Flexible chair frame structure and massage chair

Abstract

The utility model discloses a flexible chair frame structure which comprises a base, a first frame body and a second frame body, a first movement direction guide rail and a second movement direction guide rail are arranged on the base, the first frame body is arranged on the first movement direction guide rail in a sliding mode, and the second frame body is arranged on the second movement direction guide rail. The device further comprises a first flexible connecting steel sheet, a second flexible connecting steel sheet and a rack, the two ends of the second flexible connecting steel sheet are fixed to the first frame body and the second frame body respectively, one end of the first flexible connecting steel sheet is fixed to the first frame body, a limiting column is arranged on the second frame body, and the rack is arranged on the limiting column. A limiting sliding way is arranged at the other end of the first flexible connecting steel sheet, the limiting column and the limiting sliding way are matched together in a sliding mode, and a second soft cushion is arranged on the second flexible connecting steel sheet. The utility model further discloses a massage chair using the flexible chair frame structure.

Description

Technical Field

[0001] The utility model relates to the field of massage chairs, in particular to a flexible chair frame structure and a massage chair. Background Art

[0002] Flexible guide rail massage chair is a commonly used massage chair. The structure of the current flexible guide rail massage chair is shown in patent publication document CN210991552U. There is a problem in the actual use of massage chairs with this structure, that is, each long rack in the massage chair with this structure is composed of three independent short racks, that is, as shown in Figure 10 of the document, a short rack is arranged on the middle frame, and a short rack is independently arranged on both sides of each short rack. In this structure, since there is a gap between the short racks, the gear is prone to tooth jumping when it runs between the two short racks. Utility Model Content

[0003] In view of the above problems, the utility model proposes a flexible chair frame structure.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A flexible chair frame structure includes a base, a first frame and a second frame, the base is provided with a first motion guide rail and a second motion guide rail, the first frame is slidably arranged on the first motion guide rail, and the second frame is arranged on the second motion guide rail. It also includes a first flexible connecting steel sheet, a second flexible connecting steel sheet and a rack, the two ends of the second flexible connecting steel sheet are respectively fixed to the first frame and the second frame, one end of the first flexible connecting steel sheet is fixed to the first frame, a limiting column is provided on the second frame, and a limiting slide is provided on the other end of the first flexible connecting steel sheet, the limiting column and the limiting slide are slidably matched together, a second soft pad is provided on the second flexible connecting steel sheet, the rack is a continuous and uninterrupted rack, the rack is arranged on the first frame, the second frame and the second soft pad, and the second flexible connecting steel sheet and the second soft pad are always in an arc shape.

[0006] In this chair frame structure, the first frame and the second frame are connected by means of a first flexible connecting steel sheet, a second flexible connecting steel sheet, a first cushion and a second cushion, thereby realizing a flexible connection between the first frame and the second frame. Since the first flexible connecting steel sheet and the second flexible connecting steel sheet are both made of 65 manganese steel, the first flexible connecting steel sheet and the second flexible connecting steel sheet both have a certain degree of bendable flexibility. In this way, when the second frame is bent relative to the first frame, the first flexible connecting steel sheet and the second flexible connecting steel sheet can bend, thereby allowing the first flexible connecting steel sheet and the second flexible connecting steel sheet to undergo adaptive twisting deformation.

[0007] In this structure, since a complete rack is laid on the first frame, the second frame and the second cushion, the integrity of the rack can ensure that the gear remains stable when running between the first frame, the second cushion and the second frame, and there will be no tooth jumping.

[0008] In this structure, since the second frame is provided with a limiting column, the first flexible connecting steel sheet is provided with a limiting slideway, and the limiting slideway and the limiting column are slidably matched together, and the two ends of the second flexible connecting steel sheet are fixed together with the first frame and the second frame, when in use, the first flexible connecting steel sheet is located at the top, and the second flexible connecting steel sheet is located at the bottom, so when the second frame rotates relative to the first frame, the limiting column will slide in the limiting slideway, and the existence of the limiting column and the limiting slideway can ensure that when the second frame rotates relative to the first frame, the first frame can remain stable, and ensure that the first frame and the second frame are located in a straight line. Ensure the stability of the entire chair frame structure.

[0009] In this structure, in order to stably place the rack, the first frame and the second frame are both in a half-mouth shape, that is, the first frame and the second frame have grooves, and the grooves are in a half-mouth shape. The rack is located in the grooves of the first frame and the second frame. The presence of the grooves can protect the rack.

[0010] Optionally, it also includes a first soft pad, which is tightly fitted with a first flexible connecting steel sheet, and a synchronous slide is provided on the first soft pad, and the synchronous slide coincides with the limiting slide, and the limiting column and the synchronous slide are slidably fitted together.

[0011] A synchronous slideway overlapping with the limiting slideway is provided on the first soft pad. The existence of the synchronous slideway enables the first soft pad and the first flexible connecting steel sheet to slide relative to the limiting slide column, so that the second frame can be kept stable to the greatest extent when rotating relative to the first frame.

[0012] Optionally, a connecting pad is further included, wherein two ends of the connecting pad are respectively matched with the first pad and the second pad, and the connecting pad is integrally formed with the first pad and the second pad.

[0013] Specifically, the first soft pad, the second soft pad and the connecting soft pad together form a flexible connecting plate, and the flexible connecting plate is used to flexibly connect the first frame and the second frame, and the first flexible connecting steel sheet and the second flexible connecting steel sheet on both sides of the flexible connecting frame are used to increase the rigidity of the connecting plate. At the same time, in order to adapt to the shapes of the first frame and the second frame, the connecting plate is also a half-mouth-shaped connecting plate, and the half-mouth-shaped connecting plate also has a half-mouth-shaped groove, and the rack is located in the groove.

[0014] By means of the first flexible connecting steel sheet, the second flexible connecting steel sheet and the connecting plate, the first frame and the second frame are flexibly and fixedly connected, and the first frame and the second frame can rotate relative to each other.

[0015] Optionally, a first roller is disposed on the first frame, and a second roller is disposed on the second frame. The first roller is slidably matched with the first motion guide rail, and the second roller is slidably matched with the second motion guide rail.

[0016] The first roller is used to ensure that the first frame can slide on the first motion guide rail, and the second roller is used to ensure that the second frame can slide on the second motion guide rail. Specifically, the first roller is a first roller made of plastic, and the second roller is a second roller made of plastic.

[0017] Optionally, there are two first frames, the two first frames are in parallel, and the two first frames are fixed together by a first connecting frame; there are two second frames, the two second frames are in parallel, and the two second frames are fixed together by a second connecting frame.

[0018] Specifically, the function of the first connecting frame is to connect and fix the two first frames, and the function of the second connecting frame is to connect and fix the two second frames. Both the first frame and the second frame are U-shaped, and there are multiple first frames and multiple second frames. The first frames are in a parallel state, and the second frames are in a parallel state.

[0019] Optionally, it also includes an auxiliary plate, which is a Z-shaped auxiliary plate, one end of which is fixed to the second frame, the two ends of the limiting column are respectively matched with the second frame and the auxiliary plate, and the first soft pad and the first flexible connecting steel plate are located between the second frame and the auxiliary plate.

[0020] The purpose of setting the Z-shaped auxiliary plate is to install the limiting column, a part of the limiting column is located between the auxiliary plate and the second frame, and the first soft pad and the first flexible connecting steel plate are mounted on the limiting column, and the first soft pad and the first flexible connecting steel plate are located between the auxiliary plate and the second frame.

[0021] Optionally, it also includes a ring pad, which is arranged in the limiting slide of the first flexible connecting steel sheet, and a part of the ring pad is embedded in the first soft pad, and the limiting column and the ring pad are slidably matched together.

[0022] Specifically, the ring pad is embedded in the limiting slide of the first flexible connecting steel sheet and the synchronous slide of the first soft pad. The function of the ring pad is to slide with the limiting column. The limiting column slides relative to the ring pad, which can avoid wear of the first flexible connecting steel sheet and the first soft pad.

[0023] Optionally, it also includes a linkage plate and an electric push rod, wherein both ends of the linkage plate are hingedly matched with the first frame and the second frame respectively, one end of the electric push rod is matched with the base, and the other end of the electric push rod is matched with the first frame.

[0024] The specific function of the linkage plate is to link the first frame and the second frame, and the function of the electric push rod is to push the first frame to move on the base. Since the first frame and the second frame are linked by the linkage plate, when the first frame moves on the first motion guide rail of the base, the second frame will also move on the second motion guide rail of the base, and in this process, the second frame rotates relative to the first frame.

[0025] Optionally, there are two first motion guide rails, and the two first motion guide rails are in parallel, and there are two second motion guide rails, and the two second motion guide rails are in parallel.

[0026] The two first motion guide rails can ensure the stability of the first frame when it slides, and the two second motion guide rails can ensure the stability of the second frame when it slides.

[0027] Since the first frame and the second frame can rotate relative to each other, the flexible chair frame structure has two states: a lying state and a non-lying state (also called an initial state).

[0028] A massage chair comprises the flexible chair frame structure as described above.

[0029] The beneficial effect of the utility model is that a complete rack is laid on the first frame, the second frame and the second soft pad. Due to the integrity of the rack, it can be ensured that the gear remains stable when running between the first frame, the second soft pad and the second frame, and there will be no tooth jumping phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram showing the flexible chair frame structure in a non-lying state;

[0031] Figure 2 yes Figure 1 The enlarged schematic diagram of A in the middle;

[0032] Figure 3 is a schematic diagram of the coordination relationship between the first frame and the second frame;

[0033] Figure 4is a schematic diagram of the flexible chair frame structure in a lying state;

[0034] Figure 5 yes Figure 4 An enlarged schematic diagram of point B in the middle.

[0035] The reference numerals in the figure are: 1. base; 2. electric push rod; 3. first connecting frame; 4. first motion guide rail; 5. first frame; 6. second motion guide rail; 7. second frame; 8. rack; 9. second connecting frame; 10. second roller; 11. auxiliary plate; 12. ring pad; 13. limiting column; 14. first flexible connecting steel sheet; 15. first soft pad; 16. connecting soft pad; 17. second soft pad; 18. second flexible connecting steel sheet; 19. first roller; 20. linkage plate. DETAILED DESCRIPTION

[0036] The utility model is described in detail below in conjunction with the accompanying drawings.

[0037] Embodiment 1, a flexible chair frame structure

[0038] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, a flexible chair frame structure includes a base 1, a first frame 5 and a second frame 7. The base 1 is provided with a first motion guide rail 4 and a second motion guide rail 6. The first frame 5 is slidably arranged on the first motion guide rail 4, and the second frame 7 is arranged on the second motion guide rail 6. It also includes a first flexible connecting steel sheet 14, a second flexible connecting steel sheet 18 and a rack 8. The two ends of the second flexible connecting steel sheet 18 are respectively fixed to the first frame 5 and the second frame 7. One end of the first flexible connecting steel sheet 14 is fixed to the first frame 5. A limiting column 13 is arranged on the second frame 7. A limiting slide is arranged on the other end of the first flexible connecting steel sheet 14. The limiting column 13 and the limiting slide are slidably matched together. A second soft pad 17 is arranged on the second flexible connecting steel sheet 18. The rack 8 is a continuous and uninterrupted rack 8. The rack 8 is arranged on the first frame 5, the second frame 7 and the second soft pad 17. The second flexible connecting steel sheet 18 and the second soft pad 17 are always in an arc shape.

[0039] In this chair frame structure, the first frame 5 and the second frame 7 are connected by means of the first flexible connecting steel sheet 14, the second flexible connecting steel sheet 18, the first soft pad 15 and the second soft pad 17, so as to realize the flexible connection between the first frame 5 and the second frame 7. Since the first flexible connecting steel sheet 14 and the second flexible connecting steel sheet 18 are both made of 65 manganese steel, the first flexible connecting steel sheet 14 and the second flexible connecting steel sheet 18 have a certain degree of bendability. In this way, when the second frame 7 is bent relative to the first frame 5, the first flexible connecting steel sheet 14 and the second flexible connecting steel sheet 18 can bend, so that the first flexible connecting steel sheet 14 and the second flexible connecting steel sheet 18 can be adaptively twisted and deformed. Similarly, the rack is made of flexible plastic material, and when the first frame and the second frame are relatively bent, the rack can be adaptively bent.

[0040] In this structure, since a complete rack 8 is laid on the first frame 5, the second frame 7 and the second soft pad 17, the integrity of the rack 8 can ensure that the gear remains stable when running between the first frame 5, the second soft pad 17 and the second frame 7, and there will be no tooth jumping phenomenon.

[0041] In this structure, since the limiting column 13 is provided on the second frame 7, the limiting slide is provided on the first flexible connecting steel sheet 14, and the limiting slide is slidably matched with the limiting column 13, and the two ends of the second flexible connecting steel sheet 18 are fixed to the first frame 5 and the second frame 7, when in use, the first flexible connecting steel sheet 14 is located at the top, and the second flexible connecting steel sheet 18 is located at the bottom, so when the second frame 7 rotates relative to the first frame 5, the limiting column 13 will slide in the limiting slide, and the existence of the limiting column 13 and the limiting slide can ensure that when the second frame 7 rotates relative to the first frame 5, the first frame 5 can remain stable, and ensure that the first frame 5 and the second frame 7 are located in a straight line. Ensure the stability of the entire chair frame structure.

[0042] In this structure, in order to stably place the rack 8, the first frame 5 and the second frame 7 are both in a half-mouth shape, that is, the first frame 5 and the second frame 7 have grooves, and the grooves are in a half-mouth shape. The rack 8 is located in the grooves of the first frame 5 and the second frame 7. The presence of the grooves can protect the rack 8.

[0043] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5As shown, it also includes a first soft pad 15, which is tightly fitted with the first flexible connecting steel sheet 14. A synchronous slide is provided on the first soft pad 15, and the synchronous slide (not visible in the field of vision, not shown in the accompanying drawings) coincides with a limiting slide (not visible in the field of vision, not shown in the accompanying drawings), and the limiting column 13 slides with the synchronous slide.

[0044] A synchronous slideway overlapping with the limiting slideway is provided on the first soft pad 15. The existence of the synchronous slideway enables the first soft pad 15 and the first flexible connecting steel sheet 14 to slide relative to the limiting slide column, so that the second frame 7 can be kept as stable as possible when rotating relative to the first frame 5.

[0045] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, it also includes a connecting pad 16 , the two ends of which are respectively matched with the first pad 15 and the second pad 17 , and the connecting pad 16 , the first pad 15 and the second pad 17 are integrally formed.

[0046] Specifically, the first soft pad 15, the second soft pad 17 and the connecting soft pad 16 together form a flexible connecting plate, which is used to flexibly connect the first frame 5 and the second frame 7, and the first flexible connecting steel sheet 14 and the second flexible connecting steel sheet 18 on both sides of the flexible connecting frame are used to increase the rigidity of the connecting plate. At the same time, in order to adapt to the shapes of the first frame 5 and the second frame 7, the connecting plate is also a half-mouth-shaped connecting plate, and the half-mouth-shaped connecting plate also has a half-mouth-shaped groove, and the rack 8 is located in the groove.

[0047] By means of the first flexible connecting steel sheet 14 , the second flexible connecting steel sheet 18 and the connecting plate, the first frame 5 and the second frame 7 are flexibly and fixedly connected, and the first frame 5 and the second frame 7 can rotate relative to each other.

[0048] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, a first roller 19 is provided on the first frame 5 , and a second roller 10 is provided on the second frame 7 . The first roller 19 is slidably matched with the first motion guide rail 4 , and the second roller 10 is slidably matched with the second motion guide rail 6 .

[0049] The first roller 19 is used to ensure that the first frame 5 can slide on the first motion guide rail 4, and the second roller 10 is used to ensure that the second frame 7 can slide on the second motion guide rail 6. Specifically, the first roller 19 is a first roller 19 made of plastic, and the second roller 10 is a second roller 10 made of plastic.

[0050] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, there are two first frames 5, the two first frames 5 are in a parallel state, and the two first frames 5 are fixed together by a first connecting frame 3; there are two second frames 7, the two second frames 7 are in a parallel state, and the two second frames 7 are fixed together by a second connecting frame 9.

[0051] Specifically, the function of the first connecting frame 3 is to connect and fix the two first frames 5, and the function of the second connecting frame 9 is to connect and fix the two second frames 7. The first frames 5 and the second frames 7 are both U-shaped, and there are multiple first frames 5 and multiple second frames 7. The first frames 5 are in parallel, and the second frames 7 are in parallel.

[0052] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, it also includes an auxiliary plate 11, which is a Z-shaped auxiliary plate 11. One end of the auxiliary plate 11 is fixed to the second frame 7. The two ends of the limiting column 13 are respectively matched with the second frame 7 and the auxiliary plate 11. The first soft pad 15 and the first flexible connecting steel plate 14 are located between the second frame 7 and the auxiliary plate 11.

[0053] The purpose of setting the Z-shaped auxiliary plate 11 is to install the limiting column 13. A part of the limiting column 13 is located between the auxiliary plate 11 and the second frame 7, and the first soft pad 15 and the first flexible connecting steel plate 14 are mounted on the limiting column 13, and the first soft pad 15 and the first flexible connecting steel plate 14 are located between the auxiliary plate 11 and the second frame 7.

[0054] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, it also includes a ring pad 12, which is arranged in the limiting slideway of the first flexible connecting steel sheet 14, and a part of the ring pad 12 is embedded in the first soft pad 15, and the limiting column 13 is slidably matched with the ring pad 12.

[0055] Specifically, the ring pad 12 is embedded in the limiting slide of the first flexible connecting steel sheet 14 and the synchronous slide of the first soft pad 15. The function of the ring pad 12 is to slide with the limiting column 13. The limiting column 13 slides relative to the ring pad 12, so as to avoid wear of the first flexible connecting steel sheet 14 and the first soft pad.

[0056] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, it also includes a linkage plate and an electric push rod 2, the two ends of the linkage plate are respectively hingedly matched with the first frame 5 and the second frame 7, one end of the electric push rod 2 is matched with the base 1, and the other end of the electric push rod 2 is matched with the first frame 5.

[0057] Specifically, the function of the linkage plate 20 is to link the first frame 5 and the second frame 7, and the function of the electric push rod 2 is to push the first frame 5 to move on the base 1. Since the first frame 5 and the second frame 7 are linked by the linkage plate, when the first frame 5 moves on the first motion guide rail 4 of the base 1, the second frame 7 will also move on the second motion guide rail 6 of the base 1, and the second frame 7 rotates relative to the first frame 5 during this process.

[0058] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, there are two first motion guide rails 4, and the two first motion guide rails 4 are in a parallel state, and there are two second motion guide rails 6, and the two second motion guide rails 6 are in a parallel state.

[0059] The two first motion guide rails 4 can ensure the stability of the first frame 5 when it slides, and the two second motion guide rails 6 can ensure the stability of the second frame 7 when it slides.

[0060] Since the first frame 5 and the second frame 7 can rotate relative to each other, the flexible chair frame structure has two states: a lying state and a non-lying state (also called an initial state).

[0061] Example 2

[0062] A massage chair includes the flexible chair frame structure as shown in Example 1.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A flexible chair frame structure, comprising a base, a first frame and a second frame, wherein the base is provided with a first motion guide rail and a second motion guide rail, the first frame is slidably provided on the first motion guide rail, and the second frame is provided on the second motion guide rail, characterized in that: It also includes a first flexible connecting steel sheet, a second flexible connecting steel sheet and a rack, the two ends of the second flexible connecting steel sheet are respectively fixed to the first frame and the second frame, one end of the first flexible connecting steel sheet is fixed to the first frame, a limiting column is arranged on the second frame, a limiting slide is arranged on the other end of the first flexible connecting steel sheet, the limiting column and the limiting slide are slidably matched together, a second soft pad is arranged on the second flexible connecting steel sheet, the rack is a continuous and uninterrupted rack, the rack is arranged on the first frame, the second frame and the second soft pad, the second flexible connecting steel sheet and the second soft pad are always in an arc shape; the rack is a flexible rack.

2. The flexible chair frame structure according to claim 1, characterized in that: It also includes a first soft pad, which is tightly matched with a first flexible connecting steel sheet. A synchronous slide is provided on the first soft pad, which coincides with the limiting slide, and the limiting column is slidably matched with the synchronous slide.

3. The flexible chair frame structure according to claim 2, characterized in that: It also includes a connecting cushion, the two ends of which are respectively matched with the first cushion and the second cushion, and the connecting cushion, the first cushion and the second cushion are integrally formed.

4. The flexible chair frame structure according to claim 1, characterized in that: The first frame is provided with a first roller, the second frame is provided with a second roller, the first roller is slidably matched with the first motion guide rail, and the second roller is slidably matched with the second motion guide rail.

5. The flexible chair frame structure according to claim 1, characterized in that: There are two first frames, the two first frames are in parallel, and the two first frames are fixed together by a first connecting frame; there are two second frames, the two second frames are in parallel, and the two second frames are fixed together by a second connecting frame.

6. The flexible chair frame structure according to claim 2, characterized in that: It also includes an auxiliary plate, which is a Z-shaped auxiliary plate. One end of the auxiliary plate is fixed to the second frame, and the two ends of the limiting column are respectively matched with the second frame and the auxiliary plate. The first cushion and the first flexible connecting steel plate are located between the second frame and the auxiliary plate.

7. The flexible chair frame structure according to claim 2, characterized in that: It also includes a ring pad, which is arranged in the limiting slideway of the first flexible connecting steel sheet, and a part of the ring pad is embedded in the first soft pad, and the limiting column and the ring pad are slidably matched together.

8. The flexible chair frame structure according to claim 1, characterized in that: It also includes a linkage plate and an electric push rod, wherein the two ends of the linkage plate are respectively hingedly matched with the first frame and the second frame, one end of the electric push rod is matched with the base, and the other end of the electric push rod is matched with the first frame.

9. The flexible chair frame structure according to claim 1, characterized in that: There are two first motion guide rails, and the two first motion guide rails are in parallel. There are two second motion guide rails, and the two second motion guide rails are in parallel.

10. A massage chair, characterized in that: It comprises a flexible chair frame structure as described in any one of claims 1 to 9.

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