Mortise and tenon joint structure of round pipe

Abstract

The utility model provides a mortise and tenon joint structure of a round tube, which comprises a mortise and tenon joint I and a mortise and tenon joint II, the mortise and tenon joint I and the mortise and tenon joint II are two sections of round tubes separated by cutting off the round tube with a cutter, and the mortise and tenon joint I and the mortise and tenon joint II can be separated from each other and can also be butted to form the round tube.

Description

[0001] This application is a divisional application of the Chinese application with application number 202420382689.8, application date February 29, 2024, and invention name “A mosaic structure and mortise and tenon structure of a circular tube”. Technical Field

[0002] The utility model relates to the technical field of mortise and tenon joints, in particular to a mortise and tenon joint structure of a round tube. Background Art

[0003] At present, when making mortise and tenon joint components for round tube mortise and tenon structures, mortises need to be milled out, which causes waste, is labor-intensive and time-consuming, and is difficult to make. Most existing mortise and tenon structures are square in shape, mostly single mortise and tenon, and have few shapes and varieties.

[0004] Based on this, the utility model proposes a mortise and tenon structure of a circular tube. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a mortise and tenon structure of a round tube.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A mortise and tenon structure of a circular tube comprises a first mortise and tenon and a second mortise and tenon. The first mortise and tenon are two sections of the circular tube separated by cutting the circular tube with a tool. The first mortise and tenon can be separated from each other or connected to form the circular tube.

[0008] Furthermore, the first mortise and tenon joint and the second mortise and tenon joint are formed by cutting the circular tube using a tool that always points to the axis of the circular tube.

[0009] Furthermore, the mortise and tenon one and the mortise and tenon two are both provided with a tenon and a mortise, the tenon is provided with two cutting surfaces, two convex arc surfaces and two concave arc surfaces, the convex arc surface two of the tenon is larger than the concave arc surface two, the tenon and the mortise of the mortise and tenon one and the mortise and the tenon of the mortise and tenon two correspond to each other, and the space left after the tenon is separated from the round tube is the mortise to which it corresponds.

[0010] Furthermore, the mortise and tenon 1 and the mortise and tenon 2 obtained by cutting and separating the round tube are single-tenon and single-mortise, or multiple-tenon and multiple-mortise.

[0011] Furthermore, when the mortise and tenon 1 and the mortise and tenon 2 are butt-jointed to form a circular tube, the length of the circular tube will be shortened to fill the cutting gap, so that the mortise and tenon 1 and the mortise and tenon 2 are tightly joined.

[0012] Beneficial effects of the utility model:

[0013] The mortise and tenon structure of a circular tube of the utility model is characterized in that the mortise and tenon components, mortise and tenon 1 and mortise and tenon 2, are manufactured by cutting the circular tube with a tool that always points to the axis of the circular tube. The mortise and tenon 1 and mortise and tenon 2 are manufactured simultaneously, which can save labor and materials. The tenons and mortise holes of the mortise and tenon 1 and mortise and tenon 2 have various shapes, which can be irregular top shapes, step shapes, spiral shapes, or stacked shapes. The mortise and tenon 1 and mortise and tenon 2 can have a single tenon and a single mortise hole, or multiple tenons and multiple mortise holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Three views of the mortise and tenon structure of the present invention;

[0015] Figure 2 for Figure 2 Sectional views at positions A, B, C, D, and E in the main view (V);

[0016] Figure 3 This is a three-view drawing of the second mortise and tenon structure embodiment of the utility model;

[0017] Figure 4 for Figure 3 Sectional views at positions E, D, C, B, and A in the main view (V);

[0018] Figure 5 This is a schematic diagram of cutting, separating and docking the mortise and tenon structure of an embodiment of the utility model;

[0019] Figure 6 Schematic diagram of the production of mortise and tenon components of existing mortise and tenon structures;

[0020] Figure 7 This is a schematic diagram of the manufacturing of the mortise and tenon components of the mortise and tenon structure embodiment of the utility model;

[0021] Figure 8 This is a schematic diagram of various tenon shapes in an embodiment of the mortise and tenon structure of the present utility model;

[0022] Figure 9 This is a schematic diagram of the positional relationship between the tool and the round tube in the device of an embodiment of the utility model;

[0023] Figure 10 This is a three-view drawing of a mortise and tenon structure with two tenons and two mortise holes according to an embodiment of the utility model.

[0024] Figure 11 for Figure 10 Sectional views at positions A, B, C, D, and E in the main view (V);

[0025] Figure 12 This is a three-view drawing of a mortise and tenon with two tenons and two mortise holes according to an embodiment of the present invention.

[0026] Figure 13 for Figure 12 Sectional views at positions E, D, C, B, and A in the main view (V);

[0027] Figure 14 This is a schematic diagram of manufacturing a two-tenon and two-mortise component according to an embodiment of the present utility model;

[0028] Figure 15 Cutting path diagram and rendering of the four-layer stacked mortise and tenon structure of a wooden round tube with four tenons, four mortises and four holes.

[0029] Description of reference numerals:

[0030] 1- round tube; 7- mortise and tenon 1; 8- mortise and tenon 2; 9- tenon; 10- mortise; 11- cutting surface 2; 12- convex arc surface 2; 13- concave arc surface 2;

[0031] T-tool; C-tool cutting direction; X-tool motion coordinate axis; S-tool motion direction; R-tube rotation direction; UV-tube axis, i.e., tube rotation axis;

[0032] (V)-Main view; (H)-Top view; (W)-Left view. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figure 1-Figure 5 As shown, a mortise and tenon structure of a circular tube in an embodiment of the present invention includes a mortise and tenon 1 7 and a mortise and tenon 2 8. The mortise and tenon 1 7 and the mortise and tenon 2 8 are two sections of circular tube separated by cutting the circular tube 1 with a tool T. The mortise and tenon 1 7 and the mortise and tenon 2 8 can be separated from each other or connected to form the circular tube.

[0035] The first mortise and tenon joint 7 and the second mortise and tenon joint 8 are formed by cutting the circular tube 1 using a tool T that is always directed toward the axis of the circular tube 1 .

[0036] The mortise and tenon 1 7 and the mortise and tenon 2 8 are both provided with a tenon 9 and a mortise 10. The tenon 9 is provided with a cutting surface 2 11, a convex arc surface 2 12 and a concave arc surface 2 13. The convex arc surface 2 12 of the tenon 9 is larger than the concave arc surface 2 13. The tenon 9 and the mortise 10 of the mortise and tenon 1 7 and the mortise 10 and the tenon 9 of the mortise and tenon 2 8 correspond to each other. The space left after the tenon 9 is separated from the round tube 1 is the mortise 10 corresponding thereto.

[0037] The mortise and tenon 7 and the mortise and tenon 8 obtained by cutting and separating the circular tube 1 can be single tenon 9 and single mortise 10, or multiple tenons 9 and multiple mortise 10. The shape of the tenon 9 is various ( Figure 8 shown).

[0038] When the mortise and tenon 1 7 and the mortise and tenon 2 8 are butt-jointed to form a circular tube 1 , the length of the circular tube will be shortened to fill the cutting gap so that the mortise and tenon 1 7 and the mortise and tenon 2 8 are tightly joined.

[0039] in, Figure 1 This is a three-view drawing of the mortise and tenon 7, showing the structure of the mortise and tenon 7. Figure 2 yes Figure 1 The cross-sectional views at positions A, B, C, D, and E in the middle main view (V) show the changing relationship between the tenon 9 and the mortise 10. Figure 3 This is the three-view drawing of the mortise and tenon 28, showing the structure of the mortise and tenon 28. Figure 4 yes Figure 3 The cross-sectional views at positions E, D, C, B, and A in the middle main view (V) show the changing relationship between the tenon 9 and the mortise 10. Figure 5 As shown, the circular tube 1 is cut with a tool T pointing to the axis of the circular tube 1 to produce a mortise and tenon 7 and a second mortise and tenon 8. The mortise and tenon 7 and the second mortise and tenon 8 can be separated from each other, and the mortise and tenon 7 and the second mortise and tenon 8 can be connected to form a circular tube (the production process of the mortise and tenon components shown in AB CDE); the tenon 9 and the mortise 10 of the mortise and tenon 7 correspond to the mortise 10 and the tenon 9 of the second mortise and tenon 8, and the space left after the tenon 9 is separated from the circular tube 1 is the mortise 10 to which it corresponds.

[0040] like Figure 6 As shown, the current round tube mortise and tenon structure requires two materials, A and B, to produce the mortise and tenon components. Mortises are milled out on the two materials A and B respectively as shown in the shaded parts in the figure, which causes waste and is difficult to produce.

[0041] The utility model of the round tube mortise and tenon structure, when making the mortise and tenon components, only one round tube 1 is needed, and the round tube 1 is cut with a tool T pointing to the axis of the round tube 1 to cut into the required mortise and tenon 1 7 and mortise and tenon 2 8. The mortise and tenon 1 7 and mortise and tenon 2 8 are made at the same time, which can save labor and materials. Figure 7 shown.

[0042] The existing mortise and tenon structures are mostly square in shape, and most of them are single mortise and single eye, with a single shape. However, the mortise and tenon of the circular tube mortise and tenon structure of the present invention has various shapes, which can be different top shape (Group A), step shape (Group B), spiral shape (Group C), or stacked type (Group D). It can be single mortise and single eye, or multiple mortises and multiple eyes (Group E). Figure 8 shown.

[0043] The mortise and tenon structure of the circular tube of the present invention can be replaced with components of different materials by re-jointing the mortise and tenon during mass production, thereby achieving an aesthetic effect; for slender wooden components, the deformation direction of the original wood fibers can be disrupted by joining the multi-layer stacked mortise and tenon joints, thereby achieving the effect of preventing bending and deformation.

[0044] With the development of science and technology, many new types of cutting tools have emerged, such as wire cutting, water jet cutting, laser cutting, etc. The diameter of the cutting tools can be very thin, even less than 0.05MM. These cutting tools combined with CNC technology make it very simple and easy to realize the new mortise and tenon structure.

[0045] During production, the round tube 1 is clamped with a chuck, and the axis UV of the round tube 1 is used as the rotation axis so that the round tube 1 can rotate R around the axis UV; the tool T is installed on a track, and a coordinate axis X is established so that the tool T can move S on the X axis, so that the X axis and the axis UV of the round tube are in the same plane, and the cutting direction C of the tool T always points to the axis UV of the round tube; the rotation amount of the round tube 1 and the movement amount of the tool on the X axis are linked, as shown in the following example: Figure 9 shown.

[0046] like Figure 10-14 As shown, taking the mortise and tenon structure in which both mortise and tenon 7 and mortise and tenon 8 have two tenons and two mortises as an example, the motion trajectory of tool T sequentially passes through M (0, 0°), P (100, 90°), N (0, 180°), Q (100, 270°), and M (0, 360°), cutting the circular tube 1. Finally, the circular tube 1 is cut into two sections, one of which is called mortise and tenon 7 and the other is called mortise and tenon 8. Mortise and tenon 7 and mortise and tenon 8 are manufactured simultaneously. Mortise and tenon 7 and mortise and tenon 8 can be separated from each other or connected to form a circular tube.

[0047] Both mortise and tenon joints 7 and 8 have two tenons 9 and two mortises 10. The tenon 9 is provided with a cut surface 11, a convex curved surface 12, and a concave curved surface 13. The convex curved surface 12 is larger than the concave curved surface 13. The tenon 9 and mortise 10 of mortise and tenon joint 7 correspond to the mortise 10 and tenon 9 of mortise and tenon joint 8. The space left after the tenon 9 is separated from the circular tube is the mortise 10 corresponding to the tenon 9. Specifically, the length of each tenon 9 is 100 and the width is 180°. The four surfaces MM'P'P, PP'N'N, NN'Q'Q, and QQ'M'M are all curved surfaces.

[0048] in, Figure 10 3 views of a mortise and tenon structure with two tenons and two mortises according to an embodiment of the present invention.

[0049] Figure 11 for Figure 10The cross-sectional view at positions A, B, C, D, and E in the middle main view (V) shows the changing relationship between the tenon 9 and the mortise 10 at positions A, B, C, D, and E. Figure 12 This is a three-view diagram of a mortise and tenon joint structure with two tenons and two mortise holes according to an embodiment of the present invention. Figure 13 for Figure 12 The cross-sectional view at positions E, D, C, B, and A in the middle main view (V) shows the changing relationship between the tenon 9 and the mortise 10 at positions E, D, C, B, and A.

[0050] like Figure 14 As shown, the process for making a two-tenon, two-mortise joint structure involves cutting a circular tube 1 through the MPNQM points with a tool pointed toward the tube's axis, separating the tube into a first mortise 7 and a second mortise 8. Mortise 7 and second mortise 8 are made simultaneously and can be separated or joined together to form a circular tube. The length of the rejoined circular tube is shortened to fill the gap. The figure also shows that the tenon 9 and mortise 10 of tenon 7 correspond to the mortise 10 and tenon 9 of tenon 8. The space left after tenon 9 is separated from the circular tube is the mortise 10 corresponding to tenon 9. Lines AB, CDE illustrate the manufacturing process.

[0051] Application examples:

[0052] Use a wooden round tube with an outer diameter of 34MM, an inner diameter of 16MM and a length of 300MM to make a four-layer stacked mortise and tenon structure with four tenons and four mortises.

[0053] Use a tool to pass through the points M (0, 0°), N (100, 45°), O (0, 90°), P (100, 135°), Q (0, 180°), F (100, 225°), G (0, 270°), H (100, 315°), and M (0, 360°) on the round tube in sequence, cut the round tube, and finally cut the round tube to cut out a pair of mortise and tenon structures with four tenons and four mortises. The tenon is 100MM long and 90° wide. Repeat the cutting operation 3 times along the axial direction to make a four-tenon, four-mortise, four-mortise, four-layer stacked mortise and tenon structure. Figure 15 As shown, A is the tool path diagram for cutting the round tube, and B is the unfolded diagram of the outer circle surface, showing the effect diagram of the 4-layer stacked mortise and tenon structure.

[0054] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0055] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A mortise and tenon structure of a circular tube, characterized in that: It includes a first mortise and tenon and a second mortise and tenon. The first mortise and tenon and the second mortise and tenon are two sections of round tubes separated by cutting the round tube with a tool. The first mortise and tenon and the second mortise and tenon can be separated from each other or connected to form the round tube.

2. The mortise and tenon structure of a round tube according to claim 1, characterized in that: The first mortise and tenon joint and the second mortise and tenon joint are formed by cutting the circular tube using a tool that always points to the axis of the circular tube.

3. The mortise and tenon structure of a round tube according to claim 2, characterized in that: The first mortise and tenon and the second mortise and tenon are both provided with a tenon and a mortise, and the tenon is provided with two cutting surfaces, two convex arc surfaces and two concave arc surfaces. The second convex arc surface of the tenon is larger than the second concave arc surface. The tenon and the mortise of the first mortise and tenon and the mortise and the tenon of the second mortise and tenon correspond to each other, and the space left after the tenon is separated from the round tube is the mortise to which it corresponds.

4. The mortise and tenon structure of a circular tube according to claim 3, characterized in that: The mortise and tenon 1 and the mortise and tenon 2 obtained by cutting and separating the round tube are single-tenon and single-mortise, or multiple-tenon and multiple-mortise.

5. The mortise and tenon structure of a circular tube according to claim 4, characterized in that: When the mortise and tenon 1 and the mortise and tenon 2 are butt-jointed to form a round tube, the length of the round tube will become shorter to fill the cutting gap, so that the mortise and tenon 1 and the mortise and tenon 2 are tightly joined.

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