69results about How to "No need to take up space" patented technology

The invention discloses a steel hydraulic river sluice which comprises a control system and a plurality of sluice gate units. Each sluice gate unit comprises a secondary concrete sluice gate groove, amain anchor bolt embedded part, a sluice gate body, a sensor, an oil cylinder, a swing oil cylinder, a hydraulic system and a limiting switch. All the sluice gate bodies harmoniously move on the whole. According to the river sluice, rising and falling of the multiple sluice gate units are automatically controlled; during outage caused by flooding, hydraulic oil can be pressed back to an oil tankthrough the self-weight of water, and the water level is controlled to achieve safe flood discharge; through the combined-type design, the installation process is simplified, no middle sluice pier isneeded, and maintenance is easy, convenient and feasible; the arc-shaped sluice gate bodies and a stiffened plate can effectively smoothen a water flow; the sluice is supported through the oil cylinders and the swing oil cylinders, and a foundation is simple; no mechanical bearing is needed, no guiding groove is needed so that a water seal cannot be blocked by sand entering of the guiding groove,and no space is occupied by a hydraulic arm; and information collected by the sensors is transmitted to the control system, and the control system sends an instruction to the hydraulic systems to automatically control the oil cylinders to adjust the elevation angles, namely the water retaining heights, of the sluice gate bodies.

The invention discloses a hierarchical monitoring system. A power supply is connected to the first power supply port of the first network camera through a power line. The second power supply port andthe third power supply port of the first network camera are respectively connected to the first power supply port of the second network camera and the first power supply port of the third network camera. A monitoring center network switch is connected to the first network interface of the first network camera through a network line. The third network interface and the second network interface of the first network camera are respectively connected to the first network interface of the second network camera and the first network interface of the third network camera. The second network interfaceand / or the third network interface are electrically connected to a network accessory terminal. The monitoring center network switch is separately connected to a manager video monitor and a manager console. The network accessory terminal comprises at least a entrance guard, a microphone, a iris recognition device, a face recognition device, an intrusion alarm system, a network hard disk recorder,a network alarm and a network interphone.

The invention discloses a noise-reducing and rain-proof drainage hood. The noise-reducing and rain-proof drainage hood comprises a cylinder body. The cylinder body comprises an upper cone cylinder anda lower cone cylinder. Each of the cylinder walls of the upper cone cylinder and the lower cone cylinder comprises an inner cylinder wall body, an outer cylinder wall body and a silencing layer. An open lower cone cap is mounted in the cylinder body. A water guide pipe is connected to the lower end of the lower cone cap. The water guide pipe inclines downwardly, penetrates the cylinder wall of the lower cone cylinder and extends out of the cylinder body. According to the noise-reducing and rain-proof drainage hood, noise enters from an air inlet, the noise is absorbed by a punching slicing plate of the lower cone cylinder and the silencing layer, then rebounded to a punching slicing plate of the upper cone cylinder and the silencing layer and then transmitted out through an air outlet; inthe process, the noise is subjected to multiple times of rebounding, slicing and noise reduction, the noise can be lowered to 50-60 dB, the slicing and noise reduction effects are ideal and meet andexceed the national emission standards, and the noise-reducing and rain-proof drainage hood has the function of eliminating the radiated noise of an air outlet of a chimney; and besides, the hood meets the requirements on ventilation and prevention of invasion of sand and dust blown by wind, rainwater and snow water and has the beneficial effects of being small in size, low in weight, easy and convenient to mount, low in cost and the like.

The invention relates to a bridge wing structure for an ultra-large ore carrier. The bridge wing structure for the ultra-large ore carrier comprises a bridge wing deck (1) which is placed in a transverse direction of a carrier body, wherein a vertical support (3) is fixedly connected under the bridge wing deck; a bridge wing diagonal bracing (2) is fixedly connected between the vertical support and the bridge wing deck; and the bridge wing diagonal bracing, the vertical support and the bridge wing deck form a triangular structure along the transverse direction of the carrier body. An angle between the bridge wing diagonal bracing and the horizontal direction is more than 45 DEG. The bridge wing diagonal bracing and the vertical support are both formed by plate stiffened structures. The bridge wing deck is formed by a double-layer plate in a vertical direction. Through the adoption of the bridge wing structure for the ultra-large ore carrier, provided by the invention, problems that the stiffness of a bridge wing is poor, the fixed frequency of the bridge wing is low and the bridge wing is prone to vibrate due to the overlong bridge wing can be effectively avoided. The bridge wing structure for the ultra-large ore carrier, provided by the invention, has the advantages of very high utilization value and significant using meaning.

The invention relates to a bidirectional dual-circularly-polarized folded transmission array antenna, which is composed of an upper layer of circularly-polarized transflective selective total-space chiral metasurface and a lower layer of circularly-polarized transflective selective total-space chiral metasurface integrated with a planar feed source antenna, and the metasurface is composed of a square array formed by periodically arranging a plurality of metasurface units. The feed source antenna metasurface unit is composed of a planar circular polarization microstrip patch antenna, the metasurface unit comprises three layers of metal structures and two layers of dielectric substrates clamped among the metal structures, the upper metal layer and the bottom metal layer are composed of circular microstrip patch structures of the circular polarization microstrip antenna, the middle metal layer is a metal floor with a hole in the center, and the middle metal layer is a metal substrate with a hole in the center. Metalized via holes for connecting the upper metal layer and the lower metal layer pass through the through holes; the upper-layer metasurface enables right-handed original planned waves incident in the + z direction to be transmitted and reflects left-handed circularly polarized waves. The lower-layer metasurface enables left-hand circularly polarized waves incident in the-z direction to be transmitted and reflects right-hand circularly polarized waves.

The present invention discloses an efficient agent adding system, which contains a PAC adding device and a PAM adding device, wherein the PAC adding device comprises a raw liquid pool, a first raw liquid pump, a first solution mixing container placed adjacent to an agent adding chamber and with an outlet communicated with the agent adding chamber, a first dilution water pump, a first flow meter arranged on the communication pipeline of the raw liquid pool and the first solution mixing container, and a second flow meter arranged on the communication pipeline of dilution water B and the first solution mixing container, and the PAM adding device comprises a dilution device, a second solution mixing container placed adjacent to an agent adding chamber and with an outlet communicated with the agent adding chamber, a solution pump, a second dilution water pump, a third flow meter arranged on the communication pipeline of the dilution device and the second solution mixing container, and a fourth flow meter arranged on the communication pipeline of the dilution water B and the second solution mixing container. Compared with the traditional agent adding system, the agent adding system of the present invention has characteristics of agent utilization efficiency improving, agent consumption reducing, and saving of tap water consumption during the agent adding process.

The invention provides a shipborne bulk material loading and unloading device. The shipborne bulk material loading and unloading device comprises a ship loading device for loading bulk materials on vehicles into a cabin, a collecting device arranged in the cabin, a lifting device arranged on one side of a ship board, a conveying device connected with the lifting device through a rubber hose and an unloading device for loading materials conveyed by the convey device onto vehicles. The collecting device comprises a transmission mechanism and a plurality of scraper blades arranged on the transmission mechanism, the transmission mechanism is formed by steel ropes or chains and a plurality of pulleys, and the steel ropes or the chains form a closed loop and can roll around the pulleys to run and drive the scraper blades to horizontally move. The lifting device is a bucket elevator. The conveying device is a spiral conveyer. The unloading device comprises a stretchable hose connected between the conveying device and a loading opening for vehicles and a plurality of dust removers arranged on other loading openings for vehicles. By means of the shipborne bulk material loading and unloading device, bulk materials can be loaded onto vehicles without occupying additional space of a wharf.

The invention discloses an adjustable bookend, which comprises bookend baffle plates (1), a small groove (2), spring devices (3), pulleys (4) and a wood plate (5). The adjustable bookend is characterized in that the transverse small groove (2) and the spring devices (3) are arranged on the wood plate (5); small wood blocks are arranged at the tail ends of the spring devices (3), and are longitudinally clamped in the small groove (2) to fix the spring devices (3); the pulleys are fixedly arranged below the bookend baffle plates (1) through screws, are clamped in the small groove (2), and can horizontally move. The adjustable bookend has the beneficial effects that the adjustable fixed bookend is simple in structure and convenient to use; the distance between two bookends can be adjusted for fixation according to different requirements, books and the bookend can be moved together without disassembly, and a small space is occupied.

The invention discloses a pressure boosting pipe coiling device, which includes a shell body provided with a pipe outlet. A coiling drum is arranged in the shell body, the two ends of the coiling drumare rotatably connected with the shell body respectively, and a coiling spring is arranged between one end of the coiling drum and the shell body; a hollow cavity is formed in the coiling drum, and apressure boosting pump is fixed in the hollow cavity; a water outlet pipe is coiled on the coiling drum, one end of the water outlet pipe penetrates through the coiling drum to connect with a water outlet of the pressure boosting pump, and the other end of the water outlet pipe extends outside of the shell body through the pipe outlet; and a water inlet of the pressure boosting pump is connectedwith a rotating joint, and the rotating joint is connected with a water inlet pipe. According to the pressure boosting pipe coiling device, the pressure boosting pump is arranged in the coiling drum,sprayed hydraulic pressure is effectively enhanced, and the effect during washing is increased; according to the pressure boosting pipe coiling device, the pressure boosting pump is arranged in the coiling drum, integration of the pressure boosting pump and the pipe coiling device is realized, external spaces of the shell body do not need to be occupied, arrangement is reasonable, and the integralstructure is compact.