Waist supporting device and seat

Abstract

The waist supporting device comprises a back frame and a waist supporting assembly, a supporting frame is arranged in the middle of the back frame, sliding grooves are formed in the left side and the right side of the supporting frame, a plurality of gear grooves are formed in the side walls of the sliding grooves, supporting strips are arranged on the bottom walls of the sliding grooves, and a plurality of first clamping parts are arranged on the front sides of the supporting strips at intervals; the waist supporting assembly comprises a waist rest, a connecting frame and a gear elastic piece, the waist rest is arranged on the front side of the connecting frame, connecting feet are arranged on the left side and the right side of the connecting frame, clamping blocks are arranged on the connecting feet, mounting grooves are formed in the sides, facing gear grooves, of the clamping blocks, second clamping parts are arranged on the rear sides of the clamping blocks, and the gear elastic piece is arranged in the mounting grooves; the connecting pin is arranged in the sliding groove and can slide up and down, the end of the gear elastic piece can be clamped into the gear groove, and the first clamping part abuts against the second clamping part. According to the waist supporting device, flexible adjustment and stable supporting of the position of the waist rest are achieved, and the comfort of a seat and the user experience are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sitting device technical field, especially a waist support device and a seat. BACKGROUND

[0002] The structure of the seat comprises a cushion, a back support, an armrest and a waist rest, the waist rest can provide support for the human waist and can better improve the comfort, but in the related art, the waist rest of part of the seat is fixed on the back support and cannot be adjusted according to the use demand of the user, so it cannot adapt to users with different demands, while the waist rest of another part of the seat can be adjusted up and down, but when the force of the user's waist acts on the waist rest, the waist rest of the seat is prone to displacement, so that the support position changes, affecting the user's use experience. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art, for this purpose, the utility model provides a waist support device, which realizes flexible adjustment and stable support of the waist rest position, greatly improving the comfort and user experience of the seat.

[0004] In a second aspect, the utility model further provides a seat applying the above-mentioned waist support device.

[0005] According to the waist support device provided by the first aspect of the utility model, the following is provided.

[0006] The back frame is provided with a support frame in the middle, left and right sides of the support frame are provided with sliding grooves extending from top to bottom and opening forward, the side wall of the sliding groove is provided with a plurality of gear grooves arranged at intervals from top to bottom, the bottom wall is provided with a support bar extending from top to bottom, the front side of the support bar is provided with a plurality of first clamping parts, and the plurality of first clamping parts are arranged at intervals from top to bottom.

[0007] The waist support assembly comprises a waist rest, a connecting frame and a gear elastic sheet, the waist rest is arranged on the front side of the connecting frame, left and right sides of the connecting frame are provided with connecting feet, the connecting feet are provided with clamping blocks, one side of the clamping block facing the gear groove is provided with a mounting groove, the rear side of the clamping block is provided with a second clamping part, and the gear elastic sheet is arranged in the mounting groove.

[0008] The connecting feet are arranged in the sliding groove and can slide up and down, the end of the gear elastic sheet can be clamped into the gear groove, and the first clamping part and the second clamping part abut.

[0009] According to the waist support device provided by the first aspect of the utility model, the sliding groove on the back frame provides a track for the connecting frame to slide up and down, so that the waist rest can be adjusted in height according to the user's needs, greatly improving the adaptability and comfort of the seat. At the same time, the gear groove and the gear spring piece are designed to cooperate to ensure that the waist rest can be stably kept at a certain position after adjustment, avoiding displacement of the waist rest caused by the user's waist force, thereby ensuring the stability of the support position and improving the user's experience. In addition, when the user's waist force acts on the waist rest, it will push the connecting frame and the connecting foot backward, so that the first clamping part and the second clamping part are pressed tightly, thereby preventing the waist rest from moving, so that the waist rest can more reliably support the user's waist when under stress.

[0010] According to the waist support device provided by the first aspect of the utility model, the first clamping part is a first clamping block, and the second clamping part is a second clamping block, and the outer wall of the first clamping block abuts against the outer wall of the second clamping block.

[0011] According to the waist support device provided by the first aspect of the utility model, the bottom wall of the sliding groove is provided with at least two support strips, and the two support strips are arranged at intervals, and the front side of each support strip is provided with a plurality of first clamping parts.

[0012] According to the waist support device provided by the first aspect of the utility model, the side of the clamping block facing the support strip is provided with a plurality of second clamping parts, and the plurality of second clamping parts are arranged at intervals from top to bottom.

[0013] According to the waist support device provided by the first aspect of the utility model, the support frame is connected with a pressing strip, and the pressing strip is configured to limit the clamping block in the sliding groove.

[0014] According to the waist support device provided by the first aspect of the utility model, the upper and lower ends of the connecting foot are each provided with a balance support block, and the rear side of the balance support block abuts against the front side of the support strip.

[0015] According to the waist support device provided by the first aspect of the utility model, the balance support block and the connecting foot are an integral molding structure.

[0016] According to the waist support device provided by the first aspect of the utility model, the connecting foot and the connecting frame are an integral molding structure.

[0017] According to the waist support device provided by the first aspect of the utility model, the clamping block and the connecting foot are an integral molding structure.

[0018] The seat has all the beneficial effects of the seat according to the first aspect of the present application.

[0019] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0021] Figure 1 The overall schematic view of the waist support device provided for the embodiment of the present application is shown in the figure;

[0022] Figure 2 The exploded schematic view of the waist support device provided for the embodiment of the present application is shown in the figure;

[0023] Figure 3 The structure schematic view of the back frame of the waist support device provided for the embodiment of the present application is shown in the figure;

[0024] Figure 4 The structure schematic view of the connecting frame provided for the embodiment of the present application is shown in the figure; Figure 3 The enlarged schematic view of A in the figure;

[0025] Figure 5 The structure schematic view of the connecting frame provided for the embodiment of the present application is shown in the figure;

[0026] Figure 6 The structure schematic view of the connecting frame provided for the embodiment of the present application is shown in the figure.

[0027] The reference signs are as follows:

[0028] The back frame 100; the support frame 110; the sliding groove 111; the gear groove 112; the support strip 113; the first clamping part 114; the pressing strip 120;

[0029] The waist support assembly 200; the waist rest 210; the connecting frame 220; the connecting leg 221; the clamping block 222; the mounting groove 223; the second clamping part 224; the balance support block 225; the gear elastic sheet 230. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0031] In the description of the utility model, it needs to be understood that, if the direction description, such as upper, lower, left, right and other indications of direction or positional relationship is based on the direction or positional relationship shown in the drawing, it is only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the indicated device or element must have a particular direction, a particular direction configuration and operation, therefore it can not be understood as the limitation of the utility model.

[0032] In the description of the utility model, if the first, second is described for the purpose of distinguishing technical features, it can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0033] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood broadly, and the skilled person in the art can determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0034] The embodiment of the utility model provides a waist support device, applied to a seat, the specific structure and function of the waist support device provided by the embodiment of the utility model will be further explained below in combination with the text and drawings.

[0035] Referring to Figures 1 to 6 According to the waist support device provided by the first aspect embodiment of the utility model, the waist support device comprises a back frame 100 and a waist support assembly 200, the back frame 100 is used as the support base of the whole device, and a support frame 110 is arranged in the middle part, the left and right sides of the support frame 110 are provided with sliding grooves 111 extending from top to bottom and opening forward, the side wall of the sliding groove 111 is provided with a plurality of gear grooves 112 arranged at intervals from top to bottom, the plurality of gear grooves 112 are used for cooperating with gear elastic sheets 230 to realize the adjustment and fixation of the position of the waist rest 210. The bottom wall of the sliding groove 111 is provided with a support strip 113 extending from top to bottom, the front side of the support strip 113 is provided with a plurality of first clamping parts 114 arranged at intervals from top to bottom, the first clamping parts 114 are used for abutting against the second clamping parts 224 in the waist support assembly 200 to enhance the stability of the waist rest 210. The waist support assembly 200 comprises a waist rest 210, a connecting frame 220 and the gear elastic sheets 230. The waist rest 210 is arranged on the front side of the connecting frame 220 and directly contacts with the waist of the user to provide a supporting effect. The left and right sides of the connecting frame 220 are provided with connecting feet 221, the connecting feet 221 are provided with clamping blocks 222, one side of the clamping block 222 towards the gear groove 112 is provided with a mounting groove 223 for mounting the gear elastic sheet 230. The rear side of the clamping block 222 is provided with the second clamping part 224 for abutting against the first clamping part 114. The gear elastic sheet 230 is arranged in the mounting groove 223, and the end part thereof can be clamped into the gear groove 112 to realize the fixation of the position of the waist rest 210.

[0036] In use, the user can push the lumbar support 210 according to his own needs, so that the connecting frame 220 drives the connecting feet 221 to slide up and down in the sliding groove 111. When the end of the gear elastic sheet 230 is clamped into different gear grooves 112, the position of the lumbar support 210 is adjusted. When the force of the user's waist acts on the lumbar support 210, the connecting frame 220 and the connecting feet 221 are pushed backward, so that the first clamping part 114 and the second clamping part 224 are pressed tightly. This pressing action not only enhances the stability of the lumbar support 210, but also prevents the lumbar support 210 from shifting when it is stressed, thereby ensuring the stability of the support position.

[0037] According to the lumbar support device provided by the first aspect of the present application, the sliding groove 111 on the back frame 100 provides a track for the connecting frame 220 to slide up and down, so that the lumbar support 210 can be adjusted in height according to the user's needs, greatly improving the adaptability and comfort of the seat. At the same time, the design of the gear groove 112 and the gear elastic sheet 230 ensures that the lumbar support 210 can be stably maintained at a certain position after adjustment, avoiding displacement of the lumbar support 210 caused by the user's waist force, thereby ensuring the stability of the support position and improving the user's experience. In addition, when the force of the user's waist acts on the lumbar support 210, the connecting frame 220 and the connecting feet 221 are pushed backward, so that the first clamping part 114 and the second clamping part 224 are pressed tightly, thereby preventing the lumbar support 210 from shifting, so that the lumbar support 210 can more reliably support the user's waist when stressed.

[0038] Referring to Figures 3 to 6 , according to the lumbar support device provided by the first aspect of the present application, the first clamping part 114 is a first clamping block, and the second clamping part 224 is a second clamping block. When the lumbar support 210 is stressed, the outer wall of the first clamping block abuts against the outer wall of the second clamping block. In actual application, when the force of the user's waist acts on the lumbar support 210, the lumbar support 210 moves backward, thereby driving the connecting frame 220 and the connecting feet 221 to slide in the sliding groove 111. At this time, the outer wall of the first clamping block abuts tightly on the outer wall of the second clamping block, forming a stable support structure. This not only enhances the stability of the lumbar support 210, but also effectively prevents the support position from changing due to displacement when the lumbar support 210 is stressed, thereby further improving the user's experience.

[0039] It can be understood that the first clamping part 114 can also be a groove, and the second clamping part 224 is a protruding rib matched with the groove. The matching of the groove and the protruding rib can also enhance the stability of the lumbar support 210.

[0040] Referring to Figure 4According to the waist support device provided by the first aspect of the utility model, the bottom wall of the sliding groove 111 is provided with at least two support strips 113, and the two support strips 113 are arranged at intervals, which not only enhances the structural strength of the bottom wall of the sliding groove 111, but also provides a more stable support basis for the waist support assembly 200. The front side of each support strip 113 is provided with a plurality of first clamping portions 114, and the plurality of first clamping portions 114 correspond to the second clamping portions 224 in the waist support assembly 200. When the waist rest 210 is stressed, the connecting frame 220 will drive the connecting feet 221 to slide in the sliding groove 111, at this time, the first clamping portions 114 on each support strip 113 will be in close abutment with the corresponding second clamping portions 224, forming a stable structure of multi-point support. This not only improves the stability of the waist rest 210, but also effectively disperses the pressure of the user's waist on the waist rest 210, so that the waist rest 210 can more evenly support the user's waist.

[0041] With reference to Figure 6 According to the waist support device provided by the first aspect of the utility model, the side of the clamping block 222 facing the support strip 113 is provided with a plurality of second clamping portions 224, and the plurality of second clamping portions 224 are arranged at intervals from top to bottom, so that when the waist support assembly 200 slides up and down in the sliding groove 111, no matter where the waist rest 210 is adjusted to, there will be a corresponding second clamping portion 224 in abutment with the first clamping portion 114 on the support strip 113. The arrangement of the plurality of second clamping portions 224 not only increases the stability of the waist rest 210, but also enables the waist rest 210 to obtain uniform support force at different height positions.

[0042] When the user's waist applies pressure to the waist rest 210, the waist rest 210 will drive the connecting frame 220 and the connecting feet 221 to move backward, at this time, the plurality of second clamping portions 224 will be in close abutment with the corresponding first clamping portions 114 at the same time, forming a stable structure of multi-point support, effectively preventing the waist rest 210 from being displaced when stressed, ensuring the stability of the support position, and thus improving the user's experience.

[0043] With reference to Figure 1 and Figure 2 According to the waist support device provided by the first aspect of the utility model, the support frame 110 is connected with a pressing strip 120, the pressing strip 120 is installed at the opening of the sliding groove 111, that is, the front side of the back frame 100, and the pressing strip 120 is fixed on the back frame 100 through fasteners, so as to be closely attached to the opening edge of the sliding groove 111, thereby forming a closed space to firmly limit the clamping block 222. When the waist support assembly 200 slides up and down in the sliding groove 111, the existence of the pressing strip 120 effectively prevents the clamping block 222 from being pulled out of the sliding groove 111, ensuring the stability of the waist support assembly 200.

[0044] With reference to Figure 5 And Figure 6 According to the waist support device provided by the first aspect of the present application, the upper and lower ends of the connecting leg 221 are provided with balance support blocks 225, and the rear side of the balance support block 225 abuts against the front side of the support bar 113. The balance support block 225 increases the contact area between the connecting leg 221 and the support bar 113, thereby enhancing the stability of the waist support assembly 200 in the sliding groove 111. No matter where the waist rest 210 is adjusted to, the balance support block 225 can tightly fit the support bar 113, ensuring that the waist support assembly 200 does not sway or tilt left and right.

[0045] Secondly, the balance support block 225 also plays a role in dispersing pressure. When the user's waist applies pressure to the waist rest 210, the pressure is transmitted to the balance support block 225 through the connecting leg 221, and then uniformly dispersed to the support bar 113 by the balance support block 225. In this way, not only is the supporting force of the waist rest 210 enhanced, but also the service life of the waist support device is effectively prolonged.

[0046] In addition, the design of the balance support block 225 also takes into account the convenience of use for the user. When adjusting the position of the waist rest 210, the balance support block 225 can slide up and down in the sliding groove 111 along with the connecting leg 221 without the need for additional operations or adjustments. This makes the adjustment process of the waist support device smoother and more convenient.

[0047] With reference to Figure 5 And Figure 6 According to the waist support device provided by the first aspect of the present application, the balance support block 225 and the connecting leg 221 are integrally formed, which not only simplifies the manufacturing process of the waist support assembly 200, but also greatly improves its structural strength and stability. Since the balance support block 225 and the connecting leg 221 are integrally formed, there is no connection gap or weak point between them, so they can more effectively resist external pressure and impact, ensuring that the waist support assembly 200 remains stable during long-term use.

[0048] In addition, the integrally formed design also makes the force transmission between the balance support block 225 and the connecting leg 221 more direct and efficient. When the user's waist applies pressure to the waist rest 210, this pressure can be quickly transmitted to the balance support block 225 through the connecting leg 221, and then uniformly dispersed to the support bar 113 by the balance support block 225. This not only enhances the supporting force of the waist rest 210, but also improves the overall response speed and sensitivity of the seat.

[0049] In addition, the integrated design also facilitates the maintenance and replacement of the waist support device. Since the balancing support block 225 and the connecting leg 221 are integrally formed, when replacement or maintenance is required, the integral disassembly and installation can be more conveniently performed without worrying about problems caused by connecting gaps or weaknesses.

[0050] With reference to Figure 5 and Figure 6 , according to the waist support device provided by the first aspect of the present application, the connecting leg 221 and the connecting frame 220 are integrally formed, which significantly improves the structural strength and stability between the connecting leg 221 and the connecting frame 220. Since the connecting leg 221 and the connecting frame 220 are integrally formed, there is no connecting gap or potential weakness, so the pressure exerted by the user's waist on the waist rest 210 can be more effectively borne and dispersed, ensuring that the waist support device remains stable and reliable during long-term use.

[0051] With reference to Figure 5 and Figure 6 , according to the waist support device provided by the first aspect of the present application, the clamping block 222 and the connecting leg 221 are integrally formed, which is conducive to improving the stability of the structure between the clamping block 222 and the connecting leg 221.

[0052] According to the seat provided by the second aspect of the present application, the seat has all the beneficial effects of the first aspect of the present application.

[0053] Of course, the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A lumbar support device, characterized by, The utility model relates to a back frame, middle part is equipped with support frame, support frame's left and right sides are equipped with from top to bottom extension and open to the front slide groove, the lateral wall of slide groove is equipped with from top to bottom interval arrangement a plurality of gear slot, bottom wall is equipped with from top to bottom extension support strip, support strip's front side is equipped with a plurality of first clamping portion, a plurality of first clamping portion from top to bottom interval arrangement. The waist support assembly includes a waist rest, a connecting frame, and a gear spring. The waist rest is located on the front side of the connecting frame. The left and right sides of the connecting frame are provided with connecting feet. The connecting feet are provided with clamping blocks. The side of the clamping blocks facing the gear slots is provided with mounting grooves. The rear side of the clamping blocks is provided with second clamping portions. The gear spring is located in the mounting grooves. The connecting feet are located in the slide groove and can slide up and down. The end of the gear spring can be clamped into the gear slot. The first clamping portion and the second clamping portion are in contact. The first clamping portion is a first clamping block, and the second clamping portion is a second clamping block. The outer wall of the first clamping block is in contact with the outer wall of the second clamping block.

2. The lumbar support device of claim 1, wherein, The bottom wall of the slide groove is provided with at least two support strips. The two support strips are arranged at intervals. The front side of each support strip is provided with a plurality of first clamping portions.

3. The lumbar support device of claim 1, wherein, The side of the clamping block facing the support strip is provided with a plurality of second clamping portions. The plurality of second clamping portions are arranged from top to bottom at intervals.

4. The lumbar support device of claim 1 or 3, wherein, The support frame is connected with a pressing strip. The pressing strip is configured to limit the clamping block in the slide groove.

5. The lumbar support device of claim 1, wherein, The upper and lower ends of the connecting feet are provided with balance support blocks. The rear side of the balance support blocks is in contact with the front side of the support strip.

6. The lumbar support device of claim 1, wherein, The balance support block and the connecting foot are an integral structure.

7. The lumbar support device of claim 6, wherein, The connecting foot and the connecting frame are an integral structure.

8. The lumbar support device of claim 1, wherein, The clamping block and the connecting foot are an integral structure.

9. The lumbar support device of claim 1, wherein, The utility model relates to a back frame, middle part is equipped with support frame, support frame's left and right sides are equipped with from top to bottom extension and open to the front slide groove, the lateral wall of slide groove is equipped with from top to bottom interval arrangement a plurality of gear slot, bottom wall is equipped with from top to bottom extension support strip, support strip's front side is equipped with a plurality of first clamping portion, a plurality of first clamping portion from top to bottom interval arrangement.

10. A seat, characterized by ​

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