434 results about "Shock avoidance" patented technology

The utility model discloses a novel mining logging-while-drilling instrument which comprises a measuring instrument body, the measuring instrument body is installed in a groove formed in the outer side of an extending shell, and the outer side of the extending shell is in threaded connection with a protection frame. The bottom of the lower end of the extending shell is connected with the top of a shock absorber arranged in a clamping groove formed in the middle of the upper end of the connecting short section, meanwhile, a threaded cylinder is installed in the middle of the lower end of the connecting short section, a shock-proof spring is arranged on the outer side of the threaded cylinder, the inner side of the threaded cylinder is connected with the drill bit body, and meanwhile the lower end of the shock-proof spring is attached to the upper end of the drill bit body. According to the novel mining logging-while-drilling instrument, a shock absorber, a positioning ring, a positioning rod and a buffer spring are matched for use, so that when a drill bit body conducts drilling, stress is dispersed, damage to an extension shell is reduced, meanwhile, through matched use of a threaded cylinder, a connecting ring, an inserting rod, an inserting seat and a positioning block, the drilling efficiency is improved, and the drilling efficiency is improved. The drill bit body and the connecting short section are connected more stably, and the use practicability is improved.

The invention provides a semi-active suspension control method and device, a storage medium and an electronic device.The method comprises the steps that the road surface feature elevation of a road surface abnormal object of a vehicle in the driving direction is recognized, and the driving speed of the vehicle in the driving direction is detected; calculating a front wheel shock-absorbing opportunity of the vehicle for the road surface abnormal object according to the driving speed, and calculating a shock-absorbing damping coefficient of the vehicle for the road surface abnormal object according to the driving speed and the road surface feature elevation; determining that the front wheels of the vehicle enter a shock absorption control state when the front wheel shock absorption time arrives, and controlling a shock absorber of a front axle suspension of the vehicle based on the shock absorption damping coefficient; judging whether the front wheel is switched from the damping control state to the aftershock control state or not; if the front wheels are switched to the aftershock control state, the aftershock elimination damping coefficient of the vehicle for the road surface abnormal object is calculated according to the running speed, and a shock absorber of a front axle suspension of the vehicle is controlled based on the aftershock elimination damping coefficient; and the driving safety and stability of the vehicle are improved.

The invention provides a magnetic suspension cushioning road condition sensing and active suspension method for an ambulance, and the method comprises the steps: dynamically calculating the current intensity control quantity of each electromagnetic coil according to the injured part of a patient, the injury degree information and the conditions of other uninjured parts of the body through a fuzzy control algorithm, exerting small supporting force on the seriously injured part, and carrying out the dynamic suspension of the patient. Normal supporting force is maintained for uninjured parts; the stretcher position of the injured part is recognized, a directionally focused ultrasonic standing wave field is generated under the sensitive injured part through a phased array ultrasonic transducer array, miniature suspension points are formed on the surface of the body of a patient according to the acoustic suspension principle, local stress is further relieved, and secondary injury to the fracture part is avoided.

The utility model provides a shock-proof anti-theft door which comprises an anti-theft door body, the anti-theft door body is divided into a front plate and a rear plate, the interior of the anti-theft door body is of a hollow structure, a layer of partition plate is further arranged in the anti-theft door body, a plurality of round holes are formed in the partition plate, and the shock-proof anti-theft door further comprises a first sleeve and a second sleeve. A first damping spring and a second damping spring are installed on the outer side wall of the first sleeve and the outer side wall of the second sleeve in a surrounding mode, the end of the first damping spring is fixedly connected with the bottom edge of the first sleeve and the rear side wall of the partition plate, and a monitoring assembly is further arranged on the anti-theft door body in a penetrating mode. According to the shock absorption type anti-theft door, the first damping spring and the second damping spring are used for absorbing external impact force, it is guaranteed that the anti-theft door body is not deformed and damaged by impact, meanwhile, the influence of external wind power can be reduced, and noise generated when the anti-theft door body is impacted by wind is weakened.

The utility model relates to the technical field of AGV transportation equipment, in particular to a steering wheel damping mechanism. The steering wheel damping mechanism is arranged between a supporting table used for installing a rotary table and a bracket used for loading a power wheel set. The rotary table is provided with a rotating axis, and the rotary table is configured to rotate around the rotating axis along with driving of the pair of power wheel sets. The steering wheel damping mechanism comprises a plurality of damping units which are arranged in parallel. The multiple shock-proof units are arranged between the bracket and the supporting table in a rectangular array mode. The shock-proof unit is constructed to buffer the supporting table in the axial direction of the rotary table, and the shock-proof unit is arranged parallel to the rotating axis. The steering wheel damping mechanism ensures the steering stability, and particularly ensures the steering function of the steering wheel during high-speed turning.

The utility model discloses an industrial robot precision force control mechanical clamping jaw which comprises two clamping plates arranged oppositely, a sliding seat and a base, the two clamping plates are connected to the two sides of the bottom of the sliding seat in a sliding mode respectively, the sliding seat is arranged below the base, and a plurality of clamping jaw assemblies are arranged on the opposite sides of the two clamping plates. The clamping jaw assembly comprises a plurality of second electric push rods and clamping jaws, and the clamping jaws are arranged on one sides of the clamping plates. The telescopic supporting rod on the clamping jaw firstly makes contact with the surface of a material, the rubber gasket at one end of the telescopic supporting rod can play an anti-skid role during clamping, meanwhile, the rubber gasket makes soft contact with the surface of the material, the surface of the material is not prone to being clamped and abraded, and meanwhile the second spring at the other end of the telescopic supporting rod can play a further buffering role. And effective damping and shock absorption can be achieved during clamping, a pressure sensor in the clamping jaw can monitor the pressure value when the clamping jaw makes contact with materials, the motion amount of a second electric push rod is adjusted according to the monitored value, and the material clamping force is precisely controlled.

The utility model discloses a rear axle shock-absorbing buffer air suspension mechanism, which belongs to the technical field of automobile shock absorption and particularly comprises two groups of air suspension units, each group of air suspension unit comprises a support unit, a main guide arm is rotatably mounted on the inner side of each support unit, and a shock absorber is hinged to the front end of each main guide arm. A connecting plate is transversely fixed between the front ends of the main guide arms of the two sets of air suspension units, and air bags are installed between the tops of the two ends of the connecting plate and the vehicle frame through installation base plates. Compared with the structural design of a traditional air suspension system, the shock absorber is located at the end of the guide arm, the service life of the shock absorber in the air suspension mechanism can be effectively prolonged, the deflection angle of shaft sleeves at the two ends of the shock absorber can be effectively reduced due to the fact that the shock absorber is located at the tail end of the guide arm, and the service life is prolonged. Therefore, the service life of the shaft sleeves at two ends of the damper is prolonged.

The utility model discloses a tensioning structure, belt tensioner and bicycle relates to tensioning adjustment technical field, wherein the tensioning structure includes connecting piece, pressing piece and elastic piece, connecting piece includes first connecting section and second connecting section, first connecting section and second connecting section are fixedly connected, first connecting section is used for connecting with the supported object, and second connecting section is used for connecting with the supported object. The second connecting section is used for being connected with a support; the pressing piece is detachably arranged on the second connecting section; the second connecting section is sleeved with the elastic piece, the elastic piece comprises a first torsion arm and a second torsion arm, the first torsion arm abuts against the supporting object in a limiting mode, the second torsion arm abuts against the pressing piece in a limiting mode, and the elastic piece can be used for buffering vibration force transmitted to the supporting object by the supporting object; when the tensioning structure provided by the utility model is arranged in the belt tensioner, the belt can be kept in a safe range to work normally in a shock-proof stroke of the bicycle or after the stroke is finished.

The invention relates to the technical field of vehicle shock absorption detection, in particular to a motorcycle shock absorption performance testing tool which comprises a reciprocating swing mechanism and a reciprocating lifting mechanism, a rotating disc and a bearing seat are fixed to the surfaces of the extending ends of the reciprocating swing mechanism and the reciprocating lifting mechanism respectively, and a rotation driving mechanism is arranged in the reciprocating lifting mechanism; the conical driving tooth holder is driven by the lead screw lifting mechanism, and the conical driving tooth holder is connected with one end, penetrating into the L-shaped frame body, of the rotary driving mechanism, one end of the reciprocating lifting mechanism and one end of the reciprocating swinging mechanism; and the shock absorber mounting bracket is fixed on the rotating disc, and a detection mechanism is arranged on the shock absorber mounting bracket. The device is exquisite in design, has the capability of automatically adjusting the installation direction of the shock absorber, can carry out all-directional and multi-angle performance detection, remarkably improves the detection efficiency, greatly reduces the operation error, guarantees the accuracy and credibility of a test result, and is good in use effect.

The invention relates to the technical field of AGV transport vehicles, in particular to a built-in suspension AGV steering wheel and chassis structure. The AGV steering wheel with the built-in suspension comprises a pair of power wheel sets, a bracket used for installing the power wheel sets, a supporting table and a shock absorption structure. A rotary table used for being connected with the frame is arranged on the supporting table. The rotary table is installed on the supporting table. The rotary table is provided with a rotating axis. The rotary table is configured to rotate around the rotating axis along with driving of the pair of power wheel sets. The pair of power wheel sets is installed on the bracket and is symmetrically arranged along the rotating axis. A rotating shaft of the power wheel set is perpendicular to the rotating axis. The shock-proof structure is arranged between the bracket and the supporting table and comprises a plurality of shock-proof units which are arranged in parallel. The shock-absorbing unit is configured to buffer the supporting table in the axial direction of the rotary table. The shock-absorbing unit is arranged parallel to the rotation axis. According to the built-in suspension AGV steering wheel, the steering stability is guaranteed, and especially during high-speed turning, the steering function of the steering wheel is guaranteed.

The invention relates to the technical field of AGV transport vehicles, in particular to an AGV steering wheel with independent suspension and a shock absorption method. The rotary part of the AGV steering wheel with the independent suspension is provided with a supporting table, the supporting table is provided with a mounting part used for being connected with a frame, and the mounting part is constructed to be connected with the frame through a rotating shaft; the pair of power wheel sets are symmetrically arranged along the axis of the rotating shaft, the power wheel sets are located on the two sides of the bearing table respectively, and the supporting end and the buffering end of the wheel frame are located on the two sides of the walking motor respectively; a connecting shaft is arranged between the pair of power wheel sets, the end of the connecting shaft is connected with the supporting end of the wheel frame, and a stand column used for being connected with the supporting table is arranged on the side wall of the connecting shaft. The damping structure is arranged between the wheel carrier and the supporting table and used for applying downward pressure to the wheel carrier, and a pair of damping units of the damping structure are symmetrically arranged along the axis of the rotating shaft. According to the AGV steering wheel with the independent suspension, the steering stability is guaranteed, and particularly, the steering function of the steering wheel is guaranteed when a vehicle frame is in a no-load state.

The invention relates to the field of new energy automobiles, and discloses a new energy automobile battery shock-absorbing device which comprises a battery box used for storing a battery body, a connecting frame arranged on the outer side of the battery box, a shock absorber arranged on the connecting frame and used for connecting the connecting frame with a new energy automobile chassis, and a protection mechanism, the protective cover is telescopically arranged in the battery box, abuts against the side wall of the battery box and is used for protecting the battery body; the fixing mechanism is arranged on the box cover of the battery box and rotates to clamp and fix the protection mechanism when the box cover and the box body are fixed, the protection mechanism is connected between the battery body and the box cover in an abutting mode, movement of the battery body in the up-down direction can be limited, the battery body can be buffered and protected, and the safety of the battery box is improved. The collision between the battery body and the inner wall of the battery box is effectively reduced, the risk of damage to the battery body is reduced, and the service life and safety of the battery are improved.

The utility model discloses measurement and control equipment convenient to transport, which comprises a measurement and control equipment body arranged in a first shell, second shells are fixedly connected to the outer walls of the two sides of the first shell, connecting rods are rotatably connected to the tops of the second shells in an inserted mode, and fixing plates are fixedly connected to the interiors of the second shells. A fixing plate is fixedly connected to the inner wall of the bottom of the second shell and rotationally connected with the connecting rod, two springs are fixedly connected to the bottom of the fixing plate, a sliding plate is movably connected to the inner wall of the bottom of the second shell, the springs are fixed to the sliding plate, two universal wheels are fixedly connected to the top of the sliding plate, and an avoiding groove is formed in the sliding plate. According to the measurement and control equipment, a worker can conveniently transport the measurement and control equipment body in a labor-saving mode, meanwhile, the connecting rod can be prevented from being collided easily to cause automatic rotation through matched use of the non-slip mat and the fixing ring, and shock absorption can be conducted on the measurement and control equipment body through the shock absorber.

The present invention provides a fully floating oil-gas shock absorption buffer system applicable to underground trackless vehicles, belonging to the technical field of underground trackless vehicles, which includes a bidirectional fully floating swing frame, a shock absorption buffer hydraulic cylinder, an accumulator, an electro-hydraulic integrated control valve, and a controller; the bidirectional fully floating swing frame includes swing frame Ⅰ, swing frame Ⅱ, a connecting frame, and a connecting seat. This patent can effectively improve the technical problem that the front and rear wheels relatively jump due to the unevenness of the road surface in the front and rear, achieve bidirectional buffering, and can dynamically adjust the stiffness (softness and hardness) of the shock absorption buffer system according to the road surface conditions, effectively reducing the severe bumps during the vehicle's driving.

The utility model relates to a baby carriage shock absorption structure and a baby carriage. The baby carriage shock absorption structure comprises a baby carriage body (1) and at least one shock absorber (2). Sliding grooves (10) are formed in the two sides of the bottom of the baby carriage body (1), one end of a sliding rod (11) is rotationally connected into each sliding groove (10), and the other end of each sliding rod (11) is fixedly connected with a supporting rod (12). One end of the shock absorber (2) is connected with the supporting rod (12), the other end of the shock absorber (2) is connected with the positioning rod (3), and the positioning rod (3) is fixedly arranged on the baby carriage body (1).

The utility model relates to a shock-proof stroke pre-adjusting structure of a seat cushion pipe, which comprises a shock-proof pipe group, a seat bone and an adjusting connecting rod group arranged between the shock-proof pipe group and the seat bone, the shock-proof pipe group is provided with a seat pipe, the seat pipe is provided with a shock-proof piston rod capable of generating an elastic shock-proof stroke, and the adjusting connecting rod group is connected with the shock-proof piston rod. The adjusting connecting rod group is provided with an upper connecting seat and a lower connecting seat which can be respectively pivoted on the shock-absorbing tube group and the seat bone, a buffer cushion block is selectively arranged on the surface of one side of the upper connecting seat corresponding to the lower connecting seat, and a pressing roller is arranged on the surface of one side of the lower connecting seat corresponding to the shock-absorbing piston rod. Therefore, the return position of the seat bone can be changed through the thickness of the buffering cushion block, a pre-pressing shock-proof stroke with different lengths is generated, the shock-proof pipe set with the same specification can be suitable for different vehicle types, and further the material preparation cost of a vehicle factory can be effectively reduced.

The utility model relates to the technical field of dental implants, in particular to a positioning ring for digital dental implants, which comprises a ring body, an anti-slip component is fixedly connected to the outer side of the ring body, the anti-slip component comprises an anti-slip ring, a groove is arranged on one side of the outer ring of the anti-slip ring, the tail end and the inner side of the lower side of the ring body cling to a T-shaped damping ring, and a chute is arranged on the inner side of the upper end of the ring body. A tooth groove is formed in the outer side of the top end of the ring body, the inner side of the tooth groove is tightly attached to the shock-absorbing assembly in a clamped mode, the shock-absorbing assembly comprises a clamping rubber block, a rubber shock-absorbing ring is fixedly connected to the outer side of the upper section of the clamping rubber block, a clamping groove is formed in one side of an inner ring of the rubber shock-absorbing ring, a rubber clamping ring is arranged on the inner side of the clamping groove, and a shock-absorbing limiting ring is fixedly connected to one side of an inner ring of the rubber clamping ring. According to the dental implant, the safety and the efficiency of a dental implant operation are improved, meanwhile, the discomfort of a patient is reduced, and the dental implant is an innovative auxiliary tool.

The utility model relates to the technical field of box body wheel sets, in particular to a shock-proof stable wheel set for a box body. The problems that when an existing box moving wheel set passes through some bumpy road surfaces, vibration is large, a damping mechanism is lacked, the box moving wheel set is not suitable for running on rough road surfaces, and the bearing capacity of the box moving wheel set is poor are solved. According to the design, when the wheel set is used, by arranging the damping assembly, when the wheel set passes through some bumpy road surfaces, a fixing plate on the steering mechanism moves up and down in a mounting sleeve and a fixing sleeve, under the action of a damping spring, damping and filtering can be conducted on the box body, the influence of vibration on the box body is reduced, and the overall bearing capacity of the wheel set is improved; the buffer sleeve can play a good role in buffering and damping, the damping and filtering effect on the bumpy road surface is further guaranteed, the reinforcing base is arranged, the strength between the mounting base and the fixing sleeve can be improved, the situation of breakage is avoided, the firmness between the wheel set and the box body is improved, and the service life of the wheel set is prolonged. The service life of the wheel set is prolonged.

1. The name of this design product: Frame (Renault four-link). 2. Purpose of this design product: shock-absorbing frame of electric bicycle. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

The utility model relates to the technical field of robots, and discloses a transport robot, comprising a vehicle body, a suspension mechanism and a walking mechanism. The vehicle body is suitable for transporting materials, the suspension mechanism comprises at least four frame shock-absorbing mechanisms and at least four wheel group shock-absorbing mechanisms, the wheel group shock-absorbing mechanisms are respectively connected to the vehicle body for rotation, the wheel group shock-absorbing mechanisms are symmetrically arranged on both sides of the vehicle body in pairs, the frame shock-absorbing mechanism is arranged between the vehicle body and the wheel group shock-absorbing mechanism, and at least four walking mechanisms are correspondingly connected to the wheel group shock-absorbing mechanisms for rotation. The utility model arranges the suspension mechanism between the vehicle body and the walking mechanism, and can provide reliable shock-absorbing performance when driving on complex roads through the wheel group shock-absorbing mechanism, the frame shock-absorbing mechanism can reduce the frequency of the vehicle body swinging, so that the transport robot can drive more smoothly, and the walking mechanism and the wheel group shock-absorbing mechanism are independently connected, so that each walking mechanism can have the high degree of freedom characteristics of independent upper swing angle and lower swing angle.

The utility model provides a scooter frame rear shock-proof structure which comprises a fixing frame fixedly installed on a scooter frame, a connecting shaft is fixedly installed on the fixing frame through a fastener, and the outer sides of the two ends of the connecting shaft are both rotationally connected with rotating frames capable of being used for installing tires. The top sides of the two rotating frames are jointly and fixedly connected with a mounting frame, and the mounting frame is fixedly connected with a mud guard. Shock absorbers are connected to the two sides of the fixing frame. According to the utility model, through the matching of the mounting frame and the mudguard, the mudguard can be connected with the rotating frame, so that the mudguard can move along with a tire when the tire moves relative to the frame due to uneven road surface, and the damage of the mudguard caused by the contact and friction between the tire and the mudguard when the tire moves for an overlarge distance is prevented; and the service life of the product is prolonged.

The invention provides a treadmill running board with heat dissipation, shock absorption and wear resistance, which is mainly characterized in that a soft shock absorption layer and a flexible wear-resistant layer with smaller length and width are sequentially and upwards attached to the top surface of a support plate; two flexible metal heat conduction chaff bodies are longitudinally attached between the soft shock absorption layer and the flexible wear-resisting layer or between the soft shock absorption layer and the supporting plate, the bottom faces of the front ends and the rear ends of the two flexible metal heat conduction chaff bodies are attached to the top face of the supporting plate, and the two flexible metal heat conduction chaff bodies are made of copper foil or aluminum foil. The longitudinal length of the flexible metal heat-conducting chaff is between that of the flexible wear-resisting layer and that of the soft shock-absorbing layer, and the flexible wear-resisting layer is simultaneously attached to the supporting plate and completely covers the two flexible metal heat-conducting chaff and the soft shock-absorbing layer; therefore, when a sporter treads on the running plate of the treadmill, the running plate has the effects of buffering, shock absorption, flow guide, heat dissipation and wear resistance at the same time.

An energy-absorbing quakeproof bed capable of rapidly reducing the size comprises a bed board and a bed top, four square vertical enclosures are arranged on the peripheral vertical faces, perpendicular to the bed board, of the outer edge of the portion, between the bed board and the bed top, of the bed board, and the four square vertical enclosures are located between the bed board and the bed top. Three lifting devices are arranged between the vertical fence and the bed board or the bed top, one lifting device is four supporting rods, and the other lifting device is coupled with'lt, gt and gt '. And the third part is an X-shaped shear type supporting frame, the bed board, the bed top and the vertical enclosure are made of wood, steel, steel-wood mixed or steel-plastic mixed materials, scaffold pipes are recommended to be used as main materials, and the framework is fixedly connected through scaffold buckles. When an earthquake occurs, the bed top and the vertical fence fall down at the same time and are fixed with the bed board into a whole to form a small and firm shock-proof space. The quakeproof bed can be processed and manufactured by the public, and a group quakeproof effect can be quickly realized.

The invention provides a soft soil stratum cast-in-situ bored pile construction device, and belongs to the technical field of cast-in-situ bored pile construction. Comprising a construction base, a tamping punching structure is installed on the lower wall face of the construction base, two sets of shock-proof connecting structures are installed on the upper wall face of the construction base, a hoisting structure is installed on the upper wall faces of the two sets of shock-proof connecting structures, and a tamping power structure is installed on the lower wall face of the hoisting structure; according to the device, the winch drives the tamping hammer to lift, then the tamping hammer hammers the construction ground under the action of gravity, the land is compacted through the land tamping mode and the downward pressure from top to bottom, and therefore the hole diameter of punched holes cannot be affected; the device can punch holes and tamp the land at the same time, the center of the tamped land coincides with a punching pipeline, the land tamping accuracy is guaranteed, punching and land tamping are conducted at the same time, and the construction efficiency is improved to a certain degree.

The utility model relates to the technical field of electric vehicles, and particularly discloses a frame and an electric vehicle, and the frame comprises a main body, a seat cask, a rear bottom fork assembly and a shock-proof piece. The two ends of the anti-vibration piece are rotationally connected with the seat cask and the rear bottom fork assembly respectively, the angle range of the inclined included angle A between the anti-vibration piece and the ground is limited to be 30-45 degrees, in this way, in the driving process of a user, the best stability and comfort can be provided for the user, and therefore the driving experience of the user is improved; therefore, the purpose of optimizing the design angle of the shock-proof spring in the prior art is achieved.

The invention discloses a road sweeper fluted disc meshing transmission front wheel with a nitrogen damping function, and relates to the technical field of vehicle engineering, the road sweeper fluted disc meshing transmission front wheel comprises a front fork weldment, deep groove ball bearings III are mounted on the two sides of the front fork weldment, and crank weldments are connected to the outer sides of the deep groove ball bearings III in a sleeving manner; nitrogen buffer shock-proof modules are installed at the bottom of the front fork weldment and the top of the crank weldment and used for reducing shock of the sweeper in the running process. The nitrogen buffer shock-proof module comprises spring seats installed at the bottom of the front fork weldment and the top of the crank weldment, and a nitrogen shock absorber is installed between the lower set of spring seats and the upper set of spring seats. Through the nitrogen buffering and shock-absorbing module, the problems that the vehicle is difficult to control and the sweeping operation quality is affected due to bumpy road surfaces can be solved, and the continuity and high efficiency of sweeping operation are guaranteed.

The utility model discloses an automobile shock-proof spring seat which comprises a bottom plate and a spring balance cylinder, a top plate is arranged above the bottom plate, a first limiting plate is arranged below the top plate, a first damper is arranged below the first limiting plate, first spring guide rods are arranged on the left side and the right side of the first damper, and a second spring guide rod is arranged on the left side and the right side of the first damper. First spring guide rods are arranged on the two sides of the first damper, first spring guide rails are arranged on one sides of the first spring guide rods, a first spring is arranged between the two first spring guide rods, a second damper is arranged below the first spring, second spring guide rods are arranged on the two sides of the second damper, and second spring guide rails are arranged on one sides of the second spring guide rods. The spring balance cylinder below the top plate and the four groups of springs are used for buffering the received pressure, the first spring rebounds in a fixed direction when being subjected to impact force through the first guide rod and the first guide rail on the two sides, and meanwhile, the first damper at the top end of the first spring can protect the spring.

The utility model discloses an electric motorcycle which comprises an integral support, a seat board assembly is arranged above the integral support, a front fork assembly, a front wheel and a handle are arranged at the front end of the integral support, the electric motorcycle further comprises a rear wheel upper support, a rear wheel lower support and a shock-proof spring assembly, and the shock-proof spring assembly is arranged on an integral frame. The shock-proof spring assembly is connected with the front end of the rear wheel upper support, the rear ends of the rear wheel upper support and the rear wheel lower support are both connected with the rear wheel, the front ends of the rear wheel upper support and the rear wheel lower support are open, and the shock-proof connecting rod assembly is connected to the openings of the rear wheel upper support and the rear wheel lower support. The structure is comfortable, the shock-absorbing effect is good, a Z-shaped shock-absorbing system is formed through the shock-absorbing spring assembly and the shock-absorbing connecting rod assembly, and the shock-absorbing effect is comfortable; and the pedals are added, so that the bicycle is more comfortable in the running process.

The utility model discloses an electromagnet adjustable shock absorber which comprises a shock absorption cylinder, a sealing guide cover is installed at the top end of the shock absorption cylinder, a first electromagnet is fixedly connected to the bottom of the sealing guide cover and located on the inner side of the shock absorption cylinder, and a second electromagnet is fixedly connected to the bottom of an inner cavity of the shock absorption cylinder. The utility model relates to the technical field of shock absorbers. According to the electromagnet-adjustable shock absorber, the first electromagnet, the second electromagnet, the third electromagnet and the fourth electromagnet are arranged in the shock absorption cylinder, and current transmission of different degrees can be carried out on the electromagnet-adjustable shock absorber, so that the magnetism of the electromagnet-adjustable shock absorber can be changed according to different road surfaces; the distance between the third electromagnet and the second electromagnet and the distance between the third electromagnet and the first electromagnet can be adjusted and controlled in time, grounding is avoided, and the equipment is high in environment adaptability, low in sealing performance requirement, high in response speed, long in service life and good in shock absorption effect.