Seat waist rest structure and seat

Abstract

The utility model relates to the technical field of seats, in particular to a seat waist rest structure and a seat, which comprises a fixed support, a waist rest and a waist rest, the fixed support is connected with a backrest support of the seat, and the fixed support is provided with a vertical chute; the movable support comprises a movable connecting piece, and the movable connecting piece is connected with the sliding groove in a sliding mode; the first axial end of the elastic connecting piece is connected with the fixed support, and the second axial end of the elastic connecting piece is connected with the movable connecting piece. According to the chair seat waist rest structure, the movable support and the elastic connecting piece are arranged, and the elastic connecting piece is connected with the fixed support and the movable support at the same time, so that when a user leans on the chair seat waist rest structure, the chair seat waist rest structure can be adjusted in a self-adaptive mode according to the waist curve of the user.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, and more specifically to a seat lumbar support structure and a seat. Background Art

[0002] In recent years, people have higher and higher requirements for comfort. As seats are indispensable equipment in people's daily lives, people's requirements for comfort have also increased accordingly. The lumbar support of the seat can reduce the pressure on the waist muscles and ligaments, and achieve the effect of preventing and relieving waist pain; in addition, the lumbar support of the seat can also disperse the pressure of the seat on the buttocks, reducing the discomfort caused by sitting for a long time. Therefore, using a lumbar support is an important measure to improve the comfort of the seat.

[0003] The lumbar supports on the market are either fixed in a certain position, or require the user to manually adjust the lumbar support, or are equipped with lumbar supports for high-end seats. However, for lumbar supports that are fixed in a certain position, they cannot be adjusted. Since everyone is different in height, weight, and body shape, the required lumbar support position is also different, so it is difficult to meet the needs of different people; for lumbar supports that can be adjusted manually, this type of lumbar support requires the user to adjust it multiple times to adjust it to the appropriate position, which is cumbersome to operate; for lumbar supports for high-end seats, this type of lumbar support has intelligent characteristics, and uses sensors to sense the user's sitting posture and waist curve, and then performs adaptive adjustments, but this type of lumbar support has a complex structure and is expensive, so many users do not choose this type of high-end seat.

[0004] The technical problem to be solved by the utility model is: it can be composed of a simple structure and can automatically adjust the position of the lumbar support according to the waist curve of the user, so that the waist of the user can be well supported when sitting or lying, thereby improving the comfort of the user.

[0005] In summary, there is an urgent need for a low-cost lumbar support that can be adaptively adjusted according to the waist curve of the user to address the deficiencies of the prior art. Utility Model Content

[0006] The utility model provides a seat lumbar support structure, which is provided with a movable bracket and an elastic connecting piece, and the elastic connecting piece is connected to the fixed bracket and the movable bracket at the same time, so that when a user uses the seat lumbar support structure, the seat lumbar support structure can be adaptively adjusted according to the waist curve of the user.

[0007] The specific technical solutions adopted by the utility model to solve the above technical problems are as follows:

[0008] A chair seat lumbar support structure, comprising:

[0009] A fixed bracket, the fixed bracket is connected to the backrest bracket of the seat, and the fixed bracket is provided with a vertical slide groove;

[0010] A movable bracket, the movable bracket includes a movable connecting piece, and the movable connecting piece is slidably connected to the slide groove;

[0011] An elastic connecting member, wherein an axial first end of the elastic connecting member is connected to the fixed bracket, and an axial second end of the elastic connecting member is connected to the movable connecting member.

[0012] As a further preferred solution, the movable bracket also includes a lumbar support frame, the movable connecting piece is provided with a slide bar, the lumbar support frame is provided with a slide bar connecting portion, and the slide bar passes through a slide groove and is connected to the slide bar connecting portion of the lumbar support frame.

[0013] Further as a preferred embodiment, the slide groove includes a first slide groove and a second slide groove, the slide bar includes a first slide bar and a second slide bar, the slide bar connecting part includes a first slide bar connecting part and a second slide bar connecting part, the first slide bar passes through the first slide groove and is connected to the first slide bar connecting part, and the second slide bar passes through the second slide groove and is connected to the second slide bar connecting part.

[0014] As a further preferred solution, a reinforcement structure is provided between the first slide bar connecting portion and the second slide bar connecting portion of the lumbar support frame, and a slot for installing a lumbar support mesh is provided on the lumbar support frame.

[0015] As a further preferred solution, the movable bracket is provided with a buffer, and the buffer is used to buffer the friction between the movable bracket and the fixed bracket when the movable bracket moves up and down.

[0016] Further as a preferred embodiment, the buffer includes a ball groove and a ball, the ball groove is provided with a ball cavity for accommodating the ball, and the first axial end of the ball groove is provided with a ball limiting portion including an opening, the ball is accommodated in the ball cavity and part of the ball can pass through the opening of the ball limiting portion, and the second axial end of the ball groove is connected to the movable bracket.

[0017] As a further preferred solution, the lumbar support frame is provided with a buffer component connection part 1 for installing the buffer component, and the movable connecting part is provided with a buffer component connection part 2 for installing the buffer component.

[0018] Further as a preferred solution, a limiting member is provided on the fixed bracket, the limiting member includes a limiting column and a limiting sleeve, the limiting column is connected to the fixed bracket, the limiting sleeve is provided on the limiting column, and the limiting sleeve is made of elastic material.

[0019] Further as a preferred embodiment, an elastic connector connection part 1 is provided on the movable connector, an elastic connector connection part 2 is provided on the fixed bracket 1, the axial first end of the elastic connector is connected to the elastic connector connection part 1, and the axial second end of the elastic connector is connected to the elastic connector connection part 2.

[0020] A chair comprises the seat lumbar support structure as described above.

[0021] The main beneficial effects of the above technical solution are:

[0022] By providing a movable bracket and an elastic connecting piece in the above technical solution, and connecting the elastic connecting piece to the fixed bracket and the movable connecting piece of the movable bracket at the same time, when the user uses the chair seat lumbar support structure, the chair seat lumbar support structure can be adaptively adjusted according to the user's waist curve.

[0023] Further or more detailed beneficial effects will be described in detail in conjunction with specific examples in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 It is a rear view of the lumbar support structure of the chair seat of the utility model.

[0026] Figure 2 The utility model is a schematic diagram of the movable bracket structure of the chair seat lumbar support structure.

[0027] Figure 3 It is a front view of the movable connecting piece of the lumbar support structure of the chair seat of the utility model.

[0028] Figure 4 It is an oblique side perspective view of the movable connecting piece of the lumbar support structure of the chair seat of the utility model.

[0029] Figure 5 It is a rear view of the lumbar support frame of the lumbar support structure of the chair seat of the utility model.

[0030] Figure 6 The utility model is a front view of the waist support frame of the chair seat waist support structure.

[0031] Figure 7 It is a structural schematic diagram of a fixing bracket of a chair seat lumbar support structure of the utility model.

[0032] Figure 8 The utility model is a schematic structural diagram of the cushioning member of the lumbar support structure of the chair seat.

[0033] Fig. 9 It is a partial enlarged view of the lumbar support frame of the lumbar support structure of the chair seat of the utility model.

[0034] As shown in the figure:

[0035] Fixed bracket-1, slide groove-11, movable bracket-3, movable connecting piece-31, slide bar-311, buffer connecting part 2-312, lumbar support-32, slide bar connecting part-321, buffer connecting part 1-322, slot-323, buffer-f, ball slot-f1, ball-f2, limiter-A, elastic connecting piece-5. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the specific implementation of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the implementation of the utility model.

[0037] A chair seat lumbar support structure, such as the attached Figure 1 As shown, the seat lumbar support structure includes: a fixed bracket 1, a movable bracket 3 and an elastic connecting member 5, the fixed bracket 1 is provided with a vertical sliding groove 11, and the movable bracket 3 includes a movable connecting member 31.

[0038] Specifically, as attached Figure 1 As shown, the fixed bracket 1 is used to connect with the backrest bracket of the seat, a vertical slide groove 11 is provided on the fixed bracket 1, the movable connecting member 31 of the movable bracket 3 is slidably connected with the slide groove 11, the axial first end of the elastic connecting member 5 is connected with the fixed bracket 1, and the axial second end of the elastic connecting member 5 is connected with the movable connecting member 31. When the seat lumbar support structure is installed on the seat, the user's waist leans on the seat lumbar support structure, and the seat lumbar support structure will adapt according to the user's waist curve. Specifically, when the user leans on the movable bracket 3 of the seat lumbar support structure to take a nap, the user will change from a sitting position to a lying position. At this time, the movable connecting member 31 of the movable bracket 3 will move downward in the slide groove 11 as the user's waist curve position changes during the process of lying down. Due to the provision of the elastic connecting member 5, the movable connecting member 31 will not suddenly move to the bottom of the slide groove 11 under the action of the elastic connecting member 5, thereby avoiding the user's sense of frustration caused by the sudden movement to the bottom of the slide groove 11. When the user finishes resting and changes from a lying position to a sitting position, the movable connecting member 31 of the movable bracket 3 moves upward in the slide groove 11 as the user's waist curve position changes during the process of sitting up and under the action of the elastic connecting member 5 pulling upward. Therefore, the seat lumbar support structure is adaptively adjusted by providing the movable connecting member 31 and the elastic connecting member 5 to support the user's waist, thereby improving the comfort of use. In addition, the seat lumbar support structure is simple and can be manufactured and used at low cost.

[0039] Furthermore, the movable bracket 3 also includes a waist support frame 32 , the movable connecting member 31 is provided with a slide bar 311 , the waist support frame 32 is provided with a slide bar connecting portion 321 , and the slide bar 311 passes through the slide slot 11 and is connected to the slide bar connecting portion 321 of the waist support frame 32 .

[0040] Specifically, as attached Figure 1 To Attachment Figure 5As shown, the movable support 3 also includes a waist support frame 32 for the user to lean against with his waist directly. The waist support frame 32 is provided with a slide bar connection part 321, and the movable connecting member 31 is provided with a slide bar 311. The slide bar 311 of the movable connecting member 31 can pass through the slide slot 11 and connect with the slide bar connection part 321 of the waist support frame 32. In this way, the movable connecting member 31 can be connected with the waist support frame 32, so that when the user leans against the waist support frame 32, the waist support frame 32 is adaptively adjusted as the movable connecting member 31 moves on the slide slot 11 under the user's leaning.

[0041] Further, the slide groove 11 includes a first slide groove and a second slide groove, the slide bar 311 includes a first slide bar and a second slide bar, the slide bar connecting part 321 includes a first slide bar connecting part and a second slide bar connecting part, the first slide bar passes through the first slide groove and is connected to the first slide bar connecting part, and the second slide bar passes through the second slide groove and is connected to the second slide bar connecting part.

[0042] Specifically, the vertical slide groove 11 provided on the fixed support 1 includes a first slide groove and a second slide groove, the movable support 3 includes a movable connecting member 31 and a lumbar support frame 32, the movable connecting member 31 is provided with a slide bar 311, the slide bar 311 includes a first slide bar and a second slide bar, the lumbar support frame 32 is provided with a slide bar connection portion 321, the slide bar connection portion 321 includes a first slide bar connection portion and a second slide bar connection portion, the first slide bar can pass through the first slide groove and be connected to the first slide bar connection portion, and the second slide bar can pass through the second slide groove and be connected to the second slide bar connection portion. By providing two slide grooves, two slide bars and two slide bar connections, the lumbar support frame 32 is supported by two slide bars, which can increase the stability of the movement of the lumbar support frame 32, and at the same time, it can also prevent the lumbar support frame 32 from tilting to the left / right when the user's waist is leaning on the lumbar support frame 32.

[0043] Furthermore, a reinforcement structure is provided between the first slide bar connecting portion and the second slide bar connecting portion of the waist support frame 32 , and a slot 323 for installing a waist support mesh is provided on the waist support frame 32 .

[0044] Specifically, as attached Figure 5 As shown, in order to enhance the support strength of the waist support frame 32, a reinforcement structure is provided between the first slide bar connection part and the second slide bar connection part of the waist support frame 32, and the reinforcement structure includes reinforcement ribs. When viewed from the front, the reinforcement structure is in a field-shaped structure. In addition, in order to facilitate the installation of the waist support mesh, a clamping groove 323 is provided on the waist support frame 32, and the waist support mesh is clamped in the clamping groove 323. The clamping groove 323 is provided to facilitate the disassembly work when the waist support mesh is damaged or needs to be cleaned.

[0045] Furthermore, the movable bracket 3 is provided with a buffer f, and the buffer f is used to buffer the friction between the movable bracket 3 and the fixed bracket 1 when the movable bracket 3 moves up and down.

[0046] Specifically, as attached Figure 4, Attachment Fig. 9 As shown, in order to buffer the friction between the movable bracket 3 and the fixed bracket 1 when the movable bracket 3 moves up and down, a buffer f is provided on the movable bracket 3. Figure 8 As shown, the buffer member f includes a ball groove f1 and a ball f2, the ball groove f1 is provided with a ball cavity for accommodating the ball f2, and the first axial end of the ball groove f1 is provided with a ball stopper with an opening, the ball f2 is accommodated in the ball cavity and part of the ball f2 can pass through the opening of the ball stopper, and the second axial end of the ball groove f1 is connected to the movable bracket 3. When the movable bracket 3 moves up and down, the ball f2 rolls in the ball cavity and part of the ball f2 that passes through the opening of the ball stopper abuts against the fixed bracket 1, so that the movable bracket 3 will not directly contact the fixed bracket 1 when moving up and down, thereby achieving the effect of buffering the friction between the movable bracket 3 and the fixed bracket 1 when the movable bracket 3 moves up and down. In order to be more stable, the movable bracket 3 is provided with 8 buffers f, of which 4 buffers f are installed on the movable connecting member 31. When the movable connecting member 31 moves up and down, the sphere of the buffer f installed on the movable connecting member 31 abuts against the first surface of the fixed bracket 1; the other 4 buffers f are installed on the waist support frame 32. When the waist support frame 32 moves up and down, the sphere of the buffer f installed on the waist support frame 32 abuts against the second surface of the fixed bracket 1. Among them, the fixed bracket 1 is a plate-shaped bracket, and its first surface and second surface are opposite surfaces. The 4 buffers f installed on the waist support frame 32 are distributed in a rectangular shape, and the 4 buffers f installed on the movable connecting member 31 are also distributed in a rectangular shape. From a perspective, the rectangle of the projection of the 4 buffers on the waist support frame 32 on the fixed bracket 1 is an outer rectangle, and the outer rectangle surrounds the two slide grooves 11. The rectangle of the projection of the 4 buffers on the movable connecting member 31 on the fixed bracket 1 is an inner rectangle, and the inner rectangle is between the two slide grooves 11. Through such a setting, the buffers f can be reasonably configured. By installing four buffers f on the lumbar support frame 32, the projection of the four buffers f on the fixed support 1 forms an outer rectangle, and the outer rectangle surrounds the two slide grooves 11. Thus, the movable support 3 is also supported by the four buffers f provided on the lumbar support frame 32, thereby preventing the movable support 3 from tilting to the left / right when the user leans on the lumbar support frame 32; by installing four buffers f on the movable connecting member 31, the projection of the four buffers f on the fixed support 1 forms an inner rectangle, and the inner rectangle is between the two slide grooves 11, that is, the four buffers f abut against the middle part of the fixed support 1, thereby enhancing the supporting force of the middle part of the movable connecting member 31. Therefore, by providing eight buffers f in the above manner, it is possible to prevent the movable support 3 from tilting to the left / right, and at the same time, make the movable support 3 more stable when moving up and down. Furthermore, in order to facilitate the connection of the buffers f, as shown in the attached Figure 5 As shown, the waist support frame 32 is provided with a buffer member connecting portion 322 for mounting the buffer member f, as shown in the attached Figure 3As shown, a buffer connecting part 2 312 for installing the buffer f is provided on the movable connecting part 31, the second axial end of the ball groove f1 of the four buffers f installed on the lumbar support frame 32 is connected to the buffer connecting part 1 322, and the second axial end of the ball groove f1 of the four buffers f installed on the movable connecting part 31 is connected to the buffer connecting part 2 312.

[0047] Furthermore, a limiting member A is provided on the fixed bracket 1. The limiting member A includes a limiting column and a limiting sleeve. The limiting column is connected to the fixed bracket 1. The limiting sleeve is sleeved on the limiting column. The limiting sleeve is made of elastic material.

[0048] Specifically, as attached Figure 1 , Attachment Figure 7 As shown, in order to limit the movable connecting member 31 to prevent the movable connecting member 31 from colliding with the fixed bracket 1 and causing discomfort to the user, that is, the movable connecting member 31 collides with the fixed bracket 1 when it moves up to the top of the slide groove 11 and causes discomfort to the user when it moves down to the bottom of the slide groove 11, a limiting member A is provided on the fixed bracket 1, and the limiting member A includes a limiting column and a limiting sleeve, the limiting column is connected to the fixed bracket 1, and the limiting sleeve is arranged on the limiting column, when the movable connecting member 31 moves up or down to the top or bottom of the slide groove 11, the movable connecting member 31 abuts against the limiting sleeve, and the limiting sleeve is made of elastic material. Since the limiting sleeve is made of elastic material, when the movable connecting member 31 moves to abut against the limiting sleeve, the limiting sleeve will buffer the force of the movable connecting member 31 colliding with it, thereby avoiding discomfort to the user caused by the collision of the movable connecting member 31 with the fixed bracket 1, and at the same time avoiding the noise generated by the collision of the movable connecting member 31 with the fixed bracket 1, thereby further improving the comfort of the user.

[0049] Furthermore, an elastic connector connection part 1 is provided on the movable connector 31, an elastic connector connection part 2 is provided on the fixed bracket 1, the axial first end of the elastic connector 5 is connected to the elastic connector connection part 1, and the axial second end of the elastic connector 5 is connected to the elastic connector connection part 2.

[0050] Specifically, as attached Figure 1 As shown, in order to facilitate the connection of the elastic connector 5 with the fixed bracket 1 and the movable bracket 3, an elastic connector connection part 1 is provided on the movable connector 31, and an elastic connector connection part 2 is provided on the fixed bracket 1. The axial first end of the elastic connector 5 is connected to the elastic connector connection part 1, and the axial second end of the elastic connector 5 is connected to the elastic connector connection part 2, thereby facilitating the connection of the elastic connector 5 to the fixed bracket 1 and the movable bracket 3. Preferably, the elastic connector 5 is a spring.

[0051] A chair comprises the seat lumbar support structure as described above.

[0052] Specifically, the seat lumbar support structure is installed on the seat, and more specifically, the fixed bracket of the seat lumbar support structure is connected to the backrest bracket of the seat, so that the backrest bracket of the seat supports the seat lumbar support structure, so that when the user sits on the seat and leans against the seat lumbar support structure, the lumbar support of the seat can be adaptively adjusted according to the waist curve of the user.

[0053] In summary, through the above embodiments, the lumbar support structure of the seat can be adaptively adjusted according to the waist curve of the user, thereby improving the comfort of the user.

[0054] The above are only preferred embodiments of the utility model, and do not limit the scope of the utility model. In addition, the terms "vertical", "lateral", "front", "rear", etc. mentioned in the embodiments of the utility model indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model. It should be further explained that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like in the description should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances. The utility model will be described in detail with reference to the drawings and in combination with the embodiments.

[0055] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A chair seat lumbar support structure, characterized in that: include: A fixed bracket (1), the fixed bracket (1) being connected to a backrest bracket of the seat, the fixed bracket (1) being provided with a vertical slide groove (11); A movable bracket (3), the movable bracket (3) comprising a movable connecting member (31), the movable connecting member (31) being slidably connected to the slide groove (11); An elastic connecting member (5), wherein a first axial end of the elastic connecting member (5) is connected to the fixed bracket (1), and a second axial end of the elastic connecting member (5) is connected to the movable connecting member (31).

2. A chair seat lumbar support structure according to claim 1, characterized in that: The movable support (3) further comprises a waist support frame (32), the movable connecting member (31) is provided with a slide bar (311), the waist support frame (32) is provided with a slide bar connecting portion (321), and the slide bar (311) passes through the slide groove (11) and is connected to the slide bar connecting portion (321) of the waist support frame (32).

3. A chair seat lumbar support structure according to claim 2, characterized in that: The slide groove (11) comprises a first slide groove and a second slide groove, the slide bar (311) comprises a first slide bar and a second slide bar, the slide bar connecting portion (321) comprises a first slide bar connecting portion and a second slide bar connecting portion, the first slide bar passes through the first slide groove and is connected to the first slide bar connecting portion, and the second slide bar passes through the second slide groove and is connected to the second slide bar connecting portion.

4. The seat lumbar support structure according to claim 3, characterized in that: A reinforcement structure is provided between the first slide bar connecting portion and the second slide bar connecting portion of the waist support frame (32), and a slot (323) for installing a waist support mesh cloth is provided on the waist support frame (32).

5. The seat lumbar support structure according to claim 4, characterized in that: The movable bracket (3) is provided with a buffer (f), and the buffer (f) is used to buffer the friction force between the movable bracket (3) and the fixed bracket (1) when the movable bracket (3) moves up and down.

6. The seat lumbar support structure according to claim 5, characterized in that: The buffer member (f) comprises a ball groove (f1) and a ball (f2); the ball groove (f1) is provided with a ball cavity for accommodating the ball (f2); a first axial end of the ball groove (f1) is provided with a ball limiting portion including an opening; the ball (f2) is accommodated in the ball cavity and a portion of the ball (f2) can pass through the opening of the ball limiting portion; and a second axial end of the ball groove (f1) is connected to the movable bracket (3).

7. The seat lumbar support structure according to claim 5, characterized in that: The waist support frame (32) is provided with a first buffer member connecting portion (322) for mounting the buffer member (f), and the movable connecting member (31) is provided with a second buffer member connecting portion (312) for mounting the buffer member (f).

8. The seat lumbar support structure according to claim 1, characterized in that: The fixed bracket (1) is also provided with a limiting member (A), the limiting member (A) comprising a limiting column and a limiting sleeve, the limiting column is connected to the fixed bracket (1), the limiting sleeve is sleeved on the limiting column, and the limiting sleeve is made of elastic material.

9. The seat lumbar support structure according to claim 1, characterized in that: An elastic connector connection part 1 is provided on the movable connector (31), an elastic connector connection part 2 is provided on the fixed bracket (1), a first axial end of the elastic connector (5) is connected to the elastic connector connection part 1, and a second axial end of the elastic connector (5) is connected to the elastic connector connection part 2.

10. A seat, characterized in that: It comprises the chair seat lumbar support structure as claimed in any one of claims 1 to 9.

Images