A packing box with a buffer layer

Abstract

This utility model belongs to the field of packaging box technology, specifically relating to a packaging box with a cushioning layer, including a box body and a cushioning assembly disposed within the box body. The cushioning assembly includes corner braces, bridging plates, and a mesh frame. Two corner braces are symmetrically arranged at opposite corners of the bottom surface of the box body. Two bridging plates are also arranged within the box body. Lower locking grooves are formed on both sides of the bridging plates, and these grooves engage with locking slots. This utility model, through its cushioning assembly, allows the corner braces to overlap and support the bottom surface of the box body. The mesh frame is then elastically suspended and supported by a movable locking mechanism between the mesh frame and the upper folding plate. Simultaneously, the overlap between the corner braces and the corners of the box body enhances the support strength of the bottom surface of the box body to the cushioning assembly, reduces the downward pressure on the connection points of the bottom surface, and improves the packaging protection effect for parts.

Description

Technical Field

[0001] This utility model belongs to the field of packaging box technology, and specifically relates to a packaging box with a cushioning layer. Background Technology

[0002] Existing packaging boxes, when used for packaging and transporting mechanical parts, exert significant downward pressure on the inner bottom surface of the box due to the substantial weight of the parts. When this downward pressure exceeds the box's load-bearing capacity, the inner bottom surface may break due to gravity, causing the mechanical parts to scatter and sustain damage, severely compromising the box's protective effect. Therefore, this invention proposes a packaging box with a cushioning layer to solve the aforementioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a packaging box with a cushioning layer, which can solve the above-mentioned technical problems.

[0004] The specific technical solution adopted by this utility model is as follows: This utility model provides a packaging box with a cushioning layer, including a box body and a cushioning assembly disposed inside the box body. The cushioning assembly includes corner braces, bridging plates and a wire mesh frame. Two corner braces are provided and symmetrically disposed at opposite corners of the bottom surface of the box body. Two bridging plates are provided and disposed inside the box body. Lower slots are provided on both sides of the bridging plates and the lower slots are embedded and engaged with the engaging slots. The wire mesh frame is installed inside the box and is located between two corner braces and two bridging plates. The wire mesh frame has a mesh surface inside and a movable snap-fit ​​mechanism connected to the corner braces is provided on the opposite side of the outer periphery of the wire mesh frame.

[0005] Preferably, the movable locking mechanism includes locking holes and rubber strips. The rubber strips are sleeved with the locking holes. The locking holes are configured in two sets, with each set of locking holes having an open surface on an inner folding plate. There are two inner folding plates, which are symmetrically fixed on the surfaces of two corner braces. The rubber strips are configured in two sets and are symmetrically fixed on opposite sides of the outer periphery of the frame.

[0006] Preferably, the housing is provided with two sets of locking rings, and the two sets of locking rings are symmetrically arranged on opposite sides of the two inner folding plates, and the two sets of locking rings are respectively fixed to the free ends of the two sets of rubber strips.

[0007] Preferably, parallel snap-fit ​​plates are bent on both sides of the opposite surfaces of the two corner braces, and the snap-fit ​​grooves are formed on the snap-fit ​​plates.

[0008] Preferably, the box body is provided with two symmetrical upper folding plates, which are located below the mesh surface and fixed to the opposite sides of the two corner bracing plates.

[0009] Preferably, the edges of the retaining hole are ground to an obtuse angle.

[0010] Preferably, the lower sides of the opposite sides of the two gusset plates are bent at an obtuse angle.

[0011] The beneficial effects are: This invention utilizes a buffer assembly that allows the corner braces on the buffer assembly to overlap and support the bottom surface of the box, thereby providing elastic suspension support to the wire mesh frame through a movable locking mechanism between the wire mesh frame and the upper folding plate. This provides elastic cushioning when parts are placed on the wire mesh. Simultaneously, the overlap between the corner braces and the corners inside the box enhances the support strength of the bottom surface of the box to the buffer assembly, reduces the downward pressure on the connection points to the bottom surface of the box, and improves the packaging protection effect for the parts. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the buffer component structure of this utility model; Figure 3 This is a schematic diagram of the explosion distribution structure of the buffer component of this utility model; Figure 4 This is a schematic diagram of the corner brace structure of this utility model.

[0013] The attached diagram lists the components represented by each number as follows: 1. Box body; 2. Buffer assembly; 21. Angle brace plate; 211. Snap-fit ​​plate; 211a. Snap-fit ​​groove; 212. Inner fold plate; 212a. Snap-fit ​​hole; 213. Upper fold plate; 22. Bridging plate; 22a. Lower snap-fit ​​groove; 23. Mesh frame; 231. Mesh surface; 232. Rubber strip; 232a. Snap-fit ​​ring. Detailed Implementation

[0014] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0015] like Figure 1-4As shown, a packaging box with a cushioning layer includes a box body 1 and a cushioning component 2 disposed inside the box body 1. The cushioning component 2 includes corner braces 21, bridging plates 22 and a wire mesh frame 23. Two corner braces 21 are provided and symmetrically disposed at opposite corners of the bottom surface inside the box body 1. Two bridging plates 22 are provided and both are disposed inside the box body 1. Lower slots 22a are provided on both sides of the bridging plates 22, and the lower slots 22a are embedded and engaged with the slots 211a. The box body 1 is a paper packaging box. The wire frame 23 is set inside the box 1 and is located between two corner bracing plates 21 and two bridging plates 22. The wire frame 23 is provided with a wire mesh 231, and the outer periphery of the wire frame 23 is provided with a movable snap-fit ​​mechanism connected to the corner bracing plates 21.

[0016] As an optional implementation, the movable snap-fit ​​mechanism includes snap-fit ​​holes 212a and rubber strips 232. The rubber strips 232 are sleeved with the snap-fit ​​holes 212a. The snap-fit ​​holes 212a are configured in two sets, with each set of snap-fit ​​holes 212a having an opening on the surface of the inner folding plate 212. There are two inner folding plates 212, and the two inner folding plates 212 are symmetrically fixed on the surfaces of the two corner braces 21. The rubber strips 232 are configured in two sets and are symmetrically fixed on the opposite sides of the outer periphery of the mesh frame 23. In this way, the rubber strips 232 can form a state where the two sides of the mesh frame 23 are connected to the inner folding plates 212, thereby providing connection support for the mesh frame 23. The tensile strength of each rubber strip 232 is not less than 10 MPa, and the resilience is not less than 80%.

[0017] See attached document Figure 3 The housing 1 is equipped with two sets of locking rings 232a, which are symmetrically arranged on opposite sides of the two inner folding plates 212. The two sets of locking rings 232a are fixed to the free ends of the two sets of rubber strips 232 respectively. In this way, the locking rings 232a can provide tensile locking to the rubber strips 232, thereby using the elasticity of the rubber strips 232 to provide elastic cushioning for downward pressure on the mesh frame 23.

[0018] See attached document Figure 4 Parallel snap-fit ​​plates 211 are bent on both sides of the opposite surfaces of the two corner braces 21, and snap-fit ​​grooves 211a are opened on the snap-fit ​​plates 211. This allows the snap-fit ​​plates 211 to cross-snap with the bridge plate 22, thereby improving the stability strength after the corner braces 21 and the bridge plate 22 are snapped together, thus providing suspended support for the wire frame 23 and the wire mesh 231.

[0019] Furthermore, two symmetrical upper folding plates 213 are provided inside the box body 1. The two upper folding plates 213 are located below the mesh surface 231 and fixed on the opposite sides of the two corner bracing plates 21. In this way, the upper folding plates 213 can reduce the downward shearing force on the bottom surface of the box body 1 by using the opposite sides of the two corner bracing plates 21, thereby reducing the damage to the box body 1.

[0020] Furthermore, the edges of the retaining hole 212a are ground to be obtuse angles, which reduces the shear friction on the rubber strip 232 when it is pressed down, thereby improving the service life of the buffer assembly 2.

[0021] Furthermore, the lower sides of the opposite sides of the two corner braces 21 are bent at obtuse angles. This allows the two corner braces 21 to overlap and support the inner bottom surface of the box 1, and reduces the cross-shear force on the inner bottom surface of the box 1 when the buffer assembly 2 is pressed down, thereby improving the support effect.

[0022] Using the above structure, firstly, two corner bracing plates 21 are symmetrically placed at opposite corners of the bottom surface of the box 1, ensuring that the obtuse-angled bends on the lower sides of the corner bracing plates 21 are completely flush with the bottom surface of the box 1. Then, two bridging plates 22 are inserted and snapped into the corresponding snap-fit ​​grooves 211a of the snap-fit ​​plates 211 on the corner bracing plates 21 through the lower snap-fit ​​grooves 22a on both sides, forming a cross-support structure. Next, the mesh frame 23, pre-assembled with rubber strips 232, is placed within the space enclosed by the two corner bracing plates 21 and the two bridging plates 22, so that the rubber strips 232 on both sides of the mesh frame 23 are accurately fitted into the snap-fit ​​holes 212a on the inner folding plate 212. The two sets of snap-fit ​​rings 232a are located at the free ends of the rubber strips 232 and on the opposite sides of the inner folding plate 212, respectively, to restrict the rubber strips 232. In this way, the mesh frame 23 can form an elastic support using the rubber strips 232, thereby cushioning the falling parts inside the packaging box.

[0023] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. This application is mainly used to protect mechanical devices. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field.

Claims

1. A packaging box with a cushioning layer, comprising a box body (1) and a cushioning assembly (2) disposed within the box body (1), the cushioning assembly (2) comprising corner braces (21), bridging plates (22) and a wire mesh frame (23), the corner braces (21) being configured as two pieces and symmetrically disposed at opposite corners of the bottom surface of the box body (1), the bridging plates (22) being configured as two pieces and both disposed within the box body (1), the bridging plates (22) having lower slots (22a) on both sides, the lower slots (22a) being embedded and engaged with slots (211a); The wire frame (23) is set inside the box (1) and located between two corner bracing plates (21) and two bridging plates (22). The wire frame (23) is provided with a wire mesh (231). The outer periphery of the wire frame (23) is provided with a movable snap-fit ​​mechanism connected to the corner bracing plates (21). Its features are: The movable snap-fit ​​mechanism includes a snap-fit ​​hole (212a) and a rubber strip (232). The rubber strip (232) is sleeved with the snap-fit ​​hole (212a). The snap-fit ​​hole (212a) is set in two sets. The surface of each set of snap-fit ​​holes (212a) is opened on the inner folding plate (212). The inner folding plate (212) is set in two pieces, and the two inner folding plates (212) are symmetrically fixed on the surface of the two corner braces (21). The rubber strip (232) is set in two sets and is symmetrically fixed on the opposite sides of the outer periphery of the wire frame (23). The housing (1) is provided with two sets of locking rings (232a), and the two sets of locking rings (232a) are symmetrically arranged on opposite sides of the two inner folding plates (212). The two sets of locking rings (232a) are respectively fixed to the free ends of the two sets of rubber strips (232). Parallel snap-fit ​​plates (211) are bent on both sides of the opposite surfaces of the two corner braces (21), and the snap-fit ​​grooves (211a) are formed on the snap-fit ​​plates (211). The box (1) is provided with two symmetrical upper folding plates (213). The two upper folding plates (213) are located below the mesh surface (231) and fixed on the opposite sides of the two corner bracing plates (21).

2. A packaging box with a cushioning layer according to claim 1, characterized in that: The edges of the retaining hole (212a) are ground to be obtuse.

3. A packaging box with a cushioning layer according to claim 2, characterized in that: The lower sides of the two corner braces (21) on opposite sides are bent at obtuse angles.

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