31results about How to "Reduce distance variation" patented technology

In a vehicle deceleration control method, wherein the deceleration control of the vehicle is performed based on the distance between the vehicle and obstacles including the preceding vehicle in front of the vehicle, a target deceleration for decelerating the vehicle is obtained based on the distance a gear or gear ratio is selected as the gear or gear ratio of the vehicle transmission (10) during the shifting operation, said gear or gear ratio will act on the vehicle with a deceleration equal to or less than the target deceleration; the The deceleration control is performed by applying a braking force to the vehicle through a braking device (200) and shifting the transmission (10) of the vehicle into a lower gear or gear ratio through a shift operation.

The invention provides a thermotropic fluorescent color-variable coordination polymer containing [Cu414]n clusters as well as a synthesis method and application thereof and relates to a thermotropic fluorescent color-variable coordination polymer as well as a synthesis method and application thereof. The thermotropic fluorescent color-variable coordination polymer containing [Cu414(C14H14N4)2]n clusters is used for solving the technical problems of single emitted light color, short fluorescent life and high raw material cost of an existing thermotropic fluorescent color-variable material. The thermotropic fluorescent color-variable coordination polymer containing [Cu414(C14H14N4)2]n clusters has a molecular formula of [CU414(C14H14N4)2]n, and has a structural formula as shown in the specification. A preparation method comprises the following steps of mixing raw materials; heating with water; cooling; filtering; drying. The method has the beneficial effect that the yield is about 60%. The polymer presents yellow fluorescence at room temperature, and is good in single color property; a thermotropic fluorescent color-variable material capable of changing yellow fluorescence into red fluorescence is obtained by virtue of regulating different temperatures. The polymer is doped into polymethyl acrylate, so that the strength is improved, raw materials are easily available, the preparation method is simple, and the polymer can serve as a raw material for a fluorescent material film.

The invention discloses a stone sweeping machine. The stone sweeping machine is characterized in that a support of the stone sweeping machine is fixed onto the front end surface of an axle box, and a stone sweeping structure is fixed to the front side of a wheel set by the aid of the support. The stone sweeping machine can be repositioned, can be fixed onto the axle box and can be guaranteed against being affected by vibration of a primary spring, change of the distance from the stone sweeping machine to a rail surface can be greatly reduced, accordingly, obstacle removing effects can be improved, and high-speed running of a railway vehicle can be effectively guaranteed. The stone sweeping machine has the advantages that the stone sweeping machine is mounted on the axle box and is simple in structure, and good stone sweeping effects can be realized; the support of the stone sweeping machine with the structure is free of weld rib plates, and accordingly weld cracks can be prevented; the distance from a rubber plate to the rail surface can be adjusted via end teeth, and accordingly the stone sweeping machine is safe and reliable. The invention further discloses the railway vehicle with the stone sweeping machine.

The invention relates to a shearing device and a cloth production process using the shearing device. The shearing device comprises a machine frame, a shearing mechanism is arranged on the machine frame, and the shearing mechanism comprises a shearing roller, two limiting blocks, a steering part and a driving assembly. The shearing roller is horizontally and rotatably mounted on the machine frame, and the two limiting blocks are arranged on the machine frame and correspondingly located on the two opposite sides of the shearing roller, the steering part is mounted on the machine frame and used for turning over the fabric, and the driving assembly is mounted on the machine frame and drives the shearing roller to rotate. The shearing device has the effect of reducing the length difference of fluff on two sides of the fabric so as to improve the quality of the fabric.

The invention relates to the technical field of semiconductor manufacturing accessories, and especially relates to a uniformity control device for wafer production etching, wherein the device achievesthe convenient clamping, and is easy for the control of the speed and quantity of solution. The device includes a workbench and a plastic dropper, and also comprises a first support bar, a second support bar, a front limiting plate, a rear limiting plate, a left baffle plate, a right baffle plate, a push rod, a rack, a rear incomplete gear, a front incomplete gear, a rear connecting rod, a frontconnecting rod, a front fixed rod and a rear fixed rod. The device further comprises a third supporting rod, a fourth supporting rod, a first rotating rod, a second rotating rod, a first threaded rod,an upper gear , a lower gear, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a lantern ring, a left clamping plate and a right clamping plate, wherein the right side wall of the first supporting rod is provided with a first placement groove and a second placement groove, and the first placement groove and the second placement groove are respectively provided with a first ball bearing and a second ball bearing.

A keyboard apparatus 100 includes plural keys, electronic actuators, reflection plates, and optical sensors. Each of the plural keys extends in the longitudinal direction, and pivots in the vertical direction about a support in accordance with the key depression and key release. Each of the plural electronic actuators has a movable member that displaces in the vertical direction in interlocking with the pivot movement of each of the keys so as to apply a reaction force against the operation of depressing the keys. Each of the plural reflection plates is fixed to the movable member of the electronic actuator, wherein the reflection surface thereof faces in the lateral direction of each of the keys. The light reflectance of each of the reflection plates changes along the displacing direction of the movable member. Each of the plural optical sensors is arranged at the position apart from the longitudinal axis of each of the keys in the lateral direction. It emits light toward the reflection plate and receives the reflected light from the reflection plate so as to output an electric signal according to the quantity of the received light.

The invention relates to a device for preventing winding deformation of a spiral copper pipe coil. The device comprises a support, a winding drum rotationally arranged on the support and used for winding a copper pipe coil, and a shaping grooved pulley group movably arranged on the support and used for assisting the shaping of a copper pipe. A spiral groove is formed in the axial side surface of the winding drum, and the copper pipe is wound along the spiral groove; a limiting groove is formed in the shaping grooved pulley group; a groove opening of the limiting groove is opposite to a grooveopening of the spiral groove; and the section of the limiting groove and the section of the spiral groove form a complete circle with the diameter equal to the outer diameter of the copper pipe. The device has the effects that the variation of the inner diameter and the outer diameter during winding of the copper pipe is reduced, the variation of the distance between every two adjacent circles ofthe copper pipe coil is reduced, and the inductance value of the copper pipe coil is more stable.

The invention discloses a tinned copper strip tin layer regulating mechanism for a copper strip tinning machine. The tinned copper strip tin layer regulating mechanism comprises a base plate, a left guide plate, a right guide plate, a moving plate, a connecting plate, a guide rod support seat, a guide rod, a left screw rod support seat, a right screw rod support seat, a middle support plate, a left screw rod, a right screw rod, a left slider and a right slider, wherein the left guide plate and the right guide plate are both fixedly arranged on the base plate; the moving plate is arranged between the left guide plate and the right guide plate; the connecting plate is fixedly arranged in the lower part of the moving plate; the guide rod support seat, the left screw rod support seat, the right screw rod support seat and the middle support plate are all fixedly arranged on the connecting plate; the guide rod is mounted on the guide rod support seat; the left screw rod is mounted on the left screw rod support seat; the right screw rod is mounted on the right screw rod support seat; the ends of the left screw rod and the right screw rod are both arranged inside the middle support plate; the left slider is connected with the left screw rod and slides on the guide rod; the right slider is connected with the right screw rod and slides on the guide rod; a left breather pipe is mounted on the left slider; a right breather pipe is mounted on the right slider. The tinned copper strip tin layer regulating mechanism disclosed by the invention is used for realizing uniformity and stability of air flow, and is safe and reliable.

The invention discloses a multi-joint clamp for a cylindrical workpiece, comprising a base, a cylinder and a fixing frame are fixedly installed on the base in sequence from left to right, and a direction-changing transmission whose lower end is hinged with the base is arranged between the cylinder and the fixing frame The left end of the transmission block is the force arm, the right end of the transmission block is the jack, the lower end face of the force arm is in contact with the top end of the cylinder piston rod, the clamp block module is movably connected to the fixed frame, and the right end of the clamp block module abuts the fixed frame. The left end of the clamping block module is aligned with the plug on the right end of the transmission block; the clamping block module includes several clamping blocks with the same structure, all the clamping blocks are arranged in a row, and a flexible block for resetting the clamping blocks is installed between the clamping blocks, and the clamping blocks are symmetrical on the left and right. , the left and right ends of the clamping block respectively have clamping openings with the same structure. The cylindrical workpiece multi-joint clamp is driven by a cylinder and the distance between the clamping blocks changes little, so the clamping and loosening are correspondingly rapid; due to the modular design, it is convenient to replace the clamping block module, and can quickly realize "one machine" multipurpose".

The invention discloses a building roof steel net rack which comprises a first fixing frame, first fixing beams, second fixing frames and second fixing beams, the second fixing beams are arranged between the first fixing frame and the second fixing frames, and the first fixing beams are welded between the second fixing beams. Compensation structures and lifting structures are arranged at the two ends of the first fixing frame and the two ends of the second fixing frame, and the compensation structures are connected with the two ends of the first fixing frame. The roof steel net rack for the building belongs to the technical field of buildings, errors of fixing frames and supporting columns can be compensated through compensation blocks and middle blocks, the height of a first fixing frame and a compensation structure can be adjusted, the supporting columns at the bottom end of a lifting structure are matched with the height of the fixing frames, and the distance between first fixing beams can be adjusted; the distance change between the first fixing frame and the second fixing frame can be reduced, and deformation of steel structures of the first fixing frame and the second fixing frame is avoided.

The invention relates to an adjustment device for an exterior rearview mirror unit of a vehicle, the adjustment device comprising a support unit and a housing unit pivotable between a plurality of positions relative to the support unit in the circumferential direction. Furthermore, the adjusting device comprises a breakable rotation-locked coupling unit for coupling the housing unit to the support unit. The coupling unit comprises a number N of parallel-arranged coupling pieces, wherein each coupling piece has two mutually opposite coupling surfaces which are pressed against each other under spring action and are mutually displaceable in the circumferential direction. The coupling surfaces have a periodic cam pattern that engages each other, where the two coupling surfaces are destructively rotationally locked to each other, and where only a limited number M of couplings, where M is less than N, engage at the same time.

A display device has a movable screen that is movable in a movement direction, a drive controller, a projector, and a position detector. The drive controller moves the movable screen relative to a reference position set at a prescribed position in a movement range of the movable screen. The projector performs drawing on the movable screen by irradiating the movable screen with light used for scanning the movable screen and projects a virtual image onto a target space based on light that passes through the movable screen. The position detector executes position detection processing for detecting that the movable screen is located at a detection position set in relation to the prescribed position. The position detector moves the movable screen and executes the position detection processing in a non-display period in which the movable screen is not irradiated with light from the projector.

Provided is a door unit which can enable a door to move smoothly and enable a door frame not to be large-sized and complicated so as to prevent fingers from being clamped between the door and the door frame. The door unit (1) comprises the door frame (2) and the door (3), the door frame (2) is provided with a surface opposed face (S1) which is arranged in a manner of being opposed to a surface (3a) on the door tail side of the door (3) under the condition that the door (3) is closed and forming a door clearance (Dh) with the surface (3a) of the door tail side of the door (3), a buffer (10) is arranged on the surface opposed face (S1) to have the door clearance (Dh) blocked, the front end face of the buffer (1) is provided with an inclined plane (10s), and the inclined plane (10s) is formed to get close to the surface opposed face (S1) from the door head side of the door (3) to the door tail side under the condition that the door (3) is closed.

Common sense is that for the people snoring in supine position, the snore can be stopped when the position is changed into lateral position. The invention discloses a method for inducing the snorer to sleep in lateral position. The method is characterized in that one end of an electric vibrator is connected with the shoulder through a ribbon surrounding the upper arm, and the other end is connected with the neck through a ribbon surrounding the neck; and the electric vibrator is placed in the chest front area and particularly the position in the chest front area close to the shoulder joint. When a patient of obstructive sleep apnea syndrome starts snoring, the electric vibrator captures the snore signal in time and vibrates to stimulate the shoulder or chest front area of the patient, then the patient is induced to sleep in lateral position, and the snore is stopped in time.

The invention discloses a middle chain transmission type central electric driving system which comprises a power input mechanism, a driving wheel, a speed reduction input mechanism arranged on an intermediate shaft outside the wheel, a wheel mounting shaft connected with the intermediate shaft outside the wheel through a chain transmission assembly and a speed reduction output mechanism arranged on the wheel mounting shaft. The power input mechanism transmits power to the driving wheel through the speed reduction input mechanism, the chain transmission assembly, the wheel installation shaft, the speed reduction output mechanism and a power output component in sequence. By the adoption of the technical scheme, the advantages of a central driving structure are reserved, the motor is arrangedin the middle of the two-wheeled vehicle, the speed reducing mechanism is arranged on one side of the driving wheel, meanwhile, a chain transmission mode is adopted, the acceleration and decelerationimpact of the two-wheeled vehicle can be buffered, and the distance change between chain wheels caused by the up-and-down oscillation of a suspension system can be reduced; in addition, the speed reduction input mechanism is additionally arranged beside the power input mechanism, and the speed reduction ratio is further increased.

The invention relates to a device for preventing deformation of spiral copper pipe coils, which comprises: a support, a winding reel which is rotatably arranged on the support and used for winding copper pipe coils, and which is movably arranged on the support and is used to assist copper coils. The shape-setting groove wheel set for the tube is shaped. There is a spiral groove on the shaft side surface of the winding reel, and the copper tube is wound along the spiral groove; The mouths are opposite, and the section of the limiting groove and the section of the spiral groove form a complete circle with a diameter equal to the outer diameter of the copper pipe. The invention has the effects of reducing the variation of the inner diameter and the outer diameter when the copper tube is wound, reducing the variation of the distance between two adjacent turns on the copper tube coil, and making the inductance value of the copper tube coil more stable.

The invention discloses a seat and a functional frame thereof. The functional frame comprises a bottom rod and a connecting rod which are connected with each other through an electric push rod; leg placement plate connecting frames, connecting pieces A, connecting pieces B, connecting pieces C, connecting pieces D, connecting pieces E, connecting pieces F, connecting pieces I, fixing pieces and backrest connecting frames are respectively arranged on the left side and the right side of the bottom rod and the connecting rod in pairs; a leg placement plate is arranged on three four-connecting-rod mechanisms formed by the leg placement plate connecting frames, the connecting pieces A, the connecting pieces B, the connecting pieces C, the connecting pieces D, the connecting pieces E and the connecting pieces F; the electric push rod drives the backrest connecting frames to rotate around the hinge points of the backrest connecting frames and a fixed frame; the rotating force of each backrest connecting frame is transferred to the corresponding connecting piece F through the corresponding connecting piece; the two fixing pieces are fixed to a fixing rod frame in a detachable way; the left end and the right end of the bottom rod are fixedly connected with the two fixing pieces respectively in a detachable way. Due to the adoption of the technical scheme, the functional frame is smooth and stable to move, comfortable to use, reasonable in structure, convenient to transport and assemble and has a space-saving effect.

The invention relates to the technical field of display screens, and discloses a novel in-screen punching and touch integrated module which comprises a glass cover plate, an LCD display screen is fixedly installed at the bottom of the glass cover plate, a light guide plate capable of guiding light is fixedly installed at the bottom of the LCD display screen, a backlight plate is fixedly installed at the bottom of the light guide plate, and an LED lamp set is arranged at the left end of the backlight plate. According to the novel in-screen punching and touch control integrated module, the lamp beads are installed above the conductive plate, the limiting cover plate is installed on the inner side of the installation plate, so that the limiting cones on the limiting plate are attached to the outer sides of the lamp beads, and therefore the lamp beads are subjected to limiting treatment; therefore, in the using process, the situation that the lamp bead or the glass lens vibrates and shakes due to limitation of the spring is reduced, the distance change between the lamp bead and the glass lens in the using process is reduced, and the situation that the light intensity changes in the using process is reduced.

The invention discloses a middle-mounted wheel core driving electric driving automatic speed change system. The system comprises a power input mechanism, a driving wheel, a gear shifting transmissionmechanism arranged on a middle shaft outside the wheel, a middle shaft inside the wheel connected with the middle shaft outside the wheel through a chain transmission assembly, and a speed reduction output mechanism arranged on a wheel mounting shaft, wherein the gear shifting transmission mechanism comprises a single-side synchronizer, an overrunning clutch and a speed reduction assembly. The system is advantaged in that the speed reduction output mechanism is additionally arranged at the wheel core position of the driving wheel, the speed reduction ratio is increased, and therefore a high-speed motor can be adopted for driving, motor efficiency is greatly improved, the endurance mileage is increased, meanwhile, a chain transmission mode is reserved, and acceleration and deceleration impact of the two-wheeled vehicle can be buffered; the distance change between the chain wheels caused by up-and-down oscillation of a suspension system is reduced, two-gear gear shifting can be achieved,the electric two-wheeled vehicle has the high climbing and heavy load capacity, the motor can be located on an efficient platform all the time, and motor efficiency is further improved.

The invention relates to a cabinet door connecting structure of a disinfection cabinet and a mounting method thereof. The cabinet door connecting structure of the disinfection cabinet comprises a disinfection cabinet body and cabinet doors, the cabinet body and the cabinet doors are connected through at least one hinge joint structure, each hinge joint structure comprises two movable joints whichare symmetrically hinged, each movable joint comprises a groove-shaped piece and a supporting foot extending towards at least one side from two groove walls of the groove-shaped piece, the groove walls and the supporting feet of the groove-shaped pieces are provided with three sets of penetrating holes used for penetrating of hinge pins, the three penetrating holes are the middle hinge penetratinghole, the limiting hinge penetrating hole and the movable hinge penetrating hole correspondingly, the groove walls and the supporting feet of the two movable joints are overlapped in the axial direction of the penetrating holes in a staggered mode, the middle hinge penetrating holes of the two movable joints are coaxial, and middle hinge pins are arranged in the coaxial middle hinge through holesin a penetrating mode. According to the cabinet door connecting structure, the slit between the cabinet body and the cabinet door is very small, so that the overall structure is compact, a larger space is not occupied, and the attractiveness of the disinfection cabinet is also improved.

The invention discloses a middle chain transmission wheel core drive electric drive automatic speed change system. The system comprises a power input mechanism, a driving wheel, a speed reduction input mechanism, a wheel mounting shaft, a gear shifting transmission mechanism and a power output part, wherein the speed reduction input mechanism is arranged on an intermediate shaft outside the wheel,the gear shifting transmission mechanism and a power output part are arranged on the wheel mounting shaft, and the gearshift transmission mechanism comprises a double side synchronizer and a reduction component, a bilateral synchronizer can be combined with a power output component or a speed reduction assembly. The system is advantaged in that the reduction ratio is increased, so a high-speed motor can be adopted for driving, motor efficiency is improved, the endurance mileage is increased, meanwhile, a chain transmission mode is reserved, the acceleration and deceleration impact of the two-wheeled vehicle can be buffered, the distance change between chain wheels caused by up-and-down oscillation of a suspension system is reduced, and two-gear shifting can be realized; the electric two-wheeled vehicle has strong climbing and heavy load capacities, and the motor can be always located on the efficient platform.

The invention discloses a seat and a functional frame thereof. The functional frame comprises a bottom rod and a connecting rod which are connected with each other through an electric push rod; leg placement plate connecting frames, connecting pieces A, connecting pieces B, connecting pieces C, connecting pieces D, connecting pieces E, connecting pieces F, connecting pieces I, fixing pieces and backrest connecting frames are respectively arranged on the left side and the right side of the bottom rod and the connecting rod in pairs; a leg placement plate is arranged on three four-connecting-rod mechanisms formed by the leg placement plate connecting frames, the connecting pieces A, the connecting pieces B, the connecting pieces C, the connecting pieces D, the connecting pieces E and the connecting pieces F; the electric push rod drives the backrest connecting frames to rotate around the hinge points of the backrest connecting frames and a fixed frame; the rotating force of each backrest connecting frame is transferred to the corresponding connecting piece F through the corresponding connecting piece; the two fixing pieces are fixed to a fixing rod frame in a detachable way; the left end and the right end of the bottom rod are fixedly connected with the two fixing pieces respectively in a detachable way. Due to the adoption of the technical scheme, the functional frame is smooth and stable to move, comfortable to use, reasonable in structure, convenient to transport and assemble and has a space-saving effect.