An automatic pressure relief valve

Abstract

The utility model discloses an automatic pressure relief valve, including wine lance cover, be equipped with countersunk hole on wine lance cover, be provided with pressure relief fixed plate in the head space of countersunk hole, be provided with the vent hole of communicating with outside on pressure relief fixed plate, and the hole bottom of countersunk hole is provided with the through -hole of communicating with the inside of wine lance cover, be provided with pressure relief structure in the countersunk hole, pressure relief structure includes the sealing post of installation in the countersunk hole, the circumferential surface of sealing post is equipped with the bearing plate, the lower surface of bearing plate is provided with the sealing ring, the lower surface of pressure relief fixed plate and the upper surface of bearing plate between are provided with the spring of around being equipped in the outside of sealing post and being in compression state, the utility model discloses can realize automatic pressure relief, avoid overpressure danger, when the air pressure exceeds the setting force of spring, automatically open pressure relief function. Effectively prevent the dangerous situation of the rupture of the barrel body even the explosion due to the excessively high air pressure in the barrel from happening, guarantee the safety of surrounding personnel and equipment.

Description

Technical Field

[0001] This utility model relates to the field of pressure relief valve technology, and in particular to an automatic pressure relief valve. Background Technology

[0002] A beer keg is a device used to store alcoholic beverages. The keg is pressurized to maintain the freshness and taste of the beverage for a certain period. However, beer still contains a small amount of fermentable sugars. Yeast continues to ferment, consuming the sugars and producing carbon dioxide gas, causing the pressure inside the keg to gradually increase. This is because during fermentation, yeast breaks down sugars into alcohol and carbon dioxide. The carbon dioxide produced increases the total amount of gas inside the keg, thus increasing the pressure. When the pressure exceeds the keg's maximum withstand capacity, it may cause the keg to rupture or even explode, posing a serious safety threat to nearby personnel and equipment.

[0003] Therefore, in actual production, it is necessary to manually monitor the air pressure inside the barrel in real time and take manual depressurization measures. If negligence or untimely monitoring occurs, it can easily lead to overpressure hazards.

[0004] Based on this, the inventors proposed an automatic pressure relief valve to solve the above problems. Utility Model Content

[0005] To address the aforementioned problems, this invention provides an automatic pressure relief valve.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] An automatic pressure relief valve includes a wine spear cap with a countersunk hole. A pressure relief fixing plate is provided in the head space of the countersunk hole, and a vent hole communicating with the outside is provided on the pressure relief fixing plate. A through hole communicating with the inside of the wine spear cap is opened at the bottom of the countersunk hole. A pressure relief structure is provided in the countersunk hole, including a sealing post installed in the countersunk hole. A support plate is provided on the circumferential surface of the sealing post, and a sealing ring is provided on the lower surface of the support plate. A spring wrapped around the outside of the sealing post and in a compressed state is provided between the lower surface of the pressure relief fixing plate and the upper surface of the support plate.

[0008] A further feature is provided: the bottom of the sealing column is provided with a boss that can be inserted into the through hole.

[0009] The design is further configured such that the through hole and the boss are adapted to each other and both are inverted conical designs.

[0010] A further configuration is provided: an annular groove is provided at the middle position of the inner wall of the pressure relief fixing plate, and a top block is provided at the top of the sealing column and inserted into the annular groove. The top block of the sealing column cooperates with the annular groove of the pressure relief fixing plate to play a guiding role.

[0011] The ventilation holes are further configured such that multiple holes are evenly distributed on the inner wall of the annular groove.

[0012] The design further includes: a plurality of evenly distributed petal-shaped grooves at the center of the upper surface of the pressure relief fixing plate, the number of grooves being the same as the number of vent holes, and each groove corresponding to and communicating with each vent hole.

[0013] The further configuration is that both the working ends of the boss and the top block are provided with rounded corners.

[0014] The spring is further configured such that one end is fixedly connected to the pressure relief plate, and the other end abuts against the bearing plate.

[0015] A further setting is made: the sealing ring is a rubber sealing ring or a silicone sealing ring.

[0016] The further configuration is as follows: the wine spear cap includes a cap body and a mounting block disposed on the cap body and integrally formed with the cap body, and the countersunk hole is formed on the cap body and the mounting block.

[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0018] This invention enables automatic pressure relief, preventing the danger of overpressure. When the air pressure exceeds the set force of the spring, the pressure relief function is automatically activated. This effectively prevents the tank from rupturing or even exploding due to excessive air pressure inside, ensuring the safety of surrounding personnel and equipment. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional schematic diagram of the pressure relief structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the pressure relief structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the sealing column in this utility model;

[0024] Figure 5 This is a schematic diagram of the pressure relief fixing plate in this utility model;

[0025] Figure 6 This is another schematic diagram of the pressure relief fixing plate in this utility model;

[0026] Figure 7 This is a schematic diagram of the overall structure of another embodiment of the present utility model;

[0027] Figure 8 This is a cross-sectional schematic diagram of the pressure relief structure in another embodiment of the present invention.

[0028] Reference numerals: 1. Spear cap; 2. Cap body; 3. Mounting block; 4. Countersunk hole; 5. Through hole; 6. Sealing post; 7. Boss; 8. Pressure relief fixing plate; 9. Annular groove; 10. Top block; 11. Vent hole; 12. Groove; 13. Bearing plate; 14. Spring; 15. Sealing ring. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Example

[0033] Reference Figures 1-6The present invention discloses an automatic pressure relief valve, including a wine spear cap 1, and the wine spear cap 1 includes a cap body 2 and an installation block 3 disposed on the top of the cap body 2 and integrally formed with the cap body 2. A countersunk hole 4 is vertically provided on the wine spear cap 1, which is opened on the cap body 2 and the installation block 3. A through hole 5 communicating with the inside of the wine spear cap 1 is provided at the bottom of the countersunk hole 4.

[0034] A pressure relief structure is provided in the countersunk hole 4. Specifically, the pressure relief structure includes a sealing post 6 installed in the countersunk hole 4. The bottom of the sealing post 6 is provided with a boss 7 that is inserted into the through hole 5. Furthermore, the through hole 5 and the boss 7 are adapted to each other and both are inverted conical designs.

[0035] A pressure relief fixing plate 8, bolted to the wine spear cap 1, is provided in the head space of the countersunk hole 4. An annular groove 9 is provided in the middle of the inner wall of the pressure relief fixing plate 8, which inserts into the countersunk hole 4. A top block 10, inserted into the annular groove 9, is provided on the top of the sealing column 6. The top block 10 of the sealing column 6 cooperates with the annular groove 9 of the pressure relief fixing plate 8, serving as a guide to prevent the sealing column 6 from tilting during operation, ensuring the stability and reliability of the pressure relief structure, and extending the service life of the device. Furthermore, both the boss 7 and the top block 10 have rounded corners at their functional ends.

[0036] Multiple evenly distributed vent holes 11 are provided on the inner wall of the annular groove 9. The multiple vent holes 11 are connected to the outside. Specifically, multiple evenly distributed petal-shaped grooves 12 are provided at the center of the upper surface of the pressure relief fixing plate 8. The number of grooves 12 is the same as the number of vent holes 11, and each groove 12 corresponds to and communicates with each vent hole 11, so as to achieve the purpose of connecting the vent holes 11 to the outside.

[0037] A bearing plate 13 is provided on the circumferential surface of the sealing column 6, and a gap is provided between the bearing plate 13 and the countersunk hole 4. The bearing plate 13 is located at the lower part of the sealing column 6 and on the upper side of the boss 7. A spring 14 is provided between the lower surface of the pressure relief fixing plate 8 and the upper surface of the bearing plate 13, which is wound around the outside of the sealing column 6. Specifically, when the spring 14 is in a compressed state, one end is fixedly connected to the pressure relief fixing plate 8, and the other end abuts against the bearing plate 13.

[0038] Furthermore, a sealing ring 15 is provided on the lower surface of the support plate 13. Under normal conditions, the support plate 13 bears the return force of the spring 14, thereby pressing the sealing ring 15 against the bottom of the countersunk hole 4 to achieve a sealing effect; and the sealing ring 15 is a rubber sealing ring 15 or a silicone sealing ring 15.

[0039] The working principle and beneficial effects of this utility model are as follows:

[0040] After the pressure relief structure is installed and fixed on the barrel cap 1, the sealing column 6 is subjected to the elastic force of the spring 14, which in turn causes the bearing plate 13 of the sealing column 6 to be subjected to the elastic force of the spring 14, pressing the sealing ring 15 tightly into the countersunk hole 4, thus achieving a sealing effect and preventing the barrel from leaking air. When the barrel is pressurized, the air pressure inside the barrel gradually increases, causing the sealing column 6 and the silicone ring of the sealing column 6 to be subjected to the pushing force of the air pressure (this pushing force is opposite to the force of the spring 14). When the pushing force of the air pressure inside the barrel is greater than the force of the spring 14, the pushing force of the air pressure will overcome the elastic force of the spring 14, driving the sealing column 6 to move away from the through hole 5, and at the same time driving the sealing ring 15 to move away from the through hole 5.

[0041] At this time, gaps will form between the through hole 5 and the boss 7, and between the sealing ring 15 and the bottom of the countersunk hole 4, forming a pressure relief passage composed of the through hole 5, the countersunk hole 4, the vent hole 11, and the groove 12. The air pressure inside the barrel will be released through the pressure relief passage and discharged through the multiple vent holes 11 on the pressure relief fixing plate 8. When the pressure discharged from the barrel is lower than the force of the spring 14, the pressure relief valve will close, and the force of the spring 14 will continue to drive the sealing column 6 to reset, squeezing the sealing ring 15 on the sealing column 6 to continue sealing and achieve the pressure holding function.

[0042] In summary, this invention enables automatic pressure relief, preventing overpressure hazards. When the air pressure exceeds the set force of spring 14, the pressure relief function is automatically activated. This effectively prevents the barrel from rupturing or even exploding due to excessive internal pressure, ensuring the safety of surrounding personnel and equipment. The protrusion 7 at the bottom of the sealing column 6 and the through hole 5 are designed in an inverted conical shape, forming a double-sealing structure with the tight fit of the sealing ring 15. Under normal conditions, this effectively prevents the barrel from leaking air, ensuring the freshness and taste of the wine inside.

[0043] Reference Figures 7-8 In another embodiment, the mounting block 3 integrally formed by the cover 2 is horizontally installed on the outer side of the cover 2, and the countersunk hole 4 is horizontally opened on the cover 2 and the mounting block 3. In this embodiment, only the installation position and direction of the pressure relief structure are different. Its structure, function and principle are the same as the previous embodiment, and will not be described in detail here.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic pressure relief valve, comprising a wine spear cap (1), characterized in that: The wine spear cap (1) is provided with a countersunk hole (4), and a pressure relief fixing plate (8) is provided in the head space of the countersunk hole (4). The pressure relief fixing plate (8) is provided with a vent hole (11) communicating with the outside. The bottom of the countersunk hole (4) is provided with a through hole (5) communicating with the inside of the wine spear cap (1). A pressure relief structure is provided in the countersunk hole (4). The pressure relief structure includes a sealing column (6) installed in the countersunk hole (4). A bearing plate (13) is provided on the circumferential surface of the sealing column (6). A sealing ring (15) is provided on the lower surface of the bearing plate (13). A spring (14) is provided between the lower surface of the pressure relief fixing plate (8) and the upper surface of the bearing plate (13) and is wound around the outside of the sealing column (6) and is in a compressed state.

2. An automatic pressure relief valve according to claim 1, characterized in that: The bottom of the sealing column (6) is provided with a boss (7) that is inserted into the through hole (5).

3. An automatic pressure relief valve according to claim 2, characterized in that: The through hole (5) is adapted to the boss (7) and both are inverted conical designs.

4. An automatic pressure relief valve according to claim 2, characterized in that: An annular groove (9) is provided in the middle of the inner wall of the pressure relief fixing plate (8), and a top block (10) is provided at the top of the sealing column (6) and inserted into the annular groove (9). The top block (10) of the sealing column (6) cooperates with the annular groove (9) of the pressure relief fixing plate (8) to play a guiding role.

5. An automatic pressure relief valve according to claim 1, characterized in that: The ventilation holes (11) are opened on the inner wall of the annular groove (9), and multiple holes are evenly distributed thereon.

6. An automatic pressure relief valve according to claim 5, characterized in that: The pressure relief fixing plate (8) has multiple evenly distributed petal-shaped grooves (12) at the center of its upper surface. The number of grooves (12) is the same as the number of vent holes (11), and each groove (12) corresponds to and communicates with each vent hole (11).

7. An automatic pressure relief valve according to claim 4, characterized in that: Both the boss (7) and the top block (10) have rounded corners at their working ends.

8. An automatic pressure relief valve according to claim 1, characterized in that: One end of the spring (14) is fixedly connected to the pressure relief fixing plate (8), and the other end abuts against the bearing plate (13).

9. An automatic pressure relief valve according to claim 1, characterized in that: The sealing ring (15) is a rubber sealing ring (15) or a silicone sealing ring (15).

10. An automatic pressure relief valve according to claim 1, characterized in that: The wine spear cap (1) includes a cap body (2) and a mounting block (3) integrally formed on the cap body (2). The countersunk hole (4) is formed on the cap body (2) and the mounting block (3).

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