CN211985795U - Telescopic artificial limb forearm - Google Patents
Telescopic artificial limb forearm Download PDFInfo
- Publication number
- CN211985795U CN211985795U CN202020390104.9U CN202020390104U CN211985795U CN 211985795 U CN211985795 U CN 211985795U CN 202020390104 U CN202020390104 U CN 202020390104U CN 211985795 U CN211985795 U CN 211985795U
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- arm cylinder
- distance adjusting
- artificial limb
- prosthetic
- fixed arm
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Abstract
The utility model discloses a telescopic artificial limb forearm, which comprises a fixed arm cylinder; the proximal end of the fixed arm cylinder is sleeved in the artificial limb receiving cavity, and the fixed arm cylinder and the artificial limb receiving cavity slide relatively; the far end of the fixed arm cylinder is sleeved in the rotating arm cylinder, and the rotating arm cylinder rotates relative to the fixed arm cylinder; the near end of the fixed arm cylinder is fixedly connected with a distance adjusting rack A; the inner part of the prosthetic socket is fixedly connected with a distance-adjusting rack B; and a distance adjusting gear is clamped between the distance adjusting rack A and the distance adjusting rack B, and the distance adjusting rack A and the distance adjusting rack B are meshed with the distance adjusting gear. The utility model has simple structure, light weight and convenient use; more functionality than decorative hands; the length can be adjusted, the telescopic function is realized, and different scene requirements can be met; the utility model discloses possess the rotatory function of two-period form, all can rotate in wrist and forearm department, when changing the instrument hand, rotatory wrist or arm are convenient for the use of instruments such as screwdriver, spanner.
Description
Technical Field
The utility model relates to an artificial limb forearm, in particular to a telescopic artificial limb forearm.
Background
The length of our arms is fixed and constant due to the human structure. This results in some cases where the length of our arms limits our activities. Especially for disabled people lacking small arms, they are not able to perform even the basic movements. Therefore, to meet the basic needs of disabled people for life, a prosthesis is often installed at the stump.
Prior art prostheses are largely divided into ornamental hands, tool hands, functional prosthetic hands and myoelectric prosthetic hands. The decorative hand only has a cosmetic effect and has little function. The tool hand is mainly used for labor, but is not beautiful. The functional artificial hand has both beauty and functionality, but is often of large mass and has a feeling of heaviness and burden when worn for a long time. The myoelectric artificial hand has limited application range and high price.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the technology, the utility model provides a telescopic artificial limb forearm.
In order to solve the technical problem, the utility model discloses a technical scheme is: a kind of telescopic artificial limb forearm, the artificial limb forearm includes the fixed arm tube; the proximal end of the fixed arm cylinder is sleeved in the artificial limb receiving cavity, and the fixed arm cylinder and the artificial limb receiving cavity slide relatively; the far end of the fixed arm cylinder is sleeved in the rotating arm cylinder, and the rotating arm cylinder rotates relative to the fixed arm cylinder;
the near end of the fixed arm cylinder is fixedly connected with a distance adjusting rack A; the inner part of the prosthetic socket is fixedly connected with a distance-adjusting rack B; a distance adjusting gear is clamped between the distance adjusting rack A and the distance adjusting rack B, and the distance adjusting rack A and the distance adjusting rack B are meshed with the distance adjusting gear;
the shaft part of the distance adjusting gear is fixedly connected with a connecting shaft, the end of the connecting shaft is fixedly connected with a knob, and the knob is positioned outside the prosthetic socket;
the proximal end of the artificial limb receiving cavity is provided with an opening, and the opening is matched with the shape of the distal end of the upper arm of the human body.
Furthermore, the far end of the artificial limb forearm is connected with an artificial hand, and the artificial hand is connected with the artificial limb forearm in a rotating way.
Further, a motor for driving the prosthetic hand is arranged at the far end of the inner part of the rotating arm cylinder; the output shaft of the motor for driving the prosthetic hand extends out of the rotary arm cylinder and is fixedly connected with the prosthetic hand.
Furthermore, a driving rotating arm motor is arranged in the fixed arm cylinder; a rotary arm cylinder bracket is arranged in the rotary arm cylinder; an output shaft of the motor for driving the rotating arm extends out of the fixed arm cylinder and is fixedly connected with the rotating arm cylinder bracket.
Furthermore, a fixed seat is arranged in the artificial limb receiving cavity; the distance adjusting rack B is arranged on the fixed seat.
Further, a strap is mounted on the proximal end of the prosthetic socket.
The utility model discloses the beneficial effect who has does: the utility model has simple structure, light weight and more convenient use; compared with the existing decorative hands on the market, the decorative hands have more functionality; the utility model can adjust the length, has the function of extension and can meet different scene requirements; the utility model discloses possess the rotatory function of two-period form, all can rotate in wrist and forearm department, when changing the instrument hand, rotatory wrist or arm are convenient for the use of instruments such as screwdriver, spanner.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a fixed arm cylinder; 2. a prosthetic socket; 3. a rotary arm cylinder; 4. a distance adjusting rack A; 5. a distance adjusting rack B; 6. a pitch adjusting gear; 7. a prosthetic hand; 8. a motor for driving the prosthetic hand; 9. a motor for driving the rotating arm; 10. a rotating arm cylinder support; 11. a fixed seat.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows a telescopic prosthetic forearm, comprising a fixed arm socket 1; the proximal end of the fixed arm cylinder is sleeved in the prosthetic socket 2, and the proximal end of the fixed arm cylinder can slide back and forth in the prosthetic socket along the length of the forearm.
The near end of the fixed arm cylinder is fixedly connected with a distance adjusting rack A4; the interior of the prosthetic socket is fixedly connected with a distance-adjusting rack B5; a distance adjusting gear 6 is clamped between the distance adjusting rack A and the distance adjusting rack B, and the distance adjusting rack A and the distance adjusting rack B are meshed with the distance adjusting gear. Wherein, a fixed seat 11 is arranged in the artificial limb receiving cavity; the adjustable-pitch rack B is arranged on the fixed seat, the front side of the fixed seat can be used for fixing the adjustable-pitch rack B, and the back side of the fixed seat can be used as the bottom of the artificial limb receiving cavity and can support the residual limb of the human body, so that the artificial limb forearm can be conveniently installed and fixed.
The shaft part of the pitch-adjusting gear is fixedly connected with a connecting shaft, the end of the connecting shaft is fixedly connected with a knob, and the knob is positioned outside the prosthetic socket.
When the artificial limb forearm is installed on a human body, the length of the artificial limb forearm can be adjusted by manually rotating the knob. The knob drives the pitch adjusting gear to rotate through the connecting shaft, and the pitch adjusting gear is meshed with the pitch adjusting rack A and the pitch adjusting rack B, so that the fixed arm barrel is driven to be far away from or close to the prosthetic socket when the pitch adjusting gear rotates clockwise or anticlockwise.
The far end of the fixed arm cylinder is sleeved in the rotating arm cylinder 3, and a driving rotating arm motor 9 is arranged in the fixed arm cylinder; a rotary arm cylinder bracket 10 is arranged in the rotary arm cylinder; an output shaft of the motor for driving the rotating arm extends out of the fixed arm cylinder and is fixedly connected with the rotating arm cylinder bracket. When the rotating arm motor is driven to start, the output shaft of the rotating arm motor can drive the rotating arm cylinder to rotate relative to the fixed arm cylinder. The rotating arm cylinder support is used for fixedly connecting the driving rotating arm motor and the rotating arm cylinder. The shape of the rotary arm cylinder bracket is in a square shape to enhance the stability of connection.
The proximal end of the artificial limb receiving cavity is provided with an opening, and the opening is matched with the shape of the distal end of the upper arm of the human body, so that the artificial limb forearm can be conveniently arranged on the upper arm stump. The near end of the artificial limb receiving cavity is provided with a binding belt which fixes the artificial limb receiving cavity on the residual limb of the human body, so that the artificial limb is prevented from falling off accidentally due to the fact that the artificial limb is not fixed firmly.
The far end of the artificial limb forearm is connected with an artificial hand 7, and the far end in the rotary arm cylinder is provided with a motor 8 for driving the artificial hand; the output shaft of the motor for driving the artificial limb hand extends out of the rotary arm cylinder to be fixedly connected with the artificial limb hand, so that the artificial limb hand is rotatably connected with the artificial limb forearm.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (6)
1. A telescopic artificial limb forearm, characterized by: the artificial limb small arm comprises a fixed arm cylinder (1); the proximal end of the fixed arm cylinder is sleeved in the prosthetic socket (2), and the fixed arm cylinder and the prosthetic socket slide relatively; the far end of the fixed arm cylinder is sleeved in the rotating arm cylinder (3), and the rotating arm cylinder rotates relative to the fixed arm cylinder;
the near end of the fixed arm cylinder is fixedly connected with a distance adjusting rack A (4); the interior of the artificial limb receiving cavity is fixedly connected with a distance adjusting rack B (5); a distance adjusting gear (6) is clamped between the distance adjusting rack A and the distance adjusting rack B, and the distance adjusting rack A and the distance adjusting rack B are meshed with the distance adjusting gear;
the shaft part of the distance adjusting gear is fixedly connected with a connecting shaft, the end of the connecting shaft is fixedly connected with a knob, and the knob is positioned outside the prosthetic socket;
the proximal end of the artificial limb receiving cavity is provided with an opening, and the opening is matched with the shape of the distal end of the upper arm of the human body.
2. The telescopic prosthetic forearm according to claim 1, wherein: the far end of the artificial limb forearm is connected with an artificial hand (7), and the artificial hand is rotatably connected with the artificial limb forearm.
3. The telescopic prosthetic forearm according to claim 2, wherein: a motor (8) for driving the prosthetic hand is arranged at the far end in the rotating arm cylinder; the output shaft of the motor for driving the prosthetic hand extends out of the rotary arm cylinder and is fixedly connected with the prosthetic hand.
4. The telescopic prosthetic forearm according to claim 1, wherein: a driving rotating arm motor (9) is arranged in the fixed arm cylinder; a rotary arm cylinder bracket (10) is arranged in the rotary arm cylinder; an output shaft of the driving rotating arm motor extends out of the fixed arm cylinder and is fixedly connected with the rotating arm cylinder support.
5. The telescopic prosthetic forearm according to claim 1, wherein: a fixed seat (11) is arranged in the artificial limb receiving cavity; the distance adjusting rack B is installed on the fixed seat.
6. The telescopic prosthetic forearm according to claim 1, wherein: the proximal end of the prosthetic socket is provided with a binding band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390104.9U CN211985795U (en) | 2020-03-25 | 2020-03-25 | Telescopic artificial limb forearm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390104.9U CN211985795U (en) | 2020-03-25 | 2020-03-25 | Telescopic artificial limb forearm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211985795U true CN211985795U (en) | 2020-11-24 |
Family
ID=73430003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020390104.9U Active CN211985795U (en) | 2020-03-25 | 2020-03-25 | Telescopic artificial limb forearm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211985795U (en) |
-
2020
- 2020-03-25 CN CN202020390104.9U patent/CN211985795U/en active Active
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