Heat preservation box

Abstract

The utility model relates to a heat preservation box, which belongs to the technical field of box bodies and comprises a box body and a box cover, the box cover is rotatably arranged on the box body, the box body comprises a composite glass fiber reinforced plastic plate, a box body frame, a foaming layer and an inner container, the inner container is fixed in the box body frame, and the composite glass fiber reinforced plastic plate is located on the outer side of the box body frame through the box body frame. The foaming layer is filled in the gap between the composite glass reinforced plastic plate and the inner container, the composite glass reinforced plastic plate, the box body frame and the inner container are connected together through the foaming layer, and the composite glass reinforced plastic plate heat preservation box is reasonable in structure, good in heat preservation effect and capable of achieving good sealing performance and heat insulation performance without additional rivet or bolt connection.

Description

Technical Field

[0001] This utility model belongs to the field of box technology, and specifically refers to an insulated box. Background Technology

[0002] Insulated boxes, as a common and frequently used type of insulation product, can serve as a good supplement to refrigerated trucks in the cold chain logistics field, solving the needs of less-than-truckload (LTL) cold transport. Currently, there are many types of insulated boxes on the market, with wide applications and large demand.

[0003] Most insulated boxes on the market use vacuum insulation panels for their outer panels. Vacuum insulation panels are a new type of insulation material with excellent thermal insulation properties. Currently, the most common application method is to combine vacuum insulation panels with pre-made polyurethane composite sandwich insulation panels, and then splice the composite panels into a box. The advantages of this process are its simplicity, ability to customize any size, and low manufacturing cost. However, it also has many disadvantages. First, the overall integrity of the box is not good, and the splicing gaps are difficult to handle. Because the panels are mostly bonded together, there are certain defects in environmental protection and load-bearing capacity. Second, the sealing performance is not good. In addition to the structural panel gaps, the structural limitations of the box lid and the box body also make it difficult to ensure a good seal, making it difficult to give full play to the advantages of vacuum insulation panels. Utility Model Content

[0004] The purpose of this invention is to provide a thermal insulation box with a reasonable structure and good heat preservation effect, which can achieve good sealing and heat insulation without the need for additional rivet or bolt connection.

[0005] The purpose of this utility model is achieved as follows:

[0006] An insulated box includes a box body and a box lid. The box lid is rotatably mounted on the box body. The box body includes a composite fiberglass plate, a box frame, a foam layer, and an inner liner. The inner liner is fixed inside the box frame. The composite fiberglass plate is located outside the box frame through the box frame, and the foam layer fills the gap between the composite fiberglass plate and the inner liner. The composite fiberglass plate, the box frame, and the inner liner are connected together through the foam layer.

[0007] In the aforementioned insulated box, the box frame includes a door frame joist, a door frame joist connector, a joist, and a joist connector. The door frame joist and the door frame joist connector are connected to each other to form a door frame. The joist has two connecting grooves for connecting composite fiberglass plates, which are perpendicular to each other. The middle end of the joist is provided with a retaining strip, which is located between the two connecting grooves. The joist connector has a retaining groove for easy insertion of the retaining strip. The joist connector is connected to the joist through the cooperation between the retaining strip and the retaining groove. The door frame joist connector has a second retaining groove for easy insertion of the retaining strip.

[0008] In the aforementioned insulated box, the locking strip has a T-shaped structure.

[0009] In the aforementioned insulated box, the height H of the inner wall of the connecting groove is higher than the height h of the outer wall.

[0010] In the aforementioned insulated box, an external connector is provided on the rib connector. The external connector extends out of the rib connector and is connected to the rib. The slot is located on the external connector.

[0011] In the aforementioned insulated box, two symmetrically arranged L-shaped card plates extend inward from both sides of the card slot one, and the card strip contacts the two L-shaped card plates.

[0012] In the aforementioned insulated box, the door frame joists are provided with a second connecting groove for connecting the composite fiberglass plate and a third connecting groove for connecting the inner liner, and the second connecting groove and the third connecting groove are arranged in parallel.

[0013] In the aforementioned insulated box, a guide ramp is provided on the inner wall of the connecting groove three.

[0014] In the aforementioned insulated box, the inner liner is a vacuum-formed structure, a stainless steel plate splicing structure, or an aluminum plate splicing structure.

[0015] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0016] This utility model uses door frame ribs, door frame rib connectors, and ribs and rib connectors to connect with each other to form a box frame. The composite fiberglass plate and inner liner are connected to the box frame. After connection, foaming agent is filled to make it a complete insulated box. The expanded foaming agent will wrap the T-shaped clips and further fix the box frame to the composite fiberglass plate and container shell. No additional rivets or bolts are needed for reinforcement. It has good overall consistency and good sealing performance. Attached Figure Description

[0017] Figure 1 This is a simplified structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional view of the present invention.

[0019] Figure 3 This is a structural schematic diagram of the box frame of this utility model.

[0020] Figure 4 This is an enlarged view of section A of this utility model.

[0021] Figure 5 This is a structural schematic diagram of the door frame joist of this utility model.

[0022] Figure 6This is a structural schematic diagram of the rib connector of this utility model.

[0023] Figure 7 This is a structural schematic diagram of the door frame joists and door frame joist connectors of this utility model.

[0024] 1-Box body; 2-Box lid; 11-Composite fiberglass plate; 12-Box frame; 14-Inner liner; 121-Door frame joist; 122-Door frame joist connector; 123-Joist; 124-Joist connector; 1211-Connecting groove two; 1212-Connecting groove three; 1213-Guide ramp; 1231-Connecting groove one; 1232-Clamping strip; 1241-Clamping groove one; 1242-Clamping groove two; 1243-T-shaped clip; 1244-External connector. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0026] like Figures 1-7As shown: An insulated box includes a box body 1 and a box lid 2. The box lid 2 is rotatably mounted on the box body 1. The box body 1 includes a composite fiberglass plate 11, a box frame 12, a foam layer, and an inner liner 14. The inner liner 14 is fixed inside the box frame 12. The composite fiberglass plate 11 is located outside the box frame 12 via the box frame 12, and the foam layer fills the gap between the composite fiberglass plate 11 and the inner liner 14. The composite fiberglass plate 11, the box frame 12, and the inner liner 14 are connected by the foam layer. The box frame 12, when connected together, includes a door frame joist 121, a door frame joist connector 122, a joist 123, and a joist connector 124. The door frame joist 121 and the door frame joist connector 122 are connected to each other to form a door frame. The joist 123 is provided with two connecting grooves 1231 for connecting composite fiberglass plates. The two connecting grooves 1231 are arranged perpendicularly to each other. A retaining strip 1232 is provided at the middle end of each joist 123. The retaining strip 1232 is located at the two connecting grooves 1231. Between 1231, the connecting member 124 of the rib rod is provided with a slot 1241 for easy insertion of the locking strip 1232. The connecting member 124 of the rib rod is connected to the rib rod 123 through the cooperation between the locking strip 1232 and the slot 1241. The connecting member 122 of the door frame rib rod is provided with a slot 242 for easy insertion of the locking strip 1232. This utility model forms a box frame by interconnecting the door frame rib rod, the door frame rib rod connecting member, the rib rod and the rib rod connecting member. The composite fiberglass plate and the inner liner are connected to the box body. The frames are connected, and after being connected, they are filled with foam to form a complete insulated box. The expanded foam will wrap the T-shaped clips and further fix the box frame to the composite fiberglass plate and the container shell. No additional rivets or bolts are needed for reinforcement. The overall consistency is good and the sealing is good. The composite fiberglass material has good resistance to deformation, impact resistance, and is not easy to break. It has high strength and good thermal insulation performance. It is lightweight, and the foam layer is made of cyclopentane.

[0027] In the aforementioned insulated box, the locking strip 1232 has a T-shaped structure. Specifically, this is to ensure a stable connection between the connecting rod and the rod, thus preventing it from coming loose.

[0028] In the aforementioned insulation box, the height H of the inner wall of the connecting groove 1231 is higher than the height h of the outer wall. Specifically, this is to facilitate the installation of the composite fiberglass plate and also to improve the strength of the rib.

[0029] In the aforementioned insulation box, an external connector 1244 is provided on the connecting rod 124. The external connector 1244 extends out of the connecting rod 124 and is connected to the connecting rod 123. The first slot 1241 is located on the external connector 1244. Two symmetrically arranged L-shaped plates 1243 extend inward from both sides of the first slot 1241. The locking strip 1232 contacts the two L-shaped plates 1243. The L-shaped plates are for connecting with the foaming agent, playing a fixing role and improving connection stability. The L-shaped plates are bent outward and are used in conjunction with the locking strip. Firstly, to prevent the locking strip from detaching, and secondly, to connect with the foaming agent for further fixation.

[0030] In the aforementioned insulated box, the door frame rib 121 is provided with a second connecting groove 1211 for connecting the composite fiberglass plate 11 and a third connecting groove 1212 for connecting the inner liner. The second connecting groove 1211 and the third connecting groove 1212 are arranged in parallel. Specifically, this is to facilitate the installation of the outer panel of the insulated box and the inner liner of the insulated box.

[0031] In the aforementioned insulated box, a guide plate 1213 is provided on the inner side wall of the connecting groove 3 1212. Specifically, this is to facilitate the insertion of the container shell into the connecting groove 3, and the guide plate is to cooperate with the foaming layer to play a fixing role.

[0032] In the aforementioned insulated box, the inner liner 14 is a vacuum-formed structure, a stainless steel plate splicing structure, or an aluminum plate splicing structure.

[0033] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. An insulated box, comprising a box body (1) and a box lid (2), characterized in that: The lid (2) is rotatably mounted on the box body (1). The box body (1) includes a composite fiberglass plate (11), a box frame (12), a foam layer, and an inner liner (14). The inner liner (14) is fixed inside the box frame (12). The composite fiberglass plate (11) is located outside the box frame (12) through the box frame (12), and the foam layer fills the gap between the composite fiberglass plate (11) and the inner liner (14). The composite fiberglass plate (11), the box frame (12), and the inner liner (14) are connected together through the foam layer.

2. The insulated box according to claim 1, characterized in that: The box frame (12) includes a door frame joist (121), a door frame joist connector (122), a joist (123), and a joist connector (124). The joist (123) has two connecting grooves (1231) for connecting composite fiberglass plates, which are perpendicular to each other. The joist (123) also has retaining strips (1232) at its midpoint. Located between two connecting slots (1231), the rib connecting member (124) is provided with a slot (1241) for easy insertion of the clip (1232). The rib connecting member (124) is connected to the rib (123) through the cooperation between the clip (1232) and the slot (1241). The door frame rib connecting member (122) is provided with a slot (1242) for easy insertion of the clip (1232).

3. The insulated box according to claim 2, characterized in that: The card strip (1232) has a T-shaped structure.

4. The insulated box according to claim 3, characterized in that: The height H of the inner wall of the connecting groove (1231) is higher than the height h of the outer wall.

5. The insulated box according to claim 2, 3, or 4, characterized in that: An external connector (1244) is provided on the joist connector (1244), the external connector (1244) extends out of the joist connector (124) and is connected to the joist (123), and the slot one (1241) is located on the external connector (1244).

6. The insulated box according to claim 5, characterized in that: The card slot (1241) has two symmetrically arranged L-shaped card plates (1243) extending inward on both sides, and the card strip (1232) contacts the two L-shaped card plates (1243).

7. The insulated box according to claim 6, characterized in that: The door frame joist (121) is provided with a second connecting groove (1211) for connecting the composite fiberglass plate (11) and a third connecting groove (1212) for connecting the inner liner. The second connecting groove (1211) and the third connecting groove (1212) are arranged in parallel.

8. The insulated box according to claim 7, characterized in that: A guide plate (1213) is provided on the inner wall of the connecting groove three (1212).

9. The insulated box according to any one of claims 1, 2, 3, 4, 6, 7, or 8, characterized in that: The inner liner (14) is a vacuum-formed structure, a stainless steel plate splicing structure, or an aluminum plate splicing structure.

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