267results about How to "Displacement stability" patented technology

The invention concerns a mobile cleaning device suitable for displacing along and cleaning a series of adjacent tilted solar panels aligned in a row and requiring therefor no superstructure fixed to the row of solar panels. The device includes a supporting frame defining a cleaning plane, on which are mounted a cleaning device suitable for cleaning a surface parallel to the cleaning plane, a support device for maintaining the supporting frame substantially parallel to the surface to be cleaned during the displacement of the cleaning device along a row of solar panels; and a guiding device for guiding the displacement of the cleaning device along a row of solar panels. The guiding device includes at least two, preferably at least three, separate guiding wheels, which are aligned along a straight line parallel to the cleaning plane and adjacent to a first edge of the frame. Each guiding wheel is mounted such as to rotate about an axis substantially normal to the cleaning plane and suitable for resting and rolling on the upper edge of the aligned solar panels with the cleaning device in cleaning contact with the surface to be cleaned.

A synchronous guide of a drawer element mounted on a body of a piece of furniture or household appliance via pullout guides. The synchronous guide includes two stationary toothed racks located opposite each other, each toothed rack associated with a side member of the body. Further included are two gear wheels, each of which is mounted on one of the pullout guides, the gear wheels being connected via a coupling rod. The gear wheels are mounted in a stationary manner on running rails of the pullout guides. A piece of furniture or household appliance includes a drawer element mounted on a body of the piece of furniture or household appliance via pullout guide and includes a synchronous guide as described above.

A projection display includes an imager for displaying sub-images in a two-dimensional distribution of sub-areas of the imager and a projection optics array with a two-dimensional distribution of projection optics. The projection optics array is configured to superimpose projections of the sub-images to an overall image in an image plane such that a mutual area overlap of the projections of the sub-images in the image plane in pairs results, which is between 0.1 and 0.8 for all pairs. Here, the projection display is implemented such that the overall image is a virtual overall image.

An acceleration sensor includes a base substrate provided with a first recess part, and a sensor part located on the first recess part and swingably supported in a depth direction of the first recess part by a support part, wherein the sensor part is sectioned into a first part and a second part by the support part, includes a movable electrode part in the first part and the second part, a through hole is provided at least at an end side in the second part larger in mass than the first part, and the base substrate includes a fixed electrode part in a position opposed to the movable electrode part in the first recessed part, and a second recess part deeper than the first recess part is provided in a position opposed to the end side of the sensor part.

A stopper member 54 is fixed to an inner column 3a, and a second displacement preventing protruding portion 57 provided in the stopper member 54 is opposed to a bolt 42 fixed to an outer column 2b. In the case where a load not less than a predetermined value is given from the bolt 42 to the second displacement preventing protruding portion 57, the second displacement preventing protruding portion 57 is deformed and the thus deformed portion is withdrawn into an accommodating recess portion 60 provided in the stopper member 54. A plate spring made of conductive material is elastically pressed to the stopper member 54 and the outer column 2b in the circumferential direction of the outer column 2b.

The invention relates to wire-stripping pliers with an automatic adaptation to various wire gauges and insulation thicknesses that has two pairs of pivotable jaws of which the jaws of the first, outer pair are configured as gripper jaws and are pivotable by means of a first jaw arm and a jaw part about a common point, and the jaws of the other, inner pair are configured as cutting jaws with blades that cut into the insulation, and with a pull rod attached to the cutter jaws and longitudinally moveable within the jaw body providing the stripping motion that is coupled with a second plier arm. At least one sliding wedge is mounted in a recess shaped to match the sliding wedge within the first plier arm or in the jaw part, whereby a first sliding wedge facing the cutting jaws is flat and a second sliding wedge resting in the recess is so shaped that the separation between both sliding wedges at a central area of the sliding wedge diminishes toward at least one of the two sliding wedge ends. Under this configuration, opening the insulation-stripping jaws causes longitudinal displacement of the sliding wedge along with simultaneous matching of position of the sliding wedge perpendicular to the longitudinal direction that results in cutting-depth adjustment of the cutting jaws and the cutting blade attached to it.

A driving device, small in size and light in weight, is to stabilize the position of a surface-deforming element while reducing the effect of gravity thus enabling stable transfer and positioning. The driving device is structured to hold a movable member integrated with a piezoelectric vibrator and a lens by a shaft provided at a tip of a spring extended from an inner surface to center of a passageway. The shaft extends through an opening formed in a protrusion of the movable member. By a tensile force of the spring, the movable member at its outer periphery is pulled radially and held. When applying a voltage with a waveform changing sharply to the piezoelectric vibrator, the movable member flexes maximally upward or downward to have a reduced diameter and an increasing acceleration thereby making a movement. Then, when a frictional force increases, the protrusion is held at a point where the movable member moves. Because of being held by a tensile force, the effect of gravity decreases and hence the movable member is stabilized in position relative to a direction of transfer.

An electromagnetic suspension system comprises a universal joint mechanism for permitting radial movement of a cylinder relative to a center yoke while preventing axial movement of the cylinder relative to the center yoke. Since the cylinder is capable of radial movement relative to the center yoke, if a lateral force acts on the cylinder, the lateral force acting on a hydraulic damper does not have any significant effect on the center yoke 17, with respect to radial movement or rocking movement thereof. Therefore, excessive sliding friction does not occur in a center-yoke dry metal and a piston-rod dry metal, thereby ensuring smooth axial relative displacement between the center yoke and an outer yoke.

Disclosed is a structure which does not lead to increased height, which prevents a steering column (6a) from falling even if during second impact the steering column (6a) is displaced in the forward direction, and which, notwithstanding, ensures the function which allows smooth displacement of the steering column (6a) in the forward direction during second impact. The disclosed steering column support device is provided with a non-falling side bracket (45) fixed to the vehicle body, and a pair of bolts (47), a pair of support capsules (16a), and a falling side bracket (46) supported by the steering column (6a). During second impact, the supporting force of the support capsules (16a) against the non-falling side bracket (45) is lost, and the steering column (6a) is displaced in the forward direction along with the bolts (47) and support capsules (16a) and the falling side bracket (46), but the steering column (6a) does not fall off the non-falling side bracket (45).

The invention discloses a slicing device capable of adjusting the thickness. Spring sets are arranged among a plurality of cutter bases. The cutter bases located at the two ends are connected with a thickness adjusting device through pull ropes. The cutter bases are fixedly provided with blades through connecting screws, and the cutter bases are further connected with a reciprocating lifting driving device. Material base plates are arranged at the positions opposite to the blades. In the thickness adjusting device, lead screws are borne on bearing bases fixedly arranged on an adjusting base, nuts are in threaded connection with the lead screws, and the nuts are fixedly connected with the pull ropes. The lead screws are provided with adjusting heads or motors used for driving the lead screws to rotate. According to the slicing device capable of adjusting the thickness, the distance among the blades can be conveniently adjusted by arranging the thickness adjusting device, and therefore the thickness of cut materials can be adjusted.

A guide bush includes a plurality of bush elements combined to form a cylindrical shape as a whole. The plurality of bush elements includes a cylindrical fitting portion. The cylindrical fitting portion is fitted in a fit-and-hold portion of a housing, and has an inner peripheral surface configured to guide an outer peripheral surface of a displacement shaft that has been inserted in the cylindrical fitting portion in an axially displaceable manner. The diameter of the circumscribed circle of the plurality of bush elements in a state in which the end faces of the plurality of bush elements with respect to a circumferential direction abut each other is not greater than the inside diameter of the fit-and-hold portion.

The invention provides a drainage device for a coal bed gas well electric submersible centrifugal pump, which is applied to the technical field of coal bed gas mining. The device is characterized in that a pressure sensor and a well head flow governor are fixed on an outlet line of liquid; the lower end of an oil pipe is connected with the outlet end of the electric submersible centrifugal pump; and the inlet end of the electric submersible centrifugal pump is connected with a motor of a drainage pump and a gas-liquid separator. The invention has the effects that (1) drainage function with large pump lift and low delivery capacity can be realized through intelligent control; (2) the gas-liquid separator can prevent soot from entering the electric submersible centrifugal pump, and can effectively realize that the coal bed gas is separated from water, thereby ensuring efficiency and stability of centrifugal pump operation; (3) an underground liquid level indicator can monitor height of an underground liquid surface in real time, thereby monitoring the effect of coal bed gas technology realization on one hand, and ensuring safe and stable operation at a high speed of the electric submersible centrifugal pump on the other hand; (4) under comprehensive effects of a controller, the flow governor, the underground liquid level indicator and the electric submersible centrifugal pump, technology of 'fixed-flow drainage' and 'fixed-liquid level drainage' needed in the process of coal bed gas exploitation can be realized.

An optical deflector includes a supporting member, a first movable element having a light deflecting element, at least one second movable element, at least one first torsion spring configured to support the first and second movable elements, for torsional oscillation about an oscillation axis, at least one second torsion spring configured to support the second movable element and the supporting member, for torsional oscillation about the oscillation axis, and a driving system configured to apply a driving force to at least one of the first and second movable elements, wherein a moment of inertia of the second movable element with respect to the oscillation axis is larger than a moment of inertia of the first movable element with respect to the oscillation axis, and wherein a length of the second movable element in a direction perpendicular to the oscillation axis is equal to or less than a length of the first movable element in a direction perpendicular to the oscillation axis.

A compact position sensor with high operational reliability is provided. This sensor has a tubular detection coil, a magnetic core movable in the detection coil, a drive circuit for the detection coil, a signal processing circuit for converting a change in impedance of the detection coil into an electric signal, and a guide means for guiding a movement of the magnetic core in the detection coil. The guide means has a guide portion connected to the magnetic core and a support portion for slidably supporting the guide portion. The magnetic core can be smoothly displaced in the detection coil without contacting an inner surface of the detection coil by a sliding movement of the guide portion relative to the support portion.

The invention provides a method for increasing the oil recovery rate through a self-generation carbon dioxide system after polymer flooding. The method for increasing the oil recovery rate through the self-generation carbon dioxide system after polymer flooding comprises the step that the self-generation carbon dioxide system and spacer fluid are injected into an oil well after polymer flooding. The self-generation carbon dioxide system and the spacer fluid are alternately injected into the oil well multiple times. According to the method for increasing the oil recovery rate through the self-generation carbon dioxide system after polymer flooding, various yield increasing principles are combined, and various technical problems are effectively solved; (1) decompression and injection augmenting effects are achieved, specifically, alkaline blockage relieving and acid blockage relieving of zones near a water injection well are achieved by injecting chemical solutions into the water well, and thus the decompression and injection augmenting effects are achieved; and (2) a heat releasing effect is achieved, so that the viscosity of crude oil is decreased, and the oil displacement efficiency is improved.

The present invention provides an air spring which improves buffer performance in air discharging through effectively performing elasticity of a stopper component. The air spring (1) is provided with the following components: an outer cylinder (11), a lower panel (12), a diagram (13), a rubber lower board (15), a built-in stopper component (16), and a stopper component metal part (17). A second opposing surface (12a) of the lower panel (12), which opposes the outer cylinder (11), is provided with a guiding part (12b). The guiding part (12b) is projected in the main load direction and opposes the stopper component metal part (17) in a direction that is vertical to the main load direction. At least one surface in a stopper component outer surface (17a) of the stopper component metal part (17), which opposes the guiding part (12b), and a guiding part inner surface (12c) of the guiding part (12b), which opposes the stopper component metal part (17), has reduced dynamic friction coefficient.

A piezoelectric actuator includes: a piezoelectric layer formed by a film formation method so as to have orientation in a prescribed orientation direction; and a pair of electrodes, disposed on a same surface which is substantially perpendicular to the orientation direction of the piezoelectric layer, for applying to the piezoelectric layer an electric field in a direction substantially perpendicular to the orientation direction.

A camera module having a macro switching function which can be switched between a normal photographing and a macro photographing is provided. The camera module includes a housing; a lens unit having at least one leans; a lens holder which houses the lens unit therein and is displaceable between a first position and a second position along an optical axis direction of the lens unit; a first magnetic member provided on the holder at the side of the first position; a second magnetic member provided on the holder at the side of the second position; a coil wound around the holder and provided in a close vicinity of the first magnetic member; a yoke which constitutes a part of or an entire of the housing, the yoke having a first portion provided at a position that faces the first magnetic member and a second portion provided at a position that faces the second magnetic member; a magnet provided on the yoke in a state that a space is left between the coil and the magnet; and an image pick-up device provided below the lens unit.

The invention provides a socket, which comprises a pressure plate, two protective doors and a plug bush, wherein the two protective doors are arranged at the upper part of the pressure plate; the plug bush is arranged at the lower part of the pressure plate; when a plug is inserted, the protective doors move to open, so that the plug is inserted into the plug bush at the lower part of the pressure plate; a mounting and fixing structure is arranged between the two protective doors; a limiting structure is arranged on the pressure plate; limiting parts corresponding to the limiting structure are arranged on the two protective doors; the two protective doors are arranged into the pressure plate through the mounting and fixing structure when mounted; and the limiting structure on the pressure plate corresponds to the limiting parts of the two protective door to limit the two protective doors. The mounting and fixing structure is arranged between the two protective doors; the two protective doors are arranged together; and the limiting structure is arranged on the pressure plate for limiting and fixing the limiting parts of the two protective doors, so that the fixed structure of the protective doors in the pressure plate is stable and reliable; the protective doors do not easily turn over to fall off when automatically assembled; and the automatic degree is high.

A camera module includes a lens unit which constitutes an optical system of the camera module; a holder which houses the lens unit and is displaceable along an optical axis direction of the lens unit; a coil provided on the holder; a yoke and magnets provided on the yoke for providing a magnetic field to the coil; a flexible printed circuit board to which the lead wires are connected for supplying an electrical current to the lead wires, the flexible printed circuit board having an insulating sheet portion and a pattern portion; a leaf spring for supporting the holder so that the holder is displaceable along an optical axis direction of the lens unit; a base for supporting the holder when no electrical current is supplied to the coil; and an imaging element provided below the lens unit. In the camera module the leaf spring biases the holder toward the base when no electrical current is supplied to the coil, the holder has a lower cylindrical end portion which is supported by the base, and the base has a support member which supports the lower cylindrical end portion of the holder and a protruding height adjusting mechanism which is capable of adjusting a protruding height thereof from the base.