Massage chair

Abstract

The utility model discloses a massage chair contains base frame, seat support, back support, leg support, drive mechanism, interlocking mechanism, the interlocking mechanism is set up in the middle position of base frame along left and right direction, and it contains drive side connecting rod, back support connecting rod and leg support connecting rod, wherein, the first end of drive side connecting rod is pivoted on drive mechanism and can move in the front and back direction by being driven, and the second end is pivoted in the middle part of back support connecting rod, and the middle part is sliding fit with base frame, wherein, the first end of back support connecting rod is pivoted with back support, and the second end is pivoted with the middle part of leg support connecting rod, wherein, the first end of leg support connecting rod is pivoted on seat support, and the second end is sliding fit with the downside of leg support. The massage chair of the application, and drive mechanism can drive back support, leg support synchronous turnover activity through interlocking mechanism.

Description

Technical Field

[0001] This utility model relates to the technology of massage equipment, specifically, to a massage chair. Background Technology

[0002] Massage chairs are common massage devices, typically comprising a base frame, seat support, back support, and leg support. To accommodate different user postures, the seat support, back support, and leg support of a massage chair are usually designed to be relatively movable. For example, the massage chair disclosed in patent application CN201110259128.6 uses a drive device in conjunction with a linkage structure to simultaneously adjust the angles of the backrest, seat, and legs. Other massage chairs employing a similar drive device to simultaneously control the synchronous movement of multiple components include patent applications CN202020379308.2 and CN202010746672.2. This application aims to provide a massage chair frame that differs from existing technologies, also capable of simultaneously controlling the synchronous movement of multiple components with a single drive device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a massage chair that adopts a technical solution different from the existing technology, and can control the synchronous movement of multiple components through a single drive device.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A massage chair, comprising: a base frame; a seat support mounted on the base frame; a back support that can be flipped up and down and mounted on the seat support or the base frame; a leg support that can be flipped up and down and mounted on the front side of the seat support; a drive mechanism; and a linkage mechanism that converts the driving force of the drive mechanism into a flipping force that drives the back support and the leg support to flip synchronously; wherein, the linkage mechanism is disposed in the middle position of the base frame in the left-right direction, and its It includes a drive-side link, a back support link, and a leg support link; wherein, the first end of the drive-side link is pivotally connected to the drive mechanism and driven by it to move in the front-rear direction, and the second end is pivotally connected to the middle part of the back support link, and the middle part is slidably engaged with the base frame; wherein, the first end of the back support link is pivotally connected to the back support, and the second end is pivotally connected to the middle part of the leg support link; wherein, the first end of the leg support link is pivotally connected to the seat support, and the second end is slidably engaged with the lower side of the leg support.

[0005] Preferably, the seat bracket is slidably mounted on the base frame.

[0006] Preferably, the base frame has multiple sets of seat bracket sliding grooves spaced apart from back to front, and the seat brackets slide in cooperation with the multiple sets of seat bracket sliding grooves.

[0007] Preferably, the angle at which the sliding grooves of the multiple sets of seat supports tilt backward gradually decreases from back to front.

[0008] Preferably, the base frame has a first sliding groove arranged in front and behind, and the first end of the drive-side connecting rod slides into the first sliding groove.

[0009] Preferably, the base frame has a second sliding groove, the second sliding groove having a transverse sliding section arranged front and rear, and an arc-shaped sliding section that gradually slopes upward from back to front, the transverse sliding section being located on the rear side of the arc-shaped sliding section; the middle part of the drive-side connecting rod is slidably engaged with the second sliding groove.

[0010] Preferably, the drive mechanism includes a telescopic push rod, the drive end of which is pivotally connected to the front side of the base frame, while the telescopic rod end is pivotally connected to the first end of the drive-side connecting rod.

[0011] Preferably, the second end of the leg support connecting rod is provided with a roller or slider, which abuts against the lower side of the leg support and slides in cooperation with it.

[0012] Preferably, the back support is provided with a massage structure.

[0013] Preferably, the seat support is provided with a massage structure.

[0014] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects: The massage chair of this application has a drive mechanism that can drive the back support and leg support to rotate synchronously through the linkage mechanism. The massage chair has a stable structure, is easy to assemble, and enriches the design ideas of massage chairs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0016] Figures 1 to 4 Schematic diagrams of the chair frame of a massage chair according to one embodiment are shown from different perspectives; Figure 5 A first exploded view of the chair frame of a massage chair according to one embodiment is shown; Figure 6 A second exploded view of the chair frame of a massage chair according to one embodiment is shown; Figure 7A third exploded view of the chair frame of a massage chair according to one embodiment is shown; Figure 8 A fourth exploded view of the chair frame of a massage chair according to one embodiment is shown; Figure 9 The diagram illustrates the process of the elastic locking structure changing from a disassembled state to an assembled state relative to the first linkage joint in the frame of a massage chair according to an embodiment. Figure 10 A diagram illustrating the change of the chair frame of a massage chair from a reclining position to a seated position is shown. Figure 11 An exploded view of one embodiment of a massage chair is shown; Figure 12 A schematic diagram of one embodiment of a massage chair is shown; Figure 13 A schematic diagram of the chair frame of a massage chair according to another embodiment is shown, excluding the linkage retainer.

[0017] Figure label: Base frame 1, base 1A, side support seat 1B, first sliding seat 1C, second sliding seat 1D, seat bracket 2, back support 3, first rotating joint 3A, first linkage joint 3B, elastic locking structure 3C, leg support 4, drive mechanism 5, linkage mechanism 6, drive side link 6A, back support link 6B, leg support link 6C, linkage state retainer 7, second rotating joint 7A, second linkage joint 7B, first sliding groove S1, second sliding groove S2. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0020] Combination Figures 1 to 10 In one embodiment, the massage chair frame of this application includes a base frame 1, a seat support 2, a back support 3, a leg support 4, a drive mechanism 5, a linkage mechanism 6, and a linkage state holding frame 7. The following will describe the details in conjunction with the figures. For ease of explanation, the X direction in the figures is defined as the direction from right to left, the Y direction as the direction from back to front, and the Z direction as the direction from bottom to top.

[0021] [Framework] Combination Figure 5 In this embodiment, the base frame 1 includes a base 1A, a side support 1B, a first sliding joint 1C, and a second sliding joint 1D. The base 1A is generally in the shape of a cuboid frame. The side support 1B is disposed on the left and right sides of the base 1A. The first sliding joint 1C is disposed on the rear side of the base 1A and is located in the middle of the base 1A in the left-right direction. The second sliding joint 1D is disposed on the upper side of the side support 1B.

[0022] The first sliding joint seat 1C is provided with a first sliding joint groove S1 and a second sliding joint groove S2. The first sliding joint groove S1 is arranged front and back. The second sliding joint groove S2 has a transverse sliding joint section S21 arranged front and back, and an arc-shaped sliding joint section S22 that gradually slopes upward from back to front. The transverse sliding joint section S21 is located behind the arc-shaped sliding joint section S22.

[0023] The second sliding seat 1D is provided with multiple sets of seat bracket sliding grooves spaced apart from back to front, and the angle of inclination of the multiple sets of seat bracket sliding grooves gradually decreases from back to front. Figure 5 In this embodiment, the base bracket sliding groove is divided into three sets, namely base bracket sliding groove S3, S4 and S5.

[0024] [Seat Support] The seat support 2 is mounted on the base frame 1, and the seat support 2 is approximately in a grid shape. In this embodiment, the seat support 2 is slidably mounted on the base frame 1. Specifically, the seat support 2 has sliding members 2A located on the left and right sides. The number of sliding members 2A is the same as the number of sliding grooves of the seat support. Through the sliding engagement of the sliding members 2A with the aforementioned multiple sets of seat support sliding grooves S3, S4, and S5, the seat support 2 and the base frame 1 are slidably engaged. The sliding members 2A can be sliding pins or pulleys. Figure 6 In this embodiment, a connecting groove 2B is provided on the rear side of the seat bracket 2. The connecting groove 2B is used to connect the back bracket 3. The connecting groove 2B has a structure that is narrow in the middle and wide on both sides. The inlet section of the connecting groove 2B is roughly V-shaped, and the opening size gradually decreases from the outside to the inside. The part of the connecting groove 2B used to connect the first rotating connecting part 3A of the back bracket 3 is roughly circular.

[0025] [Back Support] In this embodiment, the back support 3 can be flipped up and down and installed on the base support 2, combined with Figure 10 When the back support 3 is flipped downwards, the chair frame is in a reclining position. Figure 6 and Figure 9 The back support 3 has a first rotating joint 3A, a first linkage joint 3B and an elastic locking structure 3C.

[0026] The first rotating joint 3A is located on the left and right sides of the back support 3, and in this embodiment, it is a strip-shaped shaft in the left-right direction. The first rotating joint 3A has a joint portion that is adapted to the joint groove 2B (see reference). Figure 9 The enlarged view shows the joint portion (the annular groove portion of the first rotating joint portion 3A). After the first rotating joint portion 3A is detachably installed in the joint groove 2B, it can rotate relative to the joint groove 2B. That is, the first rotating joint portion 3A can be detachably pivotally connected to the seat bracket 2.

[0027] The first linkage joint 3B is used for detachably pivoting to the linkage mechanism 6, specifically, the linkage... Figure 3 , Figure 6 and Figure 9 The first linkage joint 3B has a pivot groove M1 that is approximately semi-closed circular hole in shape, which can be pivotally connected to the linkage mechanism 6 in a separable manner by hooking it to the pin L.

[0028] The elastic locking structure 3C has a locked state and an unlocked state. When the elastic locking structure 3C is in the locked state, it can keep the first linkage engagement 3B engaged with the linkage mechanism 6. When it is in the unlocked state, it allows the first linkage engagement 3B to separate from the linkage mechanism 6. Figure 3 , Figure 6 and Figure 9 The elastic locking structure 3C includes a locking element 3D, a pin 3E, and a torsion spring 3F. The locking element 3D is pivotally connected to the first linkage engagement 3B via the pin 3E, allowing the locking element 3D to move between a locked position and an unlocked position. The locking element 3D has a semi-closed circular hole-shaped locking groove M2 and a controlled part K. Figure 4 From a front-to-back view of the chair frame, the controlled part K can be seen. Controlled part K has a connection hole for easy connection with a hook tool. The user can connect the hook tool to the connection hole of controlled part K and pull it, thereby controlling the locking member 3D to move from the locked position to the unlocked position. When the locking member 3D moves from the locked position to the unlocked position, one side of the locking groove M2 moves relative to the pivot groove M1, creating a channel for the pin L to enter and exit the pivot groove M1. The torsion spring 3F is sleeved on the pin 3E, and its two torsion arms abut against the first linkage joint 3B and the locking member 3D respectively. The torsion spring 3F applies an elastic force to the locking member 3D, maintaining its tendency to move from the unlocked position to the locked position.

[0029] [Leg Support] The leg support 4 is used to support the user's lower limbs and is mounted on the front side of the seat support 2 in a flip-up configuration. In this embodiment, the leg support 4 is generally flat and plate-shaped, but is not limited to it; for example, it can be adjusted to a mountain-shaped structure. The leg support 4 can also be designed to include a leg rest and a foot rest, which can be designed to move relative to each other to accommodate the massage needs of users with different leg lengths.

[0030] [Drive Mechanism] The drive mechanism 5 provides the driving force required for the chair frame to change different postures. In this embodiment, the drive mechanism 5 includes a telescopic push rod. The drive end of the telescopic push rod is pivotally connected to the front side of the base frame 1, while the telescopic rod end is pivotally connected to the linkage mechanism 6. Specifically, it is pivotally connected to the first end of the drive-side connecting rod 6A of the linkage mechanism 6.

[0031] [Linking Mechanism] The linking mechanism 6 can convert the driving force of the drive mechanism 5 into a flipping force that drives the back support 3 and the leg support 4 to flip synchronously. Specifically, in this embodiment, the linking mechanism 6 is arranged in the middle position of the base frame 1 in the left-right direction, and it includes a drive side link 6A, a back support link 6B and a leg support link 6C.

[0032] The first end of the drive-side connecting rod 6A is pivotally connected to the drive mechanism 5 and is driven by it to move in the front-rear direction. The first end of the drive-side connecting rod 6A also slides in the first sliding groove S1 to ensure that the first end of the drive-side connecting rod 6A can slide relatively smoothly back and forth. The second end of the drive-side connecting rod 6A is pivotally connected to the middle part of the back support connecting rod 6B. The middle part of the drive-side connecting rod 6A slides in the second sliding groove S2 to achieve sliding engagement with the base frame 1.

[0033] The first end of the back support link 6B is pivotally connected to the first linkage joint 3B in a separable manner, and is also pivotally connected to the linkage state retainer 7. The second end of the back support link 6B is pivotally connected to the middle part of the leg support link 6C.

[0034] The first end of the leg support link 6C is pivotally connected to the seat support 2, and the second end is slidably engaged with the lower side of the leg support 4. In this embodiment, the second end of the leg support link 6C is provided with a roller Q, which abuts against the lower side of the leg support 4 and is slidably engaged with it. However, the specific manner of the sliding engagement is not limited to this; for example, the roller Q can be adjusted to be a slider.

[0035] [Linkage Holder] The linkage holder 7 is capable of holding the linkage mechanism 6 in the state before the back support 3 was separated when the back support 3 is separated. Specifically, the linkage holder 7 has a second rotation engagement portion 7A and a second linkage engagement portion 7B.

[0036] The second rotating joint 7A is pivotally connected to the seat bracket 2, and is engaged. Figures 6 to 8 In this embodiment, the second rotating joint 7A is pivotally connected to the base bracket 2 via the sliding joint 2A on the rearmost side of the base bracket 2, which makes the rotation axis of the second rotating joint 7A coincide with the sliding axis of the base bracket 2 relative to the sliding groove S3 of the base bracket located on the rearmost side, and the second rotating joint 7A can also slide relative to the base frame 1.

[0037] The second linkage joint 7B is pivotally connected to the linkage mechanism 6. Specifically, the second linkage joint 7B is pivotally connected to the first end of the back support link 6B. In this embodiment, the rotation axis of the first linkage joint 3B and the rotation axis of the second linkage joint 7B coincide, both being the central axis of the pin L.

[0038] The aforementioned chair frame has a drive mechanism that can drive the back support and leg support to rotate synchronously through a linkage mechanism. The linkage holding frame can hold the linkage mechanism in the state before the back support is separated. The chair frame of this application not only ensures that the back support and leg support can rotate synchronously, but also takes into account the quick-release function of the back support.

[0039] [Modified Embodiments] The above is a detailed description of a chair frame according to an embodiment of this application. However, it should be understood that the technical concept of this application is not limited thereto, and there are other modified embodiments. In another embodiment, the back support 3 can be mounted on the base frame 1 in a way that allows it to flip up and down, that is, the first rotating joint 3A of the back support 3 can be adjusted to be detachably pivotally connected to the base frame 1. In another embodiment, the seat support 2 can be adjusted so that it cannot move relative to the base frame 1. In another embodiment, the second rotating joint 7A of the linkage retainer 7 can be pivotally connected to the base frame 1. In another embodiment, the drive mechanism 5 can be adjusted to a slider push rod or other drive mechanism. In another embodiment, the first sliding groove S1 can be omitted. The linkage mechanism 6 controls the seat support 2, back support 3, and leg support 4 to move synchronously. This technical point is not limited to being applied to the chair frame at the same time as the linkage retainer 7. That is, in another embodiment, the chair frame may not include the linkage retainer 7 (i.e., as shown in the image). Figure 13 The chair frame shown can be further designed to be non-separable, and the back support 3 can also be designed to be non-separable.

[0040] [Massage Chair] When the aforementioned chair frame is applied to a massage chair, at least one of the seat, backrest, and leg rest may be equipped with a massage structure. Combined with... Figure 11 and Figure 12 In a specific design of a massage chair, the massage chair includes the aforementioned chair frame. The seat support 2 of the chair frame is equipped with a seat support massage mechanism P1, and the back support 3 is equipped with a back support massage mechanism P2. Both the seat support massage mechanism P1 and the back support massage mechanism P2 can include a massage mechanism and a guide rail for the massage mechanism to move. In order to facilitate the overall assembly and disassembly of the back support and the back support massage mechanism P2, a hand gripping part P21 is provided on the shell of the back support massage mechanism P2 to facilitate the user's hand gripping for assembly and disassembly of the back support and the back support massage mechanism P2.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A massage chair, comprising: Base frame (1); A seat bracket (2) is mounted on the base frame (1); The back support (3) is mounted on the seat support (2) or the base frame (1) in a flip-up manner; A leg support (4) is mounted on the front side of the seat support (2) in a flip-up configuration; Drive mechanism (5); The linkage mechanism (6) transforms the driving force of the drive mechanism (5) into a flipping force that drives the back support (3) and the leg support (4) to flip synchronously. Its features are, in, The linkage mechanism (6) is located in the middle of the base frame (1) in the left-right direction, and it includes a drive side link (6A), a back support link (6B) and a leg support link (6C). The first end of the drive side link (6A) is pivotally connected to the drive mechanism (5) and driven by it to move in the front and rear direction, and the second end is pivotally connected to the middle part of the back support link (6B), and the middle part slides with the base frame (1). Wherein, the first end of the back support link (6B) is pivotally connected to the back support (3), and the second end is pivotally connected to the middle part of the leg support link (6C); The first end of the leg support link (6C) is pivotally connected to the seat support (2), and the second end is slidably engaged with the lower side of the leg support (4).

2. The massage chair according to claim 1, characterized in that, The seat bracket (2) is slidably mounted on the base frame (1).

3. The massage chair according to claim 2, characterized in that, The base frame (1) has multiple sets of seat bracket sliding grooves (S3, S4, S5) spaced apart from back to front, and the seat bracket (2) slides in cooperation with the multiple sets of seat bracket sliding grooves.

4. The massage chair according to claim 3, characterized in that, The angle of the sliding groove of the multiple sets of seat brackets tilting backward gradually decreases from back to front.

5. The massage chair according to any one of claims 1 to 4, characterized in that, The base frame (1) has a first sliding groove (S1) arranged in front and behind, and the first end of the drive side connecting rod (6A) slides in cooperation with the first sliding groove (S1).

6. The massage chair according to any one of claims 1 to 4, characterized in that, The base frame (1) has a second sliding groove (S2), which has a transverse sliding section (S21) arranged front and rear, and an arc-shaped sliding section (S22) that gradually slopes upward from back to front. The transverse sliding section (S21) is located on the rear side of the arc-shaped sliding section (S22). The middle part of the drive-side connecting rod (6A) slides in conjunction with the second sliding groove (S2).

7. The massage chair according to claim 1, characterized in that, The drive mechanism (5) includes a telescopic push rod, the drive end of which is pivotally connected to the front side of the base frame (1), while the telescopic rod end is pivotally connected to the first end of the drive-side connecting rod (6A).

8. The massage chair according to claim 1, characterized in that, The second end of the leg support connecting rod (6C) is provided with a roller (Q) or a slider, which abuts against the lower side of the leg support (4) and slides with it.

9. The massage chair according to claim 1, characterized in that, The back support is equipped with a massage structure.

10. The massage chair according to claim 1, characterized in that, The seat support is equipped with a massage structure.

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