CN221014229U - Automatic closing device for air inlet of air blower - Google Patents
Automatic closing device for air inlet of air blower Download PDFInfo
- Publication number
- CN221014229U CN221014229U CN202322460466.7U CN202322460466U CN221014229U CN 221014229 U CN221014229 U CN 221014229U CN 202322460466 U CN202322460466 U CN 202322460466U CN 221014229 U CN221014229 U CN 221014229U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- air blower
- valve plate
- air
- canister
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000011900 installation process Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 231100000614 poison Toxicity 0.000 abstract 1
- 231100000572 poisoning Toxicity 0.000 abstract 1
- 230000000607 poisoning effect Effects 0.000 abstract 1
- 230000007096 poisonous effect Effects 0.000 abstract 1
- 239000002341 toxic gas Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an automatic closing device of an air inlet of an air blower.A supporting rod is connected to the upper surface of a fixed base and is connected with the air inlet of a body of the air blower, and the upper surface of the fixed base is connected with a valve mechanism through a spring; the valve mechanism comprises a valve plate, and the lower surface of the valve plate is connected with the top end of the spring; the upper surface of the valve plate is connected with a sealing gasket which is in interference fit with the air inlet of the air blower body; the center of the upper surface of the valve plate is connected with a push rod, and the push rod extends into the blower body through a jack at the center of the air inlet of the blower body; the device has solved prior art when changing the canister, and dismantlement in-process can't seal, leads to poisonous gas to endanger personal safety, and dismantles the sealed dismantlement of lid and the longer problem of auxiliary work step loaded down with trivial details time with the installation process more consuming time when dismantling, has simple structure, simple operation, can seal fast and open and close, can effectively avoid the characteristics of the perhaps poisoning problem of operation in-process canister replacement process.
Description
Technical Field
The utility model belongs to the technical field of individual protective mask air blowers, and particularly relates to an automatic closing device for an air inlet of an air blower.
Background
The air inlet of the conventional breathing mask air feeder is of an open structure and is provided with a screwed sealing cover, the sealing cover is required to be manually detached when the canister is connected, then the canister is installed, and the sealing cover is required to be manually installed again when the canister is not connected; the blower of this construction has two significant disadvantages:
1, when the canister is used in a battle in a toxic environment, the canister is in penetration failure or the canister needs to be replaced due to other reasons, and in the process of disassembling the original canister and replacing the new canister, toxic gas directly enters the air blower to be sucked into a human body, so that the safety of users is seriously critical, and the requirement of safe use is not met; 2, in the installation process before use, the sealing cover is required to be detached firstly, then the canister can be installed, the time consumption for the disassembly and the installation process of the sealing cover is more, the auxiliary working steps are complicated and longer, and the requirements of quick and efficient use are not met. Therefore, there is a need to design an automatic closing device for an air inlet of an air blower to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to provide an automatic closing device for an air inlet of an air blower, which solves the problems that in the prior art, when a canister is replaced, the disassembly process cannot be sealed, so that toxic gas is harmful to personal safety, the disassembly and the installation processes of a sealing cover are more time-consuming, and the auxiliary working steps are complicated and longer.
In order to solve the technical problems, the utility model adopts the following technical scheme:
An automatic closing device of an air inlet of an air blower comprises a fixed base, wherein the upper surface of the fixed base is connected with a plurality of support rods, and the support rods are connected with mounting holes of an outer ring of the air inlet of the air blower body; the upper surface of the fixed base is connected with the valve mechanism through a spring.
Preferably, the valve mechanism comprises a valve plate, the lower surface of the valve plate is connected with a three-jaw spring fixing structure, and the three-jaw spring fixing structure is connected with the top end of the spring.
Preferably, the upper surface of the valve plate is connected with a sealing gasket which is in interference fit with the air inlet of the air blower body.
Preferably, the center of the upper surface of the valve plate is connected with a push rod, and the push rod extends into the air blower body through an insertion hole in the center of the air inlet of the air blower body.
Preferably, the middle ring area in the air inlet of the air blower body is provided with ventilation holes.
Further, the rubber sealing gasket at the joint part of the valve plate has scalability, and the tightness between the contact points of the valve plate and the inner wall of the ventilation opening is improved.
Further, the air blower is installed in cooperation with the canister, and the upper part of the air blower body is of an internal thread structure and is in threaded rotary connection with the canister.
The beneficial effects of the utility model are as follows:
the device has the advantages that the valve plate structure capable of being automatically closed is arranged, so that the valve plate can be automatically pushed downwards when the canister is installed, the air inlet of the air blower is opened, and when the canister needs to be replaced, the valve plate is reset under the action of the spring to complete the closing of the air inlet, thereby ensuring the sealing and ensuring the replacement operation to be safer; the operation is simpler and more convenient, the tightness is good, the replacement of the canister in the operation environment is realized, no potential safety hazard is caused, and the convenience and the reliability are improved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model in a closed state;
FIG. 2 is a schematic cross-sectional view of the present utility model in an open state;
FIG. 3 is a schematic top view of an air inlet of the blower body of the present utility model;
in the figure: the air blower comprises a fixed base 1, a spring 2, a supporting rod 11, a valve plate 3, a sealing gasket 4, an air blower body 5, a mounting hole 51, an inserting hole 52, a ventilation hole 53, a push rod 6 and a canister 7.
Detailed Description
As shown in fig. 1-3, an automatic closing device for an air inlet of an air blower comprises a fixed base 1, wherein a plurality of support rods 11 are connected to the upper surface of the fixed base 1, and the support rods 11 are connected with mounting holes 51 of an outer ring of the air inlet of the air blower body 5; the upper surface of the fixed base 1 is connected with a valve mechanism through a spring 2.
Preferably, the valve mechanism comprises a valve plate 3, the lower surface of the valve plate 3 is connected with a three-jaw spring 2 fixing structure, and the three-jaw spring 2 fixing structure is connected with the top end of the spring 2.
Preferably, the upper surface of the valve plate 3 is connected with a sealing gasket 4 which is in interference fit with the air inlet of the air blower body 5.
Preferably, the center of the upper surface of the valve plate 3 is connected with a push rod 6, and the push rod 6 extends into the blower body 5 through a jack 52 at the center of the air inlet of the blower body 5.
Preferably, the ventilation holes 53 are provided in the middle ring area of the air inlet of the blower body 5.
Further, the rubber sealing gasket 4 at the joint part of the valve plate 3 has the scalability, and the tightness between the contact points of the valve plate 3 and the inner wall of the ventilation opening is improved.
Further, the blower is installed in cooperation with the canister, and the upper part of the blower body 5 is of an internal thread structure and is rotatably connected with the canister through threads.
The working principle of the utility model is as follows:
When the canister 7 is installed in use, the push rod 6 structure of the valve plate 3 is pushed by the canister 7, the spring 2 is compressed, the valve plate 3 integrally moves inwards, the valve plate 3 and the sealing gasket 4 are separated from the inner wall of the air inlet, and the air inlet is opened; when the canister 7 is disassembled, the pressure of the canister 7 on the structure of the push rod 6 is eliminated, the valve plate 3 and the sealing gasket 4 are pushed to move outwards by the spring 2 in a pressed state, and the valve plate is tightly attached to the inner wall of the air inlet, so that the automatic closing of the device is realized.
The above embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments of the present utility model may be arbitrarily combined with each other without collision. The protection scope of the present utility model is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (3)
1. An automatic closing device of air inlet of air blower, its characterized in that: the air blower comprises a fixed base (1), wherein the upper surface of the fixed base (1) is connected with a plurality of support rods (11), and the support rods (11) are connected with mounting holes (51) of the outer ring of an air inlet of an air blower body (5); the upper surface of the fixed base (1) is connected with the valve mechanism through a spring (2); the valve mechanism comprises a valve block (3), the lower surface of the valve block (3) is connected with a three-jaw spring fixing structure, the three-jaw spring fixing structure is connected with the top end of a spring (2), the center of the upper surface of the valve block (3) is connected with a push rod (6), and the push rod (6) extends into the air blower body (5) through a jack (52) at the center of an air inlet of the air blower body (5).
2. The automatic air inlet closing device of an air blower according to claim 1, wherein: the upper surface of the valve plate (3) is connected with a sealing gasket (4) which is in interference fit with the air inlet of the air blower body (5).
3. The automatic air inlet closing device of an air blower according to claim 1, wherein: and a ventilation hole (53) is formed in the middle ring area of the air inlet of the air blower body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322460466.7U CN221014229U (en) | 2023-09-11 | 2023-09-11 | Automatic closing device for air inlet of air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322460466.7U CN221014229U (en) | 2023-09-11 | 2023-09-11 | Automatic closing device for air inlet of air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221014229U true CN221014229U (en) | 2024-05-28 |
Family
ID=91175795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322460466.7U Active CN221014229U (en) | 2023-09-11 | 2023-09-11 | Automatic closing device for air inlet of air blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221014229U (en) |
-
2023
- 2023-09-11 CN CN202322460466.7U patent/CN221014229U/en active Active
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| GR01 | Patent grant |