CN216025002U - U-shaped pipe fixing device - Google Patents
U-shaped pipe fixing device Download PDFInfo
- Publication number
- CN216025002U CN216025002U CN202122735183.XU CN202122735183U CN216025002U CN 216025002 U CN216025002 U CN 216025002U CN 202122735183 U CN202122735183 U CN 202122735183U CN 216025002 U CN216025002 U CN 216025002U
- Authority
- CN
- China
- Prior art keywords
- fixing device
- double
- pipe
- tube fixing
- handle
- 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.)
- Expired - Fee Related
Links
- 238000005452 bending Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical group ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
Images
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a U-shaped pipe fixing device which comprises a double-end pipe plug and a handle, wherein a groove is formed in the side surface of the double-end pipe plug, a convex block is arranged above one end of the handle and inserted into the groove, and a pipe sleeve is arranged at the lower end of the double-end pipe plug; the U-shaped pipe fixing device has good fixing effect, is easy and labor-saving, and is convenient and quick to disassemble and assemble; the device can be operated by hands, is flexible and convenient, can avoid being heated when the U-shaped pipe is heated, simultaneously avoids scalding hands, and improves the safety performance; the device can be used for installing the electrode bars at the same time, so that the experimental space is saved; the device has good air tightness, can collect gas and prevent leakage; the DC interface has good expansibility and can be externally connected with other experimental instruments.
Description
Technical Field
The utility model relates to a fixing device, in particular to a U-shaped pipe fixing device, and belongs to teaching experiment instruments.
Background
In a chemical experiment, the U-shaped pipe is a common instrument, can be used for containing liquid or solid, can be heated at the bottom, has obvious experimental phenomenon when being demonstrated in class, and leaves deep impression for students; however, the U-shaped pipe is not easy to clamp, and is fixed by a common test tube clamp in an experiment, but the U-shaped pipe is easy to fall off in the using process, generally needs larger clamping force or is clamped by a specific clamp, and is inconvenient to operate; when the U-shaped pipe is heated, the clamp positioned above the U-shaped pipe is also heated, so that the clamp is easy to deform and age, and the heat source threatens the safety of an operator; the U-shaped pipe clamp is difficult to be matched with other experimental instruments for simultaneous use, so that gas generated in part of experiments cannot be collected, and the experimental phenomenon is difficult to embody. Obviously, how to reform the existing teaching experiment instrument or develop a special fixing device has become the problem that needs to be solved urgently in the chemistry experiment classroom.
Disclosure of Invention
In order to overcome the existing problems, the U-shaped pipe fixing device is simple in structure, convenient to operate and high in practicability.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a U type pipe fixing device, includes double-end stopcock and handle, the double-end stopcock side is equipped with the recess, and the top of handle one end is equipped with the lug, and in the lug inserted the recess, the double-end stopcock lower extreme was equipped with the pipe box.
Preferably, the handle comprises a connecting piece and an elongated piece, and the connecting piece is detachably connected with the elongated piece.
Preferably, one end of the connecting piece is provided with a round table, one end of the lengthening piece is provided with a round hole, and the round table is inserted into the round hole.
Preferably, the side surface of the circular truncated cone is provided with a positioning key, the side surface of the circular hole is provided with a key groove, and the positioning key is in sliding connection with the key groove.
Preferably, the key slot is L-shaped.
Preferably, the lower end of the double-end pipe plug is provided with an electrode bar mounting hole.
Preferably, the side face of the double-end pipe plug is provided with an air outlet which is communicated to the lower end of the pipe sleeve.
Preferably, an exhaust pipe is arranged on the exhaust port.
Preferably, the upper end of the double-end pipe plug is provided with a DC interface, and the DC interface is connected with the electrode bar mounting hole through a wire.
Preferably, the middle part of the handle is provided with a bending part.
Compared with the prior art, the utility model has the beneficial effects that: the U-shaped pipe has good fixing effect, is easy and labor-saving, and is convenient and quick to disassemble and assemble; the device can be operated by hands, is flexible and convenient, can avoid being heated when the U-shaped pipe is heated, simultaneously avoids scalding hands, and improves the safety performance; the device can be used for installing the electrode bars at the same time, so that the experimental space is saved; the device has good air tightness, can collect gas and prevent leakage; the DC interface has good expansibility and can be externally connected with other experimental instruments.
Drawings
The utility model is further illustrated by the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an exploded view of the present invention in use.
Fig. 3 is a schematic view of the structure of the connector of the present invention.
Figure 4 is a schematic view of the construction of the extension of the present invention.
Fig. 5 is a working principle diagram of the present invention.
Fig. 6 is a state diagram of the use of the present invention.
The names corresponding to the marks in the drawings are as follows: 1-double-ended pipe plug, 101-DC interface, 102-exhaust port, 103-pipe sleeve, 104-electrode rod mounting hole, 105-groove, 2-connecting piece, 201-lug, 202-round platform, 203-positioning key, 204-bending part, 3-lengthening piece, 301-round hole, 302-key groove, 4-exhaust pipe, 5-electrode rod, 6-U-shaped pipe, 7-electrolyte solution, 8-gas channel and 9-alcohol lamp.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, fall within the protection scope of the present invention.
As shown in fig. 1-4: a U-shaped pipe fixing device comprises a double-head pipe plug 1 and a handle, wherein a groove 105 is formed in the side face of the double-head pipe plug 1, a convex block 201 is arranged above one end of the handle, the convex block 201 is inserted into the groove 105, and a pipe sleeve 103 is arranged at the lower end of the double-head pipe plug 1 and used for inserting a U-shaped pipe 6; the middle part of the handle is provided with a bending part 204 which is convenient for adjusting the angle between the U-shaped pipe 6 and the vertical surface; the handle comprises a connecting piece 2 and an elongated piece 3, and the connecting piece 2 is detachably connected with the elongated piece 3; one end of the connecting piece 2 is provided with a round table 202, one end of the lengthening piece 3 is provided with a round hole 301, and the round table 202 is inserted into the round hole 301; the side surface of the circular truncated cone 202 is provided with a positioning key 203, the side surface of the circular hole 301 is provided with a key groove 302, the key groove 302 is L-shaped, the positioning key 203 is in sliding connection with the key groove 302, and the connecting piece 2 is inserted into the lengthening piece 3 and then rotated to lock the two; the lower end of the double-end pipe plug 1 is provided with an electrode bar mounting hole 104 into which an electrode bar 5 can be inserted; the side surface of the double-end pipe plug 1 is provided with an air outlet 102, and the air outlet 102 is communicated to the lower end of a pipe sleeve 103; the exhaust port 102 is provided with an exhaust pipe 4 which can lead out gas; the upper end of the double-end pipe plug 1 is provided with a DC interface 101, the DC interface 101 is connected with the electrode rod mounting hole 104 through a lead, and the electrode rod 5 can be connected with external equipment through the DC interface 101.
In a chemical classroom, a teacher often needs to demonstrate liquid electrolysis experiments to students, current is passed through the electrolyte solution 7, and the experiment phenomenon is visually shown to the students through oxidation and reduction reactions caused on a cathode and an anode, so that the students can better master knowledge points, and the electrolysis of a saturated sodium chloride solution is one of common experiments.
In the experiment of electrolyzing saturated sodium chloride solution, the saturated sodium chloride solution is dripped into a U-shaped pipe 6 to a position 3cm below a pipe orifice, two phenolphthalein test solutions are dripped into two pipe orifices respectively, a double-end pipe plug 1 with two carbon electrode rods 5 is arranged, an external low-voltage direct-current power supply is connected through a DC interface 101, the generation of a large amount of gas near the electrode rods 5 is observed, and the cathode and the anode can be judged according to the current direction.
As shown in fig. 5: the gas generated in the U-shaped pipe 6 by the electrolyte solution 7 is exhausted from the exhaust pipe 4 through a gas channel 8; the design of blast pipe 4 is convenient for cooperate little test tube, collects the gas that the experiment produced. In the cathode area, the solution near the electrode bar turns red, a large number of bubbles emerge, a small test tube is used for collecting gas at the outlet of the exhaust pipe, the opening of the test tube is close to the flame of the alcohol burner, and an explosion sound is produced, which indicates that sodium hydroxide and hydrogen are produced in the cathode area; in the anode area, a large number of bubbles are emitted near the electrode bar, and the test paper turns blue by using wet potassium iodide starch test paper, which indicates that chlorine is generated in the anode area. The experimental principle is as follows:
anodic region 2Cl--2e＝Cl2↑
Cathode region 2H++2e＝H2↑
And (3) total reaction: 2NaCl +2H2O2 NaOH + H2↑+Cl2↑
As shown in fig. 6: when the U-shaped pipe 6 needs to be heated, the handle can be adjusted conveniently by the bending part 204 in the middle of the handle, the U-shaped pipe 6 can be inclined, the alcohol lamp 9 and the fixing device are staggered in the vertical direction, the fixing device is prevented from being damaged or an operator is prevented from being burnt by the heat of the alcohol lamp 9, and the safety is greatly improved.
Besides, the utility model can be used for electroplating experiments and galvanic cell experiments, and has wide application range, good experiment effect and obvious phenomenon.
Claims (10)
1. The utility model provides a U type pipe fixing device, includes double-end stopcock and handle, its characterized in that: the double-end stopcock side is equipped with the recess, and the top of handle one end is equipped with the lug, and in the lug inserted the recess, the double-end stopcock lower extreme was equipped with the pipe box.
2. A U-tube fixing device according to claim 1, wherein: the handle comprises a connecting piece and an elongated piece, and the connecting piece is detachably connected with the elongated piece.
3. A U-tube fixing device according to claim 2, wherein: one end of the connecting piece is provided with a round table, one end of the lengthening piece is provided with a round hole, and the round table is inserted into the round hole.
4. A U-tube fixing device according to claim 3, wherein: the side surface of the circular truncated cone is provided with a positioning key, the side surface of the round hole is provided with a key groove, and the positioning key is in sliding connection with the key groove.
5. A U-tube fixing device in accordance with claim 4 wherein: the key groove is L-shaped.
6. A U-tube fixing device according to claim 1, wherein: the lower end of the double-end pipe plug is provided with an electrode bar mounting hole.
7. A U-tube fixing device according to claim 1, wherein: the double-end pipe plug side is equipped with the gas vent, the gas vent communicates to the pipe box lower extreme.
8. A U-tube fixing device in accordance with claim 7 wherein: and an exhaust pipe is arranged on the exhaust port.
9. A U-tube fixing device in accordance with claim 6 wherein: the double-end stopcock upper end is equipped with the DC interface, the DC interface passes through the wire with the electrode bar mounting hole and is connected.
10. A U-tube fixing device according to claim 1, wherein: the middle part of the handle is provided with a bending part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122735183.XU CN216025002U (en) | 2021-11-09 | 2021-11-09 | U-shaped pipe fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122735183.XU CN216025002U (en) | 2021-11-09 | 2021-11-09 | U-shaped pipe fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216025002U true CN216025002U (en) | 2022-03-15 |
Family
ID=80615142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122735183.XU Expired - Fee Related CN216025002U (en) | 2021-11-09 | 2021-11-09 | U-shaped pipe fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216025002U (en) |
-
2021
- 2021-11-09 CN CN202122735183.XU patent/CN216025002U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220315 |