Upper box sealing structure applied to self-locking box body
By designing a top sealing box structure that eliminates the need for metal springs, and utilizing the combination of a hand latch and a wedge groove to achieve a self-locking function, the problem of decreased reliability of the self-locking box is solved, service life is extended, and maintenance costs are reduced.
Patent Information
- Application Number
- CN202520783914.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-23
AI Technical Summary
The reliability of the metal spring latches of existing self-locking enclosures drops sharply with increasing use, making it difficult to meet the requirements of multiple turnovers and increasing maintenance costs.
It adopts a top sealing box structure that does not require metal springs. The hook lock moves up and down in the assembly hole by hand, which drives the hook lock part to engage or disengage with the tongue plate to achieve a self-locking function. Combined with the wedge groove and cantilever buckle design, it ensures the convenience of locking and unlocking.
It extends the service life of the self-locking housing, reduces maintenance costs, improves the reliability and safety of locking, and avoids the problem of fatigue failure of metal springs.
Smart Images
Figure CN223908013U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the box structure technical field, more specifically, relate to a kind of upper sealing box structure applied to self-locking box. BACKGROUND
[0002] At present, most of the self-locking box in market adopts spring driving type lock catch, and locking is realized by the cooperation of metal spring and plastic shell, and the metal ratio reaches 35%, and the spring fatigue is only 100,000 times (GB / T1690-2010 test shows that the locking force decreases by more than 40% after cycling), but the metal fatigue characteristics of spring structure makes the locking reliability sharply decrease with the number of uses (the failure probability is more than 18% after 100,000 times), which is difficult to meet the multiple turnover requirements of self-locking box, and increases the maintenance cost. UTILITY MODEL CONTENTS
[0003] The main purpose of the utility model is to provide an upper sealing box structure applied to self-locking box to solve the problems in the above background technology.
[0004] According to the first aspect of the utility model, an upper sealing box structure applied to self-locking box is provided, which comprises a lock cover plate and a lock slot plate, the lock cover plate and the lock slot plate are fixedly connected, a lock tongue plate is fixedly installed at the top of the lock cover plate, tongue hook parts are symmetrically arranged at the bottom of the lock tongue plate, an assembly hole is formed in the middle of the lock cover plate, a hand buckle that can move up and down is installed on the assembly hole, wedge grooves are symmetrically arranged on both sides of the hand buckle, a hook lock piece is movably installed on the wedge groove, and the other end of the hook lock piece is buckled with the tongue hook part.
[0005] In a specific embodiment of the utility model, a plurality of positioning bosses are arranged on one side of the lock cover plate close to the lock slot plate, and a positioning groove matched with the positioning bosses is arranged on one side of the lock slot plate close to the lock cover plate.
[0006] In a specific embodiment of the utility model, a first opening box groove is arranged at the middle position of the top of the lock cover plate, a second opening box groove is arranged at the middle position of the bottom of the lock tongue plate, and the first opening box groove and the second opening box groove correspond to each other to form an opening box groove in combination.
[0007] In a specific embodiment of the utility model, an assembly groove for installing the hand buckle is arranged in the middle of the lock slot plate, a first through hole is further arranged on the assembly groove, and a limiting groove matched with the hook lock piece is arranged on the lock slot plate.
[0008] In one specific embodiment of the utility model, the middle part of the hand buckle is provided with a mounting groove, a second through hole is arranged in the mounting groove, a sub-lock tongue and a sub-lock ring are arranged in the mounting groove, one end of the sub-lock tongue passes through the second through hole and the first through hole and is clamped with the end face of the lock groove plate, and the sub-lock ring is rotatably connected with the sub-lock tongue.
[0009] In one specific embodiment of the utility model, a pop-up protrusion is symmetrically arranged on the mounting groove, and the sub-lock ring is in abutment with the pop-up protrusion.
[0010] In one specific embodiment of the utility model, a barb part is symmetrically arranged at one end of the sub-lock tongue, the barb part is clamped with the end face of the lock groove plate, the other end of the sub-lock tongue is provided with a mounting hole rotatably connected with the sub-lock ring, and the middle part of the sub-lock tongue is provided with an assembly block, the end face of the assembly block is in contact with the inner wall of the second through hole.
[0011] In one specific embodiment of the utility model, cantilever buckles are arranged at the two sides of the bottom of the hand buckle, first and second limiting grooves are arranged at the two sides of the bottom of the lock groove plate, the first limiting groove is arranged above the second limiting groove, and the cantilever buckle can be arranged in the first limiting groove or the second limiting groove.
[0012] In one specific embodiment of the utility model, the one end of the hook locking piece is provided with a lock hook part, the other end of the hook locking piece is provided with a wedge-shaped part, the wedge-shaped groove is an open structure with an upward inclination, the wedge-shaped part is movably arranged in the wedge-shaped groove, and the lock hook part is buckled with the tongue hook part.
[0013] In one specific embodiment of the utility model, the bottom of the fixed connection between the lock cover plate and the lock groove plate is provided with a first connecting groove, the lock tongue plate is provided with a second connecting groove, and the first connecting groove and the second connecting groove are used for connecting the box plate.
[0014] The above technical scheme of the utility model has at least one of the following advantages or beneficial effects:
[0015] In the utility model, the hand buckle is movably arranged in the assembly hole, so that the hook locking piece arranged in the wedge-shaped groove is movable, and the other end of the hook locking piece and the tongue hook part on the lock tongue plate can be buckled with each other or separated from each other, when the hand buckle slides downward, the hook locking piece is moved to be away from the tongue hook part, so that the unlocking is completed, when the hand buckle slides upward, the hook locking piece is close to the tongue hook part, so that the self-locking is completed, the structure does not need to use a metal spring, the dependence on the metal spring is reduced, the service life is prolonged, and the maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] The utility model will be further described in combination with the drawings and embodiments.
[0017] Figure 1 is a structure diagram of the upper sealing box structure applied to the self-locking box body in an embodiment of the utility model;
[0018] Figure 2 is an exploded structure diagram of the upper sealing box structure applied to the self-locking box body in an embodiment of the utility model;
[0019] Figure 3 is a structure diagram of the lock cover plate in an embodiment of the utility model;
[0020] Figure 4 is a structure diagram of the hand buckle in an embodiment of the utility model;
[0021] Figure 5 is a structure diagram of the sub-locking tongue in an embodiment of the utility model;
[0022] Figure 6 is a structure diagram of the upper sealing box structure applied to the self-locking box body without the lock cover plate in an embodiment of the utility model. DETAILED DESCRIPTION
[0023] The embodiments of the utility model are described in detail below, and 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.
[0024] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0025] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. is understood as not including the number, and above, below, etc. is understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.
[0026] 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. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.
[0028] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.
[0029] Reference Figures 1 to 6 As shown, a top sealing structure for a self-locking box is provided, including a lock cover plate 1 and a lock groove plate 2. The lock cover plate 1 and the lock groove plate 2 are fixedly connected. A lock tongue plate 3 is fixedly installed on the top of the lock cover plate 1. A tongue hook portion 31 is symmetrically arranged on the bottom of the lock tongue plate 3. An assembly hole 11 is opened in the middle of the lock cover plate 1. A movable hand buckle 4 is installed on the assembly hole 11. Wedge grooves 41 are symmetrically arranged on both sides of the hand buckle 4. A hook lock member 5 is movably installed on the wedge groove 41. The other end of the hook lock member 5 is engaged with the tongue hook portion 31.
[0030] In this embodiment, when the hand buckle 4 moves downward, it drives the two hook locking parts 5 to move to both sides through the wedge groove 41, thus unlocking the device. When the hand buckle 4 moves upward, it drives the two hook locking parts 5 to move towards the center through the wedge groove 41. The hook locking parts 5 and the tongue hook part 31 engage with each other, thus locking the tongue plate 3. The mounting hole 11 is a special design for installing the hand buckle 4, ensuring that the hand buckle 4 can fit securely after installation and is not easy to loosen or fall off during use, thus ensuring safety and convenience. This structure can achieve self-locking without the need for a metal spring, reducing dependence on metal springs, extending service life, and reducing maintenance costs.
[0031] Preferably, the bottom of the latch plate 3 is fixedly connected to the top of the lock cover plate 1, and the connection between the lock cover plate 1 and the latch plate 3 has good sealing performance to ensure tight closure.
[0032] In one embodiment of the utility model, the one side of lock cover plate 1 close to lock groove plate 2 is equipped with several positioning bosses 12, the one side of lock groove plate 2 close to lock cover plate 1 is equipped with the positioning groove 21 matched with positioning boss 12, and positioning boss 12 and positioning groove 21 are matched, when lock cover plate 1 and lock groove plate 2 are assembled, can play the role of accurate positioning, and the assembly of both is convenient.
[0033] In one embodiment of the utility model, the top middle position of lock cover plate 1 is provided with first open box groove 13, and the bottom middle position of lock tongue plate 3 is provided with second open box groove 32, and first open box groove 13 corresponds with second open box groove 32 to form open box groove, and first open box groove 13 and second open box groove 32 form open box groove, and suitable position is reserved for finger opening box, when needing to open the self-locking box, the finger can be through the force to first open box groove 13, and easy realization opening operation is realized.
[0034] In one embodiment of the utility model, the middle part of lock groove plate 2 is equipped with the assembly groove 25 of installing hand buckle 4, and first through-hole 251 is further equipped on assembly groove 25, and the limiting groove 22 matched with hook locking piece 5 is set up on lock groove plate 2, and assembly groove 25 is used for installing hand buckle 4, and the size and shape are accurately matched with the assembly surface of hand buckle 4, and limiting groove 22 is the groove matched with the assembly surface of hook locking piece 5, and accurate position and structural support are provided for the installation of hook locking piece 5.
[0035] Further, the middle part of hand buckle 4 is equipped with mounting groove 42, second through-hole 421 is equipped in mounting groove 42, sub-lock tongue 6 and sub-lock ring 7 are installed in mounting groove 42, one end of sub-lock tongue 6 passes through second through-hole 421 and first through-hole 251 and is clamped with the end face of lock groove plate 2, sub-lock ring 7 is rotatably connected with sub-lock tongue 6, and sub-lock tongue 6 is assembled with lock groove plate 2 to lock, and the safety is improved.
[0036] Symmetrical pop-up bosses 422 are arranged on mounting groove 42, sub-lock ring 7 abuts with pop-up bosses 422, and pop-up bosses 422 play the role as lever fulcrum, when sub-lock tongue 6 is inserted into second through-hole 421 and first through-hole 251 to realize locking function, and after the assembly of sub-lock ring 7 is completed, considering human factor design, sub-lock ring 7 forms lever by using pop-up bosses 422 as fulcrum, when pressing sub-lock tongue 6, sub-lock ring 7 will automatically be raised, and the operation of subsequently pulling apart sub-lock structure is facilitated.
[0037] Further, one end of the sub-lock tongue 6 is provided with a barb part 61 symmetrically, the barb part 61 is clamped with the end face of the lock groove plate 2, the other end of the sub-lock tongue 6 is provided with a mounting hole 62 rotatably connected with the sub-lock ring 7, the middle part of the sub-lock tongue 6 is provided with an assembly block 63, the end face of the assembly block 63 is in contact with the inner wall of the second through hole 421, the barb part 61 is V-shaped barb, the corner part is designed to be relatively weak, in order to ensure that the anti-theft buckle can be easily destroyed in normal use, and the destruction is thorough enough, so that the possibility of secondary use is eliminated, thereby ensuring the safety of the goods; the sub-lock ring 7 is provided with a rotating shaft, the rotating shaft is matched with the mounting hole 62, and the anti-theft mechanism is jointly formed, so that more reliable safety protection is provided for the goods, the assembly block 63 can accurately position the insertion depth of the sub-lock tongue 6, so that the sub-lock tongue is in the best position when it works, and the anti-theft effect is further improved.
[0038] In one embodiment of the utility model, the bottom two sides of hand buckle 4 are provided with cantilever buckles 43, the bottom two sides of lock groove plate 2 are provided with first limiting groove 23 and second limiting groove 24, first limiting groove 23 is arranged above second limiting groove 24, cantilever buckle 43 can be arranged in first limiting groove 23 or second limiting groove 24, cantilever buckle 43 and first limiting groove 23 and second limiting groove 24 are assembled to form a limiting structure, so as to realize the switching of the unlocking and locking two working states, first limiting groove 23 and second limiting groove 24 are designed as circular arcs, and first limiting groove 23 mainly functions to limit the working of hand buckle 4, and is matched with the cantilever buckles 43 on the two sides of hand buckle 4, so that the cantilever buckles 43 on the two sides of hand buckle 4 can be clamped into first limiting groove 23 when in the locking state, play the positioning role, and the locking box capacity of the sealing box structure is strengthened, and the automatic locking caused by gravity is avoided.
[0039] In one embodiment of the utility model, one end of hook locking piece 5 is provided with a hook part 51, the other end of hook locking piece 5 is provided with a wedge part 52, wedge groove 41 is an open structure inclined upward, wedge part 52 is movably arranged in wedge groove 41, hook part 51 is buckled with tongue hook part 31, wedge part 52 and wedge groove 41 are matched with each other, by means of double-inclined surface structure, the vertical movement of hand buckle 4 drives hook locking piece 5 to move outward or inward horizontally, and this design reduces the use of springs and other different materials, and fully meets the structural functional requirements of unlocking and locking.
[0040] In one embodiment of the utility model, the lock cover plate 1 and the lock groove plate 2 are fixedly connected and the bottom is provided with a first connecting groove 8, the lock tongue plate 3 is provided with a second connecting groove 9, and the first connecting groove 8 and the second connecting groove 9 are both used for connecting the box plate.
[0041] 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 their equivalents.
Claims
1. An upper sealing structure applied to a self-locking box body, comprising a lock cover plate (1) and a lock groove plate (2), characterized in that, The lock cover plate (1) and the lock slot plate (2) are fixedly connected, the top of the lock cover plate (1) is fixedly installed with a lock tongue plate (3), the bottom of the lock tongue plate (3) is symmetrically provided with a tongue hook part (31), the middle of the lock cover plate (1) is provided with an assembly hole (11), the assembly hole (11) is installed with a hand buckle (4) which can move up and down, the two sides of the hand buckle (4) are symmetrically provided with a wedge-shaped groove (41), the wedge-shaped groove (41) is movably installed with a hook lock piece (5), the other end of the hook lock piece (5) is buckled with the tongue hook part (31).
2. The upper closing box structure applied to the self-locking box according to claim 1, characterized in that, The side of the lock cover plate (1) close to the lock slot plate (2) is provided with a plurality of positioning bosses (12), and the side of the lock slot plate (2) close to the lock cover plate (1) is provided with positioning grooves (21) matched with the positioning bosses (12).
3. The upper closing box structure applied to the self-locking box according to claim 1, characterized in that, The middle of the top of the lock cover plate (1) is provided with a first opening box groove (13), and the middle of the bottom of the lock tongue plate (3) is provided with a second opening box groove (32), the first opening box groove (13) and the second opening box groove (32) correspond to each other to form an opening box groove in combination.
4. The top closing structure for a self-locking case according to claim 1, wherein The middle of the lock slot plate (2) is provided with an assembly groove (25) for installing the hand buckle (4), and the assembly groove (25) is further provided with a first through hole (251), and the lock slot plate (2) is provided with a limiting groove (22) matched with the hook lock piece (5).
5. The top closing structure for a self-locking case according to claim 4, wherein The middle of the hand buckle (4) is provided with an installation groove (42), the installation groove (42) is provided with a second through hole (421), and the installation groove (42) is installed with a sub-lock tongue (6) and a sub-lock ring (7), one end of the sub-lock tongue (6) passes through the second through hole (421) and the first through hole (251) and is clamped with the end face of the lock slot plate (2), and the sub-lock ring (7) is rotatably connected with the sub-lock tongue (6).
6. The top closing structure for a self-locking case according to claim 5, wherein The installation groove (42) is symmetrically provided with a pop-up bump (422), and the sub-lock ring (7) abuts against the pop-up bump (422).
7. The top closing structure for a self-locking case according to claim 5, wherein One end of the sub-lock tongue (6) is symmetrically provided with a barb part (61), the barb part (61) is clamped with the end face of the lock slot plate (2), the other end of the sub-lock tongue (6) is provided with an installation hole (62) rotatably connected with the sub-lock ring (7), and the middle of the sub-lock tongue (6) is provided with an assembly block (63), and the end face of the assembly block (63) is in contact with the inner wall of the second through hole (421).
8. The upper closing box structure applied to the self-locking box according to claim 1, wherein, The bottom of the hand buckle (4) is provided with a cantilever buckle (43) on both sides, the bottom of the lock slot plate (2) is provided with a first limiting groove (23) and a second limiting groove (24), the first limiting groove (23) is arranged above the second limiting groove (24), and the cantilever buckle (43) can be arranged in the first limiting groove (23) or the second limiting groove (24).
9. The upper closing structure for a self-locking case according to claim 1, wherein One end of the hook lock piece (5) is provided with a lock hook part (51), the other end of the hook lock piece (5) is provided with a wedge-shaped part (52), the wedge-shaped groove (41) is an open structure inclined upward, the wedge-shaped part (52) is movably arranged in the wedge-shaped groove (41), and the lock hook part (51) is buckled with the tongue hook part (31).
10. The upper closing structure for a self-locking case according to claim 1, wherein The bottom of the fixed connection between the lock cover plate (1) and the lock groove plate (2) is provided with a first connecting groove (8), the lock tongue plate (3) is provided with a second connecting groove (9), and the first connecting groove (8) and the second connecting groove (9) are used for connecting the box plate.