CN210918760U - Protective airtight door with improved locking mechanism - Google Patents
Protective airtight door with improved locking mechanism Download PDFInfo
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- CN210918760U CN210918760U CN201921259817.5U CN201921259817U CN210918760U CN 210918760 U CN210918760 U CN 210918760U CN 201921259817 U CN201921259817 U CN 201921259817U CN 210918760 U CN210918760 U CN 210918760U
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Abstract
The utility model relates to a protective airtight door with modified blocked mechanical system, wherein, the door leaf is through slidable hinge page or leaf and rotatory elevating system erection joint on the door frame, the door leaf locking that falls into formula blocking device will descend for the door frame is in order to inject the block state in the decline position, sealing device is located between door frame and the door leaf and is sealed for the whole of door frame in order to ensure the door leaf of block state, it includes the formula tapered end that falls into on the door leaf to fall into formula blocking device, the door frame has the lock box of cooperation formula tapered end that falls into in order to realize the lock state of door leaf for the door frame, it is formed with the cantilever bar structure of expansion portion for the end to fall into formula tapered end, the lock box is injectd big-end-up's breach and is had the direction inclined plane and gradually realizes sealing device's pressure seal with. According to the utility model discloses a protective airtight door, simple structure, the conversion is swift, can realize the quick opening and closing of door leaf and protective sealing, safe and reliable.
Description
Technical Field
The present invention relates to a people's air defense protective airtight door, and more particularly to a protective airtight door with an improved locking mechanism.
Background
The protective airtight door is often applied to civil air defense engineering and used for blocking shock waves and meeting the corresponding resistance requirement.
A prior art protective airtight door generally includes a locking mechanism 1' disposed at a rear side of a door leaf, as shown in fig. 7, to move the door leaf toward a door frame while the door leaf is lowered to achieve a locking seal. However, the known protective airtight door has a complicated structure, many components, and low production efficiency. Furthermore, to avoid the locking mechanism 1 'from being scratched and damaged during transportation, the locking mechanism 1' needs to be first debugged in the factory, then disassembled, packed and transported, and finally installed on site. The installation efficiency is low due to the fact that the construction conditions are poor usually during field installation.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the structure of the protective airtight door among the prior art is complicated and the installation effectiveness is low, the utility model provides a protective airtight door with modified blocked mechanical system.
The utility model provides a protective airtight door with an improved locking mechanism, which comprises a door frame, a door leaf, a slidable hinge and a rotary lifting mechanism, wherein the door leaf is connected on the door frame by a slidable hinge and a rotary lifting mechanism, the protective airtight door also comprises a drop-in type locking device for locking the door leaf which is descended relative to the door frame at a descending position to limit a locking state and a sealing device positioned between the door frame and the door leaf to ensure the integral sealing of the door leaf relative to the door frame in the locking state, the falling type locking device comprises a falling type locking head which is in threaded connection with the door leaf, the door frame is provided with a locking box matched with the falling type locking head so as to realize the locking state of the door leaf relative to the door frame, the falling type locking head is of a cantilever rod structure with an expanded part formed at the tail end, and the locking box limits a gap with a large upper part and a small lower part and is provided with a guide inclined plane so as to ensure that the falling type locking head gradually realizes the compression sealing of the sealing device along with the downward movement of the door leaf after falling into the locking box.
Preferably, the drop-in locking device comprises three drop-in locks located at the top and both sides of the door leaf, respectively, and the door frame has three lock boxes.
Preferably, the sealing structure comprises a first sealing rubber strip on the door frame and a second sealing rubber strip on the door leaf.
Preferably, the door frame comprises a U-shaped body surrounding the left side, the upper side and the right side of the door opening and a lower doorsill connected with the U-shaped body and located below the door opening, a first rubber strip groove used for containing and fixing a first sealing rubber strip is arranged on the surface of the U-shaped body facing the door leaf, and a second rubber strip groove used for containing and fixing a second sealing rubber strip is arranged on the surface of the bottom of the door leaf facing the lower doorsill.
Preferably, the rear side of the bottom of the door leaf has a door lock inserted into a locking hole of the lower sill to enhance the capability of the door leaf in a locked state to block shock waves.
Preferably, the lower threshold is embedded to the ground through reinforced concrete so that the upper surface of the lower threshold is flush with the ground.
Preferably, the door leaf has a welded block protruding from the top and side surfaces for mounting the drop-in lock.
Preferably, the rotary lifting mechanism comprises a bearing arm, a translation base and a screw rod lifter, wherein the bearing arm is fixedly connected to the door leaf, the translation base is fixed to the door frame, and the screw rod lifter is respectively connected with the bearing arm and the translation base to drive the door leaf to lift relative to the door frame.
Preferably, the screw rod lift includes screw rod and the screw rod of screw-thread fit, and wherein, the screw rod is connected with the bearing arm, screw rod and translation base fixed connection.
Preferably, the rotary lifting mechanism further comprises a driving rocking handle, a speed reducer, a transmission rod and a bevel gear reduction box, wherein the driving rocking handle is connected with the transmission rod through the speed reducer, and the transmission rod is connected to the screw rod lifter through the bevel gear reduction box.
According to the utility model discloses a protective airtight door with modified blocked mechanical system makes the door leaf remove in order to realize that the shutting is sealed towards the door frame through falling into formula blocking device realization when the door leaf descends, and wherein the threaded connection that falls into the formula tapered end makes the debugging in the factory omitted and make the field installation go on fast, has realized the whole transportation of door leaf simultaneously, has reduced installation and cost of transportation. In a word, according to the utility model discloses a protective sealed door, simple structure, the conversion is swift, can realize opening fast of door leaf and close and the protection is sealed, safe and reliable.
Drawings
Fig. 1 is a schematic view of the overall construction of a containment door having an improved latching mechanism in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of a door frame of the containment door of FIG. 1;
FIG. 3 is a schematic view of the construction of the door leaf, part of the rotary lifting mechanism and drop-in latch of the containment door of FIG. 1;
fig. 4A is a cross-sectional view of the lock case of the door frame of fig. 2 and the drop-in lock head of the door leaf of fig. 3 in a door leaf open state;
FIG. 4B is a cross-sectional view of the lock box of the door frame of FIG. 2 and the drop-in lock head of the door leaf of FIG. 3 in a door leaf latched state;
FIG. 5 is a schematic view of the rotary lift mechanism of the containment door of FIG. 1;
FIG. 6 is an enlarged partial view of FIG. 5;
fig. 7 shows a latching mechanism of a containment door according to the prior art.
Detailed Description
The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1, the protective airtight door having the improved locking mechanism according to a preferred embodiment of the present invention includes a door frame 1, a door leaf 2, a slidable hinge 3, and a rotary lifting mechanism 4, wherein the door leaf 2 is mounted on the door frame 1 through the slidable hinge 3 and the rotary lifting mechanism 4, thereby achieving an opening and closing movement of the door leaf 2 relative to the door frame 1 around a hinge shaft and a lifting movement of the door leaf 2 relative to the door frame 1 up and down. Wherein, slidable hinge page or leaf 3 is including setting up in the last hinge page or leaf 31 and the lower hinge page or leaf 32 that is used for the overturning moment of balanced door leaf 2 of the side of door leaf 2, and it is more page or leaf that can realize gliding from top to bottom for the conventional use in this field, the utility model discloses only carry out the extension to the connecting axle, therefore concrete structure is no longer repeated herein.
According to the utility model discloses a protective airtight door still including be used for with the door leaf 2 locking that descends for door frame 1 in this decline position with the falling-in formula blocking device 5 of injecing the blocking state and set up sealing device 6 between door frame 1 and door leaf 2, this sealing device 6 is used for guaranteeing the door leaf 2 of blocking state for the whole of door frame 1 is sealed. In the present embodiment, the drop-in type locking device 5 includes three drop-in type locking heads 51 (see fig. 3) installed at left, upper and right sides of the door leaf 2, and the sealing structure 6 includes a U-shaped first sealing rubber strip 61 (see fig. 2) located at left, upper and right sides of the door frame 1 and a second sealing rubber strip 62 (see fig. 3) located at the bottom of the door leaf 2. When the lifting door is used at ordinary times, the door leaf 2 is in a lifting state, the lower edge of the door leaf 2 is slightly higher than the ground plane 7, and the door leaf 2 rotates around the rotary lifting mechanism 4 along the upper hinge page 31 and the lower hinge page 32 to realize the opening and closing of the door leaf 2; when the door is used in wartime, the door leaf 2 is descended under the action of the rotary lifting mechanism 4, the falling type locking device 5 synchronously realizes the locking function along with the downward movement of the door leaf 2, and the sealing device 6 realizes the sealing of the periphery and the bottom of the door leaf 2 and the door frame 1.
As shown in fig. 2, the door frame 1 includes a U-shaped body 11 disposed around the left, upper and right sides of the door opening, and a first strip groove 11a for receiving a first sealing strip 61 is disposed on a surface facing the door leaf 2 to achieve sealing of the left, upper and right sides of the door leaf 2 with respect to the door frame 1. The door frame 1 further comprises a lower door sill 12 connected with the body 11 and located below the door opening, the lower door sill 12 is embedded below the ground through reinforced concrete, so that the upper surface of the lower door sill 12 is flush with the ground 7 (see fig. 1) to be matched with a second sealing rubber strip 62 (see fig. 3) to achieve sealing of the bottom of the door leaf 2 relative to the door frame 1, and protection and sealing requirements can be met when the door leaf 2 is locked. Obviously, the utility model discloses a protective airtight door does not all have the threshold on protrusion ground at ordinary times and in wartime, the current of the personnel of very big local being convenient for and vehicle. Moreover, for the protective airtight door of the threshold that lives is installed to needs among the prior art, the utility model discloses a protective airtight door has avoided the damage that independent threshold appears easily when storing to lose problem and changeover time slow problem. For the protective airtight door of the sealed roof beam of needs installation among the prior art, the utility model discloses a protective airtight door has avoided the sealed roof beam not enough that shock resistance is weak when great length.
The door frame 1 further comprises three lock boxes 13 provided on the body 11, which cooperate with the drop-in latch 5 to achieve a latched state of the door leaf 2 relative to the door frame 1. It should be understood that the number of the lock cases 13 is not limited to three, and four, five, or even more may be provided as required to better ensure the sealing performance of the first sealing rubber strip 61 accommodated in the first rubber strip groove 11a with the circumference of the door leaf 2. In addition, the door frame 1 further includes an installation seat 14 fixed to the right side of the body 11, for installing the rotary elevating mechanism 4.
As shown in fig. 3, the bottom of the door leaf 2 is provided on the surface facing the door frame 1 (i.e. the lower door sill 12) with a second strip groove 21 for receiving a second strip of sealant 62, the second strip of sealant 62 cooperating with the first strip of sealant 61 received in the first strip groove 11a of the door leaf 2 to provide an integral seal of the protective airtight door. The rear side of the bottom of the door leaf 2 is provided with a door lock head 22 which is inserted into the lock hole of the lower door sill 12 of the door frame 1 to strengthen the capability of the door leaf 2 in a locked state for blocking shock waves, and meet the corresponding resistance requirement. In addition, the left, upper and right sides of the door leaf 2 have welding blocks 23 protruding from the top and side surfaces of the door leaf 2 for installing the drop-in type locking device 5.
The drop-in locking device 5 comprises three drop-in locking heads 51 which are screwed to the welding blocks 23 and which, in the locked state, are each inserted into a lock box 13 (see fig. 2) of the door frame 1 for locking. Specifically, each drop-in lock head 51 is a cantilever rod structure perpendicular to the door leaf 2, and the end of the cantilever rod is formed as an enlarged portion which extends into the lock box 13 of the door frame 1 to cooperate to prevent the drop-in lock head 51 from being released from the lock box 13 in a locked state. Referring to fig. 2, each lock box 13 defines a gap with a large top and a small bottom, and further has a guiding inclined surface 13a as shown in fig. 4, so as to ensure that after the drop-in lock head 51 drops into the lock box 13, the door leaf 2 gradually presses and seals the sealing rubber strips of the door frame 1 along with the downward movement of the door leaf 2. Obviously, the utility model discloses a protective airtight door has cancelled the setting among the prior art at the complicated blocked mechanical system of the rear side of door leaf, but has adopted brand-new formula blocking device 5 that falls into, it falls into formula tapered end 51 and can connect on door leaf 2 fast through threaded connection, door leaf 2 itself does not have any of outstanding interior planking probably takes place the structure of colliding with in the transportation, the transportation at ordinary times of being convenient for, and only need when the field installation simple screw in can, convenient and fast, blocked mechanical system among the prior art has also been left out in addition at first debugging then loaded into the case loaded down with trivial details procedures such as packing in the factory.
As shown in fig. 5, the rotary lifting mechanism 4 includes a bearing arm 41, a translational base 42 and a screw elevator 43, wherein the bearing arm 41 is fixedly connected to the door leaf 2, the translational base 42 is fixed to the mounting seat 14 (see fig. 2) of the door frame 1, and the screw elevator 43 is respectively connected to the bearing arm 41 and the translational base 42 to drive the door leaf 2 to lift relative to the door frame 1. As shown in fig. 6, the screw elevator 43 includes a screw 431 and a nut 432, which are engaged with each other by threads, wherein the screw 431 is connected to the bearing arm 41 through a bearing, and the nut 432 is fixedly connected to the translation base 42, so that the lifting movement of the door leaf 2 is realized by the rotation of the screw 431 and the lifting of the bearing arm 41.
In order to drive the rotation of the screw 431, the rotary lifting mechanism 4 further includes a driving crank 44, a reducer 45, a transmission rod 46 and a bevel gear reducer 47, as shown in fig. 5, the driving crank 44 is connected with the transmission rod 46 through the reducer 45, and the transmission rod 46 is connected to the screw lifter 43 (the screw 431) through the bevel gear reducer 47, so that the lifting of the door leaf 2 is realized by driving the crank 44 to rotate the screw lifter 43. In this way, the weight of the door leaf 2 is transmitted to the screw elevator 43 via the bearing arm 41. When the door locking device is used in wartime, the screw rod lifter 43 is driven by rotating the driving rocking handle 44 to realize the downward movement of the door leaf 2, the falling type locking device 5 synchronously realizes the locking function along with the downward movement of the door leaf 2, and meanwhile, the falling type locking head 51 falls into the locking box 13 to downwards extrude the sealing rubber strips 61 and 62 to realize the sealing of the periphery and the bottom of the door leaf 2 and the door frame 1.
What has been described above is only the preferred embodiment of the present invention, not for limiting the scope of the present invention, but various changes can be made to the above-mentioned embodiment of the present invention. All the simple and equivalent changes and modifications made according to the claims and the content of the specification of the present invention fall within the scope of the claims of the present invention. The present invention is not described in detail in the conventional technical content.
Claims (10)
1. A protective airtight door with improved locking mechanism is composed of door frame, door leaf, slidable hinge and rotary lifting mechanism, wherein the door leaf is installed and connected on the door frame through a slidable hinge and a rotary lifting mechanism, the protective airtight door further comprises a drop-in type locking device for locking the door leaf which is lowered relative to the door frame at a lowered position to define a locked state and a sealing device positioned between the door frame and the door leaf to ensure the integral sealing of the door leaf relative to the door frame in the locked state, the falling type locking device comprises a falling type locking head which is in threaded connection with the door leaf, the door frame is provided with a locking box matched with the falling type locking head so as to realize the locking state of the door leaf relative to the door frame, the falling type locking head is of a cantilever rod structure with an expanded part formed at the tail end, and the locking box limits a gap with a large upper part and a small lower part and is provided with a guide inclined plane so as to ensure that the falling type locking head gradually realizes the compression sealing of the sealing device along with the downward movement of the door leaf after falling into the locking box.
2. The protective containment door of claim 1 wherein the drop-in latch includes three drop-in locks on the top and sides of the door leaf and the door frame has three lock boxes.
3. The containment door of claim 1 wherein the sealing structure comprises a first bead located on the door frame and a second bead located on the door leaf.
4. The protective containment door of claim 3 wherein the door frame comprises a U-shaped body surrounding the left, top and right sides of the door opening and a lower sill connected to the body and positioned below the door opening, the U-shaped body having a first strip groove formed in a surface facing the door leaf for receiving a first strip of sealant, and the bottom of the door leaf having a second strip groove formed in a surface facing the lower sill for receiving a second strip of sealant.
5. The protective containment door of claim 4, wherein the rear side of the bottom of the door leaf has a door lock inserted into the locking hole of the lower sill to enhance the capability of the door leaf to block shock waves in the closed state.
6. The protective containment door of claim 4, wherein the lower threshold is embedded in the ground by reinforced concrete so that its upper surface is flush with the ground.
7. The containment door of claim 1 wherein the door leaf has a weld block extending from the top and side for mounting the drop-in lock head.
8. The containment door of claim 1 wherein the rotary lifting mechanism comprises a bearing arm fixedly attached to the door leaf, a translating base fixed to the door frame, and a screw elevator coupled to the bearing arm and the translating base, respectively, to drive the door leaf up and down relative to the door frame.
9. The containment door of claim 8, wherein the screw elevator comprises a screw and a screw that are threadably engaged, wherein the screw is coupled to the load bearing arm and the screw is fixedly coupled to the translating base.
10. The containment door of claim 8 wherein the rotary lift mechanism further comprises a drive rocker, a speed reducer, a drive rod, and a bevel gear reduction box, the drive rocker being connected to the drive rod through the speed reducer, the drive rod being connected to the screw elevator through the bevel gear reduction box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921259817.5U CN210918760U (en) | 2019-08-06 | 2019-08-06 | Protective airtight door with improved locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921259817.5U CN210918760U (en) | 2019-08-06 | 2019-08-06 | Protective airtight door with improved locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210918760U true CN210918760U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921259817.5U Active CN210918760U (en) | 2019-08-06 | 2019-08-06 | Protective airtight door with improved locking mechanism |
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| Country | Link |
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| CN (1) | CN210918760U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295835A (en) * | 2019-08-06 | 2019-10-01 | 上海民防建筑研究设计院有限公司 | A kind of airtight blast door with improved blocking mechanism |
| CN110318644A (en) * | 2019-08-06 | 2019-10-11 | 上海民防建筑研究设计院有限公司 | A kind of loss of weight sealed door |
| CN112288922A (en) * | 2020-12-23 | 2021-01-29 | 南京翔维物流设备制造有限公司 | Intelligent identification entrance guard processor |
| CN115559647A (en) * | 2022-10-27 | 2023-01-03 | 北京航星机器制造有限公司 | Door device with adjustable closing height and adjusting method thereof |
-
2019
- 2019-08-06 CN CN201921259817.5U patent/CN210918760U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295835A (en) * | 2019-08-06 | 2019-10-01 | 上海民防建筑研究设计院有限公司 | A kind of airtight blast door with improved blocking mechanism |
| CN110318644A (en) * | 2019-08-06 | 2019-10-11 | 上海民防建筑研究设计院有限公司 | A kind of loss of weight sealed door |
| CN112288922A (en) * | 2020-12-23 | 2021-01-29 | 南京翔维物流设备制造有限公司 | Intelligent identification entrance guard processor |
| CN112288922B (en) * | 2020-12-23 | 2021-05-18 | 龙南恩嘉智能科技有限公司 | Intelligent identification entrance guard processor |
| CN115559647A (en) * | 2022-10-27 | 2023-01-03 | 北京航星机器制造有限公司 | Door device with adjustable closing height and adjusting method thereof |
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