45results about How to "Short body" patented technology

A waterproof control unit is provided in which: connector housing is fixedly positioned onto circuit board that is mounted onto base; a first seal gap G1 formed of the connector housing and a cover, a second seal gap G2 formed of the connector housing and the base and a third seal gap G3 formed of the base and the cover are included; the first seal gap G1 is formed of a terrace slope portion gap G1b and an outer step flat portion gap G1a and an inner step flat portion gap G1c that are in communication with the terrace slope portion gap G1b; a gap setting protrusion for limiting the gap width is provided at least in the first seal gap G1; and, between the connector housing and the cover, a horizontal movement limitation member are provided for limiting the relative positional relationship between the connector housing and the cover.

The self walking scooter with foldable frame includes front fork, front wheel, connected body pivoted with the vertical shaft, front sliding board on the frame and back sliding board, back wheel under the back sliding board and with mono way overrunning clutch, and stretching spring set under the front and the back sliding boards and making the back sliding board maintain contraction trend. The present invention features the frame comprising mainly two stretching slideways; the front sliding board fixed to the outside of the inner channel section bar; and the back sliding board fixed to the outside of the outer channel section bar. The present invention has the advantages of short body, and easy carrying about and storing.

A waterproof control unit is provided in which: connector housing is fixedly positioned onto circuit board that is mounted onto base; a first seal gap G1 formed of the connector housing and a cover, a second seal gap G2 formed of the connector housing and the base and a third seal gap G3 formed of the base and the cover are included; the first seal gap G1 is formed of a terrace slope portion gap G1b and an outer step flat portion gap G1a and an inner step flat portion gap G1c that are in communication with the terrace slope portion gap G1b; a gap setting protrusion for limiting the gap width is provided at least in the first seal gap G1; and, between the connector housing and the cover, a horizontal movement limitation member are provided for limiting the relative positional relationship between the connector housing and the cover.

A hybridization method between blue tilapia and mandarinfish includes such steps as choosing the blue tilapia as female parent and the mandarinfish as male parent, injecting echolica, squeezing the sperm of male parent to the ova of female one, incubating, raising in aqueium, and raising in pond.

The invention discloses a corn harvester, and belongs to the technical field of agricultural machinery. The corn harvester comprises a power system and a chassis operating system, the chassis operating system has an infinitely variable speed, the front end of an upper frame of a chassis is hinged to a corncob picking table, a main transmission shaft of a stripping machine is positioned on the front side of a main transmission shaft of a corncob elevator, a corncob uniform distribution device is mounted between the corncob elevator and the stripping machine, and a corncob box support and a first power device for driving a corncob box to turn over are positioned in the same vertical plane. The corn harvester is flexible in steering, small in turning radius and convenient to operate, corncob conveying flow is in Z-shaped rotation between the corncob elevator and the stripping machine by the aid of the corncob uniform distribution device, a body is maximally shortened, the corn harvester can be shorter than 7200mm and is particularly suitable for harvesting low crops, high in working efficiency and particularly applicable to harvesting corns in the central plain and wheat rotation areas, and gravity center distribution of the whole harvester is reasonable.

The invention relates to a method for arranging equipment on a fully mechanized coal mining face, in particular to a method for rapidly and stably arranging equipment on the fully mechanized coal mining face. The method comprises the following steps: arranging an equipment train; arranging a belt self-moving machine tail and a transfer smashing machine; arranging a crossheading rubber belt conveyor synchronously; arranging a front transporter head and a back transporter head; arranging a front transporter chute from the transporter head to a transporter tail; paving top and bottom chains of a front transporter; when the front transporter chute is formed on a machine stable, arranging a coal mining machine body; arranging all the rest of front coal mining machine chutes; arranging a back transporter chute from the transporter head to the transporter tail; arranging a hydraulic bracket synchronously; after the hydraulic bracket is arranged and the back transporter chute is formed, arranging a front transporter tail and a back transporter tail. According to the method, transporting and stable arranging processes are improved, so that the stable arranging time is shortened greatly, materials, working time and cost are saved, operation procedures are optimized, the operation efficiency is brought into fully play, and the stable installation speed is increased.

The invention discloses a cable winding and unwinding vehicle for a coal mine, which comprises a tractor, the rear portion of the tractor is connected with the front portion of a vehicle frame, the lower portion of the vehicle frame is connected with tires, a winding drum driving base is installed on the upper portion of the vehicle frame, a cable winding drum is installed on the winding drum driving base, and the winding drum driving base is used for supporting and driving the cable winding drum to rotate; a cable arrangement device and a mechanical arm are installed on the rear portion of the vehicle frame, and a cable conveyor is installed at the tail end of the mechanical arm. A cable is arranged on the cable drum, the cable penetrates through the cable arrangement device to be connected with the cable conveyor, the cable arrangement device is used for arranging the cable, and the cable conveyor is driven by the hydraulic motor to drag the cable to move. The cable winding and unwinding device has the advantage of improving the cable winding and unwinding working efficiency.

The invention discloses a body collapsible self-propelled slide, which comprises the following parts: front slide (1) with front-wheel (18) on the carriage (4), back slide (6) with front-to-back mobile one-way rotating back-wheel (11) and stretching spring (26) of keeping the back slide contracting tendency under the front and back slide, wherein the carriage (4) contains two stretching slideways (5) whose cross section is composed of grooved section bar (5-1, 5-2, 5-3) with interembedding connection; the ball track (5-5, 5-10) is set between two lateral walls of grooved section bar, which concludes balls (5-6, 5-11) of holder (5-7, 5-12) limit separation; the limit component (5-8, 5-9, 5-13, 5-14) is set between two grooved section bars to avoid balls (5-6, 5-11) pull-apart; the front slide (1) is fixed on the outboard of outer layer grooved section bar (5-1) or inner layer grooved section bar (5-2) by vertical downward stretching element (3, 8); the back slide (6) is fixed on the outboard of inner layer grooved section bar (5-2) or outer layer grooved section bar (5-1) by vertical downward stretching element (8).

The invention discloses a folded movable-pulley driving type scooter, comprising a scooter body, a front fork, a folded handle vertical tube, a handlebar, a front wheel, a rear wheel, a driving mechanism and a brake. The folded movable-pulley driving type scooter is characterized in that: the scooter body comprises a scooter beam, a front end tube, a rear fork, a rear panel and a middle panel; the folded handle vertical tube comprises a folded lower piece and a handle vertical tube; the brake comprises a brake handle, a brake cable and a braking sheet; the driving mechanism comprises a pedal lever, a pedal, a warping rod, a movable pulley, a chain, a tension spring, a flywheel and a connecting sheet; the scooter beam is in an arch shape; the rear fork is connected to the rear end of the scooter beam; the front part of the scooter beam is connected with the pedal rod; the front end tube on the front end of the scooter beam is connected with the front fork; a front wheel is arranged on the front fork; the front fork is connected with the folded handle vertical tube; the handlebar is arranged on the folded handle vertical tube; the pedal rod is connected with the warping rod; the warping rod is connected with the movable pulley; the rear fork is connected with the rear wheel; the rear wheel is connected with the flywheel; the chain is connected to the movable pulley and the flywheel in a winding way; the chain is connected with a tension spring in a chaining way; the tension spring is connected with the connecting sheet; and the connecting sheet is connected with the chain.

A hand holding type combined fork arm carrier is mainly composed of a carrier body part, a lifting arm support part and a combined fork arm part. A lifting mechanism composed of a main arm and a movable arm is arranged on the carrier body. The combined fork arm part is composed of fork arms, fork arm sets, fork arm lifting devices, fork arm push devices, hanging racks and a control system. Fork-type loading and carrying can be conducted no matter whether fork insertion space exits below an object or not. One carrier is provided with the two fork arm sets. Each fork arm set is composed of the two corresponding fork arms. Each fork arm is provided with the corresponding lifting device and the corresponding push device which are independent. When goods with no space below are loaded in a forked manner, a wedge opening in the front end of one fork arm of each fork arm set is inserted in a small gap in the lower edge of the carried object, the fork arm is lifted upwards to pry up and expand the gap, the other fork arm of each fork arm set is instantly inserted in the expanded gap, the two fork arms of each form arm set alternately rise to hold the goods still, fall, advance and rise till being inserted to the portion below the goods in a penetrating manner, and then the object can be carried. When unloading is conducted, the two fork arms in each fork arm set alternately hold the goods, fall and retreat till the goods are placed at the stacking position.

The invention discloses a novel touring bicycle. The modern tourism grows vigorously, but the development of the touring bicycle lags behind seriously, so tourists are exhausted and suffer unspeakably in travel. The conventional bicycle is difficult to popularize and use in the tourism and travel because of the existence of some defects. A novel three-wheel bicycle is designed; a foldable seat or couch is adopted as the seat; the two rear legs of the seat are provided with a small wheel respectively; the front end of the seat is hinged to a short beam; the seat and a front driving wheel can be quickly decomposed into one folding chair and one driving wheel through a quick release bolt. A set of independent reciprocating driving and transmission device is arranged on the two sides of the front wheel respectively, two pedals are linked to a chain respectively, and the chains are in transmission with flywheels to drive the bicycle to advance. The front ends of seat armrests are provided with handles and brake levers. Since the bicycle has the obvious characteristics of comfort and safety in riding, convenience in carrying, suitability for people of all ages and the like, and the bicycle is expected to become the novel touring bicycle popular with people.

The invention relates to a measurement tool for an air gap of a water turbine generator set and a measurement method of the tool. The measurement tool comprises a main scale, a vernier scale, a locking screw and a pair of measurement claws. The measurement claws are integrally arranged on the main scale and at one side of the head portion of the vernier scale respectively and symmetric to each other, the locking screw is used for fixing the vernier scale, the measurement range of the measurement tool is within 0-50 mm, the length of the measurement claws is larger than or equal to 300 mm, andit is guaranteed that the effective measurement depth of the measurement tool is 300 mm. The measurement tool is suitable for measuring the water turbine generator set with the air gap of 8-50 mm, andthe problem is effectively solved that the effective measurement length of an existing measurement tool is insufficient, the space of the measurement part is limited, and due to mutual interference,measurement cannot be achieved.

The invention provides a lightweight combined fork arm vehicle. The lightweight combined fork arm vehicle is mainly composed of a vehicle body part, a lift arm rest part and a combined fork arm part. A lift mechanism composed of a main arm and a movable arm is installed on a vehicle body. The combined fork arm part is composed of fork fingers, fork arms, fork arm joints, fork arm joint lifting mechanisms, fork arm joint pushing mechanisms and a hanger. Objects can be forked and carried no matter whether pallet fork insertion space exists below the objects or not. A trolley is provided with two form arm sets. Each fork arm set is composed of two fork arm joints. Each fork arm joint is provided with one independent lifting mechanism and one independent pushing mechanism. When the objects without space below are forked, the fork fingers at the front end of one fork arm joint of each fork arm set are firstly inserted into gaps below the carried objects. The fork fingers are lifted upwards, and the gaps are pried off and expanded. The fork fingers of the other fork arm joint of each fork arm set are immediately inserted into the expanded gaps. The two fork arm joints of each fork arm set alternately rise to lift the goods to stand still, descend, move forwards and ascend till the two fork arm joints are inserted into the portions below the goods, and then the goods can be carried. In the unloading process, the two fork arm joints of each fork arm set alternately lift the goods to descend and retreat till the goods fall at stacked positions.

The invention discloses a corn harvester, and belongs to the technical field of agricultural machinery. The corn harvester comprises a power system and a chassis operating system, the chassis operating system has an infinitely variable speed, the front end of an upper frame of a chassis is hinged to a corncob picking table, a main transmission shaft of a stripping machine is positioned on the front side of a main transmission shaft of a corncob elevator, a corncob uniform distribution device is mounted between the corncob elevator and the stripping machine, and a corncob box support and a first power device for driving a corncob box to turn over are positioned in the same vertical plane. The corn harvester is flexible in steering, small in turning radius and convenient to operate, corncob conveying flow is in Z-shaped rotation between the corncob elevator and the stripping machine by the aid of the corncob uniform distribution device, a body is maximally shortened, the corn harvester can be shorter than 7200mm and is particularly suitable for harvesting low crops, high in working efficiency and particularly applicable to harvesting corns in the central plain and wheat rotation areas, and gravity center distribution of the whole harvester is reasonable.

The invention discloses a combined fork arm van. The combined fork arm van is mainly composed of a van body part, a lifting arm rest part and a combined fork arm part. A lifting mechanism composed of a main arm and a movable arm is installed on the van body. The combined fork arm part is composed of fork arms, fork arm sets, fork arm lifting devices, fork arm pushing devices, hanging frames and a control system. Forked carrying can be conducted no matter whether the lower sides of objects are provided with fork inserting space or not. Each fork arm is provided with the corresponding independent lifting device and pushing device. Wide chains are guided into flat sliding ways to push and pull the fork arms to go forwards and backwards. Each fork arm set is provided with the corresponding two fork arms. The two fork arm sets are installed on the van. When goods are forked, a wedge opening in the front end of each fork arm in each fork arm set is inserted into small seams of the lower edges of the carried objects to conduct upward lifting and prying so as to expand the seams, and the other fork arm in each fork arm set is inserted into the expanded seams immediately; the two fork arms in each fork arm set alternately lift the goods to be fixed, descend, go forwards and ascend; and carrying can be conducted after the fork arms are inserted into the lower sides of the goods in a penetrating manner. During unloading, the two fork arms in each fork arm set alternately lift the goods to descend and go backwards until the goods fall to a stacking position.

The invention discloses a high-efficiency bamboo fungus planting method. The method includes the steps of establishing a base, cultivating a fungus strain, preparing a transplanting land, transplanting the fungus strain and conducting later-period management. The step of establishing the base includes the substeps of selecting a flat wet land with few weeds, cleaning away weeds and broken rock on the land surface, plowing and smashing soil by 15 cm to 20 cm deep, drying the soil in the sun for 3 hours to 4 hours, then evenly spraying disinfecting fluid for sterilization, spraying clear water to wet the land 8 hours to 10 hours later, and establishing a sunshade 15-20 m long, 8-15 m wide and 3-4 m high on the ground, wherein a support of the sunshade is formed by stainless steel pipes, and a plastic film covers the support. The method has the advantages that no antibiotics or hormone drugs are added, needed nutrients are provided according to the characteristics of the bamboo fungus growth process, the cultivating effect is good, cycle is short, yield is high, and few smelliness and rot phenomena occur in the cultivating process.

The invention discloses a folding dual-movable pulley driven vertical riding vehicle, which comprises a vehicle body, a front fork, a folding handlebar stem, a front wheel, a rear wheel, a driving mechanism and a brake, and is characterized in that: the vehicle body consists of a vehicle beam, a front head tube, a rear fork, a positioning shaft, a rear panel and a middle panel; the driving mechanism consists of foot bars, pedals, tilting bars, movable pulleys, chains, tension springs, flywheels and connecting pieces; the driving mechanism is divided into a left set and a right set, which are arranged on the two sides of the vehicle beam; the vehicle beam is arched; the rear end of the vehicle beam is connected with the rear fork; the front part of the vehicle beam is connected with the positioning shaft; two ends of the positioning shaft are sleeved with two foot bars; the front head tube at the front end of the vehicle beam is connected with the front fork provided with the front wheel; the front fork is connected with the folding handlebar stem; handlebars are arranged on the folding handlebar stem; the two foot bars are connected with two tilting bars; the two tilting bars are connected with two movable pulleys; the rear fork is connected with the rear wheel connected with two flywheels; two chains are wound on the two movable pulleys and the two flywheels, and are connected with two springs; the two springs are connected with two connecting pieces; and the two connecting pieces are connected with the two chains.

The invention discloses a folding telescopic automobile. The automobile comprises a front automobile body and a rear automobile body, wherein the rear automobile body is located at the rear end of the front automobile body, a folding telescopic related assembly is arranged at the joint of the front automobile body and the rear automobile body, and the front automobile body and the rear automobile body are connected through the folding telescopic related assembly; on the premise of ensuring firm connection and safe structure, the length and the number of seats of the automobile can be increased and decreased so as to meet different automobile using requirements, the automobile ownership can be reduced, traffic jam can be relieved, and parking difficulty can be reduced, transportation is carried out in an urban area, the automobile body is short, flexible and convenient, and the automobile is unfolded into a large automobile when many people travel, and one automobile can be omitted; the parking space can be saved by folding during parking; family expenditure can be reduced, vehicle use efficiency is improved, and a family can save a vehicle, a parking space, related insurance, maintenance and the like.

The invention provides a through-type carrier-vehicle, which is still composed of wheels, wheel stands, a carriage and other vehicle components. The carrier-vehicle is mainly characterized in that: vertical frame tubes and base plates fixed under the center of the vehicle body are removed permanently; the vehicle is unique in modeling, safe, comfortable, convenient, multipurpose and greatly improved throughput capacity; the passenger and the cargo can enter and leave the vehicle in seconds stably; chairs, beds, tables, sheds and even boats and cases are provided at any time; the vehicle has short vehicle body, low center of gravity, high speed, flexible steering and small wind resistance, and is anti-collision and anti-skid, and does not subvert while stopping; the ground-assisting brake can be paddled for turning in site and quick backing; transporting is easy, obstacles can be passed at a high speed, and buildings and rooms can be entered easily; large pieces and ultra-large pieces can be carried; only 1 / 3 of the bicycle area is needed for folded storage; the operation is easy, the cost is low and the vehicle can be used without learning; the traveling and transportation efficiency is doubled; the vehicle can be used for mobile operations for companies, schools and individuals in noon break, camping, outdoor office and study; the vehicle can be used as special tools for body building, exercising, studying, rest, thinking, entertainment, traveling, processing, natural calamity fighting and first aid, and is a super tool for health preserving, body building, scientific fighting, extra development, studying, innovation, capacity cultivating and wealth and happiness creating of the whole population.

The invention discloses a folding dual-movable pulley driven vertical riding vehicle, which comprises a vehicle body, a front fork, a folding handlebar stem, a front wheel, a rear wheel, a driving mechanism and a brake, and is characterized in that: the vehicle body consists of a vehicle beam, a front head tube, a rear fork, a positioning shaft, a rear panel and a middle panel; the driving mechanism consists of foot bars, pedals, tilting bars, movable pulleys, chains, tension springs, flywheels and connecting pieces; the driving mechanism is divided into a left set and a right set, which are arranged on the two sides of the vehicle beam; the vehicle beam is arched; the rear end of the vehicle beam is connected with the rear fork; the front part of the vehicle beam is connected with the positioning shaft; two ends of the positioning shaft are sleeved with two foot bars; the front head tube at the front end of the vehicle beam is connected with the front fork provided with the front wheel; the front fork is connected with the folding handlebar stem; handlebars are arranged on the folding handlebar stem; the two foot bars are connected with two tilting bars; the two tilting bars are connected with two movable pulleys; the rear fork is connected with the rear wheel connected with two flywheels; two chains are wound on the two movable pulleys and the two flywheels, and are connected with two springs; the two springs are connected with two connecting pieces; and the two connecting pieces are connected with the two chains.

The invention discloses a folded movable-pulley driving type scooter, comprising a scooter body, a front fork, a folded handle vertical tube, a handlebar, a front wheel, a rear wheel, a driving mechanism and a brake. The folded movable-pulley driving type scooter is characterized in that: the scooter body comprises a scooter beam, a front end tube, a rear fork, a rear panel and a middle panel; the folded handle vertical tube comprises a folded lower piece and a handle vertical tube; the brake comprises a brake handle, a brake cable and a braking sheet; the driving mechanism comprises a pedal lever, a pedal, a warping rod, a movable pulley, a chain, a tension spring, a flywheel and a connecting sheet; the scooter beam is in an arch shape; the rear fork is connected to the rear end of the scooter beam; the front part of the scooter beam is connected with the pedal rod; the front end tube on the front end of the scooter beam is connected with the front fork; a front wheel is arranged on the front fork; the front fork is connected with the folded handle vertical tube; the handlebar is arranged on the folded handle vertical tube; the pedal rod is connected with the warping rod; the warping rod is connected with the movable pulley; the rear fork is connected with the rear wheel; the rear wheel is connected with the flywheel; the chain is connected to the movable pulley and the flywheel in a winding way; the chain is connected with a tension spring in a chaining way; the tension spring is connected with the connecting sheet; and the connecting sheet is connected with the chain.

The invention discloses a laser grader which is easy to clean after work and shock-absorbing to protect a hydraulic pump, which comprises a roller screw and a rubber shock-absorbing pad. The right side of the roller screw is provided with a roller, and the upper right of the roller screw is close to the roller. The upper left is provided with a roller hydraulic lifting rod, the top of the roller screw is provided with a bulldozing blade telescopic rod near the left side of the roller, and the top of the roller is near the upper right of the roller hydraulic lifting rod is provided with a motor grader control box. The invention is scientific and reasonable in structure, safe and convenient to use, and the power is provided by an agricultural tractor at a low price. It will not be damaged due to strong vibration during work. At the same time, a bulldozing board is installed in the flat-bottomed shovel of the bottomless box. After the work is completed, the soil accumulated in the box can be pushed out with the bulldozer for easy cleaning.

The invention relates to the field of electric bicycles. An ultra-short electric bicycle provided with a V-shaped frame and a single handle and controlled by hands and feet is characterized in that a front fork fixed seat is arranged on the front portion of the V-shaped frame, a handlebar tube is fixed to the top of the front fork fixed seat, a front fork tube is fixed to the bottom of the front fork fixed seat, and the lower end of the front fork tube is fixed to the central axis of a front wheel; a steering handle is fixed to the handlebar tube, and the steering handle is provided with a left and right steering switch, a front and rear light switch, a (high and low gear) switch, a hand operated brake and a hand controlled electric switch; and a front light is arranged on the front end portion of the V-shaped frame, a bicycle lifting handle is arranged on the middle portion of the V-shaped frame, batteries are arranged on both sides of the V-shaped frame, a rear fork fixed seat is arranged on the rear portion of the V-shaped frame, a rear light is arranged on the rear end portion of the V-shaped frame, a power controller is mounted in the lower portion of the V-shaped frame, foot plates are arranged on both sides of the lower portion of the V-shaped frame, a foot controlled electric switch is arranged on one side of the foot plates, and a foot brake is arranged on the other side of the foot plates. The ultra-short electric bicycle provided with the V-shaped frame and the single handle and controlled by hands and feet is novel in design, light in weight, short in body and far in endurance mileage, a rider can operate with one hand and ride directly into an elevator room, a living room and an office, and the trouble of storing the bicycle and the loss of the bicycle are effectively reduced.

The invention discloses a connecting pipe for novel fire-fighting equipment, and belongs to the field of fire-fighting equipment. The connecting pipe is a metal straight pipe and is characterized in that one end of the connecting pipe is provided with external threads and is connected with an ejector to form an inlet, the other end of the connecting pipe is provided with inner threads and is connected with a nozzle or a spraying hose to form an injection opening, moreover, the diameter of a main body part of the connecting pipe is the same as the diameter of the inlet, and the part between theinjection opening and the main body part is in a conical surface to be shrunk; a plurality of planes are evenly pressed on the outer wall of the main body part of the connecting pipe along the circumference, so that the positions, corresponding to the planes of the outer wall, of the inner wall of the main body part protrudes, and concave-convex surfaces which are uniformly staggered along the circumference are formed on the inner wall of the main body part; and a row of annular reinforcing ribs are arranged in the middle of the outer wall of the connecting pipe. According to the connecting pipe for the novel fire-fighting equipment, the defects of existing foam fire extinguishing equipment are overcome, and the effect of being rapidly foamed is achieved, so that the connecting pipe has the characteristics that a pipe body is short, foaming is fast, the cost is saved, continuous foaming can be achieved without a foaming barrel, safety and durability are achieved and the service life is long.

A hybridization method between blue tilapia and mandarinfish includes such steps as choosing the blue tilapia as female parent and the mandarinfish as male parent, injecting echolica, squeezing the sperm of male parent to the ova of female one, incubating, raising in aqueium, and raising in pond.

The invention provides a universal vertical launching turning device which comprises a device shell, wherein two separated engines are arranged at the head of the device shell, a pair of gears which are coaxially and horizontally placed and have different diameters are arranged in the device shell, each gear makes contact with a brake, and an electric control set is connected between the two gears; the electric control set consists of a power supply and a sensor; a wireless receiving module and a sensor control module are integrated on the sensor; an operation module and a wireless transmitting module are mounted on a computer terminal; the sensor control module generates an on-off control signal of the sensor according to a control instruction and sends the on-off control signal to a power generator, and the power generator is started and stopped to brake the gears after receiving the on-off control signal. According to the device, a guided missile can complete steering in a vertical launching process, a gas vane can be replaced, extra space is saved, the missile body is shorter; and after steering is completed, the device is self-thrown to reduce the weight of the guided missile in the attack process, improve the impact and defense capacity of the guided missile and reduce the production cost.

The invention relates to a brake system arrangement structure and a motorcycle. The brake system arrangement structure comprises a frame lower cradle comprising a frame lower pipe, a brake oil pump arranged on the frame lower cradle, and a brake pedal, wherein a rocker arm of the brake pedal is connected with a piston rod of the brake oil pump in a driving mode; and the brake oil pimp is located at the position between an engine and a front wheel fender, or located at the position on the adjacent side or the opposite side of the brake pedal. Since the piston rod of the brake oil pump is directly connected with the rocker arm of the brake pedal, an intermediate transmission link can be canceled; thus, the problem of stepping energy transfer loss can be solved, and the braking capacity is improved; in addition, since the intermediate transmission link is canceled, the installation and motion space requirements of the link do not need to be considered during design and manufacturing; andthe reduction of the manufacturing difficulty is benefited, and the application range of the brake system arrangement structure is expanded.

The invention provides a lightweight combined fork arm vehicle. The lightweight combined fork arm vehicle is mainly composed of a vehicle body part, a lift arm rest part and a combined fork arm part. A lift mechanism composed of a main arm and a movable arm is installed on a vehicle body. The combined fork arm part is composed of fork fingers, fork arms, fork arm joints, fork arm joint lifting mechanisms, fork arm joint pushing mechanisms and a hanger. Objects can be forked and carried no matter whether pallet fork insertion space exists below the objects or not. A trolley is provided with two form arm sets. Each fork arm set is composed of two fork arm joints. Each fork arm joint is provided with one independent lifting mechanism and one independent pushing mechanism. When the objects without space below are forked, the fork fingers at the front end of one fork arm joint of each fork arm set are firstly inserted into gaps below the carried objects. The fork fingers are lifted upwards, and the gaps are pried off and expanded. The fork fingers of the other fork arm joint of each fork arm set are immediately inserted into the expanded gaps. The two fork arm joints of each fork arm set alternately rise to lift the goods to stand still, descend, move forwards and ascend till the two fork arm joints are inserted into the portions below the goods, and then the goods can be carried. In the unloading process, the two fork arm joints of each fork arm set alternately lift the goods to descend and retreat till the goods fall at stacked positions.