Lock catch structure of cabinet

Abstract

The utility model relates to a lock catch structure of a cabinet, which comprises a cover plate and a front side plate, an elastic sheet which extends downwards is arranged on the cover plate, a step surface which extends transversely is formed on the side part, facing the outer side, of the elastic sheet, and a limiting plate which extends transversely is arranged on the front side plate. Meanwhile, the limiting plate is further provided with a limiting hole penetrating up and down, when the cover plate is closed, the elastic piece can be inserted into the limiting hole from top to bottom, and the step face on the elastic piece moves outwards under the elastic effect of the elastic piece and abuts against the bottom of the limiting plate, so that the cover plate is automatically locked on the front side plate; and the step surface can be separated from the limiting plate only by lightly pushing and pressing the elastic sheet, so that the cover plate is unlocked and opened. In addition, the lock catch structure has the advantages of being simple in structure, low in cost, convenient to control, easy to maintain and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, and in particular to a lock structure of a cabinet. Background Art

[0002] A lock is a device used to connect or fix two or more objects. It is usually composed of one or more parts. It can connect objects together by insertion, snapping, rotation, etc., to play the role of fixing, locking or sealing. It has a wide range of applications. At present, many families place cabinets in their outdoor courtyards to store garden tools or other sundries, so that the courtyard looks more tidy and beautiful. The cover of the existing cabinet can be opened or closed. After the cover is closed, the cover can be locked on the cabinet by setting a suitable lock.

[0003] For example, the Chinese utility model patent "A cabinet lock structure" with application number 201620661877.X (authorization announcement number CN206137622U) discloses a lock structure, which includes a cover plate and a front side plate. The front side of the back of the cover plate is fixed with reinforcing rods distributed in the left and right directions, and a lock extending downward is formed on the reinforcing rod. A recessed portion concave inwardly is formed on the outer side of the front side plate near the upper edge, and a lock hole is opened on the recessed portion for cooperating with the lock. When the cover plate is closed, the lock can pass through the lock hole. Although the lock structure is very simple, it is relatively practical and reliable.

[0004] However, this type of lock structure also has some shortcomings: the lock does not have a self-locking function. When the cover is closed, the cover and the cabinet are still loose, which makes it easy for the cover and the cabinet to shake relative to each other when moving; in addition, if the lock is not locked in time, the cover can still be opened unintentionally due to external force.

[0005] Therefore, how to provide a locking structure with simple structure, low cost, easy operation, and self-locking function so that the cover of the cabinet is always in a locked state when closed is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a cabinet lock structure with a simple structure, low cost, easy operation and a self-locking function so that the cover of the cabinet is always in a locked state when closed, in view of the above-mentioned prior art.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: a lock structure of a cabinet, including a cover plate and a front side plate, the cover plate is provided with a spring sheet extending downward and having elasticity, the side of the spring sheet facing outward is formed with a transversely arranged step surface, the front side plate is provided with a transversely extending limit plate, the limit plate is provided with a limit hole penetrating up and down, when the cover plate is in a covered state, the spring sheet can be inserted into the limit hole from top to bottom, and the step surface moves outward under the elastic action of the spring sheet and abuts against the bottom of the limit plate, so that the cover plate is automatically locked on the front side plate.

[0008] In order to facilitate the insertion of the spring sheet and to better drive the spring sheet to perform the unlocking action, preferably, when the spring sheet is inserted into the limiting hole and is in a locked state, a clearance space is formed between the inner side wall of the limiting hole and the spring sheet to enable the spring sheet to deform and move, and by pushing the spring sheet inward, the step surface can be separated from the limiting plate and the cover plate can be unlocked and opened.

[0009] In order to better guide the spring piece to enter the limiting hole from bottom to top, preferably, the bottom contour of the spring piece is an outer arc shape, and an inclination angle is formed at the outer edge of the bottom of the spring piece. Correspondingly, the upper edge of the limiting hole is also formed with an inclined surface that can adapt to the inclination angle. During the insertion process of the spring piece from bottom to top, the inclination angle can squeeze the inclined surface and guide the spring piece to enter the limiting hole.

[0010] In order to make the spring sheet have better elasticity so that the buckle on the plug can be better locked or unlocked, preferably, the spring sheet includes an elastic part and a pressing part, the step surface is arranged between the elastic part and the pressing part, and the elastic part is also provided with a plurality of through grooves for increasing the elasticity, and the elastic part can be deformed by pressing the pressing part inward.

[0011] In order to make the cooperation between the spring piece and the limiting hole more stable and reliable, preferably, the side wall on the outer side of the limiting hole is an outer arc surface, and the cross-sections of the elastic part and the pressing part are both outer arc shapes that are compatible with the outer arc surface.

[0012] In order to facilitate production and manufacturing, and to reduce costs during subsequent maintenance and replacement, preferably, a connecting piece is detachably provided at the bottom of the cover plate, and the aforementioned spring sheet is provided on the connecting piece.

[0013] In order to better realize the detachable connection between the cover plate and the connecting member, preferably, a fastener is also included, the cover plate is provided with screw holes extending up and down, the connecting member is provided with mounting holes corresponding to the screw holes, the fastener passes through the mounting holes from bottom to top and is threadedly connected to the screw holes, so that the cover plate and the connecting member can be detachably connected together.

[0014] In order to optimize the overall structure of the connecting piece so that it can better connect the cover plate and the front side plate, preferably, the connecting piece also includes a mounting portion, the spring sheet is connected to the bottom of the mounting portion and extends downward, and the mounting hole is provided on the mounting portion.

[0015] In order to prevent the limiting plate and the spring sheet from protruding from the front side plate and affecting the appearance, preferably, the front side plate is also provided with a groove, and the limiting plate is arranged in the groove. When the cover plate is in the closed and locked state, the front end side wall of the cover plate is flush with the front side plate.

[0016] Compared with the prior art, the utility model has the advantages of: by setting a spring sheet extending downward and having elasticity on the cover plate, and forming a laterally extending step surface on the side of the spring sheet facing outward, and also setting a laterally extending limit plate on the front side plate, and also setting a limit hole penetrating from top to bottom on the limit plate, when the cover plate is in the closed state, the spring sheet here can be inserted into the limit hole from top to bottom, and the step surface on the spring sheet moves outward and abuts against the bottom of the limit plate under the elastic action of the spring sheet itself, so that the cover plate is automatically locked on the front side plate, and when the cover plate needs to be opened, the spring sheet only needs to be gently pushed to make the step surface separate from the limit plate and the cover plate is unlocked and opened. In addition, the lock structure also has the characteristics of simple structure, low cost, convenient operation and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of this embodiment (the cover is in a closed state);

[0018] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the decomposed state of the middle part A;

[0020] Figure 4 for Figure 1 A schematic diagram of the exploded structure of part A from another angle;

[0021] Figure 5 for Figure 1 A schematic cross-sectional view of the middle section A;

[0022] Figure 6 Schematic diagram of the three-dimensional structure of the connecting piece in this embodiment. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] Figures 1 to 6What is shown is a schematic diagram of this embodiment. The locking structure in this embodiment mainly includes a cover plate 1, a front side plate 2, a connecting member 3, etc.

[0025] refer to Figures 1 to 4 As shown, the cover plate 1 is provided with a spring piece 1a extending downward and having elasticity, and a laterally arranged step surface 1a1 is formed on the side of the spring piece 1a facing outward, and a laterally extending limit plate 2a is provided on the front side plate 2, and a limit hole 2a1 penetrating from top to bottom is provided on the limit plate 2a. When the cover plate 1 is in a covered state, the spring piece 1a can be inserted into the limit hole 2a1 from top to bottom, and the step surface 1a1 moves outward under the elastic action of the spring piece 1a and abuts against the bottom of the limit plate 2a, so that the cover plate 1 is automatically locked on the front side plate 2. When the cover plate needs to be unlocked and opened, the step surface 1a1 can be separated from the limit plate 2a by pushing the spring piece 1a inward, so that the cover plate 1 is unlocked and opened.

[0026] In order to facilitate the movement of the spring piece 1a so as to better utilize the external force to drive the spring piece 1a to unlock, refer to Figure 5 As shown, in this embodiment, when the spring piece 1a is inserted into the limiting hole 2a1 and is in a locked state, a clearance space 1b is formed between the inner side wall of the limiting hole 2a1 and the spring piece 1a, which enables the spring piece 1a to deform and move. By pushing the spring piece 1a inward, the step surface 1a1 can be separated from the limiting plate 2a, so that the cover plate 1 is unlocked and opened.

[0027] Secondly, in order to better guide the spring piece 1a from bottom to top into the limiting hole 2a1, refer to Figure 5 and Figure 6 As shown, the bottom contour of the spring piece 1a in this embodiment is an outer arc shape, and an inclination angle 1a2 is formed at the outer edge of the bottom of the spring piece 1a. Correspondingly, the upper edge of the limiting hole 2a1 is also formed with an inclined surface 2a2 that can adapt to the inclination angle 1a2. During the insertion process of the spring piece 1a from bottom to top, the inclination angle 1a2 can squeeze the inclined surface 2a2 and guide the spring piece 1a into the limiting hole 2a1.

[0028] In addition, in order to make the spring sheet have better elasticity so that the step surface 1a1 on the spring sheet can better perform the locking or unlocking action, refer to Figure 6 As shown, the spring piece 1a in this embodiment includes an elastic portion 1a3 and a pressing portion 1a4, a step surface 1a1 is arranged between the elastic portion 1a3 and the pressing portion 1a4, and a plurality of through grooves 1a5 for increasing elasticity are also arranged on the elastic portion 1a3. The elastic portion 1a3 can be deformed by pressing the portion 1a4 inward.

[0029] In addition, in order to optimize the matching structure between the spring piece 1a and the limiting hole 2a1, the matching between the spring piece 1a and the limiting hole 2a1 can be more stable and reliable. Figures 3 to 6As shown, in this embodiment, the side wall on the outer side of the limiting hole 2a1 is an outer arc surface, and the cross-sections of the elastic portion 1a3 and the pressing portion 1a4 are both outer arc shapes that match the outer arc surface.

[0030] In this embodiment, in order to facilitate the early production and manufacturing, and to reduce the cost of later maintenance, reference is made to Figure 3 and Figure 4 As shown, in this embodiment, a connector 3 is detachably provided at the bottom of the cover plate 1, and a spring sheet 1a is provided on the connector 3. At the same time, in order to better realize a detachable connection between the cover plate 1 and the connector 3, a fastener 4 is further provided, and a screw hole 1c extending up and down is provided on the cover plate 1, and a mounting hole 3a corresponding to the screw hole 1c is provided on the connector 3. The fastener 4 passes through the mounting hole 3a from bottom to top and is threadedly connected to the screw hole 1c, so that the cover plate 1 and the connector 3 can be detachably connected together.

[0031] It should be noted that in order to optimize the overall structure of the connector 3 so that it can better connect the cover plate 1 and the front side plate 2, Figure 6 As shown, the connecting member 3 further includes a mounting portion 3b, the spring sheet 1a is connected to the bottom of the mounting portion 3b and extends downward, and the mounting hole 3a is provided on the mounting portion 3b.

[0032] refer to Figures 1 to 3 As shown, in this embodiment, in order to prevent the limiting plate 2b and the spring sheet 1a from protruding from the front side plate 2 and affecting the appearance, a groove 2b is specially provided on the front side plate 2, and the limiting plate 2a is arranged in the groove 2b. When the cover plate 1 is in the closed and locked state, the front end side wall of the cover plate 1 is flush with the front side plate 2.

[0033] It should be noted that in the description of this embodiment, the terms "front, back", "left, right", "inside, outside", "upper, lower" and the like indicating directions or positional relationships are all based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A lock structure for a cabinet, comprising a cover plate (1) and a front side plate (2), characterized in that: The cover plate (1) is provided with a spring sheet (1a) extending downward and having elasticity, and a laterally arranged step surface (1a1) is formed on the side of the spring sheet (1a) facing outward, and a laterally extending limit plate (2a) is provided on the front side plate (2), and a limit hole (2a1) penetrating from top to bottom is provided on the limit plate (2a). When the cover plate (1) is in a covered state, the spring sheet (1a) can be inserted into the limit hole (2a1) from top to bottom, and the step surface (1a1) moves outward under the elastic action of the spring sheet (1a) and abuts against the bottom of the limit plate (2a), so that the cover plate (1) is automatically locked on the front side plate (2).

2. The lock structure of the cabinet according to claim 1, characterized in that: When the spring sheet (1a) is inserted into the limiting hole (2a1) and is in a locked state, a clearance space (1b) is formed between the inner side wall of the limiting hole (2a1) and the spring sheet (1a) so as to enable the spring sheet (1a) to deform and move. By pushing the spring sheet (1a) inward, the step surface (1a1) can be separated from the limiting plate (2a), thereby unlocking and opening the cover plate (1).

3. The lock structure of the cabinet according to claim 1, characterized in that: The bottom profile of the spring sheet (1a) is in the shape of an outer circular arc, and an inclination angle (1a2) is formed at the outer edge of the bottom of the spring sheet (1a). Correspondingly, an upper edge of the limiting hole (2a1) is also formed with an inclined surface (2a2) that can adapt to the inclination angle (1a2). During the insertion process of the spring sheet (1a) from bottom to top, the inclination angle (1a2) can squeeze the inclined surface (2a2) to guide the spring sheet (1a) into the limiting hole (2a1).

4. The lock structure of the cabinet according to claim 1, characterized in that: The spring sheet (1a) comprises an elastic portion (1a3) and a pressing portion (1a4); the step surface (1a1) is arranged between the elastic portion (1a3) and the pressing portion (1a4); the elastic portion (1a3) is also provided with a plurality of through grooves (1a5) for increasing elasticity; and the elastic portion (1a3) can be deformed by pressing the pressing portion (1a4) inwardly.

5. The lock structure of the cabinet according to claim 4, characterized in that: The side wall on the outer side of the limiting hole (2a1) is an outer arc surface, and the cross sections of the elastic portion (1a3) and the pressing portion (1a4) are both outer arc shapes that match the outer arc surface.

6. The lock structure of the cabinet according to any one of claims 1 to 5, characterized in that: A connecting piece (3) is detachably provided at the bottom of the cover plate (1), and the elastic piece (1a) is arranged on the connecting piece (3).

7. The lock structure of the cabinet according to claim 6, characterized in that: The invention also comprises a fastener (4); the cover plate (1) is provided with a screw hole (1c) extending upward and downward; the connecting member (3) is provided with a mounting hole (3a) corresponding to the screw hole (1c); the fastener (4) passes through the mounting hole (3a) from bottom to top and is then threadedly connected to the screw hole (1c), so that the cover plate (1) and the connecting member (3) can be detachably connected together.

8. The lock structure of the cabinet according to claim 7, characterized in that: The connecting member (3) also includes a mounting portion (3b), the spring sheet (1a) is connected to the bottom of the mounting portion (3b) and extends downward, and the mounting hole (3a) is provided on the mounting portion (3b).

9. The lock structure of the cabinet according to claim 1, characterized in that: The front side plate (2) is also provided with The groove (2b) is provided in the limit plate (2a), and when the cover plate (1) is in a closed and locked state, The front end side wall of the cover plate (1) is flush with the front side plate (2).

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