Novel pick-proof locking plate for entrance door

Abstract

The utility model relates to a novel pick-proof lock plate for an entrance door, which is characterized in that the lock plate is fixed on a door frame, the lock plate is provided with a lock opening corresponding to a lock tongue, one side of the lock tongue facing outdoors is an arc surface, and one side of the lock opening facing outdoors is provided with an outwards bent guide plate; the side, facing the indoor space, of the lock opening is provided with an inwards-bent guide piece. The door leaf lock has the advantages that the lock plate is designed in the mode that the inclined tongue hole guides the inner guide edge and the outer guide edge to be turned over, the inclined tongue of the lock plate is provided with the inwards-bent guide piece and the outwards-bent guide piece, and the tightness degree of the door leaf lock opening is adjusted by adjusting the inwards-bent angle of the inwards-bent guide piece; due to the design that the lock plate is bent outwards and the guide plate is bent outwards, the anti-prying and anti-theft functions of the inward opening door are greatly improved, and the defect that the anti-theft performance is reduced due to the opening structure of the door body is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to a household door anti-prizing, anti-theft safety field especially including a novel household door anti-prizing lock piece. BACKGROUND

[0002] The existing household door lock piece has the following defects: 1, the lock piece bevel tongue hole guide bending all fold to the door frame interior, the door leaf and the door frame assembly can cause the lock opening to be too loose or tight after processing and assembly error, if the lock piece has no guide folding structure, once the lock opening is loose, it will cause the door to shake after locking, if the lock opening is tight, it cannot lock the door normally, only by special grinding tool can the guide piece hole be expanded, the household door lock installation and debugging are relatively complicated; 2, the lock piece bevel tongue hole guide bending all fold to the door frame interior, only the lock opening tightness adjustment problem can be solved, when the household door is a single opening door with internal opening and external package, the door leaf and the door frame overlap only have one blocking surface of the lock tongue, the door gap at the lock tongue position is easily pried open from the outside with a card or other thin plate, the anti-theft performance is greatly discounted, the life and property of the owner cannot be effectively protected.

[0003] Therefore, a novel household door anti-prizing lock piece is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects in the prior art and provides a novel household door anti-prizing lock piece.

[0005] The novel household door anti-prizing lock piece is fixed on the door frame, the lock piece is provided with a lock opening corresponding to the lock tongue, the lock tongue is arc-shaped towards the outdoor side, and the lock opening is provided with an outward bending guide piece towards the outdoor side; the lock opening is provided with an inward bending guide piece towards the indoor side.

[0006] Preferably, the lock opening width is greater than the lock tongue thickness, the inward bending guide piece surface is in contact with the lock tongue, and the inward bending guide piece is used for adjusting the lock opening tightness.

[0007] Preferably, the door frame is provided with a mounting hole corresponding to the lock piece, the mounting hole surface is fixed with a lining plate, and the door frame is fixedly connected with the lock piece through the lining plate.

[0008] Preferably, the outward bending guide piece protrudes from the lock piece surface, and the outward bending guide piece is in contact with the lock tongue arc surface.

[0009] The utility model has the advantages that:

[0010] 1) the lock piece adopts the bevel tongue hole guide inward and outward double guide edge folding mode design, the lock piece bevel tongue is designed with an inward bending guide piece and an outward bending guide piece process, the door leaf lock opening tightness is adjusted by adjusting the inward bending guide piece inward bending angle.

[0011] 2) The outward bending design of the lock plate and the guide plate of this utility model greatly improves the anti-pry and anti-theft function of the inward opening door, and makes up for the defect of reduced anti-theft performance caused by the opening direction structure of the door.

[0012] 3) The lock plate of this utility model is embedded in the door frame for installation. The guide plate is bent outward and not exposed, which has good integrity and is simple and beautiful. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model;

[0014] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0015] Figure 3 This is an enlarged detailed view of the locking plate of this utility model;

[0016] Figure 4 This is a side view of the locking plate of this utility model;

[0017] Figure 5 for Figure 3 Sectional view of AA;

[0018] Figure 6 for Figure 3 BB section view.

[0019] Explanation of reference numerals in the attached diagram: 1. Lock plate; 2. Door frame; 3. Door leaf; 4. Lock body; 11. Inwardly bent guide plate; 12. Outwardly bent guide plate; 13. Lock mouth; 41. Lock tongue. Detailed Implementation

[0020] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that, for those skilled in the art, several modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0021] As one example, such as Figures 1 to 6 As shown, this new type of anti-pry lock for entrance doors has a lock plate 1 fixed on the door frame 2. The door frame 2 has mounting holes corresponding to the lock plate 1, and a backing plate is fixed on the surface of the mounting holes. The door frame 2 is fixedly connected to the lock plate 1 through the backing plate.

[0022] In this embodiment, as Figure 2 As shown, the latch 41 has an arc surface facing the outside, and a lock opening 13 is provided on the lock plate 1 corresponding to the latch 41. The lock opening 13 has an outwardly bent guide plate 12 on the outside side, and the outwardly bent guide plate 12 protrudes from the surface of the lock plate 1.

[0023] like Figures 3 to 6As shown, the lock opening 13 is provided with an inwardly bent guide 11 towards the indoor side. The width of the lock opening 13 is greater than the thickness of the lock tongue 41, and the inwardly bent guide 11 is used to adjust the tightness of the lock opening 13. Specifically, by adjusting the inwardly bent angle of the inwardly bent guide 11, the area of the inwardly bent guide 11 shielding the lock opening 13 is adjusted, so as to realize the tightness adjustment of the door leaf lock opening. When the lock tongue 41 is inserted into the lock opening 13, the surface of the inwardly bent guide 11 and the back surface of the lock tongue 41 are in contact, and the outwardly bent guide 12 and the curved surface of the lock tongue 41 are in contact.

[0024] The outwardly bent guide 12 provided on the lock piece 1 greatly improves the anti-picking and anti-theft function of the inwardly opening door. Even if a card or thin plate is inserted into the gap of the door leaf at the position of the lock tongue 41 from the outside of the door, it can only contact the outwardly bent guide 12, and will not directly cause the curved surface of the lock tongue 41 to slide, thereby making up for the defect of the decline of the anti-theft performance caused by the structure of the door body opening.

[0025] In this embodiment, a specific new anti-picking lock piece for a household door is provided. In the manufacturing and installation, the lock piece 1 is obtained by blanking and punching the lock piece 1 under the punch, the inwardly bent guide 11 and the outwardly bent guide 12 are punched in the inward and outward directions respectively, the distance of the outwardly bent guide 12 and the inwardly bent guide 11 protruding from the surface of the lock piece 1 is 4-5 mm. Then, the counterbores are made on the lock piece mounting holes, and the distance between the mounting holes is 190 mm. The door frame 2 is provided with a hole position corresponding to the size of the lock piece 1 at the corresponding installation height position of the lock body 4, which can be die punched or laser cut. The fixed lining plate matched with the lock piece 1 is welded on the inner side of the lock piece hole of the bent door frame 2. After the door frame 2 is finished, the lock piece 1 can be installed, and the lock piece 1 and the door frame 2 can be fixed by screws or rivets.

[0026] After the household door frame and leaf are assembled, the lock is installed. The frame and leaf lock openings are usually designed as clearance fit, and the tightness of the lock opening 13 can be adjusted by adjusting the inwardly bent guide 11 of the lock piece 1. The outwardly bent guide 12 of the lock piece 1 can block the tools such as cards and thin plates used by the criminals to pry open the lock body latch, thereby improving the anti-theft performance of the household door.

Claims

1. A novel anti-pry lock strip for a front door, characterized in that, The lock piece is fixed on the door frame, a lock hole is formed on the lock piece corresponding to the lock tongue, the lock tongue is arc-shaped towards the outdoor side, and the lock hole is provided with an outwardly bent guide piece towards the outdoor side.

2. The new anti-prying door lock strip according to claim 1, characterized in that, The lock hole is wider than the thickness of the lock tongue, the inwardly bent guide piece is in contact with the lock tongue, and the inwardly bent guide piece is used for adjusting the tightness of the lock hole.

3. The new anti-prying door lock strip according to claim 1, wherein, A mounting hole is formed on the door frame corresponding to the lock piece, a lining plate is fixed on the surface of the mounting hole, and the door frame is fixedly connected with the lock piece through the lining plate.

4. The new anti-pry door lock strip according to claim 1, wherein, The outwardly bent guide piece protrudes from the surface of the lock piece, and the outwardly bent guide piece is in contact with the arc surface of the lock tongue.

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