Nitrogen blowing pipe

Abstract

The utility model relates to the technical field of environment monitoring, and discloses a nitrogen blowing pipe which comprises a nitrogen blowing pipe body, a storage groove is formed in the middle of the upper surface of the nitrogen blowing pipe body, external threads are arranged at the upper end of the outer wall of the nitrogen blowing pipe body, a pipe cover is arranged at the upper end of the outer wall of the nitrogen blowing pipe body in a sleeved mode, internal threads are formed in the inner wall of the pipe cover, and the inner wall of the pipe cover is provided with an external thread. And liquid outlet grooves are formed in the two sides of the upper end of the inner wall of the storage groove, a necking opening is fixedly connected to the lower end of the nitrogen blowing pipe body, and a silica gel sealing gasket is fixedly connected to the middle of the inner top face of the pipe cover. According to the nitrogen blowing pipe, when the nitrogen blowing pipe is used, the external threads and the internal threads are in threaded connection conveniently through the blanking cap, then an internal sample is sealed, the sealing performance of the nitrogen blowing pipe can be ensured, volatile gas of the internal sample is prevented from leaking out, the stability and integrity of the sample are kept, friction force is increased conveniently through the anti-skid lines, and the service life of the sample is prolonged. A user can more easily hold during rotation, sliding is not prone to occurring, and the operation stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental monitoring technical field especially relates to a nitrogen blow pipe. BACKGROUND

[0002] It is known that, in the field of environmental monitoring, organic sample nitrogen blow concentration treatment usually needs to use nitrogen blow pipe, nitrogen blow pipe is usually used for the device of depositing the organic sample of waiting analysis, its function is through the inert nitrogen gas, the organic solvent in the sample is volatilized, thereby the target component in the sample is concentrated, and subsequent analysis and detection are convenient, and this pretreatment method is often used for concentrating volatile or semi-volatile organic matter in the sample, so as to facilitate subsequent analysis and detection.

[0003] However, the conventional nitrogen blow pipe, usually in the process of storing samples, due to the strong volatility of the sample itself, the volatile substances in the sample in the pipe are released, therefore, technical improvement is urgently needed. UTILITY MODEL CONTENT

[0004] The utility model discloses a nitrogen blow pipe, the nitrogen blow pipe is used, and the outer thread and the internal thread are conveniently screwed through the plug cover, and then the internal sample is sealed, can ensure the sealing property of the nitrogen blow pipe, prevents the internal sample volatile gas from leaking, maintains the stability and integrity of the sample, conveniently increases the friction through the anti -slip line, makes the user more easily hold when rotating, is not easy to slide, improves the stability of operation.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A nitrogen blow pipe, including nitrogen blow pipe body (1), the middle part of the upper surface of nitrogen blow pipe body (1) is equipped with the storage groove (2), the upper end of nitrogen blow pipe body (1) outer wall is provided with outer thread (3), the upper end of nitrogen blow pipe body (1) outer wall is equipped with pipe cover (4), the inner wall of pipe cover (4) is equipped with internal thread (5), the both sides of the upper end of the inner wall of storage groove (2) are equipped with liquid outlet groove (7), and the lower end of nitrogen blow pipe body (1) is fixedly connected with the necking (8);

[0007] The middle part of the inner top surface of pipe cover (4) is fixedly connected with silica gel sealing washer (11), the inside of silica gel sealing washer (11) is equipped with installation cavity (12), and the inside of installation cavity (12) is fixedly connected with a plurality of limit springs (13).

[0008] Compared with the existing nitrogen blowing tube, when the pipe cover is connected with the nitrogen blowing tube body, the silica gel sealing gasket is deformed at the same time and gives the limiting spring force, so that it is compressed, when the pipe cover is connected, the limiting spring releases the force and drives the silica gel sealing gasket to tightly adhere to the inner wall of the storage groove, so as to seal it, thereby preventing the volatile sample in the nitrogen blowing tube from volatilizing to the outside environment, which is important for maintaining the integrity of the sample and avoiding environmental pollution. The liquid outlet groove can make the sample more concentrated when pouring out, not easy to scatter and spill. The main scale and the necking scale are convenient for checking the internal sample capacity, and the practical performance is higher.

[0009] Further, the two sides of the upper end of the inner wall of the storage groove (2) are provided with liquid outlet grooves (7);

[0010] Through the above technical scheme, the liquid outlet groove (7) can make the sample more concentrated when pouring out, not easy to scatter and spill.

[0011] Further, the outer wall of the front end of the nitrogen blowing tube body (1) is provided with a main scale (9);

[0012] Through the above technical scheme, the main scale (9) is convenient for checking the internal sample capacity.

[0013] Further, the outer wall of the front end of the necking (8) is provided with a necking scale (10)

[0014] Through the above technical scheme, the necking scale (10) is convenient for checking the internal sample capacity.

[0015] Further, the outer wall of the pipe cover is provided with anti-skid lines;

[0016] Through the above technical scheme, the anti-skid lines can increase the friction force, so that the user can hold it more easily when rotating, and it is not easy to slide.

[0017] Further, the outer thread is threadedly connected with the inner thread;

[0018] Through the above technical scheme, the outer thread is threadedly connected with the inner thread, which is convenient for sealing the nitrogen blowing tube body.

[0019] Further, the outer wall of the silica gel sealing gasket (11) is tightly adhered to the inner wall of the storage groove (2);

[0020] Through the above technical scheme, the silica gel sealing gasket is convenient for secondary sealing of the inner wall of the storage groove.

[0021] Further, the nitrogen blowing tube body is made of glass material;

[0022] Through the above technical scheme, the glass material has good transparency, so that the operator can clearly observe the sample state in the tube, including sample dissolution, reaction or volatilization, etc., which is beneficial to the monitoring and control of the experimental process.

[0023] The utility model discloses have the following beneficial effects:

[0024] 1. The nitrogen blowing tube provided by the utility model, compared with the existing nitrogen blowing tube, when the nitrogen blowing tube is used, the outer thread and the inner thread are conveniently threadedly connected through the plug cover, thereby sealing the internal sample, the sealing property of the nitrogen blowing tube can be ensured, the leakage of the internal sample volatile gas is prevented, the stability and integrity of the sample are maintained, the friction is conveniently increased through the anti-skid pattern, the user is more easily held when rotating, and the stability of operation is improved.

[0025] 2. The nitrogen blowing tube provided by the utility model, compared with the existing nitrogen blowing tube, when the nitrogen blowing tube is used, when the pipe cover is connected with the nitrogen blowing tube body, the silica gel sealing gasket is deformed at the same time and is given the limiting spring force, so that the limiting spring is compressed, when the pipe cover is connected, the limiting spring releases the force and drives the silica gel sealing gasket to tightly adhere to the inner wall of the storage groove, so that the silica gel sealing gasket is sealed, thereby, the volatile sample in the nitrogen blowing tube can be prevented from volatilizing to the external environment, which is crucial for maintaining the integrity of the sample and avoiding environmental pollution, the liquid outlet groove can conveniently make the sample more concentrated when being poured out, is not easily scattered and spilled, the internal sample capacity is conveniently checked through the main body scale and the necking scale, and the practicality is higher. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is an explosion schematic view of the nitrogen blowing tube provided by the utility model;

[0027] Figure 2 It is an explosion schematic view of the pipe cover in the nitrogen blowing tube provided by the utility model;

[0028] Figure 3 It is an axial sectional view of the nitrogen blowing tube provided by the utility model;

[0029] Figure 4 It is a structural schematic view of the pipe cover in the nitrogen blowing tube provided by the utility model;

[0030] Figure 5 It is Figure 3 An enlarged view of position A in the nitrogen blowing tube.

[0031] LEGEND:

[0032] 1, nitrogen blowing tube body;2, storage groove;3, outer thread;4, pipe cover;5, inner thread;6, anti-skid pattern;7, liquid outlet groove;8, necking;9, main body scale;10, necking scale;11, silica gel sealing gasket;12, mounting cavity;13, limiting spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0034] With reference to Figures 1-5 The present application provides an embodiment: a nitrogen blowing pipe, comprising a nitrogen blowing pipe body 1, a storage groove 2 is arranged in the middle of the upper surface of the nitrogen blowing pipe body 1, an external thread 3 is arranged at the upper end of the outer wall of the nitrogen blowing pipe body 1, a pipe cover 4 is arranged at the upper end of the outer wall of the nitrogen blowing pipe body 1, an internal thread 5 is arranged in the inner wall of the pipe cover 4, a liquid outlet groove 7 is arranged on both sides of the upper end of the inner wall of the storage groove 2, and a necked portion 8 is fixedly connected to the lower end of the nitrogen blowing pipe body 1.

[0035] A silica gel sealing gasket 11 is fixedly connected to the middle of the inner top surface of the pipe cover 4, an installation cavity 12 is arranged in the silica gel sealing gasket 11, and a plurality of limiting springs 13 are fixedly connected to the installation cavity 12.

[0036] Compared with the existing nitrogen blowing pipe, when the pipe cover 4 is connected to the nitrogen blowing pipe body 1, the silica gel sealing gasket 11 is deformed at the same time, and the limiting spring 13 is given an acting force so as to be compressed, when the pipe cover 4 is connected, the limiting spring 13 releases the acting force to drive the silica gel sealing gasket 11 to tightly adhere to the inner wall of the storage groove 2, so as to seal, and then the volatile sample in the nitrogen blowing pipe can be prevented from volatilizing to the external environment, which is very important for maintaining the integrity of the sample and avoiding environmental pollution, the liquid outlet groove 7 can make the sample more concentrated when being poured out, and is not easy to scatter and spill, the main body scale 9 and the necked portion scale 10 can be used to check the internal sample capacity, and the practical performance is higher.

[0037] The outer wall of the front end of the nitrogen blowing pipe body 1 is provided with a main body scale 9, and the inner wall of the front end of the necking 8 is provided with a necking scale 10.

[0038] Working principle: when the nitrogen blowing concentration is used, the sample is input through the storage tank 2, the organic sample nitrogen blowing concentration is not connected with the pipe cover 4, the nitrogen blowing pipe is placed on the nitrogen blowing instrument, the nitrogen gas is input, the organic solvent is volatilized, the sample concentration is realized, the organic sample nitrogen blowing concentration before or after the concentration is sealed by the plug cover, the outer thread 3 and the inner thread 5 are threadedly connected, and then the internal sample is sealed, the sealing property of the nitrogen blowing pipe can be ensured, the internal sample volatilization leakage is prevented, the stability and integrity of the sample are maintained, the friction is increased through the anti-skid line 6, the user is more easily held when rotating, the operation stability is improved, the sample is more concentrated when being poured out through the liquid outlet groove 7, and the sample is not easy to scatter and fall, and the internal sample capacity is easily checked through the main body scale 9 and the necking scale 10.

[0039] Finally, it should be pointed out that: the above only preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present application.

Claims

1. A nitrogen lance comprising a nitrogen lance body (1), characterized in that: The middle part of the upper surface of the nitrogen blowing pipe body (1) is provided with a storage groove (2), the upper end of the outer wall of the nitrogen blowing pipe body (1) is provided with an external thread (3), the upper end of the outer wall of the nitrogen blowing pipe body (1) is sleeved with a pipe cover (4), the inner wall of the pipe cover (4) is provided with an internal thread (5), the two sides of the upper end of the inner wall of the storage groove (2) are provided with liquid outlet grooves (7), and the lower end of the nitrogen blowing pipe body (1) is fixedly connected with a necking portion (8). The middle part of the inner top surface of the pipe cover (4) is fixedly connected with a silica gel sealing gasket (11), the inside of the silica gel sealing gasket (11) is provided with a mounting cavity (12), and the inside of the mounting cavity (12) is fixedly connected with a plurality of limiting springs (13).

2. A nitrogen blow tube according to claim 1, wherein: The two sides of the upper end of the inner wall of the storage groove (2) are provided with liquid outlet grooves (7).

3. A nitrogen blow tube according to claim 1, wherein: The outer wall of the front end of the nitrogen blowing pipe body (1) is provided with a main body scale (9).

4. The nitrogen blow tube of claim 1, wherein: The outer wall of the front end of the necking portion (8) is provided with a necking scale (10).

5. The nitrogen blow tube of claim 1, wherein: The outer wall of the pipe cover (4) is provided with anti-skid lines (6).

6. A nitrogen blow tube according to claim 1, wherein: The external thread (3) is in threaded connection with the internal thread (5).

7. The nitrogen blow tube of claim 1, wherein: The outer wall of the silica gel sealing gasket (11) is closely attached to the inner wall of the storage groove (2).

8. The nitrogen blow tube of claim 1, wherein: The nitrogen blowing pipe body (1) is made of glass.

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