A simulation massage finger based on a direct current motor
By using simulated massage fingers based on DC motors, and employing crankshafts and connecting rods to drive the staggered sliding of multiple pressing parts, the problem of existing massage devices being unable to press multiple points is solved, achieving higher massage comfort and effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN LICHI SENSING TECH CO LTD
- Filing Date
- 2025-03-10
- Publication Date
- 2026-06-26
AI Technical Summary
Existing massage devices cannot mimic the simultaneous pressure of multiple points on a human finger, resulting in insufficient massage comfort.
The device employs a simulated massage finger based on a DC motor. Through a crankshaft and connecting rod, multiple pressing components are driven to form a crank-slider structure, mimicking the massage motion of a human finger and achieving the staggered sliding of multiple pressing components.
It improves the comfort and effectiveness of the massage, closely resembling the finger massage style of a massage therapist.
Smart Images

Figure CN224403994U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of physiotherapy equipment technology, and in particular to a simulated massage finger based on a DC motor. Background Technology
[0002] Massage therapy after exercise or when the body is sore can relax muscles and tendons, promote blood circulation, and achieve a rapid recovery effect. Among common massage tools, neck and back massagers are the most common. The neck and back have physiological curves, which requires a certain degree of elasticity and flexibility from the massage head. When using a robotic arm to massage the back, a massage head is installed on the robotic arm. Existing massage heads are generally single circular or cylindrical structures, with the surface of the massage head fixed to the massage base with hard plastic. When performing robotic arm massage, only single points can be pressed, and it is impossible to achieve the action of pressing multiple points simultaneously like human fingers. As a result, the comfort level is difficult to meet the user's pressing requirements. In order to achieve a massage effect that is closer to the multiple fingers of a masseur, the massage head needs to be designed to mimic the structure of the human hand as much as possible to improve the massage effect.
[0003] Therefore, it is necessary to propose a simulated massage finger based on a DC motor to improve the massage effect of the massage head mounted on the robotic arm. Utility Model Content
[0004] To address the aforementioned problems, this invention proposes a simulated massage finger based on a DC motor to improve the massage effect of a massage head mounted on a robotic arm.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model proposes a simulated massage finger based on a DC motor, including a housing, a drive device, a crankshaft, multiple connecting rods, and multiple pressing elements. The drive device is fixedly connected to one side of the housing, and the rotating shaft of the drive device is fixedly connected to one end of the crankshaft. The other end of the crankshaft is rotatably connected to the other side of the housing. Each of the multiple connecting rods corresponds to one of the multiple pressing elements, and each of the multiple pressing elements is slidably connected to the housing. The crankshaft forms multiple crank-slider structures with the multiple connecting rods and the multiple pressing elements, and each of the multiple pressing elements extends outward from the housing.
[0007] Furthermore, the crankshaft is connected to multiple connecting rods and multiple pressing members to form multiple staggered sliding crank-slider structures.
[0008] Furthermore, a mounting groove is provided on one side of the housing, and the drive device is housed in the mounting groove.
[0009] Furthermore, a rotating support boss is provided on one side of the housing, and one end of the crankshaft is inserted into the rotating support boss and rotatably connected to the rotating support boss.
[0010] Furthermore, the rotating support boss is provided with a rotating groove, and one end of the crankshaft is provided with a rotating column, which is received in the rotating groove and slidably connected to the groove wall.
[0011] Furthermore, a bearing is provided inside the rotating support boss, the bearing is located on one side of the rotating groove, and the rotating column passes through the bearing and is fixedly connected to the inner ring of the bearing.
[0012] Furthermore, the crankshaft is provided with a plurality of crank connection positions, which are arranged sequentially along the crankshaft direction. Each crank connection position corresponds to a connecting rod, and the crank connection position is rotatably connected to one end of the connecting rod.
[0013] Furthermore, the adjacent crank connection positions are staggered by an angle.
[0014] Furthermore, the housing is provided with a plurality of sliding grooves, each of which corresponds to a plurality of pressing members. A portion of each pressing member is housed within a sliding groove and is slidably connected to the groove wall.
[0015] Furthermore, the pressing member is provided with a liquid guiding channel, which extends from one end of the pressing member to the other end of the pressing member.
[0016] The beneficial effects of this utility model are:
[0017] This invention uses a drive device to rotate the crankshaft, which in turn drives multiple connecting rods to push multiple pressing components in a crank-slider motion. This causes the pressing components to perform actions similar to a masseur's fingers repeatedly pressing on a user's skin, thus mimicking human fingers for massage and improving massage comfort. In summary, this simulated massage finger based on a DC motor can mimic human fingers for massage, improving the massage effect of the massage head mounted on the robotic arm. Attached Figure Description
[0018] Figure 1 This is a diagram showing the internal structure of the simulated massage finger based on a DC motor according to this invention.
[0019] Figure 2 for Figure 1 Enlarged schematic diagram of label A;
[0020] Figure 3 This is a schematic diagram of the housing of the simulated massage finger based on a DC motor according to this utility model;
[0021] Figure 4 This is a schematic diagram of the pressing component of the simulated massage finger based on a DC motor according to this utility model.
[0022] The attached figures are labeled as follows:
[0023] Housing 1, mounting groove 11, rotating support boss 12, rotating groove 121, bearing 122, sliding groove 13;
[0024] Drive unit 2;
[0025] Crankshaft 3, rotating column 31;
[0026] Connecting rod 4;
[0027] Pressing element 5, liquid guiding channel 51. Detailed Implementation
[0028] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.
[0029] Please refer to Figures 1-4 This utility model proposes a simulated massage finger based on a DC motor, including a housing 1, a drive device 2, a crankshaft 3, multiple connecting rods 4, and multiple pressing parts 5. The drive device 2 is fixedly connected to one side inside the housing 1. The rotating shaft of the drive device 2 is fixedly connected to one end of the crankshaft 3, and the other end of the crankshaft 3 is rotatably connected to the other side inside the housing 1. The multiple connecting rods 4 correspond one-to-one with the multiple pressing parts 5. The multiple pressing parts 5 are all slidably connected inside the housing 1. The crankshaft 3 forms multiple crank-slider structures with the multiple connecting rods 4 and the multiple pressing parts 5. The multiple pressing parts 5 extend outward from inside the housing 1.
[0030] In this embodiment, the drive device 2 is a DC motor. When using this utility model, the housing 1 is installed on the robotic arm, and then the drive device 2 is powered on. The drive device 2 drives the crankshaft 3 to rotate, so that the crankshaft 3 simultaneously drives multiple connecting rods 4 to push multiple pressing parts 5 to move like a crank slider. That is, the multiple pressing parts 5 slide back and forth under the drive of the crankshaft 3, so that the pressing parts 5 make a similar action to a masseur repeatedly pressing the user's skin with his fingers, that is, imitating human fingers to massage, which improves the comfort of the massage.
[0031] In summary, this simulated massage finger based on a DC motor can mimic the massage function of a human finger, thus improving the massage effect of the massage head mounted on the robotic arm.
[0032] In this embodiment, the crankshaft 3 forms multiple staggered crank-slider structures with multiple connecting rods 4 and multiple pressing elements 5. The staggered sliding of the multiple pressing elements 5 can mimic the alternating pressing of a massage therapist's fingers, forming different massage styles and improving the comfort of the massage.
[0033] In this embodiment, a mounting groove 11 is provided on one side of the housing 1. The drive device 2 is housed in the mounting groove 11. When installing the drive device 2, the drive device 2 is placed in the mounting groove 11 and then fixed with screws. The shape of the mounting groove 11 is adapted to the shape of the drive device 2.
[0034] In this embodiment, a rotating support boss 12 is provided on one side of the housing 1. One end of the crankshaft 3 is inserted into the rotating support boss 12 and rotatably connected to the rotating support boss 12. When installing the crankshaft 3, the housing 1 needs to be opened. Then, one end of the crankshaft 3 is first installed on the shaft of the drive device 2 so that the crankshaft 3 and the drive device 2 are integrated. Then, the other end of the crankshaft 3 is inserted into the rotating support boss 12, and then the drive device 2 is fixed.
[0035] In this embodiment, the rotating support boss 12 is provided with a rotating groove 121, and one end of the crankshaft 3 is provided with a rotating column 31. The rotating column 31 is housed in the rotating groove 121 and is slidably connected to the groove wall of the rotating groove 121. When the crankshaft 3 is installed on the rotating support boss 12, the rotating column 31 is aligned with the rotating groove 121, and then the rotating column 31 is inserted into the rotating groove 121.
[0036] In this embodiment, a bearing 122 is provided inside the rotating support boss 12. The bearing 122 is located on one side of the rotating groove 121. The rotating column 31 passes through the bearing 122 and is fixedly connected to the inner ring of the bearing 122. The bearing 122 is used to improve the smoothness of the crankshaft 3 when rotating. When installing the crankshaft 3, the rotating column 31 is aligned with the inner hole of the bearing 122 and then inserted, so that the rotating column 31 passes through the bearing 122 and reaches the rotating groove 121.
[0037] In this embodiment, the crankshaft 3 is provided with a plurality of crank connection positions 32, which are arranged sequentially along the crankshaft direction. Each crank connection position 32 corresponds to a connecting rod 4, and the crank connection position 32 is rotatably connected to one end of the connecting rod 4. When the crankshaft 3 rotates, the crank connection position 32 drives the connecting rod 4 to drive the pressing member 5 to move the crank slider.
[0038] In this embodiment, the adjacent crank connection positions 32 are staggered by an angle of 30 to 80 degrees. If there are 4 pressing parts 5, the optimal staggered angle is 60 degrees. The staggered angle can be set according to the number of pressing parts 5.
[0039] In this embodiment, the housing 1 is provided with a plurality of sliding grooves 13, each of which corresponds to a plurality of pressing members 5. A portion of the pressing member 5 is housed in the sliding groove 13 and is slidably connected to the groove wall of the sliding groove 13. The sliding groove 13 is used to provide a smooth sliding channel for the pressing member 5 so that the pressing member 5 can perform continuous reciprocating sliding.
[0040] In this embodiment, the pressing member 5 is provided with a liquid guiding channel 51, which extends from one end of the pressing member 5 to the other end of the pressing member 5. When multiple pressing members 5 are pressed, massage oil can be introduced through the liquid guiding channel 51. During the massage process, the massage oil introduction device in the robotic hand can control the flow of a preset amount of massage oil from each of the multiple pressing members 5 to improve the massage effect.
[0041] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.
Claims
1. A simulated massage finger based on a DC motor, characterized in that, The device includes a housing, a drive unit, a crankshaft, multiple connecting rods, and multiple pressing elements. The drive unit is fixedly connected to one side of the housing. The shaft of the drive unit is fixedly connected to one end of the crankshaft, and the other end of the crankshaft is rotatably connected to the other side of the housing. Each of the multiple connecting rods corresponds to one of the multiple pressing elements, and each of the multiple pressing elements is slidably connected to the housing. The crankshaft forms multiple crank-slider structures with the multiple connecting rods and the multiple pressing elements, and each of the multiple pressing elements extends outward from the housing.
2. The simulated massage finger based on a DC motor according to claim 1, characterized in that, The crankshaft is connected to multiple connecting rods and multiple pressing elements to form multiple staggered sliding crank-slider structures.
3. The DC motor based simulated massaging finger of claim 1, wherein, A mounting groove is provided on one side of the housing, and the drive device is housed in the mounting groove.
4. The DC motor-based simulated massaging finger of claim 1, wherein, A rotating support boss is provided on one side of the housing, and one end of the crankshaft is inserted into the rotating support boss and rotatably connected to the rotating support boss.
5. The direct current motor based simulated massaging finger according to claim 4, wherein, The rotating support boss is provided with a rotating groove, and one end of the crankshaft is provided with a rotating column. The rotating column is housed in the rotating groove and is slidably connected to the groove wall.
6. The direct current motor based simulated massaging finger of claim 5, wherein, The rotating support boss is equipped with a bearing, which is located on one side of the rotating groove. The rotating column passes through the bearing and is fixedly connected to the inner ring of the bearing.
7. The DC motor-based simulated massaging finger of claim 1, wherein, The crankshaft has multiple crank connection positions, which are arranged sequentially along the crankshaft direction. Each crank connection position corresponds to a connecting rod, and the crank connection position is rotatably connected to one end of the connecting rod.
8. The direct current motor based simulated massaging finger of claim 7, wherein, The adjacent crank connection positions are staggered by an angle.
9. The DC motor-based simulated massaging finger of claim 1, wherein, The housing is provided with a plurality of sliding grooves, each of which corresponds to a plurality of pressing members. A portion of each pressing member is housed in a sliding groove and is slidably connected to the groove wall.
10. The DC motor-based simulated massaging finger of claim 1, wherein, The pressing element is provided with a liquid guiding channel, which extends from one end of the pressing element to the other end of the pressing element.