Combined mechanical lock with password key

Abstract

The invention discloses a password key combined type mechanical lock which comprises a password lock and a lock cylinder, the password lock comprises a password plate, a movable plate and a turn button arranged on the password plate, the lock cylinder is installed on the password plate, the password key combined type mechanical lock is characterized by further comprising a straight tongue plate, an unlocking limiting plate and a shifting button arranged on the lock cylinder, a spring bolt is arranged at the end of the straight tongue plate, and the movable plate is arranged on the lock cylinder. The end of the unlocking limiting plate is connected with the movable plate, after the rotary button unlocks, the shifting button can rotate along with rotation of the key so as to jack up the unlocking limiting plate to drive the straight tongue plate to move to achieve unlocking and locking, and the movable plate can be pushed to move while the unlocking limiting plate moves.

Description

Technical Field

[0001] The invention relates to a password lock, in particular to a password-key composite mechanical lock. Background Art

[0002] In some special occasions (such as vaults, warehouses for valuables, or some safes), for safety reasons, two people are required to hold different keys respectively. When unlocking the door, two people are required to unlock it together. Ordinary door locks are not suitable for the above occasions.

[0003] Therefore, the applicant combined a password lock (such as patent number: 202020053392.9; patent name: a multifunctional mechanical password lock) and an ordinary lock core to design a password-key composite mechanical lock, which requires a password and a key to unlock or lock at the same time, thereby meeting market demand. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a password key composite mechanical lock.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A combination mechanical lock with a password key comprises a password lock and a lock core, wherein the password lock comprises a password plate, a movable plate, and a rotating knob arranged on the password plate, and the lock core is installed on the password plate. The invention is characterized in that the combination lock further comprises a straight tongue plate, an unlocking limit plate, and a dial knob arranged on the lock core, wherein a lock tongue is arranged at the end of the straight tongue plate, and the end of the unlocking limit plate is connected to the movable plate. After the knob is unlocked, the dial knob can rotate with the rotation of the key, thereby lifting the unlocking limit plate and driving the straight tongue plate to move to realize unlocking and locking, and the unlocking limit plate can push the movable plate to move while moving.

[0007] The unlocking limit plate is provided with an inner opening button and an elastic member capable of resetting the unlocking limit plate. The end of the unlocking limit plate is swingably connected to the movable plate. One end of the inner opening button is located outside the lock shell. When the inner opening button is pressed, the other end of the unlocking limit plate swings to avoid the dial.

[0008] The movable plate is provided with a connecting plate 1, the password plate is provided with an avoidance hole, the connecting plate is provided with a swing hole, the end of the unlocking limit plate is provided with a connecting plate 2 inserted into the swing hole, and the connecting plate 2 can swing in the swing hole.

[0009] The password plate is provided with a guide column, and the unlocking limit plate is provided with a guide hole matched with the guide column.

[0010] The elastic member is a spring and is arranged on the guide column. One end of the spring abuts against the password plate and the other end of the spring abuts against the unlocking limit plate.

[0011] The straight tongue plate is provided with a pulling groove, and the pulling knob can be inserted into the pulling groove to drive the straight tongue plate to move.

[0012] A guide rod is arranged on the guide column, and a guide groove matched with the guide rod is arranged on the straight tongue plate.

[0013] The beneficial effects of the present invention are as follows: the combination lock is combined with a lock core and a straight tongue plate is added, and the extension or retraction of the straight tongue plate is controlled by the combination lock and the lock core to achieve locking and unlocking, so that one person who knows the password and another person who knows the key can jointly control the opening and closing of the lock, and achieve simultaneous unlocking or locking, thereby meeting the needs of some special occasions and the market demand, and the structure is simple and the modification is small, and the structure of the original combination lock can be fully utilized, and the organic combination of different unlocking methods also increases the difficulty for some people who want to crack the lock, thereby improving the safety of the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a three-dimensional structural view of the present invention;

[0016] Figure 2 It is a structural view of another direction of the present invention;

[0017] Figure 3 It is the internal structure view of the present invention;

[0018] Figure 4 It is an internal structure view of another direction of the present invention;

[0019] Figure 5 It is an internal exploded structural view of the present invention. DETAILED DESCRIPTION

[0020] The advantages and features of the present disclosure and its implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0021] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are only examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.

[0022] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0023] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.

[0024] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0025] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0026] As those skilled in the art can fully understand, the features of the different embodiments of the present disclosure can be coupled or combined with each other in part or in whole, and can cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0027] Reference Figures 1 to 5The present invention discloses a password key composite mechanical lock, comprising a password lock and a lock core 1, wherein the password lock comprises a password plate 2, a movable plate 3, and a rotary knob 4 arranged on the password plate 2, wherein the lock core 1 is mounted on the password plate 2, wherein the above structures are all existing structures and thus are not described in detail, and further comprising a straight tongue plate 5, an unlocking limit plate 6, and a dial knob 7 arranged on the lock core 1, wherein the straight tongue plate 5 is a square plate, wherein the end of the straight tongue plate 5 is thickened to form a lock tongue, which has high strength, wherein the straight tongue plate 5 is arranged at a 90-degree angle with the movable plate 3, wherein the straight tongue plate 5 moves in the horizontal direction, while the movable plate 3 and the unlocking limit plate 6 move in the longitudinal direction, wherein the end of the unlocking limit plate 6 is connected to the movable plate 3, and after the rotary knob 4 is unlocked by the password, the unlocking notch 9 on the rotating wheel 8 will rotate to a position corresponding to the protrusion 10 on the movable plate 3. When the key is inserted into the lock cylinder 1, the dial knob 7 is fixedly connected to the lock core 1 and the lock core is rotated, and the dial knob 7 is also driven to rotate. The lock cylinder 1 is the prior art, and the connection relationship and structure of the dial knob 7 and the lock core are not described in detail. The dial knob 7 rotates with the rotation of the key to push the unlocking limit plate 6 and drive the straight tongue plate 5 to move to achieve unlocking and locking.

[0028] In the above structure, if it is in the locked state, after the password is disrupted, the protrusion 10 on the movable plate 3 is against the outer wall of the rotating wheel 8 and cannot move, and at this time the straight tongue plate 5 is in the extended state and cooperates with the outer lock hole to achieve locking, and the eccentric end 22 of the dial knob 7 is located at a lower position away from the straight tongue plate 5; when unlocking, when the key is inserted into the lock cylinder 1, the dial knob 7 rotates with the rotation of the key, and the eccentric end 22 rotates to the upper side to push the unlocking limit plate 6 and drive the straight tongue plate 5 to move to unlock.

[0029] As a preferred structure, the password plate 2 is provided with a guide column 11, and the unlocking limit plate 6 is provided with a guide hole 12 that cooperates with the guide column 11. The guide hole 12 is a long hole. The above structure can ensure that the unlocking limit plate 6 can move linearly along the guide hole 12 without deflection.

[0030] As a preferred structure, the straight tongue plate 5 is provided with a pull groove 13, and in the present application, there are two pull grooves 13. The pull knob 7 can be inserted into the pull groove 13 to drive the straight tongue plate 5 to move. When unlocking, the eccentric end 22 of the pull knob 7 can be engaged with one pull groove 13 to drive the straight tongue plate 5 to move. When locking, the eccentric end 22 of the pull knob 7 can be engaged with the other pull groove 13 to drive the straight tongue plate 5 to move in the opposite direction.

[0031] As shown in the figure, the lock core 1 of the present application is provided with a small button 14 for inner opening. The small button 14 is a conventional technical design, so the specific structure and connection relationship are not described in detail. When a person is indoors and someone outside locks the door and scrambles the password, the small button 14 in the room can be used to directly unlock the door, thereby avoiding the risk of the indoor person being accidentally locked. Specifically, the unlocking limit plate 6 is provided with an inner opening button 25 and an elastic member 15 capable of resetting the unlocking limit plate 6. The end of the unlocking limit plate 6 is swingably connected to the movable plate 3. One end of the inner opening button 25 is located outside the lock shell, and when the inner opening button 25 is pressed, the other end of the unlocking limit plate 6 swings and can avoid the dial 7. As long as the indoor person presses the inner opening button 25 to move one end of the unlocking limit plate 6, the unlocking limit plate 6 can be staggered with the dial 7, thereby failing to restrict the dial 7. At this time, the dial 7 is driven to rotate by the small button 14, and the dial 7 can drive the straight tongue plate 5 to move and directly unlock the door.

[0032] As a specific structure, a connecting plate 16 is provided on the movable plate 3, and an avoidance hole 17 is provided on the password plate 2. The connecting plate 16 passes through the avoidance hole 17, and a swing hole 18 is provided on the connecting plate. A connecting plate 2 19 inserted into the swing hole 18 is provided at the end of the unlocking limit plate 6. The connecting plate 2 19 can swing in the swinging hole 18, and the width of the opening of the swinging hole 18 is slightly larger than the thickness of the connecting plate 2 19, so that the connecting plate 2 19 can swing in the swinging hole 18, and the width of the unlocking limit plate 6 is larger than the length of the opening of the swinging hole 18, so that the unlocking limit plate 6 can push against the connecting plate to move the movable plate 3. The above structure is simple and makes full use of the internal space of the password lock for setting.

[0033] As shown in the figure, the specific installation structure of the spring is that the elastic member 15 is a spring and is arranged on the guide column 11, one end of the spring is against the password plate 2 and the other end of the spring is against the unlocking limit plate 6, so that the spring will not deflect when it is compressed or stretched. As a further structure, a guide rod 20 is provided on the guide column 11, and the guide column 11 is thicker than the guide rod 20. The straight tongue plate 5 is provided with a guide groove 21 that cooperates with the guide rod 20. In this way, the overlapping design of the guide column 11 and the guide rod 20 not only saves space, but also the guide column 11 can limit the straight tongue plate 5 to prevent it from slipping out of the guide rod 20. Of course, the other side of the straight tongue plate 5 is limited by the bottom plate 23 fixed to the lock box 24, and the straight tongue plate 5 can also limit the unlocking limit plate 6 from slipping out of the guide column 11.

[0034] A combination mechanical lock with a password key provided in an embodiment of the present invention is introduced in detail above. Specific examples are used herein to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for a person skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A combination key mechanical lock, comprising a combination lock and a lock core, wherein the combination lock comprises a combination plate, a movable plate, and a knob disposed on the combination plate, and the lock core is mounted on the combination plate, characterized in that: It also includes a straight tongue plate, an unlocking limit plate, and a dial knob arranged on the lock core. The end of the straight tongue plate is provided with a lock tongue. The end of the unlocking limit plate is connected to the movable plate. After the knob is turned to unlock, the dial knob can rotate with the rotation of the key to lift the unlocking limit plate and drive the straight tongue plate to move to achieve unlocking and locking. The unlocking limit plate can also push the movable plate to move while moving.

2. A combination key mechanical lock according to claim 1, characterized in that: The unlocking limit plate is provided with an inner opening button and an elastic member capable of resetting the unlocking limit plate. The end of the unlocking limit plate is swingably connected to the movable plate. One end of the inner opening button is located outside the lock shell. When the inner opening button is pressed, the other end of the unlocking limit plate swings to avoid the dial.

3. A combination key mechanical lock according to claim 2, characterized in that: The movable plate is provided with a connecting plate 1, the password plate is provided with an avoidance hole, the connecting plate is provided with a swing hole, the end of the unlocking limit plate is provided with a connecting plate 2 inserted into the swing hole, and the connecting plate 2 can swing in the swing hole.

4. A combination key mechanical lock according to claim 1, characterized in that: The password plate is provided with a guide column, and the unlocking limit plate is provided with a guide hole matched with the guide column.

5. A combination key mechanical lock according to claim 4, characterized in that: The elastic member is a spring and is arranged on the guide column. One end of the spring abuts against the password plate and the other end of the spring abuts against the unlocking limit plate.

6. The combination key mechanical lock according to claim 1, characterized in that: The straight tongue plate is provided with a pulling groove, and the pulling knob can be inserted into the pulling groove to drive the straight tongue plate to move.

7. A combination key mechanical lock according to claim 4, characterized in that: A guide rod is arranged on the guide column, and a guide groove matched with the guide rod is arranged on the straight tongue plate.

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