阅读说明：本技术 一种自动调节腰靠及椅背 (A kind of automatic adjustment Lumbar and the chair back ) 是由 周新 田清 于 2019-10-08 设计创作，主要内容包括：本发明涉及座椅零件设计领域,尤其涉及一种自动调节腰靠及椅背。包括：腰部靠板、滑槽；所述腰部靠板上设置有连接板；所述滑槽上设置有滑块,所述滑块可滑动的与所述滑槽连接,所述滑块与所述滑槽的内壁之间设置有弹簧；所述连接板上设置有转动部,所述滑块上设置有转动轴,所述转动部通过所述转动轴可转动的与所述滑块连接。现有技术中,腰靠往往为固定设置,当人体采用不同的坐姿或转换坐姿时,腰靠不能有效支撑人体腰部造成人体不适。相较于现有技术,本发明通过转动部的转动以及滑块的滑动,使得腰部靠板能够自动调节,当人体采用不同坐姿或转换坐姿时,腰部靠板仍然能够有效支撑人体腰部。(The present invention relates to seat parts design field more particularly to a kind of automatic adjustment Lumbar and the chair back.It include: waist backup plate, sliding slot；Connecting plate is provided on the waist backup plate；Sliding block is provided on the sliding slot, the sliding block is slidably connect with the sliding slot, is provided with spring between the sliding block and the inner wall of the sliding slot；It is provided with rotation section on the connecting plate, rotation axis is provided on the sliding block, the rotation section is rotatably connected with the slide block by the rotation axis.In the prior art, Lumbar is often fixed setting, and when human body is using different sitting postures or conversion sitting posture, Lumbar cannot effectively support human body waist to cause human body uncomfortable.Compared to the prior art, the present invention enables waist backup plate to automatically adjust by the rotation of rotation section and the sliding of sliding block, and when human body is using different sitting postures or conversion sitting posture, waist backup plate still is able to effectively support human body waist.)

1. a kind of automatic adjustment Lumbar, it is characterised in that: include: waist backup plate (1), sliding slot (2)；

Connecting plate (11) are provided on the waist backup plate (1)；

It is provided with sliding block (21) on the sliding slot (2), the sliding block (21) slidably connect with the sliding slot (2), the cunning Spring is provided between block (21) and the inner wall of the sliding slot (2)；

It is provided with rotation section (111), is provided with rotation axis (211) on the sliding block (21), described turn on the connecting plate (11) Dynamic portion (111) are rotatably connect with the sliding block (21) by the rotation axis (211).

2. a kind of automatic adjustment Lumbar according to claim 1, it is characterised in that: be additionally provided on the connecting plate (11) Rake (112), the rake (112) are obliquely installed relative to the sliding block (21), the rake (112) and the waist Portion's backup plate (1) is fixedly connected.

3. a kind of automatic adjustment Lumbar according to claim 2, it is characterised in that: incline on the sliding block (21) far from described One end of inclined portion (112) is provided with supporting block (212), and the supporting block (212) and the waist backup plate (1) are inconsistent.

4. a kind of automatic adjustment Lumbar according to claim 1, it is characterised in that: be provided on the sliding block (21) described The side of rotation axis (211) protrudes from the sliding slot (2) outside, and the other side of the sliding block (21) is provided with T-type protrusion (213), The T-type raised (213) is embedded in the sliding slot (2).

5. a kind of automatic adjustment Lumbar according to claim 1, it is characterised in that: the both ends of the sliding slot (2) are also set up There is conflict raised (22).

6. a kind of automatic adjustment Lumbar according to claim 1, it is characterised in that: the spring is along the sliding slot (2) Long axis setting.

7. a kind of automatic adjustment Lumbar according to claim 1, it is characterised in that: the waist backup plate (1) is arch.

8. a kind of automatic adjustment chair back, it is characterised in that: include: waist described in any one claim of claim 1 to 7 It leans on.

9. a kind of automatic adjustment chair back according to claim 8, it is characterised in that: it further include leaning against (3), it is described to lean against (3) it is provided on keel (31), is provided with sliding slot (2) on the keel (31).

10. a kind of automatic adjustment chair back according to claim 9, it is characterised in that: described lean against (3) are arch.

Technical field

The present invention relates to seat parts design field more particularly to a kind of automatic adjustment Lumbar and the chair back.

Background technique

Seat is article indispensable in people's daily life, and good seat uses more comfortably, with human body Compactness is higher, more can effectively support back and the waist of human body, but works as people and use different sitting postures, such as: incline and leans against It on chair, is just sitting on chair, the relative position of the Lumbar of the waist and chair of human body is different, when people convert sitting posture When, such as: by just sit be converted to incline by when, the waist of human body can generate relative displacement with the Lumbar of chair, so that Lumbar can not The waist of effectively support human body makes human body generate sense of discomfort.

Chinese patent discloses a kind of multi-function ofice chair, including seat keel, adjustable seat frame and the chair back, seat keel are in " people " font, the foot of seat keel are extended downwardly and are interconnected, and form the keel skeleton frame for installing adjustable seat frame, the chair back It is mounted on seat keel by waist, backrest and arch by waist including separately positioned backrest and arch, backrest can be along seat keel The sliding of spine direction, the bottom of adjustable seat frame is equipped with load-bearing chassis, and keel skeleton frame is extended with a pair and is screwed in load-bearing chassis one The snapping arm of side；The foot of seat keel and the junction of keel skeleton frame are separately installed with adjustable handrail, and adjustable handrail includes helping Hand, rotating part and lifting unit, armrest part inlay card are equipped with female end interface, lifting in one end of rotating part, the other end of rotating part The one end in portion is embedded in keel skeleton frame, and the other end of lifting unit is equipped with the male end interface perpendicular to lifting unit, rotating part and liter Drop portion is connected by female end interface with male end Interference fit.Although the position of backrest and the position of handle can effectively be adjusted, To adapt to the crowd of different building shape, but its Lumbar is appointed so to be fixedly installed, therefore when human body converts sitting posture, cannot be effective Support the waist of human body.Thus it is clear that design a kind of Lumbar that can be automatically adjusted and the chair back be very it is necessary to.

Summary of the invention

The technical issues of for the prior art, the present invention provides a kind of automatic adjustment Lumbar and the chair back.

In order to solve the above technical problems, the present invention provides technical solutions below:

A kind of automatic adjustment Lumbar, comprising: waist backup plate, sliding slot；Connecting plate is provided on the waist backup plate；On the sliding slot It is provided with sliding block, the sliding block is slidably connect with the sliding slot, is provided between the sliding block and the inner wall of the sliding slot Spring；It is provided with rotation section on the connecting plate, rotation axis is provided on the sliding block, the rotation section passes through the rotation axis Rotatably it is connected with the slide block.

In actual motion, human body waist can apply pressure to waist backup plate, with the difference of human body sitting posture, human body waist The pressure applied to waist backup plate can generate variation, when sitting posture changes, and the pressure being applied on waist backup plate generates variation, waist Portion's backup plate can be rotated by the rotation section on connecting plate by axis of rotation axis, so that waist backup plate can be with human lumbar Portion is sufficiently bonded.When using special sitting posture, such as: incline when leaning against on chair, the pressure being applied on waist backup plate can generate one A component along sliding slot, the component of generation can promote waist backup plate to prolong sliding slot sliding by rotation section band movable slider, to press The spring between sliding block and the inner wall of sliding slot is arranged in contracting, so that spring applies to sliding block, direction is contrary with component to be pushed away Power, when thrust is equal with the sum of component, waist backup plate gravity, sliding block gravity three, sliding block stops movement, so that waist The relative position of backup plate and human body waist is constant.To sum up, the present invention can automatically adjust waist backup plate, so that when human body is sat When appearance changes, waist backup plate still is able to effectively support human body waist.

Further, rake is additionally provided on the connecting plate, the rake is arranged relative to the slider tilt, The rake is fixedly connected with the waist backup plate.

Further, one end on the sliding block far from the rake is provided with supporting block, the supporting block with it is described Waist backup plate is inconsistent.

Further, the side that the rotation axis is provided on the sliding block protrudes from outside the sliding slot, the sliding block The other side is provided with T-type protrusion, and the T-type protrusion is embedded in the sliding slot.

Further, the both ends of the sliding slot are additionally provided with conflict protrusion.

Further, the spring is arranged along the long axis of the sliding slot.

Further, the waist backup plate is arch.

A kind of automatic adjustment chair back, including a kind of above-mentioned automatic adjustment Lumbar.

It further, further include leaning against, described lean against is provided with keel, is provided with sliding slot on the keel.

Further, described to lean against as arch.

Compared to the prior art, the invention has the following advantages that

By rotation section using rotation axis as the rotation of axis and the cooperation of sliding block sliding, so that human body is using different sitting postures or turns When changing sitting posture, waist backup plate still is able to effectively support human body waist.

By the thrust of spring, on the one hand when not using chair, thrust can offset the gravity of waist backup plate, to tie up It holds waist backup plate and is in initial position, enable waist backup plate corresponding with human body waist when human body reuses chair, On the other hand, when using chair, thrust can offset the sum of component, waist backup plate gravity, sliding block gravity three, to pass through Waist backup plate is adjusted, so that not generating relative displacement between waist backup plate and human body waist.

On the one hand waist is leaned on so that waist backup plate is arranged relative to slider tilt by the rake on connecting plate Plate can effectively be bonded the curved backbone of human body, on the other hand make waist backup plate and lean against between there are gaps, to prevent Waist backup plate during rotation with lean against generate conflict.

Detailed description of the invention

Fig. 1: waist backup plate structure chart.

Fig. 2: slide block structure figure.

Fig. 3: sliding groove structure figure.

Fig. 4: Lumbar overall structure figure.

Fig. 5: chair back overall structure figure.

In figure: 1- Lumbar, 2- sliding slot, 3- backrest, 11- connecting plate, 21- sliding block, 22- contradict protrusion, 31- keel, 111- Rotation section, 112- rake, 211- rotation axis, 212- supporting block, 213-T type protrusion, 311- groove.

Specific embodiment

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.