Structure for unlocking rear lock of inner door and unlocking electronic counter lock

Abstract

The utility model relates to an electronic lock, in particular to a structure for unlocking a rear lock of an inner door and unlocking an electronic back lock, which solves the design problem of a mechanical trigger structure of the electronic lock. Comprising an outer cylinder, a pressing piece, a rotating piece and a fixed piece, the outer cylinder is of a hollow through cylindrical structure, the rotating piece is arranged in the outer cylinder in a sleeved mode, the rotating piece and the outer cylinder are fixedly assembled and are in circumferential linkage, the fixed piece is a fixed reference system relative to the outer cylinder, and a movable piece and a second elastic piece driving the movable piece to elastically reset are arranged in the fixed piece. The rotating piece and the movable piece are assembled in a linkage mode, the pressing piece is inserted into the rotating piece to do axial reciprocating motion, a first elastic piece for driving resetting is arranged between the pressing piece and the rotating piece, locking and unlocking are achieved through the two steps of pressing and rotating, a mechanical action trigger circuit controls associated operation, cost is reduced, and reliability is improved. And personnel operation is facilitated, and the design and use requirements are met.

Description

Technical Field

[0001] The utility model relates to an electronic lock, in particular to an electronic anti-locking structure for rear-locking and unlocking an inner door. Background Art

[0002] An electronic combination lock is an electronic product that uses a password to control a circuit or chip (for access control systems), thereby controlling the closing of a mechanical switch to unlock or lock the door. There are many different types, ranging from simple circuit-based products to cost-effective chip-based models. Currently, the most widely used electronic combination locks are based on chips and are programmed. In the field of security technology, electronic combination locks with anti-theft alarm functions have replaced traditional mechanical combination locks, overcoming the shortcomings of mechanical combination locks, such as limited passwords and poor security performance, and significantly improving both the technology and performance of combination locks.

[0003] Based on the above, there is a category of electronic locks with lower user requirements. These locks are locked and unlocked by pressing a button. These traditionally employ touch-activated sensor circuits, which are costly and difficult to maintain. However, after extended use, these systems are susceptible to dust, fingerprints, and frequency of use, often failing to meet expectations. This type of trigger circuit is particularly effective and inconvenient for interior door rear locks, as it is less practical and convenient than a mechanical trigger. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the utility model provides an electronic anti-locking structure for rear-locking and unlocking of an inner door.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an electronic anti-locking structure for unlocking and disengaging the rear lock of an inner door, comprising an outer cylinder, a pressing member, a rotating member and a fixed member, the outer cylinder being a hollow through-cylindrical structure, the rotating member being sleeved in the outer cylinder, and the rotating member and the outer cylinder being fixedly assembled for circumferential linkage, the fixed member being a fixed reference system relative to the outer cylinder, a movable member and an elastic member 2 for driving the movable member to elastically reset are provided in the fixed member, the rotating member and the movable member are linked and assembled, the pressing member is inserted into the rotating member for axial reciprocating motion, and an elastic member 1 for driving reset is provided between the pressing member and the rotating member, the fixed member is provided with a travel switch for detecting the pressing member, the fixed member has a limiting portion arranged along the ring line, the limiting portion is provided with a limiting groove for limiting the rotation of the pressing member, and the pressing member is provided with a limiting block that slides in contact with the surface of the limiting portion.

[0006] The rotating member is provided with a positioning bead, and the pressing member is provided with a shifting groove corresponding to the position of the positioning bead. There are at least two shifting grooves, and the rotating member and the pressing member are clamped and limited at the shifting grooves through the positioning bead.

[0007] The limiting grooves are arranged along an arc-shaped path, and the rotating member is provided with a slot for the limiting block of the pressing member to extend out.

[0008] A groove is provided on the side wall of the rotating part, and a sliding block is provided on the movable part to be inserted into the groove. The sliding block slides with the groove in the axial direction of the movable part, and the sliding block abuts against the groove wall in the circumferential direction of the movable part.

[0009] The elastic member 1 and the elastic member 2 are respectively a compression spring and a torsion spring.

[0010] The outer wall of the outer cylinder is provided with evenly arranged anti-slip tooth surfaces.

[0011] A tray for supporting the movable part and a cavity chamber for installing parts are also provided in the fixed part, and a clamp for limiting the movement of the tray is provided on the rotating part.

[0012] The cavity chamber has an opening at the bottom of the fixing piece, a bottom cover is provided at the opening, a convex rib is provided on the inner wall of the fixing piece, and an embedding groove which is embedded and linked with the convex rib is provided on the bottom cover.

[0013] The beneficial effects of the utility model are as follows: the electronic anti-locking structure for rear locking and unlocking of an inner door provided by the utility model can realize locking and unlocking through two steps of pressing and rotating, and the mechanical action triggers the circuit to control the related operation, which reduces the cost, improves the reliability, and is convenient for personnel to operate, meeting the design and use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a bottom-up exploded structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the exploded structure of the utility model from a top view;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 5 It is a schematic diagram of the internal structure of the utility model. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 5As shown, a rear-lock unlocking and electronic anti-locking mechanism for an interior door comprises an outer cylinder 1, a pressing member 2, a rotating member 3, and a fixed member 4. The outer cylinder 1 is a hollow, through-tube structure. The rotating member 3 is sleeved within the outer cylinder 1 and fixedly assembled with the outer cylinder 1 for circumferential linkage. The fixed member 4 serves as a fixed reference system relative to the outer cylinder 1. The fixed member 4 is linked to the subsequent mechanical interlocking structure and is therefore relatively fixed. This description will not be elaborated on or limited in detail. During use, lightly press the pressing member 2 downward. In this embodiment, the pressing member 2 is also provided with a pressing plate to provide a larger contact surface.

[0020] The fixing member 4 is provided with a movable member 5 and an elastic member 2 6 for driving the movable member 5 to elastically return to its original position. The rotating member 3 and the movable member 5 are assembled in a linkage manner. The pressing member 2 is inserted into the rotating member 3 to make axial reciprocating motion, and an elastic member 1 7 for driving the return to its original position is provided between the pressing member 2 and the rotating member 3. A positioning bead 8 is provided on the rotating member 3, and a shifting groove 9 corresponding to the position of the positioning bead 8 is provided on the pressing member 2. There are at least two shifting grooves 9, and the rotating member 3 and the pressing member 2 are clamped and limited at the shifting grooves 9 by the positioning bead 8. Elastic return by the elastic member 1 7 and the elastic member 2 6 can also be an auxiliary return to its original position. It should be pointed out that in this embodiment, a positioning bead 8 and two corresponding shifts are provided to maintain a relative locked or unlocked state.

[0021] The fixed member 4 is provided with a travel switch 10 for detecting the pressing member 2. The fixed member 4 has a limit portion 11 arranged along a circular line. The limit portion 11 is further provided with a limit groove 12 that restricts the rotation of the pressing member 2. The pressing member 2 is provided with a limit block 13 that slides in contact with the surface of the limit portion 11. The limit groove 12 is arranged along an arc-shaped path, and the rotating member 3 is provided with a slot 14 for the limit block 13 of the pressing member 2 to extend. Specifically, the pressing member 2 moves downward to approach the travel switch 10, thereby triggering the relevant electronic control circuit to achieve locking. To unlock, the outer cylinder 1 is rotated to drive the rotating member 3, which also causes the movable member 5 to rotate and reset. In this embodiment, the pressing member 2 is axially connected to other mechanical structures to restrict circumferential rotation. At the same time, when the rotating member 3 rotates, the shape or step change of the limit groove 12 pushes the pressing member 2 upward, causing the positioning bead 8 to disengage from the original gear groove 9 and enter the adjacent gear groove 9. The contact and sliding of the limiting block 13 and the limiting groove 12 causes the pressing member 2 to move axially up and down relative to the rotating member 3 .

[0022] A slot 15 is formed on the side wall of the rotating member 3, and a sliding block 16 is provided on the movable member 5, which is inserted into the slot 15. The sliding block 16 slides with the slot 15 in the axial direction of the movable member 5 and abuts against the wall of the slot 15 in the circumferential direction of the movable member 5. In this embodiment, the movable member 5 is annular in structure, and the sliding block 16 is disposed on the inner side wall of the movable member 5.

[0023] The first elastic member 7 and the second elastic member 6 are compression springs and torsion springs, respectively. The first primarily bears axial pressure, while the torsion spring primarily bears circumferential tension. This is a mature technology product and will not be elaborated on or limited here. The outer wall of the outer cylinder 1 is provided with evenly spaced anti-slip serrations to facilitate gripping.

[0024] The fixed member 4 also houses a tray 19 that supports the movable member 5 and a cavity 20 for mounting components. The rotating member 3 is equipped with a clamp 21 that restricts the movement of the tray 19. The cavity 20 has an opening at the bottom of the fixed member 4, where a bottom cover 22 is located. The inner wall of the fixed member 4 is provided with a raised rib 23, and the bottom cover 22 has a groove 24 that engages with the raised rib 23. The cavity 20 provides space for the installation of various components, and the clamp 21 ensures relative positioning. The raised rib 23 also restricts the rotation of the bottom cover 22, ensuring a stable relative position.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. At the same time, the basic principles, main features and advantages of the present invention are shown and described above, which should be understood by technicians in this industry.

Claims

1. An electronic anti-locking structure for rear door unlocking, characterized in that: The invention comprises an outer cylinder, a pressing part, a rotating part and a fixed part, wherein the outer cylinder is a hollow through-cylindrical structure, the rotating part is sleeved in the outer cylinder, and the rotating part and the outer cylinder are fixedly assembled for circumferential linkage, the fixed part is a fixed reference system relative to the outer cylinder, a movable part and an elastic part 2 for driving the movable part to elastically reset are provided in the fixed part, the rotating part and the movable part are assembled in linkage, the pressing part is inserted into the rotating part and only makes axial reciprocating motion, and an elastic part 1 for driving reset is provided between the pressing part and the rotating part, the fixed part is provided with a travel switch for detecting the pressing part, the fixed part has a limiting part arranged along the ring line, the limiting part is provided with a limiting groove for limiting the rotation of the pressing part, and the pressing part is provided with a limiting block that slides in contact with the surface of the limiting part.

2. The electronic anti-locking structure for rear door unlocking according to claim 1, characterized in that: The rotating member is provided with a positioning bead, and the pressing member is provided with a shifting groove corresponding to the position of the positioning bead. There are at least two shifting grooves, and the rotating member and the pressing member are clamped and limited at the shifting grooves through the positioning bead.

3. The electronic anti-locking structure for rear door unlocking according to claim 1 or 2, characterized in that: The limiting grooves are arranged along an arc-shaped path, and the rotating member is provided with a slot for the limiting block of the pressing member to extend out.

4. The electronic anti-locking structure for rear door unlocking according to claim 3, characterized in that: A groove is provided on the side wall of the rotating part, and a sliding block is provided on the movable part to be inserted into the groove. The sliding block slides with the groove in the axial direction of the movable part, and the sliding block abuts against the groove wall in the circumferential direction of the movable part.

5. The electronic anti-locking structure for rear door unlocking according to claim 4, characterized in that: The elastic member 1 and the elastic member 2 are respectively a compression spring and a torsion spring.

6. The electronic anti-locking structure for rear door unlocking according to claim 5, characterized in that: The outer wall of the outer cylinder is provided with evenly arranged anti-slip tooth surfaces.

7. The electronic anti-locking structure for rear door unlocking according to claim 3, characterized in that: A tray for supporting the movable part and a cavity chamber for installing parts are also provided in the fixed part, and a clamp for limiting the movement of the tray is provided on the rotating part.

8. The electronic anti-locking structure for rear door unlocking according to claim 7, characterized in that: The cavity chamber has an opening at the bottom of the fixing piece, a bottom cover is provided at the opening, a convex rib is provided on the inner wall of the fixing piece, and an embedding groove which is embedded and linked with the convex rib is provided on the bottom cover.

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