Lock cylinder capable of preventing violent damage

Abstract

The invention discloses a lock cylinder capable of preventing violent damage, and relates to the technical field of lock cylinders. The anti-theft lock comprises a lock shell, a dial wheel and a clutch, the lock shell is composed of a middle shell and two side shell bodies, a dial wheel opening is formed in the middle of the middle shell, an inner connecting sleeve and an outer connecting sleeve are formed in the two sides of the middle shell through the dial wheel opening, guide pins are arranged on the two sides of the middle shell, and the two side shell bodies are symmetrically arranged at the two ends of the middle shell. The lock shell is divided into the two side shell bodies and the middle shell body, it is guaranteed that the side shell body on the outer side can be rapidly separated from the connecting point of the middle shell body after the lock shell is damaged, a locking pin can be promoted to be lifted to lock an external connection section, a first protection measure is taken, second-step protection is carried out through the design of an outer clutch with a telescopic convex tongue, and the safety of the lock shell is improved. And through cooperation of the wheel locking pin and the wheel locking opening and combination of ejection of a third spring in the inner clutch, the third-step protection measure is achieved, triple protection in the lock cylinder can actively lock the shifting wheel after being damaged, and safety is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of lock cores, and in particular relates to a lock core that is resistant to violent destruction. Background Art

[0002] In the case of violent destruction of the lock core, it is first destroyed from the outside of the door with tools. Generally, various tools are used to destroy the outside of the lock core door first. If the lock core is damaged or broken, the dial wheel can be easily unlocked. Once the dial wheel is turned to unlock, the door lock can be opened, which is not safe enough.

[0003] If a lock core is designed that can automatically lock the dial wheel after the outer side of the lock core is damaged, the security of the lock core can be greatly improved, making it more difficult to violently destroy it. However, if the outer side of the lock core is damaged, the clutch connecting the dial wheel and the lock core may be damaged, making it impossible to unlock the door from the inside, resulting in the door being locked.

[0004] Therefore, it is a problem that the staff in this field need to solve to design a lock core which can automatically lock the dial wheel when damaged and does not affect the unlocking of the inner side of the door. Summary of the invention

[0005] The purpose of the present invention is to provide a lock core that is resistant to violent destruction. By dividing the lock shell into two side shells and an intermediate shell, it is ensured that the outer side shell can be quickly separated from the connection point of the intermediate shell after being damaged, which can prompt the locking pin to lift and lock the external connection section, thereby playing a first protective measure. The second step of protection is performed through the design of a retractable external clutch with a protruding tongue. The third step of protection is achieved through the cooperation of the lock wheel pin and the lock wheel mouth, combined with the popping out of the third spring in the inner clutch. The triple protection in the lock core can actively lock the dial wheel after being damaged, thereby greatly improving the ability of the lock core to resist violent destruction and improving safety.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a lock core that can prevent violent damage, comprising a lock housing, a dial wheel and a clutch; The lock housing is composed of an intermediate housing and two side housings, a dial opening is provided in the middle of the intermediate housing, inner and outer sleeves are formed on both sides of the intermediate housing by the dial opening, and guide pins are provided on both sides of the intermediate housing; The two side shells are symmetrically arranged at the two ends of the middle shell, the inner side surfaces of the side shells are provided with guide grooves, and the guide pins are fixed in the guide grooves; An outer lock core and an inner lock core are respectively arranged in the two side shells, and a plurality of pin mechanisms are linearly arranged between the outer lock core and the inner lock core and the side shells. An outer connecting section is movably connected to the inner end of the outer lock core, and the outer connecting section is arranged in the outer connecting sleeve. The outer connecting section is connected to the end of the outer lock core through a convex point mechanism, and a locking port and an outer connecting port are arranged on the peripheral side of the outer connecting section; The intermediate shell is provided with a through hole facing the axis of the external sleeve, the intermediate shell is provided with a trigger groove connected with the through hole on the side close to the external sleeve, a trigger pin is provided in the trigger groove, one end of the trigger pin is provided with a concave cavity, a first spring is provided in the concave cavity, two ends of the trigger pin are respectively fitted with the inner wall of the through hole and the inner side of the side shell body, a locking pin is fixed to the end of the through hole away from the external sleeve through the second spring, and the locking pin is located between the trigger pin and the second spring; The inner end of the inner lock core is provided with a cylindrical cavity, and the circumferential side surface of the inner end of the inner lock core is provided with an inner connection port and a lock wheel port; The clutch comprises an inner clutch part and an outer clutch part, wherein the inner clutch part comprises a spring cover, a third spring and an inner clutch column connected in sequence, wherein the inner clutch part is slidably arranged in a cylindrical cavity, wherein the circumferential side surface of the inner clutch column is provided with an inner convex edge matched with a dial wheel and an inner connection port, wherein a preset port is provided on the inner clutch column, wherein a wheel lock pin is slidably connected in the preset port, and wherein the wheel lock pin and the wheel lock port are linearly distributed; The external clutch portion comprises an external clutch column, a clutch pin and a protruding tongue, a horizontal opening being provided at the axis center of the external clutch column, an inner recess being provided on the peripheral side surface of the external clutch column, the protruding tongue being slidably arranged in the inner recess and a fourth spring being provided between the protruding tongue and the inner recess, an upper through opening and a lower through opening being provided on the protruding tongue, one end of the clutch pin passing through the external connecting section and being fixedly connected to the inner end portion of the external lock core, the other end of the clutch pin passing through the horizontal opening and the lower through opening, a locking head being fixed in the upper through opening by a fifth spring, an external locking opening being provided at one end of the external clutch column away from the clutch pin and being connected to the inner recess, and the locking head and the external locking opening being clearance-matched.

[0007] Furthermore, when the outer side of the lock core is violently damaged and pulled off, the side shell body with the outer lock core, the outer lock core, the clutch pin and the guide pin of the intermediate shell close to the outer lock core are broken and detached, and the trigger pin is not blocked by the side shell body. The first spring pops the trigger pin out of the trigger groove, and the locking pin passes through the trigger pin through the elastic force of the second spring and is stuck in the locking mouth of the external section. At this time, the external section cannot rotate and the corresponding dial is locked.

[0008] Furthermore, when the outer side of the lock core is violently damaged and pulled off, along with the breakage and separation of the outer lock core and the side shell body, the clutch pin is pulled out and separated from the horizontal opening and the lower through-opening along with the outer lock core, and the protruding tongue is completely retracted into the inner recess by the fourth spring. When the upper through-opening is concentric with the outer lock opening, the locking head is extended out and stuck in the outer lock opening by the fifth spring. At this time, the outer surface of the outer clutch column is smooth and the connection with the dial wheel is released. Even if the outer clutch part rotates, it cannot drive the dial wheel to rotate.

[0009] Furthermore, when the outer side of the lock core is violently damaged and pulled off, as the clutch pin is pulled out, a clearance space is formed between the inner clutch part and the outer connecting section, and the elastic force of the third spring pushes the inner clutch column and the outer clutch column to move toward the outer connecting section. When the lock wheel pin moves to the lock wheel mouth position, it falls into the lock wheel mouth due to gravity, causing the outer clutch column to move away from the dial wheel. The dial wheel is connected to the inner lock core through the inner clutch part, and the outer clutch part has no interference with the dial wheel.

[0010] Furthermore, the side shell body is composed of a bead loading part and a core loading part, the bead loading part is provided with a plurality of pin grooves connected with the core loading part, and the guide groove is arranged at the edge of the bead loading part and away from the pin mechanism.

[0011] Furthermore, the inner lock core and the outer lock core are both provided with a keyhole, and the peripheral side surfaces of the inner lock core and the outer lock core are both linearly provided with a plurality of bullet openings connected to the keyhole, and the plurality of bullet openings are respectively opposite to the positions of a plurality of ball grooves, and the ball mechanism is installed in the bullet openings and the ball grooves.

[0012] Furthermore, a group of fastening openings connected to the guide groove are provided on both sides of the bead loading portion, a fastening point opposite to the fastening opening is provided on the guide pin, a fastening screw is provided in the fastening opening, and the inner end surface of the fastening screw extends into the fastening point of the guide pin.

[0013] Furthermore, the guide pin is integrally formed with the intermediate shell, and a fracture guide groove is provided on the peripheral side surface of one end of the guide pin close to the outer lock core close to the intermediate shell.

[0014] Furthermore, a group of grooves are provided on the end surface of the external connection section, and a protrusion which is gap-matched with the grooves is provided on the end surface of the external lock core.

[0015] Furthermore, the intermediate shell is made of high-strength steel.

[0016] The present invention has the following beneficial effects: The present invention divides the lock housing into two side housings and an intermediate housing, and connects the two by guide pins, so as to ensure that the outer side housing can be quickly separated from the connection point of the intermediate housing after being damaged, and provides an active breaking point, so as to prompt the locking pin to lift and lock the external connection section, thereby locking the clutch and the dial, which plays a first protective measure. Through the design of the external clutch with a retractable tongue, the connection between the external clutch part and the dial can be retracted and released after being damaged, and even if the external clutch part rotates, it will not be transmitted to the dial. If the first protective measure fails, the second step can still be carried out. Protection, through the cooperation of the lock wheel pin and the lock wheel mouth, combined with the pop-up of the third spring in the inner clutch, the connection between the inner lock core and the inner clutch part is realized after being damaged, and the dial wheel is locked again through the inner lock core, thereby realizing the third step of protection measures. The triple protection in the lock core can actively lock the dial wheel after being damaged, which greatly improves the ability of the lock core to resist violent damage and improves safety. At the same time, it still does not affect the use of the inner lock core. Even if the outer lock core part of the lock core is damaged, it still does not affect the opening of the lock core from the inside of the door, thus avoiding the situation where the door cannot be opened due to lock core damage.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a structural explosion diagram of a lock core that is resistant to violent destruction according to the present invention; Figure 2 It is a structural cross-sectional view of the present invention; Figure 3 It is a schematic diagram of the structure of the intermediate housing and the external clutch part; Figure 4 It is a schematic diagram of the structure of the side housing and the inner clutch part; Figure 5 It is a structural schematic diagram of the external clutch part; Figure 6 It is a structural cross-sectional view of the outer clutch part; Figure 7 It is the structural explosion diagram of the external clutch part; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-dial wheel, 2-external lock core, 3-inner lock core, 4-pin mechanism, 5-middle shell, 6-side shell, 7-inner clutch, 8-external section, 9-external clutch, 301-cylindrical cavity, 302-inner connection port, 303-lock wheel port, 501-dial wheel port, 502-inner connection sleeve, 503-external connection sleeve, 504-guide pin, 505-through port, 506-touch groove, 507-touch pin, 508-fracture guide groove, 509-first spring, 510-locking pin, 511-second spring, 512-fastening point, 601-guide groove , 602-bead loading part, 603-core loading part, 604-ball groove, 605-fastening mouth, 701-inner clutch column, 702-spring cover, 703-third spring, 704-inner convex edge, 705-lock wheel pin, 801-locking mouth, 802-external connection mouth, 803-groove, 901-external clutch column, 902-clutch pin, 903-tab, 904-inner recess, 905-fourth spring, 906-upper through port, 907-lower through port, 908-fifth spring, 909-locking head, 910-external locking port, 911-horizontal port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-7 As shown, the present invention is a lock core that is resistant to violent destruction, comprising a lock housing, a dial wheel 1 and a clutch; The lock housing is composed of an intermediate housing 5 and two side housings 6. A dial opening 501 is provided in the middle of the intermediate housing 5. The dial opening 501 forms an inner sleeve 502 and an outer sleeve 503 on both sides of the intermediate housing 5. Guide pins 504 are provided on both sides of the intermediate housing 5. The two side shells 6 are symmetrically arranged at both ends of the middle shell 5. The inner side of the side shell 6 is provided with a guide groove 601, and the guide pin 504 is fixed in the guide groove 601; An outer lock core 2 and an inner lock core 3 are respectively arranged in the housings 6 on both sides, and a plurality of pin mechanisms 4 are linearly arranged between the outer lock core 2 and the inner lock core 3 and the side housings 6. An outer connecting section 8 is movably connected to the inner end of the outer lock core 2. The outer connecting section 8 is arranged in the outer connecting sleeve 503. The outer connecting section 8 is connected to the end of the outer lock core 2 through a convex point mechanism. A locking port 801 and an outer connecting port 802 are arranged on the side surface of the outer connecting section 8. The middle shell 5 is provided with a through hole 505 facing the axis of the external sleeve 503, and a trigger groove 506 connected with the through hole 505 is provided on the side of the middle shell 5 close to the external sleeve 503. A trigger pin 507 is provided in the trigger groove 506, and a concave cavity is provided at one end of the trigger pin 507. A first spring 509 is provided in the concave cavity. The two ends of the trigger pin 507 are respectively fitted with the inner wall of the through hole 505 and the inner side of the side shell 6. A locking pin 510 is fixed to the end of the through hole 505 away from the external sleeve 503 through a second spring 511, and the locking pin 510 is located between the trigger pin 507 and the second spring 511. A cylindrical cavity 301 is provided at the inner end of the inner lock core 3, and an inner connection port 302 and a lock wheel port 303 are provided on the peripheral side surface of the inner end of the inner lock core 3; The clutch comprises an inner clutch part 7 and an outer clutch part 9, wherein the inner clutch part 7 comprises a spring cover 702, a third spring 703 and an inner clutch column 701 which are connected in sequence, the inner clutch part 7 is slidably arranged in the cylindrical cavity 301, the inner clutch column 701 is provided with an inner convex edge 704 which cooperates with the dial wheel 1 and the inner connection port 302 on the circumferential side surface, the inner clutch column 701 is provided with a preset port, a wheel lock pin 705 is slidably connected in the preset port, and the wheel lock pin 705 is linearly distributed with the wheel lock port 303; The outer clutch portion 9 comprises an outer clutch column 901, a clutch pin 902 and a tongue 903. A horizontal opening 911 is provided at the axis of the outer clutch column 901. An inner recess 904 is provided on the circumferential side of the outer clutch column 901. The tongue 903 is slidably arranged in the inner recess 904 and a fourth spring 905 is provided between the tongue 903 and the inner recess 904. An upper through opening 906 and a lower through opening 907 are provided on the tongue 903. One end of the clutch pin 902 passes through the external connecting section 8 and is fixedly connected to the inner end of the outer lock core 2. The other end of the clutch pin 902 passes through the horizontal opening 911 and the lower through opening 907. A locking head 909 is fixed in the upper through opening 906 by a fifth spring 908. An outer locking opening 910 communicating with the inner recess 904 is provided at one end of the outer clutch column 901 away from the clutch pin 902, and the locking head 909 is clearance-matched with the outer locking opening 910.

[0022] Among them, when the outer side of the lock core is violently damaged and pulled off, the side shell body 6 with the outer lock core 2, the outer lock core 2, the clutch pin 902 and the guide pin 504 of the intermediate shell 5 close to the outer lock core 2 are broken and detached, and the trigger pin 507 is not blocked by the side shell body 6. The first spring 509 pops the trigger pin 507 out of the trigger groove 506, and the locking pin 510 passes through the trigger pin 507 through the elastic force of the second spring 511 and is stuck in the locking mouth 801 of the external section 8. At this time, the external section 8 cannot rotate, and the corresponding dial 1 is locked.

[0023] Among them, when the outer side of the lock core is violently damaged and pulled off, accompanied by the breakage and separation of the outer lock core 2 and the side shell body 6, the clutch pin 902 is pulled out along with the outer lock core 2 to separate from the horizontal opening 911 and the lower opening 907, and the tongue 903 is completely retracted into the inner recess 904 through the fourth spring 905. When the upper opening 906 is concentric with the outer lock opening 910, the locking head 909 is extended out through the fifth spring 908 and stuck in the outer lock opening 910. At this time, the outer surface of the outer clutch column 901 is smooth and the connection with the dial wheel 1 is released. Even if the outer clutch part 9 rotates, it cannot drive the dial wheel 1 to rotate.

[0024] Among them, when the outer side of the lock core is violently damaged and pulled off, along with the clutch pin 902 being pulled out, a clearance space is formed between the inner clutch part 7 and the external section 8, and the elastic force of the third spring 703 pushes the inner clutch column 701 and the outer clutch column 901 to move toward the external section 8. When the lock wheel pin 705 moves to the lock wheel opening 303 position, it falls into the lock wheel opening 303 due to gravity, prompting the outer clutch column 901 to move away from the dial wheel 1. The dial wheel 1 is connected to the inner lock core 3 through the inner clutch part 7, and the outer clutch part 9 has no interference with the dial wheel 1.

[0025] Among them Figure 1-4 As shown, the side shell 6 is composed of a bead loading part 602 and a core loading part 603 . The bead loading part 602 is provided with a plurality of pin grooves 604 connected with the core loading part 603 . The guide groove 601 is arranged at the edge of the bead loading part 602 and away from the pin mechanism 4 .

[0026] Among them Figure 1-2 and Figure 4 As shown, keyholes are provided on the inner lock core 3 and the outer lock core 2, and a plurality of bullet openings connected to the keyholes are linearly provided on the side surfaces of the inner lock core 3 and the outer lock core 2. The plurality of bullet openings are respectively opposite to the plurality of ball grooves 604, and the ball mechanism 4 is installed in the bullet openings and the ball grooves 604.

[0027] Among them Figure 1-4 As shown, a group of fastening openings 605 connected to the guide groove 601 are provided on both sides of the bead loading portion 602, a fastening point 512 opposite to the fastening opening 605 is provided on the guide pin 504, a fastening screw is provided in the fastening opening 605, and the inner end surface of the fastening screw extends into the fastening point 512 of the guide pin 504.

[0028] Among them Figure 1-3 As shown, the guide pin 504 is integrally formed with the intermediate shell 5 , and a fracture guide groove 508 is provided on the peripheral side surface of one end of the guide pin 504 close to the outer lock cylinder 2 and close to the intermediate shell 5 .

[0029] Among them Figure 3 As shown, a group of grooves 803 are provided on the end surface of the external connection section 8 , and a protrusion that is loosely matched with the grooves 803 is provided on the end surface of the external lock core 2 .

[0030] The middle shell 5 is made of high-strength steel. The high-strength steel can improve the anti-drilling ability of the middle shell 5 and avoid damage caused by tools such as drill bits.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A lock core that is resistant to violent destruction, comprising a lock housing, a dial (1) and a clutch, characterized in that: The lock housing is composed of a middle housing (5) and two side housings (6); A thumbwheel opening (501) is provided in the middle of the intermediate shell (5), an inner sleeve (502) and an outer sleeve (503) are provided on both sides of the intermediate shell (5), and guide pins (504) are provided on both sides of the intermediate shell (5); The two side shells (6) are symmetrically arranged at two ends of the middle shell (5); the inner side surfaces of the side shells (6) are provided with guide grooves (601), and the guide pins (504) are fixed in the guide grooves (601); An outer lock core (2) and an inner lock core (3) are respectively provided in the two side shells (6); the inner end of the outer lock core (2) is movably connected to an outer connecting section (8); the outer connecting section (8) is arranged in an outer connecting sleeve (503) and connected to the end of the outer lock core (2); a locking opening (801) and an outer connecting opening (802) are provided on the side surface of the outer connecting section (8); The intermediate shell (5) is provided with a through opening (505) facing the axis of the external sleeve (503); the intermediate shell (5) is provided with a trigger groove (506) communicating with the through opening (505); a trigger pin (507) is connected to the trigger groove (506) via a first spring (509); the trigger pin (507) is located between the through opening (505) and the side shell (6); a locking pin (510) is fixed to the through opening (505) via a second spring (511); the top end of the locking pin (510) contacts the trigger pin (507); The inner end of the inner lock core (3) is provided with a cylindrical cavity (301), and the circumferential side surface of the inner end of the inner lock core (3) is provided with an inner connection port (302) and a lock wheel port (303); The clutch comprises an inner clutch part (7) and an outer clutch part (9), wherein the inner clutch part (7) is composed of a spring cover (702) slidably arranged in a cylindrical cavity (301), a third spring (703) and an inner clutch column (701), wherein the circumferential side of the inner clutch column (701) is provided with an inner convex edge (704) cooperating with the dial wheel (1) and the inner connection port (302), and a wheel lock pin (705) is embedded in and slidably connected to the inner clutch column (701), and the wheel lock pin (705) is linearly distributed with the wheel lock port (303); The external clutch portion (9) comprises an external clutch column (901), a clutch pin (902) and a tongue (903); a transverse opening (911) is provided at the axis of the external clutch column (901); an inner recess (904) is provided on the external clutch column (901); the tongue (903) is slidably arranged in the inner recess (904) via a fourth spring (905); and an upper opening (906) and a lower opening are provided on the tongue (903). (907), one end of the clutch pin (902) passes through the external connection section (8) and is connected to the inner end surface of the outer lock core (2), the other end of the clutch pin (902) passes through the horizontal opening (911) and the lower opening (907), a locking head (909) is fixed in the upper opening (906) via a fifth spring (908), and an outer locking opening (910) that is clearance-matched with the outer locking opening (910) is provided on the outer clutch column (901).

2. A lock core that is resistant to violent destruction according to claim 1, characterized in that: When the outer side of the lock core is violently damaged and pulled off, the side shell (6) with the outer lock core (2), the outer lock core (2), the clutch pin (902) and the guide pin (504) of the intermediate shell (5) close to the outer lock core (2) are broken and separated, and the trigger pin (507) is not blocked by the side shell (6). The first spring (509) pops the trigger pin (507) out of the trigger groove (506), and the locking pin (510) passes through the trigger pin (507) through the elastic force of the second spring (511) and is stuck in the locking opening (801) of the external section (8). At this time, the external section (8) cannot rotate and the corresponding dial (1) is locked.

3. The anti-violent destruction lock core according to claim 2, characterized in that: When the outer side of the lock core is violently damaged and pulled off, along with the breaking and separation of the outer lock core (2) and the side shell (6), the clutch pin (902) is pulled out along with the outer lock core (2) to separate from the horizontal opening (911) and the lower opening (907), and the tongue (903) is completely retracted into the inner recess (904) through the fourth spring (905). When the upper opening (906) is concentric with the outer lock opening (910), the locking head (909) is extended through the fifth spring (908) and stuck in the outer lock opening (910). At this time, the outer surface of the outer clutch column (901) is smooth and the connection with the dial wheel (1) is released. Even if the outer clutch part (9) rotates, it cannot drive the dial wheel (1) to rotate.

4. A lock core resistant to violent destruction according to claim 3, characterized in that: When the outer side of the lock core is violently broken and pulled off, the clutch pin (902) is pulled out, and a clearance space is formed between the inner clutch part (7) and the outer connecting section (8). The elastic force of the third spring (703) pushes the inner clutch column (701) and the outer clutch column (901) to move toward the outer connecting section (8). When the lock wheel pin (705) moves to the lock wheel opening (303), it falls into the lock wheel opening (303) due to gravity, causing the outer clutch column (901) to move away from the dial wheel (1). The dial wheel (1) is connected to the inner lock core (3) through the inner clutch part (7), and the outer clutch part (9) has no interference with the dial wheel (1).

5. The anti-violent destruction lock cylinder according to claim 1, characterized in that: A plurality of pin mechanisms (4) are linearly arranged between the outer lock core (2) and the inner lock core (3) and the side housing (6); the side housing (6) is composed of a bead loading portion (602) and a core loading portion (603); the bead loading portion (602) is provided with a plurality of pin grooves (604) connected to the core loading portion (603); and the guide groove (601) is arranged at the edge of the bead loading portion (602) and away from the pin mechanism (4).

6. The anti-violent destruction lock core according to claim 5, characterized in that: The inner lock core (3) and the outer lock core (2) are both provided with a keyhole, and the inner lock core (3) and the outer lock core (2) are both linearly provided with a plurality of bullet openings connected to the keyhole on the peripheral side surfaces, the plurality of bullet openings are respectively opposite to a plurality of ball grooves (604), and the ball mechanism (4) is installed in the bullet openings and the ball grooves (604).

7. The anti-violent destruction lock cylinder according to claim 1, characterized in that: A group of fastening openings (605) communicating with the guide groove (601) are provided on both sides of the bead loading portion (602); a fastening point (512) opposite to the fastening opening (605) is provided on the guide pin (504); a fastening screw is provided in the fastening opening (605); and the inner end surface of the fastening screw extends into the fastening point (512) of the guide pin (504).

8. The anti-violent destruction lock core according to claim 7, characterized in that: The guide pin (504) is integrally formed with the intermediate shell (5), and a fracture guide groove (508) is provided on the peripheral side surface of one end of the guide pin (504) close to the outer lock core (2) and close to the intermediate shell (5).

9. The anti-violent destruction lock cylinder according to claim 1, characterized in that: The end surface of the external connection section (8) is provided with a group of grooves (803), and the end surface of the external lock core (2) is provided with a protrusion that is clearance-matched with the grooves (803).

10. The anti-violent destruction lock cylinder according to claim 1, characterized in that: The intermediate shell (5) is made of high-strength steel.

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