44results about How to "Small headroom" patented technology

The invention discloses a brick wall reinforcing method and structure. The method includes the steps of enabling reinforcing mesh pieces to be attached to the two faces of a brick wall after a paint layer is removed from the surface of the brick wall to be reinforced, fixing the reinforcing mesh pieces on the two sides of the wall body through steel ties, enabling the wall body to be clamped between the reinforcing mesh pieces, and then spraying cement mortar. The wall body and a reinforcing body are connected into a whole, and therefore bearing capacity, lateral stiffness and wall body ductility of the brick wall can be greatly improved. According to the brick wall reinforcing method and structure, a traditional brick wall cross section expanding method is changed for reinforcement, and influences on clearance and attractiveness of a building are small. The method is safe and reliable in technology, easy and convenient to implement and high in operability, and practice shows that the reinforcing effect is good as well.

A capacitively-decoupled broadband 5G MIMO mobile phone antenna comprises a metal floor, a metal frame and one or more sets of integrated dual-antenna assemblies. The metal floor is provided with oneor more floor slots at the edge, and the integrated dual-antenna assemblies are installed in the floor slots in a one-to-one correspondence manner. The metal frame is a closed connection structure with an even number of frame slots, and each set of integrated dual-antenna assembly corresponds to two frame slots. Each integrated dual-antenna assembly contains a first feeding branch, a second feeding branch and a decoupling assembly, and the decoupling assembly can be a lumped capacitor or a distributed capacitor. The 5G MIMO antenna designed by the capacitive decoupling technology has the advantages of broad band, high efficiency, small size, low headspace, compatibility with a metal frame and dual-antenna integration, and is suitable for various small mobile terminals represented by mobilephones.

The invention discloses a strip filling method of conventional mining face goaf pumping cementing materials. The method includes: designing strip filling bodies in a goaf along an advancing direction, constructing a first small filling strip at determined strip filling body positions according to a principle that the intervals among rear four rows of support columns are filled when a conventional mining face advances to the seventh row of support columns, sequentially completing small filling sections from bottom to top along the inclination direction of the mining face in the same manner, and building an upper-end gangue wall on the lying side of an upper roadway so as to prevent gangue slurry from overflowing and form the first small filling strip; constructing a second small filling strip and the like according to the construction step of the first small filling strip until the design width of the strip filling bodies is reached. The method has the advantages that during the filling process and after the strip filling is completed, the method is good in roadway safety, good in strip forming quality, high in construction efficiency, low in filling cost, and the like.

The invention provides a MIMO antenna system of a terminal. The system is composed of eight antennas that are divided into two groups, three groups or four groups of compact high-isolation antenna units; each compact high-isolation antenna unit group includes two antennas. When two groups of compact high-isolation antenna units are arranged, the two groups of compact high-isolation antenna units are arranged at the edge of a main board of the terminal at an interval; and the rest of four independent antennas are arranged at intervals by being far away from the main board in the terminal or inan antenna synchronization multiplexing manner based on the fixedly setting function inside the terminal. According to the MIMO antenna system, the space is saved.

The invention discloses a loading system for a full-automatic numerical control laser pipe cutting machine. The loading system comprises a pipe frame, a pipe fitting carrying module and a pipe cuttingconveying table arranged in sequence; multiple metal pipes to be cut are arranged on the pipe frame in sequence; and the pipe fitting carrying module is operated to transfer the metal pipes to be cutfrom the pipe frame to arrange on the pipe cutting conveying table end to end in sequence. The loading system for the full-automatic numerical control laser pipe cutting machine can orderly load themetal pipes, arranged in sequence, on the cutting conveying table in sequence by the pipe fitting carrying module for cutting, realizes synchronous implementation of loading and cutting of the metal pipes, improves the cutting efficiency, and saves both time and power.

The invention discloses an antenna system based on a smart phone with an all metal back cover. The antenna system comprises a metal back cover and an integrated PCB, wherein the upper edge and the lower edge of the metal back cover are each provided with a C-shaped clearance, the upper end of the metal back cover form a C-shaped radiation main body due to a part separated by the clearance, the integrated PCB is provided with a plurality of coupling units coupled with the C-shaped radiation main body, and the clearance is provided with a connecting piece communicating the C-shaped radiation main body with the integrated PCB. Due to the all metal back cover structure, the antenna system has an excellent radiation performance, and the radiation performance of each frequency of the antenna is improved while the metal back cover is more integral.

The invention relates to the technical field of terminals, and particularly relates to a liquid antenna assembly and electronic equipment thereof. Conductive liquid is used as an antenna radiator so as to reduce clearance required for a mobile phone antenna. A power output source drives a piston to move in a liquid storage tank and the conductive liquid in the liquid storage tank flows into or outof the cavity so as to change the length of the conductive liquid as the antenna radiator in the cavity, adjust the frequency band of the liquid antenna, reduce the extra insertion loss caused by adjusting the frequency band of the antenna by the antenna switch or the tuner and improve the performance of the antenna.

The low-headroom hoisting device and the hoisting system provided by the present invention relate to the technical field of engineering and construction. The low-headroom hoisting device includes: a casing, a spreader, a traveling unit and a hoisting unit; the traveling unit includes driving the casing The hoisting unit includes a hoisting motor that drives the spreader to lift and lower, and the hoisting motor and the traveling motor are respectively arranged on both sides of the running track. In the low-headroom hoisting device provided by the present invention, the hoisting motor and the traveling motor are respectively arranged on both sides of the running track, which can not only greatly reduce the clearance of the whole device, but also can grab heavy objects higher. At the same time, it can also make the weight distribution of the whole device reasonable, and the center of gravity is on the center line of the running track, which has the advantages of low headroom and structural size.

The invention provides a chip antenna device and purposes thereof, and an electronic product provided with the chip antenna device. The chip antenna device comprises a chip antenna, a transmission line, and a shielding case arranged outside the chip antenna. The chip antenna comprises a substrate and a radiation part which is arranged on the substrate and is connected with the transmission line. The shielding case is provided with an opening. The radiation part is disposed in the shielding case. The chip antenna device has the following advantages: the size is small, the net clearance is small, the effects are comprehensive, and good antenna performance can be maintained under a shielding condition.

The invention relates to a method for determining the overall deceleration values (bmax, bmin), which can be achieved by actuating wheel brakes, of a utility vehicle (6) or a vehicle combination (24)comprising multiple axles (7, 8). The invention further relates to a brake system for carrying out the method and to a utility vehicle or a vehicle combination comprising such a brake system for carrying out the method. The aim of the invention is to determine the currently achievable overall deceleration values (bmax, bmin) for decelerating a utility vehicle or a vehicle combination with multipleaxles during travel. According to the invention, this is achieved in that the brake force is distributed (26) such that brake forces (F1, F2, F3, F4) are distributed unequally to brake units (1, 2, 3, 4) comprising the wheel brakes (10) of one or more axles (7, 8) in order to implement a deceleration request (20) during a partial braking process (27). One of the brake units (1, 2, 3, 4) is selected, and a greater brake force (F2) is applied by said selected brake unit (29) than via the other brake units (1, 3, 4), and a current deceleration b of the utility vehicle (6) or the vehicle combination (24) is measured or ascertained and paired with the respective selected brake unit (29) as the corresponding partial deceleration value (b1, b2, b3, b4) and is stored. The achievable overall deceleration values (bmin, bmax) are determined as the sum (31) of the partial deceleration values (b1, b2, b3, b4) of the brake units (1, 2, 3, 4).

The invention belongs to the technical field of logistics equipment, and relates to a loading shuttle car for docking with an automatic guiding transport vehicle. The shuttle car comprises a shuttle car bottom frame movably arranged on a rail, wherein one end, along the length direction, of the shuttle car bottom frame is provided with a driving shaft and the other end of the shuttle car bottom frame is provided with a driven shaft; the driving shaft is driven by a horizontal running motor arranged on the shuttle car bottom frame; the driving shaft and the driven shaft are respectively supported on the rail through traveling wheels; a roller conveyor is arranged on the shuttle car bottom frame; the roller conveyor comprises two rows of conveying roller ways arranged in parallel; driven chain wheels are respectively arranged at mutually close ends of two conveying rollers positioned on the same axis in the two rows of conveying roller ways; a roller conveyor driving motor is arranged outside a frame of the roller conveyor; and an output end of the roller conveyor driving motor is connected with the driving shaft. According to the shuttle car, the corresponding number of docking equipment is reduced, and compared with the clearance size of the docking of prior shuttle cars with the roller conveyors, the requirement for plant clearance is small.