A kind of airtight casing plugging device for civil air defense

Abstract

The utility model provides a sealing device for a closed casing of a civil air defense, including a closed casing of a civil air defense, a flange fixedly connected to the side wall at the end of the closed casing of the civil air defense, and a sealing structure, wherein the sealing structure is arranged at the end of the closed casing of the civil air defense. The fixing frame can be elastically adjusted according to the diameter of the closed casing of the civil air defense that needs to be blocked, so that the side wall of the fixing frame fits on the side wall of the closed casing of the civil air defense, and the handle frame is rotated to drive the fixing frame to move toward the flange, and the flange is tightly clamped in cooperation with the sealing plate, so that the sealing pad tightly blocks the end of the closed casing of the civil air defense, which is convenient for better application to the blocking of closed casings of different sizes of civil air defense, so that the sealing device is flexible to use as a whole, and is clamped into the corresponding clamping groove by the clamping rod, so as to better limit the connection block, and avoid the connection block from rotating, causing the fixing frame to move, and failing to clamp the flange well.

Description

Technical Field

[0001] The utility model relates to a closed casing plugging device for civil air defense. Background Art

[0002] Airtight casing for civil air defense is also called airtight waterproof casing, airtight casing and protective airtight casing. It is a pre-buried pipe fitting mainly used for metal pipes. It is mainly used in civil air defense water supply and drainage projects. Its function is to solve the problem that some underground projects need pipes to pass through walls, and some structures need pipes to pass through walls.

[0003] Among the existing utility models in China, the publication number CN210566725U discloses a new type of civil air defense casing plugging device, including a civil air defense pipe pre-buried in the civil air defense wall, with both ends of the civil air defense pipe extending outside the wall respectively, and flanges are arranged on the civil air defense pipe and at both ends of the civil air defense pipe. The flanges are sleeved and fixedly connected to the civil air defense pipe, and also include a flange blind plate arranged in cooperation with the flanges, and the flange blind plates are provided with fixing parts for fixing the flanges and the flange blind plates. The utility model has the effect of being easy to install and disassemble and can reduce material waste.

[0004] Referring to the above-mentioned novel civil air defense casing plugging device, the plugging device plugs the civil air defense casing through a flange and a flange blind plate. In order to make the flange blind plate better fixed and plugged on the civil air defense casing, the threaded holes on the flange blind plate must correspond to the positions of the threaded holes on the civil air defense casing. This makes the plugging device only plug civil air defense casings of fixed sizes, which makes the use of the plugging device subject to certain limitations and inflexible. Therefore, how to better apply to the plugging of civil air defense closed casings of different sizes is an important issue that needs to be solved in the design of civil air defense closed casing plugging devices. Utility Model Content

[0005] The utility model provides a civil airtight sleeve blocking device to solve the problem of better blocking of civil airtight sleeves of different sizes.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a civil airtight casing plugging device, comprising a civil airtight casing, a flange plate is fixedly connected to the end side wall of the civil airtight casing, and further comprising:

[0008] A blocking structure, which is arranged at the end of the airtight casing;

[0009] A fixed structure, which is arranged on the human blocking structure, and drives the blocking structure to be fixedly blocked at the end of the human airtight casing;

[0010] A position limiting snap-fitting structure is arranged on the top of the blocking structure.

[0011] Preferably, the blocking structure includes a handle frame, a connecting block, a rotating rod, a threaded rod, a blocking plate and a blocking pad, the blocking pad being fixedly connected to the side wall on one side of the blocking plate, one end of the threaded rod being rotatably connected to the side wall on the other side of the blocking plate, the other end of the threaded rod being fixedly connected to one end of the rotating rod, the other end of the rotating rod being fixedly connected to the connecting block, and the handle frame being fixedly connected to the side wall on the other side of the connecting block.

[0012] In this technical solution, the sealing pad is placed against the end of the civil airtight casing, the hand is inserted into the bottom of the sliding plate, the handle frame is held upward, and the handle frame is rotated. The handle frame drives the connecting block to rotate, the connecting block drives the rotating rod to rotate, and the rotating rod drives the threaded rod to rotate.

[0013] Preferably, two sliding grooves are provided on the inner side wall of the handle frame.

[0014] Preferably, two circular through grooves are formed on the side wall of the connecting block.

[0015] Preferably, two limiting rods are fixedly connected to the side wall of the blocking plate, the other end of the limiting rod is fixedly connected to the limiting plate, and the limiting plate is rotatably connected to the rotating rod.

[0016] In the technical solution, the limit rod restricts the movable frame to prevent the movable frame from rotating along with the threaded rod.

[0017] Preferably, the side wall of the limiting plate is provided with snap-fit ​​grooves at equal distances.

[0018] Preferably, the fixed structure includes a movable frame, a fixed frame, spring one and spring two, the movable frame is threadedly connected to the threaded rod, the movable frame is slidably connected to the limit rod, four fixed frames are slidably connected to the side wall of the movable frame at equal distances, and the spring one and spring two are fixedly connected between the fixed frame and the side wall of the movable frame.

[0019] In this technical solution, under the action of spring one and spring two, the fixing frame can be elastically adjusted according to the diameter of the civil airtight casing to be blocked, so that the side wall of the fixing frame fits against the side wall of the civil airtight casing.

[0020] Preferably, the first spring is located on the inner side wall of the moving frame, and the second spring is located on the outer side of the moving frame.

[0021] Preferably, the limiting clamping structure includes a spring three, a sliding plate, a sliding block and a clamping rod, two sliding blocks are fixedly connected to the side walls on both sides of the sliding plate, the two sliding blocks are slidably connected in two sliding grooves, the bottom of the sliding plate is fixedly connected to two clamping rods, and two springs three are fixedly connected between the top of the sliding plate and the handle frame.

[0022] In this technical solution, when the sliding plate moves upward under the action of hand force, spring three is compressed, and the sliding plate drives the clamping rod to move upward, so that the clamping rod disengages from the clamping groove. At this time, the connecting block is no longer restricted and can rotate. When the clamping rod is clamped into the corresponding clamping groove, the connecting block can be better restricted to prevent the connecting block from rotating.

[0023] Preferably, the clamping rod is slidably connected in the circular through groove, and the clamping rod and the clamping groove cooperate with each other.

[0024] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0025] The positive and progressive effects of the utility model are:

[0026] 1. Through the action of spring one and spring two, the fixing frame can be elastically adjusted according to the diameter of the air-defense closed casing to be blocked, so that the side wall of the fixing frame fits against the side wall of the air-defense closed casing. The handle frame is rotated to drive the threaded rod to rotate. The rotation of the threaded rod drives the fixing frame to move toward the flange, so that the fixing frame is tightly against the back of the flange, and the flange is tightly clamped with the sealing plate, so that the sealing pad tightly blocks the end of the air-defense closed casing, which is convenient for better application in the blocking of air-defense closed casings of different sizes, making the blocking device flexible to use as a whole.

[0027] 2. By clamping the clamping rod into the corresponding clamping groove, it is convenient to better restrict the connecting block to prevent the connecting block from rotating, causing the fixing frame to move and failing to clamp the flange well. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0029] Figure 2 It is a schematic diagram of the overall internal structure of the utility model.

[0030] Figure 3 It is a schematic diagram of the internal structure of the utility model as a whole viewed from above.

[0031] Figure 4 It is a three-dimensional structural schematic diagram of the position-limiting clamping structure of the utility model.

[0032] Description of Reference Numerals

[0033] 1. Airtight casing for civil air defense; 2. Fixed structure; 201. Mobile frame; 202. Fixed frame; 203. Spring one; 204. Spring two; 3. Limit plate; 4. Limit rod; 5. Blocking structure; 501. Handle frame; 502. Connecting block; 503. Rotating rod; 504. Threaded rod; 505. Blocking plate; 506. Blocking pad; 6. Flange; 7. Sliding groove; 8. Snap-in groove; 9. Limit snap-in structure; 901. Spring three; 902. Sliding plate; 903. Sliding block; 904. Snap-in rod; 10. Circular through groove. DETAILED DESCRIPTION

[0034] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0035] like Figure 1-4 As shown, a civil airtight casing plugging device includes a civil airtight casing 1, a flange 6 is fixedly connected to the end side wall of the civil airtight casing 1, and further includes:

[0036] A blocking structure 5, wherein the blocking structure 5 is arranged at the end of the civil airtight casing 1;

[0037] A fixed structure 2, wherein the fixed structure 2 is arranged on the human blocking structure 5, and the fixed structure 2 drives the blocking structure 5 to be fixedly blocked at the end of the human airtight casing 1;

[0038] The position-limiting clamping structure 9 is arranged on the top of the blocking structure 5 .

[0039] The blocking structure 5 includes a handle frame 501, a connecting block 502, a rotating rod 503, a threaded rod 504, a blocking plate 505 and a blocking pad 506. The blocking pad 506 is fixedly connected to the side wall on one side of the blocking plate 505, and one end of the threaded rod 504 is rotationally connected to the side wall on the other side of the blocking plate 505. The other end of the threaded rod 504 is fixedly connected to one end of the rotating rod 503, and the other end of the rotating rod 503 is fixedly connected to the connecting block 502. The side wall on the other side of the connecting block 502 is fixedly connected to the handle frame 501.

[0040] Place the sealing pad 506 against the end of the civil airtight sleeve 1, extend your hand into the bottom of the sliding plate 902, hold the handle frame 501 upwards, rotate the handle frame 501, the handle frame 501 drives the connecting block 502 to rotate, the connecting block 502 drives the rotating rod 503 to rotate, and the rotating rod 503 drives the threaded rod 504 to rotate.

[0041] Two sliding grooves 7 are formed on the inner side wall of the handle frame 501 .

[0042] Two circular through slots 10 are formed on the side wall of the connecting block 502 .

[0043] Two limiting rods 4 are fixedly connected to the side wall of the blocking plate 505 . The other end of the limiting rod 4 is fixedly connected to the limiting plate 3 . The limiting plate 3 is rotatably connected to the rotating rod 503 .

[0044] The limiting rod 4 limits the movable frame 201 to prevent the movable frame 201 from rotating along with the threaded rod 504 .

[0045] The side wall of the limiting plate 3 is provided with snap-fitting grooves 8 at equal intervals.

[0046] The fixed structure 2 includes a movable frame 201, a fixed frame 202, a spring 1 203 and a spring 204. The movable frame 201 is threadedly connected to the threaded rod 504. The movable frame 201 is slidably connected to the limit rod 4. Four fixed frames 202 are slidably connected to the side wall of the movable frame 201 at equal distances. The spring 1 203 and the spring 204 are fixedly connected between the fixed frame 202 and the side wall of the movable frame 201.

[0047] Under the action of spring 1 203 and spring 204 , the fixing frame 202 can be elastically adjusted according to the diameter of the civil airtight casing 1 to be blocked, so that the side wall of the fixing frame 202 fits against the side wall of the civil airtight casing 1 .

[0048] The spring 1 203 is located on the inner side wall of the moving frame 201 , and the spring 204 is located on the outer side of the moving frame 201 .

[0049] The limiting clamping structure 9 includes a spring three 901, a sliding plate 902, a sliding block 903 and a clamping rod 904. Two sliding blocks 903 are fixedly connected to the side walls on both sides of the sliding plate 902. The two sliding blocks 903 are slidably connected in two sliding grooves 7. The bottom of the sliding plate 902 is fixedly connected to two clamping rods 904. Two springs three 901 are fixedly connected between the top of the sliding plate 902 and the handle frame 501.

[0050] When the sliding plate 902 moves upward under the action of hand force, the spring three 901 is compressed, and the sliding plate 902 drives the clamping rod 904 to move upward, so that the clamping rod 904 disengages from the clamping groove 8. At this time, the connecting block 502 is no longer restricted and can rotate. When the clamping rod 904 is clamped into the corresponding clamping groove 8, the connecting block 502 can be better restricted to prevent the connecting block 502 from rotating.

[0051] The clamping rod 904 is slidably connected in the circular through groove 10 , and the clamping rod 904 and the clamping groove 8 cooperate with each other.

[0052] When the utility model is used, when the airtight casing 1 of the air defense is blocked, the movable frame 201 is sleeved on the airtight casing 1 of the air defense, so that the fixed frame 202 is placed behind the flange 6. Under the action of the spring 1 203 and the spring 204, the fixed frame 202 can be elastically adjusted according to the diameter of the airtight casing 1 of the air defense that needs to be blocked, so that the side wall of the fixed frame 202 fits on the side wall of the airtight casing 1 of the air defense;

[0053] Place the sealing pad 506 against the end of the airtight casing 1, extend your hand into the bottom of the sliding plate 902, hold the handle frame 501 upward, and the sliding plate 902 moves upward under the force of your hand, the spring 3 901 is compressed, and the sliding plate 902 drives the clamping rod 904 to move upward, so that the clamping rod 904 is separated from the clamping groove 8. At this time, the connecting block 502 is no longer restricted;

[0054] The handle frame 501 is rotated, and the handle frame 501 drives the connecting block 502 to rotate, and the connecting block 502 drives the rotating rod 503 to rotate, and the rotating rod 503 drives the threaded rod 504 to rotate, and the threaded rod 504 rotates to drive the moving frame 201 to move, and the moving frame 201 pulls the fixed frame 202 to move toward the flange 6, so that the fixed frame 202 is tightly against the back of the flange 6, and cooperates with the sealing plate 505 to tightly clamp the flange 6, so that the sealing pad 506 tightly blocks the end of the airtight casing 1, which is convenient for better application to the sealing of airtight casings 1 of different sizes, so that the sealing device is flexible to use as a whole;

[0055] After the plugging is completed, the handle frame 501 is released, and the compressed spring three 901 expands to push the sliding plate 902 down. The sliding plate 902 pushes the clamping rod 904 to go down, so that the clamping rod 904 is clamped into the corresponding clamping groove 8, which is convenient for better limiting the connection block 502 and preventing the connection block 502 from rotating, causing the fixing frame 202 to move and unable to clamp the flange 6 well. If the clamping rod 904 is clamped into the clamping groove 8, the handle frame 501 can be slightly rotated to make the clamping rod 904 clamped into the nearest clamping groove 8.

[0056] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A civil airtight casing plugging device, comprising a civil airtight casing (1), a flange (6) being fixedly connected to the end side wall of the civil airtight casing (1), characterized in that: Also includes: A blocking structure (5), wherein the blocking structure (5) is arranged at the end of the airtight casing (1); A fixing structure (2), wherein the fixing structure (2) is arranged on the human-proof blocking structure (5), and the fixing structure (2) drives the blocking structure (5) to be fixedly blocked at the end of the human-proof airtight casing (1); A position-limiting snap-fitting structure (9), wherein the position-limiting snap-fitting structure (9) is arranged on the top of the blocking structure (5).

2. The airtight casing plugging device for civil air defense according to claim 1, characterized in that: The blocking structure (5) comprises a handle frame (501), a connecting block (502), a rotating rod (503), a threaded rod (504), a blocking plate (505) and a blocking pad (506); the blocking pad (506) is fixedly connected to the side wall on one side of the blocking plate (505); one end of the threaded rod (504) is rotationally connected to the side wall on the other side of the blocking plate (505); the other end of the threaded rod (504) is fixedly connected to one end of the rotating rod (503); the other end of the rotating rod (503) is fixedly connected to the connecting block (502); and the side wall on the other side of the connecting block (502) is fixedly connected to the handle frame (501).

3. The airtight casing plugging device for civil air defense according to claim 2, characterized in that: Two sliding grooves (7) are provided on the inner side wall of the handle frame (501).

4. The airtight casing plugging device for civil air defense according to claim 2, characterized in that: Two circular through grooves (10) are provided on the side wall of the connecting block (502).

5. The airtight casing plugging device for civil air defense according to claim 2, characterized in that: Two limiting rods (4) are fixedly connected to the side wall of the blocking plate (505), the other end of the limiting rod (4) is fixedly connected to the limiting plate (3), and the limiting plate (3) is rotatably connected to the rotating rod (503).

6. The airtight casing plugging device for civil air defense according to claim 5, characterized in that: The side wall of the limiting plate (3) is provided with clamping grooves (8) at equal distances.

7. The airtight casing plugging device for civil air defense according to claim 1, characterized in that: The fixed structure (2) comprises a movable frame (201), a fixed frame (202), a spring 1 (203) and a spring 2 (204); the movable frame (201) is threadedly connected to a threaded rod (504); the movable frame (201) is slidably connected to a limit rod (4); four fixed frames (202) are slidably connected to the side wall of the movable frame (201) at equal distances; and the spring 1 (203) and the spring 2 (204) are both fixedly connected between the fixed frame (202) and the side wall of the movable frame (201).

8. The airtight casing plugging device for civil air defense according to claim 7, characterized in that: The spring 1 (203) is located on the inner side wall of the moving frame (201), and the spring 2 (204) is located on the outer side of the moving frame (201).

9. The airtight casing plugging device for civil air defense according to claim 1, characterized in that: The position limiting clamping structure (9) comprises a spring three (901), a sliding plate (902), a sliding block (903) and a clamping rod (904); two sliding blocks (903) are fixedly connected to the side walls on both sides of the sliding plate (902); the two sliding blocks (903) are slidably connected in two sliding grooves (7); the bottom of the sliding plate (902) is fixedly connected to the two clamping rods (904); and the two springs three (901) are fixedly connected between the top of the sliding plate (902) and the handle frame (501).

10. The airtight casing plugging device for civil air defense according to claim 9, characterized in that: The clamping rod (904) is slidably connected in the circular through groove (10), and the clamping rod (904) and the clamping groove (8) cooperate with each other.

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