CN214051699U - Nitrogen connecting structure for three-neck flask reaction - Google Patents
Nitrogen connecting structure for three-neck flask reaction Download PDFInfo
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- CN214051699U CN214051699U CN202023157521.8U CN202023157521U CN214051699U CN 214051699 U CN214051699 U CN 214051699U CN 202023157521 U CN202023157521 U CN 202023157521U CN 214051699 U CN214051699 U CN 214051699U
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Abstract
The utility model discloses a nitrogen gas switch-on structure of three-neck flask reaction relates to three-neck flask connecting device field, has solved the problem that three-neck flask nitrogen gas intercommunication structure leaked gas easily among the prior art, and its technical essential is: the fixing device comprises a rubber plug and a trachea fixing component, wherein the rubber plug is frustum-shaped, a communicating hole is formed in the rubber plug, the rubber plug is fixedly connected with the trachea fixing component, a trachea fixing pipe is arranged on the trachea fixing component, a sealing pipe is arranged on the trachea fixing pipe, a sealing head is also arranged on the trachea fixing pipe, the sealing head is fixedly connected with the trachea fixing pipe, a fastening cap is also fixedly connected onto the trachea fixing pipe, a second conical hole is formed in the fastening cap, a first conical thread is arranged in the second conical hole, the fastening cap is connected with a limiting sleeve through a thread, one end, sleeved in the fastening cap, of the limiting sleeve is frustum-shaped, and a second conical thread is arranged on the limiting sleeve; the utility model discloses the leakproofness is good, can bear great pressure simultaneously.
Description
Technical Field
The utility model relates to a three-neck flask connecting device field especially relates to a nitrogen gas switch-on structure of three-neck flask reaction.
Background
In the teaching process of different stages and the fields of advanced education experiments, particularly chemistry, a three-neck flask is a chemical glass instrument which is very common and widely used, particularly common and common in organic chemistry experiments.
In some chemical experiments, nitrogen needs to be introduced into a three-neck flask, a wooden plug is adopted to plug the three-neck flask when the three-neck flask is introduced with the nitrogen in the prior art, a nitrogen pipeline is inserted into the wooden plug, the wooden plug has a soft structure, an anti-skid layer is arranged at the mouth of the three-neck flask, the anti-skid layer is a frosted layer, the sealing performance of the anti-skid layer is weak, and the problem of air leakage of an electric appliance communication device used for the three-neck flask in the prior art is easy to occur, so that a nitrogen connection structure for reaction of the three-neck flask is provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to above-mentioned defect, a nitrogen gas switch-on structure of three-neck flask reaction is provided to solve the problem of the easy gas leakage of three-neck flask nitrogen gas intercommunication structure among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme:
a nitrogen gas switch-on structure for reaction of a three-mouth flask comprises a rubber plug and a trachea fixing component, wherein the rubber plug is frustum-shaped, a communication hole arranged along a central line is formed in the rubber plug, the rubber plug and the trachea fixing component are fixedly connected, the trachea fixing component is circular, a trachea fixing pipe is arranged on the trachea fixing component, the trachea fixing pipe is in a cylindrical shape with two ends provided with openings, one end of the trachea fixing pipe, which is far away from the rubber plug, is fixedly connected with a sealing pipe, the sealing pipe is a conical rubber pipe, one end of the trachea fixing pipe, which is far away from the rubber plug, is also provided with a sealing head, a first conical hole is formed in the sealing head, the sealing head is fixedly connected with the trachea fixing pipe, a fastening cap is fixedly connected onto the trachea fixing pipe, the fastening cap is in a cylindrical shape with one end provided with an opening, a second conical hole is formed in the fastening cap, a first conical thread is formed in the second conical hole, and the fastening cap is connected with a limiting sleeve through a thread, the limiting sleeve is in a cylindrical shape with openings at two ends, one end of the limiting sleeve, which is arranged in the fastening cap, is in a frustum shape, and one end of the limiting sleeve, which is arranged in the fastening cap, is provided with a second taper thread.
As a further scheme of the utility model, the one end that the rubber buffer was kept away from to the fixed pipe of trachea is equipped with the external screw thread, be equipped with the internal thread in the sealed head, and sealed head is the counter bore.
As a further aspect of the present invention, the trachea fixing tube and the sealing tube are fixedly connected in an adhesive manner.
As the utility model discloses further scheme, the one end of stop collar is the toper, and the other end of stop collar is straight cylindric, and the stop collar is the rubber tube, is equipped with at least two sets of spacing grooves on the stop collar, and the axis equipartition of spacing groove around the stop collar, spacing inslot fixedly connected with spacing, the bar of spacing for having the bent angle, spacing is hard material, second cone screw thread is established on spacing.
As a further aspect of the present invention, the position-limiting strip is fixedly connected to the position-limiting sleeve by gluing.
To sum up, compared with the prior art, the utility model has the following beneficial effects:
the utility model discloses a stop collar fastening is on three-mouth flask with the locking cap, compresses tightly the rubber buffer at three-mouth flask's oral area through the locking cap simultaneously to through sealed nitrogen gas jar of sealed head and rubber buffer, for prior art, the utility model discloses the leakproofness is good, can bear great pressure simultaneously.
Drawings
FIG. 1 is a schematic diagram showing a nitrogen-passing structure of a three-necked flask reaction.
FIG. 2 is a schematic diagram of a structure of a limiting component in a nitrogen connection structure of a three-neck flask reaction.
FIG. 3 is a schematic diagram of a stop collar in a nitrogen-connection structure for a three-neck flask reaction.
FIG. 4 is a schematic diagram showing the structure of a stopper in a nitrogen-gas communication structure for a three-necked flask reaction.
Reference numerals: 1-rubber plug, 11-intercommunicating hole, 2-air pipe fixing component, 21-air pipe fixing pipe, 3-sealing pipe, 4-sealing head, 5-limiting sleeve, 51-limiting groove, 6-fastening cap and 7-limiting strip.
Detailed Description
The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Example 1
Shown by figure 1, a nitrogen gas switch-on structure of three-necked flask reaction, including rubber buffer 1 and the fixed subassembly 2 of trachea, rubber buffer 1 is frustum shape, is equipped with the intercommunicating pore 11 that sets up along the central line on rubber buffer 1, and rubber buffer 1 and the fixed subassembly 2 fixed connection of trachea, the fixed subassembly 2 of trachea is ring shape, is equipped with the fixed pipe 21 of trachea on the fixed subassembly 2 of trachea, and the fixed pipe 21 of trachea is equipped with open-ended tube-shape for both ends, and the fixed pipe 21 of trachea is kept away from the one end fixedly connected with sealing tube 3 of rubber buffer 1, sealing tube 3 is the taper rubber tube, and the fixed pipe 21 of trachea keeps away from the one end of rubber buffer 1 and still is equipped with sealing head 4, is equipped with first bell mouth in the sealing head 4, and sealing head 4 and the fixed pipe 21 fixed connection of trachea, still fixedly connected with fastening cap 6 on the fixed pipe 21 of trachea, fastening cap 6 is equipped with open-ended tube-shape hole for one end, is equipped with the second toper in the fastening cap 6, a first taper thread is arranged in the second taper hole, the fastening cap 6 is connected with a limiting sleeve 5 through a thread, the limiting sleeve 5 is in a cylindrical shape with openings at two ends, one end of the limiting sleeve 5 arranged in the fastening cap 6 is in a frustum shape, and one end of the limiting sleeve 5 arranged in the fastening cap 6 is provided with a second taper thread;
when the three-mouth flask is used, nitrogen is inserted into the air pipe fixing pipe 21, the sealing head 4 is screwed, the first taper hole in the sealing head 4 extrudes the sealing pipe 3, the sealing pipe 3 extrudes the sealing pipe 3 onto the outer wall of the nitrogen pipe, the sealing pipe 3 seals the outer wall of the nitrogen pipe, the limiting sleeve 5 is sleeved at the mouth of the three-mouth flask, the fastening cap 6 is rotated onto the limiting sleeve 5, at the moment, the rubber plug 1 is inserted into the three-mouth flask, after the fastening cap 6 is screwed, the fastening cap 6 extrudes the limiting sleeve 5, so that the limiting sleeve 5 clamps the three-mouth flask, the fastening cap 6 presses the rubber plug 1 at the mouth of the three-mouth flask in the process of screwing the limiting sleeve 5, at the moment, the rubber plug 1 is attached to the mouth of the three-mouth flask, and the sealing of the three-mouth flask is completed;
in some examples, the rubber plug 1 and the air tube fixing component 2 are fixedly connected by means of rivets, so that the rubber plug 1 and the air tube fixing component 2 can be prevented from rotating relative to each other, and the air tube fixing tube 21 and the fastening cap 6 are fixedly connected by means of welding;
the air pipe fixing tube 21 and the sealing tube 3 are fixedly connected in an adhesive mode; the sealing tube 3 is made of silica gel;
the one end that the rubber buffer 1 was kept away from to fixed pipe 21 of trachea is equipped with the external screw thread, be equipped with the internal thread in the sealed head 4, and sealed head 4 is the counter bore, and when sealed head 4 screwed on fixed pipe 21 of trachea, first bell mouth in 41 can compress tightly sealed tube 3 on the nitrogen gas pipe.
Example 2
Shown by figure 1, a nitrogen gas switch-on structure of three-necked flask reaction, including rubber buffer 1 and the fixed subassembly 2 of trachea, rubber buffer 1 is frustum shape, is equipped with the intercommunicating pore 11 that sets up along the central line on rubber buffer 1, and rubber buffer 1 and the fixed subassembly 2 fixed connection of trachea, the fixed subassembly 2 of trachea is ring shape, is equipped with the fixed pipe 21 of trachea on the fixed subassembly 2 of trachea, and the fixed pipe 21 of trachea is equipped with open-ended tube-shape for both ends, and the fixed pipe 21 of trachea is kept away from the one end fixedly connected with sealing tube 3 of rubber buffer 1, sealing tube 3 is the taper rubber tube, and the fixed pipe 21 of trachea keeps away from the one end of rubber buffer 1 and still is equipped with sealing head 4, is equipped with first bell mouth in the sealing head 4, and sealing head 4 and the fixed pipe 21 fixed connection of trachea, still fixedly connected with fastening cap 6 on the fixed pipe 21 of trachea, fastening cap 6 is equipped with open-ended tube-shape hole for one end, is equipped with the second toper in the fastening cap 6, a first taper thread is arranged in the second taper hole, the fastening cap 6 is connected with a limiting sleeve 5 through a thread, the limiting sleeve 5 is in a cylindrical shape with openings at two ends, one end of the limiting sleeve 5 arranged in the fastening cap 6 is in a frustum shape, and one end of the limiting sleeve 5 arranged in the fastening cap 6 is provided with a second taper thread;
as another embodiment of the present invention, as shown in fig. 2, fig. 3 and fig. 4, one end of the position-limiting sleeve 5 is a conical shape, the other end of the position-limiting sleeve 5 is a straight cylinder shape, the position-limiting sleeve 5 is a rubber tube, at least two sets of position-limiting grooves 51 are provided on the position-limiting sleeve 5, the position-limiting grooves 51 are uniformly distributed around the axis of the position-limiting sleeve 5, a position-limiting strip 7 is fixedly connected in the position-limiting groove 51, the position-limiting strip 7 is a strip shape with a bent angle, the position-limiting strip 7 is a hard material, the second conical thread is provided on the position-limiting strip 7, when the fastening cap 6 is screwed on the position-limiting strip 7, the fastening cap 6 extrudes the position-limiting strip 7 to approach each other due to the effect of the conical thread, so that the position-limiting strip 7 clamps the three-neck flask;
as a preferable mode of the present invention, the limiting strip 7 is first fixedly connected to the limiting sleeve 5, and then the second taper thread on the limiting strip 7 is processed, so that the fastening cap 6 can be smoothly screwed on the limiting strip 7;
in some examples, the spacing strip 7 is fixedly connected to the spacing sleeve 5 by gluing;
other structures in this embodiment are the same as those in embodiment 1.
To sum up, the utility model discloses a theory of operation is:
when the three-mouth flask is used, nitrogen is inserted into the air pipe fixing pipe 21, the sealing head 4 is screwed, the first taper hole in the sealing head 4 extrudes the sealing pipe 3, the sealing pipe 3 extrudes the sealing pipe 3 onto the outer wall of the nitrogen pipe, the sealing pipe 3 seals the outer wall of the nitrogen pipe, the limiting sleeve 5 is sleeved at the mouth of the three-mouth flask, the fastening cap 6 is rotated onto the limiting sleeve 5, at the moment, the rubber plug 1 is inserted into the three-mouth flask, after the fastening cap 6 is screwed, the fastening cap 6 extrudes the limiting sleeve 5, so that the limiting sleeve 5 clamps the three-mouth flask, the fastening cap 6 presses the rubber plug 1 at the mouth of the three-mouth flask in the process of screwing the limiting sleeve 5, at the moment, the rubber plug 1 is attached to the mouth of the three-mouth flask, and the sealing of the three-mouth flask is completed;
when the fastening cap 6 is screwed on the limiting sleeve 5, the limiting sleeve 5 can clamp the outer wall of the three-neck flask, so that the limiting sleeve 5 can be prevented from being separated from the three-neck flask, and the rubber plug 1 can be fixed at the mouth of the three-neck flask.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a nitrogen gas switch-on structure of three-necked flask reaction, includes rubber buffer (1) and the fixed subassembly of trachea (2), rubber buffer (1) is frustum shape, is equipped with intercommunicating pore (11) that set up along the central line on rubber buffer (1), its characterized in that, rubber buffer (1) and the fixed subassembly of trachea (2) fixed connection, the fixed subassembly of trachea (2) is ring shape, is equipped with the fixed pipe of trachea (21) on the fixed subassembly of trachea (2), and the fixed pipe of trachea (21) is equipped with open-ended tube-shape for both ends, and the one end fixedly connected with sealed tube (3) that rubber buffer (1) was kept away from to the fixed pipe of trachea (21), sealed tube (3) are the taper rubber pipe, and the one end that rubber buffer (1) was kept away from to the fixed pipe of trachea (21) still is equipped with sealed head (4), is equipped with first bell mouth in sealed head (4), sealed head (4) and the fixed pipe of trachea (21) fixed connection, go back fixedly connected with fastening cap (6) on trachea fixed tube (21), fastening cap (6) are equipped with the open-ended tube-shape for one end, are equipped with second conical hole in fastening cap (6), and the downthehole first awl screw that is equipped with of second conical hole, fastening cap (6) have stop collar (5) through threaded connection, and stop collar (5) are equipped with the open-ended tube-shape for both ends, and the one end of establishing in fastening cap (6) is frustum shape in stop collar (5), and the one end of establishing in fastening cap (6) in stop collar (5) is equipped with the second awl screw.
2. The nitrogen gas connection structure for the reaction in the three-neck flask according to claim 1, wherein an external thread is provided at one end of the gas pipe fixing pipe (21) far away from the rubber stopper (1), an internal thread is provided in the sealing head (4), and the sealing head (4) is a counter bore.
3. The nitrogen connecting structure for the reaction in the three-neck flask according to claim 1, wherein the gas pipe fixing tube (21) and the sealing tube (3) are fixedly connected by means of gluing.
4. The nitrogen connecting structure for the reaction of the three-necked flask according to any one of claims 1 to 3, wherein one end of the limiting sleeve (5) is conical, the other end of the limiting sleeve (5) is straight-tube-shaped, the limiting sleeve (5) is a rubber tube, at least two sets of limiting grooves (51) are arranged on the limiting sleeve (5), the limiting grooves (51) are uniformly distributed around the axis of the limiting sleeve (5), a limiting strip (7) is fixedly connected in the limiting groove (51), the limiting strip (7) is strip-shaped with a bent angle, the limiting strip (7) is made of hard material, and the second taper thread is arranged on the limiting strip (7).
5. Nitrogen connection structure for reaction in a three-necked flask according to claim 4, characterized in that the stop strip (7) is fixedly connected to the stop collar (5) by gluing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023157521.8U CN214051699U (en) | 2020-12-24 | 2020-12-24 | Nitrogen connecting structure for three-neck flask reaction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023157521.8U CN214051699U (en) | 2020-12-24 | 2020-12-24 | Nitrogen connecting structure for three-neck flask reaction |
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| CN214051699U true CN214051699U (en) | 2021-08-27 |
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| CN202023157521.8U Active CN214051699U (en) | 2020-12-24 | 2020-12-24 | Nitrogen connecting structure for three-neck flask reaction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117949257A (en) * | 2024-03-26 | 2024-04-30 | 浙江省海洋生态环境监测中心(浙江省舟山生态环境监测中心) | Quantitative adjustable seawater oil sampler |
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2020
- 2020-12-24 CN CN202023157521.8U patent/CN214051699U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117949257A (en) * | 2024-03-26 | 2024-04-30 | 浙江省海洋生态环境监测中心(浙江省舟山生态环境监测中心) | Quantitative adjustable seawater oil sampler |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fan Baokun Inventor after: Li Qingning Inventor before: Fan Baokun Inventor before: Li Qingning |
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| CB03 | Change of inventor or designer information |