Epp combined compression packaging box

Abstract

The present application relates to the technical field of packaging boxes, and specifically discloses an epp combined compression-resistant packaging box, which comprises a box body assembly, a box plate piece movably installed in the box body assembly, a counterweight lifting mechanism arranged on the box body assembly and connected with the box plate piece, the box plate piece changing the internal containing space of the box body assembly in a lifting manner, the counterweight lifting mechanism adjusting the height of the box plate piece in a counterweight change manner, a cover plate assembly arranged at the upper end of the box body assembly, a base assembly installed at the bottom of the box body assembly, the box body assembly comprising a box body, an inner sliding groove arranged on the inner side wall surface of the box body, a receiving rail arranged on the inner sliding groove, an outer sliding groove arranged on the outer side surface of the box body, and a sliding rail groove arranged on the outer sliding groove, when a staff member needs to take out the articles located at the bottom of the box body, the counterweight blocks on both sides can be pressed to lift the box bottom plate upward, so that the staff member can more conveniently take out the articles on the box bottom plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging boxes, more particularly to an epp combined compression-resistant packaging box. BACKGROUND

[0002] EPP, which stands for expanded polypropylene, is a high-performance foam material with characteristics such as light weight, high elasticity, impact resistance, temperature resistance, environmental protection, etc., and is widely used in packaging, automobiles, aerospace, etc.

[0003] Currently, epp material is used in the manufacturing of packaging boxes. Such packaging boxes have the advantages of low density, high cushioning performance, and wide working temperature range, but in actual use, the epp packaging boxes under the prior art still have the following shortcomings:

[0004] Firstly, the accommodating space size of the epp packaging box under the prior art is fixed. When some small-volume items need to be stored, the relatively wide accommodating space will increase the range of jolting motion of the items during transportation, thereby easily causing damage to the items. Moreover, when small-volume items are placed in an epp packaging box with a relatively deep accommodating height, it will be inconvenient for workers to take the items.

[0005] Secondly, when the weight of the items exceeds the maximum bearing capacity of the bottom plate of the combined epp packaging box under the prior art, the bottom plate of the box is easily detached, thereby causing the items to fall and be damaged.

[0006] Therefore, in order to solve the above problems, an epp combined compression-resistant packaging box is needed. SUMMARY

[0007] In order to overcome the above-mentioned defects of the prior art, the present application provides an epp combined compression-resistant packaging box to solve the problems existing in the background art.

[0008] The present application provides the following technical solution: an epp combined compression-resistant packaging box, comprising a box body assembly, a box plate piece movably installed inside the box body assembly, a counterweight lifting mechanism provided on the box body assembly, and the counterweight lifting mechanism and the box plate piece being connected to each other.

[0009] The box plate piece changes the internal accommodating space of the box body assembly in a lifting manner.

[0010] The counterweight lifting mechanism adjusts the height of the box plate piece in a counterweight-changing manner.

[0011] Further, the upper end of the box body assembly is provided with a cover plate assembly, and the bottom of the box body assembly is provided with a base assembly.

[0012] Further, the box body assembly comprises a box body, an inner sliding groove is formed on the inner side wall surface of the box body, a receiving rail is formed on the inner sliding groove, an outer sliding groove is formed on the outer side surface of the box body, and a sliding rail groove is formed on the outer sliding groove.

[0013] Further, the box plate piece comprises a box bottom plate, lugs are arranged at both ends of the box bottom plate, the lugs are matched with the inner sliding groove and the receiving rail, and the box bottom plate is movably sleeved in the box body through the lugs.

[0014] Further, the counterweight lifting mechanism comprises a shaft support plate, the shaft support plate is fixedly installed at the upper end of the outer sliding groove on both sides, a rotating shaft is sleeved between the shaft support plates, a pulley is movably sleeved on the rotating shaft, a receiving groove is formed on the pulley, a lifting belt is wound on the receiving groove, a sliding block is movably sleeved in the outer sliding groove, sliding strips are arranged on both sides of the sliding block, the sliding strips are movably sleeved with the sliding rail groove, a counterweight block is fixedly installed at the bottom of the sliding block, one end of the lifting belt is fixedly connected with the sliding block, the other end of the lifting belt is fixedly connected with the lug, and the body of the lifting belt is received in the receiving rail.

[0015] Further, a concave groove is formed on the counterweight block, an upper limiting block is fixedly installed at the upper end of the outer sliding groove, and a lower limiting plate is fixedly installed at the bottom end of the outer sliding groove.

[0016] Further, the cover plate assembly comprises a cover plate piece, receiving arc grooves are formed on both sides of the cover plate piece, positioning lock protrusions are arranged on the inner wall of the upper end of the receiving arc grooves and are uniformly distributed, and the positioning lock protrusions press and fix the lifting belt when the cover plate piece is combined with the box body.

[0017] Further, the base assembly comprises a bottom frame, the bottom frame is fixedly installed at the bottom of the box body, a buffer plate is movably sleeved in the bottom frame, a seat plate is fixedly installed at the bottom of the bottom frame, and buffer springs are arranged between the buffer plate and the seat plate and are uniformly distributed.

[0018] The technical effects and advantages of the present application are as follows:

[0019] The counterweight lifting mechanism is provided, when small and light objects are placed on the box bottom plate, under the action of gravity, the counterweight block moves downward in the outer sliding groove, so that the box bottom plate is pulled upward by the pulley and the lifting belt, the internal accommodating space of the box body is reduced after the box bottom plate is lifted, so that the shaking range of the objects during transportation is reduced, and the damage probability of the objects is reduced, when the number and weight of the objects are increased, if the weight of the counterweight block is not enough to pull up the objects on the box bottom plate, the box bottom plate moves downward to increase the internal accommodating space of the box body, when the worker needs to take out the objects located at the bottom of the box body, the worker can press the counterweight blocks on both sides to lift the box bottom plate upward, so that the worker can more conveniently take out the objects on the box bottom plate.

[0020] The base assembly is provided, when the articles placed on the box bottom plate are too heavy, the box bottom plate is separated from the lifting belt, or the lifting belt is broken, the box bottom plate falls down and is received by the buffer plate, under the buffering effect of the buffer plate and the buffer spring, the damage of the falling box bottom plate to the stored articles can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the present application.

[0022] Figure 2 It is a schematic diagram of the overall structure of the present application.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the box of the present application.

[0024] Figure 4 It is an exploded schematic diagram of the counterweight lifting mechanism of the present application.

[0025] Figure 5 It is a schematic diagram of the overall structure of the present application Figure 1 It is an enlarged structural schematic diagram of place A.

[0026] Figure 6 It is a schematic diagram of the overall structure of the present application Figure 1 It is an enlarged structural schematic diagram of place B.

[0027] Figure 7 It is a schematic diagram of the base assembly structure of the present application.

[0028] The reference signs are: 1, box body assembly; 101, box; 102, inner sliding groove; 103, storage rail; 104, outer sliding groove; 105, sliding rail groove; 2, box plate; 201, box bottom plate; 202, lug; 3, counterweight lifting mechanism; 301, shaft support plate; 302, rotating shaft; 303, pulley; 304, recessed slot; 305, lifting belt; 306, sliding block; 307, sliding bar; 308, counterweight block; 309, recessed groove; 310, upper limit block; 311, lower limit plate; 4, cover plate assembly; 401, cover plate; 402, storage arc groove; 403, positioning lock convex; 5, base assembly; 501, bottom frame; 502, buffer plate; 503, seat plate; 504, buffer spring. DETAILED DESCRIPTION

[0029] The technical solutions in the present application will be described clearly and completely in combination with the drawings in the present application, and in addition, the forms of each structure described in the following embodiments are only examples, and all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the present application.

[0030] With reference to Figure 1 and Figure 2 The application provides an epp combined compression-resistant packaging box, which comprises a box body assembly 1, a box plate piece 2 movably arranged in the box body assembly 1, a counterweight lifting mechanism 3 arranged on the box body assembly 1, the counterweight lifting mechanism 3 being connected with the box plate piece 2, a cover plate assembly 4 arranged at the upper end of the box body assembly 1, and a base assembly 5 arranged at the bottom of the box body assembly 1.

[0031] In the embodiment, the box plate piece 2 can be lifted and lowered in the box body assembly 1, the internal storage space of the box body assembly 1 is reduced when the box plate piece 2 is lifted upwards, the internal storage space of the box body assembly 1 is increased when the box plate piece 2 is lowered downwards, the cover plate assembly 4 can be covered on the box body assembly 1 to seal the box body assembly 1, and the base assembly 5 provides a falling buffering function for the objects stored in the box body assembly 1.

[0032] With reference to Figure 3 The box body assembly 1 comprises a box body 101, an inner sliding groove 102 is arranged on the inner side wall surface of the box body 101, a receiving rail 103 is arranged on the inner sliding groove 102, an outer sliding groove 104 is arranged on the outer side surface of the box body 101, a sliding rail groove 105 is arranged on the outer sliding groove 104, the box plate piece 2 comprises a box bottom plate 201, lugs 202 are arranged at both ends of the box bottom plate 201, the lugs 202 are matched with the inner sliding groove 102 and the receiving rail 103, and the box bottom plate 201 is movably sleeved in the box body 101 through the lugs 202.

[0033] In the embodiment, the box bottom plate 201 can be lifted and lowered in the box body 101, so that the internal storage space of the box body 101 is adjusted.

[0034] With reference to Figure 4 and Figure 5The counterweight lifting mechanism 3 comprises shaft support plates 301 fixedly installed at the upper ends of the outer sliding grooves 104, shafts 302 sleeved between the shaft support plates 301, pulleys 303 movably sleeved on the shafts 302, recessed receiving grooves 304 formed in the pulleys 303, lifting belts 305 wound around the recessed receiving grooves 304, sliding blocks 306 movably sleeved in the outer sliding grooves 104, sliding strips 307 arranged at the two sides of the sliding blocks 306 and movably sleeved with the sliding rail grooves 105, counterweight blocks 308 fixedly installed at the bottom of the sliding blocks 306, one end of the lifting belts 305 fixedly connected with the sliding blocks 306, the other end of the lifting belts 305 fixedly connected with the lugs 202, the lifting belts 305 accommodated in the receiving rails 103, recessed grooves 309 formed in the counterweight blocks 308, upper limit blocks 310 fixedly installed at the upper ends of the outer sliding grooves 104, and lower limit plates 311 fixedly installed at the bottom ends of the outer sliding grooves 104.

[0035] In the embodiment, when the small-volume and light-weight articles are placed on the box bottom plate 201, the counterweight blocks 308 move downward in the outer sliding grooves 104 under the action of gravity, so that the box bottom plate 201 is pulled upward by the pulleys 303 and the lifting belts 305. After the box bottom plate 201 is lifted, the internal accommodating space of the box body 101 is reduced, so that the shaking range of the articles during transportation is reduced, thereby reducing the damage probability of the articles. When the number and weight of the articles increase, the weight of the counterweight blocks 308 is insufficient to pull up the articles on the box bottom plate 201, the box bottom plate 201 moves downward to increase the internal accommodating space of the box body 101. When the worker needs to take out the articles at the bottom of the box body 101, the worker can press the counterweight blocks 308 on the two sides to lift the box bottom plate 201 upward, so that the worker can more conveniently take out the articles on the box bottom plate 201.

[0036] The weight of the counterweight blocks 308 can be selected according to the actual use of the box body 101.

[0037] With reference to Figure 6 The cover plate assembly 4 comprises a cover plate 401, recessed arc grooves 402 formed at the two sides of the cover plate 401, and positioning lock protrusions 403 evenly arranged on the inner walls of the upper ends of the recessed arc grooves 402. When the cover plate 401 is combined with the box body 101, the positioning lock protrusions 403 press and fix the lifting belts 305.

[0038] In the embodiment, when the box body 101 is combined with the cover plate 401, the positioning lock protrusions 403 press and fix the lifting belts 305, so that the lifting belts 305 are prevented from sliding during transportation, and the box bottom plate 201 is more stable during transportation.

[0039] With reference to Figure 7The base assembly 5 comprises a bottom frame 501 fixedly installed at the bottom of the box body 101, a buffer plate 502 movably sleeved in the bottom frame 501, a seat plate 503 fixedly installed at the bottom of the bottom frame 501, and buffer springs 504 evenly arranged between the buffer plate 502 and the seat plate 503.

[0040] In the embodiment, when the articles placed on the box bottom plate 201 are too heavy, the box bottom plate 201 is separated from the lifting belt 305 or the lifting belt 305 is broken, the box bottom plate 201 falls downward and is received by the buffer plate 502, and the damage of the articles caused by the falling of the box bottom plate 201 can be prevented under the buffering effect of the buffer plate 502 and the buffer springs 504.

[0041] The working principle of the application is as follows: when small and light articles are placed on the box bottom plate 201 during use of the packaging box, the counterweight 308 moves downward in the outer sliding groove 104 under the action of gravity, so that the box bottom plate 201 is pulled upward by the pulley 303 and the lifting belt 305, the internal accommodating space of the box body 101 is reduced after the box bottom plate 201 is lifted, so that the shaking range of the articles during transportation is reduced, thereby reducing the damage probability of the articles, when the number and weight of the articles are increased, the weight of the counterweight 308 is insufficient to pull up the articles on the box bottom plate 201, the box bottom plate 201 moves downward to increase the internal accommodating space of the box body 101, when the worker needs to take out the articles at the bottom of the box body 101, the counterweight 308 on both sides is pressed to lift the box bottom plate 201 upward, so that the worker can more conveniently take out the articles on the box bottom plate 201, when the articles placed on the box bottom plate 201 are too heavy, the box bottom plate 201 is separated from the lifting belt 305 or the lifting belt 305 is broken, the box bottom plate 201 falls downward and is received by the buffer plate 502, and the damage of the articles caused by the falling of the box bottom plate 201 can be prevented under the buffering effect of the buffer plate 502 and the buffer springs 504.

[0042] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0043] Secondly: the present application discloses only the structures related to the present application in the drawings, other structures can refer to the usual design, and the same embodiment and different embodiments of the present application can be combined with each other under the condition of no conflict;

[0044] Finally: the above only for the preferred embodiments of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A epp combined compression-resistant packaging box, comprising a box body assembly (1), a box plate piece (2) is movably mounted in the inside of the box body assembly (1), characterized in that, The counterweight lifting mechanism (3) is connected with the box plate (2); The box plate (2) changes the internal space of the box body assembly (1) in a lifting manner; The counterweight lifting mechanism (3) adjusts the height of the box plate (2) in a counterweight changing manner; The box body assembly (1) comprises a box body (101), an inner sliding groove (102) is formed in the inner side wall of the box body (101), a receiving rail (103) is formed in the inner sliding groove (102), an outer sliding groove (104) is formed in the outer side of the box body (101), and a sliding rail groove (105) is formed in the outer sliding groove (104); The box plate (2) comprises a box bottom plate (201), both ends of the box bottom plate (201) are provided with lugs (202), the lugs (202) are matched with the inner sliding groove (102) and the receiving rail (103), and the box bottom plate (201) is movably sleeved in the box body (101) through the lugs (202); The counterweight lifting mechanism (3) comprises a shaft support plate (301), the shaft support plate (301) is fixedly installed at the upper ends of the outer sliding groove (104) on both sides, a rotating shaft (302) is sleeved between the shaft support plates (301), a pulley (303) is movably sleeved on the rotating shaft (302), a recess groove (304) is formed in the pulley (303), a lifting belt (305) is wound in the recess groove (304), a sliding block (306) is movably sleeved in the outer sliding groove (104), sliding strips (307) are arranged on both sides of the sliding block (306), the sliding strips (307) are movably sleeved with the sliding rail groove (105), a counterweight block (308) is fixedly installed at the bottom of the sliding block (306), one end of the lifting belt (305) is fixedly connected with the sliding block (306), the other end of the lifting belt (305) is fixedly connected with the lug (202), and the body of the lifting belt (305) is received in the receiving rail (103); A concave groove (309) is formed in the counterweight block (308), an upper limiting block (310) is fixedly installed at the upper end of the outer sliding groove (104), and a lower limiting plate (311) is fixedly installed at the bottom end of the outer sliding groove (104); An upper cover assembly (4) is arranged at the upper end of the box body assembly (1), and a base assembly (5) is arranged at the bottom of the box body assembly (1); The base assembly (5) comprises a bottom frame (501), the bottom frame (501) is fixedly installed at the bottom of the box body (101), a buffer plate (502) is movably sleeved in the bottom frame (501), a seat plate (503) is fixedly installed at the bottom of the bottom frame (501), and a plurality of buffer springs (504) are evenly arranged between the buffer plate (502) and the seat plate (503).

2. A combination epp compression resistant packaging box according to claim 1, wherein: The cover plate assembly (4) comprises a cover plate (401), both sides of the cover plate (401) are provided with receiving arc grooves (402), the inner walls of the upper ends of the receiving arc grooves (402) are provided with uniformly distributed positioning lock protrusions (403), and the positioning lock protrusions (403) press and fix the lifting belts (305) when the cover plate (401) is covered with the box body (101).

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