Double-open type thickened steel security door

Abstract

The utility model discloses a double-open type thickened steel security door, which relates to the technical field of security doors and comprises a door frame, door bodies are symmetrically and rotatably connected to the inner wall of the door frame, and limiting strips attached to the outer sides of the door bodies are fixedly mounted on the inner wall of the door frame. The control circuit board controls the gear motor to start and rotate for a set number of turns, when the driving gear rotates, the driven gear is driven to rotate, the two racks are driven to move up and down through the rotation of the driven gear, and the corresponding connecting rods are controlled to drive the inserting blocks to move through the up-down movement of the racks, so that the inserting blocks are moved out of the positioning grooves. The door body can be opened, only the fingerprint sensor is arranged on the front panel, no lock body exists, and lock picking is avoided. And the reinforcing ribs and the limiting clamping plates are arranged in the door body, so that the overall structural strength of the door body is improved, the impact resistance is improved, and the anti-theft capability is further improved.

Description

Technical Field

[0001] This utility model relates to the field of security door technology, specifically a double-leaf thickened steel security door. Background Technology

[0002] The full name of a security door is "anti-theft security door". It combines the functions of anti-theft and security. According to the "General Technical Conditions for Anti-theft Security Doors", a qualified security door cannot be pried open or have a 615 square centimeter opening made in the door leaf, or a 38 square millimeter opening made in a 150 square millimeter semicircle within 150 square millimeters of the locking point, using ordinary hand tools such as chisels, screwdrivers, and crowbars, or portable power tools such as electric drills, within 15 minutes.

[0003] Traditional security doors are unlocked with a key, and the handle is physically connected to the lock body, which poses a risk of being pried open. Furthermore, when a security door is subjected to a severe impact, its plate-like structure may deform due to the impact force, resulting in damage to the security door. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a double-leaf thickened steel security door, which solves the problems of the physical connection between the handle and the lock body, which poses a risk of lock prying, and the potential deformation of the security door's plate structure due to impact when subjected to severe impact.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-leaf thickened steel security door, comprising: a door frame, a door body symmetrically and rotatably connected to the inner wall of the door frame, a limiting strip fixedly installed on the inner wall of the door frame and fitting against the outer side of the door body, a front panel fixedly installed at the center of the outer surface of the door body, an inspection and decorative cover fixedly connected to the inner surface of the door body, and a rear panel corresponding to the front panel fixedly installed at the center of the surface of the inspection and decorative cover, and a handle installed on the inner side of the rear panel; an automatic unlocking mechanism for locking and unlocking the door frame and the door body; and reinforcing ribs evenly distributed inside the door body, with multiple limiting plates fixedly connected inside the door body and perpendicularly arranged to the reinforcing ribs.

[0006] Preferably, the automatic unlocking mechanism includes an installation groove inside the door body, and storage grooves communicating with the installation groove are provided on both the upper and lower sides of the door body. An insert block is slidably connected in the storage groove, and positioning grooves corresponding to the insert block are provided on both the upper and lower sides of the door frame.

[0007] Preferably, a mounting bracket is fixedly connected inside the mounting slot, a geared motor is fixedly mounted on the mounting bracket, a drive gear is fixedly connected to the output shaft end of the geared motor, a driven gear meshing with the drive gear is rotatably connected at the center of the mounting slot, a rack meshing with the driven gear is symmetrically slidably connected inside the mounting slot, and the two racks move in opposite directions, a slider connected to the rack is symmetrically slidably connected inside the mounting slot, and a connecting rod connected to the insert block is fixedly mounted on the slider.

[0008] Preferably, the mounting slot contains batteries that are electrically connected to the geared motor, the front panel, and the rear panel, respectively.

[0009] Preferably, the maintenance cover completely covers the mounting groove, and the maintenance cover has a charging port that is electrically connected to the battery.

[0010] Preferably, the front panel has a groove on the side near the door, and a fingerprint sensor is fixedly connected in the groove.

[0011] Preferably, the rear panel is fixedly connected to a control circuit board electrically connected to the fingerprint sensor, and a knob is rotatably connected to the side of the rear panel near the handle. Beneficial effects

[0012] This utility model provides a double-leaf thickened steel security door, which has at least the following advantages compared with the prior art:

[0013] When the fingerprint sensor recognizes a fingerprint that matches the set fingerprint, the control circuit board starts the geared motor, rotating it a set number of times. The rotation of the drive gear drives the driven gear, which in turn moves two racks up and down. This movement of the racks controls the corresponding connecting rod, moving the insert block out of its positioning slot until its top is flush with the top of the storage slot. At this point, the door can be opened. The front panel only has a fingerprint sensor; there is no lock body, preventing pickpocketing. The door's interior features reinforcing ribs and limit plates, improving overall structural strength, impact resistance, and further enhancing its anti-theft capabilities. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the inspection and decoration cover and rear panel of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the limiting strip of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the door body of this utility model;

[0018] Figure 5 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0019] In the diagram: 1. Door frame; 2. Door body; 3. Front panel; 4. Inspection and decorative cover; 5. Rear panel; 6. Handle; 7. Knob; 8. Limit bar; 9. Automatic unlocking mechanism; 901. Mounting slot; 902. Mounting bracket; 903. Gear motor; 904. Drive gear; 905. Driven gear; 906. Rack; 907. Slider; 908. Connecting rod; 909. Insert block; 910. Storage slot; 911. Positioning slot; 912. Battery; 10. Reinforcing rib; 11. Limit plate. Detailed Implementation

[0020] 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. Example

[0021] Please see Figure 1-5This utility model provides a technical solution: a door frame 1, with a door body 2 symmetrically and rotatably connected to the inner wall of the door frame 1. A limiting strip 8, which fits against the outer side of the door body 2, is fixedly installed on the inner wall of the door frame 1. A front panel 3 is fixedly installed at the center of the outer surface of the door body 2. An inspection and decorative cover 4 is fixedly connected to the inner surface of the door body 2, and a rear panel 5, corresponding to the front panel 3, is fixedly installed at the center of the surface of the inspection and decorative cover 4. A handle 6 is installed on the inner side of the rear panel 5. An automatic unlocking mechanism 9 locks and unlocks the door frame 1 and the door body 2. Reinforcing ribs 10 are evenly distributed inside the door body 2, and multiple limiting plates 11, perpendicular to the reinforcing ribs 10, are fixedly connected inside the door body 2. The automatic unlocking mechanism 9 includes an installation groove 901 opened inside the door body 2. Storage grooves 910, which communicate with the installation groove 901, are opened on both the upper and lower sides of the door body 2. Insert blocks 909 are slidably connected in the storage grooves 910. Positioning grooves 911, corresponding to the insert blocks 909, are opened on both the upper and lower sides of the door frame 1. A mounting bracket 902 is fixedly connected inside the mounting slot 901. A geared motor 903 is fixedly mounted on the mounting bracket 902. A drive gear 904 is fixedly connected to the output shaft of the geared motor 903. A driven gear 905, meshing with the drive gear 904, is rotatably connected at the center of the mounting slot 901. A rack 906, meshing with the driven gear 905, is symmetrically slidably connected inside the mounting slot 901. The two racks 906 move in opposite directions. A slider 907, connected to the rack 906, is symmetrically slidably connected inside the mounting slot 901. A connecting rod 908, connected to the insert block 909, is fixedly mounted on the slider 907. A battery 912, electrically connected to the geared motor 903, the front panel 3, and the rear panel 5, is fixedly installed inside the mounting slot 901. A maintenance cover 4 completely covers the mounting slot 901 and has a charging port electrically connected to the battery 912. A groove is provided on the front panel 3 near the door 2, and a fingerprint sensor is fixedly connected inside the groove. The rear panel 5 is fixedly connected to a control circuit board that is electrically connected to the fingerprint sensor, and a knob 7 is rotatably connected to the side of the rear panel 5 near the handle 6.

[0022] Analysis of the above: An automatic unlocking mechanism 9 is installed. When the fingerprint recognized by the fingerprint sensor matches the set fingerprint, the control circuit board controls the reduction motor 903 to start, rotating a set number of times. When the drive gear 904 rotates, it drives the driven gear 905 to rotate. The rotation of the driven gear 905 drives the two racks 906 to move up and down. The up and down movement of the racks 906 controls the corresponding connecting rod 908 to move the insert block 909, causing the insert block 909 to move out of the positioning groove 911, so that the top of the insert block 909 is flush with the top of the storage groove 910. At this time, the door 2 can be opened. Only the fingerprint sensor is installed on the front panel 3, without a lock body, to prevent lock picking. When closing the door, the door 2 is rotated in the opposite direction, so that one side of the door 2 is close to the limit strip 8. The reduction motor 903 reverses, driving the insert block 909 to move upward, so that the insert block 909 is inserted into the positioning groove 911, locking the door frame 1 and the door 2.

[0023] The door body 2 is internally equipped with reinforcing ribs 10 and limiting plates 11, which improves the overall structural strength of the door body 2, enhances its impact resistance, and further improves its anti-theft capabilities. The diameter of the driven gear 905 is three times that of the driving gear 904, and the reduction motor 903 has a large torque, facilitating the movement of the insertion block 909. All components are general standard parts or parts known to those skilled in the art, and their structures and principles can be obtained by those skilled in the art through technical manuals or conventional experimental methods.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-leaf thickened steel security door, characterized in that, include: A door frame (1) is symmetrically and rotatably connected to a door body (2) on the inner wall of the door frame (1). A limiting strip (8) that fits against the outer side of the door body (2) is fixedly installed on the inner wall of the door frame (1). A front panel (3) is fixedly installed at the center of the outer side of the door body (2). An inspection and decoration cover (4) is fixedly connected to the inner side of the door body (2). A rear panel (5) corresponding to the front panel (3) is fixedly installed at the center of the surface of the inspection and decoration cover (4). A handle (6) is installed on the inner side of the rear panel (5). Automatic unlocking mechanism (9) locks and unlocks the door frame (1) and the door body (2); The reinforcing ribs (10) are evenly distributed inside the door body (2), and multiple limiting plates (11) that are perpendicular to the reinforcing ribs (10) are fixedly connected inside the door body (2).

2. The double-leaf thickened steel security door according to claim 1, characterized in that: The automatic unlocking mechanism (9) includes an installation groove (901) inside the door body (2). The door body (2) has storage grooves (910) connected to the installation groove (901) on both the upper and lower sides. A plug (909) is slidably connected in the storage groove (910). The door frame (1) has positioning grooves (911) corresponding to the plug (909) on both the upper and lower sides.

3. A double-leaf thickened steel security door according to claim 2, characterized in that: A mounting bracket (902) is fixedly connected inside the mounting slot (901). A geared motor (903) is fixedly mounted on the mounting bracket (902). A drive gear (904) is fixedly connected to the output shaft end of the geared motor (903). A driven gear (905) that meshes with the drive gear (904) is rotatably connected in the center of the mounting slot (901). A rack (906) that meshes with the driven gear (905) is symmetrically slidably connected inside the mounting slot (901). The two racks (906) move in opposite directions. A slider (907) that is connected to the rack (906) is symmetrically slidably connected inside the mounting slot (901). A connecting rod (908) that is connected to the insert block (909) is fixedly mounted on the slider (907).

4. A double-leaf thickened steel security door according to claim 2, characterized in that: The mounting slot (901) is fixedly installed with batteries (912) that are electrically connected to the geared motor (903), the front panel (3) and the rear panel (5).

5. A double-leaf thickened steel security door according to claim 4, characterized in that: The maintenance decorative cover (4) completely covers the mounting groove (901), and the maintenance decorative cover (4) has a charging port that is electrically connected to the battery (912).

6. A double-leaf thickened steel security door according to claim 1, characterized in that: The front panel (3) has a groove on the side near the door (2), and a fingerprint sensor is fixedly connected in the groove.

7. A double-leaf thickened steel security door according to claim 6, characterized in that: The rear panel (5) is fixedly connected to a control circuit board that is electrically connected to the fingerprint sensor, and a knob (7) is rotatably connected to the side of the rear panel (5) near the handle (6).

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