41results about How to "Play the role of sealing protection" patented technology

The invention discloses a kidney disease hemodialysis monitoring and nursing device, which comprises a device body, the left side of the device body is fixedly connected with a bracket, the left end of the bracket is fixedly connected with a dialysis filter tank, and the top of the device body is fixedly connected with a Monitoring module, the right side of the device body is fixedly connected with a nursing device, the nursing device includes a support plate, the left side of the support plate is fixedly connected with the right side of the device body, and the upper surface of the support plate is fixedly connected with Two side plates, the upper surfaces of the two side plates are fixedly connected with support plates. The present invention, through the cooperative use of the above-mentioned structures, solves the problem that in actual use, it is difficult to care for the puncture on the patient's arm with the traditional hemodialysis monitoring device, and the arm receiving the puncture needs to be left still for a long time. state, it is easy to make the patient's arm produce discomfort such as numbness, which brings inconvenience to use.

The invention discloses a bus supporting construction. The construction comprises a bus cylinder, a bus conductor, an insulator and a fastening bolt, wherein the insulator is used for supporting the bus conductor and the fastening bolt is used for fixing the insulator. The bottom of the insulator is provided with at least an adjusting stud; the top of the adjusting stud supports the insulator; the bus cylinder is inserted through the bottom of the adjusting stud and the bottom of the adjusting stud is cooperated with screw threads of the bus cylinder; and an inserted outboard position at the bus cylinder is sealed by an outer cover. According to the bus supporting construction provided in the invention, a technical scheme of adjustment on a stud is employed; a height of an insulator can be adjusted outside a bus cylinder; therefore, supporting forces provided by the insulator can be maintained to be consistent and uniform support is obtained by a bus conductor; moreover, a local stress that is caused by nonuniform support is reduced and thus service life of a bus is improved; and the bus supporting construction is suitable for application to a high voltage class bus.

The present invention relates to a non vacuum high temperature solar selective absorbing coating composite anti-reflection coating and a preparation method thereof, wherein the method comprises the following steps: (1) preparing A1203 colloidal sol and Sn02 colloidal sol; (2) putting the sample into A1203 colloidal sol to form A1203 film via sol-gel dip-coating and heat treatment; after curing and polishing of the A1203 colloidal sol, doing sol-gel dip-coating for anther time, and keeping the A1203 colloidal sol unthickened and completely sealed; putting the sample plated with A1203 film into Sn02 colloidal sol to form Sn02 film via sol-gel dip-coating and heat treatment, and keeping the thickness of the Sn02 colloidal sol when doing sol-gel dip-coating for another time after polishing the surface with flannelette, whereby the composite anti-reflection coating is obtained. The present method has high infrared reflectivity, prolonged service life of the coating, and is suitable for medium-high temperature working environment. Additionally, the bi-layer thin film has simple preparation technology, easy controlling, short production cycle and convenient operation.

The invention discloses a fine adjustment device for the tunneling angle of a shield machine. When an angle controller of the fine adjustment device controls and adjusts the angle, the angle controller first adjusts the angle to a required angle by using a hydraulic cylinder, then in the tunneling process, a telescopic compensation assembly is responsible for compensating the displacement expansion-and-contraction value of the hydraulic cylinder caused by a tunneling force according to the real-time detection value of an angle detecting assembly, the tunneling precision can be greatly improved, and the adjustment efficiency of the tunneling angle is ensured. A splicing assembly method of four branch connecting blocks is adopted to realize the split type assembly effect of a tunneling plate, when scrapper blades on the tunneling plate are damaged, only scrapper blades on the branch connecting blocks at the corresponding positions are replaced while self-stability of the tunneling plateis ensured, and trouble brought by the overall replacement of the tunneling plate is avoided. The independent fine adjustment effect of the tunneling angle of the scrapper blades on the tunneling plate is realized, so that adjustment operation of the tunneling angle of the scrapper blades at different positions can be independently realized, and the tunneling angle of the scrapper blades is greatly improved.

The invention discloses a worm wheel type slewing bearing capable of achieving opposite rotational motion of internal and external teeth, and belongs to the technical field of slewing bearings. The worm wheel type slewing bearing capable of achieving opposite rotational motion of internal and external teeth comprises an outer ring, a middle ring and an inner ring. A roller way between the outer ring and the middle ring and a roller way between the inner ring and the middle ring are both provided with steel balls and isolation blocks. The outer ring gear teeth are machined on the outer ring. The inner ring gear teeth are machined on the inner ring. The outer ring gear teeth are in a worm wheel type, and the inner ring gear teeth are in a dual-diameter-pitch mode. Hyperbola sealing grooves are correspondingly machined in the combination face between the outer ring and the middle ring and the combination face between the middle ring and the inner ring respectively. A dual-lip sealing ring is installed inside each sealing groove. The slewing bearing can meet the requirement of the industries of entertainment machines, light industry machines, filling machines and the like for two-way rotational motion, and can bear the large turnover torque, the abrasion resistance of the gear teeth is remarkably improved, the installation between the sealing ring and the slewing bearing is firmer, the slewing bearing is not likely to fall down, and the service life of the slewing bearing is greatly prolonged.