CN110507099A - A kind of antitheft chair that can stablize suspension package - Google Patents
A kind of antitheft chair that can stablize suspension package Download PDFInfo
- Publication number
- CN110507099A CN110507099A CN201910794667.6A CN201910794667A CN110507099A CN 110507099 A CN110507099 A CN 110507099A CN 201910794667 A CN201910794667 A CN 201910794667A CN 110507099 A CN110507099 A CN 110507099A
- Authority
- CN
- China
- Prior art keywords
- package
- chair
- casket
- back leg
- foreleg
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 16
- 210000001364 upper extremity Anatomy 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
- A47C7/622—Receptacles, e.g. cup holders, storage containers
Landscapes
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The invention patent discloses a kind of chair that can stablize suspension package, it is characterized in that, it include: foreleg, back leg, seat, backrest, package casket, reinforcing bar, pilferproof closure, hinge, safety lock, described is equipped with package casket by back, the foreleg is perpendicular to horizontal line, the back leg is obliquely installed to the direction of foreleg, and the fulcrum of the back leg and the rightmost side point of package casket are in same vertical line.The present invention can not only sit people and guarantee comfort level, but also can arbitrarily place the package such as school bag, while guarantee overturning-free, by the multiple utilization in space, improve space utilization rate, facilitate the suspension of the packages such as school bag, package can also be prevented stolen.
Description
Technical field
The present invention is to be related to a kind of chair structure, concretely relates to a kind of backed can stablize of band and hangs packet
The Anti-theft chair wrapped up in.
Background technique
Nowadays, in dormitory, have become outfit indispensable in dormitory with backed chair.Dormitory simultaneously
Space on interior each student's desk is not very big, thus school bag is placed on above desk just and seems and more take up space, so learning
Life can be to always habitually liking school bag being suspended on the backrest of chair after dormitory or be placed on the seat of chair.Based on this two
The problem of planting the method for placing school bag, producing two puzzlement people: on the seat that school bag is placed on chair, school bag is biggish
Volume causes the space taken one's seat on chair to remain little, and student can sit with also just not having, even if can sit with having, also almost
Without too big area of taking one's seat, sit up like a hen on a hot girdle.And when the back that leans on for school bag being suspended on chair, many times due to book
The quality of packet is larger, causes to translate into when chair unloaded (meaning that chair only hangs school bag without sitting people, similarly hereinafter herein) and one
The more thing of headache.The principle wherein overturned is as follows:
When the backrest of chair, which hangs school bag, is in balance, if the weight of chair is P, the weight of school bag is F, chair front and back
The holding power of leg is respectively F1、F2, the horizontal distance of direction such as Fig. 1, two moment chair rear legs are respectively a, b.Then to chair zero load
When equilibrium equation are as follows:
∑MO=0:Pa-F1L-Fb=0；
It acquires:
With the increase of school bag weight F, F1Reduce, works as F1When being reduced to zero,
When F continues to increase, ∑ MO: Pa < Fb, chair will fall over.
So chair maximum can only suspended weights beSchool bag weight, be restricted larger.
Therefore, we measure in view of this consideration, in conjunction with mechanics principle, improve to common with backed chair,
So that improved chair can both sit people, the package such as school bag can also be hung under any circumstance and is unlikely to overturn, no
Space utilization rate is improved only, also solves the problems, such as school bag placement；Increase safety device simultaneously, makes chair structure can be with
Prevent package stolen.
Summary of the invention
The purpose of the present invention is overcoming deficiency in the prior art, provides a kind of can stablize and hang the antitheft of package
Chair.
In order to solve the above technical problem, the present invention provides following technical solutions:
A kind of chair that can stablize suspension package characterized by comprising foreleg, back leg, seat, backrest, it is described
By back be equipped with package casket, perpendicular to horizontal line, the back leg is obliquely installed the foreleg to the direction of foreleg, described
The fulcrum of back leg and the rightmost side point B of package casket are in same vertical line, to ensure that the center of gravity for wrapping up casket is located at chair center of gravity line
Between the fulcrum O of back leg bottom.
Wherein, it is 21~24 ° that the angle of the back leg and vertical line, which is β, the angle α of the backrest and vertical line is 11~
15°。
Wherein, the distance between foreleg and back leg fulcrum are L, and the center of gravity line of chair is a, backrest at a distance from back leg fulcrum
Center of gravity line is b at a distance from back leg fulcrum, whereinAnd
Preferably, the foreleg, back leg are fixedly connected by reinforcing bar, preferably foreleg and foreleg, foreleg and back leg
Between be fixedly connected by reinforcing bar.
Preferably, the package casket is equipped with pilferproof closure.
Preferably, the pilferproof closure is equipped with safety lock.
Preferably, the pilferproof closure is connect by hinge with backrest.
Working principle of the present invention is as follows: traditional chair is improved, by the back leg bottom of traditional chair
Fulcrum O move back so that the center of gravity vertical line of package weight F is moved to it of chair center of gravity vertical line and back leg bottom fulcrum O
Between；It adds with two sides behind backrest simultaneously and wraps up casket, when school bag is placed on inside package casket, the constraint for wrapping up casket can be protected
The center of gravity vertical line of card package will not be displaced to the right side of fulcrum O.According to mechanics principle, chair just will not be overturned, and can be stablized
Ground hangs the package such as school bag.
When school bag is placed on inside the subsequent package casket of backrest, mechanical analysis is carried out to chair and school bag:
∑MO=0:Pa+Fb-F1L=0
Assuming that chair can overturn clockwise just, then F1=0, equation will be invalid, it is clear that chair can not be suitable around fulcrum O
Hour hands overturn；Similarly, chair is also impossible to overturn counterclockwise around fulcrum A.So fulcrum O is moved back and after backrest 4 plus package
Casket can guarantee that chair is overturning-free.As long as theoretically the strength of materials of chair is secure, the weight of school bag is just unrestricted.
In addition, hinge opens and closes pilferproof closure arbitrarily, so that package can take out and be packed at any time package casket, in conjunction with safety
Lock can prevent package stolen.
The utility model has the advantages that
Compared with prior art, the beneficial effects of the present invention are:
The present invention provides a kind of novel chairs that can stablize the packages such as suspension school bag, utilize the principle of mechanics, solution
Chair of having determined is easy the problem of overturning after hanging the package such as school bag.People can not only be sat and guarantee comfort level, but also can be with
The package such as school bag is arbitrarily placed, while guaranteeing overturning-free, by the multiple utilization in space, space utilization rate is improved, school bag etc. is facilitated to wrap
The suspension wrapped up in can also prevent package stolen.
Detailed description of the invention
Fig. 1 is the side block diagram and force analysis figure for improving rear backrest chair.
Fig. 2 is the tomograph for improving rear backrest chair.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
In Fig. 1~2,1 it is foreleg, 2 is back leg, 3 is seat, 4 is backrest, 5 is package casket, 6 is reinforcing bar, 7 is antitheft
Lid, 8 be hinge, 9 be safety lock.
A kind of chair that can stablize suspension package characterized by comprising foreleg, back leg, seat, backrest, it is described
Be equipped with package casket by back, perpendicular to horizontal line, the back leg is set the foreleg to the direction inclination departing from foreleg
It sets, the fulcrum of the back leg and the rightmost side point B of package casket are in same vertical line, to ensure that the center of gravity for wrapping up casket is located at chair
Between center of gravity line and back leg bottom fulcrum O.
The angle β of the back leg and vertical line is 21~24 °, and the angle α of the backrest and vertical line is 11~15 °.
Wherein, the distance between foreleg and back leg fulcrum are L, and the center of gravity line of chair is a, backrest at a distance from back leg fulcrum
Center of gravity line is b at a distance from back leg fulcrum, whereinAnd
Preferably, the foreleg, back leg are fixedly connected by reinforcing bar, preferably foreleg and foreleg, foreleg and back leg
Between be fixedly connected by reinforcing bar.
Preferably, the package casket is equipped with pilferproof closure.
Preferably, the pilferproof closure is equipped with safety lock.
Preferably, the pilferproof closure 7 is connect by hinge 8 with backrest 4.Hinge 8 opens and closes pilferproof closure 7 at any time,
Package just can take out and be packed at any time package casket 5, in conjunction with safety lock 9, package can be prevented stolen.
Working principle of the present invention is as follows: traditional chair is improved, by 2 bottom of back leg of traditional chair
Fulcrum O move back so that the center of gravity vertical line of package weight F is moved between chair center of gravity line and chair rear leg fulcrum O；Simultaneously
Plus package casket 5 after backrest 4, when school bag is placed on package 5 the inside of casket, the constraint of package casket 5 can guarantee the center of gravity of package
Vertical line will not be displaced to the right side of fulcrum O.According to mechanics principle, chair just will not be overturned, and can steadily hang school bag etc.
Package.
Wherein, specific mechanics principle are as follows: when school bag is placed on 4 subsequent package case of backrest, to chair and school bag into
Row mechanical analysis:
∑MO=0:Pa+Fb-F1L=0
Assuming that chair can overturn clockwise just, then F1=0, equation will be invalid, it is clear that chair can not be suitable around fulcrum O
Hour hands overturn；Similarly, chair is also impossible to overturn counterclockwise around fulcrum A.So fulcrum O is moved back and after backrest 4 plus package
Casket can guarantee that chair is overturning-free.Meanwhile as long as theoretically the strength of materials of chair is secure, the weight of school bag is just unrestricted
System.
Improved chair can not only sit people and guarantee comfort level, but also can arbitrarily place the package such as school bag, together
When, guarantees overturning-free, improves space utilization rate, package can also be prevented stolen.
Undeclared part involved in the present invention is same as the prior art or is realized using the prior art.
Claims (8)
1. the chair that one kind can stablize suspension package characterized by comprising foreleg (1), seat (3), leans on back leg (2)
(4), package casket (5), reinforcing bar (6), pilferproof closure (7), hinge (8), safety lock (9) are carried on the back, the backrest (4) is equipped with package
Casket (5), the foreleg (1) are obliquely installed perpendicular to horizontal line, the back leg (2) to the direction of foreleg (1), the back leg
(2) rightmost side point of fulcrum and package casket (5) is in same vertical line.
2. it is according to claim 1 can stablize suspension package chair, which is characterized in that the back leg (2) and hang down
The angle β of straight line is 21~24 °, and it is 11~15 ° that the angle of the backrest (4) and vertical line, which is α,.
3. the chair according to claim 1 that suspension package can be stablized, which is characterized in that foreleg and back leg fulcrum it
Between distance be L, the center of gravity line of chair with back leg fulcrum at a distance from be a, backrest center of gravity line at a distance from back leg fulcrum be b,
In,And
4. the chair according to claim 1 that suspension package can be stablized, which is characterized in that the foreleg (1), after
Leg (2) is fixedly connected by reinforcing bar (6).
5. the chair according to claim 1 that suspension package can be stablized, which is characterized in that the package casket (5)
It is equipped with pilferproof closure (7).
6. the chair according to claim 1 that suspension package can be stablized, which is characterized in that on the pilferproof closure (7)
Equipped with safety lock (9).
7. the chair according to claim 1 that suspension package can be stablized, which is characterized in that the pilferproof closure (7) is logical
Hinge (8) is crossed to connect with backrest (4).
8. the chair according to claim 1 that suspension package can be stablized, which is characterized in that two sides of backrest (4)
Face and be equipped with below package casket (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794667.6A CN110507099A (en) | 2019-08-27 | 2019-08-27 | A kind of antitheft chair that can stablize suspension package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794667.6A CN110507099A (en) | 2019-08-27 | 2019-08-27 | A kind of antitheft chair that can stablize suspension package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110507099A true CN110507099A (en) | 2019-11-29 |
Family
ID=68628077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910794667.6A Pending CN110507099A (en) | 2019-08-27 | 2019-08-27 | A kind of antitheft chair that can stablize suspension package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110507099A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201171493Y (en) * | 2008-04-03 | 2008-12-31 | 魏昕 | Back rest chair with object storing box |
| CN102160721A (en) * | 2011-03-25 | 2011-08-24 | 合肥百兰思智能机械有限公司 | Gravity center following couch |
| CN203828441U (en) * | 2014-03-11 | 2014-09-17 | 应瑛 | Chair |
| CN204708352U (en) * | 2015-06-14 | 2015-10-21 | 李和良 | A kind of seat |
| CN107518651A (en) * | 2017-10-24 | 2017-12-29 | 浙江安立博休闲用品有限公司 | A kind of chair of anti-hypsokinesis |
| CN109998306A (en) * | 2019-04-20 | 2019-07-12 | 佛山市联润家具有限公司 | A kind of multifunction chair |
| CN211483679U (en) * | 2019-08-27 | 2020-09-15 | 河海大学 | Anti-theft backrest chair capable of being stably suspended and wrapped |
-
2019
- 2019-08-27 CN CN201910794667.6A patent/CN110507099A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201171493Y (en) * | 2008-04-03 | 2008-12-31 | 魏昕 | Back rest chair with object storing box |
| CN102160721A (en) * | 2011-03-25 | 2011-08-24 | 合肥百兰思智能机械有限公司 | Gravity center following couch |
| CN203828441U (en) * | 2014-03-11 | 2014-09-17 | 应瑛 | Chair |
| CN204708352U (en) * | 2015-06-14 | 2015-10-21 | 李和良 | A kind of seat |
| CN107518651A (en) * | 2017-10-24 | 2017-12-29 | 浙江安立博休闲用品有限公司 | A kind of chair of anti-hypsokinesis |
| CN109998306A (en) * | 2019-04-20 | 2019-07-12 | 佛山市联润家具有限公司 | A kind of multifunction chair |
| CN211483679U (en) * | 2019-08-27 | 2020-09-15 | 河海大学 | Anti-theft backrest chair capable of being stably suspended and wrapped |
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