Explosion door for civil air defense engineering

Abstract

The utility model provides an explosion door for civil air defense engineering, which comprises a door frame and a door leaf rotatably mounted on the door frame, one side of the door leaf is provided with a locking component clamped with the door frame, and one side of the door leaf far away from the locking component is provided with a punching component connected with the door frame so as to enhance the stability of the door leaf when the door leaf is closed. When the door leaf is in a normal state, the door leaf is closed by connecting the locking assembly with the lock sleeve on the door frame, the rotary handle drives the gear to rotate to push the rack plate to move so as to control the lock rod to move and open or close the door leaf, operation is easy, and rapid operation is convenient. When the door leaf is impacted, the buffer plate is impacted to extrude the buffer spring and moves through the second slope block, the second slope block is connected with the first slope block through the inclined end face, so that the first slope block is pushed to move, the lock plates are movably inserted into second lock holes corresponding to the door frame, and the lock plates are distributed and are all in linkage with the buffer plate. And the impact resistance of the door leaf can be improved.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof door technology, specifically an explosion-proof door for civil defense projects. Background Technology

[0002] During the construction of civil defense projects, explosion-proof doors are installed to ensure their safety. When an explosion-proof door is subjected to an impact, the locking rod may deform, causing the explosion-proof door to be blown open. Even if the explosion-proof door is not blown open, it may become impossible to open due to the severely deformed locking rod. Therefore, there is a need for an explosion-proof door that can enhance the locking stability under the impact of an explosion. Utility Model Content

[0003] The technical problem solved by this utility model is to provide an explosion-proof door for civil defense projects, so as to solve the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved by the following technical solution: an explosion-proof door for civil defense projects, including a door frame and a door leaf rotatably installed on the door frame. One side of the door leaf is provided with a locking assembly that engages with the door frame, and the side of the door leaf away from the locking assembly is provided with a punching assembly that connects with the door frame, so as to enhance the stability of the door leaf when it is closed.

[0005] The punching assembly includes a buffer plate elastically disposed at the outer end of the door leaf and punching members distributed around the outer end of the door leaf. The punching members include a lock plate and a first ramp block integrally disposed on one side of the lock plate and a second ramp block mounted on the buffer plate. The first ramp block and the second ramp block are configured to cooperate to push the lock plate outward when the buffer plate is impacted. The door frame is provided with a second lock hole corresponding to the lock plate to enhance the stability of the door leaf when subjected to an explosive impact.

[0006] As a further embodiment of this utility model:

[0007] The locking assembly includes distributed locking rods and a pusher connected to the locking rods. A lock sleeve is provided on one side of the door frame corresponding to the locking rod, and a rotary handle is provided on the door leaf to drive the pusher to insert the locking rod into the first lock hole corresponding to the lock sleeve.

[0008] As a further embodiment of this utility model:

[0009] The door leaf is provided with a sliding sleeve corresponding to the locking rod. The locking rod is inserted into the sliding sleeve and slidably connected. The side of the locking rod away from the locking sleeve is rotatably connected to the pusher.

[0010] As a further embodiment of this utility model:

[0011] The pushing component includes a push rod and a push seat disposed at the outer end of the push rod. Connecting rods are rotatably mounted on both sides of the push seat and are rotatably connected to the locking rod through the connecting rods. The push rod is slidably mounted on the corresponding limiting sleeve of the door leaf, and a rack plate is fixedly provided on the side of the push rod away from the push seat.

[0012] As a further embodiment of this utility model:

[0013] The door leaf is equipped with a bracket corresponding to the handle, and a rotating shaft is mounted on the bracket. A gear is fixedly mounted on the rotating shaft, and the gear is connected to the rack plate for transmission. The outer end of the rotating shaft is fixedly connected to the handle so that the position of the push rod can be adjusted by rotating the handle, thereby driving the locking rods on both sides to move through the connecting rod, so as to realize the opening and closing of the door leaf.

[0014] As a further embodiment of this utility model:

[0015] Each side of the door leaf is provided with a buffer groove corresponding to the buffer plate. The buffer plate is slidably installed in the buffer groove, and the outer end of the door leaf is provided with an end plate to limit the buffer plate so as to prevent the buffer plate from falling out of the buffer groove.

[0016] As a further embodiment of this utility model:

[0017] The inclined end faces of the first ramp block and the second ramp block are fitted together to push the first ramp block to move through the inclined end faces. A reset spring is provided between the first ramp block and the end plate so that the reset spring pushes the buffer plate to be built into the buffer groove under normal conditions.

[0018] As a further embodiment of this utility model:

[0019] The buffer plate is elastically connected to the door leaf through several sets of distributed spring-loaded components. The door leaf has corresponding grooves for the spring-loaded components. Each spring-loaded component includes a limiting cylinder, a limiting rod slidably installed in the limiting cylinder, and a buffer spring sleeved on the outer end of the limiting cylinder. The side of the limiting rod away from the limiting cylinder is fixedly connected to the buffer plate. The limiting rod is connected to an anti-detachment block inside the limiting cylinder to prevent the limiting rod from detaching from the limiting cylinder and to ensure the stability of the buffer plate installation.

[0020] Compared with existing technologies, the advantages of this utility model are as follows: In the normal state of the door leaf, it is connected to the lock sleeve on the door frame through the locking assembly to close the door leaf. The handle drives the gear to rotate, which pushes the rack plate to move, thereby controlling the movement of the lock rod to open or close the door leaf. The operation is simple and convenient for quick operation. When the door leaf is impacted, the buffer plate is compressed by the impact and the buffer spring is compressed. It moves through the second ramp block. The second ramp block is connected to the first ramp block by its inclined end face, thereby pushing the first ramp block to move. The lock plate moves and is inserted into the corresponding second lock hole in the door frame. Several lock plates are distributed and are all linked to the buffer plate, which can improve the impact resistance of the door leaf. A return spring is provided between the first ramp block and the end plate. After the impact, the return spring pushes the buffer plate into the buffer groove, which facilitates the subsequent opening of the door leaf. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a partial cross-sectional view of the present invention.

[0023] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0024] The diagram shows the following components: 1. Door frame; 2. Door leaf; 3. Buffer plate; 11. Lock sleeve; 12. First lock hole; 13. Second lock hole; 21. Lock rod; 22. Sliding sleeve; 23. Push rod; 24. Push seat; 25. Connecting rod; 26. Limit sleeve; 27. Rack plate; 28. Rotary handle; 29. ​​Gear; 31. Lock plate; 32. First ramp block; 33. Second ramp block; 34. End plate; 35. Return spring; 36. Limit cylinder; 37. Limit rod; 38. Anti-detachment block; 39. Buffer spring. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0026] like Figures 1-3 As shown,

[0027] This embodiment provides an explosion-proof door for civil defense projects, including a door frame 1 and a door leaf 2 rotatably mounted on the door frame 1. One side of the door leaf 2 is provided with a locking assembly that engages with the door frame 1, and the side of the door leaf 2 away from the locking assembly is provided with a punching assembly that connects to the door frame 1, so as to enhance the stability of the door leaf 2 when closed.

[0028] The punching assembly includes a buffer plate 3 elastically disposed at the outer end of the door leaf 2 and punching members distributed around the outer end of the door leaf 2. The punching members include a lock plate 31 and a first ramp block 32 integrally disposed on one side of the lock plate 31 and a second ramp block 33 mounted on the buffer plate 3. The first ramp block 32 and the second ramp block 33 are configured to cooperate to push the lock plate 31 outward when the buffer plate 3 is impacted. The door frame 1 is provided with a second lock hole 13 corresponding to the lock plate 31 to enhance the stability of the door leaf 2 when subjected to an explosive impact.

[0029] In this embodiment, the locking assembly includes a locking rod 21 distributed in a row and a pusher connected to the locking rod 21. A locking sleeve 11 is provided on one side of the door frame 1 corresponding to the locking rod 21, and a rotary handle 28 is provided on the door leaf 2 to drive the pusher to insert the locking rod 21 into the first lock hole 12 corresponding to the locking sleeve 11.

[0030] The door leaf 2 is provided with a sliding sleeve 22 corresponding to the locking rod 21. The locking rod 21 is inserted into the sliding sleeve 22 and slidably connected. The side of the locking rod 21 away from the locking sleeve 11 is rotatably connected to the pusher.

[0031] The pushing component includes a push rod 23 and a push seat 24 disposed at the outer end of the push rod 23. Connecting rods 25 are rotatably mounted on both sides of the push seat 24 and are rotatably connected to the locking rod 21 through the connecting rods 25. The push rod 23 is slidably mounted on the limiting sleeve 26 corresponding to the door leaf 2. A rack plate 27 is fixedly provided on the side of the push rod 23 away from the push seat 24.

[0032] The door leaf 2 is equipped with a bracket corresponding to the handle 28. A rotating shaft is mounted on the bracket, and a gear 29 is fixedly mounted on the rotating shaft. The gear 29 is connected to the rack plate 27 for transmission. The outer end of the rotating shaft is fixedly connected to the handle 28 so that the position of the push rod 23 can be adjusted by rotating the handle 28, thereby driving the locking rods 21 on both sides to move through the connecting rod 25, so as to realize the opening and closing of the door leaf 2.

[0033] In this embodiment, a buffer groove is provided on one side of the door leaf 2 corresponding to the buffer plate 3. The buffer plate 3 is slidably installed in the buffer groove, and an end plate 34 is provided at the outer end of the door leaf 2 to limit the buffer plate 3 so as to prevent the buffer plate 3 from falling out of the buffer groove.

[0034] The inclined end faces of the first ramp block 32 and the second ramp block 33 are configured to move the first ramp block 32 by means of the inclined end faces. A return spring 35 is provided between the first ramp block 32 and the end plate 34 so that the return spring 35 pushes the buffer plate 3 to be built into the buffer groove in the normal state.

[0035] The buffer plate 3 is elastically connected to the door leaf 2 through several sets of distributed spring-loaded components. The door leaf 2 has corresponding grooves for the spring-loaded components. The spring-loaded components include a limiting cylinder 36, a limiting rod 37 slidably installed in the limiting cylinder 36, and a buffer spring 39 sleeved on the outer end of the limiting cylinder 36. The side of the limiting rod 37 away from the limiting cylinder 36 is fixedly connected to the buffer plate 3. The limiting rod 37 is connected to an anti-detachment block 38 inside the limiting cylinder 36 to prevent the limiting rod 37 from detaching from the limiting cylinder 36 and to ensure the stability of the buffer plate 3 during installation.

[0036] Specifically, in its normal state, door leaf 2 is connected to lock sleeve 11 on door frame 1 via locking assembly to close door leaf 2. Rotary handle 28 drives gear 29 to rotate, pushing rack plate 27 to move, thereby controlling the movement of lock rod 21 to open or close door leaf 2. Operation is simple and quick. When door leaf 2 is impacted, buffer plate 3 is compressed by the impact, squeezing buffer spring 39 and moving via second ramp block 33. Second ramp block 33 is connected to first ramp block 32 via its inclined end face, thus pushing first ramp block 32 to move. Lock plate 31 moves and inserts into the corresponding second lock hole 13 on door frame 1. Several lock plates 31 are distributed and all are linked to buffer plate 3, improving the impact resistance of door leaf 2. A return spring 35 is provided between first ramp block 32 and end plate 34. After impact, the return spring 35 pushes buffer plate 3 into the buffer groove, facilitating subsequent opening of door leaf 2.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely used to distinguish one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further restrictions, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A blast-proof door for civil defense projects, comprising a door frame and a door leaf rotatably mounted on the door frame, wherein one side of the door leaf is provided with a locking assembly that engages with the door frame, characterized in that: The side of the door leaf away from the locking assembly is provided with a punching assembly that connects to the door frame to enhance the stability of the door leaf when closed; The punching assembly includes a buffer plate elastically disposed at the outer end of the door leaf and punching members distributed around the outer end of the door leaf. The punching members include a lock plate and a first ramp block integrally disposed on one side of the lock plate and a second ramp block mounted on the buffer plate. The first ramp block and the second ramp block are configured to cooperate to push the lock plate outward when the buffer plate is impacted. The door frame is provided with a second lock hole corresponding to the lock plate.

2. The explosion-proof door for civil defense projects according to claim 1, characterized in that: The locking assembly includes distributed locking rods and a pusher connected to the locking rods. A lock sleeve is provided on one side of the door frame corresponding to the locking rod, and a rotary handle is provided on the door leaf to drive the pusher to insert the locking rod into the first lock hole corresponding to the lock sleeve.

3. The explosion-proof door for civil defense projects according to claim 2, characterized in that: The door leaf is provided with a sliding sleeve corresponding to the locking rod. The locking rod is inserted into the sliding sleeve and slidably connected. The side of the locking rod away from the locking sleeve is rotatably connected to the pusher.

4. The explosion-proof door for civil defense projects according to claim 3, characterized in that: The pushing component includes a push rod and a push seat disposed at the outer end of the push rod. Connecting rods are rotatably mounted on both sides of the push seat and are rotatably connected to the locking rod through the connecting rods. The push rod is slidably mounted on the corresponding limiting sleeve of the door leaf, and a rack plate is fixedly provided on the side of the push rod away from the push seat.

5. The explosion-proof door for civil defense projects according to claim 4, characterized in that: The door leaf is equipped with a bracket corresponding to the handle, and a rotating shaft is mounted on the bracket. A gear is fixedly mounted on the rotating shaft, and the gear is connected to the rack plate for transmission. The outer end of the rotating shaft is fixedly connected to the handle so that the position of the push rod can be adjusted by rotating the handle, thereby driving the locking rods on both sides to move through the connecting rod.

6. The explosion-proof door for civil defense projects according to claim 1, characterized in that: Each side of the door leaf is provided with a buffer groove corresponding to the buffer plate. The buffer plate is slidably installed in the buffer groove, and the outer end of the door leaf is provided with an end plate to limit the buffer plate so as to prevent the buffer plate from falling out of the buffer groove.

7. The explosion-proof door for civil defense projects according to claim 6, characterized in that: The inclined end faces of the first ramp block and the second ramp block are fitted together to push the first ramp block to move through the inclined end faces. A reset spring is provided between the first ramp block and the end plate so that the reset spring pushes the buffer plate to be built into the buffer groove under normal conditions.

8. The explosion-proof door for civil defense projects according to claim 7, characterized in that: The buffer plate is elastically connected to the door leaf through a number of distributed elastic components. The door leaf has corresponding grooves for the elastic components. The elastic component includes a limiting cylinder, a limiting rod slidably installed in the limiting cylinder, and a buffer spring sleeved on the outer end of the limiting cylinder. The side of the limiting rod away from the limiting cylinder is fixedly connected to the buffer plate. The limiting rod is connected to an anti-detachment block inside the limiting cylinder.

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