Temperature sensing artificial hand

By designing fixing components, finger components and servo motors in the fake hand, combined with the first and second traction mechanisms and temperature sensing pads, the problem that existing fake hand is difficult to feedback the temperature is solved, and higher usage efficiency and perceived accuracy are achieved.

CN119791921AInactive Publication Date: 2025-04-11CHONGQING CREATION VOCATIONAL COLLEGE
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Patent Information

Application Number
CN202411970409.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-04-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing fake hands find it difficult to provide feedback on the touch feeling, such as temperature, which makes it difficult for users to effectively understand the touch temperature, and reduces the efficiency of the fake hands.

Method used

A temperature sensing fake hand is designed, using technical means such as fixed components, finger components and servo motors. The finger components can be bent to form a grip state through the first and second traction mechanisms, and a temperature sensing pad is provided in the middle finger sleeve and finger sleeve to achieve temperature sensing and feedback.

Benefits of technology

Through stable and firm electrical connection and traction mechanism, the adjustability and use stability of finger components are improved; through accurate temperature sensing and feedback, the user's perception accuracy of temperature is improved, and the use efficiency of the prosthetic hand is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a temperature sensing artificial hand, and relates to the technical field of artificial limb structures. The left end of the device body is electrically connected with the fixing assembly, a first traction mechanism is arranged at the left end of the fixing assembly, the fixing assembly is connected with the finger assembly through the first traction mechanism, a second traction mechanism is arranged in the finger assembly, and the finger assembly can be driven by the second traction mechanism to be bent to form a holding state. A servo motor is arranged in the fixing assembly and can be electrically connected with the first traction mechanism and the second traction mechanism, and the servo motor is electrically connected with the interior of the device body. Through the arrangement of the fixing assembly, the finger assemblies can be more stable when electrically connected with the device body, the finger assemblies can be firmer when connected with the device body, and through the arrangement of the first traction mechanism and the second traction mechanism, the finger assemblies can be more convenient to bend to form a holding state.
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Description

Technical Field

[0001] The invention relates to the technical field of prosthetic structures, and in particular to a temperature sensing prosthetic hand. Background Art

[0002] Prosthetic hands are a kind of modern rehabilitation aids, which provide people with limb loss with the opportunity to regain the ability to take care of themselves and work, so that people with limb loss can use the prosthetic hand to bring convenience to themselves and adapt to life faster. However, the existing prosthetic hands have some shortcomings, such as:

[0003] Application number: CN202210097806.1 is a self-driven modular half-palm prosthetic hand, which improves the practicality of the prosthetic hand, improves the comfort of the patient in wearing it, and increases the utilization rate of the prosthetic fingers; however, in actual use, the device is difficult to provide feedback on tactile sensations such as temperature, making it difficult for the user to effectively understand the tactile temperature when using it, thereby reducing the efficiency of the prosthetic hand;

[0004] So we proposed a temperature-sensing prosthetic hand to solve the problems raised above. Summary of the invention

[0005] The purpose of the present invention is to provide a temperature-sensing prosthetic hand to solve the problem raised in the above background technology that most of the existing prosthetic hand devices on the market are difficult to provide feedback on tactile sensations such as temperature, making it difficult for users to effectively understand the tactile temperature when using the prosthetic hand, thereby reducing the efficiency of using the prosthetic hand.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a temperature sensing artificial hand, comprising a device body, a fixing assembly connected to the left end of the device body, and a finger assembly; the left end of the device body is electrically connected to the fixing assembly, and a first traction mechanism is provided at the left end of the fixing assembly, and the fixing assembly is connected to the finger assembly through the first traction mechanism, a second traction mechanism is provided inside the finger assembly, and the finger assembly can be driven by the second traction mechanism to bend itself to form a gripping state;

[0007] A servo motor is arranged inside the fixing component, and the servo motor can be electrically connected to the first traction mechanism and the second traction mechanism, and the servo motor is electrically connected to the inside of the device body.

[0008] By setting up the fixing component, the finger component can be more stable when electrically connected to the device body, and can be more secure when connecting multiple groups of finger components. In addition, by setting up the first traction mechanism and the second traction mechanism, the finger component can be more convenient when bent to form a gripping state, thereby making the device more stable when adjusted.

[0009] As a preferred technical solution of the present invention, a storage battery is provided inside the device body, and a circuit board is connected to the front end of the storage battery, and a data transmitter is connected to the right end of the circuit board, a processor and a data storage device are connected to the right end of the data transmitter, and the left end of the storage battery is connected to a fixed component.

[0010] The adoption of the above technical solution can make the device more convenient when receiving data, thereby increasing the efficiency of the device in receiving and processing data and increasing the adjustability of the device.

[0011] As a preferred technical solution of the present invention, an integrated control panel is connected to the top of the data transmitter, and the integrated control panel is connected to the top of the device body, and a display screen and control buttons are connected to the top of the integrated control panel, a silicone covering pad is connected to the left end of the integrated control panel, and the silicone covering pad is connected to the top of the device body through a rotating shaft, and the silicone covering pad can cover the integrated control panel.

[0012] The above technical solution enables the user or medical staff to operate through the integrated control panel when adjusting or presetting the device, thereby increasing the adjustability of the device during use.

[0013] As a preferred technical solution of the present invention, the fixing component includes a circuit connection shell, and an electrical socket is provided at the right end of the circuit connection shell, and the fixing component is electrically connected to the storage battery inside the device body through the electrical socket, and a fixed finger sleeve is connected to the left end of the circuit connection shell, and a servo motor is provided inside the fixed finger sleeve.

[0014] The adoption of the above technical solution can make it more convenient for the storage battery to transmit power to the servo motor inside the fixed finger sleeve, and can also prevent current leakage during the power transmission process, thereby increasing the stability of the device during operation.

[0015] As a preferred technical solution of the present invention, a first connecting frame is provided at the left end of the fixed finger sleeve, and a first electric roller is connected to the inner side of the first connecting frame, and the first electric roller has a built-in first motor, the first motor is fixedly connected to the first connecting frame, a first torsion spring shaft is provided on the front and rear sides of the first electric roller, and the first torsion spring shaft is rotatably connected to the first connecting frame, a first traction wire is provided on the outer side of the first electric roller, and the top of the first traction wire is connected to the finger assembly, and a first connecting spring is provided on the outer side of the first traction wire.

[0016] The adoption of the above technical solution can make the fixed finger sleeve more stable when connected to the middle finger sleeve, thereby increasing the stability of the device during operation.

[0017] As a preferred technical solution of the present invention, the finger assembly includes two groups of middle finger sleeves on the left and right, and the top of the left end of the first traction line is connected to the top of the middle finger sleeve on the right, and the top of the left end of the first connecting spring is also connected to the top of the middle finger sleeve on the right, a first sensing pad is provided at the bottom of the middle finger sleeve, and a second connecting frame is connected to the left end of the middle finger sleeve, and the second connecting frame is connected to the second traction mechanism; the left end of the middle finger sleeve at the left end of the finger assembly is connected to the finger sleeve head through the second traction mechanism; the right end of the middle finger sleeve at the left end of the finger assembly is fixedly connected to the first torsion spring shaft.

[0018] The above technical solution enables the middle finger sleeve to sense temperature through the first sensing pad, and makes the middle finger sleeve more stable when connected to the finger sleeve head, thereby increasing the stability of the device during operation.

[0019] As a preferred technical solution of the present invention, an insulating coating is provided on the outer side of the middle finger sleeve, and the second traction mechanism includes a second electric roller, and the second electric roller has a built-in second motor, second torsion spring shafts are provided at both front and rear ends of the second electric roller, and the second electric roller is rotatably connected to the second connecting frame through the second torsion spring shaft, and the second motor is fixedly connected to the second connecting frame, a second traction wire is provided on the outer side of the second electric roller, and a second connecting spring is provided on the outer side of the second traction wire.

[0020] The above technical solution can make

[0021] As a preferred technical solution of the present invention, the top left end of the second traction line is connected to the inside of the finger cap, and the top left end of the second connecting spring is connected to the inside of the finger cap, and the left end of the finger cap is connected to a silicone sensing block, and the bottom of the finger cap is connected to a second sensing pad.

[0022] The adoption of the above technical solution can make it more convenient to sense the temperature on the inner side of the finger assembly, and can make the middle finger sleeve and the finger sleeve head more accurate when sensing the temperature, so that the device can be more accurate when simulating a human hand, thereby enabling the user to better sense the temperature and increasing the accuracy of the device in sensing temperature.

[0023] As a preferred technical solution of the present invention, a second joint protection frame is provided on the top of the finger sleeve head, and the bottom of the second joint protection frame is fixedly connected to the second torsion spring shaft, and a first joint protection frame is provided on the top of the middle finger sleeve, and the bottom of the first joint protection frame is fixedly connected to the second torsion spring shaft;

[0024] The second sensing pad and the first sensing pad are made of the same material, and the first sensing pad, the second sensing pad and the silicone sensing block are provided with temperature resistance sensing chips inside to sense the temperature, and the first sensing pad, the second sensing pad and the silicone sensing block are electrically connected to the data transmitter inside the device body through the circuit, and when the finger assembly is routing the circuit, the circuit is routed through the cavity inside the middle finger sleeve and the finger sleeve head, and the servo motor is electrically connected to the first motor and the second motor through the circuit.

[0025] The above technical solution enables the servo motor to be circuit-connected with the first motor, the second motor and other devices, and enables the servo motor to transmit power to and control the first motor, the second motor and other devices, so that each joint of the finger assembly can move independently, increasing the adjustability of the device when in use.

[0026] As a preferred technical solution of the present invention, a connecting belt is provided at the bottom of the device body, a fixing clip is provided at the bottom of the connecting belt, and a space for placing a wrist is reserved at the bottom of the device body.

[0027] The adoption of the above technical solution can make the device more stable when being fixed to the wrist of the user, thereby increasing the firmness of the device during installation.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the fixing assembly, the finger assembly can be more stable when electrically connected to the device body, and can be more secure when connecting multiple groups of finger assemblies, and by setting the first traction mechanism and the second traction mechanism, the finger assembly can be more convenient when bending to form a gripping state, so that the device can be more stable when adjusted;

[0029] Furthermore, by providing a first sensing pad at the bottom of the middle finger sleeve and providing a silicone sensing block at the left end of the finger sleeve head, the inner side of the finger assembly can be more convenient for temperature sensing, and the middle finger sleeve and the finger sleeve head can be more accurate in sensing temperature, so that the device can be more accurate in simulating a human hand, thereby enabling the user to better sense the temperature, and increasing the accuracy of the device in sensing temperature;

[0030] Furthermore, by arranging a servo motor inside the fixed finger cuff and making circuit connection between the servo motor and devices such as the first motor and the second motor, the servo motor can transmit power to and control the first motor and the second motor, so that each joint of the finger assembly can move independently, thereby increasing the adjustability of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the elevation structure of the present invention;

[0032] Figure 2 A schematic diagram of the elevation structure of the bending demonstration of the present invention;

[0033] Figure 3 It is a schematic diagram of a three-dimensional structure of a cross section of the device body of the present invention;

[0034] Figure 4 It is a schematic diagram of the three-dimensional structure of the parts of the fixing assembly of the present invention;

[0035] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0036] Figure 6 is a schematic diagram of a three-dimensional structure of a cross section of a finger assembly of the present invention;

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the middle finger sleeve of the present invention after parts are disassembled;

[0038] Figure 8 It is a schematic diagram of the disassembly structure of the parts of the second electric roller of the present invention;

[0039] Fig. 9 It is a three-dimensional structural schematic diagram of the disassembled parts of the finger cover head of the present invention.

[0040] In the figure: 1. device body; 101. storage battery; 102. circuit board; 103. data transmitter; 104. processor; 105. data storage; 106. integrated control board; 107. display screen; 108. control button; 109. silicone cover pad; 2. fixing assembly; 201. circuit connection shell; 202. fixing finger sleeve; 203. servo motor; 204. first connecting frame; 205. first electric roller; 206. first motor; 207. first torsion spring shaft ; 208, first traction line; 209, first connecting spring; 3, finger assembly; 301, middle finger sleeve; 302, first joint protection frame; 303, first sensing pad; 304, second connecting frame; 305, second electric roller; 306, second motor; 307, second torsion spring shaft; 308, second traction line; 309, second connecting spring; 310, finger sleeve head; 311, second joint protection frame; 312, silicone sensing block; 313, second sensing pad; 4, connecting belt. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] See also Figure 1-Figure 9 The present invention provides a technical solution: a temperature sensing artificial hand, comprising a device body 1, a fixing component 2 and a finger component 3 connected to the left end of the device body 1; the left end of the device body 1 is electrically connected to the fixing component 2, and a first traction mechanism is provided at the left end of the fixing component 2, and the fixing component 2 is connected to the finger component 3 through the first traction mechanism, a second traction mechanism is provided inside the finger component 3, and the finger component 3 can be driven by the second traction mechanism to bend itself to form a gripping state;

[0043] A servo motor 203 is provided inside the fixing assembly 2, and the servo motor 203 can be electrically connected to the first traction mechanism and the second traction mechanism, and the servo motor 203 is electrically connected to the inside of the device body 1;

[0044] A storage battery 101 is provided inside the device body 1, and a circuit board 102 is connected to the front end of the storage battery 101, and a data transmitter 103 is connected to the right end of the circuit board 102, and a processor 104 and a data storage 105 are connected to the right end of the data transmitter 103, and the left end of the storage battery 101 is connected to the fixing component 2;

[0045] An integrated control panel 106 is connected to the top of the data transmitter 103, and the integrated control panel 106 is connected to the top of the device body 1, and a display screen 107 and a control button 108 are connected to the top of the integrated control panel 106. A silicone cover pad 109 is connected to the left end of the integrated control panel 106, and the silicone cover pad 109 is connected to the top of the device body 1 through a rotating shaft, and the silicone cover pad 109 can cover the integrated control panel 106;

[0046] The fixing component 2 includes a circuit connection shell 201, and an electrical socket is provided at the right end of the circuit connection shell 201, and the fixing component 2 is electrically connected to the storage battery 101 inside the device body 1 through the electrical socket, and a fixing finger sleeve 202 is connected to the left end of the circuit connection shell 201, and a servo motor 203 is provided inside the fixing finger sleeve 202;

[0047] A first connecting frame 204 is provided at the left end of the fixed finger sleeve 202, and a first electric roller 205 is connected to the inner side of the first connecting frame 204, and the first electric roller 205 has a first motor 206 built therein, and the first motor 206 is fixedly connected to the first connecting frame 204, a first torsion spring shaft 207 is provided at the front and rear sides of the first electric roller 205, and the first torsion spring shaft 207 is rotatably connected to the first connecting frame 204, a first traction line 208 is provided at the outer side of the first electric roller 205, and the top of the first traction line 208 is connected to the finger assembly 3, and a first connection spring 209 is provided at the outer side of the first traction line 208;

[0048] The finger assembly 3 includes two groups of middle finger sleeves 301 on the left and right, and the top of the left end of the first traction line 208 is connected to the top of the middle finger sleeve 301 on the right, and the top of the left end of the first connection spring 209 is also connected to the top of the middle finger sleeve 301 on the right, and the bottom of the middle finger sleeve 301 is provided with a first sensing pad 303, and the left end of the middle finger sleeve 301 is connected to the second connecting frame 304, and the second connecting frame 304 is connected to the second traction mechanism; the left end of the middle finger sleeve 301 at the left end of the finger assembly 3 is connected to the finger sleeve head 310 through the second traction mechanism; the right end of the middle finger sleeve 301 at the left end of the finger assembly 3 is fixedly connected to the first torsion spring shaft 207;

[0049] An insulating coating is provided on the outer side of the middle finger sleeve 301, and the second traction mechanism includes a second electric roller 305, and the second electric roller 305 has a second motor 306 built therein, and second torsion spring shafts 307 are provided at both the front and rear ends of the second electric roller 305, and the second electric roller 305 is rotatably connected to the second connecting frame 304 through the second torsion spring shaft 307, and the second motor 306 is fixedly connected to the second connecting frame 304, and a second traction line 308 is provided on the outer side of the second electric roller 305, and a second connection spring 309 is provided on the outer side of the second traction line 308;

[0050] The left top of the second pulling line 308 is connected to the inside of the finger cover head 310, and the left top of the second connecting spring 309 is connected to the inside of the finger cover head 310, and the left end of the finger cover head 310 is connected to a silicone sensing block 312, and the bottom of the finger cover head 310 is connected to a second sensing pad 313;

[0051] A second joint protection frame 311 is provided on the top of the finger sleeve head 310, and the bottom of the second joint protection frame 311 is fixedly connected to the second torsion spring shaft 307, and a first joint protection frame 302 is provided on the top of the middle finger sleeve 301, and the bottom of the first joint protection frame 302 is fixedly connected to the second torsion spring shaft 307;

[0052] The second sensing pad 313 and the first sensing pad 303 are made of the same material, and the first sensing pad 303, the second sensing pad 313 and the silicone sensing block 312 are provided with temperature resistance sensing chips to sense the temperature, and the first sensing pad 303, the second sensing pad 313 and the silicone sensing block 312 are electrically connected to the data transmitter 103 inside the device body 1 through a circuit. When the finger assembly 3 is routed, the circuit is routed through the cavity inside the middle finger sleeve 301 and the finger sleeve head 310, and the servo motor 203 is electrically connected to the first motor 206 and the second motor 306 through the circuit; a connecting belt 4 is provided at the bottom of the device body 1, and a fixing clip is provided at the bottom of the connecting belt 4, and a space for placing a wrist is reserved at the bottom of the device body 1.

[0053] Working principle: When using the temperature sensing prosthetic hand, firstly, the device body 1 is electrically connected to the fixed component 2, and then the fixed component 2 is connected to each finger component 3, so that the first traction mechanism inside the fixed component 2 and the second traction mechanism inside the finger component 3 are electrically connected to the fixed component 2, so that the user can control the finger component 3 through the device body 1, and transmit the temperature and other data fed back by the finger component 3 to the inside of the device body 1;

[0054] When the device body 1 is electrically connected to the circuit connection shell 201 inside the fixed component 2, the storage battery 101 can be electrically connected to the circuit connection shell 201, and then the processor 104 sends a signal to the circuit board 102 through the data transmitter 103, so that the circuit board 102 controls the battery usage of the storage battery 101, and when the finger component 3 transmits data such as temperature, the data is also transmitted to the processor 104 through the data transmitter 103, so that the processor 104 transmits data such as temperature to the display screen 107 set on the top of the integrated control board 106. When feeding back the temperature, the user can also install the bio-electrode device at the bottom of the device body 1, so that the user's wrist can feel the temperature fed back by the finger component 3;

[0055] When the left end of the circuit connection shell 201 is connected to the finger assembly 3, it can be connected to the right end of the finger assembly 3 through the fixed finger sleeve 202, and connected to the second traction mechanism circuit inside the finger assembly 3 through the servo motor 203 inside the fixed finger sleeve 202. When bending is required between the fixed finger sleeve 202 and the finger assembly 3, the first motor 206 can be used to drive the first electric roller 205 to rotate, thereby pulling the first traction line 208 and causing the first connection spring 209 to contract, so that the first torsion spring shaft 207 drives the middle finger sleeve 301 at the right end of the finger assembly 3 to rotate, thereby causing the middle finger sleeve 301 at the right end of the finger assembly 3 to bend;

[0056] When the finger sleeve head 310 needs to be bent, the finger sleeve head 310 can be driven to bend by the second traction mechanism inside the middle finger sleeve 301 at the left end of the finger assembly 3, that is, the servo motor 203 transmits power to the inside of the second motor 306, so that the second motor 306 drives the second electric roller 305 to rotate, so that the second electric roller 305 pulls the second traction line 308, so that the second traction line 308 pulls the top of the finger sleeve head 310, and at this time the second connection spring 309 will contract, so that the finger sleeve head 310 rotates through the second torsion spring shaft 307, thereby driving the finger sleeve head 310 to bend;

[0057] When the two sets of middle finger sleeves 301 and the bottom of the finger sleeve head 310 touch an object, the first sensing pad 303, the second sensing pad 313 and the silicone sensing block 312 will monitor the temperature, and transmit the value to the data transmitter 103 through the circuit, thereby completing the temperature sensing work.

[0058] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0059] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A temperature sensing artificial hand, comprising a device body (1), a fixing component (2) connected to the left end of the device body (1), and a finger component (3); characterized in that: The left end of the device body (1) is electrically connected to the fixed component (2), and the left end of the fixed component (2) is provided with a first traction mechanism, and the fixed component (2) is connected to the finger component (3) through the first traction mechanism, and a second traction mechanism is provided inside the finger component (3), and the finger component (3) can be driven by the second traction mechanism to bend itself to form a gripping state; A servo motor (203) is provided inside the fixing component (2), and the servo motor (203) can be electrically connected to the first traction mechanism and the second traction mechanism, and the servo motor (203) is electrically connected to the inside of the device body (1).

2. The temperature sensing prosthetic hand according to claim 1, characterized in that: A storage battery (101) is provided inside the device body (1), and the front end of the storage battery (101) is connected to a circuit board (102), and the right end of the circuit board (102) is connected to a data transmitter (103), the right end of the data transmitter (103) is connected to a processor (104) and a data storage device (105), and the left end of the storage battery (101) is connected to a fixing component (2).

3. The temperature sensing prosthetic hand according to claim 2, characterized in that: The top of the data transmitter (103) is connected to an integrated control panel (106), and the integrated control panel (106) is connected to the top of the device body (1), and the top of the integrated control panel (106) is connected to a display screen (107) and a control button (108), the left end of the integrated control panel (106) is connected to a silicone cover pad (109), and the silicone cover pad (109) is connected to the top of the device body (1) via a rotating shaft, and the silicone cover pad (109) can cover the integrated control panel (106).

4. The temperature sensing prosthetic hand according to claim 3, characterized in that: The fixing component (2) comprises a circuit connection shell (201), and an electrical socket is provided at the right end of the circuit connection shell (201), and the fixing component (2) is electrically connected to a storage battery (101) inside the device body (1) through the electrical socket, and a fixing finger sleeve (202) is connected to the left end of the circuit connection shell (201), and a servo motor (203) is provided inside the fixing finger sleeve (202).

5. The temperature sensing prosthetic hand according to claim 4, characterized in that: A first connecting frame (204) is provided at the left end of the fixed finger sleeve (202), and a first electric roller (205) is connected to the inner side of the first connecting frame (204), and the first electric roller (205) has a first motor (206) built therein, and the first motor (206) is fixedly connected to the first connecting frame (204), a first torsion spring shaft (207) is provided at the front and rear sides of the first electric roller (205), and the first torsion spring shaft (207) is rotatably connected to the first connecting frame (204), a first traction line (208) is provided on the outer side of the first electric roller (205), and the top of the first traction line (208) is connected to the finger assembly (3), and a first connection spring (209) is provided on the outer side of the first traction line (208).

6. The temperature sensing prosthetic hand according to claim 5, characterized in that: The finger assembly (3) comprises two groups of middle finger sleeves (301) on the left and right, and the top of the left end of the first traction line (208) is connected to the top of the middle finger sleeve (301) on the right, and the top of the left end of the first connection spring (209) is also connected to the top of the middle finger sleeve (301) on the right, and the bottom of the middle finger sleeve (301) is provided with a first sensing pad (303), and the left end of the middle finger sleeve (301) is connected to a second connecting frame (304), and the second connecting frame (304) is connected to a second traction mechanism; the left end of the middle finger sleeve (301) at the left end of the finger assembly (3) is connected to the finger sleeve head (310) through the second traction mechanism; and the right end of the middle finger sleeve (301) at the left end of the finger assembly (3) is fixedly connected to the first torsion spring shaft (207).

7. The temperature sensing prosthetic hand according to claim 6, characterized in that: An insulating coating is provided on the outer side of the middle finger sleeve (301), and the second traction mechanism includes a second electric roller (305), and the second electric roller (305) has a second motor (306) built therein, and second torsion spring shafts (307) are provided at both the front and rear ends of the second electric roller (305), and the second electric roller (305) is rotatably connected to the second connecting frame (304) via the second torsion spring shaft (307), and the second motor (306) is fixedly connected to the second connecting frame (304), and a second traction line (308) is provided on the outer side of the second electric roller (305), and a second connection spring (309) is provided on the outer side of the second traction line (308).

8. The temperature sensing prosthetic hand according to claim 7, characterized in that: The top left end of the second pulling line (308) is connected to the inside of the finger sleeve (310), and the top left end of the second connecting spring (309) is connected to the inside of the finger sleeve (310), and the left end of the finger sleeve (310) is connected to a silicone sensing block (312), and the bottom of the finger sleeve (310) is connected to a second sensing pad (313).

9. The temperature sensing prosthetic hand according to claim 8, characterized in that: A second joint protection frame (311) is provided on the top of the finger sleeve head (310), and the bottom of the second joint protection frame (311) is fixedly connected to the second torsion spring shaft (307); and a first joint protection frame (302) is provided on the top of the middle finger sleeve (301), and the bottom of the first joint protection frame (302) is fixedly connected to the second torsion spring shaft (307); The second sensing pad (313) and the first sensing pad (303) are made of the same material, and the first sensing pad (303), the second sensing pad (313) and the silicone sensing block (312) are provided with temperature resistance sensing chips to sense temperature, and the first sensing pad (303), the second sensing pad (313) and the silicone sensing block (312) are electrically connected to a data transmitter (103) inside the device body (1) through a circuit. When the finger assembly (3) performs circuit routing, the circuit routing is performed through the cavity inside the middle finger sleeve (301) and the finger sleeve head (310), and the servo motor (203) is electrically connected to the first motor (206) and the second motor (306) through the circuit.

10. The temperature sensing prosthetic hand according to claim 9, characterized in that: A connecting belt (4) is provided at the bottom of the device body (1), a fixing clip is provided at the bottom of the connecting belt (4), and a space for placing a wrist is reserved at the bottom of the device body (1).

Citation Information

Patent Citations

  • A self-driven modular semipalm prosthetic hand

    CN114469464B