74results about How to "Simple operating principle" patented technology

The self-supporting or automatic skin soft tissue dilator consists of dilating bag under the skin, connecting pipe and inflator connected successively. It features the connecting pipe extending from under skin to body surface and with section outside the body connected to an adjustable pressure-limiting valve via a T-union. The inflator is one elastic bag with air inlet connected to a non-return sucking valve and air outlet connected to a non-return outlet valve. The connecting pipe includes two sections connected via a sealing union. The pressure-limiting valve is also connected to a pressure gauge with red warning label beyond 60-80 mmHg area. The present invention is used to dilated under skin and has less pressure fluctuation.

The invention discloses a steam-flooding well network structure for an extra-heavy oil reservoir and an oil extraction method. The well network structure comprises a herringbone horizontal well, at least one straight well and layered steam injection mechanisms. The herringbone horizontal well comprises a vertical section, a horizontal section communicating with the lower end of the vertical section and located on the lower portion of an interlayer, and a plurality of branch sections; one ends of the branch sections communicate with the horizontal section, and the other end of at least one of the branch sections is located above the interlayer; sectioned plugging devices are arranged in the positions, in the interlayer, of the branch sections; the herringbone horizontal well serves as an oil extraction well; the straight wells are arranged close to the horizontal section, serve as steam injection wells and are provided with at least two perforations located on the upper portion and thelower portion of the interlayer correspondingly; and the layered steam injection mechanisms are arranged in the straight wells and enable the perforations to be opened in a perforated mode. Accordingto the steam-flooding well network structure for the extra-heavy oil reservoir and the oil extraction method, the influence of formation heterogeneity on the production effect is avoided, the oil extraction speed and the crude oil recovery ratio are increased, and comprehensive benefits of heavy oil extraction are improved further.

The invention provides a method for detecting the vertical bearing capacity of a pile foundation. When vertical static load detection in vertical bearing capacity of the pile foundation is conducted, the method includes the steps that (1) a detecting part used for detecting the bearing capacity is installed at the top of the pile foundation to be detected; (2) a girder used for detection is installed at the top of the detecting part; (3) one or more lifting parts are arranged on the girder used for detection, and a medium container for weight balancing is lifted through the lifting parts; (4) media corresponding to a required load are injected into the medium container; (5) the detecting part is used for conducting vertical bearing capacity detection. When the method is used for conducting single pile pulling resistance detection, the lifting and weight-balancing mode is also used. The method has the advantages of being simple and convenient to operate, high in safety, wide in application range and the like.

The invention discloses a garbage sorting device capable of cleaning remaining materials on screen cloth. The garbage sorting device comprises the screen cloth. Barriers are arranged on side walls of the screen cloth and include a first barrier, a second barrier and a third barrier, the first baffle and the third baffle are both vertical to and connected with the second baffle the second barrier is arranged between the first barrier and the third barrier, the screen cloth is arranged in an area defined by the first barrier, the second barrier and the third barrier in a surrounded manner and can move in the area, a cleaning system is arranged above the screen cloth, two ends of the cleaning system are respectively connected with the first barrier and the third barrier, and the bottom surface of the cleaning system is in contact with the top surface of the screen cloth. The garbage sorting device has the advantages that the garbage sorting device is simple in structure and operation principle, garbage attached to the screen cloth can be thoroughly cleaned at one step by the designed cleaning system, the screen cloth is prevented from being corroded or deformed, and influence on follow-up garbage disposal is prevented.

The invention discloses a conicity measuring instrument comprising a pedestal, and a fixed rod, a measuring rod and a dial arranged on the pedestal; the dial is provided with a pointer; the pointer is connected with the measuring rod through a link rod in a rigidity manner; the measuring rod is hinged to the pedestal; the conicity measuring instrument is simple in structure, strong in economical property, low in making cost, simple and easy in operation principle, and needs no professional personnel to operate; the conicity measuring instrument is simple and fast in operation, thus improving the conicity measuring efficiency; the conicity measuring instrument is easy to dismount and mount, low in maintenance cost, and easy and convenient in operations.

The invention discloses a minimally-invasive S1 sacroiliac joint screw positioning guider which is characterized by including a sliding guide rail (1), a first positioning rod (2), a second positioning rod (3), an anterior superior spine locating sleeve rod (11), a posterior superior iliac spine sleeve rod (12), an S1 spinous process positioning needle (14), an S1 sacroiliac screw sleeve (7), a first guide buckle (4) and a second guide buckle (5). The positioning guider is universal and easy to operate and control, positioning is achieved through constant rules between bone landmarks, the positioning guider does not change along with postures in operations, operation time is reduced, fluoroscopy times are reduced, and learning curves are reduced.

The invention provides a single-phase oil-immersed transformer which comprises a box body with a box cover, an iron core, coils, radiating tubes and an oil conservator. The iron core is a single-frame double-core column and is arranged at the center of the box body and immersed in oil, the single-frame double-core column is wounded with the coils respectively, the coils are led out of the box cover, leads are respectively sleeved with a high-pressure insulation sleeve and a low-pressure insulation sleeve, the radiating tubes are arranged on the side wall of the box body, and the oil conservator is arranged at the upper end of one side of the box body. The single-phase oil-immersed transformer further comprises a lifting mechanism, a power mechanism and an oil tank, wherein the oil tank is connected with the power mechanism and is arranged outside the box body. The single-phase oil-immersed transformer uses the oil in the box body as a power source through the power mechanism, drives the lifting mechanism to take out the iron core, stores the oil in the box body to the oil tank, facilitates iron core maintenance and oil change operation, saves the cost and also improves the overhaul efficiency.

The invention provides a specific heat radiating device used in an ophthalmologic surgery and a surgery device having the same. The heat radiating device has an aluminum base plate and aluminum heat radiating sheets fixed on the aluminum base plate; and the heat radiating device is installed on a device for a medical ophthalmologic surgery and has a supporting device, a surgery bed and surgery equipment. The supporting device is provided with the surgery bed and the surgery equipment; the surgery equipment has a laser lamp, a laser platform and a cutting laser port; a laser port is formed in the laser platform; the heat radiating device is disposed in the laser platform; and the position of the laser port is corresponding to the position of the laser lamp at a static state. The heat radiating device can effectively maintain constant-speed preheat-radiating process, so excessive heat and coldness can be avoided and no effects can be caused to the surgery process; the device for medical ophthalmologic surgery has compact structure; the surgery device and the surgery device can be directly assembled, so unnecessary troubles can be avoided and surgery equipment can be simplified; surgery cost and preparation time cost before the surgery can be reduced; and the specific heat radiating device used in the ophthalmologic surgery and the surgery device having the same have great promotion value.

The invention discloses a convenient-to-place multi-side charging wireless positioning terminal, which comprises a positioning terminal body, wherein a plurality of charging jacks are arranged in the positioning terminal body and are respectively communicated with the inside of the positioning terminal body, and a plurality of support posts are arranged at the bottom end of the positioning terminal body. The wireless positioning terminal has the advantages that the structure is simple, the manufacture cost is low, the operation principle is convenient, three jacks can be utilized for fast charging the positioning terminal, meanwhile, the jacks can be precisely aligned with an electrode through contact type elastic sheets, the direct contact with the ground is reduced, and the corrosion on the equipment caused by water vapor is avoided.

The invention provides a method and device for marking tubular structure, and the processing terminal of the tubular structure which relates to the technical field of medical technology. On one hand,the method provided by the invention comprises: firstly, extracting a central line corresponding to the image of a tubular structure; acquiring a plurality of central line segments according to the extracted tubular structure center line; secondly, allocating storage positions for each center line segment; so as to respectively carry out area growth on each central line segment and store the designated parameter in the regional growth result to the corresponding storage position so as to carry out the tubular structural marking for each central line segment. The method and device for marking tubular structure provided by the invention can solve the problem that in existing technology tubular structural marking is inaccurate and the marking speed is slow.

The invention discloses a composite depressurization type hydrogen energy source pressure reducing valve which comprises a valve body with a medium inlet and a medium outlet, a needle-shaped valve element is arranged at the medium inlet and provided with a plurality of wedge-shaped throttling channel notches, a first hedging flow channel is formed in the needle-shaped valve element and communicated with the wedge-shaped throttling channel notches through side flow channels, and a second hedging flow channel is formed in the needle-shaped valve element and communicated with the wedge-shaped throttling channel notches through side flow channels. A second hedging flow channel communicated with the first hedging flow channel is arranged in the valve body, a guide cylinder is arranged in the valve body, the guide cylinder is provided with a push rod via hole and a push rod capable of reciprocating, the push rod is provided with a wedge-shaped notch, a cut-off piece is arranged below the guide cylinder, after the push rod moves downwards, a gap is formed between the cut-off piece and the lower end of the guide cylinder, and a lower spring is arranged between the cut-off piece and the second hedging flow channel. The push rod is sleeved with a piston, an upper spring in the valve body abuts against the piston, the valve body is provided with a constant-pressure gas inlet, and the valve body is provided with an adjusting nut acting on the upper spring. The flow resistance is increased, the flow speed is controlled, the pressure is reduced through the needle-shaped valve element of a special structure, the pressure at the medium outlet is constant, and the pressure stabilizing effect is good.

The invention discloses a smart city water affair remote monitoring system and method based on a cloud platform, and belongs to the field of intelligent system control. An existing smart city water affair remote monitoring system has the problems that research and development operation is complex, the development period is long, and the development cost is high. The invention discloses a smart city water affair remote monitoring system and method based on a cloud platform, and the method comprises the steps: data, collected by a control terminal, of water pipe pressure, water pipe liquid level, water flow, an electric valve, and a power supply circuit is acquired and packaged, and then sent out through a communication base station; a OneNet equipment cloud platform receives the data uploaded by the acquisition control terminal, stores the data and forwards the data; and a remote mobile terminal receives the data forwarded by the OneNet equipment cloud platform and performs control. Theurban water affair remote monitoring system and method are simple in operation principle, short in development and low in development cost.

The invention provides a gear tooth profile positioning and milling device for planetary gear speed reducer production, and belongs to the technical field of machining equipment for gear production. The gear tooth profile positioning and milling device for planetary gear speed reducer production comprises a box body, a brake air cylinder, an electric push rod, a milling cutter, a first motor and asecond motor, wherein a driving disc is arranged in the box body, a fixing shaft is fixedly connected to the position, close to the edge, of the front side wall of the driving disc, and a driving rodis arranged in the box body. The driving rod is rotationally arranged on the outer surface of a transmission shaft in a sleeving mode through a driving groove, a transmission plate is connected to the top of a fixing frame in a sliding manner, at the moment, the transmission plate can reciprocate in the left-right direction, the milling cutter fixedly connected with the side wall of the transmission plate is started, a locked component can be milled conveniently, and through cooperation with the first motor, the relative angle between the machined component and the milling cutter can be changed; and compared with traditional equipment, the operation principle of the device is easier to understand, and the components of the device are simpler.

Currently, the working efficiency of enterprises and public institutions is greatly improved through a mobile office system, and some files with high confidentiality and important photos about commercial information can be stored in intelligent devices with office applications. However, once the intelligent devices are lost or the files are stolen by ill-disposed people by various means, the filesare leaked in an unsecure state, and great difficulty can be brought to a user once the files are utilized by immoral people. The invention provides a file quick encryption and decryption method foran Android platform. Through the method, the problem that file encryption efficiency is low in the prior art can be effectively solved.

The invention provides a novel stepping cooling bed, and belongs to the field of metallurgy. The novel stepping cooling bed comprises a fixed frame, two conveying mechanisms, two walking drive mechanisms and a lifting drive mechanism. Fixed teeth are arranged on the fixed frame; the two conveying mechanisms are arranged at an interval along the axial direction of one same side of the fixed frame;moving teeth are arranged on the conveying mechanisms; the two walking drive mechanisms are in transmission connection with the conveying mechanisms and are used for driving the conveying mechanisms to move in a reciprocating way along the axial direction of the fixed frame so as to enable the moving directions of the two conveying mechanisms relative to the fixed move to be opposite; the liftingdrive mechanism is in transmission connection with the two conveying mechanisms and is used for driving the two conveying mechanisms to lift relative to the fixed frame so as to enable the movable teeth to penetrate through the fixed teeth in the vertical direction; and in addition, under the drive of the lifting drive mechanism, when the movable teeth of one conveying mechanism lift up relative to the fixed teeth, the movable teeth of the other conveying mechanism go down relative to the fixed teeth. The device is simple in structure, convenient to install, debug, use and maintain, low in cost, and capable of effectively reducing the equipment manufacturing and operating cost.

The invention provides a controllable elastic security door which comprises a door frame, a framework and an aluminum alloy outer frame connected to the periphery of the framework. The framework is fixed to the door frame. The controllable elastic security door is characterized in that the door frame comprises an inner door frame body and an outer door frame body, the inner door frame body and the outer door frame body are connected through the framework, and a door frame cavity is formed between the inner door frame body and the outer door frame body; a security lock is mounted on the outer side of the outer door frame body, and a security control mechanism is arranged in the position, corresponding to the security lock mounting position, of the door frame cavity, fixed to the inner side of the outer door frame body and connected to the security lock on the outer side of the outer door frame body. Due to the mode that the security control mechanism and the security lock are connected, the security lock can be automatically or manually controlled by the security control mechanism through a security control structure, and security flexibility and feasibility are further improved. The controllable elastic security door has the advantage different from the security thought in the prior art.

The invention relates to furniture joint (1) comprising a first furniture part (5) having a first and a second male part (7, 8), and a second furniture part (6) having a first and a second female part (9, 10). The first and the second male parts (7, 8) each are formed by a dowel (11, 15) extending in a longitudinal direction and having a free end (12, 16). The first female part (9) is formed by a recess (18) having a curved extension between a first end portion (23) and a second end portion (24), said first end portion (23) forming an insertion portion (26). The second female part (10) is formed by a recess (25) having a straight-linear extension between a first end portion (60) and a second end portion (61), said first end portion (60) forming an insertion portion (32). The furniture joint (1) is adapted to be set to a mounting position by moving the first furniture part (5) along the longitudinal directions of said dowels (11, 15) such that the insertion portion (26) of the first female part (9) receives the free end (16) of the dowel (11) and such that the insertion portion (32) of the second female part (10) receives the free end (16) of the dowel (15), and from the mounting position to a locking position by rotating the first furniture part (5) in view of the second furniture part (6) such that the dowel (11) forming the first male part (7) is moved along the curved recess (18) from the first end portion (23) to the second end portion (24), while the dowel (15) forming the second male part (8) is rotated and moved along the straight- linear extension of the recess (25) from the first end portion (60) to the second end portion (61). The first and second furniture parts (5, 6) are in said locking position prevented from being separated in the longitudinal direction of said dowels (11, 15).