Closed structures and civil air defense buildings

Abstract

The present invention provides a closed structure and a civil air defense engineering building, and relates to the field of building construction technology. The closed structure includes a first sealing ring, an annular plate, and a plurality of connecting rods. The first sealing ring is used to be sleeved on the pipeline in the concrete structure and fit on one side of the concrete structure, and the annular plate is used to be sleeved on the pipeline and fit on one side of the first sealing ring. Along the circumference of the annular plate, a plurality of perforations are provided on the annular plate, and one end of a plurality of connecting rods is used to pass through the perforations on the plurality of annular plates one by one and then be fixed in the concrete structure, and the plurality of connecting rods are all connected to the annular plate. The present invention alleviates the technical problem that in order to meet the air tightness requirements between the concrete structure and the pipeline without the embedded sleeve in the prior art, it is necessary to drill a hole in the concrete structure, and pour fine stone concrete between the embedded sleeve and the hole, which leads to a long construction time and it is difficult to ensure the construction quality of the fine stone concrete part.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a closed structure and a civil air defense engineering building. Background Art

[0002] Civil air defense projects, also known as civil air defense works, refer to underground protective buildings built separately to ensure the shelter of personnel and materials, civil air defense command, and medical rescue during wartime. In order to ensure the tightness between the protective closed walls, closed walls, top plates and other concrete structures in civil air defense projects and the pipelines passing through them (such as water pipes, heating pipes, sewage pipes, electricity pipes, air ducts, etc.), when the template construction is carried out on the above concrete structures, such as Figure 1 As shown, it is necessary to install the embedded sleeve 1 with sealing ribs 10 on the pipe body and baffles 11 welded at both ends between the templates on both sides of the concrete structure 2 in advance. Then the pipeline 3 passes through the baffle 11 and the embedded sleeve 1, and the pipeline 3 and the baffle 11 are welded together. Finally, concrete is poured in the template, and after the concrete is solidified and formed, the embedded sleeve 1 and the baffle 11 can ensure the airtightness between the pipeline 3 and the concrete structure 2.

[0003] When performing formwork construction on concrete structures such as protective enclosed walls, enclosed walls and top plates, the construction team often directly passes the pipeline through the formwork and pours concrete due to reasons such as not reading the drawings carefully or not strictly performing the construction. Figure 2 As shown, at this time, there is no embedded sleeve 1 between the pipeline 3 and the concrete structure 2, and the pipeline 3 and the concrete structure 2 are not sealed, which will cause the problem of substandard air tightness of the project. In order to meet the air tightness requirements between the concrete structure 2 and the pipeline 3, remedial measures are often required after the concrete is solidified. An existing remedial measure is as follows: first cut off the junction between the pipeline 3 and the concrete structure 2, and then drill a hole at the position where the pipeline 3 is buried on the concrete structure 2. Then insert the embedded sleeve 1 into the hole, and pour fine stone concrete between the outer wall of the embedded sleeve 1 and the inner wall at the hole. After the fine stone concrete is solidified, the embedded sleeve 1 can be fixed at the hole. Finally, the pipeline 3 is passed through the embedded sleeve 1 and the baffle 11 is welded to the pipeline 3.

[0004] However, the process of drilling a hole in a formed concrete structure is difficult and takes a long time to construct. In addition, after pouring fine stone concrete between the outer wall of the embedded sleeve and the inner wall of the hole, it takes a long time to maintain, and the construction quality of the part where fine stone concrete is poured between the concrete structure and the embedded sleeve is difficult to guarantee. Summary of the invention

[0005] The purpose of the present invention is to provide a closed structure and a civil air defense engineering building to alleviate the problem in the prior art that in order to meet the air tightness requirements between a concrete structure and a pipeline that is not provided with a pre-buried sleeve, a hole needs to be drilled on the formed concrete structure, the pre-buried sleeve is inserted into the hole, and fine stone concrete is poured between the outer peripheral wall of the pre-buried sleeve and the inner wall at the hole. However, the process of drilling the hole is difficult and requires a long construction time. In addition, after pouring the fine stone concrete between the outer peripheral wall of the pre-buried sleeve and the inner wall at the hole, it takes a long curing time, and the construction quality of the part where the fine stone concrete is poured between the concrete structure and the pre-buried sleeve is difficult to guarantee.

[0006] The sealed structure provided by the present invention comprises a first sealing ring, an annular plate and a plurality of connecting rods;

[0007] The first sealing ring is used to be sleeved on the pipeline in the concrete structure and fit on one side of the concrete structure, and the annular plate is used to be sleeved on the pipeline in the concrete structure and fit on the side of the first sealing ring away from the concrete structure;

[0008] A plurality of through holes are arranged on the annular plate along the circumference thereof, and one end of the plurality of connecting rods is used to pass through the through holes on the plurality of annular plates one by one and then be fixed in the concrete structure, and the plurality of connecting rods are all connected to the annular plate to fix the first sealing ring between the annular plate and the concrete structure.

[0009] Furthermore, one end of the plurality of connecting rods away from the concrete structure is located on a side of the annular plate away from the first sealing ring, and the rod body of the connecting rod is fixedly connected to the annular plate.

[0010] Furthermore, the closed structure also includes a resistance plate, and the resistance plate is provided with a sleeve hole, and the sleeve hole can be sleeved on the pipeline in the concrete structure;

[0011] A plurality of through holes are arranged on the resistance plate along the circumference of the sleeve hole. The plurality of through holes on the resistance plate are sleeved on a plurality of connecting rods one by one. The resistance plate is installed on the connecting rods and is located on the side of the annular plate away from the first sealing ring.

[0012] Furthermore, the inner wall of the sleeve hole fits with the outer wall of the pipeline in the concrete structure.

[0013] Furthermore, the sealed structure also includes a second sealing ring, which is abutted between the resistance plate and the annular plate.

[0014] Furthermore, there are two second sealing rings, and one of the two second sealing rings is located on a side of the plurality of connecting rods close to the pipeline in the concrete structure;

[0015] Another second sealing ring is located on the side of the plurality of connecting rods facing away from the pipeline in the concrete structure.

[0016] Furthermore, the thickness of the second sealing ring is greater than the thickness of the first sealing ring.

[0017] Furthermore, the connecting rod is an expansion bolt.

[0018] Furthermore, there are two first sealing rings, and one of the two first sealing rings is located on a side of the plurality of connecting rods close to the pipeline in the concrete structure;

[0019] Another first sealing ring is located on a side of the plurality of connecting rods facing away from the pipeline in the concrete structure.

[0020] The civil air defense engineering building provided by the present invention comprises a concrete structure, pipelines and a closed structure described in any one of the above technical solutions, and the closed structure is installed between the concrete structure and the pipelines.

[0021] The enclosed structure and civil air defense engineering building provided by the present invention can produce the following beneficial effects:

[0022] The enclosed structure provided by the present invention includes a first sealing ring, an annular plate and a plurality of connecting rods. In the case where there is no embedded sleeve between the pipeline and the concrete structure, and the pipeline and the concrete structure are not sealed, in order to meet the airtightness requirements between the concrete structure and the pipeline without the embedded sleeve, the first sealing ring in the present invention can be sleeved on the pipeline in the concrete structure and fit on one side of the concrete structure, and then the annular plate can be sleeved on the pipeline in the concrete structure and fit on the side of the first sealing ring away from the concrete structure. Then, one end of the plurality of connecting rods is passed through the perforations on the plurality of annular plates one by one and fixed in the concrete structure, and the plurality of connecting rods are connected to the annular plates. After the plurality of connecting rods are connected to the annular plates, the first sealing ring can be fixed between the annular plates and the concrete structure. At this time, the sealing ring located between the annular plate and the concrete structure can seal the gap at the connection between the annular plate and the concrete structure, thereby meeting the airtightness requirements between the concrete structure and the pipeline.

[0023] Compared with the prior art, the enclosed structure provided by the present invention can meet the airtightness requirements between the concrete structure and the pipeline by using the first sealing ring. By using the connection relationship between the connecting rod and the annular plate and the connection relationship between the connecting rod and the concrete structure, the first sealing ring can be fixed between the concrete structure and the pipeline. Therefore, the enclosed structure provided by the present invention does not need to cut off the pipeline, nor does it need to drill a hole at the location where the pipeline is buried in the concrete structure, which can not only save construction time, but also reduce noise during construction and reduce pollution to the surrounding environment. In addition, the enclosed structure provided by the present invention does not need to cast fine stone concrete between the outer peripheral wall of the embedded sleeve at the hole and the inner wall at the hole. Therefore, the enclosed structure provided by the present invention does not need to spend a long time to maintain the fine stone concrete, and will not cause the problem of difficult to ensure the construction quality between the pipeline and the concrete structure.

[0024] The civil air defense engineering building provided by the present invention comprises a concrete structure, pipelines and the above-mentioned enclosed structure, and the enclosed structure is installed between the concrete structure and the pipeline. The civil air defense engineering building provided by the present invention comprises the above-mentioned enclosed structure, so the civil air defense engineering building provided by the present invention has the same beneficial effects as the above-mentioned enclosed structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the embedded casing, concrete structure and pipeline in the prior art;

[0027] Figure 2 It is a structural schematic diagram of a concrete structure and a pipeline in the prior art;

[0028] Figure 3 A schematic diagram of the structure of the enclosed structure provided in the first embodiment of the present invention;

[0029] Figure 4 for Figure 3 A side view of the closed structure in FIG.

[0030] Figure 5 A schematic diagram of the structure of the enclosed structure provided in the first embodiment of the present invention;

[0031] Figure 6 for Figure 5 A side view of the closed structure in FIG.

[0032] Figure 7 A schematic diagram of the structure of the enclosed structure provided in the second embodiment of the present invention;

[0033] Figure 8 for Figure 7 A side view of the closed structure in FIG.

[0034] Fig. 9 A schematic diagram of another closed structure provided in the second embodiment of the present invention;

[0035] Fig.10 A structural schematic diagram of another closed structure provided in Embodiment 2 of the present invention;

[0036] Fig.11 for Fig.10 A side view of the closed structure in FIG.

[0037] Fig.12 A schematic structural diagram of another closed structure provided in Embodiment 3 of the present invention;

[0038] Fig.13 for Fig.12 Side view of the closed structure in.

[0039] Icons: 1-embedded casing; 10-sealed rib; 11-baffle; 2-concrete structure; 3-pipeline; 4-first sealing ring; 5-annular plate; 6-connecting rod; 60-nut; 61-rubber gasket; 62-metal gasket; 7-resistance plate; 8-second sealing ring. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Embodiment 1:

[0042] like Figure 3-Figure 4 As shown, the sealed structure provided in this embodiment includes a first sealing ring 4, an annular plate 5 and a plurality of connecting rods 6. The first sealing ring 4 is used to be sleeved on the pipeline 3 in the concrete structure 2 and fit on one side of the concrete structure 2, and the annular plate 5 is used to be sleeved on the pipeline 3 in the concrete structure 2 and fit on the side of the first sealing ring 4 away from the concrete structure 2. Along the circumference of the annular plate 5, a plurality of through holes are provided on the annular plate 5, one end of the plurality of connecting rods 6 is used to pass through the through holes on the plurality of annular plates 5 one by one and then be fixed in the concrete structure 2, and the plurality of connecting rods 6 are all connected to the annular plate 5 to fix the first sealing ring 4 between the annular plate 5 and the concrete structure 2.

[0043] In the case where there is no embedded sleeve between the pipeline 3 and the concrete structure 2, and the pipeline 3 and the concrete structure 2 are not sealed, in order to meet the airtightness requirements between the concrete structure 2 and the pipeline 3 without the embedded sleeve, the first sealing ring 4 in this embodiment can be sleeved on the pipeline 3 in the concrete structure 2 and attached to one side of the concrete structure 2, and then the annular plate 5 can be sleeved on the pipeline 3 in the concrete structure 2 and attached to the side of the first sealing ring 4 away from the concrete structure 2. Then, one end of the multiple connecting rods 6 is passed through the perforations on the multiple annular plates 5 one by one and fixed in the concrete structure 2, and the multiple connecting rods 6 are all connected to the annular plates 5. After the multiple connecting rods 6 are all connected to the annular plates 5, the first sealing ring 4 can be fixed between the annular plates 5 and the concrete structure 2. At this time, the sealing ring located between the annular plate 5 and the concrete structure 2 can seal the gap at the connection between the annular plate 5 and the concrete structure 2, thereby meeting the airtightness requirements between the concrete structure 2 and the pipeline 3, and preventing poisonous gas and other gases from entering the interior of the civil defense project building in wartime.

[0044] Compared with the prior art, the enclosed structure provided in this embodiment can meet the airtightness requirements between the concrete structure 2 and the pipeline 3 by using the first sealing ring 4. By using the connection relationship between the connecting rod 6 and the annular plate 5 and the connection relationship between the connecting rod 6 and the concrete structure 2, the first sealing ring 4 can be fixed between the concrete structure 2 and the pipeline 3. Therefore, the enclosed structure provided in this embodiment does not need to cut off the pipeline 3, nor does it need to drill a hole at the location where the pipeline 3 is buried on the concrete structure 2, which can not only save construction time, but also reduce noise during construction and reduce pollution to the surrounding environment. In addition, the enclosed structure provided in this embodiment does not need to cast fine stone concrete between the outer peripheral wall of the embedded sleeve at the hole and the inner wall at the hole. Therefore, the enclosed structure provided in this embodiment does not need to spend a long time to maintain the fine stone concrete, and will not cause the problem of difficult to ensure the construction quality between the pipeline 3 and the concrete structure 2.

[0045] The closed structure provided in this embodiment alleviates the technical problems existing in the prior art that, in order to meet the air tightness requirement between the concrete structure 2 and the pipeline 3 which are not provided with the embedded sleeve, it is necessary to drill a hole in the formed concrete structure 2, insert the embedded sleeve into the hole, and pour fine stone concrete between the outer wall of the embedded sleeve and the inner wall of the hole. However, the process of drilling the hole is difficult and requires a long construction time. In addition, after pouring the fine stone concrete between the outer wall of the embedded sleeve and the inner wall of the hole, it takes a long curing time, and the construction quality of the part where the fine stone concrete is poured between the concrete structure 2 and the embedded sleeve is difficult to guarantee.

[0046] The first sealing ring 4 may be a rubber ring. In practical applications, in order to achieve a good sealing effect of the first sealing ring 4, before the first sealing ring 4 is attached to one side of the concrete structure 2, the position where the sealing ring is to be attached on the concrete structure 2 may be polished.

[0047] like Figure 3 As shown, one end of the plurality of connecting rods 6 away from the concrete structure 2 is located on the side of the annular plate 5 away from the first sealing ring 4 , and the rod body of the connecting rod 6 is fixedly connected to the annular plate 5 .

[0048] When one end of the multiple connecting rods 6 away from the concrete structure 2 is located on the side of the annular plate 5 away from the first sealing ring 4, the length of the connecting rods 6 is long enough to not only be stably connected in the concrete structure 2, but also stably support the annular plate 5 and the first sealing ring 4.

[0049] The rod body of the connecting rod 6 is fixedly connected to the annular plate 5 , so that the annular plate 5 can be stably mounted on the connecting rod 6 , and the annular plate 5 can be stably abutted against the side wall of the concrete structure 2 .

[0050] Since expansion bolts are low in cost and easy to obtain, and have strong connection capabilities, in this embodiment, the connecting rod 6 is preferably an expansion bolt.

[0051] The expansion bolt includes a screw and a nut 60, such as Figure 3 As shown, the screw is used to connect with the concrete structure 2, and the annular plate 5 is sleeved on the screw. The nut 60 is threadedly connected to the screw and is located on the side of the annular plate 5 away from the first sealing ring 4. The nut 60 is used to cooperate with the screw to keep the abutting relationship between the annular plate 5, the first sealing ring 4 and the concrete structure 2 fixed, so that the first sealing ring 4 can stably play a sealing role.

[0052] Furthermore, a rubber gasket 61 may be provided between the nut 60 and the annular plate 5. The rubber gasket 61 may increase the friction between the nut 60 and the annular plate 5, so that the nut 60 can stably abut against the side of the annular plate 5 away from the first sealing ring 4. The rubber gasket 61 may also play a sealing role, further improving the sealing effect of the sealed structure. In addition, the rubber gasket 61 may also play a buffering role, thereby protecting the nut 60 and the annular plate 5.

[0053] Furthermore, a metal gasket 62 may be provided between the rubber gasket 61 and the nut 60. The outer diameter of the metal gasket 62 and the outer diameter of the rubber gasket 61 are both larger than the outer diameter of the nut 60. At this time, the metal gasket 62 and the rubber gasket 61 can increase the contact area between the nut 60 and the annular plate 5, thereby protecting the nut 60.

[0054] In practical applications, the materials of the annular plate 5 and the connecting rod 6 can both be metal or alloy, and the annular plate 5 and the connecting rod 6 can be connected together by welding.

[0055] In this embodiment, there are two first sealing rings 4, one of which is located on a side of the plurality of connecting rods 6 close to the pipeline 3 in the concrete structure 2. The other first sealing ring 4 is located on a side of the plurality of connecting rods 6 away from the pipeline 3 in the concrete structure 2.

[0056] The two first sealing rings 4 are respectively located on both sides of the plurality of connecting rods 6 , which can not only achieve a better sealing effect, but also ensure the stability of the annular plate 5 .

[0057] In practical applications, the first sealing ring 4 can be fixed between the annular plate 5 and the concrete structure 2 by relying on the abutting relationship between the annular plate 5 and the concrete structure 2, but the installation position of the first sealing ring 4 is not stable at this time. Therefore, in this embodiment, it is preferred that the first sealing ring 4 is fixed to the annular plate 5 by bonding.

[0058] In addition, the first sealing ring 4 provided with multiple perforations is sleeved on multiple connecting rods 6, which can also play a role in balancing the annular plate 5, so that the abutment relationship between the annular plate 5 and the first sealing ring 4 is more stable, thereby further improving the sealing effect.

[0059] like Figure 3 As shown, the inner diameter of the annular plate 5 in this embodiment is larger than the outer diameter of the pipeline 3, and the material of the annular plate 5 is common steel, and the annular plate 5 does not have a high impact resistance. Since civil air defense buildings in non-wartime will not be subject to a large impact, the annular plate 5 and the closed structure in this embodiment are only applicable to civil air defense projects in non-wartime.

[0060] In practical applications, there can be multiple pipelines 3 in the concrete structure 2. In the case where multiple pipelines 3 are buried in the concrete structure 2, the inner diameter of the first sealing ring 4 in this embodiment should be large enough to facilitate simultaneous sleeve connection on multiple pipelines 3 and abutting against the side wall of the concrete structure 2. Correspondingly, the inner diameter of the annular plate 5 should also be large enough to facilitate simultaneous sleeve connection on multiple pipelines 3 and abutting against the side of the first sealing ring 4 facing away from the concrete structure 2.

[0061] There is no limitation on the shape of the annular plate 5 and the shape of the first sealing ring 4, and the shape of the annular plate 5 and the shape of the first sealing ring 4 can be determined based on the shape of the pipeline 3 in the concrete structure 2. The pipeline 3 passing through the concrete structure 2 can be a water pipe, a heating pipe, a sewage pipe, an electric pipe or a ventilation pipe, etc. The concrete structure 2 can be the roof of a building in a civil air defense project, a closed wall or a protective closed wall, etc.

[0062] When the concrete structure 2 is a top plate and the shape of the pipeline 3 in the concrete structure 2 is cylindrical, such as Figure 4 As shown, at this time, the annular plate 5 and the first sealing ring 4 are both in annular shape.

[0063] When the concrete structure 2 is a closed wall and the radial cross section of the pipeline 3 in the concrete structure 2 is a rectangle, Figure 5 and Figure 6 As shown, the first sealing ring 4 and the annular plate 5 are both rectangular.

[0064] When the concrete structure 2 is a protective closed wall, since airtightness needs to be ensured at the intersections with the pipeline 3 on both sides of the wall of the protective closed wall, the closed structure provided in this embodiment needs to be installed on both sides of the wall of the protective closed wall.

[0065] In summary, when the sealing structure provided by this embodiment is used to remediate the sealing between the concrete structure 2 and the pipeline 3 where the pre-buried casing is missing, the easily available expansion bolts can be used as the connecting rods 6, the rubber rings can be used as the first sealing rings 4, and the steel plates at the construction site can be used to make the annular plate 5. When the sealing structure provided by this embodiment is installed on the concrete structure 2, it is only necessary to assemble the expansion bolts, the first sealing ring 4 and the annular plate 5 together, and then install the expansion bolts in the concrete structure 2.

[0066] It can be seen that the enclosed structure provided in this embodiment can not only meet the sealing requirements between the concrete structure 2 and the pipeline 3 therein, but the workload during the installation of the enclosed structure provided in this embodiment is also smaller than the workload of the remedial measures in the prior art, and the impact on the environment during the construction process is also smaller.

[0067] Embodiment 2:

[0068] like Figure 7-Figure 13 As shown, the sealed structure provided in this embodiment also includes a first sealing ring 4, an annular plate 5 and a plurality of connecting rods 6 as the sealed structure provided in the first embodiment. The first sealing ring 4 is used to be sleeved on the pipeline 3 in the concrete structure 2 and fit on one side of the concrete structure 2, and the annular plate 5 is used to be sleeved on the pipeline 3 in the concrete structure 2 and fit on the side of the first sealing ring 4 away from the concrete structure 2. Along the circumference of the annular plate 5, a plurality of through holes are provided on the annular plate 5, and one end of the plurality of connecting rods 6 is used to pass through the through holes on the plurality of annular plates 5 one by one and then be fixed in the concrete structure 2. The plurality of connecting rods 6 are all connected to the annular plate 5 to fix the first sealing ring 4 between the annular plate 5 and the concrete structure 2.

[0069] The sealed structure provided in this embodiment can also utilize a sealing ring to meet the airtightness requirements between the concrete structure 2 and the pipeline 3 as the sealed structure provided in the first embodiment. The sealing ring is fixed between the concrete structure 2 and the pipeline 3 by utilizing the connection relationship between the connecting rod 6 and the annular plate 5 and the connection relationship between the connecting rod 6 and the concrete structure 2.

[0070] Different from the first embodiment, the closed structure provided in this embodiment further includes a resistance plate 7, such as Figure 7 and Figure 8 As shown, the resistance plate 7 is provided with a sleeve hole, which can be sleeved on the pipeline 3 in the concrete structure 2. Along the circumference of the sleeve hole, the resistance plate 7 is provided with a plurality of perforations, and the plurality of perforations on the resistance plate 7 are sleeved on a plurality of connecting rods 6 in a one-to-one correspondence. The resistance plate 7 is installed on the connecting rod 6 and is located on the side of the annular plate 5 away from the first sealing ring 4.

[0071] The material strength of the force-resistance plate 7 should be high enough to meet the impact resistance requirement. The force-resistance plate 7 is used in wartime to improve the impact resistance of the concrete structure 2 equipped with the closed structure provided by this embodiment.

[0072] The material of the force-resistance plate 7 may also be steel. In order to save costs, the strength of the steel used in the annular plate 5 may be smaller than the strength of the steel used in the force-resistance plate 7 .

[0073] In this embodiment, if Figure 7 As shown, the connecting rod 6 is also an expansion bolt, and the resistance plate 7 can also be fixed on the screw rod by a nut 60 threadedly connected to the screw rod in the expansion bolt.

[0074] It can be seen that the resistance plate 7 in this embodiment is detachably connected to the multiple connecting rods 6. When in a non-wartime state, the resistance plate 7 can be removed from the multiple connecting rods 6. When in a wartime state, the resistance plate 7 can be fixed to the multiple connecting rods 6. The resistance plate 7 is detachably connected to the multiple connecting rods 6 to improve the stability of the closed structure provided by this embodiment.

[0075] Further, such as Figure 7 and Figure 8 As shown, the inner wall of the sleeve hole fits with the outer wall of the pipeline 3 in the concrete structure 2.

[0076] When the inner wall of the sleeve hole fits with the outer wall of the pipeline 3 in the concrete structure 2, the resistance plate 7 can further improve the airtightness of the closed structure.

[0077] like Figure 7 As shown, the sealed structure provided in this embodiment further includes a second sealing ring 8 , which abuts between the resistance plate 7 and the annular plate 5 .

[0078] The second sealing ring 8 may also be a rubber ring, and the shape of the second sealing ring 8 may be the same as that of the first sealing ring 4. The second sealing ring 8 may further improve the airtightness of the closed structure, and may play a buffering role, further improving the impact resistance of the concrete structure 2 equipped with the closed structure provided by this embodiment.

[0079] like Figure 7 As shown, there are two second sealing rings 8, one of which is located on the side of the plurality of connecting rods 6 close to the pipeline 3 in the concrete structure 2. The other second sealing ring 8 is located on the side of the plurality of connecting rods 6 away from the pipeline 3 in the concrete structure 2.

[0080] The two second sealing rings 8 are respectively located on both sides of the plurality of connecting rods 6 , which can not only achieve a better sealing effect, but also ensure the stability of the resistance plate 7 .

[0081] In order to improve the stability of the installation position of the second sealing ring 8, in this embodiment, the second sealing ring 8 is preferably fixed to the resistance plate 7 by bonding.

[0082] Furthermore, the thickness of the second sealing ring 8 is greater than the thickness of the first sealing ring 4 .

[0083] Since the resistance plate 7 is used in wartime, in order to improve the impact resistance and air tightness of the connection between the concrete structure 2 and the pipeline 3, the thickness of the second sealing ring 8 used in conjunction with the resistance plate 7 needs to be thicker. In this embodiment, the thickness of the second sealing ring 8 is preferably greater than the thickness of the first sealing ring 4.

[0084] When the concrete structure 2 is the top plate, Fig. 9 As shown, the connection between the top plate and the wall or the top plate and the beam usually has a corner. Since the space at the corner is small, in order to install the closed structure at the above corner, the first sealing ring 4, the annular plate 5, the second sealing ring 8 and the resistance plate 7 of the sealing member can all have a bend corresponding to the corner, so that the closed structure can be stably installed at the corner and can effectively play a sealing role. At this time, one part of the connecting rod 6 is fixed on the top plate, and the other part of the connecting rod 6 is fixed on the wall connected to the top plate or on the beam connected to the top plate.

[0085] like Figure 10-11As shown, when there are multiple pipelines 3 in the concrete structure 2, a through hole can be preset on the concrete structure 2, and multiple pipelines 3 pass through the through hole at the same time. At this time, the inner diameter of the first sealing ring 4 should be large enough to be simultaneously sleeved on multiple pipelines 3 and abut against the side wall of the concrete structure 2. Correspondingly, the inner diameter of the annular plate 5 should also be large enough to be simultaneously sleeved on multiple pipelines 3 and abut against the first sealing ring 4. At this time, the number of sleeve holes on the resistance plate 7 is equal to the number of pipelines 3 in the concrete structure 2, and each sleeve hole passes through a pipeline 3.

[0086] In practical applications, when the concrete structure 2 is a protective closed wall, Figure 12-13 As shown, the sealing structure provided in this embodiment needs to be installed on both sides of the wall of the protective closed wall to ensure the airtightness at the intersection of the two sides of the wall of the protective closed wall and the pipeline 3.

[0087] Furthermore, when in a wartime state, such as Fig.12 As shown, the pipeline 3 for the air duct on the wall of the protective closed wall can be blocked, and then the resistance plate 7 without the socket hole can be installed on the connecting rod 6.

[0088] Embodiment three:

[0089] The civil air defense engineering building provided in this embodiment includes a concrete structure, pipelines, and the enclosed structure in Embodiment 1 or the enclosed structure in Embodiment 2. The enclosed structure in Embodiment 1 or the enclosed structure in Embodiment 2 is installed between the concrete structure and the pipelines.

[0090] The civil air defense building provided in this embodiment includes the enclosed structure in Embodiment 1 or the enclosed structure in Embodiment 2. Therefore, the civil air defense building provided in this embodiment and the enclosed structure in Embodiment 1 or the enclosed structure in Embodiment 2 can solve the same technical problems and achieve the same technical effects.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A closed structure, characterized in that: The sealed structure comprises a first sealing ring (4), an annular plate (5) and a plurality of connecting rods (6); The first sealing ring (4) is used to be sleeved on the pipeline (3) in the concrete structure (2) and to be attached to one side of the concrete structure (2); the annular plate (5) is used to be sleeved on the pipeline (3) in the concrete structure (2) and to be attached to a side of the first sealing ring (4) that is away from the concrete structure (2); A plurality of through holes are provided on the annular plate (5) along the circumference of the annular plate (5); one end of each of the plurality of connecting rods (6) is used to pass through the through holes on the plurality of annular plates (5) one by one and then be fixed in the concrete structure (2); and the plurality of connecting rods (6) are all connected to the annular plate (5) to fix the first sealing ring (4) between the annular plate (5) and the concrete structure (2); One end of the plurality of connecting rods (6) away from the concrete structure (2) is located on a side of the annular plate (5) away from the first sealing ring (4), and the rod body of the connecting rod (6) is fixedly connected to the annular plate (5); The closed structure also includes a resistance plate (7), on which a sleeve hole is provided, and the sleeve hole can be sleeved on the pipeline (3) in the concrete structure (2); A plurality of through holes are provided on the resistance plate (7) along the circumference of the sleeve hole, and the plurality of through holes on the resistance plate (7) are sleeved on the plurality of connecting rods (6) in a one-to-one correspondence. The resistance plate (7) is mounted on the connecting rods (6) and is located on a side of the annular plate (5) that is away from the first sealing ring (4); The inner wall of the sleeve hole is in contact with the outer wall of the pipeline (3) in the concrete structure (2); The sealed structure also includes a second sealing ring (8), which is abutted between the resistance plate (7) and the annular plate (5).

2. The closed structure according to claim 1, characterized in that: There are two second sealing rings (8), and one of the two second sealing rings (8) is located on a side of the plurality of connecting rods (6) close to the pipeline (3) in the concrete structure (2); Another second sealing ring (8) is located on a side of the plurality of connecting rods (6) facing away from the pipeline (3) in the concrete structure (2).

3. The closed structure according to claim 1, characterized in that: The thickness of the second sealing ring (8) is greater than the thickness of the first sealing ring (4).

4. The closed structure according to claim 1, characterized in that: The connecting rod (6) is an expansion bolt.

5. The closed structure according to any one of claims 1 to 4, characterized in that: There are two first sealing rings (4), and one of the two first sealing rings (4) is located on a side of the plurality of connecting rods (6) close to the pipeline (3) in the concrete structure (2); Another of the first sealing rings (4) is located on a side of the plurality of connecting rods (6) that faces away from the pipeline (3) in the concrete structure (2).

6. A civil air defense building, characterized in that: The civil air defense engineering building comprises a concrete structure, a pipeline and the enclosed structure according to any one of claims 1 to 5, and the enclosed structure is installed between the concrete structure and the pipeline.

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