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WO2024255553A1 - 一种稳固的平衡架组件 - Google Patents

一种稳固的平衡架组件 Download PDF

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Publication number
WO2024255553A1
WO2024255553A1 PCT/CN2024/094729 CN2024094729W WO2024255553A1 WO 2024255553 A1 WO2024255553 A1 WO 2024255553A1 CN 2024094729 W CN2024094729 W CN 2024094729W WO 2024255553 A1 WO2024255553 A1 WO 2024255553A1
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WO
WIPO (PCT)
Prior art keywords
balancing
bar
balance
base
rod
Prior art date
Application number
PCT/CN2024/094729
Other languages
English (en)
French (fr)
Inventor
吕攀豪
吴福喜
Original Assignee
东莞市凯华电子有限公司
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 东莞市凯华电子有限公司 filed Critical 东莞市凯华电子有限公司
Publication of WO2024255553A1 publication Critical patent/WO2024255553A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback

Definitions

  • the utility model relates to the technical field of key switches, in particular to a stable balancing frame component.
  • the existing balance frame structure in order to improve the pressing balance, a balance frame structure is added inside the key switch, and the conduction and disconnection performance of the key switch is realized by the downward swing and upward swing of the balance frame structure.
  • the existing balance frame structure usually has two balance bars, and the two balance bars are hinged at the ends, which is conducive to the synchronous swing of the two balance bars, thereby realizing the balanced swing of the balance frame structure. Since the balance frame structure adopts a method of hinged connection between two balance frames, during use or assembly, when the upward or downward swing range of the balance frame structure is too large, the balance frame structure is prone to fall off and lose balance. The stability of the balance frame structure is poor, which affects the user experience and is not easy to assemble.
  • the purpose of the present utility model is to provide a stable balancing frame assembly, which can limit the upper swing height of the first balancing pole and the second balancing pole, ensure the stability of the balancing frame assembly structure, facilitate the smooth swing of the balancing frame assembly, improve the user experience, and facilitate assembly.
  • a stable balance frame assembly including a base, a first balance bar movably connected to the base, a second balance bar movably connected to the base, and at least one elastic member connected between the first balance bar and the second balance bar.
  • the balance frame assembly also includes at least one upper swing limit structure for limiting the upper swing height of the first balance bar and the second balance bar.
  • the upper swing limit structure includes an upper swing limit rod arranged between the first balance rod and the second balance rod, one end of the upper swing limit rod abuts against the upper end surface of the first balance rod, and the other end of the upper swing limit rod abuts against the upper end surface of the second balance rod.
  • the upper swing limiting structure also includes a longitudinal support plate connected to the upper swing limiting rod, and the longitudinal support plate extends downward and is connected to the base plate to form an integral structure.
  • the upper swing limiting structure includes two structures respectively formed on two side edges of the base.
  • a first supporting protrusion is respectively formed on both sides of the first balance pole, and a first supporting groove for the first supporting protrusion to be movably inserted is respectively formed on both side edges of the base, and the first supporting protrusion is movably inserted into the first supporting groove to form a supporting point of the first balance pole on the base;
  • a second supporting protrusion is respectively formed on both sides of the second balance pole, and a second supporting groove for the second supporting protrusion to be movably inserted is respectively formed on both side edges of the base, and the second supporting protrusion is movably inserted into the second supporting groove to form a supporting point of the second balance pole on the base;
  • a first inner convex limiting portion is respectively formed at the opening of the first supporting groove and the opening of the second supporting groove.
  • the first balance bar has two first limit abutment ends, and the two first limit abutment ends are respectively abutted on at least one of the base and the PCB board;
  • the second balance bar has two second limit abutment ends, and the two second limit abutment ends are respectively abutted on at least one of the base and the PCB board.
  • a limiting abutting block for abutting the first limiting abutting end and/or the second limiting abutting end is respectively arranged on the two inner sides of the base.
  • the first balance bar includes a first transverse balance bar, a first left support bar connected to one end of the first transverse balance bar, and a first right support bar connected to the other end of the first transverse balance bar, wherein the first support protrusions are respectively formed on the outer sides of the first left support bar and the first right support bar;
  • the second balance bar includes a second transverse balance bar, a second left support bar connected to one end of the second transverse balance bar, and a second right support bar connected to the other end of the second transverse balance bar, wherein the second support protrusions are respectively formed on the outer sides of the second left support bar and the second right support bar.
  • a first connecting block is formed on the inner side of the end of the first left support bar, and a second clamping jaw is arranged at the end of the second left support bar, and the second clamping jaw has a second clamping jaw opening for the first connecting block to be movably inserted into;
  • a second connecting block is formed on the inner side of the end of the second right support bar, and a first clamping jaw is arranged at the end of the first right support bar, and the first clamping jaw has a first clamping jaw opening for the second connecting block to be movably inserted into; at least one second inward convex limiting portion is respectively formed at the opening of the first clamping jaw opening and the opening of the second clamping jaw opening.
  • a connecting hole is respectively provided on the first transverse balance bar and the second transverse balance bar, one end of the elastic member is connected to the connecting hole of the first transverse balance bar, and the other end is connected to the connecting hole of the second transverse balance bar.
  • the balancing frame assembly is provided with an upper swing limit structure to limit the upper swing height of the first balancing pole and the second balancing pole to prevent the elastic member 4 from being over-compressed and easily damaged or the first balancing pole 2 and the second balancing pole 3 from falling off, thereby ensuring the stability of the balancing frame assembly structure, facilitating the smooth swing of the balancing frame assembly, improving user experience, and facilitating assembly.
  • Figure 1 is a schematic diagram of the overall structure of the utility model
  • Figure 2 is an exploded view of the utility model
  • Figure 3 is a schematic structural diagram of the first balance bar in the utility model
  • Figure 4 is a schematic diagram of the structure of the second balance bar in the utility model
  • Figure 5 is a schematic diagram of the structure of the base in the utility model
  • Figure 6 is a schematic diagram of the structure in which the base and the first balance bar of the utility model are arranged on a PCB board;
  • Figure 7 is a cross-sectional view of the balance frame assembly in the utility model when it is in an unpressed free state
  • FIG8 is a cross-sectional view of the balance frame assembly of the present invention in a pressed state.
  • the embodiment of the utility model provides a stable balance frame assembly, including a base 1, a first balance bar 2 movably connected to the base 1, a second balance bar 3 movably connected to the base, and at least one elastic member 4 connected between the first balance bar 2 and the second balance bar 3.
  • the first balance bar 2 and the second balance bar 3 are elastically pulled by the elastic member 4 to swing up and down with the base 1 as the support point.
  • the movable connection point between the first balance bar 2 and the base 1 is the support point of the first balance bar 2 on the base 1
  • the movable connection point between the second balance bar 3 and the base 1 is the support point of the second balance bar 3 on the base 1.
  • the balance frame assembly also includes at least one upper swing limit structure 5 for limiting the upper swing height of the first balance bar 2 and the second balance bar 3. Avoid the phenomenon that the elastic member 4 is easily damaged due to excessive compression or the first balance bar 2 and the second balance bar 3 fall off, ensure the stability of the balance frame assembly structure, facilitate the stable swing of the balance frame assembly, improve user experience, and facilitate assembly.
  • the first balance bar 2 and the second balance bar 3 are pressed downward, the first balance bar 2 and the second balance bar 3 are first moved downward due to the downward force and the elastic pulling combined action of the elastic member 4.
  • the support point of the first balance bar 2 on the base 1 and the support point of the second balance bar 3 on the base 1 respectively have an upward force, that is, an upward arching force, so that the parts of the first balance bar 2 and the second balance bar 3 away from the support point are subjected to a natural downward force and move downward, that is, the upward arching force causes the first balance bar 2 and the second balance bar 3 to swing downward, thereby achieving the balanced downward swing of the first balance bar 2 and the second balance bar 3, as shown in Figures 7 and 8, from the unpressed state to the pressed state.
  • the upward swing limiting structure 5 will not limit the downward movement of the first balance bar 2 and the second balance bar 3.
  • a sense of segmentation that is, a sense of feedback
  • the elastic member 4 is deformed due to being stretched.
  • the first balance pole 2 and the second balance pole 3 are moved up and reset under the elastic restoring force of the elastic member 4, that is, the first balance pole 2 and the second balance pole 3 are pulled up by the elastic restoring force, as shown in FIG7 .
  • the first balance pole 2 and the second balance pole 3 move up to the initial position and stop swinging, thereby preventing the first balance pole 2 and the second balance pole 3 from continuing to move up due to inertia, causing the elastic member 4 to be over-compressed and easily damaged, or the first balance pole 2 and the second balance pole 3 to fall off and lose balance, thereby ensuring the stability of the balance frame assembly structure, facilitating the smooth swing of the balance frame assembly, and improving user experience.
  • a key cap 7 is usually installed on the balance frame assembly, as shown in Figures 7 and 8. Due to the balanced swinging effect of the first balance bar 2 and the second balance bar 3, the key cap 7 can be smoothly moved down regardless of any position on the key cap 7. When assembling the key cap 7 of the balance frame assembly of this embodiment, it is sometimes necessary to remove the key cap 7. During the whole process of removing the key cap 7, an upward pulling force will be generated on the first balance bar 2 and the second balance bar 3.
  • the first balance bar 2 and the second balance bar 3 cannot move upward when subjected to the upward pulling force, thereby avoiding the elastic member 4 being over-compressed and easily damaged or the first balance bar 2 and the second balance bar 3 falling off, ensuring the stability of the balance frame assembly structure and facilitating assembly.
  • the balancing frame assembly of the present embodiment due to the provision of the upper swing limit structure 5, limits the upward movement positions of the first balancing pole 2 and the second balancing pole 3, and the elastic member 4 will not be over-compressed and easily damaged, nor will the first balancing pole 2 and the second balancing pole 3 fall off due to excessive upper swing range.
  • the stability of the balancing frame assembly structure is ensured, the balancing frame assembly is conducive to smooth swinging, the user experience is improved, and the assembly is easy.
  • the upward swing limiting structure 5 includes an upward swing limiting rod 51 disposed between the first balance bar 2 and the second balance bar 3.
  • One end of the upward swing limiting rod 51 abuts against the upper end surface of the first balance bar 2, and the other end of the upward swing limiting rod 51 abuts against the upper end surface of the second balance bar 3. That is, the upward swing limiting structure 5 blocks the upward movement of the first balance bar 2 and the second balance bar 3 through the upward swing limiting rod 51, thereby limiting the upward swing height of the first balance bar 2 and the second balance bar 3.
  • the upper swing limiting structure 5 further includes a longitudinal support plate 52 connected to the upper swing limiting rod 51, and the longitudinal support plate 52 extends downward and is connected to the base plate 1 to form an integral structure. That is, the upper swing limiting structure 5 is fixedly connected to the base 1, and can effectively block the upward movement of the first balance bar 2 and the second balance bar 3.
  • the upper swing limiting structure 5 includes two structures formed on both sides of the base 1. Both sides of the first balance bar 2 and the second balance bar 3 can be limited at the same time, which is beneficial to the balance of the balance frame assembly when it moves upward and resets.
  • a first supporting protrusion 21 is respectively formed on both sides of the first balance pole 2, and a first supporting groove 11 for the first supporting protrusion 21 to be movably inserted is respectively formed on both sides of the base 1, and the first supporting protrusion 21 is movably inserted into the first supporting groove 11 to form a supporting point of the first balance pole 2 on the base 1, and the first balance pole 2 swings up and down at the supporting point; as for the specific connection mode between the second balance pole 3 and the base 1, as shown in FIG. 1 , FIG. 4 and FIG.
  • a second supporting protrusion 31 is respectively formed on both sides of the second balance pole 3, and a second supporting groove 12 for the second supporting protrusion 31 to be movably inserted into is respectively formed on both sides of the base 1, and the second supporting protrusion 31 is movably inserted into the second supporting groove 12 to form a supporting point of the second balance pole 3 on the base 1, and the second balance pole 3 swings up and down at the supporting point.
  • the first supporting slot 11 and the second supporting slot 12 are formed on the longitudinal supporting plate 52 of the swing limiting structure 5 to ensure the swing stability of the balance frame assembly. Meanwhile, the entire balance frame assembly has a compact structure and good stability.
  • a first inner convex limiting portion (111, 121) is formed at the opening of the first support slot 11 and the opening of the second support slot 12 respectively.
  • the first inner convex limiting portion limits the first support protrusion 21 and the second support protrusion 31, so that the first support protrusion 21 and the second support protrusion 31 will not fall out or shift when they move in the first support slot 11 and the second support slot 12 respectively.
  • the first balance bar 2 and the second balance bar 3 can always swing at the supporting point on the base 1, and the stability of the up and down swinging of the first balance bar 2 and the second balance bar 3 is improved, and a feedback sense can be obtained, thereby improving the pressing feel.
  • the first balance bar 2 has two first limit abutting ends 22, and the two first limit abutting ends 22 are respectively abutted on at least one of the base 1 and the PCB board 6.
  • the two first limit abutting ends 22 of the first balance bar 2 can both abut on the base 1, or both abut on the PCB board 6, or one of the two first limit abutting ends 22 abuts on the base 1, and the other abuts on the PCB board 6, as shown in FIG6.
  • the second balance bar 3 has two second limit abutting ends 32, and the two second limit abutting ends 32 are respectively abutted on at least one of the base 1 and the PCB board 6.
  • the two second limit abutting ends 32 of the second balance bar 3 can both abut on the base 1, or both abut on the PCB board 6, or one of the two second limit abutting ends 32 abuts on the base 1 and the other abuts on the PCB board 6.
  • a limiting abutting block 13 for abutting the first limiting abutting end 22 and/or the second limiting abutting end 32 is respectively provided on the two inner sides of the base 1 .
  • the first balance bar 2 includes a first transverse balance bar 23, a first left support bar 24 connected to one end of the first transverse balance bar 23, and a first right support bar 25 connected to the other end of the first transverse balance bar 23, wherein the first support protrusions 21 are respectively formed on the outer sides of the first left support bar 24 and the first right support bar 25. Meanwhile, the two first position-limiting abutting ends 22 of the first balance bar 2 are respectively formed at the ends of the first left support bar 24 and the first right support bar 25.
  • the first balance bar 2 is U-shaped as a whole.
  • the second balance bar 3 includes a second transverse balance bar 33, a second left support bar 34 connected to one end of the second transverse balance bar 33, and a second right support bar 35 connected to the other end of the second transverse balance bar 33, wherein the second support protrusions 31 are respectively formed on the outer sides of the second left support bar 34 and the second right support bar 35. Meanwhile, the two second position-limiting abutting ends 32 of the second balance bar 3 are respectively formed at the ends of the second left support bar 34 and the second right support bar 35.
  • the second balance bar 3 is U-shaped as a whole.
  • a first connecting block 241 is formed on the inner side of the end of the first left support bar 24, and a second clamping claw 341 is provided at the end of the second left support bar 34.
  • the second clamping claw 341 has a second clamping claw opening 3411 for the first connecting block 241 to be movably clamped into. The clamping connection between the first connecting block 241 and the second clamping claw 341 realizes the movable connection between the first left support bar 24 and the second left support bar 34.
  • a second connecting block 351 is formed on the inner side of the end of the second right support bar 35, and a first clamping claw 251 is provided at the end of the first right support bar 25.
  • the first clamping claw 251 has a first clamping claw opening 2511 for the second connecting block 351 to be movably clamped.
  • the second connecting block 351 is clamped with the first clamping claw 251 to realize the movable connection between the second right support bar 35 and the first right support bar 25. Therefore, the second right support bar 35 and the first right support bar 25 will not interfere with each other's swinging action, and it is also conducive to the synchronous swinging action of the two.
  • At least one second inner convex limiting portion (25111, 34111) is formed at the opening of the first clamping jaw opening 2511 and the opening of the second clamping jaw opening 3411, respectively.
  • the second inner convex limiting portion (25111, 34111) limits the first connection block 241 and the second connection block 351, so that the first connection block 241 is in the second clamping jaw opening 3411, and the second connection block 351 moves in the first clamping jaw opening 2511, and will not fall out, shift, etc., thereby improving the stability of the first balance pole 2 and the second balance pole 3 swinging up and down.
  • connection hole (231, 331) is respectively provided on the first transverse balance bar 23 and the second transverse balance bar 33, and one end of the elastic member 4 is connected to the connection hole 231 of the first transverse balance bar 23, and the other end is connected to the connection hole 331 of the second transverse balance bar 33.
  • the elastic member 4 in this embodiment is a tension spring.
  • the tension spring Since one end of the tension spring is connected to the connection hole 231 of the first transverse balance bar 23, and the other end is connected to the connection hole 331 of the second transverse balance bar 33, when the first balance bar 2 and the second balance bar 3 are pressed downward, the tension spring is stretched and deformed; when the pressure on the first balance bar 2 and the second balance bar 3 is released, the first balance bar 2 and the second balance bar 3 can be moved upward and reset under the elastic restoring force of the tension spring.
  • the balance frame assembly of this embodiment can be applied to a key switch. During installation or removal of the keycap 7 and during use, the first balance bar 2 and the second balance bar 3 will not swing excessively downward or upward, thereby effectively preventing the elastic member 4 from being excessively stretched or compressed and easily damaged, or preventing the first balance bar 2 and the second balance bar 3 from falling off.
  • the balance frame assembly has good swing stability and good overall structural stability.

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Abstract

本申请公开了一种稳固的平衡架组件，包括一基座（1）、活动连接于基座（1）的一第一平衡杆（2）、活动连接于基座（1）的一第二平衡杆（3）、及连接于第一平衡杆（2）与第二平衡杆（3）之间的至少一弹性件（4），在向下按压时，该第一平衡杆（2）与第二平衡杆（3）在弹性件（4）的弹性拉动作用下，分别以基座（1）为支撑点上下平衡摆动，所示平衡架组件还包括用于对第一平衡杆（2）与第二平衡杆（3）上摆高度进行限定的至少一上摆限位结构（5）。该平衡架组件，可以对第一平衡杆（2）与第二平衡杆（3）上摆高度进行限定，保证平衡架组件结构的稳固性，利于平衡架组件平稳摆动，提高用户体验，且便于装配。

Description

一种稳固的平衡架组件 技术领域
本实用新型涉及按键开关技术领域，尤其涉及一种稳固的平衡架组件。
 背景技术
在现有按键开关中，为了提高按压平衡性，会在按键开关内部增加平衡架结构，由平衡架结构的下摆与上摆实现按键开关的导通与断开性能，现有的平衡架结构通常设置两个平衡杆，两个平衡杆在端部进行铰接，利于两个平衡杆的同步摆动，进而实现平衡架结构的平衡摆动，由于平衡架结构采用两个平衡架相互铰接的方式，在使用或装配过程中，平衡架结构上摆或下摆范围过大时容易出现平衡架结构脱落而失去平衡性的现象，平衡架结构的稳固性较差，影响用户体验，且不易装配。
实用新型内容
针对上述不足，本实用新型的目的在于提供一种稳固的平衡架组件，可以对第一平衡杆与第二平衡杆上摆高度进行限定，保证平衡架组件结构的稳固性，利于平衡架组件平稳摆动，提高用户体验，且便于装配。
本实用新型为达到上述目的所采用的技术方案是：一种稳固的平衡架组件，包括一基座、活动连接于基座的一第一平衡杆、活动连接于基座的一第二平衡杆、及连接于第一平衡杆与第二平衡杆之间的至少一弹性件，在向下按压时，该第一平衡杆与第二平衡杆在弹性件的弹性拉动作用下，分别以基座为支撑点上下平衡摆动，所示平衡架组件还包括用于对第一平衡杆与第二平衡杆上摆高度进行限定的至少一上摆限位结构。
作为本实用新型的进一步改进，所述上摆限位结构包括设置于第一平衡杆与第二平衡杆之间的一上摆限位杆，该上摆限位杆的一端抵接于第一平衡杆的上端面，上摆限位杆的另一端抵接于第二平衡杆的上端面。
作为本实用新型的进一步改进，所述上摆限位结构还包括与上摆限位杆连接的一纵向支撑板，该纵向支撑板向下延伸并与基板连接形成一体结构。
作为本实用新型的进一步改进，所述上摆限位结构包括两个且分别形成于基座的两侧边上。
作为本实用新型的进一步改进，在所述第一平衡杆两侧分别形成有一第一支撑凸块，在所述基座的两侧边上分别形成有供第一支撑凸块活动卡入的一第一支撑卡槽，该第一支撑凸块活动卡入第一支撑卡槽内形成第一平衡杆在基座上的支撑点；在所述第二平衡杆两侧分别形成有一第二支撑凸块，在所述基座的两侧边上分别形成有供第二支撑凸块活动卡入的一第二支撑卡槽，该第二支撑凸块活动卡入第二支撑卡槽内形成第二平衡杆在基座上的支撑点；在所述第一支撑卡槽的开口处与第二支撑卡槽的开口处分别形成有一第一内凸限位部。
作为本实用新型的进一步改进，所述第一平衡杆具有两个第一限位抵接端，该两个第一限位抵接端分别抵接于基座与PCB板两者中的至少一者上；所述第二平衡杆具有两个第二限位抵接端，该两个第二限位抵接端分别抵接于基座与PCB板两者中的至少一者上。
作为本实用新型的进一步改进，在所述基座两内侧边上分别设置有供第一限位抵接端和/或第二限位抵接端抵接的一限位抵接块。
作为本实用新型的进一步改进，所述第一平衡杆包括一第一横向平衡条、连接于第一横向平衡条一端的一第一左支撑条、及连接于第一横向平衡条另一端的一第一右支撑条，其中，在该第一左支撑条与第一右支撑条的外侧边上分别形成有所述第一支撑凸块；所述第二平衡杆包括一第二横向平衡条、连接于第二横向平衡条一端的一第二左支撑条、及连接于第二横向平衡条另一端的一第二右支撑条，其中，在该第二左支撑条与第二右支撑条的外侧边上分别形成有所述第二支撑凸块。
作为本实用新型的进一步改进，在所述第一左支撑条端部内侧形成有一第一连接卡块，在所述第二左支撑条端部设置有一第二夹爪，在该第二夹爪上具有供第一连接卡块活动卡入的一第二夹爪口；在所述第二右支撑条端部内侧形成有一第二连接卡块，在所述第一右支撑条端部设置有一第一夹爪，在该第一夹爪上具有供第二连接卡块活动卡入的一第一夹爪口；在所述第一夹爪口的开口处与第二夹爪口的开口处分别形成有至少一第二内凸限位部。
作为本实用新型的进一步改进，在所述第一横向平衡条与第二横向平衡条上分别开设有一连接孔，所述弹性件一端连接于第一横向平衡条的连接孔，另一端连接于第二横向平衡条的连接孔。
本实用新型的有益效果为：
该平衡架组件通过设置上摆限位结构，对第一平衡杆与第二平衡杆上摆高度进行限定避免弹性件4被过度压缩而容易损坏或出现第一平衡杆2与第二平衡杆3脱落的现象，保证平衡架组件结构的稳固性，利于平衡架组件平稳摆动，提高用户体验，且便于装配。
上述是实用新型技术方案的概述，以下结合附图与具体实施方式，对本实用新型做进一步说明。
附图说明
图1为本实用新型的整体结构示意图； 
图2为本实用新型的爆炸图； 
图3为本实用新型中第一平衡杆的结构示意图； 
图4为本实用新型中第二平衡杆的结构示意图； 
图5为本实用新型中基座的结构示意图； 
图6为本实用新型中基座与第一平衡杆设置于PCB板上的结构示意图； 
图7为本实用新型中平衡架组件处于未按压自由状态下的一剖面图； 
图8为本实用新型中平衡架组件处于按压状态下的一剖面图。
具体实施方式  
为更进一步阐述本实用新型为达到预定目的所采取的技术手段及功效，以下结合附图及较佳实施例，对本实用新型的具体实施方式详细说明。
请参照图1至图4，本实用新型实施例提供一种稳固的平衡架组件，包括一基座1、活动连接于基座1的一第一平衡杆2、活动连接于基座的一第二平衡杆3、及连接于第一平衡杆2与第二平衡杆3之间的至少一弹性件4，在向下按压时，该第一平衡杆2与第二平衡杆3在弹性件4的弹性拉动作用下，分别以基座1为支撑点上下平衡摆动。具体的，第一平衡杆2与基座1的活动连接点即为第一平衡杆2在基座1上的支撑点，第二平衡杆3与基座1的活动连接点即为第二平衡杆3在基座1上的支撑点。在本实施例中，平衡架组件还包括用于对第一平衡杆2与第二平衡杆3上摆高度进行限定的至少一上摆限位结构5。避免弹性件4被过度压缩而容易损坏或出现第一平衡杆2与第二平衡杆3脱落的现象，保证平衡架组件结构的稳固性，利于平衡架组件平稳摆动，提高用户体验，且便于装配。
具体的，在向下按压第一平衡杆2与第二平衡杆3时，第一平衡杆2与第二平衡杆3因受到向下的作用力，并在弹性件4的弹性拉动结合作用下，先下移，当下移到达支撑点所在高度，并继续下移超过支撑点的瞬间，第一平衡杆2在基座1上的支撑点、及第二平衡杆3在基座1上的支撑点分别具有向上顶的力，即上拱力，使得第一平衡杆2与第二平衡杆3远离支撑点的部分受到一个自然向下的力而下移，即由上拱力促使第一平衡杆2与第二平衡杆3下摆，则实现第一平衡杆2与第二平衡杆3的平衡下摆，如图7与图8所示，从未按压状态变为按压状态。在上述按压过程中，上摆限位结构5不会限制第一平衡杆2与第二平衡杆3下移，当第一平衡杆2与第二平衡杆3下移高度低于支撑点高度的瞬间，给人手一种段落感，即反馈感，从而增加按压手感。
在整个过程中，弹性件4因被拉伸而产生形变，当释放对第一平衡杆2与第二平衡杆3的按压时，在弹性件4的弹性恢复力作用下，第一平衡杆2与第二平衡杆3上移复位，即由弹性恢复力拉动第一平衡杆2与第二平衡杆3上摆，如图7所示。在此过程中，当第一平衡杆2与第二平衡杆3上移到达支撑点所在高度，并继续上移超过支撑点的瞬间，第一平衡杆2与第二平衡杆3因继续获得上弹力而继续上移，直到上摆限位结构5对第一平衡杆2与第二平衡杆3产生力的作用，并限制第一平衡杆2与第二平衡杆3继续上移，上移复位完成，由于上摆限位结构5的限制作用，使得第一平衡杆2与第二平衡杆3上移至初始位置即停止摆动，避免第一平衡杆2与第二平衡杆3因惯性作用而继续上移，使得弹性件4被过度压缩而容易损坏或第一平衡杆2与第二平衡杆3脱落而失去平衡性的现象，从而保证平衡架组件结构的稳固性，利于平衡架组件平稳摆动，提高用户体验。
为了便于对第一平衡杆2与第二平衡杆3的按压，通常在平衡架组件上安装上键帽7，如图7与图8所示。由于第一平衡杆2与第二平衡杆3的平衡摆动作用，不管按压键帽7上的任意位置，键帽7均可以平稳下移。本实施例的平衡架组件在进行键帽7的装配时，有时需要取下键帽7，在取下键帽7的整个过程中，会对第一平衡杆2与第二平衡杆3产生一个向上的上拔力，而由于受到上摆限位结构5的限制，第一平衡杆2与第二平衡杆3受到上拔力时无法上移，避免了弹性件4被过度压缩而容易损坏或出现第一平衡杆2与第二平衡杆3脱落的现象，保证平衡架组件结构的稳固性，且便于装配。
可见，本实施例的平衡架组件，由于设置了上摆限位结构5，对第一平衡杆2与第二平衡杆3上移的位置进行限定，不会出现弹性件4被过度压缩而容易损坏的现象，也不会出现第一平衡杆2与第二平衡杆3因上摆范围过大而脱落的现象，保证平衡架组件结构的稳固性，利于平衡架组件平稳摆动，提高用户体验，且便于装配。
本实施例具体公开了一种上摆限位结构5，具体的，如图1所示，所述上摆限位结构5包括设置于第一平衡杆2与第二平衡杆3之间的一上摆限位杆51，该上摆限位杆51的一端抵接于第一平衡杆2的上端面，上摆限位杆51的另一端抵接于第二平衡杆3的上端面。即上摆限位结构5通过上摆限位杆51对第一平衡杆2与第二平衡杆3的上移进行阻挡，从而实现对第一平衡杆2与第二平衡杆3上摆高度的限定。
具体的，如图5与图6所示，所述上摆限位结构5还包括与上摆限位杆51连接的一纵向支撑板52，该纵向支撑板52向下延伸并与基板1连接形成一体结构。即上摆限位结构5与基座1固定连接，可以有效的对第一平衡杆2与第二平衡杆3的上移进行阻挡。
具体的，所述上摆限位结构5包括两个且分别形成于基座1的两侧边上。可以同时对第一平衡杆2与第二平衡杆3的两侧进行限位，利于平衡架组件上移复位的平衡性。
对于第一平衡杆2与基座1的具体连接方式，如图1、图3与图5所示，本实施例在所述第一平衡杆2两侧分别形成有一第一支撑凸块21，在所述基座1的两侧边上分别形成有供第一支撑凸块21活动卡入的一第一支撑卡槽11，该第一支撑凸块21活动卡入第一支撑卡槽11内形成第一平衡杆2在基座1上的支撑点，第一平衡杆2以该支撑点上下摆动；对于第二平衡杆3与基座1的具体连接方式，如图1、图4与图5所示，本实施例在所述第二平衡杆3两侧分别形成有一第二支撑凸块31，在所述基座1的两侧边上分别形成有供第二支撑凸块31活动卡入的一第二支撑卡槽12，该第二支撑凸块31活动卡入第二支撑卡槽12内形成第二平衡杆3在基座1上的支撑点，第二平衡杆3以该支撑点上下摆动。
具体的所述第一支撑卡槽11与第二支撑卡槽12形成于摆限位结构5的纵向支撑板52上，保证平衡架组件摆动的稳定性，同时，整个平衡架组件结构紧凑且稳固性好。
在第一平衡杆2与第二平衡杆3摆动的过程中，为了防止第一支撑凸块21脱出第一支撑卡槽11，第二支撑凸块31脱出第二支撑卡槽12，如图5所示，本实施例在所述第一支撑卡槽11的开口处与第二支撑卡槽12的开口处分别形成有一第一内凸限位部(111，121)。由第一内凸限位部(111，121)对第一支撑凸块21与第二支撑凸块31做限位，使得第一支撑凸块21与第二支撑凸块31分别在第一支撑卡槽11与第二支撑卡槽12内活动的同时，不会出现脱出、移位等现象。由此，使得第一平衡杆2与第二平衡杆3始终能以在基座1上的支撑点进行摆动，提高第一平衡杆2与第二平衡杆3上下摆动的稳定性的同时，还能获得反馈感，从而提高按压手感。
在第一平衡杆2与第二平衡杆3上下摆动的过程中，为了进一步对两者的摆动行程进行限制，如图3与图4所示，所述第一平衡杆2具有两个第一限位抵接端22，该两个第一限位抵接端22分别抵接于基座1与PCB板6两者中的至少一者上。也就是说，第一平衡杆2的两个第一限位抵接端22可以都抵接于基座1上，也可以都抵接于PCB板6上，或者两个第一限位抵接端22中的其中一者抵接于基座1上，另外一者抵接于PCB板6上，如图6所示。同时，所述第二平衡杆3具有两个第二限位抵接端32，该两个第二限位抵接端32分别抵接于基座1与PCB板6两者中的至少一者上。同理，第二平衡杆3的两个第二限位抵接端32可以都抵接于基座1上，也可以都抵接于PCB板6上，或者两个第二限位抵接端32中的其中一者抵接于基座1上，另外一者抵接于PCB板6上。
相应的，如图6所示，在所述基座1两内侧边上分别设置有供第一限位抵接端22和/或第二限位抵接端32抵接的一限位抵接块13。
不管采用上述何种抵接方式，只要第一平衡杆2的两个第一限位抵接端22与第二平衡杆3的两个第二限位抵接端32能够被限位住即可，防止在弹性件4弹性拉动第一平衡杆2与第二平衡杆3时，第一平衡杆2与第二平衡杆3的摆动范围过大，甚至出现第一平衡杆2往第二平衡杆3一侧摆动，或第二平衡杆3往第一平衡杆2一侧摆动的现象。由此，确保第一平衡杆2与第二平衡杆3能够在一定范围内摆动，摆动行程准确，提高两者摆动的稳定性。
在本实施例中，如图3所示，所述第一平衡杆2包括一第一横向平衡条23、连接于第一横向平衡条23一端的一第一左支撑条24、及连接于第一横向平衡条23另一端的一第一右支撑条25，其中，在该第一左支撑条24与第一右支撑条25的外侧边上分别形成有所述第一支撑凸块21。同时，第一平衡杆2的两个第一限位抵接端22分别形成于第一左支撑条24与第一右支撑条25端部。第一平衡杆2整体呈U形。
在本实施例中，如图4所示，所述第二平衡杆3包括一第二横向平衡条33、连接于第二横向平衡条33一端的一第二左支撑条34、及连接于第二横向平衡条33另一端的一第二右支撑条35，其中，在该第二左支撑条34与第二右支撑条35的外侧边上分别形成有所述第二支撑凸块31。同时，第二平衡杆3的两个第二限位抵接端32分别形成于第二左支撑条34与第二右支撑条35端部。第二平衡杆3整体呈U形。
对于第一平衡杆2与第二平衡杆3的连接，如图1、图3与图4所示，本实施例在所述第一左支撑条24端部内侧形成有一第一连接卡块241，在所述第二左支撑条34端部设置有一第二夹爪341，在该第二夹爪341上具有供第一连接卡块241活动卡入的一第二夹爪口3411，由第一连接卡块241与第二夹爪341的卡接，实现第一左支撑条24与第二左支撑条34之间的活动连接，由此，第一左支撑条24与第二左支撑条34之间既不会对彼此的摆动动作产生干扰，也利于两者同步发生摆动动作。在所述第二右支撑条35端部内侧形成有一第二连接卡块351，在所述第一右支撑条25端部设置有一第一夹爪251，在该第一夹爪251上具有供第二连接卡块351活动卡入的一第一夹爪口2511，由第二连接卡块351与第一夹爪251的卡接，实现第二右支撑条35与第一右支撑条25之间的活动连接，由此，第二右支撑条35与第一右支撑条25之间既不会对彼此的摆动动作产生干扰，也利于两者同步发生摆动动作。
通过将第一平衡杆2与第二平衡杆3进行活动连接，既不会对彼此的摆动动作产生干扰，也利于两者同步发生摆动动作，实现平稳摆动的目的。
在第一平衡杆2与第二平衡杆3摆动的过程中，为了防止第一连接卡块241脱离第二夹爪341，第二连接卡块351脱离第一夹爪251，如图3与图4所示，本实施例在所述第一夹爪口2511的开口处与第二夹爪口3411的开口处分别形成有至少一第二内凸限位部(25111，34111)。由第二内凸限位部(25111，34111)对第一连接卡块241与第二连接卡块351做限位，使得第一连接卡块241在第二夹爪口3411内，第二连接卡块351在第一夹爪口2511内活动的同时，不会出现脱出、移位等现象，由此，提高第一平衡杆2与第二平衡杆3上下摆动的稳定性。
对于弹性件4、第一平衡杆2与第二平衡杆3三者的连接关系，本实施例在所述第一横向平衡条23与第二横向平衡条33上分别开设有一连接孔(231，331)，所述弹性件4一端连接于第一横向平衡条23的连接孔231，另一端连接于第二横向平衡条33的连接孔331。具体的，本实施例所述弹性件4为拉簧。由于拉簧一端连接于第一横向平衡条23的连接孔231，另一端连接于第二横向平衡条33的连接孔331，在第一平衡杆2与第二平衡杆3被向下按压时，拉簧被拉伸产生形变；在释放对第一平衡杆2与第二平衡杆3的按压时，第一平衡杆2与第二平衡杆3可以在拉簧的弹性恢复力作用下上移复位。
本实施例平衡架组件可以应用于按键开关上，在安装或取下键帽7、及使用过程中，均不会出现第一平衡杆2与第二平衡杆3过度下摆或上摆的现象，有效避免弹性4件被过度拉伸或压缩而容易损坏或出现第一平衡杆2与第二平衡杆3脱落的现象，平衡架组件的摆动稳定性好、及整体结构稳固性佳。
    以上所述，仅是本实用新型的较佳实施例而已，并非对本实用新型的技术范围作任何限制，故采用与本实用新型上述实施例相同或近似的技术特征，而得到的其他结构，均在本实用新型的保护范围之内。

Claims (10)

  1. 一种稳固的平衡架组件，包括一基座、活动连接于基座的一第一平衡杆、活动连接于基座的一第二平衡杆、及连接于第一平衡杆与第二平衡杆之间的至少一弹性件，在向下按压时，该第一平衡杆与第二平衡杆在弹性件的弹性拉动作用下，分别以基座为支撑点上下平衡摆动，其特征在于，还包括用于对第一平衡杆与第二平衡杆上摆高度进行限定的至少一上摆限位结构。
  2. 根据权利要求1所述的稳固的平衡架组件，其特征在于，所述上摆限位结构包括设置于第一平衡杆与第二平衡杆之间的一上摆限位杆，该上摆限位杆的一端抵接于第一平衡杆的上端面，上摆限位杆的另一端抵接于第二平衡杆的上端面。
  3. 根据权利要求2所述的稳固的平衡架组件，其特征在于，所述上摆限位结构还包括与上摆限位杆连接的一纵向支撑板，该纵向支撑板向下延伸并与基板连接形成一体结构。
  4. 根据权利要求3所述的稳固的平衡架组件，其特征在于，所述上摆限位结构包括两个且分别形成于基座的两侧边上。
  5. 根据权利要求1所述的稳固的平衡架组件，其特征在于，在所述第一平衡杆两侧分别形成有一第一支撑凸块，在所述基座的两侧边上分别形成有供第一支撑凸块活动卡入的一第一支撑卡槽，该第一支撑凸块活动卡入第一支撑卡槽内形成第一平衡杆在基座上的支撑点；在所述第二平衡杆两侧分别形成有一第二支撑凸块，在所述基座的两侧边上分别形成有供第二支撑凸块活动卡入的一第二支撑卡槽，该第二支撑凸块活动卡入第二支撑卡槽内形成第二平衡杆在基座上的支撑点；在所述第一支撑卡槽的开口处与第二支撑卡槽的开口处分别形成有一第一内凸限位部。
  6. 根据权利要求1至5中任一所述的稳固的平衡架组件，其特征在于，所述第一平衡杆具有两个第一限位抵接端，该两个第一限位抵接端分别抵接于基座与PCB板两者中的至少一者上；所述第二平衡杆具有两个第二限位抵接端，该两个第二限位抵接端分别抵接于基座与PCB板两者中的至少一者上。
  7. 根据权利要求6所述的稳固的平衡架组件，其特征在于，在所述基座两内侧边上分别设置有供第一限位抵接端和/或第二限位抵接端抵接的一限位抵接块。
  8. 根据权利要求5所述的稳固的平衡架组件，其特征在于，所述第一平衡杆包括一第一横向平衡条、连接于第一横向平衡条一端的一第一左支撑条、及连接于第一横向平衡条另一端的一第一右支撑条，其中，在该第一左支撑条与第一右支撑条的外侧边上分别形成有所述第一支撑凸块；所述第二平衡杆包括一第二横向平衡条、连接于第二横向平衡条一端的一第二左支撑条、及连接于第二横向平衡条另一端的一第二右支撑条，其中，在该第二左支撑条与第二右支撑条的外侧边上分别形成有所述第二支撑凸块。
  9. 根据权利要求8所述的稳固的平衡架组件，其特征在于，在所述第一左支撑条端部内侧形成有一第一连接卡块，在所述第二左支撑条端部设置有一第二夹爪，在该第二夹爪上具有供第一连接卡块活动卡入的一第二夹爪口；在所述第二右支撑条端部内侧形成有一第二连接卡块，在所述第一右支撑条端部设置有一第一夹爪，在该第一夹爪上具有供第二连接卡块活动卡入的一第一夹爪口；在所述第一夹爪口的开口处与第二夹爪口的开口处分别形成有至少一第二内凸限位部。
  10. 根据权利要求8所述的稳固的平衡架组件，其特征在于，在所述第一横向平衡条与第二横向平衡条上分别开设有一连接孔，所述弹性件一端连接于第一横向平衡条的连接孔，另一端连接于第二横向平衡条的连接孔。
PCT/CN2024/094729 2023-06-12 2024-05-22 一种稳固的平衡架组件 WO2024255553A1 (zh)

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