Heat preservation box

Abstract

The utility model provides a heat preservation box which comprises a box body, a box cover and a table board, at least one first groove is formed in the upper surface of the box cover, a first magnet is embedded in the first groove, an iron sheet and / or a second magnet which can be attracted with the first magnet are / is arranged on the table board, and the table board is magnetically absorbed and contained on the upper surface of the box cover. According to the heat preservation box, the first magnet is embedded in the heat preservation box cover, the second magnet or the iron sheet is arranged on the table plate, and the table plate is contained on the upper surface of the heat preservation box cover in a magnetic attraction mode; the heat preservation box is compact in structure and ingenious in design, the table board is convenient and rapid to store, the heat preservation box cover does not need to be opened while the table board is taken and stored, and the heat preservation effect of the heat preservation box is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the field of thermal insulation boxes, in particular to a thermal insulation box. Background Art

[0002] Insulated boxes have become an essential tool for picnics because they can keep food warm for a long time. When having a picnic outdoors, a table top is needed to place food. Therefore, combined insulated boxes with table tops have appeared on the market. Some existing combined insulated boxes with table tops store the table top under the cover of the insulated box. In this way, the cover of the insulated box must be opened when taking and placing the table top, so that the inside and outside of the insulated box will have a cold or heat exchange, which affects the cold or heat preservation effect of the insulated box; although some store the table top on the outside of the insulated box body, the design is not simple enough, and the table top cannot be stored quickly and conveniently. The utility model provides an insulated box in which the table top is magnetically absorbed on the cover of the insulated box. The design is ingenious and the structure is simple. The table top can be magnetically absorbed firmly on the cover of the insulated box and is not easy to fall off. It can also be stored quickly and easily. Utility Model Content

[0003] The utility model is realized by the following technical solutions:

[0004] An insulated box includes a box body, a box cover and a table top. The upper surface of the box cover is provided with at least one first groove, a magnet 1 is embedded in the first groove, an iron sheet and / or a magnet 2 that can be attracted to the magnet 1 is provided on the table top, and the table top is magnetically absorbed and stored on the upper surface of the box cover. The above scheme is adopted, by embedding a magnet 1 in the insulated box cover, and providing a magnet 2 or an iron sheet on the table top, the table top is stored on the upper surface of the insulated box cover by magnetic attraction; the structure is compact and the design is ingenious, so that the table top can be stored conveniently and quickly, and the insulated box cover does not need to be opened when taking and storing the table top, so as to avoid affecting the insulation effect of the insulated box.

[0005] Furthermore, there are two first grooves, which are symmetrically arranged on the front and rear sides of the box cover, and the lower surface of the table top is provided with second grooves for installing iron sheets and / or magnets from bottom to top at positions corresponding to the first grooves. With the above solution, the second magnet or the iron sheet on the table top is arranged on the lower surface of the table top and directly above the first magnet, so that the magnetic absorption of the table top is more secure and not easy to fall off.

[0006] Furthermore, a third groove is provided on the upper surface of the second groove from bottom to top, and a first through hole is provided in the middle of the upper surface of the third groove, which passes through the upper surface of the table top; a handle is also provided on the table top, and a boss is provided at the lower end of the handle, and the upper end of the handle passes through the second groove, the third groove and the first through hole in sequence and protrudes from the upper surface of the table top, and the boss is arranged in the third groove; a space for accommodating the second magnet is provided at the lower part of the third groove, and the iron sheet cover is arranged in the second groove. By adopting the above scheme, the handle, the second magnet and the iron sheet are installed at the same position of the table top, which is ingenious in design, compact in structure and space-saving.

[0007] Furthermore, at least one handle is provided on the box body; one end of the table top is placed on the handle, and the other end is provided with a bracket for supporting the table top when the table top is unfolded. With the above solution, when the table top is in use, one end can be placed on the handle, and the other end is provided with a bracket for keeping the table top in a horizontal state, which cleverly uses the handle to support the table top, and occupies less space when in use.

[0008] Furthermore, a horizontal section is provided on the lower surface of one end where the table top and the box are connected, the horizontal section and the lower surface of the table top form a second step, a convex block is provided on the lower surface of the horizontal section, and at least one plug-in hole for the convex block to be plugged into is provided on the upper surface of the handle. With the above solution, a horizontal section is provided on the lower surface where the table top and the box are connected, and the convex block is provided on the lower surface of the horizontal section, so that the convex block does not protrude from the lower surface of the table top, making the table top more compact when stored, more firmly magnetically attracted, and taking up minimal space.

[0009] Furthermore, there are two brackets, which are symmetrically distributed along the front and rear direction of the table top; an external thread is provided on the upper end of the bracket, and a thread groove is provided on the bottom of the table top, and the bracket is threadedly connected to the table top; a receiving groove for receiving the bracket is provided on the lower surface of the table top. The above scheme has a simple structure, and the assembly and disassembly of the bracket and the table top are convenient and quick. After the bracket is installed, the support is stable and will not cause horizontal displacement; at the same time, a bracket receiving groove with an upward concave shape is provided on the lower surface of the table top, so that the bracket can also be hidden and stored without protruding from the lower surface of the table top, making the storage of the table top more compact, more firm, and taking up less space.

[0010] Furthermore, the upper surface of the box cover of the above-mentioned incubator is provided with a fourth groove for storing the table board. With the above-mentioned solution, the fourth groove is provided along the four sides of the upper surface of the incubator cover, and when storing the table board, the table board can be stored in the groove on the upper surface of the box cover, which makes the storage more compact and can protect the table board from being damaged.

[0011] Furthermore, the rear side of the box cover of the above-mentioned incubator is hinged with the box body, and the front side of the box cover is buckled with the box body lock. There are two handles, which are arranged on the left and right sides of the box body. Each handle has three plug holes, and the side of the handle is provided with a storage slot for storing a bottle opener. With the above scheme, the handle can be used to move the incubator, and a table can be set up on one or both sides of the incubator at the same time. It can also store a bottle opener, as well as an external basket, a cup holder, etc., so that the functions of the handle are diversified.

[0012] Furthermore, the above-mentioned heat preservation box also includes a pressure balance valve, the valve body of the pressure balance valve is provided with a clamping part at the lower end, the box cover is provided with a mounting through hole, the inner wall of the mounting through hole is provided with a clamping platform, and the lower end of the pressure balance valve can be inserted into the mounting through hole and clamped with the clamping platform. With the above-mentioned solution, the pressure balance valve is installed on the box cover in a clamping manner, which is more convenient to install and remove.

[0013] Furthermore, the pressure balancing valve also includes a valve cover, a breathable membrane and a sealing ring. The valve body has a pressure relief channel connected to the upper and lower ends. The upper end of the pressure relief channel is provided with a hollow mounting recess, and the breathable membrane is arranged in the mounting recess. A flange is provided on the outer side of the valve body where the mounting recess is located, and a slot is provided on the flange. The bottom of the valve cover is provided with a protrusion that is higher than the upper surface of the flange to the top of the valve body and engages with the slot, so that the valve cover is covered on the valve body, and a breathable channel is formed between the valve cover and the valve body. The sealing ring is arranged between the flange and the engaging portion. With the above scheme, when negative pressure is generated inside the incubator, the pressure can be automatically relieved through the pressure relief channel inside the valve body and the breathable membrane, which ensures that the pressure inside and outside the incubator is balanced, and the internal components will not be damaged due to excessive pressure inside the incubator, and the box cover can be opened smoothly, while preventing dust outside the box from entering the incubator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of the thermal insulation box and table top of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of the box cover of the utility model;

[0016] Figure 3 This is a three-dimensional diagram of the table top of the utility model stored in the upper surface of the box cover;

[0017] Figure 4 It is a bottom view of the table top of the utility model without the bracket stored, the handle, the iron sheet and the magnet installed;

[0018] Figure 5 For this utility model Figure 4 A cross-sectional view of the table top along the AA direction;

[0019] Figure 6For this utility model Figure 4 A partial enlarged view of point B in the middle;

[0020] Figure 7 It is an oblique top view of the table top of the utility model when the table top, the handle, the iron sheet and the magnet are assembled and the bracket is stored in the lower surface of the table top;

[0021] Figure 8 For this utility model Figure 7 A cross-sectional view of the table top along the AA direction;

[0022] Fig. 9 This is a bottom view of the table top when the bracket of the utility model is stored on the lower surface of the table top;

[0023] Fig.10 This is a front view of the table top with the bracket of the utility model installed;

[0024] Fig.11 For this utility model Fig.10 A partial enlarged view of the center table panel A;

[0025] Fig.12 This is an oblique upward view of the table top when the bracket of the utility model is not stored;

[0026] Fig.13 It is a three-dimensional diagram of the handle of the utility model;

[0027] Fig.14 The utility model is installed with a single table board in the insulation box;

[0028] Fig.15 The utility model is an incubator installed with double table tops;

[0029] Fig.16 It is an exploded diagram of the pressure balancing valve of the utility model;

[0030] Fig.17 It is a side view of the pressure balancing valve of the utility model;

[0031] Fig.18 It is a front view of the pressure balancing valve of the utility model;

[0032] Fig.19 For this utility model Fig.18 Cross-sectional view of the pressure balance valve along the AA direction;

[0033] Fig. 20 It is a side view of the box cover of the utility model;

[0034] Fig.21 For this utility model Fig. 20 Cross-sectional view along the AA direction when the middle box cover is not installed with a pressure balancing valve;

[0035] Fig. 22 For this utility model Fig.21 A partial enlarged view of point B in the middle;

[0036] Fig.23 For this utility model Fig. 20 The cross-sectional view along the AA direction when the middle box cover is installed with the pressure balance valve;

[0037] Fig.24 For this utility model Fig.23 A partial enlarged view of point B in the middle;

[0038] Fig.25 It is an assembly drawing of the box cover and the lighting lamp of the utility model.

[0039] In the figure: 1. box body; 2. box cover; 3. table top; 211. first groove; 61. magnet one; 36. iron sheet; 62. magnet two; 312. second groove; 313. third groove; 311. first through hole; 34. handle; 341. boss; 314. arc step; 333. accommodation space; 315. first step; 4. handle; 31. bracket; 331. horizontal section; 316. second step; 32. boss; 41. plug-in hole; 317. thread groove; 318. accommodation groove; 319. fourth groove; 411. storage groove; 5. pressure balance valve; 51. valve body; 511. clamping part; 222. installation through hole; 2221. clamping table; 52. valve cover; 53. breathable membrane; 54. sealing ring; 522. pressure relief channel; 55. Mounting recess; 56. flange; 57. slot; 58. protrusion; 11. lock; 12. lighting lamp. DETAILED DESCRIPTION

[0040] The following will further describe the technical solution of the utility model through implementation modes with reference to the accompanying drawings. It should be noted that the following implementation modes are used to help understand the utility model, but do not constitute a limitation to the utility model.

[0041] In the description of the present application, it should be understood that the terms "upper", "lower", "upper part", "lower part", "upper end", "lower end", "front side", "rear side", "left side", "right side", etc. indicate positions or positional relationships based on the positions shown in the drawings; the "upper surface" and "lower surface", "left end", and "right end" of the table top all refer to the upper surface and lower surface of the table top in the unfolded state when in use. This is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation to the present application. Example

[0042] like Figure 1-4As shown, the incubator includes a box body 1, a box cover 2 and a table top 3. The upper surface of the box cover 2 is provided with at least one first groove 211, and a magnet 1 61 is embedded in the first groove 211. The table top 3 is provided with an iron sheet 36 or a magnet 2 62 that can be attracted to the magnet 1 61, or the table top 3 is provided with both the iron sheet 36 and the magnet 2 62. Figure 3 As shown, through the above arrangement, the table top 3 can be magnetically absorbed and stored on the upper surface of the thermal insulation box cover 2. The above technical solution has a compact design structure and an ingenious conception, so that the table top can be stored conveniently and quickly. When taking and storing the table top, there is no need to open the thermal insulation box cover to avoid affecting the thermal insulation effect of the thermal insulation box. Example

[0043] On the basis of Example 1, Figure 2 As shown, there are two first grooves 211 , which are symmetrically arranged on the front and rear sides of the box cover 2 .

[0044] Furthermore, if Figure 4 As shown, two second grooves 312 for mounting the iron sheet 36 or the second magnet 62 are recessed from bottom to top at positions corresponding to the first grooves 211 on the lower surface of the table top 3 .

[0045] Combination Figures 4 to 8 On the lower surface of the table top 3, a second groove 312 is formed from bottom to top and is concave upward. The second groove 312 is a waist-shaped groove. A third groove 313 is formed from bottom to top in the middle of the upper surface of the second groove 312, which is smaller than the second groove 312. A first through hole 311 is formed on the upper surface of the third groove 313, which is smaller than the third groove 313 and passes through the upper surface of the table top 3. A handle 34 is also provided on the table top 3. A boss 341 is provided at the lower end of the handle 34. The outer diameter of the boss 341 is larger than the size of the first through hole 311 and matches the size of the third groove 313. The upper end of the handle 34 passes through the second groove 312, the third groove 313 and the first through hole 311 in sequence and protrudes from the upper surface of the table top 3. The boss 341 is arranged in the third groove 313. Both the second groove 312 and the third groove 313 are waist-shaped grooves. The depth of the third groove 313 is greater than the height of the boss 341. Two arc steps 314 are provided on the long side of the waist shape between the lower part of the third groove 313 and the upper surface of the second groove 312. A receiving space 333 is formed between the two arc steps 314. A screw hole is provided on the first step 315 formed by the second groove 312 and the third groove 313. When installing, firstly, the upper end of the handle 34 is passed through the second groove 312 at the bottom of the table top 3, so that the boss 341 is stuck on the lower side of the step formed by the third groove 313 and the first through hole 311, and then the magnet 2 62 is placed in the receiving space 333, and then the iron sheet 36 with the installation hole is screwed through the screw hole on the first step 315 to fix the cover in the second groove 312.

[0046] Through the above arrangement, the handle 34, the second magnet 62 and the iron sheet 36 are installed at the same position of the table top 3, which is ingenious in design, compact in structure and space-saving. The second magnet and the iron sheet are installed on the lower surface of the table top 3. When the table top 3 is stored, the lower surface of the table top 3 and the upper surface of the box cover 2 are attracted by the magnets, so that the table top 3 is stored on the upper surface of the box cover 2.

[0047] Furthermore, at least one handle 4 is provided on the box body 1; one end of the table top 3 is placed on the handle 4, and the other end is provided with a bracket 31 for supporting the table top 3 when the table top 3 is unfolded.

[0048] Specifically, combined Figures 9 to 14 A horizontal section 331 is provided on the lower surface of one end where the table top 3 and the box body 1 are connected. The horizontal section 331 and the lower surface of the table top 3 form a second step 316. A convex block 32 is provided on the lower surface of the horizontal section 331. The upper surface of the handle 4 is provided with at least one plugging hole 41 for the convex block 32 to be plugged in. Through the above arrangement, the handle can be used as a handle and can also provide support for the table top to fix the table top.

[0049] Preferably, there are two handles 4 , which are arranged on the left and right sides of the thermal insulation box 1 .

[0050] Specifically, the rear side of the insulation box cover 2 is hinged to the insulation box body 1 , the front side of the insulation box cover 2 is buckled with the insulation box body 1 through a lock 13 , and two handles 4 are arranged on the left and right sides of the insulation box body 1 .

[0051] Preferably, there are three plugging holes 41 on each handle 4.

[0052] Preferably, a storage slot 411 for storing a bottle opener is provided on the side of the handle 4. Through this arrangement, the bottle opener can be directly stored on the side of the handle, making the handle more functional.

[0053] In this embodiment, Fig.13As shown, the handle 4 includes an upper portion 42, front and rear side portions 43 and an outer portion 45. The inner side of the upper portion 42 is designed to be arc-shaped, which is more in line with the curve of the heat preservation box. The upper portion 42, the front and rear side portions 43 and the outer portion 45 enclose a storage space; the upper portion 42 has a certain width, and a waist-shaped plug hole 41 is provided thereon to pass through the upper portion 42. Of course, it can also be a through hole of other shapes. Two screw holes 412 are provided at the front and rear ends near the inner side. The outer portion 45 is smoothly connected to the upper portion 42, and the outer portion 45 gradually shrinks inward from top to bottom. Its front and rear views are ear-shaped. The upper section of the outer portion 45 has a certain height in the up and down direction, and a storage groove 411 for storing a bottle opener is provided on the outer surface of the upper section. The middle of the outer part between the bottom of the upper section and the bottom of the handle is hollowed out, and a reinforcing plate 44 is provided between the front and rear side parts 43 at the bottom of the handle 4. A holding space 422 for hand grip is formed between the reinforcing plate 44 and the upper section of the handle. For comfortable hand grip, the bottom of the upper section forms a smooth warped edge inward. Screw holes 412 for mounting the handle 4 are provided at the bottom of the outer section 45 and the front and rear of the reinforcing plate 44.

[0054] Through the above arrangement, handles 4 are arranged on both sides of the incubator, and three plug holes 41 are provided on each handle 4. The handles 4 can be used as multifunctional handles. For example, the handle 4 on one side is set up with the table board, and the plug holes 41 on the handle 4 on the other side can be hung with a basket, a cup holder, a fishing bucket, a disposable cup bucket, a bottle opener, an anti-lost lock plate, etc., and multiple functions can be selected and developed. Or when the table board 3 is not in use, baskets and other items can be hung on the handles on both sides, which is convenient for storing and using items, preventing loss, and improving the utilization rate of the handles.

[0055] Preferably, there are two brackets 31, which are symmetrically distributed along the front-to-back direction of the table top 3 on a side away from the protrusion 32; through the above arrangement, the table top is more stably supported when in use.

[0056] Preferably, the upper end of the bracket 31 is provided with an external thread, the bottom of the table top 3 is provided with a thread groove 312, and the bracket 31 is threadedly connected with the table top 3. Through the above arrangement, the bracket is easy to install and disassemble, and the bracket will not produce horizontal displacement after installation, and the support for the table top is more stable.

[0057] Preferably, a receiving groove 33 for accommodating the bracket 31 is formed on the lower surface of the table top 3 .

[0058] Specifically, Figure 9-12As shown, the lower surface of one end of the table board 3 mounted on the box body is provided with a horizontal section 331, the lower surface of the horizontal section 331 is higher than the lower surface of the table board 3, and a protrusion 32 is provided on the lower surface of the horizontal section, and the lower surface of the horizontal section and the lower surface of the table board 3 form an arc-shaped second step 316. When in use, the protrusion 32 on the lower surface of the table board 3 is inserted into the plug hole 41 of the handle 4, so that one end of the table board 3 is mounted and connected to the thermal insulation box. Two thread grooves 312 are provided along the front and back of the end of the lower surface of the table board 3 away from the protrusion 32, and the upper end of the bracket 31 is provided with an external thread. When the table board is unfolded, the bracket 31 is connected to the table board 3 through threaded cooperation, so that both ends of the table board 3 are supported and kept in a horizontal state. Two parallel upward concave receiving grooves 33 are also provided horizontally on the lower surface of the table board 3 along the length direction, and the bracket 31 can be stored in the receiving groove 33 after being disassembled. Through the above arrangement, the bracket 31 can be hidden and stored at the bottom of the table top 3, which occupies less space and is more compact when the table top is stored.

[0059] Preferably, a fourth groove 319 for accommodating the table top 3 is provided on the upper surface of the box cover 2 .

[0060] Specifically, Figure 1-3 and Fig.14 As shown, the thermal insulation box can be used together with a table top. The upper surface of the box cover 2 is provided with a fourth groove 319 which is recessed downward along all sides. The fourth groove 319 matches the shape of the table top 3. The depth of the fourth groove 319 is the same as the thickness of a table top, so that the table top 3 can be hidden and stored on the upper surface of the box cover 2. The storage is compact and the table top is not easily damaged in the groove. Example

[0061] On the basis of Examples 1 and 2, Fig.15 As described above, the incubator can be used with two table tops 3. In this embodiment, the handle portion 34 on the table top 3 is made of soft material, or another groove for receiving the handle is provided on the upper surface of the table top 3; the depth of the fourth groove 319 on the upper surface of the box cover 2 can be equal to or slightly greater than the thickness of the two table tops, so that the two table tops 3 can be stacked and magnetically received on the upper surface of the box cover 2. Example

[0062] Based on Examples 1, 2, and 3, Figure 16-24 A pressure balancing valve 5 is also provided on the box cover 2. A clamping portion 511 is provided at the lower end of a valve body 51 of the pressure balancing valve 5. A mounting through hole 222 is provided on the box cover 2. A clamping platform 2221 is provided on the inner wall of the mounting through hole 222. The lower end of the pressure balancing valve 5 can extend into the mounting through hole 222 and be clamped with the clamping platform 2221.

[0063] Furthermore, the pressure balancing valve 5 also includes a valve cover 52, a breathable membrane 53 and a sealing ring 54. The valve body 51 has a pressure relief channel 522 connected with the upper and lower ends inside. The upper end of the pressure relief channel 522 is provided with a hollow mounting recess 55, and the breathable membrane 53 is arranged in the mounting recess 55; a flange 56 is provided on the outer side of the valve body 51 where the mounting recess 55 is located, and a clamping groove 57 is provided on the flange 56; a clamping protrusion 58 is provided at the bottom of the valve cover 52, which is higher than the upper surface of the flange 56 to the top of the valve body 51 and is engaged with the clamping groove 57, so that the valve cover 52 covers the valve body 51, and a breathable channel 533 is formed between the valve cover 52 and the valve body 51; the sealing ring 54 is sleeved on the outer side of the valve body 51 between the flange 56 and the clamping portion 511.

[0064] Furthermore, if Fig.17 As shown, the lower end of the valve body 51 is provided with two symmetrical notches 59 from bottom to top along the circumferential direction, and the sealing ring 54 is arranged between the flange 56 and the top of the notch 59. The clamping portion 511 is a flange with a radius gradually decreasing from top to bottom and arranged at the bottom end of the valve body 51 along the circumferential direction of the valve body 51. The above arrangement facilitates the smooth clamping installation of the pressure balance valve 5 in the installation through hole 222.

[0065] Specifically, the installation through hole 222 is a through hole that penetrates the box cover 2 and is opened downward from the bottom surface of the fourth groove 319 on the upper surface of the box cover 2. The upper section of the installation through hole 222 has a mounting concave platform 2223. The lower surface of the flange 56 on the upper part of the valve body 51 is placed on the mounting concave platform 2223. The distance from the bottom of the mounting concave platform 2223 to the bottom surface of the fourth groove 319 is equal to or slightly greater than the height from the lower surface of the flange 56 to the upper surface of the valve cover 52, so that the pressure balance valve 5 is hidden and installed on the box cover 2, and the pressure balance valve 5 is protected from being damaged by objects placed on the box cover. The diameter of the middle section of the installation through hole 222 gradually decreases from top to bottom; the lower section of the installation through hole 222 is a flared section that is smoothly connected to the bottom of the middle section and has a gradually increasing radius, penetrates the bottom surface of the box cover 2, and has a cross-sectional shape of an inverted trumpet. A circumferential clamping platform 2221 is provided at the connection between the bottom of the middle section and the flared section.

[0066] Through the above arrangement, a gap is provided between the engaging parts 511 of the valve body, so that the valve body 51 can be deformed when extending downward into the installation through hole 222, and can be pressed inward to smoothly pass through the middle section of the installation through hole 222. When the engaging part 511 enters the expanded section, the force of pressing inward disappears, the lower end of the valve body 51 expands outward, and the engaging part 511 rests on the bottom of the clamping platform 2221. Since the maximum outer diameter of the engaging part 511 is larger than the aperture of the bottom end of the middle section of the installation through hole 222, the valve body 51 will be stuck in the installation through hole 222. The sealing ring 54 is pushed into the middle section of the installation through hole 222 during the downward movement of the valve body 51, and the box body is effectively sealed by the sealing ring 54. When negative pressure is generated in the insulation box, the pressure can be automatically released through the pressure relief channel 522 inside the valve body 51 and the breathable membrane 53, which ensures the pressure balance inside and outside the insulation box and prevents the internal components from being damaged due to excessive pressure in the insulation box. It can also enable the box lid to be opened smoothly and prevent dust outside the box from entering the insulation box.

[0067] Furthermore, in order to facilitate the use of the incubator outdoors at night, a magnetic waterproof lighting lamp 12 is provided on the lower surface of the box cover 2. The lighting lamp 12 can be adsorbed on the cover or thrown into the ice water inside the incubator for use.

[0068] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, equivalent changes, improvements and modifications made without departing from the principle of the present invention are all within the protection scope of the present invention.

Claims

1. Insulation box, characterized by: The invention comprises a box body (1), a box cover (2) and a table top (3); the box cover (2) has at least one first groove (211) formed on its upper surface; a first magnet (61) is embedded in the first groove (211); an iron sheet (36) and / or a second magnet (62) capable of being attracted to the first magnet (61) are provided on the table top (3); and the table top (3) is magnetically received on the upper surface of the box cover (2).

2. The thermal insulation box according to claim 1, characterized in that: There are two first grooves (211) symmetrically arranged on the front and rear sides of the box cover (2); the lower surface of the table top (3) is provided with second grooves (312) for mounting an iron sheet (36) and / or a magnet from bottom to top at positions corresponding to the first grooves (211).

3. The thermal insulation box according to claim 2, characterized in that: A third groove (313) is formed on the upper surface of the second groove (312) from bottom to top, and a first through hole (311) penetrating the upper surface of the table top (3) is formed in the middle of the upper surface of the third groove (313); a handle (34) is also provided on the table top (3), and a boss (341) is provided at the lower end of the handle (34); the upper end of the handle (34) passes through the second groove (312), the third groove (313) and the first through hole (311) in sequence to protrude from the upper surface of the table top (3), and the boss (341) is arranged in the third groove (313); a receiving space (333) for receiving the second magnet (62) is provided at the lower part of the third groove (313), and the iron sheet (36) is covered in the second groove (312).

4. The thermal insulation box according to claim 3, characterized in that: At least one handle (4) is provided on the box body (1); one end of the table top (3) is placed on the handle (4), and the other end is provided with a bracket (31) for supporting the table top (3) when the table top (3) is unfolded.

5. The thermal insulation box according to claim 4, characterized in that: A horizontal section (331) is provided on the lower surface of one end of the table top (3) and the box body (1), the horizontal section (331) and the lower surface of the table top (3) form a second step (316), a protrusion (32) is provided on the lower surface of the horizontal section (331), and at least one plug-in hole (41) for plugging the protrusion (32) is provided on the upper surface of the handle (4).

6. The thermal insulation box according to claim 5, characterized in that: There are two brackets (31), which are symmetrically distributed along the front-to-back direction of the table top (3); an external thread is provided at the upper end of the bracket (31), a thread groove (317) is provided at the bottom of the table top (3), and the bracket (31) is threadedly connected to the table top (3); and a receiving groove (318) for accommodating the bracket (31) is provided on the lower surface of the table top (3).

7. The thermal insulation box according to any one of claims 1 to 6, characterized in that: The upper surface of the box cover (2) is provided with a fourth groove (319) for accommodating the table top (3).

8. The thermal insulation box according to any one of claims 4 to 6, characterized in that: The rear side of the box cover (2) is hinged to the box body (1), and the front side of the box cover (2) is locked with the box body (1). There are two handles (4) arranged on the left and right sides of the box body (1), and each handle (4) has three insertion holes (41). The side of the handle (4) is provided with a storage groove (411) for storing a bottle opener.

9. The thermal insulation box according to any one of claims 1 to 6, characterized in that: It also comprises a pressure balancing valve (5), wherein a clamping portion (511) is provided at the lower end of a valve body (51) of the pressure balancing valve (5), a mounting through hole (222) is provided on the box cover (2), a clamping platform (2221) is provided on the inner wall of the mounting through hole (222), and the lower end of the pressure balancing valve (5) can extend into the mounting through hole (222) and be clamped with the clamping platform (2221).

10. The thermal insulation box according to claim 9, characterized in that: The pressure balancing valve (5) further comprises a valve cover (52), a breathable membrane (53) and a sealing ring (54); a pressure relief passage (522) communicating with the upper and lower ends is provided inside the valve body (51); a hollow mounting recess (55) is provided at the upper end of the pressure relief passage (522); the breathable membrane (53) is arranged in the mounting recess (55); a flange (56) is provided on the outer side of the valve body (51) where the mounting recess (55) is located; a clamping groove (57) is provided on the flange (56); a clamping protrusion (58) is provided at a distance from the upper surface of the flange (56) to the top of the valve body (51) and is engaged with the clamping groove (57) at the bottom of the valve cover (52), so that the valve cover (52) covers the valve body (51), and a breathable passage is formed between the valve cover (52) and the valve body (51); the sealing ring (54) is arranged between the flange (56) and the engaging portion (511).

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