93results about How to "Small and beautiful appearance" patented technology

The invention relates to an automatic loading machine hand of car glass pre-treatment production lines, comprising a driving mechanism platform, a grabbing arm and a sense touch mechanism, an arm rotary mechanism and a rising and falling buffering mechanism; wherein, the driving mechanism platform is arranged on the rising and falling buffering mechanism which consists of 3 three-foot single-leg frames; the grabbing arm and the sense touch mechanism are connected with a rotation axis of the arm rotary mechanism. The invention has the advantages that the rising and falling movements along a Z shaft direction are carried out by using a dual action cylinder to drive the driving mechanism platform to move from left to right along an X shaft direction, when rising, the grabbing glass is lifted by 300mm so as to separate glass on a stacking frame and avoid a ledge on the stacking frame; when falling, the grabbing glass is led to fall by 300mm to put the glass on a conveyer moving in a Y shaft direction; the device is delicate and aesthetic in shape, and small in occupation space; the design concept is innovative, novel, practical and prospective; the structure is simple; therefore, the machine hand can be easily made, assembled, and programmed and the manufacturing price is low.

The system consists of smart card for generating one time password (OTP), device for creating OTP, authentication server, windows fault-tolerance authentication and synchronization method. The personal ID information and OTP are transmitted to authentication system through network. The authentication system selects one or more possible examining passwords from a large group of examining passwords to build up a smaller group of examining password. The received OTP is compared with the smaller group of examining password; if the OTP is in the smaller group the authentication of the use is passed.

The invention relates to a multifunctional fiber splitting box relating to the technical field of optical fiber communication equipment. The multifunctional fiber splitting box is characterized in that the upper half part inside a box body is provided with a fiber storing and fusing disc; one surface of the fiber storing and fusing disc is provided with an optical branching device installation groove, and the other surface is provided with a fiber fusing disc; the part which is near to middle inside the box body is provided with an adapter bracket; an outdoor optical cable guide hole and a dish-shaped optical cable output end are arranged below the box body; an outdoor optical cable guided into the fiber splitting box, an optical fiber bundle tube with a protective layer removed, a steel wire playing a strengthening role on the outdoor optical cable and a dish-shaped optical cable are all fixed by special fixing structures; and the box body can be hung on a wall or a rod through a wall hanging fixing part or an anchor ear. The invention has the advantages of small and exquisite appearance, reasonable internal setting, very convenient wire arrangement, routing and connection, weather proofing and corrosion resistance and is especially suitable for the reconstruction of urban old areas and countries with dispersed residences; and in addition, one multifunctional fiber splitting box can meet the requirements of 16-32 dispersed resident families on FTTH (Fiber To The Home) directly carried out through the outdoor optical cable and can be popularized and applied due to low manufacture and usage cost.

The invention discloses an in-vitro test stimulator, and belongs to the technical field of implanted medical instruments. The in-vitro test stimulator is mainly used for nervous electric stimulation therapy test. The double-channel pulse output in-vitro test stimulator with a user interface can output accurate parameter adjustable electrical stimulation pulse, and is used for treatment test or short-term electric stimulation therapy experience of patients in implanted nerve stimulator operation. The test stimulator is characterized in that the test stimulator adopts integrated structural design, and mainly comprises a shell, a toggle switch, a film key, a display screen, a battery, a printed circuit board and the like. The test stimulator is small and simple; through the key and the switch, pulse parameters and test electrode load impedance can be adjusted and the polarity of an electrode contact can be set, so the test stimulator is intuitive and convenient to operate; and through the design of self-locking function and error operation prevention, error operation of the patients in use can be effectively prevented, and the test stimulator is safe and reliable. The test stimulator can be widely applied to test assessment and experience of electric stimulation therapy.

The present invention discloses a multiple fault coupling wheel case analog experimental table in the field of rotating machinery vibration monitoring and diagnosing, a plurality of typical faults of the gear equipment can be comprehensively, objectively and conveniently simulated, such as eccentricity, pitting, stripping, uniform abrasion on the tooth surface, tooth root fatigue crack, tooth breaking and the like; through dialing the assemble arrangement result of the gear with the fork spreader converting mechanism, the coupling fault signal and the signal varying process of the gear from normalization to fault generation can be continuously observed in operation. Besides, by arranging fault on the bearing the bearing fault and a bearing coupling fault of the gear can be simulated. The researching proofing procedure for the fault diagnosing method by the scientific researcher is greatly facilitated, the time from theory to the practice is shortened and the time and energy spent for arranging the experiment by the scientific researcher are saved. Besides, the multiple fault coupling wheel case analog experimental table can also be applied in the teaching practice for improving the learning and recognizing level.

The invention relates to tobacco machinery and discloses a novel cigarette quality detecting device used for a putuo 70 / 90 cigarette making machine, which takes a gas leakage signal acquisition and a main controller as a core and also comprises a machine signal input unit, a removing control unit, a power supply processing unit, an analog output unit and a display unit, wherein the main controller receives gas leakage signals, machine sensor signals and touch screen setting signals, carries out computing and processing by a plurality of paths of high-speed analog-to-digital converters and a plurality of single chip microcomputers, controls the rejecting unit to reject cigarettes with quality defects and displays real-time data on a touch screen. In the cigarette quality detecting device, the states of air leakage, end loosing, appearance and no cigarette holders of the cigarettes can be detected in a more comprehensive manner, the cigarettes with quality defects in the production process of cigarettes are correctly rejected, the cigarettes with quality defects flowing into the market are greatly reduced, the product quality is comprehensively improved, simultaneously the working state of the cigarette making machine can be really reflected, and the maintenance working of the cigarette making machine is convenient.

The invention relates to the fiber communication equipment technology field, and provides an FTTB (Fiber To The Building) multipurpose integration information box. A movable panel is provided in a box, the movable panel is provided with two sets of 100 loop 100wiring modules or two sets of 24-port RJ 45 data distribution frames. Through a latch and a bracing frame, the movable panel can flip up and down and be fixed. A back plate of the movable panel is provided with a 12-core optical cable welding box. An optical cable holding device is provided under the movable panel. A line ring is provided above the movable panel. Two sides of the line ring are provided with an ONU support respectively. A socket, an air switch, a grounding bar, a fiber adapter, a fan temperature control switch and a power line in / out port are provided at an upper part of the box. The FTTB multipurpose integration information box has the advantages of a small and beautiful shape and a light weight, the movable panel facilitates wiring, line running, and line connection, various modules can be selected freely, the FTTB multipurpose integration information box can be installed on an outdoor floor, on a building floor or on a wall, and popularization and application of FFTB are facilitated.

The invention discloses a self-locking and lever principle-based vehicle electrical control / manual double-purpose safety hammer, which belongs to the technical field of an automobile safety device. The self-locking and lever principle-based vehicle electrical control / manual double-purpose safety hammer is characterized in that: the hammer head is a conical hammer head of which the bottom surface is in contact with a compression spring; the hammer head is arranged in a circular guide cavity; a self-locking component force device is arranged on a mounting bracket of the shell through a pin shaft; a short arm end is in contact with a conical surface of the hammer head, and a long arm end is in contact with an electromagnetic iron core; a pull ring is arranged at the lower end of the self-locking component force device; a one-key type centralized control safety hammer parallel electrical control network can be constructed; after a starting switch is started or the pull ring is manually pulled, the self-locking component force device is unlocked and the hammer head bounces out along the circular guide cavity to smash glass; and under the condition that a safety cover is damaged in a mistaking way, an alarm switch is closed, and a buzzer sends an alarm. The self-locking and lever principle-based vehicle electrical control / manual double-purpose safety hammer has the effects and benefits of electrical control and manual operation, high reliability, capability of automatically smashing glass, convenience for passengers to escape, integrated shell, simple structure, easiness for batch production and capability of being applied to school buses, buses, sightseeing buses, trains and the like.

The invention relates to a vehicle-carrying digital audio-visual electronic device which is formed by a liquid crystal display screen, a CPU plate, a MCU plate, an internal memory, a CPU, a hard disk, a wireless network interface card, a GPS, a CDMA / GPRS or 3G module, a regulated power supply, a horn, a sonic decoder, a multi-function interface and a case. It comprises a control end of the city managing center and dispatching center equipment including an electronic communication server, an electronic wireless transmitting base and a server gate road, wherein it uses the electronic operating wireless network transmitting relay device including the electronic communication server to achieve the internet server and the intelligent dispatching.

The invention provides to a nut huller, which relates to a daily life device and comprises two hollow semicircular casings, wherein each semicircular casing comprises an outer case, a built-in net, an inner case and a plurality of metal teeth, the outer case is a hollow hemispheroid and is made of soft materials, the outer case is covered outside the spherical surface of the built-in net, the built-in net is a hemispherical metal net, the inner surface of the metal net is fixedly connected with the metal teeth, the inner case is a hollow hemispherical body and is placed in the built-in net, fixing holes penetrating through the spherical surface of the inner case are arranged on the inner case , the arrangement mode of the fixing holes is the same as the arrangement mode of the metal teeth on the inner surface of the metal net, and the built-in net is sheathed with the inner case in a way that the metal teeth pass through the fixing holes. The nut huller has the positive effects that the appearance is small, exquisite and attractive, the nut hulling effect is good, the weight is light, the safety is good, and the carrying and the use are easy.

The invention discloses an in-vitro test stimulator, and belongs to the technical field of implanted medical instruments. The in-vitro test stimulator is mainly used for nervous electric stimulation therapy test. The double-channel pulse output in-vitro test stimulator with a user interface can output accurate parameter adjustable electrical stimulation pulse, and is used for treatment test or short-term electric stimulation therapy experience of patients in implanted nerve stimulator operation. The test stimulator is characterized in that the test stimulator adopts integrated structural design, and mainly comprises a shell, a toggle switch, a film key, a display screen, a battery, a printed circuit board and the like. The test stimulator is small and simple; through the key and the switch, pulse parameters and test electrode load impedance can be adjusted and the polarity of an electrode contact can be set, so the test stimulator is intuitive and convenient to operate; and through the design of self-locking function and error operation prevention, error operation of the patients in use can be effectively prevented, and the test stimulator is safe and reliable. The test stimulator can be widely applied to test assessment and experience of electric stimulation therapy.

The present invention relates to an fuel-saving device controlled by CPU for diesel engine, including bottom plate, fuel pipe, shell, cover plate, fixing screw, CPU, printed circuit board, Dailingtontube and coil, two walls of the external shell are equipped with opened hole, the fuel pipe is passed through the hole and is placed in the shell, said printed circuit board is placed in the externalshell, and the CPU and Darlington tube are placed on the printed circuit board and connected by means of circuit diagram, the coil is winded round exterior of oil pipe and connected with Darlington tube. Said invention is simple in structure, good in magnetizing effect, high in reliability, small in volume and convenient for mounting.

A leveling system for a high-altitude operation platform by means of PWM (pulse-width modulation) control technology comprises a supporting arm, a control box, the high-altitude operation platform, an LEM (laser energy monitor) controller, a static angle sensor, a mercury angle switch, a connecting plate, an oil pump, an oil box, a power output device, a safety valve, a speed regulating valve, a leveling proportional valve, a two-way speed limiting valve and a leveling cylinder. The LEM controller is mounted on the operation platform, an analog circuit is controlled by the PWM control technology and digital output of a microprocessor, the LEM controller is used for detecting angles, outputting signals and controlling a proportion leveling valve, the oil pump, the speed regulating valve, the leveling proportional valve, the two-way speed limiting valve and the leveling cylinder to form a hydraulic oil circuit, and the leveling cylinder is organically connected with the supporting arm and the operation platform through connecting blocks. An inclined angle signal of the high-altitude operation platform can be constantly detected by a leveling controller, the inclined angle of a plane is automatically adjusted in the horizontal or vertical direction, and proportional quantities are automatically outputted, so that the operation platform is constantly kept horizontal.

A universal spherical joint supporter with an anti-loosening position-limiting structure comprises a main spherical joint structural part consisting of a main top base with a concave spherical surface and a main bottom base with a convex spherical surface; the main bottom base consists of a base body, at least three reinforced plates and a steel ball; the steel ball is a convex ball component arranged in the bottom base; the reinforced plates are distributed in the bottom base radially and vertically by taking the vertical middle axis line of the steel ball as a central line; each reinforced plate is provided with a vertical edge closely to the middle axial line of the steel ball; a spherical concave position used for bearing the steel ball is arranged on an upper plate of the reinforced plate closely to the middle axis line by taking the spherical center of the steel ball as a center, and a convex claw is arranged in a space between every two adjacent reinforced plates on the main bottom base correspondingly to the lower circumference of the main top base, thus forming the position-limiting structure of the spherical joint. The position-limiting structure can play roles of preventing loosening, restricting the rotation of the top base around the axis line and bearing the pulling force and has excellent bearing performance; and when the position-limiting structure bears the pulling force, the spherical joint part can rotate slightly and simultaneously.

The invention relates to an intelligent traffic LED (Light-Emitting Diode) flash lamp and a circuit thereof, aiming to solve the problems that the existing flash lamp causes potential safety hazards to drivers owing to having certain light pollution and that the illumination range of the existing flash lamp has certain limitations. The intelligent traffic LED flash lamp is characterized in that: heat-conducting silicone grease is applied between an aluminum substrate and an LED lamp; the heat-conducting silicone grease is also applied between the aluminum substrate and a lampshade; a radiating fin is formed on the rear portion of the lampshade; a heat-dissipation cavity is formed in the lampshade on the lower portion of the aluminum substrate; a power cord and a respirator are arranged within the heat-dissipation cavity; and symmetrical vent holes are formed on the cavity walls on both sides of the heat-dissipation cavity. The intelligent traffic LED flash lamp effectively solves the problem of light pollution by employing the technology from faint light or medium light to instantaneous shining. The flash lamp is provided with the structure having the external radiating fin and the internal respirator, so that the heat dissipation performance is effectively improved and the illumination range is wide.

The invention relates to a movable ground source heat pump thermal response test instrument and a testing method. The movable ground source heat pump thermal response test instrument comprises a vertical U-shaped pipe buried in a ground source to be detected, a water box, an electric heater, a circulating water pump, a flowmeter, two temperature sensors, a power adjusting instrument, a PID (Proportion Integration Differentiation) controller, a data acquisition instrument and a frequency converter, wherein the vertical U-shaped pipe is connected with a water inlet and a water outlet of the water box, the electric heater is placed on the bottom of the water box, the two temperature sensors are respectively arranged in a water inlet pipe port and a water outlet pipe port of the vertical U-shaped pipe, the flowmeter is arranged in the water inlet pipe port of the water box, and signals of the flowmeter and the two temperature sensors are sent to the data acquisition instrument, signals of the temperature sensors in the water inlet pipe port of the vertical U-shaped pipe are sent to the PID controller, an output signal of the PID controller is sent to the power adjusting instrument for controlling the electric heater, and the frequency converter controls the circulating water pump. The test instrument can finish a soil thermal response test of a ground source heat pump under two working conditions with constant heat flux or steady temperature, the real-time data acquisition and analysis are realized in the test, and the accurate soil thermal response data is obtained.

The system consists of smart card for generating one time password (OTP), device for creating OTP, authentication server, windows fault-tolerance authentication and synchronization method. The personal ID information and OTP are transmitted to authentication system through network. The authentication system selects one or more possible examining passwords from a large group of examining passwords to build up a smaller group of examining password. The received OTP is compared with the smaller group of examining password; if the OTP is in the smaller group the authentication of the use is passed.

The invention provides a fire-fighting device with an outward-extending powder spraying opening. The fire-fighting device with the outward-extending powder spraying opening comprises a water spraying nozzle 1 and a powder spraying nozzle 2, wherein the water spraying nozzle 1 is arranged outside the powder spraying nozzle 2 in a surrounding mode; and the powder spraying opening 4 of the powder spraying nozzle 2 is arranged in front of a water spraying opening 3 of the water spraying nozzle 1. The powder spraying nozzle 2 comprises a detachable extension pipe 11 arranged at the front part. According to the fire-fighting device with the outward-extending powder spraying opening provided by the invention, the technical bottleneck that sodium polyacrylate resin powder is used as a fire extinguishing agent in the prior art is solved, the sodium polyacrylate resin powder can be smoothly and continuously sprayed into a fire scene, and the powder spraying opening is not blocked.

The invention discloses a formaldehyde detection device, comprising a top shell. A bottom shell is fixedly mounted on the back side of the top shell, and anti-slip rubber grip blocks are fixed at lower positions on both sides of the top shell, a formaldehyde detection sensor is fixedly mounted on the left side below a micro fan, a temperature sensor is fixedly mounted on the right side below the micro fan, and a humidity sensor is fixedly mounted below the temperature sensor. Compared with an original formaldehyde detection device, the formaldehyde detection device adopts a portable structuredesign, is attractive and small in appearance, is light and easy to carry, and reduces the occupied area. And an LCD display is added to visually display the measuring result of the formaldehyde content in the air on the LCD screen. According to the formaldehyde detection device, the problem that the design structure is not compact, too heavy, not easy to carry, large in occupied area, and the measuring result of the formaldehyde content in the air cannot be directly displayed, which brings inconvenience to the detection work, is solved.

The invention discloses a maintenance tool special for dismounting and mounting a double-bundle conductor clamp, and belongs to the technical field of electric system power transformation. The maintenance tool comprises a clamping element, a force applying element and an insurance element and is characterized in that the clamping element is composed of a clamping plate I (1) and a clamping plate II (2), the clamping plate II (2) is connected to the L-shaped clamping plate I (1) through a square concave opening (10), a nut (4) is welded above the clamping plate I (1), a screw rod sleeve (3) is welded to the clamping plate II (2), a screw rod (5) penetrates through the nut (4) of the clamping plate I (1) to be connected with the interior of the screw rod sleeve (3) of the clamping plate II (2), a thread is arranged on the portion, connected with the interior of the screw rod sleeve (3), of the screw rod (5), anti-falling screws (7) are arranged on the two sides of the screw rod sleeve (3), and a safety pin and a safety belt are mounted in two through holes (9) in the back of the clamping plate I (1) respectively. According to the maintenance tool, the work efficiency of dismounting and mounting back the double-bundle conductor clamp can be improved, the labor intensity of a maintainer can be lowered, and human-machine ergonomics is optimized.

The invention discloses a plastic optical fiber wall surface exchange with a control chip. The wall surface exchange comprises a power supply circuit, a filter circuit, a control chip circuit, anti-interference circuits, a crystal oscillator circuit, a plastic optical fiber interface circuit, a first network cable interface circuit, a second network cable interface circuit and a third network cable interface circuit, wherein the filter circuit is connected with the direct-current voltage output end of the power supply circuit; the control chip circuit is provided with an IP178CH control chip; the anti-interference circuits are respectively connected with the control chip circuit; the crystal oscillator circuit is provided with a 25HMz crystal oscillator integrated block; the plastic optical fiber interface circuit is provided with an EDL300T integrated circuit; and each of the first network cable interface circuit, the second network cable interface circuit and the third network cable interface circuit is provided with an RJ45 integrated circuit. The wall surface exchange provided by the invention has the advantages of convenience in installation and use, wide application range, smart and beautiful appearance, and extremely small space occupation.

One kind of windows easy for opening-closing and sealing can be used to solve the question of inflating and discharging to the window gasification packing. The constitution includes moving the window sash, window column, the packing and the fixed window sash, the packing is the void structure, it specially place is: Moving on the window sash is equipped with the gasification holds the hand, the gasification holding the hand is composed by the sufficient air drum and now trachea, two is interlinked, air feeder exportation and packing gasification end docking. This invention retained gasifies the packing on rollers window original characteristic, held by the ingenious idea the window sash the hand designs the gasification installment, the solution gasification packing sufficiently deflates the not convenient question. When use, may act according to the window sash slit size adjustment degree of filling gas, achieves effective, reliable seal effect, to the dust, the water, is mad, the noise, the air current all has strongly prevents the function. The packing ring-like installment, causes the manufacture, the installment, and sufficiently deflates is all convenient.

The invention discloses a variable-speed control device which is connected with a relay to select gears. The variable-speed control device comprises a base (10) which comprises a bottom plate (11), the bottom plate (11) is provided with a light source (13) and a plurality of photoelectric sensors (12) in electric connection with the relay, and each photoelectric sensor (12) corresponds to a gear. The variable-speed control device further comprises a connection selecting component (20) which can selectively enable the photoelectric sensors (12) to be irradiated by the light source (13). According to the variable-speed control device, a simple control structure is used for selecting the gears to achieve automatic speed change, and therefore a variable-speed control system of an automobile is enabled to be simple in structure, convenient and comfortable to control, small and attractive in appearance, small in occupied space and low in cost.

The invention relates to a scissors-type accessible elevating platform, comprising a scissors-type machine frame, an elevating platform, a hydraulic cylinder elevating mechanism and an automatic plate-turnover mechanism. The scissors-type machine frame comprises a bottom frame, a scissors-type inside / outside arm support, an inclined-supporting track, a cam plate and an oil-cylinder roller wheel; the bottom end of the scissors-type inside / outside arm support is installed at the bottom frame, the inclined-supporting track is installed at the hinge position of the scissors-type inside / outside arm support, the cam plate is installed at the arm support and supports the oil-cylinder roller wheel, the oil-cylinder roller wheel is connected with a hydraulic cylinder. The hydraulic cylinder is installed at the upper end of the arm support, and the hydraulic cylinder rod is connected with the oil-cylinder roller wheel. The automatic plate-turnover mechanism comprises a plate-turnover oil cylinder, a plate-turnover oil cylinder support seat, a plate-turnover gas spring, a plate-turnover connecting strip, a plate-turnover connecting strip lug and a turnover plate; the rod of the plate-turnover oil cylinder is connected with the plate-turnover connecting strip and then is connected with the plate-turnover connecting strip lug, one end of the turnover plate is connected with the plate-turnover connecting strip lug, and the plate-turnover gas spring is connected with the turnover plate. The scissors-type accessible elevating platform is driven by hydraulic pressure, and the elevating is smooth and safe; the device is directly installed at the ground, and the pit which is matched with civil construction is not required, the construction is simple and convenient; the maintenance is simple and convenient, and the operation is simple.

The invention relates to a novel diesel engine cylinder cover, which comprises a cylinder cover body and an air distribution top plate, wherein the air distribution top plate is arranged on the cylinder cover body, and has a shape of a trapezoidal cube; a water cavity is formed in the cylinder cover body; bearing upright posts are arranged in the water cavity; the water cavity is an inclined water cavity without middle clapboard; the cylinder cover body is provided with an air inlet channel and an air outlet channel; the cylinder cover has an inclined four-valve structure; the air inlet channel and the air outlet channel are lifted 30 degrees upwards, and are low-resistance straight air channels in parallel connection; and the cylinder cover body is provided with two water inlets and a water outlet, and the water inlets and the water outlet are communicated with the water cavity. The water cavity of the cylinder cover is an inclined water cavity, the water flowing speed and the cooling effect are effectively improved, and a problem of a heat load brought by a high strengthened index is solved; and the novel diesel engine cylinder cover has the advantages of small volume, light weight and high reliability.

The invention relates to the technical field of locks, in particular to an intelligent lock which comprises a driving mechanism, a lock cylinder and an outdoor control component, connected in sequence. The driving mechanism comprises a power mechanism and an executing mechanism, connected in sequence. The power mechanism comprises a touch control component, a mainboard, a motor, a driving shaft connector and a power source. The touch control component, the mainboard, the motor and the driving shaft connector are connected in sequence. A driving board is connected onto the motor. The driving board is connected with the mainboard. The power source is connected with the mainboard and the motor. The executing mechanism comprises a movable buckle and a transmission shaft, connected in sequence. The driving shaft connector is connected with the movable buckle. By improvement on the structure of the power mechanism, when power transmission is influenced due to bending deformation of a transmission shaft, a power output shaft of the motor can still realize normal power output by the self regulating capacity of the structure of the driving shaft connector. Therefore, the adaptability and the fault tolerance of the power mechanism are improved, and the service life of the power mechanism is prolonged.

The invention provides an internal wedge tongue hoisting semicircular holding type folding handle vertical pipe. The internal wedge tongue hoisting semicircular holding type folding handle vertical pipe comprises an upper component, a lower component, opposite locking bolts, a screwing bolt, an internal wedge tongue, a handle vertical pipe and an internal stretching pipe, wherein the upper component is a tubular component with an annular punching component welded at the lower part, and a through hole is arranged in the middle part of the upper component; a guide hole is arranged below the through hole; the upper component is connected with the hand vertical pipe, and the lower component is a punching component with a semicircular bucket formed on one side, wherein two lug holes are arranged in the lower part of an opening of the semicircular bucket; a locking hole is arranged in the upper part of the lower component; the internal stretching pipe is welded at the bottom of the lower component; the opposite locking bolts are connected into two lug holes of the lower component and a ring hole of the annular punching component of the upper component; the screwing bolt passes through the through hole in the upper part, then is screwed into a threaded hole of the internal wedge tongue and finally screwed into the threaded hole in one end of the screwing bolt by virtue of a bolt, so as to be positioned; the internal wedge tongue is a punching component with a screw hole in the upper part and an inclined hook at the lower part; and an inclined hook of the internal wedge tongue slides into the guide hole of the upper component and is locked into the locking hole of the lower component.

The invention discloses a variable-speed control device which is connected with a relay to select gears. The variable-speed control device comprises a base (10) which comprises a bottom plate (11), the bottom plate (11) is provided with a resistor (20), one end of the resistor (20) is connected with a circuit, the other end of the resistor (20) is suspended, and the resistor (20) is provided with a plurality of gear contacts corresponding to gears along the length direction. The variable-speed control device further comprises a gear selecting component (30) which comprises a contact component (31) and a connecting component (32), wherein the contact component (31) and the connecting component (32) are connected with each other and can conduct electricity, the contact component (31) can contact the plurality of gear contacts of the resistor (20) selectively, and the connecting component (32) is in electric connection with the relay. According to the variable-speed control device, a simple control structure is used for selecting the gears to achieve automatic speed change, and therefore a variable-speed control system of an automobile is enabled to be simple in structure, convenient and comfortable to control, small and attractive in appearance, small in occupied space and low in cost.

The invention relates to a multifunctional RFID (radio frequency identification) card reader capable of being matched with a pinpad for use, and the card reader provided by the invention comprises a base with a control circuit. The card reader is characterized in that a flip is hinged on the periphery of the base, can be arranged at any side of the card reader and can rotate at any angle; a CPU (central processing unit) control module of the control circuit is in communication connection with an antenna which is independently arranged on the flip by virtue of a non-contact card control module; an IC (integrated circuit) card slot and an LED (light emitting diode) indicating lamp are arranged on the periphery of the base; and a movable pinpad is placed on the base. The card reader can be matched with the pinpad or used independently, has the characteristics of nice and smart appearance, simple structure, reliable work, lower cost and quick conversion of product states, and can be used for saving use space, so that the operation is more quickly and conveniently, and the work efficiency is improved.

The invention discloses a multifunctional water-saving valve, which is suitable for families, hotels, dormitories and other occasions needing supply of cold water and hot water. The multifunctional water-saving valve comprises a valve body, a middle sleeve, a shifting rod, opening and closing components and the like and is mainly characterized in that a reflux inlet and a reflux pipe are additionally arranged on the valve body; a reflux hole is additionally arranged on a fixed sheet; a reflux kidney-shaped groove, a reflux kidney-shaped hole and a reflux circular groove are additionally arranged on a lower fixed block; a deflected kidney-shaped groove is additionally arranged on a middle sliding block; and the sizes of the grooves and the holes on the fixed sheet, the lower fixed block and the middle sliding block are optimized, designed and adjusted. The improved structure can respectively realize six working states of discharging cold water and hot water simultaneously, discharging cold water solely, discharging hot water solely, completely closing the discharged water, discharging water from a water tank, and completely discharging cold water in a hot water pipe to enter the water tank for saving water; especially, before hot water needs to be discharged solely, the defect of the traditional water-saving valve which needs to wait for a longer preheating time can be avoided, and cold water or mixed cold and hot water in the hot water pipe does not need to be discharged, thereby achieving the purpose of saving water resources; and the water-saving valve has multiple functions.