Anti-prying device of fireproof and anti-theft door

Abstract

The utility model provides an anti-prying device of a fireproof and anti-theft door. The anti-prying device comprises a door frame, the fireproof and anti-theft door plate and the hinge are arranged on the inner side of the door frame; the multiple hinges are connected to the hinge connecting position of the fireproof and anti-theft door plate and the door frame, after the fireproof and anti-theft door plate is closed and locked to the door frame, internal personnel can pull out the limiting strip so that the limiting strip can drive the anti-prying rope to stretch out of the winding chamber, the winding disc can rotate along with the limiting strip, and after the anti-prying rope is horizontally attached to the back face of the fireproof and anti-theft door plate, the anti-prying rope can rotate. After the limiting block on the limiting strip is clamped in the clamping groove in the anti-prying seat in the middle section of the hinge and the limiting assembly is screwed, the anti-prying rope secondarily limits the fireproof and anti-theft door plate, and even if a door lock of the fireproof and anti-theft door plate is pried, external personnel cannot push the fireproof and anti-theft door plate open under the limiting effect of the anti-prying rope.

Description

Technical Field

[0001] This utility model relates to the field of security door technology, and in particular to an anti-pry device for fireproof and burglarproof doors. Background Technology

[0002] Fireproof and burglarproof doors are doors specifically designed to improve the security of buildings, combining both fireproof and burglarproof functions.

[0003] Fireproof and burglarproof doors typically consist of a door frame, door leaf, hardware (such as hinges and locks), weatherstripping, and other components to enhance security. The internal structure of the door leaf may be filled with fire-resistant materials to increase its fire resistance; at the same time, high-strength materials are used to improve its resistance to damage.

[0004] Existing fireproof and burglarproof doors, once closed, can be easily pried open by forcibly breaking the lock from the outside. Utility Model Content

[0005] The purpose of this invention is to provide an anti-pry device for fireproof and burglarproof doors in order to solve the above-mentioned problems.

[0006] The technical solution of this utility model is implemented as follows:

[0007] This utility model provides an anti-pry device for a fireproof and burglarproof door, the structure of which includes a door frame;

[0008] Fireproof and burglarproof door panel, with hinges located inside the door frame;

[0009] Several hinges are provided and connected to the hinge joint between the fireproof and burglarproof door panel and the door frame;

[0010] The hinge has an anti-pry seat in the middle section connected to the back of the fireproof and burglarproof door panel; the rear end face of the door frame away from the hinge has a storage-type restraint mechanism corresponding to the anti-pry seat.

[0011] In the above technical solution, after the fireproof and burglarproof door panel is closed and locked to the door frame, the inside personnel can pull out the limiting strip, which causes the limiting strip to drive the anti-pry rope out of the winding chamber. The winding reel rotates accordingly. After the anti-pry rope is horizontally attached to the back of the fireproof and burglarproof door panel, the limiting block on the limiting strip is engaged with the slot on the anti-pry seat in the middle of the hinge. After the limiting component is tightened, the anti-pry rope provides a secondary restriction on the fireproof and burglarproof door panel. Even if the lock of the fireproof and burglarproof door panel is pried open, the outside personnel cannot push the fireproof and burglarproof door panel open due to the restriction effect of the anti-pry rope.

[0012] In one embodiment, the retractable restraint mechanism includes a housing with a storage groove on the end face of the housing facing the anti-pry seat. A restraining block is movably disposed within the storage groove, and a restraining strip is provided on the side of the restraining block facing the opening of the storage groove. A winding chamber is provided inside the housing, and a winding reel is rotatably disposed inside the winding chamber. An anti-pry rope is wound on the winding reel, and the end of the anti-pry rope extends into the storage groove and connects with the restraining block. A restraining component for restricting the movement of the anti-pry rope is provided on the outer wall of the housing. This technical solution can effectively improve security performance and prevent the door lock from being pried open.

[0013] In one embodiment, the limiting component is specifically a limiting bolt. When the limiting bolt is tightened, its end acts tightly against the anti-pry rope. In this technical solution, the limiting bolt can effectively prevent the movement of the anti-pry rope and limit its movement. When the limiting bolt is tightened, its end acts tightly against the anti-pry rope.

[0014] In one embodiment, the outer wall of the limiting block is provided with a buckle groove for easy user operation.

[0015] In one embodiment, the buckle slot is provided in a plurality of places. In this technical solution, the buckle slot is provided to facilitate the positioning of the user's finger.

[0016] In one embodiment, the end of the anti-pry seat is provided with a slot that slides and engages with the limiting strip. In this technical solution, the limiting strip is engaged through the slot.

[0017] In one embodiment, both the limiting strip and the slot have a T-shaped cross-section. This technical solution improves the stability of the engagement through the T-shaped structure.

[0018] In one embodiment, the top of the door frame is provided with a pneumatic lever for driving the fireproof and burglarproof door panel to open and close. In this technical solution, the convenience of opening the door is improved by using a pneumatic lever.

[0019] The advantages or beneficial effects of the above technical solutions include at least the following:

[0020] This utility model discloses an anti-pry device for a fireproof and burglarproof door. After the fireproof and burglarproof door panel is closed and locked in the door frame, people inside can pull out a limiting strip, causing the limiting strip to drive the anti-pry rope out of the winding chamber. The winding reel rotates accordingly. After the anti-pry rope is horizontally attached to the back of the fireproof and burglarproof door panel, the limiting block on the limiting strip is engaged with the slot on the anti-pry seat in the middle section of the hinge. After the limiting component is tightened, the anti-pry rope provides a secondary restriction on the fireproof and burglarproof door panel. Even if the door lock of the fireproof and burglarproof door panel is pried open, under the restriction of the anti-pry rope, people outside cannot push the fireproof and burglarproof door panel open. Attached Figure Description

[0021] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0022] Figure 1 This is a structural schematic diagram of a fireproof and burglarproof door according to the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the retractable restraint mechanism;

[0024] Figure 3 A schematic diagram of the cross-sectional structure connecting the retractable restraint mechanism and the anti-pry base;

[0025] Figure 4 This is a top view of the connection between the limiting strip and the card slot. Detailed Implementation

[0026] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0027] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0029] It should be noted that the terms "a" and "several" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0030] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0031] Reference Figures 1-4 An anti-pry device for a fireproof and burglarproof door, the structure of which includes a door frame 1;

[0032] Fireproof and burglarproof door panel 2, with hinges located inside the door frame 1;

[0033] Several hinges 3 are provided and are connected to the hinge connection between the fireproof and burglarproof door panel 2 and the door frame 1.

[0034] The hinge 3 is provided with an anti-pry seat 31 connected to the back of the fireproof and burglarproof door panel 2 in the middle section; the rear end face of the door frame 1 is provided with a storage-type restriction mechanism 11 corresponding to the anti-pry seat 31 at the edge away from the hinge 3.

[0035] In the above technical solution, after the fireproof and burglarproof door panel is closed and locked to the door frame, the inside personnel can pull out the limiting strip, which causes the limiting strip to drive the anti-pry rope out of the winding chamber. The winding reel rotates accordingly. After the anti-pry rope is horizontally attached to the back of the fireproof and burglarproof door panel, the limiting block on the limiting strip is engaged with the slot on the anti-pry seat in the middle of the hinge. After the limiting component is tightened, the anti-pry rope provides a secondary restriction on the fireproof and burglarproof door panel. Even if the lock of the fireproof and burglarproof door panel is pried open, the outside personnel cannot push the fireproof and burglarproof door panel open due to the restriction effect of the anti-pry rope.

[0036] In one embodiment, the retractable restraint mechanism 11 includes a housing 111, a storage groove 112 on the end face of the housing 111 facing the anti-pry seat 31, a restraint block 113 movably disposed in the storage groove 112, a restraint strip 114 on the side of the restraint block 113 facing the opening of the storage groove 112, a winding chamber 115 inside the housing 111, a winding reel 116 rotatably disposed in the winding chamber 115, an anti-pry rope 117 wound on the winding reel 116, the end of the anti-pry rope 117 extending into the storage groove 112 and connecting with the restraint block 113, and a restraint component 118 for restricting the movement of the anti-pry rope 117 on the outer wall of the housing 111. This technical solution can effectively improve security performance and prevent the door lock from being pried open.

[0037] In one embodiment, the limiting component 118 is specifically a limiting bolt. When the limiting bolt is tightened, its end acts tightly on the anti-pry rope 117. In this technical solution, the limiting bolt can effectively prevent the movement of the anti-pry rope 117 and limit its movement. When the limiting bolt is tightened, its end acts tightly on the anti-pry rope 117.

[0038] In one embodiment, the outer wall of the limiting block 113 is provided with a buckle groove 119 for easy operation by the user.

[0039] In one embodiment, the buckle groove 119 is provided in a plurality of places. In this technical solution, the buckle groove 119 is provided to facilitate the positioning of the user's finger.

[0040] In one embodiment, the end of the anti-pry seat 31 is provided with a slot 311 that slides and engages with the limiting strip 114. In this technical solution, the limiting strip 114 is engaged and restricted through the slot 311.

[0041] In one embodiment, both the limiting strip 114 and the slot 311 have a T-shaped cross-section. In this technical solution, the T-shaped structure improves the stability of the engagement.

[0042] In one embodiment, the top of the door frame 1 is provided with a pneumatic lever for driving the fireproof and burglarproof door panel 2 to open and close. In this technical solution, the convenience of opening the door is improved by using a pneumatic lever.

[0043] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0044] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. An anti-pry device for a fireproof and burglarproof door, characterized in that: Its structure includes a door frame (1); Fireproof and burglarproof door panel (2), with hinges located inside the door frame (1); Several hinges (3) are provided and are connected to the hinge connection between the fireproof and burglarproof door panel (2) and the door frame (1); The hinge (3) is provided with an anti-pry seat (31) connected to the back of the fireproof and burglarproof door panel (2) in the middle section; the rear end face of the door frame (1) away from the hinge (3) is provided with a storage-type restriction mechanism (11) corresponding to the anti-pry seat (31).

2. The anti-pry device for a fireproof and burglarproof door according to claim 1, characterized in that: The retractable restraint mechanism (11) includes a housing (111), a storage groove (112) on the end face of the housing (111) facing the anti-pry seat (31), a restraint block (113) is movably disposed in the storage groove (112), a restraint strip (114) is provided on the side of the restraint block (113) facing the opening of the storage groove (112), a winding chamber (115) is provided in the housing (111), a winding reel (116) is rotatably disposed in the winding chamber (115), an anti-pry rope (117) is wound on the winding reel (116), the end of the anti-pry rope (117) extends into the storage groove (112) and connects with the restraint block (113), and a restraint component (118) for restricting the movement of the anti-pry rope (117) is provided on the outer wall of the housing (111).

3. The anti-pry device for a fireproof and burglarproof door according to claim 2, characterized in that: The limiting component (118) is specifically a limiting bolt, which, when tightened, has its end tightly acting on the anti-pry rope (117).

4. The anti-pry device for a fireproof and burglarproof door according to claim 2, characterized in that: The outer wall of the limiting block (113) is provided with a buckle groove (119) for easy operation by the user.

5. The anti-pry device for a fireproof and burglarproof door according to claim 4, characterized in that: The buckle groove (119) has several of them.

6. The anti-pry device for a fireproof and burglarproof door according to claim 2, characterized in that: The anti-pry seat (31) has a slot (311) at its end that slides and engages with the limiting strip (114).

7. The anti-pry device for a fireproof and burglarproof door according to claim 6, characterized in that: Both the limiting strip (114) and the slot (311) have T-shaped cross-sections.

8. The anti-pry device for a fireproof and burglarproof door according to claim 1, characterized in that: The top of the door frame (1) is provided with a pneumatic pull rod that drives the fireproof and burglarproof door panel (2) to open and close.

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