CN210508902U - Steel construction elasticity protective airtight door - Google Patents
Steel construction elasticity protective airtight door Download PDFInfo
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- CN210508902U CN210508902U CN201921162065.0U CN201921162065U CN210508902U CN 210508902 U CN210508902 U CN 210508902U CN 201921162065 U CN201921162065 U CN 201921162065U CN 210508902 U CN210508902 U CN 210508902U
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Abstract
The utility model discloses a steel construction elasticity protection 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. Including the transversal last frame of personally submitting the U type, the transversal underframe of personally submitting the U type, outer door board subassembly, interior door plant subassembly and a plurality of fall can the device, go up frame and underframe and set up relatively and form the installation spout, one side in interior door plant subassembly fixed mounting is in the installation spout, the opposite side of outer door plant subassembly movable mounting in the installation spout, fall can the device mount between interior door plant subassembly and outer door plant subassembly, and interior door plant subassembly can the device laminating opposite side in the installation spout through falling.
Description
Technical Field
The utility model relates to an engineering explosion-proof impact shock insulation technical field, more specifically the utility model relates to a steel construction elasticity protection airtight door that says so.
Background
Protective airtight doors and airtight doors are one of the very important protective facilities at the entrances and exits of civil air defense engineering, and are generally called civil air defense doors. 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 light protective 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 steel construction elasticity protective sealed door.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a steel structure elastic protective airtight door 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 energy dissipation devices, wherein the upper frame and the lower frame are oppositely arranged to form an installation chute; the energy dissipation device is a hollow cylinder with a trapezoidal cross section; 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 mode, 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; and 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 respectively 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 with the side wall of the lower frame.
When the protective airtight door with the double buffering device is installed, the outer door panel component is arranged towards the outside, when the outer door panel component is subjected to explosion shock waves generated by the outside, the outer door panel component can move towards the inner door panel component under stress, and because the outer door panel component and the side wall of the installation chute formed by the upper frame and the lower frame are movably connected, the outer door panel component cannot drive the side walls of the upper frame and the lower frame to move together when moving towards the inner door panel component after being stressed, so that the upper frame and the lower frame cannot deform; and outer door plant subassembly atress back can extrude the ulcerate can the device between interior door plant subassembly and the outer door plant subassembly when moving to interior door plant subassembly direction, self energy-absorbing deformation and the compound mode that outer door plant subassembly self structure warp through a plurality of ulcerate can the device carry out the energy-absorbing to the shock wave, and compare in solid reinforced concrete structure, effectively reduce 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.
In the utility model, the top end of the outer door plate vertical beam and the gap between the bottom end of the outer door plate vertical beam and the upper frame and the lower frame are arranged to ensure 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 can not 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 energy absorption of the crushing energy device can be conveniently extruded; 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 energy absorption device to absorb energy.
Another innovative point of the present invention is the one-level buffer device. Owing to set up one-level buffer, when outer door panel assembly received external shock wave effect like this, outer door panel assembly takes precedence to contact 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 component continues to move towards the inner door plate component, and at the moment, the energy collapse device slowly deforms due to the extrusion of the outer door plate component, so that the impact acting force on the outer door plate component 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 collapse energy device is formed in the intersection point of the outer door panel vertical beam and the outer door panel cross beam, a second groove for fixing the collapse energy device is formed in the intersection point of the inner door panel vertical beam and the inner door panel cross beam, the small-diameter end of the hollow cylinder with the trapezoidal cross section is installed in the first groove, and the large-diameter end of the hollow cylinder with the trapezoidal cross section is installed in the second groove. Is convenient for installation, fixation and replacement. Meanwhile, the hollow cylinder with the trapezoidal cross section deforms to absorb the energy of the shock waves, because the small-diameter end of the hollow cylinder with the trapezoidal cross section is extruded by the outer door panel assembly firstly, the energy of the received shock waves is transmitted to the direction of the large-diameter end of the hollow cylinder with the trapezoidal cross section, the energy collapsing device unloads the transverse shock wave energy obliquely upwards and downwards in the stress deformation process, and meanwhile, the acting force transmitted to the inner door panel assembly can also be reduced due to the increase of the area in the process that the energy is transmitted to the large-diameter end of the energy collapsing device at the small-diameter end of the energy collapsing device.
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, the wall thickness of the hollow cylindrical body of the energy crushing device is 8mm, and the hollow cylindrical body with the thickness of 8mm can absorb energy brought by shock waves through self deformation.
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 the ulcerate can the device between interior door plant subassembly and the outer door plant subassembly when removing to interior door plant subassembly direction, through a plurality of ulcerate can the device and outer door plant subassembly self absorption of structure can the compound mode of deformation carry out the energy-absorbing to the shock wave, and compare in solid reinforced concrete structure, effectively reduce 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.
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 energy absorption of the crushing energy device can be conveniently realized; 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 energy absorption 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 component continues to move towards the inner door plate component, and at the moment, the energy collapse device slowly deforms due to the extrusion of the outer door plate component, so that the impact acting force on the outer door plate component is absorbed, and finally the absorption is completed.
4. The utility model discloses a can ulcerate the cross section of device and become the path end of trapezoidal cavity dress cylinder and install in first recess, the cross section becomes the big footpath end of trapezoidal cavity dress cylinder and installs in the second recess. Is convenient for installation, fixation and replacement. Meanwhile, the hollow cylinder with the trapezoidal cross section deforms to absorb the energy of the shock waves, because the small-diameter end of the hollow cylinder with the trapezoidal cross section is extruded by the outer door panel assembly firstly, the energy of the received shock waves is transmitted to the direction of the large-diameter end of the hollow cylinder with the trapezoidal cross section, the energy collapsing device unloads the transverse shock wave energy obliquely upwards and downwards in the stress deformation process, and meanwhile, the acting force transmitted to the inner door panel assembly can also be reduced due to the increase of the area in the process that the energy is transmitted to the large-diameter end of the energy collapsing device at the small-diameter end of the energy collapsing device.
Drawings
Fig. 1 is a schematic view of a steel structure elastic protective 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 panel assembly of a steel structure elastic protective airtight door of the present invention;
fig. 6 is a schematic structural view of an inner door panel assembly of a steel structure elastic protective airtight door of the present invention;
fig. 7 is a schematic diagram of an energy dissipating device of a steel structure elastic protective airtight door of the present invention;
fig. 8 is a schematic structural diagram of an energy dissipating device of the steel structure elastic protective airtight door of the present invention.
The labels in the figure are: 1-upper frame, 2-lower frame, 3-outer door plate component, 4-inner door plate component, 5-primary buffer device, 6-upper bearing plate, 7-energy dissipation device, 8-first groove, 9-lower bearing plate, 10-outer door plate beam, 11-outer door plate vertical beam, 12-inner door plate beam, 13-inner door plate vertical beam and 14-second groove.
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. 1 and 2, a steel structure elastic protective airtight door, including the last frame 1 of the transversal U type of personally submitting, the underframe 2 of the transversal U type of personally submitting, outer door plant subassembly 3, interior door plant subassembly 4 and a plurality of can device 7 of bursting, it forms the installation spout to go up frame 1 and underframe 2 and set up relatively, one side in the installation spout is fixed mounting to interior door plant subassembly 4, the opposite side in the installation spout of outer door plant subassembly 3 movable mounting, as shown in fig. 3 and 4, it is only partial that outer door plant subassembly 3, interior door plant subassembly 4 top and bottom are wrapped respectively to go up frame 1 and underframe 2, can install between interior door plant subassembly 4 and outer door plant subassembly 3 to burst can device 7, and interior door plant subassembly 4 is through the opposite side of can device 7 laminating in the installation spout. The energy dissipation device 7 is a hollow cylindrical body with a trapezoidal cross section; the wall thickness of the hollow cylindrical body of the energy crushing device 7 is 8mm, and the hollow cylindrical body with the thickness of 8mm can absorb energy brought by shock waves through self deformation.
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.
In this embodiment, 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 is installed at the position 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 bottom end of the outer door panel vertical beam 11 and the side wall of the lower frame 2 are attached.
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.
As shown in fig. 7 and 8, a first groove 8 for fixing the energy collapsing device 7 is provided 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 energy collapsing device 7 is provided at the intersection of the inner-door-panel vertical beam 13 and the inner-door-panel cross beam 12, a small-diameter end of a hollow cylinder with a trapezoidal cross section is installed in the first groove 8, and a large-diameter end of the hollow cylinder with a trapezoidal cross section is installed in the second groove 14. Is convenient for installation, fixation and replacement. Meanwhile, the hollow cylinder with the trapezoidal cross section deforms to absorb the energy of the shock wave, because the small-diameter end of the hollow cylinder with the trapezoidal cross section is firstly extruded by the outer door panel assembly 3, the energy of the received shock wave is transmitted to the direction of the large-diameter end of the hollow cylinder with the trapezoidal cross section, the energy collapsing device 7 unloads the transverse shock wave energy obliquely upwards and downwards in the stress deformation process, and meanwhile, the acting force transmitted to the inner door panel assembly 4 can also be reduced due to the increase of the area in the process that the energy is transmitted to the large-diameter end of the energy collapsing device 7 from the small-diameter end of the energy collapsing device 7.
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 door plant subassembly 4 and outer door plant subassembly 3 between bursting can device 7 in the extrusion when 4 directions of door plant subassembly move, can carry out the energy-absorbing to the shock wave through the compound mode that self energy-absorbing of a plurality of bursting device 7 and outer door plant subassembly 3 self structures warp, and compare in solid reinforced concrete structure, effectively reduce 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 impact 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 crushing energy device 7 can 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 continuously moving towards the inner door panel assembly 4 and being extruded by the crushing energy device 7 to absorb energy.
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, and at the moment, the energy crushing device 7 is slowly deformed due to the extrusion of the outer door panel component 3, so that 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 (8)
1. The utility model provides a steel construction elasticity protective airtight door which characterized in that: the door frame 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 energy dissipation 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 energy dissipation 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 energy dissipation devices (7); the energy dissipation device (7) is a hollow cylindrical body with a trapezoidal cross section; 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, 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) used for fixing the top end of the outer door plate vertical beam (11), 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) is mounted.
2. The steel structure elastic protective airtight door of claim 1, wherein: the first-stage buffer device (5) is a fastening screw.
3. The steel structure elastic protective airtight door of claim 1, wherein: 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).
4. The steel structure elastic protective airtight door of claim 3, wherein: the top end of the inner door panel vertical beam (13) is fixed on the side wall of the upper frame (1), and the bottom end of the outer door panel vertical beam (11) is fixed on the side wall of the lower frame (2).
5. The steel structure elastic protective airtight door of claim 3, wherein: 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 steel structure elastic protective airtight door of claim 5, wherein: the cross point of the outer door plate vertical beam (11) and the outer door plate cross beam (10) is provided with a first groove (8) for fixing the collapse energy device (7), the cross point of the inner door plate vertical beam (13) and the inner door plate cross beam (12) is provided with a second groove (14) for fixing the collapse energy device (7), the small-diameter end of the hollow cylinder with the trapezoidal cross section is installed in the first groove (8), and the large-diameter end of the hollow cylinder with the trapezoidal cross section is installed in the second groove (14).
7. The steel structure elastic protective airtight door according to any one of claims 1 to 6, wherein: 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).
8. The steel structure elastic protective airtight door of claim 7, wherein: the wall thickness of the hollow cylindrical body of the energy crushing device (7) is 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921162065.0U CN210508902U (en) | 2019-07-23 | 2019-07-23 | Steel construction elasticity protective airtight door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921162065.0U CN210508902U (en) | 2019-07-23 | 2019-07-23 | Steel construction elasticity protective airtight door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210508902U true CN210508902U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921162065.0U Active CN210508902U (en) | 2019-07-23 | 2019-07-23 | Steel construction elasticity protective airtight door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210508902U (en) |
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2019
- 2019-07-23 CN CN201921162065.0U patent/CN210508902U/en active Active
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