39results about How to "Realize clutch" patented technology

The present invention discloses a lock head with a lock pith turning idly, and comprises a lock body, a front lock pith and a back lock pith, a locking side column and a sliding block are arranged in the channel of the locking side column of the front lock pith, matched convex and concave channels are arranged on the sliding block and the locking side column and a reset spring for the sliding block is arranged between the sliding block and the end wall of the locking side column channel; a lock pin sliding channel is arranged at the back lock pith and the locking side column of the front lock pith respectively, an end wall is arranged at the lock pin sliding channel which is arranged at the tail of the back lock pith, a lock pin is arranged in the lock pin sliding channel and a lock pin reset spring is arranged between the end walls of the lock pin sliding channel and the lock pin; elasticity of the pin shaft reset spring is larger than that of the sliding block reset spring; at least one of the lock pin or locking side column channel adopts an inclination surface and contacts with the other. A step and a limit gap which are used for stopping and rotting the rear lock pith are arranged at the tail of the lock body. The present invention employs a lock with a lock pith of clutch structure, and effectively prevents unlocking by violation tools.

The invention discloses a centrifugal speed limiting differential mechanism, and belongs to the technical field of automobile differential mechanisms. A planet gear shaft is divided into two sections. The two sections of planet gear shaft are supported and installed at the upper end and the lower end of a planet wheel through conical roller bearings respectively and extend in an inner cavity wall of an outer shell. A lock sleeve and a centrifugal fly weight device are arranged at the two close ends of the two sections of planet gear shaft respectively. A part abutting against the centrifugal fly weight device is arranged on the outer side of the lock sleeve. An engaging fluted disc is arranged on the two close ends of two spline half shafts. A matching structure matched with the lock sleeve is arranged on the outer side of the engaging fluted disc. According to the centrifugal speed limiting differential mechanism, the rotating speed difference of the left half shaft and the right half shaft can be automatically inducted, and the speed limiting differential function is achieved. Centrifugal fly weight type automatic induction is achieved, the structure is simple, and functions are liable. Separation and union of the differential fluted disc is achieved through the friction function, reliable jointing under the high rotating speed is achieved, and meanwhile destructive impact is avoided. The wedge self-locking type engaging fluted disc is adopted, and a certain self-locking function is achieved after jointing.

The invention discloses an automatic transfer switch transmission mechanism. The transmission mechanism comprises a motor, an output shaft and a reduction gearbox, wherein a planetary gear set for clutching the motor and the output shaft is arranged inside the reduction gearbox; the planetary gear set comprises a planetary gear ring and a planet carrier which are mounted in a relative rotating manner; the planet carrier is respectively in transmission connection with the motor and the output shaft; the planetary gear ring sleeves the outer part of the planet carrier; a lug boss (111a) is further arranged on the outer wall of the planetary gear ring; the transmission mechanism further comprises a locking arm which can swing relative to the reduction gearbox; the end part of the locking arm is arranged in the reduction gearbox and corresponding to the planetary gear ring; under the automatic state, the end part of the locking arm can interfere with the lug boss to stop rotation of the planetary gear ring, so as to enable the motor to drive the output shaft to rotate. The automatic transfer switch transmission mechanism provided by the invention is stable in clutch structure, simple and convenient in operation process, and simple in mechanical structure.

The invention discloses a clutch driving device of an electronic lock. The clutch driving device comprises a cam, wherein the cam is connected with a push rod and used for driving the push rod to vertically move; the push rod is connected with a lifting lever through a tensile spring, the lifting lever is arranged on a fixed rotary shaft and rotates around it; the lifting lever is moved around the rotary shaft by the push rod so as to pop out or withdraw the push plate connected with the lifting lever. The clutch driving device is simple in structure; through the rotation of the cam, the vertical movement of the push rod is controlled, and the push rod is further connected with the lifting lever through the tensile spring; the lifting lever is moved around the rotary shaft by the push rod so as to pop out or withdraw the push plate connected with the lifting lever, thus the clutch is realized; besides, the action of the tensile spring cannot damage the cam when the external force pushes the push plate to withdraw.

The invention discloses a shifting fork switching mechanism for a clutch of a washing machine. The shifting fork switching mechanism comprises a connecting disc, a positioning disc and a torque transmission shaft sleeve, a clutch spring is arranged between the connecting disc and the positioning disc, and the clutch spring drives the connecting disc to be matched with the torque transmission shaftsleeve; the shifting fork switching mechanism further comprises a shifting fork arranged on the positioning disc in a rotating mode and a shifting fork driving device for driving the shifting fork torotate, and a boss is arranged at one end of the shifting fork and abuts against the connecting disc; the shifting fork driving device comprises a sliding block, a sliding rail and a tension spring,one end of the tension spring is fixed to a clutch shell, and the other end of the tension spring is connected with the sliding block; when the traction motor drives the sliding block to move along the sliding rail, a dewatering plane, a hand-rubbing washing plane and a common washing plane can be sequentially matched with the shifting fork, so that the shifting fork drives the connecting disc tomove to three different positions, and three different working conditions of the clutch are achieved; and therefore, a deceleration clutch can be switched among a hand-rubbing type washing mode, a common type washing mode and a dewatering mode.

The present invention discloses a clutch structure with a lock pith turning idly, and comprises a lock pith in the lock body. The present invention is characterized in that the lock pith is divided into a front lock pith and a back lock pith, a locking side column matching with a concave channel of the lock pitch marble is arranged in the channel of the locking side column of the front lock pith; a lock pin sliding channel is arranged at the back lock pith and the locking side column of the front lock pith respectively, an end wall is arranged at the lock pin sliding channel which is arranged at the tail of the back lock pith, a lock pin is arranged in the lock pin sliding channel and a lock pin reset spring is arranged between the end walls of the lock pin sliding channel and the lock pin; a concave and convex combination is arranged between the locking side column and the lock pin; at least one of the lock pin or the locking side column channel adopts an inclination surface and contacts with the other. The present invention employs a lock with a lock pith of clutch structure, if a non-matching key is used to unlock, after the key is inserted into the front lock pith, the front lock pith is made to turn idly and the back lock pith fixed with a locking ruler cannot be turned, thus effectively preventing unlocking by violation tools.

The present invention discloses a safety lock head with a lock pith turning idly, and comprises a lock body, a front lock pith and a back lock pith, a double-row marble and locking side column, and a sliding block are symmetrically arranged in the front lock pith, matched convex and concave channels are arranged on the sliding block and the locking side column and a reset spring for the sliding block is arranged between the sliding block and the end wall of the locking side column channel; a lock pin sliding channel is arranged at the back lock pith and the locking side column of the front lock pith respectively, an end wall is arranged at the lock pin sliding channel which is arranged at the tail of the back lock pith, a lock pin is arranged in the lock pin sliding channel and a lock pin reset spring is arranged between the end walls of the lock pin sliding channel and the lock pin; elasticity of the pin shaft reset spring is larger than that of the sliding block reset spring; at least one of the lock pin or locking side column channel adopts an inclination surface and contacts with the other. A step and a limit gap which are used for stopping and rotting the rear lock pith are arranged at the tail of the lock body. The lock can prevent the violent unlocking and reduces the mutual unlocking rate of the lock.

The invention discloses a built-in clutch and a combined motor with the same. The clutch comprises a fixed shell and a clutch component in the shell. The shell comprises a shell body and a cover. The clutch component comprises a magnetic drive member, a non-magnetic driven member and a magnetic slider. The drive member and the driven member are connected concentrically. The drive member is a cam structure with first clamping parts on the outer side. The first clamping parts can drive the slider to rotate and guarantee that the slider does not move radially. The driven member is provided with at least one drive block relative to the outer side of the cam. The inner side of the drive block is provided with second clamping parts. The shell adjacent to the drive member is provided with a magnetic inner annular face. The end face of the slider always attaches to the inner annular face of the shell. The side of the slider always attaches to on the inner side wall between the first clamping parts. When the clutch is closed, the slider is located between the first clamping parts and the second clamping parts, and the drive member can drive the driven member to rotate simultaneously.

The invention provides a sliding block type plate feeding device, and belongs to the technical field of mechanical processing. The sliding block type plate feeding device comprises upper feeding rollers, lower feeding rollers, a swinging bracket, a return spring, a slide block, a connecting rod and a crankshaft, wherein the lower feeding rollers can be rotatably arranged on the base; the right end of the swinging bracket is hinged on a fixed hinged supporting base; the return spring is arranged between the swinging bracket and the base; the upper feeding rollers can be rotatably arranged on the swinging bracket; a hinged ball head at the right end of a connecting bracket is hinged at the left end of the swinging bracket; the left end of the connecting bracket is hinged on a bracket base; the slide block can be arranged on a guide rail of a sliding frame in an up-down sliding manner; the lower end of the slide block is provided with an inclined plane; the inclined plane at the lower end of the sliding block is fitted to the hinged ball head at the right end of the connecting bracket; a drive motor is fixedly arranged on a motor supporting base; the drive motor is connected to one end of the crankshaft; the upper end of the connecting rod is hinged with the other end of the crankshaft; and the lower end of the connecting rod is hinged on the sliding block. The sliding block type plate feeding device realizes continuous intermittent feeding of plates, is simple in structure and is low in cost.

The invention relates to an intelligent lock with a lock cylinder protecting function based on an internet of things. The intelligent lock comprises a main body, a keyboard, a lock cylinder and a handle, and further comprises a protecting mechanism, a cleaning mechanism and a central control mechanism; the protecting mechanism comprises a rotating shaft, a sleeve, a ring, a first driving module, aconnecting module and two transmission modules; the transmission modules comprise support rods, springs, slide blocks, second transmission rods and first transmission rods; and the cleaning mechanismcomprises a lifting rod, a cleaning block, two second driving modules and two lifting blocks. In the intelligent lock with the lock cylinder protecting function based on the internet of things, through the protecting mechanism, the clutching between the handle and the lock cylinder is realized; when the intelligent lock is in a locking state, the influence on the lock cylinder by rotation of thehandle is reduced, and the breakdown probability of the intelligent lock is reduced; and through the cleaning mechanism, dust and water on the keyboard can be cleaned, so that the cleanness of the keyboard is improved, and the sensitivity of the keyboard is improved.

The invention provides a sliding block type plate feeding device and belongs to the technical field of machining. The sliding block type plating feeding device comprises an upper feeding roller, a lower feeding roller, a swing bracket, a reset spring, a sliding block, a connecting rod and a crankshaft. The lower feeding roller is rotationally arranged on a base. The right end of the swing bracket is hinged to a fixed hinge support. The reset spring is arranged between the swing bracket and the base. The upper feeding roller is rotationally arranged on the swing bracket. A hinge ball head at the right end of a connecting bracket is hinged to the left end of the swing bracket. The left end of the connecting bracket is hinged to a bracket base. The sliding block is arranged on a guide rail of a sliding frame in a vertically slidable mode. The lower end of the sliding block is provided with an inclined face. The inclined face at the lower end of the sliding block is attached to the hinge ball head at the right end of the connecting bracket. A driving motor is fixed to a motor support and connected to one end of the crankshaft. The upper end of the connecting rod is hinged to the other end of the crankshaft. The lower end of the connecting rod is hinged to the sliding block. The sliding block type plate feeding device feeds plates continuously and intermittently, and is simple in structure and low in cost.

The invention discloses a clutch structure with an idling lock core, and comprises a lock core inside a lock body. The lock core is composed of a front lock core and a rear lock core; a side lock bar slot on the front lock core comprises a side lock bar and a slider; the slider and the side lock bar are respectively arranged with a boss (matching with a groove) and a groove (matching with a boss); a slider resetting spring is positioned between the slider and the end wall of the side lock bar slot; a latch pin runner is arranged on the side lock bar slot on the rear lock core and corresponds with the front lock core; the latch pin runner inside is positioned with a latch pin; a latch pin resetting spring is arranged between the end wall, inside the latch pin runner and the latch pin; elasticity of the latch pin resetting spring is higher (smaller) than that of the slider resetting spring; at least one of the latch pin (slider) and the side lock bar slot wall (latch pin runner wall) adopts a slope to contact with the other one. The lock with the invented lock core clutch structure can effectively prevent damaging and unlocking the lock core with violent tools.

The invention relates to an automotive transmission device inspection device, and particularly relates to a run-in test rig cylinder driving device applied to an electric vehicle transmission device. The run-in test rig cylinder driving device comprises a support plate, a cylinder, a synchronous pulley, a cylinder fixing cover, a cylinder cover synchronous pulley connecting component, a transmission shaft and a rotary coupling component. According to the invention, the rotary coupling component is used to drive a cylinder to expand and contract to drive the rotary transmission shaft to expand and contract to realize the transmission device clutch; a synchronous pulley spline groove and a transmission shaft spline are in sliding fit; and the cylinder cover synchronous pulley connecting component drives the transmission shaft to slide in the fixed synchronous pulley spline groove, so that the synchronous pulley can drive the transmission shaft to rotate to drive a transmission device gear to rotate and vice versa.

The invention discloses a pressurizing device for a doctor blade of a printing machine, which comprises an ink chamber, the ink chamber and a rotating square shaft are fixed as a whole through a plurality of positioning plates, the ink chamber is parallel to the rotating square shaft, and bearings are installed at both ends of the rotating square shaft On the M-side mounting plate and the G-side mounting plate at both ends, swing arms are respectively provided at both ends of the rotating square shaft. The swing arms are connected to the cylinder, and the cylinder is fixed on the rear support of the cylinder. Screws are fixed on the back of the rotating square shaft, and the other end of each positioning plate is provided with a U-shaped opening slot, which is close to the ink chamber, and a small shaft is inserted between the U-shaped opening slot and the ink chamber to make the U-shaped opening The tank and the ink chamber are fixed as a whole, and each small shaft is equipped with a hand wheel, which is used to lock or loosen the ink chamber and the positioning plate, and tighten the hand wheel to securely fix the ink chamber and the rotating square shaft. It solves the problems in the prior art that it is troublesome to pressurize and adjust the pressure of the scraper in the scraper device, and it is inconvenient to disassemble the ink cavity and the ink seal is not easy to adjust.

The automatic transfer switch transmission mechanism, the transmission mechanism includes a motor, an output shaft and a reduction box, and the planetary gear set used for the clutch between the motor and the output shaft is arranged in the reduction box, and the planetary gear set includes a planetary ring gear installed in relative rotation and the planet carrier, the planet carrier can be connected with the motor and the output shaft respectively, the planet ring gear is sleeved on the outside of the planet carrier, and the outer wall of the planet ring gear is also provided with a boss 111a. The transmission mechanism also includes a lock arm that can swing relative to the reduction box. The end of the lock arm is placed in the reduction box and is arranged corresponding to the planetary ring gear. The end of the lock arm can be connected to the boss in the automatic state. Interference prevents the rotation of the planetary gear and allows the motor to drive the output shaft to rotate. The invention provides an automatic transfer switch transmission mechanism with stable clutch structure, simple operation process and simple mechanical structure.

The present invention relates to a safety lock capable of resisting illegitimate unlocking and picking. Said safety lock includes the following several portions: lock body, lock core placed in the lock body interior, said lock core is divided into front lock core and rear lock core, in the front lock core interior two rows of balls with V-shaped groove are symmetrically set, and a locking side column is set, said locking side column can be matched with said V-shaped groove, on the front lock core a slide block slideway is set, said slide block slideway is communicated with the locking side column groove; on the rear lock core a locking pin slideway is set, said locking pin slideway is correspondent with the front lock core slide block slideway: in the slide block slideway interior a slide block is set, said locking pin slideway has an end wall in the tail portion of rear lock core, between the end wall of locking pin slideway and locking pin a locking pin reset spring is set. Besides, said invention also provides the working principle of said safety lock and its concrete operation method.

The invention discloses a built-in clutch and a combined motor with the same. The clutch comprises a fixed shell and a clutch component in the shell. The shell comprises a shell body and a cover. The clutch component comprises a magnetic drive member, a non-magnetic driven member and a magnetic slider. The drive member and the driven member are connected concentrically. The drive member is a cam structure with first clamping parts on the outer side. The first clamping parts can drive the slider to rotate and guarantee that the slider does not move radially. The driven member is provided with at least one drive block relative to the outer side of the cam. The inner side of the drive block is provided with second clamping parts. The shell adjacent to the drive member is provided with a magnetic inner annular face. The end face of the slider always attaches to the inner annular face of the shell. The side of the slider always attaches to on the inner side wall between the first clamping parts. When the clutch is closed, the slider is located between the first clamping parts and the second clamping parts, and the drive member can drive the driven member to rotate simultaneously.

The invention provides a handwheel of a constant temperature mixing valve, belonging to the technical field of valve. The handwheel resolves the technical problems of the existing constant temperature handwheel that the temperature adjusting range is small and the existing constant temperature handwheel can not be applied in industry, etc. The constant temperature mixing valve comprises a body, an indicating ring and a scale ring positioned between the body and the indicating ring; the body, the indicating ring and the scale ring are arranged on a coaxial line; the body and the scale ring are circumferentially fixed; the body is equipped with a clutch part which is arranged in and connected with the scale ring by sliding; and a clutch structure and a positioning structure are arranged between the body and the indicating ring. The handwheel of the constant temperature mixing valve has precise and firm positioning; the operation of clutch and temperature adjusting can be realized by pulling up the body, rotating the body to a preset temperature and pressing the body down; the use is simple and convenient.

The invention relates to an automotive transmission device inspection device, and particularly relates to a run-in test rig cylinder driving device applied to an electric vehicle transmission device. The run-in test rig cylinder driving device comprises a support plate, a cylinder, a synchronous pulley, a cylinder fixing cover, a cylinder cover synchronous pulley connecting component, a transmission shaft and a rotary coupling component. According to the invention, the rotary coupling component is used to drive a cylinder to expand and contract to drive the rotary transmission shaft to expand and contract to realize the transmission device clutch; a synchronous pulley spline groove and a transmission shaft spline are in sliding fit; and the cylinder cover synchronous pulley connecting component drives the transmission shaft to slide in the fixed synchronous pulley spline groove, so that the synchronous pulley can drive the transmission shaft to rotate to drive a transmission device gear to rotate and vice versa.

The lock core clutch structure capable of idly rotating the lock core of cylinder lock includes a lock core and a locking side pin matching the notch in the lock core marble inside the lock core. It features the lock core separated into a front lock core with the locking side pin and block runner holding a block, and a back lock core with lock pin runner corresponding to the block runner and holding a lock pin and lock pin restoring spring. To the lock with the lock core clutch structure, a non-mating key inserted into the lock core can rotate the front lock core idly only without rotating the back lock core.

The invention discloses a lock with an idling core structure, which comprises a front core and a black core which are all in a lock body; the front core is provided with a side marble, which matches with an angle marble and is formed by a locked column and a small marble, and a sliding block, which is corresponding to the locked column; the sliding block and the locked column are respectively provided with a convex lock (a groove) and a groove (a convex block) which can match with each other; a replacing spring of the sliding block is arranged with the sliding block and the end arm of a locked column groove; on the black core, a bolt sliding groove is arranged corresponding to the locked column groove of the front core; a bolt is put into the blot sliding groove; a blot replacing spring is arranged between the end arm in the blot sliding groove and the blot; the elasticity of the blot replacing spring is larger than that of the replacing spring of the sliding block; at least one of the blot and the blocked column groove has an inclined plane and is contacted with the other at the inclined plane. The lock adopted the on-off core of the invention can successfully prevent the lock from opening by violated tools.

The invention discloses a theft protection disc lock having a lock core capable of idling, which comprises a lock body and the lock core inside the lock body. The lock core is divided into a front lock core and a rear lock core, wherein, the front lock core is provided with a plurality of groups of locking plates, a locking side column, a slider, a cam (a groove) and a groove (a cam) which are respectively arranged on the slider and the locking side column and are matched with each other, and a slider reset spring arranged between the slider and the end wall of the side column; the rear lock core is provided with a locking pin chute, a locking pin arranged inside the chute, and a locking pin reset spring arranged between the end wall of the locking pin chute and the locking pin. The elasticity of the locking pin reset spring is greater than that of the slider reset spring, at least one of the locking pin and the locking side column adopts a slope to be in contact with the other, and steps and locating gaps for stopping and rotating the rear lock core are arranged on the tail part of the lock body. The lock can effectively prevent being unlocked through picking and twisting the lock core violently and reduce the mutually openable rate of the lock.

The invention discloses a lock with an idling core structure, which comprises a front core and a black core which are all in a lock body; the front core is provided with a side marble, which matches with an angle marble and is formed by a locked column and a small marble, and a sliding block, which is corresponding to the locked column; the sliding block and the locked column are respectively provided with a convex lock (a groove) and a groove (a convex block) which can match with each other; a replacing spring of the sliding block is arranged with the sliding block and the end arm of a locked column groove; on the black core, a bolt sliding groove is arranged corresponding to the locked column groove of the front core; a bolt is put into the blot sliding groove; a blot replacing spring is arranged between the end arm in the blot sliding groove and the blot; the elasticity of the blot replacing spring is larger than that of the replacing spring of the sliding block; at least one of the blot and the blocked column groove has an inclined plane and is contacted with the other at the inclined plane. The lock adopted the on-off core of the invention can successfully prevent the lock from opening by violated tools.

The present invention discloses a safety lock head with a lock pith turning idly, and comprises a lock body, a front lock pith and a back lock pith, a double-row marble and locking side column, and a sliding block are symmetrically arranged in the front lock pith, matched convex and concave channels are arranged on the sliding block and the locking side column and a reset spring for the sliding block is arranged between the sliding block and the end wall of the locking side column channel; a lock pin sliding channel is arranged at the back lock pith and the locking side column of the front lock pith respectively, an end wall is arranged at the lock pin sliding channel which is arranged at the tail of the back lock pith, a lock pin is arranged in the lock pin sliding channel and a lock pinreset spring is arranged between the end walls of the lock pin sliding channel and the lock pin; elasticity of the pin shaft reset spring is larger than that of the sliding block reset spring; at least one of the lock pin or locking side column channel adopts an inclination surface and contacts with the other. A step and a limit gap which are used for stopping and rotting the rear lock pith are arranged at the tail of the lock body. The lock can prevent the violent unlocking and reduces the mutual unlocking rate of the lock.

The invention discloses a remote control type multifunctional walking driving device which comprises a frame. A crawler walking mechanism, an engine, a gearbox, a gear pump, a hydraulic control systemand a remote control system are installed on the frame. The walking driving device provided by the invention can be applied to farming operation; a rack is fixedly provided with a convex gear structure of a gearbox; the remote control system can be connected with various different farming assistive devices through flange plates, the stability after connection is high, connection is convenient, the remote control system is controlled through an external wireless remote controller, the functions of steering, clutching, speed changing and the like of a vehicle body can be effectively achieved, and the remote control system is easy, convenient and safe to operate and control and high in practicability.

The invention discloses a water and ink co-feeding device of a commercial printing machine. The water and ink co-feeding device comprises a rubber roller, a plate cylinder, an ink vibrator and a dampening vibrator which are bridged between wallboards at the two sides of the printing machine; the water and ink co-feeding device further comprises an inking roller matched with the ink vibrator, an inking roller and ink vibrator pressure adjusting mechanism, an inking roller and plate cylinder clutch mechanism, an inking roller and plate cylinder pressure adjusting mechanism, a form dampening roller matched with the dampening vibrator, a form dampening roller and dampening vibrator pressure adjusting mechanism, a form dampening roller and plate cylinder clutch mechanism, a form dampening roller and plate cylinder pressure adjusting mechanism, a water and ink co-feeding roller, a water and ink co-feeding roller and inking roller pressure adjusting mechanism and a water and ink co-feeding roller and form dampening roller pressure adjusting mechanism; and the water and ink co-feeding roller is arranged between the form dampening roller and the inking roller and is simultaneously engaged and disengaged with the inking roller and the form dampening roller through the water and ink co-feeding roller clutch mechanism. According to the water and ink co-feeding device, the printing color can be brighter, and the quality of a finished product printed on paper with poor water absorption is greatly improved.

The invention discloses an air suspension control system of a seat of a car. The system consists of a locking mechanism and a suspension control mechanism, wherein one ends of two arc-shaped enclasping pieces of the locking mechanism are hinged together through a hinge shaft, a spring is hooked between the other ends of the two arc-shaped enclasping pieces, rolling line heads of two rolling lines are clamped on the outer sides of a supporting seat, the head ends of the two rolling lines are respectively linked with the head ends of the two arc-shaped enclasping pieces on the outer side of the spring, the inner parts of rolling line adjusting structures are linked with the other ends of the two rolling lines through a rolling line, the two arc-shaped enclasping pieces are fixed on an inner hinge bracket through hinge shafts, the supporting seat is fixed on the inner hinge bracket, the hinge shaft is embraced by the two arc-shaped enclasping pieces, and the hinge shaft and an outer hinge bracket are fixed together; and two cam fans of the suspension control mechanism are fixed on the hinge shaft in a sleeving manner, an air valve is fixed on the lower section of the outer hinge bracket, and the two cam fans respectively come into contact with two valve rods of the air valve. The height of the seat is adjusted by the rolling line adjusting structure, and the engagement and the disengagement between the suspension control mechanism and a suspension machine frame are realized through one rolling line and the spring.