Supporting structure of seat

Abstract

The utility model relates to the technical field of seats, and discloses a seat supporting structure which comprises supporting columns arranged in a bilateral symmetry mode and an upper cross beam used for being connected with the supporting columns. The supporting column comprises an upper supporting column, a plastic bending piece detachably connected with the lower portion of the upper supporting column and a lower supporting column detachably connected with the lower portion of the plastic bending piece. The upper supporting column and the lower supporting column are respectively inclined backwards, and the plastic bending piece is bent backwards from top to bottom and is used for connecting the upper supporting column and the lower supporting column. The supporting column is divided into the upper supporting column, the plastic bending part and the lower supporting column, the position of the backrest subsequently installed on the front side face of the upper supporting column can move forwards, the front side face of the upper portion of the plastic bending part forms curvature, the upper middle portion of the backrest and the upper supporting column can form the same backward inclination angle, and the lower portion of the backrest is bent backwards. And a waist supporting area is formed, so that the seat better meets the angle requirement of ergonomics.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a supporting structure of a seat. Background Art

[0002] The chair is generally composed of a support frame, a seat with a flip function, a backrest and other structures. In order to match the comfort of a person's back leaning on the chair, the support column or the backrest in the support frame is generally made to tilt backwards, for example, at an angle of 10° to meet the requirements of human mechanics. Figure 1 It can be seen that it discloses a backward-tilted support column, a chair back and a support arranged thereon, and a seat arranged on the support. The support column and the chair back are tilted backward at a certain angle, but it can be seen from the figure that the chair back as a whole is a straight board tilted backward, that is to say, it does not have a structure to support the waist, so that the sitting feeling of the passengers is still poor.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide a support structure for a seat, aiming to split the original support column into three parts, replacing the middle part of the support column with a curved plastic bent part, so that the middle part of the support column has a curvature, so that the backrest installed on the support column is more in line with the ergonomic angle requirements.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A support structure for a seat, comprising support columns symmetrically arranged on the left and right, and an upper crossbeam for connecting the support columns; the support columns include an upper support column, a plastic bent piece detachably connected to the lower portion of the upper support column, and a lower support column detachably connected to the lower portion of the plastic bent piece; the upper support column and the lower support column are respectively inclined rearward, the plastic bent piece is bent rearward from top to bottom, and is used to connect the upper support column and the lower support column.

[0007] The support structure of the seat, wherein the upper pillar and the lower pillar are both hollow structures, an upper plug block is provided at the upper part of the plastic bent part, and the upper plug block is plugged into the inner cavity of the upper pillar; a lower plug block is provided at the lower part of the plastic bent part, and the lower plug block is plugged into the inner cavity of the lower pillar.

[0008] The support structure of the seat, wherein a plurality of upper protrusions are arranged on the outer peripheral wall of the upper plug block, and the outer peripheral wall of the upper protrusions is used to abut against the cavity wall of the inner cavity of the upper pillar; a plurality of lower protrusions are arranged on the outer peripheral wall of the lower plug block, and the outer peripheral wall of the lower protrusions is used to abut against the cavity wall of the inner cavity of the lower pillar.

[0009] The supporting structure of the seat is described, wherein the upper pillar is provided with an upper first reinforcement hole, in which an upper fixing piece is provided, and the upper fixing piece is used to fix the upper pillar and the upper insert block; the lower pillar is provided with a lower first reinforcement hole, in which a lower fixing piece is provided, and the lower fixing piece is used to fix the lower pillar and the lower insert block.

[0010] The support structure of the seat, wherein the upper surface of the plastic bent piece is provided with an upper surround, the upper surround is arranged around the edge of the upper part of the plastic bent piece, and the upper surround is used to cover the lower part of the upper pillar; the lower surface of the plastic bent piece is provided with a lower surround, the lower surround is arranged around the edge of the lower part of the plastic bent piece, and the lower surround is used to cover the upper part of the lower pillar.

[0011] The support structure of the seat, wherein the plastic bent part includes a mounting portion and a cover plate; the mounting portion is used to connect the upper support and the lower support, a cavity is formed in the mounting portion, and the cover plate is used to cover the cavity.

[0012] The seat support structure, wherein the mounting portion is located on the outside, the opening of the cavity faces inward, and the cover plate is located on the inner side of the mounting portion.

[0013] In the support structure of the seat, a plurality of mounting ears are fixedly connected to the inner side of the upper support column, and the plurality of mounting ears are respectively used for being fixedly connected to the back side of the backrest.

[0014] The support structure of the seat, wherein the bottom of the lower support is fixedly connected to a base, and the base is fixedly connected to the ground by ground screws.

[0015] Beneficial effects:

[0016] The utility model provides a supporting structure of a seat. Compared with the existing integral supporting column, the supporting column is disassembled into an upper column, a plastic bent part and a lower column, and the shape of the plastic bent part is limited, not only the position of the backrest subsequently installed on the front side of the upper column can be moved forward, but also the front side of the upper part of the plastic bent part is formed with a curvature, which can make the upper and middle part of the backrest form the same backward inclination angle with the upper column, and the lower part of the backrest is bent backward to form a lumbar support area, so that the seat is more in line with the angle requirements of ergonomics; in addition, the supporting column can be disassembled, and the disassembled support column can be packaged and transported, which is conducive to reducing the volume of the package. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the support structure of the seat provided by the utility model Figure 1 .

[0018] Figure 2 Schematic diagram of the seat support structure Figure 2 .

[0019] Figure 3 This is a left side view of the seat's supporting structure.

[0020] Figure 4 A partial cross-sectional view of the seat support structure.

[0021] Figure 5 It is a schematic diagram of the structure of a plastic bending part.

[0022] Description of main component symbols: 1-support column, 11-upper support, 111-upper first reinforcement hole, 112-installation ear piece, 12-plastic bending piece, 121-installation part, 1211-upper plug block, 1212-lower plug block, 1213-upper protrusion, 1214-lower protrusion, 1215-upper surrounding edge, 1216-lower surrounding edge, 122-cover plate, 13-lower support, 131-lower first reinforcement hole, 2-upper crossbeam, 3-base;

[0023] 10-seat, 20-backrest. DETAILED DESCRIPTION

[0024] The utility model provides a support structure of a seat. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0025] Figure 1 and Figure 2 A double-seat seat is shown, wherein one seat (left) shows the full view of the seat, and the other seat (right) hides the seat bag 10 and the backrest 20.

[0026] See also Figure 1-Figure 3 The utility model provides a support structure of a seat, including support columns 1 symmetrically arranged on the left and right, and an upper crossbeam 2 for connecting the support columns 1; the support columns 1 include an upper support column 11, a plastic bent piece 12 detachably connected to the lower portion of the upper support column 11, and a lower support column 13 detachably connected to the lower portion of the plastic bent piece 12; the upper support column 11 and the lower support column 13 are respectively inclined backwards, the plastic bent piece 12 is bent backwards from top to bottom, and is used to connect the upper support column 11 and the lower support column 13.

[0027] When installing the support column 1, the scattered upper support columns 11, the plastic bent parts 12 and the lower support columns 13 are installed one by one in sequence to form a plurality of support columns 1, and then the two support columns 1 are fixed by the upper cross beam 2 to form a support structure, and then the seat bag 10, the backrest 20, etc. are installed on the support structure.

[0028] Compared with the existing integral support column, the present solution splits the support column 1 into an upper pillar 11, a plastic bent part 12 and a lower pillar 13, and limits the shape of the plastic bent part 12, which not only enables the position of the backrest 20 subsequently installed on the front side of the upper pillar 11 to be moved forward, but also the front side of the upper part of the plastic bent part 12 is formed with a curvature, which allows the upper and middle parts of the backrest 20 to form the same backward tilt angle as the upper pillar 11, and the lower part of the backrest 20 is bent backward to form a lumbar support area, so that the seat is more ergonomic in terms of angle requirements; in addition, the support column 1 can be split, and the split support column 1 can be packaged and transported, which is beneficial to reducing the volume of the package.

[0029] See also Figure 4 and Figure 5 In some embodiments, the upper support 11 and the lower support 13 are both hollow structures, and an upper plug block 1211 is provided at the upper part of the plastic curved piece 12, and the upper plug block 1211 is plugged into the inner cavity of the upper support 11; a lower plug block 1212 is provided at the lower part of the plastic curved piece 12, and the lower plug block 1212 is plugged into the inner cavity of the lower support 13. The upper support 11 and the lower support 13 are set to be hollow, which is used to reduce weight on the one hand, and facilitates the plugging of the plastic curved piece 12 on the other hand, so as to realize the rapid assembly of the support column 1.

[0030] See also Figure 4 and Figure 5In some embodiments, the outer peripheral wall of the upper plug block 1211 is provided with a plurality of upper protrusions 1213, and the outer peripheral wall of the upper protrusions 1213 is used to abut against the cavity wall of the inner cavity of the upper pillar 11; the outer peripheral wall of the lower plug block 1212 is provided with a plurality of lower protrusions 1214, and the outer peripheral wall of the lower protrusions 1214 is used to abut against the cavity wall of the inner cavity of the lower pillar 13. Specifically, the plurality of upper protrusions 1213 and lower protrusions 1214 are more conducive to inserting the upper plug block 1211 / lower plug block 1212 into the inner cavity of the upper pillar 11 / lower pillar 13, reducing the friction resistance during insertion.

[0031] See also Figure 1-Figure 3 In some embodiments, the upper pillar 11 is provided with an upper first reinforcement hole 111, and an upper fixing member (not shown in the figure) is provided in the upper first reinforcement hole 111, and the upper fixing member is used to fix the upper pillar 11 and the upper plug block 1211; the lower pillar 13 is provided with a lower first reinforcement hole 131, and a lower fixing member (not shown in the figure) is provided in the lower first reinforcement hole 131, and the lower fixing member is used to fix the lower pillar 13 and the lower plug block 1212. After the plug-in is completed, the plastic bending part 12 needs to be firmly connected to the upper pillar 11 and the lower pillar 13 by driving the upper fixing member or the lower fixing member into the upper first reinforcement hole 111 or the lower first reinforcement hole 131. Specifically, the upper fixing member and the lower fixing member can be self-tapping screws, and the plastic bending part 12 is locked by the self-tapping screws. More specifically, in order to improve the aesthetics of seats with multiple seats, the upper first reinforcement holes 111 and the lower first reinforcement holes 131 in the support columns 1 on both sides of each row of seats are arranged on the inner side of the support columns 1, that is, the upper first reinforcement holes 111 and the lower first reinforcement holes 131 are designed to be hidden, while the upper first reinforcement holes 111 and the lower first reinforcement holes 131 on the support column 1 located in the middle are opened on both sides of the support column 1, and self-tapping screws can be driven into any side during assembly.

[0032] See also Figure 4 and Figure 5 In some embodiments, the upper surface of the plastic curved member 12 is provided with an upper edge 1215, which is arranged around the upper edge of the plastic curved member 12 and is used to cover the lower part of the upper pillar 11; the lower surface of the plastic curved member 12 is provided with a lower edge 1216, which is arranged around the lower edge of the plastic curved member 12 and is used to cover the upper part of the lower pillar 13. The edge positions of the upper edge 1215 and the lower edge 1216 are designed to be smooth. After the plug-in is completed, the lower part of the upper pillar 11 is wrapped by the upper edge 1215, and the upper part of the lower pillar 13 is wrapped by the lower edge 1216, and the overall aesthetics of the seat is enhanced.

[0033] See also Figure 2 and Figure 5 In some embodiments, the plastic curved member 12 includes a mounting portion 121 and a cover plate 122; the mounting portion 121 is used to connect the upper support 11 and the lower support 13, a cavity is formed in the mounting portion 121, and the cover plate 122 is used to cover the cavity. Specifically, the hollow plastic curved member 12 is formed by an injection molding process, and embedded parts are provided on the mounting portion 121 and the cover plate 122. The mounting portion 121 and the cover plate 122 are locked by driving screws into the embedded parts. In addition, the cavity and internal parts of the mounting portion 121 are covered by the cover plate 122, which is conducive to improving the aesthetics of the seat.

[0034] See also Figure 2 In some embodiments, the mounting portion 121 is located on the outside, the opening of the cavity faces the inside, and the cover plate 122 is located on the inside of the mounting portion 121. With the above arrangement, the user will hardly notice the gap between the mounting portion 121 and the cover plate 122, thereby further improving the aesthetics of the plastic bending part 12.

[0035] See also Figure 2 In some embodiments, a plurality of mounting lugs 112 are fixedly connected to the inner side of the upper support column 11, and the plurality of mounting lugs 112 are respectively used to be fixedly connected to the back of the backrest 20. Specifically, in this embodiment, the backrest 20 can be fixed to the support column 1 by driving screws / bolts and cooperating with nuts; or when the backrest 20 is a plastic product, the screws / bolts can be used to cooperate with the embedded parts on the back of the backrest 20.

[0036] See also Figure 1 In some embodiments, the bottom of the lower support 13 is fixedly connected to a base 3, and the base 3 is fixedly connected to the ground through ground screws. After the seat is assembled, the seat is fixed to the ground by driving the ground screws into the base 3 and the ground.

[0037] To sum up, compared with the existing integral support column, the utility model disassembles the support column 1 into an upper column 11, a plastic bent part 12 and a lower column 13, and limits the shape of the plastic bent part 12, which not only enables the position of the backrest 20 subsequently installed on the front side of the upper column 11 to be moved forward, but also the front side of the upper part of the plastic bent part 12 is formed with a curvature, which can make the upper and middle parts of the backrest 20 form the same backward tilt angle with the upper column 11, and the lower part of the backrest 20 is bent backward to form a lumbar support area, so that the seat is more ergonomic in angle requirements; in addition, the support column 1 can be disassembled, and the disassembled support column 1 can be packaged and transported, which is beneficial to reduce the volume of the package.

[0038] 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" and the like 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0040] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A seat support structure, characterized in that: It includes support columns that are symmetrically arranged on the left and right, and an upper crossbeam for connecting the support columns; the support columns include an upper support column, a plastic bent piece that is detachably connected to the lower portion of the upper support column, and a lower support column that is detachably connected to the lower portion of the plastic bent piece; the upper support column and the lower support column are respectively inclined rearward, and the plastic bent piece is bent rearward from top to bottom and is used to connect the upper support column and the lower support column.

2. The seat support structure according to claim 1, characterized in that: The upper support and the lower support are both hollow structures. An upper plug block is provided on the upper part of the plastic bending part, and the upper plug block is plugged into the inner cavity of the upper support; a lower plug block is provided on the lower part of the plastic bending part, and the lower plug block is plugged into the inner cavity of the lower support.

3. The seat support structure according to claim 2, characterized in that: A plurality of upper protrusions are arranged on the outer peripheral wall of the upper plug block, and the outer peripheral wall of the upper protrusions is used to abut against the cavity wall of the inner cavity of the upper support; a plurality of lower protrusions are arranged on the outer peripheral wall of the lower plug block, and the outer peripheral wall of the lower protrusions is used to abut against the cavity wall of the inner cavity of the lower support.

4. The seat support structure according to claim 3, characterized in that: The upper support column is provided with an upper first reinforcement hole, in which an upper fixing piece is provided, and the upper fixing piece is used to fix the upper support column and the upper insert block; the lower support column is provided with a lower first reinforcement hole, in which a lower fixing piece is provided, and the lower fixing piece is used to fix the lower support column and the lower insert block.

5. The seat support structure according to claim 2, characterized in that: An upper edge is arranged on the upper surface of the plastic bent piece, the upper edge is arranged around the edge of the upper part of the plastic bent piece, and the upper edge is used to cover the lower part of the upper support; a lower edge is arranged on the lower surface of the plastic bent piece, the lower edge is arranged around the edge of the lower part of the plastic bent piece, and the lower edge is used to cover the upper part of the lower support.

6. The seat support structure according to claim 1, characterized in that: The plastic bending part comprises a mounting portion and a cover plate; the mounting portion is used to connect the upper support and the lower support, a cavity is formed in the mounting portion, and the cover plate is used to cover the cavity.

7. The seat support structure according to claim 6, characterized in that: The mounting portion is located on the outside, the opening of the cavity faces the inside, and the cover plate is located on the inside of the mounting portion.

8. The seat support structure according to claim 1, characterized in that: A plurality of mounting lugs are fixedly connected to the inner side of the upper support column, and the plurality of mounting lugs are respectively used for being fixedly connected to the back side of the backrest.

9. The seat support structure according to claim 1, characterized in that: The bottom of the lower support is fixedly connected with a base, and the base is fixedly connected to the ground through ground screws.

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