CN115676753B - A top core of a dispenser - Google Patents

Abstract

The invention provides a top core of a dispenser, and belongs to the technical field of wine drinking equipment. The wine pipe connection structure solves the problem of how to ensure the stability of the connection of the wine pipe under the condition of reducing the cost of the existing top core. The top core of this distributor, including last core and lower core, the top core still is used for connecting the column joint of wine pipe including having wine hole and one end, has seted up upper end open-ended installation cavity in the lower core, runs through on the bottom surface of installation cavity and has seted up out wine hole, connects and peg graft in the installation cavity and make wine hole other end and go out wine hole butt joint intercommunication mutually, and connect and form sealedly between the installation cavity inner wall, has the location portion of fixing a position at the installation intracavity with the joint on going up the core. The top core ensures the stability of the connection of the wine pipe under the condition of reducing the cost.

Description

A top core of a dispenser

Technical Field

The invention belongs to the technical field of wine drinking equipment and relates to a top core of a dispenser.

Background Art

The distributor is a device connected to the top of the beer barrel and cooperates with the beer spear in the beer barrel to draw out the beer in the beer barrel. When the operator pulls the handle on the distributor, the beer pipe in the distributor can be moved telescopically. When the beer pipe moves downward, it can push down the valve core on the beer spear, so that the beer path is opened. At the same time, the external air source can also be connected to the beer barrel, so that the gas passes through the distributor and the beer spear in turn into the beer barrel, thereby pressing the beer in the beer barrel out.

A traditional dispenser, such as the beer barrel outlet valve disclosed in the patent document (application number: 201310513342.9), is a dispenser, including a valve body, a wine guide tube and a handle. The center of the valve body has a guide hole passing through it, and the side of the valve body has an air inlet pipe connected to the guide hole. The wine guide tube is also called a top core, which is located at the guide hole and is sealed with the valve body. In addition to being used to guide the wine in the barrel, it also needs to be pressed down and pushed down by the handle to open the valve core of the wine spear to connect the wine path and the air path. An air outlet that can communicate with the inside of the beer barrel is formed between the bottom of the valve body and the wine guide tube. The handle is hinged. The handle is on the valve body and connected to the wine guide tube. The side of the wine guide tube has an air intake structure. The handle of the wine outlet valve is hinged on the valve body, and the convex head on the handle is always stuck in the groove of the wine guide tube to realize the linkage between the two. Therefore, the wine guide tube is difficult to remove from the valve body unless the handle is removed. The wine outlet valve is usually used as an inseparable whole and the whole is flushed after use. However, with the improvement of food safety requirements, flushing the whole, especially flushing the inside of the wine guide tube, is also more troublesome. For this reason, a plastic top core can be used, such as a disposable top core and wine tube. The top core and wine tube can be directly replaced after use.

However, during operation, the upper end of the top core needs to withstand the pressure of the handle, and the lower end needs to press down the valve core of the wine spear. Therefore, the top core will be subjected to a large load, and relatively strong plastic needs to be used, while the wine tube can use relatively low-cost plastic. The wine tube and the top core need to be sleeved and fixed with adhesive. The effect of bonding different materials with adhesive is poor. During use, the pressure of wine inside the wine tube is relatively high, which makes the connection between the wine tube and the top core unstable, and wine leakage is easy to occur.

Summary of the invention

The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a top core of a distributor to solve the problem of how the existing top core can ensure the stability of the wine pipe connection while reducing the cost.

The object of the present invention can be achieved through the following technical solutions: a top core of a dispenser, comprising an upper core body and a lower core body which are sleeved and fixedly connected to each other, characterized in that the top core also comprises a columnar joint having a wine passing hole and one end for connecting a wine pipe, a mounting cavity with an upper end opening is provided in the lower core body, a wine outlet hole is provided through the bottom surface of the mounting cavity, the joint is inserted into the mounting cavity so that the other end of the wine passing hole is connected to the wine outlet hole, and a seal is formed between the joint and the inner wall of the mounting cavity, and a positioning portion for positioning the joint in the mounting cavity is provided on the upper core body.

The upper core body and the lower core body can be made of ABS material, while the wine pipe is made of PVC material to reduce material costs. For this reason, the present application sets an independent joint, which can be relatively small in size and is made of the same PVC material as the wine pipe. The wine pipe and the joint of the same material are sleeved and fixedly connected by adhesive, which has high connection stability and sealing. At the same time, a separate upper core body and a lower core body are set, and the joint is fixedly connected to the lower core body through the upper core body, so that the joint of different materials is connected to the lower core body through a mechanical connection structure. Specifically, an installation cavity is set in the lower core body, and the upper end of the installation cavity is open to facilitate the insertion of the columnar joint into the installation cavity from top to bottom. The upper end of the wine passing hole is used to connect the wine pipe, and the lower end of the wine passing hole is connected to the wine outlet hole on the bottom surface of the installation cavity, and a seal is formed between the joint and the inner wall of the installation cavity. The installation cavity can constrain and limit the joint to ensure the stability of the joint and prevent wine from leaking from the docking position between the wine outlet hole and the wine passing hole. The upper core body and the lower core body are sleeved and fixedly connected to each other, so that the positioning part on the upper core body positions the joint in the installation cavity of the lower core body, so that joints of different materials and the lower core body are fixedly connected by a mechanical connection method positioned by the positioning part, and the joints and wine tubes of the same material can be fixedly connected by adhesive bonding, thereby ensuring the stability and sealing of the wine tube connection while reducing costs. Furthermore, since the lower end of the top core needs to press against the wine spear on the wine barrel when taking wine, different models of wine spears need to match different models of top cores, that is, the structures of the lower ends of different models of top cores are different. The present application sets up independent upper and lower core bodies. The upper core body can adopt a unified structure, and the lower core body can be set with a corresponding structure according to the specific model. Compared with the original integrated top core, the volume of the lower core body is relatively small, and the corresponding mold and other development costs are relatively reduced, which also reduces costs from another perspective.

In the top core of the above-mentioned dispenser, the inner circumference of the installation cavity is a cylindrical surface, the joint is cylindrical, the above-mentioned wine hole is arranged through the axial direction, the joint is vertically inserted in the installation cavity, and a seal is arranged between the outer circumference of the joint and the inner circumference of the installation cavity. The shape of the installation cavity matches the joint, so that the joint remains stable, and a seal is arranged between the two to prevent wine from leaking from between the joint and the lower core.

In the top core of the above-mentioned dispenser, the upper core is columnar, and a clearance hole for the wine pipe to pass through is opened in the axial direction of the upper core. The lower core is cylindrical, and the upper core is inserted downward into the lower core, and the upper core and the lower core are fixedly connected by clamping. The lower core wraps the outer side of the upper core, so that the two are more stable after being combined and fixed, and the wine pipe can pass upward from the clearance hole after the joint is fixed between the two.

In the top core of the above-mentioned distributor, the positioning part is annular and radially protrudes from the hole wall of the clearance hole. The positioning part has a downward end surface, and the lower end surface of the positioning part presses downward against the top of the joint. The positioning part is located on the hole wall of the clearance hole. When the upper core body is pressed downward into the lower core body, the lower end surface of the positioning part presses the joint downward, thereby pressing the joint tightly in the installation cavity, and the connection stability is higher.

In the top core of the above-mentioned distributor, the inner peripheral wall at the lower end of the positioning part has an annular limiting part on the circumference, and the upper end surface of the limiting part is a conical surface with the small end facing downward, and the lower end surface of the limiting part is flush with the lower end surface of the positioning part. During assembly, the wine tube passes downward from the inner hole of the limiting part and is bonded to the joint. The setting of the conical surface facilitates the passage of the wine tube. The aperture of the limiting part is smaller than the aperture of the giving hole. The limiting part can limit the wine tube at the connection position between the wine tube and the joint to ensure the stability of the wine tube.

In the top core of the above-mentioned dispenser, the inner bottom surface of the lower core body has a cylindrical portion arranged around the wine outlet, the inner cavity of the cylindrical portion is the above-mentioned installation cavity, the lower end of the upper core body is inserted between the inner peripheral surface of the upper core body and the outer peripheral surface of the cylindrical portion, and the outer edge of the upper end of the joint has a snap-fitting convex edge along the circumference, and the snap-fitting convex edge is snap-fitted between the lower end surface of the positioning portion and the upper end surface of the cylindrical portion. The interior of the lower core body is hollowed out, and the installation cavity is formed by the cylindrical portion, so as to simplify the structure of the lower core body as much as possible and reduce the development cost of the lower core body. The upper core body is sleeved on the cylindrical portion and the joint, and the snap-fitting convex edge of the joint is clamped to make the joint more stable.

In the top core of the above-mentioned distributor, the inner hole of the lower core is a stepped hole, and the inner diameter of the upper end of the lower core is larger than the inner diameter of the lower end. The inner hole of the lower end with a smaller inner diameter of the lower core is the above-mentioned installation cavity. The upper end of the joint has an extension portion that is cylindrical and protrudes upward, and the lower end face of the positioning portion abuts against the upper end face of the extension portion. The lower core does not have a cylindrical portion, but the inner hole is set as a stepped hole, and the installation cavity is formed by the inner hole with a smaller inner diameter. Therefore, the position of the joint is relatively low, and an extension portion needs to be formed upward at the upper end for the positioning portion of the upper core to abut and position.

In the top core of the above-mentioned dispenser, the wine outlet hole and the wine passing hole are arranged concentrically, the diameter of the wine outlet hole is smaller than the diameter of the wine passing hole, and a blocking ball is also arranged in the wine passing hole, the outer diameter of the blocking ball is larger than the diameter of the wine outlet hole, and there is a gap between the blocking ball and the hole wall of the wine passing hole. A blocking ball is arranged in the wine passing hole, and the blocking ball is a steel ball. When gas is filled in the wine barrel to press the wine out, the wine can push the blocking ball upward and then the wine can be discharged. After the wine is taken out, the blocking ball can drop under its own gravity and block the wine outlet hole, blocking the wine pipe and the wine barrel, and preventing the wine in the wine pipe from flowing back into the wine barrel.

In the top core of the above-mentioned dispenser, the wall of the wine passing hole is provided with an annular limiting convex edge on the circumference, the inner diameter of the limiting convex edge is smaller than the outer diameter of the blocking ball, and the lower end surface of the limiting convex edge is provided with a plurality of limiting protrusions protruding downward. When the wine is pressed out, the blocking ball is pushed upward, and the blocking ball can be pressed upward against the limiting protrusions, which can limit the blocking ball, and the wine can pass through the gap between the limiting protrusions, ensuring smooth wine discharge.

In the top core of the above-mentioned distributor, the upper outer edge of the lower core body has a plurality of snap-fitting protrusions in the circumferential direction, the upper outer peripheral surface of the upper core body has an annular convex edge in the circumferential direction, and the lower end surface of the annular convex edge has a plurality of snap-fitting grooves in the circumferential direction, and the snap-fitting protrusions are snap-fitted in the snap-fitting grooves, so that the upper core body and the lower core body are mutually sleeved and snap-fitted, and the operation is convenient and quick.

Compared with the prior art, the top core of the dispenser has the following advantages:

1. Since the positioning part on the upper core body positions the joint in the installation cavity of the lower core body, the joints made of different materials are fixedly connected to the lower core body through the mechanical connection method positioned by the positioning part, and the joints and wine pipes made of the same material can be fixedly connected by adhesive bonding, thereby ensuring the stability and sealing of the wine pipe connection while reducing costs.

2. Since the upper core and lower core are set up independently, the upper core can adopt a unified structure, and the lower core can be set with a corresponding structure according to the specific model. Compared with the original integrated top core, the volume of the lower core is relatively small, and the corresponding mold development cost is relatively reduced, thereby reducing the production cost of the top core.

3. Since there is a sealing ball in the wine hole, when gas is filled into the wine barrel to press the wine out, the wine can push the sealing ball upward and then flow out. After the wine is taken out, the sealing ball can drop under the action of its own gravity and seal the wine outlet, blocking the wine pipe and the wine barrel, preventing the wine in the wine pipe from flowing back into the wine barrel.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the three-dimensional structure of the top core of the dispenser.

FIG. 2 is a longitudinal structural cross-sectional view of the top core of the dispenser.

FIG. 3 is a schematic diagram of the three-dimensional structure of the joint.

Fig. 4 is a cross-sectional view of the structure at A-A in Fig. 2 .

FIG. 5 is a schematic diagram of the three-dimensional structure of the top core of the distributor in the second embodiment.

FIG. 6 is a longitudinal structural cross-sectional view of the top core of the distributor in the second embodiment.

FIG. 7 is a schematic diagram of the three-dimensional structure of the joint in the second embodiment.

In the figure, 1, upper core body; 11, clearance hole; 12, positioning part; 13, limiting part; 14, limiting protrusion; 15, annular convex edge; 151, snap-in groove; 16, reinforcing rib; 2, lower core body; 21, installation cavity; 22, wine outlet; 23, cylindrical part; 24, snap-in protrusion; 25, pressing part; 251, rubber ring; 252, wine outlet; 3, joint; 31, wine outlet; 32, limiting convex edge; 33, limiting protrusion; 34, snap-in convex edge; 35, extension part; 36, sealing groove; 37, sealing ring; 4, sealing ball; 5, wine tube.

DETAILED DESCRIPTION

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

Embodiment 1:

As shown in Figures 1 and 2, a top core of a dispenser includes an upper core body 1, a lower core body 2 and a joint 3. The upper core body 1 and the lower core body 2 are both made of ABS material, and the joint 3 is made of PVC material. The upper core body 1 is columnar, and has an annular convex edge 15 circumferentially on the outer peripheral surface of the upper end of the upper core body 1. The upper end surface of the annular convex edge 15 is flush with the upper end surface of the upper core body 1. The upper core body 1 is axially provided with a clearance hole 11. The clearance hole 11 makes the upper core body 1 thin-walled, and the hole wall of the clearance hole 11 protrudes radially inward to form an annular positioning portion 12, and the positioning portion 12 has a flat lower end surface. The lower core 2 is cylindrical, with an open upper end and an upwardly protruding cylindrical portion 23 on the inner bottom surface of the lower end. The cylindrical portion 23 is coaxially arranged with the lower core 2. The inner hole of the cylindrical portion 23 is a mounting cavity 21 with an open upper end, and a wine outlet hole 22 is provided through the bottom surface of the cylindrical portion 23. The joint 3 is cylindrical and has a wine outlet hole 31 axially provided through it. The joint 3 is vertically inserted into the mounting cavity 21 of the cylindrical portion 23, and the upper end of the joint 3 is higher than the cylindrical portion 23. The upper core 1 is inserted into the lower core 2 and fixed by clamping, and the lower end surface of the positioning portion 12 is pressed downward against the top of the joint 3, positioning the joint 3 in the mounting cavity 21 of the lower core 2.

Specifically, as shown in FIG. 3 and FIG. 4 , the cylindrical portion 23 is cylindrical, so that the inner circumference of the installation cavity 21 is a cylindrical surface, and two sealing grooves 36 are circumferentially opened on the outer circumference of the joint 3, and the two sealing grooves 36 are spaced apart from each other, and sealing rings 37 are sleeved in the sealing grooves 36, and the outer circumference of the joint 3 is matched and fitted with the inner circumference of the installation cavity 21, and the sealing ring 37 is pressed against the inner circumference of the installation cavity 21 to achieve sealing. A snap-fitting convex edge 34 is circumferentially provided on the outer edge of the upper end of the joint 3, and the upper end surface of the snap-fitting convex edge 34 is flush with the upper end surface of the joint 3, and an annular limiting portion 13 is circumferentially provided on the inner circumference of the positioning portion 12, and the upper end surface of the limiting portion 13 is a conical surface with a small end facing downward, and the lower end surface of the limiting portion 13 is flush with the lower end surface of the positioning portion 12. The lower end surface of the positioning portion 12 is provided with a plurality of limiting protrusions 14 in the circumferential direction, and the plurality of limiting protrusions 14 are arranged around the clamping convex edge 34. The lower end surface of the positioning portion 12 is pressed downwardly on the upper end surface of the clamping convex edge 34, so that the lower end surface of the clamping convex edge 34 is pressed on the upper end surface of the cylindrical portion 23, that is, the clamping convex edge 34 is clamped between the positioning portion 12 and the cylindrical portion 23, and the circumferentially arranged limiting protrusions 14 can radially limit the clamping convex edge 34, so that the clamping convex edge 34 remains stable. The upper end port of the wine passing hole 31 in the joint 3 is arranged opposite to the inner hole of the limiting portion 13, for the wine pipe 5 to pass through and connect, and the lower end of the wine passing hole 31 is connected opposite to the wine outlet hole 22. The wine outlet 22 is arranged concentrically with the wine passing hole 31, and the aperture of the wine outlet 22 is smaller than that of the wine passing hole 31. A sealing ball 4 is further arranged in the wine passing hole 31, and the sealing ball 4 is made of a steel ball. The outer diameter of the sealing ball 4 is larger than the aperture of the wine outlet 22, and there is a gap between the sealing ball 4 and the hole wall of the wine passing hole 31. The hole wall of the wine passing hole 31 is circumferentially provided with an annular limiting ridge 32, and the part of the wine passing hole 31 located above the limiting ridge 32 is used for inserting and bonding the wine tube 5, and the inner diameter of the limiting ridge 32 is smaller than the outer diameter of the sealing ball 4. The lower end surface of the limiting ridge 32 is provided with a plurality of limiting ridges 33 protruding downward, and the sealing ball 4 abuts against the upper limiting ridge 33 when discharging wine, and abuts against the bottom surface of the mounting cavity 21 downward to seal the wine outlet 22 when the wine is stopped.

The lower end of the upper core 1 is inserted downwardly between the inner circumference of the lower core 2 and the outer circumference of the cylindrical portion 23. A plurality of reinforcing ribs 16 are provided circumferentially on the outer circumference of the lower end of the upper core 1. The reinforcing ribs 16 are all arranged axially and the outer edges of the reinforcing ribs 16 are against the inner circumference of the lower core 2. A plurality of clamping protrusions 24 are provided circumferentially on the outer edge of the upper end of the lower core 2. The clamping protrusions 24 are in the shape of hooks protruding outward. The annular convex edge 15 is a hollow structure. A plurality of clamping grooves 151 are provided circumferentially on the lower end surface of the annular convex edge 15. The clamping protrusions 24 pass through the clamping grooves 151 upward and hook on the inner bottom surface of the annular convex edge 15, so that the upper core 1 and the lower core 2 are mutually sleeved and clamped. A downwardly protruding pressing portion 25 is provided on the lower end surface of the lower core 2. The pressing portion 25 is cylindrical and is used to press the valve core of the wine spear downward.

Embodiment 2:

The structure of the top core of the dispenser is basically the same as that of the first embodiment, except that, as shown in Fig. 5, Fig. 6 and Fig. 7, the inner hole of the lower core body 2 is a stepped hole, and the inner diameter of the upper end of the lower core body 2 is larger than the inner diameter of the lower end, and the inner hole of the lower end of the lower core body 2 with a smaller inner diameter is a mounting cavity 21, and the upper end of the joint 3 has a cylindrical and upwardly protruding extension 35, and the lower end surface of the positioning portion 12 abuts against the upper end surface of the extension 35. The lower end of the lower core body 2 has a downwardly protruding top pressing portion 25, and a rubber ring 251 is sleeved on the outer wall of the top pressing portion 25, and a plurality of wine passing openings 252 are opened on the lower edge of the top pressing portion 25.

The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Although the terms such as upper core 1, clearance hole 11, and positioning portion 12 are used more frequently in this article, 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 restrictions is contrary to the spirit of the present invention.

Claims (10)

1. A top core of a dispenser, comprising an upper core (1) and a lower core (2) which are sleeved and fixedly connected to each other, characterized in that the top core also comprises a columnar joint (3) having a wine passing hole (31) and one end of which is used to connect to a wine pipe, a mounting cavity (21) with an upper end opening is provided in the lower core (2), a wine outlet hole (22) is provided through the bottom surface of the mounting cavity (21), the joint (3) is inserted into the mounting cavity (21) so that the other end of the wine passing hole (31) is connected to the wine outlet hole (22), and a seal is formed between the joint (3) and the inner wall of the mounting cavity (21), and the upper core (1) has a positioning portion (12) for positioning the joint (3) in the mounting cavity (21). 2. The top core of the dispenser according to claim 1 is characterized in that the inner circumferential surface of the installation cavity (21) is a cylindrical surface, the joint (3) is cylindrical, the wine passing hole (31) is axially penetrated, the joint (3) is vertically inserted in the installation cavity (21), and a sealing member is provided between the outer circumferential surface of the joint (3) and the inner circumferential surface of the installation cavity (21). 3. The top core of the dispenser according to claim 2 is characterized in that the upper core (1) is columnar, and a clearance hole (11) for the wine tube (5) to pass through is axially opened on the upper core (1), and the lower core (2) is cylindrical, and the upper core (1) is inserted downward into the lower core (2), and the upper core (1) and the lower core (2) are fixedly connected by snap-fitting. 4. The top core of the distributor according to claim 3 is characterized in that the positioning portion (12) is annular and radially protrudes from the wall of the clearance hole (11), the positioning portion (12) has a downward end surface, and the lower end surface of the positioning portion (12) is pressed downward against the top of the joint (3). 5. The top core of the dispenser according to claim 4 is characterized in that an annular limiting portion (13) is circumferentially provided on the inner circumferential wall of the positioning portion (12), the upper end surface of the limiting portion (13) is a conical surface with a small end facing downward, and the lower end surface of the limiting portion (13) is flush with the lower end surface of the positioning portion (12). 6. The top core of the dispenser according to claim 3, 4 or 5, characterized in that the inner bottom surface of the lower core body (2) is provided with a cylindrical portion (23) arranged around the wine outlet hole (22), the inner cavity of the cylindrical portion (23) is the above-mentioned installation cavity (21), the lower end of the upper core body (1) is inserted between the inner circumferential surface of the lower core body (2) and the outer circumferential surface of the cylindrical portion (23), and the outer edge of the upper end of the joint (3) is provided with a snap-fitting convex edge (34) in the circumferential direction, and the snap-fitting convex edge (34) is snap-fitted between the lower end surface of the positioning portion (12) and the upper end surface of the cylindrical portion (23). 7. The top core of the distributor according to claim 3, 4 or 5, characterized in that the inner hole of the lower core body (2) is a stepped hole, and the inner diameter of the upper end of the lower core body (2) is larger than the inner diameter of the lower end, the inner hole of the lower end of the lower core body (2) with a smaller inner diameter is the above-mentioned mounting cavity (21), the upper end of the joint (3) has a cylindrical extension portion (35) protruding upward, and the lower end surface of the positioning portion (12) abuts against the upper end surface of the extension portion (35). 8. The top core of the dispenser according to any one of claims 1 to 5, characterized in that the wine outlet hole (22) and the wine passing hole (31) are arranged concentrically, the aperture of the wine outlet hole (22) is smaller than the aperture of the wine passing hole (31), and a blocking ball (4) is further provided in the wine passing hole (31), the outer diameter of the blocking ball (4) is larger than the aperture of the wine outlet hole (22), and there is a gap between the blocking ball (4) and the hole wall of the wine passing hole (31). 9. The top core of the dispenser according to claim 8 is characterized in that the wall of the wine passing hole (31) has an annular limiting ridge (32) on its circumference, the inner diameter of the limiting ridge (32) is smaller than the outer diameter of the blocking ball (4), and the lower end surface of the limiting ridge (32) has a plurality of limiting protrusions (33) protruding downward. 10. The top core of the dispenser according to any one of claims 1 to 5, characterized in that the outer edge of the upper end of the lower core body (2) has a plurality of snap-in protrusions (24) in the circumferential direction, the outer peripheral surface of the upper end of the upper core body (1) has an annular ridge (15) in the circumferential direction, and the lower end surface of the annular ridge (15) has a plurality of snap-in grooves (151) in the circumferential direction, and the snap-in protrusions (24) are snap-into the snap-in grooves (151).