WO2021110003A1 - 一种升降立柱 - Google Patents

一种升降立柱 Download PDF

Info

Publication number
WO2021110003A1
WO2021110003A1 PCT/CN2020/133178 CN2020133178W WO2021110003A1 WO 2021110003 A1 WO2021110003 A1 WO 2021110003A1 CN 2020133178 W CN2020133178 W CN 2020133178W WO 2021110003 A1 WO2021110003 A1 WO 2021110003A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw rod
tube
guide sleeve
nut
screw
Prior art date
Application number
PCT/CN2020/133178
Other languages
English (en)
French (fr)
Inventor
胡仁昌
陆小健
潘坚
Original Assignee
浙江捷昌线性驱动科技股份有限公司
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 浙江捷昌线性驱动科技股份有限公司 filed Critical 浙江捷昌线性驱动科技股份有限公司
Publication of WO2021110003A1 publication Critical patent/WO2021110003A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
    • B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0497—Screw mechanisms

Definitions

  • the invention relates to the technical field of a lifting column, in particular to a lifting column with a low installation distance.
  • the outer wall of the first guide sleeve is matched with the inner wall of the second screw rod
  • the outer wall of the second guide sleeve is matched with the inner wall of the third screw rod
  • the outer wall of the third guide sleeve is matched with the inner wall of the first pipe.
  • a positioning groove is provided in the circumferential direction of the third screw rod, and the third guide sleeve is rotatably provided on the positioning groove.
  • first guide sleeve and the first screw are fixedly connected by screws
  • second guide sleeve and the second screw are fixedly connected by screws
  • a self-locking device is sleeved on the lower end of the first screw rod, and the self-locking device includes a torsion spring seat and a torsion spring sleeved on the torsion spring seat.
  • the third nut and the first tube are fixed by riveting.
  • the lifting pipes are all square pipes.
  • the present invention has the following advantages:
  • the lifting pipe includes the first pipe, the second pipe, the third pipe and the fourth pipe which are set in sequence from the inside to the outside.
  • the installation distance of each section of the lifting pipe can be reduced, so that the installation distance Lower, the first screw rod, the second screw rod, the third screw rod and the first pipe are connected by threaded transmission, and the nut is installed on the adjacent screw rods, located between the two adjacent screw rods, no need
  • a device for fixing nuts is provided to make the axial and radial directions of the transmission assembly more compact, further reduce the installation distance of the lifting column, and realize the low installation distance and large stroke of the lifting column.
  • the axial positions of the first nut, the second nut and the third nut are respectively restricted, so that the axial movement distance of each nut is restricted, namely The axial position of each screw is restricted.
  • the transmission of the first guide sleeve is relatively stable when it moves in the second screw rod, so that the overall lifting is relatively stable; for the same reason, by setting The second guide sleeve is matched with the inner wall of the third screw rod, and the third guide sleeve is matched with the inner wall of the first pipe, so that the transmission during the whole lifting process is relatively stable.
  • the third guide sleeve is rotatably arranged in the positioning groove, so that the axial position of the third guide sleeve and the third screw rod is fixed, and the circumferential direction can be freely rotated , Thereby enabling relative rotation between the third screw rod and the first tube.
  • the first guide sleeve and the first screw rod are fixedly connected by screws, and the second guide sleeve and the second screw rod are fixedly connected by screws, so that the disassembly and assembly of the first guide sleeve and the second guide sleeve are more convenient. Self-locking and reliable connection.
  • the torsion spring seat restricts the axial position of the torsion spring.
  • the torsion spring restricts the rotation of the first screw rod and acts as a self-locking function. Make the use of the transmission assembly more reliable.
  • FIG. 1 is a schematic diagram of the structure of the lifting column according to the first embodiment of the present invention.
  • Fig. 2 is a partial structural diagram of the lifting column according to the first embodiment of the present invention.
  • Fig. 3 is a cross-sectional view of the lifting column according to the first embodiment of the present invention.
  • Fig. 4 is an enlarged view of A in Fig. 3.
  • Fig. 5 is an enlarged view of B in Fig. 3.
  • FIG. 6 is a schematic diagram of the cooperation between the third screw rod and the third guide sleeve in the lifting column according to the first embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the structure of the lifting column according to the second embodiment of the present invention.
  • Fig. 8 is a partial structural diagram of the lifting column according to the second embodiment of the present invention.
  • Driving device lifting tube; 210, first tube; 211, third nut; 220, second tube; 230, third tube; 240, fourth tube; 300, transmission assembly; 310, first Screw; 311, first guide sleeve; 312, torsion spring; 313, torsion spring seat; 320, second screw; 321, first nut; 322, second guide sleeve; 330, third screw; 331, Second nut; 332, third guide sleeve; 3321, opening; 333, positioning groove; 400, first slider; 500, second slider; 600, third slider; 800, oil groove.
  • the present invention provides a lifting column with a low installation distance, which includes a driving device 100, a lifting pipe 200, and a transmission assembly 300 located inside the lifting pipe 200.
  • the lower end of 250 is fixed to the driving device 100, the driving device is located at the lower end of the lifting column, the upper end of the first pipe 210 is fixed on the lifting platform, the lifting column is in an upside-down state, and the transmission assembly 300 includes first The screw rod 310, the hollow second screw rod 320, and the hollow third screw rod 330.
  • the output end of the driving device 100 is in transmission cooperation with the first screw rod 310 and can drive the first screw rod 310 to rotate.
  • the lower end is provided with a first nut 321 which is screw-drivingly connected with the first screw 310
  • the lower end of the third screw 330 is provided with a second nut 331 which is screw-drivingly connected with the second screw 320
  • the lower end of the first pipe 210 is provided with The third nut 211 is threadedly connected to the third screw 330.
  • the first screw, the second screw, the third screw and the first pipe are connected by a threaded transmission, and the nut is installed on the adjacent screw , Located between two adjacent screw rods, no additional fixing nut device is required, making the transmission assembly more compact in the axial and radial directions, further reducing the installation distance of the lifting column, and realizing the low installation distance and large stroke of the lifting column .
  • the outer wall of the first guide sleeve 311 is matched with the inner wall of the second screw rod 320, so that when the first guide sleeve 311 moves in the second screw rod 320, the transmission is relatively stable; the outer wall of the second guide sleeve 322 and the third screw rod
  • the inner walls of 330 cooperate to make the transmission of the second guide sleeve 322 move in the third screw rod 330 relatively smooth;
  • the lifting pipes 200 are all square pipes, which can limit the rotation between adjacent lifting pipes.
  • the lifting operation process of the lifting column is as follows: the output end of the driving device 100 drives the first screw rod 310 to rotate, because the third nut 211 is fixed on the first tube 210 and cannot be rotated, and the thread helix angle of the first nut 321 is the largest. Therefore, the first nut 321 moves upward along the first screw rod 310 and drives the remaining screw rods to move upward as a whole. At this time, the first guide sleeve 311 rotates and translates in the second screw rod 320 to ensure the stability of the overall movement; When a nut 321 contacts the first guide sleeve 311, the axial movement of the first screw rod 310 stops, and the second screw rod 320 rotates with the first screw rod 310.
  • the helix angle of the second nut 331 is at the second The nut 331 and the third nut 211 are the largest, and the second nut 331 starts to move upward along the second screw rod 320.
  • the second guide sleeve 322 rotates and translates in the third screw rod 330 to ensure the smooth movement of the whole;
  • the second nut 331 contacts the second guide sleeve 322 the axial movement of the second screw rod 320 stops, and the third screw rod 330 rotates following the first screw rod 310 and the second screw rod 320.
  • the third nut 221 Start to move upward along the third screw rod 330.
  • the third guide sleeve 332 is translated in the first tube 210 to ensure the smooth movement of the whole.
  • the transmission assembly When the stroke reaches the maximum, when the second screw rod 320, the third screw rod 330, and the first tube 210 move upward, the second tube 220, the third tube 230 and the fourth tube 240 are driven to move upward to realize the ascent of the lifting column.
  • the first screw 310 rotates, the first nut 321 first moves downward along the first screw 310, and then the second nut 331 moves downward along the second screw 320, and the second nut 331 moves downward along the second screw 320 in turn.
  • the three nuts 341 move down along the third screw rod 330.
  • the second screw rod 320, the third screw rod 330 and the first tube 210 move down, they drive the second tube 220, the third tube 230 and the fourth tube 240 Move down to realize the lowering of the lifting column.
  • a first sliding block 400 is arranged between the first tube 210 and the second tube 220, the first sliding block 400 is fixed to the lower end of the first tube 210, and a second sliding block is arranged between the second tube 220 and the third tube 230 500, the second sliding block 500 is fixed to the lower end of the second tube 220, a third sliding block 600 is provided between the third tube 230 and the fourth tube 240, and the third sliding block 600 is fixed to the lower end of the third tube 230.
  • the upper ends of the second tube, the third tube and the fourth tube are all provided with static sliders.
  • the upper limit of the second tube 220 is achieved by the second slider contacting the static slider on the third tube.
  • the upper limit of the third tube 230 is It is realized by the third sliding block contacting the static sliding block on the fourth tube.
  • Both the second screw rod 320 and the third screw rod 330 are provided with an oil groove 800 on the inner wall.
  • the oil groove 800 is arranged along the axial direction of the screw rod. The arrangement of the oil groove is convenient for the processing of the second screw rod and the third screw rod. At the same time, the oil groove can be stored Grease, thereby reducing the friction between the first guide sleeve and the second screw rod, and the friction between the second guide sleeve and the third screw rod.

Abstract

一种升降立柱，包括驱动装置（100）、升降管（200）及传动总成，升降管（200）包括第一管（210）、第二管（220）、第三管（230）和第四管（240），第四管（240）的下端固定于驱动装置（100）上，传动总成包括由内向外依次套装的第一丝杆（310）、中空的第二丝杆（320）和中空的第三丝杆（330），驱动装置（100）的输出端与第一丝杆（310）传动配合且可驱动第一丝杆（310）旋转，第二丝杆（320）的下端设有与第一丝杆（310）螺纹传动连接的第一螺母（321），第三丝杆（330）的下端设有与第二丝杆（320）螺纹传动连接的第二螺母（331），第一管（210）的下端设有与第三丝杆（330）螺纹传动连接的第三螺母（211），相邻丝杆之间通过螺纹传动连接，且螺母位于相邻两个丝杆之间，无需另外设置固定螺母的装置，使得传动总成的轴向和径向都更加紧凑，进一步降低升降立柱的安装距，实现升降立柱的低安装距大行程。

Description

一种升降立柱 技术领域
本发明涉及升降立柱技术领域，尤其涉及一种低安装距的升降立柱。
背景技术
升降立柱因高度可调、搬运方便的优点在日常生活中得到了广泛的应用，升降立柱的安装距指的是升降立柱处于收缩状态时的高度，目前市面上的升降立柱一般为两节式升降管或三节式升降管，为满足较长的行程，升降立柱的安装距都较大，使得升降立柱处于收缩状态时高度依然较高，搬运仍然不够便利。
发明内容
本发明的目的在于提供一种低安装距的升降立柱。
为了达到上述目的，本发明采用如下技术方案：一种升降立柱，包括驱动装置、升降管及位于升降管内部的传动总成，升降管包括由内向外依次套装的第一管、第二管、第三管和第四管，第四管的下端固定于驱动装置上，传动总成包括由内向外依次套装的第一丝杆、中空的第二丝杆和中空的第三丝杆，驱动装置的输出端与第一丝杆传动配合且可驱动第一丝杆旋转，第二丝杆的下端设有与第一丝杆螺纹传动连接的第一螺母，第三丝杆的下端设有与第二丝杆螺纹传动连接的第二螺母，第一管的下端设有与第三丝杆螺纹传动连接的第三螺母。
进一步的，所述第一丝杆的上端设有限制第一螺母轴向位置的第一导向套，第二丝杆的上端设有限制第二螺母轴向位置的第二导向套，第三丝杆的上端设有限制第三螺母轴向位置的第三导向套。
进一步的，所述第一导向套的外壁与第二丝杆的内壁相配合，第二导向套的外壁与第三丝杆的内壁相配合，第三导向套的外壁与第一管的内壁相配合。
进一步的，所述第三丝杆的周向上设有定位槽，第三导向套可转动地设于定位槽上。
进一步的，所述第三导向套上设有便于第三导向套径向压入定位槽的开口。
进一步的，所述第一导向套与第一丝杆通过螺钉固定连接，第二导向套与第二丝杆通过螺钉固定连接。
进一步的，所述第二丝杆和第三丝杆的内壁上均设有油槽，油槽沿丝杆的轴向设置。
进一步的，所述第一丝杆的下端套设有自锁装置，自锁装置包括扭簧座和套设于扭簧座上的扭簧。
进一步的，所述第三螺母与第一管通过铆接固定。
进一步的，所述升降管均为方形管。
采用上述技术方案后，本发明具有如下优点：
1、升降管包括由内向外依次套装的第一管、第二管、第三管和第四管，通过将升降立柱设置成四节，可以减小每节升降管的安装距，使得安装距较低，第一丝杆、第二丝杆、第三丝杆和第一管之间通过螺纹传动连接，且螺母安装在相邻的丝杆上，位于相邻两个丝杆之间，无需另外设置固定螺母的装置，使得传动总成的轴向和径向都更加紧凑，进一步降低升降立柱的安装距，实现升降立柱的低安装距大行程。
2、通过设置第一导向套、第二导向套和第三导向套，分别限制第一螺母、第二螺母和第三螺母的轴向位置，使得每个螺母的轴向移动距离受到限制，即每个丝杆的轴向位置受到限制。
3、通过设置第一导向套的外壁与第二丝杆的内壁相配合，使得第一导向套在第二丝杆内移动时，传动比较平稳，使得整体的升降比较平稳；同理，通过 设置第二导向套与第三丝杆的内壁相配合，第三导向套与第一管的内壁相配合，使得整个升降过程中的传动都比较平稳。
4、通过在第三丝杆的周向上设置定位槽，第三导向套可转动地设置在定位槽内，使得第三导向套与第三丝杆的轴向位置固定，周向方向可自由转动，进而使得第三丝杆与第一管之间可以发生相对转动。
5、通过在第三导向套上设置开口，第三导向套通过开口径向压入定位槽内，使得第三导向套的安装更加方便。
6、第一导向套与第一丝杆通过螺钉固定连接，第二导向套与第二丝杆通过螺钉固定连接，使得第一导向套和第二导向套的拆装比较方便，同时因螺纹具有自锁性，连接比较可靠。
7、第二丝杆和第三丝杆的内壁上均设置有油槽，油槽沿丝杆的轴向设置，方便第二丝杆和第三丝杆的加工，同时油槽可存储油脂，进而减小第一导向套与第二丝杆之间的摩擦力、第二导向套与第三丝杆之间的摩擦力。
8、通过设置扭簧座和扭簧，扭簧座限制扭簧的轴向位置，在传动总成受力有收缩趋势时，扭簧限制第一丝杆的转动，起到自锁的作用，使得传动总成的使用更加可靠。
9、第三螺母通过铆接固定在第一管上，使得第三螺母无法周向转动，且铆接工艺简单且连接可靠。
附图说明
下面结合附图对本发明作进一步说明：
图1为本发明实施例一所述升降立柱的结构示意图。
图2为本发明实施例一所述升降立柱的部分结构示意图。
图3为本发明实施例一所述升降立柱的剖视图。
图4为图3中A处的放大图。
图5为图3中B处的放大图。
图6为本发明实施例一所述升降立柱中第三丝杆与第三导向套的配合示意图。
图7为本发明实施例二所述升降立柱的结构示意图。
图8为本发明实施例二所述升降立柱的部分结构示意图。
图中所标各部件名称如下：
100、驱动装置；200、升降管；210、第一管；211、第三螺母；220、第二管；230、第三管；240、第四管；300、传动总成；310、第一丝杆；311、第一导向套；312、扭簧；313、扭簧座；320、第二丝杆；321、第一螺母；322、第二导向套；330、第三丝杆；331、第二螺母；332、第三导向套；3321、开口；333、定位槽；400、第一滑块；500、第二滑块；600、第三滑块；800、油槽。
具体实施方式
下面结合附图和具体实施例对本发明作进一步说明。需要理解的是，下述的“上”、“下”、“左”、“右”、“纵向”、“横向”、“内”、“外”、“竖直”、“水平”、“顶”、“底”等指示方位或位置关系的词语仅基于附图所示的方位或位置关系，仅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/元件必须具有特定的方位或以特定的方位构造和操作，因此不能理解为对本发明的限制。
实施例一：
如图1至图4所示，本发明提供一种低安装距的升降立柱，包括驱动装置100、升降管200及位于升降管200内部的传动总成300，升降管200包括由内向外依次套装的第一管210、第二管220、第三管230和第四管240，通过将升降立柱设置成四节，可以减小每节升降管的安装距，使得安装距较低，第四管 250的下端固定于驱动装置100上，驱动装置位于升降立柱的下端，第一管210的上端固定于升降平台上，升降立柱处于倒装状态，传动总成300包括由内向外依次套装的第一丝杆310、中空的第二丝杆320和中空的第三丝杆330，驱动装置100的输出端与第一丝杆310传动配合且可驱动第一丝杆310旋转，第二丝杆320的下端设有与第一丝杆310螺纹传动连接的第一螺母321，第三丝杆330的下端设有与第二丝杆320螺纹传动连接的第二螺母331，第一管210的下端设有与第三丝杆330螺纹传动连接的第三螺母211，第一丝杆、第二丝杆、第三丝杆和第一管之间通过螺纹传动连接，且螺母安装在相邻的丝杆上，位于相邻两个丝杆之间，无需另外设置固定螺母的装置，使得传动总成的轴向和径向都更加紧凑，进一步降低升降立柱的安装距，实现升降立柱的低安装距大行程。
如图5所示，本实施例中，第一丝杆310的上端设有限制第一螺母321轴向位置的第一导向套311，第一导向套311与第一丝杆310通过螺钉固定连接；第二丝杆320的上端设有限制第二螺母331轴向位置的第二导向套322，第二导向套322与第二丝杆320通过螺钉固定连接；第三丝杆330的上端设有限制第三螺母341轴向位置的第三导向套332，结合图6，第三丝杆330的周向上设有定位槽333，通过在第三导向套332上设置开口3321，第三导向套通过开口径向压入定位槽内，使得第三导向套与第三丝杆的轴向位置固定，周向方向可自由转动，进而使得第三丝杆与第一管之间可以发生相对转动。
第一导向套311的外壁与第二丝杆320的内壁相配合，使得第一导向套311在第二丝杆320内移动时，传动比较平稳；第二导向套322的外壁与第三丝杆330的内壁相配合，使得第二导向套322在第三丝杆330内移动时，传动比较平稳；升降管200均为方形管，可限制相邻升降管之间的转动，第三导向套332的外壁与第一管210的内壁相配合，因此第三导向套为方形导向套，使得第三 导向套在第一管内移动时，传动比较平稳，进而使得整个升降过程中的传动都比较平稳。
该升降立柱的上升运行过程为：驱动装置100的输出端驱动第一丝杆310旋转，因第三螺母211固定在第一管210上无法旋转，而第一螺母321的螺纹螺旋升角最大，因此第一螺母321沿着第一丝杆310向上移动，并带动其余丝杆整体向上移动，此时第一导向套311在第二丝杆320内旋转且平移，保证整体移动的平稳；当第一螺母321与第一导向套311接触时，第一丝杆310的轴向移动停止，第二丝杆320跟随第一丝杆310旋转，此时，第二螺母331的螺旋升角在第二螺母331和第三螺母211中最大，第二螺母331开始沿着第二丝杆320向上移动，此时第二导向套322在第三丝杆330内旋转且平移，保证整体移动的平稳；当第二螺母331与第二导向套322接触时，第二丝杆320的轴向移动停止，第三丝杆330跟随第一丝杆310、第二丝杆320旋转，此时，第三螺母221开始沿着第三丝杆330向上移动，此时第三导向套332在第一管210内平移，保证整体运动的平稳，当第三螺母211与第三导向套332接触时，传动总成的行程达到最大，第二丝杆320、第三丝杆330和第一管210向上移动时，带动第二管220、第三管230和第四管240向上移动，实现升降立柱的上升。
同理，升降立柱下降时，第一丝杆310旋转，第一螺母321先沿着第一丝杆310向下移动，然后依次是第二螺母331沿着第二丝杆320向下移动、第三螺母341沿着第三丝杆330向下移动，第二丝杆320、第三丝杆330和第一管210向下移动时，带动第二管220、第三管230和第四管240向下移动，实现升降立柱的下降。
第一管210和第二管220之间设有第一滑块400，第一滑块400固定于第一管210的下端，第二管220与第三管230之间设有第二滑块500，第二滑块500 固定于第二管220的下端，第三管230和第四管240之间设有第三滑块600，第三滑块600固定于第三管230的下端，第二管、第三管和第四管的上端均设置有静滑块，第二管220的上限位通过第二滑块与第三管上的静滑块接触实现，第三管230的上限位通过第三滑块与第四管上的静滑块接触实现。
第四管240内壁的下端设有下滑块(图中未示出)，第二管220的下限位通过第二管220接触下滑块实现。
第二丝杆320和第三丝杆330的内壁上均设有油槽800，油槽800沿丝杆的轴向设置，油槽的设置方便第二丝杆和第三丝杆的加工，同时油槽可存储油脂，进而减小第一导向套与第二丝杆之间的摩擦力、第二导向套与第三丝杆之间的摩擦力。
第一丝杆310的下端套设有自锁装置，自锁装置包括扭簧座313和套设于扭簧座313上的扭簧312，扭簧座313限制扭簧312的轴向位置，在传动总成300受力有收缩趋势时，扭簧312限制第一丝杆310的转动，起到自锁的作用，使得传动总成的使用更加可靠。
第三螺母211与第一管210通过铆接固定，使得第三螺母无法周向转动，且铆接工艺简单且连接可靠。
实施例二：
本实施例与实施例一的主要区别在于，升降立柱处于正装状态。
如图7和图8所示，升降立柱处于正装状态下，驱动装置100固定于升降平台上，升降管200位于驱动装置100的下端，第一螺母321位于第二丝杆320的上端，第二螺母331位于第三丝杆330的上端，第三螺母221位于第一管210的上端。
除上述优选实施例外，本发明还有其他的实施方式，本领域技术人员可以 根据本发明作出各种改变和变形，只要不脱离本发明的精神，均应属于本发明所附权利要求所定义的范围。

Claims (10)

  1. 一种升降立柱，包括驱动装置、升降管及位于升降管内部的传动总成，其特征在于，所述升降管包括由内向外依次套装的第一管、第二管、第三管和第四管，第四管的下端固定于驱动装置上，传动总成包括由内向外依次套装的第一丝杆、中空的第二丝杆和中空的第三丝杆，驱动装置的输出端与第一丝杆传动配合且可驱动第一丝杆旋转，第二丝杆的下端设有与第一丝杆螺纹传动连接的第一螺母，第三丝杆的下端设有与第二丝杆螺纹传动连接的第二螺母，第一管的下端设有与第三丝杆螺纹传动连接的第三螺母。
  2. 根据权利要求1所述的升降立柱，其特征在于，所述第一丝杆的上端设有限制第一螺母轴向位置的第一导向套，第二丝杆的上端设有限制第二螺母轴向位置的第二导向套，第三丝杆的上端设有限制第三螺母轴向位置的第三导向套。
  3. 根据权利要求2所述的升降立柱，其特征在于，所述第一导向套的外壁与第二丝杆的内壁相配合，第二导向套的外壁与第三丝杆的内壁相配合，第三导向套的外壁与第一管的内壁相配合。
  4. 根据权利要求2所述的升降立柱，其特征在于，所述第三丝杆的周向上设有定位槽，第三导向套可转动地设于定位槽上。
  5. 根据权利要求4所述的升降立柱，其特征在于，所述第三导向套上设有便于第三导向套径向压入定位槽的开口。
  6. 根据权利要求2所述的升降立柱，其特征在于，所述第一导向套与第一丝杆通过螺钉固定连接，第二导向套与第二丝杆通过螺钉固定连接。
  7. 根据权利要求1所述的升降立柱，其特征在于，所述第二丝杆和第三丝杆的内壁上均设有油槽，油槽沿丝杆的轴向设置。
  8. 根据权利要求1所述的升降立柱，其特征在于，所述第一丝杆的下端套设有 自锁装置，自锁装置包括扭簧座和套设于扭簧座上的扭簧。
  9. 根据权利要求1-8任意一项所述的升降立柱，其特征在于，所述第三螺母与第一管通过铆接固定。
  10. 根据权利要求1-8任意一项所述的升降立柱，其特征在于，所述升降管均为方形管。
PCT/CN2020/133178 2019-12-03 2020-12-01 一种升降立柱 WO2021110003A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911218792.9 2019-12-03
CN201911218792.9A CN110980585A (zh) 2019-12-03 2019-12-03 一种升降立柱

Publications (1)

Publication Number Publication Date
WO2021110003A1 true WO2021110003A1 (zh) 2021-06-10

Family

ID=70089400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/133178 WO2021110003A1 (zh) 2019-12-03 2020-12-01 一种升降立柱

Country Status (2)

Country Link
CN (1) CN110980585A (zh)
WO (1) WO2021110003A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110980585A (zh) * 2019-12-03 2020-04-10 浙江捷昌线性驱动科技股份有限公司 一种升降立柱
CN113491397B (zh) * 2021-08-06 2022-10-25 浙江乐歌智能驱动科技有限公司 悬挂式置物架的支撑柱

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206142727U (zh) * 2016-09-20 2017-05-03 浙江捷昌线性驱动科技股份有限公司 一种升降立柱
US20180172062A1 (en) * 2016-12-20 2018-06-21 Zhejiang Jiecang Linear Motion Technology Co., Ltd. Telescopic transmission assembly and lifting column using same
CN208457140U (zh) * 2018-05-28 2019-02-01 浙江捷昌线性驱动科技股份有限公司 一种升降立柱
CN109812556A (zh) * 2019-01-31 2019-05-28 宁波海仕凯驱动科技有限公司 一种传动总成及升降立柱
CN209621790U (zh) * 2018-12-29 2019-11-12 宁波海仕凯驱动科技有限公司 一种升降立柱及升降平台
CN110980585A (zh) * 2019-12-03 2020-04-10 浙江捷昌线性驱动科技股份有限公司 一种升降立柱
CN211712529U (zh) * 2019-12-03 2020-10-20 浙江捷昌线性驱动科技股份有限公司 一种升降立柱

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206142727U (zh) * 2016-09-20 2017-05-03 浙江捷昌线性驱动科技股份有限公司 一种升降立柱
US20180172062A1 (en) * 2016-12-20 2018-06-21 Zhejiang Jiecang Linear Motion Technology Co., Ltd. Telescopic transmission assembly and lifting column using same
CN208457140U (zh) * 2018-05-28 2019-02-01 浙江捷昌线性驱动科技股份有限公司 一种升降立柱
CN209621790U (zh) * 2018-12-29 2019-11-12 宁波海仕凯驱动科技有限公司 一种升降立柱及升降平台
CN109812556A (zh) * 2019-01-31 2019-05-28 宁波海仕凯驱动科技有限公司 一种传动总成及升降立柱
CN110980585A (zh) * 2019-12-03 2020-04-10 浙江捷昌线性驱动科技股份有限公司 一种升降立柱
CN211712529U (zh) * 2019-12-03 2020-10-20 浙江捷昌线性驱动科技股份有限公司 一种升降立柱

Also Published As

Publication number Publication date
CN110980585A (zh) 2020-04-10

Similar Documents

Publication Publication Date Title
WO2021110002A1 (zh) 一种低安装距的升降立柱
WO2021110003A1 (zh) 一种升降立柱
US20220274814A1 (en) Transmission assembly and lifting column
US6435048B1 (en) Multi-leg telescopic linear actuator
US20100018334A1 (en) Telescoping dual-spindle drive
WO2021184838A1 (zh) 一种智能升降柱传动系统总成
WO2020073820A1 (zh) 一种用于升降立柱的传动总成及升降立柱
CN211712529U (zh) 一种升降立柱
CN101301144B (zh) 升降桌
US9776841B2 (en) Lifting column
CN209621790U (zh) 一种升降立柱及升降平台
CN211712510U (zh) 一种低安装距的升降立柱
CN208249783U (zh) 一种高精度标准化高的升降机构
WO2021023167A1 (zh) 一种四节升降立柱
CN108078157B (zh) 一种升降桌
CN108751001A (zh) 一种高精度承载力大的升降机构
CN107960734B (zh) 一种升降桌
CN105953048A (zh) 一种空心螺旋杆双螺旋装置
CN205690033U (zh) 一种空心螺旋杆双螺旋装置
CN206288909U (zh) 含精确测距限位的多节丝杆电动升降机构
CN2910888Y (zh) 层套式自动升降装置
CN209618819U (zh) 一种传动总成及升降立柱
CN208463231U (zh) 一种同步升降推杆装置及其桌子
CN110848529A (zh) 一种传动总成及其应用的升降立柱
CN110848352A (zh) 一种线性传动总成及其应用的升降桌腿

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20896634

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20896634

Country of ref document: EP

Kind code of ref document: A1