36results about How to "Good operating comfort" patented technology

The invention discloses a directly-driven straddling-type gearless single-rail bogie. The single-rail bogie comprises a frame, a traction device, a basic braking device, a shock reduction device, stabilizing wheels, guiding wheels and walking wheels, wherein the traction device, the basic braking device, the shock reduction device, the stabilizing wheels, the guiding wheels and the walking wheels are installed on the frame. An axle of the walking wheel pair is directly linked with a permanent magnet motor suspended on the frame through a split coupling, a split axle box composed of an upper axle box body and a lower axle box body is installed on the frame, the upper axle box body and the lower axle box body are detachably and fixedly connected, and the upper axle box body is fixed to a side beam of the frame and used for installing the basic braking device. The direct traction transmission technology of the permanent magnet motor is utilized, in this way, the structure is greatly simplified, the weight is reduced, transmission efficiency is improved, and environmental-protection capacity and vehicle dynamics properties are improved.

The invention discloses an adjustable damping seat. The adjustable damping seat comprises a cover plate and a soleplate, wherein a damping component is arranged between the cover plate and the soleplate and comprises a pair of shear type connecting rod mechanisms which are symmetrically arranged; a first connecting rod and a second connecting rod of the shear type connecting rod mechanisms are hinged in the middle; corresponding ends of the first connecting rod and the second connecting rod are rotationally arranged on the lower surface of the cover plate and the upper surface of the soleplate through a first connecting shaft and a second connecting shaft respectively; corresponding other ends of the first connecting rod and the second connecting rod are movably arranged on the upper surface of the soleplate and the lower surface of the cover plate respectively; the soleplate in the middle of the second connecting shaft is provided with a propulsion device; the other end of the propulsion device is connected with a spring expansion device; and the lower surface of the cover plate is also provided with an adjusting device capable of driving the shear type connecting rod mechanisms to rotate around the middle of the adjusting device to adjust a height between the cover plate and the soleplate. The problems of troublesome height adjustment and poor damping effect, driving comfort of a driver and fatigue resistance existing in a currently used seat are solved.

The invention relates to the technical field of auxiliary equipment for an endoscope, and discloses a clamping control device for an endoscope. The clamping control device is used for clamping an endoscope tube body and performing advancing, retreating and rotating operations on the endoscope tube body. The clamping control device comprises: a tube body advancing and retreating mechanism for driving the endoscope tube body to continuously advance or retreat, and a tube body rotating mechanism used for driving the endoscope tube body to rotate, wherein the tube body advancing and retreating mechanism and / or the tube body rotating mechanism abut / abuts against the endoscope tube body so as to clamp the endoscope tube body. The clamping control device for the endoscope is easy and convenient to maintain, flexible in action, safe and reliable to, convenient to disassemble and clean and good in operation comfort, can greatly shorten the time needed by an operation or examination, and allowsthe fatigue strength of a doctor in the operation to be reduced.

The invention discloses a miniature portable multifunctional wireless body feeling capture control system which consists of a wireless body feeling capture control end and a wireless receiving end. The wireless body feeling capture control end comprises a data and charging interface, an electrostatic discharge protection module, an interface integration main processor unit, a body feeling processing module, a left proximity switch, a right proximity switch, an elastic sliding switch, a display module, a charging and power management module, a wireless receiving and emitting module, a 3-axis gyroscope, a 3-axis accelerometer, a 3-axis magnetometer and a temperature sensor; and the wireless receiving end comprises a data interface, an electrostatic discharge protection module, an interface integration main processor unit and an wireless receiving and emitting module. The miniature portable multifunctional wireless body feeling capture control system has the advantages that reference axes of the 3-axis gyroscope, the 3-axis accelerometer and the 3-axis magnetometer are subjected to accurate matching, so that the system can perform accurate capture on a body feeling action; and because a traditional light emission and receiving principle is not depended on and mechanical keys are not adopted, limo limit and palm occupation are reduced in use.

The invention relates to the technical field of food processing, in particular to multifunctional food stirring equipment. The equipment includes a base (1), a supporting column (2), an electric machine head (3) and a stirring barrel (4); the stirring barrel is slidingly arranged on the supporting column through a lifting fork (5), the electric machine head is provided with a gear change hand lever (6), a stirring shaft (7) is arranged on the electric machine head, a stirring cutter (8) is arranged on the end portion of the stirring shaft, and a lifting hand wheel (9) is arranged on the supporting column; the lifting hand wheel consists of a driving rod (110), a driving disc (11) and a driving hand lever (12), and multiple oval operation through holes (13) are formed in the surface of thedriving disc; multiple arc protrusions (14) with smooth surfaces are arranged on the outer circumferential surface of the driving disc, the driving hand lever is of a structure with one small end andone large end, and multiple arc-shaped annular grooves (15) are formed in the driving hand lever. The multifunctional food stirring equipment has the advantages that the structure is simple, the operation patterns of the lifting hand wheel are diversified, and the hand feeling of the lifting hand wheel is great.

The invention relates to a water shutdown mechanism for an instantaneous electric kettle. The water shutdown mechanism comprises a steam box lid (6), a drive rod (7), a lever (8), a steam box (9), seal rings (10) and an elastic sheet (11), wherein the steam box lid (6) is arranged at the upper end of the steam box (9); one end of the lever (8) is hinged on the steam box lid (6) through a hinging shaft; the lever (8) is connected with a guide slot on the drive rod (7) through a pin shaft; the elastic sheet (11) which provides upward and downward power for the drive rod (7) respectively is connected with the drive rod (7); and the two water cut-off seal rings (10) used for sealing the water outlet and the waterspout of the steam box (9) are fixed at both ends of the lever (8) respectively.

The invention discloses a maintenance device facilitating maintenance of a pressure meter housing, and relates to the technical field of instrument maintenance devices. The maintenance device mainly comprises a box body and a housing detaching device. The housing detaching device comprises a first motor fixedly connected to the side wall of the box body. An output shaft of the first motor penetrates through the side wall of the box body and is connected with a fixed plate. A movable plate is slidingly connected into a groove in the top end of the fixed plate. A piston rod of a cylinder arranged in the groove is connected with the movable plate. A fixed clamping plate and a movable clamping plate are welded to the fixed plate and the movable plate correspondingly. The cylinder is started, the fixed clamping plate and the movable clamping plate clamp an upper meter cover of a clamping groove type to-be-maintained meter housing, then the first motor is started, the output shaft of the motor drives the fixed clamping plate and the movable clamping plate to rotate, and therefore the meter housing is easily detached, and the personal injuries probably caused by direct manual detachment are effectively avoided.

The invention discloses a mechanical unlocking mechanism for electronic parking. The mechanical unlocking mechanism for electronic parking comprises a parking cam assembly, a pawl assembly, a parkinggear, a cable assembly and an execution assembly; the parking cam assembly comprises a parking guide shaft and a parking cam; the parking cam is arranged on the parking guide shaft in a sleeving mode;arc-shaped protrusions are circumferentially arranged on the outer side of the parking cam, so that the pawl assembly is respectively at a first parking position where the parking gear is engaged anda second parking position where the parking gear is disengaged along with the rotation of the parking cam; one end of the cable assembly is connected with the execution assembly; the other end of thecable assembly is connected with the parking guide shaft; and the execution assembly drives the parking guide shaft to translate through the cable assembly so as to drive the pawl assembly to move from the first position to the second position. The mechanical unlocking mechanism for electronic parking provides an emergency mechanical unlocking function under the condition that a parking motor ispowered off, so that a driver is able to conduct mechanical unlocking manually in a cab instead of getting off the cab; and the safety performance is high, and the operation comfort is good.

The invention discloses an opening structure for an anti-falling device. The opening device comprises a body, wherein the body comprises a shell, a fixed plate and a movable plate; mounting holes are symmetrically formed in the upper part and the lower part of the shell and are blind holes; compression springs and buttons are arranged inside the mounting holes, while the front ends of the buttons are arranged on the compression springs; limiting slots are formed in the tail parts of the buttons, the buttons are fixed on the shell through screws which penetrate through screw holes and the limiting slots; location holes are symmetrically formed in the upper part and the lower part of the movable plate, and the buttons are arranged in the location holes in a penetrating manner so as to prevent horizontal movement of the movable plate; a sliding groove is formed in one side, opposite to an opening direction, of each location hole. The opening structure, disclosed by the invention, can be opened by pressing two buttons at the same time and then outward pulling the movable plate, prevents the danger caused by opening the anti-falling device by mistake by accidentally touching one button, so that the opening device not only is high in safety, but also is good in operation comfort degree.

The invention provides a portable adhesive tape cutter. The portable adhesive tape cutter comprises an adhesive tape installation seat and an adhesive tape cutting seat. The adhesive tape installationseat is formed by two positioning seats. Each positioning seat is provided with a shell plate part, and each shell plate part is provided with a seat notch and a tongue-shaped part. One positioning seat is provided with a column plug, and the other positioning seat is provided with a column jack. The column plug is inserted into the column jack to make the two positioning seats form the adhesivetape installation seat, an adhesive tape installation column is formed by the column plug and the column jack, an adhesive tape pull outlet is formed by the two seat notches, and an adhesive tape pullpositioning tongue is formed by the two tongue-shaped parts. An adhesive tape pull positioning column is arranged on the tongue-shaped part of one positioning seat. The adhesive tape cutting seat isprovided with a cover plate part and two end plate parts and is installed on the adhesive tape installation seat in a movable sleeved mode, the cover plate part can seal and block the adhesive tape pull outlet, and a row of adhesive tape cutting teeth are arranged at the end, close to the adhesive tape pull positioning tongue, on the cover plate part. The portable adhesive tape cutter is simple instructure, attractive in appearance, convenient and safe to use and capable of achieving various operation functions and providing good operation comfortableness for a user.

The invention relates to the technical field of food processing, and particularly discloses a foodstuff high-efficient stirring device. The device comprises a stirring bucket, a lifting fork, a variable speed handle, a stirring shaft, a stirring knife and a lifting hand wheel; the lifting hand wheel comprises a driving rod, a driving plate, a driving handle, an operation through hole, an arc-shaped protrusion, and an arc-shaped circular groove; the stirring knife comprises a stirring circular plate, a first stirring blade and a second stirring blade. The stirring device has the advantages of being simple in structure, diversified in operation manners of the lifting hand wheel, better in stirring effect and higher in stirring efficiency.

The invention provides a portable cutting machine which comprises a shell, a swing output shaft, a motor, a driving shaft and a movement conversion mechanism. The swing output shaft partially extends out of the shell and is provided with an output shaft axis, the motor is accommodated in the shell, the driving shaft is driven to rotate by the motor and is provided with a driving shaft axis, the movement conversion mechanism converts rotation of the driving shaft into swing of the swing output shaft, and the output shaft axis is parallel to the driving shaft axis. According to the technical scheme, the portable cutting machine has the advantages that vibration of the portable cutting machine can be low during cutting operation, and the cutting precision and the operation comfort are improved.

The invention discloses a man-machine interaction gesture control method and system. The method comprises S11, performing data preliminary collection on a first marker in the palm of an operator to determine the size threshold value of the first marker in every sampling range when the operator clenches the fist and blocks the first marker; S12, obtaining the size values and the sampling ranges of the first marker in real time, and when the monitored size value of the first marker is smaller than or equal to the size threshold value of the corresponding sampling range, performing S13; S13, continuously monitoring the size value and the sampling range of the first marker in real time within a first preset time and determining whether the monitored size value of the first marker is still smaller than or equal to the size value of the corresponding sampling range; if so, determining whether the change values of the sampling range in the first preset time are larger than or equal to a range change threshold value after the first preset time; if so, performing a first-type gesture control. The man-machine interaction gesture control method and system achieves remote gesture operation and is stable in identification and comfortable to operate.

The invention discloses a switch self-locking structure which comprises a switch trigger and a self-locking structure, wherein the switch trigger is arranged on a main handle, is suitable for operation and can be displaced; the self-locking structure is arranged on the main handle and can lock or release the switch trigger; the self-locking structure at least comprises self-locking triggers and a self-locking sliding block, wherein the self-locking triggers are arranged symmetrically on the main handle; the sliding block can be pushed by the self-locking triggers and can slide axially along the main handle; and the self-locking sliding block and the switch triggers are respectively provided with an interlocking structure. According to the invention, the control of a main switch is realized through the rotary motion of the self-locking triggers, the self-locking triggers are dual-self-locking triggers, as long as any self-locking trigger is pressed, the other trigger is not required to act, the control to the switch can be realized; the switch can be controlled individually or simultaneously, which is more reliable; the plane of motion of a rotary shaft of any self-locking trigger is parallel with that of the switch trigger, and the operation comfort is better.

The invention discloses a position adjusting mechanism and a novel kart, and relates to the technical field of vehicles. The position adjusting mechanism comprises an adjusting assembly, a seat and asliding rail, wherein the sliding rail is installed on the floor of a cab of the kart and is parallel to the floor of the cab; the seat is matched with the sliding rail in a sliding mode; the adjusting assembly comprises a first locking piece, a matching piece and a guide piece which is fixedly connected with the floor of the cab; the matching piece is fixedly connected with the seat and is matched with the guide piece in the sliding mode; and the first locking piece is used for locking the matching piece to the guide piece, so that the matching piece can be locked at any sliding point position. The position adjusting mechanism has the advantages of the simple structure and convenience in use, the operation comfort of a user is favorably improved, and the adaptability to users in differentbody shapes is improved; and additionally, the overall safety and reliability are greatly improved. The novel kart has the advantages of high operation comfort, good adaptability to the users in thedifferent body shapes and high overall safety and reliability.

The invention discloses a kitchen stove and belongs to the technical field of stoves. The kitchen stove disclosed by the invention comprises a panel and a cooking range, wherein a lower concave surface is formed in the panel and comprises a lower concave side surface and a bottom surface fixed on the lower edge of the lower concave side surface; the lower concave side surface and the bottom surface are matched to form a containing space capable of containing a frying pan; the upper edge of the lower concave side surface is fixed on the panel; and at least one cooking range is arranged on the bottom surface. The panel surface of the stove adopts a sinking design, the height of the operation table board and the height of the stove surface are at the optimal positions under the condition that the cabinet table board is positioned on the same horizontal height, so that the optimal operating comfort level is achieved; the horizontal height of the cabinet table board is the same, so that the height of the floor cabinet body is the same, the height of 720mm can be adopted, the dimension standard of international kitchen appliances is met, and standard design and production are promoted; due to the sinking design, the heat loss can be reduced, and the aims of energy conservation and environment protection are achieved; and moreover, due to the underneath type design of the operation knob, oil stains formed in the cooking process are avoided, and the kitchen stove is convenient to clean.

The invention relates to the technical field of food processing, in particular to an efficient food material blender. The blender comprises a blending barrel, a lifting fork, a gear change hand lever,a blending shaft, blending blades and a lifting hand wheel; the lifting hand wheel comprises a driving rod, a driving disc, a driving hand lever, operation through holes, cambered protrusions and cambered ring slots; the gear change hand lever comprises a rotating block, a rotating rod, a hemispherical boss, an anti-skid protrusive strip and a mounting piece, the mounting piece is formed by sequentially connecting a locking protrusive block, a conical ring table and a cylindrical rod, locating protrusive strips are arranged on the side portions of the cylindrical rod, a mounting blind hole isformed in the side portion of the rotating block, a locking ring slot and a conical ring slot are formed in the inlet of the mounting blind hole, and locating grooves are formed in the inner wall ofthe mounting blind hole. The blender has the advantages that the structure is simple, the operation modes of the lifting hand wheel are diversified, and the assembly efficiency of the gear change handlever is high.

The invention discloses a switch self-locking structure which comprises a switch trigger and a self-locking structure, wherein the switch trigger is arranged on a main handle, is suitable for operation and can be displaced; the self-locking structure is arranged on the main handle and can lock or release the switch trigger; the self-locking structure at least comprises self-locking triggers and a self-locking sliding block, wherein the self-locking triggers are arranged symmetrically on the main handle; the sliding block can be pushed by the self-locking triggers and can slide axially along the main handle; and the self-locking sliding block and the switch triggers are respectively provided with an interlocking structure. According to the invention, the control of a main switch is realized through the rotary motion of the self-locking triggers, the self-locking triggers are dual-self-locking triggers, as long as any self-locking trigger is pressed, the other trigger is not required to act, the control to the switch can be realized; the switch can be controlled individually or simultaneously, which is more reliable; the plane of motion of a rotary shaft of any self-locking trigger is parallel with that of the switch trigger, and the operation comfort is better.

The invention discloses a flexible tape welding device. The flexible tape welding device comprises a bottom plate, a circuit board, a circuit board grip slipper, an electromagnet, an electromagnet fixing seat, a flexible tape clamp and a pressure plate, wherein the circuit board grip slipper and the electromagnet fixing seat are mounted on the bottom plate; the pressure plate and the flexible tape clamp are made of materials capable of being attracted magnetically; two ejector pins are arranged at the front end of the pressure plate; and the directions of the ejector pins are perpendicular to the circuit board. The invention further relates to a welding method. The welding method comprises the following steps: fixing the circuit board on the circuit board grip slipper, and clamping a flexible tape by using the flexible tape clamp; attaching the flexible tape clamp to the surface of the electromagnet which is not electrified; manually adjusting matched alignment of a flexible tape bonding pad and a circuit board bonding pad, and electrifying the electromagnet to fix the flexible tape clamp; and placing the pressure plate on the surface of the flexible tape clamp so that end surfaces of the two ejector pins at the front end of the pressure plate drop to the surface of the flexible tape, and operating soldering iron and solder wires to carry out welding by a single person at the moment. The flexible tape welding device is simple to operate, the position is adjusted conveniently, welding accuracy is high, and the production efficiency is improved remarkably.

The invention relates to the technical field of massage devices, and discloses a neck massager and a handle thereof. The handle comprises a shell, a circuit board and a roller key, the shell is provided with an accommodating cavity, the shell is further provided with an expansion section located between the two opposite ends of the shell in the length direction, the cross section area of the expansion section is larger than that of a part, in transition connection with the expansion section, of the shell, a through hole communicating with the accommodating cavity is formed in the outer surfaceof the expansion section, the circuit board is arranged in the accommodating cavity, at least part of the circuit board is located in the expansion section, the roller key is movably arranged on thecircuit board, part of the roller key penetrates the through hole, and the roller key is used for feeding back different signals to the circuit board when different motions happen to the circuit board. Keys do not need to be distinguished, a good key operation fool-proof effect is achieved, and operation of a user is facilitated.

The invention provides a urinary catheter for a urology department. The urinary catheter comprises a rubber tube used for conveying urine, a hard control tube section is arranged on the rubber tube, and a urine guide hole communicated with the rubber tube is formed in the control tube section; the urine guide hole perpendicularly intersects with a valve hole of a blind hole structure arranged in the radial direction of the control pipe section, the hole bottom of the valve hole is of an expanded spherical cavity structure, a horn hole sleeve extending in the depth direction of the interior ofthe valve hole is further arranged at the opening of the valve hole, a large end opening of the horn hole sleeve serves as the opening of the valve hole, a small end opening is coaxially and integrally connected with an opening end of an expansion tube in a round text tube shape, the expansion tube comprises a spherical shell-shaped tube bottom section and a circular tube-shaped body section, andthe elasticity of the body section is weaker than that of the tube bottom section, so that when the expansion tube is inflated with air, the tube bottom section is in an expanded spherical shape and fills the spherical cavity structure at the bottom of the valve hole, and the body section cuts off and seals the urine guide hole. The urinary catheter for the urology department is extremely convenient to use and good in operation feeling.

The invention discloses an arrangement of the relative position between an accelerator pedal and a brake pedal of an automobile. According to the arrangement, the accelerator pedal (1), the brake pedal (2) and a seat (3) are arranged, wherein the accelerator pedal (1) is arranged close to the right side, the front-and-back distance between the accelerator pedal (1) and the seat (3) is smaller than that between the brake pedal (2) and the seat (3), the brake pedal (2) is arranged close to the left side, the front-and-back distance between the brake pedal (2) and the seat (3) is larger than that between the accelerator pedal (1) and the seat (3), and the seat (3) is arranged behind the accelerator pedal (1). According to the arrangement of the relative position between the accelerator pedal and the brake pedal of the automobile, not only does an obvious right-and-left distance difference exist between the accelerator pedal and the brake pedal, but also an obvious front-and-back distance exists between the accelerator pedal and the brake pedal, and the accelerator pedal is arranged to be relatively backer than the brake pedal. In this way, when a foot steps on the brake pedal, the foot needs to stretch a little longer, when the foot steps on the accelerator pedal, the foot needs to bend to shorten a little, therefore, action gestures for manipulating the two pedals have an obvious difference, and the phenomenon that the accelerator pedal and the brake pedal are manipulated by mistake when a driver drives the automobile cannot occur.

The invention relates to a hand-operated neck massager, comprising bracket, a massage ball, an adjusting lever, a fastener and a handle, wherein a neck contain area is formed between the bracket, twoopposite inner walls of the bracket are provided with semicircular inner supports, and the center of the inner supports is provided with an inner support mounting hole; the inner wall of the bracket is provided with a through bracket mounting hole aligned with the inner support mounting hole; the massage ball comprises a ball body and an elastic body sleeved outside the ball body, and the mountingend of the ball body is provided with a section of internal thread; one end of the adjusting rod is threaded to the mounting end of the sphere, and the other end is positioned in the mounting hole ofthe bracket through the inner support mounting hole. The fastener is used for positioning the adjustment lever on the inner support; the handle jacket has a non-slip sleeve made of elastic material.By arranging an anti-slip sleeve made of elastic material on the handle, the operation comfort is good, and the distance between the two massage balls can be adjusted by adjusting the depth of the outer end of the adjustment lever protruding into the mounting hole of the bracket.

The invention provides an operation panel mounting structure of a relay sorting AGV carrying trolley, which comprises a rotating shaft mounting seat, a rotating shaft is arranged on the rotating shaft mounting seat, a panel mounting seat is arranged on the rotating shaft mounting seat and rotates around the rotating shaft, and a touch screen, an operation panel, a reset button and a start button are arranged on the panel mounting seat; the rotating shaft mounting seat is fixed on a trolley body of the carrying trolley; a longitudinal strong magnet and a transverse strong magnet are arranged on the rotating shaft mounting seat, a longitudinal strong magnet suction plate and a transverse strong magnet suction plate are arranged on the panel mounting seat, and a longitudinal strong magnet suction surface is perpendicular to a transverse strong magnet suction surface; the panel mounting seat rotates around the rotating shaft, and when the longitudinal strong magnet suction plate reaches the suction position and is sucked with the longitudinal strong magnet, the transverse strong magnet suction plate is separated from the transverse strong magnet; and when the longitudinal strong magnet suction plate is separated from the longitudinal strong magnet, the transverse strong magnet suction plate reaches the suction position and is sucked with the transverse strong magnet.

The invention discloses a fertilizer application device for plant protection. The fertilizer application device comprises a base, a push rod, a storage box and a rotating shaft; the bottom end of thebase is provided with universal wheels; the bottom end of the base is welded with a partition plate; a first limiting block is embedded and fixed on the partition plate, and a limiting groove is formed in the first limiting block; the push rod is welded with a screw rod; the screw rod is spirally provided with a nut; the storage box is mounted on the base, and a feeding pipe is embedded and fixedon the bottom end of the storage box; a discharging pipe is embedded and fixed on the end, deviated from the feeding pipe, of the storage box; a guide pipe is welded in the storage box; the rotating shaft is rotatably mounted in the guide pipe by a rotating shaft fixing frame and is provided with an engagement fan blade; the end, deviated from a second limiting block, of the rotating shaft is welded with a crank; and a motor is mounted in a motor case by a motor fixing frame. The fertilizer application device has the advantages of push rod height adjustability, relatively high comfort level, uniformity in fertilizer spreading and mixing and convenience in operation.

The invention discloses a general-purpose mechanical handle bar height adjustment mechanism with a limiting function. The general-purpose mechanical handle bar height adjustment mechanism comprises a left handle bar tube, a right handle bar tube and a handle bar tube mounting base. The general-purpose mechanical handle bar height adjustment mechanism is characterized in that coaxial movable umbrella-shaped fluted discs are fixed to the lower end of the left handle bar tube and the lower end of the right handle bar tube respectively. Fixed umbrella-shaped fluted discs meshed with the movable umbrella-shaped fluted discs are fixed to the handle bar tube mounting base. A connecting bolt penetrates through the centers of the two sets of umbrella-shaped fluted discs, and the two sets of umbrella-shaped fluted discs in a meshed state are fastened through a locking mechanism. The tooth surface of each movable umbrella-shaped fluted disc is provided with a limiting boss, and each fixed umbrella-shaped fluted disc meshed with the movable umbrella-shaped fluted discs is provided with a limiting groove. The width of the limiting grooves is larger than that of the limiting bosses. The limiting bosses extend into the corresponding limiting grooves. Through the general-purpose mechanical handle bar height adjustment mechanism, the height of handle bars can be conveniently adjusted, and the general-purpose mechanical handle bar height adjustment mechanism is small in the tap position span, simple in structure and high in operation comfort degree.