Concealed locking device of civil defense door

Abstract

The hidden locking device of the civil defense door is installed on a door plate and a door frame, a locking block is arranged on the inner side of the door plate, an adjusting end is arranged on the outer side of the door plate, and when the adjusting end is rotated, the position of the locking block is changed, so that the locking block and the door frame are locked or unlocked; the door plate is further provided with a movable end, fixing sleeves are arranged on the outer side of the movable end and the outer side of the adjusting end in a threaded mode respectively, wrench structures are assembled at the top ends of the fixing sleeves on the two sides in a threaded mode at the same time, and a transmission matching structure is formed between the wrench structures and the adjusting end. In a conventional state, the appearance of the wrench structure is more like a door handle, it is difficult to notice that the wrench structure is a locking structure, therefore, the wrench structure has good concealment, when threaded fit of the movable end is canceled, the wrench structure can rotate on one side of the adjusting end, and then the locking block converts a door plate from a locked state to an unlocked state.

Description

Technical Field

[0001] The present application relates to a concealed locking device for a civil air defense door. Background Art

[0002] Civil defense doors are the doors at the entrances and exits of people's defense projects. Civil defense doors are clearly classified into ordinary single-leaf and double-leaf protective closed doors and closed doors, movable threshold single-leaf and double-leaf protective closed doors and closed doors, and other civil defense equipment.

[0003] In certain specific scenarios, in order to ensure safety, the locking structure of the civil air defense door needs to have a certain degree of concealment so that a specific group of people can operate the civil air defense door to open or lock it. For this reason, we propose a hidden locking device for the civil air defense door. Summary of the invention

[0004] The purpose of this application is to provide a concealed locking device for a civil air defense door.

[0005] In order to achieve the above objectives, the technical solution adopted in the present application is: a concealed locking device for a civil air defense door, which is installed on a door panel and a door frame, a locking block is provided on the inner side of the door panel, and an adjusting end is provided on the outer side of the door panel. When the adjusting end is rotated, the position of the locking block changes, so that the locking block and the door frame are locked or unlocked; the door panel is also provided with a movable end, and the outer sides of the movable end and the adjusting end are respectively threaded with fixing sleeves, and the top ends of the fixing sleeves on both sides are simultaneously threadedly equipped with wrench structures, and a transmission matching structure is formed between the wrench structure and the adjusting end.

[0006] Preferably, a turntable assembly is provided on both inner and outer sides of the door panel, and a transmission structure and a locking rod are provided on the inner side of the door panel. When the turntable assembly is rotated, the transmission structure operates to allow the locking rod to extend into the door frame to lock it.

[0007] As a preference, the transmission matching structure comprises a transmission hole arranged at the adjustment end and a transmission part arranged on the wrench structure, and the cross-sections of the transmission roller and the transmission part are non-circular.

[0008] As a preference, the wrench structure is semi-rectangular, and an adjusting portion and a matching portion are respectively provided on both sides of the wrench structure, and threads matching with the adjusting end and the movable end are respectively provided on the outer sides of the adjusting portion and the matching portion; the transmission portion is arranged at the bottom of the adjusting portion.

[0009] Preferably, a connecting rod assembly is provided on the inner side of the door panel, the connecting rod assembly includes a locking block for cooperating with the door frame to lock, and a cam is fixedly mounted on the door panel; a connecting assembly is provided through the center of the cam, the connecting rod assembly passes through the door panel, and an adjusting end is provided on the outer side of the door panel, and when the adjusting end rotates, the cam is rotated, and then the locking block is rotated to lock or unlock with the door frame.

[0010] Preferably, the connecting rod assembly is provided with an inner lever at one end on the inner side of the door panel, and the inner lever is an L-shaped round rod.

[0011] Preferably, the portion of the connecting rod assembly extending out of the outside of the door panel forms a connecting portion, an adjustment sleeve is threadedly mounted on the outside of the connecting portion, the height of the adjustment sleeve is consistent with the height of the connecting assembly, the transmission hole is arranged on the outside of the connecting assembly, and the outer diameter of the adjustment end is the same as the inner diameter of the adjustment sleeve.

[0012] As a preference, a handle is further provided on the front side of the door panel.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] Under normal conditions, the appearance of the wrench structure is more like a door handle, and it is difficult to notice that it is a locking structure, so it has good concealment. When the threaded fit at the movable end is cancelled, the wrench structure can be rotated on the adjustment end side, allowing the locking block to change the door panel from a locked state to an unlocked state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of an embodiment of the present application.

[0016] Figure 2 yes Figure 1 Rear view of.

[0017] Figure 3 This is a diagram showing the locking device in use when it is opened.

[0018] Figure 4 It is a partial enlarged view of some structures of the locking device.

[0019] Figure 5 It is a schematic diagram of the wrench structure.

[0020] Figure 6 It is a top view of an embodiment of the present application.

[0021] In the figure: 1. door panel; 2. door frame; 3. shaft connection part; 4. turntable assembly; 5. wrench structure; 51. adjustment part; 52. matching part; 53. transmission part; 6. movable end; 7. adjustment end; 7a. adjustment sleeve; 7b. connecting assembly; 8. handle; 9. connecting rod assembly; 10. locking block; 11. locking rod; 12. cam; 13. inner lever. DETAILED DESCRIPTION

[0022] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0025] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0026] Example:

[0027] Reference Figures 1 to 6 This embodiment proposes a concealed locking device for a civil air defense door, which is installed on a door panel 1 and a door frame 2. A lock block 10 is provided on the inner side of the door panel 1, and an adjustment end 7 is provided on the outer side of the door panel 1. When the adjustment end 7 is rotated, the position of the lock block 10 changes, so that the lock block 10 and the door frame 2 are locked or unlocked; the door panel 1 is also provided with a movable end 6, and the outer sides of the movable end 6 and the outer sides of the adjustment end 7 are respectively threaded with fixed sleeves, and the top ends of the fixed sleeves on both sides are simultaneously threaded with a wrench structure 5, and a transmission matching structure is formed between the wrench structure 5 and the adjustment end 7. Under normal conditions, the wrench structure 5 is as shown in FIG. Figure 1As shown, its appearance is more like a door handle, and it is difficult to notice that it is a structure for locking, so it has good concealment. When the threaded fit of the movable end 6 is cancelled, the wrench structure 5 can be rotated on the side of the adjustment end 7, so that the locking block 10 can lock the door panel 1 from Figure 1 The locked state is changed to the unlocked state, and the rotation of the wrench structure 5 can refer to Figure 3 , from horizontal to tilted state.

[0028] In order to increase the concealment of the concealed locking device, a turntable assembly 4 is further provided on both the inner and outer sides of the door panel 1. The turntable assembly 4 is provided with a transmission structure and a locking rod 11 on the inner side of the door panel 1. When the turntable assembly 4 is rotated, the transmission structure operates so that the locking rod 11 extends into the door frame 2 to form a lock. In normal use, the turntable assembly 4 can be used to lock. At this time, when people see the turntable assembly 4, the general way of opening is to rotate the turntable assembly 4 to lock or unlock. At this time, it is even more difficult to think that the wrench structure 5 is also a locking device for locking or unlocking. Therefore, at this time, the wrench structure 5 is rotated to the position as shown in the figure. Figure 1 When the door panel 1 is in the locked state, a general user cannot open or close the door panel 1 by simply rotating the rotary disk assembly 4, thereby having a good concealed locking effect. As for how the rotary disk assembly 4 drives the locking rod 11 to rise when it rotates, it is a conventional prior art in the art, and this embodiment does not specifically limit its specific structure.

[0029] The transmission matching structure includes a transmission hole provided at the adjustment end 7 and a transmission part 53 provided on the wrench structure 5, and the cross-sections of the transmission roller and the transmission part 53 are non-circular. The transmission part 53 can be a common hexagonal protrusion, and the transmission hole is a hexagonal hole, and such matching can be used for transmission.

[0030] like Figure 5 As shown, the wrench structure 5 is semi-rectangular, and an adjusting portion 51 and a matching portion 52 are respectively arranged on both sides of the wrench structure 5. The outer sides of the adjusting portion 51 and the matching portion 52 are respectively provided with threads that match the adjusting end 7 and the movable end 6; the transmission portion 53 is arranged at the bottom of the adjusting portion 51. The shape of the wrench structure 5 configured in this way is similar to a door handle. Figure 1 In the installation state shown, it is generally not associated with a structure for locking or unlocking, so it is concealed and achieves the purpose of concealed locking.

[0031] A connecting rod assembly 9 is provided inside the door panel 1. The connecting rod assembly 9 includes a locking block 10 for locking with the door frame 2. A cam 12 is fixedly mounted on the door panel 1. A connecting assembly 7b is provided through the center of the cam 12. The connecting rod assembly 9 passes through the door panel 1 and an adjusting end 7 is provided on the outside of the door panel 1. When the adjusting end 7 rotates, the cam 12 rotates, and then the locking block 10 rotates to lock or unlock with the door frame 2. Figure 2The connecting rod assembly 9 shown in the figure has two vertical rods, two horizontal rods and four hinged parts arranged for rotation at four corners. The four hinged parts are connected to the corresponding rods in a hinged manner. Figure 2 When the cam 12 shown rotates, the vertical rod moves to drive the two hinged parts on the right to rotate, so that the two horizontal rods rotate and the other vertical rod also rotates accordingly. Figure 2 The locking block 10 shown will also rotate to lock or unlock. The above is only a principle description. In fact, the unlocking and locking of the locking block 10 driven by the connecting rod assembly 9 is a prior art. In fact, other feasible structures can be replaced according to the use requirements, which will not be described in detail here.

[0032] As shown Figure 2 , Figure 5 As shown, the connecting rod assembly 9 is provided with an inner lever 13 at one end on the inner side of the door panel 1. The inner lever 13 is an L-shaped round rod. The inner lever 13 is arranged on the inner side of the door panel 1, so it does not need to perform concealment or anti-theft functions.

[0033] The part of the connecting rod assembly 9 that extends out of the outside of the door panel 1 forms a connecting portion, and an adjusting sleeve 7a is threadedly installed on the outside of the connecting portion. The height of the adjusting sleeve 7a is consistent with the height of the connecting assembly 7b. The transmission hole is set on the outside of the connecting assembly 7b, and the outer diameter of the adjusting end 7 is the same as the inner diameter of the adjusting sleeve 7a. The adjusting sleeve 7a is initially just sleeved on the outside of the connecting assembly 7b. At this time, the top of the adjusting sleeve 7a and the top of the connecting assembly 7b are at the same height. After the transmission part 53 of the wrench structure 5 is inserted into the transmission hole of the connecting assembly 7b, the adjusting sleeve 7a is rotated to move upward, and the part of the adjusting sleeve 7a that moves up and protrudes from the connecting assembly 7b is threadedly connected to the adjusting end 7. At this time, the wrench structure 5 is fixed on one side of the adjusting end 7; the installation method of the movable end 6 is similar. When it is necessary to use the wrench structure 5 to open the lock block 10 to lock the door panel 1, one side of the movable end 6 is unloaded, and the wrench structure 5 can be rotated around one side of the adjusting end 7 as a fulcrum (refer to Figure 3 ), when rotating, the adjusting sleeve 7a can obviously rotate and move, so it will not interfere with the adjustment of the wrench structure 5. The above rotation is transmitted through the transmission part 53 and the transmission hole to deform the connecting rod assembly 9, thereby causing the locking block 10 to present as follows Figure 2 In fact, in normal use, the locking rod 11 can be moved upward by rotating the rotary assembly 4 and then snapped into the top of the door frame 2 to complete the fixation. In special use environments, the lock block 10 is locked by the wrench structure 5. After locking, the wrench structure 5 can be set as follows Figure 1 The open state is as shown in Figure 3 In this way, after the wrench structure 5 is locked, the wrench structure 5 is adjusted and then the movable end 6 is fixed to form a state as shown in FIG. Figure 1In the state shown, the wrench structure 5 actually looks like a handle 8 for opening and closing the door, so it is concealed. Only people who know how to use it can open or close the civil defense door, thereby achieving the purpose of concealed locking and having a certain anti-theft function.

[0034] In order to facilitate the door opening when the wrench structure 5 is used, Figure 1 As shown, a handle 8 is also provided on the front side of the door panel 1 .

[0035] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the present application. The present application may be subject to various changes and improvements without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A concealed locking device for a civil air defense door, installed on a door panel and a door frame, characterized in that: A locking block is provided on the inner side of the door panel, and an adjusting end is provided on the outer side of the door panel. When the adjusting end is rotated, the position of the locking block changes, so that the locking block and the door frame are locked or unlocked; the door panel is also provided with a movable end, and the outer sides of the movable end and the adjusting end are respectively threadedly provided with fixing sleeves, and the top ends of the fixing sleeves on both sides are simultaneously threadedly assembled with wrench structures, and a transmission matching structure is formed between the wrench structure and the adjusting end.

2. The concealed locking device for civil air defense door according to claim 1, characterized in that: The door panel is also provided with a turntable assembly on both the inner and outer sides. The turntable assembly is provided with a transmission structure and a locking rod on the inner side of the door panel. When the turntable assembly is rotated, the transmission structure operates to allow the locking rod to extend into the door frame to form a lock.

3. The concealed locking device for civil air defense door according to claim 1, characterized in that: The transmission matching structure comprises a transmission hole arranged at the adjustment end and a transmission part arranged on the wrench structure, and the cross-sections of the transmission hole and the transmission part are non-circular.

4. The concealed locking device for a civil air defense door according to claim 3, characterized in that: The wrench structure is semi-rectangular, and an adjusting portion and a matching portion are respectively provided on both sides of the wrench structure. The outer sides of the adjusting portion and the matching portion are respectively provided with threads matching with the adjusting end and the movable end; the transmission portion is arranged at the bottom of the adjusting portion.

5. The concealed locking device for civil air defense door according to claim 3, characterized in that: A connecting rod assembly is provided on the inner side of the door panel, and the connecting rod assembly includes a locking block for cooperating with the door frame to lock. A cam is fixedly installed on the door panel; a connecting assembly is provided through the center of the cam, the connecting rod assembly passes through the door panel, and an adjusting end is provided on the outer side of the door panel, and when the adjusting end rotates, the cam is rotated, and then the locking block is rotated to lock or unlock with the door frame.

6. The concealed locking device for civil air defense door according to claim 5, characterized in that: The connecting rod assembly is provided with an inner lever at one end of the inner side of the door panel, and the inner lever is an L-shaped round rod.

7. The concealed locking device for civil air defense door according to claim 5, characterized in that: The part of the connecting rod assembly extending out of the outside of the door panel forms a connecting portion, an adjustment sleeve is threadedly installed on the outside of the connecting portion, the height of the adjustment sleeve is consistent with the height of the connecting assembly, the transmission hole is arranged on the outside of the connecting assembly, and the outer diameter of the adjustment end is the same as the inner diameter of the adjustment sleeve.

8. The concealed locking device for civil air defense door according to claim 1, characterized in that: A handle is also provided on the front of the door panel.

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