Cabinet lock with multiple lock structures and low-voltage complete equipment

Abstract

The utility model discloses a cabinet lock with multiple lock structures and low-voltage complete equipment. The utility model belongs to the technical field of locks. The lock comprises a hollow body, a lock cylinder, a lock pin and a matched lock body, a first through lock hole is formed in the lower portion of the body, the lock cylinder is rotatably arranged in the body, a second lock hole is formed in the lower portion of the lock cylinder, and the coincidence area of the two lock holes is controlled by rotating the lock cylinder. The lock pin is in interference fit with the lock cylinder connecting part through the polygonal hole, the bottom protruding block is embedded into the 90-degree fan-shaped adjusting groove in the top of the body, and precise limiting of the rotation angle is achieved. In a locking state, the coincidence degree of the two lock holes is larger than 95%, and the lock body can be arranged in a double-penetrating mode. During unlocking, the lock cylinder is rotated by 90 degrees, the two lock holes are staggered, and the lock body is separated. The safety is improved through the design of the double lock holes, and the stability is enhanced by combining polygonal transmission and limiting of the adjusting grooves.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lockset, concretely relates to a cabinet lockset with multiple lock structure, low pressure complete equipment. BACKGROUND

[0002] The traditional cabinet lockset has significant defects in safety, structural stability and environmental adaptability. In the prior art, most locksets adopt single lock hole design and rely on a single lock body for protection, which is easy to be pried or cut, and the safety is insufficient. Although some locksets add anti-prying structures, they lack angle limiting mechanisms, and the lock core is easy to be damaged due to excessive rotation, which shortens the service life. In addition, the transmission structure of the lock core and the lock pin is usually circular, which is easy to slip and affects the reliability of the opening and closing. The debugging and installation process is also relatively complicated, for example, the screw rod needs to be adjusted repeatedly to align the lock hole, which is time-consuming and prone to errors.

[0003] For scenes such as low-voltage complete equipment that require high safety protection, the existing lockset cannot meet the management requirements such as "two people and double locks", and lacks modular design, which has poor adaptability. Therefore, there is an urgent need for a cabinet lockset with double locking, precise limiting, high durability and easy installation to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] (I) Technical problem to be solved

[0005] To solve the above problems, the utility model provides a cabinet lockset with multiple lock structure, low pressure complete equipment, which aims to solve the problem that the existing lockset cannot meet the management requirements such as "two people and double locks" in the existing technology for scenes such as low-voltage complete equipment that require high safety protection, and lacks modular design, which has poor adaptability.

[0006] (II) Technical scheme

[0007] The utility model relates to a cabinet lockset with multiple lock structure, which comprises:

[0008] A main body, which is a hollow structure, and a first lock hole is provided through the lower part of the main body;

[0009] A lock core with a key hole at one end and a connecting part connected with the lock pin at the other end, the lock core is rotatably arranged in the main body, the lower part of the lock core is provided with a second lock hole coinciding with the lock hole, and the overlapping area of the first lock hole and the second lock hole can be controlled by rotating the lock core;

[0010] A lock pin arranged at one end of the lock core and driven to act by rotating the lock core;

[0011] When the first lock hole coincides with the second lock hole, a lock body can be added to pass through the first lock hole and the second lock hole for double locking.

[0012] In the utility model, the top of the main body further has an adjusting groove, the bottom of the lock pin is equipped with a protruding block matched with the adjusting groove, and the adjusting groove is used for limiting the rotation angle of the lock core.

[0013] In the utility model, the adjusting groove is a fan-shaped structure, and the included angle is 90°.

[0014] In the utility model, the upper part of the main body is further equipped with a connecting thread and a nut, which are used for mounting the main body on the door of a cabinet or a box.

[0015] In the utility model, the lock pin is equipped with a polygonal hole, the connecting part is a polygonal column structure, the polygonal hole and the connecting part are of the same shape, and the lock pin is sleeved on the connecting part and connected through a fastener.

[0016] In the utility model, the cabinet lock with the multiple lock structure has a locking state and an opening state, the lock pin is parallel to the ground in the locking state, and the coincidence degree of the first lock hole and the second lock hole is greater than 95%, and the lock pin is perpendicular to the ground in the opening state, and the coincidence degree of the first lock hole and the second lock hole is less than 10%.

[0017] In the utility model, the lock body is one of a padlock, a password lock, a draw lock, a steel cable lock, a spring lock and a magnetic lock.

[0018] In the utility model, the cabinet lock with the multiple lock structure is made of stainless steel.

[0019] Another low-voltage complete equipment provided by the utility model has the characteristics that the low-voltage complete equipment is provided with a door body and the cabinet lock with the multiple lock structure in any one of the above technical solutions, and the first lock hole and the second lock hole are located outside the door body.

[0020] (Three) beneficial effects

[0021] Compared with the prior art, the utility model has the beneficial effects that:

[0022] (1) The double lock hole design in the utility model significantly improves safety, and two lock bodies need to be damaged at the same time to illegally open.

[0023] (3) The cooperation of the polygonal connecting part and the lock pin in the utility model enhances the transmission stability and prevents slipping. DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0025] Figure 1 It is a schematic diagram of the overall structure of the lock;

[0026] Figure 2 It is a schematic diagram of the overall structure of the lock;

[0027] Figure 3 It is a schematic diagram of the overall structure of the lock;

[0028] Figure 4 It is a schematic diagram of the overall structure of the lock;

[0029] Figure 5 It is a schematic diagram of the overall structure of the lock.

[0030] 10, main body, 11, first lock hole, 12, adjusting groove, 13, connecting thread, 14, nut, 20, lock cylinder, 21, keyhole, 22, connecting part, 23, second lock hole, 30, lock pin, 31, polygonal hole, 33, protruding block, 40, padlock. DETAILED DESCRIPTION

[0031] Compared with the embodiments shown in the drawings, the feasible implementation solutions within the protection scope of the present disclosure can have fewer components, have other components not shown in the drawings, have different components, have components arranged differently, or have components connected differently, etc. In addition, two or more components in the drawings can be implemented in a single component, or a single component shown in the drawings can be implemented as a plurality of separate components.

[0032] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising,” “including,” or “having” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “connected” are not limited to the physical or mechanical connection or connection shown in the drawings, but may include equivalent connections or connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” “right,” “horizontal,” and “vertical” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0033] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] Example 1

[0035] like Figures 1-5 The cabinet lock shown features a multi-lock structure, significantly improving security and operational reliability through a dual-lock hole design, angle limiting mechanism, and stable transmission structure. The cabinet lock consists of a main body 10, a lock cylinder 20, a lock pin 30, and a matching lock body. In this embodiment, the lock body is a padlock 40. The main body 10 is a hollow columnar structure, cast from 316L stainless steel, with an outer diameter of 25mm and a wall thickness of 3mm. It has precision-machined guide grooves and limiting structures internally. A first lock hole 11, 12mm in diameter, is provided at the bottom of the main body 10 to accommodate the lock beam of the padlock 40 or a combination lock. A 90° fan-shaped adjustment groove 12, 5mm deep, is provided at the top of the main body 10. Its width precisely matches the protrusion 33 at the bottom of the lock pin 30, ensuring accurate limiting of the rotation angle. An M20×1.5 connecting thread 13 is provided on the upper outer wall of the main body 10. With the help of a lock nut 14, the lock can be fixed in the pre-drilled mounting hole on the cabinet door. Spring washers should be used during installation to prevent loosening due to long-term vibration.

[0036] The top of the main body 10 is provided with an adjusting groove 12, which is a fan-shaped structure with an included angle of 90°, used to limit the rotation angle of the lock cylinder 20. The upper part of the main body 10 is also provided with a connecting thread 13 and a matching nut 14, which can fix the main body 10 on the door of the cabinet or box through the thread.

[0037] The lock cylinder 20 is provided with a key hole 21 at one end and is connected with the lock pin 30 through the connecting part 22. The lock cylinder 20 is rotatably arranged in the main body 10, and the lower part is provided with a second lock hole 23. When the lock cylinder 20 rotates, the overlapping area of the second lock hole 23 and the first lock hole 11 of the main body 10 changes accordingly. The connecting part 22 is a polygonal column structure (such as hexagonal), and the end of the lock pin 30 is provided with a polygonal hole 31 matched with the shape of the connecting part 22. The lock pin 30 is sleeved on the connecting part 22 through the hole, and is fixed by a fastener (such as a screw), to ensure that the lock cylinder 20 and the lock pin 30 rotate synchronously.

[0038] The bottom of the lock pin 30 is provided with a protrusion 33, which is embedded in the adjusting groove 12 of the main body 10. When the lock cylinder 20 rotates, the protrusion 33 slides along the adjusting groove 12, and is limited by the 90° included angle of the fan-shaped groove. The maximum rotation angle of the lock cylinder 20 is 90°. The lock pin 30 has two states:

[0039] Locking state: the lock pin 30 is parallel to the ground, at this time the overlapping degree of the first lock hole 11 and the second lock hole 23 is more than 95%, allowing the lock body (such as a padlock or a password lock) to pass through the two holes to realize double locking;

[0040] Open state: the lock cylinder 20 rotates 90°, the lock pin 30 is perpendicular to the ground, the overlapping degree of the first lock hole 11 and the second lock hole 23 is less than 10%, the lock body cannot pass through, and the cabinet door can be opened.

[0041] The lock cylinder 20 is made of brass, and the surface is plated with nickel to improve corrosion resistance. One end is provided with a cross key hole 21, and the other end is a hexagonal connecting part 22 with a side length of 6mm, which is in interference fit with the hexagonal hole at the end of the lock pin 30, and is fixed by M4 internal hexagonal screw, to ensure that there is no gap in transmission. The lock cylinder 20 is internally provided with a drill pin and a ball structure, which meets the C-level lock cylinder 20 safety standard. The lower part of the lock cylinder 20 is provided with a second lock hole 23 with the same diameter as the first lock hole 11, and the position is offset with the rotation of the lock cylinder 20. The hole edge is chamfered to avoid scratching the surface when the lock body is inserted. The lock pin 30 is made of 304 stainless steel and is forged into a square structure with a length of 80mm and a cross section of 10mm×10mm. The surface is sandblasted to increase the friction. The end of the lock pin 30 is welded with a protrusion 33 with a size of 5mm×5mm×3mm, which is embedded in the adjusting groove 12 of the main body 10 to limit the rotation range of the lock cylinder 20 to 90°. The end is also provided with a pick-resistant groove, which cooperates with the buckle inside the cabinet door to enhance the anti-violence damage ability.

[0042] The lock supports a double locking mechanism. In the initial state, the lock pin 30 is parallel to the ground, the first lock hole 11 is completely aligned with the second lock hole 23, and the coincidence degree is ≥98%. The user locks the lock bar through the two holes to complete the locking, at this time the lock core 20 is in the 0° position, the protrusion 33 is located at the left end point of the adjusting groove 12, and the lock pin 30 cannot be rotated. When unlocking, insert the matching key and rotate it clockwise by 90°, the lock core 20 drives the lock pin 30 to rotate synchronously, the protrusion 33 slides along the adjusting groove 12 to the right end point, the second lock hole 23 is offset so that the coincidence degree of the two holes is reduced to below 5%, and the lock bar can be freely pulled out to open the cabinet door. After reversing the key, the two lock holes are re-aligned, and the lock body can be inserted and locked again. If the lock pin 30 is forcibly rotated without inserting the key, the interference fit between the hexagonal hole and the connecting part 22 will generate a resistance of up to 50 N·m, far exceeding the manual operation limit, effectively preventing forced entry. The 90° limiting design of the adjusting groove 12 avoids excessive rotation of the lock core 20, which can damage the internal pin structure and prolong the service life.

[0043] When installing, a Φ22mm through hole needs to be drilled in the predetermined position of the cabinet door, and the hole wall needs to be polished smooth. After the main body 10 passes through the cabinet door, it is fixed by tightening the nut 14 and spring washer with a torque of 15-20 N·m. When assembling the lock core 20 and the lock pin 30, the connecting part 22 and the hexagonal hole need to be aligned, and a small amount of lubricating grease is applied after testing the rotation smoothness. It is recommended to use a CEN IV level shear-resistant padlock 40 with a lock bar length ≥50mm, and the distance between the lock body and the cabinet door needs to be ≥3mm when locking to avoid friction loss. During the debugging stage, a Φ10mm standard pin is used to detect the coincidence degree of the double lock holes, and if the pin can pass freely without jamming, the calibration is complete. Regularly check the tightening state of the nut 14, and it is recommended to use a torque wrench to tighten it once every six months.

[0044] In terms of material selection, the main body 10 and the lock pin 30 are made of 316L stainless steel, which can withstand salt spray testing for up to 1000 hours without rust, making it suitable for high-humidity environments such as the ocean. The lock pin 30 has a tungsten carbide wear-resistant bushing embedded inside, reducing rotational friction and increasing service life to more than 100,000 times. The keyhole 21 of the lock core 20 is equipped with a magnetic dust cover, with an opening and closing force ≤2N, and the inside is coated with a graphene-based lubricating coating to reduce the operating resistance in low-temperature environments. The outer surface of the main body 10 is treated with a wire drawing process to improve aesthetics, and the lock pin 30 is treated with black nitriding to enhance concealment and anti-scratch performance.

[0045] The above-described embodiments are merely preferred embodiments of the present application and do not limit the design concept and scope of the present application. Various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design concept of the present application shall fall within the protection scope of the present application, and the technical content claimed by the present application has been fully recorded in the claims.

Claims

1. A cabinet lock with a multi-lock structure, characterized in that, The cabinet lock with a multi-lock structure includes: The main body is a hollow structure, and a through-hole is provided at the lower part of the main body; The lock cylinder has a keyhole at one end and a connecting part that connects to the lock pin at the other end. The lock cylinder is rotatably disposed in the main body. The lower part of the lock cylinder is provided with a second lock hole that overlaps with the first lock hole. Rotating the lock cylinder can control the overlapping area of ​​the first lock hole and the second lock hole. A locking pin is located at one end of the lock cylinder, and the locking pin can be moved by rotating the lock cylinder; When the first keyhole and the second keyhole coincide, a lock body can be added to pass through the first keyhole and the second keyhole for double locking.

2. The cabinet lock with a multiple locking structure according to claim 1, characterized in that, The top of the main body also has an adjustment groove, and the bottom of the locking pin is provided with a protrusion that cooperates with the adjustment groove. The adjustment groove is used to limit the rotation angle of the lock cylinder.

3. The cabinet lock with a multiple locking structure according to claim 2, characterized in that, The adjustment groove has a fan-shaped structure with an included angle of 90°.

4. The cabinet lock with a multiple-lock structure according to claim 2 or 3, characterized in that, The upper part of the main body is also provided with connecting threads and nuts for installing the main body on the door of the cabinet or box.

5. The cabinet lock with a multiple locking structure according to claim 4, characterized in that, The locking pin has a polygonal hole, and the connecting part is a polygonal columnar structure. The polygonal hole has the same shape as the connecting part, and the locking pin is sleeved on the connecting part and connected by fasteners.

6. The cabinet lock with a multiple locking structure according to claim 5, characterized in that, The cabinet lock with a multi-lock structure has a locked state and an open state. When it is in the locked state, the locking pin is parallel to the ground and the overlap between the first lock hole and the second lock hole is greater than 95%. When it is in the open state, the locking pin is perpendicular to the ground and the overlap between the first lock hole and the second lock hole is less than 10%.

7. The cabinet lock with a multiple locking structure according to claim 6, characterized in that, The lock body is one of the following: padlock, combination lock, drawer lock, cable lock, spring lock, or magnetic lock.

8. The cabinet lock with a multiple-lock structure according to claim 7, characterized in that, The cabinet lock with a multi-lock structure is made of stainless steel.

9. A low-voltage complete set of equipment, characterized in that, The low-voltage complete set of equipment has a door and a cabinet lock with a multi-lock structure as described in any one of claims 1-8, and the first lock hole and the second lock hole are located outside the door.

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