CN213418727U - Sealing mechanism for hand wheel of protective airtight door - Google Patents
Sealing mechanism for hand wheel of protective airtight door Download PDFInfo
- Publication number
- CN213418727U CN213418727U CN202022092376.3U CN202022092376U CN213418727U CN 213418727 U CN213418727 U CN 213418727U CN 202022092376 U CN202022092376 U CN 202022092376U CN 213418727 U CN213418727 U CN 213418727U
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- hand wheel
- door
- sealing mechanism
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- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The utility model provides a sealing mechanism for hand wheel of protective airtight door, the hand wheel is including running through the hand wheel axle of installing on the door leaf, sealing mechanism includes: the sealing cover is provided with a first through hole for the hand wheel shaft to pass through, and a clamping groove is formed in the first through hole; the sealing ring is arranged in the clamping groove of the sealing cover; the rubber pad is arranged between the sealing cover and the door leaf, and a second through hole for the hand wheel shaft to pass through is formed in the rubber pad; the sealing cover and the rubber pad are fixed on the door leaf through a fastening piece. According to the utility model discloses, optimize traditional welding process for assembly process, both made things convenient for follow-up installation and debugging, avoided again because of the deformation inefficacy that hot working caused the sealing washer, ensured effective implementation of sealing measure, also solved the defect that the sealing washer can't be changed in the follow-up maintenance simultaneously, ensured that each part homoenergetic of protective sealed door in the service life can reach effective protection.
Description
Technical Field
The utility model relates to a people's air defense door field, more specifically relate to a sealing mechanism for hand wheel of protective airtight door.
Background
In the civil air defense engineering, a civil air defense door is required to be used at the orifice to block external shock waves, toxic gases and the like, so as to prevent internal personnel and internal equipment from being damaged. During wartime, the protective door is required to be in a completely closed state, and the hand wheel is required to be rotated to drive components such as a lock to operate in the opening and closing processes of the door leaf. The sealing of the prior art device is performed by welding a sealing cover on a panel to seal a hand wheel shaft as shown in fig. 1, wherein the hand wheel shaft 6 ' penetrates through an inner panel 5 ' of a door leaf, an O-shaped sealing ring 1 ' is pre-installed in the sealing cover 2 ', the sealing cover 2 ' is fixed on the inner panel 5 ' of the door leaf around the hand wheel shaft 6 ' by welding, and the sealing of the hand wheel shaft 6 ' is realized by the O-shaped sealing ring 1 '.
Because the designed service life of the civil air defense door is 50 years, and the general designed replacement life of rubber parts such as O-shaped ring sealing rings is 10 years, the mode is not beneficial to later maintenance and replacement of the O-shaped sealing rings. In addition, the sealing reliability can be guaranteed only by fully welding the periphery of the sealing cover with the inner panel of the door leaf, however, in actual welding, the sealing cover is easily overheated to cause deformation failure of the O-shaped sealing ring and lose sealing function due to improper control of temperature and welding process, so that the sealing performance of the protective door is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sealing mechanism for protective airtight door's hand wheel to solve the sealed inefficacy of hand wheel of protective airtight door among the prior art, thereby cause the not good problem of protective airtight door overall sealing performance.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a sealing mechanism for a hand wheel of a containment door is provided, the hand wheel including a hand wheel shaft mounted through a door leaf, the sealing mechanism comprising: the sealing cover is provided with a first through hole for the hand wheel shaft to pass through, and a clamping groove is formed in the first through hole; the sealing ring is arranged in the clamping groove of the sealing cover; the rubber pad is arranged between the sealing cover and the door leaf, and a second through hole for the hand wheel shaft to pass through is formed in the rubber pad; the sealing cover and the rubber pad are fixed on the door leaf through a fastening piece.
Preferably, the sealing ring is an O-ring.
Preferably, the fastener is a bolt.
Preferably, the rubber pad has a shape and size identical to those of the sealing cover.
Preferably, the sealing cover is provided with four first bolt holes, and the rubber gasket is provided with four second bolt holes.
Preferably, the aperture size of the second bolt hole on the rubber gasket is smaller than the aperture size of the first bolt hole on the sealing cover.
Preferably, the aperture size of the second through hole on the rubber gasket is smaller than the aperture size of the first through hole on the sealing cover.
Preferably, the sealing mechanism is mounted on an inner panel of the door leaf.
According to the sealing mechanism for the hand wheel of the protective airtight door, the traditional welding process is optimized into the assembly process, so that the subsequent installation and debugging are facilitated, the deformation and failure of the sealing ring caused by hot processing are avoided, and the effective implementation of sealing measures is ensured; meanwhile, the welding process is changed into the assembly process, so that the defects that a sealing ring cannot be replaced in subsequent maintenance and the service life of the sealing ring does not reach the standard are overcome, and the effective protection of all components of the protective airtight door within the service life is ensured.
Drawings
FIG. 1 is a cross-sectional view of a sealing mechanism at a hand wheel on a prior art containment door;
fig. 2 is a schematic view of the overall structure of a protective airtight door according to the present invention;
FIG. 3 is an enlarged schematic view of region A shown in FIG. 2;
fig. 4 is an exploded schematic view of the sealing mechanism.
Detailed Description
The present invention will be further described with reference to the following specific embodiments. It should be understood that the following examples are illustrative of the present invention only and are not intended to limit the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
According to a preferred embodiment of the present invention, a sealing mechanism for a hand wheel of a protective airtight door is provided, which is installed at the hand wheel 200 on the door leaf 100, as shown in fig. 2 and 3, for sealing the position of the hand wheel.
Specifically, as shown in fig. 4, the sealing mechanism includes: the sealing ring comprises a sealing ring 1, a sealing cover 2, a rubber gasket 3 and a bolt 4. Wherein, sealing washer 1 is O type sealing washer, and sealed lid 2 has sheet structure, has the first through-hole 21 that supplies the hand wheel axle to pass on sealed lid 2, is equipped with draw-in groove 22 in the first through-hole 21, and sealing washer 1 installs in this draw-in groove 22, and cushion 3 sets up between sealed lid 2 and door leaf 100, has the second through-hole 31 that supplies the hand wheel axle to pass on the cushion 3, and sealed lid 2 and cushion 3 pass through bolt 4 to be fixed in on the door leaf 100.
According to the preferred embodiment, the sealing cover 2 and the rubber pad 3 are fixed by means of bolts 4, but it should be understood that other fasteners, such as screws or the like, may be used here.
According to the preferred embodiment, the rubber pad 3 and the sealing cap 2 have the same shape and size, are both square, and have the same size.
According to the preferred embodiment, the sealing cover 2 has four first bolt holes 23, and the rubber pad 3 has four second bolt holes 32, and the diameter of the second bolt holes 32 is slightly smaller than that of the first bolt holes 23. Although the sealing cover 2 and the rubber pad 3 are fixed by four bolts 4 in the present embodiment, it should be understood that the number is not limited to four, and other numbers and arrangements are possible.
According to the preferred embodiment, the diameter of the second through hole 31 of the rubber pad 3 is slightly smaller than the diameter of the first through hole 21 of the sealing cover 2, and the difference between the diameters is preferably greater than or equal to 2 mm.
According to the preferred embodiment, the sealing mechanism is mounted on the inner panel 5 of the door leaf 100, as shown in fig. 3.
The utility model provides a brand-new sealing method changes original welding process into assembly process, when convenient follow-up sealing washer is changed, avoids the overheated injury to the sealing washer of welding, realizes the reliable sealing of handwheel department on the door leaf.
What has been described above is only the preferred embodiment of the present invention, not for limiting the scope of the present invention, but various changes can be made to the above-mentioned embodiment of the present invention. All the simple and equivalent changes and modifications made according to the claims and the content of the specification of the present invention fall within the scope of the claims of the present invention. The present invention is not described in detail in the conventional technical content.
Claims (8)
1. The utility model provides a sealing mechanism for hand wheel of protective airtight door, the hand wheel is including running through the hand wheel axle of installing on the door leaf, its characterized in that, sealing mechanism includes:
the sealing cover is provided with a first through hole for the hand wheel shaft to pass through, and a clamping groove is formed in the first through hole;
the sealing ring is arranged in the clamping groove of the sealing cover; and
the rubber pad is arranged between the sealing cover and the door leaf, and a second through hole for the hand wheel shaft to pass through is formed in the rubber pad;
the sealing cover and the rubber pad are fixed on the door leaf through a fastening piece.
2. The sealing mechanism for a handwheel for a containment door of claim 1, wherein the seal ring is an O-ring seal.
3. The sealing mechanism for a handwheel for a containment door in accordance with claim 1, wherein said fasteners are bolts.
4. The sealing mechanism for a handwheel for a containment door as in claim 1, wherein said rubber gasket is of a consistent shape and size with said sealing cap.
5. The sealing mechanism for a handwheel for a containment door of claim 3, wherein said sealing cap has four first bolt holes and said rubber gasket has four second bolt holes.
6. The sealing mechanism for a handwheel of a containment door as in claim 5, wherein the second bolt hole in the rubber gasket has a smaller aperture size than the first bolt hole in the seal cap.
7. The sealing mechanism for a handwheel for a containment door as in claim 1, wherein the second through hole in the gasket has a smaller diameter than the first through hole in the seal cap.
8. The sealing mechanism for a handwheel for a containment door of claim 1, wherein the sealing mechanism is mounted on an inner panel of the door leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022092376.3U CN213418727U (en) | 2020-09-22 | 2020-09-22 | Sealing mechanism for hand wheel of protective airtight door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022092376.3U CN213418727U (en) | 2020-09-22 | 2020-09-22 | Sealing mechanism for hand wheel of protective airtight door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213418727U true CN213418727U (en) | 2021-06-11 |
Family
ID=76263280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022092376.3U Active CN213418727U (en) | 2020-09-22 | 2020-09-22 | Sealing mechanism for hand wheel of protective airtight door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213418727U (en) |
-
2020
- 2020-09-22 CN CN202022092376.3U patent/CN213418727U/en active Active
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