CN220125927U - Smoke box with gas buffer - Google Patents

Abstract

The utility model discloses a smoke box with a gas buffer, which comprises: the box body is provided with an air inlet communicated with the inside of the box body, and the side wall of the air inlet is provided with a first limiting block; the gas buffer penetrates through the gas inlet and stretches into the box body, a buffer cavity is formed in the gas buffer, a plurality of air equalizing holes communicated with the buffer cavity are formed in the portion, penetrating into the box body, of the gas buffer, and a second limiting block in limiting fit with the first limiting block is arranged on the outer wall of the gas buffer. According to the smoke box with the gas buffer and the smoke box, the gas can be injected into the smoke box at a constant speed through the gas buffer, the gas pipe can be manually rotated, and the gas in the gas pipe is uniformly distributed in the smoke box, so that the experimental result is more accurate.

Description

Smoke box with gas buffer

Technical Field

The utility model relates to the field of detection instruments, in particular to a smoke box with a gas buffer.

Background

The smoke box is a device for researching the concentration of smoke, and an instrument for measuring the concentration of gas and aerosol is arranged at the bottom of the smoke box.

In the related art, the gas is difficult to be injected into the smoke box by manually injecting the gas, so that the mixing speeds of the gas are different, and the concentration of formed aerosol particles is greatly different, so that the experimental result in the smoke box cannot be accurate.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the smoke box with the gas buffer, and the accuracy of experiments in the smoke box can be improved.

An embodiment of the utility model provides a smoke box with a gas buffer, which is used for gas experiments and comprises: the box body is provided with an air inlet communicated with the inside of the box body, and the side wall of the air inlet is provided with a first limiting block; the gas buffer penetrates through the air inlet and stretches into the box body, a buffer cavity is formed in the gas buffer, a plurality of air equalizing holes communicated with the buffer cavity are formed in the portion, penetrating into the box body, of the gas buffer, and a second limiting block matched with the first limiting block in a limiting mode is arranged on the outer wall of the gas buffer.

The gas buffer and the smoke box provided by the embodiment of the utility model have at least the following beneficial effects:

according to the smoke box with the gas buffer and the smoke box, the gas can be injected into the smoke box at a constant speed through the gas buffer, the gas pipe can be manually rotated, and the gas in the gas pipe is uniformly distributed in the smoke box, so that the experimental result is more accurate.

According to some embodiments of the utility model, the buffer chamber comprises a gas pipe and a sealing plug, a first end of the gas pipe is a closed end, a second end of the gas pipe is provided with an opening, the gas pipe penetrates through the gas inlet and enables the first end to extend into the box body, and the sealing plug detachably seals the opening;

wherein, the air equalizing hole is arranged on the air pipe.

The gas transmission pipe comprises a first pipe fitting and a second pipe fitting, the second pipe fitting is sleeved on the first pipe fitting, the gas equalizing holes are formed in the first pipe fitting, the first pipe fitting penetrates into the box body, and the first limiting block is arranged on the first pipe fitting;

the second pipe fitting is exposed out of the box body, the second pipe fitting is made of a soft component capable of being punctured, and the second pipe fitting has elasticity.

According to some embodiments of the utility model, the gas buffer further comprises a sealing ring sleeved outside the gas pipe and in sealing fit with the gas pipe, and the sealing ring is in sealing fit with the gas inlet.

According to some embodiments of the utility model, the outer wall of the first pipe fitting is provided with external threads, the inner wall of the sealing ring is provided with internal threads, and the internal threads are connected with the external threads.

According to some embodiments of the utility model, the sealing ring abuts against the outer side wall of the box body and seals the air inlet.

According to some embodiments of the utility model, the number of each first limiting block is a plurality of blocks, and a plurality of first limiting blocks are arranged at intervals along the circumferential direction of the air inlet;

the number of the second limiting blocks is multiple, the multiple second limiting blocks are arranged at intervals along the circumferential direction of the gas buffer, and the multiple second limiting blocks are in one-to-one limit fit with the multiple first limiting blocks.

According to some embodiments of the utility model, a disassembly opening is formed between every two adjacent first limiting blocks, the gas buffer can rotate in an operating mode, the gas buffer is provided with a first position and a second position, the second limiting block is positioned at the lower side of the first limiting block when in the first position, the first limiting block is opposite to the disassembly opening when in the second position, and the second limiting block can pass through the disassembly opening.

According to some embodiments of the utility model, the box body is provided with at least one air outlet communicated with the interior of the box body, and the air outlets are all arranged on the top cover of the box body;

each air outlet is detachably provided with a plug.

According to some embodiments of the utility model, the outer surface of the box is provided with at least one air inlet;

and each gas inlet is provided with a gas buffer.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic diagram of a smoke box with a gas buffer according to an embodiment of the present utility model.

FIG. 2 is a schematic diagram of a gas buffer according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a seal ring according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a structure of a case according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a gas damper and a tank according to an embodiment of the present utility model;

FIG. 6 is an enlarged view of a portion of a gas damper and a tank according to an embodiment of the present utility model;

fig. 7 is a partial enlarged view at a of one embodiment of the present utility model.

Reference numerals:

1. a case; 11. an air outlet; 12. a first limiting block; 13. an air inlet; 131. a disassembly and assembly opening; 14. a plug; 15. a gas detection instrument;

2. a gas buffer; 21. a sealing plug; 22. a gas pipe; 221. a first pipe fitting; 2211. air equalizing holes; 222. a second pipe fitting; 23. a seal ring; 231. an internal thread; 24. a second limiting block; 25. a buffer chamber.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, an embodiment of the present utility model relates to a smoke box of a gas buffer, which comprises a box body 1 and a gas buffer 2, wherein a gas detection instrument 15 is arranged in the box body 1, and the gas detection instrument 15 is used for detecting gas.

As shown in fig. 4, the case 1 is provided with an air inlet 13 communicating with the inside of the case 1, and a first stopper 12 is provided on a side wall of the air inlet 13.

Referring to fig. 1 and 4, the gas buffer 2 is disposed through the gas inlet 13 and extends into the box 1, the gas buffer 2 is provided with a buffer cavity 25, a portion of the gas buffer 2 penetrating into the box 1 is provided with a plurality of air equalizing holes 2211 communicated with the buffer cavity 25, and the outer wall of the gas buffer 2 is provided with a second limiting block 24 in limiting fit with the first limiting block 12.

When the smoke box with the gas buffer 2 is used, firstly, gas is injected into the buffer cavity 25 of the gas buffer 2, the gas can flow into the box body 1 through the plurality of air equalizing holes 2211, the gas can more uniformly enter the box body under the action of the plurality of air equalizing holes 2211, the concentration difference of formed aerosol particles is small, and the experimental result in the smoke box is more accurate.

It should be noted that the tests performed in the fume chamber require the injection of two or more gases to react to form aerosol particles, i.e., fume. The first gas can be directly injected into the smoke box, and after the first gas is uniformly diffused in the smoke box, the second gas is injected into the gas buffer, so that the second gas can be uniformly diffused in the smoke box through the gas buffer.

The first limiting block 12 and the second limiting block 24 are in limit fit, so that the gas buffer 2 and the box 1 can be fixed together, and the slow gas buffer 2 cannot fall off from the box 1 in the experimental process.

As shown in fig. 2, the buffer cavity 25 includes a gas pipe 22 and a sealing plug 21, a first end of the gas pipe 22 is a closed end, a second end of the gas pipe 22 has an opening, the gas pipe 22 penetrates the gas inlet 13 and makes the first end extend into the box 1, and the sealing plug 21 detachably seals the opening; wherein, the air equalizing hole 2211 is arranged on the air delivery pipe 22.

It can be understood that the second end of the air pipe 22 is provided with an opening, after the experiment is finished, the sealing plug 21 is opened, so that the air inside the air pipe 22 can be discharged, meanwhile, the air pipe 22 stretches into the box 1, and the air holes 2211 are all formed in the wall of the air pipe 22 stretching into the box 1, so that the air can be injected into the box 1 more uniformly, and the accuracy of the experiment is improved while the verification air flows into the box 1.

As shown in fig. 2, the air pipe 22 includes a first pipe 221 and a second pipe 222, the second pipe 222 is sleeved on the first pipe 221, the air equalizing holes 2211 are formed in the first pipe 221, the first pipe 221 penetrates into the box 1, and the first limiting block 12 is arranged on the first pipe 221; the second pipe 222 is exposed out of the case 1, the second pipe 222 is made of a soft member that can be pierced, and the second pipe 222 has elasticity.

Specifically, the second pipe fitting 222 is made of elastic material, in practical application, the material can be elastic rubber, the second pipe fitting 222 is sleeved on the first pipe fitting 221 by using the elasticity of the material, so that the pipe fitting can be conveniently detached after the experiment is finished, meanwhile, when the injection needle tube is adopted to penetrate the second pipe fitting 222 and the gas injection is finished, the needle tube is pulled out, the needle hole can be automatically healed, and the condition of air leakage cannot occur.

As shown in fig. 2, the gas buffer 2 further includes a sealing ring 23, the sealing ring 23 is sleeved outside the gas pipe 22 and is in sealing fit with the gas pipe 22, and the sealing ring 23 is in sealing fit with the gas inlet 13.

The sealing ring 23 is sleeved on the gas pipe 22 and is in sealing fit with the gas pipe 22, the sealing ring 23 is in sealing fit with the gas inlet 13, experimental gas is prevented from flowing out of the gas inlet 13, external gas is prevented from entering the box body 1, and the experimental accuracy is improved.

As shown in fig. 3, the outer wall of the first pipe 221 is provided with an external thread, and the inner wall of the sealing ring 23 is provided with an internal thread 231, and the internal thread 231 is connected with the external thread.

Specifically, the sealing ring 23 is in threaded connection with the outer wall of the first pipe fitting 221, so that the first pipe fitting 221 is prevented from falling into the box body 1 from the air inlet 13 when gas is injected into the box body 1, and meanwhile, the first pipe fitting 221 and the sealing ring 23 are convenient to detach and separate when the experiment is finished.

As shown in fig. 1, the seal ring 23 abuts against the outer side wall of the case 1 and seals the air inlet 13.

It can be appreciated that the sealing ring 23 abuts against the outer side wall of the case 1 and seals the air inlet, so that the air in the case 1 cannot leak, and at the same time, the air buffer 2 can be prevented from falling into the case 1.

As shown in fig. 2 and 4, the number of the first stoppers 12 is a plurality of blocks, and the plurality of first stoppers 12 are arranged at intervals along the circumferential direction of the air inlet 13; the number of the second limiting blocks 24 is multiple, the second limiting blocks 24 are arranged at intervals along the circumferential direction of the gas buffer 2, and the second limiting blocks 24 are in one-to-one limiting fit with the first limiting blocks 12.

Specifically, the first limiting blocks 12 are in one-to-one corresponding limiting fit with the second limiting blocks 24, and the first limiting blocks 12 prop against the second limiting blocks 24 to prevent the gas buffer 2 from falling off the box body when gas is injected.

As shown in fig. 6 and 7, a disassembly opening 131 is formed between every two adjacent first limiting blocks 12, the gas buffer 2 is operatively rotated, and the gas buffer 2 has a first position and a second position, when the gas buffer 2 is in the first position, the second limiting block 24 is located at one side of the first limiting block 12 near the interior of the case 1, when the gas buffer 2 is in the second position, the first limiting block 12 is disposed opposite to the disassembly opening 131, and the second limiting block 24 can pass through the disassembly opening 131.

Specifically, after the gas buffer 2 stretches into the dismounting opening 131, the gas buffer 2 can rotate, when the gas buffer 2 rotates to the first position, the first limiting block 12 abuts against the second limiting block 24, the gas buffer 2 is fixed on the box body, and when the gas buffer 2 rotates to the second position, the gas buffer 2 can be taken out from the dismounting opening 131, so that the gas buffer can be dismounted and mounted conveniently.

As shown in fig. 1, the box 1 is provided with at least one air outlet 11 communicated with the interior of the box 1, and the air outlets 11 are all arranged on the top cover of the box 11;

each air outlet 13 is detachably provided with a plug 14.

Specifically, when the experiment is carried out, the plug 14 plugs the air outlet 11 to prevent the air from flowing out from the inside of the box body 1, and when the experiment is finished, the plug 14 can be opened, the exhaust gas mobile phone bag is used for propping against the air outlet 11 to collect the experiment exhaust gas, so that the experiment gas is prevented from polluting the environment.

As shown in fig. 4, at least one air inlet 13 is formed in the outer surface of the case 1; each gas inlet 13 is provided with a gas buffer 2.

Specifically, all around the wall of the box can be provided with air inlets 13, a plurality of air inlets 13 are arranged, and the air buffer 2 is arranged at the air inlets 13, so that the consistency of the concentration of the air in the box 1 can be better ensured, and the accuracy of an experiment result is ensured.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A smoke box with a gas buffer, comprising:

the box body is provided with an air inlet communicated with the inside of the box body, and the side wall of the air inlet is provided with a first limiting block;

the gas buffer penetrates through the air inlet and stretches into the box body, a buffer cavity is formed in the gas buffer, a plurality of air equalizing holes communicated with the buffer cavity are formed in the portion, penetrating into the box body, of the gas buffer, and a second limiting block matched with the first limiting block in a limiting mode is arranged on the outer wall of the gas buffer.

2. The aerosol container with gas buffer of claim 1, wherein the buffer chamber comprises a gas pipe and a sealing plug, a first end of the gas pipe is a closed end, a second end of the gas pipe is provided with an opening, the gas pipe penetrates the gas inlet and enables the first end to extend into the interior of the container, and the sealing plug detachably seals the opening;

wherein, the air equalizing hole is arranged on the air pipe.

3. The smoke box with the gas buffer according to claim 2, wherein the gas transmission pipe comprises a first pipe fitting and a second pipe fitting, the second pipe fitting is sleeved on the first pipe fitting, the gas equalizing holes are formed in the first pipe fitting, the first pipe fitting penetrates into the box body, and the first limiting block is arranged on the first pipe fitting;

the second pipe fitting is exposed out of the box body, the second pipe fitting is made of a soft component capable of being punctured, and the second pipe fitting has elasticity.

4. The aerosol container with a gas damper of claim 3, further comprising a sealing ring, wherein the sealing ring is sleeved outside the gas pipe and is in sealing fit with the gas pipe, and wherein the sealing ring is in sealing fit with the gas inlet.

5. The aerosol container with a gas buffer of claim 4, wherein the outer wall of the first tube is provided with external threads, and the inner wall of the sealing ring is provided with internal threads, and the internal threads are connected with the external threads.

6. The aerosol container with gas buffer of claim 4, wherein the sealing ring abuts an outer sidewall of the container body and seals the gas inlet.

7. The aerosol container with a gas buffer of claim 1, wherein the number of the first limiting blocks is a plurality of blocks, and a plurality of the first limiting blocks are arranged at intervals along the circumferential direction of the gas inlet;

the number of the second limiting blocks is multiple, the multiple second limiting blocks are arranged at intervals along the circumferential direction of the gas buffer, and the multiple second limiting blocks are in one-to-one limit fit with the multiple first limiting blocks.

8. The aerosol container with a gas buffer of claim 7, wherein a disassembly opening is formed between each two adjacent first stoppers, the gas buffer is operable to rotate, and the gas buffer has a first position and a second position, the second stopper is positioned on one side of the first stopper near the inside of the container body when the gas buffer is in the first position, the first stopper is disposed opposite to the disassembly opening when the gas buffer is in the second position, and the second stopper is capable of passing through the disassembly opening.

9. The aerosol container with gas buffer according to claim 1, wherein the container body is provided with at least one gas outlet communicating with the container body, the gas outlets being provided in the top cover of the container body;

each air outlet is detachably provided with a plug.

10. The aerosol container with gas buffer of claim 1, wherein the container outer surface is provided with at least one gas inlet;

and each gas inlet is provided with a gas buffer.