CN111877832A - Civil air defense entrance to a cave plugging device - Google Patents
Civil air defense entrance to a cave plugging device Download PDFInfo
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- CN111877832A CN111877832A CN202010880714.1A CN202010880714A CN111877832A CN 111877832 A CN111877832 A CN 111877832A CN 202010880714 A CN202010880714 A CN 202010880714A CN 111877832 A CN111877832 A CN 111877832A
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- cover plate
- air defense
- civil air
- cover
- rotor
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- 230000007123 defense Effects 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 132
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 description 12
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 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
- 230000006870 function Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
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- 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 entrance to a cave plugging device, including: the supporting mechanism at least comprises a bearing beam positioned at the civil air defense entrance; 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 accommodating mechanism is arranged in the pre-opened space on one side of the side wall of the civil air defense opening, the accommodating mechanism at least comprises a rotor, and one end of the cover plate mechanism, which is close to the accommodating mechanism, is connected to the rotor; a pulling mechanism for pulling the cover mechanism such that: the cover plate mechanism moves towards the direction of the accommodating mechanism, so that the pivoted cover plate units are wound on the rotor in sequence and the pivoted cover plate units wound on the rotor are unfolded in sequence, and the cover plate mechanism moves to the bearing beam again.
Description
Technical Field
The invention relates to the technical field of civil air defense, in particular to a device for plugging a civil air defense hole.
Background
It is known that the openings of air-raid shelters (or civil air-raid shelters) in the prior art are usually provided with a blocking cover, which is fastened at the opening in a manner that the blocking cover is fastened, for example, fastened at the opening in a manner that the blocking cover is not connected with the opening, and for example, the blocking cover is pivoted with the edge of the opening and fastened at the opening.
The above-mentioned mode of shutoff entrance to a cave in prior art has following defect:
1. after the opening is opened, the blocking cover can only move the blocking cover to one side of the opening due to the heavy weight and is exposed in the external environment.
2. Because the shutoff lid is made by concrete or thick steel plate usually, bulky weight is heavy, and it is very hard to open and shutoff entrance to a cave process, is unfavorable for the quick conversion that peacetime and wartime combined.
3. The plugging cover actually overlaps 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 entrance plugging device.
In order to solve the technical problems, the invention adopts the technical scheme that:
a civil air defense portal plugging device comprising:
the supporting mechanism at least comprises a bearing beam positioned at the civil air defense entrance;
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 accommodating mechanism is arranged in the pre-opened space on one side of the side wall of the civil air defense opening, the accommodating mechanism at least comprises a rotor, and one end of the cover plate mechanism, which is close to the accommodating mechanism, is connected to the rotor;
a pulling mechanism for pulling the cover mechanism such that:
the cover plate mechanism moves towards the direction of the containing mechanism, so that the pivoted cover plate units are wound on the rotor in sequence
And
the pivoted cover units wound on the rotor are successively unfolded, so that the cover mechanism moves to 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 far end of one of the supports, and the radial far ends of the rest supports are provided with embedding grooves;
the two adjacent cover plate units are pivoted by a pin shaft, and the cover plate units are embedded in the embedding grooves through the pin shaft and are wound on the rotor.
Preferably, at least one set of rollers is arranged on the bearing beam, and at least one set of rollers is arranged along the arrangement direction of the cover plate units; the cover plate mechanism is positioned on the roller; wherein:
the cover plate mechanism is provided with a guide groove extending along the arrangement direction of the cover plate units, and the guide groove is formed at the bottom of each cover plate unit in a segmented mode; the roller runs in the guide groove.
Preferably, each of said guide slots is defined by oppositely disposed slats secured to the bottom of said cover unit.
Preferably, a clamping strip is fixed on the bearing beam and extends into the guide groove; wherein:
the guide groove is matched with the clamping strip and is also used for limiting the cover plate mechanism and the bearing beam to be separated in the vertical direction.
Preferably, the first and second electrodes are formed of a metal,
the brackets comprise two groups, and the two groups of brackets are opposite and arranged at intervals;
every two adjacent cover plate units are pivoted through two pin shafts arranged at intervals;
the cover plate unit is respectively embedded in the embedding grooves of the two opposite supports through the two pin shafts and is wound on the rotor.
Preferably, the support mechanism further comprises a lifting mechanism;
the lifting mechanism comprises:
a telescopic rod set which is telescopic by screw transmission, wherein the upper end of the telescopic rod set is connected to the support beam;
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 and retract through the gear box.
Preferably, the pulling mechanism includes:
a chain for pulling the cover mechanism in a direction toward and away 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 and the bracket are connected 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 entrance plugging device provided by the invention has the beneficial effects that:
1. after the opening is opened, the cover plate mechanism is hidden at one side in the opening and is not exposed on the ground outside the opening.
2. The cover plate mechanism is stored in a manner of being wound on the rotor, and manual carrying or hoisting machinery is not needed.
3. The opening and closing of the cover plate mechanism can complete all operations in the underground space without any ground operation.
4. When the cover plate mechanism is impacted, the cover plate mechanism cannot be separated from the bearing beam by means of the matching of the clamping strip and the guide groove, namely, the cover plate mechanism cannot fly away from the hole due to the impact.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the inventive embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
Fig. 1 is a schematic overall structure diagram of a civil air defense opening blocking device provided by an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a rotor in the civil air defense opening plugging device provided by the embodiment of the invention.
Fig. 3 is a view from E-E of fig. 2.
Fig. 4 is a view from a-a of fig. 1.
Fig. 5 is a view from a-a of fig. 1.
Fig. 6 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 7 is a sectional view taken along line D-D 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-a pin shaft; 121-ear plate; 13-a guide groove; 131-a strip; 14-a pull rod; 20-a support mechanism; 21-a carrier beam; 211-a roller; 212-a card strip; 22-a set of telescopic rods; 23-a gearbox; 24-a drive shaft; 25-a first hand wheel; 30-a storage mechanism; 31-a rotor; 311-a stent; 3111-embedding grooves; 312-an ontology; 32-a support; 40-a pulling mechanism; 41-a chain; 411-connecting plate; 42-a sprocket; 43-a second hand wheel; 44-a guide wheel; 100-civil defense opening; 200-space; 300-wall.
Detailed Description
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
As shown in fig. 1 to 8, an embodiment of the present invention discloses a civil air defense opening 100 plugging device, which comprises: a support mechanism 20, a cover plate mechanism 10, a storage mechanism 30, and a pulling mechanism 40. Wherein: the cover plate mechanism 10 is used for blocking the civil air defense opening 100; the supporting mechanism 20 is used for supporting the cover plate mechanism 10 to keep the cover plate mechanism at the height for blocking the hole; the pulling mechanism 40 is used for pulling the cover plate mechanism 10 to move the cover plate mechanism 10 to a position for plugging the people's air defense hole 100 and hiding from the people's air defense hole 100 to open the people's air defense hole 100; the storage mechanism 30 is used for storing the cover plate mechanism 10 hidden from the people's air defense opening 100.
As shown in fig. 1 and 4, the support mechanism 20 specifically includes: carrier beam 21, telescopic rod group 22, gear box 23, transmission shaft 24 and first hand wheel 25. The two bearing beams 21 are arranged in parallel and horizontally at the position of the civil air defense opening 100 enclosed by the wall 300; the four telescopic rod groups 22 comprise four telescopic rod groups, every two of the four telescopic rod groups 22 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 which is engaged by a bevel gear 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 group 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 box 23, so that the transmission shaft 24 can be driven to rotate synchronously by rotating the first hand wheel 25, and the four telescopic rod sets 22 are driven synchronously by the gear boxes 23.
The telescopic rod group 22 comprises a rod body positioned at the upper part and a pipe body positioned at the lower part which are sleeved; form screw drive between the body of rod and the body, through rotating first hand wheel 25, borrow the transmission of borrowing gear box 23 and transmission shaft 24 and drive the body and rotate, and then make telescopic link group 22 can stretch out and draw back, and then drive the synchronous lift of two carrier bars 21.
As shown in fig. 1, the cover mechanism 10 is a component for blocking the man-proof hole 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 the 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 located outside the two rows of pin shafts 12. Each guide groove 13 is formed in sections in the bottom of each cover unit 11, as shown in fig. 6 and 8, each guide groove 13 being defined by oppositely disposed slats 131 that are fixed to the bottom of the cover unit 11 by screws. The cross section of the guide groove 13 surrounded by the two strips 131 is a structure with a small groove opening and a large groove cavity.
More specifically, two guide grooves 13 are located opposite to the carrier beams 21, and a plurality of rollers 211 are installed on each carrier beam 21 at intervals along the arrangement direction of the cover units 11 (or along the length direction of the carrier beam 21), so that each cover unit 11 is supported by the rollers 211, and the rollers 211 can guide the grooves 13 to run in the guide grooves 13. A plurality of clamping strips 212 are further fixed on each of the carrier beams 21 at intervals along the arrangement direction of the cover plate unit 11, and the plurality of clamping strips 212 and the plurality of rollers 211 are located in the same column, for example, the clamping strips 212 and the rollers 211 can be alternately arranged in the arrangement direction of the cover plate unit 11. As shown in fig. 6, the cross section of the clip strip 212 is "i" shaped, and the upper portion of the clip strip 212 is located in the guide groove 13.
The pulling mechanism 40 is used for limiting the cover plate mechanism 10 to separate the cover plate unit 11 from the carrier beam 21 in the vertical direction, and further limiting the separation of the whole cover plate mechanism 10 from the carrier beam 21, at this time, the upper portion of the clamping strip 212 is located in the guide groove 13 when the cover plate mechanism 10 is located on the carrier beam 21, that is, when the cover plate mechanism 10 is in the state of blocking the man-hole opening 100, the upper portion of the clamping strip 212 is located in the guide groove 13.
As shown in fig. 1, a rectangular space 200 is provided in advance in the side wall of the man-hole 100 in the arrangement direction of the cover unit 11, and the storage mechanism 30 is disposed in the space 200 such that the storage mechanism 30 is close to one end of the cover mechanism 10 in the arrangement direction. The receiving 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 on 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 located at the middle part and two sets of brackets 311 arranged on the body 312 at intervals, and the two sets of brackets 311 are respectively corresponding to the two pins 12 of the pivoting cover plate unit 11 at the horizontal position. The brackets 311 in the two sets of brackets 311 are circumferentially in one-to-one correspondence, wherein two opposite brackets 311 are connected to the end of the cover plate mechanism 10 through the 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 other opposite brackets 311 are each provided with an insertion groove 3111, and it can be understood that the insertion groove 3111 corresponds to the pin 12 in the transverse direction.
It should be noted that: the distance between the distal ends of two adjacent 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 cover mechanism 10 in a direction toward the receiving mechanism 30, the cover mechanism 10 moves toward the rotor 31 of the receiving mechanism 30 under the guidance of the guide groove 13, then the pin 12 for pivoting the cover unit 11 approaches the distal end of the bracket 311 and is then inserted into the insertion groove 3111, after the pin 12 located in front is inserted into the insertion groove 3111, the rear cover unit 11 pushes against the front cover unit 11, so that the front cover unit 11 is attached between the two brackets 311 by the cooperation of the pin 12 and the insertion groove 3111, and the pushing force of the rear cover unit 11 rotates the rotor 31 and then the rear cover unit 11 is attached to the other brackets 311 in the same manner, thereby finally all the cover units 11 are attached to the rotor 31, thereby realizing the winding of the rotor 31 on the cover mechanism 10, And (4) storage.
As will be readily appreciated, when the pulling mechanism 40 applies a force in the opposite direction to the cover plate mechanism 10, the pin 12 of the cover plate unit 11 in the cover plate mechanism 10 wound around the rotor 31 is sequentially disengaged from the embedding groove 3111, so that the rotor 31 gradually unfolds the cover plate mechanism 10, and the cover plate mechanism 10 moves over the bearing beam 21 to block the man-hole 100 again.
As shown in fig. 1, the pulling mechanism 40 specifically includes: a chain 40, a sprocket 42, a guide wheel 44 and a second hand wheel 43. The chain wheel 42 and the auxiliary device are fixed on the ground in the hole, the chain 40 is meshed with the chain wheel 42 on one hand, and is connected to a connecting plate 411 of the cover plate mechanism 10 on the other hand, the connecting plate 411 is arranged at one end of the cover plate mechanism 10 far away from the containing mechanism 30, and the second hand wheel 43 is connected to the chain wheel 42 through a reversing mechanism (a reversing mechanism such as the gear box 23 mentioned above) to drive the chain wheel 42 to rotate. In this way, the second wheel 43 is rotated to retract the chain 40, so as to drive the cover mechanism 10 to move, thereby opening or closing the man-hole opening 100 by the cover mechanism 10. And a guide pulley 44 is fixed to the carrier beam 21 for guiding the chain 40 and preventing the chain 40 from contacting other parts.
The above-mentioned pulling mechanism 40 pulls the cover mechanism 10 in a similar manner to the pulling mechanism of a window curtain or the like, and will not be described in detail herein.
It should be noted that the purpose of driving the telescopic rod group 22 to extend and retract is:
when the cover plate mechanism 10 is in a state of blocking the civil air defense opening 100, the first hand wheel 25 is rotated to retract the telescopic rod group 22, so that the carrier beam 21 moves downwards, and the carrier beam 21 moving downwards drives the clamping strip 212 to be tensioned with the lower groove wall of the guide groove 13, so as to prevent the cover plate mechanism 10 from moving in the thickness direction when being impacted.
When the cover mechanism 10 needs to be stored and the man-proof hole 100 needs to be opened, the first hand wheel 25 is rotated reversely to move the bearing beam 21 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 mechanism 10.
The civil air defense opening 100 plugging device provided by the invention has the advantages that:
1. the cover plate mechanism 10 of the present invention is hidden at one side of the opening and not exposed on the ground outside the opening after the opening is opened.
2. The cover mechanism 10 is housed so as to be wound around the rotor 31, and does not require manual transportation or a crane.
3. The opening and closing of the deck mechanism 10 allows all operations to be performed in the underground space without any ground 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 strip 212 and the guiding groove 13, that is, the cover mechanism 10 is not lifted away from the hole due to the impact.
Moreover, although exemplary embodiments have been described herein, the scope of the present invention includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution 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 versions 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-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is 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 each other 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, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present 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 entrance;
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 accommodating mechanism is arranged in the pre-opened space on one side of the side wall of the civil air defense opening, the accommodating mechanism at least comprises a rotor, and one end of the cover plate mechanism, which is close to the accommodating mechanism, is connected to the rotor;
a pulling mechanism for pulling the cover mechanism such that:
the cover plate mechanism moves towards the direction of the containing mechanism, so that the pivoted cover plate units are wound on the rotor in sequence
And
the pivoted cover units wound on the rotor are successively unfolded, so that the cover mechanism moves to the bearing beam again.
2. The civil air defense orifice plugging device of claim 1 wherein the rotor comprises a centrally located body and at least one set of brackets circumferentially disposed on the body;
one end, close to the containing mechanism, of the cover plate mechanism is connected to the radial far end of one of the supports, and the radial far ends of the rest supports are provided with embedding grooves;
the two adjacent cover plate units are pivoted by a pin shaft, and the cover plate units are embedded in the embedding grooves through the pin shaft and are wound on the rotor.
3. The civil air defense opening plugging device of claim 1, wherein at least one set of rollers is arranged on the bearing beam, and at least one set of rollers is arranged along the arrangement direction of the cover plate units; the cover plate mechanism is positioned on the roller; wherein:
the cover plate mechanism is provided with a guide groove extending along the arrangement direction of the cover plate units, and the guide groove is formed at the bottom of each cover plate unit in a segmented mode; the roller runs in the guide groove.
4. The civil air-raid shelter device according to claim 3 wherein each of said guide channels is defined by oppositely disposed slats secured to the bottom of said cover units.
5. The civil air defense opening plugging device of claim 4, wherein a clamping strip is fixed on the bearing beam and extends into the guide groove; wherein:
the guide groove is matched with the clamping strip and is also used for limiting the cover plate mechanism and the bearing beam to be separated in the vertical direction.
6. The civil air defense portal occlusion device of claim 2,
the brackets comprise two groups, and the two groups of brackets are opposite and arranged at intervals;
every two adjacent cover plate units are pivoted through two pin shafts arranged at intervals;
the cover plate unit is respectively embedded in the embedding grooves of the two opposite supports through the two pin shafts and is wound on the rotor.
7. The civil air defense portal plugging device of claim 1, wherein the support mechanism further comprises a lifting mechanism;
the lifting mechanism comprises:
a telescopic rod set which is telescopic by screw transmission, wherein the upper end of the telescopic rod set is connected to the support beam;
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 and retract through the gear box.
8. The civil air defense orifice plugging device of claim 1 wherein said pulling mechanism comprises:
a chain for pulling the cover mechanism in a direction toward and away 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 of claim 2, wherein the cover plate mechanism is connected with the bracket by a pull rod.
10. The civil air defense opening plugging device of claim 1, wherein the load beam comprises two arranged in parallel.
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 true CN111877832A (en) | 2020-11-03 |
| CN111877832B CN111877832B (en) | 2024-09-24 |
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| CN202010880714.1A Active CN111877832B (en) | 2020-08-27 | 2020-08-27 | Civil air defense entrance to a cave plugging device |
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| CN111877832B (en) | 2024-09-24 |
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