Bottom guide rail mounting structure of non-metal airtight packaging box

Abstract

The utility model relates to an installation structure, in particular to a non-through installation structure of a force bearing guide rail at the bottom of a non-metal airtight packaging box. A non-metal airtight packaging box bottom guide rail mounting structure comprises a packaging box bottom plate and a bottom guide rail, the packaging box bottom plate is of a concave-convex structure, a plurality of bottom connecting bridges are fixed in a groove and distributed at intervals in the length direction of the groove, the upper surfaces of the bottom connecting bridges are lower than the upper surface of the packaging box bottom plate, and the lower surfaces of the bottom connecting bridges are higher than the lower surface of the packaging box bottom plate; the bottom guide rail is laid in the width direction of the groove and located above the bottom connecting bridge. And the bottom guide rail is fixed on the bottom plate of the packaging box through a connecting piece penetrating through the bottom of the bottom connecting bridge. The utility model has the following advantages: 1, the air tightness problem caused by the air tightness is avoided; 2, the mounting difficulty of the bottom guide rail is reduced, and the working efficiency is improved; and 3, the high rigidity of the bottom of the packaging box is improved, and the problem of high rigidity caused by assembly between a metal guide rail and a non-metal box body is avoided.

Description

Technical Field

[0001] The utility model relates to a mounting structure, in particular to a non-through mounting structure of a load-bearing guide rail at the bottom of a non-metallic airtight packaging box. Background Art

[0002] Medium and large airtight packaging boxes generally use an in-box trailer to secure the contents inside the box and carry out box operations. Bottom guide rails are generally set inside the box to guide the trailer inside the box and reinforce the box body.

[0003] For non-metallic airtight packaging boxes, the bottom guide rails often need to be installed by using bolts and nuts to pass through the box body. Although this installation method can ensure the airtightness of the entire box to a certain extent through sealing means such as sealing rings, due to the large number of bolts and nuts distributed, it still has a great impact on the airtightness of the packaging box during long-term use. After repeated use, it is very easy to cause gas leakage in the box. Utility Model Content

[0004] The purpose of the utility model is to provide a bottom guide rail installation structure for a non-metallic airtight packaging box, which adopts a non-through-box method to install the bottom guide rail, thereby avoiding the airtightness problem caused thereby.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a non-metallic airtight packaging box bottom guide rail installation structure, including a packaging box bottom plate and a bottom guide rail. The packaging box bottom plate adopts a concave-convex structure, and a plurality of bottom connecting bridges are fixed in the groove. The bottom connecting bridges are arranged at intervals along the length direction of the groove, and their upper surfaces are lower than the upper surface of the packaging box bottom plate, and the lower surfaces are higher than the lower surface of the packaging box bottom plate; the bottom guide rail is laid along the width direction of the groove and is located above the bottom connecting bridge; the bottom guide rail is fixed to the packaging box bottom plate by a connecting piece passing through the bottom of the bottom connecting bridge.

[0006] Preferably, the connecting parts include a U-shaped lock, bolts and nuts, and a mounting hole is opened on the ear piece of the U-shaped lock, and the mounting hole corresponds to the through hole opened on the bottom guide rail; during installation, the U-shaped lock is passed through the bottom of the bottom connecting bridge, and the bolts and nuts are passed through the mounting hole and the through hole in turn, thereby connecting and fixing the bottom guide rail to the bottom plate of the packaging box.

[0007] Preferably, the U-shaped lock buckle is machined from aluminum alloy.

[0008] Preferably, after the U-shaped lock is connected and fixed to the bottom guide rail, a gap is retained between the upper surface of the bottom and the lower surface of the bottom connecting bridge.

[0009] Preferably, the bottom connecting bridge is integrally formed with the bottom plate of the packaging box.

[0010] Preferably, the bottom connecting bridge adopts a hollow design.

[0011] Preferably, a reinforcement beam is installed in the bottom connecting bridge; the reinforcement beam is a carbon fiber reinforcement beam.

[0012] Preferably, the bottom connecting bridge and the carbon fiber reinforced beam are interference fit.

[0013] Preferably, the bottom guide rail is centrally laid at the center line of the bottom connecting bridge.

[0014] Principle: The bottom plate of the packaging box adopts a concave-convex structure design, leaving a hollow bottom connecting bridge for connecting and positioning the U-shaped lock and the bottom guide rail; the U-shaped lock is connected and fixed to the bottom guide rail by four sets of bolts and nuts. The U-shaped lock maintains a certain gap between the U-shaped lock and the bottom plate of the packaging box to facilitate the application of the connection preload; to improve the rigidity of the bottom connection, the bottom connecting bridge is embedded with carbon fiber reinforcement beams to play a shaping and reinforcement role.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The bottom guide rail is installed in a non-through box manner to avoid the resulting airtightness problem;

[0017] 2. Reduces the difficulty of installing the bottom guide rail and improves work efficiency;

[0018] 3. The bottom rigidity of the packaging box is improved, avoiding the rigidity problem caused by the assembly between the metal guide rail and the non-metal box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a side structural diagram of the installation embodiment of the utility model;

[0020] Figure 2 This is a cross-sectional view of the installation of an embodiment of the utility model;

[0021] Figure 1-2 In the figure, 1- bottom guide rail; 2- bottom plate of packaging box; 3- U-shaped lock; 4- bottom connecting bridge; 5- carbon fiber reinforced beam. DETAILED DESCRIPTION

[0022] It should be noted that the terms "upper" and "lower" are described according to the drawings or the common usage status, and do not constitute a limitation to the present invention.

[0023] The following is combined with Figure 1-2 The utility model is further described in detail: A non-metallic airtight packaging box bottom guide rail installation structure is mainly composed of a bottom guide rail 1, a packaging box bottom plate 2, a U-shaped lock 3, a bottom connecting bridge 4, and a carbon fiber reinforcement beam 5.

[0024] Specifically, such as Figure 1-2As shown, the bottom guide rail 1 is made of metal material and is used to guide the support vehicle in the box and reinforce the box body;

[0025] The bottom plate 2 of the packaging box is made of non-metallic materials, which are lightweight and corrosion-resistant. In order to improve the bottom rigidity, the bottom plate of the packaging box adopts a concave-convex structure design;

[0026] The U-shaped lock buckle 3 is machined from aluminum alloy and is used to connect and fasten the bottom rail 1. The U-shaped lock buckle 3 is connected and fastened to the bottom rail 1 by four sets of bolts and nuts. A certain gap is maintained between the U-shaped lock buckle 3 and the bottom plate 2 of the packaging box to facilitate the application of the connection preload.

[0027] The bottom connecting bridge 4 is integrally formed with the packaging box. The bottom connecting bridge 4 adopts a hollow design and is used to install the carbon fiber reinforcement beam 5; the carbon fiber reinforcement beam 5 is made of carbon fiber material, has the characteristics of lightness and high strength, and is used to reinforce the bottom connecting bridge 4.

[0028] After the packaging box is formed, the carbon fiber reinforced beam 5 is first installed into the hollow part of the bottom connecting bridge 4. It should be noted that the two should adopt an interference fit; secondly, the bottom guide rail 1 is laid in the center of the bottom connecting bridge 4 at the center line; finally, the U-shaped lock 3 is used with bolts and nuts to connect and tighten the bottom guide rail 1 and the bottom connecting bridge 4 to ensure that the bottom guide rail 1 is completely in contact with the bottom plate 2 of the packaging box.

[0029] Since metal guide rails and non-metallic boxes cannot be welded and fixed, this installation structure completely avoids the connection form of penetrating the box during the connection between the guide rails and the box, thereby improving the overall airtightness of the packaging box. At the same time, the installation process and subsequent adjustments are convenient and quick. The carbon fiber reinforcement beams used can further strengthen the box, ensuring that the overall strength and rigidity meet the use requirements.

Claims

1. A non-metallic airtight packaging box bottom guide rail mounting structure, comprising a packaging box bottom plate and a bottom guide rail, characterized in that: The bottom plate of the packaging box adopts a concave-convex structure, and several bottom connecting bridges are fixed in the groove. The bottom connecting bridges are arranged at intervals along the length direction of the groove. Their upper surface is lower than the upper surface of the packaging box bottom plate, and the lower surface is higher than the lower surface of the packaging box bottom plate; the bottom guide rail is laid along the width direction of the groove and is located above the bottom connecting bridge; the bottom guide rail is fixed to the bottom plate of the packaging box by a connector passing through the bottom of the bottom connecting bridge.

2. The bottom rail mounting structure of a non-metallic airtight packaging box according to claim 1, characterized in that: The connecting parts include a U-shaped lock, bolts and nuts. There is a mounting hole on the ear of the U-shaped lock, and the mounting hole corresponds to the through hole on the bottom guide rail. During installation, the U-shaped lock is passed through the bottom of the bottom connecting bridge, and the bolts and nuts are passed through the mounting hole and the through hole in turn, thereby connecting and fixing the bottom guide rail to the bottom plate of the packaging box.

3. The bottom rail mounting structure of a non-metallic airtight packaging box according to claim 2, characterized in that: The U-shaped lock is machined from aluminum alloy.

4. The bottom rail mounting structure of a non-metallic airtight packaging box according to claim 2, characterized in that: After the U-shaped lock is connected and fixed to the bottom guide rail, a gap is retained between the upper surface of the bottom and the lower surface of the bottom connecting bridge.

5. The bottom rail mounting structure of a non-metallic airtight packaging box according to claim 1, characterized in that: The bottom connecting bridge is integrally formed with the bottom plate of the packaging box.

6. The bottom rail mounting structure of a non-metallic airtight packaging box according to claim 1, characterized in that: The bottom connecting bridge adopts a hollow design.

7. The bottom rail mounting structure of a non-metallic airtight packaging box according to claim 6, characterized in that: A reinforcement beam is installed in the bottom connecting bridge; the reinforcement beam is a carbon fiber reinforced beam.

8. The bottom rail mounting structure of a non-metallic airtight packaging box according to claim 7, characterized in that: The bottom connecting bridge and the carbon fiber reinforced beam adopt interference fit.

9. The bottom rail mounting structure of a non-metallic airtight packaging box according to claim 1, characterized in that: The bottom guide rail is laid centrally on the center line of the bottom connecting bridge.

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