Wine spear and wine barrel with good sealing performance

By designing a combined structure of the spear cap, silicone sealing block, compression spring, and stop base, the problem of poor sealing between the spear and the beer keg was solved, achieving both keg sealing and air pressure regulation, thus ensuring beer quality and safe transportation.

CN224467550UActive Publication Date: 2026-07-07杭州世璟智能科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
杭州世璟智能科技有限公司
Filing Date
2025-08-28
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing connection between the beer spear and the beer keg is not sealed tightly enough, which can easily lead to leakage.

Method used

It adopts a combination structure of spear cap, silicone sealing block, compression spring, stop base and spear rod, and forms a sealing structure through internal thread connection and elastic hook snap-fit, and is equipped with pressure relief hole and one-way valve to regulate internal air pressure.

Benefits of technology

It achieves excellent sealing of the barrel, ensuring the quality of the wine, reducing leakage, and automatically adjusting the air pressure during transportation to maintain a safe range.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224467550U_ABST
    Figure CN224467550U_ABST
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Abstract

The application provides a wine spear with good sealing performance, which comprises a spear cover, a silica gel sealing block, a compression spring, a stop base and a spear rod, the spear cover is threadedly connected with a wine barrel, a cylindrical mounting portion extends downward from the bottom surface of the spear cover, a plurality of clamping holes are arranged in the lower part of the cylindrical mounting portion, a plurality of first elastic clamping hooks are arranged on the top outer side of the stop base, the silica gel sealing block has a circular ring structure, the stop base is inserted into the cylindrical mounting portion in an upward direction and is positioned in the clamping holes through the first elastic clamping hooks, the compression spring is kept in a compressed state after being installed in a limited manner through the silica gel sealing block and the stop base, a plurality of second elastic clamping hooks are arranged on the inner side of the bottom of the stop base, a wine outlet is arranged on the outer side wall of the top of the spear rod, an annular clamping groove is arranged on the lower part of the spear rod, and the spear rod is inserted into the silica gel sealing block from the center hole of the silica gel sealing block in a top-to-bottom direction and is fixed in the annular clamping groove through the second elastic clamping hooks. The application has perfect sealing performance and can guarantee the sealing performance of the wine barrel after the wine barrel is filled with beer.
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Description

Technical Field

[0001] This invention relates to the field of wine spear technology, and in particular to a wine spear and wine barrel with good sealing performance. Background Technology

[0002] A beer spout is a dispensing valve for beer from a draft beer keg. It is used to dispense beer from the keg, sealing itself with the keg neck thread. It works in conjunction with similar bottling lines and dispensers, achieving the purpose of filling and dispensing beer through the exchange of carbon dioxide and draft beer. Current technology typically uses a plug-in connection with the draft beer keg via a threaded connection. The sealing effect of such spouts is not strong enough, potentially leading to leaks and affecting usability. Summary of the Invention

[0003] To address the aforementioned problems, this invention aims to provide a beer barrel and beer container with excellent sealing performance. Its sealing structure is perfect, ensuring the barrel's airtightness after beer is placed inside.

[0004] The technical solution of this invention is a wine spear with good sealing performance, including a spear cap, a silicone sealing block, a compression spring, a stop base, and a spear shaft. The inner surface of the outer wall of the spear cap is provided with an internal thread that mates with the external thread of the wine barrel neck. A cylindrical mounting part extends downward from the bottom surface of the spear cap and is arranged concentrically with the side wall. Several locking holes are provided at equal angles along the circumference in the lower region of the cylindrical mounting part. Several outwardly extending first elastic hooks are provided on the outer side of the top of the stop base. The silicone sealing block has a ring-shaped structure. The silicone sealing block and the compression spring are inserted sequentially from bottom to top into the inner bottom of the cylindrical mounting part. The stop base is inserted upward into the cylindrical mounting part through several... The first elastic hook is positioned by engaging the locking hole. The top and bottom of the compression spring are kept compressed after being limited by the silicone sealing block and the stop base, respectively. The inner side of the bottom of the stop base is provided with several second elastic hooks extending inward at equal angles along the circumference. The outer side wall of the top of the spear shaft is provided with an outlet. The lower part of the spear shaft is provided with an annular locking groove. After the spear shaft is inserted into the center hole of the silicone sealing block from top to bottom, the second elastic hooks engage and fix it in the annular locking groove. After the spear cap, silicone sealing block, compression spring, stop base and spear shaft are assembled according to the above structure, the top of the spear shaft, the top of the silicone sealing block and the top of the spear cap form a sealing structure.

[0005] Preferably, the silicone sealing block is provided with a pressure relief hole vertically, and a one-way valve is provided inside the silicone sealing block. Under normal conditions, the one-way valve seals the pressure relief hole. When the internal pressure of the barrel exceeds a set value, the internal air pressure opens the one-way valve and releases pressure through the pressure relief hole.

[0006] Preferably, the first elastic hook on the outer side of the top of the stop base has vertical grooves that penetrate the sidewall on both sides. When the outer side of the first elastic hook is squeezed, it deforms inward through the vertical grooves on both sides. After the squeezing force disappears, the first elastic hook returns to its original shape.

[0007] Preferably, the second elastic hook on the inner side of the bottom of the stop base has vertical grooves on both the left and right sides that penetrate the side wall. When the inner side of the second elastic hook is squeezed, it deforms outward through the vertical grooves on the left and right sides. After the squeezing force disappears, the second elastic hook returns to its original shape.

[0008] Preferably, the outer side of the bottom of the spear shaft is provided with a plurality of annular mounting grooves for fitting a connecting hose.

[0009] Preferably, the outer side of the spear cover has multiple slots at equal angles along the circumferential direction for securing with a special wrench.

[0010] This invention provides a well-sealed wine barrel, including a wine spear. The wine spear comprises a spear cap, a silicone sealing block, a compression spring, a stop base, and a spear shaft. The inner surface of the outer wall of the spear cap is provided with an internal thread that mates with the external thread of the wine barrel neck. A cylindrical mounting portion extends downward from the bottom surface of the spear cap, concentrically arranged with the side wall. The lower region of the cylindrical mounting portion has several locking holes arranged at equal angles along the circumference. The top outer side of the stop base is provided with several outwardly extending first elastic hooks. The silicone sealing block has a circular structure. The silicone sealing block and the compression spring are inserted sequentially from bottom to top through the bottom inner side of the cylindrical mounting portion. The stop base is inserted upward into the cylindrical mounting portion and positioned by the several first elastic hooks engaging the locking holes. The top and bottom of the compression spring are respectively limited by the silicone sealing block and the stop base and remain compressed. The inner side of the bottom of the stop base is provided with several locking holes arranged at equal angles along the circumference. A second elastic hook extends inward, and a wine outlet is provided on the outer side wall of the top of the spear shaft. An annular groove is provided at the bottom of the spear shaft. After the spear shaft is inserted into the center hole of the silicone sealing block from top to bottom, the second elastic hook is engaged in the annular groove for fixation. After the spear cap, silicone sealing block, compression spring, stop base and spear shaft are assembled according to the above structure, the top of the spear shaft, the top of the silicone sealing block and the top of the spear cap form a sealing structure. It also includes a barrel body. The outer side of the barrel body neck is provided with an external thread. The inner thread of the outer side wall of the spear cap is threaded to the outer thread of the barrel neck. A sealing ring is provided between the outer side wall of the spear cap and the cylindrical mounting part. After the spear cap is threaded to the barrel body, the top of the barrel body abuts against the sealing ring to achieve a seal at that position. A handle cover is provided between the lower end of the barrel body neck and the bottom surface of the spear cap. The handle cover is fitted onto the outer side of the barrel body neck from top to bottom. After the spear cap is tightened, the lower part is pressed against the top of the handle cover for fixation.

[0011] Preferably, the bottom of the barrel is connected to a base.

[0012] Preferably, both the barrel body and the base are made of stainless steel and are welded together as one piece.

[0013] This invention, through its unique and reliable connection structure, ensures a perfect sealing structure, guaranteeing the barrel's airtightness after beer is placed inside. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the barrel of the present invention;

[0015] Figure 2 for Figure 1 The main view;

[0016] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0017] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0018] Figure 5 for Figure 4 A schematic diagram of the structure of the silicone sealing block under pressure;

[0019] Figure 6 This is a schematic diagram of the structure of the wine spear of the present invention;

[0020] Figure 7 for Figure 6 A structural diagram from another perspective;

[0021] Figure 8 This is an exploded view of the wine spear of the present invention;

[0022] Figure 9 for Figure 8 A structural diagram from another perspective;

[0023] Wherein: 1—Spear cap; 11—Internal thread; 12—Cylindrical mounting part; 121—Snap hole; 13—Snap groove; 2—Silicone sealing block; 21—Pressure relief hole; 3—Compression spring; 4—Stop base; 41—First elastic snap hook; 42—Second elastic snap hook; 5—Spear rod; 51—Wine outlet; 52—Annular snap groove; 53—Annular mounting groove; 6—Barrel body; 7—Sealing ring; 8—Handle cap; 9—Base. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] like Figures 6 to 9As shown, the present invention provides a wine spear with good sealing performance, including a spear cap 1, a silicone sealing block 2, a compression spring 3, a stop base 4, and a spear shaft 5. The inner surface of the outer wall of the spear cap 1 is provided with an internal thread 11 that mates with the external thread of the neck of the wine barrel. A cylindrical mounting part 12 extends downward from the bottom surface of the spear cap 1 and is arranged concentrically with the side wall. Several locking holes 121 are provided at equal angles along the circumference in the lower region of the cylindrical mounting part 12. Several outwardly extending first elastic hooks 41 are provided on the outer side of the top of the stop base 4. The silicone sealing block 2 has a ring-shaped structure. The silicone sealing block 2 and the compression spring 3 are inserted sequentially from bottom to top through the bottom of the inner side of the cylindrical mounting part 12. The stop base 4 is inserted upward into the cylindrical mounting part 12 through several first elastic hooks 41. The elastic hook 41 is positioned by engaging the locking hole 121. The compression spring 3 is kept compressed after being limited by the silicone sealing block 2 and the stop base 4 at its top and bottom, respectively. The inner side of the bottom of the stop base 4 is provided with several second elastic hooks 42 extending inward at equal angles along the circumference. The outer side wall of the top of the spear 5 is provided with an outlet 51. The lower part of the spear 5 is provided with an annular groove 52. After the spear 5 is inserted into the center hole of the silicone sealing block 2 from top to bottom, the second elastic hooks 42 engage in the annular groove 52 for fixation. After the spear cap 1, silicone sealing block 2, compression spring 3, stop base 4 and spear 5 are assembled according to the above structure, the top of the spear 5, the top of the silicone sealing block 2 and the top of the spear cap 1 form a sealing structure.

[0026] In the above scheme, the silicone sealing block 2 is vertically provided with a pressure relief hole 21, and the silicone sealing block 2 is provided with a one-way valve. Under normal conditions, the one-way valve seals the pressure relief hole 21. When the internal pressure of the barrel exceeds the set value, the internal air pressure opens the one-way valve and releases pressure through the pressure relief hole 21.

[0027] Specifically, the first elastic hook 41 on the outer side of the top of the stop base 4 has vertical grooves that penetrate the side wall on both the left and right sides. When the outer side of the first elastic hook 41 is squeezed, it deforms inward through the vertical grooves on the left and right sides. After the squeezing force disappears, the first elastic hook 41 returns to its original shape.

[0028] Specifically, the second elastic hook 42 on the inner side of the bottom of the stop base 4 has vertical grooves that penetrate the side wall on both the left and right sides. When the inner side of the second elastic hook 42 is squeezed, it deforms outward through the vertical grooves on the left and right sides. After the squeezing force disappears, the second elastic hook 42 returns to its original shape.

[0029] In addition, the bottom outer side of the spear shaft 5 is provided with a plurality of annular mounting grooves 53 for fitting the connecting hose.

[0030] In addition, the outer side of the spear cover 1 is provided with multiple slots 13 at equal angles along the circumference for a special wrench to be engaged and fixed.

[0031] like Figures 1 to 5As shown, the present invention provides a well-sealed wine barrel, including a wine spear, wherein the wine spear includes a spear cap 1, a silicone sealing block 2, a compression spring 3, a stop base 4, and a spear shaft 5. The inner surface of the outer wall of the spear cap 1 is provided with an internal thread 11 that mates with the external thread of the wine barrel neck. A cylindrical mounting part 12 extends downward from the bottom surface of the spear cap 1 and is arranged concentrically with the side wall. The lower region of the cylindrical mounting part 12 is provided with several locking holes 121 at equal angles along the circumference. The outer side of the top of the stop base 4 is provided with several outwardly extending... The first elastic hook 41, the silicone sealing block 2 is a ring-shaped structure, the silicone sealing block 2 and the compression spring 3 are inserted into the bottom of the inner side of the cylindrical mounting part 12 from bottom to top, the stop base 4 is inserted into the cylindrical mounting part 12 upward and positioned by several first elastic hooks 41 into the locking holes 121, the top and bottom of the compression spring 3 are respectively limited by the silicone sealing block 2 and the stop base 4 and are kept in a compressed state, the bottom inner side of the stop base 4 is provided with several angles arranged along the circumference. The second elastic hook 42 extends inward. A wine outlet 51 is provided on the outer side wall of the top of the spear 5. An annular groove 52 is provided at the lower part of the spear 5. After the spear 5 is inserted into the center hole of the silicone sealing block 2 from top to bottom, the second elastic hook 42 engages and is fixed in the annular groove 52. After the spear cap 1, silicone sealing block 2, compression spring 3, stop base 4, and spear 5 are assembled according to the above structure, the top of the spear 5, the top of the silicone sealing block 2, and the top of the spear cap 1 form a sealing structure. It also includes a barrel body 6. The outer side of the neck of the barrel body 6 is provided with external threads. The inner thread 11 of the outer side wall of the spear cover 1 is threaded to the outer thread of the neck of the barrel. A sealing ring 7 is provided between the outer side wall of the spear cover 1 and the cylindrical mounting part 12. After the spear cover 1 is threaded to the barrel body 6, the top of the barrel body 6 abuts against the sealing ring 7 to achieve a seal at that position. A handle cover 8 is provided between the lower end of the neck of the barrel body 6 and the bottom surface of the spear cover 1. The handle cover 8 is fitted onto the outer side of the neck of the barrel body 6 from top to bottom. After the spear cover 1 is tightened, the lower part is pressed against the top of the handle cover 8 for fixation.

[0032] In the above scheme, the bottom of the barrel 6 is connected to a base 9.

[0033] Specifically, both the barrel body 6 and the base 9 are made of stainless steel and are welded together as one piece.

[0034] This invention utilizes a unique connection structure to assemble a spear, consisting of a spear cap 1, a silicone sealing block 2, a compression spring 3, a stop base 4, and a spear shaft 5, into a single component. The silicone sealing block 2, under the action of the compression spring 3, effectively seals the junction of the spear cap 1 and the spear shaft 5, ensuring a safe and reliable overall structure. After the spear is threaded onto the barrel body 6, the junction is sealed by a sealing ring 7. During subsequent handling, it can be operated directly through the handle cap 8, and the barrel can be placed using the base 9. The entire connection structure is safe and reliable, providing a reliable sealing and preservation effect after assembly. Furthermore, during transportation, if the internal pressure exceeds a set critical value, the one-way valve in the pressure relief hole 21 will open, releasing pressure inside the barrel and maintaining the internal pressure within a normal range. This ensures the internal pressure remains within a safe range, while also guaranteeing the quality of the wine and minimizing wine loss.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any way. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A wine spear with good sealing performance, characterized in that: The device includes a spear cap (1), a silicone sealing block (2), a compression spring (3), a stop base (4), and a spear shaft (5). The inner surface of the outer wall of the spear cap (1) is provided with an internal thread (11) that mates with the external thread of the neck of the barrel. The bottom surface of the spear cap (1) extends downward to form a cylindrical mounting part (12) arranged concentrically with the side wall. The lower part of the cylindrical mounting part (12) is provided with several locking holes (121) at equal angles along the circumference. The top outer side of the stop base (4) is provided with several outwardly extending first elastic hooks (41). The silicone sealing block (2) is a ring-shaped structure. The silicone sealing block (2) and the compression spring (3) are inserted sequentially from bottom to top through the bottom of the inner side of the cylindrical mounting part (12). The stop base (4) is inserted upward into the cylindrical mounting part (12) and locked in place by several first elastic hooks (41). Positioned inside the hole (121), the top and bottom of the compression spring (3) are respectively limited by the silicone sealing block (2) and the stop base (4) and kept in a compressed state. The bottom inner side of the stop base (4) is provided with several second elastic hooks (42) that extend inward at equal angles along the circumference. The top outer wall of the spear rod (5) is provided with a wine outlet (51). The lower part of the spear rod (5) is provided with an annular groove (52). After the spear rod (5) is inserted into the center hole of the silicone sealing block (2) from top to bottom, the second elastic hooks (42) are locked into the annular groove (52) and fixed. After the spear cover (1), silicone sealing block (2), compression spring (3), stop base (4) and spear rod (5) are assembled, the top of the spear rod (5), the top of the silicone sealing block (2) and the top of the spear cover (1) form a sealing structure.

2. The wine spear with good sealing performance according to claim 1, characterized in that: The silicone sealing block (2) is vertically provided with a pressure relief hole (21). The silicone sealing block (2) is provided with a one-way valve. Under normal conditions, the one-way valve seals the pressure relief hole (21). When the pressure inside the barrel exceeds the set value, the internal air pressure opens the one-way valve and releases pressure through the pressure relief hole (21).

3. The wine spear with good sealing performance according to claim 1, characterized in that: The first elastic hook (41) on the outer side of the top of the stop base (4) has vertical grooves that penetrate the side wall on both sides. When the outer side of the first elastic hook (41) is squeezed, it deforms inward through the vertical grooves on both sides. After the squeezing force disappears, the first elastic hook (41) returns to its original shape.

4. The wine spear with good sealing performance according to claim 1, characterized in that: The second elastic hook (42) on the inner side of the bottom of the stop base (4) has vertical grooves that penetrate the side wall on both sides. When the inner side of the second elastic hook (42) is squeezed, it deforms outward through the vertical grooves on both sides. After the squeezing force disappears, the second elastic hook (42) returns to its original shape.

5. A wine spear with good sealing performance according to claim 1, characterized in that: The bottom outer side of the spear shaft (5) is provided with multiple annular mounting grooves (53) for mounting the connecting hose.

6. A wine spear with good sealing performance according to claim 1, characterized in that: The outer side of the spear cover (1) is provided with multiple slots (13) at equal angles along the circumference for a special wrench to be engaged and fixed.

7. A wine barrel with good sealing properties, characterized in that: The barrel (6) includes a barrel body (6) and a wine spear as described in claim 1. The outer side of the neck of the barrel body (6) is provided with an external thread. The inner thread (11) of the outer side wall of the spear cover (1) is threaded to the outer thread of the barrel neck. A sealing ring (7) is provided between the outer side wall of the spear cover (1) and the cylindrical mounting part (12). After the spear cover (1) is threaded to the barrel body (6), the top of the barrel body (6) abuts against the sealing ring (7) to achieve a seal. A handle cover (8) is provided between the lower end of the neck of the barrel body (6) and the bottom surface of the spear cover (1). The handle cover (8) is fitted into the outer side of the neck of the barrel body (6) from top to bottom. After the spear cover (1) is tightened, the lower part is pressed against the top of the handle cover (8) for fixation.

8. A well-sealed wine barrel according to claim 7, characterized in that: The bottom of the barrel (6) is connected to a base (9).

9. A wine barrel with good sealing performance according to claim 8, characterized in that: The barrel body (6) and the base (9) are both made of stainless steel and are welded together as one piece.