A square steel lock

Abstract

The utility model discloses a square steel lock, comprising: a lock body, a lock core accommodating cavity is formed inside the lock body; a lock core structure, the lock core structure is inserted and arranged in the lock core accommodating cavity, and the locking structure is shielded by an end cover; a hole position corresponding to the lock hole of the lock core structure is arranged on the end cover; a lock beam, one end of the lock beam is limitedly arranged in a spring hole on one side above the lock body, and a lock beam spring is arranged between the spring hole and the lock beam; the other end of the lock beam is placed on the locking end of the lock core structure, and the lock beam is locked by the lock core structure. The utility model makes the lock have a high key capacity through the cooperation of multiple pins of different lengths and multiple holes, and requires a highly matched key to unlock, which greatly improves the safety of the lock.

Description

Technical Field

[0001] The utility model relates to a steel lock, in particular to a square steel lock. Background Art

[0002] In traditional locks, the common key structure design is relatively simple, easy to be cracked, and has low security. At the same time, some locks have complex structural designs and are difficult to maintain. In addition, the performance of some locks in terms of anti-violent opening, anti-drilling, and anti-prying needs to be improved. Therefore, existing locks still have certain limitations in terms of security and durability. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a square steel lock.

[0004] The square steel lock of the utility model is realized by the following technical solutions, including:

[0005] A lock body, wherein a lock core accommodating cavity is formed inside the lock body;

[0006] A lock core structure, wherein the lock core structure is inserted into the lock core accommodating cavity and the locking structure is shielded by an end cover; the end cover is provided with a hole position corresponding to the lock hole of the lock core structure;

[0007] A lock beam, one end of which is limitedly arranged in a spring hole on one side above the lock body, and a lock beam spring is arranged between the spring hole and the lock beam; the other end of the lock beam is placed on the locking end of the lock core structure, and the lock beam is locked by the lock core structure.

[0008] As a preferred technical solution, the lock core structure includes a sleeve lock core sleeve, a sleeve lock core column and a sleeve lock core rear end sleeve;

[0009] A plurality of pins of different lengths are arranged around the side of the sleeve lock cylinder column, a plurality of upper beads are movably arranged on the rear end sleeve of the sleeve lock cylinder, and a pin spring is arranged between the upper beads and the rear end sleeve of the sleeve lock cylinder; when the sleeve lock cylinder column is inserted into the rear end sleeve of the sleeve lock cylinder, the positions of the upper beads and the pins correspond; the sleeve lock cylinder column and the rear end sleeve of the sleeve lock cylinder are inserted into the sleeve lock cylinder sleeve.

[0010] As a preferred technical solution, a connecting driver is installed above the rear end sleeve of the sleeve lock cylinder, and the connecting driver is in contact with the groove of the sleeve lock cylinder column; a positioning plate is arranged above the connecting driver, and the connecting driver is connected to the torsion column through the positioning plate; the torsion column corresponds to the other end of the lock beam.

[0011] As a preferred technical solution, a key structure is also included, and the key structure includes a sleeve key sleeve and a sleeve lock key handle;

[0012] The sleeve key sleeve is installed at the front end of the sleeve lock key handle, and the sleeve key sleeve passes through the hole of the end cover and contacts with the sleeve lock lock core column of the lock core structure.

[0013] As a preferred technical solution, the end cover and the lock core structure are fixed by means of a tightening screw and a tightening nut.

[0014] As a preferred technical solution, a positioning structure is provided on one side of the lock body, and the positioning structure includes a steel ball and a hole sealing sheet;

[0015] A mounting hole is arranged on one side of the lock body, and the mounting hole is communicated with the spring hole; the steel ball is placed in the mounting hole, and the hole sealing sheet is sealed at the end of the mounting hole.

[0016] As a preferred technical solution, the lock body is made of high-quality alloy steel.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model uses a plurality of pins of different lengths in combination with multiple holes to make the lock have a high key capacity and require a highly matched key to unlock, thereby greatly improving the security of the lock.

[0019] 2. The lock core structure of the utility model makes the lock core structure compact through the coordination of components, which is beneficial to improving the durability of the lock.

[0020] 3. The end cover and the lock core structure of the utility model are fixed by hanging screws and hanging nuts, so that the lock core structure can be disassembled and replaced, which is convenient for maintenance and replacement.

[0021] 4. The end cover of the utility model is made of high-quality heat-treated high-hardness steel, and shields the unlocking end of the lock core structure, and has good anti-violent opening, anti-drilling and anti-pry functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 3This is a schematic diagram of the key structure of the utility model.

[0026] Reference numerals

[0027] 1. Lock body; 2. Lock beam; 3. Torsion column; 4. Positioning plate; 5. Sleeve lock cylinder column; 6. Sleeve lock cylinder rear end sleeve; 7. Sleeve key sleeve; 8. Sleeve lock key handle; 9. Pin; 14. Pin spring; 15. Sleeve lock cylinder sleeve; 16. Lock cylinder sleeve locating pin; 17. Connecting driver; 18. End cover; 19. Tightening screw; 20. Tightening nut; 21. Lock beam spring; 22. Torsion spring; 23. Steel ball; 24. Hole sealing plate; 25. Upper bead. DETAILED DESCRIPTION

[0028] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0029] like Figure 1 — Figure 2 As shown, a square steel lock of the utility model comprises:

[0030] A lock body 1, wherein a lock core accommodating cavity is formed inside the lock body 1;

[0031] A lock core structure, the lock core structure is inserted into the lock core accommodating cavity, and the locking structure is shielded by an end cover 18; the end cover 18 is provided with a hole position corresponding to the lock hole of the lock core structure;

[0032] A lock beam 2, one end of which is limitedly set in a spring hole on one side above the lock body 1, and a lock beam spring 21 is set between the spring hole and the lock beam 2; the other end of the lock beam 2 is placed on the locking end of the lock core structure, and the lock beam 2 is locked by the lock core structure.

[0033] The lock core structure includes a sleeve lock core sleeve 15, a sleeve lock core column 5 and a sleeve lock core rear end sleeve 6;

[0034] The side of the sleeve lock cylinder 5 is surrounded by a plurality of pins 9 of different lengths, including ∮2x5.5 pins, ∮2x6.3 pins, ∮2x6.7 pins, ∮2x7.5 pins and ∮2x5.1 pins. Through the combination of a plurality of different pins with multiple holes, it has a high key capacity and requires a highly matched key to unlock. A plurality of upper beads 25 are movably arranged on the rear end sleeve 6 of the sleeve lock cylinder, and the upper beads 25 are A pin spring 14 is arranged between the bead 25 and the rear end sleeve 6 of the sleeve lock cylinder; when the sleeve lock cylinder column 5 is inserted into the rear end sleeve 6 of the sleeve lock cylinder, the upper bead 25 corresponds to the positions of the ∮2x5.5 pin, ∮2x6.3 pin, ∮2x6.7 pin, ∮2x7.5 pin and ∮2x5.1 pin; the sleeve lock cylinder column 5 and the rear end sleeve 6 of the sleeve lock cylinder are inserted and arranged in the sleeve lock cylinder sleeve 15.

[0035] In addition, a connecting driver 17 is installed above the rear end sleeve 6 of the sleeve lock cylinder, and the connecting driver 17 is in contact with the groove of the sleeve lock cylinder column 5; a positioning plate 4 is arranged above the connecting driver 17, and the connecting driver 17 is connected to the torsion column 3 through the positioning plate 4; the torsion column 3 corresponds to the other end of the lock beam 2.

[0036] like Figure 3 As shown, a key structure is also included, and the key structure includes a sleeve key sleeve 7 and a sleeve lock key handle 8;

[0037] The sleeve key sleeve 7 is installed at the front end of the sleeve lock key handle 8, and the sleeve key sleeve 7 passes through the hole of the end cover 18 and contacts the sleeve lock cylinder column 5 of the lock core structure.

[0038] The end cover 18 and the lock core structure are fixed by a tightening screw 19 and a tightening nut 20, so that the lock core structure can be disassembled and replaced.

[0039] In this embodiment, a positioning structure is provided on one side of the lock body 1, and the positioning structure includes a steel ball 23 and a hole sealing sheet 24;

[0040] A mounting hole is provided on one side of the lock body 1, and the mounting hole is communicated with the spring hole; the steel ball 23 is placed in the mounting hole, and the hole sealing sheet is sealed at the end of the mounting hole.

[0041] In addition, the lock body 1 is made of high-quality alloy steel, which makes it have higher hardness.

[0042] In addition, the end cover 18 is made of high-quality heat-treated high-hardness steel, so that it has the functions of preventing violent opening, drilling and prying.

[0043] The utility model makes the lock have a high key capacity through the cooperation of multiple pins of different lengths and multiple holes, and requires a highly matched key to unlock it, which greatly improves the security of the lock; the lock core structure makes the lock core structure compact through the cooperation of components, which is beneficial to improving the durability of the lock; the end cover and the lock core structure are fixed by tightening screws and tightening nuts, so that the lock core structure can be disassembled and replaced, which is convenient for maintenance and replacement; the end cover is made of high-quality heat-treated high-hardness steel, and the unlocking end of the lock core structure is blocked, which has good anti-violent opening, anti-drilling and anti-pry functions.

[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A square steel lock, characterized in that: include: A lock body (1), wherein a lock core accommodating cavity is formed inside the lock body (1); A lock core structure, the lock core structure is inserted into the lock core accommodating cavity, and the locking structure is shielded by an end cover (18); the end cover (18) is provided with a hole position corresponding to the lock hole of the lock core structure; A lock beam (2), one end of the lock beam (2) is limitedly arranged in a spring hole on one side above the lock body (1), and a lock beam spring (21) is arranged between the spring hole and the lock beam (2); the other end of the lock beam (2) is placed on the locking end of the lock core structure, and the lock beam (2) is locked by the lock core structure; The lock core structure comprises a sleeve lock core sleeve (15), a sleeve lock core column (5) and a sleeve lock core rear end sleeve (6); A plurality of pins (9) of different lengths are arranged around the side of the sleeve lock cylinder column (5), a plurality of upper beads (25) are movably arranged on the sleeve lock cylinder rear end sleeve (6), and a pin spring (14) is arranged between the upper beads (25) and the sleeve lock cylinder rear end sleeve (6); when the sleeve lock cylinder column (5) is inserted into the sleeve lock cylinder rear end sleeve (6), the positions of the upper beads (25) and the pins (9) correspond; the sleeve lock cylinder column (5) and the sleeve lock cylinder rear end sleeve (6) are inserted into the sleeve lock cylinder sleeve (15); A connecting driver (17) is installed above the rear end sleeve (6) of the sleeve lock cylinder, and the connecting driver (17) contacts the groove of the sleeve lock cylinder column (5); a positioning plate (4) is arranged above the connecting driver (17), and the connecting driver (17) is connected to the torsion column (3) through the positioning plate (4); the torsion column (3) corresponds to the other end of the lock beam (2).

2. The square steel lock according to claim 1, characterized in that: Also included is a key structure, the key structure comprising a sleeve key sleeve (7) and a sleeve lock key handle (8); The sleeve key sleeve (7) is installed at the front end of the sleeve lock key handle (8), and the sleeve key sleeve (7) passes through the hole of the end cover (18) and contacts the sleeve lock cylinder column (5) of the lock core structure.

3. The square steel lock according to claim 1, characterized in that: The end cover (18) and the lock core structure are fixed by means of a tightening screw (19) and a tightening nut (20).

4. The square steel lock according to claim 1, characterized in that: A positioning structure is provided on one side of the lock body (1), and the positioning structure comprises a steel ball (23) and a hole sealing sheet; A mounting hole is provided on one side of the lock body (1), and the mounting hole is communicated with the spring hole; the steel ball (23) is placed in the mounting hole, and the hole sealing sheet is sealed at the end of the mounting hole.

5. The square steel lock according to claim 1, characterized in that: The lock body (1) is made of high-quality alloy steel.

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