9results about How to "Good limit function" patented technology

The utility model provides a lengthened valve rod high platform hard sealing ball valve which comprises a valve body, a heightening support and a valve rod, a packing groove is formed in the side wall of a rod hole, a first containing groove is formed in the top of the valve body, a limiting ring is arranged at the bottom of the heightening support, a first hard sealing ring is arranged in the first containing groove, and a second hard sealing ring is arranged at the bottom of the packing groove. The outer ring of the second hard sealing ring abuts against the side wall of the packing groove, and the inner ring of the second hard sealing ring abuts against the valve rod. Through cooperation of the first hard sealing ring, the first containing groove and the limiting ring, the heightening support is sealed, the first hard sealing ring can provide a better limiting function, the heightening support is limited, the situation that the heightening support is low in price in the installation process is avoided, and the centrality of the heightening support is improved. And on the basis of ensuring the centrality of the heightened bracket, the valve rod is limited through the design of the hard sealing ring II, so that the valve rod has better centrality, and various related parameters of the valve are improved.

The utility model discloses an anti-falling micromotor high-bearing-capacity deep groove ball bearing which comprises an outer ring body, an outer supporting frame body is arranged at the inner end of the outer ring body, a ball body is installed on the inner side of the outer supporting frame body, an inner supporting frame body is arranged on the inner side of the ball body, and an inner ring body is installed on the inner side of the inner supporting frame body. The limiting groove is formed in the outer supporting frame body, a limiting block is arranged on the outer side of the limiting groove, and a limiting frame is arranged on the inner side of the outer ring body; the reinforcing assembly is arranged on the outer side of the inner ring body, the reinforcing assembly comprises a reinforcing plate, an anti-falling block and an anti-falling bolt, and the anti-falling block is arranged on the right side of the reinforcing plate. According to the anti-falling micromotor high-bearing-capacity deep groove ball bearing, the problems that an inner ring cannot be conveniently limited by an existing micromotor high-bearing-capacity deep groove ball bearing, and meanwhile the anti-falling function of the micromotor high-bearing-capacity deep groove ball bearing cannot be conveniently achieved are solved.

The utility model relates to the technical field of cable sleeves, and provides an environment-friendly cable sleeve which comprises a sleeve body. A protective structure is arranged on the outer wall of the sleeve body; a bottom frame is arranged at the bottom end of the protection structure. By arranging the limiting structure, when the bottom frame and the top frame are installed, the bottom outer protruding block and the bottom inner groove at the bottom end of the bottom frame are aligned with the top outer groove and the top inner protruding block at the top end of the other set of top frame respectively to achieve up-and-down assembly. The side outer protruding blocks and the side inner grooves on the left sides of the bottom frame and the top frame of the third set correspond to the side outer grooves and the side inner protruding blocks of the first set respectively to achieve left-right assembly, so that multiple pipelines can be spliced into a whole in the transportation process, the pipelines can be directly placed on the ground conveniently, the sleeves are not prone to sliding off in the transportation process, and the transportation efficiency is improved. The limiting function of the device is realized, and the convenience of the environment-friendly cable sleeve is improved.

The utility model relates to a combined type power assembly suspension assembly which comprises a suspension shock pad arranged on a vehicle frame and an engine support arranged on an engine, the suspension shock pad is provided with a conical concave hole, the engine support is provided with a conical boss, and the suspension shock pad and the engine support are positioned through the conical concave hole and the conical boss and are connected through assembly bolts. The suspension shock pad and the engine support are positioned through the conical concave hole and the conical boss, the problem that when the suspension shock pad and the engine support are assembled, assembly is difficult due to the fact that installation holes are difficult to align is solved, lapping is more convenient, and assembly is more accurate. And meanwhile, the problem that the vibration isolation performance of the suspension shock pad is reduced due to assembly stress in the suspension shock pad caused by assembly deviation is solved.

This utility model relates to the technical field of injection molds, and in particular to an injection molding structure combining a sliding block and a slanted ejector. It includes a front mold assembly, a rear mold assembly, a sliding block mechanism, and a slanted ejector mechanism. The front mold assembly has a front mold core, the rear mold assembly has a rear mold core, and the sliding block mechanism has a sliding block insert. The front mold core, rear mold core, and sliding block insert cooperate to form an injection cavity. The sliding block insert is located on the side of the injection cavity and is used to injection mold the side wall of the plastic part. The slanted ejector mechanism has a slanted ejector rod, and the sliding block insert has a guide slanted hole. The slanted ejector rod passes through the guide slanted hole, thereby cooperating with the sliding block insert to injection mold the undercut on the side of the plastic part. In summary, this design effectively handles the undercut on the side of the plastic part, while simplifying the mold structure, reducing manufacturing costs, and improving demolding reliability.

The utility model discloses a limiting mechanism for fixing a stator core, which relates to the technical field of stator core fixing and limiting, and comprises an annular shell, a plurality of heat dissipation holes are equidistantly arranged on the side surface of the annular shell in the vertical direction, the heat dissipation holes penetrate through the annular shell and are distributed on the equidistant side surface of the annular shell, and limiting grooves are arranged on the periphery of the annular shell. T-shaped grooves are formed in the inner sides of the limiting grooves in an inward penetrating mode, and the annular shells are fixed through clamping. According to the utility model, locking is carried out through the locking and fixing mechanisms among the annular shell, the annular bottom plate and the annular cover plate, so that the stator core on the inner side can be prevented from moving, the stability of the stator core is improved, the function of fixing the stator core can be realized, and a T-shaped groove formed in the inner side of the annular shell is clamped with a stator core plate, so that the stability of the stator core is improved. The stator iron core can be conveniently limited, the use efficiency of the stator iron core is improved, the function of limiting the stator iron core can be further achieved, and finally the problems of fixing and limiting the stator iron core are solved.

The utility model relates to the field of building materials, in particular to a square steel connecting piece for a novel building material, which comprises a floor support plate bottom die, a steel bar truss and a connecting piece, the steel bar truss consists of an upper chord rib, a lower chord rib and a web member, the connecting piece is connected with the floor support plate bottom die through bolts, and the connecting piece is of a hollow tubular structure with two through sides. A through hole is formed in the front face of the connecting piece, a first clamping opening and a second clamping opening with outward openings are formed in the end faces of the two sides of the connecting piece, an inclined face extending downwards is arranged above the second clamping opening, and the lower chord ribs are clamped in the first clamping opening and the second clamping opening respectively. The stability of the steel bar truss in the cement pouring process is enhanced, the possibility that the steel bar truss falls off in the construction process is reduced, and the problems in the background technology can be effectively solved.

The copper wire bending device with the bidirectional limiting function comprises a storage base, a support, a bottom frame and a guiding device, the support is rotationally connected with the storage base, a copper wire is arranged on the storage base, the copper wire is conducted to the guiding device through the storage base, the side end of the guiding device is fixedly connected with a conveying table, the copper wire penetrates through the conveying table, and the conveying table is fixedly connected with the bottom frame. The lower end of the support is fixedly connected with a bottom frame, the side end of the bottom frame is fixedly connected with a supporting plate block, the side end of the supporting plate block is fixedly connected with the conveying table, the side, close to the supporting plate block, of the bottom frame is fixedly connected with a mold base, and the side end of the mold base is fixedly connected with a lining base. A mechanical arm base is installed on the lining base in a limiting mode. The limiting structure limits one end of the copper wire. According to the copper wire bending device belt with the two-way limiting function, the purpose of two-way limiting type copper wire bending is achieved through the arrangement of the structure.

This application relates to a vibration damper and a vibration damping system, belonging to the field of precision vibration damping technology. The vibration damper includes a bottom plate and a top plate arranged at relative intervals, and a spring damping assembly and an anti-rotation limiting assembly disposed between the two. One end of the spring damping assembly is fixed to the top plate, and the other end is fixed to the bottom plate. The anti-rotation limiting assembly includes a limiting support, a limiting structure, and an elastic body. The limiting support is fixed to the bottom plate, and a limiting groove is formed on its side facing the top plate. The limiting structure is fixed to the top plate and is at least partially accommodated in the limiting groove. The elastic body is located between the outer wall of the limiting structure and the inner wall of the limiting groove, separating the outer wall of the limiting structure from the inner wall of the limiting groove. Thus, when the spring damping assembly twists, the limiting structure can compress the elastic body, at least to a certain extent preventing the top plate from horizontally shifting or twisting relative to the bottom plate. Therefore, it can improve the positional accuracy of the object being damped and improve the reliability of the vibration damper.