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

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.

The invention relates to the field of mechanical fastening pieces, in particular to a check bolt. The check bolt comprises a fastening bolt and a fastening nut in threaded fit with the fastening bolt, and further comprises two semicircular clamping blocks buckled on a fastening bolt screw rod, wherein the end parts of the two semicircular clamping blocks are locked on the fastening bolt screw rod through a locking bolt and a locking nut; one end of the fastening nut is vertically and oppositely beveled with convex self-locking surfaces; and the same ends of the two semicircular clamping blocks are inclined beveled with concave self-locking surfaces tightly fitting the convex self-locking surfaces. When the check bolt guarantees the check effect, once the fastening bolt is loosened, the fastening is convenient; and the check bolt is particularly suitable for an underground working surface extra-heavy reversed loader.

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.

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.

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.

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.

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.

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.

The invention relates to an anti-loose high-pressure oil plug. The oil plug (1) is rotatably connected to an oil path block (2), and the oil plug (1) is sleeved with a check ring (3) in contact with the oil path block (2) in an abutting manner; the check ring (3) is fixedly arranged on the oil path block (2) and comprises a pressing plate (31) compressed on the upper surface of the oil plug (1); and a protruding ring (32) is arranged on the lower surface of the pressing plate (31) in a protruding manner, and forms blocking to the side face of the oil plug (1). Through the arrangement of the check ring and the pressing plate, the pressing plate tightly presses the oil plug from the upper portion, and the pressing plate is tightly fixed to the oil path block through the check ring, so that the anti-loose effect is forcefully ensured; and due to the arrangement of the protruding ring, the protruding ring blocks the oil plug, and in the working process, the oil path cannot generate lateral movement.

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.

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.

The invention discloses an elastic locking bolt. A bolt body is formed by connecting a bolt head with a screw, horizontal through grooves are formed in the upper surface of the bolt head, a round corner is formed at the bottom of an I portion of each of two L-shaped rotating blocks, multiple protrusions are arrayed on the inner end face of a - portion of each L-shaped rotating block, containing grooves are formed in the screw and communicated with the horizontal through grooves, the I portions of the L-shaped rotating blocks are close to each other and contained in the containing grooves, a gap is reserved between the lower end of each protrusion and the bottom of the corresponding horizontal through groove, the I portions of the L-shaped rotating blocks can slide up and down in the containing grooves and can overturn downwards when upwards sliding to the highest positions, and the - portion of each L-shaped rotating block comprises a fixing block, a connecting block and an elastic part. The elastic parts can support the protrusions to contact with the surfaces of two sides of a plate so as to maintain contact force and friction force between the protrusions and the surfaces of the two sides, and the elastic locking bolt is small in occupied space and convenient to carry and use.

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.

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.

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.

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.

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.

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.

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.