Prying-resistant steel security door

Abstract

The utility model relates to the technical field of steel anti-theft doors, in particular to a prying-resistant steel anti-theft door which comprises a frame body, three grooves distributed at equal intervals are formed in the left side of the interior of the frame body, and a positioning nail groove is formed in the middle end of one side of the interior of each groove. Three hinges distributed at equal intervals are fixedly installed on the front face of the frame body through arranged connecting bolts, anti-theft nails corresponding to the positioning nail grooves are fixedly installed on one sides of the hinges, and an anti-theft door body is fixedly installed on one sides of the hinges through the connecting bolts. Through the effects of the frame body, the positioning nail grooves and the anti-theft nails, the steel anti-theft door has the advantage of being good in anti-prying effect, and the problems that according to an existing steel anti-theft door, hinges are usually used after being matched with a door frame, and when some illegal persons steal in a house, the anti-theft door is opened by occasionally adopting the mode that the hinges are damaged by prying or cut off, and the anti-theft effect is poor are solved. And the anti-theft effect of the anti-theft door is lost.

Description

Technical Field

[0001] This utility model relates to the field of steel security door technology, specifically a steel security door with anti-pry features. Background Technology

[0002] Steel security doors are security doors made primarily of steel, mainly used at building entrances to provide functions such as burglarproofing, fireproofing, sound insulation, and heat preservation. They are common security facilities in modern buildings and are widely used in residences, shops, warehouses, and other places.

[0003] Currently, existing steel security doors typically use hinges in conjunction with the door frame. However, when criminals break into homes, they sometimes pry open or cut the hinges to open the security door, rendering it ineffective. Therefore, we propose a steel security door with anti-pry features. Utility Model Content

[0004] The purpose of this utility model is to provide a steel security door with anti-pry properties, which has the advantage of good anti-pry effect. It solves the problem that existing steel security doors usually use hinges and door frames together, and some criminals sometimes pry open the security door by breaking or cutting the hinges when breaking into the house, thus rendering the security door ineffective.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel anti-theft door with anti-pry features, comprising a frame, three equally spaced grooves on the left side of the frame, a positioning nail groove on the middle of one side of each groove, three equally spaced hinges fixedly mounted on the front of the frame by connecting bolts, an anti-theft nail corresponding to the positioning nail groove fixedly mounted on one side of each hinge, and the anti-theft door body fixedly mounted on one side of each hinge by the connecting bolts.

[0006] Preferably, the internal dimensions of the positioning nail groove are 1.3 to 1.5 times the external dimensions of the anti-theft nail.

[0007] Preferably, a hollow sealing strip is provided on the outer end face of one side of the main body of the security door, and an arc-shaped sealing groove is provided on one side of the sealing strip.

[0008] Preferably, the sealing strip is made of silicone rubber.

[0009] Preferably, polyester fiber sound-absorbing panels and polyethylene foam sound-insulating pads are respectively provided on the front and rear sides of the inner cavity of the anti-theft door body.

[0010] Preferably, the thickness of the polyester fiber sound-absorbing panel is 0.2 to 0.45 times the thickness of the main body of the security door.

[0011] Preferably, the thickness of the polyethylene foam sound insulation pad is 0.25 to 0.5 times the thickness of the main body of the security door.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the frame design, allows the security door to be installed in the usage position. Then, with the cooperation of the hinge, after the security door body is closed on the inside of the frame, the hinge can drive the anti-theft nail into the corresponding positioning nail slot. If criminals open the security door body by damaging the hinge, even if the hinge is completely cut off, the anti-theft nail in the positioning nail slot can still provide positioning support for the security door body, thus preventing the security door body from being pried open.

[0014] 2. By using a sealing strip and with the assistance of an arc-shaped sealing groove, this utility model can achieve an effective sealing effect when the main body of the security door is closed inside the frame, further improving the sound insulation and heat preservation effect of the security door. Attached Figure Description

[0015] Figure 1 This is a first-view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the third-view cross-sectional structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the sealing strip structure of this utility model.

[0019] In the diagram: 1. Frame; 2. Hinge; 3. Main body of the security door; 4. Sealing strip; 5. Groove; 6. Connecting bolt; 7. Anti-theft nail; 8. Positioning nail groove; 9. Polyester fiber sound-absorbing board; 10. Polyethylene foam sound insulation pad; 11. Arc-shaped sealing groove. 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.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The frame 1, hinge 2, anti-theft door body 3, sealing strip 4, groove 5, connecting bolt 6, anti-theft nail 7, positioning nail groove 8, polyester fiber sound-absorbing board 9, polyethylene foam sound insulation pad 10, and arc-shaped sealing groove 11 components in this application are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. Example

[0024] Please see Figures 1-4 As shown, this utility model provides a technical solution: a steel anti-theft door with anti-pry features, including a frame 1. Three equally spaced grooves 5 are provided on the left side of the inside of the frame 1. A positioning nail groove 8 is provided at the middle of one side of the groove 5. Three equally spaced hinges 2 are fixedly installed on the front of the frame 1 by connecting bolts 6. Anti-theft nails 7 corresponding to the positioning nail grooves 8 are fixedly installed on one side of the hinges 2. The internal size of the positioning nail groove 8 is 1.3 to 1.5 times the external size of the anti-theft nail 7. The anti-theft door body 3 is fixedly installed on one side of the hinges 2 by connecting bolts 6.

[0025] This technical solution: By setting the frame 1, the security door can be installed in the usage position. Then, with the cooperation of the hinge 2, after the security door body 3 is closed on the inside of the frame 1, the hinge 2 can drive the anti-theft nail 7 into the corresponding positioning nail groove 8. If criminals open the security door body 3 by damaging the hinge 2, even if the hinge 2 is completely cut off, the anti-theft nail 7 can still provide positioning support for the security door body 3 in the positioning nail groove 8, thus preventing the security door body 3 from being pried open. Example

[0026] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a hollow sealing strip 4 is provided on the outer end face of one side of the main body 3 of the security door. An arc-shaped sealing groove 11 is provided on one side of the sealing strip 4. The material of the sealing strip 4 is silicone rubber.

[0027] This technical solution: By setting the sealing strip 4 and with the assistance of the arc-shaped sealing groove 11, it can achieve an effective sealing effect when the main body 3 of the security door is closed inside the frame 1, further improving the sound insulation and heat preservation effect of the security door. Example

[0028] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, polyester fiber sound-absorbing panels 9 and polyethylene foam sound-insulating pads 10 are respectively installed on the front and rear sides of the inner cavity of the anti-theft door body 3. The thickness of the polyester fiber sound-absorbing panels 9 is 0.2 to 0.45 times the thickness of the anti-theft door body 3, and the thickness of the polyethylene foam sound-insulating pads 10 is 0.25 to 0.5 times the thickness of the anti-theft door body 3.

[0029] This technical solution improves the sound absorption and insulation capabilities of the main body 3 of the security door by using polyester fiber sound-absorbing panels 9 and polyethylene foam sound insulation pads 10, and further enhances the heat insulation effect of the security door, which is conducive to market promotion.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A steel security door with anti-pry features, comprising a frame (1), characterized in that: The frame (1) has three equally spaced grooves (5) on the left side inside. The grooves (5) have a positioning nail groove (8) at the middle of one side. The frame (1) has three equally spaced hinges (2) fixedly installed on the front side by connecting bolts (6). The hinges (2) have anti-theft nails (7) corresponding to the positioning nail grooves (8) fixedly installed on one side. The anti-theft door body (3) is fixedly installed on one side of the hinges (2) by connecting bolts (6).

2. A steel security door with anti-pry features according to claim 1, characterized in that: The internal dimensions of the positioning nail groove (8) are 1.3 to 1.5 times the external dimensions of the anti-theft nail (7).

3. A steel security door with anti-pry features according to claim 1, characterized in that: A hollow sealing strip (4) is provided on the outer end face of one side of the anti-theft door body (3), and an arc-shaped sealing groove (11) is provided on one side of the sealing strip (4).

4. A steel security door with anti-pry features according to claim 3, characterized in that: The sealing strip (4) is made of silicone rubber.

5. A steel security door with anti-pry features according to claim 1, characterized in that: The front and rear sides of the inner cavity of the anti-theft door body (3) are respectively provided with polyester fiber sound-absorbing board (9) and polyethylene foam sound insulation pad (10).

6. A steel security door with anti-pry features according to claim 5, characterized in that: The thickness of the polyester fiber sound-absorbing panel (9) is 0.2 to 0.45 times the thickness of the anti-theft door body (3).

7. A steel security door with anti-pry features according to claim 6, characterized in that: The thickness of the polyethylene foam sound insulation pad (10) is 0.25 to 0.5 times the thickness of the anti-theft door body (3).

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