Efficient Cooling Decanter

Abstract

Efficient decanter, including a tannin balance component, a decanter body, an ice pot, an aeration nozzle, and a bracket. A cooling cavity is provided inside the decanter body. An open mouth leading to the cooling cavity is provided at the upper end of the decanter body, and a reduced opening is formed at the bottom end of the cooling cavity. A first connector is provided at the lower end of the decanter body. The first connector is provided with an aeration cavity leading to the reduced opening, and a plurality of air intake grooves are provided at intervals at the lower end of the first connector. The tannin balance component is detachably connected to the open mouth at the upper end of the decanter body. The ice pot is placed inside the cooling cavity. The aeration nozzle includes an aeration nozzle body and a second connector provided above the aeration nozzle body. The aeration nozzle is detachably connected to the lower part of the decanter body through the second connector. The bracket includes a support base and a plurality of support feet provided at intervals on the periphery of the support base. The efficient decanter of the present invention is detachable, convenient to clean, can cool down during decantation, and has low noise during decantation.

Description

Technical Field

[0001] The present invention relates to the technical field of decanters, and particularly to an efficient cooling decanter. Background Art

[0002] A decanter, also known as a decanting bottle or decanting jug, is a vessel used when drinking fermented wine. The function of the decanter is to allow the wine to come into contact with air, volatilize sulfur dioxide in the wine, and cause the wine to undergo an oxidation reaction with air, softening the tannins and making the wine taste better when consumed. In current conventional decanters, the internal pipes are integrated, making it difficult to clean the interior. To accelerate the decanting speed, two air inlets are provided on both sides of the pipes of the decanter to utilize Bernoulli's principle to allow air to pass through the air inlets and mix with the wine, promoting the oxidation of the wine. However, the decanting speed of the two-air-inlet structure is relatively slow, and there is a relatively large noise during decanting. Research data shows that the optimal drinking temperature of wine is about 13°C. To make the wine reach the optimal low temperature state when consumed, the commonly adopted method is to add a small amount of ice cubes into the decanter. Although this method can cool the wine, the melted ice cubes are mixed in the wine, having a greater impact on the quality and taste of the wine. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an efficient cooling decanter with a more reasonable structure in view of the problems existing in the prior art.

[0004] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0005] The efficient cooling decanter includes a tannin balancing member, a decanter body, an ice pot, an aeration nozzle, and a bracket. A cooling cavity is provided inside the decanter body. An open mouth leading to the cooling cavity is provided at the upper end of the decanter body, and a constriction is formed at the bottom end of the cooling cavity. A first connector is provided at the lower end of the decanter body. The first connector is provided with an aeration cavity leading to the constriction, and the aeration cavity penetrates downward through the first connector. A plurality of air inlet grooves leading from the outer wall of the first connector to the aeration cavity are provided at intervals at the lower end of the first connector, and the air inlet grooves extend obliquely downward from the outside to the inside.

[0006] The tannin balancing member includes a tannin balancing member body that is concave downward. The tannin balancing member is detachably connected to the open mouth at the upper end of the decanter body, and the tannin balancing member body extends into the cooling cavity. A plurality of ventilation holes leading to the cooling cavity are circumferentially provided at intervals at the upper end of the tannin balancing member. A wine inlet hole is provided at the bottom of the tannin balancing member body, and a filter screen is provided above the wine inlet hole of the tannin balancing member.

[0007] The curling stone is placed in the cooling cavity. The curling stone includes a curling stone body and a lid. A spout is provided above the curling stone body, and the lid is connected outside the spout. A plurality of ribs are spaced on the side wall of the curling stone body. The curling stone body is mounted in the decanter body through the ribs, and the ribs are in clearance fit with the inner wall of the decanter body. A groove is formed between any adjacent ribs. A channel is formed between the groove and the decanter body to connect the cooling cavity above the curling stone and the aeration cavity of the first connector.

[0008] The aeration nozzle includes an aeration nozzle body and a second connector provided above the aeration nozzle body. The second connector is matched with the first connector, and the aeration nozzle is detachably connected to the lower part of the decanter body through the second connector. A recess is provided in the second connector, and the first connector extends into the recess. The lower end of the first connector is matched with the recess, and an air inlet channel is formed between the air inlet groove of the first connector and the second connector. A plurality of air inlet holes leading to the outer ends of the respective air inlet channels are circumferentially spaced in the second connector, and the air inlet holes lead to the lower part of the aeration nozzle. The aeration nozzle body is provided with a mixing channel extending downward from the recess. The upper end of the mixing channel leads to the aeration cavity, and the mixing channel penetrates downward through the aeration nozzle body.

[0009] The bracket includes a support seat and a plurality of support feet spaced on the periphery of the support seat. The support seat is provided with a through connection hole. The decanter body is mounted on the support seat, and the aeration nozzle extends downward through the connection hole. The support feet are used to be limited to the outside of the cup body of the wine glass.

[0010] Preferably, the tannin balance member further includes a flange provided at the upper end of the tannin balance member body, and the flange is mounted on the upper end of the decanter body.

[0011] Preferably, a pressure relief pad is further provided between the curling stone body and the lid. A pressure relief cavity is provided in the pressure relief pad, and an opening leading to the pressure relief cavity is provided above the pressure relief pad. A connection ring is provided on the periphery of the upper end of the pressure relief pad, and the connection ring is mounted above the spout of the curling stone body. The lid is threadedly connected outside the spout of the curling stone body, and the lid is provided with a pressure relief port leading to the pressure relief cavity. A flow limiting protrusion is provided above the lid, and the pressure relief port penetrates upward through the flow limiting protrusion. A retaining cover is provided on the tannin balance member body above the flow limiting protrusion. A flow limiting cavity with a downward opening is provided in the retaining cover, and the flow limiting protrusion extends into the flow limiting cavity of the retaining cover.

[0012] Preferably, a through hole is provided in the middle of the bottom of the tannin balance member body. A filter screen support is provided in the through hole, and the filter screen support divides the through hole into a plurality of wine inlet holes. The edge of the filter screen is matched with the through hole, and the filter screen is mounted above the filter screen support.

[0013] Preferably, anti-slip grooves are circumferentially provided on the outer wall of the decanter body, and an anti-slip silica gel sleeve is sleeved on the anti-slip grooves.

[0014] Preferably, it further includes a limiting portion provided between the support base and the support feet. The limiting portion is annular, the outer diameter of the upper end of the limiting portion is larger than the outer diameter of the lower end of the limiting portion, the lower end of the limiting portion surrounds the support base and is integrally connected to the lower end of the support base, and the upper end of the support feet is integrally connected to the outside of the upper end of the limiting portion; the limiting portion is used to be inserted into the cup body of the wine glass.

[0015] Preferably, it further includes a clamping member spacedly provided on the circumferential side of the support base, and the lower end of the decanter body is limited inside the clamping member.

[0016] Preferably, the number of the air inlet grooves is four.

[0017] Preferably, a clamping block is provided on the outer side wall of the first connector, and a clamping groove matching with the clamping block is provided on the inner side wall of the concave portion of the second connector. The first connector is connected to the second connector through the clamping block.

[0018] Preferably, the clamping groove includes a horizontally arranged clamping portion and a guiding portion extending upward from one end of the clamping portion.

[0019] Preferably, the ice pot divides the cooling cavity into an upper cavity located above the ice pot and a lower cavity located below the ice pot.

[0020] Preferably, it further includes reinforcing ribs spacedly provided on the circumferential side of the aeration nozzle body, and the reinforcing ribs extend from top to bottom along the aeration nozzle body.

[0021] Compared with the prior art, the beneficial effects of the present invention:

[0022] The high-efficiency cooling decanter of the present invention is composed of components such as a tannin balance part, a decanter body, an ice pot, an aeration nozzle, and a bracket, which are detachably connected. It is detachable, convenient to clean, and more hygienic and healthy. By placing an ice pot inside the decanter body, it can cool the wine during decanting. By setting grooves on the ice pot body of the ice pot, the contact area between the wine and the ice pot body during decanting is increased, and the cooling efficiency is improved. Four air intake grooves are provided at the first connection head of the decanter body, increasing the air intake volume of the aeration chamber, accelerating the oxidation reaction of the red wine with air, accelerating the softening of tannins and the volatilization of sulfur dioxide, and having a higher decanting efficiency. The setting of the four air intake grooves can make the air intake more balanced, reduce the occurrence of turbulent flow, vortices and other phenomena in the aeration chamber, thereby reducing the noise generated during decanting. The air intake grooves of the decanter body are in a groove shape, which is convenient for cleaning. The bracket is provided with an annular limiting part and supporting feet. The limiting part can be limited inside the wine glass, and the supporting feet can be limited outside the wine glass, compatible with most wine glasses on the market, and having a wide application range. Description of the Drawings

[0023] Figure 1 It is a three-dimensional schematic diagram of the high-efficiency cooling decanter of the present invention.

[0024] Figure 2 It is an exploded view of the high-efficiency cooling decanter of the present invention Figure 1 。

[0025] Figure 3 It is an exploded view of the high-efficiency cooling decanter of the present invention Figure 2 。

[0026] Figure 4 It is a cross-sectional view of the high-efficiency cooling decanter of the present invention placed on a wine glass.

[0027] Figure 5 It is an enlarged view of part A of the high-efficiency cooling decanter of the present invention.

[0028] Reference numerals in the drawings: 1, bracket; 11, supporting feet; 12, supporting seat; 13, clamping member; 2, aeration nozzle; 21, second connection head; 211, clamping groove; 22, aeration nozzle body; 221, mixing channel; 23, air intake hole; 3, decanter body; 31, anti-slip groove; 32, first connection head; 322, clamping block; 323, air intake groove; 324, aeration chamber; 4, ice pot body; 41, spout; 42, groove; 5, pressure relief pad; 51, connecting ring; 52, pressure pad body; 53, pressure relief chamber; 6, kettle lid; 61, pressure relief port; 62, current limiting protrusion; 7, tannin balance part; 71, handle; 72, wine inlet hole; 73, ventilation hole; 74, baffle; 8, filter screen; 9, anti-slip silicone sleeve. Detailed Embodiments

[0029] The present invention will be further described in detail below with reference to the embodiments of the drawings.

[0030] As Figures 1 to 4 shown, the efficient decanter cooler includes a tannin balance member 7, a decanter body 3, an ice pot, an aeration nozzle 2, and a bracket 1. The outer wall of the decanter body 3 is circumferentially provided with anti-slip grooves 31, and an anti-slip silicone sleeve 9 is sleeved on the anti-slip grooves 31. A cooling cavity is provided inside the decanter body 3. An open mouth leading to the cooling cavity is provided at the upper end of the decanter body 3. The bottom end of the cooling cavity forms a constricted opening, and the diameter of the open mouth is larger than that of the constricted opening. A first connector 32 is provided at the lower end of the decanter body 3. The first connector 32 is provided with an aeration cavity 324 leading to the constricted opening, and the aeration cavity 324 penetrates downward through the first connector 32. Four air inlet grooves 323 leading from the outer wall of the first connector 32 to the aeration cavity 324 are provided at intervals at the lower end of the first connector 32, and the air inlet grooves 323 extend obliquely downward from the outside to the inside. A clamping block 322 is provided on the outer wall of the first connector 32.

[0031] The tannin balance member 7 is detachably connected to the open mouth at the upper end of the decanter body 3. The tannin balance member 7 includes a tannin balance member body that is concave downward, a flange provided at the upper end of the tannin balance member body, and a handle 71 provided on one side of the flange. The flange is mounted on the upper end of the decanter body 3, and the tannin balance member body extends into the cooling cavity. A plurality of ventilation holes 73 leading to the cooling cavity are circumferentially provided at intervals at the upper end of the tannin balance member 7. A wine inlet hole 72 is provided at the bottom of the tannin balance member body. A filter screen 8 is provided above the wine inlet hole 72 of the tannin balance member 7. Further, a through hole is provided in the middle of the bottom of the tannin balance member body, and a filter screen support is provided in the through hole. The filter screen support divides the through hole into a plurality of the wine inlet holes 72. The edge of the filter screen 8 is matched with the through hole, and the filter screen 8 is mounted above the filter screen support. A baffle 74 is provided in the middle of the filter screen support, and a flow-limiting cavity with a downward opening is provided in the baffle 74.

[0032] The curling stone is placed in the cooling cavity. The curling stone includes a curling stone body 4 and a lid 6. Above the curling stone body 4, there is a spout 41. The lid 6 is connected outside the spout 41. A pressure relief pad 5 is provided between the curling stone body 4 and the lid 6, and the pressure relief pad 5 is a silicone pressure relief pad. The pressure relief pad 5 includes a pressure relief pad body 52 and a connecting ring 51 provided on the peripheral side of the upper end of the pressure relief pad body 52. A pressure relief cavity 53 is provided inside the pressure relief pad body 52, and an opening leading to the pressure relief cavity 53 is provided above the pressure relief pad 5. The connecting ring 51 is erected above the spout 41 of the curling stone body 4. The lid 6 is threadedly connected outside the spout 41 of the curling stone body 4. The lid 6 is provided with a pressure relief port 61 leading to the pressure relief cavity 53. Above the lid 6, there is a current-limiting protrusion 62, and the pressure relief port 61 penetrates upward through the current-limiting protrusion 62. The current-limiting protrusion 62 extends into the current-limiting cavity of the baffle 74. The baffle 74 is used to prevent the wine from entering the pressure relief cavity 53 through the pressure relief port 61 of the lid 6 when pouring wine through the tannin balancing member 7. The pressure relief pad 5 can be compressed upward when the water freezes and the volume increases, preventing the curling stone from being broken by the ice. The pressure relief port 61 of the lid 6 can discharge gas outward when the pressure relief pad 5 is compressed, playing a role in relieving pressure on the pressure relief cavity 53. A plurality of ribs are provided at intervals on the side wall of the curling stone body 4. The curling stone body 4 is erected in the decanter body 3 through the ribs, and the ribs are in clearance fit with the inner wall of the decanter body 3. The curling stone divides the cooling cavity into an upper cavity located above the curling stone and a lower cavity located below the curling stone. A groove 42 is formed between any adjacent ribs. A channel connecting the upper cavity and the lower cavity is formed between the groove 42 and the decanter body 3.

[0033] The aeration nozzle 2 includes an aeration nozzle body 22 and a second connector 21 provided above the aeration nozzle body 22. The aeration nozzle 2 is detachably connected to the lower part of the decanter body 3 through the second connector 21. A recess is provided in the second connector 21, and a clamping groove 211 matching with the clamping block 322 is provided on the inner side wall of the second connector 21. The first connector 32 is connected to the second connector 21 through the clamping block 322. The clamping groove 211 includes a horizontally arranged clamping portion and a guiding portion extending upward from one end of the clamping portion. The first connector 32 extends into the recess, and the lower end of the first connector 32 cooperates with the recess. An air inlet channel is formed between the air inlet groove 323 of the first connector 32 and the second connector 21. A plurality of air inlet holes 23 leading to the outer ends of the respective air inlet channels are circumferentially and spacedly provided in the second connector 21, and the air inlet holes 23 lead to the lower part of the aeration nozzle 2. The aeration nozzle body 22 is provided with a mixing channel 221 extending downward from the recess. The mixing channel 221 is in the shape of a horn with a smaller upper part and a larger lower part. The upper end of the mixing channel 221 leads to the aeration chamber 324, and the lower end of the mixing channel 221 penetrates downward through the aeration nozzle body 22. Reinforcing ribs are circumferentially and spacedly provided on the periphery of the aeration nozzle body 22, and the reinforcing ribs extend from top to bottom along the aeration nozzle body 22.

[0034] The bracket 1 includes a support base 12 and a plurality of support feet 11 spaced around the support base 12. The support base 12 is provided with a through connection hole, and the decanter body 3 is mounted on the support base 12. The aeration nozzle 2 extends downward through the connection hole. Positioning members 13 are spaced around the support base 12, and the lower end of the decanter body 3 is limited inside the positioning members 13. The support feet 11 are used to be limited outside the cup body of the wine glass. A limiting portion is provided between the support base 12 and the support feet 11. The limiting portion is annular, the outer diameter of the upper end of the limiting portion is larger than the outer diameter of the lower end of the limiting portion, the lower end of the limiting portion surrounds the support base 12 and is integrally connected to the lower end of the support base 12, and the upper end of the support feet 11 is integrally connected to the outside of the upper end of the limiting portion. The limiting portion is used to be inserted into the cup body of the wine glass.

[0035] During use, after pouring water into the curling stone and freezing it, the ice expands in volume, compressing the pressure relief pad. The pressure relief pad releases pressure through the pressure relief port, preventing the curling stone from bursting. Place the curling stone inside the decanter body, and connect the filter screen, tannin balance component, decanter body, aeration nozzle, and bracket in sequence. The highly efficient cooling decanter is then connected. Place the bracket above the wine glass, and pour the wine into the tannin balance component. At this time, some of the tannins in the wine undergo an oxidation reaction with the air. The wine enters the cooling chamber through the filter screen and the wine inlet hole. Part of the air in the cooling chamber flows upward through the ventilation holes of the tannin balance component, making the air pressure inside and outside the cooling chamber balanced. The baffle can prevent the wine from entering the pressure relief chamber through the pressure relief port of the kettle lid when pouring the wine downward through the tannin balance component. The wine flows from above the kettle lid to the curling stone body and then flows downward through the grooves of the curling stone body to the lower cavity and the aeration chamber in sequence. The grooves on the curling stone body increase the contact area between the curling stone body and the wine, enabling the wine to be quickly cooled. When the wine flows into the mixing channel through the aeration chamber, the pressure at the connection part between the aeration chamber and the mixing channel decreases. External air enters the connection part between the aeration chamber and the mixing channel through the air inlet hole and the air inlet groove under normal air pressure, and the air is fully mixed with the wine, achieving the purpose of quickly decanting the wine. After decanting, the highly efficient cooling decanter can be placed on the table through the bracket, or the highly efficient cooling decanter can be disassembled for cleaning.

[0036] The highly efficient cooling decanter of the present invention is formed by detachably connecting components such as a tannin balance component, a decanter body, a curling stone, an aeration nozzle, and a bracket. It is detachable, convenient for cleaning, and more hygienic and healthy. By placing a curling stone inside the decanter body, it can cool the wine during decanting. By providing grooves on the curling stone body of the curling stone, the contact area between the wine and the curling stone body during decanting is increased, improving the cooling efficiency. Four air inlet grooves are provided at the first connection head of the decanter body, increasing the air intake volume of the aeration chamber, accelerating the oxidation reaction of the red wine with the air, accelerating the softening of tannins and the volatilization of sulfur dioxide, and having a higher decanting efficiency. The setting of the four air inlet grooves can make the air intake more balanced, reducing phenomena such as turbulent flow and vortex in the aeration chamber, thereby reducing the noise generated during decanting. The air inlet groove of the decanter body is in a groove shape, which is convenient for cleaning. The bracket is provided with an annular limiting part and supporting feet. The limiting part can be limited inside the wine glass, and the supporting feet can be limited outside the wine glass, being compatible with most wine glasses on the market and having a wide application range.

[0037] Finally, it should be noted that the above embodiments only illustrate the technical solutions of the present invention and do not limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An efficient cooling sobering device, characterized in that, Comprising a tannin balance member, a decanter body, an ice pot, an aeration nozzle, and a bracket, a cooling chamber is provided inside the decanter body, an open mouth leading to the cooling chamber is provided at the upper end of the decanter body, and a constriction is formed at the bottom end of the cooling chamber; a first connector is provided at the lower end of the decanter body, an aeration chamber leading to the constriction is provided in the first connector, and the aeration chamber penetrates downward through the first connector; a plurality of air intake grooves leading from the outer wall of the first connector to the aeration chamber are provided at intervals at the lower end of the first connector, and the air intake grooves extend obliquely downward from the outside to the inside. The tannin balance member includes a tannin balance member body that is concave downward, the tannin balance member is detachably connected to the open mouth at the upper end of the decanter body, and the tannin balance member body extends into the cooling chamber; a plurality of ventilation holes leading to the cooling chamber are provided at intervals in the circumferential direction at the upper end of the tannin balance member, a wine inlet hole is provided at the bottom of the tannin balance member body, and a filter screen is provided above the wine inlet hole of the tannin balance member. The ice pot is placed in the cooling chamber, the ice pot includes an ice pot body and a pot lid, a spout is provided above the ice pot body, and the pot lid is connected outside the spout; a plurality of ribs are provided at intervals on the side wall of the ice pot body, and the ice pot body is supported inside the decanter body through the ribs, and the ribs are in clearance fit with the inner wall of the decanter body; a groove is formed between any adjacent ribs; a channel communicating the cooling chamber above the ice pot with the aeration chamber of the first connector is formed between the groove and the decanter body. The aeration nozzle includes an aeration nozzle body and a second connector provided above the aeration nozzle body, the second connector is matched with the first connector, and the aeration nozzle is detachably connected to the lower part of the decanter body through the second connector; a recess is provided in the second connector, the first connector extends into the recess, the lower end of the first connector is matched with the recess, and an air intake channel is formed between the air intake groove of the first connector and the second connector; a plurality of air intake holes respectively leading to the outer ends of the air intake channels are provided at intervals in the circumferential direction inside the second connector, and the air intake holes lead to the lower part of the aeration nozzle; the aeration nozzle body is provided with a mixing flow channel extending downward from the recess, the upper end of the mixing flow channel leads to the aeration chamber, and the mixing flow channel penetrates downward through the aeration nozzle body. The bracket includes a support seat and a plurality of support feet provided at intervals on the periphery of the support seat, the support seat is provided with a connecting hole that penetrates up and down, the decanter body is supported on the support seat, and the aeration nozzle passes through the connecting hole and extends downward; the support feet are used to be positioned outside the cup body of the wine glass.

2. The efficient cooling sobering device according to claim 1, characterized in that The tannin balance member further includes a flange provided at the upper end of the tannin balance member body, and the flange is supported on the upper end of the decanter body.

3. The efficient cooling sobering device according to claim 1, characterized in that, It further includes a pressure relief pad disposed between the curling stone body and the lid. A pressure relief cavity is provided inside the pressure relief pad, and an opening leading to the pressure relief cavity is provided above the pressure relief pad. A connecting ring is provided on the circumferential side of the upper end of the pressure relief pad, and the connecting ring is mounted above the spout of the curling stone body. The lid is threadedly connected to the outside of the spout of the curling stone body, and the lid is provided with a pressure relief port leading to the pressure relief cavity. A current limiting protrusion is provided above the lid, and the pressure relief port penetrates upward through the current limiting protrusion. A retaining cover is provided above the current limiting protrusion on the tannin balance member body, and a current limiting cavity with an opening facing downward is provided inside the retaining cover, and the current limiting protrusion extends into the current limiting cavity of the retaining cover.

4. The efficient cooling sobering device according to claim 1, characterized in that, A through hole is provided in the middle of the bottom of the tannin balance member body, and a filter screen support is provided in the through hole. The filter screen support divides the through hole into a plurality of wine inlet holes. The edge of the filter screen is matched with the through hole, and the filter screen is mounted above the filter screen support.

5. The efficient cooling sobering device according to claim 1, characterized in that, Anti-slip grooves are circumferentially provided on the outer wall of the decanter body, and anti-slip silica gel sleeves are sleeved on the anti-slip grooves.

6. The efficient cooling sobering device according to claim 1, characterized in that It further includes a limiting portion disposed between the support base and the support feet. The limiting portion is annular, the outer diameter of the upper end of the limiting portion is larger than the outer diameter of the lower end of the limiting portion. The lower end of the limiting portion is integrally connected to the lower end of the support base around the support base, and the upper end of the support feet is integrally connected to the outside of the upper end of the limiting portion. The limiting portion is used to be inserted into the cup body of the wine glass.

7. The efficient cooling sobering device according to claim 1, characterized in that It further includes positioning members spaced apart on the circumferential side of the support base, and the lower end of the decanter body is limited inside the positioning members.

8. The efficient cooling sobering device according to claim 1, characterized in that The number of the air inlet grooves is four.

9. The efficient cooling sobering device according to claim 1, wherein, A clamping block is provided on the outer side wall of the first connector, and a clamping groove matched with the clamping block is provided on the inner side wall of the concave portion of the second connector. The first connector is connected to the second connector through the clamping block.

10. The high-efficiency cooling sobering device according to claim 1, characterized in that, The curling stone divides the cooling cavity into an upper cavity located above the curling stone and a lower cavity located below the curling stone.

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