Anti-disassembly door lock device

Abstract

The utility model provides an anti-disassembly door lock device, which relates to the technical field of door locks and comprises two door lock plates, a lock cylinder is arranged between the two door lock plates, two fixing plates are arranged at the top of the lock cylinder, a plurality of limiting plates are arranged on the front side of the lock cylinder, and limiting rods are arranged at the bottoms of the limiting plates. A plurality of limiting grooves are formed in the north side of the door lock plate close to the front face, a plurality of locking grooves are formed in the door lock plate close to the front face, a locking structure is arranged between every two adjacent limiting plates, and limiting rods can be directly inserted into the limiting grooves, so that when the door lock plate is pulled out towards the outer side, the limiting grooves are clamped by the limiting rods, and the locking structure is locked. The locking rod of the locking structure can be directly inserted into the locking groove and cannot be taken out, then locking in the vertical direction is achieved, the locking rod and the locking groove are used in a matched mode, disassembly prevention can be achieved, and no detachable screw or other structures exist outside.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to an anti-disassembly door lock device. Background Art

[0002] As the name implies, a door lock is a device used to lock a door to prevent others from opening it. There are many classifications of door locks, and the requirements for door locks vary in different occasions. Ordinary families generally use anti-theft door locks, which are highly secure and relatively inexpensive. As a security product, a door lock must have security and stability. Security can be measured from two aspects: one is to resist intentional damage, pranks, and deliberate prying, drilling and other violent damages. In this regard, the mechanical strength of mechanical locks and electronic door locks generally meets the requirements.

[0003] After the existing door lock is installed, there will be screws exposed, so it can be easily disassembled, which will lead to low security. Therefore, we propose an anti-disassembly door lock device. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art. After the existing door lock is installed, there will be screws exposed, so it can be easily disassembled, which will lead to low security.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An anti-disassembly door lock device includes a door lock plate. A lock core is arranged between the two door lock plates. Two fixing plates are arranged at the top of the lock core. A plurality of limiting plates are arranged on the front of the lock core. Limiting rods are arranged at the bottoms of the plurality of limiting plates. A plurality of limiting grooves are arranged on the back side of the door lock plate near the front. A plurality of locking grooves are arranged inside the door lock plate near the front. A locking structure is arranged between two adjacent limiting plates;

[0007] The locking structure includes a structure body. Two installation grooves are symmetrically arranged inside the structure body. Slide rails are arranged at the top and bottom inside the two installation grooves. Sliders are arranged on the four slide rails. Locking rods are arranged between two adjacent sliders. Telescopic springs are arranged on the two locking rods near the center.

[0008] As a preferred scheme of the utility model, connecting shafts are arranged on the outer sides of the two door lock plates, and handrails are arranged on the outer sides of the two connecting shafts.

[0009] The technical effect of adopting the above further scheme is that the handrail can open the door lock through the connecting shaft.

[0010] As a preferred solution of the present utility model, lock holes are provided on both of the two lock plates and near the bottom.

[0011] The technical effect of adopting the above further solution is that the key can be directly inserted into the position of the lock hole, and then the door lock can be opened.

[0012] As a preferred solution of the present utility model, the limiting rod is inserted into the limiting groove for use.

[0013] The technical effect of adopting the above further solution is that the limiting rod can be directly inserted into the limiting groove, and then locking is achieved.

[0014] As a preferred solution of the present utility model, the locking rod is slidably connected between the slider and the slide rail.

[0015] The technical effect of adopting the above further solution is that the slider can limit and clamp the locking rod, and then it can slide out through the slide rail, making the sliding-out direction fixed.

[0016] As a preferred solution of the present utility model, the locking rod is used in cooperation with the telescopic spring.

[0017] The technical effect of adopting the above further solution is that the telescopic spring can eject the locking rod.

[0018] Compared with the prior art, the beneficial effect of the present utility model is:

[0019] In the present utility model, the limiting rod can be directly inserted into the limiting groove. When pulling outwards, the limiting rod will lock the limiting groove and cannot be removed from the outside direction. And the locking rod of the locking structure can be directly inserted into the locking groove and cannot be taken out, thereby achieving locking in the vertical direction. The two are used in cooperation to achieve anti-disassembly, and there are no external structures such as screws that can be disassembled, avoiding the problem that after some door locks are installed, the screws are exposed outside and are easily disassembled, which will lead to low safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the main structure of an anti-disassembly door lock device provided by the present utility model;

[0021] Figure 2 is a schematic diagram of the connection between the lock core and the lock plate of an anti-disassembly door lock device provided by the present utility model;

[0022] Figure 3 is a schematic diagram of the limiting rod and the limiting groove of an anti-disassembly door lock device provided by the present utility model;

[0023] Figure 4 is a schematic diagram of the locking structure of an anti-disassembly door lock device provided by the present utility model.

[0024] Legend: 1. Door lock plate; 2. Connecting shaft; 3. Armrest; 4. Lock hole; 5. Lock core; 6. Fixed plate; 7. Limiting plate; 8. Limiting rod; 9. Limiting groove; 10. Locking groove; 11. Locking structure; 111. Structure body; 112. Installation groove; 113. Slide rail; 114. Slide block; 115. Locking rod; 116. Telescopic spring. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Embodiment 1

[0029] As Figures 1-4As shown in the figure, the present utility model provides a technical solution: an anti-disassembly door lock device, including a door lock plate 1. A lock core 5 is provided between two door lock plates 1. Two fixing plates 6 are provided at the top of the lock core 5. A plurality of limiting plates 7 are provided on the front of the lock core 5. Limiting rods 8 are provided at the bottoms of the plurality of limiting plates 7. A plurality of limiting grooves 9 are provided on the back side of the door lock plate 1 near the front. A plurality of locking grooves 10 are provided inside the door lock plate 1 near the front. A locking structure 11 is provided between two adjacent limiting plates 7. The locking structure 11 includes a structure body 111. Two mounting grooves 112 are symmetrically provided inside the structure body 111. Slide rails 113 are provided at the top and bottom inside the two mounting grooves 112. Sliders 114 are provided on the four slide rails 113. Locking rods 115 are provided between two adjacent sliders 114. Telescopic springs 116 are provided near the center on the two locking rods 115. The limiting rod 8 can be directly inserted into the limiting groove 9. When pulling outwards, the limiting rod 8 will lock the limiting groove 9 and cannot be removed from the outside direction. The locking rod 115 of the locking structure 11 can be directly inserted into the locking groove and cannot be taken out, thereby realizing locking in the vertical direction. The two are used in combination to achieve anti-disassembly, and there are no structures such as screws that can be disassembled externally, avoiding the problem that after some door locks are installed, the screws are exposed outside, so it is very easy to disassemble them, which will lead to low safety. Embodiment 2

[0030] As Figures 1-4 As shown in the figure, the present utility model provides a technical solution: Connecting shafts 2 are provided on the outer sides of the two door lock plates 1. Handrails 3 are provided on the outer sides of the two connecting shafts 2. The handrail 3 can open the door lock through the connecting shaft 2. Lock holes 4 are provided near the bottom on the two door lock plates 1. The key can be directly inserted into the position of the lock hole 4, and then the door lock can be opened. The limiting rod 8 is inserted into the limiting groove 9 for use. The limiting rod 8 can be directly inserted into the limiting groove 9, thereby realizing locking. The locking rod 115 is slidably connected between the slider 114 and the slide rail 113. The slider 114 can limit and clamp the locking rod 115, and then can slide out through the slide rail 113, so that the sliding out direction is fixed. The locking rod 115 and the telescopic spring 116 are used in combination. The telescopic spring 116 can eject the locking rod 115.

[0031] The working process of the present utility model: When using an anti-disassembly door lock device, first, during installation, the lock core 5 is installed in the door, then the limiting groove 9 of the door lock plate 1 is connected to the limiting rod 8, and then the locking rod 115 of the locking structure 11 is held by a clip so that the locking rod 115 remains inside the mounting groove 112. Then the locking structure 11 is aligned with the locking groove 10 and inserted. Then, due to the removal of the barrier, the telescopic spring 116 will eject the locking rod 115 into the locking groove 10 to form a fixation.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-disassembly door lock device, comprising a door lock plate (1), characterized in that: A lock core (5) is provided between the two door lock plates (1), two fixing plates (6) are provided on the top of the lock core (5), a plurality of limit plates (7) are provided on the front of the lock core (5), a plurality of limit rods (8) are provided at the bottom of the plurality of limit plates (7), a plurality of limit grooves (9) are provided on the back side of the door lock plate (1) near the front, a plurality of locking grooves (10) are provided inside the door lock plate (1) near the front, and a locking structure (11) is provided between two adjacent limit plates (7); The locking structure (11) comprises a structural body (111), wherein two mounting grooves (112) are symmetrically arranged inside the structural body (111), and slide rails (113) are arranged inside the two mounting grooves (112) and at the top and bottom, and sliders (114) are arranged on the four sliders (113), and a locking rod (115) is arranged between two adjacent sliders (114), and a telescopic spring (116) is arranged on the two locking rods (115) and near the center.

2. The anti-disassembly door lock device according to claim 1, characterized in that: The outer sides of the two door lock plates (1) are each provided with a connecting shaft (2), and the outer sides of the two connecting shafts (2) are each provided with a handrail (3).

3. The anti-disassembly door lock device according to claim 1, characterized in that: Lock holes (4) are provided on the two door lock plates (1) near the bottom.

4. The anti-disassembly door lock device according to claim 1, characterized in that: The limiting rod (8) is inserted into the limiting groove (9) for use.

5. The anti-disassembly door lock device according to claim 1, characterized in that: The locking rod (115) is slidably connected to the slide rail (113) via the slider (114).

6. The anti-disassembly door lock device according to claim 1, characterized in that: The locking rod (115) and the telescopic spring (116) are used in coordination with each other.

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