A kit facilitating installation of a civil air defense door frame and a pre-buried sleeve

Abstract

The utility model relates to the technical field of civil air defence door, and disclose a kit convenient to civil air defence door frame and pre -buried sleeve pipe installation, in prior art, when pouring civil air defence wall, the sleeve pipe may have slight displacement under the impact of concrete, make the door frame and sleeve pipe alignment difficult in later period, increased the difficulty of later period installation, the utility model through setting up pre -buried subassembly, before pouring civil air defence wall, through bolt, nut and T -shaped nut will door frame body and sleeve pipe body assemble together, and when installing T -shaped nut, T -shaped nut will apply extrusion pressure to sealant pad, make sealant pad deformation and carry out airtight treatment to sleeve pipe body, because door frame body and sleeve pipe body are assembled together, make after completing pouring operation, door frame body and sleeve pipe body and can be aligned, convenient subsequent dismounting or installing door frame body.

Description

Technical Field

[0001] This utility model relates to the field of civil defense door technology, and in particular to a kit that facilitates the installation of civil defense door frames and pre-embedded sleeves. Background Technology

[0002] Civil defense doors, also known as air defense doors, are the entrances and exits of civil air defense projects. They belong to civil defense protection equipment and have functions such as waterproofing, explosion-proofing, and air pollution resistance. They are mainly composed of door leaves, door frames, hinges, locks, sealing strips, and other components.

[0003] In civil defense engineering construction, the installation of civil defense doors is a crucial step in ensuring protective functions. Currently, the mainstream method is to use a pre-embedded anchor hook pouring process. This process requires the anchor hooks to be firmly connected to the door frame in advance, and then the entire structure is pre-embedded in the steel reinforcement skeleton of the civil defense wall. Subsequently, concrete pouring is carried out simultaneously. After the concrete has completely solidified, the door frame and the wall form a stable whole with strong impact resistance. However, if the door frame needs to be disassembled later, it is difficult and can easily damage the wall structure. To improve the convenience of later maintenance, some construction units have innovatively adopted a sleeve-assisted installation process. During operation, the sleeve is first accurately positioned according to the bolt hole position of the door frame. After the sleeve is reliably fixed to the steel reinforcement of the civil defense wall, it is poured together with the wall concrete. After the civil defense wall concrete reaches the design strength and is completely hardened, the civil defense door frame is aligned with the sleeve position, and high-strength bolts are inserted into the bolt holes of the sleeve and the door frame in sequence to complete the assembly and fixation of the door frame and the wall. This process not only ensures the firmness of the door frame installation, but also provides great convenience for the disassembly, inspection or replacement of the door frame in the later stage.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: The installation method of using a sleeve to cooperate with the door frame of the air-raid shelter provides great convenience for the disassembly, inspection or replacement of the door frame in the later stage. However, during the pouring of the air-raid shelter wall, the sleeve may be slightly displaced due to the impact of the concrete, which will make it difficult to align the door frame with the sleeve and hinder the assembly operation. Utility Model Content

[0005] The technical problem to be solved by this utility model is that in the prior art, when pouring the concrete for the civil defense wall, the sleeve may be slightly displaced due to the impact of the concrete, which makes it difficult to align the door frame with the sleeve later and increases the difficulty of the later installation. To this end, we propose a kit that facilitates the installation of the civil defense door frame and the pre-embedded sleeve.

[0006] To achieve the above objectives, this application adopts the following technical solution: a kit for facilitating the installation of a door frame and a pre-embedded sleeve for a civil defense door, comprising: a door frame assembly, a pre-embedded component provided on one side of the door frame assembly, the door frame assembly including a door frame body, the pre-embedded component including a sleeve body, a positioning component fixedly connected to the outer surface of the sleeve body, a bolt provided inside the sleeve body, a nut threadedly connected to one end of the bolt, a T-nut threadedly connected to the other end of the bolt, the door frame body and the sleeve body being assembled together by the bolt and the nut, a sealing gasket being fitted on the outer surface of the bolt, the sealing gasket corresponding to the sleeve body.

[0007] Preferably, the door frame body has multiple sets of through holes, one end of the bolt extends through the through hole to the other side of the door frame body, and the through hole communicates with the inner cavity of the sleeve body; this is to facilitate passing the bolt through the door frame body, and then assembling the door frame and the sleeve body together with the bolt, nut and T-nut.

[0008] Preferably, the door frame body has a latch hole, which corresponds to the latch of the door lock installed on the door leaf; this is used to lock the door leaf and the door frame body by the door lock installed on the door leaf after the door leaf is installed on the door frame body.

[0009] Preferably, the sleeve body has a compression groove, which is close to the T-nut end. The smaller diameter end of the sealing gasket matches the compression groove. This is used to compress the sealing gasket through the T-nut and the compression groove when the T-nut is rotated, causing it to deform and seal the sleeve body.

[0010] Preferably, the positioning component is provided in three sets, and an isolation sleeve is installed on the positioning component at the T-nut end, with the T-nut located inside the isolation sleeve; this is used to isolate the T-nut from the outside world when pouring concrete for the civil defense wall, so that it is not affected by the concrete.

[0011] Preferably, a protective cover A is installed at one end of the isolation sleeve, a protective cover B is threadedly connected to one end of the bolt, and a nut corresponds to the protective cover B; this is used to isolate the bolt, nut, and T-nut from the outside environment during concrete pouring.

[0012] Preferably, a washer is fitted on the bolt, and the washer is positioned between the T-nut and the sealing gasket; the washer is used to distribute the compressive force on the T-nut through the washer, thereby making the sealing gasket bear force evenly.

[0013] The technical effects and advantages of this utility model are as follows: In this utility model, before pouring the civil defense wall, the door frame body and the sleeve body are assembled together by bolts, nuts and T-nuts. When installing the T-nuts, the T-nuts will apply pressure to the sealing gasket, causing the sealing gasket to deform and seal the sleeve body. Because the door frame body and the sleeve body are assembled together, the door frame body and the sleeve body can be aligned after the pouring operation is completed, which facilitates the subsequent disassembly or installation of the door frame body. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is a schematic diagram of the door frame assembly structure of this utility model; Figure 3 This is a schematic cross-sectional view of the pre-embedded component of this utility model; Figure 4 This is a schematic cross-sectional view of the sleeve body of this utility model.

[0015] Legend: 1. Door frame assembly; 11. Door frame body; 12. Through hole; 13. Lock tongue hole; 2. Embedded assembly; 21. Sleeve body; 211. Extrusion groove; 22. Positioning component; 23. Isolation sleeve; 231. Protective cover A; 24. Bolt; 241. Protective cover B; 25. Nut; 26. T-nut; 27. Sealing gasket; 28. Washer. Detailed Implementation

[0016] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0017] Reference Figures 1 to 4As shown, this utility model provides a technical solution: a kit for facilitating the installation of a door frame and a pre-embedded sleeve for a civil defense door, comprising: a door frame assembly 1, a pre-embedded component 2 provided on one side of the door frame assembly 1, the door frame assembly 1 including a door frame body 11, the pre-embedded component 2 including a sleeve body 21, a positioning component 22 fixedly connected to the outer surface of the sleeve body 21, a bolt 24 provided inside the sleeve body 21, a nut 25 threadedly connected to one end of the bolt 24, a T-nut 26 threadedly connected to the other end of the bolt 24, the door frame body 11 and the sleeve body 21 being assembled together by the bolt 24 and the nut 25, a sealing gasket 27 being sleeved on the outer surface of the bolt 24, the sealing gasket 27 corresponding to the sleeve body 21.

[0018] Before pouring the concrete for the air-raid shelter, the door frame body 11 and the sleeve body 21 are assembled together using bolts 24, nuts 25, and T-nuts 26. During the installation of the T-nuts 26, they continuously apply pressure to the sealing gasket 27, causing it to deform. The deformed sealing gasket 27 fills the gap between the sleeve body 21 and the bolts 24, thus sealing the sleeve body 21 and preventing air from moving from one side of the air-raid shelter to the other during actual use. After the sleeve body 21 is installed, the door frame body 11 is lifted using hoisting equipment and moved to the designated location. Then, the door frame body 11 is fixed using methods such as erecting a fixing frame. During the process, the position of the door frame body 11 can be determined by the positioning component 22. When the positioning component 22 installed in the middle of the sleeve body 21 is in the middle of the wall, the position of the door frame body 11 is optimal. Then, the civil defense wall is poured with concrete. After the concrete has fully hardened, the sleeve body 21 and the civil defense wall become an integral part. When the door frame body 11 needs to be disassembled later, the bolts 24, nuts 25 and T-nuts 26 are removed, and the door frame body 11 can be removed from the civil defense wall. The sleeve body 21 remains in the civil defense wall. By assembling the door frame body 11 and the sleeve body 21 together before pouring, the sleeve body 21 will not shift after the pouring is completed, which facilitates the disassembly and installation of the door frame body 11 later.

[0019] Reference Figure 1 and Figure 2 As shown, this utility model provides a technical solution: a kit for facilitating the installation of a door frame and a pre-embedded sleeve for a civil defense door. The door frame body 11 has multiple sets of through holes 12. One end of a bolt 24 extends through the through hole 12 to the other side of the door frame body 11. The through hole 12 communicates with the inner cavity of the sleeve body 21. The door frame body 11 has a latch hole 13, which corresponds to the latch of the door lock installed on the door leaf.

[0020] By opening a through hole 12 on the door frame body 11, it is convenient for the operator to directly pass the bolt 24 through the door frame body 11, thereby carrying out the subsequent installation work. The lock tongue hole 13 that matches the door leaf is opened on the door frame body 11 so that the door lock can be used normally after the door leaf is installed on the door frame body 11.

[0021] Reference Figure 1 , Figure 3 and Figure 4 As shown, this utility model provides a technical solution: a kit for facilitating the installation of a door frame and a pre-embedded sleeve in a civil defense door. The sleeve body 21 has a compression groove 211, which is close to the end of the T-nut 26. The smaller diameter end of the sealing gasket 27 matches the compression groove 211. Three sets of positioning members 22 are provided. An isolation sleeve 23 is installed on the positioning member 22 at the end of the T-nut 26. The T-nut 26 is located inside the isolation sleeve 23. A protective cover A231 is installed on one end of the isolation sleeve 23. A protective cover B241 is threaded to one end of the bolt 24. The nut 25 corresponds to the protective cover B241. A washer 28 is fitted on the bolt 24. The washer 28 is located between the T-nut 26 and the sealing gasket 27.

[0022] The sealing gasket 27 is integrally molded and mainly consists of two structures: one end is a cylinder with a smaller overall diameter, and the other end is a ring with a larger diameter. The smaller diameter cylinder corresponds to the extrusion groove 211, and the larger diameter ring corresponds to the washer 28. When the operator rotates the T-nut 26, the extrusion force of the T-nut 26 is transmitted to the sealing gasket 27 through the washer 28. This, together with the extrusion groove 211, compresses the sealing gasket 27, causing it to deform and fill the gap between the sleeve body 21 and the bolt 24, thereby increasing the airtightness of the entire device. By setting the isolation sleeve 23, after the pouring is completed, the isolation sleeve 23 is also located in the air-raid shelter wall, so that the end of the T-nut 26 is on the same plane as the air-raid shelter wall. The protective cover A231 and the protective cover B241 protect the nut 25, the T-nut 26, and the bolt 24 during the pouring process, preventing them from being contaminated with concrete and affecting the subsequent dismantling operations.

[0023] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A kit for facilitating the installation of a civil defense door frame and a pre-embedded sleeve, characterized in that, include: A door frame assembly, wherein a pre-embedded component is provided on one side of the door frame assembly, the door frame assembly includes a door frame body, the pre-embedded component includes a sleeve body, a positioning component is fixedly connected to the outer surface of the sleeve body, a bolt is provided inside the sleeve body, a nut is threaded to one end of the bolt, and a T-nut is threaded to the other end of the bolt, the door frame body and the sleeve body are assembled together by the bolt and the nut, and a sealing gasket is provided on the outer surface of the bolt, the sealing gasket corresponding to the sleeve body.

2. The kit for facilitating the installation of the door frame and pre-embedded sleeve of the air-raid shelter door according to claim 1, characterized in that: The door frame body has multiple sets of through holes, and one end of the bolt extends through the through hole to the other side of the door frame body. The through hole is connected to the inner cavity of the sleeve body.

3. The kit for facilitating the installation of the door frame and pre-embedded sleeve of the air-raid shelter door according to claim 1, characterized in that: The door frame body has a latch hole, which corresponds to the latch of the door lock installed on the door leaf.

4. The kit for facilitating the installation of the door frame and pre-embedded sleeve of the air-raid shelter door according to claim 1, characterized in that: The sleeve body is provided with an extrusion groove, which is close to the end of the T-nut. The smaller end of the sealing gasket matches the extrusion groove.

5. The kit for facilitating the installation of the door frame and pre-embedded sleeve of the air-raid shelter door according to claim 1, characterized in that: The positioning component is provided in three sets. An isolation sleeve is installed on the positioning component at the end of the T-shaped nut, and the T-shaped nut is located inside the isolation sleeve.

6. The kit for facilitating the installation of the door frame and pre-embedded sleeve of the air-raid shelter door according to claim 5, characterized in that: One end of the isolation sleeve is fitted with a protective cover A, one end of the bolt is threaded with a protective cover B, and the nut corresponds to the protective cover B.

7. The kit for facilitating the installation of the door frame and pre-embedded sleeve of the air-raid shelter door according to claim 1, characterized in that: A washer is fitted onto the bolt, and the washer is positioned between the T-nut and the sealing gasket.

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