A human body compression device that simulates human hand pressure.

Abstract

A human body pressing device that simulates human hand pressing belongs to the field of massage devices. Its pressing head driving component includes a rotating driving component, a rotating body, a rotating rod, and a self-rotation angle limiting device; the rotating driving component and the rotating body are connected by a transmission, and the rotation center line of the rotating driving component and the rotation center line of the rotating body are parallel to the longitudinal rotation center line of the rotating rod; the self-rotation angle limiting device and the rotating rod are eccentrically arranged on the rotating body; the output shaft of the self-rotation angle limiting device is connected to the rotating rod; it is used to provide the rotating rod with power to rotate around its longitudinal rotation center line and limit the rotation angle range of the rotating rod; the pressing head is arranged at the other end of the rotating rod. By making the rotating rod perform a surrounding eccentric rotation and a self-selected rotation motion with a limited rotation angle around the rotation center of the rotating body, and through the contact between the pressing head and the massaged object, a pressing mode like a human hand is simulated.

Description

Technical Field

[0001] The invention belongs to the field of health care massage devices, and in particular relates to a pressing massage device for simulating hand pressing. Background Art

[0002] When the human body feels tired, pressing and massaging can relieve fatigue and relax the body, so electric massage devices of various structural forms have appeared on the market.

[0003] Common electric massage devices on the market usually use a vertically vibrating pressing head to vertically vibrate or strike a certain part of the human body to simulate the massage technique of a masseur and perform a striking massage on certain parts of the human body.

[0004] However, the vibration frequency of the pressing head of this type of electric massage device is high, and the speed of the pressing head changes dramatically when pressing, especially there is a "sudden change" phenomenon where the speed drops to zero, which has a large impact force on the human body in the positive direction (referring to the "positive" direction relative to the human body surface), which can easily cause harm to the human body.

[0005] In addition, the pressing head of the existing electric massage device can only perform vibration massage, and cannot achieve "rotation" within a certain angle and mobile massage around a certain trajectory. It is difficult to truly imitate the hand movements, pressing and massage techniques of a masseur during massage.

[0006] The Chinese invention patent with the authorization announcement date of July 17, 2018 and the authorization announcement number of CN 105167972 B discloses a gyratory kneading massage mechanism and its handheld massager and abdominal massage device, which utilizes a planetary gear train as the transmission mechanism of the gyratory kneading massage device, and the massage body is fixedly connected to the planetary gears respectively, so that the massage body can perform gyratory rotation and control itself to not change the rotation angle during the gyratory motion, thereby achieving the gyratory kneading massage requirements. However, the technical solution is to utilize the planetary gear train structure as the transmission mechanism of the gyratory kneading massage device to achieve the gyratory kneading massage requirements, and the planetary gear train structure occupies a large space, resulting in the circumferential diameter of the massage head during the circular motion must be greater than a certain value (must be greater than the "revolution" diameter of the planetary gear), and cannot be smaller, and is limited to abdominal massage of people. Moreover, the use of the planetary gear train structure will result in a complex overall structure of the massage head, which occupies a large space volume, and increases the overall manufacturing cost of the massage device.

[0007] The Chinese invention patent application with the publication date of September 28, 2018 and the publication number of CN 108578189 A discloses a "crank rocker type rotary kneading massage mechanism", which uses a crank rocker transmission to achieve rotary kneading massage. The technical solution consists of a crank, a rocker, and a connecting rod hinged with the crank and the rocker in the same plane to form a crank rocker transmission mechanism. The massage body is fixedly installed on the connecting rod in the plane perpendicular to the transmission mechanism. The center line of the massage body is installed to coincide with the center line of the crank output shaft. When working, the massage body performs uniform circular motion driven by the crank, and the body itself swings slightly with the connecting rod. The rotation angle of the body is controlled so as not to excessively involve the surrounding skin, and the requirements of manual rotary kneading massage can be met. However, the transmission mechanism in this technical solution adopts a coplanar assembly structure. When massaging, the massage head is subjected to a reaction force, which will cause serious plane friction and easily cause obstruction between individual components. At the same time, since the massage head is subjected to a reaction force during massage, a torque will be generated on the crank, connecting rod and rocker. As the massage time increases, the crank, connecting rod and rocker will bend to a certain extent, affecting the service life of the massage mechanism. In addition, this massage mechanism has high requirements on the installation accuracy of each component and has a complex structure. Finally, the sizes of the crank, connecting rod and rocker of this massage mechanism have been determined, and the rotation angle of the massage body itself only swings slightly and cannot be adjusted according to the needs of massage. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a human body pressing device that simulates human hand pressing. The device simulates the swing of human hands during pressing or massaging by driving a pressing head to make eccentric circular motion, so that the pressing head can simulate a pressing method similar to the rotating kneading of human hands. This pressing method can repeatedly and fully knead a small area that needs pressing and massaging, and can simultaneously meet the requirements of good uniformity of pressing and massaging, small impact force, and not easy to twist fabrics or human skin, and meet the requirements of different pressing and massage intensities.

[0009] The technical solution of the present invention is to provide a human body pressing device for simulating human hand pressing, including a pressing head driving assembly arranged in a device housing; the characteristics are:

[0010] The pressing head driving assembly at least comprises a rotating driving assembly, a rotating body, a rotating rod, a rotation angle limiting device and a pressing head;

[0011] The rotary drive assembly and the rotating body are connected by a kinematic pair, and the rotation center line of the rotary drive assembly is arranged parallel to the rotation center line of the rotating body;

[0012] The rotating rod is arranged on the rotating body;

[0013] The output shaft of the rotation angle limiting device is connected to one end of the rotating rod;

[0014] The rotation angle limiting device and the rotating rod are eccentrically arranged on the rotating body;

[0015] The rotation angle limiting device is used to provide the rotating rod with power to rotate around its longitudinal rotation center line and limit the rotation angle range of the rotating rod;

[0016] The pressing head is arranged at the other end of the rotating rod;

[0017] When the rotating body rotates around the rotation center line of the rotating body under the drive of the rotation drive assembly, the rotating rod, driven by the rotating body, performs a circular motion around the rotation center line of the rotating body;

[0018] Alternatively, relative to the rotation centerline of the rotating body, the rotating rod rotates eccentrically around the rotation centerline of the rotating body;

[0019] At the same time, under the action of the rotation angle limiting device, the rotating rod performs a rotational motion with a limited rotation angle around its longitudinal rotation center line;

[0020] The human body pressing device simulating human hand pressing simulates a self-rotating pressing method like a human hand by causing the rotating rod to perform a surrounding eccentric rotation and a rotational motion with a limited angle around the rotation center of the rotating body, and simulates a pressing mode like a human hand through the contact between the pressing head and the massaged object.

[0021] Specifically, the rotary drive assembly includes a second motor, a conveyor belt and a pulley, and the pulley is arranged on the driving shaft of the second motor.

[0022] The device for limiting the rotation angle comprises a first motor and a motor control board. The motor control board is fixed on the rotating body, and the motor control board is electrically connected to the first motor.

[0023] The output shaft of the first motor is connected to one end of the rotating rod.

[0024] Specifically, the output shaft of the first motor is connected to one end of the rotating rod through a flexible shaft, and the axial elastic connection between the output shaft of the first motor and the rotating rod is used to adapt to the change of the up and down position of the pressing head when the shape of the pressed surface is uneven.

[0025] The self-rotation angle limiting device limits the rotation angle range of the rotating rod, thereby simulating the swing of the human hand when the human hand is pressing or massaging.

[0026] Specifically, the rotary drive assembly is fixed in the housing of the device, the rotating body is rotatably arranged in the housing of the device, the rotating rod is arranged through the housing of the device, and the pressing head is arranged outside the housing of the device; the longitudinal rotation center line of the rotating rod is arranged parallel to the rotation center line of the rotating body.

[0027] Furthermore, the kinematic pair includes a belt drive connection, a chain drive connection, a worm-wheel drive connection or a gear drive connection.

[0028] Furthermore, the rotation angle limiting device controls the rotation angle range of the rotating rod through a mechanical limit switch, a photoelectric limit switch or a Hall sensor element.

[0029] Compared with the prior art, the advantages of the present invention are:

[0030] 1. Since the rotating rod is eccentrically arranged relative to the rotation center of the rotating body, when the rotating body rotates under the drive of the rotating drive assembly, the rotating rod can perform a surrounding eccentric motion relative to the rotation center of the rotating body;

[0031] 2. The rotation angle of the rotating rod is limited by setting a rotation angle limiting device, so that the rotating rod can achieve a swinging back and forth rotation similar to the automobile wiper motor within a certain angle range;

[0032] 3. Through the combined motion mode of the rotating rod and the rotating body, the self-rotating pressing method like a human hand is simulated, and through the contact between the pressing head and the massaged object, the pressing mode like a human hand can be simulated;

[0033] 4. Since the rotation angle of the pressing head is less than 360 degrees, it can avoid the entanglement of fabric or human skin during rotation and pressing, which may cause the pressing head to be blocked and massage discomfort;

[0034] 5. By changing the spacing or distance between the rotating rod and the rotation center of the rotating body, a circular motion massage with an infinitesimal diameter can be achieved, which can be used for massage of a smaller area and is not limited to the abdomen of a person; it can achieve massage with a larger swing angle and massage with a micro swing angle, which is closer to various kneading methods of human hands;

[0035] 6. The pressing head and the rotating rod are connected axially elastically, which can adapt to the changes in the upper and lower position size of the pressing head when the pressed surface is uneven in shape, bringing better massage experience and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the movements of the masseur's fingers during manual massage;

[0037] Figure 2 It is a schematic diagram of the mechanical structure of the human body pressing device of the present invention;

[0038] Figure 3 It is a schematic diagram of the action process of the human body pressing device of the present invention.

[0039] In the figure, a is the trajectory of eccentric circular motion, b is the center of rotation, and c is the direction of rotation;

[0040] 1 is a rotating body, 2 is a first motor, 3 is a rotating rod, 4 is a pressing head, 5 is a motor control board, 6 is a conveyor belt, 7 is a pulley, 8 is a second motor, and 9 is a motion track of the pressing head. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] As we all know, kneading massage is the most commonly used and most effective massage method with a long history. Manual kneading is to press the fingertips or the palm of the hand on the applied area, and stick to the skin to drive the subcutaneous tissue in that area, making gentle and gentle rotational rotation, and producing the effect of kneading and rubbing the deep subcutaneous tissue, and each force point is subjected to continuous and uniform kneading force. At the same time, the rotation angle of the fingertips or palm itself does not change with the rotation movement or only swings slightly, and returns to the original state after a circle, without excessively involving the surrounding skin.

[0043] When performing manual massage, the masseur's fingers perform massage movements such as Figure 1 as shown in .

[0044] Specifically, during manual massage, the masseur's fingers make eccentric circular motion (a is used to represent the trajectory of the eccentric circular motion in the figure). At the same time, the fingers also make rotational motion with the rotational motion center b (c is used to represent the rotational motion direction in the figure). In this way, a combined pressing method of the masseur's hand swinging and hand rotation and kneading is achieved.

[0045] Figure 2 The technical solution of the present invention provides a human body pressing device simulating human hand pressing, including a pressing head driving assembly arranged in a device housing; the invention lies in:

[0046] The pressing head driving assembly at least comprises a rotating driving assembly, a rotating body 1, a rotating rod 3, a rotation angle limiting device and a pressing head 4;

[0047] The rotary drive assembly and the rotating body are connected by a transmission, and the rotation center line of the rotary drive assembly is arranged parallel to the rotation center line of the rotating body;

[0048] The rotating rod is arranged on the rotating body; the longitudinal rotation center line of the rotating rod is arranged parallel to the rotation center line of the rotating body;

[0049] The output shaft of the rotation angle limiting device is connected to one end of the rotating rod.

[0050] As can be seen from the figure, the rotation angle limiting device and the rotating rod are eccentrically arranged on the rotating body.

[0051] In the technical solution, the rotation angle limiting device is used to provide the rotating rod with power to rotate around its longitudinal rotation center line and to limit the rotation angle range of the rotating rod.

[0052] The pressing head is arranged at the other end of the rotating rod.

[0053] When the rotating body rotates around the rotation center line of the rotating body under the drive of the rotation drive assembly, the rotating rod, driven by the rotating body, performs a circumferential motion around the rotation center line of the rotating body; or, relative to the rotation center line of the rotating body, the rotating rod performs an eccentric rotation around the rotation center line of the rotating body.

[0054] In this technical solution, the compound motion relationship between the rotating body and the rotating rod is similar to the compound motion relationship of the earth revolving around the sun and rotating around its own axis. The rotating rod "revolves" around the rotation center of the rotating body, forming a circular motion mode similar to "eccentricity", and the rotating rod itself also "rotates" around its longitudinal rotation center line; further, the angle range of this rotation is also limited by the rotation angle limiting device, and the final manifestation is a reciprocating rotation with a limited rotation angle, which can also be called "swing".

[0055] This technical solution simulates a self-rotating pressing method like a human hand by making the rotating rod perform a circular eccentric rotation and a rotational motion with a limited rotation angle around the rotation center of the rotating body, and simulates a pressing mode like a human hand through the contact between the pressing head and the massaged object.

[0056] Specifically, the rotary drive assembly in the present technical solution includes a second motor 8, a conveyor belt 7 and a pulley 6. Figure 2 It can be seen from the description that the pulley is arranged on the driving shaft of the second motor.

[0057] Figure 2 In the figure, an implementation of the device for limiting the rotation angle in the present technical solution is given, which includes a first motor 2 and a motor control board 5. The motor control board is fixed on the rotating body, and the motor control board is electrically connected to the first motor.

[0058] The output shaft of the first motor is connected to one end of the rotating rod.

[0059] Furthermore, the output shaft of the first motor is connected to one end of the rotating rod through a flexible shaft, and the axial elastic connection between the output shaft of the first motor and the rotating rod is used to adapt to the change of the up and down position of the pressing head when the shape of the pressed surface is uneven.

[0060] The self-rotation angle limiting device limits the rotation angle range of the rotating rod, thereby simulating the swing of the human hand when the human hand is pressing or massaging.

[0061] It should be noted that the rotation angle limiting device in the present technical solution is not limited to Figure 2 The combination mode of the motor control board plus the first motor shown in the figure may also adopt mechanical devices or electrical drive devices of other structural forms, as long as they limit and change the rotation angle range of the rotating rod, they can meet the technical requirements of the present technical solution.

[0062] Furthermore, the rotary drive assembly is fixed in the housing of the device, the rotary body is rotatably arranged in the housing of the device, the rotary rod penetrates the housing of the device, and the pressing head is arranged outside the housing of the device.

[0063] exist Figure 2 In the embodiment, the rotary drive assembly and the rotating body are connected by a kinematic pair; the kinematic pair includes a conveyor belt connection, a chain connection, a worm-wheel connection or a gear connection.

[0064] Furthermore, the rotation angle limiting device in the present technical solution realizes the control of the rotation angle range of the rotating rod when rotating through a mechanical limit switch, a photoelectric limit switch or a Hall sensor element.

[0065] Figure 3 In the figure, the motion relationship (or motion trajectory) between the rotating body and the rotating rod (or pressing head) is further displayed and described.

[0066] Figure 3 Actually Figure 2 Schematic diagram of the structure viewed from above, since only the pressing head 4 can be seen in the figure, in the following description, it is assumed that the pressing head is fixed coaxially with the rotating rod. For the convenience of description, the pressing head is used to represent the action state or rotation state of the rotating rod.

[0067] In the figure, when the rotating body 1 rotates, it drives the pressing head 4 to move along the movement trajectory 9 of the pressing head shown in the figure.

[0068] If the rotation center O1 of the rotating body 1 is taken as the center of the circle, then the movement trajectory of the pressing head relative to the rotation center O1 can be regarded as an eccentric circular motion. This movement mode, i.e., the origin and basis of the aforementioned statement "when the rotating body rotates under the drive of the rotating drive assembly, the rotating rod (driving the pressing head) can achieve a circular eccentric motion relative to the rotation center of the rotating body".

[0069] Furthermore, as shown in the figure, taking the line O1O2 between the rotation center O1 of the rotating body 1 and the rotation center O2 of the second motor 8 as a reference, take a ray O3X which is parallel to the line O1O2 and passes through the center O3 (also called the axis) of the pressing head 4 when the pressing device is in a stationary state. In the process of the pressing head 4 moving along the eccentric circular motion trajectory 9 as shown in the figure, the pressing head rotates around its own axis O3 and relative to O1O2, so that the ray O3X rotates relative to the line O1O2, generating a relative rotation angle. Among all the relative rotation angles, the largest relative rotation angle is the angle Φ (the angle area swept by the rotation of O3X relative to O1O2) from the extreme position O3X′ reached by the ray O3X relative to the line O1O2 to the other extreme position O3X″ reached by the rotation of O3X relative to O1O2, thereby realizing the back and forth rotation (also called swinging) of the pressing head within the rotation angle range of the rotating rod.

[0070] The angle Φ is limited within a certain angle range to prevent the pressing head from being entangled with clothing fabric or human skin, thereby causing the pressing head to be stuck and causing a massage discomfort.

[0071] The control to limit the angle within a certain range is accomplished by the motor control board 5 controlling the rotation of the first motor 2 .

[0072] It should be noted that the angle Φ mentioned above is not strictly limited as long as it can prevent the pressing head from twisting clothing fabric or human skin, and is usually preferably limited to between 0 and 180 degrees.

[0073] Compared with the prior art, the present technical solution does not use a crank-rocker mechanism assembled on the same plane, which will not cause plane friction and jamming, and will not affect the service life of the massage device due to the bending of the crank, connecting rod and rocker; the rotation angle of the rotating rod and the pressing head can be adjusted as needed; an axial elastic connection is used between the pressing head and the rotating rod, which can better adapt to the changes in the upper and lower position dimensions when the pressed surface is uneven in shape.

[0074] This technical solution simulates the swing of human hands during pressing or massaging, so that the pressing head can simulate a pressing method similar to the rotation and kneading of human hands. It can repeatedly and fully knead a small area that needs pressing and massaging, and can simultaneously meet the requirements of good uniformity of pressing and massaging, small impact force, and not easy to twist the fabric or human skin, and can meet the requirements of different pressing and massage intensities.

[0075] The invention can be widely used in the design and manufacturing fields of various health care massage devices.

Claims

1. A human body pressing device simulating human hand pressing, comprising a pressing head driving assembly arranged in a device housing; wherein: The pressing head driving assembly at least comprises a rotating driving assembly, a rotating body, a rotating rod, a rotation angle limiting device and a pressing head; The rotary drive assembly and the rotating body are connected by a kinematic pair, and the rotation center line of the rotary drive assembly is arranged parallel to the rotation center line of the rotating body; The rotating rod is arranged on the rotating body; The output shaft of the rotation angle limiting device is connected to one end of the rotating rod; The rotation angle limiting device and the rotating rod are eccentrically arranged on the rotating body; The rotation angle limiting device comprises a first motor and a motor control board, the motor control board is fixed on the rotating body, and the motor control board is electrically connected to the first motor; The self-rotation angle limiting device is used to provide the rotating rod with power for self-rotation around its longitudinal rotation center line, and limit the rotation angle range of the rotating rod to less than 360 degrees; The pressing head is arranged at the other end of the rotating rod; When the rotating body rotates around the rotation center line of the rotating body under the drive of the rotation drive assembly, the rotating rod, driven by the rotating body, performs a circular motion around the rotation center line of the rotating body; or, relative to the rotation center line of the rotating body, the rotating rod performs an eccentric rotation around the rotation center line of the rotating body; At the same time, under the action of the rotation angle limiting device, the rotating rod performs a rotational motion with a limited rotation angle around its longitudinal rotation center line; The human body pressing device simulating human hand pressing simulates a rotating pressing method like a human hand by causing the rotating rod to perform a surrounding eccentric rotation and a rotational motion with a limited angle around the rotation center of the rotating body, and simulates a pressing mode like a human hand through the contact between the pressing head and the massaged object.

2. The human body pressing device for simulating human hand pressing according to claim 1, characterized in that The rotary drive assembly comprises a second motor, a conveyor belt and a pulley, and the pulley is arranged on the driving shaft of the second motor.

3. The human body pressing device for simulating human hand pressing according to claim 1, characterized in that The output shaft of the first motor is connected to one end of the rotating rod.

4. The human body pressing device for simulating human hand pressing according to claim 3, characterized in that The output shaft of the first motor is connected to one end of the rotating rod through a flexible shaft, and the axial elastic connection between the output shaft of the first motor and the rotating rod is used to adapt to the change of the up and down position of the pressing head when the shape of the pressed surface is uneven.

5. The human body pressing device for simulating human hand pressing according to claim 1, characterized in that The self-rotation angle limiting device limits the rotation angle range of the rotating rod, thereby simulating the swing of the human hand when the human hand is pressing or massaging.

6. The human body pressing device for simulating human hand pressing according to claim 1, characterized in that The rotary drive assembly is fixed in the housing of the device, the rotating body is rotatably arranged in the housing of the device, the rotating rod is arranged through the housing of the device, and the pressing head is arranged outside the housing of the device; the longitudinal rotation center line of the rotating rod is arranged parallel to the rotation center line of the rotating body.

7. The human body pressing device for simulating human hand pressing according to claim 1, characterized in that The kinematic pair comprises a belt drive connection, a chain drive connection, a worm-wheel drive connection or a gear drive connection.

8. The human body pressing device for simulating human hand pressing according to claim 1, characterized in that The device for limiting the rotation angle controls the rotation angle range of the rotating rod through a mechanical limit switch, a photoelectric limit switch or a Hall sensor element.

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