CN221207216U - Filtering device for toxic gas alarm - Google Patents
Filtering device for toxic gas alarm Download PDFInfo
- Publication number
- CN221207216U CN221207216U CN202322911543.6U CN202322911543U CN221207216U CN 221207216 U CN221207216 U CN 221207216U CN 202322911543 U CN202322911543 U CN 202322911543U CN 221207216 U CN221207216 U CN 221207216U
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- Prior art keywords
- pressing
- toxic gas
- sealing
- sleeve
- fixing
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- 239000002341 toxic gas Substances 0.000 title claims abstract description 32
- 238000001914 filtration Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000008093 supporting effect Effects 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Emergency Alarm Devices (AREA)
Abstract
The utility model provides a filtering device for a toxic gas alarm, which comprises a fixing structure, a mounting structure, a fixing sleeve, a protecting structure, a filter screen structure, a compressing mechanism and a sealing structure, wherein the fixing sleeve is arranged on the fixing structure; the middle part of the fixing structure is provided with an opening which can be matched with the air inlet of the toxic gas decomposer, and the fixing structure is used for connecting the toxic gas alarm shell; the compressing mechanism and the filter screen structure are arranged on the inner side of the fixed sleeve, one end of the compressing mechanism props against the filter screen structure, the other end of the compressing mechanism props against the sealing structure, and the sealing structure is used for sealing a gap between the mounting structure and the fixed sleeve. The filtering device for the toxic gas alarm solves the problem that the filtering device in the related art cannot be disassembled outside, so that an operator cannot disassemble the filtering device outside, and further the maintenance cost is increased.
Description
Technical Field
The utility model belongs to the technical field of toxic gas detection, and particularly relates to a filtering device for a toxic gas alarm.
Background
A toxic gas alarm is a device for detecting and warning harmful gases. The filter device is an important component, and is mainly used for filtering harmful substances in the air so as to ensure that the alarm only responds to real dangerous situations. Typically, the filter element needs to be replaced periodically to maintain the effectiveness and accuracy of the alarm. Since the related art filter device cannot be disassembled outside, and thus an operator cannot disassemble the filter device outside, it becomes difficult to replace the filter cartridge. If the filter device cannot be easily detached, an operator needs to use special tools or take complicated steps to complete replacement of the filter element, thereby causing the problem of increased maintenance cost.
Disclosure of Invention
In view of this, the present utility model aims to solve at least one of the related technical problems to some extent.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a filtering device for a toxic gas alarm comprises a fixed structure, a mounting structure, a fixed sleeve, a protective structure, a filter screen structure, a pressing mechanism and a sealing structure;
The middle part of the fixing structure is provided with an opening which can be matched with the air inlet of the toxic gas decomposer, and the fixing structure is used for connecting with the toxic gas alarm shell;
One end of the mounting structure is connected with the fixing structure, the other end of the mounting structure is detachably connected with the fixing sleeve through a threaded structure, the sealing structure is arranged on the inner side of the mounting structure, and the end part, far away from the mounting structure, of the fixing sleeve is provided with the protection structure;
the pressing mechanism and the filter screen structure are arranged on the inner side of the fixed sleeve, one end of the pressing mechanism abuts against the filter screen structure, the other end of the pressing mechanism abuts against the sealing structure, and the sealing structure is used for sealing a gap between the mounting structure and the fixed sleeve.
Further, the fixed structure comprises a fixed plate and an annular bulge, the annular bulge is arranged at the center of the fixed plate, the opening is formed in the middle of the annular bulge, the mounting structure is of a sleeve structure, and the mounting structure is rotationally connected with the annular bulge.
Further, seal structure includes annular support cover, sealing rubber circle and a plurality of clamp rod, annular support cover section is the L type, annular support cover the crimp with annular protruding cooperation, sealing rubber circle sets up annular support cover up end, annular sealing rubber circle is used for sealedly mounting structure with clearance between the fixed sleeve, a plurality of the clamp rod all with annular support cover rigid coupling, a plurality of the clamp rod circumference evenly arranged sets up sealing rubber circle is inboard.
Further, the hold-down mechanism includes two first clamp plates, two second clamp plates and a plurality of hold-down springs, one first clamp plate is located two between the second clamp plate, two first clamp plates pass through a plurality of head rods and connect, two the second clamp plates pass through a plurality of second connecting rods and connect, a plurality of hold-down springs all set up hold-down mechanism is located between the first clamp plate and the second clamp plate at middle part.
Furthermore, each of the first connecting rod and the second connecting rod is sleeved with one compression spring.
Further, the end face of the second pressing plate, which is used for propping against the filter screen structure, of the pressing mechanism is provided with a plurality of pressing protrusions.
Further, the protection structure comprises a protection ring and a plurality of connecting rods, and the protection structure is connected with the fixing sleeve through a plurality of connecting rods.
Compared with the prior art, the filtering device for the toxic gas alarm has the following advantages:
According to the filtering device for the toxic gas alarm, one end of the installation structure is connected with the fixing structure, and the other end of the installation structure is detachably connected with the fixing sleeve through the thread structure. The filter device is easy to install and maintain, and the filter screen structure is convenient to replace and clean. The fixing structure is used for connecting the toxic gas alarm shell and is provided with an opening which can be matched with the air inlet of the toxic gas decomposer. The fixed structure can provide stable support and ensure tight connection between the filtering device and the alarm. The sealing structure is arranged on the inner side of the mounting structure and is used for sealing a gap between the mounting structure and the fixed sleeve. Through using annular support sleeve, sealing rubber circle and hold-down bar, seal structure can prevent gaseous leakage effectively, ensures filter effect and system's reliability. The fixing structure comprises an annular bulge, the sealing structure comprises an annular supporting sleeve, and the cooperation between the annular bulge and the sealing structure can provide good connection and supporting effects. Which helps to enhance the stability and durability of the device. The compressing mechanism consists of a first pressing plate, a second pressing plate and a compressing spring. The pressure and the tightness between the filter layer and the fixed part can be flexibly adjusted by adjusting the quantity and the pre-pressure of the compression springs so as to adapt to different filter requirements.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of a filtering device for a toxic gas alarm according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a filter screen according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a compressing mechanism according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a combination structure of a mounting structure and a fixing structure according to an embodiment of the present utility model;
Fig. 5 is a schematic view of a seal structure according to an embodiment of the utility model.
Reference numerals illustrate:
101. A fixing plate; 201. a mounting structure; 301. a fixed sleeve; 302. a protective structure; 303. a thread structure; 401. a first platen; 402. a second pressing plate; 403. pressing the bulge; 404. a compression spring; 501. a filter screen structure; 601. a pressing rod; 602. an annular support sleeve; 603. and (5) sealing the rubber gasket.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. 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 can be understood by those of ordinary skill in the art in a specific case.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
A filtering device for a toxic gas alarm, as shown in fig. 1, comprises a fixed structure, a mounting structure 201, a fixed sleeve 301, a protective structure 302, a filter screen structure 501, a pressing mechanism and a sealing structure; the middle part of the fixing structure is provided with an opening which can be matched with the air inlet of the toxic gas decomposer, and the fixing structure is used for connecting the toxic gas alarm shell;
One end of the mounting structure 201 is connected with the fixed structure, the other end of the mounting structure 201 is detachably connected with the fixed sleeve 301 through the threaded structure 303, the sealing structure is arranged on the inner side of the mounting structure 201, and the end part, far away from the mounting structure 201, of the fixed sleeve 301 is provided with the protective structure 302; the compressing mechanism and the filter structure 501 are both arranged on the inner side of the fixed sleeve 301, one end of the compressing mechanism is propped against the filter structure 501, the other end of the compressing mechanism is propped against the sealing structure, and the sealing structure is used for sealing a gap between the mounting structure 201 and the fixed sleeve 301. One end of the mounting structure 201 is connected with the fixing structure, and the other end is detachably connected with the fixing sleeve 301 through the thread structure 303. The filter device is easy to install and maintain, the filter screen structure 501 is convenient to replace and clean, the filter screen structure 501 in the embodiment comprises a steel wire mesh and a polypropylene film, the polypropylene film is covered on the inner side of the steel wire mesh, and the outer edge of the filter screen structure 501 can be matched with the inner wall of the fixed sleeve 301. The fixing structure is used for connecting the toxic gas alarm shell and is provided with an opening which can be matched with the air inlet of the toxic gas decomposer. The fixed structure can provide stable support and ensure tight connection between the filtering device and the alarm.
The fixed knot constructs including fixed plate 101 and annular arch, and annular arch sets up in fixed plate 101 central point put, and the opening sets up at annular protruding middle part, and mounting structure 201 is sleeve structure, and mounting structure 201 rotates with annular arch to be connected.
As shown in fig. 5, the sealing structure comprises an annular supporting sleeve 602, a sealing rubber ring and a plurality of pressing rods 601, the section of the annular supporting sleeve 602 is L-shaped, the bent edge of the annular supporting sleeve 602 is matched with the annular bulge, the sealing rubber ring is arranged on the upper end face of the annular supporting sleeve 602, the annular sealing rubber ring is used for sealing a gap between the mounting structure 201 and the fixing sleeve 301, the pressing rods 601 are fixedly connected with the annular supporting sleeve 602, and the pressing rods 601 are uniformly arranged on the inner side of the sealing rubber ring in circumference. A sealing structure is provided inside the mounting structure 201 for sealing a gap between the mounting structure 201 and the fixing sleeve 301. By using the annular support sleeve 602, the sealing rubber ring, the pressing rod 601 and the like, the sealing structure can effectively prevent gas from leaking out from the gap. It is ensured that the toxic gases are completely filtered out and that unfiltered gases are prevented from entering the alarm or the environment. By using the annular supporting sleeve 602, the sealing rubber ring and the pressing rod 601, the sealing structure can effectively prevent gas leakage, ensuring the filtering effect and the reliability of the system. The sealing structure is used to seal the gap between the mounting structure 201 and the stationary sleeve 301. The fixed structure comprises an annular protrusion and the sealing structure comprises an annular support sleeve 602, the cooperation between the two being capable of providing a good sealing and supporting effect. Which helps to enhance the stability and durability of the device.
As shown in fig. 3, the pressing mechanism includes two first pressing plates 401, two second pressing plates 402 and a plurality of pressing springs 404, wherein one first pressing plate 401 is located between the two second pressing plates 402, the two first pressing plates 401 are connected through a plurality of first connecting rods, the two second pressing plates 402 are connected through a plurality of second connecting rods, and the plurality of pressing springs 404 are all disposed between the first pressing plate 401 and the second pressing plate 402, which are located in the middle of the pressing mechanism. In this embodiment, a compression spring 404 is sleeved outside each of the first connecting rod and the second connecting rod. The end surface of the pressing mechanism, which is used for abutting against the second pressing plate 402 of the filter screen structure 501, is provided with a plurality of pressing protrusions 403. The pressing mechanism is composed of a first pressing plate 401, a second pressing plate 402 and a pressing spring 404. By adjusting the number and pre-pressure of the hold-down springs 404, the pressure and tightness between the filter layer and the fixed portion can be flexibly adjusted to accommodate different filter requirements.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. A filter device for a toxic gas alarm, characterized by: the device comprises a fixed structure, a mounting structure (201), a fixed sleeve (301), a protective structure (302), a filter screen structure (501), a pressing mechanism and a sealing structure;
The middle part of the fixing structure is provided with an opening which can be matched with the air inlet of the toxic gas decomposer, and the fixing structure is used for connecting with the toxic gas alarm shell;
One end of the mounting structure (201) is connected with the fixing structure, the other end of the mounting structure (201) is detachably connected with the fixing sleeve (301) through a thread structure (303), the sealing structure is arranged on the inner side of the mounting structure (201), and the end part, far away from the mounting structure (201), of the fixing sleeve (301) is provided with the protection structure (302);
The pressing mechanism and the filter screen structure (501) are arranged on the inner side of the fixed sleeve (301), one end of the pressing mechanism abuts against the filter screen structure (501), the other end of the pressing mechanism abuts against the sealing structure, and the sealing structure is used for sealing a gap between the mounting structure (201) and the fixed sleeve (301).
2. A filter arrangement for a toxic gas alarm according to claim 1, wherein: the fixing structure comprises a fixing plate (101) and an annular protrusion, the annular protrusion is arranged at the center of the fixing plate (101), the opening is formed in the middle of the annular protrusion, the mounting structure (201) is of a sleeve structure, and the mounting structure (201) is rotationally connected with the annular protrusion.
3. A filter arrangement for a toxic gas alarm according to claim 2, wherein: the sealing structure comprises an annular supporting sleeve (602), a sealing rubber ring and a plurality of pressing rods (601), wherein the cross section of the annular supporting sleeve (602) is L-shaped, the bent edge of the annular supporting sleeve (602) is matched with the annular protrusion, the sealing rubber ring is arranged on the upper end face of the annular supporting sleeve (602), the sealing rubber ring is used for sealing a gap between the mounting structure (201) and the fixing sleeve (301), the pressing rods (601) are fixedly connected with the annular supporting sleeve (602), and the pressing rods (601) are uniformly arranged on the circumference of the inner side of the sealing rubber ring.
4. A filter arrangement for a toxic gas alarm according to any one of claims 1-3, characterized in that: the pressing mechanism comprises two first pressing plates (401), two second pressing plates (402) and a plurality of pressing springs (404), one pressing plate (401) is located between the two second pressing plates (402), the two pressing plates (401) are connected through a plurality of first connecting rods, the two pressing plates (402) are connected through a plurality of second connecting rods, and the pressing springs (404) are all arranged between the pressing mechanism and the first pressing plates (401) and the second pressing plates (402) located in the middle.
5. The filtering device for a toxic gas alarm according to claim 4, wherein: and each of the first connecting rod and the second connecting rod is sleeved with one compression spring (404) outside.
6. The filtering device for a toxic gas alarm according to claim 4, wherein: the pressing mechanism is used for propping against the end face of the second pressing plate (402) of the filter screen structure (501) and is provided with a plurality of pressing protrusions (403).
7. The filtering device for a toxic gas alarm according to claim 4, wherein: the protection structure (302) comprises a protection ring and a plurality of connecting rods, and the protection is also connected with the fixed sleeve (301) through a plurality of connecting rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322911543.6U CN221207216U (en) | 2023-10-30 | 2023-10-30 | Filtering device for toxic gas alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322911543.6U CN221207216U (en) | 2023-10-30 | 2023-10-30 | Filtering device for toxic gas alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221207216U true CN221207216U (en) | 2024-06-25 |
Family
ID=91541268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322911543.6U Active CN221207216U (en) | 2023-10-30 | 2023-10-30 | Filtering device for toxic gas alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221207216U (en) |
-
2023
- 2023-10-30 CN CN202322911543.6U patent/CN221207216U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |