CN205330908U - Test tube air exhaust device is used in middle school chemistry teaching - Google Patents
Test tube air exhaust device is used in middle school chemistry teaching Download PDFInfo
- Publication number
- CN205330908U CN205330908U CN201620092145.3U CN201620092145U CN205330908U CN 205330908 U CN205330908 U CN 205330908U CN 201620092145 U CN201620092145 U CN 201620092145U CN 205330908 U CN205330908 U CN 205330908U
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- China
- Prior art keywords
- piston
- suction cup
- jar
- bleeding
- piston rod
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Abstract
The utility model discloses a test tube air exhaust device is used in middle school chemistry teaching, including bleeding the jar, the inside of bleeding jar is equipped with the piston, the lateral wall of piston is equipped with first sealing washer, the upper end of piston is connected with the piston rod, and the piston rod runs through and bleed jar and extend to the top of bleeding jar, the upper end of bleeding jar is equipped with stopper and blow vent, the stopper is installed around the piston rod, the one end that the piston was kept away from to the piston rod is equipped with the horizontal pole, it is sealed that the blow vent passes through the rubber buffer, the side of bleeding jar is equipped with the handle, the lower extreme of bleeding jar is equipped with vent pipe, vent pipe's lateral wall is equipped with the connecting block, the one end that vent pipe kept away from the jar of bleeding is equipped with the exhaust tube, the lateral wall of exhaust tube is equipped with the fixed block, fixed block and connecting block pass through fixing device to be connected, and is equipped with the second sealing washer between fixed block and the connecting block. The utility model discloses, it is fast to have air pumping speed, labour saving and time saving's characteristics.
Description
Technical field
This utility model relates to air extractor technical field, particularly relates to a kind of high school chemistry teaching test tube air extractor。
Background technology
In high school chemistry teaching process, marching into the arena needs test tube is bled process, better to test, existing air extractor carries inconvenience, when bleeding, it is not easy to carry out associative operation fast and effectively, relatively complicated, we have proposed a kind of high school chemistry teaching test tube air extractor for this, be used for solving the problems referred to above。
Utility model content
The purpose of this utility model is to solve the shortcoming existed in prior art, and a kind of high school chemistry teaching test tube air extractor proposed。
To achieve these goals, this utility model adopts the technical scheme that
A kind of high school chemistry teaching test tube air extractor, including suction cup, the inside of described suction cup is provided with piston, the sidewall of described piston is provided with the first sealing ring, the upper end of described piston is connected to piston rod, and piston rod runs through suction cup and extends to the top of suction cup, the upper end of described suction cup is provided with limited block and blow vent, described limited block is arranged on the surrounding of piston rod, described piston rod is provided with cross bar away from one end of piston, described blow vent passes through rubber stopper seal, the side of described suction cup is provided with handle, the lower end of described suction cup is provided with breather line, the sidewall of described breather line is provided with contiguous block, described breather line is provided with exhaust tube away from one end of suction cup, the sidewall of described exhaust tube is provided with fixed block, described fixed block and contiguous block are connected by fixing device, and between fixed block and contiguous block, it is provided with the second sealing ring, the sidewall of described exhaust tube is coated with rubber ring。
Preferably, described suction cup and handle are formed in one。
Preferably, described fixing device is lock-screw。
Preferably, the surface of described cross bar is provided with anti-slip veins。
In this utility model, when bleeding, exhaust tube is directed at the mouth of pipe of test tube, rubber ring on exhaust tube sidewall can well prevent gas leakage, the exhaust tube that thickness is different can be changed by fixing device, convenient and swift, piston rod is pulled by cross bar, and then drive piston upwards, just invisible spectro air can be taken away, the first sealing ring on piston can effectively prevent gas leakage, can be taken away by rubber stopper and allow to more be pulled by piston easily when bleeding, and this utility model is simple to operate, there is the speed of evacuation fast, time saving and energy saving feature。
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of high school chemistry teaching test tube air extractor that the utility model proposes。
In figure: 1 suction cup, 2 handles, 3 first sealing rings, 4 pistons, 5 breather lines, 6 exhaust tubes, 7 rubber rings, 8 fixed blocks, 9 second sealing rings, 10 contiguous blocks, 11 fixing device, 12 piston rods, 13 cross bars, 14 limited blocks, 15 rubber stoppers。
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments。
With reference to Fig. 1, a kind of high school chemistry teaching test tube air extractor, including suction cup 1, the inside of suction cup 1 is provided with piston 4, the sidewall of piston 4 is provided with the first sealing ring 3, the upper end of piston 4 is connected to piston rod 12, and piston rod 12 runs through suction cup 1 and extends to the top of suction cup 1, the upper end of suction cup 1 is provided with limited block 14 and blow vent, limited block 14 is arranged on the surrounding of piston rod 12, piston rod 12 is provided with cross bar 13 away from one end of piston 4, piston rod 12 is pulled by cross bar 13, and then drive piston 4 to move upward, blow vent is sealed by rubber stopper 15, rubber stopper 15 can be taken away when bleeding and allow to be pulled by piston 4 more easily, the side of suction cup 1 is provided with handle 2, the lower end of suction cup 1 is provided with breather line 5, the sidewall of breather line 5 is provided with contiguous block 10, breather line 5 is provided with exhaust tube 6 away from one end of suction cup 1, the sidewall of exhaust tube 6 is provided with fixed block 8, fixed block 8 and contiguous block 10 are connected by fixing device 11, the different exhaust tube of thickness 6 can be changed by fixing device 11, and between fixed block 8 and contiguous block 10, it is provided with the second sealing ring 9, the sidewall of exhaust tube 6 is coated with rubber ring 7, rubber ring 7 leaks gas when can well prevent from bleeding。
In this utility model, suction cup 1 and handle 2 are formed in one。Fixing device 11 is lock-screw。The surface of cross bar 13 is provided with anti-slip veins, the anti-sliding stop when pulling cross bar 13。
In this utility model, when bleeding, exhaust tube 6 is directed at the mouth of pipe of test tube, rubber ring 7 on exhaust tube 6 sidewall can well prevent gas leakage, the different exhaust tube of thickness 6 can be changed by fixing device 11, convenient and swift, pull piston rod 12 by cross bar 13, and then drive piston 4 to move upward, just can being taken away by invisible spectro air, the first sealing ring 3 on piston 4 can effectively prevent gas leakage, can be taken away by rubber stopper 15 and allow to be pulled by piston 4 more easily when bleeding。
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; conceive according to the technical solution of the utility model and utility model thereof and be equal to replacement or change, all should be encompassed within protection domain of the present utility model。
Claims (4)
1. a high school chemistry teaching test tube air extractor, including suction cup (1), it is characterized in that, the inside of described suction cup (1) is provided with piston (4), the sidewall of described piston (4) is provided with the first sealing ring (3), the upper end of described piston (4) is connected to piston rod (12), and piston rod (12) runs through suction cup (1) and extends to the top of suction cup (1), the upper end of described suction cup (1) is provided with limited block (14) and blow vent, described limited block (14) is arranged on the surrounding of piston rod (12), described piston rod (12) is provided with cross bar (13) away from one end of piston (4), described blow vent is sealed by rubber stopper (15), the side of described suction cup (1) is provided with handle (2), the lower end of described suction cup (1) is provided with breather line (5), the sidewall of described breather line (5) is provided with contiguous block (10), described breather line (5) is provided with exhaust tube (6) away from one end of suction cup (1), the sidewall of described exhaust tube (6) is provided with fixed block (8), described fixed block (8) and contiguous block (10) are connected by fixing device (11), and between fixed block (8) and contiguous block (10), it is provided with the second sealing ring (9), the sidewall of described exhaust tube (6) is coated with rubber ring (7)。
2. a kind of high school chemistry teaching test tube air extractor according to claim 1, it is characterised in that described suction cup (1) and handle (2) are formed in one。
3. a kind of high school chemistry teaching test tube air extractor according to claim 1, it is characterised in that described fixing device (11) is lock-screw。
4. a kind of high school chemistry teaching test tube air extractor according to claim 1, it is characterised in that the surface of described cross bar (13) is provided with anti-slip veins。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620092145.3U CN205330908U (en) | 2016-01-30 | 2016-01-30 | Test tube air exhaust device is used in middle school chemistry teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620092145.3U CN205330908U (en) | 2016-01-30 | 2016-01-30 | Test tube air exhaust device is used in middle school chemistry teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205330908U true CN205330908U (en) | 2016-06-22 |
Family
ID=56317201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620092145.3U Expired - Fee Related CN205330908U (en) | 2016-01-30 | 2016-01-30 | Test tube air exhaust device is used in middle school chemistry teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205330908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108902775A (en) * | 2018-06-08 | 2018-11-30 | 安徽润宝食品有限公司 | A kind of spicy beef Jar used for making with automatic stirring function |
-
2016
- 2016-01-30 CN CN201620092145.3U patent/CN205330908U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108902775A (en) * | 2018-06-08 | 2018-11-30 | 安徽润宝食品有限公司 | A kind of spicy beef Jar used for making with automatic stirring function |
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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: 20160622 Termination date: 20170130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |