Guide rail mechanism and massage chair framework

Abstract

The utility model discloses a guide rail mechanism and massage chair skeleton, its technical scheme main point is that guide rail mechanism includes back frame guide rail and seat frame guide rail, and back frame guide rail is equipped with back frame rack, and seat frame guide rail is equipped with seat frame rack, transition guide rail is connected in back frame guide rail and seat frame guide rail between in proper order, and the number of transition guide rail is at least two, and transition guide rail is equipped with transition rack, and massage chair skeleton includes guide rail mechanism, adopts two above -mentioned rotating connection's transition guide rail, adopts the setting of rotating connection point on rack graduation line, satisfies the rack when the rotation of guide rail can smoothly link, and through two above -mentioned transition guide rail makes back frame and seat frame rotation amplitude become big, makes the lying posture more comfortable.

Description

Technical Field

[0001] This utility model relates to the field of massage chairs, and more specifically, it relates to a guide rail mechanism and a massage chair frame. Background Technology

[0002] Existing massage chairs include a backrest frame, a seat frame, and a base. The seat frame is fixedly mounted on the base, and the backrest frame is rotatably connected to the seat frame in order to allow the chair to recline flat.

[0003] Both the backrest frame and the seat frame are equipped with guide rails for the massage mechanism to move along.

[0004] When the backrest frame rotates, the guide rails of the backrest frame and the seat frame do not interfere with each other, and there is a certain gap between the two guide rails, but this is not conducive to the massage mechanism moving on the two guide rails.

[0005] Therefore, a guide rail is needed to overcome the problem that existing one-piece guide rails cannot be bent. For example, a massage chair with the announcement number CN216168674U and the name of a segmented frame is found. The backrest frame and the seat frame are connected by a hinged transition frame, which achieves the purpose of bending.

[0006] However, in order to ensure that the racks of the transition frame, backrest frame and seat frame can be smoothly connected to the movement of the mechanism during the rotation, the rotation amplitude between adjacent frames cannot be too large. This limits the rotation amplitude of the three frames around the hinge point, and thus also limits the swing amplitude of the seat. Utility Model Content

[0007] The primary objective of this invention is to provide a guide rail mechanism that employs two or more rotatably connected transition guide rails. By using two or more transition guide rails, the range of rotation of the backrest and seat frame can be increased, making the lying posture more comfortable.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0009] A guide rail mechanism includes: a back frame guide rail and a seat frame guide rail, the back frame guide rail having a back frame rack and the seat frame guide rail having a seat frame rack; a transition guide rail rotatably connected between the back frame guide rail and the seat frame guide rail, the number of transition guide rails being at least two, and the transition guide rail having a transition rack; the rotation connection point of the transition guide rail is located on the indexing line of the adjacent two racks.

[0010] Preferably, for two adjacent rotary-connected guide rails, the flat side of the first flat screw is fixed to one guide rail, and the other guide rail rotates around the first flat screw.

[0011] Preferably, there are two transition guide rails, namely an upper guide rail and a lower guide rail, and there are three No. 1 flat screws from top to bottom; the upper No. 1 flat screw is fixed to the back frame guide rail; the middle No. 1 flat screw is fixed to the upper or lower guide rail; the lower No. 1 flat screw is fixed to the seat frame guide rail; an upper outer plate is fixed to the outer side of the upper guide rail; a lower outer plate is fixed to the outer side of the upper guide rail; the three No. 1 flat screws are provided with an upper connecting plate and a lower connecting plate that connect the back frame guide rail, the seat frame guide rail, the upper guide rail and the lower guide rail.

[0012] Preferably, the upper No. 1 flat screw passes through the upper connecting plate; the middle No. 1 flat screw passes through the upper connecting plate, the lower connecting plate, the upper outer plate, and the upper outer plate; the lower No. 1 flat screw passes through the lower connecting plate; the No. 1 flat screw is fitted with a shoulder sleeve, the shoulder sleeve forms a rotating groove for relative rotation of the passing component, and the nut of the No. 1 flat screw presses against the shoulder sleeve.

[0013] Preferably, the upper guide rail is fixed with a No. 2 flat screw, which passes through the upper guide rail and has a rotating groove to allow the upper connecting plate to rotate relative to it; the lower guide rail is fixed with a No. 2 flat screw, which passes through the lower guide rail and has a rotating groove to allow the lower connecting plate to rotate relative to it.

[0014] Preferably, the rotation connection point of the transition guide is located on the indexing line of the adjacent two racks.

[0015] The second objective of this invention is to provide a massage chair frame that uses a rotating connection point on the rack indexing line to ensure smooth rack engagement when the guide rail rotates. Furthermore, the use of two or more transition guide rails increases the range of rotation of the backrest and seat frame, making the lying posture more comfortable.

[0016] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0017] Preferably, the massage chair frame includes: a base frame; a seat frame that slides on the base frame, with a seat frame guide rail fixed to the seat frame; a support rod assembly mounted on the backrest guide rail, the support rod assembly having two No. 1 rollers that slide on the base frame; and a power component that pushes the seat frame to reciprocate.

[0018] Preferably, the base frame is provided with two back frame slide rails, and the two No. 1 rollers of the strut assembly slide on the corresponding back frame slide rails respectively.

[0019] Preferably, the base frame is provided with a horizontal seat rail, and the seat frame is provided with a second roller that slides on the seat rail.

[0020] Preferably, the base frame is provided with a seat frame that is inclined upward relative to the seat frame slide rail.

[0021] Preferably, the armrest includes two No. 3 rollers at one end, which slide on two outer slide rails of the seat frame respectively; the other end of the armrest is rotatably connected to the outside of the back frame guide rail, and the outside of the back frame guide rail is provided with an arc groove. A pivot is provided above the armrest, which is inserted into the arc groove and rotates along the trajectory of the arc groove.

[0022] In summary, this utility model has at least one of the following beneficial effects:

[0023] Two or more transition rails are sequentially rotatably connected to the backrest rail and seat rail. The use of two or more transition rails increases the range of rotation of the backrest rail and seat rail, thereby increasing the overall swing range of the rails and making the lying position more comfortable. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the guide rail mechanism in the embodiment;

[0025] Figure 2 This is an exploded view of one side of the guide rail mechanism in the embodiment;

[0026] Figure 3 This is a schematic diagram of the rotating grooves on the two flat screws in the embodiment;

[0027] Figure 4 This is a schematic diagram of the guide rail mechanism removing the transition guide rail in the embodiment;

[0028] Figure 5 This is a schematic diagram of the massage chair frame in the embodiment;

[0029] Figure 6 This is a schematic diagram illustrating the connection relationship between the guide rail structure and the frame body in the embodiment.

[0030] Figure 7 This is a schematic diagram of the frame structure in the embodiment;

[0031] Figure 8 This is a schematic diagram of the base frame structure in the embodiment;

[0032] Figure 9 This is a schematic diagram of the back of the massage chair frame in the embodiment;

[0033] Figure 10 This is a schematic diagram of the handrail structure in the embodiment;

[0034] Figure 11 This is a schematic diagram of the massage chair frame erected in the embodiment;

[0035] Figure 12 This is a schematic diagram of the massage chair frame lying flat in the embodiment.

[0036] In the picture:

[0037] 11. Backrest guide rail; 12. Backrest rack;

[0038] 21. Mount guide rail; 22. Mount rack;

[0039] 31. Upper guide rail; 32. Lower guide rail; 33. Transition rack;

[0040] 41. No. 1 flat screw; 42. No. 2 flat screw;

[0041] 5. Rotary groove; 51. Shoulder sleeve;

[0042] 61. Upper connecting plate; 62. Lower connecting plate;

[0043] 71. Upper outer panel; 72. Lower outer panel;

[0044] 81. Upper limit plate; 82. Lower limit plate;

[0045] 101. Chassis body;

[0046] 102. Seat frame body; 103. Seat frame slide rail;

[0047] 104. Support rod assembly; 105. Back frame slide rail; Rollers;

[0048] 106. Seat frame;

[0049] 107. Power components;

[0050] 201. Handrail; 202. Outer slide rail; 203. Arc groove; 204. Rotary shaft;

[0051] 301. Roller No. 1; 302. Roller No. 2; 303. Roller No. 3. Detailed Implementation

[0052] The present invention will be further described in detail below with reference to the accompanying drawings.

[0053] Example 1, a guide rail mechanism, referring to Figure 1 Its guide rails are arranged symmetrically on the left and right sides and can be fixed by connecting rods through screws or welding. It includes a back frame guide rail 11 and a seat frame guide rail 21. The back frame guide rail 11 is fixed to the back frame rack 12 by screws, and the seat frame guide rail 21 is fixed to the seat frame rack 22 by screws.

[0054] To ensure that the internal rack can still allow the movement to travel on the rack when the back rail 11 and the base rail 21 rotate relative to each other,

[0055] Two transition rails are rotatably connected between the back frame guide rail 11 and the seat frame guide rail 21. The two transition rails are the upper guide rail 31 and the lower guide rail 32, respectively.

[0056] Both the upper guide rail 31 and the lower guide rail 32 are fixed with transition racks 33 by screws.

[0057] The adjacent guide rails are connected by a flat screw 41 to achieve relative rotation. The rotation connection point of the transition guide rail is located on the indexing line of the adjacent racks on both sides. The specific structure is as follows:

[0058] The No. 1 flat screw 41 and the No. 2 flat screw 42 have the same structure, which includes a flat cap, a middle shaft, and a threaded tail.

[0059] There are three flat screws, number 41, from top to bottom;

[0060] Each of the four guide rail positions is provided with a countersunk hole, and the corresponding No. 1 flat screw 41 is inserted into the countersunk hole to achieve rotation. The countersunk hole provides a movement constraint on one end of the No. 1 flat screw 41, and the other end of the No. 1 flat screw 41 is connected by a nut, as detailed below.

[0061] Reference Figure 4 For the upper No. 1 flat screw 41, an upper limit plate 81 is welded and fixed to the outside of the back frame guide rail 11, and the head of the No. 1 flat screw 41 is inserted into the countersunk hole of the upper limit plate 81; in the same principle, for the lower No. 1 flat screw 41, its head is inserted into the countersunk hole of the lower limit plate 82 where the seat guide rail 21 is located.

[0062] Continuing the description of the first flat screw 41 above, refer to... Figure 1 and Figure 2 The arc side of the first flat screw 41 is rotatably connected to the upper guide rail 31. Through the first flat screw 41 above, the upper guide rail 31 can rotate relative to the back frame guide rail 11.

[0063] Using the same principle, the lower guide rail 32 can rotate relative to the seat guide rail 21 by using the first flat screw 41 at the bottom; the connection between the lower guide rail 32 and the upper guide rail 31 uses two staggered connecting plates to install the first flat screw 41 in the middle, so that the lower guide rail 32 can rotate relative to the upper guide rail 31.

[0064] The first flat screw 41 in the middle is inserted into the countersunk hole of the lower guide rail 32 and then locked in place by a nut; the lower guide rail 32 is fixed with a protruding circular surface, the axis of the circular surface and the axis of the first flat screw 41 in the middle are on the same straight line, and the upper guide rail 31 rotates along the protruding circular surface.

[0065] To connect the four guide rails, namely the back frame guide rail 11, the seat frame guide rail 21, the upper guide rail 31, and the lower guide rail 32, the following structure is provided.

[0066] Reference Figure 2 and Figure 3The first flat screw 41 is inserted through its respective guide rail and then fitted with a shoulder sleeve 51. The shoulder sleeve 51 includes a large ring and a small ring fixed along the length direction. For two adjacent shoulder sleeves 51, the two large rings form a rotating groove 5, and the small ring is used for back-to-back contact. When the nut is tightened to press the shoulder, the shoulder presses against the corresponding guide rail, so that the first flat screw 41 and the corresponding guide rail are fixed.

[0067] Specifically:

[0068] The top flat screw 41 is fixed to the back frame guide rail 11;

[0069] The middle flat screw 41 is fixed to the lower guide rail 32;

[0070] The first flat screw 41 at the bottom is fixed to the base rail 21.

[0071] The rotating groove 5 formed by the shoulder sleeve 51 provides for the subsequent rotational installation of the structure, as detailed below:

[0072] The upper flat screw 41 is inserted through the upper connecting plate 61. The upper connecting plate 61 can rotate within its rotation. In this scheme, the rotation around the rotating groove 5 refers to the clearance fit between the two.

[0073] The outer side of the upper guide rail 31 is fixed with an upper outer plate 71 by screws, and the outer side of the lower guide rail 32 is fixed with a lower outer plate 72 by screws.

[0074] The first flat screw 41 at the bottom passes through the lower connecting plate 62, which can rotate within its rotation. In this design, the rotation around the rotating groove 5 refers to the clearance fit between the two.

[0075] The outer side of the upper guide rail 31 is fixed with an upper outer plate 71 by screws, and the outer side of the lower guide rail 32 is fixed with a lower outer plate 72 by screws.

[0076] For the first flat screw 41 in the middle, the upper connecting plate 61, the lower connecting plate 62, the upper outer plate 71 and the lower outer plate 72 are each connected to the first flat screw 41 which is sleeved in the rotating groove 5.

[0077] Clearly, the four guide rails have been connected together by the upper connecting plate 61 and the lower connecting plate 62.

[0078] Specific reference Figure 3The upper guide rail 31 is connected to the upper connecting plate 61 by a second flat screw 42, and the lower guide rail 32 is also connected to the lower connecting plate 62 by a second flat screw 42. The connection methods are the same. Specifically, taking the upper guide rail 31 as an example, the cap of the second flat screw 42 is inserted into the countersunk hole of the upper guide rail 31. The second flat screw 42 passes through the upper outer plate 71 and is also abutted against the outside of the upper outer plate 71 by the shoulder sleeve 51 and fixed with a nut. This achieves the fixation of the upper guide rail 31, the upper outer plate 71 and the second flat screw 42. Then, the upper connecting plate 61 is rotated and connected in the rotating groove 5 formed by the shoulder sleeve 51.

[0079] Example 2, massage chair frame, reference Figures 5-9 It includes the guide rail mechanism of Embodiment 1, specifically including Figure 8 The base frame 101 is made of welded metal rods.

[0080] The base frame 101 has symmetrically arranged seat slide rails 103 fixed on both sides, and the seat slide rails 103 are arranged horizontally.

[0081] Reference Figure 5 and Figure 8 The base frame 101 slides onto the seat frame 102; four No. 2 rollers 302 are installed under the seat frame 102, and the four No. 2 rollers 302 roll on the seat frame slide rail 103, so that the seat frame 102 can move horizontally along the seat frame slide rail 103. The seat frame slide rail 103 is set horizontally to reduce the change of hip undulation during movement and improve comfort.

[0082] The base frame 101 is symmetrically fixed by the guide rail 21.

[0083] A power component 107 is rotatably connected between the base frame 101 and the seat frame 102. The power component 107 is an electric push rod, which drives the seat frame 102 and its seat guide rail 21 to move back and forth.

[0084] The base frame 101 is fixed with a seat frame 106 by screws. The seat frame 106 is tilted upward relative to the seat frame slide rail 103. This setting makes the user's legs raised relative to their buttocks, making the thighs more comfortable.

[0085] The movement of the seat frame 102 will drive the seat frame guide rail 21 to move synchronously. The seat frame guide rail 21 drives the back frame guide rail 11 to rotate during the movement. This rotation depends on the strut assembly 104.

[0086] Reference Figure 6 The strut assembly 104 includes two struts, which are fixed below the seat guide rail 21. The struts are welded and fixed with short diagonal bars and long diagonal bars, which increases the structural strength of the strut assembly 104.

[0087] The strut assembly 104 uses roller 301 to slide on the back frame slide rail 105, which makes the back frame slide rail 105 slide down more smoothly and also improves the support strength of the back frame slide rail 105.

[0088] Reference Figure 6 and Figure 8 The long diagonal bar is equipped with two No. 1 rollers 301. The base frame 101 is symmetrically fixed with back frame slide rails 105 on the left and right sides, with two back frame slide rails 105 on each side.

[0089] The two rollers 301 of the strut assembly 104 slide on their corresponding back frame slide rails 105. The two back frame slide rails 105 on the same side are arranged one in front of the other, and their adjacent sections are inclined downwards. This design makes the arc change of the back frame slide rail 105 relatively smooth when it rotates.

[0090] Example 3, a massage chair frame, differs from Example 2 in that it has only armrests 201, the main body of which is made of welded metal rods.

[0091] One end of the armrest 201 is connected to the seat frame 102;

[0092] The other end of the armrest 201 is connected to the backrest guide rail 11;

[0093] Specifically, one end of the handrail 201 is equipped with two No. 3 rollers 303, and the seat frame 102 is fixed with two outer slide rails 202. The two No. 3 rollers 303 move on the two outer slide rails 202.

[0094] The handrail 201 is equipped with two pivots 204, which are arranged vertically.

[0095] The upper pivot 204 back frame guide rail 11 is hinged;

[0096] The lower pivot 204 is connected to the arc groove 203, which is arc-shaped. The arc groove 203 has a fixing plate, which is fixed to the outside of the back frame guide rail 11 by screws.

[0097] The lower rotating shaft 204 is inserted into the arc-shaped groove 203 and rotates along the trajectory of the arc-shaped groove 203 to a limited position.

[0098] This design allows the armrests to swing along the backrest guide rail 11.

[0099] Reference Figure 11 and Figure 12 It can be positioned in two states: upright and flat.

[0100] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A guide rail mechanism, characterized in that it comprises: The back frame guide rail (11) and the seat frame guide rail (21) are provided with a back frame rack (12) and a seat frame guide rail (21) are provided with a seat frame rack (22). The transition rails are sequentially rotated between the back frame guide rail (11) and the seat frame guide rail (21). There are at least two transition rails, and each transition rail is provided with a transition rack (33).

2. The guide rail mechanism according to claim 1, characterized by: A flat screw (41) is used as the rotating shaft between adjacent guide rails; For two adjacent rotary connecting guide rails, the flat side of the first flat screw (41) is fixed to one guide rail, and the other guide rail rotates around the first flat screw (41).

3. A guide rail mechanism according to claim 1 or 2, characterized in that: There are two transition rails, namely the upper rail (31) and the lower rail (32), and there are three No. 1 flat screws (41) from top to bottom; The top flat screw (41) is fixed to the back frame guide rail (11); The first flat screw (41) in the middle is fixed to the upper guide rail (31) or the lower guide rail (32); The first flat screw (41) below is fixed to the seat guide rail (21); An upper outer plate (71) is fixed to the outer side of the upper guide rail (31); The outer side of the upper guide rail (31) is fixed with a lower outer plate (72); The three No. 1 flat screws are equipped with an upper connecting plate (61) and a lower connecting plate (62) that connect the back frame guide rail (11), the seat frame guide rail (21), the upper guide rail (31) and the lower guide rail (32).

4. The guide rail mechanism according to claim 3, characterized in that: The No. 1 flat threaded screw at the top passes through the upper connecting plate (61); The first flat screw in the middle passes through the upper connecting plate (61), the lower connecting plate (62), the upper outer plate (71), and the upper outer plate (72); The first flat threaded screw at the bottom passes through the lower connecting plate (62); The No. 1 flat screw (41) is fitted with a shoulder sleeve (51), the shoulder sleeve (51) forms a rotating groove (5) for relative rotation of the through component, and the nut of the No. 1 flat screw (41) presses the shoulder sleeve (51).

5. The guide rail mechanism according to claim 3, characterized in that: The upper guide rail (31) is fixed with a second flat screw (42), which passes through the upper guide rail (31) and has a rotating groove (5) to allow the upper connecting plate (61) to rotate relative to it. The lower guide rail (32) is fixed with a second flat screw (42). The second flat screw (42) passes through the lower guide rail (32) and has a rotating groove (5) to allow the lower connecting plate (62) to rotate relative to it.

6. The guide rail mechanism according to claim 1, characterized in that: The rotation connection point of the transition guide is located on the indexing line of the adjacent racks on both sides.

7. A massage chair frame, characterized in that, include: chassis body (101); The seat frame (102) slides on the base frame (101), and the seat frame guide rail (21) of claim 1 is fixed to the seat frame (102); A strut assembly (104) is installed on the back frame guide rail (11). The strut assembly (104) is provided with two No. 1 rollers (301). The two rollers slide on the base frame body (101). The base frame (101) is equipped with a power component (107) that drives the seat frame (102) to reciprocate.

8. The massage chair frame according to claim 7, characterized in that: The base frame (101) is provided with two back frame slide rails (105), and the two No. 1 rollers (301) of the strut assembly (104) slide on the corresponding back frame slide rails (105).

9. The massage chair frame according to claim 8, characterized in that: The base frame (101) is provided with a horizontal seat frame slide rail (103), and the seat frame (102) is provided with a second roller (302) that slides on the seat frame slide rail (103); the base frame (101) is provided with a seat surface frame (106) that is inclined upward relative to the seat frame slide rail (103).

10. The massage chair frame according to claim 7, characterized in that: Includes an armrest (201), one end of which is provided with two No. 3 rollers (303), which slide on the two outer slide rails (202) of the seat frame (102); The other end of the handrail (201) is rotatably connected to the outside of the back frame guide rail (11), and the outside of the back frame guide rail (11) is provided with an arc groove (203). A rotating shaft (204) is provided above the handrail (201). The rotating shaft (204) is inserted into the arc groove (203) and rotates along the trajectory of the arc groove (203).

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