Composite metal security door

Abstract

The utility model discloses a combined type metal anti-theft door which comprises a door frame, a limiting inner frame is arranged on the inner circumferential side of the door frame, a door plate corresponding to the limiting inner frame in a matched mode is hinged to one side of the door frame, and a plurality of second magnetic blocks are fixed to the inner side face of the opening and closing end of the door plate in the height direction of the door plate. A plurality of buffering blocks corresponding to the second magnetic blocks are installed on one side of the limiting inner frame in an embedded mode in the height direction of the limiting inner frame, and anti-collision ejector rods protruding out of the front ends of the buffering blocks are arranged on the inner sides of the buffering blocks in a sliding and telescopic mode. When the door plate is closed, the multiple second magnetic blocks on one side of the anti-collision ejector rod can repel and reversely push the first magnetic blocks, so that the resistance generated when the door plate and the door frame are closed is effectively increased, hard contact is prevented, meanwhile, the anti-collision ejector rod can form main resistance on the door plate to be closed under the action of the spiral spring, effective buffering can be formed on collision from the door plate, and the safety of the door plate is improved. And the impact force and the impact noise when the security door is closed are greatly reduced under the mutual cooperation.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-theft doors, in particular to a composite metal anti-theft door. Background Art

[0002] Composite security doors are a combination of a solid door and a fence-type security door. They offer the advantages of anti-theft, fly and mosquito protection in the summer, ventilation and cooling, and warmth and sound insulation in the winter. Combining the anti-theft performance of a solid door with the ventilation characteristics of a fence-type security door, composite security doors ensure both home security and a well-ventilated environment. However, in practice, composite metal security doors are generally heavy, and their panels lack push-pull resistance during opening and closing. Often, people slamming the door with a slight force can create a significant impact and noise between the panel and the doorframe, disrupting daily life. Long-term use can also accelerate the wear and aging of the sealing strips. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] Therefore, the purpose of the present invention is to provide a composite metal security door to solve the problem that the existing composite metal security door proposed in the above background technology lacks push-pull resistance during the opening and closing rotation process. In many cases, when people close the door with a little force, a large impact force and impact noise will be generated between the door panel and the door frame, thereby affecting people's lives. In the long run, this will also accelerate the damage and aging of the sealing strip.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a composite metal anti-theft door, which includes a door frame, an inner limiting frame on the inner circumference of the door frame, a door panel corresponding to the inner limiting frame hinged on one side of the door frame, a plurality of magnetic blocks 2 are fixed on the inner side surface of the opening and closing end of the door panel along its height direction, a plurality of buffer blocks corresponding to the two magnetic blocks are embedded and installed on one side of the limiting inner frame along its height direction, an anti-collision top rod is slidably and retracted on the inside of the buffer block and protrudes from the front end thereof, the outer end of the anti-collision top rod corresponds to the two magnetic blocks, a coil spring is provided on the inside of the buffer block and abuts against the inner end of the anti-collision top rod, and the outer end of the anti-collision top rod also has a magnetic block 1 that magnetically repels the two magnetic blocks.

[0006] As a preferred solution of the composite metal anti-theft door described in the utility model, a retaining ring is fixed on the outer peripheral side of the inner end of the anti-collision top rod and connected to the coil spring, and the anti-collision top rod has a limiting cavity coaxial with it inside, and a positioning slide rod that passes through the inner end of the anti-collision top rod and is located inside the coil spring slides inside the limiting cavity, and one end of the positioning slide rod is fixed to the inner side of the buffer block.

[0007] As a preferred solution of the composite metal anti-theft door described in the utility model, the front end of the buffer block also has a guide hole corresponding to the anti-collision top rod, and the inner side of the guide hole has a rubber ring that is interference fit with the anti-collision top rod.

[0008] As a preferred solution of the composite metal anti-theft door described in the utility model, the upper and lower ends of the buffer block respectively have mounting ears, the front end of the mounting ear has a countersunk hole, and the inside of the countersunk hole has a threaded hole passing through the rear end of the mounting ear.

[0009] As a preferred solution of the composite metal anti-theft door described in the utility model, sealing strips are installed around the inner side of the door panel, and the sealing strips are staggered with the anti-collision top rod.

[0010] As a preferred solution of the composite metal anti-theft door described in the utility model, the door panel has a ventilation window in the middle upper part, the inner side of the ventilation window has a mosquito net, and the outer side of the ventilation window is fixed with a protective steel bar.

[0011] Compared with the prior art, the beneficial effect of the present invention is that when people close the door of this composite metal anti-theft door with force, the door panel will quickly approach the limiting inner frame. When it is about to contact, the multiple magnetic blocks 2 on one side of the anti-collision top rod will repel and push back with the magnetic block 1, thereby effectively increasing the resistance when the door panel and the door frame are closed and preventing hard contact. At the same time, the anti-collision top rod can form the main resistance to the door panel that is about to close under the action of the coil spring, and can effectively buffer the impact from the door panel. The mutual cooperation greatly reduces the impact force and impact noise when the anti-theft door is closed, reduces the impact on people's lives, and also increases the service life of the sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the buffer block of the utility model;

[0014] Figure 3 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0015] Figure 4 This is a schematic diagram of the front structure of the door panel of the present invention.

[0016] In the figure: 100, door frame; 110, limiting inner frame; 200, door panel; 210, ventilation window; 220, mosquito net; 230, protective steel bar; 300, buffer block; 301, guide hole; 310, anti-collision top rod; 311, retaining ring; 320, coil spring; 330, magnetic block 1; 340, positioning slide bar; 350, rubber ring; 360, mounting ear; 361, countersunk hole; 362, threaded hole; 400, magnetic block 2; 500, sealing strip. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0020] Figures 1-4 Shown is a schematic diagram of the entire structure of a composite metal anti-theft door of the utility model, please refer to Figures 1-4 , a composite metal anti-theft door of the present embodiment includes a door frame 100, an inner peripheral side of the door frame 100 is provided with a limiting inner frame 110, and a door panel 200 corresponding to the limiting inner frame 110 is hinged on one side of the door frame 100, and a plurality of magnetic blocks 400 are fixed on the inner side surface of the opening and closing end of the door panel 200 along its height direction, and a plurality of buffer blocks 300 corresponding to the magnetic blocks 400 are embedded and installed on one side of the limiting inner frame 110 along its height direction, and an anti-collision top rod 310 is slidably and retracted on the inside of the buffer block 300 and protrudes from the front end thereof, and the outer end of the anti-collision top rod 310 corresponds to the magnetic block 400, and a coil spring 320 is provided on the inside of the buffer block 300 and abuts against the inner end of the anti-collision top rod 310, and the outer end of the anti-collision top rod 310 also has a magnetic block 330 that magnetically repels the magnetic block 400.

[0021] A retaining ring 311 is fixed on the outer peripheral side of the inner end of the anti-collision top rod 310 and connected to the coil spring 320. The anti-collision top rod 310 has a limiting cavity coaxial with it. A positioning slide rod 340 slides inside the limiting cavity and is passed through the inner end of the anti-collision top rod 310 and located on the inner side of the coil spring 320. One end of the positioning slide rod 340 is fixed on the inner side of the buffer block 300. When people close the door forcefully, the door panel 200 will quickly approach the limiting inner frame 110. When they are about to make contact, the multiple magnetic blocks 2 400 on one side of the anti-collision top rod 310 will repel and push back with the magnetic block 1 330, thereby effectively increasing the resistance when the door panel 200 and the door frame 100 are closed and preventing hard contact. At the same time, the anti-collision top rod 310 can form the main resistance to the door panel 200 that is about to close under the action of the coil spring 320, and can effectively buffer the impact from the door panel 200. The mutual cooperation greatly reduces the impact force and impact noise when the anti-theft door is closed, reduces the impact on people's lives, and also increases the service life of the sealing strip 500. The front end of the buffer block 300 also has a guide hole 301 corresponding to the anti-collision top rod 310, and the inside of the guide hole 301 has a rubber ring 350 that is interference fit with the anti-collision top rod 310. By arranging the rubber ring 350 inside the guide hole 301, it can further reduce the friction sound when the anti-collision top rod 310 is extended and slid, and at the same time prevent dust and rainwater from entering the interior of the buffer block 300.

[0022] Furthermore, the buffer block 300 has mounting ears 360 at the upper and lower ends respectively, the mounting ear 360 has a countersunk hole 361 at the front end, and the inside of the countersunk hole 361 has a threaded hole 362 that passes through the rear end of the mounting ear 360. It can be understood that one side of the limiting inner frame 110 has a mounting groove corresponding to the buffer block 300. During installation, the buffer block 300 can be directly placed in the mounting groove, and the bolt can be screwed into the threaded hole 362 on the inside of the mounting ear 360 to form a threaded connection with the limiting inner frame 110. In addition, the countersunk hole 361 can embed and hide the nut of the bolt to prevent the nut from touching the closed door panel 200, while also having an aesthetic effect.

[0023] Furthermore, a sealing strip 500 is installed around the inner side of the door panel 200, and the sealing strip 500 is staggered with the anti-collision top bar 310. The staggered setting can prevent the sealing strip 500 from colliding with the anti-collision top bar 310 for a long time and causing damage to the sealing strip 500.

[0024] Furthermore, the door panel 200 has a ventilation window 210 at the center upper portion. A mosquito net 220 is provided on the inner side of the ventilation window 210, and protective steel bars 230 are fixed to the outer side of the ventilation window 210. The protective steel bars 230 provide a barrier and protection for the ventilation window 210. The thickness and density of the protective steel bars 230 can be adjusted according to actual needs. The mosquito net 220 and the ventilation window 210 are detachable.

[0025] In summary, in the composite metal anti-theft door of the present embodiment, when people close the door with force, the door panel 200 will quickly approach the limiting inner frame 110. When they are about to make contact, the multiple magnetic blocks 2 400 on one side of the anti-collision top rod 310 will repel and push back with the magnetic block 1 330, thereby effectively increasing the resistance when the door panel 200 and the door frame 100 are closed and preventing hard contact. At the same time, the anti-collision top rod 310 can form the main resistance to the door panel 200 that is about to close under the action of the coil spring 320, and can effectively buffer the impact from the door panel 200. The mutual cooperation greatly reduces the impact force and impact noise when the anti-theft door is closed, reduces the impact on people's lives, and also increases the service life of the sealing strip 500.

[0026] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A composite metal anti-theft door, characterized in that: The invention comprises a door frame (100), wherein the inner peripheral side of the door frame (100) is provided with a limiting inner frame (110), and a door panel (200) corresponding to the limiting inner frame (110) is hingedly connected to one side of the door frame (100), and a plurality of magnetic blocks (400) are fixed to the inner side surface of the opening and closing end of the door panel (200) along its height direction, and a plurality of buffer blocks (400) corresponding to the magnetic blocks (400) are embedded and installed on one side of the limiting inner frame (110) along its height direction. The buffer block (300) is provided with an anti-collision top rod (310) which is slidable and retractable inside the buffer block (300) and protrudes from the front end thereof, the outer end of the anti-collision top rod (310) corresponds to the second magnetic block (400), the buffer block (300) is provided with a coil spring (320) which is in contact with the inner end of the anti-collision top rod (310), and the outer end of the anti-collision top rod (310) also has a first magnetic block (330) which is magnetically repelled from the second magnetic block (400).

2. A composite metal anti-theft door according to claim 1, characterized in that: A retaining ring (311) is fixed on the outer peripheral side of the inner end of the anti-collision top rod (310) and is connected to the coil spring (320). The anti-collision top rod (310) has a coaxial limiting cavity inside the anti-collision top rod (310). A positioning slide rod (340) is slidably provided inside the limiting cavity and is arranged on the inner end of the anti-collision top rod (310) and located on the inner side of the coil spring (320). One end of the positioning slide rod (340) is fixed on the inner side of the buffer block (300).

3. The composite metal anti-theft door according to claim 1, characterized in that: The front end of the buffer block (300) further comprises a guide hole (301) corresponding to the anti-collision top rod (310), and the inner side of the guide hole (301) comprises a rubber ring (350) which is interference-fitted with the anti-collision top rod (310).

4. The composite metal anti-theft door according to claim 1, characterized in that: The buffer block (300) has mounting ears (360) at the upper and lower ends respectively. The front end of the mounting ear (360) has a countersunk hole (361). The inside of the countersunk hole (361) has a threaded hole (362) that passes through the rear end of the mounting ear (360).

5. The composite metal anti-theft door according to claim 1, characterized in that: Sealing strips (500) are installed around the inner sides of the door panel (200), and the sealing strips (500) and the anti-collision top rod (310) are staggered.

6. The composite metal anti-theft door according to claim 1, characterized in that: The door panel (200) has a ventilation window (210) at the center upper portion, the inner side of the ventilation window (210) has a mosquito net (220), and the outer side of the ventilation window (210) is fixed with a protective steel bar (230).

Images