17results about How to "Realize adjustable" patented technology

The utility model discloses a lighting electric appliance convenient to use, and relates to the technical field of lighting electric appliances, the lighting electric appliance comprises a lighting lamp, the lower end of the lighting lamp is provided with an adjusting mechanism, the adjusting mechanism comprises two connecting rings, and the connecting rings are connected to the lower end of the lighting lamp; a pipe head is connected between the two fixing rings; the connecting tightening latch is in threaded connection with the interior of the fixing ring, and the connecting tightening latch is rotationally connected with the interior of the connecting ring; and the transverse extrusion plate is connected to the outer end of the connecting tightening latch. The angle-adjustable illuminating lamp is reasonable in design structure, the angle of the illuminating lamp can be adjusted at will, the angle position of the illuminating lamp can be fixed by further rotating the connecting tightening latch and the rotating ring, it is ensured that the angle of the illuminating lamp is fixed in the using process, and compared with a traditional illuminating electric appliance, part of illuminating lamps can be adjusted at will, and the using cost is reduced. However, in the use process, angle deviation is easily generated due to external force, so that the use experience of a user is reduced.

The application discloses a driving mechanism, a stand column, a transmission device and a flexible tracking support, and belongs to the technical field of photovoltaic power generation. The driving mechanism is used for driving a photovoltaic module installed above a cross beam to track the rotation of the sun, and comprises: a fixed end of a telescopic rod is fixed with the cross beam, and the other telescopic end is connected with a sliding pin; a rotation point of a slide rail relative to the cross beam is fixed; the sliding pin is slidably installed on the slide rail; a rotating shaft of a rotating disc is fixed relative to the rotation point of the cross beam; a far end of a first connecting rod is hinged with the sliding pin, and a near end of the first connecting rod is hinged on an eccentric position of the rotating disc; and a driving piece is used for driving the rotating disc to rotate. The application realizes the cooperative locking of the flexible tracking support with multiple structures, cooperates with three self-locking points, forms multiple protections, greatly improves the anti-deformation capability of the support under extreme wind load, and reduces the safety hidden danger.

The utility model relates to the technical field of wasp breeding equipment, concretely relates to three -dimensional wasp breeding frame of adjustable interval, including left and right two groups of mutually symmetrical vertical beams, mutually symmetrical between two vertical beams in each group, the inside surface of two vertical beams in each group is fixedly installed with a plurality of slide rails, and the top and bottom of four vertical beams are fixedly installed with reinforcing beams, and the detachable installation of support plate is arranged between the two slide rails that left and right face each other, and the end plate body of support plate is located in the slide rail and is connected with the slide rail between sliding, a plurality of nest frames are fixedly installed on the upper surface of support plate, the nest frame part is provided with a protective screen cover, the end part rod body of slide rail is provided with a clamping hole, the outer sleeve pipe is fixedly installed on the front side plate body of support plate, the plug -in limiting rod is slidably connected in the outer sleeve pipe, and the plug -in limiting rod and the clamping hole are inserted and matched. The utility model can adjust interval, has the function of limiting, and is convenient to use.

The utility model discloses a large-load sucker hook, which relates to the technical field of sucker hooks and comprises a bottom plate, a sucker component is arranged on one side of the bottom plate and consists of a main sucker body and a plurality of small sucker cavities, and the small sucker cavities are arranged inside the main sucker body. A negative pressure component is arranged on one side of the sucker component on the bottom plate; a sliding rail is arranged on the side, away from the suction cup assembly, of the bottom plate, a supporting plate is slidably arranged on the sliding rail of the bottom plate, a hook body is arranged on the supporting plate, and a sliding assembly is arranged between the supporting plate and the bottom plate. The device is compact in structure, high in adsorption capacity, high in adaptability, adjustable in hook, capable of automatically returning, stable in load bearing and suitable for various scenes.

The application relates to the technical field of new materials, and discloses a quasi-zero stiffness unit suitable for different tensile loads, a metamaterial vibration isolation structure and a design method, which comprise a first rigid side wall and a second rigid side wall, a positive stiffness unit is arranged in the center of the first rigid side wall, a negative stiffness unit is arranged at the opening of the top of the first rigid side wall, and one end of the second rigid side wall is connected with the vertex of the positive stiffness unit and extends upwards through the negative stiffness unit. The application realizes the regulation and control of the stiffness response of the structure under the action of different loads by parameterizing the design and multi-level combination of the tensile unit configuration and combining the interaction of the positive stiffness and the negative stiffness, the quasi-zero stiffness platform of the structure can be adjusted with the change of the tensile load, so that the stable low dynamic stiffness characteristics of the structure can be maintained within a wide load range, and then the adaptive regulation and control and flexible control of the low-frequency vibration isolation performance are realized.

This application provides an optical system and a laser cutting device. The system includes a first focusing lens, a concave lens, and a focusing lens group arranged coaxially along a first direction. The first direction is the initial transmission direction of the light emitted by the target light source. The optical axis of the first focusing lens passes through the virtual focal point of the target light source. The virtual focal point is the point where the reverse rays of the light emitted by the target light source converge. The distance between the first focusing lens and the virtual focal point of the target light source is greater than the focal length of the first focusing lens. The concave lens is configured to change the distance between itself and the first focusing lens to adjust the aberration of the light emitted by the target light source. As the distance between the first focusing lens and the concave lens in the collimating lens group changes from far to near, the optical system exhibits the following trends: negative defocus beam convergence and tending towards a flat top, positive defocus dispersion and tending towards Gaussianization, then the distribution of positive and negative defocus beams becomes equal, and finally, negative defocus dispersion and tending towards Gaussianization, and positive defocus beam convergence and tending towards a flat top.

This utility model discloses a flotation cell, belonging to the field of flotation cell technology. It includes a cell body and an aeration structure. The cell body has through-slots and locking slots on its left and right sides, respectively. Bottom baffles and top baffles are respectively provided at the bottom and top of the through-slots. The aeration structure includes a connecting pipe, a movable cover, an aeration pipe, and an aeration pump. The connecting pipe is located at the bottom of the cell body, the movable cover is located at the bottom of the outer surface of the connecting pipe, the aeration pipe is located at the bottom of the movable cover, and the aeration pump is located at the end of the aeration pipe furthest from the movable cover. This flotation cell changes the size of the bubbles by altering the length of the aeration pipe extending into the movable cover, thus changing the airflow at the bottom. The combination of porous media, the aeration pipe, the movable cover, and the aeration pump simulates the effect of a flotation column foamer, achieving micro-bubbles during bottom aeration, optimizing the flotation effect, and improving the flotation recovery rate of both oxide and sulfide ores. Bottom aeration allows large mineral particles to contact the bubbles, improving their floatability.

The utility model discloses a hydraulic oil cylinder convenient to assemble, particularly relates to the technical field of engineering machinery, and comprises an oil cylinder body, a rodless cavity and a rod cavity are arranged in the oil cylinder body, a balance valve body connected with the rodless cavity and the rod cavity is arranged on the outer side of the oil cylinder body, and a pair of exhaust pipes is fixedly connected to the outer surface of the oil cylinder body. The pair of exhaust pipes are communicated with the rodless cavity and the rod cavity respectively, each exhaust pipe is provided with an installation assembly, each installation assembly is provided with a pressure measuring connector, the outer side of each pressure measuring connector is provided with an exhaust assembly, and the exhaust assemblies are connected with the pressure measuring connectors; the outer surface of the oil cylinder body is fixedly connected with a pair of oil pipes, the pair of oil pipes are respectively communicated with the rodless cavity and the rod cavity, and the pair of oil pipes are respectively connected with an oil inlet and an oil outlet of the balance valve body; the technical problems that when the telescopic length of the piston rod is adjusted due to assembly of the hydraulic oil cylinder, the assembly workload is large, and the control precision of the balance valve is affected are solved.

The invention relates to the technical field of ecological restoration, in particular to an ecological restoration monitoring method and system for a coal mining subsidence area. Obtaining soil recovery state time sequence information; when the soil recovery state at the end point moment of the time sequence information of the soil recovery state meets a soil target state, the time sequence information of the soil recovery state and vegetation planting parameters are input into a vegetation recovery state prediction network, and the time sequence information of the vegetation recovery state is obtained, the vegetation recovery state prediction network is a black box model constructed based on a long-short term memory neural network; and when the vegetation recovery state at the end point moment of the vegetation recovery state time sequence information meets a vegetation target state, performing ecological recovery monitoring on the soil modification coal mining subsidence area executing the soil modification control parameters by taking the soil recovery state time sequence information and the vegetation recovery state time sequence information as monitoring baselines. According to the method, scientificity and effectiveness of cultivated land protection and ecological restoration of the coal mining subsidence area can be improved.

The application provides a kind of lighting device, belongs to lighting and smart home technical field.It includes: outer pole, cavity is formed in outer pole inside and the first opening is formed in outer pole one end and is communicated with cavity;Inner pole, inner pole is at least partially through the first opening and is set in the cavity of outer pole and inner pole can be driven relative to outer pole sliding;Light source, light source is arranged at the end of inner pole and the position of light source can be changed when inner pole is driven relative to outer pole sliding;Cable, one end is connected on power output part, the other end is arranged in outer pole and inner pole and is connected with light source for power supply to light source;Tensioning assembly, it is used to pull cable to make cable in outer pole and inner pole always in tension state, wherein the tension of tensioning assembly acting on cable is less than the maximum static friction force between outer pole and inner pole.In the application, inner pole can slide in outer pole, which can realize the adjustment of light source illumination area, and wire can be hidden in the pole, wire is not exposed, and the appearance effect is better.

The invention relates to the technical field of rehabilitation training, and discloses a rehabilitation training robot with joint torque feedback, which comprises a shell, a cover plate is fixedly mounted on the left side of the top of the shell, a seat assembly extending to the top of the cover plate is arranged on the inner side of the shell, and two outer boxes are fixedly mounted on the right side of the inner wall of the shell. A supporting seat is fixedly installed at the bottom of the shell, a training mechanism extending to the outer sides of the outer boxes is arranged between the inner sides of the two outer boxes, an adjusting mechanism connected with the training mechanism and extending to the right side of the shell is arranged between the two outer boxes, and a fixing mechanism is arranged at the top of the training mechanism; according to the rehabilitation training robot with the joint torque feedback function, the training mechanism and the adjusting mechanism are arranged, the supporting plate slides along the guide rail, the purpose of adjusting the training intensity is achieved, and the purpose of replacing different models is achieved by arranging the fixing mechanism.

This application provides a green laser, which sequentially includes a pump source, a collimating lens, a focusing lens, a first cavity mirror, a gain medium, a Q-switching element, and a second cavity mirror in a first direction; sequentially includes a third cavity mirror and a displacement motor in a second direction; and sequentially includes a first beam splitter, a frequency doubling crystal, and a fourth cavity mirror in a third direction. The third cavity mirror is located behind the second cavity mirror in the second direction, and the first beam splitter is located behind the first cavity mirror in the third direction. This application achieves adjustable cavity length by moving the third cavity mirror in the second direction through the position of the displacement motor. This allows the green laser to achieve a cavity length suitable for different power outputs by adjusting the cavity length, enabling the same green laser to output multiple power stably and continuously. Therefore, a green laser with precisely adjustable cavity length, compatible with multiple high and low power overlapping stable outputs, high integration, and compact structure is obtained.

The present application belongs to the field of machine tool chip removal device, and relates to a four-direction compatible universal scraper chip removal filtering system and a use method. The system comprises a chip removal machine part, a liquid tank part, a chip collecting vehicle and a packaging part. The chip removal machine part is reversibly installed on the front side or the rear side of the liquid tank part. The overflow port of the chip removal machine part is in communication with the liquid inlet of the liquid tank part. The chip collecting vehicle is arranged below the chip outlet of the chip removal machine part. The liquid tank part is a symmetrical structure and is used for reversible installation of the chip removal machine part, so that the scraper chip removal filtering system is adapted to chip removal filtering work in any one direction of the left front row, the left rear row, the right front row and the right rear row of the same machine tool. The system can realize installation and application of four directions, three heights and twelve configuration forms of the scraper chip removal filtering system, can shorten the development cycle of new equipment, accelerate the product iteration speed, improve the utilization rate of parts, significantly reduce the development, production and maintenance costs, has strong adaptability and can greatly improve the economic benefits.

This invention provides an audio signal gain circuit, an audio system, and a recorder. The audio signal gain circuit includes a switching module, an input resistor module, and a differential amplifier module, each with a high-gain channel and a low-gain channel. The input terminal of the input resistor module is used to receive the original audio signal to be gained, and the output terminal of the input resistor module is electrically connected to the input terminal of the differential amplifier module. The output terminal of the differential amplifier module is used to output the gained target audio signal. The switching module is connected in series with the input resistor module and the differential amplifier module and is used to adjust the actual input resistance of the input resistor module connected to the differential amplifier module. This invention achieves adjustable input resistance, thereby enabling the use of corresponding gain channels in the differential amplifier module to achieve gain processing of audio signals of different formats in different gain channels. While achieving high dynamic range gain processing, it saves hardware consumption, has low cost, and good consistency.

The utility model discloses a laser head subassembly, including fixed base and laser head, the fixed base is provided with the mounting hole of cylindrical structure, the laser head is cylindrical structure, and its one end is used for shooting laser line, its characterized in that, the laser head is installed in the mounting hole and is provided with the activity gap with the mounting hole, the outer cylinder wall of laser head is provided with the annular boss concentric with it, and the circumference of boss at least with the bottom inner wall of mounting hole contacts, the fixed base is provided with first adjusting hole, first adjusting hole with the mounting hole is communicated, and the upper surface of fixed base is penetrated upwards, and the first eccentric axis of first adjusting hole passes through boss, first adjusting hole still is provided with the first adjusting rod of being capable of moving along its axial movement and can at least partially stretch out first adjusting hole downward. In the utility model, the laser head is arranged in the mounting hole of fixed base, and the rotation of laser head is realized through adjusting the first adjusting rod in first adjusting hole, thereby realizing the adjustable of laser head.

The invention discloses an air gap defect thickness regulation and control device for space charge measurement and a regulation and control method of the air gap defect thickness regulation and control device. The air gap defect thickness regulation and control device comprises an aluminum electrode, a piezoelectric sensor is arranged below the aluminum electrode, a to-be-tested sample lower piece is arranged above the aluminum electrode, a rigid partition plate is arranged above the aluminum electrode and the to-be-tested sample lower piece in an overhead mode, and a through test hole is formed in the rigid partition plate; a to-be-tested sample upper sheet covers the upper part; a height-adjustable cross rod driven by a vertical measuring instrument is arranged above the to-be-tested sample upper sheet, a micrometer caliper is arranged on the cross rod, a high-voltage electrode is arranged below the micrometer caliper, the high-voltage electrode is connected with a high-voltage power supply, and the high-voltage electrode is aligned with a test hole of the rigid partition plate. The air gap defect thickness regulation and control device provided by the invention can realize micron-sized quantitative regulation and control of the air gap, and effectively assesses the influence of the micro air gap thickness on space charge distribution.

This utility model relates to the field of bags, and more particularly to a bag with a quick-release shoulder strap, comprising a bag body and a shoulder strap assembly. The shoulder strap assembly includes a first shoulder strap, a second shoulder strap, and a telescopic component. One end of the first shoulder strap is connected to the bag body, and the other end is telescopically connected to the telescopic component. One end of the second shoulder strap is connected to the bag body, and the other end is telescopically connected to the telescopic component. The telescopic component, in conjunction with the first and second shoulder straps, enables the shoulder straps to be adjustable. The separate adjustment design of the different shoulder straps provides users with more adjustment methods. Furthermore, with the telescopic component designed as a decorative structure, its position can be adjusted to meet the user's aesthetic and functional needs.