A first connection, a connection assembly and a connection system

Abstract

The utility model provides a first connecting piece, connecting assembly and connecting system for connecting first component and second component, first connecting piece includes first connecting piece body, still be equipped with the limit boss between the connecting boss of one end of first connecting piece body and the mounting portion of other end, and operating part and positioning part are fixedly arranged in the side of limit boss near connecting boss, positioning part is arranged intervally with operating part, limit boss is arranged intervally with positioning part, and positioning part and operating part are oppositely arranged intervally to form at least one material saving area, wherein, positioning part and operating part are used to limit first connecting piece body in the longitudinal deviation and / or deformation in the mounting channel or sleeve, in addition, when positioning part and connecting boss are oppositely arranged intervally, positioning part is used to guide sleeve and mounting channel to be sleeved on operating part. The utility model discloses first connecting piece, and the production cost is low, and the resource utilization rate is improved.

Description

Technical Field

[0001] This utility model relates to a first connector, a connecting assembly, and a connecting system for connecting a first component and a second component, particularly for connecting furniture components. Background Technology

[0002] Currently, with the continuous improvement of people's aesthetic awareness, invisible connectors are gradually being used to achieve invisible connections between two furniture panels or two metal components, thereby improving the aesthetics of furniture or equipment. Among them, invisible connectors such as two-in-one connectors, three-in-one connectors, or four-in-one connectors are widely used in the connection between two furniture panels.

[0003] like Figures 1-3 As shown, the existing three-in-one connector mainly consists of a pre-embedded nut 10, a connecting rod 20, and an eccentric wheel 30. In use, the pre-embedded nut 10 is pre-embedded in the first mounting hole 61' of the first component 6', and the eccentric wheel 30 is installed in the second mounting hole 71' of the second component 7'. The first end of the connecting rod 20 is firmly connected to the first component 6' through the pre-embedded nut 10, which serves as a reinforcement. The second end of the connecting rod 20 is inserted into the mounting channel inside the second component 7' and firmly connected to the eccentric wheel 30, thereby enabling the first component 6' and the second component 7' to achieve a concealed connection through the three-in-one connector. At the same time, the three-in-one connector is highly detachable, and the first component 6' and the second component 7' can be disassembled and assembled multiple times.

[0004] The connecting rod 20 has a protrusion 40 in its middle section. This protrusion 40 is positioned within the mounting channel 72' of the second component 7'. The protrusion 40 controls the connecting rod 20, reducing or completely preventing longitudinal displacement within the mounting channel 72' and minimizing the risk of tilting, bending, or other deformation. This improves the relative stability between the connecting rod 20 and the second component 7', reducing the difficulty of aligning and locking the connecting rod 20 with the eccentric wheel 30. After the eccentric wheel 30 and the connecting rod 20 are locked together, the first component 6' and the second component 7' are firmly connected. The first component 6' and the second component 7' cannot move relative to each other in either the longitudinal or lateral directions, or only within a very small space, resulting in a stable assembled furniture structure and higher overall quality. (See reference...) Figure 1 To ensure good control within the installation channel 72', the existing connecting rod 20 generally has a relatively long protrusion 40, resulting in a high material consumption. Existing two-in-one and four-in-one connectors have the same problem, which will not be elaborated upon here.

[0005] For example, the connecting component disclosed in patent CN216867192U, entitled "A First Connector, Connecting Assembly and Connecting System", takes the two-in-one connecting component as an example. The two-in-one connecting component includes a first connector and a second connector. The first connector is provided with an operating part. In use, a sleeve (external tool) can be sleeved on the outside of the operating part to control the rotation of the first connector, thereby locking one end of the first connector into the first mounting hole of the first component. Then, the other end of the first connector is inserted into the second mounting hole of the second component, while the operating part is placed in the mounting channel of the second component. The operating part has a control effect on the first connector, and then the second connector locks the first connector. Therefore, it can be seen that the operating part of the first connector is not only used for control within the installation channel, but also for cooperating with the sleeve. It is understandable that if the stability between the sleeve and the operating part is poor after the sleeve is fitted onto the operating part, the sleeve is prone to tilting or swaying relative to the operating part, which will increase the difficulty of installing the first connector. Especially when the sleeve is driven by an electric screwdriver, even a slight oscillation between the sleeve and the operating part under high-speed rotation will affect the installation of the first connector and the first component, reducing the installation quality of the first connector. Therefore, in order to achieve better results, as can be seen from the attached figure of the patent document, the length of the operating part is generally relatively long, and it may also be necessary to provide a reinforcing part to ensure that the first connector remains stable within the installation channel. Based on this, there is a problem of high material consumption for the first connector. In addition, during the process of fitting the sleeve onto the operating part, when the operating part is located relatively far from the connecting boss, the sleeve needs to pass through the connecting boss, the connecting groove, and even part of the first connecting member body. Without a guide, it is quite difficult for the sleeve to be quickly fitted into the operating part. The existing technology can make a relatively long guide at the front end of the operating part to guide the sleeve into the operating part as an alternative solution. However, it also has the problem of large material consumption of the first connecting member.

[0006] Similarly, during the process of fitting the connecting channel of the second component onto the operating part, when the operating part is located relatively far from the connecting boss, the installation channel needs to pass through the connecting boss, the connecting groove, and even part of the first connecting member body. Without a guide, it is quite difficult for the installation channel to be quickly fitted into the operating part. The existing technology can make a relatively long guide at the front end of the operating part to guide the installation channel into the operating part as an alternative solution. However, it also has the problem of large material consumption of the first connecting member.

[0007] Both the three-in-one and four-in-one connection components have the same problems mentioned above, which will not be elaborated here.

[0008] In summary, the existing concealed connectors, based on the design of the positioning part or the operating part, have the problem of high material consumption for the connecting rod 20 (the first connector), which leads to high production costs for the connecting rod and waste of resources. Utility Model Content

[0009] To address the high production cost of connecting rods in existing two-in-one, three-in-one, or four-in-one connectors, this utility model provides a first connector, comprising a first connector body. One end of the first connector body has a protruding connecting boss, and the other end has a mounting portion for locking into a first mounting hole in a first component. The first connector body also has a limiting boss between the connecting boss and the mounting portion. An operating portion and a positioning portion are fixedly provided on the side of the limiting boss near the connecting boss. The positioning portion and the operating portion are spaced apart, the limiting boss and the positioning portion are spaced apart, and the connecting boss and the positioning portion or the operating portion are spaced apart to form a connecting groove.

[0010] The connecting boss and the connecting groove are used to be inserted into the slot of the second connector, which is rotatable in a rotational direction between the release position and the locking position, through the mounting channel opened in the side wall of the second component. The connecting boss is used to be restricted from being pulled out of the slot by the clamping arm of the second connector. Alternatively, at least a portion of the connecting groove is used to pass through the mounting channel opened in the side wall of the second component to be inserted into the position where the connecting channel opened in the outer side wall of the third connector communicates with the connecting hole opened in the top of the third connector, and one end of the threaded fastener connected in the connecting hole is inserted into the connecting groove.

[0011] The operating part is used to be driven by an external tool, including a sleeve, to rotate at least a portion of the first connecting body; when the external tool is a sleeve, the longitudinal section of the operating part is adapted to the longitudinal section of the sleeve.

[0012] When the positioning part and the connecting boss are arranged at a distance from each other, the positioning part is used to allow the mounting channel to pass through so as to guide the mounting channel to fit onto the operating part;

[0013] When the positioning part and the operating part are disposed in the mounting channel of the second component, the positioning part and the operating part are used to limit the longitudinal displacement and / or deformation of the first connector body in the mounting channel;

[0014] When the external tool is a sleeve and the positioning part and the connecting boss are spaced apart from each other, the positioning part is used for the sleeve to pass through to guide the sleeve to be fitted onto the operating part;

[0015] When the positioning part and the operating part are located inside the sleeve, the positioning part and the operating part are used to limit the longitudinal displacement and / or deformation of the first connector body inside the sleeve.

[0016] Based on the first technical solution described above, the advantages of the first connector of this utility model compared with the prior art are as follows:

[0017] The first connector body has a fixedly spaced positioning part and an operating part between the connecting boss and the mounting part. When the user controls the rotation of the first connector body using a sleeve, both the operating part and the positioning part are located inside the sleeve. The operating part can cooperate with the sleeve to form a first control position, and the positioning part can cooperate with the sleeve to form a second control position. The existence of the control positions prevents the first connector body from longitudinally shifting relative to the sleeve, or even within a very small space. Furthermore, the positioning effect of at least two spaced control positions significantly reduces the risk of deformation of the first connector body relative to the sleeve, providing strong stability between the sleeve and the operating part. This ensures that the first connector body can be fixed to the first component at a preset angle, improving the installation quality of the first connector. Additionally, during the process of fitting the sleeve onto the operating part, when the operating part is located relatively far from the connecting boss, the sleeve needs to pass through the connecting boss, the connecting groove, and even part of the first connector body. The guiding effect of the positioning part allows the sleeve to be fitted onto the operating part more quickly, improving installation efficiency.

[0018] When one end of the first connector is inserted into the mounting channel of the second component, both the operating part and the positioning part are located within the mounting channel. The side wall of the positioning part cooperates with the inner wall of the mounting channel to form a third control position, and the side wall of the operating part cooperates with the wall of the mounting channel to form a fourth control position. With the positioning effect of at least two spaced control positions, the first connector can remain stable within the mounting channel, significantly reducing the risk of longitudinal displacement and / or deformation of the first connector body within the mounting channel. Similarly, during the process of fitting the connecting channel of the second component onto the operating part, when the operating part is located relatively far from the connecting boss, the mounting channel needs to pass through the connecting boss, the connecting groove, and even part of the first connector body. The guiding effect of the positioning part allows the mounting channel to fit into the operating part more quickly, improving installation efficiency.

[0019] The first connector of this utility model achieves multi-point positioning through the cooperation of the positioning part and the operating part. This not only improves the efficiency of the insertion and fitting of the first connector body with the sleeve and the installation channel, but also ensures a stable fit between the first connector body and the sleeve and the installation channel. Furthermore, based on the design of this utility model, the total material consumption of the positioning part and the operating part on the first connector is much less than the material consumption of the protrusion (or operating part) of the existing connecting rod. Thus, it not only reduces the production cost of the first connector, but also facilitates the production of more first connectors with limited resources, thereby improving resource utilization and enhancing economic benefits.

[0020] In some embodiments, the longitudinal section of the positioning part is circular.

[0021] In some embodiments, when the positioning part and the connecting boss are spaced apart from each other, the diameter of the positioning part is smaller than the diameter of the circumcircle of the operating part.

[0022] In some embodiments, the positioning part and the mounting part are spaced apart.

[0023] In some embodiments, the longitudinal section of the positioning part is the same as the longitudinal section of the operating part.

[0024] In some embodiments, at least a portion of the first connector body, the connecting boss, the positioning part, the operating part, and the mounting part are integral metal parts.

[0025] In some embodiments, the positioning part is cold-forged onto the first connector body.

[0026] In some embodiments, the operating part is cold-forged onto the first connector body.

[0027] In some embodiments, at least two positioning portions are provided, and the at least two positioning portions are spaced apart on the first connector body.

[0028] In some embodiments, the connecting boss, the connecting groove, the positioning part, the operating part, and the limiting boss are cold-forged onto the first connector body.

[0029] In some embodiments, the limiting boss is integrally connected to or is an integral part of the operating part or the positioning part.

[0030] In some embodiments, the outer periphery of the operating part is provided with at least one arcuate surface.

[0031] In some embodiments, the lengths of both the positioning part and the operating part are not less than 0.5 mm.

[0032] In some embodiments, the lengths of both the positioning part and the operating part do not exceed 8 mm.

[0033] In some embodiments, the lengths of both the positioning part and the operating part do not exceed 4 mm.

[0034] The second aspect of this utility model also provides a first connector, including a first connector body, one end of the first connector body protruding to form a connecting boss, and the other end of the first connector body having a mounting portion for locking in a first mounting hole of a first component. The first connector body has a driving external thread portion fixedly provided between the connecting boss and the mounting portion, and the driving external thread portion is engaged with an operating portion with an internal thread. The first connector body has a positioning portion fixedly provided between the operating portion and the connecting boss, the positioning portion and the operating portion being spaced apart, and the positioning portion and the connecting boss being spaced apart to form a connecting groove.

[0035] The connecting boss and the connecting groove are used to be inserted into the slot of the second connector, which is rotatable in a rotational direction between the release position and the locking position, through the mounting channel opened in the side wall of the second component. The connecting boss is used to be restricted from being pulled out of the slot by the clamping arm of the second connector. Alternatively, at least a portion of the connecting groove is used to pass through the mounting channel opened in the side wall of the second component to be inserted into the position where the connecting channel opened in the outer side wall of the third connector communicates with the connecting hole opened in the top of the third connector, and one end of the threaded fastener connected in the connecting hole is inserted into the connecting groove.

[0036] The operating part is used to be driven by an external tool, including a sleeve, to rotate at least a portion of the first connector body; when the external tool is a sleeve, the longitudinal section of the operating part is adapted to the longitudinal section of the sleeve.

[0037] When the external tool is a sleeve, the positioning part is used to allow the sleeve to pass through and guide the sleeve to be fitted onto the operating part;

[0038] When the external tool is a sleeve, and the positioning part and the operating part are located inside the sleeve, the positioning part and the operating part restrict the longitudinal displacement and / or deformation of the first connector body inside the sleeve; the mounting part includes a second expansion body, and the outer side wall of the second expansion body is provided with at least one second fastening boss; wherein, when the operating part is driven by the sleeve to achieve rotation, at least one second fastening boss expands radially outward along the second expansion body, thereby causing at least one second fastening boss to engage with the inner side wall of the first mounting hole of the first member;

[0039] The positioning part is used to allow the installation channel to pass through so as to guide the installation channel to fit onto the operating part;

[0040] When the positioning part and the operating part are disposed within the mounting channel of the second member, the positioning part and the operating part are used to limit the longitudinal offset and / or deformation of the first connector body within the mounting channel.

[0041] Based on the second technical solution described above, the advantages of the first connector of this utility model compared with the prior art are as follows:

[0042] The first connector requires less material and has a lower production cost. It also allows for the production of more first connectors with limited resources, improving resource utilization and thus enhancing economic efficiency. Furthermore, the short length of the operating part on the first connector reduces the difficulty of machining the internal thread, which helps improve the yield rate of the operating part and reduce unnecessary costs.

[0043] In some embodiments, the longitudinal section of the positioning part is circular.

[0044] In some embodiments, the diameter of the positioning part is smaller than the diameter of the circumcircle of the operating part.

[0045] In some embodiments, the positioning part and the mounting part are spaced apart.

[0046] In some embodiments, the longitudinal section of the positioning part is the same as the longitudinal section of the operating part.

[0047] The third aspect of this utility model also provides a connecting component, including a second connector for mounting on a second member with a second mounting hole and a first connector as described in the first or second aspect.

[0048] The second connector is rotatable in a rotational direction between a release position and a locked position; a slot is provided on the side wall of the second connector, and at least one inner side wall of the slot is provided with a clamping arm; when the second connector is in the release position, the connecting boss and the connecting groove are used to be inserted into the slot through the mounting channel of the second member and from the opening of the slot; when the second connector is in the locked position, the clamping arm restricts the connecting boss from being pulled out of the slot.

[0049] The fourth aspect of this utility model also provides a connection system, including a first component, a second component, and the connection components involved in the third aspect;

[0050] The first component has a first mounting hole, the mounting part is inserted into the first mounting hole, and the mounting part is engaged with the inner wall of the first mounting hole;

[0051] The second component has a second mounting hole at its bottom and a mounting channel communicating with the second mounting hole on its side wall. The second connector is rotatably disposed in the second mounting hole. When the second connector is in the released position, the connecting boss and the connecting groove are inserted into the slot of the second connector through the mounting channel. The positioning part and the operating part are inserted into the mounting channel to limit the longitudinal displacement and / or deformation of the first connector body within the mounting channel. When the second connector is in the locked position, the clamping arm restricts the connecting boss from being pulled out of the slot.

[0052] In some embodiments, when the positioning part and the connecting boss are arranged at intervals relative to each other, the installation channel includes a first-level sub-channel and a second-level sub-channel that are interconnected. The longitudinal cross-sectional area of ​​the first-level sub-channel is adapted to the longitudinal cross-sectional area of ​​the positioning part, and the longitudinal cross-sectional area of ​​the second-level sub-channel is adapted to the longitudinal cross-sectional area of ​​the operating part.

[0053] In some embodiments, when the positioning part and the connecting boss are arranged at intervals relative to each other, one end of the sleeve is provided with a fitting channel. The fitting channel includes a third-level sub-channel and a fourth-level sub-channel that are interconnected. The longitudinal cross-sectional area of ​​the third-level sub-channel is adapted to the longitudinal cross-sectional area of ​​the positioning part, and the longitudinal cross-sectional area of ​​the fourth-level sub-channel is adapted to the longitudinal cross-sectional area of ​​the operating part.

[0054] The fifth aspect of this utility model also provides a connecting assembly, including a third connector for insertion onto a second member, a threaded fastener, and the first connector involved in the first or second aspect.

[0055] A connecting channel is provided on the outer side wall of the third connector, and a connecting hole communicating with the connecting channel is provided on the top of the third connector. At least a portion of the connecting groove is inserted into the position where the connecting channel communicates with the connecting hole. The threaded fastener is threadedly connected to the connecting hole, and one end of the threaded fastener is inserted into the connecting groove.

[0056] The sixth aspect of this utility model also provides a connection system, including a first component, a second component, and the connection components involved in the fifth aspect;

[0057] The first component has a first mounting hole, the mounting part is inserted into the first mounting hole, and the mounting part is engaged with the inner wall of the first mounting hole;

[0058] The second component has a second mounting hole at its bottom and a mounting channel communicating with the second mounting hole on its side wall. The third connector is inserted into the second mounting hole and the connecting channel communicates with the mounting channel. At least a portion of the connecting groove passes through the mounting channel and is inserted at the position where the connecting channel communicates with the connecting hole. The positioning part and the operating part are inserted into the mounting channel to limit the longitudinal displacement and / or deformation of the first connector body within the mounting channel. The threaded fastener is threaded into the connecting hole, and one end of the threaded fastener is inserted into the connecting groove.

[0059] In some embodiments, when the positioning part and the connecting boss are arranged at intervals relative to each other, the installation channel includes a first-level sub-channel and a second-level sub-channel that are interconnected. The longitudinal cross-sectional area of ​​the first-level sub-channel is adapted to the longitudinal cross-sectional area of ​​the positioning part, and the longitudinal cross-sectional area of ​​the second-level sub-channel is adapted to the longitudinal cross-sectional area of ​​the operating part.

[0060] In some embodiments, when the positioning part and the connecting boss are arranged at intervals relative to each other, one end of the sleeve is provided with a fitting channel. The fitting channel includes a third-level sub-channel and a fourth-level sub-channel that are interconnected. The longitudinal cross-sectional area of ​​the third-level sub-channel is adapted to the longitudinal cross-sectional area of ​​the positioning part, and the longitudinal cross-sectional area of ​​the fourth-level sub-channel is adapted to the longitudinal cross-sectional area of ​​the operating part. Attached Figure Description

[0061] Figure 1 This is a structural diagram of a three-in-one connector in the prior art;

[0062] Figure 2 This is a schematic diagram showing the disassembled components of the first component, the second component, and the three-in-one connector in the prior art;

[0063] Figure 3 This is a cross-sectional view of the first and second components connected using existing three-in-one connectors in the prior art;

[0064] Figure 4 This is a schematic diagram of the first structure of the first connector in Embodiment 1 of this utility model;

[0065] Figure 5 This is a schematic diagram of the second structure of the first connector in Embodiment 1 of this utility model;

[0066] Figure 6 This is a schematic diagram of the third structure of the first connector in Embodiment 1 of this utility model;

[0067] Figure 7 This is a schematic diagram of the fourth structure of the first connector in Embodiment 1 of this utility model;

[0068] Figure 8 This is a schematic diagram of the fifth structure of the first connecting member in Embodiment 1 of this utility model;

[0069] Figure 9 This is a schematic diagram of the sixth structure of the first connecting member in Embodiment 1 of this utility model;

[0070] Figure 10 This is a schematic diagram of the seventh structure of the first connecting member in Embodiment 1 of this utility model;

[0071] Figure 11 yes Figure 10 A schematic diagram of the decomposition process;

[0072] Figure 12 This is an eighth structural schematic diagram of the first connecting member in Embodiment 1 of this utility model;

[0073] Figure 13 This is a schematic diagram of the ninth structure of the first connecting member in Embodiment 1 of this utility model.

[0074] Figure 14 This is a schematic diagram of the tenth structure of the first connecting member in Embodiment 1 of this utility model;

[0075] Figure 15 This is a schematic diagram of the eleventh structure of the first connecting member in Embodiment 1 of this utility model;

[0076] Figure 16 This is a schematic diagram of the sleeve structure according to Embodiment 1 of this utility model;

[0077] Figure 17 This is a schematic diagram of the structure of the first connecting member and the sleeve in Embodiment 1 of this utility model;

[0078] Figure 18 This is a cross-sectional schematic diagram of the first structure of the sleeve according to Embodiment 1 of this utility model;

[0079] Figure 19 This is a cross-sectional schematic diagram of the second structure of the sleeve according to Embodiment 1 of this utility model;

[0080] Figure 20 This is a schematic diagram of the structure of the second connecting member in Embodiment 1 of this utility model;

[0081] Figure 21 This is a schematic diagram of the structure of the connecting component in Embodiment 1 of this utility model;

[0082] Figure 22 This is an exploded view of the connection system according to Embodiment 1 of this utility model;

[0083] Figure 23This is a cross-sectional schematic diagram of the connection system according to Embodiment 1 of this utility model;

[0084] Figure 24 This is a cross-sectional schematic diagram of the second component of Embodiment 1 of this utility model;

[0085] Figure 25 This is a schematic diagram of the structure of the first connecting member in Embodiment 2 of this utility model;

[0086] Figure 26 This is an exploded view of the first connecting member in Embodiment 2 of this utility model;

[0087] Figure 27 This is an exploded view of the connection system according to Embodiment 2 of this utility model;

[0088] Figure 28 This is a cross-sectional schematic diagram of the connection system according to Embodiment 2 of this utility model;

[0089] Figure 29 This is an exploded view of the third connector and threaded fastener in Embodiment 3 of this utility model;

[0090] Figure 30 This is a schematic diagram of the first structure of the first connecting member in Embodiment 3 of this utility model;

[0091] Figure 31 This is a schematic diagram of the second structure of the first connector in Embodiment 3 of this utility model;

[0092] Figure 32 This is a schematic diagram of the connection component according to Embodiment 3 of this utility model;

[0093] Figure 33 This is an exploded view of the connection system according to Embodiment 3 of this utility model;

[0094] Figure 34 This is a cross-sectional schematic diagram of the connection system according to Embodiment 3 of this utility model.

[0095] Figure label:

[0096] 1. First connector; 2. Second connector; 3. Third connector; 4. Threaded fastener; 5. Sleeve; 6. First component; 7. Second component;

[0097] 1a. First raw material section; 1b. Second raw material section; 1c. Third raw material section; 1d. Fourth raw material section; 11. Connecting boss; 111. Drive unit; 12. Mounting unit; 121. First rotating unit; 122. Second rotating unit; 123. First expansion body; 124. Second expansion body; 125. Second fastening boss; 13. Operating unit; 131. Arc surface; 15. Positioning unit; 16. Connecting groove; 17. Limiting boss; 18. External threaded part; 19. Reinforcing part;

[0098] 21. Slot; 22. Clamping arm;

[0099] 31. Connecting channel; 32. Connecting hole;

[0100] 51. Set channel; 511. Third-level sub-channel; 512. Fourth-level sub-channel;

[0101] 61. First mounting hole;

[0102] 71. Second mounting hole; 72. Mounting channel; 721. First-level sub-channel; 722. Second-level sub-channel. Detailed Implementation

[0103] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0104] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0105] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0106] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0107] In existing technologies, such as Figures 1-3 As shown, the three-in-one connector consists of a pre-embedded nut 10, a connecting rod 20, and an eccentric wheel 30, mainly used to achieve an invisible connection between two furniture panels. One furniture panel is designated as the first component 6, and the other as the second component 7'. The first component 6' and the second component 7' can have the same or different shapes or materials. The shape can be, for example, a plate-like, block-like, or columnar form, and the material can be wood, plastic, metal, or a polymer synthetic material, or a combination thereof; no limitation is made here.

[0108] When using the existing three-in-one connector, the pre-embedded nut 10 is pre-embedded in the first mounting hole 61' of the first component 6', the eccentric wheel 30 is installed in the second mounting hole 71' of the second component 7', the first end of the connecting rod 20 is firmly connected to the first component 6' through the pre-embedded nut 10, which serves as a reinforcement, and the second end of the connecting rod 20 is inserted into the mounting channel inside the second component 7' and firmly connected to the eccentric wheel 30. Thus, the first component 6' and the second component 7' are implicitly connected through the three-in-one connector. At the same time, the three-in-one connector is highly detachable, and the first component 6' and the second component 7' can be disassembled and assembled through multiple disassembly and assembly.

[0109] The connecting rod 20 has a protrusion 40 in its middle section. This protrusion 40 is positioned within the mounting channel 72 of the second component 7'. The protrusion 40 controls the connecting rod 20, reducing or completely preventing longitudinal displacement within the mounting channel 72, and lowering the risk of tilting, bending, or other deformations. This improves the relative stability between the connecting rod 20 and the second component 7', thereby reducing the difficulty of aligning and locking the connecting rod 20 with the eccentric wheel 30. After the eccentric wheel 30 and the connecting rod 20 are locked together, the first component 6' and the second component 7' are firmly connected. The first component 6' and the second component 7' cannot move relative to each other in either the longitudinal or lateral directions, or only within a very small space, resulting in a stable assembled furniture structure and higher overall quality. (See reference...) Figure 1To ensure good control within the installation channel 72, the existing connecting rod 20 has a relatively long protrusion 40. This results in a high material consumption for the connecting rod 20, leading to high production costs and resource waste. Existing two-in-one and four-in-one connectors suffer from the same problem, which will not be elaborated upon here.

[0110] Furthermore, the aforementioned protrusions 40 are generally made of metal or plastic. Because plastic is less expensive, the number of connecting rods 20 with protrusions 40 made of plastic is far greater than the number with protrusions 40 made of metal. However, compared with protrusions 40 made of metal, protrusions 40 made of plastic are not only weaker, but also generate a large amount of waste gas when the plastic is burned during the recycling of waste connecting rods 20, which can easily cause environmental pollution. Moreover, during the production of connecting rods 20, the metal part needs to be formed and then transferred to a plastic coating equipment to coat the metal part with plastic, which increases the production steps and thus affects production efficiency.

[0111] Example 1

[0112] To address the problems existing in existing two-in-one and three-in-one connectors, this utility model provides a connector assembly, such as... Figures 4-24 As shown, the connecting assembly includes a first connector 1 and a second connector 2. In use, the first end of the first connector 1 is firmly connected to the first component 6, and the second end of the first connector 1 passes through the mounting channel 72 of the second component 7 and is inserted into the second mounting hole 71 of the second component 7, where it is firmly connected to the second connector 2. Thus, the first component 6 and the second component 7 are connected through the cooperation of the first connector 1 and the second connector 2. Unlike existing technologies, the first connector 1 of this invention requires less material, resulting in lower production costs. Furthermore, it allows for the production of more first connectors 1 using limited resources, improving resource utilization.

[0113] The specific structure of the first connector 1 in this embodiment will be further described below.

[0114] The first connector 1 of this utility model includes a first connector body. One end of the first connector body protrudes to form a connecting boss 11, and the other end of the first connector body is provided with a mounting part 12. The mounting part 12 is used to lock into the first mounting hole 61 of the first component 6. The first connector body is also provided with a limiting boss 17 between the connecting boss 11 and the mounting part 12. The first connector body is fixedly provided with an operating part 13 and a positioning part 15 on the side of the limiting boss 17 near the connecting boss 11. The positioning part 15 and the operating part 13 are spaced apart, and the limiting boss 17 and the positioning part 15 are spaced apart. The operating part 13 forms a positioning section, and the connecting boss 11 is arranged at a distance from the positioning section to form a connecting groove 16. It can be understood that the operating part 15 can be provided on the side of the positioning part 15 close to the connecting boss 11. In this case, the connecting groove 16 is formed between the connecting boss 11 and the operating part 15. Alternatively, the operating part 13 can also be provided on the side of the positioning part 15 away from the connecting boss 11. In this case, the connecting groove 16 is formed between the connecting boss 11 and the positioning part 15, that is, the positioning part 15 and the connecting boss 11 are arranged at a distance from each other. There is at least one operating part 13 and one positioning part 15. The number is not limited here.

[0115] The operating part 13 is driven by an external tool, including the sleeve 5, to rotate at least a portion of the first connecting body; when the external tool is the sleeve 5, the longitudinal section of the operating part 13 is adapted to the longitudinal section of the sleeve 5.

[0116] When the positioning part 15 and the connecting boss 11 are arranged at intervals relative to each other, the positioning part 15 is used to allow the installation channel 72 to pass through so as to guide the installation channel 72 to fit into the operating part 13; the guiding effect of the positioning part 15 enables the installation channel 72 to fit into the operating part 13 more quickly, thereby improving the installation efficiency.

[0117] When the external tool is a sleeve 5 and the positioning part 15 and the connecting boss 11 are arranged at intervals relative to each other, the positioning part 15 is used to allow the sleeve 5 to pass through and guide the sleeve 5 to be fitted onto the operating part 13. The guiding effect of the positioning part 15 enables the sleeve 5 to be fitted onto the operating part 13 more quickly, thus improving the installation efficiency.

[0118] When the positioning part 15 and the operating part 13 are used in the mounting channel 72 of the second member 7, the positioning part 15 and the operating part 13 are used to limit the longitudinal displacement and / or deformation of the first connector body in the mounting channel 72.

[0119] When the positioning part 15 and the operating part 13 are located inside the sleeve 5, the positioning part 15 and the operating part 13 restrict the first connector body from shifting and / or deforming longitudinally within the sleeve 5.

[0120] Based on the above scheme, when the user uses the sleeve 5 to control the rotation of the first connector body, the operating part 13 and the positioning part 15 are both located inside the sleeve 5. The operating part 13 can cooperate with the sleeve 5 to form the first control position, and the positioning part 15 can cooperate with the sleeve 5 to form the second control position. The existence of the control position can prevent the first connector body from or from undergoing longitudinal displacement relative to the sleeve 5 in a very small space. Under the positioning effect of at least two control positions set at intervals, the risk of deformation of the first connector body relative to the sleeve 5 (i.e., the first connector body tilting relative to the sleeve 5 or the part of the first connector body inserted into the sleeve 5 bending, etc.) can be greatly reduced, so that the sleeve 5 and the operating part 13 have strong stability, ensuring that the first connector body can be fixed on the first component 6 at a preset angle, thereby improving the installation quality of the first connector 1.

[0121] When the connecting boss 11 and connecting groove 16 of the first connector 1 are inserted into the second mounting hole 71 of the second component 7, the positioning part 15 and the operating part 13 are both located in the mounting channel 72. At this time, the positioning part 15 can cooperate with the wall of the mounting channel 72 to form a third control position, and the operating part 13 can cooperate with the wall of the mounting channel 72 to form a fourth control position. The existence of the control position can prevent the body of the first connector from or from shifting longitudinally relative to the second component in a very small space. Under the positioning effect of at least two control positions set at intervals, the risk of deformation of the body of the first connector relative to the second component can be greatly reduced. In this way, it is not only convenient for the second connector 2 and the first connector 1 to lock together quickly and accurately, but also after the second connector 2 and the first connector 1 are locked together, the first component 6 and the second component 7 are firmly connected. The first component 6 and the second component 7 cannot move relative to each other in the longitudinal and transverse directions or in a very small space, so that the assembled furniture has a stable structure and higher overall quality.

[0122] As can be seen, the first connector 1 of this utility model achieves multi-point positioning through the cooperation of the positioning part 15 and the operating part 13. This not only improves the efficiency of the insertion and cooperation between the first connector body and the sleeve 5 and the installation channel 72, but also ensures a stable cooperation between the first connector body and the sleeve 5 and the installation channel 72. Furthermore, based on the design of this utility model, the total material consumption of the positioning part 15 and the operating part 13 on the first connector 1 is much less than that of the protrusion 40 (or operating part) of the existing connecting rod 20 or the material consumption of adding plastic to the first connector body. In this way, not only is the production cost of the first connector 1 reduced, but it is also beneficial to use limited resources to produce more first connectors 1, thereby improving the utilization rate of resources and thus improving economic benefits.

[0123] It should be understood that the socket 5 involved in this utility model is a commonly used tool in the field, such as a manual socket wrench according to national standard GBT3390.1-2004, or other national standard manual socket wrenches or electric wrenches. The longitudinal section of the socket 5 is non-circular, including but not limited to triangular, square, hexagonal, octagonal, elliptical, oval, petal-shaped, or gear-shaped, etc. This patent does not limit the outer peripheral wall of the cylindrical structure of the socket 5 to be continuous, nor does it limit the shape of the cylindrical structure of the socket 5 to be non-deformable; as long as it can be fitted onto the operating part 13 and drive the operating part 13 to rotate at least a part of the first connecting member 1.

[0124] The longitudinal section of the positioning part 15 can be of any shape, only needing to limit the longitudinal displacement of the first connecting member body within the sleeve 5 or the mounting channel 72 and to provide guidance when the positioning part 15 and the connecting boss 11 are spaced apart, without interfering with the fit between the sleeve 5 and the operating part 13. For example: the longitudinal section of the positioning part 15 is circular, and the positioning part 15 is located on the side of the operating part closer to the connecting boss 11, and the diameter of the positioning part 15 can be smaller than the diameter of the circumscribed circle of the operating part 13; or, the longitudinal section of the positioning part 15 is circular, and the positioning part 15 is located on the side of the operating part 13 away from the connecting boss 11, and the diameter of the positioning part 15 can be no smaller than the diameter of the inscribed circle of the operating part 13; or, the longitudinal section of the positioning part is the same as the longitudinal section of the operating part. Alternatively, the internal diameter of the sleeve 5 can also be graded, and the diameters of the positioning part 15 and the operating part 13 can be set according to the graded inner diameters of the sleeve 5.

[0125] The connecting boss 11 is usually circular, and the diameter of the connecting boss 11 is smaller than the diameter of the positioning part 15 or the diameter of the outer circle of the positioning part 15, so as to ensure that the sleeve 5 can be fitted onto the positioning part 15 and the operating part 13.

[0126] In some embodiments, the positioning part 15 and the mounting part 12 are spaced apart.

[0127] Based on the design of this utility model, the material cost difference between the first connector 1, which is made of plastic to form the positioning part 15 and the operating part 13, and the first connector 1, which is made of metal, is reduced. Furthermore, since the first connector 1, which is made of metal to form the positioning part 15 and the operating part 13, can be directly formed on a cold heading machine, the production efficiency of the first connector 1, which is made of metal body, is higher than that of the other plastic injection molding method for forming the positioning part 15 and the operating part 13. Therefore, at least a portion of the first connector body, connecting boss 11, positioning part 15, operating part 13, and mounting part 12 is a single metal component, such as an iron, zinc alloy, or stainless steel component. This design enables the first connector 1 to have higher strength and extend its service life. Moreover, when the first connector 1 is discarded and recycled, the all-metal first connector 1 or the first connector 1 with the non-metallic material (part of the mounting part 12) removed will not produce harmful exhaust gas under high temperature combustion, thus avoiding environmental pollution and making it more environmentally friendly.

[0128] In some embodiments, the positioning part 15 and the operating part 13 of the first connector 1 can both be cold-forged in a cold forging machine, which not only has high forming efficiency but also a high yield.

[0129] In some embodiments, except for the external threads of the mounting portion 12 which require thread rolling to form, all other parts of the first connector body are cold-forged using a cold heading machine. That is, the connecting boss 11, connecting groove 16, positioning portion 15, operating portion 13, and limiting boss 17 are cold-forged onto the first connector body. This method not only saves the material required for the first connector body but also significantly reduces processing costs and improves processing efficiency. In some embodiments, except for the external threads of the mounting portion which require thread rolling to form, all other parts of the first connector body can even be cold-forged in a single cold heading machine, further saving processing costs and improving processing efficiency. It should be noted that this patent does not exclude the use of thread rolling and cold heading as processing methods for any part of the first connector body.

[0130] In some embodiments, the connection between the mounting portion 12 and the first component 6 of this utility model includes the following two methods: the first method is that the mounting portion 12 includes a first rotating portion 121, such as... Figures 4-9As shown, in use, the first rotating part 121 is directly placed in the first mounting hole 61 of the first component 6. After the first rotating part 121 rotates synchronously with the body of the first connector, it interlocks with the inner wall of the first mounting hole 61. In this design, the first rotating part 121, the body of the first connector, the connecting boss 11, the positioning part 15, and the operating part 13 can be a single metal piece; the second type is that the mounting part 12 includes a first expansion body 123 and a second rotating part 122, as shown. Figures 10-13 As shown, the second rotating part 122 is located inside the first expanding body 123 and rotates relative to the first expanding body 123. In use, the first expanding body 123 is positioned within the first mounting hole 61 of the first component 6. The second rotating part 122 rotates synchronously with the first connecting body, causing the outer peripheral wall of the first expanding body 123 to expand, so that the first fastening boss on the first expanding body 123 interlocks with the inner wall of the first mounting hole 61. In this design, the second rotating part 122, the first connecting body, the connecting boss 11, the positioning part 15, and the operating part 13 can be a single metal component. The first expanding body 123 is detachably mounted on the second rotating part 122. The first expanding body 123 can be made of metal or plastic. During recycling, if the first expanding body 123 and the first connecting body are made of different metal materials, or if the first expanding body 123 is made of plastic, the first expanding body 123 can be removed and processed separately.

[0131] In some embodiments, when the mounting part 12 includes a first rotating part 121, the longitudinal cross-sectional area of ​​the limiting boss 17 is larger than the longitudinal cross-sectional area of ​​the first mounting hole 61. The limiting boss 17 is used to abut against the surface of the first component 6 to prevent the first rotating part 121 from being over-inserted, thereby achieving the purpose of installation positioning and improving assembly accuracy and convenience. When the mounting part 12 includes a second rotating part 122 and a first expansion body 123, the longitudinal cross-sectional area of ​​the limiting boss 17 is larger than the longitudinal cross-sectional area of ​​the inner hole of the first expansion body 123. The limiting boss 17 is used to abut against the surface of the first expansion body 123 to prevent the second rotating part 122 from being over-inserted, thereby achieving the purpose of installation positioning and improving assembly accuracy and convenience.

[0132] In some embodiments, the operating part 13 is integrally connected to the limiting boss 17. This design can improve the strength of the operating part 13 and reduce the risk of deformation of the operating part 13. On the other hand, during the cold heading process, the absence of a gap between the operating part 13 and the limiting boss 17 facilitates product forming and demolding, reduces the processing difficulty of the first connector 1, and improves the processing efficiency and yield of the first connector 1.

[0133] In some embodiments, the operating part 13 and the limiting boss 17 are integrated, that is, at least a portion of the longitudinal cross-sectional area of ​​the operating part is larger than the longitudinal cross-sectional area of ​​the first mounting hole 61 to form the limiting boss 17, or the longitudinal cross-sectional area of ​​the operating part 13 is larger than the longitudinal cross-sectional area of ​​the inner hole of the first expansion body 123 to form the limiting boss 17, so as to achieve the purpose of installation and positioning, save processing steps, and improve the processing efficiency and yield of the first connector 1.

[0134] In some embodiments, the limiting boss 17 and the operating part 13 are integrally connected; the limiting boss 17 and the operating part 13 are formed simultaneously during cold heading; thus, the processing cycle of the first connector 1 can be shortened, the production efficiency of the first connector 1 can be improved, and the number of pressing operations required for the cold heading equipment to produce one first connector 1 can be reduced. Therefore, compared with the production of existing connectors, the cold heading equipment has less wear and tear and lower maintenance and repair costs when producing the same number of the first connectors 1 of this utility model, which can indirectly reduce the production cost of the first connector 1.

[0135] In some embodiments, a reinforcing part 19 is fixedly provided on the body of the first connector, and the operating part 13 can be connected to the reinforcing part 19. By adding the reinforcing part 19, the overall strength of the first connector 1 can be improved. The reinforcing part 19 can be provided on the side of the operating part 13 closer to the connecting boss 11, or it can be provided on the side of the operating part 13 away from the connecting boss 11. Figure 5 and Figure 31 As shown, when the reinforcing part 19 is located on the side of the operating part 13 closer to the connecting boss 11, the reinforcing part 19 can act as a guide, allowing the sleeve 5 to be fitted into the operating part 13 more quickly, further improving installation efficiency. The reinforcing part 19 can be cylindrical, and the diameter of the longitudinal section of the reinforcing part 19 can be equal to the diameter of the inscribed circle of the operating part 13, or the diameter of the longitudinal section of the reinforcing part 19 can be smaller than the diameter of the inscribed circle of the operating part 13.

[0136] In some embodiments, the positioning part 15 is provided with at least two, such as Figure 6At least two positioning portions 15 are spaced apart on the body of the first connector, and at least two positioning portions 15 are distributed on one side of the operating portion 13 or on both sides of the operating portion 13; a connecting groove 16 is formed between the connecting boss 11 and the positioning portion 15 near the connecting boss 11. Each positioning portion 15 can cooperate with the sleeve 5 or the wall surface of the mounting channel 72 to form a control position. The increase of control positions can further improve the stability between the first connector 1 and the sleeve 5 or the stability of the first connector 1 within the mounting channel 72. In addition, when at least two positioning portions 15 are distributed on the side of the operating portion 13 near the connecting boss 11, the at least two positioning portions 15 provide better guidance for the sleeve 5 and the mounting channel 72 to fit into the operating portion 13. The number of positioning portions 15 can be adjusted according to the usage of the first connector 1. Preferably, the operating portion 13 and the at least two positioning portions 15 are equally spaced.

[0137] In some embodiments, the connecting boss 11 is provided with a driving part 111, such as Figure 5 and Figure 8 As shown, the drive unit 111 is driven by an external tool to rotate at least a portion of the first connector body. The drive unit 111 can be a slot, cross-shaped slot, or hexagonal slot formed on the connecting boss 11, and the corresponding external tool is a flathead screwdriver, a cross-shaped screwdriver, or a hex wrench. Alternatively, the external tool can be a sleeve 5, and the drive unit 111 can be a plane or groove formed on the side end of the connecting boss 11 so that the longitudinal section of the connecting boss 11 matches the longitudinal section of the sleeve 5. The drive unit 111 can also adopt other structures, which are not limited here.

[0138] In some embodiments, the outer periphery of the operating part 13 is provided with at least one arc surface 131; the mounting channel 72 of the second component 7 is generally a circular channel drilled by a drilling machine. When the operating part 13 is placed in the second-level sub-channel 722, at least one arc surface 131 can fit and conform to the wall of the mounting channel 72, thereby increasing the contact area between the operating part 13 and the wall of the mounting channel 72, improving the positioning effect of the non-circular operating part 13, so that the assembled furniture product has higher structural strength and better connection stability between components; in addition, appropriately adding an arc surface 131 to the operating part 13 can make the operating part 13 less difficult to cold heading; furthermore, appropriately adding an arc surface 131 to the operating part 13 can also avoid stress concentration, thereby extending the service life of the operating part 13 and improving economic efficiency.

[0139] In some embodiments, to save material for the first connector body, or to allow the positioning part 15 and the operating part 13 to be cold-forged in one step, the lengths of both the positioning part 15 and the operating part 13 do not exceed 8 mm; while to ensure better positioning or guiding function of the positioning part 15 and the operating part 13, or to ensure sufficient strength of the positioning part 15 and the operating part 13 and reduce the risk of bending or breakage, the lengths of both the positioning part 15 and the operating part 13 are not less than 0.5 mm. The length of the operating part 13 can be 2 mm, 3 mm, 4 mm, 5 mm, 8 mm, etc., and the length of the positioning part 15 can be 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc. Preferably, the length of the positioning part 15 can be less than the length of the operating part 13, thereby saving material.

[0140] In some embodiments, the lengths of the positioning part 15 and the operating part 13 do not exceed 4 mm. It is understood that both the positioning part 15 and the operating part 13 in this invention can be formed by cold heading in a single step. Therefore, when the lengths of the positioning part 15 and the operating part 13 are small, the difficulty of cold heading the positioning part 15 and the operating part 13 is relatively low. Thus, the smaller lengths of the positioning part 15 and the operating part 13 not only save materials but also reduce processing difficulty.

[0141] For the specific design of other structures of the first connector 1 involved in this embodiment, please refer to the utility model patent with publication number CN216867192U and patent name "A First Connector, Connecting Component and Connecting System", which will not be elaborated here.

[0142] Based on the structure of the first connector 1 in Embodiment 1 of this utility model described above, the specific structure of the second connector 2, which is connected to the first connector 1 in Embodiment 1, will be further described below, such as... Figures 20-21 As shown:

[0143] The second connector 2 is rotatable in a rotational direction between the release position and the locked position; a slot 21 is provided on the side wall of the second connector 2, and at least one inner side wall of the slot 21 is provided with a clamping arm 22; when the second connector 2 is in the release position, the connecting boss 11 and the connecting groove 16 are used to be inserted into the slot 21 through the mounting channel 72 of the second component 7 and from the opening of the slot 21; when the second connector 2 is in the locked position, the clamping arm 22 restricts the connecting boss 11 from being pulled out of the slot 21. The specific design of the second connector 2 can be referred to the utility model patent with publication number CN216867192U and patent name "A First Connector, Connecting Assembly and Connecting System", which will not be described in detail here.

[0144] Based on the structure of the connecting component in Embodiment 1 of this utility model, an implicit connection between the first component 6 and the second component 7 can be achieved through the connecting component in Embodiment 1 of this utility model to form a connecting system, such as... Figures 22-24 As shown, the connection system includes a first component 6, a second component 7, a first connector 1, and a second connector 2. The first component 6 has a first mounting hole 61, and a mounting part 12 is inserted into the first mounting hole 61, with the mounting part 12 engaging with the inner sidewall of the first mounting hole 61. The second component 7 has a second mounting hole 71 at its bottom, and a mounting channel 72 communicating with the second mounting hole 71 is formed on the sidewall of the second component 7. The second connector 2 is rotatably disposed in the second mounting hole 71. When the second connector 2 is in the released position, the connecting boss 11 and the connecting groove 16 are inserted into the slot 21 of the second connector 2 through the mounting channel 72, and the positioning part 15 and the operating part 13 are both disposed in the mounting channel 72 to limit the longitudinal displacement and / or deformation of the first connector body within the mounting channel 72. When the second connector 2 is in the locked position, the clamping arm 22 prevents the connecting boss 11 from being pulled out of the slot 21, thereby connecting the first component 6 and the second component 7 through the first connector 1 and the second connector 2.

[0145] In some embodiments, the installation channel 72 may include a first-level sub-channel 721 and a second-level sub-channel 722 that are interconnected, as shown in the reference. Figure 24 The longitudinal cross-sectional area of ​​the first-level sub-channel 721 is adapted to the longitudinal cross-sectional area of ​​the positioning part 15, and the longitudinal cross-sectional area of ​​the second-level sub-channel 722 is adapted to the longitudinal cross-sectional area of ​​the operating part 13. In this way, the first connector 1 and the installation channel 72 can be more adapted, thereby making the first connector 1 more capable of bearing the load of the second component 7, thereby improving the connection between the first component 6 and the second component 7.

[0146] In some embodiments, when the positioning part 15 and the connecting boss 11 are arranged at intervals relative to each other, one end of the sleeve 5 is provided with a fitting channel 51. The fitting channel 51 may include a third-level sub-channel 511 and a fourth-level sub-channel 512 that are interconnected. (Refer to...) Figures 16-19 The longitudinal cross-sectional area of ​​the third-level sub-channel 511 is adapted to the longitudinal cross-sectional area of ​​the positioning part 15, and the longitudinal cross-sectional area of ​​the fourth-level sub-channel 512 is adapted to the longitudinal cross-sectional area of ​​the operating part 13. This design allows the positioning part 15 to have more structural feasibility and meet different usage requirements.

[0147] Example 2

[0148] To address the problems existing in existing two-in-one and three-in-one connectors, this utility model provides a connector assembly, such as... Figures 25-28As shown, the connecting assembly includes a first connector 1 and a second connector 2. In use, the first end of the first connector 1 is firmly connected to the first component 6, and the second end of the first connector 1 passes through the mounting channel 72 of the second component 7 and is inserted into the second mounting hole 71 of the second component 7, where it is firmly connected to the second connector 2. Thus, the first component 6 and the second component 7 are connected through the cooperation of the first connector 1 and the second connector 2. Unlike existing technologies, the first connector 1 of this invention requires less material, resulting in lower production costs. Furthermore, it allows for the production of more first connectors 1 using limited resources, improving resource utilization.

[0149] The specific structure of the first connector 1 in this embodiment will be further described below.

[0150] The first connector 1 of this utility model includes a first connector body. One end of the first connector body protrudes to form a connecting boss 11, and the other end of the first connector body is provided with a mounting part 12. The mounting part 12 is used to lock in the first mounting hole 61 of the first component 6. The first connector body is fixedly provided with a driving external thread part 18 between the connecting boss 11 and the mounting part 12. The driving external thread part 18 is connected to an operating part 13 with an internal thread. The first connector body is fixedly provided with a positioning part 15 between the operating part 13 and the connecting boss 11. The positioning part 15 and the operating part 13 are arranged at a distance from each other. The positioning part 15 and the connecting boss 11 are arranged at a distance from each other to form a connecting groove 16.

[0151] The operating part 13 is driven by an external tool, including the sleeve 5, to rotate at least a portion of the first connecting body; when the external tool is the sleeve 5, the longitudinal section of the operating part 13 is adapted to the longitudinal section of the sleeve 5.

[0152] When the external tool is a sleeve 5, the positioning part 15 is used to allow the sleeve 5 to pass through and guide the sleeve 5 to be fitted onto the operating part 13; the guiding function of the positioning part 15 enables the installation channel 72 to be fitted into the operating part 13 more quickly, thus improving the installation efficiency.

[0153] When the external tool is a sleeve 5, and the positioning part 15 and the operating part 13 are located inside the sleeve 5, the positioning part 15 and the operating part 13 restrict the first connector body from longitudinally offset and / or deformed inside the sleeve 5; the mounting part 12 includes a second expansion body 124, and the outer side wall of the second expansion body 124 is provided with at least one second fastening boss 125; wherein, when the operating part 13 is driven by the sleeve 5 to achieve rotation, at least one second fastening boss 125 expands outward along the radial direction of the second expansion body 124, thereby causing at least one second fastening boss 125 to engage with the inner side wall of the first mounting hole 61 of the first member 6;

[0154] The positioning part 15 is used to allow the installation channel 72 to pass through so as to guide the installation channel 72 to be fitted onto the operating part 13;

[0155] The positioning part 15 and the operating part 13 are provided in the mounting channel 72 of the second component 7 to limit the longitudinal displacement and / or deformation of the first connector body in the mounting channel 72.

[0156] The design of the first connector 1 in this second embodiment has similar effects to that of the first connector 1 in the first embodiment. Both can improve the efficiency of the insertion and mating of the first connector body with the sleeve 5 and the mounting channel 72, and can maintain a stable fit between the first connector body and the sleeve 5 and the mounting channel 72, while reducing material consumption. However, the difference is that the operating part 13 on the first connector 1 in the second embodiment needs to be machined with internal threads. The longer the operating part 13 is, the more difficult it is to machine the internal threads, and the more likely the operating part 13 is to become a defective product. Based on the design of this utility model, the length of the operating part 13 can be shortened, the machining difficulty of the operating part 13 can be reduced, the yield rate of the operating part 13 can be improved, and unnecessary costs can be reduced.

[0157] In some embodiments, the longitudinal section of the positioning part 15 is circular, and the positioning part 15 is located on the side of the operating part 13 near the connecting boss 11. The diameter of the positioning part 15 may be smaller than the diameter of the outer circle of the operating part 13. Alternatively, the longitudinal section of the positioning part 15 is circular, and the positioning part 15 is located on the side of the operating part 13 away from the connecting boss 11. The diameter of the positioning part 15 may be not smaller than the diameter of the inner circle of the operating part 13. Alternatively, the longitudinal section of the positioning part is the same as the longitudinal section of the operating part.

[0158] Furthermore, the connecting boss 11 is usually circular, and the diameter of the connecting boss 11 is smaller than the diameter of the positioning part 15 or the diameter of the outer circle of the positioning part 15, so as to ensure that the sleeve 5 can be fitted onto the positioning part 15 and the operating part 13.

[0159] The specific design of other structures of the first connector 1 involved in this embodiment 2 can be found in the utility model patent with publication number CN216867192U and patent name "A First Connector, Connecting Component and Connecting System", which will not be elaborated here.

[0160] Example 3

[0161] To address the problems existing in current four-in-one connectors, this utility model, in its third embodiment, provides a connecting component, such as... Figures 29-34As shown, the connecting assembly includes a third connector 3, a threaded fastener 4, and a first connector 1 as described in Embodiment 1 or Embodiment 2. A connecting channel 31 is provided on the outer wall of the third connector 3, and a connecting hole 32 communicating with the connecting channel 31 is provided on the top of the third connector 3. At least a portion of the connecting groove 16 is inserted into the position where the connecting channel 31 communicates with the connecting hole 32. The threaded fastener 4 is threadedly connected to the connecting hole 32, and one end of the threaded fastener 4 is inserted into the connecting groove 16. For the specific design of the third connector 3 and the threaded fastener 4, please refer to the utility model patent with publication number CN216867192U and patent name "A First Connector, Connecting Assembly and Connecting System," which will not be elaborated upon here.

[0162] Based on the structure of the connecting component in Embodiment 3 of this utility model, an implicit connection between the first component 6 and the second component 7 can be achieved through the connecting component in Embodiment 3 of this utility model to form a connecting system, such as... Figures 33-34 As shown, the connection system includes a first component 6, a second component 7, a first connector 1, a third connector 3, and a threaded fastener 4. The first component 6 has a first mounting hole 61, into which a mounting part 12 is inserted and engages with the inner wall of the first mounting hole 61. The second component 7 has a second mounting hole 71 at its bottom, and a mounting channel 72 communicating with the second mounting hole 71 is formed on its side wall. The third connector 3 is inserted into the second mounting hole 71, connecting the connecting channel 31 to the mounting channel 72. At least a portion of the connecting groove 16 passes through the mounting channel 72 and is inserted at the position where the connecting channel 31 communicates with the connecting hole 32. A positioning part 15 and an operating part 13 are both located within the mounting channel 72 to limit longitudinal displacement and / or deformation of the first connector body within the mounting channel 72. The threaded fastener 4 is threaded into the connecting hole 32, with one end of the threaded fastener 4 inserted into the connecting groove 16, thereby achieving an invisible connection between the first component 6 and the second component 7 via the first connector 1 and the second connector 2.

[0163] In some embodiments, the mounting channel 72 may include a first-level sub-channel 721 and a second-level sub-channel 722 that are interconnected. The longitudinal cross-sectional area of ​​the first-level sub-channel 721 is adapted to the longitudinal cross-sectional area of ​​the positioning part 15, and the longitudinal cross-sectional area of ​​the second-level sub-channel 722 is adapted to the longitudinal cross-sectional area of ​​the operating part 13. In this way, the first connector 1 can be better adapted to the mounting channel 72, thereby increasing the load-bearing capacity of the first connector 1 on the second component 7 and improving the connection strength between the first component 6 and the second component 7.

[0164] In some embodiments, when the positioning part 15 and the connecting boss 11 are arranged at intervals relative to each other, one end of the sleeve 5 is provided with a fitting channel 51. The fitting channel 51 may include a third-level sub-channel 511 and a fourth-level sub-channel 512 that are interconnected. The longitudinal cross-sectional area of ​​the third-level sub-channel 511 is adapted to the longitudinal cross-sectional area of ​​the positioning part 15, and the longitudinal cross-sectional area of ​​the fourth-level sub-channel 512 is adapted to the longitudinal cross-sectional area of ​​the operating part 13. This design makes the positioning part 15 more structurally feasible and meets different usage requirements.

[0165] The above description is only a preferred embodiment of the present utility model, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A first connection member characterized by comprising: The first connecting member body has a connecting boss at one end and a mounting portion at the other end, the mounting portion is used to be locked in the first mounting hole of the first component, the first connecting member body is further provided with a limiting boss between the connecting boss and the mounting portion, the first connecting member body is fixedly provided with an operating portion and a positioning portion on the side of the limiting boss close to the connecting boss; the positioning portion is spaced apart from the operating portion, the limiting boss is spaced apart from the positioning portion, and the connecting boss is spaced apart from the positioning portion or the operating portion to form a connecting groove; The connecting boss and the connecting groove are used to be inserted into the insertion groove of the second connecting member which can rotate in the rotating direction between the release position and the locking position through the mounting channel of the second component side wall and the second mounting hole opened at the bottom of the second component, the connecting boss is used to be limited to pull out from the insertion groove by the clamping arm of the second connecting member; or at least part of the connecting groove is used to be inserted into the connecting channel of the third connecting member outer side wall and the connecting hole of the third connecting member top which are communicated through the mounting channel of the second component side wall and the second mounting hole opened at the bottom portion of the second component, and the end of the threaded fastener connected in the connecting hole is inserted into the connecting groove; The operating portion is used to be driven by an external tool including a sleeve to drive at least part of the first connecting member body to rotate; when the external tool is a sleeve, the longitudinal section of the operating portion is adapted to the longitudinal section of the sleeve; When the positioning portion and the connecting boss are spaced apart relative to each other, the positioning portion is used for the mounting channel to pass through to guide the mounting channel to be sleeved on the operating portion; When the positioning portion and the operating portion are used in the mounting channel of the second component, the positioning portion and the operating portion are used to limit the longitudinal deviation and / or deformation of the first connecting member body in the mounting channel; When the external tool is a sleeve and the positioning portion and the connecting boss are spaced apart relative to each other, the positioning portion is for the sleeve to pass through to guide the sleeve to be sleeved on the operating portion; When the positioning portion and the operating portion are located in the sleeve, the positioning portion and the operating portion are used to limit the longitudinal deviation and / or deformation of first connecting member body in the sleeve.

2. The first connector of claim 1, wherein The longitudinal section of the positioning portion is circular.

3. The first connector of claim 1, wherein, When the positioning portion and the connecting boss are spaced apart relative to each other, the diameter of the positioning portion is smaller than the diameter of the circumscribed circle of the operating portion.

4. The first connector of claim 1, wherein The positioning portion is spaced apart from the mounting portion.

5. The first connector of claim 1, wherein The longitudinal section of the positioning portion is the same as the longitudinal section of the operating portion.

6. The first connector of claim 1, wherein At least part of the first connecting member body, the connecting boss, the positioning portion, the operating portion and the mounting portion is a metal integral part.

7. The first connector of claim 1, wherein The positioning portion is cold-pressed and formed on the first connecting member body.

8. The first connector of claim 1, wherein, The operating portion is cold-pressed and formed on the first connecting member body.

9. The first connector of claim 1, wherein, The positioning portion is provided with at least two, and at least two positioning portions are spaced apart on the first connecting member body.

10. The first connector of claim 1, wherein, The connecting boss, the connecting groove, the positioning part, the operating part and the limiting boss are cold upset formed on the first connecting member body.

11. The first connector of claim 1, wherein The limiting boss is integrally connected with the operating part or the positioning part.

12. The first connector of claim 1, wherein, The operating part is provided with at least one circular arc surface.

13. A first connector as claimed in any one of claims 1 to 12, wherein, The lengths of the positioning part and the operating part are not less than 0.5 mm.

14. A first connector as claimed in any one of claims 1 to 12, wherein, The lengths of the positioning part and the operating part are not more than 8 mm.

15. A first connector as claimed in any one of claims 1 to 12, wherein, The lengths of the positioning part and the operating part are not more than 4 mm.

16. A first connection member characterized by The first connecting member body is provided with a connecting boss at one end, and is provided with a mounting part at the other end, the mounting part is used for locking in the first mounting hole of the first component, a driving external thread part is fixedly arranged between the connecting boss and the mounting part, an operating part with an internal thread is connected with the driving external thread part, a positioning part is fixedly arranged between the operating part and the connecting boss, the positioning part is arranged in space with the operating part, and the positioning part and the connecting boss are arranged in relative space to form a connecting groove; The connecting boss and the connecting groove are used for being inserted into the insertion groove of the second connecting member which can rotate in the rotating direction between the release position and the locking position through the mounting channel of the second component side wall and the second mounting hole of the second component bottom, the connecting boss is used for being limited to be pulled out from the insertion groove by the clamping arm of the second connecting member; or at least part of the connecting groove is used for being inserted into the connecting channel of the third connecting member outer side wall and the connecting hole of the third connecting member top which are communicated and the one end of the threaded fastener connected in the connecting hole is inserted into the connecting groove through the mounting channel of the second component side wall; The operating part is used for being driven by the external tool including a sleeve to drive at least part of the first connecting member body to rotate; when the external tool is the sleeve, the longitudinal section of the operating part is adapted to the longitudinal section of the sleeve; When the external tool is the sleeve, the positioning part is used for the sleeve to pass through to guide the sleeve to be sleeved on the operating part; When the external tool is the sleeve, and the positioning part and the operating part are located in the sleeve, the positioning part and the operating part limit the first connecting member body to be offset and / or deformed in the longitudinal direction in the sleeve; the mounting part includes a second expansion body, and the outer side wall of the second expansion body is provided with at least one second fastening boss; when the operating part is driven by the sleeve to rotate, at least one second fastening boss is expanded outward in the radial direction of the second expansion body, so that at least one second fastening boss is tightly engaged with the inner side wall of the first mounting hole of the first component; The positioning part is used for the mounting channel to pass through to guide the mounting channel to be sleeved on the operating part; When the positioning portion and the operating portion are used to be arranged in the mounting passage of the second member, the positioning portion and the operating portion are used to limit the first connecting member body from being longitudinally deviated and / or deformed in the mounting passage.

17. A first connector as defined in claim 16, wherein The longitudinal section of the positioning portion is circular.

18. The first connector of claim 16, wherein, The diameter of the positioning portion is smaller than the diameter of the circumscribed circle of the operating portion.

19. The first connector of claim 16, wherein, The positioning portion is arranged in the mounting portion.

20. The first connector of claim 16, wherein, The longitudinal section of the positioning portion is the same as the longitudinal section of the operating portion.

21. A connection assembly characterized by The second connecting member comprises a second mounting hole for being mounted on a second member, and the first connecting member as claimed in any one of claims 1-20; The second connecting member is rotatable in the rotation direction between a release position and a locking position; the side wall of the second connecting member is provided with a slot, at least one inner side wall of the slot is provided with a clamping arm; when the second connecting member is in the release position, the connecting protrusion and the connecting groove are used to be inserted into the slot through the mounting passage of the second member and from the opening of the slot; when the second connecting member is in the locking position, the clamping arm limits the connecting protrusion from being pulled out of the slot.

22. A connection system, characterized in that The connecting assembly comprises a first member, a second member and the first connecting member as claimed in claim 21; The first member is provided with a first mounting hole, the mounting portion is inserted into the first mounting hole, and the mounting portion is tightly engaged with the inner side wall of the first mounting hole; The bottom of the second member is provided with a second mounting hole, the side wall of the second member is provided with a mounting passage communicating with the second mounting hole, and the second connecting member is rotatably arranged in the second mounting hole; when the second connecting member is in the release position, the connecting protrusion and the connecting recess are inserted into the slot of the second connecting member through the mounting passage, and the positioning portion and the operating portion are inserted into the mounting passage to limit the first connecting member body from being longitudinally deviated and / or deformed in the installation passage; when the second connecting member is in the locking position, the clamping arm limits the connecting convex from being pulled out of the slot.

23. The attachment system of claim 22, wherein: When the positioning portion and the connecting protrusion are relatively spaced, the mounting passage comprises a first level sub-passage and a second level sub-passage which are in communication with each other, the longitudinal section area of the first level sub-passage is matched with the longitudinal section area of the positioning portion, and the longitudinal section area of the second level sub-passage is matched with the longitudinal section area of the operating portion.

24. The attachment system of claim 22, wherein: When the positioning portion and the connecting protrusion are relatively spaced, one end of the sleeve is provided with a sleeving passage, the sleeving passage comprises a third level sub-passage and a fourth level sub-passage which are in communication with each other, the longitudinal section area of the third level sub-passage is matched with the longitudinal section area of the positioning portion, and the longitudinal cross-sectional area of the fourth level sub-passage is matched with the longitudinal cross-sectional area of the operating portion.

25. A connection assembly characterized by The third connecting member comprises a third mounting hole for being inserted into a second member, a threaded fastener and the first connecting member as claimed in any one of claims 1-20; An outer side wall of the third connecting piece is provided with a connecting channel, a top of the third connecting piece is provided with a connecting hole in communication with the connecting channel, at least a part of the connecting recess is inserted at a position where the connecting channel and the connecting hole are in communication, and the threaded fastener is threadedly connected in the connecting hole and one end of the threaded fastener is inserted in the connecting recess.

26. A connection system characterized in that The connecting assembly comprises a first component, a second component and the connecting assembly as claimed in claim 25. The first component is provided with a first mounting hole, the mounting portion is inserted in the first mounting hole, and the mounting portion is tightly engaged with an inner side wall of the first mounting hole. The second component is provided with a second mounting hole at a bottom thereof and is provided with a mounting channel in communication with the second mounting hole at a side wall thereof, the third connecting piece is inserted in the second mounting hole and makes the connecting channel and the mounting channel in communication, at least a part of the connecting recess passes through the mounting channel to be inserted at a position where the connecting channel and the connecting hole are in communication, the positioning portion and the operating portion are inserted in the mounting channel to limit the first connecting piece body from being longitudinally deviated and / or deformed in the mounting channel, and the threaded fastener is threadedly connected in the connecting hole and one end of the threaded fastener is inserted in the connecting recess.

27. The connection system of claim 26, wherein, When the positioning portion and the connecting boss are oppositely spaced, the mounting channel comprises a first level sub-channel and a second level sub-channel in communication with each other, a longitudinal cross-sectional area of the first level sub-channel is matched with a longitudinal cross-sectional area of the positioning portion, and a longitudinal cross-sectional area of the second level sub-channel is matched with a longitudinal cross-sectional area of the operating portion.

28. The connection system of claim 26, wherein, When the positioning portion and the connecting boss are oppositely spaced, one end of the sleeve is provided with a sleeving channel, the sleeving channel comprises a third level sub-channel and a fourth level sub-channel in communication with each other, a longitudinal cross-sectional area of the third level sub-channel is matched with a longitudinal cross-sectional area of the positioning portion, and a longitudinal cross-sectional area of the fourth level sub-channel is matched with a longitudinal cross-sectional area of the operating portion.

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