Anti-deviation security door lock pre-installed fixing frame

Abstract

The utility model discloses a kind of anti-deviation security door lock pre-installation fixing frame, belong to fixed support technical field, a kind of anti-deviation security door lock pre-installation fixing frame, including door body, lock body is inserted into in the door body, lock cylinder is slidably connected in the lock body, further include: limit block, to be fitted with the lateral wall of door body;Supporting block is equipped on the limit block, the clamping block of relative motion is connected on the supporting block, the clamping block is clamped and limited to lock body;Limiting insertion rod is slidably connected on the supporting block, when the limiting insertion rod is inserted into lock body, the supporting block is limited to the central position of lock body;The utility model can be when installing lock body to lock body is fixed, ensure that lock body does not appear deviation skew condition when installing, and when inserting lock cylinder, automatically complete the positioning of lock cylinder, improve the efficiency of installing lock cylinder.

Description

Technical Field

[0001] This utility model relates to the field of fixed bracket technology, and in particular to a pre-installed fixed bracket for anti-displacement anti-theft door locks. Background Technology

[0002] Security door locks are the core line of defense for home and commercial security. They integrate anti-pry, anti-technical opening and convenient use. The main body is made of high-strength alloy materials, such as zinc alloy or stainless steel, which have excellent impact resistance and corrosion resistance and can resist violent damage. As the core component, the lock cylinder has been upgraded to a C-level blade lock cylinder. Through a complex pin tumbler structure and false groove design, the technical opening time is extended to more than 270 minutes, far exceeding the national standard.

[0003] During the installation and replacement of the lock body or lock cylinder of a security door, it is essential to ensure a high-precision and stable fit between the lock body and the door structure. If the lock body tilts or shifts axially during installation, it will directly lead to excessive concentricity between the lock body transmission mechanism and the handle assembly, resulting in mechanical failures such as handle jamming and increased operating torque. Based on this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a pre-installed fixing bracket for anti-displacement anti-theft door lock that can overcome or at least partially solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pre-installed fixing bracket for an anti-deviation security door lock includes a door body, a lock body inserted into the door body, a lock cylinder slidably connected to the lock body, and further includes: a limiting block for fitting against the side wall of the door body; a support block provided on the limiting block, a clamping block connected to the support block for relative movement, the clamping block clamping and limiting the lock body; a limiting rod slidably connected on the support block, when the limiting rod is inserted into the lock body, the support block is restricted to the central position of the lock body.

[0007] Preferably, a bidirectional threaded rod is rotatably connected to the support block, and sliding blocks are threadedly connected to both sides of the bidirectional threaded rod, with limiting sliding rods provided on the sliding blocks.

[0008] Furthermore, the sliding block is provided with a first sliding rod, and a synchronization block is slidably connected to the first sliding rod.

[0009] Furthermore, the synchronization block is provided with a second sliding rod, which is slidably connected to the clamping block, and the clamping block is provided with a clamping rod.

[0010] Preferably, the lock body has a plug hole, and the limiting plug is plugged into the plug hole.

[0011] Furthermore, the limiting rod is provided with a top block, and a tension spring is connected between the limiting rod and the support block.

[0012] Furthermore, the lock cylinder has an installation hole, and when the limiting rod passes through the insertion hole and is inserted into the installation hole, the lock cylinder is limited.

[0013] Preferably, a limiting sleeve is installed on the door body, and the limiting sleeve clamps and limits the lock cylinder.

[0014] Compared with the prior art, this utility model provides a pre-installed fixing bracket for anti-displacement anti-theft door locks, which has the following advantages:

[0015] 1. The anti-offset anti-theft door lock has a pre-installed fixing bracket. By setting support blocks, limit blocks, sliding blocks, synchronization blocks and clamping blocks, it can assist in fixing the lock body during installation, ensuring that the lock body will not be offset or tilted during installation.

[0016] 2. The anti-displacement anti-theft door lock has a pre-installed fixing bracket. By setting a limit rod, a top block and a tension spring, it can automatically position the lock cylinder when inserting it, which simplifies the steps for users to connect the mounting hole and the insertion hole and improves the efficiency of installing the lock cylinder.

[0017] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model can assist in fixing the lock body during installation, ensuring that the lock body will not shift or tilt during installation, and automatically completes the positioning of the lock cylinder when inserting the lock cylinder, thus improving the efficiency of lock cylinder installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the pre-installed fixing bracket for an anti-displacement anti-theft door lock proposed in this utility model;

[0019] Figure 2 This utility model proposes a pre-installed fixing bracket for an anti-displacement anti-theft door lock. Figure 1 Enlarged structural diagram of section A;

[0020] Figure 3 This is a schematic diagram of the sliding block portion in a pre-installed fixing frame for an anti-displacement anti-theft door lock proposed in this utility model;

[0021] Figure 4 This utility model proposes a pre-installed fixing bracket for an anti-displacement anti-theft door lock. Figure 3 Enlarged structural diagram of section B;

[0022] Figure 5 This is a schematic diagram of the lock body and lock cylinder in a pre-installed fixing frame for an anti-displacement anti-theft door lock proposed in this utility model.

[0023] In the diagram: 1. Door body; 2. Lock body; 21. Insertion hole; 3. Support block; 31. Limiting rod; 311. Top block; 312. Tension spring; 32. Limiting block; 33. Two-way threaded rod; 34. Sliding block; 341. First sliding rod; 342. Limiting sliding rod; 35. Synchronizing block; 351. Second sliding rod; 36. Clamping block; 361. Clamping rod; 4. Lock cylinder; 41. Mounting hole; 42. Limiting sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1: Refer to Figures 1-5 A pre-installed fixing bracket for an anti-displacement security door lock includes a door body 1, a lock body 2 inserted into the door body 1, a lock cylinder 4 slidably connected inside the lock body 2, and further includes: a limiting block 32 for fitting against the side wall of the door body 1; a support block 3 on the limiting block 32, a clamping block 36 connected to the support block 3 for relative movement, the clamping block 36 clamping and limiting the lock body 2; a limiting rod 31 slidably connected to the support block 3, when the limiting rod 31 is inserted into the lock body 2, the support block 3 is restricted to the central position of the lock body 2.

[0027] In this invention, when installing the lock body 2, it is usually necessary to ensure that the lock body 2 is perpendicular to the side wall of the door body 1 when inserted into the door body 1. If it is skewed, the matching between the door handle and the lock body 2 will be misaligned when the door handle is installed later. At best, the matching will be blocked. If the misalignment is too large, it will be difficult to drive the lock cylinder 4 to rotate, and the installation will need to be reinstalled. This device uses the limiting block 32 to abut against the edge of the door body 1, so that the lock body 2 can be squeezed into the mounting groove of the door body 1. At the same time, it can ensure that the limiting block 32 is flush with the side wall of the door body 1. Then, when the clamping blocks 36 on both sides move towards the middle to clamp the lock body 2, the lock body 2 can be in a state perpendicular to the limiting block 32, thus ensuring that the lock body 2 will not be offset or skewed during installation.

[0028] By setting the limiting rod 31 to be inserted into the lock body 2, it can be ensured that the limiting block 32 and the support block 3 are in the middle of the lock body 2, thereby ensuring that the clamping block 36 can clamp the lock body 2 to the middle position when performing relative displacement clamping. At the same time, the limiting rod 31 can also position the lock cylinder 4, thereby facilitating the user to install the lock cylinder 4.

[0029] Example 2: Refer to Figures 1-5 The embodiment is basically the same as in Example 1, but with a further improvement: a bidirectional threaded rod 33 is rotatably connected to the support block 3, and sliding blocks 34 are threadedly connected to both sides of the bidirectional threaded rod 33. A limiting sliding rod 342 is provided on the sliding block 34, and a first sliding rod 341 is provided on the sliding block 34. A synchronizing block 35 is slidably connected to the first sliding rod 341, and a second sliding rod 351 is provided on the synchronizing block 35. The second sliding rod 351 is slidably connected to the clamping block 36. The lock body 6 is provided with a clamping rod 361, and the lock body 2 is provided with a plug hole 21. The limiting plug rod 31 is inserted into the plug hole 21. The limiting plug rod 31 is provided with a top block 311. A tension spring 312 is connected between the limiting plug rod 31 and the support block 3. The lock cylinder 4 is provided with a mounting hole 41. When the limiting plug rod 31 passes through the plug hole 21 and is inserted into the mounting hole 41, the lock cylinder 4 is limited. The door body 1 is provided with a limiting sleeve 42, which clamps and limits the lock cylinder 4.

[0030] In this utility model, the support block 3 and the limiting block 32 are fixedly connected by a connecting rod. A limiting slide rod 342 is fixedly connected to each of the sliding blocks 34 on both sides, and the limiting slide rod 342 will slide in connection with the opposite sliding block 34. Both limiting slide rods 342 are fixedly connected to the support block 3, so as to limit the synchronization block 35, and then drive the sliding blocks 34 on both sides to move relative to each other by rotating the bidirectional threaded rod 33.

[0031] Synchronization block 35 is slidably connected to the first sliding rod 341, and clamping block 36 is slidably connected to the second sliding rod 351. The sliding connection between synchronization block 35 and clamping block 36 is an interference fit, which makes it convenient for users to adjust the clamping position of clamping block 36 according to different door models.

[0032] Preferably, the clamping surface of the clamping rod 361 is provided with a rubber clamping surface, which increases the friction between the clamping rod 361 and the door body 1 while also preventing damage to the lock body 2 during clamping;

[0033] The lock body 2 has a plug hole 21, and the lock cylinder 4 has a threaded mounting hole 41. When the lock cylinder 4 is inserted into the lock body 2, the user usually inserts a screw into the plug hole 21 and installs it onto the mounting hole 41 by thread, thereby fixing and limiting the lock cylinder 4. However, during installation, the user usually needs to align the mounting hole 41 with the plug hole 21. Because the mounting hole 41 is inside the lock body 2, the alignment can only be achieved by slowly moving and probing. In this device, the user can align the lock cylinder 4 by... When the lock cylinder 4 is inserted into the door body 1, the limiting rod 31 is pulled outward so that the lock cylinder 4 can be inserted into the door body 1. After the pulling of the limiting rod 31 is released, under the action of the tension spring 312, the limiting rod 31 will always be pressed against the surface of the lock cylinder 4 until the mounting hole 41 slides to the limiting rod 31. The limiting rod 31 is inserted into the mounting hole 41 to complete the limiting of the lock cylinder 4, thereby simplifying the steps for the user to connect the mounting hole 41 and the insertion hole 21 and improving the efficiency of installing the lock cylinder 4.

[0034] The limiting sleeve 42 is installed on the door body 1 to limit and fix the lock cylinder 4. After the limiting sleeve 42 is installed, the clamping and fixing of the door body 1 can be released, and then the lock cylinder 4 can be connected to the lock body 2 by screwing it into the mounting hole 41.

[0035] During installation, the user first inserts the lock body 2 into the door body 1, then inserts the limiting rod 31 into the insertion hole 21 and places the limiting block 32 against the side wall of the door body 1. The position of the clamping rod 361 is adjusted to align with the position of the door handle on the door body 1. The double-threaded rod 33 is rotated to clamp and fix the lock body 2. Screws can then be used to install and fix the lock body 2 to the door body 1. After installation, the user pulls the limiting rod 31 to insert the lock cylinder 4 into the lock body 2, then releases the pull on the limiting rod 31. As the lock cylinder 4 moves, the limiting rod 31 inserts into the mounting hole 41, completing the installation of the lock cylinder 4. The limiting sleeve 42 is then installed and fixed to secure the lock cylinder 4. After fixing, the clamping device can be removed and installed in the mounting hole 41 with screws. Finally, the door handle is installed, completing the installation of the entire lock body 2 and lock cylinder 4.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pre-installed fixing bracket for an anti-offset security door lock, comprising a door body (1), a lock body (2) inserted into the door body (1), and a lock cylinder (4) slidably connected within the lock body (2), characterized in that, Also includes: Limiting block (32) is used to fit against the side wall of the door (1); The limiting block (32) is provided with a support block (3), and a clamping block (36) that moves relative to the support block (3) is connected to the support block (3). The clamping block (36) clamps and limits the lock body (2). A limiting rod (31) is slidably connected to the support block (3). When the limiting rod (31) is inserted into the lock body (2), the support block (3) is restricted to the central position of the lock body (2).

2. The anti-displacement anti-theft door lock pre-installation fixing bracket according to claim 1, characterized in that, The support block (3) is rotatably connected to a bidirectional threaded rod (33), and sliding blocks (34) are threadedly connected to both sides of the bidirectional threaded rod (33). The sliding blocks (34) are provided with limiting slide rods (342).

3. The anti-displacement anti-theft door lock pre-installation fixing bracket according to claim 2, characterized in that, The sliding block (34) is provided with a first sliding rod (341), and a synchronization block (35) is slidably connected to the first sliding rod (341).

4. The anti-displacement anti-theft door lock pre-installation fixing bracket according to claim 3, characterized in that, The synchronization block (35) is provided with a second sliding rod (351), which is slidably connected to the clamping block (36), and the clamping block (36) is provided with a clamping rod (361).

5. The anti-displacement anti-theft door lock pre-installation fixing bracket according to claim 1, characterized in that, The lock body (2) has a plug hole (21) and the limiting plug rod (31) is inserted into the plug hole (21).

6. The anti-displacement anti-theft door lock pre-installation fixing bracket according to claim 5, characterized in that, The limiting rod (31) is provided with a top block (311), and a tension spring (312) is connected between the limiting rod (31) and the support block (3).

7. A pre-installed fixing bracket for an anti-displacement anti-theft door lock according to claim 6, characterized in that, The lock cylinder (4) has an installation hole (41). When the limiting rod (31) passes through the insertion hole (21) and is inserted into the installation hole (41), the lock cylinder (4) is limited.

8. The anti-displacement anti-theft door lock pre-installation fixing bracket according to claim 1, characterized in that, A limiting sleeve (42) is installed on the door body (1), and the limiting sleeve (42) clamps and limits the lock cylinder (4).

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