42results about How to "Won't twist" patented technology

The invention discloses a friction roller suitable for a conical bobbin. The friction roller suitable for the conical bobbin comprises a friction roller body (1), a rubber sheet (2) and a jackscrew (3). The friction roller suitable for the conical bobbin is characterized in that the friction roller body is a cylinder with the side face protruded and is provided with a rubber sheet shallow groove (6) which surrounds the friction roller body (1) for a circle and is arranged in the side deviating the centerline of the side face of the friction roller, the rubber sheet (2) is in a ring shape with a certain width, and the rubber (2) is arranged on the side face of the friction roller body (1) along the periphery in a sleeved mode. According to the friction roller suitable for the conical bobbin, an irregular cylindrical friction roller is changed to the friction roller with the protruded side face, the conical bobbin can not be distorted or twisted in the process of winding, a maximum outside diameter part is moved to the rubber sheet (2), and crimp is guaranteed and slipping can not happen when the rubber sheet and the conical bobbin (7) is in complete contact. The friction roller suitable for the conical bobbin has the advantages of being simple in structure, stable in working and the like.

The invention provides a hospital bed. The hospital bed comprises a bed body (100), a supporting frame (200), a guide platform (300) and a locking part (500), and the bed body comprises at least threebed plates (101), a bed sheet (102), a bed frame (103) and a limiting plate (104); the supporting frame is arranged on the bed plates (101); the guide platform comprises an annular guide rail (301),a ball (302) and a supporting block (303). Compared with the prior art, the hospital bed has the advantages that through the structure, when a patient lays on the bed and his/her four limbs are hung,he can turn over arbitrarily, and the hung joint cannot be twisted.

The invention provides a medical sickbed used in the orthopedics department. The medical sickbed comprises a bed body (100), a supporting frame (200) and a guide table (300), wherein the bed body (100) comprises at least three bed boards (101), a bed sheet (102), a bed frame (103) and limiting plates (104); the supporting frame (200) is arranged on the bed board (101); the guide table (300) comprises an annular guide rail (301), rolling balls (302) and supporting blocks (303). Compared with the prior art, the medical sickbed used in the orthopedics department has the advantages that by means of the structure, it can be achieved that a patient can turn over at random when the patient lies in bed or the limbs of the patient is suspended, and the suspended joints cannot be wriggled.

The invention provides a multifunctional scaffold for construction engineering. The multifunctional scaffold comprises a turning fastener and steel pipes. One end of the turning fastener is composed of an upper fastener block and a lower fastener block which are rotationally connected. A screw axially connected to the left end of the lower fastener block penetrates through a through hole formed inthe left end of the upper fastener block, and a nut is connected to the screw in a threaded mode; each limiting device is jointly composed of a cylindrical block, a threaded column and a rubber cushion layer; each threaded column is connected to the center of the tail end of the corresponding cylindrical block in a welded mode, and the threaded columns are connected in threaded grooves in a threaded mode; and each rubber cushion layer adheres to the head end of the corresponding cylindrical block. By arranging four nylon wires, the nut is not separated from the upper fastener piece, so that losing of the nut is avoided; and by arranging bearings and circular ring blocks, the situation that when the nut is twisted, the four nylon wires drill a hole along with the nut is facilitated, and thus twisting of the nut is not hindered.

The invention relates to a shovel wheel of an overhaul trolley and an application thereof, the invention relates to an application of a shovel wheel, A low end of that pry bar insertion pipe (2) is fixedly connected to a tilt plate (4) arrange at one end of the shovel plate, the upper ends of the two upright plates (3) are fixedly connected to the middle part of the shovel plate to the lower sidesof one end, A low part of an inclined plate on one side of that perforation (12) on the outside of the two vertical plates is respectively provided with a positioning plate (9), the two positioning plates are respectively provided with screw holes A (11), the middle part of the hub (27) of the wheel is provided with a sleeve (25), the sleeve is arranged between the two vertical plates to form a shovel wheel, the frame rod of the overhaul trolley is pierced in the perforation of the two vertical plates and the middle hole of the sleeve, and the two fixing screws (8) fix the two positioning plates on the frame rod respectively; The shovel plate of the shovel wheel of the invention shovels up the equipment, and the small space equipment is rapidly replaced by a combination of an elongated and widened front rod, a connecting rod and a rear rod.

The invention relates to a composite sleeve compensator with a warning device and an intelligent management system thereof. The composite sleeve compensator with the warning device comprises core tubes, corrugated pipes and a flow guide pipe, wherein the flow guide pipe is arranged in an inner cavity formed in the part from the left core tube to the right core tube; an outer sleeve pipe is arranged on the peripheries of the left corrugated pipe and the right corrugated pipe; the left end of the outer sleeve pipe is connected with the left core tube; the right end of the outer sleeve pipe is connected with the right core tube through a sealing device; the sealing device comprises a packing ring, a gland packing and a packing gland flange; the management system comprises a plurality of compensators, a signal transmission device and a central control unit; and all the compensators are in circuit connection with the signal transmission device and the central control unit. According to thecomposite sleeve compensator with the warning device and the intelligent management system thereof, the compensator is improved in sealing performance and not liable to leakage, and can maintain reliable sealing for a long time; besides, the service life is long, the maintenance cost is low, the operation is safe and reliable, and meanwhile the real-time management and safety monitoring level of the pipeline is greatly improved.

The invention belongs to the field of wooden doors and in particular relates to a steel wooden door frame in which a steel plate is additionally arranged so that the door frame has higher strength. The steel wooden door frame comprises a door plate block step and a door frame base, which are vertical to each other, wherein a steel plate frame is arranged in the door frame base; and the door frame base is connected with the door plate block step by the steel plate frame. The steel wooden door frame has the beneficial effects that the steel plate frame is directly arranged in the door frame, the steel improves the overall strength and fire retardance of the door frame, and as the steel plate has very low expansion and contraction rate and does not have water absorption, the weather resistance of the door frame 5 is improved and contraction and expansion, with solar term change, of the door frame become slight, thus ensuring that the coated paint can not crack or warp; and the steel wooden door frame has a simple structure and is convenient to process and low in cost.

The invention discloses a workpiece clamping device and a machine tool. The workpiece clamping device comprises a box body, a workpiece shaft and a pneumatic band-type brake; the pneumatic band-type brake comprises a band-type brake cylinder body and a spring bellow, wherein the band-type brake cylinder body is annular and is connected to the workpiece shaft, an inner cavity is formed in the band-type brake cylinder body, the inner cavity is provided with an inner ring cavity wall for locking a workpiece, and the inner ring cavity wall has elastic deformation capacity; the spring bellow is formed in the inner cavity, the outer edge of the spring bellow is connected with the band-type brake cylinder body in a fastened mode, and the inner edge of the spring bellow abuts against the inner ring cavity wall; after the spring bellow is deflated, the spring bellow stretches in the radial direction and applies acting force to the inner ring cavity wall, and the inner ring cavity wall holds the workpiece; and after the spring bellow is inflated, the spring bellow expands in the axial direction, and the inner ring cavity wall rebounds and is separated from the workpiece. According to the scheme, the clamping and loosening effects are achieved by contracting and expanding the radial size. By the adoption of the clamping structure, large-torque and high-rigidity positioning clamping can be achieved; and meanwhile, due to the fact that the structure is compact and ingenious, compared with a traditional hydraulic piston type clamping mechanism, the device is smaller.

The invention relates to a prefabricated section swing shifting method for bridge cantilever assembly, which comprises the following steps that S1, a pier top cast-in-place section and a plurality of prefabricated sections are manufactured before construction; s2, a bridge floor support is installed on the pier top cast-in-place section, a pair of A hinge bearing lifters is installed at the front end of the bridge floor support, the first prefabricated section is lifted to the height of the pier top cast-in-place section through the A hinge bearing lifters, and the first prefabricated section and the pier top cast-in-place section are in butt joint and anchored; and S3, the remaining multiple prefabricated segments are lifted and transferred through the prefabricated segment auxiliary transfer device in sequence so as to be in butt joint with the A hinge bearing lifter, and the multiple prefabricated segments are spliced to form the bridge. According to the prefabricated segment swinging and moving method for bridge cantilever assembly, the multiple prefabricated segments are moved and transported to the cantilever end from the bridge pier in the air to be in butt joint, and the prefabricated section swing shifting method can be used for moving and hoisting the prefabricated segments during cantilever assembly under the bridge without the transportation condition.

The invention discloses a damping type computer display device and an adjusting method. The damping type computer display device comprises a displayer. A connecting rod is fixedly arranged on the rearside of the displayer. A rotating block is fixedly arranged at the end of the connecting rod. Rotating rods are fixedly arranged on the two sides of the rotating block. A damping ring gasket fixedlyconnected with the rotating block is arranged on the outer portion of each rotating rod in a sleeving manner. Limiting blocks are arranged at the top and the bottom of each rotating rod. A damping sleeve is arranged on the outer portion of each limiting block in a sleeving manner. A clamp plate is arranged on the outer side of each rotating rod. A limiting groove is arranged on the inner side wallof each clamp plate. According to the damping type computer display device, the rotating block rotates and drives the rotating rods and the limiting blocks to be in sliding connection in the limitinggrooves; through the arranged damping sleeves, when the rotating block rotates, damping of the longitudinal annular face is generated between the damping ring gaskets on the two sides of the rotatingblock and the clamp plates, damping of the transverse annular face is generated by the outer walls of the limiting blocks and the inner walls of the limiting grooves, and therefore the damping effectis better; and when the displayer rotates, greater stability is achieved, and any angle can be adjusted.

The invention relates to an ultrasonic heat meter temperature sensor anti-wire-twisting device and belongs to the field of an ultrasonic heat meter. The device is provided with a sensor cavity. The device is characterized in that a sensor cover is mounted on the upper end of the sensor cavity; one side of the sensor cavity is provided with a wire outlet; the lower end of the sensor cavity is connected with a tubular sensor guide rod; the inner cavity of the sensor guide rod is communicated with the sensor cavity; the sensor guide rod is fixedly provided with a baffle piece; the sensor guide rod between the baffle piece and the sensor cavity is sleeved by a movable nut; the lower end of the sensor guide rod is inserted into a through hole in a base; the base is internally equipped with a sensor; the movable nut and the base are screwed together through a thread; the lower ends of wires are connected with the sensor; and the upper ends of the wires pass through the wire outlet through the sensor guide rod inner cavity and the sensor cavity.

The invention relates to an inflatable parachuting special ankle guard and a using method, wherein the inflatable parachuting special ankle guard comprises an ankle guard sleeve and an air column bag arranged in the ankle guard sleeve, the shape of the air column bag is matched with the ankle guard sleeve, and the ankle guard sleeve is provided with a heel fixing band and a binding band which play a role in fixing. The ankle protecting sleeve comprises two sheet bodies corresponding to the medial malleolus and the lateral malleolus respectively and a surrounding sheet connected with the two sheet bodies, wherein the surrounding sheet is located at the tops of the sheet bodies, a containing opening used for containing the air column bag is formed in the surrounding sheet, and a foldable hook-and-loop fastener is arranged at the containing opening. According to the invention, an ankle is fixed through the ankle protecting sleeve, wherein the ankle protecting sleeve is a special cloth sleeve and has the advantages of skid resistance, wear resistance, firmness and durability; after the ankle protecting sleeve is bound to the ankle, the twisting range of the ankle is limited, and the ankle is protected and fixed; after the air column bag located in the ankle guard sleeve is inflated, external force can be effectively buffered, the ankle joint is protected, and the ankle joint cannot be twisted and injured under the condition that the ankle joint is impacted by the external force.