CN215650107U

CN215650107U - Seat back adjusting structure

Info

Publication number: CN215650107U
Application number: CN202121855749.6U
Authority: CN
Inventors: 刘奇; 张昆
Original assignee: Shenzhen Liqiang Industrial Chair Technology Co ltd
Current assignee: Shenzhen Liqiang Industrial Chair Technology Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-01-28
Anticipated expiration: 2031-08-09

Abstract

The application relates to a seat backrest adjusting structure, which comprises a fixed seat, a mounting seat and a supporting rod; the mount pad is installed the side of fixing base, the fixing base deviates from one side of mount pad is used for installing the backrest, be equipped with the rotation groove on the mount pad, the one end setting of bracing piece rotate the inslot and with the mount pad is articulated, the one end that the mount pad was kept away from to the bracing piece just is used for linking to each other with the seat for the link. This application has the effect that improves the comfort when people back to the seat back.

Description

Seat back adjusting structure

Technical Field

The application relates to the field of seats, in particular to a seat backrest adjusting structure.

Background

Most of the seat backrests on the market at present are fixed. Fixed seat backs are commonly used in work environments where a person is required to sit for a long time, supporting the waist and back of the person, but because everyone is used to a different sitting posture, the need for the position of the back of the seat varies. When the waist and the back of a person cannot be completely supported by the backrest of the seat for a long time, the person feels tired and the health of the person is affected.

In view of the above-mentioned related art, the inventors thought that there is a drawback that the fixed backrest of the seat cannot be adapted to different sitting postures of the user, resulting in fatigue of the user.

SUMMERY OF THE UTILITY MODEL

In order to solve the defect that the fixed backrest of the seat cannot be adapted to different sitting postures of a user to cause fatigue of the user, the application provides a seat backrest adjusting structure.

The application provides a structure is adjusted to seat back adopts following technical scheme: a seat backrest adjusting structure comprises a fixed seat, a mounting seat and a supporting rod; the mount pad is installed the side of fixing base, the fixing base deviates from one side of mount pad is used for installing the backrest, be equipped with the rotation groove on the mount pad, the one end setting of bracing piece rotate the inslot and with the mount pad is articulated, the one end that the mount pad was kept away from to the bracing piece just is used for linking to each other with the seat for the link.

Through adopting above-mentioned technical scheme, form a rotation connection relation between fixing base and the bracing piece, and then make backrest can rotate for the bracing piece and adjust. When a user leans back on the seat backrest, the backrest can be rotationally adjusted according to the sitting posture of the user to adapt to the current sitting posture of the user, so that the seat backrest is fully attached to the waist or the back of the user, the contact area between the seat backrest and the waist or the back of the user is increased, and the comfort when the user leans back on the seat backrest is improved.

Preferably, an elastic part is arranged between the part of the support rod away from the connecting end relative to the hinge point of the support rod and the mounting seat and the fixed seat.

By adopting the technical scheme, when a user does not rely on the seat back any more, the seat back can be restored to the original state under the driving force of the elastic piece; when the human body leans on the backrest of the seat next time, the backrest plays a role in buffering the back of the user, and the comfort of the user is further improved.

Preferably, be provided with on the fixing base and be used for the restriction the first spacing portion that the elastic component slided, the bracing piece is close to one side of fixing base is provided with and is used for the restriction the spacing portion of second that the elastic component slided.

Through adopting above-mentioned technical scheme, restrict the tip of elastic component respectively on fixing base and bracing piece, prevent in bracing piece and the relative rotation process of fixing base many times for a long time, the elastic component deviates from the normal position and leads to the condition of taking place the lateral buckling even because of the atress is uneven.

Preferably, an avoiding notch is formed in the mounting seat, and the rotating track of the supporting rod passes through the avoiding notch.

Through adopting above-mentioned technical scheme, increased the bracing piece and rotated the scope of adjusting.

Preferably, the seat back adjusting structure further comprises a cover body, the cover body is sleeved on the mounting seat, an avoiding opening is formed in the cover body, and the supporting rod rotates to pass through the track to avoid the opening and move in the avoiding opening.

Through adopting above-mentioned technical scheme, use the lid to protect inside mount pad and elastic component, prevent that the user from touching mechanical structure by mistake, prolong the live time of adjusting the structure.

Preferably, the cover body comprises a cover body top wall and a cover body side wall, the cover body side wall surrounds the cover body top wall and is connected to the edge of the cover body top wall, a threaded hole is formed in the mounting seat, an opening corresponding to the threaded hole is formed in the cover body top wall, a bolt is arranged in the opening, and the cover body and the mounting seat are bolted through the bolt.

Through adopting above-mentioned technical scheme, can carry out the dismouting to lid and mount pad very conveniently.

Preferably, a plurality of supporting pieces are further arranged in the cover body, the supporting pieces are fixedly connected with the top wall of the cover body and the side wall of the cover body, and the supporting pieces are used for being abutted to the mounting seat.

Through adopting above-mentioned technical scheme, after the lid is fixed on the mount pad for can support each other between lid roof and the lid lateral wall, increase the stability of lid when receiving seat back not equidirectional power.

Preferably, a plurality of limiting lugs are arranged on the fixing seat, and the limiting lugs are arranged on the edge profile of the side wall of the cover body and are in excessive fit or interference fit with the side wall of the cover body.

Through adopting above-mentioned technical scheme for the lid can not take place relative slip on the fixing base, can guarantee that the accurate lid between lid and the fixing base closes, has avoided lid and fixing base position to not correspond, has improved overall structure's stability.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the seat back can be rotationally adjusted by depending on the sitting posture of a user so as to adapt to the sitting postures of different users, increase the contact area between the seat back and the waist or the back of the user and improve the comfort when the user backs on the seat back;

2. when the user leans on the backrest of the seat, the backrest has a buffer function on the back of the user, and the comfort of the user is further improved.

Drawings

Fig. 1 is an overall schematic view of a seat back adjustment structure in an embodiment of the present application.

Fig. 2 is a schematic structural view of a seat back adjusting structure according to an embodiment of the present application after a cover is hidden.

Fig. 3 is a schematic structural diagram of a fixing base in the embodiment of the present application.

Fig. 4 is a schematic structural diagram of a mounting seat in the embodiment of the present application.

Figure 5 is a side view of a support pole in an embodiment of the present application.

Fig. 6 is a schematic structural diagram of the cover body in the present embodiment.

Description of reference numerals: 1. a fixed seat; 11. a fixing hole; 12. a first limiting part; 13. an annular flange; 14. a limiting bump; 2. a mounting seat; 21. a rotating groove; 22. mounting a plate; 221. mounting holes; 23. a baffle plate; 231. a threaded hole; 232. avoiding the notch; 3. a support bar; 31. a hinged lever; 32. a second limiting part; 4. an elastic member; 41. a spring; 5. a cover body; 51. a top wall of the cover body; 511. opening a hole; 52. a cover body side wall; 53. avoiding the opening; 54. a support sheet.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses seat back adjusts structure. Referring to fig. 1 and 2, the seat back adjusting structure includes a fixing base 1, a mounting base 2, a support rod 3, an elastic member 4, and a cover 5. Fixing base 1 is used for installing the backrest, and one side of fixing base 1 is used for installing the backrest, and mount pad 2 is installed to the opposite side.

Referring to fig. 3, the fixing seat 1 is symmetrically provided with fixing holes 11 for mounting the fixing seat 1 on the seat back.

Referring to fig. 2 and 4, mount pad 2 is used for installing bracing piece 3 on fixing base 1, and mount pad 2 is "nearly" style of calligraphy, and mount pad 2 includes mounting panel 22 and baffle 23, and two mounting panels 22 are the symmetry setting. The mounting plates 22 are L-shaped, the baffle plates 23 are fixed on the tops of the two mounting plates 22, the bottoms of the mounting plates 22 are fixedly mounted on the fixing seats 1, and a rotating groove 21 is formed between the two mounting plates 22 and the baffle plates 23 and used for providing a rotatable space for the supporting rod 3. In this embodiment, the two mounting plates 22 are provided with mounting holes 221, the mounting holes 221 and the fixing holes 11 on the fixing base 1 are located on the same axis, and fixing bolts are inserted into the mounting holes 221 and the fixing holes 11, so that the mounting base 2 and the fixing base 1 are mounted and fixed on the seat back together. In other embodiments, the mounting seat 2 may be welded to the fixing plate 1, or a plurality of fasteners may be disposed on the fixing plate 1 at intervals to fix the mounting seat 2 on the fixing seat 1 in a clamping manner.

Referring to fig. 2 and 5, the support bar 3 is used to provide a fixed support base for the seat back. One end of the support rod 3 is arranged in the rotating groove 21, the other end of the support rod is used for being connected and fixed with a seat, and the length of the support rod 3 outside the rotating groove 21 is longer than that inside the rotating groove 21. The cross section of the support rod 3 is rectangular, and the inside of the support rod is hollow, so that the weight of the seat can be reduced. The support rod 3 in the rotating groove 21 is provided with a hinge rod 31 in a penetrating manner, two ends of the hinge rod 31 respectively face and penetrate through the mounting plates 22, and the mounting plates 22 on two sides provide a mounting base for the support rod 3, so that the support rod 3 can rotate relative to the mounting base 2.

Referring to fig. 2 and 3, the elastic element 4 is disposed between the fixing plate 1 and the supporting rod 3, and the fixing base 1 is provided with a first limiting portion 12; referring to fig. 2 and 5, a second position-limiting portion 32 is disposed on a side of the hinge point of the support rod 3 relative to the mounting base 2 and away from the connecting end. One end of the elastic element 4 is matched with the first limiting part 12 to limit the sliding of the elastic element 4 on the fixing plate 1, and the other end of the elastic element 4 is matched with the second limiting part 32 to limit the sliding of the elastic element 4 on the supporting rod 3. In this embodiment, the elastic member 4 is a spring 41, and the first position-limiting portion 12 and the second position-limiting portion 32 are both protruding blocks, which may be cylindrical or rectangular. The two ends of the spring 41 are sleeved on the protruding blocks, and the inner side wall of the spring 41 is abutted to the protruding blocks, so that the sliding of the spring 41 on the fixed seat 1 or the support 3 is limited. In other embodiments, the elastic element 4 may be a U-shaped elastic sheet, and the first position-limiting portion 12 and the second position-limiting portion 32 may be configured as a groove matching the U-shaped elastic sheet, and are clamped on an inner wall of the groove to achieve the position-limiting effect.

Referring to fig. 6, the cover 5 is used to cover the fixing base 1, the mounting base 2, the support rod 3 and the elastic member 4, so as to protect the internal mechanical structure. The cover 5 is divided into a cover top wall 51, a cover side wall 52, and a support piece 54. The cover side wall 52 surrounds the cover top wall 51, and the cover side wall 52 is connected to the edge of the cover top wall 51. An avoiding opening 53 is formed at the joint of the cover body top wall 51 and the cover body side wall 52, and the cover body 5 is sleeved on the support rod 3 through the avoiding opening 53 and can slide on the support rod 3. Seted up trompil 511 on the lid roof 51, be provided with fastening bolt in the trompil 511, fastening bolt and baffle 23 threaded connection fix lid 5 and mount pad 2, further realize that the installation of lid 5 and fixing base 1 is fixed.

Referring to fig. 3 and 6, the fixing base 1 is provided with an annular flange 13 along the circumferential direction, and the annular flange 13 can be overlapped with the edge of the cover body side wall 52. The plurality of limiting lugs 14 are arranged on the inner side of the annular flange 13, the height of each limiting lug 14 is higher than that of the annular flange 13, and when the cover body 5 is installed, the limiting lugs 14 can be in interference fit with the inner side wall of the side wall 52 of the cover body, so that the position accuracy of the cover body 5 is ensured. In this embodiment, four limit protrusions 14 are disposed inside the annular flange 13.

Inside lid 5, a plurality of backing sheets 54 have been set up in parallel, and the equal fixed connection of each backing sheet 54 is on lid roof 51 and lid lateral wall 52, avoids lid roof 51 or lid lateral wall 52 to take place deformation because of the atress, reaches the effect of supporting lid roof 51 and lid lateral wall 52, further strengthens the steadiness of lid 5. In this embodiment, four support pieces 54 are provided inside the cover 5.

The implementation principle of the embodiment of the application is as follows: when a user leans against the backrest of the seat, the installation seat 2 fixed on the backrest of the seat and the supporting rod 3 rotate relatively, and the spring 41 in the seat is compressed, so that the backrest of the seat can be better attached to the back of the human body, and the area of the backrest for supporting the back of the human body is increased; when the back of the user leaves the seat back, the mounting seat 2 is acted by the spring 41, so that the seat back is restored to the original state.

The above embodiments are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A structure is adjusted to seat back which characterized in that: comprises a fixed seat (1), a mounting seat (2) and a support rod (3); install mount pad (2) the side of fixing base (1), fixing base (1) deviates from one side of mount pad (2) is used for installing the backrest, be equipped with on mount pad (2) and rotate groove (21), the one end setting of bracing piece (3) rotate in groove (21) and with mount pad (2) are articulated, the one end that mount pad (2) were kept away from in bracing piece (3) is for the link and be used for linking to each other with the seat.

2. The seat back adjustment structure according to claim 1, wherein: an elastic part (4) is arranged between the part of the support rod (3) far away from the connecting end relative to the hinge point of the support rod and the mounting seat (2) and the fixing seat (1).

3. The seat back adjustment structure according to claim 1, wherein: be provided with on fixing base (1) and be used for the restriction first spacing portion (12) that elastic component (4) slided, bracing piece (3) are close to one side of fixing base (1) is provided with and is used for the restriction spacing portion of second (32) that elastic component (4) slided.

4. The seat back adjustment structure according to claim 1, wherein: an avoiding notch (232) is formed in the mounting seat (2), and the rotating track of the supporting rod (3) passes through the avoiding notch (232).

5. The seat back adjustment structure according to claim 1, wherein: still include lid (5), lid (5) cover is established on mount pad (2), be provided with on lid (5) and dodge opening (53), bracing piece (3) pass dodge opening (53) and dodge opening (53) internalization.

6. The seat back adjustment structure according to claim 5, wherein: the cover body (5) comprises a cover body top wall (51) and a cover body side wall (52), the cover body side wall (52) surrounds the cover body top wall (51) and is connected to the edge of the cover body top wall (51), a threaded hole (231) is formed in the mounting seat (2), an opening hole (511) corresponding to the threaded hole (231) is formed in the cover body top wall (51), a bolt is arranged in the opening hole (511), and the cover body (5) and the mounting seat (2) are bolted through the bolt.

7. The seat back adjustment structure according to claim 5, wherein: the cover body (5) is further internally provided with a plurality of supporting pieces (54), the supporting pieces (54) are fixedly connected with the cover body top wall (51) and the cover body side wall (52), and the supporting pieces (54) are used for being abutted to the mounting base (2).

8. The seat back adjustment structure according to claim 5, wherein: the fixing seat (1) is provided with a plurality of limiting lugs (14), and the limiting lugs (14) are arranged on the edge profile of the side wall (52) of the cover body and are in excessive fit or interference fit with the side wall (52) of the cover body.