WO2023155293A1 - 牙科治疗椅升降结构 - Google Patents

牙科治疗椅升降结构 Download PDF

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Publication number
WO2023155293A1
WO2023155293A1 PCT/CN2022/088896 CN2022088896W WO2023155293A1 WO 2023155293 A1 WO2023155293 A1 WO 2023155293A1 CN 2022088896 W CN2022088896 W CN 2022088896W WO 2023155293 A1 WO2023155293 A1 WO 2023155293A1
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Prior art keywords
lifting
hanger
traction
dental chair
seat
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PCT/CN2022/088896
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English (en)
French (fr)
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杨建成
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杨建成
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Publication of WO2023155293A1 publication Critical patent/WO2023155293A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/02—Chairs with means to adjust position of patient; Controls therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/10—Parts, details or accessories

Definitions

  • the invention belongs to the technical field of dental chairs, and in particular relates to a lifting structure of a dental treatment chair.
  • the dental chair is used for the inspection and treatment of oral surgery and oral diseases.
  • Electric dental chairs are mostly used, the whole machine is fixed on the ground with the bottom plate, and the bottom plate is connected with the upper part of the dental chair through a bracket.
  • the movement of the dental chair is controlled by the control switch on the back of the chair. Its working principle is: control the switch to start the motor It runs and drives the transmission mechanism to work, so that the corresponding parts of the dental chair move.
  • manipulate the control switch button the dental chair can complete actions such as rising, falling, bending, supine position and reset.
  • most known lifting mechanisms of dental chairs use mechanical linkages under the seat cushions.
  • the structure requires a large space, which limits the downward adjustment position of the dental chair and brings a lot of inconvenience to the operation of the patient and the doctor.
  • the object of the present invention is to provide a lifting structure for a dental chair, which aims to solve the problem that the known lifting mechanism of the dental chair in the prior art adopts a mechanical linkage. Limited technical issues.
  • a dental chair lifting structure provided by an embodiment of the present invention includes:
  • Lifting column seat the lifting column seat is placed on a plane for guiding;
  • the dental chair attachment hanger is movably installed in the lifting column seat and can slide up and down along the height direction of the lifting column seat, and is used for installing an external dental chair;
  • the hanger lifting mechanism is installed on the lifting column seat, the lifting end of the hanger lifting mechanism is fixedly connected with the dental chair attachment hanger, and is used to drive the dental chair attachment hanger Smooth lift.
  • the hanger lifting mechanism includes:
  • the lifting running seat is fixedly connected to the lifting column seat;
  • Lifting traction unit the first end of the lifting traction unit is fixedly connected to the lifting operation seat, and the second end of the lifting traction unit is fixedly connected to the lifting operation seat and the lifting column seat in sequence
  • the dental chair is attached to the hanger;
  • the lifting traction unit is slidably connected with the winding point of the lifting column base to form a traction adjustment point on the lifting running seat;
  • the lifting driving unit is adjacent to one side of the lifting column seat and is on the same axis as the lifting running seat, and the driving end of the lifting driving unit is connected to the traction adjustment point;
  • the lift drive unit drives the traction adjustment point to slide up and down along the height direction of the lift running seat, and then changes the first end of the lift traction unit to the traction adjustment point and the second end of the lift traction unit.
  • the length ratio between the end to the traction adjustment point is the length ratio between the end to the traction adjustment point.
  • the lifting drive unit includes a lifting drive source, a rotating drive screw, and a lifting linkage slider; the lifting linkage slider is slidably arranged in the lifting running seat, and the end of the lifting linkage slider is connected The traction adjustment point is connected; the rotation driving screw is installed in the lifting operation seat, and the rotation driving screw passes through the lifting linkage slider and forms a threaded fit; the lifting driving source is adjacently arranged on the One side of the lifting column seat is on the same axis as the rotating driving screw, and the output shaft of the lifting driving source is connected to the rotating driving screw.
  • one end of the dental chair attachment hanger fixedly connected to the external dental chair is on the same end face as the end of the dental chair attachment hanger fixedly connected to the lifting traction unit, so that the lifting traction The traction force generated by the unit is to balance the gravity of the dental chair attachment hanger and the external dental chair.
  • connection between the lifting and pulling units of the two groups and the hanging bracket attached to the dental chair is the same distance from the center of the hanging bracket attached to the dental chair, so that the teeth The chair is attached to the hanger to balance left and right.
  • the lifting traction unit includes a traction member, an adjusting wheel and several turning wheels; the adjusting wheel is slidably arranged on the lifting running seat and connected with the driving end of the lifting driving unit to form At the traction adjustment point, several steering wheels are rotatably mounted on the lifting column seat, the first end of the traction member is fixedly connected to the lifting running seat, and the second end of the traction member is in turn It is fixedly connected to the attachment hanger of the dental chair by bypassing the adjusting wheel and several turning wheels.
  • the lifting running seat is vertically provided with a limiting track along its height direction, and the adjusting wheel is slidably arranged in the limiting track and moves along the limiting track, thereby pulling the traction member .
  • the lifting column seat includes an upper top plate, a lower bottom plate, and a lifting guide column; the lifting guide column is vertically arranged between the upper top plate and the lower bottom plate, and the dental chair is attached to a hanger sliding sleeve slide up and down on the lifting guide column and along the lifting guide column; the hanger lifting mechanism is installed on the upper top plate and fixedly connected with the hanging bracket attached to the dental chair.
  • the dental chair attachment hanger is evenly provided with several rollers rollingly connected to the lifting guide column along its circumferential direction, and the dental chair attachment hanger is slidably fitted on the Lifting guide column.
  • the dental chair attachment hanger in the lifting structure of the dental treatment chair is movably installed in the lifting column seat,
  • the lifting end of the frame lifting mechanism is fixedly connected with the hanger attached to the dental chair, and the external dental chair is fixed through the attached hanger of the dental chair to complete the assembly of the lifting structure of the dental treatment chair and the external dental chair;
  • the lifting structure of the dental treatment chair is in operation.
  • the hanger lifting mechanism moves, and then drives the attached hanger of the dental chair to slide up and down along the height direction of the lifting column seat to realize stable lifting.
  • the lifting structure of the dental treatment chair of the present invention performs uniform balanced linear motion, the lifting of the dental chair is more stable and safer, and the patient has no drift and weightlessness during the lifting process, which reduces the patient's fear of treatment.
  • the external dental chair is externally connected to the lifting structure of the dental treatment chair of the present invention, and is located in different lifting spaces, the suspended vertical lifting of the external dental chair is realized, so that the lowering position of the dental chair is not restricted, increasing the The doctor's work area makes the doctor safer, more convenient and more comfortable during work.
  • Fig. 1 is a perspective view of the lifting structure of the dental treatment chair provided by the embodiment of the present invention.
  • Fig. 2 is a front view of the lifting structure of the dental treatment chair provided by the embodiment of the present invention.
  • Fig. 3 is a side view of the lifting structure of the dental treatment chair provided by the embodiment of the present invention.
  • Fig. 4 is a schematic structural diagram of the lifting traction unit provided by the embodiment of the present invention.
  • Fig. 5 is a schematic diagram of the connection between the lifting drive unit and the lifting running seat provided by the embodiment of the present invention.
  • Fig. 6 is a schematic diagram of the connection between the dental chair attachment hanger and the lifting column seat provided by the embodiment of the present invention.
  • lifting column seat 110, upper top plate; 120, lower bottom plate; 130, lifting guide column;
  • 300 hanger lifting mechanism; 310, lifting running seat; 311, limit track; 320, lifting traction unit; 321, traction piece; 322, adjusting runner; 323, steering runner; 330, lifting drive unit; 331, Raise the driving source; 332, rotate the driving screw; 333, raise the linkage slider.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • connection In the embodiments of the present invention, terms such as “installation”, “connection”, “connection” and “fixation” should be interpreted in a broad sense unless otherwise clearly specified and limited. Disassembled connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention according to specific situations.
  • a dental chair lifting structure including:
  • Lifting column seat 100 the lifting column seat 100 is placed on a plane for guiding;
  • the dental chair attachment hanger 200, the dental chair attachment hanger 200 is movably installed in the lifting column base 100 and can slide up and down along the height direction of the lifting column base 100, for installing an external dental chair;
  • hanger lifting mechanism 300 the hanger lifting mechanism 300 is installed on the lifting column base 100, the lifting end of the hanger lifting mechanism 300 is fixedly connected with the dental chair attachment hanger 200, for driving the The dental chair is attached to the hanger 200 to move up and down smoothly.
  • the dental chair attachment hanger 200 in the dental chair lifting structure is movably installed in the lifting column seat 100, and the lifting end of the hanger lifting mechanism 300 is fixed to the dental chair attachment hanger 200.
  • the dental chair attachment hanger 200 is fixed to the external dental chair to complete the assembly of the dental chair lifting structure and the external dental chair; when the dental chair lifting structure is working, the hanger lifting mechanism 300 moves, Further, the dental chair attachment hanger 200 is driven to slide up and down along the height direction of the lifting column base 100 to achieve smooth lifting.
  • the lifting structure of the dental treatment chair of the present invention performs uniform balanced linear motion, the lifting of the dental chair is more stable and safer, and the patient has no drift and weightlessness during the lifting process, which reduces the patient's fear of treatment.
  • the external dental chair is externally connected to the lifting structure of the dental treatment chair of the present invention, and is located in different lifting spaces, the suspended vertical lifting of the external dental chair is realized, so that the lowering position of the dental chair is not restricted, increasing the The doctor's work area makes the doctor safer, more convenient and more comfortable during work.
  • the hanger lifting mechanism 300 includes:
  • the lifting running seat 310 is fixedly connected to the lifting column seat 100;
  • Lifting traction unit 320 the first end of the lifting traction unit 320 is fixedly connected to the lifting running seat 310, and the second end of the lifting pulling unit 320 bypasses the lifting running seat 310 and the lifting column base in turn 100 and is fixedly connected to the attachment hanger 200 of the dental chair; the lifting traction unit 320 is slidably connected to the winding point of the lifting column seat 100 on the lifting running seat 310 to form a traction adjustment point;
  • the lifting driving unit 330 is adjacently arranged on one side of the lifting column seat 100 and is on the same axis as the lifting running seat 310, the driving end of the lifting driving unit 330 is connected to the traction The adjustment point is connected;
  • the lift driving unit 330 drives the traction adjustment point to slide up and down along the height direction of the lift running seat 310, thereby changing the relationship between the first end of the lift traction unit 320 to the traction adjustment point and the lift traction The length ratio between the second end of the unit 320 and the traction adjustment point.
  • the lifting drive unit 330 drives the traction adjustment point to slide down along the height direction of the lifting running seat 310, at this time
  • the length from the first end of the lifting traction unit 320 to the traction adjustment point gradually increases, while the length from the second end of the lifting traction unit 320 to the traction adjustment point gradually shortens, thereby realizing the attachment of the dental chair to the hanger 200 and the external dental chair slide upwards along the height direction of the lifting column seat 100 to achieve a smooth rise.
  • the lifting drive unit 330 drives the traction adjustment point to slide upwards along the height direction of the lifting running seat 310, at this time the lifting The length from the first end of the traction unit 320 to the traction adjustment point is gradually shortened, while the length from the second end of the lifting traction unit 320 to the traction adjustment point is gradually increased, thereby realizing the attachment of the dental chair to the hanger 200 and the external The dental chair slides downward along the height direction of the lifting column seat 100 to achieve a smooth descent.
  • the hanger lifting mechanism 300 can realize the lifting of the external dental chair under the cooperation of the lifting running seat 310, the lifting traction unit 320 and the lifting driving unit 330, which is convenient for the user to adjust the external dental chair. To the appropriate height, strong versatility.
  • the hanger lifting mechanism 300 realizes double-speed rising and falling.
  • the lifting drive unit 330 drives the traction adjustment point to push a centimeter along the height direction of the lifting running seat 310, the tooth The chair attachment hanger 200 and the external dental chair will be pushed to a height of two centimeters along the height direction of the lifting column seat 100, which reduces the friction of high-speed operation and increases the service life.
  • the lifting drive unit 330 includes a lifting drive source 331 , a rotating drive screw 332 and a lifting linkage slider 333 ;
  • the lifting linkage slider 333 is slidably set in the lifting running seat 310, and the end of the lifting linkage slider 333 is connected with the traction adjustment point;
  • the rotating driving screw 332 is set in the lifting running seat 310, and the The rotating driving screw 332 passes through the lifting linkage slider 333 and forms a thread fit;
  • the lifting driving source 331 is adjacently arranged on one side of the lifting column seat 100 and is on the same axis as the rotating driving screw 332 , the The output shaft of the lifting driving source 331 is connected with the rotating driving screw 332 .
  • the lifting driving source 331 can drive the rotating driving screw 332 to rotate so that the lifting linkage slider 333 moves along the rotating driving screw 332 .
  • the lifting driving source 331 acts, and then drives the rotating driving screw 332 to rotate in the lifting running seat 310, and the rotating driving screw 332 drives the lifting
  • the linkage slider 333 moves along the rotating drive screw 332 , thereby realizing the sliding of the traction adjustment point up and down along the height direction of the lifting running seat 310 .
  • the lifting drive unit 330 can provide a stable power output, so that the traction adjustment point can smoothly complete the position change, and has a simple structure and high control precision.
  • the lifting linkage slider 333 is driven by the lifting driving source 331 and the rotating driving screw 332, that is, it is driven by a motor, or driven by a combination of a motor and a reducer, and combined with a screw drive, thereby having a self-locking function. characteristics, it can effectively bear the backward force of the lifting linkage slider 333, the operation is reliable, and the safety is greatly improved.
  • the lifting driving source 331 is installed independently and on the same axis as the rotating driving screw 332, that is, the lifting driving source 331 has no additional leverage loss, so that the rotating driving screw 332 and the lifting The linkage slider 333 can run vertically under force, so the lifting drive source 331 can generate large torsion even by using a small motor, the structure design is reasonable, the traction effect is good, and the service life of each structure is long.
  • one end of the dental chair attachment hanger 200 is fixedly connected to the external dental chair and the dental chair attachment hanger 200 is fixedly connected to the lifting traction
  • One end of the unit 320 is on the same end surface, so that the traction force generated by the lifting traction unit 320 can balance the gravity of the dental chair attachment hanger 200 and the external dental chair.
  • this solution has a novel structure and effectively improves the force bearing.
  • the weight of the dental chair attachment hanger 200 and the external dental chair changes, it only needs to adjust the traction force generated by the lifting traction unit 320 to achieve
  • the dental chair attachment hanger 200 maintains balance at any position, thereby reducing the lifting resistance of the dental chair attachment hanger 200 and the external dental chair, and improving the stability and reliability of the mechanism operation.
  • FIG. 2 there are two groups of lifting and pulling units 320;
  • the center distances of the hanging brackets 200 attached to the dental chair are equal, so that the hanging brackets 200 attached to the dental chair are balanced left and right.
  • the left and right positions of the dental chair attachment hanger 200 can be effectively adjusted so that the dental chair
  • the force on the left and right sides of the attachment hanger 200 is balanced, so that the dental chair attachment hanger 200 can always maintain a good balance, so that the center of gravity of the dental chair attachment hanger 200 can be maintained on the central axis as much as possible.
  • Reduce the friction between the dental chair attachment hanger 200 and the lifting column base 100 ensure that the dental chair attachment hanger 200 moves up and down smoothly on the lifting column base 100, and avoid the friction caused by the dental chair attachment.
  • the equipment damage caused by the asynchronous lifting of the left and right sides of the hanger 200 prolongs the service life.
  • the lifting traction unit 320 includes a traction member 321, an adjusting wheel 322, and several turning wheels 323; the adjusting wheel 322 is slidably disposed on the On the lifting running seat 310 and connected with the driving end of the lifting driving unit 330 to form the traction adjustment point, several steering wheels 323 are rotatably installed on the lifting column base 100, the traction The first end of the member 321 is fixedly connected to the lifting running seat 310, and the second end of the traction member 321 is fixedly connected to the dental chair by bypassing the adjusting wheel 322 and several turning wheels 323 in turn. Attached to the hanger 200.
  • the lifting driving unit 330 drives the adjusting wheel 322 to slide up and down along the height direction of the lifting running seat 310, thereby changing the first end of the traction member 321 to the adjusting wheel 322 and the The length ratio between the second end of the traction member 321 and the rotating wheel 322 is adjusted, so as to realize the lifting operation of the attachment hanger 200 of the dental chair and the external dental chair.
  • the friction between the traction member 321 and the lifting column base 100 during the traction process can be reduced, the wear of the traction member 321 can be prevented, and the safety and service life are greatly improved.
  • the traction member 321 adopts a chain, so when the dental chair attachment hanger 200 hits an object during the descent process, it will not cause strong damage to the object, avoiding the Defects that cause damage to objects when using a screw drive to complete the lift.
  • the lifting running seat 310 is vertically provided with a limiting track 311 along its height direction, and the adjusting wheel 322 is slidably disposed on the limiting track 311 .
  • the adjustment wheel 322 can be limited, reducing the possibility of the adjustment wheel 322 shifting, and avoiding the pulling of the traction member 321. Vibration and noise avoid damage to the traction member 321 and improve the stability of the lifting traction unit 320 in use.
  • the limit rail 311 adopts a vertical vertical design, so the side force is very large. At this time, the height of the lifting drive unit 330 makes the lift not high enough.
  • the lifting column seat 100 includes an upper top plate 110 , a lower bottom plate 120 and a lifting guide post 130 ; the lifting guide post 130 is vertically arranged on the upper top plate 110 Between the lower base plate 120, the dental chair attachment hanger 200 is slidably sleeved on the lifting guide column 130 and slides up and down along the lifting guide column 130; the hanger lifting mechanism 300 is installed on the The upper top plate 110 is fixedly connected with the dental chair attachment hanger 200 .
  • the dental chair attachment hanger 200 is evenly provided with several rollers 210 rollingly connected to the lifting guide column 130 along its circumferential direction, and the dental chair attachment hanger 200 is slidably fitted by several rollers 210 on the lifting guide column 130 .
  • the dental chair attachment hanger 200 is guided, so that the dental chair attachment hanger 200 can be lifted along the lifting guide post 130. , which is beneficial to ensure the smoothness of the dental chair attachment hanger 200 and the lifting process of the external dental chair.
  • the lifting guide column 130 is a square column
  • the dental chair attachment hanger 200 is correspondingly arranged as a square frame
  • a plurality of the rollers 210 are arranged along the dental chair attachment hanger 200.
  • the circumferential direction of the dental chair is evenly arranged on the four sides of the square frame, so that the force on each surface of the dental chair attachment hanger 200 is even, effectively preventing the dental chair attachment hanger 200 from shaking during the lifting process, and the balance and Good stability.

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Abstract

一种牙科治疗椅升降结构，包括：升降立柱座（100），升降立柱座（100）置放于平面上；牙椅附着吊架（200），牙椅附着吊架（200）活动安装在升降立柱座（100）中并可沿着升降立柱座（100）的高度方向上下滑动；以及吊架抬升机构（300），吊架抬升机构（300）安装于升降立柱座（100）上，吊架抬升机构（300）的提升端与牙椅附着吊架（200）固定连接，用于驱动牙椅附着吊架（200）平稳升降；其中吊架抬升机构（300）包括抬升运行座（310）、抬升牵引单元（320）以及抬升驱动单元（330），抬升牵引单元（320）的第一端固定连接于抬升运行座（310），第二端依次绕过抬升运行座（310）及升降立柱座（100）而固定连接于牙椅附着吊架（200）上；抬升牵引单元（320）与升降立柱座（100）的绕设点滑动连接于抬升运行座（310）上形成一牵引调节点（322）；抬升驱动单元（330）相邻设置于升降立柱座（100）一侧并与抬升运行座（310）处于同一轴线上，抬升驱动单元（330）的驱动端与牵引调节点（322）相连接；工作时，抬升驱动单元（330）带动牵引调节点（322）沿着抬升运行座（310）的高度方向上下滑动，进而改变抬升牵引单元（320）第一端至牵引调节点（322）与抬升牵引单元（320）第二端至牵引调节点（322）之间的长度比，使得升降结构做匀速平衡直线运动。

Description

牙科治疗椅升降结构 技术领域
本发明属于牙椅技术领域，尤其涉及一种牙科治疗椅升降结构。
背景技术
牙椅是供口腔手术及口腔疾病的检查和治疗用。多采用电动式牙科椅，整机籍底板固定于地面，并通过支架将底板与牙科椅的上部联接，牙科椅的动作受控于椅背上的控制开关，其工作原理是：控制开关启动电动机运转并带动传动机构工作，使牙科椅相应部件产生移动。根据治疗需要，操纵控制开关按扭，牙科椅可完成上升、下降、俯、仰体位和复位等动作。目前牙科椅已知的升降机构大多为在座垫下采用机械连杆的方式，其结构需要较大的空间，使牙科椅的下调位置受到限制，给病人及医生的操作带来诸多不便。
发明内容
本发明的目的在于提供一种牙科治疗椅升降结构，旨在解决现有技术中的牙科椅已知的升降机构采用机械连杆的方式，其结构需要较大的空间，使牙科椅的下调位置受到限制的技术问题。
为实现上述目的，本发明实施例提供的一种牙科治疗椅升降结构，包括：
升降立柱座，所述升降立柱座置放于平面上，用于起导向作用；
牙椅附着吊架，所述牙椅附着吊架活动安装在所述升降立柱座中并可沿着该升降立柱座的高度方向上下滑动，用于安装外部牙椅；
以及吊架抬升机构，所述吊架抬升机构安装于所述升降立柱座上，所述吊 架抬升机构的提升端与所述牙椅附着吊架固定连接，用于驱动该牙椅附着吊架平稳升降。
可选地，所述吊架抬升机构包括：
抬升运行座，所述抬升运行座固定连接于所述升降立柱座上；
抬升牵引单元，所述抬升牵引单元的第一端固定连接于所述抬升运行座，所述抬升牵引单元的第二端依次绕过所述抬升运行座及所述升降立柱座而固定连接于所述牙椅附着吊架上；所述抬升牵引单元与所述升降立柱座的绕设点滑动连接于所述抬升运行座上形成一牵引调节点；
以及抬升驱动单元，所述抬升驱动单元相邻设置于所述升降立柱座一侧并与所述抬升运行座处于同一轴线上，所述抬升驱动单元的驱动端与所述牵引调节点相连接；
其中，所述抬升驱动单元带动所述牵引调节点沿着所述抬升运行座的高度方向上下滑动，进而改变所述抬升牵引单元第一端至所述牵引调节点与所述抬升牵引单元第二端至所述牵引调节点之间的长度比。
可选地，所述抬升驱动单元包括抬升驱动源、旋转驱动螺杆和抬升联动滑块；所述抬升联动滑块滑动设置于所述抬升运行座中，所述抬升联动滑块的端部与所述牵引调节点相连接；所述旋转驱动螺杆转动设置于所述抬升运行座中，所述旋转驱动螺杆贯穿所述抬升联动滑块并形成螺纹配合；所述抬升驱动源相邻设置于所述升降立柱座一侧并与所述旋转驱动螺杆处于同一轴线上，所述抬升驱动源的输出轴与所述旋转驱动螺杆相连接。
可选地，所述牙椅附着吊架相固定连接于外部牙椅的一端与所述牙椅附着吊架相固定连接于所述抬升牵引单元的一端处于同一端面上，以使得所述抬升牵引单元产生的牵引力以平衡所述牙椅附着吊架及外部牙椅的重力。
可选地，所述抬升牵引单元设置有两组；两组所述抬升牵引单元与所述牙椅附着吊架的连接处距离所述牙椅附着吊架的中心距离相等，以使得所述牙椅附着吊架左右平衡。
可选地，所述抬升牵引单元包括牵引件、调节转轮和若干转向转轮；所述调节转轮滑动设置于所述抬升运行座上并与所述抬升驱动单元的驱动端相连接而形成所述牵引调节点，若干所述转向转轮可旋转地安装在所述升降立柱座上，所述牵引件的第一端固定连接于所述抬升运行座，所述牵引件的第二端依次绕过所述调节转轮及若干所述转向转轮而固定连接于所述牙椅附着吊架上。
可选地，所述抬升运行座沿其高度方向竖直开设有一限位轨道，所述调节转轮滑动设置于所述限位轨道中并沿着该限位轨道运动，进而牵动所述牵引件。
可选地，所述升降立柱座包括上顶板、下底板和升降导柱；所述升降导柱垂直设置在所述上顶板和所述下底板之间，所述牙椅附着吊架滑动套设在所述升降导柱上并沿着该升降导柱上下滑动；所述吊架抬升机构安装在所述上顶板上并与所述牙椅附着吊架固定连接。
可选地，所述牙椅附着吊架沿其圆周方向均匀设置有若干个滚动连接于所述升降导柱上的滚轮，所述牙椅附着吊架通过若干个所述滚轮滑动配合于所述升降导柱上。
本发明实施例提供的牙科治疗椅升降结构中的上述一个或多个技术方案至少具有如下技术效果之一：该牙科治疗椅升降结构中的牙椅附着吊架活动安装在升降立柱座中，吊架抬升机构的提升端与牙椅附着吊架固定连接，通过牙椅附着吊架固接外部牙椅进而完成该牙科治疗椅升降结构与外部牙椅的组装；该牙科治疗椅升降结构在工作时，吊架抬升机构动作，进而驱动该牙椅附着吊架沿着该升降立柱座的高度方向上下滑动实现平稳升降。由此可见，本发明牙科治疗椅升降结构做匀速平衡直线运动，牙椅升降更平稳，更安全，患者在升降过程中没有漂移和失重感觉，降低了患者对治疗的恐惧心理。与此同时，由于外部牙椅外接于本发明牙科治疗椅升降结构，进而处于不同的升降空间当中，进而实现外部牙椅的悬浮式垂直升降，使得牙椅的下调位置不受限制，增大了医生的工作区域，使医生在工作过程中更加安全、方便、舒适。
附图说明
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性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的牙科治疗椅升降结构的立体图。
图2为本发明实施例提供的牙科治疗椅升降结构的主视图。
图3为本发明实施例提供的牙科治疗椅升降结构的侧视图。
图4为本发明实施例提供的抬升牵引单元的结构示意图。
图5为本发明实施例提供的抬升驱动单元与抬升运行座的连接示意图。
图6为本发明实施例提供的牙椅附着吊架与升降立柱座的连接示意图。
其中，图中各附图标记：
100、升降立柱座；110、上顶板；120、下底板；130、升降导柱；
200、牙椅附着吊架；210、滚轮；
300、吊架抬升机构；310、抬升运行座；311、限位轨道；320、抬升牵引单元；321、牵引件；322、调节转轮；323、转向转轮；330、抬升驱动单元；331、抬升驱动源；332、旋转驱动螺杆；333、抬升联动滑块。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明的实施例，而不能理解为对本发明的限制。
在本发明实施例的描述中，需要理解的是，术语“长度”、“宽度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外” 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实施例和简化描述，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，因此不能理解为对本发明的限制。
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个该特征。在本发明实施例的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明实施例中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。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在本发明实施例中的具体含义。
在本发明的一个实施例中，如图1～3所示，提供一种牙科治疗椅升降结构，包括：
升降立柱座100，所述升降立柱座100置放于平面上，用于起导向作用；
牙椅附着吊架200，所述牙椅附着吊架200活动安装在所述升降立柱座100中并可沿着该升降立柱座100的高度方向上下滑动，用于安装外部牙椅；
以及吊架抬升机构300，所述吊架抬升机构300安装于所述升降立柱座100上，所述吊架抬升机构300的提升端与所述牙椅附着吊架200固定连接，用于驱动该牙椅附着吊架200平稳升降。
具体地，该牙科治疗椅升降结构中的所述牙椅附着吊架200活动安装在所述升降立柱座100中，所述吊架抬升机构300的提升端与所述牙椅附着吊架200固定连接，通过所述牙椅附着吊架200固接外部牙椅进而完成该牙科治疗椅升降结构与外部牙椅的组装；该牙科治疗椅升降结构在工作时，所述吊架抬升机构300动作，进而驱动该牙椅附着吊架200沿着该升降立柱座100的高度方向 上下滑动实现平稳升降。由此可见，本发明牙科治疗椅升降结构做匀速平衡直线运动，牙椅升降更平稳，更安全，患者在升降过程中没有漂移和失重感觉，降低了患者对治疗的恐惧心理。
与此同时，由于外部牙椅外接于本发明牙科治疗椅升降结构，进而处于不同的升降空间当中，进而实现外部牙椅的悬浮式垂直升降，使得牙椅的下调位置不受限制，增大了医生的工作区域，使医生在工作过程中更加安全、方便、舒适。
在本发明的另一个实施例中，如图1～3所示，所述吊架抬升机构300包括：
抬升运行座310，所述抬升运行座310固定连接于所述升降立柱座100上；
抬升牵引单元320，所述抬升牵引单元320的第一端固定连接于所述抬升运行座310，所述抬升牵引单元320的第二端依次绕过所述抬升运行座310及所述升降立柱座100而固定连接于所述牙椅附着吊架200上；所述抬升牵引单元320与所述升降立柱座100的绕设点滑动连接于所述抬升运行座310上形成一牵引调节点；
以及抬升驱动单元330，所述抬升驱动单元330相邻设置于所述升降立柱座100一侧并与所述抬升运行座310处于同一轴线上，所述抬升驱动单元330的驱动端与所述牵引调节点相连接；
其中，所述抬升驱动单元330带动所述牵引调节点沿着所述抬升运行座310的高度方向上下滑动，进而改变所述抬升牵引单元320第一端至所述牵引调节点与所述抬升牵引单元320第二端至所述牵引调节点之间的长度比。
具体地，在所述牙椅附着吊架200及外部牙椅上升的过程中，所述抬升驱动单元330带动所述牵引调节点沿着所述抬升运行座310的高度方向向下滑动，此时所述抬升牵引单元320第一端至所述牵引调节点的长度逐渐增长，而所述抬升牵引单元320第二端至所述牵引调节点的长度逐渐缩短，进而实现所述牙椅附着吊架200及外部牙椅沿着所述升降立柱座100的高度方向向上滑动实现平稳上升。
而在所述牙椅附着吊架200及外部牙椅下降的过程中，所述抬升驱动单元330带动所述牵引调节点沿着所述抬升运行座310的高度方向向上滑动，此时所述抬升牵引单元320第一端至所述牵引调节点的长度逐渐缩短，而所述抬升牵引单元320第二端至所述牵引调节点的长度逐渐增长，进而实现所述牙椅附着吊架200及外部牙椅沿着所述升降立柱座100的高度方向向下滑动实现平稳下降。
由此可见，所述吊架抬升机构300在所述抬升运行座310、所述抬升牵引单元320和所述抬升驱动单元330的配合下能够实现外部牙椅的升降，方便用户将外部牙椅调整至合适的高度，泛用性强。
此外，所述吊架抬升机构300实现了倍速的上升以及下降，当所述抬升驱动单元330带动所述牵引调节点沿着所述抬升运行座310的高度方向推动一公分行程时，所述牙椅附着吊架200及外部牙椅就会沿着所述升降立柱座100的高度方向推动两公分高度，减少了高速运转的摩擦，增加了使用的寿命。
在本发明的另一个实施例中，如图1～3和图5所示，所述抬升驱动单元330包括抬升驱动源331、旋转驱动螺杆332和抬升联动滑块333；所述抬升联动滑块333滑动设置于所述抬升运行座310中，所述抬升联动滑块333的端部与所述牵引调节点相连接；所述旋转驱动螺杆332转动设置于所述抬升运行座310中，所述旋转驱动螺杆332贯穿所述抬升联动滑块333并形成螺纹配合；所述抬升驱动源331相邻设置于所述升降立柱座100一侧并与所述旋转驱动螺杆332处于同一轴线上，所述抬升驱动源331的输出轴与所述旋转驱动螺杆332相连接。
具体地，所述抬升驱动源331可驱动所述旋转驱动螺杆332旋转以使所述抬升联动滑块333沿着该旋转驱动螺杆332移动。其中，所述抬升驱动单元330在工作时，所述抬升驱动源331动作，进而驱动所述旋转驱动螺杆332在所述抬升运行座310中旋转，而所述旋转驱动螺杆332则驱动所述抬升联动滑块333沿着该旋转驱动螺杆332移动，进而实现所述牵引调节点沿着所述抬升运行座 310的高度方向上下滑动。由此可见，所述抬升驱动单元330能够提供稳定的动力输出，使得所述牵引调节点平稳地完成位置的变换，结构简单且控制精度高。
其中，由于所述抬升联动滑块333采用所述抬升驱动源331配合所述旋转驱动螺杆332驱动，即采用马达驱动、或者马达结合减速机的方式驱动，并结合螺杆传动，由此具有自锁特性，能够有效承载所述抬升联动滑块333的后退作用力，运行可靠，安全性大大提高。
此外，由于所述抬升驱动源331独立安装并与所述旋转驱动螺杆332处于同一轴线上，即所述抬升驱动源331没有额外的杠杆力损耗，进而使得所述旋转驱动螺杆332和所述抬升联动滑块333能够垂直受力运行，因而所述抬升驱动源331采用小马达也能够产生大扭力，结构设计合理，牵引效果好，并且各结构的使用寿命长。
在本发明的另一个实施例中，如图3所示，所述牙椅附着吊架200相固定连接于外部牙椅的一端与所述牙椅附着吊架200相固定连接于所述抬升牵引单元320的一端处于同一端面上，以使得所述抬升牵引单元320产生的牵引力以平衡所述牙椅附着吊架200及外部牙椅的重力。
具体地，该方案结构新颖，有效改善受力，当所述牙椅附着吊架200及外部牙椅承受的重量发生改变时，只需要通过调节所述抬升牵引单元320产生的牵引力，从而来实现所述牙椅附着吊架200在任意位置保持平衡，进而减小所述牙椅附着吊架200及外部牙椅的升降阻力，提高了机构运行的平稳性和可靠性。
在本发明的另一个实施例中，如图2所示，所述抬升牵引单元320设置有两组；两组所述抬升牵引单元320与所述牙椅附着吊架200的连接处距离所述牙椅附着吊架200的中心距离相等，以使得所述牙椅附着吊架200左右平衡。
具体地，通过设置两组所述抬升牵引单元320分别牵制所述牙椅附着吊架200左右两侧，能有效对所述牙椅附着吊架200重心的左右位置进行调整，使得所述牙椅附着吊架200左右两侧受力平衡，从而调整并使得所述牙椅附着吊架 200始终能够保持较好的平衡性，使得所述牙椅附着吊架200重心尽可能维持在中轴线上，减小所述牙椅附着吊架200与所述升降立柱座100之间的摩擦，保证所述牙椅附着吊架200在所述升降立柱座100上平稳升降，避免了因所述牙椅附着吊架200左右两侧升降不同步而造成的设备损坏，延长了使用寿命。
在本发明的另一个实施例中，如图1～4所示，所述抬升牵引单元320包括牵引件321、调节转轮322和若干转向转轮323；所述调节转轮322滑动设置于所述抬升运行座310上并与所述抬升驱动单元330的驱动端相连接而形成所述牵引调节点，若干所述转向转轮323可旋转地安装在所述升降立柱座100上，所述牵引件321的第一端固定连接于所述抬升运行座310，所述牵引件321的第二端依次绕过所述调节转轮322及若干所述转向转轮323而固定连接于所述牙椅附着吊架200上。
具体地，所述抬升驱动单元330驱动所述调节转轮322沿着所述抬升运行座310的高度方向上下滑动，进而改变所述牵引件321第一端至所述调节转轮322与所述牵引件321第二端至所述调节转轮322之间的长度比，由此实现对所述牙椅附着吊架200及外部牙椅的升降作业。此外，通过设置若干所述转向转轮323，能够减少所述牵引件321在牵引过程中与所述升降立柱座100的摩擦，防止所述牵引件321磨损，大大提高了安全性及使用寿命。
其中，在本实施例中，所述牵引件321采用链条，因而当所述牙椅附着吊架200在下降过程中碰压到物体时，不会对物体造成强力的破坏，避免了传统技术中使用螺杆驱动完成升降时对物体造成伤害的缺陷。
在本发明的另一个实施例中，如图1和图3所示，所述抬升运行座310沿其高度方向竖直开设有一限位轨道311，所述调节转轮322滑动设置于所述限位轨道311中并沿着该限位轨道311运动，进而牵动所述牵引件321。
具体地，通过设置所述限位轨道311，能够对所述调节转轮322进行限位，减少了所述调节转轮322发生偏移的可能性，避免了所述牵引件321在牵引时产生摆动和噪音，避免对所述牵引件321造成损伤，提高了所述抬升牵引单元 320使用时的稳定性。与此同时，所述限位轨道311采用上下垂直的设计，进而侧力很大，此时所述抬升驱动单元330的高度使得扬程升不高。
在本发明的另一个实施例中，如图6所示，所述升降立柱座100包括上顶板110、下底板120和升降导柱130；所述升降导柱130垂直设置在所述上顶板110和所述下底板120之间，所述牙椅附着吊架200滑动套设在所述升降导柱130上并沿着该升降导柱130上下滑动；所述吊架抬升机构300安装在所述上顶板110上并与所述牙椅附着吊架200固定连接。
其中，所述牙椅附着吊架200沿其圆周方向均匀设置有若干个滚动连接于所述升降导柱130上的滚轮210，所述牙椅附着吊架200通过若干个所述滚轮210滑动配合于所述升降导柱130上。
具体地，通过所述滚轮210与所述升降导柱130的相互配合，对所述牙椅附着吊架200进行导向，使得所述牙椅附着吊架200能够沿着所述升降导柱130升降，有利于保证所述牙椅附着吊架200及外部牙椅的升降过程的平顺性。
此外，在本实施例中，所述升降导柱130为四方立柱，而所述牙椅附着吊架200对应设置为四方框体，多个所述滚轮210沿着所述牙椅附着吊架200的圆周方向均匀布置在四方框体的四方面上，进而使得所述牙椅附着吊架200的各个面受力均匀，有效防止所述牙椅附着吊架200在升降过程中晃动，平衡性和稳定性好。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (9)

  1. 一种牙科治疗椅升降结构，其特征在于，包括：
    升降立柱座，所述升降立柱座置放于平面上，用于起导向作用；
    牙椅附着吊架，所述牙椅附着吊架活动安装在所述升降立柱座中并可沿着该升降立柱座的高度方向上下滑动，用于安装外部牙椅；
    以及吊架抬升机构，所述吊架抬升机构安装于所述升降立柱座上，所述吊架抬升机构的提升端与所述牙椅附着吊架固定连接，用于驱动该牙椅附着吊架平稳升降。
  2. 根据权利要求1所述的牙科治疗椅升降结构，其特征在于：所述吊架抬升机构包括：
    抬升运行座，所述抬升运行座固定连接于所述升降立柱座上；
    抬升牵引单元，所述抬升牵引单元的第一端固定连接于所述抬升运行座，所述抬升牵引单元的第二端依次绕过所述抬升运行座及所述升降立柱座而固定连接于所述牙椅附着吊架上；所述抬升牵引单元与所述升降立柱座的绕设点滑动连接于所述抬升运行座上形成一牵引调节点；
    以及抬升驱动单元，所述抬升驱动单元相邻设置于所述升降立柱座一侧并与所述抬升运行座处于同一轴线上，所述抬升驱动单元的驱动端与所述牵引调节点相连接；
    其中，所述抬升驱动单元带动所述牵引调节点沿着所述抬升运行座的高度方向上下滑动，进而改变所述抬升牵引单元第一端至所述牵引调节点与所述抬升牵引单元第二端至所述牵引调节点之间的长度比。
  3. 根据权利要求2所述的牙科治疗椅升降结构，其特征在于：所述抬升驱动单元包括抬升驱动源、旋转驱动螺杆和抬升联动滑块；所述抬升联动滑块滑动设置于所述抬升运行座中，所述抬升联动滑块的端部与所述牵引调节点相连接；所述旋转驱动螺杆转动设置于所述抬升运行座中，所述旋转驱动螺杆贯穿 所述抬升联动滑块并形成螺纹配合；所述抬升驱动源相邻设置于所述升降立柱座一侧并与所述旋转驱动螺杆处于同一轴线上，所述抬升驱动源的输出轴与所述旋转驱动螺杆相连接。
  4. 根据权利要求2所述的牙科治疗椅升降结构，其特征在于：所述牙椅附着吊架相固定连接于外部牙椅的一端与所述牙椅附着吊架相固定连接于所述抬升牵引单元的一端处于同一端面上，以使得所述抬升牵引单元产生的牵引力以平衡所述牙椅附着吊架及外部牙椅的重力。
  5. 根据权利要求2所述的牙科治疗椅升降结构，其特征在于：所述抬升牵引单元设置有两组；两组所述抬升牵引单元与所述牙椅附着吊架的连接处距离所述牙椅附着吊架的中心距离相等，以使得所述牙椅附着吊架左右平衡。
  6. 根据权利要求2所述的牙科治疗椅升降结构，其特征在于：所述抬升牵引单元包括牵引件、调节转轮和若干转向转轮；所述调节转轮滑动设置于所述抬升运行座上并与所述抬升驱动单元的驱动端相连接而形成所述牵引调节点，若干所述转向转轮可旋转地安装在所述升降立柱座上，所述牵引件的第一端固定连接于所述抬升运行座，所述牵引件的第二端依次绕过所述调节转轮及若干所述转向转轮而固定连接于所述牙椅附着吊架上。
  7. 根据权利要求6所述的牙科治疗椅升降结构，其特征在于：所述抬升运行座沿其高度方向竖直开设有一限位轨道，所述调节转轮滑动设置于所述限位轨道中并沿着该限位轨道运动，进而牵动所述牵引件。
  8. 根据权利要求1-7任意一项所述的牙科治疗椅升降结构，其特征在于：所述升降立柱座包括上顶板、下底板和升降导柱；所述升降导柱垂直设置在所述上顶板和所述下底板之间，所述牙椅附着吊架滑动套设在所述升降导柱上并沿着该升降导柱上下滑动；所述吊架抬升机构安装在所述上顶板上并与所述牙椅附着吊架固定连接。
  9. 根据权利要求8所述的牙科治疗椅升降结构，其特征在于：所述牙椅附着吊架沿其圆周方向均匀设置有若干个滚动连接于所述升降导柱上的滚轮，所 述牙椅附着吊架通过若干个所述滚轮滑动配合于所述升降导柱上。
PCT/CN2022/088896 2022-02-15 2022-04-25 牙科治疗椅升降结构 WO2023155293A1 (zh)

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JPH11322284A (ja) * 1998-05-19 1999-11-24 Inoue Kinzoku Kk 家庭用昇降設備
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