Quick assembly type door lock mortise lock
By using the auxiliary positioning and deformation components of the quick-assembly door lock cylinder, the installation gap problem during lock body replacement is solved, achieving a tight connection between the lock body and the door body, enhancing the door lock's impact resistance and stability, and ensuring security performance.
Patent Information
- Application Number
- CN202522132429.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2035-10-09
AI Technical Summary
When replacing the lock body of an existing door lock, it is difficult to find a matching specification, resulting in installation gaps that cannot effectively transmit external force. This may cause the lock body to loosen or come out, affecting security performance.
A quick-assembly door lock cylinder lock was designed, which includes an auxiliary positioning component and a deformation component. Through structures such as a slide bar, a return spring, and a torsion spring, it automatically compensates for the differences in specifications between the new and old lock bodies, forming a tightly interlocking overall structure, eliminating installation gaps, and enhancing impact resistance.
This design eliminates the need for repairing old lock bodies, creating a tight connection between the lock body and the door. This enhances the lock's impact resistance and energy dissipation capabilities, preventing the lock body from loosening or falling off, and improving installation stability and security.
Smart Images
Figure CN223536153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door lock assembly technology, specifically a quick-assembly door lock mortise lock. Background Technology
[0002] Door locks are devices that control the opening and closing of doors. Common mechanical locks are divided into three types: ball locks, lever locks, and mortise locks. When assembling a door lock, first drill the lock body hole on the side of the door according to the hole cutting diagram, drill the core hole on the door surface, install the lock body and fix the lock core, then install the inner and outer handles, align the snap box with the door frame, and test whether the door opens and closes tightly without jamming, whether the lock body is stable and the bolt can extend and retract flexibly to complete the basic assembly.
[0003] As the core actuator of the entire door lock system, the lock body needs to be precisely matched with the pre-cut mounting slot on the door. Its installation firmness is directly related to the security performance of the door lock. Therefore, screws must be used to firmly fix the lock body to the door and ensure that the lock tongue can accurately engage with the strike plate on the door frame to form a reliable and effective locking protection.
[0004] However, when the lock body fails and needs to be replaced, if it is difficult to find a replacement lock body of the same specifications, it is easy to cause an installation gap between the new lock body and the groove. When the door is subjected to a sudden strong external force (such as sudden closing under strong wind), the loose lock body cannot evenly transmit the impact force to the entire door, causing stress to concentrate on the wood around the lock body fixing hole, which can easily cause local splitting or even structural damage. In severe cases, the entire lock body may come out of the door, causing the door lock function to be lost instantly. Therefore, a quick-assembly door lock mortise lock is proposed to address the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a quick-assembly door lock cylinder lock to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A quick-assembly door lock cylinder includes a front plate and mounting holes. A lock body is welded and fixed to one side of the front plate. Auxiliary positioning components are engaged at the upper and lower ends of the lock body. A deformable component is fixedly connected to one side of the front plate. The auxiliary positioning component includes a locking seat. A slide rod is slidably connected to the inner side of the locking seat. A rod head is welded to one end of the slide rod. A fixing ring is fixedly connected through the slide rod. A return spring is sleeved on the outer side of the slide rod. A fixing shaft is fixedly installed through the inner side of the fixing ring. A torsion spring is sleeved on the outer side of the fixing shaft. A rotating plate is rotatably connected to the outer side of the fixing shaft. An inter-plate hole is opened on the inner side of the rotating plate. The deformable component includes a fixed threaded short tube. A first connecting rod is hinged to one side of the fixed threaded short tube. A connecting block is hinged to one end of the first connecting rod. A second connecting rod is hinged to one side of the connecting block. A sliding threaded long tube is hinged to one end of the second connecting rod. A conical block is fixedly connected to the inner side of the connecting block.
[0008] As a further optimization of this utility model, the front plate has two mounting holes on one side, a limiting frame is fixedly connected to the outer side of the front plate, a friction groove is provided on one side of the limiting frame, and a retaining frame is welded to one side of the limiting frame.
[0009] As a further optimization of this utility model, the projection of the limiting frame in the vertical direction is "T" shaped, the vertical cross-section of the card frame is triangular, and the friction groove is formed around the outside of the card frame.
[0010] As a further optimization of this utility model, the following features are provided: the side of the locking seat away from the front plate is arc-shaped; the projection of the slide rod in the vertical direction is "I"-shaped; the central axis of the rod head and the central axis of the slide rod are on the same straight line; and the two ends of the return spring are respectively fixedly connected to the locking seat and the fixing ring.
[0011] As a further optimization of this utility model, the following features are provided: two torsion springs are provided, which are symmetrically arranged on both sides of the rotating plate. The two ends of the torsion springs are respectively fixedly connected to the rotating plate and the fixed shaft. The rotating plate is arranged between the fixed threaded short pipe and the sliding threaded long pipe. The width of the hole between the plates is equal to the inner diameter of the fixed threaded short pipe, and the length of the hole between the plates is twice the inner diameter of the fixed threaded short pipe.
[0012] As a further optimization of this utility model, the central axis of the fixed threaded short tube and the central axis of the sliding threaded long tube are on the same straight line. The fixed threaded short tube is connected to the inner side of the mounting hole. A portion of the sliding threaded long tube is slidably disposed in the snap-fit seat. The end of the sliding threaded long tube near the fixed threaded short tube abuts against the rotating plate.
[0013] As a further optimization of this utility model, there are two first connecting rods, which are symmetrically distributed on both sides of the fixed threaded short pipe. The positions of the connecting block and the second connecting rod correspond one-to-one with the positions of the first connecting rods. A portion of the conical block protrudes outward from the connecting block.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this utility model, the auxiliary positioning component and the deformation component are designed so that the user does not need to repair the old groove. The user only needs to install the lock body and tighten the screws in the conventional way. While completing the mechanical connection of the lock body base, the device can automatically compensate for the gap caused by the difference in specifications between the new and old lock bodies and form a three-dimensional anchor. This makes the lock body and the door body form a tightly intertwined whole structure, eliminating the safety hazards caused by the original installation gap, and giving the door lock excellent impact resistance and energy dissipation capabilities. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;
[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;
[0019] Figure 4 This is a schematic diagram of the auxiliary positioning component structure of this utility model;
[0020] Figure 5 for Figure 4 Enlarged structural diagram at point B;
[0021] Figure 6 This is a schematic diagram of the deformable component structure of this utility model.
[0022] In the diagram: 1. Front panel; 2. Mounting hole; 3. Limit frame; 4. Lock body;
[0023] 5. Auxiliary positioning component; 51. Snap-fit seat; 52. Slide rod; 53. Rod head; 54. Retaining ring; 55. Return spring; 56. Fixed shaft; 57. Torsion spring; 58. Rotating plate; 59. Inter-plate hole;
[0024] 6. Deformable assembly; 61. Fixed threaded short tube; 62. First connecting rod; 63. Connecting block; 64. Second connecting rod; 65. Sliding threaded long tube; 66. Conical block; 7. Friction groove; 8. Frame; Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0027] Please see Figures 1-6 This utility model provides a technical solution:
[0028] A quick-assembly door lock cylinder includes a front plate 1 and mounting holes 2. A lock body 4 is welded and fixed to one side of the front plate 1. Auxiliary positioning components 5 are engaged at the upper and lower ends of the lock body 4. A deformable component 6 is fixedly connected to one side of the front plate 1. The auxiliary positioning component 5 includes a locking seat 51. A slide rod 52 is slidably connected to the inner side of the locking seat 51. A rod head 53 is welded to one end of the slide rod 52. A fixing ring 54 is fixedly connected through the slide rod 52. A return spring 55 is sleeved on the outer side of the slide rod 52. A fixing ring 54 is fixedly installed through the inner side of the fixing ring 54. There is a fixed shaft 56, a torsion spring 57 is sleeved on the outside of the fixed shaft 56, a rotating plate 58 is rotatably connected to the outside of the fixed shaft 56, and an inter-plate hole 59 is opened on the inside of the rotating plate 58. The deformable component 6 includes a fixed threaded short tube 61, a first connecting rod 62 is hinged to one side of the fixed threaded short tube 61, a connecting block 63 is hinged to one end of the first connecting rod 62, a second connecting rod 64 is hinged to one side of the connecting block 63, a sliding threaded long tube 65 is hinged to one end of the second connecting rod 64, and a conical block 66 is fixedly connected to the inside of the connecting block 63.
[0029] As a further implementation of this solution, the front panel 1 has two mounting holes 2 on one side, and a limiting frame 3 is fixedly connected to the outside of the front panel 1. A friction groove 7 is provided on one side of the limiting frame 3, and a retaining frame 8 is welded to one side of the limiting frame 3. The projection of the limiting frame 3 in the vertical direction is "T" shaped, and the vertical cross-section of the retaining frame 8 is triangular. The friction groove 7 is opened around the outside of the retaining frame 8. The front panel 1 is fixed through the two mounting holes 2, which can achieve precise positioning and avoid stress concentration at a single point. The special shape of the retaining frame 8 can convert its lateral displacement into vertical pressure on the door panel, thereby increasing the biting force between the limiting frame 3 and the door panel. The surrounding layout of the friction groove 7 increases the friction between the limiting frame 3 and the door panel contact surface, which can prevent the parts from loosening when the door panel shakes.
[0030] As a further implementation of this solution, the side of the latching seat 51 away from the front panel 1 is arc-shaped, and the projection of the slide rod 52 in the vertical direction is "I"-shaped. The central axis of the rod head 53 and the central axis of the slide rod 52 are on the same straight line. The two ends of the return spring 55 are fixedly connected to the latching seat 51 and the fixing ring 54 respectively. The arc-shaped design of the latching seat 51 provides a certain guiding function when it is inserted into the slot of the door panel as the lock body 4 is inserted. The shape design of the slide rod 52 can prevent itself from coming out of the latching seat 51 and strengthen the support force of its two ends on the other parts, thereby improving the structural strength of the device components. The coaxial design of the rod head 53 and the slide rod 52 can avoid eccentric force between them, so that when it is squeezed, it can better receive the reaction force of the slide rod 52 and thus get stuck in the door body. The setting of the return spring 55 can help the components to quickly return to their original position when the device is removed from the door panel.
[0031] As a further implementation of this scheme, two torsion springs 57 are provided, symmetrically arranged on both sides of the rotating plate 58. The two ends of the torsion springs 57 are fixedly connected to the rotating plate 58 and the fixed shaft 56, respectively. The rotating plate 58 is located between the fixed threaded short tube 61 and the sliding threaded long tube 65. The width of the plate hole 59 is equal to the inner diameter of the fixed threaded short tube 61, and the length of the plate hole 59 is twice the inner diameter of the fixed threaded short tube 61. The two torsion springs 57 are symmetrically distributed on both sides of the rotating plate 58. With their fixed connection to the rotating plate 58 and the fixed shaft 56, force balance and controllable reset can be achieved, while also ensuring that the rotating plate 58 is subjected to balanced force during rotation. The size of the plate hole 59 ensures that even if the rotating plate 58 is tilted and deviates, it can still be aligned with the fixed threaded short tube 61.
[0032] As a further implementation of this solution, the central axis of the fixed threaded short tube 61 and the central axis of the sliding threaded long tube 65 are on the same straight line. The fixed threaded short tube 61 is connected to the inner side of the mounting hole 2. A portion of the sliding threaded long tube 65 is slidably disposed in the snap-fit seat 51. The end of the sliding threaded long tube 65 near the fixed threaded short tube 61 abuts against the rotating plate 58. Two first connecting rods 62 are provided, symmetrically distributed on both sides of the fixed threaded short tube 61. The positions of the connecting block 63 and the second connecting rod 64 correspond one-to-one with the positions of the first connecting rods 62. A portion of the tapered block 66 protrudes outside the connecting block 63. The design of the fixed threaded short tube 61 being connected to the inner side of the mounting hole 2 and coaxial with the sliding threaded long tube 65 ensures that when external bolts and fasteners are connected through the mounting hole 2, they can be precisely aligned with the threads of the fixed threaded short tube 61 and the sliding threaded long tube 65, avoiding misalignment due to shaft... To address the issue of the sliding threaded tube 65 being unable to be screwed in due to line deviation, a portion of the sliding threaded tube 65 is designed to slide within the locking seat 51. This design helps maintain the stability of the sliding threaded tube 65 and provides it with a certain amount of expansion and contraction space. As the sliding threaded tube 65 approaches the fixed threaded tube 61, the rotating plate 58 remains in contact with it. This ensures that the sliding threaded tube 65 eventually clamps the rotating plate 58 together with the fixed threaded tube 61. Two first connecting rods 62 are symmetrically distributed on both sides of the fixed threaded tube 61, and the connecting block 63 and the second connecting rod 64 correspond one-to-one with the first connecting rod 62, forming a "dual-sided synchronous drive" structure. This, combined with the conical block 66 protruding from the connecting block 63, locks the door panel. Compared to single-sided locking, dual-sided locking more effectively prevents the lock body 4 from loosening within the door panel, enhancing the anti-loosening effect.
[0033] Workflow: During installation, after removing the original lock from the outside of the door, insert the device back into the groove on the door. The arc-shaped design on one side of the slide bar 52 provides some guidance when inserting the device into the groove. After insertion, confirm that the bevel direction of the upper latch of the lock body 4 is correct to ensure that the latch can retract smoothly when the door is closed. Then, use two long screws to pass through the two mounting holes 2 in the front plate 1 and screw them into the fixing threaded short tube 61. As the screws go deeper, the bolts will pass through the inter-plate hole 59 in the rotating plate 58 and then be screwed into the sliding threaded long tube 65. After passing through the sliding threaded long tube 65 and the slide bar 52, the bolts will be screwed out from one side of the slide bar 52 and into the door body. Simultaneously, the rod head 53 fixed at one end of the slide rod 52 will also penetrate into the door body and be subjected to the reaction force generated by the door body, thereby pushing the slide rod 52 to slide in the locking seat 51. When the slide rod 52 slides, it will drive the fixed ring 54 to move. When the fixed ring 54 moves, it will drive the rotating plate 58 to move through the fixed shaft 56 and gradually move away from the slide rod 52. The setting of the torsion spring 57 ensures that the rotating plate 58 is always subjected to a steering force towards the slide rod 52 when it moves. This ensures that when the screw is gradually tightened, as the sliding threaded long tube 65 approaches the fixed threaded short tube 61, the rotating plate 58 can always be in contact with the sliding threaded long tube 65 until the sliding threaded long tube 65 and the fixed threaded short tube 61 are in contact. 1. When clamped, the auxiliary positioning component 5 and the deformation component 6 form a whole, working together with the lock body 4 to support the front plate 1. During the process of the rotating plate 58 being clamped by the sliding threaded long tube 65 and the fixed threaded short tube 61, one end of the fixed threaded short tube 61 will penetrate into the door body to enhance the overall stability of the device. At the same time, the resistance encountered by the fixed threaded short tube 61 when penetrating the door body will push the fixed shaft 56 in turn, causing the fixed shaft 56 to drive the rod head 53 to penetrate deeper into the door body through the fixed ring 54 and the sliding rod 52. When the sliding threaded long tube 65 approaches the fixed threaded short tube 61, the first connecting rod 62 and the second connecting rod 64 rotate in coordination, causing the connecting block 63 to move, so that the connecting block 6 3. After being opened, it contacts the door body, allowing the conical block 66 to penetrate into the door body. This ensures that the device is fixed to the door body in all directions, preventing the situation where the lock body groove on the door is too large after the old lock is removed, resulting in a gap between the new lock and the groove, which would not effectively distribute the impact force to the entire door leaf. This strengthens the installation stability and also prevents the device from shaking in the door body, causing damage to the door body or falling off itself. The setting of the limiting frame 3 allows it to drive the fixed card frame 8 on one side to squeeze into the door panel when it follows the front panel 1 to fit with the door panel. The friction groove 7 on one side of the limiting frame 3 increases the friction between the limiting frame 3 and the door panel, further strengthening the stabilizing effect on the front panel 1.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-assembly door lock cylinder lock, comprising a front plate (1) and mounting holes (2), characterized in that: A lock body (4) is welded and fixed to one side of the front plate (1), and auxiliary positioning components (5) are provided at the upper and lower ends of the lock body (4). A deformation component (6) is fixedly connected to one side of the front plate (1). The auxiliary positioning component (5) includes a locking seat (51), a sliding rod (52) is slidably connected to the inner side of the locking seat (51), a rod head (53) is welded to one end of the sliding rod (52), a fixing ring (54) is fixedly connected through the sliding rod (52), a return spring (55) is sleeved on the outer side of the sliding rod (52), a fixing shaft (56) is fixedly installed through the inner side of the fixing ring (54), a torsion spring (57) is sleeved on the outer side of the fixing shaft (56), a rotating plate (58) is rotatably connected to the outer side of the fixing shaft (56), and an inter-plate hole (59) is opened on the inner side of the rotating plate (58); The deformable component (6) includes a fixed threaded short tube (61), a first connecting rod (62) is hinged to one side of the fixed threaded short tube (61), a connecting block (63) is hinged to one end of the first connecting rod (62), a second connecting rod (64) is hinged to one side of the connecting block (63), a sliding threaded long tube (65) is hinged to one end of the second connecting rod (64), and a conical block (66) is fixedly connected to the inner side of the connecting block (63).
2. The quick-assembly door lock cylinder lock according to claim 1, characterized in that: The front plate (1) has two mounting holes (2) on one side, and a limiting frame (3) is fixedly connected to the outside of the front plate (1). A friction groove (7) is provided on one side of the limiting frame (3), and a card frame (8) is welded to one side of the limiting frame (3).
3. A quick-assembly door lock cylinder lock according to claim 2, characterized in that: The projection of the limiting frame (3) in the vertical direction is "T" shaped, the vertical cross-section of the card frame (8) is triangular, and the friction groove (7) is opened around the outside of the card frame (8).
4. A quick-assembly door lock cylinder lock according to claim 1, characterized in that: The side of the latch (51) away from the front plate (1) is arc-shaped. The projection of the slide rod (52) in the vertical direction is "I" shaped. The central axis of the rod head (53) and the central axis of the slide rod (52) are on the same straight line. The two ends of the return spring (55) are respectively fixedly connected to the fixing ring (54) and the latch (51).
5. A quick-assembly door lock cylinder lock according to claim 1, characterized in that: Two torsion springs (57) are provided, and the two torsion springs (57) are symmetrically arranged on both sides of the rotating plate (58). The rotating plate (58) and the fixed shaft (56) are fixedly connected to the two ends of the torsion springs (57). The rotating plate (58) is arranged between the fixed threaded short tube (61) and the sliding threaded long tube (65). The width of the plate hole (59) is equal to the inner diameter of the fixed threaded short tube (61), and the length of the plate hole (59) is twice the inner diameter of the fixed threaded short tube (61).
6. A quick-assembly door lock cylinder lock according to claim 1, characterized in that: The central axis of the fixed threaded short tube (61) and the central axis of the sliding threaded long tube (65) are on the same straight line. The fixed threaded short tube (61) is connected to the inner side of the mounting hole (2). A part of the sliding threaded long tube (65) is slidably disposed in the snap-fit seat (51). The end of the sliding threaded long tube (65) near the fixed threaded short tube (61) abuts against the rotating plate (58).
7. A quick-assembly door lock cylinder lock according to claim 1, characterized in that: There are two first connecting rods (62), which are symmetrically distributed on both sides of the fixed threaded short pipe (61). The positions of the connecting block (63) and the second connecting rod (64) correspond one-to-one with the positions of the first connecting rods (62). A portion of the conical block (66) protrudes out from the outside of the connecting block (63).