Massage head eccentric rotation massager

Abstract

The massage device with eccentric rotation of massage head comprises a shell, a massage head, a first driving motor, an eccentric assembly and a plurality of eccentric guide rods; the massage head is installed on the shell, the first driving motor is installed on the shell, the eccentric assembly comprises an eccentric wheel and an eccentric shaft, the output shaft of the first driving motor is in transmission connection with the eccentric wheel, the two ends of the eccentric shaft are in transmission connection with the shell and the massage head respectively, and the two ends of the eccentric guide rod are in rotation connection with the eccentric wheel and the massage head respectively to limit the rotation of the massage head; the technical scheme of the massage device prevents the rotation of the massage head, and improves the service life and experience comfort of the device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of massage equipment, in particular to a massage head eccentric rotation massager. BACKGROUND

[0002] With the development of society, many people are in front of the computer during working hours, and long-term in the work to maintain a bad posture may cause muscle, bone and fascia injury, and serious may cause you to suffer from cervical spondylosis, periarthritis of shoulder and other diseases; and because of the long working hours, there is no time to exercise after work, and because massage can reduce the occurrence of cervical spondylosis, it can also relieve cervical spondylosis, so it is more and more popular.

[0003] And the existing massage machine, whether the massage head eccentric rotation or coaxial rotation, the massage head will produce self-rotation, and the massage head will be wound into the massage head if the self-rotation occurs, not only will cause damage to the massage machine itself, reduce the service life of the massage machine, but also may cause damage to the user, and thus reduce the user experience. SUMMARY

[0004] The main purpose of the present application is to provide a massage head eccentric rotation massage machine, which aims to prevent the massage head from rotating, improve the service life and experience comfort of the equipment.

[0005] To achieve the above purpose, the massage head eccentric rotation massage machine provided by the present application comprises:

[0006] A shell;

[0007] A massage head, which is installed on the shell;

[0008] A first driving motor installed on the shell;

[0009] An eccentric assembly comprising an eccentric wheel and an eccentric shaft, the output shaft of the first driving motor is in transmission connection with the eccentric wheel, and the two ends of the eccentric shaft are respectively in transmission connection with the eccentric wheel and the massage head; and

[0010] A plurality of eccentric guide rods, the two ends of the eccentric guide rods are respectively in rotary connection with the shell and the massage head, so as to limit the self-rotation of the massage head.

[0011] Optionally, the eccentric assembly further comprises an eccentric cover mounted on the massage head, the massage head eccentric rotating massager further comprises a PCB board and a pressure sensor, the PCB board comprises a first PCB board mounted on the shell and a second PCB board mounted on the eccentric cover, the first PCB board is electrically connected with the first driving motor, the pressure sensor is mounted on the eccentric cover and abuts against the massage head for detecting the pressure of the massage head, and the pressure sensor is electrically connected with the second PCB board, both ends of the eccentric guide rod are electrically connected with the first PCB board and the second PCB board respectively, and the eccentric guide rod is made of conductive material.

[0012] Optionally, the first elastic sheet and the second elastic sheet are detachably mounted on the first PCB board and the second PCB board respectively.

[0013] Optionally, the first elastic sheet and the second elastic sheet are detachably mounted on the first PCB board and the second PCB board respectively.

[0014] Optionally, the eccentric guide rod comprises a first rotating rod, a second rotating rod and a connecting rod, the connecting rod is provided with a first rotating hole and a second rotating hole, the first rotating hole and the second rotating hole are not located on the same axis, the first rotating rod and the second rotating rod are mounted in the first rotating hole and the second rotating hole respectively, one end of the first rotating rod away from the second rotating rod abuts against the first elastic sheet, and one end of the second rotating rod away from the first rotating rod abuts against the second elastic sheet.

[0015] Optionally, the shell is provided with a first mounting hole, the eccentric cover is provided with a second mounting hole, and the first rotating rod and the second rotating rod are rotatably mounted in the first mounting hole and the second mounting hole respectively.

[0016] Optionally, one end of the first rotating rod away from the second rotating rod is provided with a first protruding part, one end of the second rotating rod away from the first rotating rod is provided with a second protruding part, and the first protruding part and the second protruding part abut against the first elastic sheet and the second elastic sheet respectively.

[0017] Optionally, one side of the first elastic sheet towards the first rotating rod is provided with a first limiting groove, and one side of the second elastic sheet towards the second rotating rod is provided with a second limiting groove, and the first protruding part and the second protruding part are limited in the first limiting groove and the second limiting groove respectively.

[0018] Optionally, a massage pressing plate is installed on the massage head, and a pressure guiding rod is installed on the eccentric cover, the massage pressing plate and the pressure guiding rod are in abutment, and the side of the pressure guiding rod away from the massage pressing plate is in abutment with the pressure sensor, so that the pressure sensor obtains the pressure data of the massage head through the pressure guiding rod and the massage pressing plate.

[0019] Optionally, a soft rubber pad is arranged between the massage pressing plate and the pressure sensor.

[0020] The technical scheme of the present application comprises the following steps: a massage head and a first driving motor are installed on a shell, the output shaft of the first driving motor is in transmission connection with an eccentric wheel, and the two ends of an eccentric shaft are in transmission connection with the eccentric wheel and the massage head, respectively, so that the first driving motor drives the massage head to rotate eccentrically, and the skin is rubbed and processed, further, a plurality of eccentric guiding rods are installed between the shell and the massage head, the two ends of the eccentric guiding rods are in rotation connection with the shell and the massage head, respectively, the plurality of eccentric guiding rods limit the self-rotation of the massage head, and the body hair or other linear objects on the surface of the human skin are prevented from being rolled into the massage head, so that the possibility of damage of the massager is reduced, the damage to the user is reduced, and the experience comfort of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the drawings shown.

[0022] Figure 1 An exploded view of one embodiment of the massage device with the massage head rotating eccentrically according to the present application;

[0023] Figure 2 A sectional view of one embodiment of the massage device with the massage head rotating eccentrically according to the present application;

[0024] Figure 3 A partial structure schematic view of one embodiment of the massage device with the massage head rotating eccentrically according to the present application;

[0025] Figure 4 A structure schematic view of the eccentric guiding rod in one embodiment of the massage device with the massage head rotating eccentrically according to the present application;

[0026] Figure 5 A structure schematic view of the eccentric wheel and the telescopic tube in one embodiment of the massage device with the massage head rotating eccentrically according to the present application;

[0027] Figure 6 Figure 3 is a structural schematic view of an embodiment of the massage head eccentric rotation massage device of the present application.

[0028] Brief Description of the Drawings

[0029] Reference Name Reference Name 11 Housing 43 Limiting post 111 Upper housing 44 Push rod 112 Lower housing 51 Eccentric wheel 21 Massage head 511 Second limiting slot 22 Massage pressing plate 52 Eccentric shaft 23 Pressure guide rod 53 Eccentric cover 24 Pressure sensor 61 Eccentric guide rod 25 Soft rubber pad 611 First rotating rod 31 First driving motor 612 Second rotating rod 32 First telescopic tube 6121 Second protruding part 321 First limiting slot 613 Connecting rod 33 Second telescopic tube 71 First PCB board 331 First limiting protruding part 72 Second PCB board 332 Second limiting protruding part 73 Third PCB board 41 Second driving motor 74 Flat cable 42 Lead screw

[0030] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directionality indications also change accordingly.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms “connection”, “fixation”, etc. should be understood in a broad sense, for example, “fixation” can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In addition, the description involving “first”, “second”, etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, “and / or” throughout the text includes three solutions, for example, A and / or B includes A technical solution, B technical solution, and A and B simultaneously meet the technical solution; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0035] ReferenceFigures 1 to 3 The massage head 21 eccentric rotating massage device comprises:

[0036] The shell;

[0037] The massage head 21, the massage head 21 is installed on the shell;

[0038] The first drive motor 31 is installed on the shell;

[0039] The eccentric assembly comprises an eccentric wheel 51 and an eccentric shaft 52, the output shaft of the first drive motor 31 is in transmission connection with the eccentric wheel 51, and the two ends of the eccentric shaft 52 are in transmission connection with the eccentric wheel 51 and the massage head 21 respectively; and

[0040] A plurality of eccentric guide rods 61, the two ends of the eccentric guide rod 61 are in rotation connection with the shell and the massage head 21 respectively, so as to limit the rotation of the massage head 21.

[0041] The technical scheme of the present application comprises the following steps: installing the massage head 21 and the first drive motor 31 on the shell, the output shaft of the first drive motor 31 is in transmission connection with the eccentric wheel 51, and the two ends of the eccentric shaft 52 are in transmission connection with the eccentric wheel 51 and the massage head 21 respectively, so that the first drive motor 31 drives the massage head 21 to rotate eccentrically, and then the skin is rubbed and treated, further, a plurality of eccentric guide rods 61 are installed between the shell and the massage head 21, the two ends of the eccentric guide rod 61 are in rotation connection with the shell and the massage head 21 respectively, the plurality of eccentric guide rods 61 limit the rotation of the massage head 21, and then the body hair or other linear objects on the surface of the human skin are prevented from being rolled into the massage head 21, so that the possibility of damage to the massage device is reduced, the damage to the user is also reduced, and the experience comfort of the user is improved.

[0042] Preferably, the eccentric assembly further comprises an eccentric cover 53 installed on the massage head 21, the massage head 21 eccentric rotating massage device further comprises a PCB board and a pressure sensor 24, the PCB board comprises a first PCB board 71 installed on the shell and a second PCB board 72 installed on the eccentric cover 53, the first PCB board 71 is in electrical connection with the first drive motor 31, the pressure sensor 24 is installed on the eccentric cover 53 and abuts against the massage head 21, is used for detecting the pressure of the massage head 21, and the pressure sensor 24 is in electrical connection with the second PCB board 72, the two ends of the eccentric guide rod 61 are in electrical connection with the first PCB board 71 and the second PCB board 72 respectively, and the material of the eccentric guide rod 61 is a conductive material.

[0043] It can be understood that the pressure at the massage head 21 can be detected in real time by arranging the pressure sensor 24. If the pressure on the massage head 21 is too large, the skin is easily damaged or the user's discomfort is increased. If the pressure of the massage head 21 is too small, the pressing force of the massage head 21 is small, and the predetermined massage effect cannot be achieved, and the user's experience is reduced. Therefore, by arranging the pressure sensor 24 to be electrically connected with the circuit board, the first driving motor 31 is controlled. If the pressure value is too small, the first driving motor 31 is controlled to reduce the rubbing force of the massage head 21 to reduce the pressure. If the pressure value is too large, the first driving motor 31 is controlled to increase the rubbing force of the massage head 21 to increase the pressing force. Thus, the pressure value of the massage head 21 is always controlled within a predetermined range, thereby improving the user's experience.

[0044] Further, the second PCB board 72 is arranged to receive the pressure data detected by the pressure sensor 24. Since the second PCB board 72 is installed on the eccentric cover 53, and the first PCB board 71 is installed on the shell, the first PCB board 71 and the second PCB board 72 will rotate relative to each other. Therefore, if signal connection is to be achieved between the two, there are two ways. One is through wireless transmission, that is, corresponding signal transmitting and receiving devices are installed on the first PCB board 71 and the second PCB board 72 to realize exchange of data information. However, wireless transmission has the possibility of interference, and the unit cost is high and easy to damage, thereby reducing the user's experience. The other is wired transmission. Therefore, in the embodiment, the eccentric guide rod 61 is made of conductive material, so that the eccentric guide rod 61 can not only prevent the massage head 21 from rotating, but also connect the circuit and signal between the first PCB board 71 and the second PCB board 72. Thus, the eccentric guide rod 61 can simultaneously play two roles, thereby reducing the number of parts of the massager and reducing the size and cost of the massager.

[0045] Referring to Figure 3 and Figure 4 , specifically, further comprising a first elastic sheet and a second elastic sheet, the first elastic sheet is installed on the first PCB board 71 and electrically connected with the first PCB board 71, the second elastic sheet is installed on the second PCB board 72 and electrically connected with the second PCB board 72, and the two ends of the eccentric guide rod 61 respectively abut against the first elastic sheet and the second elastic sheet.

[0046] Generally, the PCB board is a precision device. Therefore, if the two ends of the eccentric guide rod 61 are directly connected with the first PCB board 71 and the second PCB board 72, the PCB board is easily damaged or other errors occur, thereby causing damage to the first PCB board 71 and the second PCB board 72. Therefore, the first elastic sheet and the second elastic sheet are arranged to connect the first PCB board 71 and the second PCB board 72.

[0047] In the embodiment, the first elastic sheet and the second elastic sheet are respectively detachably mounted on the first PCB 71 and the second PCB 72. It can be understood that after long time use, the eccentric guide rod can cause the first elastic sheet and / or the second elastic sheet to deform, thereby reducing the electric conduction effect between the eccentric guide rod and the first elastic sheet and the second elastic sheet. Therefore, by setting the first elastic sheet and the second elastic sheet to be detachably connected, the first elastic sheet and the second elastic sheet can be replaced, thereby maintaining the normal operation of the massager and improving the service life of the massager.

[0048] Further, buckle structures can be provided on the first elastic sheet, the second elastic sheet, the first PCB 71 and the second PCB 72, and the first elastic sheet and the second elastic sheet are respectively buckled and connected to the first PCB 71 and the second PCB 72. Of course, threaded holes can also be provided, so that the first elastic sheet and the second elastic sheet are respectively screwed to the first PCB 71 and the second PCB 72.

[0049] It can be understood that the material of the first elastic sheet and / or the second elastic sheet is copper. Compared with silver, copper has relatively good electric conduction performance and is relatively cheap, and the material is relatively hard. Of course, in other embodiments, aluminum material or other alloy materials can also be used, as long as the electric conduction performance is good.

[0050] Specifically, the eccentric guide rod 61 includes a first rotating rod 611, a second rotating rod 612 and a connecting rod 613. The connecting rod 613 is provided with a first rotating hole and a second rotating hole, and the first rotating hole and the second rotating hole are not located on the same axis. The first rotating rod 611 and the second rotating rod 612 are respectively mounted in the first rotating hole and the second rotating hole. One end of the first rotating rod 611 away from the second rotating rod 612 abuts against the first elastic sheet, and one end of the second rotating rod 612 away from the first rotating rod 611 abuts against the second elastic sheet. The first rotating rod 611 and the second rotating rod 612 are respectively fixed in the first rotating hole and the second rotating hole and rotatably abut against the first elastic sheet and the second elastic sheet.

[0051] Further, the shell is provided with a first mounting hole, and the eccentric cover 53 is provided with a second mounting hole. The first rotating rod 611 and the second rotating rod 612 are respectively rotatably mounted in the first mounting hole and the second mounting hole. The first mounting hole and the second mounting hole increase the stability of the eccentric guide rod 61 during operation, thereby improving the stability of the massager.

[0052] In the embodiment, the first rotating rod 611 is provided with a first protruding part at one end away from the second rotating rod 612, and the second rotating rod 612 is provided with a second protruding part 6121 at one end away from the first rotating rod 611. The first protruding part and the second protruding part 6121 respectively abut against the first elastic sheet and the second elastic sheet. The first protruding part and the second protruding part 6121 are arranged to enable the first rotating rod 611 and the second rotating rod 612 to respectively abut against the first elastic sheet and the second elastic sheet during rotation of the rotating pipe, so as to realize electrical connection between the first PCB board 71 and the second PCB board 72, reduce the possibility of poor contact due to no abutment between the first rotating rod 611 and the first protruding part during movement, and further improve the stability of information transmission.

[0053] Of course, in another embodiment, the first elastic sheet is provided with a first limiting groove 321 on one side facing the first rotating rod 611, and the second elastic sheet is provided with a second limiting groove 511 on one side facing the second rotating rod 612. The first protruding part and the second protruding part 6121 are respectively limited in the first limiting groove 321 and the second limiting groove 511. The first limiting groove 321 and the second limiting groove 511 are arranged to further limit the deviation of the first rotating rod 611 and the second rotating rod 612. The depth of the first limiting groove 321 and the second limiting groove 511 should be less than or equal to the depth of the first protruding part and the second protruding part 6121, so that the first rotating rod 611 and the second rotating rod 612 respectively abut against the first elastic sheet and the second elastic sheet.

[0054] Referring to Figure 1 In the embodiment, the massager further comprises a massage pressing plate 22 and a pressure guiding rod 23. The massage pressing plate 22 is installed on the massage head 21, and the pressure guiding rod 23 is installed on the eccentric cover 53. The massage pressing plate 22 abuts against the pressure guiding rod 23. One side of the pressure guiding rod 23 away from the massage pressing plate 22 abuts against the pressure sensor 24. The pressure sensor 24 obtains pressure data of the massage head 21 through the pressure guiding rod 23 and the massage pressing plate 22.

[0055] It can be understood that the massage pressing plate 22 and the pressure guiding rod 23 can enable the pressure of any position where the massage head 21 contacts the skin to be transmitted to the pressure sensor 24, thereby greatly increasing the effect of the pressure sensor 24 and improving the effectiveness of detection of the pressure sensor 24.

[0056] In the embodiment, the massager further comprises a soft rubber pad 25 clamped between the massage pressing plate 22 and the pressure sensor 24. The soft rubber pad 25 is arranged to reduce direct contact between the massage pressing plate 22 and the pressure sensor 24, thereby reducing wear and increasing the service life of the pressure sensor 24.

[0057] In the embodiment, the massage head 21 is made of rubber or silicone, and flexible materials such as rubber and silicone can greatly reduce the damage of the massage head 21 to the skin when pressing and / or rubbing the skin, and can make the human body more comfortable when massaging the skin. Of course, in other embodiments, the massage head 21 can also be made of other composite flexible materials.

[0058] Further, in order to increase the function of the massager and improve the user experience, the massager further comprises a telescopic member, a second driving member and a push rod 44, the eccentric wheel 51 is rotatably installed on the push rod 44, the second driving member is installed on the shell, the output shaft of the first driving motor 31 is in transmission connection with the eccentric wheel 51 through the telescopic member, and the two ends of the eccentric guide rod 61 are rotatably connected with the push rod 44 and the massage head 21 respectively. The second driving member is in transmission connection with the push rod 44, and the second driving member drives the push rod 44 to move forward or backward to drive the eccentric wheel 51, the eccentric cover 53 and the massage head 21 to move forward or backward, thereby realizing the pressing effect on the skin. When the first driving member and the second driving motor 41 operate simultaneously, the rubbing and pressing effect on the skin is realized. It should be noted that the pressure sensor 24 can detect the pressure when the first driving motor 31 rubs and presses, and can also detect the pressure when the second driving member presses.

[0059] Therefore, in the embodiment, the PCB further comprises a third PCB 73, and the second PCB 72 is installed on the push rod 44 and moves forward or backward with the push rod 44. The third PCB 73 is installed on the shell and is in electrical connection with the second PCB 72 through the wire 74. The wire 74 is long, so that the first driving member driving the push rod 44 to move forward or backward will not affect the wire 74.

[0060] It can be understood that the data information or current is transmitted between the first PCB 71, the second PCB 72 and the third PCB 73, so as to control the first driving member and the second driving motor 41, thereby adjusting the pressing degree and mode in time, and improving the user experience. Of course, buttons in electrical connection with the third PCB 73 can be arranged on the shell, and the mode of massage and the switch of the massager can be manually adjusted through the buttons. Of course, other electronic devices such as mobile phones and controllers can also be used for centralized control.

[0061] In the embodiment, the second driving member is a second driving motor 41, the massage head 21 eccentric rotating massage device further comprises a screw rod 42 and a second speed reducer, the shell is provided with a first limiting part, the push rod 44 is provided with a second limiting part, the push rod 44 is in threaded connection with the screw rod 42, the output shaft of the second driving motor 41 is in transmission connection with one end of the screw rod 42 through the second speed reducer, the second driving motor 41 drives the screw rod 42 to rotate, and the first limiting part and the second limiting part are matched to drive the push rod 44 and the massage member to advance or retreat.

[0062] The screw rod 42 has simple transmission structure, easy processing, low cost, large axial transmission force and high positioning accuracy; the second speed reducer can increase the output torque of the second driving motor 41, and further increase the load of the screw rod 42; the first speed reducer can be installed on the first driving motor 31 to increase the output torque of the first driving motor 31; of course, in other embodiments, the second driving member can also be a pneumatic cylinder, the output shaft of the pneumatic cylinder is directly in transmission connection with the push rod 44 to drive the push rod 44 to advance or retreat.

[0063] Further, in order to make the push rod 44 move linearly and stably, in the embodiment, the first limiting part is a limiting column 43 fixed to the shell, the second limiting part is a limiting hole provided on the push rod 44, when the second driving motor 41 drives the screw rod 42 to rotate, the push rod 44 moves along the length direction of the limiting column 43 through the cooperation of the limiting column 43 and the limiting hole to drive the massage member to advance or retreat; of course, in other embodiments, a limiting protrusion can be arranged on one of the shell and the push rod 44, and a limiting groove can be arranged on the other one, the rotation of the screw rod 42 is converted into linear motion of the push rod 44 through the cooperation of the limiting protrusion and the limiting groove.

[0064] Further, when the second driving motor 41 drives the push rod 44 to advance or retreat, the telescopic member is driven to extend or retract, and the first driving motor 31 and the second driving motor 41 can operate simultaneously, the first driving motor 31 drives the telescopic member to rotate, and further drives the eccentric wheel 51 to rotate.

[0065] Reference Figure 5, specifically, the telescopic part is a telescopic tube, the telescopic tube comprises a first telescopic tube 32 and a second telescopic tube 33, an output shaft of the first driving motor 31 is fixed to an inner wall surface of the first telescopic tube 32, an outer wall surface of the first telescopic tube 32 is provided with a first limiting groove 321, an inner wall surface and an outer wall surface of the second telescopic tube 33 are respectively provided with a first limiting protrusion 331 and a second limiting protrusion 332, an inner wall surface of the eccentric wheel 51 is provided with a second limiting groove 511, the first telescopic tube 32 is limited to be telescopic in the second telescopic tube 33 through cooperation of the first limiting groove 321 and the first limiting protrusion 331, and the second telescopic tube 33 is limited to be telescopic in the eccentric wheel 51 through cooperation of the second limiting groove 511 and the second limiting protrusion 332.

[0066] It can be understood that the lengths of the first telescopic tube 32 and the second telescopic tube 33 can be set according to the required telescopic length, and the corresponding telescopic length can also be specified by setting the lengths of the first limiting protrusion 331, the first limiting groove 321, the second limiting protrusion 332 and the second limiting groove 511, and the cooperation of the first limiting protrusion 331 and the first limiting groove 321 and the cooperation of the second limiting protrusion 332 and the second limiting groove 511 can make the telescopic operation more stable; of course, the second telescopic tube 33, the third telescopic tube and the like can also be provided.

[0067] Further, the shell comprises an upper shell 111 and a lower shell 112 connected with each other, the first driving motor 31 and the second driving motor 41 are both mounted on the lower shell 112, the upper shell 111 is sleeved on the outer side of the push rod 44, the push rod 44 can move in the axial direction relative to the upper shell 111, both ends of the limiting rod are fixed on the upper shell 111 and the lower shell 112 respectively, and the push rod 44 is movably connected with the limiting rod through the limiting hole.

[0068] The above only describes optional embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made according to the contents of the specification and drawings of the present application, or direct / indirect application in other related technical fields under the inventive concept of the present application is included in the patent protection scope of the present application.

Claims

1. A massager with an eccentrically rotating massage head, characterized in that, include: case; A massage head is mounted on the housing; A first drive motor is mounted on the housing; An eccentric assembly includes an eccentric wheel and an eccentric shaft. The output shaft of the first drive motor is connected to the eccentric wheel, and both ends of the eccentric shaft are connected to the eccentric wheel and the massage head, respectively. Multiple eccentric guide rods, with both ends of the eccentric guide rods being rotatably connected to the housing and the massage head, respectively, to restrict the rotation of the massage head; The eccentric assembly further includes an eccentric cover mounted on the massage head. The massager with the eccentrically rotating massage head also includes a PCB board and a pressure sensor. The PCB board includes a first PCB board mounted on the housing and a second PCB board mounted on the eccentric cover. The first PCB board is electrically connected to the first drive motor. The pressure sensor is mounted on the eccentric cover and abuts against the massage head for detecting the pressure of the massage head. The pressure sensor is also electrically connected to the second PCB board. The two ends of the eccentric guide rod are electrically connected to the first PCB board and the second PCB board, respectively. It also includes a first spring and a second spring. The first spring is mounted on the first PCB board and electrically connected to the first PCB board. The second spring is mounted on the second PCB board and electrically connected to the second PCB board. The two ends of the eccentric guide rod abut against the first spring and the second spring, respectively. The eccentric guide rod includes a first rotating rod, a second rotating rod, and a connecting rod. The connecting rod is provided with a first rotating hole and a second rotating hole. The first rotating hole and the second rotating hole are not located on the same axis. The first rotating rod and the second rotating rod are respectively installed in the first rotating hole and the second rotating hole. The end of the first rotating rod away from the second rotating rod abuts against the first spring piece, and the end of the second rotating rod away from the first rotating rod abuts against the second spring piece.

2. The massager with an eccentrically rotating massage head as described in claim 1, characterized in that, The eccentric guide rod is made of a conductive material.

3. The massager with an eccentrically rotating massage head as described in claim 1, characterized in that, The first spring and the second spring are detachably mounted on the first PCB board and the second PCB board, respectively.

4. The massager with an eccentrically rotating massage head as described in claim 1, characterized in that, The housing is provided with a first mounting hole, and the eccentric cover is provided with a second mounting hole. The first rotating rod and the second rotating rod are respectively rotatably installed in the first mounting hole and the second mounting hole.

5. The massager with an eccentrically rotating massage head as described in claim 1, characterized in that, The first rotating rod has a first protrusion at the end away from the second rotating rod, and the second rotating rod has a second protrusion at the end away from the first rotating rod. The first protrusion and the second protrusion abut against the first spring and the second spring, respectively.

6. The massager with an eccentrically rotating massage head as described in claim 5, characterized in that, The first spring sheet has a first limiting groove on the side facing the first rotating rod, and the second spring sheet has a second limiting groove on the side facing the second rotating rod. The first protrusion and the second protrusion are respectively limited within the first limiting groove and the second limiting groove.

7. The massager with an eccentrically rotating massage head as described in claim 2, characterized in that, It also includes a massage pressure plate and a pressure guide rod. The massage pressure plate is installed on the massage head, and the pressure guide rod is installed on the eccentric cover. The massage pressure plate abuts against the pressure guide rod, and the side of the pressure guide rod away from the massage pressure plate abuts against the pressure sensor. The pressure sensor obtains the pressure data of the massage head through the pressure guide rod and the massage pressure plate.

8. The massager with an eccentrically rotating massage head as described in claim 7, characterized in that, It also includes a soft rubber pad, which is sandwiched between the massage pressure plate and the pressure sensor.

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