42results about How to "Uniform traction" patented technology

The invention discloses a stepped wire coil pay-off rack. The pay-off rack comprises a stepped bracket, wherein a pay-off device for mounting a wire coil is arranged on each layer of step of the stepped bracket; each pay-off device is arranged on the stepped bracket in a manner of moving leftwards and rightwards. By adopting the pay-off rack, the abrasion of wires is avoided by and large, the smoothness in overlapping of the wires is greatly improved, the wires are stressed uniformly, and the conditions of small waistline and size deviation are obviously improved.

The invention provides a scroll saw driven by electromagnets. The scroll saw comprises a machine base, a machine frame, a saw blade and a work table, the work table is connected with the machine base, the machine frame is arranged on the machine base, the inner side of the machine frame is provided with a guide rail and is provided with an arch saw frame, the upper end opening of the inner side of the machine frame is connected with the upper electromagnet, the lower end opening of the inner side of the machine frame is connected with the lower electromagnet, each electromagnet is formed by a yoke, a solenoid and an armature core, the yokes are connected with the machine frame, the armature cores are connected with the outside of the saw frame, a spring is arranged between each armature core and the corresponding solenoid in a sleeved mode, one end of each spring abuts against the bottom of the corresponding yoke, the other end of each spring abuts against the outside of the saw frame, the position, corresponding to the upper electromagnet, on the inner side of the saw frame is connected with an upper hook through a spring plate, the position, corresponding to the lower electromagnet, of the lower portion of the saw frame is connected with a lower hook, the saw blade is hung on the upper hook and the lower hook, one end of the spring plate is fixedly connected with the saw frame, the other end of the spring plate is hung on the upper hook through a round hole, the middle of the upper hook is provided with a shoulder abutting against the upper end face of the round hole, the middle of the spring plate is provided with a regulating screw, and currents passing through the solenoids are controlled by an electrical appliance. The scroll saw has the advantages that movement is stable, efficiency is high, traction force is balanced and saw teeth can be protected.

The invention discloses a worm and gear traction system for a bridge rotating body, and a traction method. The traction system mainly comprises a control system, a power system, a speed reducing device, a worm gear, a worm, an upper swivel plate and a lower swivel plate. The traction method of the traction system comprises the steps of firstly, using the control system to start the power system so as to drive the worm to rotate, enabling the rotation of the worm to be linked with the rotation of the worm gear, driving the upper swivel plate to rotate by means of the rotation of the worm gear, and driving a bridge body to rotate until the rotating body takes place, wherein the rotating speeds of the worm gear and the worm are regulated and controlled by using the control system to adjust the rotating speed of a motor of the power system in a rotating process, so that the speed of the rotating body is regulated and controlled. The worm and gear traction system and the traction method have the advantages that the forward and backward direction traction for a rotating body structure can be realized, so that the demand of traction direction adjustment can be met when a rotation test is carried out and the rotating body is in place; worm drive is rigid drive, so that a traction hysteresis effect can be avoided, and continuous and uniform traction is realized; mechanical transmission traction is adopted, so that the traction system is good in stability.

The invention discloses a one-way self-powered net box. The one-way self-powered net box comprises a rectangular floating pipe which is arranged at the top of the net box; a cylindrical net box with an axis being in the horizontal direction is connected below the floating pipe; one end of the cylindrical net box is provided with an annular reinforcing truss; the other side of the reinforcing truss is connected with a flow divider with a conical steel pipe truss structure; the bottom of the cylindrical net box is provided with a HDPE immersed tube along the direction which is parallel to the axis; the HDPE immersed tube is full of iron sand; the flow divider is connected with a floating power supply module which can monitor the surface flowing speed. Application of the conical flow divider is good in water body fluctuation stability compared with the prior art and accordingly an instant tensile force extreme value of an anchor rope system becomes effective, risks of dragging of anchor are effectively reduced, a construction requirement for an anchoring device is reduced, and the one-way self-powered net box has the advantages of being stable in structure, protruding in flow resistance, good in stability, low in cost, low in construction process requirement, high in safety, energy saving and capable of monitoring the net cage surface flowing speed.

This invention relates to methods for rejuvenating normal somatic cells and for making normal somatic cells of a different type having the same genotype as a normal somatic cell of interest. These cells have particular application in cell and tissue transplantation. Also encompassed are methods of re-cloning cloned animals, particularly methods where the offspring of cloned mammals are designed to be genetically altered in comparison to their cloned parent, e.g., that are “hyper-young.” These animals should be healthier and possess desirable properties relative to their cloned parent. Also included are methods for activating endogenous telomerase, EPC-1 activity, and or the ALT pathway and / or extending the life-span of a normal somatic cell, and other genes associated with cell aging and proliferation capacity.

The invention relates to a device for drawing the fiber v rod of polymer photon crystal into polymer photon crystal fiber, which comprises a system control device, a diameter-measure device, a prefabricated-rod clamp is fixed on the upright post, a heating furnace under the prefabricated-rod clamp, a wire-drawing device under the heating furnace, a guide wheel under the wire-drawing device, and a wire-coiling device at the back of guide wheel. Wherein, the clamp head of prefabricated-rod clamp is connected with a sliding block; the sliding block is connected a lead-screw thread; and the lead-screw thread is connected to motor and vertical arranged on the upright post. The invention can solve the problems of present technique which needs high heating temperature, bigger device volume, high cost, and lower productivity. Said invention has the advantages of tight structure, easy process control, high property and high quality while the temperature of heating furnace is around 200Deg. C.

The invention discloses a down-flow type anti-flow net cage, including a rectangular floating pipe positioned at the top of the net cage, wherein a cylindrical net cage with a horizontal axis is connected to the lower end of the floating pipe; an annular strengthening truss is arranged at one end of the cylindrical net cage, while a flow divider with a conical steel pipe truss structure is connected to the other end of the strengthening truss; a HDPE immersed pipe is arranged at the bottom of the cylindrical net cage along the direction parallel to the axis; the HDPE immersed pipe is filled with iron sand. Compared with the prior art, better stability is provided for water fluctuation due to the application of the conical flow divider, so that the instant pulling force extreme value of an anchor line system can become effective, the risk of dragging can be effectively reduced, and thereby the construction requirement of an anchoring device can be reduced. Compared with the prior art, the HDPE immersed pipe filled with the iron sand has the advantages of balanced traction force and good stability. And therefore, the down-flow type anti-flow net cage has the advantages of stable structure, outstanding anti-flow performance, good stability, low cost and low construction technical requirements.

The invention provides a bowstring traction skin-removing system. The bowstring traction skin-removing system is characterized in that a cylinder of a semi bow (2) with the cylinder (11) is inserted into a tube cavity (9) of the other semi bow, tube fixing holes (10) and column fixing holes (12) are corrected and fixed by using fixing bolts (13), a double cable (1) penetrates through cable holes (5) of two bow feet (4), the double cable at two ends of the bow feet is fixed by transverse 8 buckles (3), when traction force is required to be increased, the cable between the fixing transverse 8 buckles and the bow feet are filled with transverse 8 buckles. The cable is made of metal, the diameter is 1-5mm, and the length is 5-50cm; a guide pin (6) is arranged at one end of the cable, the near-end of the guide pin is the cylinder, the diameter is 1-5mm, and the length is 2-5cm; and the guide pin has elasticity and can be pre-bent, and a dual-angle unimodal pin (8) is arranged at far-end ofthe guide pin. The semi bow is one half of a bow, and the radian is 0-90 degrees; the hollow tube cavity (9) is formed in the near-end of one of the half, the internal diameter is 5-20mm, the one to three tube fixing holes (10) are formed in the hollow tube cavity, and the hole pitch is 1-5cm; and the cylinder (11) is arranged at the near-end of the other semi-bow, the four to ten column fixing holes (12) are formed in the cylinder, and the hole pitch is 1-5cm.

The invention discloses an anus retractor which comprises a main ring (1). A plurality of channels (2) extending from inside to outside are circumferentially arranged on the main ring (1), pull wires(3) capable of sliding in the channels (2) penetrate the channels (2), one end of each pull wire (3) is connected with a retractor head (4) capable of internally hooking perianal tissues, and the other end of each pull wire (3) is connected with a movable pull wire (5) capable of moving relative to the main ring (1) and pulling each pull wire (3) to slide in the corresponding channel (2). The anusretractor is simple in structure, convenient to operate, good in stability and uniform in pulling force.

The invention provides a scroll saw driven by electromagnets. The scroll saw comprises a machine base, a machine frame, a saw blade and a work table, the work table is connected with the machine base, the machine frame is arranged on the machine base, the inner side of the machine frame is provided with a guide rail and is provided with an arch saw frame, the upper end opening of the inner side of the machine frame is connected with the upper electromagnet, the lower end opening of the inner side of the machine frame is connected with the lower electromagnet, each electromagnet is formed by a yoke, a solenoid and an armature core, the yokes are connected with the machine frame, the armature cores are connected with the outside of the saw frame, a spring is arranged between each armature core and the corresponding solenoid in a sleeved mode, one end of each spring abuts against the bottom of the corresponding yoke, the other end of each spring abuts against the outside of the saw frame, the position, corresponding to the upper electromagnet, on the inner side of the saw frame is connected with an upper hook through a spring plate, the position, corresponding to the lower electromagnet, of the lower portion of the saw frame is connected with a lower hook, the saw blade is hung on the upper hook and the lower hook, one end of the spring plate is fixedly connected with the saw frame, the other end of the spring plate is hung on the upper hook through a round hole, the middle of the upper hook is provided with a shoulder abutting against the upper end face of the round hole, the middle of the spring plate is provided with a regulating screw, and currents passing through the solenoids are controlled by an electrical appliance. The scroll saw has the advantages that movement is stable, efficiency is high, traction force is balanced and saw teeth can be protected.

The invention discloses an improved structure of a lower jaw support of a traction apparatus for treating cervical spondylosis. The improved structure of the lower jaw support of the traction apparatus for treating the cervical spondylosis comprises a lower jaw support, shoulder supports and ejector rod components; the improved structure of the lower jaw support of the traction apparatus for treating the cervical spondylosis is characterized in that the lower jaw support comprises a lower jaw support main body and a back support for fixing the lower jaw support main body; two shoulder supports are provided; each shoulder support comprises a cambered surface-shaped shoulder support body which transversely leans on a human shoulder and is matched with the human shoulder, and a vertical support plate which is arranged on the inner side of the cambered surface-shaped shoulder support body; the lower jaw support main body forms a bent arc; upper edges of two sides of the lower jaw support main body are matched with two lower jaws; and two ejector rod components are connected between two sides of the lower jaw support and the vertical support plates of the shoulder supports on the two sides of the lower jaw support respectively. Compared with the prior art, the improved structure of the lower jaw support of the traction apparatus for treating the cervical spondylosis has the advantages that: the traction is uniform; and the shoulder supports can lean on shoulders of a user well.

The invention discloses an optical cable spreading burying machine which comprises a travelling vehicle, a grooving device, a cable feeding device, an optical cable underground device and an earth covering device. The grooving device comprises a disc cutting device, a first hydraulic motor which drives travelling wheels or travelling crawler belts to travel is arranged on the traveling vehicle, and a second hydraulic motor which drives the disc cutting device to rotate is arranged on the grooving device. The optical cable spreading burying machine further comprises a power distribution device, the power distribution device comprises a hydraulic master pump driven by the motor of the traveling vehicle, high-pressure hydraulic of the hydraulic master pump is distributed to a hydraulic distributor of the first hydraulic motor, a hydraulic distributor of the second hydraulic motor, a first electromagnetic valve and a second electromagnetic valve, the first electromagnetic valve is arranged between the hydraulic distributor of the first hydraulic motor and the first hydraulic motor and controls the operation of the travelling wheels and the travelling crawler belts, and the second electromagnetic valve is arranged between the hydraulic distributor of the second hydraulic motor and the second hydraulic motor and controls the rotation direction of the disc cutting device. The optical cable spreading burying machine is purely controlled by hydraulic pressure, is compact and simple in structure, can travel and groove synchronously, and can achieve composite force distribution of power of the parts.

The invention relates to a prefabricated building laminated slab. The prefabricated building laminated slab comprises rectangular laminated slab bodies and pouring slabs poured on the laminated slab bodies, wherein a plurality of reinforcing steel bars which are criss-crossed in the horizontal direction are arranged on the upper surfaces of the laminated slab bodies; the laminated slab bodies comprise a plurality of reinforcing steel channels fixedly connected with the reinforcing steel bars, the reinforcing steel channels are close to the end faces of the laminated slab bodies in the horizontal direction correspondingly, and the reinforcing steel bars penetrate through the reinforcing steel channels and stretch out of the laminated slab bodies; and a plurality of inserting holes allowingthe reinforcing steel bars to be inserted are formed in the reinforcing steel channels, and movable steel channels used for fixing the reinforcing steel bars inserted along the inserting holes are slidably arranged on the upper surfaces of the laminated slab bodies. The prefabricated building laminated slab has the effects that the gap between the two laminated slab bodies is reduced, the tractionforce borne by the laminated slab bodies is balanced, operation is convenient, the structural strength of the laminated slab bodies is not prone to be damaged, and the alignment process between everytwo adjacent laminated slabs is convenient.

The invention discloses a multifunctional traction frame for an intensive care unit, which belongs to the field of medical equipment, and is characterized in that it includes a bracket, a fixer, a pulley, a pillow seat and a brake line; the fixer is provided with a fixing device, which can The fixer is installed and fixed on the tail end of the hospital bed; the lower end of the bracket is hinged with the fixer, and the bracket can swing left and right; the bracket is a telescopic rod-shaped structure; the bracket is provided with multiple pulley; the pillow seat includes a bottom plate, an inclined plate, a connecting rod, a slider and a brake line; there are two brake lines; the two ends of the brake line are located on the pillow seat and the fixer respectively. Compared with the prior art, the utility model has the characteristics of adjustable height and angle.

The invention provides a transverse paper feeding device. The transverse paper feeding device is characterized in that a bottom paper side retaining device comprises a guide shaft, a positioning retaining plate, side beating retaining plates, a movable hand wheel and a side beating movable hand wheel; the paper feeding device comprises an air suction paper feeding device which consists of a paper feeding driven roll, a paper feeding air suction belt and a paper feeding driving roll; a pressing device comprises a pressing driving roll, a pressing air suction belt, a pressing driven roll and a plurality of upper pressing rolls; an air suction paper guide device and an upper pressing device are arranged between the air suction paper feeding device and a water applying roll, the air suction paper guide device consists of a paper guide driving roll, a paper guide air suction belt and a paper guide driven roll, the upper pressing device consists of an upper press driving roll, an upper pressing belt and an upper pressing driven roll, the upper pressing driven roll is positioned above the paper feeding driving roll, and a glue applying roll is positioned above the water applying roll; an air suction conveying device is arranged between the glue applying roll and the pressing device, and consists of the conveying driving roll, a conveying air suction belt and a conveying driven roll. The transverse paper feeding device has the advantages that the paper is supported and conveyed by the air suction belt in the whole process, the transverse paper feeding device is suitable for the longitudinal and transverse paper feeding of bottom paper, the paper conveying time is shortened, and the production efficiency is improved.

The invention provides a beam end mounting method of a stay cable. The method comprises the steps of arranging a soft traction device consisting of a power mechanism and a first force transmission mechanism and hoisting the soft traction device to the lower end of a beam end steel anchor box for mounting; conveying the stay cable to make a lower anchor head of the stay cable close to the steel anchor box; adopting a second force transmission mechanism for connecting the soft traction device and the lower anchor head of the stay cable; starting the soft traction device, and conducting tractionon the second force transmission mechanism to lead out the lower anchor head of the stay cable through the steel anchor box; anchoring the lower anchor head of the stay cable, and disassembling the second force transmission mechanism and the power mechanism to complete the beam end mounting process of the single stay cable. By means of the scheme, the stability of force transmission in the beam end mounting process of the stay cable is ensured, and meanwhile the construction efficiency is improved.

The invention discloses a non-invasive uterus retractor capable of being operated with one hand. The retractor comprises a push rod, pull buckles, a fixing rod, a fixing plate, grabbing rods and connecting rods; one end of the fixing rod is provided with the fixing plate, the edge of the side, away from the fixing plate, of the outer side wall of the fixing rod is symmetrically provided with a pair of pull buckles, the four grabbing rods are hinged to the edge of the side, away from the fixing rod, of the outer side wall of the circular fixing plate through torsion springs at equal intervals,the ends, away from the fixing plate, of the grabbing rods are provided with the connecting rods parallel to the fixing plate, and a mounting groove is formed in the portion, between every two adjacent grabbing rods, on the fixing plate. According to the non-invasive uterus retractor, a piston is provided with reset springs, the fixing rod is provided with the pull buckles and the push rod respectively so that the medical staff can conveniently adjust the tightness of a connecting rope with one hand in the use process, expanding or tightening of the grabbing rods is controlled accordingly, andthe operation convenience of the medical staff is improved; the medical staff can conveniently grab the uterus for pulling through the pull buckles, so that the uterus is conveniently pulled out by the medical staff.