Backrest massager

Abstract

The utility model discloses a backrest massager which comprises an installation base, two walking racks, a massage machine core and a massage head, the two walking racks are fixedly arranged on the installation base in a spaced mode, the massage machine core is installed on the walking racks in a reciprocating motion mode, and the massage machine core comprises a machine core shell, a driving motor and two sets of gear transmission mechanisms. The driving motor is installed in the middle of the machine core shell and is perpendicular to the length direction of the walking rack, the two ends of the driving motor are each provided with an output shaft, the gear transmission mechanisms at least comprise driving gears and walking gears, and the driving gears of the two gear transmission mechanisms are meshed with the two output shafts of the driving motor. The two walking gears are meshed with the two walking racks, the massage head is installed on the machine core shell and connected with the gear transmission mechanism, and the two sides of the bottom of the machine core shell are each provided with a walking limiting groove. The width of the massage machine core is small, the massage stroke of the walking racks with the same stroke is larger, the frequency is higher, and the massage effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of massagers, in particular to a backrest massager. Background Art

[0002] With the improvement of people's living standards and the fast-paced lifestyle, more and more people are turning to massage devices to relieve fatigue. There are many types of massage devices on the market, including a variety of backrest massage mechanisms. Backrest massage mechanisms generally refer to massage mechanisms that can move on a certain track, thereby massaging different parts of the body. Compared to fixed-position massage mechanisms, the moving design can stimulate muscles and acupoints more deeply, enhance the massage effect, and effectively relieve muscle fatigue and soreness.

[0003] The travel racks and guide rails of existing backrest massagers are either set on both sides of the massage movement or at the bottom of the massage movement. When set on both sides of the massage movement, the massage movement may detach from the guide rails or travel racks during movement, causing the massage movement to operate poorly. When the guide rails and travel racks are set at the bottom of the massage movement, a separate pressure cap is required to press the guide rails and travel racks against the massage movement. This is not only cumbersome to disassemble and assemble, but also affects the movement of the massage movement if the pressure cap is installed too tightly with the rack and guide rails. Furthermore, the output shaft of the drive motor of the existing massage movement is usually consistent with the length direction of the travel rack. The width of the massage movement shell needs to be greater than the sum of the lengths of the drive motor and the output shaft. The entire massage movement is large in size. After being installed with the travel rack and guide rails, the massage stroke it can reach is small. In addition, the shell of the existing massage movement needs to be equipped with a gear iron shaft, which causes inconvenience in installation and use.

[0004] In view of this, the present invention aims to solve the many shortcomings and inconveniences caused by the imperfect structural design of the existing back massagers and has been developed through active research, improvement and trial production. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a backrest massager with a smaller massage core and a larger massage stroke.

[0006] In order to achieve the above objectives, the solution of the present invention is:

[0007] A backrest massager includes a mounting base, two traveling racks, a massage movement and a massage head. The two traveling racks are fixedly arranged on the mounting base at intervals. The massage movement can be reciprocatingly mounted on the traveling racks. The massage movement includes a movement housing, a drive motor and two sets of gear transmission mechanisms. The drive motor is installed in the middle position of the movement housing and is perpendicular to the length direction of the traveling racks. An output shaft is respectively provided at both ends of the drive motor. The gear transmission mechanism includes at least a drive gear and a traveling gear. The drive gears of the two sets of gear transmission mechanisms are meshed with the two output shafts of the drive motor, and the two traveling gears are meshed with the two traveling racks. The massage head is mounted on the movement housing and connected to the gear transmission mechanism. A traveling limit groove is respectively provided on both sides of the bottom of the movement housing, and the two traveling racks are correspondingly arranged in the two traveling limit grooves.

[0008] Furthermore, a first gear shaft corresponding to the driving gear and a second gear shaft corresponding to the traveling gear are respectively provided on both sides of the corresponding driving motor in the movement housing. The first gear shaft and the second gear shaft are integrally formed with the movement housing. The driving gear is sleeved on the first gear shaft, and the traveling gear is sleeved on the second gear shaft.

[0009] Furthermore, the gear transmission mechanism includes the driving gear, a first transmission gear, a second transmission gear and the traveling gear. The driving gear and the first transmission gear are double gears, the first transmission gear is located at the top of the driving gear, the second transmission gear and the traveling gear are another double gear, the second transmission gear is located at the top of the traveling gear, the second transmission gear is meshed with the first transmission gear, and a transmission shaft extending at night is provided at the center of the second transmission gear, and the massage head is connected to the transmission shaft.

[0010] Furthermore, the travel limiting groove is a groove extending inward from the bottom of the movement shell of the massage movement, and baffles are provided on two opposite sides of the bottom of the travel limiting groove, and an opening is formed between the baffles on both sides of the travel limiting groove.

[0011] Furthermore, the movement housing is provided with a walking area corresponding to the walking gear on the outer periphery of the second gear shaft, and a gap connected to the walking limiting groove is provided on one side of the walking area corresponding to the walking limiting groove, through which the walking gear is engaged with the walking rack.

[0012] Furthermore, the movement housing is provided with a center plate installation area on one side of the driving motor, the power supply and circuit board are installed in the center plate installation area, and an openable and closable center box cover is provided on the top of the movement housing corresponding to the center plate installation area.

[0013] Furthermore, the movement housing includes a movement upper cover and a movement lower cover, and the movement upper cover and the movement lower cover are combined with a detachable fixed cover. Massage head mounting grooves for installing massage heads are provided on both sides of the top surface of the movement upper cover. The massage head is installed in the massage head mounting groove, and a heating lamp board is installed in the massage head mounting groove.

[0014] Furthermore, the massage head of this embodiment includes a massage head base and a first massage group, a second massage group, a third massage group and a fourth massage group arranged on the massage head base. The first massage group and the second massage group are arranged at the front and rear ends of the top surface of the massage head base, and the third massage group and the fourth massage group are arranged at the left and right ends of the top surface of the massage head base. The heights of the first massage group, the second massage group, the third massage group and the fourth massage group are all different, so that the entire massage head forms different height differences.

[0015] With the above structure, when the drive motor of the backrest massager of the present invention is in operation, the two output shafts drive the drive gears meshing therewith to rotate, and the drive gears directly or indirectly drive the travel gears and the massage head to rotate, thereby achieving the travel gears moving forward or backward along the travel rack and the massage head to perform a rotational massage. The utility model installs the drive motor perpendicular to the length of the travel rack, and output shafts are provided on both sides of the drive motor to mesh with the drive gears of the two sets of gear transmission mechanisms. This design allows the movement housing of the massage movement to be only slightly larger than the width of the drive motor or slightly larger than the maximum outer diameter of the gears of the gear transmission mechanism, thereby minimizing the width of the massage movement, allowing the travel rack of the same travel stroke to have a larger massage stroke, a higher frequency, and a better massage effect. Furthermore, the present invention directly forms a travel limit groove at the bottom of the movement shell for the flexible rack to pass through. During installation, after passing one end of the two travel racks through the travel limit groove, the massage movement and the travel rack can be installed together, which can enable the travel gear to move stably on the travel rack without the need for a pressure cover for locking. Not only is the installation simpler and more convenient, but directly forming the travel limit groove at the bottom of the movement shell can also further reduce the volume of the entire backrest massage movement and save material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional exploded schematic diagram of the present utility model.

[0017] Figure 2 This is another exploded perspective view of the present invention.

[0018] Figure 3 It is a three-dimensional combination schematic diagram of the utility model.

[0019] Figure 4 It is a top view schematic diagram of the present utility model.

[0020] Figure 5 for Figure 4Middle AA section view.

[0021] Description of labels:

[0022] 10. Mounting base; 20. Traveling rack; 30. Massage movement; 31. Movement housing; 311. First gear shaft; 312. Second gear shaft; 313. Traveling area; 314. Notch; 315. Center plate mounting area; 316. Center box cover; 317. Movement upper cover; 318. Movement lower cover; 319. Massage head mounting slot; 32. Drive motor; 321. Output shaft; 33. Gear transmission mechanism; 331. Drive gear; 332. Traveling gear; 333. First transmission gear; 334. Second transmission gear; 335. Transmission shaft; 34. Traveling limit groove; 341. Baffle; 342. Opening; 35. Circuit board; 36. Heating lamp board; 40. Massage head; 41. Massage head seat; 42. First massage group; 43. Second massage group; 44. Third massage group; 45. Fourth massage group. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0024] In the description of the present invention, it should be understood that terms such as "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] like Figures 1 to 5As shown, the utility model discloses a backrest massager, which includes a mounting base 10, two walking racks 20, a massage movement 30 and a massage head 40. The two walking racks 20 are fixedly arranged on the mounting base 10 at intervals. The massage movement 30 can be reciprocated and mounted on the walking racks 20. The massage movement 30 includes a movement housing 31, a drive motor 32 and two sets of gear transmission mechanisms 33. The drive motor 32 is installed in the middle position of the movement housing 31 and is perpendicular to the length direction of the walking racks 20. The two ends of the drive motor 32 are respectively The housing 31 is provided with an output shaft 321. The gear transmission mechanism 33 includes at least a drive gear 331 and a travel gear 332. The drive gears 331 of the two gear transmission mechanisms 33 mesh with the two output shafts 321 of the drive motor 32, and the two travel gears 332 mesh with the two travel racks 20. The massage head 40 is mounted on the housing 31 and connected to the gear transmission mechanism 33. A travel stop groove 34 is provided on each side of the bottom of the housing 31, and the two travel racks 20 are correspondingly positioned within the two travel stop grooves 34. When the drive motor 32 is running, the two output shafts 321 drive the meshed drive gears 331 to rotate. The drive gears 331 directly or indirectly drive the travel gears 332 and the massage head 40 to rotate, thereby enabling the travel gears 332 to move forward or backward along the travel racks 20 and the massage head 40 to perform massage.

[0026] The utility model back massager is provided with a drive motor 32 installed perpendicular to the length direction of the travel rack 20, and an output shaft 321 is provided on both sides of the drive motor 32 to mesh with the drive gears of the two sets of gear transmission mechanisms 33. Such a design can make the core housing 31 of the massage mechanism 30 only need to be slightly larger than the width of the drive motor 32 or slightly larger than the maximum gear outer diameter of the gear transmission mechanism 33, so that the width of the massage mechanism 30 can be reduced as much as possible, so that the travel rack 20 with the same stroke can have a larger massage stroke, a higher frequency, and a better massage effect. Furthermore, the utility model directly forms a travel limit groove for the flexible rack to pass through at the bottom of the core housing 31. During installation, after one end of the two travel racks 20 is passed through the travel limit groove, the massage mechanism 30 and the travel rack 20 can be installed together, so that the travel gear 332 can travel stably on the travel rack 20 without using a gland for locking. Not only is installation simpler and more convenient, but the travel limit groove directly formed on the bottom of the core housing can further reduce the volume of the entire back massage mechanism, saving material costs.

[0027] In this embodiment, a first gear shaft 311 corresponding to the drive gear 331 and a second gear shaft 312 corresponding to the running gear 332 are respectively provided on both sides of the movement housing 31 corresponding to the drive motor 32. The first gear shaft 311 and the second gear shaft 312 are integrally formed with the movement housing 31. The drive gear 331 is sleeved on the first gear shaft 311, and the running gear 332 is sleeved on the second gear shaft 312. Compared to the method of adding gear iron shafts to the outer shell, the present utility model directly forms the first gear shaft 311 and the second gear shaft 312 on the movement housing 31, which is more convenient to install and can also save material costs.

[0028] In this embodiment, the gear transmission mechanism 33 includes the driving gear 331, the first transmission gear 333, the second transmission gear 334 and the traveling gear 332. The driving gear 331 and the first transmission gear 333 are double gears, and the first transmission gear 333 is located at the top of the driving gear 331. The second transmission gear 334 and the traveling gear 332 are another double gear. The second transmission gear 334 is located at the top of the traveling gear 332. The second transmission gear 334 is meshed with the first transmission gear 333. The center of the second transmission gear 334 is provided with a transmission shaft 335 extending therefrom, and the massage head 40 is connected to the transmission shaft 335. When the drive motor 32 rotates forward or reverse, its output shaft 321 drives the driving gear 331 and the first transmission gear 333 to rotate forward or reverse. When the first transmission gear 333 rotates, it drives the second transmission gear 334, the traveling gear 332 and the transmission shaft 335 engaged therewith to rotate. Since the traveling gear 332 is engaged with the traveling rack 20, the traveling gear 332 can move forward or backward along the traveling rack 20 when it rotates. The rotation of the transmission shaft 335 drives the massage head 40 to rotate forward or reverse.

[0029] In this embodiment, the travel limit groove 34 is a groove extending inward from the bottom of the movement housing 31 of the massage movement 30. Baffles 341 are provided on opposite sides of the bottom of the travel limit groove 34. The baffles 341 on either side of the travel limit groove 34 prevent the travel rack 20 from falling out of the travel limit groove 34, thereby limiting the travel rack 20. To further facilitate the installation of the travel rack 20, an opening 342 is formed between the baffles 341 on either side of the travel limit groove 34, providing the travel limit groove 34 with a certain degree of elasticity.

[0030] In this embodiment, the movement housing 31 is provided with a walking area 313 corresponding to the walking gear 332 on the outer periphery of the second gear shaft 312, and a notch 314 connected to the walking limiting groove is provided on one side of the walking area 313 corresponding to the walking limiting groove 34, through which the walking gear 332 can engage with the walking rack 20.

[0031] In this embodiment, the massage head 40 is installed on the left and right sides of the top surface of the movement housing 31. The movement housing 31 is provided with a center plate mounting area 315 on one side of the drive motor 32. The power supply and circuit board 35 are installed in the center plate mounting area 315. The top of the movement housing 31 is provided with an openable and closable center box cover 316 corresponding to the center plate mounting area 315. This design is more reasonable and compact.

[0032] In this embodiment, the movement housing 31 includes a movement upper cover 317 and a movement lower cover 318. The movement upper cover 317 and the movement lower cover 318 are detachably fixed together. Massage head mounting grooves 319 for mounting the massage head 40 are provided on both sides of the top surface of the movement upper cover 317. The massage head 40 is mounted in the massage head mounting groove 319. A heating lamp board 36 is installed in the massage head mounting groove 319. When the heating lamp board 36 is turned on, it can provide heating massage.

[0033] The massage head 40 of this embodiment includes a massage head base 41 and a first massage group 42, a second massage group 43, a third massage group 44 and a fourth massage group 45 arranged on the massage head base 41. The first massage group 42 and the second massage group 43 are arranged at the front and rear ends of the top surface of the massage head base 41, and the third massage group 44 and the fourth massage group 45 are arranged at the left and right ends of the top surface of the massage head base 41. The heights of the first massage group 42, the second massage group 43, the third massage group 44 and the fourth massage group 45 are all different, so that the entire massage head 40 forms different height differences, which can make the massage head 40 have a more three-dimensional massage effect during the massage process, thereby improving the massage comfort.

[0034] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A back massager, characterized in that: It includes a mounting base, two walking racks, a massage movement and a massage head. The two walking racks are fixedly arranged on the mounting base. The massage movement can be reciprocatingly mounted on the walking rack. The massage movement includes a movement housing, a drive motor and two sets of gear transmission mechanisms. The drive motor is installed in the middle position of the movement housing and is perpendicular to the length direction of the walking rack. An output shaft is respectively provided at both ends of the drive motor. The gear transmission mechanism includes at least a driving gear and a walking gear. The driving gears of the two sets of gear transmission mechanisms are meshed with the two output shafts of the drive motor, and the two walking gears are meshed with the two walking racks. The massage head is mounted on the movement housing and connected to the gear transmission mechanism. A walking limit groove is respectively provided on both sides of the bottom of the movement housing, and the two walking racks are correspondingly arranged in the two walking limit grooves.

2. A back massager according to claim 1, characterized in that: A first gear shaft corresponding to the driving gear and a second gear shaft corresponding to the traveling gear are respectively provided on both sides of the corresponding driving motor in the movement housing. The first gear shaft and the second gear shaft are integrally formed with the movement housing. The driving gear is sleeved on the first gear shaft, and the traveling gear is sleeved on the second gear shaft.

3. A back massager according to claim 2, characterized in that: The gear transmission mechanism includes the driving gear, a first transmission gear, a second transmission gear and the traveling gear. The driving gear and the first transmission gear are double gears. The first transmission gear is located at the top of the driving gear. The second transmission gear and the traveling gear are another double gear. The second transmission gear is located at the top of the traveling gear. The second transmission gear is meshed with the first transmission gear. A transmission shaft extending at night is provided at the center of the second transmission gear, and the massage head is connected to the transmission shaft.

4. A back massager according to claim 1, characterized in that: The travel limiting groove is a groove extending inward from the bottom of the movement shell of the massage movement. Baffles are provided on two opposite sides of the bottom of the travel limiting groove, and an opening is formed between the baffles on both sides of the travel limiting groove.

5. The back massager according to claim 1, characterized in that: The movement housing is provided with a walking area corresponding to the walking gear on the outer periphery of the second gear shaft, and a gap connected to the walking limiting groove is provided on one side of the walking area corresponding to the walking limiting groove, through which the walking gear is engaged with the walking rack.

6. The back massager according to claim 1, characterized in that: The movement housing is provided with a center plate installation area on one side of the drive motor, the power supply and circuit board are installed in the center plate installation area, and an openable and closable center box cover is provided on the top of the movement housing corresponding to the center plate installation area.

7. The back massager according to claim 1, characterized in that: The movement housing includes a movement upper cover and a movement lower cover, and the movement upper cover and the movement lower cover are combined with a detachable fixed cover. Massage head mounting grooves for installing massage heads are provided on both sides of the top surface of the movement upper cover. The massage heads are installed in the massage head mounting grooves, and a heating lamp board is installed in the massage head mounting grooves.

8. The back massager according to claim 1, characterized in that: The massage head includes a massage head base and a first massage group, a second massage group, a third massage group and a fourth massage group arranged on the massage head base. The first massage group and the second massage group are arranged at the front and rear ends of the top surface of the massage head base, and the third massage group and the fourth massage group are arranged at the left and right ends of the top surface of the massage head base. The heights of the first massage group, the second massage group, the third massage group and the fourth massage group are all different, so that the entire massage head forms different height differences.

Images