High-strength short-beam anti-sawing padlock

Abstract

The utility model discloses a high-strength short-beam anti-sawing padlock which comprises a lock body (1) and a lock beam (2), the lock beam (2) comprises a long rod section (21) and a short rod section (22), anti-sawing barrels (3) are arranged on the outer side of the long rod section (21) and the outer side of the short rod section (22) in a rotating mode, and steel wire anti-sawing nets (4) are arranged in the anti-sawing barrels (3). Bottom supports (5) are arranged at the bottoms of the two anti-sawing barrels (3), and the two bottom supports (5) are fixedly connected to the long rod section (21) and the short rod section (22) correspondingly; the top of the lock body (1) is fixedly connected with an anti-sawing block (6), and the outer side of the anti-sawing block (6) is in an arc shape. Through holes (7) are formed in the positions, corresponding to the two anti-sawing barrels (3), of the anti-sawing block (6), and the diameter of the two through holes (7) is larger than or equal to the outer diameter of the two anti-sawing barrels (3). The anti-sawing device not only can provide higher anti-sawing strength, but also has the advantages of better dustproof effect and better safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to padlock technical field, especially a kind of high-strength short beam sawing-resistant padlock. BACKGROUND

[0002] Padlock is the oldest lock, generally by lock body and lock beam composition. Since, the structural characteristics of padlock, make it flexible and convenient to use, and affordable, can be widely used in various occasions, it is the irreplaceable member in the family of lock. The existing padlock is similar to the sawing-resistant high-strength short beam padlock disclosed in ZL202011128005.4, which is screwed through the pin hole on the sawing-resistant seat by rotating locking bolt, and is screwed with the thread hole on the lock body, so that the sawing-resistant seat is fixed on the lock body, after locking the lock beam, the sawing-resistant seat will protect the lock beam, to reduce the phenomenon of the lock beam being sawed by external tools. However, this kind of padlock mainly protects the lock beam by the sawing-resistant seat around the lock beam, and the sawing-resistant seat is fixed on the lock body, and the side of the sawing-resistant seat is relatively flat, which makes the sawing-resistant seat itself more likely to have a force on the saw, so that it is sawed by force, and the sawing-resistant seat loses the sawing protection effect on the lock beam.

[0003] Therefore, the existing padlock has the problem of low sawing resistance. INVENTION CONTENTS

[0004] The utility model is aimed at providing a kind of high-strength short beam sawing-resistant padlock. The utility model has the advantages of higher sawing resistance.

[0005] The technical scheme of the utility model: a kind of high-strength short beam sawing-resistant padlock, including lock body and lock beam, the lock beam includes long rod section and short rod section, the long rod section outside and short rod section outside are rotationally provided with sawing-resistant cylinder, steel wire sawing-resistant net is provided in sawing-resistant cylinder;Two the bottom of sawing-resistant cylinder is provided with bottom support, and two bottom supports are fixedly connected on long rod section and short rod section respectively;The top of lock body is fixedly connected with sawing-resistant block, and the outer side of sawing-resistant block is arc-shaped;Two sawing-resistant cylinders are provided with through hole on the sawing-resistant block, and the diameters of two through holes are greater than or equal to the outer diameters of two sawing-resistant cylinders.

[0006] In the foregoing high-strength short beam sawing-resistant padlock, a protective cover is fixedly sleeved on the side surface of the lock body, and the protective cover is made of high-strength steel wire.

[0007] In the foregoing high-strength short beam sawing-resistant padlock, the surfaces of the protective cover, the sawing-resistant cylinder and the sawing-resistant block are sprayed with a sawing-resistant coating, and the sawing-resistant coating contains quartz sand.

[0008] In the foregoing high-strength short beam sawing-resistant padlock, a lock core hole is formed in the bottom of the lock body, and a dustproof plate is rotationally arranged on the side of the lock body corresponding to the lock core hole.

[0009] The high-strength short-beam saw-proof padlock has a limiting block fixedly arranged at the bottom of the through hole, and a limiting hole in the shape of a regular polygon is formed in the limiting block; the outer edge of the bottom support is matched with the limiting hole, and the outer edge of the bottom support does not exceed the outer diameter of the saw-proof cylinder, and the bottom support is embedded in the limiting hole when the lock body and the lock beam are locked.

[0010] Compared with the prior art, the long rod section and the short rod section which are easily damaged by a saw are rotatably arranged with the saw-proof cylinders, and the steel wire saw-proof net is embedded in the saw-proof cylinders, so that when the saw is used for cutting, the saw-proof cylinders rotate to change the stress points of the saw, and the steel wire saw-proof net embedded in the saw-proof cylinders can hinder the saw teeth of the saw and destroy the smoothness of the cutting action of the saw, so that the cutting difficulty of the saw on the lock beam part is increased, and the saw-proof strength is high; the saw-proof block is fixedly connected to the top of the lock body, and the through hole with a larger diameter than the outer diameter of the saw-proof cylinder is formed in the saw-proof block corresponding to the two saw-proof cylinders, and the outer side of the saw-proof block is in the shape of a circular arc, so that the long rod section, the short rod section and the saw-proof cylinders thereon can be wrapped in the saw-proof block, and the saw-proof cylinders and the lock beam in the saw-proof block can be cut only after the saw-proof block is damaged, and the outer side of the saw-proof block is in the shape of a circular arc, so that the saw is less likely to find a stress point when cutting the outer side of the saw-proof block, the cutting difficulty is increased, and the saw-proof strength is improved.

[0011] In addition, the protective cover made of high-strength steel wire is fixedly sleeved on the side surface of the lock body, so that when the saw cuts the lock body, the steel wire on the protective cover hinders the saw teeth, so that the cutting action is not smooth, and the saw-proof strength is high; the saw-proof layer added with quartz sand is sprayed on the surfaces of the protective cover, the saw-proof cylinder and the saw-proof block, so that when the protective cover, the saw-proof cylinder and the saw-proof block are cut, the saw teeth of the saw touch the quartz sand in the saw-proof coating, and the continuous contact with the quartz sand with high hardness dulls the saw teeth, so that the subsequent cutting action becomes more difficult.

[0012] The lock cylinder hole is formed in the bottom of the lock body, and the dust plate is rotatably arranged on the side of the lock body corresponding to the lock cylinder hole, so that the dust plate can shield the lock cylinder hole and prevent foreign matters from entering the lock body through the lock cylinder hole and affecting the use of the lock body, and when the lock cylinder hole is used for unlocking, the dust plate can be rotated to expose the lock cylinder hole for unlocking action, and the dustproof effect is good.

[0013] By setting the limiting block with regular polygon limiting hole at the bottom of the through hole, and the outer edge of the bottom support matches the limiting hole, when the lock body is locked with the lock beam, the bottom support can be embedded into the limiting hole, so that in the locked state, the long rod section and the short rod section of the lock beam are limited in position and cannot rotate, and after the lock beam is sawn off, the fixed long rod section and the short rod section can still maintain the original locked state, unless the lock beam is cut for multiple times to change the position, one section of the lock beam is cut off, which has high safety.

[0014] Therefore, the anti-saw strength is high, and the dustproof effect is good and the safety is good. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the utility model;

[0016] Figure 2 is a sectional view of the utility model;

[0017] Figure 3 is Figure 2 is a bottom view of A in figure;

[0018] Figure 4 is Figure 2 is an enlarged view of B in figure;

[0019] Figure 5 is a side view of the utility model;

[0020] Figure 6 is a top view of the utility model;

[0021] Figure 7 is a bottom view of the utility model.

[0022] The marks in the drawings are: 1-lock body, 2-lock beam, 21-long rod section, 22-short rod section, 3-anti-saw cylinder, 4-steel wire anti-saw net, 5-bottom support, 6-anti-saw block, 7-through hole, 8-protective cover, 9-lock core hole, 10-dustproof plate, 11-limiting block, 12-limiting hole. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings and examples, but not as the basis for limiting the utility model.

[0024] Example. A high-strength short-beam anti-saw padlock is composed of Figures 1 to 7As shown, including the lock body 1 and lock beam 2, lock beam 2 includes long rod section 21 and short rod section 22, the long rod section 21 and short rod section 22 are rotatably provided with sawproof cylinder 3 outside, the sawproof cylinder 3 is provided with steel wire sawproof net 4 inside; Two said sawproof cylinder 3 bottom is provided with bottom support 5, two bottom supports 5 are fixedly connected on long rod section 21 and short rod section 22 respectively; The lock body 1 top is fixedly connected with sawproof block 6, the sawproof block 6 outside is arc-shaped; Sawproof block 6 is provided with through hole 7 at the corresponding two sawproof cylinder 3, the diameter of two through holes 7 is greater than or equal to the outer diameter of two sawproof cylinders 3.

[0025] The lock body 1 side is fixedly provided with a protective cover 8 made of high-strength steel wire.

[0026] The surface of the protective cover 8, the sawproof cylinder 3 and the sawproof block 6 is sprayed with a sawproof coating, and the sawproof coating is added with quartz sand.

[0027] The lock body 1 bottom is provided with a lock cylinder hole 9, and the lock body 1 bottom is rotatably provided with a dust plate 10 corresponding to the lock cylinder hole 9.

[0028] The through hole 7 bottom is fixedly provided with a limiting block 11, and the limiting block 11 is provided with a limiting hole 12 in the form of a regular polygon; The outer edge of the bottom support 5 is fitted with the limiting hole 12, the outer edge of the bottom support 5 does not exceed the outer diameter of the sawproof cylinder 3, and the bottom support 5 is embedded in the limiting hole 12 when the lock body 1 and the lock beam 2 are locked.

[0029] Working principle: when using the padlock, first insert the key into the lock cylinder hole 9 and rotate, separate the lock beam 2 and the lock body 1, and then lock the target; At this time, the bottom support 5 and the sawproof cylinder 3 on the long rod section 21 and the short rod section 22 will respectively move down in the two through holes 7 and enter the inside of the sawproof block 6; When the lock beam 2 and the lock body 1 are locked, the bottom support 5 will be embedded in the limiting hole 12 of the limiting block 11 provided at the bottom of the through hole 7; At this time, even if the lock beam 2 is sawn off, the long rod section 21 and the short rod section 22 will be fixed and limited by the bottom support 5, and cannot be rotated, so that the lock beam 2 also has locking effect in the broken state; Then, rotate the dust plate 10 at the bottom of the lock body 1 to cover the lock cylinder hole 9, preventing foreign matter from entering the inside of the lock body 1 through the lock cylinder hole 9.

[0030] In the locked state, the saw-proof cylinder 3 will wrap the long rod section 21 and the short rod section 22 which are easy to be violently sawn by a saw, and the saw-proof block 6 fixed on the top of the lock body 1 will wrap the long rod section 21, the short rod section 22 and the saw-proof cylinder 3 together. Since the outer side of the saw-proof block 6 is arc-shaped, when being cut by a saw, the stress point is small, which will cause the saw to slide away at the beginning of cutting, increasing the cutting difficulty. If the saw-proof block 6 is damaged, when cutting the saw-proof cylinder 3, the saw will drive the entire saw-proof cylinder 3 to rotate on the lock beam 2, changing the stress point of the saw, so that the saw is not easy to cut the saw-proof cylinder 3. Moreover, the steel wire saw-proof net 4 embedded in the saw-proof cylinder 3 will make the saw teeth of the saw embedded in the mesh hole after cutting the outer layer of the saw-proof cylinder 3, so that the saw is not easy to perform the pulling cutting action, improving the saw-proof strength. Similarly, the protective cover 8 arranged on the side of the lock body 1 will produce embedding and hindering effect on the saw teeth of the saw when facing the saw cutting, since the protective cover 8 is made of high-strength steel wire. Since the surfaces of the protective cover 8, the saw-proof cylinder 3 and the saw-proof block 6 are sprayed with a saw-proof layer added with quartz sand, the saw teeth of the saw will collide with the quartz sand with high hardness when cutting, so that the saw teeth become blunt, making the cutting action more difficult.

Claims

1. A high-strength short-bar anti-saw padlock comprising a lock body (1) and a lock bar (2), the lock bar (2) comprising a long rod section (21) and a short rod section (22), characterized in that: The outer side of the long rod section (21) and the outer side of the short rod section (22) are rotationally provided with anti-saw barrels (3), and the anti-saw barrels (3) are provided with steel wire anti-saw nets (4) inside; the bottoms of the two anti-saw barrels (3) are provided with bottom supports (5), and the two bottom supports (5) are fixedly connected to the long rod section (21) and the short rod section (22), respectively; the top of the lock body (1) is fixedly connected with an anti-saw block (6), and the outer side of the anti-saw block (6) is arc-shaped; the anti-saw block (6) is provided with through holes (7) corresponding to the two anti-saw barrels (3), and the diameters of the two through holes (7) are greater than or equal to the outer diameters of the two anti-saw barrels (3).

2. A high security short shank anti-saw lock according to claim 1 wherein: The side of the lock body (1) is fixedly sleeved with a protective cover (8) made of high-strength steel wire.

3. A high security short shank anti-saw lock according to claim 2 wherein: The surfaces of the protective cover (8), the anti-saw barrels (3) and the anti-saw block (6) are all sprayed with anti-saw coatings, and the anti-saw coatings are added with quartz sand.

4. A high security short shank anti-saw lock according to claim 1 wherein: The bottom of the lock body (1) is provided with a lock cylinder hole (9), and the bottom of the lock body (1) is rotationally provided with a dustproof plate (10) on the side corresponding to the lock cylinder hole (9).

5. A high security short shank anti-saw lock according to claim 1 wherein: The bottom of the through hole (7) is fixedly provided with a limiting block (11), and the limiting block (11) is provided with a limiting hole (12) in the shape of a regular polygon; the outer edge of the bottom support (5) is fitted with the limiting hole (12), the outer edge of the bottom support (5) does not exceed the outer diameter of the anti-saw barrel (3), and the bottom support (5) is just embedded into the limiting hole (12) when the lock body (1) and the lock beam (2) are locked.

Images