EPS (Expandable Polystyrene) foam box for packaging refrigerator

Abstract

The invention relates to the field of EPS (Expandable Polystyrene) foam boxes, in particular to an EPS foam box for packaging a refrigerator, which comprises a main foam board and extension walls extending outwards along the edges of the front side and the rear side of the main foam board, the front side and the rear side of each extension wall and the front side and the rear side of each auxiliary foam board are each evenly provided with a plurality of penetrating and corresponding fixing holes, each fixing hole is internally provided with a sleeve, the bottom of each sleeve is fixedly connected with a limiting piece, and a bolt is inserted into each sleeve. The EPS foam box can be prevented from being separated, disassembly is free, the situation that a refrigerator is separated from the interior of the foam box due to bumping during long-distance freight transportation is prevented, and the situation that the foam box and the refrigerator in the foam box shake excessively is prevented.

Description

Technical Field

[0001] The invention relates to the field of EPS foam boxes, in particular to an EPS foam box used for packaging refrigerators. Background Art

[0002] EPS foam box is an insulated packaging box made of polystyrene EPS material. EPS is a lightweight, strong foam plastic material with good thermal insulation performance, commonly used to make various packaging boxes and insulation boxes; In the EPS foam boxes in the prior art, for example, an EPS foam box with application number 202110017998.6 and its production formula can solve the problem of powder and debris falling easily during the use of the EPS foam box, but it is not suitable for improving the sealing stability of the EPS foam box when sealing the refrigerator and preventing the EPS foam boxes from detaching. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose an EPS foam box for packaging a refrigerator.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: an EPS foam box for packaging a refrigerator, comprising a main foam board and an extension wall extending outward along the front and rear edge portions of the main foam board, a secondary foam board being buckled on the main foam board, and each extension wall and the front and rear sides of the secondary foam board are evenly provided with a plurality of fixing holes that penetrate and correspond to each other, a sleeve is respectively installed in each fixing hole, a limiting plate is respectively fixedly connected to the bottom of each sleeve, a bolt is inserted into each sleeve, and a nut is respectively threadedly connected to the bottom of each bolt.

[0005] Preferably, each of the sleeves is an aluminum alloy pipe.

[0006] Preferably, a base is provided at the bottom of the main foam board, and a right-angled protrusion is fixedly connected to the four corners of the middle of the upper surface of the base, and the inner surfaces of the four right-angled protrusions are in contact with the four corners of the bottom of the main foam board respectively.

[0007] Preferably, a support plate is fixedly connected to each of the four corners of the base, the tops of the four support plates are fixedly connected to the four corners of the cover plate, and a handle is fixedly connected to the middle portion of the upper side of the cover plate.

[0008] Preferably, a swivel seat is fixedly connected to each of the four corners of the bottom of the base, and a ring protrusion is fixedly connected to the adjacent side of each swivel seat. The two swivel seats on the right are respectively rotatably connected to the front and rear sides of a cross bar, and the two swivel seats on the left are respectively rotatably connected to the front and rear sides of another cross bar, and the front and rear sides of each cross bar are respectively rotatably connected to a rotating wheel.

[0009] Preferably, each of the annular protrusions is fixedly connected to a connecting seat on its upper side, each of the connecting seats is slidably connected to a lifting plate, each of the lifting plates is fixedly connected to a triangular seat mirroring each other on its left and right sides, and a plurality of grooves are evenly arranged on the lower surface of each triangular seat.

[0010] Preferably, each of the swivel seats is provided with a small hole on the upper and lower sides, and each of the connecting seats is provided with a positioning hole on the upper and lower sides, and every two small holes are arranged in a one-to-one correspondence with every two positioning holes. An insertion rod is respectively provided in the two small holes on the front side and on the same horizontal plane, and an insertion rod is respectively provided in the two small holes on the rear side and on any one of the same horizontal planes. The two insertion rods on the rear side are respectively fixedly connected to the left and right sides of a two-way rod, and the two insertion rods on the front side are respectively fixedly connected to the left and right sides of another two-way rod.

[0011] Preferably, a plurality of retaining plates are evenly fixedly connected between the two support plates on the left side, and a plurality of fixed ends of telescopic rods are evenly provided on each retaining plate. The movable ends of the plurality of telescopic rods on a retaining plate are evenly fixedly connected to the middle part of a pad, and a side plate is respectively fixedly connected to the front and rear sides of each pad, and each pad is evenly buckled on the left side surface of the main foam plate through the side plates on the front and rear sides thereof. A spring is respectively sleeved on the movable end of each telescopic rod, and each spring is respectively arranged between the corresponding pad and retaining plate, and each spring is a compression spring.

[0012] Preferably, a plurality of force-bearing plates are evenly and fixedly connected between the two support plates located at the front and rear sides, and a curved plate with a smooth surface is fixedly connected to the outer side of each force-bearing plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Improve the sealing stability of the EPS foam box when sealing the refrigerator, prevent the EPS foam box from detaching, and allow for free disassembly, preventing the refrigerator from detaching from the foam box due to bumps during long-distance freight transportation; 2. It is easy to improve the stability of the refrigerator after it is sealed in the foam box, and it is more convenient to carry; 3. When the refrigerator in the foam box shakes while moving along with the base, the foam box can be adaptively cushioned during the shaking to prevent the foam box and the refrigerator inside from shaking too heavily. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a partial structural schematic diagram of a main foam board of an EPS foam box for packaging a refrigerator according to the present invention; Figure 2It is a partial structural schematic diagram of a fixing hole of an EPS foam box for packaging a refrigerator according to the present invention; Figure 3 It is a schematic diagram of the local structure of a sleeve of an EPS foam box for packaging a refrigerator according to the present invention; Figure 4 It is a partial structural schematic diagram of a limiting piece of an EPS foam box for packaging a refrigerator according to the present invention; Figure 5 This is a partial structural schematic diagram of a cover plate of an EPS foam box for packaging a refrigerator according to the present invention; Figure 6 This is a schematic diagram of the partial structure of a base of an EPS foam box for packaging a refrigerator according to the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged local structure at point A; Figure 8 This is a partial structural schematic diagram of a connection seat of an EPS foam box for packaging a refrigerator according to the present invention; Fig. 9 It is a partial structural schematic diagram of a triangular seat of an EPS foam box for packaging a refrigerator according to the present invention; Fig.10 It is a schematic diagram of the partial structure of a bidirectional rod of an EPS foam box for packaging a refrigerator according to the present invention; Fig.11 It is a partial structural schematic diagram of a retaining plate of an EPS foam box for packaging a refrigerator according to the present invention; Fig.12 It is a partial structural schematic diagram of a force-bearing plate of an EPS foam box for packaging a refrigerator according to the present invention; Fig.13 This is a schematic diagram of the overall structure of the first part of an EPS foam box for packaging a refrigerator according to the present invention; Fig.14 This is a schematic diagram of the overall structure of the second part of an EPS foam box for packaging a refrigerator according to the present invention; Fig.15 For the present invention Fig.13 Enlarged schematic diagram of the local structure at point B in the middle.

[0015] 1. Main foam board; 2. Extension wall; 3. Auxiliary foam board; 4. Fixing hole; 5. Sleeve; 6. Limiting plate; 7. Bolt; 8. Nut; 9. Support plate; 10. Cover plate; 11. Right-angle protrusion; 12. Rotating seat; 13. Cross bar; 14. Rotating wheel; 15. Annular protrusion; 16. Small hole; 17. Connecting seat; 18. Positioning hole; 19. Lifting plate; 20. Triangular seat; 21. Groove; 22. Two-way rod; 23. Insert rod; 24. Pad; 25. Side plate; 26. Telescopic rod; 27. Retaining plate; 28. Spring; 29. ​​Force plate; 30. Arc plate; 31. Base. DETAILED DESCRIPTION

[0016] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0017] like Figure 1-4 and Figure 13-15 The EPS foam box shown is used to encapsulate a refrigerator, comprising a main foam board 1 and extension walls 2 extending outward along the front and rear edge portions of the main foam board 1, a secondary foam board 3 is buckled on the main foam board 1, and a plurality of fixing holes 4 that penetrate and correspond to each other are evenly arranged on the front and rear sides of each extension wall 2 and the secondary foam board 3, a sleeve 5 is respectively installed in each fixing hole 4, a limiting plate 6 is respectively fixedly connected to the bottom of each sleeve 5, a bolt 7 is inserted into each sleeve 5, and a nut 8 is respectively threadedly connected to the bottom of each bolt 7.

[0018] like Figure 1-4 and Figure 13-15 As shown, each of the sleeves 5 is a pipe made of aluminum alloy.

[0019] like Figure 1-4 and Figure 13-15 As shown, a base 31 is provided at the bottom of the main foam board 1, and a right-angle protrusion 11 is fixedly connected to the four corners of the middle of the upper surface of the base 31, and the inner surfaces of the four right-angle protrusions 11 are in contact with the four corners of the bottom of the main foam board 1 respectively.

[0020] like Figure 1-7 and Figure 13-15 As shown, a support plate 9 is fixedly connected to each of the four corners of the base 31 , the tops of the four support plates 9 are fixedly connected to the four corners of the cover plate 10 , and a handle is fixedly connected to the middle of the upper side of the cover plate 10 .

[0021] like Figure 1-7 and Figure 13-15As shown, a swivel seat 12 is fixedly connected to each of the four corners of the bottom of the base 31, and a ring protrusion 15 is fixedly connected to the adjacent side of each swivel seat 12. The two swivel seats 12 on the right are rotatably connected to the front and rear sides of a cross bar 13, and the two swivel seats 12 on the left are rotatably connected to the front and rear sides of another cross bar 13, and each cross bar 13 is rotatably connected to a rotating wheel 14 on the front and rear sides.

[0022] like Figure 1-9 and Figure 13-15 As shown, each of the annular protrusions 15 is fixedly connected to a connecting seat 17 on its upper side, each of the connecting seats 17 is slidably connected to a lifting plate 19, and each of the lifting plates 19 is fixedly connected to a triangular seat 20 mirror-set to each other on its left and right sides, and each triangular seat 20 has a plurality of grooves 21 evenly arranged on its lower surface.

[0023] like Figure 1-10 and Figure 13-15 As shown, each of the rotating seat 12 is provided with a small hole 16 on the upper and lower sides, and each of the connecting seat 17 is provided with a positioning hole 18 on the upper and lower sides. Every two small holes 16 and every two positioning holes 18 are arranged in a one-to-one correspondence. An insertion rod 23 is respectively provided in the two small holes 16 on the front side and on the same horizontal plane, and an insertion rod 23 is respectively provided in the two small holes 16 on the rear side and on any one of the same horizontal planes. The two insertion rods 23 on the rear side are respectively fixedly connected to the left and right sides of a two-way rod 22, and the two insertion rods 23 on the front side are respectively fixedly connected to the left and right sides of another two-way rod 22.

[0024] like Figure 1-11 and Figure 13-15 As shown, a plurality of retaining plates 27 are evenly fixedly connected between the two support plates 9 on the left side, and a plurality of fixed ends of telescopic rods 26 are evenly provided on each retaining plate 27. The movable ends of the plurality of telescopic rods 26 on a retaining plate 27 are evenly fixedly connected to the middle part of a pad 24. A side plate 25 is respectively fixedly connected to the front and rear sides of each pad 24. Each pad 24 is evenly buckled on the left side surface of the main foam plate 1 through the side plates 25 on the front and rear sides thereof. A spring 28 is respectively sleeved on the movable end of each telescopic rod 26. Each spring 28 is respectively arranged between the corresponding pad 24 and the retaining plate 27, and each spring 28 is a compression spring.

[0025] like Figure 1-Figure 15 As shown, a plurality of force-bearing plates 29 are evenly and fixedly connected between the two support plates 9 at the front and rear sides, and a smooth-surfaced arc-shaped plate 30 is fixedly connected to the outer side of each force-bearing plate 29 .

[0026] In order to improve the sealing stability of the EPS foam box when sealing the refrigerator and prevent the EPS foam boxes from detaching from each other, when using, the refrigerator is placed in the main foam board 1, and the auxiliary foam board 3 and the main foam board 1 form a foam box to buckle the refrigerator therein. Further, a plurality of correspondingly arranged fixing holes 4 are respectively processed on the extension walls 2 of the front and rear edge parts of the main foam board 1 and the front and rear edge parts of the auxiliary foam board 3, and then a plurality of sleeves 5 are sequentially inserted into the fixing holes 4 to fix and limit the main foam board 1 and the auxiliary foam board 3, and the refrigerator is fixed and sealed therein. Further, a plurality of limiting pieces 6 are inserted into the bottom of each sleeve 5 to prevent the sleeve 5 from falling off. On this basis, a bolt 7 is inserted into each sleeve 5, and a plurality of mutually matching nuts 8 are used to fix and limit each limiting piece 6 and the sleeve 5 in the corresponding fixing hole 4, which further improves the sealing stability of the EPS foam box when sealing the refrigerator, prevents the EPS foam box from detaching, and allows for free disassembly, so as to prevent the refrigerator from detaching from the foam box due to bumps during long-distance freight. In order to improve the stability of the refrigerator after being sealed in the foam box and to make it more convenient to carry, the lifting plate 19 on each connecting seat 17 is moved upward respectively, and the triangular seats 20 on the left and right sides of the lifting plate 19 are synchronously driven to rise, and then the insertion rod 23 on the two-way rod 22 is inserted into the small hole 16 and the positioning hole 18 on the upper side to fix the lifting plate 19, and the right-angled protrusions 11 at the four corners of the middle of the base 31 are used to limit the four corners of the bottom of the foam box to prevent the foam box and the refrigerator inside it from shaking excessively, and then the base 31 is manually pushed to utilize its The rotating wheel 14 at the bottom moves the refrigerator on the base 31 to the corresponding transport position, then removes the plug rod 23 on each bidirectional rod 22, and then moves the lifting plate 19 on each connecting seat 17 downward, so that the triangular seats 20 on both sides of each lifting plate 19 contact the contact surface, and the grooves 21 on the lower surface of each triangular seat 20 are used to increase the friction between the triangular seats 20 and the contact surface, so that the base 31 is fixed and limited at a position where the refrigerator is required to be placed still, so as to improve the stability of the refrigerator after being sealed in the foam box, and make it more convenient to carry; When the refrigerator located in the foam box shakes while moving with the base 31, the foam box can be adaptively cushioned during the shaking to prevent the foam box and the refrigerator inside it from shaking too heavily. First, each pad 24 and the side panels 25 located on the front and rear sides of the pad 24 are used to limit the left surface of the main foam board 1. When the foam box formed by the main foam board 1 and the auxiliary foam board 3 shakes, the pad 24 compresses and stretches the spring 28 on the movable end of each telescopic rod 26 to buffer the force generated by the shaking to prevent the foam box and the refrigerator inside it from shaking too heavily and affecting the internal structure of the refrigerator. When multiple bases 31 are placed in the same row, the arc plate 30 on each force-bearing plate 29 can be used to limit the distance to prevent the refrigerators in the multiple bases 31 from colliding.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An EPS foam box for packaging a refrigerator, comprising a main foam board (1) and an extension wall (2) extending outward along the front and rear edge portions of the main foam board (1), characterized in that: The main foam plate (1) is buckled with the auxiliary foam plate (3); each extension wall (2) and the front and rear sides of the auxiliary foam plate (3) are evenly provided with a plurality of fixing holes (4) penetrating and corresponding to each other; each fixing hole (4) is respectively installed with a sleeve (5); the bottom of each sleeve (5) is respectively fixedly connected with a limiting plate (6); each sleeve (5) is respectively inserted with a bolt (7); the bottom of each bolt (7) is respectively threadedly connected with a nut (8).

2. The EPS foam box for packaging a refrigerator according to claim 1, characterized in that: Each of the sleeves (5) is a pipe made of aluminum alloy.

3. The EPS foam box for packaging a refrigerator according to claim 2, characterized in that: A base (31) is provided at the bottom of the main foam board (1), and a right-angled protrusion (11) is fixedly connected to each of the four corners in the middle of the upper surface of the base (31), and the inner surfaces of the four right-angled protrusions (11) are in contact with the four corners of the bottom of the main foam board (1).

4. The EPS foam box for packaging a refrigerator according to claim 3, characterized in that: A support plate (9) is fixedly connected to each of the four corners of the base (31); the tops of the four support plates (9) are fixedly connected to the four corners of the cover plate (10); and a handle is fixedly connected to the middle of the upper side of the cover plate (10).

5. The EPS foam box for packaging a refrigerator according to claim 4, characterized in that: A rotating seat (12) is fixedly connected to each of the four corners of the bottom of the base (31); an adjacent side of each rotating seat (12) is fixedly connected to a protruding ring (15); the two rotating seats (12) on the right are rotatably connected to the front and rear sides of a cross bar (13); the two rotating seats (12) on the left are rotatably connected to the front and rear sides of another cross bar (13); and the front and rear sides of each cross bar (13) are rotatably connected to a rotating wheel (14).

6. The EPS foam box for packaging a refrigerator according to claim 5, characterized in that: A connection seat (17) is fixedly connected to the upper side of each annular protrusion (15), a lifting plate (19) is slidably connected to each connection seat (17), and a triangular seat (20) arranged in a mirror image with each other is fixedly connected to the left and right sides of each lifting plate (19), and a plurality of grooves (21) are evenly arranged on the lower surface of each triangular seat (20).

7. The EPS foam box for packaging a refrigerator according to claim 6, characterized in that: Each of the rotating seats (12) is provided with a small hole (16) on the upper and lower sides, respectively; each of the connecting seats (17) is provided with a positioning hole (18) on the upper and lower sides, respectively; every two small holes (16) and every two positioning holes (18) are arranged in a one-to-one correspondence; each of the two small holes (16) on the front side and on the same horizontal plane is provided with an insertion rod (23); each of the two small holes (16) on the rear side and on any one of the same horizontal planes is provided with an insertion rod (23); the two insertion rods (23) on the rear side are respectively fixedly connected to the left and right sides of a bidirectional rod (22); and the two insertion rods (23) on the front side are respectively fixedly connected to the left and right sides of another bidirectional rod (22).

8. The EPS foam box for packaging a refrigerator according to claim 3, characterized in that: A plurality of retaining plates (27) are evenly fixedly connected between the two support plates (9) on the left side, and each retaining plate (27) is evenly provided with fixed ends of a plurality of telescopic rods (26), and the movable ends of the plurality of telescopic rods (26) on a retaining plate (27) are evenly fixedly connected to the middle of a pad (24), and each pad (24) is respectively fixedly connected to a side plate (25) on the front and rear sides, and each pad (24) is evenly buckled on the left side surface of the main foam plate (1) through the side plates (25) on the front and rear sides thereof, and a spring (28) is respectively sleeved on the movable end of each telescopic rod (26), and each spring (28) is respectively arranged between the corresponding pad (24) and the retaining plate (27), and each spring (28) is a compression spring.

9. The EPS foam box for packaging a refrigerator according to claim 8, characterized in that: A plurality of force-bearing plates (29) are evenly and fixedly connected between the two support plates (9) located at the front and rear sides, and a curved plate (30) with a smooth surface is fixedly connected to the outer side of each force-bearing plate (29).

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