219results about How to "Improve the force" patented technology

The invention provides a battery formation method and a secondary battery. The method comprises the following steps: an electrolyte injection step: injecting an electrolyte into the battery; a clamping step: clamping the side walls of the two sides of the shell through a clamp so as to apply pressure to the large surfaces of the two sides of the naked battery cell along the thickness direction of the shell; a formation step: under a first air pressure, charging the battery to a pre-formation voltage; under the second air pressure, charging the battery to each formation voltage in sequence; wherein the electrode assembly comprises a positive pole piece, and the positive pole piece comprises a positive pole material and at least one lithium supplement agent; the first air pressure and the second air pressure are negative pressure, and the second air pressure is larger than the first air pressure. According to the formation method disclosed by the invention, the large surface of the naked battery cell is clamped by the clamp to apply pressure so as to accelerate the discharge of the formation produced gas under the condition that the pole piece is not wrinkled, and meanwhile, the formation produced gas is extracted from the battery by utilizing a double-negative-pressure breathing formation process and the electrolyte loss caused by exhaust is reduced; therefore, formation produced gas is completely discharged, and the problem of lithium precipitation on a pole piece interface is solved.

The invention relates to a hypocycloidal pin gear speed reducer assembly, a speed reducer and application. The speed reducer comprises an input shaft system, a first output shaft system and a second output shaft system; the number ratio of rotors to stators of the input shaft system is N: (N + 1), the section contours of the rotors and the stators are equidistant lines of a pair of conjugated hypocycloids, the rotors do planetary motion in the stators, the rotors rotate around the centers of the rotors and revolve around the centers of the stators at the same time, and the speed ratio of rotation to revolution is (N + 1): N. An input shaft rotates at the revolution speed of the rotors. Output shafts in the first output shaft system and the second output shaft system are connected through splines on the shafts and rotate according to the difference between the rotation speed and the revolution speed of a rotor, the purpose of speed reduction is achieved, and the speed reduction ratio is N: 1; and the rotor and the stator are made of steel with the hardness of over HRC58. The hypocycloid pin wheel speed reducer has the advantages of being high in transmission efficiency, stable in operation and long in service life, the outer diameter of the hypocycloid pin wheel speed reducer is smaller than the allowable maximum outer diameter of an oil well shaft, the hypocycloid pin wheel speed reducer can be suitable for screw pump oil extraction, and the technical problem that a pin wheel speed reducer cannot be suitable for an oil well all the time is solved.

The invention belongs to the field of roadway support utilization, and particularly relates to a method for improving the bearing capacity of two sides by converting stress of the two sides into surrounding rock of the two sides. The core is that the vertical pressure of the top plate is transferred to the horizontal direction of the two sides, the confining pressure of the two sides is increased, and the bearing capacity of the coal rock mass is increased, so that the bearing capacity of the two sides is improved, the roadway stability is improved, and surrounding rock deformation is controlled. According to the method, U-shaped steel is used as a whole, three-section splicing is adopted, the U-shaped steel support is high in strength and stability and meanwhile has the advantages of being convenient to carry and operate, the junction is connected and fixed through a hoop, the sliding pressure relief effect can be achieved, and the safety of roadway supporting is guaranteed. Anchor cable channel steel is used for reinforcing and stabilizing the support, high-strength slotted steel pipes are driven outside anchor cable drill holes in the two sides to reduce shearing force borne by anchor cables, the support is more stable, the channel steel is arranged in the axial direction of a roadway, point stress of the sides is conveniently changed into face stress, the roadway sides can be stabilized in a larger range, and local point stress concentration is avoided.

The utility model discloses a forklift portal frame applied to an impact working condition, which comprises an inner portal frame, an outer portal frame, a goods blocking frame, a fork arm carrier, an oil cylinder, a roller and a side roller, and the upper end of the outer portal frame is provided with an outer portal frame roller shaft and a threaded hole; the lower end of the inner door frame is provided with an inner door frame roller shaft and a threaded hole; fork arm carrier roller shafts and threaded holes are arranged at the upper end and the lower end of the fork arm carrier, and the threaded holes are used for skid-mounting of side rollers; the roller comprises an outer ring and an inner ring, the inner ring is connected with the outer gantry roller shaft, the inner gantry roller shaft and the fork arm carrier roller shaft, double rows of steel balls and a retainer are arranged between the inner ring and the outer ring, the retainer is used for uniformly separating the plurality of steel balls in each row, and the outer ring and the inner ring are sealed through a sealing piece. The forklift portal frame is simplified in structure and low in cost, the durability of the idler wheels is effectively improved, and the failure rate is reduced. The rigidity is enhanced through an outer wrapping structure, high-position transverse deformation is reduced, and safety is improved. And the fork arm carrier is high in strength and adapts to severe working conditions.

The invention discloses a floating type photovoltaic platform capable of actively absorbing waves. The floating type photovoltaic platform comprises a platform floating body and an active wave absorbing device, the platform floating body comprises a plurality of platform buoys, and the platform buoys are connected through flexible connecting pieces; the active wave absorbing device is connected with the platform floating body; the active wave absorbing device comprises an active wave absorbing plate, an active wave absorbing cabin floating body and a propelling rod; a radar wave measurement sensor is arranged on the active wave absorbing cabin floating body, and a control module is arranged in the active wave absorbing cabin floating body; one end of the propelling rod is connected with the active wave-absorbing cabin floating body, and the other end of the propelling rod is connected with the active wave-absorbing plate; the control module controls the pushing rod to stretch out and draw back according to data of the radar wave measurement sensor, the active wave absorbing plate is driven to move, the technical problems that the sea environment wave condition is poor, and the wave resisting effect of the floating type photovoltaic platform is poor are solved, and the structural strength and stability of the whole platform are enhanced.

The invention discloses a hand screw which comprises a screw body and a hand screwing part, the screw body is composed of a screw rod and a nut, the nut is of a radial structure, and a notch is formed in the end of each emitting strip of the nut; and the hand screwing part is fixed on the screw main body and completely wraps the screw cap. According to the screw, the hand screwing part is fixed to the screw body and completely wraps the nut, the hand screwing part is integrally formed and completely wraps the nut, and therefore the hand screwing part cannot be separated from the screw body; the nut is of a radial structure, a notch is formed in the end of each emission strip of the nut, the multiple notches can improve the connecting performance of the nut and the hand screwing part, and the stability of the nut and the hand screwing part is better; the directions of the notches of the adjacent emission strips are opposite, and the notches in the opposite directions can ensure that the nut and the hand screwing part are well stressed no matter the hand screwing screw is rotated forwards and backwards.

The invention provides a processing workstation and a processing method of a highway T-beam prestressed tendon positioning mesh. The processing workstation comprises a straightening and cutting machine; a bottom short rib discharging buffering system; an abdomen short tendon blanking buffer system; an abdomen long tendon and bottom long tendon blanking buffer system; a belly mesh welding system; the invention discloses a bottom mesh welding and integral tailor-welding system. After the highway T-beam prestressed tendon positioning mesh is formed, the left-right deviation of the installation precision of a corrugated pipe can be controlled to be + / -5 mm, the up-down deviation of the corrugated pipe can be controlled to be + / -3 mm, the installation precision and stress of prestressed tendons in the later period are improved, and the component quality of a prefabricated T-beam is guaranteed.

The invention discloses a door lock which comprises a lock body, a main spring bolt, a driving gear, a driving seat and a grip seat are arranged on the lock body, the main spring bolt is in transmission connection with the driving gear, the grip seat is sleeved with a transmission gear meshed with the driving gear, and the driving seat is in sliding fit with the lock body. A driving motor, a first driven gear, a lifting gear, a damper and a second driven gear are arranged on the driving seat, the second driven gear is meshed with the driving gear, the first driven gear is meshed with the driving motor, a lifting groove is formed in the first driven gear, and a lifting boss inserted into the lifting groove is arranged on the lifting gear; matching teeth and a reset spring are arranged between the first driven gear and the second driven gear, and the damper is meshed with the lifting gear. A pressure spring is arranged between the lock body and the driving seat; an abutting flange is arranged on the peripheral wall of the grip base. The clutch device is simple in structure, rapid in clutch operation response, reliable in transmission structure use and good in use effect.

The invention discloses a low-speed heavy-load traction machine which comprises a machine base, the machine base comprises a first containing cavity and a second containing cavity, a stator and a rotor are arranged in the first containing cavity, a traction wheel is arranged in the second containing cavity, and a main shaft penetrates through the first containing cavity and the second containing cavity and is connected with the rotor and the traction wheel. The first bearing, the second bearing and the third bearing are arranged on the main shaft in a sleeving mode, the two ends of the main shaft extend out of the machine base, and the two ends of the main shaft are connected with brakes. The two brakes are adopted, so that the braking force is enhanced, and the safety performance of the elevator is improved; the machine base is designed to be of an integral structure, the traction wheel is located in the middle, the two ends of the bearing are used for supporting, stress optimization is facilitated, the traction machine is more stable and reliable when bearing large loads, the integral stability of the traction machine is improved, and the service life of the traction machine is prolonged. And by adopting an end cover mounting mode, the brake is more convenient and faster to mount and maintain.

The present invention provides a tunnel boring machine equipped with a high-pressure water jet cutting system and a combined excavation method, including a tunnel boring machine body, a flow pump group is arranged on the tunnel boring machine body, and a high-pressure water jet cutting system is arranged at the front end of the tunnel boring machine; the high-pressure water jet cutting system includes a water jet-mechanical combined cutter disc, a water jet-shell knife combined tool, a high-pressure water transmission pipeline, a multi-media rotation center and a water jet diverter valve block, wherein one end of the high-pressure water transmission pipeline is connected to the flow pump group, and the other end is connected to the multi-media rotation center, and the multi-media rotation center is connected to the water jet diverter valve block, and the high-pressure water is divided into multiple paths, which are respectively supplied to each water jet-shell knife combined tool on the water jet-mechanical combined cutter disc. The present invention provides practical suggestions and references for the overall design, optimization and spatial layout of the high-pressure water jet system.

The utility model discloses a rotary supporting mechanism and a beauty chair, the rotary supporting mechanism is arranged between a base assembly and a seat assembly, the rotary supporting mechanism comprises a rotary ring and a fixed ring, and the rotary ring is rotatably connected to the fixed ring; the fixed ring is connected with the base assembly, the rotating ring is connected with the seat assembly, rotation of the seat assembly is achieved through the rotating supporting mechanism, stress is better and more stable, and rotation is smoother. The push-pull locking part can limit the rotating angle of the rotating ring, after the rotating ring rotates to the needed angle, the seat assembly is not prone to being rotated by external force, use is more convenient, and the experience feeling is better.

The utility model discloses a large-span bridge-floor-free simply-supported tied arch bridge which comprises bridge piers, a first main arch and a second main arch. The first main arch and the second main arch are arranged on the two sides of the arch bridge. The bridge piers are arranged at the two ends of the first main arch and the two ends of the second main arch and connected with the first main arch and the second main arch through supports. The first main arch and the second main arch are each of a four-steel-pipe truss type structure. A first wind brace and a second wind brace are fixedly arranged between the first main arch and the second main arch, straining beams are arranged on the two sides of the arch bridge in the length direction, and a cross beam is arranged between the straining beams on the two sides of the arch bridge and used for bearing a coal conveying pipe belt machine. And suspenders are respectively arranged between the straining beam and the first main arch and between the straining beam and the second main arch. The steel consumption of the large-span arch bridge is reduced, the four-steel-pipe truss type main arch is adopted, the rise of the main arch is reduced, and the transverse stability of the structure is improved; and the suspender tensioning procedure is simplified, and the construction difficulty is reduced.

The present invention relates to the technical field of engineering machinery, and discloses a control method, a controller, a control device and a crane for a crane. The control method comprises: receiving an instruction to change the amplitude of a super-lifting device to a first target angle; limiting the angle of the boom to below a first preset angle; setting the first ratchet and the second ratchet to an unlocked state, so that the first steel wire rope and the second steel wire rope are in a loose rope state; obtaining a first tension value of the first steel wire rope and a second tension value of the second steel wire rope; when the first tension value and the second tension value are both zero, folding the first mast and the second mast until the super-lifting angle formed by the first mast and the second mast is lower than the second preset angle; changing the amplitude of the first mast and the second mast to the first target angle. The present invention can prevent the operator from destroying the balance of the whole machine due to misoperation during the hoisting process, can reduce the loss of structural parts, reduce the failure rate of the crane, and ensure that the operation process of the super-lifting condition is safe and controllable.

The utility model discloses an upper cross beam structure of a closed four-point high-speed precision press, which comprises an upper cross beam, the upper cross beam is of a symmetrical structure, two ends of the upper cross beam are respectively provided with a mounting hole, each mounting hole is respectively provided with a first sliding bearing seat, and at least one mounting hole is provided with a flywheel seat; a first installation seat is arranged in the middle of the upper cross beam, a second installation seat is detachably arranged on the first installation seat, lower bearing seats are arranged at the two ends of the first installation seat respectively, upper bearing seats are arranged at the two ends of the second installation seat respectively, and each upper bearing seat and the corresponding lower bearing seat form a second sliding bearing seat. According to the technical scheme, the upper cross beam is of a unique split type structure, and the first installation base and the second installation base are connected through the attached installation planes and the bolts. On one hand, machining is facilitated, and the overall machining difficulty is reduced; and on the other hand, when the precision deviation of the hole system is detected, fine adjustment can be carried out by repairing the mounting plane.

This invention relates to an adsorption tower and a gas nano-purifier. The adsorption tower includes an outer tube and an inner tube coaxially arranged within the outer tube. The outer tube has a first outlet on its wall. The inner tube includes an inlet section, an adsorption section, and a dust removal section connected sequentially from bottom to top. The inlet section has an inlet on its wall. The adsorption section is filled with adsorbent, and a first filter and a second filter are respectively provided at the connection points between the adsorption section and the inlet and dust removal sections. At least a portion of the sidewalls of the dust removal section is configured as a filter layer. Under purification conditions, the high-pressure gas to be treated enters the inner tube through the inlet, passes sequentially upwards through the adsorption and dust removal sections, enters the annular gap between the inner and outer tubes via the filter layer, and is discharged from the first outlet. Through this configuration, using a tube-in-tube structure with the outer and inner tubes coaxially arranged, the integration of the equipment is improved and its volume is reduced, achieving multi-stage purification of gas within a single component, including diffusion, deep adsorption, and precision dust removal.

The utility model relates to the field of fireworks, and discloses a high-thrust firework which comprises a launching cylinder, sealing paper is fixedly connected to the top end of the inner wall of the launching cylinder, an ignition assembly is arranged on the upper portion of the sealing paper, and a launching assembly is arranged in the launching cylinder. The launching assembly comprises an effect inner cylinder, the effect inner cylinder is pressed at the bottom end of the inner wall of the launching cylinder, a blocking paper sheet is fixedly connected to the middle section of the inner wall of the effect inner cylinder, and a cavity is formed in the inner wall of the effect inner cylinder; the portion, located above the blocking paper piece, in the effect inner cylinder is sequentially filled with propellant powder, clay knots and acousto-optic powder from bottom to top. According to the utility model, the propellant powder is filled in the lengthened effect inner cylinder, so that the thrust transmission path is shortened, the energy loss caused by a gap between the launching cylinder and the effect inner cylinder is reduced, and under the condition of the same propellant powder amount, larger upward thrust can be generated, and the firework launching height can be increased.

This invention discloses an underwater salvage mechanical claw device for fire rescue, comprising an operating lever and an operating frame. A mechanical claw mechanism is connected to the bottom of the operating lever, and a clamping mechanism is connected to the mechanical claw mechanism. The mechanical claw mechanism includes a fixed base and multiple inclined claw plate mounting bases evenly fixed along its outer side. Two single claw plates are symmetrically rotatably connected to the outer end of each claw plate mounting base. A connecting shaft is fixed to the top of the two single claw plates and connected to the clamping mechanism. A cutting blade is provided between the two single claw plates. The top of the cutting blade is rotatably mounted in a rotating groove at the bottom of the claw plate mounting base via a cutting shaft. Both ends of the cutting shaft extend into the claw plate mounting base and are connected to a drive assembly. This device controls the rotation of the cutting blade through the drive assembly, actively cutting obstacles such as fishing nets and aquatic plants entangled on the mechanical claw to avoid jamming. Simultaneously, the inclined double claw plate structure improves the stability and reliability of the gripping action, making it suitable for complex underwater rescue environments.

The invention relates to the technical field of workpiece machining, in particular to a silicon carbide flat grinding and barreling all-in-one machine which comprises a lathe bed, a stand column on the lathe bed, a main shaft mechanism on the lathe bed for fixing a workpiece, a direction finder on the stand column for detecting the crystal orientation and an adjusting mechanism on the lathe bed for driving the main shaft mechanism to move. A feeding mechanism slides on the other side wall face of the stand column. A first sliding plate is slidably arranged on the side wall face, away from the orientation device, of the feeding mechanism, and a second sliding mechanism used for driving the first sliding plate to ascend and descend is arranged on the feeding mechanism. A barreling mechanism is fixedly arranged at one end of the first sliding plate, a flat grinding mechanism and a grooving mechanism are fixedly arranged on the portion, corresponding to one side of the barreling mechanism, of the first sliding plate, the grooving mechanism is arranged below the flat grinding mechanism, and grinding wheels of the barreling mechanism, the flat grinding mechanism and the grooving mechanism all face the main shaft mechanism. The device has the advantages that the occupied area is reduced, the maintenance cost is reduced, and the machining precision and the production efficiency are improved.

The utility model discloses a ship -borne crane for offshore operation, including support, hoisting assembly and fixture subassembly, hoisting assembly includes power input part, transmission mechanism and lifting appliance, power input part drives lifting appliance to go up and down movement through transmission mechanism, fixture subassembly is connected in lifting appliance, and fixture subassembly includes support frame, at least two opposite setting's clamping arm and drive mechanism, clamping arm is installed in support frame in open and close, and the inside working surface of clamping arm is arc or pincer shape, and the clamping groove is formed between two opposite setting's clamping arms, drive mechanism is used for driving two clamping arms open and close to snatch or loosen cylindrical heavy object, the utility model discloses through setting up the clamping arm with arc or pincer shape working surface, specially aiming at the appearance feature design of cylindrical heavy object, has provided greater contact area and better stress distribution, has improved snatch stability and security significantly. Overall simple and reliable structure, the low manufacturing cost, maintains conveniently.

The utility model relates to a paver, and relates to the technical field of engineering machinery, the paver comprises a machine body, a material distribution device, an ironing device and an auxiliary conveying device, the material distribution device is connected with the machine body; the ironing device comprises a main body part and a telescopic part, the main body part is connected with the machine body, the telescopic part is slidably connected with the main body part in the length direction of the main body part, and at least part of the telescopic part can extend out of the main body part; the auxiliary conveying device is connected with the machine body, at least part of the auxiliary conveying device is arranged between the end of the distributing device and the end of the telescopic part, and the auxiliary conveying device is used for dispersing materials between the end of the distributing device and the end of the telescopic part. According to the paver, the problem that the material stacking height between the end part of the material distributing device and the end part of the telescopic part is too high can be solved, and the ironing effect of the material between the end part of the material distributing device and the end part of the telescopic part is improved.

The invention provides a magnetron structure. The magnetron structure comprises a main body part which is provided with an accommodating cavity; the main body part is provided with a plurality of fan blade parts, and the multiple fan blade parts are arranged around the containing cavity at intervals; a resonant cavity is formed in a gap between every two adjacent fan blade parts; the resonant cavity is communicated with the accommodating cavity; the mounting groove is formed in the multiple fan blade parts and communicates with the resonant cavity, so that an annular groove is defined; the diaphragm belt is arranged in the mounting groove; wherein the mounting groove comprises a shallow groove section and a deep groove section, and the depth of the deep groove section is larger than that of the shallow groove section in the extending direction of the containing cavity; at least two shallow groove sections and at least two deep groove sections are arranged, and the shallow groove sections and the deep groove sections are alternately arranged at intervals. Through the technical scheme provided by the invention, the technical problem that the supporting stability of the structure for supporting the diaphragm belt in the magnetron in the prior art is relatively poor can be solved.

The application provides a water planting frame for an agricultural and photovoltaic integrated plant factory, which comprises a bearing frame used for mounting a water planting tank, a plurality of bearing frames are arranged along a plurality of columns of a photovoltaic support, one end of the bearing frame is connected with the column through at least two corner brackets, the other end of the bearing frame is provided with a support rod which is inclined to the direction of the column, and the water planting tank is fixed on the bearing frame. The corner brackets are in a "V" shape or a "U" shape when viewed from above, the opening of the corner bracket is used for accommodating the column, the two corner brackets are apart from each other in height, the two corner brackets are fixedly connected with a vertical rod, one end of a horizontal rod is fixedly connected with the vertical rod, and the other end of the horizontal rod is fixedly connected with the support rod; when each corner bracket is in contact with the column, the included angle between the support rod and a vertical plane is 3°-45°; a supporting leg is arranged at the bottom of the support rod and is pressed into the ground. Through the above structure, the construction efficiency is very high, and since the connection structure is less, the conventional screwing bolts and welding processes are not needed, and the construction efficiency is greatly improved.

The invention discloses a rock-soil mining detection device, and belongs to the technical field of rock-soil detection, the rock-soil mining detection device comprises a test bed, the lower surface of the test bed is fixedly connected with a support, the front and rear sides of the upper surface of the test bed are in bolted connection with vertical plates, and the outer wall of the vertical plate on the rear side is in bolted connection with a motor; the output end of the motor is fixedly connected with a connecting shaft; connecting plates are fixedly connected to the inner walls of the adjacent vertical plates, threaded rods are rotationally arranged in the connecting plates, and working plates are in threaded connection with the surfaces of the threaded rods. When the rock-soil mining detection device is used, a sample needing to be detected is placed on a partition plate, a motor is started at the moment, the motor drives a connecting shaft to rotate, a threaded rod rotates under the action of a first bevel gear and a second bevel gear, then a working plate drives an extrusion head to descend, and a worker records data of the motor and the extrusion head, so that the detection accuracy is improved. The detection process is rapid and convenient, and the working efficiency is high.

The application discloses a wheel-foot switching robot power switching module, a leg part and a robot, and the power switching module comprises a camshaft module and a central rotating shaft module; power is provided by a first power source to drive the camshaft module and the central rotating shaft module to cooperate to realize switching between a first working position and a second working position; when the first working position is reached, the camshaft module is in contact with the central rotating shaft module, power is provided by a second power source to enable a wheeled mechanism and a lower leg mechanism installed on the central rotating shaft module to obtain power; when the second working position is reached, the camshaft module is separated from the central rotating shaft module, power is provided by a second power source of the wheel-foot robot to enable the wheeled mechanism installed on the central rotating shaft module to obtain power and the lower leg mechanism to lose power. The thigh motor is used as the first power source to provide power, and then the camshaft module and the central rotating shaft module are combined in a skillful manner, so that power transmission under different working positions is realized.

The present application relates to a kind of nuclear reactor support mechanism, wherein nuclear reactor support mechanism includes several vertical support structures;Any vertical support structure includes lug, and lug type support is supported by lug;Lug includes base and at least one rib plate;One end of base is arranged in lug type support, and displacement can occur in lug type support along the length direction of base and / or the width direction of base;Nuclear reactor support mechanism further includes at least one first lateral support structure, and the first lateral support structure includes at least one first lateral support body, and the length direction of the first lateral support body is same with the radial direction of equipment, and one end of the first lateral support body can be connected on the circumferential side of equipment.The nuclear reactor support mechanism of the present application can be used on the equipment with high length-diameter ratio and vertical arrangement in the reactor, to ensure the release of cold and hot equipment self-expansion and pipe elongation, to ensure the verticality of equipment, and to facilitate the optimization of equipment stress, to improve the reliability of equipment.

The coal mine underground skeleton assisting equipment comprises a skeleton support, pneumatic muscles, strap supports, hip joint frames, joint connecting rods, leg guard supporting plates and thigh guard plates, the skeleton support is in a V shape, the pneumatic muscles are arranged on the two sides of the skeleton support respectively, the strap supports are hinged to the top of the skeleton support, and the hip joint frames are hinged to the top of the skeleton support. The strap support rotates along the central axis of the skeleton support, and shoulder straps are arranged at the two bottom ends of the strap support and the skeleton support respectively. The two bottom ends of the skeleton support are connected with hip joint frames respectively, each hip joint frame is hinged to a joint connecting rod, each joint connecting rod is connected with a leg guard supporting plate through a torsional spring mechanism, the two leg guard supporting plates are oppositely arranged, each leg guard supporting plate is hinged to a thigh guard plate, and the thigh guard plates are perpendicular to the leg guard supporting plates and rotate in the axial direction of the leg guard supporting plates. Each thigh protection plate is provided with a thigh bandage, and the thigh protection plates are fixed to the thighs through the thigh bandages. The underground explosion-proof device solves the underground explosion-proof problem, is simple and convenient to use and is not easy to break down.

The invention relates to the technical field of automobile tires, and particularly discloses a spare tire, which is used for solving the problem of insufficient safety of a spare tire in the prior art. Comprising two steel wire rings, the outer sides of the steel wire rings are wrapped with supporting apex, a sidewall is distributed on the outer side of the supporting apex, a polyester tire body layer is arranged between the supporting apex and the sidewall, a lining layer is arranged on the inner side of the supporting apex where the polyester tire body layer is located, two steel wire belt plies are arranged at the upper end of the lining layer, and tread layers are arranged on the outer sides of the steel wire belt plies. The tire further comprises a pattern structure arranged on the tread layer. By optimizing the tread pattern design, the control stability of the tire in the running process is improved, and the braking distance is reduced; by optimizing the contour and structural design of the tire, the tire stress in the driving process is improved, the tire wear is delayed, the effective driving time of the tire is prolonged, and the driving safety is ensured.

The utility model discloses a torsion nut with a pushing structure, which comprises a nut body, a split pushing component and a first pressure-bearing gasket, a first internal thread is arranged in the nut body, a plurality of first mounting holes are arranged on the outer wall of the nut body, the axial direction of the first mounting holes is consistent with that of the nut body, and the split pushing component is arranged in the nut body. The split pushing part is mounted in the first mounting hole, and the bottom of the split pushing part extends out of the first mounting hole to abut against the first pressure-bearing gasket; the split pushing part comprises a torsion bolt and a pressure-bearing column, the pressure-bearing column is arranged in the first mounting hole, the torsion bolt is meshed with threads in the first mounting hole, and the torsion bolt extrudes the pressure-bearing column towards the first pressure-bearing gasket; the torsion nut with the pushing structure and the bolt are simple in structure, reliable in connection, excellent in looseness prevention and capable of preventing the torsion bolt from being damaged.

The utility model provides a battery assembly structure which comprises a battery module formed by mutually overlapping a plurality of single batteries along a first direction, and a first forming module, a first supporting module and a second forming module which are sequentially connected to an electrical connecting end in an abutting manner, the first forming module is fixedly connected with the battery module and the head of the battery module through the fixed connecting sleeve, the first forming module and the second forming module are oppositely connected with the battery module in a matched mode in the first direction, and the first supporting module abuts against the portion between the end face of the first forming module and the end face of the second forming module. According to the battery assembly structure, the structural connection of the electrical connection end of the head part of the battery assembly structure is well shaped, supported and protected, and the battery assembly structure has relatively high electrical connection stability; and meanwhile, the overall appearance shape of the battery module can be effectively improved, and integrated connection molding between the head of the battery module and the overall battery module is realized.

The invention discloses a balance beam damping system with a pressure monitoring function, a chassis and a vehicle. The balance beam damping system comprises a balance beam, a rubber damping device, a pressure monitoring device and a second fastening part. The rubber damping device is arranged below the end part of one side of the balance beam; the pressure monitoring device is arranged between the rubber damping device and the balance beam, and the pressure monitoring device and the rubber damping device are detachably fixed together through a first fastening part; the second fastening part is used for fixing the balance beam, the pressure monitoring device and the rubber damping device together in a detachable mode. The problems that a rubber damping built-in monitoring device is low in measuring range and has no maintainability are solved, the stress of the monitoring device is optimized, and the disassembly and assembly convenience of a damping system is improved.