Lumbar support chair

Abstract

This invention provides a lumbar support chair. [Solution] The lumbar support chair includes a buttock support, a lumbar support, and a locking device. The buttock support is used to support at least a portion of the user's buttocks and at least a portion of their legs. The lumbar support is used to support at least a portion of the user's lumbar region. The buttock support and the lumbar support are detachably connected by a locking device. When the user sits on the buttock support, the lumbar support provides the necessary support to the user's lumbar spine, helping to maintain the natural curve of the spine and reducing the burden on the lumbar spine. Furthermore, because the lumbar support and the buttock support can be detached and separated from each other via the locking device, they can be manufactured independently during the production process, reducing the difficulty of production, significantly reducing the space occupied during transportation and storage, lowering transportation and storage costs, and making the product convenient to carry and transport.

Description

Technical Field

[0001] The present invention relates to the field of chairs, and particularly to lumbar support chairs.

Background Art

[0002] With the changes in people's lifestyles and work patterns, sitting for long hours has become common among modern people. However, poor sitting posture for long hours and lack of effective lumbar support often lead to disorders and injuries of the lumbar spine and lower back. To alleviate these problems, various lumbar support chairs have emerged in the market. These chairs provide support to the lumbar region and back through scientific design, improve sitting posture, and reduce the pressure on the lumbar spine.

[0003] However, many of the conventional lumbar support chairs are of the overall fixed type. When it comes to production, transportation, and daily use and carrying, the traditional fixed lumbar pad is difficult to produce and package due to its structure, resulting in increased production difficulty and transportation costs. Cross-reference to related literature

[0004] The present invention claims the priority of a patent application submitted to the China National Intellectual Property Administration on January 10, 2025, with an application number of 2025200645236 and an application title of "Lumbar Support Chair".

Summary of the Invention

Problems to be Solved by the Invention

[0007] As a further improvement, the lumbar support chair further includes a second locking device, wherein the buttock support and the lumbar support are detachably connected via the first and second locking devices.

[0008] As a further improvement, the first locking device includes a first locking member and a first locking engaging member, wherein the first locking member is provided on the hip support portion, and the first locking engaging member is provided on the lumbar support portion, and the hip support portion is locked and fixed to the lumbar support portion by the connection of the first locking member to the first locking engaging member. Alternatively, the first locking member is provided on the lumbar support portion, and the first locking engaging member is provided on the buttock support portion.

[0009] As a further improvement, the first locking member includes at least one first engagement buckle, and the first locking engagement member includes at least one first engagement groove, and the buttock support is locked and fixed to the lumbar support by the engagement of the first engagement buckle with the first engagement groove.

[0010] As a further improvement, at least one first insertion groove is recessed at one end of the lumbar support portion connected to the hip support portion, and the first engagement groove is provided in at least one first insertion groove, and at least one first insertion member is protruding at one end of the hip support portion connected to the lumbar support portion, and the first engagement buckle is provided in at least one first insertion member, and when the first insertion member is inserted into the first insertion groove, the first engagement buckle engages with the first engagement groove. [Effects of the Invention]

[0011] The beneficial effects of the present invention are as follows: The present invention provides a lumbar support chair. The lumbar support chair includes a buttock support, a lumbar support, and a locking device. The buttock support is used to support at least a portion of the user's buttocks and at least a portion of their legs. The lumbar support is used to support at least a portion of the user's lumbar region. The buttock support and the lumbar support are detachably connected by the locking device. When the user sits on the buttock support, the lumbar support can provide the necessary support to the user's lumbar spine, help maintain the natural curve of the spine, and reduce the burden on the lumbar spine. Furthermore, since the lumbar support and the buttock support can be detached and separated from each other by the locking device, they can be manufactured independently in the production process, reducing the difficulty of production, significantly reducing the space occupied during transportation and storage, lowering transportation and storage costs, and making the product convenient to carry and transport. [Brief explanation of the drawing]

[0012] To more clearly illustrate embodiments of the present invention or technical aspects of the prior art, the drawings necessary for describing the embodiments or prior art are briefly described below. Clearly, the drawings in the following description represent only a few embodiments of the present invention, and those skilled in the art can obtain other drawings based on the structures shown in these drawings without expending any creative effort.

[0013] [Figure 1]This is the overall configuration diagram of the present invention. [Figure 2] This is the overall configuration diagram of another perspective of the present invention. [Figure 3] This is the exploded view of the present invention. [Figure 4] This is the exploded view of another perspective of the present invention. [Figure 5] This is the cross-sectional view cut along the first insertion member of the present invention. [Figure 6] This is the enlarged view of the portion A in FIG. 5. [Figure 7] This is the cross-sectional view cut along the second insertion member of the present invention. [Figure 8] This is the enlarged view of the portion B in FIG. 7. [Figure 9] This is the exploded view of the rear view angle of the present invention. [Figure 10] This is another exploded view of the rear view angle of the present invention. [Figure 11] This is the enlarged view of the portion C in FIG. 10. [Figure 12] This is the enlarged view of the portion C in FIG. 10. [Figure 13] This is the front view of the present invention. [Figure 14] This is another exploded view of the present invention. [Figure 15] This is the configuration diagram of Embodiment 2 of the present invention. [Figure 16] This is the exploded view of Embodiment 2 of the present invention. [Figure 17] This is the configuration diagram of Embodiment 3 of the present invention. [Figure 18] This is the exploded view of Embodiment 3 of the present invention. [Figure 19] This is the configuration diagram of Embodiment 4 of the present invention. [Figure 20] This is the exploded view of Embodiment 4 of the present invention. [Figure 21] This is another exploded view of Embodiment 4 of the present invention. [Figure 22] This is the configuration diagram of Embodiment 5 of the present invention. [Figure 23] This is the exploded view of Embodiment 5 of the present invention.

Modes for Carrying Out the Invention

[0014] Hereinafter, the technical aspects of embodiments of the present invention will be clearly and completely described with reference to the drawings of the embodiments of the present invention. Clearly, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments that can be obtained by those skilled in the art without creative work based on the embodiments of the present invention are all within the scope of the protection of the present invention. [Examples]

[0015] Embodiment 1 As shown in Figures 1 to 14, the lumbar support chair includes a buttock support section 1, a lumbar support section 2, and a first locking device 3. The buttock support section 1 is used to support at least a portion of the user's buttocks and at least a portion of their legs. The lumbar support section 2 is used to support at least a portion of the user's lumbar region. The buttock support section 1 and the lumbar support section 2 are detachably connected by the first locking device 3. With this configuration, when the user sits on the buttock support section 1, the lumbar support section 2 can provide the necessary support to the user's lumbar spine, helping to maintain the natural curve of the spine and reducing the burden on the lumbar spine. Furthermore, since the lumbar support section 2 and the buttock support section 1 can be detached and separated from each other by the first locking device 3, they can be manufactured independently in the production process, reducing the difficulty of production, significantly reducing the space occupied during transportation and storage, lowering transportation and storage costs, and making the product convenient to carry and transport.

[0016] In some embodiments, the hip support 1 and the lumbar support 2 are detachably connected by buckles, rivets, screws, screw nails, suction members, adhesives, bolts, ropes, pins, or jigs. The aforementioned suction members are magnets or suction cups.

[0017] In this embodiment, the first locking device 3 includes a first locking member 31 and a first locking engaging member 32, the first locking member 31 being provided on the buttock support 1 and the first locking engaging member 32 being provided on the waist support 2. By connecting the first locking member 31 to the first locking engaging member 32, the buttock support 1 is locked and fixed to the waist support 2. Alternatively, the first locking member 31 may be provided on the waist support 2 and the first locking engaging member 32 may be provided on the buttock support 1.

[0018] Furthermore, the first locking member 31 includes at least one first engagement buckle 311, and the first locking engagement member 32 includes at least one first engagement groove 321. By engaging the first engagement buckle 311 with the first engagement groove 321, the buttock support 1 is locked and fixed to the lumbar support 2. Specifically, the first locking member 31 includes three first engagement buckles 311, and the first locking engagement member 32 includes three first engagement grooves 321. The engagement structure between the first engagement buckle 311 and the first engagement groove 321 makes the connection less likely to loosen or fall off during use, providing a continuously stable support effect to the user's waist.

[0019] In this embodiment, at least one first insertion groove 33 is recessed at one end of the lumbar support portion 2 that connects to the buttock support portion 1. At least one first insertion groove 33 is provided with a first engagement groove 321. At least one first insertion member 34 is protruding at one end of the buttock support portion 1 that connects to the lumbar support portion 2. At least one first insertion member 34 is provided with a first engagement buckle 311. When the first insertion member 34 is inserted into the first insertion groove 33, the first engagement buckle 311 engages with the first engagement groove 321. Specifically, the buttock support portion 1 is provided with four first insertion grooves 33 and five first insertion members 34 recessed therein. In addition to the fitting and insertion of the first insertion groove 33 and the first insertion member 34, the engagement design of the first engagement buckle 311 and the first engagement groove 321 allows for a firm connection between the lumbar support 2 and the hip support 1. Moreover, the precise fitting of the first insertion member 34 and the first insertion groove 33 makes the assembly process simpler and more efficient, and reduces the effort required from the user when attaching and detaching the support.

[0020] In this embodiment, the lumbar support chair further includes a second locking device 4, and the buttock support section 1 and the lumbar support section 2 are detachably connected via the first locking device 3 and the second locking device 4.

[0021] Specifically, the first locking device 3 includes a first locking member 31 and a first locking engaging member 32. The first locking member 31 is provided on the hip support 1, and the first locking engaging member 32 is provided on the lumbar support 2. The second locking device 4 includes a second locking member 41 and a second locking engaging member 42. The second locking member 41 is provided on the lumbar support 2, and the second locking engaging member 42 is provided on the hip support 1. The hip support 1 and the lumbar support 2 are locked and fixed together by the second locking member 41 being connected to the second locking engaging member 42 and the first locking member 31 being connected to the first locking engaging member 32.

[0022] Furthermore, the first locking member 31 includes at least one first engagement buckle 311. The first locking engagement member 32 includes at least one first engagement groove 321. When the first engagement buckle 311 engages with the first engagement groove 321, the buttock support 1 is locked and fixed to the lumbar support 2. The second locking member 41 includes at least one second engagement buckle 411. The second locking engagement member 42 includes at least one second engagement groove 421. When the second engagement buckle 411 engages with the second engagement groove 421, the buttock support 1 is locked and fixed to the lumbar support 2. As described above, the lumbar support section 2 and the hip support section 1 are designed with a double snap-fit ​​connection structure, where the first engaging buckle 311 engages with the first engaging groove 321 and the second engaging buckle 411 engages with the second engaging groove 421, making the connection less likely to loosen or fall off during use, thus providing a longer-lasting and more stable support effect.

[0023] Furthermore, at least one first insertion groove 33 is recessed at one end of the lumbar support portion 2 that connects to the buttock support portion 1. At least one first insertion groove 33 is provided with a first engagement groove 321. At least one first insertion member 34 is protruding at one end of the buttock support portion 1 that connects to the lumbar support portion 2. At least one first insertion member 34 is provided with a first engagement buckle 311. When the first insertion member 34 is inserted into the first insertion groove 33, the first engagement buckle 311 engages with the first engagement groove 321. At least one second insertion member 35 is protruding at one end of the lumbar support portion 2 that connects to the buttock support portion 1. At least one second insertion member 35 is provided with a second engagement buckle 411. At least one second insertion groove 36 is recessed at one end of the hip support 1 that connects to the lumbar support 2. At least one second insertion groove 36 is provided with a second engagement groove 421. When the second insertion member 35 is inserted into the second insertion groove 36, the second engagement buckle 411 engages with the second engagement groove 421. As described above, in addition to the fitting and insertion of the first insertion groove 33 and the first insertion member 34, the engagement design of the double snap-fit ​​connection allows for a strong connection between the lumbar support 2 and the hip support 1. Moreover, the precise fitting of the insertion member and the insertion groove makes the assembly process simpler and more efficient, and reduces the effort required of the user when attaching and detaching the support.

[0024] In this embodiment, the first insertion member 34 and the second insertion groove 36 are arranged alternately, and the first insertion groove 33 and the second insertion member 35 are arranged alternately. In this way, the double fitting insertion between the first insertion member 34 and the first insertion groove 33, and between the second insertion member 35 and the second insertion groove 36 improves the robustness and stability of the connection part, and the alternating arrangement of the structural design effectively prevents loosening and displacement between the support members, improving the overall stability and load-bearing capacity of the support system. Furthermore, while the user is seated, interaction forces are generated between the first insertion member 34 and the first insertion groove 33, and between the second insertion member 35 and the second insertion groove 36. This force further enhances the support effect of the lumbar support chair, providing stronger lumbar support, especially when the user leans back, reducing the burden on the lumbar spine, and increasing user comfort and safety.

[0025] In this embodiment, the first engaging buckle 311 is provided on the side of the first insertion member 34 closest to the user's buttocks. The first insertion groove 33 is provided on the side of the lumbar support 2 away from the user's waist. The second engaging buckle 411 is provided on the side of the second insertion member 35 closest to the user's waist. The second insertion groove 36 is provided on the side of the buttock support 1 away from the user's buttocks.

[0026] In this embodiment, the buttock support section 1 has at least two protruding first insertion members 34, and the lumbar support section 2 has at least two recessed first insertion grooves 33. The buttock support section 1 has at least two recessed second insertion grooves 36, and the lumbar support section 2 has at least two protruding second insertion members 35. On the side of the buttock support section 1 away from the user's buttocks, a first reinforcing rib 341 is provided, extending downward from the first insertion member 34. On the side of the lumbar support section 2 away from the user's waist, a second reinforcing rib 351 is provided, extending upward from the second insertion member 35. In this way, the installation of the first reinforcing rib 341 and the second reinforcing rib 351 increases the overall rigidity and stability of the insertion members, further strengthens the support effect of the lumbar support chair, and allows the lumbar support chair to withstand greater mechanical loads during long-term use, thereby extending its service life.

[0027] In this embodiment, the length L1 of the first engagement groove 321 is in the range of 1 mm to 150 mm, the height H1 of the first engagement groove 321 is in the range of 1 mm to 40 mm, and the width D1 of the first engagement groove 321 is in the range of 1 mm to 30 mm. Preferably, the length of the first engagement groove 321 is 7 mm, the height of the first engagement groove 321 is 6 mm, and the width of the first engagement groove 321 is 3 mm.

[0028] Furthermore, the length L2 of the first engaging buckle 311 is in the range of 1 mm to 150 mm, the height H2 of the first engaging buckle 311 is in the range of 1 mm to 40 mm, and the width D2 of the first engaging buckle 311 is in the range of 1 mm to 30 mm. Preferably, the length of the first engaging buckle 311 is 6 mm, the height of the first engaging buckle 311 is 5 mm, and the width of the first engaging buckle 311 is 3 mm.

[0029] In this embodiment, the length L3 of the second engagement groove 421 is in the range of 1 mm to 150 mm, the height H3 of the second engagement groove 421 is in the range of 1 mm to 40 mm, and the width D3 of the second engagement groove 421 is in the range of 1 mm to 30 mm. Preferably, the length of the second engagement groove 421 is 7 mm, the height of the second engagement groove 421 is 6 mm, and the width of the second engagement groove 421 is 3 mm.

[0030] Furthermore, the length L4 of the second engaging buckle 411 is in the range of 1 mm to 150 mm, the height H4 of the second engaging buckle 411 is in the range of 1 mm to 40 mm, and the width D4 of the second engaging buckle 411 is in the range of 1 mm to 30 mm. Preferably, the length of the second engaging buckle 411 is 6 mm, the height of the second engaging buckle 411 is 5 mm, and the width of the second engaging buckle 411 is 3 mm.

[0031] In this embodiment, the length L5 of the first insertion member 34 is in the range of 1 mm to 150 mm, the height H5 of the first insertion member 34 is in the range of 3 mm to 150 mm, and the width D5 of the first insertion member 34 is in the range of 1 mm to 30 mm. Preferably, the length of the first insertion member 34 is 49.76 mm, the height of the first insertion member 34 is 29.03 mm, and the width of the first insertion member 34 is 3 mm.

[0032] Furthermore, the length L6 of the first insertion groove 33 is in the range of 1 mm to 150 mm, the height H6 of the first insertion groove 33 is in the range of 3 mm to 150 mm, and the width D6 of the first insertion groove 33 is in the range of 1 mm to 30 mm. Preferably, the length of the first insertion groove 33 is 51.37 mm, the height of the first insertion groove 33 is 29.29 mm, and the width of the first insertion groove 33 is 1.5 mm.

[0033] Furthermore, similarly, the first insertion member 34 and the second insertion member 35 have the same length, height, and width, and the first insertion groove 33 and the second insertion groove 36 have the same length, height, and width.

[0034] In this embodiment, the lumbar support portion 2 includes an upper edge 21, a lower edge 22, a first left edge 23, and a first right edge 24. The upper edge 21 and the lower edge 22 are provided opposite to each other. The first left edge 23 and the first right edge 24 are connected to and opposite the upper edge 21 and the lower edge 22, respectively. The relative length of the upper edge 21 is smaller than the maximum relative length between the first left edge 23 and the first right edge 24. Specifically, the first left edge 23 is an arc-shaped edge, and the first right edge 24 is also an arc-shaped edge.

[0035] In this embodiment, the range value of the maximum relative length L7 between the first left edge 23 and the first right edge 24 is 400 mm to 450 mm. Preferably, the maximum relative length between the first left edge 23 and the first right edge 24 is 432.46 mm. The range value of the relative length L8 of the upper edge 21 is 250 mm to 300 mm. Preferably, the value of the relative length of the upper edge 21 is 272 mm.

[0036] In this embodiment, the buttock support portion 1 includes a front edge 11, a rear edge 12, a second left edge 13, and a second right edge 14. The front edge 11 and the rear edge 12 are provided opposite to each other. The second left edge 13 and the second right edge 14 are connected to and opposite the front edge 11 and the rear edge 12, respectively. The second left edge 13 and the second right edge 14 are located on the same horizontal line. The buttock support portion 1 further includes an upper surface 15 and a bottom surface 16, which are arranged opposite to each other. The range value of the relative distance H7 between the maximum heights of the second left edge 13 and the second right edge 14 and the minimum height of the bottom surface 16 is 80 mm to 100 mm. Preferably, the value of the relative distance between the maximum heights of the second left edge 13 and the second right edge 14 and the minimum height of the bottom surface 16 is 91.4 mm.

[0037] In this embodiment, the front edge 11 includes a first-stage front edge 111, a second-stage front edge 112, and a third-stage front edge 113. The second-stage front edge 112 is located midway between the first-stage front edge 111 and the third-stage front edge 113. The first-stage front edge 111, the second-stage front edge 112, and the third-stage front edge 113 are all arc-shaped edges. The first-stage front edge 111 and the third-stage front edge 113 are concave arc-shaped edges, while the second-stage front edge 112 is an upward-convex arc-shaped edge.

[0038] In this embodiment, the buttock support portion 1 is provided with a plurality of first heat dissipation holes 101. The plurality of first heat dissipation holes 101 are provided symmetrically on the buttock support portion 1. The second flexible pad 105 is provided with a plurality of second heat dissipation holes 106. The first heat dissipation holes 101 and the second heat dissipation holes 106 are in the same position and size. With the above configuration, the heat dissipation effect of the buttock support portion 1 is effectively realized, preventing discomfort due to heat accumulation and maintaining the freshness and comfort of the seat.

[0039] In this embodiment, the buttock support section 1 is provided with a partition projection 102. A recessed first leg support groove 103 is formed at the left end of the partition projection 102 and the buttock support section 1, and a recessed second leg support groove 104 is formed at the right end of the partition projection 102 and the buttock support section 1. The lumbar support section 2 includes a left lumbar support plate 201, an intermediate lumbar support plate 202, and a right lumbar support plate 203. The left lumbar support plate 201 and the right lumbar support plate 203 are installed symmetrically and both are convex toward the user. With the above configuration, the configuration of the first leg support groove 103 and the second leg support groove 104 allows the seat to better adapt to the user's body shape, provide a fitted seating experience, optimize the seat's fit, enhance the overall support effect, and allow the user to have a comfortable experience in various sitting postures.

[0040] In this embodiment, the lumbar support portion 2 is further provided with a first handle hole 204. The first handle hole 204 is located at the upper end, away from the hip support portion 1. A first flexible pad 205 is connected to one side of the lumbar support portion 2 facing the user. The lumbar support portion 2 is provided with the first handle hole 204. The first flexible pad 205 is provided with a second handle hole 206. The first handle hole 204 and the second handle hole 206 are in the same position and size. The first flexible pad 205 is composed of a plurality of sponge blocks. Each sponge block is separated by a first heat dissipation chamber. A second flexible pad 105 is connected to the side of the hip support portion facing the user. The second flexible pad 105 is composed of a plurality of sponge blocks. Each sponge block is separated by a second heat dissipation chamber. Multiple first heat dissipation holes are provided in the hip support section. Multiple second heat dissipation holes 106 are provided in the second flexible pad 105. The first heat dissipation holes and the second heat dissipation holes 106 are in the same position and size. [Examples]

[0041] Embodiment 2 Referring to Figures 15 and 16, the only difference between this embodiment and Embodiment 1 is the connection method and structure between the lumbar support section 2 and the buttock support section 1, and the details are as follows.

[0042] In this embodiment, the first locking member 31 includes an insertion groove 300 and a position limiting member 310 provided at the bottom of the buttock support 1. The insertion groove 300 includes a third insertion groove 320 and a plurality of insertion leg grooves 330. The third insertion groove 320 communicates with the plurality of insertion leg grooves 330. The first locking engagement member 32 is a lateral insertion portion 5 connected to the lower end of the waist support 2. The lateral insertion portion 5 includes a third insertion member 51 fitted into the third insertion groove 320 and a plurality of insertion leg members 52 connected to the third insertion member 51 and fitted into the insertion leg grooves 330. The position limiting member 310 is connected to both the left and right sides of the buttock support 1 and covers the insertion leg grooves 330, and is used to limit the lateral insertion portion 5 within the insertion groove 300.

[0043] Alternatively, the first locking member 31 includes an insertion groove 300 and a position limiting member 310 provided at the bottom of the waist support 2. The insertion groove 300 includes a third insertion groove 320 and a plurality of insertion leg grooves 330. The third insertion groove 320 communicates with the plurality of insertion leg grooves 330. The first locking engagement member 32 is a lateral insertion portion 5 connected to the lower end of the buttock support 1. The lateral insertion portion 5 includes a third insertion member 51 fitted into the third insertion groove 320 and a plurality of insertion leg members 52 connected to the third insertion member 51 and fitted into the insertion leg grooves 330. The position limiting member 310 is connected to both the left and right sides of the buttock support 1 and covers the insertion leg grooves 330, and is used to limit the lateral insertion portion 5 within the insertion groove 300. [Examples]

[0044] Embodiment 3 Referring to Figures 17 and 18, the only difference between this embodiment and Embodiment 1 is the connection method and structure between the lumbar support section 2 and the buttock support section 1, and the details are as follows.

[0045] In this embodiment, the first locking member 31 includes an insertion end 6 provided on the buttock support portion 1, and a first position limiting groove 61 and a second position limiting groove 62 provided on the upper and lower surfaces of the buttock support portion 1. The first locking engaging member 32 includes a lateral connecting portion 7 connected to the lower end of the waist support portion 2. The lateral connecting portion 7 comprises an upper position limiting member 71 and a lower position limiting member 72. An insertion space is formed between the upper position limiting member 71 and the lower position limiting member 72. There is a gap between one end of the upper position limiting member 71 and one end of the lower position limiting member 72, and as a result, the upper position limiting member 71 has a first position limiting projection 711 that fits into the first position limiting groove 61, and the lower position limiting member 72 has a second position limiting projection 721 that fits into the second position limiting groove 62. The first locking member 31 engages with the first locking engaging member 32 along the direction in which the first locking member 31 is distributed, so that the buttock support portion 1 is connected to the lumbar support portion 2.

[0046] Alternatively, the first locking member 31 includes an insertion end 6 provided on the waist support portion 2, and a first position limiting groove 61 and a second position limiting groove 62 provided on the upper and lower surfaces of the waist support portion 2. The first locking engagement member 32 includes a lateral connecting portion 7 connected to the lower end of the buttock support portion 1. The lateral connecting portion 7 comprises an upper position limiting member 71 and a lower position limiting member 72. An insertion space is formed between the upper position limiting member 71 and the lower position limiting member 72. There is a gap between one end of the upper position limiting member 71 and one end of the lower position limiting member 72, which allows the upper position limiting member 71 to have a first position limiting projection 711 that fits into the first position limiting groove 61, and the lower position limiting member 72 to have a second position limiting projection 721 that fits into the second position limiting groove 62. The first locking member 31 engages with the first locking engaging member 32 along the direction in which the first locking member 31 is distributed, so that the lumbar support portion 2 is connected to the buttock support portion 1. [Examples]

[0047] Embodiment 4 Referring to Figures 19 to 21, the only difference between this embodiment and Embodiment 1 is the connection method and structure between the lumbar support section 2 and the buttock support section 1, and the details are as follows.

[0048] In this embodiment, a vertical connection portion 8 is connected to the hip support portion 1. The first locking member 31 includes a plurality of first engagement blocks 81 provided on the vertical connection portion 8. The first locking engagement member 32 includes a first engagement cavity 9. The first engagement cavity 9 is provided at one end of the lumbar support portion 2 that connects to the vertical connection portion 8 and engages with the first engagement block 81. The second locking member 41 includes a second engagement block 91 provided at one end of the lumbar support portion 2 that connects to the vertical connection portion 8. The second locking engagement member 42 includes a second engagement cavity 82. The second engagement cavity 82 is provided on the vertical connection portion 8 and engages with the second engagement block 91. The first engagement blocks 81 and the second engagement cavity 82 are arranged alternately. The second engagement blocks 91 and the first engagement cavity 9 are arranged alternately.

[0049] Alternatively, a vertical connection portion 8 is connected to the lumbar support portion 2. The first locking member 31 includes a plurality of first engagement blocks 81 provided on the vertical connection portion 8. The first locking engagement member 32 includes a first engagement cavity 9. The first engagement cavity 9 is provided at one end of the hip support portion 1 that connects to the vertical connection portion 8 and engages with the first engagement block 81. The second locking member 41 includes a second engagement block 91 provided at one end of the hip support portion 1 that connects to the vertical connection portion 8. The second locking engagement member 42 includes a second engagement cavity 82. The second engagement cavity 82 is provided on the vertical connection portion 8 and engages with the second engagement block 91. The first engagement blocks 81 and the second engagement cavity 82 are arranged alternately. The second engagement blocks 91 and the first engagement cavity 9 are arranged alternately. [Examples]

[0050] Embodiment 5 Referring to Figures 22 to 23, the only difference between this embodiment and Embodiment 1 is the connection method and structure between the lumbar support section 2 and the buttock support section 1, and the details are as follows.

[0051] In this embodiment, the first locking member 31 includes a plurality of first locking holes 301 provided in the hip support portion 1. The lumbar support portion 2 is provided with a lateral connecting portion 7. The second locking member 41 includes a plurality of second locking holes 401 provided in the lateral connecting portion 7. By using screws and inserting them through the first locking holes 301 and the second locking holes 401, the lateral connecting portion 7 can be fixed and locked to the hip support portion 1.

[0052] Alternatively, the first locking member 31 includes a plurality of first locking holes 301 provided in the lumbar support portion 2. The hip support portion 1 is provided with a lateral connecting portion 7. The second locking member 41 includes a plurality of second locking holes 401 provided in the lateral connecting portion 7. By using screws and inserting them through the first locking holes 301 and the second locking holes 401, the lateral connecting portion 7 can be fixed and locked to the lumbar support portion 2.

[0053] In the embodiments of the present invention, all directional indicators (e.g., up, down, left, right, front, back, etc.) are used solely to interpret the relative positional relationships and motion conditions between each component in a specific orientation (as shown in the drawings). When this specific orientation changes, the directional indicators also change accordingly.

[0054] Furthermore, descriptions relating to "first," "second," etc., in this invention are used solely for explanatory purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the number of specified technical features. Therefore, the features limiting "first" and "second" may explicitly or implicitly include at least one other feature. Moreover, "and / or" in the entire text includes three cases, using A and / or B as an example: A, B, and A and B satisfying simultaneously. Technical features between embodiments may also be combined based on what a person skilled in the art can achieve. If a combination of technical features results in a contradiction or is not achievable, such a combination of technical features is considered nonexistent and does not fall within the scope of protection required by this invention.

[0055] The foregoing describes only preferred embodiments of the present invention and does not limit the scope of the patent. All equivalent structural transformations performed using the contents of the specification and drawings of the present invention, or those used directly or indirectly in other related fields, are included within the scope of protection of the present invention. [Explanation of symbols]

[0056] 1 Buttock support 101 1st heat radiation hole 102 Partition protrusions 103 1st leg support groove 104 Second leg support groove 105 Second Flexible Pad 106 2nd heat radiation hole 11 Leading edge 111 1st stage leading edge 112 2nd stage leading edge 113 3rd stage leading edge 12 Trailing edge 13. Second left margin 14 2nd right edge 15 Top side 16. Base 2 Lumbar support part 201 Left side lumbar support plate 202 Intermediate lumbar support plate 203 Right side lumbar support plate 204 First handle hole 205 First Flexible Pad 206 Second handle hole 21 Upper edge 22 Lower edge 23 First left margin 24 1st right edge 3. First locking device 300 Insertion groove 31 First locking member 310 Position limiting member 311 First engaging buckle 32 First locking engagement member 320 3rd insertion groove 321 First engagement groove 33 1st insertion groove 330 Insertion leg groove 34 First insertion member 341 First Reinforcement Rib 35 Second insertion member 351 Second Reinforcement Rib 36 2nd insertion groove 4. Second locking device 41 Second locking member 411 Second engagement buckle 42 Second locking engagement member 421 Second engagement groove 5 Lateral insertion part 51 Third insertion member 52 Insertion leg member 6 Insertion end 61 First position limiting groove 62 Second position limiting groove 7 Lateral connection section 71 Upper position limiting member 711 First position limiting projection 72 Lower position limiting member 721 Second position limiting projection 8. Vertical connection section 81 First engagement block 82 Second engagement cavity 9. First engagement cavity

Claims

1. It includes a buttock support (1), a lumbar support (2), and a first locking device (3), The buttock support portion (1) is used to support at least a portion of the user's buttocks and at least a portion of their legs. The lumbar support portion (2) is used to support at least a portion of the user's lumbar region. A lumbar support chair characterized in that the buttock support (1) and the lumbar support (2) are detachably connected by the first locking device (3).

2. The lumbar support chair according to claim 1, further comprising a second locking device (4), wherein the buttock support portion (1) and the lumbar support portion (2) are detachably connected via the first locking device (3) and the second locking device (4).

3. The first locking device (3) includes a first locking member (31) and a first locking engaging member (32), the first locking member (31) being provided on the buttock support portion (1), and the first locking engaging member (32) being provided on the waist support portion (2). The first locking member (31) is connected to the first locking engaging member (32), thereby locking and fixing the buttock support portion (1) to the lumbar support portion (2). Alternatively, the lumbar support chair according to claim 1, characterized in that the first locking member (31) is provided on the lumbar support portion (2), and the first locking engaging member (32) is provided on the buttock support portion (1).

4. The buttock support portion (1) and the lumbar support portion (2) are detachably connected by a buckle, rivet, screw, screw nail, suction member, adhesive, bolt, rope, pin or jig. The lumbar support chair according to claim 1, characterized in that the adsorption member is a magnet or a suction cup.

5. The first locking member (31) includes at least one first engaging buckle (311), and the first locking engaging member (32) includes at least one first engaging groove (321). The lumbar support chair according to claim 3, characterized in that the buttock support portion (1) is locked and fixed to the lumbar support portion (2) by the engagement of the first engagement buckle (311) with the first engagement groove (321).

6. At least one first insertion groove (33) is recessed in one end of the lumbar support portion (2) that is connected to the buttock support portion (1), and at least one of the first insertion grooves (33) is provided with the first engagement groove (321). At least one first insertion member (34) is provided protruding from one end of the buttock support portion (1) that is connected to the lumbar support portion (2), and at least one first insertion member (34) is provided with the first engagement buckle (311). When the first insertion member (34) is inserted into the first insertion groove (33), the first engagement buckle (311) engages with the first engagement groove (321). The first engagement buckle (311) is provided on the side of the first insertion member (34) closer to the user's buttocks. The lumbar support chair according to claim 5, characterized in that the first insertion groove (33) is provided on the side of the lumbar support portion (2) away from the user's waist.

7. The first locking device (3) includes a first locking member (31) and a first locking engaging member (32), the first locking member (31) being provided on the buttock support portion (1) and the first locking engaging member (32) being provided on the waist support portion (2); the second locking device (4) includes a second locking member (41) and a second locking engaging member (42), the second locking member (41) being provided on the waist support portion (2) and the second locking engaging member (42) being provided on the buttock support portion (1); The lumbar support chair according to claim 2, characterized in that the buttock support portion (1) is locked and fixed to the lumbar support portion (2) by the second locking member (41) being connected to the second locking engagement member (42) and the first locking member (31) being connected to the first locking engagement member (32).

8. The first locking member (31) includes at least one first engaging buckle (311), and the first locking engaging member (32) includes at least one first engaging groove (321). When the first engagement buckle (311) engages with the first engagement groove (321), the buttock support portion (1) is locked and fixed to the lumbar support portion (2). The second locking member (41) includes at least one second engagement buckle (411), and the second locking engagement member (42) includes at least one second engagement groove (421). The lumbar support chair according to claim 7, characterized in that the buttock support portion (1) is locked and fixed to the lumbar support portion (2) by the engagement of the second engagement buckle (411) with the second engagement groove (421).

9. At one end of the lumbar support portion (2) connected to the buttock support portion (1), at least one first insertion groove (33) is recessed, and at least one first insertion groove (33) is provided with a first engagement groove (321). At least one first insertion member (34) is provided protruding from one end of the buttock support portion (1) that connects to the lumbar support portion (2), and at least one first insertion member (34) is provided with a first engagement buckle (311). When the first insertion member (34) is inserted into the first insertion groove (33), the first engagement buckle (311) engages with the first engagement groove (321). At least one second insertion member (35) is provided protruding from one end of the lumbar support portion (2) that connects to the buttock support portion (1), and at least one of the second insertion members (35) is provided with a second engagement buckle (411). At least one of the buttock support portions (1) connected to the lumbar support portion (2) is recessed with the second insertion groove (36), and at least one of the second insertion grooves (36) is provided with the second engagement groove (421). The lumbar support chair according to claim 8, characterized in that when the second insertion member (35) is inserted into the second insertion groove (36), the second engagement buckle (411) engages with the second engagement groove (421).

10. The buttock support portion (1) has at least two first insertion members (34) protruding from it, the lumbar support portion (2) has at least two first insertion grooves (33) recessed from it, the buttock support portion (1) has at least two second insertion grooves (36) recessed from it, and the lumbar support portion (2) has at least two second insertion members (35) protruding from it. On the side of the buttock support portion (1) away from the user's buttocks, a first reinforcing rib (341) is provided, extending downward from the first insertion member (34). On the side of the lumbar support portion (2) away from the user's waist, a second reinforcing rib (351) is provided, extending upward from the second insertion member (35). The lumbar support chair according to claim 9, characterized in that the first insertion member (34) and the second insertion groove (36) are arranged alternately, and the first insertion groove (33) and the second insertion member (35) are arranged alternately.

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