Dry ice heat preservation box with stable pressure relief function

Abstract

The utility model relates to the field of heat preservation, in particular to a dry ice heat preservation box with a stable pressure relief function. Wherein the box cover is vertically provided with an air inlet channel and a valve element moving channel which are communicated with each other from bottom to top in sequence, the lower port of the air inlet channel is communicated with the interior of the heat preservation box, the upper end of the valve element moving channel is sealed, and the box cover is provided with a transverse air outlet channel which is communicated with the valve element moving channel; the valve element is slidably arranged in the valve element moving channel. The elastic force of the spring is used for pressing the lower end of the valve element to block an upper port of the air inlet channel. After the pressure in the heat preservation box is larger than the set pressure relief pressure and the valve element is separated from the upper end of the air inlet channel, the air inlet channel and the air outlet channel are communicated, and then redundant air is exhausted from the air outlet channel. And the effect of reducing the dust in the air on the pressure relief effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of heat preservation, in particular to a dry ice heat preservation box with a stable pressure relief function. Background Art

[0002] Dry ice insulated box, used to store dry ice.

[0003] When dry ice changes from solid to gas, it will produce carbon dioxide gas. If it is not released in time, the pressure inside the insulated box will increase, which may cause safety problems. At present, the pressure relief valve of the dry ice insulated box vertically penetrates and is installed on the box cover. The gas channel inside the pressure relief valve vertically penetrates the box cover. The air inlet and air outlet of the gas channel are on the upper and lower sides of the box cover. The air inlet of the pressure relief valve is connected to the inside of the insulated box. When the internal pressure of the insulated box is greater than the set pressure, the internal pressure of the insulated box drives the valve core of the pressure relief valve to move in the gas channel, thereby opening the pressure relief valve to relieve pressure.

[0004] The structure and arrangement of the above-mentioned pressure relief valve have the following disadvantages: after dust in the air falls into the gas channel from the gas outlet, the opening of the valve core and the smoothness of the pressure relief gas in the gas channel will be reduced. Utility Model Content

[0005] The utility model provides a dry ice insulation box with a stable pressure relief function, which mainly solves one of the following problems: how to reduce the influence of dust in the air on the pressure relief effect.

[0006] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is:

[0007] Dry ice incubator with stable pressure relief function.

[0008] The box cover is used to seal the upper opening of the box body;

[0009] The box cover is vertically provided with an air inlet channel and a valve core moving channel which are interconnected from bottom to top, the lower end of the air inlet channel is connected with the inside of the heat preservation box, the upper end of the valve core moving channel is sealed, and the box cover is provided with a transverse air outlet channel, which is connected with the valve core moving channel; the valve core is slidably arranged in the valve core moving channel, and the elastic force of the spring is used to press the lower end of the valve core to block the upper end of the air inlet channel;

[0010] When the pressure in the insulation box is greater than the set pressure relief pressure, the valve core is separated from the upper end of the air inlet channel, the air inlet channel and the air outlet channel are connected, and then the excess gas is discharged from the air outlet channel.

[0011] Furthermore, the box cover includes a box cover insulation layer and a box cover shell; wherein the box cover shell is composed of a box cover inner liner and a box cover outer liner, and a box cover insulation layer is arranged in the gap between the box cover inner liner and the box cover outer liner; the box cover insulation layer is composed of a box cover vacuum insulation board and a box cover foam insulation board, wherein the box cover foam insulation board is wrapped on the outside of the box cover vacuum insulation board.

[0012] Furthermore, the box body includes a box insulation layer and a box shell; wherein the box shell is composed of a box inner liner and a box outer liner, and a box insulation layer is arranged in the gap between the box inner liner and the box outer liner; wherein the box insulation layer is composed of a box vacuum insulation board and a box foam insulation board, wherein the box foam insulation board is wrapped on the outside of the box vacuum insulation board.

[0013] Furthermore, a hinge is installed between the box cover and one side of the box body; the hinge is an angle hinge, that is, the hinge can allow the box cover to be opened at a certain angle;

[0014] The insulated box is provided with a locking member on the opposite side of the hinge, and the locking member can lock the box cover and the box body together or unlock and open them.

[0015] Furthermore, the surfaces of the box cover foam insulation board and the box body foam insulation board are covered with a heat-insulating reflective film.

[0016] Furthermore, the box cover is provided with a support rod groove; one end of the support rod is rotatably arranged in the support rod groove, and the support rod can be completely received in the support rod groove;

[0017] The box body is provided with a positioning pit;

[0018] When the box cover is opened and the free end of the support rod falls into the positioning recess of the box body, the support rod can limit the box cover from moving in the closing direction.

[0019] Furthermore, rollers are arranged at the bottom of the box body to facilitate the movement of the thermal insulation box.

[0020] Furthermore, a roller receiving groove is provided on the upper side of the box cover;

[0021] When the two thermal insulation boxes are stacked one above the other, the rollers of the upper thermal insulation box all fall into the independent roller receiving grooves.

[0022] Furthermore, the roller receiving groove is connected to a liquid flow port, and when water accumulates in the roller receiving groove, the accumulated water can be discharged from the roller receiving groove through the liquid flow port.

[0023] The beneficial effects of the utility model are:

[0024] When the pressure in the insulation box is greater than the set pressure relief pressure, the elastic force of the spring is overcome, and when the valve core is separated from the upper end of the air inlet channel, the air inlet channel and the air outlet channel are connected, and then the excess gas is discharged from the air outlet channel; because the air outlet channel is arranged horizontally, compared with the vertical gas channel of the existing design, the horizontal air outlet channel of the present application reduces the large particles of dust in the air from falling into it, thereby reducing the influence of dust in the air on the pressure relief effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of this application;

[0026] Figure 2 This is a schematic diagram of the structure of this application;

[0027] Figure 3 A cross-sectional view of the present application;

[0028] Figure 4 For the box cover Figure 3 The enlarged schematic diagram of point A in the middle;

[0029] Figure 5 This is the state diagram of the box lid being opened;

[0030] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0031] Figure 7 for Figure 6 The enlarged schematic diagram at C in the middle;

[0032] Figure 8 The figure is a schematic diagram of the stacking boxes of the incubator boxes;

[0033] Reference table of reference numerals:

[0034] Box cover 100, box cover insulation layer 110, box cover vacuum insulation board 111, box cover foam insulation board 112, box cover shell 120, air inlet channel 101, valve core moving channel 102, air outlet channel 103, spring 104, valve core 105, support rod groove 106, easy buckle groove 1061, clamp 1062, support rod 107, roller accommodating groove 108, liquid flow port 1081;

[0035] Box body 200, box body insulation layer 210, box body vacuum insulation board 211, box body foam insulation board 212, box body shell 220, positioning pit 201;

[0036] Roller 300;

[0037] Hinge 400;

[0038] Locking element 500. DETAILED DESCRIPTION

[0039] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings. The same parts are represented by the same figure numbers. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0040] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0041] like Figures 1 to 8 As shown, a dry ice insulated box with a stable pressure relief function;

[0042] The box cover 100 is used to seal the upper opening of the box body 200; preferably, the box cover 100 is provided with a circle of sealing grooves to cooperate with the upper opening of the box body 200 to form a sealing structure, and a rubber strip for sealing is provided in the sealing groove.

[0043] See also Figure 3 , Figure 4 The box cover 100 is vertically provided with an air inlet channel 101 and a valve core moving channel 102 which are interconnected from bottom to top. The lower end of the air inlet channel 101 is connected to the inside of the heat preservation box, and the upper end of the valve core moving channel 102 is sealed. The box cover 100 is provided with a horizontal air outlet channel 103, and the air outlet channel 103 is connected to the valve core moving channel 102; the valve core 105 is slidably arranged in the valve core moving channel 102, and the elastic force of the spring 104 is used to press the lower end of the valve core 105 to block the upper end of the air inlet channel 101.

[0044] After the pressure in the insulated box is greater than the set pressure relief pressure, the elastic force of the spring 104 is overcome, and when the valve core 105 is separated from the upper end of the air inlet channel 101, the air inlet channel 101 and the air outlet channel 103 are connected, and then the excess gas is discharged from the air outlet channel 103; because the air outlet channel 103 is arranged horizontally, compared with the vertical gas channel of the existing design, the horizontal air outlet channel 103 of the present application reduces the large particles of dust in the air from falling into it, thereby reducing the influence of dust in the air on the pressure relief effect.

[0045] Furthermore, a hinge 400 is installed between the box cover 100 and one side of the box body 200; the hinge 400 is an angle hinge, that is, the hinge 400 can allow the box cover 100 to be opened at a certain angle.

[0046] The thermal insulation box is provided with a locking member 500 on the opposite side of the hinge 400 , and the locking member 500 can lock the box cover 100 and the box body 200 together or unlock them.

[0047] Furthermore, the box cover 100 includes a box cover insulation layer 110 and a box cover shell 120; wherein the box cover shell 120 is composed of a box cover inner liner and a box cover outer liner, and the box cover insulation layer 110 is arranged in the gap between the box cover inner liner and the box cover outer liner; the box cover insulation layer 110 is composed of a box cover vacuum insulation board 111 and a box cover foam insulation board 112, wherein the box cover foam insulation board 112 is wrapped around the outer side of the box cover vacuum insulation board 111.

[0048] The box body 200 includes a box insulation layer 210 and a box shell 220; wherein the box shell 220 is composed of a box inner liner and a box outer liner, and a box insulation layer 210 is arranged in the gap between the box inner liner and the box outer liner; wherein the box insulation layer 210 is composed of a box vacuum insulation board 211 and a box foam insulation board 212, wherein the box foam insulation board 212 is wrapped on the outside of the box vacuum insulation board 211.

[0049] The above-mentioned structure of the box body insulation layer 210 and the box cover insulation layer 110 helps to improve the insulation effect.

[0050] Furthermore, the surfaces of the box cover foam insulation board 112 and the box body foam insulation board 212 are covered with a heat-insulating reflective film; the composite use of the foam insulation layer and the heat-insulating film further isolates heat conduction.

[0051] Furthermore, when the box cover 100 is opened, it is in an open state. During the process of filling objects, if the box cover is accidentally touched, the box cover is easy to be folded back and closed.

[0052] See also Figure 5 , Figure 6 , Figure 7 The box cover 100 is provided with a support rod groove 106; one end of the support rod 107 is rotatably disposed in the support rod groove 106, and the support rod 107 can be completely received in the support rod groove 106.

[0053] The box body 200 is provided with a positioning pit 201 .

[0054] When the box cover 100 is opened and the free end of the support rod 107 falls into the positioning pit 201 of the box body 200, the support rod 107 can limit the box cover 100 from moving in the closing direction, thereby preventing the box cover from being accidentally folded back and closed.

[0055] Furthermore, the rollers 300 are arranged at the bottom of the box body 200 to facilitate the movement of the thermal insulation box.

[0056] Further, a roller receiving groove 108 is provided on the upper side of the box cover 100;

[0057] When the two incubators are stacked up and down, the rollers 300 of the upper incubator all fall into the independent roller receiving grooves 108. Since the rollers 300 fall into the independent roller receiving grooves 108, it helps to stack and position the incubators.

[0058] Furthermore, the roller receiving groove 108 is connected to a liquid flow port 1081 . When water accumulates in the roller receiving groove 108 , the accumulated water is discharged from the roller receiving groove 108 through the liquid flow port 1081 .

[0059] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. A dry ice insulated box with a stable pressure relief function, characterized in that: The box cover is used to seal the upper opening of the box body; The box cover is vertically provided with an air inlet channel and a valve core moving channel which are interconnected from bottom to top, the lower end of the air inlet channel is connected with the inside of the heat preservation box, the upper end of the valve core moving channel is sealed, and the box cover is provided with a transverse air outlet channel, which is connected with the valve core moving channel; the valve core is slidably arranged in the valve core moving channel, and the elastic force of the spring is used to press the lower end of the valve core to block the upper end of the air inlet channel; When the pressure in the insulation box is greater than the set pressure relief pressure, the valve core is separated from the upper end of the air inlet channel, the air inlet channel and the air outlet channel are connected, and then the excess gas is discharged from the air outlet channel.

2. The dry ice insulation box with stable pressure relief function according to claim 1, characterized in that: The box cover includes a box cover insulation layer and a box cover shell; wherein the box cover shell is composed of a box cover inner liner and a box cover outer liner, and a box cover insulation layer is arranged in the gap between the box cover inner liner and the box cover outer liner; the box cover insulation layer is composed of a box cover vacuum insulation board and a box cover foam insulation board, wherein the box cover foam insulation board is wrapped on the outside of the box cover vacuum insulation board.

3. The dry ice insulation box with stable pressure relief function according to claim 1, characterized in that: The box body includes a box insulation layer and a box shell; wherein the box shell is composed of a box inner liner and a box outer liner, and a box insulation layer is arranged in the gap between the box inner liner and the box outer liner; wherein the box insulation layer is composed of a box vacuum insulation board and a box foam insulation board, wherein the box foam insulation board is wrapped on the outside of the box vacuum insulation board.

4. The dry ice insulation box with stable pressure relief function according to claim 1, characterized in that: A hinge is installed on one side of the box cover and the box body; the hinge is an angle hinge, that is, the hinge can allow the box cover to open at a certain angle; The insulated box is provided with a locking member on the opposite side of the hinge, and the locking member can lock the box cover and the box body together or unlock and open them.

5. The dry ice insulation box with stable pressure relief function according to claim 1 or 2, characterized in that: The surfaces of the box cover foam insulation board and the box body foam insulation board are covered with heat insulation reflective film.

6. The dry ice insulation box with stable pressure relief function according to claim 4, characterized in that: The box cover is provided with a support rod groove; one end of the support rod is rotatably arranged in the support rod groove, and the support rod can be completely received in the support rod groove; The box body is provided with a positioning pit; When the box cover is opened and the free end of the support rod falls into the positioning recess of the box body, the support rod can limit the box cover from moving in the closing direction.

7. The dry ice insulation box with stable pressure relief function according to claim 1, characterized in that: Rollers are arranged at the bottom of the box body to facilitate the movement of the thermal insulation box.

8. The dry ice insulation box with stable pressure relief function according to claim 7, characterized in that: A roller receiving groove is provided on the upper side of the box cover; When the two thermal insulation boxes are stacked one above the other, the rollers of the upper thermal insulation box all fall into the independent roller receiving grooves.

9. The dry ice insulation box with stable pressure relief function according to claim 8, characterized in that: The roller receiving groove is connected to a liquid flow port. When water accumulates in the roller receiving groove, the accumulated water can be discharged from the roller receiving groove through the liquid flow port.

10. The dry ice insulation box with stable pressure relief function according to claim 8, characterized in that: The box cover (100) is provided with a circle of sealing grooves which cooperate with the upper opening of the box body (200) to form a sealing structure, and a rubber strip for sealing is provided in the sealing groove.

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