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35results about How to "Guaranteed anti-loose performance" patented technology

Locknut, locking mechanism and locking assembly

The invention provides a locknut, and relates to the technical field of mechanical anti-loose devices. The locknut comprises a first nut and a second nut; the first nut and the second nut are simultaneously fastened on the same bolt; one of the contact faces of the first nut and the second nut is an inclined plane; the horizontal end faces of the nuts abut against external workpieces; when the first nut and the second nut are coaxially arranged and abutted to each other, a gap with the angle is formed between the first nut and the second nut, the second nut continues to be twisted towards thedirection of the first nut, the eccentric magnitude is generated between the first nut and the second nut as the gap becomes smaller, and the eccentric magnitude is increased as the vibration force ofthe external workpieces increases, so that the loosening of the locknut is prevented. On the basis of ensuring the anti-loose effect, the locknut has simple processing process, low requirements on materials and tooling, and low processing cost, and the locknut is not affected by metal ductility and fatigue, and is more suitable for the needs of consumers.
Owner:毕书鹏

Anti-loosening gasket

The invention relates to an anti-loosening gasket. The anti-loosening gasket comprises an upper gasket body and a lower gasket body which are used cooperatively; the upper gasket body is of an upper annular gasket structure, the front face of the upper annular gasket structure is provided with a plurality of forward rotating type upper locking grooves which are uniformly and sequentially formed inthe circumferential direction of the upper annular gasket, and the back face of the upper annular gasket structure is provided with a plurality of reverse rotating type upper locking teeth; the lowergasket body is of a lower annular gasket structure, the front face of the lower annular gasket structure is provided with a plurality of reverse rotating type lower locking grooves which are uniformly and sequentially formed in the circumferential direction of the lower annular gasket, and the back face of the lower annular gasket structure is provided with a plurality of forward rotating type lower locking teeth; the back face of the upper gasket body and the back face of the lower gasket body are locked through the upper locking teeth and the lower locking teeth. The anti-loosening gasket is good in reliability, through engagement of the upper locking teeth and the lower locking teeth as well as arrangement of the upper locking grooves and the lower locking grooves, the anti-loosening effect of the upper gasket body and the lower gasket body is effectively ensured, and the effect that the anti-loosening gasket is reliably connected with other gaskets, and the upper gasket body and the lower gasket body are reliably connected is ensured.
Owner:苏州锐德飞自动化设备有限公司

Self-locking fastening set

The invention provides a self-locking fastening set which mainly solves the problem that in the prior art, a fastener is likely to get loose in the vibration environment and consequently connection looseness is caused. The self-locking fastening set comprises a bolt, an inner nut and an outer nut, wherein the outer nut is provided with a fastener locked to the lower end face of the inner nut, the outer nut is sequentially provided with a first hole, a second hole and a threaded hole from top to bottom, the fastener is arranged in the second hole, a thread column is arranged in the threaded hole, and a spiral spring is arranged between the thread column and the fastener; the thread column is rotated, so that the upper end of the fastener stretches out of the first hole and is locked to the lower end face of the inner nut in a tightly attached mode, and the outer nut is effectively prevented from getting loose, and the anti-looseness effect is improved; in combination with an accompanying drawing, optimization modes for two kinds of fasteners including steel balls and stepped cylinders are detailed. The self-locking fastening set is simple in structure, can effectively prevent the outer nut from getting loose and provides reliable fastening connection.
Owner:RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1

Anti-loosening bolt assembly

PendingCN110905903AReduce the likelihood of self-loosingIncrease frictionNutsBoltsClassical mechanicsFriction force
The invention discloses a anti-loosening bolt assembly. The bolt assembly comprises an anti-loosening bolt, an anti-loosening gasket, a fastening nut and an anti-loosening fastener, wherein the anti-loosening bolt further comprises a bolt head, a boss, a stud and an external thread, the boss is arranged at the bottom of the screw head, the stud is arranged in the center of the bottom of the boss,the external thread is arranged on the stud, the anti-loosening gasket, the fastening nut and the anti-loosening fastener are sequentially arranged on an outer side of the stud from top to bottom, a through hole corresponding to the stud in size is formed in the center of the anti-loosening gasket and the center of the fastening nut, and an internal thread is arranged on an inner wall of the fastening nut through hole. Compared with the prior art, the bolt assembly is advantaged in that the bolt assembly is simple in structure, reasonable in design, and can effectively increase friction forcebetween the fastener and the connecting piece, absorb vibration impact, guarantee long-term stability of connection and have excellent anti-loosening performance.
Owner:海盐大宁紧固件股份有限公司

Bolt stopping part and stopping method

The invention discloses a bolt stopping part and a stopping method, and relates to the technical field of fastening parts. The stopping part comprises a stopping gasket with bolt holes, the stopping gasket is further provided with stopping holes used for allowing the corners of bolt heads to be arranged in a sleeved mode, the stopping holes are located between the bolt holes and the gasket corners, close to the bolt holes, of the stopping gasket, the gasket corners are folded upwards, the hole edges of the stopping holes are closely attached to the bolt heads, the gasket corners are pressed onthe upper end faces of the bolt heads, and then stopping is achieved. According to the bolt stopping part and the stopping method, the problem that the bolt loosening preventing effect of an existingbolt stopping part is poor is solved.
Owner:LIUZHOU IRON & STEEL

Anti-loosening bolt

The invention discloses an anti-loosening bolt, and relates to the technical field of bolts. The anti-loosening bolt comprises a screw rod and a nut. The anti-loosening bolt further comprises an anti-loosening piece which is assembled on the screw rod and inserted with the nut and used for abutting against the nut when the nut is loosened so as to avoid the loosening phenomenon. The side, close tothe anti-loosening piece, of the nut is provided with a slot, and the side, far away from the anti-loosening piece, of the nut is provided with a threaded part matched with the screw rod. The side, close to the slot, of the anti-loosening piece is provided with an inserting part, the inserting part is used for inserted into the slot for assembling, and the side, far away from the inserting part,of the anti-loosening piece is provided with a rotating head used for screwing the anti-loosening piece. Due to the adoption of the anti-loosening bolt of the technical scheme, through the arranged anti-loosening piece, when the nut is loosened, the nut is extruded to one side of the screw rod to enable the inner wall of the nut to abut against the screw rod, so that the nut moves more and more tightly, and the anti-loosening bolt has the advantages of being simple in structure, ingenious in design, convenient to disassemble and assemble and good in anti-loosening effect.
Owner:曲伟

Anti-loosening nut capable of realizing function of higher tightness during stronger vibration

PendingCN111456996ARealize the function of vibrating and tighteningLocking force does not attenuateNutsBoltsRatchetScrew thread
The invention discloses an anti-loosening nut capable of realizing a function of higher tightness during stronger vibration. The anti-loosening nut comprises a flange nut and a concave nut, wherein the flange nut and the concave nut are tightened to a bolt in an overlapped mode and locked by tightening pieces, a concave nut main body is a hexagonal head nut with a flange, and an internal thread tapping alignment mark A is arranged on the side surface of the concave nut, and a concave structure, an anti-loosening wedge-shaped surface A and a tightening in-place chamfer mark A are arranged on the same end surface of the concave nut main body; and a flange nut main body is a hexagon head nut, an internal thread tapping alignment mark B is arranged on the side surface of the flange nut main body, and a flange structure, an anti-loosening wedge-shaped surface B and a tightening in-place chamfer mark B are arranged on the same end surface of the flange nut main body. According to the anti-loosening nut, when a concave nut and flange nut assembly piece of the anti-loosening nut is tightened to the bolt and the tightening pieces, the structures such as an anti-loosening wedge-shaped structure, a tenon and mortise joint structure with the flange matched with a concave shape, ratchet wheel structures, and an asynchronous internal screw thread and bolt screw thread structure of the anti-loosening nut act together, and under the conditions such as strong or long-term vibration, the higher tightness can be achieved during the stronger vibration (commonly known as never loosening), and the anti-loosening function of the anti-loosening nut is still reliable and effective in a severe environment.
Owner:王彦淞

Check bolt assembly

PendingCN111503121AReduce the likelihood of mutual separationReduce loosenessWashersNutsWasherScrew thread
The invention discloses a check bolt assembly which comprises a bolt, a nut, a first check washer and a second check washer. A step segment, a thread segment and an open groove are sequentially arranged on a stud of the bolt from top to bottom. A nut is arranged on the thread segment. The first check washer is arranged on the step segment. A blind hole extending upwards is formed in the center ofthe open groove. The second check washer is arranged at the bottom of the nut and is fixedly mounted in the blind hole. A non-return assembly is further arranged at the bottom of the second check washer. Compared with the prior art, the check bolt assembly is simple in structure and reasonable in design, stability and reliability of bolt connection can be guaranteed for a long time, the influenceof vibration on bolt connection can be reduced, and the check bolt assembly is worthy of popularization.
Owner:HAIYAN GUANGDA STANDARD PARTS CO LTD

Method for preventing looseness through bolt length-diameter ratio

The invention provides a method for preventing looseness through the bolt length-diameter ratio. The mounting environment of a bolt is changed, the bolt mounting effective length is adjusted, the boltlength-diameter ratio is adjusted, and in the bolt use process, the looseness prevention aim is achieved; and the effective length of the mounting bolt is the absolute thickness of a workpiece fastened through the bolt. The method is different from a traditional friction anti-looseness, mechanical anti-looseness and permanent anti-looseness method, looseness prevention is achieved by increasing the bolt length, the machining difficulty is reduced, the number of used parts is small, and assembling is easy.
Owner:JEREH OIL & GAS ENG

Novel automatic lock bolt

The invention discloses a novel automatic lock bolt. An accommodating slot is formed in a screw rod; the accommodating slot is communicated with a horizontal through slot; a first cylinder is arranged at the bottom of the accommodating slot; the first cylinder is provided with a stretching rod which upward extends out; a pushing block is arranged on an end part of the stretching rod of the first cylinder; a switch is arranged on an upper surface of a bolt head; I-shaped parts of two L-shaped rotating blocks are abutted to each other and are accommodated in the accommodating slot; a gap is remained between a lower end part of a bulge and the bottom of the horizontal through slot; the I-shaped parts of two L-shaped rotating blocks can slide up and down in the accommodating slot; when the I-shaped parts of two L-shaped rotating blocks upward slide to the top positions, the I-shaped parts can be downward turned; a '-' part of each L-shaped rotating block comprises a fixing block, a connecting block and a second cylinder; a second switch is arranged on the upper surface of the bolt head. The novel automatic lock bolt provided by the invention can avoid the abrasion or damage to the bulge; the stretching forces of the cylindesr can ensure the contact force and frictional force between the bulge and the two lateral surfaces; the occupied space is small; the novel automatic lock bolt is conveniently taken and used.
Owner:苏州博锦自控阀业有限公司

An automatic new lock nut

The invention discloses a novel automatic check nut. The novel automatic check nut comprises a nut body and two L-shaped rotating blocks, wherein a threaded hole is formed in the nut body; the bottom of the vertical part of each L-shaped rotating block is a fillet; the inner end face of the horizontal part of each L-shaped rotating block is provided with multiple protrusions arranged in an array; the nut body is symmetrically provided with two horizontal grooves; the nut body is provided with vertical containing grooves; a first air cylinder is arranged at the bottom of each containing groove, and a telescopic rod of the first air cylinder extends upwards; a push block is arranged at the end of the telescopic rod of each first air cylinder; the vertical part of each L-shaped rotating block is contained in one containing groove; the width of each horizontal groove larger than the width of each L-shaped rotating block; the vertical part of each L-shaped rotating block can slide up and down in the corresponding containing groove; the horizontal part of each L-shaped rotating block comprises a fixed block, a connecting block and second air cylinders. The novel automatic check nut occupies a small space when not used, is convenient to carry and use, can also be used as a common nut and has multiple functions.
Owner:SUZHOU ZHONGTUO PATENT OPERATION MANAGEMENT CO LTD

Isolation type washing machine inner tub with anti-disengagement buckle structure

The invention discloses an isolation type washing machine inner tub with an anti-disengagement buckle structure. The isolation type washing machine inner tub comprises an inner tub body, an upper doorand a lower door. The buckle structure is arranged in a second groove of the lower door. The buckle structure comprises a middle shaft, a handle plate, two pin shafts, two first connecting blocks, two second connecting blocks and two connecting screws. The middle shaft is fixedly connected to the middle of a second groove of the lower door. The handle plate comprises a connecting plate and a handle. The connecting plate sleeves the middle shaft. The two pin shafts are supported on a first lining on the side wall of the second groove of the lower door. The connecting plate of the handle plateis connected with the pin shafts on the two sides through connecting screws. When the upper door and the lower door are closed, the second groove of the lower door is embedded in the first groove of the upper door, the ends of the pin shafts can penetrate through through holes in the side wall of the first groove of the upper door to be inserted in first positioning holes in the side wall of the inner tub body. An anti-disengagement structure is arranged at one end of the handle. The isolation type washing machine inner tub is reasonable in structure, rapid in operation and good in locking performance.
Owner:江苏泰锋机械制造有限公司

Anti-loose fastener and cushion block

The invention discloses an anti-loose fastener comprising a screwing body and a cushion block. The cushion block is a non-metal elastic body, the screwing body is provided with an abutting end face perpendicular to the screwing axis of the screwing body, the cushion block is provided with a top face, a bottom face and an annular side portion connected with the top face and the bottom face, and a cushion block through hole penetrating through the top face and the bottom face is formed in the center of the cushion block. The outer side wall of the annular side portion is arranged towards the inner side wall of the annular side portion in a concave mode, first anti-skid parts are formed on the top surface of the cushion block, and second anti-skid parts which can be mutually engaged with the first anti-skid parts are formed on the abutting end face. The invention further discloses the cushion block. The anti-loose fastener and the cushion block have the advantages of being high in anti-loose performance, good in shock absorption effect, simple in structure, low in cost, convenient to install and the like.
Owner:山东蓝泉企业发展有限公司

An automatic elastic anti-loosening bolt

The invention discloses an automatic elastic locking bolt. The automatic elastic locking bolt is characterized in that an accommodating groove is formed in a screw; the accommodating groove is communicated with a horizontal straight slot; a cylinder is arranged at the bottom of the accommodating groove, and a telescopic rod of the cylinder extends upwardly; a push block is arranged at an end of the telescopic rod of the cylinder; a switch for controlling the cylinder is arranged on the upper surface of a bolt head; 'I'-shaped portions of 'L'-shaped rotary blocks are accommodated in the accommodating groove, and the bottoms of the 'I'-shaped portions of the 'L'-shaped rotary blocks are in contact with the push block; gaps are reserved between the lower ends of protrusions and the bottom of the horizontal straight slot; the 'I'-shaped portions of the two 'L'-shaped rotary blocks can slide up and down in the accommodating groove; the 'I'-shaped portions of the two 'L'-shaped rotary blocks can be downwardly turned over when upwardly sliding to the highest positions; 'horizontal' portions of the 'L'-shaped rotary blocks comprise fixing blocks, connecting blocks and elastic components. The automatic elastic locking bolt has the advantages that the protrusions can be supported by the elastic components to be in contact with the surfaces of two sides of a plate, contact force and friction force of the protrusions and the surfaces of the two sides of the plate can be kept, and the automatic elastic locking bolt is small in occupied space and convenient to use and is portable.
Owner:南通通泰紧固件有限公司

A device for preventing nut from loosening

The invention discloses a device for preventing a nut from loosening. The device comprises the nut, a rotary shaft and a top cap, wherein the nut is of a hollow cylindrical structure; a first tooth-shaped structure is arranged on an inner wall of the nut; a positioning column is arranged on the top end of the rotary shaft; a hole is formed in one side of the positioning column; a top bead is arranged in the hole; a spring plate is arranged under the top bead; the top cap is of a cylindrical structure; a circle of second tooth-shaped structure matched with the first tooth-shaped structure is arranged on a circumferential surface; a square-shaped hole is formed in one side, facing the nut, of the top cap; a groove is formed in a hole wall of the square-shaped hole; the positioning column ofthe rotary shaft is inserted from one end of a screw cap so as to be arranged in the square-shaped hole; and the top bead is matched with the groove. According to the device for preventing the nut from loosening provided by the invention, through the tight installation coordination of the rotary shaft, the screw cap and the top cap, a rubber covered roller is ensured to be stressed by a constraining force of the nut so as to be prevented from separating during a mechanical rotating process, and the top cap ensures the relative rotation of the nut and the rotary shaft, so that the anti-looseness of the device is ensured.
Owner:CHINA TOBACCO ZHEJIANG IND

Bolt set not prone to loosening

The invention discloses a bolt set not prone to loosening. The bolt set comprises a bolt, a main nut, an auxiliary nut, a fixing ring, a first limiting groove, a second limiting groove and a limitingplate, the bolt is composed of a bolt head and a stud, the stud is fixed to the bottom of the bolt head, the main nut is screwed on the stud, and the fixing ring is fixed to the bottom of the main nut; and external threads are arranged on the outer wall of the fixing ring, the auxiliary nut is screwed on the fixing ring, an auxiliary ring is arranged on the inner wall of the auxiliary nut, the inner diameter of the auxiliary ring is slightly larger than the outer diameter of the stud, and a plurality of first limiting grooves are formed in the stud. According to the bolt set, a first limitinggroove, a second limiting groove and a limiting plate are matched, so that the main nut and the stud are not prone to relative rotation after the bolt set is installed, the bolt set is not prone to looseness, and the connection reliability is guaranteed.
Owner:海盐龙晟科技股份有限公司

Anti-loosening and anti-skidding combined gasket

The invention relates to an anti-loosening and anti-skidding combined gasket. The combined gasket comprises an upper gasket and a lower gasket; the upper gasket is of an upper annular gasket structure; a plurality of upper locking grooves rotating in the forward direction are formed in the front surface of the upper annular gasket structure; a plurality of upper locking teeth rotating in the reverse direction are formed in the back surface of the upper annular gasket structure; the lower gasket is of a lower annular gasket structure; a plurality of lower locking grooves rotating in the reversedirection are formed in the front surface of the lower annular gasket structure; a plurality of lower locking teeth rotating in the forward direction are formed in the back surface of the lower annular gasket structure; a threaded bulge is arranged on the back surface of the upper gasket and extends from the edge of the inner ring of the upper gasket to the edge of the outer ring of the upper gasket; a spiral groove is formed in the back surface of the lower gasket and extends from the inner ring of the lower gasket to the edge of the outer ring of the lower gasket; the bulge of the upper gasket corresponds to the groove of the lower gasket; the back surface of the upper gasket and the back surface of the lower gasket are locked by the aid of the upper locking teeth and the lower lockingteeth; and the threaded bulge of the upper gasket is embedded in the spiral groove of the lower gasket.
Owner:苏州锐德飞自动化设备有限公司

Automatic elastic lock nut

The invention discloses an automatic elastic lock nut which comprises a nut main body and two L-shaped rotating blocks, wherein a threaded hole is formed in the nut main body; the bottoms of I-shaped parts of the L-shaped rotating blocks are arranged as circular corners; a plurality of bulges are arrayed on inner end faces of '-' shaped parts of the L-shaped rotating blocks; two horizontal slots are symmetrically formed in the nut main body; vertical accommodating slots are formed in the nut main body; a cylinder with an upward extending stretching rod is arranged at the bottom of each accommodating slot; a pushing block is arranged on an end part of the stretching rod of each cylinder; the I-shaped part of each L-shaped rotating block is accommodated in one accommodating slot; the width of the horizontal slots is greater than the width of the L-shaped rotating blocks; the I-shaped parts of the L-shaped rotating blocks can slide up and down in the accommodating slots; each of the '-' shaped parts of the L-shaped rotating blocks comprises a fixing block, a connecting block and an elastic part. When the automatic elastic lock nut provided by the invention is not used, the occupied space is small; the automatic elastic lock nut is conveniently taken and used; the automatic elastic lock nut can be used as a general nut and is multifunctional.
Owner:SUZHOU SONGSHUN HARDWARE

Novel automatic check nut

The invention discloses a novel automatic check nut. The novel automatic check nut comprises a nut body and two L-shaped rotating blocks, wherein a threaded hole is formed in the nut body; the bottom of the vertical part of each L-shaped rotating block is a fillet; the inner end face of the horizontal part of each L-shaped rotating block is provided with multiple protrusions arranged in an array; the nut body is symmetrically provided with two horizontal grooves; the nut body is provided with vertical containing grooves; a first air cylinder is arranged at the bottom of each containing groove, and a telescopic rod of the first air cylinder extends upwards; a push block is arranged at the end of the telescopic rod of each first air cylinder; the vertical part of each L-shaped rotating block is contained in one containing groove; the width of each horizontal groove larger than the width of each L-shaped rotating block; the vertical part of each L-shaped rotating block can slide up and down in the corresponding containing groove; the horizontal part of each L-shaped rotating block comprises a fixed block, a connecting block and second air cylinders. The novel automatic check nut occupies a small space when not used, is convenient to carry and use, can also be used as a common nut and has multiple functions.
Owner:SUZHOU ZHONGTUO PATENT OPERATION MANAGEMENT CO LTD

An automatic elastic anti-loosening nut

The invention discloses an automatic elastic lock nut which comprises a nut main body and two L-shaped rotating blocks, wherein a threaded hole is formed in the nut main body; the bottoms of I-shaped parts of the L-shaped rotating blocks are arranged as circular corners; a plurality of bulges are arrayed on inner end faces of '-' shaped parts of the L-shaped rotating blocks; two horizontal slots are symmetrically formed in the nut main body; vertical accommodating slots are formed in the nut main body; a cylinder with an upward extending stretching rod is arranged at the bottom of each accommodating slot; a pushing block is arranged on an end part of the stretching rod of each cylinder; the I-shaped part of each L-shaped rotating block is accommodated in one accommodating slot; the width of the horizontal slots is greater than the width of the L-shaped rotating blocks; the I-shaped parts of the L-shaped rotating blocks can slide up and down in the accommodating slots; each of the '-' shaped parts of the L-shaped rotating blocks comprises a fixing block, a connecting block and an elastic part. When the automatic elastic lock nut provided by the invention is not used, the occupied space is small; the automatic elastic lock nut is conveniently taken and used; the automatic elastic lock nut can be used as a general nut and is multifunctional.
Owner:SUZHOU SONGSHUN HARDWARE
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