41results about How to "Act as a fixed limit" patented technology

The invention provides a butt-joint installation device for a building curtain wall. The installation device comprises a pushing device and a splicing device installed on the side face of the pushing device, the splicing device comprises a side plate, a pair of hydraulic rods are installed at the bottom end of the side plate, and a telescopic device is installed on the side face of the side plate. According to the installation device, through the arranged hydraulic rods, when the building curtain wall is installed in a butt joint mode, the hydraulic rods drive the side plate to move up and down so that the installation height of the building curtain wall can be adjusted, meanwhile, the arranged telescopic device can conduct telescopic adjustment on the building curtain wall, installation is easy and convenient, adjustment is easy, and the installation efficiency of the building curtain wall is improved.

The invention relates to an environment-friendly treatment process for steel mill waste gas emission. A steel mill waste gas emission environment-friendly treatment device is used in the invention. The environment-friendly treatment device for steel mill waste gas emission comprises a filtering mechanism and a liquefying mechanism, the right end of the filtering mechanism is connected with a liquefying mechanism; the lower end of the liquefaction mechanism is mounted on the existing working ground; the design concept of a filtering-cleaning integrated structure is adopted for environment-friendly treatment of steel mill waste gas emission; the initial end and the tail end of the waste gas flowing path are each provided with a structure with a filtering function so that waste gas can be subjected to multi-stage filtering and impurity adsorption treatment, meanwhile, a plurality of cleaning structures are arranged so that the structures with impurities attached to the surface area can beremoved, and the situation that operation between the structures is affected due to the fact that too many impurities are accumulated in the device is reduced.

The invention relates to the technical field of infusion protection devices, in particular to an arm infusion port protection device which comprises a left top plate and a right top plate which can move relatively and are used for clamping an infusion port, the left top plate and the right top plate are both in an L shape and are arranged in a mirror image mode, and each of the left top plate and the right top plate comprises a clamping section and a bending section. The portion between the two clamping sections is used for clamping and positioning an infusion port, each clamping section is provided with an infusion port half protection cover capable of moving along the clamping section, the end face of one infusion port half protection cover is provided with a metal strip, and the end face of the other infusion port half protection cover is provided with a strip-shaped magnet. The two infusion port semi-protection covers are buckled and cover the infusion port by attracting the metal strips through the magnets. The arm infusion port protection device not only can protect an infusion port, but also can position the infusion port during puncture.

The invention provides a crimp type connector which comprises cylindrical connector body, a crimp matched body and an elastic clamping ring. The connector body is connected with the crimp matched body through a clamping structure in a clamped mode, and the connector body and the crimp matched body are fixed through the elastic clamping ring. The crimp matched body and the connector body are limited through the elastic clamping ring, only the elastic clamping ring needs to be replaced during maintenance, and the crimp type connector is very convenient to use, long in service life, short in machining cycle and low in cost.

The invention relates to a steel mill waste gas emission environmental protection treatment system, which comprises a filtration mechanism and a liquefaction mechanism, the right end of the filtrationmechanism is connected with the liquefaction mechanism, and the lower end of the liquefaction mechanism is installed on the existing working ground; the filtration mechanism comprises an L-shaped pipe, a supporting base, a first pipeline, a first protruding block, a first bolt, a second pipeline, an air inlet pipe, a second protruding block, a second bolt and a filtering and cleaning set. The design concept of a filtering-cleaning integrated structure is adopted for environment-friendly treatment of steel mill waste gas emission; the initial end and the tail end of the waste gas flowing pathare each provided with a structure with a filtering function so that waste gas can be subjected to multi-stage filtering and impurity adsorption treatment, meanwhile, a plurality of cleaning structures are arranged so that the structures with impurities attached to the surface area can be removed, and the situation that operation between the structures is affected due to excessive impurities accumulated in the system is reduced.

The invention belongs to the technical field of fixtures, and in particular relates to a fixture, which includes an intermediate fixture and an execution fixture, wherein the execution fixture is connected with the inherent fixture on the machine tool through the middle fixture; the fixture designed by the invention can be applied to a cylinder with a thinner thickness In the process of use, the inner wall and the outer wall of the workpiece are fixed at the same time by three inner splints and outer splints, which can improve the fastening effect. Under the same fastening effect, the clamping force of the fixture on the workpiece can be The relative reduction prevents the occurrence of pinching the workpiece to a certain extent. In the present invention, three fastening mechanisms are designed. After the positions of the three mounting shells are fixed relative to the housing of the execution fixture, the three mounting shells of the three fastening mechanisms play a fixed and restrictive role, ensuring that the fixture clamps the workpiece. stability.

The invention discloses a novel smartwatch capable of changing a dial plate appearance based on watch ring rotation. The novel smartwatch structurally comprises a watchband and a smart dial plate, wherein the watchband and the smart dial plate are locked; the watchband is composed of a watchband body and a watch buckle, wherein the watchband body and the watch buckle are in glued connection; and the smart dial plate is composed of a smart ring plate and a central dial plate body, wherein the smart ring plate and the central dial plate body are buckled, and the smart ring plate comprises a smart watch ring and a rise control device. According to the novel smartwatch, movement of a running rail rack is realized by rotating a decorative ring to start a controller, an auxiliary lifting branchring is driven to move up during the movement of the running rail rack, increase of the height of a rise control frame and a central lifting structure is realized, and then increase of the height of the smart dial plate is realized; and it is convenient for a user not to take off the novel smartwatch in use, a simplified style is realized, the function of changing the figure of the dial plate is achieved, the user can wear the novel smartwatch for a long time and can switch the height of the dial plate at will, and the novel smartwatch is convenient to use on multiple occasions and can be matched with multiple styles of clothing.

The invention discloses a multi-dimensional curvilinear limit device for wire and cable maintenance, which comprises a limit base, a twisting curvilinear variable-diameter engagement limit mechanism, a wrap-type expansion and positioning transverse limit device, and a pre-type pull-down cover type protection Mechanism and self-service intermediary PSA limiter. The invention belongs to the field of electric power engineering, and specifically refers to a multi-dimensional curved limit device for wire and cable maintenance; the curved surface principle, dynamic principle and nesting principle are applied to the technical field of electric power engineering, and by changing the spring type dynamic curved The position of the stretching elastic sleeve rod is reduced at the same time, and the circumferential diameter of the spring-type dynamic curved stretching elastic sleeve rod is reduced, so as to realize the axial ring with the support shaft as the central axis in the twisting, curved, diameter-changing and engaging limit mechanism. The wires and cables in different directions on the surface are fixed, and at the same time, the elastic shape of the spring-type dynamic curved stretch elastic sleeve is used to change the tightness of the fixation, which solves the contradictory technical problem that the wires and cables are both fixed and not completely fixed.

The invention provides a device for testing the performance of a rotary electric brush of constructional engineering machinery. The device comprises a box body and a fixed shell; a motor is arranged at the left end of the box body, the motor is rotatably connected with a transmission shaft, and three groups of commutator segments are uniformly arranged on the transmission shaft; the lower end of the box body is fixedly connected with a bottom plate, two sets of V-shaped grooves are symmetrically formed in the surface of the bottom plate, and collecting boxes are arranged at the bottom ends ofthe V-shaped grooves; three sets of bases are arranged at the upper end of the bottom plate in an aligned mode, two sets of limiting devices are symmetrically arranged at the upper ends of the bases,and the limiting devices are fixedly connected with connecting columns. and a conductive device is arranged in the fixed shell, a partition plate is arranged in the middle of the fixed shell, and a threading hole is formed in the middle of the lower end of the partition plate. According to the invention, a bidirectional lead screw is in threaded connection with two sets of sliding plates, so thatthe two sets of sliding plates move inwards at the same time when a hand wheel is rocked to drive the bidirectional lead screw to rotate, the fixed shell is always positioned in the middle of a U-shaped table, and carbon brushes at the two ends of a commutator segment are always positioned at symmetrical positions.