Epp combined type compression-resistant packaging box

Abstract

The invention relates to the technical field of packaging boxes, and particularly discloses an epp combined compression-resistant packaging box which comprises a box body assembly, a box plate is movably mounted in the box body assembly, a balance weight lifting mechanism is arranged on the box body assembly and connected with the box plate, and the box plate changes the internal containing space of the box body assembly in a lifting mode. The counter weight lifting adjusting mechanism adjusts the height of the box plate in the mode that the load bearing of the box plate is changed, a cover plate assembly is arranged at the upper end of the box body assembly, a base assembly is installed at the bottom of the box body assembly, the box body assembly comprises a box body, an inner sliding groove is formed in the inner side wall face of the box body, a storage rail is arranged on the inner sliding groove, and an outer sliding groove is formed in the outer side face of the box body. And sliding rail grooves are formed in the outer sliding grooves, and when a worker needs to take out objects located at the bottom of the box body, the box bottom plate can be lifted upwards by pressing the balancing weights on the two sides, so that the worker can take out the objects on the box bottom plate more conveniently.

Description

Technical Field

[0001] This invention relates to the field of packaging box technology, and more specifically to an EPP modular compression-resistant packaging box. Background Technology

[0002] EPP, or expanded polypropylene, is a high-performance foam material with properties such as lightweight, high elasticity, impact resistance, temperature resistance, and environmental friendliness. It is widely used in packaging, automotive, aerospace and other fields. Currently, EPP material is used in the manufacture of packaging boxes. Packaging boxes made of this material have advantages such as low density, high cushioning performance and wide operating temperature range. However, in actual use, EPP packaging boxes under the existing technology still have the following shortcomings. First, the capacity of existing EPP packaging boxes is fixed. When storing small items, a larger capacity increases the range of movement of the items during transportation, which can easily cause damage. Furthermore, when small items are placed in EPP packaging boxes with a greater depth, it can make it inconvenient for staff to retrieve the goods. Secondly, when storing items in existing modular EPP packaging boxes, if the weight of the items exceeds the maximum load-bearing capacity of the box's bottom plate, the bottom plate is prone to detaching, causing the items to fall and potentially damage them. Therefore, in order to solve the above problems, it is necessary to provide an EPP modular compression-resistant packaging box. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an EPP modular compression-resistant packaging box to solve the problems existing in the background art.

[0004] The present invention provides the following technical solution: an EPP modular compression-resistant packaging box, including a box body assembly, a box panel being movably installed inside the box body assembly, and a counterweight lifting mechanism being provided on the box body assembly, the counterweight lifting mechanism being interconnected with the box panel; The box panel can change the internal storage space of the box body assembly by lifting. The counterweight lifting mechanism adjusts the height of the box panel by changing the load-bearing capacity of the box panel.

[0005] Furthermore, the upper end of the housing assembly is provided with a cover plate assembly, and the bottom of the housing assembly is installed with a base assembly.

[0006] Furthermore, the box assembly includes a box body, the inner side wall of the box body is provided with an inner sliding groove, the inner sliding groove is provided with a storage rail, the outer side of the box body is provided with an outer sliding groove, the outer sliding groove is provided with a slide rail groove.

[0007] Furthermore, the box panel includes a bottom plate, both ends of which are provided with lugs. The lugs fit into the inner sliding groove and the storage rail, and the bottom plate is movably sleeved in the box body through the lugs.

[0008] Furthermore, the counterweight lifting mechanism includes shaft support plates, which are respectively fixedly installed on both sides of the upper end of the outer slide groove. A rotating shaft is sleeved between the shaft support plates, and a pulley is movably sleeved on the rotating shaft. The pulley has a recessed groove, and a lifting belt is wound around the recessed groove. A slider is movably sleeved in the outer slide groove. Sliding strips are provided on both sides of the slider, and the sliding strips are movably sleeved with the slide rail groove. A counterweight block is fixedly installed at the bottom of the slider. One end of the lifting belt is fixedly connected to the slider, and the other end of the lifting belt is fixedly connected to a lug. The belt body of the lifting belt is stored in a storage rail.

[0009] Furthermore, the counterweight has a groove, an upper limit block is fixedly installed at the upper end of the outer sliding groove, and a lower limit plate is fixedly installed at the bottom end of the outer sliding groove.

[0010] Furthermore, the cover plate assembly includes a cover plate component, both sides of which are provided with receiving arc grooves. The upper inner wall of the receiving arc groove is provided with evenly distributed positioning locking protrusions. When the cover plate component is closed with the box body, the positioning locking protrusions will press and secure the lifting belt.

[0011] Furthermore, the base assembly includes a base frame, which is fixedly installed at the bottom of the housing. A buffer plate is movably sleeved in the base frame, and a seat plate is fixedly installed at the bottom of the base frame. Buffer springs are evenly distributed between the buffer plate and the seat plate.

[0012] The technical effects and advantages of this invention are as follows: This invention features a counterweight lifting mechanism. When small, lightweight items are placed on the bottom plate of the box, the counterweight moves downward in the outer groove under gravity, thereby using pulleys and a lifting belt to pull the bottom plate upward. Raising the bottom plate reduces the internal space of the box, thus minimizing the impact range of the items during transport and reducing the probability of damage. When the quantity and weight of the items increase, and the counterweight is insufficient to lift the items on the bottom plate, the bottom plate moves downward, increasing the internal space of the box. When workers need to remove items located at the bottom of the box, they can press the counterweights on both sides to lift the bottom plate upward, making it easier for them to retrieve the items.

[0013] The present invention is equipped with a base assembly. When the items placed on the bottom plate of the box are too heavy, the bottom plate will detach from the lifting belt, or the lifting belt will break. The bottom plate will fall downward and be supported by a buffer plate. Under the buffering effect of the buffer plate and the buffer spring, the damage to the stored items caused by the falling bottom plate can be prevented. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the box body of the present invention.

[0017] Figure 4 This is an exploded view of the counterweight lifting mechanism of the present invention.

[0018] Figure 5 For the present invention Figure 1 A magnified structural diagram of point A.

[0019] Figure 6 For the present invention Figure 1 A magnified structural diagram of point B.

[0020] Figure 7 This is a schematic diagram of the base assembly structure of the present invention.

[0021] The attached diagram is labeled as follows: 1. Box body assembly; 101. Box body; 102. Inner slide groove; 103. Storage rail; 104. Outer slide groove; 105. Slide rail groove; 2. Box panel; 201. Box bottom plate; 202. Lug; 3. Counterweight lifting mechanism; 301. Shaft support plate; 302. Rotating shaft; 303. Pulley; 304. Recessed storage groove; 305. Lifting belt; 306. Slider; 307. Sliding bar; 308. Counterweight block; 309. Groove; 310. Upper limit block; 311. Lower limit plate; 4. Cover plate assembly; 401. Cover plate; 402. Storage arc groove; 403. Positioning lock protrusion; 5. Base assembly; 501. Base frame; 502. Buffer plate; 503. Seat plate; 504. Buffer spring. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The EPP modular compression-resistant packaging box involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Reference Figure 1 and Figure 2 The present invention provides an EPP modular compression-resistant packaging box, including a box body assembly 1, a box panel 2 movably installed inside the box body assembly 1, a counterweight lifting mechanism 3 provided on the box body assembly 1, the counterweight lifting mechanism 3 being connected to the box panel 2, a cover plate assembly 4 provided at the upper end of the box body assembly 1, and a base assembly 5 installed at the bottom of the box body assembly 1. In this embodiment, the box panel 2 can move up and down in the box body assembly 1. When the box panel 2 moves upward, the internal storage space of the box body assembly 1 will shrink. When the box panel 2 moves downward, the internal storage space of the box body assembly 1 will increase. The cover assembly 4 can cover the box body assembly 1 to seal the box body assembly 1. The base assembly 5 provides a fall buffer function for the items stored inside the box body assembly 1.

[0024] Reference Figure 3 The box body assembly 1 includes a box body 101. The inner side wall of the box body 101 is provided with an inner sliding groove 102. The inner sliding groove 102 is provided with a storage rail 103. The outer side of the box body 101 is provided with an outer sliding groove 104. The outer sliding groove 104 is provided with a sliding rail groove 105. The box panel 2 includes a box bottom plate 201. Both ends of the box bottom plate 201 are provided with lugs 202. The lugs 202 fit into the inner sliding groove 102 and the storage rail 103. The box bottom plate 201 is movably sleeved in the box body 101 through the lugs 202. In this embodiment, the bottom plate 201 can move up and down in the box 101 to adjust the internal storage space of the box 101.

[0025] Reference Figure 4 and Figure 5 The counterweight lifting mechanism 3 includes a shaft support plate 301, which is fixedly installed on both sides of the upper end of the outer slide groove 104. A rotating shaft 302 is sleeved between the shaft support plates 301. A pulley 303 is movably sleeved on the rotating shaft 302. A recessed groove 304 is formed on the pulley 303. A lifting belt 305 is wound around the recessed groove 304. A slider 306 is movably sleeved in the outer slide groove 104. Sliding strips 307 are provided on both sides of the slider 306. The slider 306 is movably connected to the slide rail 105. A counterweight 308 is fixedly installed at the bottom of the slider 306. One end of the lifting belt 305 is fixedly connected to the slider 306, and the other end of the lifting belt 305 is fixedly connected to the lug 202. The belt body of the lifting belt 305 is stored in the storage rail 103. A groove 309 is provided on the counterweight 308. An upper limit block 310 is fixedly installed at the upper end of the outer slide rail 104, and a lower limit plate 311 is fixedly installed at the bottom end of the outer slide rail 104. In this embodiment, when small and lightweight items are placed on the bottom plate 201 of the box, the counterweight 308 moves downward in the outer slide 104 under the action of gravity, thereby using the pulley 303 and the lifting belt 305 to pull the bottom plate 201 of the box upward. After the bottom plate 201 is raised, the internal storage space of the box 101 will be reduced, thereby reducing the range of bumps during transportation and reducing the probability of damage to the items. When the number and weight of the items increase, if the weight of the counterweight 308 is insufficient to lift the items on the bottom plate 201, the bottom plate 201 moves downward to raise the internal storage space of the box 101. When the staff needs to take out the items located at the bottom of the box 101, they can press the counterweights 308 on both sides to lift the bottom plate 201 upward, so that the staff can take out the items on the bottom plate 201 more conveniently. The weight of counterweight 308 can be selected based on the actual usage of the housing 101.

[0026] Reference Figure 6 The cover plate assembly 4 includes a cover plate 401. Both sides of the cover plate 401 are provided with receiving arc grooves 402. The upper inner wall of the receiving arc grooves 402 is provided with evenly distributed positioning locking protrusions 403. When the cover plate 401 is closed with the box 101, the positioning locking protrusions 403 press the lifting belt 305 in place. In this embodiment, when the box body 101 is closed with the cover plate 401, the positioning locking protrusion 403 presses the lifting belt 305 to prevent the lifting belt 305 from sliding during transportation, thereby making the box bottom plate 201 more stable during transportation.

[0027] Reference Figure 7 The base assembly 5 includes a base frame 501, which is fixedly installed at the bottom of the housing 101. A buffer plate 502 is movably sleeved in the base frame 501. A seat plate 503 is fixedly installed at the bottom of the base frame 501. A buffer spring 504 is evenly distributed between the buffer plate 502 and the seat plate 503. In this embodiment, when the items placed on the bottom plate 201 are too heavy, causing the bottom plate 201 to detach from the lifting belt 305, or when the lifting belt 305 breaks, the bottom plate 201 falls downward and is supported by the buffer plate 502. Under the buffering effect of the buffer plate 502 and the buffer spring 504, the damage to the stored items caused by the falling bottom plate 201 can be prevented.

[0028] The working principle of this invention is as follows: When small, lightweight items are placed on the bottom plate 201 of the box, the counterweight 308 moves downward in the outer slide groove 104 under the action of gravity. This, in turn, uses the pulley 303 and lifting belt 305 to pull the bottom plate 201 upward. The increased height of the bottom plate 201 reduces the internal space of the box 101, thus reducing the range of bumps during transport and lowering the probability of damage. When the quantity and weight of the items increase, and the counterweight 308 is insufficient to lift the items on the bottom plate 201, the bottom plate 201 moves downward to lift... The internal storage space of the lifting box 101 allows staff to easily remove items from the bottom of the box 101 by pressing the counterweights 308 on both sides. This makes it easier for staff to remove items from the bottom of the box 201. If the items placed on the bottom of the box 201 are too heavy, causing the bottom of the box 201 to detach from the lifting belt 305, or if the lifting belt 305 breaks, the bottom of the box 201 will fall downwards and be caught by the buffer plate 502. Under the buffering effect of the buffer plate 502 and the buffer spring 504, the damage to the stored items caused by the fall of the bottom of the box 201 can be prevented.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An EPP modular compression-resistant packaging box, comprising a box body assembly (1), wherein a box panel (2) is movably installed inside the box body assembly (1), characterized in that, The box body assembly (1) is provided with a counterweight lifting mechanism (3), which is connected to the box panel (2); The box panel (2) changes the internal storage space of the box body assembly (1) by lifting; The counterweight lifting mechanism (3) adjusts the height of the box plate (2) by changing the load on the box plate (2).

2. The EPP modular compression-resistant packaging box according to claim 1, characterized in that: The upper end of the box body assembly (1) is provided with a cover plate assembly (4), and the bottom of the box body assembly (1) is provided with a base assembly (5).

3. The EPP modular compression-resistant packaging box according to claim 1, characterized in that: The box assembly (1) includes a box body (101), an inner sliding groove (102) is provided on the inner side wall of the box body (101), a storage rail (103) is provided on the inner sliding groove (102), an outer sliding groove (104) is provided on the outer side of the box body (101), and a slide rail groove (105) is provided on the outer sliding groove (104).

4. The EPP modular compression-resistant packaging box according to claim 1, characterized in that: The box panel (2) includes a box bottom plate (201), and both ends of the box bottom plate (201) are provided with lugs (202). The lugs (202) fit into the inner sliding groove (102) and the storage rail (103). The box bottom plate (201) is movably sleeved in the box body (101) through the lugs (202).

5. The EPP modular compression-resistant packaging box according to claim 1, characterized in that: The counterweight lifting mechanism (3) includes a shaft support plate (301), which is fixedly installed on both sides of the upper end of the outer slide groove (104). A rotating shaft (302) is sleeved between the shaft support plates (301). A pulley (303) is movably sleeved on the rotating shaft (302). A recessed groove (304) is provided on the pulley (303). A lifting belt (305) is wound around the recessed groove (304). A lifting belt (305) is movably sleeved in the outer slide groove (104). There is a slider (306), and there are slide bars (307) on both sides of the slider (306). The slide bars (307) are movably connected to the slide rail groove (105). A counterweight (308) is fixedly installed at the bottom of the slider (306). One end of the lifting belt (305) is fixedly connected to the slider (306), and the other end of the lifting belt (305) is fixedly connected to the lug (202). The belt body of the lifting belt (305) is stored in the storage rail (103).

6. The EPP modular compression-resistant packaging box according to claim 5, characterized in that: The counterweight (308) has a groove (309) on it, the upper end of the outer slide (104) is fixedly installed with an upper limit block (310), and the bottom end of the outer slide (104) is fixedly installed with a lower limit plate (311).

7. The EPP modular compression-resistant packaging box according to claim 2, characterized in that: The cover plate assembly (4) includes a cover plate component (401). Both sides of the cover plate component (401) are provided with receiving arc grooves (402). The upper inner wall of the receiving arc groove (402) is provided with evenly distributed positioning locking protrusions (403). When the cover plate component (401) is closed with the box body (101), the positioning locking protrusions (403) press and fix the lifting belt (305).

8. The EPP modular compression-resistant packaging box according to claim 2, characterized in that: The base assembly (5) includes a base frame (501), which is fixedly installed at the bottom of the box (101). A buffer plate (502) is movably sleeved in the base frame (501), and a seat plate (503) is fixedly installed at the bottom of the base frame (501). Buffer springs (504) are evenly distributed between the buffer plate (502) and the seat plate (503).

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