Door lock capable of being quickly assembled and disassembled

Abstract

The utility model relates to the technical field of door locks, and discloses a quickly assembled and disassembled door lock which comprises a lock body shell, an installation plate is fixedly connected to the outer surface of the lock body shell, positioning rods are fixedly connected to the positions, located on the upper side and the lower side of the lock body shell, of the outer surface of the installation plate, and a lock cylinder is arranged on the inner side wall of the lock body shell. A fixing plate is fixedly connected to the inner side wall of the lock body shell, a limiting column is fixedly connected to the position, located in the lock body shell, of the outer surface of the mounting plate, a movable block is slidably connected to the outer surface of the limiting column, a rotating shaft is rotatably connected to the inner side wall of the lock body shell, and a transmission piece is fixedly connected to the outer surface of the rotating shaft; and a first supporting lug block is fixedly connected to the outer surface of the transmission piece, a limiting groove is formed in the outer surface of the first supporting lug block, a fixing bolt is inserted into the inner side wall of the movable block, a telescopic fixing block is slidably connected to the inner side wall of the oblique sliding groove, and the device has the beneficial effect that the lock body can be conveniently and rapidly mounted and dismounted.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and more specifically, to a door lock that can be quickly installed and removed. Background Technology

[0002] Door locks, as an important hardware accessory widely used at building entrances and exits, primarily function to lock and unlock doors through specific mechanical or electronic structures, thereby ensuring the security of the building's interior space and preventing unauthorized personnel from entering. Door locks come in various types, including traditional mechanical locks such as pin tumbler locks and leaf locks, as well as emerging electronic locks such as combination locks and fingerprint locks, to meet the security needs of different scenarios and users.

[0003] However, existing conventional door locks have significant drawbacks in terms of installation and disassembly. During installation, at least five bolts generally need to be tightened, including four bolts for securing the lock body and one bolt for securing the lock cylinder. This process is extremely cumbersome and consumes a great deal of time and energy for installers. It is even more difficult for non-professionals to operate. When the door lock needs to be disassembled for maintenance, function upgrades, or style changes, the same task of removing at least five bolts must be faced. Repeated disassembly can also easily damage the door body due to improper operation, resulting in surface scratches, deformation, or even damage to the internal structure, affecting the service life and security of the door body. It is evident that the inconvenience of existing door locks in terms of installation and disassembly urgently needs to be solved by door lock technology that allows for quick installation and disassembly. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a door lock that can be quickly installed and removed, aiming to solve the problems in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-installation and disassembly door lock, comprising a lock body shell, characterized in that: a mounting plate is fixedly connected to the outer surface of the lock body shell; positioning rods are fixedly connected to the upper and lower sides of the outer surface of the mounting plate; a tongue is provided on the inner sidewall of the mounting plate; an anti-theft lock tongue is slidably connected to the inner sidewall of the mounting plate; a lock cylinder is provided on the inner sidewall of the lock body shell; a fixing plate is fixedly connected to the inner sidewall of the lock body shell; a limiting post is fixedly connected to the outer surface of the mounting plate inside the lock body shell; a movable block is slidably connected to the outer surface of the limiting post; a rotating shaft is rotatably connected to the inner sidewall of the lock body shell; a transmission plate is fixedly connected to the outer surface of the rotating shaft; a first lug is fixedly connected to the outer surface of the transmission plate; a limiting groove is formed on the outer surface of the first lug; a fixing bolt is inserted into the inner sidewall of the movable block; an oblique sliding groove is fixedly connected to the inner sidewall of the lock body shell; and a telescopic fixing block is slidably connected to the inner sidewall of the oblique sliding groove.

[0008] The present invention is further configured such that four positioning rods are evenly distributed in a rectangular array, and the interior of the lock body shell is respectively provided with a drive module for the oblique tongue and a drive module for the anti-theft lock tongue.

[0009] The present invention is further configured such that a threaded hole is provided on the outer surface of the lock cylinder, one end of the fixing bolt is threadedly connected to the inner wall of the threaded hole, and the fixing bolt passes through the middle of the spring.

[0010] The present invention is further configured such that a limiting rod is fixedly connected to the outer surface of the movable block, and the two ends of the limiting rod are slidably connected to the inner sidewalls of the two limiting grooves respectively. Two limiting rods are provided and arranged symmetrically in the upper and lower parts.

[0011] The present invention is further configured such that a spring is fixedly connected to the outer surface of the fixed plate, and one end of the spring abuts against one end of the movable block.

[0012] The present invention is further configured such that the outer surface of the telescopic fixing block is rotatably connected to a first connecting rod via a third lug, the outer surface of the transmission plate is fixedly connected to a second lug, and one end of the first connecting rod is rotatably connected to the inner sidewall of the second lug via a shaft.

[0013] The present invention is further configured such that there are two oblique sliding grooves and two telescopic fixing blocks respectively located on the upper and lower sides of the inner wall of the lock body shell; there are two rotating shafts, two transmission plates and two first connecting rods arranged symmetrically in the upper and lower parts; and the upper telescopic fixing block is rotatably connected to the upper first connecting rod through the second connecting rod.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a door lock that can be installed and removed quickly, and has the following beneficial effects:

[0016] 1. This quick-installation and disassembly door lock, through the arrangement of a fixed plate, a movable block, a transmission plate, an oblique slide groove, a telescopic fixing block, and a first connecting rod, achieves the effect of easy and quick installation and disassembly. Through the coordinated arrangement of the fixed plate, movable block, transmission plate, oblique slide groove, telescopic fixing block, and first connecting rod, during use, only the lock cylinder needs to be inserted into the corresponding groove on the lock body shell, and then the fixing bolt is passed through the movable block and screwed into the threaded hole. As the fixing bolt is tightened, it drives the movable block to move to the left, causing the rotating shaft and transmission plate to rotate. This, in turn, drives the telescopic fixing block through the first connecting rod to extend obliquely from inside the oblique slide groove, thus clamping the telescopic fixing block against the inner side of the mounting seat on the door body, completing the installation. The entire process only requires tightening one fixing bolt, thereby achieving the purpose of easy and quick installation and disassembly.

[0017] 2. This quick-installation and disassembly door lock, through the setting of the second link, enables the quick-installation and disassembly door lock to facilitate the transmission of the upper telescopic fixing block. Through the cooperation of the two second links, it can effectively prevent the structure from affecting the original internal structure of the lock body shell during use. The two second links are directly set on the front and rear sides of the drive structure of the latch and the anti-theft lock tongue, thereby achieving the purpose of avoiding affecting the original internal structure of the lock body shell. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the interior of the lock body shell of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the lock body shell of this utility model;

[0021] Figure 4 This utility model Figure 2 Schematic diagram of the structure at point A;

[0022] Figure 5 This utility model Figure 2 A schematic diagram of the structure at point B.

[0023] In the diagram: 1. Lock body shell; 2. Mounting plate; 3. Positioning rod; 4. Slanted latch; 5. Anti-theft lock tongue; 6. Lock cylinder; 7. Threaded hole; 8. Fixing plate; 9. Limiting post; 10. Movable block; 11. Limiting rod; 12. Rotating shaft; 13. Transmission plate; 14. First lug; 15. Limiting groove; 16. Spring; 17. Fixing bolt; 18. Second lug; 19. Slanted slide groove; 20. Telescopic fixing block; 21. Third lug; 22. First connecting rod; 23. Second connecting rod. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0027] Please see Figures 1-5 A quick-installation and disassembly door lock includes a lock body shell 1, characterized in that: a mounting plate 2 is fixedly connected to the outer surface of the lock body shell 1; positioning rods 3 are fixedly connected to the upper and lower sides of the outer surface of the mounting plate 2; a latch 4 is provided on the inner side wall of the mounting plate 2; an anti-theft lock tongue 5 is slidably connected to the inner side wall of the mounting plate 2; a lock cylinder 6 is provided on the inner side wall of the lock body shell 1; a fixing plate 8 is fixedly connected to the inner side wall of the lock body shell 1; and a limiter is fixedly connected to the outer surface of the mounting plate 2 inside the lock body shell 1. The outer surface of the limiting post 9 is slidably connected to a movable block 10. The inner wall of the lock body shell 1 is rotatably connected to a rotating shaft 12. The outer surface of the rotating shaft 12 is fixedly connected to a transmission plate 13. The outer surface of the transmission plate 13 is fixedly connected to a first ear block 14. A limiting groove 15 is opened on the outer surface of the first ear block 14. A fixing bolt 17 is inserted into the inner wall of the movable block 10. The inner wall of the lock body shell 1 is fixedly connected to an oblique slide groove 19. The inner wall of the oblique slide groove 19 is slidably connected to a telescopic fixing block 20.

[0028] The positioning rods 3 are arranged in a rectangular array and are evenly distributed. The lock body shell 1 is equipped with the drive module of the latch 4 and the drive module of the anti-theft lock tongue 5 (it should be noted that the drive module of the latch 4 and the drive module of the anti-theft lock tongue 5 are existing technologies and this application has not modified these two parts). The four positioning rods 3 arranged in a rectangular array can provide a more stable positioning effect for the door lock installation, ensuring that the door lock is accurately positioned and not easily shaken during installation.

[0029] The outer surface of the lock cylinder 6 is provided with a threaded hole 7. One end of the fixing bolt 17 is threaded to the inner wall of the threaded hole 7. The fixing bolt 17 passes through the middle of the spring 16. The fixing bolt 17 passes through the middle of the spring 16. With the elasticity of the spring 16, it can play a buffering role while fixing, avoiding damage to the components due to over-tightening of the fixing bolt 17, and enhancing the overall durability of the door lock.

[0030] A limiting rod 11 is fixedly connected to the outer surface of the movable block 10, and the two ends of the limiting rod 11 are slidably connected to the inner sidewalls of the two limiting grooves 15 respectively.

[0031] A spring 16 is fixedly connected to the outer surface of the fixed plate 8, and one end of the spring 16 abuts against one end of the movable block 10.

[0032] The outer surface of the telescopic fixing block 20 is rotatably connected to the first connecting rod 22 via the third lug 21, and the outer surface of the transmission plate 13 is fixedly connected to the second lug 18. One end of the first connecting rod 22 is rotatably connected to the inner side wall of the second lug 18 via a shaft. When the door lock is installed or removed, the rotation of the transmission plate 13 can be smoothly transmitted to the telescopic fixing block 20, so that the telescopic fixing block 20 can accurately extend or retract at an angle, effectively clamping or releasing the door mounting seat, and ensuring the stable operation of the door lock's quick installation and removal function.

[0033] Two oblique slides 19 and two telescopic fixing blocks 20 are provided, respectively located on the upper and lower sides of the inner wall of the lock body shell 1. Two limit rods 11, two rotating shafts 12, two transmission plates 13 and two first connecting rods 22 are provided, arranged symmetrically in the upper and lower parts. The upper telescopic fixing block 20 is rotatably connected to the upper first connecting rod 22 through the second connecting rod 23. The second connecting rod 23 connects the upper telescopic fixing block 20 and the first connecting rod 22, which enables the upper and lower telescopic fixing blocks 20 to move synchronously, clamping the door mounting base more evenly during installation, improving the firmness of the door lock installation, and ensuring that the door lock will not loosen on one side during use.

[0034] Specifically, the lock body shell 1, fixing plate 8, movable block 10, transmission plate 13, oblique slide groove 19, telescopic fixing block 20, and first connecting rod 22 work together. During installation, first insert 1 into the door body, then align 3 with the existing bolt holes and insert it. Next, insert the lock cylinder 6 into the corresponding slot on the lock body shell 1. Then, screw the fixing bolt 17 through the movable block 10 and into the threaded hole 7. As the fixing bolt 17 is tightened, the movable block 10 moves to the left driven by the bolt. The movable block 10 drives the rotating shaft 12 and transmission plate 13 to rotate. When the transmission plate 13 rotates, it drives the first connecting rod 22 to move through the second lug block 18. The first connecting rod 22 then drives the telescopic fixing block 20 from the oblique slide groove. The internal oblique extension of 19 allows the telescopic fixing block 20 to clamp the inner side of the mounting seat on the door body, completing the installation. The entire process only requires tightening one fixing bolt 17, which is much simpler than the traditional door lock that requires at least four bolts, thus achieving rapid installation. Disassembly is done by simply reversing the operation, which is equally convenient and quick. The setting of the second link 23 plays a key role. The two second links 23 are respectively set on the front and rear sides of the drive structure of the oblique tongue 4 and the anti-theft lock tongue 5. During the transmission of the upper telescopic fixing block 20, it can effectively prevent the door lock structure from affecting the original internal structure of the lock body shell 1, ensuring the normal operation of components such as the oblique tongue 4 and the anti-theft lock tongue 5, and maintaining the stability of the overall function of the door lock.

[0035] In summary, when using the entire device: First, insert the lock cylinder 6 into the corresponding slot on the lock body shell 1. Then, pass the fixing bolt 17 through the movable block 10 and screw it into the threaded hole 7 on the outer surface of the lock cylinder 6. As the fixing bolt 17 is gradually tightened, the movable block 10 is driven to move to the left. The limiting rod 11, fixedly connected to the outer surface of the movable block 10, slides within the limiting groove 15 on the outer surface of the first lug 14, ensuring smooth movement of the movable block 10. The movable block 10 drives the rotating shaft 12 and the transmission plate 13 to rotate. The second lug 18, fixedly connected to the outer surface of the transmission plate 13, drives the shaft... The first connecting rod 22 rotates, and one end of the first connecting rod 22 is rotatably connected to the telescopic fixing block 20 through the third support block 21, thereby driving the telescopic fixing block 20 to extend obliquely from the oblique slide groove 19 and clamp the inner side of the mounting seat on the door body to complete the installation. When disassembling, the fixing bolt 17 is turned in the opposite direction to retract the telescopic fixing block 20, and the door lock can be easily removed. During the whole process, the four positioning rods 3 distributed in a rectangular array can assist in positioning and ensure the installation accuracy. The second connecting rod 23 can prevent the original internal structure of the lock body shell 1 from being affected when driving the upper telescopic fixing block 20, ensuring the normal operation of the door lock.

[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick release door lock comprising a lock body housing (1) characterised in that: The outer surface of the lock body shell (1) is fixedly connected with a mounting plate (2), the outer surface of the mounting plate (2) is fixedly connected with positioning rods (3) on the upper and lower sides of the lock body shell (1), the inner side wall of the mounting plate (2) is provided with a latch (4), the inner side wall of the mounting plate (2) is slidably connected with a burglarproof latch (5), the inner side wall of the lock body shell (1) is provided with a lock cylinder (6), the inner side wall of the lock body shell (1) is fixedly connected with a fixed plate (8), the outer surface of the mounting plate (2) is fixedly connected with a limiting column (9) inside the lock body shell (1), the outer surface of the limiting column (9) is slidably connected with a movable block (10), the inner side wall of the lock body shell (1) is rotatably connected with a rotating shaft (12), the outer surface of the rotating shaft (12) is fixedly connected with a transmission piece (13), the outer surface of the transmission piece (13) is fixedly connected with a first lug block (14), the outer surface of the first lug block (14) is provided with a limiting groove (15), the inner side wall of the movable block (10) is inserted with a fixed bolt (17), the inner side wall of the lock body shell (1) is fixedly connected with an oblique sliding groove (19), and the inner side wall of the oblique sliding groove (19) is slidably connected with an extension fixing block (20).

2. The quick release door lock according to claim 1, wherein: The positioning rods (3) are arranged in four and evenly distributed in a rectangular array, and the inner side wall of the lock body shell (1) is respectively provided with a drive module of the latch (4) and a drive module of the burglarproof latch (5).

3. The quick release door lock of claim 1, wherein: The outer surface of the lock cylinder (6) is provided with a threaded hole (7), one end of the fixed bolt (17) is threadedly connected with the inner side wall of the threaded hole (7), and the fixed bolt (17) penetrates through the middle part of the spring (16).

4. The quick release door lock of claim 1, wherein: The outer surface of the movable block (10) is fixedly connected with a limiting rod (11), the two ends of the limiting rod (11) are slidably connected with the inner side walls of two limiting grooves (15), and the limiting rod (11) is provided with two and symmetrically arranged on the upper and lower sides.

5. The quick release door lock of claim 1, wherein: The outer surface of the fixed plate (8) is fixedly connected with a spring (16), and one end of the spring (16) abuts against one end of the movable block (10).

6. The quick release door lock of claim 1, wherein: The outer surface of the extension fixing block (20) is rotatably connected with a first connecting rod (22) through a third lug block (21), the outer surface of the transmission piece (13) is fixedly connected with a second lug block (18), and one end of the first connecting rod (22) is rotatably connected with the inner side wall of the second lug block (18) through a shaft rod.

7. The quick release door lock of claim 1, wherein: The oblique sliding groove (19) and the extension fixing block (20) are both provided with two and arranged on the upper and lower sides of the inner side wall of the lock body shell (1), the rotating shaft (12), the transmission piece (13) and the first connecting rod (22) are all provided with two and symmetrically arranged on the upper and lower sides, and the upper extension fixing block (20) is rotatably connected with the upper first connecting rod (22) through a second connecting rod (23).

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