A locking structure for a top and bottom cover carton

Abstract

The utility model discloses a lock catch structure for heaven and earth cover carton, this lock catch structure installs respectively on the heaven box and ground box, the lock catch structure include lock sleeve, be equipped with second limit hole on the lock sleeve and be fixed at the second installation hole department of ground box, and second limit hole and second installation hole are all the L type shape of end open, the baffle, be equipped with first limit hole on the baffle and be fixed at the first installation hole department of heaven box, and first limit hole and first installation hole are all through -hole, lock core, the lock core include end cap and cylinder, and end cap is located one end of cylinder, is equipped with the separation ring on the cylinder and is separated and forms first cylinder and second cylinder, and first cylinder sliding installation is in first limit hole, and second cylinder sliding card is equipped in second limit hole. The device can make lock core be in the locking or unlocking state in second limit hole through the lock core along first limit hole left and right sliding, simple structure, convenient operation, and the lock catch structure is made of degradable material, and the environmental protection is good.

Description

Technical Field

[0001] This utility model relates to the field of improved design technology of packaging locking components, and in particular to a locking structure for top and bottom lid cardboard boxes. Background Technology

[0002] With the continuous advancement of technology, the demand for packaging is increasing, and plastic buckles, as a standard component of top-and-bottom cardboard boxes, are becoming increasingly widely used. As people's awareness of environmental protection grows, there is a growing trend towards green packaging and the use of recyclable materials. Traditional plastic buckles can no longer meet the needs of sustainable development. Although plastic buckle products have good cushioning and protective properties, their waste cannot be naturally degraded, and incineration produces harmful gases. The use of non-environmentally friendly materials exacerbates the deterioration of the natural environment.

[0003] In the prior art, patent CN208412639U discloses a top and bottom cover lock, which is installed on the upper and lower trays of a turnover box. Two recessed grooves are respectively provided on two opposite sides of the outer surface of the tray. A fixed slider is provided with an upward protrusion in the middle of the groove. The fixed slider has a hollow structure, and a corresponding sliding groove is provided on its surface. The sliding groove has a square structure, and the two opposite sides of the straight line perpendicular to the edge of the tray have opposing convex arc-shaped abutments. A recessed groove is provided around the edge of the inner surface of the tray. One end of the fixed slider is connected to the groove, and a sliding lock is correspondingly provided inside the fixed slider. This utility model has a simple structure and is easy to use. The lock structure reduces damage caused by directly fixing the turnover box, allows for recycling, and extends its service life.

[0004] In order to solve one of the above problems, this application provides a locking structure for top and bottom lid cardboard boxes. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art and to propose a locking structure for top and bottom lid cartons. The lock core can slide left and right along the first limiting hole and can be locked or unlocked in the second limiting hole. The structure is simple and easy to operate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a locking structure for a top and bottom box, wherein the locking structure is installed on the top box and the bottom box respectively, the locking structure includes a locking sleeve, the locking sleeve is provided with a second limiting hole and fixed at the second mounting hole of the bottom box, and both the second limiting hole and the second mounting hole are L-shaped through holes with an open end.

[0007] A baffle plate, wherein the baffle plate is provided with a first limiting hole and fixed at the first mounting hole of the top box, and both the first limiting hole and the first mounting hole are through holes;

[0008] The lock cylinder includes an end cap and a cylinder. The end cap is located at one end of the cylinder. The cylinder is provided with a separator ring and is divided to form a first cylinder and a second cylinder. The first cylinder is slidably installed in a first limiting hole, and the second cylinder is slidably locked in a second limiting hole.

[0009] Furthermore, as described above, the lock sleeve includes a second adhesive plate, on which a second limiting hole is machined.

[0010] Furthermore, as described above, the second limiting hole is a through hole formed by machining an L-shaped path inward along one end of the second adhesive plate, and the corner of the second limiting hole is provided with a beveled rounded corner.

[0011] Furthermore, as described above, the box is provided with an installation area that is compatible with the second adhesive plate, and the second installation hole is an L-shaped through hole extending inward along the installation area.

[0012] Furthermore, as described above, the baffle includes a first adhesive plate, on which a first limiting hole is machined.

[0013] Furthermore, as described above, the first limiting hole is a through hole formed by the hole wall extending outward perpendicular to the first adhesive plate.

[0014] Furthermore, as described above, a first mounting hole is machined through the top box, and the wall of the first limiting hole extends and is fitted into the first mounting hole.

[0015] Furthermore, as described above, the lock cylinder can slide left and right along the first limiting hole and can be locked or unlocked within the second limiting hole.

[0016] Furthermore, as described above, the diameter of the first cylinder is smaller than the size of the first limiting hole, the diameter of the second cylinder is smaller than the size of the second limiting hole, the outer diameter of the end cap and the separator ring are both larger than the size of the second limiting hole, and the outer diameter of the separator ring is larger than the size of the first limiting hole.

[0017] Furthermore, as mentioned above, the lock sleeve, guard plate, and lock cylinder are all made of biodegradable materials.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the lock sleeve is installed on the ground box and the baffle is fixed on the top box. The lock cylinder can slide left and right along the first limiting hole and can be locked or unlocked in the second limiting hole. The structure is simple and easy to operate. At the same time, it is made of biodegradable materials, which is environmentally friendly and meets the requirements of sustainable development. Attached Figure Description

[0019] Figure 1 is the three-dimensional Figure 1 ;

[0020] Figure 2 is Figure 1 explosion schematic diagram;

[0021] Figure 3 is the three-dimensional Figure 2 ;

[0022] Figure 4 is Figure 2 explosion schematic diagram;

[0023] Figure 5 is the schematic diagram of the upper box and the lower box supporting the present utility model;

[0024] Figure 6 is the schematic diagram of the present utility model assembled in the upper box and the lower box.

[0025] In the figure: 1, grid baffle; 10, first adhesive plate; 11, first limiting hole; 2, lock core; 20, end cap; 21, second cylinder; 22, separating ring; 23, first cylinder; 3, lock sleeve; 30, second adhesive plate; 31, second limiting hole; 4, lower box; 40, second mounting hole; 5, upper box; 50, first mounting hole. Specific embodiments

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "installed on" another element, it can be directly installed on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements.

[0028] Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0030] Reference Figure 1-6 As shown, this utility model discloses a locking structure for a top-and-bottom box. The locking structure is installed on the top box 5 and the bottom box 4. Specifically, the locking structure includes a locking sleeve 3, a baffle plate 1, and a lock cylinder 2. The locking sleeve 3 has a second limiting hole 31 and is fixed to the second mounting hole 40 of the bottom box 4. Both the second limiting hole 31 and the second mounting hole 40 are L-shaped through holes with an open end. The baffle plate 1 has a first limiting hole 11 and is fixed to the first mounting hole 50 of the top box 5. The first limiting hole 11... Both the first mounting hole 50 and the first mounting hole 50 are through holes; the lock cylinder 2 includes an end cap 20 and a cylinder. The end cap 20 is located at one end of the cylinder. The cylinder is provided with a dividing ring 22 and is divided to form a first cylinder 23 and a second cylinder 21. The first cylinder 23 is slidably installed in the first limiting hole 11, and the second cylinder 21 is slidably locked in the second limiting hole 31. That is, the lock cylinder 2 is slidably installed on the baffle plate 1 and slidably locked on the lock sleeve 3. By moving left and right to the end of the first limiting hole 11, the unlocking or locking operation between the lock cylinder 2 and the lock sleeve 3 can be realized.

[0031] Regarding the specific structure of the lock sleeve 3, the lock sleeve 3 includes a second adhesive plate 30, on which a second limiting hole 31 is machined. The second limiting hole 31 is a through hole formed by machining an L-shaped path inward along one end of the second adhesive plate 30. The corner of the second limiting hole 31 is provided with a beveled rounded corner, which serves as a limiting function. Specifically, the second adhesive plate 30 is clamped and glued to the base box 4 by folding two adjacent cardboard pieces. The second mounting hole 40 is a through hole formed by machining an L-shaped path inward along the fold seam of the two adjacent cardboard pieces. For secure fixing, the cardboard pieces at corresponding positions on the lock sleeve 3 and the base box 4 are glued together. The second limiting hole 31 is provided with a beveled rounded corner as a locking part, used to guide the second cylinder 21 and to limit and block it, ensuring that the latch structure remains taut and does not spring open when not in use.

[0032] Regarding the specific structure of the baffle 1, the baffle 1 includes a first adhesive plate 10, on which a first limiting hole 11 is machined. The first limiting hole 11 is a through hole formed by the hole wall extending outward perpendicular to the first adhesive plate 10. Specifically, a first mounting hole 50 is machined through the top box 5, and the hole wall of the first limiting hole 11 extends and is fitted into the first mounting hole 50. For secure fixing, the cardboard at corresponding positions on the baffle 1 and the top box 5 are glued together. The baffle 1 separates the corrugated cardboard of the top box 5 from that of the bottom box 4, preventing excessive friction from damaging the outer surface of the carton and thus losing its aesthetic appeal. It can also use the extended portion of the hole wall of the first limiting hole 11 to cover the corrugated pit surface, preventing the hole from being exposed and affecting the appearance.

[0033] Regarding the specific structure of the lock cylinder 2, the diameter of the first cylinder 23 is smaller than the size of the first limiting hole 11, the diameter of the second cylinder 21 is smaller than the size of the second limiting hole 31, the outer diameters of the end cap 20 and the separator ring 22 are both larger than the size of the second limiting hole 31, and the outer diameter of the separator ring 22 is larger than the size of the first limiting hole 11, ensuring that the lock cylinder 2 can slide freely and not detach after being installed in place. In actual use, the lock cylinder 2 slides left and right along the first limiting hole 11 and can be locked or unlocked in the second limiting hole 31. The cylinder allows consumers to easily open the carton by laterally sliding it to open the locking structure. The middle part of the cylinder bears the load to prevent the locking structure from breaking. The first cylinder 23 provides a fixed force to the locking structure to prevent it from loosening in the cardboard, which would cause the lock core 2 to move irregularly in the baffle 1. It also bears part of the load to prevent uneven force distribution. The second cylinder 21 is clamped between the top box 5 and the bottom box 4 to lock and fix it in place. It is used to lock the lock sleeve 3 to prevent the locking structure from falling off and causing damage after it is opened.

[0034] Furthermore, the lock sleeve 3, the baffle plate 1, and the lock cylinder 2 are all made of biodegradable materials, such as wood, bamboo fiber, and biodegradable plastics. Wood is generally used, as it not only degrades naturally but also supports the weight of the contents, thus protecting the product. In addition, wooden locks have advantages in processing, achieving strong locking capabilities through simple processing, thereby enabling efficient and environmentally friendly production and contributing to the sustainable development of the packaging industry.

[0035] This device uses a locking structure made of biodegradable materials instead of plastic locks, meeting current environmental protection requirements. The packaging is simple, easy for workers to learn, reduces human error, increases assembly speed, and lowers labor costs for businesses. The locking structure adopts a modular design, allowing for easy replacement of damaged parts and reducing packaging costs. The lock cylinder 2 uses a segmented structure, ensuring strength while facilitating transportation and assembly as much as possible.

[0036] In this utility model device, the assembly and fitting relationships of the various components, the materials used, and the processing methods are existing technologies or materials. Those skilled in the art can directly purchase or order these materials from the market according to the required product model and specifications. The above description is merely a preferred embodiment of this utility model; common knowledge regarding specific structures and characteristics is not described in detail here. It is obvious to those skilled in the art that this utility model is not limited to the details of the above embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A locking structure for a top-and-bottom cover carton, the locking structure being installed on a top box (5) and a bottom box (4), respectively, characterized in that, The locking structure includes a locking sleeve (3), which has a second limiting hole (31) and is fixed to the second mounting hole (40) of the ground box (4). The second limiting hole (31) and the second mounting hole (40) are both L-shaped through holes with an open end. The baffle plate (1) is provided with a first limiting hole (11) and fixed at the first mounting hole (50) of the top box (5). The first limiting hole (11) and the first mounting hole (50) are both through holes. The lock cylinder (2) includes an end cap (20) and a cylinder. The end cap (20) is located at one end of the cylinder. The cylinder is provided with a separator ring (22) and is divided to form a first cylinder (23) and a second cylinder (21). The first cylinder (23) is slidably installed in the first limiting hole (11), and the second cylinder (21) is slidably locked in the second limiting hole (31).

2. The locking structure for a top and bottom cover carton according to claim 1, wherein The lock sleeve (3) includes a second adhesive plate (30), on which a second limiting hole (31) is machined.

3. The locking structure for a top closure carton according to claim 2, wherein The second limiting hole (31) is a through hole formed by machining an L-shaped path inward along one end of the second adhesive plate (30), and the corner of the second limiting hole (31) is provided with a beveled rounded corner.

4. The locking structure for a top and bottom cover carton according to claim 3, wherein The ground box (4) is provided with an installation area that is compatible with the second adhesive plate (30), and the second installation hole (40) is an L-shaped through hole that extends inward along the installation area.

5. The locking structure for a top closure carton according to claim 1, wherein The baffle (1) includes a first adhesive plate (10), on which a first limiting hole (11) is machined.

6. The locking structure for a top closure carton according to claim 5, wherein The first limiting hole (11) is a through hole formed by the hole wall extending outward perpendicular to the first adhesive plate (10).

7. The locking structure for a top closure carton according to claim 6, wherein The top box (5) has a first mounting hole (50) through it, and the wall of the first limiting hole (11) extends and is fitted into the first mounting hole (50).

8. The locking structure for a top closure carton according to claim 1, wherein The lock cylinder (2) can slide left and right along the first limiting hole (11) and can be locked or unlocked in the second limiting hole (31).

9. The locking structure for a top closure carton according to claim 8, wherein The diameter of the first cylinder (23) is smaller than the size of the first limiting hole (11), the diameter of the second cylinder (21) is smaller than the size of the second limiting hole (31), the outer diameter of the end cap (20) and the separator ring (22) are both larger than the size of the second limiting hole (31), and the outer diameter of the separator ring (22) is larger than the size of the first limiting hole (11).

10. The locking structure for a top closure carton according to any one of claims 1 to 9, wherein The lock sleeve (3), the baffle plate (1) and the lock cylinder (2) are all made of biodegradable materials.

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