Anti-explosion civil air defense door structure with high sealing performance

Abstract

The utility model relates to the technical field of civil air defense doors, and discloses an anti-explosion civil air defense door structure with high sealing performance, which comprises a door frame and a door plate, a first mounting seat and a second mounting seat are respectively and fixedly mounted on the front side of the door frame, and a rotating shaft capable of sliding up and down is rotatably mounted between the first mounting seat and the second mounting seat; the door plate is fixedly connected with the rotating shaft; a hydraulic jack is fixedly mounted in the first mounting seat, the telescopic end of the hydraulic jack is in movable contact with the bottom end of the rotating shaft, a connecting sleeve is fixedly mounted in the second mounting seat, and the top end of the rotating shaft is slidably inserted into the connecting sleeve. According to the anti-explosion civil air defense door structure, the door plate and the door frame are rotationally connected through the rotating shaft, the first mounting base and the second mounting base, the rotating shaft can ascend and descend, after the door plate is closed, the rotating shaft moves downwards, a gap between the lower surface of the door plate and the ground is reduced, convenience is provided for sealing, and the rotating shaft moves upwards, so that the sealing effect is good. The door plate is lifted, so that the door plate is more convenient to open.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of civil air defence door, concretely to a high sealing property's explosion -proof civil air defence door structure. BACKGROUND

[0002] The explosion -proof civil air defence door is used in the protection airtight door of civil air defence engineering mouth part, not only can resist shock wave, can also resist toxic gas, in order to improve its sealing property, in the prior art, the patent file with the announcement number CN114541941B discloses a high sealing property's heat -proof civil air defence door structure, including door body and door frame, the side of door body sliding connection has sealing edge block, the door frame has the sealing groove for the sealing edge block embedding, the door body is provided with the power element for driving sealing edge block embedding or separating from sealing groove. The application has the following effects: using power element drives sealing edge block to move, will make sealing edge block embed into sealing groove, add a bending sealing edge, increase the overall sealing property.

[0003] The explosion -proof civil air defence door is generally made of thick steel plate, and is heavy, and the lower side of the door plate needs to be reserved with sufficient gap from the ground to facilitate the rotation opening and closing of the door plate, and the size of the gap and the flatness of the ground have great relationship, and the existence of the gap makes it difficult to achieve good sealing effect, based on this, the existing explosion -proof civil air defence door has the problem of poor sealing effect, and further improvement is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a high sealing property's explosion -proof civil air defence door structure to solve the problems in the above background.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a high sealing property's explosion -proof civil air defence door structure, including door frame and door plate, the front side of door frame is respectively fixedly installed with first mounting seat and second mounting seat, and the first mounting seat and the second mounting seat are rotatably installed with the rotating shaft that can slide up and down, and the door plate is fixedly connected with the rotating shaft.

[0006] The first mounting seat is fixedly installed with the hydraulic jack, the telescopic end of the hydraulic jack is in movable contact with the bottom end of the rotating shaft, the second mounting seat is fixedly installed with the connecting sleeve, the top end of the rotating shaft is slidably inserted into the connecting sleeve, the upper surface of the connecting sleeve is provided with an inclined surface, the surface of the rotating shaft is fixedly installed with a guide pin, and the guide pin can slide along the inclined surface.

[0007] In some embodiments, the upper surface of the connecting sleeve is provided with a first plane and a second plane, the first plane is higher than the second plane in the vertical direction, and the surface of the inclined surface smoothly transitions with the first plane and the second plane, so that the door plate can be kept at a fixed angle when the guide pin rests on the first plane or the second plane.

[0008] In some embodiments, a control pedal is mounted on the inner side of the door frame, and the extension and retraction of the hydraulic jack are controlled through the control pedal, thereby facilitating the control of the hydraulic jack.

[0009] In some embodiments, a fixed sleeve is fixedly mounted on the inner side of the door plate, a locking pin is slidingly mounted in the fixed sleeve, a rotating disc is rotatably mounted on the inner side of the door plate, a handle is fixedly mounted on the end of the rotating disc, a connecting rod is rotatably mounted on the surface of the rotating disc, the end of the connecting rod away from the rotating disc is rotatably connected with the end of the locking pin, an installation hole is formed in the surface of the door plate, a telescopic pin is slidingly mounted in the installation hole, a return spring is arranged in the installation hole to abut against the telescopic pin outward, and the end of the telescopic pin abuts against the end surface of the rotating disc.

[0010] In some embodiments, the first mounting seat is embedded in the ground, a door sill plate is fixedly mounted on the ground directly below the door frame, the upper surface of the door sill plate is flush with the ground, the inner wall of the door frame and the surface of the door sill plate are both provided with an insertion hole, and the end of the locking pin can extend into the insertion hole to lock the door.

[0011] In some embodiments, a first sealing strip is fixedly mounted on the inner surface of the door plate, and a second sealing strip is fixedly mounted on the lower surface of the door plate.

[0012] Advantages

[0013] The utility model provides a high sealing high's anti -explosion civil air defense door structure has the following advantages:

[0014] 1. The anti -explosion civil air defense door structure, the connection of door plate and door frame is through rotating shaft and first mounting seat, second mounting seat rotatory connection, and rotating shaft can go up and down and move, when the door plate is closed, rotating shaft moves down, make the clearance of the lower surface of the door plate and ground reduce, provide the convenience for sealing, and, rotating shaft moves up, raise the height of door plate, make the door plate open more convenient.

[0015] 2. The anti -explosion civil air defense door structure sets up the connecting sleeve in the second mounting seat, and the upper end of connecting sleeve sets up the inclined surface, the process of closing door plate, rotating shaft rotates, and under the action of the self -weight of door plate, guide pin slides along the inclined surface, make closing door plate more laborsaving, fast, solve the problem that door plate is heavy, and close is laborious. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The utility model discloses a three-dimensional structure schematic diagram.

[0017] Figure 2 For Figure 1 The enlarged structure schematic diagram of the middle A place shows that the utility model discloses a first plane 10 and second plane 11 are arranged on the door frame 1, and the first plane 10 and second plane 11 are perpendicular.

[0018] Figure 3 The utility model discloses a rear view structure schematic diagram.

[0019] Figure 4 The utility model discloses a front view structure schematic diagram.

[0020] Figure 5 The utility model discloses a door panel side section structure schematic diagram.

[0021] In the drawing: 1 door frame, 2 door panel, 3 first mounting seat, 4 second mounting seat, 5 rotating shaft, 6 hydraulic jack, 7 connecting sleeve, 8 guide pin, 9 inclined plane, 10 first plane, 11 second plane, 12 control pedal, 13 fixed sleeve, 14 lock pin, 15 rotating disc, 16 handle, 17 connecting rod, 18 extension pin, 19 return spring, 20 door sill plate, 21 inserting hole, 22 first sealing strip, 23 second sealing strip. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the range of protection of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides a technical scheme: an anti -explosion civil defense door structure that high tightness, including door frame 1 and door panel 2, the front side of door frame 1 is fixedly installed with first mounting seat 3 and second mounting seat 4 respectively, and first mounting seat 3 and second mounting seat 4 are rotatably installed with the rotating shaft 5 that can slide up and down, and door panel 2 is fixedly connected with rotating shaft 5.

[0024] The utility model discloses a hydraulic jack 6 is fixedly installed in first mounting seat 3, and the telescopic end of hydraulic jack 6 is in movable contact with the bottom end of rotating shaft 5, and connecting sleeve 7 is fixedly installed in second mounting seat 4, and the top end of rotating shaft 5 is slidably inserted into connecting sleeve 7, and the upper surface of connecting sleeve 7 is provided with inclined plane 9, and guide pin 8 is fixedly installed on the surface of rotating shaft 5, and guide pin 8 can slide along inclined plane 9.

[0025] Specifically, as Figure 2As shown, the upper surface of the connecting sleeve 7 is provided with a first plane 10 and a second plane 11, the first plane 10 is higher than the second plane 11 in the vertical direction, the surface of the inclined plane 9 is smoothly transitioned with the first plane 10 and the second plane 11, when the door panel 2 is closed, the rotating shaft 5 rotates, the guide pin 8 can slide from the first plane 10 along the inclined plane 9 and fall on the second plane 11.

[0026] The inner side of the door frame 1 is provided with a control pedal 12, and the extension and retraction of the hydraulic jack 6 is controlled through the control pedal 12.

[0027] Wherein, referring to Figure 3 , the inner side of the door panel 2 is fixedly provided with a fixed sleeve 13, the fixed sleeve 13 is slidably provided with a locking pin 14, the inner side of the door panel 2 is rotatably provided with a rotating disc 15, the end of the rotating disc 15 is fixedly provided with a handle 16, the surface of the rotating disc 15 is rotatably provided with a connecting rod 17, and the end of the connecting rod 17 away from the rotating disc 15 is rotatably connected with the end of the locking pin 14.

[0028] Referring to Figure 5 , the surface of the door panel 2 is provided with a mounting hole, the mounting hole is slidably provided with a telescopic pin 18, the mounting hole is provided with a return spring 19 outwardly abutting against the telescopic pin 18, and the end of the telescopic pin 18 abuts against the end face of the rotating disc 15.

[0029] The first mounting seat 3 is embedded in the ground, and the door sill plate 20 is fixedly installed on the ground directly below the door frame 1, the upper surface of the door sill plate 20 is flush with the ground, the inner wall of the door frame 1 and the surface of the door sill plate 20 are both provided with an inserting hole 21, the handle 16 is rotated, the telescopic action of the locking pin 14 is driven through the transmission of the connecting rod 17, and the end of the locking pin 14 can be inserted into the inserting hole 21.

[0030] The inner surface of the door panel 2 is fixedly provided with a first sealing strip 22, and the two ends of the first sealing strip 22 extend to the upper edge and the side edge of the surface of the door panel 2. Figure 1 As shown, the lower surface of the door panel 2 is fixedly provided with a second sealing strip 23.

[0031] In the use process, when the door panel 2 is closed, an initial rotating force is applied to the door panel 2, the rotating shaft 5 rotates by a certain angle, referring to Figure 2 , the guide pin 8 slides to the surface of the inclined plane 9, under the action of the weight of the door panel 2, the guide pin 8 slides along the inclined plane 9 to the second plane 11, and the rotating closing of the door panel 2 is automatically realized, at the same time, due to the certain distance between the second plane 11 and the first plane 10, the height of the door panel 2 is lowered until the door panel 2 falls on the upper surface of the door sill plate 20, so that the door panel 2 and the door sill plate 20 clamp the second sealing strip 23, after the locking pin 14 is inserted into the inserting hole 21, the door panel 2 and the door frame 1 clamp the first sealing strip 22, and the sealing closing of the door panel 2 is realized;

[0032] When it is necessary to open door panel 2, the user presses down on control pedal 12 to inject hydraulic oil into hydraulic jack 6. The telescopic end of hydraulic jack 6 extends upwards. (Refer to...) Figure 4 The lifting and rotating shaft 5 raises the height of the door panel 2. As the gap between the door panel 2 and the ground increases, it avoids being blocked by the ground and makes opening easier. The height of the guide pin 8 rises, and at this time, the door panel 2 is pushed to rotate and open. As the door panel 2 rotates, the guide pin 8 rotates to the upper side of the first plane 10. The hydraulic jack 6 is then depressurized, causing the guide pin 8 to fall onto the first plane 10.

[0033] The explosion-proof personnel protection door structure, by setting a connecting sleeve 7 in the second mounting base 4, and setting an inclined surface 9 at the upper end of the connecting sleeve 7, when closing the door panel 2, the rotating shaft 5 rotates, and at the same time, under the action of the door panel 2's own weight, the guide pin 8 slides along the inclined surface 9, making closing the door panel 2 easier and faster, and solving the problem of the door panel 2 being bulky and difficult to close.

[0034] The door panel 2 and the door frame 1 are connected by a rotating shaft 5 and the first mounting base 3 and the second mounting base 4. The rotating shaft 5 can move up and down. When the door panel 2 is closed, the rotating shaft 5 moves downward, which reduces the gap between the lower surface of the door panel 2 and the ground, thus facilitating sealing. Moreover, the rotating shaft 5 is hydraulically pushed upward to raise the height of the door panel 2, making it easier to open the door panel 2. Because the door panel 2 is very heavy, it is very difficult to make the guide pin 8 slide upward along the inclined surface 9 when opening the door panel 2.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-sealing anti-explosion civil defense door structure comprising a door frame (1) and a door panel (2), characterized in that: The front side of the door frame (1) is respectively fixedly provided with a first mounting seat (3) and a second mounting seat (4), a rotating shaft (5) capable of sliding up and down is rotatably arranged between the first mounting seat (3) and the second mounting seat (4), and a door plate (2) is fixedly connected with the rotating shaft (5). A hydraulic jack (6) is fixedly arranged in the first mounting seat (3), the telescopic end of the hydraulic jack (6) is in movable contact with the bottom end of the rotating shaft (5), a connecting sleeve (7) is fixedly arranged in the second mounting seat (4), the top end of the rotating shaft (5) is slidably inserted into the connecting sleeve (7), an inclined surface (9) is arranged on the upper surface of the connecting sleeve (7), and a guide pin (8) is fixedly arranged on the surface of the rotating shaft (5) and can slide along the inclined surface (9).

2. The blast door structure of claim 1, wherein: The upper surface of the connecting sleeve (7) is provided with a first plane (10) and a second plane (11), the first plane (10) is higher than the second plane (11) in the vertical direction, and the surface of the inclined surface (9) smoothly transitions to the first plane (10) and the second plane (11).

3. The blast door structure of claim 2, wherein: A control pedal (12) is arranged on the inner side of the door frame (1), and the telescopic action of the hydraulic jack (6) is controlled through the control pedal (12).

4. The blast door structure of claim 3, wherein: A fixed sleeve (13) is fixedly arranged on the inner side of the door plate (2), and a lock pin (14) is slidably arranged in the fixed sleeve (13).

5. The blast door structure of claim 4, wherein: A rotating disc (15) is rotatably arranged on the inner side of the door plate (2), a handle (16) is fixedly arranged on the end of the rotating disc (15), a connecting rod (17) is rotatably arranged on the surface of the rotating disc (15), and one end of the connecting rod (17) away from the rotating disc (15) is rotatably connected with the end of the lock pin (14).

6. The blast door structure of claim 5, wherein: An installation hole is arranged on the surface of the door plate (2), a telescopic pin (18) is slidably arranged in the installation hole, a return spring (19) is arranged in the installation hole and abuts against the telescopic pin (18) outward, and the end of the telescopic pin (18) abuts against the end surface of the rotating disc (15).

7. The blast door structure of claim 6, wherein: The first mounting seat (3) is embedded in the ground, a threshold plate (20) is fixedly arranged on the ground directly below the door frame (1), the upper surface of the threshold plate (20) is flush with the ground, and the inner wall of the door frame (1) and the surface of the threshold plate (20) are both provided with an insertion hole (21), and the end of the lock pin (14) can extend into the insertion hole (21).

8. The blast door structure of claim 7, wherein: A first sealing strip (22) is fixedly arranged on the inner surface of the door plate (2), and a second sealing strip (23) is fixedly arranged on the lower surface of the door plate (2).

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