A reinforced paperboard carton

Abstract

The utility model discloses a kind of paper boxes of reinforced support, it is related to packaging container technical field, including box, supporting mechanism and fixed mechanism, the supporting mechanism includes: cover;Fixedly connected with the V-shaped plate of V-shaped plate in the inner wall of box and opening is inward;Fixed block is fixedly connected in the corner of box;Long board two and long board one are respectively integrally formed in the opening edge of box and cover and are inwardly folded;And sponge layer is laid in the inner wall of box, the fixed mechanism includes: the mounting block of being fixed in the outer wall of box and being provided with recess. The utility model is through above-mentioned structure, the pressure bearing capacity, impact resistance and structural stability of paper box are significantly improved, while the firm locking of box cover and the effective protection to internal article are realized.

Description

Technical Field

[0001] This invention relates to the field of packaging container technology, and in particular to a reinforced cardboard box. Background Technology

[0002] Cardboard boxes, as a primary packaging container, are widely used in the logistics, warehousing, and transportation of goods due to their low cost, light weight, and ease of recycling.

[0003] However, existing ordinary cardboard boxes have obvious shortcomings in structural design. They rely on the rigidity of the corrugated cardboard itself, but the overall structural strength is limited. Especially when stacked or subjected to heavy loads, the box, particularly at the corners and opening edges, can be compressed and deformed or collapse due to uneven stress or excessive pressure.

[0004] Meanwhile, traditional cardboard box lids are mostly sealed with tape. This sealing method is not only inconvenient when repeated opening and closing is required, but its connection reliability is also poor. Under bumps or vibrations during handling, the tape may loosen, and the lid can easily open. Accidental opening of the lid not only risks the contents scattering, but more importantly, it disrupts the box's intended closed cavity structure, causing a sharp decline in its overall pressure and impact resistance, thus accelerating the deformation and damage of the box.

[0005] Existing cardboard boxes generally lack integrated structural reinforcement systems, making it impossible to simultaneously solve the problems of insufficient compression support and unstable overall structure caused by insecure lid sealing.

[0006] Therefore, this utility model proposes a reinforced cardboard box to address the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems of insufficient structural strength, easy collapse and deformation, and unstable overall structure caused by the loose and loose sealing of the box lid in the existing reinforced cardboard box, this utility model aims to provide a reinforced cardboard box with improved structure that can effectively solve the above problems.

[0008] This utility model provides a reinforced cardboard box, including: a box body; the cardboard box also includes a support mechanism and a fixing mechanism; the support mechanism is installed on or cooperates with the box body, and the support mechanism includes: a cover, a first long plate, a second long plate, a sponge layer, a V-shaped plate, and a fixing block; the fixing mechanism is used to releasably lock the cover to the box body; The fixing mechanism includes: a mounting block, fixedly connected to the outer wall of the housing, the mounting block having a groove for engaging; a housing, fixedly connected to the outer wall of the cover, the housing having a sliding chamber for accommodating the pull rod; a pull rod, vertically slidably connected to the sliding chamber of the housing; a support arm, the middle of which is rotatably connected to the side wall of the housing; a connecting rod, one end of which is rotatably connected to the pull rod, and the other end of which is rotatably connected to the side of the support arm near its rotatable connection point; and a protrusion, fixedly connected to the end of the support arm away from the connecting rod, for selectively engaging into or disengaging from the groove of the mounting block when the support arm rotates. And a damping rod, which is elastically mounted on the bottom of the housing, with the top end of the damping rod abutting against the bottom end of the pull rod. The damping rod is used to be compressed when the pull rod slides downward under pressure, and to elastically rebound to push the pull rod back upward when the pull rod is released.

[0009] Preferably, there are multiple V-shaped plates, which are fixedly connected side by side to the inner wall of the box, and the openings of the V-shaped plates all face the internal space of the box. This arrangement makes the V-shaped plates act as structural reinforcing ribs, effectively absorbing and dispersing the impact force from the outside.

[0010] Preferably, a sponge layer is laid and fixed to the inner wall of the box. The sponge layer is used to isolate the items to be contained from the inner wall of the box. The sponge layer provides soft cushioning and avoids scratches or wear caused by the internal items coming into hard contact with the box during transportation.

[0011] Preferably, there are multiple fixing blocks, which are fixedly connected to the four corners of the top of the box. These fixing blocks are used to support the box in the vertical direction. They are the main load-bearing structures to resist stacking pressure and effectively prevent the corners of the carton from collapsing.

[0012] Preferably, the long plate is integrally formed at the top opening edge of the box body, and the long plate is folded inward into the box body to form a thickened layer. This folded thickened layer significantly enhances the rigidity of the opening edge of the box body.

[0013] Preferably, the first long plate is integrally formed on the bottom edge of the cover, the first long plate is folded inward toward the inside of the box, and is set to correspond with the second long plate when the cover is closed. The two work together to form a double-thickened pressure-bearing structure.

[0014] Preferably, the downward sliding stroke of the pull rod is used to compress the damping rod, and the rebound force of the damping rod is transmitted to the support arm via the pull rod and the connecting rod. This force transmission path drives the support arm to automatically rotate and reset, realizing the locking automatic rebound function.

[0015] Preferably, the support arm rotates around its pivot point with respect to the housing, causing the protrusion to move in an arc along the outer wall of the housing. This specific motion trajectory ensures that the protrusion can smoothly slide into or out of the groove of the mounting block, making locking and unlocking operations easy and reliable.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problem that existing cardboard boxes will collapse and deform under heavy stacking pressure by setting a fixing block at the corner of the box and setting an inward folding long plate one and a long plate two at the lid and the opening of the box, respectively, thus achieving the effect of significantly improving the overall load-bearing capacity and structural stability of the cardboard box.

[0017] 2. This utility model solves the problem of weak impact resistance and easy breakage of existing cardboard box walls under external impact by fixing multiple V-shaped plates to the inner wall of the box, and achieves the effect of effectively dispersing and resisting external impact force and enhancing the structural strength of the box wall.

[0018] 3. This utility model solves the problem of traditional carton lids being not securely fixed and easily loosening or opening during handling by setting up a mechanical fixing mechanism consisting of a pull rod, connecting rod, support arm, protrusion, damping rod, outer shell and mounting block. It achieves the effect of making the lid and the box body form a stable connection, convenient operation and reliable locking.

[0019] 4. This utility model solves the problem of surface scratches or wear caused by items being in direct contact with the box during transportation due to shaking by laying a sponge layer on the inner wall of the box, thus achieving the effect of providing effective cushioning, isolation and anti-friction protection for the internal items. Attached Figure Description

[0020] Figure 1 This is a perspective view of a reinforced cardboard box according to the present invention. Figure 2 This is a front view of a reinforced cardboard box according to the present invention. Figure 3 This is a structural exploded view of a reinforced cardboard box according to the present invention; Figure 4 This is a partial structural exploded view of a reinforced cardboard box proposed in this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Box body; 2. Support mechanism; 201. Cover; 202. Long plate one; 203. Long plate two; 204. Sponge layer; 205. V-shaped plate; 206. Fixing block; 3. Fixing mechanism; 301. Tie rod; 302. Outer shell; 303. Connecting rod; 304. Damping rod; 305. Support arm; 306. Protrusion; 307. Mounting block. Detailed Implementation

[0022] 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.

[0023] Example: Reference Figures 1 to 4 A reinforced cardboard box includes a box body 1, a support mechanism 2, and a fixing mechanism 3. The support mechanism 2 is installed on or cooperates with the box body 1. The support mechanism 2 includes a cover 201, a first long plate 202, a second long plate 203, a sponge layer 204, a V-shaped plate 205, and a fixing block 206. The fixing mechanism 3 is used to releasably lock the cover 201 to the box body 1. The fixing mechanism 3 includes a mounting block 307, which is fixedly connected to the outer wall of the box body 1. The mounting block 307 has a groove for snapping. The fixing mechanism 3 also includes a housing 302, which is fixedly connected to the outer wall of the cover 201. The housing 302 has a sliding chamber inside for accommodating a pull rod 301, which is vertically slidably connected to the outer wall. Inside the sliding chamber of the housing 302, there is a support arm 305, the middle of which is rotatably connected to the side wall of the housing 302. A connecting rod 303 is rotatably connected at one end to the pull rod 301 and at the other end to the side of the support arm 305 near its rotation connection point. A protrusion 306 is fixedly connected to the end of the support arm 305 away from the connecting rod 303, and is used to selectively engage with or disengage from the groove of the mounting block 307 when the support arm 305 rotates. The fixing mechanism 3 also includes a damping rod 304, which is elastically mounted on the bottom of the housing 302. The top end of the damping rod 304 abuts against the bottom end of the pull rod 301, and is used to be compressed when the pull rod 301 is pressed and slides downward, and to elastically rebound when the pull rod 301 is released to push the pull rod 301 to return to its original position.

[0024] Furthermore, the specific structure of the support mechanism 2 is described in detail. The support mechanism 2 is precisely matched with the box body 1 and the cover 201 to provide enhanced support and protection for the carton. Please refer to [link / reference needed]. Figure 3 and Figure 4The support mechanism 2 includes multiple V-shaped plates 205, which are fixedly connected side-by-side to the inner wall of the box 1, with the openings of the V-shaped plates 205 all facing the interior space of the box 1. When the box 1 is subjected to external impact, the V-shaped plates 205 can effectively withstand the impact. The support mechanism 2 also includes a sponge layer 204, which is laid and fixed to the inner wall of the box 1. The sponge layer 204 is located inside the V-shaped plates 205 and is used to isolate the items to be contained from the inner wall of the box 1 and the V-shaped plates 205, preventing the items from being scratched or worn due to shaking and friction with the box 1 during transportation. The support mechanism 2 also includes a fixing block 206. Multiple blocks are fixedly connected to the four corners of the top of the box body 1. The fixing blocks 206 are used to support the box body 1 in the vertical direction to prevent the box opening from collapsing. The support mechanism 2 also includes a second long plate 203, which is integrally formed on the edge of the top opening of the box body 1. The second long plate 203 is folded inward to form a thickened layer. The cover 201 in the support mechanism 2 is used to close the top opening of the box body 1. The bottom edge of the cover 201 is integrally formed with a first long plate 202, which is also folded inward to the box body 1. When the cover 201 is closed, the first long plate 202 and the second long plate 203 are positioned correspondingly. The thickened layer formed by the two together improves the load-bearing capacity of the carton.

[0025] Based on the above embodiments, the internal structure and linkage relationship of the fixing mechanism 3 are described in more detail. The fixing mechanism 3 ensures a stable and convenient locking between the cover 201 and the box 1. In one specific implementation, the downward sliding stroke of the pull rod 301 is used to press the damping rod 304. The rebound force of the damping rod 304 is transmitted to the support arm 305 through the pull rod 301 and the connecting rod 303 to drive the support arm 305 to rotate and reset. The force transmission path clearly defines the automatic reset process of the locking action. In another specific implementation, the support arm 305 rotates around its rotational connection point with the outer shell 302 and drives the protrusion 306 to move in an arc along the outer wall of the outer shell 302, thereby enabling the protrusion 306 to accurately engage or disengage from the groove of the mounting block 307. The inner cavity of the groove is the same as the movement trajectory of the protrusion 306, which is conducive to the engagement of the protrusion 306 with the groove and ensures the smoothness and reliability of the locking and unlocking actions.

[0026] Working principle: During transportation and stacking, the support mechanism 2 provides multiple protections. When the box 1 is subjected to external impact, multiple V-shaped plates 205 fixedly connected to its inner wall first disperse and resist the impact force. At the same time, the sponge layer 204 laid and fixed to the inner wall buffers the internal items and isolates the items from the inner wall of the box 1 to prevent friction and scratches. When stacking, the fixing blocks 206 fixedly connected to the four corners of the top of the box 1, together with the long plate 203 integrally formed on the edge of the top opening of the box 1 and folded inward, and the long plate 202 integrally formed on the bottom edge of the cover 201 and folded inward, together form a solid vertical support structure, effectively resisting heavy pressure and preventing the box 1 from collapsing and deforming. When fixing the cover 201, first cover the cover 201 onto the housing 1, so that the outer shell 302 is close to the mounting block 307. Then, release the pull rod 301. The damping rod 304, which is elastically mounted on the bottom of the outer shell 302 and abuts against the bottom end of the pull rod 301, elastically rebounds. The rebound force pushes the pull rod 301 upward to reset. The pull rod 301 pushes the support arm 305 through the connecting rod 303 rotatably connected to it. The support arm 305 rotates around its rotatable connection point with the outer shell 302, and drives the protrusion 306 fixedly connected to the end away from the connecting rod 303 to make an arc motion, ultimately causing... The protrusion 306 engages with the groove of the mounting block 307, which is fixedly connected to the outer wall of the housing 1. The inner cavity of the groove is the same as the movement trajectory of the protrusion 306, which facilitates the engagement of the protrusion 306 with the groove, thereby firmly locking the cover 201 to the housing 1. When it is necessary to open, press the pull rod 301 inward. The pull rod 301 can slide vertically to the sliding cavity of the outer shell 302 and slide downward. At the same time, squeeze the damping rod 304. The pull rod 301 pulls the support arm 305 to rotate in the opposite direction through the connecting rod 303, so that the protrusion 306 disengages from the groove of the mounting block 307, thereby unlocking.

Claims

1. A reinforced cardboard box, comprising: Box (1); Its features are, The carton also includes a support mechanism (2) and a fixing mechanism (3); The support mechanism (2) is installed on the box (1) and cooperates with the box (1). The support mechanism (2) includes: a cover (201), a first long plate (202), a second long plate (203), a sponge layer (204), a V-shaped plate (205), and a fixing block (206). The fixing mechanism (3) is used to releaseably lock the cover (201) to the box (1). The fixing mechanism (3) includes: a pull rod (301); Mounting block (307) is fixedly connected to the outer wall of the housing (1). The mounting block (307) is provided with a groove for snapping. Housing (302) is fixedly connected to the outer wall of the cover (201). The housing (302) has a sliding chamber for accommodating the pull rod (301). The pull rod (301) is vertically slidably connected to the sliding chamber of the housing (302). Support arm (305) is rotatably connected to the side wall of the housing (302) in its middle part. Connecting rod (303) is rotatably connected to the pull rod (301) at one end and rotatably connected to the side of the support arm (305) near its rotation connection point at the other end. Protrusion (306) is fixedly connected to the end of the support arm (305) away from the connecting rod (303) and is used to selectively snap into or detach from the groove of the mounting block (307) when the support arm (305) rotates. And a damping rod (304) is elastically mounted on the bottom of the housing (302). The top end of the damping rod (304) abuts against the bottom end of the pull rod (301) and is used to be compressed when the pull rod (301) is pressed and slides downward, and to elastically rebound when the pull rod (301) is released to push the pull rod (301) to return to its original position upward.

2. The reinforced cardboard box according to claim 1, characterized in that, The V-shaped plates (205) are multiple and are fixedly connected side by side to the inner wall of the box (1), and the openings of the V-shaped plates (205) all face the internal space of the box (1).

3. A reinforced cardboard box according to claim 1, characterized in that, The sponge layer (204) is laid and fixed to the inner wall of the box (1), and the sponge layer (204) is used to isolate the items to be contained from the inner wall of the box (1).

4. A reinforced cardboard box according to claim 1, characterized in that, The fixing blocks (206) are multiple and are fixedly connected to the four corners of the top of the box (1) respectively, for supporting the box (1) in the vertical direction.

5. A reinforced cardboard box according to claim 1, characterized in that, The second long plate (203) is integrally formed on the top opening edge of the box (1), and the second long plate (203) is folded into the inside of the box (1) to form a thickened layer.

6. A reinforced cardboard box according to claim 1, characterized in that, The first long plate (202) is integrally formed on the bottom edge of the cover (201). The first long plate (202) is folded inward toward the inside of the box (1) and is correspondingly set with the second long plate (203) when the cover (201) is closed.

7. A reinforced cardboard box according to claim 1, characterized in that, The downward sliding stroke of the pull rod (301) is used to compress the damping rod (304), and the rebound force of the damping rod (304) is transmitted to the support arm (305) via the pull rod (301) and the connecting rod (303) to drive the support arm (305) to rotate back to its original position.

8. A reinforced cardboard box according to claim 1, characterized in that, The support arm (305) rotates around its pivot point with respect to the outer shell (302), and drives the protrusion (306) to move in an arc along the outer wall of the outer shell (302) so that the protrusion (306) can be engaged or disengaged from the groove of the mounting block (307).

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