47results about How to "Guaranteed operating space" patented technology

The invention discloses a railway vehicle body chassis structure. The railway vehicle body chassis structure soles the problems that the giant torque force is caused due to the fact that a front-arrangement type vehicle hook mounting hole is formed in the side face of a vertical plate of a traction beam, and no operation space exists for mounting a steering frame traction base. The railway vehicle body chassis structure comprises two chassis edge beams, a chassis end beam and a sleeper beam arranged between the two chassis edge beams, a traction beam, a vehicle hook mounting sectional material and a traction guide beam are arranged between the sleeper beam and the chassis end beam, the traction beam is fixed between the sleeper beam and the vehicle hook mounting sectional material, and the traction guide beam is fixed between the vehicle hook mounting sectional material and the chassis end beam. Traction wing plates are fixedly arranged on the two sides of the vehicle hook mounting sectional material, the traction wing plates are fixedly connected with the chassis edge beams on the corresponding sides, and a jumper box is arranged between the traction wing plates and the traction guide beam. The problems are completely solved by optimizing the structures of vehicle hook mounting sectional material, the traction beam and other components, and the high-intensity performance that a vehicle body can bear 1000 kN of compression loads is kept.

The invention discloses a safety venous indwelling needle with a needleless interface positive-pressure closing valve, comprising a puncture needle, a puncture needle seat and a handle, wherein, the puncture needle is formed into a puncture needle protection assembly by a puncture protection sleeve, a spring, a plunger latch and an escapement clamp; a venous indwelling needle is formed by an indwelling needle soft tube, a puncture needle guide tube, an indwelling needle seat and a sealing plug; a needless interface positive-pressure closing valve is formed by a shell, a piston, a seal ring, a spring, a connecting soft tube and a base; the positive-pressure closing valve and a liquid out plug separated structure do not involve the indwelling needle, are easy to operate, can reduce pain, and avoid the indwelling needle from taking off; the puncture needle protection sleeve can protect the puncture needle before and after the use of the indwelling needle, has the advantages of without added length, small and exquisite volume, good hand feel, accurate control, high puncture precision, and convenience for puncture operation and the like, can automatically retract to protect the puncture needle, can avoid acupuncture injury on medical workers, has positive pressure closing function, can prevent venous blood flowing back and overflowing, prevent blood from being polluted and avoid the blood from forming blocking in the indwelling needle, does not need heparin tube closing and other operation, has needless connection function, and can avoid needle injury, improve working efficiency and protect the safety of medical workers and patients.

A construction method of beam longitudinal bar anchorage for stiffened steel structural column-beam column joints is characterized in that longitudinal bars of stiffened steel structural column and reinforced concrete beam joints are anchored by means of welding and hole cutting and penetrating. The method includes: performing three-dimensional modeling, performing setting-out and modeling on design drawings according to a ratio of 1:1 through detailed design by means of two-dimensional and three-dimensional software such as AutoCAD, optimally arranging the bars according to rules of the detailed design, determining an anchoring mode of the bars and hole positions, and performing editing with AutoCAD or explorer TSSD to make drawings so as to guide field actual construction. The basic rules of the detailed design include simultaneous use of welding and hole cutting, to be specific, hole cutting is optimally performed at the premise of meeting the requirement on section loss rate; beam corner bars are not holed as far as possible; beam-end crossing bars are stacked layer by layer. The method has the advantages that the bars are provided with sufficient welding space, welding quality is evidently improved, welding quantity is reduced, construction speed is increased, and engineering quality is guaranteed.

The invention discloses a fracture area temporary fixation system and a fixation method thereof. The fracture area temporary fixation system comprises a plurality of negative pressure suction nozzles, a fixation plate and negative pressure control connectors, wherein the negative pressure suction nozzles are used for sucking broken bone blocks in a fracture area, the fixation plate is detachably and fixedly connected with the negative pressure suction nozzles, and the negative pressure suction nozzles are communicated with a negative pressure source through the negative pressure control connectors to realize negative pressure control. The broken bone blocks among broken bones are sucked by the negative pressure suction nozzles and uniformly temporarily fixed by the fixation plate until final fixation is finished, temporary fixation is removed by releasing negative pressure, the problem of re-displacement of the broken bone blocks after loosening of a fixer in the conventional surgical process is solved, a plurality of broken bone blocks can be temporarily fixed simultaneously, all the broken bone blocks are fixed in place once, the operation space of an implanted steel plate in a fracture surgery is effectively ensured, manpower in the surgical process is decreased, surgical reduction effects are improved after the steel plate is implanted, and the fixation system is ingenious in design, simple in structure and convenient to operate and can be widely popularized and applied in the clinical fracture surgery.

The invention discloses an operation process for live-line equipotential access of a power transmission line in a river network area. The method comprises the steps of checking the situation of a worksite, checking tools, instruments and materials, checking double names, arranging hanging points on a tower, arranging a transmission rope system, transmitting a pulley block system, enabling an equipotential electrician to enter equipotential, eliminating line defects, enabling the equipotential electrician to get out of the equipotential, enabling the equipotential electrician to sit in a ladder shaped like a Chinese character' shi 'and arranging the tower. The beneficial effects of the invention are that: t step A, reasonable and accurate data can be conveniently provided for erection of ariver network to ensure normal operation of a project step C, tools are convenient to take in and out, step D, a pulley system is ensured to provide enough labor-saving effect, the operation burden ofelectricians is reduced, the erection of wires is facilitated, and in the step A and the step E, the minimum combination gap is ensured to be 5.02 m, so that the pulley system meets the hot-line workcondition, and the operation space of users is ensured.

The invention relates to a multi-section scrotum lens. The multi-section scrotum lens comprises sheath bodies used for endoscopy and treatment. There are at least two sections of sheath bodies. Rubber water bags are arranged between the sheath bodies, every two adjacent sections of sheath bodies are communicated with the space in the corresponding rubber water bag, and the ends, facing to each other, of every two adjacent sections of sheath bodies are each provided with a connecting structure allowing the two sections of sheath bodies to be connected. The multi-section scrotum lens has the advantages that 1, water pressure in the perididymis cavity is maintained, so that the perididymis cavity can be in a full state; 2, water is prevented from entering a tissue space between perididymis and outer skin of the scrotum, subcutaneous tissue oedematous is avoided, and operation space in the perididymis cavity can be maintained easily.

The invention relates to a press plate and outgoing line matching structure for a transformer and an outgoing line method of the press plate and outgoing line matching structure. The press plate and outgoing line matching structure is provided with a press plate and an oil sealing plate, wherein the press plate comprises a press plate body and a cushion block, the press plate body and the cushionblock are connected in a sliding way and in a step abutting mode, and the oil sealing plate is arranged at a lower part of the press plate. The method comprises the steps of separating the press platebody from the cushion block in a drawer mode, and allowing the press plate to expose out of an opened groove; installing an outlet each-layer angle ring and an insulation piece at the groove; inserting the cushion block into the groove for installation after the outlet each-layer angle ring and the insulation piece are completed, and fixing the cushion block by a paperboard pin; installing and fixing the oil sealing plate at a corresponding position of the lower part of the press plate by employing an insulation screw rod and a nut, so that the integral structure is completed. An epitaxial part of an hole of the press plate is separated in a drawer mode, the operation space of the outlet installation angle ring and the insulation piece is also ensured on the premise that the installationsize requirement of a design theory is ensured, operation is facilitated, and meanwhile, the cooling efficiency of a strong oil guide structure of a product is ensured.

The invention discloses a tool special for tower assembling and welding and belongs to the field of tower production. The tool special for tower assembling and welding is characterized by comprising a base, a supporting base plate and a control cabinet. Stand columns are arranged on the supporting base plate, a roller frame base is arranged between the stand columns in the horizontal direction, the two ends of the roller frame base are provided with a drive roller support and a driven roller support respectively, the drive roller support and the driven roller support are provided with guiding wheels fixed by guiding bolts, a drive roller is arranged between the two guiding wheels on the drive roller support, the drive roller is connected with a motor reducing gear, the guiding wheels on the driven roller support are provided with driven rollers, and the two ends of each driven roller are supported and fixed by shaft ends. According to the tool special for tower assembling and welding, operation space can be guaranteed, aloft work is avoided, safety is improved, the coaxiality, parallelism and straightness in the assembling process are improved, and the quality of weld joints is ensured.

Provided a starting device for a vehicular power unit arranged on the opposite side of a drive wheel shaft sandwiching a crankshaft for outputting rotational driving force to a transmission device. The power unit 6 has an engine 19 loaded on a three-wheeled motorcycle 1 for outputting rotational driving force from the crankshaft 26 arranged in parallel to a rear wheel shaft 33 with rear wheels 4L,4R connected thereto, and a transmission 37 for transmitting the rotational driving force of the crankshaft 26 via a counter shaft arranged in parallel to the rear wheel shaft 33. The power unit 6 isstructured by a kick shaft 49 arranged in parallel to the crankshaft 26, a kick arm 50 arranged at the tip end of the kick shaft 49, and a kick starting mechanism 28 for starting the engine 19 by rotating the kick shaft 49 by making the kick arm 50 kick and transmitting the rotation to the crankshaft 26. The kick shaft 49 sandwiches the crankshaft 26 and is arranged on the opposite side of the rear wheel shaft 33.

The invention discloses an automatic flow control method of a perfusion suction system. The perfusion suction system comprises a main control unit, a perfusion device, a suction device, an endoscope sheath and a cavity pressure sensor, wherein a perfusion flow sensor is arranged on a hose of the perfusion device, and a suction flow sensor is provided on a suction tube of the suction device. The automatic flow control method comprises the following steps: S1, presetting at least intracavity pressure, intracavity volume, perfusion flow, suction flow and suction pressure, and then starting to work; S2, at the beginning, the perfusion device starts to work, liquid enters a cavity of a patient through the endoscope sheath, at this time, the suction device does not work, and when one of the intracavity pressure and the intracavity volume reaches the set value, the suction device starts to work; and S3, when one of the intracavity pressure and the intracavity volume reaches the set value, thesuction flow and the perfusion flow automatically enter a synchronous state, namely the suction flow and the perfusion flow are equal. The perfusion flow and the suction flow are in a dynamic adjustment process, the liquid is always flowing, and operation safety is ensured.

The invention discloses an adjustable sliding type abdominal operation incision retractor which comprises an annular base frame, wherein the annular base frame comprises an annular fixing frame and a supporting assembly arranged at the bottom end of the annular fixing frame; and a traction assembly which comprises a plurality of groups of sliding assemblies and traction assemblies, the sliding assembly comprises a sliding seat and a winding mechanism embedded in the sliding seat, the sliding seat is arranged in a sliding rail on the fixing frame in a sliding mode, the winding mechanism is used for winding a traction arm, the head end of the traction arm is connected with a clamping assembly, and the clamping assembly is clamped on the traction assembly. According to the adjustable sliding type abdominal operation incision retractor, the annular base frame and the matched traction assembly used in cooperation with the annular base frame are arranged, so that the position direction and the traction force of the traction hook are effectively adjusted, and the operation view field is fully exposed.

A building mode for elevator installation features that the towing mechanism and the end of steel cable are reasonablly arranged for decreasing the room space and benefiting operation.

The invention discloses a supporting cannula for mouth mirror thyroid surgery. The supporting cannula for the mouth mirror thyroid surgery comprises a supporting cannula body and a laparoscope puncture outfit, wherein the laparoscope puncture outfit is used in cooperation with the supporting cannula body, and in a surgery process, the supporting cannula body is arranged on the laparoscope punctureoutfit in a sleeve mode to play a role in ejecting of the fold collapse position of a thyroid neck, the supporting cannula is characterized in that the supporting cannula comprises a baffle, a connecting cannula and a support cannula, the baffle and the support cannula are arranged at the two ends of the connecting sleeve separately, and the support cannula is arranged to be in a cambered surfaceshape with a radian equal to that of the connecting cannula and is coaxial with the connecting cannula; a cannula inner through hole for allowing the laparoscope puncture outfit to penetrate is formed in the connecting cannula, in the surgery process, the supporting cannula is arranged on the laparoscope puncture outfit in a sleeve mode through the cannula inner through hole; the baffle is arranged on the outer side of the connecting cannula, the tail end of the support cannula is provided with a circular cambered face used for preventing a neck tissue of a patient from being stabbed. The supporting cannula can expose a surgical field and assist in building space, the surgical field and the operation space are guaranteed, and the effect is great.

The invention provides a compressor assembly and an air conditioning system. The compressor assembly comprises a compressor main body (1) and a box body (2), the compressor main body (1) is arranged in the box body (2), a vibration reduction unit is arranged at the bottom of the compressor main body (1), a cover plate (3) is arranged at the top of the box body (2), an elastic piece (4) is arrangedbetween the cover plate (3) and the compressor main body (1), elastic compression is formed at the top of the compressor main body (1) through the elastic piece (4), and elastic support is formed atthe bottom of the compressor main body (1) through the vibration reduction unit. According to the compressor assembly, the overall size of the compressor assembly can be further reduced, and meanwhilethe vibration reduction performance of the compressor is effectively guaranteed.

The invention relates to a NOSES surgical specimen taking-out device which comprises a specimen extruding mechanism, a specimen traction mechanism, a telescopic mechanism and a protective sleeve, a connecting part is rotatably connected to the interior of a fixed end, a first-section external threaded rod is located in a threaded hole of the connecting part and a threaded hole of an external threaded part, and a second-section external threaded rod is located in a threaded hole of an internal threaded cylinder; the end part, extending out of the connecting part, of the first-section external threaded rod is connected with the adsorption end; the specimen extrusion mechanism comprises a plurality of rotating units, supporting strips with rebound resilience are fixed to the two ends of one side of an extrusion rod, mounting holes allowing the supporting strips to stretch in are formed in the two ends of the other side of the extrusion rod, and one end of the extrusion rod is hinged to the fixed end and the rotating end through a first connecting rod and a second connecting rod respectively; according to the anal canal expanding device, a natural orifice is expanded, so that the stress of the anal canal is uniform, the damage to secondary tissues is reduced, and the operation field and the operation space are guaranteed.

The invention discloses a computer room visual management operation and maintenance platform based on the Internet of Things, which comprises a central processing unit as a control hub, the central processing unit is electrically connected with a 3D simulation system, the 3D simulation system is electrically connected with a three-dimensional modeling system, the three-dimensional modeling system is in signal connection with a virtual architecture platform through a local area network, and the virtual architecture platform is connected with the central processing unit. The virtual architecture platform is electrically connected with a background server through a network, the virtual architecture platform is in signal connection with a VR display system, the VR display system comprises a man-machine interaction unit, and the central processing unit is further electrically connected with a security control system, an electrical control system and a space management system. By arranging the space management system and displaying and arranging the collected related data through the three-dimensional simulation system, the equipment space layout and arrangement conditions of the machine room are effectively judged and analyzed, and normal operation and operable space of the machine room are ensured.

The invention discloses a single-layer firing and multi-layer cooling roller kiln. The single-layer firing and multi-layer cooling roller kiln comprises a first lifter, a kiln front material distribution double-layer roller table is fixedly arranged on one side of the first lifter, a mold is placed at the top end of the kiln front material distribution double-layer roller table, a roller kiln smoke exhaust section is fixedly arranged on one side of the kiln front material distribution double-layer roller table, a smoke exhaust pipe is fixedly arranged inside the roller kiln smoke exhaust section, and a roller kiln firing section is fixedly arranged on one side of the roller kiln smoke exhaust section. According to the single-layer firing and multi-layer cooling roller kiln, by means of thearranged first lifter, the mold can be conveniently lifted to be parallel to an upper-layer roller way of the kiln front material distribution double-layer roller table, so that the mold is enabled to sequentially pass through the roller kiln smoke exhaust section, the roller kiln firing section, a roller kiln quenching section, a roller kiln acceleration section, a multi-layer cooling kiln bodyand a kiln tail multi-layer roller table, smoke exhaust treatment can be conveniently carried out on a product in the mold through the arranged roller kiln smoke exhaust section, and firing can be conveniently carried out on the product through the arranged roller kiln firing section.

The invention discloses an A-shaped drilling rig derrick with double racking platforms for construction, and belongs to the technical field of drilling rig derricks. A crown block platform is connected with a derrick main body; the derrick main body is connected with a high-position racking platform, a derrick attachment, a low-position racking platform and an A-frame; the A-frame is connected with a drill floor surface; L1 is a perpendicular distance from the low-position racking platform to the drill floor surface, L2 is a perpendicular distance from the high-position racking platform to the drill floor surface, and L3 is a perpendicular distance from the crown block platform to the drill floor surface. The A-shaped drilling rig derrick with double racking platforms for construction, disclosed by the invention, has the benefits as follows: 1. after one racking platform is additionally arranged, the double-racking-platform structure is used for storage and bearing of a stand column, so as to realize safe operation to a stand column formed by connecting four single stand columns; 2. the drilling rig derrick is used for drilling deep wells and extremely-deep wells, and can reduce stand column connecting and dismounting times, increase the downwards-drilling speed, improve the drilling efficiency, and shorten the drilling cycle; 3. other auxiliary facilities of the drilling rig can be fully used, the drilling rig derrick is reliable, and can save the capital.

The invention discloses an annular traction device for a perineal surgery, which comprises an annular base frame and an auxiliary traction assembly; the annular base frame comprises an annular fixing frame and a supporting assembly arranged at the bottom of the annular fixing frame; the auxiliary traction assembly comprises an drag hook body and a traction assembly; the traction assembly comprises a traction rod and a stand column, the front end of the traction rod is movably connected with a pull rod of the drag hook body, and the middle of the traction rod is movably connected with the stand column and can move in the horizontal direction of the stand column; the bottom end of the stand column makes contact with the skin of a patient, and the top end of the stand column penetrates through the annular fixing frame and then is movably connected with the position, close to the tail end, of the pull rod of the drag hook body through a movable joint; and the stand column is connected with the annular fixing frame through a hand control assembly. The invention provides the annular traction device for the perineal surgery, which can not only meet the traction requirement of the perineal surgery, but also has good traction stability; and meanwhile, the traction direction and the traction force can be quickly adjusted according to the requirements of different patients and in the operation process.