CN215595388U - Reinforced concrete single-leaf protective door for civil air defense - Google Patents
Reinforced concrete single-leaf protective door for civil air defense Download PDFInfo
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- CN215595388U CN215595388U CN202122206213.8U CN202122206213U CN215595388U CN 215595388 U CN215595388 U CN 215595388U CN 202122206213 U CN202122206213 U CN 202122206213U CN 215595388 U CN215595388 U CN 215595388U
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- air defense
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Abstract
The utility model relates to the technical field of protective doors, and discloses a reinforced concrete single-leaf protective door for civil air defense, which comprises a square frame, a locking mechanism and a limiting mechanism, wherein a square door plate is arranged in the square frame, and a hollow concrete box is arranged on the back surface of the square door plate in the square frame; the middle part of the front of the square door plate is provided with a fixed bearing, a linkage shaft is inserted in the fixed bearing, a plurality of locking mechanisms are uniformly distributed on the periphery of the linkage shaft on the front of the square door plate, the linkage shaft is provided with a limiting mechanism, and the front end part of the linkage shaft is provided with a wheel disc. The utility model solves the problems of untight sealing and inconvenient opening and closing of the protective door through the matching use of all mechanisms, has compact integral structural design, increases the performance of the protective door and facilitates the rapid opening and closing operation of the protective door.
Description
Technical Field
The utility model relates to the technical field of protective doors, in particular to a reinforced concrete single-leaf protective door for civil air defense.
Background
The civil air defense engineering is also an underground protective building which is independently built for guaranteeing personnel and material shielding, civil air defense command and medical aid in wartime and is built by combining ground buildings, can be used for an air defense basement in wartime, and is an important facility for preventing enemy from attacking suddenly, effectively shielding personnel and material and storing war potential.
However, the existing protective door has the following disadvantages: 1. because the protective door has poor protective performance, the protective door is easy to damage due to external impact, so that the protective door cannot be effectively matched with a door frame for sealing; 2. when the protective door is locked and fastened with the door frame, the protective door is usually fixed in a mechanical linkage mode, and the existing mechanical linkage structure is complex in operation and inconvenient for people to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides a reinforced concrete single-leaf protective door for civil air defense.
In order to solve the problems in the prior art, the utility model adopts the following technical scheme:
the reinforced concrete single-leaf protective door for the civil air defense comprises a square frame, a locking mechanism and a limiting mechanism, wherein a square door plate is arranged in the square frame, and a hollow concrete box is arranged on the back surface of the square door plate in the square frame; the square door plate is characterized in that a fixed bearing is arranged in the middle of the front of the square door plate, a linkage shaft is inserted into the fixed bearing, a plurality of locking mechanisms are uniformly distributed on the periphery of the linkage shaft on the front of the square door plate, a limiting mechanism is arranged on the linkage shaft, and a wheel disc is arranged at the front end of the linkage shaft.
Furthermore, a pair of double-lug seats is arranged on one side of the front face of the square frame, a pair of single-lug seats is arranged on one side of the front face of the square door plate, and each double-lug seat is movably hinged with the corresponding single-lug seat through a hinge pin shaft.
Furthermore, a sealing outer ring is arranged on the inner wall of the square frame, a sealing inner ring is arranged on the outer wall of the square door plate, and the sealing inner ring is matched with the sealing outer ring and abutted tightly.
Furthermore, a plurality of reinforcing steel bars are arranged in the hollow concrete box, and concrete is filled in the hollow concrete box between the gaps of the reinforcing steel bars.
Furthermore, the locking mechanism comprises lead screws and positioning blocks, linkage bearings are uniformly arranged on the periphery of the linkage shaft in the front of the square door plate, the lead screws are inserted into the linkage bearings, the outer end of each lead screw is sleeved with a screw tube, the outer end of each screw tube is provided with a positioning block, the middles of four sides of the front of the square frame are provided with positioning channel steel, and each positioning block is inserted into the positioning channel steel in a matched mode.
Furthermore, the inner end of each lead screw is provided with a second bevel gear, the middle of the linkage shaft is sleeved with a first bevel gear, and the first bevel gear is sequentially meshed with the second bevel gear.
Further, a pair of sliding grooves are formed in the front face of the square door plate and located on the two sides of the lead screw, a pair of sliding blocks are arranged at the inner end of the wire barrel, and each sliding block is clamped in the corresponding sliding groove in a sliding mode.
Further, stop gear includes toothed disc, spacing lug, the bottom portion cover of universal driving shaft is equipped with toothed disc, is located and is equipped with a plurality of square pinhole between the adjacent universal driving bearing in the front of square door plant, every square pole, every are equipped with square pole, every square pole's outer end all is equipped with spacing lug, every the most advanced of spacing lug all supports tightly on toothed disc.
Compared with the prior art, the utility model has the beneficial effects that:
1. the protective performance of the square door plate is improved by using the steel bars in cooperation with concrete, and the sealing inner ring is matched and abutted with the sealing outer ring, so that the sealing performance of the square frame and the square door plate is improved;
2. through locking mechanism cooperation stop gear's use, drive the locating piece and all cooperate and insert and establish in the location channel-section steel, carry out spacing lock to the square door plant, the most advanced of tight spacing lug all supports tightly at the toothed disc, avoids the universal driving shaft to take place antiport's phenomenon, has further increased the stability of square door plant locking.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
FIG. 1 is a front view of the present invention;
FIG. 2 is a front sectional view of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;
FIG. 4 is a top view of a square door panel according to the present invention;
FIG. 5 is a front view of a square frame of the present invention;
FIG. 6 is a front view of a square door panel of the present invention;
FIG. 7 is a rear sectional view of the hollow concrete box of the present invention;
FIG. 8 is a schematic cross-sectional view of a spacing mechanism of the present invention;
number in the figure: the device comprises a square frame 1, a double lug seat 11, a single lug seat 12, a sealing outer ring 13, a sealing inner ring 14, a positioning channel steel 15, a hollow concrete box 16, a reinforcing steel bar 17, concrete 18, a square door panel 2, a universal driving shaft 21, a square rod 22, a limiting bump 23, a first bevel gear 24, a wheel disc 25, a gear disc 26, a universal driving bearing 3, a lead screw 31, a second bevel gear 32, a wire barrel 33, a positioning block 34, a sliding groove 35 and a sliding block 36.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1: the embodiment provides a reinforced concrete single-leaf protective door for civil air defense, and specifically comprises a square frame 1, a locking mechanism and a limiting mechanism, wherein the square frame 1 is pre-embedded in a wall body, an inward opening door is adopted, a square door plate 2 which is movably hinged is arranged in the square frame 1, and a hollow concrete box 16 is arranged in the square frame 1 and on the back of the square door plate 2; the middle part of the front of the square door plate 2 is provided with a fixed bearing, a linkage shaft 21 is inserted in the fixed bearing, a plurality of locking mechanisms are uniformly distributed on the front of the square door plate 2 and positioned around the linkage shaft 21, the linkage shaft 21 is provided with a limiting mechanism, and the front end part of the linkage shaft 21 is provided with a wheel disc 25.
In the utility model, one side of the front surface of the square frame 1 is provided with a pair of double-lug seats 11, one side of the front surface of the square door panel 2 is provided with a pair of single-lug seats 12, and each double-lug seat 11 is movably hinged with the corresponding single-lug seat 12 through a hinge pin shaft, so that the square frame 1 and the square door panel 2 are conveniently movably hinged.
In the utility model, the inner wall of the square frame 1 is provided with the sealing outer ring 13, the outer wall of the square door panel 2 is provided with the sealing inner ring 14, and the sealing inner ring 14 is matched and tightly propped against the sealing outer ring 13, so that the sealing performance of the square frame 1 and the square door panel 2 is improved.
In the utility model, a plurality of uniformly arranged reinforcing steel bars 17 are arranged in the hollow concrete box 16, concrete 18 is filled in the hollow concrete box 16 between the gaps of the reinforcing steel bars 17, and the reinforcing steel bars 17 are matched with the concrete 18, so that the protective performance of the square door plate 2 is improved.
The locking mechanism comprises a lead screw 31 and positioning blocks 34, linkage bearings 3 are uniformly arranged on the periphery of a linkage shaft 21 and on the front face of a square door plate 2, the lead screw 31 is inserted into each linkage bearing 3, a screw tube 33 is sleeved on the outer end portion of each lead screw 31, a positioning block 34 is arranged on the outer end portion of each screw tube 33, positioning channel steel 15 is arranged in the middle of each of the four sides of the front face of a square frame 1, each positioning block 34 is inserted into the positioning channel steel 15 in a matched mode, the lead screws 31 are matched with the screw tubes 33 to rotate in a spiral mode, the screw tubes 33 and the positioning blocks 34 are driven to slide outwards, the positioning blocks 34 are driven to be inserted into the positioning channel steel 15 in a matched mode, and therefore the square door plate 2 is locked in a limiting mode.
In the utility model, the inner end of each lead screw 31 is provided with a second bevel gear 32, the middle part of the linkage shaft 21 is sleeved with a first bevel gear 24, the first bevel gear 24 is sequentially meshed with the second bevel gears 32, and when the linkage shaft 21 drives the first bevel gears 24 to rotate, the second bevel gears 32 and the lead screws 31 are conveniently driven to synchronously rotate by meshing.
In the utility model, the front surface of the square door plate 2 at two sides of the screw 31 is provided with a pair of sliding grooves 35, the inner end part of the wire barrel 33 is provided with a pair of sliding blocks 36, each sliding block 36 is clamped in the corresponding sliding groove 35 in a sliding way, and the sliding blocks 36 slide along the sliding grooves 35, thereby being convenient for forming a limiting effect on the wire barrel 33.
Example 2: in embodiment 1, there is also a problem that the universal driving shaft is inverted, so that this embodiment further includes, on the basis of embodiment 1:
in the utility model, the limiting mechanism comprises a gear disc 26 and limiting lugs 23, the gear disc 26 is sleeved at the bottom end part of the linkage shaft 21, a plurality of square pin holes are uniformly distributed on the front surface of the square door plate 2 between the adjacent linkage bearings 3, a square rod 22 connected in a plugging manner is inserted into each square pin hole, the limiting lug 23 is arranged at the outer end of each square rod 22, and the tip end of each limiting lug 23 is tightly abutted against the gear disc 26, so that the phenomenon of reverse rotation of the linkage shaft 21 is avoided.
Example 3: when the utility model is used specifically, the operation steps are as follows:
firstly, when the door is closed, the wheel disc 25 is pushed to drive the square door panel 2 and the hollow concrete box 16, under the hinging action of the double lug seats 11 matched with the single lug seats 12, the back surface of the hollow concrete box 16 penetrates through the square frame 1 and is placed in parallel with the back side surface of the square frame 1, and the sealing inner ring 14 is driven to be matched and abutted with the sealing outer ring 13, so that the sealing performance of the square frame 1 and the square door panel 2 is improved;
step two, respectively pulling out each square rod 22 to separate the limiting bump 23 from the gear disc 26, rotating the wheel disc 25 to drive the linkage shaft 21 and the first bevel gear 24 to synchronously rotate, meshing to drive the second bevel gear 32 and the lead screw 31 to synchronously rotate, spirally rotating the lead screw 31 in cooperation with the wire barrel 33 to drive the wire barrel 33, the positioning block 34 and the sliding block 36 to outwards slide along the sliding groove 35, and driving the positioning block 34 to be inserted into the positioning channel steel 15 in a matching manner, so that the square door panel 2 is limited and locked;
and thirdly, inserting each square rod 22 into the corresponding square hole, so that the tip end of each limit bump 23 is tightly abutted against the gear disc 26, the phenomenon that the universal driving shaft 21 rotates reversely is avoided, and the locking stability of the square door panel 2 is further improved.
The utility model solves the problems of untight sealing and inconvenient opening and closing of the protective door through the matching use of all mechanisms, has compact integral structural design, increases the performance of the protective door and facilitates the rapid opening and closing operation of the protective door.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (8)
1. A reinforced concrete single leaf guard gate for people's air defense, including square frame (1), locking mechanism, stop gear, its characterized in that: a square door plate (2) is arranged in the square frame (1), and a hollow concrete box (16) is arranged on the back of the square door plate (2) in the square frame (1); the square door plate is characterized in that a fixed bearing is arranged in the middle of the front of the square door plate (2), a linkage shaft (21) is inserted into the fixed bearing, a plurality of locking mechanisms are uniformly distributed on the periphery of the linkage shaft (21) on the front of the square door plate (2), a limiting mechanism is arranged on the linkage shaft (21), and a wheel disc (25) is arranged at the front end of the linkage shaft (21).
2. The reinforced concrete single-leaf protective door for the civil air defense as claimed in claim 1, wherein: the door is characterized in that a pair of double-lug seats (11) are arranged on one side of the front face of the square frame (1), a pair of single-lug seats (12) are arranged on one side of the front face of the square door plate (2), and each double-lug seat (11) is movably hinged with the corresponding single-lug seat (12) through a hinge pin shaft.
3. The reinforced concrete single-leaf protective door for the civil air defense as claimed in claim 1, wherein: the inner wall of the square frame (1) is provided with a sealing outer ring (13), the outer wall of the square door panel (2) is provided with a sealing inner ring (14), and the sealing inner ring (14) is matched with the sealing outer ring (13) and abutted against the sealing outer ring.
4. The reinforced concrete single-leaf protective door for the civil air defense as claimed in claim 1, wherein: a plurality of reinforcing steel bars (17) are arranged in the hollow concrete box (16), and concrete (18) is filled in the hollow concrete box (16) between gaps of the reinforcing steel bars (17).
5. The reinforced concrete single-leaf protective door for the civil air defense as claimed in claim 1, wherein: the locking mechanism comprises a lead screw (31) and positioning blocks (34), linkage bearings (3) are uniformly arranged on the periphery of a linkage shaft (21) in the front of a square door plate (2), the lead screw (31) is inserted into the linkage bearings (3), a wire barrel (33) is sleeved on the outer end of the lead screw (31), each positioning block (34) is arranged on the outer end of the wire barrel (33), positioning channel steel (15) are arranged in the middle of four sides of the front of a square frame (1), and each positioning block (34) is matched and inserted into the positioning channel steel (15).
6. The reinforced concrete single-leaf protective door for the civil air defense as claimed in claim 5, wherein: each lead screw (31) is provided with a second bevel gear (32) at the inner end, a first bevel gear (24) is sleeved at the middle part of the linkage shaft (21), and the first bevel gear (24) is sequentially meshed with the second bevel gear (32).
7. The reinforced concrete single-leaf protective door for the civil air defense as claimed in claim 5, wherein: the two sides of the lead screw (31) are provided with a pair of sliding grooves (35) in the front face of the square door plate (2), the inner end of the wire barrel (33) is provided with a pair of sliding blocks (36), and each sliding block (36) is clamped in the corresponding sliding groove (35) in a sliding mode.
8. The reinforced concrete single-leaf protective door for the civil air defense as claimed in claim 1, wherein: stop gear includes toothed disc (26), spacing lug (23), the bottom portion cover of universal driving shaft (21) is equipped with toothed disc (26), is located between adjacent linkage bearing (3) and is equipped with a plurality of square pinhole, every in the front of square door plant (2) square pole (22), every are all inserted to the inside of square pinhole and are equipped with square pole (22), every the outer end of square pole (22) all is equipped with spacing lug (23), every the most advanced of spacing lug (23) all supports tightly on toothed disc (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122206213.8U CN215595388U (en) | 2021-09-13 | 2021-09-13 | Reinforced concrete single-leaf protective door for civil air defense |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122206213.8U CN215595388U (en) | 2021-09-13 | 2021-09-13 | Reinforced concrete single-leaf protective door for civil air defense |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215595388U true CN215595388U (en) | 2022-01-21 |
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ID=79885655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122206213.8U Active CN215595388U (en) | 2021-09-13 | 2021-09-13 | Reinforced concrete single-leaf protective door for civil air defense |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215595388U (en) |
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2021
- 2021-09-13 CN CN202122206213.8U patent/CN215595388U/en active Active
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