Lock cylinder protection structure of anti-shearing lock

Abstract

The invention relates to the technical field of lock cylinders, in particular to an anti-shear lock cylinder protection structure which comprises a lock cylinder body. One side of the lock cylinder body is connected with a partition plate through a connecting piece; a first guide pipe is installed on the side, close to the lock cylinder body, of the partition plate, and a second guide pipe is installed on the side, close to the partition plate, of the lock cylinder body. A fiber blocking structure is installed at the opposite ends of the first guide pipe and the second guide pipe and used for cleaning fibers in the lock cylinder body. A part of impurities freely float into the lock cylinder, the other part of the impurities are brought in when the key is inserted, when the key is inserted, the impurities, fibers and hair adhering to the outer surface of the key are scraped, and meanwhile, when the key is pulled out, hair and fibers originally located in the lock cylinder can be treated.

Description

Technical Field

[0001] The invention relates to the technical field of lock cores, and in particular to a shear-resistant lock core protection structure. Background Art

[0002] The lock core is the core component of the lock. Its material and structure directly affect the safety performance of the lock. The materials of the lock core are usually copper, stainless steel, zinc alloy, etc. Among them, copper lock core is widely used due to its good mechanical properties and processing performance. The structural design of the lock core is sophisticated and complex. The internal pins and blades match the cutting pattern of the key to ensure the safety of the lock. When selecting a lock core, you should consider its technical indicators such as anti-technical opening time, mutual opening rate and key quantity.

[0003] An application document with a publication number of CN207144655U is named as a new lock core. The lock core body includes two end faces and a fixing plate. The end faces are provided with a lock hole. The fixing plate is provided with a strip groove, and the strip groove is connected to the lock hole. A strip magnet is provided between the two end faces. The strip magnet is distributed with baffles. The other end face of the baffle is an arc surface, and the arc surface and the end face are the same as the circumferential surface. The blade is placed between adjacent baffles. The blade is attracted by the bar magnet and leans toward the direction of the bar magnet. The blade is set in a U-shaped structure as a whole. Steps are provided on both sides of the upper end of the inner surface of the U-shaped structure. One side of the U-shaped structure is close to the bottom of the U-shaped structure and is provided with a protrusion next to the step, or a convex point is provided at the bottom of the U-shaped structure. The new lock core structure is reasonably designed, novel and simple. The use of magnets instead of springs can quickly realize rapid assembly, reduce production costs, greatly improve work efficiency, and is easy to promote.

[0004] Although the above lock core can be assembled quickly and reduce production costs, dust and fibers often enter the lock core during actual use. When foreign matter enters the lock core, the wear inside the lock core is aggravated, shortening its service life. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a shear-resistant lock core protection structure.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A shear-resistant lock core protection structure is designed, including a lock core body:

[0008] One side of the lock core body is connected to a partition through a connecting piece;

[0009] A first guide tube is installed on one side of the partition close to the lock core body, and a second guide tube is installed on one side of the lock core body close to the partition;

[0010] A fiber blocking structure is installed at the opposite end of the first guide tube and the second guide tube, which is used to clean the fibers in the lock core body.

[0011] Preferably, the barrier structure comprises an annular groove, a rubber ring, a first contact surface and a second contact surface;

[0012] The annular groove is formed at the opposite end of the first guide tube and the second guide tube;

[0013] The rubber ring is rotatably arranged inside the annular groove, and the annular groove and the rubber ring cooperate with each other;

[0014] The outer surface of the rubber ring is wrapped by the first contact surface and the second contact surface.

[0015] Preferably, the surface areas of the first contact surface and the second contact surface are set to be the same.

[0016] Preferably, the material of the second contact surface is silicone.

[0017] Preferably, the material of the first contact surface is brushed cloth.

[0018] Preferably, a cavity is provided in the lock core body on one side close to the partition, and a cutting structure is provided at the lower end of the cavity.

[0019] Preferably, the cutting structure includes a baffle and a cutting knife;

[0020] The two baffles are symmetrically arranged on the inner side of the cavity, and the position of the second guide tube matches the positions of the two baffles;

[0021] The cutting knives are distributed in a horizontal array on one side of the baffle, and the middle parts of the cutting knives bulge outwards.

[0022] Preferably, a through-type notch is provided at the bottom of the cavity, and the notch is located below the two baffles.

[0023] Preferably, a rejection structure is further provided at the outer connection between the first guide tube and the second guide tube;

[0024] The rejecting structure includes a scraper and a bracket, wherein the bracket is installed at the outer connection between the first guide tube and the second guide tube, and the scraper is symmetrically arranged on the inner side of the bracket, and the scraper is in contact with the outer surface of the rubber ring.

[0025] Preferably, an oil collecting chamber is provided inside the first guide tube, and one end of the oil collecting chamber is in contact with the rubber ring.

[0026] The present invention proposes an anti-shear lock core protection structure, which has the beneficial effect that: in the anti-shear lock core protection structure, part of the impurities float freely into the lock core, and the other part is brought in when the key is inserted. When the key is inserted, the impurities and fiber hair adhering to the outer surface of the key are scraped off, and when the key is pulled out, the hair and fibers originally located inside the lock core can also be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of an anti-shear lock core protection structure proposed by the present invention.

[0028] Figure 2 This is a structural front view of an anti-shear lock core protection structure proposed by the present invention.

[0029] Figure 3 A structural side view of an anti-shear lock core protection structure proposed by the present invention.

[0030] Figure 4 This is a structural rear view of an anti-shear lock core protection structure proposed by the present invention.

[0031] Figure 5 for Figure 1 An enlarged structural view of part A of a proposed shear-resistant lock cylinder protection structure.

[0032] Figure 6 This is an enlarged view of the structure of a rubber ring of a shear-resistant lock core protection structure proposed by the present invention.

[0033] Figure 7 for Figure 6 Structural schematic diagram of the BB section of a proposed shear-resistant lock cylinder protection structure.

[0034] In the figure: lock core body 1, cavity 2, connecting piece 3, partition 4, first guide tube 5, second guide tube 6, annular groove 7, rubber ring 8, baffle 9, cutting knife 10, scraper 11, oil collecting chamber 12, bracket 13, notch 14, first contact surface 15, second contact surface 16. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Example 1

[0037] Reference Figure 1-4 , a shear-resistant lock core protection structure, comprising a lock core body 1:

[0038] One side of the lock core body 1 is connected to a partition plate 4 via a connecting piece 3;

[0039] A first guide tube 5 is installed on one side of the partition plate 4 close to the lock core body 1, and a second guide tube 6 is installed on one side of the lock core body 1 close to the partition plate 4;

[0040] A fiber blocking structure is installed at the opposite end of the first guide tube 5 and the second guide tube 6 to clean the fibers in the lock core body 1 .

[0041] The barrier structure includes an annular groove 7, a rubber ring 8, a first contact surface 15 and a second contact surface 16;

[0042] The annular groove 7 is formed at the opposite end of the first guide tube 5 and the second guide tube 6;

[0043] The rubber ring 8 is rotatably arranged inside the annular groove 7, and the annular groove 7 and the rubber ring 8 cooperate with each other;

[0044] The outer surface of the rubber ring 8 is wrapped by the first contact surface 15 and the second contact surface 16 .

[0045] When the user inserts the key into the inner side of the lock core body 1, the key first passes through the first guide tube 5 on one side of the partition 4. When the key is about to enter the inner side of the second guide tube 6, the rubber ring 8 located in the gap between the first guide tube 5 and the second guide tube 6 can come into contact with the inserted key. In the process of coming into contact with the key, the outer surface of the rubber ring 8 is squeezed with the key, and the adhered dust, fibers and hair are transferred to the inner side of the rubber ring 8. The insertion of the key generates friction on the rubber ring 8. Under the action of the friction, the rubber ring 8 will turn over. Since the inner sides of the annular grooves 7 on both sides are arc-shaped, the rubber ring 8 has a good limiting effect. After the key is inserted, the dust is adhered to the outer surface of the rubber ring 8, and the rubber ring 8 turns over. After the turning over, the inner wall of the rubber ring 8 that originally adhered to the dust and impurities will change its position and be exposed to the outside, so as to facilitate the cleaning of the adsorbed impurities.

[0046] Example 2

[0047] Some impurities are not brought in by the key being inserted, but rather dust and fibers enter the lock cylinder freely, so they cannot be cleaned by inserting the key.

[0048] refer to Figure 1-5 The difference between this embodiment and embodiment 1 is that an oil collecting chamber 12 is provided inside the first guide tube 5 , and one end of the oil collecting chamber 12 is in contact with the rubber ring 8 .

[0049] To this end, an oil collecting chamber 12 is opened on the outer wall of the first guide tube 5, and the inner side of the oil collecting chamber 12 is filled with lubricating oil. When the key is inserted, the lubricating oil will soak the second contact surface 16 of the inner ring of the rubber ring 8 during the rotation of the rubber ring 8, that is, when the key is inserted, the key first contacts the second contact surface 16. The material of the second contact surface 16 is silicone. The silicone is soft, and the oil can easily stick to the outer surface of the silicone. At the same time, the oil is applied to the surface of the key during the contact with the key. When the key is inserted into the lock core, it comes into contact with impurities such as dust and fiber. The principle that the key is easy to adhere to fiber and dust after being wet mainly involves the surface tension and van der Waals force of water molecules. When the surface of an object is wet, the oil molecules will form a thin film on the surface. This film can increase the roughness of the surface of the object, making the microscopic bumps on the surface more obvious. These bumps can capture and fix fiber and dust particles. In addition, the van der Waals force between oil molecules can enhance the adhesion between the surface of the object and the fibers and dust, because the wet surface provides more intermolecular contact points, making it easier for these particles to be fixed on the surface. When the key is pulled out, the impurities can be brought out. At the same time, the lubricating oil that enters can effectively lubricate the inside of the lock cylinder and reduce the wear inside the lock cylinder.

[0050] Example 3

[0051] The surface of the key not only contains impurities such as fibers, but also contains the oil that was originally adhered to it. The oil needs to be removed before the key is pulled out.

[0052] refer to Figure 6-7 The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the surface areas of the first contact surface 15 and the second contact surface 16 are set to be the same, the material of the second contact surface 16 is silicone, and the material of the first contact surface 15 is brushed cloth.

[0053] A cavity 2 is provided in the lock core body 1 on one side close to the partition 4, and a cutting structure is provided at the lower end of the cavity 2, the cutting structure including a baffle 9 and a cutting knife 10;

[0054] The two baffles 9 are symmetrically arranged on the inner side of the cavity 2, and the position of the second guide tube 6 matches the position of the two baffles 9;

[0055] The cutting knives 10 are distributed in a horizontal array on one side of the baffle plate 9 , and the middle part of the cutting knives 10 bulges outwards. A through-type notch 14 is opened at the bottom of the cavity 2 , and the notch 14 is located below the two baffle plates 9 .

[0056] A rejection structure is also provided at the outer connection between the first guide tube 5 and the second guide tube 6;

[0057] The rejecting structure includes a scraper 11 and a bracket 13 . The bracket 13 is installed at the outer connection between the first guide tube 5 and the second guide tube 6 . The scraper 11 is symmetrically arranged on the inner side of the bracket 13 . The scraper 11 and the outer surface of the rubber ring 8 fit each other.

[0058] Therefore, when the key is pulled out, the key first passes through the cutter 10 between the two partitions 4, and the cutters 10 on both sides fit the pulled out key, so that when the key is pulled out, the cutter 10 can be used to cut the fiber and hair, and the cut impurities fall from the notch 14;

[0059] When the key is pulled out, it contacts the originally turned over rubber ring 8. At this time, the first contact surface 15 contacts the pulled out key. The material of the first contact surface 15 is brushed cloth. The brushed cloth can absorb oil and impurities during the contact with the key. The scraper 11 arranged outside the gap between the first guide tube 5 and the second guide tube 6 can scrape off the impurities adhered to the surface of the rubber ring 8 during the turning process, so as not to affect the next use.

[0060] The working principle of the device is as follows:

[0061] When the user inserts the key into the inner side of the lock core body 1, the key first passes through the first guide tube 5 on one side of the partition 4. When the key is about to enter the inner side of the second guide tube 6, the rubber ring 8 located in the gap between the first guide tube 5 and the second guide tube 6 can come into contact with the inserted key. In the process of coming into contact with the key, the outer surface of the rubber ring 8 is squeezed with the key, and the adhered dust, fibers and hair are transferred to the inner side of the rubber ring 8. The insertion of the key generates friction on the rubber ring 8. Under the action of the friction, the rubber ring 8 will turn over. Since the inner sides of the annular grooves 7 on both sides are arc-shaped, the rubber ring 8 has a good limiting effect. After the key is inserted, the dust is adhered to the outer surface of the rubber ring 8, and the rubber ring 8 turns over. After the turning over, the inner wall of the rubber ring 8 that originally adhered to the dust and impurities will change its position and be exposed to the outside, so as to facilitate the cleaning of the adsorbed impurities.

[0062] Some impurities are not brought in by the key being inserted, but rather dust and fibers enter the lock cylinder freely, so they cannot be cleaned by inserting the key.

[0063] To this end, an oil collecting chamber 12 is opened on the outer wall of the first guide tube 5, and the inner side of the oil collecting chamber 12 is filled with lubricating oil. When the key is inserted, the lubricating oil will soak the second contact surface 16 of the inner ring of the rubber ring 8 during the rotation of the rubber ring 8, that is, when the key is inserted, the key first contacts the second contact surface 16. The material of the second contact surface 16 is silicone. The silicone is soft, and the oil can easily stick to the outer surface of the silicone. At the same time, the oil is applied to the surface of the key during the contact with the key. When the key is inserted into the lock core, it comes into contact with impurities such as dust and fiber. The principle that the key is easy to adhere to fiber and dust after being wet mainly involves the surface tension and van der Waals force of water molecules. When the surface of an object is wet, the oil molecules will form a thin film on the surface. This film can increase the roughness of the surface of the object, making the microscopic bumps on the surface more obvious. These bumps can capture and fix fiber and dust particles. In addition, the van der Waals force between oil molecules can enhance the adhesion between the surface of the object and the fibers and dust, because the wet surface provides more intermolecular contact points, making it easier for these particles to be fixed on the surface. When the key is pulled out, the impurities can be brought out. At the same time, the lubricating oil that enters can effectively lubricate the inside of the lock cylinder and reduce the wear inside the lock cylinder.

[0064] The surface of the key not only contains impurities such as fibers, but also contains the oil that was originally adhered to it. The oil needs to be removed before the key is pulled out.

[0065] Therefore, when the key is pulled out, the key first passes through the cutter 10 between the two partitions 4, and the cutters 10 on both sides fit the pulled out key, so that when the key is pulled out, the cutter 10 can be used to cut the fiber and hair, and the cut impurities fall from the notch 14;

[0066] When the key is pulled out, it contacts the originally turned over rubber ring 8. At this time, the first contact surface 15 contacts the pulled out key. The material of the first contact surface 15 is brushed cloth. The brushed cloth can absorb oil and impurities during the contact with the key. The scraper 11 arranged outside the gap between the first guide tube 5 and the second guide tube 6 can scrape off the impurities adhered to the surface of the rubber ring 8 during the turning process, so as not to affect the next use.

[0067] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shear-resistant lock core protection structure, comprising a lock core body (1), characterized in that: One side of the lock core body (1) is connected to a partition plate (4) via a connecting piece (3); A first guide tube (5) is installed on a side of the partition (4) close to the lock core body (1), and a second guide tube (6) is installed on a side of the lock core body (1) close to the partition (4); A fiber blocking structure is installed at the opposite end of the first guide tube (5) and the second guide tube (6), and is used to clean the fibers in the lock core body (1).

2. The anti-shear lock core protection structure according to claim 1, characterized in that: The barrier structure comprises an annular groove (7), a rubber ring (8), a first contact surface (15) and a second contact surface (16); The annular groove (7) is formed at an opposite end of the first guide tube (5) and the second guide tube (6); The rubber ring (8) is rotatably arranged on the inner side of the annular groove (7), and the annular groove (7) and the rubber ring (8) cooperate with each other; The outer surface of the rubber ring (8) is wrapped by a first contact surface (15) and a second contact surface (16).

3. The anti-shear lock core protection structure according to claim 2, characterized in that: The surface areas of the first contact surface (15) and the second contact surface (16) are arranged to be the same.

4. The anti-shear lock core protection structure according to claim 3, characterized in that: The material of the second contact surface (16) is silicone.

5. The anti-shear lock core protection structure according to claim 4, characterized in that: The material of the first contact surface (15) is a brushed cloth.

6. The anti-shear lock core protection structure according to claim 5, characterized in that: A cavity (2) is provided in the lock core body (1) on one side close to the partition plate (4), and a cutting structure is provided at the lower end of the cavity (2).

7. The anti-shear lock core protection structure according to claim 6, characterized in that: The cutting structure comprises a baffle (9) and a cutting knife (10); The two baffles (9) are symmetrically arranged on the inner side of the cavity (2), and the position of the second guide tube (6) matches the positions of the two baffles (9); The cutting knives (10) are distributed in a horizontal array on one side of the baffle (9), and the middle part of the cutting knives (10) bulges outwards.

8. The anti-shear lock core protection structure according to claim 7, characterized in that: A through-type notch (14) is provided at the bottom of the cavity (2), and the notch (14) is located below the two baffles (9).

9. The anti-shear lock core protection structure according to claim 8, characterized in that: A rejection structure is also provided at the outer connection between the first guide tube (5) and the second guide tube (6); The rejecting structure comprises a scraper (11) and a bracket (13); the bracket (13) is installed at the outer connecting portion of the first guide tube (5) and the second guide tube (6); the scraper (11) is symmetrically arranged on the inner side of the bracket (13); and the scraper (11) and the outer surface of the rubber ring (8) are in contact with each other.

10. The anti-shear lock cylinder protection structure according to claim 9, characterized in that: An oil collecting chamber (12) is provided inside the first guide tube (5), and one end of the oil collecting chamber (12) is in contact with the rubber ring (8).

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