A massager

Abstract

The utility model discloses a massager, including chair frame, guide rail and massage device, the massage device is configured to be driven along the guide rail to implement the massage of user, the guide rail includes at least two drive racks, the connection structure is connected between the adjacent drive racks, the connection structure includes two fixed components and pivot joint component, and two fixed components are fixed to corresponding drive rack respectively, and the pivot joint component is arranged between two fixed components to make adjacent fixed component pivot joint, wherein the pivot joint component is pivot joint to at least one drive rack, and the pivot joint component's axis is adjacent or located the index line of drive rack, to make the guide rail bending deformation, inhibit the pitch change amount between the adjacent meshing tooth of two drive racks, to make the massage device smooth along the guide rail, relative to prior art, can ensure that the massage device and rack smooth engagement.

Description

Technical Field

[0001] This utility model relates to the field of massage, and in particular to a massager. Background Technology

[0002] As people's living standards continue to improve, massage devices are becoming increasingly popular as a health care tool. Massagers are a type of health care equipment developed based on physics, bionics, and bioelectricity. Due to their convenient use and significant massage effects, they are favored by users because they can be used anytime in daily life.

[0003] Existing massagers include a chair frame, a guide rail, and a massage device that is driven to move along the guide rail to perform a massage on the user. The chair frame includes a chair frame and a seat frame, and the guide rail includes multiple rack segments that extend from the chair frame to the seat frame.

[0004] However, when the angle between the chair frame and the seat frame is adjusted, the rack will deform, which will cause a large change in the pitch of the adjacent meshing teeth in the two adjacent drive racks. This will cause the massage device to make abnormal noises and vibrate when it moves to the joint between the adjacent racks. Utility Model Content

[0005] To solve the above problems, this utility model provides a massager that can make no abnormal noises or vibrations when the massage device moves to the seam.

[0006] This utility model provides a massager, including a chair frame, a guide rail, and a massage device. The massage device is configured to move along the guide rail under drive to perform a massage on the user. The guide rail includes at least two drive racks. Adjacent drive racks are connected by a connecting structure, the connecting structure including: Two fixed components, each fixedly connected to a corresponding drive rack; and A pivotal member, which is positioned between two fixed members to pivotally connect adjacent fixed members; The pivot member is pivotally connected to at least one of the drive racks, and the axis of the pivot member is adjacent to or located at the index line of the drive rack, so that when the guide rail is bent and deformed, the pitch change between adjacent meshing teeth in the two drive racks is suppressed, so that the massage device moves smoothly along the guide rail.

[0007] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0008] Optionally, adjacent drive racks can rotate, and the rotation angle between adjacent drive racks is less than 15 degrees.

[0009] Optionally, a limiting mechanism is provided between adjacent drive racks, which can limit the rotation amplitude of two adjacent drive racks.

[0010] Optionally, the limiting mechanism includes two pairs of limiting portions located on both sides of the pivot member; For the same pair of limiting parts, the two limiting parts are located on the two drive racks respectively, and the two limiting parts can fit together to limit the rotation amplitude of adjacent drive racks.

[0011] Optionally, the rotation axis between the drive racks is arranged to coincide with the axis of the pivot member.

[0012] Optionally, at least one drive rack has a rotation groove, and the pivot member can extend into the rotation groove to allow the pivot member to rotately engage with the drive rack.

[0013] Optionally, the fixing member has a pivot hole through which the pivot member passes to pivotally connect the two fixing members.

[0014] Optionally, the drive rack includes a main body and meshing teeth fixed to the main body; The fixing member is fixed to the side of the main body facing away from the meshing teeth.

[0015] Optionally, the chair frame includes a back frame and a seat frame; At least two drive racks include: Back rack configured on the back frame; and A rack and pinion mounted on the frame.

[0016] Optionally, at least two drive racks also include: At least one transition rack is disposed between the back frame rack and the seat frame rack. This utility model discloses a massager in which the setting of the fixed component and the pivot component can make the pitch change between adjacent drive racks small, avoid the step difference of the guide rail at the joint, avoid abnormal noise and vibration when the massage device moves to the joint, and ensure smooth engagement between the massage device and the rack. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a massager according to an embodiment of this utility model; Figure 2 for Figure 1 A schematic diagram of the omitted parts of the massager's structure; Figure 3 for Figure 2 Schematic diagram of the middle guide rail; Figure 4 for Figure 3 A structural schematic diagram of the center guide rail from another perspective; Figure 5 for Figure 4 Schematic diagram of the exploded structure of the middle guide rail; Figure 6 for Figure 4 Cross-sectional view of the center guide rail; Figure 7 for Figure 4 A partial structural diagram of the middle guide rail.

[0018] The annotations in the figure are explained as follows: 100. Massager; 10. Chair frame; 11. Backrest frame; 12. Seat frame; 13. Base; 14. Electric push rod; 20. Guide rail; 21. Drive rack; 211. Base; 212. Meshing teeth; 213. Rotating block; 214. Mating groove; 215. Limiting mechanism; 2151. Limiting part; 216. Rotating groove; 22. Fixing member; 23. Pivoting member; 24. Back frame rack; 25. Seat frame rack; 26. Transition rack. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figures 1 to 7As shown, this utility model provides a massager 100, including a chair frame 10, a guide rail 20, and a massage device. The massage device is configured to move along the guide rail 20 under drive to perform a massage on the user. The guide rail 20 includes at least two drive racks 21. Adjacent drive racks 21 are connected by a connecting structure, which includes two fixed members 22 and a pivot member 23. The two fixed members 22 are respectively fixed to the corresponding drive racks 21. The pivot member 23 is disposed between the two fixed members 22 so that adjacent fixed members 22 are pivotally connected. The pivot member 23 is pivotally connected to at least one of the drive racks 21, and the axis of the pivot member 23 is close to or located on the indexing line of the drive rack 21, so that when the guide rail 20 is bent and deformed, the change in tooth pitch between adjacent meshing teeth 212 in the two drive racks 21 is suppressed, so that the massage device moves smoothly along the guide rail 20.

[0023] When adjacent drive racks 21 on the chair frame 10 are bent by external force, the pivot member 23 rotates around the axis, allowing relative angular deflection of adjacent racks. At the same time, because the axis coincides with the pitch line, the deformation of the rack tooth profile parameters in the bending direction is limited to a minimum, ensuring that the pitch change of the meshing teeth 212 is controlled within the required value for continuous meshing of the drive gears. The pitch change between the meshing teeth 212 at the ends of two adjacent drive racks 21 is small, avoiding step differences in the guide rail 20 at the joint, and preventing abnormal noise and vibration when the massage device moves to the joint. This ensures smooth meshing between the massage device and the rack, ultimately achieving smooth movement of the massage device.

[0024] The term "adjacent meshing teeth 212" in two adjacent drive racks 21 can be understood as follows: In two adjacent drive racks, the meshing teeth 212 at the end of one drive rack 21 mesh with the meshing teeth 212 at the end of the other drive rack 21. The small variation in tooth pitch between adjacent meshing teeth 212 in two adjacent drive racks 21 means that the maximum tooth pitch between adjacent meshing teeth 212 in two adjacent drive racks 21 is less than 1.5 times the tooth pitch of a single drive rack 21 meshing tooth 212, and the minimum tooth pitch between adjacent meshing teeth 212 in two adjacent drive racks is greater than 0.8 times the tooth pitch of a single drive rack 21 meshing tooth 212. Preferably, the maximum value of the tooth pitch between adjacent meshing teeth 212 in two adjacent drive racks 21 is less than 1.2 times the tooth pitch of meshing teeth 212 in a single drive rack 21, and the minimum value of the tooth pitch between adjacent meshing teeth 212 in two adjacent drive racks is greater than 0.9 times the tooth pitch of meshing teeth 212 in a single drive rack 21.

[0025] In this embodiment, as Figures 1 to 2As shown, the chair frame 10 includes a backrest 11 and a seat frame 12; at least two drive racks 21 include a backrest rack 24 disposed on the backrest 11 and a seat rack 25 disposed on the seat frame 12. The seat frame 12 is used to support the user's buttocks; the backrest is used to support the user's back. The backrest and seat frame 12 can be rigidly connected or rotatably connected. The connection method between the backrest and seat frame 12 can refer to existing technology and will not be further described here.

[0026] In this embodiment, as Figures 1 to 2 As shown, the chair frame 10 also includes a base 13; the seat frame 12 is rotatably mounted on the base 13. An electric push rod 14 is provided between the seat frame 12 and the base 13, one end of the electric push rod 14 is pivotally connected to the base 13, and the other end is pivotally connected to the seat frame 12; the electric push rod 14 can push the seat frame 12 to deflect the chair frame 10 relative to the seat frame 12.

[0027] In this embodiment, as Figures 1 to 7 As shown, the massage mechanism has a drive wheel; the outer circumference of the drive wheel has multiple external teeth spaced apart, each of which can engage with the meshing teeth 212 on the drive rack 21 to move along the guide rail 20. The massage mechanism can adopt existing technology, which will not be further described here.

[0028] In this embodiment, as Figures 1 to 7 As shown, the guide rail 20 is curved; the guide rail 20 is roughly L-shaped. There are two guide rails 20, which are located on the corresponding sides of the chair frame 10 to make the movement of the massage mechanism more stable.

[0029] In this embodiment, as Figures 1 to 7 As shown, the number of drive racks 21 is set according to actual needs; for example, the number of drive racks 21 can be 2, 3, 4, 5, or 6 or more. The extension path of the drive racks 21 can be adjusted according to the user's body curve. Each drive rack 21 includes a main body and multiple meshing teeth 212 fixed to the main body, with the multiple meshing teeth 212 arranged along the extension path of the drive rack 21. Each drive rack 21 is arranged sequentially along the extension path of the guide rail 20; the ends of adjacent drive racks 21 are either fitted together or spaced apart.

[0030] In this embodiment, as Figures 1 to 7As shown, at least two drive racks 21 also include at least one transition rack 26, which is disposed between the back frame rack 24 and the seat frame rack 25. The transition rack 26 ensures a smooth connection between the back frame rack 24 and the seat frame rack 25, thereby stabilizing the operation of the massage mechanism. The extension path of the transition rack 26 is generally curved to further smooth the connection between the back frame rack 24 and the seat frame rack 25. The number of transition racks 26 is set according to actual needs; for example, the number of transition racks 26 may be one, two, three, or more.

[0031] In this embodiment, as Figures 3 to 7 As shown, adjacent drive racks 21 can rotate, and the rotation angle between adjacent drive racks 21 is less than 15 degrees, to increase the deformation of the guide rail 20, thereby making the guide rail 20 more widely applicable. When the rotation angle between two adjacent drive racks 21 is too large, it will increase the change between adjacent meshing teeth 212 in the two adjacent drive racks 21, making the distance between adjacent meshing teeth 212 in the two adjacent drive racks 21 larger, thus making it impossible for the massage device to mesh smoothly with the drive racks 21. The rotation axis between the drive racks 21 is coincident with the axis of the pivot member 23. Preferably, when the rotation angle between two adjacent drive racks 21 is 10 degrees, the smoothness of the drive wheel in the massage device moving on the drive racks 21 does not change significantly; and it also allows the guide rail 20 to achieve the required deformation.

[0032] In order to enable the rotation of two adjacent drive racks 21; referring to one embodiment, such as Figures 3 to 7 As shown, in two adjacent drive racks 21, one is provided with a rotating block 213, and the other is provided with a mating groove 214 that mates with the rotating block 213. The rotating block 213 is located at the end of one drive rack 21, and the mating groove 214 is located at the end of the other drive rack 21; when two adjacent drive racks 21 are connected, the rotating block 213 is located in the mating groove 214.

[0033] In this embodiment, as Figures 3 to 7As shown, a limiting mechanism 215 is provided between adjacent drive racks 21, which can limit the rotation range of the two adjacent drive racks. The limiting mechanism 215 includes two pairs of limiting portions 2151 located on both sides of the pivot member 23; for the same pair of limiting portions 2151, the two limiting portions 2151 are respectively located on the two drive racks 21, and the two limiting portions 2151 can fit together to limit the rotation range of the adjacent drive racks 21. The limiting portion 2151 is the end face of the drive rack 21; when the two adjacent drive racks 21 rotate to the limit position, the end faces of the two adjacent drive racks 21 will abut together to limit the rotation range of the two adjacent drive racks. The two pairs of limiting portions 2151 located on both sides of the pivot member 23 can be understood as follows: one pair of limiting portions 2151 is located on one side of the pivot member 23, and the other pair of limiting portions 2151 is located on the other side of the pivot member 23. Regarding the same pair of limiting parts 2151, it can be understood that the two limiting parts 2151 are located on the two drive racks 21 respectively: one limiting part 2151 is located on one drive rack 21, and the other limiting part 2151 is located on the other drive rack 21.

[0034] In this embodiment, as Figures 3 to 7 As shown, the fixing member 22 has a plate-like structure; the fixing member 22 is fixed to the drive rack 21 by means of screws, welding or bonding. The fixing member 22 is fixed to the side of the main body facing away from the meshing teeth 212 so that the fixing member 22 avoids the massage mechanism and avoids interference with the movement of the massage mechanism.

[0035] In this embodiment, as Figures 3 to 7 As shown, the pivot member 23 is generally cylindrical; the axis of the pivot member 23 is perpendicular to the extension path of the guide rail 20; the pivot member 23 is generally located at the junction of two adjacent drive racks 21, so that the axis of the pivot member 23 is located between the meshing teeth 212 at the ends of the two adjacent drive racks 21, which can effectively control the change of tooth pitch of adjacent drive racks 21 when the guide rail 20 is bent and deformed, and ensure the smooth movement of the massage device.

[0036] In this embodiment, as Figures 3 to 7 As shown, the fixing member 22 has a pivot hole, and the pivot member 23 passes through the pivot hole to pivotally connect the two fixing members 22. At least one drive rack 21 has a rotation groove 216, and the pivot member 23 can extend into the rotation groove 216 to rotately engage with the drive rack 21.

[0037] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0038] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A massager comprising a chair frame, a guide rail, and a massage device configured to be driven to travel along the guide rail to perform a massage on a user, the guide rail comprising at least two drive racks; characterized in that: Adjacent drive racks are connected by a connecting structure, the connecting structure including: Two fixed components, each fixedly connected to a corresponding drive rack; and A pivotal member, which is positioned between two fixed members to pivotally connect adjacent fixed members; The pivot member is pivotally connected to at least one of the drive racks, and the axis of the pivot member is adjacent to or located at the index line of the drive rack, so that when the guide rail is bent and deformed, the pitch change between adjacent meshing teeth in the two drive racks is suppressed, so that the massage device moves smoothly along the guide rail.

2. A massager according to claim 1, characterized in that, Adjacent drive racks can rotate, and the rotation angle between adjacent drive racks is less than 15 degrees.

3. A massager according to claim 2, characterized in that, A limiting mechanism is provided between adjacent drive racks, which can limit the rotation amplitude of two adjacent drive racks.

4. A massager according to claim 3, characterized in that, The limiting mechanism includes two pairs of limiting portions located on both sides of the pivot member; For the same pair of limiting parts, the two limiting parts are located on the two drive racks respectively, and the two limiting parts can fit together to limit the rotation amplitude of adjacent drive racks.

5. A massager according to any one of claims 2 to 4, characterized in that, The rotation axis between the drive racks is arranged to coincide with the axis of the pivot member.

6. A massager according to claim 1, characterized in that, At least one drive rack has a rotation groove, and the pivot member can extend into the rotation groove to allow the pivot member to rotately engage with the drive rack.

7. A massager according to claim 6, characterized in that, The fixing member has a pivot hole, and the pivot member passes through the pivot hole to pivotally connect the two fixing members.

8. A massager according to claim 1, characterized in that, The drive rack includes a main body and meshing teeth fixedly connected to the main body; The fixing member is fixed to the side of the main body facing away from the meshing teeth.

9. A massager according to claim 1, characterized in that, The chair frame includes a back frame and a seat frame; At least two drive racks include: Back frame rack configured on the back frame; and A rack and pinion mounted on the frame.

10. A massager according to claim 9, characterized in that, At least two drive racks also include: At least one transition rack is disposed between the back frame rack and the seat frame rack.

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