CN215535778U - Wheelchair armrest mechanism and electric wheelchair - Google Patents
Wheelchair armrest mechanism and electric wheelchair Download PDFInfo
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- CN215535778U CN215535778U CN202120582611.7U CN202120582611U CN215535778U CN 215535778 U CN215535778 U CN 215535778U CN 202120582611 U CN202120582611 U CN 202120582611U CN 215535778 U CN215535778 U CN 215535778U
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Abstract
The utility model relates to a wheelchair armrest mechanism, which is provided with a seat support and an armrest support; the armrest support comprises a first connecting rod, a second connecting rod and a connecting rod, an adjusting component is arranged between the second connecting rod and the seat support, the adjusting component comprises a fixing block, a bolt, a control block and a supporting block, a through hole is formed in the fixing block, a locking block is fixedly arranged on the seat support, a jack is formed in the locking block, one end of the bolt is rotatably connected to the control block, and the other end of the bolt penetrates through the through hole and stretches into the jack to fix the armrest support on the seat support. The utility model also relates to an electric wheelchair which comprises a cushion, a backrest, an armrest cushion, two armrest supports, a seat support, a front wheel, a rear wheel and a driving device for driving the front wheel or the rear wheel to move forward, wherein the cushion and the backrest are fixed on the seat support, the armrest cushion is fixed on the armrest support, and a second connecting rod is far away from the backrest, inserted into the insertion hole through a bolt and then fixed on the seat support. The utility model has the advantages of ingenious structure, convenience and high efficiency.
Description
Technical Field
The utility model relates to a wheelchair armrest mechanism and an electric wheelchair.
Background
The electric wheelchair is formed by superposing a high-performance energy power driving device, an intelligent operating device, a battery and the like on the basis of the traditional manual wheelchair and is formed by modification and upgrading. The novel intelligent wheelchair with the functions of advancing, retreating, steering, standing, lying, and the like can be driven by manually operating the intelligent controller, and is a high-tech product combining the fields of modern precision machinery, intelligent numerical control, engineering mechanics and the like. The handrail of the existing electric wheelchair is generally fixed on a seat support, and when a patient moves sideways or is rehabilitated by a side branch, the handrail support on the side can influence the training or rehabilitation of the patient, so that the wheelchair is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The first purpose of the utility model is to provide a wheelchair armrest mechanism which is ingenious in structure and capable of quickly lifting or lowering an armrest according to actual needs.
The technical scheme for realizing the purpose of the utility model is as follows: the utility model is provided with a seat support and an armrest support which is rotationally connected with the seat support; the armrest support comprises a first connecting rod, a second connecting rod and a connecting rod, wherein the first connecting rod and the second connecting rod are rotatably connected to the seat support, the first connecting rod and the second connecting rod are both vertically arranged, an adjusting component for changing the connection state of the second connecting rod and the seat support is arranged between the second connecting rod and the seat support, the adjusting component comprises a fixed block fixed at the lower end of the second connecting rod, a bolt arranged on the fixed block in a sliding way, a control block connected on the bolt in a rotating way, and a supporting block fixed on the fixed block and used as a rotating fulcrum of the control block, the seat support is characterized in that a through hole through which the bolt can penetrate is formed in the fixing block, a locking block is fixedly arranged on the seat support, a jack through which the bolt can be inserted is formed in the locking block, one end of the bolt is rotatably connected to the control block, and the other end of the bolt penetrates through the through hole and stretches into the jack to fix the armrest support on the seat support.
The axis of the through hole is parallel to the connecting rod, the rotation axis of the control block is perpendicular to the axis of the through hole, the supporting block is provided with an arc-shaped supporting surface, and the control block is provided with an arc-shaped pressing surface corresponding to the arc-shaped supporting surface.
Be equipped with reset spring in the above-mentioned through-hole, reset spring overlaps and establishes on the bolt, and reset spring's one end is fixed in the through-hole, and reset spring's the other end is fixed on the bolt, and the bolt compresses tightly in the jack through reset spring's the continuous application of force.
The lower extreme of above-mentioned fixed block is equipped with and is conical toper inserted block with fixed block integrated into one piece and cross-section, be equipped with on the latch segment and supply toper inserted block male toper slot, the jack is located the lateral wall of toper slot, and communicates with the toper slot, and the fixed block passes through the toper inserted block and inserts the toper slot and insert behind the jack with latch segment fixed connection.
The second purpose of the utility model is to provide the electric wheelchair which has a skillful structure, is convenient and practical.
The technical scheme for realizing the purpose of the utility model is as follows: the seat cushion and the backrest are fixed on the seat support, the armrest cushion is fixed on the armrest support, the first connecting rod is rotatably connected to one end, close to the backrest, of the seat support, and the second connecting rod is far away from the backrest and is fixed on the seat support after being inserted into the insertion hole through the bolt.
The driving device comprises a driving motor which is fixed on the seat support and used for driving the front wheel or the rear wheel to rotate, a storage battery which is fixed on the seat support, and a controller which is used for controlling the driving motor to be switched on and off, wherein the controller is fixed on the handrail support and is electrically connected with the driving motor, the driving motor is electrically connected with the storage battery, and the controller drives the front wheel or the rear wheel to move forward through the control of the driving motor.
The utility model has the positive effects that: (1) according to the utility model, the adjusting component is arranged between the second connecting rod and the seat support, the bolt is driven by the control block to horizontally slide, the connection state of the bolt and the jack is controlled by the horizontal sliding of the bolt, when the bolt leaves the jack, the armrest support can rotate, and when the bolt is inserted into the jack, the armrest support is fixed on the seat support, so that the problem that the armrest support influences the rehabilitation training of a patient in the prior art can be effectively solved, and the chair has good adjustability and controllability, and is efficient and practical.
(2) According to the utility model, the arc-shaped supporting surface is arranged on the supporting block, the arc-shaped pressing surface is arranged on the control block, and the arc-shaped supporting surface and the arc-shaped pressing surface are matched to be used as a fulcrum when the control block rotates, so that on one hand, the smoothness of the control block during rotation can be ensured, on the other hand, the situation that the control block is blocked or deadly in the rotating process can be avoided, and the device is efficient and practical.
(3) According to the utility model, the reset spring is arranged in the through hole, and the reset spring is sleeved on the plug pin, so that on one hand, the plug pin can be inserted into the plug hole by continuously applying pressure, and on the other hand, when the handrail support is lifted up and put down again, the plug pin can be accurately and efficiently inserted into the plug hole, the integral stability is ensured, and the handrail support is convenient and efficient.
(4) According to the utility model, the conical insertion block is arranged at the lower end of the fixed block, the conical slot is arranged on the locking block, and the stability and firmness of the connection between the armrest support and the seat support can be effectively ensured through the matching of the conical insertion block and the conical slot, and the axial line deviation in the connection process can be avoided.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a left side view of the overall structure of the electric wheelchair armrest support of the present invention when raised;
FIG. 2 is a front view of the overall structure of the electric wheelchair armrest support of the present invention when raised;
FIG. 3 is an enlarged view taken at A in FIG. 1;
FIG. 4 is a schematic view of the overall structure of the armrest support of the present invention;
FIG. 5 is a schematic diagram of the overall structure of the control block of the present invention;
FIG. 6 is a schematic view of the overall structure of the fixing block according to the present invention;
fig. 7 is a schematic view of the overall structure of the locking block of the present invention.
Detailed Description
Referring to fig. 1 to 7, the present invention relates to a wheelchair armrest mechanism having a seat support 5 and an armrest support 4 rotatably coupled to the seat support 5; the armrest support 4 comprises a first connecting rod 41, a second connecting rod 42 and a connecting rod 43, wherein the first connecting rod 41 and the second connecting rod 42 are rotatably connected to the seat support 5, the connecting rod 43 is used for connecting the first connecting rod 41 and the second connecting rod 42, the first connecting rod 41 and the second connecting rod 42 are both vertically arranged, an adjusting component 9 for changing the connection state of the second connecting rod 42 and the seat support 5 is arranged between the second connecting rod 42 and the seat support 5, the adjusting component 9 comprises a fixing block 91 fixed at the lower end of the second connecting rod 42, a bolt 93 slidably arranged on the fixing block 91, a control block 95 rotatably connected to the bolt 93, and a supporting block 96 fixed on the fixing block 91 and used as a rotation fulcrum of the control block 95, the fixing block 91 is provided with a through hole 90 for the bolt 93 to pass through, the seat support 5 is fixedly provided with a locking block 53, and the locking block 53 is provided with a jack 531 for the bolt 93 to insert into, one end of the bolt 93 is rotatably connected to the control block 95, and the other end of the bolt 93 passes through the through hole 90 and extends into the insertion hole 531 to fix the armrest support 4 to the seat support 5.
The axis of the through hole 90 is parallel to the connecting rod 43, the rotation axis of the control block 95 is perpendicular to the axis of the through hole 90, the support block 96 is provided with an arc-shaped support surface 961, and the control block 95 is provided with an arc-shaped pressing surface 951 corresponding to the arc-shaped support surface 961.
A return spring 94 is arranged in the through hole 90, the return spring 94 is sleeved on the plug pin 93, one end of the return spring 94 is fixed in the through hole 90, the other end of the return spring 94 is fixed on the plug pin 93, and the plug pin 93 is pressed in the jack 531 through the continuous force application of the return spring 94.
The lower extreme of fixed block 91 is equipped with and is conical toper inserted block 92 with fixed block 91 integrated into one piece and cross-section, be equipped with on the latch segment 53 and supply toper inserted block 92 male toper slot 532, jack 531 is located the lateral wall of toper slot 532, and communicates with toper slot 532, and fixed block 91 inserts toper slot 532 through toper inserted block 92 and inserts behind jack 531 with latch segment 53 fixed connection.
The utility model also relates to an electric wheelchair, which comprises a cushion 1, a backrest 2, an armrest cushion 3, two armrest supports 4 in the armrest mechanism of the wheelchair, a seat support 5 in the armrest mechanism of the wheelchair, a front wheel 6 and a rear wheel 7 which are fixed on the seat support 5, and a driving device for driving the rear wheel 7 to move, wherein the cushion 1 and the backrest 2 are both fixed on the seat support 5, the armrest cushion 3 is fixed on the armrest supports 4, a first connecting rod 41 is rotationally connected to one end, close to the backrest 2, of the seat support 5, and a second connecting rod 42 is far away from the backrest 2, inserted into an insertion hole 531 through a bolt 93 and then fixed on the seat support 5.
The driving device comprises a driving motor 52 which is fixed on the seat support 5 and used for driving the front wheel 6 or the rear wheel 7 to rotate, a storage battery which is fixed on the seat support 5, and a controller 51 which is used for controlling the driving motor 52 to be switched on and off, wherein the controller 51 is fixed on the armrest support 4, the controller 51 is electrically connected with the driving motor 52, the driving motor 52 is electrically connected with the storage battery, and the controller 51 drives the rear wheel 7 to move forward through the control of the driving motor 52.
The working principle of the utility model is as follows: when the electric wheelchair is used, a patient can control the driving motor 52 through the controller 51, further control the rear wheel 7 to rotate, drive the electric wheelchair to move, press the control block 95 when the patient needs to lift the armrest, the control block 95 drives the bolt 93 to leave the jack 531, and the armrest support 4 can be lifted upwards after the bolt 93 is separated from the jack 531, so that the patient can conveniently carry out side activities or rehabilitation training.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A wheelchair armrest mechanism is provided with a seat support (5) and an armrest support (4) which is rotatably connected to the seat support (5); the method is characterized in that: the armrest support (4) comprises a first connecting rod (41) and a second connecting rod (42) which are rotatably connected to a seat support (5), and a connecting rod (43) used for connecting the first connecting rod (41) and the second connecting rod (42), wherein the first connecting rod (41) and the second connecting rod (42) are both vertically arranged, an adjusting component (9) used for changing the connection state of the second connecting rod (42) and the seat support (5) is arranged between the second connecting rod (42) and the seat support (5), the adjusting component (9) comprises a fixed block (91) fixed at the lower end of the second connecting rod (42), a bolt (93) slidably arranged on the fixed block (91), a control block (95) rotatably connected to the bolt (93), and a supporting block (96) fixed on the fixed block (91) and capable of being used as a rotating fulcrum of the control block (95), and a through hole (90) for the bolt (93) to pass through is arranged on the fixed block (91), the seat is characterized in that a locking block (53) is fixedly arranged on the seat support (5), a jack (531) for inserting a bolt (93) is formed in the locking block (53), one end of the bolt (93) is rotatably connected to the control block (95), and the other end of the bolt (93) penetrates through a through hole (90) and extends into the jack (531) to fix the armrest support (4) on the seat support (5).
2. The wheelchair armrest mechanism of claim 1, wherein: the axis of through-hole (90) and connecting rod (43) parallel arrangement, the axis of rotation of control block (95) sets up with the axis of through-hole (90) is perpendicular, be equipped with arc holding surface (961) on supporting shoe (96), be equipped with on control block (95) with arc holding surface (951) that arc holding surface (961) corresponds.
3. The wheelchair armrest mechanism of claim 1, wherein: be equipped with reset spring (94) in through-hole (90), reset spring (94) cover is established on bolt (93), and the one end of reset spring (94) is fixed in through-hole (90), and the other end of reset spring (94) is fixed on bolt (93), and bolt (93) compress tightly in jack (531) through the lasting application of force of reset spring (94).
4. The wheelchair armrest mechanism of claim 1, wherein: the lower extreme of fixed block (91) is equipped with and is conical toper inserted block (92) with fixed block (91) integrated into one piece and cross-section, be equipped with on latch segment (53) and supply toper inserted block (92) male toper slot (532), jack (531) are located the lateral wall of toper slot (532), and communicate with toper slot (532), and fixed block (91) insert toper slot (532) through toper inserted block (92) and insert behind jack (531) with latch segment (53) fixed connection bolt (93).
5. An electric wheelchair, characterized in that: the wheelchair armrest mechanism comprises a seat cushion (1), a backrest (2), an armrest pad (3), two armrest supports (4) in the wheelchair armrest mechanism as claimed in claim 1 or 2 or 3 or 4, a seat support (5) in the wheelchair armrest mechanism as claimed in claim 1 or 2 or 3 or 4, a front wheel (6) and a rear wheel (7) which are fixed on the seat support (5), and a driving device for driving the front wheel (6) or the rear wheel (7) to advance, wherein the seat cushion (1) and the backrest (2) are fixed on the seat support (5), the armrest pad (3) is fixed on the armrest supports (4), a first connecting rod (41) is rotatably connected to one end, close to the backrest (2), of the seat support (5), and a second connecting rod (42) is far away from the backrest (2), inserted into an insertion hole (531) through a bolt (93) and then fixed on the seat support (5).
6. The electrically powered wheelchair of claim 5, wherein: the driving device comprises a driving motor (52) which is fixed on a seat support (5) and used for driving a front wheel (6) or a rear wheel (7) to rotate, a storage battery which is fixed on the seat support (5), and a controller (51) which is used for controlling the driving motor (52) to be switched on and off, wherein the controller (51) is fixed on the armrest support (4), the controller (51) is electrically connected with the driving motor (52), the driving motor (52) is electrically connected with the storage battery, and the controller (51) drives the front wheel (6) or the rear wheel (7) to move forward through the control of the driving motor (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582611.7U CN215535778U (en) | 2021-03-17 | 2021-03-17 | Wheelchair armrest mechanism and electric wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582611.7U CN215535778U (en) | 2021-03-17 | 2021-03-17 | Wheelchair armrest mechanism and electric wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215535778U true CN215535778U (en) | 2022-01-18 |
Family
ID=79854508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120582611.7U Active CN215535778U (en) | 2021-03-17 | 2021-03-17 | Wheelchair armrest mechanism and electric wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215535778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116687678A (en) * | 2023-06-26 | 2023-09-05 | 广东大洋医疗科技股份有限公司 | Portable wheelchair |
-
2021
- 2021-03-17 CN CN202120582611.7U patent/CN215535778U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116687678A (en) * | 2023-06-26 | 2023-09-05 | 广东大洋医疗科技股份有限公司 | Portable wheelchair |
| CN116687678B (en) * | 2023-06-26 | 2024-03-08 | 广东大洋医疗科技股份有限公司 | Portable wheelchair |
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