22results about How to "Constant distance" patented technology

The utility model discloses a rewinding machine which comprises a side plate, an unwinding roller, a winding roller used for winding a thin film and a pressing roller which is installed on the side plate in a rotating mode and used for pressing the winding roller, a plurality of passing rollers are arranged between the unwinding roller and the pressing roller, and driving mechanisms are arranged at the two ends of the winding roller. The driving mechanism is used for driving the winding roller to move in the direction close to or away from the pressing roller. The rewinding roller system has the advantage of ensuring that the film is tensioned in the rewinding roller system in the winding process, and the possibility that a film roll is wrinkled during winding is effectively reduced.

The utility model provides a distance-adjustable roller cooling device, which relates to the technical field of roller cooling and comprises an arc-shaped cooling mounting seat, an adjustable connecting piece and a fixed clamping groove seat, an arc-shaped plate is arranged on the inner side of the arc-shaped cooling mounting seat, and the adjustable connecting piece comprises a first connecting plate and a second connecting plate. The first connecting plate is fixed with the mounting base through the fixed clamping groove seat, the second connecting plate is arranged on the outer wall of the arc-shaped cooling mounting seat, a first adjusting groove is formed in the first connecting plate, a second adjusting groove is formed in the second connecting plate, a fastening bolt is arranged in the first adjusting groove, and one end of the fastening bolt penetrates through the second adjusting groove and then is connected with a nut; the fastening bolts are matched with the nuts to connect the first connecting plate and the second connecting plate, and when the roller diameter of the roller is reduced due to abrasion, the arc-shaped cooling mounting seat is adjusted to be close to the roller by moving the mounting position of the second connecting plate on the first connecting plate; and the distance between the cooling nozzle on the arc-shaped cooling mounting seat and the outer wall of the roller is kept constant.

This utility model discloses a flexible suction port for a roving blowing and suction cleaning machine. Its structure includes a suction assembly, a suction port, and an adaptive adjustment mechanism. Through the contact of a roller assembly with the surface of the drafting cover plate, it senses changes in the height of the drafting cover plate in real time and drives the suction port to move along a vertical slide rail, dynamically maintaining a constant distance between the suction port and the drafting cover plate to ensure stable waste absorption. The adaptive adjustment mechanism adjusts the height of the roller support through a strip groove and bolts, and combines stackable weights to dynamically balance the roller contact pressure, adapting to different working conditions. This utility model adopts a modular design; the suction port is fixed by clamps for easy disassembly and maintenance; the weight and number of weights are adjustable, improving pressure control accuracy. Its significant advantages lie in automatically adapting to drafting cover plate deformation and track misalignment, reducing manual intervention, and improving cleaning efficiency by more than 60%. It is suitable for various roving frame equipment and has broad industrial application value.

The invention discloses a solid propellant combustion residue complete collection system and method.The system comprises a combustion chamber shell, an ignition mechanism arranged in the combustion chamber shell, a clamping mechanism, a high-pressure gas cylinder and a buffer gas cylinder, and the high-pressure gas cylinder and the buffer gas cylinder are connected with the combustion chamber shell. The constant pressure in the combustion chamber shell can be realized, and the pressure fluctuation in the combustion chamber shell caused by combustion is effectively reduced; combustion residues generated by combustion of propellant medicine strips and particles dispersed in gas are collected through the collecting liquid and the outlet filter, and the technical problem that complete collection of solid propellant combustion residues is difficult to achieve only through a combustor device is solved. According to the method, the downward moving speed of the push rod is controlled to be equal to the combustion speed of the propellant strip, so that the distance between the propellant strip and the liquid level of the collecting liquid is kept constant, namely, the position of the combustion surface is kept unchanged, and the experiment reliability is further ensured.

The utility model relates to the technical field of plastering tools, and discloses a building construction plastering device which comprises a shell, and a plastering assembly is arranged on the top of the shell. According to the plastering device for building construction, when the mounting plate is in a horizontal state, the shell slightly inclines towards the lower left, so that mortar can flow out through the notch, the rolling wheels roll on the wall surface, then the shell is driven to move on the wall surface, the mortar flows out of the notch and then is ground to be flat by the outer wall of the shell, and the device is kept perpendicular to the wall surface through the supporting effect of the rolling wheels; the constant distance between the notch and the wall surface is ensured, the constant distance enables flowing mortar to be consistent in thickness, so that the effect of uniform plastering is achieved, the problem that the thickness of a mortar layer is not uniform is solved, under elastic deformation of the spring, the push plate is pushed to move towards the notch, then the mortar is pushed to the notch, and plastering on a ceiling is achieved. And the problem of insufficient gravity is solved.

The present invention relates to the field of bow saw machines, specifically a bow saw machine, comprising a bed body; a lifting assembly is provided on the material platform of the bed body, and the lifting assembly can realize up and down height adjustment of the material; a clamping assembly is symmetrically provided on the lifting assembly, and the clamping assembly is used to fix the material on the lifting assembly, and a connecting structure is provided on the clamping assembly; compared with the existing bow saw machine, the bow saw machine designed in the present invention can rotate the original fixed part round bar material, so that the round bar material and the cutting saw cooperate to cut a relatively regular circular groove, and at the same time, the processing efficiency is also improved. During the entire sawing process, there is no need to stop the machine to operate the round bar material, and the number of times that manual labor contacts the running bow saw machine is reduced, thereby improving safety.

The present invention relates to an aircraft in-situ laser cleaning auxiliary tooling, comprising a tooling body, a laser generating component, a support component with a hollow middle portion, and a walking component. A light exit hole is provided at one end of the tooling body, the laser generating component is arranged in the tooling body, one end of the support component is connected to the outer wall of one end of the tooling body with the light exit hole, the other end of the support component is installed with the walking component, and a through hole is provided in the middle of the walking component. The laser emitted by the laser generating component passes through the light exit hole and then irradiates the surface of the cleaning object through the through hole in sequence, and cleans the surface of the cleaning object as the walking component walks on the surface of the cleaning object. The present invention irradiates the surface of the cleaning object with laser, and can be moved on the surface of the cleaning object more conveniently through the walking component, thereby reducing labor intensity. The distance from the light exit hole to the surface of the cleaning object can be ensured to be constant through the support component, thereby achieving a constant cleaning position, improving cleaning efficiency, and ensuring a cleaning effect.

The invention belongs to the technical field of laser cutting machines, and particularly relates to a split type cutting machine and a cutting method.The split type cutting machine comprises a machine frame shell and a round pipe, a machine frame, a guide rod and a workbench are installed in the machine frame shell, a clamping connecting assembly and a cutting assembly are installed on the workbench, and a positioning correcting assembly is installed on the clamping connecting assembly and the cutting assembly in a sliding mode. A circular tube sequentially passes through the clamping disc and the cutting disc under the action of the feeding equipment and drives the pull rod to synchronously move, the pull rod drives the clamping disc to move through the connector, the clamping connecting assembly is connected with the circular tube through the clamping head, and therefore the circular tube and the cutting assembly synchronously move, and the cutting precision of a laser is improved; under the clamping of the clamping head, the round tube between the end of the pull rod and the clamping head is fixed, the laser can completely cut the round tube, and the phenomenon that large burrs are generated at a cutting opening of the round tube due to the fact that the round tube is broken due to the gravity in the round tube cutting process of the laser is avoided.

The present invention relates to the field of code reading technology, and in particular to a code reading device. It comprises a conveying base, the conveying base is fixedly connected with a bracket, the bracket is fixedly connected with a code reader, the conveying base is fixedly connected with a fixed frame, the fixed frame is ball-connected with a swing frame, a first elastic element is arranged between the fixed frame and the swing frame, the fixed frame is fixedly connected with a fixed ring, the fixed ring is sealingly and rotatably connected with an inner ring, and the two cooperate to form a first closed cavity, the inner ring is fixedly connected with a push cylinder, the push cylinder is connected with an adjacent first closed cavity, the push cylinder is sealingly and slidably connected with a first piston shaft, and a second elastic element is arranged between the push cylinder and the adjacent first piston shaft. The present invention drives the swing frame to tilt through two first piston shafts, so that the sliding frame and the sliding column drive the cigarette box to tilt synchronously, thereby changing the code reader's reading angle of the barcode on the cigarette box.

The utility model discloses adjustable building heat preservation performance detection equipment which comprises a limiting mechanism and a measuring scale installed in the limiting mechanism. The limiting mechanism comprises a first handle, a cylinder is fixedly connected to the center of the outer side of the first handle, and a second handle is rotationally connected to the outer side of one end of the cylinder; wherein a through hole is formed in one end of the second handle, a bolt column is arranged in the through hole, and the outer side, close to the second handle, of the bolt column is sleeved with a rubber block; wherein the outer side of one end of the bolt column is sleeved with a gasket, one side of the gasket is connected with the rubber blocks in an attached mode, the other side of the gasket is connected with a nut in an attached mode, the inner wall of the nut is in threaded connection with the bolt column, and by arranging the limiting mechanism, it can be guaranteed that the distance between the two rubber blocks is kept unchanged after an object is measured; therefore, the scales on the measuring ruler are convenient to observe, and the measuring accuracy of the device is improved.

The radiation detector includes: a positioning component having a through-hole for radiation to pass through; a scintillator having an input surface for receiving radiation passing through the through-hole and converting the radiation into scintillation light; a sensor having a light-receiving surface for receiving the scintillation light converted by the scintillator and detecting the scintillation light; and a lens having a lens that images the input surface of the scintillator and the light-receiving surface of the sensor, respectively. The positioning component has a first positioning part for positioning the scintillator by contacting its input surface, and a second positioning part for positioning the lens by contacting one end face of the lens.

The present invention relates to the technical field of composite material gas cylinder detection, and discloses an ultrasonic scanning detection device for composite material gas cylinders, including a rectangular support and a gas cylinder, wherein a stainless steel water tank is fixedly arranged in the rectangular support, slides are fixedly installed on the tops of the front and rear sides of the rectangular support, sliding sleeves are slidably arranged on the two slides, movable arms are fixedly installed on the outer walls of the two sliding sleeves, and the two movable arms are movably arranged on the inner wall of the stainless steel water tank; the stainless steel water tank is filled with water, a part of the gas cylinder floats on the water surface, and a part is immersed in the water, and an ultrasonic sensor is located directly below the gas cylinder, so that the ultrasonic sensor and the gas cylinder can be detected by water coupling, which overcomes the coupling problem of probe contact method detection and improves coupling accuracy. The present invention is novel in design, simple in structure, and has the advantages of high probe coupling degree and high detection efficiency.

The utility model provides a desensitization type load grating sensor, which comprises a protective shell consisting of a sensor bottom plate and a sensor cover plate, an elastic body and a grating protective cover are arranged in the protective shell, the elastic body is connected with an optical fiber leading to the outside of the protective shell, and a grating area of the optical fiber is fixed on the elastic body. The elastomer is fixed on the sensor base plate, and the deformation direction of the elastomer is opposite to the grating deformation direction. The optical grating is simple in structure, has the function of protecting the optical grating when the load is stretched, and can be compatible with desensitization and temperature compensation at the same time.

A display device may be applied to display-related technical fields, and a display device using a micro light emitting diode (LED) is disclosed. A display device using a light emitting diode includes: a wiring substrate in which a plurality of unit pixels are defined; at least one electrode pad disposed in each of the unit pixels to define a plurality of unit sub-pixels; and at least one light emitting diode configured to have an inclination angle and a bonding surface, a side surface of the light emitting diode being inclined to one side at the inclination angle, and the bonding surface being electrically connected to the electrode pad. Two light emitting diodes adjacent to each other are symmetrically arranged with respect to the inclination angle, and a distance between two electrode pads adjacent to each other varies according to a position of the electrode pads.

The present invention may provide a lase notching apparatus comprising: a laser irradiation unit including a first laser irradiating a first beam, a second laser irradiating a second beam, and an optical member which forms paths of the first beam and the second beam; and a control unit which moves a scanner of the laser irradiation unit along a notching line of an electrode, wherein the optical member forms the path of the first beam and the path of the second beam such that a first spot of the first beam and a second spot of the second beam are arranged apart from each other by a first distance on the notching line, and a size of the first spot is larger than a size of the second spot, and the control unit moves a reflective mirror of the laser irradiation unit such that a spot of the second beam follows a moving trajectory of a spot of the preceding first beam.

The invention relates to a side-mounted arc-shaped track redundant freedom degree robot which comprises a clamp, an annular track and a mechanical arm. A base at one end of the mechanical arm is arranged on the annular track through a moving mechanism and can be driven by the moving mechanism to move in the circumferential direction of the annular track. According to the side-mounted arc-shaped track redundant degree-of-freedom robot, the moving mechanism capable of surrounding a pipeline by a circle is adopted for the first time in the field of pipeline welding, the moving mechanism is matched with the annular track to move in the circumferential direction, the mechanical arm is driven to do annular motion around the annular track, and angle changes of mechanical arm joints can be reduced; vibration caused by too high joint speed during welding operation after the mechanical arm is connected with the welding gun is avoided, singular points caused by large-range joint angle change can also be avoided, the welding efficiency is improved, meanwhile, the stability of the robot is improved, and the welding quality is improved.

The present invention discloses a gear surface laser strengthening device and method for a reducer, and relates to the technical field. The gear surface laser strengthening device of the reducer comprises a manipulator arranged on a base plate, and a laser head is arranged on the manipulator, a clamping mechanism for clamping and fixing the gear body is arranged on the base plate, and a mounting plate is fixedly connected to the manipulator, and a support plate is fixedly connected to the side wall of the mounting plate. The gear surface laser strengthening device and method for the reducer facilitates the application of paint on the surface of a single tooth when performing surface laser strengthening on the gear of the reducer, and is more convenient and quick to use. At the same time, the effect of the application is ensured, thereby improving the efficiency and quality of the laser strengthening, and the distance between the laser head and the single tooth is ensured to be constant, thereby ensuring the quality of the laser strengthening; after the laser strengthening is completed, the surface of the single tooth can be reciprocated and cleaned to remove the excess coating on its surface, and is more convenient and quick to use.

The invention belongs to the technical field of flexible mechanical arms, particularly relates to a modular multi-degree-of-freedom flexible mechanical arm, and aims to solve the problems that the flexible mechanical arm needs a fixed base and cannot move after being mounted, the modular multi-degree-of-freedom flexible mechanical arm comprises the fixed base, and a semicircular gear ring is rotationally inserted in the position, close to the middle of one side, of the top of the fixed base; a mounting groove is formed in the position, close to the arc-shaped outer wall of the semicircular gear ring, of the interior of the fixed base, the same rotating shaft is rotationally connected to the positions, close to the middle, of the inner walls of the two ends of the mounting groove, and one end of the rotating shaft penetrates through the fixed base. By arranging the semicircular tooth ring, the height of the flexible mechanical arm can be changed, adjustment can be conducted according to the heights and body types of different patients, it is ensured that medical operation is more accurate and comfortable, the mechanical arm can be prevented from colliding with a doctor, and operation safety is improved.

The rapid overlock device comprises a mounting base, a machine base is fixedly connected to one side of the top of the mounting base, a connecting frame is fixedly connected to the position, located on one side of the machine base, of the top of the mounting base, one side of the connecting frame is fixedly connected with the machine base, and the other side of the connecting frame is fixedly connected with the machine base. The output end of the machine base is fixedly connected with a transmission tooth column, and the end, away from the machine base, of the transmission tooth column is rotationally connected with the inner wall of the connecting frame. According to the rapid overlock device for the flame-retardant and wear-resistant braid, through cooperative arrangement of the first overlock device, the second overlock device, the machine base and the adjusting mechanism, overlock operation can be conducted on the two sides of the braid at the same time, the overlock quality of the braid can be improved, the workload of operators is greatly reduced, the overlock efficiency of the braid is effectively improved, and the practicability is high. Therefore, the production cost of the braid is reduced, and the production requirement of the wear-resistant braid is met.

The present invention provides a lithotripsy basket catheter. The present invention comprises a catheter and a connecting rod type basket arranged in the catheter, wherein a metal connecting rod channel and a contrast agent / guide wire channel are arranged in the catheter, and a first lithotripsy electrode and a second lithotripsy electrode are also arranged inside the catheter. The first lithotripsy electrode, the second lithotripsy electrode, the metal connecting rod displacement channel, and the main body of the injection channel are parallel to each other and do not contact each other. The basket comprises four metal wires, the metal connecting rod, and a basket connecting rod connected to the tail end of the metal connecting rod, and the tail end of the basket connecting rod is connected to a basket handle. The metal wires of the basket of the present invention pass through the side wall of the catheter, so that the distance between the metal wires of the basket is constant, which can avoid deformation of the basket and facilitate the collection of stones; after the basket of the present invention collects stones, the basket is tightened to fix the stones and cling to the lithotripsy electrode at the head end of the catheter. No biliary endoscope is required for assistance, so it is more suitable for primary hospitals, has low cost, and is easy to promote.

The present invention provides a cup-shaped lithotripsy basket catheter. The present invention comprises an outer sleeve, a basket catheter and a snare connecting rod, wherein the basket catheter is arranged inside the outer sleeve, the snare connecting rod is arranged in the basket catheter, the outer sleeve comprises a first pipe section, a second pipe section and a third pipe section which are connected in sequence, the first pipe section is provided with a first lithotripsy electrode, a second lithotripsy electrode and a snare connecting rod channel, and the second pipe section and the third pipe section are provided with a basket catheter. The present invention is inserted into the common bile duct through an ERCP clamp channel, the opening or closing of the cup-shaped basket is controlled by the snare, the basket is released to trap stones, smaller stones can be removed from the common bile duct in diameter, when the stones are larger, the basket is tightened to fix the stones on the lithotripsy electrode of the catheter, the lithotripsy electrode joint is connected to a plasma, microelectrode or holmium laser wire, the stones in the common bile duct are crushed, and then the basket is used to trap the broken stones and drag them into the duodenum.

A display device includes a substrate; a first electrode disposed on the substrate; a pixel definition layer having a pixel opening defined on the first electrode; an emission layer disposed in the pixel opening; a second electrode disposed on the emission layer; an encapsulation layer disposed on the second electrode; a sensing electrode portion and a reflective layer disposed on the encapsulation layer; a first light blocking layer overlapping the sensing electrode portion; and a second light blocking layer overlapping the reflective layer, wherein the reflective layer includes a plurality of recessed portions disposed in an area overlapping the second light blocking layer.