34results about How to "Avoid twisting and bending" patented technology

The invention relates to a drawer capable of being locked at any position. The drawer comprises a drawer body, a drawer wallboard and a locking device, wherein the locking device comprises a lock tongue mechanism, a button mechanism, a wire cable and a rack which is fixed on the drawer wallboard and is arranged along the entire slide distance, the lock tongue mechanism comprises a lock tongue, a spring and a guide block which is fixed on the bottom edge of the drawer body, an open groove facing the rack is formed in the guide block, both the lock tongue and the spring are arranged in the open groove, the lock tongue is adjacent to one side of the rack, the button mechanism comprises a supporting seat which is fixed on a drawer body front baffle plate, a guide sleeve which is arranged on the supporting seat, an oscillating arm which is rotatably fixed on the supporting seat and a button which is arranged inside the guide sleeve, the head of the button is matched with the guide sleeve, the tail part of the button penetrates through the supporting seat to point to the oscillating arm and always contact the oscillating arm, and two ends of the wire cable are respectively fixed on the oscillating arm and the lock tongue. The drawer can be locked and unlocked at any position and is convenient to operate, reliable to lock and low in cost.

The invention discloses a cover plate glass platinum channel thermocouple device and a manufacturing method thereof. A thermocouple is extended and straightened and then is subjected to double-layer cladding, so the fact that the surface of the thermocouple is not corroded by harmful foreign matters is guaranteed, bending and distortion of the thermocouple in the cladding process can be effectively avoided, and the strength reduction of the thermocouple caused by bending and distortion of the thermocouple which is collided by external force is avoided; a mould with the structure the same as that of the cladded thermocouple is put into a thermocouple mounting hole, the lower half part in the thermocouple mounting hole is poured, and the mould is taken out after the lower half part pouring layer is coagulated; the cladded thermocouple is put on the lower half pouring layer in the thermocouple mounting hole, so the fact that the thermocouple is not damaged by extrusion is guaranteed, and the bending and distortion of the thermocouple in the pouring process is avoided; the cover plate glass platinum channel thermocouple device is fixed, stable and insusceptible to deformation through once pouring and fixing, and the extrusion force, generated by thermal expansion, of the platinum channel is counteracted by the cladding layer cladding the thermocouple.

The invention provides a mold plunger chip stretching and drawing type punching mechanism, and belongs to the technical field of metal forming. The mold plunger chip stretching and drawing type punching mechanism comprises an upper roller, an upper punching roller wheel and a stretching and drawing plunger chip component. The upper punching roller wheel and the upper roller are rigidly connected. A rotating connector is arranged at one end of a rigid air pipe. The stretching and drawing plunger chip component is arranged in the upper punching roller wheel in an equal-distance and equal-angle mode. A first adjusting block of the stretching and drawing plunger chip component is arranged in a first sliding groove of the upper punching roller wheel in a radially slidable mode, and a second adjusting block is arranged in a second sliding groove of the upper punching roller wheel in an axially slidable mode. A first inclined surface of the first adjusting block is attached to a second inclined surface of the second adjusting block, a plunger chip is arranged in a third sliding groove of the upper punching roller wheel in a radially slidable mode, and a fourth inclined surface of the plunger chip is attached to a third inclined surface of the second adjusting block. An air cylinder is fixedly arranged in the upper punching roller wheel and connected with the rotating connector through a flexible air pipe, and a piston rod of the air cylinder is connected with the first adjusting block. According to the mold plunger chip stretching and drawing type punching mechanism, the purpose that the plunger chip stretches out and draws back can be achieved, adjustment of the punching position of a corrugated sheet can be achieved, and the structure is reasonable.

The invention relates to the technical field of unmanned aerial vehicles and discloses an unmanned aerial vehicle testing platform. The unmanned aerial vehicle testing platform comprises a flange plate, a rotating bearing, a base and a conductive slip ring. A mounting hole is formed in the flange plate and used for mounting an unmanned aerial vehicle; the flange plate is rotationally mounted on the base through the rotating bearing; the conductive slip ring comprises a rotor end and a stator end; and the rotor end is electrically connected with the unmanned aerial vehicle; and the stator end is connected with the base. Through the rotating of the rotating bearing, degree of freedom needed to test yawing movement is provided for the unmanned aerial vehicle; the unmanned aerial vehicle is inwire connection with a power supply and signal receiving device through the conductive slip ring so that the unmanned aerial vehicle gets rid of limitation of limited battery capacity and overcomes defects that the wireless transmission speed is low and the unmanned aerial vehicle is easy to be interfered; and therefore, the unmanned aerial vehicle can efficiently and accurately transmit and receive information; and the rotor end and the stator end of the conductive slip ring can relatively rotate to avoid bending distortion of a transmission lead. According to the unmanned aerial vehicle testing platform, an efficient and reliable testing platform is provided for the yawing movement of the unmanned aerial vehicle; and moreover, the structure is simple, the operation is convenient, and the practicability is very high.

The invention relates to medical nursing tools, in particular to a novel stretcher type medical translocation bed sheet. The bed sheet enables nursing staff and patients' relatives to move operation patients from operation beds to hospital beds. The bed sheet mainly comprises a bed sheet body 1, straight steel tubes 2, transverse steel tubes 3 and positioning pins 4. During use, the straight steel tubes 2 are inserted between two layers of folding edges 12 of the sheet body 1, the transverse steel tubes 3 are disposed at two ends of the straight steel tubes 2, the straight steel tubes 2 are connected with the transverse steel tubes 3 through the positioning pins 4 to form a frame, and only two persons are needed to move a patient from an operation bed to a hospital bed. The bed sheet has the advantages that operators are reduced, the paint can be kept flat during moving, the bed sheet is prevented from wrapping the patient, patient bending can be avoided, and the bed sheet simple to operate, practical and convenient.

The invention provides a manufacturing technique for a honeycomb chassis thin wall. Sixty-four hexogen thin-walled honeycomb structures can be die-cast at a time. By adopting the technique for producing the honeycomb chassis cast structures, the cost can be reduced, the production period of honeycomb chasses is shortened, the size and assembling precision of the whole honeycomb chasses can be improved, connection is reliable, and the safety performance is better guaranteed. Through transition circular corners, the strength of the honeycomb chassis can be improved, and the production technique requirements during casting can be met. The whole honeycomb chassis cast structures are subjected to demolding by jacking the circular corners through ejector rods. The mass of workpieces produced through casting is lower than that of workpieces subjected to profile extrusion, and in order to solve the problem, two-sided die pulling is adopted. Due to the fact that the casting technique is adopted, the thin wall thickness at the joints of the outer walls of honeycombs can be adjusted according to the actual thickness, the thin wall thickness of the whole honeycomb chassis are the same after combination is completed, errors of the thin-walled honeycomb structures in the combination process are reduced, and later recombination and maintenance of the thin-walled honeycomb structures are facilitated.

The invention discloses a multifunctional rice seeder with adjustable spacing, relates to the field of rice seeding, and aims to solve the problem that an existing device cannot conduct seeding in themoving process. The multifunctional rice seeder specifically comprises a shell, adjusting assemblies are fixedly connected to the inner walls of the two sides of the shell, and a material distributing assembly is fixedly connected to the inner wall of the bottom of the shell; and each of the adjusting assemblies comprises two clamping plates and two sleeves. By arranging the adjusting assemblies,a power box is started to drive a jacking column to rotate, when the jacking column rotates, an air cylinder on the inner wall of a first frame is started to drive a second frame to move, and an adjusting motor on the inner wall of the second frame is started, so that one connecting gear is engaged with a gear sleeve all the time, and stepless speed change can be achieved; and meanwhile, the other connecting gear obtains various rotating speed adjustments, different speeds can be output, the material distributing assembly can be controlled through speed adjustment, and then the sowing spacingcan be adjusted in the moving process of the device.

The invention discloses a bending-resistance and deformation-resistance line rail machine with high load, and relates to the technical field of line rail machines. The machine comprises a support table and a console; a support base plate is mounted at the bottom of the support table; the top end of the support base plate and the bottom end of the support table are in pin positioning assembly; theconsole is arranged right above the support base plate; the support base plate is movably connected with the console; an adjusting frame is assembled at the top of the support table through casting; and a second hydraulic cylinder is mounted in the adjusting frame. The bending-resistance and deformation-resistance line rail machine with high load has the following beneficial effects: through arrangement of a steel block, when the steel block with a steel material is embedded in an insert opening, the overall strength and hardness of the console can be effectively improved according to own strength and hardness of the steel material, so that the console is convenient to bear long-time and high-load machining process, and the service life of the console is prolonged.

The invention discloses a crankshaft for a compressor and belongs to the technical field of crankshafts. The crankshaft comprises a short shaft, an eccentric part and a long shaft; the top of the eccentric part is fixedly connected with the short shaft; the bottom of the eccentric part is fixedly connected with the long shaft; the long shaft is formed by hinging a twisting strip A and a twisting strip B; the structural strength of the twisted long shaft is relatively high, large torsional stress can be borne, and the long shaft is not easy to bend, twist, deform or break when a surface generates torsional stress during long-time high-speed rotation; the long shaft is prevented from being bent, twisted, deformed or twisted off due to the long-time high-speed rotation; triangular sawteeth are fixedly connected to outer side walls of the short shaft and the eccentric part; an inverted-triangle-shaped oil groove B are formed between the triangular sawteeth, meanwhile, the integrated oil groove is formed in a surface of the long shaft, the triangular structure strength is high, crankshaft breakage caused by the fact that the oil groove are formed in the surface of the crankshaft to affect the crankshaft structure strength is prevented, the internal part of the crankshaft is connected to a steel wire, and the structure strength is further improved.

The invention provides a dynamic pipeline arrangement method. A pipeline is subjected to rotating motion around a rotating axis and telescopic motion in the plane perpendicular to the rotating axis, a telescopic structure of telescopic motion is arranged on a rotating structure of rotating motion, and at least one point of the pipeline is restrained by pipe clamps. Each pipe clamp is fixedly arranged or movably arranged, and the pipe clamp is arranged independent of the rotating structure and the telescopic structure. The pipe clamps comprise the first pipe clamp and the second pipe clamp, and through the arrangement of the first pipe clamp and the second pipe clamp, the phenomenon that the pipeline is wound, twisted, scraped and the like in the rotating, stretching and retracting processes can be avoided. Moreover, the pipeline allowance generated by the telescopic motion can be controlled within the length range from the telescopic structure to the first pipe clamp. The pipeline can rotate along with the main body structure when the rotating structure rotates around the rotating axis, so that the pipeline is prevented from being twisted and bent, the reasonable bending radius of the pipeline is ensured, and a working medium in the pipeline can flow smoothly.

The invention discloses a device for detecting and sampling the urea-formaldehyde resin in a porcelain-imitating tableware. The device comprises a driving part, a grinding part, a gas injection part and a rotating pipe with a through hole, the grinding part comprises an upper plate and an outer conical grinding cover with a small end facing downwards, and the small end of the outer conical grinding cover is sealed. The upper end of the outer conical grinding cover is fixedly and hermetically connected with the side surface of the upper plate, an air outlet hole communicated with an inner cavity of the outer conical grinding cover is formed on the upper plate, and a plurality of grooves are formed at the outer side of the outer conical grinding cover. The upper plate is connected with the lower end of the rotating pipe, and the through hole of the rotating pipe is communicated with the inner cavity of the outer conical grinding cover. The gas injection part comprises a rotating connector, a guide pipe and a gas pump, and the rotating connector is installed at the upper end of the rotating pipe and is connected with the gas pump through the guide pipe. According to the device for detecting and sampling the urea-formaldehyde resin in the porcelain-imitating tableware, the temperature of the grinding part and the temperature at the sampling position of the porcelain-imitating tableware are reduced through the flowing air, the urea-formaldehyde resin is prevented from being hydrolyzed when meeting heat, and the detection precision of the urea-formaldehyde resin is improved.

The invention provides an automatic discharging device of a plate pressing machine. The automatic discharging device comprises a hydraulic stroke rod, a guide device matched with the hydraulic stroke rod, an overturning plate hinged to the outer end of the hydraulic stroke rod, a first hydraulic push rod driving the overturning plate to be overturned to the vertical state from the horizontal state, an unloading stop device installed on the overturning plate, a second hydraulic push rod driving the unloading stop device to move and a hydraulic station connected to the hydraulic stroke rod, the first hydraulic push rod and the second hydraulic push rod. Through hydraulic control, accurate discharging, overturning and unloading movement can be realized, the automation degree is high, the stability is high and materials do not get broken easily. The invention further provides the plate pressing machine. A plate pressing mechanism is installed on a supporting frame, the automatic discharging device of the plate pressing machine is installed on a base, the plate pressing mechanism and the automatic discharging device are installed separately, the automatic discharging device is prevented from being influenced by shake of the plate pressing mechanism, and therefore the discharging stability is further improved.

The invention relates to a pressure-stabilizing air-floating type liquid crystal display screen with vibration reduction and impact resistance functions. The liquid crystal display screen is characterized in that a front panel assembly comprises a front shell assembly and an internal screen core assembly; the front shell assembly comprises a screen front panel, anti-collision cotton, shielding glass and a glass pressing frame; the shielding glass is fixed on the screen front panel through the glass pressing frame; the anti-collision cotton is adhered to the glass pressing frame; the internal screen core assembly comprises a pressure stabilizing air-floating type vibration reduction and impact resisting part, a screen installation transition plate, a screen reinforcing piece, a liquid crystal screen and an AD conversion plate; the liquid crystal screen and the AD conversion plate are fixed on the screen reinforcing piece; one end of the pressure-stabilizing air-floating vibration reduction and impact resisting part is connected with the screen reinforcing piece, and the other end of the pressure-stabilizing air-floating vibration reduction and impact resisting part is mounted on the screen installation transition plate; the pressure-stabilizing air-floating vibration reduction and impact resisting part comprises air-floating assemblies, constant-pressure source hoses and a constant-pressure source, and the air-floating assemblies are symmetrically installed on the two sides of the constant-pressure source through the constant-pressure source hoses. The anti-vibration level of the large-size liquid crystal display is improved, the safety and stability of equipment are guaranteed, and the requirement for application in a high-vibration environment is met.

The invention discloses a heat-insulating gasket, which comprises a threaded hole, absorbent cotton, a fitting port, a cock, a moisture-proof air barrier, a bracket, an end cover, a telescopic spring, a thermal insulation layer, and a bolt. Penetrating through the center of the bracket, the telescopic spring is composed of a conductive angle, a spring, a telescopic rod, a pillar, a steel cap, and a damping pad. The invention is a thermal insulation gasket, and the spring and the damping pad are fixed inside the bracket through the conductive angle. , when the operator installs the heat insulation gasket in the connection gap of the mechanical equipment, the damping pad will drive the telescopic rod to press down the spring, and the support will be embedded in the steel cap to prevent the telescopic spring from twisting and bending; it will be replaced next time When the spring is not under pressure, it will automatically bounce outwards to keep the telescopic spring horizontal and vertical, so that it can be used repeatedly and solve the problem of frequent replacement of heat insulation gaskets.