WO2011147171A1 - 一种具有锁定功能的电动升降装置 - Google Patents

一种具有锁定功能的电动升降装置 Download PDF

Info

Publication number
WO2011147171A1
WO2011147171A1 PCT/CN2010/079212 CN2010079212W WO2011147171A1 WO 2011147171 A1 WO2011147171 A1 WO 2011147171A1 CN 2010079212 W CN2010079212 W CN 2010079212W WO 2011147171 A1 WO2011147171 A1 WO 2011147171A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
rod
electric lifting
screw rod
lifting device
Prior art date
Application number
PCT/CN2010/079212
Other languages
English (en)
French (fr)
Inventor
刘灵友
Original Assignee
玉环广鑫机械有限公司
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 玉环广鑫机械有限公司 filed Critical 玉环广鑫机械有限公司
Publication of WO2011147171A1 publication Critical patent/WO2011147171A1/zh

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/24—Chairs or stools with vertically-adjustable seats with vertical spindle

Definitions

  • the invention belongs to the technical field of electromechanical integration, and relates to a lifting device, in particular to an electric lifting device suitable for the beauty salon, medical treatment and the like, and having a locking function.
  • the lifting mechanism of the electric lifting seat is composed of a geared motor, a driven helical gear, a passive helical gear, a screw rod, a push rod and a lifting sleeve.
  • the drive is driven by the active helical gear and the passive helical gear, and the lifting is achieved by the threaded connection between the screw and the push rod.
  • the object of the present invention is to provide an electric lifting device capable of freely adjusting the seat angle and locking and unlocking it at any time during any stroke of the lifting, in view of the above problems existing in the existing electric chair. .
  • an electric lifting device with a locking function comprising a base and a lifting platform, and an electric lifting mechanism for controlling lifting of the lifting platform is arranged between the base and the lifting platform, wherein
  • the lifting platform comprises a seat body and a rotating core disposed in the seat body and rotatable relative to the seat body.
  • the outer end of the rotating core protrudes from the seat body, and the rotating core and the seat body are provided with a counter-rotating core The axial rotation rotates to lock the locking mechanism.
  • the rotating core on the lifting platform is connected with the chair seat of the chairlift such as the barber chair and the beauty chair, and the seat can rotate freely together with the rotating core, and the lifting platform is driven by the electric lifting mechanism to drive the seat together to lift and lower.
  • the lock core locks the core to prevent rotation of the core and the seat.
  • the locking mechanism includes a cylindrical sleeve body closed at one end, and the rotating core has a cavity for inserting the closed end of the sleeve body, and the cavity of the rotating core a plurality of through holes are radially opened in the sidewall of the body, and a friction member is disposed between the rotating core and the base body, and each of the through holes is provided with a pin that can slide freely along the through hole, and the sleeve body has a sleeve body When the closed end is inserted into the core cavity, the outer end of the pin protrudes from the cone head of the through hole and the friction member, and the sleeve body is further provided with a driving component and a sleeve for inserting the closed end of the driving sleeve into the cavity. Reset component for body reset.
  • the friction member is composed of an annular friction plate and a plurality of friction shoes, and the friction shoes are circumferentially arranged at the outer port of the through hole, and the friction plate sleeve On the periphery of the friction hoof.
  • the driving component drives the sleeve body to move inside the cavity of the rotating core.
  • the cone head on the sleeve body can push the pins outward along the through hole, so that the outer ends of the pins abut against the friction shoe
  • the friction shoe acts on the friction plate again.
  • the inner and outer sides of the friction plate are in close contact with the seat body and the friction shoe respectively, and the frictional force of the friction plate prevents the rotation core from rotating relative to the seat body. Since the seat body does not rotate during the entire working process, the purpose of locking the rotating core without rotating can be achieved.
  • the reset component can be used to retract the sleeve. When the force acting on the pin and the friction plate disappears, the relative rotation between the core and the seat body can be achieved again, achieving the purpose of unlocking.
  • the electric lifting mechanism includes a chassis outer casing having a socket and a motor, and the chassis outer casing is fixedly disposed on the base, and the jack of the chassis outer casing is disposed therein.
  • a screw rod and a push rod sleeved on the screw rod the inner end of the push rod is connected with an annular positioning slider, the positioning slider thread is sleeved on the screw rod, and the outer end of the push rod protrudes from the socket and the seat body
  • the inner end of the screw rod is inserted into the base and connected to the motor, and the positioning slider and the outer casing of the chassis are provided with a positioning structure for preventing axial rotation of the push rod and the positioning slider.
  • the push rod and the positioning slider can only be realized along the screw according to the forward and reverse rotation of the motor. Axial reciprocating motion. When the push rod moves outward, the outer end drives the seat body to rise, and when the push rod moves inward, the outer end drives the seat body to descend.
  • the positioning structure includes a protrusion disposed on an outer side surface of the positioning slider, and an inner wall of the insertion hole is axially opened with a card matched with the protrusion
  • the groove and the protrusion are arranged in the card slot.
  • the lug is clamped in the slot so that the positioning slider and the push rod can only move axially.
  • the driving assembly comprises a rod body disposed between the push rod and the screw rod, the rod body is sleeved on the screw rod and screwed with the screw rod, the rod body The outer end is fixedly connected with a connector that can be inserted into the sleeve from the open end of the sleeve, and an elastic block is disposed between the connector and the closed end of the sleeve.
  • the rod body comprises a pre-tightening nut threaded on the screw rod, and the diameter of the pre-tightening nut is gradually enlarged from top to bottom and is provided with a plurality of The adjusting groove, the outer surface of the pre-tightening nut is sleeved with a tappet, a spring and a taper sleeve from top to bottom, and the tappet and the pre-tightening nut are screwed together, and the two ends of the spring are respectively in contact with the taper sleeve and the tappet .
  • Spring and taper sleeves can be used to adjust the friction between the preload nut and the lead screw.
  • the resetting assembly is a tight sleeve covering the cone head of the sleeve
  • the sleeve includes a cover body and a plurality of blades made of an elastic material.
  • Each of the blades is fixed to the cover body and arranged in a circumferential gap, and the outer side surface of the blade has a pit.
  • the cone head of the sleeve is inserted into the sleeve, and the blades of the sleeve are outwardly extended. During the opening process, the pins are pushed outward to make the outer end of the pin abut. On the friction plate.
  • the inner ends of the pins are located in the pockets of the vanes to facilitate the force on the pins.
  • a worm wheel and a worm are meshed between the motor and the screw rod, the worm wheel is fixedly connected with the screw rod, and the worm is connected with the motor, and the motor is connected.
  • the motor drives the worm to rotate, and uses the meshing relationship between the worm wheel and the worm to drive, so that the worm wheel and the screw rod rotate axially.
  • the worm wheel and the worm wheel play a deceleration role
  • the control switch is used to control the forward and reverse rotation of the motor.
  • the electric lifting device with locking function can lock and unlock the seat of the chair lift, and can position or dislocate the chair lift at any stroke and at any angle, thereby conveniently positioning the seat seat at an ideal position. Angle.
  • the lifting switch for controlling the lifting and lowering of the lifting chair and the locking switch for locking or contacting the lifting chair are integrated, and the function of lifting, locking and unlocking can be realized by using a control switch, and the operation is simple and convenient.
  • 1 is a cross-sectional structural view of the electric lifting device having the locking function.
  • FIG. 2 is a schematic perspective view of a positioning slider.
  • Figure 3 is a partial enlarged view of Figure 1 at A.
  • FIG. 4 is a schematic perspective view of a casing.
  • Fig. 5 is a schematic perspective view showing the structure of the core.
  • Fig. 6 is a schematic perspective view showing the arrangement of the pins in the through holes of the core.
  • Fig. 7 is a schematic perspective view showing the structure of the sleeve.
  • Fig. 8 is a perspective view showing the structure of a preload nut.
  • the electric lifting device with the locking function comprises a base 1 and a lifting platform 2 .
  • the base 1 is fixedly provided with a chassis outer casing 3 , and the chassis outer casing 3 has a vertical insertion hole 31 and is at the jack.
  • a screw rod 4 and a push rod 5 are disposed in the 31, and the push rod 5 is sleeved on the screw rod 4.
  • the inner end of the push rod 5 is connected with an annular positioning slider 6 which is threadedly sleeved on the screw rod 4.
  • the outer end of the push rod 5 extends from the insertion hole 31 to the seat body 21 of the lifting platform 2.
  • a motor 10 is further disposed in the base 1.
  • the worm gear 11 and the worm 12 are meshed between the motor 10 and the screw shaft 4.
  • the worm wheel 11 is fixedly connected to the screw rod 4, and the worm 12 is connected to the motor 10, and the motor 10 is connected.
  • a control switch is connected.
  • the outer side of the positioning slider 6 is provided with a plurality of protrusions 61.
  • the inner wall of the insertion hole 31 is axially opened with a card slot 32 matched with the protrusion 61.
  • the protrusion 61 is disposed. In the card slot 32.
  • the lifting platform 2 includes a seat body 21 and a rotating core 22 disposed in the seat body 21 for axial rotation relative to the seat body 21 .
  • the first bearing 25 is disposed between the rotating core 22 and the seat body 21 .
  • the rotation of the rotary core 22 relative to the seat body 21 is realized, and the outer end of the rotary core 22 is extended from the seat body 21 to the seat of the lift chair such as the barber chair and the beauty chair to realize the free rotation of the seat.
  • a rod body 7 is further disposed between the push rod 5 and the lead screw 4, and the rod body 7 is threaded onto the screw rod 4.
  • the outer end of the rod body 7 is provided with a set of bodies 8.
  • the sleeve body 8 has a cylindrical shape closed at one end, and has a tapered tapered head portion 81 at its closed end.
  • the inner end of the above-mentioned rotary core 22 has a cavity 22a into which the closed end of the casing 8 can be inserted.
  • a connecting head 72a is disposed between the outer end of the rod body 7 and the sleeve body 8.
  • One end of the connecting head 72a is fixedly connected with the rod body 7, and the other end is fixed to a bearing seat 72b, and then inserted into the sleeve body 8 from the beginning end of the sleeve body 8, the sleeve body 8
  • An elastic block 82 is disposed between the closed end and the bearing housing 72b.
  • a second bearing 72c may be provided between the joint 72a and the sleeve 8 for connection.
  • a plurality of through holes 22b are defined in the side wall of the cavity 22a of the rotary core 22, and a pin 22c is disposed in each of the through holes 22b of the rotary core 22, and the periphery of the core 22 is provided.
  • a plurality of friction shoes 23 are arranged in the array, and the friction plates 24 are sleeved on the outer side of the friction shoes 23.
  • the closed end of the sleeve 8 is also covered with a sleeve 9 which, as shown in Fig. 7, comprises a cover 91 and a plurality of blades 92 made of an elastic material, the blades 92 being fixed to the cover 91,
  • the circumferential gaps of the respective vanes 92 are arranged to form the side walls of the scooping sleeve 9, and the outer side surfaces of the vanes 92 have dimples 92a that match the shape of the inner end of the pin 22c.
  • the electric lifting device controls the motor to drive the screw 4 to rotate when the lifting operation is performed.
  • the positioning slider 6 cannot be axially rotated by the limitation of the protrusion 61 and the slot 32, so that the push rod 5 can only be driven to rise along the axial direction of the screw rod 4, thereby driving the lifting platform. 2 and the seat rises.
  • the positioning slider 6 can also only push the push rod 5 together to perform a descending motion along the axial direction of the screw rod 4, and the lifting table 2 and the seat can be lowered.
  • the rod body 7 and the sleeve body 8 are connected by the second bearing 72c, and the second bearing 72c is rolling friction, the friction force is much smaller than the sliding friction of the rod body 7 and the screw rod 4, so the thread is sleeved at
  • the rod 7 on the screw shaft 4 first rotates together with the screw rod 4, but does not move axially along the screw rod 4.
  • the rotation between the joint head 72a and the sleeve body 8 can be easily realized by the second bearing 72c. .
  • the positioning slider 6 When the push rod 5 and the positioning slider 6 rise to the position where the positioning slider 6 is in contact with the bottom end of the rod body 7, the positioning slider 6 will push the rod body 7 to move upward together, and the connecting head 72a on the rod body 7 will also pass simultaneously.
  • the compression elastic block 82 pushes the sleeve 8 together.
  • the depth of the sleeve 8 inserted into the cavity 22a of the rotary core 22 is not greater than the initial depth.
  • the force acting on the inner end of the pin 22c is not present or the magnitude of the force is insufficient to push the friction shoe 23 onto the friction plate 24, and the friction between the friction plate 24 and the seat body 21 is insufficient to complete the locking.
  • the control motor 10 and the lead screw 4 are rotated counterclockwise, the push rod 5 drives the lifting platform 2 to rise, and the connecting body 72a of the rod body 7 is withdrawn from the cavity 22a of the rotating core 22, so that the casing 8 is made.
  • the cone head 81 is disengaged from the sleeve 9 and the blade 92 of the sleeve 9 is reset by its own elastic force, and the force acting on the inner end of the pin 22c disappears, thereby causing the seat body 21, the friction plate 24, the friction shoe 23 and The pins 22c are loosened so that the core 22 can be freely rotated.
  • the positioning slider 6 When the push rod 5 and the positioning slider 6 continue to rise, the positioning slider 6 is brought into contact with the lower end surface of the rod body 7 to generate sliding friction, and when the frictional force is equal to or greater than the frictional force of the rod body 7 and the screw rod 4, the rod body 7 and the wire The rod 4 produces a slip, the rod 7 does not rotate, and the screw 4 can only move the push rod 5 upward.
  • the rod body 7 is designed to be composed of a pre-tightening nut 71, a tappet 72, a spring 73 and a taper sleeve 74, and the pre-tightening nut 71 is threaded onto the screw shaft 4. As shown in FIG. 8, the diameter of the pre-tightening nut 71 gradually increases from the top to the bottom, and the pre-tightening nut 71 is provided with a plurality of adjusting grooves 71a.
  • the tappet 72, the spring 73 and the taper sleeve 74 are sequentially sleeved on the pre-tightening nut 71 from top to bottom, and the tappet 72 and the pre-tightening nut 71 are screwed together, and the two ends of the spring 73 are respectively connected with the taper sleeve 74. It is in contact with the tappet 72.
  • the spring 73 and the taper sleeve 74 are used to adjust the friction between the preload nut 71 and the lead screw 4, and also compensate for the friction between the screw rod 4 and the preload nut 71.
  • the electric lifting device is not only applied to the chair lift, but also can be applied to other devices and products that need to adjust the height of the platform frequently.

Landscapes

  • Invalid Beds And Related Equipment (AREA)

Description

一种具有锁定功能的电动升降装置
技术领域
本发明属于机电一体化技术领域，涉及一种升降装置，特别是涉及一种适用于美容美发、医疗等行业，且具有锁定功能的电动升降装置。
背景技术
在一些经常需要调整平台高度的工作领域，如美容美发行业，需要调节美容椅或理发椅的高度和角度；在医疗齿科领域，同样需要调节病人与医生的相对高度和角度以适应不同手术的需要。
为此，人们发明出了一种电动式自动升降椅，其公告号为“CN2607870Y”。该电动升降座椅的升降机构由减速电机、主动斜齿轮、被动斜齿轮、丝杆、推杆、升降套组成。利用主动斜齿轮和被动斜齿轮进行传动，依靠丝杆与推杆之间的螺纹连接关系完成升降。
虽然该专利摆脱了手动调节升降椅高度的问题，但并未披露座椅转动方式。在美容美发行业和医疗齿科等领域，还需要经常调节升降椅座椅的角度以配合美容师或医生的工作，在选定一个理想角度后还需要对其进行锁定，以防止在工作过程中发生偏移。
发明内容
本发明的目的是针对现有的电动升降椅所存在的上述问题，而提出了一种可自由调节椅座角度，并可在升降的任意行程中随时对其进行锁定和解锁定位的电动升降装置。
本发明的目的可通过下列技术方案来实现：一种具有锁定功能的电动升降装置，包括底座和升降台，底座与升降台之间设置有控制升降台升降的电动升降机构，其特征在于，所述的升降台包括座体及设置在座体内且可相对于座体轴向转动的转芯，转芯的外端伸出座体，所述的转芯与座体之间设有可对转芯的轴向转动进行锁定的锁定机构。
升降台上的转芯用于与理发椅、美容椅等升降椅的椅座连接，椅座可随转芯一起自由转动，同时升降台在电动升降机构的控制下，带动椅座一同进行升降。通过锁定机构对转芯进行锁定，防止转芯和椅座转动。
在上述的一种具有锁定功能的电动升降装置中，所述的锁定机构包括一个一端封闭的筒状套体，上述转芯具有供所述套体的封闭端插入的腔体，转芯的腔体侧壁上径向开设有若干通孔，转芯与座体之间设有摩擦件，所述的各个通孔内设置有可沿通孔自由滑动的销子，套体上具有当套体封闭端插入转芯腔体过程中使销子的外端伸出通孔与摩擦件相顶靠的锥头部，套体上还设置有驱动套体封闭端插入腔体的驱动组件和使套体复位的复位组件。
在上述的一种具有锁定功能的电动升降装置中，所述的摩擦件由一环形的摩擦片和若干块摩擦蹄组成，所述的摩擦蹄周向排列在通孔外端口处，摩擦片套在摩擦蹄外围。
驱动组件带动套体往转芯的腔体内部运动，运动过程中，套体上的锥头部可将各销子沿通孔向外推出，使各销子的外端顶靠在摩擦蹄上，摩擦蹄再作用在摩擦片上，此时摩擦片的内外两侧分别与座体和摩擦蹄紧密接触，依靠摩擦片的摩擦力，使转芯无法相对于座体发生转动。由于座体在整个工作过程中不会发生转动，因此可达到锁定转芯不进行转动的目的。利用复位组件可以使套体回退，当作用在销子和摩擦片上的作用力消失后，转芯和座体之间又再次可实现相对转动，达到了解锁的目的。
在上述的一种具有锁定功能的电动升降装置中，所述的电动升降机构包括一个具有插孔的底盘外壳体和电机，底盘外壳体固定设置在底座上，底盘外壳体的插孔内设有丝杆以及套接在丝杆上的推杆，推杆的内端连接有一环形的定位滑块，该定位滑块螺纹套接在丝杆上，推杆的外端伸出插孔与座体连接，所述丝杆的内端插入底座内与电机连接，所述的定位滑块与底盘外壳体之间设有防止推杆和定位滑块轴向转动的定位结构。
丝杆在电机带动下进行转动时，由于定位滑块和丝杆螺纹连接，且定位滑块受定位结构的限制，因此推杆和定位滑块只能根据电机的正反转情况实现沿丝杆的轴向往返运动。推杆向外运动时，其外端带动座体升高，推杆向内运动时，其外端带动座体下降。
在上述的一种具有锁定功能的电动升降装置中，所述的定位结构包括设置在定位滑块外侧面的凸块，上述插孔的内壁上轴向开设有与所述凸块相配合的卡槽，凸块设置在卡槽内。凸块卡设在卡槽内，使定位滑块和推杆只可轴向运动。
在上述的一种具有锁定功能的电动升降装置中，所述的驱动组件包括一根设置在推杆和丝杆之间的杆体，该杆体套接在丝杆上并与丝杆螺纹连接，杆体的外端固定连接有一个可从套体开口端插入套体的连接头，所述的连接头与套体封闭端之间设置有一弹性块。
杆体和套体发生相向运动时，待杆体上的连接头与弹性块接触后，会产生一个作用在弹性块上的作用力，该作用力推动弹性块和套体沿远离连接头，也就是深入转芯腔体的方向运动。而杆体和套体发生反向运动时，连接头和弹性块之间的作用力会逐渐减小直至完全消失。
在上述的一种具有锁定功能的电动升降装置中，所述的杆体包括螺纹套接在丝杆上的预紧螺母，所述的预紧螺母的孔径自上而下逐渐变大并开设有若干调节槽，预紧螺母外表面自上而下依次套接有挺杆、弹簧和锥度套，挺杆与预紧螺母之间通过螺纹连接在一起，弹簧的两端分别与锥度套和挺杆接触。弹簧和锥度套可用来调整预紧螺母和丝杆之间的摩擦力。
在上述的一种具有锁定功能的电动升降装置中，所述的复位组件为一盖于套体锥头部的绽紧套，该绽紧套包括盖体和若干由弹性材料制成的叶片，所述的各个叶片与盖体固连且呈周向间隙排列，叶片的外侧面具有凹坑。套体的锥头部插入到绽紧套内，并可将绽紧套的各个叶片向外撑开，撑开过程中将推动上述的各销子向外运动，使销子的外端顶靠在摩擦片上。各个销子的内端位于叶片的凹坑内，方便对销子用力。
在上述的一种具有锁定功能的电动升降装置中，所述的电机与丝杆之间设置有啮合在一起的蜗轮和蜗杆，蜗轮与上述丝杆固连，蜗杆则与电机连接，电机上连接有控制开关。电机带动蜗杆转动，利用蜗轮与蜗杆之间的啮合关系进行传动，使蜗轮与丝杆进行轴向转动，此处蜗轮与蜗杆起到减速作用，控制开关则用于控制电机的正反转情况。
与现有技术相比，本具有锁定功能的电动升降装置可对升降椅的椅座进行锁定和解锁，可以使升降椅在任意行程和任意角度进行定位或解除定位，方便将椅座定位在理想的角度。另外，将控制升降椅升降的升降开关和对升降椅进行锁定或接触的锁定开关集成在一起，使用一个控制开关即可实现升降、锁定和解锁的功能，操作简单方便。
附图说明
图1是本具有锁定功能的电动升降装置的剖视结构示意图。
图2是定位滑块的立体结构示意图。
图3是图1在A处的局部放大图。
图4是套体的立体结构示意图。
图5是转芯的立体结构示意图。
图6是转芯的通孔内设置销子之后的立体结构示意图。
图7是绽紧套的立体结构示意图。
图8是预紧螺母的立体结构示意图。
图中，1、底座；2、升降台；21、座体；22、转芯；22a、腔体；22b、通孔；22c、销子；23、摩擦蹄；24、摩擦片；25、第一轴承；3、底盘外壳体；31、插孔；32、卡槽；4、丝杆；5、推杆；6、定位滑块；61、凸块；7、杆体；71、预紧螺母；71a、调节槽；72、挺杆；72a、连接头；72b、轴承座；72c、第二轴承；73、弹簧；74、锥度套；8、套体；81、锥头部；82、弹性块；9、绽紧套；91、盖体；92、叶片；92a、凹坑；10、电机；11、蜗轮；12、蜗杆。
具体实施方式
以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。
如图1所示，本具有锁定功能的电动升降装置包括底座1和升降台2，底座1上固定设置有一底盘外壳体3，该底盘外壳体3具有一竖直插孔31，且在插孔31内设置有丝杆4和推杆5，推杆5套接在丝杆4上。推杆5的内端连接有一环形的定位滑块6，该定位滑块6螺纹套接在丝杆4上，推杆5的外端伸出插孔31与升降台2的座体21连接。底座1内还设置有电机10，电机10与丝杆4之间设置有啮合在一起的蜗轮11和蜗杆12，蜗轮11与上述丝杆4固连，蜗杆12则与电机10连接，电机10上连接有控制开关。
如图2所示，定位滑块6的外侧面周向设置有若干凸块61，上述插孔31的内壁上轴向开设有与所述凸块61相配合的卡槽32，凸块61设置在卡槽32内。
如图3所示，升降台2包括座体21以及设置在座体21内可相对于座体21进行轴向转动的转芯22，转芯22与座体21之间设置有第一轴承25以实现转芯22相对于座体21的转动，转芯22的外端伸出座体21与理发椅、美容椅等升降椅的椅座固定连接，实现椅座的自由转动。
推杆5和丝杆4之间还设置有一杆体7，该杆体7螺纹套接于丝杆4上，杆体7的外端处设置有一套体8。如图4所示，该套体8呈一端封闭的圆筒状，且其封闭端具有锥形的锥头部81。上述转芯22内端具有可供该套体8的封闭端插入的腔体22a。杆体7外端与套体8之间设置有连接头72a，连接头72a一端与杆体7固定连接，另一端固连一个轴承座72b后从套体8的开头端插入套体8，套体8的封闭端和轴承座72b之间设置有弹性块82。此处，可在连接头72a和套体8之间设置第二轴承72c进行连接。
如图5和图6所示，转芯22的腔体22a侧壁上径向开设有若干通孔22b，转芯22的各个通孔22b内均设置有销子22c，转芯22的外围周向排列设置有若干块摩擦蹄23，再在摩擦蹄23的外侧套设摩擦片24。
套体8的封闭端还盖有一个绽紧套9，如图7所示，该绽紧套9包括盖体91和若干由弹性材料制成的叶片92，叶片92与盖体91固连，各个叶片92周向间隙排列组成绽紧套9的侧壁，叶片92的外侧面具有与销子22c的内端形状相匹配的凹坑92a。
本电动升降装置在进行升降操作时，利用控制开关控制电机带动丝杆4旋转。丝杆4逆时针转动时，定位滑块6受凸块61和卡槽32的限制不能轴向转动，因此只能带动推杆5一起沿丝杆4的轴向做上升运动，进而带动升降台2和椅座上升。当丝杆4进行顺时针转动时，定位滑块6同样只能带动推杆5一起沿丝杆4的轴向做下降运动，升降台2和椅座实现下降。
推杆5在上升过程中，杆体7和套体8是靠第二轴承72c连接的，第二轴承72c是滚动摩擦，摩擦力远小于杆体7和丝杆4的滑动摩擦，因此螺纹套接在丝杆4上的杆体7首先会随丝杆4一同转动，但不会沿丝杆4轴向运动，杆体7转动时依靠第二轴承72c可轻松实现连接头72a和套体8之间的转动。待推杆5和定位滑块6上升到定位滑块6与杆体7的底端接触时，继续上升则定位滑块6会推动杆体7一同向上运动，杆体7上的连接头72a也会同时通过压缩弹性块82推动套体8一同上升。此时，由于升降台2随推杆5一同上升，因此套体8插入至转芯22腔体22a内的深度不会大于初始深度。作用在销子22c内端的作用力不存在或作用力的大小不足以将摩擦蹄23顶到摩擦片24上，摩擦片24与座体21之间的摩擦力不够，无法完成锁定。
升降台2的上升调节完成后，若要对椅座进行锁定，则只需反向控制电机10和丝杆4的转向，定位滑块6和推杆5向下运动，定位滑块6与杆体7分离后，作用在杆体7底端的推力消失，杆体7、连接头72a再次随丝杆4一同转动而不做上下运动，套体8在竖直方向上保持静止。推杆5向下运动带动升降台2下降，由于套体8竖直方向上静止，因此套体8与转芯22腔体22a之间存在相对运动，套体8插入转芯22腔体22a内的深度增加，套体8的锥头部81顶向绽紧套9，使绽紧套9的各叶片92向外侧撑开，推动各销子22c沿通孔22b向外伸出，作用在摩擦蹄23上，将各摩擦蹄23紧紧地顶靠在摩擦片24上，使摩擦片24和座体21紧紧挤压在一起，以达到转芯22与座体21在一定的摩擦力下锁紧固定的目的。
锁紧完成后，若未及时停止电机10，推杆5和升降台2还会继续下降，销子22c作用在套体8锥头部81上的反作用力则推动套体8向杆体7方向靠近，轴承座72b和套体8封闭端之间的弹性块82持续被压缩。待套体8的开头端端面下降到与杆体7端面接触时，杆体7连接头72a与套体8之间由之前的滚动摩擦转为滑动摩擦，当这个摩擦力等于或大于杆体7跟丝杆4的摩擦力时，杆体7与丝杆4就产生打滑，杆体7沿丝杆4向下运动，套体8插入转芯22腔体22a的深度保持不变，于是转芯22与座体21之间的锁紧力就固定在一个预定值不变。
需要继续调高升降台2时，控制电机10和丝杆4逆时针转动，推杆5带动升降台2升高，杆体7连接头72a相对于从转芯22腔体22a抽出，使套体8的锥头部81脱离绽紧套9，绽紧套9的叶片92在自身弹力作用下复位，作用在销子22c内端的作用力消失，从而使座体21、摩擦片24、摩擦蹄23和销子22c之间松开，这样转芯22就可以自由转旋了。当推杆5和定位滑块6继续上升，使定位滑块6和杆体7的下端面接触并产生滑动摩擦，当摩擦力等于或大于杆体7与丝杆4的摩擦力时，杆体7和丝杆4产生打滑，杆体7并不会产生旋转，丝杆4只能带动推杆5向上运动。
同样，转芯22的锁定完成后，在需要对其解除锁定时，只需控制推杆5和升降台2略微升高即可。
另外，由于杆体7与丝杆4之间会存在摩擦损耗，因此杆体7与丝杆4之间的摩擦力会变小。将杆体7设计成由预紧螺母71、挺杆72、弹簧73和锥度套74这几个部件组成，预紧螺母71螺纹套接在丝杆4上。如图8所示，预紧螺母71的孔径自上而下逐渐变大，预紧螺母71上开设有若干调节槽71a。挺杆72、弹簧73和锥度套74自上而下依次套接在预紧螺母71上，挺杆72和预紧螺母71之间通过螺纹连接在一起，弹簧73的两端分别与锥度套74和挺杆72接触。弹簧73和锥度套74用于调节预紧螺母71和丝杆4之间的摩擦力的，还能补偿一定量的丝杆4与预紧螺母71之间的摩损。
增加挺杆72与预紧螺母71的螺纹连接深度，压缩弹簧73，进而推动锥度套74向下运动，使预紧螺母71的大端口向内收缩，增加预紧螺母71与丝杆4之间的摩擦力。
需要说明的是，该电动升降装置不仅仅应用在升降椅中，还可应用在其他需要经常调整平台高度的设备和产品上。
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。

Claims (1)

1 、一种具有锁定功能的电动升降装置，包括底座（1）和升降台（2），底座（1）与升降台（2）之间设置有控制升降台（2）升降的电动升降机构，其特征在于，所述的升降台（2）包括座体（21）及设置在座体（21）内且可相对于座体（21）轴向转动的转芯（22），转芯（22）的外端伸出座体（21），所述的转芯（22）与座体（21）之间设有可对转芯（22）的轴向转动进行锁定的锁定机构。
2 、根据权利要求1所述的一种具有锁定功能的电动升降装置，其特征在于，所述的锁定机构包括一个一端封闭的筒状套体（8），上述转芯（22）具有供所述套体（8）的封闭端插入的腔体（22a），转芯（22）的腔体（22a）侧壁上径向开设有若干通孔（22b），转芯（22）与座体（21）之间设有摩擦件，所述的各个通孔（22b）内设置有可沿通孔（22b）自由滑动的销子（22c），套体（8）上具有当套体（8）封闭端插入转芯（22）腔体（22a）过程中使销子（22c）的外端伸出通孔（22b）与摩擦件相顶靠的锥头部（81），套体（8）上还设置有驱动套体（8）封闭端插入腔体（22a）的驱动组件和使套体（8）复位的复位组件。
3 、根据权利要求2所述的一种具有锁定功能的电动升降装置，其特征在于，所述的摩擦件由一环形的摩擦片（24）和若干块摩擦蹄（23）组成，所述的摩擦蹄（23）周向排列在通孔（22b）外端口处，摩擦片（24）套在摩擦蹄（23）外围。
4 、根据权 利要求1或2或3所述的一种具有锁定功能的电动升降装置，其特征在于，所述的电动升降机构包括一个具有插孔（31）的底盘外壳体（3）和电机（10），底盘外壳体（3）固定设置在底座（1）上，底盘外壳体（3）的插孔（31）内设有丝杆（4）以及套接在丝杆（4）上的推杆（5），推杆（5）的内端连接有一环形的定位滑块（6），该定位滑块（6）螺纹套接在丝杆（4）上，推杆（5）的外端伸出插孔（31）与座体（21）连接，所述丝杆（4）的内端插入底座（1）内与电机（10）连接，所述的定位滑块（6）与底盘外壳体（3）之间设有防止推杆（5）和定位滑块（6）轴向转动的定位结构。
5 、根据权利要求4所述的一种具有锁定功能的电动升降装置，其特征在于， 所述的定位结构包括设置在定位滑块（6）外侧面的凸块（61），上述插孔（31）的内壁上轴向开设有与所述凸块（61）相配合的卡槽（32），凸块（61）设置在卡槽（32）内。
6 、根据权利要求2或3所述的一种具有锁定功能的电动升降装置，其特征在于，所述的驱动组件包括一根设置在推杆（5）和丝杆（4）之间的杆体（7），该杆体（7）套接在丝杆（4）上并与丝杆（4）螺纹连接，杆体（7）的外端固定连接有一个可从套体（8）开口端插入套体（8）的连接头（72a），所述的连接头（72a）与套体（8）封闭端之间设置有一弹性块（82）。
7 、根据权利要求6所述的一种具有锁定功能的电动升降装置，其特征在于，所述的杆体（7）包括螺纹套接在丝杆（4）上的预紧螺母（71），所述的预紧螺母（71）的孔径自上而下逐渐变大并开设有若干调节槽（71a），预紧螺母（71）外表面自上而下依次套接有挺杆（72）、弹簧（73）和锥度套（74），挺杆（72）与预紧螺母（71）之间通过螺纹连接在一起，弹簧（73）的两端分别与锥度套（74）和挺杆（72）接触。
8 、根据权利要求2或3所述的一种具有锁定功能的电动升降装置，其特征在于，所述的复位组件为一盖于套体（8）锥头部（81）的绽紧套（9），该绽紧套（9）包括盖体（91）和若干由弹性材料制成的叶片（92），所述的各个叶片（92）与盖体（91）固连且呈周向间隙排列，叶片（92）的外侧面具有凹坑（92a）。
9 、根据权利要求4所述的一种具有锁定功能的电动升降装置，其特征在于， 所述的电机（10）与丝杆（4）之间设置有啮合在一起的蜗轮（11）和蜗杆（12），蜗轮（11）与上述丝杆（4）固连，蜗杆（12）则与电机（10）连接，电机（10）上连接有控制开关。
PCT/CN2010/079212 2010-05-28 2010-11-28 一种具有锁定功能的电动升降装置 WO2011147171A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010185672.6 2010-05-28
CN2010101856726A CN101816493B (zh) 2010-05-28 2010-05-28 一种具有锁定功能的电动升降装置

Publications (1)

Publication Number Publication Date
WO2011147171A1 true WO2011147171A1 (zh) 2011-12-01

Family

ID=42651894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/079212 WO2011147171A1 (zh) 2010-05-28 2010-11-28 一种具有锁定功能的电动升降装置

Country Status (2)

Country Link
CN (1) CN101816493B (zh)
WO (1) WO2011147171A1 (zh)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103689933A (zh) * 2013-12-16 2014-04-02 华侨大学 同步带驱动型椅子
CN106785327A (zh) * 2017-01-22 2017-05-31 江苏捷诚车载电子信息工程有限公司 车载双丝杠电动天线升降平台
CN107195806A (zh) * 2017-05-31 2017-09-22 江苏昊科汽车空调有限公司 一种具有防盗功能的铅酸电池用电池盒
CN108125699A (zh) * 2018-02-01 2018-06-08 刘陈邦 一种可弯折的骨凿
CN110772386A (zh) * 2018-07-31 2020-02-11 李雷 一种理疗装置作用人体的方法
CN111093294A (zh) * 2020-01-21 2020-05-01 上海顺河通信工程有限公司 一种用于通信领域通信基站的支撑调节装置
CN113306427A (zh) * 2021-07-12 2021-08-27 李小芹 一种电动滑板车、电动滑板车的充电桩
CN113390178A (zh) * 2021-06-17 2021-09-14 湖北工业大学 一种可升降的新风机底座平台及控制方法
CN114468533A (zh) * 2021-12-24 2022-05-13 浙江乐歌智能驱动科技有限公司 丝杆螺母机构
CN114700925A (zh) * 2022-03-03 2022-07-05 电子科技大学成都学院 一种机械臂

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101816493B (zh) * 2010-05-28 2012-06-27 玉环广鑫机械有限公司 一种具有锁定功能的电动升降装置
CN106654878B (zh) * 2016-08-31 2017-12-22 毛利英 一种节能型户外配电柜安装锁定装置
CN106300056B (zh) * 2016-08-31 2017-12-22 毛利英 一种户外配电柜安装锁定装置
CN106253094B (zh) * 2016-08-31 2017-12-05 张伟萍 一种改进型户外配电柜安装锁定装置
CN107960772B (zh) * 2017-11-23 2019-11-08 宁波工程学院 一种智能靠背
CN107713453B (zh) * 2017-11-23 2019-11-15 宁波工程学院 一种智能调节椅
CN109723903A (zh) * 2019-01-24 2019-05-07 浙江凯拓机电有限公司 一种锁闭阀
CN110107620B (zh) * 2019-05-06 2024-06-11 常州市凯迪电器股份有限公司 升降柱的摩擦自锁机构和升降柱
CN110326928B (zh) * 2019-06-22 2021-06-08 李家齐 一种多角度可调式保健床

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750701A (en) * 1987-05-05 1988-06-14 Illinois Tool Works, Inc. Chair height adjustment mechanism
CN2509936Y (zh) * 2001-11-23 2002-09-11 高航 电动升降座椅
JP2002306268A (ja) * 2001-04-11 2002-10-22 Fuji Furniture Kk 昇降椅子
CN2607870Y (zh) * 2003-04-14 2004-03-31 崔雪海 电动升降座椅
CN2710448Y (zh) * 2004-02-23 2005-07-20 何炽基 一种椅用电动升降装置
CN101496684A (zh) * 2009-03-04 2009-08-05 郑立春 电动升降装置
CN101816493A (zh) * 2010-05-28 2010-09-01 玉环广鑫机械有限公司 一种具有锁定功能的电动升降装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6629731B2 (en) * 2000-12-20 2003-10-07 Eac Corporation Methods and apparatus for electrically controlling adjustments of a chair
US6951370B1 (en) * 2003-12-19 2005-10-04 Hsiu-Hsia Hsu Exotic chair
CN100494952C (zh) * 2005-11-15 2009-06-03 杨恩久 减速顶测速台
CN101391376B (zh) * 2008-07-23 2010-06-02 云南昆船设计研究院 单驱动控制工作台旋转和升降的装置
CN201743296U (zh) * 2010-05-28 2011-02-16 玉环广鑫机械有限公司 一种具有锁定功能的电动升降装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750701A (en) * 1987-05-05 1988-06-14 Illinois Tool Works, Inc. Chair height adjustment mechanism
JP2002306268A (ja) * 2001-04-11 2002-10-22 Fuji Furniture Kk 昇降椅子
CN2509936Y (zh) * 2001-11-23 2002-09-11 高航 电动升降座椅
CN2607870Y (zh) * 2003-04-14 2004-03-31 崔雪海 电动升降座椅
CN2710448Y (zh) * 2004-02-23 2005-07-20 何炽基 一种椅用电动升降装置
CN101496684A (zh) * 2009-03-04 2009-08-05 郑立春 电动升降装置
CN101816493A (zh) * 2010-05-28 2010-09-01 玉环广鑫机械有限公司 一种具有锁定功能的电动升降装置

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103689933A (zh) * 2013-12-16 2014-04-02 华侨大学 同步带驱动型椅子
CN103689933B (zh) * 2013-12-16 2016-05-18 华侨大学 同步带驱动型椅子
CN106785327A (zh) * 2017-01-22 2017-05-31 江苏捷诚车载电子信息工程有限公司 车载双丝杠电动天线升降平台
CN106785327B (zh) * 2017-01-22 2023-09-22 江苏捷诚车载电子信息工程有限公司 车载双丝杠电动天线升降平台
CN107195806A (zh) * 2017-05-31 2017-09-22 江苏昊科汽车空调有限公司 一种具有防盗功能的铅酸电池用电池盒
CN108125699A (zh) * 2018-02-01 2018-06-08 刘陈邦 一种可弯折的骨凿
CN108125699B (zh) * 2018-02-01 2024-03-22 山东医学高等专科学校 一种可弯折的骨凿
CN110772386A (zh) * 2018-07-31 2020-02-11 李雷 一种理疗装置作用人体的方法
CN111093294B (zh) * 2020-01-21 2022-09-02 上海顺河通信工程有限公司 一种用于通信领域通信基站的支撑调节装置
CN111093294A (zh) * 2020-01-21 2020-05-01 上海顺河通信工程有限公司 一种用于通信领域通信基站的支撑调节装置
CN113390178A (zh) * 2021-06-17 2021-09-14 湖北工业大学 一种可升降的新风机底座平台及控制方法
CN113306427B (zh) * 2021-07-12 2022-05-31 盐城源升智能科技有限公司 一种适用于电动滑板车的充电桩
CN113306427A (zh) * 2021-07-12 2021-08-27 李小芹 一种电动滑板车、电动滑板车的充电桩
CN114468533A (zh) * 2021-12-24 2022-05-13 浙江乐歌智能驱动科技有限公司 丝杆螺母机构
CN114468533B (zh) * 2021-12-24 2023-02-24 浙江乐歌智能驱动科技有限公司 丝杆螺母机构
CN114700925A (zh) * 2022-03-03 2022-07-05 电子科技大学成都学院 一种机械臂
CN114700925B (zh) * 2022-03-03 2023-04-07 电子科技大学成都学院 一种机械臂

Also Published As

Publication number Publication date
CN101816493B (zh) 2012-06-27
CN101816493A (zh) 2010-09-01

Similar Documents

Publication Publication Date Title
WO2011147171A1 (zh) 一种具有锁定功能的电动升降装置
KR102326102B1 (ko) 로봇 아암을 수술 테이블에 부착하기 위한 커플러
US9438086B2 (en) Electric push bar assembly
CN207459307U (zh) 一种能够快速自锁和解锁的电气连接器
CN102860803B (zh) 可正反转的拖把
WO2023035917A1 (zh) 拆卸装置、电池包和机器人
TWM582551U (zh) Actuator with both hand and anti-pinch mechanism
TW202135626A (zh) 多端口資料存取裝置
CN101380735B (zh) 一种基于形封闭的对接抓持一体化机构
GB2505285A (en) A self-closing toilet cover connection device
WO2022116214A1 (zh) 快速插拔装置、执行机构及手术机器人
CN201743296U (zh) 一种具有锁定功能的电动升降装置
CN104153607B (zh) 一种用于游泳池的可调式墙刷
TWM450343U (zh) 快拆式馬桶蓋套件
CN114458664A (zh) 锁紧电动缸及其锁定、解锁方法
ITTO20110155U1 (it) Scatola con dispositivo di apertura.
CN210227514U (zh) 一种智能家具用新型沙发
CN106108455A (zh) 一种具有锁件的可旋转扶手组件
CN208587016U (zh) 无源锁芯
JP2020033033A (ja) ペットボトルの開蓋装置
TWM483150U (zh) 用於手工具的棘輪驅動機構
CN111734931A (zh) 用于摄影器材的电控滑动装置及其锁定组件
CN216751266U (zh) 一种防尘效果好的户外电源
CN104669291A (zh) 一种仿生四指形封闭机械手
CN215395302U (zh) 一种工件物料移载的无动力夹持机构

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: 10852040

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: 10852040

Country of ref document: EP

Kind code of ref document: A1