43results about How to "Reduce the difficulty of erection" patented technology

The invention relates to an attitude testing apparatus and method based on an autocollimator. The apparatus mainly comprises the autocollimator, an optical hexahedron, a double-shaft electronic level meter and a pedestal with a leveling function. The method comprises the following steps: putting the attitude testing apparatus on a firm base, allowing the autocollimator to collimate a reflecting surface of an object, then collimating the optical hexahedron with an autocollimation gyro theodolite and measuring the included angle between the apparatus and a true north azimuth reference; starting the autocollimator for recording and retrieving of continuous data of the attitude of the reflecting surface of the object and starting the double-shaft electronic level meter for recording and retrieving of continuous data of horizontal attitude; and after completion of recording and retrieving of the data, processing the data of the autocollimator and the double-shaft electronic level meter by using a data processing method for the attitude testing apparatus so as to eventually obtain continuous changes of the attitude of the reflecting surface of the object in a geographic coordinate system, thereby meeting demands of continuous absolute measurement.

The invention relates to a monitoring system and an application method thereof. The monitoring system comprises a panoramic camera, a high speed ball camera and a control module, wherein the panoramiccamera is used for collecting panoramic monitoring images of a specified area; the control module is used for acquiring triggering information of any target area in the panoramic monitoring image, generating a control command corresponding to the high speed ball camera according to the triggering information, and sending the control command to the high speed ball camera; and the high speed ball camera is used for collecting the target monitoring image of the target area according to the control command. According to the scheme provided by the invention, the building difficulty of the monitoring system can be reduced, and the development cost and difficulty of the background display control software can also be reduced.

The invention discloses a moving type hangar, which comprises three parts of end doors, a middle main body and an accessory. The main structure of the moving type hangar disclosed by the invention adopts the modular design; the whole hanger comprises end door modules distributed on two ends of the hangar, and multiple groups of middle main body modules, wherein the end of each group of module is provided with a port; except that the end door position is fixed, the rest modules of the hangar can be subjected to unordered mutual connection. The manufacture material of the main structure of the moving type hangar is selected from one or multiple types of PVC (polyvinyl chloride) membrane material, TPU (thermoplastic urethanes) membrane material, EVA (ethylene vinyl-acetate) membrane material, acrylic ester membrane material, neoprene membrane material, butadiene styrene rubber membrane material, ETFE (ethyl tetra fluoro ethylene) membrane material, PVDF (polyvinylidene fluoride) membrane material, PTFE (polytetrafluoroethylene) membrane material and PVF (polyvinyl fluoride) membrane material. The moving type hangar is erected with an inflation method, each group of modules can be respectively curly packaged after venting, and the moving type hangar has the advantages of strong maneuverability, simple operation process, stable and reliable performance, advanced technical index, scientific structural design, cheap and abundant raw materials and mature manufacture technology and is suitable to popularize and apply within a large range in the industry.

The invention relates to an orientation reference mirror which comprises an optical reflection mirror and an optical orientation reference mirror mounting base; the optical reflection mirror is a high-accuracy ridge prism which is installed in a ridge prism mounting base; the upper surface of the ridge prism mounting base is provided with a horizontal reference blister; a cylindrical structure at the rear part of the ridge prism mounting base is installed in a round hole of a mounting plate; a horizontal leveling mechanism on the mounting plate is installed at one side of the ridge prism mounting base; and one end of the mounting plate is articulated on an optical orientation reference mirror mounting base, and the other end of the mounting plate is installed on the optical orientation reference mirror mounting base through an orientation regulating mechanism. The orientation reference mirror provided by the invention is the orientation reference mirror based on the ridge prism, which is reasonable in design, is flexible to operate, and is simple and rapid in orientation and horizontal regulation; and by utilizing the orientation reference mirror, the erection difficulty of an auto-collimation theodolite can be lowered, the efficiency can be improved, and the accurate equipment mounting orientation can be ensured.

The invention relates to an azimuth standard lens based on a roof prism. The azimuth standard lens comprises a mounting base of the optical azimuth standard lens and the high-precision roof prism, wherein the high-precision roof prism is mounted in the mounting base of the optical azimuth standard lens; a cylindrical structure at the rear part of the mounting base of the azimuth standard lens is mounted in a round hole of a mounting plate; a horizontal leveling mechanism on the mounting plate is mounted on one side of the mounting base of the optical azimuth standard lens; one end of the mounting plate is hinged with the mounting base of the optical azimuth standard lens, while the other end is mounted on the mounting base of the optical azimuth standard lens through an azimuth adjusting mechanism; and two azimuth springs are arranged between the mounting plate near one side of the azimuth adjusting mechanisms and the mounting base of the optical azimuth standard lens. The azimuth standard lens based on the roof prism is reasonable in design and flexible to operate. The azimuth and level adjustment of the azimuth standard lens is simple and quick; and the azimuth standard lens can reduce the setup difficulty of an auto-collimation theodolite, improve the efficiency and ensure the accurate mounting azimuth of the device.

The invention discloses an outdoor sun-shading umbrella, which is composed of an umbrella rod, a plastic umbrella surface, a plastic umbrella surface storage device, an inflating device and an umbrella opening controller. The output driving end of the umbrella opening controller is connected to the driving ends of a storage motor and the inflating device; when opening information is received, the storage motor, driven by the umbrella opening controller, can drive the output shaft to do anticlockwise rotation, so that the plastic umbrella surface moves away from the interior of a storage cavity of the plastic umbrella surface storage device and then the plastic umbrella surface is unfolded; and then, the inflating device is driven to inflate the interior of an inflatable umbrella rib cavity, so that the plastic umbrella surface is unfolded. Therefore, the problem that an existing outdoor sun-shading umbrella, when used, is not easy to support, is solved. The outdoor sun-shading umbrella disclosed by the invention is convenient to take along. The outdoor sun-shading umbrella is relatively simple and convenient to fold and unfold. A storage space of the outdoor sun-shading umbrella can be saved. An umbrella body, when not used, can be kept in the umbrella surface storage device, so that corrosion of the umbrella body caused by long-term storage is effectively avoided.

The invention belongs to the technical field of optical fiber cables, and particularly relates to an optical fiber cable and a manufacturing method of the optical fiber cable. The optical fiber cablecomprises a steel strand main body and an optical cable part, wherein the steel strand main body and the optical cable part are connected through a hanging belt. According to the invention, the hanging belt, a steel strand hanging ring, a wavy hanging ring, an annular spring and a hanging connection port are arranged; when a polyethylene outer sheath of the optical fiber cable cracks, the steel strand main body can be prevented from being separated from the optical cable part under the action of the hanging belt, and the pulling of the optical cable part to the steel strand main body is buffered under the mutual cooperation of the wavy hanging ring and the annular spring, so that the self-supporting capacity is indirectly improved, and the problem of damage to the optical fiber cable is avoided; and by arranging the hanging connection port, when the surface of the optical fiber cable is connected and fixed, a hanging connection acting point can be provided through the hanging connection port, a worker can conveniently hang the optical fiber cable, and the erection difficulty is reduced.

The invention discloses a high-strength tensile cable for wind power generation. The high-strength tensile cable for wind power generation comprises a conductor, an insulating layer and an inner protective layer, wherein the conductor is located in the center of the cable, sequentially wrapped by the insulating layer and the inner protective layer in an extruded mode and formed by twisting a plurality of annealed copper wires in the same direction, and aramid yarn is woven outside the inner protective layer and wrapped by an outer protective layer in an extruded mode. Because a metal reinforced layer in the prior art is replaced by the aramid yarn, the tensile property of the cable is guaranteed, the self-weight of the cable is reduced, and the production cost and erection difficulty of the cable are reduced; because the conductor is formed by twisting the annealed copper wires in the same direction, the softness of the cable is improved, the service life of the cable is prolonged, and safety in the use process is guaranteed.

The invention discloses a portable outdoor sun-shading umbrella, which is composed of a telescopic umbrella rod, an inflatable chassis, a plastic umbrella cover, a plastic umbrella cover storage device, an inflating device and an umbrella opening controller. The output driving end of the umbrella opening controller is connected to the driving ends of a storage motor and the inflating device; when opening information is received, the storage motor, driven by the umbrella opening controller, can drive an output shaft to do anticlockwise rotation, so that the plastic umbrella cover moves away from the interior of a storage cavity of the plastic umbrella cover storage device and the plastic umbrella cover is unfolded; and then, the inflating device is driven to inflate the interior of an inflatable umbrella rib cavity, so that the plastic umbrella cover is unfolded; and meanwhile, the inflating device is used for inflating the interior of the inflatable chassis, so that the inflatable chassis is inflated. Therefore, the problem that an existing portable outdoor sun-shading umbrella, when used, is not easy to support is solved. The portable outdoor sun-shading umbrella disclosed by the invention is convenient to take along. The portable outdoor sun-shading umbrella is relatively simple and convenient to fold and unfold. A storage space of the portable outdoor sun-shading umbrella can be saved. An umbrella body, when not used, can be kept in the umbrella cover storage device, so that corrosion of the umbrella body caused by long-term storage is effectively avoided.

An embodiment of the invention provides an air rail train and a control method thereof. The air rail train comprises a body, a train guide rail, an electromagnetic guide rail, one or N pairs of suspended wings, M pairs of balance wings, a data acquisition module and a balance controller, wherein the train guide rail is mounted at the bottom of the body; the electromagnetic guide rail is used for forming a permanent-magnet virtual rail; the one suspended wing is mounted at the top of the body or the N pairs of suspended wings are symmetrically mounted on two sides of the body, and are used forgenerating suspension force perpendicular to a horizontal plane; the M pairs of balance wings are mounted at symmetrical positions on the two sides of the body, and are used for generating balance force which is perpendicular to a vertical plane; the data acquisition module is used for realizing wind force information, at each balance wing, of the two sides of the body in real time; the balance controller is used for determining the rotational speed of each balance wing according to the wind force information, and is used for controlling the rotation of each balance wing, so as to realize thebalance of the body. An air rail of the air rail train provided by the embodiment of the invention is the electromagnetic guide rail, and is easy to erect and divert compared with an air rail erectedby using steel concrete, and the erection and maintenance difficulty is greatly decreased.

The invention relates to a foldable antenna mounting frame for erecting a shore-based antenna of an unmanned ship. The foldable antenna mounting frame is characterized in that: inner ends of a plurality of antenna fixing rods are respectively hinged with an upper mounting table of a central base through a plurality of fixing rod mounting bases; the outer ends of the plurality of antenna fixing rods are fixedly connected with a plurality of antenna mounting sleeves respectively; the inner ends of a plurality of antenna support rods are respectively hinged with the lower mounting table of the central base through a plurality of support rod mounting bases; the outer ends of the plurality of antenna supporting rods are respectively hinged with a plurality of inter-rod connecting pieces, and the plurality of inter-rod connecting pieces are respectively sleeved on the plurality of antenna fixing rods in a sliding manner; an inner pin hole is formed in the middle of each antenna fixing rod, and an outer pin hole is formed in each inter-rod connecting piece; when the plurality of antenna fixing rods are unfolded to a horizontal position, the inner and outer pin holes are aligned, and the positioning pins are inserted, so that the whole antenna mounting frame is in an unfolded and erected state; and when the plurality of antenna fixing rods rotate to the vertical positions around the hinge points, the antenna mounting frame is integrally in a folded state. The shore-based antenna can be rapidly and conveniently erected and is convenient to store and transport.

A fast pin inserting and extracting device is composed of a pin inserting mechanism and a power mechanism. The pin inserting mechanism is composed of an inserting pin seat, a long pin, a shaft seat, a gear shaft and a short pin. The power mechanism comprises a pin tooth ring, a shaft and the like and is arranged on an erected platform. Power is provided for the pin inserting mechanism through the power mechanism to drive the pin inserting mechanism at the end portion of a bridge section to actuate, pin insertion and extraction are performed, and connection and disconnection of bridge spans are achieved. The fast pin inserting and extracting mechanism is utilized to perform connection and disconnection between the bridge joints, personnel remote operation or operation in a safe area can be achieved, erection difficulties are reduced, and danger of erection personnel is reduced.

The invention belongs to the field of power system power transmission and distribution. The invention provides a layered direct-current power transmission system used for transmitting a large amount of renewable energy power generation distributed in different regions to a load center. The system is formed by interconnecting a high-voltage converter station and a plurality of low-voltage converterstations, and the high-voltage converter station is formed by connecting a high-end converter and a low-end converter in series. A direct-current port of the high-voltage converter station is connected to a direct-current port of the receiving-end power grid high-voltage converter station through a direct-current transmission line; the low-end converter of the high-voltage converter station is connected with the direct-current side of one or more low-voltage converter stations through a direct-current transmission line, the alternating-current side of each low-voltage converter station is connected with the alternating-current system of each low-voltage converter station, and the high-end converter of the high-voltage converter station and the alternating-current side of the low-end converter are connected to the alternating-current system where the high-voltage converter station is located. According to the topology, the geographic position of each renewable energy power station canbe arranged more conveniently, alternating current side isolation of each renewable energy power station is realized, and the total capacity of a voltage source type converter in the whole system is reduced.