A massage chair with multi-angle adjustable back

Abstract

The present invention relates to the technical field of massage chairs, and specifically to a massage chair with a backrest that can be adjusted at multiple angles, comprising a chair back, a spine board fixedly connected to the top of the chair back, a back pad installed at the rear end of the spine board, a linkage plate installed at the top of the chair back, an adjustment plate that can slide up and down connected to the surface of the linkage plate, an upper fixed plate installed at the top of the adjustment plate, an upper air bag installed at the top of the back pad, the top of the upper air bag is fixedly connected to the upper fixed plate, a first inflation mechanism for inflating and deflation of the upper air bag is installed on the surface of the spine board, and also comprises a seat, side panels are installed on the left and right sides of the seat, and the chair back is rotatably connected between the two side panels. The purpose of the present invention is to solve the problem that each person's upper body length is different and the back of the massage chair needs to be adjustable at multiple angles to accommodate users of different heights.

Description

Technical Field

[0001] The invention relates to the technical field of massage chairs, in particular to a massage chair with a backrest that can be adjusted at multiple angles. Background Art

[0002] The massage chair uses mechanical rolling force and mechanical force to perform massage. The core components of the massage chair mainly include the mainboard, movement, guide rail, motor, material, etc. The mainboard can be said to be the brain of the massage chair, which is used to control the massage chair program, power supply, and air pressure valve motor. The mainboard transmits commands through the hand controller of the massage chair, and receives and issues instructions to the massage mechanism of the chair to perform massage movements. It is one of the important components. The movement of the massage chair is a device that matches the manipulator and controls the motor of the manipulator. It can walk freely on the guide rail and perform manipulator massage on the back and buttocks of the human body according to the length of the guide rail. The guide rail is the main mechanism of the massage chair, matched with the movement manipulator and most of the internal main components, which is the overall skeleton of the massage chair. The main function of the motor is to generate driving torque as a mechanical power source. Its main function is to convert electrical energy into mechanical energy, and it is also an important driving force to support the operation of the manipulator massage function.

[0003] Since each person's upper body length is different, different users lean on the back of the massage chair in different positions. For example, people with long upper bodies usually need a longer chair back, and people with short upper bodies usually need a shorter chair back, which will be more comfortable to lean on. For this reason, it is necessary to design a massage chair with a multi-angle adjustable back to accommodate users of different heights. Summary of the invention

[0004] The purpose of the present invention is to provide a massage chair with a multi-angle adjustable back to solve the problem that the upper body lengths of each person are different and the back of the massage chair needs to be adjustable at multiple angles to accommodate users of different heights.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A massage chair with a backrest that is adjustable at multiple angles comprises a chair back, a spine board fixedly connected to the top of the chair back, a back pad installed at the rear end of the spine board, a linkage plate installed at the top of the chair back, a positioning plate that can slide up and down connected to the surface of the linkage plate, an upper fixed plate installed at the top of the positioning plate, an upper airbag installed at the top of the back pad, the top of the upper airbag is fixedly connected to the upper fixed plate, and a first inflation mechanism for inflating and deflation of the upper airbag is installed on the surface of the spine board.

[0007] Preferably, it also includes a seat, and the left and right sides of the seat are both equipped with chair side panels, and the chair back is rotatably connected between the two chair side panels.

[0008] Preferably, a support assembly is installed at the front end of the spine board, and the support assembly is used to prevent the chair back from rotating downward.

[0009] Preferably, the number of the linkage plates is two, and the two linkage plates are distributed on both sides of the spine plate. The number of the adjustment plates is two, and the two adjustment plates are respectively located on two linkage plates.

[0010] Preferably, the two adjustment plates are connected to the upper fixed plate in a left-right sliding manner, side fixing plates are installed on opposite surfaces of the two adjustment plates, and the two adjustment plates are connected to their corresponding side fixing plates in an up-and-down sliding manner, side airbags are installed on the left and right sides of the back cushion plate, and the opposite surfaces of the two side airbags are respectively fixedly connected to a side fixing plate, and a second inflation mechanism for inflating and deflation of the side fixing plates is installed on the surface of the chair back.

[0011] Preferably, two fourth T-shaped slides are fixedly connected to the top of the chair back, and the two fourth T-shaped slides correspond one-to-one to the two linkage plates, and the lower end surfaces of the two linkage plates are both provided with fourth T-shaped slide grooves for the fourth T-shaped slides to slide left and right.

[0012] Preferably, a length is reserved at the top end of the two side airbags, and the length reserved at the top end of the side airbag is greater than the height increased by the inflation of the upper airbag.

[0013] Preferably, the front end of the chair back is fixedly connected to a connecting piece, the surface of the connecting piece is rotatably connected to an adjustment plate, the bottom end of the adjustment plate is rotatably connected to a pulley, a first motor is fixedly installed on the surface of the adjustment plate, and the output end of the first motor is coaxially fixedly connected to the pulley.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By setting the adjustment plate, the upper fixing plate and the upper airbag, when the user needs to adjust the length of the back of the massage chair, the first inflation mechanism can be activated to inflate the upper airbag to make the upper airbag swell. When the upper airbag swells, it will push the upper fixing plate to move upward, and the movement of the upper fixing plate drives the adjustment plate to move upward, so that the length of the back of the massage chair can be increased according to the height of the user;

[0016] 2. By setting the adjustment plate, the side fixing plate and the side airbag, when the user needs to adjust the width of the back of the massage chair, the second inflation mechanism can be activated to inflate the side airbag to make the side airbag swell. When the side airbag swells, it will pull the side fixing plate to move sideways. The movement of the side fixing plate drives the adjustment plate to move sideways, so that the width of the back of the massage chair can be increased according to the shoulder width of the user;

[0017] 3. By setting up upper airbags and side airbags and inflating and deflating the upper airbags and side airbags, the adjustment plate is driven to move, so as to achieve the purpose of adjusting the back of the massage chair at multiple angles. It is beneficial that when the back becomes longer, there are airbags for the user to cushion the longer or wider parts, and there will be no situation where there is no airbag for the user to cushion due to the adjustment of the back. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a rendering of the first state of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the vertical section of the support assembly of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the connection between the chair seat and the chair side panels of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the connection between the chair back, spine board, linkage board and upper air bag of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the connection between the adjustment plate and the upper fixing plate of the present invention;

[0023] Figure 6 This is a rendering of the second state of the present invention;

[0024] Figure 7 It is a schematic diagram of a partial vertical section structure of the second state of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the linkage plate of the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the upper fixing plate and the side fixing plate in vertical section of the present invention;

[0027] Fig.10 It is a schematic diagram of the vertical section structure of the chair back of the present invention;

[0028] Fig.11 This is an effect diagram of the chair side panel of the present invention being unfolded.

[0029] In the figure: 1. Seat; 2. Side panels; 3. Extension board; 4. T-shaped shaft; 5. T-shaped circular groove; 6. Chair back; 7. Connector; 8. Adjustment plate; 9. Pulley; 10. First motor; 11. Spine board; 12. Second motor; 13. Square rod; 14. Threaded push rod; 15. Guide rod; 16. Fourth T-shaped slide plate; 17. Linkage plate; 18. First T-shaped slide plate; 19. First T-shaped slide groove; 20. Adjustment plate; 21. Upper fixing plate; 22. Upper airbag; 23. First air pump; 24. Third T-shaped slider; 25. Second T-shaped slide groove; 26. Second T-shaped slider; 27. Side fixing plate; 28. Second air pump; 29. ​​Side airbag; 30. Back pad; 31. Auxiliary airbag; 32. Cushion plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] See also Figures 1 to 5 , the present invention provides a technical solution.

[0033] A massage chair with a back that can be adjusted at multiple angles, comprising a chair back 6, a spine board 11 being fixedly connected to the top of the chair back 6, a back pad 30 being installed at the rear end of the spine board 11, a linkage plate 17 being installed at the top of the chair back 6, a position adjustment plate 20 that can slide up and down being connected to the surface of the linkage plate 17, an upper fixed plate 21 being installed at the top of the position adjustment plate 20, an upper air bag 22 being installed at the top of the back pad 30, the top of the upper air bag 22 being fixedly connected to the upper fixed plate 21, a first inflation mechanism for inflating and deflation of the upper air bag 22 being installed on the surface of the spine board 11, two linkage plates 17 being arranged on the spine board By arranging the adjustment plate 20, the upper fixing plate 21 and the upper airbag 22 on both sides of the massage chair 11, when a tall person uses it, the first inflation mechanism can be activated to inflate the upper airbag 22 to make the upper airbag 22 swell up. When the upper airbag 22 swells up, it will push the upper fixing plate 21 to move upward, and the movement of the upper fixing plate 21 drives the adjustment plate 20 to move upward, so that the length of the back of the massage chair can be increased according to the height of the user. Through such a design, when the back becomes longer, the longer part also has airbags for the user to cushion, and there will be no situation where there is no airbag for the user to cushion due to the longer back.

[0034] The first inflation mechanism includes a first inflation pump 23 and a first inflation tube. The first inflation tube connects the first inflation pump 23 with the internal space of the upper airbag 22. The upper airbag 22 is inflated or deflated by starting the first inflation pump 23 to blow air or inhale air. A certain length of the first inflation tube is reserved when the upper airbag 22 is set, so that the length of the first inflation tube is sufficient when the upper airbag 22 is inflated or deflated.

[0035] According to the need, multiple upper airbags 22 that are fixedly connected to each other can be stacked and arranged, and then the upper fixing plate 21 is fixedly connected to the uppermost upper airbag 22, and the multiple upper airbags 22 are inflated and deflated separately. The technology of inflating and deflation of the multiple upper airbags 22 separately can adopt conventional technical means of the prior art. For example, each upper airbag 22 is respectively equipped with a first inflation mechanism to inflate and deflate it. By arranging multiple upper airbags 22, it is beneficial to increase the range of adjustment of the length of the massage chair;

[0036] Please refer to the pulley 9 in Figure. The massage mechanism is installed in the back pad 30, and the electronic components such as the motor that controls the massage mechanism are installed on the spine plate 11. The massage mechanism can adopt existing technical means, for example, by driving the motor to control the rotation of the left massage head and the right massage head to achieve massage.

[0037] In the embodiment where the positioning plate 20 slides up and down on the linkage plate 17, the front end of the linkage plate 17 is fixedly connected with a first T-shaped slide plate 18, and the rear end of the positioning plate 20 is provided with a first T-shaped slide groove 19 for the first T-shaped slide plate 18 to slide up and down.

[0038] The utility model also includes a seat 1, and side panels 2 are installed on the left and right sides of the seat 1. The backrest 6 is rotatably connected between the two side panels 2. A support component is installed at the front end of the spine plate 11. The support component is used to prevent the backrest 6 from rotating downward. The backrest 6 is rotatably connected with the two side panels 2, and the inclination angle of the backrest 6 can be adjusted, which is convenient for the user to adjust the inclination angle of the back of the massage chair according to himself. By setting the support component, the backrest 6 can be supported to prevent the backrest 6 from continuing to rotate downward.

[0039] The support assembly includes a square rod 13, a threaded push rod 14 and a guide rod 15. The upper end of the guide rod 15 is fixedly installed on the surface of the spine board 11, and there is an angle between the guide rod 15 and the spine board 11, and the downward angle between the guide rod 15 and the spine board 11 is an acute angle. The threaded push rod 14 is coaxially slidably connected and sleeved on the surface of the square rod 13. The guide rod 15 is coaxially threadedly connected and sleeved on the surface of the threaded push rod 14. The threaded push rod 14 penetrates the lower end of the guide rod 15. By rotating the square rod 13, the threaded push rod 14 is driven to rotate. The threaded push rod 14 rotates so that the threaded push rod 14 extends from the lower end of the guide rod 15 until the lower end of the threaded push rod 14 contacts the ground or an object, so that the spine board 11 can be supported, so that the spine board 11 cannot be rotated downward, and the chair back 6 cannot be rotated downward.

[0040] In the implementation method of driving the square rod 13 to rotate, a second motor 12 is fixedly mounted on the upper end of the guide rod 15, and an output end of the second motor 12 is coaxially fixedly connected to the top end of the square rod 13. By starting the second motor 12, the square rod 13 is driven to rotate.

[0041] The front end of the chair back 6 is fixedly connected with a connecting piece 7, and the surface of the connecting piece 7 is rotatably connected with an adjusting plate 8, and the bottom end of the adjusting plate 8 is rotatably connected with a pulley 9. A first motor 10 is fixedly installed on the surface of the adjusting plate 8, and the output end of the first motor 10 is coaxially fixedly connected with the pulley 9. By starting the first motor 10, the pulley 9 is driven to rotate, and the pulley 9 can rotate and roll forward and backward, pulling the adjusting plate 8, so that the adjusting plate 8 and the connecting piece 7 rotate, and the chair back 6 rotates, so that the chair back 6 and the chair side plate 2 rotate, that is, the pulley 9 rolls forward, which will pull the chair back 6 to rotate downward, and the pulley 9 rolls backward, which will push the chair back 6 to rotate upward, thereby realizing automatic control, which is conducive to the convenience of the user in adjusting the inclination angle of the massage chair back according to his own needs, and is convenient for operation. Among them, when the lower end of the threaded push rod 14 contacts with the adjusting plate 8, it will support the chair back 6 and prevent the chair back 6 from continuing to rotate downward.

[0042] The specific scheme is as follows: first, the inclination angle of the back of the massage chair is adjusted, and the first motor 10 is started to drive the pulley 9 to roll and move the pulley 9 forward, and the adjustment plate 8 is pulled to rotate between the adjustment plate 8 and the connecting member 7, and the chair back 6 is pulled to rotate between the chair back 6 and the chair side plate 2. The rotation of the chair back 6 drives the spine plate 11, the adjustment plate 20 and the back pad 30 to rotate together, thereby changing the inclination angle of the back of the massage chair. By stopping the first motor 10, the rotation of the chair back 6 is stopped, and then the second motor 12 is started to drive the square rod 13 to rotate. The rotation of the square rod 13 drives the threaded push rod 14 to rotate. The rotation of the threaded push rod 14 will cause itself to extend from the lower end of the guide rod 15 until the threaded push rod 14 abuts against the surface of the adjustment plate 8, thereby limiting the chair back 6 from continuing to rotate downward;

[0043] Then adjust the length of the back of the massage chair by starting the first air pump 23 and blowing air into the upper airbag 22 to make the upper airbag 22 bulge. The bulging upper airbag 22 will push the upper fixing plate 21 to move upward, and the upward movement of the upper fixing plate 21 will pull the adjusting plate 20 to move upward, thereby increasing the length of the back of the massage chair. When more upper airbags 22 are blown and made to bulge, the length of the back of the massage chair will be further increased.

[0044] Example 2

[0045] Based on Example 1, when encountering users with different shoulder widths, it is necessary to adjust the width of the massage chair back. Please refer to Figures 6 to 9 , the present invention provides a technical solution.

[0046] The two adjustment plates 20 are connected to the upper fixing plate 21 for left and right sliding, the opposite surfaces of the two adjustment plates 20 are installed with side fixing plates 27, and the two adjustment plates 20 are connected to the corresponding side fixing plates 27 for up and down sliding, the left and right sides of the back pad 30 are installed with side airbags 29, the opposite sides of the two side airbags 29 are respectively fixedly connected to a side fixing plate 27, and the surface of the chair back 6 is installed with a second inflation mechanism for inflating and deflation of the side fixing plates 27. By setting the adjustment plates 20, the side fixing plates 27 and the side airbags 29, when a person with wide shoulders uses it, the second inflation mechanism can be activated to inflate the side airbags. The airbag 29 is inflated to make the side airbag 29 swell up. When the side airbag 29 swells up, it will pull the side fixing plate 27 to move sideways. Due to the connection relationship, it is ensured that the side fixing plate 27 on the left side will move to the left, and the side fixing plate 27 on the right side will move to the right. The movement of the side fixing plate 27 drives the adjustment plate 20 to move sideways, and the width of the back of the massage chair can be increased according to the shoulder width of the user. Through such a design, when the back becomes wider, the widened part also has airbags for the user to cushion, and there will be no situation where there is no airbag for the user to cushion due to the widening of the back.

[0047] The second inflation mechanism includes a second inflation pump 28 and a second inflation pipe. The second inflation pipe connects the second inflation pump 28 with the inner space of the side airbag 29. By starting the second inflation pump 28 to blow or inhale, the side airbag 29 is inflated or deflated. A certain length of the second inflation pipe is reserved when the side airbag 29 is set, so that the length of the second inflation pipe is sufficient when the side airbag 29 is inflated or deflated.

[0048] When adjusting the length of the back of the massage chair, the adjustment plate 20 and the side fixing plate 27 need to be able to slide. In the embodiment where the adjustment plate 20 slides up and down on the side fixing plate 27, the opposite surfaces of the two side fixing plates 27 are fixedly connected with the second T-shaped slider 26, and the opposite surfaces of the two adjustment plates 20 are matched with the second T-shaped slide groove 25 for the second T-shaped slider 26 to slide up and down;

[0049] When adjusting the width of the back of the massage chair, the adjustment plate 20 and the upper fixed plate 21 need to be able to slide. In the implementation mode where the adjustment plate 20 slides left and right on the upper fixed plate 21, a third T-shaped slider 24 is fixedly connected to the lower end of the upper fixed plate 21, and the upper surfaces of the two adjustment plates 20 are both provided with a third T-shaped groove for the third T-shaped slider 24 to slide left and right.

[0050] When adjusting the width of the back of the massage chair, the linkage plate 17 needs to be translated together with the adjustment plate 20. The way of translation of the linkage plate 17 is that two fourth T-shaped slide plates 16 are fixedly connected to the top of the chair back 6, and the two fourth T-shaped slide plates 16 correspond one to one with the two linkage plates 17. The lower end surfaces of the two linkage plates 17 are both provided with fourth T-shaped slide grooves for the fourth T-shaped slide plates 16 to slide left and right. By setting the linkage plate 17 to slide along the surface of the fourth T-shaped slide plate 16, it is ensured that when the adjustment plate 20 moves up and down, the linkage plate 17 will not move with it, and it is also ensured that when the adjustment plate 20 moves left and right, the linkage plate 17 can move with it.

[0051] The top ends of the two side airbags 29 are reserved with a length. For the explanation of the top ends of the opposite side airbags 29 being reserved with a length, please refer to Fig. 9 There are multiple parts at the top of the side airbag 29 that are not in contact with the side fixing plate 27, which is a length reserved for the top of the side airbag 29. The length reserved for the top of the side airbag 29 is greater than the height increased by the inflation of the upper airbag 22. Through such an arrangement, when the width is adjusted after the length of the massage chair is extended, there will be no situation where there is no airbag cushioning in the upper left corner and the upper right corner.

[0052] The specific solution of this invention is as follows: when adjusting the width of the back of the massage chair, the second air pump 28 is started to blow air into the side airbags 29, so that the side airbags 29 swell up. The swelled side airbags 29 will push the side fixing plates 27 to move sideways. The side fixing plates 27 moving sideways will pull the adjusting plates 20 to move sideways, thereby increasing the width of the back of the massage chair.

[0053] Please refer to Figure 10 to Figure 11 A cushion plate 32 is installed on the top of the seat 1, and auxiliary air bags 31 are fixedly installed on the left and right sides of the cushion plate 32. A third inflation mechanism for inflating and deflation of the auxiliary air bags 31 is installed on the surface of the seat 1. The opposite sides of the two chair side panels 2 are fixedly connected with extension plates 3. The left and right sides of the seat 1 are equipped with adjustment slide grooves for the extension plates 3 to slide left and right. The opposite sides of the two chair side panels 2 are fixedly connected with T-shaped shafts 4. The left and right sides of the chair back 6 are equipped with T-shaped circular grooves 5 for the T-shaped shaft 4 to move left and right. The chair back 6 rotates with the T-shaped shaft 4 as the axis. By starting the third inflation mechanism to inflate the auxiliary air bags 31, the chair side panels 2 are pushed to move sideways. The movement of the chair side panels 2 drives the T-shaped shaft 4 to move along the track of the T-shaped circular groove 5, so that the base of the massage chair can also adjust the width according to the user, and can be used in conjunction with the adjustment of the width of the massage chair back.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A massage chair with a backrest that can be adjusted at multiple angles, comprising a chair back (6), characterized in that: The top of the chair back (6) is fixedly connected to a spine plate (11), a back pad (30) is installed at the rear end of the spine plate (11), a linkage plate (17) is installed at the top of the chair back (6), a positioning plate (20) that can slide up and down is connected to the surface of the linkage plate (17), an upper fixing plate (21) is installed at the top of the positioning plate (20), an upper air bag (22) is installed at the top of the back pad (30), the top of the upper air bag (22) is fixedly connected to the upper fixing plate (21), and a first inflation mechanism for inflating and deflation of the upper air bag (22) is installed on the surface of the spine plate (11); The number of the linkage plates (17) is two, and the two linkage plates (17) are distributed on both sides of the ridge plate (11); the number of the adjustment plates (20) is two, and the two adjustment plates (20) are respectively located on the two linkage plates (17); The two adjustment plates (20) are connected to the upper fixing plate (21) in a left-right sliding manner, the opposite surfaces of the two adjustment plates (20) are each installed with a side fixing plate (27), and the two adjustment plates (20) are connected to the corresponding side fixing plates (27) in an up-down sliding manner, the left and right sides of the back pad (30) are each installed with a side airbag (29), the opposite sides of the two side airbags (29) are respectively fixedly connected to a side fixing plate (27), and the surface of the chair back (6) is installed with a second inflation mechanism for inflating and deflation of the side fixing plate (27).

2. The massage chair with multi-angle adjustable back according to claim 1, characterized in that: It also comprises a seat (1), wherein both left and right sides of the seat (1) are provided with seat side panels (2), and the seat back (6) is rotatably connected between the two seat side panels (2).

3. The massage chair with multi-angle adjustable back according to claim 2, characterized in that: A support component is installed at the front end of the spine plate (11), and the support component is used to prevent the chair back (6) from rotating downward.

4. The massage chair with multi-angle adjustable back according to claim 1, characterized in that: Two fourth T-shaped slide plates (16) are fixedly connected to the top of the chair back (6), and the two fourth T-shaped slide plates (16) correspond to the two linkage plates (17) one by one, and the lower end surfaces of the two linkage plates (17) are both provided with fourth T-shaped slide grooves for the fourth T-shaped slide plates (16) to slide left and right.

5. The massage chair with multi-angle adjustable back according to claim 4, characterized in that: A length is reserved at the top of each of the two side airbags (29), and the length reserved at the top of the side airbag (29) is greater than the height increased by the inflation of the upper airbag (22).

6. The massage chair with multi-angle adjustable back according to claim 1, characterized in that: The front end of the chair back (6) is fixedly connected to a connecting piece (7), the surface of the connecting piece (7) is rotatably connected to an adjusting plate (8), the bottom end of the adjusting plate (8) is rotatably connected to a pulley (9), a first motor (10) is fixedly mounted on the surface of the adjusting plate (8), and the output end of the first motor (10) is coaxially fixedly connected to the pulley (9).

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