Door leaf anti-falling structure

Abstract

The utility model provides a door leaf anti-falling structure which comprises a door frame and a door body, the door frame and the door body are connected through a steel wire, a rotating shaft and a lock body, a lock groove and a through hole are formed in the door body, a movable lock head is arranged on the lock body, the lock body penetrates through the through hole to be arranged in the lock groove, and the movable lock head extends out to enable the lock body not to penetrate through the through hole. The steel wire penetrates through the rotating shaft to be connected with the lock body, lock catches are arranged at the two ends of the steel wire, and the upper end of the steel wire is movably matched with the top of the door frame. According to the anti-falling structure for the door leaf, the lock body which cannot be detached is assembled in the door body, the steel wire penetrates through the lock body and the rotating shaft, so that the lock body can be pulled by the lock catch at the bottom of the steel wire when the door body falls off, the lock body and the door body cannot fall off continuously, and casualties caused by complete falling of the door body after long-term use are avoided; and the locking structure is convenient to integrally mount and stable in locking.

Description

Technical Field

[0001] This utility model relates to the field of door technology, and in particular to a door leaf anti-fall-off structure. Background Technology

[0002] Door hinge structures often have problems after installation, making them prone to collapse during use and causing safety accidents. Specifically, improper installation or excessive gaps between the door and hinges can cause the door to collapse, resulting in injury or death. Alternatively, prolonged use can cause the door to sag, leading to the upper hinge pivot detaching from the lower hinge, causing the door to collapse. Existing door installation structures lack mechanisms to pull or tug the door, and the hinges will inevitably wear down after long-term axial rotation, eventually leading to door collapse. Therefore, existing door installations all pose certain safety hazards. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] The problem to be solved by this utility model is to provide a door leaf anti-fall-off structure to overcome the defect in the prior art that the door leaf structure cannot pull the door body, causing the door body to collapse easily.

[0005] (II) Technical Solution

[0006] To solve the aforementioned technical problem, this utility model provides a door leaf anti-fall-off structure, including a door frame and a door body. The door frame and the door body are connected by a steel wire, a pivot, and a lock body. The door body is provided with a lock groove and a through hole. The lock body is provided with a movable lock head. The lock body passes through the through hole and is placed in the lock groove, while the movable lock head extends out to prevent the lock body from passing through the through hole. The two ends of the pivot are respectively inserted into the through hole and the door frame. The steel wire passes through the pivot and connects to the lock body, and both ends are provided with lock buckles. The upper end of the steel wire is movably fitted to the top of the door frame.

[0007] In some embodiments, the door frame is provided with a mounting base, a limit rod is hinged to the mounting base, a limit groove is provided on one side of the rotating shaft, and the end of the limit rod is placed in the limit groove; a hollow mounting column is provided on one side of the mounting base and the bottom is through, the rotating shaft is inserted into the mounting column and passes through the mounting base, a clearance groove is provided on one side of the mounting column, and the end of the limit rod passes through the clearance groove.

[0008] In some embodiments, the mounting base is provided with a hinge seat, the limiting rod is movably mounted on the hinge seat, the mounting base is located on one side of the hinge seat with an opening and is equipped with an adjusting pin, and the top of the adjusting pin is connected to the limiting rod through a universal joint.

[0009] In some embodiments, the mounting base is further provided with a clearance hole, the protrusion at the bottom of the limiting rod passes through the clearance hole, the top of the door body is provided with a fixing bracket at the top of the lock groove, and the through hole is provided on the fixing bracket.

[0010] In some embodiments, the steel wire passes through the lock body and the latch is placed at the lower end of the lock body. The lock body is also equipped with a spring and a beveled locking block. The top of the spring is provided with a spring fixing plate, the top of the beveled locking block abuts against the spring, the inner side of the movable lock head is a bevel, the bottom bevel of the beveled locking block fits against the bevel of the movable lock head, and the outer side of the movable lock head passes through the lock body.

[0011] In some embodiments, the latch is placed in the mounting groove of the lock body and a bolt passes through the mounting groove on one side of the lock body. A spring and a spring fixing plate are horizontally installed inside the lock body. The two ends of the spring abut against the spring fixing plate and the movable lock head respectively, pushing one end of the movable lock head through the lock body.

[0012] In some embodiments, a lower door seat is also installed at the bottom of the door body, and a support shaft is provided on the lower door seat.

[0013] (III) Beneficial Effects

[0014] This utility model provides a door leaf anti-falling structure, which assembles a non-removable lock body inside the door. A steel wire passes through the lock body and the pivot, so that when the door falls, the lock body can be pulled by the bottom buckle of the steel wire, preventing the lock body and the entire door from falling further. This avoids the door from falling completely after long-term use and causing personal injury or death. Moreover, the locking structure is easy to install and the locking is stable. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of a door leaf anti-fall-off structure according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a door leaf anti-fall-off structure according to the present invention;

[0018] Figure 3 This utility model relates to a door leaf anti-fall-off structure. Figure 2 Enlarged view of section A in the middle;

[0019] Figure 4 This is a three-dimensional view of the internal structure of a door leaf anti-fall-off structure according to the present invention;

[0020] Figure 5 This is a perspective view of the internal structure of the lock body of the door leaf anti-fall-off structure of this utility model;

[0021] Figure 6 This is a cross-sectional view of a second embodiment of the door leaf anti-fall-off structure of this utility model;

[0022] Figure 7 This utility model relates to a door leaf anti-fall-off structure. Figure 6 Enlarged view of section B in the middle.

[0023] The component names corresponding to the various labels in the diagram are as follows: 1. Door frame; 2. Door body; 3. Steel wire; 4. Spindle; 5. Lock body; 6. Lock groove; 7. Through hole; 8. Movable lock head; 9. Locking buckle; 10. Mounting base; 11. Limiting rod; 12. Limiting groove; 13. Mounting column; 14. Clearance groove; 15. Hinge seat; 16. Adjusting pin; 17. Clearance hole; 18. Protrusion; 19. Fixing bracket; 20. Spring; 21. Angled lock block; 22. Spring fixing plate; 23. Mounting groove; 24. Bolt; 25. Lower door seat; 26. Support shaft; 27. Universal rod. Detailed Implementation

[0024] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0025] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0028] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0029] Example 1:

[0030] See Figures 1-5 This utility model provides a door leaf anti-fall structure, including a door frame 1 and a door body 2. The door frame 1 and the door body 2 are connected by a steel wire 3, a pivot 4, and a lock body 5. The door body 2 has a lock groove 6 and a through hole 7. The lock body 5 has a movable lock head 8. The lock body 5 is a cylinder with a diameter slightly smaller than the diameter of the through hole 7. The lock body 5 passes through the through hole 7 and is placed in the lock groove 6, and the movable lock head 8 extends out, preventing the lock body 5 from passing through the through hole 7. Therefore, the lock body 5 cannot be disassembled after assembly. The two ends of the pivot 4 are inserted into the through hole 7 and the door frame 1, respectively. The door body 2 can rotate to open and close along the pivot 4. The steel wire 3 passes through the pivot 4 and connects to the lock body 5, and both ends are provided with a buckle 9. The buckle 9 prevents the two ends of the steel wire 3 from passing through the lock body 5 and the pivot 4. The upper end of the steel wire 3 is movably fitted to the top of the door frame 1. Therefore, when the door body 2 falls off, the steel wire 3 and the buckle 9 can hold the lock body 5 in place, preventing the entire door body 2 from falling off.

[0031] In some embodiments, such as Figures 2-5As shown, a mounting base 10 is provided on the door frame 1, and a limiting rod 11 is hinged to the mounting base 10. A limiting groove 12 is provided on one side of the rotating shaft 4, and the end of the limiting rod 11 is placed in the limiting groove 12. A hinge seat 15 is provided on the mounting base 10, and the limiting rod 11 is movably mounted on the hinge seat 15. The mounting base 10 is located on one side of the hinge seat 15 and has an adjusting pin 16 installed thereon. The top of the adjusting pin 16 is connected to the limiting rod 11 through a universal joint 27. A hollow mounting post 13 is provided on one side of the mounting base 10 and has a through bottom. The rotating shaft 4 The rod 11 is inserted into the mounting post 13 and passes through the mounting base 10. One side of the mounting post 13 has a clearance groove 14, and the end of the limiting rod 11 passes through the clearance groove 14. During assembly, one end of the limiting rod 11 needs to be lifted using the adjusting pin 16, and the rotating shaft 4 is inserted from the mounting post 13. After releasing the adjusting pin 16, the end of the limiting rod 11 is engaged in the limiting groove 12 of the rotating shaft 4. At this point, the rotating shaft 4 can no longer disengage from the mounting post 13, thus achieving limiting. The adjusting pin 16 can be adjusted according to the different distances between the door body and the door frame to facilitate the assembly of various accessories. In this example, a lower door seat 25 is installed at the bottom of the door body 2. A support shaft 26 is provided on the lower door seat 25 to bear the load. An obstacle hole 17 is also provided on the mounting base 10. The protrusion 18 at the bottom of the limit rod 11 passes through the obstacle hole 17. A fixing bracket 19 is provided at the top of the door body 2, located at the top of the lock groove 6. A through hole 7 is provided on the fixing bracket 19. A steel wire 3 passes through the lock body 5, and the lock buckle 9 is placed at the lower end of the lock body 5. A spring 20 and a slanted lock block 21 are also installed inside the lock body 5. A spring fixing plate 22 is provided at the top of the spring 20. The top of block 21 rests against spring 20. The inner side of movable lock head 8 is inclined. The bottom inclined opening of inclined lock block 21 fits with the inclined surface of movable lock head 8. The outer side of movable lock head 8 passes through lock body 5. The inclined lock block 21 and spring 20 are installed into lock body 5. Spring fixing plate 22 is covered. Spring fixing plate 22 can drive spring 20 to cooperate with the inclined surface of inclined lock block 21 and the inclined surface of movable lock head 8, pushing movable lock head 8 out. Therefore, after lock body 5 passes through through hole 7, movable lock head 8 will extend and limit lock body 5 in lock groove 6.

[0032] Example 2:

[0033] like Figure 6 and Figure 7 As shown, the difference between this embodiment and embodiment one is that: the latch 9 is placed in the mounting groove 23 of the lock body 5 and a bolt 24 is provided on one side of the lock body 5 to pass through the mounting groove 23. The bolt 24 cooperates with the latch 9 to fix the steel wire 3 in the lock body 5. A spring 20 and a spring fixing plate 22 are installed horizontally in the lock body 5. The two ends of the spring 20 abut against the spring fixing plate 22 and the movable lock head 8 respectively, pushing one end of the movable lock head 8 out and through the lock body 5. Similarly, after the lock body 5 passes through the through hole 7, the movable lock head 8 can be ejected to lock the lock body 5.

[0034] This utility model provides a door leaf anti-falling structure, which assembles a non-removable lock body inside the door. A steel wire passes through the lock body and the pivot, so that when the door falls, the lock body can be pulled by the bottom buckle of the steel wire, preventing the lock body and the entire door from falling further. This avoids the door from falling completely after long-term use and causing personal injury or death. Moreover, the locking structure is easy to install and the locking is stable.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A door leaf anti-falling structure comprising a door frame (1) and a door body (2), characterized in that: The door frame (1) and the door body (2) are connected through a steel wire (3), a rotating shaft (4) and a lock body (5), the door body (2) is provided with a lock groove (6) and a through hole (7), the lock body (5) is provided with a movable lock head (8), the lock body (5) passes through the through hole (7) and is placed in the lock groove (6), and the movable lock head (8) is extended to make the lock body (5) unable to pass through the through hole (7), both ends of the rotating shaft (4) are inserted into the through hole (7) and the door frame (1) respectively, the steel wire (3) passes through the rotating shaft (4) to connect the lock body (5), and both ends of the steel wire (3) are provided with a lock buckle (9), and the upper end of the steel wire (3) is movably matched in the top of the door frame (1).

2. A door leaf anti-drop arrangement according to claim 1, characterized in that: The door frame (1) is provided with a mounting seat (10), the mounting seat (10) is hingedly connected with a limiting rod (11), one side of the rotating shaft (4) is provided with a limiting groove (12), and the end of the limiting rod (11) is placed in the limiting groove (12).

3. A door leaf anti-drop arrangement according to claim 2, characterised in that: One side of the mounting seat (10) is provided with a hollow mounting column (13) and a bottom through hole, the rotating shaft (4) is inserted into the mounting column (13) and passes through the mounting seat (10), one side of the mounting column (13) is provided with an avoiding groove (14), and the end of the limiting rod (11) passes through the avoiding groove (14).

4. A door leaf anti-drop arrangement according to claim 2, characterised in that: The mounting seat (10) is provided with a hinged seat (15), the limiting rod (11) is movably mounted on the hinged seat (15), the mounting seat (10) is opened on one side of the hinged seat (15) and is provided with an adjusting pin (16), and the top of the adjusting pin (16) is connected with the limiting rod (11) through a universal rod (27).

5. A door leaf anti-drop arrangement according to claim 2, characterised in that: The mounting seat (10) is also provided with an avoiding hole (17), and the protruding part (18) at the bottom of the limiting rod (11) passes through the avoiding hole (17).

6. A door leaf anti-drop arrangement according to claim 1, characterized in that: The top of the door body (2) is provided with a fixed frame (19) on the top of the lock groove (6), and the through hole (7) is arranged on the fixed frame (19).

7. A door leaf anti-drop arrangement according to claim 1, characterized in that: The steel wire (3) passes through the lock body (5), and the lock buckle (9) is arranged at the lower end of the lock body (5), the lock body (5) is further provided with a spring (20) and an inclined lock block (21), the top of the spring (20) is provided with a spring fixing disc (22), the top of the inclined lock block (21) abuts against the spring (20), the inner side of the movable lock head (8) is inclined, the bottom inclined mouth of the inclined lock block (21) is matched with the inclined surface of the movable lock head (8), and the outer side of the movable lock head (8) passes through the lock body (5).

8. A door leaf anti-drop arrangement according to claim 1, characterized in that: The lock buckle (9) is arranged in the mounting groove (23) of the lock body (5), one side of the lock body (5) is provided with a bolt (24) passing through the mounting groove (23), the spring (20) and the spring fixing disc (22) are transversely arranged in the lock body (5), the two ends of the spring (20) abut against the spring fixing disc (22) and the movable lock head (8) respectively, and one end of the movable lock head (8) is pushed out to pass through the lock body (5).

9. A door leaf anti-drop arrangement according to claim 1, characterized in that: The bottom of the door body (2) is further provided with a lower door seat (25), and the lower door seat (25) is provided with a supporting shaft (26).

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