CN214967179U - Intelligent artificial limb with active bending and locking functions - Google Patents
Intelligent artificial limb with active bending and locking functions Download PDFInfo
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- CN214967179U CN214967179U CN202121055993.4U CN202121055993U CN214967179U CN 214967179 U CN214967179 U CN 214967179U CN 202121055993 U CN202121055993 U CN 202121055993U CN 214967179 U CN214967179 U CN 214967179U
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Abstract
An intelligent prosthesis with active bend locking including a thigh member, a calf member and an ankle foot member, the calf member comprising: the ankle joint comprises a rack and a joint head hinged to the top of the rack, wherein the bottom of the rack is connected with an ankle foot piece; a hydraulic cylinder is hinged in the frame, and a hydraulic rod of the hydraulic cylinder is connected with a joint head; an active servo motor connected with the hinged end of the hydraulic rod is arranged on the joint head; the hydraulic cylinder active servo motors are all connected with the controller; the two sides of the frame are respectively movably connected with a connecting rod, the upper part of the hydraulic cylinder is respectively connected with the two connecting rods, the two sides of the lower part of the joint head are provided with lock discs, and the inner sides of the connecting rods are provided with lock heads which can be contacted with the lock discs. The utility model discloses realize the crooked damped intelligent regulation of artificial limb, can realize the joint locking when standing, strengthen the articular stability of artificial limb greatly, have the function of going upstairs and downstairs, and the mode switch is natural smooth and easy going upstairs and downstairs.
Description
Technical Field
The utility model relates to an intelligence artificial limb technical field, concretely relates to intelligence artificial limb with initiative crooked locking function.
Background
Due to various reasons such as war, disease, industrial injury, traffic accident and natural disaster, millions of people lose healthy lower limbs, some people lose labor capacity, and the normal social interaction of the people is prevented, so that the people bear huge physical and mental pressure; on the other hand, the physical disabilities often affect the daily lives of people, and reduce the living quality of people and bring heavy burden to the family and the society for nursing the people. Since the limb cannot be regenerated at the current medical level, fitting these amputees with prostheses is also an important means to compensate for the defective limb.
The general artificial limb has no active bending capability, is labored to use, and is easy to cause fatigue of a patient, and the general artificial limb is complex in mode adjustment, often needs special actions or manual adjustment, and is not natural and coherent.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the above-mentioned defect that prior art exists, provide laborsaving, the very big intelligent artificial limb who has the crooked locking function of initiative of patient's walking of facilitating.
The utility model provides a technical scheme that its technical problem adopted is: an intelligent prosthesis having active bend locking functionality, comprising a thigh member, a calf member and an ankle foot member, the calf member comprising: the ankle joint comprises a rack and a joint head hinged to the top of the rack, wherein the bottom of the rack is connected with an ankle foot piece; a hydraulic cylinder is hinged in the rack, and a hydraulic rod of the hydraulic cylinder is connected with a joint head; an active servo motor connected with the hinged end of the hydraulic rod is arranged on the joint head; the hydraulic cylinder active servo motors are all connected with the controller; the two sides of the rack are respectively and movably connected with a connecting rod, the upper part of the hydraulic cylinder is respectively connected with the two connecting rods, the two sides of the lower part of the joint head are provided with lock discs, and the inner sides of the connecting rods are provided with lock heads which can be contacted with the lock discs.
Furthermore, a threaded valve core communicated with the interior is arranged on the hydraulic cylinder, and the threaded valve core is connected with a servo motor arranged on the connecting rod; the hydraulic rod is connected with two pistons in the hydraulic cylinder, the middle of the two pistons is separated by a fixing plug to form two oil cavities for extension and flexion of the knee joint respectively, the two oil cavities are connected with a one-way valve and a digital needle valve driven by a servo motor respectively, and the servo motor receives a control instruction which is controlled and output by a controller and is used for controlling the opening degree of the needle valve to adjust the damping force of the knee joint.
Furthermore, the number of the threaded valve cores is two, the upper threads of the two threaded valve cores are sleeved with gear sets which are meshed with each other, and the outer sides of the gear sets are connected with the connecting rod.
Furthermore, the gear set comprises a clamping seat for mounting the gear, and the clamping seat is fixedly connected with the connecting rod.
Furthermore, the top of hydraulic stem articulates there is the connecting block, the connecting block is articulated with the joint head.
Furthermore, angle sensors connected with the controller are arranged on two sides of the joint head, and the angle sensors are connected with the rotating shaft of the connecting block.
Furthermore, a rubber ring is sleeved on the lock head.
The working principle is as follows: the controller collects angle sensor signals, drives the servo motor when determining the upstairs movement, converts the motor rotation into the vertical movement of the threaded valve core through the screw nut structure between the gear set and the threaded valve core to control the opening and closing size of the overflow valve, and further controls the telescopic damping of the hydraulic cylinder; when the joint head is pressed downwards, the lock plate extrudes the lock head connected with the connecting rod downwards, the threaded valve core is pressed downwards, the overflow valve is closed, the effect of locking the bending and stretching of the hydraulic cylinder is achieved, and the hydraulic cylinder is locked in a standing mode.
The beneficial effects of the utility model are that, realize the crooked damped intelligent regulation of artificial limb, can realize the joint locking when standing, strengthen the articulated stability of artificial limb greatly, have upstairs and downstairs function, it is natural smooth and easy to go upstairs mode switch.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the drawings: 1. joint head, 11, lock dish, 2, pneumatic cylinder, 3, hydraulic stem, 31, connecting block, 4, servo motor, 5, connecting rod, 51, tapered end, 6, gear train, 61, cassette, 7, screw valve core, 8, angle sensor, 9, frame.
Detailed Description
The following embodiments are described in detail with reference to the following examples:
as shown in FIG. 1, an embodiment of an intelligent prosthesis with active flexion locking includes a thigh member, a calf member, and an ankle member, the calf member including: the ankle joint comprises a frame 9 and a joint head 1 hinged to the top of the frame 9, wherein the bottom of the frame 9 is connected with an ankle foot piece; a hydraulic cylinder 2 is hinged in the frame 9, and a hydraulic rod 3 of the hydraulic cylinder 2 is connected with the joint head 1; an active servo motor connected with the hinged end of the hydraulic rod 3 is arranged on the joint head 1; the active servo motors of the hydraulic cylinders 2 are all connected with a controller.
The two sides of the frame 9 are respectively movably connected with a connecting rod 5, the upper part of the hydraulic cylinder 2 is respectively connected with the two connecting rods 5, the two sides of the lower part of the joint head 1 are provided with lock discs 11, the inner side of the connecting rod 5 is provided with a lock head 51 which can be contacted with the lock discs 11, and the lock head 51 is sleeved with a rubber ring.
The hydraulic cylinder 2 is provided with a threaded valve core 7 communicated with the interior, and the threaded valve core 7 is connected with a servo motor arranged on the connecting rod 5; the hydraulic rod 3 is connected with two pistons in the hydraulic cylinder 4, the middle of the two pistons is separated by a fixed plug to form two oil cavities for knee joint extension and flexion respectively, the two oil cavities are connected with a one-way valve and a digital needle valve driven by a servo motor respectively, and the servo motor receives a control command output by the controller and is used for controlling the opening of the needle valve to adjust the knee joint damping force.
The threaded valve cores 7 are arranged side by side in two numbers, the threads on the upper parts of the two threaded valve cores 7 are respectively sleeved with a gear set 6 which is meshed with each other, the outer side of the gear set 6 is connected with the connecting rod 5, the gear set 6 comprises a clamping seat 61 for mounting a gear, and the clamping seat 61 is fixedly connected with the connecting rod 5.
The top of hydraulic stem 3 articulates there is connecting block 31, and connecting block 31 articulates with joint head 1.
The both sides of joint head 1 all are equipped with the angle sensor 8 of being connected with the controller, and angle sensor 8 is connected with the rotation axis of connecting block 31.
Those not described in detail in the specification are well within the skill of the art.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be considered to be within the protection scope of the present invention.
Claims (7)
1. An intelligent prosthesis having active bend locking functionality, comprising a thigh member, a calf member and an ankle foot member, the calf member comprising: the ankle joint comprises a rack and a joint head hinged to the top of the rack, wherein the bottom of the rack is connected with an ankle foot piece; a hydraulic cylinder is hinged in the rack, and a hydraulic rod of the hydraulic cylinder is connected with a joint head; an active servo motor connected with the hinged end of the hydraulic rod is arranged on the joint head; the hydraulic cylinder active servo motors are all connected with the controller; the two sides of the rack are respectively and movably connected with a connecting rod, the upper part of the hydraulic cylinder is respectively connected with the two connecting rods, the two sides of the lower part of the joint head are provided with lock discs, and the inner sides of the connecting rods are provided with lock heads which can be contacted with the lock discs.
2. An intelligent artificial limb with an active bending locking function according to claim 1, wherein the hydraulic cylinder is provided with a threaded valve core communicated with the inside, and the threaded valve core is connected with a servo motor arranged on a connecting rod; the hydraulic rod is connected with two pistons in the hydraulic cylinder, the middle of the two pistons is separated by a fixed plug to form two oil cavities for knee joint extension and flexion respectively, and the two oil cavities are connected with a one-way valve and a needle valve for adjusting the threaded valve core respectively.
3. An intelligent artificial limb with an active bending locking function according to claim 2, wherein the threaded valve cores are arranged in two side by side, the upper threads of the two threaded valve cores are sleeved with gear sets which are engaged with each other, and the outer sides of the gear sets are connected with the connecting rod.
4. An intelligent prosthetic limb with active bending locking function according to claim 3, wherein the gear set includes a clamp seat for mounting a gear, and the clamp seat is fixedly connected with the connecting rod.
5. An intelligent artificial limb with active bending locking function according to claim 4 is characterized in that the top end of the hydraulic rod is hinged with a connecting block, and the connecting block is hinged with a joint head.
6. An intelligent artificial limb with active bending locking function according to claim 5 is characterized in that the two sides of the joint head are provided with angle sensors connected with the controller, and the angle sensors are connected with the rotating shaft of the connecting block.
7. An intelligent prosthesis with active bending locking function as claimed in claim 6, wherein the locking head is sleeved with a rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121055993.4U CN214967179U (en) | 2021-05-18 | 2021-05-18 | Intelligent artificial limb with active bending and locking functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121055993.4U CN214967179U (en) | 2021-05-18 | 2021-05-18 | Intelligent artificial limb with active bending and locking functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214967179U true CN214967179U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121055993.4U Active CN214967179U (en) | 2021-05-18 | 2021-05-18 | Intelligent artificial limb with active bending and locking functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214967179U (en) |
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2021
- 2021-05-18 CN CN202121055993.4U patent/CN214967179U/en active Active
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