11100 results about "Torsion spring" patented technology

The cold drink storage tank comprises a tank body provided with a discharging port and a material port switching device, the tank body is provided with a switch base, the switch base is provided with a detachable material guiding head, and the material guiding head is provided with a discharging channel; wherein the material opening switch device comprises a driving seat provided with a handle, a plug and a linkage traction rod, one end of the driving seat is hinged to the switch base, and the other end of the driving seat is hinged to one end of the linkage traction rod; one end of the plug is provided with a base rotating shaft rotationally connected with the switch base and a plug linkage rod used for being hinged to the linkage traction rod, one end of the linkage traction rod is hinged to the driving base, and the other end of the linkage traction rod is hinged to the plug linkage rod; the base rotating shaft is provided with a torsion spring used for resetting, and the two ends of the torsion spring abut against the plug and the linkage traction rod respectively. By the adoption of the device, discharging control is convenient and fast, and cleaning is easy.

Provided is a self-adaptive identification method for nonlinear dynamic parameters of a reducer, which belongs to the design field of a reducer. The method includes: modeling a harmonic reducer corresponding to a flexible joint as a concatemer of a rigid reducer and an elastic torsion spring, and carrying out dynamic theoretical modeling and parameter variable independence processing on the concatemer to form a dynamic equation for parameter identification; giving an optimized motion trajectory to each joint of a robot and controlling the robot to act accordingly, acquiring relevant data needed for parameter identification based on a built-in torque sensor and double encoders inside the joint; using an offline identification algorithm to accurately identify a plurality of dynamic parameters of a collaborative robot considering joint flexibility and friction, and obtaining a minimum parameter set.

The invention relates to the technical field of circuit breakers, in particular to a magnetic control pole-mounted circuit breaker integrating primary equipment and secondary equipment, which comprises a pole-mounted circuit breaker box body, a magnetic control mechanism is arranged in the pole-mounted circuit breaker box body, and the magnetic control mechanism comprises an insulating transmission rod connected with the lower end of a moving contact. When opening operation is needed, the servo motor drives the permanent magnet plate to rotate and extrudes the extrusion block through the convex surface of the permanent magnet plate, so that the extrusion block drives the transmission frame to unfold towards the two sides and drives the insulation transmission rod to descend, the insulation transmission rod drives the moving contact to be separated from the static contact, and therefore opening is achieved. The permanent magnet plate moves at the slope of the slope plate through the extrusion rod, the permanent magnet plate drives the reset torsion spring to rotate and store energy through the fixing ring, and the magnetic field between the permanent magnet column and the permanent magnet plate changes, so that the permanent magnet column generates magnetic attraction to the permanent magnet plate, and the response speed of subsequent rapid reset and rapid switching-on is increased.

The present invention discloses a dual-shutter telescopic door railing and, in the technical solution of the invention, two reels are pivotally provided between the upper fixed seat and the lower fixed seat to connect with the rolling shutter component, a torsion spring that can automatically retract the rolling shutter component is disposed inside the reel and, after assembly, the invention forms a dual-shutter structure having two rolling shutter components, improving the range of application and the applicability of telescopic door railings.

A stabilizer bar assembly may include left and right bars, an outer cylinder member connected to one of the left bar and the right bar, an inner cylinder member provided inside the outer cylinder member to enable relative rotation with the outer cylinder member, and connected to the other one of the left bar and the right bar, and a torsion spring providing rotational stiffness to the inner cylinder member and the outer cylinder, which rotate relatively.

A display device includes a display module, a roller connected to a first end of the display module, and a first arm and a second arm disposed on a rear surface of the display module, spaced apart from each other, and connected to a second end of the display module. Each of the first arm and the second arm includes joint units coupled to each other and rotatable relative to each other, and a torsion spring disposed in a portion of adjacent ones of the joint units.

Disclosed in the present invention is a ceramic green body machining device, comprising a sedimentation tank, a supporting platform, a height-adjustment platform and a cleaning platform. According to the present invention, during use, when a counterweight plate is close to a distal end of a sweeping frame and a liquid dispensing chamber is fully loaded, the weight of a press block area exceeds the torsion of a torsion spring, and the liquid dispensing chamber and the press block would fall down from an accommodation groove until the liquid dispensing chamber and the press block are perpendicular to the accommodation groove; in this case, a cleaning liquid is sprayed from one side of the liquid dispensing chamber by means of a second spray head, thereby effectively rinsing an area to which a first spray head cannot spray; a polishing sand layer on an arc-shaped plate would be attached to a rough area on the surface of a ceramic green body and rotates along with the rotation of a mounting arm to rotationally grind the rough area, thereby improving ceramic green body manufacturing effects; and when a cooling liquid flows down from a contact area between the polishing sand layer and the surface of the ceramic green body, the cooling liquid cools the surface of the ceramic green body. The present invention is conducive to the discharging of dust generated in the grinding process and avoids cracking caused by excessive local drying of the surface of the ceramic green body.

A truck cover system comprises a side rail configured to be coupled to a side wall of a bed of a truck; a cover removably attached to the side rail and configured to cover the bed of the truck; a latching mechanism attached to the cover and configured to releasably engage the side rail; and a driving assembly configured to drive the latching mechanism. The driving assembly comprises a mount plate coupled with the side rail through a latch attachment; a driving cylinder rotatably coupled with the mount plate; a driving ring releasably coupled with the driving cylinder and configured to rotate together with the driving cylinder; a torsion spring interposed between the driving ring and the mount plate and configured to be driven by the driving ring; and a handle coupled with the driving cylinder and configured to rotate together with the driving cylinder and the driving ring.

The invention discloses a torsion spring automatic injector, comprising a pen body, the pen body is equipped with a dose setting component and an injection component; the injection component comprises a release button, a clutch cylinder, a small push rod, a torsion spring and a push rod driving member, the dose setting component comprises a knob, a clutch tooth and a jumping tooth, the upper end surface of the clutch tooth is provided with an inner ratchet ring, the knob is provided with an outer ratchet ring, the jumping tooth is movably installed in the knob, the lower end surface of the jumping tooth is provided with an inner tooth block and an outer tooth block respectively meshing with the inner ratchet ring and the outer ratchet ring, the knob is also provided with a plurality of rotating slots, the side of the jumping tooth is provided with a plurality of rotating blocks respectively inserted into the rotating slots, and the two ends of each rotating slot are respectively provided with a forward rotation rib block and a reverse rotation rib block for blocking the rotating block. The scheme has a simple structure, is easy to operate, is convenient to carry, and adopts axial jumping to adjust the dose and make sounds.

The invention belongs to the technical field of fluid control, and relates to a rotary flow distribution adjusting device and method for aviation. Comprising an inlet shell, an annular impeller, a torsion spring, a valve element, a magnetic damper and an outlet shell. The flow distribution adjusting device is arranged at the pipeline branch position of a liquid pipe network branch system, fluid flows through the annular impeller, the annular impeller generates torsional force to drive the valve element to rotate to change the overflowing sections of the two outlets, continuous adjustment of the flow distribution proportion of different branches is achieved, and the larger the fluid flow speed is, the larger the stress of the annular impeller is. And the valve core is driven to select a larger angle to correspond to different outlet flow distribution conditions. According to the flow distribution adjusting device, the complexity of an adjusting system can be reduced, the flow resistance caused by flow distribution adjustment is reduced, and then the energy consumption of a power source in a liquid system is reduced.

The invention provides a welding device for ship repair, and belongs to the technical field of welding. Comprising a base, a supporting plate is fixedly arranged on the surface of the base, a sliding plate is arranged on the inner wall of the supporting plate in a sliding mode, a welding gun for welding the ship welding position is installed on the surface of the sliding plate, and a cleaning part for cleaning welding slag generated during welding of the welding gun is installed on the surface of the sliding plate; by arranging the cleaning part, welding can be carried out while the whole equipment is moved, welding slag generated by welding at the welding position can be adsorbed during welding, splashing of the welding slag is prevented, a pipeline can be knocked through cooperative work of a motor, a rotating rod, a round wheel, a connecting rod, a sliding block, a downward pressing rod, a torsion spring, a rotating strip, a spring hammer and other components, and therefore the pipeline can be conveniently welded. Welding slag in the pipeline is knocked off due to vibration and sucked away by the fan, cleaning of the welding slag adsorbed to the inner wall of the pipeline is achieved, smoothness of the pipeline is guaranteed, and attachment of the welding slag to the inner wall of the pipeline is effectively reduced.

The invention provides a semi-folding wing automatic unfolding and locking device and an unmanned aerial vehicle. The locking device comprises a fuselage wing and a locking device, the folding wings are hinged to the fuselage wings; the hinge mechanism comprises a hinge shaft and a hinge torsion spring, the folding wings are hinged to the fuselage wings through the hinge shaft, the hinge torsion spring is arranged on the hinge shaft in a sleeving mode, the hinge torsion spring is connected with the folding wings and the fuselage wings, and when the folding wings are folded relative to the fuselage wings, the hinge torsion spring is in a deformation state; the first locking mechanism is arranged on the fuselage wings; the first locking mechanism is arranged on the folding wing, the second locking mechanism is arranged on the folding wing, the first locking mechanism is movably connected with the second locking mechanism, and when the folding wing is unfolded relative to the fuselage wing, the first locking mechanism and the second locking mechanism are in a locking state. Due to the fact that the fuselage wings are hinged to the folding wings through the hinge mechanisms, the semi-folding wings can be placed in a launching box with small width and regular appearance to be stored and launched in the folded state, and storage and transportation of the semi-folding wings are facilitated.

The vibration isolation device comprises a top plate and a bottom plate, a first upper connecting rod and a second upper connecting rod are hinged to the lower side of the top plate through first cylindrical pins, and a first lower connecting rod and a second lower connecting rod are hinged to the upper side of the bottom plate through second cylindrical pins. The first lower connecting rod is hinged to the first upper connecting rod through a third cylindrical pin, the second lower connecting rod is hinged to the second upper connecting rod through a third cylindrical pin, the nonlinear vibration isolation effect of high static rigidity and low dynamic rigidity can be achieved, positive rigidity is provided by the torsion spring, negative rigidity is provided by the spiral spring, and vibration isolation is achieved. The spiral spring obtains pre-tightening force by rotating the force adjusting piece, and vertical adjustment in the platform period is achieved.

A positioning mechanism of an umbrella comprises a stand; a sliding seat capable of sliding along a length of the stand and; a synchronous toothed belt connected to the stand. The stand has a groove on a periphery of the stand extending along the length of the stand, the synchronous toothed belt is disposed inside the groove; the sliding seat has a toothed block or pin capable of engaging with the synchronous toothed belt, a button is disposed on the sliding seat, a torsion spring is resisted to drive the button to push the toothed block or pin to engage with the synchronous toothed belt. The stand of the present invention can be machined in various way and can be in various shapes, and is novel in appearance, easy to machine, firm and stable in positioning, and low in cost.

The invention relates to the technical field of sewage treatment, in particular to automatic quantity control dosing equipment for sewage treatment, which comprises a mixing tank, a stirring shaft, a rotating disc and a blanking tank, the discharging tank is divided into an arc-shaped partition bin and an arc-shaped stock bin, and a torsional spring shaft is arranged in the arc-shaped partition bin. An arc-shaped material pipe is arranged in the discharging tank, the arc-shaped material pipe comprises a vibrating part, a discharging part and a feeding part, a pressing ring is arranged on the discharging part, an opening is formed in the arc-shaped material pipe, a gate is arranged on the opening, and a discharging opening is formed in the bottom face of the arc-shaped partition bin; a torsion plate is arranged on the torsion spring shaft, a sliding hole is formed in the torsion plate, a deflector rod is arranged at the lower end of the torsion spring shaft, and a hopper and a push block are arranged on the rotating disc. Through rotation of the rotating disc, the torsion spring shaft drives the torsion plate to intermittently rotate for discharging, compared with the mode of discharging depending on gravity, the single-time discharging amount of the arc-shaped material pipe is more stable, and the situation that drugs are blocked due to gravity accumulation is avoided.

The present invention discloses an intelligent charging pile, which relates to the technical field of charging piles, including a charging pile body, a placement seat, a charging gun, and a charging cable. A storage cavity is provided on the front side of the charging pile body, and a front baffle is fixedly connected to the inner wall of the storage cavity, and a storage adjustment mechanism is provided on the inner wall of the storage cavity. This intelligent charging pile can gradually pull out the charging cable wound on the winding drum for use after taking the charging gun when using the charging pile, so as to avoid the charging cable from rubbing on an uneven or rough ground, which is beneficial to reduce the use wear of the charging cable. At the same time, after putting the charging gun back, the pulled-out charging cable can be automatically recovered by using a torsion spring, and the support rod and the winding drum are used to cooperate so that the winding drum can move left and right during the rotation process, which is not only more uniform when winding, but also avoids excessive distortion of the charging cable when pulling it out, thereby ensuring the service life of the charging pile.

The utility model discloses a small leakage protection circuit breaker, an operating mechanism thereof and a double-breakpoint test loop. The operating mechanism comprises a handle and a reset torsion spring, the operating mechanism has a switching-on state and a switching-off state, and the reset torsion spring is used for providing reset force for the handle; wherein the reset torsion spring is made of a conductive material; the double-breakpoint test loop comprises a first breakpoint, a second breakpoint and a test button; when the operating mechanism is in a closed state, the first breakpoint is in an on state under the pressing of the operating mechanism; when the operating mechanism is in an opening state, the first breakpoint is in a breaking state; the second breakpoint comprises a second static contact and a second moving contact, the second moving contact and the reset torsion spring are integrally formed, the second moving contact is located below the test button, and when the test button is pressed by external force, the second moving contact and the second static contact are in a connected state; when the first breakpoint and the second breakpoint are both in the on state, the double-breakpoint test loop is conducted; the device has the advantage of being more compact in structure.

The invention discloses a torsion spring automatic injector dose adjustment positive and negative rotation sound production structure, which comprises a knob, a clutch tooth and a jumping tooth, the knob is sleeved on the periphery of the clutch tooth, the upper end face of the clutch tooth is provided with an inner ratchet ring, the knob is internally provided with an inner ring, the upper end face of the inner ring is provided with an outer ratchet ring, and the outer ratchet ring is provided with an outer ratchet ring. The jumping teeth are movably installed in the knob, the jumping teeth are provided with connecting keys or connecting ratchets, the lower end face of each jumping tooth is provided with an inner tooth block and an outer tooth block which are meshed with the inner ratchet ring and the outer ratchet ring respectively, and a plurality of rotating clamping grooves are further formed in the knob. A plurality of rotary clamping blocks clamped into the rotary clamping grooves respectively are arranged on the side edges of the jumping teeth, and the rotary clamping blocks can rotate by a certain angle in the rotary clamping grooves. According to the design, an axial tooth jumping sounding structure is adopted, when the dosage is adjusted, the adjusting knob is rotated clockwise to the desired dosage, the adjusting knob is rotated anticlockwise to return to the zero position, and jumping sounding can be achieved through meshing of spring force in the forward and reverse rotation process.

The disclosure relates to an assembly (1) for providing a fastening possibility for a vehicle component to a body component (11). The assembly (1) includes a connecting element (2) and a retaining element (3). The retaining element (3) includes a base body having a retaining region (4), and the connecting element (2) includes a base body having a receiving region (5), in which at least the retaining region (4) of the retaining element (3) is received in a rotatable manner relative to the receiving region (5) about an axis of rotation. The assembly (1) can be transferred from a pre-assembly or deliverable state into an assembled state. In the pre-assembly or deliverable state of the assembly (1), the retaining element (3) lies in a first rotational position relative to the receiving region (5) of the connecting element (2) counter to a torsion torque serving as a biasing force and exerted by a biased torsion spring (6) on the retaining element (3), wherein, in the assembled state of the assembly (1), the retaining element (3) lies in a second rotational position that is different from the first rotational position. Due to an external pulse or trigger exerted on the retaining element (3), the assembly (1) can be transferred from its pre-assembly or deliverable state into its assembled state. When the assembly (1) is transferred from its pre-assembly or deliverable state into its assembled state, the retaining element (3) is at least partially transferred into the second rotational position due to the force of the torsion spring (6).

The invention discloses a folding wing and rudder design method and an unfolding locking mechanism thereof. The locking mechanism comprises a connecting handle, an elastic torsional spring and a rotating shaft. A locking head and a connector are arranged on the two sides of the bottom of the folding wing or the folding rudder respectively; the design method comprises the steps of obtaining performance parameters, and determining specific indexes such as folding sizes and unfolding time of the folding wing and the rudder. And designing a structural model according to principles of generalization, reliability and the like, and determining geometric parameters of the wing and the rudder. Verifying the strength of parts of the locking mechanism, calculating a plurality of parameters of an elastic torsion spring, and analyzing the unfolding time and synchronism. Finally, consistency checking is conducted based on finite element simulation analysis, torque and bending moment are applied in ABAQUS software according to parameters, the structural strength of the folded rudder is analyzed, and it is ensured that the design meets the requirement. According to the folding wing and rudder design method, through the scientific design process and multi-principle comprehensive application, the high-performance requirement is met, meanwhile, the cost is effectively reduced, the reliability and maintainability of products are improved, and the remarkable beneficial effects are achieved.

The invention discloses a charging protection structure of a new energy vehicle, and relates to the related technical field of charging protection structures.The charging protection structure comprises a charging gun arranged on one side of a pile body, the charging gun is provided with a charging gun protection mechanism, a circle of protection ring is arranged on the outer circle of the charging gun, and several protection claws are rotationally arranged on the protection ring; when the charging gun is not pulled out and the electric car is started and pulls the charging gun, the rope below the charging gun can be pulled out to drive the elastic belt to press the elastic piece downwards, so that the button on the charging gun is pressed down to loosen the buckle, the protective clamping jaw pops out of the charging gun under the action of the torsion spring, and the charging gun is wrapped by the air bag in the air, so that the charging gun is protected. The charging gun can stably fall to the ground, the charging gun is prevented from making contact with the ground and being damaged, the dragging and dragging risks caused by the fact that a user does not pull out the charging gun are avoided, meanwhile, a charging gun shell and a charging gun opening are safely protected, damage is avoided, and next use is facilitated.

The utility model is suitable for the technical field of garbage classification, and provides a garbage classification throwing station which is provided with a box body, a frame, an overturning plate, a limiting plate and a lifting mechanism, in the garbage throwing process, the overturning plate can be driven by the gravity of garbage to overturn downwards, and after the garbage falls into a garbage can, the overturning plate is reset under the action of a reset torsion spring, so that the garbage can be automatically thrown into the garbage can. The reset overturning plate can block the throwing opening of the dustbin body, the phenomenon that garbage smell is diffused all around is effectively avoided, in addition, in the process that the lifting mechanism drives the frame to move from top to bottom, the limiting plate limits the overturning plate, the overturning plate can extrude and compress garbage in the dustbin, and therefore the space of the garbage is reduced, and the garbage utilization rate is improved. And the replacement frequency of the dustbin is reduced.

An auto-injector comprising an elongate housing containing a syringe. The housing having an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring pushing the needle from a covered position into an advanced position, operating the syringe and covering the needle. An activator arranged to lock the spring prior to manual operation and capable of, upon manual operation, releasing the spring means for injection. A first gear arrangement and a second gear arrangement arranged fro converting torque from a first end and a second end of the torsion spring into a translative force. The first end groundable in the housing while the second end acts on a plunger through the second gear arrangement for advancing the needle and supplying the dose.

An automatic emergency door closure is provided that can be used with an existing door by inserting a hinge pin assembly into knuckles of hinge plates associated with the existing door. The hinge pin assembly is movable between a first position where the door is held in a regular use position in which it can be opened and closed and a second position where the door is released to a closed position. This movement from the first position to the second position may be as a result of a variety of triggers, including a message transmitted from a remote location or nearby heat. The assembly may include a hinge pin body that is inserted into the knuckles, a torsion spring that is configured to rotate the hinge pin body, and an activator that can be activated by the trigger to enable rotation of the hinge pin body.

The clutch injection structure comprises a shell, a release button, a clutch cylinder, a small push rod, a large push rod, a torsion spring and a push rod driving piece, the push rod driving piece is installed in the shell, a first driving ratchet wheel is arranged on the push rod driving piece, the lower end of the large push rod is connected with the push rod driving piece, and a second driving ratchet wheel is arranged at the lower end of the large push rod. A first driving ratchet is arranged at the lower end of the large push rod, the push rod driving piece is in threaded connection with the small push rod, a second driving ratchet is arranged on the large push rod, a second driving ratchet is arranged at the lower end of the clutch cylinder, a gap is formed between the lower end of the clutch cylinder and the large push rod, and the torsion spring is connected with the shell and the clutch cylinder. The release button is connected with the clutch cylinder and can drive the lower end of the clutch cylinder to be connected with the large push rod. The design is simple in structure, convenient to produce and assemble and low in cost.

A spiral excitation assembly of a prefilled automatic injection pen and a prefilled automatic injection pen comprising the spiral excitation assembly. The spiral excitation assembly of the prefilled automatic injection pen comprises: a cavity (6) for changing a rotary motion of a threaded push rod (5) into an axial forward movement; a nut (9), which is capable of being rotatably mounted in the cavity (6) relative to the cavity (6), with a torsion spring (7) capable of driving the nut (9) to rotate being arranged between the nut (9) and the cavity (6); the threaded push rod (5), which is in threaded connection with the interior of the nut (9) and driven by the rotation of the nut (9) to move forward and then drive a prefilled syringe (4) to move to complete automatic needle insertion; a clutch member (10), which is sleeved outside the nut (9) and capable of being driven by an excitation sleeve (3) of the prefilled automatic injection pen to move from an engaged position to an excitation position, wherein the clutch member engages with the nut (9) to stop the nut (9) when in the engaged position, and the nut (9) can rotate when the clutch member is in the excitation position; and a clutch spring (8), which is mounted between the clutch member (10) and an end cover (11) and is used for driving the clutch member (10) from the excitation position into a limiting position to limit backward movement of the excitation sleeve (3) to achieve needle protection post-injection, and to cause the clutch member (10) to collide with the nut (9) to produce a sound.

An astronaut seat back locking mechanism comprises a supporting module and a locking module, and the supporting module is composed of a supporting assembly and a locking assembly; the locking module is composed of a spring bolt assembly, an unlocking handle assembly and a pull-back handle assembly. The supporting assembly comprises a supporting plate; the locking assembly comprises a supporting module spring bolt, a spring bolt spring and the like. The spring bolt assembly comprises a locking module spring bolt, a jackscrew, a mounting seat and the like; the unlocking handle assembly comprises a lock cover, an unlocking handle, an unlocking handle torsion spring and the like; the pull-back handle assembly comprises a limiting rod, a pull-back handle, a lock shell and the like. The supporting plate does not occupy the movement space of the seat and can be fixed on the side surface of the seat back when retracted; during working, the stress of the angle adjuster can be well balanced, and the chair operation is not influenced; the locking module is compact in structure and convenient to operate. Unlocking and withdrawing of the left and right lock tongues can be synchronously controlled through the connecting rod, and operation is easy. The device is suitable for assisting an angle adjuster to lock and protect the angle of the chair back under the condition that mechanical conditions of an aerospace chair are complex.

The invention discloses a rotary spraying pump with a rotor cavity air rapid emptying function, and belongs to the technical field of rotary spraying pumps. Liquid in a tank body is reduced, so that a sealing plug moves downwards along with the liquid level, torsion of a torsion spring drives a brush and a spraying pipe to rotate through a water conveying cavity, the cleaning area of the brush on a filter screen is increased, and the cleaning efficiency is improved. When the convex surface of the cam is far away from the roller, the piston is reset upwards, so that the cam is matched with the second spring, the piston moves up and down for reciprocating drainage, and liquid is discharged through a two-way one-way pipe; secondly, a sealing plug is downward and can drive a sliding rail and a ball to move through a rope, the ball drives a rotating roller to rotate through an arc-shaped groove, a gear and a tooth valve are in transmission, a water inlet pipe can be opened, and therefore the water inlet pipe can be connected with a water source; and the automatic water feeding operation can be conveniently realized.

The invention relates to an electric energy metering box, and relates to the technical field of electric energy metering boxes, the electric energy metering box comprises a cabinet body, a plugging assembly, a driving assembly and a synergistic assembly, one side of the cabinet body is in an opening shape, the opening end is hinged to a cabinet door, and the cabinet door is provided with a ventilation hole; the plugging assembly comprises a plugging block and a torsional spring, the plugging block is rotationally connected to the cabinet door through a rotating shaft and located on one side of the ventilation hole, and the plugging block is matched with the ventilation hole; two ends of the torsional spring are fixedly connected with the plugging block and the cabinet door respectively, and the torsional spring is in a free state in an initial state; the two ends of the driving assembly are connected with the plugging block and the cabinet door correspondingly and used for driving the plugging block to plug the ventilation hole. The synergistic assembly is arranged in the cabinet body and is used for further absorbing moisture in the cabinet body. The electric energy metering box has the effect of improving the safety of the electric energy metering box.

The invention provides a method and device for maintaining hand power of a driver, a vehicle and a storage medium. According to the method, by means of an electromagnetic relay on a first steering column, a torsion spring wound on a second steering column and a metal disc on the torsion spring which are included in the steer-by-wire system, when a steering column motor breaks down, it is ensured that an electromagnet in the electromagnetic relay is attracted to the metal disc by enabling the electromagnetic relay to be in a power-on state. Thus, when a driver rotates the steering wheel, the first steering column and the electromagnetic relay can rotate along with rotation of the steering wheel, then the attracted metal disc is driven to rotate, and the torsion spring is further driven to rotate. The torsion spring generates rotating force so that hand force feedback can be provided for a driver to simulate the hand feeling. Therefore, according to the method, the hand feeling of the driver can be simulated after the steering column motor breaks down, and the driver is assisted to safely drive the vehicle.