CN216727160U

CN216727160U - Volumetric flask for preparing 2,3, 5-trimethyl-4-nitropyridine-N-oxide

Info

Publication number: CN216727160U
Application number: CN202220260774.8U
Authority: CN
Inventors: 刘庆贵; 姚辉涛
Original assignee: Jinan Luohe Pharmaceutical Technology Co ltd
Current assignee: Jinan Luohe Pharmaceutical Technology Co ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-06-14
Anticipated expiration: 2032-02-08

Abstract

The utility model discloses a volumetric flask for preparing 2,3, 5-trimethyl-4-nitropyridine-N-oxide, which comprises a flask body, a flask stopper, a leakage cylinder and a column body, wherein the top of the flask body is communicated with a measuring tube, a thread sleeve is fixedly arranged inside the top of the measuring tube, a sealing ring is fixedly arranged at the bottom of the thread sleeve, a conical ring is fixedly arranged at the bottom of the sealing ring, and an annular cushion is fixedly arranged at the top of the measuring tube. Through the friction ring and the soft board that set up, the body is placed when the holding surface, can carry out the friction force that increases with the contact surface through the friction ring of bottom this moment for the structure is stood stably, avoids the damage of colliding with, then the soft board can completely cut off operation personnel palm and body when taking up the body, avoids causing inside volume to change because of the palm temperature, and the setting of bump can the antiskid in addition, is convenient for cooperate to take up the operation and place somewhere.

Description

Volumetric flask for preparing 2,3, 5-trimethyl-4-nitropyridine-N-oxide

Technical Field

The utility model belongs to the technical field of preparation of medical intermediates, and particularly relates to a volumetric flask for preparing 2,3, 5-trimethyl-4-nitropyridine-N-oxide.

Background

The medical intermediate is actually some chemical raw materials or chemical products used in the process of synthesizing medicines, the chemical products do not need production licenses of the medicines, can be produced in a common chemical plant, can be used for synthesizing the medicines as long as reaching some grades, and is a thin-neck pear-shaped flat-bottom container which is provided with a ground glass stopper, marked lines are arranged on the neck, and when the liquid concave liquid level is tangent to the marked lines on the neck of the container at the indicated temperature, the volume of the solution is just equal to the volume marked on the bottle, and the volume of the container is marked with: temperature, volume, scale mark, volumetric flask is for preparing the accurate instrument that solution of the volume concentration of certain material of accuracy used, it is a slender neck, pear-shaped flat bottom glass bottle with ground glass stopper, there is scale on the neck, when the volume reaches the mark line under the appointed temperature in the bottle, its volume is the volume number marked, this kind is generally "measuring into" volumetric flask.

In the production process of medical intermediates, particularly in the preparation process of 2,3, 5-trimethyl-4-nitropyridine-N-oxide, in addition to additives and various solvents, volumetric flasks are needed, but the conventional volumetric flasks are generally simpler and are only pear-shaped flasks and flask tubes, other mechanisms are not arranged, for example, when workers take the flask by hands, the temperature of the flask body can be changed, the volume of the flask body can be changed, and different use requirements cannot be met, so that the volumetric flask for preparing the 2,3, 5-trimethyl-4-nitropyridine-N-oxide is provided.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a volumetric flask for preparing 2,3, 5-trimethyl-4-nitropyridine-N-oxide, which solves the problems that the temperature of a flask body can be changed and the volume can be changed when an operator takes the flask by hand, and different use requirements cannot be met.

In order to achieve the purpose, the utility model provides the following technical scheme: a volumetric flask for preparing 2,3, 5-trimethyl-4-nitropyridine-N-oxide comprises a flask body, a flask stopper, a leakage barrel and a column body, wherein the top of the flask body is communicated with a measuring tube, the inside of the top of the measuring tube is fixedly provided with a thread sleeve, the bottom of the thread sleeve is fixedly provided with a sealing ring, the bottom of the sealing ring is fixedly provided with a conical ring, the top of the measuring tube is fixedly provided with an annular cushion, the outside of the flask body is provided with a plurality of soft plates, the outside of the soft plates is provided with salient points, the bottom of the flask body is fixedly provided with a friction ring, the top of the flask stopper is fixedly provided with a ring plate, the top of the ring plate is fixedly provided with a handle, the bottom of the flask stopper is fixedly provided with a first sealing ring, the top of the leakage barrel is communicated with a conical barrel, and the bottom of the conical barrel is provided with a bottom ring, the inboard of a toper section of thick bamboo is provided with the end ring, the bottom of leaking a section of thick bamboo is provided with the second sealing ring, the outside of cylinder is provided with a plurality of rubber rings, the bottom fixed mounting of cylinder has the awl post, the top fixed mounting of cylinder has the shrouding, the top fixed mounting of shrouding has the handle.

Preferably, the front face and the back face of the burette are provided with scale marks.

By adopting the technical scheme, the liquid measuring device has the advantages that the scale marks can provide certain reference for liquid in the measuring tube, and the liquid measuring device is convenient for operators to measure and add.

Preferably, the soft board is uniformly distributed on the outer side of the bottle body in a ring shape, and the salient points are uniformly distributed on the outer side of the soft board.

Through adopting above-mentioned technical scheme, the advantage lies in avoiding causing the inside volume change because of the palm temperature, and the setting of bump can the antiskid moreover, is convenient for cooperate to take up the operation and place in the somewhere.

Preferably, the specification and the size of the bottle stopper are matched with those of the threaded sleeve, threads are arranged on the outer side of the bottle stopper, and thread grooves are formed in the inner side of the threaded sleeve.

Through adopting above-mentioned technical scheme, the advantage lies in being convenient for the bottle plug to the top shutoff of buret, avoids not hard up, and the use equipment can also be connected in the setting of thread bush.

Preferably, the specification size of the first sealing ring and the specification size of the second sealing ring are matched with the specification size of the sealing ring.

By adopting the technical scheme, the sealing device has the advantages that the first sealing ring and the second sealing ring can respectively seal the structure where the sealing device is located and the sealing ring, and the structure is convenient to stabilize and the use is convenient.

Preferably, the outer side of the leakage cylinder is provided with threads, and the specification and the size of the leakage cylinder are matched with those of the threaded sleeve.

Through adopting above-mentioned technical scheme, the advantage lies in leaking a section of thick bamboo and can carry out threaded connection through the screw thread in the outside and the thread groove of thread bush inboard, and a toper section of thick bamboo of being convenient for install has increased the convenience of device use and the variety of demand.

Preferably, the specification and the size of the cylinder are matched with those of the leakage cylinder, and the specification and the size of the sealing plate are matched with those of the annular surface.

Through adopting above-mentioned technical scheme, the advantage lies in shrouding and annular face contact, carries out the shutoff with a toper section of thick bamboo and a hourglass section of thick bamboo, changes the operation demand when being convenient for the operation.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the buret through setting up is poured to the outside, the water conservancy diversion of accessible taper ring and sealing washer is discharged, avoid liquid to get into thread bush and threaded connection part, the convenience of device has been increased, and when needing to seal, peg graft the cylinder in the inboard of leaking a section of thick bamboo this moment, outside rubber ring carries out extrusion seal with the inner wall of leaking a section of thick bamboo, and shrouding and annular surface contact, carry out the shutoff with a taper cylinder and a hourglass section of thick bamboo, be convenient for carry out the operation according to the operation demand of difference, and when leaking a section of thick bamboo and pull down, can carry out the shutoff with the thread bush through the bottle plug, the condition of operation demand is convenient for change according to the demand to this scheme, excellent in use effect, can cooperate the interpolation and the measurement of different solvent and liquid.

2. Through the friction ring and the soft board that set up, the body is placed when the holding surface, can carry out the friction force that increases with the contact surface through the friction ring of bottom this moment for the structure is stood stably, avoids the damage of colliding with, then the soft board can completely cut off operation personnel palm and body when taking up the body, avoids causing inside volume to change because of the palm temperature, and the setting of bump can the antiskid in addition, is convenient for cooperate to take up the operation and place somewhere.

Drawings

FIG. 1 is a front perspective structural view of the present invention;

FIG. 2 is a schematic bottom perspective view of the present invention;

FIG. 3 is a front view, partially in section, in accordance with the present invention;

fig. 4 is a schematic view of the front perspective appearance structure of the bottle stopper of the present invention;

FIG. 5 is a schematic view of the front perspective appearance of the funnel of the present invention;

fig. 6 is a schematic diagram of a front perspective appearance structure of the cylinder of the present invention.

In the figure: 1. a bottle body; 2. measuring a tube; 3. an annular cushion; 4. a threaded sleeve; 5. scale marks; 6. salient points; 7. a soft board; 8. a friction ring; 9. a seal ring; 10. a conical ring; 11. a bottle stopper; 12. a grip; 13. a ring plate; 14. a first seal ring; 15. a leakage cylinder; 16. a tapered barrel; 17. an annular face; 18. a bottom ring; 19. a second seal ring; 20. a cylinder; 21. closing the plate; 22. a handle; 23. a rubber ring; 24. a conical column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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, shall fall within the protection scope of the present invention.

As shown in figures 1-6, a volumetric flask for preparing 2,3, 5-trimethyl-4-nitropyridine-N-oxide comprises a flask body 1, a flask stopper 11, a funnel 15 and a column 20, wherein the top of the flask body 1 is communicated with a burette 2, a thread sleeve 4 is fixedly arranged inside the top of the burette 2, a sealing ring 9 is fixedly arranged at the bottom of the thread sleeve 4, a conical ring 10 is fixedly arranged at the bottom of the sealing ring 9, an annular cushion 3 is fixedly arranged at the top of the burette 2, a plurality of soft plates 7 are arranged outside the flask body 1, salient points 6 are arranged outside the soft plates 7, a friction ring 8 is fixedly arranged at the bottom of the flask body 1, a ring plate 13 is fixedly arranged at the top of the flask stopper 11, a handle 12 is fixedly arranged at the top of the ring plate 13, a first sealing ring 14 is fixedly arranged at the bottom of the flask stopper 11, a conical cylinder 16 is communicated with the top of the funnel 15, the bottom of a toper section of thick bamboo 16 is provided with end ring 18, and the inboard of a toper section of thick bamboo 16 is provided with end ring 18, leaks the bottom of a section of thick bamboo 15 and is provided with second sealing ring 19, and the outside of cylinder 20 is provided with a plurality of rubber rings 23, and the bottom fixed mounting of cylinder 20 has awl post 24, and the top fixed mounting of cylinder 20 has shrouding 21, and the top fixed mounting of shrouding 21 has handle 22.

The working principle of the technical scheme is as follows:

when the liquid leakage device is used, a user firstly puts liquid into the top of the burette 2, when the liquid is inconvenient to put, the leakage cylinder 15 is connected in the threaded sleeve 4 in a rotating mode through the threads, the second sealing ring 19 at the bottom is in contact with the sealing ring 9 for sealing, the bottom ring 18 is in contact with the annular cushion 3 and enables the annular cushion to be extruded and deformed, the elastic force of the annular cushion 3 is opposite to the thread hinging force between the leakage cylinder 15 and the threaded sleeve 4, therefore, the whole body is stable and not loosened due to the matching structure, the liquid can be added into the flow guide pipe 2 of the conical cylinder 16 at the moment, when the burette 2 is poured out towards the outer side, the flow guide of the conical ring 10 and the sealing ring 9 can be discharged, the liquid is prevented from entering the threaded sleeve 4 and the threaded connection part, the convenience of the device is improved, the operation can be conveniently carried out according to different operation requirements, and when the leakage cylinder 15 is detached, the threaded sleeve 4 can be blocked through the bottle stopper 11, this scheme is convenient for change the condition of operation demand according to the demand, and excellent in use effect can cooperate the interpolation and the measurement of different solvent and liquid.

In another embodiment, as shown in fig. 1 and 2, the front and back of the burette 2 are provided with graduation marks 5.

The graduation lines 5 can provide a certain reference for the liquid inside the burette 2, so that the measurement and addition can be conveniently carried out by an operator.

In another embodiment, as shown in fig. 1 and 2, the soft plate 7 is uniformly distributed on the outer side of the bottle body 1 in a ring shape, and the convex points 6 are uniformly distributed on the outer side of the soft plate 7.

When the body 1 was placed at the holding surface, can carry out and contact surface increase frictional force through the friction ring 8 of bottom this moment for the structure is stood stably, avoids the damage of colliding with, and then soft board 7 can completely cut off operation personnel palm and body 1 when picking up body 1, avoids causing inside volume to change because of the palm temperature, and the setting of bump 6 can be anti-skidding in addition, is convenient for cooperate to pick up the operation and place somewhere.

In another embodiment, as shown in fig. 1, 3 and 4, the bottle stopper 11 has a size corresponding to the size of the threaded sleeve 4, the outer side of the bottle stopper 11 is provided with threads, and the inner side of the threaded sleeve 4 is provided with thread grooves.

The bottle stopper 11 can be in threaded connection with the thread groove on the inner side of the thread sleeve 4 through threads on the outer side, the connection mode is similar to a bolt and a nut, the bottle stopper 11 can conveniently plug the top of the measuring tube 2, looseness is avoided, and the thread sleeve 4 can be connected with a using device.

In another embodiment, as shown in fig. 3-5, the dimensions of the first sealing ring 14 and the second sealing ring 19 are adapted to the dimensions of the sealing ring 9.

The first sealing ring 14 and the second sealing ring 19 can respectively seal the structure where the sealing ring 9 is located and the sealing ring 9, so that the structure is stable and the use is convenient.

In another embodiment, as shown in fig. 1, 3 and 4, the outside of the funnel 15 is provided with a screw thread, and the size of the funnel 15 is adapted to the size of the screw sleeve 4.

The leakage cylinder 15 can be in threaded connection with a thread groove on the inner side of the thread sleeve 4 through threads on the outer side, so that the conical cylinder 16 is convenient to mount, and the convenience in use and the diversity of requirements of the device are increased.

In another embodiment, shown in figures 5 and 6, the cylindrical body 20 is sized to fit the funnel 15 and the closure plate 21 is sized to fit the annular face 17.

When the leakage cylinder 15 needs to be sealed, the column body 20 is inserted into the inner side of the leakage cylinder 15, the outer rubber ring 23 and the inner wall of the leakage cylinder 15 are squeezed and sealed, the sealing plate 21 is in contact with the annular surface 17, the conical cylinder 16 and the leakage cylinder 15 are sealed, and operation requirements can be changed conveniently during operation.

The working principle and the using process of the utility model are as follows: when the liquid bottle is used, a user firstly puts in liquid through the top of the burette 2, when the liquid is inconvenient to put in, the leakage cylinder 15 is connected in the threaded sleeve 4 in a rotating mode through threads, the second sealing ring 19 at the bottom is in contact with the sealing ring 9 for sealing, the bottom ring 18 is in contact with the annular cushion 3 and is extruded and deformed, the elastic force of the annular cushion 3 is opposite to the hinged force of the threads between the leakage cylinder 15 and the threaded sleeve 4, so that the whole body is stable and not loosened due to the matching structure, at the moment, the liquid can be added into the flow guide pipe 2 of the conical cylinder 16, then the bottle body 1 is placed on a supporting surface, at the moment, the friction force can be increased with the contact surface through the friction ring 8 at the bottom, the structure is stable in standing, the damage caused by collision is avoided, then the soft plate 7 can isolate the palm and the bottle body 1 of an operator when the bottle body 1 is taken up, and the change of the internal volume caused by the palm temperature is avoided, and bump 6's setting can be skid-proof, be convenient for the cooperation take-up operation and place somewhere, when equivalent pipe 2 pours to the outside, the water conservancy diversion of accessible conical ring 10 and sealing washer 9 is discharged, avoid liquid to get into thread bush 4 and threaded connection part, the convenience of device has been increased, and when needing to seal, peg graft cylinder 20 in the inboard of leaking a section of thick bamboo 15 this moment, outside rubber ring 23 carries out extrusion seal with the inner wall of leaking a section of thick bamboo 15, and shrouding 21 and annular surface 17 contact, seal up conical ring 16 and leaking a section of thick bamboo 15, be convenient for carry out the operation according to the operation demand of difference, and when leaking a section of thick bamboo 15 and pulling down, can carry out the shutoff with thread bush 4 through bottle plug 11, the condition of operation demand is convenient for changing according to the demand to this scheme, excellent in use effect, can cooperate the interpolation and the measurement of different solvents and liquid.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A volumetric flask for preparing 2,3, 5-trimethyl-4-nitropyridine-N-oxide comprises a flask body (1), a flask stopper (11), a leakage cylinder (15) and a column body (20), and is characterized in that: the top intercommunication of body (1) has buret (2), the inside fixed mounting at buret (2) top has thread bush (4), the bottom fixed mounting of thread bush (4) has sealing washer (9), the bottom fixed mounting of sealing washer (9) has conical ring (10), the top fixed mounting of buret (2) has annular cushion (3), the outside of body (1) is provided with a plurality of soft boards (7), the outside of soft board (7) is provided with bump (6), the bottom fixed mounting of body (1) has friction ring (8), the top fixed mounting of bottle plug (11) has crown plate (13), the top fixed mounting of crown plate (13) has handle (12), the bottom fixed mounting of bottle plug (11) has first sealing ring (14), the top intercommunication of leaking a section of thick bamboo (15) has a cone (16), the bottom of a toper section of thick bamboo (16) is provided with end ring (18), the inboard of a toper section of thick bamboo (16) is provided with end ring (18), the bottom of leaking a section of thick bamboo (15) is provided with second sealing ring (19), the outside of cylinder (20) is provided with a plurality of rubber ring (23), the bottom fixed mounting of cylinder (20) has awl post (24), the top fixed mounting of cylinder (20) has shrouding (21), the top fixed mounting of shrouding (21) has handle (22).

2. A volumetric flask for the preparation of 2,3, 5-trimethyl-4-nitropyridine-N-oxide according to claim 1, characterized in that: the front and the back of the measuring tube (2) are provided with scale marks (5).

3. A volumetric flask for the preparation of 2,3, 5-trimethyl-4-nitropyridine-N-oxide according to claim 1, characterized in that: the soft board (7) is uniformly distributed on the outer side of the bottle body (1) in an annular shape, and the salient points (6) are uniformly distributed on the outer side of the soft board (7).

4. A volumetric flask for the preparation of 2,3, 5-trimethyl-4-nitropyridine-N-oxide according to claim 1, characterized in that: the specification and size of bottle plug (11) and the specification and size looks adaptation of thread bush (4), the outside of bottle plug (11) is provided with the screw thread, the inboard of thread bush (4) is provided with the thread groove.

5. A volumetric flask for the preparation of 2,3, 5-trimethyl-4-nitropyridine-N-oxide according to claim 1, characterized in that: the specification and the size of the first sealing ring (14) and the second sealing ring (19) are matched with those of the sealing ring (9).

6. A volumetric flask for the preparation of 2,3, 5-trimethyl-4-nitropyridine-N-oxide according to claim 1, characterized in that: the outer side of the leakage barrel (15) is provided with threads, and the specification size of the leakage barrel (15) is matched with that of the threaded sleeve (4).

7. A volumetric flask for the preparation of 2,3, 5-trimethyl-4-nitropyridine-N-oxide according to claim 1, characterized in that: the specification and size of the column body (20) are matched with that of the leakage cylinder (15), and the specification and size of the sealing plate (21) are matched with that of the annular surface (17).