Driving mechanism of reciprocating type massage device

Abstract

The utility model relates to a reciprocating type massage device, and particularly discloses a driving mechanism of the reciprocating type massage device, which comprises a driving mechanism for outputting rotary motion, a screw rod driven by the driving mechanism to rotate and a nut assembly matched with the screw rod, and the screw rod rotates to enable the screw rod to do reciprocating motion relative to the nut assembly. Through cooperation of the screw rod and the nut assembly, reciprocating motion of the rotating screw rod in the length direction of the screw rod is achieved, the reciprocating motion of the screw rod drives the massage body moving along with the screw rod to do reciprocating motion, and therefore reciprocating stimulation of the massage body on the part making contact with the human body is achieved. Compared with a crank connecting rod reciprocating mechanism in the prior art, the crank connecting rod reciprocating mechanism has the advantages that occupied space can be greatly reduced through matching of the nut assembly and the screw, transmission efficiency is high, in addition, ascending and descending of the screw in the length direction of the screw are achieved directly through matching of the screw and the nut assembly, and the service life of the crank connecting rod reciprocating mechanism is prolonged. The problem that the ascending stroke force and the descending stroke force of the crank connecting rod reciprocating mechanism are asymmetric can be effectively solved.

Description

Technical Field

[0001] The utility model relates to a reciprocating massage device, in particular to a driving mechanism of the reciprocating massage device. Background Art

[0002] Massage devices are designed to produce a series of different movements, such as vibration, rotation, propulsion, and pressing. The propulsion and pressing movements can be generated by reciprocating actions, where an element can move forward and backward in a line. Since such devices generally use electric motors capable of producing rotational motion, the reciprocating motion can be generated by mechanical elements such as cams (i.e., crank - connecting rod reciprocating mechanisms), which convert the rotational motion of the electric motor into a reciprocating motion, or a push rod is mounted on a rotating disk or wheel to drive the push rod to push and pull substantially in the reciprocating direction.

[0003] However, this existing method of providing reciprocating motion has problems such as low power utilization efficiency, a cumbersome device shape required to accommodate the necessary mechanical elements, a limited stroke length, a weak driving force for portable arrangements, and an asymmetric force in the upward and downward stroke. Summary of the Utility Model

[0004] The utility model aims to solve the technical problems existing in the above - mentioned prior art, and provides a driving mechanism for a reciprocating massage device, which not only has high transmission efficiency but also occupies a small space.

[0005] To solve the above - mentioned technical problems, the utility model provides the following technical solutions:

[0006] A driving mechanism of a reciprocating massage device according to the utility model includes a driving mechanism for outputting rotational motion, and further includes a screw rod driven by the driving mechanism to rotate and a nut assembly cooperating with the screw rod, and the screw rod rotates to make the screw rod reciprocate relative to the nut assembly.

[0007] A driving mechanism of a reciprocating massage device according to the utility model, through the cooperation of the screw rod and the nut assembly, realizes the reciprocating motion of the rotating screw rod along its own length direction. Through the reciprocating motion of the screw rod, the massage body moving with it is driven to reciprocate, so as to realize the reciprocating stimulation of the contact part between the massage body and the human body. Compared with the crank - connecting rod reciprocating mechanism in the prior art, in the utility model, through the cooperation of the nut assembly and the screw rod, the space occupation can be greatly reduced, and the transmission efficiency is high. In addition, directly through the cooperation of the screw rod and the nut assembly, the screw rod is lifted and lowered in its length direction, which can effectively avoid the problem of asymmetric force in the upward and downward stroke of the crank - connecting rod reciprocating mechanism.

[0008] Further, an external thread is provided on the outer wall of the screw, and the external thread is a double spiral groove. Part of the nut assembly is located in the double spiral groove, and when the screw rotates, the nut assembly moves continuously in the double spiral groove, prompting the screw to lift and lower.

[0009] Further, the double spiral groove includes a rising groove for driving the nut assembly to rise and a falling groove for driving the nut assembly to fall. The rising groove and the falling groove are staggered with each other, and the top end of the rising groove is communicated with the top end of the falling groove, and the bottom end of the rising groove is communicated with the bottom end of the falling groove.

[0010] Further, the nut assembly includes a guide pin and an inner sleeve. The inner sleeve is sleeved around the screw, one end of the guide pin is connected to the inner sleeve, and the other end extends into the double spiral groove on the screw.

[0011] Further, the driving mechanism of the reciprocating massage device further includes an outer sleeve. The outer sleeve surrounds the inner sleeve and rises and falls with the screw; a detection device for detecting the lifting stroke displacement of the outer sleeve is provided between the outer sleeve and the inner sleeve.

[0012] Further, a stirring shaft is provided on the screw. The stirring shaft is configured to rotate relative to the nut assembly with the screw and also reciprocate relative to the nut assembly with the screw.

[0013] Further, a massage component is connected to the free end of the stirring shaft. When the stirring shaft rotates, it prompts the massage component to swing.

[0014] Further, the stirring shaft includes a first section rod body connected to the screw and a second section rod body connected to the first section rod body. The first section rod body and the second section rod body are arranged at an angle.

[0015] Further, a torque receiving structure is further included. The torque receiving structure is connected to the screw, and the torque receiving structure is driven to rotate by the driving mechanism to allow the screw to reciprocate when rotating.

[0016] Further, a transmission shaft is further included. One end of the transmission shaft is connected to the torque receiving structure, and the other end is connected to the transmission structure. The transmission structure is also connected to the driving mechanism. The driving mechanism drives the transmission structure to operate to drive the transmission shaft to rotate, so that the transmission shaft drives the torque receiving structure to rotate. Description of the Drawings

[0017] The above and other objects, features and advantages of the present invention will become more clear through the preferred embodiments of the present invention shown in the drawings. The same reference numerals indicate the same parts in all the drawings, and the drawings are not deliberately drawn to scale in actual size, and the focus is on showing the gist of the present invention.

[0018] Figure 1 is a cross-sectional view of a reciprocating massage device according to an exemplary embodiment of the present invention.

[0019] Figure 2 is a cross-sectional view of a reciprocating massage device according to an exemplary embodiment of the present utility model.

[0020] Figure 3 is Figure 2 a cross-sectional view of the reciprocating massage device described in

[0021] Figure 4 is a view showing Figure 2 and Figure 3 of the reciprocating massage device.

[0022] Figure 5 is another cross-sectional view showing Figure 2 , 3 and the reciprocating massage device of 4.

[0023] Figure 6 is Figure 5 an enlarged view of part "A" shown in

[0024] Figure 7 a cross-sectional view of a reciprocating massage device according to an exemplary embodiment of the present utility model.

[0025] Figure 8 is Figure 7 an exploded schematic view (removing the stretchable tube 106).

[0026] Figure 9 is a schematic view of the transmission structure in different directions.

[0027] Figure 10 is a schematic view of the detachable housing and the fixed housing disassembled in different directions. Detailed implementation manners

[0028] To facilitate the understanding of the present utility model, the present will be described more comprehensively below with reference to the relevant drawings.

[0029] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated therewith, or there may be an intermediate element present at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this technology belongs. The terms used in the description of the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] An exemplary embodiment of the present invention provides a drive mechanism for a reciprocating massage device. The drive mechanism of the reciprocating massage device is arranged using various screws or guide pins and nut assemblies to generate a reciprocating motion from the unidirectional rotational motion of a rotary motor or electric motor, thereby providing the required stimulation vector in a compact and portable shape while effectively utilizing battery power.

[0032] For example, the reciprocating massage device in the present invention may include a base assembly, a top assembly, and a stretchable tube connecting the base assembly and the top assembly. A screw can be fixed to a drive mechanism (such as a rotary motor) within the base assembly, so the screw can be coupled to the base assembly and rotatably driven by the drive mechanism. The screw can extend upward into the top assembly, but the screw is not directly coupled to the top assembly. The base assembly may include a nut or guide pin coupled to the base assembly, and the nut or guide pin can engage with the screw. Thus, when the drive mechanism rotates the screw, the top assembly can be driven upward and / or downward by virtue of the cooperation of the nut / guide pin and the screw, and the stretchable tube can ensure that the top assembly remains connected to the base assembly. In this way, a reciprocating motion can be established.

[0033] The exterior of the top assembly may include a stimulation shape, so that the user of the reciprocating massage device can receive stimulation through the reciprocating motion of the top assembly relative to the base assembly. The base assembly may include a mounting means so that it can be detachably mounted on a fixed object.

[0034] The reciprocating directionality can be alternated between expansion and contraction by one of several different means. For example, the rotation of the drive mechanism can be reversed to alternate the reciprocating directionality. Additionally, a screw can be threadedly coupled with a nut, screw, or guide pin using a double helical groove (including an ascending groove and a descending groove), where the ascending groove is responsible for driving the top component away from the base component and the descending groove is responsible for driving the top component towards the base component, such that the nut, screw, or guide pin engages with the ascending groove of the screw to move the top component in the direction away from the base component until the nut, screw, or guide pin reaches the top of the screw, at which point it re-enters the descending groove, and the nut, screw, or guide pin enters the descending groove of the screw to move the top component in the direction towards the base component. When the nut, screw, or guide pin reaches the bottom of the screw, the nut, screw, or guide pin re-enters the ascending groove from the descending groove and is pushed up again.

[0035] Various other components can be included to facilitate the reciprocating motion or to add stimulating functions to the reciprocating massage device. Many of these components and their operations will be described in detail below. However, it should be understood that any combination of these different other components can be used with the basic operating method discussed above.

[0036] In the various figures, many of the same elements are shown in multiple figures but are not described again for each figure in which they appear. Thus, it can be assumed that if an element is not described in one figure, it is at least similar to the corresponding element shown and described in another figure. Similar reference numerals can represent similar elements throughout the specification and figures.

[0037] See Figure 1-2 , which is a cross-sectional view of a reciprocating massage device 100A according to an exemplary embodiment of the present utility model. The top component discussed above includes a massage body 102, and the bottom component discussed above includes a handle portion 108. The top component further includes a massage member 101, which can provide a vibrating force, for example, by including a vibration motor that can be powered from the base component through a conductive sub-component 104, which can include wires.

[0038] The base component can also include, for example, a drive mechanism 107 disposed within the handle portion 108, such as a rotary motor, which can be powered by a battery or some other power source 110, and a controller 109, which can regulate the operation of the rotary motor 107, the charging of the battery 110, and can provide various other functions. The controller 109 can include logic circuits and can also include a microprocessor, a system-on-chip, etc.

[0039] The controller can be programmed to allow the user to operate device 100 through one or more buttons provided thereon and control various operation modes, such as the activation of the massage component 101 and the start of the reciprocating motion. The controller can also utilize various elements of the network hardware to allow the operation of device 100 to be controlled via a short-range wireless connection (such as Bluetooth) or via the Internet.

[0040] The stretchable tube 106 can connect the exterior of the massage body 102 and the exterior of the handle portion 108. It is understood that the stretchable tube 106 is a soft sleeve, for example, made of silicone material. By wrapping the soft sleeve around the exterior of the massage body 102 and the handle portion 108, while enclosing the massage body 102 and the handle portion 108, the two are connected. Since the stretchable tube 106 is made of soft material, when cooperating with the reciprocating massage device to achieve the functions of telescopic stimulation and / or agitation stimulation, it will not damage the user's skin, ensuring safe use. Additionally, by integrally sealing and wrapping the handle portion 108 and the massage body 102 with the soft material, it also prevents liquid from entering the interior of the reciprocating massage device and contaminating or damaging the reciprocating massage device. Further, the stretchable tube 106 can move the massage body 102 closer to and farther from the handle portion 108, while protecting the interior of device 100 from being exposed and protecting the user from being pinched by device 100.

[0041] See Figure 1-4 , the exterior of the handle portion 108 can include various control elements, such as a first button 111A for controlling the vibration of the massage component 101 and a second button 111B for controlling the reciprocating motion. For example, the first button 111A can be used to switch the vibration mode, while the second button 111B can be used to start / stop the reciprocating motion.

[0042] See Figure 1 , the figure shows that the base assembly includes a detachable housing 117 that engages with the fixed housing 119, for example, by screws. The detachable housing 117 can be removed to expose the battery 110, the drive mechanism 107, and various other components. The reciprocating massage device 100 can also include a charging port 120, the first button 111A and the second button 111B discussed above, and a printed circuit board (PCB) 118. A wire groove 114 can be included behind the detachable housing 117 as a protective channel for wires and / or other conductive elements to extend from the drive mechanism 107 to the printed circuit board 118. These wires and / or other conductive elements can also pass through the opening 115 arranged behind the detachable housing 117. Inside the massage body 102 (not shown), a carrier member 103 and a massage component 101 can be accommodated.

[0043] Figure 2It is a cross-sectional view of a reciprocating massage device 100A according to an exemplary embodiment of the present utility model. It should be assumed that in the case where one or more elements of the reciprocating massage device are not described in detail in this figure, these elements can at least be similar to the corresponding elements described elsewhere in the present disclosure. Specifically, it includes a handle portion 108 and a massage body 102 provided on the handle portion 108. The interior of the whole formed by assembling the handle portion 108 and the massage body 102 has a cavity; a screw 124 and a nut assembly that mates with the external thread of the screw 124 are provided in the cavity; the screw 124 is connected to the massage body 102, the nut assembly is coupled to the handle portion 108, and the screw 124 is configured to drive the reciprocating motion of the massage body 102. When the screw 124 rotates, it drives the massage body 102 to reciprocate relative to the handle portion 108; through the cooperation of the screw 124 and the nut assembly, the rotating screw 124 reciprocates along its own length direction, and through the reciprocating motion of the screw 124, the massage body 102 is driven to reciprocate, thereby realizing reciprocating stimulation. Compared with the crank and connecting rod reciprocating mechanism in the prior art, in the present utility model, through the cooperation of the nut assembly and the screw 124, the space occupation can be greatly reduced, and the transmission efficiency is high. In addition, directly through the cooperation of the screw 124 and the nut assembly, the screw 124 is lifted and lowered in its length direction, which can effectively avoid the problem of asymmetric forces in the up and down strokes of the crank and connecting rod reciprocating mechanism.

[0044] Here, the screw 124 can have the same double helical groove arrangement as described above. This arrangement also includes a battery / power supply 110, a drive mechanism 107 (such as a rotary motor or an electric motor), and a controller 109 provided in the handle portion 108. However, here, the nut assembly is fixed within the handle portion because the nut assembly is fixed inside the handle portion 108 by using a fixing ring. A torque receiving structure can be used to couple the drive motor 107 to the screw 124 so that the screw 124 rotates through the rotation of the drive mechanism 107. However, here, since the nut assembly is stationary relative to the handle portion 108, when the screw rotates, the screw 124 is pulled up and down within the stationary nut assembly. Therefore, the torque receiving structure is configured to transmit the rotational force to the screw 124 while the screw 124 remains free to move up and down.

[0045] A conductive sub - assembly 104 delivers electrical power from the battery / power source 110 to a conductive sub - assembly 143 and from there to the massage member 101. A stretchable tube 106 again connects the exterior of the handle portion 108 to the exterior of the massage body 102. The screw 124 mates with a ball bearing 142 which in turn mates with the carrier member 103 such that the screw 124 can push and pull the carrier member 103 up and down without the carrier member 103 having to rotate as the screw 124 rotates. In this way, the reciprocating motion of the screw 124 can be transmitted to the carrier member 103 without the rotational motion of the screw 124 affecting the carrier member 103.

[0046] Again, referring to Figure 1-6 , the carrier member 103 cooperates with the massage body 102 such that the massage body 102 exhibits a reciprocating motion state.

[0047] Figure 3 is Figure 2 a cross - sectional view of the reciprocating massage device 100A described in. Here, the drive mechanism 107 (such as a rotary motor or electric motor) rotates the torque receiving structure 150 which in turn transmits the rotational force to the screw 124. A cylinder 149 having a hollow interior can be fixed by an annular base 151 and these elements can be fixed together relative to the handle portion. A pair of conductive scrapers 147A and 147B can cooperate with the cylinder 147 and can carry power from the battery. Each of the conductive scrapers 147A and 147B includes an arcuate contact 146 at its upper end. The arcuate contacts 146 establish electrical connections with the respective conductive strips 135A and 135B which are part of the reciprocating structure. Thus, when the conductive strips 135A and 135B exhibit a reciprocating motion, the arcuate contacts 146 of the conductive scrapers 147A and 147B scrape along the conductive strips 135A and 135B to maintain the electrical connection and deliver power to the device 100A and the massage member 101. The conductive scrapers 147A and 147B and the conductive strips 135A and 135B can each be formed of a graphite brush (e.g., a carbon brush).

[0048] Figure 1-6 In, in this embodiment, the nut assembly includes the cylinder 149, brackets 128A and 128B, guide pins 132, and a fixing ring 145 that fixes the guide pins 132 to the cylinder 149, and an annular base 151 that fixes the cylinder 149 to the handle portion 108 such that the nut assembly does not move relative to the handle portion 108.

[0049] The screw 124 is rotated by a drive mechanism 107 through a torque receiving structure 150 that allows the screw 124 to move freely up and down during rotation. The screw 124 mates with a bearing member 103 through a ball bearing 142 so that the screw can impart reciprocating motion to the bearing member 103 while the screw imparts its rotational motion to the bearing member 103.

[0050] The bearing member 103 includes an inner sleeve and an outer sleeve. The inner sleeve has an opening 156, and the outer sleeve has corresponding linear guide grooves 144 that engage with the guide projection lines 148 of the nut to provide additional stability when the bearing member 103 is pulled up and down. A pair of conductive strips 135A and 135B can be arranged along the outer surface of the inner sleeve, and a pair of conductive scraping plates 147A and 147B can protrude between the inner sleeve and the outer sleeve of the bearing member 103. The nested nature of the inner sleeve within the outer sleeve can serve to press the conductive scraping plates 147A and 147B against the conductive strips 135A and 135B, thereby forming a good electrical connection.

[0051] Figure 4 is a cross-sectional view showing Figure 2 and Figure 3 of the reciprocating massage device 100A. As can be seen from this figure, the handle portion 108 contains a battery 110, a printed circuit board 118, a housing 119, a charging port 120, buttons 111A and 111B, and a rotary motor 107. The torque receiving structure 150 transfers the rotational force from the drive mechanism 107 (such as a rotary motor or an electric motor) to the screw 124 while allowing the screw 124 to move freely up and down. The screw 124 has double helical grooves 131. The stretchable tube 106 connects the exterior of the handle portion 108 to the massage body 102. The cylinder 149 secures the guide pin 132, and the nut assembly also includes a pair of brackets 128A and 128B. The upper cover 129 engages the guide pin 132 with the cylinder 149. The bearing member includes an inner sleeve 136 and an outer sleeve 126. The ball bearing 142 mates the screw 124 with the bearing member (including sleeves 126 and 136) so that the screw 124 can rotate freely. The bracket 127 mates with the bearing member and includes a chamber 139 for wires to pass from the conductive sub-assembly to the vibration motor 137 while passing through the first hole 138 of the housing 125.

[0052] Figure 5 is another cross-sectional view showing Figure 2 、 3 and 4 of the reciprocating massage device 100A. As can be seen from this figure, in Figure 6 there is a section "A" that is enlarged. Thus, Figure 6 is Figure 5An enlarged view of part "A" shown in the figure. According to this figure, the outer sleeve 126 can be seen inside the massage body 102. Between the outer sleeve 126 and the inner sleeve 136, the arc-shaped contact point 146 of the modulation squeegee 147B presses on and makes electrical contact with the conductive strip 135B. The upper cover 129 is fixed to the cylinder 149, so this pair does not move. The screw 124 is shown as having a double helical groove 131.

[0053] Figure 7 is a cross-sectional view of a reciprocating massage device according to an exemplary embodiment of the present invention. In this embodiment, the nut assembly mainly remains stationary, and the screw 124 is driven to rotate by a driving mechanism 107 (such as a rotary motor or an electric motor) to achieve the telescopic movement of the screw 124 while rotating, thereby driving the massage body 102 to reciprocate relative to the handle portion 108. The principle of the reciprocating movement in this embodiment is the same as that of Figure 2 the reciprocating movement principle in the embodiment shown in the figure; the same as the foregoing embodiment, the external thread provided on the outer wall of the screw 124 in this embodiment is still the double helical groove 131, and a part of the nut assembly is located in the double helical groove 131. When the screw 124 rotates, the nut assembly continuously moves in the double helical groove 131, prompting the screw 124 to rise and fall. Refer to Figure 8 . The double helical groove 131 includes a rising groove that drives the nut assembly to rise and a falling groove that drives the nut assembly to fall. The rising groove and the falling groove have different helix directions, which can be understood as one being left-handed and the other being right-handed. They are staggered with each other, and the top end of the rising groove is connected to the top end of the falling groove, and the bottom end of the rising groove is connected to the bottom end of the falling groove, facilitating the nut assembly to enter the falling groove from the rising groove or enter the rising groove from the falling groove, ensuring that when the screw 124 rotates in one direction, a reciprocating movement can be effectively achieved; in addition, refer to Figure 7-9, The reciprocating massage device includes a handle part 108 and a massage body 102 provided on the handle part 108. The interior of the whole formed by assembling the handle part 108 and the massage body 102 has a cavity. A detachable outer shell 117 and a fixed outer shell 119 are provided inside the handle part 108; a screw rod 124 and a nut assembly that mates with the external thread of the screw rod 124 are provided in the cavity; the screw rod 124 is connected to the massage body 102 through a massage component 101, and the nut assembly is coupled to the handle part 108. The screw rod 124 is configured to drive the reciprocating motion of the massage body 102. When the screw rod 124 rotates, it drives the massage body 102 to reciprocate relative to the handle part 108; through the cooperation of the screw rod 124 and the nut assembly, the rotating screw rod 124 reciprocates along its own length direction. Through the reciprocating motion of the screw rod 124, the massage body 102 is driven to reciprocate, so as to realize the reciprocating stimulation of the user's skin through the massage body 102. Compared with the crank and connecting rod reciprocating mechanism in the prior art, in the present utility model, through the cooperation of the nut assembly and the screw rod 124, the space occupation can be greatly reduced, and the transmission efficiency is high. In addition, directly through the cooperation of the screw rod 124 and the nut assembly, the screw rod 124 can be lifted and lowered in its length direction, which can effectively avoid the problem of asymmetric forces in the ascending and descending strokes of the crank and connecting rod reciprocating mechanism.

[0054] See Figure 7-9 , In this embodiment, the difference from the previous embodiment is that a stirring shaft is provided on the screw rod 124. The stirring shaft is configured to rotate relative to the nut assembly with the screw rod 124 and also reciprocate relative to the nut assembly with the screw rod 124. One end of the stirring shaft is connected to the screw rod 124, and the other end abuts against the head of the massage body 102 through a vibration motor. Among them, the vibration motor is the massage component 101. The stirring shaft is configured to drive the head of the massage body 102 to swing during the rotation with the screw rod 124. As the stirring shaft rotates, the head of the massage body 102 can stir and stimulate the position in contact with the user's body. It can also be understood that the massage body 102 changes the pressing stimulation of different positions in contact with the user's body in real time as the stirring shaft rotates; a massage component 101 is connected to the free end of the stirring shaft. When the stirring shaft rotates, it causes the massage component 101 to swing, so as to drive the head of the massage body 102 to swing. The stirring shaft includes a first rod body 1031 connected to the screw rod 124 and a second rod body 1032 connected to the first rod body 1031. The first rod body 1031 and the second rod body 1032 are arranged at an angle, and the angle range is 90° < α < 180°, preferably 110° ≤ α ≤ 170°. Through the special structure setting of the stirring shaft, the stirring shaft can drive the massage component 101 to rotate and swing at the same time during the rotation with the screw rod 124, so as to stimulate different positions in contact with the user's body, that is, stirring stimulation. Since Figure 7An embodiment of the reciprocating massage device can achieve telescopic stimulation and agitation stimulation at the same time. By combining the two, different positions in contact with the user's body can be stimulated, further enhancing the intensity of the stimulation, resulting in a stronger sense of pleasure and a better experience for the user. In addition, the length of the first rod body 1031 is longer than that of the second rod body 1032, and the length ratio between the two is 10:1. That is, when the length of the first rod body 1031 is 10 cm, the length of the second rod body 1032 is 1 cm. Through the combination of the angle and length of the first rod body 1031 and the second rod body 1032, it can be ensured that after the second rod body 1032 is bent and connected to the massage component 101, the head of the massage body 102 will not extend too far laterally, which may affect the user experience and the aesthetic appearance of the product.

[0055] See Figure 7 and 8 As shown in FIGS. and, the nut assembly includes an inner sleeve 149, a guide pin 132, an upper cover 129, and an annular base 151. The inner sleeve 149 is connected to the annular base 151 through a fastener, and the annular base 151 is coupled to the handle portion 108 so that the nut assembly cannot move relative to the handle portion 108. Grooves are respectively provided at the top end of the inner sleeve 149 and the bottom surface of the upper cover 129. When the upper cover 129 is covered on the top end of the inner sleeve 149, the grooves of the two are butted to form a clamping hole 173 for clamping the connecting column 1321 of the guide pin 132, so that the guide pin 132 is coupled to the handle portion 108 and cannot move. The inner sleeve 149 surrounds the outer periphery of the screw 124, and the inner sleeve 149 is coupled to the handle portion 108. One end of the guide pin 132 is connected to the inner sleeve 149, and the other end extends into the double spiral groove on the screw 124. The guide pin 132 includes a connecting column 1321, which extends into the clamping hole formed by the butt joint of the inner sleeve 149 and the upper cover 129 and is clamped. The guide pin 132 further includes an arc portion 1322 connected to the connecting column 1321. The radian of the arc portion 1322 is adapted to the screw 124, so that when the arc portion 1322 extends into the double spiral groove of the screw 124, it can fit as closely as possible to the groove wall of the double spiral groove, ensuring that the cooperation between the guide pin 132 and the screw 124 enables the smooth rotation and lifting of the screw 124.

[0056] See Figure 7 and 8, further comprising an outer sleeve 126 which surrounds the outer periphery of the inner sleeve 149 and moves up and down with the screw 124; a detection device 1491 for detecting the lifting stroke displacement of the outer sleeve 126 is arranged between the outer sleeve 126 and the inner sleeve 149. The detection device 1491 can be a travel switch or the like. Specifically, a connection portion 1261 which is rotatably connected to the stirring shaft on the screw 124 is arranged at the top section of the inner through hole of the outer sleeve 126. The stirring shaft penetrates through the connection portion 1261 on the outer sleeve 126, and the stirring shaft is rotatably connected to the outer sleeve 126 relatively through a first rolling bearing 141, so that the outer sleeve 126 can be prevented from rotating with the stirring shaft, and at the same time, the outer sleeve 126 can be lifted and lowered under the action of the screw 124. By arranging the detection device 1491 between the outer sleeve 126 and the inner sleeve 149, the lifting stroke displacement of the outer sleeve 126 can be detected to feed back to the control board 109, so as to prevent the screw 124 from rising too much and disengaging from the transmission shaft 140 on the rotary motor 107, and also prevent the screw 124 from descending too much and being damaged by extrusion with the annular base 151. In addition, the stirring shaft is connected to the vibration motor through a second rolling bearing 157, so that the vibration motor swings with the stirring shaft. In addition, the torque receiving structure 150 is connected to the rotary motor 107 through a transmission structure and is driven by the rotary motor 107 to drive the screw 124 to rotate. The screw 124 is matched with the nut assembly during rotation to realize lifting. At the same time, the torque receiving structure 150 has an inner cavity, and the transmission shaft 140 is inserted into the inner cavity. The shape of the transmission shaft 140 and the shape of the inner cavity are oval or runway-shaped, so that the transmission shaft 140 can drive the torque receiving structure 150 to rotate, and at the same time, the torque receiving structure 150 can move up and down with the screw 124. Refer to Figure 1 , the head of the massage body 102 matches the swinging amplitude of the massage component 101, so that the top end of the head of the massage body 102 can form a state of pressing the skin.

[0057] Refer to Figure 7-9, the transmission structure between the rotary drive mechanism (such as a rotary motor or an electric motor) 107 and the transmission shaft 140 includes a first gear 159 connected to the output shaft of the rotary motor 107, a second gear 162 meshing with the first gear 159, a third gear 163 rotating coaxially with the second gear, a fourth gear 164 meshing with the third gear 163, a fifth gear 165 rotating coaxially with the fourth gear 164, and a sixth gear 166 meshing with the fifth gear 165. Among them, the sixth gear 166 is connected to the transmission shaft 140. Through the transmission of the transmission structure, the transmission shaft 140 is rotated under the drive of the rotary motor 107. A support housing 167 is provided at the top of the rotary motor 107. The transmission structure is arranged in the support housing 167, and a convex column 1671 protruding towards the screw direction is further provided at the top end of the support housing 167. One end of the transmission shaft 140 penetrates through the convex column and extends into the inner cavity of the torque receiving structure 150. The convex column 1671 provides radial support for the transmission shaft 140 to prevent the transmission shaft 140 from wobbling during high-speed rotation.

[0058] In addition, referring to Figure 7 and 8 , a detachable base is connected to the bottom of the handle portion 108. The detachable base includes a connector 168 connected to the handle portion 108. The connector 168 is rotatably connected to the support base 169. A suction cup mounting portion 170 is connected to the bottom end of the support base 169. The bottom surface of the suction cup mounting portion 170 has a partial depression to provide space for the lifting of the silicone suction cup 171. A silicone suction cup 171 capable of lifting under force is provided at the bottom of the suction cup mounting portion 170. A wrench 172 and a pulling member 173 vertically penetrating the suction cup mounting portion 170 are provided on the suction cup mounting portion 170. The wrench 172 is rotatably connected to the top of the pulling member 173, and the bottom of the pulling member 173 is connected to the silicone suction cup 171. The wrench 172 uses the flange track thereon to lift the central axis of the connection between the wrench 172 and the pulling member 173 during rotation, thereby promoting the lifting of the pulling member 173 to drive the silicone suction cup 171 to lift. When the silicone suction cup 171 descends, the air located at the bottom surface of the silicone suction cup is squeezed out, so that the silicone suction cup 171 is firmly adsorbed on a certain plane, and thus the entire reciprocating massage device is fixed on a certain plane. When unlocking is required, the silicone suction cup 171 is pulled to allow air to enter its bottom surface, so that the silicone suction cup 171 can be unlocked and detached from the plane.

[0059] Referring to Figure 8 and 10 , this figure shows that the base assembly includes a detachable outer shell 117, and the detachable outer shell 117 meshes with the fixed outer shell 119, for example, by screws. The detachable outer shell 117 can be removed to expose the battery 110, the drive mechanism 107, and various other components. Referring toFigure 3 , the reciprocating massage device 100 may further include a charging port 120, the first button 111A and the second button 111B discussed above, and a printed circuit board (PCB) 118. A first support structure 152 for supporting the printed circuit board 118 is provided on the inner wall of the detachable housing 117 and the inner wall of the fixed housing 119. A support side plate 153 is provided on the side of the first support structure. Among them, clamping grooves 154 arranged facing each other are respectively provided at the top and bottom (the top and bottom are with respect to the state in Figure 10 ) of the support side plate of the fixed housing 119. One side of the printed circuit board 118 abuts against the first support structure in the detachable housing 117, and the other side abuts against the first support structure in the fixed housing 119. The top of the printed circuit board 118 is clamped in the clamping groove at the top of the support side plate in the fixed housing 119, and its bottom is clamped in the clamping groove at the bottom of the support side plate in the fixed housing 119, so that the printed circuit board 118 is stably installed inside the housing formed by the fixed housing 119 and the detachable housing 117. In addition, still referring to Figure 10 , a second support structure 155 for supporting the motor or the rotary motor is provided on the inner wall of the fixed housing 119 and the inner wall of the detachable housing 117. An arc-shaped depression is provided on the second support structure to adapt to the contour of the motor or the rotary motor. The motor or the rotary motor is firmly clamped inside the housing formed by the fixed housing 119 and the detachable housing 117 through the second support structure in the fixed housing 119 and the second support structure in the detachable housing 117.

[0060] It should be assumed that in the case where one or more elements of the reciprocating massage device in this embodiment are not described in detail in this figure or other figures, these elements can at least be similar to the corresponding elements described elsewhere in the present disclosure.

[0061] In this application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0062] In the description of this specification, the descriptions with reference to terms such as "preferred embodiment", "another embodiment", "other embodiments" or "specific examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0063] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application.

Claims

1. A drive mechanism of a reciprocating massage device, comprising a drive mechanism for outputting rotational motion, characterized in that: It also includes a screw rod driven to rotate by a driving mechanism and a nut assembly matched with the screw rod, and the screw rod is rotated to make the screw rod reciprocate relative to the nut assembly.

2. The driving mechanism of the reciprocating massage device according to claim 1, characterized in that: The outer wall of the screw is provided with an external thread, which is a double helical groove. Part of the nut assembly is located in the double helical groove, and when the screw rotates, the nut assembly moves continuously in the double helical groove to cause the screw to rise and fall.

3. The driving mechanism of the reciprocating massage device according to claim 2, characterized in that: The double helical groove includes an ascending groove that drives the nut assembly to ascend and a descending groove that drives the nut assembly to descend. The ascending groove and the descending groove are staggered with each other, and the top of the ascending groove is connected to the top of the descending groove, and the bottom of the ascending groove is connected to the bottom of the descending groove.

4. The driving mechanism of the reciprocating massage device according to claim 2 or 3, characterized in that: The nut assembly comprises a guide pin and an inner sleeve. The inner sleeve is sleeved on the outer periphery of the screw rod. One end of the guide pin is connected to the inner sleeve, and the other end extends into the double helical groove on the screw rod.

5. The driving mechanism of the reciprocating massage device according to claim 4, characterized in that: The driving mechanism of the reciprocating massage device also includes an outer sleeve, which surrounds the outer sleeve and rises and falls with the screw rod; a detection device for detecting the lifting stroke displacement of the outer sleeve is arranged between the outer sleeve and the inner sleeve.

6. The driving mechanism of the reciprocating massage device according to any one of claims 1 to 3 or 5, characterized in that: The screw rod is provided with a stirring shaft, and the stirring shaft is configured to rotate with the screw rod relative to the nut assembly and to reciprocate with the screw rod relative to the nut assembly.

7. The driving mechanism of the reciprocating massage device according to claim 6, characterized in that: A massage component is connected to the free end of the stirring shaft, and the stirring shaft causes the massage component to swing when it rotates.

8. The driving mechanism of the reciprocating massage device according to claim 6, characterized in that: The stirring shaft comprises a first rod section connected to the screw and a second rod section connected to the first rod section, and the first rod section and the second rod section are arranged at an angle.

9. The driving mechanism of the reciprocating massage device according to any one of claims 1-3 or 5 or 7-8, characterized in that: The invention also comprises a torque receiving structure, wherein the torque receiving structure is connected to the screw rod and is driven to rotate by the driving mechanism to allow the screw rod to reciprocate when rotating.

10. The driving mechanism of the reciprocating massage device according to claim 9, characterized in that: It also includes a transmission shaft, one end of which is connected to the torque receiving structure, and the other end is connected to the transmission structure. The transmission structure is also connected to a driving mechanism. The driving mechanism drives the transmission structure to drive the transmission shaft to rotate, so that the transmission shaft drives the torque receiving structure to rotate.

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