CN204602165U - A kind of chemical reaction Simple negative-pressure pressurizer - Google Patents
A kind of chemical reaction Simple negative-pressure pressurizer Download PDFInfo
- Publication number
- CN204602165U CN204602165U CN201520272482.6U CN201520272482U CN204602165U CN 204602165 U CN204602165 U CN 204602165U CN 201520272482 U CN201520272482 U CN 201520272482U CN 204602165 U CN204602165 U CN 204602165U
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- shell
- chemical reaction
- seal cover
- pore
- connecting rod
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Abstract
The utility model provides a kind of chemical reaction Simple negative-pressure pressurizer, the seal cover comprising closed chemical reaction container and the air valve be communicated with chemical reaction container, air valve is perpendicular to seal cover and be connected with seal cover, the diameter of seal cover and the diameter of chemical reaction container opening match, the inner side of seal cover is provided with sealing ring, air valve comprises shell, be positioned at the plug above shell, be arranged in sealing cone and the connecting rod of shell, plug is connected by connecting rod with sealing cone, shell is hollow columnar and two ends all offer pore, connecting rod is arranged in the pore of shell upper end and its upper end is positioned at outside shell, connecting rod can in the pore of shell upper end moving axially along shell, the bottom of sealing cone conically and maximum gauge is greater than the aperture of shell lower end pore, the chemical reaction Simple negative-pressure pressurizer that the utility model provides can be common on the chemical reaction containers such as beaker, flask, conical flask, and its structure is simple, and easy to operate, pressurize is effective.
Description
Technical field
The utility model relates to chemical experiment apparatus, is specifically related to a kind of negative pressure pressurizer for chemical reaction.
Background technology
At present, carry out negative reaction in laboratory and generally use vacuum pump evacuation, pressurize reaction in vacuum tank or sealed reactor subsequently, the heavy and expensive price of the instrument of use; Partial chemical reaction in have gas to produce, then chemical reaction container in the reaction air pressure can rise, reduce reaction rate, for ensure react carry out to forward reaction, need again to vacuumize, complicated operation, experimental cost are higher.
Summary of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, and a kind of chemical reaction Simple negative-pressure pressurizer is provided, this device can be common on the chemical reaction containers such as beaker, flask, conical flask, utilize the internal negative pressure sealing chemical reaction container of chemical reaction container, pressurize is effective.
Realizing the technical scheme that the utility model object adopts is, a kind of chemical reaction Simple negative-pressure pressurizer, at least comprise the seal cover for closed chemical reaction container, the air valve be communicated with chemical reaction container is fixed with in seal cover, air valve comprises shell, be arranged in sealing cone and the connecting rod of shell, shell is hollow columnar, the two ends of shell all offer pore, connecting rod is arranged in the pore of shell upper end and its upper end is positioned at outside shell, connecting rod can in the pore of shell upper end moving axially along shell, sealing cone is fixed on the lower end of connecting rod, the bottom of described sealing cone conically, the maximum gauge of its conical lower is greater than the aperture of shell lower end pore.
The diameter of described seal cover and the diameter of chemical reaction container opening match, and the inner side of seal cover is fixed with sealing ring.
The upper end of connecting rod is fixed with plug, and described plug is spherical and is positioned at above shell, and the diameter of plug is greater than the aperture of shell upper end pore.
The inwall of shell upper end pore openings is evenly fixed with more than 2 limited posts.
The inwall of shell is axially evenly fixed with more than 2 leads along inwall, the top of sealing cone be cylindric and with the outer surface matched in clearance of lead.
Air valve is perpendicular to seal cover and be connected with seal cover, and the two ends of shell are all positioned at outside seal cover lid.
As shown from the above technical solution, in the negative pressure pressurizer that the utility model provides, seal cover is used for closing chemical reaction container, and air valve is used for keeping and regulating chemical reaction container internal negative pressure; Because the diameter of seal cover and the diameter of chemical reaction container opening match, therefore seal cover can closely be set on the opening of chemical reaction container, when chemical reaction container inside is negative pressure, seal cover is stably fixed on chemical reaction container by chemical reaction container inside and outside differential pressure, sealing ring sealing chemical reaction container opening fixing inside seal cover and the hole of seal cover inwall, avoid air to enter; Air valve is communicated with chemical reaction container inside and outside air by two pores that shell is offered, when the pore of closure lower end is bored in the sealing of air valve inside, chemical reaction container internal pressure keeps constant, when chemical reaction container inside is negative pressure, in chemical reaction container, negative-pressure adsorption sealing cone, makes the pore sealing cone closure lower end; Mobile link bar can change the gap between sealing cone and shell lower end pore, and then regulates chemical reaction container internal pressure.
The spherical plug convenient operation person that connecting rod upper end is fixed grips connecting rod; During mobile link bar, limited post fixing on outer casing inner wall can avoid sealing cone blocking to hold pore beyond the Great Wall, is convenient to regulate chemical reaction container internal pressure; Outer casing inner wall is fixed with lead, and the cylindric top of sealing cone and the outer surface matched in clearance of lead, lead ensure that sealing cone mobile without hindrance while artificially can touch in anti-locking apparatus pressure maintaining period by mistake cause sealing cone to close to lose efficacy, and caused chemical reaction container back pressure.
Compared with prior art, the chemical reaction Simple negative-pressure pressurizer that the utility model provides can be common on the chemical reaction containers such as beaker, flask, conical flask, and its structure is simple, and easy to operate, pressurize is effective.
Accompanying drawing explanation
The structural representation of the negative pressure pressurizer that Fig. 1 provides for the utility model.
Fig. 2 is the use schematic diagram of negative pressure pressurizer.
Wherein, 1-seal cover, 2-shell, 3-seals cone, 4-connecting rod, 5-plug, 6-lead, 7-limited post, 8-pore, 9-sealing ring, 10-air valve, 11-chemical reaction container, 12-pump bowl, 13-gum cover pipe.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is illustrated in detail.
The chemical reaction Simple negative-pressure pressurizer that the utility model provides, its structure as shown in Figure 1, comprise for the seal cover 1 of closed chemical reaction container and the air valve that is communicated with chemical reaction container, air valve is perpendicular to seal cover and be connected with seal cover, the diameter of seal cover and the diameter of chemical reaction container opening match, and the inner side of seal cover is fixed with sealing ring 9, described air valve comprises shell 2, be arranged in the sealing cone 3 of shell, be positioned at spherical plug 5 above shell and be connected plug and seal the connecting rod 4 of boring, described shell is hollow columnar, the two ends of shell are all positioned at outside seal cover lid, the two ends of shell all offer pore 8, the aperture of shell upper end pore is less than the diameter of plug, connecting rod is arranged in the pore of shell upper end and its upper end is positioned at outside shell, connecting rod can in the pore of shell upper end moving axially along shell, the top of described sealing cone is cylindric, bottom conically, the bottom of sealing cone adopts silica gel, plastics, rubber-like elastic material is made, the maximum gauge of the bottom of sealing cone is greater than the aperture of shell lower end pore, the inwall of shell upper end pore openings is evenly fixed with more than 2 limited posts 7, the inwall of shell is axially evenly fixed with more than 2 leads 6 along inwall, the top of sealing cone and the outer surface matched in clearance of lead.
During actual use as shown in Figure 2, seal cover 1 is closely set on the opening of chemical reaction container 11 (selecting flask in this example), sheathed gum cover pipe 13 on the valve of pump bowl 12, the diameter of gum cover pipe is advisable with the valve of tight sheathed pump bowl and air valve 10, twitch the piston of pump bowl, the partial air of discharging in chemical reaction container 11 makes its inner formation negative pressure, seal cover is stably fixed on chemical reaction container by chemical reaction container inside and outside differential pressure, sealing ring 9 fixing inside seal cover seals the hole of chemical reaction container opening and seal cover inwall, air is avoided to enter, air valve 10 is for keeping and regulating chemical reaction container internal negative pressure, air valve is communicated with chemical reaction container inside and outside air by two pores that shell is offered, when the pore of closure lower end is bored in the sealing of air valve inside, chemical reaction container internal pressure keeps constant, when chemical reaction container inside is negative pressure, in chemical reaction container, negative-pressure adsorption sealing cone, makes the pore sealing cone closure lower end.
If have its gas to generate in reaction, the air pressure in reaction vessel rises thereupon, twitches the partial air in the piston discharge chemical reaction container of pump bowl, can maintain constant pressure in chemical reaction container, ensure that reaction is carried out to forward reaction; After having reacted, remove pump bowl and gum cover pipe, grip the outside mobile link bar of plug, produce comparatively wide arc gap between sealing cone and shell lower end pore, air enters in chemical reaction container from pore, carries out chemical reaction container back pressure.
Claims (6)
1. a chemical reaction Simple negative-pressure pressurizer, at least comprise the seal cover for closed chemical reaction container, it is characterized in that: in seal cover, be fixed with the air valve be communicated with chemical reaction container, air valve comprises shell, be arranged in sealing cone and the connecting rod of shell, shell is hollow columnar, the two ends of shell all offer pore, connecting rod is arranged in the pore of shell upper end and its upper end is positioned at outside shell, connecting rod can in the pore of shell upper end moving axially along shell, sealing cone is fixed on the lower end of connecting rod, the bottom of described sealing cone conically, the maximum gauge of its conical lower is greater than the aperture of shell lower end pore.
2. chemical reaction Simple negative-pressure pressurizer according to claim 1, is characterized in that: the diameter of described seal cover and the diameter of chemical reaction container opening match, and the inner side of seal cover is fixed with sealing ring.
3. chemical reaction Simple negative-pressure pressurizer according to claim 1, is characterized in that: the upper end of connecting rod is fixed with plug, and described plug is spherical and is positioned at above shell, and the diameter of plug is greater than the aperture of shell upper end pore.
4. chemical reaction Simple negative-pressure pressurizer according to claim 1, is characterized in that: the inwall of shell upper end pore openings is evenly fixed with more than 2 limited posts.
5. chemical reaction Simple negative-pressure pressurizer according to claim 1, is characterized in that: the inwall of shell is axially evenly fixed with more than 2 leads along inwall, the top of sealing cone be cylindric and with the outer surface matched in clearance of lead.
6. chemical reaction Simple negative-pressure pressurizer according to claim 1, is characterized in that: air valve is perpendicular to seal cover and be connected with seal cover, and the two ends of shell are all positioned at outside seal cover lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272482.6U CN204602165U (en) | 2015-04-28 | 2015-04-28 | A kind of chemical reaction Simple negative-pressure pressurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272482.6U CN204602165U (en) | 2015-04-28 | 2015-04-28 | A kind of chemical reaction Simple negative-pressure pressurizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204602165U true CN204602165U (en) | 2015-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520272482.6U Expired - Fee Related CN204602165U (en) | 2015-04-28 | 2015-04-28 | A kind of chemical reaction Simple negative-pressure pressurizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204602165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388189A (en) * | 2015-10-15 | 2016-03-09 | 思澜科技（成都）有限公司 | Manual sucking type auxiliary utensil for biological tissue detection |
| CN109663622A (en) * | 2019-01-29 | 2019-04-23 | 江子昊 | A kind of chemical experiment Anti-splash teaching aid |
-
2015
- 2015-04-28 CN CN201520272482.6U patent/CN204602165U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388189A (en) * | 2015-10-15 | 2016-03-09 | 思澜科技（成都）有限公司 | Manual sucking type auxiliary utensil for biological tissue detection |
| CN105388189B (en) * | 2015-10-15 | 2019-07-09 | 思澜科技（成都）有限公司 | Manual absorption type for biological tissue's detection assists vessel |
| CN109663622A (en) * | 2019-01-29 | 2019-04-23 | 江子昊 | A kind of chemical experiment Anti-splash teaching aid |
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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: 20150902 Termination date: 20160428 |