136results about How to "Adjust the elasticity" patented technology

The inventive vibration absorber comprises an execution unit, a control unit and a sensor. The execution unit consists of a magnetic inductor, a coil, a magnetic rheological elastic body, a vibration-absorbing mass block and a base. The above magnetic inductor consists of inner and outer sleeves, or a U-shaped iron-core and an armature or top and bottom plates and a column iron-core. Between inner and outer sleeves, the U-shaped iron-core and the armature or the top and bottom plates are filled the magnetic rheological elastic bodies. By regulating the voltage on the coil, the rigidity and the elasticity of the magnetic rheological elastic body are regulated to make its vibration frequency change, so as to make the vibration frequency of the vibration absorber execution unit is the same as that of the vibration-damping object.

The invention belongs to the field of biomedical materials, and particularly relates to photo-curing hydrogel for multi-cell sorting and stem cell area-selecting differentiation and a preparation method thereof. The photo-curing hydrogel is prepared by taking modified high-polymer materials with the photo-curing performance as raw materials and are divided into multiple different areas by straight-stripe-shaped or net-stripe-shaped or annular-stripe-shaped micro-pattern structures, the hardness of the photo-curing hydrogel in the same area is same, the hardness of the photo-curing hydrogel in the different areas is same or different, and the overall photo-curing hydrogel at least has two kinds of the hardness. According to the photo-curing hydrogel for multi-cell sorting and stem cell area-selecting differentiation and the preparation method thereof, on one hand, the elasticity moduli of all the areas of the photo-curing hydrogel are different by controlling the ultraviolet radiation curing degree; on the other hand, all the areas with the different elasticity moduli present the micro-pattern structures on the photo-curing hydrogel, selective adhesion, proliferation and differentiation of cells on the photo-curing hydrogel can be achieved by combining the elasticity moduli with the micro-pattern structures, and therefore controllable cell sorting or stem cell area-selecting differentiation can be achieved.

The invention relates to an acidic and transparent silicone weather-resistant sealant for construction, and belongs to the technical field of adhesives. The acidic and transparent silicone weather-resistant sealant is prepared from the following components in parts by weight: 50-150 parts of hydroxyl terminated polydimethylsiloxane, 20-140 parts of methyl terminated polydimethylsiloxane, 10-60 parts of fumed silica, 5-40 parts of a cross-linking agent, 0.05-0.5 part of a catalyst and 0.05-5 parts of a composite anti-yellowing agent. The acidic and transparent silicone weather-resistant sealant has the advantages of high strength, good adhesive performance, excellent weather resistance, quick crosslinking curing at room temperature and the like, and can be widely applied to weather-resistant sealing of glass curtain walls, glass daylighting roofs and other constructional engineering.

The invention relates to a preparation method of an elastically-crosslinked water-fast polyurethane modified polyacrylate emulsion and a product prepared by using the preparation method. The preparation method comprises the following steps: preparing for raw materials including a polyurethane monomer, a polyacrylate monomer, a functional monomer, an adjuvant and water; carrying out bulk polymerization; carrying out blocking; carrying out emulsion; and carrying out emulsion polymerization to prepare the elastically-crosslinked water-fast polyurethane modified polyacrylate emulsion. A polyurethane long-chain crosslink with a certain density, a moderate amount of crosslinked active groups and a water-repellent side long chain are introduced into a molecule of the material, so that various textile coatings or pigment printing glue films have excellent water fastness, good color fastness, remarkable flexibility as well as certain water repellency and antifouling ability, so that the elastically-crosslinked water-fast polyurethane modified polyacrylate emulsion has a good market prospect; and the product is safe, environment-friendly and convenient to use and can be used for the field ofvarious substrate processing such as coating, textile adhesion, pigment printing and pigment dyeing.

The invention discloses a take-up reel capable of preventing a cable from being wound during winding for electric power and electrical engineering and a use method thereof, and belongs to the technical field of electric power and electrical engineering. The take-up reel comprises a take-up frame, wherein a set of self-locking universal wheels are installed on the bottom surface of the take-up frame, and a take-up reel body is arranged in the take-up frame; the left side surface and the right side surface of the take-up reel body are each provided with a set of limiting holes, a first motor is fixedly embedded in the left side surface of the take-up frame, the output end of the first motor is fixedly connected with a first clamping plate, and the right side surface of the first clamping plate is fixedly connected with a set of first limiting blocks. According to the take-up reel, through cooperative arrangement of the take-up frame, the take-up reel body, the first motor, a first clamping plate, a first limiting block, a limiting hole, a wiring mechanism, a cable guiding mechanism and a pressing assembly, the cable can be evenly wound on the outer surface of the take-up reel body, such that the situation that the cable is wound, knotted and loosened during winding can be avoided, and the cable can be prevented from being damaged.

The high temperature alloy protecting technology includes the first forming binding layer in the same components as the substrate on the surface of the high temperature alloy substrate and the subsequent baking composite oxide coating on the surface. The composite oxide coating consists of basic enamel material and added Al2O3 or MgO in 10-40 wt% and Y2O3 in 1-5 wt%; and the basic enamel material consists of ZrO2 3-6 wt%, Al2O3 3-6 wt%, ZnO 8-12 wt%, CaO 3-6 wt%, B2O3 3-6 wt%, Na2O 3-6 wt%, K2O 5-8 wt%, TiO2 1-4 wt% and SiO2 for the rest. The present invention raises the high temperature oxidation resistance and heat corrosion resistance of the substrate and raise the stripping-off resistance of the coating and avoids the mutual diffusion between elements.

The invention relates to a knee joint power-assisted protective device comprising a femur support bar, a shank support bar, an energy storage spring, bandages and a connector; in usage, the bandages respectively bind the femur support bar and the shank support bar on the thigh and shank; in climbing, the femur support bar and shank support bar can transfer a bending leg force to the energy storage spring so as to deform the spring, and the elastic potential energy can be stored, i.e., the non-main load muscle group and non-power using peak energy can be stored; when the body leans and uses the legs to lift body, the elastic potential energy stored by the energy storage spring can work to alleviate the load in the power using peak in climbing motions; in each step when a person walking down the floor, the device can transfer partial the load to the thigh end and the heel portion in the shoe, thus buffering impact load, and bearing partial the body weight load. When walking on a flat land in daily life, the device can also share the load so as to protect the knee joint; the knee joint power-assisted protective device can conveniently switch between a work state and a non-work state without wearing on or taking off the device.

The invention discloses a damping device for a casting machine. The damping device for the casting machine comprises a base plate. Supporting columns are fixedly connected with the four corners of theupper surface of the base plate. A cross rod is connected between every two bilateral-symmetry supporting columns in a sliding manner. The upper surface of the base plate is transversely provided with sliding grooves corresponding to the cross rods in position. The left side wall and the right side wall, opposite to each other, of each sliding groove are both fixedly connected with damping springs. The other ends of the damping springs are both fixedly connected with sliding blocks. The bottom portion of each cross rod is fixedly connected with two symmetrical connection blocks. A transmission rod is jointly and rotationally connected between each connection block and the corresponding sliding block through connection shafts. The upper end rod walls of the two cross rods are jointly connected with the casting machine. U-shaped connection blocks are fixedly connected with the four corners of the lower surface of the base plate. The damping device for the casting machine is convenient to operate and capable of achieving damping of the casting machine, the elastic force of the damping springs can be adjusted, noise generated by shake is lowered, the casting machine is convenient to move, and braking of the casting machine is also convenient.

The invention discloses a mechanical behavior device for simulating a cigarette ash dropping process by a person, which is characterized by comprising a cigarette clamping mechanism, a cigarette lighting device located right in front of the cigarette clamping mechanism, a cigarette striking device located at one side of the cigarette clamping mechanism and an optical sensing device located at the other side of the cigarette clamping mechanism. The device of the invention has the advantages that through researching on the mechanical behavior when a person drops the cigarette ash, high consistency between the mechanical behavior when a mechanical device drops the cigarette ash and the actual mechanical behavior can be ensured; and the optical sensing device monitors the surface temperature of a burning cone during a cigarette smoking process, the cigarette end dropping phenomenon is recorded in real time through temperature detection, and automation and intelligence of the striking device are improved.

The invention provides a polyamide monofilament, and a production method and an application thereof. A raw material for producing the polyamide monofilament comprises polyamide resin, and the polyamide resin is produced from 1,5-pentamethylenediamine and aliphatic long-carbon chain diacid. The production method of the polyamide monofilament is characterized in that polyamide monofilament is obtained through spinnereting, cooling molding, drawing and winding setting of dried polyamide resin. The raw material for producing the polyamide monofilament contains a monomer with the carbon number being an odd number, so a hydrogen bond proportion formed among molecules of an amido group, the crystal form and molecular chain space arrangement are different from those of conventional polyamide monofilaments produced from a monomer with the carbon number being an odd number; and the polyamide monofilament provided by the invention has a lower initial modulus and a higher bending resilience than the conventional polyamide monofilaments, and can be used to produce super soft filament and prolong the service life of the super soft filaments.

The invention discloses an automatic paper feeding mechanism of a digital creasing machine. The automatic paper feeding mechanism of the digital creasing machine comprises a paper loading unit, a paper pickup unit and a double-paper feeding preventing unit, wherein the paper loading unit, the paper pickup unit and the double-paper feeding preventing unit are sequentially arranged between a left side plate and a right side plate; a paper feeding platform can automatically ascend or descend by using the paper loading unit; the paper pickup unit can automatically pick up paper when the paper feeding platform rises and the paper is conveyed in place; and the double-paper feeding preventing unit can guarantee that a single piece of paper is fed at a time. By the automatic paper feeding mechanism of the digital creasing machine, automatic paper feeding operation can be realized, the paper feeding efficiency is high, and the problem that a creasing component is failed due to double pieces of paper are fed at a time can be solved.

The embodiment of the invention discloses a windscreen wiper and relates to the technical field of automobile parts. The windscreen wiper is used for solving the problem that the existing windscreen wiper is easy to influence the normal driving of a driver. The windscreen wiper comprises a wiper arm seat and a wiper arm which are hinged; the wiper arm seat is connected with an arc hook; the arc hook is connected with one end of the spring; and the other end of the spring is connected with the wiper arm, wherein the other end of the spring is connected with a regulating device for regulating the deformation quantity of the spring and the regulating device is fixedly connected with the wiper arm. The windscreen wiper is used for cleaning rain, snow and dust on a windscreen.

The invention discloses an intelligent projection system for visual communication, wherein the intelligent projection system comprises a projector and a supporting plate; one end of the projector is in threaded connection with a lens cone, a notch is formed in the top end of the supporting plate, and a position adjusting and gravity center balancing mechanism is arranged in the notch; and the position adjusting and gravity center balancing mechanism comprises a concave plate, a limiting rod, a lead screw, a rotary knob, a placing plate, a sliding plate, a groove, a movable plate, a transmission gear, a tooth bulge, a mounting plate, a rack and a counterweight plate. The structure is scientific and reasonable, and the use is safe and convenient; a position and gravity center adjusting mechanism is arranged, the lead screw is driven to rotate through the rotary knob, and the concave plate is pushed to move; and the concave plate is limited by the limiting rod, so that the concave plate slides in the notch, transverse fine adjustment is carried out on a projection picture, and the convenience of the device is improved; in addition, in the transverse fine adjustment process, the concave plate drives the sliding plate to move together, and meanwhile power is transmitted through cooperation of the transmission gear, the tooth bulge and the rack.

The invention provides a preparation method for a high-elastic rubber foamed shoe sole. The raw materials comprises, in parts by weight, 250-500 parts of natural rubber, 20-40 parts of talcum powder, 2-5 parts of an anti-ageing agent, 2-4 parts of a rubber promoter M, 2-6 parts of zinc stearate, 2-6 parts of a rubber promoter DM, 4-8 parts of zinc oxide, 5-15 parts of sodium bicarbonate, 5-10 parts of polyethylene glycol, and 2-6 parts of AC foaming agent. Also, the shoe sole is applied to prepare a rubber foamed shoe, and the rubber foamed shoe comprises the sole and a vamp which are in adhesive connection. The thickness of the sole is 0.2-1.2 cm, the top surface of the sole is provided with an antiskid thread, the bottom surface of the sole is provided with water-discharging grooves which are distributed at equal intervals and run through the left and right ends of the sol, the distance of adjacent water-discharging grooves is 0.1-0.5 cm, and the wall of the water-discharging groove is provided with a groove gradually oblique from the top to the bottom of the water-discharging groove. The sole possesses good elastic effect, is resistant to wear and is not easy to deform. The shoe prepared by using the sole is comfortable to wear, and the preparation technology is simple.

The invention discloses a stable type adjustable spring support hanger which comprises a shell, a main spring, an auxiliary spring and a push rod assembly. The top end of the main spring is connectedwith a load plate slidably arranged inside the shell. An installing hole is formed in the center of a base plate of the shell, an installing plate matched with the installing hole is connected to thebottom of the auxiliary spring, the auxiliary spring penetrates through the installing hole from bottom to top to be arranged in the middle of the main spring, fixation is achieved through threaded connection between the installing plate and the installing hole, the push rod assembly comprises a push rod, an auxiliary gear, a spiral rod and a main gear, the auxiliary gear is meshed with the maingear, the bottom end of the push rod penetrates through the top plate of the shell to be arranged above the load plate, and the push rod is in threaded connection with the top plate of the shell. By means of the detachable auxiliary spring, the support hanger elasticity can be adjusted, the main gear drives multiple push rods to rotate at the same time, vertical motion is achieved, stability of the load plate is ensured, and the support is convenient to use and good in safety performance.

The invention relates to the technical field of one-way valves, and discloses a throttle valve with a cleaning structure and a flow-slowing structure and capable of adjusting the flow rate. Accordingto the throttle valve, a screw rod (8), a supporting plate (9), a threaded joint (10), a clamping plate (14), a brush (20) and the like are arranged, water flow pushes the clamping plate (14) so thatthe supporting plate (9) can move and rotate on the screw rod (8) through the threaded joint (10), and therefore the brush (20) on the clamping plate (14) is driven to clean the interior of a valve body; and meanwhile, a buffer spring (13) is matched to drive the supporting plate (9) to move and rotate back and forth, and therefore the brush (20) can clean the interior of the valve body all the time, sundries such as moss which can destroy water quality can be prevented from growing in the valve body, periodical cleaning is not needed, and the labor burden of workers can be greatly reduced.

The invention discloses a fabric compounding device with deodorizing and refreshing functions. The fabric compounding device comprises a machine shell; a compounding chamber and a deodorizing chamberare sequentially arranged in the machine shell in the material conveying direction; a feeding mechanism, a gluing mechanism, a pair of composite pressing rollers and a re-pressing mechanism are sequentially arranged in the compounding chamber in the material conveying direction; the feeding mechanism comprises an upper feeding line and a lower feeding line which are arranged up and down; the upperfeeding line comprises two pairs of first guide wheels, a pair of heating rollers and a pair of second guide wheels which are arranged in the conveying direction, and a cleaning structure is arrangedbetween the two pairs of first guide wheels; the lower feeding line comprises two pairs of first guide wheels and a pair of heating rollers which are arranged in the conveying direction, and a cleaning structure is arranged between the two pairs of first guide wheels. The fabric can be subjected to dust removal, preheating and softening before compounding, and glue is more uniform and deeply permeates the fabric; meanwhile, the re-pressing mechanism is arranged, the subsequent gluing and compounding quality is guaranteed, and a fragrance fumigator can be used for removing odor and fumigatingthe compounded fabric.

The invention provides an automatic sorting and feeding device. The automatic sorting and feeding device comprises a frame body, a feeding rack, an arrangement mechanism, a shifting mechanism and a feeding rod. The automatic sorting and feeding device is used for sorting and conveying pipe materials, the pipe materials can be conveyed one by one instead of being conveyed bundle by bundle, and the pipe materials are prevented from deviating and are stably conveyed to the next process; the automation degree is high, labor cost is reduced, and safety and reliability are guaranteed.

The invention relates to a reciprocating piston internal combustion engine having at least one camshaft with at least one sliding cam element with sliding cams and sliding grooves (2 and 2a) intersecting in an X-shape, wherein the sliding cam element with internal teeth (4) is mounted for conjoint rotation but axially movably on a toothed shaft (5), and wherein a guide element is fixed between the sliding grooves (2 and 2a), which guide element has elastically movable switch blades (10 and 10a) that are guided on a rotary joint plate (12) mounted in the intersection area. The engine further comprises an actuator device with at least one actuator pin (9) movable out of a housing, wherein the actuator device can be mounted on a component of a cylinder head or on the cylinder head of the reciprocating piston internal combustion engine, and, after having moved out, the actuator pin (9) comes into connection with at least one sliding groove (2 or 2a) of the sliding cam element, said guide element being constructed as a C-shaped spring (6) and fixed, at least at the ends thereof, on the toothed shaft (5).

The invention belongs to the field of rehabilitation training, particularly relates to a limb weight-bearing exercise device for rehabilitation exercise of a bedridden patient, and provides the following scheme aiming at the problems that an existing rehabilitation training device used in the market is tedious in weight adjustment and not accurate enough in weight adjustment. The limb weight-bearing exercise device comprises a movable frame and a box shell, a supporting column is fixedly connected to the upper surface of the movable frame, a guide rod is fixedly connected to one side of the supporting column, two sliding plates are movably connected into the guide rod, two leg supports are fixedly connected to the bottoms of the sliding plates, the leg supports are symmetrically distributed, and one end of the guide rod is fixedly connected with a first fixing frame. According to the invention, the elasticity of a spring can be adjusted by operating an adjusting mechanism, operation is simple, rapid and accurate, the device adapts to different patients, meanwhile, the legs of the patients can be massaged during training, the rehabilitation speed of the patients is increased, the device and a sickbed can be rapidly fixed, and the stability of the device is improved.

The invention relates to the field of fabricated buildings, in particular to a fabricated building damping structure. The fabricated building damping structure comprises a base, a support seat and a protective cover. A first adjusting rod is arranged on the upper side of the base. A plurality of first adjusting holes are symmetrically formed in the left side and the right side of the first adjusting rod. First adjusting plates are symmetrically arranged on the left side and the right side of the first adjusting rod. The first adjusting plates are connected with the first adjusting rod throughthe cooperation of first adjusting bolts and the first adjusting holes. A first damping mechanism is arranged on the inner side of each first adjusting plate. Second adjusting rods are symmetrically arranged on the left side and the right side of the lower side of the support seat. A plurality of second adjusting holes are formed in the second adjusting rods. Second adjusting plates are mounted onthe second adjusting rods. The second adjusting plates are connected with the second adjusting rods through the cooperation of second adjusting bolts and the second adjusting holes. Second damping mechanisms are arranged on the lower sides of the second adjusting plates. The fabricated building damping structure is good in damping effect, capable of meeting different use requirements and high inpracticability.

The invention discloses a development method of a flame-retardant antistatic wear-resistant and easily degradable bubble film. The bubble film comprises the following raw materials: LDPE, LLDPE, HDPE,calcium carbonate B202, 5000S, a modified natural fiber (corn starch), antistatic powder, and isopropyl trititanate; the development method comprises the following steps: adding the natural fiber (corn starch) to water with a pH value of 3, heating, drying, and grinding into power; mixing the light calcium carbonate B202 with the isopropyl trititanate, stirring, then mixing with natural fiber powder, and performing granulation after mixing; blending the HDPE with natural fiber powder particles to obtain natural fiber coated particles; mixing the 5000S, the LDPE, the LLDPE, and the antistaticpowder with the natural fiber coated particles, and finally preparing the bubble film. The bubble film, developed by the development method, is strong in flame-retardant capability, environmentally-friendly, high in recovery rate, strong in toughness, long in storage time and excellent in application effect, and the bubble film material is easily degradable.

The invention provides an adjustable security trampoline. The adjustable security trampoline comprises a bounce cushion, a frame, a flexible rod, a plurality of support structures and a plurality of support rods; the top end of the flexible rod is arranged at the periphery of the bounce cushion; the bottom end of the flexible rod is mounted on the frame, so that the bounce cushion is erected abovethe frame; the support mechanisms are supported below the frame to ensure that the frame is divorced from the ground; the support rods are arranged around the bounce cushion so as to expand a protection screen above the bounce cushion; the bottom of the protection screen is arranged at the periphery of the bounce cushion; the flexible rod is a rod-shaped structure with a thicker bottom and a thinner top; the flexural rigidity of the flexible rod is greater than 500 N/m and smaller than 1200 N/m; the bottom end of the flexible rod is fixedly mounted on the frame through a bottom end mounting structure; the top end of the flexible rod is fixedly mounted at the periphery of the bounce cushion through a snap joint structure.

The invention discloses an inner packaging material for Chinese tradition medicine, and a preparation method of the inner packaging material, belonging to the technical field of the preparation of the packaging material and aiming at providing a high temperature- and low temperature-resistant inner packaging material for Chinese traditional medicine. The technical point of the inner packaging material for the Chinese tradition medicine is that: the material comprises the following components by weight: 40%-60% of a paraffin wax; 20%-40% of a resin compound; 10%-30% of a lubricant; 3%-13% of a toughening agent, and the sum of every component is 100%; the preparation method comprises the steps of: weighing every component, adding paraffin wax into a wax cooking pan, stirring, and heating at 140 DEG C-160 DEG C for 5-20 minutes; then adding the resin compound and a calcium salt modifier, uniformly stirring, and heating at 140 DEG C-160 DEG C for 45-75 minutes; finally adding the lubricant and the toughening agent, and heating at 140 DEG C-160 DEG C for 20-40 minutes to obtain a wax liquid; cooling to 60 DEG C-80 DEG C, making shell, loading pill, sealing, and printing to obtain the final product.