WO2023201939A1

WO2023201939A1 - Pressure relief structure for beer barrel

Info

Publication number: WO2023201939A1
Application number: PCT/CN2022/112795
Authority: WO
Inventors: 邱迪林; 邱迪清
Original assignee: 塔罗斯科技股份有限公司
Priority date: 2022-04-20
Filing date: 2022-08-16
Publication date: 2023-10-26
Also published as: CN114634147A; CN114634147B

Abstract

The present invention belongs to the technical field of beverage apparatuses. Provided is a pressure relief structure for a beer barrel. The present invention solves the problem of it being inconvenient and labor-consuming to perform manual pressure relief on a pressure relief structure for an existing beer barrel. In the pressure relief structure for a beer barrel, the beer barrel comprises a barrel body and a beer spear, wherein the beer spear comprises a valve body mounted at a barrel opening of the barrel body; and the pressure relief structure comprises a pressure relief hole formed in the valve body in a penetrating manner, a valve stem slidably penetrates the pressure relief hole, an elastic member is further provided on the valve stem, the valve stem is circumferentially rotatable relative to the valve body, an obliquely disposed push inclined surface is provided at a position of the valve body that is close to an outer-end hole opening of the pressure relief hole, an outer end of the valve stem has a control portion protruding towards a side portion of the valve stem, and when the valve stem circumferentially rotates, the control portion can abut, under the action of the elastic member, against the push inclined surface and slide along the push inclined surface. The pressure relief structure for a beer barrel is more convenient and labor-saving to operate.

Description

A pressure relief structure for wine barrels

Technical field

The invention belongs to the technical field of wine equipment and relates to a pressure relief structure of a wine barrel.

Background technique

With the improvement of the quality of life, people have higher requirements for drinking. Canned and bottled beer can no longer meet people's drinking needs. More and more people want to drink fresh, hygienic, delicious and pure beer. Beer and wine barrels are tools used to hold wine. Generally, a wine spear is provided at the mouth of the wine barrel. The wine spear cooperates with the distributor to press out the wine in the barrel.

Specifically, the wine barrel disclosed in the patent document (Application No.: CN201711444481.5) includes a barrel body and a wine spear installed at the mouth of the barrel body. A wine bag is provided in the barrel body, and an air inlet is provided in the wine spear. passage and the wine outlet passage. The wine outlet passage is blocked by the valve core. The wine outlet passage is connected with the inner cavity of the wine bag, while the air inlet passage is connected with the inner cavity of the barrel. When taking wine, the distributor is connected to the wine spear and the distributor is opened. After the valve core, air is inflated into the barrel through the air inlet passage. The air pressure in the barrel increases and the wine is forced out from the wine outlet passage to achieve wine extraction. A safety relief valve is usually installed on the distributor to relieve the pressure when the air pressure in the barrel cavity is too high. However, in order to avoid operator errors or failure of the safety relief valve on the distributor, which may cause the barrel to be difficult to drain. pressure, causing safety accidents, a pressure relief valve will also be installed on the wine spear.

For example, the pressure-maintaining wine brewer disclosed in the patent document (Application No.: CN 201520964956.3) is equipped with a safety mechanism on the cover. The safety mechanism includes a valve stem. Under the action of the spring, the lower end of the valve stem abuts against the lower end of the pressure relief hole. Sealing is achieved, so when the pressure in the barrel is too high (exceeding the spring force), the valve stem rises and the pressure relief hole is opened to automatically relieve the pressure. However, when the empty barrel needs to be recycled after the wine in the barrel is used up, since the valve stem only opens the pressure relief hole when the pressure in the barrel is greater than the spring force, there is still a high air pressure in the empty barrel after the wine has been taken out. The pressure needs to be released manually to avoid rupture or explosion of the empty barrel due to collision, extrusion, etc. during the transportation of the empty barrel. The above-mentioned valve stem needs to be manually lifted upward to overcome the spring force. This operation of lifting the valve stem requires greater strength, and since there is more gas in the empty barrel, a longer and continuous pressure relief process is usually required, and the above-mentioned The structure requires the valve stem to be held up during the pressure relief process, which is laborious and inconvenient.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned problems in the existing technology and propose a pressure relief structure for wine barrels to solve the problem that manual pressure relief of the pressure relief structure of existing wine barrels is inconvenient and laborious.

The object of the present invention can be achieved by the following technical solutions: a pressure relief structure of a wine barrel. The wine barrel includes a barrel body and a wine spear. The wine spear includes a valve body installed at the mouth of the barrel body. The pressure relief structure The structure includes a pressure relief hole that penetrates the valve body and communicates with the inner cavity of the barrel. A valve stem is slidably passed through the pressure relief hole, and a valve stem is provided with a valve stem that can press the valve stem inwardly against the valve body. The elastic member that comes up to block the pressure relief hole is characterized in that the valve stem can rotate circumferentially in the pressure relief hole of the valve body, and the valve body has an inclined opening near the outer end of the pressure relief hole. Pushing slope, in the axial direction of the valve stem, one end of the pushing slope is higher than the other end of the pushing slope. The outer end of the valve stem has an operating portion protruding to the side, which is operated when the valve stem rotates circumferentially. The part can resist the pushing slope and slide along the pushing slope under the action of the elastic member.

The pressure relief hole is connected to the inner cavity of the barrel, and the valve stem seals the pressure relief hole through the inward elastic force of the elastic member. That is, the valve stem is pressed inward on the valve body to block the pressure relief hole. During the process of inflating the barrel to take out wine, if the operator makes an operating error or the pressure relief valve on the dispenser fails, causing the air pressure in the barrel to be too high and exceeds the threshold of the elastic member, the gas in the barrel can push the valve outward. The valve stem compresses the elastic member to open the pressure relief hole for pressure relief. After the air pressure in the barrel drops, the valve stem can automatically reset and block the pressure relief hole, thereby realizing automatic pressure relief in the barrel cavity; when the pressure inside the barrel is When the wine is collected and recycled, there is still a large air pressure in the barrel, and the valve stem can be manually rotated through the control part. The outer end of the valve stem protrudes to the side of the control part, and the valve stem can be easily rotated through the control part. During the rotation of the valve stem, the control part can resist and slide along the pushing slope. The pushing slope can push the valve stem outward along the axial direction of the valve stem, thereby realizing the valve stem compressing the elastic member and opening the pressure relief. hole to realize manual pressure relief, and the gradual elevation of the push slope is used to convert the circumferential push of the control part into the axial movement of the valve stem, which is more labor-saving and convenient.

In the pressure relief structure of the wine barrel mentioned above, the valve body has a push convex edge protruding outward in the axial direction of the pressure relief hole near the outer end of the pressure relief hole, and the push slope is located on the pressure relief hole. on the top surface of the convex edge. A pushing slope is formed by pushing the convex edge, and rotating the valve stem can make the control part press against the pushing slope of the pushing convex edge to lift the valve stem, which is easy to operate and labor-saving.

In the pressure relief structure of the wine barrel mentioned above, the valve body is sleeve-shaped, the pressure relief hole penetrates along the axial direction of the valve body, and the outer end orifice of the pressure relief hole is located on the upper end surface of the valve body, so The pushing convex edge protrudes upward, and the control part is located above the pushing convex edge. The valve stem is arranged vertically, and the control part is located at the upper part of the valve body, making it easier to operate.

In the pressure relief structure of the wine barrel mentioned above, the top surface of the pushing convex edge also has a horizontally arranged support plane. One end of the support plane is connected to the higher end of the pushing slope. When the control part is against The pressure relief hole is open when resting on a supporting surface. When the control part is pushed to cause the valve stem to rotate, the control part can slide along the pushing slope, causing the valve stem to gradually lift, and the pressure relief hole to gradually open. When the control part rests on the support plane, the valve stem lifts to its highest position, horizontally. The set support plane can stably support the control part and prevent the control part from returning and rotating under the action of the elastic member. Therefore, the operator can release the control part, while the pressure relief hole continues to release pressure, and is pushed back after the pressure relief is completed. Just reset the control part, which is convenient and labor-saving.

In the pressure relief structure of the wine barrel mentioned above, a counterbore is provided on the upper end surface of the valve body, the outer end opening of the pressure relief hole is located on the bottom surface of the counterbore, and there is also a relief at the edge of the upper end surface of the valve body. There is a notch, and the solid part between the notch and the counterbore forms the above-mentioned pushing convex edge, and the pushing convex edge is lower than the upper end surface of the valve body. The outer end of the valve stem is located in the counterbore, and the control part passes through the push convex edge and extends into the relief gap. This structure allows the outer end of the valve stem to be no higher than the upper end surface of the valve body. When the outer end of the valve stem When it is no higher than the upper end face of the valve body, it can prevent the valve stem from being affected by external interference and cause air leakage, ensuring the stability of use.

In the pressure relief structure of the wine barrel mentioned above, the outer end of the valve stem has a radially protruding sealing flange in the circumferential direction, and a sealing groove is circumferentially opened on the outer surface of the sealing flange. The sleeve is equipped with a sealing ring, and the hole wall at the outer end of the pressure relief hole is a sealing cone surface with the big end facing outward. Under the action of the elastic member, the sealing ring can be pressed against the sealing cone surface to achieve sealing. Under the action of the elastic member, the sealing ridge presses the sealing ring against the sealing cone surface. This structure also keeps the valve stem stable and ensures the sealing effect of the valve stem on the pressure relief hole.

In the pressure relief structure of the wine barrel mentioned above, the control part is located on the outer circumferential surface of the sealing rim and extends into the relief gap. There is a downwardly protruding abutment part on the lower side of the control part. The lower side of the part is a resisting arc surface, and the center line of the resisting arc surface is arranged radially along the valve stem. When the valve stem rotates circumferentially, the resisting arc surface can abut against the pushing inclined surface. The contact area with the curved surface can be reduced, thereby reducing the friction resistance when rotating the valve stem, making the operation more labor-saving.

In the pressure relief structure of the wine barrel mentioned above, a guide hole is provided on the lower end surface of the valve body, the inner end orifice of the pressure relief hole is located on the bottom surface of the guide hole, and the inner end of the valve stem extends downward into the guide hole, and a limit frame is fixed on the inner end of the valve stem. The elastic member includes a spring, and the upper end of the spring is against the bottom surface of the guide hole, and the lower end of the spring is against the limit frame. The limit bracket keeps the spring stable, and the lower end of the spring acts on the limit bracket, causing the sealing ring to be pressed downward on the sealing cone surface. The inner end of the valve stem, the limit bracket and the spring are all located in the guide hole, preventing the valve body from When assembled with the barrel, the valve stem is interfered by other components and can make the overall structure more compact.

In the pressure relief structure of the wine barrel mentioned above, the limiting frame includes a fixed sleeve and a guide ring. The fixed sleeve is sleeved and fixed on the inner end of the valve stem. The guide ring is fixed to the fixed sleeve through a plurality of rods. The outer diameter of the guide ring is larger than the outer diameter of the fixed sleeve, and the outer peripheral surface of the guide ring is in sliding fit with the hole wall of the guide hole. Since the control part is located on one side of the valve stem and is eccentrically arranged relative to the valve stem, when it is pressed against the pushing slope and the valve stem is pushed upward, the valve stem has a tendency to tilt to one side. For this reason, the limiter used to support the spring A guide ring is provided on the position frame. The inner end of the valve stem is matched with the guide hole through the guide ring, so that the valve stem remains vertical. Then when the valve stem is lowered, the sealing ring and the sealing cone surface cooperate more accurately and the sealing effect is improved. Better, and the valve stem that remains in a vertical state has less resistance to lifting and lowering, and the operation is more labor-saving.

In the pressure relief structure of the wine barrel mentioned above, the upper end surface of the valve body is provided with an upwardly protruding snap-in flange, and the outer circumferential surface of the snap-in flange is provided with a vertically arranged limiting plane. The lower end of the plane is located in the counterbore, and the limiting plane and the pushing convex edge are respectively located on both sides of the pressure relief hole. The upper part of the sealing convex edge protrudes upward from the pressure relief hole, and the outer peripheral surface of the upper part of the sealing convex edge is close to the limit. bit plane. The guide ring cooperates with the guide hole to guide the inner end of the valve stem, and the limit plane is close to the outer peripheral surface of the sealing convex edge. When the control part is pushed by the push bevel and the valve stem has a tendency to tilt, the limit plane can seal The convex edge abuts the limit, that is, the limit plane limits and guides the upper end of the valve stem, thereby keeping the valve stem in a vertical state and reducing the resistance caused by tilting when the valve stem is raised and lowered, thereby making the operation more convenient and labor-saving.

Compared with the existing technology, the pressure relief structure of this wine barrel has the following advantages:

1. Since the control part can resist and slide along the pushing slope during the rotation of the valve stem, the pushing slope can push the valve stem outward along the axial direction of the valve stem, thereby realizing the valve stem compressing the elastic member and Open the pressure relief hole to realize manual pressure relief, and use the gradual elevation of the push slope to convert the circumferential push of the control part into the axial movement of the valve stem, which is more labor-saving. Moreover, after the control part slides to the appropriate position to open the pressure relief hole, the operator can release the control part, and the control part can remain against the pushing convex edge, so that the pressure relief hole continues to release pressure. During the continuous pressure relief process There is no need to apply force to the valve stem all the time, making the operation more convenient and labor-saving.

2. Since the valve stem is raised to the highest position when the control part is against the support plane, the horizontal support plane can stably support the control part and prevent the control part from resetting and rotating under the action of the elastic member, so the operator can release The control part, and the pressure relief hole continues to relieve pressure. After the pressure relief is completed, push the control part in the opposite direction to reset, which is easy to operate and labor-saving.

3. Since the guide ring cooperates with the guide hole to guide the lower end of the valve stem, and the limit plane is close to the outer circumferential surface of the sealing convex edge, when the control part is pushed by the push slope and the valve stem has a tendency to tilt, the limit plane can The sealing convex edge is pressed against the limit, that is, the limit plane limits and guides the upper end of the valve stem, thereby keeping the valve stem in a vertical state and reducing the resistance to the lifting and lowering of the valve stem, thereby making the operation more convenient and labor-saving.

Description of the drawings

Figure 1 is a partial three-dimensional structural diagram of the upper part of the wine barrel.

Figure 2 is an enlarged view of the structure at point A in Figure 1.

Figure 3 is a partial structural cross-sectional view of the upper part of the wine barrel.

Figure 4 is an enlarged view of the structure at B in Figure 3.

Figure 5 is a schematic three-dimensional structural diagram of the valve body.

Figure 6 is an enlarged view of the structure at C in Figure 5.

Figure 7 is a structural front view of the valve body.

Figure 8 is an enlarged view of the structure at D in Figure 7 .

Figure 9 is a schematic three-dimensional structural diagram of the valve stem.

Figure 10 is a schematic three-dimensional structural diagram of the valve stem from another perspective.

Figure 11 is a partial structural cross-sectional view of the valve stem.

Figure 12 is a schematic three-dimensional structural diagram of the limiting frame.

Figure 13 is a schematic diagram of the manual pressure relief process.

Figure 14 is a schematic diagram of the position of the valve stem at the pressure relief hole when the operating part is separated from the pushing convex edge.

Figure 15 is a schematic diagram of the position of the valve stem at the pressure relief hole when the operating part is against the support plane.

In the figure, 1. barrel; 2. wine bag; 3. wine spear; 31. joint; 32. valve core; 4. valve body; 41. pressure relief hole; 411. sealing cone; 412. limiting cone ; 42. Guide hole; 43. Counterbore; 44. Giving way; 45. Pushing convex edge; 451. Pushing slope; 452. Support plane; 453. Limiting surface; 454. Limiting part; 455. Connecting wall ; 46. Snap-on flange; 461. Limiting plane; 5. Valve stem; 51. Sealing flange; 511. Sealing groove; 512. Sealing ring; 52. Control part; 521. Resistance part; 522. Resistance Arc surface; 523, groove; 53, abutting convex edge; 6, elastic member; 7, limiting frame; 71, fixed sleeve; 72, guide ring; 73, rod; 8, gap.

Detailed ways

The following are specific embodiments of the present invention combined with the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in Figures 1 to 4, a pressure relief structure of a wine barrel. The wine barrel includes a barrel body 1, a wine bag 2 and a wine spear 3. The wine spear 3 includes a sleeve-shaped valve body 4, which is fixed Installed at the mouth of the barrel 1, a cylindrical joint 31 is provided in the valve body 4, and a valve core 32 is provided in the joint 31. The joint 31 is connected to the wine bag 2, so the outside of the joint 31 is connected to the inside of the barrel 1. The cavity is connected, and the inside of the joint 31 is connected with the inner cavity of the wine bag 2. The upper end surface of the valve body 4 is provided with an upwardly protruding engaging flange 46 for connecting to the distributor. The pressure relief structure includes a valve stem 5. The valve body 4 is provided with a pressure relief hole 41 along the axial direction. That is, the pressure relief hole 41 is opened in a vertical manner, and the outer end of the pressure relief hole 41 is the upper end of the pressure relief hole 41. The inner end of the pressure relief hole 41 is the lower end of the pressure relief hole 41 . The upper end of the pressure relief hole 41 penetrates to the upper end surface of the valve body 4 , and the lower end of the pressure relief hole 41 is connected with the inner cavity of the barrel 1 . The valve stem 5 slides through the pressure relief hole 41 , the outer end of the valve stem 5 is the upper end of the valve stem 5 , and the inner end of the valve stem 5 is the lower end of the valve stem 5 . The valve stem 5 is covered with an elastic member 6. Under the action of the elastic member 6, the valve stem 5 is pressed downwards on the valve body 4 to block the pressure relief hole 41. The valve stem 5 can rotate circumferentially in the pressure relief hole 41 of the valve body 4 . The valve body 4 has an upwardly protruding push ledge 45 near the outer end opening of the pressure relief hole 41. The top surface of the push ledge 45 has an inclined push slope 451. One end of the push slope 451 is high. The other end of the pushing slope 451 , that is, the pushing slope 451 extends spirally along the axial direction of the pressure relief hole 41 . The upper end of the valve stem 5 has an operating portion 52 protruding to the side. When the valve stem 5 blocks the pressure relief hole 41, the operating portion 52 is separated from the pushing convex edge 45. When the valve stem 5 rotates circumferentially, the operating portion 52 52 can resist the push slope 451 and slide along the push slope 451 under the action of the elastic member 6, and the push slope 451 lifts the valve stem 5 upward, causing the pressure relief hole 41 to open.

Specifically, as shown in FIGS. 5 to 8 and 13 to 15 , a counterbore 43 is provided on the upper end surface of the valve body 4 , and the upper end opening of the pressure relief hole 41 is located on the bottom surface of the counterbore 43 . There is also a relief notch 44 at the edge of the end surface, and the solid part between the relief notch 44 and the counterbore 43 forms a pushing ledge 45 , which is lower than the upper end surface of the valve body 4 . The pushing convex edge 45 is in the shape of an arc strip and is arranged around the opening of the pressure relief hole 41 , and the pushing convex edge 45 and the pressure relief hole 41 have the same axis. There is also a support plane 452 on the top surface of the push convex edge 45. The support plane 452 is set horizontally, and one end of the support plane 452 is connected to the higher end of the push slope 451. The other end of the support plane 452 is connected to a vertically arranged The lower end of the limiting surface 453 is connected. The lower end of the pushing slope 451 is connected to the lower end of a restricting portion 454 protruding from the pushing slope 451 . When the operating portion 52 abuts against the supporting plane 452, the pressure relief hole 41 is in an open state. The upper end of the valve stem 5 has a radially protruding sealing ledge 51 in the circumferential direction. The operating portion 52 is flat. One end of the operating portion 52 is fixed on the outer circumferential surface of the sealing rim 51 , and the other end of the operating portion 52 passes through the push convex. It extends above the edge 45 and into the relief notch 44 , and the portion of the operating portion 52 in the relief notch 44 is bent downward. There are ridges on the outer surface of the control part 52 to facilitate manual pushing. There is a downwardly protruding abutment portion 521 on the lower side of the operating portion 52 . The lower side of the abutment portion 521 is an abutment arc surface 522 , and the center line of the abutment arc surface 522 is disposed radially along the valve stem 5 . During the circumferential rotation of the valve stem 5, the resisting portion 521 can be blocked by the limiting surface 453 and the limiting portion 454. The limiting surface 453 and the limiting portion 454 limit the rotation angle of the operating portion 52 to facilitate manual pressure relief operations. proceeding. A connecting wall 455 is integrally connected between the restricting portion 454 and the pushing slope 451. The connecting wall 455 is located on the side of the pushing slope 451 close to the pressure relief hole 41. The connecting wall 455 can ensure the structure at the upper end of the pressure relief hole 41. Stability and sealing effect when the valve stem 5 blocks the pressure relief hole 41. A groove 523 is provided on the lower side of the abutment portion 521 close to the sealing convex edge 51, and the groove 523 is used to avoid the connecting wall 455. When the valve stem 5 rotates circumferentially so that the resisting portion 521 is blocked by the restricting portion 454, the valve stem 5 is at the lowest position, the upper end of the valve stem 5 is lower than the upper end surface of the valve body 4, and the connecting wall 455 is located in the groove 523, against which There is a gap 8 between the arc surface 522 and the pushing convex edge 45. At this time, the pressure relief hole 41 is in a blocked state; when the valve stem 5 rotates circumferentially, the operating part 52 abuts against the pushing slope 451 by abutting the arc surface 522. , the resisting arc surface 522 and the pushing inclined surface 451 are in line contact, reducing the friction resistance between the two; when the resisting arc surface 522 abuts on the support plane 452, the valve stem 5 is pushed to the highest position. The outer circumferential surface of the engaging ledge 46 has a vertically arranged limiting plane 461 . The lower end of the limiting plane 461 is located in the counterbore 43 , and the limiting plane 461 and the pushing convex edge 45 are respectively located at the pressure relief hole 41 On both sides, the upper part of the sealing ledge 51 protrudes upward from the pressure relief hole 41 , and the outer peripheral surface of the upper part of the sealing ledge 51 is close to the limiting plane 461 , that is, one side of the upper outer peripheral surface of the sealing ledge 51 and the lower end of the limiting plane 461 Relative to and close to the limiting plane 461.

As shown in FIGS. 9 to 11 , a sealing groove 511 is circumferentially formed on the outer surface of the sealing protrusion 51 , and a sealing ring 512 is set inside the sealing groove 511 . The hole wall at the upper end of the pressure relief hole 41 has a sealing cone surface 411 with the big end facing upward and a limiting cone surface 412. The lower end of the sealing cone surface 411 is connected to the straight hole wall of the pressure relief hole 41, and the lower end of the limiting cone surface 412 is connected to the straight wall of the pressure relief hole 41. The upper ends of the sealing cone surface 411 are connected, and the taper of the limiting cone surface 412 is greater than the taper of the sealing cone surface 411 . A guide hole 42 is formed on the lower end surface of the valve body 4 , and the lower end opening of the pressure relief hole 41 is located on the bottom surface of the guide hole 42 . The lower end of the valve stem 5 extends downward into the guide hole 42 , and the limiting frame 7 is fixed on the lower end of the valve stem 5 . The elastic member 6 includes a spring, and the upper end of the spring abuts the bottom surface of the guide hole 42 , and the lower end of the spring abuts the limiting frame 7 . Under the action of the spring, the sealing ring 512 is pressed against the sealing cone surface 411 . At this time, the upper part of the sealing ridge 51 protrudes upward from the upper end of the limiting cone surface 412 , but is still located in the counterbore 43 . The limiting cone surface 412 can abut against the sealing convex edge 51 when the sealing ring 512 is over-squeezed, and plays a limiting role to prevent the sealing ring 512 from being over-squeezed, resulting in excessive tension and affecting automatic pressure relief. As shown in Figures 4 and 12, the limiting frame 7 includes a fixed sleeve 71 and a guide ring 72. The lower end of the fixed sleeve 71 is in the shape of a constriction, and there is a radially protruding abutment rim at the lower end of the valve stem 5. 53. The fixed sleeve 71 is set on the lower end of the valve stem 5, and the guide ring 72 is fixedly connected to the fixed sleeve 71 through a plurality of rod portions 73, so that the guide ring 72 and the fixed sleeve 71 are coaxially arranged. The spring is sleeved on the outside of the fixed sleeve 71 , and the lower end of the spring abuts on a plurality of rod portions 73 , so that the constriction at the lower end of the fixed sleeve 71 abuts on the abutment convex edge 53 . Generally, 1 to 4 rod portions 73 are provided. The rod portions 73 are L-shaped. The upper end of the rod portion 73 is fixedly connected to the guide ring 72 , and the lower end of the rod portion 73 is fixedly connected to the fixed sleeve 71 . The outer diameter of the guide ring 72 is larger than the outer diameter of the fixed sleeve 71 , and the outer peripheral surface of the guide ring 72 slides with the hole wall of the guide hole 42 .

When the wine spear 3 is in normal use, the position of the control part 52 is as shown in the first picture in Figure 13 and Figure 14. The control part 52 is located at the end of the push slope 451 away from the support plane 452 (that is, the lower end of the push slope 451 ), and because the sealing ring 512 abuts against the sealing cone surface 411 , the operating portion 52 is separated from the pushing convex edge 45 , that is, there is a gap 8 between the abutting portion 52 and the pushing convex edge 45 . The existence of the gap 8 can prevent the interference between the abutment portion 52 and the pushing convex edge 45 from affecting the sealing effect between the sealing ring 512 and the sealing cone surface 411 . At this time, when the air pressure in the inner cavity of the barrel 1 is greater than the elastic force of the spring, the gas in the barrel 1 acts on the valve stem 5 to lift the valve stem 5, and the sealing ring 512 separates from the sealing cone 411 to open the pressure relief hole 41 Perform pressure relief. After the pressure relief is completed, the air pressure in the barrel 1 drops. Under the action of the spring, the valve stem 5 descends, and the sealing ring 512 again abuts the sealing cone surface 411 to block the pressure relief hole 41. When manual pressure relief is required, as shown in Figure 13, push the operating part 52 to rotate toward the support plane 452. During the rotation of the valve stem 5, the abutting arc surface 522 of the operating part 52 abuts against the top under the action of the spring elastic force. On the pushing inclined surface 451, the operating part 52 slides upward along the pushing inclined surface 451, and the pushing inclined surface 451 lifts the valve stem 5 upward. The sealing ring 512 separates from the sealing cone surface 411, causing the pressure relief hole 41 to open for pressure relief. When it is necessary to maintain the pressure relief state, as shown in the third picture in Figure 13 and Figure 15, the operating part 52 is rotated to be above the support plane 452. After the operating part 52 is released, the abutting arc surface 522 of the operating part 52 remains in contact. Leaning against the support plane 452, the pressure relief hole 41 is kept open. After the manual pressure relief is completed, when the valve stem 5 needs to be reset, push the control part 52 in the opposite direction to push the control part 52 away from the support plane 452. Under the action of the spring elastic force, the resisting arc surface 522 of the control part 52 abuts against the support plane 452. On the pushing slope 451, the operating part 52 slides downward along the pushing slope 451 until the sealing ring 512 again abuts the sealing cone surface 411 to block the pressure relief hole 41. The pressure relief structure can not only relieve pressure automatically, but also can relieve pressure manually, and the manual pressure relief operation is convenient and labor-saving.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or additions to the described specific embodiments or substitute them in similar ways, but this will not deviate from the spirit of the present invention or exceed the definition of the appended claims. range.

Although this article mostly uses terms such as barrel 1, wine bag 2, and wine spear 3, it does not rule out the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

A pressure relief structure for a wine barrel. The wine barrel includes a barrel body (1) and a wine spear (3). The wine spear (3) includes a valve body (4) installed at the mouth of the barrel body (1). The pressure relief structure includes a pressure relief hole (41) that is opened through the valve body (4) and communicates with the inner cavity of the barrel (1). A valve stem (5) is slidably passed through the pressure relief hole (41). ), the valve stem (5) is provided with an elastic member (6) that can press the valve stem (5) inwardly against the valve body (4) to block the pressure relief hole (41). The characteristic is that the valve stem (5) is The valve stem (5) can rotate circumferentially in the pressure relief hole (41) of the valve body (4), and the valve body (4) has an inclined top near the outer end opening of the pressure relief hole (41). The push slope (451), in the axial direction of the valve stem (5), one end of the push slope (451) is higher than the other end of the push slope (451), and the outer end of the valve rod (5) has a side portion The protruding operating part (52), when the valve stem (5) rotates circumferentially, the operating part (52) can resist the pushing slope (451) under the action of the elastic member (6) and move along the pushing slope (451)Slide.
The pressure relief structure of a wine barrel according to claim 1, characterized in that the valve body (4) is close to the outer end orifice of the pressure relief hole (41) and has an axial direction extending outward along the pressure relief hole (41). A protruding pushing ledge (45), the pushing slope (451) is located on the top surface of the pushing ledge (45).
The pressure relief structure of a wine barrel according to claim 2, characterized in that the valve body (4) is sleeve-shaped, the pressure relief hole (41) runs through the valve body (4) in the axial direction, and the pressure relief hole (41) penetrates the valve body (4) in the axial direction, and the pressure relief hole (41) is in the shape of a sleeve. The outer end orifice of the pressure hole (41) is located on the upper end surface of the valve body (4), the pushing convex edge (45) protrudes upward, and the control part (52) is located on the pushing convex edge (45) above.
The pressure relief structure of a wine barrel according to claim 3, characterized in that the top surface of the pushing convex edge (45) also has a horizontally arranged support plane (452), and the support plane (452) One end is connected to the higher end of the push slope (451). When the operating part (52) abuts against the support plane (452), the pressure relief hole (41) is in an open state.
The pressure relief structure of a wine barrel according to claim 2, 3 or 4, characterized in that a counterbore (43) is provided on the upper end surface of the valve body (4), and the outer end of the pressure relief hole (41) The orifice is located on the bottom of the counterbore (43). There is also a relief gap (44) at the edge of the upper end surface of the valve body (4). The solid part between the relief gap (44) and the counterbore (43) The above-mentioned pushing convex edge (45) is formed, and the pushing convex edge (45) is lower than the upper end surface of the valve body (4).
The pressure relief structure of a wine barrel according to claim 5, characterized in that the outer end of the valve stem (5) has a radially protruding sealing flange (51) in the circumferential direction, and the sealing flange (51) ) is provided with a sealing groove (511) circumferentially on the outer surface, and a sealing ring (512) is set inside the sealing groove (511). The hole wall at the outer end of the pressure relief hole (41) is a seal with the big end facing outward. The cone surface (411), under the action of the elastic member (6), the sealing ring (512) can be pressed against the sealing cone surface (411) to achieve sealing.
The pressure relief structure of a wine barrel according to claim 6, characterized in that the operating part (52) is located on the outer peripheral surface of the sealing rim (51) and extends into the relief gap (44). 52) has a downwardly protruding abutment portion (521) on the lower side, the lower side of the abutment portion (521) is abutment arc surface (522), and the center line of the abutment arc surface (522) is along The valve stem (5) is arranged radially. When the valve stem (5) rotates circumferentially, the abutting arc surface (522) can abut against the pushing inclined surface (451).
The pressure relief structure of a wine barrel according to claim 2, 3 or 4, characterized in that a guide hole (42) is provided on the lower end surface (4b) of the valve body (4), and the pressure relief hole ( The inner end orifice of 41) is located on the bottom surface of the guide hole (42), and the inner end of the valve stem (5) extends downward into the guide hole (42), and is fixed to a limited position at the inner end of the valve stem (5) Frame (7), the elastic member (6) includes a spring, and the upper end of the spring is against the bottom surface of the guide hole (42), and the lower end of the spring is against the limiting frame (7).
The pressure relief structure of a wine barrel according to claim 8, characterized in that the limiting frame (7) includes a fixed sleeve (71) and a guide ring (72), and the fixed sleeve (71) is sleeved and fixed At the inner end of the valve stem (5), the guide ring (72) is fixedly connected to the fixed sleeve (71) through several rod portions (73), and the outer diameter of the guide ring (72) is larger than that of the fixed sleeve (71). The outer diameter of the guide ring (72) is in sliding fit with the hole wall of the guide hole (42).
The pressure relief structure of a wine barrel according to claim 6, characterized in that the upper end surface of the valve body (4) has an upwardly protruding snap-in flange (46), and the snap-in flange (46) There is a vertically arranged limiting plane (461) on the outer circumferential surface. The lower end of the limiting plane (461) is located in the counterbore (43). On both sides of the pressure relief hole (41), the upper part of the sealing flange (51) protrudes upward from the pressure relief hole (41), and the outer peripheral surface of the upper part of the sealing flange (51) is close to the limiting plane (461).