CN220621501U

CN220621501U - Limiting device for hidden hinge of burglarproof door

Info

Publication number: CN220621501U
Application number: CN202322053795.XU
Authority: CN
Inventors: 许春雷
Original assignee: Zhejiang Nanchenxuan Industry And Trade Co ltd
Current assignee: Zhejiang Nanchenxuan Industry And Trade Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-03-19
Anticipated expiration: 2033-07-31

Abstract

The utility model discloses a limiting device of a hidden hinge of a burglarproof door, which is arranged between a door plate and a door frame and comprises two sheets, wherein the two sheets are rotationally connected through a rotating shaft, a supporting block is fixedly connected to the rotating shaft, a groove is formed in the rotating shaft, one sheet is positioned in the groove and is rotationally connected with the groove, the other sheet is fixedly connected with the rotating shaft, and the sheets positioned in the groove are abutted with the inner wall of the groove.

Description

Limiting device for hidden hinge of burglarproof door

Technical Field

The utility model belongs to the field of doors, and relates to an anti-theft door, in particular to a limiting device of an invisible hinge of the anti-theft door.

Background

The anti-theft door has anti-theft and safety performances, and the qualified anti-theft door can not be pried or opened with a 615 square centimeter opening on a door leaf or opened with a 38 square millimeter opening in a semicircle with a 150 square millimeter locking point by using common hand tools such as a chisel, a screwdriver, a crowbar and the like and portable electric tools such as an electric hand drill and the like within 15 minutes. The lockset used on the burglary-resisting door is a special lock for the burglary-resisting door with the function of preventing drilling, which is detected to be qualified by a detection center of a public security department. The anti-theft door can be made of different materials, but can be called as an anti-theft door only if the anti-theft door meets the standard and is qualified in detection and the standard product of the security protection product is taken.

The existing burglary-resisting door generally can be provided with the blind hinge between the door plate and the door frame for improving the burglary-resisting effect, so that the hinge can be completely hidden when the burglary-resisting door is closed, and the burglary-resisting door is prevented from being damaged by external personnel through the hinge.

Disclosure of Invention

The utility model provides a limiting device for an invisible hinge of an anti-theft door, which can play a supporting role on the invisible hinge.

The technical scheme adopted for solving the technical problems is as follows: the limiting device of the hidden hinge of the burglarproof door is arranged between a door plate and the door frame and is characterized by comprising two leaves, wherein the two leaves form a group of hinges, the two leaves are respectively connected to opposite faces of the door frame and the door plate in a rotating mode, the two leaves are connected in a rotating mode through a rotating shaft, the rotating shaft is fixedly connected with a supporting block below the hinges, the supporting block is abutted to one of the supporting blocks, a groove is formed in the rotating shaft, one of the supporting blocks is located in the groove and is connected with the groove in a rotating mode, the other one of the supporting blocks is fixedly connected with the rotating shaft, and the leaf located in the groove is abutted to the inner wall of the groove.

The further preferable technical scheme of the utility model is as follows: the door frame is provided with a caulking groove, and when the door plate rotates into the door frame, the rotating shaft and the supporting block rotate into the caulking groove along with the rotation of the door plate.

The further preferable technical scheme of the utility model is as follows: the bottom end of the rotating shaft is in butt joint with the inner bottom surface of the door frame.

The further preferable technical scheme of the utility model is as follows: the door frame is characterized in that a sliding rail is arranged on the inner bottom surface of the door frame, the bottom end of the rotating shaft extends into the sliding rail, and when the door plate rotates, the bottom end of the rotating shaft slides along the sliding rail.

The further preferable technical scheme of the utility model is as follows: the sliding rail is arc-shaped.

The further preferable technical scheme of the utility model is as follows: the support block is fixedly connected with a support rod between the support block and the rotating shaft, and the support rod is obliquely arranged.

The further preferable technical scheme of the utility model is as follows: a triangle is formed among the support rod, the support block and the rotating shaft.

The further preferable technical scheme of the utility model is as follows: at least two groups of hinges are arranged.

The further preferable technical scheme of the utility model is as follows: the rotating shafts on the two adjacent hinges are connected with each other.

Compared with the prior art, the anti-theft door has the advantages that when the anti-theft door is used, the hinge is prevented from being bent due to the weight of the anti-theft door due to the supporting blocks, the service life of the hinge is prolonged, the hinge can be kept parallel to the ground after long-time use, the anti-theft door can be freely opened and closed, meanwhile, the hinge can be further supported due to the arrangement of the rotating shaft and the grooves, the position of the hinge is prevented from being limited, sinking of the hinge is avoided, and the use smoothness of the anti-theft door is improved.

Drawings

The utility model will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the utility model. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.

FIG. 1 is a first overall structure diagram of the present utility model;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is a second overall block diagram of the present utility model;

FIG. 4 is an enlarged view of the utility model at B in FIG. 2;

FIG. 5 is a cross-sectional view of the present utility model;

FIG. 6 is an enlarged view of the utility model at C in FIG. 5;

FIG. 7 is a cross-sectional view of the hinge and hinge shaft of the present utility model;

fig. 8 is an enlarged view of the utility model at D in fig. 7.

In the figure: 1. a door frame; 2. a door panel; 3. a sheet; 4. a rotating shaft; 5. a slide rail; 6. a caulking groove; 7. a support block; 8. a groove; 9. and (5) supporting the rod.

Detailed Description

Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the utility model.

It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, it may not be further defined and explained in the following figures.

The limiting device of the hidden hinge of the burglary-resisting door is shown in fig. 1 and 2, the limiting device is arranged between the door plate 2 and the door frame 1 and comprises two sheets 3, the two sheets 3 form a group of hinges, at least two pairs of hinges are arranged, so that the door plate 2 and the door frame 1 are connected firmly and stably, the subsequent burglary-resisting door is convenient to use, the two sheets 3 are respectively connected to opposite faces of the door frame 1 and the door plate 2 in a rotating mode, the two sheets 3 are connected in a rotating mode through rotating shafts 4, the rotating shafts 4 on the adjacent two hinges are connected with each other, the adjacent two rotating shafts 4 are integrally formed, the design enables the supporting effect of the rotating shafts 4 to be better, the bottom ends of the rotating shafts 4 are in butt joint with the inner bottom face of the door frame 1, the rotating shafts 4 can be prevented from sinking due to the weight of the door plate 2, the effect of limiting the positions of the rotating shafts 4 is achieved, the rotating shafts 4 are supported, the supporting effect of the rotating shafts 4 is further improved, and when the door plate 2 rotates, the two sheets 3 rotate around the door plate 2 and the door frame 1 respectively along with the rotation of the door plate 2, and the rotating shafts 4 rotate relatively, and the two sheets 3 rotate around the rotating shafts 4.

As shown in fig. 2-8, the rotating shaft 4 is provided with a groove 8, one of the sheets 3 is located in the groove 8 and is rotationally connected with the groove 8, the other sheet 3 is fixedly connected with the rotating shaft 4, the sheet 3 located in the groove 8 is abutted against the inner wall of the groove 8, and because one of the sheets 3 is located in the groove 8, the inner wall of the groove 8 plays a role in limiting and supporting the sheet 3, so that the sheet 3 is prevented from sinking after long-time use, and meanwhile, because the other sheet 3 is fixedly connected with the rotating shaft 4, the sheet 3 rotates along with the rotating shaft 4 when the door plate 2 is rotated, so that the burglary-resisting door is opened or closed, and the sheet 3 can be effectively prevented from sinking after long-time use in a fixed manner, so that the service life of the hinge is prolonged.

As shown in fig. 2-6, the rotating shaft 4 is fixedly connected with the supporting block 7 below the hinge, the supporting block 7 is abutted with one of the sheets 3, further supporting and limiting on the position can be achieved on the hinge, the hinge is prevented from sinking due to the weight of the door plate 2, meanwhile, the supporting block 7 can strengthen the strength of the rotating shaft 4, the rotating shaft 4 is prevented from bending after long-time use, the supporting rod 9 is fixedly connected between the supporting block 7 and the rotating shaft 4, the supporting effect of the supporting block 7 is further improved, the supporting block 7 is further supported, the supporting block 7 can be prevented from bending after the hinge is supported for a long time, the supporting effect of the supporting block 7 is improved, the supporting rod 9 is obliquely arranged, a triangle is formed between the supporting rod 9, the supporting block 7 and the rotating shaft 4, and the supporting effect of the supporting rod 9 is better due to the fact that the triangle has better stability.

As shown in fig. 2-6, the door frame 1 is provided with the caulking groove 6, so when the door plate 2 rotates into the door frame 1, the rotating shaft 4, the supporting block 7 and the supporting rod 9 are gradually rotated into the caulking groove 6 to be hidden along with the rotation of the door plate 2, so that an external person is prevented from seeing the rotating shaft 4 to tilt the door frame, and meanwhile, the design enables the anti-theft door to be normally used, and the rotating shaft 4 and the supporting block 7 are prevented from being blocked when the anti-theft door is closed.

As shown in fig. 2-6, the sliding rail 5 is disposed on the inner bottom surface of the door frame 1, the sliding rail 5 is arc-shaped, the bottom end of the rotating shaft 4 extends into the sliding rail 5, when the door plate 2 rotates, the rotating shaft 4 slides along the sliding groove along the rotation of the door plate 2, the design limits the moving range of the rotating shaft 4, and the rotating shaft 4 is prevented from displacing during rotation, so that the sound rotating shaft 4 enters the caulking groove 6.

The limiting device of the hidden hinge of the burglary-resisting door provided by the utility model is described above, and specific examples are applied to explain the principle and the implementation mode of the burglary-resisting door, and the description of the examples is only used for helping to understand the utility model and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. The limiting device of the hidden hinge of the burglarproof door is arranged between a door plate and the door frame and is characterized by comprising two leaves, wherein the two leaves form a group of hinges, the two leaves are respectively connected to opposite faces of the door frame and the door plate in a rotating mode, the two leaves are connected in a rotating mode through a rotating shaft, the rotating shaft is fixedly connected with a supporting block below the hinges, the supporting block is abutted to one of the supporting blocks, a groove is formed in the rotating shaft, one of the supporting blocks is located in the groove and is connected with the groove in a rotating mode, the other one of the supporting blocks is fixedly connected with the rotating shaft, and the leaf located in the groove is abutted to the inner wall of the groove.

2. The device for limiting the hidden hinge of an antitheft door according to claim 1, wherein the door frame is provided with a caulking groove, and when the door panel is rotated into the door frame, the rotating shaft and the supporting block are rotated into the caulking groove along with the rotation of the door panel.

3. The device for limiting the hidden hinge of the burglary-resisting door of claim 1, wherein the bottom end of the rotating shaft is in abutting connection with the inner bottom surface of the door frame.

4. The device for limiting the hidden hinge of an antitheft door according to claim 1, wherein a sliding rail is arranged on the inner bottom surface of the door frame, the bottom end of the rotating shaft extends into the sliding rail, and when the door plate rotates, the bottom end of the rotating shaft slides along the sliding rail.

5. The device for limiting a hidden hinge of a security door according to claim 4, wherein the sliding rail is arc-shaped.

6. The device for limiting the hidden hinge of the burglary-resisting door according to claim 1, wherein a supporting rod is fixedly connected between the supporting block and the rotating shaft, and the supporting rod is obliquely arranged.

7. The device for limiting a hidden hinge of a security door according to claim 6, wherein a triangle is formed among the supporting rod, the supporting block and the rotating shaft.

8. The device for limiting a hidden hinge of an antitheft door according to claim 1, wherein at least two sets of hinges are provided.

9. The device for limiting hidden hinges of security door according to claim 1, wherein the rotating shafts on two adjacent hinges are connected with each other.