Waist supporting device and seat

Abstract

The waist supporting device comprises a back support, a waist rest and an adjusting assembly, the waist rest is connected with the back support through the adjusting assembly, and a user can adjust the waist rest through the adjusting assembly to enable the waist rest to incline forwards or backwards, so that the waist of the user can be better supported, and user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat manufacturing, in particular to a waist supporting device and a seat. Background Art

[0002] The structure of the seat includes a seat cushion, a backrest, armrests and a lumbar support. The lumbar support can provide support for the human waist and can greatly improve comfort. However, in the related art, the lumbar support of some seats is fixed on the back support and cannot be adjusted according to the user's needs, which affects the user's experience. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a waist support device that can be adjusted forward and backward to support the user's waist, which is conducive to improving user experience.

[0004] In a second aspect, the utility model also proposes a seat using the above-mentioned lumbar support device.

[0005] According to the first aspect of the present invention, a waist support device is provided, comprising:

[0006] Back support;

[0007] a lumbar support connected to the back support via an adjustment assembly;

[0008] The adjustment assembly comprises a first connecting member, a rotating shaft, an adjusting knob, an adjusting driving member, an adjusting member and a second connecting member, wherein the first connecting member is connected to the back support and is located at the front side of the back support, the first connecting member is provided with a guide groove extending toward the front side and tilted upward, the rotating shaft is provided on the first connecting member and can rotate, the adjusting knob is provided at the end of the rotating shaft, the adjusting driving member is provided at the middle of the rotating shaft, the second connecting member is rotatably connected to the rotating shaft, the lumbar support is connected to the second connecting member, a guide column is provided at the lower end of the adjusting member, the guide column is passed through the guide groove, the upper end of the adjusting member is provided between the lumbar support and the second connecting member, and can slide relative to the lumbar support and the second connecting member;

[0009] Among them, by rotating the adjusting knob, the adjusting knob drives the adjusting drive member to rotate through the rotating shaft, and the adjusting drive member can drive the adjusting member to move, the guide column at the lower end of the adjusting member can slide along the guide groove, and the upper end of the adjusting member can drive the second connecting member to rotate, and the rotation of the second connecting member can drive the lumbar support to tilt forward or backward.

[0010] The lumbar support device provided in accordance with the embodiment of the first aspect of the utility model has at least the following beneficial effects: when the lumbar support device is applied to a seat, when the user needs to adjust the position of the lumbar support forward or backward, the user can turn the adjustment knob, and the adjustment knob drives the adjustment drive member to rotate via the rotating shaft, and the adjustment drive member can drive the adjustment member to move, and the guide column at the lower end of the adjustment member can slide along the guide groove, and the upper end of the adjustment member can drive the second connecting member to rotate, and the rotation of the second connecting member can drive the lumbar support to tilt forward or backward, thereby completing the adjustment of the lumbar support position, so that the lumbar support can reasonably support the user's waist, which is beneficial to improving user experience.

[0011] According to the lumbar support device provided by the embodiment of the first aspect of the utility model, support plates are provided on the left and right sides of the first connecting member, each of the guide grooves is provided with the guide groove, and the two ends of the guide column are respectively inserted into one of the guide grooves.

[0012] According to the lumbar support device provided by the embodiment of the first aspect of the utility model, a sleeve is provided at the lower end of the adjusting member, and the guide column is fixed in the sleeve.

[0013] According to the lumbar support device provided by the embodiment of the first aspect of the utility model, the second connecting member is provided with a receiving groove, and the adjusting driving member is arranged in the receiving groove.

[0014] According to the lumbar support device provided by the embodiment of the first aspect of the utility model, a slide groove is provided on the front side of the second connecting member, and the upper end of the adjusting member is inserted into the slide groove and can slide.

[0015] According to the lumbar support device provided by the embodiment of the first aspect of the utility model, the adjustment drive member is a gear, and the rear side of the adjustment member is provided with tooth grooves arranged from top to bottom, and the gear is meshed with the tooth grooves.

[0016] According to the lumbar support device provided by the embodiment of the first aspect of the utility model, the adjustment component includes two adjustment knobs, and the two adjustment knobs are respectively disposed at two ends of the rotating shaft in the length direction.

[0017] According to the lumbar support device provided by the embodiment of the first aspect of the utility model, a mounting groove is provided on the front side of the back support, and the adjustment assembly is located in the mounting groove.

[0018] According to the lumbar support device provided by the embodiment of the first aspect of the utility model, the first connecting member is in a square shape, screw holes are provided at the four corners of the first connecting member, a connecting column is provided in the installation groove, and a fastener is provided in the screw hole to fix the first connecting member on the connecting column.

[0019] The seat provided according to the embodiment of the second aspect of the utility model comprises the lumbar support device as described in the embodiment of the first aspect of the utility model.

[0020] The seat provided in accordance with the embodiment of the second aspect of the utility model has at least the following beneficial effects: when the user needs to adjust the position of the lumbar support forward and backward, the user can turn the adjustment knob, which drives the adjustment drive member to rotate via the rotating shaft, and the adjustment drive member can drive the adjustment member to move, and the guide column at the lower end of the adjustment member can slide along the guide groove, and the upper end of the adjustment member can drive the second connecting member to rotate, and the rotation of the second connecting member can drive the lumbar support to tilt forward or backward, thereby completing the adjustment of the lumbar support position, so that the lumbar support can reasonably support the user's waist, which is beneficial to improving user experience.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 An overall schematic diagram of a lumbar support device provided by an embodiment of the first aspect of the utility model;

[0024] Figure 2 An exploded schematic diagram of a lumbar support device provided by an embodiment of the first aspect of the utility model;

[0025] Figure 3 A cross-sectional view of a lumbar support device provided by an embodiment of the first aspect of the utility model;

[0026] Figure 4 A schematic diagram of the structure of a lumbar support and an adjustment assembly provided by an embodiment of the first aspect of the utility model;

[0027] Figure 5 A schematic diagram of an exploded view of an adjustment assembly provided in an embodiment of the first aspect of the utility model.

[0028] The figures are as follows:

[0029] Back support 100; mounting slot 110; connecting column 120;

[0030] Lumbar support 200;

[0031] Adjustment assembly 300; first connection member 310; guide groove 311; support plate 312; rotation shaft 320; adjustment knob 330; adjustment drive member 340; adjustment member 350; guide column 351; sleeve 352; second connection member 360; receiving groove 361; slide groove 362. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0034] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] In the related art, the structure of a seat includes a seat cushion, a backrest, armrests and a lumbar support. The lumbar support can provide support for the human waist and can greatly improve comfort. However, in the related art, the lumbar support of some seats is fixed on the back support and cannot be adjusted according to the user's needs; although the lumbar support of another part of the seats can be adjusted, the adjustment method is more cumbersome, which affects the user experience.

[0037] To solve this problem, the first embodiment of the present invention provides a lumbar support device. The lumbar support 200 can be adjusted in the front and rear directions by turning the adjustment knob 330. The adjustment method is simple and reliable. The adjusted lumbar support 200 can better support the user's waist, which is beneficial to improving the user experience. The specific structure and function of the lumbar support device provided by the embodiment of the present invention will be further explained in combination with text and drawings.

[0038] Reference Figure 1 and Figure 2According to the first aspect of the present invention, the lumbar support device provided by the embodiment includes: a back support 100, a lumbar support 200 and an adjustment component 300. The lumbar support 200 is connected to the back support 100 through the adjustment component 300. The user can adjust the lumbar support 200 through the adjustment component 300 to make the lumbar support 200 lean forward or backward, thereby better supporting the user's waist and improving the user experience.

[0039] Reference Figures 3 to 5 In some embodiments, the adjustment assembly 300 includes a first connecting member 310, a rotating shaft 320, an adjusting knob 330, an adjusting driving member 340, an adjusting member 350 and a second connecting member 360. The first connecting member 310 is connected to the back support 100 and is located at the front side of the back support 100. The first connecting member 310 is provided with a guide groove 311 extending toward the front side and tilted upward. The rotating shaft 320 is provided on the first connecting member 310 and can rotate. The adjusting knob 330 is provided at the end of the rotating shaft 320. The adjusting driving member 340 is provided in the middle of the rotating shaft 320. The second connecting member 360 is sleeved on the outer periphery of the rotating shaft 320 and can rotate. The lumbar support 200 is connected to the second connecting member 360. , a guide column 351 is provided at the lower end of the adjustment member 350, and the guide column 351 is inserted into the guide groove 311, and the upper end of the adjustment member 350 is arranged between the lumbar support 200 and the second connecting member 360, and can slide up and down relative to the lumbar support 200 and the second connecting member 360; wherein, by rotating the adjustment knob 330, the adjustment knob 330 drives the adjustment driving member 340 to rotate through the rotating shaft 320, and the adjustment driving member 340 can drive the adjustment member 350 to move, and the guide column 351 at the lower end of the adjustment member 350 can slide along the guide groove 311, and the upper end of the adjustment member 350 can drive the second connecting member 360 to rotate, and the rotation of the second connecting member 360 can drive the lumbar support 200 to tilt forward or backward.

[0040] According to the lumbar support device provided by the embodiment of the first aspect of the utility model, the lumbar support device is applied to the seat. When the user needs to adjust the position of the lumbar support 200 forward or backward, the user can rotate the adjustment knob 330. The adjustment knob 330 drives the adjustment drive member 340 to rotate through the rotating shaft 320. The adjustment drive member 340 can drive the adjustment member 350 to move. The guide column 351 at the lower end of the adjustment member 350 can slide along the guide groove 311. The upper end of the adjustment member 350 can drive the second connecting member 360 to rotate. The rotation of the second connecting member 360 can drive the lumbar support 200 to tilt forward or backward, thereby completing the adjustment of the position of the lumbar support 200, so that the lumbar support 200 can reasonably support the user's waist, which is beneficial to improving the user experience.

[0041] It should be noted that when the user needs to adjust the lumbar support 200 forward, the user turns the adjustment knob 330. The adjustment knob 330 drives the adjustment drive member 340 to rotate via the rotating shaft 320. The adjustment drive member 340 can drive the adjustment member 350 to move upward. Under the guidance of the guide groove 311, the adjustment member 350 can drive the second connecting member 360 to rotate forward, thereby driving the lumbar support 200 to lean forward. When the user needs to adjust the lumbar support 200 backward, the user turns the adjustment knob 330. The adjustment knob 330 drives the adjustment drive member 340 to rotate via the rotating shaft 320. The adjustment drive member 340 can drive the adjustment member 350 to move downward. Under the guidance of the guide groove 311, the adjustment member 350 can drive the second connecting member 360 to rotate backward, thereby driving the lumbar support 200 to lean backward.

[0042] It is understandable that when the user's waist abuts against the lumbar support 200 , the inner wall of the inclined guide slot 311 can support the adjusting member 350 so that the adjusting member 350 does not drop, thereby realizing the function of automatically locking the lumbar support 200 .

[0043] Reference Figures 3 to 5 According to the lumbar support device provided by the embodiment of the first aspect of the utility model, support plates 312 are provided on the left and right sides of the first connecting member 310, and a guide groove 311 is provided on each guide end groove. The two ends of the guide column 351 are respectively penetrated into a guide groove 311, and the two guide grooves 311 guide the two ends of the guide column 351 at the same time, which is beneficial to improve the stability of the guidance.

[0044] Reference Figure 4 and Figure 5 According to the lumbar support device provided by the embodiment of the first aspect of the utility model, a sleeve 352 is provided at the lower end of the adjusting member 350, and the guide column 351 is fixed in the sleeve 352. The connection method between the guide column 351 and the adjusting member 350 is simple and reliable.

[0045] It is understandable that the guide post 351 and the adjusting member 350 may both be plastic parts, and the guide post 351 and the adjusting member 350 may be an integrally formed structure, which may be formed by injection molding.

[0046] Reference Figure 3 According to the lumbar support device provided by the embodiment of the first aspect of the utility model, the second connecting member 360 is recessed to form a receiving groove 361, and the adjusting driving member 340 is arranged in the receiving groove 361, which is conducive to improving the compactness of the structure.

[0047] Reference Figures 3 to 5According to the lumbar support device provided by the embodiment of the first aspect of the utility model, a slide groove 362 is provided on the front side of the second connecting member 360, and the upper end of the adjusting member 350 is passed through the slide groove 362 and can slide. The slide groove 362 can limit the position of the upper end of the adjusting member 350 to prevent the position of the adjusting member 350 from being offset during the action.

[0048] Reference Figures 3 to 5 According to the lumbar support device provided by the embodiment of the first aspect of the utility model, the adjusting driving member 340 is a gear, and the rear side of the adjusting member 350 is provided with tooth grooves arranged from top to bottom. The driving of the adjusting member 350 is achieved by meshing the gear and the tooth groove, and the driving method is simple and reliable.

[0049] Reference Figure 4 According to the lumbar support device provided by the embodiment of the first aspect of the utility model, the adjustment component 300 includes two adjustment knobs 330, and the two adjustment knobs 330 are respectively disposed at both ends of the length direction of the rotating shaft 320. The user can adjust the front and rear position of the lumbar support 200 by rotating the adjustment knob 330 on either side, and the operation is simple and convenient.

[0050] Reference Figure 1 and Figure 2 According to the lumbar support device provided by the embodiment of the first aspect of the utility model, a mounting groove 110 is provided on the front side of the back support 100, and the adjustment component 300 is located in the mounting groove 110, which is conducive to improving the compactness of the structure.

[0051] Reference Figures 3 to 5 According to the lumbar support device provided by the embodiment of the first aspect of the utility model, the first connecting member 310 is in a square shape, and screw holes are provided at the four corners of the first connecting member 310. A connecting column 120 is provided in the installation groove 110, and a fastener is provided in the screw hole to fix the first connecting member 310 on the connecting column 120. The connection method between the first connecting member 310 and the back bracket 100 is stable and reliable.

[0052] The seat provided according to the embodiment of the second aspect of the utility model comprises the lumbar support device as in the embodiment of the first aspect of the utility model.

[0053] According to the chair provided by the embodiment of the second aspect of the utility model, when the user needs to adjust the position of the lumbar support 200 forward or backward, the user can rotate the adjustment knob 330. The adjustment knob 330 drives the adjustment drive member 340 to rotate through the rotating shaft 320. The adjustment drive member 340 can drive the adjustment member 350 to move. The guide column 351 at the lower end of the adjustment member 350 can slide along the guide groove 311. The upper end of the adjustment member 350 can drive the second connecting member 360 to rotate. The rotation of the second connecting member 360 can drive the lumbar support 200 to tilt forward or backward, thereby completing the adjustment of the position of the lumbar support 200, so that the lumbar support 200 can reasonably support the user's waist, which is conducive to improving the user experience.

[0054] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit it. The present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A lumbar support device, characterized in that: include: Back support; a lumbar support connected to the back support via an adjustment assembly; The adjustment assembly comprises a first connecting member, a rotating shaft, an adjusting knob, an adjusting driving member, an adjusting member and a second connecting member, wherein the first connecting member is connected to the back support and is located at the front side of the back support, the first connecting member is provided with a guide groove extending toward the front side and tilted upward, the rotating shaft is provided on the first connecting member and can rotate, the adjusting knob is provided at the end of the rotating shaft, the adjusting driving member is provided at the middle of the rotating shaft, the second connecting member is rotatably connected to the rotating shaft, the lumbar support is connected to the second connecting member, a guide column is provided at the lower end of the adjusting member, the guide column is passed through the guide groove, the upper end of the adjusting member is provided between the lumbar support and the second connecting member, and can slide relative to the lumbar support and the second connecting member; Among them, by rotating the adjusting knob, the adjusting knob drives the adjusting drive member to rotate through the rotating shaft, and the adjusting drive member can drive the adjusting member to move, the guide column at the lower end of the adjusting member can slide along the guide groove, and the upper end of the adjusting member can drive the second connecting member to rotate, and the rotation of the second connecting member can drive the lumbar support to tilt forward or backward.

2. The lumbar support device according to claim 1, characterized in that: Support plates are provided on the left and right sides of the first connecting member, and each of the guide grooves is provided with the guide groove, and the two ends of the guide column are respectively passed through one of the guide grooves.

3. The lumbar support device according to claim 2, characterized in that: A sleeve is provided at the lower end of the adjusting member, and the guide column is fixed in the sleeve.

4. The lumbar support device according to claim 1, characterized in that: The second connecting member is provided with a receiving groove, and the adjusting driving member is arranged in the receiving groove.

5. The lumbar support device according to claim 4, characterized in that: A sliding groove is provided on the front side of the second connecting member, and the upper end of the adjusting member is inserted into the sliding groove and can slide.

6. The lumbar support device according to claim 1, characterized in that: The adjusting driving member is a gear, and the rear side of the adjusting member is provided with tooth grooves arranged from top to bottom, and the gear is meshed with the tooth grooves.

7. The lumbar support device according to claim 1, characterized in that: The adjustment component includes two adjustment knobs, and the two adjustment knobs are respectively disposed at two ends of the rotating shaft in the length direction.

8. The lumbar support device according to claim 1, characterized in that: A mounting groove is provided on the front side of the back support, and the adjustment component is located in the mounting groove.

9. The lumbar support device according to claim 8, characterized in that: The first connecting member is in a square shape, and screw holes are arranged at four corners of the first connecting member. A connecting column is arranged in the installation groove, and a fastener is arranged in the screw hole to fix the first connecting member on the connecting column.

10. A seat, characterized in that: Comprising a lumbar support device as claimed in any one of claims 1 to 9.

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