Linkage control structure of pick-proof lock and pick-proof lock

Abstract

The invention provides a linkage control structure of a pick-proof lock and the pick-proof lock. Belongs to the technical field of anti-theft locks. The linkage control structure of the pick-proof lock comprises a first lock cylinder, a second lock cylinder and a pick-proof mechanism arranged in the first lock cylinder, the pick-proof mechanism comprises a lock plate, a locking assembly, an unlocking assembly and a supporting assembly, the lock plate is slidably connected to the interior of the first lock cylinder, and the lock plate can move in the axial direction of the first lock cylinder and is in inserted fit with the second lock cylinder; the locking assembly is arranged in the first lock cylinder and used for locking the lock plate, the unlocking assembly is matched with the locking assembly to unlock the lock plate, and the supporting assembly is matched with the unlocking assembly to drive the unlocking assembly to act. According to the linkage control structure of the anti-picking lock and the anti-picking lock, the locking reliability and the anti-picking and anti-theft performance of the door lock under the abnormal prying working condition can be improved.

Description

Technical Field

[0001] This invention belongs to the field of anti-theft lock technology, and in particular relates to a linkage control structure for an anti-pry lock and an anti-pry lock. Background Technology

[0002] Door locks are widely used in residential entrance doors, apartment doors, office entrances, and enclosed spaces such as storage cabinets and filing cabinets. They are one of the most common basic components in the security hardware industry. They primarily control the opening and closing of doors or cabinets through the interaction of a key, lock cylinder, and bolt, thus providing daily protection for property, personal safety, and privacy within the space. In long-term use, door locks not only serve as physical barriers but also directly affect ease of use, lifespan, and adaptability to various scenarios.

[0003] In practical use, door locks typically face the effects of frequent opening and closing, long-term wear and tear, external impacts, and complex human contact. Especially in residential areas, rental properties, and some public areas, door locks, in addition to their normal opening and closing functions, also need to have good resistance to abnormal opening. If the lock is still prone to internal transmission instability, locking failure, or abnormal bolt movement under force, twisting, or prying, it will lead to a decrease in protection reliability and affect the user's basic security needs.

[0004] To address the above issues, existing door locks typically employ a key insertion method that directly drives an internal dial or corresponding transmission component within the lock cylinder. This transmission component then moves the bolt to complete the locking and unlocking operations. This type of solution has a relatively straightforward structure, mature manufacturing and assembly methods, and can meet basic usage requirements in typical home and general security scenarios, thus its application is widespread in the current market.

[0005] However, in some usage scenarios with high requirements for anti-pry and anti-theft performance, existing door lock solutions still have certain limitations. First, under abnormal external forces, the stability of the internal transmission relationship and the reliability of locking are easily affected. Second, when faced with abnormal contact, continuous prying, or forced force, the overall resistance of the lock to damage still has room for improvement. As a result, door locks still have shortcomings in terms of continuous security protection, ability to prevent abnormal opening, and actual performance. Summary of the Invention

[0006] The purpose of this invention is to provide a linkage control structure and anti-pry lock for an anti-pry lock, which can improve the locking reliability and anti-pry and anti-theft performance of the door lock under abnormal prying conditions.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a linkage control structure for an anti-pry lock, comprising: a first lock cylinder (101), a second lock cylinder (102), and an anti-pry mechanism (3) disposed within the first lock cylinder (101). The anti-pry mechanism (3) comprises a lock plate (31), a locking component (36), an unlocking component (37), and a support component (38). The lock plate (31) is slidably connected to the interior of the first lock cylinder (101), and the lock plate (31) is movable along the axial direction of the first lock cylinder (101) and is engaged with the second lock cylinder (102). The locking component (36) is disposed within the first lock cylinder (101) and is used to lock the lock plate (31). The unlocking component (37) cooperates with the locking component (36) to release the locking of the lock plate (31). The support component (38) cooperates with the unlocking component (37) to drive the unlocking component (37) to move. Under the action of the external driving component, the support component (38) drives the unlocking component (37) to move, so that the locking component (36) releases the locking plate (31) and moves the locking plate (31) along the axial direction of the first lock cylinder (101) to the inside of the second lock cylinder (102), so as to establish a transmission connection between the first lock cylinder (101) and the second lock cylinder (102), so that the movement of the first lock cylinder (101) can be transmitted to the second lock cylinder (102) through the locking plate (31). When the linkage control structure is not unlocked using a matching external drive, the locking assembly maintains the locking state of the locking plate (31) so that the locking plate (31) cannot move into the interior of the second lock cylinder (102) and cannot establish a transmission connection between the first lock cylinder (101) and the second lock cylinder (102).

[0008] Furthermore, a support block (32) is fixedly installed on one side of the lock plate (31), and a support groove (33) is opened inside the first lock cylinder (101), with the support block (32) slidably connected inside the support groove (33); A support rod (35) is fixedly connected inside the support groove (33). A support block (32) is slidably sleeved on the surface of the support rod (35). A first spring (34) is slidably sleeved on the surface of the support rod (35). One end of the first spring (34) is fixedly connected to the surface of the support block (32), and the other end of the first spring (34) is fixedly connected to the inner wall of the support groove (33).

[0009] Furthermore, the locking assembly (36) includes a groove (3601) formed inside the first lock cylinder (101), a second spring (3602) is fixedly connected inside the groove (3601), and a latch (3603) is fixedly connected to one end of the second spring (3602). One end of the locking block (3603) passes through the groove (3601) and is slidably connected to the inner cavity of the groove (3601). The other side of the locking plate (31) is provided with a slot (3604). The surface of the locking block (3603) is slidably connected to the inner cavity of the slot (3604) so ​​as to lock the position of the locking plate (31) by the cooperation of the locking block (3603) and the slot (3604).

[0010] Furthermore, a connecting rod (3605) is fixedly connected inside the groove (3601), and a connecting sleeve (3606) is fixedly connected to the side of the locking block (3603) opposite to the connecting rod (3605). The surface of the connecting rod (3605) is slidably connected to the inner cavity of the connecting sleeve (3606). The surfaces of the connecting rod (3605) and the connecting sleeve (3606) are slidably connected to the inner cavity of the second spring (3602). A connecting block (3607) is fixedly installed at one end of the connecting rod (3605), and the connecting block (3607) is slidably connected inside the connecting sleeve (3606).

[0011] Furthermore, the unlocking component (37) includes a groove (3701) formed inside the first lock cylinder (101), the groove (3701) is connected to the groove (3601), and a slide plate (3702) is slidably connected inside the groove (3701). The surface of the card block (3603) has an opening (3703). The slide plate (3702) is used in conjunction with the opening (3703). The support component (38) is located on one side of the slide plate (3702) and is used in conjunction with the external drive component. Under the action of the external drive component, the slide plate (3702) is driven to extend into the opening (3703) and push the card block (3603) to move into the groove (3601), so that the card block (3603) is separated from the card slot (3604).

[0012] Furthermore, a limiting block (3704) is fixedly installed on the surface of the slide plate (3702), and a limiting groove (3705) is opened inside the slide groove (3701). The limiting block (3704) is slidably connected inside the limiting groove (3705). A positioning rod (3707) is fixedly installed inside the limiting groove (3705). The limiting block (3704) is slidably sleeved on the surface of the positioning rod (3707). A return spring (3706) is slidably sleeved on the surface of the positioning rod (3707). One end of the return spring (3706) is fixedly connected to the surface of the limiting block (3704), and the other end of the return spring (3706) is fixedly connected to the inner wall of the limiting groove (3705).

[0013] Furthermore, the support assembly (38) includes a support spring (3801), which is fixedly connected to one side of the slide plate (3702). One end of the support spring (3801) is fixedly connected to a top block (3802), which is slidably connected inside the slide groove (3701). A push block (3803) is fixedly mounted on the surface of the external drive component, and the push block (3803) works in conjunction with the top block (3802).

[0014] Furthermore, a limiting rod (3804) is fixedly connected to one side of the slide plate (3702). One end of the limiting rod (3804) passes through the support spring (3801) and the top block (3802). The surface of the limiting rod (3804) is slidably connected to the inner cavity of the support spring (3801) and the top block (3802).

[0015] Furthermore, the strength of the support spring (3801) is greater than that of the return spring (3706) and the second spring (3602), so that when the external drive is inserted into the first lock cylinder (101), the push block (3803) pushes the top block (3802), and the support spring (3801) drives the slide plate (3702) to move, so that the slide plate (3702) pushes the locking block (3603) to separate from the locking groove (3604), thereby causing the external drive to push the lock plate (31) to be inserted into the interior of the second lock cylinder (102).

[0016] In a second aspect, the present invention provides an anti-pry lock, including a lock frame (1), a key (2), a bolt (4) and an anti-pry lock linkage control structure, wherein a first lock cylinder (101) and a second lock cylinder (102) are disposed in the lock frame (1), the bolt (4) is fixedly sleeved on the surface of the second lock cylinder (102), and the key (2) constitutes an external driving component.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The anti-pry lock linkage control structure and anti-pry lock provided by the present invention, by setting a first lock cylinder, a second lock cylinder and an anti-pry mechanism located in the first lock cylinder, and making the lock plate, locking component, unlocking component and support component in the anti-pry mechanism cooperate with each other, can first release the lock plate when using a matching key, and then move the lock plate into the second lock cylinder, thereby establishing a transmission connection between the first lock cylinder and the second lock cylinder, so that the movement of the first lock cylinder is transmitted to the second lock cylinder through the lock plate, and further drives the bolt to move; when unlocking is not done using a matching key, the lock plate cannot enter the second lock cylinder and the transmission connection cannot be established, thereby improving the locking reliability of the door lock and its anti-pry and anti-theft performance.

[0018] 2. The linkage control structure and anti-pry lock provided by the present invention guide, support and reset the movement of the lock plate by setting a support block, support groove, support rod and first spring, and by setting a groove, second spring, locking block, locking groove and connecting rod, connecting sleeve and connecting block, the locking block can stably cooperate with the locking groove to lock the lock plate, while ensuring the movement stability and reset reliability of the locking block during the unlocking process, thereby improving the smoothness of the lock plate movement process, the reliability of the locking process and the overall structural stability.

[0019] 3. The linkage control structure and anti-pry lock provided by the present invention, by setting a sliding groove, a sliding plate, an opening, a limiting block, a limiting groove, a positioning rod, a return spring, a support spring, a top block, a push block, and a limiting rod, and setting the strength of the support spring to be greater than that of the return spring and the second spring, can ensure that after the key is inserted, the sliding plate is driven first to move and push the card block out of the card slot, and then push the lock plate to insert into the second lock cylinder. This results in a better sequence and coordination between the unlocking action, the transmission establishment action, and the subsequent reset action, thereby improving the smoothness of the unlocking process, the coordination of the structural action, and the overall performance of the anti-pry lock. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the anti-pry lock according to an embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the anti-pry lock according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the linkage control structure of the anti-pry lock according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cooperative structure of the slide plate, locking block, and support components of the anti-pry lock according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the mating structure of the locking block, connecting sleeve, and connecting rod of the anti-pry lock according to an embodiment of the present invention. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0022] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0023] Example 1 like Figures 1 to 5 As shown, this embodiment provides a linkage control structure for an anti-pry lock. This linkage control structure establishes a transmission connection between the first lock cylinder (101) and the second lock cylinder (102) under legal unlocking conditions, and maintains the locked state when legal unlocking conditions are not met, thereby improving anti-pry and anti-theft performance. It should be noted that in this embodiment, the aforementioned external driving component is specifically a key (2).

[0024] like Figure 2 and Figure 3 As shown, the linkage control structure of the anti-pry lock in this embodiment includes a first lock cylinder (101), a second lock cylinder (102), and an anti-pry mechanism (3) disposed in the first lock cylinder (101). The anti-pry mechanism (3) includes a lock plate (31), a locking component (36), an unlocking component (37), and a support component (38). The lock plate (31) is slidably connected inside the first lock cylinder (101), and the lock plate (31) can move along the axial direction of the first lock cylinder (101) and be inserted into the second lock cylinder (102). The locking component (36) is disposed in the first lock cylinder (101) and is used to lock the lock plate (31). The unlocking component (37) cooperates with the locking component (36) to release the lock plate (31). The support component (38) cooperates with the unlocking component (37) to drive the unlocking component (37) to move.

[0025] Under the action of the external driving component, the support component (38) drives the unlocking component (37) to move, so that the locking component (36) releases the locking plate (31) and moves the locking plate (31) along the axial direction of the first lock cylinder (101) to the inside of the second lock cylinder (102), so as to establish a transmission connection between the first lock cylinder (101) and the second lock cylinder (102), so that the movement of the first lock cylinder (101) can be transmitted to the second lock cylinder (102) through the locking plate (31).

[0026] When the linkage control structure is not unlocked using a matching external drive, the locking assembly maintains the locking state of the locking plate (31) so that the locking plate (31) cannot move into the interior of the second lock cylinder (102) and cannot establish a transmission connection between the first lock cylinder (101) and the second lock cylinder (102).

[0027] like Figure 3As shown, a support block (32) is fixedly installed on one side of the lock plate (31), and a support groove (33) is opened inside the first lock cylinder (101). The support block (32) is slidably connected inside the support groove (33). A support rod (35) is fixedly connected inside the support groove (33). The support block (32) is slidably sleeved on the surface of the support rod (35). A first spring (34) is slidably sleeved on the surface of the support rod (35). One end of the first spring (34) is fixedly connected to the surface of the support block (32), and the other end of the first spring (34) is fixedly connected to the inner wall of the support groove (33).

[0028] In this embodiment, the cooperation between the support block (32) and the support groove (33) is used to guide the axial movement of the lock plate (31), and the cooperation between the support rod (35) and the first spring (34) is used to provide elastic support for the movement of the lock plate (31) and to help the lock plate (31) reset after the key (2) is removed.

[0029] like Figure 2 and Figure 3 As shown, the locking assembly (36) includes a groove (3601) formed inside the first lock cylinder (101), a second spring (3602) is fixedly connected inside the groove (3601), and a locking block (3603) is fixedly connected to one end of the second spring (3602); one end of the locking block (3603) passes through the groove (3601) and is slidably connected to the inner cavity of the groove (3601), and a slot (3604) is formed on the other side of the lock plate (31), and the surface of the locking block (3603) is slidably connected to the inner cavity of the slot (3604) so ​​as to lock the position of the lock plate (31) by the cooperation of the locking block (3603) and the slot (3604).

[0030] In this embodiment, the second spring (3602) provides elastic support to the locking block (3603), so that one end of the locking block (3603) can be inserted into the slot (3604) to lock the locking plate (31) and prevent the locking plate (31) from malfunctioning and causing maloperation to the second lock cylinder (102).

[0031] like Figure 3 and Figure 5 As shown, a connecting rod (3605) is fixedly connected inside the groove (3601), and a connecting sleeve (3606) is fixedly connected to the side of the locking block (3603) opposite to the connecting rod (3605). The surface of the connecting rod (3605) is slidably connected to the inner cavity of the connecting sleeve (3606). The surfaces of both the connecting rod (3605) and the connecting sleeve (3606) are slidably connected to the inner cavity of the second spring (3602). A connecting block (3607) is fixedly installed at one end of the connecting rod (3605), and the connecting block (3607) is slidably connected inside the connecting sleeve (3606).

[0032] In this embodiment, the connection between the connecting rod (3605) and the connecting sleeve (3606) is used to stabilize the position of the second spring (3602) and prevent the second spring (3602) from being significantly twisted or deformed.

[0033] The connecting block (3607) is used to limit the range of movement of the connecting sleeve (3606) relative to the connecting rod (3605) to prevent the jamming block (3603) from moving too much. Here, the term "connecting block (3607)" is used consistently, and is related to... Figure 5 correspond.

[0034] like Figure 3 and Figure 4 As shown, the unlocking component (37) includes a groove (3701) opened inside the first lock cylinder (101), the groove (3701) is connected to the groove (3601), and a sliding plate (3702) is slidably connected inside the groove (3701); the surface of the block (3603) has an opening (3703), the sliding plate (3702) is used in conjunction with the opening (3703), the support component (38) is set on one side of the sliding plate (3702), and the support component (38) is used in conjunction with the external drive component, so that under the action of the external drive component, the sliding plate (3702) is driven to extend into the opening (3703) and push the block (3603) to move into the groove (3601), so that the block (3603) is separated from the groove (3604).

[0035] In this embodiment, when the key (2) moves the slide plate (3702) through the support component (38), the slide plate (3702) extends into the interior of the opening (3703) and squeezes the locking block (3603) through the opening (3703), causing the locking block (3603) to move into the interior of the groove (3601), so that the locking block (3603) separates from the slot (3604), thereby unlocking the lock plate (31).

[0036] like Figure 3 As shown, a limiting block (3704) is fixedly installed on the surface of the slide (3702), and a limiting groove (3705) is opened inside the slide (3701). The limiting block (3704) is slidably connected inside the limiting groove (3705).

[0037] A positioning rod (3707) is fixedly installed inside the limiting groove (3705). A limiting block (3704) is slidably sleeved on the surface of the positioning rod (3707). A return spring (3706) is slidably sleeved on the surface of the positioning rod (3707). One end of the return spring (3706) is fixedly connected to the surface of the limiting block (3704), and the other end of the return spring (3706) is fixedly connected to the inner wall of the limiting groove (3705).

[0038] In this embodiment, the cooperation between the limiting block (3704) and the limiting groove (3705) is used to limit the movement of the slide plate (3702), and the positioning rod (3707) is used to stabilize the position of the reset spring (3706). The reset spring (3706) supports and resets the slide plate (3702) through the limiting block (3704) to avoid the slide plate (3702) from moving and causing adverse effects on the position of the locking block (3603).

[0039] like Figure 3 and Figure 4 As shown, the support assembly (38) includes a support spring (3801), which is fixedly connected to one side of the slide plate (3702). One end of the support spring (3801) is fixedly connected to a top block (3802), which is slidably connected to the inside of the slide groove (3701). A push block (3803) is fixedly installed on the surface of the external drive component, and the push block (3803) works in conjunction with the top block (3802).

[0040] In this embodiment, the external driving component is a key (2), and the push block (3803) is fixedly disposed on the surface of the key (2). When the key (2) is inserted into the first lock cylinder (101), the key (2) pushes the top block (3802) through the push block (3803), and the push block (3803) then pushes the slide plate (3702) through the support spring (3801).

[0041] like Figure 3 and Figure 4 As shown, a limiting rod (3804) is fixedly connected to one side of the slide plate (3702). One end of the limiting rod (3804) passes through the support spring (3801) and the top block (3802). The surface of the limiting rod (3804) is slidably connected to the inner cavity of the support spring (3801) and the top block (3802).

[0042] In this embodiment, the limiting rod (3804) is used to stabilize the position of the support spring (3801) and the top block (3802) so that when the push block (3803) pushes the top block (3802), the support spring (3801) can maintain a relatively stable force state.

[0043] like Figure 3 and Figure 4 As shown, the strength of the support spring (3801) is greater than that of the return spring (3706) and the second spring (3602), so that when the external drive is inserted into the first lock cylinder (101), the push block (3803) pushes the top block (3802), and drives the slide plate (3702) to move through the support spring (3801), so that the slide plate (3702) pushes the locking block (3603) to separate from the locking groove (3604), thereby causing the external drive to push the lock plate (31) to be inserted into the interior of the second lock cylinder (102).

[0044] In this embodiment, by setting the strength of the support spring (3801) to be greater than that of the return spring (3706) and the second spring (3602), it can be ensured that when the key (2) is inserted, the sliding plate (3702) is driven to move first, so that the locking block (3603) is separated from the slot (3604) first, and then the key (2) pushes the lock plate (31) to be inserted into the interior of the second lock cylinder (102).

[0045] The working principle of the linkage control structure of the anti-pry lock provided in this embodiment is as follows: When unlocking is required, the key (2) is inserted into the first lock cylinder (101). The key (2) pushes the top block (3802) through the push block (3803) and stabilizes the position of the support spring (3801) through the limit rod (3804), so that the push block (3803) pushes the slide plate (3702) through the support spring (3801); the slide plate (3702) pushes the locking block (3603) through the opening (3703), so that the locking block (3603) moves into the groove (3601). The key (2) pushes the lock plate (31) to move along the axial direction of the first lock cylinder (101), so that one end of the lock plate (31) is inserted into the interior of the second lock cylinder (102); then the key (2) is turned, and the key (2) drives the lock plate (31) to move through the first lock cylinder (101), and the lock plate (31) drives the second lock cylinder (102) to move, thereby establishing the transmission connection between the first lock cylinder (101) and the second lock cylinder (102).

[0046] When the key (2) is removed, the position of the first spring (34) is stabilized by the support rod (35). The first spring (34) supports the support block (32) so that the support block (32) drives the lock plate (31) to reset. After the key (2) is completely removed, the position of the reset spring (3706) and the limit block (3704) is stabilized by the positioning rod (3707) so that the reset spring (3706) drives the slide plate (3702) to reset through the limit block (3704). After the slide plate (3702) separates from the opening (3703), the position of the second spring (3602) is stabilized by the connecting rod (3605) and the connecting sleeve (3606) so that the second spring (3602) drives the locking block (3603) to reset and insert into the slot (3604) so ​​that the lock plate (31) is locked again. Therefore, when the matching key (2) is not used to unlock, the lock plate (31) cannot move into the interior of the second lock cylinder (102), and thus cannot establish a transmission connection between the first lock cylinder (101) and the second lock cylinder (102), so the position of the lock tongue (4) cannot be adjusted to unlock, thus achieving the anti-pry and anti-theft effect.

[0047] The anti-pry lock linkage control structure provided by this invention, by setting a linkage anti-pry structure consisting of a lock plate, a locking component, an unlocking component, and a support component between the first lock cylinder and the second lock cylinder, enables the lock plate to be unlocked first after the key is inserted, and then the lock plate enters the second lock cylinder to establish a transmission connection, thereby driving the bolt to move; at the same time, when no matching key is used, the lock plate remains locked and cannot enter the second lock cylinder to establish a transmission connection, thereby effectively blocking abnormal prying, and has the advantages of stable structural fit, clear unlocking sequence, reliable reset, and good anti-pry and anti-theft performance.

[0048] Example 2 like Figure 1 and Figure 2 As shown, this embodiment provides an anti-pry lock. This anti-pry lock is an overall structure formed based on the linkage control structure of the anti-pry lock provided in Embodiment 1.

[0049] The anti-pry lock provided in this embodiment includes: a lock frame (1), a key (2), a lock tongue (4), and a linkage control structure of the anti-pry lock as in embodiment 1. The first lock cylinder (101) and the second lock cylinder (102) are disposed in the lock frame (1), the lock tongue (4) is fixedly sleeved on the surface of the second lock cylinder (102), and the key (2) constitutes an external driving component.

[0050] In this embodiment, the lock frame (1) serves as an integral mounting support, the first lock cylinder (101) and the second lock cylinder (102) are installed inside the lock frame (1), the lock tongue (4) is fixedly sleeved on the surface of the second lock cylinder (102), and the key (2) is used to insert into the first lock cylinder (101) and to trigger the unlocking and linkage action in Embodiment 1 as an external driving component.

[0051] When the key (2) is inserted into the first lock cylinder (101) and the lock plate (31) is unlocked, the lock plate (31) is inserted into the second lock cylinder (102). Then the movement of the first lock cylinder (101) is transmitted to the second lock cylinder (102) through the lock plate (31), and the second lock cylinder (102) drives the bolt (4) to move, thereby realizing the locking or unlocking of the entire lock.

[0052] When the matching key (2) is not used, the lock plate (31) remains locked by the locking component (36), and the lock plate (31) cannot enter the second lock cylinder (102). Therefore, the transmission link from the first lock cylinder (101) to the second lock cylinder (102) cannot be formed, and the lock tongue (4) cannot be driven by abnormal prying, thereby improving the anti-pry and anti-theft performance of the whole machine.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A linkage control structure for an anti-pry lock, characterized in that, include: The system comprises a first lock cylinder (101), a second lock cylinder (102), and an anti-pry mechanism (3) disposed within the first lock cylinder (101). The anti-pry mechanism (3) includes a lock plate (31), a locking component (36), an unlocking component (37), and a support component (38). The lock plate (31) is slidably connected inside the first lock cylinder (101) and can move along the axial direction of the first lock cylinder (101) and engage with the second lock cylinder (102). The locking component (36) is disposed within the first lock cylinder (101) and is used to lock the lock plate (31). The unlocking component (37) cooperates with the locking component (36) to release the lock plate (31). The support component (38) cooperates with the unlocking component (37) to drive the unlocking component (37) to move. Under the action of the external driving component, the support component (38) drives the unlocking component (37) to move, so that the locking component (36) releases the locking plate (31) and moves the locking plate (31) along the axial direction of the first lock cylinder (101) to the inside of the second lock cylinder (102), so as to establish a transmission connection between the first lock cylinder (101) and the second lock cylinder (102), so that the movement of the first lock cylinder (101) can be transmitted to the second lock cylinder (102) via the locking plate (31). When the linkage control structure is not unlocked using a matching external drive, the locking assembly maintains the locking state of the lock plate (31) so that the lock plate (31) cannot move into the interior of the second lock cylinder (102) and cannot establish a transmission connection between the first lock cylinder (101) and the second lock cylinder (102).

2. The linkage control structure of the anti-pry lock according to claim 1, characterized in that, A support block (32) is fixedly installed on one side of the lock plate (31), and a support groove (33) is opened inside the first lock cylinder (101). The support block (32) is slidably connected inside the support groove (33). A support rod (35) is fixedly connected inside the support groove (33). The support block (32) is slidably sleeved on the surface of the support rod (35). A first spring (34) is slidably sleeved on the surface of the support rod (35). One end of the first spring (34) is fixedly connected to the surface of the support block (32), and the other end of the first spring (34) is fixedly connected to the inner wall of the support groove (33).

3. The linkage control structure of the anti-pry lock according to claim 1, characterized in that, The locking assembly (36) includes a groove (3601) formed inside the first lock cylinder (101), and a second spring (3602) is fixedly connected inside the groove (3601). A locking block (3603) is fixedly connected to one end of the second spring (3602). One end of the locking block (3603) passes through the groove (3601) and is slidably connected to the inner cavity of the groove (3601). The other side of the locking plate (31) is provided with a slot (3604). The surface of the locking block (3603) is slidably connected to the inner cavity of the slot (3604) so ​​as to lock the position of the locking plate (31) by the cooperation of the locking block (3603) and the slot (3604).

4. The linkage control structure of the anti-pry lock according to claim 3, characterized in that, A connecting rod (3605) is fixedly connected inside the groove (3601), and a connecting sleeve (3606) is fixedly connected to the side of the locking block (3603) opposite to the connecting rod (3605). The surface of the connecting rod (3605) is slidably connected to the inner cavity of the connecting sleeve (3606). The surfaces of the connecting rod (3605) and the connecting sleeve (3606) are slidably connected to the inner cavity of the second spring (3602). A connecting block (3607) is fixedly installed at one end of the connecting rod (3605), and the connecting block (3607) is slidably connected inside the connecting sleeve (3606).

5. The linkage control structure of the anti-pry lock according to claim 1, characterized in that, The unlocking component (37) includes a groove (3701) formed inside the first lock cylinder (101), the groove (3701) is connected to the groove (3601), and a sliding plate (3702) is slidably connected inside the groove (3701). The surface of the card block (3603) has an opening (3703). The slide plate (3702) is used in conjunction with the opening (3703). The support component (38) is disposed on one side of the slide plate (3702) and is used in conjunction with the external drive component. Under the action of the external drive component, the slide plate (3702) is driven to extend into the opening (3703) and push the card block (3603) to move into the interior of the groove (3601), so that the card block (3603) is separated from the card slot (3604).

6. The linkage control structure of the anti-pry lock according to claim 5, characterized in that, A limiting block (3704) is fixedly installed on the surface of the slide plate (3702). A limiting groove (3705) is opened inside the slide groove (3701). The limiting block (3704) is slidably connected inside the limiting groove (3705). A positioning rod (3707) is fixedly installed inside the limiting groove (3705). The limiting block (3704) is slidably sleeved on the surface of the positioning rod (3707). A return spring (3706) is slidably sleeved on the surface of the positioning rod (3707). One end of the return spring (3706) is fixedly connected to the surface of the limiting block (3704), and the other end of the return spring (3706) is fixedly connected to the inner wall of the limiting groove (3705).

7. The linkage control structure of the anti-pry lock according to claim 5, characterized in that, The support assembly (38) includes a support spring (3801), which is fixedly connected to one side of the slide plate (3702). One end of the support spring (3801) is fixedly connected to a top block (3802), which is slidably connected to the inside of the slide groove (3701). A push block (3803) is fixedly mounted on the surface of the external drive component, and the push block (3803) is used in conjunction with the top block (3802).

8. The linkage control structure of the anti-pry lock according to claim 7, characterized in that, A limiting rod (3804) is fixedly connected to one side of the sliding plate (3702). One end of the limiting rod (3804) passes through the support spring (3801) and the top block (3802). The surface of the limiting rod (3804) is slidably connected to the inner cavity of the support spring (3801) and the top block (3802).

9. The linkage control structure of the anti-pry lock according to claim 7 or 8, characterized in that, The strength of the support spring (3801) is greater than that of the return spring (3706) and the second spring (3602), so that when the external drive is inserted into the first lock cylinder (101), the push block (3803) pushes the top block (3802), and the support spring (3801) drives the slide plate (3702) to move, so that the slide plate (3702) pushes the locking block (3603) to separate from the locking groove (3604), thereby causing the external drive to push the lock plate (31) to be inserted into the interior of the second lock cylinder (102).

10. A tamper-proof lock, characterized in that, The lock includes a lock frame (1), a key (2), a bolt (4), and a linkage control structure for the anti-pry lock as described in any one of claims 1 to 9. The first lock cylinder (101) and the second lock cylinder (102) are disposed inside the lock frame (1), the bolt (4) is fixedly sleeved on the surface of the second lock cylinder (102), and the key (2) constitutes the external driving component.

Images