CN219136352U - Disposable sanitary type spear with safety relief valve - Google Patents

Abstract

The utility model discloses a disposable sanitary beer spear with a safety pressure release valve, and relates to the structural field of barreled beer containers. The beer barrel is low in processing cost, easy to assemble and good in using effect, and can effectively solve the problem that the beer barrel is likely to explode due to overlarge internal pressure. The safety relief valve is installed on the closed roof of the wine spear, the accommodating hole is formed in the closed roof, the safety relief valve comprises a valve seat with a large upper part and a small lower part and a reset spring, the valve seat is accommodated in the accommodating hole, the top end of the reset spring is fixedly connected with the valve seat, the bottom end of the reset spring is fixedly installed in a short pipe of the wine spear, and the valve seat is pulled by the reset spring. The problem that the beer barrel is possibly exploded due to overlarge internal pressure can be effectively solved, and no sanitary dead angle exists.

Description

Disposable sanitary type spear with safety relief valve

Technical Field

The utility model relates to the structural field of barreled beer containers.

Background

In the field of barreled beer (cask), at present, disposable PET beer casks on the market are becoming more and more popular, and a disposable sanitary beer spear matched with the disposable PET beer casks is mostly shown as a Chinese patent of 'disposable sanitary beer spear' disclosed in 10 and 8 of 2021, and the application number of the Chinese patent is 202110807444.6, and the use process of the disposable sanitary beer spear can be divided into a cleaning state, a filling ending state and a wine selling state.

However, carbonated beverages, especially beer, are highly likely to release large amounts of carbon dioxide during storage and transportation due to temperature or storage and transportation conditions, resulting in increased pressure in the beer keg, and once the pressure is too high, the PET keg may be ruptured and exploded, creating a hazard. However, if the pressure release valve is directly arranged on the wine barrel, the existing production line is required to be greatly changed, the construction difficulty is greatly increased, the position of the pressure release valve is difficult to control, and the structural strength of the barrel body is easy to damage.

Therefore, how to improve the wine spear on the basis of the prior art, the wine spear can ensure that the air pressure in the barrel is in the safe pressure at any time, and the construction cost and the construction difficulty are not excessively increased, so that the technical problem to be solved by the person skilled in the art is solved.

Disclosure of Invention

Aiming at the problems, the utility model provides the disposable sanitary beer spear with the safety relief valve, which has low processing cost, easy assembly and good use effect, and can effectively solve the problem that the beer barrel is possibly exploded due to overlarge internal pressure.

The technical scheme of the utility model is as follows: the safety relief valve is installed on the closed top plate 1031 of the wine spear, a containing hole is formed in the closed top plate 1031, the safety relief valve comprises a valve seat 1 and a reset spring 3, the valve seat 1 is contained in the containing hole, the top end of the reset spring 3 is fixedly connected with the valve seat 1, the bottom end of the reset spring 3 is fixedly installed in a short pipe 103 of the wine spear, and the valve seat 1 is pulled by the reset spring 3.

Further, a sealing gasket 2 is also sleeved on the valve seat 1.

Further, a pair of U-shaped grooves are formed at the bottom opening of the short tube 103, a spring hanging shaft 4 is accommodated in each U-shaped groove, and the bottom end of the return spring 3 is hung on the spring hanging shaft 4.

Further, an annular groove is formed in the spring hanging shaft 4, and the bottom end of the reset spring 3 is hung in the annular groove.

Further, the valve seat 1 is T-shaped, the accommodating hole 1032 is a step hole adapted to the valve seat 1, the upper portion of the accommodating hole 1032 is in clearance fit with the upper portion of the valve seat 1, a gap is left between the lower portion of the accommodating hole 1032 and the lower portion of the valve seat 1, and the sealing gasket 2 is sleeved on the lower portion of the valve seat 1.

When the PET barrel is used, when the air pressure in the barrel does not exceed a set value, such as 5kg, the reset spring can pull the valve seat due to self elasticity, and the sealing gasket on the valve seat is always in a sealing state, so that the PET barrel is kept sealed. When the air pressure in the barrel is overlarge, the valve seat is subjected to overlarge air pressure thrust, the reset spring is stressed and stretched, the valve seat is jacked up, the sealing gasket is not guaranteed to be sealed any more, and air in the barrel can leave the PET barrel through a gap pulled between the valve seat and the accommodating hole, so that the pressure in the barrel is relieved. After the pressure in the barrel becomes smaller, the elastic force of the reset spring returns to the action, and the pressure release valve can be closed again, so that the barrel is always in a pressure stabilizing state, and the problem that the beer barrel is possibly exploded due to overlarge internal pressure can be effectively solved.

More importantly, due to the existence of the sealing gasket, the disposable sanitary type wine spear can still maintain the characteristics of sterility and sanitation after the safety relief valve is added, and no sanitary dead angle exists. In addition, the number of parts in the case is small, so that the novel anti-theft device also has the advantages of simple assembly, convenience in processing and the like.

Drawings

Figure 1 is a schematic view of the structure of the present case,

figure 2 is a schematic structural view of the short pipe in the present case,

figure 3 is a cross-sectional view of the present case taken radially along the center of the spring hanger,

figure 4 is a reference diagram of the state of use of the present case in pressure relief,

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

in the figure, 1 is a valve seat, 2 is a sealing gasket, 3 is a return spring, and 4 is a spring hanging shaft;

101 is the spear lid, 102 is the spear seal seat, 103 is the nozzle stub, 1030 is the wine outlet, 1031 is the closed roof, 1032 is the accommodation hole, 1033 is the U-shaped groove, 104 is the spring, 105 is the spring base, 106 is the long tube.

Detailed Description

In order to clearly illustrate the technical features of the present patent, the following detailed description will make reference to the accompanying drawings.

The disposable sanitary type spear comprises a spear cover 101 and a short tube 103 fixedly arranged in the spear cover 101, wherein a top opening of the short tube 103 is provided with a closed top plate 1031 which is connected with the short tube into a whole and keeps closed, and the bottom of the short tube 103 is open;

specifically, as shown in fig. 1, the disposable hygienic type spear includes a spear cap 101, a spear seal seat 102 provided inside the spear cap 101, a short tube 103, a spring 104, a spring base 105, and a long tube 106 interfacing with the short tube 103;

the outer side of the spear cover 101 is provided with an annular slot matched with the bung hole of the PET barrel, and the inner side of the spear cover 101 is of a hollow structure;

the spring base 105 is fixedly connected with the bottom of the spear cover 101, and the short pipe 103 is arranged in the spring base 105 in a penetrating way and is fixedly connected with the spring base 105; the spear sealing seat 102 is slidably sleeved on the upper part of the short pipe 103, an annular rubber ring is fixedly connected to the top surface of the spear sealing seat 102, and the spring 104 is sleeved on the short pipe 103 in an empty mode and is propped between the sealing seat 102 and the spring base 105; the spring base 105 is provided with a plurality of air inlets; the top opening of the short pipe 103 is closed, and the upper part of the side wall of the short pipe is provided with a wine outlet 1030; the top end of the long tube 106 is in butt joint with the bottom end of the short tube 103, and the bottom end of the long tube 106 extends into the bottom of the wine barrel.

When no external force exists, the rubber ring is propped between the top of the short tube and the top opening of the spear cover under the action of the spring 104, so that the spear cover, the rubber ring and the short tube are kept sealed.

Thus, when the bottle is in a factory state after filling, the spear sealing seat 102 is not subjected to external force, the spear cover 101, the rubber ring and the short pipe 103 are kept sealed under the action of the springs, and gas or liquid inside and outside the PET barrel does not circulate.

When the user uses the beer in the beer selling state, the PET barrel is arranged vertically, the beer bottle sealing seat 102 is extruded by external force (such as a distributor) and moves relative to the short pipe 103, and then pressurized gas, usually CO2, can enter the PET barrel from the air inlet hole along the gap between the rubber ring and the beer bottle cover 101, so that beer in the PET barrel flows outwards from the beer outlet hole 1030 under the action of the pressure.

As shown in fig. 1-5, the safety relief valve is installed on a closed top plate 1031 of the spear, a containing hole is formed in the closed top plate 1031, the safety relief valve comprises a valve seat 1 with a large upper part and a small lower part and a reset spring 3, the valve seat 1 is contained in the containing hole, the top end of the reset spring 3 is fixedly connected with the valve seat 1, the bottom end of the reset spring 3 is fixedly installed in a short pipe 103 of the spear, and the valve seat 1 is pulled by the reset spring 3, so that the valve seat 1 keeps close to the movement trend of the closed top plate 1031. Therefore, the pressure relief valve is arranged at the top opening of the short pipe, and the pressure relief is carried out when the pressure in the barrel is overlarge, so that the problem that the beer barrel is possibly exploded due to overlarge internal pressure is effectively solved.

In addition, the structure of the scheme is optimized, the processing and assembling sequence of the original wine spear and the PET wine barrel is not required to be damaged, all parts of the safety relief valve are processed just before the short pipe is assembled, and the parts are assembled in the short pipe, so that the processing cost is low, and the assembly is easy.

A sealing gasket 2 is also sleeved on the valve seat 1. The sealing gasket 2 can be pressed between the sealing gasket and the containing hole 1032 by the valve seat 1 in a normal state, so that the pressure relief valve has better sealing effect when being closed.

The valve seat 1 and the annular sealing gasket 2 are of a split structure, glue is not contained, and the sanitation effect is not affected.

A pair of U-shaped grooves are formed in the bottom opening of the short pipe 103, a spring hanging shaft 4 is accommodated in each U-shaped groove, and the bottom end of the return spring 3 is hung on the spring hanging shaft 4. Therefore, the assembly of the spring becomes simpler and more convenient, and the spring is pulled out from the bottom opening of the short pipe and hooked on the spring hanging shaft after the valve seat is hooked and the short pipe is penetrated.

The spring hanging shaft 4 is further provided with an annular groove, and the bottom end of the return spring 3 is hung in the annular groove. So that no unexpected deflection occurs after the installation of the return spring 3 to ensure the stability of the tension of the return spring 3. The problem that the tension of the spring to the valve plate changes after the axis of the spring deflects, so that the pressure relief effect is affected is avoided.

As shown in fig. 5, the valve seat 1 is T-shaped, the accommodating hole 1032 is a step hole adapted to the valve seat 1, the upper portion of the accommodating hole 1032 is in clearance fit with the upper portion of the valve seat 1, a gap is left between the lower portion of the accommodating hole 1032 and the lower portion of the valve seat 1, and the sealing gasket 2 is sleeved on the lower portion of the valve seat 1. Therefore, after assembly, the sealing gasket 2 forms high-efficiency and good sealing between the valve seat 1 and the step surface of the accommodating hole, and the sealing gasket cannot fall off due to relative movement of the valve seat 1 and the step surface of the accommodating hole, so that the sealing performance of the position of the sealing gasket is further improved through the sealing gasket 2, the disposable sanitary type wine spear can still keep the characteristics of sterility and sanitation after the safety relief valve is added, and no sanitary dead angle exists.

The return spring 4 is a stainless steel spring. Food grade stainless steel may be used.

While there have been described what are believed to be the preferred embodiments of the present utility model, it will be apparent to those skilled in the art that many more modifications are possible without departing from the principles of the utility model.

Claims (5)

1. The utility model provides a disposable sanitary wine spear with safety relief valve, its characterized in that, safety relief valve installs on the sealed roof (1031) of wine spear, set up accommodation hole (1032) in sealed roof (1031), safety relief valve includes disk seat (1) and reset spring (3) of big-end-up, disk seat (1) holding in accommodation hole (1032), the top fixed connection of reset spring (3) disk seat (1) to in nozzle stub (103) of reset spring (3), pull disk seat (1) through reset spring (3).

2. Disposable hygienic wine spear with safety relief valve according to claim 1, characterized in that a sealing gasket (2) is also fitted over the valve seat (1).

3. The disposable hygienic wine spear with the safety pressure release valve according to claim 1, wherein a pair of U-shaped grooves are formed in the bottom opening of the short pipe (103), a spring hanging shaft (4) is accommodated in each U-shaped groove, and the bottom end of the return spring (3) is hung on the spring hanging shaft (4).

4. A disposable hygienic wine spear with a safety relief valve according to claim 3, characterized in that the spring hanger (4) is provided with an annular groove, and the bottom end of the return spring (3) is hung in the annular groove.

5. The disposable sanitary wine spear with the safety relief valve according to any one of claims 1-4, wherein the valve seat (1) is T-shaped, the accommodating hole (1032) is a step hole matched with the valve seat (1), the upper part of the accommodating hole (1032) is in clearance fit with the upper part of the valve seat (1), a gap is reserved between the lower part of the accommodating hole (1032) and the lower part of the valve seat (1), and the sealing gasket (2) is sleeved on the lower part of the valve seat (1).

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