WO2019119397A1 - 一种新型电动推杆 - Google Patents

一种新型电动推杆 Download PDF

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Publication number
WO2019119397A1
WO2019119397A1 PCT/CN2017/117922 CN2017117922W WO2019119397A1 WO 2019119397 A1 WO2019119397 A1 WO 2019119397A1 CN 2017117922 W CN2017117922 W CN 2017117922W WO 2019119397 A1 WO2019119397 A1 WO 2019119397A1
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WO
WIPO (PCT)
Prior art keywords
wire sleeve
push rod
electric push
telescopic cylinder
sleeve
Prior art date
Application number
PCT/CN2017/117922
Other languages
English (en)
French (fr)
Inventor
李宏爽
Original Assignee
李宏爽
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 李宏爽 filed Critical 李宏爽
Priority to PCT/CN2017/117922 priority Critical patent/WO2019119397A1/zh
Publication of WO2019119397A1 publication Critical patent/WO2019119397A1/zh

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Classifications

    • 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
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa

Definitions

  • the invention belongs to the technical field of auxiliary driving structures, and in particular relates to a novel electric push rod.
  • the electric push rod can realize the opening and closing or lifting control in a small space through the telescopic characteristics of the rod body, and is thus widely used in an automatic door of a trunk of a car, a smart home, a medical bed or the like. Characteristic equipment.
  • the conventional electric push rod In order to ensure the stability of the push-out state, the conventional electric push rod often maintains the smoothness of the push-out state by the built-in spring member, or the thread fit of the screw structure is used to achieve the stability; however, the design makes the structure of the product on the one hand.
  • An object of the present invention is to provide a novel electric push rod, which aims to solve the problem that the conventional electric push rod has a complicated structure and is difficult to achieve miniaturization and light weight.
  • a novel electric push rod comprising a drive assembly, a wire sleeve coupled to the drive assembly, and a telescopic barrel movably coupled to the wire sleeve, and a compression member connected to the wire sleeve, the outer side of one end of the telescopic cylinder is further connected with a first external thread for engaging with a first internal thread on the inner wall of the wire sleeve, and the other end
  • the telescopic movement is in the wire sleeve, and a cavity is formed in the telescopic cylinder, and the compression member compresses or releases the gas in the cavity as the wire sleeve rotates.
  • first internal threads are evenly arranged along the axial direction of the inner wall of the wire sleeve.
  • the telescopic cylinder body is further fixedly connected with a limit position collar, the first external thread is formed on the limit collar, and when the wire sleeve is rotated, the limit sleeve The ring passes through the first external thread and the ⁇ 0 2019/119397
  • the first internal thread connection is such that the telescopic cylinder moves in the axial direction of the wire sleeve.
  • the inner wall of the cavity of the telescopic cylinder is provided with a second internal thread
  • the compression member is connected with a second external thread for engaging with the second internal thread, the second inner The thread extends in the axial direction of the telescopic cylinder.
  • the compression member is a support rod extending along an axis of the wire sleeve, and the support rod is divided into a first end facing the driving assembly and a second end facing the telescopic cylinder And the first end limit abuts on the wire sleeve, and the second end limit is movably connected in the cavity.
  • the telescopic cylinder moves along the axial direction of the wire sleeve with the rotation of the wire sleeve.
  • the cavity is closed away from one end of the wire sleeve, and the other end is provided with an opening through which the second end of the support rod moves, the side wall of the second end A seal is also attached to form a sealed space within the cavity.
  • the end of the second end further extends outwardly to abut the circular table, the sealing member is sleeved on the support rod, and one end of the sealing member abuts on the abutting round table On the side wall.
  • the shape of the seal is the same as the cross-sectional shape of the cavity, and the outer peripheral surface of the seal abuts on the inner wall of the cavity.
  • the driving assembly includes a driving motor and a driving shaft connected to the wire sleeve and a transmission structure connected between the driving motor and the driving shaft, the first end The end limit is connected to the transmission structure.
  • the transmission structure includes a first connecting member that is sleeved on the driving shaft, a connecting shaft that rotates with the driving shaft, and is sleeved on the connecting shaft and is available for
  • the second connecting member of the first connecting member is coupled to the end of the wire sleeve.
  • one end of the connecting shaft passes through the end surface of the wire sleeve and is connected in the wire sleeve, and the other end of the connecting shaft is connected with a gear member, and the driving shaft is oriented
  • One end of the connecting shaft is further provided with a gear sleeve for engaging with the gear member.
  • one end of the connecting shaft located in the wire sleeve further extends longitudinally to form a limiting member, and the end surface of the limiting member further has a spherical groove, and the end of the first end Abutting in the spherical groove, and an end surface of the first end is arc-shaped.
  • first connecting member is recessed with a plurality of connecting slots, and the end surface of the second connecting member is outwardly ⁇ 0 2019/119397
  • the novel electric push rod further includes a protective sleeve sleeved on the outer side of the wire sleeve and the driving assembly, and the protective cover body is attached to the wire sleeve and the driving assembly The outer side.
  • the novel electric push rod provided by the present invention has the technical effect of the prior art: by connecting the wire sleeve to the drive assembly, the wire sleeve can be driven by the drive assembly
  • the shaft core rotates, and the inner wall of the wire sleeve is provided with a first internal thread.
  • the telescopic cylinder connected to the wire sleeve cooperates with the first internal thread through the first external thread.
  • the wire sleeve moving relative to the wire sleeve; further, the wire sleeve is connected with a compression member in the limit, the compression member can compress or release the telescopic cylinder when the telescopic cylinder moves relative to the wire sleeve
  • the gas in the body cavity so that the cooperation of the telescopic cylinder and the compression member can replace the traditional spring member, and the thread is disposed in the wire sleeve, so that the wire sleeve can be ensured under the condition of sufficient mating strength.
  • the diameter of the barrel is reduced as much as possible, which in turn makes efficient use of space while saving material costs.
  • FIG. 1 is an exploded view of a novel electric push rod according to an embodiment of the present invention.
  • FIG. 2 is a half cross-sectional view of a novel electric push rod according to an embodiment of the present invention.
  • FIG. 3 is a partial enlarged view of eight places in FIG. 3.
  • FIG. 4 is a partial enlarged view of FIG. 3: 8.
  • the driving assembly 10 the driving motor 11, the driving shaft 12, the gear sleeve 121, the transmission structure 13, the second connecting member 14, the connecting table 141, the first connecting member 15, the connecting groove 151, the connecting shaft 16, the gear 161, the limiting member 162, the spherical groove 163, the wire sleeve 20, the first internal thread 21, the compression member 22, the support rod 22&, ⁇ 0 2019/119397
  • first and second are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality” means two or more, unless specifically defined otherwise.
  • a novel electric pusher including a drive assembly 10, a wire sleeve 20 and a telescopic cylinder 30, and a compression member 22.
  • the wire sleeve 20 is coupled to the end of the drive assembly 10, and the wire sleeve 20 is rotatable with the driving action of the drive assembly 10, and the telescopic cylinder 30 is movably coupled within the wire sleeve 20, and
  • the telescopic cylinder 30 can be telescopically moved relative to the wire sleeve 20 when the wire sleeve 20 is rotated, and the structure connected to the end of the telescopic cylinder 30 can be pushed outward or retracted.
  • the compression member 22 is constrained to be connected within the wire sleeve 20.
  • An inner cavity is formed in the wire sleeve 20, and a first internal thread 21 is disposed on the cavity wall of the inner cavity, and the telescopic cylinder 30 is telescopically moved therein. ⁇ 0 2019/119397
  • a first external thread 33 for engaging with the first internal thread 21 on the inner wall of the wire sleeve 20, and the other end of the telescopic cylinder 30 is stretched and contracted.
  • the mobile connection is outside the wire sleeve 20.
  • a cavity 31 is formed in the telescopic cylinder 30, and the compression member 22 compresses or releases the gas in the cavity 31 as the wire sleeve 20 rotates.
  • the first internal thread 21 is disposed in the wire sleeve 20, and the telescopic cylinder 30 is provided.
  • the first external thread 33 is externally connected, and the two structures cooperate with each other to support the entire structure, so that the electric push rod can be made lighter and thinner, so that it can be adapted to more application environments.
  • the novel electric push rod of the above design by connecting the wire sleeve 20 to the drive assembly 10, the wire sleeve 20 can be rotated with its axis line as the drive assembly 10 is driven, and the wire
  • the inner wall of the sleeve 20 is provided with a first internal thread 21, and when the wire sleeve 20 rotates, the telescopic cylinder 30 connected to the wire sleeve 20 is engaged with the first internal thread 21 by the first external thread 33 and Moving relative to the wire sleeve 20; further, the wire sleeve 20 is internally connected with a compression member 22, and the compression member 22 moves the compression member 22 when the telescopic cylinder 30 moves relative to the wire sleeve 20.
  • the gas in the cavity 31 of the telescopic cylinder 30 can be compressed or released, so that the cooperation of the telescopic cylinder 30 and the compression member 22 can replace the conventional spring member, and the thread is disposed in the wire sleeve 20, It is ensured that the diameter of the wire sleeve 20 can be reduced as much as possible under the requirement of sufficient mating strength, thereby effectively utilizing space and saving material cost.
  • the first internal thread 21 is evenly arranged in the axial direction of the inner wall of the inner cavity of the wire sleeve 20.
  • the design can ensure that the telescopic cylinder 30 moves along the axial direction of the wire sleeve 20, thereby ensuring more accurate alignment of the end of the telescopic cylinder 30 when the object is pushed and pulled.
  • the telescopic cylinder 30 is also fixedly connected with a limit collar 32, and the first external thread 33 is formed on the limit collar. 32, and when the wire sleeve 20 rotates, the limiting collar 32 is connected to the first internal thread 21 through the first external thread 33, so that the telescopic cylinder 30 is along the axial direction of the wire sleeve 20. Move in the direction.
  • the width of the limiting collar 32 is much smaller than the length of the wire sleeve 20, and the wire sleeve 20 is further ⁇ 0 2019/119397
  • the limiting collar 32 is preferably fixed to the outer side surface of the telescopic cylinder 30 by welding or other fixed connection.
  • the first external thread 33 is formed on the outer side surface of the limiting collar 32, and the first An external thread 33 has the same thread size as the first internal thread 21 and exactly matches
  • a second internal thread may be disposed on the inner wall of the cavity 31 of the telescopic cylinder 30, and the compression member 22 is connected thereto.
  • a second external thread (not shown) is provided for engaging the second internal thread, and the second internal thread extends in the axial direction of the telescopic cylinder 30.
  • the compression member 22 rotates at the same time, and the first external thread 33 and the first internal thread 21 cooperate to realize the movement of the telescopic cylinder 30 relative to the wire sleeve 20, the second The internal thread and the second external thread cooperate to assist the movement of the telescopic cylinder 30 relative to the wire sleeve 20 and to ensure stability of the corresponding position when the telescopic cylinder 30 is extended or retracted.
  • the compression member 22 is a support rod 22& a first end 221 of the assembly 10 and a second end 222 facing the telescopic cylinder 30, and the first end 221 is abutted against the wire sleeve 20, and the second end 222 is limitedly moved and connected to the cavity.
  • the compression member 22 is a support rod 22& a first end 221 of the assembly 10 and a second end 222 facing the telescopic cylinder 30, and the first end 221 is abutted against the wire sleeve 20, and the second end 222 is limitedly moved and connected to the cavity.
  • the second end 222 When the wire sleeve 20 rotates, the second end 222 is limited to move on the telescopic cylinder 30; wherein the position of the second end 222 is substantially constant, and the wire sleeve 20 rotates, and the expansion and contraction
  • the second end 222 When the cylinder 30 moves toward the wire sleeve 20, the second end 222 is equivalent to moving toward the inside of the telescopic cylinder 30, thereby compressing the air in the cavity 31 to maintain the stability of the entire electric push rod;
  • the second end 222 acts to move outwardly toward the telescopic cylinder 3 , thereby releasing the air compressed in the cavity 31.
  • the force of the rebound which makes the electric push rod easier and easier to push out.
  • the telescopic cylinder 30 moves in the axial direction of the wire sleeve 20 as the wire sleeve 20 rotates.
  • This design ensures that the strength of the entire structure is better when the telescopic cylinder 30 and the wire sleeve 20 are mated, and the entire structure can be made lighter and smaller.
  • the cavity 31 is closed away from one end of the wire sleeve 20, and the other end is provided with the first support rod 22 &
  • the second end 222 moves through the opening, and the side wall of the second end 222 is also connected with a sealing member 23 for forming a sealed space in the cavity 31.
  • This design can be ⁇ 0 2019/119397
  • the end of the second end 222 further extends outwardly from the abutment truncated cone 2211, and the sealing member 23 is sleeved on the support rod. 22 & upper, and one end of the sealing member 23 abuts against the side wall of the abutting round table 2211.
  • This design ensures the stability of the connection of the seal at the second end 222 and the reliability of the seal within the cavity 31.
  • the shape of the sealing member 23 is the same as the cross-sectional shape of the cavity 31, and the outer peripheral surface of the sealing member 23 abuts against the cavity. On the inner wall of 31. This design also ensures the stability and continuity of the enclosed space within the cavity 31.
  • the driving assembly 10 includes a driving motor 11 and a driving shaft 12 connected to the wire sleeve 20 and connected to the driving A transmission structure 13 between the motor 11 and the drive shaft 12, the end of the first end 221 is limitedly connected to the transmission structure 13. This design ensures the stability of the connection of the support within the wire sleeve 20.
  • the transmission mechanism 13 comprises a first socket connected to the stopper member 12 in the drive shaft 15, the rotating shaft 12 is connected with the drive shaft 16 and disposed in the connecting sleeve A second connector 14 is provided on the shaft 16 for engagement with the first connector 15, and the second connector 14 is coupled to the end of the wire sleeve 20.
  • the driving motor 11 drives the driving shaft 12 to rotate, and simultaneously drives the first connecting member 15 to rotate.
  • the connecting shaft 16 is coupled to the driving shaft 12, and the connecting shaft 16 rotates to drive the second connecting member. 14 rotation, that is, the rotation of the wire sleeve 20; in this process, the first connecting member 15 can also rotate the second connecting member 14 while rotating; the design can ensure the stability of the rotation of the wire sleeve 20 .
  • the connecting shaft 16-end passes through the end surface of the wire sleeve 20 and is connected in the wire sleeve 20 in a limit position.
  • a gear member 161 is attached to the other end of the connecting shaft 16, and a gear sleeve 12 1 for engaging the gear member 161 is further provided at one end of the driving shaft 12 toward the connecting shaft 16.
  • the drive shaft 12 and the connecting shaft 16 are driven by gears to ensure the effectiveness of the transmission; and one end of the connecting shaft 16 passes through the end surface of the wire sleeve 20, and the limit is connected to the wire sleeve.
  • the wire sleeve 20 can be driven to rotate while the connecting shaft 16 is rotated. ⁇ 0 2019/119397
  • one end of the connecting shaft 16 located in the wire sleeve 20 further extends longitudinally to form a limiting member 162.
  • the limiting member 162 is provided with a limiting slot 24, and the limiting member 162 is connected to the limiting slot 24 when the connecting shaft 16 rotates, thereby driving the wire sleeve 20 to rotate.
  • a spherical groove 163 is further disposed on the end surface of the limiting member 162. The end of the first end 221 abuts the spherical groove 163, and the end surface 2221 of the first end 221 is arcuate or hemispherical. .
  • the design is such that the friction between the first end 221 and the spherical recess 163 is smaller when the connecting shaft 16 is rotated.
  • the first connecting member 15 is recessed with a plurality of connecting slots 151, and the end surface of the second connecting member 14 extends outward.
  • a plurality of connecting platforms 141 are connectable to the connecting slots 151, and each of the connecting bases 141 corresponds to the connecting slots 151.
  • the design can be such that when the first connecting member 15 rotates, the second connecting member 14 can be rotated to drive the wire sleeve 20 to rotate.
  • the new electric push rod further includes a protective sleeve 40 sleeved on the outer side of the wire sleeve 20 and the driving assembly 10,
  • the protective sleeve 40 is attached to the wire sleeve 20 and the outer side of the drive assembly 10.
  • a seal ring 41 is further connected between the protective sleeve 40 and the wire sleeve 20, so that the seal of the internal structure of the protective cover 40 can be ensured.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

一种电动推杆，包括驱动组件(10)、连接在驱动组件(10)上的丝套筒(20)和可相对移动连接在丝套筒(20)上的伸缩筒体(30)，以及限位连接在丝套筒(20)内的压缩件(22)，伸缩筒体(30)的一端外侧面上还连接有可供与丝套筒(20)内壁上的第一内螺纹(21)配合的第一外螺纹(33)，另一端可伸缩移动在丝套筒(20)外，伸缩筒体(30)内形成有一腔体(31)，压缩件(22)随丝套筒(20)转动而压缩或释放腔体(31)内的气体。该电动推杆结构简单，同时使得电动推杆实现更小型化和更轻型化。

Description

\¥0 2019/119397 卩（：17 \2017/117922
1
一种新型电动推杆
技术领域
[0001] 本发明属于辅助驱动结构技术领域， 尤其涉及一种新型电动推杆。
背景技术
[0002] 电动推杆通过杆体的伸缩特性， 进而可以在较小的空间内实现开合或者升降的 控制， 进而被广泛应用于汽车后备箱的自动门、 智能家居、 医疗床或者其他需 要使用上述特性的设备。 传统的电动推杆为了保证推出状态的稳定性， 往往通 过内置弹簧件来保持推出状态的平稳性， 或者是采用丝杆结构的螺纹配合来实 现其稳定性； 但是这样设计一方面使得产品的结构复杂， 对应的零部件多； 另 一方面为了保证电动推杆本身的稳定性， 其丝杆结构的直径一般需要相对较大 ， 并且由于丝杆件本身的特性， 使得电动推杆的小型化和轻型化难以实现。 发明概述
技术问题
[0003] 本发明的目的在于提供一种新型电动推杆， 旨在解决现有的电动推杆结构复杂 ， 同时难以实现小型化和轻型化的问题。
问题的解决方案
技术解决方案
[0004] 本发明是这样解决的： 一种新型电动推杆， 包括驱动组件、 连接在所述驱动组 件上的丝套筒和可相对移动连接在所述丝套筒上的伸缩筒体， 以及限位连接在 所述丝套筒内的压缩件， 所述伸缩筒体的一端外侧面上还连接有可供与所述丝 套筒内壁上的第一内螺纹配合的第一外螺纹， 另一端可伸缩移动在所述丝套筒 夕卜， 所述伸缩筒体内形成有一腔体， 所述压缩件随所述丝套筒转动而压缩或释 放所述腔体内的气体。
[0005] 进一步地， 所述第一内螺纹沿所述丝套筒的内壁轴向方向上均匀布置。
[0006] 进一步地， 所述伸缩筒体上还固定连接有限位套环， 所述第一外螺纹形成于所 述限位套环上， 且所述丝套筒转动时， 所述限位套环通过所述第一外螺纹与所 \¥0 2019/119397
2 述第一内螺纹连接， 使得所述伸缩筒体沿所述丝套筒的轴向方向上移动。
[0007] 进一步地， 所述伸缩筒体的腔体内壁上设有第二内螺纹， 所述压缩件上连接有 可供与所述第二内螺纹配合的第二外螺纹， 所述第二内螺纹沿所述伸缩筒体的 轴向方向延伸。
[0008] 进一步地， 所述压缩件为沿所述丝套筒轴线上延伸的支撑杆， 所述支撑杆分为 朝向所述驱动组件的第一端和朝向所述伸缩筒体的第二端， 且所述第一端限位 抵接在所述丝套筒上， 所述第二端限位移动连接在所述腔体内。
[0009] 进一步地， 所述伸缩筒体随所述丝套筒的转动沿所述丝套筒的轴线方向移动。
[0010] 进一步地， 所述腔体背离所述丝套筒的一端封闭， 另一端设有可供所述支撑杆 的所述第二端移动穿过的开孔， 所述第二端的侧壁上还连接有可使得所述腔体 内形成密封空间的密封件。
[0011] 进一步地， 所述第二端的端部还向外延伸有抵接圆台， 所述密封件套设在所述 支撑杆上， 且所述密封件的一端抵接在所述抵接圆台的侧壁上。
[0012] 进一步地， 所述密封件的形状与所述腔体的横截面形状相同， 且所述密封件的 外周面抵接在所述腔体的内壁上。
[0013] 进一步地， 所述驱动组件包括驱动电机和限位连接在所述丝套筒上的驱动轴和 连接在所述驱动电机和所述驱动轴之间的传动结构， 所述第一端的端部限位连 接在所述传动结构上。
[0014] 进一步地， 所述传动结构包括限位套接在所述驱动轴上的第一连接件、 与所述 驱动轴配合转动的连接轴和套设在所述连接轴上并可供与所述第一连接件配合 的第二连接件， 所述第二连接件连接在所述丝套筒的端部上。
[0015] 进一步地， 所述连接轴一端穿过所述丝套筒的端面并限位连接在所述丝套筒内 ， 所述连接轴的另一端上连接有齿轮件， 所述驱动轴朝向所述连接轴的一端还 设有可供与所述齿轮件配合的齿轮套。
[0016] 进一步地， 所述连接轴位于所述丝套筒内的一端还纵向延伸形成有限位件， 所 述限位件的端面上还设有球形凹槽， 所述第一端的端部抵接在所述球形凹槽内 ， 且所述第一端的端面呈圆弧状。
[0017] 进一步地， 所述第一连接件上凹设有多个连接槽， 所述第二连接件的端面向外 \¥0 2019/119397
3 延伸有多个可供连接在所述连接槽上的连接台， 每一所述连接台对应一个所述 连接槽。
[0018] 进一步地， 所述新型电动推杆还包括套设在所述丝套筒和所述驱动组件外侧的 保护套体， 所述保护套体贴合于所述丝套筒和所述驱动组件的外侧面。 发明的有益效果
有益效果
[0019] 本发明提供的新型电动推杆相对于现有的技术具有的技术效果为： 通过将丝套 筒连接在该驱动组件上， 进而丝套筒可以随着该驱动组件的驱动而以其轴心线 转动， 同时该丝套筒内壁上设有第一内螺纹， 在该丝套筒转动时， 连接在该丝 套筒内的伸缩筒体通过第一外螺纹与该第一内螺纹配合并相对于该丝套筒移动 ； 此外， 该丝套筒内限位连接有压缩件， 该压缩件在该伸缩筒体相对于该丝套 筒移动时， 该压缩件可以压缩或者释放该伸缩筒体内腔体中的气体， 从而使得 该伸缩筒体与压缩件的配合可以取代传统的弹簧件， 并且将螺纹设置在该丝套 筒内， 可以保证在足够的配合强度要求下， 可以将丝套筒的直径尽可能的减小 ， 进而可以有效利用空间， 同时节省材料成本。
对附图的简要说明
附图说明
[0020] 为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例或现有技术描 述中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是 本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的 前提下， 还可以根据这些附图获得其它的附图。
[0021] 图 1是本发明实施例提供的新型电动推杆的分解图。
[0022] 图 2是本发明实施例提供的新型电动推杆的半剖图。
[0023] 图 3是图 3中八处的局部放大图。
[0024] 图 4是图 3中：8处的局部放大图。
[0025] 其中， 驱动组件 10， 驱动电机 11， 驱动轴 12， 齿轮套 121， 传动结构 13， 第二 连接件 14, 连接台 141， 第一连接件 15 , 连接槽 151， 连接轴 16 , 齿轮件 161， 限 位件 162， 球形凹槽 163， 丝套筒 20， 第一内螺纹 21， 压缩件 22， 支撑杆 22&， 第 \¥0 2019/119397
4 一端 221， 抵接圆台 2211， 第二端 222， 端面 2221， 密封件 23， 限位槽 24， 伸缩 筒体 30， 腔体 31， 限位套环 32， 第一外螺纹 33， 保护套体 40， 密封圈 41。
发明实施例
本发明的实施方式
[0026] 为了使本发明的目的、 技术方案及优点更加清楚明白， 以下结合附图及实施例 ， 对本发明进行进一步详细说明。 应当理解， 此处所描述的具体实施例仅用以 解释本发明， 并不用于限定本发明。
[0027] 需说明的是， 当部件被称为“固定于”或“设置于”另一个部件， 它可以直接在另 一个部件上或者间接在该另一个部件上。 当一个部件被称为是“连接于”另一个部 件， 它可以是直接连接到另一个部件或者间接连接至该另一个部件上。
[0028] 还需说明的是， 本发明实施例的附图中相同或相似的标号对应相同或相似的部 件； 在本发明的描述中， 需要理解的是， 若有术语“上”、 “下”、 “左”、 “右”等指 示的方位或位置关系为基于附图所示的方位或位置关系， 仅是为了便于描述本 发明和简化描述， 而不是指示或暗示所指的装置或元件必须具有特定的方位、 以特定的方位构造和操作， 因此， 附图中描述位置关系的用语仅用于示例性说 明， 不能理解为对本专利的限制， 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的具体含义。
[0029] 此外， 术语“第一”、 “第二”仅用于描述目的， 而不能理解为指示或暗示相对重 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一个或者更多该特征。 在本发明的描述中， “多个”的 含义是两个或两个以上， 除非另有明确具体的限定。
[0030] 请参照附图 1至图 4所示， 在本发明实施例中， 提供一种新型电动推杆， 包括驱 动组件 10、 丝套筒 20和伸缩筒体 30， 以及压缩件 22。 该丝套筒 20连接在该驱动 组件 10的末端， 并且该丝套筒 20可以随着该驱动组件 10的驱动作用而转动， 该 伸缩筒体 30可以移动连接在该丝套筒 20内， 并且该伸缩筒体 30可以在该丝套筒 2 0自转时， 相对于该丝套筒 20伸缩移动， 进而可以将连接在该伸缩筒体 30端部的 结构向外推出或者缩回。 该压缩件 22限位连接在丝套筒 20内。 该丝套筒 20内形 成有内腔， 该内腔的腔壁上设有第一内螺纹 21， 该伸缩筒体 30伸缩移动在该内 \¥0 2019/119397
5 腔中， 并且该伸缩筒体 30的一端外侧面上还连接有可供与该丝套筒 20内壁上的 第一内螺纹 21配合的第一外螺纹 33 , 该伸缩筒体 30的另一端伸缩移动连接在该 丝套筒 20外。 此外， 该伸缩筒体 30内形成有一腔体 31， 该压缩件 22随该丝套筒 2 0转动而压缩或释放该腔体 31内的气体。 这样设计相对于传统的丝杆结构的驱动 ， 由于电动推杆本身需要将一定质量的物件支起， 进而对于该丝杆结构中丝杆 件的直径要求较高， 进而在传统的电动推杆由于丝杆件本身的原因难以缩小尺 寸， 进而适用范围受到影响， 同时产品的成本相对较高； 而本实施例中的结构 ， 将丝套筒 20内设置第一内螺纹 21， 该伸缩筒体 30外连接第一外螺纹 33 , 两者 之间相互配合支撑整个结构， 进而可以实现电动推杆更轻更细， 从而可以适应 更多的应用环境中去。
[0031] 以上设计的新型电动推杆， 通过将丝套筒 20连接在该驱动组件 10上， 进而丝套 筒 20可以随着该驱动组件 10的驱动而以其轴心线转动， 同时该丝套筒 20内壁上 设有第一内螺纹 21， 在该丝套筒 20转动时， 连接在该丝套筒 20内的伸缩筒体 30 通过第一外螺纹 33与该第一内螺纹 21配合并相对于该丝套筒 20移动； 此外， 该 丝套筒 20内限位连接有压缩件 22, 该压缩件 22在该伸缩筒体 30相对于该丝套筒 2 0移动时， 该压缩件 22可以压缩或者释放该伸缩筒体 30内腔体 31中的气体， 从而 使得该伸缩筒体 30与压缩件 22的配合可以取代传统的弹簧件， 并且将螺纹设置 在该丝套筒 20内， 可以保证在足够的配合强度要求下， 可以将丝套筒 20的直径 尽可能的减小， 进而可以有效利用空间， 同时节省材料成本。
[0032] 具体地， 如图 2所示， 在本发明实施例中， 该第一内螺纹 21沿该丝套筒 20的内 腔的内壁轴向方向上均匀布置。 这样设计可以保证该伸缩筒体 30时沿着该丝套 筒 20的轴向方向移动， 进而保证伸缩筒体 30的端部推拉物件时方向性更加的准 确。
[0033] 具体地， 如图 1和图 2所示， 在本发明实施例中， 该伸缩筒体 30上还固定连接有 限位套环 32, 该第一外螺纹 33形成于该限位套环 32上， 并且该丝套筒 20转动时 ， 该限位套环 32通过该第一外螺纹 33与该第一内螺纹 21连接， 使得该伸缩筒体 3 0沿该丝套筒 20的轴向方向上移动。
[0034] 在本实施例中， 该限位套环 32的宽度远小于该丝套筒 20的长度， 进而丝套筒 20 \¥0 2019/119397
6 转动时， 该伸缩筒体 30与该丝套筒 20之间的相对移动更加的顺畅， 进而使得电 动推杆的工作效率更高。 此外该限位套环 32优选为焊接或者其他固定连接的方 式固定于该伸缩筒体 30的外侧面上， 该第一外螺纹 33形成于该限位套环 32的外 侧面上， 并且该第一外螺纹 33与该第一内螺纹 21的螺纹尺寸相同， 且恰好匹配
[0035] 具体地， 在本发明的另一个实施例中， 该伸缩筒体 30的腔体 31内壁上还可以设 有第二内螺纹 （图未示） ， 同时该压缩件 22上连接有可供与该第二内螺纹配合 的第二外螺纹 （图未示） ， 该第二内螺纹沿该伸缩筒体 30的轴向方向延伸。 这 样设计使得该丝套筒 20转动时， 该压缩件 22同时转动， 进而第一外螺纹 33和第 一内螺纹 21配合实现该伸缩筒体 30相对于该丝套筒 20移动时， 该第二内螺纹和 该第二外螺纹配合辅助该伸缩筒体 30相对于该丝套筒 20移动， 并保证该伸缩筒 体 30伸出或缩回时对应位置的稳定性。
[0036] 具体地， 如图 2至图 4所示， 在本发明实施例中， 该压缩件 22为沿该丝套筒 20轴 线上延伸的支撑杆 22&， 该支撑杆 22&分为朝向该驱动组件 10的第一端 221和朝向 该伸缩筒体 30的第二端 222, 并且该第一端 221限位抵接在该丝套筒 20上， 该第 二端 222限位移动连接在该腔体 31内。 进而该丝套筒 20转动时， 该第二端 222限 位移动在该伸缩筒体 30的； 此处实质上该第二端 222的位置始终不动， 丝套筒 20 转动时， 且该伸缩筒体 30朝向该丝套筒 20移动时， 该第二端 222相当于朝向该伸 缩筒体 30内移动， 进而压缩该腔体 31内的空气， 保持整个电动推杆内部的稳定 性； 当丝套筒 20转动时， 且该伸缩筒体 30背离该丝套筒 20移动时， 该第二端 222 相当于朝向该伸缩筒体 3〇外移动， 进而释放被压缩该腔体 31内的空气， 产生反 弹的力， 进而使得电动推杆向外推出时更方便， 更轻松。
[0037] 具体地， 如图 2所示， 在本发明实施例中， 该伸缩筒体 30随该丝套筒 20的转动 沿该丝套筒 20的轴线方向移动。 这样设计可以保证该伸缩筒体 30和丝套筒 20之 间配合时整个结构的强度更好， 进而整个结构可以实现更轻和更小。
[0038] 具体地， 如图 1和图 2所示， 在本发明实施例中， 该腔体 31背离该丝套筒 20的一 端封闭， 另一端设有可供该支撑杆 22&的该第二端 222移动穿过的开孔， 该第二端 222的侧壁上还连接有可使得该腔体 31内形成密封空间的密封件 23。 这样设计可 \¥0 2019/119397
7 以使得伸缩筒体 30内的配合零件结构更少， 同时该支撑杆 22&的第二端 222相对于 该伸缩筒体 30的内腔移动时， 可以保证该腔体 31始终处于密封的状态， 这样可 以保证气体压缩和释放的效果更好； 而且结构也更加的简单。
[0039] 具体地， 如图 2和图 3所示， 在本发明实施例中， 该第二端 222的端部还向外延 伸有抵接圆台 2211， 该密封件 23套设在该支撑杆 22&上， 并且该密封件 23的一端 抵接在该抵接圆台 2211的侧壁上。 这样设计可以保证该密封在该第二端 222上连 接的稳定性， 以及该腔体 31内密封的可靠性。
[0040] 具体地， 如图 3所示， 在本发明实施例中， 该密封件 23的形状与该腔体 31的横 截面形状相同， 并且该密封件 23的外周面抵接在该腔体 31的内壁上。 这样设计 同样是保证该腔体 31内封闭空间的稳定性和持续性。
[0041] 具体地， 如图 1和图 2所示， 在本发明实施例中， 该驱动组件 10包括驱动电机 11 和限位连接在该丝套筒 20上的驱动轴 12和连接在该驱动电机 11和该驱动轴 12之 间的传动结构 13 , 该第一端 221的端部限位连接在该传动结构 13上。 这样设计可 以保证该支撑件在丝套筒 20内连接的稳定性。
[0042] 在本发明实施例中， 该传动结构 13包括限位套接在该驱动轴 12上的第一连接件 15、 与该驱动轴 12配合转动的连接轴 16和套设在该连接轴 16上并可供与该第一 连接件 15配合的第二连接件 14, 该第二连接件 14连接在该丝套筒 20的端部上。 进而该驱动电机 11驱动该驱动轴 12转动， 同时带动该第一连接件 15转动， 该连 接轴 16配合连接在该驱动轴 12上， 进而该连接轴 16随着转动， 进而带动第二连 接件 14转动， 也即带动丝套筒 20转动； 在这个过程该， 该第一连接件 15转动时 同时也可以带动该第二连接件 14转动； 这样设计可以保证该丝套筒 20转动的稳 定性。
[0043] 具体地， 如图 1和图 2所示， 在本发明实施例中， 该连接轴 16—端穿过该丝套筒 20的端面并限位连接在该丝套筒 20内， 该连接轴 16的另一端上连接有齿轮件 161 ， 该驱动轴 12朝向该连接轴 16的一端还设有可供与该齿轮件 161配合的齿轮套 12 1。 进而该驱动轴 12与该连接轴 16之间通过齿轮啮合传动， 进而保证传动的有效 性； 并且该连接轴 16的一端穿过该丝套筒 20的端面， 同时限位连接在该丝套筒 2 0内， 进而可以使得连接轴 16转动时同时带动该丝套筒 20转动。 \¥0 2019/119397
8
[0044] 具体地， 如图 1和图 2所示， 在本发明实施例中， 该连接轴 16位于该丝套筒 20内 的一端还纵向延伸形成有限位件 162, 该丝套筒 20内对应该限位件 162设有限位 槽 24, 该连接轴 16转动时该限位件 162连接在该限位槽 24内， 进而带动该丝套筒 20转动。 该限位件 162的端面上还设有球形凹槽 163 , 该第一端 221的端部抵接在 该球形凹槽 163内， 并且该第一端 221的端面 2221呈圆弧状或半球状。 这样设计 使得连接轴 16转动时， 该第一端 221与该球形凹槽 163之间的摩擦力更小。
[0045] 具体地， 如图 1和图 2所示， 在本发明实施例中， 该第一连接件 15上凹设有多个 连接槽 151， 该第二连接件 14的端面向外延伸有多个可供连接在该连接槽 151上 的连接台 141， 每一该连接台 141对应一个该连接槽 151。 这样设计可以使得该第 一连接件 15转动时同时可以带动该第二连接件 14转动， 进而带动该丝套筒 20转 动。
[0046] 具体地， 如图 1和图 2所示， 在本发明实施例中， 该新型电动推杆还包括套设在 该丝套筒 20和该驱动组件 10外侧的保护套体 40, 该保护套体 40贴合于该丝套筒 2 0和该驱动组件 10的外侧面。 这样设计使得该电动推杆的整个结构的封闭性更好 ， 外观更加的美观。
[0047] 在本实施例中， 该保护套体 40和该丝套筒 20之间还连接有密封圈 41， 这样设计 可以保证该保护套体 40内部结构的密封性。
[0048] 以上仅为本发明的优选实施例而已， 并不用于限制本发明。 对于本领域的技术 人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内， 所 作的任何修改、 等同替换、 改进等， 均应包含在本发明的权利要求范围之内。

Claims

\¥0 2019/119397 卩（：17 \2017/117922 9 权利要求书
[权利要求 1] 一种新型电动推杆， 其特征在于： 包括驱动组件、 连接在所述驱动组 件上的丝套筒和可相对移动连接在所述丝套筒上的伸缩筒体， 以及限 位连接在所述丝套筒内的压缩件， 所述伸缩筒体的一端外侧面上还连 接有可供与所述丝套筒内壁上的第一内螺纹配合的第一外螺纹， 另一 端可伸缩移动在所述丝套筒外， 所述伸缩筒体内形成有一腔体， 所述 压缩件随所述丝套筒转动而压缩或释放所述腔体内的气体。
[权利要求 2] 如权利要求 1所述的新型电动推杆， 其特征在于： 所述第一内螺纹沿 所述丝套筒的内壁轴向方向上均匀布置。
[权利要求 3] 如权利要求 1所述的新型电动推杆， 其特征在于： 所述伸缩筒体上还 固定连接有限位套环， 所述第一外螺纹形成于所述限位套环上， 且所 述丝套筒转动时， 所述限位套环通过所述第一外螺纹与所述第一内螺 纹连接， 使得所述伸缩筒体沿所述丝套筒的轴向方向上移动。
[权利要求 4] 如权利要求 1所述的新型电动推杆， 其特征在于： 所述伸缩筒体的腔 体内壁上设有第二内螺纹， 所述压缩件上连接有可供与所述第二内螺 纹配合的第二外螺纹， 所述第二内螺纹沿所述伸缩筒体的轴向方向延 伸。
[权利要求 5] 如权利要求 1所述的新型电动推杆， 其特征在于： 所述压缩件为沿所 述丝套筒轴线上延伸的支撑杆， 所述支撑杆分为朝向所述驱动组件的 第一端和朝向所述伸缩筒体的第二端， 且所述第一端限位抵接在所述 丝套筒上， 所述第二端限位移动连接在所述腔体内。
[权利要求 6] 如权利要求 5所述的新型电动推杆， 其特征在于： 所述伸缩筒体随所 述丝套筒的转动沿所述丝套筒的轴线方向移动。
[权利要求 7] 如权利要求 6所述的新型电动推杆， 其特征在于： 所述腔体背离所述 丝套筒的一端封闭， 另一端设有可供所述支撑杆的所述第二端移动穿 过的开孔， 所述第二端的侧壁上还连接有可使得所述腔体内形成密封 空间的密封件。
[权利要求 8] 如权利要求 7所述的新型电动推杆， 其特征在于： 所述第二端的端部 \¥0 2019/119397
10 还向外延伸有抵接圆台， 所述密封件套设在所述支撑杆上， 且所述密 封件的一端抵接在所述抵接圆台的侧壁上。
[权利要求 9] 如权利要求 7所述的新型电动推杆， 其特征在于： 所述密封件的形状 与所述腔体的横截面形状相同， 且所述密封件的外周面抵接在所述腔 体的内壁上。
[权利要求 10] 如权利要求 5所述的新型电动推杆， 其特征在于： 所述驱动组件包括 驱动电机和限位连接在所述丝套筒上的驱动轴和连接在所述驱动电机 和所述驱动轴之间的传动结构， 所述第一端的端部限位连接在所述传 动结构上。
[权利要求 11] 如权利要求 10所述的新型电动推杆， 其特征在于： 所述传动结构包括 限位套接在所述驱动轴上的第一连接件、 与所述驱动轴配合转动的连 接轴和套设在所述连接轴上并可供与所述第一连接件配合的第二连接 件， 所述第二连接件连接在所述丝套筒的端部上。
[权利要求 12] 如权利要求 11所述的新型电动推杆， 其特征在于： 所述连接轴一端穿 过所述丝套筒的端面并限位连接在所述丝套筒内， 所述连接轴的另一 端上连接有齿轮件， 所述驱动轴朝向所述连接轴的一端还设有可供与 所述齿轮件配合的齿轮套。
[权利要求 13] 如权利要求 12所述的新型电动推杆， 其特征在于： 所述连接轴位于所 述丝套筒内的一端还纵向延伸形成有限位件， 所述限位件的端面上还 设有球形凹槽， 所述第一端的端部抵接在所述球形凹槽内， 且所述第 一端的端面呈圆弧状。
[权利要求 14] 如权利要求 11所述的新型电动推杆， 其特征在于： 所述第一连接件上 凹设有多个连接槽， 所述第二连接件的端面向外延伸有多个可供连接 在所述连接槽上的连接台， 每一所述连接台对应一个所述连接槽。
[权利要求 15] 如权利要求 1-14任一项所述的新型电动推杆， 其特征在于： 所述新型 电动推杆还包括套设在所述丝套筒和所述驱动组件外侧的保护套体， 所述保护套体贴合于所述丝套筒和所述驱动组件的外侧面。
PCT/CN2017/117922 2017-12-22 2017-12-22 一种新型电动推杆 WO2019119397A1 (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1295172A (zh) * 1999-11-03 2001-05-16 盖慈有限公司 电动驱动装置
JP2001132810A (ja) * 1999-11-04 2001-05-18 Iai:Kk アクチュエータ
US6377010B1 (en) * 1999-11-03 2002-04-23 Dewert Antriebes- Und Systemtechnik Gmbh & Co. Kg Electromotive drive for a furniture item
US20050132830A1 (en) * 2003-11-26 2005-06-23 Dominique Gerbier Linear actuator
CN204559309U (zh) * 2015-05-08 2015-08-12 刘钊 机电直线驱动装置
CN207234601U (zh) * 2017-12-22 2018-04-13 李宏爽 一种新型电动推杆
CN108134479A (zh) * 2017-12-22 2018-06-08 李宏爽 一种新型电动推杆

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1295172A (zh) * 1999-11-03 2001-05-16 盖慈有限公司 电动驱动装置
US6377010B1 (en) * 1999-11-03 2002-04-23 Dewert Antriebes- Und Systemtechnik Gmbh & Co. Kg Electromotive drive for a furniture item
JP2001132810A (ja) * 1999-11-04 2001-05-18 Iai:Kk アクチュエータ
US20050132830A1 (en) * 2003-11-26 2005-06-23 Dominique Gerbier Linear actuator
CN204559309U (zh) * 2015-05-08 2015-08-12 刘钊 机电直线驱动装置
CN207234601U (zh) * 2017-12-22 2018-04-13 李宏爽 一种新型电动推杆
CN108134479A (zh) * 2017-12-22 2018-06-08 李宏爽 一种新型电动推杆

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