CN211647865U - People's air-proof airtight door - Google Patents

Abstract

The utility model discloses a people's air-proof airtight door belongs to engineering blast resistance and strikes shock insulation technical field. The problem of among the prior art ordinary light door plant's shock resistance limited, when receiving the impact, the door plant damages easily, influences life, hardly satisfies the resistance demand to the guard gate at present is solved. The door comprises a door frame and a door leaf, wherein an upper hinge page and a lower hinge page are respectively arranged on one side of the door frame and one side of the door leaf, and are respectively fixedly connected with the door frame and the door leaf through bolts; one side of the door leaf is connected to the door frame through an upper hinge leaf and a lower hinge leaf, the door leaf is locked or unlocked with the door frame through locking, the side walls around the door frame are provided with obliquely arranged anchoring hooks, the end parts of the anchoring hooks are provided with hooks, each side wall of the door frame is provided with an upper row of anchoring hooks and a lower row of anchoring hooks, and the hooks of the two rows of anchoring hooks are arranged oppositely.

Description

People's air-proof airtight door

Technical Field

The utility model relates to an engineering explosion-proof impact shock insulation technical field, more specifically the saying so relates to a people's air-proof airtight door.

Background

The civil air defense door is one of the very important protective facilities at the entrance and exit of the civil air defense engineering. The civil air defense door leaf basically adopts a steel structure and a reinforced concrete structure, and due to the characteristic of the civil air defense door, the door leaf is thick and heavy, and the weight is up to several tons. Serious problems brought by the defect of 'thickness, big size and heaviness' of the civil air defense door are more and more obvious, for example, the construction and installation are very inconvenient, the self-weight deformation is very easy to occur in the using process, the opening and closing of the door are inconvenient, the sealing is not tight, the service life is greatly reduced, even the operation is invalid in critical time, and serious consequences are caused; in addition, the device brings great troubles to daily maintenance, thereby greatly increasing the use and maintenance cost.

The common light door plate has limited impact resistance, is easy to damage when being impacted, influences the service life, and is difficult to meet the resistance requirement of the protective door at present, so that the development of a novel civil air-proof airtight door becomes necessary and urgent.

SUMMERY OF THE UTILITY MODEL

In order to solve the shock resistance of ordinary light door plant among the prior art limited, when receiving the impact, the door plant damages easily, influences life, hardly satisfies the problem to the resistance demand of guard gate at present, the utility model provides a people's air-proof airtight door.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a civil air-proof airtight door comprises a door frame and a door leaf, wherein an upper hinge page and a lower hinge page are respectively arranged on one side of the door frame and one side of the door leaf, and are respectively fixedly connected with the door frame and the door leaf through bolts; one side of the door leaf is connected to the door frame through an upper hinge leaf and a lower hinge leaf, the door leaf is locked or unlocked with the door frame through locking, the side walls around the door frame are provided with obliquely arranged anchoring hooks, the end parts of the anchoring hooks are provided with hooks, each side wall of the door frame is provided with an upper row of anchoring hooks and a lower row of anchoring hooks, and the hooks of the two rows of anchoring hooks are arranged oppositely.

Further, the door leaf comprises an upper frame with a U-shaped cross section, a lower frame with a U-shaped cross section, an outer door panel assembly, an inner door panel assembly and a plurality of elastic buffering devices, the upper frame and the lower frame are oppositely arranged to form an installation chute, the inner door panel assembly is fixedly installed on one side in the installation chute, the outer door panel assembly is movably installed on the other side in the installation chute, the elastic buffering devices are installed between the inner door panel assembly and the outer door panel assembly, and the inner door panel assembly is attached to the other side in the installation chute through the elastic buffering devices.

Furthermore, the outer door plate assembly comprises a plurality of outer door plate vertical beams and outer door plate cross beams which are arranged in a transverse-vertical alternating manner, wherein the top ends of the outer door plate vertical beams are attached to the side wall of the upper frame, and a gap is formed between the top ends of the outer door plate vertical beams and the top of the upper frame; the bottom end of the outer door plate vertical beam is attached to the side wall of the lower frame, and a gap is formed between the bottom end of the outer door plate vertical beam and the bottom of the lower frame. The arrangement of the gaps between the top ends of the outer door plate vertical beams and the gaps between the bottom ends of the outer door plate vertical beams and the upper frame and the lower frame ensure that when the outer door plate assembly is impacted by shock waves, the top ends of the outer door plate vertical beams or the outer door plate cross beams cannot be subjected to the friction force of the upper frame and the lower frame when moving towards the inner door plate assembly, so that the elastic buffer device can be extruded to absorb energy conveniently; and secondly, when the outer door panel assembly is impacted by shock waves and moves towards the inner door panel assembly, the deformation causes the contact between the top end of the outer door panel vertical beam or the top end of the outer door panel cross beam and the upper frame or the contact between the bottom end of the outer door panel vertical beam or the bottom end of the outer door panel cross beam and the lower frame, so that the outer door panel assembly is prevented from continuously moving towards the inner door panel assembly to extrude the elastic buffer device to absorb energy.

Furthermore, the positions where the top end of the outer door plate vertical beam is attached to the side wall of the upper frame and the positions where the bottom end of the outer door plate vertical beam is attached to the side wall of the lower frame are provided with a primary buffer device for fixing the top end of the outer door plate vertical beam, the side wall of the upper frame and the bottom end of the outer door plate vertical beam to the side wall of the lower frame. One-level buffer's setting is that there is an innovation point of this patent, has set up one-level buffer, like this when outer door panel assembly receives external shock wave effect, outer door panel assembly takes the lead and contacts with the shock wave, and one-level buffer takes place the buffering shock attenuation at first under the shock wave effect, and when reaching the certain degree, the phenomenon of rupture appears, has played elementary cushioning effect to the shock wave. And then the outer door plate assembly continues to move towards the inner door plate assembly, and at the moment, the elastic buffer device is slowly deformed due to the extrusion of the outer door plate assembly, so that the impact acting force on the outer door plate assembly is absorbed, and finally the absorption is completed.

Further, the first-stage buffer device is a fastening screw. One-level buffer sets up to fastening screw, mainly wants to play the effect of a buffering, can not be with outer door panel subassembly and go up the too firm of fixing between frame and the underframe, prevents when outer door panel subassembly receives external shock wave effect, and one-level buffer disappearance rupture phenomenon leads to frame or underframe to warp, and then leads to the whole unstability of guard gate or even inefficacy.

Furthermore, the inner door panel assembly comprises a plurality of inner door panel vertical beams and inner door panel cross beams which are arranged in a transverse-vertical alternating manner, wherein the top ends of the inner door panel vertical beams are attached to the side wall of the upper frame, and a gap is formed between the top ends of the inner door panel vertical beams and the top of the upper frame; the bottom end of the inner door plate vertical beam is attached to the side wall of the lower frame, and a gap is formed between the bottom end of the inner door plate vertical beam and the bottom of the lower frame.

Furthermore, the top end of the inner door plate vertical beam is fixed on the side wall of the upper frame, and the bottom end of the outer door plate vertical beam is fixed on the side wall of the lower frame.

Furthermore, the outer door plate vertical beam, the outer door plate cross beam, the inner door plate vertical beam and the inner door plate cross beam are all hollow channel steel. The rigidity is strong, and the framework is stable. Meanwhile, the self weight can be reduced, and the installation and the transportation are convenient.

Furthermore, a first groove for fixing the elastic buffer device is formed in the intersection point of the outer door plate vertical beam and the outer door plate cross beam, a second groove for fixing the elastic buffer device is formed in the intersection point of the inner door plate vertical beam and the inner door plate cross beam, one end of the elastic buffer device is installed in the first groove, and the other end of the elastic buffer device is installed in the second groove. Is convenient for installation, fixation and replacement.

Further, the elastic buffer device is an annular spring. The structure of the annular spring is that a plurality of pairs of outer rings with inner conical surfaces are matched with inner rings with outer conical surfaces, when the annular spring bears axial acting force, the generated normal acting force acts on the contact surfaces of the inner and outer rings, the inner and outer rings slide relatively, the diameter of the inner ring is reduced under the influence of compression acting force, and the diameter of the outer ring is enlarged under the influence of tensile acting force. The deformation effect of the inner ring and the outer ring generated by the relative sliding of the annular spring under the action of external force is incomparable with other springs. I.e. axial forces can be relieved. Therefore, the annular spring is arranged between the inner door panel assembly and the outer door panel assembly, so that the space size is reduced, and larger shock wave energy can be absorbed.

Furthermore, an upper bearing plate is installed on the outer side of the top of the upper frame, and a lower bearing plate is installed on the outer side of the bottom of the lower frame. Go up bearing plate and lower bearing plate and be used for with the utility model discloses a protective airtight door of double buffering device installs in civil air defense engineering exit.

Furthermore, a sealing strip is arranged between the door frame and the door leaf, an annular clamping groove is formed in the position, close to the outer contour of the door leaf, of one side, opposite to the door leaf, of the door frame, the annular clamping groove is formed by a first pressure bearing strip arranged horizontally, a second pressure bearing strip arranged obliquely and the door frame, the end, connected with the top of the door frame, of the second pressure bearing strip is a low end, and the sealing strip is arranged in the annular clamping groove. The clamping groove of the fixed sealing strip is arranged into an annular clamping groove, so that when the door opening fan is prevented from being opened, the sealing strip drops out, the sealing strip is installed, the protective sealing effect between the door opening fan and the door frame can be realized, and the external toxic gas is effectively prevented from entering the room.

Furthermore, the door leaf is provided with an annular embedded pressing strip at a position opposite to the sealing strip, and the embedded pressing strip is embedded into the sealing strip when the door leaf is closed with the door frame. So that the protection and sealing effect between the door leaf and the door frame is better.

Compared with the prior art, the utility model beneficial effect who has is:

1. when the outer door panel assembly is subjected to explosion shock waves generated by the outside, the outer door panel assembly is stressed to move towards the inner door panel assembly, and the outer door panel assembly is movably connected with the side wall of the mounting chute formed by the upper frame and the lower frame, so that the outer door panel assembly cannot drive the side walls of the upper frame and the lower frame to move together when moving towards the inner door panel assembly after being stressed, and the upper frame and the lower frame cannot deform; and outer door plant subassembly atress back can extrude interior door plant subassembly and the elastic buffer between the outer door plant subassembly when removing to interior door plant subassembly direction, carries out the energy-absorbing to the shock wave through the compound mode that a plurality of elastic buffer and outer door plant subassembly self structure warp, and compares in solid reinforced concrete structure, effectively reduces dead weight, transportation and simple to operate. The problem of ordinary light door plant's shock resistance limited, when receiving the impact, the door plant damages easily, influences life, hardly satisfies the resistance demand to the guard gate at present is solved.

2. The arrangement of the gaps between the top end of the outer door plate vertical beam and the bottom end of the outer door plate vertical beam as well as the upper frame and the lower frame ensures that when the outer door plate assembly is impacted by shock waves, the top end of the outer door plate vertical beam or the top end of the outer door plate cross beam cannot be subjected to the friction force of the upper frame and the lower frame when moving towards the direction of the inner door plate assembly, so that the elastic buffer device can be extruded to absorb energy conveniently; and secondly, when the outer door panel assembly is impacted by shock waves and moves towards the inner door panel assembly, the deformation causes the contact between the top end of the outer door panel vertical beam or the top end of the outer door panel cross beam and the upper frame or the contact between the bottom end of the outer door panel vertical beam or the bottom end of the outer door panel cross beam and the lower frame, so that the outer door panel assembly is prevented from continuously moving towards the inner door panel assembly to extrude the elastic buffer device to absorb energy.

3. The utility model discloses an one-level buffer's setting is that there is an innovation point of this patent, has set up one-level buffer, like this when outer door panel assembly receives external shock wave effect, outer door panel assembly contacts with the shock wave earlier, and one-level buffer takes place the buffering shock attenuation at first under the shock wave effect, when reaching the certain degree, and the phenomenon of rupture appears, has played elementary cushioning effect to the shock wave. And then the outer door plate assembly continues to move towards the inner door plate assembly, and at the moment, the elastic buffer device is slowly deformed due to the extrusion of the outer door plate assembly, so that the impact acting force on the outer door plate assembly is absorbed, and finally the absorption is completed.

4. The utility model discloses a draw-in groove of fixed seal strip sets up annular draw-in groove and prevents to open the door when the fan opens, and the sealing strip drops out, and the airtight effect of protection between door leaf and the door frame can be realized to the installation sealing strip, prevents effectively that external poison gas from getting into indoorly.

5. The utility model discloses be equipped with the anchor hook that the slope set up on the lateral wall all around of door frame, the tip of anchor hook is equipped with the crotch, and is equipped with two rows of anchor hooks from top to bottom on every lateral wall of door frame, and the crotch of two rows of anchor hooks sets up relatively. The anchoring hook with the structure can firmly fix the door frame when being embedded in a wall body, so that the door leaf cannot break the door frame when being impacted.

Drawings

Fig. 1 is a schematic view of a door leaf of a civil air-proof airtight door of the present invention;

FIG. 2 is a cross-sectional view C-C of FIG. 1;

FIG. 3 is an enlarged partial schematic view of A in FIG. 2;

FIG. 4 is an enlarged partial schematic view of B in FIG. 2;

fig. 5 is a schematic structural view of an outer door plate assembly of a civil air-proof airtight door of the present invention;

fig. 6 is a schematic structural view of an inner door plate assembly of a civil air-proof airtight door of the present invention;

fig. 7 is a schematic structural view of a civil air-proof airtight door of the present invention;

fig. 8 is a D-D cross-sectional view of a civil air-tight door of the present invention;

fig. 9 is a partially enlarged schematic view of F in fig. 8.

The labels in the figure are: 1-upper frame, 2-lower frame, 3-outer door panel assembly, 4-inner door panel assembly, 5-primary buffer device, 6-upper bearing plate, 7-elastic buffer device, 8-first groove, 9-lower bearing plate, 10-outer door panel beam, 11-outer door panel vertical beam, 12-inner door panel beam, 13-inner door panel vertical beam, 14-second groove, 15-door frame, 16-door leaf, 17-anchoring hook, 18-latch, 19-upper hinge leaf, 20-lower hinge leaf, 21-first bearing strip, 22-sealing strip, 23-embedded strip and 24-second bearing strip.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

as shown in fig. 7, a civil air-proof airtight door comprises a door frame 15 and a door leaf 16, wherein an upper hinge 19 and a lower hinge 20 are respectively arranged on one side of the door frame 15 and one side of the door leaf 16, and the upper hinge 19 and the lower hinge 20 are respectively fixedly connected with the door frame 15 and the door leaf 16 through bolts; one side of a door leaf 16 is connected to a door frame 15 through an upper hinge 19 and a lower hinge 20 in a shaft mode, the door leaf 16 is locked or unlocked with the door frame 15 through a lock 18, anchoring hooks 17 which are obliquely arranged are arranged on the peripheral side walls of the door frame 15, hooks are arranged at the end portions of the anchoring hooks 17, an upper row and a lower row of anchoring hooks 17 are arranged on each side wall of the door frame 15, and the hooks of the two rows of anchoring hooks 17 are arranged oppositely.

The anchoring hook 17 of the door frame 15 structure can firmly fix the door frame 15 when being pre-embedded in a wall body, so that the door leaf 16 cannot break the door frame 15 when being impacted. The stability is improved.

Meanwhile, the door frame 15 of the embodiment is composed of a door frame 15 upper cross beam, a door frame 15 lower cross beam, a door frame 15 left longitudinal beam and a door frame 15 right longitudinal beam, the anchoring hooks 17 are respectively arranged on the door frame 15 upper cross beam, the door frame 15 lower cross beam, the door frame 15 left longitudinal beam and the door frame 15 right longitudinal beam, an included angle between the optimal inclination angle and the cross beam of the door frame 15 at the optimal inclination angle is 45 degrees, and the cross beams, the longitudinal beams, the anchoring hooks 17 and other components on the door frame 15 are all connected in a welding mode.

As shown in fig. 8 and 9, in the present embodiment, a sealing strip 22 is disposed between the door frame 15 and the door leaf 16, an annular clamping groove is disposed at a position close to an outer contour of the door leaf 16 on a side of the door frame 15 opposite to the door leaf 16, the annular clamping groove is formed by a first pressure-bearing strip 21 disposed horizontally, a second pressure-bearing strip 24 disposed obliquely, and the door frame 15, an end of the second pressure-bearing strip 24 connected to the top of the door frame 15 is a lower end, and the sealing strip 22 is disposed in the annular clamping groove. The clamping groove of the fixed sealing strip 22 is arranged into an annular clamping groove, so that when the door leaf 16 is prevented from being opened, the sealing strip 22 drops out, the sealing strip 22 is installed, the protective sealing effect between the door leaf 16 and the door frame 15 can be realized, and the external toxic gas is effectively prevented from entering the room.

Preferably, the door leaf 16 is provided with an annular embedding strip 23 at a position opposite to the sealing strip 22, and when the door leaf 16 is closed with the door frame 15, the embedding strip 23 is embedded in the sealing strip 22. So that the protective sealing action between the door leaf 16 and the door frame 15 is better.

As shown in fig. 1 and 2, the door leaf 16 includes an upper frame 1 with a U-shaped cross section, a lower frame 2 with a U-shaped cross section, an outer door panel assembly 3, an inner door panel assembly 4, and a plurality of elastic buffering devices 7, wherein the upper frame 1 and the lower frame 2 are oppositely disposed to form an installation chute, the inner door panel assembly 4 is fixedly installed at one side in the installation chute, the outer door panel assembly 3 is movably installed at the other side in the installation chute, as shown in fig. 3 and 4, the upper frame 1 and the lower frame 2 only wrap the outer door panel assembly 3 and the top and bottom of the inner door panel assembly 4, the elastic buffering devices 7 are installed between the inner door panel assembly 4 and the outer door panel assembly 3, and the inner door panel assembly 4 is attached to the other side in the installation chute through the elastic buffering devices.

As shown in fig. 5, in this embodiment, the outer door panel assembly 3 includes a plurality of outer door panel vertical beams 11 and outer door panel cross beams 10 arranged in a horizontal-vertical manner, wherein the top end of each outer door panel vertical beam 11 is attached to the side wall of the upper frame 1, and a gap is formed between the top end of each outer door panel vertical beam and the top of the upper frame 1; the bottom end of the outer door panel vertical beam 11 is attached to the side wall of the lower frame 2, and a gap is formed between the bottom end of the outer door panel vertical beam and the bottom of the lower frame 2. In practical use, the outer door panel vertical beams 11 and the outer door panel cross beams 10 are also wrapped by a layer of skin.

As shown in fig. 6, in this embodiment, the inner door panel assembly 4 includes a plurality of inner door panel vertical beams 13 and inner door panel cross beams 12 arranged horizontally and vertically at intervals, wherein the top ends of the inner door panel vertical beams 13 are attached to the side walls of the upper frame 1, and a gap is formed between the top ends of the inner door panel vertical beams and the top of the upper frame 1; the bottom end of the inner door panel vertical beam 13 is attached to the side wall of the lower frame 2, and a gap is formed between the bottom end of the inner door panel vertical beam and the bottom of the lower frame 2. In practical use, the inner door panel vertical beams 13 and the inner door panel cross beams 12 are also covered by a layer of skin.

In this embodiment, the top ends of the inner door panel vertical beams 13 are welded to the side walls of the upper frame 1, and the bottom ends of the outer door panel vertical beams 11 are welded to the side walls of the lower frame 2.

In this implementation, outer door panel vertical beam 11, outer door panel crossbeam 10, interior door panel vertical beam 13 and interior door panel crossbeam 12 are the hollow 3mm thick Q235 channel-section steel, and the welding seam between outer door panel vertical beam 11 and the outer door panel crossbeam 10 is all-welded, and the welding seam height is 4mm, and the rigidity is strong, and the framework is stable. Meanwhile, the self weight can be reduced, and the installation and the transportation are convenient.

A first groove 8 for fixing the elastic buffer device 7 is arranged at the intersection of the outer door panel vertical beam 11 and the outer door panel cross beam 10, a second groove 14 for fixing the elastic buffer device 7 is arranged at the intersection of the inner door panel vertical beam 13 and the inner door panel cross beam 12, one end of the elastic buffer device 7 is installed in the first groove 8, and the other end of the elastic buffer device 7 is installed in the second groove 14. Is convenient for installation, fixation and replacement.

In this embodiment, the elastic buffer 7 is a ring spring. The structure of the annular spring is that a plurality of pairs of outer rings with inner conical surfaces are matched with inner rings with outer conical surfaces, when the annular spring bears axial acting force, the generated normal acting force acts on the contact surfaces of the inner and outer rings, the inner and outer rings slide relatively, the diameter of the inner ring is reduced under the influence of compression acting force, and the diameter of the outer ring is enlarged under the influence of tensile acting force. The deformation effect of the inner ring and the outer ring generated by the relative sliding of the annular spring under the action of external force is incomparable with other springs. I.e. axial forces can be relieved. Therefore, the annular spring is arranged between the inner door panel assembly 4 and the outer door panel assembly 3, so that the space size is reduced, and the larger shock wave energy can be absorbed.

For practical installation, an upper bearing plate 6 is installed on the top outer side of the upper frame 1, and a lower bearing plate 9 is installed on the bottom outer side of the lower frame 2. Go up bearing plate 6 and lower bearing plate 9 and be used for with the utility model discloses a protective airtight door of double buffering device installs in civil air defense engineering exit.

The utility model discloses a protective airtight door with double buffer when the installation, with outer door plant subassembly 3 towards external setting, when outer door plant subassembly 3 received the external world and produce the explosion shock wave, can the atress to inside door plant subassembly 4 direction removal, because be swing joint between the lateral wall of the installation spout that outer door plant subassembly 3 and last frame 1 and underframe 2 constitute, so when 4 directions of inside door plant subassembly move after outer door plant subassembly 3 atress, the lateral wall that can not drive frame 1 and underframe 2 moves together, just so can not lead to frame 1 and underframe 2 to warp.

And outer door plant subassembly 3 atress back can extrude interior door plant subassembly 4 and the elastic buffer 7 between the outer door plant subassembly 3 when moving to interior door plant subassembly 4 direction, carries out the energy-absorbing to the shock wave through the compound mode of a plurality of elastic buffer 7 and outer door plant subassembly 3 self structural deformation, and compares in solid reinforced concrete structure, effectively reduces the dead weight, transportation and simple to operate. The problem of ordinary light door plant's shock resistance limited, when receiving the impact, the door plant damages easily, influences life, hardly satisfies the resistance demand to the guard gate at present is solved.

The arrangement of the gaps between the top ends of the outer door panel vertical beams 11 and the gaps between the bottom ends of the outer door panel vertical beams 11 and the upper frame 1 and the lower frame 2 ensures that when the outer door panel assembly 3 is impacted by shock waves, the top ends of the outer door panel vertical beams 11 or the outer door panel cross beams 10 cannot be subjected to the friction force of the upper frame 1 and the lower frame 2 when moving towards the inner door panel assembly 4, so that the elastic buffer device 7 can be extruded to absorb energy conveniently; secondly, when the outer door panel assembly 3 is impacted by shock waves and moves towards the inner door panel assembly 4, the deformation causes the contact between the top end of the outer door panel vertical beam 11 or the top end of the outer door panel cross beam 10 and the upper frame 1 or the contact between the bottom end of the outer door panel vertical beam 11 or the bottom end of the outer door panel cross beam 10 and the lower frame 2, and the outer door panel assembly 3 is prevented from continuing to move towards the inner door panel assembly 4 to extrude the elastic buffer device 7 to absorb energy.

Example 2:

as shown in fig. 3 and 4, the present embodiment is further optimized based on embodiment 1, and the present embodiment focuses on the improvement of embodiment 1, and the same points are not described again, in the present embodiment, the positions where the top end of the outer door panel vertical beam 11 and the side wall of the upper frame 1 are attached and the positions where the bottom end of the outer door panel vertical beam 11 and the side wall of the lower frame 2 are attached are both provided with the primary buffer device 5 for fixing the top end of the outer door panel vertical beam 11 and the side wall of the upper frame 1 and the bottom end of the outer door panel vertical beam 11 and the side wall of the lower frame 2. One-level buffer 5's setting is that there is an innovation point of this patent, has set up one-level buffer 5, and like this when outer door plant subassembly 3 receives external shock wave to act on, outer door plant subassembly 3 takes the lead to contact with the shock wave, and one-level buffer 5 takes place the buffering shock attenuation at first under the shock wave effect, when reaching the certain degree, and the phenomenon of rupture appears, has played elementary cushioning effect to the shock wave. And then the outer door panel component 3 continues to move towards the inner door panel component 4, at the moment, the elastic buffer device 7 slowly deforms due to the extrusion of the outer door panel component 3, the impact acting force on the outer door panel component 3 is absorbed, and the absorption is finally completed.

Preferably, the primary buffer device 5 is a fastening screw. One-level buffer 5 sets up to fastening screw, mainly wants to play the effect of a buffering, can not be with outer door panel subassembly 3 and go up the too firm of fixing between frame 1 and the underframe 2, prevents when outer door panel subassembly 3 receives external shock wave effect, and one-level buffer 5 disappearance rupture phenomenon leads to frame 1 or underframe 2 to warp, and then leads to the whole unstability of guard gate or even inefficacy.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a people's air-proof airtight door which characterized in that: the door comprises a door frame (15) and a door leaf (16), wherein an upper hinge leaf (19) and a lower hinge leaf (20) are respectively arranged on one side of the door frame (15) and one side of the door leaf (16), and the upper hinge leaf (19) and the lower hinge leaf (20) are respectively fixedly connected with the door frame (15) and the door leaf (16) through bolts; one side of a door leaf (16) is connected to a door frame (15) through an upper hinge leaf (19) and a lower hinge leaf (20) in a shaft mode, the door leaf (16) is locked or unlocked with the door frame (15) through a lock (18), anchoring hooks (17) which are obliquely arranged are arranged on the peripheral side wall of the door frame (15), hooks are arranged at the end portions of the anchoring hooks, an upper row of anchoring hooks (17) and a lower row of anchoring hooks (17) are arranged on each side wall of the door frame (15), and the hooks of the two rows of anchoring hooks (17) are arranged oppositely.

2. A people air-tight door according to claim 1, characterized in that: the door leaf comprises an upper frame (1) with a U-shaped cross section, a lower frame (2) with a U-shaped cross section, an outer door panel assembly (3), an inner door panel assembly (4) and a plurality of elastic buffering devices (7), wherein the upper frame (1) and the lower frame (2) are oppositely arranged to form an installation chute, the inner door panel assembly (4) is fixedly arranged on one side in the installation chute, the outer door panel assembly (3) is movably arranged on the other side in the installation chute, the elastic buffering devices (7) are arranged between the inner door panel assembly (4) and the outer door panel assembly (3), and the inner door panel assembly (4) is attached to the other side in the installation chute through the elastic buffering devices (7).

3. A people air-tight door according to claim 2, characterized in that: the outer door plate assembly (3) comprises a plurality of outer door plate vertical beams (11) and outer door plate cross beams (10) which are arranged in a transverse-vertical mode, wherein the top ends of the outer door plate vertical beams (11) are attached to the side wall of the upper frame (1) and a gap is formed between the top ends of the outer door plate vertical beams and the top of the upper frame (1); the bottom end of the outer door plate vertical beam (11) is attached to the side wall of the lower frame (2) and a gap is formed between the bottom end of the outer door plate vertical beam and the bottom of the lower frame (2); the top end of the outer door plate vertical beam (11) is attached to the side wall of the upper frame (1), and the bottom end of the outer door plate vertical beam (11) is attached to the side wall of the lower frame (2), and a primary buffer device (5) for fixing the top end of the outer door plate vertical beam (11) and the side wall of the upper frame (1), and the bottom end of the outer door plate vertical beam (11) and the side wall of the lower frame (2) are mounted; the first-stage buffer device (5) is a fastening screw.

4. A people air-tight door according to claim 2, characterized in that: the inner door plate assembly (4) comprises a plurality of inner door plate vertical beams (13) and inner door plate cross beams (12) which are arranged in a transverse-vertical mode, wherein the top ends of the inner door plate vertical beams (13) are attached to the side wall of the upper frame (1) and a gap is formed between the top ends of the inner door plate vertical beams and the top of the upper frame (1); the bottom end of the inner door plate vertical beam (13) is attached to the side wall of the lower frame (2) and a gap is formed between the bottom end of the inner door plate vertical beam and the bottom of the lower frame (2).

5. The people air-tight door according to claim 4, characterized in that: the top end of the inner door plate vertical beam (13) is fixed on the side wall of the upper frame (1), and the bottom end of the outer door plate vertical beam (11) is fixed on the side wall of the lower frame (2); the outer door plate vertical beam (11), the outer door plate cross beam (10), the inner door plate vertical beam (13) and the inner door plate cross beam (12) are all hollow channel steel.

6. The people air-tight door according to claim 5, characterized in that: outer door plant erects the first recess (8) that is used for fixed elastic buffer device (7) of being equipped with of the intersect of roof beam (11) and outer door plant crossbeam (10) inner door plant erects the second recess (14) that is used for fixed elastic buffer device (7) of being equipped with of the intersect of roof beam (13) and inner door plant crossbeam (12), and the one end of elastic buffer device (7) is installed in first recess (8), and the other end of elastic buffer device (7) is installed in second recess (14).

7. A people air-tight door according to any of claims 2-6, characterized in that: the elastic buffer device (7) is an annular spring.

8. The people air-tight door according to claim 7, characterized in that: an upper bearing plate (6) is installed on the outer side of the top of the upper frame (1), and a lower bearing plate (9) is installed on the outer side of the bottom of the lower frame (2).

9. A people air-tight door according to claim 1, characterized in that: a sealing strip (22) is arranged between the door frame (15) and the door leaf (16), an annular clamping groove is formed in the position, close to the outer contour of the door leaf (16), of one side, opposite to the door leaf (16), of the door frame (15), the annular clamping groove is formed by a first pressure bearing strip (21) arranged horizontally, a second pressure bearing strip (24) arranged obliquely and the door frame (15), the end, connected with the top of the door frame (15), of the second pressure bearing strip (24) is a low end, and the sealing strip (22) is arranged in the annular clamping groove.

10. A people air-tight door according to claim 9, characterized in that: the door leaf (16) is provided with an annular embedded pressing strip (23) at the position opposite to the sealing strip (22), and the embedded pressing strip (23) is embedded into the sealing strip (22) when the door leaf (16) is closed with the door frame (15).

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