Seat assembling structure

Abstract

The utility model provides a seat assembling structure which comprises a seat shell and a transverse support assembly, and sliding receding grooves which are communicated inside and outside and extend in the front-back direction are formed in the left side and the right side of the seat shell; the transverse support assembly comprises a first support and a second support which are split and are in bilateral symmetry, the whole transverse support is replaced by the first support and the second support which are split and are in bilateral symmetry, and the first support and the second support penetrate into the seat shell from the sliding receding grooves in the left side and the right side respectively and then are spliced. The width of the sliding receding groove does not need to be enlarged, meanwhile, the insertion time of the transverse support is shortened, the strength of the seat shell is guaranteed, and the assembly efficiency is improved.

Description

Technical Field

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

[0002] To accommodate users of different body shapes, existing office chairs for adults or study chairs for children all have a seat depth adjustment function. By changing the distance between the front end of the seat and the backrest, the needs of users of different body shapes can be met.

[0003] The applicant has designed a chair in which the seat depth can be changed by sliding the backrest back and forth, wherein the backrest is connected to a back bracket, and the back bracket includes a U-shaped frame 3 for connecting the backrest, and a transverse bracket 2 that is separate from the U-shaped frame 3 and slidably connected to the seat shell. When the seat depth needs to be adjusted, the U-shaped frame 3 is pulled back and forth to make the transverse bracket 2 slide back and forth in the sliding avoidance groove 11, and at the same time change the distance between the backrest and the front end of the seat shell 1, thereby achieving the purpose of adjusting the seat depth. However, such a design is inconvenient when inserting the transverse bracket 2.

[0004] like Figure 6-7 As shown, when the longer transverse bracket 2 is inserted into the seat shell 1, one end thereof needs to pass through one of the sliding avoidance grooves 11 and then pass out of the other sliding avoidance groove 11. However, due to the large number of structures and components in the seat shell 1, it is easy to collide with other components in the seat shell 1 during insertion, affecting the assembly efficiency of the seat.

[0005] If the sliding avoidance groove 11 is enlarged to facilitate the installation of the transverse bracket 2 , larger cavities will be left on the left and right sides of the seat shell 1 , affecting the overall structural strength of the seat shell 1 . Summary of the Invention

[0006] In order to solve the above-mentioned technical problems, the utility model provides a seat assembly structure, which replaces the overall transverse bracket with two separate and left-right symmetrical first bracket and second bracket, and makes the first bracket and second bracket respectively pass through the sliding avoidance grooves on the left and right sides and then spliced ​​together. There is no need to expand the width of the sliding avoidance groove. At the same time, the insertion time of the transverse bracket is shortened, thereby ensuring the strength of the seat shell and improving the assembly efficiency.

[0007] The technical solution of the present utility model is achieved as follows:

[0008] A seat assembly structure, comprising:

[0009] The seat shell has sliding avoidance grooves on its left and right sides that are connected to the inside and outside and extend in the front-to-back direction;

[0010] The transverse bracket assembly includes two separate and left-right symmetrical first and second brackets. The first bracket includes a first connecting section facing the second bracket, and the second bracket includes a second connecting section facing the first bracket. The first connecting section and the second connecting section can be inserted into the seat shell from the sliding avoidance grooves on the left and right sides respectively and then spliced ​​together to pass the transverse bracket assembly into the seat shell.

[0011] Preferably, the first connecting section and the second connecting section are spliced ​​together and fixed by screws.

[0012] Preferably, a threaded hole is provided on the first connecting segment, and a through hole corresponding to the position of the threaded hole is provided on the second connecting segment. The screw passes through the through hole and is screwed into the threaded hole to keep the first connecting segment and the second connecting segment relatively fixed.

[0013] Preferably, a positioning groove is provided on the first connecting section, a positioning portion matching the positioning groove is provided on the second connecting section, a threaded hole is provided at the bottom of the positioning groove, a through hole is provided on the positioning portion, and the positioning portion is inserted into the positioning groove so that the through hole is aligned with the threaded hole; the difficulty of installing the screws is reduced and the assembly efficiency is improved.

[0014] Preferably, a buckle is provided at the bottom end of the positioning portion, the upper end of the positioning groove is open outward, and the bottom of the positioning groove is provided with an overlapping hole matching the buckle. When the positioning portion is inserted into the positioning groove, the buckle is inserted into the overlapping hole longitudinally; before inserting the screws, the first connecting section and the second connecting section are kept relatively fixed in the horizontal direction to facilitate screw installation.

[0015] Preferably, an extension column is provided at the bottom of the first connecting section, and the threaded hole passes through the extension column; the extension column can increase the extension length of the threaded hole to facilitate the insertion of a longer screw, thereby ensuring the connection effect between the first connecting section and the second connecting section.

[0016] Preferably, the first connecting section and the second connecting section are connected to each other by plugging.

[0017] Preferably, the first connecting section has a sleeve, and the second connecting section has a plug-in section matching the inner cavity of the sleeve. The plug-in section is inserted into the inner cavity of the sleeve, so that the first connecting section and the second connecting section are spliced ​​together.

[0018] Preferably, the sleeve is provided with a card hole connected to the outside world, and the plug-in section is provided with an elastic card buckle. When the plug-in section is inserted into the inner cavity of the sleeve, the elastic card buckle is engaged in the card hole; so as to limit the first connecting section and the second connecting section from disengaging from each other in the lateral direction.

[0019] Preferably, the first bracket includes a first body, and the second bracket includes a second body. The first body extends upward toward the second body and then extends horizontally to form a first connecting section that is higher than the first body. The second body extends upward toward the first body and then extends horizontally to form a second connecting section that is higher than the second body. After the first connecting section and the second connecting section are spliced ​​together, an avoidance zone is formed between the seat shell; the avoidance zone can enable the transverse bracket assembly to avoid other components in the seat shell to avoid interference and collision.

[0020] Preferably, the longitudinal width of the avoidance zone is in the range of 10 mm to 20 mm.

[0021] The beneficial effects of the utility model using the above technical solution are:

[0022] Since the transverse bracket is relatively long, it takes a long time to directly insert the transverse bracket into the seat shell through the sliding avoidance groove. Therefore, the utility model replaces the overall transverse bracket with two separate and left-right symmetrical first brackets and second brackets, so that the transverse bracket does not need to completely cross the sliding avoidance grooves on the left and right sides of the seat shell. Instead, the first bracket and the second bracket are respectively inserted into the seat shell from the sliding avoidance grooves on the left and right sides and then spliced ​​together. This not only achieves the purpose of inserting the transverse bracket assembly into the seat shell, but also shortens the insertion time. There is no need to expand the width of the sliding avoidance grooves on both sides of the seat shell, thereby ensuring the strength of the seat shell and improving the assembly efficiency of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the first bracket being inserted into the sliding avoidance groove;

[0024] Figure 2 A schematic diagram of the first bracket and the second bracket being inserted into the seat shell and then assembled;

[0025] Figure 3 This is an enlarged structural diagram of the first connecting section and the second connecting section;

[0026] Figure 4 This is an enlarged view of the structure of the first connecting section and the second connecting section from another angle;

[0027] Figure 5 This is an enlarged view of the structure of the first connecting section and the second connecting section in Example 2;

[0028] Figure 6 A schematic diagram of a transverse bracket passing through a sliding avoidance groove in the background art;

[0029] Figure 7 A schematic diagram of the connection between the installed transverse bracket and the U-shaped frame in the background art;

[0030] The figures are marked as follows: 1-seat shell, 2-lateral bracket, 3-U-shaped frame, 11-sliding avoidance groove, 12-mounting seat, 13-avoidance area, 2a-first bracket, 2b-second bracket, 21-matching section, 22-first bracket, 23-second bracket, 24-positioning groove, 25-positioning part, 26a-overlap hole, 26b-hook, 27-threaded hole, 28-through hole, 29-extension column, 221-card hole, 231-elastic buckle, H-protrusion height. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0033] The present invention has multiple embodiments, and the specific implementation methods are as follows:

[0034] Example 1: Figure 1-4 As shown, this embodiment provides a seat assembly structure that can shorten the installation time of the integral transverse bracket 2 in the seat shell 1 without increasing the width of the sliding avoidance groove 11, thereby improving assembly efficiency, including:

[0035] The seat shell 1 has sliding avoidance grooves 11 on both sides thereof, which are connected to the inside and outside and extend in the front-to-back direction;

[0036] The transverse bracket assembly includes two separate and left-right symmetrical first brackets 2a and second brackets 2b. The first bracket 2a includes a first connecting section 22 facing the second bracket 2b, and the second bracket 2b includes a second connecting section 23 facing the first bracket 2a; the first connecting section 22 and the second connecting section 23 can be inserted into the seat shell 1 from the sliding avoidance grooves 11 on the left and right sides respectively and then spliced ​​with each other to pass the transverse bracket assembly into the seat shell 1; the length of the first bracket 2a and the second bracket 2b is relatively short, so the time spent on insertion is relatively short, which can effectively improve the assembly efficiency of the seat.

[0037] Furthermore, the backrest of the seat in this embodiment is connected to a U-shaped frame 3. In order to facilitate the connection of the transverse bracket assembly and the U-shaped frame 3 by screws, the first bracket 2a has a mating section 21 on the side facing away from the first connecting section 22, and the second bracket 2b also has a mating section 21 on the side facing away from the second connecting section 23. In order to leave enough installation space for the screws and ensure the connection effect between the U-shaped frame 3 and the two mating sections 21, the thickness of the mating section 21 is greater than the thickness of the first connecting section 22 or the second connecting section 23. The thicker mating section 21 is more difficult to install. However, in this embodiment, the first bracket 2a and the second bracket 2b are inserted separately, so there is no need for the mating section 21 to pass through the sliding avoidance groove 11, and the installation difficulty is also lower, which further improves the assembly efficiency of the seat.

[0038] Furthermore, the first connecting section 22 and the second connecting section 23 inserted into the seat shell 1 can be spliced ​​in various ways. For example, in this embodiment, the first connecting section 22 and the second connecting section 23 are spliced ​​together and fixed by screws; specifically, the first connecting section 22 is provided with a threaded hole 27, and the second connecting section 23 is provided with a through hole 28 corresponding to the position of the threaded hole 27. The screw passes through the through hole 28 and is screwed into the threaded hole 27, so that the first connecting section 22 and the second connecting section 23 remain relatively fixed.

[0039] Furthermore, in order to quickly align the positions of the through hole 28 and the threaded hole 27 when the first connecting section 22 and the second connecting section 23 are spliced, a positioning groove 24 is provided on the first connecting section 22. The number and shape of the positioning grooves 24 are not limited. For example, the number of positioning grooves 24 in this embodiment is two, and the shape is strip-shaped; the second connecting section 23 is provided with a positioning portion 25 matching the positioning groove 24, the threaded hole 27 is provided at the bottom of the positioning groove 24, and the through hole 28 is provided on the positioning portion 25. The positioning portion 25 is inserted into the positioning groove 24 so that the through hole 28 is aligned with the threaded hole 27; the difficulty of installing the screws is reduced and the assembly efficiency is improved.

[0040] Furthermore, after the positioning portion 25 is inserted into the positioning groove 24, since the screws have not yet been inserted, the first connecting section 22 and the second connecting section 23 are easily disengaged from each other in the horizontal direction, causing the through hole 28 and the threaded hole 27 to be misaligned. Therefore, in this embodiment, a buckle 26b is provided at the bottom end of the positioning portion 25, the upper end of the positioning groove 24 is open outward, and the bottom of the positioning groove 24 is provided with a overlapping hole 26a that matches the buckle 26b. When the positioning portion 25 is inserted into the positioning groove 24, the buckle 26b is inserted into the overlapping hole 26a along the longitudinal direction; before inserting the screws, the first connecting section 22 and the second connecting section 23 are kept relatively fixed in the horizontal direction to facilitate the installation of the screws.

[0041] Furthermore, in order to ensure a stable connection between the first bracket 2a and the second bracket 2b, an extension column 29 is provided at the bottom of the first connecting section 22, and the threaded hole 27 passes through the extension column 29; the extension column 29 can increase the extension length of the threaded hole 27 to increase the depth of the threaded hole 27, making it easier to insert longer screws, thereby ensuring that the connection effect between the first connecting section 22 and the second connecting section 23 is more stable.

[0042] Furthermore, a base (not shown) is provided at the bottom of the seat shell 1. In order to facilitate adjustment of the sitting position, the seat shell 1 can slide back and forth on the base, and a plurality of card slots (not shown) are provided in the base. A control component (not shown) is provided in the seat shell 1. The control component includes a sliding pin provided on a mounting seat 12. The sliding pin can move on the mounting seat 12 and be inserted into or out of the card slot to control the sliding or unlocking of the seat shell 1; wherein the mounting seat 12 is located at the position of the first connecting section 22 and the second connecting section 23, and protrudes upward. The protruding mounting seat 12 easily touches the first connecting section 22 and the second connecting section 23, so the height of the first connecting section 22 and the second connecting section 23 is relatively high. Specifically, the first bracket 2a includes a first body, a second bracket 2 b includes a second body, the first body extends upward toward the second body and then extends horizontally to form a first connecting section 22 that is higher than the first body, the second body extends upward toward the first body and then extends horizontally to form a second connecting section 23 that is higher than the second body, and an avoidance zone 13 is formed between the first connecting section 22 and the second connecting section 23 after splicing, and the seat shell 1; the avoidance zone 13 can enable the transverse bracket assembly to avoid the mounting seat 12 in the seat shell 1 to avoid interference and collision; in order to keep a reasonable distance between the spliced ​​first connecting section 22 and the second connecting section 23 and the seat shell, the longitudinal width of the avoidance zone 13 is 10mm-20mm, and the longitudinal width of the avoidance zone 13 is equivalent to the protruding height H of the first connecting section 22 above the first body.

[0043] Example 2: Figure 5 As shown, the difference between this embodiment and the above embodiment is that in this embodiment, the first connecting segment 22 and the second connecting segment 23 are spliced ​​with each other by plugging. Specifically, the first connecting segment 22 has a sleeve, and the second connecting segment 23 has a plug-in segment that matches the inner cavity of the sleeve. The plug-in segment is inserted into the inner cavity of the sleeve, so that the first connecting segment 22 and the second connecting segment 23 are spliced ​​with each other.

[0044] Furthermore, in order to ensure that the first connecting section 22 and the second connecting section 23 maintain a stable connection after being plugged into each other, a card hole 221 communicating with the outside world is provided on the sleeve, and an elastic card buckle 231 is provided on the plug-in section. When the plug-in section is inserted into the inner cavity of the sleeve, the elastic card buckle 231 is clamped in the card hole 221; so as to limit the first connecting section 22 and the second connecting section 23 from being disengaged from each other in the lateral direction; specifically, the upper end of the card hole 221 is open to the outside, and when the connecting section is inserted into the sleeve, the elastic card buckle 231 first penetrates the sleeve and undergoes elastic deformation. When the elastic card buckle 231 moves to the card hole 221, the elastic card buckle 231 is reset and clamped into the card hole 221, thereby limiting the separation of the first connecting section 22 and the second connecting section 23 after plugging.

[0045] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the inventive purpose of the present invention, designs a structure and embodiment similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A seat assembly structure, characterized in that: include: A seat shell (1), wherein the left and right sides of the seat shell (1) are provided with sliding avoidance grooves (11) communicating with the inside and outside and extending in the front-to-back direction; A transverse bracket assembly comprises two split and left-right symmetrical first brackets (2a) and second brackets (2b), wherein the first bracket (2a) comprises a first connecting section (22) facing the second bracket (2b), and the second bracket (2b) comprises a second connecting section (23) facing the first bracket (2a); the first connecting section (22) and the second connecting section (23) can be respectively inserted into the seat shell (1) through the sliding avoidance grooves (11) on the left and right sides and then spliced ​​with each other, so that the transverse bracket assembly is inserted into the seat shell (1).

2. A seat assembly structure according to claim 1, characterized in that: The first connecting section (22) and the second connecting section (23) are spliced ​​together and fixed with screws.

3. The seat assembly structure according to claim 2, characterized in that: The first connecting section (22) is provided with a threaded hole (27), and the second connecting section (23) is provided with a through hole (28) corresponding to the position of the threaded hole (27). A screw passes through the through hole (28) and is screwed into the threaded hole (27), so that the first connecting section (22) and the second connecting section (23) remain relatively fixed.

4. The seat assembly structure according to claim 3, characterized in that: The first connecting section (22) is provided with a positioning groove (24), the second connecting section (23) is provided with a positioning portion (25) matching the positioning groove (24), the threaded hole (27) is provided at the bottom of the positioning groove (24), the through hole (28) is provided on the positioning portion (25), and the positioning portion (25) is inserted into the positioning groove (24) so ​​that the through hole (28) and the threaded hole (27) are aligned.

5. The seat assembly structure according to claim 4, characterized in that: A buckle (26b) is provided at the bottom end of the positioning portion (25), the upper end of the positioning groove (24) is open outward, and a lap hole (26a) matching the buckle (26b) is provided at the bottom of the positioning groove (24). When the positioning portion (25) is inserted into the positioning groove (24), the buckle (26b) is inserted into the lap hole (26a) along the longitudinal direction.

6. The seat assembly structure according to claim 4, characterized in that: An extension column (29) is provided at the bottom of the first connecting section (22), and the threaded hole (27) passes through the extension column (29).

7. The seat assembly structure according to claim 1, characterized in that: The first connecting section (22) and the second connecting section (23) are spliced ​​with each other by plugging.

8. The seat assembly structure according to claim 7, characterized in that: The first connecting section (22) is provided with a sleeve, and the second connecting section (23) is provided with a plug-in section matching the inner cavity of the sleeve. The plug-in section is inserted into the inner cavity of the sleeve, so that the first connecting section (22) and the second connecting section (23) are spliced ​​with each other.

9. The seat assembly structure according to claim 8, characterized in that: The sleeve is provided with a clamping hole (221) communicating with the outside world, and the plug-in section is provided with an elastic clamping buckle (231). When the plug-in section is inserted into the inner cavity of the sleeve, the elastic clamping buckle (231) is clamped in the clamping hole (221).

10. The seat assembly structure according to claim 1, characterized in that: The first bracket (2a) includes a first body, and the second bracket (2b) includes a second body. The first body extends upward toward the second body and then extends horizontally to form a first connecting section (22) higher than the first body. The second body extends upward toward the first body and then extends horizontally to form a second connecting section (23) higher than the second body. After the first connecting section (22) and the second connecting section (23) are spliced ​​together, an avoidance zone (13) is formed between the seat shell (1).

11. The seat assembly structure according to claim 10, characterized in that: The longitudinal width of the avoidance zone (13) ranges from 10 mm to 20 mm.

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