A dovetail profile multidirectional connection mechanism

Abstract

The utility model provides a dovetail tenon section bar multidirectional connecting mechanism, include: six through connector, adapter tenon, connecting piece and section bar link, the adapter tenon is connected in six through connector through connecting piece, the adapter tenon still with section bar link mortise and tenon connection makes six through connector with section bar link high -efficient stable, detachable connection.

Description

Technical Field

[0001] This utility model relates to the field of profile connection, and in particular to a multi-directional connection mechanism for dovetail profiles. Background Technology

[0002] In existing profile connection technologies, traditional connection methods mainly suffer from the following problems: First, although bolted connections offer structural stability, they are inefficient to install and require cumbersome drilling and tapping processes; second, while welding and riveting connections offer high strength, they are permanent connections that cannot be adjusted or reused, and are only suitable for metal profiles, not composite material profiles; furthermore, existing quick-connect mechanisms often suffer from complex structures, high costs, and limited load-bearing capacity. Therefore, in the exhibition industry and modular furniture field, there is a need for a profile connection solution that allows for quick assembly and disassembly, reuse, and the maintenance of high connection strength. Utility Model Content

[0003] In order to overcome the above-mentioned technical defects, the purpose of this utility model is to provide a multi-directional connection mechanism for dovetail profiles, which uses a transition tenon to firmly and detachably connect the six-way connector to the profile rod, thereby achieving efficient, stable and detachable assembly of the profile.

[0004] To achieve the above objectives, this utility model discloses a multi-directional connection mechanism for dovetail profiles, comprising:

[0005] The six-way connector, the adapter tenon, the connector, and the profile rod are provided. The adapter tenon is connected to the six-way connector through the connector. The adapter tenon is also mortised and tenoned with the profile rod, so that the six-way connector is connected to the profile rod.

[0006] Preferably, one end of the adapter tenon is provided with an oblique dovetail tenon, and both ends of the profile rod are provided with dovetail tenon slots. The dovetail tenon of the adapter tenon and the dovetail tenon slot of the profile rod cooperate to form a mortise and tenon connection.

[0007] Preferably, the profile rod is provided with telescopic devices inside both ends, and the adapter tenon is provided with countersunk holes. The telescopic devices move upward along the axial direction of the profile rod, extend into and retract into the countersunk holes inside the adapter tenon, and fix and separate the adapter tenon from the profile rod.

[0008] Preferably, the profile rod includes a profile square tube, a first rod end assembly and a second rod end assembly, the first rod end assembly and the second rod end assembly being respectively connected to both ends of the profile square tube, and the first rod end assembly and the second rod end assembly are mirror-symmetrical components.

[0009] Preferably, the first rod end assembly includes a rod end tenon, a telescopic device, and a limiting device. The telescopic device is movably connected inside the rod end tenon, and the limiting device is connected to the rod end tenon and covers the end of the rod end tenon to restrict the movement of the telescopic device. The second rod end assembly contains the same parts and the same parts connection method as the first rod end assembly.

[0010] Preferably, one end of the tenon groove is connected to the dovetail tenon groove, and the other end face is covered with a limiting structure. The tenon groove is provided with a stepped hole in the axial direction, and the telescopic device is provided in the stepped hole. The tenon groove is provided with a coaxial hole in the direction perpendicular to the stepped hole.

[0011] Preferably, the telescopic device includes a telescopic shaft, an eccentric shaft structure, and a guide sleeve. One end of the telescopic shaft is a cylindrical shaft, and the other end is provided with a transverse groove. Both ends of the eccentric shaft structure are coaxial cylinders, and the middle section is an eccentric shaft. The coaxial cylinder is disposed in the coaxial hole of the tenon groove at the rod end. The diameter of the eccentric shaft is equal to the width of the transverse groove of the telescopic shaft. The eccentric cylindrical surface of the eccentric shaft is tangent to the plane of the transverse groove. The guide sleeve is nested on the coaxial cylinder at one end of the eccentric shaft structure and connected to the coaxial hole. The end face of the coaxial cylinder fixed to the guide sleeve is provided with a groove.

[0012] Preferably, the limiting device includes a lower stop block and a countersunk screw. The lower stop block is an L-shaped shaft and is connected to the tenon groove at the end of the rod by the countersunk screw.

[0013] Preferably, the telescopic device further includes a conical spring connected between the lower stopper and the telescopic shaft, providing elastic force for the telescopic shaft to extend.

[0014] Preferably, the six-way connector has a cubic structure with six faces, each face having a threaded hole at its center. The connector is a connecting screw, which passes through the countersunk hole and connects to the threaded hole of the six-way connector.

[0015] Compared with existing technologies, the above technical solution has the following advantages:

[0016] 1. Enables rapid connection and separation between profiles, improving assembly and disassembly efficiency;

[0017] 2. Maintain the stability and load-bearing capacity of the connection;

[0018] 3. It can adapt to the connection requirements of different numbers of profiles in three orthogonal directions, and can realize straight-through connection, corner connection, tee, cross, five-way and six-way connection as needed;

[0019] 4. Provides good tolerance compensation capability to prevent loosening of the connection due to machining errors. Attached Figure Description

[0020] Figure 1This is an exploded structural diagram of the connecting mechanism disclosed in an embodiment of the present utility model;

[0021] Figure 2 This is an exploded view of the profile rod disclosed in the embodiment of this utility model;

[0022] Figure 3 This is an exploded view of the rod end assembly disclosed in an embodiment of the present utility model;

[0023] Figure 4 This is a cross-sectional view of the dovetail profile connection mechanism disclosed in an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the external shape of the cube frame composed of the connecting mechanism disclosed in the embodiment.

[0025] Reference numerals: 1-Six-way connector, 11-Threaded hole, 2-Adapter tenon, 21-Counterhead hole, 3-Connector, 4-Profile rod, 41-First rod end assembly, 42-Second rod end assembly, 43-Profile square tube, 411-Rod end tenon, 4111-Stepped hole, 4112-Coaxial hole, 412-Telescopic shaft, 413-Eccentric shaft structure, 414-Lower plug, 415-Guide sleeve, 416-Conical spring, 417-Counterhead screw. Detailed Implementation

[0026] The advantages of this utility model are further illustrated below with reference to the accompanying drawings and specific embodiments.

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0028] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0029] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0030] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrating this invention and has no specific meaning in itself. Therefore, "module" and "part" can be used interchangeably.

[0033] Figure 1 This is an exploded structural diagram of the connecting mechanism disclosed in an embodiment of this utility model. Figure 1 As shown, a multi-directional connection mechanism for dovetail profiles includes:

[0034] The six-way connector 1, the adapter tenon 2, the connector 3, and the profile rod 4 are provided. The adapter tenon 2 is connected to the six-way connector 1 through the connector 3. The adapter tenon 2 is also mortised and tenoned with the profile rod 4, so that the six-way connector 1 and the profile rod 4 are connected.

[0035] Specifically, this utility model detachably connects the six-way connector 1 to the profile rod 4. On the one hand, the adapter tenon 2 is fixedly connected to the six-way connector 1 using the connector 3. On the other hand, the adapter tenon 2 is mortised and tenoned with the profile rod 4. Thus, the profile rod 4 can be assembled into a profile structure in a multi-directional, fast and detachable manner through the six directions of the six-way connector 1.

[0036] Preferably, the six-way connector 1 has a cubic structure with six faces. In a preferred embodiment, each face has a threaded hole 11 at its center. The adapter tenon 2 has a countersunk hole 21 at its center. The connector 3 is a connecting screw that passes through the countersunk hole 21 and connects to the threaded hole 11 of the six-way connector 1. Specifically, all six faces of the six-way connector 1 can be fitted with profile members 4 after the adapter tenon 2 is installed. These members can be continuously combined and extended in three-dimensional space according to usage needs to form the required structural frame.

[0037] Preferably, one end of the adapter tenon 2 is provided with an angled dovetail tenon, and both ends of the profile rod 4 are provided with dovetail tenon slots. The dovetail tenon of the adapter tenon 2 and the dovetail tenon slot of the profile rod 4 cooperate to form a mortise and tenon connection. Specifically, one end of the adapter tenon 2 is flat to ensure that the two are firmly fixed when connected with the six-way connector 1, while the dovetail tenon is provided at the end facing the profile rod 4 to achieve a mortise and tenon fit with the profile rod.

[0038] Preferably, the profile rod 4 is further provided with telescopic devices inside both ends, and the adapter tenon 2 is provided with countersunk holes 21 inside. The telescopic device moves upward along the axial direction of the profile rod 4, extends into and retracts into the countersunk holes 21 inside the adapter tenon 2, so that the adapter tenon 2 is fixed and separated from the profile rod 4. Specifically, when the telescopic device extends into the adapter tenon 2, the adapter tenon 2 is connected to the profile rod 4; conversely, when the profile rod 4 is retracted, the adapter tenon 2 is disconnected from the profile rod 4. It should be noted that the disconnection here only refers to the connection without the telescopic device. That is to say, the locking method of a set of profile rods 4 and six-way connectors 1 is: first, a mortise and tenon connection is used, and then the telescopic device is used to lock it, achieving high strength and stability.

[0039] Preferably, such as Figure 2 As shown, the profile rod 4 includes a square tube 43, a first rod end assembly 41, and a second rod end assembly 42. The first rod end assembly 41 and the second rod end assembly 42 are respectively connected to both ends of the square tube 43. The first profile rod 4 and the profile rod are mirror images of each other. The components and connection methods of the second rod end assembly 42 are the same as those of the first rod end assembly 41. In one embodiment, the profile rod 4 is composed of three components bonded together: the front end is the first rod end assembly 41, the middle part is the square tube 43, and the rear end is the second rod end assembly 42. The first rod end assembly 41 and the second rod end assembly 42 are mirror images of each other assembled from the same parts. Further, taking the first rod end assembly 41 as an example, the specific structure is shown in [reference needed]. Figure 3 The explanation is as follows:

[0040] The first rod end assembly 41 includes a rod end tenon 411, a telescopic device, and a limiting device. The telescopic device is connected inside the rod end tenon 411 and moves upward along the axial direction of the rod end tenon 411 to fix and separate the first rod end assembly 41 from the adapter tenon 2. The limiting device is connected to the rod end tenon 411 and covers the end of the rod end tenon 411 without the dovetail tenon, thus restricting the movement of the telescopic device.

[0041] One end of the rod end tenon 411 is connected to the dovetail tenon, and the other end face is covered with a limiting structure. The rod end tenon 411 is provided with a stepped hole 4111 in the axial direction. The telescopic device is movably connected in the stepped hole 4111. The rod end tenon 411 is provided with a coaxial hole 4112 in the vertical direction of the stepped hole 4111.

[0042] The telescopic device includes a telescopic shaft 412, an eccentric shaft structure 413, and a guide sleeve 415.

[0043] One end of the telescopic shaft 412 is a cylindrical shaft, and the other end is provided with a transverse groove. Specifically, the telescopic shaft 412 is a stepped shaft structure. The cylindrical surface of the front end fits with the hole in the center of the tenon groove 411 at the end of the rod, i.e., the stepped hole 4111. The rear part is machined into a flat surface and is provided with a transverse groove.

[0044] The two ends of the eccentric shaft structure 413 are coaxial cylinders, and the middle section is an eccentric shaft. The coaxial cylinder is located in the coaxial hole 4112 of the tenon groove 411 at the end of the rod. The diameter of the eccentric shaft is equal to the width of the transverse groove of the telescopic shaft 412. The eccentric cylindrical surface of the eccentric shaft is tangent to the plane of the transverse groove.

[0045] The guide sleeve 415 is nested on the coaxial cylinder at one end of the eccentric shaft structure 413 and connected to the coaxial hole 4112. The end face of the coaxial cylinder fixed to the guide sleeve 415 is provided with a groove.

[0046] Specifically, the eccentric shaft has a three-section axial structure. The upper and lower sections are coaxial cylinders, installed in the coaxial holes 4112 that pass through the upper and lower ends of the tenon groove 411 at the rod end. The upper end face is slotted, i.e., it has a groove opening, which is convenient for screwing with a screwdriver. The middle section is an eccentric shaft with a diameter equal to the width of the transverse groove at the rear of the telescopic shaft 412. The eccentric cylindrical surface is tangent to the groove plane. The guide sleeve 415 is a cylindrical bushing with a flange. Its outer surface mates with the coaxial hole 4112 at the upper end of the tenon groove 411 at the rod end, and its inner surface mates with the upper section of the eccentric shaft, i.e., with the upper coaxial cylinder of the eccentric shaft, so that the eccentric shaft can rotate freely in the guide sleeve 415.

[0047] Furthermore, the telescopic device also includes a conical spring 416, which is connected between the lower stopper 414 and the telescopic shaft 412 to provide an extension force for the telescopic shaft 412.

[0048] The limiting device includes a lower stop block 414 and a countersunk screw 417. The lower stop block 414 is an L-shaped shaft, and the lower stop block 414 is connected to the tenon 411 at the rod end by the countersunk screw 417. Specifically, the outer periphery of the entire lower stop block matches the inner contour 4111 of the stepped hole. The lower stop block 414 is preferably an L-shaped shaft. The long axis of the L-shaped shaft is fixed to the tenon 411 at the rod end by the countersunk screw 417, and the short axis of the L-shaped shaft mates with the rear plane of the telescopic shaft 412 to restrict the movement of the telescopic shaft 412.

[0049] It should be noted that since the first rod end assembly 41 and the second rod end assembly 42 contain the same parts and have the same part connection method, the structural components and connection method of the second rod end assembly 42 will not be described again.

[0050] like Figure 4 As shown, the installation process of one embodiment of this utility model is as follows:

[0051] According to the required installation direction of the profile, tighten the connecting screws to fix the adapter tenon 2 in the threaded hole 11 on the corresponding side of the six-way connector 1. Align the direction of the dovetail tenon grooves at both ends of the profile member 4 with the dovetail tenon on the adapter tenon 2, and slide it in along the mortise direction until the profile member 4 is flush with all four sides of the adapter tenon 2. The telescopic shaft 412 is now in the coaxial hole 4111 of the tenon groove 411 at the end of the rod, as follows: Figure 5 As shown. Use a flathead screwdriver to rotate the slot, causing the eccentric shaft structure to rotate 180°. This rotation pushes the telescopic shaft 412 out of the coaxial hole 4111 of the tenon 411 at the rod end, inserting it into the countersunk hole 21 at the center of the adapter tenon 2, thus connecting the profile rod 4 and the adapter tenon 2. Figure 5 As shown.

[0052] During disassembly, use a flathead screwdriver to rotate the slot, causing the eccentric shaft structure to rotate 180°. At this time, the rotation of the eccentric shaft causes the telescopic shaft 412 to retract into the stepped hole 4111 of the tenon groove 411 at the rod end. The dovetail joint of the profile rod 4 and the adapter tenon 2 can slide and separate along the tenon groove direction, thus realizing the disassembly of the parts.

[0053] Multiple six-way connectors 1, adapter tenons 2, and profile rods of different lengths 4 are combined and connected, continuously expanding in three-dimensional space, and can be assembled into the required frame structure; such as Figure 5 As shown, the cubic frame shape is constructed by connecting multiple profile rods 4 and six-way connectors 1.

[0054] Therefore, one embodiment of this utility model can achieve the following effects:

[0055] First, multiple adapter tenons 2 are installed on the six faces of the six-way connector 1 using connecting screws 3 to connect the profile rods 4. Different numbers of adapter tenons 2 are installed on the six-way connector 1 to form different types of connections, greatly reducing the number of accessories. For example, one six-way connector 1 with two adapter tenons 2 can achieve a straight-through connection or an L-shaped connection between two profile rods 4; one six-way connector 1 with three adapter tenons 2 can achieve a T-shaped connection or a three-way connection between three profile rods 4; one six-way connector 1 with four adapter tenons 2 can achieve a four-way connection between four profile rods 4; one six-way connector 1 with five adapter tenons 2 can achieve a five-way connection between five profile rods 4; and one six-way connector 1 with six adapter tenons 2 can achieve a six-way connection between six profile rods 4.

[0056] Secondly, each profile member 4 is fixed by a dovetail joint and a telescopic shaft structure, allowing for disassembly and assembly using electric or manual tools, facilitating structural disassembly, transportation, or design modifications. All parts are reusable, saving costs and being environmentally friendly.

[0057] Third, after the mechanism is assembled, the tenon 2 of the adapter is flush with the profile rod 4, similar to the appearance of woodworking mortise and tenon joints, without affecting the outer contour of the original profile, and maintaining the overall appearance of the profile is simple and beautiful.

[0058] In summary, the dovetail tenon multi-directional connection mechanism disclosed in this utility model embodiment utilizes adapter tenons to connect a six-way connector to a profile member. On one hand, the adapter tenon is fixed to the six-way connector via connecting screws, and the six-way connector provides a multi-directional assembly structure for the profile frame. On the other hand, both ends of the profile member are provided with dovetail tenon slots that mate with the dovetail tenons in the adapter tenon, realizing a mortise and tenon connection between the profile member and the adapter tenon. Simultaneously, both ends of the profile member are also provided with movable telescopic shafts. These telescopic shafts can extend into the adapter tenon and be fixed therewith, and can retract into the profile member to disconnect the connection. Thus, the profile assembly can be quickly disassembled and reused. Furthermore, the dual connection method between the profile member and the adapter tenon ensures high load-bearing capacity and high connection strength of the profile connection.

[0059] It should be noted that the embodiments of this utility model have better implementability and are not intended to limit this utility model in any way. Any person skilled in the art may use the above-disclosed technical content to change or modify it into equivalent effective embodiments. However, any modifications or equivalent changes and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A multi-directional connection mechanism for dovetail profiles, characterized in that, include: The six-way connector, the adapter tenon, the connector, and the profile rod are provided. The adapter tenon is connected to the six-way connector through the connector. The adapter tenon is also mortised and tenoned with the profile rod, so that the six-way connector is connected to the profile rod.

2. The dovetail tenon profile multi-directional connection mechanism as described in claim 1, characterized in that, One end of the adapter tenon is provided with an oblique dovetail tenon, and both ends of the profile rod are provided with dovetail tenon grooves. The dovetail tenon of the adapter tenon and the dovetail tenon groove of the profile rod cooperate to form a mortise and tenon connection.

3. The dovetail tenon profile multi-directional connection mechanism as described in claim 2, characterized in that, The profile rod is also provided with telescopic devices inside both ends, and the adapter tenon is provided with countersunk holes. The telescopic devices move upward along the axial direction of the profile rod, extend into and retract into the countersunk holes of the adapter tenon, and fix and separate the adapter tenon from the profile rod.

4. The dovetail tenon profile multi-directional connection mechanism as described in claim 3, characterized in that, The profile rod includes a profile square tube, a first rod end assembly, and a second rod end assembly. The first rod end assembly and the second rod end assembly are respectively connected to both ends of the profile square tube, and the first rod end assembly and the second rod end assembly are mirror-symmetrical components.

5. The dovetail tenon profile multi-directional connection mechanism as described in claim 4, characterized in that, The first rod end assembly includes a rod end tenon, a telescopic device, and a limiting device. The telescopic device is movably connected inside the rod end tenon, and the limiting device is connected to the rod end tenon and covers the end of the rod end tenon to restrict the movement of the telescopic device. The second rod end assembly contains the same parts and the same parts connection method as the first rod end assembly.

6. The dovetail tenon profile multi-directional connection mechanism as described in claim 5, characterized in that, One end of the tenon groove is connected to the dovetail tenon groove, and the other end face is covered with a limiting structure. The tenon groove is provided with a stepped hole in the axial direction, and the telescopic device is provided in the stepped hole. The tenon groove is provided with a coaxial hole in the direction perpendicular to the stepped hole.

7. The dovetail tenon profile multi-directional connection mechanism as described in claim 6, characterized in that, The telescopic device includes a telescopic shaft, an eccentric shaft structure, and a guide sleeve. One end of the telescopic shaft is a cylindrical shaft, and the other end is provided with a transverse groove. Both ends of the eccentric shaft structure are coaxial cylinders, and the middle section is an eccentric shaft. The coaxial cylinder is located in the coaxial hole of the tenon groove at the rod end. The diameter of the eccentric shaft is equal to the width of the transverse groove of the telescopic shaft. The eccentric cylindrical surface of the eccentric shaft is tangent to the plane of the transverse groove. The guide sleeve is nested on the coaxial cylinder at one end of the eccentric shaft structure and connected to the coaxial hole. The end face of the coaxial cylinder fixed to the guide sleeve is provided with a groove.

8. The dovetail tenon profile multi-directional connection mechanism as described in claim 7, characterized in that, The limiting device includes a lower stop block and a countersunk screw. The lower stop block is an L-shaped shaft and is connected to the tenon groove at the end of the rod by the countersunk screw.

9. A dovetail tenon profile multi-directional connection mechanism as described in claim 8, characterized in that, The telescopic device also includes a conical spring connected between the lower stopper and the telescopic shaft, providing elastic force for the telescopic shaft to extend.

10. A multi-directional connection mechanism for dovetail profiles as described in claim 3, characterized in that, The six-way connector has a cubic structure with six faces, each with a threaded hole at its center. The connector is a connecting screw, which passes through the countersunk hole and connects to the threaded hole of the six-way connector.

Images