A type of security door with reinforced door frame edges.

Abstract

This utility model relates to the field of security door technology and discloses a security door with reinforced door frame edges. It includes an outer door frame, with side frames fixedly connected to the left and right sides of the inner wall of the outer door frame, and inner door frames fixedly connected to the left and right sides of the inner walls of the side frames. Reinforcing mechanisms are provided on the left and right sides of the outer door frame, and a safety protection mechanism is provided on the inner wall of the outer door frame. Each reinforcing mechanism includes an embedded block. Fixing blocks are fixedly connected to the left and right sides of the outer door frame, with embedded grooves and through holes on the left and right sides of the interior of each fixing block. In this utility model, through the embedded cooperation of the embedded blocks and fixing blocks, combined with the installation of an expansion tube, countersunk bolts, and hexagonal nuts, the expansion tube can expand and fix within the through holes, thereby achieving expansion support for the outer door frame and fixing blocks, effectively enhancing the structural strength of the outer door frame edge.

Description

Technical Field

[0001] This utility model relates to the field of security door technology, and in particular to a security door with reinforced door frame edges. Background Technology

[0002] When reinforcing the edges of a security door frame, a type of security door with reinforced edges is often used. This type of security door is based on an ordinary security door, but with special reinforcement treatment on the edges of the frame. This enhances the overall strength of the frame, effectively resists external impacts, prying, and other illegal acts of damage, greatly improves the anti-theft performance of the security door, extends its service life, and better protects the safety of homes and places, providing people with more reliable security protection.

[0003] A reinforced security door with a reinforced frame involves several steps. First, the door frame is designed and manufactured to ensure sufficient strength and stability. Second, reinforcing materials, such as steel plates or aluminum alloys, are added to the edges of the frame to improve its overall rigidity and impact resistance. Next, the door leaf is connected to the frame via hinges, and locks and other security devices are installed to ensure proper closing and locking. Finally, the entire security door undergoes surface treatment, such as spraying rust-proof paint or electroplating, to enhance its corrosion resistance and aesthetics, thus protecting the safety of the home and property.

[0004] Existing security door technologies, particularly those with reinforced door frame edges, suffer from significant deficiencies. Their reinforcement measures for the door frame edges are severely inadequate. Most security doors use only conventional metal frames, making them highly susceptible to deformation and breakage under violent attack, such as prying or impacts. This leads to structural failure and renders the door ineffective in preventing illegal intrusion. Furthermore, the current connection methods between the door frame and the wall are relatively simple, failing to effectively distribute external forces when the door frame edges are under stress, further exacerbating damage. Therefore, this paper proposes a security door with reinforced door frame edges to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a security door with reinforced door frame edges, aiming to improve the problem that some existing devices cannot reinforce the door frame edges of security doors.

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

[0007] A reinforced security door with a reinforced door frame includes an outer door frame, side frames are fixedly connected to the left and right sides of the inner wall of the outer door frame, inner door frames are fixedly connected to the left and right sides of the inner wall of the side frames, reinforcement mechanisms are provided on the left and right sides of the outer door frame, and a security protection mechanism is provided on the inner wall of the outer door frame.

[0008] The reinforcing mechanism includes an embedded block. Fixed blocks are fixedly connected to the left and right sides of the outer door frame. Embedding grooves are opened on the left and right sides of the interior of the fixed block. Through holes are opened on the left and right sides of the interior of the fixed block. Expansion tubes are fixedly connected to the left and right sides of the interior of the through holes. Countersunk bolts are threaded into the interior of the expansion tubes. Hexagonal nuts are threaded into the exterior of the countersunk bolts. An adjustment component is provided at the bottom of the countersunk bolts. An expansion tube head is fixedly connected to the exterior of the adjustment component. The embedded block is fixedly connected to the left and right sides of the outer wall of the outer door frame.

[0009] As a further description of the above technical solution:

[0010] The safety protection mechanism includes a hinge, a door leaf is fixedly connected to the outer side of the hinge, a door lock is fixedly connected to the outer left side of the door leaf, a lock cylinder is fixedly connected to the inner side of the door lock, the outer side of the hinge is fixedly connected to the outer side of the inner door frame, the outer side of the lock cylinder is fixedly connected to the inside of the door leaf, and a lock tongue hole is opened on the inner side of the inner door frame.

[0011] As a further description of the above technical solution:

[0012] The adjusting assembly includes an expansion head, the outer part of which is rotatably connected to the inside of the expansion tube head, the outer part of which is fixedly connected to the inside of the expansion tube, and the outer part of which is fixedly connected to the outside of the countersunk bolt.

[0013] As a further description of the above technical solution:

[0014] A drive gear is fixedly connected to the outer right side of the lock cylinder, and a driven gear is fixedly connected to the inside of the door leaf. The drive gear is rotatably connected to the outside of the door leaf, and the drive gear and the driven gear are meshed with each other.

[0015] As a further description of the above technical solution:

[0016] A transmission bracket is slidably connected to the outer side of the driven gear, and a swing groove is provided inside the transmission bracket;

[0017] As a further description of the above technical solution:

[0018] The swing groove is rotatably connected to a swing shaft inside, and an idler bar is fixedly connected to one side of the transmission bracket.

[0019] As a further description of the above technical solution:

[0020] The bottom of the idler bar is meshed with a transmission gear, and a straight locking tongue is fixedly connected to the outer side of the transmission bracket. The outer side of the straight locking tongue is fixedly connected to the inner side of the locking tongue hole. The driving gear and the transmission gear are meshed with each other.

[0021] As a further description of the above technical solution:

[0022] The external part of the embedded block is fixedly connected to the inside of the embedded groove, and the external part of the through hole is opened inside the embedded groove.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by embedding and fixing blocks, and combining the installation of expansion tube one, countersunk bolt and hexagonal nut, expansion tube one can be expanded and fixed in the through hole. At the same time, the expansion head in the bottom adjustment component of the countersunk bolt rotates and drives the expansion tube head to expand outward, thereby realizing expansion support for the outer door frame and fixing block. This can effectively enhance the structural strength of the outer door frame edge, improve the stability of the security door by dispersing the force, significantly enhance its impact resistance and deformation resistance, provide more reliable structural support for the security door, and ensure safety and durability.

[0025] 2. In this utility model, through the ingenious design of gear transmission, swing groove sliding, and gear and idler bar meshing, the rotational motion of the lock cylinder is efficiently converted into the extension and retraction motion of the straight bolt, realizing the rapid locking and opening of the door. This not only ensures the stability and reliability of the transmission and reduces malfunctions caused by loose or stuck parts, but also significantly improves the convenience of operation. Users only need to turn the lock cylinder to easily complete the locking and opening actions. At the same time, the cooperation between the straight bolt and the bolt hole enhances the anti-theft performance of the door, effectively resists external damage, and provides users with safe and reliable protection, combining practicality and security. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a door frame edge-reinforced security door proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the hinge structure of a door frame edge-reinforced security door proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the side frame of a door frame reinforced with edge reinforcement proposed in this utility model.

[0029] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 5This is a schematic diagram of the lock cylinder structure of a door frame edge-reinforced security door proposed in this utility model;

[0031] Figure 6 for Figure 2 Enlarged view of point B in the middle.

[0032] Legend:

[0033] 1. Outer door frame; 2. Side frame; 3. Inner door frame; 4. Embedded block; 5. Fixing block; 6. Embedded groove; 7. Through hole; 8. Expansion tube one; 9. Countersunk bolt; 10. Hex nut; 11. Expansion head; 12. Expansion tube head; 13. Hinge; 14. Door leaf; 15. Door lock; 16. Lock cylinder; 17. Drive gear; 18. Driven gear; 19. Transmission bracket; 20. Swing groove; 21. Swing shaft; 22. Idle bar; 23. Transmission gear; 24. Straight latch; 25. Latch hole. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 and Figure 3 The present invention provides an embodiment of a door frame edge-reinforced security door, including an outer door frame 1, which serves as the external frame of the entire door, providing basic support and protection. Side frames 2 are fixedly connected to the left and right sides of the inner wall of the outer door frame 1 to enhance the overall stability and impact resistance of the door frame. Inner door frames 3 are fixedly connected to the left and right sides of the inner wall of the side frames 2 to provide additional support and protection, enhancing the deformation resistance of the door frame. Reinforcing mechanisms are provided on the left and right sides of the outer wall of the outer door frame 1, and a safety protection mechanism is provided on the inner wall of the outer door frame 1.

[0036] The reinforcing mechanism includes an embedded block 4, which, in cooperation with the embedded groove 6, can effectively enhance the structural strength of the edge of the outer door frame 1 and distribute the force. Fixing blocks 5 are fixedly connected to the left and right sides of the outer door frame 1. The embedded block 4, expansion tube 8, and countersunk bolt 9 can be installed and fixed through the embedded groove 6 and through hole 7 on the fixing block 5, thereby realizing the function of the reinforcing mechanism. The left and right sides of the inside of the fixing block 5 are provided with embedded grooves 6 to provide an installation position for the embedded block 4, so that the embedded block 4 can fit tightly with the fixing block 5, thereby enhancing the structural strength of the edge of the outer door frame 1.

[0037] The fixing block 5 has through holes 7 on both the left and right sides inside. An expansion tube 8 is first installed in the through hole 7, and then a countersunk bolt 9 passes through the expansion tube 8 and is tightened with a hexagonal nut 10 to achieve fixation and connection. The expansion tube 8 is fixedly connected to both the left and right sides inside the through hole 7. When the countersunk bolt 9 is tightened, the expansion tube 8 expands outward through the thread engagement with the countersunk bolt 9, thus tightly fixing it in the through hole 7. The countersunk bolt 9 is threaded inside the expansion tube 8. The countersunk bolt 9 passes through the expansion tube 8 and is tightened with a hexagonal nut 10 to achieve a fixed connection of the fixing block 5.

[0038] The countersunk bolt 9 has an external threaded connection to a hexagonal nut 10, which works in conjunction with the countersunk bolt 9. By tightening the hexagonal nut 10, the countersunk bolt 9 can be tightly fixed to the expansion tube 8. The bottom of the countersunk bolt 9 is provided with an adjustment component, which works in conjunction with the expansion tube head 12. By rotating the countersunk bolt 9, the expansion head 11 moves forward, thereby opening the expansion tube head 12. The expansion tube head 12 is externally fixedly connected to the adjustment component. When the expansion head 11 in the adjustment component rotates, it will drive the expansion tube head 12 to move, thereby causing the expansion tube head 12 to expand or contract outward, realizing the expansion and support of the outer door frame 1 and the fixing block 5, enhancing the structural strength of the outer door frame 1. The embedded block 4 is externally fixedly connected to the left and right sides of the outer wall of the outer door frame 1.

[0039] The safety protection mechanism includes a hinge 13, which is used to realize the rotation opening and closing function of the door leaf 14. The door leaf 14 is fixedly connected to the outer side of the hinge 13. The door leaf 14 is connected to the inner door frame 3 through the hinge 13 to realize the locking function. The door lock 15 is fixedly connected to the outer left side of the door leaf 14, which is used to install the lock tongue and transmission mechanism. The lock cylinder 16 is fixedly connected to the inner side of the door lock 15.

[0040] When the lock cylinder 16 rotates, the drive gear 17 rotates accordingly, driving the driven gear 18 and the transmission bracket 19 to move, ultimately causing the straight lock tongue 24 to insert or retract into the lock tongue hole 25 of the inner door frame 3, thereby locking or unlocking. The outer side of the hinge 13 is fixedly connected to the outer side of the inner door frame 3, and the outer side of the lock cylinder 16 is fixedly connected to the inside of the door leaf 14. The lock tongue hole 25 is provided on the inner side of the inner door frame 3.

[0041] Reference Figure 3 and Figure 6 The adjustment assembly includes an expansion head 11, which is externally rotatably connected to the inside of an expansion tube head 12. The expansion head 11 is externally fixedly connected to the inside of an expansion tube 8. The expansion head 11 is externally fixedly connected to the outside of a countersunk bolt 9. A drive gear 17 is fixedly connected to the right side of the lock cylinder 16, which transmits the operating force of the door lock 15 to the driven gear 18 and the transmission gear 23. The linkage between the transmission bracket 19 and the straight lock tongue 24 is realized through gear meshing. The rotation direction of the drive gear 17 determines the extension or retraction of the lock tongue.

[0042] A driven gear 18 is fixedly connected inside the door leaf 14. When the driving gear 17 rotates, the driven gear 18 rotates accordingly. It drives the idler bar 22 and the transmission gear 23 through the swing groove 20 and swing shaft 21 of the transmission bracket 19, and finally realizes the extension and retraction of the straight locking tongue 24. The external rotatable connection of the driving gear 17 is inside the door leaf 14. The driving gear 17 and the driven gear 18 are meshed with each other. The transmission bracket 19 is slidably connected to the external side of the driven gear 18 and cooperates with the shaft of the driven gear 18 through the swing groove 20.

[0043] When the driven gear 18 rotates, the swing shaft 21 slides in the swing groove 20, causing the transmission bracket 19 to swing as a whole, which in turn pushes the idler bar 22 and the transmission gear 23 to move, and finally drives the extension and retraction of the straight locking tongue 24. The transmission bracket 19 has a swing groove 20 inside. When the driven gear 18 rotates, the swing shaft 21 slides in the swing groove 20, causing the transmission bracket 19 to swing as a whole, thereby realizing the linear movement of the locking tongue.

[0044] Reference Figure 4 and Figure 6 The swing groove 20 is rotatably connected to the swing shaft 21. When the driven gear 18 rotates, the swing shaft 21 rotates accordingly and slides in the swing groove 20, causing the transmission bracket 19 to swing as a whole, thereby realizing the extension and retraction of the lock tongue. The outer side of the transmission bracket 19 is fixedly connected to the idler bar 22. When the transmission bracket 19 swings, the idler bar 22 moves accordingly, driving the transmission gear 23 to rotate, thereby driving the extension and retraction of the straight lock tongue 24.

[0045] The bottom of the idler bar 22 is engaged with a transmission gear 23, which converts the linear motion of the idler bar 22 into rotational motion and transmits power to the straight locking tongue 24 through gear engagement. The straight locking tongue 24 is fixedly connected to the outer side of the transmission bracket 19 to prevent the door leaf 14 from opening and closing. When the door lock 15 is operated, the straight locking tongue 24 extends and retracts under the drive of the transmission bracket 19 to complete the locking or unlocking action.

[0046] The straight locking tongue 24 is externally fixedly connected to the inside side of the locking tongue hole 25. The locking tongue hole 25 is used to accommodate the straight locking tongue 24 to lock the door leaf 14 and the inner door frame 3. The drive gear 17 and the transmission gear 23 are meshed with each other. The embedded block 4 is externally fixedly connected to the inside of the embedded groove 6. The through hole 7 is externally opened inside the embedded groove 6.

[0047] Working principle: When it is necessary to enhance the edge structural strength of the outer door frame 1, the embedded block 4 is first embedded into the embedded groove 6 of the fixing block 5. At this time, the through hole 7 is located inside the embedded groove 6. Then, the expansion tube 8 is installed in the through hole 7. The countersunk bolt 9 is passed through the expansion tube 8 and tightened with the hexagonal nut 10. During this process, the expansion tube 8 expands outward due to the thread engagement with the countersunk bolt 9 and is tightly fixed in the through hole 7. At the same time, the adjustment component at the bottom of the countersunk bolt 9 plays a role. The expansion head 11 rotates when the countersunk bolt 9 rotates. Since the external rotation of the expansion head 11 is connected to the inside of the expansion tube head 12, the rotation of the expansion head 11 will drive the expansion tube head 12 to move, causing it to expand outward, thereby expanding and supporting the outer door frame 1 and the fixing block 5, thereby enhancing the structural strength of the outer door frame 1, distributing the force, and improving the stability, impact resistance, and deformation resistance of the entire security door.

[0048] When it is necessary to close the door leaf 14, push the door leaf 14 to rotate around the hinge 13, bringing it closer to the inner door frame 3. Then, rotate the lock cylinder 16 of the door lock 15. The lock cylinder 16 drives the drive gear 17 to rotate. The drive gear 17 meshes with the driven gear 18, driving the driven gear 18 to rotate. When the driven gear 18 rotates, the swing shaft 21 on its shaft slides in the swing groove 20 of the transmission bracket 19, causing the transmission bracket 19 to swing as a whole. When the transmission bracket 19 swings, it drives the idler bar 22, which is fixedly connected to it, to move. The idler bar 22 meshes with the transmission gear 23, converting linear motion into rotational motion. The transmission gear 23 rotates and drives the straight latch 24 to extend. The straight latch 24 inserts into the latch hole 25 of the inner door frame 3, thus locking the door leaf 14. When it is necessary to open the door leaf 14, rotate the lock cylinder 16 in the opposite direction. The drive gear 17 rotates in the opposite direction, repeating the above transmission process, causing the straight latch 24 to retract and disengage from the latch hole 25. At this time, the door leaf 14 can be pushed to rotate around the hinge 13 to open.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A security door with reinforced door frame edges, comprising an outer door frame (1), characterized in that: The outer door frame (1) has side frames (2) fixedly connected to the left and right sides of its inner wall, and inner door frames (3) fixedly connected to the left and right sides of its inner wall. The outer door frame (1) has reinforcement mechanisms on its left and right sides, and the outer door frame (1) has safety protection mechanisms on its inner wall. The reinforcing mechanism includes an embedded block (4), and fixed blocks (5) are fixedly connected to the left and right sides of the outer door frame (1). An embedded groove (6) is opened on the left and right sides of the interior of the fixed block (5). A through hole (7) is opened on the left and right sides of the interior of the fixed block (5). An expansion tube (8) is fixedly connected to the left and right sides of the interior of the through hole (7). A countersunk bolt (9) is threaded inside the expansion tube (8). A hexagonal nut (10) is threaded outside the countersunk bolt (9). An adjustment component is provided at the bottom of the countersunk bolt (9). An expansion tube head (12) is fixedly connected to the outside of the adjustment component. The embedded block (4) is fixedly connected to the left and right sides of the outer wall of the outer door frame (1).

2. A security door with reinforced door frame edges according to claim 1, characterized in that: The security protection mechanism includes a hinge (13), a door leaf (14) is fixedly connected to the outer side of the hinge (13), a door lock (15) is fixedly connected to the outer left side of the door leaf (14), a lock cylinder (16) is fixedly connected to the inner side of the door lock (15), the outer side of the hinge (13) is fixedly connected to the outer side of the inner door frame (3), the outer side of the lock cylinder (16) is fixedly connected to the inside of the door leaf (14), and a lock tongue hole (25) is provided on the inner side of the inner door frame (3).

3. A security door with reinforced door frame edges according to claim 1, characterized in that: The adjusting assembly includes an expansion head (11), the outside of which is rotatably connected to the inside of the expansion tube head (12), the outside of which is fixedly connected to the inside of the expansion tube (8), and the outside of which is fixedly connected to the outside of the countersunk bolt (9).

4. A security door with reinforced door frame edges according to claim 2, characterized in that: A drive gear (17) is fixedly connected to the outside right side of the lock cylinder (16), and a driven gear (18) is fixedly connected to the inside of the door leaf (14). The drive gear (17) is rotatably connected to the outside of the door leaf (14), and the drive gear (17) and the driven gear (18) are meshed with each other.

5. A security door with reinforced door frame edges according to claim 4, characterized in that: A transmission bracket (19) is slidably connected to the outer side of the driven gear (18), and a swing groove (20) is provided inside the transmission bracket (19).

6. A security door with reinforced door frame edges according to claim 5, characterized in that: The swing groove (20) is rotatably connected to a swing shaft (21), and the transmission bracket (19) is fixedly connected to an idler bar (22) on its outer side.

7. A security door with reinforced door frame edges according to claim 6, characterized in that: The bottom of the idler bar (22) is meshed with a transmission gear (23), and a straight locking tongue (24) is fixedly connected to the outer side of the transmission bracket (19). The outer side of the straight locking tongue (24) is fixedly connected to the inner side of the locking tongue hole (25). The driving gear (17) and the transmission gear (23) are meshed with each other.

8. A security door with reinforced door frame edges according to claim 1, characterized in that: The external part of the embedded block (4) is fixedly connected to the inside of the embedded groove (6), and the external part of the through hole (7) is opened inside the embedded groove (6).

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