CN113069286A - Level adjusting device and headrest thereof - Google Patents
Level adjusting device and headrest thereof Download PDFInfo
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- CN113069286A CN113069286A CN202110501016.0A CN202110501016A CN113069286A CN 113069286 A CN113069286 A CN 113069286A CN 202110501016 A CN202110501016 A CN 202110501016A CN 113069286 A CN113069286 A CN 113069286A
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- button
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- bearing seat
- horizontal cross
- cross bar
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- 230000009471 action Effects 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/121—Rests specially adapted therefor, e.g. for the head or the feet for head or neck
-
- 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
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Otolaryngology (AREA)
- Seats For Vehicles (AREA)
Abstract
本发明揭示了一种水平调节装置及其头靠，其用于调节水平横杆的伸缩距离，水平横杆的上表面轴向间隔设有复数个定位孔，水平横杆固设在一承载端上；该水平调节装置包括一承座、一按钮和一定位销，水平横杆置于所述承座的空腔内；承座的顶端具有一置放按钮的容置部，按钮的中部设有枢轴连接部，藉由该枢轴连接部可使按钮以枢轴连接部为旋转支点沿其长度方向上下摆动；按钮的前端设有一滑槽，容置部对应于滑槽处设有第一通孔，定位销的一端卡置于滑槽内并可沿滑槽滑动，另一端穿过第一通孔，并通过切换按钮和定位销自重的作用，使定位销是/否插入一定位孔中，从而实现水平横杆两种状态进行切换，相较于现有技术，本发明结构简单且易于调节。
The invention discloses a horizontal adjusting device and a headrest thereof, which are used for adjusting the telescopic distance of a horizontal cross bar. The upper surface of the horizontal cross bar is axially spaced with a plurality of positioning holes, and the horizontal cross bar is fixed at a bearing end. The horizontal adjustment device includes a bearing seat, a button and a positioning pin, and the horizontal cross bar is placed in the cavity of the bearing seat; There is a pivot connection part, through which the button can swing up and down along its length direction with the pivot connection part as the fulcrum of rotation; the front end of the button is provided with a chute, and the accommodating part corresponding to the chute is provided with a first A through hole, one end of the locating pin is clamped in the chute and can slide along the chute, and the other end passes through the first through hole, and through the action of the switch button and the weight of the locating pin, the locating pin is inserted into a certain position. Therefore, the two states of the horizontal cross bar can be switched. Compared with the prior art, the present invention has a simple structure and is easy to adjust.
Description
Technical Field
The invention relates to the technical field of wheelchair headrests, in particular to a horizontal adjusting device and a headrest thereof.
Background
Chinese patent publication No. CN110680636A discloses a wheelchair headrest, which, as shown in fig. 1 and 2, includes a headrest body 3 ' and a frame rod 2 ' supporting the headrest body 3 ', a horizontal cross bar 1 ' is extended backward from the center of the back of the headrest body 3 ', and a plurality of positioning holes 11 ' are axially spaced on the upper surface of the horizontal cross bar 1 '; the frame rod 2 'is used for supporting the headrest body 3' and fixing the headrest body 3 'on a seat, the frame rod 2' is perpendicular to the horizontal cross rod 1 ', the top of the frame rod 2' is provided with an upper supporting seat 214 'matched with the horizontal cross rod 1', the top of the upper supporting seat 214 'is provided with a cavity 213', the horizontal cross rod 1 'is arranged in the cavity 213', and the horizontal position of the horizontal cross rod 1 'is adjusted through a positioning mechanism 25' so as to adapt to people with different heights. The positioning mechanism 25 'includes a cover 251', a second knob 252 ', a positioning pin 253', a second spring 254 'and a clamp ring 255'; the cover 251 'is fixedly connected to the top of the upper supporting seat 214' and covers the cavity 213 ', and the top end of the cover 251' has a receiving portion 2511 'matched with the second knob 252'; the second knob 252 ' is placed in the accommodating portion 2511 ', and the positioning pin 253 ' sequentially passes through the second knob 252 ' and the cover 251 ' from top to bottom and is inserted into a positioning hole 11 ' of the horizontal cross bar 1 ', so that the horizontal cross bar 1 ' can be fixed on the top of the upper support base 214 ', and the horizontal cross bar 1 ' and the upper support base 214 ' are arranged in a linkage manner. The lower part of the positioning pin 253 ' is provided with a second annular groove 2531 ', and the snap ring 255 ' is arranged on the horizontal cross bar 1 ' and sleeved in the second annular groove 2531 '; the lower surface of the sealing cover 251 'is provided with a concave part 2513', and the second spring 254 'is sleeved on the positioning pin 253' and clamped between the concave part 2513 'and the clamping ring 255'; a second upper positioning post 2521 ' and a second lower positioning post 2522 ' are disposed on two opposite sides of the lower end surface of the second knob 252 '; the accommodating portion 2511 ' is provided with a second groove group J and a second sliding groove g corresponding to the second upper positioning column 2521 ' and the second lower positioning column 2522 ', respectively, the second groove group J includes at least two second grooves J1 sequentially arranged along the circumference, the second upper positioning column 2521 ' is inserted into a second groove J1, and the second lower positioning column 2522 ' is inserted into the second sliding groove g and can be slidably arranged along the second sliding groove g. When the horizontal position of the horizontal bar 1 ' fixed on the upper supporting seat 214 ' is to be adjusted, the lower portion of the second knob 252 ' is pressed and rotated, the second upper positioning post 2521 ' tilts and is transferred to another second groove J1 ', then the second knob 252 ' is loosened, and under the action of the second spring 254 ', the second lower positioning post 2522 ' slides to a certain displacement along the second sliding slot g, and the positioning pin 253 ' is separated from the horizontal bar 1 ', so that the horizontal position of the horizontal bar 1 ' can be adjusted to adapt to people with different heights. However, the structure of the patent is complex, which undoubtedly increases the processing difficulty and increases the manufacturing cost of manufacturers.
In view of the above, the present inventors have made extensive studies on the above-mentioned drawbacks of the prior art, and have made this invention.
Disclosure of Invention
A first object of the present invention is to provide a level adjustment device which is simple in structure and easy to adjust.
The second purpose of the present invention is to provide a headrest using the horizontal adjusting device, which can conveniently realize the function of adjusting the length of the headrest along the axial direction of the horizontal cross bar.
In order to achieve the first object, the invention discloses a horizontal adjusting device, which is used for adjusting the telescopic distance of a horizontal cross rod, wherein a plurality of positioning holes are axially arranged on the upper surface of the horizontal cross rod at intervals, and the horizontal cross rod is fixedly arranged on a bearing end; the horizontal adjusting device comprises a bearing seat, a button and a positioning pin, wherein the bearing seat is provided with a cavity, and the horizontal cross rod is arranged in the cavity; the top end of the bearing seat is provided with an accommodating part matched with the button, the button is placed in the accommodating part, the middle part of the button is provided with a pivot connecting part, and the pivot connecting part can enable the button to swing up and down along the length direction of the button by taking the pivot connecting part as a rotating fulcrum; the front end of the button is provided with a sliding groove, the accommodating part is provided with a first through hole corresponding to the sliding groove, one end of the positioning pin is clamped in the sliding groove and can slide along the sliding groove, the other end of the positioning pin passes through the first through hole and can be inserted into a positioning hole of the horizontal cross rod under the action of self weight, and the horizontal cross rod is in a locking state at the moment; the front end of the button swings upwards under the action of external force to drive the positioning pin to move upwards until the positioning pin is separated from the positioning hole, and the horizontal cross rod is in an unlocking state at the moment.
By adopting the design, the rear end of the button is pressed downwards, so that the front end of the button swings upwards along the length direction of the button by taking the pivot connection part as a rotation fulcrum, the positioning pin is driven to move upwards until the positioning pin leaves the positioning hole, the positioning pin moves relatively along the sliding groove, and at the moment, the horizontal cross rod is in an unlocking state, and the telescopic distance of the horizontal cross rod relative to the bearing seat can be adjusted; when the external force disappears, the positioning pin moves downwards into the positioning hole under the action of self weight, the front end of the button is driven to swing downwards along the length direction of the button by taking the pivot connecting part as a rotating fulcrum, the positioning pin moves relatively along the sliding groove, and the horizontal cross rod is in a locking state at the moment, so that the telescopic distance of the horizontal cross rod is fixed. Compared with the prior art, the invention has simple structure and is easy to adjust.
Further, the spring is arranged between the rear end of the button and the accommodating part, acts on the button, and after external force disappears, the spring exerts elastic restoring force on the button, so that the front end of the button swings downwards by taking the pivot connection part as a rotation fulcrum, the positioning pin is driven to move downwards and is inserted into a positioning hole, and the horizontal cross rod is in a locking state at the moment.
By adopting the design, after the external force disappears, the positioning pin can be more stably inserted into the positioning hole under the dual functions of the elastic restoring force applied to the button by the spring and the self weight of the positioning pin, and then the horizontal cross rod is in a locking state.
Furthermore, a bushing is additionally arranged between the positioning pin and the first through hole and is made of metal materials; the bush is embedded in the first through hole, the bush is provided with a second through hole, and the positioning pin penetrates through the second through hole. With the arrangement, the lining plays a role in guiding, and the lining made of metal materials is more wear-resistant.
Further, the positioning pin has a spherical mating part at one end facing the sliding groove. So set up, when the locating pin produced relative movement along the spout, the setting of sphere cooperation portion made the sliding friction between locating pin and the spout reduce, made the button more nimble at the switching in-process.
Furthermore, the rear end of the button is recessed downwards to form a pressing part.
Furthermore, the rear end of the bottom surface of the accommodating part is provided with an inclined surface with gradually rising height from back to front along the length direction of the accommodating part. The inclined plane can provide yielding space on the premise that the accommodating part is low in height, so that the button can swing up and down along the length direction by taking the pivot connection part as a rotation fulcrum.
Furthermore, a runway-shaped limiting hole is formed in the upper surface of the horizontal cross rod behind the positioning hole in the tail end. The horizontal cross bar is used for prompting the user that the horizontal cross bar extends to the tail end and preventing the horizontal cross bar from being separated from the bearing seat.
Furthermore, one side surface of the horizontal cross rod is provided with scale marks corresponding to the positioning holes at intervals, and the bearing seat is provided with a visible window corresponding to the scale marks. The user can realize adjusting the telescopic distance of the horizontal cross rod more intuitively and more accurately.
Furthermore, the bearing is split type design, divide into left bearing and right bearing, left side bearing and right bearing opposite direction set up and mutual rigid coupling. So set up, be convenient for the button to install in the holding portion.
Furthermore, the device also comprises a cover body, a plurality of inserting blocks and a plurality of screws, wherein the left side and the right side of each inserting block are respectively inserted into one end of the left bearing seat and the right bearing seat which are opposite, and the ends of the left bearing seat and the right bearing seat are mutually fixed through the plurality of screws; the other ends of the left bearing seat and the right bearing seat which are opposite are mutually fixed through a cover body.
Furthermore, the pivot connection part is a pivot extended from the bottom of the button, the pivot extends outwards along the width direction of the button to form a protruding section, the accommodating part is provided with a concave part at the position corresponding to the pivot, the left side and the right side of the concave part are respectively provided with pivot holes, and the protruding section of the pivot is clamped in the corresponding pivot hole, so that the button can be connected in the accommodating part in a swinging way.
In order to achieve the second object, the invention discloses a headrest, which comprises the horizontal adjusting device, wherein a headrest is fixedly arranged on the bearing end of the horizontal cross rod, so that the length of the headrest is adjusted along the axial direction of the horizontal cross rod.
By adopting the design, when the horizontal adjusting device is in an unlocking state, the headrest can adjust the length along the axial direction of the horizontal cross rod by adjusting the telescopic distance of the horizontal cross rod relative to the bearing seat so as to adapt to people with different heights.
Drawings
The detailed description, given as a non-limiting example, better explains what the invention includes and can be implemented, and moreover, refers to the accompanying drawings, in which:
figures 1 and 2 show a wheelchair headrest disclosed in publication No. CN 110680636A;
FIG. 3 is an exploded view of the headrest of the wheelchair of the present invention;
FIG. 4 is an exploded view of the leveling device of the present invention;
FIG. 5 is a combination view of the leveling device of the present invention;
FIG. 6 is a schematic view of the leveling device of the present invention in a locked state;
fig. 7 is a schematic view of the horizontal adjustment device of the present invention in an unlocked state.
Description of the figures
100 level adjusting device
1 horizontal cross bar
11 positioning hole
12 runway type limiting hole
2 bearing
2a left bearing seat
2b Right bearing seat
21 cavity
22 locus of containment
221 first through hole
222 recess
223 bevel
224 pivot hole
23 visual window
24 second concave hole
3 push button
31 chute
32 pivot connection
321 protruding section
33 pressing part
34 first concave hole
4 positioning pin
41 spherical surface matching part
5 spring
6 liner bushing
61 second through hole
7 cover body
8 screw
9 inserting block
200 a headrest.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The invention is described in detail below with reference to the figures and the specific embodiments.
As shown in fig. 3 to 7, the present invention discloses a horizontal adjusting device 100 for adjusting the telescopic distance of a horizontal cross bar 1, wherein a plurality of positioning holes 11 are axially arranged on the upper surface of the horizontal cross bar 1 at intervals, and the horizontal cross bar 1 is fixedly arranged on a bearing end. The horizontal adjusting device 100 comprises a bearing seat 2, a button 3, a positioning pin 4 and a spring 5, wherein the bearing seat 2 is provided with a cavity 21, and the horizontal cross rod 1 is arranged in the cavity 21. The top end of the holder 2 has a containing portion 22 matching with the button 3, the button 3 is placed in the containing portion 22, the middle portion of the button 3 is provided with a pivot connection portion 32, the pivot connection portion 32 is a pivot extended from the bottom of the button 3, the pivot extends outward along the width direction of the button 3 to form a protruding section 321, the containing portion 22 is provided with a concave portion 222 corresponding to the pivot, the left and right sides of the concave portion 222 are respectively provided with a pivot hole 224, the two protruding sections 321 of the pivot are clamped in the corresponding pivot holes 224, so that the button 3 can swing up and down along the length direction thereof by using the pivot connection portion 32 as a rotation fulcrum. In this embodiment, the bearing 2 is a split type, and is divided into a left bearing 2a and a right bearing 2b, and the left bearing 2a and the right bearing 2b are oppositely disposed and fixedly connected to each other. So set up, can be very conveniently with the outstanding section 321 joint of pivot in corresponding pivot hole 224, specific mounting means is: the pivot holes 224 of the left bearing seat 2a and the right bearing seat 2b are sleeved on the corresponding protruding sections 321, and then the left bearing seat 2a and the right bearing seat 2b are fixedly connected. One of the fixed connection modes of the left bearing seat 2a and the right bearing seat 2b is as follows: the left bearing seat 2a and the right bearing seat 2b are mutually fixed through a cover body 7, a plurality of inserting blocks 9 and a plurality of screws [1] 8, specifically, the left side and the right side of each inserting block 9 are respectively inserted into the rear ends of the left bearing seat 2a and the right bearing seat 2b, and the rear ends of the left bearing seat 2a and the right bearing seat 2b are mutually fixed through a plurality of screws 8; the front ends of the left bearing seat 2a and the right bearing seat 2b are fixed with each other through a cover body 7.
As shown in fig. 6 and 7, the front end of the button 3 is provided with a sliding slot 31, and the accommodating portion 22 is provided with a first through hole 221 corresponding to the sliding slot 31. One end of the positioning pin 4 is clamped in the sliding groove 31 and can slide along the sliding groove 31, and preferably, the end of the positioning pin 4 is provided with a spherical matching part 41 so as to reduce the sliding friction force between the positioning pin 4 and the sliding groove 31 of the button 3 and enable the button 3 to be more agile in the switching process. The other end of the positioning pin 4 passes through the first through hole 221, preferably, a bushing 6 is additionally arranged between the positioning pin 4 and the first through hole 221, and the bushing 6 is made of a metal material; the bush 6 is embedded in the first through hole 221, the bush 6 is provided with a second through hole 61, and the positioning pin 4 penetrates through the second through hole 61. Bushing 6 plays the guide effect, and prevents that locating pin 4 and first through-hole 221 from contacting each other and producing wearing and tearing, bushing 6 adopts the metal material, and is more wear-resisting. The bottom end of the positioning pin 4 can be inserted into a positioning hole 11 of the horizontal cross rod 1 under the action of self weight, and the horizontal cross rod 1 is in a locking state at the moment. The rear end of the button 3 is recessed downwards to form a pressing part 33, the front end of the button 3 swings upwards under the action of external force by pressing the pressing part 33 downwards, the positioning pin 4 is driven to move upwards until the positioning pin is separated from the positioning hole 11, and the horizontal cross rod 1 is in an unlocking state at the moment, so that the telescopic distance of the horizontal cross rod 1 can be adjusted.
As shown in fig. 6, the rear end of the button 3 is provided with a first concave hole 34, the accommodating portion 22 is provided with a second concave hole 24 corresponding to the first concave hole 34, the two ends of the spring 5 are respectively arranged in the first concave hole 34 and the second concave hole 24, the spring 5 acts on the button 3, after the external force disappears, the spring 5 applies the elastic restoring force to the button 3 and the self weight of the positioning pin 4 to enable the positioning pin 4 to be inserted into the positioning hole 11 more stably, and further enable the horizontal rod 1 to be in the locking state. Of course, in this embodiment, the spring 5 can be eliminated, and the positioning pin 4 can be inserted into the positioning hole 11 of the horizontal cross bar 1 under the action of its own weight, so that the horizontal cross bar 1 is in the locked state.
It should be noted that, in another embodiment: the lower surface of the horizontal cross bar 1 is axially provided with a plurality of positioning holes 11 at intervals, correspondingly, the bottom end of the bearing seat 2 is provided with an accommodating part 22 matched with the button 3, the button 3 is arranged in the accommodating part 22, the positioning pin 4 is arranged between the button 3 and the accommodating part 22, the free end of the positioning pin 4 passes through the first through hole 221 from bottom to top and can be inserted into one positioning hole 11, at the moment, the spring 5 is additionally arranged to act on the button 3, after the external force disappears, the elastic restoring force applied to the button 3 by the spring 5 enables the positioning pin 4 to be stably inserted into one positioning hole 11, and therefore the horizontal cross bar 1 is in a locking state.
As shown in fig. 3, the positioning holes 11 are formed in one side surface of the horizontal cross bar 1 at intervals corresponding to the scale marks, and the bearing seat 2 is provided with a visible window 23 corresponding to the scale marks, so that a user can adjust the telescopic distance of the horizontal cross bar 1 more intuitively and accurately.
As shown in fig. 7, the rear end of the bottom surface of the accommodating portion 22 has a slope 223 with a height gradually increasing from the rear to the front along the length direction thereof. The inclined surface 223 provides a space for the button 3 to swing up and down along the length direction thereof with the pivot connection portion 32 as a rotation fulcrum, on the premise that the accommodating portion 22 is low in height.
As shown in fig. 4, a runway-shaped limiting hole 12 is formed on the upper surface of the horizontal cross bar 1 behind the positioning hole 11 at the tail end to prompt a user that the horizontal cross bar 1 extends to the tail end and prevent the horizontal cross bar 1 from being separated from the bearing seat 2.
The invention is characterized in that: according to the invention, the rear end of the button 3 is pressed downwards, so that the front end of the button 3 swings upwards along the length direction thereof by taking the pivot connection part 32 as a rotation fulcrum, and drives the positioning pin 4 to move upwards until leaving the positioning hole 11, the positioning pin 4 generates relative movement along the sliding groove 31, and at the moment, the horizontal cross rod 1 is in an unlocking state, and the telescopic distance of the horizontal cross rod 1 relative to the bearing seat 2 can be adjusted; after the external force disappears, the positioning pin 4 moves downwards into the positioning hole 11 under the action of self weight, the front end of the button 3 is driven to swing downwards along the length direction of the button by taking the pivot connecting part 32 as a rotating fulcrum, the positioning pin 4 moves relatively along the sliding groove 31, and the horizontal cross rod 1 is in a locking state at the moment, so that the telescopic distance of the horizontal cross rod 1 is fixed.
As shown in fig. 3, the present invention further discloses a headrest 200, wherein the headrest 200 includes the horizontal adjusting device 100, a headrest 200 is fixedly installed on the bearing end of the horizontal cross bar 1, and when the horizontal cross bar 1 is in an unlocked state, the headrest 200 can adjust the length along the axial direction of the horizontal cross bar 1 by adjusting the telescopic distance of the horizontal cross bar 1 relative to the bearing seat 2, so as to adapt to people with different heights.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110501016.0A CN113069286A (en) | 2021-05-08 | 2021-05-08 | Level adjusting device and headrest thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110501016.0A CN113069286A (en) | 2021-05-08 | 2021-05-08 | Level adjusting device and headrest thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113069286A true CN113069286A (en) | 2021-07-06 |
Family
ID=76616373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110501016.0A Pending CN113069286A (en) | 2021-05-08 | 2021-05-08 | Level adjusting device and headrest thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113069286A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3010505U (en) * | 1994-10-21 | 1995-05-02 | 阿石 ▲とぅ▼ | Stretchable positioning control structure for the pull bar of the trunk carrier |
| CN2328241Y (en) * | 1997-12-24 | 1999-07-14 | 周正赞 | Arbitrarily positioned telescopic pull rod control structure of luggage case |
| CN2855294Y (en) * | 2005-12-06 | 2007-01-10 | 杨卫丰 | Expansion pipe of vacuum cleaner |
| CN2928580Y (en) * | 2006-08-02 | 2007-08-01 | 明门实业股份有限公司 | Child car seat supports |
| CN200963713Y (en) * | 2006-10-16 | 2007-10-24 | 南京德朔实业有限公司 | Reciprocating saw with latching supporting rack |
| CN104546321A (en) * | 2013-10-11 | 2015-04-29 | 中山市玫瑰园环境电器有限公司 | Patient transferring chair |
| CN206582492U (en) * | 2017-03-30 | 2017-10-24 | 乐歌人体工学科技股份有限公司 | Computer display stand rotating seat retaining mechanism |
| CN209464217U (en) * | 2019-07-24 | 2019-10-08 | 广东大洋医疗科技股份有限公司 | A kind of up and down adjustment handrail |
| CN214967926U (en) * | 2021-05-08 | 2021-12-03 | 安维车件(厦门)有限公司 | Level adjusting device and headrest thereof |
-
2021
- 2021-05-08 CN CN202110501016.0A patent/CN113069286A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3010505U (en) * | 1994-10-21 | 1995-05-02 | 阿石 ▲とぅ▼ | Stretchable positioning control structure for the pull bar of the trunk carrier |
| CN2328241Y (en) * | 1997-12-24 | 1999-07-14 | 周正赞 | Arbitrarily positioned telescopic pull rod control structure of luggage case |
| CN2855294Y (en) * | 2005-12-06 | 2007-01-10 | 杨卫丰 | Expansion pipe of vacuum cleaner |
| CN2928580Y (en) * | 2006-08-02 | 2007-08-01 | 明门实业股份有限公司 | Child car seat supports |
| CN200963713Y (en) * | 2006-10-16 | 2007-10-24 | 南京德朔实业有限公司 | Reciprocating saw with latching supporting rack |
| CN104546321A (en) * | 2013-10-11 | 2015-04-29 | 中山市玫瑰园环境电器有限公司 | Patient transferring chair |
| CN206582492U (en) * | 2017-03-30 | 2017-10-24 | 乐歌人体工学科技股份有限公司 | Computer display stand rotating seat retaining mechanism |
| CN209464217U (en) * | 2019-07-24 | 2019-10-08 | 广东大洋医疗科技股份有限公司 | A kind of up and down adjustment handrail |
| CN214967926U (en) * | 2021-05-08 | 2021-12-03 | 安维车件(厦门)有限公司 | Level adjusting device and headrest thereof |
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