Anti-theft lock cylinder

Abstract

The utility model relates to the technical field of industrial cabinet locks, and discloses an anti-theft lock cylinder which comprises a lock bolt, an anti-fixing strip is connected to the interior of the lock bolt in a clamped mode, a first positioning groove is formed in the lock bolt, a return spring is installed in the first positioning groove, a clamping block is movably connected to the lower portion of the return spring, and a clamping groove is formed in the lower portion of the clamping block. A second positioning groove is formed in the anti-fixing strip, a pure copper lock cylinder is connected to the interior of the lock bolt in a clamped mode, an inserting hole is formed in the pure copper lock cylinder, an inner tooth blade is movably connected to the interior of the inserting hole, and a pulling head is connected to one side of the pure copper lock cylinder through a bolt. According to the anti-theft lock bolt, the anti-fixing strip is installed in the lock bolt, so that the lock bolt is firmer, meanwhile, the lock bolt is thicker than a common lock bolt, and the lock bolt is not prone to being pried open through a screw outside. The second positioning groove is formed in the anti-fixing strip, the clamping block can move upwards conveniently, the two pure copper lock cylinders are arranged in the lock bolt, the lock can be opened in two directions, and the use safety of the cabinet is improved.

Description

Technical Field

[0001] This utility model relates to the field of industrial cabinet lock technology, and in particular to an anti-theft lock cylinder. Background Technology

[0002] Industrial stainless steel cabinet locks are locks used on industrial cabinets, storage cabinets, filing cabinets, and other similar equipment. Their main functions include: 1. Protecting property: Industrial cabinets are typically used to store important tools, equipment, documents, and other valuables. The lock ensures the safety of these items. By locking the cabinet door, only authorized personnel can open it, preventing unauthorized intrusion. 2. Protecting privacy: Some industrial cabinets may contain confidential documents or sensitive information. The lock protects this private information from unauthorized viewing or disclosure. 3. Improving management efficiency: Industrial cabinets are commonly used to store various tools, equipment, and other items. The lock ensures the orderly management of these items. Only authorized personnel can open the cabinet door, preventing disorderly stacking or misuse of items. 4. Preventing accidental injury: Some industrial cabinets may contain hazardous materials or flammable materials. The lock prevents unauthorized personnel from accessing these hazardous materials, reducing the risk of accidental injury. In short, industrial stainless steel cabinet locks protect property, protect privacy, improve management efficiency, and prevent accidental injury. They are an important component of industrial cabinets, providing safety and protection for the industrial environment.

[0003] The existing industrial cabinet lock cylinder has a very thin bolt on the outside, which can be pried open and damaged with a screw, and the internal locking block is small in height, making it easy to push up with a wire or lock pick to open the lock.

[0004] Therefore, those skilled in the art have provided an anti-theft lock cylinder to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an anti-theft lock cylinder that increases the thickness of the bolt to prevent it from being pried open and increases the height of the locking block to prevent it from being opened by a lock pick.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-theft lock cylinder, including a bolt, an anti-locking strip is engaged with the bolt, a first positioning groove is provided inside the bolt, a return spring is installed inside the first positioning groove, a locking block is movably connected below the return spring, and a second positioning groove is provided inside the anti-locking strip.

[0007] The bolt is internally engaged with a pure copper lock cylinder, which has an insertion hole. An internal thread blade is movably connected inside the insertion hole. A puller is bolted to one side of the pure copper lock cylinder. An M4 screw is installed above the bolt. A third positioning groove is provided above the pure copper lock cylinder.

[0008] Furthermore, the first positioning groove is symmetrically formed inside the bolt, and the second positioning groove is symmetrically formed inside the anti-locking strip, which facilitates the return spring fixing. The locking block is slidably connected in the first positioning groove and the second positioning groove, making the bolt more secure.

[0009] Furthermore, the four return springs are vertically installed inside the first positioning groove. The locking block slides in the first, second, and third positioning grooves via the return springs. When the key is inserted into the pure copper lock cylinder on the bolt, the key is rotated, which compresses the spring at the rear end of the internal tooth blade, causing the upper locking block 5 to move upward into the first positioning groove 3 and the fourth positioning groove 13.

[0010] Furthermore, the pure copper lock cylinders are symmetrically installed inside the bolt, and the mortises are equidistantly located on the left and right sides of the pure copper lock cylinders. The installation of two symmetrical pure copper lock cylinders inside the bolt allows the industrial cabinet door to be opened from both sides, improving the usability of the cabinet door.

[0011] Furthermore, the rear end of the internal tooth blade is provided with a leaf spring, and the two pull heads are respectively connected to the pure copper lock cylinders on both sides. When the key is inserted into the pure copper lock cylinder on the bolt and the key is rotated, the pull heads will rotate accordingly to unlock the lock.

[0012] Furthermore, the M4 screw is installed vertically above the bolt, and a fourth positioning groove is provided below the first positioning groove. The M4 screw fixes the bolt to the anti-locking strip, making installation more convenient.

[0013] Furthermore, the anti-locking strip is locked in the fourth positioning groove. The first positioning groove, the second positioning groove, and the third positioning groove have the same length and width, which facilitates the movement of the locking block within the groove.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model proposes an anti-theft lock cylinder that makes the bolt more robust by installing a retaining strip inside the bolt. The bolt is also thicker than usual, making it difficult to pry open from the outside with screws. The increased height of the locking block effectively prevents someone from using a wire or lock pick to lift the locking block, thus avoiding theft.

[0016] 2. The anti-theft lock cylinder proposed in this utility model has a second positioning groove inside the anti-fixing strip, which facilitates the upward movement of the locking block. In addition, the bolt has two pure copper lock cylinders inside, which can open the lock in both directions, thus improving the security of the cabinet. Attached Figure Description

[0017] Figure 1 This is a three-dimensional sectional view of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the interaction between the internal tooth blade and the locking block of this utility model;

[0020] Figure 4 This is a schematic diagram of the anti-slip strip structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure in which the first positioning groove and the second positioning groove of this utility model cooperate with each other.

[0022] Legend:

[0023] 1. Bolt; 2. Anti-locking strip; 3. First positioning groove; 4. Return spring; 5. Locking block; 6. Second positioning groove; 7. Pure copper lock cylinder; 8. Insertion hole; 9. Internal thread blade; 10. Pulling head; 11. M4 screw; 12. Third positioning groove; 13. Fourth positioning groove. 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. 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.

[0025] Reference Figure 1 , Figure 4 and Figure 5 The present invention provides an embodiment of an anti-theft lock cylinder, comprising a bolt 1, an anti-locking strip 2 internally engaged with the bolt 1, a first positioning groove 3 internally formed in the bolt 1, a return spring 4 internally installed in the first positioning groove 3, a locking block 5 movably connected below the return spring 4, a second positioning groove 6 internally formed in the anti-locking strip 2, a pure copper lock cylinder 7 internally engaged with the bolt 1, and a third positioning groove 12 externally formed above the pure copper lock cylinder 7.

[0026] Specifically, the first positioning groove 3 is symmetrically opened inside the bolt 1 to facilitate the installation of the return spring 4. The second positioning groove 6 is symmetrically opened inside the anti-locking strip 2 to facilitate the installation of the locking block 5. The four return springs 4 are vertically installed inside the first positioning groove 3. The locking block 5 slides in the first positioning groove 3, the second positioning groove 6 and the third positioning groove 12 through the return springs 4. The anti-locking strip 2 is locked in the fourth positioning groove 13. The length and width of the first positioning groove 3, the second positioning groove 6 and the third positioning groove 12 are the same. The height of the locking block 5 is increased to effectively prevent someone from using a wire or lock pick to lift the locking block 5 and avoid theft. Through the return spring 4 installed inside the first positioning groove 3, after the key is pulled out, the locking block 5 returns to its original position through the return spring 4, locking the pure copper lock cylinder 7.

[0027] Reference Figure 1 , Figure 2 and Figure 3 The pure copper lock cylinder 7 has an insertion hole 8 inside, and an internal thread blade 9 is movably connected inside the insertion hole 8. A pull head 10 is bolted to one side of the pure copper lock cylinder 7, and an M4 screw 11 is installed above the bolt 1.

[0028] Specifically, the pure copper lock cylinder 7 is symmetrically installed inside the bolt 1, allowing the cabinet door to be opened from both the front and back sides, increasing the usability of the cabinet lock. The mortise holes 8 are equidistantly located on the left and right sides of the pure copper lock cylinder 7. The rear end of the internal tooth blade 9 is equipped with a leaf spring. Two pull heads 10 are connected to the pure copper lock cylinders 7 on both sides respectively. When the key is inserted into the pure copper lock cylinder 7 on the bolt 1 and the key is rotated, the spring at the rear end of the internal tooth blade 9 is squeezed, causing the upper locking block 5 to move upward into the first positioning groove 3 and the fourth positioning groove 13. At this time, rotating the key will also rotate the pull head 10 to unlock the lock. The M4 screw 11 is vertically installed above the bolt 1, fixing the bolt 1 to the pure copper lock cylinder 7. The fourth positioning groove 13 is located below the first positioning groove 3, which facilitates the installation and fixing of the anti-locking strip 2.

[0029] Working principle: Install a return spring 4 in the first positioning groove 3 of the bolt 1, install a retaining strip 2 inside the fourth positioning groove 13, then install a pure copper lock cylinder 7 with internal tooth blades 9 into the bolt 1, and then install an M4 screw 11 vertically above the bolt 1.

[0030] When in use, insert the key into the pure copper lock cylinder 7 on the bolt 1, rotate the key to compress the spring at the rear end of the inner tooth blade 9, so that the upper locking block 5 moves upward into the first positioning groove 3 and the fourth positioning groove 13. At this time, rotate the key, and the pull head 10 will also rotate to unlock.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-theft lock cylinder, comprising a bolt (1), characterized in that: The bolt (1) is internally connected to a retaining strip (2), the bolt (1) has a first positioning groove (3) inside, a return spring (4) is installed inside the first positioning groove (3), a locking block (5) is movably connected below the return spring (4), and the retaining strip (2) has a second positioning groove (6) inside. The bolt (1) is internally engaged with a pure copper lock cylinder (7). The pure copper lock cylinder (7) has an insertion hole (8) inside. An internal toothed blade (9) is movably connected inside the insertion hole (8). A puller (10) is bolted to one side of the pure copper lock cylinder (7). An M4 screw (11) is installed above the bolt (1). A third positioning groove (12) is opened above the pure copper lock cylinder (7).

2. The anti-theft lock cylinder according to claim 1, characterized in that: The first positioning groove (3) is symmetrically opened inside the bolt (1), and the second positioning groove (6) is symmetrically opened inside the anti-locking strip (2).

3. The anti-theft lock cylinder according to claim 2, characterized in that: The four return springs (4) are vertically installed inside the first positioning groove (3), and the locking block (5) slides in the first positioning groove (3), the second positioning groove (6) and the third positioning groove (12) through the return springs (4).

4. The anti-theft lock cylinder according to claim 3, characterized in that: The pure copper lock cylinder (7) is symmetrically installed inside the bolt (1), and the mortise holes (8) are equidistantly located on the left and right sides of the pure copper lock cylinder (7).

5. The anti-theft lock cylinder according to claim 4, characterized in that: The rear end of the inner tooth blade (9) is provided with a blade spring, and the two pull heads (10) are respectively connected to the pure copper lock cores (7) on both sides.

6. The anti-theft lock cylinder according to claim 5, characterized in that: The M4 screw (11) is installed vertically above the bolt (1), and a fourth positioning groove (13) is provided below the first positioning groove (3).

7. The anti-theft lock cylinder according to claim 6, characterized in that: The anti-locking strip (2) is engaged and fixed in the fourth positioning groove (13). The first positioning groove (3), the second positioning groove (6), and the third positioning groove (12) have the same length and width.

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