Thumb connecting assembly of mechanical artificial hand

Abstract

The utility model relates to the field of artificial limb manufacturing, in particular to a mechanical artificial hand thumb connecting assembly which comprises an upper thumb, inserting rotating grooves are formed in the left end and the right end of the inner side of the upper thumb, and clamping holes are formed in the inner ends of the inserting rotating grooves. A motor groove is formed in the upper end in the lower thumb, a rotating motor is fixedly connected to the lower end face of the inner side of the motor groove, the output end of the rotating motor is fixedly connected with a speed reduction reversing box, and the output end of the speed reduction reversing box is fixedly connected with a joint disassembly and assembly structure; the artificial hand has the advantages that by arranging the joint disassembling and assembling structure, the artificial hand thumb can be disassembled at the joint, when the joint is collided or accidentally damaged, the upper finger and the lower finger can be disassembled at the joint, each part can be accurately repaired or replaced, and the repairing difficulty and the replacing cost are reduced.

Description

Technical Field

[0001] The utility model relates to the field of artificial limb manufacturing, in particular to a mechanical artificial hand thumb connection component. Background Art

[0002] Prosthesis is an artificial prosthesis specially designed and manufactured by engineering technology to compensate for the limbs of amputees or incomplete limb defects, also known as "prosthetic limbs". Its main function is to replace some of the functions of the lost limbs, so that amputees can restore a certain degree of self-care and work ability. Prosthesis includes a prosthetic hand, which is equipped with a prosthetic thumb.

[0003] A conventional prosthetic thumb is usually connected to a fixed shaft at the joint. If a collision or accidental damage occurs at the joint during use and repair is required, the entire finger can only be repaired or replaced. Not only is the repair procedure cumbersome, but if replacement is required, the repair cost is greatly increased. Therefore, the utility model proposes a mechanical prosthetic thumb connection assembly for solving the above problem. Utility Model Content

[0004] The utility model aims to provide a mechanical prosthetic thumb connection assembly to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical prosthetic thumb connection component, comprising an upper thumb, wherein the left and right ends of the inner side of the upper thumb are provided with plug-in rotation grooves, and the inner ends of the plug-in rotation grooves are provided with clamping holes; a lower thumb, wherein the upper end of the inner side of the lower thumb is provided with a motor groove, and the lower end surface of the inner side of the motor groove is fixedly connected to a rotating motor, and the output end of the rotating motor is fixedly connected to a reduction reversing box, and the output end of the reduction reversing box is fixedly connected to a joint disassembly and assembly structure.

[0006] Preferably, the joint disassembly and assembly structure includes a rotating shaft, the end of the rotating shaft is fixedly connected with a rotating block, the outer end surface of the rotating block is provided with a spring groove, the inner end of the spring groove is fixedly connected with a clamping spring, and the end of the clamping spring is fixedly connected with a clamping spring block.

[0007] Preferably, the rotating shaft is electrically connected to both sides of the output port of the reduction reversing box.

[0008] Preferably, a rounded corner is provided on the upper end of the snap-fit ​​spring block.

[0009] Preferably, the clamping spring is correspondingly inserted with a clamping hole.

[0010] Preferably, the rotating block is correspondingly plugged into the plug-in rotating groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a joint disassembly structure so that the prosthetic thumb can be disassembled at the joint. When a collision or accidental damage occurs at the joint, the upper finger and the lower finger can be separated at the joint, so that each part can be accurately repaired or replaced, reducing the difficulty of repair and the cost of replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a side view of the partial structure of the utility model;

[0015] Figure 3 It is a side view of the partial structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the internal connection of some structures of the utility model;

[0017] Figure 5 This is a partial structural cutaway view of the utility model.

[0018] In the figure: 1 upper thumb, 2 lower thumb, 3 clamping hole, 4 plug-in rotating slot, 5 rotating clamping block, 6 clamping spring block, 7 rotating motor, 8 speed reduction reversing box, 9 motor slot, 10 rotating shaft, 11 spring slot, 12 clamping spring. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a mechanical prosthetic thumb connection component, including an upper thumb 1, the left and right ends of the inner side of the upper thumb 1 are provided with plug-in rotating grooves 4, and the inner end of the plug-in rotating groove 4 is provided with a clamping hole 3; a lower thumb 2, the upper end of the lower thumb 2 is provided with a motor groove 9, the lower end surface of the inner side of the motor groove 9 is fixedly connected with a rotating motor 7, the output end of the rotating motor 7 is fixedly connected with a reduction reversing box 8, and the output end of the reduction reversing box 8 is fixedly connected with a joint disassembly structure.

[0022] Embodiment 2

[0023] The joint disassembly and assembly structure includes a rotating shaft 10, the end of which is fixedly connected to a rotating block 5, the outer end surface of the rotating block 5 is provided with a spring groove 11, the inner end of the spring groove 11 is fixedly connected to a clamping spring 12, the end of the clamping spring 12 is fixedly connected to a clamping block 6, the rotating shaft 10 is electrically connected to both sides of the output port of the reduction reversing box 8, the upper end of the clamping block 6 is provided with a rounded corner, the clamping spring 12 is correspondingly plugged with a clamping hole 3, the rotating block 5 is correspondingly plugged into the plug-in rotating groove 4, and the rotating shaft 10 is electrically connected to both sides of the output port of the reduction reversing box 8, the upper end of the clamping block 6 is provided with a rounded corner, the clamping spring 12 is correspondingly plugged with a clamping hole 3, and the rotating block 5 is correspondingly plugged into the plug-in rotating groove 4. During installation, the plug-in rotating groove 4 opened on the upper thumb 1 can be plugged along the rotating clamping block 5. At this time, the clamping hole 3 is clamped by the clamping block 6 through the rounded corner of the upper end edge line of the clamping spring block 6 to achieve fixation. Under the action of the rotating motor 7 and the reduction reversing box 8, the clamping block 5 is driven to rotate. During disassembly, first use your hands or tools to push the clamping block 6 into the rotating clamping block 5, then lift the upper thumb 1 to lock the clamping block 6, and then withdraw your hands or tools to completely remove the upper thumb 1.

[0024] In actual use, during installation, the plug-in rotating groove 4 opened on the upper thumb 1 can be plugged along the rotating clamping block 5. At this time, the clamping hole 3 is clamped by the clamping block 6 through the rounded corner of the upper end edge line of the clamping block 6 to achieve fixation. Under the action of the rotating motor 7 and the speed reduction reversing box 8, the clamping block 5 is driven to rotate. When disassembling, first push the clamping block 6 into the rotating clamping block 5 by hand or tool, then lift the upper thumb 1 to lock the clamping block 6, and then withdraw the hand or tool to completely remove the upper thumb 1.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical prosthetic thumb connection assembly, characterized in that: include An upper thumb (1), wherein the upper thumb (1) is provided with plug-in rotation grooves (4) at both left and right ends of the inner side, and a clamping hole (3) is provided at the inner end of the plug-in rotation groove (4); A lower thumb (2), wherein a motor slot (9) is provided at an inner upper end of the lower thumb (2), a rotating motor (7) is fixedly connected to an inner lower end surface of the motor slot (9), a reduction gear reversing box (8) is fixedly connected to an output end of the rotating motor (7), and a joint disassembly and assembly structure is fixedly connected to an output end of the reduction gear reversing box (8).

2. A mechanical prosthetic thumb connection assembly according to claim 1, characterized in that: The joint disassembly and assembly structure comprises a rotating shaft (10), the end of the rotating shaft (10) is fixedly connected to a rotating clamping block (5), the outer end surface of the rotating clamping block (5) is provided with a spring groove (11), the inner end of the spring groove (11) is fixedly connected to a clamping spring (12), and the end of the clamping spring (12) is fixedly connected to a clamping spring block (6).

3. The mechanical prosthetic thumb connection assembly according to claim 2, characterized in that: The rotating shaft (10) is electrically connected to both sides of the output port of the speed reduction reversing box (8).

4. The mechanical prosthetic hand thumb connection assembly according to claim 2, characterized in that: The upper end of the clamping elastic block (6) is provided with a rounded corner.

5. The mechanical prosthetic hand thumb connection assembly according to claim 2, characterized in that: The clamping spring (12) is correspondingly inserted with a clamping hole (3).

6. The mechanical prosthetic thumb connection assembly according to claim 2, characterized in that: The rotating clamp block (5) is correspondingly inserted into the inserting rotating groove (4).

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