48results about How to "Enough resistance" patented technology

An inkjet printhead with nozzles (3), chambers (7) and heater elements (10) formed on an ejection side of a silicon wafer substrate (8) using lithographically masked etching and deposition techniques, and conduits (9) are etched into the reverse side of the silicon wafer (8) opposite the ejection side, the conduits (9) being configured for feeding bubble forming liquid (11) to the bubble forming chambers (7), wherein, the conduits (7) are etched to a depth greater than 100 microns from the reverse side of the wafer (8). Etching the wafer from both sides eliminates ink feed conduits on the ejections side of the wafer. This allows nozzle density to increase. By making the reverse etch deep (greater than 100 microns), the viscous drag will provide enough resistance to substantially prevent reverse ink flow from the bubble in the chamber.

The invention relates to a flexible bionic landing system and application thereof. The flexible bionic landing system comprises a bionic flexible landing device and a connecting device connected to the upper portion of the flexible landing device. The bionic flexible landing device is a flexible body. The connecting device comprises a hollow connecting body and an air compressing device communicating with a hollow part of the connecting body. The flexible bionic landing system is simple is structure, easy to maintain and low in production cost, and adopts a flexible structure design to absorb vehicle body shock generated when an unmanned aerial vehicle lands on complex earth surfaces and improve landing adhesive force; and the unmanned aerial vehicle adopting the flexible bionic landing system can land on the complex terrain environments such as a large-gradient terrain and a high-slipperiness terrain, landing on the complex terrains is achieved, long-time surveillance and earth surface information support are supplied, and the limitation that the unmanned aerial vehicle needs to land on flat and small-slope positions is reduced.

The invention discloses a magnetic control wheel, comprising an internal layer, an intermediate layer and an external layer, wherein, the internal layer is positioned at the innermost layer of the magnetic control wheel, and the intermediate layer is positioned between the internal layer and the external layer. The internal layer is made of the materials including ferrous powder, stone dust and plastic cement, and the intermediate layer and the external layer are made of metal materials, so that resistance is generated when the magnetic control wheel moves in the magnetic field. The magnetic control wheel utilizes the recycled materials, so as to save resources and be beneficial to environment protection; at the same time, as the intermediate layer and the external layer respectively adopts carbon construction steel and aluminum, enough resistance can be generated when the magnetic control wheel moves in the magnetic field, thus ensuring the casting effect.

The invention relates to a downgoing reverse colon inspection device having magnet and "wheat awn" bionic united power. The downgoing reverse colon inspection device comprises a capsule endoscope, wherein a magnetic carrier sleeve sleeves the capsule endoscope, and packages the rear end and the side surface of the capsule endoscope; a plurality of tail whiskers are arranged on the outer side surface of the carrier sleeve, are on the carrier sleeve, and form a gathering effect along an axis of the carrier sleeve; the gathering head end faces the traction direction of the capsule endoscope, so that resistance is formed in the direction opposite to the traction direction; the edge of the tail end of the carrier sleeve is connected with an outer sleeve pipe with a graduation line; the center of the tail end of the carrier sleeve is connected with an inner core; a handle is arranged at the tail end of the inner core; a fixing ring is fixed to the front end of the carrier sleeve; a sliding ring sleeves the carrier sleeve; a spring is connected between the fixing ring and the sliding ring, and is wound on the carrier sleeve; a plurality of upper dragging buttons are symmetrically and fixedly arranged on the outer side surface of the sliding ring; and lower dragging buttons which correspond to the upper dragging buttons are fixedly arranged at the tail part of the pipe wall of the outer sleeve pipe. According to the downgoing reverse colon inspection device disclosed by the invention, the tail whiskers simulate the physical structure of wheat awn, so that the capsule endoscope caneasily reverse in the colon.

The invention relates to a container cell of a container-cleaning machine, in particular bottle-cleaning machine, having a cell interior which is enclosed by a lateral cell surface and is intended for accommodating a container which is to be cleaned.

The invention relates to a novel fore shaft pipe. The problems that rigid round steel pipe are adopted as existing fore shaft pipes, the diameters cannot change along with the widths of continuous walls, the fore shaft pipes need to be prepared according to the widths of the different continuous walls, and adaptability is poor are solved. The novel fore shaft pipe is of a foldable structure overall and comprises a plurality of sections of strip plates with enough thicknesses, and the strip plates are connected through high-strength connecting shafts. Locking devices are arranged between corresponding strip plates. The strip plates are provided with contact planes. The strip plates rotate and adjust to the fore shaft width equal to the width of the continuous wall around the connecting shafts, the strip plates rotate around the connecting shafts, and the closed shape of the end of a wall section is changed. The whole fore shaft pipe forms the foldable structure, the occupied space can be reduced after folding, transport is convenient, the width of the fore shaft pipe can also be changed through folding, thus the fore shaft pipe adapts to building of underground continuous walls of different widths, the width of the fore shaft pipe is adjusted freely, adaptability is good, and the fore shaft pipe is easier to place and can be reused.

The invention discloses a circular stirring system capable of controlling microalgae culture. The system is technically characterized by comprising a control system, a container and a stirring device arranged in the container, wherein a top cover for fixing the stirring device is arranged at the top of the container, the control system is used for controlling the stirring device, the stirring device comprises a motor, a rotating rod, a first rotating blade and a second rotating blade, the first rotating blade and the second rotating blade are mounted on the rotating rod, the second rotating blade is arranged at the bottom of the first rotating blade, the motor is used for driving the rotating rod, the part, close to a shaft end, of the first rotating blade adopts a flat piece structure, the part far away from the shaft end is a reverse screw oblique blade, and the second rotating blade adopts a multi-blade screw structure. The circular stirring system capable of controlling microalgae culture can control a microalgae culture solution to be circularly stirred from top to bottom and from inside to outside.

The invention provides a cylinder body type wrist wrestling training device. The cylinder type wrist wrestling training device comprises a fixed base and a stand column, wherein the stand column is ofa hollow rectangular cavity body; the middle of the stand column is provided with a gear box; large and small bevel gears which are meshed with each other are arranged in the gear box; a holding rodis fixedly arranged at the tail end of a transmission shaft of the large bevel gear; a lead screw is in threaded connection with the inside of a screw hole in the center of the small bevel gear; the lead screw runs through a box body of the gear box and then the two ends of the lead screw are connected with a cylinder body; the cylinder body is an air cylinder or a hydraulic cylinder; and a supporting plate for placing the elbow is arranged under the transmission shaft of the large bevel gear. The damping effect generated by compressing air in the air cylinder or hydraulic oil in the hydrauliccylinder replaces the elastic effects of various elastic objects, the exhaust quantity and the oil quantity are controlled by manually adjusting an exhaust valve or a hydraulic valve of the air cylinder, and proper force is selected to start wrist force training.

A threaded dental implant to be screwed into a jawbone for supporting at least one abutment and / or a dental superstructure, and having a socket arrangement with a first section and a second section with respective geometrical profiles around a longitudinal center axis of the implant. The first section cooperates with the abutment for securing the abutment in a determined position in the implant. The second section cooperates with an insertion tool for screwing the implant into the jawbone. The first section includes an annular coronal contact surface on top of an opening centric at a coronal end of the implant, followed in an apical direction by a first tapered section having a diameter decreasing in the apical direction, by a first cylindrical section, by first anti-rotational elements and by a threaded section.

The invention provides a construction structure and a construction method for a shield to penetrate through an existing shield tunnel in a close range, the construction structure comprises an anti-floating sinking well, a ground cross beam system and a pile foundation, the ground cross beam system comprises a steel truss girder, a working platform and a forced downward pressing device, and the pile foundation comprises pile bodies driven below four corner points of the steel truss girder. And four corner points of the steel truss girder are connected with pile heads, higher than the ground, of the pile bodies. The working platforms are installed on the two sides of the top of the anti-floating sinking well so as to arrange the forced pressing devices, the ground cross beam system is installed on the periphery of the top of the anti-floating sinking well, the ground cross beam system is connected with the pile foundations on the periphery of the anti-floating sinking well, anti-floating reinforcement of the existing tunnel can be achieved, and too large disturbance of construction of a newly-built tunnel to the existing tunnel is avoided. The air niche in the form of an air curtain is arranged on the well wall of the anti-floating sinking well, and is further matched with the blade feet and the working pipes in various forms, so that the sinking posture and speed of the sinking well can be controlled, the sinking well sinks with small soil disturbance and is finally attached to the top of the existing tunnel, and the purpose of controlling floating of the existing tunnel is achieved.

The invention provides a fixed scroll assembly, a scroll compressor and refrigeration equipment. The fixed scroll assembly includes: a disk body on which a compression channel is arranged; an enthalpy increasing channel arranged on the disk body to increase enthalpy The channel is used to communicate with the enthalpy-increasing pipeline of the scroll compressor. The enthalpy-increasing channel includes a plurality of connecting sections, and a first included angle is formed between two adjacent connecting sections in the plurality of connecting sections; the enthalpy-increasing nozzle is arranged on the disc On the body, the enthalpy-increasing nozzle communicates with the compression channel and the enthalpy-increasing channel. By setting the enthalpy-increasing channel to include multiple connecting sections, a first angle is formed between two adjacent connecting sections among the multiple connecting sections, that is, when the refrigerant gas flows between the multiple connecting sections, when the refrigerant gas A certain angle needs to be deflected when entering from one connecting section to another connecting section connected to it, so that it can produce obvious flow resistance to the return flow of refrigerant gas, thereby effectively attenuating the pressure pulsation intensity in the enthalpy-increasing pipeline.

The invention relates to the technical field of rubber manufacturing, in particular to low-density environment-friendly ablation-resistant ethylene propylene rubber and a preparation method thereof. The rubber material comprises the following main components: a base material, a reinforcing material, an ablation-resistant functional material, a flame retardant and other auxiliary agents, wherein the mass percentage range of each component is as follows: 45%-55% of the base material; 25%-35% of the flame retardant material; 5%-15% of the reinforcing agent; 5%-10% of the ablation-resistant functional material and and 1%-5% of other auxiliary agents. The invention provides the low-density environment-friendly ethylene propylene rubber material with excellent ablation resistance, and the ethylene propylene rubber material is prepared by optimizing the formula and matching with the weather-resistant functional material, the flame-retardant material, the reinforcing material and other auxiliary agents. The prepared rubber material is particularly suitable for protecting the internal thermal insulation layer of aviation and aerospace weapons and resisting flame scouring.

The invention relates to the technical field of unmanned aerial photography machines, in particular to an unmanned aerial photography machine with a collision protection mechanism and a maintenance method thereof.The unmanned aerial photography machine comprises a machine body, a buffering mechanism is arranged at the lower end of the machine body, four sets of power rods are arranged on the periphery of the machine body at equal intervals, and connecting bases are installed at the ends of the power rods through connecting mechanisms; a tightening mechanism is arranged on the connecting base, four sets of storage grooves are transversely formed in the connecting base at equal intervals in a surrounding mode, a third movable rod is fixedly welded to the end, away from the power rod, of the connecting base, and the end, away from the connecting base, of the third movable rod is sleeved with a movable block. By arranging the protection frame, the protection frame can shield the outer side of the blade on the power rod, and the special structure of the protection frame is matched with the design of the protruding blocks on the surface of the protection frame, sufficient buffering and resistance can be provided, so that damage to the machine body caused by fierce collision is reduced, and continuous rolling of the machine body can be avoided.

With this synthetic rope, which has multiple layers of load-bearing aramide fiber strands (9, 10, 11) laid together, it is proposed that instead of an extruded protective synthetic sheath as hitherto, only an additional coating (19) of the synthetic fiber strands (4, 5) in the outermost layer of strands (6) with impregnating substance and additives of UV stabilizers, short fibers, oxidation and reduction blockers is applied, and thereby a reliable protection against environmental influences damaging to the rope, as well as an unchanged adequate resistance of the synthetic fiber rope (1) to abrasion, is ensured.

A priority type diverter valve is to make the aperture of the small hole (61) of the damping hole (6) unchanged, cut a cutout (62) on the valve column (2), pass through the cutout (62), and divide into two stages A device that switches the damping effect. For this reason, during steering operation, the joint (62) is not opened to improve the damping effect, while the spool (2) acts on the spool (2) to act on the sufficient holding force required to suppress the oscillation, the joint (62) is opened when moving to reduce the damping effect, The drag resistance of the spool (2) is reduced, and a quick response characteristic can be obtained. The valve can take into account the stability of the steering operation and the fast switching characteristics between the operating states.

A high-efficiency heating device having: a main body comprising an internal cavity in which a heating liquid circulates; a connecting piece communicating with the cavity and extending from the main body; and a front plate having a main outside the front heat exchange surface; the cavity is delimited by a pair of main walls facing each other and a closed peripheral edge connecting the main walls; the cavity has a ratio of surface to volume expressed in dm2 and dm3 respectively greater than or equal to 23.

The invention relates to the field of measurement devices, and discloses a locking assembly of a pneumatic measurement device. The locking assembly comprises a sliding arm, wherein the sliding arm isprovided with a bracket, an air cylinder is arranged on the bracket, a push-pull rod is arranged in the air cylinder, the push-pull rod is provided with a connecting shaft, the sliding arm is providedwith a rotating shaft, the rotating shaft is provided with a rotating arm, the rotating arm is provided with a measuring head, one end of a transmission chain is connected with the sliding arm, and the other end of the transmission chain is connected with the rotating shaft, the transmission chain is bent to one side of the air cylinder, a transmission rod is arranged at the bending position, theconnecting shaft is connected with the transmission rod, a band-type brake is arranged outside the connecting shaft, a holding rod is fixedly connected with the band-type brake, and the holding rod is fixed to the sliding arm; the sliding arm is provided with a supporting block, the end, making contact with the rotating shaft, of the supporting block is connected with an air bag, and the air bagis filled with reserved gas; and in the self-locking process, the resistance between the top end of the holding rod and the connecting shaft is linearly increased until the locking is completed, and the air bag enables the use of the measuring device to be more stable.

A high efficiency heating device (1) has a body (2) comprising an inner chamber (3) in which a heating liquid circulates; connections (16) communicating with the chamber (3) and extending from the body (2); and a front plate (4) having an outer face (9) facing in use the space to heat and defining a main front heat exchange surface (10) of the device (1); the chamber (3) is delimited by a pair ofmain walls (24, 25) facing each other and by a closed loop perimeter edge (7) connecting the main walls (24, 25); the chamber (3) has a ratio between surface and volume, expressed in dm2 and dm3, respectively, greater than or equal to 23.

The utility model relates to a device for performing reverse colon examination in combination with a magnet and a "Maimang" bionic, comprising a capsule endoscope. A magnetic carrier sleeve is arranged in the capsule endoscope jacket. The carrier sleeve covers the rear end and side of the capsule endoscope. A number of tail whiskers are arranged on the outer side of the capsule, and the tail whiskers are on the carrier sleeve, forming a gathering effect along the axis of the carrier sleeve, and the head end of the aggregation faces the pulling direction of the capsule endoscope, thereby forming resistance in the opposite direction of pulling, and the edge of the tail end of the carrier sleeve Connect the outer casing with scale lines, the center of the tail end is connected to the inner core, the end of the inner core has a handle, the front end of the carrier sleeve is fixed with a fixing ring, the carrier sleeve is covered with a sliding ring, and the fixing ring and the sliding ring are connected with a Spring, the spring is wound on the carrier sleeve, the outer surface of the sliding ring is symmetrically fixed with a plurality of upper pulling buckles, and the tail of the tube wall of the outer sleeve is fixedly provided with lower pulling buckles corresponding to the upper pulling buckles. Simulates the physical structure of Maimang, making it easier for the capsule to retrograde in the colon.

Method for the determination of the winder quality of a film roll (10) of a film (30) on a winder roller (20) comprising the following steps: determination of the roll hardness (WH) of the film roll (10) during the winding on of the film (30) on the winder roller (20), determination of a variation from the determined roll hardness (WH) of the film roll (10) from at least one standard value (V1, V2) for the roll hardness (WH) of the film roll (10), determination of the film roll (10) using the determined variation.

The invention provides a static scroll plate component, a scroll compressor and refrigeration equipment. The static scroll plate component comprises a plate body provided with a compression channel; an enthalpy-increasing channel arranged on the plate body, wherein the enthalpy-increasing channel is used to communicate with an enthalpy-increasing pipeline of the scroll compressor, the enthalpy-increasing channel comprises a plurality of connecting sections, and a first included angle is formed between two adjacent connecting sections in the plurality of connecting sections; and an enthalpy-increasing nozzle, which is arranged on the plate body and communicates with the compression channel and the enthalpy-increasing channel. According to the static scroll plate component provided by the invention, the enthalpy-increasing channel includes the plurality of connecting sections, and the first included angle is formed between two adjacent connecting sections in the plurality of connecting sections, that is, when the refrigerant gas flows between the plurality of connecting sections, when the refrigerant gas enters from one connecting section to another connecting section connected to the refrigerant gas, a certain angle needs to be deflected, so that significant flow resistance can be generated to the reflux of the refrigerant gas, thereby effectively attenuating the pressure pulsation intensity in the enthalpy-increasing pipeline.