Locking mechanism

Abstract

The utility model provides a locking mechanism which comprises a fixing frame shell and a base plate, and the fixing frame shell is correspondingly installed on the base plate. A first mounting shaft is correspondingly arranged at the upper part in the fixing frame shell, an arc-shaped spring bolt is correspondingly and rotationally mounted on the first mounting shaft, a first torsional spring is correspondingly mounted between the spring bolt and the first mounting shaft, a first notch is correspondingly formed in the top of the fixing frame shell, and the upper part of the spring bolt correspondingly extends out of the first notch; a rotating cap capable of being driven to rotate is installed at the corresponding position of one side of the lower portion in the fixing frame shell, arc-shaped conical faces are correspondingly arranged on the two sides of the top end of the rotating cap, and an inclined face is correspondingly arranged on the side, close to the rotating cap, of the lower portion of the spring bolt. The integral structural design is simple and ingenious, the number of internal parts is relatively small, matching is relatively simple, the installation space is well reduced, the manufacturing cost is reduced, the fault occurrence probability is also reduced, maintenance is convenient, the integral use is flexible and convenient, practicability is high, and popularization is worthy.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of security, and in particular to a locking mechanism. Background Art

[0002] As people's living standards continue to improve, there are more and more valuables, and people's demand for various safes is also increasing. A safe is a locked cabinet for storing valuables. There are many types of safes on the market, and they are widely used in offices, homes and other places.

[0003] A safe primarily consists of a cabinet and a locking mechanism, which securely locks the lock cylinder to enhance safety. However, existing locking mechanisms, such as the safe handle locking mechanism disclosed in Chinese Patent Application No. CN201410351818.8, have complex internal structures, numerous components, and complex assembly. This not only increases the manufacturing cost of the locking mechanism but also makes it prone to malfunction and inconvenient to repair. Furthermore, the excessive number of internal components requires a large installation space for the locking mechanism, making it very inconvenient to manufacture and use. Therefore, it is necessary to propose an improvement to address the above-mentioned technical problems.

[0004] It should be noted that the above content belongs to the technical knowledge scope of the inventor. Since the technical content in this field is vast and too complicated, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model:

[0006] The present utility model provides a locking mechanism to solve the technical problems existing in the above-mentioned background technology.

[0007] 2. Technical solution:

[0008] To achieve the above-mentioned purpose, the technical solution provided by the utility model is as follows: a locking mechanism, comprising a fixed frame shell and a chassis, wherein the fixed frame shell is correspondingly mounted on the chassis; a first mounting shaft is correspondingly provided on the upper inner portion of the fixed frame shell, an arc-shaped lock tongue is correspondingly rotatably mounted on the first mounting shaft, a first torsion spring is correspondingly installed between the lock tongue and the first mounting shaft, a first notch is correspondingly opened on the top of the fixed frame shell, and the upper portion of the lock tongue extends out of the first notch; a rotating cap that can be driven to rotate is installed at a corresponding position on one side of the lower inner portion of the fixed frame shell, arc-shaped conical surfaces are correspondingly provided on both sides of the top end of the rotating cap, and an inclined surface is correspondingly provided on the side of the lower portion of the lock tongue close to the rotating cap; when the top end of the rotating cap is correspondingly against the inclined surface, the upper portion of the lock tongue extends out of the first notch and cannot rotate; when the rotating cap is rotated to the top end avoiding the inclined surface, the lock tongue can be rotated so that the upper portion of the lock tongue is completely retracted into the first notch.

[0009] Furthermore, a motor fixing frame is provided at a corresponding position on one side of the lower portion of the fixing frame shell, a motor is installed in the motor fixing frame, and the rotating cap is installed on the output shaft of the motor, and the rotating cap is driven to rotate by the motor.

[0010] Furthermore, a shaft cap driving member is correspondingly provided on the other side of the lower inner portion of the fixed frame shell, and a second mounting shaft is provided at a corresponding position on the other side of the lower inner portion of the fixed frame shell, the lower portion of the shaft cap driving member is rotatably mounted on the second mounting shaft, and a second torsion spring is correspondingly installed between the lower portion of the shaft cap driving member and the second mounting shaft; a triangular pressure plate is correspondingly provided on the side of the upper portion of the shaft cap driving member close to the rotating cap, and the triangular pressure plate is correspondingly pressed against the arc conical surface of the rotating cap; a dial plate is correspondingly provided on the side of the upper portion of the shaft cap driving member away from the rotating cap, and a second notch is opened at a corresponding position on one side of the fixed frame shell, and the dial plate extends out of the second notch; when the motor fails, the dial plate is dialed, so that the triangular pressure plate is pressed against the arc conical surface inside the rotating cap and rotates, so that the top end of the rotating cap can avoid the inclined surface of the lock tongue.

[0011] Furthermore, a stop block is provided on one side of the dial plate close to the chassis, and the stop block is pressed against the chassis.

[0012] Furthermore, a control circuit board is correspondingly installed in the lower portion of the fixing frame shell, and the motor is electrically connected to the controller on the control circuit board.

[0013] 3.Beneficial effects:

[0014] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0015] The utility model has a reasonable design. The lock tongue, the rotating cap, the motor and the shaft cap driving member are correspondingly arranged in the locking mechanism, and the structures of the lock tongue, the rotating cap and the shaft cap driving member are specially designed. When in use, the motor drives the rotating cap to rotate accordingly, and the cooperation between the rotating cap and the lock tongue can drive the lock tongue to whether to lock the limit position; when the top end of the rotating cap corresponds to the inclined surface of the lock tongue, the upper part of the lock tongue extends out of the first notch and cannot rotate. At this time, the locking mechanism performs a security lock on the lock cylinder of the safe; when the motor drives the rotating cap to rotate to the top end to avoid the inclined surface, it pushes the lock cylinder of the safe, so that the upper part of the lock tongue can be completely rotated and retracted into the fixed frame shell, and the security locking state is released, so that the safe can be opened; when the safe is closed, the lock tongue will also rotate and reset under the action of the first torsion spring, and the security lock is performed again. The utility model is very convenient to use as a whole.

[0016] In addition, the present invention also provides a shaft cap driving part in the locking mechanism, so that when the motor fails, the rotating cap can be manually and mechanically driven to rotate, releasing the security locking state so that the safe can be opened, avoiding the situation of violent disassembly of the locking mechanism and realizing mechanical emergency. Its overall structural design is simple and ingenious, with relatively few internal parts and relatively simple coordination. Compared with traditional locking mechanisms, it can better reduce the installation space, reduce manufacturing costs, reduce the probability of failure, and facilitate maintenance. Its overall use is flexible and convenient, highly practical, and worthy of promotion.

[0017] It should be noted that the structures not introduced in the present invention do not involve the design points and improvement directions of the present invention, and are the same as the existing technology or can be implemented by using the existing technology, so they are not described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the locking mechanism of the present utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the locking mechanism of the present invention;

[0020] Figure 3 This is a structural diagram of the shaft cap driving member of the present utility model;

[0021] Figure 4 It is a structural schematic diagram of the rotary cap of the utility model.

[0022] Reference numerals:

[0023] 1. Fixed frame; 101. First mounting axis; 102. Motor fixing frame; 103. Second mounting axis; 104. First notch; 105. Second notch; 2. Chassis; 3. Lock tongue; 301. Inclined surface; 4. Shaft cap drive member; 401. Triangular pressure plate; 402. Paddle plate; 403. Stop block; 5. First torsion spring; 6. Motor; 7. Rotating cap; 701. Arc-shaped cone surface; 8. Second torsion spring; 9. Control circuit board. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] 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", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., 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 device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0027] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," "provided with," "provided on," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances. Example

[0028] Refer to the attached Figure 1-4 A locking mechanism of this embodiment includes a fixed frame shell 1 and a chassis 2, wherein the fixed frame shell 1 is correspondingly mounted on the chassis 2. A first mounting shaft 101 is correspondingly provided on the upper inner portion of the fixed frame shell 1, and an arc-shaped lock tongue 3 is correspondingly mounted on the first mounting shaft 101 for rotation. A first torsion spring 5 is correspondingly installed between the lock tongue 3 and the first mounting shaft 101, and the rotational reset of the lock tongue 3 is achieved by the first torsion spring 5. A first notch 104 is correspondingly provided on the top of the fixed frame shell 1, and the upper portion of the lock tongue 3 extends out of the first notch 104. A rotating cap 7 capable of being driven to rotate is correspondingly installed at a corresponding position on one side of the lower inner portion of the fixed frame shell 1. Arc-shaped conical surfaces 701 are correspondingly provided on both sides of the top of the rotating cap 7, and an inclined surface 301 is correspondingly provided on the lower side of the lock tongue 3 close to the rotating cap 7.

[0029] When the top of the rotary cap 7 is against the inclined surface 301, the upper part of the lock tongue 3 extends out of the first notch 104 and cannot be rotated. At this time, the locking mechanism performs security locking on the safe lock cylinder; when the rotary cap 7 is rotated to the top to avoid the inclined surface 301, the lower part of the lock tongue 3 can pass through the arc cone 701 on the side of the rotary cap 7 to rotate, and the safe lock cylinder is pushed at this time, so that the upper part of the lock tongue 3 is completely rotated and retracted into the first notch 104 of the fixed frame shell 1, releasing the security locking state, so that the safe is opened; when the safe is closed, the safe lock cylinder is moved and reset to the initial position, and the lock tongue 3 is rotated and reset under the action of the first torsion spring 5, so that the upper part of the lock tongue 3 is re-extended to the first notch 104 of the fixed frame shell 1, and then the rotary cap 7 is driven by the motor 6 to rotate and reset again until it is against the inclined surface 301 of the lock tongue 3, and at this time the lock tongue 3 will re-lock the safe lock cylinder.

[0030] Specifically, a motor fixing frame 102 is provided at a corresponding position on one side of the lower portion of the fixing frame shell 1 , a motor 6 is installed in the motor fixing frame 102 , and the rotating cap 7 is installed on the output shaft of the motor 6 , and the rotating cap 7 is driven to rotate by the motor 6 .

[0031] A shaft cap driver 4 is correspondingly provided on the other side of the lower inner portion of the fixed frame housing 1. A second mounting shaft 103 is provided at a corresponding position on the other side of the lower inner portion of the fixed frame housing 1. The lower portion of the shaft cap driver 4 is rotatably mounted on the second mounting shaft 103. A second torsion spring 8 is correspondingly installed between the lower portion of the shaft cap driver 4 and the second mounting shaft 103. The second torsion spring 8 is used to achieve rotational reset of the shaft cap driver 4. An arc-shaped triangular pressure plate 401 is correspondingly provided on the upper side of the shaft cap driver 4 near the rotating cap 7. The triangular pressure plate 401 is correspondingly abutted against the arc-shaped conical surface 701 on the inner side of the rotating cap 7. A dial plate 402 is correspondingly provided on the upper side of the shaft cap driver 4 away from the rotating cap 7. A second notch 105 is provided at a corresponding position on the side of the fixed frame housing 1 near the shaft cap driver 4. The dial plate 402 extends out of the second notch 105. When the motor 6 fails and cannot drive the rotating cap 7 to rotate, the dial plate 402 is toggled to rotate the shaft cap driving member 4, which allows the triangular pressure plate 401 to rotate against the arc-shaped conical surface 701 inside the rotating cap 7, so that the top of the rotating cap 7 avoids the inclined surface 301 of the lock tongue 3. At this time, the safe lock cylinder is pushed to completely rotate the upper part of the lock tongue and retract it into the first notch 104 of the fixed frame shell 1, releasing the security locking state so that the safe can be opened smoothly, avoiding the situation of violent disassembly of the locking mechanism, and realizing mechanical emergency.

[0032] During installation, there is a gap between the dial plate 402 of the shaft cap driving member 4 and the chassis 2. In order to ensure stability in use, a corresponding block 403 can be provided on the side of the dial plate 402 close to the chassis 2. The block 403 is pressed against the chassis 2. When the dial plate 402 is moved, the block 403 can move together with the chassis 2. The block 403 plays a supporting role, making the movement of the dial plate 402 more stable and reliable.

[0033] A control circuit board 9 is also mounted on the lower inner portion of the fixing frame housing 1 , and the motor 6 is electrically connected to a controller on the control circuit board 9 so as to achieve automatic control.

[0034] The above-mentioned embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, which all fall within the scope of protection of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A locking mechanism, characterized in that: The invention comprises a fixed frame shell (1) and a chassis (2), wherein the fixed frame shell (1) is correspondingly mounted on the chassis (2); a first mounting shaft (101) is correspondingly provided on the upper inner portion of the fixed frame shell (1), an arc-shaped lock tongue (3) is correspondingly mounted on the first mounting shaft (101), a first torsion spring (5) is correspondingly mounted between the lock tongue (3) and the first mounting shaft (101), a first notch (104) is correspondingly opened on the top of the fixed frame shell (1), and the upper portion of the lock tongue (3) extends out of the first notch (104); a first notch (104) is correspondingly provided on the lower inner portion of the fixed frame shell (1). A rotating cap (7) capable of being driven to rotate is installed at a corresponding position on the side, and arc-shaped conical surfaces (701) are correspondingly provided on both sides of the top of the rotating cap (7), and a slope (301) is correspondingly provided on the side of the lower part of the lock tongue (3) close to the rotating cap (7); when the top of the rotating cap (7) is correspondingly against the slope (301), the upper part of the lock tongue (3) extends out of the first notch (104) and cannot rotate; when the rotating cap (7) is rotated to the top to avoid the slope (301), the lock tongue (3) can be rotated so that the upper part of the lock tongue (3) is completely retracted into the first notch (104).

2. A locking mechanism according to claim 1, characterized in that: A motor fixing frame (102) is provided at a corresponding position on one side of the lower portion of the fixing frame shell (1), a motor (6) is correspondingly installed in the motor fixing frame (102), and the rotating cap (7) is correspondingly installed on the output shaft of the motor (6), and the rotating cap (7) is driven to rotate by the motor (6).

3. The locking mechanism according to claim 2, wherein: A shaft cap driving member (4) is correspondingly provided on the other side of the lower inner portion of the fixed frame shell (1), and a second mounting shaft (103) is provided at a corresponding position on the other side of the lower inner portion of the fixed frame shell (1). The lower portion of the shaft cap driving member (4) is rotatably mounted on the second mounting shaft (103), and a second torsion spring (8) is correspondingly installed between the lower portion of the shaft cap driving member (4) and the second mounting shaft (103); a triangular pressure plate (401) is correspondingly provided on one side of the upper portion of the shaft cap driving member (4) close to the rotating cap (7), and the triangular pressure plate (401) is correspondingly abutted against the rotating cap (7). The arc-shaped conical surface (701) of the rotating cap (7) is rotated; a dial plate (402) is correspondingly provided on the side of the upper part of the shaft cap driving member (4) away from the rotating cap (7); a second notch (105) is opened at a corresponding position on one side of the fixed frame shell (1), and the dial plate (402) extends out of the second notch (105); when the motor (6) fails, the dial plate (402) is toggled, so that the triangular pressure plate (401) is rotated against the arc-shaped conical surface (701) on the inner side of the rotating cap (7), so that the top end of the rotating cap (7) can avoid the inclined surface (301) of the lock tongue (3).

4. A locking mechanism according to claim 3, characterized in that: A stop block (403) is correspondingly provided on one side of the dial plate (402) close to the chassis (2), and the stop block (403) is pressed against the chassis (2).

5. The locking mechanism according to claim 2, wherein: A control circuit board (9) is also correspondingly installed in the lower portion of the fixed frame shell (1), and the motor (6) is electrically connected to the controller on the control circuit board (9).

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