60results about How to "Smooth turning" patented technology

The invention provides a push-pull type double-layer cigarette packaging box and an opening and closing method thereof. The packaging box comprises a lower shell (1), an upper shell (2), an inner box (3), a lower-layer inner box (4), a partition plate (35), a U-shaped cutting opening (200), a cutting buckle (210) and a connecting part (5). The inner space of the packaging box is divided into an upper layer and a lower layer through the partition plate (35), and cigarettes with different tastes can be stored in the upper layer and the lower layer respectively. The packaging box can be opened and closed easily by pulling up or pushing down the upper shell (2). The connecting part (5) is matched with the U-shaped cutting opening (200) of the lower-layer inner box (4), and it is ensured that the packaging box is opened and closed stably. In the push-pull process of the upper shell (2), the cutting buckle (210) is clamped on one side of the upper portion of the hollowed-out area (100) on the lower portion of the partition plate (35), and the limiting effect is achieved. The packaging box provided by the invention meets the diversified requirements of consumers on cigarette tastes, improves the user experience, is simple in opening process and is very suitable for industrial production.

The integrated flushing valve comprises a valve body assembly, a first switching mechanism and a second switching mechanism, the valve body assembly comprises a valve body and at least one valve deck, the valve body is provided with a water inlet, a water passing channel, a first water outlet and a second water outlet, the valve deck is connected to the valve body, and the first switching mechanism and the second switching mechanism are arranged on the valve deck. The first valve cavity is located between the water inlet and the water inlet end of the water passing channel, the second valve cavity is located between the water outlet end of the water passing channel and the first water outlet and the second water outlet, and the first switching mechanism partially enters the first valve cavity and controls the water inlet to be communicated with the water inlet end of the water passing channel or not. The second switching mechanism partially enters the second valve cavity and controls the water outlet end of the water passing channel to be communicated with the first water outlet or the second water outlet. According to the utility model, the assembly error among the modules can be reduced, and the reliability and consistency after assembly are improved.

The invention discloses an intelligent gravity center adjusting device for turning rollover prevention of a commercial vehicle, and belongs to the technical field of turning rollover prevention. Comprising a commercial vehicle, the commercial vehicle comprises a vehicle head, a vehicle body is arranged on one side of the vehicle head, a container is arranged at the top of the vehicle body, a driving assembly is fixedly installed between the container and the vehicle body, a plurality of first gravity center adjusting assemblies are fixedly installed on the two sides of the driving assembly, and second gravity center adjusting assemblies are fixedly installed at the two ends of the driving assembly; a detection assembly is fixedly installed on the side, close to the vehicle head, of the second gravity center adjusting assembly, the first gravity center adjusting assembly comprises a hydraulic telescopic rod, a second hinge joint is fixedly installed at the output end of the hydraulic telescopic rod, a second hinge seat is hinged to the second hinge joint, and the top of the second hinge seat is fixedly connected with the bottom of the container. According to the method, the stability of the commercial vehicle can be effectively improved, the rollover risk in the turning process is reduced, and the method has high practical value.

The utility model discloses a kind of flap mechanisms, including box, box cover, baffle, hinge, sheet metal support, spring steel wire and pulley;Box top is equipped with box cover, baffle is fixedly connected in box outer wall one end, hinge is located at baffle both ends, sheet metal support is fixedly installed in baffle one end, spring steel wire rotation is connected in sheet metal support lower side both ends, pulley rotation is connected in one end of spring steel wire.The utility model is compared with prior art's advantage lies in: the utility model utilizes the spring steel wire and the elasticity and torsional force of repeatedly contact cooperation between hinge to promote hinge, when hinge moves back, hinge profile promotes pulley movement, box cover is in open state at this time, the angle of opening and closing is locked by limiting screw and cam limiting boss between pulley and hinge simultaneously, it is convenient to open and close box cover stably, and the present mechanism does not need gas spring, service life is long, the stability when box door cover opens and closes is improved.

A cast ball valve convenient to control and adjust flow comprises a valve braking assembly, a valve rod, a valve seat part, a ball valve and a valve body, the valve braking assembly comprises a driving rod, the upper end of the valve rod is fixedly connected with the driving rod, the ball valve comprises a ball body, the ball body is arranged in the valve body and comprises a spiral guide ball arranged at the upper end of the ball body, and a spiral groove is formed in the periphery of the lower end of the valve rod. Lifting connection between the spiral groove and the spiral guide ball is achieved through cooperation of the spiral groove and the spiral guide ball. The sealing part is fixedly connected to the valve body, the valve seat part is arranged on the ball body, and the valve seat part comprises a first valve seat and a second valve seat; when the valve is completely opened and closed, the left side of the ball makes contact with the sealing part at the P1 position, and the first valve seat, the second valve seat and the sealing part make contact with the P2 position and the P3 position respectively to form sealing fit. In the process from opening to closing of the valve, the ball body and the valve body are not in direct contact to form clearance fit. According to the cast ball valve convenient to control and adjust the flow, in the long-time opening and closing process of the valve, the valve seat and the sealing part do not make continuous contact.

The utility model discloses a fresh-keeping refrigeration house, and relates to the technical field of refrigeration houses, when a person needs to enter the fresh-keeping refrigeration house, the person passes through a laser emitter and shields the laser emitter, a laser receiver cannot receive laser emitted by the laser emitter, and a portrait temperature detector detects a portrait and the temperature of the person. After successful recognition, the air cylinder drives the telescopic rod to move leftwards, the telescopic rod drives the movable door to move leftwards, the movable door leaves the cold storage door clamping groove, the movable door moves on the cold storage door rail, the movable door is tightly connected with the cold storage door rail, opening and closing are more stable, and the door can be prevented from swinging or shaking in the operation process; when people go out of the fresh-keeping refrigeration house, the human image temperature detector detects the human image and the temperature of the people, the people pass through the laser transmitter, and the laser transmitter is shielded by the people after the people go out of the fresh-keeping refrigeration house after the people go out of the fresh-keeping refrigeration house.

The utility model provides a back door folding structure, a folding type back door assembly and a vehicle, and belongs to the technical field of vehicle parts, the back door folding structure comprises a main connecting piece, an auxiliary connecting piece, a switch telescopic piece and a folding telescopic piece; the main connecting piece is connected with the main back door, the auxiliary connecting piece is connected with the auxiliary back door, the main connecting piece is hinged to the auxiliary connecting piece so that the main back door can be hinged to the auxiliary back door, and a hinged shaft between the main connecting piece and the auxiliary connecting piece is parallel to a hinged shaft between the main back door and a car body. The two ends of the switch telescopic piece are hinged to the vehicle body and the main connecting piece respectively, and the two ends of the folding telescopic piece are hinged to the vehicle body and the auxiliary connecting piece respectively. When the back door is opened, the auxiliary back door can be folded and recycled, the overall length of the back door is shortened, the space needed for opening the back door is further reduced, and full-angle opening of the back door in a narrow space is achieved; the main connecting piece, the auxiliary connecting piece, the switch telescopic piece and the folding telescopic piece form a four-connecting-rod mechanism which is stable in structure, and the stability of the back door in the opening and closing process is guaranteed.

The utility model provides a pulley assembly, and belongs to the technical field of pulley assemblies. The first pulley bracket is rotatably connected with the fixed bracket, and a first bearing pulley and a first guide pulley are arranged on the first pulley bracket; the second pulley bracket is rotatably connected with the fixed bracket, and a second bearing pulley and a second guide pulley are arranged on the second pulley bracket; wherein the first bearing pulley and the second bearing pulley are arranged in the vertical direction, the first guide pulley and the second guide pulley are transversely arranged, and the first pulley support and the second pulley support are rotationally connected with the fixed support; each pulley support can rotate relative to the fixed support in the running process, so that the flexibility in the radian direction is provided, and the steering processing capacity of the pulley assembly is greatly improved.

The invention discloses silicon carbide crystal growth furnace equipment convenient to operate, and relates to the technical field of silicon carbide crystal growth furnace equipment. The device comprises a workbench, a crystal growth furnace body is fixed on the upper surface of the workbench, and a top cover is cooperatively arranged at the top of the crystal growth furnace body; a screw rod is rotatably mounted on the upper surface of the workbench on one side of the crystal growth furnace body, the end part of the screw rod is rotatably mounted on a cross beam, and the end part of the cross beam is connected with a support column; a driving structure for driving the screw rod to rotate is mounted on the bottom side surface of the worktable; an arc-shaped rail is arranged on the upper surface of the workbench with the lead screw as the circle center, and a sliding block moving along the arc-shaped rail is installed at the bottom end of the supporting column; installation lugs are arranged on the periphery of the top cover, the supporting column movably penetrates through one installation lug, and a nut matched with the lead screw is installed on the other installation lug. By means of the mechanical cover opening mechanism composed of the lead screw, the arc-shaped rail and the driving structure, automatic and stable opening and closing of the top cover are achieved, and the labor intensity of operators is greatly reduced.

The invention discloses an air tap type airflow fur cleaning machine and method, and relates to the technical field of cotton processing machinery, the air tap type airflow fur cleaning machine comprises an S-shaped lint cotton pipeline and a fan, the fan is connected with an air duct, two air duct branches are formed at the outlet end of the air duct, one air duct branch is connected to the inlet section of the lint cotton pipeline, and the other air duct branch is connected to the outlet section of the lint cotton pipeline. The other air duct branch is connected to the outlet section of the lint cotton pipeline; an outlet of the air duct branch is provided with an air tap, an air flushing opening is formed between the air tap and the inner wall of the lint cotton pipeline, and air is jetted out of the air flushing opening through the air duct to form air jet. According to the air jet principle, the ginned cotton speed and the wall attachment property of the ginned cotton are improved, the centrifugal force of impurities is increased, the impurities are easily separated in the ginned cotton at the impurity discharging opening, and the impurity discharging rate is increased.

The invention provides a vision tracking training early education toy with a built-in projection function, and relates to the technical field of vision tracking toys, the vision tracking training early education toy comprises a reciprocating motion toy, and the reciprocating motion toy comprises a shell serving as an integral framework to play a supporting and protecting role; the shell cover is detachably mounted at the port of the shell to close the shell and protect the interior of the shell; the projection part is arranged in the shell, can rotate along with the shell and keep the position unchanged, and can project different images; the eccentric module can adjust the overall gravity center position; the whole body can be driven by the moving part to transversely move; the inertia module can brake the moving part to be matched with the eccentric module to enable the whole body to turn over. The toy is driven by the moving part to integrally move in a transverse reciprocating mode, the toy is matched with the synergistic effect of the eccentric module and the inertia module to achieve the overturning action, diversified and non-monotonous movement tracks are formed, meanwhile, low-intensity natural sound generated along with the overturning action can continuously attract the attention of a baby, the baby is guided to actively follow the sight, and the safety of the baby is improved. And the visual tracking capability and the attention concentration degree are effectively exercised.

The utility model discloses a brake caliper turning fixture which is characterized in that the brake caliper turning fixture comprises a rotary fixture body, a positioning plate and a pressure head, the positioning plate is arranged at the front end of the rotary fixture body, a brake caliper containing cavity is arranged between the positioning plate and the rotary fixture body, and a cylindrical pin and a diamond pin are arranged on the positioning plate. When the brake caliper is positioned to the cylindrical pin and the rhombic pin and the rotation axis is kept coaxial with the axis of the rotation clamp body, the pressure head is slidably arranged on a central shaft hole of the rotation clamp body, a guide groove is formed in the pressure head, a guide pin limited in the guide groove is arranged on the rotation clamp body, and one end of the pressure head extends into the brake caliper containing cavity to abut against the rear end of the brake caliper. And the other end of the pressure head is connected with an ejector rod on the lathe. The clamp has the advantages that the coaxiality of the clamp and a lathe spindle after clamping is high, the balance block is arranged on the clamp body for dynamic balance adjustment, the clamp body rotates stably, displacement is avoided, machining precision is guaranteed, clamping of the clamp is convenient, and machining efficiency is improved.

The invention discloses a command and defense movable square cabin for emergency security communication, and relates to the technical field of command and defense square cabins, the command and defense movable square cabin comprises a main cabin body, a mounting frame is mounted at the traction end of the main cabin body, a traction frame is rotatably connected to the end, away from the main cabin body, of the mounting frame, and a plurality of movable wheels are arranged at the lower end of the main cabin body; side cabin bodies are connected to the two sides of the main cabin body in a sliding mode, the width of the interior of each side cabin body is one third of the width of the main cabin body, command operation mechanisms are arranged in the side cabin bodies and the main cabin body, and an unfolding moving mechanism is arranged at the lower end of the main cabin body. The single-vertical-column multi-layer integrated control tables are arranged in the main cabin body and the two side cabin bodies, after the side cabin bodies are unfolded, the main cabin body can contain many workers for command operation, and when the side cabin bodies are unfolded, the moving wheels are rotated to be the same as the unfolding direction of the side cabin bodies, so that unfolding and folding of the side cabin bodies are facilitated.

The utility model relates to the technical field of greenhouse equipment, in particular to an automatic ventilation adjusting window device of a traditional Chinese medicine seedling greenhouse, which comprises a window frame, an inner sleeve window and an opening and closing component are arranged on the window frame, the opening and closing component comprises an opening and closing motor and a long shaft, the opening and closing motor drives the long shaft to rotate, and a plurality of driving levers are fixed on the long shaft. According to the automatic ventilation adjusting window device of the traditional Chinese medicinal material seedling growing greenhouse, through a worm and gear transmission mechanism, automatic locking can be achieved after a ventilation window is adjusted to a designated position by means of the self-locking characteristic of a worm and gear, automatic movement or accidental opening and closing of an inner sleeve window caused by strong wind is avoided, and the wind interference resistance is enhanced; stable and accurate opening and closing control of the ventilation window can still be realized in severe weather, and a stable greenhouse environment is provided for seedling culture of traditional Chinese medicinal materials.

This invention provides an axial thrust anti-runaway mechanism for testing applications. It includes a fixed base, an adjusting screw assembly, and a rotor end support block. The fixed base is used for fixing and resisting thrust in the axial thrust anti-runaway mechanism. The fixed base is connected and fixed to the axial thrust anti-runaway air foot via the adjusting screw assembly. The rotor end support block is connected and fixed to the engine rotor. An encoder is installed on the axial thrust anti-runaway air foot for displaying and monitoring the angle during rotor rotation. A miniature sensor is installed at the center of the axial thrust anti-runaway air foot to monitor and verify the axial runaway value during rotor rotation in real time. When energized, the axial thrust anti-runaway air foot limits the rotor's axial runaway. The adjusting screw assembly is used to axially stop the rotor under the premise of fine-tuning the angle of the axial thrust anti-runaway mechanism. This invention allows the rotor to both rotate and be axially stopped. Rotating the rotor allows simultaneous viewing of the rotor rotation angle and axial runaway value, achieving both axial stopping and measurement of the rotor.

The application relates to a barrel cover lifting device for a stirring cylinder, and relates to the technical field of material stirring equipment.The barrel cover lifting device comprises a rack, a lifting frame, a lifting assembly and a connecting assembly.The rack is installed on one side of the cylinder, and the rack is provided with the barrel cover.The lifting frame is arranged on the rack in a liftable mode.The lifting assembly is installed on the rack, and is used for driving the lifting frame to lift.The connecting assembly is installed on the lifting frame, and is used for mounting the barrel cover on the lifting frame.The opening and closing process of the barrel cover is rapid and stable, the preparation time required for feeding, cleaning or maintenance is greatly shortened, and the overall operation efficiency and the production rhythm of the equipment are effectively improved.

This utility model discloses a battery casing and a lithium battery, belonging to the field of lithium battery technology. The casing includes an explosion-proof hole that penetrates one side plate of the casing. The side plate includes a first plane and a second plane arranged opposite to each other, with the second plane facing the battery cell. A reinforcing bracket is provided along the outer periphery of the explosion-proof hole on the second plane, protruding away from the second plane. The outline of the reinforcing bracket's orthographic projection on the second plane matches the outer periphery of the explosion-proof hole. The reinforcing bracket of this utility model improves the strength of the casing, preventing deformation of the casing under high internal pressure and ensuring stable opening of the explosion-proof valve. Moreover, the reinforcing bracket also supports the battery cell. When the battery cell expands or shifts, the reinforcing bracket blocks the cell, preventing blockage of the explosion-proof hole and ensuring smooth venting.

The utility model discloses a tricycle independent suspension system belongs to tricycle suspension technical field, including two mounting brackets, the mounting bracket one side is installed with second universal transmission mechanism, and second universal transmission mechanism output end is connected with the mounting disc head, still includes reduction gearbox and transmission rod, reduction gearbox both sides output end all are connected with first universal transmission mechanism, and reduction gearbox one side fixed mounting has drive motor, and drive motor output shaft is connected with the transmission gear one side in reduction gearbox, in the utility model, through setting up two mounting brackets, through two mounting brackets respectively with tricycle frame installation, make the rear two drive wheels directly disconnect the axis connection, and then make tricycle when one side drive wheel meets the bump, make the drive wheel movement of this one side not or very few directly transmit to the drive wheel of another side to the car body vibration and impact feeling of big -size reduction, promote the riding comfort.

The present application relates to a connecting rod device, a sunroof movement mechanism, a sunroof and a vehicle, wherein the connecting rod device comprises a front sliding member, a rear sliding member and a steel wire flexible shaft connected between the front sliding member and the rear sliding member, wherein the steel wire flexible shaft comprises a round steel wire shaft core and multiple layers of fine round steel wires wound outside the round steel wire shaft core. In the connecting rod device of the present application, the steel wire flexible shaft is not easily deformed when sliding in the flexible shaft slide groove of the guide rail, the movement amount is small, the transmission is reliable, and the transmission position deviation is small, the sunroof movement mechanism will not be stuck and fail, and the window opening position is accurate.

The invention relates to the technical field of valve driving, in particular to a high-pressure opening and low-pressure maintaining valve driving circuit based on a monostable trigger, which comprises a monostable trigger output module and a valve driving module, and the output end of the monostable trigger output module is connected with the input end of the valve driving module. The monostable trigger output module inputs the high-level control signal into the valve driving module to drive the electromagnetic valve, the monostable trigger output module is used for generating the high-level control signal with a fixed time length, and the valve driving module is used for driving the electromagnetic valve; through general electronic devices, the high-voltage opening time can be controlled, it is guaranteed that the electromagnetic valve is opened stably and kept in an opening state under low voltage, the problem that the electromagnetic valve is in a high-voltage closing state for a long time, power consumption is too large, and consequently temperature rise is caused is solved, loss of the electromagnetic valve is reduced, and the service life is prolonged.

The present application discloses a kind of heavy die test press machines, including body frame, main oil cylinder, body frame is made of lower crossbeam, column and upper crossbeam.Key features include slider, lifting cylinder, motor, friction stopper and moving platform.Slider includes rotary slider, pressurized slider and side slider, wherein pressurized slider is installed in frame by guide rail, connected with main oil cylinder.Side slider moves up and down through guide assembly and guide rail, and double-side lifting cylinder drives its action.Rotary slider connects two side sliders through rotary shaft, and motor is installed on side slider, rotary motion is realized through driving gear and rotary gear.Moving platform is installed on lower crossbeam, used for installing lower die.Through innovative double-side synchronous drive and gear set driving, the test press machine improves system stability, rotary load capacity and test function, and provides significant technical advantage for large, heavy die test requirements.

The invention relates to a three-axis hinge and an electronic machine using the three-axis hinge. The present invention provides a three-axis hinge which is suitable for a thin electronic device and has a fast switching speed, high efficiency and good operability, the three-axis hinge comprising: a first hinge shaft assembled on a first housing side through a first bracket; the second hinge shaft is assembled on the second frame body side through a second bracket; one end of the first connecting component is connected with the first hinge shaft, one end of the second connecting component is connected with the second hinge shaft, and one end of the first connecting component and the opposite end of the second connecting component are connected with the third hinge shaft; according to the gear type synchronous rotating mechanism, the rotating action of any one of the first hinge shaft and the second hinge shaft generated by the opening and closing operation of the first frame body and the second frame body can be transmitted to the other hinge shaft through the third hinge shaft, so that the third hinge shaft can move back and forth along with the opening and closing operation of the first frame body and the second frame body.

The clamping device comprises a clamping platform, a horizontal clamping station and a vertical clamping station are arranged on the clamping platform, a lower rotating roller set for supporting a rolling pipeline is rotationally installed on the clamping platform and located on the horizontal clamping station, and a lower rotating roller set for supporting the rolling pipeline is rotationally installed on the clamping platform and located on the vertical clamping station. A horizontal clamping supporting frame is further fixedly installed on the clamping platform, an upper rotating roller set for pressing a pipeline downwards is installed on the horizontal clamping supporting frame in a lifting mode, the lower rotating roller set is driven by a rotating power device to rotate, and the upper rotating roller set is driven by a lifting power device to ascend and descend. A clamping chuck is rotationally mounted at the position, located on the vertical clamping station, of the clamping platform, and the clamping chuck is driven by a rotary power device to rotate; according to the clamping device, the pipeline can be clamped in the horizontal state and the vertical state at the same time, different grinding states are facilitated, and the flexibility is improved.

The application discloses a semitrailer acceleration compensation method, device, equipment and storage medium, and belongs to the technical field of automobile control. The semitrailer acceleration compensation method comprises the following steps: acquiring a planned acceleration, a current hinged angle, a current vehicle speed and a current load mass at a current moment; performing linear interpolation in a preset three-dimensional space based on the current hinged angle, the current vehicle speed and the current load mass to obtain a curve acceleration compensation amount; a horizontal axis of the preset three-dimensional space represents a vehicle speed, a vertical axis represents a hinged angle, and a vertical axis represents a vehicle load mass; and obtaining an acceleration control amount based on the planned acceleration and the curve acceleration compensation amount. The application can correct the problem of reduced longitudinal control acceleration performance of a semitrailer caused by a curve scene, so that the semitrailer can successfully complete turning.

The utility model provides an improved steel structure single-leaf protective airtight door. The improved steel structure single-leaf protective airtight door comprises a door leaf body and a door frame. The door leaf body and the door frame are hinged through the hinge assembly, a first blade plate of the hinge assembly is fixedly connected with the door leaf body, a plurality of installation grooves are formed in the front side wall of the door frame, the sliding seats are fixedly installed in the corresponding installation grooves, and the front end faces of the sliding seats extend out of the front side end face of the door frame. The second blade plate is matched with the sliding seat and can freely slide back and forth along the moving direction of the sliding seat; a plurality of front and back positioning grooves are formed in the front side wall of the right side of the door frame; a plurality of positioning assemblies are arranged on the right side wall of the door leaf body, the left ends of transmission shafts of the positioning assemblies are fixed to the right side wall of the door leaf body, and the transmission shafts are sleeved with positioning rollers. The air-tight door is suitable for the installation environment where the door opening position is small or close to the corner of a building, the defect that a traditional protective air-tight door limits the thickness of a wall is overcome through translation of the door leaf body, and finally the rear end face of the door leaf body is flush with the plane of the wall.

The utility model discloses a diaphragm pump structure. The diaphragm pump structure comprises a pump body; the one-way valve body is arranged on one side of the pump body; the liquid inlet one-way valve is arranged between the pump body and the one-way valve body; the liquid outlet one-way valve is arranged between the pump body and the one-way valve body; the diaphragms are arranged in the pump cavities of the pump body; the diaphragm driving mechanism is arranged on the other side of the pump body and is used for driving each diaphragm to reciprocate; the liquid inlet one-way valve and / or the liquid outlet one-way valve are / is diaphragm type one-way valves. The liquid inlet one-way valve and the liquid outlet one-way valve are diaphragm type one-way valves, fit and separation between the liquid inlet one-way valve and the liquid outlet one-way valve and a flow channel are achieved through elastic deformation, one-way flowing of fluid is controlled, high-precision machining is not needed, use cost is low, limitation of installation angles and positions is avoided, and installation and use are more flexible.

The present application belongs to the technical field of packaging machinery, and in particular, relates to a small sealing machine, including: a sealing machine body, the sealing machine body includes a machine body and a protective cover arranged on the machine body; a traction mechanism, the traction mechanism is arranged on the machine body and used to traction plastic packaging bags; a forming mechanism, the forming mechanism is arranged on the machine body and used to heat and cool the sealing bag; an embossing mechanism, the embossing mechanism is arranged on the machine body and used to roll out stripes on the plastic packaging bag, and the embossing mechanism includes a first embossing wheel and a second embossing wheel arranged at intervals; a tensioning mechanism, the tensioning mechanism is arranged on the machine body and connected to the traction mechanism, and the tensioning mechanism is used to adjust the tension of the traction mechanism; and a touch control screen is also arranged on the machine body. The beneficial effects of the present application are: the entire device adopts a touch screen configuration, which is more convenient to operate, and a protective cover is installed on the machine body, which can protect the machine body, and the structural design of the whole machine is compact, occupies a small area, is relatively light, and has high practicality.

The utility model discloses an electric camping car tire abrasion prevention structure which comprises a folding car body, two direction wheels are arranged at one end of the folding car body, directional wheels are arranged at the other end of the folding car body, a direction rod is further rotationally arranged at the end, provided with the direction wheels, of the folding car body, each direction wheel is provided with a wheel swing arm, and a transmission rod is connected between the two wheel swing arms. The distance between the two wheel swing arms is smaller than or larger than the distance between the two directional wheel rotating shafts, the direction rod is rotationally connected with the middle of the transmission rod, and the direction rod controls the transmission rod to move left and right. Therefore, an Ackerman steering principle is utilized on the folding vehicle body, and the folding vehicle body is turned. The friction with the ground can be reduced, the abrasion of the wheels is reduced, the service life of the wheels is effectively prolonged, meanwhile, the friction force is reduced, turning is smoother, and the follow-up development possibility of the electric camping car is effectively improved.