massager

Abstract

This application provides a massager, including a housing, a drive shaft mounted on the housing, and at least one massage component. The drive shaft includes a smooth rod portion and a worm gear portion; the smooth rod portion is connected to the worm gear via a one-way bearing. The massage component includes a first transmission mechanism, a first output component, a first massage head, a second transmission mechanism, a second output component, and a second massage head. The first transmission mechanism includes a transmission shaft with a first transmission helical gear meshing with the worm gear. The first output component connects the first transmission mechanism and the first massage head. The input end of the second transmission mechanism is connected to the worm gear portion, and its output end is connected to the second output component. The second massage head is connected to the second output component. In this application, by setting the first transmission helical gear to mesh with the worm gear, the reduction ratio of the helical gear-worm gear transmission is larger, which reduces the rotational speed of the first transmission helical gear, thereby reducing the rotational speed of the transmission shaft and reducing the noise during operation of the massager.

Description

Technical Field

[0001] This application belongs to the field of massage equipment technology, and more specifically, relates to a massager. Background Technology

[0002] In modern life, massagers have become an important tool for people to relieve fatigue and relax. However, traditional massagers are often accompanied by considerable noise during use, which not only affects the user experience but may also disturb the surrounding environment.

[0003] Therefore, how to reduce the operating noise of massagers has become an urgent problem to be solved in the industry. Utility Model Content

[0004] The purpose of this application is to provide a massager to solve the technical problem of excessive noise during use of existing massagers.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A massager is provided, comprising a housing, a drive shaft disposed on the housing, and at least one massage component. The drive shaft includes a guide rod portion and a worm gear portion; a drive worm gear is connected to the guide rod portion via a one-way bearing; the massage component includes a first transmission mechanism, a first output component, a first massage head, a second transmission mechanism, a second output component, and a second massage head; the first transmission mechanism includes a transmission shaft, on which a first transmission helical gear is disposed, and the first transmission helical gear is driveably connected to the drive worm gear; the first output component is connected to the output end of the first transmission mechanism; the first massage head is driveably connected to the first output component; the input end of the second transmission mechanism is drively connected to the worm gear portion; the second output component is connected to the output end of the second transmission mechanism; the second output component and the first output component are coaxially arranged; the second massage head is driveably connected to the second output component.

[0006] Furthermore, the driving worm is a single-start worm, and the lead angle of the single-start worm is less than 5°.

[0007] Furthermore, the first transmission mechanism also includes a second transmission helical gear, which is connected to the transmission shaft, and the first output component is an output helical gear, which meshes with the second transmission helical gear.

[0008] Furthermore, the first transmission mechanism also includes a ball bearing, and the transmission shaft is mounted on the housing via the ball bearing.

[0009] Furthermore, the second transmission mechanism includes a double gear and a transmission gear; the second output component is an output gear; of the two gears of the double gear, one gear meshes with the worm gear and the other gear meshes with the transmission gear; the transmission gear meshes with the output gear.

[0010] Furthermore, the massager also includes a first eccentric mechanism, the input end of which is connected to the first output component, and the output end of which is connected to the first massage head; the first eccentric mechanism is used to drive the first massage head to reciprocate.

[0011] Furthermore, the first eccentric mechanism includes an eccentric wheel and a movable connecting rod. The eccentric wheel is connected to the output shaft of the first output component. The first end of the movable connecting rod is provided with a receiving groove, and the eccentric wheel is rotatably connected in the receiving groove. The second end of the movable connecting rod is slidably connected to the housing. The first massage head is installed at the first end of the movable connecting rod.

[0012] Furthermore, the massager also includes a second eccentric mechanism, the input end of which is connected to the second output component, and the output end of which is connected to the second massage head; the second eccentric mechanism is used to drive the second massage head to reciprocate.

[0013] Furthermore, the second eccentric mechanism includes an eccentric column, a connecting rod, a slider, and a swing arm; the eccentric column is mounted on the second output component; the first end of the connecting rod is rotatably connected to the eccentric column; the slider is slidably connected to the housing, and the first end of the slider is hinged to the second end of the connecting rod; the first end of the swing arm is hinged to the second end of the slider; and the second end of the swing arm is connected to the second massage head.

[0014] Furthermore, the second eccentric mechanism also includes a limiting member, and the swing arm is provided with a limiting groove, through which the limiting member is connected to the housing.

[0015] The beneficial effects of the massager provided in this application are as follows: Compared with the prior art, the drive shaft in this application includes a smooth rod section and a worm gear section; the smooth rod section is connected to the drive worm gear via a one-way bearing; two different working modes can be achieved when the drive shaft rotates forward and backward. By setting the first transmission helical gear to mesh with the drive worm gear, compared with the traditional worm gear transmission, the helical gear transmission has a larger reduction ratio, which reduces the speed of the first transmission helical gear, thereby reducing the speed of the transmission shaft and reducing the noise during the operation of the massager; the second output component is coaxially arranged with the first output component, making the entire massager structure more compact, occupying less space, and easy to carry and use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 Schematic diagram of the structure of the massager provided in the embodiments of this application Figure 1 ;

[0018] Figure 2 Schematic diagram of the structure of the massager provided in the embodiments of this application Figure 2 ;

[0019] Figure 3 This is a partial cross-sectional view of the massager provided in an embodiment of this application.

[0020] The following are the labeling elements in the figure:

[0021] 100 - Casing;

[0022] 200 - Drive shaft; 201 - One-way bearing; 202 - Drive worm gear;

[0023] 301 - Drive shaft; 302 - First drive helical gear; 303 - Second drive helical gear; 304 - Ball bearing;

[0024] 401 - First output component; 402 - Second output component; 403 - Output shaft;

[0025] 501 - First massage head; 502 - Second massage head;

[0026] 601 - Double gear; 602 - Transmission gear;

[0027] 701 - Eccentric column; 702 - Connecting rod; 703 - Slider; 704 - Rocker arm;

[0028] 801-Eccentric wheel; 802-Moving connecting rod; 821-Sliding head; 803-Connecting rod groove. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] Please refer to the following: Figure 1 and Figure 2 The massager provided in the embodiments of this application will now be described. The massager includes a housing 100, a drive shaft 200 mounted on the housing 100, and at least one massage component. The drive shaft 200 includes a smooth rod portion and a worm gear portion. A drive worm gear 202 is connected to the smooth rod portion via a one-way bearing 201. The massage component includes a first transmission mechanism, a first output component 401, a first massage head 501, a second transmission mechanism, a second output component 402, and a second massage head 502. The first transmission mechanism includes a transmission shaft 301 with a first transmission helical gear 302, which is connected to the drive worm gear 202 of the drive shaft 200. The first output component 401 is connected to the output end of the first transmission mechanism. The first massage head 501 is connected to the first output component 401. The input end of the second transmission mechanism is connected to the worm gear portion. The second output component 402 is connected to the output end of the second transmission mechanism. The second output component 402 and the first output component 401 are coaxially arranged. The second massage head 502 is connected to the second output component 402.

[0034] Compared with the prior art, the massager provided in this application embodiment includes a drive shaft 200 comprising a smooth rod portion and a worm gear portion; a drive worm gear 202 is connected to the smooth rod portion via a one-way bearing 201; two different working modes can be achieved when the drive shaft 200 rotates forward and backward. By setting the first transmission helical gear 302 to mesh with the drive worm gear 202, compared with the traditional worm gear transmission, the helical gear transmission has a larger reduction ratio, which reduces the speed of the first transmission helical gear 302, thereby reducing the speed of the transmission shaft 301 and reducing the noise during the operation of the massager; the second output component 402 is coaxially arranged with the first output component 401, making the entire massager structure more compact, occupying less space, and easy to carry and use.

[0035] It is understood that the one-way bearing 201 is a type of bearing that can rotate freely in one direction and is locked in another. In this embodiment, the direction in which the drive shaft 200 rotates forward is the locking direction. When the drive shaft 200 rotates forward, it drives the first transmission helical gear 302 to rotate forward. At this time, the one-way bearing 201 is locked, and the drive worm 202 can rotate with the drive shaft 200, so that the drive worm 202 meshes with the first transmission helical gear 302, driving the transmission shaft 301 to rotate, and then driving the first output component 401 to rotate, thereby enabling the first massage head 501 to move closer to or further away from the second massage head 502. When the massager is applied to the human body, when the first massage head 501 moves away from the second massage head 502, the load suddenly decreases. However, due to the self-locking effect of the transmission helical gear 302 and the drive worm 202, the one-way bearing 201 will continue to remain locked and will not loosen due to the sudden change in load. This can solve the feeling of lag caused by the sudden change in speed after the load of the massage head changes.

[0036] When the drive shaft 200 reverses, the one-way bearing 201 can rotate freely, which is equivalent to the drive worm gear 202 spinning freely. The first transmission helical gear 302 stops rotating, and consequently, the first massage head 501 stops moving, while the movement of the second massage head 502 remains unaffected. Therefore, by setting the one-way bearing 201, two different working modes can be achieved when the drive shaft 200 rotates forward and backward.

[0037] In one embodiment of this application, the drive shaft 200 is a single-start worm gear, and the lead angle of the single-start worm gear is less than 5°.

[0038] In this embodiment, the lead angle of the single-head worm gear is designed to be less than 5°, which not only enables a self-locking function but also effectively reduces the return error during transmission, thereby improving the stability and accuracy of the massager's operation. Furthermore, the smaller lead angle reduces the impact force when the drive worm gear 202 meshes with the first transmission helical gear 302, further reducing noise generation and allowing the massager to maintain stable operation even in quiet environments.

[0039] In one embodiment of this application, please refer to Figure 1 The first transmission mechanism also includes a second transmission helical gear 303, which is connected to the transmission shaft 301. The first output component 401 is an output helical gear, which meshes with the second transmission helical gear 303.

[0040] In this embodiment, the meshing design of the second transmission helical gear 303 and the output helical gear further improves transmission efficiency and ensures a smoother transmission process. This structure not only reduces frictional loss between gears but also enhances the overall durability of the massager. Furthermore, the placement of the second transmission helical gear 303 ensures more even force distribution, preventing mechanical wear caused by excessive localized force and thus extending the device's service life.

[0041] In one embodiment of this application, please refer to Figure 1 The first transmission mechanism also includes a ball bearing 304, and the transmission shaft 301 is mounted on the housing 100 via the ball bearing 304.

[0042] In this embodiment, by incorporating a ball bearing 304, the frictional resistance of the drive shaft 301 during operation is effectively reduced, thereby further reducing energy loss and noise generation. Compared to traditional sliding bearings, the ball bearing 304 can maintain high rotational accuracy while bearing a large load, ensuring smooth operation of the drive shaft 301 without significant vibration. Furthermore, ball bearings have a long service life, and their internal structure design minimizes lubrication requirements, simplifying maintenance and improving equipment reliability. Installing the ball bearing 304 on the housing 100 not only enhances the overall structural stability but also optimizes the spatial layout of the massager, making the fit between components more compact and rational.

[0043] In one embodiment of this application, please refer to Figure 1 The second transmission mechanism includes a double gear 601 and a transmission gear 602; the second output component 402 is an output gear; of the two gears of the double gear 601, one gear meshes with the worm gear and the other gear meshes with the transmission gear 602; the transmission gear 602 meshes with the output gear.

[0044] In this embodiment, the design of the double gear 601 enables two-stage transmission, effectively reducing the output gear's speed while increasing torque. This structure not only enhances the massage head's working efficiency but also further reduces noise caused by high-speed operation. The meshing of the worm gear and the double gear 601 provides high transmission accuracy and stability, maintaining reliable performance over extended use. Furthermore, the design of the transmission gear 602's engagement with the output gear ensures smoother power transmission, preventing vibration and abnormal noise caused by poor gear meshing. Through this optimized transmission method, the massager achieves a quieter and more comfortable user experience during operation, while also improving the overall durability of the device.

[0045] In one embodiment of this application, the massager further includes a first eccentric mechanism, the input end of which is connected to the first output member 401, and the output end of which is connected to the first massage head 501; the first eccentric mechanism is used to drive the first massage head 501 to reciprocate.

[0046] In this embodiment, by setting a first eccentric mechanism, the rotational motion of the first output component 401 can be converted into the reciprocating motion of the first massage head 501, thereby realizing the massage function for the user. This design not only improves the motion efficiency of the massage head, but also effectively reduces noise caused by mechanical vibration. In addition, the first eccentric mechanism has a simple structure, is easy to assemble and maintain, and further enhances the practicality and reliability of the massager.

[0047] In one embodiment of this application, please refer to Figure 3 The first eccentric mechanism includes an eccentric wheel 801 and a movable connecting rod 702. The eccentric wheel 801 is connected to the output shaft 403 of the first output component 401. The first end of the movable connecting rod 702 is provided with a receiving groove, and the eccentric wheel 801 is rotatably connected in the receiving groove. The second end of the movable connecting rod 702 is slidably connected to the housing 100. The first massage head 501 is installed at the first end of the movable connecting rod 702.

[0048] In this embodiment, an eccentric wheel 801 and a movable connecting rod 702 are configured. When the first output component 401 rotates, the eccentric wheel 801 rotates accordingly, thereby driving the movable connecting rod 702 to reciprocate. The rotational connection between the first end of the movable connecting rod 702 and the eccentric wheel 801 ensures that the movable connecting rod 702 can move smoothly with the rotation of the eccentric wheel 801. This rotational connection design reduces friction and wear, and improves transmission efficiency and service life. At the same time, the sliding connection between the second end of the movable connecting rod 702 and the housing 100 ensures the stability and reliability of the movable connecting rod 702 during reciprocating motion. As the movable connecting rod 702 reciprocates, the first massage head 501 also moves along a certain trajectory. The movement trajectory of the first massage head 501 is controlled by the eccentricity of the eccentric wheel 801 and the sliding stroke of the movable connecting rod 702 within the housing 100.

[0049] Specifically, please refer to Figure 3 The housing 100 is provided with a connecting rod groove 803. The second end of the movable connecting rod 702 has a sliding head 721. The sliding head 721 can slide in the connecting rod groove 803. The cooperative design of the sliding head 721 and the connecting rod groove 803 not only ensures the accurate positioning of the movable connecting rod 702 during reciprocating motion, but also enhances the stability of the structure.

[0050] In one embodiment of this application, the massager further includes a second eccentric mechanism, the input end of which is connected to the second output member 402, and the output end of which is connected to the second massage head 502; the second eccentric mechanism is used to drive the second massage head 502 to reciprocate.

[0051] In this embodiment, by setting a second eccentric mechanism, the rotational motion of the second output component 402 can be converted into the reciprocating motion of the second massage head 502, thereby realizing the massage function for the user. This design not only improves the motion efficiency of the massage head but also effectively reduces noise caused by mechanical vibration. In addition, the second eccentric mechanism has a simple structure, is easy to assemble and maintain, and further enhances the practicality and reliability of the massager.

[0052] In one embodiment of this application, please refer to Figure 2 The second eccentric mechanism includes an eccentric column 701, a connecting rod 702, a slider 703, and a rocker arm 704; the eccentric column 701 is mounted on the second output component 402; the first end of the connecting rod 702 is rotatably connected to the eccentric column 701; the slider 703 is slidably connected to the housing 100, and the first end of the slider 703 is hinged to the second end of the connecting rod 702; the first end of the rocker arm 704 is hinged to the second end of the slider 703; and the second end of the rocker arm 704 is connected to the second massage head 502.

[0053] In this embodiment, the sliding connection design of the slider 703 on the housing 100 ensures the smoothness of its movement while reducing energy loss and noise caused by friction. The rotational connection between the first end of the connecting rod 702 and the eccentric column 701 allows the rotational motion of the eccentric column 701 to be efficiently transmitted to the connecting rod 702, thereby driving the slider 703 to perform linear reciprocating motion. The setting of the swing arm 704 further optimizes the force transmission path, converting the linear motion of the slider 703 into the swing of the swing arm 704, ultimately driving the second massage head 502 to achieve reciprocating motion. This multi-stage transmission design not only improves the efficiency of motion conversion but also significantly reduces vibration and noise during mechanical operation.

[0054] In one embodiment of this application, the second eccentric mechanism further includes a limiting member, and the swing rod 704 is provided with a limiting groove, through which the limiting member passes and connects to the housing 100.

[0055] In this embodiment, the setting of the limiting component and the limiting slide groove effectively controls the movement range of the swing arm 704, preventing excessive deviation or wobbling of the swing arm 704 during operation. The cooperative design of the limiting slide groove and the limiting component not only ensures the accuracy of the swing arm 704's movement but also enhances the stability of the entire transmission system. Through this structural optimization, the reciprocating motion of the second massage head 502 is smoother, reducing noise problems caused by mechanical vibration. In addition, the installation method of the limiting component is simple and reliable, facilitating subsequent maintenance and adjustment, further improving the overall practicality and durability of the massager. This design, while ensuring efficient transmission, also brings users a quieter and more comfortable user experience.

[0056] Specifically, the limiting component can be a pin, and the limiting groove can be an elongated through hole. The pin, as a connecting element, has a simple and stable structure, effectively passing through the elongated through hole and tightly connecting with the housing 100. The design of the elongated through hole allows the rocker arm 704 to swing within a predetermined range, while being constrained by the limiting component, preventing excessive swinging. This design not only enhances the stability of the second eccentric mechanism but also makes the entire transmission system more compact and efficient. Furthermore, the cooperation between the pin and the elongated through hole facilitates installation and disassembly, providing convenience for subsequent maintenance and upkeep.

[0057] In one embodiment of this application, two sets of massage components can be provided, symmetrically arranged about the drive shaft 200 as the central axis. The drive shaft 301 and the first helical gear 302 in the two sets of massage components can share a common set. The first helical gear 302 is installed in the middle of the drive shaft 301, and a second helical gear 303 is installed at each end of the drive shaft 301. The worm gear portion of the drive shaft 200 meshes with two double gears 601 respectively. In this embodiment, by symmetrically arranging the two sets of massage components, bilateral synchronous massage can be achieved, improving the coverage and efficiency of the massage.

[0058] This embodiment describes the working process of the massager:

[0059] When the drive shaft 200 rotates forward, the one-way bearing 201 locks, and the drive worm 202 rotates together with the drive shaft 200, causing the drive worm 202 to mesh with the first transmission helical gear 302, driving the transmission shaft 301 to rotate, which in turn drives the second transmission helical gear 303 on the transmission shaft 301 to rotate. The second transmission helical gear 303 meshes with the first output component 401, driving the first output component 401 to rotate. The first output component 401 transmits the motion to the first massage head 501 through the first eccentric mechanism, thereby driving the first massage head 501 to reciprocate.

[0060] Meanwhile, the worm gear of the drive shaft 200 meshes with one gear of the double gear 601, causing the double gear 601 to rotate. The other gear of the double gear 601 meshes with the transmission gear 602, causing the transmission gear 602 to rotate. The transmission gear 602 meshes with the second output component 402, causing the second output component 402 to rotate. The second output component 402 transmits the motion to the second massage head 502 through the second eccentric mechanism, thereby causing the second massage head 502 to reciprocate, making the second massage head 502 move closer to or further away from the first massage head 501.

[0061] When the drive shaft 200 reverses, the one-way bearing 201 can rotate freely, which is equivalent to the smooth part of the drive shaft 200 spinning freely. The drive worm 202 remains stationary. Correspondingly, the first transmission helical gear 302, the transmission shaft 301, the second transmission helical gear 303, the first output component 401, and the first eccentric mechanism all stop operating, thereby causing the first massage head 501 to stop moving.

[0062] At the same time, the worm gear of the drive shaft 200 rotates in the opposite direction. The worm gear drives the second output component 402 to rotate in the opposite direction through the double gear 601 and the transmission gear 602, and then drives the second massage head 502 to reciprocate through the second eccentric mechanism.

[0063] Therefore, when the drive shaft 200 rotates forward, power can be transmitted to both the first massage head 501 and the second massage head 502 simultaneously; while when the drive shaft 200 rotates in reverse, power can only be transmitted to the second massage head 502, thus realizing multiple working modes of the massager.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A massager characterized by comprising: The device includes a housing, a drive shaft mounted on the housing, and at least one massage component. The drive shaft includes a guide rod portion and a worm gear portion; a drive worm gear is connected to the guide rod portion via a one-way bearing; the massage component includes: A first transmission mechanism, comprising a transmission shaft, on which a first transmission helical gear is provided, the first transmission helical gear being connected to the drive worm gear transmission; A first output component is connected to the output end of the first transmission mechanism; A first massage head, which is connected to the first output component via a transmission connection; The second transmission mechanism has its input end connected to the worm gear section. A second output component is connected to the output end of the second transmission mechanism; the second output component is coaxially arranged with the first output component. The second massage head is connected to the second output component via a transmission connection.

2. The massaging device according to claim 1, wherein The drive worm is a single-start worm, and the lead angle of the single-start worm is less than 5°.

3. The massaging device according to claim 1, wherein The first transmission mechanism further includes a second transmission helical gear, which is connected to the transmission shaft. The first output component is an output helical gear, which meshes with the second transmission helical gear.

4. The massaging device according to claim 1, wherein The first transmission mechanism also includes a ball bearing, and the transmission shaft is mounted on the housing via the ball bearing.

5. The massaging device as claimed in claim 1, wherein The second transmission mechanism includes a double gear and a transmission gear; the second output component is an output gear. Of the two gears in the double gear, one gear meshes with the worm gear, and the other gear meshes with the transmission gear; The transmission gear meshes with the output gear.

6. A massager according to any one of claims 1 to 5, wherein The massager further includes a first eccentric mechanism, the input end of which is connected to the first output component, and the output end of which is connected to the first massage head; the first eccentric mechanism is used to drive the first massage head to reciprocate.

7. The massaging device as claimed in claim 6, characterized in that The first eccentric mechanism includes: An eccentric wheel is connected to the output shaft of the first output component; A movable connecting rod is provided at its first end with a receiving groove, and the eccentric wheel is rotatably connected to the receiving groove. The second end of the movable connecting rod is slidably connected to the housing. The first massage head is installed at the first end of the movable connecting rod.

8. The massager as described in claim 6, characterized in that, The massager also includes a second eccentric mechanism, the input end of which is connected to the second output component, and the output end of which is connected to the second massage head; the second eccentric mechanism is used to drive the second massage head to reciprocate.

9. The massager as described in claim 8, characterized in that, The second eccentric mechanism includes: An eccentric column is mounted on the second output component; A connecting rod, the first end of which is rotatably connected to the eccentric column; A slider, which is slidably connected to the housing, and the first end of the slider is hinged to the second end of the connecting rod; A swing arm, the first end of which is hinged to the second end of the slider; the second end of the swing arm is connected to the second massage head.

10. The massager as described in claim 9, characterized in that, The second eccentric mechanism also includes a limiting member, and the swing arm is provided with a limiting groove. The limiting member passes through the limiting groove and is connected to the housing.

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