CN215533027U

CN215533027U - 3D waist leans on mechanism

Info

Publication number: CN215533027U
Application number: CN202121449967.XU
Authority: CN
Inventors: 周亮
Original assignee: Zhejiang Hengyu Plastic Technology Co ltd
Current assignee: Zhejiang Hengyu Intelligent Furniture Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-18
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a 3D waist support mechanism, which comprises a fixed part connected with a chair back and a flexible part connected with a waist support, wherein a clamping groove is formed in one side, facing the flexible part, of the fixed part; the utility model has high comfort level, convenient installation and 3D rotation and conforms to human engineering.

Description

3D waist leans on mechanism

Technical Field

The utility model relates to a 3D lumbar support mechanism.

Background

The conventional chairs, office chairs and the chairs of automobiles are not provided with waist supports, so that people sitting on the chairs for a long time can have symptoms of soreness of waist, backache and the like. The waist rest is arranged on the chair to improve the overall comfort level, but the existing waist rest is only matched with the human body through the waist rest material, and the comfort level of the structure is still lower, so that the overall comfort level can be improved urgently, and the waist rest mechanism more conforming to the ergonomics is needed.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a 3D lumbar support mechanism.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a 3D waist leans on mechanism, wherein, includes the mounting of being connected with the back of the chair and leans on the flexible piece of being connected with the waist, is equipped with the draw-in groove on the mounting towards flexible piece one side, and the flexible piece is equipped with the connecting portion with the draw-in groove adaptation towards mounting one side, is equipped with two at least flexible portions on the opposite side of flexible piece, and flexible portion leans on with the waist to be connected.

Through mounting and flexible piece cooperation, the connection relation between the back of the chair and the waist is leaned on has been realized, when the human body sits on the chair, human waist and waist lean on the counterbalance, deformation can take place for flexible portion, thereby drive the waist and lean on the motion, when the human body leans on backward, flexible portion receives the extrusion, compression deformation, disappear when the extrusion force, flexible portion can reset, return normal condition, and simultaneously, because the setting of flexible portion, human position of sitting is different, human waist motion, make flexible portion can move towards left side, right side, on, four position down, thereby realized that the waist leans on 3D pivoted effect, accord with ergonomic, thereby improve human comfort level. In addition, the flexible part is mainly connected with the central position of the waist rest, when the upper end of the waist rest is subjected to extrusion force, the lower end of the waist rest can move in the opposite direction, so that the waist rest is always attached to the waist of a human body, and the human body can have a comfortable effect no matter what sitting posture is. The flexible piece and the fixing piece are matched in a clamping groove mode, so that the flexible piece and the fixing piece are more convenient to install and fix, and the overall installation efficiency is improved.

The clamping groove is provided with a clamping part, and the clamping part is located on the motion track of the connecting part.

The setting of clamping part, when connecting portion stretched into to the draw-in groove in, clamping part takes place deformation, and after connecting portion wholly got into to the draw-in groove internal fixation, clamping part reset, and clamping part at this moment has formed the spacing effect of connecting portion for connecting portion are difficult for following the roll-off in the draw-in groove.

Wherein, all be equipped with the shielding part on the both ends of draw-in groove, the shielding part extends towards the draw-in groove center.

Through the setting of occlusion part for the draw-in groove forms T style of calligraphy structure, has formed certain spacing fixed effect, and simultaneously, it is more convenient to make connecting portion and draw-in groove cooperate.

Wherein, the central position of the clamping groove is provided with a limiting rib which is propped against the bottom surface of the connecting part.

The arrangement of the limiting ribs is adopted, the overall fixing effect is further improved, and the connecting portion and the clamping groove are firmly fixed.

Wherein, be equipped with the reinforcement in the connecting portion, the reinforcement is embedded with in the connecting portion.

The setting of reinforcement for the holistic intensity of flexible piece improves, makes connecting portion possess certain intensity, makes better entering into to the draw-in groove of connecting portion.

Wherein, the reinforcement and the flexible piece are integrally formed by injection molding.

Adopt the integrative injection moulding of reinforcement and flexible piece for the whole embedding of reinforcement is to connecting portion in, improves the intensity of connecting portion, simultaneously, adopts this kind of structure, and processing is more convenient. The reinforcing member is preferably made of iron or other metal.

Wherein, the reinforcing piece is provided with a plurality of through holes.

The through holes are formed, so that the colloid penetrates through the through holes in the injection molding process, and the connection strength of the reinforcing part and the flexible part is enhanced.

Wherein, be equipped with first fixed orifices on the flexible member, be equipped with the second fixed orifices on the mounting, first fixed orifices and second fixed orifices are for setting up with the axle center.

The setting of first fixed orifices and second fixed orifices can pass first fixed orifices and second fixed orifices through the bolt, improves holistic fixed strength.

Wherein, be equipped with the gasket in the flexible portion, the gasket sets up for coaxial with first fixed orifices.

Through the setting of gasket, further make the connection between bolt and the gasket more stable.

Wherein, the fixed part is provided with a positioning wall.

The arrangement of the positioning wall enables the fixing between the fixing piece and the chair back to be more convenient, and a positioning and fixing effect is achieved.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is an exploded view of example 1 of the present invention;

FIG. 3 is a sectional view of embodiment 1 of the present invention;

FIG. 4 is a cross-sectional view from another angle of embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a fixing member in embodiment 1 of the present invention.

Detailed Description

Example 1:

referring to fig. 1-5, a 3D lumbar support mechanism includes a stationary member 1 and a flexible member 2.

Be equipped with location wall 11 on one side of mounting 1, the quantity of location wall 11 is two, and two location walls 11 are located the upper and lower both ends of mounting 1, form guide tracked structure, are connected with the back of the chair through location wall 11, realize a fixed effect of location. The fixing member 1 is provided with two second fixing holes 12, the second fixing holes 12 are formed by penetrating the whole fixing member 1, the number of the second fixing holes 12 is two, and the two second fixing holes 12 are symmetrically arranged. Further, here, in order to improve the overall fixing effect, a boss 13 is provided on the side of the fixing member 1 facing the seat back, and the second fixing hole 12 is located on the boss 13.

The other side of the fixing member 1 is provided with a clamping groove 3, the clamping groove 3 is provided with two openings, one opening faces the flexible member 2, and the other opening faces upward or downward.

All be equipped with shielding part 31 on the both ends of draw-in groove 3, shielding part 31 extends towards draw-in groove 3 center, so make draw-in groove 3 form T style of calligraphy structure for connecting portion are more convenient with draw-in groove 3's cooperation. Be equipped with clamping part 32 and spacing muscle 33 on the intermediate position of draw-in groove 3, clamping part 32 and spacing muscle 33 are for corresponding the setting, and in this embodiment, spacing muscle 33 is located the opening towards flexible part 2, and the length of spacing muscle 33 is less than the length of draw-in groove 3, and spacing muscle 33 can not stretch out outside draw-in groove 3 promptly. In addition, the quantity of spacing muscle 33 is two, and two spacing muscle 33 are the symmetry setting, and it is when connecting portion stretch into to draw-in groove 3 in, spacing muscle 33 offsets with the bottom surface of connecting portion and forms fixed effect. Buckling part 32 is located draw-in groove 3, and is located and is close to the opening that sets up downwards, and buckling part 32 is the elasticity setting, and buckling part 32 is used for cooperating with connecting portion, realizes the spacing fixed effect of connecting portion.

Besides, it should be noted that the whole fixing member 1 is integrally formed by injection molding, and in this embodiment, the fixing member 1 is preferably made of reinforced nylon, and such material is adopted, so that the strength of the whole fixing member 1 is improved, and the fixing stability between the fixing member 1 and the chair back is ensured.

Be equipped with connecting portion 21 on flexible piece 2 one side, connecting portion 21 mainly used is connected the cooperation with draw-in groove 3, realizes the fixed effect of being connected between flexible piece 2 and the mounting 1. Connecting portion 21 slides to in the draw-in groove 3 along the opening that sets up downwards of draw-in groove 3, then spacing muscle 33 offsets with the bottom surface of connecting portion 21, and buckling part 32 is located the reverse movement orbit of connecting portion 21 to realized being connected between flexible part 2 and the mounting 1 and fixed. The setting of this department's buckle portion 32, when connecting portion 21 stretched into to draw-in groove 3 in, buckle portion 32 took place to be deformed, and after connecting portion 21 wholly got into to draw-in groove 3 internal fixation, buckle portion 32 reset, and buckle portion 32 this moment has formed the spacing effect of connecting portion 21 for connecting portion 21 is difficult for following the roll-off in draw-in groove 3.

Here, in order to improve the strength of the connecting portion 21, in this embodiment, the reinforcing member 4 is further embedded in the connecting portion 21, the reinforcing member 4 is an iron member or another metal member with a large hardness, the reinforcing member 4 is integrally formed with the flexible member 2 when injection molding, so that the reinforcing member 4 is embedded into the connecting portion 21, the reinforcing member 4 is further provided with a plurality of through holes 41 and a third fixing hole 42, the through holes 41 are adopted, so that in the injection molding process, the colloid can pass through the through holes 41, after cooling, the colloid is firmly fixed with the through holes 41, and the third fixing hole 42 is coaxially arranged with the first fixing hole 22 and the second fixing hole 12, so that the bolt passes through the first fixing hole 22, the second fixing hole 12 and the third fixing hole 42, and the flexible member 2 is firmly fixed with the fixing member 1. Besides, a gasket is arranged in the flexible member 2, the gasket is also fixed in the flexible member 2 by injection molding, and the gasket 5, the first fixing hole 22, the second fixing hole 12 and the third fixing hole 42 are all coaxially arranged.

Be equipped with two at least flexible portions 23 on the opposite side of flexible 2, flexible portion 23 specifically is used for being connected with the waist by leaning on, the quantity of flexible portion 23 is two in this embodiment, the structure of two flexible portions 23 is unanimous here, flexible portion 23 specifically is the setting of bench type, and flexible portion 23 is flexible material, flexible portion 23 is receiving the extrusion and can takes place deformation promptly, but when the extrusion force disappears, flexible portion 23 can resume initial condition, in this embodiment, flexible 2 mainly forms through the integrated into one piece that moulds plastics, the material of flexible 2 here is the PU material, form flexible portion 23 promptly.

Further, here, the gasket 5 is specifically located in the flexible portion 23, and two first fixing holes 22 are provided on the flexible member 2, the two first fixing holes 22 both penetrate through the connecting portion 21 and the flexible portion 23, where the first fixing holes 22 are stepped holes.

In addition, it should be noted that the flexible portion 23 is mainly connected to the central position of the lumbar support, that is, the rest positions of the lumbar support are in a suspended state, and a gap also exists between the lumbar support and a fixed object on the chair back, so that the whole lumbar support deforms backwards when being squeezed, and similarly, the whole lumbar support moves up and down, left and right integrally, and also deforms, and when the squeezing force disappears, the lumbar support returns to the initial state; the upper end of the waist rest is squeezed, the lower end of the waist rest can move in the opposite direction and is further attached to the waist of a human body, and the other single-side squeezing is carried out in the same way, so that the corresponding side moves in the opposite direction, the waist rest can be matched with the waist of the human body, and the human engineering is met.

Through mounting 1 and the cooperation of flexible piece 2, realized the back of the chair and the waist and leaned on the relation of being connected between, when the human body sits on the chair, human waist leans on with the waist and offsets, deformation can take place for flexible portion 23, thereby drive the waist and lean on the motion, lean on when the human body leans on backward, flexible portion 23 receives the extrusion, compression deformation, disappear as the extrusion force, flexible portion 23 can reset, return normal condition, and simultaneously, because the setting of flexible portion 23, human position of sitting is different, flexible portion 23 can move towards left side, right side, on, four lower positions, thereby holistic 3D pivoted effect has been realized, accord with ergonomic, thereby improve human comfort level. In addition, the flexible portion 23 is mainly connected with the central position of the waist rest, when the upper end of the waist rest is subjected to extrusion force, the lower end of the waist rest can move in the opposite direction, so that the waist rest is always attached to the waist of a human body, and the human body can have a comfortable effect no matter what sitting posture. The flexible part 2 and the fixing part 1 are matched in a clamping groove 3 mode, so that the flexible part and the fixing part are more convenient to install and fix, and the overall installation efficiency is improved.

Claims

1. The utility model provides a 3D lumbar support mechanism which characterized in that: including the mounting of being connected with the back of the chair and lean on the flexible piece of being connected with the waist, the mounting is equipped with the draw-in groove towards flexible piece one side, the flexible piece be equipped with towards mounting one side with the connecting portion of draw-in groove adaptation, be equipped with two at least flexible portions on the opposite side of flexible piece, flexible portion lean on with the waist to be connected.

2. A 3D lumbar support mechanism as claimed in claim 1, wherein: the clamping groove is provided with a clamping part, and the clamping part is positioned on the motion track of the connecting part.

3. A 3D lumbar support mechanism as claimed in claim 2, wherein: all be equipped with the shielding part on the both ends of draw-in groove, the shielding part extends towards the draw-in groove center.

4. A 3D lumbar support mechanism as claimed in claim 2, wherein: the clamping groove center position is provided with a limiting rib which is abutted against the bottom surface of the connecting part.

5. A 3D lumbar support mechanism as claimed in claim 1, wherein: be equipped with the reinforcement in the connecting portion, the reinforcement is embedded with in the connecting portion.

6. A3D lumbar support mechanism as claimed in claim 5, characterized in that: the reinforcing part and the flexible part are integrally injection-molded.

7. A3D lumbar support mechanism as claimed in claim 5 or 6, characterized in that: the reinforcing piece is provided with a plurality of through holes.

8. A 3D lumbar support mechanism as claimed in claim 1, wherein: be equipped with first fixed orifices on the flexible member, be equipped with the second fixed orifices on the mounting, first fixed orifices and second fixed orifices are for setting up with the axle center.

9. A 3D lumbar support mechanism as claimed in claim 8, wherein: be equipped with the gasket in the flexible portion, the gasket sets up for coaxial with first fixed orifices.

10. A 3D lumbar support mechanism as claimed in claim 1, wherein: the fixing piece is provided with a positioning wall.