A retractable and adjustable artificial hand

Abstract

The utility model discloses a telescopic and adjustable artificial hand, comprising a palm connecting end, a telescopic column, a forearm end and a telescopic component, wherein the inner side of the palm connecting end is movably provided with the telescopic column, and one end of the telescopic column is fixedly provided with the forearm end; by arranging the telescopic column between the palm connecting end and the forearm end, the length of the artificial arm can be adjusted, and it can be mass-produced and adapted to most patients' arms according to specific conditions; by cooperating with a sliding groove, a rolling groove and a ball, the length adjustment of the telescopic column between the palm connecting ends is achieved; by cooperating with a clamping block rotating groove, a clamping fixing groove and a clamping fixing block, the adjusted and adapted telescopic column can be rotated and fixed quickly, and the operation is simple and convenient; by cooperating with an air pipe, a ball, an installation groove, an air machine and a connecting pipe, when the ball needs to slide and retract, the air machine blows air to push the ball to the rolling groove, and when it is not needed, the air machine sucks air to suck the ball into the contraction groove, so that the telescopic operation is smoother.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial limbs, in particular to a telescopically adjustable artificial hand. Background Art

[0002] Existing prostheses are artificial prostheses specially designed, manufactured and assembled using engineering technology to compensate for amputees or incomplete limb defects, also known as "prosthetic limbs". Their main function is to replace part of the functions of the lost limbs, so that amputees can restore a certain degree of self-care and work ability. They are suitable for amputees due to illness, traffic accidents, work-related accidents, sports injuries, etc.

[0003] Existing prosthetics are mainly customized to fit the arm lengths of different patients, which results in a long processing time and the inability to produce on an assembly line, resulting in a high price, which is not conducive to the mass production and development of the prosthetic industry.

[0004] Therefore, the utility model provides a telescopically adjustable artificial hand for solving the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a telescopically adjustable artificial hand to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a telescopically adjustable artificial hand comprises a palm connecting end, a telescopic column, a forearm end and a telescopic assembly, wherein the telescopic column is movably arranged on the inner side of the palm connecting end, and the forearm end is fixedly arranged on one end of the telescopic column.

[0007] Preferably, the telescopic assembly comprises a sliding groove, a card block rotating groove, a card connection fixing groove, a card connection fixing block, a rolling groove, a contraction groove, an air pipe, a ball, an installation groove, an air machine and a connecting pipe, the sliding groove is fixedly opened at one end of the palm connecting end, the card block rotating groove is fixedly opened at one end of the palm connecting end, one end of the palm connecting end is fixedly provided with a card connection fixing groove, one end of the telescopic column is fixedly provided with a card connection fixing block, one end of the telescopic column is fixedly provided with a rolling groove, one end of the rolling groove is fixedly provided with a contraction groove, one end of the contraction groove is fixedly provided with an air pipe, the ball is movably arranged on the inner side of the rolling groove, one end of the forearm end is fixedly provided with a installation groove, one end of the installation groove is fixedly provided with an air machine, and one end of the air machine is fixedly provided with a connecting pipe.

[0008] Preferably, the sliding groove corresponds to the setting position of the ball, and the two are adapted to be movably connected.

[0009] Preferably, the locking block rotation slot and the locking fixed block are arranged at corresponding positions and in the same number of groups, and the two are adapted to be movably locked.

[0010] Preferably, the rolling grooves and the balls are arranged at corresponding positions and in the same number of groups, and the two are adapted to be movably engaged.

[0011] Preferably, one end of the connecting tube is fixedly arranged on the outside of the air machine, and the other end of the connecting tube is fixedly arranged on one end of the air pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By arranging a telescopic column between the palm connection end and the forearm end, the length of the prosthetic arm can be adjusted, and it can be mass-produced and adapted to most patients' arms according to specific circumstances; through the cooperation of the sliding groove, the rolling groove and the ball, the length adjustment of the telescopic column between the palm connection ends can be achieved; through the cooperation of the clamping block rotating groove, the clamping fixing groove and the clamping fixing block, the adjusted and adapted telescopic column can be rotated and quickly fixed, and the operation is simple and convenient; through the cooperation of the air pipe, the ball, the installation groove, the air machine and the connecting pipe, when the ball needs to slide and retract, the air machine blows air to push the ball to the rolling groove, and when it is not needed, the air machine inhales air to suck the ball into the contraction groove, making the telescopic operation smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of the utility model;

[0015] Figure 2 This is a schematic diagram of the palm connection end structure connection of the utility model;

[0016] Figure 3 This is a schematic diagram of the connection of the telescopic column structure of the utility model;

[0017] Figure 4 This is a cross-sectional view of the telescopic column of the utility model;

[0018] Figure 5 This is an exploded view of the forearm end of the utility model.

[0019] In the figure: palm connecting end 1, telescopic column 2, forearm end 3, sliding slot 4, card block rotating slot 5, card fixing slot 6, card fixing block 7, rolling slot 8, contraction slot 9, air pipe 10, ball 11, installation slot 12, air machine 13, connecting pipe 14. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model are described clearly and completely below. The embodiments of the utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 5A telescopically adjustable artificial hand, the utility model provides a technical solution: a telescopically adjustable artificial hand comprises a palm connecting end 1, a telescopic column 2, a forearm end 3 and a telescopic assembly, the inner side of the palm connecting end 1 is movably provided with the telescopic column 2, and one end of the telescopic column 2 is fixedly provided with the forearm end 3; a sliding groove 4 in the telescopic assembly is fixedly opened at one end of the palm connecting end 1, a clamping block rotating groove 5 is fixedly opened at one end of the palm connecting end 1, one end of the palm connecting end 1 is fixedly provided with a clamping fixing groove 6, one end of the telescopic column 2 is fixedly provided with a clamping fixing block 7, the clamping block rotating groove 5 and the clamping fixing block 7 are arranged in corresponding positions and have the same number of groups, and the two are adapted and movably clamped; a rolling groove 8 is fixedly opened at one end of the telescopic column 2, and a contraction groove 9 is fixedly opened at one end of the rolling groove 8. After rotating to a suitable position, the air machine 13 inhales air to suck the ball 11 into the contraction groove 9; then the forearm end 3 is rotated to make the clamping fixing block 7 in the clamping position. The rotating card-engaging fixed groove 6 in the block rotating groove 5 realizes the fixing function; a trachea 10 is fixedly provided at one end of the contraction groove 9, and the ball 11 is movably arranged on the inner side of the rolling groove 8, and the sliding groove 4 corresponds to the setting position of the ball 11, and the two are adapted and movably connected; the rolling groove 8 and the ball 11 have corresponding setting positions and the same number of setting groups, and the two are adapted and movably connected; a mounting groove 12 is fixedly provided at one end of the forearm end 3, and a gas machine 13 is fixedly provided at one end of the mounting groove 12. The forearm end 3 is rotated to make the sliding groove 4 correspond to the rolling groove 8, and then the gas machine 13 is turned on to push the ball 11 to the rolling groove 8, so as to realize the length adjustment of the telescopic column 2 between the palm connecting end 1; a connecting pipe 14 is fixedly provided at one end of the gas machine 13; one end of the connecting pipe 14 is fixedly provided on the outside of the gas machine 13, and the other end of the connecting pipe 14 is fixedly provided at one end of the trachea 10; so that the prosthesis can be mass-produced and adapted to most patients' arms according to specific circumstances.

[0022] Working principle: When the length of the prosthesis needs to be adjusted during actual use, the forearm end 3 is rotated to make the sliding groove 4 correspond to the rolling groove 8, and then the air machine 13 is turned on to push the ball 11 to the rolling groove 8, so as to adjust the length of the telescopic column 2 between the palm connecting end 1. After rotating to the appropriate position, the air machine 13 inhales the ball 11 into the contraction groove 9; then the forearm end 3 is rotated to make the clamping fixing block 7 rotate in the clamping block rotating groove 5 and clamp the clamping fixing groove 6 to realize the fixing function; so that the prosthesis can be mass-produced and adapted to most patients' arms according to specific circumstances.

[0023] 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 retractable and adjustable artificial hand, characterized in that: It comprises a palm connecting end (1), a telescopic column (2), a small arm end (3) and a telescopic assembly, wherein the telescopic column (2) is movably arranged on the inner side of the palm connecting end (1), and the small arm end (3) is fixedly arranged on one end of the telescopic column (2); The telescopic assembly comprises a sliding groove (4), a card block rotating groove (5), a card connection fixing groove (6), a card connection fixing block (7), a rolling groove (8), a contraction groove (9), an air pipe (10), a ball bearing (11), a mounting groove (12), an air machine (13) and a connecting pipe (14); the sliding groove (4) is fixedly opened at one end of the palm connecting end (1); the card block rotating groove (5) is fixedly opened at one end of the palm connecting end (1); one end of the palm connecting end (1) is fixedly opened with a card connection fixing groove (6); the telescopic column (2) A clamping fixing block (7) is fixedly provided at one end of the telescopic column (2), a rolling groove (8) is fixedly provided at one end of the rolling groove (8), a contraction groove (9) is fixedly provided at one end of the contraction groove (9), an air pipe (10) is fixedly provided at one end of the contraction groove (9), the ball (11) is movably arranged on the inner side of the rolling groove (8), a mounting groove (12) is fixedly provided at one end of the forearm end (3), an air machine (13) is fixedly provided at one end of the mounting groove (12), and a connecting pipe (14) is fixedly provided at one end of the air machine (13).

2. The telescopically adjustable artificial hand according to claim 1, characterized in that: The sliding groove (4) and the ball (11) are arranged at corresponding positions, and the two are adapted to be movably engaged.

3. The telescopically adjustable artificial hand according to claim 1, characterized in that: The clamping block rotating groove (5) and the clamping fixed block (7) are arranged at corresponding positions and have the same number of groups, and the two are adapted to be movably clamped.

4. The telescopically adjustable artificial hand according to claim 1, characterized in that: The rolling groove (8) and the rolling balls (11) are arranged at corresponding positions and in the same number of groups, and the two are adapted to be movably connected.

5. The telescopically adjustable artificial hand according to claim 1, characterized in that: One end of the connecting pipe (14) is fixedly arranged on the outside of the air machine (13), and the other end of the connecting pipe (14) is fixedly arranged on one end of the air pipe (10).

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