inner shape imitating forming sleeve can be quickly replaced according to the shape and the quantity of the formed inner annular ribs, and the cylindrical workpiece with the large height-diameter ratio, the multiple cross section shape varieties and the high inner annular rib and body strength requirement can be formed at a time.

A therapeutic sleep device worn about an individual's torso and intended to discourage an individual from sleeping in a supine position includes a body securing member and a sleep fin. The body securing member has an interior side and a posterior side. The sleep fin includes a supine-suppression fin providing a right convex surface and a left convex surface tapering from a wider base region to a narrower peak region at which the right and left convex surfaces join at an apex. The apex and at least a portion of the right and left convex surfaces extend beyond said posterior side of the body securing member. A spine indentation formed in the sleep device can help to increase the comfort and improve the securing of the device to a individual.

The invention discloses a rotating extrusion molding method of multi-inner ring ribs of a cylindrical part, and relates to a rotating extrusion molding die of the multi-inner ring ribs of the cylindrical part. The rotating extrusion molding die comprises a fission convex die, an inner-imitation forming molding sleeve, a rotating device, a floating device, an upper die assembly and a concave die; the fission convex die comprises a left convex die and a right convex die, and the upper die assembly comprises a double-acting press machine perforated cylinder joint, a wedge block and a push-and-pull device; after blanking, preparation of a cylinder body or a tube blank and molding preparation are carried out, the concave die drives the blank to rotate, the fission convex die moves down into thecylinder body, the wedge block moves down to separate the left convex die and the right convex die, the left convex die and the right convex die are moved by the push-and-pull device, and the inner-imitation forming molding sleeve extrudes the side wall of the cylinder body, after the extrusion molding is carried out, the wedge block moves up, the fission convex die moves up, and demolding of a workpiece is carried out. According to the rotating extrusion molding method of the multi-inner ring ribs of the cylindrical part, the inner-imitation forming molding sleeve can be quickly replaced according to the shapes and the number of the molded inner ring ribs, and cylindrical workpieces with a large height-diameter ratio, various cross-section shapes and high-strength requirements of the inner ring ribs and the cylinder body can be once-molded.

The invention relates to a packaging device and a packaging box of a plane glass plate used for displaying; wherein, the packaging device comprises an arranging frame; two sides of the arranging frame are fixed with a left convex platform and a right convex platform respectively; the left convex platform and the right convex platform are respectively provided with a left rotation block and a right rotation block which rotate correspondingly to a pin; the rotation blocks are provided with plane glass plate correcting devices used for displaying; the plane glass plate correcting device used for displaying comprises a frame, a motion block, a motion block damping material and a driving cylinder; the packaging box comprises an arranging frame and a packaging box cover; the left rotation block and the right rotation block are provided with a left side surface ejecting device and a right side surface ejecting device respectively; the left side surface ejecting device and the right side surface ejecting device respectively comprise an ejecting device frame, an ejecting block, an ejecting block damping material and an ejecting bolt and can arrange a plurality of plane glass plates used for displays; by using the correcting device, the side edges of the glass plates are orderly piled during the piling process of the glass plate; subsequently, the glass plates are fixed by a side surface ejecting device and an enlacing belt; the packaging device and a packaging box of a plane glass plate used for displaying have the advantages of preventing the damage of the glass plates due to mutual staggering caused by the vibration of the glass plates during the long-distance transport.

The invention discloses a combined examination and diagnosis device for the ultrasonic department. The combined examination and diagnosis device comprises a supporting frame. A rectangular groove is formed in the right side of the supporting frame, rectangular guide rail grooves are formed in the two side faces of the rectangular groove, a left convex surface and a right convex surface of a transverse sliding table are connected in the rectangular guide rail grooves in a sleeved mode, a rectangular longitudinal guide rail groove is formed in the front side face of the transverse sliding table, a protruding part of a longitudinal sliding table is connected in the longitudinal guide rail groove in a sleeved mode, a thread is arranged in the longitudinal sliding table, and a lead screw is connected to the longitudinal sliding table in a sleeved mode through the thread. According to the combined examination and diagnosis device for the ultrasonic department, a driving motor drives the transverse sliding table to move front and back in the rectangular guide rail grooves, a stepping motor drives the longitudinal sliding table to move up and down in the longitudinal guide rail groove, and thus the front-back and up-down positions of an ultrasonic diagnostic apparatus can be adjusted; an operating panel is arranged, and thus a medical worker can observe detection results and perform operation conveniently. When the device is used for performing ultrasonic examination and diagnosis on a patient, the working difficulty of the medical worker is lowered.

The invention discloses a novel motor having waterproof performance. The novel motor comprises an enclosure, a front end cover, a rear end cover and a plurality of bolts, wherein a left convex ring and a right convex ring are respectively arranged at two ends of the enclosure and are integrated, a front end cover convex ring is arranged at one end of the front end cover and is integrally formed with the front end cover, a cover is arranged at the other end of the front end cover, the front end cover convex ring is fixed with the left convex ring by the plurality of bolts, the rear end cover isfixed with the right convex ring by the bolts, an end cover through hole is formed in one end, aside the cover, of the front end cover, an inner convex ring is arranged on an inner wall of the end ofthe front end cover and is integrally formed with the front end cover, an outer convex ring is arranged on an outer wall and is integrally formed with the outer wall, the end cover through hole communicates with inner circles of the inner convex ring and the outer convex ring, a front bearing is arranged at the inner circle of the inner convex ring, a rotation shaft is arranged in the enclosure,one end of the rotation shaft is rotatably connected with the rear end cover by a rear shaft, the other end of the rotation shaft sequentially penetrates through the front bearing, the end cover through hole and the outer convex ring, and the rotation shaft is rotatably connected with the front end cover by the front bearing. The motor has favorable waterproof sealing performance.

The invention belongs to the field of connecting pieces of underground conveying equipment, and in particular, relates to a combined connecting end and a preparation method thereof. The combined connecting end comprises a base (1), a cover plate (2) and a cover plate (3), wherein the cover plate (2) and the cover plate (3) are fixedly connected to the base (1); the upper surface of the base (1) is formed to a step-shaped surface by connecting a left convex plane (1.1) with a right lower concave plane (1.5); a first U-shaped groove (1.2) and a horizontal groove (1.3) are formed in the middle part of the base convex plane (1.1); a sigma-shaped groove (1.6) is formed in the middle part of the low concave plane (1.5); and the first U-shaped groove (1.2), the horizontal groove (1.3) and the sigma-shaped groove (1.6) are communicated. The invention further discloses a manufacturing method of the combined connecting end, and solves the technical problems of complex structure, easy wear in casting and difficult casting of an end in the prior art.

The invention discloses a symmetrical S-shaped flanging die, which comprises an upper die plate, a left convex die, a right convex die and a concave die, wherein the upper die seat is symmetrically provided with a left moving groove and a right moving groove, the left convex die is movably arranged in the left moving groove by a shaft 1, the right convex die is movably arranged in the right moving groove by a shaft 2, the concave die is provided with a left forming groove and a right forming groove, the left side wall of the left forming groove is an inclined edge which is provided with an upper narrow part and a lower wide part, the right side wall of the left forming groove is an inclined edge which is provided with an upper wide part and a lower narrow part, the left side wall and the right side wall of the left forming groove are connected by a semicircular bottom edge, the right forming groove structure and the left forming groove are in a mirror symmetrical way, the left forming groove is matched with the left convex die, and the right forming groove is matched with the right convex die. The symmetrical S-shaped flanging die has the advantage that the S-shaped bending and forming can be completed in a one-time way, and the two times of material return are not needed, so the processing efficiency is high, and the processing performance is high.

The invention discloses a temperature control and dust removal die-cutting machine. The temperature control and dust removal die-cutting machine comprises a box body, a support cross rod, a rack, an upper template, die cutters, a base, a steel plate and a lower template, wherein the box body is arranged at the top of the base; a first hydraulic cylinder is fixed on the support cross rod at the top of the rack; the upper template is fixed at the end part of the piston rod of the first hydraulic cylinder; the plurality of die cutters are mounted on a punching template at the bottom of the upper template; the lower template is arranged under the upper template; an elastic rubber mat and the steel plate are arranged at the top of the lower template; a second hydraulic cylinder is arranged at the bottom of the lower template; a cold air duct and a hot air duct are arranged at the top of the box body; an exhaust duct is connected with a left convex part on the left side of the box body; an intake duct is connected with a right convex part on the right side of the box body; a dust removal ball is connected to the left end of the exhaust duct; and the right end of the intake duct is connected to the air outlet of a circulating fan. By adoption of the temperature control and dust removal die-cutting machine, a paper board is uniformly stressed in the die-cutting process, so that damage of the paper board is reduced; the temperature of the working environment is easy to adjust and control; and the cleaning effect of dust generated by die cutting is excellent.

The invention discloses a new type of motor with high heat dissipation performance, comprising a casing, a front end cover, a rear end cover and a plurality of bolts. The two ends of the casing are respectively provided with a left convex ring and a right convex ring integrally formed with the casing. The front end cover is fixed with the left convex ring through the plurality of bolts. The rear end cover is fixed with the right convex ring by the plurality of bolts. The front end cover is provided with a front end cover through hole, the rear end cover is provided with a rear end cover through hole, and the casing is internally provided with a main shaft. One end of the main shaft passes through the front end cover through hole, and is rotatably connected to the front end cover through afront bearing. The other end of the main shaft passes through the rear end cover through hole and is rotatably connected to the rear end cover through a rear bearing. The main shaft is sleeved with arotor core and fixed thereto. A rotor winding is wound around the rotor core, a stator core fixed to the inner wall of the casing is sleeved on the outer side of the rotor core, a stator winding is wound around the stator core, a plurality of side walls are annularly fixed on the outer surface of the casing, and every two side walls form a cavity. The device has good heat dissipation performance.

The invention relates to a film sticking device, and belongs to the technical field of mobile phone film sticking tools. The film sticking device comprises a shell, convex edges and limiting mechanisms. A containing groove is formed in the center of the shell. The convex edges include a left convex edge and a right convex edge. The limiting mechanisms include a left limiting mechanism and a right limiting mechanism. Two convex edge holes used for containing the left convex edge and the right convex edge and two limiting holes used for containing the left limiting mechanism and the right limiting mechanism are formed in the shell. The left limiting mechanism and the right limiting mechanism are connected with the two limiting holes in a clamped mode correspondingly. The two convex edge holes are symmetrically distributed in the two sides of the containing groove, and the two limiting holes are also symmetrically distributed in the two sides of the containing groove. The film sticking device is ingenious in structural design, and a mobile phone is fixed through the left limiting mechanism and the right limiting mechanism, so that the situation that film sticking is affected by mobile phone shaking is avoided; and a screen protector film is accurately positioned through the left convex edge and the right convex edge, the situation that in the prior art, whether the sticking position of the screen protector film is correct or not is identified through human eyes is changed, the film sticking cycle is shortened, the film sticking accuracy is improved, and the working efficiency is improved for enterprises.

The invention relates to a spoke, in particular to a spoke for a wheel rim of a bicycle or a motorcycle. A combined-type spoke comprises an elbow part, a main body part and a screw tooth part, wherein the outer surface of the main body part is coated with a carbon fiber layer; the outer surface of the main body part is provided with a plurality of ring-shaped grooves; the main body part forms a fishbone shape along the section of the length direction; the section shape of the main body part is a rectangle, an oval or a closed figure formed by an upper horizontal straight line and a lower horizontal straight line which are parallel, and a left convex-outward arc line and a right convex-outward arc line; and the main body part is provided with a plurality of small holes. The combined-type spoke reduces the weight on the basis of ensuring the strength, so as to prevent fracture.

The invention relates to a special adjustable clamp for milling plane, comprising a clamp base, a strip-shaped chute and a trapezoidal groove are respectively provided on the clamp base, and the upper surface of the trapezoidal groove is provided with a circular hole that does not penetrate the bottom surface Two left and right corner pieces are embedded on the upper surface of the trapezoidal groove, respectively, a waist-shaped connecting piece is installed above each corner piece, and left and right convex slides are embedded on the strip chute respectively. Each of the convex slider bosses is connected with a clamping arm respectively, and a push handle capable of rotating the left and right corner pieces is installed on the outer side of the waist-shaped connecting piece, on the front side of the upper surface of the fixture base There is also a semi-circular groove in the middle of the edge, and the shape of the semi-circular groove is a sliding tangent matching structure with the journal where the push handle extends. Well, it has the characteristics of being able to adjust, stabilize and clamp the workpiece to be processed effectively and flexibly at any time.

The invention relates to a hot forging process, in particular to a crosswise-type automatic opening-and-closing mould frame capable of saving raw materials and improving the working efficiency. The crosswise-type automatic opening-and-closing mould frame comprises a convex mould punch, a core mould and a pull rod; the convex mould punch comprises an upper convex mould punch, a left convex mould punch and a right convex mould punch; the core mould comprises a first core mould and a second core mould; the upper convex mould punch is fixedly arranged on the upper working panel of equipment through an upper convex mould fixing plate; the left convex mould punch and the right convex mould punch are respectively arranged on a left convex mould fixing oblique plate seat and a right convex mould fixing oblique plate seat correspondingly and fixedly; two octagonal cone cylindrical inner mould sleeves are arranged in cone cylindrical outer mould sleeves and are respectively connected with T-shaped slide ways tightly; the cone cylindrical outer mould sleeves are fixedly arranged on the lower working panel of the equipment; and the lower parts of cone cylindrical inner mould sleeve resetting guide columns are connected with a material jacking support plate on the lower working panel of the equipment in a matching manner. When the crosswise-type automatic opening-and-closing mould frame is used for assembling different moulds, the purposes of extrusion and formation with deep holes, counter bores and holes in a plurality of directions are achieved, no flash is produced, the formation is fast, and the automatic fall-off of a work piece is realized so that the fetching of the work piece is convenient.

The invention is the press slider roller guide equipment. A plurality of rollers with small axis at the two ends and the flap with two holes movably connect to form a long ring chain that is rotarily equipped on the roller path; the convex edges of the roller path ward the flap; the four vertical brims of the slier has recesses; eight roller paths through the adjusting board are separately fixed at the upper and the lower ends of the recesses by the bolts; the wheels stick to the face of the guide track; the guide track rigidly connects the framework through bolts; the clamping angle of the matching face of the roller path and the adjusting board and the plane of the guide track is 3-5 Deg.; the thick side of the adjusting board has the right and the left convex desks, and the adjusting bolts on the right desk fix the adjusting board on the slider; the adjusting bolts on the left convex desk support the roller path. The invention reduces the clearance, improves the precision of melted components and decreases the frictional resistance and wearing of the guide face.

The invention relates to a glue spraying device capable of adjusting a glue spraying position left and right. The glue spraying device comprises a mounting platform and a controller, wherein a left convex edge and a right convex edge are respectively arranged at the left and right sides of the top of the mounting platform; a conveying belt is mounted between the left convex edge and the right convex edge; the glue spraying device further comprises a first mounting block; the first mounting block is mounted on the left convex edge and the right convex edge; a left-right adjusting device capable of moving a glue spraying gun left and right is further arranged at the front side of the first mounting block; the left-right adjusting device comprises a second mounting block, a moving block for mounting the glue spraying gun, a second servo motor and a threaded rod which is arranged on an output shaft of the second servo motor; the threaded rod penetrates through the moving block; the threaded rod is in thread connection with the moving block; the second mounting block is in the shape of a Chinese character'tu';the moving block is provided with a groove adapted to the shape of the second mounting block; the groove of the moving block is buckled on the second mounting block. The left-right adjusting device can be used for moving the position of the glue spraying gun left and right.

The invention discloses a coiler for an industrial boiler, which comprises a plurality of straight pipes and a plurality of elbows, wherein every two adjacent straight pipes are connected end to end through an elbow, a U-shaped location block with a U-shaped cross section is arranged between every two adjacent straight pipes and is welded and fixed to the outer surface of one of the every two adjacent straight pipes through top ends of a left convex arm and a right convex arm of the U-shaped location block, each U-shaped location block is provided with a chute along the bottom in the longitudinal direction, one end of each chute is communicated with the outside, a T-shaped location block with a T-shaped cross section is arranged in each U-shaped location block in a clearance fit manner and can move along the chute, and after the T-shaped location block penetrates through the chute, the bottom end of the T-shaped location block is welded and fixed to the outer surface of the other straight pipe in the every two adjacent straight pipes. The coiler has the advantage of high overall stability.

The invention relates to a locking catch block, which comprises a keel and a cushion block. The middle of the upper part of the keel is provided with a convex rib with a barb part and convex ribs distributed on two sides of the convex rib with the barb part, at least one inserting groove is formed on the keel, the cushion block consists of a main body part which has equal height with a keel cube and an inserting tenon matched with the inserting groove on the keel, and the inserting tenon on the cushion block is inserted in the inserting groove on the keel. In a fixer used with the locking catch block, one side of a block body is provided with a left groove, a right groove and a middle groove which are matched and sleeved with the left convex rib, the right convex rib and the middle convex rib of the keel respectively; and the left groove and the right groove are provided with flanges. The locking catch block can conveniently assemble a plurality of wood floor blocks together, the assembly is convenient and simple, and the wood floor is not easy to deform after assembling.

The invention relates to a gumming machine for ecological board production and belongs to the technical field of ecological board processing. The gumming machine is structurally characterized in thata left stacking table, a right stacking table and a glue pond are arranged on a base, one end of an L-shaped bracket is connected to the base, and a linear supporting block is connected to the other end of the L-shaped bracket; a linear guide rail is mounted on the linear supporting block, a slide block is mounted on the linear guide rail, a screw hole is formed in the slide block, a lead screw isspirally connected to the screw, a left convex plate and a right convex plate are separately formed at the left and right ends of the linear supporting block in a protruding manner, the left and right ends of the lead screw are separately inserted onto the left convex plate and the right convex plate, and a servo motor is mounted on the left convex plate and the power output shaft of the servo motor is connected to the lead screw; an electric push rod is mounted on the slide block, and a vacuum sucking disc is mounted at the telescopic end of the electric push rod and communicates to the vacuum pump; and the vacuum pump, the servo motor and the electric push rod are electrically connected to a power supply. By adopting the structure, gumming operations can be fulfilled in positions of thesurface of a panel, and the gumming effect is better.

The invention discloses a clothes hanger with a movable long handle. A vertical pipe is arranged on a triangular clothes hanger body and penetrates the bottom and the top of the clothes hanger body, the upper portion of the vertical pipe extends out of the top of the clothes hanger, and the bottom of the vertical pipe is flush with the bottom of the clothes hanger body. A hook with two opposite round holes is arranged on the head of the long handle which is arranged in an inner cavity of the vertical pipe, threaded pipes with screws are arranged in the round holes, and the outer end of each threaded pipe protrudes the outer side wall of the hook. The inner end of each threaded pipe is flush with the inner side wall of the hook. A small ball is arranged in an inner cavity of each threaded pipe and connected with a first spring arranged in the inner cavity of the corresponding threaded pipe, and the other end of each spring is connected with the head of the corresponding screw. The wall of the head of the vertical pipe is provided with a round hole with a short transverse pipe, a transverse rod is arranged in an inner cavity of the transverse pipe, the inner end of the transverse rod contacts with the long handle, the outer end of the transverse rod is connected with a vertical rod, and the bottom of the vertical rod is connected with a right convex part. The right convex part is connected with the right side of a moving ring sleeving the vertical pipe, the left side of the moving ring is connected with a left convex part which is connected with a handhold, the bottom of the handhold is connected with the outer wall of the vertical pipe, and a second spring is arranged between the vertical rod and the vertical pipe.