A device for sealing and reinforcing holes behind a civil defense wall

Abstract

This application relates to a device for sealing and reinforcing holes in a civil defense wall, belonging to the field of civil defense construction. It includes a base and a cylinder, which are connected. The cylinder is embedded in a hole in the civil defense wall, and the base abuts against the wall. A positioning component is provided on the cylinder to fix the cylinder relatively within the hole in the civil defense wall. This application uses the positioning component to fix the cylinder relatively within the hole in the civil defense wall, thereby fixing both the cylinder and the base relatively to the wall. Material can then be filled into the cylinder, and after the material solidifies, it can seal the hole in the civil defense wall.

Description

Technical Field

[0001] This application relates to the field of civil defense construction, and in particular to a device for sealing and reinforcing the openings behind civil defense walls. Background Technology

[0002] Civil defense walls are underground protective structures built independently to ensure the shelter of personnel and supplies, command and control of civil air defense, and medical rescue during wartime. They also include basements integrated with above-ground buildings that can be used for air defense during wartime. Civil defense projects are crucial facilities for preventing sudden enemy attacks, effectively sheltering personnel and supplies, and preserving war potential; they are engineering guarantees for sustaining urban combat and providing long-term support for anti-aggression wars until victory. When it is necessary to lay cables and pipes, operators must drill holes in the civil defense wall to pass the cables and pipes through these holes for subsequent use.

[0003] The aforementioned technologies have the following drawbacks: when holes are made in the air-raid shelter due to the arrangement of lines and pipes, the holes will affect the overall strength of the air-raid shelter, making the structure at the holes weak and affecting the use of the air-raid shelter. Summary of the Invention

[0004] In order to improve the problem that when a civil defense wall is opened due to the layout of lines and pipes, the opening of the civil defense wall will affect the overall strength of the civil defense wall and make the structure of the opening weakened, this application provides a device for sealing and reinforcing the opening of the civil defense wall.

[0005] The technical solution of the device for sealing and reinforcing the opening behind a civil defense wall provided in this application is as follows:

[0006] A device for sealing and reinforcing holes in a civil defense wall includes a chassis and a cylinder. The chassis and the cylinder are connected. The cylinder is embedded in a hole in the civil defense wall. The chassis abuts against the civil defense wall. A positioning component is provided on the cylinder. The positioning component is used to fix the cylinder relatively within the hole in the civil defense wall.

[0007] By adopting the above technical solution, the operator can move the chassis and the cylinder, so that the cylinder is embedded in the hole of the air-raid shelter wall, and the chassis and the air-raid shelter wall abut together. The operator uses the positioning component to fix the cylinder relatively in the hole of the air-raid shelter wall, so that the cylinder and the chassis are relatively fixed to the air-raid shelter wall. The operator can fill the cylinder with material. After the material solidifies, the solidified material and the cylinder can seal the hole of the air-raid shelter wall. The solidified material and the cylinder can improve the structural strength of the opening of the air-raid shelter wall, which facilitates the use of the air-raid shelter wall.

[0008] Preferably, the positioning component includes an auxiliary block, a positioning ring plate, and a positioning rod. The auxiliary block is fixedly connected to the cylinder, the positioning ring plate is sleeved on the cylinder, the positioning ring plate abuts against the auxiliary block, the positioning rod is threadedly connected to the positioning ring plate, and one end of the positioning rod abuts against the air-raid shelter wall.

[0009] By adopting the above technical solution, when it is necessary to seal the opening of the air-raid shelter wall, the operator puts the positioning ring plate on the cylinder body, moves it until the positioning ring plate abuts against the auxiliary block, moves the cylinder body so that it passes through the hole of the air-raid shelter wall, and installs the base plate on one end of the cylinder body. At this time, the operator can rotate the positioning rod, and one end of the positioning rod can abut against the air-raid shelter wall. Since the positioning ring plate and the auxiliary block abut against each other, the rotation of the positioning rod can drive the cylinder body to move, and the movement of the cylinder body can drive the movement of the base plate, so that the base plate moves to abut against the air-raid shelter wall, thereby achieving relative fixation of the cylinder body and the air-raid shelter wall.

[0010] Preferably, the cylinder and the chassis are detachably connected, one end of the cylinder abuts against one side of the chassis, and the chassis is provided with a fixing bolt, which passes through the chassis and one end of the cylinder and is threadedly connected.

[0011] By adopting the above technical solution, the cylinder and the chassis are usually placed separately. When it is necessary to seal the openings in the air-raid shelter wall, the operator can move the chassis to abut against the cylinder, move and rotate the fixing bolts so that the fixing bolts pass through the threaded connection between the chassis and the cylinder. The fixing bolts can limit the chassis and fix the chassis and the cylinder, making it easier for the chassis and the cylinder to seal the openings in the air-raid shelter wall.

[0012] Preferably, the cylinder body is provided with reinforcing ribs, and multiple reinforcing ribs are provided, and the reinforcing ribs and the cylinder body slide relative to each other.

[0013] By adopting the above technical solution, after the cylinder is installed, the operator can move the reinforcing ribs into the cylinder. The reinforcing ribs can support the cylinder and improve the structural strength of the cylinder, thereby improving the structural strength of the opening in the air-raid shelter.

[0014] Preferably, a sliding groove is provided inside the cylinder, a sliding block is fixedly connected to the reinforcing rib, the sliding block slides within the sliding groove, and a control component is provided on the reinforcing rib for controlling the relative positioning of multiple reinforcing ribs.

[0015] By adopting the above technical solution, when it is necessary to install reinforcing ribs, moving the reinforcing ribs causes the sliding block to move, so that the sliding block slides in the sliding groove. The sliding groove can limit the sliding block, thereby limiting the reinforcing ribs. Furthermore, the control components can make multiple reinforcing ribs relatively positioned, which facilitates the reinforcing ribs to provide support force to the cylinder.

[0016] Preferably, the control assembly includes a control rod and a control plate. The control rod has a control groove for embedding a reinforcing rib. The control plate abuts against the reinforcing rib. The control plate and the control rod are detachably connected. The control plate has a control component for controlling the fixation of the control plate and the control rod.

[0017] Preferably, the control component is a control bolt, which passes through the control plate and is threadedly connected to the control rod.

[0018] By adopting the above technical solution, after the reinforcing rib is moved into the cylinder, the operator can move the control rod to embed the reinforcing rib into the control groove. The control groove can limit the reinforcing rib. After the reinforcing rib is embedded in the control groove, the operator can move the control plate to make the control plate abut against the reinforcing rib, and move the control bolt to make the control bolt pass through the control plate and the control rod threaded connection. The control bolt can limit the control plate, and the control plate can limit the reinforcing rib, so that the reinforcing rib is relatively fixed in the control groove, which facilitates the positioning of the reinforcing rib in the cylinder.

[0019] Preferably, the end of the cylinder away from the chassis is provided with a cover plate, the cover plate and the cylinder are detachably connected, the cover plate is provided with a positioning bolt, the positioning bolt passes through the cover plate and is threadedly connected to the cylinder, and the cover plate is provided with a feed hole.

[0020] By adopting the above technical solution, after the cylinder is installed in a suitable position on the air-raid shelter wall, the operator can install a cover plate at one end of the cylinder to seal it. The operator can then fill the feed hole with material, reducing the possibility of material flowing out of the cylinder. When it is necessary to install the cover plate, after moving the cover plate to a suitable position on the cylinder, screw in the positioning bolts so that the positioning bolts pass through the threaded connection between the cover plate and the cylinder. The positioning bolts can limit the position of the cover plate, thereby realizing the installation of the cover plate.

[0021] Preferably, the cover plate is provided with a rotating rod, the rotating rod is rotatably connected to the cover plate, one end of the rotating rod extends out of the cover plate, the reinforcing rib is provided with an auxiliary hole for the rotating rod to pass through, a rotating block is fixedly connected to the rotating rod, an auxiliary groove is provided on the wall of the auxiliary hole for the rotating block to be embedded, an annular groove is provided in the cylinder body, the annular groove is connected to a sliding groove, and the sliding block slides in the annular groove.

[0022] By adopting the above technical solution, when the cover plate is installed on the cylinder, the movement of the cover plate can drive the movement of the rotating rod, so that the rotating rod is embedded in the auxiliary hole and the rotating block is embedded in the auxiliary groove. At this time, the operator can rotate the rotating rod, so that the rotating rod drives the rotating block to rotate. The rotating block can drive the rotation of the reinforcing rib, so that the reinforcing rib stirs the material in the cylinder and reduces the uneven distribution of the material in the cylinder.

[0023] Preferably, the cover plate has a mating groove, the bottom of the mating groove abuts against one end of the control rod, and one end of the control rod slides within the mating groove.

[0024] By adopting the above technical solution, after the cover plate is installed on the cylinder, one end of the control rod can be embedded in the mating groove, and the bottom of the mating groove can apply a thrust to one end of the control rod. The control rod can apply a thrust to the reinforcing rib near the chassis, so that the sliding block on the reinforcing rib near the chassis abuts against the bottom of the sliding groove, thereby positioning the control rod relatively inside the cylinder. When the operator rotates the rotating rod, it facilitates the movement of the sliding block in the annular groove, thereby facilitating the rotation of the reinforcing rib by the rotating rod.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. With the chassis, cylinder and positioning components, the operator can move the chassis and cylinder so that the cylinder is embedded in the hole of the air-raid shelter wall and the chassis and air-raid shelter wall are in contact. The operator uses the positioning components to fix the cylinder in the hole of the air-raid shelter wall, so that the cylinder and chassis are relatively fixed to the air-raid shelter wall. The operator can fill the cylinder with material. After the material solidifies, the solidified material and cylinder can seal the hole of the air-raid shelter wall. The solidified material and cylinder can improve the structural strength of the opening of the air-raid shelter wall and facilitate the use of the air-raid shelter wall.

[0027] 2. Through the setting of the control components, after the reinforcing rib moves to the cylinder, the operator can move the control rod to make the reinforcing rib embed into the control groove. The control groove can limit the reinforcing rib. After the reinforcing rib is embedded in the control groove, the operator moves the control plate to make the control plate abut against the reinforcing rib, and moves the control bolt to make the control bolt pass through the control plate and the control rod threaded connection. The control bolt can limit the control plate, and the control plate can limit the reinforcing rib, so that the reinforcing rib is relatively fixed in the control groove, which facilitates the positioning of the reinforcing rib in the cylinder. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the hole sealing and reinforcement device for the civil defense wall in the embodiments of this application.

[0029] Figure 2 This is a schematic diagram illustrating the installation structure of the cover plate and the positioning ring plate in the embodiments of this application.

[0030] Figure 3 This is a schematic diagram illustrating the overall structure of the chassis, cylinder, and cover plate in the embodiments of this application.

[0031] Figure 4 This is a schematic diagram illustrating the internal structure of the cylinder in the embodiments of this application.

[0032] Figure 5 This is a schematic diagram of the overall structure of the reinforcing ribs and control components in the embodiments of this application.

[0033] Figure 6 This is a schematic diagram illustrating the overall structure of the cover plate and the rotating rod in the embodiments of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Chassis; 11. Fixing bolt; 2. Cylinder; 21. Sliding groove; 22. Annular groove; 3. Positioning assembly; 31. Auxiliary block; 32. Positioning ring plate; 33. Positioning rod; 4. Reinforcing rib; 41. Sliding block; 42. Auxiliary hole; 421. Auxiliary groove; 5. Control assembly; 51. Control rod; 511. Control groove; 52. Control plate; 521. Control bolt; 6. Cover plate; 61. Positioning bolt; 62. Feed hole; 63. Mating groove; 7. Rotating rod; 71. Rotating block; 8. Air defense wall. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0036] This application discloses a device for sealing and reinforcing the openings behind a civil defense wall, such as... Figure 1 As shown, the system includes a chassis 1, a cylindrical body 2, and a cover plate 6. The cylindrical body 2 is embedded in a hole in the air-raid shelter wall 8. Both the chassis 1 and the cover plate 6 are detachably connected to the cylindrical body 2. The chassis 1 is located at one end of the cylindrical body 2, and the cover plate 6 is located at the other end of the cylindrical body 2. A positioning component 3 is provided on the cylindrical body 2, which allows the cylindrical body 2 to be relatively fixed within the hole in the air-raid shelter wall 8. When the cylindrical body 2 is relatively fixed within the hole in the air-raid shelter wall 8, the chassis 1 and the wall surface of the air-raid shelter wall 8 abut against each other.

[0037] like Figure 1 and 2 As shown, the cover plate 6 is provided with a positioning bolt 61, which is threaded through one end of the cover plate 6 and the cylinder 2. The positioning bolt 61 can be moved to abut against the surface of the cover plate 6. The chassis 1 is provided with a fixing bolt 11, which is threaded through one end of the chassis 1 and the cylinder 2. The fixing bolt 11 can be moved to abut against the surface of the cover plate 6. When it is necessary to install the cover plate 6, after moving the cover plate 6 to abut against one end of the cylinder 2, the positioning bolt 61 is moved and screwed in. The positioning bolt 61 can limit the position of the cover plate 6, thereby realizing the installation of the cover plate 6. When it is necessary to install the chassis 1, after moving the chassis 1 to abut against one end of the cylinder 2, the fixing bolt 11 is moved and screwed in. The fixing bolt 11 can limit the position of the chassis 1, thereby realizing the installation of the chassis 1.

[0038] like Figure 2 and 3As shown, the positioning component 3 includes an auxiliary block 31, a positioning ring plate 32, and a positioning rod 33. The auxiliary block 31 is fixedly connected to the outer wall of the cylinder 2. The positioning ring plate 32 is sleeved on the cylinder 2 and can be moved to abut against the auxiliary block 31. The positioning rod 33 and the positioning ring plate 32 are threadedly connected. The positioning rod 33 has a T-shaped cross-section, and one end of the positioning rod 33 abuts against the air-raid shelter wall 8. When the cylinder 2 needs to be installed into the hole of the air-raid shelter wall 8, the operator places the positioning ring plate 32 on the cylinder 2, moves the cylinder 2 so that one end of the cylinder 2 passes through the hole of the air-raid shelter wall 8, installs the base plate 1 onto the end of the cylinder 2 that passes through the air-raid shelter wall 8, and rotates the positioning rod 33 so that one end of the positioning rod 33 moves toward the air-raid shelter wall 8. When one end of the positioning rod 33 abuts against the wall surface of the air-raid shelter wall 8, the positioning rod 33 applies a pushing force to the positioning ring plate 32, which in turn applies a pushing force to the auxiliary block 31. The movement of the auxiliary block 31 drives the movement of the cylinder 2, which in turn drives the movement of the base plate 1, causing the base plate 1 to move to abut against the wall surface of the air-raid shelter wall 8, thereby achieving relative fixation between the cylinder 2 and the air-raid shelter wall 8. After the cylinder 2 is installed into the hole of the air-raid shelter wall 8, the cylinder 2 can seal and support the hole of the air-raid shelter wall 8, thereby reinforcing the air-raid shelter wall 8.

[0039] like Figure 4 and 5 As shown, the cylinder 2 is equipped with reinforcing ribs 4. In this embodiment, three reinforcing ribs 4 are provided, and the cross-section of the reinforcing ribs 4 is X-shaped. The reinforcing ribs 4 and the cylinder 2 slide relative to each other. A sliding groove 21 is provided on the inner wall of the cylinder 2. The length direction of the sliding groove 21 is consistent with the length direction of the cylinder 2. A sliding block 41 is fixedly connected to the end of the reinforcing rib 4, and the sliding block 41 slides within the sliding groove 21. After the cylinder 2 is installed into the hole of the air-raid shelter wall 8, the operator can install the reinforcing ribs 4. Moving the reinforcing ribs 4 causes the reinforcing ribs 4 to drive the sliding block 41 to move, so that the sliding block 41 moves within the sliding groove 21. The sliding groove 21 can limit the sliding block 41, thereby limiting the reinforcing rib 4. After the reinforcing ribs 4 are installed in the cylinder 2, the reinforcing ribs 4 can improve the supporting structural strength of the cylinder 2, thereby improving the supporting strength of the cylinder 2 for the hole of the air-raid shelter wall 8, and facilitating the reinforcement of the opening of the air-raid shelter wall 8 by the cylinder 2.

[0040] like Figure 4 and 5As shown, a control component 5 is provided on the reinforcing rib 4, which is used to position the three reinforcing ribs 4 relative to each other. The control component 5 includes a control rod 51 and a control plate 52. There are two control rods 51, and each control rod 51 has a control groove 511. In this embodiment, there are three control grooves 511 for the reinforcing ribs 4 to be embedded in. The control plate 52 and the reinforcing ribs 4 abut against each other. When the control plate 52 and the reinforcing ribs 4 abut against each other, the reinforcing ribs 4 abut against the bottom of the control grooves 511, thereby positioning the reinforcing ribs 4 relative to the control rods 51. The control plate 52 and the control rods 51 are detachably connected. The control plate 52 is provided with a control component, which is used to control the fixing of the control plate 52 and the control rods 51. In this embodiment, the control component is a control bolt 521, which passes through the control plate 52 and the control rods 51 and is threadedly connected. After the reinforcing rib 4 moves into the cylinder 2, the operator can move the control rod 51 to embed the reinforcing rib 4 into the control groove 511. Then, the operator moves the control plate 52 to abut against the reinforcing rib 4 and screws in the control bolt 521 so that the control bolt 521 passes through the control plate 52 and the control rod 51 for threaded connection. At this time, the control plate 52 can seal the opening of the control groove 511, so that the reinforcing rib 4 is relatively positioned in the control groove 511. This makes all three reinforcing ribs 4 relatively positioned with the control rod 51, reducing the possibility of the reinforcing rib 4 sliding in the cylinder 2 and facilitating the uniform support of the three reinforcing ribs 4 on the inner wall of the cylinder 2.

[0041] like Figure 4 and 6As shown, a feed hole 62 is provided on the cover plate 6, and a rotating rod 7 is provided on the cover plate 6. The rotating rod 7 is rotatably connected to the cover plate 6. The cross-section of the rotating rod 7 is T-shaped, and one end of the rotating rod 7 extends out of the cover plate 6. The length direction of the rotating rod 7 is consistent with the length direction of the cylinder 2. An auxiliary hole 42 is provided on the reinforcing rib 4 for the end of the rotating rod 7 away from the cover plate 6 to pass through. A rotating block 71 is fixedly connected to the rotating rod 7. An auxiliary groove 421 is provided on the wall of the auxiliary hole 42 for the rotating block 71 to be embedded. An annular groove 22 is provided on the inner wall of the cylinder 2. The annular groove 22 is connected to the sliding groove 21. In this embodiment, three annular grooves 22 are provided, and the sliding block 41 slides in the annular grooves 22. When the reinforcing rib 4 is installed inside the cylinder 2 and embedded in the control groove 511, and the control bolt 521 passes through the control plate 52 and the control rod 51 and is threadedly connected, the operator can install the cover plate 6. Move the cover plate 6 to install it at the end of the cylinder 2 away from the chassis 1. The movement of the cover plate 6 can drive the movement of the rotating rod 7, so that one end of the rotating rod 7 passes through the auxiliary rod and the rotating block 71 is embedded in the auxiliary groove 421. At this time, the installation of the cover plate 6 is completed. After the cover plate 6 is installed, the operator fills the cylinder 2 with material through the feed hole 62. Since the material enters from one end of the cylinder 2, the material in the cylinder 2 is evenly distributed. At this time, the operator can rotate the rotating rod 7. The rotation of the rotating rod 7 can drive the rotating block 71 to rotate, so that the rotating block 71 abuts against the wall of the auxiliary groove 421, thereby driving the rotation of the reinforcing rib 4. The reinforcing rib 4 can stir the material in the cylinder 2, so that the material in the cylinder 2 is evenly distributed, making it easier for the material to fill the cylinder 2, thus making it easier for the cylinder 2 to support and seal the holes of the air-raid shelter wall 8.

[0042] like Figure 4 , 5 As shown in Figure 6, a mating groove 63 is provided on the side of the cover plate 6 facing the cylinder 2. The mating groove 63 is arranged in a ring shape. After the cover plate 6 is installed, one end of the control rod 51 abuts against the bottom of the mating groove 63. The bottom of the mating groove 63 can apply a pushing force to the control rod 51. The control rod 51 applies a pushing force to the reinforcing rib 4, causing the sliding block 41 on the reinforcing rib 4 near the chassis 1 to abut against the bottom of the sliding groove 21. This further improves the positioning accuracy of the reinforcing rib 4 and facilitates the sliding block 41 to slide within the annular groove 22 when the reinforcing rib 4 rotates. When the operator rotates the rotating rod 7, the rotation of the reinforcing rib 4 can drive the rotation of the control rod 51, causing one end of the control rod 51 to rotate within the mating groove 63. The mating groove 63 can limit the rotation of the control rod 51, thereby facilitating the rotation of the reinforcing rib 4.

[0043] The implementation principle of the rear opening sealing and reinforcement device for a civil defense wall according to an embodiment of this application is as follows:

[0044] When it is necessary to seal the opening of the air-raid shelter wall 8, the operator puts the positioning ring plate 32 on the cylinder 2, moves the cylinder 2 so that one end of the cylinder 2 passes through the hole of the air-raid shelter wall 8, moves the base plate 1 to abut against the end of the cylinder 2 that passes through the hole of the air-raid shelter wall 8, and installs the base plate 1 to one end of the cylinder 2 by fixing bolts 11. Then, the positioning rod 33 is rotated so that one end of the positioning rod 33 moves toward the air-raid shelter wall 8. After one end of the positioning rod 33 abuts against the air-raid shelter wall 8, the positioning rod 33 is rotated until the base plate 1 abuts against the air-raid shelter wall 8, thereby realizing the installation of the cylinder 2.

[0045] After the cylinder 2 is installed, the operator moves the reinforcing rib 4 to make the sliding block 41 slide in the sliding groove 21. After the reinforcing rib 4 moves into the cylinder 2, the operator moves the control rod 51 to make the reinforcing rib 4 embed into the control groove 511, and moves the control plate 52 to make the control plate 52 abut against the reinforcing rib 4. The control plate 52 and the control rod 51 are fixed relative to each other by the control bolt 521.

[0046] Next, the cover plate 6 is installed. The cover plate 6 is moved to abut against the end of the cylinder 2 away from the chassis 1, and the cover plate 6 and the cylinder 2 are fixed relative to each other by the positioning bolts 61. The installation of the cover plate 6 allows the rotating rod 7 to pass through the auxiliary hole 42, the rotating block 71 to be embedded in the auxiliary groove 421, and one end of the control rod 51 to abut against the bottom of the mating groove 63. Then, the operator fills the cylinder 2 with material through the feed hole 62. When filling the material, the rotating rod 7 can be rotated, causing the rotating rod 7 to drive the rotation of the reinforcing rib 4. The reinforcing rib 4 stirs the material in the cylinder 2, making the material in the cylinder 2 evenly distributed. After the material filling is completed and the material has solidified, the opening of the air-raid shelter 8 can be sealed, thereby reinforcing the air-raid shelter 8.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for sealing and reinforcing openings behind a civil defense wall, characterized in that: It includes a chassis (1) and a cylinder (2), the chassis (1) and the cylinder (2) are connected, the cylinder (2) is embedded in the hole of the air-raid shelter (8), the chassis (1) and the air-raid shelter (8) abut against each other, and the cylinder (2) is provided with a positioning component (3), the positioning component (3) is used to fix the cylinder (2) relatively in the hole of the air-raid shelter (8); The positioning component (3) includes an auxiliary block (31), a positioning ring plate (32), and a positioning rod (33). The auxiliary block (31) is fixedly connected to the cylinder (2). The positioning ring plate (32) is sleeved on the cylinder (2). The positioning ring plate (32) and the auxiliary block (31) abut against each other. The positioning rod (33) and the positioning ring plate (32) are threadedly connected. One end of the positioning rod (33) abuts against the air-raid shelter (8). The cylinder (2) and the chassis (1) are detachably connected. One end of the cylinder (2) abuts against one side of the chassis (1). The chassis (1) is provided with a fixing bolt (11). The fixing bolt (11) passes through the chassis (1) and one end of the cylinder (2) and is threadedly connected. The cylinder (2) is provided with reinforcing ribs (4), and there are multiple reinforcing ribs (4). The reinforcing ribs (4) and the cylinder (2) slide relative to each other. The cylinder (2) has a sliding groove (21) inside, and a sliding block (41) is fixedly connected to the reinforcing rib (4). The sliding block (41) slides in the sliding groove (21). The reinforcing rib (4) is provided with a control component (5). The control component (5) is used to control the relative positioning of multiple reinforcing ribs (4). The control assembly (5) includes a control rod (51) and a control plate (52). The control rod (51) has a control groove (511) for the reinforcing rib (4) to be embedded in. The control plate (52) and the reinforcing rib (4) abut against each other. The control plate (52) and the control rod (51) are detachably connected. The control plate (52) has a control component for controlling the fixing of the control plate (52) and the control rod (51).

2. The device for sealing and reinforcing the opening behind a civil defense wall according to claim 1, characterized in that: The control component is a control bolt (521), which is threaded through the control plate (52) and the control rod (51).

3. The device for sealing and reinforcing the opening behind a civil defense wall according to claim 1, characterized in that: The end of the cylinder (2) away from the chassis (1) is provided with a cover plate (6). The cover plate (6) and the cylinder (2) are detachably connected. The cover plate (6) is provided with a positioning bolt (61). The positioning bolt (61) passes through the cover plate (6) and is threadedly connected to the cylinder (2). The cover plate (6) is provided with a feed hole (62).

4. The device for sealing and reinforcing the opening behind a civil defense wall according to claim 3, characterized in that: The cover plate (6) is provided with a rotating rod (7), which is rotatably connected to the cover plate (6). One end of the rotating rod (7) extends out of the cover plate (6). The reinforcing rib (4) is provided with an auxiliary hole (42) for the rotating rod (7) to pass through. A rotating block (71) is fixedly connected to the rotating rod (7). An auxiliary groove (421) is provided on the wall of the auxiliary hole (42) for the rotating block (71) to be embedded. An annular groove (22) is provided inside the cylinder (2). The annular groove (22) and the sliding groove (21) are connected. The sliding block (41) slides in the annular groove (22).

5. The device for sealing and reinforcing the opening behind a civil defense wall according to claim 4, characterized in that: The cover plate (6) has a mating groove (63), the bottom of the mating groove (63) abuts against one end of the control rod (51), and one end of the control rod (51) slides within the mating groove (63).

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