Heat preservation box

Abstract

The utility model relates to the field of heat preservation boxes, and discloses a heat preservation box which comprises a heat preservation box body and a heat preservation box cover, the heat preservation box body comprises an outer box and an inner box arranged in the outer box, and a first sealing heat preservation structure is arranged between the inner box and the outer box. The first sealing heat preservation structure comprises a sealing locking structure which is arranged between the inner box and the outer box and used for achieving sealing locking of the inner box and the outer box, a sealed cavity is formed between the inner box and the outer box after the inner box and the outer box are sealed and locked, and the cavity is filled with a heat preservation bonding layer formed after polystyrene foam is hardened. A cavity is formed between the inner box and the outer box, a glue injection opening which is communicated with the cavity and used for injecting flowing polystyrene foam is formed in the inner box or the outer box, a plug for sealing the glue injection opening is arranged on the glue injection opening, double-layer heat preservation is formed by arranging the inner box and the outer box, and then the sealed cavity formed between the inner box and the outer box is filled with the polystyrene foam. The heat preservation bonding layer formed after the polystyrene foam is cured further improves the heat preservation performance of the heat preservation box, and the sealing locking structure and the sealing plug can prevent the polystyrene foam from overflowing.

Description

Technical Field

[0001] The utility model relates to the field of insulation boxes, and particularly to an insulation box. Background Art

[0002] The Chinese patent application text with the application number 201511030419.2 discloses an insulation box, which includes a box body and a box cover that cooperates with the box body; the box body includes a cavity for accommodating items, and the cavity includes a pair of mutually parallel first side surfaces, a pair of second side surfaces that are perpendicular to and parallel to the first side surfaces, and a bottom surface. A groove formed by concave and convex planes is correspondingly provided on a pair of first side surfaces, and the groove extends from top to bottom for clamping and placing side ice boxes.

[0003] This insulation box is provided with a groove in the box body and an ice box in the groove. However, the above solution can only reduce the temperature inside the box by placing an ice box in the box body, and the heat preservation performance of the box body itself is poor. Summary of the Utility Model

[0004] In view of the shortcoming of poor heat preservation performance of the box body in the prior art, the utility model provides an insulation box.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] An insulation box includes an insulation box body and an insulation box cover. The insulation box body includes an outer box and an inner box placed inside the outer box. A first sealed heat preservation structure is provided between the inner box and the outer box. The first sealed heat preservation structure includes a sealing and locking structure for realizing the sealing and locking of the two between the inner box and the outer box. After the inner box and the outer box are sealed and locked, a sealed chamber is formed between them. The chamber is filled with a heat preservation bonding layer formed by curing foaming glue. A glue injection port communicating with the chamber and used for injecting flowing foaming glue is provided on the inner box or the outer box, and a plug for sealing it is provided on the glue injection port.

[0007] Adopting the above solution, the insulation box body includes an inner box and an outer box, and the double-layer setting improves the heat preservation performance. The sealing and locking structure makes the inner box and the outer box be sealed and connected and forms a sealed chamber between them. By providing a glue injection port, the chamber is communicated with the outside, and the foaming glue enters the chamber through the glue injection port, fills and foams and cures to form a heat preservation bonding layer. The heat preservation bonding layer improves the heat preservation performance and makes the inner box and the outer box be bonded more firmly. The cooperation of the sealing and locking structure and the plug ensures that the foaming glue is filled in the chamber and will not overflow during foaming.

[0008] Preferably, the sealing and locking structure includes an annular folding edge that turns outwards from the open end of the inner box, a sealing ring that turns downwards on the annular folding edge and is hermetically attached to the outer ring wall of the outer box, and a clamping structure provided between the annular folding edge and the outer box to limit the relative movement of the outer box and the sealing ring.

[0009] With the above - mentioned solution, the open end of the outer box is inserted between the inner wall of the sealing ring and the outer wall of the inner box, and the outer wall of the outer box is sealingly fitted with the inner wall of the sealing ring, so that a sealed chamber for the foaming agent to flow into is formed among the outer box, the inner box and the annular folding edge. However, the expansion force generated during the foaming process of the foaming agent will cause the inner box and the outer box to move away from each other, resulting in the relative sliding of the outer box and the sealing ring and then separation, and the foaming agent overflows. Therefore, a clamping structure is provided to limit the relative movement between the outer box and the sealing ring.

[0010] Preferably, a clamping section that is sealingly fitted with the inner wall of the outer box protrudes from the bottom of the annular folding edge.

[0011] With the above - mentioned solution, the setting of the clamping section increases the area of sealing fit on the outer box. That is, after the open end of the outer box is inserted between the clamping section and the sealing ring, the inner wall of the outer box is sealingly fitted with the side of the clamping section close to the sealing ring, the outer wall of the outer box is sealingly fitted with the side of the sealing ring close to the clamping section, and the open end of the outer box is sealingly fitted with the bottom of the annular folding edge, further increasing the sealing performance of the chamber.

[0012] Preferably, a guiding inclined surface for facilitating the sealed insertion of the open end of the outer box between the clamping section and the sealing ring is provided on the side of the clamping section and / or the sealing ring away from the annular folding edge.

[0013] With the above - mentioned solution, since the open end of the outer box needs to be sealingly fitted with both of them respectively after being inserted between the clamping section and the sealing ring, this will lead to too high production precision and assembly difficulty. Therefore, a guiding inclined surface is provided. During assembly, as long as the open end of the outer box abuts against the guiding inclined surface, after an external force is applied, the open end of the outer box can be sealingly inserted between the clamping section and the sealing ring through extrusion and sliding cooperation with the guiding inclined surface.

[0014] Preferably, the clamping structure includes a fitting section that is turned inwards from the open end of the outer box and can be sealingly fitted with the bottom of the annular folding edge, a through - groove penetrating through the fitting section, and a buckle protruding from the bottom of the annular folding edge and used to limit the separation of the annular folding edge and the fitting section after passing through the through - groove.

[0015] With the above - mentioned solution, the fitting section is sealingly fitted with the bottom of the annular folding edge, further increasing the area of sealing fit on the outer box and ensuring the sealing performance of the chamber. When the buckle passes through the through - groove, it undergoes extrusion deformation and returns to its initial state after passing through the through - groove to clamp and limit the fitting section on the annular folding edge, restricting the relative movement between the fitting section and the annular folding edge and thus restricting the relative movement between the outer box and the sealing ring.

[0016] Preferably, the inner box, the annular folding edge, the sealing ring, the clamping section and the buckle are made of plastic, and the outer box and the fitting section are made of metal.

[0017] With the above solution, the outer box is made of metal material, making the outer box strong and not easily damaged after being knocked. The inner box uses plastic instead of metal material. First, because plastic has a poorer heat conduction performance than metal material, it delays heat exchange and increases the heat preservation performance. Second, plastic is lighter than metal material, reducing the weight of the box body. Third, the cost of plastic is lower. The annular folding edge, the sealing ring, and the clamping section are made of plastic. When the open end of the outer box is inserted between the sealing ring and the clamping section, the slight deformation extrusion of the plastic can make the sealing performance between the sealing ring, the clamping section, and the outer box more excellent. The buckle is made of plastic to ensure that it can deform when passing through the through groove and return to its original state after passing through the through groove, and is in sealed fit with the through groove.

[0018] Preferably, the insulation box cover includes an inner cover close to the insulation box body and an outer cover away from the insulation box body, and a second sealed heat preservation structure is arranged between the inner cover and the outer cover.

[0019] With the above solution, the insulation box cover includes an inner cover and an outer cover, and the double-layer setting improves the heat preservation performance of the insulation box cover. The second sealed heat preservation structure further improves the heat preservation performance of the insulation box cover.

[0020] Preferably, a sealing ring that is in sealed fit with the insulation box body when the insulation box cover is closed is arranged on the insulation box cover.

[0021] With the above solution, after the insulation box cover and the insulation box body are closed, a sealed space is formed between the inner box and the inner cover.

[0022] Due to the adoption of the above technical solutions, the present utility model has remarkable technical effects:

[0023] 1. The inner box is made of plastic and the outer box is made of metal material, which improves the heat preservation performance of the insulation box while ensuring the collision strength of the insulation box;

[0024] 2. After the inner box and the outer box are sealed and connected through the sealing and locking structure, a sealed chamber for the foaming agent to flow in is formed. The sealing and locking structure and the plugging can ensure that the foaming agent will not overflow from the chamber during the process of flowing in and foaming and curing. After the foaming agent is cured, a heat preservation bonding layer is formed, further improving the heat preservation performance of the insulation box. Description of the Drawings

[0025] Figure 1 is a schematic diagram of an insulation box in the embodiment;

[0026] Figure 2 is the disassembly of an insulation box in the embodiment Figure 1 ;

[0027] Figure 3 is Figure 2 the enlarged view of A in

[0028] Figure 4The disassembly of an incubator in the embodiment Figure 2 ;

[0029] Figure 5 is Figure 4 The enlarged view at position B in

[0030] Figure 6 The top view of an incubator in the embodiment

[0031] Figure 7 is Figure 6 The cross-sectional view taken along line C-C in

[0032] Figure 8 is Figure 7 The enlarged view at position E in

[0033] Figure 9 is Figure 6 The cross-sectional view taken along line D-D in

[0034] Figure 10 is Figure 9 The enlarged view at position F in

[0035] Figure 11 The partial enlarged view of an incubator filled with foaming glue in the embodiment

[0036] The names of the parts referred to by the numerical labels in the above figures are as follows: 1, incubator body; 101, inner box; 102, outer box; 2, incubator cover; 201, inner cover; 202, outer cover; 3, chamber; 4, thermal insulation bonding layer; 5, glue injection port; 6, plug; 7, annular folding edge; 8, sealing ring; 9, clamping section; 10, slot; 11, guiding inclined surface; 12, fitting section; 13, through groove; 14, buckle; 15, sealing ring Detailed implementation manners

[0037] The present utility model will be further described in detail below in conjunction with the drawings and embodiments

[0038] Embodiment

[0039] An incubator, referring to Figures 1 to 11 , includes an incubator body 1 and an incubator cover 2 that can open or close the incubator body 1. The incubator cover 2 is hinged to the incubator body 1

[0040] The incubator body 1 includes an outer box 102 with an upward opening. An inner box 101 with an upward opening is arranged inside the outer box 102. A first sealed thermal insulation structure is arranged between the inner box 101 and the outer box 102

[0041] The first sealing and heat-insulating structure includes a sealing and locking structure arranged between the inner box 101 and the outer box 102. The inner box 101 and the outer box 102 are hermetically connected under the action of the sealing and locking structure, and a sealed chamber 3 is formed between the inner box 101 and the outer box 102 after they are hermetically connected. A glue injection port 5 communicating the chamber 3 with the outside is penetrated through the bottom of the outer box 102. The foaming glue enters the chamber 3 through the glue injection port 5 and forms a heat-insulating bonding layer 4 after foaming and curing. The heat-insulating bonding layer 4 can not only be used for heat insulation but also bond the inner box 101 and the outer box 102, increasing the connection strength between the inner box 101 and the outer box 102. A plug 6 capable of sealing and closing the glue injection port 5 is arranged on the glue injection port 5. The cooperation between the plug 6 and the sealing and locking structure enables the foaming glue not to overflow from the chamber 3 during the process of flowing into the chamber 3 and foaming and curing. The outer wall of the inner box 101 and the inner wall of the outer box 102 can be subjected to a roughing process to further increase the bonding strength with the heat-insulating bonding layer 4.

[0042] The sealing and locking structure includes an annular flange 7 horizontally folded outward from the open end of the inner box 101. A sealing ring 8 is formed after the side of the annular flange 7 away from the inner box 101 is folded downward. The inner ring wall of the sealing ring 8 is hermetically attached to the outer ring wall of the outer box 102. A clamping section 9 protrudes downward between the bottom of the annular flange 7 and the inner box 101. The side of the clamping section 9 close to the sealing ring 8 is hermetically attached to the inner wall of the outer box 102. That is, a slot 10 for the open end of the outer box 102 to be hermetically inserted is formed between the clamping section 9 and the sealing ring 8. After the open end of the outer box 102 is inserted into the slot 10, the inner wall of the outer box 102 is hermetically attached to the side of the clamping section 9 close to the sealing ring 8, the outer wall of the outer box 102 is hermetically attached to the side of the sealing ring 8 close to the clamping section 9, and the open end of the outer box 102 is hermetically attached to the bottom of the annular flange 7.

[0043] An introduction inclined surface 11 is arranged on the side of the clamping section 9 away from the annular flange 7. The introduction inclined surface 11 is gradually inclined upward from the side away from the sealing ring 8 to the side close to the sealing ring 8. The open end of the outer box 102 abuts against the introduction inclined surface 11. After an external force is applied, the open end of the outer box 102 can be inserted into the slot 10 through extrusion and sliding cooperation with the introduction inclined surface 11 to achieve hermetic plugging with the slot 10.

[0044] However, the connection strength of the hermetic plugging between the open end of the outer box 102 and the slot 10 is relatively small, and they may be separated during the foaming of the foaming glue. Therefore, a clamping structure is provided.

[0045] The clamping structure includes a fitting section 12 which is horizontally foldable inwardly at the open end of the outer box 102. After the fitting section 12 is folded inwardly, its upper end face can be hermetically fitted with the bottom of the annular flange 7 when the open end of the outer box 102 is hermetically inserted into the slot 10. A through groove 13 is provided through the fitting section 12, and a buckle 14 protrudes from the bottom of the annular flange 7. When the fitting section 12 and the annular flange 7 are hermetically fitted, the buckle 14 passes through the through groove 13 and then clamps and positions the fitting section 12 on the annular flange 7, that is, the annular flange 7 and the fitting section 12 are restricted from separating.

[0046] At least one set of the clamping structure and the clamping section 9 are circumferentially arranged at intervals around the inner box 101. This ensures the connection strength and sealing performance between the inner box 101 and the outer box 102. And in this embodiment, the clamping section 9 is located between adjacent fitting sections 12.

[0047] Mounting feet that hermetically penetrate the outer box 102 are provided at the bottom of the inner box 101. A cushion block is sleeved on the mounting feet outside the outer box 102, and the cushion block is fixed to the mounting feet by screw threads.

[0048] The insulation box cover 2 includes an inner cover 201 close to the insulation box body 1 and an outer cover 202 far from the insulation box body 1. A second sealed insulation structure is provided between the inner cover 201 and the outer cover 202. The second sealed insulation structure is the same as the first sealed insulation structure, so it will not be repeated here, and it will not be repeatedly marked in the figure. A sealing ring 15 is provided on the inner cover 201. When the insulation box body 1 and the insulation box cover 2 are closed, the sealing ring 15 is in sealed contact with the inner box 101, forming a sealed environment between the inner cover 201 and the inner box 101.

[0049] The inner box 101, the inner cover 201, the annular flange 7, the sealing ring 8, the clamping section 9 and the buckle 14 are made of plastic, and the outer box 102, the outer cover 202 and the fitting section 12 are made of metal. In this embodiment, the plastic is PP polypropylene, the metal material is stainless steel, and the foaming agent is PU foaming agent.

[0050] During assembly, the outer box 102 and the inner box 101 approach each other until the open end of the outer box 102 is hermetically inserted into the slot 10, and the fitting section 12 is hermetically fitted with the bottom of the annular flange 7. At this time, the buckle 14 passes through the through groove 13 to limit the fitting section 12 on the annular flange 7, preventing the inner box 101 and the outer box 102 from moving away from each other. A sealed chamber 3 is formed between the inner box 101 and the outer box 102. That is, the part of the outer box 102 provided with the fitting section 12 is sealed by the hermetic fitting between the fitting section 12 and the annular flange 7; the inner wall of the outer box 102 without the fitting section 12 is hermetically fitted with the clamping section 9 for sealing; the upper end face of the outer box 102 without the fitting section 12 is hermetically fitted with the annular flange 7 for sealing; the entire outer ring wall of the outer box 102 is hermetically fitted with the sealing ring 8 for sealing, thus ensuring the sealing performance of the chamber 3.

[0051] Open the plug 6 on the glue injection port 5, and the foaming glue flows into the chamber 3 through the glue injection port 5. After the glue injection is completed, seal the glue injection port 5 with the plug 6 to restore the sealed state of the chamber 3. The foaming glue foams and cures in the sealed chamber 3 to form a heat-insulating bonding layer.

[0052] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. An insulation box, comprising an insulation box body (1) and an insulation box cover (2), characterized in that: The heat-insulating box body (1) comprises an outer box (102) and an inner box (101) built into the outer box (102); a first sealing heat-insulating structure is arranged between the inner box (101) and the outer box (102); the first sealing heat-insulating structure comprises a sealing locking structure arranged between the inner box (101) and the outer box (102) for achieving sealing and locking between the two; after the inner box (101) and the outer box (102) are sealed and locked, a sealed chamber (3) is formed between the two; the chamber (3) is filled with a heat-insulating adhesive layer (4) formed by curing the foam glue; a glue injection port (5) is arranged on the inner box (101) or the outer box (102) and is connected to the chamber (3) and is used for injecting flowing foam glue; a sealing plug (6) is arranged on the glue injection port (5) for sealing the chamber (3).

2. The thermal insulation box according to claim 1, characterized in that: The sealing locking structure comprises an annular folded edge (7) folded outward at the opening end of the inner box (101), a sealing ring (8) folded downward on the annular folded edge (7) and sealingly attached to the outer ring wall of the outer box (102), and a clamping structure provided between the annular folded edge (7) and the outer box (102) for limiting the relative movement between the outer box (102) and the sealing ring (8).

3. The thermal insulation box according to claim 2, characterized in that: A clamping section (9) is protruding from the bottom of the annular folded edge (7) and is in sealing contact with the inner wall of the outer box (102).

4. The thermal insulation box according to claim 3, characterized in that: An introduction slope (11) is provided on the side of the clamping section (9) and / or the sealing ring (8) away from the annular folding edge (7) to facilitate the sealing insertion of the opening end of the outer box (102) between the clamping section (9) and the sealing ring (8).

5. The thermal insulation box according to claim 4, characterized in that: The snap-fit ​​structure comprises a fitting section (12) which is folded inwardly at the opening end of the outer box (102) and can be sealed with the bottom of the annular folded edge (7), a through groove (13) which is arranged through the fitting section (12), and a buckle (14) which is protruded at the bottom of the annular folded edge (7) and passes through the through groove (13) to limit the separation of the annular folded edge (7) and the fitting section (12).

6. The thermal insulation box according to claim 5, characterized in that: The inner box (101), the annular folding edge (7), the sealing ring (8), the clamping section (9) and the buckle (14) are made of plastic, and the outer box (102) and the fitting section (12) are made of metal material.

7. The thermal insulation box according to claim 1, characterized in that: The heat preservation box cover (2) comprises an inner cover (201) close to the heat preservation box body (1) and an outer cover (202) away from the heat preservation box body (1), and a second sealing heat preservation structure is provided between the inner cover (201) and the outer cover (202).

8. The thermal insulation box according to claim 1, characterized in that: The heat preservation box cover (2) is provided with a sealing ring (15) which is in sealing contact with the heat preservation box body (1) when the heat preservation box cover (2) is closed.

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