13 results about "Open tube" patented technology

The utility model relates to the technical field of disconnecting switches, in particular to a static contact for a disconnecting switch, which comprises a static contact and a horizontally arranged feeler lever mounted at the bottom of the static contact, symmetrically arranged mounting blocks are fixedly connected to the outer side of the feeler lever, and reaction components are symmetrically mounted on the sides, away from the feeler lever, of the mounting blocks. According to the utility model, through the arrangement of the mounting block, the reaction assembly, the connecting rod, the baffle plate, the reaction spring, the connecting plate, the contact plate, the conductive plate and the contact semi-open tube, when the device is used, the moving contact extends out and is clamped towards the direction of the contact rod, the contact plate moves to drive the contact semi-open tube to move, the reaction spring is stressed and compressed, and the contact semi-open tube is clamped by the baffle plate. According to the design, the contact area of the moving contact and the feeler lever can be increased, pressure compensation can be automatically carried out between the moving contact and the feeler lever, and unstable contact caused by external factors is avoided.

The utility model belongs to the technical field of medical instruments, and discloses an ampoule bottle opener which comprises a positioning tube, a bottle opening tube and a grinding knife, the bottle opening tube is arranged at the upper end of the positioning tube, the grinding knife is arranged in the bottle opening tube, the outer side end of the grinding knife is connected with a first guide rod, the first guide rod penetrates to the outside of the bottle opening tube, and the first guide rod is connected with a second guide rod. A supporting plate is arranged at the lower end of the positioning pipe, a rotary knob is connected to the bottom end of the positioning pipe, a transmission pipe is connected to the lower end of the supporting plate, a threaded rod penetrates through the transmission pipe, a protection disc is connected to the upper end of the positioning pipe, and a second guide rod penetrates through the outer wall of the upper end of the bottle opening pipe. According to the ampoule bottle opener, the bottle opening pipe is arranged to be matched with the clamping structure, the bottle opening pipe can be pulled to open an ampoule bottle, the upper end of the ampoule bottle opener has a certain length, more labor is saved when the ampoule bottle opener is held by hand, a certain protection effect is achieved, and glass fragments generated when the ampoule bottle is pulled open cannot injure an operator.

A decontamination method for subsurface aquifers having per- and polyfluoroalkyl substances (PFAS) contaminants by injecting gas through a screened well or open tube through a porous media to form buoyant material where the PFAS contaminants accumulate on and / or in the buoyant material and rise to the water table or top of the aquifer with PFAS that desorbs from the buoyant material and concentrates in the shallow groundwater, and extracting or sequestering the groundwater near the water table or top of the confined aquifer and / or collecting the buoyant material for treatment. The method may include treatment of aquifer material consisting of gravel, sand, silt, clay, or fractured geologic media, or combination, and extraction through phytoremediation, groundwater extraction wells, wellpoint systems, or groundwater extraction trenches and include a seal and / or check valve near the water table in the trench to selectively permit water and buoyant material to flow upward.

1. The name of the design product: spin open tube type backwash unit filter. 2. The use of the design product: material filtration. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model relates to a three-roller forming device for a flaring thin-wall open pipe, which comprises a working table, a side plate A fixedly connected to the top wall of the working table, a side plate B fixedly connected to the top wall of the working table, and an automatic separation assembly, the automatic separation assembly comprises a mounting plate fixedly connected to the top wall of the workbench. A stable and smooth sliding rail is provided for the square guide block through the guide rail, the square guide block drives the overturning plate to move and overturn at the same time, then the driving plate is driven to drive the driving rod to be separated from the driving groove, the moving track is that the overturning plate moves rightwards and then overturns, manual repeated operation is not needed, the operation process is simplified, and the working efficiency is improved. A large amount of time consumed by frequently operating the locking bolt is reduced, so that the whole machining process is more coherent, the downtime is greatly shortened, and the production efficiency is improved.

The utility model relates to the technical field of open-tube micro-focus ray tubes, and provides a cathode generating device for an open-tube micro-focus ray tube, which comprises a grid cap, a filament assembly, a grid fixing seat and a high-voltage sleeve, a grid fixing seat is fixedly arranged at the top of the high-pressure sleeve; a lamp filament assembly is arranged on the grid electrode fixing seat; a grid cap is detachably arranged on the grid fixing seat; the grid cap wraps the filament assembly. The lamp filament assembly comprises a lamp filament assembly shell, a lamp filament, a ceramic base and two pole needles. The bottom of the pole needle is connected with a filament pole of the high-voltage sleeve; the pole needle is fixedly connected with the ceramic seat, and the top of the pole needle extends out of the ceramic seat; the tops of the two pole needles are connected with the two ends of the lamp filament respectively. The ceramic seat is provided with a filament assembly housing. And the lamp filament assembly shell covers the lamp filament, the ceramic seat and the pole needle. The lamp filament can be replaced conveniently, and fine adjustment of the position of the high-voltage sleeve is achieved.

The utility model provides an X-ray tube with improved open tube vacuum degree and a rotatable anode target surface, which comprises a cavity, the upper part of the cavity is respectively connected with a molecular pump and a vacuum gauge flange, one end of the cavity is connected with a penetration body assembly flange, the penetration body assembly is connected with a high-voltage cable fixing flange bolt, and the other end of the cavity is connected with a high-voltage cable fixing flange bolt. One end of the cavity is connected with a high-voltage cable fixing flange, the other end of the cavity is connected with an anode plate assembly flange, the anode plate assembly is provided with a water cooling system, a high-voltage cable socket is installed in the cavity, one end of the high-voltage cable socket is connected with the high-voltage cable fixing flange, a grid cap is installed at the other end of the high-voltage cable socket, and a cathode is installed in the grid cap. The utility model has the beneficial effects that the open tube transmission type X-ray source is adopted, and the whole structure is beneficial to improving the vacuum degree, so that the X-ray generation efficiency can be improved, and the service life of the X-ray tube is prolonged; and the rotary anode target surface is adopted, so that the rated power of the X-ray tube and the output intensity and stability of X-rays are improved.

The utility model provides a drainage bottle capable of adjusting negative pressure. The drainage bottle comprises a bottle body, a connector and a negative pressure adjusting device. The negative pressure adjusting device comprises an outer pipe, an inner pipe and a flexible film. The lower end of the outer tube is fixed on the bottle body, the flexible film is arranged in the middle of the outer tube, the inner tube is concentrically arranged in the center of the flexible film, and the inner tube is a tube body with an open upper end and a closed lower end; air holes are formed in the pipe wall of the inner pipe; a fixing plate is concentrically arranged on the inner wall of the lower section, a round hole is further formed in the fixing plate, a sealing ring is arranged on the inner ring wall of the fixing plate, the thickness of the sealing ring is larger than the diameter of the air hole, and when the air pressure of the bottle body ranges from 600 mmHg to 620 mmHg, the sealing ring blocks the air hole. Air pressure in the bottle body is automatically adjusted, the risk of bleeding of a patient caused by overlarge negative pressure and suction is prevented, safety of the device is improved, whether the negative pressure leaks or not can be found in time, suction is convenient, operation is easy, and the negative pressure in the bottle body is easy to control during suction.

This utility model relates to the field of blood collection tube cap removal technology, aiming to solve the technical problems of low efficiency, poor compatibility, and inability to open tubes in batches in existing automatic cap-opening devices. This utility model provides a blood collection tube cap removal machine, including a frame, a lifting rod, a fixed plate, multiple limiting components, multiple clamping components, and a tray. The fixed plate is connected to the top of the frame via the lifting rod. Multiple limiting components are spaced apart at one end of the fixed plate near the tray; the limiting components are rotatably connected to the fixed plate. Multiple clamping components are spaced apart at one end of the tray near the fixed plate; the limiting components and clamping components are arranged opposite to each other. The tray is connected to the bottom of the frame. The blood collection tube cap removal machine provided by this utility model can remove caps in batches simultaneously, and is simple, efficient, and economical to operate.

The utility model provides a kind of powder sampler, belong to sampling equipment technical field.The air inlet of sampling pump is connected with material extractor, the air outlet of sampling pump is connected with the air inlet of storage bottle of storage bottle, the air outlet of storage bottle exhausts waste gas, and material extractor is fixedly fixed with XYZ moving platform by fixator.Material extractor outer tube is open tube at bottom, and material extractor inner tube is closed tube at both ends, and the closed port of trapezoidal round table shape is used at the bottom of material extractor inner tube, a plurality of small holes are arranged on the tube wall close to the bottom of material extractor inner tube, fixator is installed on the outer side of material extractor outer tube, fixator is installed on XYZ moving platform, telescopic cylinder is connected with material extractor inner tube by connecting block, and long slit is arranged on material extractor outer tube for the up-and-down movement of connecting block.The sampler of the utility model can accurately extract sample of material core in some scenes, and is accurately controlled by XYZ moving platform, safe and reliable, especially for micron and nanometer powder material, with great advantage.

Device for receiving heat exchanger tubes (1), comprising a longitudinal profile (2) with several upwardly open tube receptacles (4) extending transversely to the longitudinal axis (3) of the longitudinal profile, wherein each tube receptacle (4) has locking lugs (5) for securing heat exchanger tubes (1) inserted into the tube receptacles (4), characterized in that the longitudinal profile (2) also has several downwardly open tube receptacles (4') extending transversely to the longitudinal axis (3) of the longitudinal profile, wherein the upwardly and downwardly open tube receptacles (4, 4') preferably extend continuously over the width of the longitudinal profile (2).

The utility model discloses a sample tube with a fixable cover opening angle, which relates to the field of consumables for experimental detection and comprises a sample tube body and a tube cover which can be opened and closed in a turnover manner and is provided with an embedded shaft, and the opening angle of the tube cover can be fixed. One end of the sample tube body is closed, the other end of the sample tube body is open, a base used for being connected with the tube cover is arranged on the periphery of the open end of the sample tube body, the tube cover and the base are connected in an embedded mode through an embedded shaft and an embedded position, and the embedded shaft is wrapped by the embedded position. According to the sample tube, the sample tube body and the tube cover are connected in an embedded mode through the embedded position and the embedded shaft, the opening angle of the tube cover can be fixed, the position of the opened tube cover can be kept not to deviate or change without assistance of other devices, design is reliable, use is easy, and use by experimenters is facilitated; and the device is more convenient to adapt to automatic detection equipment for use.

The automatic spacing hanger rail of the present invention comprises: a rail-type hanger rod having a groove formed in the shape of a partially open tube so that a block and a spring can be coupled to the upper part; an automatic spacing block coupled to the rail, fixed by a fixing screw and a spring, supporting a hanger while maintaining a constant spacing between hangers; and a spring coupled between the blocks to maintain spacing by elastic force. The automatic spacing hanger rail of the present invention can automatically maintain the spacing of hangers by utilizing elastic force.