14results about How to "Elastic stability" patented technology

This utility model belongs to the field of mold fixing technology, and in particular to a rapid fixing structure for a concrete permeability testing instrument mold. It includes a mold body and an annular plate fixedly welded to the upper and lower peripheries of the mold body. A connecting frame is sleeved around the lower annular plate, and a rapid fixing structure connects the annular plate and the connecting frame. The rapid fixing structure includes a groove on the upper surface of the connecting frame and fixing plates fixedly installed on the surfaces of both ends of the annular plate. Through the design of this rapid fixing structure, the operator only needs to move the sliding plate to insert or remove the limiting rod from the limiting hole to quickly fix or disassemble the mold body and the connecting frame. The entire process requires no complex tools or cumbersome operating steps, greatly shortening the mold assembly and disassembly time, significantly improving the efficiency of the testing work, and enabling testing personnel to complete the testing of multiple samples more quickly, meeting the needs of large-scale testing tasks.

This invention relates to the field of polymer materials technology, and discloses a high-elasticity rubber-plastic insulated cable composite material and its preparation method. The high-elasticity rubber-plastic insulation material comprises, by weight, 40-50 parts of EPDM rubber, 20-25 parts of polyolefin elastomer, 30-35 parts of modified calcined kaolin, 3-5 parts of composite antioxidant, 2-3 parts of silane coupling agent, and 1.5-2 parts of vulcanizing agent. During preparation, EPDM rubber and polyolefin elastomer are kneaded for 5-8 minutes, then modified calcined kaolin and silane coupling agent are added and kneaded for another 8-12 minutes, followed by the addition of composite antioxidant and vulcanizing agent and kneading for 3-5 minutes. Finally, the mixture is vulcanized in stages. The first stage vulcanization temperature is 155-160℃, and the second stage vulcanization temperature is 165-170℃. The insulating material prepared by this invention has excellent elasticity, outstanding resistance to flexural fatigue, stable insulation performance, high volume resistivity, excellent aging resistance, and tight interfacial bonding. It is suitable for use in high-voltage cable insulation layers, effectively extending the service life and stability of the cable.

This invention discloses a ground shielding layer construction process for a multi-condition simulation test platform for power transmission and transformation equipment, belonging to the field of power transmission and transformation. The construction process is based on a ground shielding layer construction device, including a foundation and a steel mesh. A trench is excavated in the foundation, and the steel mesh is installed within the trench. A ground frame assembly is also included, located within the trench. The ground frame assembly includes a transition frame, a positioning structure, and a bottom frame. The bottom frame is located on the bottom wall of the trench, and the steel mesh is laid on the bottom frame. The transition frame is located on the inner side wall of the trench. The positioning structure is located at the connection between the transition frame and the bottom frame. The four sides of the steel mesh are embedded in the grooves on the four sides of the bottom frame, and the positioning structure is used to position the steel mesh. This invention has the advantage of using the positioning structure to embed the four sides of the ground shielding layer composed of multiple steel meshes into the grooves on the four sides of the bottom frame for rapid installation, avoiding multiple welding positioning points.

The utility model relates to rubber support technical field discloses a rubber support under the working condition of offshore drilling platform, including composite rubber body and the steel bottom plate of setting at the bottom of composite rubber body, the stainless steel framework is alternately overlapped and arranged in the composite rubber body, the stainless steel framework is overlapped and is composed by a plurality of thin steel sheets, the stainless steel framework is formed 10um ceramic membrane through micro -arc oxidation treatment, and fills the nanometer sealing agent in ceramic membrane, the composite rubber body includes the surface layer, the middle layer and the core layer that set up in proper order, the surface layer is made of hydrogenated nitrile rubber, the middle layer is made of fluorine rubber, and is connected through vulcanization bond with the surface layer, the core layer is made of high damping natural rubber, is closely combined with the middle layer through hot vulcanization process, and the whole forms co -vulcanization integrated structure.

The utility model provides a bovine serum multi-level filtering device, and relates to the field of bovine serum filtering, the bovine serum multi-level filtering device comprises a box body, a rotating cylinder is arranged in the box body, at least one mounting ring is arranged in the rotating cylinder, a fixing plate is arranged in the mounting ring, an annular filter plate is arranged between the fixing plate and the mounting ring, and the annular filter plate is arranged in the box body. The annular filter plate is embedded in the mounting ring, and two assembly rods are arranged outside the mounting ring. Through cooperation of the fixed rods, the fixed rings, the arc-shaped protrusions, the rolling balls, the rectangular blocks, the rectangular grooves and other structures, in the rotating process of the rotating drum, the static arc-shaped protrusions make contact with the rolling balls, the mounting ring is driven to periodically ascend and descend in the vertical direction, and the rotating drum is driven to rotate. The continuous and automatic axial vibration of the annular filter plate in the filtering process is realized, and the vibration in the vertical direction can generate effective axial stripping force on particles and viscous substances embedded into pores of the filter screen, so that the blockage of the filter pores is obviously reduced.

The utility model discloses an anastomat and an anastomosis nail pushing mechanism thereof, and relates to the medical technical field, the anastomat comprises a shell, one side of the shell is provided with a handle, one end of the handle is fixedly connected with a nail anvil, one side of the top of the handle is provided with a locking mechanism, and the inner side of one end of the handle is inserted with a nail bin. Through cooperation of an elastic piece and a clamping block, the nail bin can be rapidly inserted and preliminarily fixed, basic guarantee is provided for follow-up operation, a first moving plate stably moves along a sliding groove, elastic tension storage and stable movement of the device are ensured through the combination of the action of a second fixing rod and a second tension spring, and in the reset process, through cooperation of an inserting rod and a positioning hole, the device is reset stably. Final firm inserting connection is achieved, the stability of the nail bin is greatly improved through the double-locking function of the clamping block, disassembly and replacement are more convenient and faster through the modular design, the requirements for efficient and flexible operation are met, and the reliability of the device is enhanced through the overall structure.

The utility model provides a semiconductor material deformation monitoring device, which relates to the technical field of semiconductor production, and comprises a tank body and a sound wave detection head, the inside of the tank body is fixedly connected with an overturning detection assembly, the top end of the overturning detection assembly is fixedly connected with a pressure assembly, and the top end of the tank body is fixedly connected with a feeding assembly. The overturning detection assembly comprises a motor and a connecting plate, the outer side of the motor is fixedly connected to the tank body, the driving end of the motor is fixedly connected with a top cover, the bottom end of the top cover is fixedly connected with a guide plate, and one end of the connecting plate is fixedly connected with a guide sliding column; the innovative design concept enables detection and analysis of the semiconductor material to be more flexible and comprehensive, careful observation can be performed from multiple angles, and researchers can accurately monitor the deformation process of the material, so that behaviors and characteristics of the material under different conditions can be better known, and the detection accuracy of the semiconductor material is improved. Therefore, the rupture of the thin film caused by uneven stress generated in the temperature change process is effectively avoided.

The application discloses a circuit board for an automatic medical injector and a production process thereof, and particularly relates to the technical field of circuit board manufacturing. The circuit board for the automatic medical injector adopts an elastic bending-resistant substrate as a substrate, selects elastic metal as a raw material, adds polyether in synthetic fibers, has good mechanical physical properties and good temperature resistance, and adds plasticizers and organic silicon as an auxiliary. The circuit board has high and low temperature resistance, electrical insulation, oxidation resistance stability, and a reinforcing layer as metal rubber. The structure is stable, and the elastic bending-resistant substrate has good elasticity, toughness and bending resistance. The use of transparent film coating and protective film double-protects the upper surface of the circuit board body, has good protection effect, avoids the phenomenon that the surface of the elastic bending-resistant substrate is damaged due to damage of the transparent film coating, improves the structure of the circuit board body, and improves the safety function of the circuit board body.

The invention discloses a method for processing a flat spiral wave spring, which comprises the following steps: a rounding adjusting mechanism comprises a rounding channel and an adjusting piece, and the adjusting piece controls the rounding radius, so that a raw material is processed into a spiral wave structure; the wave-shaped forming mechanism comprises a first driving source and a forming part, and the forming part is used for forming wave crests and wave troughs of the scroll wave-shaped structure; the cutting mechanism comprises a cutting knife, and the cutting knife is used for cutting; and the control mechanism controls the circle forming adjusting mechanism, the wave-shaped forming mechanism and the cutting mechanism through an algorithm. The flat spiral wave spring comprises a starting end and a terminating end, the radius of the starting end is not equal to that of the terminating end, the number of turns of the flat spiral wave spring is at least one, and wave crests or wave troughs corresponding to two adjacent turns of the flat spiral wave spring are located in the same radial direction; the flat spiral wave spring is high in material rigidity and uniform in forming stress distribution, and is mainly used for use scenes with small axial space, large radial space, high rigidity, small stroke and large axial force.

The utility model relates to a small overflow valve which is mainly composed of a valve body, a diaphragm and an elastic reset piece, a valve plate, a pressure cavity and a medium circulation cavity are arranged in the valve body, and a valve port on the valve plate is communicated with a water inlet channel and a water outlet channel in the medium circulation cavity; the deformable diaphragm is located above the valve plate and divides the pressure cavity and the medium circulation cavity, and opening and closing of the valve port are achieved through fluid pressure of the water inlet channel. The elastic reset piece provides downward driving force for the diaphragm, and it is ensured that the valve port is closed. The overflow valve is characterized in that a valve stand is of an annular stand structure on the valve plate, the upper surface of the valve stand is flat and is provided with an arc-shaped convex ring, and the periphery of the convex ring is smaller than the valve stand to form a step. According to the design, the convex ring on the periphery of the valve port is changed into the arc shape, and compared with a traditional conical structure, fluid can be guided more smoothly, pressure transmission is uniform, fluid flowing resistance and energy loss are effectively reduced, the reaction sensitivity of the valve is greatly improved, and the valve port is opened and closed rapidly through the diaphragm.

This utility model discloses a miniature semi-automatic chip testing platform, including a support base plate on which a PCB board and a chip testing socket are mounted. The chip testing socket has a chip slot for testing the chip to be tested. A support frame is provided on the support base plate, and the support frame includes a transition horizontal plate parallel to the support base plate. A chip pressure pin is mounted on the transition horizontal plate. The chip pressure pin is driven to move up and down by a first lead screw motor or a pressure plate linkage mechanism, and the bottom of the chip pressure pin corresponds to the chip slot. This utility model can ensure a stable chip testing environment, improve testing speed, enhance the adaptability of the testing socket, and save testing time.

The utility model belongs to the technical field of electric picks, and discloses an engine oil electric pick structure capable of precisely controlling oil mass, which comprises a gear box and an oil tank, a front cylinder is fixedly mounted at one end of the gear box, a working head is arranged at one end of the front cylinder far away from the gear box, and a transmission component for driving the working head to operate is arranged in the gear box. The oil tank is fixedly embedded in the gearbox, an oil adding mechanism is arranged at the bottom of the oil tank, and the transmission assembly can periodically control opening and closing of the oil adding mechanism during operation, so that engine oil in the oil tank is quantitatively added into the gearbox. Opening and closing of the oil adding mechanism are periodically controlled through the transmission assembly, quantitative adding of engine oil is achieved, the use amount of the engine oil is accurately controlled, engine oil waste is avoided, the manual engine oil adding frequency is reduced, and the use cost is reduced.

The utility model relates to the technical field of cable manufacturing equipment, in particular to an automatic guide assembly of a cabling machine, which comprises a base, a connecting frame and the like, a driving assembly for cabling is mounted at the rear end of the base, a fixing frame is connected to the front end of the base, and electric sliding rails which are vertically symmetrical are mounted on the left side of the fixing frame; one end of the connecting frame is slidably connected into the electric sliding rail, the electric sliding rail drives the connecting frame to move up and down, the other end of the connecting frame is connected with an installation outer frame, the upper end and the lower end in the installation outer frame are slidably connected with contact plates, and pressure sensors are installed on the contact plates extruding a cable and are in extrusion fit with the inner side of the installation outer frame. The fixing frame and the installation outer frame are jointly connected with an elastic assembly, and the contact plate is provided with a protection assembly used for making contact with a cable. The air spring is adopted to replace a traditional torsion spring to provide elastic support, the air pump is matched with the three-way valve, air can be supplemented or pressure can be adjusted in real time, stable elastic performance is ensured, and therefore the service life of the whole device is prolonged.