Lower box sealing structure applied to self-locking box body

The self-locking box is unlocked and locked by using a springless hook lock and latch plate structure, which solves the problem of easy breakage of springs, extends service life and reduces maintenance costs.

CN223922822UActive Publication Date: 2026-02-17HUNAN UNIV OF TECH
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Patent Information

Application Number
CN202520776629.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-02-17
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

In the existing self-locking enclosure sealing structure, the metal spring is prone to breakage, has a short service life, and results in high maintenance costs.

Method used

The lower sealing box structure adopts a springless structure, and achieves self-locking through the cooperation of hook lock and lock tongue plate. The unlocking and locking operations are completed by the movable engagement of hook lock and lock tongue hook.

Benefits of technology

It extends service life, reduces maintenance costs, and ensures the sealing and structural simplicity of the self-locking enclosure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lower box sealing structure applied to a self-locking box body, which belongs to the technical field of box sealing structures and comprises a spring bolt plate, the top of the spring bolt plate is fixedly connected with a lock cover plate and a lock groove plate, the lock cover plate is fixedly connected with the lock groove plate, a movable hook lock piece is arranged between the lock cover plate and the lock groove plate, and a hook lock hook is arranged at the bottom of the hook lock piece. According to the lower box sealing structure applied to the self-locking box body, self-locking is achieved through the movable hook lock piece, the lock cover plate and the lock groove plate are fixedly connected, when self-locking is needed, the movable hook lock piece drives the hook lock hook to move, the hook lock hook is locked, the hook lock hook is locked, and the lower box sealing structure applied to the self-locking box body is locked. When locking is needed, the hook lock hook of the hook lock piece is moved towards the direction of the spring bolt hook on the spring bolt plate until the hook lock hook is buckled with the spring bolt hook, locking can be completed, the structure is simple, no spring structure exists, the service life is long, and the maintenance cost is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the box structure technical field, more specifically, relate to a kind of lower box structure applied to self-locking box. BACKGROUND

[0002] At present, the box structure of most self-locking boxes is provided with a spring, which is subjected to stretching, compression and torsion in work, especially the spring of metal material, which is prone to breakage, affecting its normal work, and the service life of the spring is short, which needs to be replaced frequently, increasing the maintenance cost. SUMMARY

[0003] The utility model is mainly to provide a kind of lower box structure applied to self-locking box, to solve the problem of the above background technology.

[0004] According to the first aspect of the utility model, a lower box structure applied to self-locking box is provided, comprising a lock tongue plate, the top of the lock tongue plate is fixedly connected with a lock cover plate and a lock slot plate, the lock cover plate and the lock slot plate are fixedly connected, a movable hook lock piece is arranged between the lock cover plate and the lock slot plate, the bottom of the hook lock piece is provided with a hook lock hook, the top of the lock tongue plate is provided with a lock tongue hook matched with the hook lock hook, and the hook lock hook and the lock tongue hook are movably buckled.

[0005] In a specific embodiment of the utility model, the side of the lock slot plate away from the lock cover plate is provided with an assembly hole, the middle of the hook lock piece is provided with a switch protrusion, and the switch protrusion passes through the assembly hole and moves in the assembly hole.

[0006] In a specific embodiment of the utility model, the side of the lock slot plate close to the lock cover plate is provided with a plurality of protrusions, and a plurality of positioning grooves are formed in the protrusions.

[0007] In a specific embodiment of the utility model, the plurality of protrusions include a first protrusion, a second protrusion, a third protrusion and a fourth protrusion, the first protrusion is arranged above the third protrusion, the third protrusion is symmetrically arranged on both sides of the fourth protrusion, the second protrusion is arranged on one side of the third protrusion, and the length of the first protrusion is greater than the sum of the lengths of the second protrusion, the third protrusion and the fourth protrusion.

[0008] In a specific embodiment of the utility model, the bottom of the first protrusion is provided with two first limiting grooves, and the top of the third protrusion is provided with two second limiting grooves.

[0009] In a specific embodiment of the utility model, the hook lock piece is provided with a first cantilever buckle matched with the two first limiting grooves, and the hook lock piece is provided with a second cantilever buckle matched with the two second limiting grooves.

[0010] In one specific embodiment of the utility model, the lock cover plate is provided with a plurality of positioning bosses matched with the positioning grooves on one side close to the lock groove plate.

[0011] In one specific embodiment of the utility model, an assembly groove matched with the hook lock piece is formed on the lock groove plate.

[0012] In one specific embodiment of the utility model, a connecting groove connected with the box plate is formed on the lock tongue plate.

[0013] In one specific embodiment of the utility model, a connecting space connected with the box plate is formed between the lock cover plate and the lock groove plate.

[0014] The above technical solution of the utility model has at least one of the following advantages or beneficial effects:

[0015] The lower sealing box structure applied to the self-locking box body is self-locked by moving the hook lock piece, and the lock cover plate and the lock groove plate are fixedly connected, when self-locking is needed, the hook lock piece is moved to drive the hook lock hook to move, so that the hook lock hook is away from the lock tongue hook on the lock tongue plate, and the unlocking is completed; when locking is needed, the hook lock hook of the hook lock piece is moved to the direction of the lock tongue hook on the lock tongue plate until the hook lock hook is buckled with the lock tongue hook, and the locking is completed, the utility model has simple structure, no spring structure, long service life, and low maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings and embodiments;

[0017] Fig. 1 Fig. 1 is a structural schematic diagram of the lower sealing box structure applied to the self-locking box body in one embodiment of the utility model;

[0018] Fig. 2 Fig. 2 is an exploded structural schematic diagram of the lower sealing box structure applied to the self-locking box body in one embodiment of the utility model;

[0019] Fig. 3 Fig. 3 is a structural schematic diagram of the lock cover plate in one embodiment of the utility model. DETAILED DESCRIPTION

[0020] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as a limitation on the utility model.

[0021] In the description of the utility model, it needs to be understood that, if the direction description, such as the direction or positional relation indicated by up, down, front, back, left, right etc. based on the direction or positional relation shown in the drawing, is only for the convenience of describing the utility model and simplifying the description, and is not to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it can not be understood as a limitation on the utility model.

[0022] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than etc. is not included in the number, above, below, within etc. is included in the number.If it is described to the first, second, it is only used for distinguishing technical features for the purpose, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0023] In addition, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features.

[0024] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the term "connection" should be broadly understood, for example, it can be fixed connection or movable connection, or detachable connection or non-detachable connection, or integrally connected;It can be mechanical connection, or electrical connection or can communicate with each other;It can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements, indirect communication or mutual action relationship of two elements.

[0025] The following disclosure provides many different embodiments or examples to realize different schemes of the utility model.

[0026] Referring to Figs. 1 to 3 As shown in the figure, the lower sealing box structure applied to the self-locking box is provided, including the lock tongue plate 1, the top of the lock tongue plate 1 is fixedly connected with the lock cover plate 2 and the lock slot plate 3, the lock cover plate 2 and the lock slot plate 3 are fixedly connected, the movable hook lock piece 4 is arranged between the lock cover plate 2 and the lock slot plate 3, the bottom of the hook lock hook 41 is provided, the top of the lock tongue plate 1 is provided with the lock tongue hook 11 matched with the hook lock hook 41, and the hook lock hook 41 and the lock tongue hook 11 are movably buckled.

[0027] In the embodiment, the lock cover plate 2 and the lock slot plate 3 are fixedly arranged on the top of the lock tongue plate 1, and the lock cover plate 2 and the lock slot plate 3 are fixedly connected; when locking is needed, the hook locking piece 4 is moved to drive the hook locking hook 41 to move, so that the hook locking hook 41 approaches the lock tongue hook 11 until the two are buckled and connected, and the locking is completed; when unlocking is needed, the hook locking piece 4 is moved to make the hook locking hook 41 away from the lock tongue hook 11, and the unlocking is completed; the structure is simple, the operation is easy, the self-locking can also be completed without the spring structure, the service life is prolonged, and the maintenance cost is reduced.

[0028] In an embodiment of the utility model, the lock slot plate 3 is provided with an assembly hole 31 on the side away from the lock cover plate 2, the middle part of the hook locking piece 4 is provided with a switch protruding block 42, the switch protruding block 42 passes through the assembly hole 31 and moves in the assembly hole 31, the assembly hole 31 reserves a hole position for the switch protruding block 42 of the hook locking piece 4, and is also the position of the button for opening or closing the mechanism, and the switch is designed on the back and in the box body when the box is sealed, and can only be opened from the inside, so that the sealing property of the self-locking box body is guaranteed.

[0029] In an embodiment of the utility model, the lock slot plate 3 is provided with a plurality of protrusions 32 on the side close to the lock cover plate 2, a plurality of positioning grooves 33 are formed in the protrusions 32, and the positioning grooves 33 are mainly used for cooperation and fixation with the positioning bosses 21 of the lock cover plate 2; when the lock cover plate 2 and the lock slot plate 3 are assembled, the precise positioning function is achieved, and the assembly of the two is facilitated.

[0030] Further, the plurality of protrusions 32 include a first protrusion 321, a second protrusion 322, a third protrusion 323 and a fourth protrusion 324, the first protrusion 321 is arranged above the third protrusion 323, the third protrusion 323 is symmetrically arranged on both sides of the fourth protrusion 324, the second protrusion 322 is arranged on one side of the third protrusion 323, the length of the first protrusion 321 is greater than the sum of the lengths of the second protrusion 322, the third protrusion 323 and the fourth protrusion 324, and the second protrusion 322 and the third protrusion 323 are symmetrically arranged on both sides of the fourth protrusion 324.

[0031] Further, the bottom of the first protrusion 321 is provided with two first limiting grooves 3211, the top of the third protrusion 323 is provided with two second limiting grooves 3231, the two first limiting grooves 3211 and the two second limiting grooves 3231 are designed in arc shapes, and the two first limiting grooves 3211 and the two second limiting grooves 3231 mainly limit the hook locking piece 4 during work.

[0032] Further, the hook lock piece 4 is provided with a first cantilever buckle 43 matched with the two first limiting grooves 3211, the hook lock piece 4 is provided with a second cantilever buckle 44 matched with the two second limiting grooves 3231, the first cantilever buckle 43 is matched with the two first limiting grooves 3211, the second cantilever buckle 44 is matched with the two second limiting grooves 3231, the first cantilever buckle 43 and the second cantilever buckle 44 are matched with the corresponding limiting grooves to form a limiting structure, so that the switching of the opening and locking states of the lower sealing box mechanism is realized, in the opening or locking state, the first cantilever buckle 43 and the second cantilever buckle 44 can be clamped into the corresponding limiting grooves, the positioning effect is achieved, and the locking capacity of the sealing box mechanism is strengthened, and automatic locking caused by accidental impact is avoided.

[0033] In an embodiment of the utility model, the lock cover plate 2 is provided with a plurality of positioning bosses 21 matched with the positioning grooves 33 on the side close to the lock groove plate 3, and the positioning bosses 21 can play the role of accurate positioning when the lock cover plate 2 and the lock groove plate 3 are assembled, facilitating the assembly of the lock cover plate 2 and the lock groove plate 3.

[0034] In an embodiment of the utility model, the lock groove plate 3 is provided with an assembly groove 34 matched with the hook lock piece 4, and the hook lock piece 4 is installed in the assembly groove 34 and can move in the assembly groove 34.

[0035] In an embodiment of the utility model, the lock tongue plate 1 is provided with a connecting groove 12 connected with the box plate, and the connecting groove 12 mainly plays the role of assisting the positioning and assembly of the lock tongue plate 1 and the box plate, so as to ensure the close and accurate connection between the components.

[0036] In an embodiment of the utility model, the lock cover plate 2 and the lock groove plate 3 form a connecting space 5 connected with the box plate, and the connecting space 5 is used for positioning and assembling the box plate, so as to ensure the close and accurate connection between the components.

[0037] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and the equivalents thereof.

Claims

1. A lower sealing structure applied to a self-locking box, comprising a locking tongue plate (1), characterized in that, The top of the latch plate (1) is fixedly connected to the cover plate (2) and the groove plate (3). The cover plate (2) and the groove plate (3) are fixedly connected. A movable hook lock (4) is provided between the cover plate (2) and the groove plate (3). A hook lock hook (41) is provided at the bottom of the hook lock (4). A latch hook (11) is provided at the top of the latch plate (1) to cooperate with the hook lock hook (41). The hook lock hook (41) and the latch hook (11) are movably engaged.

2. The lower sealing structure applied to a self-locking box according to claim 1, characterized in that, The lock slot plate (3) has an assembly hole (31) on the side away from the lock cover plate (2), and the hook lock (4) has a switch protrusion (42) in the middle. The switch protrusion (42) passes through the assembly hole (31) and moves within the assembly hole (31).

3. The lower sealing structure applied to a self-locking box according to claim 1, characterized in that, The locking groove plate (3) has several protrusions (32) on the side near the locking cover plate (2), and several positioning grooves (33) are provided on the protrusions (32).

4. The lower sealing structure applied to a self-locking box according to claim 3, characterized in that, The plurality of protrusions (32) include a first protrusion (321), a second protrusion (322), a third protrusion (323) and a fourth protrusion (324). The first protrusion (321) is disposed above the third protrusion (323). The third protrusion (323) is symmetrically disposed on both sides of the fourth protrusion (324). The second protrusion (322) is disposed on one side of the third protrusion (323). The length of the first protrusion (321) is greater than the sum of the lengths of the second protrusion (322), the third protrusion (323) and the fourth protrusion (324).

5. The lower sealing structure applied to a self-locking box according to claim 4, characterized in that, The bottom of the first protrusion (321) is provided with two first limiting grooves (3211), and the top of the third protrusion (323) is provided with two second limiting grooves (3231).

6. The lower sealing structure applied to a self-locking box according to claim 5, characterized in that, The hook lock (4) is provided with a first cantilever buckle (43) that cooperates with the two first limiting grooves (3211), and the hook lock (4) is provided with a second cantilever buckle (44) that cooperates with the two second limiting grooves (3231).

7. The lower sealing structure applied to a self-locking box according to claim 3, characterized in that, The lock cover plate (2) has several positioning bosses (21) that cooperate with the positioning groove (33) on the side near the lock groove plate (3).

8. The lower sealing structure applied to a self-locking box according to claim 1, characterized in that, The locking plate (3) is provided with an assembly groove (34) that is compatible with the hook lock (4).

9. The lower sealing structure applied to a self-locking box according to claim 1, characterized in that, The locking tongue plate (1) is provided with a connecting groove (12) for connecting the box plate.

10. The lower sealing structure applied to a self-locking box according to claim 1, characterized in that, A connecting space (5) for connecting the box plate is formed between the lock cover plate (2) and the lock groove plate (3).