CN213775122U

CN213775122U - Explosion-proof ripples door leaf that lives

Info

Publication number: CN213775122U
Application number: CN202022427506.4U
Authority: CN
Inventors: 汪洋
Original assignee: Anhui Longhong Civil Air Defense Engineering Protection Equipment Co ltd
Current assignee: Anhui Longhong Civil Air Defense Engineering Protection Equipment Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-07-23
Anticipated expiration: 2030-10-26

Abstract

The application relates to an explosion-proof wave movable door leaf, which comprises a door leaf, a suspension plate and a fixed base arranged corresponding to the suspension plate, wherein the door leaf is provided with a vent hole, the vent hole is arranged corresponding to the suspension plate, one side of the fixed base, which is close to the door leaf, is fixedly connected with a connecting block, the door leaf is provided with a positioning groove, and the positioning groove is in inserting fit with the connecting block; a first sliding groove is formed in the side wall of the connecting block; the explosion-proof wave movable door leaf also comprises a fixing device, the fixing device comprises a first abutting block, a first spring and a second abutting block, the first abutting block is connected to the first sliding groove in a sliding mode, one end of the first spring is fixedly connected to one side of the first abutting block, and the other end of the first spring is fixedly connected to the inner side wall of the first sliding groove; the second abutting block is fixedly connected to the inner side wall of the positioning groove and abuts against the connecting block; the fixing device also comprises a pushing mechanism for pushing the first abutting block to slide. This application has the effect of being convenient for installation and dismantlement hanging plate.

Description

Explosion-proof ripples door leaf that lives

Technical Field

The application relates to the technical field of movable door leaves, in particular to an explosion-proof wave movable door leaf.

Background

The explosion wave proof valve is used as important protection equipment of civil air defense engineering, such as an air defense basement, and is usually arranged at a ventilation opening part, the front part of the explosion wave proof valve faces the outside of the engineering, and the rear part of the explosion wave proof valve is usually connected with a diffusion chamber or a diffusion box and is used for weakening or preventing impact waves from entering the inside of the engineering in wartime so as to ensure that the inside of the engineering does not exceed an allowable value and prevent personnel or equipment from being damaged.

The related art can refer to the chinese patent with the publication number CN209603794U, which discloses an anti-explosion wave valve capable of resisting negative pressure impact, comprising a door leaf with at least one ventilation hole, and a suspension plate arranged outside the door leaf, wherein the upper end of the suspension plate is hinged to the door leaf, the lower end is far away from the door leaf, the lower end of the suspension plate can completely cover the ventilation hole when being close to the door leaf, the inner side of the door leaf is further provided with a second suspension plate, the upper end of the second suspension plate is hinged to the door leaf, the lower end is far away from the door leaf, and the lower end of the second suspension plate can completely cover the ventilation hole when being close to the door leaf. The upper end of the suspension plate or the upper end of the second suspension plate are respectively hinged with the door leaf through at least one hinged support, each support comprises a fixed base fixed on the door leaf and a rotary connecting support, one end of the rotary connecting support is connected to the fixed base through a hinge shaft, and the other end of the rotary connecting support is fixedly connected to the upper end of the suspension plate or the upper end of the second suspension plate.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the hanging plate may need to be maintained and replaced in a long-time practical process, the fixing base is fixed on the door leaf by the scheme, and the hanging plate is inconvenient to maintain and replace after being detached.

SUMMERY OF THE UTILITY MODEL

In order to facilitate carrying out the dismouting to the hanger plate, this application provides an explosion-proof ripples door leaf alive.

The application provides a pair of explosion-proof ripples door leaf that lives adopts following technical scheme:

an explosion-proof wave-activated door leaf comprises a door leaf, a suspension plate and a fixed base arranged corresponding to the suspension plate, wherein the door leaf is provided with a vent hole, the vent hole is arranged corresponding to the suspension plate, one side of the fixed base, which is close to the door leaf, is fixedly connected with a connecting block, the door leaf is provided with a positioning groove, and the positioning groove is in inserting fit with the connecting block; a first sliding groove is formed in the side wall of the connecting block; the explosion-proof wave movable door leaf further comprises a fixing device, wherein the fixing device comprises a first abutting block, a first spring and a second abutting block, the first abutting block is connected to the first sliding groove in a sliding mode, one end of the first spring is fixedly connected to one side of the first abutting block, and the other end of the first spring is fixedly connected to the inner side wall of the first sliding groove; the second abutting block is fixedly connected to the inner side wall of the positioning groove and abutted against the connecting block; the fixing device further comprises a pushing mechanism for pushing the first abutting block to slide.

By adopting the technical scheme, in the process of inserting the connecting block into the positioning groove, the first abutting block is pushed to slide into the first sliding groove, so that the connecting block can be moved to be inserted into the positioning groove; after the connecting block is inserted into the positioning groove, under the action of the elastic force of the first spring, the first spring pushes the first abutting block to slide until the first abutting block abuts against the inner side wall of the positioning groove, and at the moment, one side of the first abutting block abuts against one side of the second abutting block, so that the connecting block is fixed in the positioning groove, and the purpose of conveniently installing the fixed base is achieved; when unable adjustment base was dismantled to needs, promote first butt piece through pushing mechanism and slide, get into first spout completely until first butt piece in to can remove the connecting block and break away from the constant head tank, and then reach the installation of being convenient for and dismantle unable adjustment base's purpose.

Preferably, a second chute is formed in the inner side wall of the positioning groove, and a first through hole is formed in the inner side wall of the second chute; the pushing mechanism comprises a pushing block and a moving block, the pushing block is connected to the second sliding groove in a sliding mode, and one side, close to the connecting block, of the pushing block is abutted to the first abutting block; the moving block is fixedly connected to one side of the pushing block and is connected to the first through hole in a sliding mode; the pushing mechanism further comprises a resetting component enabling the pushing block to reset.

Through adopting above-mentioned technical scheme, in order to facilitate promoting first butt piece and slide, drive the ejector pad through removing the movable block and remove, the ejector pad removes and promotes first butt piece and slides to reach the purpose of being convenient for promote first butt piece.

Preferably, the third spout has been seted up to the inside wall of second spout, reset assembly includes guide bar, sliding sleeve and second spring, the guide bar rigid coupling is in the inside wall of third spout, the sliding sleeve rigid coupling is in one side of ejector pad, sliding sleeve sliding connection is in the guide bar, the one end rigid coupling of second spring is in one side of sliding sleeve, and other end rigid coupling is in the inside wall of third spout.

By adopting the technical scheme, in the process that the push block pushes the first abutting block to move, the push block drives the sliding sleeve to move, and the second spring is compressed at the moment; when the pushing block is not acted by external force any more, the sliding sleeve pushes the sliding sleeve to move under the action of the elastic force of the second spring, and the sliding sleeve moves to drive the pushing block to move, so that the purpose of resetting the pushing block is achieved; through setting up the guide bar, be convenient for on the one hand to the ejector pad to lead, on the other hand reduces the second spring and is being compressed the possibility that the in-process shifts to other directions.

Preferably, the door leaf is fixedly connected with a positioning block, second through holes are formed in two ends of the positioning block respectively, the two second through holes are arranged corresponding to two ends of the first through hole, the moving block is connected with a bolt in a sliding mode, and the bolt penetrates through the moving block and is in plug-in fit with the second through holes.

Through adopting above-mentioned technical scheme, through setting up bolt and locating piece, be convenient for fix the ejector pad.

Preferably, one side of the first abutting block, which is far away from the fixed base, is provided with an inclined plane, one side of the second abutting block, which is close to the fixed base, is provided with an inclined plane, and the two inclined planes are matched.

Through adopting above-mentioned technical scheme, promoting the in-process of connecting block grafting constant head tank, the inclined plane of first butt piece contacts with the inclined plane of second butt piece for first butt piece contracts to first spout in, has reduced the degree of difficulty that connecting block and first butt piece inserted in the constant head tank.

Preferably, a rubber pad is fixedly connected to the door leaf around the vent hole, an inner cavity is formed in the rubber pad, and a plurality of groups of buffer assemblies used for buffering the suspension plate are installed in the inner cavity.

Through adopting above-mentioned technical scheme, through setting up the rubber pad, can alleviate the rigid contact between door leaf and the hanging plate.

Preferably, the inner side wall of the inner cavity is provided with a plurality of third through holes, the buffer assemblies and the third through holes are arranged in a one-to-one correspondence manner, and buffer holes are formed in the door leaf corresponding to the third through holes; the buffer assembly comprises a buffer rod, a buffer spring and a buffer plate, the buffer plate is fixedly connected with the inner side wall of one side of the door leaf away from the inner cavity, one end of the buffer rod is fixedly connected with one side of the buffer plate close to the door leaf, the buffer rod is connected with the third through hole and the buffer hole in a sliding mode, and the buffer spring is sleeved on the buffer rod.

By adopting the technical scheme, the buffer spring is arranged, so that the buffer effect is achieved when the suspension plate is in contact with the door leaf; by providing the buffer rod, the possibility of other directions of deviation when the second spring is compressed is reduced.

To sum up, this application includes following at least one explosion-proof ripples door leaf that lives beneficial technological effect:

1. in the process that the connecting block is inserted into the positioning groove, the first abutting block is pushed to slide into the first sliding groove, so that the connecting block can be moved to be inserted into the positioning groove; after the connecting block is inserted into the positioning groove, under the action of the elastic force of the first spring, the first spring pushes the first abutting block to slide until the first abutting block abuts against the inner side wall of the positioning groove, and at the moment, one side of the first abutting block abuts against one side of the second abutting block, so that the connecting block is fixed in the positioning groove, and the purpose of conveniently installing the fixed base is achieved; when the fixed base needs to be disassembled, the first abutting block is pushed by the pushing mechanism to slide until the first abutting block completely enters the first sliding groove, so that the connecting block can be moved to be separated from the positioning groove, and the purpose of facilitating the installation and the disassembly of the fixed base is achieved;

2. in order to facilitate pushing the first abutting block to slide, the pushing block is driven to move by moving the moving block, and the pushing block moves to push the first abutting block to slide, so that the purpose of facilitating pushing the first abutting block is achieved;

3. in the process that the pushing block pushes the first abutting block to move, the pushing block drives the sliding sleeve to move, and the second spring is compressed at the moment; when the pushing block is not acted by external force any more, the sliding sleeve pushes the sliding sleeve to move under the action of the elastic force of the second spring, and the sliding sleeve moves to drive the pushing block to move, so that the purpose of resetting the pushing block is achieved; through setting up the guide bar, be convenient for on the one hand to the ejector pad to lead, on the other hand reduces the second spring and is being compressed the possibility that the in-process shifts to other directions.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of the embodiment of the present application showing the structure of the fixing device;

FIG. 3 is a schematic structural diagram of a salient buffer component in the embodiment of the present application.

Description of reference numerals: 1. a door leaf; 11. a vent hole; 12. a suspension plate; 13. positioning a groove; 131. a second chute; 132. a first through hole; 133. a third chute; 14. a hinge assembly; 141. a support bracket; 142. rotating the bracket; 15. a limiting support; 2. a fixed base; 21. connecting blocks; 211. a first chute; 3. a fixing device; 31. a first abutment block; 32. a first spring; 33. a second abutment block; 34. a pushing mechanism; 341. a push block; 342. a moving block; 343. a reset assembly; 3431. a guide bar; 3432. a sliding sleeve; 3433. a second spring; 344. positioning blocks; 3441. a second through hole; 345. a bolt; 4. a rubber pad; 41. an inner cavity; 411. a third through hole; 42. a buffer assembly; 421. a buffer rod; 422. a buffer spring; 423. a buffer plate; 424. and a buffer hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses explosion-proof ripples door leaf alive, as shown in fig. 1, including door leaf 1, equidistant three ventilation hole 11 has been seted up on the door leaf 1, corresponds three ventilation hole 11 and is equipped with three hanging deck 12 on door leaf 1, and the upper end of three hanging deck 12 is articulated through two sets of hinge assemblies 14 with door leaf 1. Each group of hinge assemblies 14 includes a fixed base 2, a supporting bracket 141 and a rotating bracket 142, the fixed base 2 is detachably connected to the door leaf 1, one end of the supporting bracket 141 is fixedly connected to the fixed base 2, the other end of the supporting bracket 141 is hinged to the rotating bracket 142, and one end of the rotating bracket 142, which is far away from the supporting bracket 141, is fixedly connected to the upper end of the suspension plate 12. The outer side of the door leaf 1 is fixedly connected with a limiting support 15. When the suspension plate 12 is not impacted by shock waves, the lower end of the suspension plate 12 is far away from the door leaf 1, when the door leaf 1 is impacted by the shock waves, the suspension plate 12 rotates fast and is attached to the door leaf 1, the ventilation hole 11 is completely sealed, the shock waves are prevented from being diffused inwards, and the effect of preventing the shock waves from being impacted is achieved.

As shown in fig. 1 and fig. 2, in order to facilitate the installation and the disassembly of the fixing base 2, a connecting block 21 is fixedly connected to one side of the fixing base 2 close to the door leaf 1, the connecting block 21 is a rectangular block structure, a first sliding groove 211 with a rectangular opening is formed in the connecting block 21, and the first sliding groove 211 extends along the length direction of the connecting block 21. The door leaf 1 is provided with a positioning groove 13 with a rectangular opening corresponding to the connecting block 21, and the connecting block 21 is matched with the positioning groove 13 in an inserting manner. The explosion-proof movable door leaf further comprises a fixing device 3, the fixing device 3 comprises a first abutting block 31, a first spring 32, a second abutting block 33 and a pushing mechanism 34, the first abutting block 31 is connected to the first sliding groove 211 in a sliding mode along the length direction of the connecting block 21, and an inclined plane is arranged on one side, far away from the fixing base 2, of the first abutting block 31. The second abutting block 33 is fixedly connected to the inner side wall of the positioning groove 13, an inclined surface is arranged on one side, close to the fixing base 2, of the second abutting block 33, and the inclined surface of the first abutting block 31 is matched with the inclined surface of the second abutting block 33. The first spring 32 is located in the first sliding slot 211, one end of the first spring 32 is fixedly connected to one side of the first abutting block 31 far away from the second abutting block 33, and the other end of the first spring is fixedly connected to the inner side wall of the first sliding slot 211 far away from the second abutting block 33.

As shown in fig. 1 and 2, during the process of inserting the connecting block 21 into the positioning groove 13, the inclined surface of the first abutting block 31 contacts the inclined surface of the second abutting block 33, so that the first abutting block 31 is retracted into the first sliding groove 211, and the connecting block 21 can be moved to be inserted into the positioning groove 13; after the connecting block 21 is inserted into the positioning groove 13, under the elastic force of the first spring 32, the first spring 32 pushes the first abutting block 31 to slide until the first abutting block 31 abuts against the inner side wall of the positioning groove 13, and at this time, one side of the first abutting block 31 abuts against one side of the second abutting block 33, so that the connecting block 21 is fixed in the positioning groove 13, thereby achieving the purpose of facilitating the installation of the fixing base 2; when unable adjustment base 2 is dismantled to needs, promote first butt piece 31 through pushing mechanism 34 and slide, until first butt piece 31 gets into first spout 211 completely in to can remove connecting block 21 and break away from constant head tank 13, and then reach the purpose of being convenient for install and dismantle unable adjustment base 2.

As shown in fig. 1 and 2, in order to facilitate the sliding of the first abutting block 31, the side wall of the positioning groove 13 is provided with a second sliding groove 131 with a square opening, the second sliding groove 131 extends along the length direction of the connecting block 21, the inner side wall of the second sliding groove 131 is provided with a first through hole 132, the cross section of the first through hole 132 is rectangular, and two ends of the first through hole 132 are respectively communicated with the second sliding groove 131 and the outer side of the door leaf 1. The pushing mechanism 34 includes a pushing block 341, a moving block 342, and a reset component 343, the pushing block 341 is a rectangular block structure, the pushing block 341 is slidably connected to the second sliding groove 131, and one side of the pushing block 341 close to the connecting block 21 abuts against the first abutting block 31. The moving block 342 is a rectangular block structure, the moving block 342 is fixedly connected to one side of the pushing block 341, the moving block 342 is slidably connected to the first through hole 132, and one end of the moving block 342 is located at the outer side of the door leaf 1. The pushing block 341 is driven to move by moving the moving block 342, and the pushing block 341 moves to push the first abutting block 31 to slide, so as to achieve the purpose of conveniently pushing the first abutting block 31.

As shown in fig. 2, the inner side wall of the second sliding groove 131 on the side away from the moving block 342 is provided with a third sliding groove 133, and the opening of the third sliding groove 133 is rectangular. The resetting assembly 343 includes a guide rod 3431, a sliding sleeve 3432 and a second spring 3433, the guide rod 3431 is a round rod-shaped structure, the axial line direction of the guide rod 3431 is parallel to the length direction of the connecting block 21, and two ends of the guide rod 3431 are respectively and fixedly connected to two opposite inner side walls of the third sliding groove 133. The sliding sleeve 3432 is a rectangular block structure, the sliding sleeve 3432 is fixedly connected to the sidewall of the pushing block 341 away from the moving block 342, the sliding sleeve 3432 is sleeved on the guiding rod 3431, and the sliding sleeve 3432 is slidably connected to the guiding rod 3431. The second spring 3433 is disposed on the guiding rod 3431, and one end of the second spring 3433 is fixed to the sliding sleeve 3432 near the connecting block 21, and the other end is fixed to the inner side wall of the third sliding groove 133 near the connecting block 21. When the pushing block 341 pushes the first abutting block 31 to move, the pushing block 341 drives the sliding sleeve 3432 to move, and at this time, the second spring 3433 is compressed; when the external force is not applied to the pushing block 341 any more, the sliding sleeve 3432 pushes the sliding sleeve 3432 to move under the elastic force of the second spring 3433 by the second spring 3433, and the sliding sleeve 3432 moves to drive the pushing block 341, thereby achieving the purpose of resetting the pushing block 341; the guide rod 3431 is provided to facilitate the guide of the push block 341.

As shown in fig. 1 and 2, in order to facilitate moving out the two connection blocks 21 simultaneously, a positioning block 344 is fixedly connected to the door leaf 1 corresponding to the first through hole 132, the positioning block 344 is in a rectangular block structure, second through holes 3441 are respectively formed at two ends of the positioning block 344, the cross section of each second through hole 3441 is circular, and the two second through holes 3441 are disposed corresponding to two ends of the first through hole 132. The moving block 342 is slidably connected with a latch 345, and the latch 345 penetrates through the moving block 342 to be plugged and matched with the second through hole 3441. The push block 341 is conveniently fixed by arranging the bolt 345 and the positioning block 344, thereby facilitating the simultaneous movement of the two connecting blocks 21.

As shown in fig. 1 and 3, a rubber pad 4 is fixedly connected around the vent hole 11 on one side of the door leaf 1 close to the suspension plate 12, an inner cavity 41 is formed in the rubber pad 4, a plurality of groups of buffer assemblies 42 are installed in the inner cavity 41, each group of buffer assemblies 42 comprises a buffer plate 423, a buffer rod 421 and a buffer spring 422, the buffer plate 423 is of a circular plate-shaped structure, and the buffer plate 423 is fixedly connected to the inner cavity 41 and is far away from the inner side wall of one side of the door leaf 1. The buffer rod 421 is a round rod structure, and one end of the buffer rod 421 is fixedly connected to one side of the buffer plate 423 close to the door leaf 1. The buffer spring 422 is sleeved on the buffer rod 421, one end of the buffer spring 422 is fixedly connected to the inner side wall of the inner cavity 41 close to one side of the door leaf 1, and the other end of the buffer spring 422 is fixedly connected to one side of the buffer plate 423 close to the door leaf 1. A plurality of third through holes 411 have been seted up to the lateral wall that interior chamber 41 kept away from hanger plate 12, and third through hole 411 sets up with buffering pole 421 one-to-one, corresponds third through hole 411 and has seted up buffering hole 424 on door leaf 1, and buffering pole 421 and third through hole 411 and the hole 424 sliding connection that slowly punches. By arranging the buffer spring 422, the buffer effect is achieved when the suspension plate 12 is in contact with the door leaf 1; by providing the buffer rod 421, the possibility of the second spring 3433 being displaced in the other direction when compressed is reduced.

The implementation principle of an explosion-proof ripples door leaf of this application embodiment does: in the process of inserting the connecting block 21 into the positioning groove 13, the inclined surface of the first abutting block 31 is firstly contacted with the inclined surface of the second abutting block 33, so that the first abutting block 31 is contracted into the first sliding groove 211, and the connecting block 21 can be moved to be inserted into the positioning groove 13; after the connecting block 21 is inserted into the positioning groove 13, under the elastic force of the first spring 32, the first spring 32 pushes the first abutting block 31 to slide until the first abutting block 31 abuts against the inner side wall of the positioning groove 13, and at this time, one side of the first abutting block 31 abuts against one side of the second abutting block 33, so that the connecting block 21 is fixed in the positioning groove 13, thereby achieving the purpose of facilitating the installation of the fixing base 2; when the fixing base 2 needs to be detached, the moving block 342 is moved to drive the pushing block 341 to move, the pushing block 341 moves to push the first abutting block 31 to slide until the first abutting block 31 completely enters the first sliding groove 211, so that the movable connecting block 21 is separated from the positioning groove 13, and the purpose of facilitating the installation and detaching of the fixing base 2 is achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an explosion-proof ripples door leaf that lives, includes door leaf (1), hanger plate (12) and corresponds unable adjustment base (2) that hanger plate (12) set up, ventilation hole (11) have been seted up on door leaf (1), ventilation hole (11) correspond the setting with hanger plate (12), its characterized in that: a connecting block (21) is fixedly connected to one side, close to the door leaf (1), of the fixed base (2), a positioning groove (13) is formed in the door leaf (1), and the positioning groove (13) is in inserting fit with the connecting block (21); a first sliding groove (211) is formed in the side wall of the connecting block (21); the explosion-proof wave movable door leaf further comprises a fixing device (3), the fixing device (3) comprises a first abutting block (31), a first spring (32) and a second abutting block (33), the first abutting block (31) is connected to the first sliding groove (211) in a sliding mode, one end of the first spring (32) is fixedly connected to one side of the first abutting block (31), and the other end of the first spring is fixedly connected to the inner side wall of the first sliding groove (211); the second abutting block (33) is fixedly connected to the inner side wall of the positioning groove (13), and the second abutting block (33) abuts against the connecting block (21); the fixing device (3) further comprises a pushing mechanism (34) for pushing the first abutting block (31) to slide.

2. An explosion wave proof door leaf as claimed in claim 1 wherein: a second sliding chute (131) is formed in the inner side wall of the positioning groove (13), and a first through hole (132) is formed in the inner side wall of the second sliding chute (131); the pushing mechanism (34) comprises a pushing block (341) and a moving block (342), the pushing block (341) is connected to the second sliding chute (131) in a sliding mode, and one side, close to the connecting block (21), of the pushing block (341) is abutted to the first abutting block (31); the moving block (342) is fixedly connected to one side of the pushing block (341), and the moving block (342) is connected to the first through hole (132) in a sliding mode; the pushing mechanism (34) further comprises a resetting component (343) which resets the pushing block (341).

3. An explosion wave proof door leaf as claimed in claim 2 wherein: third spout (133) have been seted up to the inside wall of second spout (131), subassembly (343) that resets includes guide bar (3431), sliding sleeve (3432) and second spring (3433), guide bar (3431) rigid coupling in the inside wall of third spout (133), sliding sleeve (3432) rigid coupling in one side of ejector pad (341), sliding sleeve (3432) sliding connection in guide bar (3431), the one end rigid coupling of second spring (3433) in one side of sliding sleeve (3432), the other end rigid coupling in the inside wall of third spout (133).

4. An explosion wave proof door leaf as claimed in claim 3 wherein: the door leaf (1) is fixedly connected with a positioning block (344), two ends of the positioning block (344) are respectively provided with a second through hole (3441), the two second through holes (3441) are arranged corresponding to two ends of the first through hole (132), the moving block (342) is slidably connected with a bolt (3421), and the bolt (3421) penetrates through the moving block (342) and is in plug-in fit with the second through holes (3441).

5. An explosion wave proof door leaf as claimed in claim 4 wherein: one side of the first abutting block (31) far away from the fixed base (2) is provided with an inclined plane, one side of the second abutting block (33) close to the fixed base (2) is provided with an inclined plane, and the two inclined planes are matched.

6. An explosion wave proof door leaf as claimed in claim 1 wherein: the door leaf (1) is fixedly connected with a rubber pad (4) around the vent hole (11), an inner cavity (41) is formed in the rubber pad (4), and a plurality of groups of buffer assemblies (42) used for buffering the suspension plate (12) are installed in the inner cavity (41).

7. An explosion wave proof door leaf as claimed in claim 6 wherein: a plurality of third through holes (411) are formed in the inner side wall of the inner cavity (41), the buffer components (42) and the third through holes (411) are arranged in a one-to-one correspondence mode, and buffer holes (424) are formed in the door leaf (1) corresponding to the third through holes (411); buffer unit (42) are including buffering pole (421), buffer spring (422) and buffer board (423), the inside wall of door leaf (1) one side is kept away from in inner chamber (41) to buffer board (423) rigid coupling, the one end rigid coupling of buffer pole (421) is close to one side of door leaf (1) in buffer board (423), buffer pole (421) and third through-hole (411) and gentle (424) sliding connection that punches a hole, buffer spring (422) cover is established on buffer pole (421).