76results about How to "Reduce extrusion deformation" patented technology

The invention relates to an optical fiber coupling connector for coupling and connecting an optical fiber. The optical fiber coupling connector comprises a body and at least one optical lens, wherein the body is provided with a first end surface and a second end surface which are opposite; the first end surface is provided with at least one optical fiber guiding hole to oppositely accommodate at least one optical fiber; at least one optical lens is arranged on the second end surface; the second surface of the body is provided with at least one inserting groove and at least one buffer groove arranged between the inserting groove and the optical lens. According to the optical fiber coupling connector provided by the invention, the buffer groove is arranged between the inserting groove and the optical lens, the compression deformation of a substrate of the inserting groove can be buffered effectively, and the deviation of the position of the optical lens can be avoided, thus the signal transmission performance of the optical fiber coupling connector is guaranteed effectively.

The invention discloses a moving auxiliary device for mounting electromechanical equipment, and relates to the technical field of electromechanical equipment movement auxiliary devices, in particularto the moving auxiliary device for mounting the electromechanical equipment. The moving auxiliary device comprises a base. Extension plates are arranged on the two sides of the top of the base. Sliding grooves are formed in the two sides of an inner cavity of the base. A moving plate is slidably connected to the middles of the two sliding grooves. Hydraulic rods located on the upper surface of theinner cavity of the base are fixedly mounted on the two sides of the bottom of the moving plate. According to the moving auxiliary device for mounting the electromechanical equipment, a contact plateis compressed by compression springs which are fixedly mounted on one side of the compression plate and are uniformly distributed, during passing through, when the contact plate is in contact with the two sides of the electromechanical equipment, the compression springs deform, so that the problem that the moving auxiliary device extrudes and deforms the electromechanical equipment is effectivelyreduced, and by means of the design, the two sides of the moving auxiliary device can effectively clamp the electromechanical equipment.

An ultra-high frequency digital communication cable, comprising a cable core, a total shielding layer (6), an outer protection layer (7) and branch shielding layers (4) on twisted pair wire groups (3), wherein overlapping sides of the branch shielding layers (4) are clamped between two adjacent insulated single wires to form a branch shielding overlapping wire (8); the branch shielding overlapping wires (8) corresponding to two adjacent pairs of twisted pair wire groups (3) are arranged in a staggered manner; and the length for overlapping, outward-stretching sides of the branch shielding layers (4) to extend outwards from the branch shielding overlapping wires (8) is L1, L1 being 10%-15% of the width of a clad foil band of the branch shielding layers (4). The preparation method comprises the following steps: (1), drawing a copper conductor (1); (2), extruding an insulation layer; (3), twisting twisted pair wire groups (3); (4), cladding branch shielding layers (4); (5), twisting same into a cable; (6), weaving a total shielding layer (6); and (7), extruding an outer protection layer (7) into a finished cable. The communication cable not only has a good shielding effect and can effectively prevent intrusion and leakage of an electromagnetic wave, but also has a firm cable structure and stable transmission performance, and is particularly applicable to transmitting an ultra-high frequency band digital signal.

The invention belongs to the technical field of communication base stations, and particularly relates to a communication base station. The communication base station comprises an upright rod, a plurality of supporting rods are fixedly arranged at the top of the upright rod in the peripheral direction, and supporting columns are hinged into swing grooves through threaded hinge columns. Base stationantennae are installed at the ends of the supporting columns, the base station antennae are arranged in the peripheral direction of the upright rod through the supporting columns, the upright rod issleeved with a rubber annular sleeve, and the outer portion of the rubber annular sleeve is wrapped with a cavity supporting sleeve. The cavity supporting sleeve is formed by splicing elastic rubber plates; a plurality of limiting springs are uniformly arranged between the cavity supporting sleeve and the rubber annular sleeve. The phenomenon that when the antennae swing in a strong wind environment, the base station antennae are blown by wind power to hit against one another or the base station antennae impact on the upright rod, the base station antennae are damaged due to impact is prevented so that the base station antennae can stably send and receive signals. It is achieved that birds are effectively expelled for a long time, labor is saved, and the service life is prolonged.

The invention provides a width-limiting device for construction of small road sections used in traffic engineering, which includes rollers, shock absorbers, square pipe sleeves, guide wheels and tight release rods; the peripheral outer wall of the semicircular water tank is arranged in a circular array There are four rectangular slots, where two quarters of the height of the four rectangular slots are supported and welded with a positioning plate with a central jack, and each of the four rectangular slots is slidably inserted with a roller support shaft; The upper support sleeve of the lower half of the support tube has two guide wheels arranged at intervals up and down; there is a positioning disc on the outer opening of the tube hole, which is screw-locked, and the position of the positioning disc and the center of the plug is equal. An I-shaped notch is provided; an I-shaped elastic block is provided at the tail end of the tight unloading lever. The setting of the guide wheel of the present invention can prevent the rubber tire on the guide wheel from being damaged when the vehicle accidentally touches the guide wheel. The exterior paint of the vehicle is scratched.

The invention provides a comprehensive tunnel drainage, precipitation and pressure reduction construction method, relates to an in-tunnel drainage, ground precipitation and comprehensive pressure reduction construction method for a water and mud burst segment of a tertiary system sand shale tunnel and is mainly designed to solve the problems that an existing tunnel is prone to deformation, collapse and even water burst and mud burst in the tertiary system sand shale construction process. Ground precipitation wells are drilled at the positions, eight meters away from the side lines on the two sides, of a ground-direction positive hole, a flat guide hole is formed near the ground-direction positive hole, a drainage hole is formed in the inclined upper direction of the ground-direction positive hole relative to the flat guide hole, tunnel substrate precipitation wells are drilled in both the substrate of the ground-direction positive hole and the substrate of the flat guide hole, a plurality of inclined drainage holes are formed above the inclined front portion of a vault of the ground-direction positive hole, a positive hole vertical drainage hole is formed above the vault of the ground-direction positive hole, and a flat guide hole vertical drainage hole is further formed above the vault of the flat guide hole. The comprehensive tunnel drainage, precipitation and pressure reduction construction method has the advantages that geological disasters such as collapse, deformation, water burst and mud burst are avoided, and tunnel construction safety can be guaranteed.