CN203929652U - A kind of use for laboratory PH test paper device - Google Patents
A kind of use for laboratory PH test paper device Download PDFInfo
- Publication number
- CN203929652U CN203929652U CN201420283575.4U CN201420283575U CN203929652U CN 203929652 U CN203929652 U CN 203929652U CN 201420283575 U CN201420283575 U CN 201420283575U CN 203929652 U CN203929652 U CN 203929652U
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- test paper
- housing
- lower cover
- end cap
- chamber
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Abstract
The utility model provides a kind of use for laboratory PH test paper device, belongs to experimental article technical field.It has solved easily exposed aerial problem of existing PH test paper.This PH test paper device, comprise PH test paper and the housing with the chamber that can deposit PH test paper, housing is fastened and is formed by upper cover body and lower cover, the middle part of lower cover is vertically connected with the rotary column that can be wound around PH test paper, and rotary column can rotate relative to lower cover, is also provided with the storage chamber being communicated with chamber in housing, in storage chamber, deposited drying agent, housing is provided with the outlet of PH test paper, is provided with a pair of roller passing for PH test paper in the chamber near outlet, is also connected with the end cap that outlet is sealed on housing.This PH test paper device can improve the resting period of PH test paper by not needing the PH test paper using to be sealed in housing, reduces PH test paper and makes moist and pollute.
Description
Technical field
The utility model belongs to experimental article technical field, relates to a kind of use for laboratory PH test paper device.
Background technology
When student carries out chemical experiment in the laboratory of school, need to use PH test paper solution is carried out to soda acid performance test.This PH test paper is also litmus paper, is a kind of ready-made test paper, during use, tears one, is placed in surface plate, with a dry glass bar, dips a solution from glass container, from its change color, just can know the Acidity of Aikalinity of solution, very convenient.The PH test paper that Lab Manager or teacher generally can be torn into test paper a bit of 5 centimetres of left and right is in advance assigned to the surface plate of each laboratory table, facilitates student to enter laboratory and just can use, and avoid student to abuse and waste.
But because chemical laboratory is moister, PH test paper long term exposure is easily made moist and is polluted in air, affects test result, so PH test paper must seal preservation when not using.But the chemical teacher of current most of school is left in sealed bag or in sealed box by PH test paper, while testing, just take out, and student is while needing more PH test paper, teacher will tear conveniently and reissue PH test paper, so PH test paper is to be all exposed to outside in whole course, and the PH test paper of having provided also cannot reclaim, can only abandon.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of good airproof performance, PH test paper device easy to use.
The purpose of this utility model can realize by following technical proposal: a kind of PH test paper device, comprise PH test paper and the housing with the chamber that can deposit PH test paper, described housing is fastened and is formed by upper cover body and lower cover, the middle part of described lower cover is vertically connected with the rotary column that can be wound around PH test paper, described rotary column can rotate relative to lower cover, in described housing, be also provided with the storage chamber being communicated with chamber, in described storage chamber, deposited drying agent, described housing is provided with the outlet of PH test paper, in the described chamber near outlet, be provided with a pair of roller passing for PH test paper, on described housing, be also connected with the end cap that outlet is sealed.
The spacing of described two rollers equates with the thickness of PH test paper.Just PH test paper is clipped between two rollers, can make PH test paper stuck, can not make again the landing of PH test paper.
One sidewall of described storage chamber has bleeder vent and is connected with chamber.The drying agent of storage chamber can pass through bleeder vent, makes to guarantee certain drying property to prevent that PH test paper from polluting because making moist in whole chamber.
Described lower cover is square.
The exit of described lower cover is provided with two grooves, has two protruding fixture blocks on described end cap, and fixture block embeds in groove end cap and lower cover are linked closely mutually.Make housing in closed state, reduce circulation of air, improved the PH test paper resting period.
Described end cap is connected by rope with housing.Rope one end ties up on housing, and the other end ties up on end cap, and when opening end cap use, end cap hangs on housing by rope, prevents from dropping loseing.
As another kind of scheme, on described lower cover, offer the chute that can hold end cap, on described end cap, there is protruding push-and-pull portion, described lower cover offers through hole and exposes for push-and-pull portion, and described end cap slides and does to open and close the action of outlet along chute.Can slide up and down by the push-and-pull portion of exposing, play and allow housing carry out a kind of state of closure.
Compared with prior art, this use for laboratory PH test paper device, by PH test paper embedding device, in the time of need to getting PH test paper, can be got in a quantity as required as experiment, and unwanted PH test paper is sealed in housing.Can not occur again taking all that whole PH test paper is exposed in air at every turn, the resting period of having improved PH test paper, reduce PH test paper and make moist and pollute.
Accompanying drawing explanation
Fig. 1 is that the lower cover of this PH test paper device in embodiment mono-dissects structural scheme of mechanism.
Fig. 2 is the lower cover stereoscopic mechanism schematic diagram of this PH test paper device in embodiment mono-.
Fig. 3 is the lower cover stereoscopic mechanism schematic diagram of this PH test paper device in embodiment bis-.
In figure, 1, PH test paper; 2, housing; 3, lower cover; 31, upper cover body; 4, rotary column; 5, storage chamber; 6, chamber; 7, drying agent; 8, roller; 9, end cap; 10, groove; 11, fixture block; 12, chute; 13, push-and-pull portion; 14, rope.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Embodiment mono-
As depicted in figs. 1 and 2, this use for laboratory PH test paper 1 device comprises PH test paper 1 and has the housing 2 of the chamber 6 that can deposit PH test paper 1, housing 2 is fastened and is formed by upper cover body 31 and lower cover 3, the middle part of lower cover 3 is vertically connected with the rotary column 4 that can be wound around PH test paper 1, rotary column 4 can rotate relative to lower cover 3, in housing 2, be also provided with the storage chamber 5 being communicated with chamber 6, in storage chamber 5, deposited drying agent 7, housing 2 is provided with the outlet of PH test paper 1, in the chamber 6 near outlet, be provided with a pair of roller 8 passing for PH test paper 1, on housing 2, be also connected with the end cap 9 that outlet is sealed.
The spacing of two rollers 8 equates with the thickness of PH test paper 1.Just PH test paper 1 has been clipped between two rollers 8, can made PH test paper 1 stuck, had and can not make 1 landing of PH test paper.One sidewall of storage chamber 5 has bleeder vent and is connected with chamber 6.The drying agent 7 of storage chamber 5 can pass through bleeder vent, makes the certain drying property of the interior assurance of whole chamber 6, prevents that PH test paper 1 from making moist and polluting.Lower cover 3 is square.The exit of lower cover 3 is provided with two grooves 10, has two protruding fixture blocks 11 on end cap 9, and fixture block 11 embeds in groove 10 end cap 9 and lower cover 3 are linked closely mutually.Make housing 2 in closed state, reduce circulation of air, improved 1 resting period of PH test paper.End cap 9 is connected by rope 14 with housing 2.Rope 14 one end tie up on housing 2, and the other end ties up on end cap 9, and when opening end cap 9 use, end cap 9 hangs on housing 2 by rope 14, prevents from dropping loseing.
First, PH test paper 1 is inserted in the rotary column 4 in housing 2, PH test paper 1 can make PH test paper 1 rotate around rotary column 4 in the middle of being fixed on housing 2, and one end of PH test paper 1 is drawn between two rollers 8 and passed, and upper cover body 31 and lower cover 3 fasten.When needs are used PH test paper 1, open end cap 9 and pull out PH test paper 1, in the time of obsolete, two protruding fixture blocks 11 on end cap 9 are embedded in groove 10 end cap 9 and lower cover 3 are linked closely mutually.
Embodiment bis-
The present embodiment and embodiment mono-are roughly the same, its difference is to offer on lower cover 3 chute 12 that can hold end cap 9, on end cap 9, have protruding push-and-pull portion 13, lower cover 3 offers through hole and exposes for push-and-pull portion 13, and end cap 9 slides and does to open and close the action of outlet along chute 12.Can slide up and down by the push-and-pull portion 13 of exposing, allow housing 2 carry out one and close and close state, when wanting to take out PH test paper 1, push-and-pull portion 13, toward lower slider, is up slided push-and-pull portion 13 in the time of unwanted.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as PH test paper 1, housing 2, lower cover 3, end cap 9 herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (7)
1. a PH test paper device, comprise PH test paper and the housing with the chamber that can deposit PH test paper, described housing is fastened and is formed by upper cover body and lower cover, the middle part of described lower cover is vertically connected with the rotary column that can be wound around PH test paper, described rotary column can rotate relative to lower cover, in described housing, be also provided with the storage chamber being communicated with chamber, in described storage chamber, deposited drying agent, described housing is provided with the outlet of PH test paper, in the described chamber near outlet, be provided with a pair of roller passing for PH test paper, on described housing, be also connected with the end cap that outlet is sealed.
2. PH test paper device according to claim 1, is characterized in that, the spacing of described two rollers equates with the thickness of PH test paper.
3. PH test paper device according to claim 2, is characterized in that, a sidewall of described storage chamber has bleeder vent and is connected with chamber.
4. PH test paper device according to claim 3, is characterized in that, described lower cover is square.
5. according to the PH test paper device described in claim 1 or 2 or 3 or 4, it is characterized in that, the exit of described lower cover is provided with two grooves, has two protruding fixture blocks on described end cap, and fixture block embeds in groove end cap and lower cover are linked closely mutually.
6. PH test paper device according to claim 5, is characterized in that, described end cap is connected by rope with housing.
7. according to the PH test paper device described in claim 1 or 2 or 3 or 4, it is characterized in that, on described lower cover, offer the chute that can hold end cap, on described end cap, there is protruding push-and-pull portion, described lower cover offers through hole and exposes for push-and-pull portion, and described end cap slides and does to open and close the action exporting along chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283575.4U CN203929652U (en) | 2014-05-29 | 2014-05-29 | A kind of use for laboratory PH test paper device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283575.4U CN203929652U (en) | 2014-05-29 | 2014-05-29 | A kind of use for laboratory PH test paper device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929652U true CN203929652U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420283575.4U Expired - Fee Related CN203929652U (en) | 2014-05-29 | 2014-05-29 | A kind of use for laboratory PH test paper device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203929652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680264A (en) * | 2016-12-22 | 2017-05-17 | 安徽乐金环境科技有限公司 | Formaldehyde testing box |
-
2014
- 2014-05-29 CN CN201420283575.4U patent/CN203929652U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680264A (en) * | 2016-12-22 | 2017-05-17 | 安徽乐金环境科技有限公司 | Formaldehyde testing box |
| CN106680264B (en) * | 2016-12-22 | 2019-10-18 | 安徽乐金环境科技有限公司 | Formaldehyde testing cassete |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150529 |
|
| EXPY | Termination of patent right or utility model |