WO2020029331A1 - 一种电动家具用可调节式线性驱动器 - Google Patents

一种电动家具用可调节式线性驱动器 Download PDF

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Publication number
WO2020029331A1
WO2020029331A1 PCT/CN2018/101790 CN2018101790W WO2020029331A1 WO 2020029331 A1 WO2020029331 A1 WO 2020029331A1 CN 2018101790 W CN2018101790 W CN 2018101790W WO 2020029331 A1 WO2020029331 A1 WO 2020029331A1
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WO
WIPO (PCT)
Prior art keywords
screw
adjustment
limit bar
adjusting
linear
Prior art date
Application number
PCT/CN2018/101790
Other languages
English (en)
French (fr)
Inventor
赵玉树
宋璟
孔铭
Original Assignee
深圳市一么么科技有限公司
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Filing date
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Application filed by 深圳市一么么科技有限公司 filed Critical 深圳市一么么科技有限公司
Publication of WO2020029331A1 publication Critical patent/WO2020029331A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/86—Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds
    • 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
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters

Definitions

  • the invention discloses an electric furniture fitting, in particular an adjustable linear driver for electric furniture.
  • Electric furniture is the new darling of high-end furniture, such as electric sofas, electric beds, etc. Electric furniture can be adjusted by electric means, such as: seat back angle, tilt angle, height, etc., giving convenience and comfort to use It brings great improvement and is loved by people.
  • the adjustment function of electric furniture is realized by electric linear drive.
  • the electric linear drive drives the screw through the motor to adjust the set parameters of electric furniture.
  • the electric linear drive is equipped with a travel switch. When the set position is reached, the sliding part triggers the travel switch to control the motor to stop rotating.
  • the present invention provides an adjustable linear drive for electric furniture, which adopts a special structural design and can be easily Conveniently adjust the position of the travel switch, thereby making it convenient and quick to compensate for installation errors.
  • an adjustable linear driver for electric furniture the linear driver includes a linear driver body, an end cover, a limit bar and an adjusting nut, and an adjusting driving mechanism is arranged inside the linear driver body.
  • the end cap is fixedly installed at the end position of one end of the linear drive body.
  • a motor is installed on the linear drive body. The motor drives the adjustment drive mechanism for linear movement.
  • a limiter bar is installed in the linear drive body, and a first stroke is installed on the limiter bar. Switch.
  • An adjustment nut is set in the end cover. The adjustment nut can rotate freely in the end cover.
  • An adjustment screw is set in the limit bar.
  • the adjustment screw is relatively fixed with the limit bar.
  • the adjustment screw cannot be in the axial direction of the adjustment screw relative to the limit bar. During the movement, the relative limit bar cannot move radially along the adjusting screw, and the adjusting nut and the adjusting screw are installed together.
  • the adjusting driving mechanism includes a movable block and a screw.
  • a side of the linear drive body is provided with a strip through groove.
  • the movable block is provided on the screw.
  • the movable block is provided with internal threads.
  • the movable block is provided with a connection for electric furniture.
  • the protruding part or the screw hole for connecting with electric furniture, the motor drives the screw to rotate.
  • the adjusting driving mechanism includes a driving device and a screw.
  • the driving device is disposed inside the linear driver body.
  • a round hole is provided on the end cover for the driving device to protrude.
  • the driving part of the driving device protrudes from the circular hole.
  • An internal thread is provided for cooperating with the screw. The screw is inserted into the driving device, and the motor drives the screw to rotate.
  • the linear actuator main body is provided with a limiting strip mounting groove, and the limiting strip is inserted into the limiting strip mounting groove.
  • the adjusting driving mechanism is provided with a projection at a position corresponding to the position switch.
  • the projection can press the position switch to limit the position.
  • the adjustment screw is fixedly embedded in the limit bar, or an installation position is provided in the limit bar.
  • the adjustment screw is placed in the installation position, and the adjustment screw is limited by the installation position. On the one hand, it prevents The adjusting screw rotates relative to the limit bar, and on the other hand, prevents the adjusting screw from moving axially with respect to the limit bar along the adjusting screw.
  • An adjustment position is provided at the end of the adjustment nut, and the adjustment position adopts a "one" -shaped screw hole, a "ten” -shaped screw hole, an inner hexagonal screw hole or an outer hexagonal screw hole, or the end position of the adjustment nut corresponds to An adjustment notch is provided at each end of the diameter.
  • the limit bar is installed in the end of the linear drive body near the end cover, the limit bar in the linear drive body near the motor end is fixed with an auxiliary limit bar, and the second limit switch is installed on the auxiliary limit bar. ,
  • the limit bar and auxiliary limit bar are set separately.
  • a fixed cover is installed on the end cover.
  • the fixed cover is provided at a position corresponding to the adjustment nut on the end cover.
  • the fixed cover presses the adjustment nut.
  • the fixed cover is provided with a hole for the adjustment screw to extend.
  • the diameter of the hole is greater than Adjust the diameter of the screw.
  • the diameter of the hole is smaller than the diameter of the adjustment nut.
  • the fixed cover is provided with a handle which is convenient for removing the fixed cover.
  • the invention adopts a special structural design, which can simply and conveniently adjust the position of the travel switch, thereby conveniently and quickly compensating for installation errors, simple operation and convenient use.
  • FIG. 1 is a schematic diagram of a three-dimensional structure according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of an exploded state according to a first embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a three-dimensional structure of Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of an exploded state according to the second embodiment of the present invention.
  • This embodiment is a preferred embodiment of the present invention, and other principles and basic structures that are the same or similar to this embodiment are all within the protection scope of the present invention.
  • the present invention mainly includes a linear actuator body 1, an end cover 2, a limit bar 6, and an adjusting nut 9.
  • the linear actuator body 1 is made of a profile, and the linear actuator body 1 has a hollow structure.
  • the linear drive body 1 is equipped with a screw (the screw adopts a conventional structure, not shown in the figure).
  • the side of the linear drive body 1 is provided with a strip-shaped groove 3, and a movable block is provided on the screw. It is provided with an internal thread, which can move the movable block back and forth through the rotation of the screw.
  • the movable block is provided with an extension for connecting with electric furniture or a screw hole for connecting with electric furniture.
  • the hole is connected to the iron frame of the electric bed or electric sofa to drive the electric bed or electric sofa to adjust.
  • the end cover 2 is fixedly installed at the end position of one end of the linear drive body 1 and the end position of the other end of the linear drive body 1 is fixed.
  • a motor is installed (the motor has a conventional structure, not shown in the figure), and the motor drives the screw to rotate (in this embodiment, the motor drives the screw through a worm gear and a worm) Moving, when the particular embodiments may be employed other conventional drive mechanism).
  • the linear actuator main body 1 is provided with a limiting strip mounting groove 5, the limiting strip 6 is inserted into the limiting strip mounting groove 5, and a limit switch mounting position (not shown in the figure) is provided on the limiting strip 6.
  • the switch 7 is installed at the position of the travel switch.
  • the first travel switch 7 installed on the limit bar 6 is set in the screw installation position 4.
  • a bump is installed on the movable block corresponding to the position of the travel switch (not shown in the figure).
  • the convex block will press the first travel switch 7, and when the first travel switch 7 is pressed, it indicates that it moves to the corresponding position, and then stops.
  • an adjusting nut 9 is provided in the end cover 2, and the adjusting nut 9 can rotate freely in the end cover 2.
  • An adjusting screw 8 is provided in the limit bar 6, and the adjusting screw 8 and the limit bar 6 are relatively fixed and adjusted.
  • the screw 8 cannot be moved axially along the adjustment screw 8 relative to the limit bar 6 or radially along the adjustment screw 8 relative to the limit bar 6.
  • the adjustment nut 9 and the adjustment screw 8 are installed together. Turning the adjustment nut 9 enables adjustment The screw 8 drives the limit bar 6 to move back and forth, thereby pushing the limit bar 6 to slide back and forth.
  • the adjustment screw 8 is fixedly embedded in the limit bar 6, that is, when the limit bar 6 is injection-molded, that is, the adjustment screw 8 is directly injected into the limit bar 6, and the adjustment screw 8 is relative to the limit bar. 6 fixed.
  • an embedded position may also be provided in the limit bar 6, the adjusting screw 8 (a screw head is provided on the adjusting screw 8) is placed in the embedded position, and the adjusting screw 8 is limited by the embedded position.
  • the adjustment screw 8 is prevented from rotating relative to the limit bar 6, and on the other hand, the adjustment screw 8 is prevented from moving axially along the adjustment screw 8 relative to the limit bar 6.
  • the adjusting nut 9 is disposed in the end cover 2, so that the adjusting nut 9 can rotate freely relative to the end cover 2.
  • the front end of the adjusting nut 9 is a nut head 10.
  • an adjustment position is provided at the end of the nut head 10, and the adjustment position adopts a "I" -shaped screw hole, and the adjustment nut 9 can be conveniently adjusted by a "I" screwdriver.
  • the adjustment position is also You can use "T" screw holes, inner hexagon screw holes, outer hexagon screw holes, etc.
  • two ends of the corresponding diameter at the end of the adjusting nut 9 are respectively provided with an adjusting notch, which is convenient for adjusting with a fork-shaped 16 (similar to pants shape) tool 15 with two feet.
  • a plurality of installation positions of the travel switch are provided.
  • the travel switch may be installed at a set position as required.
  • a fixed cover 12 is installed on the end cover 2.
  • the fixed cover 12 is made of a soft material, such as silicone, rubber, etc.
  • the fixed cover 12 is provided at a position corresponding to the adjusting nut 9 on the end cover 2.
  • the fixing cover 12 presses the adjusting nut 9 to prevent the adjusting nut 9 from moving in the end cover 2 or coming out of the end cover 2.
  • the fixing cover 12 is provided with a hole for adjusting the screw 8 to protrude.
  • the diameter of the hole is larger than the diameter of the adjusting screw 8 and the diameter of the hole is smaller than the diameter of the adjusting nut 9 so that the adjusting screw 8 can protrude from the hole.
  • the cover 12 blocks the adjusting nut 9.
  • a handle is provided on the fixed cover 12 to facilitate the removal of the fixed cover 12.
  • the fixed cover 12 can be pried open with a tool to adjust the adjusting nut 9 for convenient use.
  • the limit bar 6 is installed in the end of the linear drive body 1 near the end cover 2 and the limit bar installation groove 5 in the linear drive body 1 near the motor end is fixed with an auxiliary limit bar 11 to assist in limiting the position.
  • the second travel switch 14 is also installed on the strip 11, so that the limit of the two ends of the movable block can be realized.
  • the limit strip 6 and the auxiliary limit strip 11 are separately set. When adjusting, only the limit strip 6 needs to be adjusted. can. In specific implementation, other structures may also be used to fix the second stroke switch 14 on the motor side.
  • Embodiment 2 Please refer to FIG. 3 and FIG. 4 in combination.
  • the linear actuator body 1 is made of a profile, linear
  • the driver body 1 has a hollow structure, and the adjustment driving mechanism is inserted into the linear driver body 1.
  • the adjustment driving mechanism uses a driving device 13 (in this embodiment, the driving device 13 includes a driving support rod and a movable block, and a movable block An internal thread corresponding to the screw is provided, and the driving support rod is installed corresponding to the movable block.
  • the driving part (ie, the driving support rod) of the driving device 13 can be used to drive the electric bed or electric sofa for adjustment.
  • the driving device 13 corresponds to the first
  • a travel switch 7 is provided with a bump (not shown)
  • the end cover 2 is fixedly installed at the end position of one end of the linear drive body 1, and a motor (motor is fixedly installed at the end position of the other end of the linear drive body 1).
  • the conventional structure (not shown in the figure) can be driven by a motor to rotate the screw.
  • the internal thread of the driving device 13 is provided, and the screw is inserted into the driving device 13 and communicates with the screw.
  • the screw is driven by the motor to rotate, and the driving device 13 is pushed and retracted by the screw to drive the electric bed or electric sofa for adjustment.
  • a round hole is provided on the end cover 2 for the driving device 13 to protrude.
  • the driving device 13 protrudes from the round hole and is connected to the electric bed or the electric sofa to adjust the electric bed or the electric sofa.
  • the adjusting mechanism and the limiting mechanism in this embodiment are the same as those in the first embodiment, and will not be repeated here.
  • the present invention When the present invention is used, it is installed in electric furniture. If the electric furniture shrinks or unfolds due to installation structural errors during use, the adjusting nut 9 can be rotated by an adjusting tool (such as a screwdriver, etc.). The adjusting screw 10 pushes the limit bar 6 so that the limit bar 6 drives the first travel switch 7 to move forward and backward, so that the final retracted or expanded position of the electric furniture can be adjusted to overcome structural errors and installation errors. If the stroke of the motor end is not contracted or expanded, the installation position of the entire linear driver can be adjusted, and then the final contracted or expanded position of the electric furniture can be adjusted.
  • an adjusting tool such as a screwdriver, etc.
  • the invention adopts a special structural design, which can simply and conveniently adjust the position of the travel switch, thereby conveniently and quickly compensating for installation errors, simple operation and convenient use.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
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Abstract

一种电动家具用可调节式线性驱动器，线性驱动器包括线性驱动器主体（1）、端盖（2）、限位条（6）和调节螺母（9），线性驱动器主体（1）内部设置有调节驱动机构，端盖（2）固定安装在线性驱动器主体（1）一端的端头位置处，线性驱动器主体（1）上固定安装电机，电机驱动调节驱动机构前后运动，线性驱动器主体（1）内安装有限位条（6），限位条（6）上安装有第一行程开关（7），端盖（2）内设置有调节螺母（9），调节螺母（9）能在端盖（2）内自由转动，限位条（6）内设置有调节螺杆（8），调节螺杆（8）与限位条（6）相对固定，调节螺杆（8）不能相对限位条（6）沿调节螺杆（8）轴向运动，也不能相对限位条（6）沿调节螺杆（8）径向运动，调节螺母（9）与调节螺杆（8）安装在一起。

Description

一种电动家具用可调节式线性驱动器 技术领域
本发明公开一种电动家具配件，特别是一种电动家具用可调节式线性驱动器。
 背景技术
电动家具是目前高档家具中的新宠，如电动沙发、电动床等，电动家具以其可以通过电动方式进行调节，如：座椅靠背角度、倾斜角度、高度等，给使用的方便性和舒适度带来很大改善，深受人们所喜爱。目前，电动家具的调节功能都是通过电动线性驱动器实现的，使用时，电动线性驱动器通过电机带动螺杆转动，从而对电动家具的设定参数进行调节，电动线性驱动器内设置有行程开关，当调节到设定位置时，滑动部件触发行程开关，控制电机停止转动。
现有技术中的电动家具大多采用钢架或木架结构，电动线性驱动器安装在钢架或木架上，电动家具在组装过程中，由于其不可避免的存在着设计误差，因此其不可能按照理论值进行装配，装配出来的成品或多或少的存在偏差，当采用电动线性驱动器进行调节时，就会造成调节不到位或者过度调节的问题。误差较小时，处于可接受范围内，不影响使用，如果误差较大，则需要将电动线性驱动器拆除，进行更换，费时费力。
 技术问题
针对上述提到的现有技术中的电动家具存在设计和装配误差，维修更换比较费时费力的缺点，本发明提供一种电动家具用可调节式线性驱动器，其采用特殊的结构设计，可简单、方便的调节行程开关的位置，从而，方便、快捷的弥补安装误差。
 技术解决方案
本发明解决其技术问题采用的技术方案是：一种电动家具用可调节式线性驱动器，线性驱动器包括线性驱动器主体、端盖、限位条和调节螺母，线性驱动器主体内部设置有调节驱动机构，端盖固定安装在线性驱动器主体一端的端头位置处，线性驱动器主体上安装有电机，电机驱动调节驱动机构做线性运动，线性驱动器主体内安装有限位条，限位条上安装有第一行程开关，端盖内设置有调节螺母，调节螺母能在端盖内自由转动，限位条内设置有调节螺杆，调节螺杆与限位条相对固定，调节螺杆不能相对限位条沿调节螺杆轴向运动，也不能相对限位条沿调节螺杆径向运动，调节螺母与调节螺杆安装在一起。
本发明解决其技术问题采用的技术方案进一步还包括：
所述的调节驱动机构包括活动块和螺杆，线性驱动器主体侧面开设有条形通槽，活动块设置在螺杆上，活动块上设置有内螺纹，活动块上设有用于与电动家具相连接的伸出部分或用于与电动家具相连接的螺丝孔，电机驱动螺杆转动。
所述的调节驱动机构包括驱动装置和螺杆，驱动装置设置在线性驱动器主体内部，端盖上开设有供驱动装置伸出的圆孔，驱动装置的驱动部分从圆孔处伸出，驱动装置内设置有用于与螺杆配合的内螺纹，螺杆插装在驱动装置内，电机驱动螺杆转动。
所述的线性驱动器主体内设置有限位条安装槽，限位条插装在限位条安装槽内。
所述的调节驱动机构上对应于行程开关位置处安装有凸块，当凸块运行到行程开关位置处，凸块能够压住行程开关，进行限位。
所述的调节螺杆固定嵌装在限位条内，或者在限位条内设置有嵌装位，调节螺杆放置在嵌装位内，通过嵌装位对调节螺杆进行限位，一方面，防止调节螺杆相对于限位条转动，另一方面，防止调节螺杆相对于限位条沿调节螺杆轴向运动。
所述的调节螺母的端头处设置有调节位，调节位采用“一”字形螺丝孔、“十”字形螺丝孔、内六方螺丝孔或外六方螺丝孔，或者调节螺母的端头位置处对应直径的两端分别设置有一个调节缺口。
所述的限位条安装在线性驱动器主体内靠近端盖一端，线性驱动器主体内靠近电机一端的限位条安装槽内固定安装有辅助限位条，辅助限位条上安装有第二行程开关，限位条和辅助限位条分体设置。
所述的端盖上安装有固定盖，固定盖对应于端盖上的调节螺母位置处设置，固定盖压紧调节螺母，固定盖上开设有用于方便调节螺杆伸出的孔，孔的直径大于调节螺杆的直径，孔的直径小于调节螺母的直径。
所述的固定盖与端盖上安装调节螺母的通孔之间为过盈配合。
所述的固定盖上设有便于取出固定盖的手柄。
 有益效果
本发明采用特殊的结构设计，可简单、方便的调节行程开关的位置，从而，方便、快捷的弥补安装误差，操作简单，使用方便。
 附图说明
图1为本发明实施例一立体结构示意图。
图2为本发明实施例一分解状态结构示意图。
图3为本发明实施例二立体结构示意图。
图4为本发明实施例二分解状态结构示意图。
图中，1-线性驱动器主体，2-端盖，3-条形通槽，4-螺杆安装位，5-限位条安装槽，6-限位条，7-第一行程开关，8-调节螺杆，9-调节螺母，10-螺母头，11-辅助限位条，12-固定盖，13-驱动装置，14-第二行程开关，15-调节工具，16-叉形工具头。
 本发明的最佳实施方式
[0007] 本实施例为本发明优选实施方式，其他凡其原理和基本结构与本实施例相同或近似的，均在本发明保护范围之内。
请结合参看附图1和附图2，本发明主要包括线性驱动器主体1、端盖2、限位条6和调节螺母9，线性驱动器主体1采用型材制成，线性驱动器主体1呈中空结构，为螺杆安装位4，线性驱动器主体1内部装有螺杆（螺杆采用常规结构，图中未画出），线性驱动器主体1侧面开设有条形通槽3，螺杆上设置有活动块，活动块上设置有内螺纹，通过螺杆转动可带动活动块来回运动，活动块上设有用于与电动家具相连接的伸出部分或用于与电动家具相连接的螺丝孔，通过活动块伸出部分或螺丝孔与电动床或电动沙发的铁架连接，带动电动床或电动沙发进行调节，端盖2固定安装在线性驱动器主体1一端的端头位置处，线性驱动器主体1另一端的端头位置处固定安装有电机（电机采用常规结构，图中未画出），电机驱动螺杆转动（本实施例中，电机通过蜗轮、蜗杆驱动螺杆转动，具体实施时，也可以采用其他常用驱动结构）。线性驱动器主体1内设置有限位条安装槽5，限位条6插装在限位条安装槽5内，限位条6上设有行程开关安装位（图中未示出），第一行程开关7安装在行程开关安装位处，限位条6上安装的第一行程开关7设置在螺杆安装位4内，活动块上对应于行程开关位置处安装有凸块（图中未画出），当凸块随着活动块来回滑动时，凸块会压迫第一行程开关7，当第一行程开关7被压迫时，说明其运动到相应的位置，则停止运动。本实施例中，端盖2内设置有调节螺母9，调节螺母9可在端盖2内自由转动，限位条6内设置有调节螺杆8，调节螺杆8与限位条6相对固定，调节螺杆8不可相对限位条6沿调节螺杆8轴向运动，也不可相对限位条6沿调节螺杆8径向运动，调节螺母9与调节螺杆8安装在一起，转动调节螺母9，可使调节螺杆8带动限位条6来回运动，从而推动限位条6来回滑动。
本实施例中，调节螺杆8固定嵌装在限位条6内，即在限位条6注塑加工时，即将调节螺杆8直接注塑在限位条6内，则调节螺杆8相对于限位条6固定。具体实施时，也可以在限位条6内设置有嵌装位，将调节螺杆8（调节螺杆8上设置有螺杆头）放置在嵌装位内，通过嵌装位对调节螺杆8进行限位，一方面，防止调节螺杆8相对于限位条6转动，另一方面，防止调节螺杆8相对于限位条6沿调节螺杆8轴向运动。
本实施例中，调节螺母9设置在端盖2内，可使调节螺母9相对于端盖2自由转动。本实施例中，调节螺母9前端为螺母头10。本实施例中，螺母头10端头处设置有调节位，调节位采用“一”字形螺丝孔，可方便的通过“一”字螺丝刀对调节螺母9进行转动调节，具体实施时，调节位也可以采用“十”字形螺丝孔或内六方螺丝孔、外六方螺丝孔等。或调节螺母9的端头位置处对应直径的两端分别设置有一个调节缺口，便于使用带两个脚的叉形16（类似于裤衩形状）工具15进行调节。
本实施例中，行程开关安装位设置有多个，具体实施时，可根据需要在设定位置安装行程开关。
本实施例中，在端盖2上安装有固定盖12，固定盖12采用软性材料制成，如：硅胶、橡胶等，固定盖12对应于端盖2上的调节螺母9位置处设置，固定盖12压紧调节螺母9，防止调节螺母9在端盖2内移动或从端盖2内脱出。固定盖12上开设有用于调节螺杆8伸出的孔，孔的直径大于调节螺杆8的直径，孔的直径小于调节螺母9的直径，可使调节螺杆8从孔处伸出，而可通过固定盖12挡住调节螺母9。固定盖12与端盖2上安装调节螺母9的通孔之间为过盈配合，使固定盖12不易掉落，同时压紧调节螺母9，防止调节螺母9在端盖2内移动或从端盖2内脱出。
本实施例中，固定盖12上设有便于取出固定盖12的手柄，可在调节时，采用工具撬开固定盖12，对调节螺母9进行调节，方便使用。
本实施例中，限位条6安装在线性驱动器主体1内靠近端盖2一端，线性驱动器主体1内靠近电机一端的限位条安装槽5内固定安装有辅助限位条11，辅助限位条11上也安装有第二行程开关14，从而可实现，对活动块运行两端的限位，限位条6和辅助限位条11分体设置，调节时，仅需调节限位条6即可。具体实施时，也可以采用其他结构将电机端的第二行程开关14进行固定。
实施例二：请结合参看附图3和附图4，本实施例中，主要包括线性驱动器主体1、端盖2、限位条6和调节螺母9，线性驱动器主体1采用型材制成，线性驱动器主体1呈中空结构，调节驱动机构插装在线性驱动器主体1内，本实施例中，调节驱动机构采用驱动装置13（本实施例中，驱动装置13包括驱动支撑杆和活动块，活动块上设置有与螺杆对应的内螺纹，驱动支撑杆与活动块对应安装），可通过驱动装置13的驱动部分（即驱动支撑杆）带动电动床或电动沙发进行调节，驱动装置13上对应于第一行程开关7设置有凸块（图中未画出），端盖2固定安装在线性驱动器主体1一端的端头位置处，线性驱动器主体1另一端的端头位置处固定安装有电机（电机采用常规结构，图中未画出），可通过电机驱动螺杆转动，驱动装置13内设置有内螺纹，螺杆插装在驱动装置13内，通过电机驱动螺杆转动，通过螺杆推动驱动装置13做伸缩运动，从而带动电动床或电动沙发进行调节。本实施例中端盖2上开设有供驱动装置13伸出的圆孔，驱动装置13从圆孔处伸出，与电动床或电动沙发连接，对电动床或电动沙发进行调节。
本实施例中的调节机构和限位机构与实施例一中相同，此处不再赘述。
本发明在使用时，将其安装在电动家具中，如果使用过程中，由于安装结构误差造成电动家具收缩或展开不到位的情况，可以通过调节工具（如：螺丝刀等）转动调节螺母9，通过调节螺杆10推动限位条6，使限位条6带动第一行程开关7前后运动，从而可调节电动家具最终收缩或展开的位置，以克服结构误差和安装误差等。如果是电机端的行程收缩或展开不到位，可调节整条线性驱动器的安装位置，进而调节电动家具最终收缩或展开的位置。
本发明采用特殊的结构设计，可简单、方便的调节行程开关的位置，从而，方便、快捷的弥补安装误差，操作简单，使用方便。

Claims (11)

  1. 一种电动家具用可调节式线性驱动器，其特征是：所述的线性驱动器包括线性驱动器主体、端盖、限位条和调节螺母，线性驱动器主体内部设置有调节驱动机构，端盖固定安装在线性驱动器主体一端的端头位置处，线性驱动器主体上安装有电机，电机驱动调节驱动机构做线性运动，线性驱动器主体内安装有限位条，限位条上安装有第一行程开关，端盖内设置有调节螺母，调节螺母能在端盖内自由转动，限位条内设置有调节螺杆，调节螺杆与限位条相对固定，调节螺杆不能相对限位条沿调节螺杆轴向运动，也不能相对限位条沿调节螺杆径向运动，调节螺母与调节螺杆安装在一起。
  2. 根据权利要求1所述的电动家具用可调节式线性驱动器，其特征是：所述的调节驱动机构包括活动块和螺杆，线性驱动器主体侧面开设有条形通槽，活动块设置在螺杆上，活动块上设置有内螺纹，活动块上设有用于与电动家具相连接的伸出部分或用于与电动家具相连接的螺丝孔，电机驱动螺杆转动。
  3. 根据权利要求1所述的电动家具用可调节式线性驱动器，其特征是：所述的调节驱动机构包括驱动装置和螺杆，驱动装置设置在线性驱动器主体内部，端盖上开设有供驱动装置伸出的圆孔，驱动装置的驱动部分从圆孔处伸出，驱动装置内设置有用于与螺杆配合的内螺纹，螺杆插装在驱动装置内，电机驱动螺杆转动。
  4. 根据权利要求1或2或3所述的电动家具用可调节式线性驱动器，其特征是：所述的线性驱动器主体内设置有限位条安装槽，限位条插装在限位条安装槽内。
  5. 根据权利要求1或2或3所述的电动家具用可调节式线性驱动器，其特征是：所述的调节驱动机构上对应于行程开关位置处安装有凸块，当凸块运行到行程开关位置处，凸块能够压住行程开关，进行限位。
  6. 根据权利要求1或2或3所述的电动家具用可调节式线性驱动器，其特征是：所述的调节螺杆固定嵌装在限位条内，或者在限位条内设置有嵌装位，调节螺杆放置在嵌装位内，通过嵌装位对调节螺杆进行限位，一方面，防止调节螺杆相对于限位条转动，另一方面，防止调节螺杆相对于限位条沿调节螺杆轴向运动。
  7. 根据权利要求1或2或3所述的电动家具用可调节式线性驱动器，其特征是：所述的调节螺母的端头处设置有调节位，调节位采用“一”字形螺丝孔、“十”字形螺丝孔、内六方螺丝孔或外六方螺丝孔，或者调节螺母的端头位置处对应直径的两端分别设置有一个调节缺口。
  8. 根据权利要求1或2或3所述的电动家具用可调节式线性驱动器，其特征是：所述的限位条安装在线性驱动器主体内靠近端盖一端，线性驱动器主体内靠近电机一端的限位条安装槽内固定安装有辅助限位条，辅助限位条上安装有第二行程开关，限位条和辅助限位条分体设置。
  9. 根据权利要求1或2或3所述的电动家具用可调节式线性驱动器，其特征是：所述的端盖上安装有固定盖，固定盖对应于端盖上的调节螺母位置处设置，固定盖压紧调节螺母，固定盖上开设有用于方便调节螺杆伸出的孔，孔的直径大于调节螺杆的直径，孔的直径小于调节螺母的直径。
  10. 根据权利要求9所述的电动家具用可调节式线性驱动器，其特征是：所述的固定盖与端盖上安装调节螺母的通孔之间为过盈配合。
  11. 根据权利要求9所述的电动家具用可调节式线性驱动器，其特征是：所述的固定盖上设有便于取出固定盖的手柄。
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