Barrel structure

Abstract

The invention provides a wooden barrel structure that includes a lower-end plate and side panels distributed circumferentially around the lower-end plate. The side panels are made up of several spliced boards. The side panels include at least one side panel group formed by multiple sideboards. The cross-section of this side panel group is an isosceles trapezoid, with both non-parallel sides pointing toward the central axis of the barrel. Viewed from the crosssectional direction, the contact surfaces between boards within the same group are perpendicular to the top or bottom base of the isosceles trapezoid. The side panel group includes two primary sideboards, whose cross-sections are either right-angled triangles or right trapezoids, positioned on both sides of the panel group. By adopting this side panel group structure, the number of barrel sideboards can be increased, reducing the requirements for the width of quarter sawn or rift sawn boards, thereby decreasing the diameter requirements of logs, improving log utilization, and reducing production costs..

Description

Technical field

[0001] This application belongs to the field of barrel production technology, particularly involving a wooden barrel structure.Prior art

[0002] In traditional cooperage, the quarter sawn or rift sawn methods are generally used to make the side and end plates of barrels from logs. The barrels made using these methods have good water tightness. However, this process requires sufficiently large logs with high diameters, leads to reduced wood utilization, and has a high production costs.

[0003] During the initial barrel-hooping phase, the panels are not fully matched, and the contact surfaces between adjacent panels are inclined, which can easily lead to misalignment. The common solution is to increase the width of the panels while reducing the number of panels. However, increasing the panel width adds further difficulties to sourcing such quarter sawn or rift sawn boards, decreases wood utilization, and adds to production costs.Object of the invention

[0004] The primary objective of this application is to provide a wooden barrel structure with more efficient log utilization.

[0005] To achieve the above goal, this application provides a wooden barrel structure that includes a lower end plate and side panels distributed around it. The side panels are spliced together, forming at least one side panel group composed of multiple boards with an isosceles trapezoidal cross-section.

[0006] The straight lines of the non-parallel sides of the trapezoid point toward the central axis of the barrel, and within the same group, contact surfaces are perpendicular to either the top or bottom base of the trapezoid. The side panel group contains two primary boards whose cross-sections are either right-angled triangles or trapezoids.

[0007] This wooden structure at least has the following benefits: The provided structure significantly reduces misalignment issues seen in prior art. The panels in this application include at least one group where the contact surfaces between each board are perpendicular to the top or bottom base of the isosceles trapezoid, which means they can fit tightly even during the initial hooping phase, reducing potential misalignment and easing operations. The design also permits increased numbers of sideboards, reducing the required width for quarter sawn or rift sawn boards and, therefore, decreasing the need for large logs, thus raising utilization of logs and reducing production costs.Description of the drawings

[0008] The following drawings provide a simple introduction to the technical solution described. It should be understood that these drawings illustrate specific examples and are not meant to limit the scope of this application. Other variations can be easily made based on these drawings by an average person skilled in the art. Figure 1: Shows a structural schematic of the side panel group of the barrel. Figure 2: Shows the position of one of the side panels within the group. Figure 3: Shows different combinations of the side panel group in cross-section view. Figure 4: Shows the manufacturing of a primary board using the first method (view of plain-sawn cross-section). Figure 5: Shows the manufacturing using the second method, processing a plain-sawn board at a 45° angle, including all four sides (view of plain-sawn cross-section). The plain-sawn board has a rectangular cross-section, including sides a, b, and c, where the lengths of sides a and b are equal, and the angle between sides a and b is 45 degrees. The side where side c is located is the quarter sawn surface. Reference numerals

[0009] 100:side panel group 10:primary board 11:first side 12:second side 13:third side 14:fourth side 200:cutting tool 300:C-groove Detailed description of the invention

[0010] The following describes the implementation of this application through specific examples. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application may also be implemented or applied through different ways, and various details of this application can be modified or changed from different perspectives and applications without departing from the spirit of this application. It should be noted that, where there is no conflict, the following examples and the features therein may be combined with each other.

[0011] In the description of this application, it should be noted that terms such as "center", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "upper", "lower", "inner", and "outer", indicate directional or positional relationships based on the orientations or positions shown in the accompanying figures. These terms are solely for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must be configured or operated in a specific orientation. Therefore, they should not be construed as limiting the scope of this application. Moreover, the terms "first" and "second" are used solely for descriptive purposes and should not be interpreted as indicating or implying relative importance.

[0012] Referring to Figures 1 and 2, this example provides a wooden barrel structure, which includes a lower end plate and side panels distributed circumferentially around the lower end plate. The side panels are made up of several spliced boards, where the side panels include at least one side panel group 100 formed by multiple boards. The cross-section of the side panel group 100 is an isosceles trapezoid, with both non-parallel sides pointing towards the central axis of the wooden barrel. Viewed from the cross-sectional direction of the side panel group, the contact surfaces between the boards within the same side panel group 100 are perpendicular to the top or bottom base of the isosceles trapezoid. The side panel group 100 includes two primary side panels 10, whose cross-section is at least one of a right-angled triangle or a right trapezoid. The two primary side panels 10 are positioned on both sides of the side panel group 100. The wooden barrel structure is generally made of oak.

[0013] Compared to prior art, where the side panels of wooden barrels tend to misalign easily, the wooden barrel structure in this application includes at least one side panel group. Viewed from the cross-sectional direction of the side panel group, the contact surfaces between the side panels within the group are perpendicular to the top or bottom base of the isosceles trapezoid, allowing the panels to fit tightly together during the initial hooping stage, reducing the likelihood of misalignment or shifting, and making the hooping process easier. By adopting this side panel group structure, the number of side panels in the wooden barrel can be increased, thereby reducing the width requirements for quarter sawn or rift sawn boards, which in turn reduces the diameter requirements of the log, improves wood utilization, and lowers production costs.

[0014] Compared to barrels of prior art, the wooden barrel structure provided in this application can increase the number of side panels as well as the gaps between panels. The increase in gaps allows for more air to be absorbed, thereby increasing the dissolved oxygen inside the barrel. When this type of barrel structure is used for aging spirits, the high oxygen environment within the barrel enables the liquor to mature more quickly.

[0015] Referring to Figure 2, the side panel has a first side 11, third side 13, second side 12, and fourth side 14, connected in sequence, with the first side 11 connected to the fourth side 14. The first side 11 faces the interior of the barrel, the second side 12 faces the exterior of the barrel, the third side 13 is in contact with the third side 13 of an adjacent side panel, and the fourth side 14 is in contact with the fourth side 14 of an adjacent side panel.

[0016] Based on the principle that the probability of liquid penetrating the wood is proportional to the contact area and the permeability coefficient of the wood itself, and that the probability of liquid seeping out of the wood is proportional to the surface area through which it exits and the wood's permeability coefficient, the probability of liquid penetrating from the first side 11 is: L = S 1 ⋅ k

[0017] S1 is the area of the first side and k is the permeability coefficient of the wood. The probability of liquid seeping out from the second side 12 is: F = L ⋅ S 2 S 2 + S 3 + S 4 ⋅ k where S2, S3, and S4 are the areas of the second, third, and fourth sides, respectively.

[0018] From the above two formulas, we get: F = S 1 ⋅ S 2 S 2 + S 3 + S 4

[0019] It can be seen that if the areas of the third S3 and the fourth side S4 remain unchanged, reducing the areas of the first side S1 and the second side S2 can effectively reduce the probability of leakage from the barrel. Therefore, while increasing the number of side panels, the width of the side panels is reduced compared to in prior art, and areas of the first side S1 and the second side S2 are also reduced, thus decreasing the probability of leakage. Additionally, since the width of the side panels can be smaller, the requirement for the raw material used for the side panels is reduced, thereby saving material costs.

[0020] In some examples, referring to Figure 3(a), the side panel group 100 includes two primary side panels 10, each with a right trapezoidal cross-section. The cross-sections of the two primary side panels 10 can be spliced together to form an isosceles trapezoid pattern. Referring to Figure 2, the side panel has a right trapezoidal shape, and the third side 13 is perpendicular to both the first side 11 and the second side 12.

[0021] In other examples, referring to Figure 3(b), the side panel group 100 includes two primary side panels 10, one of which has a right-angled triangular cross-section while the other has a right trapezoidal cross-section. The cross-sections of the two primary side panels 10 can be spliced together to form an isosceles trapezoid pattern.

[0022] In other examples, referring to Figure 3(c), the side panel group 100 includes two primary side panels 10 and a rectangular side panel located between them. The primary side panels 10 have a right-angled triangular cross-section, and together with the rectangular side panel, their cross-sections can be spliced to form an isosceles trapezoid pattern.

[0023] Furthermore, the side panel group 100 may also include at least one secondary side panel (not shown in the figure). The secondary side panel has a rectangular cross-section and is located between the two primary side panels 10. The cross-sections of all panels within the side panel group 100 can be spliced together to form an isosceles trapezoid pattern. Additionally, there may be multiple secondary side panels.

[0024] In some examples, the primary side panel 10 is rift sawn.

[0025] In other embodiments, the primary side panel 10 is plain-sawn, with the surfaces facing both the interior and the exterior of the barrel having grain patterns similar to those of a rift sawn.

[0026] Referring to Figure 2, the first side 11 and the second side 12 have grain patterns similar to those of the rift sawn surface. It should be noted that "similar" or "the same" here does not mean that the patterns (e.g., grain thickness or direction) are completely identical or alike, but rather that the primary side panel 10 also has grain patterns resembling the medullary rays parallel to the inner side of the barrel, similar to those found in rift sawn boards. The scope for selection can be determined by those skilled in the art based on an understanding of the technical concept of this application.

[0027] Using a plain sawn board as the primary side panel 10 can reduce the raw material costs compared to using a rift sawn board for the barrel side panels as in the prior art. Since the rift sawn surface passes through the heartwood, the grain is straight, the wood has good water tightness, and the shrinkage is minimal. The surfaces of the primary side panel 10 that face the interior and exterior of the barrel have grain patterns that are similar to those of the rift sawn surface. This not only reduces the cost of raw materials but also minimizes the shrinkage and permeability of the board.

[0028] Depending on whether the two opposite sides of the plain-sawn board have grain patterns that are identical or similar to those of the rift sawn surface, different methods can be used to obtain the primary side panel 10 with an isosceles right trapezoidal cross-section. Specific examples of the processing methods are as follows: First Method: Referring to Figure 4, when the two opposite sides of the plain-sawn board have grain patterns that are identical or similar to those of the rift-sawn surface, the desired primary side panel 10 can be obtained by processing the side of the plain-sawn board, or the side of the primary side 10 corresponding to the third side 13 using a cutting tool 200 in the C-groove 300. Second Method: Referring to Figure 5, when neither of the opposite sides of the plain-sawn board has grain patterns similar to those of the rift-sawn surface, the four sides of the plain-sawn board are processed at a 45° angle, resulting in a new plain-sawn board. Once the new plain-sawn board has two opposite sides with grain patterns identical or similar to those of the rift-sawn surface, the first method can then be used to continue processing.

[0029] In the second method, the thickness of the primary side panel 10 (i.e., the length of side b in Figure 5) is equal to the thickness of the primary side panel 10 obtained by the first method (i.e., the length of side a in Figure 5). This ensures that the height of the isosceles trapezoid formed by splicing the cross-sections of each pair of primary side panels created by the first method is equal to the height of the isosceles trapezoid formed by the second method. Consequently, the thickness of any pair of primary side panels 10 formed by the first method can be connected to that formed by the second method, ensuring that the thicknesses of the primary side panels 10 created by both methods are equal. This allows the contact surfaces between primary side panels 10 created by the first method and those created by the second method to align within the wooden barrel structure.

[0030] Those skilled in the art can understand that the same or similar processing methods can be used for primary side panels with a right-angled triangular cross-section.

[0031] To use a rift sawn board with an isosceles trapezoidal cross-section, two sets of cutting tools 200 are required to simultaneously process the two opposite sides of a plain-sawn board with a rectangular cross-section. However, for the primary side panel 10 with either a right trapezoidal or right-angled triangular cross-section as described in this application, only one set of cutting tool 200 is needed to process the side corresponding to the third side 13 of the primary side panel 10 on a plain-sawn board with a rectangular cross-section. This reduces the manufacturing cost and technical requirements of the equipment.

[0032] The above descriptions are only the preferred examples of this application. It should be noted that, for those skilled in the field, several modifications and substitutions can be made without departing from the fundamental principles of this application. Such modifications and substitutions should also be considered within the scope of this application.

Examples

Embodiment Construction

[0010]The following describes the implementation of this application through specific examples. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application may also be implemented or applied through different ways, and various details of this application can be modified or changed from different perspectives and applications without departing from the spirit of this application. It should be noted that, where there is no conflict, the following examples and the features therein may be combined with each other.

[0011]In the description of this application, it should be noted that terms such as "center", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "upper", "lower", "inner", and "outer", indicate directional or positional relationships based on the orientations or positions shown in the accompanying figures. These terms are solely for the convenience of...

Technical field

[0001] This application belongs to the field of barrel production technology, particularly involving a wooden barrel structure.Prior art

[0002] In traditional cooperage, the quarter sawn or rift sawn methods are generally used to make the side and end plates of barrels from logs. The barrels made using these methods have good water tightness. However, this process requires sufficiently large logs with high diameters, leads to reduced wood utilization, and has a high production costs.

[0003] During the initial barrel-hooping phase, the panels are not fully matched, and the contact surfaces between adjacent panels are inclined, which can easily lead to misalignment. The common solution is to increase the width of the panels while reducing the number of panels. However, increasing the panel width adds further difficulties to sourcing such quarter sawn or rift sawn boards, decreases wood utilization, and adds to production costs.Object of the invention

[0004] The primary objective of this application is to provide a wooden barrel structure with more efficient log utilization.

[0005] To achieve the above goal, this application provides a wooden barrel structure that includes a lower end plate and side panels distributed around it. The side panels are spliced together, forming at least one side panel group composed of multiple boards with an isosceles trapezoidal cross-section.

[0006] The straight lines of the non-parallel sides of the trapezoid point toward the central axis of the barrel, and within the same group, contact surfaces are perpendicular to either the top or bottom base of the trapezoid. The side panel group contains two primary boards whose cross-sections are either right-angled triangles or trapezoids.

[0007] This wooden structure at least has the following benefits: The provided structure significantly reduces misalignment issues seen in prior art. The panels in this application include at least one group where the contact surfaces between each board are perpendicular to the top or bottom base of the isosceles trapezoid, which means they can fit tightly even during the initial hooping phase, reducing potential misalignment and easing operations. The design also permits increased numbers of sideboards, reducing the required width for quarter sawn or rift sawn boards and, therefore, decreasing the need for large logs, thus raising utilization of logs and reducing production costs.Description of the drawings

[0008] The following drawings provide a simple introduction to the technical solution described. It should be understood that these drawings illustrate specific examples and are not meant to limit the scope of this application. Other variations can be easily made based on these drawings by an average person skilled in the art. Figure 1: Shows a structural schematic of the side panel group of the barrel. Figure 2: Shows the position of one of the side panels within the group. Figure 3: Shows different combinations of the side panel group in cross-section view. Figure 4: Shows the manufacturing of a primary board using the first method (view of plain-sawn cross-section). Figure 5: Shows the manufacturing using the second method, processing a plain-sawn board at a 45° angle, including all four sides (view of plain-sawn cross-section). The plain-sawn board has a rectangular cross-section, including sides a, b, and c, where the lengths of sides a and b are equal, and the angle between sides a and b is 45 degrees. The side where side c is located is the quarter sawn surface. Reference numerals

[0009] 100:side panel group 10:primary board 11:first side 12:second side 13:third side 14:fourth side 200:cutting tool 300:C-groove Detailed description of the invention

[0010] The following describes the implementation of this application through specific examples. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application may also be implemented or applied through different ways, and various details of this application can be modified or changed from different perspectives and applications without departing from the spirit of this application. It should be noted that, where there is no conflict, the following examples and the features therein may be combined with each other.

[0011] In the description of this application, it should be noted that terms such as "center", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "upper", "lower", "inner", and "outer", indicate directional or positional relationships based on the orientations or positions shown in the accompanying figures. These terms are solely for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must be configured or operated in a specific orientation. Therefore, they should not be construed as limiting the scope of this application. Moreover, the terms "first" and "second" are used solely for descriptive purposes and should not be interpreted as indicating or implying relative importance.

[0012] Referring to Figures 1 and 2, this example provides a wooden barrel structure, which includes a lower end plate and side panels distributed circumferentially around the lower end plate. The side panels are made up of several spliced boards, where the side panels include at least one side panel group 100 formed by multiple boards. The cross-section of the side panel group 100 is an isosceles trapezoid, with both non-parallel sides pointing towards the central axis of the wooden barrel. Viewed from the cross-sectional direction of the side panel group, the contact surfaces between the boards within the same side panel group 100 are perpendicular to the top or bottom base of the isosceles trapezoid. The side panel group 100 includes two primary side panels 10, whose cross-section is at least one of a right-angled triangle or a right trapezoid. The two primary side panels 10 are positioned on both sides of the side panel group 100. The wooden barrel structure is generally made of oak.

[0013] Compared to prior art, where the side panels of wooden barrels tend to misalign easily, the wooden barrel structure in this application includes at least one side panel group. Viewed from the cross-sectional direction of the side panel group, the contact surfaces between the side panels within the group are perpendicular to the top or bottom base of the isosceles trapezoid, allowing the panels to fit tightly together during the initial hooping stage, reducing the likelihood of misalignment or shifting, and making the hooping process easier. By adopting this side panel group structure, the number of side panels in the wooden barrel can be increased, thereby reducing the width requirements for quarter sawn or rift sawn boards, which in turn reduces the diameter requirements of the log, improves wood utilization, and lowers production costs.

[0014] Compared to barrels of prior art, the wooden barrel structure provided in this application can increase the number of side panels as well as the gaps between panels. The increase in gaps allows for more air to be absorbed, thereby increasing the dissolved oxygen inside the barrel. When this type of barrel structure is used for aging spirits, the high oxygen environment within the barrel enables the liquor to mature more quickly.

[0015] Referring to Figure 2, the side panel has a first side 11, third side 13, second side 12, and fourth side 14, connected in sequence, with the first side 11 connected to the fourth side 14. The first side 11 faces the interior of the barrel, the second side 12 faces the exterior of the barrel, the third side 13 is in contact with the third side 13 of an adjacent side panel, and the fourth side 14 is in contact with the fourth side 14 of an adjacent side panel.

[0016] Based on the principle that the probability of liquid penetrating the wood is proportional to the contact area and the permeability coefficient of the wood itself, and that the probability of liquid seeping out of the wood is proportional to the surface area through which it exits and the wood's permeability coefficient, the probability of liquid penetrating from the first side 11 is: L = S 1 ⋅ k

[0017] S1 is the area of the first side and k is the permeability coefficient of the wood. The probability of liquid seeping out from the second side 12 is: F = L ⋅ S 2 S 2 + S 3 + S 4 ⋅ k where S2, S3, and S4 are the areas of the second, third, and fourth sides, respectively.

[0018] From the above two formulas, we get: F = S 1 ⋅ S 2 S 2 + S 3 + S 4

[0019] It can be seen that if the areas of the third S3 and the fourth side S4 remain unchanged, reducing the areas of the first side S1 and the second side S2 can effectively reduce the probability of leakage from the barrel. Therefore, while increasing the number of side panels, the width of the side panels is reduced compared to in prior art, and areas of the first side S1 and the second side S2 are also reduced, thus decreasing the probability of leakage. Additionally, since the width of the side panels can be smaller, the requirement for the raw material used for the side panels is reduced, thereby saving material costs.

[0020] In some examples, referring to Figure 3(a), the side panel group 100 includes two primary side panels 10, each with a right trapezoidal cross-section. The cross-sections of the two primary side panels 10 can be spliced together to form an isosceles trapezoid pattern. Referring to Figure 2, the side panel has a right trapezoidal shape, and the third side 13 is perpendicular to both the first side 11 and the second side 12.

[0021] In other examples, referring to Figure 3(b), the side panel group 100 includes two primary side panels 10, one of which has a right-angled triangular cross-section while the other has a right trapezoidal cross-section. The cross-sections of the two primary side panels 10 can be spliced together to form an isosceles trapezoid pattern.

[0022] In other examples, referring to Figure 3(c), the side panel group 100 includes two primary side panels 10 and a rectangular side panel located between them. The primary side panels 10 have a right-angled triangular cross-section, and together with the rectangular side panel, their cross-sections can be spliced to form an isosceles trapezoid pattern.

[0023] Furthermore, the side panel group 100 may also include at least one secondary side panel (not shown in the figure). The secondary side panel has a rectangular cross-section and is located between the two primary side panels 10. The cross-sections of all panels within the side panel group 100 can be spliced together to form an isosceles trapezoid pattern. Additionally, there may be multiple secondary side panels.

[0024] In some examples, the primary side panel 10 is rift sawn.

[0025] In other embodiments, the primary side panel 10 is plain-sawn, with the surfaces facing both the interior and the exterior of the barrel having grain patterns similar to those of a rift sawn.

[0026] Referring to Figure 2, the first side 11 and the second side 12 have grain patterns similar to those of the rift sawn surface. It should be noted that "similar" or "the same" here does not mean that the patterns (e.g., grain thickness or direction) are completely identical or alike, but rather that the primary side panel 10 also has grain patterns resembling the medullary rays parallel to the inner side of the barrel, similar to those found in rift sawn boards. The scope for selection can be determined by those skilled in the art based on an understanding of the technical concept of this application.

[0027] Using a plain sawn board as the primary side panel 10 can reduce the raw material costs compared to using a rift sawn board for the barrel side panels as in the prior art. Since the rift sawn surface passes through the heartwood, the grain is straight, the wood has good water tightness, and the shrinkage is minimal. The surfaces of the primary side panel 10 that face the interior and exterior of the barrel have grain patterns that are similar to those of the rift sawn surface. This not only reduces the cost of raw materials but also minimizes the shrinkage and permeability of the board.

[0028] Depending on whether the two opposite sides of the plain-sawn board have grain patterns that are identical or similar to those of the rift sawn surface, different methods can be used to obtain the primary side panel 10 with an isosceles right trapezoidal cross-section. Specific examples of the processing methods are as follows: First Method: Referring to Figure 4, when the two opposite sides of the plain-sawn board have grain patterns that are identical or similar to those of the rift-sawn surface, the desired primary side panel 10 can be obtained by processing the side of the plain-sawn board, or the side of the primary side 10 corresponding to the third side 13 using a cutting tool 200 in the C-groove 300. Second Method: Referring to Figure 5, when neither of the opposite sides of the plain-sawn board has grain patterns similar to those of the rift-sawn surface, the four sides of the plain-sawn board are processed at a 45° angle, resulting in a new plain-sawn board. Once the new plain-sawn board has two opposite sides with grain patterns identical or similar to those of the rift-sawn surface, the first method can then be used to continue processing.

[0029] In the second method, the thickness of the primary side panel 10 (i.e., the length of side b in Figure 5) is equal to the thickness of the primary side panel 10 obtained by the first method (i.e., the length of side a in Figure 5). This ensures that the height of the isosceles trapezoid formed by splicing the cross-sections of each pair of primary side panels created by the first method is equal to the height of the isosceles trapezoid formed by the second method. Consequently, the thickness of any pair of primary side panels 10 formed by the first method can be connected to that formed by the second method, ensuring that the thicknesses of the primary side panels 10 created by both methods are equal. This allows the contact surfaces between primary side panels 10 created by the first method and those created by the second method to align within the wooden barrel structure.

[0030] Those skilled in the art can understand that the same or similar processing methods can be used for primary side panels with a right-angled triangular cross-section.

[0031] To use a rift sawn board with an isosceles trapezoidal cross-section, two sets of cutting tools 200 are required to simultaneously process the two opposite sides of a plain-sawn board with a rectangular cross-section. However, for the primary side panel 10 with either a right trapezoidal or right-angled triangular cross-section as described in this application, only one set of cutting tool 200 is needed to process the side corresponding to the third side 13 of the primary side panel 10 on a plain-sawn board with a rectangular cross-section. This reduces the manufacturing cost and technical requirements of the equipment.

[0032] The above descriptions are only the preferred examples of this application. It should be noted that, for those skilled in the field, several modifications and substitutions can be made without departing from the fundamental principles of this application. Such modifications and substitutions should also be considered within the scope of this application.

Examples

Embodiment Construction

[0010]The following describes the implementation of this application through specific examples. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application may also be implemented or applied through different ways, and various details of this application can be modified or changed from different perspectives and applications without departing from the spirit of this application. It should be noted that, where there is no conflict, the following examples and the features therein may be combined with each other.

[0011]In the description of this application, it should be noted that terms such as "center", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "upper", "lower", "inner", and "outer", indicate directional or positional relationships based on the orientations or positions shown in the accompanying figures. These terms are solely for the convenience of...

Claims

1. A wooden barrel structure, <b>characterized by including lower-end plates and side panels distributed circumferentially around said lower-end plates; the side panels are made up of several spliced boards; the side panels include at least one side panel group formed by multiple sideboards; the cross-section of the side panel group is an isosceles trapezoid, with both non-parallel sides pointing toward the barrel's central axis; viewed from the cross-sectional direction of the side panel group, the contact surfaces between boards within the same group are perpendicular to the top or bottom base of the isosceles trapezoid; the side panel group includes two primary boards, whose cross-sections are either right-angled triangles or right trapezoids, positioned on both sides of the panel group.

2. The wooden barrel structure according to claim 1, characterized by the side panel group consisting of two primary boards, whose cross-sections are right trapezoids, and these boards can be spliced together to form the isosceles trapezoid pattern.

3. The wooden barrel structure according to claim 1, characterized by the side panel group consisting of two primary boards, one of which has a right-angled triangular cross-section, while the other is a right trapezoid; these boards can be spliced together to form the isosceles trapezoid pattern.

4. The wooden barrel structure according to claim 1, characterized by the side panel group consisting of two primary boards and an additional board with a rectangular cross-section positioned between them; the primary boards have a right-angled triangular cross-section, and together with the rectangular board, they form an isosceles trapezoid cross-section pattern.

5. The wooden barrel structure according to claims 2 to 4, characterized by the side panel group also including at least one secondary board, whose cross-section is rectangular and is positioned between the two primary boards; the cross-section of all boards within the group can be spliced to form an isosceles trapezoid pattern.

6. The wooden barrel structure according to claim 5, characterized by< / b> having multiple secondary boards.

7. The wooden barrel structure according to claim 1, characterized by the primary boards being quarter sawn or rift sawn boards.

8. The wooden barrel structure according to claim 1, characterized by the primary boards being plain-sawn, with surfaces facing the interior and exterior of the barrel having a grain pattern identical or similar to that of rift sawn boards.

9. The wooden barrel structure according to claim 1, <b>characterized by further including an upper end plate, which is positioned at the opposite end of the side panels relative to the lower end plate; the upper end plate, lower end plate, and side panels together form a closed barrel shape.

10. The wooden barrel structure according to claim 1, characterized by having the side and / or end plates made of oak.

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