Locking structure for civil air defense door

Abstract

The utility model discloses a locking structure for a civil defense door, which comprises a door frame and a door body, a sealing mechanism is arranged between the door frame and the door body, the sealing mechanism comprises a concave plug board I inserted in the middle of the upper end and the lower end of the door body, and concave plug boards II are inserted in the middle of two sides of the door body. The upper end and the lower end of the inner side of the door frame are provided with first inserting grooves used in cooperation with the first concave inserting plates, the middles of the two ends of the inner side of the door frame are provided with second inserting grooves used in cooperation with the second concave inserting plates, and the middles of the interiors of the first inserting grooves and the second inserting grooves are fixedly connected with sealing gaskets. A groove used in cooperation with the sealing extension is formed in one side of the door frame. Compared with the prior art, the sliding door has the advantages that the sealing position of the door frame and the door body is connected more tightly, the sealing effect is better, the sliding mechanism and the transmission mechanism are arranged outside one side of the door body, and the sliding door is convenient to maintain and repair.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense doors, in particular to a locking structure for civil air defense doors. Background Art

[0002] Civil defense doors are doors at the entrances and exits of people's defense projects. The classification of civil defense doors is relatively clear, including ordinary single-leaf and double-leaf protective closed doors and closed doors, movable door sills single-leaf and double-leaf protective closed doors and closed doors and other civil defense equipment. The civil defense door locking structure described in publication number CN219220088U includes a door panel, a door frame, a locking strip and a driving assembly; one end of the wide side of the door panel is hinged to the door frame, the hinge axis of the door panel is vertically arranged, and sliding grooves are provided at both ends of the wide side of the door panel; there are two locking strips, which are respectively located in the two sliding grooves, the long side direction of the locking strip is parallel to the long side direction of the door panel, and the locking strip is slidingly connected to the door panel; locking grooves for one end of the locking strip to extend into are provided on the inner walls at both ends of the wide side of the door frame, and the length direction of the locking grooves is parallel to the long side direction of the door panel; the driving assembly is connected to the door panel, and is used to drive the locking strip to move to the side close to the bottom wall of the locking groove. By adopting the above technical solution, the driving assembly is adjusted so that one end of the locking strip extends into the locking groove. When the door panel is locked, the gap between the door panel and the door frame is blocked by the locking strip, thereby improving the airtightness of the civil air defense door. However, the prior art still has defects:

[0003] 1. In the prior art, a rubber cushion is arranged between the sealing strip and the door frame, and a sealing cushion is arranged between the locking strip and the door frame. However, the sealing structure is too simple and the sealing effect is not strong.

[0004] 2. In the prior art, the driving member is arranged inside the door panel, which is not convenient for maintenance and repair, and the handle is fixed in size, which is not convenient for people with different physical strength to operate it. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a locking structure for civil air defense doors.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a locking structure for civil air defense door, comprising:

[0007] A door frame, wherein a door body is arranged in the middle of the door frame, and one side of the door body is hinged to the door frame;

[0008] A sealing mechanism, the sealing mechanism is arranged between the door frame and the door body, the sealing mechanism comprises a concave plug plate 1 inserted in the middle of the upper and lower ends of the door body, a concave plug plate 2 is inserted in the middle of both sides of the door body, a slot 1 for cooperating with the concave plug plate 1 is provided at the upper and lower ends of the inner side of the door frame, a slot 2 for cooperating with the concave plug plate 2 is provided in the middle of the two ends of the inner side of the door frame, a sealing gasket is fixedly connected between the slot 1 and the slot 2, a sealing extension is provided at one edge of the door body, and a groove for cooperating with the sealing extension is provided on one side of the door frame;

[0009] A sliding mechanism, the sliding mechanism is arranged on the door body, the sliding mechanism comprises a sliding block fixedly connected between one side of the concave plug plate 1 and the concave plug plate 2, a sliding groove for matching the sliding block is provided on one side of the door body, and a sliding plate is fixedly connected to one side of the sliding block;

[0010] A transmission mechanism, the transmission mechanism is arranged on the slide plate, the transmission mechanism comprises a square plate arranged in the middle of one side of the door body, the four corners of one side of the square plate are rotatably connected with cranks, and one end of the crank away from the square plate is rotatably connected to the slide plate;

[0011] A rotating mechanism, the rotating mechanism is arranged on the door body, the rotating mechanism comprises a rotating shaft rotatably connected to one side of the door body, the rotating shaft is fixedly inserted in the middle of the square plate, one end of the rotating shaft away from the door body is fixedly sleeved with a wheel disc, and the upper and lower ends and both sides of the wheel disc are threadedly connected with extension rods;

[0012] The positioning mechanism is arranged on the rotating mechanism.

[0013] As an improvement, the area of ​​the slide plate is larger than the area of ​​the slide groove, and the slide plate can cover the slide groove.

[0014] As an improvement, the square plate is a regular rectangular structure.

[0015] As an improvement, the positioning mechanism includes:

[0016] A positioning bolt, the positioning bolt is plugged into the square plate, and the positioning bolt passes through the square plate and is threadedly connected to the door body;

[0017] Positioning holes, two of which are provided on one side of the door body for use with positioning bolts.

[0018] As an improvement, a knob is fixedly connected to the side of the extension rod away from the wheel disc.

[0019] Compared with the prior art, the advantages of the utility model are: 1. The concave plug plate 1 and the concave plug plate 2 in the utility model and the sealing gasket make the sealing connection between the door frame and the door body tighter and the sealing effect better. In addition, a sealing extension and a groove are provided to perform secondary sealing on the connection between the door frame and the door body, thereby further enhancing the sealing.

[0020] 2. The sliding mechanism and the transmission mechanism used for transmission in the utility model are arranged on the outside of one side of the door body, which is convenient for maintenance and repair. The extension rod can be rotated by turning the knob, and the extension rod can be rotated outward to extend, which is convenient for operators with less strength to rotate the wheel, and the use is more flexible and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural schematic diagram of a locking structure for a civil air defense door.

[0022] Figure 2 It is a front view of a locking structure for a civil air defense door of the utility model.

[0023] Figure 3 This is a cross-sectional view of a locking structure for a civil air defense door of the utility model. Figure 1 .

[0024] Figure 4 yes Figure 3 Enlarged view of area A in the middle.

[0025] Figure 5 yes Figure 3 Enlarged view of area B.

[0026] Figure 6 This is a cross-sectional view of a locking structure for a civil air defense door of the utility model. Figure 2 .

[0027] Figure 7 This is a cross-sectional view of a locking structure for a civil air defense door of the utility model. Figure 3 .

[0028] Figure 8 yes Figure 7 Enlarged view of area C.

[0029] Fig. 9 This is a partial structural diagram of a locking structure for a civil air defense door of the utility model. Figure 1 .

[0030] Fig.10 This is a partial structural diagram of a locking structure for a civil air defense door of the utility model. Figure 2 .

[0031] Fig.11 This is a partial structural diagram of a locking structure for a civil air defense door of the utility model. Figure 3 .

[0032] Fig.12 This is a partial structural diagram of a locking structure for a civil air defense door of the utility model. Figure 4 .

[0033] As shown in the figure: 1. Door frame; 2. Door body; 3. Sealing mechanism; 31. Concave plug plate 1; 32. Concave plug plate 2; 33. Slot 1; 34. Slot 2; 35. Sealing gasket; 36. Sealing extension; 37. Groove; 4. Sliding mechanism; 41. Sliding block; 42. Sliding groove; 43. Slide plate; 5. Transmission mechanism; 51. Square plate; 52. Crank; 6. Rotating mechanism; 61. Rotating shaft; 62. Roulette; 63. Extension rod; 7. Positioning mechanism; 71. Positioning bolt; 72. Positioning hole; 8. Knob. DETAILED DESCRIPTION

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0035] A locking structure for a civil air defense door, such as Figure 1 As shown, it includes a door frame 1, a door body 2 is arranged in the middle of the door frame 1, one side of the door body 2 is hinged to the door frame 1, a sealing mechanism 3 is arranged between the door frame 1 and the door body 2, the sealing mechanism 3 includes a concave plug plate 1 31 inserted in the middle of the upper and lower ends of the door body 2, a concave plug plate 2 32 is inserted in the middle of both sides of the door body 2, a slot 1 33 used in conjunction with the concave plug plate 1 31 is opened at the upper and lower ends of the inner side of the door frame 1, a slot 2 34 used in conjunction with the concave plug plate 2 32 is opened in the middle of the two ends of the inner side of the door frame 1, and a sealing gasket is fixedly connected in the middle of the slot 1 33 and the slot 2 34 35. A sealing extension 36 is provided on one side edge of the door body 2, and a groove 37 used in conjunction with the sealing extension 36 is provided on one side of the door frame 1. When the door body 2 is closed in the middle of the door frame 1, the concave plug plate 1 31 can be slidably inserted into the slot 1 33, and the concave plug plate 2 32 can be slidably inserted into the inside of the slot 2 34. The concave plug plate 1 31 and the concave plug plate 2 32 and the sealing gasket 35 make the sealing connection tighter and the sealing effect better. A sealing extension 36 is also provided to perform secondary sealing on the connection between the door frame 1 and the door body 2, thereby further enhancing the sealing performance.

[0036] The door body 2 is provided with a sliding mechanism 4, which includes a slider 41 fixedly connected to the middle of one side of the concave plug plate 1 31 and the concave plug plate 2 32. A slide groove 42 used in conjunction with the slider 41 is provided on one side of the door body 2, and a slide plate 43 is fixedly connected to one side of the slider 41; the area of ​​the slide plate 43 is larger than the area of ​​the slide groove 42, and the slide plate 43 can cover the slide groove 42. A transmission mechanism 5 is provided on the slide plate 43, which includes a square plate 51 arranged in the middle of one side of the door body 2, and the square plate 51 is a regular rectangular structure, and a crank 52 is rotatably connected to the four corners of one side of the square plate 51, and the end of the crank 52 away from the square plate 51 is rotatably connected to the slide plate 43.

[0037] A rotating mechanism 6 is provided on the door body 2, and the rotating mechanism 6 includes a rotating shaft 61 rotatably connected to one side of the door body 2, the rotating shaft 61 is fixedly inserted in the middle of the square plate 51, and a wheel disc 62 is fixedly sleeved on one end of the rotating shaft 61 away from the door body 2, and an extension rod 63 is threadedly connected to the upper and lower ends and both sides of the wheel disc 62, and a knob 8 is fixedly connected to the side of the extension rod 63 away from the wheel disc 62. The extension rod 63 can be rotated by rotating the knob 8, and the extension rod 63 can be rotated outward to extend it, so that an operator with less strength can rotate the wheel disc 62.

[0038] A positioning mechanism 7 is provided on the rotating mechanism 6, and the positioning mechanism 7 includes a positioning bolt 71 and a positioning hole 72. The positioning bolt 71 is inserted into the square plate 51, and the positioning bolt 71 passes through the square plate 51 and is threadedly connected to the door body 2. Two positioning holes 72 are opened on one side of the door body 2 for use with the positioning bolt 71.

[0039] When the utility model is implemented, Figure 1-12 As shown, when in use, the positioning bolt 71 is turned and unscrewed, and the wheel 62 is turned. The user can turn the knob 8 according to his or her own strength to drive the extension rod 63 to rotate outward and extend it, so that the operator with less strength can turn the wheel 62.

[0040] The rotation of the wheel plate 62 drives the rotating shaft 61 to rotate, and the rotation of the rotating shaft 61 drives the square plate 51 to rotate. The rotation of the square plate 51 drives the crank 52 to rotate accordingly. The crank 52 drives the slide plate 43 to move away from each other under the drive of the square plate 51. The slide plates 43 move away from each other and drive the slider 41 to slide in the slide groove 42. The upper and lower end sliders 41 move away from each other and drive the upper and lower concave plug plates 31 to slide and insert into the slots 33 at the upper and lower ends. The sliders 41 on both sides move away from each other and drive the concave plug plates 32 to slide and insert into the slots 34 on both sides. The upper end of the square plate 51 rotates to the highest point, and the sealing is completed. The positioning bolt 71 is inserted into the square plate 51 and screwed into the corresponding positioning hole 72 at this time. The concave plug plate 31 and the concave plug plate 2 32 and the sealing gasket 35 make the sealing connection more tightly and the sealing effect is better. A sealing extension 36 is also provided to perform secondary sealing on the connection between the door frame 1 and the door body 2, which further strengthens the sealing.

[0041] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A locking structure for a civil air defense door, characterized in that: include: A door frame (1), wherein a door body (2) is arranged in the middle of the door frame (1), and one side of the door body (2) is hinged to the door frame (1); A sealing mechanism (3), the sealing mechanism (3) being arranged between the door frame (1) and the door body (2), the sealing mechanism (3) comprising a concave plug plate (31) inserted in the middle of the upper and lower ends of the door body (2), a concave plug plate (32) inserted in the middle of both sides of the door body (2), a slot (33) for use with the concave plug plate (31) being provided at the upper and lower ends of the inner side of the door frame (1), a slot (34) for use with the concave plug plate (32) being provided in the middle of both ends of the inner side of the door frame (1), a sealing gasket (35) being fixedly connected between the slot (33) and the slot (34), a sealing extension (36) being provided on one side edge of the door body (2), and a groove (37) for use with the sealing extension (36) being provided on one side of the door frame (1); A sliding mechanism (4), the sliding mechanism (4) being arranged on the door body (2), the sliding mechanism (4) comprising a sliding block (41) fixedly connected to the middle of one side of the concave plug plate 1 (31) and the concave plug plate 2 (32), a sliding groove (42) for cooperating with the sliding block (41) being provided on one side of the door body (2), and a sliding plate (43) being fixedly connected to one side of the sliding block (41); A transmission mechanism (5), the transmission mechanism (5) being arranged on the slide plate (43), the transmission mechanism (5) comprising a square plate (51) arranged in the middle of one side of the door body (2), the four corners of one side of the square plate (51) being rotatably connected to cranks (52), and the end of the crank (52) away from the square plate (51) being rotatably connected to the slide plate (43); A rotating mechanism (6), the rotating mechanism (6) being arranged on the door body (2), the rotating mechanism (6) comprising a rotating shaft (61) rotatably connected to one side of the door body (2), the rotating shaft (61) being fixedly inserted in the middle of the square plate (51), the end of the rotating shaft (61) away from the door body (2) being fixedly sleeved with a wheel disc (62), the upper and lower ends and both sides of the wheel disc (62) being threadedly connected with extension rods (63); A positioning mechanism (7), wherein the positioning mechanism (7) is arranged on the rotating mechanism (6).

2. A locking structure for a civil air defense door according to claim 1, characterized in that: The area of ​​the slide plate (43) is larger than the area of ​​the slide groove (42), and the slide plate (43) can cover the slide groove (42).

3. The locking structure for a civil air defense door according to claim 1, characterized in that: The square plate (51) is a regular rectangular structure.

4. The locking structure for a civil air defense door according to claim 1, characterized in that: The positioning mechanism (7) comprises: A positioning bolt (71), wherein the positioning bolt (71) is inserted into the square plate (51), and the positioning bolt (71) passes through the square plate (51) and is threadedly connected to the door body (2); Positioning holes (72), two positioning holes (72) are provided on one side of the door body (2) and are used in conjunction with the positioning bolts (71).

5. The locking structure for a civil air defense door according to claim 1, characterized in that: A knob (8) is fixedly connected to the side of the extension rod (63) away from the wheel disc (62).

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