1477 results about "Spoiler" patented technology

The invention belongs to the technical field of engine nacelle part production, and particularly relates to an intelligent welding system and method for an engine nacelle combined type air inlet fairing. An inner spoiler moving groove and an outer spoiler moving groove are machined in the air inlet duct casting blank borne by the air inlet duct positioning assembly through the inner cutting assembly and the outer cutting assembly correspondingly, and the air inlet duct casting blank is formed into an air inlet duct component; a first clamping feeding assembly, a second clamping feeding assembly, a third clamping feeding assembly and a fourth clamping feeding assembly are used for feeding an inner reinforcing part, a heating part, a noise reduction and sound absorption part preassembled with a spoiler assembly and an annular cover plate into a cavity of the air inlet channel component, and the fed parts are welded and fixed into the cavity of the air inlet channel component through a welding assembly; in this way, intelligent welding and assembling operation of the combined air inlet fairing can be achieved, and the combined air inlet fairing has the advantages of being high in structural strength, good in noise reduction and sound absorption effect and capable of achieving automatic deicing of the lip and air inlet distortion control.

The utility model provides an energy storage high-voltage box and an energy storage system. The energy storage high-voltage box comprises a box body, a heating component set, a heat dissipation assembly and a spoiler, an installation cavity is formed in the box body, the heating component set is arranged in the installation cavity, the heat dissipation assembly is embedded in the wall face of the box body, the heat dissipation assembly comprises a heat absorption part and a heat dissipation part which are connected with each other, the heat absorption part is located in the installation cavity, and the heat dissipation part is located outside the installation cavity. The spoiler is arranged in the mounting cavity and used for driving gas in the mounting cavity to flow. According to the energy storage high-voltage box, the temperature of the box body is reduced, the temperature uniformity in the mounting cavity can be improved, and the temperature of a local position is prevented from being too high.

The invention relates to an offshore wind power pile foundation anti-scouring structure, and belongs to the technical field of offshore wind power construction, and the offshore wind power pile foundation anti-scouring structure comprises a pile foundation main body, a plurality of spoilers, a protective cylinder, a sand seepage cover and filling stones; the pile foundation main body is columnar, and the pile foundation main body is configured to be inserted into a seabed of a preset area; the pile foundation body is sleeved with the protection barrel, one end of the protection barrel is located on a seabed, the other end of the protection barrel is covered with the sand seepage cover, and a plurality of through holes are formed in the barrel wall of the protection barrel. The multiple spoilers are arranged outside the protective cylinder in the circumferential direction of the protective cylinder and connected with the protective cylinder, each spoiler comprises a spoiler vertical plate and a spoiler side plate, the spoiler vertical plate is parallel to the axis direction of the pile foundation body, and an acute included angle is formed between the spoiler side plate and the spoiler vertical plate; the space between the protective cylinder and the pile foundation body is filled with the filling stone, and the beneficial effect of prolonging the service life of the offshore wind power pile foundation is achieved.

A vehicle comprising having a vehicle body including a lower side, a rear quarter window and a rear spoiler garnish, the vehicle defining an inner passenger compartment; a D-pillar garnish configured to be mounted on the vehicle body between the rear spoiler garnish and the lower side of the vehicle, the D-pillar garnish including an outer garnish body having a first predetermined curvature portion; and an inner garnish body. The rear spoiler garnish includes an outer rear spoiler garnish and an inner rear spoiler garnish, the inner rear spoiler garnish having a second predetermined curvature portion. A gap is defined between a rear edge of the outer garnish body and a lower edge of the rear spoiler garnish, and the first predetermined curvature portion and the second predetermined curvature portion defining a convoluted flow path through the gap.

The present invention discloses a dynamic composite distortion simulator and a working method thereof in the technical field of aero-engine air inlet and engine matching. The simulator comprises a process air inlet, a spoiler column, a rotary valve and a high-speed motor. The spoiler column is installed inside the process air inlet, and the rotary valve is installed in the cavity of the spoiler column. One end of the rotary valve extending out of the spoiler column is connected to the high-speed motor. Dynamic distortion vortices are formed by utilizing the flow around the column and the rotary valve, and parameters such as the intensity and scale frequency of the vortex change with changes in the motor speed and the angle of attack and height of the spoiler column. This can effectively simulate the dynamic distortion flow field structure generated in the air inlet due to various reasons, overcome the shortcomings of existing simulators in simulating dynamic distortion, form a flow structure similar to the distortion flow field at the outlet of the real air inlet, so as to more realistically simulate the air inlet matching process, significantly improve the experimental efficiency and accuracy, and do not require an external air source.

The invention relates to the technical field of fluid mechanics experiments and wind environment simulation, in particular to an integrated turbulent flow guiding wind speed distribution control wind wall and a control method.The wind wall comprises a mounting frame and a two-dimensional cross turbulent flow module, the mounting frame is of a rectangular frame structure, and the two-dimensional cross turbulent flow module is arranged on the mounting frame; the two-dimensional cross turbulent flow module comprises a plurality of turbulent flow shafts which are arranged vertically and horizontally, a plurality of turbulent flow blades are arranged on the turbulent flow shafts which are arranged vertically and horizontally, and air gaps used for air outlet are formed between the vertically-arranged turbulent flow blades and the horizontally-arranged turbulent flow blades. A fan is arranged right behind the position where each longitudinally-arranged turbulent flow shaft intersects with each transversely-arranged turbulent flow shaft. The control method is applied to the wind wall, and a wind speed gradient and turbulence gradient superposed complex wind field model is constructed by regulating and controlling the rotating speed of the fan and the rotating speed of the turbulence shaft and regulating the wind speed and turbulence in a partitioned and differentiated manner.

The invention discloses a micro-channel cooling turbine blade inner cavity anti-deposition bionic structure design method and system, and relates to the field of turbine blade cooling of aero-engines. The problems of optimizing the wall cooling effect, flow resistance and calculation efficiency of the micro-channel structure are solved. The method comprises the steps that parameterization design is conducted on a bionic turbulent flow structure, and characteristic geometric parameters are obtained; establishing a micro-channel three-dimensional model of the bionic fish scale structure; screening the characteristic geometric parameters as design variables, and designing upper and lower intervals of the variables; taking heat exchange, pressure drop and particle deposition of the micro-channel as optimization targets, adjusting a design variable interval, and constructing a test sample space; performing numerical calculation by using the channel model to obtain a multi-objective optimization parameter value; establishing an agent model between the optimization parameter values and the geometric characteristic parameters; and optimizing by utilizing an agent model and a multi-objective optimization algorithm to obtain the optimal geometric parameters of the bionic fish scale turbulent flow structure, so that the efficient design of the micro-channel structure and the efficient utilization of the cold air consumption are realized.

A center camera mirror system spoiler mounting for a vehicle that can include a spoiler inner panel, a spoiler outer panel and a camera assembly. The spoiler inner panel can be configured to be mounted onto an exterior panel of the vehicle and the spoiler outer panel can be connected to the spoiler inner panel. The spoiler outer panel can include an outer surface that is an exterior surface of the vehicle, a camera opening passing through the spoiler outer panel, and a first datum. The camera assembly can be fixed to the spoiler inner panel in a predetermined orientation with respect to the spoiler inner panel, and can include a lens, and a second datum engaging the first datum. The lens can be in a predetermined alignment with respect to the camera opening when the second datum engages the first datum.

The present application relates to the field of energy storage converters and provides an energy storage converter and energy storage system, wherein the energy storage converter includes: an upper shell and a bottom shell forming a chamber; an inductor and an IGBT module are located in the chamber; a liquid cooling assembly includes: a cooling pipe, a temperature regulating structure, an element cooling channel and a spoiler; the temperature regulating structure includes a plurality of cooling parts, which are connected in series and parallel through cooling pipes; a cooling cavity is provided in the cooling part; the IGBT module corresponds to the cooling part; the element cooling channel and the temperature regulating structure are connected in series through the cooling pipe; the inductor corresponds to the element cooling channel; the spoiler includes a plurality of ring bodies connected to each other, and the spoiler is arranged in the cooling cavity; wherein, in the direction of liquid flow, the total length of the spoiler in the latter cooling part is greater than or equal to the total length of the spoiler in the former cooling part. The energy storage converter provided by the embodiment of the present application can at least solve the problem that the cooling performance of the liquid cooling assembly in the energy storage converter does not match the high thermal management requirements.

The utility model discloses a spoiler with a high disturbance rate. The spoiler comprises a spoiler body and a blocking part, a plurality of circulation parts penetrating through the spoiler body are arranged in the length direction of the spoiler body, each circulation part comprises two circulation assemblies which are symmetrically arranged, and each circulation assembly comprises a first circulation groove and a second circulation groove; and the multiple blocking parts are sequentially arranged on the two sides of the multiple circulation assemblies in a left-right crossed mode, each blocking part comprises a left blocking piece and a right blocking piece, the left blocking pieces extend outwards along the side walls, inclined to the left lower portion, in the first circulation grooves, and the right blocking pieces extend outwards along the side walls, inclined to the right upper portion, in the second circulation grooves. The first blocking piece and the second blocking piece are arranged on the circulation assembly, the first blocking piece and the second blocking piece extend outwards along the left-lower-inclined side walls and the right-upper-inclined side walls of the first circulation groove and the second circulation groove respectively, and water flow can roll up and down and rotate and disturb when sufficiently disturbed left and right. The heat absorption performance of water flow is improved.

The present invention relates to a spoiler for a vehicle and a vehicle equipped with the same. The spoiler comprises a spoiler; a linkage mechanism connected to the spoiler to drive its movement; a base adapted to be fixed to the vehicle's tailgate, the base having a linkage mounting groove formed therein for accommodating the linkage mechanism; and a connecting bracket fixed to the bottom of the linkage mounting groove, securing the linkage mechanism to the tailgate via the connecting bracket. The spoiler of the present invention optimizes the load transfer path and prevents deformation and damage to the tailgate.

The utility model belongs to the technical field of new energy automobiles, and particularly discloses a new energy automobile high-pressure liquid heater which comprises a heater body, a thick film heating plate, a heat insulation plate, a cover plate and an overheating protection circuit which are sequentially installed from bottom to top. The overheating protection circuit comprises four thermistors Rt1, Rt2, Rt3 and Rt4, an N-type MOS tube, a relay KJ, a heating resistance wire Rh, a resistor R1, a resistor R2, a resistor R3, a low-voltage direct-current power supply and a high-voltage direct-current power supply. According to the thick film heating plate, the water-drop-shaped turbulent flow columns and the turbulent flow teeth are arranged, so that the heat conduction efficiency and the heat exchange efficiency of the thick film heating plate in liquid are improved, and better convective heat exchange is realized; and the overheating protection circuit is arranged, so that the reliability of the heater during over-temperature protection is improved, and the heater is not only controlled by software.

The utility model belongs to the technical field of test boxes, and particularly relates to a high-low temperature test box with uniform heating. Comprising test cavities which are arranged in a test box at intervals left and right; a placement net plate is embedded in the bottom of the test cavity; the fans are arranged below the placing net plate in a bilateral symmetry manner; the air inlet end of the fan is communicated with the test cavity through the placing screen plate, and the air outlet end of the fan is communicated with the air duct cavity; the air duct cavities are distributed on the left side wall and the right side wall of the test cavity in a bilateral symmetry manner; a spoiler is vertically and obliquely arranged in the air duct cavity, and an air distribution plate is arranged at the air return end of the air duct cavity. According to the utility model, through the arrangement of the spoiler and the air distribution plate in the air duct cavity, high and low temperature airflow with uniform airflow distribution can be provided for the interior of the test cavity, so that the temperature rise rates of different areas are consistent, and the uniform heating effect during product testing is further improved.

The diaphragm pump comprises a pump head, the pump head is provided with a liquid inlet, a liquid outlet, a liquid inlet cavity communicating with the liquid inlet, a liquid outlet cavity communicating with the liquid outlet and an extrusion cavity communicating with the liquid inlet cavity and the liquid outlet cavity, and the diaphragm pump further comprises a rolling turbulent flow piece arranged in the liquid inlet cavity and / or the liquid outlet cavity. The rolling turbulent flow piece can roll in the liquid inlet cavity and / or the liquid outlet cavity under the impact of water flow, and turbulent flow is conducted on the water flow; the utility model further discloses a water purifier which comprises the diaphragm pump. Through the arrangement of the rolling spoiler, when water flow moving at a high speed makes contact with and collides with the rolling spoiler, kinetic energy of water flow is converted into motion kinetic energy of the rolling spoiler, so that fluid with a slow flow speed does not cause large vibration of the cavity wall when the fluid collides with the cavity wall; meanwhile, friction noise generated when the water flow flows through the cavity wall is correspondingly reduced, and an excellent water flow noise reduction effect is achieved in a high-flow-speed machine according to the technical scheme.

The invention relates to the technical field of heat exchanger design, and provides a supercritical LNG heat exchanger design method and system.The method comprises the steps that A, a wing-shaped fin spoiler is adopted to be installed in a PCHE channel, an internal spoiler structure matched with the channel is formed, and the heat transfer performance of a supercritical LNG mixed working medium is enhanced; b, by adjusting the heat transfer process of the mixed working medium in the channel, the heat transfer performance and the flow resistance of the mixed working medium in the channel of the PCHE are balanced; c, regulating and controlling operable parameters through a multi-objective numerical optimization technology so as to balance the channel internal heat transfer performance and flow energy consumption of the PCHE; wherein the operable parameters are used for directly regulating and controlling the heat transfer and flow process in the PCHE channel. According to the invention, the average wall temperature can be reduced by 2.24% through the wing-shaped fin structure, and the increase of the pressure drop in the PCHE channel is controllable.

The invention discloses an anti-scouring system for an offshore pile foundation, belongs to the technical field of offshore pile foundations, and can solve the problems that in the prior art, the installation difficulty is large, and the adaptability to the marine environment is poor. The system comprises a plurality of spoilers which are annularly distributed in the circumferential direction of the pile foundation. The horizontal plane projection of the spoiler is in a symmetrical sharp corner shape, the spoiler comprises a sharp corner end and a diffusion end which are opposite to each other, the sharp corner end is elastically connected with the pile foundation and can vertically swing under the action of ocean current, and the diffusion end overhangs in the direction away from the pile foundation; the center axis of the spoiler intersects with the axis of the pile foundation, and the sharp corner end is higher than the diffusion end. The spoiler is provided with two wing plates which are symmetrically distributed along the central axis of the spoiler, and the section of each wing plate on the section perpendicular to the central axis is in a concave arc shape. And a gap is formed between the diffusion ends of the adjacent spoilers. The anti-scour protection device is used for anti-scour protection of the offshore pile foundation.

The invention relates to an empennage control method and assembly, a medium, a controller, a program product and a vehicle, and the empennage control method comprises the steps that information of the environment where the vehicle is located is obtained; and the empennage is controlled to be opened or closed according to the environment information. Intelligent opening and closing of the empennage based on the external environment are achieved by obtaining the information of the environment where the vehicle is located and automatically controlling opening or closing of the empennage according to the information. According to the intelligent regulation and control mechanism, the manual regulation requirement of a driver is reduced, it is ensured that the empennage state is matched with the environmental condition, the vehicle energy consumption and performance are optimized, and the driving experience and the vehicle efficiency are improved.

A vehicle rear structure includes a spoiler device at a rear bumper of a vehicle; a floor panel; left and right side frames at two sides of the floor panel and extending along a front-rear direction of the vehicle; and an impact beam extending along a left-right direction of the vehicle and connected to rear ends of the left and right side frames through a connecting portion. The spoiler device includes a movable portion movable between a storage position connected to the rear bumper and an expansion position protruding from the rear bumper toward a rear side of the vehicle; and at least one fixed portion including a driving component for driving the movable portion to move in the front-rear direction of the vehicle, at a further rear side of the floor panel, and at the connecting portion connected between the left and right side frames and the impact beam.

The utility model discloses a motor and a stator core, and the motor comprises a housing which is provided with an oil inlet; the stator core is arranged in the shell; the winding is arranged on the stator core; in the radial direction, the middle part of the stator core and the shell jointly define a first oil inlet channel, the first oil inlet channel surrounds the middle part in the circumferential direction and communicates with an oil inlet of the shell, the middle part comprises a turbulent flow part, and the turbulent flow part defines a plurality of oil inlet branches communicating with one another in the first oil inlet channel; in the axial direction, the end parts of the stator iron core are arranged on the two opposite sides of the middle part, part of the end parts are in sealed connection with the shell, and each end part comprises a second oil inlet channel and an oil spraying hole; in the axial direction, one end of the second oil inlet channel communicates with the oil inlet branch, and the other end of the second oil inlet channel communicates with the oil spraying hole. The cooling device can improve the cooling effect and reduce the production cost.

The invention belongs to the field of water conservancy projects, and particularly relates to a concrete dam body anti-icing air blowing structure which comprises a disc-shaped spiral air pipe, a plurality of spokes, an internal thread air cap, a turbulent flow component, a floating raft component and a reciprocating pneumatic device.The concrete dam body anti-icing air blowing structure adopts three core designs of disc-shaped spiral air pipe airflow optimization, multi-stage turbulent flow linkage and floating raft self-adaptive adjustment; a bubble curtain generated by the disc-shaped spiral air pipe bursts on the surface layer of the water body; meanwhile, the spoiler swings to disperse the water to multiple sides, and surface water flow movement is accelerated; vertical vortexes are generated in combination with movement of the water rolling wheels to promote heat exchange of upper and lower water layers and destroy an ice layer crystallization environment; the inhibition effect on ice layer crystallization is improved through multi-directional disturbance and heat exchange of the horizontal layer and the vertical layer; the problems of uneven airflow, insufficient disturbance, poor adaptability and the like in a traditional anti-icing technology are solved, and the efficient, energy-saving and long-service-life dam body anti-icing effect is achieved.

A car spoiler may include a spoiler, and the spoiler has two arms, a main body, and two lateral portions. The two arms secured on a vehicle are connected to the main body, and each of two lateral ends of the main body is connected to one lateral portion. A rear side of the main body has at least a spoiler piece, and the spoiler piece is assembled with the main body through any number of connecting member, so that the different shapes, sizes, angles and curvatures of spoiler piece is detached, replaced, and reassembled with the main body to improve the stability of the vehicle.

The utility model relates to a horizontal tubular air preheater with turbolators, which is characterized in that a first-stage air preheater and a second-stage air preheater are arranged in a frame, a plurality of turbolator heat exchange tubes are respectively arranged in the first-stage air preheater and the second-stage air preheater, flue gas sequentially and transversely scours the second-stage air preheater and the first-stage air preheater, and the turbolator heat exchange tubes are arranged in the first-stage air preheater and the second-stage air preheater. Flue gas and air flow in the countercurrent direction, the flue gas exchanges heat with the air in the turbolator heat exchange tubes, and a plurality of rows of guide plates are obliquely arranged at the top and the bottom of the frame respectively to prevent the flue gas from forming flue gas corridors on the upper side and the lower side. The turbulent flow is increased, so that the thickness of a retention bottom of main heat resistance of convective heat transfer is reduced, heat transfer is enhanced, and the heat transfer coefficient K is increased by 50% compared with that of a common tubular preheater.

In the present disclosure, the side spoiler is provided on a lower side of a mobility vehicle so that aerodynamic performance is improved, and a deployment angle of the side spoiler is controlled according to driving conditions and road conditions so that desired aerodynamic performance is realized, and damage to the side spoiler is prevented. In addition, introduced is a side spoiler device for the mobility vehicle, in which the side spoiler is divided into a plurality of side spoilers so that aerodynamic performance for each driving situation is optimized through individual control of each side spoiler.

The utility model discloses a granulating device for PVC (polyvinyl chloride) sizing material processing, which belongs to the technical field of granulating and comprises an extruder, a water tank support arranged on the rear side of the extruder, a cooling water tank fixedly mounted at the upper end of the water tank support, a driving motor fixedly mounted on the outer wall of the cooling water tank, and a turbulent flow component mounted in the cooling water tank. The turbulent flow assembly is fixedly connected with an output shaft of the driving motor, the turbulent flow assembly is composed of a reciprocating turbulent flow device and two rotary turbulent flow devices, the two rotary turbulent flow devices are fixedly installed at the two ends of the reciprocating turbulent flow device respectively, and by arranging the turbulent flow assembly and the driving motor, water in the cooling water tank can be disturbed and mixed; therefore, convective heat exchange of the cooling water in the cooling water tank is enhanced, the temperature distribution of the cooling water in the cooling water tank is more uniform, the temperature gradient is reduced, the speed of transferring heat from the extruded adhesive tape to the cooling water can be further improved, and finally the cooling efficiency of the extruded adhesive tape can be improved.

The tailgate spoiler storage system described herein adds storage to a vehicle tailgate spoiler. The tailgate spoiler storage system includes 1) a tailgate pivotally connected to a cargo box of a vehicle and 2) a spoiler extending behind the tailgate. The spoiler includes 1) an upper member supported on a top surface of the tailgate, 2) a vertical member extending from the upper member along a rear surface of the tailgate, and 3) an angled bottom member extending between the vertical member and the upper member. The tailgate spoiler storage system also includes a pullout drawer disposed within, and laterally extendable from, the spoiler.

An adjustable rear spoiler comprises a rear wing which extends above a vehicle body along a vehicle width direction, a support plate disposed at both ends of the rear wing to support the rear wing such that the rear wing is rotatable about a rotation axis that extends in the vehicle width direction, an electric motor disposed below each of the support plates, a link extending in a vertical direction, an upper end of the link connected to an end of the rear wing; and, a lifting mechanism which moves the link up and down by rotating a rotor of the electric motor.

The utility model relates to a hopper bottom lifting and cleaning mechanism which comprises a hopper and a cleaning and lifting support arranged at the bottom of the hopper, the cleaning and lifting support comprises a water inlet pipe and a spraying frame, one end of the water inlet pipe is connected with an external water source, and the other end of the water inlet pipe is communicated with the spraying frame. The outer cleaning pipeline surrounds the hopper and is parallel to the lower port of the hopper, the outer cleaning pipeline is connected with a plurality of outer nozzles, the inner cleaning pipeline is opposite to the lower port of the hopper and is vertically arranged, and the inner cleaning pipeline is connected with inner nozzles. The inner cleaning pipeline sprays the interior of the hopper, the outer cleaning pipeline sprays the exterior of the hopper, the inner cleaning pipeline and the outer cleaning pipeline are matched to efficiently and comprehensively clean the hopper, the lifting driving mechanism drives the cleaning lifting support to ascend and descend, ascending and descending are stable, and in-place is accurate. The problems that a complex spoiler structure is arranged in the bottom of the hopper and a valve plate of an automatic valve opening structure at the bottom of the hopper is difficult to clean are solved.

The invention discloses an aircraft low-noise bionic flap based on side edge local turbulent flow and a design method, and belongs to the field of aircraft design. The high lift device is composed of a slat and a main wing, the high lift device comprises an inner flap, an outer flap, a noise reduction system and a driving system, the inner flap and the outer flap are installed on the high lift device, the noise reduction system is arranged at the end, close to the outer flap, of the inner flap, and the noise reduction system is driven by the driving system located in the inner flap; the noise reduction system comprises bionic nodules and asymmetric wingtip end plates, the bionic nodules are arranged on the end face of the inner flap, and the asymmetric wingtip end plates are arranged on the two sides of the inner flap. Aiming at the problems of influence on aerodynamic performance, generation of extra noise and complex structure in a flap side edge noise reduction method, the invention provides an aircraft low-noise bionic flap based on side edge local turbulent flow, and the effect of reducing intermediate-frequency broadband noise of the flap is achieved while the aerodynamic performance of a high lift device is ensured.

The invention relates to the technical field of soil disintegration measurement, and discloses a test device for a soil disintegration test, which comprises a shell, the outer wall of the shell is rotatably connected with a turntable, the top of the shell is fixedly connected with a suspension rod, the outer wall of the suspension rod is fixedly connected with an iron wire net, and the inner wall of the iron wire net is fixedly connected with a soil taking knife sample. When a cylinder rotates, two balancing weights slide in the direction away from each other, a ball head is extruded to make contact with inclined faces on two spoilers, the two spoilers are extruded to move in the direction away from each other, and the water contact area of the two spoilers and the outer wall of a fixed shell is increased; water is driven to rotate along with the cylinder under the limitation of the flow guide plate, and part of water flow can pass through the flow guide holes in the flow guide plate, so that the rotating speed difference generated by inner and outer water bodies due to instantaneous acceleration of the cylinder is effectively reduced, and then local vortex is generated.

A movable spoiler device is provided in the disclosure. The movable spoiler device includes: a fixed part, fixed on a body of a vehicle; a movable part, configured to be movable between a storage position connected to the fixed part and a deployed position protruding from the fixed part toward rear of the vehicle; an actuator, disposed on the fixed part and drives the movable part to move in a front-rear direction of the vehicle; and a cover member, disposed on the fixed part and connected to the movable part so as to be linked with the movable part, in which there is a gap between the movable part and the fixed part due to the movement of the movable part, when the movable part moves from the storage position to the deployed position, the cover member is driven by the movable part to move and cover the gap.