Guiding plugging structure and connector assembly

Abstract

The invention belongs to the field of electric connectors, and particularly relates to a guiding insertion structure and a connector assembly. The guiding insertion structure is used for solving the technical problem that a guiding pin is prone to bending deformation due to large bending moment. The connector assembly is used for solving the technical problem that an existing electric connector assembly cannot be normally inserted due to the fact that a guide pin is bent easily. The guiding and inserting structure comprises a guiding pin and a guiding sleeve. The guiding pin comprises a positioning supporting section and a guiding and inserting section. And the guide insertion section is arranged at one end, facing the guide sleeve, of the positioning support section in use and is provided with a guide insertion end. The guide sleeve comprises a positioning support cavity and a guide insertion cavity, and a primary guide conical surface is arranged between the positioning support cavity and the guide insertion cavity. The diameter of the positioning supporting section is larger than that of the guiding inserting section, and the diameter of the positioning supporting cavity is larger than that of the guiding inserting cavity. The structure can prevent the guide pin from being bent when the guide pin is inserted into the guide sleeve in a guiding manner, thereby ensuring that the connector assembly can be smoothly aligned and inserted.

Description

Technical Field

[0001] The invention belongs to the field of electric connectors, and in particular relates to a guiding plug-in structure and a connector assembly. Background Art

[0002] Unmanned storage systems are gradually becoming the mainstream of storage systems, especially for certain dangerous goods, such as flammable and explosive materials. Unmanned storage systems can avoid the harm of dangerous goods to technicians, and can also avoid safety hazards caused by technical personnel's illegal operations. In the current unmanned storage system, technicians need to use unmanned transfer carts to realize the transfer of goods between transport vehicles and shelves. In this process, the unmanned transfer cart faces the demand for automatic docking of plugs and sockets driven by automatic docking mechanisms. However, due to the accumulation of tolerances such as the installation accuracy of the external plug, the installation accuracy of the external socket, and the parking position of the unmanned transfer cart, the external plug may have a large position deviation when blindly plugged with the external socket on site. Therefore, the external plug on the unmanned transfer cart and the external socket of the adapter device must have good blind plugging capabilities, that is, the external plug of the unmanned transfer cart and the external socket of the adapter device must have a large floating amount and blind plugging guide range.

[0003] The existing plug and socket are generally guided to engage with each other through a hole-pin matching structure. The existing hole-pin matching mechanism generally includes a guide pin and a guide sleeve. The guide pin is usually a slender needle-shaped structure, and its front end has a guide cone. Correspondingly, the guide sleeve has an inner cavity for guiding the guide pin to insert, and the inner cavity is provided with a guide cone at the edge of the opening of the guide pin. After the guide pin is against the guide cone, as the guide pin continues to extend, the structure fixedly connected to the guide sleeve undergoes adaptive floating displacement, so that the guide pin can continue to be inserted into the inner cavity of the guide sleeve. In this process, the end of the guide pin will bear the reverse force of the guide sleeve, and the reverse force is based on the length of the guide pin, so that there is a large bending moment on the guide pin. The guide pin generally has a limited cross-sectional size, so its bending resistance coefficient is relatively small. Under the action of the bending moment, the guide pin is prone to plastic bending deformation, which in turn affects the normal engagement of the plug and the socket. Summary of the invention

[0004] The purpose of the present invention is to provide a guide plugging structure to solve the technical problem that the guide pins for guiding plugging on the existing electrical connector assembly are easily bent and deformed due to a large bending moment. The purpose of the present invention is also to provide a connector assembly to solve the technical problem that the existing electrical connector assembly cannot be normally plugged because the guide pins are easily bent.

[0005] The present invention adopts the following technical solution:

[0006] A guiding and plug-in structure comprises a guiding guide pin and a guide sleeve, wherein the guiding guide pin comprises a positioning support section for fixed connection with an adapter component and a guiding and plug-in section for guiding the plug-in; the guiding and plug-in section is arranged at one end of the positioning support section facing the guide sleeve when in use, and has a conical guiding and plug-in end; the guide sleeve comprises a positioning support cavity for radially positioning and accommodating the positioning support section and a guiding and plug-in cavity for guiding and accommodating the guiding and plug-in section, a primary guiding cone surface is arranged between the positioning support cavity and the guiding and plug-in cavity; the diameter of the positioning support section is larger than that of the guiding and plug-in section, and the diameter of the positioning support cavity is larger than that of the guiding and plug-in cavity.

[0007] Furthermore, the guide plug-in section includes a small diameter section and a large diameter section, the large diameter section is connected to the positioning support section, and the guide plug-in end is arranged at the end of the small diameter section.

[0008] Furthermore, the guide insertion cavity includes a first accommodating cavity for accommodating a small diameter segment and a second accommodating cavity for accommodating a large diameter segment, so as to further increase the contact points between the guide pin and the guide sleeve during the insertion process; a secondary guide cone surface is arranged between the first accommodating cavity and the second accommodating cavity, and the primary guide cone surface is connected to the second accommodating cavity.

[0009] Furthermore, the length of the guide insertion section is not less than the sum of the depths of the positioning support cavity, the primary guide cone surface, the second accommodating cavity and the secondary guide cone surface.

[0010] Furthermore, an insertion conical surface is provided at the end of the positioning support section facing the guiding insertion section.

[0011] Furthermore, the positioning support section is detachably connected to the guiding insertion section.

[0012] Furthermore, the guide plug-in section includes a connecting section, on which an external thread is provided; the positioning support section is provided with a connecting hole, and an internal thread is provided on the inner wall of the connecting hole, so that the guide plug-in section and the positioning support section are connected by threads.

[0013] Furthermore, a radial positioning ring is provided on the connecting section, and a positioning countersunk hole for positioning and cooperating with the radial positioning ring is provided at the edge of the connecting hole.

[0014] Furthermore, a sealing tube is installed at the opening of the guide insertion cavity facing away from the positioning support cavity.

[0015] Beneficial effects: The present invention proposes a new guiding and plugging structure. The guiding and plugging structure described in the present invention includes a guiding guide pin and a guide sleeve, wherein the guiding guide pin includes a positioning support section for fixed connection with the adapter component and a guiding and plugging section for guiding and plugging. The guiding and plugging section is arranged at one end of the positioning support section facing the guide sleeve when in use, and has a conical guiding and plugging end for guiding and plugging with the guide sleeve. The guide sleeve includes a positioning support cavity for radial positioning and accommodating the positioning support section and a guiding and plugging cavity for guiding and accommodating the guiding and plugging section, and a primary guiding conical surface is arranged between the positioning support cavity and the guiding and plugging cavity, so that the guiding and plugging section can be smoothly guided into the guiding and plugging cavity during the plugging process. The diameter of the positioning support section is larger than that of the guiding and plugging section, and the diameter of the positioning support cavity is larger than that of the guiding and plugging cavity. Under the premise of not changing the diameter of the guiding and plugging section, the aforementioned guiding guide pin has a positioning support section with a thicker diameter, which reduces the length of the guiding and plugging section, so that the guiding and plugging section has a stronger bending resistance, and also improves the overall bending resistance of the guiding guide pin. On this basis, since the inner cavity of the guide sleeve is also divided into a positioning support cavity with a larger diameter to adapt to the guide pin and a guiding plug-in cavity with a smaller diameter, during the process of the guide pin and the guide sleeve being plugged in, the positioning support cavity and the guiding plug-in cavity can be in contact with the positioning support section and the guiding plug-in section of the guide pin at the same time to disperse the force applied by the guide sleeve to the guide pin. After the guide pin and the guide sleeve are plugged in place, since the positioning support section with a thicker diameter is positioned and matched with the positioning support cavity, the force applied by the guide sleeve to the guide pin mainly acts on the positioning support section. The positioning support section is directly fixedly connected to the adapter device and has a larger diameter, so it has good bending resistance. At the same time, due to the shortening of the force arm, the bending moment generated when the aforementioned force acts on the positioning support section is also smaller. In summary, the above structure can avoid the guide pin from being bent when it is plugged in with the guide sleeve as much as possible, thereby ensuring that the connector assembly can be reliably and smoothly aligned and plugged in.

[0016] A connector assembly comprises a plug and a socket, one of the plug and the socket being a floating connector; a guiding plug-in structure is arranged between the plug and the socket, the guiding plug-in structure comprising a guiding guide pin and a guide sleeve, the guiding guide pin comprising a positioning support section for fixed connection with an adapter component and a guiding plug-in section for guiding plug-in; the guiding plug-in section is arranged at one end of the positioning support section facing the guide sleeve when in use, and has a conical guiding plug-in end; the guide sleeve comprises a positioning support cavity for radially positioning and accommodating the positioning support section and a guiding plug-in cavity for guiding and accommodating the guiding plug-in section, a primary guiding cone surface is arranged between the positioning support cavity and the guiding plug-in cavity; the diameter of the positioning support section is larger than that of the guiding plug-in section, and the diameter of the positioning support cavity is larger than that of the guiding plug-in cavity.

[0017] Furthermore, the guide plug-in section includes a small diameter section and a large diameter section, the large diameter section is connected to the positioning support section, and the guide plug-in end is arranged at the end of the small diameter section.

[0018] Furthermore, the guide insertion cavity includes a first accommodating cavity for accommodating a small diameter segment and a second accommodating cavity for accommodating a large diameter segment, so as to further increase the contact points between the guide pin and the guide sleeve during the insertion process; a secondary guide cone surface is arranged between the first accommodating cavity and the second accommodating cavity, and the primary guide cone surface is connected to the second accommodating cavity.

[0019] Furthermore, the length of the guide insertion section is not less than the sum of the depths of the positioning support cavity, the primary guide cone surface, the second accommodating cavity and the secondary guide cone surface.

[0020] Furthermore, an insertion conical surface is provided at the end of the positioning support section facing the guiding insertion section.

[0021] Furthermore, the positioning support section is detachably connected to the guiding insertion section.

[0022] Furthermore, the guide plug-in section includes a connecting section, on which an external thread is provided; the positioning support section is provided with a connecting hole, and an internal thread is provided on the inner wall of the connecting hole, so that the guide plug-in section and the positioning support section are connected by threads.

[0023] Furthermore, a radial positioning ring is provided on the connecting section, and a positioning countersunk hole for positioning and cooperating with the radial positioning ring is provided at the edge of the connecting hole.

[0024] Furthermore, a sealing tube is installed at the opening of the guide insertion cavity facing away from the positioning support cavity.

[0025] Beneficial effects: The present invention improves the existing connector assembly. The connector assembly described in the present invention includes a plug and a socket, one of the plug and the socket is a floating connector and a guide plug-in structure is arranged between the plug and the socket. The guide plug-in structure includes a guide pin and a guide sleeve, wherein the guide pin includes a positioning support section for fixed connection with the adapter component and a guide plug-in section for guiding the plug-in. The guide plug-in section is arranged at one end of the positioning support section facing the guide sleeve when in use, and has a conical guide plug-in end for guiding the plug-in with the guide sleeve. The guide sleeve includes a positioning support cavity for radially positioning and accommodating the positioning support section and a guide plug-in cavity for guiding and accommodating the guide plug-in section, and a primary guiding cone surface is arranged between the positioning support cavity and the guide plug-in cavity so that the guide plug-in section can be smoothly guided into the guide plug-in cavity during the plug-in process. The diameter of the positioning support section is larger than that of the guide plug-in section, and the diameter of the positioning support cavity is larger than that of the guide plug-in cavity. Without changing the diameter of the guide plug-in section, the aforementioned guide pin has a positioning support section with a thicker diameter, which reduces the length of the guide plug-in section, making the guide plug-in section have a stronger bending resistance, and also improves the overall bending resistance of the guide pin. On this basis, since the inner cavity of the guide sleeve is also divided into a positioning support cavity with a larger diameter adapted to the guide pin and a guide plug-in cavity with a smaller diameter, in the process of the guide pin and the guide sleeve plugging together, the positioning support cavity and the guide plug-in cavity can contact the positioning support section and the guide plug-in section of the guide pin at the same time to disperse the force applied by the guide sleeve to the guide pin. After the guide pin and the guide sleeve are plugged into place, since the positioning support section with a thicker diameter is positioned and matched with the positioning support cavity, the force applied by the guide sleeve to the guide pin mainly acts on the positioning support section. The positioning support section is directly fixedly connected to the adapter and has a larger diameter, so it has good bending resistance. At the same time, due to the shortening of the force arm, the bending moment generated when the aforementioned force acts on the positioning support section is also smaller. In summary, the above structure can avoid the guide pin from being bent when being inserted into the guide sleeve as much as possible, thereby ensuring that the connector assembly can be reliably and smoothly aligned and inserted. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an isometric view of a socket equipped with the guide pins of the guide plugging structure of the present invention;

[0027] Figure 2 It is an isometric view of a plug equipped with a guide sleeve of the guide plugging structure of the present invention;

[0028] Figure 3 for Figure 1 The socket and Figure 2 A cross-sectional schematic diagram of the plug when it is plugged in;

[0029] Figure 4It is a cross-sectional schematic diagram of the guiding plug-in structure of the present invention when it is initially guided into place;

[0030] Figure 5 for Figure 4 A schematic cross-sectional view of the guide pin further penetrating into the middle;

[0031] Figure 6 for Figure 5 A schematic cross-sectional view of the guide pin further penetrating into the middle;

[0032] Figure 7 for Figure 6 A cutaway diagram showing the guide pin being inserted into place;

[0033] Figure 8 for Figure 3 A cross-sectional diagram of the alignment of the guide pin and the guide sleeve;

[0034] Fig. 9 for Figure 1 A schematic cross-sectional view of the floating connection structure of the middle socket;

[0035] Fig.10 for Figure 1 Schematic diagram of the unilateral radial floating amount of the middle socket;

[0036] Fig.11 A geometrical diagram of the single-side angular guidance range of the guide pin and the guide sleeve;

[0037] Fig.12 for Figure 1 Middle socket and Figure 2 A cross-sectional diagram of the middle plug when initially plugged in place;

[0038] Fig.13 for Fig.12 A cross-sectional diagram showing the plug and the socket being fully engaged;

[0039] The names of the components corresponding to the corresponding reference numerals in the figure are: 1. guide plug structure; 2. guide guide pin; 3. guide sleeve; 4. plug; 5. socket; 6. positioning support section; 7. guide plug section; 8. guide plug end; 9. positioning support cavity; 10. guide plug cavity; 11. small diameter section; 12. large diameter section; 13. first accommodating cavity; 14. second accommodating cavity; 15. primary guide cone surface; 16. secondary guide cone surface; 17. plug cone surface; 18. connecting section; 19. connecting hole; 20. diameter 1. Positioning ring stage; 21. Positioning countersunk hole; 22. Sealing tube; 23. Socket shell; 24. Socket body; 25. Floating mounting plate; 26. Floating connection structure; 27. Floating hole; 28. Floating sleeve; 29. ​​Floating sleeve body; 30. Anti-slip stop edge; 31. First sleeve body; 32. Second sleeve body; 33. First connecting cylinder; 34. First stop edge; 35. Second connecting cylinder; 36. Second stop edge; 37. Guide sleeve plate; 38. Pin; 39. Pin section; 40. Socket; 41. Socket section. DETAILED DESCRIPTION

[0040] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0041] The inventive concept of the guiding plug-in structure 1 of the present invention is as follows:

[0042] A guiding plug-in structure specifically includes a guiding guide pin and a guide sleeve. The guiding guide pin includes a positioning support section and a guiding plug-in section. The positioning support section is used to be fixedly connected to an adapter component, and the guiding plug-in section is used to cooperate with the guide sleeve to achieve guiding plug-in. The guiding plug-in section is arranged at one end of the positioning support section facing the guide sleeve when in use, and has a conical guiding plug-in end. The guide sleeve includes a positioning support cavity and a guiding plug-in cavity, the positioning support cavity is used to accommodate the positioning support section and radially position and cooperate with the positioning support section, and the guiding plug-in cavity is used to guide and accommodate the guiding plug-in section. A primary guiding cone surface is arranged between the positioning support cavity and the guiding plug-in cavity, so that the guiding plug-in section can be smoothly guided into the guiding plug-in cavity during the plug-in process. The diameter of the positioning support section is larger than that of the guiding plug-in section, and the diameter of the positioning support cavity is larger than that of the guiding plug-in cavity.

[0043] Without changing the diameter of the guide plug-in section, the aforementioned guide pin has a positioning support section with a thicker diameter, which reduces the length of the guide plug-in section, making the guide plug-in section have a stronger bending resistance, and also improves the overall bending resistance of the guide pin. On this basis, since the inner cavity of the guide sleeve is also divided into a positioning support cavity with a larger diameter adapted to the guide pin and a guide plug-in cavity with a smaller diameter, in the process of the guide pin and the guide sleeve plugging together, the positioning support cavity and the guide plug-in cavity can contact the positioning support section and the guide plug-in section of the guide pin at the same time to disperse the force applied by the guide sleeve to the guide pin. After the guide pin and the guide sleeve are plugged into place, since the positioning support section with a thicker diameter is positioned and matched with the positioning support cavity, the force applied by the guide sleeve to the guide pin mainly acts on the positioning support section. The positioning support section is directly fixedly connected to the adapter and has a larger diameter, so it has good bending resistance; at the same time, due to the shortening of the force arm, the bending moment generated when the aforementioned force acts on the positioning support section is also smaller. In summary, the above structure can avoid the guide pin from being bent when being inserted into the guide sleeve as much as possible, thereby ensuring that the connector assembly can be reliably and smoothly aligned and inserted.

[0044] Based on the above inventive concept, the embodiments of the guide plug-in structure of the present invention are as follows:

[0045] A guide plugging structure 1 includes a guide pin 2 and a guide sleeve 3. The guide plugging structure 1 is particularly suitable for the scenario of floating plugging of a connector assembly. When in use, the guide pin 2 and the guide sleeve 3 are respectively arranged on a plug 4 and a socket 5 of the connector assembly. In this embodiment, the guide pin 2 can be as follows Figure 1 As shown, the guide sleeve 3 is arranged on the socket 5, and the guide sleeve 3 can be Figure 2 As shown, it is arranged on the plug 4. Alternatively, the guide pin 2 can also be arranged on the plug 4, and the guide sleeve 3 can be arranged on the socket 5. Figure 1 The socket 5 shown is Figure 2 The structure of the plug 4 when plugged in can be referred to Figure 3 shown.

[0046] For reference Figure 4-8As shown, the guide pin 2 includes a positioning support section 6 for fixed connection with the adapter member and a guiding plug-in section 7 for guiding the plug-in. The positioning support section 6 is specifically a needle-shaped structure, and a conical guiding plug-in end 8 is provided at one end thereof facing the guide sleeve 3 so as to guide and cooperate with the guide sleeve 3. The diameter of the positioning support section 6 is larger than the guiding plug-in section 7, and is specifically a columnar structure. The guiding plug-in section 7 is arranged at one end of the positioning support section 6 facing the guide sleeve 3 when in use, so that the guiding pin 2 forms a pin-shaped structure with a small diameter portion arranged toward the guide sleeve 3. The inner cavity of the guide sleeve 3 specifically includes a positioning support cavity 9 and a guiding plug-in cavity 10. The positioning support cavity 9 is used to radially position and accommodate the positioning support section 6, and is specifically a cylindrical cavity adapted to the positioning support section 6. The guiding plug-in cavity 10 is used to guide and accommodate the guiding plug-in section 7, and is specifically a cylindrical cavity adapted to the guiding plug-in section 7, and is coaxially arranged with the positioning support cavity 9. The diameter of the positioning support cavity 9 is larger than that of the guide insertion cavity 10, and the positioning support cavity 9 is arranged on the side of the guide insertion cavity 10 facing the guide pin 2, so as to form an open cavity with a large diameter portion facing the guide pin 2. A primary guide cone 15 is arranged between the positioning support cavity 9 and the guide insertion cavity 10 to transitionally connect the positioning support cavity 9 and the guide insertion cavity 10, so that the guide insertion section 7 can smoothly slide from the positioning support cavity 9 to the guide insertion cavity 10 during the insertion process.

[0047] The key to this embodiment is that reference Figure 4-8 As shown, the aforementioned guide plug-in section 7 specifically includes a small diameter section 11 and a large diameter section 12. The large diameter section 12 is connected to the positioning support section 6, and the guide plug-in end 8 is arranged at the end of the small diameter section 11. Such an arrangement makes the guide plug-in section 7 also present a stepped shaft structure, so it has good bending resistance. At the same time, since the large diameter section 12 is connected to the positioning support section 6, the strength of the junction between the guide plug-in section 7 and the positioning support section 6 is higher, and it can better overcome the influence of the bending moment at the junction, thereby preventing the guide plug-in section 7 and the positioning support section 6 from bending due to stress concentration at the insertion point. Of course, the guide plug-in section 7 can also be a straight section, that is, the same diameter is maintained at all locations on the guide plug-in section 7 except the guide plug-in end 8.

[0048] Correspondingly, the guide plug-in cavity 10 includes a first accommodating cavity 13 for accommodating the small diameter section 11 and a second accommodating cavity 14 for accommodating the large diameter section 12. A secondary guide cone 16 is provided between the first accommodating cavity 13 and the second accommodating cavity 14, and the aforementioned primary guide cone 15 is connected to the second accommodating cavity 14. Such an arrangement can make the first accommodating cavity 13 and the second accommodating cavity 14 contact the small diameter section 11 and the large diameter section 12 of the guide pin 2 respectively at the same time during the insertion of the guide pin 2 and the guide sleeve 3, so as to further increase the contact points between the guide pin 2 and the guide sleeve 3, and further disperse the force applied by the guide sleeve 3 to the guide pin 2. Of course, the guide plug-in cavity 10 can also be a cavity with equal diameters everywhere, on this basis, the aforementioned large diameter section 12 and the small diameter section 11 are accommodated in the guide plug-in cavity 10 as a whole.

[0049] The length of the aforementioned guide plug-in section 7 is not less than the sum of the depths of the positioning support cavity 9, the primary guide cone 15, the second accommodating cavity 14 and the secondary guide cone 16, so that when the guide plug-in end 8 of the guide pin 2 is inserted into the first accommodating cavity 13, the positioning support cavity 9 just begins to be inserted and matched with the positioning support section 6. In this way, on the one hand, it can ensure that there is a sufficient matching length between the guide pin 2 and the guide sleeve 3; on the other hand, it also ensures that the small diameter section 11, the large diameter section 12, and the positioning support section 6 are in contact with the first accommodating cavity 13, the second accommodating cavity 14, and the positioning support cavity 9 respectively in terms of size, thereby providing a structural basis for dispersing the force on the guide pin 2. In other embodiments, the axial length of the guide plug-in section 7 can also be less than the sum of the axial depths of the positioning support cavity 9, the primary guide cone 15, the second accommodating cavity 14 and the secondary guide cone 16.

[0050] The end of the aforementioned positioning support section 6 facing the guide plug-in section 7 is provided with a plug-in conical surface 17. Since there is no positioning and matching relationship between the guide plug-in section 7 and the guide plug-in cavity 10, there is always a certain matching spacing between the guide plug-in end 8 and the guide plug-in cavity 10 before the positioning support section 6 is inserted into the positioning support cavity 9. This means that when the positioning support section 6 starts to be positioned and plugged with the positioning support cavity 9, there may be a certain eccentricity between the two in the radial direction. The provision of the plug-in conical surface 17 can guide and align the two in the radial direction when the positioning support section 6 starts to be positioned and plugged with the positioning support cavity 9, so that the positioning support section 6 and the positioning support cavity 9 can be positioned and plugged smoothly.

[0051] During the guided insertion, the guiding insertion section 7 of the guiding guide pin 2 is first aligned with the positioning support cavity 9. As the guiding guide pin 2 and the guide sleeve 3 are guided and inserted, the guiding insertion end 8 on the guiding insertion section 7 abuts against the primary guiding cone 15 of the guide sleeve 3. The guiding guide pin 2 is affected by the force of the primary guiding cone 15, and is forced to drive the socket 5 fixedly connected to the guiding guide pin 2 to float adaptively to align the relative positions of the plug 4 and the socket 5. At this point, the first-level guidance of the guiding guide pin 2 and the guide sleeve 3 is completed. As the guiding guide pin 2 and the guide sleeve 3 continue to guide and insert, the guiding insertion section 7 enters the second accommodating cavity 14 of the guiding insertion cavity 10, and finally abuts against the secondary guiding cone 16. The guiding guide pin 2 is affected by the force of the secondary guiding cone 16, and is forced to drive the socket 5 fixedly connected to the guiding guide pin 2 to float adaptively to align the relative positions of the plug 4 and the socket 5. At this point, the second-level guidance of the guiding guide pin 2 and the guide sleeve 3 is completed. As the guide pin 2 goes deeper, the guide insertion section 7 of the guide pin 2 is finally inserted into the first accommodating cavity 13. At this time, the positioning support section 6 begins to be inserted into the positioning support cavity 9. Under the guidance of the insertion cone 17, the positioning support section 6 and the positioning support cavity 9 are completely positioned and matched in the radial direction, so as to serve as the main support force structure to bear most of the radial load.

[0052] The aforementioned positioning support section 6 and the guide plug-in section 7 are preferably assembled into one piece by a detachable connection. Compared with the one-piece molding processing method, the above arrangement can process and mold the positioning support section 6 and the guide plug-in section 7 separately, thereby reducing the overall processing difficulty of the guide pin 2. At the same time, since the positioning support section 6 and the guide plug-in section 7 are assembled into one piece by a detachable connection, the assembly difficulty is lower, which effectively reduces the assembly molding cost of the guide pin 2. Of course, the positioning support section 6 and the guide plug-in section 7 can also be assembled into one piece by welding, interference plugging, or directly integrally molded.

[0053] On the basis of the above structure, the guide plug-in section 7 can include a connecting section 18. An external thread is provided on the connecting section 18, a connecting hole 19 is provided on the positioning support section 6, and an internal thread is provided on the inner wall of the connecting hole 19, so that the guide plug-in section 7 and the positioning support section 6 are connected as one by thread. Such a setting is convenient for disassembly and assembly, and can effectively improve the production and assembly efficiency of the guide pin 2. It is also convenient for transportation and storage, and can reduce the risk of bending and deformation of the guide pin 2 due to accidents during transportation and storage. The aforementioned large diameter section 12 can be processed with a flat surface so that the guide plug-in section can be screwed with tools such as a wrench. A radial positioning ring stage 20 is also provided on the connecting section 18, and a positioning countersunk hole 21 for positioning and matching with the radial positioning ring stage 20 is provided at the edge of the hole 19. In this way, after the connecting section 18 is installed in place, the guide pin 2 can prevent radial misalignment between the positioning support section 6 and the guide plug-in section 7 through the positioning and matching of the radial positioning ring stage 20 and the positioning countersunk hole 21. At the same time, the bending strength of the connection between the positioning support section 6 and the guide plug-in section 7 can be ensured by the radial positioning ring 20 and the positioning countersunk hole 21 .

[0054] A sealing tube 22 is installed at the opening of the guide insertion cavity 10 facing away from the positioning support cavity 9, so that when the guide pin 2 is over-inserted or the length is too long, the part of the guide pin 2 extending out of the guide sleeve 3 is still wrapped in the sealing tube 22, thereby preventing the guide pin 2 from scratching the relevant parts of the structure adapted to be installed with the guide sleeve 3 due to over-insertion or excessive length.

[0055] The embodiment of the connector assembly of the present invention is:

[0056] A connector assembly, the structure of which can refer to Figure 3 As shown, it includes a plug 4 and a socket 5. One of the plug 4 and the socket 5 is a floating connector. In this embodiment, the socket 5 can be installed in a floating manner on the matching device to adapt to the active insertion of the plug 4. In other embodiments, the socket 5 can also be fixed on the matching device so that the plug 4 has the ability to float. A guiding plug-in structure 1 is arranged between the plug 4 and the socket 5. The guiding plug-in structure 1 is the guiding plug-in structure 1 described in the embodiment of the guiding plug-in structure 1 described in the present invention, and specifically includes a guide sleeve 3 and a guiding guide pin 2. The guiding guide pin 2 can be arranged on the plug 4, and the guide sleeve 3 is correspondingly arranged on the socket 5. Or the guiding guide pin 2 can be arranged on the socket 5, and the guide sleeve 3 is correspondingly arranged on the plug 4. The specific structure of the guide sleeve 3 and the guiding guide pin 2 can refer to the aforementioned embodiment, and will not be repeated here.

[0057] In this embodiment, the guide pins 2 are arranged on the socket 5, and the guide sleeves 3 are correspondingly arranged on the plug 4. The guide pins 2 and the guide sleeves 3 are arranged in groups along the circumference of the socket 5 and the plug 4 to achieve the corner alignment of the plug 4 and the socket 5. The socket 5 specifically includes a socket housing 23 and a socket body 24 fixed in the socket housing 23. The socket body 24 includes an insulator, a jack 40 and other related structures, which are existing structures and are not described here. The socket housing 23 includes a cylindrical main housing and a floating mounting plate 25 extending radially outward. The floating mounting plate 25 is specifically rectangular, and a floating connection structure 26 for fixed connection with an adapter device is floatingly arranged thereon. The guide pins 2 are also arranged on the floating mounting plate 25.

[0058] For reference Fig. 9 As shown, a floating hole 27 is provided on the floating mounting plate 25, and the floating connection structure 26 specifically includes a floating sleeve 28 that is floatingly installed in the floating hole 27. In this embodiment, the floating hole 27 is opened at the four corners of the floating mounting plate 25 in the form of a rectangular plate, so that the floating hole 27 can be opened as large as possible. The floating sleeve 28 specifically includes a floating sleeve body 29 that is clearance-matched with the floating hole 27, and an anti-slip edge 30 that is provided at both ends of the floating sleeve body 29.

[0059] In this embodiment, the floating sleeve 28 is formed by connecting the first sleeve 31 and the second sleeve 32 separately. The first sleeve 31 includes a first connecting tube 33 and a first stop edge 34, and the second sleeve 32 includes a second connecting tube 35 and a second stop edge 36. The first connecting tube 33 and the second connecting tube 35 are axially detachable and matched to form the aforementioned floating sleeve 29. There is a spacing between the first stop edge 34 and the second stop edge 36, and they are respectively stopped on both sides of the floating hole 27 to form the aforementioned anti-slip stop edge 30. The first connecting tube 33 is provided with an internal thread, and the second connecting tube 35 is provided with an external thread, so that the first connecting tube 33 and the second connecting tube 35 can be directly connected to each other by threads. The barrel cavity of the second connecting tube 35 is used for fixed connection with the adapter device.

[0060] The main structure of the plug 4 is as follows Figure 2 As shown, the housing is provided with a guide sleeve plate 37 for arranging the guide sleeve 3. The arrangement of the guide sleeve 3 on the guide sleeve plate 37 corresponds to the arrangement of the guide pin 2 on the floating mounting plate 25, which will not be described in detail here.

[0061] like Fig.12 As shown, the bottom of the socket 40 of the socket 5 has a through-hole section 41; the pin 38 on the plug 4 has a through-pin section 39, and the through-hole section 41 and the through-pin section 39 are over-inserted and matched, so that there is an axial insertion floating amount between the socket 5 and the plug 4. This can prevent the large-range blind plug socket 5 and the plug 4 from being damaged during over-plugging, and on the other hand, it also improves the flexibility of use of the large-range blind plug socket 5 and the plug 4.

[0062] For the convenience of explanation, the connector assembly of the present invention is now described in detail in combination with a certain demand scenario. It should be emphasized that this demand scenario is only a specific example given for the convenience of explanation and does not have any special meaning.

[0063] It is now required that the socket 5 and the plug 4 have Fig.10 The single-side radial floating amount δ, axial floating amount L, and single-side circumferential floating amount α are shown. Figure 8 As shown, the diameter of the positioning support cavity 9 of the guide sleeve 3 can be set to D, and a chamfer C is provided at the cavity opening. The diameter of the guide plug section 7 of the guide pin 2 is d, and the guide plug end 8 at the front end thereof has a chamfer with a radius of r. In this way, when the plug 4 is plugged into the socket 5, it is necessary to ensure that δ≤(Dd) / 2 to ensure that the guiding effect of the guide bell mouth can fully cover the radial floating amount of the socket 5.

[0064] For reference Fig.11 As shown, when plugged in, the socket 5 sinks a distance H due to its own weight. At this time, the maximum guiding range that can be achieved on one side between the guide pin 2 and the guide sleeve 3 is θ. Let θ≥α to ensure that the guiding effect of the inclined expansion can fully cover the circumferential floating amount of the blind-plug socket 5.

[0065] Since the pin 38 is lengthened and the hole 40 is deepened, please refer to Fig.12 As shown, when the distance between the abutting end face of the plug 4 and the abutting end face of the socket housing 23 is L, the contact length between the pin 38 and the socket 40 is sufficient to achieve a sufficient conductive connection. At this time, the pin 38 can be inserted forward a certain distance L1 (L1>0) to reach the predetermined fully plugged position. Fig.13 As shown, the pin 38 is inserted forward a certain distance L2 (L2>0), at which time the abutting end surface of the plug 4 and the abutting end surface of the socket housing 23 are pressed against each other, and the pin 38 still does not press against the bottom of the hole 40. L=L1+L2, that is, the connector assembly has an axial floating amount L.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A guiding plug-in structure, characterized in that: The invention comprises a guide pin (2) and a guide sleeve (3), wherein the guide pin (2) comprises a positioning support section (6) for fixed connection with an adapter component and a guide plug-in section (7) for guiding plug-in; the guide plug-in section (7) is arranged at one end of the positioning support section (6) facing the guide sleeve (3) when in use, and has a conical guide plug-in end (8); the guide sleeve (3) comprises a positioning support cavity (9) for radial positioning and accommodating the positioning support section (6) and a guide plug-in cavity (10) for guiding and accommodating the guide plug-in section (7), and a primary guide cone surface (15) is arranged between the positioning support cavity (9) and the guide plug-in cavity (10); the diameter of the positioning support section (6) is larger than that of the guide plug-in section (7), and the diameter of the positioning support cavity (9) is larger than that of the guide plug-in cavity (10).

2. The guide plug-in structure according to claim 1, characterized in that: The guide plug-in section (7) comprises a small diameter section (11) and a large diameter section (12); the large diameter section (12) is connected to the positioning support section (6); and the guide plug-in end (8) is arranged at the end of the small diameter section (11).

3. The guide plug-in structure according to claim 2, characterized in that: The guide insertion cavity (10) comprises a first accommodating cavity (13) for accommodating the small diameter section (11) and a second accommodating cavity (14) for accommodating the large diameter section (12), so as to further increase the contact points between the guide pin (2) and the guide sleeve (3) during the insertion process; a secondary guide cone surface (16) is provided between the first accommodating cavity (13) and the second accommodating cavity (14), and the primary guide cone surface (15) is connected to the second accommodating cavity (14).

4. The guide plug-in structure according to claim 3, characterized in that: The length of the guide insertion section (7) is not less than the sum of the depths of the positioning support cavity (9), the primary guide conical surface (15), the second accommodating cavity (14) and the secondary guide conical surface (16).

5. The guiding plug-in structure according to any one of claims 1 to 4, characterized in that: The end of the positioning support section (6) facing the guiding insertion section (7) is provided with an insertion cone surface (17).

6. The guiding plug-in structure according to any one of claims 1 to 4, characterized in that: The positioning support section (6) is detachably connected to the guiding insertion section (7).

7. The guide plug-in structure according to claim 6, characterized in that: The guide plug-in section (7) comprises a connecting section (18) on which an external thread is provided; the positioning support section (6) is provided with a connecting hole (19) on which an internal thread is provided on an inner wall, so that the guide plug-in section (7) and the positioning support section (6) are connected via threads.

8. The guide plug-in structure according to claim 7, characterized in that: The connecting section (18) is also provided with a radial positioning ring stage (20), and the edge of the connecting hole (19) is provided with a positioning countersunk hole (21) for positioning and matching with the radial positioning ring stage (20).

9. The guiding plug-in structure according to any one of claims 1 to 4, characterized in that: A sealing tube (22) is installed at the opening of the guide insertion cavity (10) facing away from the positioning support cavity (9).

10. A connector assembly, comprising a plug (4) and a socket (5), wherein one of the plug (4) and the socket (5) is a floating connector; a guiding plugging structure (1) is provided between the plug (4) and the socket (5), characterized in that: The guiding and plugging structure (1) is the guiding and plugging structure according to any one of claims 1 to 9.

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