Locking structure of civil air defense door

Abstract

The utility model discloses a locking structure of a civil air defense door, which relates to the technical field of civil air defense doors and comprises a civil air defense door body and a bolt hole, the bolt hole is arranged on the inner side of the right end of the civil air defense door body, and a locking bolt mechanism is arranged on the civil air defense door body on the inner side of the bolt hole. A secondary locking mechanism is arranged above the locking bolt mechanism and located on the inner side of the civil air defense door body, and a locking rotating mechanism is arranged above the rear end of the locking bolt mechanism and located on the inner side of the civil air defense door body. The locking rotating mechanism rotates in the forward direction, the locking rotating mechanism can drive a gear panel of the locking bolt mechanism to move from left to right, the gear panel drives an end block bolt to be exposed out of a bolt sleeve plate and then is connected to an external door frame in an inserted mode, locking is completed, and then the secondary locking mechanism abuts against and fixes the gear panel. And the gear panel is prevented from moving, so that the fixing is safer and more stable.

Description

Technical Field

[0001] This utility model relates to the field of civil defense door technology, and in particular to a locking structure for civil defense doors. Background Technology

[0002] Civil defense doors are the doors at the entrances and exits of civil defense projects. Civil defense doors are classified in a relatively clear way, including ordinary single and double-leaf protective airtight doors and airtight doors, as well as single and double-leaf protective airtight doors and airtight doors with movable thresholds, etc. When civil defense doors are closed, a locking structure is required.

[0003] The existing Chinese patent CN220247838U, disclosed on December 26, 2023, discloses a locking seat for a civil defense door, including a lock seat, a lock sleeve, and an installation structure. The installation structure includes a pressing plate symmetrically arranged on the upper end of the lock seat. The pressing plate is positioned so as not to affect the upward movement of the lock sleeve. The pressing plate includes a horizontal plate and a vertical plate. The vertical plate is inserted into the upper end of the lock seat. A limiting plate is slidably arranged in the gap between the horizontal plate of the pressing plate and the upper end of the lock seat. The lower end of the limiting plate abuts against the upper end of the lock sleeve.

[0004] However, the locking structure of the aforementioned air-raid shelter doors is rather cumbersome to operate, and the entire structure cannot effectively perform secondary positioning protection when closed, lacking a secondary positioning mechanism, thus making it not very safe when closed. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a locking structure for a fire-fighting door. The locking rotation mechanism rotates in the forward direction, which drives the gear panel of the locking pin mechanism to move from left to right. The gear panel then drives the end block pin to protrude from the pin sleeve and then insert it into the outer door frame to complete the locking. The secondary locking mechanism then abuts and fixes the gear panel to prevent the gear panel from moving, making the fixing safer and more stable.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A locking structure for a civil defense door includes a civil defense door body and a bolt hole. The bolt hole is provided on the inner side of the right end of the civil defense door body. A locking bolt mechanism is provided on the inner side of the bolt hole on the civil defense door body. A secondary locking mechanism is provided above the locking bolt mechanism on the inner side of the civil defense door body. A locking rotation mechanism is provided above the rear end of the locking bolt mechanism on the inner side of the civil defense door body. The secondary locking mechanism is electrically connected to an external controller via a connecting wire.

[0008] The secondary locking mechanism includes an outer housing, a U-shaped mounting plate, an electric telescopic cylinder, a locking plate, and a V-shaped locking groove. The U-shaped mounting plate is provided on the lower periphery of the outer housing. The electric telescopic cylinder is provided in the middle of the inner side of the outer housing and the U-shaped mounting plate. The locking plate is provided at the lower end of the telescopic rod of the electric telescopic cylinder. The V-shaped locking groove is provided on the inner side of the lower end of the locking plate. The outer housing is mounted and connected to the locking pin mechanism through the U-shaped mounting plate.

[0009] Through the above technical solution: the main body of the air-raid shelter door is installed on the outer door frame via hinges, and the main body of the air-raid shelter door can move and open and close on the outer door frame. When the air-raid shelter door is locked, the personnel hold the locking rotation mechanism and rotate it in the forward direction. The locking rotation mechanism can drive the gear panel of the locking pin mechanism to move from left to right. The gear panel then drives the end block pin to protrude from the pin sleeve plate and then insert it into the outer door frame, thus completing the locking. Then the secondary locking mechanism abuts and fixes the gear panel to prevent the gear panel from moving, so that it is safer and more stable when fixed.

[0010] The present invention is further configured such that the locking rotation mechanism includes an upper rotating wheel, a cross rotating rod, a positioning sleeve and a locking gear. The positioning sleeve is sleeved around the periphery of the cross rotating rod, the upper rotating wheel is provided at the front end of the cross rotating rod, and the locking gear is provided at the inner end of the cross rotating rod. The locking gear meshes with the locking pin mechanism, and the positioning sleeve is fixedly connected to the body of the air defense door.

[0011] The above technical solution utilizes a locking and rotating mechanism structure, allowing for locking via rotation.

[0012] The present invention is further configured such that the locking pin mechanism includes a pin sleeve plate, a gear panel, an end block pin, and an upper locking groove. The upper inner side of the pin sleeve plate is provided with an upper locking groove, the end block pin is provided inside the pin sleeve plate, and the rear end of the end block pin is provided with a gear panel, which meshes with a locking gear.

[0013] The above technical solution utilizes a locking pin mechanism structure, allowing gears to move and lock the device.

[0014] The present invention is further configured such that there are two locking rotation mechanisms, and the locking rotation mechanisms are symmetrically arranged on the body of the air defense door.

[0015] The above technical solution allows for the installation and use of a corresponding locking and rotating mechanism through the structure of the air defense door body.

[0016] The present invention is further provided that the interior of the air defense door body is provided with mounting slots corresponding to the secondary locking mechanism, the locking pin mechanism and the locking rotation mechanism.

[0017] The above technical solution allows the secondary locking mechanism, locking pin mechanism, and locking rotation mechanism to be installed in the corresponding mounting slots on the air defense door body.

[0018] The present invention is further configured such that the secondary locking mechanism and the locking pin mechanism are connected by screws, and a rubber pad is provided at the connection between the secondary locking mechanism and the locking pin mechanism.

[0019] The above technical solution allows for the corresponding installation and connection of the secondary locking mechanism through the locking pin mechanism structure.

[0020] The present invention is further configured such that the cross-shaped rotating rod is rotatably mounted on the inner side of the positioning sleeve, and a rotation gap groove is provided at the connection.

[0021] The above technical solution utilizes a positioning sleeve structure to allow the cross-shaped rotating rod to be positioned and rotated for use.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. The secondary locking mechanism allows for precise positioning and locking. A U-shaped mounting plate is fixed to the lower periphery of the outer shell of the secondary locking mechanism. The outer shell is connected to the locking pin mechanism via the U-shaped mounting plate, allowing for corresponding installation. An electric telescopic cylinder is fixed to the inner middle of the outer shell and the U-shaped mounting plate, ensuring stable placement. A locking plate is fixed to the lower end of the telescopic rod of the electric telescopic cylinder. The lower inner side of the locking plate has a V-shaped locking groove. When the telescopic rod of the electric telescopic cylinder extends, it drives the locking plate through the interior of the locking pin mechanism. The locking plate can then effectively latch onto the gear panel of the locking pin mechanism via the V-shaped locking groove, ensuring effective locking and preventing the locking pin mechanism from snapping. This enhances safety during locking.

[0024] 2. By setting up a locking pin mechanism, locking can be achieved through the locking rotation mechanism. The upper inner side of the upper end of the locking pin sleeve plate has an upper locking groove, so that the secondary locking mechanism can pass through to lock. An end block pin is sleeved inside the pin sleeve plate, so that the end block pin can be positioned and moved in the pin sleeve plate. A gear panel is fixed to the rear end of the end block pin. The gear panel meshes with the locking gear. When the locking gear rotates in the forward direction, it can drive the gear panel to move from left to right, which facilitates locking. Attached Figure Description

[0025] Figure 1 This is a front three-dimensional structural diagram of the locking structure of a civil defense door proposed in this utility model;

[0026] Figure 2This is a schematic diagram of the rear cross-sectional structure of the locking structure of a civil defense door proposed in this utility model;

[0027] Figure 3 This utility model provides a schematic diagram of the locking pin mechanism and secondary locking mechanism of a locking structure for a civil defense door.

[0028] Figure 4 This is a schematic diagram of the locking rotation mechanism of a locking structure for a civil defense door proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the secondary locking mechanism of a locking structure for a civil defense door proposed in this utility model.

[0030] In the diagram: 1. Air raid shelter door body; 2. Locking rotation mechanism; 21. Upper rotating wheel; 22. Cross rotating rod; 23. Positioning sleeve; 24. Locking gear; 3. Secondary locking mechanism; 31. Outer shell; 32. U-shaped mounting plate; 33. Electric telescopic cylinder; 34. Locking insert plate; 35. V-shaped lock groove; 4. Pin hole; 5. Locking pin mechanism; 51. Pin sleeve plate; 52. Gear panel; 53. End block pin; 54. Upper locking groove. Detailed Implementation

[0031] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0032] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0033] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0034] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0035] Reference Figures 1-5 A locking structure for a civil defense door includes a civil defense door body 1 and a bolt hole 4. The bolt hole 4 is provided on the inner side of the right end of the civil defense door body 1. A locking bolt mechanism 5 is installed on the inner side of the bolt hole 4 on the civil defense door body 1. The locking bolt mechanism 5 can pass through the area of ​​the bolt hole 4 and thus lock onto the outer door frame. A secondary locking mechanism 3 is installed above the locking bolt mechanism 5 on the inner side of the civil defense door body 1. The secondary locking mechanism 3 can lock the movement of the locking bolt mechanism 5 to prevent the locking bolt mechanism 5 from opening and closing arbitrarily, making it safer when locked. A locking rotation mechanism 2 is installed above the rear end of the locking bolt mechanism 5 on the inner side of the civil defense door body 1. The locking rotation mechanism 2 can drive the locking bolt mechanism 5 to lock. The secondary locking mechanism 3 is electrically connected to an external controller through a connecting wire, so that it can be operated and controlled by the external controller.

[0036] The secondary locking mechanism 3 includes an outer housing 31, a U-shaped mounting plate 32, an electric telescopic cylinder 33, a locking insert 34, and a V-shaped lock groove 35. The U-shaped mounting plate 32 is fixedly connected to the lower periphery of the outer housing 31. The outer housing 31 is mounted to the locking pin mechanism 5 via the U-shaped mounting plate 32, allowing the outer housing 31 to be correspondingly installed. An electric telescopic cylinder 33 is fixedly connected between the inner sides of the outer housing 31 and the U-shaped mounting plate 32, enabling the electric telescopic cylinder 33 to... It can be placed stably. The lower end of the telescopic rod of the electric telescopic cylinder 33 is fixed with a locking plate 34. The inner side of the lower end of the locking plate 34 is provided with a V-shaped locking groove 35. When the telescopic rod of the electric telescopic cylinder 33 extends, it drives the locking plate 34 to pass through the interior of the locking pin mechanism 5. The locking plate 34 can be effectively locked onto the gear panel 52 of the locking pin mechanism 5 through the V-shaped locking groove 35, so that it is effectively locked and fixed, preventing the locking pin mechanism 5 from collapsing, thus making it safer when locking.

[0037] Specifically, the locking rotation mechanism 2 includes an upper rotating wheel 21, a cross rotating rod 22, a positioning sleeve 23, and a locking gear 24. The positioning sleeve 23 is sleeved around the cross rotating rod 22 and fixed to the body 1 of the air defense door, so that the cross rotating rod 22 can rotate stably in the positioning sleeve 23. The upper rotating wheel 21 is installed at the front end of the cross rotating rod 22, so that people can hold the upper rotating wheel 21 to rotate it. When the upper rotating wheel 21 rotates, it can drive the cross rotating rod 22 to rotate. The locking gear 24 is fixed to the inner end of the cross rotating rod 22, so that the cross rotating rod 22 can drive the locking gear 24 to rotate. The locking gear 24 meshes with the locking pin mechanism 5, and when the locking gear 24 rotates, it can drive the locking pin mechanism 5 to transmit power.

[0038] The cross-shaped rotating rod 22 is rotatably mounted inside the positioning sleeve 23, and a rotation clearance groove is provided at the connection, so that the cross-shaped rotating rod 22 can be positioned and rotated in the positioning sleeve 23.

[0039] Specifically, the locking pin mechanism 5 includes a pin sleeve plate 51, a gear panel 52, an end block pin 53, and an upper locking groove 54. The upper inner side of the pin sleeve plate 51 is provided with an upper locking groove 54, so that the secondary locking mechanism 3 can pass through to lock. The end block pin 53 is sleeved inside the pin sleeve plate 51, so that the end block pin 53 can be positioned and moved in the pin sleeve plate 51. The rear end of the end block pin 53 is fixedly connected to the gear panel 52, which meshes with the locking gear 24. When the locking gear 24 rotates in the forward direction, it can drive the gear panel 52 to move from left to right, making it convenient for locking.

[0040] Specifically, there are two locking and rotating mechanisms 2, which are symmetrically installed on the body 1 of the air defense door. The locking and rotating mechanisms 2 can be used to lock and rotate the air defense door body 1 from top to bottom.

[0041] Specifically, the interior of the air defense door body 1 is provided with mounting slots corresponding to the secondary locking mechanism 3, the locking pin mechanism 5, and the locking rotation mechanism 2, so that they can be installed and used accordingly.

[0042] Specifically, the secondary locking mechanism 3 and the locking pin mechanism 5 are connected by screws, which allows for corresponding installation. Rubber pads are installed at the connection between the secondary locking mechanism 3 and the locking pin mechanism 5, making the fixing tighter and more secure.

[0043] Working principle: In use, the main body 1 of the air-raid shelter door is installed on the outer door frame via hinges. The main body 1 of the air-raid shelter door can move and open on the outer door frame. When the main body 1 of the air-raid shelter door is locked, the personnel hold the locking rotation mechanism 2 and rotate it in the forward direction. The locking rotation mechanism 2 can drive the gear panel 52 of the locking pin mechanism 5 to move from left to right. The gear panel 52 drives the end block pin 53 to protrude from the pin sleeve plate 51 and then insert it into the outer door frame to complete the locking. Then the secondary locking mechanism 3 abuts and fixes the gear panel 52 to prevent the gear panel 52 from moving, so that it is safer and more stable when fixed.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A locking structure for a civil defense door, comprising a civil defense door body (1) and a bolt hole (4), wherein the bolt hole (4) is provided on the inner side of the right end of the civil defense door body (1), characterized in that, A locking bolt mechanism (5) is provided on the inner side of the bolt hole (4) on the body of the air defense door (1). A secondary locking mechanism (3) is provided above the locking bolt mechanism (5) on the inner side of the body of the air defense door (1). A locking rotation mechanism (2) is provided above the rear end of the locking bolt mechanism (5) on the inner side of the body of the air defense door (1). The secondary locking mechanism (3) is electrically connected to an external controller via a connecting line. The secondary locking mechanism (3) includes an outer housing (31), a U-shaped mounting plate (32), an electric telescopic cylinder (33), a locking insert plate (34), and a V-shaped lock groove (35). The lower periphery of the outer housing (31) is provided with a U-shaped mounting plate (32). The electric telescopic cylinder (33) is provided in the middle of the inner side of the outer housing (31) and the U-shaped mounting plate (32). The lower end of the telescopic rod of the electric telescopic cylinder (33) is provided with a locking insert plate (34). The lower inner side of the locking insert plate (34) is provided with a V-shaped lock groove (35). The outer housing (31) is mounted and connected to the locking pin mechanism (5) through the U-shaped mounting plate (32).

2. The locking structure of a civil defense door according to claim 1, characterized in that, The locking rotation mechanism (2) includes an upper rotating wheel (21), a cross rotating rod (22), a positioning sleeve (23), and a locking gear (24). The positioning sleeve (23) is sleeved around the cross rotating rod (22). The upper rotating wheel (21) is provided at the front end of the cross rotating rod (22). The locking gear (24) is provided at the inner end of the cross rotating rod (22). The locking gear (24) meshes with the locking pin mechanism (5). The positioning sleeve (23) is fixedly connected to the body of the air defense door (1).

3. The locking structure of a civil defense door according to claim 2, characterized in that, The locking pin mechanism (5) includes a pin sleeve plate (51), a gear panel (52), an end block pin (53), and an upper locking groove (54). The upper inner side of the pin sleeve plate (51) is provided with an upper locking groove (54). The end block pin (53) is provided inside the pin sleeve plate (51). The rear end of the end block pin (53) is provided with a gear panel (52). The gear panel (52) meshes with the locking gear (24).

4. The locking structure of a civil defense door according to claim 2, characterized in that, There are two locking and rotating mechanisms (2), and the locking and rotating mechanisms (2) are symmetrically arranged on the body (1) of the air defense door.

5. The locking structure of a civil defense door according to claim 4, characterized in that, The interior of the air defense door body (1) is provided with mounting slots corresponding to the secondary locking mechanism (3), the locking pin mechanism (5), and the locking rotation mechanism (2).

6. The locking structure of a civil defense door according to claim 5, characterized in that, The secondary locking mechanism (3) and the locking pin mechanism (5) are connected by screws, and a rubber pad is provided at the connection between the secondary locking mechanism (3) and the locking pin mechanism (5).

7. The locking structure of a civil defense door according to claim 2, characterized in that, The cross-shaped rotating rod (22) is rotatably mounted on the inner side of the positioning sleeve (23), and a rotation gap groove is provided at the connection.

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