CN110101517B - Swing arm for keeping fixed swing angle of head connecting piece - Google Patents
Swing arm for keeping fixed swing angle of head connecting piece Download PDFInfo
- Publication number
- CN110101517B CN110101517B CN201811346464.2A CN201811346464A CN110101517B CN 110101517 B CN110101517 B CN 110101517B CN 201811346464 A CN201811346464 A CN 201811346464A CN 110101517 B CN110101517 B CN 110101517B
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- China
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- connecting piece
- swing arm
- head
- rotating shaft
- piece
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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
- A61G5/14—Standing-up or sitting-down aids
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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)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a swing arm for keeping the swing angle of a head connecting piece fixed, one end of the swing arm is hinged on a mounting piece, and the other end of the swing arm is hinged with the head connecting piece, and the swing arm is characterized in that: the swing arm comprises a first connecting piece, a second connecting piece and an intermediate connecting piece, wherein the first connecting piece is connected with the mounting piece, the second connecting piece is connected with the head connecting piece, the intermediate connecting piece is connected between the first connecting piece and the second connecting piece, preferably, the first connecting piece, the second connecting piece and the intermediate connecting piece form a four-bar mechanism, and the head connecting piece which is connected with the swing arm can be ensured to be always fixed in angle during swing.
Description
Technical Field
The invention relates to a swing arm for transmitting power or movement direction, in particular to a swing arm with a fixed swing angle of a head-holding connecting piece.
Background
In many existing mechanical designs, a swing arm structure capable of swinging up and down is used for transmitting power or movement direction, for example, a standing rehabilitation wheelchair disclosed in patent No. ZL201610715530.3 is a device for assisting the disabled or the elderly to stand, wherein the swing arm structure is used, one end of a swing arm assembly is connected with a frame, the other end of the swing arm assembly is connected with a waist support cushion, and the swing arm swings up and down to assist the user in switching between standing and sitting postures.
If the swing arm of the standing rehabilitation wheelchair disclosed by the invention patent ZL201610715530.3 can ensure that the waist support cushion of the swing arm always keeps an angle when the swing arm swings, and the waist support cushion of the swing arm always fits the abdomen of a user when the user switches between standing and sitting postures, so that more comfort can be provided for the user.
Therefore, it is necessary to design a new swing arm transmission device, which can ensure that the head connecting piece connected with the swing arm transmission device is always kept at a fixed angle during the swing.
Disclosure of Invention
The invention discloses a swing arm for keeping the swing angle of a head connecting piece fixed, which can ensure that the head connecting piece connected with the head connecting piece is always kept at the fixed angle when the head connecting piece swings, so that the head connecting piece does not generate unnecessary rotary motion to interfere with other places, one end of the swing arm is hinged on a mounting piece, the other end of the swing arm is hinged with the head connecting piece, the swing arm comprises a first connecting piece, a second connecting piece and an intermediate connecting piece, the first connecting piece is connected with the mounting piece, the second connecting piece is connected with the head connecting piece, and the intermediate connecting piece is connected between the first connecting piece and the second connecting piece.
Preferably, the first connecting piece, the second connecting piece and the intermediate connecting piece form a four-bar linkage.
Preferably, the first connecting piece comprises a rotating shaft m, a fixing piece b and a connecting rod d, wherein the rotating shaft m is installed on the installation piece, the fixing piece b is fixedly connected to the rotating shaft m, and the connecting rod d is hinged with the fixing piece b; the second connecting piece comprises a rotating shaft m ', a fixing piece b' and a connecting rod d ', wherein the rotating shaft m' is arranged on the head connecting piece, the fixing piece b 'is fixedly connected to the rotating shaft m', and the connecting rod d 'is hinged with the fixing piece b'; the intermediate connection member is connected between the connecting rod d and the connecting rod d'.
Preferably, the connecting rod d and the connecting rod d' are of an arc-shaped rod structure.
Preferably, the first connection member includes a rotation axis a and a rotation axis a ', the second connection member includes a rotation axis c and a rotation axis c ', and the intermediate connection member includes a connection rod e and a connection rod e '; the rotating shaft a is arranged on the mounting piece, one end of the connecting rod e is connected with the rotating shaft a, the other end of the connecting rod e is connected with the rotating shaft c, and the rotating shaft c is arranged on the head connecting piece; the rotating shaft a 'is arranged on the mounting piece, one end of the connecting rod e' is connected with the rotating shaft a ', the other end of the connecting rod e' is connected with the rotating shaft c ', and the rotating shaft c' is arranged on the head connecting piece; the mounting part, the rotating shafts a and a ', the connecting rods e and e ', the rotating shafts c and c ' and the head connecting part form a parallelogram structure.
Preferably, the first connecting piece comprises a rotating shaft k, a bevel gear x and a bevel gear y, wherein the rotating shaft k is installed on the installation piece, the bevel gear x is sleeved on the rotating shaft k, and the bevel gear x is meshed with the bevel gear y; the second connecting piece comprises a rotating shaft k ', a bevel gear x' and a bevel gear y ', wherein the rotating shaft k' is arranged on the head connecting piece, the bevel gear x 'is sleeved on the rotating shaft k', and the bevel gear x 'is meshed with the bevel gear y'; the intermediate coupling is coupled between the bevel gears y and y'.
Preferably, the intermediate connection is a telescopic intermediate connection.
Preferably, the portable electronic device further comprises a shell, wherein the shell comprises 2 boxes and an outer sleeve, the first connecting pieces and the second connecting pieces are respectively installed in the boxes, the middle connecting pieces are connected between the first connecting pieces and the second connecting pieces, and the outer sleeve is connected between the 2 boxes.
The swing arm for keeping the swing angle of the head connecting piece fixed provided by the invention has the following beneficial effects:
1. the swing arm for keeping the swing angle of the head connecting piece fixed can ensure that the head connecting piece connected with the swing arm is always kept at the fixed angle when the swing arm swings, so that the head connecting piece cannot generate unnecessary rotary motion to interfere with other places.
2. The swing arm for keeping the swing angle of the head connecting piece fixed can ensure that the transmission ratio of the rotation input shaft to the rotation output shaft is 1:1, and the directions are consistent.
3. The invention has the advantages of simple structure, low cost, easy installation, small occupied space and the like.
Drawings
FIG. 1 is a perspective view of an embodiment of a swing arm of the present invention for maintaining a fixed swing angle of a head connector;
FIG. 2 is a schematic left side view of an embodiment of a swing arm of the present invention holding the swing angle of the head connector fixed;
FIG. 3 is a schematic illustration of the loading of the housing and shell in one swing arm embodiment of the present invention maintaining a fixed swing angle of the head connector;
FIG. 4 is a schematic illustration of the installation of an embodiment of a swing arm of the present invention that maintains the swing angle of the head connector fixed;
FIG. 5 is a schematic perspective view of another embodiment of a swing arm for maintaining a fixed swing angle of a head connector according to the present invention;
FIG. 6 is a schematic view of another embodiment of a swing arm of the present invention for maintaining a fixed swing angle of a head connector;
FIG. 7 is a schematic view of another embodiment of a swing arm for maintaining a fixed swing angle of a head connector according to the present invention;
fig. 8 is a schematic view of the loading of the case and housing of another embodiment of the swing arm of the present invention for maintaining the swing angle of the head connector fixed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention discloses a swing arm for keeping the swing angle of a head connecting piece fixed, which can ensure that the head connecting piece connected with the swing arm is always kept at the fixed angle when the swing arm swings, so that the head connecting piece cannot generate unnecessary rotary motion to interfere with other places, one end of the swing arm is hinged on a mounting piece, and the other end of the swing arm is hinged with the head connecting piece, and the swing arm is characterized in that: the swing arm comprises a first connecting piece, a second connecting piece and an intermediate connecting piece, wherein the first connecting piece is connected with the mounting piece, the second connecting piece is connected with the head connecting piece, and the intermediate connecting piece is connected between the first connecting piece and the second connecting piece.
In particular to the embodiment of the present invention, as shown in fig. 1 to 8, a swing arm 10 for maintaining a fixed swing angle of a head link of the present invention includes a first link 100, a second link 200, and an intermediate link 5, wherein the first link 100 is connected to a mounting member 17, the second link 200 is connected to a head link 16, and the intermediate link 5 is connected between the first link 100 and the second link 200.
In order to better achieve that the head link 16 can remain angularly fixed during the rotational oscillation of the swing arm 10 along the mounting 17, the first link 100, the second link 200 and the intermediate link 5 are preferably formed as a four-bar linkage.
In the first embodiment, as shown in fig. 1, the first connecting piece includes a rotation axis m1, a fixing piece b2 and a connecting rod d3, wherein the rotation axis m1 is installed on the installation piece 17, the fixing piece b2 is fixedly connected to the rotation axis m1, and the connecting rod d3 is hinged with the fixing piece b2 through a pin 4; the second connecting piece 200 comprises a rotating shaft m '6, a fixing piece b'7 and a connecting rod d '9, wherein the rotating shaft m'6 is arranged on the head connecting piece 16, the fixing piece b '7 is fixedly connected to the rotating shaft m'6, and the connecting rod d '9 is hinged with the fixing piece b'7 through a pin shaft 8; the intermediate link 5 is connected between the link d3 and the link d' 9.
In this embodiment, the rotation shaft m1 is mounted on the mounting member 17, the rotation shaft m1, the fixing member b2, the connecting rod d3, the pin shaft 4, the intermediate connecting member 5, the rotation shaft m '6, the fixing member b '7, the pin shaft 8 and the connecting rod d '9 form a four-bar mechanism, the intermediate connecting member 5 is driven to rotate and swing mainly by external force to form the up-and-down swinging motion of the swing arm 10, the head connecting member 16 swings along with the swing arm 10, and the angle of the head connecting member 16 in the swinging process can be kept unchanged, so that the head connecting member does not generate unnecessary rotation motion to interfere with other places.
Preferably, as shown in fig. 1 to 2, the connecting rod d3 and the connecting rod d '9 are in an arc-shaped rod structure, the connecting rod d3 can rotate around the rotation axis m1, the connecting rod d '9 can rotate around the rotation axis m '6, so that the upward lifting movement range of the intermediate connecting piece 5 in the swinging process of the swinging arm 10 is smaller, and the movement space required by the swinging arm 10 can be further reduced. In addition, the connecting rod d3 and the connecting rod d'9 are arc-shaped, so that the installation, the production and the manufacturing of the swing arm 10 can be facilitated.
Preferably, in order to enable a greater range of applications of the swing arm 10 according to the present invention, the intermediate connection 5 may be provided as a telescopic rod, enabling the swing arm 10 to be extended and shortened.
Preferably, in order to make the force that the swing arm 10 can withstand larger, and also to make the swing arm 10 more attractive, a case and a housing may be added to the swing arm 10, as shown in fig. 3 to 4, the first coupling member 100 is installed in the case 11, the second coupling member 200 is installed in the case 12, the intermediate coupling member 5 is installed in the housing 13, both ends of the housing 13 are connected to the case 11 and the case 12, and then the rotation shaft m1 is mounted on the mounting member 17, and the rotation shaft m'6 is mounted on the head coupling member 16.
Fig. 4 is an installation diagram of the swing arm 10 in daily use, which has the advantages of simple structure, small size, beautiful appearance, high bearing capacity, etc., and the head connecting piece 16 can always keep the angle fixed during the rotation of the swing arm 10.
In the second embodiment, as shown in fig. 5 to 6, the first link 100 includes a rotation axis a21 and a rotation axis a '22, the second link includes a rotation axis c25 and a rotation axis c '26, and the intermediate link includes a connection rod e23 and a connection rod e '24.
In the present embodiment, the rotation shaft a21 is mounted on the mounting member 28, one end of the connecting rod e23 is connected to the rotation shaft a21, the other end is connected to the rotation shaft c25, and the rotation shaft c25 is mounted on the head connecting member 27; the rotation shaft a '22 is mounted on the mounting member 28, and the connecting rod e '24 has one end connected to the rotation shaft a '22 and the other end connected to the rotation shaft c '26, and the rotation shaft c '26 is mounted on the head connecting member 27.
In this embodiment, the mounting member 28, the rotation shaft a21 and the rotation shaft a '22, the connection rod e23 and the connection rod e'24, the rotation shaft c25 and the rotation shaft c '26, and the head connection member 27 form a parallelogram structure, and mainly depend on external force to drive the connection rod e23 and the connection rod e'24 to rotate and swing to form the up-and-down swinging motion of the swing arm 10, and the head connection member 27 swings along with the swing arm 10, and always keeps the angle fixed in the swinging process, so that the head connection member does not generate unnecessary rotation motion to interfere with other places.
The four-bar mechanism formed by the swing arm 10, the mounting member 28 and the head connecting member 27 in the present embodiment is simpler in structure and more stressed.
Preferably, the connecting rod e23 and the connecting rod e'24 are telescopic connecting rods, which can make the application range of the swing arm 10 wider.
In a third embodiment, a first connector 100 of a swing arm 10 for keeping a swing angle of a head connector fixed according to the present invention includes a rotation shaft k31, a bevel gear x32 and a bevel gear y33, wherein the rotation shaft k31 is mounted on a mounting member, the bevel gear x32 is sleeved on the rotation shaft k31, and the bevel gear x32 is meshed with the bevel gear y 33; the second coupling member 200 includes a rotation shaft k '35, a bevel gear x'36 and a bevel gear y '37, the rotation shaft k'35 being mounted on the head coupling member, the bevel gear x '36 being fitted over the rotation shaft k'35, the bevel gear x '36 being engaged with the bevel gear y' 37; intermediate coupling 34 is connected between bevel gear y33 and bevel gear y' 37.
In this embodiment, the intermediate connecting member 34 is driven to swing by external force to form the up-and-down swinging motion of the swing arm 10, and the head connecting member 27 swings along with the swing arm 10, and the angle is always fixed in the swinging process, so that the head connecting member does not generate unnecessary rotation motion to interfere with other places.
Preferably, the intermediate connection 34 is a telescopic connection, thereby ensuring a greater range of use of the swing arm 10.
Preferably, as shown in fig. 8, in order to make the force that the swing arm 10 can bear larger, and also to make the swing arm 10 more beautiful, a box and a housing may be added to the swing arm 10, the first connector 100 is installed in the box 38, the second connector 200 is installed in the box 40, the intermediate connector 5 is installed in the housing 39, and both ends of the housing 39 are connected to the box 11 and the box 12.
Preferably, the swing arm 10 for keeping the swing angle of the head connecting piece fixed according to the present invention can be used on a standing rehabilitation wheelchair mentioned in the patent ZL201610715530.3, one end of the swing arm 10 is mounted on the chassis of the swing arm, and the other end of the swing arm is connected with the chest protector, and the swing arm 10 according to the present invention can ensure that the chest protector always keeps against the abdomen of the user and increases the comfort of the user when the user uses the standing rehabilitation wheelchair mentioned in the patent ZL201610715530.3 to switch between standing and sitting postures.
In summary, the swing arm 10 for keeping the swing angle of the head connecting piece fixed according to the present invention can ensure that the head connecting piece connected with the swing arm is always kept at a fixed angle during the swing, so that the head connecting piece does not generate unnecessary rotation movement to interfere with other places, and the transmission ratio of the rotation input shaft to the rotation output shaft is 1:1, and the directions are consistent. Meanwhile, the device has the advantages of being exquisite, small and exquisite, simple in structure, low in cost, easy to install, small in occupied space and the like.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (7)
1. The utility model provides a keep fixed swing arm of head connecting piece swing angle, swing arm one end articulates on the installed part, the other end with head connecting piece articulates, its characterized in that: the swing arm comprises a first connecting piece, a second connecting piece and an intermediate connecting piece, the first connecting piece is connected with the mounting piece, the second connecting piece is connected with the head connecting piece, and the intermediate connecting piece is connected between the first connecting piece and the second connecting piece;
the first connecting piece, the second connecting piece and the middle connecting piece form a four-bar mechanism.
2. The swing arm according to claim 1, wherein the first link includes a rotation shaft m mounted on the mounting member, a fixing member b fixedly connected to the rotation shaft m, and a link d hinged to the fixing member b; the second connecting piece comprises a rotating shaft m ', a fixing piece b' and a connecting rod d ', wherein the rotating shaft m' is arranged on the head connecting piece, the fixing piece b 'is fixedly connected to the rotating shaft m', and the connecting rod d 'is hinged with the fixing piece b'; the intermediate connection member is connected between the connecting rod d and the connecting rod d'.
3. A swing arm for maintaining a constant swing angle of a head connector according to claim 2, wherein said links d and d' are in the form of an arcuate lever structure.
4. A swing arm for maintaining a fixed swing angle of a head coupling according to claim 1, wherein said first coupling comprises a rotation axis a and a rotation axis a ', said second coupling comprises a rotation axis c and a rotation axis c ', and said intermediate coupling comprises a connection rod e and a connection rod e '; the rotating shaft a is arranged on the mounting piece, one end of the connecting rod e is connected with the rotating shaft a, the other end of the connecting rod e is connected with the rotating shaft c, and the rotating shaft c is arranged on the head connecting piece; the rotating shaft a 'is arranged on the mounting piece, one end of the connecting rod e' is connected with the rotating shaft a ', the other end of the connecting rod e' is connected with the rotating shaft c ', and the rotating shaft c' is arranged on the head connecting piece; the mounting part, the rotating shafts a and a ', the connecting rods e and e ', the rotating shafts c and c ' and the head connecting part form a parallelogram structure.
5. A swing arm for maintaining a fixed swing angle of a head coupling member according to claim 1, wherein said first coupling member comprises a rotation shaft k, a bevel gear x and a bevel gear y, said rotation shaft k being mounted to said mounting member, said bevel gear x being fitted over said rotation shaft k, said bevel gear x being engaged with said bevel gear y; the second connecting piece comprises a rotating shaft k ', a bevel gear x' and a bevel gear y ', wherein the rotating shaft k' is arranged on the head connecting piece, the bevel gear x 'is sleeved on the rotating shaft k', and the bevel gear x 'and the bevel gear y'
Engagement; the intermediate coupling is coupled between the bevel gears y and y'.
6. A swing arm for maintaining a constant swing angle of a head connector according to any one of claims 1 to 5, wherein said intermediate connector is a telescopic intermediate connector.
7. The swing arm according to claim 6, further comprising a housing, said housing comprising a number of cases, said number of cases being 2, said first and second connectors being respectively installed into said cases, said intermediate connector being connected between said first and second connectors, and an outer sleeve being connected between said 2 cases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346464.2A CN110101517B (en) | 2018-11-13 | 2018-11-13 | Swing arm for keeping fixed swing angle of head connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346464.2A CN110101517B (en) | 2018-11-13 | 2018-11-13 | Swing arm for keeping fixed swing angle of head connecting piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110101517A CN110101517A (en) | 2019-08-09 |
| CN110101517B true CN110101517B (en) | 2024-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811346464.2A Active CN110101517B (en) | 2018-11-13 | 2018-11-13 | Swing arm for keeping fixed swing angle of head connecting piece |
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| Country | Link |
|---|---|
| CN (1) | CN110101517B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1406420A (en) * | 1971-11-03 | 1975-09-17 | Lywood B W | Seat lifting mechanism |
| CN105105934A (en) * | 2015-09-29 | 2015-12-02 | 天津科技大学 | Multifunctional separating power-assisted wheelchair |
| CN106236419A (en) * | 2016-08-24 | 2016-12-21 | 上海邦邦机器人有限公司 | A kind of hand assisted power Wheelchair for patient standing car |
| CN106236423A (en) * | 2016-08-24 | 2016-12-21 | 上海邦邦机器人有限公司 | A kind of hands plays formula Wheelchair for patient standing car |
| CN106236422A (en) * | 2016-08-24 | 2016-12-21 | 上海邦邦机器人有限公司 | One is stood rehabilitation wheelchair car |
| CN209316285U (en) * | 2018-11-13 | 2019-08-30 | 上海邦邦机器人有限公司 | A kind of swing arm for keeping head connector swing angle fixed |
-
2018
- 2018-11-13 CN CN201811346464.2A patent/CN110101517B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1406420A (en) * | 1971-11-03 | 1975-09-17 | Lywood B W | Seat lifting mechanism |
| CN105105934A (en) * | 2015-09-29 | 2015-12-02 | 天津科技大学 | Multifunctional separating power-assisted wheelchair |
| CN106236419A (en) * | 2016-08-24 | 2016-12-21 | 上海邦邦机器人有限公司 | A kind of hand assisted power Wheelchair for patient standing car |
| CN106236423A (en) * | 2016-08-24 | 2016-12-21 | 上海邦邦机器人有限公司 | A kind of hands plays formula Wheelchair for patient standing car |
| CN106236422A (en) * | 2016-08-24 | 2016-12-21 | 上海邦邦机器人有限公司 | One is stood rehabilitation wheelchair car |
| CN209316285U (en) * | 2018-11-13 | 2019-08-30 | 上海邦邦机器人有限公司 | A kind of swing arm for keeping head connector swing angle fixed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110101517A (en) | 2019-08-09 |
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