Locking device for cabinet door of storage cabinet

Abstract

The utility model particularly relates to the technical field of storage cabinets, and discloses a storage cabinet door locking device which comprises a cabinet body, a door plate is rotatably connected to the side wall of the cabinet body, a limiting groove is formed in the door plate, a lock cylinder is rotatably connected to the interior of the limiting groove, a spring bolt is fixedly connected to the middle of the side wall of the lock cylinder, and the spring bolt is fixedly connected to the side wall of the cabinet body. A clamping block is fixedly connected to the side wall, close to the spring bolt, of the cabinet body, a telescopic rod is fixedly connected to the side wall, close to the door plate, of the clamping block, and a spring is wound around the outer surface of the telescopic rod. Through the arrangement of the limiting groove, the lock cylinder, the lock tongue, the clamping block, the telescopic rod, the spring and the supporting plate, the internal size of the limiting groove is matched with the external size of the lock cylinder, rotation of the lock cylinder is facilitated, when the lock tongue rotates out of the clamping block, the elastic force of the spring acts on the side wall of the supporting plate, the door plate can be rotated and bounced open, the convenience of opening the door plate is improved, and the service life of the door plate is prolonged. The telescopic rod can limit lateral displacement of the spring, and the telescopic stability of the spring is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lockers, and in particular relates to a locker door locking device. Background Art

[0002] Lockers are generally divided into household lockers and business lockers, etc. They are mainly used to facilitate people's use, store different items, and classify them. Moreover, for families or dormitories with small spaces, they are essential items. They can make full use of the space to accommodate more daily necessities, and can also decorate people's home environment well. Lockers are usually provided with locking devices on the doors to limit the rotation of the doors and improve the stability of the doors.

[0003] Existing locker door locking devices usually include a lock core, a lock tongue and a card block. The lock core is rotatably connected to the cabinet door, and the card block is fixed to the inner wall of the locker. The key is inserted into the interior of the lock core, and the lock tongue is driven to move by turning the key. When the lock tongue is clamped in the interior of the card block, the movement of the cabinet door can be restricted, thereby achieving cabinet door locking.

[0004] When the existing locker door locking device is in use, since the door has a certain dead weight, after the operator turns the key to release the limit of the lock tongue, the operator still needs to turn the door to open the locker, thereby reducing the convenience of opening the door. Utility Model Content

[0005] The utility model provides a locker door locking device, aiming to solve the problem that when the existing locker door locking device is in use, since the door has a certain dead weight, after the operator turns the key to release the limit of the lock tongue, the operator still needs to turn the door to open the locker, thereby improving the convenience of opening the door.

[0006] The utility model is implemented as follows: a cabinet door locking device comprises a cabinet body, a door panel is rotatably connected to the side wall of the cabinet body, a limiting groove is arranged inside the door panel, a lock core is rotatably connected inside the limiting groove, a lock tongue is fixedly connected to the middle position of the side wall of the lock core, a clamping block is fixedly connected to the side wall of the cabinet body close to the lock tongue, a telescopic rod is fixedly connected to the side wall of the clamping block close to the door panel, a spring is wound on the outer surface of the telescopic rod, the other end of the telescopic rod is fixedly connected to a support plate, and the support plate is circularly supported on the side wall of the door panel.

[0007] Preferably, a limiting door frame is fixedly connected to the inner wall of the cabinet body close to the door panel, and the limiting door frame is in a U-shape. The outer dimensions of the limiting door frame are matched with the outer dimensions of the door panel, so as to limit the displacement of the door panel.

[0008] Preferably, a clamping groove is provided on the side wall of the position-limiting door frame close to the door panel, and a sealing ring is clamped inside the clamping groove. The sealing ring is made of rubber material, thereby improving the sealing performance of the door panel.

[0009] Preferably, a handle is fixedly connected to the side wall of the door panel away from the limiting door frame, and the handle is U-shaped to facilitate the rotation of the door panel.

[0010] Preferably, the lock core is cylindrical and matches the inner size of the limiting groove. A plug-in groove is provided on the side wall of the lock core away from the lock tongue. The plug-in groove is cross-shaped to facilitate the rotation of the lock core.

[0011] Preferably, the locking tongue and the clamping block are both L-shaped, and the locking tongue is clamped inside the clamping block, thereby improving the stability of the locking tongue clamping.

[0012] Preferably, a key core is inserted into the interior of the insertion slot, the outer dimensions of the key core are matched with the inner dimensions of the insertion slot, the end of the key core is fixedly connected with an end handle, and anti-slip grooves are provided on both side walls of the end handle, thereby improving the convenience of rotating the key core.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] Firstly, by providing a limiting groove, a lock core, a lock tongue, a card block, a telescopic rod, a spring and a support plate, the inner size of the limiting groove is matched with the outer size of the lock core, so that the rotation of the lock core is convenient. When the lock tongue rotates out of the card block, the elastic force of the spring acts on the side wall of the support plate, so that the door panel can be rotated and bounced open, thereby improving the convenience of opening the door panel. The telescopic rod can limit the lateral displacement of the spring, thereby improving the stability of the spring expansion and contraction. Secondly, by providing a limiting door cover, a card slot and a sealing ring, the limiting door cover is in a U-shape, which can limit the rotation displacement of the door panel, thereby avoiding excessive rotation of the door panel. The sealing ring is made of rubber material, which can improve the sealing of the connection between the door panel and the limiting door cover, thereby improving the sealing of the cabinet door installation. Finally, by providing a key core and an end handle, the outer size of the key core is matched with the inner size of the plug-in slot, which is convenient for card connection and limiting. The rotation of the lock core can be achieved by rotating the end handle, thereby facilitating the rotation and adjustment of the lock tongue. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the top structure of the utility model.

[0016] Figure 2 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0017] Figure 3 It is a front view structural diagram of the lock core of the present utility model.

[0018] Figure 4It is a schematic diagram of the front cross-sectional structure of the lock core of the present utility model.

[0019] The accompanying drawings are marked as follows: 1. cabinet body; 2. door panel; 3. limit door cover; 4. handle; 5. limit groove; 6. lock core; 7. lock tongue; 8. clamping block; 9. telescopic rod; 10. spring; 11. support plate; 12. clamping groove; 13. sealing ring; 14. plug-in groove; 15. key core; 16. end handle. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] See also Figure 1-4 The embodiment of the utility model provides a locker door locking device, comprising a cabinet body 1, a door panel 2 is rotatably connected to the side wall of the cabinet body 1, a limiting groove 5 is provided inside the door panel 2, a lock core 6 is rotatably connected inside the limiting groove 5, the lock core 6 is cylindrical and matches the inner size of the limiting groove 5, and can limit the lateral displacement of the lock core 6, a lock tongue 7 is fixedly connected to the middle position of the side wall of the lock core 6, a clamping block 8 is fixedly connected to the side wall of the cabinet body 1 near the lock tongue 7 by welding, the clamping block 8 passes through the limiting groove 5, the lock tongue 7 and the clamping block 8 are both L-shaped, the lock tongue 7 is clamped inside the clamping block 8, and the lock tongue 7 is improved. For the stability of the clamping connection, a telescopic rod 9 is fixedly connected to the side wall of the clamping block 8 close to the door panel 2 by bolts, a spring 10 is wound around the outer surface of the telescopic rod 9, and the other end of the telescopic rod 9 is fixedly connected to a support plate 11 by welding. The support plate 11 is circularly supported on the side wall of the door panel 2, and the support plate 11 can limit the displacement of the end of the spring 10. When the lock tongue 7 rotates out of the inside of the clamping block 8, the elastic force of the spring 10 acts on the side wall of the support plate 11, so that the door panel 2 can be rotated and opened, thereby improving the convenience of opening the door panel 2. The telescopic rod 9 can limit the lateral displacement of the spring 10 and improve the stability of the expansion and contraction of the spring 10.

[0023] A limiting door frame 3 is fixedly connected to the inner wall of the cabinet body 1 close to the door panel 2, and a handle 4 is fixedly connected to the side wall of the door panel 2 away from the limiting door frame 3. The handle 4 is U-shaped, which is convenient for the operator to lift and rotate the door panel 2. The limiting door frame 3 is in a U-shape. The external dimensions of the limiting door frame 3 are matched with the external dimensions of the door panel 2, which can limit the displacement of the door panel 2. A snap-in groove 12 is opened on the side wall of the limiting door frame 3 close to the door panel 2, and a sealing ring 13 is snapped inside the snap-in groove 12. The sealing ring 13 is made of rubber, which improves the sealing of the door panel 2.

[0024] An insertion groove 14 is provided on the side wall of the lock core 6 away from the lock tongue 7. The insertion groove 14 is cross-shaped to facilitate the rotation of the lock core 6. A key core 15 is inserted into the inside of the insertion groove 14. The outer size of the key core 15 is matched with the inner size of the insertion groove 14. An end handle 16 is fixedly connected to the end of the key core 15. Anti-slip grooves are provided on both side walls of the end handle 16, which increases the friction resistance on the surface of the end handle 16 and improves the anti-slip performance. The lock core 6 can be rotated by rotating the end handle 16, thereby facilitating the rotation adjustment of the lock tongue 7.

[0025] Working principle: When using this type of locker door locking device, the operator first inserts the key core 15 into the inside of the insertion slot 14. The outer size of the key core 15 is matched with the inner size of the insertion slot 14, which is convenient for card connection and limiting. The end handle 16 is a disc-shaped surface with an anti-slip groove. By rotating the end handle 16, the lock core 6 can be driven to rotate inside the limiting slot 5, thereby facilitating the rotation adjustment of the lock tongue 7. When the lock tongue 7 rotates out of the inside of the card block 8, the elastic force of the spring 10 acts on the side wall of the support plate 11, which can make the door panel 2 rotate and open, thereby improving the convenience of opening the door panel 2. The telescopic rod 9 can limit the lateral displacement of the spring 10 and improve the stability of the extension and contraction of the spring 10.

[0026] Secondly, the limiting door frame 3 is in the shape of a Chinese character “U” and is adapted to the external dimensions of the door panel 2. The limiting door frame 3 can limit the rotational displacement of the door panel 2 to prevent the door panel 2 from colliding with the block 8 due to excessive rotation. The sealing ring 13 is made of rubber material to improve the sealing of the connection between the door panel 2 and the limiting door frame 3, thereby improving the sealing of the cabinet door installation.

[0027] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0028] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0029] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0030] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A locker door locking device, characterized in that: The invention comprises a cabinet body (1): a door panel (2) is rotatably connected to the side wall of the cabinet body (1), a limiting groove (5) is provided inside the door panel (2), a lock core (6) is rotatably connected inside the limiting groove (5), a lock tongue (7) is fixedly connected to the middle position of the side wall of the lock core (6), a clamping block (8) is fixedly connected to the side wall of the cabinet body (1) close to the lock tongue (7), a telescopic rod (9) is fixedly connected to the side wall of the clamping block (8) close to the door panel (2), a spring (10) is wound around the outer surface of the telescopic rod (9), and a support plate (11) is fixedly connected to the other end of the telescopic rod (9), and the support plate (11) is circularly supported on the side wall of the door panel (2).

2. A locker door locking device according to claim 1, characterized in that: A limiting door frame (3) is fixedly connected to the inner side wall of the cabinet body (1) close to the door panel (2); the limiting door frame (3) is in the shape of a Chinese character “Yu”, and the outer dimensions of the limiting door frame (3) are compatible with the outer dimensions of the door panel (2).

3. A locker door locking device according to claim 2, characterized in that: A clamping groove (12) is provided on the side wall of the position-limiting door cover (3) close to the door panel (2), a sealing ring (13) is clamped inside the clamping groove (12), and the sealing ring (13) is made of rubber material.

4. A locker door locking device according to claim 3, characterized in that: A handle (4) is fixedly connected to the side wall of the door panel (2) away from the position-limiting door frame (3), and the handle (4) is U-shaped.

5. The locker door locking device according to claim 1, characterized in that: The lock core (6) is cylindrical and matches the internal dimensions of the limiting groove (5). A plug-in groove (14) is provided on the side wall of the lock core (6) away from the lock tongue (7), and the plug-in groove (14) is cross-shaped.

6. The locker door locking device according to claim 1, characterized in that: The locking tongue (7) and the clamping block (8) are both L-shaped, and the locking tongue (7) is clamped inside the clamping block (8).

7. The locker door locking device according to claim 5, characterized in that: A key core (15) is inserted into the insertion slot (14), the outer dimensions of the key core (15) are matched with the inner dimensions of the insertion slot (14), an end handle (16) is fixedly connected to the end of the key core (15), and anti-slip grooves are provided on both side walls of the end handle (16).

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