WO2016150074A1 - 用于键盘和平板电脑的支撑机构 - Google Patents

用于键盘和平板电脑的支撑机构 Download PDF

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Publication number
WO2016150074A1
WO2016150074A1 PCT/CN2015/086668 CN2015086668W WO2016150074A1 WO 2016150074 A1 WO2016150074 A1 WO 2016150074A1 CN 2015086668 W CN2015086668 W CN 2015086668W WO 2016150074 A1 WO2016150074 A1 WO 2016150074A1
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WO
WIPO (PCT)
Prior art keywords
gear
connecting member
shaft
support mechanism
respect
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Application number
PCT/CN2015/086668
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English (en)
French (fr)
Inventor
杨卫
曾翠霞
朴哲佑
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捷开通讯(深圳)有限公司
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Application filed by 捷开通讯(深圳)有限公司 filed Critical 捷开通讯(深圳)有限公司
Publication of WO2016150074A1 publication Critical patent/WO2016150074A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements

Definitions

  • the present invention relates to a support mechanism and, in particular, to a support mechanism for a keyboard and a tablet.
  • a support mechanism for a keyboard and a tablet includes:
  • a support member rotatably coupled to the first connecting member and capable of supporting the first connecting member;
  • a gear set mounted at a position corresponding to the first connecting member and the second connecting member, The first connecting member rotates at a constant speed relative to the second connecting member, and the supporting member is rotatably rotatable relative to the second connecting member;
  • a locking member connecting the first connecting member, the second connecting member and the gear set, and making the first connecting member and the supporting member respectively at least one specific with respect to the second connecting member The angle is fixed.
  • a side portion of the first connecting member may have a first shaft extending outward
  • a side portion of the second connecting member has a second shaft extending outward
  • the support member is mounted on the first shaft
  • the gear set is mounted at a position corresponding to the first shaft and the second shaft.
  • the gear set may include a first gear, a second gear, a third gear, a fourth gear, and a fifth gear, wherein the first gear and the second gear are sequentially fixedly coupled to the second shaft, the third gear and a fourth gear is fixedly coupled to the support member in sequence such that the third gear meshes with the first gear, the fourth gear meshes with the second gear, and the fifth gear is located outside the fourth gear, fixedly coupled to the first shaft, and The second gear meshes.
  • the locking member may include: a fixed case connecting the first shaft and the second shaft and axially positioning the gear set; a locking cam located at one side of the fixed case and adjacent to the fifth gear; the elastic member Located on the other side of the fixed casing; a locking member located outside the elastic member and capable of imparting a preload force to the elastic member.
  • the outer side of the fifth gear may have a positioning rib
  • the locking cam has a plurality of positioning grooves
  • the plurality of positioning grooves are distributed in a circumferential direction of the locking cam
  • the positioning rib and the plurality of positioning grooves Each can be individually engaged such that the first connector is fixed at a different angle relative to the second connector.
  • first connector is rotatable between 0° and 300° with respect to the second connector, and the second gear and the fifth gear remain engaged.
  • the third gear is a partial gear, and during the rotation of the first connecting member between 0° and 120° with respect to the second connecting member, the first gear is engageable with the third gear when the first connecting member.
  • the first connecting member and the supporting member are overlapped at 0° with respect to the second connecting member at 0°, and the supporting member is opposite to the first connecting member at a position of 120° with respect to the second connecting member.
  • the two connectors are located at 180°.
  • the fourth gear is a partial gear, and the fourth gear is engageable with the second gear during the rotation of the first connecting member between 120° and 300° with respect to the second connecting member, when the first connecting member is opposite When the second connecting member is at a position of 300°, the support member is located at 360° with respect to the second connecting member.
  • the other side of the first connecting member may be provided with an outwardly extending third shaft, and the second connecting The other side of the piece is provided with a fourth axis extending outward, and the positions of the third axis and the fourth axis correspond.
  • the support member, the gear set and the locking member may be disposed at positions corresponding to the third shaft and the fourth shaft.
  • Embodiments in accordance with the present invention enable positioning support at a specified angle to prevent the tablet from tipping over.
  • the precision of the gear set is used to control the angle, and the accuracy is high, the structural strength is reliable. Since the other parts can be automatically moved to the corresponding position when the tablet is opened, the linkage between the components can be realized, which makes the operation simpler.
  • FIG. 1 is an exploded perspective view of a support mechanism for a keyboard and a tablet computer in accordance with an embodiment of the present invention
  • FIG. 2 is a perspective view of an angle control gear set for a support mechanism of a keyboard and a tablet computer in accordance with an embodiment of the present invention
  • FIG. 3 is a view of a locking member for a support mechanism of a keyboard and a tablet connected to a first connector and a second connector, in accordance with an embodiment of the present invention
  • FIG. 4 is a schematic illustration of a locking member for a support mechanism of a keyboard and a tablet computer in accordance with an embodiment of the present invention
  • 5A is a schematic view showing a first connector and a second connector of a support mechanism for a keyboard and a tablet in an engaged state according to an embodiment of the present invention
  • 5B is a view showing an engagement state of a second gear and a fifth gear when the first link and the second link of the support mechanism for the keyboard and the tablet are closed, according to an embodiment of the present invention
  • 5C is a view showing an engagement state of a first gear and a third gear when the first connecting member and the second connecting member of the supporting mechanism for the keyboard and the tablet are closed, according to an embodiment of the present invention
  • 6A is a state diagram of a first connector of a support mechanism for a keyboard and a tablet at a 120° position with respect to a second connector, in accordance with an embodiment of the present invention
  • 6B is a first connection of a support mechanism for a keyboard and a tablet computer in accordance with an embodiment of the present invention. a state of engagement of the second gear and the fifth gear when the connector is in the 120° position relative to the second connector;
  • 6C is a view showing an engaged state of the first gear and the third gear when the first connecting member of the supporting mechanism for the keyboard and the tablet is in the 120° position with respect to the second connecting member according to an embodiment of the present invention
  • 6D is a view showing an engaged state of the second gear and the fourth gear when the first connecting member of the supporting mechanism for the keyboard and the tablet is in the 120° position with respect to the second connecting member according to an embodiment of the present invention
  • FIG. 7A is a state diagram of a first connector of a support mechanism for a keyboard and a tablet at a position of 300° with respect to a second connector, with the front side of the keyboard facing downward, in accordance with an embodiment of the present invention
  • 7B is a view showing an engaged state of the second gear and the fifth gear when the first connecting member of the supporting mechanism for the keyboard and the tablet is in the 300° position with respect to the second connecting member, according to an embodiment of the present invention
  • 7C is a view showing an engaged state of the second gear and the fourth gear when the first connecting member of the supporting mechanism for the keyboard and the tablet is in the 300° position with respect to the second connecting member, according to an embodiment of the present invention.
  • FIG. 1 is an exploded perspective view of a support mechanism for a keyboard and a tablet computer according to an embodiment of the present invention
  • FIG. 2 is a perspective view of an angle control gear set for a support mechanism of a keyboard and a tablet computer according to an embodiment of the present invention.
  • a support mechanism for a keyboard and a tablet includes a first connector 100, a second connector 200, a support 300, a gear set 400, and a locking member 500.
  • the lower portion of the first connector 100 has an upwardly open slot into which the tablet can be mounted and supported.
  • the second connector 200 has a flat surface such that a keyboard can be placed on the surface.
  • the support member 300 is rotatably coupled to the first connector 100 and is capable of supporting the first connector 100 such that the first connector 100 can support the tablet at an angle, thereby preventing the tablet from tipping over.
  • the gear set 400 is mounted at a position corresponding to the first connector 100 and the second connector 200 (that is, a portion of the gear set 400 is mounted on the first connector 100 and a second portion of the gear set 400 is mounted in the second The connecting member 200 such that the gear mounted on the first connecting member 100 and the gear mounted on the second connecting member 200
  • the first connecting member 100 is rotated at a constant speed with respect to the second connecting member 200, and the supporting member 300 is rotationally rotated with respect to the second connecting member 200.
  • the locking member 500 connects the first connecting member 100, the second connecting member 200, and the gear set 400, and fixes the first connecting member 100 and the supporting member 300 at a specific angle with respect to the second connecting member 200, respectively.
  • the two sides of the first connecting member 100 in the width direction respectively have the first shaft 110 and the third shaft 120 extending horizontally outward
  • the two sides of the second connecting member 200 in the width direction respectively have an outward horizontal extension.
  • the second shaft 210 and the fourth shaft 220, and the position of the first shaft 110 corresponds to the position of the second shaft 210
  • the third shaft 120 corresponds to the position of the fourth shaft 220.
  • the support member 300 has an approximately U-shaped configuration, and the U-shaped opening has a size substantially equal to the width of the first connecting member 100, and has a first hollow shaft 310 and a second hollow shaft 320 extending horizontally outward at both ends of the U-shape, respectively.
  • the first hollow shaft 310 is fitted on the first shaft 110 and is freely rotatable relative to the first shaft 110.
  • the second hollow shaft 320 is fitted on the third shaft 120 and is freely rotatable relative to the third shaft 120. Therefore, the support member 300 can be The two sides of the first connector 100 are free to rotate relative to the first connector 100 while contacting the lateral sides of the first connector 100.
  • the gear set 400 includes a first gear set 410 and a second gear set 420, and the first gear set 410 and the second gear set 420 are disposed on both sides in the width direction of the first link 100 and the second link 200, respectively.
  • the first gear set 410 is disposed at a position corresponding to the first shaft 110 and the second shaft 210
  • the second gear set 420 is disposed at a position corresponding to the third shaft 120 and the fourth shaft 220. Since the first gear set 410 and the second gear set 420 have the same structure, only the first gear set 410 will be described in detail below.
  • the first gear set 410 includes a first gear 411, a second gear 412, a third gear 413, a fourth gear 414, and a fifth gear 415.
  • the first gear 411 and the second gear 412 are fixedly connected from the side of the second connecting member 200 to the second shaft 210 from the inside to the outside, and the third gear 413 and the fourth gear 414 are from the side of the first connecting member 100
  • the first hollow shaft 310 is fixedly coupled to the support member 300 from the inside to the outside, and the third gear 413 and the first gear 411 are engageable with each other, and the fourth gear 414 and the second gear 412 are engageable with each other.
  • the fifth gear 415 is located outside of the fourth gear 414 and is fixedly coupled to the first shaft 110, whereby the third gear 413 and the fourth gear 414 can be axially positioned.
  • the fifth gear 415 and the second gear 412 can mesh with each other.
  • the first connecting member 100 moves, so that the fifth gear 415 fixedly coupled to the first shaft 110 of the first connecting member 100 is meshed with the second gear 412 so as to be movable by the first shaft 110.
  • the first hollow shaft 310 moves such that the third gear 413 and the fourth gear 414 mesh with the first gear 411 and the second gear 412, respectively.
  • the support mechanism for the keyboard and the tablet includes the first connector 100 and the third gear 413, the fourth gear 414, and the first shaft 110 on the first shaft 110 of the first connector 100 a fifth gear 415, and a second connecting member 200 and a first gear 411 and a second gear 412 located on the second shaft 220 of the second connecting member 200, therefore, the first connecting member 100 and the second connecting member 200 need to be connected Fixed to achieve engagement of the gears in the gear set 400 to effect rotation of the first connector 100 relative to the second connector 200.
  • the support mechanism for the keyboard and the tablet of the present embodiment is provided with a locking member 500 on the outer side of the gear set 400, and the locking member 500 connects the first connecting member 100 and the second connecting member 200, and makes the first connecting member 100 is fixed at a specific angle with respect to the second connector 200.
  • FIG. 3 is a view of a locking member for a support mechanism of a keyboard and a tablet connected to a first connector and a second connector, in accordance with an embodiment of the present invention
  • FIG. 4 is a keyboard and a keyboard according to an embodiment of the present invention.
  • the locking member 500 includes a first locking member 510 and a second locking member 520 (shown in FIG. 1), and the first locking member 510 and the second locking member 520 are respectively disposed at the first connecting member 100. And both sides of the second connecting member 200 in the width direction.
  • the first locking member 510 is disposed at a position corresponding to the first shaft 110 and the second shaft 210 and connects the first shaft 110 and the second shaft 210
  • the second locking member 520 is disposed at the third shaft 120 and the fourth shaft 220.
  • the third shaft 120 and the fourth shaft 220 are connected at the position. Since the first locking member 510 and the second locking member 520 have the same structure, only the first locking member 510 will be described in detail below.
  • the first locking member 510 includes a fixed housing 511, a locking cam 512, an elastic member 513, and a locking member 514.
  • the first shaft 110 and the second shaft 210 are respectively located at the top end and the bottom end of the inner portion of the fixed casing 511, so that the distance between the first shaft 110 and the second shaft 210 can satisfy the accurate meshing of the gears in the gear set 400, the bearing It is disposed inside the fixed case 511 and supported at the outer ends of the first shaft and the second shaft, respectively.
  • the locking cam 512 is located on one side of the fixed casing 511 and is capable of abutting against the fifth gear 415, and the elastic member 513 (for example, a spring piece) is located on the first shaft 110 on the other side of the fixed casing 511, and the locking member (for example, a lock nut)
  • the 514 is located outside the elastic member 513 and is capable of fixing the locking member 510 to the first shaft 110 and the elastic member 513 to have a preload force.
  • a positioning rib D is provided on the outer side of the fifth gear 415, and a plurality of positioning grooves are disposed on a side of the locking cam 512 near the fifth gear 415, and the plurality of positioning grooves are distributed on the locking cam 512.
  • the positioning ribs are engageable with each of the plurality of positioning grooves, and the positioning ribs D can be respectively engaged with each of the positioning grooves, thereby realizing the first connecting member 100 relative to the second connecting member 200. Fixed at a plurality of different predetermined angles.
  • the positioning groove is configured to enable the first connecting member 100 to be engaged with the positioning rib D at positions of 0°, 120°, and 300° with respect to the second connecting member 200, respectively. That is to say, the support mechanism for the keyboard and the tablet according to the present embodiment enables the fixing of the tablet at positions of 0°, 120°, and 300° (the fixing of the tablet at the position of 120° is generally convenient for the user to use.
  • the keyboard is simultaneously viewed from the screen of the tablet, and depending on the weight of the tablet, the elastic member 513 can be set with a different locking force in advance by the locking member 514.
  • the positioning rib D can be engaged in positioning when the tablet reaches a predetermined angular position. In the slot, the fixing is achieved. If it is necessary to change the tablet to another angular position, it is necessary to push the tablet to overcome the elastic force of the elastic member to move the positioning rib D out of the positioning groove, and then the positioning rib D moves along the surface of the cam as the fifth gear 415 rotates until reaching At another fixed angle, the positioning rib D is again engaged in the positioning groove.
  • FIG. 5A is a schematic view showing the first connecting member 100 and the second connecting member 200 in a closed state.
  • the first connecting member 100 and the supporting member 300 are both fastened to the second connecting member 200, that is, the first The angle between the connector 100 and the support member 300 relative to the second connector member 200 is 0°.
  • the positioning rib D is engaged with the positioning groove of the locking cam 512.
  • 5B and 5C respectively show the meshing state of the second gear 412 and the fifth gear 415 and the meshing state of the first gear 411 and the third gear 413 when the first link 100 and the second link 200 are closed. As shown in FIGS.
  • the second gear 412 and the fifth gear 415 remain engaged, and the first gear 411 and the third gear 413 remain engaged.
  • the first gear 411 and the third gear 413 are both local gears, that is, teeth are formed on a part of the circumference of the first gear 411 and the third gear 413, and the first gear 411 and the third gear 413 can only be fixed.
  • the angular range is engaged, and according to an exemplary embodiment, the first gear 411 and the third gear 413 are set to remain engaged in the range of 0° to 120°.
  • the positioning rib D When the tablet is rotated in the state of Figs. 5A to 5C, the positioning rib D is removed from the positioning groove against the elastic force of the elastic member, and then the positioning rib D moves along the cam surface.
  • the rotational speed of the third gear 413 In the range of 0° to 120° of the rotation of the first connecting member 100 with respect to the second connecting member 200, the rotational speed of the third gear 413 is It is set to 1.5 times the rotation speed of the fifth gear 415. Therefore, the rotational speed of the support member 300 fixedly coupled to the third gear 413 is 1.5 times the rotational speed of the first connecting member 100 fixedly coupled to the fifth gear 411, that is, when the first connecting member 100 is opposed to the second connecting member 200.
  • the support 300 When rotated to a position of 120°, the support 300 is rotated to 180° with respect to the second link 200 as shown in FIG. 6A. That is, when the first connector 100 is substantially at a position of 120° (ie, the tablet is at a position of 120°), the second connector 200 is substantially in the same plane as the support 300 (ie, the keyboard and the support) 300 is substantially in the same plane), at this time, the positioning rib D is engaged with the positioning groove of the locking cam 512. Therefore, while viewing the tablet and using the keyboard at a suitable angle to the user, the second connector 200 and the support member 300 can provide sufficient stability for the tablet to prevent the tablet from tipping due to the weight of the tablet and the keyboard. .
  • FIG. 6B shows the meshing state of the second gear 412 and the fifth gear 415 when the first link 100 is rotated to 120° with respect to the second link 200, as can be seen from the figure, the second connector 200 and the support The pieces 300 are generally on the same line.
  • FIG. 6C since the third gear 413 and the first gear 411 are disposed as partial gears, when the first connecting member 100 is rotated to 120°, the meshing of the third gear 413 and the first gear 411 is ended, as shown in FIG. As shown in 6D, the second gear 412 and the fourth gear 414 begin to mesh.
  • the positioning rib D is moved out of the positioning groove against the elastic force of the elastic member 513, and then the positioning rib D moves on the surface of the locking cam 512 until the first connection
  • the positioning rib D is again engaged into the positioning groove of the locking cam 512.
  • the fourth gear 414 is meshed with the second gear 412, and the fourth gear 414 is set to be the fifth The rotational speed of the gear 415 is the same.
  • the support 300 is rotated from the position of 120° to the position of 360° with respect to the second link 200. That is to say, at this time, the support member 300 coincides with the second connecting member 200. At this time, the front side of the keyboard faces downward, and the support member 300 is located at the bottom surface of the keyboard. As shown in Figure 7A.
  • the third gear 413 and the fourth gear 414 are each disposed as a local gear, the third gear 413 meshes with the first gear 411 in a range of 0° to 120°, and the third gear 413
  • the rotational speed is 1.5 times that of the fifth gear 415, and in the range of 120° to 300°
  • the fourth gear 414 meshes with the second gear 412, and the rotational speed of the fourth gear 414 is the same as the rotational speed of the fifth gear 415.
  • a change in the rotational speed of the support member 300 relative to the second connecting member 200 can be achieved, and the relative fixing of the support member 300 relative to the second connecting member 200 at positions of 180° and 360° can be achieved, thereby enabling stable support.
  • Fig. 7B shows the meshing state between the second gear 412 and the fifth gear 415 in this state.
  • Fig. 7C shows the meshing state between the second gear 412 and the fourth gear 414 in this state.
  • the exemplary embodiment shows the support and positioning of the support mechanism for the keyboard and tablet at 0°, 120°, and 300°, but the present invention is not limited thereto, and the positioning groove of the locking cam according to the side of the lock member
  • the position of the support mechanism for the keyboard and tablet can be positioned at any angle.
  • the number of positioning grooves of the locking cam can be changed as needed and the distribution of the positioning grooves in the circumferential direction of the locking cam can be adjusted to achieve more different angles of support and positioning.
  • the present invention can realize positioning support at a specified angle, and can prevent the tablet from tipping over.
  • the support mechanism for the keyboard and the tablet according to the embodiment of the present invention has high precision and reliable structural strength because the precision of the gear set is used to control the angle. Since the other parts can be automatically moved to the corresponding position when the tablet is opened, the linkage between the components can be realized, which makes the operation simpler.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Casings For Electric Apparatus (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

提供了一种用于键盘和平板电脑的支撑机构，支撑机构包括：第一连接件（100），平板电脑安装在第一连接件上；第二连接件（200），键盘安装在第二连接件上；支撑件（300），可旋转地连接到第一连接件并能够支撑第一连接件；齿轮组（400），安装在第一连接件和第二连接件对应的位置处，使第一连接件相对于第二连接件匀速转动，支撑件相对于第二连接件变速转动；锁定件（500），将第一连接件、第二连接件和齿轮组相连，并使第一连接件和支撑件分别相对于第二连接件在特定角度固定。支撑机构能够实现指定角度的定位支撑，可防止平板电脑倾翻，并且精准度高，结构强度可靠，操作简单。

Description

用于键盘和平板电脑的支撑机构 技术领域
本发明涉及一种支撑机构，具体地讲，涉及一种用于键盘和平板电脑的支撑机构。
背景技术
随着平板电脑应用的普及，用户需要在平板电脑在上加装键盘以扩充输入功能。但用户在使用具有键盘输入功能的平板电脑时，一方面需要平板电脑得到有效支撑，另一方面需要将键盘与平板电脑有效连接，并且期望平板电脑能够根据不同用户的需要而调节角度。由于平板电脑比键盘重，在平板电脑相对于键盘的旋转超过一定角度时，平板电脑容易倾翻。
发明内容
本发明的目的在于提供一种有效支撑平板电脑的机构，即，一种能够承受一定的角度方向的力的支撑机构。
根据本实用新型的一方面，提供一种用于键盘和平板电脑的支撑机构，所述支撑机构包括：
第一连接件，用于安装平板电脑；
第二连接件，用于安装键盘；
支撑件，可旋转地连接到所述第一连接件并能够支撑所述第一连接件；齿轮组，安装在所述第一连接件与所述第二连接件对应的位置处，使所述第一连接件相对于所述第二连接件匀速转动，且所述支撑件可相对于所述第二连接件变速转动；
锁定件，将所述第一连接件、所述第二连接件和所述齿轮组相连，并使所述第一连接件和所述支撑件分别相对于所述第二连接件在至少一特定角度固定。 进一步地，第一连接件的侧部可具有向外延伸的第一轴，第二连接件的侧部具有向外延伸的第二轴，并且第二轴和第一轴的位置相对应，所述支撑件安装在第一轴上，所述齿轮组安装在第一轴与第二轴对应的位置处。
进一步地，所述齿轮组可包括第一齿轮、第二齿轮、第三齿轮、第四齿轮和第五齿轮，其中，第一齿轮和第二齿轮依次固定连接到第二轴，第三齿轮和第四齿轮依次固定连接到所述支撑件，使得第三齿轮与第一齿轮啮合，第四齿轮与第二齿轮啮合，第五齿轮位于第四齿轮的外侧、固定连接到第一轴，并与第二齿轮啮合。
进一步地，所述锁定件可包括：固定壳，将第一轴和第二轴连接并使齿轮组轴向定位；锁定凸轮，位于所述固定壳的一侧并与第五齿轮邻近；弹性构件，位于所述固定壳的另一侧；锁紧构件，位于所述弹性构件的外侧并能够使所述弹性构件具有预紧力。
进一步地，第五齿轮的外侧可具有定位筋，所述锁定凸轮具有多个定位槽，所述多个定位槽分布在锁定凸轮的周向上，所述定位筋与所述多个定位槽中的每个能够分别卡合，以使第一连接件相对于第二连接件在不同的角度固定。
进一步地，第一连接件可相对于第二连接件在0°至300°之间旋转，并且第二齿轮和第五齿轮保持啮合。
进一步地，第三齿轮是局部齿轮，并且在第一连接件相对于第二连接件在0°至120°之间旋转的过程中，第一齿轮可与第三齿轮啮合，当第一连接件相对于第二连接件在0°时，第一连接件与所述支撑件重合在0°，当第一连接件相对于第二连接件位于120°的位置时，所述支撑件相对于第二连接件位于180°的位置。
进一步地，第四齿轮是局部齿轮，在第一连接件相对于第二连接件在120°至300°之间旋转的过程中，第四齿轮可与第二齿轮啮合，当第一连接件相对于第二连接件位于300°的位置时，所述支撑件相对于第二连接件位于360°的位置。
进一步地，在第一连接件的另一侧部可设置有向外延伸的第三轴，第二连接 件的另一侧部设置有向外延伸的第四轴，并且第三轴和第四轴的位置相对应。进一步地，在第三轴和第四轴对应的位置处可均设置有所述支撑件、所述齿轮组和所述锁定件。
根据本发明的实施例能够实现指定角度的定位支撑，可防止平板电脑倾翻。另外，因为采用精密度较高的齿轮组控制角度，并且精准度高，结构强度可靠。由于打开平板电脑时可带动其它零件自动转到对应的位置，因此可实现各部件之间联动，使得操作更加简单。
附图说明
图1是根据本发明的实施例的用于键盘和平板电脑的支撑机构的分解透视图；
图2是根据本发明的实施例的用于键盘和平板电脑的支撑机构的角度控制齿轮组的立体图；
图3是根据本发明的实施例的用于键盘和平板电脑的支撑机构的锁定件与第一连接件和第二连接件连接的视图；
图4是根据本发明的实施例的用于键盘和平板电脑的支撑机构的锁定件的示意图；
图5A是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连接件和第二连接件处于关合状态的示意图；
图5B是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连接件和第二连接件关合时，第二齿轮和第五齿轮的啮合状态图；
图5C是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连接件和第二连接件关合时，第一齿轮和第三齿轮的啮合状态图；
图6A是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连接件相对于第二连接件处于120°位置的状态图；
图6B是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连 接件相对于第二连接件处于120°位置时，第二齿轮和第五齿轮的啮合状态图；
图6C是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连接件相对于第二连接件处于120°位置时，第一齿轮和第三齿轮的啮合状态图；
图6D是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连接件相对于第二连接件处于120°位置时，第二齿轮和第四齿轮的啮合状态图；
图7A是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连接件相对于第二连接件处于300°位置的状态图，其中，键盘的正面朝下；
图7B是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连接件相对于第二连接件处于300°位置时，第二齿轮和第五齿轮的啮合状态图；
图7C是根据本发明的实施例的用于键盘和平板电脑的支撑机构的第一连接件相对于第二连接件处于300°位置时，第二齿轮和第四齿轮的啮合状态图。
具体实施方式
为进一步阐述本发明为实现目的所采取的技术手段，以下结合附图及实施例，对依据本发明提出的用于键盘和平板电脑的支撑机构的具体实施方式进行详细描述。
图1为根据本发明的实施例的用于键盘和平板电脑的支撑机构的分解透视图，图2是根据本发明的实施例的用于键盘和平板电脑的支撑机构的角度控制齿轮组的立体图。
参照图1和图2，根据本发明的用于键盘和平板电脑的支撑机构包括第一连接件100、第二连接件200、支撑件300、齿轮组400和锁定件500。其中，第一连接件100的下部具有向上开口的槽，平板电脑能够安装并支撑在所述槽中。第二连接件200具有平坦的表面，使得键盘可放置在所述表面上。支撑件300可旋转地连接到第一连接件100并能够支撑第一连接件100，使得第一连接件100能够以一定角度支撑平板电脑，从而可防止平板电脑倾翻。齿轮组400安装在第一连接件100和第二连接件200对应的位置处(也就是说，齿轮组400的一部分安装在第一连接件100上，齿轮组400的第二部分安装在第二连接件200，使得安装在第一连接件100上的齿轮和安装在第二连接件200上的齿轮 可啮合)，使第一连接件100相对于第二连接件200匀速转动，并且支撑件300相对于第二连接件200变速转动。锁定件500将第一连接件100、第二连接件200和齿轮组400连接，并使第一连接件100和支撑件300分别相对于第二连接件200在特定角度固定。
具体地讲，第一连接件100的宽度方向的两侧分别具有向外水平延伸的第一轴110和第三轴120，并且第二连接件200的宽度方向的两侧分别具有向外水平延伸的第二轴210和第四轴220，并且第一轴110的位置与第二轴210的位置相对应，第三轴120与第四轴220的位置相对应。支撑件300具有近似U型结构，U型的开口的尺寸大致等于第一连接件100的宽度，在U型的两端分别具有向外水平延伸的第一空心轴310和第二空心轴320。第一空心轴310套装在第一轴110上并相对于第一轴110自由转动，第二空心轴320套装在第三轴120上并相对于第三轴120自由转动，因此支撑件300可在接触第一连接件100的横向的两侧的同时相对于第一连接件100自由转动。
齿轮组400包括第一齿轮组410和第二齿轮组420，并且第一齿轮组410和第二齿轮组420分别设置在第一连接件100和第二连接件200的宽度方向的两侧。第一齿轮组410设置在第一轴110和第二轴210对应的位置处，第二齿轮组420设置在第三轴120和第四轴220对应的位置处。由于第一齿轮组410和第二齿轮组420具有相同的结构，因此，下面仅将详细描述第一齿轮组410。
第一齿轮组410包括第一齿轮411、第二齿轮412、第三齿轮413、第四齿轮414和第五齿轮415。其中，第一齿轮411和第二齿轮412从第二连接件200的侧部由内向外依次固定连接到第二轴210，第三齿轮413和第四齿轮414从第一连接件100的侧部由内向外依次固定连接到支撑件300的第一空心轴310，并且第三齿轮413与第一齿轮411可彼此啮合，第四齿轮414和第二齿轮412可彼此啮合。第五齿轮415位于第四齿轮414的外侧并固定连接到第一轴110，由此可使第三齿轮413和第四齿轮414轴向定位。第五齿轮415与第二齿轮412可彼此啮合。在打开平板电脑的过程中，第一连接件100运动，因此与第一连接件100的第一轴110固定连接的第五齿轮415与第二齿轮412啮合转动，从而可通过第一轴110带动第一空心轴310运动，使得第三齿轮413和第四齿轮414分别与第一齿轮411和第二齿轮412啮合转动。
此外，由于根据本发明的实施例的用于键盘和平板电脑的支撑机构包括第一连接件100和位于第一连接件100的第一轴110上的第三齿轮413、第四齿轮414和第五齿轮415，以及第二连接件200和位于第二连接件200的第二轴220上的第一齿轮411和第二齿轮412，因此，需要将第一连接件100和第二连接件200连接固定，以实现齿轮组400中各齿轮的啮合，从而实现第一连接件100相对于第二连接件200的转动。因此，本实施例的用于键盘和平板电脑的支撑机构在齿轮组400的外侧设置有锁定件500，锁定件500将第一连接件100和第二连接件200连接，并使第一连接件100相对于第二连接件200在特定角度固定。
图3是根据本发明的实施例的用于键盘和平板电脑的支撑机构的锁定件与第一连接件和第二连接件连接的视图；图4是根据本发明的实施例的用于键盘和平板电脑的支撑机构的锁定件的示意图。
参照图3和图4，锁定件500包括第一锁定件510和第二锁定件520(如图1所示)，并且第一锁定件510和第二锁定件520分别设置在第一连接件100和第二连接件200的宽度方向的两侧。第一锁定件510设置在第一轴110和第二轴210对应的位置处并将第一轴110和第二轴210连接，第二锁定件520设置在第三轴120和第四轴220对应的位置处并将第三轴120和第四轴220连接。由于第一锁定件510和第二锁定件520具有相同的结构，因此，下面仅将详细描述第一锁定件510。
第一锁定件510包括固定壳511、锁定凸轮512、弹性构件513和锁紧构件514。其中，第一轴110和第二轴210分别位于固定壳511内部的顶端和底端，使得第一轴110和第二轴210之间的距离能够满足齿轮组400中的齿轮的准确啮合，轴承设置在固定壳511的内部，并分别支撑在第一轴和第二轴的外端。锁定凸轮512位于固定壳511的一侧并能够抵住第五齿轮415，弹性构件513(例如弹片)位于固定壳511的另一侧的第一轴110上，锁紧构件(例如锁紧螺母)514位于弹性构件513的外侧并能够将锁定件510固定在第一轴110上并使弹性构件513具有预紧力。
优选地，在第五齿轮415的外侧具有定位筋D，在锁定凸轮512的靠近第五齿轮415的一侧设置有多个定位槽，所述多个定位槽分布在锁定凸轮512的 周向上，所述定位筋与所述多个定位槽中的每个能够卡合，定位筋D能够与分别与每个定位槽卡合，从而实现第一连接件100相对于第二连接件200在多个不同的预定角度的固定。根据本公开的实施例，所述定位槽被设置为能够使第一连接件100分别相对于第二连接件200在0°、120°和300°的位置与定位筋D卡合。也就是说，根据本实施例的用于键盘和平板电脑的支撑机构能够实现平板电脑在0°、120°和300°的位置的固定(平板电脑在120°的位置的固定通常便于用户在使用键盘的同时观看平板电脑的屏幕)，并且根据平板电脑的重量不同，可预先通过锁紧构件514对弹性构件513设定不同的锁紧力。也就是说，在转动平板电脑时需要克服由弹性构件513的弹力施加的第五齿轮415与锁定凸轮512之间的摩擦，而在平板电脑到达预定角度位置时，定位筋D能够卡合在定位槽中，从而实现固定。如果需要将平板电脑变换至另一角度定位，需要推动平板电脑，克服弹性构件的弹力使定位筋D移出定位槽，然后定位筋D随着第五齿轮415的转动而沿凸轮表面运动，直到到达另一固定角度，定位筋D再次卡合到定位槽中为止。
下面将参照图5A至图7C，详细描述根据本公开的实施例的用于键盘和平板电脑的支撑机构的操作以及锁定在0°、120°和300°的位置的状态。
图5A是第一连接件100和第二连接件200处于关合状态的示意图，在该状态下，第一连接件100和支撑件300均扣合在第二连接件200上，即，第一连接件100和支撑件300相对于第二连接件200之间的夹角均为0°。此时，定位筋D与锁定凸轮512的定位槽卡合。图5B和图5C分别示出在第一连接件100和第二连接件200关合时，第二齿轮412和第五齿轮415的啮合状态以及第一齿轮411和第三齿轮413的啮合状态。如图5B和图5C所示，在平板电脑与键盘关合时，第二齿轮412和第五齿轮415保持啮合状态，第一齿轮411和第三齿轮413保持啮合状态。另外，第一齿轮411和第三齿轮413均是局部齿轮，即，在第一齿轮411和第三齿轮413的圆周的一部分上形成有齿，第一齿轮411和第三齿轮413只能在一定的角度范围内啮合，根据示例性实施例，第一齿轮411和第三齿轮413被设置为在0°至120°的范围内保持啮合。
当在图5A至图5C的状态下转动平板电脑时，使定位筋D克服弹性构件的弹力而从定位槽中移出，然后定位筋D沿凸轮表面运动。在第一连接件100相对于第二连接件200转动的0°至120°的范围内，第三齿轮413的转速被 设置为第五齿轮415的转速的1.5倍。因此，与第三齿轮413固定连接的支撑件300的转速是与第五齿轮411固定连接的第一连接件100的转速的1.5倍，即，当第一连接件100相对于第二连接件200旋转至120°的位置时，支撑件300相对于第二连接件200旋转至180°，如图6A所示。也就是说，在第一连接件100大致处于120°的位置时(即，平板电脑处于120°的位置)，第二连接件200与支撑件300大致处于同一平面内(即，键盘与支撑件300大致处于同一平面内)，此时，定位筋D与锁定凸轮512的定位槽卡合。因此，在满足用户合适的角度观看平板电脑并使用键盘的同时，第二连接件200和支撑件300能够为平板电脑提供足够稳定的支撑，防止由于平板电脑和键盘的重量而使平板电脑倾翻。
图6B示出了第一连接件100相对于第二连接件200转动至120°时，第二齿轮412和第五齿轮415的啮合状态，从图中可以看出，第二连接件200和支撑件300大致处于同一直线上。如图6C所示，由于第三齿轮413和第一齿轮411被设置为是局部齿轮，在第一连接件100转动至120°时，第三齿轮413和第一齿轮411的啮合结束，如图6D所示，第二齿轮412与第四齿轮414开始啮合。
如图7A至图7C所示，当继续转动第一连接件100时，克服弹性构件513的弹力，使定位筋D移出定位槽，然后定位筋D在锁定凸轮512的表面运动，直到第一连接件100相对于第二连接件200转动到300°时为止，此时定位筋D再次卡合到锁定凸轮512的定位槽中。具体地，在第一连接件100相对于第二连接件200在120°至300°之间旋转的过程中，第四齿轮414与第二齿轮412啮合，第四齿轮414被设置为与第五齿轮415的转速相同。因此，当第一连接件100相对于第二连接件200从120°的位置转动到300°的位置时，支撑件300相对于第二连接件200从120°的位置转动到360°的位置。也就是说，此时支撑件300与第二连接件200重合，此时，键盘的正面朝下，支撑件300位于键盘的底表面。如图7A所示。根据示例性的实施例，第三齿轮413和第四齿轮414均被设置为是局部齿轮，在0°至120°的范围内，第三齿轮413与第一齿轮411啮合，并且第三齿轮413的转速是第五齿轮415的1.5倍，而在120°至300°的范围内，第四齿轮414与第二齿轮412啮合，并且第四齿轮414的转速与第五齿轮415的转速相同。由第三齿轮413切换到第四齿轮 414，可实现支撑件300相对于第二连接件200的转速的变化，实现支撑件300相对于第二连接件200在180°和360°的位置的相对固定，从而能够实现稳定支撑。图7B示出了在此状态下，第二齿轮412和第五齿轮415之间的啮合状态。图7C示出了在此状态下，第二齿轮412和第四齿轮414之间的啮合状态。
示例性的实施例示出了在0°、120°和300°时的用于键盘和平板电脑的支撑机构的支撑和定位，但是本发明不限于此，根据锁定件侧部的锁定凸轮的定位槽的位置不同，所述的用于键盘和平板电脑的支撑机构能够在任意角度定位。例如，可根据需要改变锁定凸轮的定位槽的数量并调整定位槽在锁定凸轮周向的分布，来实现更多不同角度的支撑和定位。
本发明相对于现有技术来讲能够实现指定角度的定位支撑，可防止平板电脑倾翻。另外，因为采用精密度较高的齿轮组控制角度，根据本发明的实施例的用于键盘和平板电脑的支撑机构的精准度高，结构强度可靠。由于打开平板电脑时可带动其它零件自动转到对应的位置，因此可实现各部件之间联动，使得操作更加简单。
以上所述，仅为本发明的优选实施方式，但本发明的保护范围并不局限于此，本领域技术人员应该理解，在不脱离由权利要求及其等同物限定其范围的本发明的原理和精神的情况下，可以对这些实施例进行修改和完善，这些修改和完善也应在本实用新型的保护范围内。

Claims (10)

  1. 一种用于键盘和平板电脑的连接支撑机构，其中，所述支撑机构包括：
    第一连接件，用于安装平板电脑；
    第二连接件，用于安装键盘；支撑件，可旋转地连接到所述第一连接件并能够支撑所述第一连接件；
    齿轮组，安装在所述第一连接件与所述第二连接件对应的位置处，使所述第一连接件相对于所述第二连接件匀速转动，且所述支撑件可相对于所述第二连接件变速转动；
    锁定件，将所述第一连接件、所述第二连接件和所述齿轮组相连，并使所述第一连接件和所述支撑件分别相对于所述第二连接件在至少一特定角度固定。
  2. 根据权利要求1所述的支撑机构，其中，所述第一连接件的侧部具有向外延伸的第一轴，所述第二连接件的侧部具有向外延伸的第二轴，并且所述第二轴和所述第一轴的位置相对应，所述支撑件安装在所述第一轴上，所述齿轮组安装在所述第一轴与所述第二轴对应的位置处。
  3. 根据权利要求2所述的支撑机构，其中，所述齿轮组包括第一齿轮、第二齿轮、第三齿轮、第四齿轮和第五齿轮，其中，所述第一齿轮和所述第二齿轮依次固定连接到所述第二轴，所述第三齿轮和所述第四齿轮依次固定连接到所述支撑件，使得所述第三齿轮与所述第一齿轮啮合，所述第四齿轮与所述第二齿轮啮合，所述第五齿轮位于所述第四齿轮的外侧且固定连接到所述第一轴，并与所述第二齿轮啮合。
  4. 根据权利要求3所述的支撑机构，其中，所述锁定件包括：固定壳，将所述第一轴和所述第二轴连接并使所述齿轮组轴向定位；锁定凸轮，位于所述固定壳的一侧并与所述第五齿轮邻近；弹性构件，位于所述固定壳的另一侧；锁紧构件，位于所述弹性构件的外侧并能够使所述弹性构件具有预紧力。
  5. 根据权利要求4所述的支撑机构，其中，所述第五齿轮的外侧具有定位筋，所述锁定凸轮具有多个定位槽，所述多个定位槽分布在所述锁定凸轮的周向上，所述定位筋与所述多个定位槽中的每个能够分别卡合，以使所述第一连接件相对于所述第二连接件在不同的角度固定。
  6. 根据权利要求3所述的支撑机构，其中，所述第一连接件能够相对于所述第二连接件在0°至300°之间旋转，并且所述第二齿轮和所述第五齿轮保持啮合。
  7. 根据权利要求6所述的支撑机构，其中，所述第三齿轮是局部齿轮，并且在所述第一连接件相对于所述第二连接件在0°至120°之间旋转的过程中，所述第一齿轮与所述第三齿轮啮合，当所述第一连接件相对于所述第二连接件在0°时，所述第一连接件与所述支撑件重合在0°，当所述第一连接件相对于所述第二连接件位于120°的位置时，所述支撑件相对于所述第二连接件位于180°的位置。
  8. 根据权利要求6所述的支撑机构，其中，所述第四齿轮是局部齿轮，在所述第一连接件相对于所述第二连接件在120°至300°之间旋转的过程中，所述第四齿轮与所述第二齿轮啮合，当所述第一连接件相对于所述第二连接件位于300°的位置时，所述支撑件相对于所述第二连接件位于360°的位置。
  9. 根据权利要求2所述的支撑机构，其中，在所述第一连接件的另一侧部设置有向外延伸的第三轴，所述第二连接件的另一侧部设置有向外延伸的所述第四轴，并且所述第三轴和所述第四轴的位置相对应。
  10. 根据权利要求9所述的支撑机构，其中，在所述第三轴和所述第四轴对应的位置处均设置有所述支撑件、所述齿轮组和所述锁定件。
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