CN207492423U - A kind of armchair structure for having movable back - Google Patents
A kind of armchair structure for having movable back Download PDFInfo
- Publication number
- CN207492423U CN207492423U CN201720321227.5U CN201720321227U CN207492423U CN 207492423 U CN207492423 U CN 207492423U CN 201720321227 U CN201720321227 U CN 201720321227U CN 207492423 U CN207492423 U CN 207492423U
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- China
- Prior art keywords
- attachment device
- armchair structure
- movable back
- turning joint
- backrest
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- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 208000029549 Muscle injury Diseases 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000037396 body weight Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
A kind of armchair structure for having movable back, including supporting leg, backrest body, turning joint, back bracket, attachment device and limiting device, turning joint is installed on the lower part of backrest body, and turning joint is connected by attachment device with back bracket, and backrest can rotate in the range of limiting device restriction.It can easily movable waist using the seat of this structure.
Description
Technical field
The utility model is related to a kind of armchair structure, particularly it is a kind of can movable waist armchair structure.
Background technology
What much people were different degrees of suffers from chronic low back muscle damage, influences work, study, pain is brought to life.
In sitting posture or standing position, upper part of the body weight is pressed on lumbar vertebrae and psoas people, is easily bent lumbar vertebra anterior arch, long-term waist
Portion's anterior arch bending is to cause one of waist muscle damage reason.What doctor recommended tempers waist, the side for alleviating the swollen feeling of waist acid
Method is all that waist to be made is folded back upon, and it is in the anti-state bent to make lumbar vertebrae., for axis, in the absence of external forces, in the middle part of lumbar vertebrae
Maintain lumbar vertebrae it is counter bend it is folded back upon be it is highly difficult, few people can take regular exercise so that waist muscle damage is into being not easy to treat
The illness of elimination.
Invention content
Existing difficulty, is more prone to waist exercise during in order to overcome waist exercise, and the utility model provides one kind
There is the armchair structure of movable back.
A kind of armchair structure for having movable back, including supporting leg, backrest body, turning joint, back bracket, connection dress
It puts and limiting device, turning joint is installed on the lower part of backrest body, turning joint is connected by attachment device with back bracket,
Backrest can rotate in the range of limiting device restriction.
The turning joint can be a kind of T fonts pin, and the horizontal end of T font pins is fixed on by back, pin
Vertical end is inserted in the hole of attachment device.
The turning joint can be two bolts, and latch body is mounted on by back, and shank is inserted in attachment device pair
In the hole answered, bolt rear end can be there are one compression spring.
The turning joint can be an axis, and axis is fixed in itself by back, and the both ends of axis are fixed on attachment device
On.
The limiting device, can be back bracket in itself.
The limiting device, at least more than one pair of protrusion that can be mounted in back bracket or attachment device
Object.
The attachment device can be at least more than one pair of hole or U-shaped in the relative position of back bracket top
Card slot.
The limiting device and attachment device, can be a prismatoids, and there are two protrusion, ladders at the broadside of prismatoid
The inside of bottom is there are one hole at body narrow side, close to trapezoidal narrow side at there are one cross-drilled hole, have screw thread at the most narrow end of prismatoid
Locking device.
The limiting device and attachment device, it is U-shaped to be that a hollow pipe is converted into, under close at U-shaped cross bar
Folding institute is into each there are one protrusion at folding under U-shaped cross bar, two ports of U-shaped bar are connected to screw-threaded coupling device.
This section is deleted
The principle of the utility model:With reference to figure 7, Fig. 8:One lever is placed on the small of the back, the lower end n points of lever resistance arm
It is against the middle part of lumbar vertebrae, the upper end b of power arm is attached to back, and fulcrum m makes E times of resistance brachium of power arm in the lower part of lever
Degree;When shoulder back is swung back, lever is in non-equilibrium state, can be rotated by axis of fulcrum m, move, be against after the b points of lever power end
Resistance arm n ends in the middle part of lumbar vertebrae are moved forward by E times of thrust backward, and mobile distance is the 1/E of shifting distance after b points, is made
Waist is in the anti-state bent.
By experiment it is found that by the back of people for original state to 10 ° of layback, when the power arm and resistance arm of lever
Ratio E be less than or equal to 1 when, waist only supported, the power very little being subject to;As balance pivot m is moved down, E values increase,
The reason of power that waist is subject to gradually increases, and can be slightly reduced after reaching maximum value, reduction is with the increase of E values, under lever
The displacement for holding n towards lumbar vertebrae direction reduces, and the forward displacement of waist reduces;So consider, the ratio of power arm and resistance arm
Value 4 >=E >=3 are a preferred areas.
Good effect
When people sit on the seat when, backrest lower edge has been attached on lower caging device at this time, by chair top, backrest surface and
Cooperation between upper half of human body weight makes the buttocks of people be between chair top and backrest lower edge, and the middle part of lumbar vertebrae is by backrest
Lower edge resist, slightly firmly swing back above the waist, back is bonded with backrest, and lumbar vertebrae would be at close to ideal physiology shape
State.When needing to temper waist, only need to make shoulder, back again to layback by the strength of waist abdomen or two-arm, backrest upper edge by
The promotion of one power F backward because the structure of backrest is a lever, the lower edge of backrest can to waist one be several times as much as
The power of F makes lumbar vertebrae forward, in the anti-state bent, loosens after continuing 1--3 seconds, makes lumbar vertebra recovery to original state;Make again
Shoulder back is swung back, and lumbar vertebrae is made to loosen again after maintaining 1--3 seconds, in cycles in the anti-state bent.It is damaged by many waist muscles
The patient of wound tries out, it is this using itself strength carry out this slow, periodic waist movement, can it is very laborsaving and
The effective symptom alleviated waist and ached.
Description of the drawings
Fig. 1 is backrest to latter linked armchair structure schematic diagram;
Fig. 2 is the structure diagram in T-shaped joint;
Fig. 3 is a kind of limiting device and attachment device is integrated armchair structure schematic diagram;
Fig. 4 is a kind of limiting device and attachment device is integrated structure diagram;
Fig. 5 is a kind of limiting device and attachment device is integrated armchair structure schematic diagram;
Fig. 6 is a kind of limiting device and attachment device is integrated structure diagram;
Fig. 7 is the principle schematic of the utility model;
Fig. 8 is the schematic diagram using the utility model activity waist.
Specific embodiment
The utility model is described in detail with embodiment below in conjunction with the accompanying drawings:
Embodiment one:As shown in Figure 1 and Figure 2:The armchair structure of movable waist includes backrest 1, back bracket 6, in work
There is turning joint 4 at dynamic backrest middle and lower part 1/4, have hole 3 more than at least one set in back bracket, the pin of turning joint is inserted
In the hole of different height, the height of adjustable backrest;In this embodiment, the back rest supports of lower edge play close on backrest
The function of limiting device, makes the backrest will not overturn.
Embodiment two:Referring to Fig. 3, Fig. 4:The armchair structure of movable waist includes backrest 1, back bracket 6, and activity is closed
Section 4,3 shape of attachment device is similar trapezoidal, and internal there are one hole 11, the diameter in hole is slightly larger than the outer diameter of back bracket;It is connecting
There is limiting device 2 in device upper end, and lower end has screw thread to latch 7, and there is hole 8 in middle and lower part;Turning joint at movable back lower part 1/4
4 be an axis, and the both ends of axis are inserted in the hole 8 of attachment device 3, and attachment device 3 is sleeved on back bracket bar, backrest support rods top
Portion is opened downwards there are one long mouth, and attachment device 3 can be slided in backrest support rods 6, and to adjust the height of backrest, adjustment is closed
Screw thread lock is tightened after suitable.
Embodiment three:Referring to Fig. 5, Fig. 6:There are two movable latch, the ontology installations of movable latch for 1 lower part of movable back
At backrest lower part 1/5, pin is inserted in attachment device 3, and bolt rear end can install a spring, and locking pin will not be unexpected
Abjection;Attachment device 3 be bent into the pipe passed through in one slightly larger than backrest support rods it is U-shaped, and at U-shaped top cross bar
It is formed after downward bending, in bending part installation, there are two protrusions;There are screw thread lock 7 in two ports of U-shaped attachment device, U-shaped
For the port sleeve of attachment device in back rest supports, backrest support rods top down opens the height that attachment device 3 is adjusted there are one elongated slot
Degree, it is possible to adjust the height of backrest lower edge, after adjusting, tighten two nut locks.
Claims (9)
1. a kind of armchair structure for having movable back, including supporting leg, backrest body, turning joint, back bracket, attachment device
And limiting device, it is characterised in that:Turning joint is installed on the lower part of backrest body, and turning joint passes through attachment device and backrest
Stent connects, and backrest can rotate in the range of limiting device restriction.
2. a kind of armchair structure for having movable back according to claim 1, it is characterised in that:The turning joint,
Can be a kind of T fonts pin, the horizontal ends of T font pins is fixed on by back, and the vertical end below pin is inserted in attachment device
Hole in.
3. a kind of armchair structure for having movable back according to claim 1, it is characterised in that:The turning joint,
Can be two bolts, latch body is mounted on by back, and shank is inserted in the hole of attachment device, bolt rear end can there are one
Compression spring.
4. a kind of armchair structure for having movable back according to claim 1, it is characterised in that:The turning joint,
Can be an axis, axis is fixed in itself by back, and the both ends of axis are fixed in attachment device.
5. a kind of armchair structure for having movable back according to claim 1, it is characterised in that:The limiting device,
Can be back bracket in itself.
6. a kind of armchair structure for having movable back according to claim 1, it is characterised in that:The limiting device,
At least more than one pair of protrusion that can be mounted in back bracket or attachment device.
7. a kind of armchair structure for having movable back according to claim 1, it is characterised in that:The attachment device,
Can be at least more than one pair of hole or U-shaped card slot in the relative position of back bracket top.
8. a kind of armchair structure for having movable back according to claim 1, it is characterised in that:The limiting device and
Attachment device, can be a prismatoid, and there are two protrusion at the broadside of prismatoid, the inside of bottom has one at prismatoid narrow side
Close at trapezoidal narrow side there are one cross-drilled hole, there is screw-threaded coupling device in a hole at the most narrow end of prismatoid.
9. a kind of armchair structure for having movable back according to claim 1, it is characterised in that:The limiting device and
Attachment device, it is U-shaped to be that a hollow pipe is converted into, and folding institute is into two ports of U-shaped bar connect under close at U-shaped cross bar
There is screw-threaded coupling device, each at folding under U-shaped cross bar there are one protrusions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201720321227.5U CN207492423U (en) | 2017-03-30 | 2017-03-30 | A kind of armchair structure for having movable back |
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CN201720321227.5U CN207492423U (en) | 2017-03-30 | 2017-03-30 | A kind of armchair structure for having movable back |
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Publication Number | Publication Date |
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CN207492423U true CN207492423U (en) | 2018-06-15 |
Family
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CN201720321227.5U Active CN207492423U (en) | 2017-03-30 | 2017-03-30 | A kind of armchair structure for having movable back |
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CN (1) | CN207492423U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106820714A (en) * | 2017-03-30 | 2017-06-13 | 刘高潮 | A kind of armchair structure for having a movable back |
-
2017
- 2017-03-30 CN CN201720321227.5U patent/CN207492423U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106820714A (en) * | 2017-03-30 | 2017-06-13 | 刘高潮 | A kind of armchair structure for having a movable back |
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Addressee: Liu Gaochao Document name: payment instructions |
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