Connection assemblies and connection systems

Abstract

A connection assembly and a connection system, the connection assembly including a reinforcing member (1), an eccentric wheel (2) and an insert (3). The reinforcing member (1) is provided with opposing connection ends (11) and attachment ends (12). At the end of the connection end (11), there is a connection channel (13), and on the side wall of the connection end (11), there is at least one deformation gap (14). A part of the connection end (11) forms at least one elastic part (15) through the deformation gap (14). On the outer wall of the elastic part (15), there is a clamping protrusion (151). On the outer wall of the reinforcing member (1), there is an attachment space (16) connected to the connection channel (13), and the eccentric wheel (2) is rotatably provided in the attachment space (16). The insert (3) has an insertion channel (31) penetrating both ends, and one end of the insert (3) is inserted into the connection channel (13) from the connection end (11) and can be switched between a loosening position and a locking position. When switching the insert (3) from the loosening position to the locking position, the insert (3) deforms and expands at least a part of the elastic part (15). Since the connection assembly can be used to easily pull out the reinforcing member (1) from the attachment channel (101), the operation is convenient.

Description

Technical Field

[0001] The present invention relates to a connection assembly and a connection system, which are used for connecting a first member and a second member. In particular, it is used for connecting furniture members.

Background Art

[0002] As people's aesthetic awareness improves, in order to enhance the aesthetics of furniture and equipment, stealth connectors are gradually used between two furniture panels or two metalware. Among them, three-in-one connectors and two-in-one connectors are widely used for connecting two furniture panels. However, the hole diameter of the member using the eccentric wheel of the existing three-in-one connector is large (usually 10 mm or more). The user can easily see the eccentric wheel from the large hole diameter, and the stealth of the three-in-one connector is reduced, which affects the aesthetics of the furniture.

[0003] Therefore, Chinese Patent Publication No. CN216519026U discloses "a reinforcing member, a connection assembly and a connection system". First, an eccentric wheel is provided in the reinforcing member in advance, and the eccentric wheel and the reinforcing member are provided in the mounting channel of the first member from one side of the member. Thereby, the eccentric wheel is connected corresponding to the first mounting hole of the first member. Finally, using a tool such as a driver, the eccentric wheel is locked to the connecting rod through the first mounting hole. Thereby, a stealth connection between the first member and the second member is realized. Since there is no need to install the eccentric wheel into the member from the first mounting hole, the first mounting hole is used for a tool such as a driver to pass through, and the hole diameter of the first mounting hole is greatly reduced, improving the stealth of the eccentric wheel in the member.

[0004] However, the reinforcing member in the above existing technology is pressed into the member by chamfering the tightening surface. Therefore, it is difficult to remove the reinforcing member from the member after installation. When the mounting position of the reinforcing member is displaced or the reinforcing member is removed from the member, the member must be damaged to remove the reinforcing member. Such an operation is difficult and inefficient. Moreover, it is not good for the aesthetics and reuse of the member. [Overview of the Initiative]

[0005] To solve the problem of existing technologies that require removing reinforcing members from components, one aspect of the present invention provides a connecting assembly comprising reinforcing members, eccentric wheels, and inserts. The reinforcing member is provided with opposing connecting ends and mounting ends, the end of the connecting end has a connecting channel, the side wall of the connecting end has at least one deformation gap, a part of the connecting end forms at least one elastic portion through the deformation gap, the outer wall of the elastic portion has a fastening projection, and the outer wall of the reinforcing member has a mounting space that connects to the connecting channel. The eccentric wheel is rotatably mounted within the mounting space. The insert has an insertion channel that runs through both ends, and one end of the insert is inserted into the connection channel from the connection end. At least a portion of the insertion channel is used in cooperation with an external tool to move the insert into the connection channel, or at least a portion of the insertion channel is used in cooperation with an external tool to rotate the insert into the connection channel. Of these, the inner wall of the insertion channel has at least one operating plane, operating protrusion, or operating groove, or at least a portion of the cross-section of the insertion channel is the same as the cross-section of the inner ring of the sleeve. The insert is switched between a loosened position and a locked position, and when the insert is switched from the loosened position to the locked position, the insert deforms and expands at least a part of the elastic portion.

[0006] In one embodiment, the device includes two deformation gaps, each of which is provided on the left and right sides of the connection end, and the elastic portion is formed on the left and right sides of the connection end by the deformation gaps.

[0007] In one implementation method, the reinforcing material is circular in shape along the line of sight from the connection end to the mounting end.

[0008] In one implementation, the inner wall of the elastic portion and the inner wall of the connecting channel both form a first female threaded portion, and the outer peripheral side wall of the insert has a first male threaded portion that combines with and connects to the first female threaded portion.

[0009] In one implementation, along the line of sight from the connection end to the mounting end, the shape and area of ​​the cross-section of the connection channel in the elastic portion are the same, and the cross-sectional area of ​​the outer circumference of the outline of the fastening projection is greater than the cross-sectional area of ​​the outer circumference of the outline of the mounting end.

[0010] In one implementation, along the line of sight from the connection end to the mounting end, the inner wall of the elastic portion gradually approaches the central axis of the connection channel.

[0011] In one embodiment, the inner wall of the connecting channel is smooth, a connecting ring is provided on the inner wall of one end of the elastic portion near the mounting space, the outer circumference of the connecting ring is spaced apart from the inner circumference of the connecting channel, a second female thread is provided on the inner circumference of the connecting ring, and the outer side wall of the insert has a second male thread that connects in combination with the second female thread.

[0012] In one embodiment, the connection assembly according to claim 1, wherein the inner wall of the connection channel is smooth, and along the direction from the connection end toward the mounting end, the inner wall of the elastic portion at one end closer to the mounting space gradually approaches the central axis of the connection channel. The outer peripheral wall of the insert is smooth, and a release groove is provided on the outer wall of one end of the insert.

[0013] One implementation method includes a connecting rod, A connecting boss is formed protruding from one end of the connecting rod, a mounting portion is provided at the other end of the connecting rod, an operating portion is fixedly provided between the connecting boss and the mounting portion, there is a relative gap between the operating portion and the connecting boss for forming a connecting groove, the operating portion is used to rotate at least a portion of the connecting rod by an external tool, the operating portion is made of plastic, and the outer wall of the operating portion has at least one operating plane, operating hole, operating protrusion, or operating groove, or a cross-section that matches the cross-section of the sleeve, The eccentric wheel has an eccentric groove, and a clamp arm is provided on at least one inner wall of the eccentric groove, and the eccentric wheel can rotate between a released position and a locked position. When the eccentric wheel is in the released position, the connecting boss is inserted into the eccentric groove through the insertion channel, and when the eccentric wheel is in the locked position, the clamp arm restricts the connecting boss from being pulled out of the eccentric groove.

[0014] Furthermore, a second aspect of the present invention provides a connection system, which includes a connection assembly between the first member and the first aspect. A mounting channel is provided on one side of the first member, and connecting holes communicating with the mounting channel are provided on the upper and bottom of the first member, the reinforcing member is inserted into the mounting channel, the mounting space is connected to the connecting hole, and the eccentric wheel is connected to the connecting hole. When the insert is switched from the loosened position to the locked position, the insert deforms and expands at least a portion of the elastic part, thereby pressing the tightening projection against the inner wall of the mounting channel.

[0015] Based on the first and second aspects of the present invention described above, the connection assembly and connection system of the present invention have the following advantages compared to existing technologies: The reinforcing member is inserted into the mounting channel of the first member and can easily slide within the mounting channel. The outer wall of the reinforcing member and the inner wall of the mounting channel engage with each other, or are nearly engaged, allowing the reinforcing member to be easily inserted into or removed from the mounting channel. After inserting the reinforcing member into the mounting channel, when one end of the insert is inserted into the connecting channel and the insert is switched from the loose position to the locked position, the insert deforms and expands at least a portion of the elastic part of the reinforcing member. This causes the clamping projection on the elastic part to press against the inner wall of the mounting channel, increasing the sliding friction force of the reinforcing member within the mounting channel, making it difficult for the reinforcing member to slide within the mounting channel, and pressing the reinforcing member into the mounting channel. When removing the reinforcing member from the first member, the insert is switched to the loose position to return the elastic part to its original state, releasing the clamping effect between the clamping projection on the elastic part and the mounting channel. This allows the reinforcing member to slide freely within the mounting channel and allows the reinforcing member to be easily removed from the mounting channel. Such operations are convenient and efficient, avoid damage to the primary component, ensure the integrity and aesthetics of the component, and facilitate the reuse of the component.

[0016] To solve the problem of existing technologies that require removing reinforcing members from components, a third aspect of the present invention provides a connecting assembly comprising reinforcing members and eccentric wheels, The reinforcing member is provided with opposing connecting ends and mounting ends, the end of the connecting end has a connecting channel, the mounting end has an eccentric hole that connects to the connecting channel, the outer wall of the mounting end has a deformed gap that connects to the eccentric hole, and the outer wall of the mounting end has a fastening projection. The outer circumferential side wall of the eccentric wheel is an eccentric curved surface, and the outer circumferential side wall of the eccentric wheel fits into the inner circumferential side wall of the eccentric hole, and the eccentric wheel is rotatably mounted inside the eccentric hole. The eccentric wheel can rotate between a released position and a locked position, and when the eccentric wheel is switched from the loosened position to the locked position, the eccentric wheel deforms and expands a part of the side wall of the mounting end.

[0017] In one implementation method, the reinforcing material is circular in shape along the direction from the connection end to the mounting end.

[0018] In one method of implementation, at least a portion of the connecting channel rotates the reinforcing member in cooperation with an external tool, The inner wall of the connecting channel has at least one operating plane, operating protrusion, or operating groove, or at least a portion of the cross-section of the connecting channel is the same as the cross-section of the inner ring of the sleeve.

[0019] Furthermore, a fourth aspect of the present invention provides a connection system, comprising a first member and the third aspect of the connection assembly, A mounting channel is provided on one side of the first member, and connecting holes communicating with the mounting channel are provided on the upper and bottom of the first member, the reinforcing member is inserted into the mounting channel, the eccentric hole is connected to the connecting hole, and the eccentric wheel is connected to the connecting hole. When the eccentric wheel is switched from the loosened position to the locked position, the eccentric wheel deforms and expands at least a portion of the side wall of the mounting end, causing the tightening projection to be pressed against the inner wall of the mounting channel.

[0020] Based on the third and fourth technical solutions of the present invention described above, the connection assembly and connection system of the present invention have the following advantages compared to existing technologies: The reinforcing member is inserted into the mounting channel in the first member and can slide easily within the mounting channel. The outer wall of the reinforcing member and the inner wall of the mounting channel fit or nearly fit with each other, enabling the reinforcing member to be easily inserted into the mounting channel or easily withdrawn from the mounting channel. After inserting the reinforcing member into the mounting channel, a tool such as a driver is used to pass through the connecting hole and switch the eccentric wheel from the loose position to the locked position. Then, the eccentric wheel expands by deforming a part of the side wall of the mounting end, pressing the clamping protrusion at the mounting end against the inner wall of the mounting channel, increasing the sliding friction force of the reinforcing member in the mounting channel, making it difficult for the reinforcing member to slide in the mounting channel, and pressing the reinforcing member in the mounting channel. When removing the reinforcing member from the first member, switch the eccentric wheel to the loose position to restore the mounting end to its original state, and release the clamping effect between the clamping protrusion at the mounting end and the mounting channel, so that the reinforcing member can slide freely in the mounting channel and can be easily withdrawn from the mounting channel. Such an operation is convenient and efficient, avoiding damage to the first member, ensuring the integrity and aesthetics of the member, and being useful for the reuse of the member.

Brief Description of the Drawings

[0021] [Figure 1] It is a diagram showing the first structure of the connection assembly in Embodiment 1 of the present invention. [Figure 2] It is a cross-sectional view of FIG. 1. [Figure 3] It is a diagram showing the eccentric wheel provided in advance on the reinforcing member in Embodiment 1 of the present invention. [Figure 4] It is a cross-sectional view of FIG. 3. [Figure 5] It is a diagram showing the structure of the reinforcing member of the connection assembly in FIG. 1. [Figure 6] It is a cross-sectional view of FIG. 5. [Figure 7] It is a cross-sectional view of FIG. 5. [Figure 8] It is a diagram showing another structure of the reinforcing member of the connection assembly in FIG. 1. [Figure 9]This is a cross-sectional view of Figure 8. [Figure 10] This figure shows the structure of the insert in the connection assembly in Figure 1. [Figure 11] Figure 1 shows a connection system consisting of a connection assembly and a first member. [Figure 12] This diagram shows the connecting assembly in Figure 1 being connected to the connecting rod. The eccentric wheel is in the released position. [Figure 13] This diagram shows the connecting assembly in Figure 1 being connected to the connecting rod. The eccentric wheel is in the locked position. [Figure 14] This diagram shows the disassembled structure of the connection assembly and connecting rod used in the first and second members, as shown in Figure 1. [Figure 15] This is a cross-sectional view showing the connection status in Figure 14. [Figure 16] This is an enlarged view of section G in Figure 15. [Figure 17] This figure shows the second structure of the reinforcing material in Example 1 of the present invention. [Figure 18] This is a cross-sectional view of Figure 17. [Figure 19] This figure shows another structure of the reinforcing material for the connecting assembly in Figure 1. [Figure 20] This is a cross-sectional view of Figure 19. [Figure 21] This figure shows the second structure of the connection assembly in Embodiment 1 of the present invention. [Figure 22] This is a cross-sectional view of Figure 21. [Figure 23] This figure shows the structure of the reinforcing material of the connecting assembly in Figure 21. [Figure 24] This is a cross-sectional view of a portion of Figure 23. [Figure 25] This is a cross-sectional view of Figure 23. [Figure 26] This figure shows the structure of the insert in the connection assembly in Figure 21. [Figure 27] This figure shows the sixth structure of the reinforcing material in Embodiment 1 of the present invention. [Figure 28] This is a cross-sectional view shown in Figure 27. [Figure 29] This figure shows the structure of the insert for connecting to the reinforcing material in Figure 27. [Figure 30] This figure shows the structure of the connection assembly in Embodiment 2 of the present invention. [Figure 31] This figure shows the structure of the reinforcing material of the connecting assembly in Figure 30. [Figure 32] Figure 31 shows the connecting assembly being connected to the connecting rod. The eccentric wheel is in the released position. [Figure 33] Figure 31 shows the connecting assembly being connected to the connecting rod. The eccentric wheel is in the locked position. [Figure 34] This diagram shows the disassembled structure of the connecting assembly and connecting rod used in the first and second members, as shown in Figure 31. [Modes for carrying out the invention]

[0022] The specific methods for implementing the present invention will be described in detail below with reference to the attached figures and examples. The following examples are used to illustrate the present invention, but do not limit the scope of the invention.

[0023] In the description of this invention, directions and positional relationships indicated by terms such as "center," "vertical," "horizontal," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," and "counterclockwise" are based on the attached diagrams. These are solely for the purpose of conveniently describing the invention and simplifying the explanation. They do not imply that the devices or elements mentioned must have a specific orientation, be assembled in a specific orientation, or be operated in a specific orientation. Therefore, they should not be understood as limitations of this invention.

[0024] Furthermore, the terms “first” and “second” are used for descriptive purposes and do not imply relative importance or implicitly indicate the number of technical features shown. Therefore, features defined as “first” and “second” include one or more such features, explicitly or implicitly. In this description, “multiple” means two or more unless explicitly and specifically limited.

[0025] In the present invention, unless explicitly and specifically limited, terms such as “attachment,” “connection,” “joining,” and “fixing” should be understood broadly. For example, it could mean a fixed connection, a removable connection, or integration. It could mean a mechanical connection or an electrical connection. It could mean a direct connection, a connection through an intermediary, an internal connection between two elements, or an interaction between two elements. Those skilled in the art will understand the specific meaning of the terms in the present invention in accordance with the specific context.

[0026] In the present invention, unless explicitly and specifically limited, the presence of a first feature "above" or "below" a second feature may include direct contact between the first and second features, or it may include contact between the first and second features through another feature between them without direct contact. Furthermore, the presence of a first feature "above," "above," or "on the top surface" of a second feature includes indicating that the first feature is directly above or diagonally above the second feature, or that the first feature is higher horizontally than the second feature. The presence of a first feature "below," "below," or "on the bottom surface" of a second feature includes indicating that the first feature is directly below or diagonally below the second feature, or that the first feature is lower horizontally than the second feature.

[0027] In this invention, one of the two connected furniture panels is designated as the first member, and the other as the second member. The shape and material of the first member may or may not be the same as those of the second member. Its shape may be, for example, a plate-like body, a block-like body, or a column-like body. Its material may be wood, plastic, metal, polymer composite material, or an aggregate thereof. There are no limitations here. [Examples]

[0028] As shown in Figures 1 to 29, Embodiment 1 of the present invention provides a connection assembly. It includes a reinforcing member 1, an eccentric wheel 2, and an insert 3. The reinforcing member 1 is provided with opposing connecting ends 11 and mounting ends 12. The end of the connecting end 11 has a connecting channel 13, and the side wall of the connecting end 11 has at least one deformation gap 14. Part of the connecting end 11 forms at least one elastic portion 15 through the deformation gap 14. The outer wall of the elastic portion 15 has a clamping projection 151. The outer wall of the reinforcing member 1 is provided with a mounting space 16 that connects to the connecting channel 13. The eccentric wheel 2 is rotatably mounted in the mounting space 16. The insert 3 has an insertion channel 31 that runs through both ends of the insert 3, and one end of the insert 3 is inserted from the connecting end 11 into the connecting channel 13. At least part of the insertion channel 31 is used in cooperation with an external tool to move the insert 3 into the connecting channel 13. Alternatively, at least part of the insertion channel 31 is used in cooperation with an external tool to rotate the insert 3 into the connecting channel 13. The inner wall of the insertion channel 31 has at least one operating plane, operating protrusion, or operating groove, or at least a portion of the cross-section of the insertion channel 31 is the same as the cross-section of the inner ring of the sleeve. The insert 3 is then switched between a loose position and a locked position. When the insert 3 is switched from the loose position to the locked position, the insert 3 deforms and expands at least a portion of the elastic portion 15.

[0029] When in use, the eccentric wheel 2 is pre-installed so as to be rotatable within the mounting space 16 of the reinforcing member 1. The eccentric wheel 2 and the reinforcing member 1 are installed inside the first member 10 from one side of the first member 10. Using a tool such as a screwdriver, the eccentric wheel 2 is rotated into the mounting space 16 through the top or bottom of the first member 10 to lock or unlock the eccentric wheel 2 to the connecting rod 4. Since it is not necessary to install the eccentric wheel 2 inside the first member 10 from the top or bottom of the first member 10, the hole in the first member 10 is used for a tool such as a screwdriver to pass through, improving the stealth of the eccentric wheel 2 in the first member 10.

[0030] In particular, in Embodiment 1 of the present invention, the shape and size of the mounting space 16 are not restricted. The mounting space 16 is designed according to the shape and size of the eccentric wheel 2, as long as the eccentric wheel 2 can rotate within the mounting space 16.

[0031] As shown in Figures 14 to 16, to attach the eccentric wheel 2 inside the first member 10 using the reinforcing member 1 according to Embodiment 1 of the present invention, first, a mounting channel 101 is provided on one side connecting the first member 10 and the second member 20. Specifically, it is made in the side wall of the first member 10 using drilling technology (e.g., a six-sided drill). The cross-sectional shape of the mounting channel 101 matches the cross-sectional shape of the reinforcing member 1, and the cross-sectional area of ​​the mounting channel 101 is equal to or slightly larger than the cross-sectional area of ​​the reinforcing member 1. As a result, when inserting the reinforcing member 1 into the mounting channel 101, the outer wall of the reinforcing member 1 and the inner wall of the mounting channel 101 fit together, almost fit together, or have a small gap. The reinforcing member 1 can be easily inserted into the mounting channel 101, or easily removed from the mounting channel 101. Furthermore, the drilled holes provide connecting holes 102 that connect to the mounting channel 101 at the top and bottom of the first member 10 (the diameter of the connecting holes 102 is used so that a tool such as a screwdriver can pass through). After inserting the reinforcing member 1 into the mounting channel 101, the mounting space 16 is connected to correspond to the connecting holes 102, allowing the eccentric wheel 2 to be rotated into the mounting space 16 by passing through the connecting holes 102 using a tool such as a screwdriver.

[0032] Furthermore, the mounting channel 101 is manufactured using drilled hole technology. The reinforcing member 1 is cylindrical or truncated in shape to conform to the cross-sectional shape of the mounting channel 101. That is, the reinforcing member 1 is circular along the line of sight from the connecting end 11 to the mounting end 12. This allows the reinforcing member 1 to be easily inserted into the mounting channel 101.

[0033] Because the sliding friction force between the reinforcing material 1 and the mounting channel 101 is small, the reinforcing material 1 is easily pulled out of the mounting channel 101. Therefore, after inserting the reinforcing material 1 into the mounting channel 101 of the first member 10, one end of the insert 3 is inserted into the connecting channel 13. When the insert 3 is switched from the loose position to the locked position, the insert 3 deforms and expands at least a portion of the elastic part 15 of the reinforcing material 1. As a result, the tightening projection 151 on the elastic part 15 is pressed against the inner wall of the mounting channel 101, the sliding friction force of the reinforcing material 1 in the mounting channel 101 increases, and the reinforcing material 1 becomes less likely to slide inside the mounting channel 101. Thus, the reinforcing material 1 is pressed inside the mounting channel 101. When removing the reinforcing material 1 from the first member 10, the insert 3 is switched to the loose position to return the elastic part 15 to its original state. By releasing the clamping effect between the tightening projection 151 on the elastic part 15 and the mounting channel 101, the reinforcing member 1 can slide freely within the mounting channel 101, and the reinforcing member 1 can be easily removed from the mounting channel 101. Such an operation is convenient and efficient. Furthermore, it avoids damage to the first member 10, ensures the integrity and aesthetics of the member, and facilitates the reuse of the member.

[0034] Furthermore, Embodiment 1 of the present invention does not restrict the outline of the insert 3. For example, the cross-sectional outline of the insert 3 may be circular, elliptical, or rounded. The cross-sectional shape of the connecting channel 13 only needs to match the outline of the insert 3. At the same time, by making the length of the connecting channel 13 greater than the length of the insert 3, the insert 3 can be fully inserted into the connecting channel 13, thereby enabling a stealthy connection of the first member 10 to the second member 20.

[0035] In Embodiment 1 of the present invention, the loose position is the position of the insert 3 when the elastic part 15 is not deformed. Specifically, this is the state in which the insert 3 is not inserted into the connecting channel 13, or the state in which a part of the insert 3 is inserted into the connecting channel 13. The locked position is the position of the insert 3 when the elastic part 15 is deformed. Specifically, this is the state in which the insert 3 is fully inserted into the connecting channel 13, or the state in which a part of the insert 3 is inserted into the connecting channel 13. When the insert 3 switches from the loose position to the locked position, the elastic part 15 gradually deforms, and the clamping effect between the tightening boss in the elastic part 15 and the inner wall of the connecting channel 13 gradually increases. When the insert 3 is fully inserted into the connecting channel 13, the clamping effect between the tightening boss in the elastic part 15 and the inner wall of the connecting channel 13 is at its maximum. At that time, the tightening effect of the reinforcing material 1 in the connecting channel 13 is at its best.

[0036] In Embodiment 1 of the present invention, to operate the insertion of insert 3 between a loosened position and a locked position, an external tool (e.g., a columnar body) is inserted into the insertion channel 31 and the insertion 3 is rotated into the connecting channel 13. This adjusts the position of insert 3 in the reinforcing member 1. In order to rotate the insertion 3 into the connecting channel 13 after the external tool (e.g., a columnar body) is inserted into the insertion channel 31, at least a portion of the cross-sectional shape of the insertion channel 31 is non-circular. For example, the cross-sectional shape of the portion of the insertion channel 31 near the opening is non-circular, and the cross-sectional shape of another portion of the insertion channel 31 is circular. For example, the cross-sectional shape of the entire insertion channel 31 is uniformly non-circular. Specifically, the external tool in Embodiment 1 of the present invention is a columnar body that conforms to the shape of the cross-sectional shape of the insertion channel 31, and after the external tool is inserted into the insertion channel 31, at least a portion of the external tool contacts the inner wall of the insertion channel 31, and the rotating columnar body can rotate the insertion 3 into the connecting channel 13.

[0037] In other implementations, to operate the insertion 3 between a loosened position and a locked position, for example, in Embodiment 1 of the present invention, an external tool (e.g., a columnar body) is used to translate the insertion 3 into the connecting channel 13, moving the insertion 3 from the loosened position to the locked position. An external tool (e.g., a hook-shaped body) is used to translate the insertion 3 into the connecting channel 13, moving the insertion 3 from the locked position to the loosened position. This adjusts the position of the insertion 3 in the reinforcing member 1.

[0038] As shown in Figures 1, 10, 26, and 29, at least a portion of the cross-section of the insertion channel 31 is the same as the cross-section of the inner ring of the sleeve. At that time, at least a portion of the insertion channel 31 is the sleeve structure of a socket wrench. Among these, socket wrenches are commonly used tools in this field. For example, manual socket wrenches of national standard GB T 3390.1-2004, or manual socket wrenches or electric wrenches of other national standards. The cross-section of the insertion channel 31 having a sleeve structure is non-circular and is not limited to triangular, square, hexagonal, octagonal, elliptical, rounded, or petal shapes. The shape of the cross-section of the external tool conforms to the shape of the cross-section of the insertion channel 31. Thereafter, after the external tool is inserted into the insertion channel 31, the insert 3 is rotated into the connecting channel 13 to adjust the position of the insert 3 within the connecting channel 13.

[0039] Furthermore, the present invention does not limit the number, position, shape, or size of the deformation gaps 14. There may be one or more deformation gaps 14. As shown in Figures 7, 17, 20, 25, and 28, when there are two deformation gaps 14, the two deformation gaps 14 are provided on the left and right sides of the connecting end 11. Elastic parts 15 are formed on the left and right sides of the connecting end 11 by the deformation gaps 14. When the first member 10 is a cabinet panel, the thickness of the first member 10 is small (usually 16 mm or more). After the mounting channel 101 is provided on the side wall of the first member 10, the thickness of the first member 10 in the vertical direction of the mounting channel 101 is thin. When the reinforcing material 1 slides into the mounting channel 101, the elastic parts 15 are provided in the longitudinal and width directions of the first member 10 so as not to damage the top or bottom of the first member 10, and the two elastic parts 15 are provided at intervals along the longitudinal and width directions of the first member 10. This ensures that the first member 10 is not damaged by the elastic part 15. In this invention, the left-right direction refers to the longitudinal direction and width direction along the first member 10 after the reinforcing member 1 is provided on the first member 10.

[0040] The shape of the deformation gap 14 may be V-shaped, U-shaped, or figure-seven shaped. The deformation gap 14 may be provided continuously or intermittently. A portion of the side wall of the connecting end 11 should deform through the deformation gap 14. That is, a portion of the connecting end 11 becomes the elastic portion 15 through the deformation gap 14.

[0041] The structure by which the insert 3 of the present invention deforms and expands the elastic portion 15 will be described in detail below.

[0042] As shown in Figures 1 to 9 and Figures 17 to 20, the first specific implementation method by which the insert 3 deforms and expands the elastic portion 15 is as follows: the inner wall of the elastic portion 15 and the inner wall of the connecting channel 13 together form a first female thread portion 17, and the outer peripheral side wall of the insert 3 has a first male thread portion 32 that connects in combination with the first female thread portion 17. Then, an external tool (e.g., a columnar body) is inserted into the insertion channel 31 and the insert 3 is rotated into the connecting channel 13. The rotation of the first male thread portion 32 and the first female thread portion 17 causes the insert 3 to slide inside the connecting channel 13. This inserts the insert 3 into the connecting channel 13. At the same time, when the insert 3 is inserted into the elastic portion 15 of the connecting channel 13, the outer peripheral wall of the insert 3 comes into contact with the elastic portion 15, deforming and expanding the elastic portion 15. As a result, the tightening boss of the elastic portion 15 is pressed against the inner wall of the mounting channel 101, and the reinforcing material 1 is pressed into the mounting channel 101. The specific processing method for the reinforcing member 1 is as follows: the connecting channel 13 is provided with a continuous female thread at the connecting end. A deformation gap 14 is provided in the side wall of the connecting end 11 to form an elastic portion 15. As a result, the female thread in the elastic portion 15 and the female thread in the connecting channel 13 together form a first female thread portion 17. The gear of the first female thread portion 17 may be a spur gear or a helical gear, and the first male thread portion 32 is a spur gear or a helical gear accordingly.

[0043] Furthermore, the first implementation described above does not restrict the structure of the connecting channel 13 at the connecting end 11. For example, along the direction from the connecting end 11 to the mounting end 12, the cross-sectional shape and area of ​​the connecting channel 13 in the elastic part 15 are the same (i.e., cylindrical). Alternatively, along the direction from the connecting end 11 to the mounting end 12, the cross-sectional area of ​​the connecting channel 13 in the elastic part 15 gradually decreases (i.e., truncated). Alternatively, along the direction from the connecting end 11 to the mounting end 12, the cross-sectional area of ​​the connecting channel 13 in the elastic part 15 gradually increases first, and then gradually decreases.

[0044] As shown in Figures 4, 7, 12, and 13, the shape and area of ​​the cross-section of the connecting channel 13 in the elastic portion 15 are the same along the direction from the connecting end 11 to the mounting end 12. The cross-sectional area of ​​the outer circumference of the outline of the tightening projection 151 is larger than the cross-sectional area of ​​the outer circumference of the outline of the mounting end 12. At that time, the insert 3 is a cylindrical structure with a first male thread portion 32 on its outer circumference wall. After the reinforcing material 1 is inserted into the mounting channel 101, the tightening projection 151 and the inner wall of the mounting channel 101 engage with each other, and the reinforcing material 1 generates some friction within the mounting channel 101, ensuring that the insert 3 spins into the connecting channel 13. At the same time, after the insert 3 contacts the elastic portion 15, it deforms the elastic portion 15. As a result, the tightening boss is pressed against the inner wall of the mounting channel 101, ensuring the tightening effect of the reinforcing material 1 in the mounting channel 101.

[0045] As shown in Figures 19 and 20, along the direction from the connecting end 11 to the mounting end 12, the inner wall of the elastic portion 15 gradually approaches the central axis 131 of the connecting channel. Similarly, the insert 3 is cylindrical with a first male threaded portion 32 on its outer circumferential wall. Of these, the cross-sectional area of ​​the outer circle of the outline of the tightening projection 151 is equal to the cross-sectional area of ​​the outer circle of the outline of the mounting end 12. Alternatively, the cross-sectional area of ​​the outer circle of the outline of the tightening projection 151 is greater than the cross-sectional area of ​​the outer circle of the outline of the mounting end 12. Preferably, the cross-sectional area of ​​the outer circle of the outline of the tightening projection 151 is equal to the cross-sectional area of ​​the outer circle of the outline of the mounting end 12. The insert 3 is cylindrical, and its cross-sectional area is greater than the cross-sectional area of ​​the inner wall of the elastic portion 15. Therefore, when the insert 3 moves to the elastic portion 15 in the connecting channel 13, the insert 3 comes into contact with the elastic portion 15 and undergoes a large deformation. As a result, the cross-sectional area of ​​the outer circumference of the outline of the tightening projection 151 is larger than the cross-sectional area of ​​the outer circumference of the outline of the mounting end 12. The tightening boss is then pressed against the inner wall of the mounting channel 101, ensuring the tightening effect of the reinforcing material 1 in the mounting channel 101.

[0046] Furthermore, in the first method of implementation described above, after the insert 3 is fully inserted into the connecting channel 13, the insert 3 can be rotated again to rotate the reinforcing member 1 into the mounting channel 101. This allows for fine adjustment of the position of the reinforcing member 1 within the mounting channel 101, improving the mounting accuracy of the reinforcing member 1 in the first member 10.

[0047] When it is necessary to remove the reinforcing member 1 from the first member 10, first, rotate the insert 3 in the reverse direction to completely remove the insert 3 from the connecting channel 13, and return the elastic part 15 to its original position. By releasing the clamping effect between the tightening projection 151 on the elastic part 15 and the mounting channel 101, the reinforcing member 1 can be easily pulled out from the mounting channel 101.

[0048] As shown in Figures 21 to 26, in a second specific implementation method in which the insert 3 deforms and expands the elastic portion 15, the inner wall of the connecting channel 13 is smooth, and a connecting ring 18 is provided on the inner wall of one end of the elastic portion 15 that is close to the mounting space 16. The outer circumference of the connecting ring 18 is provided at a distance from the inner circumference of the connecting channel 13. A second female threaded portion 181 is provided on the inner circumference of the connecting ring 18. The outer side wall of the insert 3 has a second male threaded portion 33 that connects in combination with the second female threaded portion 181. An external tool (e.g., a columnar body) is inserted into the insertion channel 31, and the insert 3 is slid into the connecting channel 13 by clearance fitting. When the insert 3 slides to the connecting ring 18, the insert 3 rotates relative to the connecting ring 18, and the rotation of the second male threaded portion 33 and the second female threaded portion 181 causes the insert 3 to slide into the connecting ring 18. Insert the insert 3 into the connecting channel 13. After the end of insert 3 contacts the step in the connecting channel 13, rotating insert 3 again deforms and expands the connecting ring 18 and the elastic part 15. As a result, the tightening boss of the elastic part 15 is pressed against the inner wall of the mounting channel 101, and the reinforcing material 1 is pressed into the mounting channel 101. The cross-sectional area of ​​the outer circumference of the outline of the tightening projection 151 is greater than or equal to the cross-sectional area of ​​the outer circumference of the outline of the mounting end 12.

[0049] When it is necessary to remove the reinforcing member 1 from the first member 10, first, the insert 3 is rotated in the reverse direction to remove the insert 3 from the connecting ring 18, and the elastic part 15 is returned to its original position. By releasing the clamping effect between the tightening projection 151 on the elastic part 15 and the mounting channel 101, the insert 3 slides completely out of the connecting channel 13, and the reinforcing member 1 can be easily pulled out of the mounting channel 101.

[0050] As shown in Figures 27 to 29, in a third specific implementation method in which the insert 3 deforms and expands the elastic portion 15, the inner wall of the connecting channel 13 is smooth. Along the direction from the connecting end 11 to the mounting end 12, the inner wall of one end of the elastic portion 15 that is close to the mounting space 16 gradually approaches the central axis 131 of the connecting channel. The outer peripheral wall of the insert 3 is smooth, and a release groove 34 is provided on the outer wall of one end of the insert 3. When inserting the insert 3 into the connecting channel 13, first, the release groove 34 is aligned with the elastic portion 15, and an external tool (e.g., a columnar body) is inserted into the insertion channel 31 to slide the insert 3 into the connecting channel 13 by gap fitting. When the release groove 34 slides to the elastic portion 15, the insert 3 is rotated by an angle (e.g., 90° or 80°) within the connecting channel 13, so that the arc-shaped outer wall of the insert 3 comes into contact with the elastic portion 15, deforming and expanding the elastic portion 15. As a result, the tightening boss of the elastic part 15 is pressed against the inner wall of the mounting channel 101, and the reinforcing material 1 is pressed into the mounting channel 101. Of these, the cross-sectional area of ​​the outer circumference of the outline of the tightening projection 151 is greater than or equal to the cross-sectional area of ​​the outer circumference of the outline of the mounting end 12.

[0051] When it is necessary to remove the reinforcing member 1 from the first member 10, first, the insert 3 is rotated in the opposite direction by a certain angle (for example, -90° or -80°) to align the release groove 34 with the elastic part 15 (the elastic part 15 is inserted into the release groove 34). This returns the elastic part 15 to its original position. By releasing the clamping effect between the tightening projection 151 on the elastic part 15 and the mounting channel 101, the insert 3 slides completely out of the connecting channel 13, and the reinforcing member 1 can be easily pulled out of the mounting channel 101.

[0052] In one embodiment, when the connecting assembly in Embodiment 1 of the present invention is used together with the connecting rod 4, the reinforcing member 1 and the eccentric wheel 2 are provided on the first member 10, a connecting boss 41 is formed protruding from one end of the connecting rod 4, and a mounting portion 42 is provided on the other end of the connecting rod 4. The connecting rod 4 is locked to the second member 20 through the mounting portion 42 (the mounting portion 42 is, for example, a male screw structure). An operating portion is fixedly provided between the connecting boss 41 and the mounting portion 42. There is a relative distance between the operating portion and the connecting boss 41 to form a connecting groove. The operating portion is used to rotate at least a portion of the connecting rod 4 by an external tool. The operating portion is made of plastic. The outer wall of the operating portion has at least one operating plane, operating hole, operating protrusion, operating groove, or a cross-section that matches the cross-section of the sleeve. The eccentric wheel 2 can rotate between a released position and a locked position. When the eccentric wheel 2 is in the released position, the connecting boss 41 is inserted into the eccentric groove 23 through the insertion channel 31. When the eccentric wheel 2 is in the locked position, the clamp arm 24 restricts the connecting boss 41 from being pulled out of the eccentric groove 23. The specific structure of the connecting rod 4 and the method of attaching the connecting rod 4 to the second member 20 in this embodiment are not described here and should be referred to in the first connector and its attachment method disclosed in "A Connector, Connecting Assembly and Connecting System" in Chinese Patent Publication No. CN114321115A.

[0053] As shown in Figures 11, 14 to 16, the connection assembly of Embodiment 1 of the present invention described above is provided on the first member 10 to form a connection system. Specifically, a mounting channel 101 is provided on one side of the first member 10, and connecting holes 102 communicating with the mounting channel 101 are provided on the upper and bottom of the first member 10. The reinforcing member 1 is inserted into the mounting channel 101, the mounting space 16 is connected to the connecting hole 102, and the eccentric wheel 2 is connected to the connecting hole 102. When the insert 3 is switched from the loose position to the locked position, the insert 3 deforms and expands at least a part of the elastic part 15. As a result, the tightening projection 151 is pressed against the inner wall of the mounting channel 101. After inserting the reinforcing member 1 into the mounting channel 101, one end of the insert 3 is inserted into the connecting channel 13, and when the insert 3 is switched from the loose position to the locked position, the insert 3 deforms and expands at least a part of the elastic part 15 of the reinforcing member 1. As a result, the clamping projection 151 on the elastic part 15 is pressed against the inner wall of the mounting channel 101, increasing the sliding friction force of the reinforcing material 1 in the mounting channel 101, making it difficult for the reinforcing material 1 to slide inside the mounting channel 101, and thus pressing the reinforcing material 1 inside the mounting channel 101. When removing the reinforcing material 1 from the first member 10, the insert 3 is switched to the loosened position to return the elastic part 15 to its original state. By releasing the clamping effect between the clamping projection 151 on the elastic part 15 and the mounting channel 101, the reinforcing material 1 can slide freely inside the mounting channel 101, and the reinforcing material 1 can be easily pulled out from the mounting channel 101. Such an operation is convenient and efficient. In addition, it avoids damage to the first member 10, ensures the integrity and aesthetics of the member, and facilitates the reuse of the member. [Examples]

[0054] As shown in Figures 30 to 33, Embodiment 2 of the present invention discloses a connecting assembly. It is similar in structure to the connecting assembly in Embodiment 1 of the present invention, but the difference is that the connecting assembly in Embodiment 2 does not include the insert 3. Furthermore, the outer peripheral side wall of the eccentric wheel 2' in Embodiment 2 is an eccentric arc surface, and the mounting space for the reinforcing member 1' of the connecting assembly has the structure of an eccentric hole 14'. The rotation of the eccentric wheel 2' within the eccentric hole 14' deforms and expands a portion of the reinforcing member 1', pressing the reinforcing member 1' into the first member 10.

[0055] Specifically, the connection assembly in Embodiment 2 of the present invention includes a reinforcing member 1' and an eccentric wheel 2'. The reinforcing member 1' is provided with opposing connection ends 11' and mounting ends 12'. The end of the connection end 11' has a connection channel 13', and the mounting end 12' has an eccentric hole 14' that connects to the connection channel 13'. The outer wall of the mounting end 12' has a deformed gap 15' that connects to the eccentric hole 14', and the outer wall of the mounting end 12' has a tightening projection 16'. The outer peripheral side wall of the eccentric wheel 2' is an eccentric arc surface, and the outer peripheral side wall of the eccentric wheel 2' fits into the inner peripheral side wall of the eccentric hole 14', and the eccentric wheel 2' is rotatably mounted in the eccentric hole 14'. The eccentric wheel 2' can rotate between a released position and a locked position. When switching the eccentric wheel 2' from the loosened position to the locked position, the eccentric wheel 2' deforms and expands a part of the side wall of the mounting end 12'.

[0056] As shown in Figures 30 to 33, the structure of the eccentric hole 14' in this embodiment 2 is such that the radius of a part of the inner wall of the eccentric wheel 2' gradually increases or decreases along the central axis. The shape of the outer peripheral side wall of the eccentric wheel 2' is the same as the shape of the eccentric hole 14'. As a result, when the eccentric wheel 2' is inserted into the eccentric hole 14' by clearance fitting and the eccentric wheel 2' is rotated by a certain angle, the part of the eccentric wheel 2' with a larger radius moves to the part of the eccentric hole 14' with a smaller radius, the outer wall of the eccentric wheel 2' comes into contact with the inner wall of the eccentric hole 14', and the eccentric wheel 2' can be expanded by deforming a part of the side wall of the mounting end 12'.

[0057] As shown in Figures 32 to 33, the loosening position in this invention is the position of the eccentric wheel 2' when the connecting boss 41' of the connecting rod 4' is inserted into the eccentric groove 23' of the eccentric wheel 2' through the connecting channel 13'. The locking position in this invention is the position of the eccentric wheel 2' that restricts the connecting boss 41' from being pulled out of the eccentric groove 23' of the eccentric wheel 2'.

[0058] During use, the eccentric wheel 2' is pre-installed on the reinforcing member 1' and is slid into the mounting channel 101 of the first member 10 by gap fitting. The eccentric hole 14' is then connected to the connecting hole 102 of the first member 10. Because the sliding friction force between the reinforcing member 1' and the mounting channel 101 is small, the reinforcing member 1' is easily pulled out of the mounting channel 101. Therefore, after the connecting boss 41' of the connecting rod 4' is inserted into the eccentric groove 23' of the eccentric wheel 2' through the connecting channel 13', the eccentric wheel 2' is switched from the loose position to the locked position, and the outer wall of the eccentric wheel 2' comes into contact with the inner wall of the eccentric hole 14', deforming and expanding the side wall of the mounting end 12'. As a result, the clamping projection 16' at the mounting end 12' is pressed against the inner wall of the mounting channel 101, increasing the sliding friction force of the reinforcing member 1' in the mounting channel 101, making it difficult for the reinforcing member 1' to slide inside the mounting channel 101, and thus pressing the reinforcing member 1' inside the mounting channel 101. When removing the reinforcing member 1' from the first member 10, the eccentric wheel 2' is switched to the loosened position to return the mounting end 12' to its original state. By releasing the clamping effect between the clamping projection 16' at the mounting end 12' and the mounting channel 101, the reinforcing member 1' can slide freely inside the mounting channel 101, and the reinforcing member 1' can be easily pulled out from the mounting channel 101. Such an operation is convenient and efficient. In addition, it avoids damage to the first member 10, ensures the integrity and aesthetics of the member, and facilitates the reuse of the member.

[0059] In one implementation, the reinforcing member 1' is circular in shape along the direction from the connecting end 11' to the mounting end 12'. The reinforcing member 1' is cylindrical or conical and fits into the mounting channel 101 made by drilling hole technology, which reduces the gap between the reinforcing member 1' and the inner wall of the mounting channel 101 and improves the stability of the reinforcing member 1' within the mounting channel 101.

[0060] In one implementation method, as shown in Figure 31, at least a portion of the connecting channel 13' rotates the reinforcing member 1' in cooperation with an external tool in order to adjust the position of the reinforcing member 1' in the mounting channel 101. The inner wall of the connecting channel 13' has at least one operating plane, operating protrusion, or operating groove, or the cross-section of at least a portion of the connecting channel 13' is the same as the cross-section of the inner ring of the sleeve. Specifically, after inserting an external tool (e.g., a columnar body) into the connecting channel 13', the reinforcing member 1' is rotated to some extent within the mounting channel 101. This adjusts the position of the mounting space to connect the eccentric ring 2' to the connecting hole 102 in the first member and ensures that a tool such as a screwdriver can pass through the connecting hole 102 and act on the eccentric ring 2'. Such an operation is convenient and efficient. Furthermore, it avoids the problem of the mounting space not corresponding to the connecting hole 102 and ensures the integrity and aesthetics of the first member 10. In order to rotate the reinforcing member 1' after an external tool (e.g., a columnar body) is inserted into the connecting channel 13', the shape of at least a portion of the cross-section of the connecting channel 13' is non-circular. For example, the cross-section of the portion of the connecting channel 13' near the opening is non-circular, while the cross-section of another portion of the connecting channel 13' is circular. For example, the shape of the cross-section of the entire connecting channel 13' is uniformly non-circular. Specifically, in Embodiment 2 of the present invention, the external tool is a columnar body that conforms to the shape of the cross-section of the connecting channel 13', and after the external tool is inserted into the connecting channel 13', at least a portion of the external tool contacts the inner wall of the connecting channel 13', and the rotating columnar body can rotate the reinforcing member 1' into the mounting channel 101. Specifically, the cross-section of at least a portion of the connecting channel 13' is the same as the cross-section of the inner ring of a sleeve. At that time, at least a portion of the connecting channel 13' is a socket wrench sleeve structure. Among these, a socket wrench is a tool commonly used in this field. For example, a manual socket wrench of national standard GB T 3390.1-2004, or a manual socket wrench or electric wrench of other national standards. The cross-section of the 13' connecting channel having a sleeve structure is non-circular and not limited to triangular, square, hexagonal, octagonal, elliptical, rounded, or petal shapes.The cross-sectional shape of the external tool conforms to the cross-sectional shape of the connecting channel 13'. Thereafter, after the external tool is inserted into the connecting channel 13', the reinforcing member 1' is rotated into the mounting channel 101.

[0061] As shown in Figure 34, the connection assembly of Embodiment 2 of the present invention described above is provided on the first member 10 to form a connection system. Specifically, a mounting channel 101 is provided on one side of the first member 10, and connecting holes 102 communicating with the mounting channel 101 are provided on the upper and bottom of the first member 10. The reinforcing member 1' is inserted into the mounting channel 101, the eccentric hole 14' is connected to the connecting hole 102, and the eccentric wheel 2' is connected to the connecting hole 102. When the eccentric wheel 2' is switched from the loose position to the locked position, the eccentric wheel 2' deforms and expands at least a part of the side wall of the mounting end 12'. As a result, the tightening projection 16' is pressed against the inner wall of the mounting channel 101. After the eccentric wheel 2' is pre-installed on the reinforcing member 1' and it is slid into the mounting channel 101 of the first member 10 by gap fitting, the eccentric wheel 2' is switched from the loose position to the locked position, and the outer wall of the eccentric wheel 2' comes into contact with the inner wall of the eccentric hole 14', deforming and expanding the side wall of the mounting end 12'. As a result, the tightening projection 16' on the mounting end 12' is pressed against the inner wall of the mounting channel 101, the sliding friction force of the reinforcing member 1' in the mounting channel 101 increases, making it difficult for the reinforcing member 1' to slide inside the mounting channel 101, and the reinforcing member 1' is pressed into the mounting channel 101. When removing the reinforcing member 1' from the first member 10, the eccentric wheel 2' is switched to the loose position and the mounting end 12' returns to its original state. By releasing the clamping effect between the tightening projection 16' at the mounting end 12' and the mounting channel 101, the reinforcing member 1' can slide freely within the mounting channel 101, and the reinforcing member 1' can be easily removed from the mounting channel 101. Such an operation is convenient and efficient. Furthermore, it avoids damage to the first member 10, ensures the integrity and aesthetics of the member, and facilitates the reuse of the member.

[0062] Furthermore, the other structures of the reinforcing material 1' in this embodiment 2 are the same as those of the reinforcing material 1 in embodiment 1 of the present invention, and therefore will not be described here.

[0063] In this document, terms such as "one embodiment," "several embodiments," "exemplary embodiment," "example," "specific example," and "several examples" mean that the specific features, structures, materials, or properties described in relation to that embodiment or example are included in that embodiment or example. In this document, the schematic representations of the aforementioned terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or properties described may be combined in an appropriate manner in any one or more embodiments or examples.

[0064] While embodiments of the present invention have been shown, peers may make various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and objectives of the present invention. The scope of the present invention is limited by the claims and their equivalents.

Claims

1. A connecting assembly comprising a reinforcing member, an eccentric wheel, and an insert, The reinforcing member is provided with opposing connecting ends and mounting ends, the end of the connecting end has a connecting channel, the side wall of the connecting end has at least one deformation gap, a part of the connecting end forms at least one elastic portion through the deformation gap, the outer wall of the elastic portion has a fastening projection, and the outer wall of the reinforcing member has a mounting space that connects to the connecting channel. The eccentric wheel is rotatably mounted within the mounting space. The insert has an insertion channel that runs through both ends, and one end of the insert is inserted into the connection channel from the connection end. At least a portion of the insertion channel is used in cooperation with an external tool to move the insert into the connection channel, or at least a portion of the insertion channel is used in cooperation with an external tool to rotate the insert into the connection channel. Of these, the inner wall of the insertion channel has at least one operating plane, operating protrusion, or operating groove, or at least a portion of the cross-section of the insertion channel is the same as the cross-section of the inner ring of the sleeve. The connection assembly is characterized in that the insert is switched between a loose position and a locked position, and when the insert is switched from the loose position to the locked position, the insert deforms and expands at least a part of the elastic portion.

2. The connection assembly according to claim 1, comprising two deformation gaps, each of which is provided on the left and right sides of the connection end, and characterized in that the elastic portion is formed on the left and right sides of the connection end by the deformation gaps.

3. The connection assembly according to claim 1, characterized in that the reinforcing member is circular along the line of sight from the connection end to the mounting end.

4. The connection assembly according to claim 1, characterized in that both the inner wall of the elastic portion and the inner wall of the connection channel form a first female thread portion, and the outer peripheral side wall of the insert has a first male thread portion that connects in combination with the first female thread portion.

5. The connection assembly according to claim 4, characterized in that, along the line of sight from the connection end to the mounting end, the shape and area of ​​the cross-section of the connection channel in the elastic portion are the same, and the cross-sectional area of ​​the outer circumference of the outline of the fastening projection is greater than the cross-sectional area of ​​the outer circumference of the outline of the mounting end.

6. The connection assembly according to claim 4, characterized in that the inner wall of the elastic portion gradually approaches the central axis of the connection channel along the line of sight from the connection end to the mounting end.

7. The connection assembly according to claim 1, characterized in that the inner wall of the connection channel is smooth, a connection ring is provided on the inner wall of one end of the elastic portion near the mounting space, the outer circumference of the connection ring is provided at a distance from the inner circumference of the connection channel, a second female thread is provided on the inner circumference of the connection ring, and the outer circumference side wall of the insert has a second male thread that connects in combination with the second female thread.

8. The inner wall of the connecting channel is smooth, and along the direction from the connecting end toward the mounting end, the inner wall of one end of the elastic portion closest to the mounting space gradually approaches the central axis of the connecting channel. The connection assembly according to claim 1, characterized in that the outer peripheral wall of the insert is smooth, and a release groove is provided on the outer wall of one end of the insert.

9. The device includes a connecting rod, the connecting rod having a connecting boss protruding from one end, the connecting rod having a mounting portion at the other end, an operating portion fixedly provided between the connecting boss and the mounting portion, a relative distance between the operating portion and the connecting boss for forming a connecting groove, the operating portion being used to rotate at least a portion of the connecting rod by an external tool, the operating portion being made of plastic, and having at least one operating plane, operating hole, operating protrusion, or operating groove on its outer wall, or having a cross-section that matches the cross-section of the sleeve, The eccentric wheel has an eccentric groove, and a clamp arm is provided on at least one inner wall of the eccentric groove, and the eccentric wheel can rotate between a released position and a locked position. The connection assembly according to claim 1, wherein when the eccentric wheel is in the released position, the connecting boss is inserted into the eccentric groove through the insertion channel, and when the eccentric wheel is in the locked position, the clamp arm restricts the connecting boss from being pulled out of the eccentric groove.

10. The assembly comprises a first member and a connecting assembly according to any one of claims 1 to 9. A mounting channel is provided on one side of the first member, and connecting holes communicating with the mounting channel are provided on the upper and bottom of the first member, the reinforcing member is inserted into the mounting channel, the mounting space is connected to the connecting hole, and the eccentric wheel is connected to the connecting hole. A connection system characterized in that when the insert is switched from the loosened position to the locked position, the insert deforms and expands at least a portion of the elastic part, thereby pressing the tightening projection against the inner wall of the mounting channel.

11. A connecting assembly comprising a reinforcing member and an eccentric wheel, The reinforcing member is provided with opposing connecting ends and mounting ends, the end of the connecting end has a connecting channel, the mounting end has an eccentric hole that connects to the connecting channel, the outer wall of the mounting end has a deformed gap that connects to the eccentric hole, and the outer wall of the mounting end has a fastening projection. The outer circumferential side wall of the eccentric wheel is an eccentric curved surface, and the outer circumferential side wall of the eccentric wheel fits into the inner circumferential side wall of the eccentric hole, and the eccentric wheel is rotatably mounted inside the eccentric hole. The connection assembly is characterized in that the eccentric wheel can rotate between a released position and a locked position, and when the eccentric wheel is switched from the released position to the locked position, the eccentric wheel deforms and expands a part of the side wall of the mounting end.

12. The connection assembly according to claim 11, characterized in that the reinforcing member is circular along the line of sight from the connection end to the mounting end.

13. At least a portion of the connecting channel rotates the reinforcing member in cooperation with an external tool. The connection assembly according to claim 11, characterized in that the inner wall of the connection channel has at least one operating plane, operating protrusion, or operating groove, or the cross-section of at least a portion of the connection channel is the same as the cross-section of the inner ring of the sleeve.

14. The first member and the connecting assembly described in any one of claims 11 to 13, A mounting channel is provided on one side of the first member, and connecting holes communicating with the mounting channel are provided on the upper and bottom of the first member, the reinforcing member is inserted into the mounting channel, the eccentric hole is connected to the connecting hole, and the eccentric wheel is connected to the connecting hole. A connection system characterized in that when the eccentric wheel is switched from the released position to the locked position, the eccentric wheel deforms and expands at least a portion of the side wall of the mounting end, thereby pressing the tightening projection against the inner wall of the mounting channel.

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