79results about How to "Less chance of bending" patented technology

The invention discloses a reinforced compound sheathing canal, a preparation method and application thereof. The reinforced compound sheathing canal sequentially comprises an inner layer, a reinforced layer and an outer layer from interior to exterior, wherein the reinforced layer comprises axial reinforcing elements and a spiral reinforcing element, the spiral reinforcing element is a single spiral element or is formed by combining two or more spiral elements, the axial reinforcing elements are disposed on the inner side or outer side of the spiral element, or are inserted between the spiral elements, and various axial reinforcing elements are uniformly arranged in the circumference direction of the sheathing canal. The reinforced compound sheathing canal provided by the invention has the advantages of thin wall, high axial strength, high radial strength, high torque transitivity and the like, can be applied to a transport system for transporting medical device implants needed in a minimally invasive treatment and can reduce the outer diameter of the transport system, so that the medical device implants are easy to arrive at lesion positions, damage to the blood vessel of a patient is reduced, and sufficient technical support is provided for reliable, successful and safe transport and implantation of the medical device implants by the transport system.

The invention relates to a polyethylene heat shrinkable film gravure printing process which comprises the following steps of: (1) unwinding a polyethylene heat shrinkable film; (2) carrying out unwinding drawing; (3) carrying out inking by a drop roller; (4) scraping ink by a scraper; (5) carrying out gravure printing; (6) drying ink; (7) cooling a printed object; (8) carrying out multiple color class overprinting, wherein the steps (3), (4), (5), (6) and (7) are sequentially repeated; (9) carrying out winding drawing; (10) winding; (11) checking the quality; (12) stripping; (13) sealing and cutting; and (14) carrying out finished product packaging to obtain a finished product, wherein when the step (6) is implemented, the ink printed on the surface of the polyethylene heat shrinkable film is dried by modes of feeding hot blast by an air blower and circulating the hot blast by a drying box and related equipment comprises an air energy heating device, the air blower, an external heating box, a suction fan and the drying box with an effect of an air chipper. The polyethylene heat shrinkable film gravure printing process is used for carrying out gravure printing on the polyethylene heat shrinkable film.

The invention provides an OLED panel packaging structure and an OLED display; the packaging structure comprises the following elements: a first protection glass arranged above an OLED panel; a second protection glass arranged below the OLED panel; a plurality of spacers scattered between the first protection glass and a first protection layer, and between the second protection glass and a second protection layer, wherein an air gap is arranged between adjacent spacers; a first bonding layer respectively between the first protection layer and the first protection glass, and between the second protection layer and the second protection glass, wherein the height of the first bonding layer is equal to that of the spacers. Compared with the prior art, the structure uses the spacers between the protection glasses and corresponding protection layers of the OLED panel to divide stress distribution of the two, so upper and lower cover plate glasses are not fully attached to the OLED panel, and the structure can be protected by the cover plate glasses with a small bending curvature.

The invention discloses a fiber pressure sensing device based on a C-shaped spring tube. A multi-layer microbend element containing a signal fiber is installed on the C-shaped spring tube. When the pressure to be measured is applied to the C-shaped spring tube, the C-shaped spring tube has the tendency of rounding and extending, and the extending displacement of the C-shaped spring tube causes the compression of the multi-layer microbend element so that the bending curvature of the signal fiber contained in the multi-layer microbend element is changed, thus the power of optical signals transmitted in the signal fiber is obviously changed, and the purpose of measuring the magnitude of the pressure is achieved by utilizing a testing instrument for detection. Because the multi-layer microbend element is adopted, the effective length of the signal fiber is extended, and the bending curvature of the signal fiber is reduced, thereby improving the accuracy of the device and greatly prolonging the service life of the signal fiber simultaneously, so that the device of the invention has wide application prospects.

The invention discloses a section steel straightening device, which comprises a straightening roll system, wherein the straightening roll system is arranged on a body; an output end of the straightening roll system is also provided with a rolling and straightening roll system; the rolling and straightening roll system comprises at least one pair of upper and lower rolling and straightening rolls and at least one pair of left and right rolling and straightening rolls; the upper and lower rolling and straightening rolls are symmetrically arranged on the upper and lower sides of a pass steel wire and a roll gap I for passing through section steel is formed between the two rolls; and the left and right rolling and straightening rolls are symmetrically arranged on the left and right sides of the pass steel wire and a roll gap II for passing through the section steel is formed between the two rolls. According to the section steel straightening device and a section steel straightening method, lateral bending of straightened section steel can be effectively improved, and the length of a straightening blind zone of a main bend of the section steel is reduced, so that the section size of the section steel is better, the flatness is higher, the residual stress is smaller, and particularly height difference existing in rail level of the straightening blind zone and a straightening zone can be effectively reduced and the yield of a steel rail is increased when the steel rail is straightened.

The invention discloses a universal pressure sensing device based on an optical fiber microbending loss, which comprises a cylindrical cavity, wherein one end of the cylindrical cavity is closed by a substrate, and the other end of the cylindrical cavity is fixedly provided with a corrugated piece; and a multi-layer microbending element containing a signal optical fiber is fixedly arranged between the substrate and the corrugated piece. When the tested pressure acts on the corrugated piece, the corrugated piece deforms and transfers the force to the multi-layer microbending element to allow the multi-layer microbending element to be compressed, so that the bending curvature of the signal optical fiber contained in the multi-layer slightly bent element changes, and thus the power of optical signals transmitted in the signal optical fiber is obviously changed, and the pressure is tested by the detection of a testing unit. The multi-layer microbending loss element is adopted, so that the effective length of the signal optical fiber is lengthened, the bending curvature of the signal optical fiber is reduced, and thus the precision of the device is improved, the service life of the signal optical fiber is substantially prolonged simultaneously, and the device has broad application prospects.

The invention relates to a compression molding device and process of multi curved surface inorganic glass. The compression molding device comprises a heating box, a molding box and a heating device, wherein the heating box and the molding box are arranged adjacently and are isolated by an inner door; the molding box is internally provided with a molding mold and a mold carrier; the mold carrier can move forwards and backwards between the molding box and the heating box; the molding mold comprises a female mold arranged on the mold carrier, a male mold movably arranged on the molding box, and a male mold driving device which is used for driving the male mode to stamp relative to the female mold; the compression molding device further comprises a control box; the control box is internally provided with a molding control module which is used for controlling the molding mold to do molding action, a mold moving control mold which is used for controlling the movement and the positioning of the mold carrier, and a temperature control module which is used for controlling the internal temperature of the molding box and the heating box. The compression molding device is applicable for multi curved surface molding of inorganic glass; the curvature precision of the multi curved surface inorganic glass after being molded can be improved; and moreover a proper bending temperature of the inorganic glass and the optical property and the quality of the surface of the glass after being bent and transformed can be ensured.

The invention discloses a high-pressure main throttle valve apparatus of a steam turbine. The high-pressure main throttle valve apparatus comprises a main throttle valve (20) and a spring mechanism (10), wherein the spring mechanism (10) comprises a housing (11), a spring seat (13), a spring (14) and a guide rod (15), wherein the housing (11) is fixed on a main stop valve (11), an end cover (12) is arranged on one end of the spring, the spring seat (13) is movably mounted in the housing along the axial direction, two ends of the spring (14) are respectively mounted on the end cover and the spring seat and respectively apply an elastic force onto the end cover and the spring seat, the guide rod (15) is connected with a valve rod (21) of the main stop valve in the housing, a guide cylinder (16) is fixed in the housing, the spring is sleeved on the guide cylinder (16), the guide rod can move in a hollow cavity (16a) of the guide cylinder, and the spring seat is supported on the guide cylinder (16) when the main stop valve is opened. According to the high-pressure main throttle valve apparatus of the steam turbine, the gravities of the spring seat and the spring are borne by the guide cylinder, the gravity borne by the valve rod is reduced, and the problem that closing time of the main stop valve is too long is avoided.

The invention discloses a rammer compactor with high stability for building construction. The rammer compactor comprises a base frame, wherein slide ways are arranged at the lower end of a motor cavity, sliding blocks are arranged in the slide ways, and drive cavities are formed at the position, located on the two sides of the slide ways, of the interior of a machine body. Vertical sliding groovesare formed between the drive cavities and the slide ways, and lifting rods extending to the drive cavities through the vertical sliding grooves symmetrically arranged on the left and right sides of asliding block. Sliding rods are arranged on the lower portions of the drive cavities, moving seats are slidably connected with the sliding rods, and connecting seats are arranged on the upper sides of the moving seats and the left ends of the front sides of the drive rods. Two connecting seats are connected with each other through a drive rod, and transverse sliding grooves are formed in the lower ends of the drive cavities. The lower ends of the moving seats abut against the drive cavities, and supporting plates extending out of the drive cavities through the transverse sliding grooves are connected to the lower ends of the moving seats. Telescopic rods are arranged on the inner sides of the supporting plates, limiting plates are arranged at the inner ends of the telescopic rods, and buffer springs are arranged on the outer sides of the telescopic rods. The rammer compactor with high stability for the building construction has simple structure, convenient use, good tamping effect, long service life and high practicability.

The invention provides a self-resetting fabricated shear wall structure connecting device. The connecting device comprises a prefabricated shear wall and a foundation shear wall, and the prefabricatedshear wall is internally provided with a steel reinforcement cage and a plurality of longitudinal bars. The connecting device is characterized in that the prefabricated shear wall comprises an end confined region, a middle confined region and a distributing reinforcement region, wherein the middle confined region is located in the middle of a wall body of the prefabricated shear wall, the end confined region is located at both ends of the wall body of the prefabricated shear wall, and the distributing reinforcement region is located between the end confined region and the middle confined region; the purpose is to apply energy-dissipation earthquake-reduction to the fabricated structure, according to the connecting mode, the energy dissipation capacity of the shear wall structure is improved, the shear wall has self-resetting capacity under lateral loads, the seismic demand of the whole structure can be reduced, and the seismic performance of the main structure is improved; and at thesame time, the connecting device has the characteristic of easy industrial production and is more efficient and quicker, and the problems of inconvenience and pollution of energy consumption caused byon-site wet working are avoided.

The invention relates to an air-injection vortex-spinning groove-shaped self-twist hollow spindle which comprises a fiber inlet (1), a yarn forming channel (2), a circumferential step groove (4), conical top plane arc grooves (5) and conical top wall face spiral grooves (3), wherein square groove bodies on a conical top plane of the hollow spindle are arc; included angles between the conical top wall face grooves and a horizontal direction are 20-40 degrees; the circumferential groove is step-shaped; and the quantity of steps is 1-3. According to the spindle, positive pressure bonded between a fiber at a free end and a wall face of the hollow spindle in a spinning process can be increased, and a friction force between the fiber and the wall face is increased, so that the twisting possibility of the fiber is improved, a cohesive force between the fibers in a yarn is increased, and the strength of the yarn is improved finally; in addition, the loss of the fibers can be reduced; and a use ratio of the fibers can be increased.

The invention belongs to the technical field of hot continuously rolled plate and strip production and particularly relates to a technique for solving the problem of cambers of hot rolled plates. In order to solve the technical problem, a hot rolled plate shape improving method is provided and includes that a coiled steel billet is put into a slow cooling pit for slow cooling within 60min. By adoption of the slow cooling pit for production of hot rolled steel coils, cambers are smaller than 2.0mm/10m in use. By adoption of the method, probability of camber occurrence in a utilization process of steel plates is greatly reduced.

The invention discloses a full-automatic feeding machine for feeding band saw plates, comprising a stand, a reciprocating feed mechanism installed on the stand and a feeding support connected with one end of the reciprocating feed mechanism, wherein a supporting limit mechanism ensuring the feeding support to do linear motion relative to the stand in the feed direction A of the reciprocating feed mechanism is arranged between the feeding support and the stand. The machine realizes full-automatic feeding, dispenses with manual attendance and management, reduces the labor intensity of workers, improves the production efficiency, reduces the bend probability during composite feeding, improves the milling teeth quality, is safe and reliable, occupies less space and is low in equipment set cost and maintenance cost. Besides, the selection space of the specifications of the composites is larger during gear milling, and the number of the composite plates to be processed each time can be flexibly selected and is more than the number of the plates to be processed each time in the original feeding mechanisms.

The invention discloses dentistry appliance used for orthodontic treatment of first molar and second molar, specifically a wx series bracket and buccal tube. The wx series bracket comprises bracket bottom plate; a slot, bracket wings and a position slot are arranged on the bracket bottom plate in sequence; according to different tooth position and molar morphology, the bracket has three offset angles with different angles, namely theta1, theta2 and theta3, wherein, theta1 is 4 to 10 degree, theta2 is -5 to -3 degree and theta3 is 0 degree; wx series buccal tubes comprises a buccal tube bottom plate, a tube body of the buccal tube and a slot of the buccal tube are arranged on the buccal tube bottom plate, a towing hook is arranged on the tube body of the buccal tube. According to different tooth position and molar morphology, the buccal tube has three offset angles with different angles, namely theta'1, theta'2 and theta'3, wherein, theta'1 is 4 to 10 degree, theta'2 is -5 to -3 degree and theta'3 is 0 degree. The wx series bracket and buccal tube is suitable for more different types of orthodontic patient, molar rotation is effectively reduced or avoided and a better occluding relation is built.

The invention discloses a corrugated pipe-based optical fiber stress sensing device. An A-side deformation tooth and a B-side deformation tooth which correspond to each other in a staggering manner are respectively arranged on two opposite surfaces at the sunk place of a corrugated pipe wall, and a signal optical fiber is clamped between two deformation teeth. When a corrugated pipe expands and deforms under stress, a distance between the A-side deformation tooth and the B-side deformation tooth on the corrugated pipe wall changes, so that a bending curvature of the signal optical fiber clamped between the two deformation teeth changes, and bending loss of the signal optical fiber changes, the change degree of the bending loss of the signal optical fiber can be obtained through a test unit, and the stress size of the corrugated pipe can be calculated. The corrugated pipe and an optical fiber micro-bending structure are organically combined to form an intelligent device with many advantages of high precision, soundness and durability, strong adaptability and convenience and flexibility for use. The corrugated pipe-based optical fiber stress sensing device has broad application prospect.

The invention discloses a pruning machine, wherein a steel wire shaft (7), an upright rod (12), a switch top block (13), a main button (2), a lifting plate (8) and an inching switch (6) are arranged at the left of a motor component (5), a draw plate (10) and a sub button (4) are arranged at the right of the motor component (5), two ends of the steel wire shaft (7) are respectively connected with the right end of the main button (2) and the left end of the lifting plate (8), a rigid metal rod (9) is connected between the right end of the lifting plate (8) and the upper end of the draw plate (10), the lower ends of the draw plate (10) and the sub button (3) are hinged with a shell (11), the lifting plate (8) is sliding sheathed on the upright rod (12) sheathed by the switch top block (13), and the inching switch (6) is above the switch top block (13). The invention has the advantages that the invention can turn on and off motor with small force and can prevent thermal deformation of driving mediums caused by the heat radiation of motor.

The invention discloses an optical fiber sensing device with waveform grooves and a cylinder body, wherein the waveform grooves (4) are distributed on the cylinder body (10); wave crests and wave troughs which are staggered and corresponded to each other are arranged on two opposite planes of the waveform grooves (4); and a first signal optical fiber (6) is arranged between wave crests on two opposite planes of the waveform grooves (4). When the cylinder body (10) is deformed under stress, the distance between wave crests at two opposite sides inside the waveform grooves (4) on the cylinder body (10) is changed, then a bending curvature of the first optical fiber (6) arranged between the wave crests is changed, so that the bending loss of the first optical fiber (6) is changed; the stress on the cylinder body (10) can be calculated through a testing unit (5) and a processing unit (7); and a novel sensing device is formed through the organic combination of the cylinder body (10) and the micro-bending waveform grooves (4).