64results about How to "Improve the anti-loosening effect" patented technology

The invention discloses a lock washer and the lock fastener component, wherein, the lock washer comprises a main body of the washer and a through hole arranged at the middle of the main body, wherein, a plurality of notches communicated with the through hole are distributed on the main body of the washer along radial direction by means of centrosymmetry; the edge of the main body of the washer at one side end of the communication part of each notch and the through hole is folded towards the surface end to form a raised locking part; the edge of the main body of the washer on the other side end is folded towards the internal end to form a raised locking part. The lock fastener component comprises a threaded fastener and the lock washer matched with the threaded fastener. The invention has the advantages of looseness prevention under high temperature and high-frequency vibration impact, better backward-resistant and locking effect, simpler processing technology, lower production cost, and repeated disassembly and application.

The invention discloses an anti-loosening and anti-electric-shock socket comprising a socket shell. The outer wall of the socket shell is provided with a mounting groove. The inner bottom of the mounting groove is symmetrically provided with two inserting grooves which are communicated with the internal part of the socket shell. A rotating plate is rotatably connected on inner bottom of the mounting groove through a torsion spring. The side wall of the rotating plate is provided with two symmetrically arranged jacks in a penetration way. The inner wall of one end of the socket shell away fromthe rotating plate is provided with an electric receiving device for electrifying. The inner wall of one end of the socket shell near the rotating plate is provided with a clamping device for preventing the connecting plug from loosening. The advantages are that the intensity of the induction magnetic field generated by the first coil is greatly enhanced through the insertion of the power receiving column, then the attraction force received by the limiting rod is increased, the limiting rod can overcome the elastic force of the return spring and slide into the clamping groove to realize the limiting of the power receiving column, the power receiving column is ensured not to loosen in the use process and the power receiving use process is ensured to be stably performed.

The invention discloses an axle-mounted brake disc device for a railway vehicle. The axle-mounted brake disc device comprises a disc body, a disc hub, a space ring and bolts, a connecting claw bolt hole is formed in each disc body connecting claw, bolt holes in a flange are flange step holes composed of flange small-diameter holes in the outer side and flange large-diameter holes in the inner side, the bolt holes in the space ring are space ring step holes composed of space ring small-diameter holes in the outer side and space ring large-diameter holes in the inner side, elastic pins are arranged in at least two of all the connecting claw bolt holes, the front ends of the elastic pins are inserted into the flange large-diameter holes, the rear ends of the elastic pins are inserted into thespace ring large-diameter holes, the elastic pins and the flange large-diameter holes are in interference fit, the connecting claw bolt holes and the space ring large-diameter holes are in interference fit, the diameters of inner holes of the elastic pins are less than the diameters of the flange small-diameter holes and the diameters of the space ring small-diameter holes, the bolts pass throughthe flange step holes, the connecting claw bolt holes and the space ring step holes, the tail parts of the bolts penetrate out of the space ring, and dished spring pieces and self-locking nuts are connected to the tail parts of the bolts. The axle-mounted brake disc device has a self-centering function when being assembled, and connecting loosening can be well prevented.

The invention relates to a lock washer for a screwed fitting and a preparation method thereof. The lock washer comprises an upper washer body and a lower washer body, a plurality of first ratchets which are distributed in a fan shape are arranged at the bottom of the upper washer body, a plurality of second ratchets which are matched with the first ratchets are arranged at the top of the lower washer body, the first ratchets are provided with wide surfaces attached to the second ratchets and narrow surfaces with the area smaller than that of the wide surfaces, the wide surfaces are helicoidalsurfaces formed by spiral movement of a generatrix for spacing an axis by taking the central axis of the washer body as the axis, the helix angle of a wire at the pitch diameter position of each helicoidal surface is larger than the helix angle of the screwed fitting, and the pitch diameter position of each helicoidal surface is the position, which is equal in distance away from the inner circumference as well as the outer circumference of the corresponding first ratchet, on the corresponding helicoidal surface. The lock washer has the advantage of being good in locking effect.

A safety increased type wiring base allowing rapid wiring comprises a wiring base outer casing, a first wiring assembly and a second wiring assembly; the first wiring assembly is used for connecting wiring of a lamp; the second wiring assembly comprises a button, a guide pillar, a flexible pressure block, a spring and a fixing block which are arranged inside a second empty chamber from top to bottom; a guiding groove is formed in the top of the guide pillar; the guide pillar is provided with a first through hole; a fourth empty chamber is formed in the bottom of the guide pillar; the first through hole is communicated with the fourth empty chamber; the button is arranged inside the guiding groove in a sliding mode; the flexible pressure block, the spring and the fixing block are arranged inside the fourth empty chamber of the guide pillar from top to bottom; the fixing block seals the fourth empty chamber of the guide pillar. The safety increased type wiring base allowing rapid wiring can achieve client rapid wiring and enables aspects such as the shock resistance, the loosening proof capability, the creep distance and the electric clearance to satisfy requirements for performance of safety increased type explosion proof electric appliances.

The invention provides a conical surface wedge-in locking fastener. The conical surface wedge-in locking fastener comprises a screw head, a screw rod and a nut, wherein the side wall of the screw rodcomprises at least one rectangular limiting edge, the screw rod is matched with an anti-rotation fixing cap matched with the screw rod, and a cylindrical cavity is formed in one end face of the fixingcap, and a conical ejecting head is arranged on one end face of the nut; and the radius of the minimum cross section corresponding to the outer side wall of the conical ejecting head is smaller thanthe radius of the cylindrical cavity, and the radius of the largest cross section corresponding to the outer side wall of the conical ejecting head is larger than the radius of the cylindrical cavity.When the conical surface wedge-in locking fastener is used, the side wall of the ejecting head tightly abuts against the inner wall of the cavity, the tight abutting force, on one hand, can applied force to the threads on the nut and the screw rod, the friction force among the threads is increased, on the other hand, the connection firmness of the nut and the fixing cap can be improved, and the double effect is achieved; compared with a clamping head and a groove structure in the prior art, the anti-loosening effect is better.

The invention relates to the technical field of flue gas desulfurization equipment, and especially relates to an improved assembling-fastening part for flue gas desulfurization equipment. The providedassembling-fastening part comprises a rectangular body-assembly connection board; a position, which is close to the right side of the lower end of the body-assembly connection board, is provided withan integrated rectangular assembling-fastening connection board; the central position (in the front-rear direction) of the right end face of the assembling-fastening connection board is provided withan integrated rectangular assembling-positioning-connecting stabilizing board; the front position and rear position of the left end face of the assembling-fastening connection board are both providedwith a cylindrical body fixing-locking connection hole; the upper end of the body-assembly connection board is provided with an integrated assembling-supporting connection seat; and the left side ofthe assembling-supporting connection seat is an arc surface. The provided improved assembling-fastening part has a reliable loosening-resistant effect and is capable of improving the connection stability during the using process, thus the function of flue gas desulfurization equipment is fully exerted, and the performance of the flue gas desulfurization equipment is more stable during the using process.

The invention discloses a combined down hole hammer sealing and anti-loosening structure. The structure includes a pore damping adjusting apparatus, a fitting, a pressure plate, a sealing gasket, a bolt, a spring gasket, a circular nut, an impactor upper joint, and a positioning taper sleeve. The impactor upper joint is locked to the positioning taper sleeve through the circular nut. The fitting is pressed against the impactor upper joint through the pressure plate, the sealing gasket, the bolt and the spring gasket. The fitting is also provided with the pore damping adjusting apparatus and can adjust the amount of air inflow. The impactor upper joint is in conical surface contact with the fitting and the positioning taper sleeve. Due to the pressing action of a pressure cover and the locking action of the circular nut, the contact surfaces of two pairs of conical surface undergo elastic deformation and are tightly bonded, which can generate greater friction. Therefore, the structure has sealing and anti-loosening functions.

The invention relates to loose preventing screw with build-in spring seizing sheet. It includes groove bolt and ejecting seizing nut. The former is set at least one groove. And the latter is set at least one ejecting seizing groove. After setting the spring seizing, its part is extended into the hollow part of the nut. And its screw outlet is set flute. The ejecting seizing nut is set unloading groove. Unloading machine includes seizing ring and protecting ring. It has the advantages of safe, simple structure, convenient manufacture, and repeating use.

The invention discloses a hydrophobic long-acting modified oil-coated organic fertilizer and a preparation method thereof. The hydrophobic long-acting modified oil-coated organic fertilizer is prepared from the following materials in parts by weight: n-hexane, epoxidation modifier, sesame dregs, cracklings, rape dregs, soy sauce residue, peat, fish bone powder, EM (effective microorganism) bacterium agent, diatomite, plant ash, cottonseed hull, duck feces, quartz grain, humic acid powder, ammonium molybdate, mulberry leaves and an appropriate amount of water. Crude grease is extracted from discarded material with high grease content, and is modified to be used as coating for organic matter, which can play a good role of preventing loosening, consequently, the hydrophobic long-acting modified oil-coated organic fertilizer can keep the shape of particles for a long time after being kept still, and does not absorb moisture when exposed in the air, and the hydrophobic long-acting modified oil-coated organic fertilizer is particularly suitable for crops with high water retention capacity, such as paddy rice, sugarcanes and water chestnuts.

The invention relates to a multifunctional bolt and belongs to fasteners. According to the technical scheme adopted by the invention, the special anti-skid bolt comprises a bolt head and a threaded rod; a threaded section is arranged at the front end of the threaded rod, and the end, close to the bolt head, of the threaded rod is an unthreaded section; an oiling groove is formed in a bolt body inthe axial direction from the bolt head; an opening of the oiling groove is located in the bolt head; the unthreaded section is provided with an oil outlet channel communicating with the oiling groove;a tightening cap is arranged on the portion, below the bolt head, of the threaded rod; the tightening cap is in a taper shape and stretches out towards the outer side of the threaded rod; in addition, wavy anti-skid teeth are arranged at the lower end of the fastening cap; a deformable bolt cap is arranged above the bolt head in a sleeving mode; and an anti-rust oil storage cavity is formed in the bolt cap, and anti-rust oil is stored in the anti-rust oil storage cavity. The special anti-skid bolt has the advantages of being reasonable in structure, good in functionality and good in anti-looseness effect and anti-rust effect.

The invention provides a combined nut capable of effectively preventing looseness. The combined nut comprises a first nut and a second nut which are engaged with each other; the first nut comprises afirst body part, an outer cylinder part and a reducing part connected in sequence; a continuous or discontinuous first bulge is formed in the circumferential direction on the outer surface of the outer cylinder part; the second nut comprises a second body part; a reducing hole and a cylindrical hole are sequentially formed in one end, matched with the first nut, of the second body part; a second bulge corresponding to the first bulge in position is arranged on the inner surface of the cylindrical hole; and a continuous or discontinuous device is arranged in the circumferential direction on thesecond bulge along the inner surface of the cylindrical hole. The combined nut capable of effectively preventing looseness, provided by the invention, is simple in structure, has a good looseness preventing effect, and can never loosen in the environments of vibration, impact and variable load.

The invention discloses a greenhouse plant illumination lamp. According to the lamp, a lamp holder comprises a fixed base, one end of a lamp base is fixedly installed in the fixed base, and the lamp holder can be fixedly connected with a greenhouse crossbeam; an inner connecting hole is formed in the lamp base and is sequentially provided with an electric connection head, an inner screw and a neckinternally; a fixed sleeve is arranged in the neck in a sleeved mode, buckled to the neck and internally provided with a step part; an inner reflector comprises an electric connection end, an outer thread electric connection part, a fixed part and a bulb, all of which are sequentially arranged; and the electric connection end is electrically connected with the electric connection head, the outerthread electric connection part is in thread fit with the inner screw, and the fixed part is buckled to the step part. The greenhouse plant illumination lamp is safe and reliable in use, resistant toan electric shock and long in service life; and the bulb has a good anti-loosening effect, light distribution of the bulb is effectively ensured, growing light effectively illuminates a plant requiredarea, plant growth is accelerated, energy consumption is low, and efficiency is high.

The invention discloses a liquid pump which at least comprises a pump body and a valve seat. The valve seat is installed at the lower end portion of the pump body, the pump body is an integral part integrally formed by the same material, the pump body comprises a shell with a hollow pump cavity and an elastic valve plate arranged at the bottom end portion of the shell, and the elastic valve plate is provided with a valve channel. The valve seat is arranged below the elastic valve plate in a matched mode, the valve seat comprises a valve body with a liquid flow channel, and the top of the valve body can be matched with the elastic valve plate in a sealed mode. The number of whole components of the liquid pump is small, the production cost is saved, product assembly is more convenient, product durability is high, and meanwhile all components in the liquid pump are basically made of recoverable plastics and can be fully recycled.

The invention relates to the technical field of sensor detection equipment, and particularly relates to an improved sliding sensor detection connecting frame. The technical scheme adopted by the invention is that the improved sliding sensor detection connecting frame comprises a rectangular main body stabilization assembly connecting frame, wherein the upper end of the main body stabilization assembly connecting frame is provided with an integrally molded rectangular fixing and locking connecting column, the front of the main body stabilization assembly connecting frame is provided with an all-pass central placement stabilization connecting groove, the width of the lower end of the central placement stabilization connecting groove is greater than the width of the upper end, the front of the fixing and locking connecting column is provided with a rectangular assembly connection cutting groove, and the assembly connection cutting groove is communicated with the central placement stabilization connecting groove. The invention has the advantages that the connecting frame is assembled through sliding assembly anti-loosening grooves when being connected with an assembly guide rail, a reliable anti-loosening effect is ensured in the using process, and the overall safety in the detection process is enabled to be higher.