Electronic lock cylinder

Abstract

The utility model discloses an electronic lock cylinder which comprises a lock cylinder shell, a shifting support is arranged on the lock cylinder shell in a rotating mode, a rotating shell is arranged in the lock cylinder shell on the front side of the shifting support in a rotating mode, a connecting part is arranged at the front end of the rotating shell, the connecting part is connected with an outdoor rotary knob, and one side, facing the shifting support, of the rotating shell can be in joint transmission with the shifting support through a clutch. An electric drive assembly used for driving the clutch to be connected with or separated from the shifting pull is arranged in the rotating shell, a mechanical lock container is arranged in the lock cylinder shell, a through hole is formed in the connecting part, the front end of the through hole is communicated with the interior of the outdoor knob, and the rear end of the through hole is communicated with the rotating shell. The transmission pin is connected with the mechanical lock cylinder and can be driven by the mechanical lock cylinder to move back and forth relative to the through hole, a mechanical driving assembly capable of moving back and forth relative to the rotating shell is arranged in the rotating shell, and a protection plate capable of moving up and down or left and right relative to the rotating shell is arranged in the position, between the mechanical driving assembly and the through hole, in the rotating shell. A pin hole is formed in the protection plate, the transmission pin penetrates through the pin hole to abut against the front end of the mechanical driving assembly and can drive the mechanical driving assembly to move towards the indoor side, and a first elastic element is arranged in the rotating shell. The first elastic element can drive the protection plate to move relative to the rotating shell when the transmission pin is separated from the pin hole so that the pin hole and the through hole can be staggered.

Description

Technical Field

[0001] The utility model relates to an electronic lock core. Background Art

[0002] Prior art, such as Chinese utility model patent document with publication number CN217538235U, discloses a double-opening mortise lock cylinder, comprising a motor, a first clutch, an outer knob, a mechanical lock cylinder assembly, an electronic lock cylinder housing and a fourth elastic element; the outer knob comprises a knob portion and a clutch portion provided with a cavity; the mechanical lock cylinder assembly comprises a mechanical lock cylinder housing, a lock core and a cylindrical pin arranged in a first cavity hole of the mechanical lock cylinder housing, one end of the cylindrical pin being inserted from a first radial hole of the mechanical lock cylinder housing and then fixed to the side of the lock core; the motor and the first clutch are arranged in a second axial cavity hole of the electronic lock cylinder housing, the fourth elastic element is located between the cavity bottom of the clutch portion and the bottom of the electronic lock cylinder housing, the free end of the first clutch extends from the axial through hole of the electronic lock cylinder housing and the fourth elastic element; the mechanical lock cylinder assembly is arranged in the third axial cavity hole of the knob portion after passing through the third radial hole of the knob portion, and the free end of the cylindrical pin is in contact with the electronic lock cylinder housing.

[0003] Based on the above, in the prior art, an electronic lock core housing is arranged in the clutch part of the outer knob, and the electronic lock core housing can move forward and backward relative to the clutch part. When the mechanical lock core is unlocked, the cylindrical pin of the mechanical lock core can push the electronic lock core housing, driving the entire electronic lock core assembly to move, so that the first clutch and the second clutch are engaged and transmitted, and the lock can be unlocked by twisting the outer knob. In the prior art, the problem of being unable to unlock due to electronic failure is solved by setting a mechanical lock core, but the mechanical lock core and the electronic lock core assembly cannot play an anti-theft unlocking role. When criminals destroy the outer knob part of the outer knob, the electronic lock core assembly in the clutch part will be directly exposed to the criminals' sight. In this state, the criminals only need to push the electronic lock core assembly, so that the first clutch and the second clutch drive the clutch part to rotate to complete the unlocking. It can be seen that the existing lock core with both electronic drive and mechanical drive does not have an anti-theft effect. It can be easily unlocked after the outer knob is damaged. There is no anti-theft structure, lacks security, and needs further improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an electronic lock core provided with a protective plate, when the outdoor knob is damaged, the outdoor knob together with the transmission pin is removed, and the protective plate can realize self-locking protection under the action of the first elastic element.

[0005] An electronic lock core designed for this purpose comprises a lock core housing, a pull-type pull is rotatably provided on the lock core housing, a rotating housing is rotatably provided in the lock core housing on the front side of the pull-type pull, a connecting portion is provided at the front end of the rotating housing, the connecting portion is connected to an outdoor knob, a clutch that can be engaged and transmitted with the pull-type pull on the side of the rotating housing facing the pull-type pull, an electric drive component for driving the clutch to engage with or move away from the pull-type pull is provided in the rotating housing, a mechanical lock core is provided in the lock core housing, a through hole is provided on the connecting portion, the front end of the through hole is communicated with the interior of the outdoor knob, and the rear end is communicated with the rotating housing, a transmission pin is movably provided in the through hole, and the transmission pin is connected to the mechanical lock The mechanical lock is connected to the housing and driven by the mechanical lock to move forward and backward relative to the through hole. A mechanical driving component that can move forward and backward relative to the rotating housing is arranged in the rotating housing, and a protective plate that can move up and down or left and right relative to the rotating housing is arranged in the rotating housing between the mechanical driving component and the through hole. A pin hole is arranged on the protective plate. The transmission pin passes through the pin hole and abuts against the front end of the mechanical driving component and can drive the mechanical driving component to move toward one side of the room. A first elastic element is arranged in the rotating housing. The first elastic element can drive the protective plate to move relative to the rotating housing when the transmission pin is disengaged from the pin hole so that the pin hole and the through hole are misaligned with each other.

[0006] Preferably, the mechanical drive assembly comprises a moving member arranged in the rotating housing, the moving member is provided with a driving rod, and one end of the driving rod away from the moving member contacts the clutch for transmission.

[0007] Preferably, a guide groove is provided in the rotating shell, the protective plate is movably arranged in the guide groove, the protective plate can be moved up and down or left and right relative to the guide groove, and the first elastic element is arranged in the guide groove.

[0008] Preferably, a control circuit board is arranged in the outdoor knob, and an encryption matching circuit board is arranged in the lock core housing on the rear side of the protective plate, and the control circuit board, the encryption matching circuit board and the electric drive assembly are connected in sequence.

[0009] Preferably, a second elastic element is disposed in the rotating shell, and the second elastic element applies a force on the moving part to move toward the outdoor side.

[0010] Preferably, the driving rod comprises a first pushing portion, an elastic telescopic portion and a second pushing portion which are connected in sequence, the first pushing portion is connected to the moving member, and the second pushing portion is in contact with the clutch for transmission.

[0011] Preferably, the second pushing portion is further provided with a reinforcement sleeve.

[0012] Preferably, a main installation cavity and a guide cavity are provided in the rotating shell, the moving member is movably provided in the main installation cavity, and the driving rod is movably provided in the guide cavity.

[0013] Preferably, a transmission rod is connected to the power output end of the mechanical lock core, and the transmission rod is fixedly connected to the transmission pin. When the key is inserted into the mechanical lock core and turned, the transmission rod and the transmission pin can be driven to move toward one side of the room.

[0014] Preferably, an annular groove is provided on the outer wall of the rotating housing, and a limiting member plugged into the annular groove is provided on the lock core housing.

[0015] Compared with the prior art, the utility model is provided with a pin hole connected with the through hole, and the pin hole is provided on the protective plate. When the outdoor knob is damaged and removed, the transmission pin will be taken away together with the outdoor knob. When the transmission pin is taken away, the protective plate is no longer constrained by the transmission pin. Under the action of the first elastic element, the protective plate will move relative to the rotating shell, so that the pin hole and the through hole are misaligned with each other. In this state, even if the outdoor knob is damaged, the criminals still cannot control the mechanical drive assembly located in the rotating shell through the through hole, and thus cannot control the clutch and the pull-drag engagement transmission. The criminals cannot control the lock core to unlock, which plays the role of anti-theft self-locking protection and has better safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model;

[0017] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 3 This is one of the cross-sectional structural schematic diagrams of the utility model;

[0019] Figure 4 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0020] Figure 5 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0021] Figure 6 This is the second schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 7 This is the third schematic diagram of the cross-sectional structure of the utility model;

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure of the mechanical drive assembly in the utility model;

[0024] Fig. 9 It is a schematic diagram of a structure in which a pin hole and a through hole are misaligned with each other;

[0025] Fig.10 It is a schematic diagram of the structure of the mechanical lock. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] See also Figure 1-Figure 10 , an electronic lock core comprises a lock core housing 10, on which a pull-type pull 110 is rotatably provided, a rotating housing 40 is rotatably provided in the lock core housing 10 on the front side of the pull-type pull 110, a connecting portion 430 is provided at the front end of the rotating housing 40, and the connecting portion 430 is connected to an outdoor knob 20, and a clutch 60 that can be engaged with the pull-type pull 110 for transmission on the side of the rotating housing 40 facing the pull-type pull 110, and an electric drive component 50 for driving the clutch 60 to engage with or move away from the pull-type pull 110 is provided in the rotating housing 40, a mechanical lock core 100 is provided in the lock core housing 10, and a through hole 431 is provided in the connecting portion 430, the front end of the through hole 431 is communicated with the interior of the outdoor knob 20, and the rear end is communicated with the rotating housing 40, and a transmission pin 102 is movably provided in the through hole 431, and the transmission pin 102 is connected to the mechanical lock The mechanical lock 100 is connected to the housing 40 and is driven by the mechanical lock 100 to move forward and backward relative to the through hole 431. A mechanical driving component 70 that can move forward and backward relative to the rotating housing 40 is arranged in the rotating housing 40. A protective plate 90 that can move up and down or left and right relative to the rotating housing 40 is arranged in the rotating housing 40 between the mechanical driving component 70 and the through hole 431. A pin hole 910 is arranged on the protective plate 90. The transmission pin 102 passes through the pin hole 910 and abuts against the front end of the mechanical driving component 70 and can drive the mechanical driving component 70 to move toward one side of the room. A first elastic element 930 is arranged in the rotating housing 40. The first elastic element 930 can drive the protective plate 90 to move relative to the rotating housing 40 when the transmission pin 102 disengages from the pin hole 910, so that the pin hole 910 and the through hole 431 are misaligned with each other.

[0028] Based on the above embodiment, when the outdoor knob 20 is destroyed and removed, the transmission pin 102 will be taken away together with the outdoor knob 20. After the transmission pin 102 is taken away, the protective plate 90 is no longer constrained by the transmission pin 102. The protective plate 90 will move relative to the rotating shell 40 under the action of the first elastic element 930, so that the pin hole 910 and the through hole 431 are misaligned with each other. Fig. 9As shown, in this state, even if the outdoor knob 20 is damaged, criminals still cannot control the mechanical drive assembly 70 located in the rotating shell 340 through the through hole 431, thereby being unable to control the clutch 60 and the pull-pull 110 to engage and transmit. Criminals cannot control the lock core to unlock, thereby playing the role of anti-theft self-locking protection and providing better security.

[0029] Furthermore, the first elastic element 930 is a spring, and the spring applies a force to the protective plate 90 to move downward, and the protective plate 90 is arranged to move up and down relative to the rotating shell 40.

[0030] Furthermore, the protection plate 90 can be made of existing steel plates or other plates that can protect against impact drill bits.

[0031] See also Figure 4 and Figure 8 The mechanical driving assembly 70 includes a moving member 710 disposed in the rotating housing 40 , and a driving rod 720 is disposed on the moving member 710 . One end of the driving rod 720 away from the moving member 710 contacts the clutch 60 for transmission.

[0032] See also Figure 4 and Fig. 9 The rotating housing 40 is provided with a guide groove 440, the protective plate 90 is movably arranged in the guide groove 440, the protective plate 90 can be movably arranged up and down or left and right relative to the guide groove 440, and the first elastic element 930 is arranged in the guide groove 440. The setting of the guide groove 440 can further restrict the position of the protective plate 90, so that the protective plate 90 cannot move forward and backward relative to the rotating housing 40, thereby avoiding the problem that the protective plate 90 can move after being damaged and trigger the mechanical drive assembly 70 to drive the clutch 60, which can effectively improve safety.

[0033] See also Figure 4 , a control circuit board 800 is arranged in the outdoor knob 20, and an encryption matching circuit board 810 is arranged in the lock core housing 10 on the rear side of the protective plate 90, and the control circuit board 800, the encryption matching circuit board 810 and the electric drive assembly 50 are connected in sequence. Since this product is a dual-function lock core for mechanical unlocking and electronic unlocking, the control circuit board 800 required for electronic unlocking is arranged in the outdoor knob 20, and in order to prevent the outdoor knob 20 from being damaged and the criminals using a battery to power the electric drive assembly 50. In this solution, an encryption matching circuit board 810 is arranged, and the encryption matching circuit board 810 controls the electric drive assembly 50 to start unlocking only after receiving the matching signal from the control circuit board 800. It can effectively increase security, and at the same time, the encryption matching circuit board 810 is arranged in the lock core housing 10 on the rear side of the protective plate 90, which can prevent criminals from contacting the encryption matching circuit board 810.

[0034] See also Figure 4 The rotating housing 40 is provided with a second elastic element 820, and the second elastic element 820 applies a force to the moving member 710 to move toward the outdoor side. The second elastic element 820 is used to assist the mechanical drive assembly 70 in resetting under normal conditions. When the mechanical lock core 100 drives the mechanical drive assembly 70 to move toward the indoor side, the second elastic element 820 is compressed. When the turning key drives the mechanical lock core 100 to drive the mechanical drive assembly 70 to reset toward the indoor side, the second elastic element 820 releases the stored force to drive the mechanical drive assembly 70 to reset.

[0035] Furthermore, the second elastic element 820 is a spring.

[0036] At the same time, when the outdoor knob 20 is damaged, the second elastic element 820 can push the transmission pin 102 abutting against the mechanical drive assembly 70 toward the outdoor side, thereby playing an auxiliary pushing role. Finally, the transmission pin 102 still needs to rely on the outdoor knob 20 to be taken away while bringing the transmission pin 102 out to the outside of the through hole 431.

[0037] See also Figure 8 The driving rod 720 includes a first pushing portion 721, an elastic telescopic portion 722 and a second pushing portion 723 which are connected in sequence, wherein the first pushing portion 721 is connected to the moving member 710, and the second pushing portion 723 is in contact with the clutch 60 for transmission. The elastic telescopic portion 722 is used to be compressed when the driving rod 720 pushes the clutch 60 to move toward the puller 110 to avoid damage caused by hard contact.

[0038] See also Figure 5 The second pushing portion 723 is further provided with a reinforcing sleeve 730. The reinforcing sleeve 730 can strengthen the strength of the second pushing portion 723 to enhance its stability.

[0039] Furthermore, two driving rods 720 are provided, which are respectively arranged at the upper and lower sides of the moving member 710 .

[0040] Furthermore, a mounting plate 80 is disposed in the rotating housing 40 , and one end of the second elastic element 820 is connected to the mounting plate 80 , and the other end is connected to the moving member 710 .

[0041] See also Figure 4 A main installation cavity 401 and a guide cavity 400 are provided in the rotating shell 40 , the moving member 710 is movably provided in the main installation cavity 401 , and the driving rod 720 is movably provided in the guide cavity 400 .

[0042] See also Figure 6 The power output end of the mechanical lock core 100 is connected to a transmission rod 101, and the transmission rod 101 is fixedly connected to the transmission pin 102. When the key is inserted into the mechanical lock core 100 and turned, the transmission rod 101 together with the transmission pin 102 can be driven to move toward one side of the room.

[0043] See also Fig.10 The mechanical lock 100 includes a lock shell 103 and a lock drive rod 104 rotatably arranged relative to the lock shell 103, a guide pin 106 is arranged on the lock drive rod 104, a guide spiral groove 105 is arranged on the lock shell 103, and the guide pin 106 is movably arranged on the guide spiral groove 105. When the matching key passes through the lock shell 103 and is plugged into the lock drive rod 104 and drives the lock drive rod 104 to rotate, the lock drive rod 104 can rotate and move at the same time under the cooperation of the guide spiral groove 105 and the guide pin 106, so as to drive the transmission rod 101 and the transmission pin 102 to move toward the indoor side.

[0044] Furthermore, the transmission rod 101 is connected to the lock core driving rod 104 through a shaft. Since the lock core driving rod 104 needs to rotate and move at the same time, the transmission rod 101 is connected to the lock core driving rod 104, and the transmission rod 101 can rotate relative to the lock core driving rod 104.

[0045] Furthermore, the transmission rod 101 and the transmission pin 102 are riveted and fixed.

[0046] See also Figure 7 The outer wall of the rotating housing 40 is provided with an annular groove 403, and the lock core housing 10 is provided with a stopper 402 plugged into the annular groove 403. This structure can constrain the rotating housing 40 so that it cannot move forward and backward, but can rotate relative to the lock core housing 10.

[0047] See also Figure 3 An indoor knob 30 is disposed at the rear side of the lock core housing 10 , and the indoor knob 30 is connected to a transmission shaft 310 , which extends into the lock core housing 10 and is transmission-connected to the puller 110 .

[0048] See also Figure 1 and Figure 2 A protective cover 200 for shielding the mechanical lock core 100 is provided on the outdoor knob 20.

[0049] See also Figure 3 A battery 201 for power supply is arranged in the outdoor knob 20.

[0050] See also Figure 5The clutch 60 is provided with a clutch pin 610, and the puller 110 is provided with a clutch hole 111. When the clutch 60 is driven by the electric drive assembly 50 or the mechanical drive assembly 70, the clutch 60 moves toward the puller 110. When the clutch pin 610 is inserted into the clutch hole 111, the engagement is completed. In the engaged state, rotating the outdoor knob 20 can drive the rotating housing 40 to rotate through the connecting portion 430, thereby driving the clutch 60 located in the rotating housing 40 to rotate, thereby driving the puller 110 to rotate.

[0051] Furthermore, the electric drive assembly 50 adopts a conventional structure, which is composed of a motor part 510 and a return spring 520 . The motor part 510 is used to drive the clutch 60 to move toward the puller 110 , and the return spring 520 is used to drive the clutch 60 to return to its original position and separate from the puller 110 .

[0052] See also Figure 4 The outdoor knob 20 is fixed to the connecting portion 430 by bolts and threads. At the same time, the existing conventional mounting structure can also be used for assembly.

[0053] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0055] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An electronic lock core, comprising a lock core housing (10), a puller (110) being rotatably provided on the lock core housing (10), a rotating housing (40) being rotatably provided in the lock core housing (10) in front of the puller (110), a connecting portion (430) being provided at the front end of the rotating housing (40), the connecting portion (430) being connected to an outdoor knob (20), a clutch (60) being capable of engaging with the puller (110) for transmission on a side of the rotating housing (40) facing the puller (110), an electric drive assembly (50) being provided in the rotating housing (40) for driving the clutch (60) to engage with or to move away from the puller (110), a mechanical lock core (100) being provided in the lock core housing (10), characterized in that: The connecting portion (430) is provided with a through hole (431), the front end of the through hole (431) is connected to the interior of the outdoor knob (20), and the rear end is connected to the rotating shell (40), a transmission pin (102) is movably provided in the through hole (431), the transmission pin (102) is connected to the mechanical lock core (100) and is driven by the mechanical lock core (100) to move forward and backward relative to the through hole (431), a mechanical driving component (70) that can move forward and backward relative to the rotating shell (40) is provided in the rotating shell (40), and a mechanical driving component (70) that can move forward and backward relative to the rotating shell (40) is provided in the rotating shell (40) between the mechanical driving component (70) and the through hole (431). A protective plate (90) is movable up and down or left and right relative to the rotating shell (40), and a pin hole (910) is provided on the protective plate (90). The transmission pin (102) passes through the pin hole (910) and abuts against the front end of the mechanical drive component (70) and can drive the mechanical drive component (70) to move toward the indoor side. A first elastic element (930) is provided in the rotating shell (40). When the transmission pin (102) is separated from the pin hole (910), the first elastic element (930) can drive the protective plate (90) to move relative to the rotating shell (40) so that the pin hole (910) and the through hole (431) are misaligned with each other.

2. An electronic lock cylinder according to claim 1, characterized in that: The mechanical drive assembly (70) comprises a moving member (710) arranged in the rotating housing (40), a driving rod (720) being arranged on the moving member (710), and an end of the driving rod (720) away from the moving member (710) is in contact with the clutch (60) for transmission.

3. The electronic lock cylinder according to claim 1, characterized in that: A guide groove (440) is provided in the rotating shell (40), the protective plate (90) is movably arranged in the guide groove (440), the protective plate (90) can be movably arranged up and down or left and right relative to the guide groove (440), and the first elastic element (930) is arranged in the guide groove (440).

4. The electronic lock cylinder according to claim 1, characterized in that: A control circuit board (800) is arranged in the outdoor knob (20), an encryption matching circuit board (810) is arranged in the lock core housing (10) on the rear side of the protective plate (90), and the control circuit board (800), the encryption matching circuit board (810) and the electric drive assembly (50) are connected in sequence.

5. The electronic lock cylinder according to claim 2, characterized in that: A second elastic element (820) is disposed in the rotating shell (40), and the second elastic element (820) applies a force to the moving member (710) to move toward the outdoor side.

6. An electronic lock cylinder according to claim 2 or 5, characterized in that: The driving rod (720) comprises a first pushing portion (721), an elastic telescopic portion (722) and a second pushing portion (723) which are connected in sequence, the first pushing portion (721) being connected to the moving member (710), and the second pushing portion (723) being in contact with the clutch (60) for transmission.

7. An electronic lock cylinder according to claim 6, characterized in that: The second pushing portion (723) is further provided with a reinforcing sleeve (730).

8. An electronic lock cylinder according to claim 2 or 5, characterized in that: A main installation cavity (401) and a guide cavity (400) are provided in the rotating shell (40); the moving member (710) is movably provided in the main installation cavity (401); and the driving rod (720) is movably provided in the guide cavity (400).

9. An electronic lock cylinder according to any one of claims 1 to 5, characterized in that: The power output end of the mechanical lock core (100) is connected to a transmission rod (101), and the transmission rod (101) is fixedly connected to the transmission pin (102). When a key is inserted into the mechanical lock core (100) and turned, the transmission rod (101) and the transmission pin (102) can be driven to move toward one side of the room.

10. An electronic lock cylinder according to any one of claims 1 to 5, characterized in that: An annular groove (403) is provided on the outer wall of the rotating housing (40), and a limiting member (402) inserted into the annular groove (403) is provided on the lock core housing (10).

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