53results about How to "No loosening problem" patented technology

The invention relates to a connector for shakeproof threaded connection, which comprises a plug and a socket, wherein the plug comprises a plug shell; a connection nut with an inner thread is rotationally arranged outside the plug shell; the socket comprises a socket shell of which the inserting-matching end is provided with an outer thread; one side of the connection nut positioned at the inserting-connecting end of the plug is provided with a stepped hole with a big outside and a small inside; a large-diameter segment of the stepped hole is provided with a clamping nail; the inner thread of the connection nut is arranged in a small-diameter segment of the stepped hole; an anti-loosening mechanism preventing the connection nut from rotating reversely and loosening is arranged between the connection nut and the plug shell; the inserting-connecting end of the socket shell is a stepped shaft corresponding to the stepped hole; the outer thread on the socket shell is arranged in the small-diameter segment of the stepped shaft; the large-diameter segment of the stepped shaft is provided with a spiral groove; the termination end of the spiral groove is provided with a positioning groove deflecting towards the outer thread; the inserting-connecting end of the socket is provided with an inserting-connecting cavity; the bottom of the inserting-connecting cavity is provided with an elastic piece in corresponding push-press fit with the inserting-connecting end of the plug shell.

The invention relates to a servo punching main transmission device of a numerical control turret punch press. The servo punching main transmission device comprises a crankshaft, a connecting rod, a punch and a servo motor. One end of the crankshaft is mounted on a supporting plate below a bottom plate through two self-aligning roller bearings, the upper end of the connecting rod is connected with the crankshaft through a cylindrical roller bearing, and the lower end of the connecting rod is connected with the punch through a hinge pin. The other end of the crankshaft is connected with a rotor of the servo motor through an expanding sleeve, and the punch is placed inside a guide holder below the supporting plate. The servo punching main transmission device of the numerical control turret punch press is simple and compact in structure, high in transmission efficiency, convenient to dismount and mount, small in noise, small in loss and saving in energy.

The invention discloses an integrated motor end cover which comprises a motor end cover and an executive device end cover. A boss is arranged on the motor end cover, and a seam allowance is formed in the executive device end cover. The motor end cover and the executive device end cover are of an integrated structure, and the motor end cover and the executive device end cover are connected into a whole through a connecting body. The integrated motor end cover is further characterized in that the center axis of the boss on the motor end cover is not coaxial with the center axis of the seam allowance in the executive device end cover, and a plurality of reinforcing rib plates are arranged between the motor end cover and the executive device end cover. The integrated motor end cover is high in structural strength, and the problems that a fit clearance exists between the motor end cover and the executive device end cover, and a fastener loosens are solved.

The invention discloses an automobile engine fixing device, and belongs to the field of automobile engine fixing. The automobile engine fixing device comprises a mounting plate used for mounting engine equipment, a quick detaching mechanism used for quickly fixing or detaching the engine equipment is arranged on the mounting plate; and a fixed base is arranged below the mounting plate, and the fixed base and the mounting plate are connected through a first shock absorption mechanism and a shock absorption damping mechanism which are matched with each other. According to the automobile engine fixing device, stably fixing the engine equipment can be carried out, the engine equipment and the mounting plate can be conveniently mounted and dismounted, and shock absorption can be carried out onthe engine equipment, so that the stability of the engine equipment during work is guaranteed, and protecting the engine equipment is realized.

The invention discloses a method for examining loosing of iron tower bolts. The method combines the iron tower vision measurement technology with theoretical calculation to predict loosing of bolts, and adopts the vision measurement method to measure vibration of iron towers. By adopting the non-contact method, potential safety hazard caused by iron tower climbing measurement is avoided, natural wind is utilized as the power source, and the method is time-saving and labor-saving as compared with artificial iron tower climbing cable-lanyard measurement.

The invention provides an implant for fixing an orthopedic prosthesis and an acetabular cup prosthesis. The implant comprises a head end and a tail end, wherein the head end is provided with a top anda bottom, the thickness from the bottom to the top decreases progressively to enable the implant to enter a preset area, and the ratio of the maximum width to the maximum thickness of the implant isgreater than 1.155. The implant is in a thin shape on the one hand and can reduce bone defects during implantation; and on the other hand, punching holes in an acetabulum and measuring the depth of the holes are not needed, and the implant can be inserted without alignment. The operation process of fixing the acetabular cup prosthesis is simplified, and the problem of loosening of the acetabular cup prosthesis caused by inaccurate screw implantation position does not occur.

The invention relates to an shock-proof check connector, which comprises a connector shell and a connecting nut arranged outside the shell and a check mechanism arranged between the connecting nut and the connector shell for preventing the connecting nut from rotating backward and becoming loose, wherein the check mechanism comprises a circle combining snap spring, an elastic ratchet ring and a baffle plate, which are compactly arranged between the connecting nut and the connector shell along an axis in turn; a retainer ring with an L-shaped axial section is sleeved outside the circle combining snap spring; the retainer ring is in rotation-stopping fit with the circle combining snap spring; the circle combining snap spring is arranged on the connector shell in a clearance manner and is in rotation-stopping fit with the elastic ratchet ring; an elastic suspension arm extending circumferentially is integrally arranged on the outer circle of the elastic ratchet ring; the suspended end of the elastic suspension arm is provided with a raised gear rising outward radially; and a ratchet in corresponding unidirectional meshing with the raised gear is arranged in the connecting nut. The connector can effectively perform checking and is suitable to be used in environments with shocking.

The invention discloses a saddle terminal and a switch socket, relates to the technical field of electrical switches and solves the problem of the prior art that as connection sheets easily skew during wiring, poor contact occurs between a moving contact and stationary contact of a switch. The saddle terminal comprises a saddle terminal body and a stationary contact; the saddle terminal body includes a first bent portion and a second bent portion; the first bent portion is of square cavity structure; a fastener is mounted on the first side of the first bent portion; the second bent portion covers an opening in one end of the first bent portion and is connected with the first bent portion; the stationary contact is fixed to the second bent portion.

The invention discloses a vibration-prevention motor seat. The vibration-prevention motor seat comprises a fixed seat, support seats and support legs, wherein the support seats are welded with a lowersurface of the fixed seat, connection plates are welded with an upper surface of the fixed seat, a plurality of fixed holes are formed in the connection plates, two connection plates are connected via a first bolt, at least two fixed seats are hinged via a hinge, an accommodating cavity for foxing a motor is formed, a plurality of support legs are arranged between a side surface of the fixed seatand the support seats, upper ends of the support legs are fixed on the side surface of the fixed seat by second bolts, a gap is formed between the second bolts and inner walls of the support legs, atleast two first expansion cushion blocks and at least two second expansion cushion blocks sleeve parts, arranged in the support legs, of the second bolts and are arranged in an extrusion and staggered way. By the vibration-prevention motor seat, the problem that a fixed position of the motor seat is easy to get loose due to vibration of the motor in the working process during application of the motor seat in the prior art so as to affect fixing stability of the motor is solved.

The invention relates to the technical field of toys and particularly relates to a processing technology of a movable joint of a toy. The movable joint of the toy is composed of more than two components, and the components are mutually matched to enable two components to rotate relatively and prevent the two components from loosening; all the parts are of an integrated injection molding structure, melting points of materials forming all the parts are different, the injection molding sequence of all the parts is sequentially carried out according to the melting points from high to low, and the parts subjected to later injection molding are formed by secondary injection molding on the basis of the parts subjected to previous injection molding; and difference between the lowest melting temperatures of the two adjacent injection molding materials is 20-300 DEG C. According to the method, the toy movable joint is machined in a repeated injection molding mode, compared with the prior art, manual assembly is not needed, and consistency of tightness of products machined in the same batch through an injection mold is good.

The invention discloses a rapid folding mechanism of a bicycle. The rapid folding mechanism of the bicycle comprises a bicycle rear frame, a movable steel tube and a pressing head; an upper rotating sleeve is fixed on one side of the bicycle rear frame; a lower rotating sleeve is fixedly connected to the upper rotating sleeve through the movable steel tube; a movable column is arranged at the center of the movable steel tube; a return spring is mounted on the external surface wall of the movable column; a backing plate is connected to one side of the movable column in a sleeving manner; a rubber sleeve is welded on one side of the backing plate; the pressing head is mounted on the other side of the rubber sleeve; a rotating shaft is arranged at the center of the pressing head; an anti-skidhole is formed in the external surface wall of the pressing head; a locking buckle is mounted above a fixing arc plate; and a fixing plate is arranged on one side of the locking buckle. According tothe rapid folding mechanism of the bicycle, the folding mechanism is compactly structured and convenient to use; and moreover, as the return spring, the backing plate and the rubber sleeve are arranged on equipment, the return spring guarantees the safety of the connection, and the backing plate and the rubber sleeve guarantee the stability of the mechanism during using.

The invention provides a courtyard outer overhanging glass guard bar mounting structure. The courtyard outer overhanging glass guard bar mounting structure comprises a guard bar fixedly mounted on a ground base layer, the guard bar comprises a handrail and a glass plate, the handrail comprises an inclined rod which extends in a slant manner, one end of the inclined rod is fixedly connected with the handrail, the other opposite end of the inclined rod is fixedly connected with an embedded part, the cross section of the embedded part is in a U shape, the embedded part is fixedly embedded in theground base layer, the structure can be suitable for mounting of some areas with large limiting, and stability of mounting of the handrail in the area is ensured.

The invention discloses a fixing method and a fixing structure of an optical lens in a laser system. A lens frame and optical lenses are included, the optical lenses are installed on the lens frame, abonding pad is arranged between the lens frame and the optical lenses, and a metal layer is arranged at a position where the optical lenses and the bonding pad are contacted. A roughening treatment layer is arranged on a surface of the metal layer, and the metal layer can make contact with a welding flux in a larger area in a welding process so that firmness of the metal layer and the welding flux is improved. A welding mode is adopted to carry out fixation so that a problem of loosening of the optical lens relative to a threaded pressing mode can be avoided. Compared with an adhesive adoptedin the prior art, the welding flux does not volatilize so that a surface of the optical lens, a crystal surface and the like in a sealed laser cavity can be prevented from being polluted, laser performance is ensured, and meanwhile, the adhesive cannot be attached to a light-transmitting surface of the optical lens due to misoperation in an operation process.

The invention relates to a slack-preventing connector comprising a connector casing. A connecting screw cap is assembled outside the connecting casing; a slack-preventing mechanism for preventing the connecting screw cap from reversing and slacking is arranged between the connecting screw cap and the connector casing and comprises a doubling-up jump ring, an elastic ratchet ring and a baffle which are pressed between the connecting screw cap and the connector casing along the axial line in sequence; the doubling-up jump ring is in interference passing installation with the connector casing and is in check swing fit with the elastic ratchet ring; an outer ring of the elastic ratchet ring is integrally provided with an elastic cantilever extending along the circumferential direction; convexteeth protruding outwards along the radial direction are arranged at the tail end of the elastic cantilever; the connecting screw cap is internally provided with ratchets which are correspondingly and unidirectionally meshed with the convex teeth; a circular bead is arranged on the outer circumferential surface of the connector casing; an annular table is arranged on the inner circumferential surface of the connecting screw cap; and an anti-backlash spring is pressed between the annular table and the circular bead. The connector can effectively prevent slack and is applicable for environmentswith vibration.

The invention discloses a clothes belt fastener. The clothes belt fastener comprises a quadrangular frame, the frame comprises two transverse edge frame bodies, two connecting parts are arranged between the two transverse edge frame bodies and both provided with a protrusion part, the protrusion parts on the two connecting parts are located on the upper and lower sides of the frame respectively, and multiple stripes are arranged on the outer surface of each protrusion part. The clothes belt fastener cooperating with a clothes belt can fasten clothes, the clothes belt and the fastener are not easily loosened, and the problem of loosening of the clothes cannot occur.

The invention discloses a special-shaped wrench with an adjustable opening. The wrench comprises a wrench head and a wrench arm, the wrench head is of an inverted hook structure, the lower end is rotatably connected to the end of the wrench arm through a hinge rod, an arc sawtooth part is arranged on the upper end of the wrench arm, a strip adjusting groove is formed in the position, on the connecting position of the hinge rod, of the wrench head, the length direction of the strip adjusting groove is the same in the length direction of the wrench head, multiple arc clamping grooves equal to the diameter of the hinge rod are formed in the length direction of the strip adjusting groove, the arc clamping grooves are symmetrically arranged relative to the length direction of the strip adjusting groove, the hinge rod is provided with two symmetric cutting faces, the interval between the two cutting faces is smaller than the width of the strip adjusting groove, and the two ends of the stripadjusting groove are locked through nuts. Adjustability of the opening of the special-shaped wrench can be achieved, the application site is greatly added, the use range is widened, the equipment costis reduced, more wrenches do not need to be carried, the weight of carrying tools is reduced, time and labor are saved, adjusting is convenient and rapid, connection is reliable and stable, and loosening is avoided.

The invention discloses a stable locking structure for a drawer. The stable locking structure for the drawer comprises a locking device, the locking device at least comprises a connecting seat, a front hole is formed in the front part of the connecting seat, a front fastening part is arranged on the front hole, and a side hole is formed in the side part of the connecting seat; a side fastening part is formed in the side hole; wherein the front hole forms a certain acute angle with the bottom surface of the connecting seat, and the side hole and the bottom surface of the connecting seat are perpendicular to each other. The structure is improved and the mutual cooperation of the front fastening part and the side fastening part is utilized, so that the locking device is stably assembled on the furniture drawer, and the stability and the firmness of the mutual assembling of the locking device and the furniture drawer are improved so as to avoid the disadvantage that the locking device in the prior art can only be fixed to a bottom plate of the furniture drawer, and the practicability is high.