54results about How to "Play a role of sealing protection" patented technology

The invention relates to the technical field of precision or ultra-precision machining, provides a supersonic vibration machining device and mainly consists of a supersonic vibration unit, a shell and a tool. Two node positions of the supersonic vibration unit are fastened by the shell of a shrink ring structure; the length of the shell is very easy to adjust, and an inner annular boss of the shell is fastened at the node positions of the supersonic vibration unit all along. The working frequency of the device is 38+ / -0.5KHz, so that noise pollution cannot be produced; the machining efficiency is high; moreover, assembly links of the device are few, and a blade is convenient to install and uninstall; meanwhile, the device is high in rigidity and good in airtightness. The device provided by the invention has a remarkable effect in the aspects of machining of materials which are hard to machine and cutting of low-rigidity parts, such as slender axles, thin-walled workpieces and the like; a cutting force, the cutting temperature, tool wear and the material cutting deformation of workpeices can be obviously reduced; the quality of finished surfaces and the accuracy of forms and positions of the workpieces are improved; subsequent processes are reduced, and further, the machining efficiency and the economical efficiency are improved.

The invention provides an anti-shake interface device for a high-speed rail data transmission cable. The device comprises an upper cover plate, a lower cover plate and a cable joint, and is characterized in that the lower cover plate is clamped at the lower end of the upper cover plate, the cable joint is clamped and fixed between the upper cover plate and the lower cover plate, and the cable joint is formed by mutually clamping a cable male joint and a cable female joint; a hollow circular groove is formed in the center of the bottom of the upper cover plate, a clamping and pressing device isclamped in the hollow position in the hollow circular groove, third grooves are formed in the left side and the right side of the center of the bottom of the upper cover plate, and first inserting rods are vertically and fixedly connected to the left end and the right end of the front side and the rear side of the bottom of the upper cover plate; first insertion holes are arranged at the left andright ends of the front and back sides of the top of the lower cover plate, a first groove is formed in the center of the top of the lower cover plate, and a supporting device is installed in the first groove. The invention provides the anti-shake interface device for the high-speed rail data transmission cable, and aims to solve the problems that the data transmission cable is easy to loosen, the stabilizing effect in the prior art is poor, and the cable is easy to wear and break off during shaking.

The invention belongs to the technical field of building, and relates to an upper-screwing lower-locking automatic insertion rod adjustable connection component. The upper-screwing lower-locking automatic insertion rod adjustable connection component comprises an upper connection rod and a lower connection rod, wherein the end part of the upper connection rod is provided with an upper connection cavity, and the end part of the lower connection rod is provided with a lower connection cavity; the upper connection cavity and the lower connection cavity are separately internally provided with inner threads; the upper connection rod is internally connected with a connection rod through threads; the lower connection rod is internally connected with a clamping mechanism through threads; the outer wall of the insertion rod is provided with a tooth ring which is integrally moulded with the insertion rod; when the insertion rod is inserted into the clamping mechanism, the position of the end part of the insertion rod in the clamping mechanism can be adjusted by rotating the tooth ring, so that the insertion rod is in clamping match with the clamping mechanism; and a gear ring is connected with the insertion rod through threads, and the gear ring can approach the lower connection rod and be tightly pressed against the end part of the lower connection rod by rotating the gear ring. By adopting the upper-screwing lower-locking automatic insertion rod adjustable connection component, connection can be conveniently performed through mechanical operation; and the connection distance is adjustable, so that dual effects of uplifting resistance and pressing resistance can be achieved, and connection is firm and reliable.

The invention discloses a VR technology-based teaching experience device and an experience system thereof. The VR technology-based teaching experience device comprises a VR helmet body and a mobile phone clamping mechanism arranged at the rear side of the VR helmet body, wherein the left side and the right side of the mobile phone clamping mechanism are symmetrically provided with two clamping mechanisms; two ends of the front side of the VR helmet body are symmetrically provided with stretching clamping seats; the middle of the stretching clamping seat is horizontally provided with a stretching connector; the front end of the stretching connector is connected with an arc elastic piece; the front ends of the two arc elastic pieces are connected through an arc protection plate; and an arch-shaped support plate is arranged between the top end of the arc protection plate and the VR helmet body. The experience system comprises a mobile terminal, an information acquisition terminal, a fixing terminal and an information output terminal. Various types of mobile phones can be quickly clamped and fixed, shaking during the use process is avoided, the mobile phone clamping mechanism can be quickly returned when the mobile phone is taken out, a certain sealing protection role is played, quick adaptive adjustment can be carried out according to the personal condition of a user when the userwears the device, and the use needs of the user are met.

The invention discloses a surface derusting processor for disc-like metal castings, which belongs to the technical field of casting derusting. A surface derusting processor for disc-like metal castings can be up and down and left and right through a pair of casting positioning mechanisms. The moving grinding roller is used together. After positioning the disc castings, according to the different surfaces of the castings to be processed, the horizontal and vertical positions of the grinding rollers are adjusted to be suitable for targeted treatment of the plane and convex surfaces of the castings. , effectively improve the processing flexibility of the device, and by adding a pushable oil seal mechanism in the casting positioning mechanism, the oil seal mechanism can realize the penetration of liquid grease into the oil seal sponge under the push of the oil filling piston, and the oil seal sponge and the outer end wall of the casting form a At this time, the oil-sealed sponge with a certain amount of oil effectively improves the tightness of the attachment to the outside of the casting, and on the other hand, it also effectively protects the casting when it is clamped.

The invention discloses a single-wall heat-shrinkable tube. The tube comprises the following components in parts by weight: 30-50 parts of ethylene vinyl acetate copolymer with melt index of 1-5g / 10min, 10-20 parts of ethylene vinyl acetate copolymer with melt index of 10-20g / 10min, 5-15 parts of ethylene vinyl acetate copolymer with melt index of 20-40g / 10min, 20-40 parts of an environment-friendly fire retardant, 1-5 parts of a thickening agent, 0.2-2 parts of a lubricating agent, 2-4 parts of a colorant and 0.5-1 part of an antioxidant. According to the tube, EVA with different melt indexes is taken as main substrates and an environment-friendly fire retardant is added, so that the single-wall heat-shrinkable tube has flame retardant property and can alleviate pollution to the environment. Besides, the thickening agent is added, so that the single-wall heat-shrinkable tube has excellent sealing property; through the processing technical control, the partial crosslinking of a semi-finished product after being radiated can be guaranteed; a layer of un-crosslinked area is maintained on the inner wall, so that the sealing protection function is achieved; the use performance and application scope of the single-wall heat-shrinkable tube can be obviously increased.

The invention provides a lightweight hoisting dome structure comprising a power supply box, a fixed base and a standing column. The standing column is installed on the fixed base by a bolt. The powersupply box is installed at the top of the standing column by a bolt. A sealing cover is installed on the power supply box movably by a hinge. Connecting blocks distributed uniformly are welded to thesurface of the power supply box; connection holes are formed in the surface of the connecting blocks; and support rods are installed movably at the connecting blocks by hinging shafts. A cylinder is installed inside the fixed base by a bolt; and a telescopic rod is installed at the output end of the cylinder. According to the invention, on the basis of a series of structures, manpower and materialresources are saved; the construction and dismounting become convenient and rapid; the weight is light; and the stability and safety are high.

The invention discloses a printing machine stable in paper winding. The printing machine comprises a machine base (1), wherein a workbench (2) is arranged on the machine base (1); paper winding units (3) are arranged at the two sides of the workbench (2); the two ends of the two paper winding units (3) are respectively connected with cantilevers (4) and support units (5); drive motors (6), driving wheels (7), driving belts (8) and driven wheels (9) are arranged on the cantilevers (4); the driven wheels (9) are connected with the paper winding units (3); the support units (5) comprise support frames (51); support shafts (52) are arranged at one sides of the support frames (51); extension bases (53) are arranged at the bottoms of the support frames (51); one ends of the extension bases (53) are connected with bolts (54); mounting bases (10) are arranged at the two sides of the workbench (2); waist-shaped holes (11) are formed in the mounting bases (10). The printing machine can achieve the effect of improving the paper winding stability, is convenient to use and also has the advantage of wide range of application.

The invention discloses a solar cell encapsulation frame, belonging to the technical field of solar cells, comprising a frame body, a sealing mechanism is arranged inside the frame body, a laminate is arranged in the frame body through the sealing mechanism, and a junction box is arranged at one end of the laminate. One end of the frame main body is provided with a sealing plate through the sealing mechanism, the sealing plate is fixedly connected with the frame main body through the connecting component, the frame main body, the laminated plate and the sealing plate form a sealing cavity through the sealing mechanism, and the sealing cavity is filled with sealing liquid. Compared with the prior art, the beneficial effect of the present invention is that the structure of the present invention is simple, and the installation is convenient, and the problem that the sealability of the sealing chamber cannot be detected after the seal failure is solved by using the sealing liquid in the sealing frame, and the laminated board is sealed by the sealing liquid It plays a certain role of sealing and protection. At the same time, the integral frame body is used to ensure the strength of the solar cell. The installation process is relatively simple, and the technical requirements for installation are relatively low.

The invention discloses a dust-reducing and environment-friendly concrete aggregate mixing device and a method for using the same, which belong to the technical field of concrete processing and can be equipped with a special dust-proof linkage component and a material transporting component. Fill the aggregate into the hopper, then put the dust cover on the outside of the hopper, and control the start of feeding by pulling the handle ring on the outside of the dust cover, so that when feeding into the mixing box , the dust cover can play a role of sealing protection, effectively prevent dust from overflowing, and then effectively prevent dust from polluting the environment and endangering the health of workers, significantly improving environmental protection performance and practicability, and can effectively avoid aggregate Friction and collision with the inner wall of the feed pipe can significantly reduce the generation of dust, and through the settings of the water tank, micro-water pump, atomizing nozzle, and power supply components, the dust generated when loading aggregates into the hopper can be significantly reduced .

A processing method for an ultrathin multi-layer printed circuit board comprises the following steps of firstly, simultaneously laminating and pressing an ultrathin carrier copper foil and a carrier prepreg to form a detachable multi-layer structure circuit bard having a carrier structure, attaching and fixing the ultrathin copper foil onto the carrier structure by gummosis of carrier prepreg resin to form an unified integral structure, determining an alignment system by a positioning hole in the ultrathin carrier copper foil for subsequent flow process, and separating processing boards from the ultrathin copper foil and the carrier copper foil by edge milling and plate disassembly operation when the thicknesses of the processing boards are larger than or equal to 0.06 millimeters, thereby obtaining two completely same processing circuit boards; and finally, respectively processing the two processing boards by a conventional process flow until the fabrication of a required circuit or package substrate is completed. By the processing method, the cost can be substantially reduced, and the production efficiency and the product yield are improved.

The invention provides a lightweight hoisting dome structure comprising a power supply box, a fixed base and a standing column. The standing column is installed on the fixed base by a bolt. The powersupply box is installed at the top of the standing column by a bolt. A sealing cover is installed on the power supply box movably by a hinge. Connecting blocks distributed uniformly are welded to thesurface of the power supply box; connection holes are formed in the surface of the connecting blocks; and support rods are installed movably at the connecting blocks by hinging shafts. A cylinder is installed inside the fixed base by a bolt; and a telescopic rod is installed at the output end of the cylinder. According to the invention, on the basis of a series of structures, manpower and materialresources are saved; the construction and dismounting become convenient and rapid; the weight is light; and the stability and safety are high.

The invention relates to the technical field of connectors, and particularly relates to a wire end multi-core waterproof connector which comprises a shell, a front end sealing assembly arranged on the shell, a terminal assembly arranged in the shell, a rear end sealing assembly arranged on the shell and connected to the terminal assembly, and a lock catch assembly arranged on the shell. The shell is provided with an insertion cavity and an insertion fixing cavity, the insertion fixing cavity extends to the insertion cavity, the front end sealing assembly is arranged in the insertion fixing cavity in a sleeving manner, the terminal assembly is arranged in the insertion fixing cavity, and the rear end sealing assembly is arranged in the insertion fixing cavity and is far away from the front end sealing assembly. The front end sealing assembly and the rear end sealing assembly are arranged at the front end and the rear end of the terminal assembly of the connecting cavity respectively, the front end sealing assembly and the rear end sealing assembly play a role in sealing the front end and the rear end in the plug-in use process of the connector, then the plug-in and sealing effects of the connector are enhanced, the sealing effect and the waterproof effect are good, and the service life is prolonged.

The invention discloses a multifunctional well head device. The multifunctional well head device is mainly composed of a gland, a pressing ring, a three-section conical slip and a slip bowl. An inner thread is designed at the lower portion of the gland and matched with an outer thread of the slip bowl. A through hole is designed in the upper portion of the gland. The outer surface of the three-section conical slip is in conical design and is matched with an inner conical hole of the slip bowl. The pressing ring is arranged between the gland and the three-section conical slip. The multifunctional well head device is fixed to a well head casing pipe column. On the basis of one set of device, well head height adjustment, oil pipe centralizing and oil pumping pipe column hanging functions can be achieved only by replacing conical slips of different specifications, and a plurality of problems existing in well repairing work are solved. Using is convenient, the work efficiency and the well repairing quality are improved, and safety of the well repairing work process is guaranteed. The problem that no special well head devices exist for the well repairing work for a long time is solved, the multifunctional well head device can serve as standard configuration for a well head during well repairing work, and the positive promoting function is achieved for improving the standardization of the well repairing work.