32results about How to "Simplified installation requirements" patented technology

The invention discloses a preparation method of a solid fluorescent carbon quantum dot material. The preparation method comprises the following steps: first, weighing a proper amount of citric acid, urea and sodium carbonate, and putting the weighed materials into a heat-resistant glass container, wherein the mass ratio of the citric acid to the urea to the sodium carbonate is 1:1:(0.5-1); then, adding distilled water into the container to prepare a transparent solution, wherein the mass-volume ratio of the total mass of the citric acid, the urea and the sodium carbonate to the distilled wateris 80-85 g/100 mL; and carrying out heating at a temperature of 80-100 DEG C in a microwave oven for 4-6 minutes, taking out the target product, placing the target product in a dark box ultraviolet analyzer, carrying out irradiating with an excitation wavelength of 365 nm to enable the target product to emit yellow-green fluorescence, and carrying out steady-state spectrum testing on the obtainedtarget product, wherein the testing result is that the emission wavelength under an excitation wavelength of 280-480 nm is in a range of 510-530 nm. The prepared solid fluorescent carbon quantum dotscan be applied to preparation of white light emitting diodes, solar cells, lasers and the like.

The invention relates to a shield method tunnel lining structure pre-buried groove connecting element and an installing method thereof. The equipment installation after the shield method tunnel communication becomes an important limitation factor for influencing the long-term durability of the tunnel, and a method of additionally installing connecting elements for artificial pick drilling causes the problem that the stability and the durability of the connecting elements cannot conform to the existing design standard. A stripped sliding groove is annularly pre-buried in a lining structure, the cross section of the sliding groove is in a rectangular shape, a stripped notch with the smaller outer side and the greater inner side is formed inside a tunnel, the groove bottom is fixedly arranged on the lining structure through a double-head anchor nail, a plurality of T-shaped screw bolts capable of freely sliding are arranged in the sliding grooves, the end part enlarging heads of the T-shaped screw bolts are clamped and embedded in the sliding grooves, and the exposed parts of the T-shaped screw bolts inside the tunnel are fixed with a gasket through screw bolts. The groove connecting element and the installing method provided by the invention have the advantages that the groove connecting elements are pre-buried inside the shield method tunnel lining structure, the T-shaped screw bolts can freely slide in the pre-buried groove, and the exposed parts of the T-shaped screw bolts inside the tunnel can meet the equipment installing requirements in any positions.

The invention discloses a flexible solar wing with a shear fork type unfolding mechanism. The flexible solar wing comprises the shear fork type unfolding mechanism and a flexible solar wing body; and the shear fork type unfolding mechanism is connected with the flexible solar wing body. The flexible solar wing has the advantages of simplicity, light weight and large unfolding and folding ratio.

The invention discloses a crankshaft transmission mechanism of multiple eccentric disc sets. The crankshaft transmission mechanism comprises a crankshaft support, a shaft and the eccentric disc sets. The crankshaft transmission mechanism is characterized in that the multiple eccentric disc sets are arranged on the shaft, each eccentric disc set comprises an eccentric disc fixing seat, a bearing, an eccentric disc outer ring, an eccentric disc and a sealing device, wherein the eccentric disc is arranged in the eccentric disc outer ring through the bearing, the eccentric disc outer ring is fixed to the eccentric disc fixing seat through a pin shaft, and the eccentric disc and the eccentric disc outer ring are sealed through a sealing device; and labyrinth seal is adopted in the sealing device. According to the crankshaft transmission mechanism, the eccentric disc sets serve as a whole module to be installed on the shaft through an expansion sleeve; in the installation and maintaining process, the crankshaft transmission mechanism is more convenient and flexible; and the number of the eccentric disc sets can be symmetrically increased and decreased in paired according to needs, and therefore the requirement of crankshaft transmission in different bounce sorting machines is met, and the using and maintaining cost is reduced.

The invention discloses a combined type roller for spinning machine drafting mechanism, and mainly relates to the technical field of textile machinery. The roller comprises a bearing inner sleeve, a shaft sleeve, a shaft, an outer sleeve and a bearing; the shaft penetrates through a rubber ring to be cooperatively connected with the bearing inner sleeve and the bearing sleeve in sequence, a secondcheck ring sleeves the end of the shaft, and a second gasket abuts against the shaft sleeve; a nylon ring sleeves the middle of the shaft, and the lower portion of a shaft sleeve is sleeved with theinner side of a bearing inner sleeve; the bearing inner sleeve is integrally nested in the bearing, the bearing is nested in the outer sleeve, and the two ends of the bearing abut against the outer sleeve and a first check ring respectively; a dust cover is clamped in the outer sleeve. The roller can perform enough compensation, the spinning quality is greatly guaranteed, the sealing property is good, the service life is long, and the application range is wide.

The invention discloses a lightweight rear suspension structure applied to electric automobiles. The lightweight rear suspension structure comprises a monolithic-leaf plate spring made of a compositematerial, wherein the front end of the monolithic-leaf plate spring is connected with a front spring eye; the rear end of the monolithic-leaf plate spring is connected with a rear spring eye; the middle part of the monolithic-leaf plate spring is located in a rear axle plate spring seat; the middle part of the monolithic-leaf plate spring is equipped with a backing plate frame and two U-shaped bolts; the two U-shaped bolts are connected to the backing plate frame through nuts; the backing plate frame is clung to the bottom of the rear axle plate spring seat; the backing plate frame, the monolithic-leaf plate spring and the rear axle plate spring seat are fixedly connected with each other through rivet heads; the backing plate frame is articulated with a damper; the upper end of the damperis connected to an automobile body longitudinal beam. Compared with the existing rear suspension, which adopts (3 plus 2)-leaf two-stage stiffness springs, the lightweight rear suspension structure only adopts one monolithic-leaf plate spring made of the composite material, so that the mounting requirement is simplified; the weight of the monolithic-leaf plate spring is only 1/3 of the weight of the original steel plate spring; the inner damping resistance among leaves does not exist in the monolithic-leaf plate spring; the stiffness change is more linear; and the driver and the passengers feel more comfortable.

The invention discloses a power joint device adapting to different power tools. The power joint device comprises a device body which comprises a clamping part and a supporting platform, wherein the clamping part is used for clamping screws, the supporting platform is used for fixing the clamping part, the clamping part comprises joints for clamping different specifications of screws, the joints include a joint I, a joint II and a joint III, and the joint I is welded with the supporting platform. The device can form linkage structures with multiple power tools through different power joints, the clamping part can be used for clamping different specifications of the screws, and the supporting platform can be used for supporting the clamping part, so that the power joints can be advantageously connected with the power tools; and the joint I, the joint II and the joint III can be connected with different specifications of the power tools, so that the applicability and durability of a product can be improved, the use efficiency is improved, and the damaging risk is reduced.

The invention discloses a reverse osmosis membrane host siphon breaking concentrated water discharging device, which comprises a cylinder, a top cover is arranged at the top of the cylinder, a bottomcover is arranged at the bottom of the cylinder, the top cover, the bottom cover and the cylinder are fixedly connected through bolts and nuts, and an air inlet pipe is fixedly communicated with the inner top wall of the top cover. A pressure pump is fixedly installed on the inner top wall of the top cover through a support, the input end of the pressure pump is communicated with the bottom of theair inlet pipe, the output end of the pressure pump is fixedly communicated with a connecting pipe, the two inner side walls of the barrel are communicated with a concentrated water inlet pipe and acleaning liquid inlet pipe respectively, and an aeration descaling mechanism is arranged in the barrel. Concentrated water can be collected and stored, the pressure pump can pressurize ozone and inject the ozone into the air cylinder, the ozone is sprayed out through the spraying pipe, and aeration treatment is conducted on the concentrated water in the cylinder; meanwhile, the driving motor drives the air cylinder to rotate through the connecting plate, the connecting frame and the second transverse plate, and therefore the ozone can make uniform contact with the concentrated water.

The invention discloses an inner channel cleaning device connected with a mechanical component. The mechanical component comprises an inner channel. The inner channel cleaning device comprises a cleaning pipeline communicating with the inner channel. The inner channel cleaning device further comprises a drive mechanism and a rotation mechanism. The rotation mechanism comprises a fixing support anda rotation support rotationally connected to the fixing support. The mechanical component is connected to the rotation support. The drive mechanism drives the rotation support so as to drive the mechanical component to rotate. The device can finish three technology operations including cleaning, liquid discharging and pressure testing on one station, the technology process is simplified, and theequipment and running expense is saved. For example, the mechanical component is in the rotation state during cleaning, possibility is provided for the two-phase flow cleaning technology, and the cleaning effect can be greatly improved.

The invention relates to a motor with good sealing performance. The motor comprises a motor body, a middle connecting plate and an end cover, wherein the middle connecting plate and the end cover areeach provided with a spigot to be connected with a machine barrel of the motor body, a groove is formed in the outer side of the root part of the spigot of each of the middle connecting plate and theend cover, and the grooves are used for mounting O-shaped rings; and barrel ports of the machine barrel are clamped on the outside of the O-shaped rings after the end cover and the middle connecting plate are mounted with the machine barrel, thereby achieving a sealing effect. The middle connecting plate and the end cover of the motor are optimized on the premise of maintaining the original motor,the grooves for placing the O-shaped rings are formed in the spigots connected with the machine barrel, the O-shaped rings are used for static sealing, and the overall waterproof performance of the motor can be effectively improved; and the O-shaped rings are cheap, simple to manufacture, reliable in function, simple in mounting requirements and convenient to replace.

The invention discloses a low-noise roller for a spinning machine drafting mechanism, and mainly relates to the technical field of textile machinery. A nylon ring sleeves the middle of a shaft, and the lower portion of a shaft sleeve is sleeved with the inner side of a bearing inner sleeve; the bearing inner sleeve is integrally nested in a bearing, the bearing is nested in an outer sleeve, and the two ends of the bearing abut against the outer sleeve and a first check ring respectively; a cushion is arranged between the bearing inner sleeve and the shaft sleeve, and the cushion comprises a foam plate and a damping material layer; a protection layer is arranged on the surface of the shaft and composed of an acid-base corrosion resistance layer, a high temperature resistance layer and a wear resistance layer; the surface of the outer sleeve is covered with a layer of high-hardness heat-resisting paint. The roller can perform enough compensation, the spinning quality is greatly guaranteed, the sealing property is good, safety and reliability are achieved, working noise is low, the service life is long, the application range is wide, and maintenance is conducted conveniently and rapidly.