Box body coded lock

Abstract

The utility model discloses a box coded lock. The problem that a rotary knob type unlocking structure is adopted in an existing box body coded lock, and large operation space is needed is mainly solved. The lock tongue is movably mounted on the lock body and comprises a locking position and an unlocking position, the locking position is matched with the lock plate in a limiting manner so that the box body can be locked and cannot be opened, and the unlocking position is separated from the lock plate so that the box body can be opened; the button is movably installed on the lock body, at least part of the button is arranged outside the lock body and used for manual operation, and the button is used for driving the spring bolt to be in the unlocking position when pressed down; the coded lock assembly comprises an ejector rod, and when the coded lock assembly is in the code protection state, the ejector rod directly or indirectly abuts against the button so that the button cannot be pressed down; and when the coded lock assembly is in a correct code state, the coded lock assembly can stretch out and draw back, and the button can be pressed down. The utility model provides a box body coded lock, which adopts a button structure, and is small in required operation space, compact in integral structure and high in generality.

Description

Technical Field

[0001] This utility model relates to the field of locks, specifically to a combination lock for a box. Background Art

[0002] Boxes, especially motorcycle trunks, are usually locked or unlocked with a key. In recent years, boxes using combination locks have appeared on the market. For example, Chinese patent with publication number CN 212149122U uses a knob-type unlocking structure. The manual operation of the knob is easily restricted by the lower edge of the upper box, requiring a large operating space and making it difficult to operate. It also places high demands on the structure of the box. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a combination lock for a box, which mainly solves the problem that the current combination locks for boxes use a knob-type unlocking structure, which requires a large operating space.

[0004] The technical solution of this utility model is as follows:

[0005] A combination lock for a lock box includes a lock body installed in a first lock box and a lock plate installed in a second lock box, and also includes...

[0006] The latch is movably mounted on the lock body, and includes a locking position that cooperates with the lock plate to lock the box and prevent it from being opened, and an unlocking position that separates from the lock plate and allows the box to be opened;

[0007] A button is movably mounted on the lock body, with at least a portion of the button located outside the lock body for manual operation. When pressed, the button drives the bolt to the unlocked position.

[0008] The combination lock assembly includes a push rod, which, when the combination lock assembly is in combination protection mode, directly or indirectly presses against the button to prevent it from being pressed; and

[0009] The combination lock component can be extended or retracted when the password is correct, at which point the button can be pressed.

[0010] The lock body is provided with a first sliding groove, and the lock tongue slides in cooperation with the first sliding groove.

[0011] The lock body is provided with an opening groove, which communicates with the first sliding groove and is used for part of the lock plate to extend into and cooperate with the lock tongue.

[0012] The lock body is provided with a first elastic element, and the elastic force of the first elastic element is used to drive the lock tongue to the locked position.

[0013] The lock body is provided with a second slide groove, and the button slides in conjunction with the second slide groove.

[0014] The button is located above the combination lock assembly, and the push rod cooperates with the button through a transmission mechanism.

[0015] The transmission mechanism includes a lever rotatably disposed within the lock body and a locking member movably installed within the lock body opposite to the bolt. One end of the lever is in contact with the push rod, and the other end is in contact with the locking member. When the combination lock assembly is in the combination protection state, the locking member engages with the button to prevent the button from being pressed.

[0016] The lock body is provided with a third sliding groove, and the locking member slides in cooperation with the third sliding groove.

[0017] The button has a first inclined surface, and the locking member has a second inclined surface that cooperates with the first inclined surface.

[0018] The latch is provided with a hook, and the lock plate is provided with a locking groove that cooperates with the hook.

[0019] The beneficial effects of this utility model are: This utility model provides a combination lock for a box, which adopts a button structure, requires less operating space, and has a compact overall structure and high versatility. Attached Figure Description

[0020] Figure 1 This is a perspective view of one embodiment of the present invention.

[0021] Figure 2 This is a cross-sectional schematic diagram of one embodiment of the present invention.

[0022] Figure 3 This is an exploded view of one embodiment of the present invention.

[0023] Figure 4 This is a partial explosion diagram of one embodiment of the present invention.

[0024] Figure 5 This is a partial explosion diagram of one embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings: As shown in the figures, a combination lock for a box includes a lock body 1 installed in a first box and a lock plate 2 installed in a second box. It also includes a latch 3 movably mounted on the lock body, which includes a locked position that cooperates with the lock plate to lock the box in a way that prevents it from opening, and an unlocked position that separates from the lock plate to allow the box to be opened. A button 4 is movably mounted on the lock body, at least part of which is located outside the lock body for manual operation. When pressed, the button drives the latch to the unlocked position. A combination lock assembly 5 includes a push rod 51, which directly or indirectly presses against the button when the combination lock assembly is in a password protection state, preventing it from being pressed. The push rod is also retractable when the combination lock assembly is in a correct password state, at which time the button can be pressed.

[0026] The working principle of the combination lock component is existing technology and will not be elaborated here. You can refer to Chinese patent with publication number CN 212149122 U. Its basic principle is that when the password is wrong, the lever will not retract, and when the password is correct, the lever can retract.

[0027] Based on this, when the password is incorrect, the push rod will firmly press (directly or indirectly) against the button, preventing it from being pressed. At this time, the cabinet cannot be opened. On the other hand, the lock body can be installed in the lower cabinet, and the lock plate can be installed in the upper cabinet. The upper and lower cabinets can be installed together by means of hinges, etc. The limiting cooperation between the lock tongue and the lock plate can be achieved by means of slots and blocks. When the password is correct, the push rod can extend and retract. At this time, it cannot prevent the button from being pressed. When the button is pressed, it drives the lock tongue to leave the lock plate, and the cabinet can move.

[0028] In this embodiment, as shown in the figure, the lock body is provided with a first slide groove 11, and the lock tongue slides in conjunction with the first slide groove. The lock tongue moves within the first slide groove, which serves as a guide, allowing the lock tongue to move back and forth.

[0029] In this embodiment, as shown in the figure, the lock body is provided with an opening groove 12. The opening groove communicates with the first sliding groove and is used for part of the lock plate to extend into and engage with the lock tongue. The lock plate can extend into the first sliding groove through the opening groove to engage with the lock tongue.

[0030] In this embodiment, as shown in the figure, the lock body is provided with a first elastic element 13. The elastic force of the first elastic element is used to drive the bolt to the locked position. The first elastic element can be a spring, and its function is to provide a preload force on the lock top, that is, after the button returns to its original position, the bolt can be reset by the first elastic element.

[0031] In this embodiment, as shown in the figure, the lock body is provided with a second slide groove 14, and the button slides in conjunction with the second slide groove. The button moves within the second slide groove, which serves as a guide. Simultaneously, a spring 141 can be installed within the second slide groove to provide a reset function for the button.

[0032] In this embodiment, as shown in the figure, the button is located above the combination lock assembly, and the push rod cooperates with the button through a transmission mechanism. This makes more efficient use of space.

[0033] In this embodiment, as shown in the figure, the transmission mechanism includes a lever 61 rotatably disposed in the lock body and a locking member 62 movably installed in the lock body opposite to the lock tongue. One end of the lever is pressed against the top rod, and the other end is pressed against the locking member. When the combination lock assembly is in the combination protection state, the locking member is limited by the button to prevent the button from being pressed.

[0034] In this embodiment, as shown in the figure, the lock body is provided with a third slide groove 15, and the locking member slides in conjunction with the third slide groove. The locking member moves within the third slide groove and moves back and forth under the action of the lever and the button.

[0035] In this embodiment, as shown in the figure, the button has a first inclined surface 41, and the locking member has a second inclined surface 621 that cooperates with the first inclined surface. In the unlocked state, the first inclined surface can push the second inclined surface to disengage the locking member, allowing the button to be pressed; conversely, it locks the button.

[0036] In this embodiment, as shown in the figure, the latch is provided with a hook 33, and the lock plate is provided with a locking groove 23 that cooperates with the hook. When locked, the hook extends into the locking groove. This part is prior art and will not be described in detail.

[0037] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. The embodiments should not be considered as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A combination lock for a lockbox, comprising a lock body (1) installed in a first lockbox and a lock plate (2) installed in a second lockbox, characterized in that: Also includes The latch (3) is movably mounted on the lock body, and includes a locking position that cooperates with the lock plate to lock the box and prevent it from being opened, and an unlocking position that separates from the lock plate and allows the box to be opened; Button (4), movably mounted on the lock body, at least part of the button is located outside the lock body for manual operation, and when pressed, it drives the bolt to the unlock position; The combination lock assembly (5) includes a push rod (51), which, when the combination lock assembly is in the combination protection state, directly or indirectly presses against the button to prevent it from being pressed; and The combination lock component can be extended or retracted when the password is correct, at which point the button can be pressed.

2. A combination lock for a lock body according to claim 1, characterized in that: The lock body is provided with a first slide groove (11), and the lock tongue slides in cooperation with the first slide groove.

3. A combination lock for a lock body according to claim 2, characterized in that: The lock body is provided with an opening groove (12), which is connected to the first sliding groove and is used for part of the lock plate to extend into and cooperate with the lock tongue.

4. A combination lock for a lock body according to claim 1, characterized in that: The lock body is provided with a first elastic element (13), and the elastic force of the first elastic element is used to drive the lock tongue to the locked position.

5. A combination lock for a lock body according to claim 1, characterized in that: The lock body is provided with a second slide groove (14), and the button slides in cooperation with the second slide groove.

6. A combination lock for a lock body according to claim 1, characterized in that: The button is located above the combination lock assembly, and the push rod cooperates with the button through a transmission mechanism.

7. A combination lock for a lock body according to claim 6, characterized in that: The transmission mechanism includes a lever (61) rotatably disposed in the lock body and a locking member (62) movably installed in the lock body opposite to the lock tongue. One end of the lever is pressed against the top rod, and the other end is pressed against the locking member. When the combination lock assembly is in the password protection state, the locking member is limited by the button to prevent the button from being pressed.

8. A combination lock for a lock body according to claim 7, characterized in that: The lock body is provided with a third slide groove (15), and the locking member slides in cooperation with the third slide groove.

9. A combination lock for a lock body according to claim 8, characterized in that: The button has a first inclined surface (41), and the locking member has a second inclined surface (621) that cooperates with the first inclined surface.

10. A combination lock for a lock body according to claim 1, characterized in that: The latch is provided with a hook (33), and the lock plate is provided with a locking groove (23) that cooperates with the hook.

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