A wine spear

Abstract

The present invention provides a wine spear, belonging to the technical field of wine and beverage equipment. It solves the problem of reduced sealing performance of existing wine spears during use. The wine spear includes a valve body, a valve seat, and a wine outlet pipe. The valve seat is slidably arranged in the valve body, an air inlet passage is formed between the valve seat and the valve body, and a wine outlet passage is formed inside the wine outlet pipe. An outer spring is provided in the valve body, and a valve core and an inner spring are provided in the wine outlet pipe. The upper end of the wine outlet pipe is fixed to the valve seat, and the inner spring is supported on the wine outlet pipe. The valve body has an upwardly disposed limit surface, and the outer peripheral surface of the valve seat has a radially outwardly protruding abutment portion. When the valve seat descends and opens the air inlet passage, the abutment portion can abut downward against the limit surface. The wine spear always has good sealing performance during use.

Description

Technical Field

[0001] The invention belongs to the technical field of wine and beverage equipment and relates to a wine spear. Background Art

[0002] With the improvement of living standards, people have higher requirements for drinking. Canned and bottled beer can hardly meet people's drinking needs. More and more people hope to drink fresh, hygienic, delicious and pure beer. A wine barrel is a tool for holding wine. Generally, a wine spear is provided at the barrel mouth of the wine barrel. The wine spear cooperates with the dispenser to squeeze out the wine in the wine barrel.

[0003] As disclosed in the patent application (application number: 201710026052.X), the wine spear includes a valve body and a wine outlet pipe, an air inlet passage is formed between the valve body and the wine outlet pipe, a valve core capable of controlling the on and off of the wine outlet pipe and a return spring capable of moving the valve core upward are provided in the wine outlet pipe, the wine outlet pipe includes an upper tube body and a lower tube body, an air inlet passage is formed between the valve body and the upper tube body, a wine outlet passage is formed inside the upper tube body, and a retaining spring is fixed on the lower tube body. As described in paragraph 57 of its specification, "the upper surface of the connecting portion is a limiting surface, a retaining spring is provided in the sleeve of the retaining groove, the inner edge of the retaining spring is embedded in the retaining groove and the lower side surface of the retaining spring is arranged opposite to the limiting surface. During installation, the lower tube body is passed through the valve body so that the retaining groove is higher than the limiting surface, and then the retaining spring is embedded in the retaining groove. The installation is convenient and quick, and the retaining spring has a certain width. When it is affected by the wine bag When the wine is taken out, the top core of the dispenser presses the upper tube body downward, and the upper tube body moves downward to open the air intake passage, and then the upper tube body presses the valve core downward to open the wine outlet passage, and finally the upper tube body presses downward against the lower tube body to achieve position limiting. Therefore, in actual use, the lower tube body is continuously subjected to the weight of the wine and is frequently impacted and pressed by the upper tube body, which will cause the retaining spring hanging on the valve body to deform, thereby affecting the position accuracy and connection stability of the lower tube body, and ultimately affecting the sealing performance of the air intake passage between the upper tube body and the valve body, as well as the sealing performance of the upper tube body and the lower tube body for wine. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a wine spear to solve the problem that the sealing performance of the existing wine spear decreases during use.

[0005] When the valve seat is lowered, the valve core is pressed down and the valve body is pressed down, and the wine outlet passage is opened, and the wine outlet passage is opened. When the valve seat is lowered, the valve core is pressed down and the wine outlet passage is opened. When the valve seat is lowered, the valve core is pressed down and the wine outlet passage is opened. When the valve seat is lowered, the valve core is pressed down and the wine outlet passage is opened.

[0006] The valve body is fixedly installed at the barrel mouth of the wine barrel, the lower end of the wine outlet pipe extends into the wine barrel, and the wine bag in the wine barrel is fixed at the lower end of the wine outlet pipe, that is, the air intake passage between the valve seat and the valve body is connected with the inner cavity of the wine barrel, and the wine outlet passage inside the wine outlet pipe is connected with the inner cavity of the wine bag. Under the action of the outer spring, the valve seat presses upward against the valve body to form a seal to block the air intake passage, and under the action of the inner spring, the valve core presses upward against the wine outlet pipe to form a seal to block the wine outlet passage. When taking wine, the dispenser is connected to the valve body, and the top core of the dispenser extends downward into the valve body and is opposite to the upper end face of the valve core. The silicone sleeve fixed on the top core abuts against the upper end of the wine outlet pipe. The dispenser handle is operated to move the top core downward, and the silicone sleeve on the top core presses the wine outlet pipe downward. The wine outlet pipe and the valve seat move downward synchronously, and the valve seat opens the air intake passage. During this process, the valve core always abuts against the wine outlet pipe to block the wine outlet passage. When the abutting portion on the valve seat abuts downward against the limiting surface of the valve body, so that the valve seat and the wine outlet pipe cannot continue to descend, the silicone sleeve deforms to enable the top core to continue to move downward and press the valve core downward, so that the valve core moves downward relative to the wine outlet pipe, opening the wine outlet passage. Unlike existing designs in which the wine outlet pipe, which bears the weight of the wine in the wine bag, is attached to the valve body via a retaining spring, which constantly bears external forces and also needs to withstand the downward pressure of the valve seat, the present invention secures the wine outlet pipe, which bears the weight of the wine in the wine bag, directly to the valve seat. This pipe rises and falls with the valve seat, ensuring a constant, stable seal between the valve seat and the wine outlet pipe, unaffected by frequent wine removal. Furthermore, the abutment portion is separated from the stop surface before wine removal and is protected from external forces. After the push core presses down on the valve seat to open the air intake, the valve seat is restrained by the abutment portion, which bears downward pressure and the weight of the wine. The abutment portion transmits support to the valve body, preventing deformation and other defects. This provides greater structural stability, ensuring a secure seal between the valve seat and the valve body. Furthermore, the abutment portion is located on the outer circumference of the valve seat, further outwardly supporting the valve seat. This provides a more stable support and position for the valve seat, further ensuring the stability of the valve seat and the wine outlet pipe, and enhancing the seal between the valve seat and the valve body.

[0007] In the aforementioned wine spear, the limiting surface is annular and arranged around the valve seat, and the abutting portion is annular along the circumference of the valve seat. The annular abutting portion has a larger diameter, which abuts against the limiting surface more stably, thereby ensuring the stability of the valve seat and the wine outlet pipe.

[0008] In the aforementioned wine spear, the abutment portion includes an annular ridge circumferentially disposed on the outer circumference of the valve seat and a plurality of abutment protrusions located on the underside of the annular ridge. When the valve seat descends and opens the air intake passage, the undersides of the abutment protrusions can abut downward against the stop surface. The abutment protrusions abut against the stop surface, creating a gap between the annular ridge and the stop surface, allowing gas to pass into the wine barrel.

[0009] In the aforementioned wine spear, the inner circumferential surface of the lower end of the valve body has a circumferentially extending support ridge, with a plurality of abutting protrusions evenly distributed along the circumference of the annular ridge. The outer spring is sleeved onto the valve seat, with the lower end of the outer spring abutting the upper side of the support ridge and the upper end abutting the lower sides of the abutting protrusions. This ensures the stability of the outer spring, and thus the stability of the elastic force exerted by the outer spring on the valve seat.

[0010] In the aforementioned wine spear, a sealing sleeve made of elastic material is fitted and fixed to the inner side surface of the upper end of the wine outlet tube. The upper end of the sealing sleeve extends upward from the upper end surface of the wine outlet tube and forms a deformable portion for the top core of the dispenser to press against. A silicone sleeve on the outer side of the top core either presses downward against the upper end surface of the deformable portion or is inserted into the deformable portion and acts on the inner side surface of the deformable portion, thereby pushing the wine tube and valve seat downward. When the abutment portion of the valve seat abuts against the limit surface and cannot descend further, the silicone sleeve further compresses the deformable portion, causing the deformable portion to expand and deform radially outward and contract axially, causing the top core to descend further and press against the valve core to open the wine outlet passage. This structure opens the wine outlet passage by further compressing the deformable portion of the sealing sleeve, thereby improving the sealing performance between the silicone sleeve and the sealing sleeve to withstand the pressure of the wine.

[0011] In the aforementioned wine spear, the valve body comprises a circular bottom cover and an integrally formed outer and inner cylinder. The bottom cover is fixed to the bottom of the outer cylinder, and an upwardly protruding stopper is provided on the upper side of the bottom cover. This stopper surrounds the valve seat, and the stopper surface is the upper end face of the stopper. The structure of the outer, inner, and stopper bodies provides a high structural strength for the valve seat. The upwardly protruding stopper provides strong axial support, thereby providing stable support for the abutment portion of the valve seat.

[0012] In the aforementioned wine spear, the limiting cylinder is located below the inner cylinder and is coaxially arranged with the inner cylinder. A gas gap is formed between the upper end surface of the limiting cylinder and the lower end surface of the inner cylinder, communicating with the gas passage. The inner diameter of the limiting cylinder is smaller than that of the inner cylinder. The outer circumferential surface of the abutment portion slidably engages with the inner circumferential surface of the inner cylinder, and the abutment portion is located above the limiting cylinder. The inner cylinder guides the valve seat in its lifting and lowering, ensuring its stability. Combined with the abutment support provided by the limiting surface against the abutment portion, this ensures the stability of the valve seat and the wine outlet pipe, thereby ensuring sealing performance.

[0013] In the aforementioned wine spear, the outer edge of the bottom cover is circumferentially provided with a plurality of upwardly directed connecting plates, each of which has a latching block on its inner side. The outer circumferential surface of the lower end of the outer cylinder is circumferentially provided with a plurality of latching grooves. The lower end of the outer cylinder abuts against the upper side of the bottom cover. The connecting plates are arranged around the outer cylinder, and the latching blocks are engaged in the latching grooves. The bottom cover and the outer cylinder are connected by the latching blocks and the latching grooves, making assembly convenient and the connection reliable.

[0014] In the aforementioned wine spear, the outer edge of the bottom cover is further circumferentially provided with an upwardly protruding reinforcement plate, and the upper side of the bottom cover is further provided with a plurality of radially arranged reinforcement ribs, one end of each of which is fixedly connected to the inner side of the reinforcement plate and the other end to the outer side of the retaining cylinder. The provision of the reinforcement plate and reinforcement ribs improves the structural strength of the bottom cover and the retaining cylinder.

[0015] In the aforementioned wine spear, the valve seat fixing sleeve is mounted at the upper end of the wine outlet pipe, and a sealing ring is compressed between the inner side of the valve seat and the outer side of the upper end of the wine outlet pipe. The outer edge of the lower end of the wine outlet pipe has a flange along its circumference for connection to a wine bag. A support sleeve is threadedly fixed within the wine outlet pipe. The lower end of the inner spring abuts the support sleeve, while the upper end abuts the valve core. Under the action of the inner spring, the valve core abuts upward against the wine outlet pipe, forming a seal. The valve core and inner spring are located within the wine outlet pipe and are not affected by the rise and fall of the valve seat and wine outlet pipe, ensuring a reliable seal for the wine outlet passage.

[0016] Compared with the prior art, this wine spear has the following advantages:

[0017] 1. Since the present application fixes the wine outlet pipe used to bear the weight of the wine in the wine bag directly to the valve seat, it rises and falls together with the valve seat, which makes the valve seat and the wine outlet pipe always fixed. The sealing relationship formed between the two is relatively stable and will not be affected by frequent wine removal operations.

[0018] 2. After the top core presses down on the valve seat to open the air intake passage, the valve seat is limited by the abutment part pressing down on the limit surface of the valve body. The downward pressure on the valve seat and the weight of the wine are transmitted to the valve body through the abutment part for support. There will be no defects such as deformation, and it has high structural stability to ensure the sealing performance of the valve seat and the valve body.

[0019] 3. Since the abutment portion is located on the outer peripheral surface of the valve seat and the support position is further outward, the support limit of the valve seat is more stable, further ensuring the stability of the valve seat and the wine outlet pipe, so that the sealing performance of the valve seat and the valve body is better.

[0020] 4. Since the upper end of the sealing sleeve extends upward from the upper end surface of the wine pipe and forms a deformation part for the top core of the dispenser to press, the silicone sleeve on the outside of the top core acts on the deformation part, thereby pushing the wine pipe and the valve seat downward. When the abutting part of the valve seat abuts on the limit surface and cannot continue to descend, the silicone sleeve further squeezes the deformation part, causing the top core to further descend and press the valve core to open the wine outlet passage. This structure opens the wine outlet passage by further squeezing the deformation part of the sealing sleeve, so the sealing performance between the silicone sleeve and the sealing sleeve is better to withstand the pressure of the wine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural cross-sectional view of a wine spear.

[0022] Figure 2 yes Figure 1 A magnified view of the structure at point A in the middle.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the valve seat.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the bottom cover.

[0025] Figure 5 yes Figure 1 A magnified view of the structure at point B.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the wine outlet pipe.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the sealing sleeve.

[0028] Figure 8 It is a schematic diagram of the structure when the dispenser is assembled on the wine spear.

[0029] Figure 9 It is a structural diagram of the dispenser's silicone sleeve when it is inserted into the sealing sleeve.

[0030] Figure 10 It is a structural diagram of the distributor's silicone sleeve pressing against the valve seat and opening the air intake passage.

[0031] Figure 11 It is a structural diagram of the dispenser when the top core presses the valve core and opens the wine outlet passage.

[0032] Figure 12 It is a structural cross-sectional view of the wine spear in Example 2.

[0033] In the figure, 1, valve body; 11, bottom cover; 111, limiting cylinder; 112, limiting surface; 113, supporting ridge; 114, connecting plate; 115, clamping block; 116, reinforcing plate; 117, reinforcing rib; 12, outer cylinder; 121, clamping groove; 13, inner cylinder; 14, sealing ridge; 15, sealing ring; 2, valve seat; 21, abutment portion; 211, annular ridge; 212, abutment ridge; 213, air gap; 22 , sealing cone; 23, clamping edge; 3, wine outlet pipe; 31, flange; 32, support sleeve; 33, sealing part; 331, limiting groove; 332, through hole; 34, connecting part; 341, connecting convex edge; 4, valve core; 5, outer spring; 6, inner spring; 7, sealing sleeve; 71, deformation part; 72, sealing ring; 73, rubber strip; 8, air inlet passage; 81, air gap; 9, wine outlet passage; 10, top core; 101, silicone sleeve. DETAILED DESCRIPTION

[0034] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0035] Example 1:

[0036] like Figure 1 As shown, a wine spear includes a valve body 1, a valve seat 2 and a wine outlet pipe 3. The valve body 1 and the valve seat 2 are both cylindrical. The valve seat 2 is vertically slidably arranged in the valve body 1, and an air intake passage 8 is formed between the outer side of the valve seat 2 and the inner side of the valve body 1. The upper part of the inner circumference of the valve body 1 has an annular sealing ridge 14, and a sealing ring 15 is fixed on the lower side of the sealing ridge 14. Figure 2 、 Figure 3 As shown, the outer circumferential surface of the valve seat 2 has a rest portion 21 in the circumferential direction, and the rest portion 21 includes an annular ridge 211 circumferentially arranged on the outer circumferential surface of the valve seat 2 and a plurality of resting protrusions 212 located on the lower side of the annular ridge 211. The upper side surface of the annular ridge 211 has a sealing cone surface 22 in the circumferential direction. An outer spring 5 is provided in the valve body 1, and the upper end of the outer spring 5 rests upward on the lower sides of the plurality of resting protrusions 212. Under the action of the outer spring 5, the sealing cone surface 22 of the valve seat 2 rests upward on the sealing ring 15 to form a seal to block the intake passage 8. The lower outer edge of the wine outlet pipe 3 is circumferentially provided with a flange 31 for connecting to a wine bag. The valve seat 2 is fixedly mounted on the upper end of the wine outlet pipe 3, with a sealing ring 72 compressed between the inner side of the valve seat 2 and the outer side of the upper end of the wine outlet pipe 3. A valve core 4 and an inner spring 6 are located within the wine outlet pipe 3. A sealing step is provided on the inner circumferential surface of the upper end of the wine outlet pipe 3. Under the action of the inner spring 6, the valve core 4 abuts the sealing step to seal the wine outlet passage 9. The valve body 1 has an upwardly directed inner limit surface 112. This limit surface 112 is annular and surrounds the valve seat 2. An annular ridge 211 and a plurality of abutment protrusions 212 are located above the limit surface 112. When the valve seat 2 descends to open the air intake passage 8, the lower sides of the abutment protrusions 212 can abut against the limit surface 112.

[0037] Specifically, combined Figure 4 、 Figure 5As shown, the valve body 1 includes a circular bottom cover 11 and an outer cylinder 12 and an inner cylinder 13 of an integral structure. The outer edge of the bottom cover 11 has a plurality of upwardly arranged connecting plates 114 along the circumferential direction, and a clamping block 115 is provided on the inner side surface of the connecting plate 114. A plurality of clamping grooves 121 are opened circumferentially on the outer circumferential surface of the lower end of the outer cylinder 12. The lower end surface of the outer cylinder 12 abuts against the upper side surface of the bottom cover 11. The plurality of connecting plates 114 are arranged around the outer cylinder 12, and the clamping block 115 is clamped in the clamping groove 121 to achieve a fixed connection between the bottom cover 11 and the outer cylinder 12. The upper side of the bottom cover 11 has an upwardly protruding limiting cylinder 111. This limiting cylinder 111 is arranged around the valve seat 2. The limiting surface 112 is the upper end surface of the limiting cylinder 111. The outer edge of the bottom cover 11 also has an upwardly protruding reinforcement plate 116 circumferentially. The upper side of the bottom cover 11 also has a plurality of radially arranged reinforcement ribs 117, one end of which is fixedly connected to the inner side of the reinforcement plate 116 and the other end is fixedly connected to the outer side of the limiting cylinder 111. The inner edge of the lower end of the limiting cylinder 111 has an annular support ridge 113 circumferentially. The outer spring 5 is located within the limiting cylinder 111, and the lower end of the outer spring 5 is supported against the support ridge 113. The limiting cylinder 111 is located below the inner cylinder 13, and the limiting cylinder 111, the outer cylinder 12 and the inner cylinder 13 are coaxially arranged. An air gap 81 connected to the air intake passage 8 is formed between the upper end surface of the limiting cylinder 111 and the lower end surface of the inner cylinder 13. The inner diameter of the limiting cylinder 111 is smaller than the inner diameter of the inner cylinder 13. The outer peripheral surface of the annular convex edge 211 is slidably fitted with the inner peripheral surface of the inner cylinder 13. A number of air notches 213 are circumferentially opened on the outer peripheral surface of the annular convex edge 211 for gas to enter the air intake passage 8 when the valve seat 2 descends. A number of abutting protrusions 212 are located above the limiting cylinder 111.

[0038] Combine Figure 6 、 Figure 7As shown, the upper end of the wine outlet pipe 3 has a radially inwardly contracted sealing portion 33. The sealing portion 33 has a cylindrical, upwardly protruding connecting portion 34. The inner diameter of the connecting portion 34 is smaller than that of the wine outlet pipe 3, resulting in the lower side of the sealing portion 33 forming a sealing step. The valve seat 2 has an inwardly protruding locking edge 23 on its inner side, and a circumferentially extending connecting ridge 341 on the outer circumference of the connecting portion 34. The valve seat 2 is sleeved onto the wine outlet pipe 3, with the locking edge 23 engaging the connecting ridge 341. A sealing sleeve 7 made of an elastic material is fixedly attached to the inner circumference of the connecting portion 34 and the lower side of the sealing portion 33. The upper end of the sealing sleeve 7 extends upward from the upper end of the wine outlet pipe 3 and forms a deformable portion 71 for the top core 10 of the dispenser to press against. The inner circumference of the sealing sleeve 7 is a tapered surface with a gradually decreasing inner diameter from top to bottom. A limiting groove 331 is circumferentially defined on the upper side of the sealing portion 33. Several through-holes 332 are defined on the inner circumference of the sealing portion 33, extending through the limiting groove 331. A sealing ring 72 is embedded within the limiting groove 331 and integrally connected to the sealing sleeve 7 via a rubber strip 73 extending through the through-holes 332. The limiting groove 331 and the sealing sleeve 7 constrain the sealing ring 72, ensuring a tight seal between the wine outlet pipe 3 and the valve seat 2. A support sleeve 32 is threadedly secured within the wine outlet pipe 3. The lower end of the inner spring 6 rests against the support sleeve 32, while the upper end rests against the valve core 4. Under the action of the inner spring 6, the valve core 4 presses upward against the sealing sleeve 7 on the lower side of the sealing portion 33, forming a seal and thereby blocking the wine outlet passage 9.

[0039] When taking wine Figure 8 As shown, the distributor is connected to the valve body 1, and the top core 10 of the distributor has not yet extended into the valve body 1. Figure 9 As shown, the dispenser handle is manipulated to move the top core 10 downward, and the silicone sleeve 101 on the top core 10 is inserted into the sealing sleeve 7, and the outer circumference of the silicone sleeve 101 is pressed tightly against the inner circumference of the sealing sleeve 7, and the top core 10 extends into the valve body 1 and faces the valve core 4. Figure 10 As shown, the top core 10 continues to descend, and when the tension between the silicone sleeve 101 and the sealing sleeve 7 is greater than the elastic force of the outer spring 5, the valve seat 2 and the wine outlet pipe 3 descend synchronously, so that the air inlet passage 8 is opened until the abutting convex portion 212 abuts against the limit surface 112. Figure 11 As shown, the top core 10 continues to press downward, and the valve seat 2 cannot continue to descend, causing the sealing sleeve 7 to further expand and deform radially, and the silicone sleeve 101 to contract and deform radially. The silicone sleeve 101 is further squeezed downward into the sealing sleeve 7, causing the top core 10 to move downward relative to the wine outlet pipe 3 and press the valve core 4, thereby opening the wine outlet passage 9.

[0040] Example 2:

[0041] The structure of the wine spear is basically the same as that of the first embodiment, except that Figure 12As shown, the deformation portion 71 at the upper end of the sealing sleeve 7 is longer, and the deformation portion 71 extends upward out of the valve seat 2. When taking wine, the silicone sleeve 101 on the top core 10 of the dispenser presses on the upper end surface of the deformation portion 71 and pushes the valve seat 2 downward. When the abutment portion 21 of the valve seat 2 is limited and abuts against the limiting surface 112, the longer deformation portion 71 can expand radially, so that the top core 10 continues to descend and presses the valve core 4 to open the wine outlet passage 9.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0043] Although the terms valve body 1, bottom cover 11, and limiting cylinder 111 are frequently used herein, the possibility of using other terms is not excluded. 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

1. A wine spear, comprising a valve body (1), a cylindrical valve seat (2) and a wine outlet pipe (3) at the lower end for connecting to a wine bag, wherein the valve seat (2) is vertically slidably arranged in the valve body (1), and an air inlet passage (8) is formed between the valve seat (2) and the valve body (1), and a wine outlet passage (9) is formed inside the wine outlet pipe (3), an outer spring (5) is provided in the valve body (1) to make the valve seat (2) press upward against the valve body (1) to block the air inlet passage (8), and a valve core (4) and an inner spring (6) are provided in the wine outlet pipe (3), characterized in that: The upper end of the wine outlet pipe (3) is fixed on the valve seat (2), and a seal is formed between the wine outlet pipe (3) and the valve seat (2). The inner spring (6) is supported on the wine outlet pipe (3) and causes the valve core (4) to press upward against the wine outlet pipe (3) to block the wine outlet passage (9). The valve body (1) has a limit surface (112) located on the inner side and arranged upward. The outer peripheral surface of the valve seat (2) has a radially outwardly protruding abutting portion (21). The abutting portion (21) is located above the limit surface (112), and when the valve seat (2) descends and opens the air intake passage (8), the abutting portion (21) can press downward against the limit surface (112).

2. The wine spear according to claim 1, characterized in that The limiting surface (112) is annular and is arranged around the valve seat (2), and the abutting portion (21) is annular along the circumference of the valve seat (2).

3. The wine spear according to claim 2, characterized in that The abutting portion (21) comprises an annular convex edge (211) circumferentially arranged on the outer peripheral surface of the valve seat (2) and a plurality of abutting protrusions (212) located on the lower side of the annular convex edge (211). When the valve seat (2) descends and the air intake passage (8) is opened, the lower side of the abutting protrusion (212) can abut downward against the limit surface (112).

4. The wine spear according to claim 3, characterized in that The inner circumferential surface of the lower end of the valve body (1) has a supporting ridge (113) in the circumferential direction, and a plurality of abutting ridges (212) are evenly distributed along the circumference of the annular ridge (211). The outer spring (5) is sleeved on the valve seat (2), and the lower end of the outer spring (5) abuts against the upper side of the supporting ridge (113), and the upper end abuts against the lower side of a plurality of abutting ridges (212).

5. The wine spear according to any one of claims 1 to 4, characterized in that A sealing sleeve (7) made of elastic material is fixedly attached to the inner side surface of the upper end of the wine outlet pipe (3), and the upper end of the sealing sleeve (7) extends upward from the upper end surface of the wine outlet pipe (3) to form a deformation portion (71) for the top core of the dispenser to press against the top.

6. The wine spear according to any one of claims 1 to 4, characterized in that The valve body (1) comprises a circular bottom cover (11) and an outer cylinder (12) and an inner cylinder (13) of an integral structure. The bottom cover (11) is fixed to the bottom of the outer cylinder (12). An upwardly protruding limiting cylinder (111) is provided on the upper side of the bottom cover (11). The limiting cylinder (111) is arranged around the valve seat (2). The limiting surface (112) is the upper end surface of the limiting cylinder (111).

7. The wine spear according to claim 6, characterized in that The limiting cylinder (111) is located below the inner cylinder (13), and the limiting cylinder (111) and the inner cylinder (13) are coaxially arranged. An air gap (81) connected to the air intake passage (8) is formed between the upper end surface of the limiting cylinder (111) and the lower end surface of the inner cylinder (13). The inner diameter of the limiting cylinder (111) is smaller than the inner diameter of the inner cylinder (13). The outer peripheral surface of the abutting portion (21) is slidably matched with the inner peripheral surface of the inner cylinder (13), and the abutting portion (21) is located above the limiting cylinder (111).

8. The wine spear according to claim 6, characterized in that The outer edge of the bottom cover (11) is provided with a plurality of upwardly disposed connecting plates (114) along the circumferential direction, and the inner side surface of the connecting plates (114) is provided with a clamping block (115). The outer circumferential surface of the lower end of the outer cylinder (12) is provided with a plurality of clamping grooves (121) along the circumferential direction, and the lower end surface of the outer cylinder (12) is against the upper side surface of the bottom cover (11), and the plurality of connecting plates (114) are provided around the outer cylinder (12), and the clamping block (115) is clamped in the clamping groove (121).

9. The wine spear according to claim 6, characterized in that The outer edge of the bottom cover (11) is also circumferentially provided with an upwardly protruding reinforcing plate (116), and the upper side of the bottom cover (11) is also provided with a plurality of radially arranged reinforcing ribs (117), one end of the reinforcing rib (117) is fixedly connected to the inner side of the reinforcing plate (116), and the other end is fixedly connected to the outer side of the limiting cylinder (111).

10. The wine spear according to any one of claims 1 to 4, characterized in that The valve seat (2) is fixedly sleeved on the upper end of the wine outlet pipe (3), and a sealing ring (72) is pressed between the inner side surface of the valve seat (2) and the outer side surface of the upper end of the wine outlet pipe (3). The outer edge of the lower end of the wine outlet pipe (3) has a flange (31) for connecting to a wine bag along the circumferential direction. A support sleeve (32) is screwed and fixed in the wine outlet pipe (3). The lower end of the inner spring (6) abuts against the support sleeve (32), and the upper end abuts against the valve core (4). Under the action of the inner spring (6), the valve core (4) abuts upward against the wine outlet pipe (3) to form a seal.

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