CN218669084U - Sealing mechanism for civil air defense door - Google Patents
Sealing mechanism for civil air defense door Download PDFInfo
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- CN218669084U CN218669084U CN202222568049.XU CN202222568049U CN218669084U CN 218669084 U CN218669084 U CN 218669084U CN 202222568049 U CN202222568049 U CN 202222568049U CN 218669084 U CN218669084 U CN 218669084U
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- air defense
- defense door
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Abstract
The utility model discloses a sealing mechanism for a civil air defense door, which comprises a pressing strip, a sealing strip and a stop strip; the sealing strips are elastic hollow adhesive tapes, the sections of the sealing strips are of fan-shaped structures, the front end faces of the sealing strips are arc-shaped faces, and the sealing strips are internally divided into three groups of independent cavities through two groups of parallel and axial partition plates; the pressing strip is fixedly installed opposite to the sealing strip, and the front end face of the pressing strip abuts against the lower half portion of the rear end face of the sealing strip; locking strip, including the sealed face of upper and lower two sets of interconnect and slope, when the sealing strip is close to the locking strip, the preceding terminal surface of sealing strip and two sets of sealed faces homoenergetic tangent and contact are sealed, the sealing mechanism for the door was prevented to the owner passes through special construction's sealing strip, and compress tightly strip, locking strip combined action, it is sealed to form the bilayer between the door body and door frame, sealing performance is showing and is promoting, and the sealing strip receives the extrusion force less, difficult emergence ruptured situation, long service life, and convenient reforming transform the current people's air defense door, the practicality is stronger.
Description
Technical Field
The utility model relates to a people's air defense door sealing device technical field specifically is a sealing mechanism for people's air defense door.
Background
The civil air defense door is used for sealing, preventing dust, preventing water and preventing impact at the entrance and the exit of the civil air defense project, and is locked by mainly inserting a bolt into a door frame and a cavity, wherein the sealing is mainly realized by utilizing the contact between the door body and the door frame, the contact position is hard sealing, the actual sealing effect is poor, air leakage, smoke leakage and the like exist, and for the civil air defense door used in part of chemical engineering laboratories, the civil air defense door cannot effectively isolate the leakage of internal toxic gas and has great harm to peripheral personnel, so the sealing performance of the civil air defense door is improved;
present people's air defense door is when increasing sealing performance, it increases the sealing strip to adopt at hard sealed face contact position more, utilize sealing strip elastic deformation to realize the sealed of contact surface, but this elastic deformation relies on the extrusion force between the door body and the door frame, and open and shut the in-process at the door body, there is a certain amount wearing and tearing to the sealing strip, and when the door body was too big with the door frame extrusion force, can have the ruptured condition of sealing strip, sealing performance sharply descends, do not play due sealed effect, and to the people's air defense door that has come into use, when carrying out the sealing strip and installing additional, the degree of difficulty is great, be difficult for installing additional, be difficult to carry out the leakproofness transformation to current people's air defense door promptly.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome current defect, provide a sealing mechanism for civil air defense door, through special construction's sealing strip with compress tightly strip, locking strip combined action, it is sealed to form the bilayer between the door body and door frame, sealing performance is showing and is promoting, and the sealing strip receives the extrusion force less, difficult emergence ruptured situation, long service life, and the convenience is reformed transform current civil air defense door, and the practicality is stronger, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a sealing mechanism for a civil air defense door comprises a pressing strip, a sealing strip and a stop strip;
the sealing strips are elastic hollow adhesive tapes, the sections of the sealing strips are of fan-shaped structures, the front end faces of the sealing strips are arc-shaped faces, and the sealing strips are internally divided into three groups of independent cavities through two groups of parallel and axial partition plates;
the pressing strip is fixedly installed opposite to the sealing strip, and the front end face of the pressing strip abuts against the lower half portion of the rear end face of the sealing strip;
the locking strip comprises an upper group of sealing surfaces and a lower group of sealing surfaces which are connected with each other and inclined, and when the sealing strip is close to the locking strip, the front end surface of the sealing strip and the two groups of sealing surfaces can be tangent and contact to seal.
As a preferred technical scheme of the utility model, the position of the fan handle of the section of the sealing strip is provided with a clamping part;
the clamping part is fixedly clamped between the fixing strip and the pressing strip, and a through hole for fixing the fixing part with the surface of the civil air defense door is formed in the surface of the fixing strip;
through hexagon socket head cap screw, vertical arranging, will fix strip, clamping part and compress tightly the strip and fix in proper order to make the three constitute integratively, be connected the fixed strip with the fixed surface of the door body through the bolt afterwards, thereby make the sealing strip as an organic whole with the door body.
As the utility model discloses a preferred technical scheme, the sealing strip rear end face of clamping part below and the preceding terminal surface contact position of compressing tightly the strip are the inclined plane that inclines, the inclined plane is alpha with vertical face contained angle 4 ，0°<α 4 <The angle is 45 degrees, and the bottom of the front end face of the pressing strip is of a fillet structure;
through the angle design to sealing strip and compressing tightly a contact position, make the sealing strip can take place to bend when the atress, make its preceding terminal surface can closely laminate on the sealed face of locking strip more, and through the design on inclined plane, help increasing clamping part hookup location's thickness, tear with clamping part hookup location when avoiding sealing strip deformation.
As a preferred technical scheme of the utility model, a partition part a and a partition part B are arranged in the sealing strip, the partition part a and the partition part B divide the inside of the sealing strip into three groups of independent cavities from top to bottom, the horizontal height of the clamping part is consistent with that of the cavity on the uppermost layer, and the bottom of the front end surface of the pressing strip is consistent with that of the cavity on the lowermost layer;
through the design to the partition part position, make the application of force point of clamping part correspond upper cavity, compress tightly the application of force point of strip lower extreme point and correspond lower floor's cavity, compress inside gas, make the preceding terminal surface of sealing strip laminate the sealed face of locking strip more, further promotion sealing performance.
As an optimized technical scheme of the utility model, the up end of sealing strip and horizontal plane contained angle alpha 1 The angle between the partition part A and the horizontal plane is alpha 2 The angle between the partition part B and the horizontal plane is alpha 3 ，0°<α 3 <5°<α 2 <20°<α 1 <30°；
Through the angle design to separating portion and up end, make sealing strip 2 when receiving the extrusion, can carry out directional deformation, in order to guarantee that the preceding terminal surface of sealing strip 2 can laminate the sealed face of locking strip 4 more, and the up end of sealing strip 2 and the sealed face of rear end face and the position that corresponds have certain contained angle, when up end and rear end face surface bear great atmospheric pressure, can force corresponding position inside cavity to be compressed, terminal surface and sealed face laminating degree will further promote before corresponding, thereby guarantee the leakproofness, effectively satisfy the leakproofness demand when explosion air wave strikes promptly.
As an optimized technical scheme of the utility model, the lower sealing surface of locking strip is alpha with the horizontal plane contained angle 5 ，20°<α 5 <45 degrees, the included angle between the upper sealing surface of the stop strip and the vertical surface is alpha 6 ，0°<α 6 <5°；
The latter half gradient of sealing strip is greater than the first half, therefore, and when the sealed face design of locking strip, the sealed face angle of lower floor should be greater than the sealed face angle of upper strata to obtain more outstanding sealed effect.
As a preferred technical scheme of the utility model, a plurality of groups of vertical partition plates are arranged inside the sealing strip along the length direction, so as to divide the inside of the sealing strip into a plurality of groups of independent cavities;
the sealing strips are divided into a plurality of groups of independent cavities through the vertical partition plates, and the loss of the sealing capability of the whole sealing strip caused by the damage of local sealing strips is effectively avoided.
Meanwhile, the elastic performance of the sealing strip can be improved by thickening the thickness of the partition plate inside the sealing strip, and even if the sealing strip is locally damaged to cause pressure leakage of an internal cavity, the front end face of the sealing strip can be tightly attached to the sealing surface according to the supporting force of the partition plate, so that the sealing performance of the sealing strip is ensured.
Compared with the prior art, the beneficial effects of the utility model are that: the sealing mechanism for the civil air defense door is provided with a fixing strip and a stop strip, wherein the fixing strip is used for connecting the sealing strip with the civil air defense door, and the stop strip is installed with a door frame, so that the whole installation is simple and convenient, the stop strip and the door frame are all installed on an exposed surface, and the civil air defense door is not required to be disassembled, so that the sealing mechanism is suitable for the transformation of the existing civil air defense door;
meanwhile, the product is arranged on the surface of the civil air defense door instead of the end surface, so that the civil air defense door can not cause friction on the sealing strip when being opened and closed, has no abrasion and has long service life;
when sealing, the preceding terminal surface of sealing strip and the contact position of locking strip form two-layer sealed, effectively promote sealed effect, and through the design of independent cavity in the sealing strip, two-layer sealed effect is not influenced each other, and when the sealing strip both sides were strikeed by the stormy waves, can not cause the sealed decline of contact surface, satisfies the leakproofness under the explosion impact situation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the point A of the present invention;
FIG. 4 is a cross-sectional view of the sealing strip of the present invention;
FIG. 5 is a schematic view of the angle of the partition plate in the sealing strip of the present invention;
fig. 6 is the inside schematic view of the sealing strip of the present invention.
In the figure: 1. a fixing strip; 2. a sealing strip; 201. a clamping portion; 202. a partition part A; 203. a partition part B; 3. compressing the strips; 4. a stop bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a sealing mechanism for a civil air defense door comprises a pressing strip 3, a sealing strip 2 and a stop strip 4;
the sealing strip 2 is an elastic hollow adhesive tape, the section of the sealing strip is of a fan-shaped structure, the front end face of the sealing strip is an arc-shaped face, and the sealing strip is internally divided into three groups of independent cavities through two groups of parallel and axial partition plates;
the pressing strip 3 is fixedly installed opposite to the sealing strip 2, and the front end face of the pressing strip 3 abuts against the lower half portion of the rear end face of the sealing strip 2;
Referring to fig. 2, a clamping portion 201 is provided at the fan handle position of the section of the sealing strip 2;
the fixing device further comprises a fixing strip 1, the clamping part 201 is fixedly clamped between the fixing strip 1 and the pressing strip 3, and a through hole used for being fixed with the surface of the civil air defense door is formed in the surface of the fixing strip 1;
through hexagon socket head cap screw, vertical arranging, it is fixed in proper order with fixed strip 1, clamping part 201 and compressing tightly strip 3 to make the three constitute integratively, through the fixed surface connection of bolt with fixed strip 1 with the door body afterwards, thereby make sealing strip 2 and door body as an organic whole.
Referring to fig. 5, the contact position of the rear end face of the sealing strip 2 below the clamping portion 201 and the front end face of the pressing strip 3 is an inclined plane, and the included angle between the inclined plane and the vertical plane is α 4 ，0°<α 4 <45 degrees, and the bottom of the front end surface of the pressing strip 3 is of a fillet structure;
through the angle design to sealing strip 2 and 3 contact position of compressing tightly, make sealing strip 2 can take place to bend when the atress, make its preceding terminal surface can closely laminate more on the sealed face of locking strip 4, and through the design on inclined plane, help increasing the thickness of clamping part 201 hookup location, tear with clamping part 201 hookup location when avoiding sealing strip 2 deformation.
Referring to fig. 4, a partition portion a 202 and a partition portion B203 are arranged in the sealing strip 2, the partition portion a 202 and the partition portion B203 divide the interior of the sealing strip 2 into three groups of independent cavities from top to bottom, the horizontal height of the clamping portion 201 is consistent with that of the cavity on the uppermost layer, and the bottom of the front end face of the pressing strip 3 is consistent with that of the cavity on the lowermost layer;
through the design to the partition part position, make the application of force point of clamping part 201 correspond upper cavity, compress tightly the application of force point of strip 3 lower extreme point and correspond lower floor's cavity, compress inside gas, make the preceding terminal surface of sealing strip 2 laminate the sealed face of locking strip 4 more, further promotion sealing performance.
Referring to fig. 4, the angle α between the upper end surface of the weather strip 2 and the horizontal plane is shown 1 The angle alpha between the partition part A202 and the horizontal plane 2 The angle alpha between the partition B203 and the horizontal plane 3 ，0°<α 3 <5°<α 2 <20°<α 1 <30°；
Through the angle design to separating portion and up end, make sealing strip 2 when receiving the extrusion, can carry out directional deformation, in order to guarantee that the preceding terminal surface of sealing strip 2 can laminate the sealed face of locking strip 4 more, and the up end of sealing strip 2 and the sealed face of rear end face and the position that corresponds have certain contained angle, when up end and rear end face surface bear great atmospheric pressure, can force corresponding position inside cavity to be compressed, terminal surface and sealed face laminating degree will further promote before corresponding, thereby guarantee the leakproofness, effectively satisfy the leakproofness demand when explosion air wave strikes promptly.
Referring to fig. 3, the angle between the lower sealing surface of the stopper strip 4 and the horizontal plane is α 5 ，20°<α 5 <45 degrees, the included angle between the upper sealing surface of the stop strip 4 and the vertical surface is alpha 6 ，0°<α 6 <5°；
The lower half inclination of sealing strip 2 is greater than the upper half, therefore, when the sealed face of locking strip 4 was designed, the sealed face angle of lower floor should be greater than the sealed face angle of upper strata to obtain more outstanding sealed effect.
Referring to fig. 6, a plurality of groups of vertical partition plates are arranged inside the sealing strip 2 along the length direction to divide the inside of the sealing strip 2 into a plurality of groups of independent cavities;
divide into a plurality of independent cavitys of group with sealing strip 2 through vertical baffle, effectively avoid the damaged whole sealing strip 2 that causes of local sealing strip 2 to seal the ability and lose.
Meanwhile, the elastic performance of the sealing strip can be improved by thickening the thickness of the partition plate inside the sealing strip 2, and even if the sealing strip 2 is locally damaged to cause pressure leakage of an internal cavity, the front end face of the sealing strip 2 can be tightly attached to the sealing face according to the supporting force of the partition plate, so that the sealing performance of the sealing strip is ensured.
At the time of design, take alpha 1 =25°，α 2 =10°，α 3 =2°，α 4 =20°，α 5 =30°，α 6 =3 °; during installation, the stop strip 4 is fixed on the inner ring surface of the door frame through the hexagon socket head cap screw, the fixing strip 1 is fixed on the surface of the door body of the civil air defense door, when the protective door is closed, the sealing strip 2 is slightly extruded, the front end surface 2a is respectively attached and contacted with the sealing surfaces 4a and 4b of the stop strip 4, when the door body is impacted, the pressing strip 3 moves forwards, the door plate presses the rear end surface 3b of the pressing strip 3, the front end surface 3a of the pressing strip 3 is transmitted to the rear end surface 2c of the sealing strip, and the sealing strip 3 is forced to continuously deform so as to improve the sealing performance;
when one of the two sides of the protective door is impacted by air waves, the two end surfaces 2d or 2b of the sealing strip 2 are exposed to bear the air pressure of the two sides and press the inner cavities at the corresponding positions, so that the joint area of the front end surface 2a and the sealing surface 4a or 4b is increased, and the sealing performance is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a sealing mechanism for people's air defense door, includes compressing tightly strip (3), sealing strip (2) and locking strip (4), its characterized in that:
the sealing strips (2) are elastic hollow adhesive strips, the sections of the sealing strips are of fan-shaped structures, the front end faces of the sealing strips are arc-shaped faces, and the sealing strips are internally divided into three groups of independent cavities through two groups of parallel and axial partition plates;
the pressing strip (3) is fixedly installed opposite to the sealing strip (2), and the front end face of the pressing strip (3) abuts against the lower half portion of the rear end face of the sealing strip (2);
stop strip (4), including upper and lower two sets of interconnect and the sealed face of slope, when sealing strip (2) were close to stop strip (4), the preceding terminal surface of sealing strip (2) all can be tangent and contact sealedly with two sets of sealed faces.
2. The seal mechanism for a civil air defense door according to claim 1, wherein: a clamping part (201) is arranged at the fan handle position of the section of the sealing strip (2);
still include fixed strip (1), clamping part (201) fixed centre gripping is between fixed strip (1) and compress tightly strip (3), and fixed strip (1) surface is provided with and is used for with the fixed through-hole in people's air defense door surface.
3. The seal mechanism for a civil air defense door according to claim 2, wherein: the contact position of the rear end face of the sealing strip (2) below the clamping part (201) and the front end face of the pressing strip (3) is an inclined plane, and the included angle between the inclined plane and the vertical plane is alpha 4 ，0°<α 4 <45 degrees, and the bottom of the front end surface of the pressing strip (3) is of a fillet structure.
4. The seal mechanism for a civil air defense door according to claim 3, wherein: set up partition A (202) and partition B (203) in sealing strip (2), partition A (202) and partition B (203) are inside from last to separating for three independent cavitys of group with sealing strip (2), clamping part (201) level is unanimous with the superiors' cavity, the preceding terminal surface bottom and the lower floor height that compress tightly strip (3) are unanimous.
5. The seal mechanism for a civil air defense door according to claim 4, wherein: the upper end surface of the sealing strip (2) forms an included angle alpha with the horizontal plane 1 The angle between the partition part A (202) and the horizontal plane is alpha 2 The angle alpha between the partition B (203) and the horizontal plane 3 ，0°<α 3 <5°<α 2 <20°<α 1 <30°。
6. The seal mechanism for a civil air defense door according to claim 1, wherein: the included angle between the lower sealing surface of the stop strip (4) and the horizontal plane is alpha 5 ，20°<α 5 <45 degrees, and the included angle between the upper sealing surface of the stop strip (4) and the vertical surface is alpha 6 ，0°<α 6 <5°。
7. The seal mechanism for a civil air defense door according to claim 1, wherein: a plurality of groups of vertical partition plates are arranged in the sealing strip (2) along the length direction, and the inside of the sealing strip (2) is divided into a plurality of groups of independent cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222568049.XU CN218669084U (en) | 2022-09-27 | 2022-09-27 | Sealing mechanism for civil air defense door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222568049.XU CN218669084U (en) | 2022-09-27 | 2022-09-27 | Sealing mechanism for civil air defense door |
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| Publication Number | Publication Date |
|---|---|
| CN218669084U true CN218669084U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222568049.XU Active CN218669084U (en) | 2022-09-27 | 2022-09-27 | Sealing mechanism for civil air defense door |
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| CN (1) | CN218669084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115979540A (en) * | 2023-03-22 | 2023-04-18 | 江苏上田民防设备有限公司 | Air tightness testing device for civil air defense door |
-
2022
- 2022-09-27 CN CN202222568049.XU patent/CN218669084U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115979540A (en) * | 2023-03-22 | 2023-04-18 | 江苏上田民防设备有限公司 | Air tightness testing device for civil air defense door |
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