Detachable installation of civil air defense protection partition

CN224742270UActive Publication Date: 2026-09-11ANHUI CIVIL AIR DEFENSE ARCHITECTURE DESIGN & RES INST
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Patent Information

Application Number
CN202521805555.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-09-11
Estimated Expiration
2035-08-25

AI Technical Summary

Technical Problem

[0003]如公开号为CN219119097U的一种人防工程密封防护门,包括人防门本体,所述人防门本体的一侧端面上矩形分布有四组锁具组件,所述人防门本体的中部固定连接有第二支架,所述第二支架的内部转动连接有转杆,所述转杆的两端分别与四组所述锁具组件传动连接,所述转杆的外围端面上固定连接有蜗轮,所述人防门本体的外侧端面上位于所述蜗轮的外围固定连接有第三支架,所述第三支架的内部转动连接有与所述蜗轮啮合的蜗杆,所述蜗杆的一端固定连接有外框,所述外框的内部转动连接有延伸至外侧的转动组件,该一种人防工程密封防护门,解决了现有技术中存在不具有防止意外转动锁止结构的结构等缺点

Benefits of technology

1、在对防护门主体锁定时,在调节组件的配合使用下,能够在使用者脚踩下活动板,通过固定在活动板上的驱动杆能够使驱动管旋转,进而能够使两个T形滑动插块向相对的一侧移动,使T形滑动插块的端部向相对的一侧移动,在关上防护门主体时,在复位伸缩杆和复位弹簧弹力作用下,能够快速使T形滑动插块插接在相邻锁定口的内腔中,能够快速对防护门主体关上锁定,提高关闭的效率。

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Abstract

The utility model relates to the technical field of civil air defense engineering, and disclose a detachable installation's civil air defense protection partition, including wall, the inner chamber of wall installs door frame, and the other side of wall is provided with the protective door main part, the front side of protective door main part is fixedly installed with fixed slot in the top department, and the inner chamber of fixed slot is provided with adjusting assembly, and the front side of wall is close to the recess that sets up in the other side department, when locking protective door main part, under the cooperation use of adjusting assembly, can be in the user foot presses down movable plate, through the drive rod of fixed in movable plate can make drive pipe rotate, and then can make two T shape sliding insert block move to opposite side, make the end of T shape sliding insert block move to opposite side, when closing protective door main part, under the reset telescopic link and reset spring elasticity effect, can make T shape sliding insert block insert in the inner chamber of adjacent locking mouth quickly, can close and lock protective door main part quickly, improve the efficiency of closing.
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Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering technology, specifically a detachable and installable civil defense protective partition. Background Technology

[0002] Civil defense protective partitions (or protective unit partitions) are key facilities used in civil defense projects to separate independent protective units. Their main function is to ensure that if a protective unit is damaged in wartime, it will not affect the protective effectiveness of adjacent units.

[0003] For example, a civil defense engineering sealed protective door with publication number CN219119097U includes a civil defense door body. Four sets of locking assemblies are rectangularly distributed on one side end face of the civil defense door body. A second bracket is fixedly connected to the middle of the civil defense door body. A rotating rod is rotatably connected inside the second bracket. The two ends of the rotating rod are respectively drivenly connected to the four sets of locking assemblies. A worm gear is fixedly connected to the outer end face of the rotating rod. A third bracket is fixedly connected to the outer end face of the civil defense door body, located around the worm gear. A worm gear meshing with the worm gear is rotatably connected inside the third bracket. One end of the worm gear is fixedly connected to an outer frame. A rotating assembly extending to the outside is rotatably connected inside the outer frame. This civil defense engineering sealed protective door solves the shortcomings of existing technologies, such as the lack of a structure to prevent accidental rotation and locking.

[0004] The aforementioned patent proposes to lock the civil defense door by setting four sets of locking components. However, when closing the civil defense door, it is usually in an emergency situation that the civil defense door needs to be closed quickly. Although the aforementioned patent can close and lock the civil defense door, its closing and locking efficiency is low, which reduces the effectiveness of the device.

[0005] Therefore, we propose a detachable and installable civil defense protective partition to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a detachable and installable civil defense protective partition to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a detachable and installable civil defense protective partition, including a wall, a door frame installed in the inner cavity of the wall, a protective door body provided on the other side of the wall, a fixing groove fixedly installed on the front side of the protective door body near the top, an adjustment component provided in the inner cavity of the fixing groove, and a groove provided on the front side of the wall near the other side, and a limit component provided in the inner cavity of the groove; The adjustment assembly includes a T-shaped sliding block slidably connected to the bottom of the inner cavity of the fixed groove near both sides, and a rack plate fixedly installed on the opposite side of the T-shaped sliding block near the front and rear sides. A rotating gear is meshed on the opposite side of the rack plate. A through hole is opened at the top of the rotating gear, and a drive tube is fixedly installed at the bottom of the rotating gear. The bottom end of the drive tube movably penetrates the bottom of the inner cavity of the fixed groove. The inner cavity of the drive tube and the rotating gear movably penetrates the drive rod together, and a movable plate is fixedly installed at the bottom end of the drive rod. A foot pedal is fixedly installed on the front side of the movable plate.

[0008] Preferably, a fixed telescopic rod is fixedly installed at the bottom of the movable plate near both sides, and a fixed block is fixedly installed at the bottom end of the fixed telescopic rod. The rear side of the fixed block is fixedly connected to the main body of the protective door. A fixed spring is movably sleeved on the outer periphery of the fixed telescopic rod, and the two ends of the fixed spring are fixedly connected to the movable plate and the fixed block, respectively.

[0009] Preferably, a reset telescopic rod is fixedly installed on the opposite side of the T-shaped sliding plug near the top, and two fixed frames are fixedly installed at the bottom of the inner cavity of the fixed groove near the middle position. The opposite ends of the reset telescopic rods are respectively fixedly connected to the adjacent fixed frames. A reset spring is movably sleeved on the outer periphery of the reset telescopic rod, and the two ends of the reset spring are respectively fixedly connected to the T-shaped sliding plug and the fixed frame.

[0010] Preferably, locking openings are provided on both sides of the inner cavity of the door frame near the top, a sealing gasket is fixedly installed on the front side of the protective door body, a connecting block B is fixedly installed on the front side of the wall near the other side, and a fixed shaft is rotatably connected to the top of the connecting block B, a connecting block A is fixedly installed on one side of the protective door body, and a through opening adapted to the fixed shaft is provided on the top of the connecting block A, and the connecting block A is movably sleeved on the outer periphery of the adjacent fixed shaft.

[0011] Preferably, the limiting assembly includes a limiting disc fixedly sleeved on the outer periphery of an adjacent fixed shaft near its bottom end and several limiting holes opened on the outer periphery of the limiting disc. A T-shaped insert is movably inserted into the inner cavity of an adjacent limiting hole. A threaded rod is fixedly installed on the rear side of the T-shaped insert. A threaded tube is threadedly connected to the outer periphery of the threaded rod. The rear end of the threaded tube is rotatably connected to the rear side of the inner cavity of the groove. A driven bevel gear is fixedly sleeved on the outer periphery of the threaded tube near its front end. A driving bevel gear meshes with the top of the driven bevel gear. A vertical rod is fixedly installed on the top of the driving bevel gear. The top end of the vertical rod is fixedly connected to the bottom of the inner cavity of the groove. A worm gear is fixedly sleeved on the outer periphery of the vertical rod near its top end. A worm is meshed on one side of the worm gear. A rocker wheel is fixedly installed at the front end of the worm.

[0012] Preferably, a rectangular block B is rotatably connected to the outer periphery of the worm near the middle position, and the top of the rectangular block B is fixedly connected to the top of the groove cavity; a rectangular block A is rotatably connected to the outer periphery of the vertical rod near the middle position, and one side of the rectangular block A is fixedly connected to the side wall of the groove cavity.

[0013] Preferably, a limiting telescopic rod is fixedly installed on the rear side of the T-shaped insert near both sides, and the rear side of the limiting telescopic rod is fixedly connected to the rear side of the groove cavity.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. When locking the main body of the protective door, with the cooperation of the adjustment components, the user can step on the movable plate, and the drive rod fixed on the movable plate can rotate the drive tube, which in turn can move the two T-shaped sliding blocks to the opposite side. When closing the main body of the protective door, under the action of the return telescopic rod and the return spring, the T-shaped sliding blocks can be quickly inserted into the inner cavity of the adjacent locking port, which can quickly lock the main body of the protective door and improve the closing efficiency.

[0015] 2. When the main body of the protective door is open, with the cooperation of the limiting components, the T-shaped plug can be inserted into the inner cavity of the adjacent limiting hole, which can limit the rotation position of the limiting plate, thereby limiting the opening position of the main body of the protective door, improving the stability of the main body of the protective door when it is open, and thus improving the safety of the main body of the protective door when it is open. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the protective door body, vertical rod, and limiting plate of this utility model; Figure 3 This is a three-dimensional structural diagram of the adjustment component of this utility model; Figure 4 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 5 For the present utility model Figure 2 Enlarged view at point B in the middle; Figure 6 For the present utility model Figure 3 Enlarged view of point C.

[0017] In the diagram: 1. Wall; 2. Door frame; 21. Locking opening; 3. Main body of protective door; 31. Sealing gasket; 32. Fixed shaft; 33. Connecting block A; 34. Connecting block B; 35. Through opening; 4. Fixed groove; 5. Adjustment assembly; 51. T-shaped sliding block; 511. Reset telescopic rod; 512. Reset spring; 52. Rack plate; 53. Drive tube; 54. Drive rod; 55. Movable plate; 551. Fixed telescopic rod; 552. Fixed block; 553. Fixed spring; 56. Foot pedal; 57. Rotary gear; 6. Limiting assembly; 61. Limiting plate; 62. T-shaped rod; 621. Limiting telescopic rod; 63. Threaded rod; 64. Threaded tube; 65. Driven bevel gear; 66. Driving bevel gear; 67. Vertical rod; 671. Rectangular block A; 68. Worm gear; 69. Worm; 691. Rectangular block B. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 Please see Figure 1-6 A detachable and installable civil defense protective partition includes a wall 1, a door frame 2 installed in the inner cavity of the wall 1, a protective door body 3 set on the other side of the wall 1, a fixing groove 4 fixedly installed on the front side of the protective door body 3 near the top (the two sides of the fixing groove 4 are open), an adjustment component 5 is set in the inner cavity of the fixing groove 4, and a groove is opened on the front side of the wall 1 near the other side, and a limit component 6 is set in the inner cavity of the groove; The adjustment assembly 5 includes a T-shaped sliding block 51 slidably connected to the bottom of the inner cavity of the fixed groove 4 near both sides, and a rack plate 52 fixedly installed on the opposite side of the T-shaped sliding block 51 near the front and rear sides. The opposite side of the rack plate 52 is meshed with a rotating gear 57. The top of the rotating gear 57 has a through hole, and the bottom of the rotating gear 57 is fixedly installed with a drive tube 53. The bottom end of the drive tube 53 moves through the bottom of the inner cavity of the fixed groove 4. The inner cavities of the drive tube 53 and the rotating gear 57 move through the drive rod 54 together. (The outer circumference of the drive rod 54 is spiral, and the inner cavity of the drive tube 53 is adapted to it. When the drive rod 54 moves up and down, the drive tube 53 can move up and down. Its working principle is similar to that of a child's toy push-along saucer.) The bottom end of the drive rod 54 is fixedly installed with a movable plate 55, and the front side of the movable plate 55 is fixedly installed with a foot pedal 56.

[0020] Specifically, when locking the protective door body 3, with the cooperation of the adjustment component 5, the user can step on the movable plate 55, and the drive rod 54 fixed on the movable plate 55 can rotate the drive tube 53, thereby causing the two T-shaped sliding blocks 51 to move to opposite sides. When closing the protective door body 3, under the elastic force of the reset telescopic rod 511 and the reset spring 512, the T-shaped sliding blocks 51 can be quickly inserted into the inner cavity of the adjacent locking port 21, which can quickly close and lock the protective door body 3, improving the closing efficiency.

[0021] Fixed telescopic rods 551 are fixedly installed on both sides of the bottom of the movable plate 55. Fixed blocks 552 are fixedly installed on the bottom of the fixed telescopic rods 551. The rear side of the fixed blocks 552 is fixedly connected to the main body 3 of the protective door. Fixed springs 553 are movably sleeved on the outer periphery of the fixed telescopic rods 551. The two ends of the fixed springs 553 are fixedly connected to the movable plate 55 and the fixed blocks 552 respectively.

[0022] Specifically, by setting a fixed telescopic rod 551 and a fixed spring 553, the movable plate 55 can be restored to its initial state when it is not subjected to external force.

[0023] On the opposite side of the T-shaped sliding plug 51, near the top, a reset telescopic rod 511 is fixedly installed. Two fixed frames are fixedly installed at the bottom of the inner cavity of the fixed groove 4 near the middle position. The opposite ends of the reset telescopic rod 511 are fixedly connected to the adjacent fixed frames. A reset spring 512 is movably sleeved on the outer periphery of the reset telescopic rod 511. The two ends of the reset spring 512 are fixedly connected to the T-shaped sliding plug 51 and the fixed frame, respectively.

[0024] Specifically, by setting the reset telescopic rod 511 and the reset spring 512, the T-shaped sliding plug 51 can be restored to its initial state when it is not subjected to external force, and the T-shaped sliding plug 51 can be inserted into the inner cavity of the adjacent locking port 21.

[0025] Locking openings 21 are provided on both sides of the inner cavity of the door frame 2 near the top. A sealing gasket 31 is fixedly installed on the front side of the protective door body 3 (the sealing gasket 31 can improve the sealing between the door frame 2 and the protective door body 3). A connecting block B34 is fixedly installed on the front side of the wall 1 near the other side, and a fixed shaft 32 is rotatably connected to the top of the connecting block B34. A connecting block A33 is fixedly installed on one side of the protective door body 3, and a through opening 35 adapted to the fixed shaft 32 is provided on the top of the connecting block A33 (both the fixed shaft 32 and the through opening 35 have a regular hexagonal cross section). The connecting block A33 is movably sleeved on the outer periphery of the adjacent fixed shaft 32.

[0026] Specifically, when installing the protective door body 3, the connecting blocks A33 fixed on the protective door body 3 can be movably sleeved on the adjacent fixed shafts 32 to facilitate the installation of the protective door body 3. When disassembling, the protective door body 3 can be lifted as a whole.

[0027] Example 2 This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 4 and Figure 5 The limiting component 6 includes a limiting disc 61 fixedly sleeved on the outer periphery of the adjacent fixed shaft 32 near the bottom end and several limiting holes opened on the outer periphery of the limiting disc 61 (the several limiting holes are equidistantly opened on the outer periphery of the limiting disc 61). A T-shaped insert rod 62 is movably inserted into the inner cavity of the adjacent limiting hole. A threaded rod 63 is fixedly installed on the rear side of the T-shaped insert rod 62. A threaded tube 64 is threadedly connected to the outer periphery of the threaded rod 63. The rear end of the threaded tube 64 is rotatably connected to the rear side of the inner cavity of the groove. A driven bevel gear 65 is fixedly sleeved on the outer periphery of the threaded tube 64 near the front end. A driving bevel gear 66 meshes with the top of the driven bevel gear 65. A vertical rod 67 is fixedly installed on the top of the driving bevel gear 66. The top end of the vertical rod 67 is fixedly connected to the bottom of the inner cavity of the groove. A worm gear 68 is fixedly sleeved on the outer periphery of the vertical rod 67 near the top end. A worm 69 meshes with one side of the worm gear 68. A rocker wheel is fixedly installed at the front end of the worm 69.

[0028] Specifically, when the protective door body 3 is open, with the cooperation of the limiting component 6, the T-shaped insert 62 can be movably inserted into the inner cavity of the adjacent limiting hole, which can limit the rotation position of the limiting plate 61, thereby limiting the open position of the protective door body 3, improving the stability of the protective door body 3 when it is open, and thus improving the safety of the protective door body 3 when it is open.

[0029] A rectangular block B691 is rotatably connected to the outer periphery of the worm 69 near the middle position, and the top of the rectangular block B691 is fixedly connected to the top of the groove cavity; a rectangular block A671 is rotatably connected to the outer periphery of the vertical rod 67 near the middle position, and one side of the rectangular block A671 is fixedly connected to the side wall of the groove cavity.

[0030] Specifically, rectangular block B691 can support the worm 69, and rectangular block A671 can support the vertical rod 67.

[0031] Limiting telescopic rods 621 are fixedly installed on the rear side of the T-shaped insert 62 near both sides, and the rear side of the limiting telescopic rods 621 is fixedly connected to the rear side of the groove cavity.

[0032] Specifically, by setting the limit telescopic rod 621, the movement of the T-shaped plug 62 can be limited, thereby improving its operational stability.

[0033] Working Principle: When the protective door body 3 is open, the rocker wheel can be rotated first, causing the worm gear 69 fixed on the rocker wheel to rotate. The worm wheel 68, meshing with the worm gear 69, causes the vertical rod 67 to rotate. Under the transmission of the driving bevel gear 66 and the driven bevel gear 65, the threaded tube 64 rotates. The threaded rod 63, threaded into the inner cavity of the threaded tube 64, causes the T-shaped insert 62 to move backward under the limitation of the two limiting telescopic rods 621. This allows the end of the T-shaped insert 62 to be inserted into the inner cavity of the adjacent limiting hole on the limiting plate 61, thus limiting the open position of the protective door body 3 and improving the safety of the open position. When closing the protective door body 3, the limiting component 6 first moves the T-shaped insert 62 away from the inner cavity of the limiting hole on the adjacent limiting plate 61. Then, the vertical rod 67, fixed on the protective door body 3, can be rotated. When the protective door body 3 is closed, the foot pedal 56 can be pressed to move the movable plate 55 fixed on the foot pedal 56 downward. The drive rod 54 fixed on the movable plate 55 can rotate the drive tube 53, which in turn can rotate the rotating gear 57 fixed on the drive tube 53. This causes the two rack plates 52 meshing with the rotating gear 57 to move to opposite sides, and the T-shaped sliding blocks 51 fixed on the adjacent rack plates 52 to move to opposite sides. When the protective door body 3 is closed, the movable plate 55 can be released. With the cooperation of the fixed telescopic rod 551 and the fixed spring 553, and the elastic force of the reset telescopic rod 511 and the reset spring 512, the T-shaped sliding blocks 51 can be quickly inserted into the inner cavity of the adjacent door frame 2, which can quickly close and lock the protective door body 3, improving the closing efficiency.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A detachable and installable civil defense protective partition, comprising a wall (1), a door frame (2) installed in the inner cavity of the wall (1), and a protective door body (3) provided on the other side of the wall (1), characterized in that: A fixing groove (4) is fixedly installed on the front side near the top of the main body (3) of the protective door. An adjustment component (5) is provided in the inner cavity of the fixing groove (4). A groove is opened on the front side of the wall (1) near the other side, and a limit component (6) is provided in the inner cavity of the groove. The adjustment component (5) includes a T-shaped sliding block (51) slidably connected to the bottom of the inner cavity of the fixing groove (4) near both sides and a rack plate (52) fixedly installed on the opposite side of the T-shaped sliding block (51) near the front and rear sides. 52) A rotating gear (57) meshes with each other on opposite sides. A through hole is provided on the top of the rotating gear (57), and a drive tube (53) is fixedly installed on the bottom of the rotating gear (57). The bottom end of the drive tube (53) moves through the bottom of the inner cavity of the fixed groove (4). The inner cavities of the drive tube (53) and the rotating gear (57) move through the drive rod (54). A movable plate (55) is fixedly installed on the bottom end of the drive rod (54), and a foot pedal (56) is fixedly installed on the front side of the movable plate (55).

2. The demountably installable civil defense protective partition according to claim 1, wherein: Fixed telescopic rods (551) are fixedly installed at the bottom of the movable plate (55) near both sides. Fixed blocks (552) are fixedly installed at the bottom of the fixed telescopic rods (551). The rear side of the fixed blocks (552) is fixedly connected to the main body of the protective door (3). Fixed springs (553) are movably sleeved on the outer periphery of the fixed telescopic rods (551). The two ends of the fixed springs (553) are fixedly connected to the movable plate (55) and the fixed blocks (552) respectively.

3. The demountably installable blast-resistant partition of claim 1, wherein: On the opposite side of the T-shaped sliding plug (51), near the top, a reset telescopic rod (511) is fixedly installed. Two fixed frames are fixedly installed at the bottom of the inner cavity of the fixed groove (4) near the middle position. The opposite ends of the reset telescopic rod (511) are fixedly connected to the adjacent fixed frames. The outer periphery of the reset telescopic rod (511) is movably sleeved with a reset spring (512), and the two ends of the reset spring (512) are fixedly connected to the T-shaped sliding plug (51) and the fixed frame, respectively.

4. The detachable and installable civil defense protective partition according to claim 1, characterized in that: Locking openings (21) are provided on both sides of the inner cavity of the door frame (2) near the top. A sealing gasket (31) is fixedly installed on the front side of the protective door body (3). A connecting block B (34) is fixedly installed on the front side of the wall (1) near the other side. A fixed shaft (32) is rotatably connected to the top of the connecting block B (34). A connecting block A (33) is fixedly installed on one side of the protective door body (3). A through opening (35) that matches the fixed shaft (32) is provided on the top of the connecting block A (33). The connecting block A (33) is movably sleeved on the outer periphery of the adjacent fixed shaft (32).

5. The demountably installable blast-resistant partition of claim 1, wherein: The limiting assembly (6) includes a limiting plate (61) fixedly sleeved on the outer periphery of an adjacent fixed shaft (32) near the bottom end, and several limiting holes opened on the outer periphery of the limiting plate (61). A T-shaped insert (62) is movably inserted into the inner cavity of an adjacent limiting hole. A threaded rod (63) is fixedly installed on the rear side of the T-shaped insert (62). A threaded tube (64) is threadedly connected to the outer periphery of the threaded rod (63). The rear end of the threaded tube (64) is rotatably connected to the rear side of the inner cavity of the groove. A driven bevel gear (65) is fixedly sleeved on the outer periphery near the front end. The top of the driven bevel gear (65) meshes with a driving bevel gear (66), and a vertical rod (67) is fixedly installed on the top of the driving bevel gear (66). The top of the vertical rod (67) is fixedly connected to the bottom of the inner cavity of the groove. A worm gear (68) is fixedly sleeved on the outer periphery of the vertical rod (67) near the top end. A worm (69) meshes on one side of the worm gear (68), and a rocker wheel is fixedly installed at the front end of the worm (69).

6. The demountably installable civil defense protection partition of claim 5, wherein: A rectangular block B (691) is rotatably connected to the outer periphery of the worm (69) near the middle position, and the top of the rectangular block B (691) is fixedly connected to the top of the groove cavity; a rectangular block A (671) is rotatably connected to the outer periphery of the vertical rod (67) near the middle position, and one side of the rectangular block A (671) is fixedly connected to the side wall of the groove cavity.

7. The demountably installable blast-resistant partition of claim 5, wherein: The T-shaped insert (62) has a limiting telescopic rod (621) fixedly installed on the rear side near both sides, and the rear side of the limiting telescopic rod (621) is fixedly connected to the rear side of the groove cavity.

Citation Information

Patent Citations

  • Civil air defense engineering sealing protective door

    CN219119097U