257results about How to "Few structural parts" patented technology

The invention relates to a sealing assembly for sealing a rolling bearing, in particular a wheel bearing, between a first (30, 32) and a second bearing part (32), wherein both bearing parts are rotatable relative to each other and form both an axial intermediate chamber (61) and a radial intermediate chamber (60) in relation to a common axis of rotation, wherein the sealing assembly comprises the following: a contact part (14, 24) having a preferably hollow-cylindrical fastening piece (37, 40) for fastening and a ring-shaped contact piece (41, 43) for positioning the contact part on the second bearing part, and a carrier (39, 45) which can be fastened to the first bearing part, having an elastic part (13, 23) forming a first axial sealing lip (17, 29) and / or a radial sealing lip (19, 36). The teachings according to the invention show how the service life and the sealing performance can be increased cost-effectively. According to the invention, the contact part forms a first catch channel (12, 22) with a radially extending part of the second bearing part, wherein an end piece (34, 44) of the contact part partially defines an opening 50, 51 which leads into the first catch channel. It is thus possible according to the invention to establish a labyrinth seal as a pre-seal which contributes to sealing without additional friction losses.

The invention belongs to the field of a compliant mechanism and relates to a zero-pivot and large-corner crossed reed type flexible hinge. The zero-pivot and large-corner crossed reed type flexible hinge at least comprises a left external rotary part (1), a right external rotary part (2), a rigid middle part (3), a left crossed reed (4) and a right crossed reed (5), wherein the left crossed reed (4) and the right crossed reed (5) are arranged in a manner that crossed lines are collinear; the reed arraying manner of the right crossed reed (5) and the reed arraying manner of the left crossed reed (4) are symmetrical along the crossed lines; the upper end or the lower end of the left crossed reed (4) is connected with the left external rotary part (1), and the lower end or the upper end of the left crossed reed (4) is connected with the rigid middle part (3); the upper end or the lower end of the right crossed reed (5) is connected with the right external rotary part (2), and the lower end or the upper end of the right crossed reed (5) is connected with the rigid middle part (3); the left external rotary part (1) and the rigid middle part (3) are connected through the left crossed reed (4) to form a left flexible hinge; the right external rotary part (2) and the rigid middle part (3) are connected through the right crossed reed (5) to form a right flexible hinge; and ideal rotary central shafts of the left flexible hinge and the right flexible hinge are coaxial.

The invention discloses a square rigid cable dome structure. Rigid members form mutually vertical grids and are positioned on a convex hyperboloid; boundary ring beams are arranged at the peripheries of the grids; vertical brace rods perpendicular to the ground are arranged under grid nodes of the rigid members on horizontal symmetric axes and vertical symmetric axes as well as grid nodes of the peripheral rigid members; oblique cords are connected between the network nodes of the horizontal symmetric axes and the vertical symmetric axes and the lower ends of the adjacent inside vertical brace rods; oblique cords are connected between nodes of the boundary ring beams and the rigid members and the lower ends of the adjacent inside vertical brace rods; square down string-nets are formed among the lower ends of the vertical brace rods on the horizontal symmetric axes and the vertical symmetric axes; down string-nets are connected among the adjacent nodes of the lower ends of the peripheral vertical brace rods; and four corners are provided with down string-nets. The square rigid cable dome structure is concise in structural form and excellent in stress performance, has improved bearing capacity and stability compared with beam string structures with same span and rise-span ratio, is gentle in deformation, and saves the space at the same time.

The invention discloses a turbofan postpose type engine, aiming to solve the problems of difficult design, high cost and the like in the prior art and comprising a turbojet engine, a converter and a fan, wherein the turbojet engine is used for providing power; the converter is installed on a gas vent behind the turbojet engine and is used for converting the jetting power of the turbojet engine into rotary power; and the fan is connected on a free turbine power output shaft behind the converter. By adopting the above fan postpose type structure, the designs of the fan and the turbojet engine are separated, the whole design is simple, the structure components are few, the weight is light and the processing manufacturing is easy; and the structure can be manufactured into a turbofan engine, thus improving the thrust-weight ratio greatly.

The invention discloses a backlight module and a display device. The backlight module includes: a back plate including a bottom plate, side plates arranged around the bottom plate, and a bent portionformed by bending the side plates, wherein the bottom plate, the side plates and the bent portion form a mounting space, the side of the bent portion opposite to the bottom plate is provided with a limiting step, and the bent portion includes upper and lower step faces connected to the limiting step; a reflector that is received in the mounting space and arranged on the bottom plate; a light guideplate received in the mounting space and arranged on the side of the reflector opposite to the bottom plate; a membrane received in the mounting space and arranged on the side of the light guide plate opposite to the reflector; and a display panel covering an opening of the mounting space and connected to the lower step face. The backlight module is simple to assemble and low in cost and has variable appearance.

The invention relates to a charger and a wire collection structure enabling single-side wire pulling operation. The wire collection structure includes a bottom box, an inner core, a spiral spring, a cover plate and a self-locking rod; the bottom box is provided with an open end; the bottom of the bottom box is provided with a convex shaft; the convex shaft is provided with a first clamping groove; the side wall of the bottom box is provided with a wire guide hole; the inner core is accommodated in the bottom box; the inner core is provided with a fixing column a well as a first fixing plate and a second fixing plate which are arranged at two ends of the fixing column; a through hole is formed in the fixing column; the cam shaft passes through the through hole; the fixing column is provided with a second clamping groove; one end of a cable is inserted into the bottom box and is wound around the outer side of the fixing column; the first fixing plate is provided with an inner annular groove, a transition groove and an outer annular groove; a dead point position is arranged between the inner annular groove and the outer annular groove; the spiral spring is accommodated in the through hole; two ends of the spiral spring are clamped in the first clamping groove and the second clamping groove respectively; the cover plate is arranged at the open end; and the self-locking rod is provided with a first end which is rotationally arranged on the cover plate and a second end which can move in the inner annular groove, the transition groove and the outer annular groove. The wire collection structure can realize single-side wire pulling operation.

The invention discloses a backlight module which comprises a back board, a reflection piece located on the back board, a glass substrate located on the reflection piece and a backlight source arranged on one side of the glass substrate, wherein one side of the glass substrate facing the reflection piece is provided with an optical network point structure layer, the other side of the glass substrate is a light emergence face. A first polarizer is further arranged between the backlight source and the glass substrate, light emitted by the backlight source passes through the first polarizer to form polarized light and enters the glass substrate, and the polarized light is reflected by the optical network point structure layer and then is conducted out of the light emergence face. The backlight module does not use a light guide plate, so that the cost of the backlight module is reduced. The backlight module can further improve the light source utilization rate and product quality. The invention further discloses a liquid crystal display including the backlight module.

The invention relates to a semi-physical simulation cockpit, and belongs to the technical field of digital performance and simulation. The semi-physical simulation cockpit comprises a base component group, a U-shaped rack component group, an operating room component group, a key shaft component group and a U-shaped shaft component group. By adopting the semi-physical simulation cockpit, full-freedom degree rotation in two angles can be achieved, posture of manned cockpit such as fixed wing aircrafts, rotor crafts, special vehicles and rocket equipment can be simulated in angle posture, and a user can be supported to engage and complete relevant simulation training processes. The semi-physical simulation cockpit is small in structural component amount and low in connection complexity degree, the cost of a simulation cockpit is greatly lowered, spatial feeling which cannot be simulated by a conventional simulator can be further simulated, the movement process of a flying posture machine can be relatively vividly simulated, the simulation cockpit can be miniaturized, and conditions are provided for simulators used in the civil application market.

The invention provides a terminal having an audio communication function and a method for picking up a sound signal thereof. The terminal comprises a shell, a circuit board arranged inside the shell, and a USB (Universal Serial Bus) slot formed in the shell, wherein a main microphone unit and a noise-reducing microphone unit are fixed on the circuit board; a cavity component is arranged outside the main microphone unit; the circuit board, the cavity component and the shell form the additional cavity of the main microphone unit in a cooperative manner; a communicating structure is arranged between the additional cavity and the USB slot; the communicating structure forms a sound inlet channel of the main microphone unit; the shell is provided with a preserved gap which forms a sound inlet channel of the noise-reducing microphone unit. By using the terminal having the audio communication function, the internal space of a product can be saved, a small number of structural parts are used, a microphone can be placed flexibly, and high acoustic performance is realized.

The invention relates to a multi-degree-of-freedom multi-scale soft body grabbing device, which comprises a mounting platform, a crankshaft assembly and at least three sets of finger assemblies. The crankshaft assembly comprises a crankshaft, a driving gear connected with the crankshaft, and a driving motor, the crankshaft comprises at least three connecting shafts, and hinging shafts located on the different sides of the connecting shafts are arranged at the two ends of the connecting shafts correspondingly; and each finger assembly comprises a sliding block assembly, a finger located on thelower part of the sliding block assembly and a connecting rod connected with the sliding block assembly, one ends of the connecting rods are hinged to the sliding block assemblies, the other ends of the connecting rods are hinged to the hinging shafts, one ends of the fingers are connected with the sliding block assemblies, the other ends of the fingers penetrate through strip-shaped penetrating holes in the mounting platform, each finger comprises a limiting layer and strain layers located on the inner side and the outer side of the limiting layer, and the elasticity of the strain layers is higher than that of the limiting layers. The multi-degree-of-freedom multi-scale soft body grabbing device is high in adaptability, simple in mechanical structure, low in cost and easy to control.

The invention relates to a sample extraction pool device, in particular to a mild-temperature-resistant and high-pressure-resistant extraction pool used for extracting solvent; a circular groove is arranged on the end surface of the pool body; small steps are arranged at the bottom of the internal side of the groove; small steps are arranged at the root of the internal side of the groove; a sealing cover is arranged on the end surface of the extraction pool body; a protuberant sealing cut is arranged at the internal side of the extraction pool body to which the sealing cover is close; wherein, a protuberant ring-shaped step is arranged in the cut; a guide hole for sealing cover is arranged in the middle of the sealing cover; a ring-shaped sealing gasket is arranged between the sealing cover and the end surface of the extraction pool; a circle of steps are arranged at the internal side above the gasket, just enough for placing a filtering sheet; a sealing cover cap is connected with the extraction pool through in a threaded way. The sample extraction pool device has the advantages that the device ensures that a gasket and a filtering sheet at the upper and lower sides are reduced from the sealing structure so that the arrangement and detachment are very convenient, the requirement for processing precision of mechanical components are lowered; the device not only has low manufacturing cost and long service life but also has low operating cost, and is especially suitable for being used for the extraction pool for device for accelerating solvent.