WO2019210748A1 - 一种伸缩板 - Google Patents

一种伸缩板 Download PDF

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Publication number
WO2019210748A1
WO2019210748A1 PCT/CN2019/078984 CN2019078984W WO2019210748A1 WO 2019210748 A1 WO2019210748 A1 WO 2019210748A1 CN 2019078984 W CN2019078984 W CN 2019078984W WO 2019210748 A1 WO2019210748 A1 WO 2019210748A1
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WO
WIPO (PCT)
Prior art keywords
telescopic
fixed
slide rail
rail
motor
Prior art date
Application number
PCT/CN2019/078984
Other languages
English (en)
French (fr)
Inventor
吕福来
吕雯隆
Original Assignee
深圳市福隆智能科技发展有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市福隆智能科技发展有限公司 filed Critical 深圳市福隆智能科技发展有限公司
Priority to US16/966,491 priority Critical patent/US10947068B2/en
Priority to JP2020565017A priority patent/JP7085771B2/ja
Publication of WO2019210748A1 publication Critical patent/WO2019210748A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/28—Loading ramps; Loading docks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/28—Loading ramps; Loading docks
    • B65G69/30—Non-permanently installed loading ramps, e.g. transportable
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/483—Sliding drawers; Slides or guides therefor with single extensible guides or parts
    • A47B88/487—Sliding drawers; Slides or guides therefor with single extensible guides or parts with rollers, ball bearings, wheels, or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • A61G3/06—Transfer using ramps, lifts or the like
    • A61G3/061—Transfer using ramps, lifts or the like using ramps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/43—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle
    • B60P1/433—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle the loading floor or a part thereof being movable to form the ramp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
    • B60R3/02—Retractable steps or ladders, e.g. movable under shock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D23/00—Construction of steps for railway vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D23/00—Construction of steps for railway vehicles
    • B61D23/02—Folding steps for railway vehicles, e.g. hand or mechanically actuated
    • B61D23/025—Folding steps for railway vehicles, e.g. hand or mechanically actuated electrically or fluid actuated

Definitions

  • the invention particularly relates to a telescopic panel.
  • the telescopic plate is a common mechanical structure that is mainly used to hide the plate structure and protrude when needed, and is a space-saving structure. It is mainly used in car retractable pedals, transport loading and unloading transition boards, building tooling, home improvement and so on.
  • most of the expansion panels used on the market now have the problems of single function, too small turning angle and unadjustable, which cannot meet the needs of users.
  • the present invention provides the following technical solutions:
  • the present invention provides a telescopic panel, comprising: a slide rail structure, a rotating structure, a driving structure, a circulating structure and a support frame, the slide rail structure comprising at least one fixed slide rail and at least one telescopic slide rail, the telescopic slide
  • the drive structure includes at least one motor
  • the rotating structure includes at least one double sheave
  • the double sheave is mounted to one end of the motor
  • the circulating structure includes an upper connection
  • the upper connecting member and the lower connecting member are wound around the double sheave and extend into the fixed sliding rail to be fixedly connected with the telescopic sliding rail
  • the supporting bracket is mounted on the telescopic sliding rail a positioning hole is disposed on an inner wall of the end of the fixed rail, and a front end of the telescopic rail is provided with a positioning slot for use with the positioning bolt, and the upper connecting member and the lower connecting member pull the telescopic sliding rail to realize The telescopic slide rail slides in the fixed slide rail, and
  • the angle of rotation of the telescopic slide rail around the positioning pin is 0-100°.
  • the circulation structure further includes a guide wheel, a swing arm and a pulley
  • the guide wheel is fixed on the top of the end of the fixed slide rail
  • the pulley is fixedly connected to the telescopic slide rail through the swing arm
  • the upper connecting member is fixed to the telescopic sliding rail through the guide wheel and the pulley
  • the lower connecting member is fixed to the telescopic sliding rail after passing through the pulley.
  • the telescopic slide rail comprises a sliding portion, a connecting portion and a mounting portion, the connecting portion, the sliding portion and the mounting portion are integrally formed, and the sliding portion slides at an opening of the fixed sliding rail,
  • the mounting portion is exposed and used to mount the support frame, and a front end of the connecting portion is provided with a through hole for articulating with the swing arm.
  • the top end of the fixed rail is provided with a square hole, a baffle and a through hole, and the square hole is in communication with the through hole, and the square hole is used for the telescopic sliding when the telescopic slide rotates a front end of the rail passes through the square hole, the baffle is used to abut the swing arm when the telescopic slide rail is retracted, the through hole is for receiving the guide wheel, and the upper connecting member passes through The through hole enters the fixed rail through the guide wheel.
  • the telescopic board further includes at least one pair of fixing structures for fixing the fixed rails, wherein one fixing structure is fixed to the top of the front end of the fixed rail, and the other fixing structure is fixed to the end of the fixed rail.
  • the top portion is coaxial with the center line of the via hole, and the guide wheel passes through the through hole and is fixed to the lower end of the fixing structure.
  • the double groove wheel, the fixed slide rail and the telescopic slide rail are all one, and the motor is two, the support frame is movably connected to the telescopic slide rail by a bracket, the arc bracket and the motor The motor is fixedly mounted to the mounting portion, and the motor drives the arcuate bracket to rotate around the telescopic slide rail to drive the support bracket to rotate around the telescopic slide rail.
  • the angle of rotation of the support frame around the telescopic slide rail is 0-360°.
  • the double groove wheel, the fixed slide rail and the telescopic slide rail are two, and the motor is one.
  • the double groove wheel is installed at two ends of the motor, and two fixed slide rails and a telescopic slide rail extend. The directions are the same and parallel to each other, and the support frame is fixedly mounted on the two telescopic slide rails.
  • the support frame comprises a pallet, a lining plate and a skid plate, and the lining plate is located between the pallet and the skid plate.
  • the technical scheme of the invention provides a telescopic plate, uses a motor to control the telescopic plate to realize the function of telescopic and rotating, and can remotely adjust the rotation angle to meet the needs of the user, and provides convenience for use, and has a simple structure.
  • the range of rotation angle of the adjustment is large.
  • FIG. 1 is a schematic structural view of a first embodiment of a stretch panel of the present invention
  • FIG. 2 is a schematic structural view of another angle of the first embodiment of the expansion panel of the present invention.
  • FIG. 3 is a schematic structural view of a second embodiment of the expansion panel of the present invention.
  • FIG. 4 is a schematic structural view of a fixed slide rail of the present invention.
  • Figure 5 is a schematic structural view of a telescopic slide rail of the present invention.
  • Figure 6 is a partial structural view of Figure 1 after the fixed rail is removed;
  • Figure 7 is a schematic structural view of a bow bracket of the present invention.
  • Figure 8 is a disassembled view of the thrust bearing and the hinge bushing of the present invention.
  • Figure 9 is a partial enlarged view of Figure 3.
  • connection may be a fixed connection, a detachable connection, or an integral; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • connecting may be a fixed connection, a detachable connection, or an integral; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • connecting may be a fixed connection, a detachable connection, or an integral; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • first, second, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • a telescopic plate 100 a , 100b includes a slide rail structure 10 , a rotating structure 20 , a driving structure 30 , a circulation structure 40 , and a support frame 50 .
  • the slide rail structure 10 includes at least a fixed slide rail 11 and at least one telescopic slide rail 12, the telescopic slide rail 12 sliding in the fixed slide rail 11, the drive structure 30 comprising at least one electric motor 31, the rotating structure 20 comprising at least one double slot
  • the wheel 21 is mounted on one end of the motor 31.
  • the circulation structure 40 includes an upper connecting member 41 and a lower connecting member 42.
  • the upper connecting member 41 and the lower connecting member 42 are wound around the double The slotted wheel 21 extends into the fixed rail 11 and is fixed to the telescopic slide rail 12.
  • the support bracket 50 is mounted on the telescopic slide rail 12, and the inner wall of the fixed slide rail 11 is provided with a positioning bolt 111.
  • the front end of the telescopic slide rail 12 is provided with a positioning slot 1211 for use with the positioning pin 111.
  • the upper connecting member 41 and the lower connecting member 42 pull the telescopic sliding rail 12 to realize the telescopic sliding rail 12
  • the sliding rail 11 slides, and the positioning bolt 111 cooperates with the positioning slot 1211.
  • the telescopic slide rail 12 is rotated around the positioning bolt 111, so that the support frame 50 slides and rotates relative to the fixed slide rail 11.
  • the telescopic slide rail 12 is installed in parallel with the fixed rail 11 to save space.
  • the motor can be controlled by the remote controller. 31 is operated to control the double sheave 21 to rotate in the first direction, and the upper connecting member 41 wound around the double sheave 21 pulls the telescopic slide rail 12 to slide outside the fixed rail 11 to reach the fixed rail 11
  • the support frame 50 is extended and rotated; when the use is completed, the motor 31 can be controlled to operate by the remote controller, thereby controlling the double sheave 21 to rotate in the second direction, and the lower connector of the double sheave 21 is wound.
  • the telescopic slide rail 12 Pulling the telescopic slide rail 12 to slide into the fixed slide rail 11 to drive the support frame 50 to contract.
  • the directions of the first direction and the second direction are opposite, for example, the first direction is a clockwise direction, and the second direction is a counterclockwise direction.
  • the technical solution of the present invention provides a telescopic plate 100a, 100b, and uses the motor 31 to control the support plate 50 to realize the functions of telescopic and rotating, and at the same time, the rotation angle can be adjusted by remote operation to meet the needs of the user, and the convenience of use is provided. Moreover, the structure is simple, and the adjustable range of rotation angle is large.
  • the support frame 50 can be controlled to a desired position by a one-button linkage control or independent control of the intelligent controller, and the running stroke can set the starting point position, the intermediate point position and the end point position, where the intermediate point position refers to between the strokes.
  • a common position is not the midpoint of the stroke; if you need to adjust the angle and position of the rotation of the support frame 50, you can adjust it by the remote control to the desired position.
  • the motor 31 is an automatic tubular motor, which is not only small in size, but also has a large pulling force, and can be hidden in the ceiling.
  • the motor 31 can be controlled by a remote controller or by Bluetooth of a mobile phone, and the running stroke of the motor 31 can be arbitrarily set, and can be stopped at any point of the stroke.
  • the angle of rotation of the telescopic slide rail 12 around the positioning pin 111 is 0-100°, and the range of the rotation angle is large, and the telescopic slide rail 12 can be rotated by the remote control motor 31 to adjust to the optimal position.
  • the stretch panels 100a, 100b are mainly used in home and architectural decoration, such as bedrooms, lobby and conference rooms.
  • the expansion panels 100a, 100b of the present invention can also be applied to passenger cars or transport vehicles.
  • the circulation structure 40 further includes a guide wheel 43, a swing arm 45 and a pulley 44 fixed to the top of the end of the fixed slide rail 11, and the pulley 44 passes through the swing arm 45 and the
  • the upper and lower connecting members 41 are fixedly connected to the telescopic slide rails 12 through the guide wheels 43 and the pulleys 44.
  • the lower connecting members 42 are fixed to the rails 44 through the pulleys 44.
  • the telescopic slide rail 12 is described.
  • the double grooved wheel 21 includes a first groove and a second groove adjacent to the first groove, the upper connecting member 41 is received in the first groove, and the lower connecting member 42 is received in the In the second slot.
  • the upper connecting member 41 and the lower connecting member 42 are both steel wire ropes, have high tensile strength and toughness, have good soft performance and are safe and reliable to use.
  • the telescopic slide rail 12 includes a sliding portion 121 , a connecting portion 122 , and a mounting portion 123 .
  • the connecting portion 122 , the sliding portion 121 and the mounting portion 123 are integrally formed, and the sliding portion 121 is The mounting portion 123 is exposed and used to mount the support frame 50.
  • the front end of the connecting portion 122 is provided with a through hole 1212 for the swing arm 45. Activity articulated.
  • the first roller 1221 is connected to the head of the connecting portion 122, which can reduce the resistance generated when the telescopic slide rail 12 slides.
  • the positioning slot 1211 is "U" shaped and located at the bottom of the front end of the sliding portion 121.
  • the length of the mounting portion 123 is smaller than the length of the connecting portion 122, preventing the telescopic slide rail 12 from rotating. Interference with the fixed slide rail 11.
  • the top end of the fixed rail 11 is provided with a square hole 112, a baffle 113 and a through hole 114.
  • the square hole 112 communicates with the through hole 114, and the square hole 112 is used for the
  • the baffle 113 is used to press the swing arm 45 against the swing arm 45 when the telescopic slide rail 12 is retracted for rotation.
  • the through hole 114 is for receiving the guide wheel 43, and the upper connecting member 41 passes through the through hole 114 and passes through the guide The wheel 43 enters the fixed slide rail 11.
  • top end of the fixed slide rail 11 is provided with a top ejector 115.
  • the top ejector 115 balances the vibration generated when the telescopic slide rail 12 is in operation, reduces noise, and resists the expansion and contraction when rotating. The slide rail 12 is prevented from falling off the fixed slide rail 11.
  • the length from the connection between the telescopic slide rail 12 and the swing arm 45 to the positioning pin 111 is the force arm of the telescopic slide rail 12 when the rotating rail 12 is rotating, and the pulling force of the lower connecting member 42 is The force arm forms a moment to rotate and telescopically slide the telescopic slide rail 12.
  • the telescopic plates 100a, 100b further include at least one pair of fixing structures 60 for fixing the fixed rails 11, wherein one fixing structure 60 is fixed to the top of the front end of the fixed rails 11, and the other is fixed.
  • the structure 60 is fixed to the top of the end of the fixed rail 11 and coaxial with the center line of the through hole 114.
  • the guide wheel 43 passes through the through hole 114 and is fixed to the lower end of the fixing structure 60.
  • the present invention provides a first embodiment of a telescopic panel 100a disposed in a ceiling of a building or a passenger car, and the fixed rail 11 is fixedly mounted on the ceiling.
  • the support frame 50 is equipped with various display devices, cameras, and the like.
  • the support plate 50 can protrude from the ceiling and rotate at an angle, and protrudes from the ceiling when in use, and does not need to be retracted when used. Hidden in the ceiling, saving space.
  • the two-slotted wheel 21, the fixed sliding rail 11 and the telescopic sliding rail 12 are all one, and the two electric motors 31 are two, and the supporting frame 50 is movably connected to the telescopic sliding rail 12 through the arcuate bracket 70,
  • the bracket 70 is fixedly connected to the motor 31.
  • the motor 31 is fixedly mounted to the mounting portion 123.
  • the motor 31 drives the bracket 70 to rotate around the telescopic slide 12 to drive the support.
  • the frame 50 rotates.
  • the angle of rotation of the support frame 50 around the telescopic slide rail 12 is 0-360°.
  • the support frame 50 can be driven by the remote control motor 30.
  • the telescopic slide rail 12 rotates to meet the user's viewing of the display screen from different orientations, thereby improving the convenience of use.
  • the arcuate bracket 70 is provided with an oblong hole 71 and a protruding post 72.
  • the oblong hole 71 is fixedly connected to the shaft head of the motor 31, and the lower end of the protruding post 72 is sleeved with a hinge bushing 73.
  • the hinge bushing 73 is fixed to the mounting portion 123 by bolts.
  • the hinge bushing 73 is connected with a thrust bearing 74 therein to reduce the friction generated by the rotation of the support plate 50, and the motor 31 having a smaller torque can be selected.
  • the extension plate 100a further includes a power elastic stretchable hose 81 for accommodating a power cord, a network cable, and the like to prevent clutter.
  • the expansion plate 100a of the first embodiment of the present invention is disposed in a ceiling of a building, a passenger car, or the like, and the telescopic slide 12 is hidden in the ceiling. In an unused state, the telescopic slide 12 and the The fixed slide rails 11 are installed in parallel, which can save space.
  • the first motor 31 can be controlled by the remote controller to control the double groove wheel 21 to rotate in the first direction and wrap around the double groove wheel.
  • the upper connecting member 41 of the 21 pulls the telescopic slide rail 12 to slide outside the fixed sliding rail 11, and the linear movement stops when reaching the end of the fixed sliding rail 11, with the tension of the upper connecting member 41 and the telescopic sliding rail 12 and the support
  • the positioning pin 111 cooperates with the positioning slot 1211 to rotate the telescopic slide rail 12 around the positioning pin 111, thereby causing the support frame 50 to extend and rotate.
  • the remote control can be remotely controlled.
  • the second motor 31 is controlled to rotate the support frame 50 along the bow bracket 70 around the telescopic slide rail 12, and the rotation angle is 0-360°, which can be used for different orientations; when the use is completed, the remote controller can be used.
  • the first motor 31 is controlled to rotate the double sheave 21 in the second direction, and the lower connecting member 42 wound around the double sheave 21 pulls the telescopic slide 12 to slide into the fixed rail 11 . Thereby, the support frame 50 is contracted.
  • the directions of the first direction and the second direction are opposite, for example, the first direction is a clockwise direction, and the second direction is a counterclockwise direction.
  • the present invention provides a second embodiment of a telescopic plate 100b, which is disposed in a passenger car as a telescopic pedal to facilitate people getting off the vehicle. It is a pedal with strong bearing capacity.
  • the two-slotted wheel 21, the fixed slide rail 11 and the telescopic slide rail 12 are two, and the motor 31 is one.
  • the double-slotted wheel 21 is mounted on the two ends of the motor 31, and the two fixed slides are
  • the rails 11 and the telescopic rails 12 extend in the same direction and are parallel to each other, and the support brackets 50 are fixedly mounted on the two telescopic slide rails 12.
  • the motor 31 includes a transmission sleeve 311, a fixed-threaded hollow shaft tube 312, and a motor power supply line 313.
  • the motor power supply line 313 is worn from a fixed-thread hollow shaft tube 312 that cooperates with the double sheave 21.
  • the motor 31 is fixed by a bracket 32, wherein one double sheave 21 is mounted at one end of the motor, and the other double sheave 21 is mounted to the other end of the motor 31 through a transmission sleeve 311, two of the transmission sleeves 311
  • the end connection of the double sheave 21 enables the effective diameter of the double sheave 21 to be reduced, and the pulling force of the upper connecting member 41 and the lower connecting member 42 is increased, so that the motor 31 having a smaller torque can be selected.
  • first slot and the second slot of the double-slotted wheel 21 are wound around the elastic springs in opposite directions, and the ends of the elastic springs are respectively fixedly connected with the ends of the upper connecting member 41 and the lower connecting member 42 respectively.
  • the non-stressed side of the upper connecting member 41 and the lower connecting member 42 are in an elastic tension state, and the operation is more stable.
  • the support frame 50 includes a pallet 51 , a lining plate 52 and a skid plate 53 , and the lining plate 52 is located between the pallet 51 and the skid plate 53 .
  • the material of the lining plate 52 is selected from a high molecular polymer to reduce the weight of the elastic plate 100b, and the non-slip plate 53 may be an aluminum alloy, a stainless steel plate or the like.
  • the end of the telescopic slide rail 12 is connected with a pair of second rollers 54.
  • the second roller 54 contacts the ground, and the upper connecting member 41 can be reduced.
  • the pulling force of the lower connecting member 42 prevents the telescopic sliding rail 12 from directly contacting the ground and damaging the telescopic sliding rail 12.
  • the two fixed rails 11 are fixed by a connecting rod to prevent the expansion of the telescopic plate 100b during operation.
  • the telescopic plate 100b of the second embodiment of the present invention is disposed in a large center bus and a passenger car as a telescopic pedal, and the telescopic slide rail 12 is hidden in the chassis of the large bus and the passenger car, and is in an unused state.
  • the telescopic slide rail 12 is installed in parallel with the fixed slide rail 11 to save space.
  • the motor 31 can be controlled by the remote controller to control the double groove wheel 21 along the first direction.
  • the positioning bolt 111 cooperates with the positioning slot 1211 to rotate the telescopic slide rail 12 around the positioning bolt 111, thereby driving the support frame 50 to extend and rotate, and rotate
  • the angle is 0-100°, and the rotation angle can be controlled remotely according to the height of the passenger car from the ground, which is convenient for people to get off.
  • the commonly used rotation angle can be set by the intermediate stroke of the motor 31 to facilitate each use; when the use is completed, the motor 31 can be controlled to operate by the remote controller, thereby controlling the double sheave 21 to rotate in the second direction, and winding
  • the lower connecting member 42 of the double sheave 21 pulls the telescopic slide rail 12 to slide into the fixed rail 11 to drive the support frame 50 to contract.
  • the directions of the first direction and the second direction are opposite, for example, the first direction is a clockwise direction, and the second direction is a counterclockwise direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Transmission Devices (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

一种伸缩板，包括滑轨结构（10）、转动结构（20）、驱动结构（30）、循环结构（40）及支撑架（50），其中，滑轨结构包括固定滑轨（11）和伸缩滑轨（12），驱动结构包括电机（31），转动结构包括双槽轮（21）并安装于电机的一端，循环结构包括上连接件（41）和下连接件（42），上连接件、下连接件缠绕于双槽轮并伸入固定滑轨内与伸缩滑轨固定，支撑架安装于伸缩滑轨，固定滑轨的末端内壁设有定位栓（111），伸缩滑轨的前端设置有定位槽（1211），上连接件、下连接件拉动伸缩滑轨以实现支撑架在固定滑轨中滑动，定位栓与定位槽配合使用以实现伸缩滑轨绕着定位栓转动。该伸缩板利用电机控制以实现支撑架的滑动、转动，同时可以遥控操作调整转动角度以满足使用者的需求，提供了使用的方便性，而且结构简单。

Description

一种伸缩板 技术领域
本发明特别涉及一种伸缩板。
背景技术
伸缩板是一种常见的机械结构，它主要用于将板式结构隐藏，并在需要使用时伸出，属于一种节约空间的结构。其主要使用在汽车伸缩踏板、运输车装卸过渡板、建筑物工装、家装等方面。但是现在市场上使用的伸缩板，大多存在功能单一、转动角度过小以及不可调整的问题，不能满足使用者的需求。
发明内容
本发明的目的在于克服现有技术中存在的缺点，提供一种可伸缩转动且易于调整转动角度以满足使用者需求的伸缩板。
为了实现上述目的，本发明提供如下技术方案：
本发明提供了一种伸缩板，其中，包括滑轨结构、转动结构、驱动结构、循环结构及支撑架，所述滑轨结构包括至少一个固定滑轨和至少一个伸缩滑轨，所述伸缩滑轨在所述固定滑轨内滑动，所述驱动结构包括至少一个电机，所述转动结构包括至少一个双槽轮，所述双槽轮安装于所述电机的一端，所述循环结构包括上连接件和下连接件，所述上连接件、下连接件缠绕于所述双槽轮并伸入所述固定滑轨内与所述伸缩滑轨固定连接，所述支撑架安装于所述伸缩滑轨，所述固定滑轨的末端内壁设有定位栓，所述伸缩滑轨的前端设置有与定位栓配合使用的定位槽，所述上连接件、下连接件拉动所述伸缩滑轨以实现所述伸缩滑轨在所述固定滑轨中滑动，所述定位栓与所述定位槽配合使用以实现所述伸缩滑轨绕着所述定位栓转动，进而实现所述支撑架相对于所述固定滑轨滑动并转动。
其中，所述伸缩滑轨绕所述定位栓转动的角度为0-100°。
其中，所述循环结构还包括导轮、摆臂和滑轮，所述导轮固定于所述固定滑轨的末端顶部，所述滑轮通过所述摆臂与所述伸缩滑轨固定连接，所述上连接件依次经过所述导轮、所述滑轮后固定于所述伸缩滑轨，所述下连接件经过所述滑轮后固定于所述伸缩滑轨。
其中，所述伸缩滑轨包括滑动部、连接部和安装部，所述连接部、所述滑动部和所述安装部一体成型，所述滑动部在所述固定滑轨的开口处滑动，所述安装部外露且用于安装所述支撑架，所述连接部的前端穿设有通孔，用于与所述摆臂活动铰接。
其中，所述固定滑轨的末端顶部设有方孔、挡板和过孔，所述方孔与所述过孔相连通，所述方孔用于所述伸缩滑轨转动时所述伸缩滑轨的前端穿过所述方孔，所述挡板用于所述伸缩滑轨缩进转动时抵住所述摆臂，所述过孔用于收容所述导轮，所述上连接件穿过所述过孔并经所述导轮进入所述固定滑轨中。
其中，所述伸缩板还包括至少一对固定结构用于固定所述固定滑轨，其中一个固定结构固定于所述固定滑轨的前端顶部，另一个固定结构固定于所述固定滑轨的末端顶部并与所述过孔中心线同轴，所述导轮穿过所述过孔并固定于所述固定结构的下端。
其中，所述双槽轮、固定滑轨及伸缩滑轨均为一个，所述电机为两个，所述支撑架通过弓形支架与所述伸缩滑轨活动连接，所述弓形支架与所述电机固定连接，所述电机固定安装于所述安装部，所述电机驱动所述弓形支架绕着所述伸缩滑轨旋转，以带动所述支撑架绕着所述伸缩滑轨旋转。
其中，所述支撑架绕着所述伸缩滑轨旋转的角度为0-360°。
其中，所述双槽轮、固定滑轨及伸缩滑轨均为两个，所述电机为一个，所述双槽轮安装于所述电机的两端，两条固定滑轨、伸缩滑轨延伸方向相同并互相平行，所述支撑架固定安装于两条所述伸缩滑轨上。
其中，所述支撑架包括托板、衬板和防滑板，所述衬板位于所述托板与防滑板之间。
本发明技术方案具有的有益效果：
本发明技术方案通过设置一种伸缩板，利用电机控制伸缩板以实现伸缩、转动的功能，同时可以遥控操作调整转动角度以满足使用者的需求，提供了使用的方便性，而且结构简单，可调的转动角度范围大。
附图说明
图1是本发明伸缩板的第一种实施例的结构示意图；
图2是本发明伸缩板的第一种实施例的另一角度的结构示意图；
图3是本发明伸缩板的第二种实施例的结构示意图；
图4是本发明固定滑轨的结构示意图；
图5是本发明伸缩滑轨的结构示意图；
图6是图1中去掉固定滑轨后的部分结构示意图；
图7是本发明弓形支架的结构示意图；
图8是本发明推力轴承与铰链轴套的拆解图；
图9是图3中的部分放大图；
附图标号说明：
100a、100b-伸缩板，10-滑轨结构，11-固定滑轨，111-定位栓，112-方孔，113-挡板，114-过孔，115-弹顶器，12-伸缩滑轨，121-滑动部，1211-定位槽，1212-通孔，122-连接部，1221-第一滚轮，123-安装部，20-转动结构，21-双槽轮，30-驱动结构，31-电机，311-传动套管，312-固定螺纹空心轴管，313-电机电源线，32-支架，40-循环结构，41-上连接件，42-下连接件，43-导轮，44-滑轮，45-摆臂，50-支撑架，51-托板，52-衬板，53-防滑板，54-第二滚轮，60-固定结构，70-弓形支架，71-长圆孔，72-凸起柱，73-铰链轴套，74-推力轴承，81-螺旋软管。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
在本发明中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
另外，在本发明中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
请参考图1至图9，为本发明的一种伸缩板100a、100b，包括滑轨结构10、转动结构20、驱动结构30、循环结构40及支撑架50，所述滑轨结构10包括至少一个固定滑轨11和至少一个伸缩滑轨12，所述伸缩滑轨12在所述固定滑轨11内滑动，所述驱动结构30包括至少一个电机31，所述转动结构20包括至少一个双槽轮21，所述双槽轮21安装于所述电机31的一端，所述循环结构 40包括上连接件41和下连接件42，所述上连接件41、下连接件42缠绕于所述双槽轮21并伸入所述固定滑轨11内与所述伸缩滑轨12固定，所述支撑架50安装于所述伸缩滑轨12，所述固定滑轨11的末端内壁设有定位栓111，所述伸缩滑轨12的前端设置有与定位栓111配合使用的定位槽1211，所述上连接件41、下连接件42拉动所述伸缩滑轨12以实现所述伸缩滑轨12在所述固定滑轨11中滑动，所述定位栓111与所述定位槽1211配合使用以实现所述伸缩滑轨12绕着所述定位栓111转动，进而实现所述支撑架50相对于所述固定滑轨11滑动并转动。
在本发明伸缩板100a、100b未使用的状态下，所述伸缩滑轨12与所述固定滑轨11平行安装，能够节省空间，当需要使用伸缩板100a、100b时，可通过遥控器控制电机31运行，从而控制双槽轮21沿着第一方向转动，缠绕于双槽轮21的上连接件41拉动所述伸缩滑轨12往所述固定滑轨11外滑动，到达固定滑轨11的末端时直线移动停止，随着上连接件41继续拉动以及伸缩滑轨12、支撑架50的重力，所述定位栓111与所述定位槽1211配合使所述伸缩滑轨12绕定位栓11转动，从而带动所述支撑架50伸出并转动；当使用完成后，可通过遥控器控制电机31运行，从而控制双槽轮21沿着第二方向转动，缠绕于双槽轮21的下连接件42拉动所述伸缩滑轨12往固定滑轨11内滑动，从而带动所述支撑架50收缩。其中，第一方向和第二方向的方向相反，比如第一方向为顺时针方向，第二方向为逆时针方向。
本发明技术方案通过设置一种伸缩板100a、100b，利用电机31控制支撑板50以实现伸缩、转动的功能，同时可以遥控操作调整转动角度以满足使用者的需求，提供了使用的方便性，而且结构简单，可调的转动角度范围大。
所述支撑架50可通过智能控制器一键联动控制或者独立控制，运行到所需位置，运行的行程可设置起点位置、中间点位置及终点位置，这里的中间点位置是指行程之间任一点常用的位置，不是行程中点位置；使用时，如需要调 整支撑架50转动的角度和位置，可以通过遥控器控制行程键进行调整，直到所需位置。当本发明的伸缩板100a、100b的支撑架50安装显示屏时，可以使得观赏人观看方向不动而屏幕通过电机31控制进行调整，使用非常方便，并且提高了观赏人观看的舒适感。
在本实施方式中，所述电机31为自动管状电机，不仅体积小巧、拉力大，还可隐藏安装在天花板内。所述电机31可以通过遥控器控制，也可用手机蓝牙控制，所述电机31运行的行程可以任意设定，同时可以在行程的任意点停止。
优选地，所述伸缩滑轨12绕定位栓111转动的角度为0-100°，转动的角度范围大，可以通过遥控控制电机31使所述伸缩滑轨12转动，以调整到最佳位置。
在本实施方式中，伸缩板100a、100b主要应用于家居和建筑装饰中，如卧室、大堂及会议室。当然，本发明的伸缩板100a、100b也可以应用于乘用车或者运输车中。
进一步，所述循环结构40还包括导轮43、摆臂45和滑轮44，所述导轮43固定于所述固定滑轨11的末端顶部，所述滑轮44通过所述摆臂45与所述伸缩滑轨12固定连接，所述上连接件41依次经过所述导轮43、所述滑轮44后固定于所述伸缩滑轨12，所述下连接件42经过所述滑轮44后固定于所述伸缩滑轨12。
进一步，所述双槽轮21包括第一槽和与所述第一槽相邻的第二槽，所述上连接件41收容于所述第一槽，所述下连接件42收容于所述第二槽中。在本实施方式中，所述上连接件41、下连接件42均为钢丝绳，具有较高的抗拉强度和韧性，柔软性能好且使用安全可靠。
请参考图5，所述伸缩滑轨12包括滑动部121、连接部122和安装部123，所述连接部122、所述滑动部121和所述安装部123一体成型，所述滑动部121 在所述固定滑轨11的开口处滑动，所述安装部123外露且用于安装所述支撑架50，所述连接部122的头端穿设有通孔1212，用于与所述摆臂45活动铰接。
优选地，所述连接部122的头部连接有第一滚轮1221，能够减少所述伸缩滑轨12滑动时所产生的阻力。
进一步，所述定位槽1211为“U”形且位于所述滑动部121的前端底部，所述安装部123的长度小于所述连接部122的长度，防止所述伸缩滑轨12在转动的时候与所述固定滑轨11发生干涉。
请参考图4，所述固定滑轨11的末端顶部设有方孔112、挡板113和过孔114，所述方孔112与所述过孔114相连通，所述方孔112用于所述伸缩滑轨12转动时伸缩滑轨12的前端穿过所述方孔112，所述挡板113用于所述伸缩滑轨12缩进转动时抵住所述摆臂45以便所述摆臂45沿着所述挡板113平稳移进所述固定滑轨11内，所述过孔114用于收容所述导轮43，所述上连接件41穿过所述过孔114并经所述导轮43进入所述固定滑轨11中。
进一步，所述固定滑轨11的末端顶部设有弹顶器115，所述弹顶器115起到平衡所述伸缩滑轨12运行时产生的震动，减少噪音，在转动的时候抵住所述伸缩滑轨12，防止脱离所述固定滑轨11而掉落。
优选地，从所述伸缩滑轨12与所述摆臂45的连接处到所述定位栓111的长度为所述伸缩滑轨12在转动时的力臂，所述下连接件42的拉力与该力臂形成力矩使所述伸缩滑轨12转动并伸缩滑动。
请参考图6，所述伸缩板100a、100b还包括至少一对固定结构60用于固定所述固定滑轨11，其中一个固定结构60固定于所述固定滑轨11的前端顶部，另一个固定结构60固定于所述固定滑轨11的末端顶部并与所述过孔114中心线同轴，所述导轮43穿过所述过孔114并固定于所述固定结构60的下端。
请参考图1、图2，本发明提供了一种伸缩板100a的第一种实施例，所述伸缩板100a布置在建筑物、乘用车的天花板内，所述固定滑轨11固定安装于 所述天花板内，所述支撑架50安装各种显示屏、摄像头等使用装置，所述支撑板50可从天花板内伸出并转动角度，使用时从天花板伸出，不需要使用时缩进，隐藏于天花板内，节省了使用空间。其中，所述双槽轮21、固定滑轨11及伸缩滑轨12均为一个，所述电机31为两个，所述支撑架50通过弓形支架70与所述伸缩滑轨12活动连接，所述弓形支架70与所述电机31固定连接，所述电机31固定安装于所述安装部123，所述电机31驱动所述弓形支架70绕着所述伸缩滑轨12旋转，以带动所述支撑架50旋转。
优选地，所述支撑架50绕着所述伸缩滑轨12旋转的角度为0-360°，当所述伸缩滑轨12伸出并完成转动时，可通过遥控控制电机30驱使支撑架50绕着所述伸缩滑轨12旋转，以满足使用者从不同方位观看显示屏，提高了使用的方便性。
进一步，所述弓形支架70设有长圆孔71和凸起柱72，所述长圆孔71与所述电机31的轴头固定连接，所述凸起柱72的下端套接有铰链轴套73，所述铰链轴套73通过螺栓固定于所述安装部123。
进一步，请参考图8，所述铰链轴套73里面接有推力轴承74，减少支撑板50旋转产生的摩擦力，可选择扭矩较小的电机31。
进一步，所述伸缩板100a还包括电源弹性伸缩软管81，所述电源弹性伸缩软管81用于收纳电源线、网线等，防止杂乱。
本发明第一种实施例的伸缩板100a，布置在建筑物、乘用车等天花板内，所述伸缩滑轨12隐藏于天花板内，在未使用的状态下，所述伸缩滑轨12与所述固定滑轨11平行安装，能够节省空间，当需要使用伸缩板100a时，可通过遥控器控制第一个电机31运行，从而控制双槽轮21沿着第一方向转动，缠绕于双槽轮21的上连接件41拉动所述伸缩滑轨12往所述固定滑轨11外滑动，到达固定滑轨11的末端时直线移动停止，随着上连接件41的拉力以及伸缩滑轨12、支撑架50的重力，所述定位栓111与所述定位槽1211配合使所述伸缩 滑轨12绕定位栓111转动，从而带动所述支撑架50伸出并转动，当转动完成后，可通过遥控控制第二个电机31使支撑架50随着弓形支架70绕着所述伸缩滑轨12旋转，旋转角度为0-360°，可满足不同方位地观看使用；当使用完成后，可通过遥控器控制第二个电机31运行到原始位置，再控制第一个电机31使双槽轮21沿着第二方向转动，缠绕于双槽轮21的下连接件42拉动所述伸缩滑轨12往固定滑轨11内滑动，从而带动所述支撑架50收缩。其中，第一方向和第二方向的方向相反，比如第一方向为顺时针方向，第二方向为逆时针方向。
请参考图3和图9，本发明提供了一种伸缩板100b的第二种实施例，所述伸缩板100b布置在乘用车内作为伸缩踏板，以方便人们下车，所述支撑架50为承重能力强的踏板。其中，所述双槽轮21、固定滑轨11及伸缩滑轨12均为两个，所述电机31为一个，所述双槽轮21安装于所述电机31的两端，两条固定滑轨11、伸缩滑轨12延伸方向相同并互相平行，所述支撑架50固定安装于两条所述伸缩滑轨12上。
优选地，请参考图9，所述电机31包括传动套管311、固定螺纹空心轴管312和电机电源线313，电机电源线313从与双槽轮21配合的固定螺纹空心轴管312中穿出，所述电机31通过支架32固定，其中一个双槽轮21安装在电机的一端，另一个双槽轮21通过传动套管311安装于所述电机31的另一端，传动套管311的两端连接双槽轮21能使双槽轮21的有效直径变小，增加上连接件41、下连接件42的拉力，从而可以选择扭矩较小的电机31。
进一步，所述双槽轮21的第一槽、第二槽各缠绕弹性发条，缠绕方向相反，弹性发条的端部分别与上连接件41、下连接件42的端部固定连接，使上连接件41、下连接件42中的非受力侧处于弹性拉紧状态，运行更平稳。
进一步，请参考图3，所述支撑架50包括托板51、衬板52和防滑板53，所述衬板52位于所述托板51与防滑板53之间。所述衬板52的材料选用高分 子聚合物以减轻所述伸缩板100b的重量，防滑板53可选用铝合金、不锈钢板等。
优选地，所述伸缩滑轨12的末端连接有一对第二滚轮54，当伸缩滑轨12转动到所需要的位置时，所述第二滚轮54会跟地面接触，可以减小上连接件41、下连接件42的拉力，防止伸缩滑轨12与地面直接接触而磕坏所述伸缩滑轨12。
进一步，两条固定滑轨11之间用连接杆固定，防止所述伸缩板100b运行时产生晃动。
本发明第二种实施例的伸缩板100b，布置在大中巴、乘用车内作为伸缩踏板，所述伸缩滑轨12隐藏于大中巴、乘用车的底盘内，在未使用的状态下，所述伸缩滑轨12与所述固定滑轨11平行安装，能够节省空间，当需要使用伸缩板100b时，可通过遥控器控制电机31运行，从而控制双槽轮21沿着第一方向转动，缠绕于双槽轮21的上连接件41拉动所述伸缩滑轨12往所述固定滑轨11外滑动，到达固定滑轨11的末端时直线移动停止，随着上连接件41的拉力以及伸缩滑轨12、支撑架50的重力，所述定位栓111与所述定位槽1211配合使所述伸缩滑轨12绕定位栓111转动，从而带动所述支撑架50伸出并转动，转动角度为0-100°，可根据乘用车距离地面的高度来遥控控制转动角度，方便人们下车。当然，常用的转动角度可通过电机31中间行程来设置，以方便每一次的使用；当使用完成后，可通过遥控器控制电机31运行，从而控制双槽轮21沿着第二方向转动，缠绕于双槽轮21的下连接件42拉动所述伸缩滑轨12往固定滑轨11内滑动，从而带动所述支撑架50收缩。其中，第一方向和第二方向的方向相反，比如第一方向为顺时针方向，第二方向为逆时针方向。
本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的 基础上还可以做出其它不同形式的变化或变动。这里无法对所有的实施方式予以穷举。凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。

Claims (10)

  1. 一种伸缩板，其特征在于，包括滑轨结构、转动结构、驱动结构、循环结构及支撑架，所述滑轨结构包括至少一个固定滑轨和至少一个伸缩滑轨，所述伸缩滑轨在所述固定滑轨内滑动，所述驱动结构包括至少一个电机，所述转动结构包括至少一个双槽轮，所述双槽轮安装于所述电机的一端，所述循环结构包括上连接件和下连接件，所述上连接件、下连接件缠绕于所述双槽轮并伸入所述固定滑轨内与所述伸缩滑轨固定连接，所述支撑架安装于所述伸缩滑轨，所述固定滑轨的末端内壁设有定位栓，所述伸缩滑轨的前端设置有与定位栓配合使用的定位槽，所述上连接件、下连接件拉动所述伸缩滑轨以实现所述伸缩滑轨在所述固定滑轨中滑动，所述定位栓与所述定位槽配合使用以实现所述伸缩滑轨绕着所述定位栓转动，进而实现所述支撑架相对于所述固定滑轨滑动并转动。
  2. 根据权利要求1所述的伸缩板，其特征在于，所述伸缩滑轨绕所述定位栓转动的角度为0-100°。
  3. 根据权利要求2所述的伸缩板，其特征在于，所述循环结构还包括导轮、摆臂和滑轮，所述导轮固定于所述固定滑轨的末端顶部，所述滑轮通过所述摆臂与所述伸缩滑轨固定连接，所述上连接件依次经过所述导轮、所述滑轮后固定于所述伸缩滑轨，所述下连接件经过所述滑轮后固定于所述伸缩滑轨。
  4. 根据权利要求3所述的伸缩板，其特征在于，所述伸缩滑轨包括滑动部、连接部和安装部，所述连接部、所述滑动部和所述安装部一体成型，所述滑动部在所述固定滑轨的开口处滑动，所述安装部外露且用于安装所述支撑架，所述连接部的前端穿设有通孔，用于与所述摆臂活动铰接。
  5. 根据权利要求4所述的伸缩板，其特征在于，所述固定滑轨的末端顶部设有方孔、挡板和过孔，所述方孔与所述过孔相连通，所述方孔用于所述伸缩滑轨转动时所述伸缩滑轨的前端穿过所述方孔，所述挡板用于所述伸缩滑轨缩进转动时抵住所述摆臂，所述过孔用于收容所述导轮，所述上连接件穿过所述 过孔并经所述导轮进入所述固定滑轨中。
  6. 根据权利要求5所述的伸缩板，其特征在于，所述伸缩板还包括至少一对固定结构用于固定所述固定滑轨，其中一个固定结构固定于所述固定滑轨的前端顶部，另一个固定结构固定于所述固定滑轨的末端顶部并与所述过孔中心线同轴，所述导轮穿过所述过孔并固定于所述固定结构的下端。
  7. 根据权利要求6所述的伸缩板，其特征在于，所述双槽轮、固定滑轨及伸缩滑轨均为一个，所述电机为两个，所述支撑架通过弓形支架与所述伸缩滑轨活动连接，所述弓形支架与所述电机固定连接，所述电机固定安装于所述安装部，所述电机驱动所述弓形支架绕着所述伸缩滑轨旋转，以带动所述支撑架绕着所述伸缩滑轨旋转。
  8. 根据权利要求7所述的伸缩板，其特征在于，所述支撑架绕着所述伸缩滑轨旋转的角度为0-360°。
  9. 根据权利要求6所述的伸缩板，其特征在于，所述双槽轮、固定滑轨及伸缩滑轨均为两个，所述电机为一个，所述双槽轮安装于所述电机的两端，两条固定滑轨、伸缩滑轨延伸方向相同并互相平行，所述支撑架固定安装于两条所述伸缩滑轨上。
  10. 根据权利要求9所述的伸缩板，其特征在于，所述支撑架包括托板、衬板和防滑板，所述衬板位于所述托板与防滑板之间。
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