Coded lock

Abstract

The utility model relates to a coded lock. The coded lock comprises a lock body and a spring bolt seat, the lock body comprises a lock seat, a knob, a spring bolt plate and a coded lock, the knob is rotatably arranged on the lock seat, the spring bolt plate is fixedly connected with the knob, the coded lock is arranged in the knob, the spring bolt seat is used for being matched with the spring bolt plate in a locking mode and provided with a first matching face, a second matching face and a mounting face, and the first matching face and the mounting face are oppositely arranged. The second matching surface is located between the first matching surface and the mounting surface, the second matching surface is orthogonal to the first matching surface, lock holes matched with the spring bolt plate are formed in the first matching surface and the second matching surface, and a first mounting hole is formed in the mounting surface. The lock holes are formed in the first matching surface and the second matching surface which are orthogonal to each other on the lock tongue seat, so that the mounting positions of the lock tongue seat are more diversified, the lock tongue seat can be mounted on the inner wall of a door frame and can also be mounted on the side wall of the door frame, and practicability and convenience are improved.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a combination lock. Background Technology

[0002] To ensure personal privacy and property security, people generally lock cabinet doors or room doors and other places that require locks. Existing locks are generally divided into two types: one is the traditional key lock, which is unlocked by the key and the lock cylinder, and the other is the combination lock, which is mainly a dial combination lock, but there are also numeric keypad combination locks.

[0003] Existing combination locks are very convenient; once the preset combination is entered, the lock opens, allowing the door to be opened. A typical lock consists of a lock body and a bolt seat. The lock body is mounted on the door, and the bolt seat is mounted on the door frame. The bolt plate of the lock body engages with the bolt seat via a locking mechanism, thus locking the door and door frame together. However, in existing technology, the bolt seat can only be installed on the inside of the door frame, and only one keyhole engages with the bolt plate. This limits its usability; for example, some door frames may not be suitable for installing the bolt seat on the inside. Therefore, an upgrade to combination locks is needed. Utility Model Content

[0004] Therefore, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a combination lock.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A combination lock includes a lock body and a bolt seat;

[0007] The lock body includes a lock base, a knob, a latch plate, and a combination lock. The knob is rotatably mounted on the lock base. The latch plate is fixedly connected to the knob. The combination lock is disposed in the knob and is used to lock or unlock the knob's rotation state. The latch base is used to lock and engage with the latch plate. The latch base has a first mating surface, a second mating surface, and a mounting surface. The first mating surface and the mounting surface are opposite to each other. The second mating surface is located between the first mating surface and the mounting surface and is orthogonal to the first mating surface. Both the first and second mating surfaces are provided with lock holes that engage with the latch plate. The mounting surface is provided with a first mounting hole.

[0008] In one embodiment, the latch seat includes a seat body and an anti-pry shell, with a first mating surface, a second mating surface, and a mounting surface formed on the seat body, and the anti-pry shell covering the outside of the seat body to block the first mounting hole.

[0009] As an implementation form, the anti-prying shell is provided with at least two first connecting holes on one side corresponding to the second matching surface, and the anti-prying shell is fixed to the seat body by screwing through the first connecting holes;

[0010] When the lock tongue plate is locked and matched with the lock hole of the second matching surface, the projection of at least one first connecting hole is located within the projection range of the lock tongue plate in the direction perpendicular to the first matching surface.

[0011] As an implementation form, the lock seat comprises a base and a mounting shell, the base is provided with a second mounting hole and a threaded connecting column, the threaded connecting column is connected to the mounting shell by screwing, the mounting shell is mounted on the front surface of the base to shield the second mounting hole, and a mounting cylinder is formed on the mounting shell, and the rotary knob is rotatably mounted in the mounting cylinder.

[0012] As an implementation form, the rotary knob comprises an outer shell and a rotating seat, the rotating seat is rotatably arranged in the mounting cylinder, the password lock is arranged in the rotating seat, the lock tongue plate is fixedly connected to the rotating seat, the outer shell covers the outer side of the mounting cylinder, and the outer shell is provided with a hole position for exposing the password wheel of the password lock.

[0013] As an implementation form, the mounting shell is provided with a second connecting hole matched with the threaded connecting column, and the outer shell shields the second connecting hole when the lock tongue plate is locked and matched with the lock tongue seat.

[0014] As an implementation form, the rotatable angle of the rotary knob is at least 180°.

[0015] As an implementation form, the end of the lock tongue plate is formed with a hook part matched with the lock hole.

[0016] The lock tongue seat is improved in the embodiment, the lock hole is arranged on the first matching surface and the second matching surface which are orthogonal to each other on the lock tongue seat, so that the installation position of the lock tongue seat is more various, the lock tongue seat can be installed on the inner wall of the door frame or the side wall of the door frame, and the practicability and convenience are improved.

[0017] In order to better understand and implement, the following will be described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of one installation state of the password lock in the embodiment of the application;

[0019] Figure 2 It is an exploded structural schematic diagram of the password lock in the embodiment of the application;

[0020] Figure 3Fig. 2 is a schematic view of another installation state of the coded lock in the embodiment of the present application;

[0021] Figure 4 Fig. 3 is a schematic view of a partial cross section of the lock body (with the rotating seat hidden) in the embodiment of the present application;

[0022] Legend of reference signs:

[0023] 1, lock body; 11, lock seat; 111, base; 1110, second mounting hole; 1111, threaded connecting column; 112, mounting shell; 1120, mounting cylinder; 1121, second connecting hole; 12, knob; 121, outer shell; 122, rotating seat; 13, lock tongue plate; 14, coded lock; 2, lock tongue seat; 201, first matching surface; 202, second matching surface; 2001, lock hole; 203, mounting surface; 2031, first mounting hole; 21, seat body; 22, anti-prying shell; 221, first connecting hole. DETAILED DESCRIPTION

[0024] To further illustrate the embodiments, the present application provides the accompanying drawings. These drawings are part of the disclosure of the present application, which mainly serve to illustrate the embodiments, and can be combined with the related description of the specification to explain the operating principle of the embodiments. With reference to these contents, those skilled in the art should understand other possible embodiments and advantages of the present application.

[0025] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated or implied to have a specific orientation, structure and operation, and therefore cannot be understood as limiting the present application.

[0026] Please refer to Figures 1 to 4The embodiment provides a password lock 14, which comprises a lock body 1 and a lock tongue base 2. The lock body 1 comprises a lock base 11, a knob 12, a lock tongue plate 13 and a password lock 14, the knob 12 is rotatably arranged on the lock base 11, the lock tongue plate 13 is fixedly connected with the knob 12, the lock tongue plate 13 can be rotated to an unlocking position or a locking position by rotating the knob 12, the password lock 14 is arranged in the knob 12 and is used for locking or unlocking the rotating state of the knob 12, the password lock 14 can adopt a common structure in the prior art and is not specifically limited in the embodiment, when a user inputs a correct password, the knob 12 is unlocked, so that the user can rotate the knob 12 to drive the lock tongue plate 13 to rotate, when the user breaks the password, the knob 12 is locked, so that the position of the lock tongue plate 13 is locked.

[0027] The lock tongue base 2 is used for locking and matching the lock tongue plate 13, so that the lock body 1 and the lock tongue base 2 are locked with each other. The lock tongue base 2 has a first matching surface 201, a second matching surface 202 and a mounting surface 203, the first matching surface 201 is oppositely arranged with the mounting surface 203, the second matching surface 202 is located between the first matching surface 201 and the mounting surface 203, and the second matching surface 202 is orthogonal to the first matching surface 201, the first matching surface 201 and the second matching surface 202 are both provided with a lock hole 2001 matched with the lock tongue plate 13, and the mounting surface 203 is provided with a first mounting hole 2031, by using a fastener such as a screw to pass through the first mounting hole 2031, the lock tongue base 2 can be mounted on a position to be mounted.

[0028] In actual application, the lock body 1 in the embodiment can be mounted on a door body, and the lock tongue base 2 can be mounted on a door frame, because the lock tongue base 2 in the embodiment has the orthogonal first matching surface 201 and the second matching surface 202, and the first matching surface 201 and the second matching surface 202 are both provided with the lock hole 2001, so, as shown in Figure 3 , when the lock tongue base 2 is mounted on the inner wall of the door frame and faces the periphery of the door body, the lock hole 2001 on the first matching surface 201 opposite to the mounting surface 203 can be locked and matched with the lock tongue plate 13, and when the inner wall of the door frame does not have the condition of mounting the lock tongue base 2, as shown in Figure 1 , the lock tongue base 2 can be mounted on the lateral wall of the door frame and faces the outside, so the lock hole 2001 on the second matching surface 202 can be locked and matched with the lock tongue plate 13.

[0029] As known from the above, the lock tongue base 2 is improved in the embodiment, the lock hole 2001 is arranged on the orthogonal first matching surface 201 and the second matching surface 202 of the lock tongue base 2, so that the mounting position of the lock tongue base 2 is more various, the lock tongue base 2 can be mounted on the inner wall of the door frame or the lateral wall of the door frame, and the practicability and the convenience are improved.

[0030] Preferably, in the present embodiment, the lock tongue seat 2 comprises a seat body 21 and a pick-proof shell 22, the first mating surface 201, the second mating surface 202 and the mounting surface 203 are formed on the seat body 21, and the pick-proof shell 22 covers the outside of the seat body 21 to shield the first mounting hole 2031. The lock tongue seat 2 thus arranged can prevent others from easily disassembling the lock tongue seat 2, thereby improving the security against theft.

[0031] Specifically, the pick-proof shell 22 is provided with at least two first connecting holes 221 on the side corresponding to the second mating surface 202, and the pick-proof shell 22 is fixed to the seat body 21 by screwing through the first connecting holes 221. When the lock tongue plate 13 is locked and fitted in the lock hole 2001 of the second mating surface 202, the projection of at least one first connecting hole 221 in the direction perpendicular to the first mating surface 201 is located within the projection range of the lock tongue plate 13. By such arrangement, in other words, at least one first connecting hole 221 can be shielded by the lock tongue plate 13, and the disassembly performance of the pick-proof shell 22 can be improved, thereby further improving the security.

[0032] Preferably, in the present embodiment, the lock seat 11 comprises a base 111 and a mounting shell 112, the base 111 is provided with a second mounting hole 1110 and a threaded connecting column 1111, and the base 111 can be installed at a desired position (such as a door body) by fastening the base 111 to the desired position through the second mounting hole 1110 by using a screw or the like fastener. The threaded connecting column 1111 is connected to the mounting shell 112 by screwing, the mounting shell 112 is mounted on the front face of the base 111 to shield the second mounting hole 1110, and the mounting shell 112 is formed with a mounting cylinder 1120, and the knob 12 is rotatably mounted in the mounting cylinder 1120. The lock seat 11 thus designed has a reasonable structure and can also play a role in preventing theft.

[0033] Further, the knob 12 comprises an outer shell 121 and a rotating seat 122, the rotating seat 122 is rotatably arranged in the mounting cylinder 1120, the password lock 14 is arranged in the rotating seat 122, the password lock 14 is locked or unlocked by cooperating with the mounting cylinder 1120, the lock tongue plate 13 is fixedly connected to the rotating seat 122, the outer shell 121 covers the outside of the mounting cylinder 1120, and the outer shell 121 is provided with a hole position for exposing the password wheel of the password lock 14.

[0034] The second connecting hole 1121 is matched with the threaded connecting column 1111, and the second connecting hole 1121 is shielded by the outer shell 121 when the lock tongue plate 13 is locked with the lock tongue seat 2, so that the second connecting hole 1121 is prevented from being exposed when locked, and the anti-theft performance is further improved.

[0035] Preferably, the rotatable angle of the knob 12 is at least 180°. In this way, the lock tongue seat 2 can be installed on the left side of the lock body 1 or on the right side of the lock body 1.

[0036] In order to improve the locking firmness when locked, preferably, the end of the lock tongue plate 13 is formed with a hook part matched with the lock hole 2001.

[0037] The above-mentioned embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model scope. It should be pointed out that for ordinary skilled person in the art, several deformations and improvements can be made without departing from the utility model concept, and these all belong to the protection scope of the utility model.

Claims

1. A combination lock, characterized in that, The lock body and the lock bolt; The lock body comprises a lock base, a knob, a lock bolt plate and a password lock, the knob is rotatably arranged on the lock base, the lock bolt plate is fixedly connected with the knob, the password lock is arranged in the knob and is used for locking or unlocking the rotation state of the knob, and the lock bolt base is used for locking the lock bolt plate. The lock bolt base has a first matching surface, a second matching surface and a mounting surface, the first matching surface is arranged opposite to the mounting surface, the second matching surface is located between the first matching surface and the mounting surface, and the second matching surface is orthogonal to the first matching surface. The first matching surface and the second matching surface are both provided with a lock hole matched with the lock bolt plate, and the mounting surface is provided with a first mounting hole.

2. The password lock according to claim 1, characterized in that: The lock bolt base comprises a base body and an anti-prying shell, the first matching surface, the second matching surface and the mounting surface are formed on the base body, and the anti-prying shell is arranged outside the base body to shield the first mounting hole.

3. The password lock according to claim 2, characterized in that: The anti-prying shell is provided with at least two first connecting holes on one side corresponding to the second matching surface, and the anti-prying shell is fixed with the base body by means of screws passing through the first connecting holes; When the lock bolt plate is locked and matched with the lock hole of the second matching surface, the projection of at least one first connecting hole in the direction perpendicular to the first matching surface is located within the projection range of the lock bolt plate.

4. The password lock according to claim 1, characterized in that: The lock base comprises a base and a mounting shell, the base is provided with a second mounting hole and a threaded connecting column, the threaded connecting column is connected to the mounting shell by means of screws, the mounting shell is mounted on the front surface of the base to shield the second mounting hole, and the mounting shell is formed with a mounting cylinder, and the knob is rotatably mounted in the mounting cylinder.

5. The password lock according to claim 4, characterized in that: The knob comprises an outer shell and a rotating seat, the rotating seat is rotatably arranged in the mounting cylinder, the password lock is arranged in the rotating seat, the lock bolt plate is fixedly connected with the rotating seat, the outer shell is arranged outside the mounting cylinder, and the outer shell is provided with a hole position for exposing the password wheel of the password lock.

6. The password lock according to claim 5, characterized in that: The mounting shell is provided with a second connecting hole matched with the threaded connecting column, and when the lock bolt plate is locked and matched with the lock bolt base, the outer shell shields the second connecting hole.

7. The password lock according to any one of claims 1-6, characterized in that: The rotatable angle of the knob is at least 180°.

8. The password lock according to claim 7, characterized in that: The end of the lock bolt plate is formed with a hook matched with the lock hole.

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