48results about How to "Prevent rotational displacement" patented technology

The invention discloses a monitor mounting and fixing device, comprising a hemispherical monitor body and a flexible bracket. The bottom edge of the monitor body is provided with at least one horizontal chute; one end of each chute, which is close to the monitor body, is vertically provided with a main baffle plate; the flexible bracket is formed by aerofoil-shaped plates corresponding to the chute and surrounded at the bottom edge of the monitor body; each aerofoil-shaped plate is integrally provided with a slide rail extending towards the center of the monitor body and sliding relatively in each chute; the joint of each slide rail and the aerofoil-shaped plate is vertically provided with an auxiliary baffle plate corresponding to the main baffle plate; and the corresponding auxiliary baffle plate and main baffle plate are connected through a spring. The spring is used to drive the flexible bracket so as to from the monitor mounting and fixing device with variable diameter. The monitor mounting and fixing device is simple in structure and convenient to operate.

This rotary control system for a device includes a rotary control member, and a rotary control handle, a blocking device that can be selectively moved, when the rotary member is in its first position, between a blocking configuration and a release configuration. This system further includes a locking plate, rotationally mobile about the first axis relative to the rotary member, when the rotary member is in its first position, between a locking position and an unlocked position. The locking plate is such configured that when the blocking device moves between the corresponding locking position and the unlocked position, the blocking device is switched between the blocking configuration and the release configuration.

The invention discloses slitting equipment for a thin plate. The slitting equipment for the thin plate comprises a base, a table top, a shell cover and a plate pressing device, wherein supporting plates are symmetrically arranged on the left side and the right side of the top of the base, cutting shafts are arranged between the supporting plates, the two ends of the cutting shafts are rotationallyconnected to the supporting plates through first bearings, the left ends of the cutting shafts penetrate out of the supporting plates, the left end parts of the cutting shafts are in transmission connection with power equipment through a belt transmission mechanism, cutting blades are fixedly mounted on the cutting shafts in a sleeve manner, the shell cover is erected at the tops of the supporting plates, the table top is located between the two supporting plates, the table top is fixedly installed on the base, and the plate pressing device is located on the inner sides of the supporting plates and comprises a sliding rail and a sliding block. According to the slitting equipment, when the slitting equipment works, a worker pushes the plate from the front end of the equipment, a power mechanism drives the cutting shafts to rotate through the belt transmission mechanism, the cutting shafts rotate, and the plate enters the space between the cutting blades on the two cutting shafts to becut.

The invention discloses a bar extruding molding die with holes, which comprises a mandrel seat, a mandrel and a bar forming mold body, the mandrel seat is a disk mandrel seat, and the outermost side far away from the center of the circle is provided with A protruding fixing part, through which the mandrel seat is detachably fixed above the bar forming die body and completely covers the bar forming die body, the mandrel passes through and is assembled in the axial direction of the mandrel seat In the center, the core rod passes through the rod forming die body and is suspended and fixed inside the rod forming die body through the core rod seat. The bar extrusion molding die with holes of the present invention is provided with a protruding fixing part on the mandrel seat, and the mandrel seat can completely cover the bar forming die body through the fixing part, and there is no gap between the mandrel seat and the die body. There is a gap, which avoids the problems that the core rod seat cannot be taken out and the mold cannot be cleaned due to the accumulation of material in the gap, thereby avoiding the product from being dirty.

The invention discloses a swirler airflow test tool holddown gear comprising a tool mount body with a disc structure; the middle of the tool mount body is provided with a cavity used for mounting thetest tool; a seal pad is arranged in the cavity; the tool mount body is connected with a cylinder bearer through a plurality of poles; a cylinder is arranged on the cylinder bearer; a compact cavity is arranged between the plurality of poles, and arranged right above tool mount body cavity; a control circuit controlling the cylinder to open / close is provided, and comprises a compact switch controlling the cylinder to move downwards, and a first solenoid valve connected with the compact switch; the control circuit also comprises a loose switch used for controlling the cylinder to move upwards,and a second solenoid valve connected with the loose switch; the first and second solenoid valves are respectively connected with the air inlet of the cylinder through a cylinder current limiter; thedevice is reliable in sealing, can conveniently and fast clamp the test tool, and safe and reliable, thus preventing the experiment data inaccurate problems caused by gas leakage.

The invention belongs to the technical field of connectors and specifically relates to a waterproof terminal of a connector. A front end of a terminal body is connected with a contact arm, and the contact arm is of a conical structure defined by a plurality of strip-shaped bodies, wherein the diameter of the opening end of the conical structure is less than that of the bottom end of the conical structure, and a gap is reserved between every two adjacent strip-shaped bodies. The terminal body is provided with an annular groove used for installing a rubber mat, and the annular groove is providedwith an anti-skid structure to prevent the rubber mat from sliding. The terminal is low in cost and good in sealing performance.

The invention discloses progressive elevator safety tongs, and belongs to the field of elevator accessories. The progressive elevator safety tongs comprise a supporting frame, supporting plates, U-shaped plate springs, guide blocks, positioning pins and limiting blocks, wherein the supporting plates are positioned on the inner side of the supporting frame, the U-shaped plate springs are positionedin the supporting frame and correspond to the upper parts of the supporting plates, the guide blocks are symmetrically installed on the inner sides of the U-shaped plate springs, the positioning pinsare used for fixing the U-shaped plate springs and the guide blocks to the supporting frame, and the limiting blocks are used for limiting the movement of the U-shaped plate springs. The positioningpins sequentially penetrate through the supporting frame and the U-shaped plate springs and are fixedly connected with guide rails, first through holes and second through holes for the positioning pins to penetrate through are formed in the positions, corresponding to the positioning pins, of the supporting frame and the U-shaped plate springs respectively, and the diameters of the first through holes and the second through holes are at least larger than those of fixed pins; a jaw is formed in the supporting frame; and at least two fixed pins are arranged between the guide rails and the supporting frame. The elevator safety tongs are simple and stable in structure, the stability of the installation positions of the plate springs can be effectively kept, the deformation risk of the positioning pins is reduced, and the elevator safety tongs is safe to use.