CN219736969U - Vacuum box air pocket sampler - Google Patents
Vacuum box air pocket sampler Download PDFInfo
- Publication number
- CN219736969U CN219736969U CN202321364081.4U CN202321364081U CN219736969U CN 219736969 U CN219736969 U CN 219736969U CN 202321364081 U CN202321364081 U CN 202321364081U CN 219736969 U CN219736969 U CN 219736969U
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- semicircular ring
- vacuum
- air inlet
- pipe
- vacuum box
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- 238000007789 sealing Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a vacuum box air pocket sampler, includes the vacuum casing, and articulates in the sealed lid at vacuum casing top, one side of vacuum casing is provided with the vacuum pump, the opposite side is provided with the intake pipe, the end department of giving vent to anger of intake pipe is connected with the collection air pocket of arranging in the vacuum casing in, the inlet end department of gathering the air pocket is provided with the communicating connecting pipe with the intake pipe, be connected through the connecting unit between connecting pipe and the intake pipe, the connecting unit has the structure that can produce clamping force and cover partial connecting pipe, partial intake pipe simultaneously. The utility model has the beneficial effects that the connecting unit generating clamping force is connected with the connecting pipe and the air inlet pipe simultaneously, so that the tightness can be ensured, the quick assembly can be realized, and the convenience for disassembling and collecting the air bag is also improved.
Description
Technical Field
The utility model relates to the technical field of environment detection, in particular to a vacuum box air bag sampler.
Background
In order to monitor the air quality of the environment, air at a monitoring point needs to be collected and sampled, the existing device for collecting the air generally adopts a vacuum box air bag sampler, the air sampler is a conventional instrument for collecting the air sample in the atmospheric environment or the working environment, and two types of gas collecting methods are adopted: one is to make a large amount of air pass through a liquid absorbent or a solid absorbent to enrich pollutants with lower concentration in the atmosphere, such as an air extraction method and a filter membrane method, and the other is to collect the air containing pollutants by a container, wherein the average concentration of the pollutants in the atmosphere is measured in the sampling time; the latter is measured as the instantaneous concentration or as the average concentration over a short period of time.
Publication number CN218330816U discloses a portable vacuum box air bag sampler comprising: the vacuum pump is arranged on one side of the vacuum shell, and the sampling assembly is arranged on the other side of the vacuum shell;
the sampling assembly comprises an air inlet pipe fixedly connected to the vacuum shell, a valve is arranged on the air inlet pipe, a threaded mounting head is arranged at the end part of the air inlet pipe, a threaded mounting seat matched with the threaded mounting head is connected to the threaded mounting head in a threaded manner, and an acquisition air bag communicated with the air inlet pipe is arranged on one side, away from the threaded mounting head, of the threaded mounting seat. The sampling module of this kind of sample thief passes through intake pipe, screw thread mount pad and gathers the air pocket and constitutes, need rotatory bolt mount pad when dismantling the collection air pocket that is full of gas promptly, this kind of mode is nevertheless can accomplish the dismantlement to gathering the air pocket, but the process is comparatively loaded down with trivial details, need continuously rotate the bolt mount pad, because the bolt mount pad is direct setting on gathering the air pocket, so screw mount pad gathers the air pocket and also can take place corresponding rotation when taking place to rotate, inconvenience has been brought for operating personnel like this, and rotatory unblock initial stage is because the inseparable intensity of connection between screw mount pad and the screw thread mount pad is big (for guaranteeing the gas tightness), still need with the help of appurtenance, it is comparatively inconvenient.
Disclosure of Invention
The present utility model is directed to solving the above-mentioned drawbacks of the prior art and providing a vacuum box air bag sampler for solving the above-mentioned problems.
The utility model solves the technical problems by adopting the technical scheme that: the vacuum box air bag sampler comprises a vacuum shell and a sealing cover hinged to the top of the vacuum shell, wherein a vacuum pump is arranged on one side of the vacuum shell, an air inlet pipe is arranged on the other side of the vacuum shell, an air outlet end of the air inlet pipe is connected with an air collecting bag arranged in the vacuum shell, an air inlet end of the air collecting bag is provided with a connecting pipe communicated with the air inlet pipe, the connecting pipe is connected with the air inlet pipe through a connecting unit, and the connecting unit has a structure capable of generating clamping force and simultaneously covering part of the connecting pipe and part of the air inlet pipe.
Further perfecting, the opposite sides of the connecting pipe and the air inlet pipe are respectively provided with a first extension section and a second extension section, the first extension section is provided with a first assembly matching surface, the second extension section is provided with a second assembly matching surface which is contacted with the first assembly matching surface, and the connecting unit is arranged at the contact position of the first extension section and the second extension section.
Further perfecting, the connecting unit is an annular member, the annular member is provided with an opening for dividing the connecting unit into an upper semicircular ring and a lower semicircular ring, the opening can be closed, and clamping force for clamping the connecting pipe and the air inlet pipe is generated between the upper semicircular ring and the lower semicircular ring when the opening is closed.
Further perfecting, the opening is provided with a through groove penetrating through the upper semicircular ring upwards and a through hole penetrating through the upper semicircular ring downwards and communicated with the through groove, the opening is provided with a locking hole which is arranged in the same diameter as the through hole on the lower semicircular ring, and a locking unit which penetrates through the through hole and is locked and combined with the locking hole is arranged in the through groove.
Further perfecting, the locking unit comprises a main body arranged in the through groove, a locking body which downwards extends from the main body and passes through the through hole to be in threaded connection with the locking hole, and a connecting body which upwards extends out of the through groove, wherein a jacket which partially covers the connecting body is arranged on the connecting body, and a pinching handle which obliquely extends is arranged on the outer peripheral surface of the jacket.
Further perfecting, the upper end of the connector is provided with a slot extending downwards, an inner cavity sleeved on the connector is arranged in the outer sleeve, and an inserting block inserted in the slot is arranged on the inner peripheral surface of the inner cavity.
Further perfecting, the lower end surface of the handle is a corrugated surface avoiding the upper semicircular ring when the handle rotates.
Further perfecting, sealing patches are arranged on the inner circumferential surface of the upper semicircular ring and the inner circumferential surface of the lower semicircular ring.
Further perfecting, the side surface of the inner wall of the vacuum shell and the position corresponding to the air inlet pipe are provided with sealing gaskets.
The beneficial effects of the utility model are as follows:
the connecting unit capable of generating clamping force is connected with the connecting pipe and the air inlet pipe simultaneously, so that tightness can be guaranteed, rapid assembly can be realized, and convenience in disassembling and collecting the air bag is improved.
Drawings
FIG. 1 is a schematic diagram of the present utility model in full section;
FIG. 2 is a schematic diagram of an explosion structure of a connecting unit, a connecting pipe and an air inlet pipe according to the utility model;
fig. 3 is a schematic diagram of the connection unit of the present utility model in full section.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
referring to the drawings: the vacuum box air bag sampler comprises a vacuum shell 1 and a sealing cover 2 hinged to the top of the vacuum shell 1, wherein a vacuum pump 3 is arranged on one side of the vacuum shell 1, an air inlet pipe 4 is arranged on the other side of the vacuum shell, an air outlet end of the air inlet pipe 4 is connected with an air collecting bag 5 arranged in the vacuum shell 1, an air inlet end of the air collecting bag 5 is provided with a connecting pipe 6 communicated with the air inlet pipe 4, the connecting pipe 6 is connected with the air inlet pipe 4 through a connecting unit 7, and the connecting unit 7 has a structure capable of generating clamping force and simultaneously covering part of the connecting pipe 6 and part of the air inlet pipe 4. The principle of the utility model is that the connecting pipe 6 and the air inlet pipe 4 are connected in a clamping manner, and the tightness can be ensured, so that the air bag 5 can be quickly assembled and disassembled, and the connecting pipe 6 and the air inlet pipe 4 are more convenient and faster to connect compared with the prior art.
The connecting pipe 6 and the air inlet pipe 4 are respectively provided with a first extension section 61 and a second extension section 41 on opposite sides, the first extension section 61 is provided with a first assembling matching surface 61-a, the second extension section 41 is provided with a second assembling matching surface 41-a contacted with the first assembling matching surface 61-a, and the connecting unit 7 is arranged at the contact position of the first extension section 61 and the second extension section 41. The outer diameter of the connecting pipe 6 is equal to the outer diameter of the air inlet pipe 4, the outer diameter of the first extension 61 is equal to the outer diameter of the second extension 41 but smaller than the outer diameter of the connecting pipe 6 or the air inlet pipe 4, so that the connecting unit 7 can move on the first extension 61 and the second extension 41, generally on the second extension 41, when the connecting pipe 6 and the air inlet pipe 4 are not clamped, and the length of the second extension 41 also defines the movement distance on which the connecting unit 7 is allowed, and the stepped configuration also gives the function of abutting the connecting unit 7 against the limit distance, so that the vertical upward extraction mode can be realized when the collecting air bag 5 is extracted.
The connecting unit 7 is an annular member, the annular member is provided with an opening 8 for dividing the connecting unit into an upper semicircular ring 71 and a lower semicircular ring 72, the opening 8 can be closed, and clamping force for clamping the connecting pipe 6 and the air inlet pipe 4 is generated between the upper semicircular ring 71 and the lower semicircular ring 72 when the connecting unit is closed, so that the connecting unit 7 has the capability of generating the clamping force, namely, the connecting unit is generated when the opening 8 is closed, the contact part of the first extending section 61 and the second extending section 41 is sealed, and leakage is avoided when sampling gas is extracted.
The opening 8 is provided with a through groove 71-a penetrating the upper semicircular ring 71 upwards and a through hole 71-b penetrating the upper semicircular ring 71 downwards and communicating with the through groove 71-a, the opening 8 is provided with a locking hole 72-a which is arranged in the same diameter as the through hole 71-b on the lower semicircular ring 72, the through groove 71-a is internally provided with a locking unit 9 which penetrates through the through hole 71-b and is in locking combination with the locking hole 72-a, and a counter bore configuration is formed through the through groove 71-a and the through hole 71-b which are arranged on the upper semicircular ring 71, so that the locking unit 9 can provide upper support for the locking unit 9 through the counter bore configuration when being placed in, and thus the locking unit 9 can be prevented from shaking when the locking unit 9 is in locking combination with the locking hole 72-a through a locking means, and the locking efficiency and the locking effect are improved. In the present embodiment, the through groove 71-a, the through hole 71-b, and the locking hole 72-a are all in a circular hole-like configuration, the through hole 71-b coincides with the inner diameter of the locking hole 72-a, and the locking hole 72-a is a screw hole.
The locking unit 9 comprises a main body 91 arranged in the through groove 71-a, a locking body 92 which extends downwards from the main body 91 and passes through the through hole 71-b to be in threaded connection with the locking hole 72-a, and a connecting body 93 which extends upwards and passes through the through groove 71-a, wherein a jacket 93-a which covers part of the connecting body 93 is arranged on the connecting body 93, a pinching handle 10 which extends obliquely is arranged on the outer peripheral surface of the jacket 93-a, the locking unit 9 is of a structure that the locking unit is provided with the main body 91 which can be arranged in the through groove 71-a and the locking body 92 which can pass through the through hole 71-b to be in threaded connection with the locking hole 72-a, and meanwhile, the connecting body 93 which is used for being connected with the jacket 93-a, the pinching handle 10 arranged on the jacket 93-a is convenient for an operator to hold and on the other hand can realize the rotation of the locking unit 9, so that the locking body 92 and the locking hole 72-a are locked and unlocked by the forward rotation of an auxiliary tool are also required to be more convenient and quicker than the prior art.
The upper end of the connector 93 is provided with a slot 93-b extending downwards, an inner cavity 93-a1 sleeved on the connector 93 is arranged in the outer sleeve 93-a, an insert block 93-a11 inserted in the slot 93-b is arranged on the inner peripheral surface of the inner cavity 93-a1, and the combination of the slot 93-b and the insert block 93-a11 is used for avoiding that the outer sleeve 93-a rotates along the axis of the connector 93 when the outer sleeve 93-a is operated to rotate, because the rotation causes the acting force exerted by an operator to be unable to act on the locking unit 9, thereby avoiding the situation in this way.
The lower end face of the handle 10 is a corrugated surface avoiding the upper semicircular ring 71 when the handle 10 rotates, and the corrugated surface enables the lower end face of the handle 10 to be in an uneven state, so that the handle 10 can be effectively prevented from being in contact with the upper semicircular ring 71, and the handle 10 can be continuously rotated during locking/unlocking, namely, the locking unit 9 can be continuously rotated, and locking/unlocking is faster.
The inner ring peripheral surface of the upper semicircular ring 71 and the inner ring peripheral surface of the lower semicircular ring 72 are respectively provided with a sealing patch 20, and the sealing patch 20 enables better matching tightness between the connecting unit 7 and the connecting pipe 6 as well as between the connecting pipe and the air inlet pipe 4, and meanwhile enables better sealing performance.
The side of the inner wall of the vacuum shell 1 and the position corresponding to the air inlet pipe 4 are provided with the sealing gasket 30, so that the tightness of the vacuum shell 1 corresponding to the position of the air inlet pipe 4 is improved, and the vacuum state of the vacuum shell 1 is prevented from being broken when external air enters.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (9)
1. The utility model provides a vacuum box air pocket sampler, includes vacuum housing (1) and articulates in sealed lid (2) at vacuum housing (1) top, and one side of vacuum housing (1) is provided with vacuum pump (3), and the opposite side is provided with intake pipe (4), and the end department of giving vent to anger of intake pipe (4) is connected with collection air pocket (5) of arranging in vacuum housing (1), its characterized in that: the air inlet end of the collection air bag (5) is provided with a connecting pipe (6) communicated with the air inlet pipe (4), the connecting pipe (6) is connected with the air inlet pipe (4) through a connecting unit (7), and the connecting unit (7) has a structure capable of generating clamping force and simultaneously covering part of the connecting pipe (6) and part of the air inlet pipe (4).
2. The vacuum box air bag sampler of claim 1 wherein: the connecting pipe (6) and the opposite side of the air inlet pipe (4) are respectively provided with a first extension section (61) and a second extension section (41), the first extension section (61) is provided with a first assembling matching surface (61-a), the second extension section (41) is provided with a second assembling matching surface (41-a) which is contacted with the first assembling matching surface (61-a), and the connecting unit (7) is arranged at the contact position of the first extension section (61) and the second extension section (41).
3. The vacuum box air bag sampler of claim 2 wherein: the connecting unit (7) is an annular member, an opening (8) for dividing the connecting unit into an upper semicircular ring (71) and a lower semicircular ring (72) is formed in the annular member, and the opening (8) can be closed and a clamping force for clamping the connecting pipe (6) and the air inlet pipe (4) is generated between the upper semicircular ring (71) and the lower semicircular ring (72) when the opening is closed.
4. A vacuum box air bag sampler according to claim 3 and wherein: the opening (8) is provided with a through groove (71-a) penetrating the upper semicircular ring (71) upwards and a through hole (71-b) penetrating the upper semicircular ring (71) downwards and communicated with the through groove (71-a), the opening (8) is provided with a locking hole (72-a) which is arranged in the same diameter as the through hole (71-b) on the lower semicircular ring (72), and a locking unit (9) penetrating the through hole (71-b) and locked and combined with the locking hole (72-a) is arranged in the through groove (71-a).
5. The vacuum box air bag sampler of claim 4 wherein: the locking unit (9) comprises a main body (91) arranged in the through groove (71-a), a locking body (92) which downwards extends from the main body (91) and penetrates through the through hole (71-b) to be in threaded connection with the locking hole (72-a), and a connecting body (93) which upwards extends out of the through groove (71-a), wherein a jacket (93-a) for coating part of the connecting body (93) is arranged on the connecting body (93), and a pinching handle (10) which obliquely extends is arranged on the outer peripheral surface of the jacket (93-a).
6. The vacuum box air bag sampler of claim 5 wherein: the upper end of the connector (93) is provided with a slot (93-b) extending downwards, an inner cavity (93-a 1) sleeved on the connector (93) is arranged in the outer sleeve (93-a), and an inserting block (93-a 11) inserted in the slot (93-b) is arranged on the inner peripheral surface of the inner cavity (93-a 1).
7. The vacuum box air bag sampler of claim 5 wherein: the lower end surface of the handle (10) is a corrugated surface which avoids the upper semicircular ring (71) when the handle (10) rotates.
8. A vacuum box air bag sampler according to claim 3 and wherein: sealing patches (20) are arranged on the inner circumferential surface of the upper semicircular ring (71) and the inner circumferential surface of the lower semicircular ring (72).
9. The vacuum box air bag sampler of claim 1 wherein: and a sealing gasket (30) is arranged on the side surface of the inner wall of the vacuum shell (1) and at a position corresponding to the air inlet pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321364081.4U CN219736969U (en) | 2023-05-31 | 2023-05-31 | Vacuum box air pocket sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321364081.4U CN219736969U (en) | 2023-05-31 | 2023-05-31 | Vacuum box air pocket sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219736969U true CN219736969U (en) | 2023-09-22 |
Family
ID=88060815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321364081.4U Active CN219736969U (en) | 2023-05-31 | 2023-05-31 | Vacuum box air pocket sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219736969U (en) |
-
2023
- 2023-05-31 CN CN202321364081.4U patent/CN219736969U/en active Active
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| GR01 | Patent grant |