CN111877832B - Civil air defense entrance to a cave plugging device - Google Patents
Civil air defense entrance to a cave plugging device Download PDFInfo
- Publication number
- CN111877832B CN111877832B CN202010880714.1A CN202010880714A CN111877832B CN 111877832 B CN111877832 B CN 111877832B CN 202010880714 A CN202010880714 A CN 202010880714A CN 111877832 B CN111877832 B CN 111877832B
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- cover plate
- air defense
- civil air
- rotor
- plugging device
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- 230000007123 defense Effects 0.000 title claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 129
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/04—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against air-raid or other war-like actions
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B11/00—Means for allowing passage through fences, barriers or the like, e.g. stiles
- E06B11/08—Turnstiles; Gates for control of entry or exit of persons, e.g. in supermarkets
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/02—Doors, windows, or like closures for special purposes; Border constructions therefor for out-buildings or cellars; Other simple closures not designed to be close-fitting
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a civil air defense opening plugging device, which comprises: the supporting mechanism at least comprises a bearing beam positioned at the civil air defense opening; the cover plate mechanism comprises a plurality of cover plate units which are sequentially pivoted, and the cover plate mechanism is positioned on the bearing beam; the storage mechanism is arranged in the pre-opening space at one side of the side wall of the civil air defense opening, at least comprises a rotor, and one end, close to the storage mechanism, of the cover plate mechanism is connected to the rotor; a pulling mechanism for pulling the cover plate mechanism such that: the cover plate mechanism moves towards the direction of the containing mechanism, so that the cover plate units which are pivoted with each other are sequentially wound on the rotor and the cover plate units which are pivoted with each other and wound on the rotor are sequentially unfolded, and the cover plate mechanism moves onto the bearing beam again.
Description
Technical Field
The invention relates to the technical field of civil air defense, in particular to a device for blocking a civil air defense opening.
Background
Conventionally, a hole (or a civil air defense hole, which is a hole with multiple fingers facing upwards) of a prior art air-raid shelter is usually provided with a blocking cover, the blocking cover is arranged at the hole in a buckling manner, for example, the blocking cover is buckled at the hole in a manner that the blocking cover and the hole are not connected with each other, and for example, the blocking cover is pivoted with the edge of the hole and buckled at the hole.
The above-mentioned mode of shutoff entrance to a cave among the prior art has following defect:
1. After the opening is opened, the plugging cover can only be moved to one side of the opening due to the large weight and is exposed to the external environment.
2. Because the plugging cover is usually made of concrete or thick steel plates, the plugging cover has large volume and heavy weight, and the opening and plugging process is laborious, which is unfavorable for the rapid conversion of the combination of peacetime and war.
3. The plugging cover is actually overlapped at the opening, and the plugging capability is poor, for example, when the plugging cover is subjected to a large outward impact force, the plugging cover may fly away from the opening due to the impact.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a civil air defense opening plugging device.
In order to solve the technical problems, the invention adopts the following technical scheme:
a people's air defense entrance to a cave plugging device, includes:
The supporting mechanism at least comprises a bearing beam positioned at the civil air defense opening;
The cover plate mechanism comprises a plurality of cover plate units which are sequentially pivoted, and the cover plate mechanism is positioned on the bearing beam;
The storage mechanism is arranged in the pre-opening space at one side of the side wall of the civil air defense opening, at least comprises a rotor, and one end, close to the storage mechanism, of the cover plate mechanism is connected to the rotor;
a pulling mechanism for pulling the cover plate mechanism such that:
The cover plate mechanism moves towards the direction of the containing mechanism, so that the cover plate units pivoted with each other are sequentially wound on the rotor
And
The cover plate units which are wound on the rotor and pivoted are sequentially unfolded, so that the cover plate mechanism moves onto the bearing beam again.
Preferably, the rotor comprises a centrally located body and at least one set of brackets circumferentially arranged on the body;
one end, close to the containing mechanism, of the cover plate mechanism is connected to the radial distal end of one of the brackets, and the radial distal ends of the rest brackets are provided with embedded grooves;
The two adjacent cover plate units are pivoted by virtue of a pin shaft, and the cover plate units are embedded in the embedded groove by virtue of the pin shaft and are wound on the rotor.
Preferably, the carrier beam is provided with at least one group of rollers, and at least one group of rollers are arranged along the arrangement direction of the cover plate unit; the cover plate mechanism is positioned on the roller; wherein:
The cover plate mechanism is provided with guide grooves extending along the arrangement direction of the cover plate units, and the guide grooves are formed at the bottom of each cover plate unit in a segmented manner; the roller wheels walk in the guide grooves.
Preferably, each segment of the guide groove is defined by oppositely disposed slats secured to the bottom of the cover unit.
Preferably, a clamping strip is fixed on the bearing beam, and extends into the guide groove; wherein:
The guide groove is also used for limiting the cover plate mechanism to be separated from the bearing beam in the vertical direction through the cooperation of the guide groove and the clamping strip.
Preferably, the method comprises the steps of,
The brackets comprise two groups, and the two groups of brackets are opposite and are distributed at intervals;
every two adjacent cover plate units are pivoted through two pin shafts which are arranged at intervals;
The cover plate unit is respectively embedded in the embedded grooves of the two opposite brackets through the two pin shafts and is wound on the rotor.
Preferably, the supporting mechanism further comprises a lifting mechanism;
The lifting mechanism comprises:
The telescopic rod group stretches and contracts through spiral transmission, and the upper end of the telescopic rod group is connected to the bearing beam;
a gear box, the lower end of the telescopic rod group is connected to the gear box;
The first hand wheel is connected to the gear box, and the first hand wheel drives the telescopic rod group to stretch out and draw back through the gear box.
Preferably, the pulling mechanism includes:
A chain for pulling the cover mechanism in a direction approaching and separating from the housing mechanism;
a sprocket for engaging with the chain to pull the chain;
and the second hand wheel is used for driving the chain wheel to rotate.
Preferably, the cover plate mechanism is connected with the bracket by a pull rod.
Preferably, the load beam comprises two parallel arranged load beams.
Compared with the prior art, the invention has the beneficial effects that:
the civil air defense opening plugging device provided by the invention has the beneficial effects that:
1. After the opening of the hole is opened, the cover plate mechanism is hidden at one side of the hole and is not exposed on the ground outside the hole.
2. The cover plate mechanism is accommodated in a manner of being wound on the rotor, and no manual carrying or lifting machinery is required.
3. The opening and closing of the cover mechanism can accomplish all operations in the underground space without any surface operations.
4. When the cover plate mechanism is impacted, the cover plate mechanism is not separated from the bearing beam by the cooperation of the clamping strips and the guide grooves, namely, the cover plate mechanism is not flown away from the hole due to the impact.
Drawings
In the drawings, which are not necessarily drawn to scale, like numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings illustrate various embodiments by way of example in general and not by way of limitation, and together with the description and claims serve to explain the inventive embodiments. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive of the present apparatus or method.
Fig. 1 is a schematic diagram of the overall structure of a device for blocking a civil air defense entrance according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a rotor in the civil air defense opening plugging device according to the embodiment of the invention.
Fig. 3 is an E-E view of fig. 2.
Fig. 4 is a view in the A-A direction of fig. 1.
Fig. 5 is a view in the A-A direction of fig. 1.
Fig. 6 is a cross-sectional view taken along the direction C-C of fig. 1.
Fig. 7 is a D-D cross-sectional view of fig. 1.
Fig. 8 is an enlarged view of a portion F of fig. 4.
Reference numerals:
10-a cover plate mechanism; 11-a cover plate unit; 12-pin shafts; 121-ear panels; 13-a guide groove; 131-laths; 14-a pull rod; 20-a supporting mechanism; 21-load beam; 211-a roller; 212-clamping strips; 22-telescopic rod group; 23-a gear box; 24-transmission shafts; 25-a first hand wheel; 30-a storage mechanism; 31-a rotor; 311-brackets; 3111-embedding grooves; 312-body; 32-supporting seats; 40-a pulling mechanism; 41-chain; 411-connecting plates; 42-sprocket; 43-a second hand wheel; 44-guide wheels; 100-civil air defense entrance; 200-space; 300-wall.
Detailed Description
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In order to keep the following description of the embodiments of the present invention clear and concise, the detailed description of known functions and known components thereof have been omitted.
As shown in fig. 1 to 8, an embodiment of the present invention discloses a device for plugging a civil air defense portal 100, which comprises: the support mechanism 20, the cover mechanism 10, the storage mechanism 30, and the pulling mechanism 40. Wherein: the cover plate mechanism 10 is used for blocking the civil air defense portal 100; the supporting mechanism 20 is used for supporting the cover plate mechanism 10 so that the cover plate mechanism can be kept at the height for blocking the hole; the pulling mechanism 40 is used for pulling the cover plate mechanism 10 to enable the cover plate mechanism 10 to move to a position for blocking the civil air defense opening 100 and to hide from the civil air defense opening 100 to enable the civil air defense opening 100 to be opened; the storage mechanism 30 is used for storing the cover plate mechanism 10 which is hidden away from the civil air defense opening 100.
As shown in fig. 1 and 4, the support mechanism 20 specifically includes: carrier bar 21, telescopic link group 22, gear box 23, transmission shaft 24 and first hand wheel 25. The bearing beams 21 comprise two bearing beams 21 which are parallel and horizontally arranged at the civil air defense portal 100 surrounded by the wall 300; the telescopic rod groups 22 comprise four telescopic rod groups 22 which are respectively used for supporting two bearing beams 21, the lower end of each telescopic rod group 22 is provided with a gear box 23, the gear box 23 is a gear box 23 meshed by bevel gears in the prior art, the gear box 23 is provided with an output end and an input end, and the output end of the gear box 23 is used for driving the telescopic rod groups 22; a transmission shaft 24 is arranged between the input ends of the adjacent gear boxes 23; a gear box 23 is further disposed between two adjacent gear boxes 23, and a first hand wheel 25 is connected to the gear boxes 23, so that the transmission shaft 24 can be driven to synchronously rotate by rotating the first hand wheel 25, and the four telescopic rod groups 22 can be synchronously driven by the gear boxes 23.
The telescopic rod group 22 comprises a sleeved rod body positioned at the upper part and a tube body positioned at the lower part; the rod body and the pipe body form spiral transmission, and the pipe body is driven to rotate by the transmission of the gear box 23 and the transmission shaft 24 through rotating the first hand wheel 25, so that the telescopic rod group 22 can stretch and retract, and further the two bearing beams 21 are driven to synchronously lift.
As shown in fig. 1, the cover mechanism 10 is a component for blocking the civil air defense opening 100, the cover mechanism 10 is located on two bearing beams 21, specifically, as shown in fig. 1 and 7, the cover mechanism 10 includes a plurality of cover units 11 arranged in sequence, two adjacent cover units 11 are pivoted by two pins 12 arranged at intervals and mounted on an ear plate 121, and for the cover mechanism 10, all the pins 12 are divided into two rows side by side.
The bottom of the cover mechanism 10 is formed with two guide grooves 13, and the two guide grooves 13 are respectively positioned outside the two rows of pin shafts 12. Each guide groove 13 is formed in a segment at the bottom of each cover plate unit 11, and as shown in fig. 6 and 8, each guide groove 13 is defined by oppositely disposed slats 131 fixed to the bottom of the cover plate unit 11 by screws. The guide groove 13 surrounded by the two strips 131 has a small notch and a large groove cavity.
More specifically, the two guide grooves 13 are located at positions opposite to the carrier beams 21, and a plurality of rollers 211 are provided on each carrier beam 21 at intervals along the arrangement direction of the cover plate units 11 (or, in other words, along the length direction of the carrier beam 21), so that each cover plate unit 11 is supported by the rollers 211 and the rollers 211 can guide the guide grooves 13 to move in the guide grooves 13. A plurality of clamping bars 212 are fixed on each carrier beam 21 at intervals along the arrangement direction of the cover plate unit 11, and the clamping bars 212 and the rollers 211 are located in the same row, for example, the clamping bars 212 and the rollers 211 can be alternately arranged along the arrangement direction of the cover plate unit 11. As shown in fig. 6, the cross section of the clip 212 is in an "i" shape, and the upper portion of the clip 212 is located in the guide groove 13.
The pulling mechanism 40 and the cover mechanism 10 cover the roller 211 of the guide groove 13 of the cover mechanism 10 cover the roller 211 of the cover mechanism 11 and the cover unit 11 when the cover mechanism 10 is positioned on the carrier beam 21, namely, when the cover mechanism 10 is in a state of blocking the civil air defense opening 100, the upper part of the clamping strip 212 is positioned in the guide groove 13, at this time, the clamping strip 212 is matched with the guide groove 13 to further limit the separation of the cover unit 11 and the carrier beam 21 in the vertical direction, and further limit the separation of the whole cover mechanism 10 and the carrier beam 21.
As shown in fig. 1, a rectangular space 200 is pre-opened on the side wall of the civil air defense portal 100 in the arrangement direction of the cover plate unit 11, and the housing mechanism 30 is disposed in the space 200, so that the housing mechanism 30 is close to one end of the cover plate mechanism 10 in the arrangement direction. The housing mechanism 30 includes a support 32 and a rotor 31, the support 32 is fixed at the bottom of the space, and the rotor 31 is rotatably mounted at the upper end of the support 32.
As shown in fig. 2 and 3, the rotor 31 has the following structure: the rotor 31 has a body 312 in the middle, two sets of brackets 311 circumferentially arranged on the body 312 and spaced apart from each other, and the two sets of brackets 311 respectively correspond to the two pins 12 of the pivotally-connected cover unit 11 in the lateral direction. The brackets 311 in the two groups of brackets 311 are in one-to-one correspondence in the circumferential direction, wherein two opposite brackets 311 are connected to the end part of the cover plate mechanism 10 through a pull rod 14, and the pull rod 14 is pivoted with the brackets 311 and the cover plate mechanism 10; the radially distal ends of the remaining opposite brackets 311 are each provided with an embedded groove 3111, and it is understood that the embedded grooves 3111 laterally correspond to the pins 12.
It should be noted that: the distance between the distal ends of the adjacent two brackets 311 arranged circumferentially is equal to the distance between the pins 12 on both sides of the cover unit 11 in the arrangement direction
When the pulling mechanism 40 applies a force to the deck mechanism 10 in a direction toward the housing mechanism 30, the deck mechanism 10 moves toward the rotor 31 of the housing mechanism 30 under the guide of the guide groove 13, then the pin shaft 12 for pivoting the deck unit 11 approaches the distal end of the bracket 311 and is then fitted on the fitting groove 3111, when the pin shaft 12 located in front is fitted on the fitting groove 3111, the deck unit 11 behind pushes against the deck unit 11 in front, so that the deck unit 11 in front is attached between the two brackets 311 by the engagement of the pin shaft 12 with the fitting groove 3111, and the pushing force of the deck unit 11 behind causes the rotor 31 to rotate and then the deck unit 11 behind is attached to the other brackets 311 in the same manner, thereby achieving the winding and housing action of the rotor 31 on the deck mechanism 10.
As will be readily appreciated, when the pulling mechanism 40 applies a force in the opposite direction to the deck mechanism 10, the pins 12 of the deck units 11 in the deck mechanism 10 wound around the rotor 31 are sequentially disengaged from the embedded grooves 3111, so that the rotor 31 gradually spreads the deck mechanism 10, and the deck mechanism 10 is moved again to above the carrier beams 21 to reseat the civil air defense portal 100.
As shown in fig. 1, the pulling mechanism 40 specifically includes: chain 40, sprocket 42, guide wheel 44, and second hand wheel 43. The sprocket 42 and the auxiliary arrangement are fixed to the ground in the hole, the chain 40 is engaged with the sprocket 42 on the one hand and connected to a connecting plate 411 of the cover mechanism 10 on the other hand, the connecting plate 411 being provided at an end of the cover mechanism 10 remote from the housing mechanism 30, and the second hand wheel 43 is connected to the sprocket 42 by a reversing mechanism (such as the above-described gear case 23) to drive the sprocket 42 to rotate. Thus, the second hand wheel 43 is rotated to retract and release the chain 40, so as to drive the cover mechanism 10 to move, thereby opening or closing the civil air defense opening 100 by the cover mechanism 10. While the guide wheels 44 are fixed to the load beam 21 for guiding the chain 40 and preventing the chain 40 from contacting other components.
The principle of the pulling mechanism 40 pulling the cover mechanism 10 is similar to that of a curtain or the like, and will not be described here.
It should be noted that the purpose of driving the telescopic rod group 22 to extend and retract is to:
When the cover plate mechanism 10 is in a state of blocking the civil air defense opening 100, the telescopic rod group 22 can be retracted by rotating the first hand wheel 25, so that the bearing beam 21 moves downwards, the downwards moving bearing beam 21 drives the clamping strip 212 and the lower groove wall of the guide groove 13 to be tensioned, and further, the cover plate mechanism 10 is prevented from moving in the thickness direction when being impacted.
When the cover plate mechanism 10 needs to be stored to open the civil air defense opening 100, the first hand wheel 25 is reversely rotated to enable the bearing beam 21 to move upwards by a certain height, so that the upper part of the clamping strip 212 is positioned in the middle of the guide groove 13, and the clamping strip 212 is prevented from generating resistance to the movement of the cover plate mechanism 10.
The civil air defense portal 100 plugging device provided by the invention has the advantages that:
1. the cover plate mechanism 10 in the invention is hidden at one side of the hole after the hole is opened, and is not exposed on the ground outside the hole.
2. The cover mechanism 10 is housed so as to be wound around the rotor 31, and no manual handling or lifting machine is required.
3. The opening and closing of the deck mechanism 10 can accomplish all operations in the subterranean space without any surface operations.
4. When the cover mechanism 10 is impacted, the cover mechanism 10 is not separated from the bearing beam 21 by the cooperation of the clamping strips 212 and the guide grooves 13, i.e. the cover mechanism 10 is not flown away from the hole due to the impact.
Furthermore, although exemplary embodiments have been described in the present disclosure, the scope thereof includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of the various embodiments across), adaptations or alterations as would be appreciated by those in the art. The elements in the claims are to be construed broadly based on the language employed in the claims and are not limited to examples described in the present specification or during the practice of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more aspects thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above detailed description, various features may be grouped together to streamline the invention. This is not to be interpreted as an intention that the disclosed features not being claimed are essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with one another in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a people's air defense entrance to a cave plugging device which characterized in that includes:
The supporting mechanism at least comprises a bearing beam positioned at the civil air defense opening;
The cover plate mechanism comprises a plurality of cover plate units which are sequentially pivoted, and the cover plate mechanism is positioned on the bearing beam;
The storage mechanism is arranged in the pre-opening space at one side of the side wall of the civil air defense opening, at least comprises a rotor, and one end, close to the storage mechanism, of the cover plate mechanism is connected to the rotor;
a pulling mechanism for pulling the cover plate mechanism such that:
The cover plate mechanism moves towards the direction of the containing mechanism, so that the cover plate units pivoted with each other are sequentially wound on the rotor
And
The cover plate units which are wound on the rotor and pivoted are sequentially unfolded, so that the cover plate mechanism moves onto the bearing beam again.
2. The civil air defense opening plugging device according to claim 1 wherein the rotor comprises a centrally located body and at least one set of brackets circumferentially arranged on the body;
one end, close to the containing mechanism, of the cover plate mechanism is connected to the radial distal end of one of the brackets, and the radial distal ends of the rest brackets are provided with embedded grooves;
The two adjacent cover plate units are pivoted by virtue of a pin shaft, and the cover plate units are embedded in the embedded groove by virtue of the pin shaft and are wound on the rotor.
3. The civil air defense opening plugging device according to claim 1, wherein the carrier beam is provided with at least one group of rollers, at least one group of rollers being arranged along the arrangement direction of the cover plate unit; the cover plate mechanism is positioned on the roller; wherein:
The cover plate mechanism is provided with guide grooves extending along the arrangement direction of the cover plate units, and the guide grooves are formed at the bottom of each cover plate unit in a segmented manner; the roller wheels walk in the guide grooves.
4. A civil air defense opening plugging device according to claim 3 wherein each segment of the guide channel is defined by oppositely disposed slats secured to the bottom of the cover plate unit.
5. The civil air defense opening plugging device according to claim 4, wherein the carrier beam is fixed with a clamping strip, and the clamping strip extends into the guide groove; wherein:
The guide groove is also used for limiting the cover plate mechanism to be separated from the bearing beam in the vertical direction through the cooperation of the guide groove and the clamping strip.
6. The civil air defense opening plugging device according to claim 2, wherein,
The brackets comprise two groups, and the two groups of brackets are opposite and are distributed at intervals;
every two adjacent cover plate units are pivoted through two pin shafts which are arranged at intervals;
The cover plate unit is respectively embedded in the embedded grooves of the two opposite brackets through the two pin shafts and is wound on the rotor.
7. The civil air defense opening plugging device of claim 1 wherein the support mechanism further comprises a lifting mechanism;
The lifting mechanism comprises:
The telescopic rod group stretches and contracts through spiral transmission, and the upper end of the telescopic rod group is connected to the bearing beam;
a gear box, the lower end of the telescopic rod group is connected to the gear box;
The first hand wheel is connected to the gear box, and the first hand wheel drives the telescopic rod group to stretch out and draw back through the gear box.
8. The civil air defense opening plugging device of claim 1 wherein the pulling mechanism comprises:
A chain for pulling the cover mechanism in a direction approaching and separating from the housing mechanism;
a sprocket for engaging with the chain to pull the chain;
and the second hand wheel is used for driving the chain wheel to rotate.
9. The civil air defense opening plugging device according to claim 2 wherein the cover plate mechanism is connected to the bracket by means of a tie rod.
10. The civil air defense opening plugging device according to claim 1 wherein the load beam comprises two parallel rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010880714.1A CN111877832B (en) | 2020-08-27 | 2020-08-27 | Civil air defense entrance to a cave plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010880714.1A CN111877832B (en) | 2020-08-27 | 2020-08-27 | Civil air defense entrance to a cave plugging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111877832A CN111877832A (en) | 2020-11-03 |
| CN111877832B true CN111877832B (en) | 2024-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010880714.1A Active CN111877832B (en) | 2020-08-27 | 2020-08-27 | Civil air defense entrance to a cave plugging device |
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| CN (1) | CN111877832B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212535263U (en) * | 2020-08-27 | 2021-02-12 | 北京建筑机械化研究院有限公司 | Civil air defense entrance to a cave plugging device |
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| EP2679754A2 (en) * | 2012-06-28 | 2014-01-01 | Sigu bvba | A guiding component, as well as a mounting kit part, a mounting kit and a window comprising at least one such a guiding component. |
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| JP6288346B2 (en) * | 2017-04-07 | 2018-03-07 | 株式会社イトーキ | Door opening and closing device |
| CN107143261A (en) * | 2017-05-10 | 2017-09-08 | 江苏广通电力设备有限公司 | Rotary moveable beam combined gate tank cover plate |
| JP6892325B2 (en) * | 2017-05-29 | 2021-06-23 | 三和シヤッター工業株式会社 | Differential pressure relief device |
| CN107448114A (en) * | 2017-09-12 | 2017-12-08 | 安徽人防设备有限公司 | The bottom closed component of subway protection flooding-proof closing door |
| CN109731244A (en) * | 2018-12-20 | 2019-05-10 | 南京慧龙城市规划设计有限公司 | A kind of emergency escape system applied in civil air defense constructions and installations |
| CN109707451A (en) * | 2019-02-15 | 2019-05-03 | 中铁第四勘察设计院集团有限公司 | A fireproof and explosion-proof tunnel protection door system |
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2020
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212535263U (en) * | 2020-08-27 | 2021-02-12 | 北京建筑机械化研究院有限公司 | Civil air defense entrance to a cave plugging device |
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