Waist rest structure and seat with same

Abstract

The utility model discloses a waist rest structure and a seat with the waist rest structure. The waist rest structure comprises a waist pillow, the outer frame is arranged around the waist pillow, and the position of the waist pillow is adjustable relative to the outer frame in the front-back direction. According to the waist rest structure, the outer frame is arranged around the waist pillow, the position of the waist pillow relative to the outer frame in the front-back direction is adjustable, and after the overall position of the waist rest structure is adjusted, the relative position of the waist pillow and the outer frame in the front-back direction can be adjusted in a small range according to the actual use requirement of a user; the requirements of different users for the supporting performance of the waist rest structure are met, the waists of the users are better protected, the use experience of the users is improved, and the satisfaction degree of the users is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a lumbar support structure and a seat having the same. Background Art

[0002] During daily work and study, long periods of sitting or standing not only harm the spine and cervical spine, but also cause great damage to the waist. In the existing technology, the lumbar support on the chair often cannot meet the support requirements of different users, and the user experience is poor. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a lumbar support structure that can meet the support requirements of different users for the lumbar support structure, better protect the user's waist, improve the user experience, and increase user satisfaction.

[0004] The utility model also provides a seat, which includes the above-mentioned lumbar support structure.

[0005] The lumbar support structure according to the embodiment of the present invention includes: a lumbar pillow; an outer frame, wherein the outer frame is arranged around the lumbar pillow, and the position of the lumbar pillow is adjustable along the front-back direction relative to the outer frame.

[0006] According to the lumbar support structure of the embodiment of the present invention, the lumbar pillow is arranged around the outer frame, and the position of the lumbar pillow relative to the outer frame in the front-to-back direction is adjustable. After the overall position adjustment of the lumbar support structure is completed, the relative position of the lumbar pillow and the outer frame in the front-to-back direction can be slightly adjusted according to the actual usage needs of the user, so as to meet the support requirements of different users for the lumbar support structure, better protect the user's waist, improve the user experience, and improve the user satisfaction.

[0007] In addition, the lumbar support structure according to the present invention may also have the following additional technical features:

[0008] In some embodiments, the lumbar support structure further includes: an adjustment structure, which is arranged between the lumbar pillow and the outer frame and connected to the lumbar pillow and the outer frame, and is used to adjust the relative position of the lumbar pillow and the outer frame along the front-to-back direction.

[0009] In some embodiments, the adjustment structure includes: a base, which is connected to the outer frame and has a plurality of teeth and grooves spaced apart along the front-to-back direction; a claw, which is provided on the lumbar pillow and has teeth, and the teeth can be selectively matched with different teeth and grooves.

[0010] In some embodiments, in a top-down direction, the front wall of the latching tooth is tilted backward, the rear wall of the latching tooth is tilted backward or extends in an up-down direction, and the tooth groove has the same shape as the latching tooth.

[0011] In some embodiments, the adjustment structure further includes: an elastic member, which is provided on the lumbar pillow and abuts against the claw, and is used to drive the locking teeth to cooperate with the tooth grooves.

[0012] In some embodiments, the adjustment structure also includes: a slider, which is arranged on the lumbar pillow, and the slider has a cavity and an opening, the opening is arranged on the inner bottom wall of the cavity, the claw is arranged in the cavity and can move back and forth with the slider, and the tooth is suitable for extending from the opening to cooperate with the tooth groove.

[0013] In some embodiments, a first positioning hole and a second positioning hole are provided on the outer wall of the slider, the second positioning hole is located on the rear side of the first positioning hole, the second positioning hole has a first hole section extending in the up and down directions, and a first positioning column and a second positioning column are provided on the claw, the first positioning column is passed through the first positioning hole, and the second positioning column is passed through the second positioning hole and is movable in the first hole section.

[0014] In some embodiments, the first positioning hole extends in the front-to-back direction, the second positioning hole also includes a second hole section, the second hole section is connected to the upper end of the first hole section and extends rearward, the base is provided with a slide groove, the slider is movably arranged in the slide groove along the front-to-back direction, at least one of the two side walls of the slide groove opposite to each other in the left and right directions has a guide groove extending in the front-to-back direction, part of the guide groove is arranged opposite to the first positioning hole, the first positioning post is simultaneously passed through the first positioning hole and the guide groove, when the latch tooth is located on the upper side of the tooth groove at the front end, the first positioning post is suitable for abutting against the rear side wall of the first positioning hole, and the second positioning post is suitable for abutting against the rear side wall of the second hole section, when the latch tooth is located on the upper side of the tooth groove at the rear end, the first positioning post is suitable for abutting against the rear side wall of the guide groove and spaced apart from the rear side wall of the first positioning hole.

[0015] In some embodiments, the slider is a nylon part and includes: a main body and a fixing plate, the main body has a mounting groove, the opening is provided on the inner bottom wall of the mounting groove, the upper side and one side along the left and right directions of the mounting groove are open, the fixing plate cover is provided at the open opening in the left and right directions of the mounting groove, the main body and the fixing plate jointly define the cavity, and the main body and the fixing plate are connected by fasteners.

[0016] In some embodiments, the outer peripheral wall of the lumbar pillow is provided with a plurality of grooves, and the plurality of grooves are arranged at intervals along the circumferential direction of the lumbar pillow. The grooves penetrate the lumbar pillow in the front-to-back direction, and the inner peripheral wall of the outer frame is provided with a plurality of protrusions, and the plurality of protrusions correspond one-to-one to the plurality of grooves.

[0017] The utility model also provides a seat with the above embodiment.

[0018] According to the seat of the embodiment of the present invention, the above-mentioned lumbar support structure is provided, and the lumbar pillow is arranged around the outer frame. The position of the lumbar pillow relative to the outer frame in the front-to-back direction is adjustable. After the overall position adjustment of the lumbar support structure is completed, the relative position of the lumbar pillow and the outer frame in the front-to-back direction can be slightly adjusted according to the actual usage needs of the user, so as to meet the support requirements of different users for the lumbar support structure, better protect the user's waist, improve the user experience, and improve the user's satisfaction.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a three-dimensional view of a lumbar support structure according to an embodiment of the present utility model from one angle;

[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 is a three-dimensional view of the lumbar support structure according to an embodiment of the present invention from another angle;

[0024] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0025] Figure 5 This is a front view of the lumbar support structure according to an embodiment of the present utility model;

[0026] Figure 6 This is a left side view of the lumbar support structure according to an embodiment of the present utility model;

[0027] Figure 7 This is an exploded view of a lumbar support structure according to an embodiment of the present invention from one angle;

[0028] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0029] Figure 9 is an exploded view of the lumbar support structure according to an embodiment of the present invention from another angle;

[0030] Figure 10 yes Figure 9 Enlarged view of point D in the middle;

[0031] Figure 11 This is a three-dimensional diagram of the adjustment structure of the lumbar support structure according to an embodiment of the present utility model;

[0032] Figure 12 This is a perspective view of the adjustment structure of the lumbar support structure according to an embodiment of the present invention, wherein the base is not shown;

[0033] Figure 13 It is a three-dimensional diagram of the adjustment structure of the lumbar support structure according to an embodiment of the present utility model, wherein the base and the fixing plate are not shown.

[0034] Reference numerals:

[0035] 100. Lumbar support structure;

[0036] 1. Lumbar pillow; 11. Groove; 12. Fourth positioning hole;

[0037] 2. Outer frame; 21. Protrusion; 22. Third positioning hole;

[0038] 3. Adjustment structure; 31. Base; 311. Slide groove; 312. Guide groove; 313. Buckle; 32. Claw; 321. Tooth; 322. First positioning column; 323. Second positioning column; 33. Elastic member; 331. First section; 332. Second section; 333. Positioning section; 34. Slider; 340. Cavity; 341. Body; 342. Fixing plate; 343. Opening; 344. Mounting groove; 345. Fastener; 346. First positioning hole; 347. Second positioning hole; 3471. First hole section; 3472. Second hole section; 348. Positioning member; 349. Fifth positioning hole. DETAILED DESCRIPTION

[0039] The following describes in detail embodiments of the present invention. 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships 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 should not be understood as a limitation to the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0042] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0043] The lumbar support structure 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0044] like Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, the lumbar support structure 100 according to an embodiment of the present invention includes a lumbar pillow 1 and an outer frame 2 .

[0045] Specifically, refer to the attached Figure 1 and attached Figure 5 As shown, the outer frame 2 is arranged around the lumbar pillow 1, which can protect the lumbar pillow 1 in the circumferential direction of the lumbar pillow 1 and extend the service life of the lumbar pillow 1. The outer frame 2 and the lumbar pillow 1 can support the user's waist when the user sits on the seat, provide protection for the user's waist, and improve the user's comfort.

[0046] Furthermore, the lumbar pillow 1 is relatively close to the outer frame 2 along the front-to-back direction (such as Figure 6The lumbar support structure 100 is positionally adjustable (as shown). After the overall position of the lumbar support structure 100 is adjusted, the relative position of the lumbar pillow 1 and the outer frame 2 in the front-to-back direction can be slightly adjusted according to the user's actual usage needs. This satisfies different users' requirements for the support of the lumbar support structure 100, better protects the user's waist, improves the user's experience, and increases user satisfaction. It is understandable that when a massage head is installed inside the lumbar pillow 1, the user can adjust the relative position of the lumbar pillow 1 and the outer frame 2 in the front-to-back direction according to their own usage needs to fine-tune the massage head, increase or decrease the contact area between the massage head and the human body, and meet the massage needs of different users.

[0047] Preferably, lumbar pillow 1 is made of nylon. Nylon has high strength, good elasticity, resilience, heat resistance, corrosion resistance, electrical insulation, fatigue resistance, and self-lubrication. It is easy to process, which can reduce the production and processing costs of lumbar pillow 1 and facilitate the lightweight design of lumbar support structure 100. Furthermore, due to the high strength of nylon, lumbar pillow 1 can withstand greater stress and pressure, avoiding deformation caused by the user leaning on or squeezing, thereby improving the reliability and stability of lumbar pillow 1.

[0048] Preferably, the outer frame 2 is made of nylon. Nylon has high strength, good elasticity, resilience, heat resistance, corrosion resistance, electrical insulation, fatigue resistance, and self-lubrication. It is also easy to process, which can reduce the production and processing costs of the outer frame 2 and facilitate the lightweight design of the lumbar support structure 100. Furthermore, due to the high strength of nylon, the outer frame 2 can withstand high stress and pressure, preventing deformation caused by the user leaning on or squeezing, thereby improving the reliability and stability of the outer frame 2.

[0049] According to the lumbar support structure 100 of the embodiment of the present invention, the outer frame 2 is arranged around the lumbar pillow 1, and the position of the lumbar pillow 1 relative to the outer frame 2 is adjustable along the front-to-back direction. After the overall position adjustment of the lumbar support structure 100 is completed, the relative position of the lumbar pillow 1 and the outer frame 2 in the front-to-back direction can be slightly adjusted according to the actual usage needs of the user, so as to meet the support requirements of different users for the lumbar support structure 100, better protect the user's waist, improve the user experience, and improve the user's satisfaction.

[0050] In some embodiments of the present invention, Figure 2 and attached Figure 4 As shown, the lumbar support structure 100 also includes an adjustment structure 3, which is arranged between the lumbar pillow 1 and the outer frame 2 and connected to the lumbar pillow 1 and the outer frame 2, and is used to adjust the relative position of the lumbar pillow 1 and the outer frame 2 along the front-to-back direction. It can better adjust the relative position of the lumbar pillow 1 and the outer frame 2 in the front-to-back direction according to the actual usage needs of the user, so as to meet the support requirements of different users for the lumbar support structure 100, better protect the user's waist, improve the user's usage experience, and improve the user's satisfaction.

[0051] In some embodiments of the present invention, Figure 8 and attached Figure 10 As shown, combined with reference Figure 7 and Figure 9 The locking mechanism 32 is configured to lock the lumbar pillow 1 and the outer frame 2 in the forward and backward directions, so that the user can adjust the position of the lumbar pillow 1 and the outer frame 2 in the forward and backward directions.

[0052] In a specific example, see the attached Figure 13 As shown, the claw 32 has two latching teeth 321, and the two latching teeth 321 are arranged in the front-to-back direction. The two latching teeth 321 can respectively cooperate with the two adjacent tooth grooves, thereby improving the structural strength of the claw 32, improving the clamping strength between the claw 32 and the base 31, and improving the reliability of the cooperation between the claw 32 and the base 31, thereby ensuring the relative position of the lumbar pillow 1 and the outer frame 2 in the front-to-back direction, avoiding the cancellation of cooperation due to the user leaning or other external forces, and preventing the lumbar pillow 1 from moving backward when the user sits down, thereby ensuring the user experience.

[0053] In a specific example, see the attached Figure 4 As shown, a third positioning hole 22 is provided on the inner wall of the outer frame 2, and a buckle 313 is provided on the lower wall surface of the base 31. The buckle 313 is engaged with the third positioning hole 22 to achieve relative fixation of the base 31 and the outer frame 2, and can prevent the base 31 from moving with the lumbar pillow 1 when the user pushes the lumbar pillow 1.

[0054] Preferably, the claw 32 is a POM (Polyoxymethylene) part, which is a thermoplastic engineering plastic with very high tensile strength, bending strength and compressive strength, and has good wear resistance. Because the claw 32 needs to rotate to a certain extent while moving back and forth to disengage from one tooth groove and cooperate with another tooth groove, the good wear resistance can ensure the reliability and service life of the claw 32, and avoid the loosening of the tooth 321 and the tooth groove due to the wear of the claw 32, thereby ensuring the cooperation between the claw 32 and the tooth groove, and avoiding relative movement between the lumbar pillow 1 and the outer frame 2 when the user does not push the lumbar pillow 1.

[0055] In a further embodiment of the present invention, refer to the attached Figure 13 As shown, in the top-down direction (such as Figure 13 As shown), the front wall of the latch 321 is tilted backward, and the rear wall of the latch 321 is tilted backward or along the up-down direction (as shown). Figure 13 The rear wall of the latch 321 is tilted backward or extends in the up-and-down direction, which can improve the reliability of the cooperation between the latch 321 and the tooth groove, and avoid the situation that the lumbar pillow 1 moves backward due to the loose cooperation between the latch 321 and the tooth groove when the user sits down, thereby ensuring the safety of the seat and the user's experience.

[0056] It should be noted that when the rear wall surface of the latch tooth 321 extends in the up-down direction, the latch tooth 321 can be prevented from interfering with the inner wall surface of the base 31 which is not provided with a tooth groove, thereby avoiding affecting the cooperation between the latch tooth 321 and the tooth groove; when the rear wall surface of the latch tooth 321 is tilted backward in the top-down direction, the reliability of the cooperation between the latch tooth 321 and the tooth groove can be improved, further avoiding the situation where the lumbar pillow 1 moves backward due to the loosening of the cooperation between the latch tooth 321 and the tooth groove when the user sits down, thereby ensuring the safety of the seat and the user's experience.

[0057] In a further embodiment of the present invention, referring to the attached Figure 8 , Attachment Figure 10 and attached Figure 13As shown, the adjustment structure 3 also includes an elastic member 33. The elastic member 33 is provided on the lumbar pillow 1 and abuts against the claw 32. It is used to drive the latch 321 to engage with the tooth groove. The elastic member 33 can continuously provide driving force to the claw 32 to ensure the engagement of the latch 321 with the tooth groove, preventing the latch 321 from loosening and causing the lumbar pillow 1 to move backward. This ensures the safety of the seat and the user's experience. In addition, when the latch 321 is disengaged from the tooth groove, the elastic member 33 can provide elastic force to quickly drive the claw 32 to rotate, so that the latch 321 engages with the tooth groove as soon as possible.

[0058] In a specific example, see the attached Figure 10 and attached Figure 13 As shown, the elastic member 33 includes a first section 331, a second section 332 and a positioning section 333, and the first section 331, the second section 332 and the positioning section 333 are arranged and connected in sequence from top to bottom. In the top-down direction, the first section 331 is inclined backward, and the second section 332 and the positioning section 333 are both inclined forward, and the angle between the positioning section 333 and the horizontal direction is greater than the angle between the second section 332 and the horizontal direction. The positioning section 333 extends into the fifth positioning hole 349 of the slider 34, and the upper surface of the first section 331 is abutted against the lower surface of the claw 32 to drive the claw 32 to rotate toward the tooth groove, so that the tooth 321 cooperates with the tooth groove.

[0059] Preferably, the elastic part 33 is a bent part of spring steel. Spring steel has excellent elasticity and deformation resistance, ensuring that the elastic part 33 can quickly return to its original shape after being subjected to pressure or deformation, so that when the tooth 321 is disengaged from the tooth groove, the elastic part 33 can quickly provide elastic force to drive the claw 32 to rotate, so that the tooth 321 is engaged with the tooth groove.

[0060] In a further embodiment of the present invention, refer to the attached Figure 12 As shown, the adjustment structure 3 also includes a slider 34, which is arranged on the lumbar pillow 1. The slider 34 has a cavity 340 and an opening 343. The opening 343 is arranged on the inner bottom wall of the cavity 340. The claw 32 is arranged in the cavity 340 and can move back and forth with the slider 34, and the tooth 321 is suitable for extending from the opening 343 to cooperate with the tooth groove. The setting of the slider 34 can protect and limit the claw 32, avoid the influence of external force or the presence of foreign matter on the cooperation between the tooth 321 and the tooth groove, and ensure the cooperation between the claw 32 and the tooth groove of the base 31, which is beneficial to extend the service life of the adjustment structure 3 and improve the user experience of the lumbar support structure 100.

[0061] In a specific example, see the attached Figure 2As shown, a fourth positioning hole 12 is provided on the lower side wall of the lumbar pillow 1, and a positioning member 348 is provided on the upper side of the slider 34. The positioning member 348 is passed through the fourth positioning hole 12 to achieve relative fixation of the slider 34 and the lumbar pillow 1, and can ensure that the lumbar pillow 1 drives the slider 34 to move together when the user pushes the lumbar pillow 1.

[0062] In a further embodiment of the present invention, referring to the attached Figure 12 As shown, a first positioning hole 346 and a second positioning hole 347 are provided on the outer wall of the slider 34, the second positioning hole 347 is located at the rear side of the first positioning hole 346, and the second positioning hole 347 has a first hole section 3471 extending in the up and down directions, and a first positioning column 322 and a second positioning column 323 are provided on the claw 32, the first positioning column 322 is passed through the first positioning hole 346, and the second positioning column 323 is passed through the second positioning hole 347 and is movable in the first hole section 3471. Through the cooperation between the first positioning column 322 and the first positioning hole 346, and the cooperation between the second positioning column 323 and the second positioning hole 347, the relative position between the claw 32 and the slider 34 can be guaranteed, so that the lumbar pillow 1 can drive the slider 34 to move in the front and back directions, and the slider 34 can drive the claw 32 to move together, thereby ensuring the effectiveness of front and back adjustment by directly pushing the lumbar pillow 1.

[0063] It can be understood that when the user pushes the lumbar pillow 1 forward from the back side of the lumbar support structure 100, because the front wall surface of the latch tooth 321 is tilted backward in the top-down direction, the tooth groove and the latch tooth 321 have the same shape, so the latch tooth 321 needs to move forward and upward along the shape of the front wall surface of the tooth groove. At this time, the first positioning column 322 needs to rotate in the first positioning hole 346, and the second positioning column 323 moves upward in the first hole section 3471, so that the latch tooth 321 is disengaged from the first tooth groove where it is currently located. When the latch tooth 321 is located above the second tooth groove on the front side of the first tooth groove, the elastic member 33 drives the claw 32 to move, so that the first positioning column 322 is reset in the first positioning hole 346, and the second positioning column 323 moves back to the lower end of the first hole section 3471, so that the latch tooth 321 is engaged with the second tooth groove.

[0064] In a further embodiment of the present invention, Figure 11 and attached Figure 12 As shown, the first positioning hole 346 extends in the front-to-back direction, and the second positioning hole 347 further includes a second hole section 3472. The second hole section 3472 is connected to the upper end of the first hole section 3471 and extends backward. A slide groove 311 is provided on the base 31, and the slider 34 is movably provided in the slide groove 311 in the front-to-back direction. The slide groove 311 is movably provided in the left-right direction (such as Figure 11At least one of the two opposite side walls (as shown) has a guide groove 312 extending in the front-to-back direction, and a portion of the guide groove 312 is arranged opposite to the first positioning hole 346. The first positioning column 322 is simultaneously passed through the first positioning hole 346 and the guide groove 312. When the latch tooth 321 is located on the upper side of the tooth groove at the front end, the first positioning column 322 is suitable for abutting against the rear side wall of the first positioning hole 346, and the second positioning column 323 is suitable for abutting against the rear side wall of the second hole section 3472. When the latch tooth 321 is located on the upper side of the tooth groove at the rear end, the first positioning column 322 is suitable for abutting against the rear side wall of the guide groove 312 and is spaced apart from the rear side wall of the first positioning hole 346.

[0065] It can be understood that when the lumbar support structure 100 is in the initial position, the latch tooth 321 cooperates with the tooth groove at the rear end, the first positioning post 322 abuts against the front side wall of the first positioning hole 346 and the rear side wall of the guide groove 312, and the second positioning post 323 is located at the lower end of the first hole section 3471; when the user pushes the lumbar pillow 1 forward from the back side of the lumbar support structure 100, the latch tooth 321 needs to move forward and upward along the shape of the front wall of the tooth groove. At this time, the first positioning post 322 needs to rotate in the first positioning hole 346, and the second positioning post 323 needs to rotate in the second positioning hole 346. The positioning column 323 moves upward in the first hole section 3471 so that the latch tooth 321 disengages from the first tooth groove where it is currently located. When the latch tooth 321 is located above the second tooth groove on the front side of the first tooth groove, the elastic member 33 drives the claw 32 to move, so that the first positioning column 322 is reset in the first positioning hole 346, and the second positioning column 323 moves back to the lower end of the first hole section 3471 so that the latch tooth 321 cooperates with the second tooth groove, thereby realizing the forward adjustment and locking of the lumbar pillow 1, and realizing the gear adjustment function of the lumbar support structure 100.

[0066] When the latch tooth 321 moves to the frontmost tooth groove, the user continues to push the lumbar pillow 1 forward, and the latch tooth 321 moves forward and upward along the shape of the front wall of the frontmost tooth groove again, so that the latch tooth 321 disengages from the frontmost tooth groove. At this time, the first positioning post 322 is abutted against the front side wall of the first positioning groove, and the second positioning post 323 is located at the upper end of the first hole section 3471. The latch tooth 321 is abutted against the inner bottom wall of the base 31 without a tooth groove, so that the claw 32 cannot continue to move forward, but the slider 34 can still move forward under the push of the lumbar pillow 1 until the first positioning post 322 is abutted against the rear side wall of the first positioning hole 346, and the second positioning post 323 moves to the rear end of the second hole section 3472, and the user can no longer push the lumbar support.

[0067] When the second positioning post 323 is located at the rear end of the second hole section 3472, the second positioning post 323 cannot move downward directly. At this time, the claw 32 cannot rotate, and the claw 32 is always separated from the tooth groove. The lumbar pillow 1 and the outer frame 2 are in a relatively free sliding state; when the lumbar pillow 1 is pushed hard so that the tooth 321 is located on the upper side of the tooth groove at the rear end, the rear side wall of the guide groove 312 abuts against the first positioning post 322, so that the first positioning post 322 moves forward and is separated from the rear side wall of the first positioning hole 346. At this time, the second positioning post 323 can move to the first hole section 3471, and under the action of the elastic member 33, it moves from the upper end to the lower end of the first hole section 3471, and the tooth 321 cooperates with the tooth groove at the rear end to return to the initial position of the lumbar support structure 100.

[0068] In a further embodiment of the present invention, slider 34 is constructed of nylon. Nylon is high in strength and exhibits excellent elasticity, resilience, heat resistance, corrosion resistance, electrical insulation, fatigue resistance, and self-lubrication. It is also easy to manufacture, which reduces the production and processing costs of slider 34 and facilitates the lightweight design of lumbar support structure 100. Furthermore, the high strength of nylon allows slider 34 to withstand significant stress and pressure, preventing deformation caused by the user leaning on or squeezing the slider, thereby improving the reliability and stability of slider 34.

[0069] Further, refer to the attached Figure 12 As shown, the slider 34 includes a main body 341 and a fixing plate 342. The main body 341 has a mounting groove 344. The opening 343 is provided on the inner bottom wall of the mounting groove 344. The upper side and one side along the left and right directions of the mounting groove 344 are open. The fixing plate 342 covers the open opening 343 in the left and right directions of the mounting groove 344. The main body 341 and the fixing plate 342 jointly define a cavity 340. The main body 341 and the fixing plate 342 are connected by a fastener 345.

[0070] It is understandable that because the slider 34 is made of nylon, which is strong and hard, if the slider 34 were a single piece, it would greatly increase the difficulty of installing the claw 32, making it difficult to insert the first positioning column 322 into the first positioning hole 346 and the second positioning column 323 into the second positioning hole 347. However, by separating the slider 34 into the body 341 and the fixing plate 342, the elastic member 33 and the claw 32 can be first assembled into the installation slot 344, and then the fixing plate 342 is fixed to the left and right openings 343 of the installation slot 344. The body 341 and the fixing plate 342 are connected via fasteners 345. This greatly reduces the difficulty of assembling the adjustment structure 3 and facilitates installation of the lumbar support structure 100. Preferably, the fasteners 345 are ST4 screws.

[0071] In a specific example, see the attached Figure 12As shown, a first positioning hole 346 and a second positioning hole 347 are provided on the fixing plate 342, and a first positioning hole 346 and a second positioning hole 347 are also provided on the side wall of the main body 341 opposite to the fixing plate 342 in the left and right directions. A first positioning column 322 and a second positioning column 323 are provided on both side walls of the claw 32 in the left and right directions. The two first positioning columns 322 are respectively inserted into the first positioning holes 346 on the fixing plate 342 and the main body 341, and the two second positioning columns 323 are respectively inserted into the second positioning holes 347 on the fixing plate 342 and the main body 341.

[0072] In some embodiments of the present invention, Figure 1 and attached Figure 5 As shown, the outer peripheral wall of the lumbar pillow 1 is provided with a plurality of grooves 11, which are arranged at intervals along the circumferential direction of the lumbar pillow 1. The grooves 11 penetrate the lumbar pillow 1 in the front-to-back direction. The inner peripheral wall of the outer frame 2 is provided with a plurality of protrusions 21, which correspond one-to-one with the plurality of grooves 11. The cooperation between the protrusions 21 and the grooves 11 can play a limiting and guiding role, ensuring that the lumbar pillow 1 and the outer frame 2 can move relative to each other in the front-to-back direction, and can only move relative to each other in the front-to-back direction, ensuring that the position of the lumbar pillow 1 relative to the outer frame 2 in the front-to-back direction is adjustable, thereby improving the reliability and stability of the lumbar support structure 100. For example, the number of grooves 11 provided on the outer peripheral wall of the lumbar pillow 1 can be two, four, six, eight, or ten, the plurality of grooves 11 are arranged at intervals along the circumferential direction of the lumbar pillow 1, and the number of protrusions 21 provided on the inner peripheral wall of the outer frame 2 can be two, four, six, eight, or ten, corresponding one-to-one with the plurality of grooves 11.

[0073] The present invention also provides a chair having the lumbar support structure 100 of the above embodiment.

[0074] According to the seat of the embodiment of the present invention, the above-mentioned lumbar support structure 100 is provided, and the lumbar pillow 1 is arranged around the outer frame 2. The position of the lumbar pillow 1 relative to the outer frame 2 is adjustable along the front-to-back direction. After the overall position adjustment of the lumbar support structure 100 is completed, the relative position of the lumbar pillow 1 and the outer frame 2 in the front-to-back direction can be slightly adjusted according to the actual usage needs of the user, so as to meet the support requirements of different users for the lumbar support structure 100, better protect the user's waist, improve the user experience, and improve the user's satisfaction.

[0075] The lumbar support structure 100 and other structures and operations of the seat according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0077] 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 purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lumbar support structure, characterized in that: include: Lumbar pillow (1); An outer frame (2), the outer frame (2) is arranged around the lumbar pillow (1), and the position of the lumbar pillow (1) is adjustable along the front-back direction relative to the outer frame (2).

2. The lumbar support structure according to claim 1, characterized in that: Also includes: An adjustment structure (3) is provided between the lumbar pillow (1) and the outer frame (2) and is connected to the lumbar pillow (1) and the outer frame (2), and is used for adjusting the relative position of the lumbar pillow (1) and the outer frame (2) along the front-back direction.

3. The lumbar support structure according to claim 2, characterized in that: The regulating structure (3) comprises: A base (31), the base (31) being connected to the outer frame (2), and the base (31) having a plurality of tooth grooves spaced apart in a front-to-back direction; A clamping claw (32), the clamping claw (32) is arranged on the lumbar pillow (1), and the clamping claw (32) has a clamping tooth (321), and the clamping tooth (321) can be selectively matched with different tooth grooves.

4. The lumbar support structure according to claim 3, characterized in that: In the top-down direction, the front wall of the latching tooth (321) is tilted backward, the rear wall of the latching tooth (321) is tilted backward or extends in the up-down direction, and the tooth groove has the same shape as the latching tooth (321).

5. The lumbar support structure according to claim 4, characterized in that: The regulating structure (3) further comprises: An elastic member (33) is provided on the lumbar pillow (1) and abuts against the clamping claw (32), and is used to drive the clamping tooth (321) to cooperate with the tooth groove.

6. The lumbar support structure according to claim 3, characterized in that: The regulating structure (3) further comprises: A slider (34), the slider (34) is arranged on the lumbar pillow (1), the slider (34) has a cavity (340) and an opening (343), the opening (343) is arranged on the inner bottom wall of the cavity (340), the claw (32) is arranged in the cavity (340) and can move back and forth with the slider (34), and the latch tooth (321) is suitable for extending from the opening (343) to cooperate with the tooth groove.

7. The lumbar support structure according to claim 6, characterized in that: A first positioning hole (346) and a second positioning hole (347) are provided on the outer wall of the slider (34), wherein the second positioning hole (347) is located at the rear side of the first positioning hole (346), and the second positioning hole (347) has a first hole section (3471) extending in the up-down direction. The claw (32) is provided with a first positioning column (322) and a second positioning column (323), the first positioning column (322) is arranged in the first positioning hole (346), and the second positioning column (323) is arranged in the second positioning hole (347) and is movable in the first hole section (3471).

8. The lumbar support structure according to claim 7, characterized in that: The first positioning hole (346) extends in the front-to-back direction, and the second positioning hole (347) further includes a second hole section (3472). The second hole section (3472) is connected to the upper end of the first hole section (3471) and extends backward. The base (31) is provided with a slide groove (311), and the slider (34) is movably arranged in the slide groove (311) along the front-back direction. At least one of the two side walls of the slide groove (311) opposite to each other in the left-right direction has a guide groove (312) extending along the front-back direction. A portion of the guide groove (312) is arranged opposite to the first positioning hole (346). The first positioning column (322) is simultaneously provided in the first positioning hole (346) and the guide groove (312). When the latch (321) is located on the upper side of the tooth groove at the front end, the first positioning column (322) is suitable for abutting against the rear side wall of the first positioning hole (346), and the second positioning column (323) is suitable for abutting against the rear side wall of the second hole section (3472). When the latch (321) is located on the upper side of the tooth groove at the rear end, the first positioning column (322) is suitable for abutting against the rear side wall of the guide groove (312) and is separated from the rear side wall of the first positioning hole (346).

9. The lumbar support structure according to claim 6, characterized in that: The slider (34) is a nylon piece and comprises: A body (341) and a fixing plate (342), wherein the body (341) has a mounting groove (344), the opening (343) is provided on the inner bottom wall of the mounting groove (344), the upper side and one side along the left and right directions of the mounting groove (344) are open, the fixing plate (342) is covered at the open opening (343) in the left and right directions of the mounting groove (344), the body (341) and the fixing plate (342) jointly define the cavity (340), and the body (341) and the fixing plate (342) are connected by a fastener (345).

10. The lumbar support structure according to claim 1, characterized in that: The outer peripheral wall of the lumbar pillow (1) is provided with a plurality of grooves (11), and the plurality of grooves (11) are arranged at intervals along the circumferential direction of the lumbar pillow (1). The grooves (11) penetrate the lumbar pillow (1) in the front-to-back direction. The inner peripheral wall of the outer frame (2) is provided with a plurality of protrusions (21), and the plurality of protrusions (21) correspond one-to-one to the plurality of grooves (11).

11. A seat, characterized in that: The invention comprises a lumbar support structure (100) according to any one of claims 1 to 10.

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