CN214856111U

CN214856111U - Self-heating device and pressure release exhaust assembly thereof

Info

Publication number: CN214856111U
Application number: CN202120820412.5U
Authority: CN
Inventors: 陈剑锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-26
Anticipated expiration: 2031-04-21

Abstract

The utility model provides a from heating device and pressure release exhaust subassembly thereof, wherein this pressure release exhaust subassembly for pressure in getting rid of the container, it includes: the floating body is arranged in the container so as to prevent reaction liquid in the container from overflowing outwards under the condition that the exhaust port is normally open.

Description

Self-heating device and pressure release exhaust assembly thereof

Technical Field

The utility model relates to a pressure release exhaust technical field especially relates to a self-heating device and pressure release exhaust subassembly thereof.

Background

With the change of seasons, in cold winter, the purchased beverages, foods and the like easily stimulate intestines and stomach to generate uncomfortable feeling due to low temperature when being eaten. However, it is difficult to heat beverages and foods in an outdoor environment where there is no fire source or power source. The heating bag made of lime powder and other substances can react chemically with water to release heat, thereby providing a new heat source. With such heat sources, the skilled person has proposed many disposable self-heating solutions.

Self-heating products such as self-heating rice, self-heating chafing dish, etc. gradually come into the lives of people. However, the prior art has a problem in that the heating bag is mixed with the reaction liquid to generate heat through an exothermic reaction, and simultaneously, gas is generated, and the gas has overpressure explosion danger if not discharged, so that the heating chamber needs to be exhausted and decompressed.

However, in the prior art, a vent hole is usually formed in the cover of the self-heating device to release gas. However, the drawback is that the self-heating product is inevitably subjected to vibration, or even tumbling in outdoor mobile environments, such as hiking or vehicle driving, and thus the reaction liquid is easily spilled from the vent holes, which causes a safety risk in use.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a self-heating device and a pressure-releasing exhaust assembly thereof, which can prevent the reaction liquid in the container from overflowing and scattering under the condition that the exhaust port is normally open.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a pressure-release exhaust assembly including: the floating body is arranged in the container, at least part of the floating body floats on liquid, and the second end of the first air pipe is communicated with an air outlet of the container.

In a possible preferred embodiment, the pressure relief vent assembly further comprises: the pressure valve is arranged in the confluence hole and timely seals the first air hole, wherein the pressure valve comprises: the valve comprises a valve body, a support and an elastic piece, wherein the support is fixed in the confluence hole and is used for supporting the elastic piece connected with the valve body, and the valve body is elastically supported by the elastic piece to open/close the first air hole at proper time.

In a possible preferred embodiment, the pressure relief vent assembly further comprises: the pressure valve is arranged in the confluence hole and timely seals the first air hole, wherein the pressure valve comprises: the valve comprises a valve body, a support, an elastic piece and a support, wherein the support is fixed in the confluence hole, the support is fixed on the support, the elastic piece is sleeved on the support, and a guide opening is formed in the valve body so that the support can be inserted into the guide opening and the valve body can be matched and connected with the elastic piece so as to support the valve body to lift along the support in an elastic mode and open/close a first air hole in due time.

In a possible preferred embodiment, the pressure relief vent assembly further comprises: a vent assembly, comprising: the second trachea, the elastic component, the shutoff board, wherein the second trachea in the container outside be connected with the gas vent in order with first trachea intercommunication, be equipped with the second gas pocket on the second trachea second position department pipe wall, the shutoff board pass through the elastic component with the trachea is connected, so that the shutoff board is in trachea second position department elasticity seals the second gas pocket.

In order to achieve the above object, according to a second aspect of the present invention, there is also provided a pressure-release exhaust assembly including: a floating body, a first air pipe, wherein the floating body includes: the floating device comprises a buoy unit and a floating wing, wherein a first air hole is formed in a first position of the buoy unit, a confluence hole communicated with the first air hole is formed in a second position of the buoy unit, the floating wing is arranged at a third position of the buoy unit, the confluence hole is communicated with a first end of a first air pipe, the floating body is placed in a container, at least part of the floating body floats on liquid and keeps the orientation of the first air hole, and a second end of the first air pipe is communicated with an air outlet of the container.

In a possible preferred embodiment, the pressure relief vent assembly further comprises: the pressure valve is arranged in the confluence hole and timely seals the air channel of the first air pipe, wherein the pressure valve comprises: the valve comprises a valve body, a support and an elastic piece, wherein the support is fixed in the confluence hole and is used for supporting the elastic piece connected with the valve body, and the valve body is elastically supported by the elastic piece to open/close the first air hole at proper time.

In order to achieve the above object, according to a third aspect of the present invention, there is also provided a self-heating apparatus, comprising: the device comprises a pressure release exhaust assembly, a container, reaction liquid and a heat source body, wherein the pressure release exhaust assembly comprises: the floating body is arranged in the inner cavity of the container, and the second end of the first air pipe is communicated with an air outlet of the container; the heat source body is placed in the inner cavity of the container, and the inner cavity of the container is filled with a proper amount of reaction liquid to promote the heat source body to release heat reaction, and the floating body is at least partially floated in the reaction liquid when the container is turned over.

In a possible preferred embodiment, the self-heating device further comprises: the pressure valve is arranged in the confluence hole and timely seals the first air hole, wherein the pressure valve comprises: the valve comprises a valve body, a support and an elastic piece, wherein the support is fixed in the confluence hole and is used for supporting the elastic piece connected with the valve body, and the valve body is elastically supported by the elastic piece to open/close the first air hole at proper time.

In a possible preferred embodiment, the self-heating device further comprises: a vent assembly, comprising: the second trachea, elastic component, shutoff board, wherein the second trachea in the container outside be connected with the gas vent in order with first trachea intercommunication, be equipped with the second gas pocket on the second trachea second position department pipe wall, the shutoff board pass through the elastic component with the trachea is connected, so that the shutoff board is in trachea second position department elasticity seals the second gas pocket.

In order to achieve the above object, according to a fourth aspect of the present invention, there is also provided a self-heating apparatus, comprising: the device comprises a pressure release exhaust assembly, a container, reaction liquid and a heat source body, wherein the pressure release exhaust assembly comprises: a floating body, a first air pipe, wherein the floating body includes: the floating body is placed in the inner cavity of the container, and the second end of the first air pipe is communicated with an air outlet of the container; the heat source body is placed in an inner cavity of the container, a proper amount of reaction liquid is filled in the inner cavity of the container, the heat source body is promoted to release heat reaction, and the floating body is at least partially floated in the reaction liquid and keeps the orientation of the first air hole when the container is turned over.

In a possible preferred embodiment, the self-heating device further comprises: the pressure valve is arranged in the confluence hole and timely seals the first air hole, wherein the pressure valve comprises: the valve, the bracket and the elastic piece are fixed in the confluence hole to support the elastic piece connected with the valve, wherein the valve is elastically supported by the elastic piece to open/close the first air hole at proper time

Through the utility model provides a this from heating device and pressure release exhaust subassembly thereof can prevent that the reaction liquid in the container from spilling to the excessive under the gas vent normal open condition to keep the seal in the container to a certain extent, be suitable for to use in all kinds of outdoor removal environment through the book, extended suitable scene, and improved convenience of use, security.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic overall structure diagram of a first embodiment and a third embodiment of the present invention;

fig. 2 is a schematic structural view of a floating body according to the first and third embodiments of the present invention;

fig. 3 is a schematic view of a half-section of a floating body with a pressure valve according to the first and third embodiments of the present invention;

fig. 4 is a schematic view of a half-section of a floating body with a pressure valve according to the first and third embodiments of the present invention;

fig. 5 is a schematic view of a half-section of another floating body with a pressure valve according to the first and third embodiments of the present invention;

fig. 6 is a schematic view of a semi-section structure of a floating body with floating wings according to a second and a fourth embodiments of the present invention;

fig. 7 is a schematic view of a half-section of a hollow floating body with a pressure valve according to the first and third embodiments of the present invention;

fig. 8 is a schematic view of a half-section of a hollow floater according to a second and a fourth embodiments of the present invention;

fig. 9 is a schematic view of a half-section of a hollow-body-shaped floating body with floating wings and a pressure valve according to a second and fourth embodiments of the present invention;

fig. 10 is a schematic view of a half-section structure of a hollow floating body with floating wings according to a second and fourth embodiments of the present invention;

fig. 11 is a schematic view of the floating body in a third and fourth embodiments of the present invention, wherein the container is provided with an air vent assembly and the container is in a turned state;

fig. 12 is a schematic structural view of the middle vent assembly according to the first, second, third and fourth embodiments of the present invention.

Description of the reference numerals

The floating body 1, the first air hole 2, the first air pipe 3, the container 4, the cap 5, the liquid 6, the reaction liquid 6', the heat source body 7, the exhaust port 8, the confluence hole 9, the pressure valve 11, the valve 12, the bracket 13, the spring 14, the pillar 15, the guide port 16, the ventilation assembly 71, the second air pipe 72, the blocking plate 73, the second air hole 74, the buoy unit 111 and the floating wing 112.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. And the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in combination with the prior art according to specific situations. Furthermore, the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. One or more of the illustrated components may be required or unnecessary, and the relative positions of the illustrated components may be adjusted according to actual needs.

It should be noted that the heat source body in this embodiment is preferably made of a material/structure in the prior art to form a form such as chemical reaction heating or electrical heating, and this embodiment is not limited thereto. In a preferred embodiment, when the heat source body is a quicklime heating pack, for example, the reaction liquid may be water, and the liquid referred to in this case may be water or may refer to a reaction liquid, so that those skilled in the art may select the liquid/water/reaction liquid/heat source body according to a scheme that may be implemented by the embodiment or make an alternative understanding of other existing technologies, and is not limited by the name of the liquid/water/reaction liquid/heat source body.

(A)

In order to prevent the liquid 6 in the container 4 from spilling over when the vent 8 is normally open, as shown in fig. 1 to 2, a first aspect of the present invention provides a pressure-releasing vent assembly, comprising: a floating body 1, a first air pipe 3, wherein the floating body 1 is preferably made of at least one of the existing materials that are easily floated on liquid 6, such as polymer materials, such as foam plastics, polyester fibers, etc. or wood, so as to provide sufficient buoyancy, in this embodiment, the floating body 1 is preferably made of foam plastics, so as to make the floating body 1 mostly float on the liquid 6, wherein the floating body 1 is provided with a first air hole 2 at a first position, and a confluence hole 9 communicated with the first air hole 2 at a second position, wherein the floating body 1 comprises the outer surface of the floating body 1 at the first position, and the second position is preferably the inside of the floating body 1, and on the other hand, the confluence hole 9 is further communicated with the first end of the first air pipe 3, the floating body 1 is placed in a container 4, and the floating body 1 at least partially floats on the liquid 6, the second end of the first gas pipe 3 communicates with the gas outlet 8 of the container 4.

Under this embodiment, this first trachea 3 is the preferred hose, thereby be convenient for the floating body 1 to float in liquid 6 time, can be in the same direction as this floating body 1's drive and remove, do not hinder floating body 1's floating, thereby make this floating body 1 float on liquid 6 all the time, and converge gaseous entering this cave 9 that converges through this first gas pocket 2, and discharge by first trachea 3, it is visible no matter how this container 4 rocks, this floating body 1 will float in the liquid level all the time, in order to avoid converging cave 9 and poured into liquid 6, even if this container 4's gas vent 8 is always open, also can not have a large amount of liquid 6 to overflow.

In order to better prevent the liquid 6 from being poured into the confluence hole 9, in a preferred embodiment, the first air hole 2 at the position of the liquid surface can be prevented from being soaked by water by reducing the diameter of the first air hole 2 to match the tension of the liquid 6.

It should be noted that the term "overflow liquid 6" in the present invention is only used to refer to the liquid 6 used for floating the floating body 1, and does not include water vapor or other condensed liquid 6, and the purpose of the present invention is only to prevent the liquid 6 contained in the container 4 from spilling out due to the shaking of the container 4.

On the other hand, in order to further ensure that the liquid 6 cannot penetrate into the confluence recess 9, in a preferred embodiment, the pressure-release vent assembly further comprises: a pressure valve 11, wherein the pressure valve 11 is disposed in the confluence cavity 9, and timely closes the first air hole 2, and as shown in fig. 3 and 4, the pressure valve 11 comprises: the valve 12 is elastically supported by the spring 14 to form a seal against the first air hole 2 in the confluence cavity 9, and the valve 12 is opened only when the pressure in the container 4 is greater than the elastic force of the spring 14 so as to discharge air pressure into the first air hole 2, thereby ensuring that the first air hole 2 is temporarily sealed when the pressure in the container 4 is not up to a rated value, and preventing the liquid 6 from being carried out of the exhaust port 8 after penetrating into the confluence cavity 9. In the embodiment, as shown in fig. 3, the first position of the first air hole 2 provided on the floating body 1 is preferably a position which can be covered by the valve 12.

Wherein, in order to better stabilize the elastic closing mechanism of the pressure valve 11, in another preferred embodiment, as shown in fig. 5, the pressure valve 11 comprises: the valve 12, the bracket 13, the spring 14 and the pillar 15, the bracket 13 is fixed in the confluence cavity 9, the pillar 15 is fixed on the bracket 13, the spring 14 is sleeved on the pillar 15, the valve 12 is provided with a guide port 16 for the insertion of the pillar 15 and the matching of the valve 12 and the spring 14, so as to support the valve 12 to elastically lift along the pillar 15, so as to abut against the first air hole 2 to form a seal in the confluence cavity 9, and the valve 12 is opened only when the pressure in the container 4 is greater than the elastic force of the spring 14, so as to allow the first air hole 2 to discharge air pressure, thereby ensuring that the first air hole 2 is temporarily sealed when the pressure in the container 4 is less than a rated value, and preventing the liquid 6 from being taken out of the exhaust port 8 after penetrating into the confluence cavity 9. In the embodiment, as shown in fig. 5, the first position of the first air hole 2 provided on the floating body 1 is preferably a position which can be covered by the valve 12. Therefore, the valve 12 is prevented from shaking or being stuck when being lifted, and the first air hole 2 is further ensured to be closed timely.

In order to further ensure that the liquid 6 cannot penetrate into the confluence recess 9, in another preferred embodiment, the pressure-release vent assembly further comprises: a vent assembly 71, wherein the vent assembly 71 may be disposed simultaneously with the pressure valve 11 or separately, and the present embodiment is not limited thereto, as shown in fig. 11 and 12, wherein the vent assembly 71 includes: the second air pipe 72 is connected with the air outlet 8 at the outer side of the container 4 to be communicated with the first air pipe 3, a second air hole 74 is formed in the pipe wall of the second position of the second air pipe 72, and the blocking plate 73 is connected with the air pipe through the spring 14, so that the second air hole 74 is elastically blocked by the blocking plate 73 at the second position of the air pipe.

Therefore, when the internal pressure of the container 4 reaches a certain degree, the blocking plate 73 is propped away to release the air pressure, and once the internal pressure of the container 4 is stabilized within a preset range, the blocking plate 73 is driven by the spring 14 to return to the original position, so that the sealing function is achieved, the first air pipe 3 is in a closed state, the reaction liquid 6' cannot enter the confluence hole 9 through the first air hole 2 due to the pressure relationship in the pipe, and the internal liquid 6 is prevented from seeping out and is convenient to carry. It is worth mentioning that the control of the inner pressure of the container 4 can be arranged in accordance with the adjustment of the spring force of the spring 14.

It should be noted that, as shown in fig. 1 to 2, the floating body 1 is a sphere with a certain thickness, but in other embodiments, the floating body 1 may be a hollow sphere, as shown in fig. 7, the size of the first air holes 2 is reduced to match the tension of the liquid 6, so that a better floating effect can be achieved, and therefore, the thickness of the floating body 1 is not limited in this embodiment, and those skilled in the art can select and combine the floating body according to actual situations.

(II)

In order to prevent the reaction liquid 6' in the container 4 from spilling over under the condition that the exhaust port 8 is normally open, as shown in fig. 6, according to a second aspect of the present invention, there is provided a pressure-releasing exhaust assembly, comprising: a floating body 1, a first gas pipe 3, wherein the floating body 1 comprises: a buoy unit 111, a floating wing 112, wherein said floating wing 112 is preferably made of at least one of the existing materials that are easily floated on the liquid 6, such as polymer materials, such as foam plastics, polyester fibers, etc. or wood, so as to provide sufficient buoyancy, and in this embodiment, it is preferable to make the floating wing 112 of foam plastics, so as to make the floating wing 112 most float on the liquid 6, wherein the buoy unit is provided with a first air hole 2 at a first position, a confluence hole 9 communicated with the first air hole 2 at a second position, said floating wing 112 is provided at a third position of said buoy unit 111, as shown in fig. 6, wherein the first position of the buoy unit includes the upper outer surface of the buoy unit 111, and the second position is preferably the inner part of the buoy unit 111, and the third position is preferably the lower part of the buoy unit 111, and on the other hand, said confluence hole 9 is also communicated with the first end of said first air pipe 3, the second end of the first air pipe 3 is communicated with the air outlet 8 of the container 4, the floating body 1 is placed in the container 4, and the floating unit 111 is carried by the floating wing 112 to float on the liquid 6 and keep the first air hole 2 thereof always upward and not contacted with the liquid surface.

In this embodiment, the first air pipe 3 is preferably a flexible pipe, so that when the floating body 1 floats on the liquid 6, the floating body 1 can move along the driving of the floating body 1 without hindering the floating of the floating body 1, on the other hand, the floating wing 112 increases the buoyancy of the floating unit 111, and improves the stability of the floating unit 111, so that the floating body is not easy to turn over, so that the floating body 1 can always float on the liquid 6, and keeps the first air hole 2 thereof always upward and not in contact with the liquid surface, thereby the gas gathered through the first air hole 2 is difficult to bring the liquid 6 into the confluence hole 9, and the gas can be discharged along with the first air pipe 3, so that no matter how the container 4 rocks, the floating body 1 always floats on the liquid surface, and can always keep the orientation of the first air hole 2, so as to avoid the confluence hole 9 from being filled with the liquid 6, even if the exhaust port 8 of the container 4 is always open, there is no substantial liquid 6 overflow. The floating body 1 is less prone to tipping over than in the first embodiment, which in another way reduces the chance of the first air hole 2 being filled with liquid 6.

On the other hand, in order to further ensure that the liquid 6 cannot penetrate into the confluence recess 9, in a preferred embodiment, the pressure-release vent assembly further comprises: a pressure valve 11, wherein the pressure valve 11 is disposed in the confluence cavity 9, and timely closes the first air hole 2, and as shown in fig. 8, the pressure valve 11 comprises: the valve 12 is elastically supported by the spring 14 to form a seal against the first air hole 2 in the confluence cavity 9, and the valve 12 is opened only when the pressure in the container 4 is greater than the elastic force of the spring 14 so as to discharge air pressure into the first air hole 2, thereby ensuring that the first air hole 2 is temporarily sealed when the pressure in the container 4 is not up to a rated value, and preventing the liquid 6 from being carried out of the exhaust port 8 after penetrating into the confluence cavity 9. In this embodiment, the first position of the first air hole 2 provided on the floating unit 111 is preferably the position covered by the valve 12.

Wherein, in order to better stabilize the elastic closing mechanism of the pressure valve 11, in another preferred embodiment, the pressure valve 11 comprises: the valve 12, the bracket 13, the spring 14 and the pillar 15, the bracket 13 is fixed in the confluence cavity 9, the pillar 15 is fixed on the bracket 13, the spring 14 is sleeved on the pillar 15, the valve 12 is provided with a guide port 16 for the insertion of the pillar 15 and the matching of the valve 12 and the spring 14, so as to support the valve 12 to elastically lift along the pillar 15, so as to abut against the first air hole 2 to form a seal in the confluence cavity 9, and the valve 12 is opened only when the pressure in the container 4 is greater than the elastic force of the spring 14, so as to allow the first air hole 2 to discharge air pressure, thereby ensuring that the first air hole 2 is temporarily sealed when the pressure in the container 4 is less than a rated value, and preventing the liquid 6 from being taken out of the exhaust port 8 after penetrating into the confluence cavity 9. In this embodiment, the first position of the first air hole 2 provided on the floating unit 111 is preferably the position covered by the valve 12. Therefore, the valve 12 is prevented from shaking or being stuck when being lifted, and the first air hole 2 is further ensured to be closed timely.

It should be noted that, as shown in fig. 6, the floating unit 111 has a certain thickness, but in other embodiments, the floating unit 111 may be hollow, as shown in fig. 8 to 10, so that the floating effect is better, and therefore, the thickness of the floating unit 111 is not limited in this embodiment, and those skilled in the art can select/combine the floating unit according to actual situations.

(III)

In order to prevent the reaction liquid 6' in the container 4 from spilling over under the condition that the exhaust port 8 is normally open, as shown in fig. 1, the third aspect of the present invention further provides a self-heating device, which comprises: a pressure-release exhaust assembly, a container 4, a reaction liquid 6', and a heat source body 7, wherein the pressure-release exhaust assembly comprises: a floating body 1, a first air pipe 3, wherein the floating body 1 is preferably made of at least one of the existing materials that are easily floated on liquid 6, such as polymer materials, such as foam plastics, polyester fibers, etc. or wood, so as to provide sufficient buoyancy, in this embodiment, the floating body 1 is preferably made of foam plastics, so as to make the floating body 1 mostly float on the liquid 6, wherein the floating body 1 is provided with a first air hole 2 at a first position, and a confluence hole 9 communicated with the first air hole 2 at a second position, wherein the floating body 1 comprises the outer surface of the floating body 1 at the first position, and the second position is preferably the inside of the floating body 1, and on the other hand, the confluence hole 9 is communicated with the first end of the first air pipe 3, as shown in fig. 1, wherein the container 4 is provided with a cap 5 for opening the container 4, placing the floating body 1 in a container 4, wherein the floating body 1 at least partially floats in liquid 6, and the second end of the first air pipe 3 is communicated with an air outlet 8 of the container 4; the heat source body 7 is placed in the inner cavity of the container 4, the inner cavity of the container 4 is filled with a proper amount of reaction liquid 6 'to promote the heat source body 7 to release heat reaction, and the shape of the inner cavity of the container 4 is matched, so that when the container 4 is turned over at any angle, the floating body 1 still at least partially floats in the reaction liquid 6'.

In this embodiment, the container 4 may be formed in a disposable package without the cap 5, so that the cap 5 is provided in this embodiment to facilitate replacement of the heat source 7 and replenishment of the reaction solution 6', and to facilitate recycling, without limitation, and persons skilled in the art may perform other replacement or combination embodiments known in the art according to actual use and specific situation of the product, and thus all of them fall within the scope of the disclosure of this embodiment.

Under this embodiment, this first trachea 3 is the preferred hose, thereby be convenient for floating body 1 and float in reaction liquid 6' when, can be in the same direction as this drive of floating body 1 and remove, do not hinder floating body 1's floating, thereby make this floating body 1 float on reaction liquid 6' all the time, and converge gaseous entering this cave 9 that converges through this first gas pocket 2, and discharge by first trachea 3, it is visible no matter how this container 4 rocks, this floating body 1 will float in reaction liquid 6' liquid level all the time, in order to avoid converging cave 9 and poured into liquid 6, even if the gas vent 8 of this container 4 is always open, also can not be a large amount of reaction liquid 6' overflow.

In order to better prevent the reaction solution 6' from being poured into the confluence hole 9, in a preferred embodiment, the first air holes 2 at the position of the liquid surface of the reaction solution 6' are prevented from being soaked by water by reducing the diameter of the first air holes 2 to match the tension of the reaction solution 6' to the liquid 6.

It should be noted that the term "overflowing reaction liquid 6" in the present invention is used only to refer to the liquid 6 used for floating the floating body 1, and does not include the reaction liquid 6' after evaporation or other condensation, and the purpose of the reaction liquid 6' is only to prevent the reaction liquid 6' contained in the container 4 from spilling out due to shaking of the container 4.

On the other hand, in order to further ensure that the reaction liquid 6' cannot penetrate into the confluence recess 9, in a preferred embodiment, the pressure release exhaust assembly further comprises: a pressure valve 11, wherein the pressure valve 11 is disposed in the confluence cavity 9, and timely closes the first air hole 2, and as shown in fig. 3 and 4, the pressure valve 11 comprises: a valve 12, a bracket 13 and a spring 14, wherein the bracket 13 is fixed in the confluence cavity 9 for supporting the spring 14 connected with the valve 12, the valve 12 is elastically supported by the spring 14 to form a seal against the first air hole 2 in the confluence cavity 9, and the valve is opened only when the pressure in the container 4 is larger than the elastic force of the spring 14 to discharge the air pressure from the first air hole 2, thereby ensuring that the first air hole 2 is temporarily sealed when the pressure in the container 4 is not up to a rated value, and avoiding the reaction liquid 6' from being carried out of the exhaust port 8 after penetrating into the confluence cavity 9. In the embodiment, as shown in fig. 3, the first position of the first air hole 2 provided on the floating body 1 is preferably a position which can be covered by the valve 12.

Wherein, in order to better stabilize the elastic closing mechanism of the pressure valve 11, in another preferred embodiment, as shown in fig. 5, the pressure valve 11 comprises: the valve 12, the bracket 13, the spring 14 and the pillar 15, the bracket 13 is fixed in the confluence cavity 9, the pillar 15 is fixed on the bracket 13, the spring 14 is sleeved on the pillar 15, the valve 12 is provided with a guide port 16 for the insertion of the pillar 15 and the matching of the valve 12 and the spring 14, so as to support the valve 12 to elastically lift along the pillar 15, so as to abut against the first air hole 2 to form a seal in the confluence cavity 9, and the valve 12 is opened only when the pressure in the container 4 is greater than the elastic force of the spring 14, so as to allow the first air hole 2 to discharge air pressure, thereby ensuring that the first air hole 2 is temporarily sealed when the pressure in the container 4 is less than a rated value, and avoiding the reaction liquid 6' from being brought out of the exhaust port 8 after penetrating into the confluence cavity 9. In the embodiment, as shown in fig. 5, the first position of the first air hole 2 provided on the floating body 1 is preferably a position which can be covered by the valve 12. Therefore, the valve 12 is prevented from shaking or being stuck when being lifted, and the first air hole 2 is further ensured to be closed timely.

In order to further ensure that the reaction liquid 6' cannot penetrate into the confluence cavity 9, in another preferred embodiment, the pressure-release exhaust assembly further comprises: a vent assembly 71, wherein the vent assembly 71 may be disposed simultaneously with the pressure valve 11 or separately, and the present embodiment is not limited thereto, as shown in fig. 11 and 12, wherein the vent assembly 71 includes: the second air pipe 72 is connected with the air outlet 8 at the outer side of the container 4 to be communicated with the first air pipe 3, a second air hole 74 is formed in the pipe wall of the second position of the second air pipe 72, and the blocking plate 73 is connected with the air pipe through the spring 14, so that the second air hole 74 is elastically blocked by the blocking plate 73 at the second position of the air pipe.

Therefore, when the internal pressure of the container 4 reaches a certain degree, the blocking plate 73 is propped away to release the air pressure, and once the internal pressure of the container 4 is stabilized within a preset range, the blocking plate 73 is driven by the spring 14 to return to the original position, so that the sealing function is achieved, the first air pipe 3 is in a closed state, the reaction liquid 6 'cannot enter the confluence hole 9 through the first air hole 2 due to the pressure relationship in the pipe, and meanwhile, the internal reaction liquid 6' is prevented from seeping out, and the carrying is facilitated. It is worth mentioning that the control of the inner pressure of the container 4 can be arranged in accordance with the adjustment of the spring force of the spring 14.

It should be noted that, as shown in fig. 1 to 2, the floating body 1 is a sphere having a certain thickness, but in other embodiments, the floating body 1 may be a hollow sphere, and as shown in fig. 7, the floating effect can be achieved by reducing the size of the first air holes 2 to match the tension of the reaction liquid 6', and therefore, the thickness of the floating body 1 is not limited in this embodiment, and those skilled in the art can select and combine the floating bodies according to actual situations.

(IV)

In order to achieve the above object, according to a fourth aspect of the present invention, there is also provided a self-heating apparatus, comprising: a pressure-release exhaust assembly, a container 4, a reaction liquid 6', and a heat source body 7, wherein the pressure-release exhaust assembly comprises: a floating body 1, a first gas pipe 3, wherein the floating body 1 comprises: a float unit 111, a float wing 112, wherein said float wing 112 is preferably made of at least one of the existing materials which are easily floated on the reaction liquid 6', such as polymer materials, such as foam plastics, polyester fibers, etc. or wood, so as to provide sufficient buoyancy, and in this embodiment, preferably made of foam plastics, the float wing 112 is made so as to make the most of the float wing 112 float on the reaction liquid 6', wherein the float unit is provided with a first air hole 2 at a first position, and a confluence hole 9 communicated with the first air hole 2 at a second position, and said float wing 112 is provided at a third position of said float unit 111, as shown in fig. 6, wherein the first position of the float unit comprises the upper outer surface of the float unit 111, and the second position is preferably the inner part of the float unit 111, and the third position is preferably the lower part of the float unit 111, and on the other hand, said confluence hole 9 is also communicated with the first end of said first air pipe 3, the second end of the first air pipe 3 is communicated with the exhaust port 8 of the container 4, the floating body 1 is placed in the container 4, so that when the inner cavity of the container 4 is filled with a proper amount of reaction liquid 6 'to promote the heat source body 7 to release heat reaction, the floating body can be matched with the shape of the inner cavity of the container 4, and the floating unit 111 can be borne by the floating wings 112 to float in the reaction liquid 6' and keep the first air holes 2 of the floating body upwards all the time without contacting with the liquid level at any overturning position of the container 4.

In this embodiment, the first air pipe 3 is preferably a flexible pipe, so that when the floating body 1 floats in the reaction liquid 6', the floating body can move along the driving of the floating body 1 without hindering the floating of the floating body 1, and on the other hand, the floating wing 112 increases the buoyancy of the floating unit 111, and improves the stability of the floating unit 111, so that the floating body 1 is not easy to turn over, so that the floating body 1 can always float on the reaction liquid 6', and keeps the first air hole 2 thereof always upward and not in contact with the liquid surface, therefore, the gas gathered through the first air hole 2 is not easy to bring in the reaction liquid 6 'after entering the confluence hole 9, and the gas can be discharged along with the first air pipe 3, so that no matter how the container 4 rocks, the floating body 1 always floats on the liquid surface, and always keeps the orientation of the first air hole 2, so as to avoid the confluence hole 9 from being filled with the reaction liquid 6', and even if the exhaust port 8 of the container 4 is always open, and a large amount of reaction solution 6' does not overflow. Compared with the third embodiment, the floating body 1 is less prone to overturn, so that the probability that the first air holes 2 are filled with the reaction liquid 6' is reduced in another way.

On the other hand, in order to further ensure that the reaction liquid 6' cannot penetrate into the confluence recess 9, in a preferred embodiment, the pressure release exhaust assembly further comprises: a pressure valve 11, wherein the pressure valve 11 is disposed in the confluence cavity 9, and timely closes the first air hole 2, and as shown in fig. 8, the pressure valve 11 comprises: a valve 12, a bracket 13 and a spring 14, wherein the bracket 13 is fixed in the confluence cavity 9 for supporting the spring 14 connected with the valve 12, the valve 12 is elastically supported by the spring 14 to form a seal against the first air hole 2 in the confluence cavity 9, and the valve is opened only when the pressure in the container 4 is larger than the elastic force of the spring 14 to discharge the air pressure from the first air hole 2, thereby ensuring that the first air hole 2 is temporarily sealed when the pressure in the container 4 is not up to a rated value, and avoiding the reaction liquid 6' from being carried out of the exhaust port 8 after penetrating into the confluence cavity 9. In this embodiment, the first position of the first air hole 2 provided on the floating unit 111 is preferably the position covered by the valve 12.

Wherein, in order to better stabilize the elastic closing mechanism of the pressure valve 11, in another preferred embodiment, the pressure valve 11 comprises: the valve 12, the bracket 13, the spring 14 and the pillar 15, the bracket 13 is fixed in the confluence cavity 9, the pillar 15 is fixed on the bracket 13, the spring 14 is sleeved on the pillar 15, the valve 12 is provided with a guide port 16 for the insertion of the pillar 15 and the matching of the valve 12 and the spring 14, so as to support the valve 12 to elastically lift along the pillar 15, so as to abut against the first air hole 2 to form a seal in the confluence cavity 9, and the valve 12 is opened only when the pressure in the container 4 is greater than the elastic force of the spring 14, so as to allow the first air hole 2 to discharge air pressure, thereby ensuring that the first air hole 2 is temporarily sealed when the pressure in the container 4 is less than a rated value, and avoiding the reaction liquid 6' from being brought out of the exhaust port 8 after penetrating into the confluence cavity 9. In this embodiment, the first position of the first air hole 2 provided on the floating unit 111 is preferably the position covered by the valve 12. Therefore, the valve 12 is prevented from shaking or being stuck when being lifted, and the first air hole 2 is further ensured to be closed timely.

It should be noted that, as shown in fig. 6 to 6, the floating unit 111 has a certain thickness, but in other embodiments, the floating unit 111 may be hollow, as shown in fig. 8 to 10, and a good floating effect can be achieved, so the thickness of the floating unit 111 is not limited in this embodiment, and those skilled in the art can select/combine the floating unit according to actual situations.

In conclusion, through the utility model provides a this from heating device and pressure release exhaust subassembly thereof can prevent that reaction liquid 6' in the container 4 from spilling to the excessive under the 8 condition of normally opening of gas vent to keep the seal in the container 4 to a certain extent, be suitable for to use in all kinds of outdoor removal environment through the book, has expanded suitable scene, and has improved convenience of use, security.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the appended claims and their full scope and equivalents, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

In addition, various different implementation manners of the embodiments of the present invention can be combined arbitrarily, and as long as it does not violate the idea of the embodiments of the present invention, it should be considered as the disclosure of the embodiments of the present invention.

Claims

1. A pressure relief vent assembly for venting internal pressure in a container, comprising: the floating body is arranged in the container, at least part of the floating body floats on liquid, and the second end of the first air pipe is communicated with an air outlet of the container.

2. The pressure relief vent assembly of claim 1, further comprising: the pressure valve is arranged in the confluence hole and timely seals the first air hole, wherein the pressure valve comprises: the valve comprises a valve body, a support and an elastic piece, wherein the support is fixed in the confluence hole and is used for supporting the elastic piece connected with the valve body, and the valve body is elastically supported by the elastic piece to open/close the first air hole at proper time.

3. A pressure relief vent assembly for venting internal pressure in a container, comprising: a floating body, a first air pipe, wherein the floating body includes: the floating device comprises a buoy unit and a floating wing, wherein a first air hole is formed in a first position of the buoy unit, a confluence hole communicated with the first air hole is formed in a second position of the buoy unit, the floating wing is arranged at a third position of the buoy unit, the confluence hole is communicated with a first end of a first air pipe, the floating body is placed in a container, at least part of the floating body floats on liquid and keeps the orientation of the first air hole, and a second end of the first air pipe is communicated with an air outlet of the container.

4. The pressure relief vent assembly of claim 3, further comprising: the pressure valve is arranged in the confluence hole and timely seals the air channel of the first air pipe, wherein the pressure valve comprises: the valve comprises a valve body, a support and an elastic piece, wherein the support is fixed in the confluence hole and is used for supporting the elastic piece connected with the valve body, and the valve body is elastically supported by the elastic piece to open/close the first air hole at proper time.

5. A self-heating apparatus, characterized by comprising: the device comprises a pressure release exhaust assembly, a container, reaction liquid and a heat source body, wherein the pressure release exhaust assembly comprises: the floating body is arranged in the inner cavity of the container, and the second end of the first air pipe is communicated with an air outlet of the container; the heat source body is placed in the inner cavity of the container, and the inner cavity of the container is filled with a proper amount of reaction liquid to promote the heat source body to release heat reaction, and the floating body is at least partially floated in the reaction liquid when the container is turned over.

6. The self-heating apparatus according to claim 5, characterized by further comprising: the pressure valve is arranged in the confluence hole and timely seals the first air hole, wherein the pressure valve comprises: the valve comprises a valve body, a support and an elastic piece, wherein the support is fixed in the confluence hole and is used for supporting the elastic piece connected with the valve body, and the valve body is elastically supported by the elastic piece to open/close the first air hole at proper time.

7. The self-heating apparatus according to claim 5, characterized by further comprising: a vent assembly, comprising: the second trachea, elastic component, shutoff board, wherein the second trachea in the container outside be connected with the gas vent in order with first trachea intercommunication, be equipped with the second gas pocket on the second trachea second position department pipe wall, the shutoff board pass through the elastic component with the trachea is connected, so that the shutoff board is in trachea second position department elasticity seals the second gas pocket.

8. A self-heating apparatus, characterized by comprising: the device comprises a pressure release exhaust assembly, a container, reaction liquid and a heat source body, wherein the pressure release exhaust assembly comprises: a floating body, a first air pipe, wherein the floating body includes: the floating body is placed in the inner cavity of the container, and the second end of the first air pipe is communicated with an air outlet of the container; the heat source body is placed in an inner cavity of the container, a proper amount of reaction liquid is filled in the inner cavity of the container, the heat source body is promoted to release heat reaction, and the floating body is at least partially floated in the reaction liquid and keeps the orientation of the first air hole when the container is turned over.

9. The self-heating apparatus according to claim 8, characterized by further comprising: the pressure valve is arranged in the confluence hole and timely seals the first air hole, wherein the pressure valve comprises: the valve comprises a valve body, a support and an elastic piece, wherein the support is fixed in the confluence hole and is used for supporting the elastic piece connected with the valve body, and the valve body is elastically supported by the elastic piece to open/close the first air hole at proper time.

10. The self-heating apparatus according to claim 8, characterized by further comprising: a vent assembly, comprising: the second trachea, elastic component, shutoff board, wherein the second trachea in the container outside be connected with the gas vent in order with first trachea intercommunication, be equipped with the second gas pocket on the second trachea second position department pipe wall, the shutoff board pass through the elastic component with the trachea is connected, so that the shutoff board is in trachea second position department elasticity seals the second gas pocket.