Height-adjustable massage machine core

Abstract

The utility model relates to a height adjusting massage machine core which comprises a base, a massage assembly movably connected to the base and a height adjusting device used for adjusting the distance between the base and the massage assembly. The device comprises a height adjusting rod with a lead screw thread part, the thread part is provided with a lead screw nut, and the nut is connected with a massage assembly through a hinge arm. When the adjusting rod rotates, the nut moves in the axial direction, and the massage assembly is driven to achieve stable and continuous height change. According to the utility model, the occupation of the thickness size can be effectively reduced, and the displacement adjusting capability with a larger stroke is realized.

Description

Technical Field

[0001] This utility model relates to the field of massage mechanism technology, and in particular to a height-adjustable massage mechanism. Background Technology

[0002] With the increasing number of people experiencing lumbar spine problems, various lumbar massage devices have emerged on the market. Currently, most massage devices primarily achieve localized massage of the body through the rotation of the massage head or vibration massage. Different people have different lumbar curvatures and different needs for massage intensity. To meet the needs of more people, massage devices with height adjustment / telescopic functions have emerged. Existing portable lumbar massage devices with height adjustment functions usually use the expansion and contraction of air bags to achieve height adjustment, but using air bags has the problem of a small height adjustment range.

[0003] In addition, portable waist massagers have limited size, so the size of the mechanism needs to be as small as possible, especially the thickness of the mechanism needs to be minimized. This allows more space for the sponge in the thickness direction, improving comfort. Common height-adjustable mechanisms significantly occupy the thickness dimension, and when adjusting the height, only the massage head needs to be in contact with the waist. This also requires that the height adjustment device does not extend beyond the plane where the massage head is located when it is working. Utility Model Content

[0004] In order to solve the above-mentioned problems of the prior art, the present invention provides a height-adjustable massage mechanism.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] A height-adjustable massage mechanism, characterized in that: it includes a base; a massage component is movably connected to the base; it also includes a height adjustment device connected to the base for adjusting the distance between the massage component and the base; the height adjustment device includes at least one height adjustment rod; the height adjustment rod is provided with two threaded portions; the helical directions of the two threaded portions are the same or opposite; a screw nut is fitted on the threaded portion; when the height adjustment rod rotates around its central axis, the threaded portion can drive the screw nut to move along the central axis of the height adjustment rod; the screw nut is connected to the massage component through at least one hinged arm; both ends of the hinged arm are configured as hinges.

[0007] In one embodiment of this utility model, a stop block is constructed on the lead screw nut; a stop groove that mates with the stop block is provided on the base; the stop groove extends along the central axis of the height adjusting rod; the width of the stop groove is greater than the width of the stop block.

[0008] In one embodiment of this utility model, one height adjustment rod is provided.

[0009] In one embodiment of the present invention, the hinge arm includes a first hinge arm and an adapter arm; one end of the first hinge arm is hinged to a lead screw nut, and the other end is hinged to the adapter arm; the end of the adapter arm away from the first hinge arm is hinged to a massage component.

[0010] In one embodiment of this utility model, a driving device for driving the height adjustment rod to rotate is further included; the driving device is a first adjustment knob and / or a first drive motor; the first adjustment knob is anti-rotationally connected to one end of the height adjustment rod; a first worm is constructed on the output shaft of the first drive motor; the first worm meshes with a first worm wheel anti-rotationally connected to the height adjustment rod; the first drive motor is fixedly connected to the base through a first motor housing.

[0011] In one embodiment of this utility model, the massage component is hinged to the base; the massage component is provided with a hinge hole; the base is provided with a hinge shaft; the hinge shaft cooperates with the hinge hole; the height adjustment device is connected to the side of the massage component away from the hinge hole, and the massage component is rotated around the hinge shaft by the height adjustment device to adjust the distance between the massage component and the base.

[0012] In one embodiment of the present invention, the massage assembly includes a massage element for massage connected to the housing; the housing includes an upper shell and a lower shell fixedly connected; and the massage element is drivenly connected to a transmission device.

[0013] In one embodiment of this utility model, the transmission device includes a second drive motor disposed inside the housing for driving the massage element to perform rotational massage; a second worm gear is constructed on the output shaft of the second drive motor; a second worm wheel is meshed on the second worm gear; a transmission gear is coaxially connected to the second worm wheel; a rotating shaft is provided in the middle of the second worm wheel; the transmission gear meshes with an output gear; a massage output shaft is connected to the middle of the output gear to prevent rotation; the massage output shaft passes through the upper housing and is connected to the massage element.

[0014] In one embodiment of this utility model, the massage component includes a massage head and a bottom cover fixedly connected to the massage head; a light panel is provided between the massage head and the bottom cover; the massage head is anti-rotationally connected to the massage output shaft.

[0015] In one embodiment of the present invention, the base is provided with a first receiving groove that cooperates with the second drive motor to reduce the encroachment of the second drive motor on the height space; the massage component is provided with a battery compartment for accommodating the battery; the base is provided with a second receiving groove for accommodating the battery compartment to reduce the encroachment of the battery compartment on the height space.

[0016] The beneficial effects of this utility model are as follows: By optimizing the hinge design and transmission coordination of the height adjustment structure, the interference problem during the lifting and lowering process of the massage component is effectively solved, improving the stability and precision of the movement; at the same time, the thickness (Z-axis direction) of the height adjustment device is effectively reduced, reducing space occupation, and a flat folding structure is achieved while providing sufficient height adjustment stroke; the diverse selection of the lead screw thread and the adaptability of the drive scheme meet the needs of transmission efficiency, load-bearing capacity, and position locking in different scenarios; the combination of manual and electric drive methods takes into account both ease of operation and personalized adjustment needs. The setting of the first and second receiving slots on the base further reduces the overall height and enhances the integration of the structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This utility model is a structural explosion Figure 1 ;

[0019] Figure 2 This utility model is a structural explosion Figure 2 ;

[0020] Figure 3 This utility model is a structural explosion Figure 3 ;

[0021] Figure 4 This utility model has a three-dimensional structure. Figure 1 ;

[0022] Figure 5 This is a side view of the structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Base; 110. First receiving groove; 120. Second receiving groove; 130. Stop groove; 140. Hinge shaft; 200. Massage assembly; 210. Massage piece; 211. Massage head; 212. Light panel; 213. Bottom cover; 220. Housing; 221. Upper housing; 222. Lower housing; 2221. Hinge hole; 2222. Battery compartment; 230. Second drive motor; 231. Second worm gear; 232. Second worm wheel; 233. Transmission gear; 23 4. Rotating shaft; 235. Output gear; 236. Massage output shaft; 300. Height adjustment device; 310. Height adjustment rod; 320. Lead screw thread; 330. Lead screw nut; 331. Stop block; 340. Hinge arm; 341. First hinge arm; 3411. First connecting hole; 342. Adapter arm; 350. First drive motor; 351. First worm gear; 352. First worm wheel; 353. First motor housing; 360. First adjustment knob. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] A height-adjustable massage mechanism, characterized in that: it includes a base 100; a massage component 200 is movably connected to the base 100; it also includes a height adjustment device 300 connected to the base 100 for adjusting the distance between the massage component 200 and the base 100; the height adjustment device 300 includes at least one height adjustment rod 310; the height adjustment rod 310 is provided with two lead screw thread portions 320; the helical directions of the two lead screw thread portions 320 are the same or opposite; a lead screw nut 330 is assembled on the lead screw thread portion 320; when the height adjustment rod 310 rotates around its central axis, the lead screw thread portion 320 can drive the lead screw nut 330 to move along the central axis direction of the height adjustment rod 310; the lead screw nut 330 is connected to the massage component 200 through at least one hinge arm 340; both ends of the hinge arm 340 are configured as hinges.

[0030] This invention utilizes a height adjustment device 300. The rotation of the height adjustment rod 310 drives the linear movement of the lead screw nut 330, which in turn drives the massage component 200 relative to the base 100 via the hinged arm 340. This allows for adjustment of the distance between the massage component 200 and the base 100. Compared to traditional airbag adjustment methods, this provides a wider height adjustment range, meeting the needs of users with different lumbar curvatures. Furthermore, the height adjustment device 300 employs a combination structure of the lead screw nut 330 and the hinged arm 340, resulting in a more compact layout in the height space. This effectively controls the thickness of the massage mechanism, leaving more space for cushioning components such as sponges in the thickness direction, thus improving massage comfort.

[0031] The massage component 200 and the base 100 have various structures for their movable connection; the height adjustment device 300 also has various structures.

[0032] like Figure 1-2As shown, in one embodiment of this utility model, the movable connection between the massage component 200 and the base 100 is specifically as follows: the massage component 200 is hinged to the base 100; the massage component 200 is provided with a hinge hole 2221; the base 100 is provided with a hinge shaft 140; the hinge shaft 140 cooperates with the hinge hole 2221; the height adjustment device 300 is connected to the side of the massage component 200 away from the hinge hole 2221, and the height adjustment device 300 causes the massage component 200 to rotate around the hinge shaft 140 to adjust the distance between the massage component 200 and the base 100. When the height adjustment rod 310 rotates, the lead screw nut 330 moves axially, pushing or pulling the hinge arm 340, thereby driving the massage component 200 to rotate around the hinge shaft 140, realizing precise adjustment of the distance between the massage component 200 and the base 100.

[0033] refer to Figure 2 In one embodiment of this utility model, the movable connection between the massage component 200 and the base 100 is specifically as follows: the massage component 200 is provided with a hinge hole 2221; the base 100 is provided with a hinge shaft 140; the hinge shaft 140 cooperates with the hinge hole 2221; the diameter of the hinge hole 2221 is larger than the diameter of the hinge shaft 140 to form a clearance fit, so that the massage component 200 has a certain degree of swing freedom relative to the base 100; during the height adjustment process, the massage component 200 can swing slightly around the hinge shaft 140 to adapt to the force requirements of different angles; in one embodiment, the shape of the hinge hole 2221 can be designed as an oblong hole, which can also realize the movable connection between the massage component 200 and the base 100 and ensure the normal operation of the height adjustment device 300.

[0034] In one embodiment of this utility model, two hinge holes 2221 are preferably provided on the massage component 200, distributed on the same side of the massage component 200, and cooperate with two corresponding hinge shafts 140 on the base 100. The two hinge shafts 140 are coaxially arranged to form a stable rotational support structure, effectively preventing the massage component 200 from deflecting or jamming during adjustment or operation. The two independent hinge shafts 140 can reduce the use of materials and reduce processing costs, while improving the assembly accuracy and operational stability of the structure. The two hinge shafts 140 are respectively connected to the hinge holes 2221 on both sides, so that the massage component 200 is subjected to more even force when rotating around the axis, avoiding unilateral wear and extending service life.

[0035] In one embodiment of the present invention, two hinge holes 2221 are preferably provided on the massage component 200 and distributed on the same side of the massage component 200. The two hinge holes 2221 are coaxially arranged and cooperate with a corresponding hinge shaft 140 provided on the base 100 to form a stable rotational support structure.

[0036] In one embodiment of this utility model, the hinge hole 2221 can also be set on the base 100, and the hinge shaft 140 that cooperates with the hinge hole 2221 can be set on the massage assembly 200 to achieve the same hinge function. The structural design is flexible and easy to assemble and maintain.

[0037] In one embodiment of this utility model, the movable connection between the massage component 200 and the base 100 is specifically as follows: the massage component 200 and the base 100 are connected by a ball joint structure. The massage component 200 is provided with a ball head seat, and the base 100 is provided with a matching ball head, so that the massage component 200 can swing with multiple degrees of freedom relative to the base 100. Preferably, two sets of ball joint structures are provided, distributed on both sides of the massage component 200, to ensure balance and stability during movement. In one embodiment, the ball joint structure includes a ball head provided on the massage component 200 and a ball head seat provided on the base 100 that cooperates with the ball head.

[0038] In one embodiment of this utility model, the movable connection structure between the massage component 200 and the base 100 is specifically as follows: the massage component 200 and the base 100 are connected by a universal coupling. The universal coupling includes a first fork-shaped joint, a second fork-shaped joint, and a cross shaft connecting the two. The first fork-shaped joint is fixed on the massage component 200, the second fork-shaped joint is fixed on the base 100, and the hinged transmission between the two is realized through the cross shaft.

[0039] In one embodiment of this utility model, the movable connection structure between the massage component 200 and the base 100 is specifically achieved by using a height adjustment device 300 to realize the movable connection between the massage component 200 and the base 100; Reference Figure 1 The left side of the massage component 200 is connected to the base 100 via a set of height adjustment devices 300, and the right side is also provided with a set of height adjustment devices 300 (for realizing the movable connection between the base 100 and the massage component 200). The two sets of height adjustment devices 300 operate synchronously to ensure that the massage component 200 maintains a horizontal posture during the lifting and lowering process. In one embodiment, the two sets of height adjustment devices 300 can operate asynchronously, thereby realizing the tilt adjustment of the massage component 200 relative to the base 100 to meet the personalized needs of different users for massage angle.

[0040] like Figure 1 As shown, in one embodiment of this utility model, a height adjustment rod 310 is provided; the height adjustment rod 310 is provided with two lead screw thread portions 320; the helical directions of the two lead screw thread portions 320 are the same or opposite. When the helical directions are the same or opposite, the massage component 200 can be raised and lowered synchronously.

[0041] refer to Figure 1In one embodiment of this utility model, two height adjustment rods 310 are provided, located on the same side of the massage component 200. Each of the two height adjustment rods 310 has two threaded portions 320, with opposite or the same spiral direction. The threaded portions 320 on the two height adjustment rods 310 respectively cooperate with corresponding threaded nuts 330. The two height adjustment rods 310 can be coaxially arranged, and coordinated lifting and lowering of the two ends of the massage component 200 on the same side can be achieved through synchronous driving. It can be understood that... Figure 1 The single height adjustment lever 310 is cut into two independent parts in the middle for separate control.

[0042] In one embodiment of this invention, two height adjustment rods 310 can be arranged on opposite axes to adapt to different structural space requirements. Asynchronous driving can also achieve coordinated lifting and lowering of the massage component 200 at both ends on the same side. When arranged on opposite axes, the two height adjustment rods 310 are controlled by independent drive devices. In this arrangement, the two height adjustment rods 310 can be parallel or angled, and can be appropriately adjusted according to the specific structure of the mechanism to optimize space utilization.

[0043] In one embodiment of this utility model, when the height adjustment device 300 is used to realize the movable connection structure between the base 100 and the massage component 200, it can be flexibly combined and applied according to various embodiments of the height adjustment rod 310 to meet diverse design requirements; by adjusting the rotation of the height adjustment rod 310 through synchronous or asynchronous control, the lifting and tilting movement of the massage component 200 can be realized, thereby improving the user experience.

[0044] In one embodiment of this utility model, a stop block 331 is constructed on the lead screw nut 330; a stop groove 130 that mates with the stop block 331 is provided on the base 100; the stop groove 130 extends along the central axis of the height adjusting rod 310 (e.g., Figure 1 (Extending in the Y-axis direction); the width of the stop groove 130 is greater than the width of the stop block 331. The width refers to... Figure 1 The dimension in the X-axis direction; when the height adjustment rod 310 rotates, the lead screw nut 330 moves linearly along the Y-axis direction (positive or negative Y-axis direction) under the drive of the lead screw thread 320. Since the width of the stop groove 130 is greater than the width of the stop block 331, the lead screw nut 330 can rotate slightly around the central axis of the lead screw thread 320 while moving linearly along the Y-axis direction. This avoids interference when the massage component 200 rotates around the hinge axis 140 on the side away from the height adjustment rod 310, ensuring smooth and stable rotation and lifting of the massage component 200. The length dimension of the stop groove 130 (e.g. Figure 1The dimension in the Y-axis direction can effectively limit the stroke range of the lead screw nut 330, prevent it from disengaging from the height adjustment rod 310, and ensure the safety and stability of the lifting process.

[0045] In one embodiment of this utility model, the hinge arm 340 includes two arms, which are designated as a first hinge arm 341 and a transition arm 342 for easy distinction. One end of the first hinge arm 341 is hinged to the lead screw nut 330, and the other end is hinged to the transition arm 342. The end of the transition arm 342 away from the first hinge arm 341 is hinged to the massage component 200. Through the linkage structure of the first hinge arm 341 and the transition arm 342, the linear motion of the lead screw nut 330 can be effectively converted into the lifting motion of the massage component 200. The motion can be rotational lifting, tilting lifting, or linear lifting, depending on the layout of the hinge points and the driving method. Taking the massage component 200 and the base 100 using a hinged structure as an example, when the lead screw nut 330 moves axially along the height adjustment rod 310, it drives the first hinge arm 341 to swing around its connection point with the lead screw nut 330, thereby pushing the adapter arm 342 to pull the massage component 200 to rotate around the hinge axis 140, thus realizing the lifting and lowering action of the massage component 200. In this structure, as... Figure 1 As shown, the axis of rotation of the adapter arm 342 when it is hinged to the massage component 200 is parallel to the Y-axis. This can also avoid interference when the massage component 200 rotates around the hinge axis 140 on the other side away from the height adjustment rod 310, and can ensure the linkage stability of the lead screw nut 330, the first hinge arm 341, and the adapter arm 342, ensuring no shaking during the movement.

[0046] refer to Figure 3 In one embodiment of this utility model, the hinge arm 340 includes one, for example, only one first hinge arm 341 is provided; one end of the first hinge arm 341 is hinged to the lead screw nut 330, and the other end is provided with a first connecting hole 3411; the massage assembly 200 is provided with a protrusion that mates with the first connecting hole 3411. Figure 3 (Not shown in the image). The diameter of the protrusion is smaller than the inner diameter of the first connecting hole 3411, thereby avoiding motion interference caused by excessive tightness between the protrusion and the first connecting hole 3411. Compared with the previous embodiment, although the structure is simplified and the height adjustment of the massage component 200 can be achieved, the clearance fit causes slight shaking during movement, affecting the overall stability and motion accuracy of the structure. To alleviate this problem, an elastic buffer can be provided in the first connecting hole 3411, which not only ensures the freedom of movement between the protrusion and the first connecting hole 3411, but also effectively reduces the looseness caused by the fit clearance.

[0047] refer to Figure 3In one embodiment of the present invention, the hinge arm 340 includes one, for example, only one first hinge arm 341 is provided; one end of the first hinge arm 341 is hinged to the lead screw nut 330, and the other end is connected to the massage component 200 by a ball joint structure.

[0048] It should be noted that in this application, the hinge not only includes the rotary joint connection realized by the pin, but also covers the active connection methods that allow multi-degree-of-freedom movement, such as ball joints and universal joints. The multi-degree-of-freedom connection structure, such as ball joints and universal joints, is usually set at the connection end between the hinge arm 340 and the massage component 200 to adapt to the needs of complex motion trajectories, while absorbing assembly errors and small offsets during the movement process. When the first hinge arm 341 and the lead screw nut 330 are connected by a ball joint, in order to avoid the lead screw nut 330 from rotating circumferentially when moving along the height adjustment rod 310, which would cause the power transmission to fail, the lead screw nut 330 needs to be rotated to a limited position. That is, the aforementioned limiting fit structure between the stop block 331 and the stop groove 130 only allows the lead screw nut 330 to rotate around the lead screw thread portion 320 at a small angle.

[0049] In one embodiment of this utility model, the lead screw thread 320 can be a conventional thread, or a trapezoidal thread or a ball screw structure can be used to improve transmission efficiency and load-bearing capacity. When a conventional thread structure is used, the lead screw nut 330 has a certain self-locking capability when it engages with the lead screw thread 320, which can effectively ensure the stability of the massage component 200 when it stops at any height position. Its driving method can be manual drive, electric drive, or a combination of manual and electric drive. When a trapezoidal thread or ball screw structure is used, the transmission accuracy and response speed can be improved while reducing frictional resistance, which is suitable for product scenarios with higher requirements for motion smoothness and dynamic performance. When using a low frictional resistance scheme, in order to ensure the stability of the massage component 200 when it stops at any height position, a braking device can be added to the transmission system or a worm gear auxiliary structure with self-locking function can be used.

[0050] In one embodiment of this utility model, a driving device for driving the height adjustment rod 310 to rotate is further included; the driving device is a first adjustment knob 360 and / or a first drive motor 350; the first adjustment knob 360 is anti-rotatingly connected to one end of the height adjustment rod 310; a first worm gear 351 is constructed on the output shaft of the first drive motor 350; the first worm gear 351 meshes with a first worm wheel 352 anti-rotatingly connected to the height adjustment rod 310; the first drive motor 350 is fixedly connected to the base 100 through a first motor housing 353. The height of the massage component 200 can be manually adjusted by the first adjustment knob 360 to meet the user's personalized needs; the first drive motor 350 realizes automatic lifting control, improving the convenience of operation and the level of intelligence. The transmission cooperation between the worm gear and the worm wheel has a self-locking characteristic, which can stably stop at any position and avoid the slippage caused by the load.

[0051] In one embodiment of this utility model, the height adjustment rod 310 can be driven manually, electrically, or a combination of both. In manual drive mode, one end of the height adjustment rod 310 is equipped with a first adjustment knob 360. The user can directly rotate the height adjustment rod 310 by rotating the first adjustment knob 360. This operation is intuitive and requires no additional energy, making it suitable for scenarios with strict cost control. In electric drive mode, the height adjustment device 300 also includes a first drive motor 350, the output end of which is connected to the height adjustment rod 310. Specifically, the output shaft of the first drive motor 350 is equipped with a first worm gear 351, and the height adjustment rod 310 is correspondingly equipped with a first worm wheel 352 that meshes with the first worm gear 351. The rotational motion of the motor is transmitted to the height adjustment rod 310 through the worm wheel and worm gear transmission. The first drive motor 350 can be a reversible motor, and in conjunction with a controller, it realizes the electric adjustment of the height of the massage component 200, improving the convenience and intelligence of operation. The user can set the height via a control panel or remote control.

[0052] In one embodiment of this utility model, the massage assembly 200 includes a massage element 210 connected to the housing 220 for massage; the housing 220 includes an upper shell 221 and a lower shell 222 fixedly connected; the massage element 210 is drivenly connected to a transmission device. The massage element 210 is detachably mounted on the outside of the upper shell 221.

[0053] The detachable design of the massage component 210 allows users to replace different types of massage heads according to their needs, such as soft silicone massage heads, stimulating massage heads with raised particles, or acupressure massage heads for acupressure massage, thus achieving a diverse massage experience. The transmission device is located inside the housing 220 and includes a power source and corresponding transmission mechanism to drive the massage component 210 to rotate, swing, or tap. For example, the second drive motor 230 drives an eccentric wheel structure, causing the massage component 210 to produce periodic massage movements. The massage intensity and frequency can be adjusted by controlling the speed of the second drive motor 230. The upper housing 221 and the lower housing 222 are fixedly connected by snaps, screws, or ultrasonic welding to ensure the stable operation of the transmission device inside the housing 220. Simultaneously, the lower housing 222 is directly connected to the aforementioned hinge arm 340 or height adjustment device 300, transmitting the overall weight of the massage component 200 and the force generated during massage to the base 100, ensuring the structural stability of the mechanism during operation. In addition, to improve the stability and quietness of the massage component 200 during operation, shock-absorbing pads and sound-insulating materials can be installed inside the housing 220 to effectively absorb the vibration and noise generated during the operation of the transmission device.

[0054] In one embodiment of this utility model, the transmission device includes a second drive motor 230 disposed inside the housing 220 for driving the massage member 210 to perform rotational massage; a second worm gear 231 is constructed on the output shaft of the second drive motor 230; a second worm wheel 232 is meshed on the second worm gear 231; a transmission gear 233 is coaxially connected to the second worm wheel 232; a rotating shaft 234 is provided in the middle of the second worm wheel 232; the transmission gear 233 meshes with an output gear 235; a massage output shaft 236 is connected to the middle of the output gear 235 to prevent rotation; the massage output shaft 236 passes through the upper housing 221 and is connected to the massage member 210.

[0055] When the second drive motor 230 starts, its output shaft drives the second worm gear 231 to rotate. The second worm gear 231 drives the second worm wheel 232, which meshes with it, to rotate around the rotating shaft 234. The transmission gear 233, coaxially connected to the second worm wheel 232, rotates synchronously, thereby driving the output gear 235 to rotate. Finally, the power is transmitted to the massage element 210 through the massage output shaft 236, realizing the rotational massage action of the massage element 210. The setting of the rotating shaft 234 provides stable support for the second worm wheel 232 and the transmission gear 233, ensuring the smoothness of the transmission process. Through the worm gear transmission, the rotational speed can be effectively reduced and the torque increased, so that the massage element 210 can obtain sufficient massage force. At the same time, the self-locking characteristic of the worm gear prevents the massage element 210 from rotating due to external force in the non-drive state, ensuring safety in use. The cooperation between the transmission gear 233 and the output gear 235 further optimizes the transmission ratio, and the rotational speed of the massage element 210 can be adjusted according to the actual massage needs to adapt to different users' preferences for massage intensity and frequency. A bearing or bushing can be provided between the massage output shaft 236 and the upper shell 221 to reduce frictional resistance during rotation, improve transmission efficiency, and reduce noise. In one embodiment of this utility model, the number of massage elements 210 can be one or more, and multiple massage elements 210 can be arranged at intervals along the length or width direction of the shell 220 to achieve simultaneous massage of a large area. For example, in a neck massage mechanism, two symmetrical massage elements 210 can be provided to simulate the kneading action of human hands; in a waist massage mechanism, four massage elements 210 arranged in a certain array can be provided to achieve full coverage of the muscles on both sides of the waist and the paravertebral muscles. Each massage element 210 can be driven independently or linked through the same transmission device. Independent driving can achieve more flexible massage mode control, such as different massage elements 210 using different speeds or directions, while linked driving can simplify the structure and reduce costs.

[0056] In one embodiment of this utility model, the massage component 210 includes a massage head 211 and a bottom cover 213 fixedly connected to the massage head 211; a light panel 212 is provided between the massage head 211 and the bottom cover 213; the massage head 211 is anti-rotatingly connected to the massage output shaft 236. When the second drive motor 230 is working, power is transmitted through the meshing of the second worm gear 231 and the second worm wheel 232, driving the transmission gear 233 to rotate, thereby driving the output gear 235 and the massage output shaft 236 to rotate, realizing the stable rotation of the massage head 211. The second worm wheel 232 and the transmission gear 233 are coaxially arranged and can be fixedly connected by integral molding or interference fit to ensure no relative rotation during transmission. The rotating shaft 234 can be configured to rotate relative to the second worm wheel 232 or rotate synchronously with the second worm wheel 232.

[0057] In one embodiment of this utility model, the height-adjustable massage mechanism can also integrate a heat therapy function. Specifically, heating elements, such as heating wires or PTC heating pads, can be installed inside the massage element 210 or in the area corresponding to the massage element 210 on the upper shell 221 of the massage component housing 220. The heat therapy function can promote blood circulation in the massaged area, enhance the massage effect, and is especially suitable for relieving muscle stiffness and joint pain. Users can independently control the on / off state of the heat therapy and adjust the temperature level as needed. The power supply of the heating element can be shared with the power supply of the drive motor, and safety is ensured through safety switches and insulation measures. In one embodiment, the lamp panel 212 acts as a heating element, achieving the heat therapy function by heating when energized. Its heat is conducted to the contact area through the massage head 211, achieving a warm massage effect. The lamp panel 212 provides lighting or indication functions while also having a heating function, saving space and improving component integration.

[0058] In one embodiment of this utility model, the base 100 is provided with a first receiving groove 110 that cooperates with the second drive motor 230 to reduce the encroachment of the second drive motor 230 on the height space. The first receiving groove 110 provides a recessed installation space for the first drive motor 350, allowing the first drive motor 350 to be partially or completely accommodated inside the base 100. This not only reduces the overall height dimension of the mechanism, making the structure more compact and facilitating miniaturization and installation in limited spaces, but also better positions and fixes the first drive motor 350, reducing the transmission of vibration and noise generated during operation to the base 100. The shape and size of the first receiving groove 110 are adapted to the specific model and shape of the selected first drive motor 350. For example, if the first drive motor 350 is cylindrical, the first receiving groove 110 can be a circular groove of the corresponding diameter. Figure 1 As shown; if it is a square motor, it can be a square groove; in one embodiment, the first receiving groove 110 can be set as a hollow structure to reduce weight. In some cases, the inner wall of the first receiving groove 110 can also be provided with a cushioning pad or sound-absorbing cotton to further improve the shock absorption and noise reduction effect. The first receiving groove 110 can significantly optimize the internal space layout of the movement, and compress the overall volume to the maximum extent while ensuring the function of each component. Figure 5 As shown, with the assistance of the height adjustment device 300, the massage component 200 can typically be completely folded onto the base 100, meaning the bottom of the massage component 200 can directly and tightly adhere to the upper surface of the base 100, resulting in a compact structure. Figure 4 As shown, when the height adjustment device 300 is working, it can raise the massage component 200 to a higher height, giving it a greater range of motion.

[0059] In one embodiment of this utility model, the massage component 200 is provided with a battery compartment 2222 for accommodating batteries; the base 100 is provided with a second receiving groove 120 for accommodating the battery compartment 2222 to reduce the encroachment of the battery compartment 2222 on the vertical space. The battery compartment 2222 is used to hold rechargeable batteries or disposable batteries, providing independent power supply to various electrical components of the massage mechanism, such as the second drive motor 230 and the light panel 212 (if it also has heating or lighting functions), so that the mechanism can work normally even when disconnected from an external power source, greatly improving the portability and adaptability of use, such as outdoor use, travel, or use in places without a fixed power outlet. The second receiving groove 120 is opened on the upper surface of the base 100, and its shape and size match the battery compartment 2222. When the massage component 200 is lowered to the lowest position or folded into storage state under the action of the height adjustment device 300, the battery compartment 2222 can be precisely embedded or partially sunk into the second receiving groove 120. This design effectively prevents the battery compartment 2222 from protruding from the bottom of the base 100 and occupying additional height space, thereby further reducing the overall height of the mechanism when stored or in its lowest working state, making the structure more flat and compact. The battery compartment 2222 is usually equipped with an openable cover, making it convenient for users to replace or remove the battery for charging. The cover is connected to the housing 220 of the massage component 200 (e.g., the lower housing 222) by means of snap-fit ​​or threaded connection, ensuring the stability and sealing of the battery after installation and preventing dust, moisture, etc. from entering the battery compartment 2222.

[0060] Working principle:

[0061] When the height of the massage component 200 needs to be adjusted, the driving device (such as the first adjustment knob 360 or the first drive motor 350) drives the height adjustment rod 310 to rotate. Since the lead screw nut 330 is threadedly engaged with the height adjustment rod 310 and is limited by the rotation of the stop block 331 and the stop groove 130, the lead screw nut 330 will move axially along the height adjustment rod 310. The movement of the lead screw nut 330 drives the first hinge arm 341, which is hinged to it, to move. The first hinge arm 341, through connection with the adapter arm 342 or directly with the massage component 200 (such as a ball joint, a protrusion engaging with the first connecting hole 3411, etc.), pulls the massage component 200 to rotate around the hinge axis 140, thereby changing the height position of the massage component 200. During the height adjustment process, by reasonably setting the hinge structure (such as multi-bar linkage, elastic buffer) and transmission method (such as trapezoidal thread, ball screw with braking device), the stability, accuracy, and reliability of stopping at any height are ensured.

[0062] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A height-adjustable massage mechanism, characterized in that: The device includes a base (100); a massage component (200) is movably connected to the base (100); and a height adjustment device (300) connected to the base (100) for adjusting the distance between the massage component (200) and the base (100); the height adjustment device (300) includes at least one height adjustment rod (310); the height adjustment rod (310) is provided with two lead screw thread portions (320); the helical directions of the two lead screw thread portions (320) are the same or opposite; a lead screw nut (330) is fitted on the lead screw thread portion (320); when the height adjustment rod (310) rotates around its central axis, the lead screw thread portion (320) can drive the lead screw nut (330) to move along the central axis direction of the height adjustment rod (310); the lead screw nut (330) is connected to the massage component (200) through at least one hinge arm (340); both ends of the hinge arm (340) are configured as hinges.

2. The height-adjustable massage mechanism according to claim 1, characterized in that: The lead screw nut (330) is provided with a stop block (331); the base (100) is provided with a stop groove (130) that mates with the stop block (331); the stop groove (130) extends along the central axis of the height adjustment rod (310); the width of the stop groove (130) is greater than the width of the stop block (331).

3. The height-adjustable massage mechanism according to claim 1, characterized in that: One height adjustment rod (310) is provided.

4. A height-adjustable massage mechanism according to claim 1 or 3, characterized in that: The hinge arm (340) includes a first hinge arm (341) and an adapter arm (342); one end of the first hinge arm (341) is hinged to a lead screw nut (330), and the other end is hinged to the adapter arm (342); the end of the adapter arm (342) away from the first hinge arm (341) is hinged to the massage assembly (200).

5. The height-adjustable massage mechanism according to claim 1, characterized in that: It also includes a drive device for driving the height adjustment rod (310) to rotate; the drive device is a first adjustment knob (360) and / or a first drive motor (350); the first adjustment knob (360) is anti-rotatingly connected to one end of the height adjustment rod (310); a first worm (351) is constructed on the output shaft of the first drive motor (350); the first worm (351) meshes with a first worm wheel (352) anti-rotatingly connected to the height adjustment rod (310); the first drive motor (350) is fixedly connected to the base (100) through a first motor housing (353).

6. The height-adjustable massage mechanism according to claim 1, characterized in that: The massage component (200) is hinged to the base (100); the massage component (200) is provided with a hinge hole (2221); the base (100) is provided with a hinge shaft (140); the hinge shaft (140) cooperates with the hinge hole (2221); the height adjustment device (300) is connected to the side of the massage component (200) away from the hinge hole (2221), and the massage component (200) is rotated around the hinge shaft (140) by the height adjustment device (300) to adjust the distance between the massage component (200) and the base (100).

7. The height-adjustable massage mechanism according to claim 1, characterized in that: The massage assembly (200) includes a massage element (210) for massage connected to the housing (220); the housing (220) includes an upper shell (221) and a lower shell (222) fixedly connected; the massage element (210) is connected to a transmission device.

8. The height-adjustable massage mechanism according to claim 7, characterized in that: The transmission device includes a second drive motor (230) located inside the housing (220) for driving the massage element (210) to perform rotational massage; a second worm (231) is constructed on the output shaft of the second drive motor (230); a second worm wheel (232) is meshed on the second worm (231); a transmission gear (233) is coaxially connected to the second worm wheel (232); a rotating shaft (234) is provided in the middle of the second worm wheel (232); the transmission gear (233) meshes with the output gear (235); a massage output shaft (236) is connected to the middle of the output gear (235) to prevent rotation; the massage output shaft (236) passes through the upper housing (221) and is connected to the massage element (210).

9. A height-adjustable massage mechanism according to claim 8, characterized in that: The massage component (210) includes a massage head (211) and a bottom cover (213) fixedly connected to the massage head (211); a light panel (212) is provided between the massage head (211) and the bottom cover (213); the massage head (211) is anti-rotationally connected to the massage output shaft (236).

10. A height-adjustable massage mechanism according to claim 8 or 9, characterized in that: The base (100) is provided with a first receiving groove (110) that cooperates with the second drive motor (230) to reduce the encroachment of the second drive motor (230) on the height space; the massage assembly (200) is provided with a battery compartment (2222) for accommodating the battery; the base (100) is provided with a second receiving groove (120) for accommodating the battery compartment (2222) to reduce the encroachment of the battery compartment (2222) on the height space.

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