Unlocking structure of electronic lock

Abstract

The utility model relates to an unlocking structure of an electronic lock. The unlocking structure comprises a shell, a mechanical lock assembly penetrating through the front end face and the rear end face of the shell and an electronic lock assembly arranged in the shell. The electronic lock assembly is powered on to unlock or lock a lock shell of the mechanical lock assembly; the electronic lock assembly comprises an electronic module used for controlling a motor, and an output shaft of the motor stretches out or retracts towards one side of the mechanical lock assembly. The lock pin is driven by the output shaft of the motor and can be clamped into or withdrawn from the lock groove of the lock shell, so that the lock shell is locked and unlocked; a stroke block is further arranged between the lock pin and the motor, and the output shaft penetrates through the stroke block. The stroke block limits the telescopic stroke of the output shaft. Compared with the prior art, the stroke control device has the advantages that when the output shaft stretches out and draws back, the stop pin is driven to move between the two stop portions of the stroke block, when the stop pin touches one of the stop portions, the output shaft stops stretching out and drawing back, and therefore the stroke of the output shaft is accurately controlled.

Description

Technical Field

[0001] This utility model relates to the technical field of locks, and in particular to an unlocking mechanism for an electronic lock. Background Technology

[0002] With the continuous development of technology, electronic locks have been widely used in people's lives. As the core component of an electronic lock, the unlocking mechanism directly affects its security and reliability. Existing electronic lock unlocking mechanisms have some shortcomings in their structural design, such as insufficiently precise stroke control leading to unstable unlocking or locking actions; and insufficient smooth guidance and reset of the locking pin during movement, affecting the service life and stability of the entire unlocking mechanism. Therefore, a new electronic lock unlocking mechanism needs to be designed to solve these problems. Utility Model Content

[0003] In order to solve the above-mentioned problems in the prior art, the present invention provides an unlocking mechanism for an electronic lock.

[0004] The above-mentioned problems of this utility model are solved by the following technical solution:

[0005] An unlocking mechanism for an electronic lock includes a housing, a mechanical lock assembly extending through the front and rear ends of the housing, and an electronic lock assembly disposed inside the housing; the electronic lock assembly is energized to unlock or lock the lock housing of the mechanical lock assembly.

[0006] The electronic lock assembly includes an electronic module for controlling a motor, the output shaft of which extends or retracts toward the mechanical lock assembly.

[0007] It also includes a locking pin, which is driven by the output shaft of the motor and can engage or disengage from the locking groove of the lock housing, thereby achieving locking and unlocking of the lock housing;

[0008] A travel block is also provided between the locking pin and the motor, and the output shaft passes through the travel block; the travel block limits the extension and retraction of the output shaft.

[0009] A further provision of the above technical solution is that the stroke block has two stops in sequence in the extension and retraction direction of the output shaft, the output shaft passes through the stops, and the output shaft is provided with a stop pin that interferes with the stops, the stop pin being located between the two stops.

[0010] A further provision of the above technical solution is that the locking pin is provided with a guide component, the guide component including at least one guide post, the guide post being fixedly disposed inside the housing and having a pin hole capable of accommodating the movement of the locking pin.

[0011] A further provision of the above technical solution is as follows: the guide post is provided with a reset groove that connects with the pin hole, the outer periphery of the locking pin is provided with a limiting ring, a reset spring is sleeved on the locking pin and abuts against the limiting ring, and pushes the limiting ring toward the pin hole.

[0012] A further provision of the above technical solution is as follows: a fixing block is provided outside the guide post, the fixing block is hollow and has a guide groove, the guide groove is a cylindrical groove with an open rear end face, and the front end face of the guide groove has an avoidance hole that can accommodate the extension of the locking pin.

[0013] A further feature of the above technical solution is that the head of the guide post is configured as a frustum structure, which is contained within the guide groove, and the smaller diameter end faces the side of the clearance hole.

[0014] A further feature of the above technical solution is that the tail of the guide post is a cylinder with a diameter consistent with the inner diameter of the guide groove, and anti-slip texture is provided on the outer circumference.

[0015] A further provision of the above technical solution is that the interior of the outer casing is provided with a mounting groove for limiting the fixing block.

[0016] A further configuration of the above technical solution is as follows: the lock housing includes a rotating part and a locking part, the rotating part is located outside the outer shell and is held by a person for rotation; the locking part extends into the outer shell and the lock groove is located on the locking part.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. When the output shaft extends or retracts, it drives the stop pin to move between the two stops of the stroke block. When the stop pin touches one of the stops, the output shaft stops extending or retracting, thereby precisely controlling the stroke of the output shaft;

[0019] 2. The guide components have been redesigned for easier assembly. Attached Figure Description

[0020] Figure 1 This is an exploded structural diagram of the present invention.

[0021] Figure 2 This is a structural diagram of the motor and the stroke block.

[0022] Figure 3 This is a schematic diagram showing the structure of the stop pin at its furthest travel position.

[0023] Figure 4 This is a schematic diagram showing the structure of the stop pin at its closest travel position.

[0024] Figure 5 This is a schematic diagram of the exploded structure of the guide component.

[0025] Figure 6 This is a cross-sectional structural diagram of the guide component.

[0026] The attached diagram is labeled as follows: 100, panel; 101, limiting groove; 110, side wall; 120, stop rib.

[0027] 200. Base body;

[0028] 300. Mechanical lock assembly; 310. Lock housing; 320. Lock cylinder;

[0029] 400. Electronic lock assembly; 410. Electronic module; 420. Battery; 430. Motor; 431. Output shaft; 431.1. Stop pin; 440. Stroke block; 441. First stop; 442. Second stop; 443. Stop surface;

[0030] 600. Locking pin; 610. Limiting ring;

[0031] 500, guide assembly; 510, guide post; 511, reset groove; 520, reset spring; 530, fixing block; 531, clearance hole; 512, mating thread. Detailed Implementation

[0032] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0033] like Figure 1-6 As shown, this embodiment discloses an unlocking mechanism for an electronic lock.

[0034] An unlocking mechanism for an electronic lock includes a housing, a mechanical lock assembly 300 extending through the front and rear ends of the housing, and an electronic lock assembly 400 disposed inside the housing; the electronic lock assembly 400 is energized to unlock or lock the lock shell 310 of the mechanical lock assembly 300.

[0035] The electronic lock assembly 400 includes an electronic module 410 for controlling a motor 430, the output shaft 431 of which extends or retracts toward the mechanical lock side;

[0036] It also includes a locking pin 600, which is driven by the output shaft 431 of the motor 430 and can engage or disengage from the locking groove of the lock housing 310, thereby realizing the locking and unlocking of the lock housing 310.

[0037] A travel block 440 is also provided between the locking pin 600 and the motor 430, and the output shaft 431 passes through the travel block 440; the travel block 440 limits the extension and retraction of the output shaft 431.

[0038] The above is the basic scheme of this embodiment.

[0039] Specific reference Figure 1 As shown, the housing includes a panel 100 and a base 200, and the panel 100 and the base 200 are fitted together to form a housing with an inner cavity. The mechanical lock assembly 300 passes through the panel 100 and the base 200 in sequence. The keyhole on the mechanical lock assembly 300 is exposed on the panel 100, and the lock plate at the tail of the mechanical lock assembly 300 is exposed outside the base 200 for locking with the lock on the door cabinet.

[0040] The electronic lock is located in the inner cavity of the outer shell. The password input area of ​​the electronic module 410 is located inside the panel 100. When a password is entered on the panel 100, the electronic module 410 receives the password signal, controls the motor 430 to start, and drives the output shaft 431 of the motor 430 to extend or retract.

[0041] Preferably, in this embodiment, a battery 420 is provided inside the housing to supply power to the motor 430 and the electronic module 410;

[0042] In this embodiment, the electronic lock module locks the mechanical lock module as follows: the mechanical lock module includes a lock cylinder 320 and a lock housing 310. The blade inside the lock cylinder 320 can extend or retract. In the extended state, the lock cylinder 320 and the lock housing 310 are locked together. In the retracted state, the lock cylinder 320 and the lock housing 310 are unlocked together. The lock cylinder 320 can rotate relative to the lock housing 310. In this embodiment, a locking pin 600 is provided between the lock housing 310 and the output shaft 431 of the motor 430. The locking pin 600 can move towards the lock housing 310 under the pushing action of the output shaft 431. When the locking pin 600 is engaged in the lock groove of the lock housing 310, the lock housing 310 cannot move relative to the locking pin 600. Therefore, the lock housing 310 cannot rotate relative to the outer shell. In this state, the lock cylinder 320 needs to be unlocked using a key, causing relative rotation between the lock cylinder 320 and the lock shell 310. This rotation of the lock cylinder 320 will then drive the lock plate to unlock. When the locking pin 600 exits from the lock groove of the lock shell 310, the lock shell 310 can rotate relative to the locking pin 600. In other words, the lock shell 310 can rotate relative to the outer shell. At this time, the lock cylinder 320 is not unlocked. Rotating the entire mechanical lock will drive the lock plate to rotate and unlock.

[0043] In this embodiment, in order to limit the travel of the output shaft 431 of the motor 430 and prevent it from extending too far and blocking the locking pin 600, causing jamming when it retracts, a travel block 440 is provided between the locking pin 600 and the motor 430, and the output shaft 431 passes through the travel block 440; the travel block 440 limits the extension and retraction travel of the output shaft 431.

[0044] Specifically, the stroke block 440 has two stops in sequence in the extension and retraction direction of the output shaft 431. The output shaft 431 passes through the stops, and the output shaft 431 has a stop pin 431.1 that interferes with the stops. The stop pin 431.1 is located between the two stops.

[0045] Preferred options, please refer to the specific details. Figure 2 As shown, the stroke block 440 is configured as a housing or support structure with a stroke space. Two stops are arranged sequentially on the stroke block 440 along the extension and retraction direction of the output shaft 431. The stop closer to the mechanical lock assembly 300 is the first stop 441, and the stop closer to the motor 430 is the second stop 442. The stroke space is located between the first stop 441 and the second stop 442. The output shaft 431 passes through the first stop 441 and the second stop 442 in sequence.

[0046] In order to achieve the travel limit function of the stroke block 440 on the output shaft 431, a stop pin 431.1 is provided on the outer periphery of the output shaft 431, and the stop pin 431.1 cannot pass through the shaft hole of the first stop part 441 and the second stop part 442;

[0047] When the output shaft 431 extends, the stop pin 431.1 moves within its travel space. When the stop pin 431.1 moves to the rear of the first stop 441 and abuts against it, the output shaft 431 continues to extend. The stop pin 431.1 pushes the first stop 441 to move, and thus, the travel block 440 is also pushed towards the lock housing 310 until the travel block 440 is pushed to the first stop position. At this point, the stop pin 431.1 cannot move further due to the action of the first stop 441, and the output shaft 431 is at its furthest travel position. Figure 3 As shown;

[0048] When the output shaft 431 retracts, the stop pin 431.1 moves towards the motor 430 within its travel space. When it reaches the front of the second stop 442 and contacts it, the output shaft 431 continues to retract. The stop pin 431.1 pushes the second stop 442, causing the travel block 440 to also move towards the motor 430. This continues until the travel block 440 reaches the second stop position. At this point, the travel block 440 cannot move further, and the stop pin 431.1 cannot move further due to the action of the second stop 442. The output shaft 431 is then at its closest travel position. Figure 4 As shown.

[0049] Preferably, in this embodiment, the outer casing is provided with a limiting groove 101 for limiting the travel block 440. The limiting groove 101 is surrounded by two side walls 110 and a stop rib 120. The stop rib 120 is located near the lock housing 310. When the travel block 440 contacts the stop rib 120, it is in the first stop position; when the travel block 440 contacts the motor 430, it is in the second stop position.

[0050] Preferably, in this embodiment, the stroke block 440 is also provided with a stop surface 443, which is located on the front side of the first stop part 441, that is, on the side close to the lock housing 310. The stop surface 443 is provided with a guide hole that can accommodate the output shaft 431 extending out. When the stroke block 440 is in the first stop position, the stop surface 443 and the stop rib 120 are in contact.

[0051] In this embodiment, to ensure the movement position of the locking pin 600, a guide component 500 is provided on the locking pin 600. The guide component 500 includes at least one guide post 510, which is fixedly disposed inside the housing and is provided with a pin hole that can accommodate the movement of the locking pin 600.

[0052] Specific reference Figure 5 and Figure 6 As shown, the guide post 510 is fixed inside the housing, and the locking pin 600 is slidably disposed in the pin hole of the guide post 510, and can only slide along the axis of the pin hole within the pin hole.

[0053] When the output shaft 431 of the motor 430 retracts, the back of the locking pin 600 is no longer held, and a backward pushing force needs to be applied to the locking pin 600 to make the head of the locking pin 600 exit from the locking groove of the lock housing 310. In this embodiment, the guide post 510 is provided with a reset groove 511 that connects with the pin hole, and a limiting ring 610 is provided on the outer periphery of the locking pin 600. A reset spring 520 is sleeved on the locking pin 600 and abuts against the limiting ring 610, pushing the limiting ring 610 toward the pin hole.

[0054] Preferably, in this embodiment, the front end of the reset groove 511 is set as an opening for easy assembly.

[0055] The guide post 510 is also provided with a fixing block 530. The fixing block 530 is hollow and has a guide groove. The guide groove is a cylindrical groove with an opening at the rear end. The front end of the guide groove has an avoidance hole 531 that can accommodate the extension of the locking pin 600.

[0056] Specific reference Figure 5 and Figure 6 As shown, during assembly, the locking pin 600 is installed into the reset groove 511 through the opening at the front end of the guide post 510, and the reset spring 520 is sleeved on the front of the locking pin 600.

[0057] Then, the guide post 510 with the locking pin 600 is inserted into the guide groove from the rear end slot of the fixing block 530, and the guide post 510 and the inner wall of the guide groove are limited and fixed.

[0058] Based on the above configuration, the front end of the locking pin 600 can extend through the clearance hole 531 at the front end of the fixing block 530, while the front end of the return spring 520 abuts against the front end surface of the guide groove, and the rear end of the return spring 520 abuts against the limiting ring 610 of the locking pin 600, pushing the locking pin 600 backward.

[0059] Preferably, in this embodiment, the head of the guide post 510 is configured as a frustum structure, which is contained within the guide groove, and the smaller diameter end faces the side of the clearance hole 531.

[0060] Based on the above settings, the outer diameter of the head of the guide post 510 is smaller than the inner diameter of the guide groove in the fixing block 530, so that the guide post 510 can be smoothly inserted into the guide groove.

[0061] Furthermore, the tail of the guide post 510 is a cylinder with a diameter consistent with the inner diameter of the guide groove, and a mating texture 512 is provided on its outer circumference.

[0062] Preferably, the outer diameter of the tail of the guide post 510 is the same as the inner diameter of the guide groove. When the guide post 510 is inserted, an interference fit is formed between the tail and the guide groove, and the mating groove 512 is combined to increase the friction between the guide groove and the guide post 510, so that the guide post 510 will not easily slip out of the guide groove.

[0063] In this embodiment, the interior of the outer casing is provided with a mounting groove for limiting the fixing block 530.

[0064] Specifically, refer to Figure 3 and Figure 4 As shown, the mounting groove is formed by a stop rib 120 protruding from the panel 100.

[0065] In this embodiment, the lock housing 310 includes a rotating part and a locking part. The rotating part is located outside the housing and is held by a person for rotation. The locking part extends into the housing and the lock groove is located on the locking part.

[0066] The outer periphery of the rotating part is provided with anti-slip texture, the locking part is a ring structure, and the locking groove is a notch set on the ring structure.

[0067] In this embodiment, the structure of the mechanical lock is consistent with that of mechanical locks in the prior art, and will not be described in detail here.

[0068] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An unlocking structure for an electronic lock, comprising a housing, a mechanical lock assembly (300) penetrating the front and rear ends of the housing, and an electronic lock assembly (400) disposed inside the housing; wherein the electronic lock assembly (400) is energized to unlock or lock the lock shell of the mechanical lock assembly (300); Its features are: The electronic lock assembly (400) includes an electronic module (410) for controlling a motor (430), the output shaft (431) of which extends or retracts toward the mechanical lock assembly (300); It also includes a locking pin (600), which is driven by the output shaft (431) of the motor (430) and can engage or disengage from the locking groove of the lock housing (310), thereby realizing the locking and unlocking of the lock housing (310); A travel block (440) is also provided between the locking pin (600) and the motor (430), and the output shaft (431) passes through the travel block (440); the travel block (440) limits the extension and retraction of the output shaft (431).

2. The unlocking structure of an electronic lock according to claim 1, characterized in that: The stroke block (440) has two stops in sequence in the extension and retraction direction of the output shaft (431). The output shaft (431) passes through the stops, and the output shaft (431) has a stop pin (431.1) that interferes with the stops. The stop pin (431.1) is located between the two stops.

3. The unlocking structure of an electronic lock according to claim 1, characterized in that: The locking pin (600) is provided with a guide assembly (500), the guide assembly (500) includes at least one guide post (510), the guide post (510) is fixed inside the housing and is provided with a pin hole that can accommodate the movement of the locking pin (600).

4. The unlocking structure of an electronic lock according to claim 3, characterized in that: The guide post (510) is provided with a reset groove (511) that connects with the pin hole. The locking pin (600) is provided with a limiting ring (610) on its outer periphery. A reset spring (520) is sleeved on the locking pin (600) and abuts against the limiting ring (610), pushing the limiting ring (610) toward the pin hole.

5. The unlocking structure of an electronic lock according to claim 3 or 4, characterized in that: The guide post (510) is also provided with a fixing block (530) on the outside. The fixing block (530) is hollow and has a guide groove. The guide groove is a cylindrical groove with an open rear end face. The front end face of the guide groove has a clearance hole (531) that can accommodate the extension of the locking pin (600).

6. The unlocking structure of an electronic lock according to claim 5, characterized in that: The head of the guide post (510) is configured as a frustum structure, which is contained within the guide groove, and the small diameter end faces the side of the clearance hole (531).

7. The unlocking structure of an electronic lock according to claim 6, characterized in that: The tail of the guide post (510) is a cylinder with a diameter that is the same as the inner diameter of the guide groove, and the outer circumference is provided with mating lines (512).

8. The unlocking structure of an electronic lock according to claim 5, characterized in that: The housing has an internal mounting groove for limiting the fixing block (530).

9. The unlocking structure of an electronic lock according to claim 1, characterized in that: The lock housing includes a rotating part and a locking part. The rotating part is located outside the housing and is held by hand for rotation. The locking part extends into the housing, and the lock groove is located on the locking part.

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