A round connector male

Abstract

The application discloses a circular connector male head, which comprises a first shell and a second shell which are detachably connected, the first shell is detachably connected with an intermediate shell, the second shell is sleeved outside the intermediate shell, a plurality of groups of insertion pins are integrated in the intermediate shell, and the application further comprises a collection core body which is detachably installed in the intermediate shell and has a plurality of first installation areas and at least one collection installation area which are arranged at the outer side of the collection core body in a circumferential direction, and a collection sleeve which is detachably installed in the collection installation area, is divided into a plurality of second installation areas in the collection sleeve, and surrounds a plurality of third installation areas between the collection sleeve and the collection installation area in the collection installation area. According to the application, the first installation area, the second installation area and the third installation area are used for independently installing the groups of insertion pins, so that each insertion pin in each group of insertion pins has a separate installation area, the mutual isolation between the insertion pins is met, each group of insertion pin modules is arranged, and it is convenient to check and independently maintain and replace the specified insertion pin.

Description

Technical Field

[0001] This invention relates to the field of circular connector technology, and more specifically to a male circular connector. Background Technology

[0002] Circular connectors, also known as industrial connectors or circular aviation plugs, are a type of electronic connector with a cylindrical basic structure and a circular mating surface. Connectors can be divided into male and female heads, and they are usually connected by plugging. Existing circular connectors can basically meet the needs of daily use, but there are still some shortcomings that need to be improved.

[0003] Patent document CN201621148741.5 discloses a circular connector, comprising: an insulating body; conductive terminals held within the insulating body; a metal shell fitted onto the insulating body; and an isolation sleeve disposed between the insulating body and the metal shell, electrically isolating the conductive terminals from the metal shell. A raised rib is formed on the isolation sleeve, a first groove is formed on the outer wall of the insulating body, and a second groove is formed on the inner wall of the metal shell. The raised rib of the isolation sleeve is fitted into the first and second grooves, preventing the metal shell from rotating circumferentially relative to the insulating body. In this invention, since the raised rib is directly formed on the isolation sleeve, no additional components are needed for the circular connector, simplifying its structure and making its manufacture and installation easier.

[0004] In the circular connectors described above, the male connector has multiple functional pins integrated on the insulating body. When the connector is equipped with more functional pins, the failure of a pin with a certain function may affect the entire insulating structure, making maintenance and replacement extremely inconvenient. Therefore, there is an urgent need for a circular connector male to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a circular connector male to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A circular connector male includes a first housing and a second housing that are detachably connected. The first housing is detachably connected to an intermediate housing. The second housing is sleeved on the outside of the intermediate housing. The intermediate housing integrates multiple sets of pins. The connector also includes: a core assembly that is detachably installed inside the intermediate housing. The core assembly has multiple first mounting areas and at least one assembly mounting area arranged circumferentially on its outer side. The first mounting areas are used for the independent installation of each set of pins. A sleeve assembly that is detachably installed within the assembly mounting area has multiple second mounting areas for the independent installation of each set of pins. The sleeve assembly further divides the assembly mounting area into multiple third mounting areas for the independent installation of each set of pins.

[0008] Preferably, a grounding component is detachably installed on the intermediate housing, and the grounding component is in conductive contact with the first housing and the second housing inside the first housing and the second housing, so that the first housing and the second housing form a shielding shell at least inside.

[0009] Preferably, the grounding assembly includes a grounding ring and a grounding pin. The grounding ring is detachably connected to the intermediate housing, and the grounding pin is detachably connected to the grounding ring and inserted into the intermediate housing. The grounding pin makes conductive contact with the first housing and the second housing through the grounding ring.

[0010] Preferably, the grounding pin is configured to be parallel to the axis of each group of pins and located within the rotating shape of the intermediate housing, along with each group of pins.

[0011] Preferably, the grounding ring is provided with at least one inwardly bent first spring and at least one outwardly bent second spring, the first spring being in conductive contact with the first housing and the second spring being in conductive contact with the second housing.

[0012] Preferably, the intermediate housing is provided with a recessed portion adapted to the first mounting area, and the grounding pin is disposed in the recessed portion.

[0013] Preferably, the grounding ring is provided with a torsion portion that matches the concave portion, and the grounding pin is embedded in the torsion portion and axially positioned.

[0014] Preferably, the intermediate housing is provided with a through hole for the grounding pin to pass through, and the two ends of the through hole are composed of staggered inclined portions.

[0015] Preferably, one end of the first housing is provided with an arc-shaped base that is adapted to the inner cavity of the second housing, and the second housing is fitted onto the arc-shaped base and then connected to the first housing by bolts.

[0016] Preferably, the two ends of the arc-shaped base are provided with first slots, and the outer wall of the intermediate shell is provided with a first block that matches the first slot.

[0017] In the above technical solution, the beneficial effects of the present invention are:

[0018] This circular connector male head uses a core assembly to gather multiple sets of pins together. The first set of pins is installed independently in the first mounting area on the core assembly, the second set of pins is installed independently in the second mounting area formed by the internal partition of the core assembly, and the third set of pins is installed independently in the third mounting area formed by the internal partition of the core assembly. The core assembly can be removed from the intermediate housing, and the intermediate housing can be removed from the first and second housings. This ensures that each pin in each set of pins has its own mounting area, which not only satisfies the isolation between the pins, but also allows for modular arrangement of the pins, facilitating troubleshooting and independent maintenance and replacement of specific pins.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0020] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall exploded structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the core structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the assembly sleeve and bundle structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the assembly nesting structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the core and sleeve structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the intermediate shell and the core structure of the present invention;

[0029] Figure 8This is a schematic diagram of the intermediate shell structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the grounding ring and grounding pin structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the overall side cross-sectional structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the overall top cross-sectional structure of the present invention;

[0033] Figure 12 For the present invention Figure 11 A magnified structural diagram of point A in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. First housing; 2. Second housing; 3. Intermediate housing; 4. Aggregating core; 5. Aggregating sleeve; 6. Arc-shaped base; 7. Bolt; 8. First slot; 9. First block; 10. Elastic lever; 11. Locking block; 12. Locking hole; 13. Aggregating body; 14. Grounding ring; 15. Grounding pin; 16. Concave part; 17. Through hole; 18. Inclined part; 19. Torsional part; 20. First spring piece; 21. Second spring piece; 22. Second block; 23. Second slot; 24. Third block; 25. Third slot; 26. Fourth block; 27. Fourth slot. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0037] Please see Figure 1-12 The present invention provides a circular connector male head, comprising a first housing 1 and a second housing 2 detachably connected. The first housing 1 is detachably connected to an intermediate housing 3. The second housing 2 is sleeved on the outside of the intermediate housing 3. The intermediate housing 3 integrates multiple sets of pins. It also includes: a core 4, which is detachably installed in the intermediate housing 3. Multiple first mounting areas and at least one assembly mounting area are arranged circumferentially on its outer side. The first mounting areas are used for the independent installation of the first set of pins. A sleeve 5, which is detachably installed in the assembly mounting area, is divided into multiple second mounting areas for the independent installation of the second set of pins. The sleeve 5 is divided into multiple third mounting areas for the independent installation of the third set of pins within the assembly mounting area.

[0038] Compared with the prior art, the circular connector male head proposed in this embodiment of the invention gathers multiple sets of pins together by setting a core body 4. The first set of pins is independently installed in the first mounting area on the core body 4, the second set of pins is independently installed in the second mounting area formed by the internal partition of the housing 5, and the third set of pins is independently installed in the third mounting area separated by the housing 5. Furthermore, the core body 4 can be removed from the intermediate housing 3, and the intermediate housing 3 can be removed from the first housing 1 and the second housing 2. This allows each pin in each set of pins to have its own mounting area, which not only satisfies the mutual isolation between the pins, but also allows the pins in each set to be arranged in a modular manner, which facilitates the troubleshooting and independent maintenance and replacement of specific pins.

[0039] Specifically, the intermediate housing 3 is made of insulating material; the intermediate housing 3 is approximately a cylindrical structure, with one end connected to the first housing 1 open and the other end closed, but with through holes on the closed end face corresponding to each pin. The second housing 2 is tightly fitted onto the outer wall of the intermediate housing 3 at least away from the first housing 1. The multiple sets of pins include at least a first set of pins, a second set of pins, and a third set of pins, each set corresponding to a different model or function. The core assembly 4 enters and exits from the open end of the intermediate housing 3; the core assembly 4 is made of insulating material, and all circumferential end faces of the core assembly 4 are on the same cylindrical surface, the outer diameter of which matches the inner diameter of the intermediate housing 3, ensuring that the core assembly 4 is tightly installed inside the intermediate housing 3, maintaining the spatial stability of each first mounting area and the assembly mounting area. The outer wall of the assembly sleeve 5 is provided with axially extending ribs to separate each third mounting area; the assembly sleeve 5 is made of insulating material. Each installation area has a snap-fit ​​structure on its inner wall for installing pins. The snap-fit ​​structure is an elastic protrusion with a slot formed on the inner side of the elastic protrusion. The pin has a cylindrical rod that matches the slot. The pin can be detachably installed in the designated installation area by means of elastic snap-fit. In addition, the elastic protrusion is not limited to being integrally injection molded with the inner wall of the installation area, but can also be an independently set metal spring or rubber elastic ring, which can be fixed to the inner wall of the installation area by embedding or bonding.

[0040] As a preferred technical solution of this embodiment, one end of the first housing 1 is provided with an arc-shaped base 6 that is adapted to the inner cavity of the second housing 2. The second housing 2 is sleeved on the arc-shaped base 6 and then connected to the first housing 1 by bolts 7. Specifically, the outer diameter of the arc-shaped base 6 is adapted to the inner diameter of the inner cavity of the second housing 2; the inner diameter of the arc-shaped base 6 is adapted to the outer diameter of the middle housing 3 at least away from the second housing 2; a sealing ring is provided on the outer wall of the arc-shaped base 6 near the joint between the first housing 1 and the second housing 2; preferably, the end of the second housing 2 that is joined to the first housing 1 is provided with an extension that covers the first housing 1, and the bolts 7 connect the extension to the first housing 1.

[0041] As a preferred technical solution of this embodiment, the two ends of the arc base 6 are provided with first slots 8, and the outer wall of the intermediate shell 3 is provided with first blocks 9 that are adapted to the first slots 8. Specifically, the first slots 8 are arranged along the axial direction perpendicular to the arc base 6, and the first blocks 9 are provided on two opposite sides of the intermediate shell 3, corresponding one-to-one with the first slots 8. The end of the first block 9 away from the installation direction between it and the first slot 8 is provided with a limiting part arranged along the axial direction of the intermediate shell 3. When the intermediate shell 3 is installed by inserting the first blocks 9 into the first slots 8, the limiting part abuts against the two ends of the arc base 6 to restrict the rotation of the intermediate shell 3 relative to the arc base 6. Preferably, the arc range of the arc base 6 is set to 190°-200° and has a certain elasticity. When the intermediate shell 3 is inserted into the arc base 6, the arc base 6 plays an elastic holding and limiting role on the intermediate shell 3.

[0042] As a preferred technical solution of this embodiment, the outer wall of the core 4 is provided with an elastic lever 10, and a locking block 11 is provided on the elastic lever 10. The intermediate housing 3 is provided with a locking hole 12 that matches the locking block 11. Specifically, the extension direction of the elastic lever 10 is opposite to the installation direction of the core 4 into the intermediate housing 3. The locking block 11 is provided near the extension end of the elastic lever 10. The locking block 11 is provided with a slope. During the process of the core 4 entering the intermediate housing 3, the slope on the locking block 11 is wedge-shaped and squeezed into the inner wall of the intermediate housing 3, so as not to affect the entry of the core 4 into the intermediate housing 3. After the core 4 enters the intermediate housing 3, the locking block 11 corresponds to the locking hole 12. Under the elastic restoring force of the elastic lever 10, the locking block 11 is automatically embedded in the locking hole 12, so that the core 4 is limited in the intermediate housing 3. Preferably, the length of the elastic lever 10 extends out of the intermediate housing 3 after the core 4 enters the intermediate housing 3; when disassembling the core 4, one end of the elastic lever 10 extending out of the intermediate housing 3 is actively pressed to disengage the locking block 11 from the locking hole 12, and then the core 4 is pulled to easily disassemble it from the intermediate housing 3; in addition, the limiting structure between the core 4 and the intermediate housing 3 is not limited to the above embodiment of the elastic lever 10, and other structures that can realize the position limiting between the cylindrical structure and the core structure can also be used instead of the above embodiments.

[0043] As a preferred embodiment, the assembly sleeve 5 is axially detachably connected to a bundle body 13. Multiple second mounting areas are arranged circumferentially on the outer side of the bundle body 13. Specifically, the outer wall of the assembly sleeve 5 is provided with opposing second locking blocks 22, and the inner wall of the mounting area is provided with a second locking groove 23 adapted to the second locking blocks 22. The second locking blocks 22 are arranged in a direction perpendicular to the axial direction of the assembly sleeve 5. The second locking blocks 22 and the second locking groove 23 define the mounting position of the assembly sleeve 5 within the mounting area. The outer side of the mounting area is surrounded by the assembly core 4 after being installed into the intermediate housing 3, thus limiting its position on the outer side of the assembly sleeve 5. A third locking block 24 is provided on the bundle body 13, and a third locking groove 25 adapted to the third locking block 24 is provided on the assembly sleeve 5. The third locking block 24 is arranged in a direction parallel to the axial direction of the bundle body 13. The third locking block 24 and the third locking groove 25 limit the axial rotation of the bundle body 13 relative to the assembly sleeve 5. This also restricts the axial relative movement between the two; the bundle body 13 is made of insulating material; the circumferential end faces of the bundle body 13 are on the same cylindrical surface, and the outer diameter of the cylindrical surface is adapted to the inner diameter of the collection sleeve 5, ensuring that the bundle body 13 is tightly installed in the collection sleeve 5 and maintaining the stability of the space of each second installation area; the bundle body 13 is provided with a fourth locking block 26 extending outward along its axial direction, and the collection core 4 is provided with a fourth locking groove 27 adapted to the fourth locking block 26. When the collection sleeve 5 is installed in the collection safety area, the fourth locking block 26 is simultaneously inserted into the fourth locking groove 27, thereby further limiting the axial relative movement and relative rotation between the collection sleeve 5 and the bundle body 13 as a whole and the collection installation area. In addition, during the disassembly process, the fourth locking block 26 can be operated to easily remove the collection sleeve 5 and the bundle body 13 as a whole from the collection installation area. Afterward, the fourth locking block 26 can be operated in reverse to easily remove the bundle body 13 from the collection sleeve 5.

[0044] In another embodiment of the present invention, a grounding component is detachably installed on the intermediate housing 3. The grounding component makes conductive contact with the first housing 1 and the second housing 2 inside the first housing 1 and the second housing 2, so that the first housing 1 and the second housing 2 form a shielding shell at least internally. Specifically, the detachable function of the grounding component is adapted to the modular design of each set of pins inside the connector, giving the connector a modular quality as a whole, facilitating independent maintenance and replacement of each part, and facilitating quick restoration of device function. The conductive contact of the grounding component inside the first housing 1 and the second housing 2 ensures the integrity of the housing and keeps all pins within the same range. Preferably, the first housing 1 and the second housing 2 can be made of metal, such as zinc alloy or copper-zinc alloy, or a zinc alloy layer can be plated on the inner wall of the first housing 1 and the second housing 2 at 360°. Other parts of the first housing 1 and the second housing 2 are made of insulating material. The shielding shell formed inside the first housing 1 and the second housing 2 makes the entire connector shell form a complete Faraday cage, which can effectively shield external electromagnetic interference (EMI) and prevent the connector itself from becoming a source of electromagnetic noise radiation. Grounding the casing can promptly conduct away static charges generated by friction or other reasons, effectively suppressing the generation and accumulation of static electricity and protecting the internal precision circuits from damage caused by electrostatic discharge (ESD).

[0045] As a preferred embodiment, the grounding assembly includes a grounding ring 14 and a grounding pin 15. The grounding ring 14 is detachably connected to the intermediate housing 3, and the grounding pin 15 is detachably connected to the grounding ring 14 and inserted into the intermediate housing 3. The grounding pin 15 makes conductive contact with the first housing 1 and the second housing 2 through the grounding ring 14. Specifically, the grounding ring 14 can be an elastic clamping ring, which is clamped to the outer wall of the intermediate housing 3 by elastic clamping force for easy disassembly. The grounding ring 14 can also be a splicing ring, which is detachably connected to the outer wall of the intermediate housing 3 by splicing two semi-circular rings. In addition, the grounding ring 14 can also be a hinged clamping structure, etc. Any ring or incomplete ring structure that is easy to disassemble and install on a cylindrical structure can be used as an optional embodiment in this solution. Both the grounding ring 14 and the grounding pin 15 are made of conductive materials. After installation, the grounding ring 14 and the grounding pin 15 are in close contact, and the grounding ring 14 is in close contact with the inner walls of the first housing 1 and the second housing 2.

[0046] As a preferred embodiment, the grounding pin 15 is configured to be parallel to the axes of all groups of pins and located within the rotating shape of the intermediate housing 3, along with all groups of pins. Specifically, the position of the grounding pin 15 is defined to integrate it with the other groups of pins into the same circular pin area, maintaining the characteristics of a circular connector and avoiding any special shape design for the connector housing. Furthermore, the grounding pin 15 is longer than the other pins, ensuring that the grounding circuit is connected first and then disconnected during insertion and removal, guaranteeing that the entire connection process is performed under grounding protection and avoiding high-voltage impacts from hot-plugging.

[0047] As a preferred embodiment, the grounding ring 14 is provided with at least one inwardly bent first spring piece 20 and at least one outwardly bent second spring piece 21. The first spring piece 20 is in conductive contact with the first housing 1, and the second spring piece 21 is in conductive contact with the second housing 2. Specifically, after the intermediate housing 3 is installed inside the first housing 1 and the second housing 2, the grounding ring 14 located on the outer wall of the intermediate housing 3, through the bending direction of the spring pieces, just makes the first spring piece 20 tightly embedded in the gap between the first housing 1 and the intermediate housing 3. Furthermore, the first spring piece 20 is in close contact with the first housing 1, and the second spring piece 21 is also just made to be tightly embedded in the gap between the second housing 2 and the intermediate housing 3. Furthermore, the second spring piece 21 is in close contact with the second housing 2. The second spring 21 allows the grounding ring 14 to form multiple good contacts with the connector housing, providing an ample ground return path and eliminating the need for intermediate conductors, such as additional solder tabs or metal expansion rings, used in traditional designs to connect the grounding pin 15 and the housing. This reliably avoids grounding loop interruptions caused by poor soldering or loose components in traditional grounding methods. The grounding pin 15 is externally positioned on the outside of the intermediate housing 3 and indirectly contacts the first housing 1 and the second housing 2 directly through the grounding ring 14, greatly reducing the grounding path and making the entire connector housing form a complete Faraday cage. Furthermore, the reduced grounding path provides an extremely short and low-impedance discharge path for interference current on the shielding layer, ensuring that interference energy is quickly conducted to the ground instead of wandering around in the system.

[0048] As a preferred embodiment, the intermediate housing 3 is provided with a recessed portion 16 adapted to the first mounting area. The grounding pin 15 is disposed within the recessed portion 16. Specifically, the recessed portion 16 fits against the inner wall of the first mounting area, and the recessed portion 16 can assist in positioning the assembly core 4 for installation into the intermediate housing 3. Preferably, the recessed portion 16 is also provided with a snap-fit ​​structure similar to that in other mounting areas to fix the grounding pin 15 and limit the axial movement of the grounding pin 15. The first locking block 9 on one side of the intermediate housing 3 is disposed away from the area of ​​the recessed portion 16. Preferably, the length of the first locking block 9 on the side adjacent to the recessed portion 16 is reduced.

[0049] As a preferred embodiment, the grounding ring 14 is provided with a torsion portion 19 adapted to the recessed portion 16. The grounding pin 15 is embedded in the torsion portion 19 and axially positioned. Specifically, a break section is provided in the middle of the torsion portion 19 to adapt to the snap-fit ​​structure in the recessed portion 16; or, a snap-fit ​​structure with a reduced inner diameter adapted to the grounding pin 15 is formed in the break section to replace the snap-fit ​​structure on the recessed portion 16 to fix the grounding pin 15. In actual installation, the elastic clamp is first fitted onto the intermediate housing 3, and then the grounding pin 15 is installed.

[0050] As a preferred technical solution of this embodiment, the intermediate housing 3 is provided with a through hole 17 for the grounding pin 15 to pass through. The two ends of the through hole 17 are composed of staggered inclined portions 18. Specifically, when the grounding pin 15 is installed on the intermediate housing 3, the pin tip is first passed through the through hole 17, and then the position where the pin tip passes through the through hole 17 is used as the rotation point to make the pin tail move closer to the inside of the concave portion 16 until it is embedded in the concave portion 16. The inclined portion 18 on the side adjacent to the concave portion 16 is inclined in a direction that aims to make the length of the through hole 17 formed by the end adjacent to the inner side of the concave portion 16 longer, while the inclined portion 18 on the other side is inclined in the opposite direction, thereby adapting to the installation and disassembly process of the grounding pin 15.

[0051] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A circular connector male head, characterized in that, It includes a detachably connected first housing (1) and a second housing (2), the first housing (1) being detachably connected to an intermediate housing (3), the second housing (2) being sleeved on the outside of the intermediate housing (3), the intermediate housing (3) integrating multiple sets of pins, and also includes: The core (4) is detachably installed inside the intermediate housing (3). Multiple first mounting areas and at least one assembly mounting area are arranged circumferentially on its outer side. The first mounting areas are used for the independent installation of the first set of pins. The assembly sleeve (5) is detachably installed in the assembly installation area, which is divided into multiple second installation areas for the independent installation of the second group of pins. The assembly sleeve (5) is divided into multiple third installation areas for the independent installation of the third group of pins in the assembly installation area.

2. The male circular connector according to claim 1, characterized in that, A grounding component is detachably installed on the intermediate housing (3). The grounding component is in conductive contact with the first housing (1) and the second housing (2) inside the first housing (1) and the second housing (2) so that the first housing (1) and the second housing (2) form a shielding shell at least inside.

3. The male circular connector according to claim 2, characterized in that, The grounding assembly includes a grounding ring (14) and a grounding pin (15). The grounding ring (14) is detachably connected to the intermediate housing (3). The grounding pin (15) is detachably connected to the grounding ring (14) and inserted into the intermediate housing (3). The grounding pin (15) makes conductive contact with the first housing (1) and the second housing (2) through the grounding ring (14).

4. The male circular connector according to claim 3, characterized in that, The grounding pin (15) is restricted to being parallel to the axis of each group of pins and located inside the rotating body pattern of the intermediate housing (3) along with each group of pins.

5. The male circular connector according to claim 4, characterized in that, The grounding ring (14) is provided with at least one inwardly bent first spring piece (20) and at least one outwardly bent second spring piece (21). The first spring piece (20) is in conductive contact with the first housing (1), and the second spring piece (21) is in conductive contact with the second housing (2).

6. The male circular connector according to claim 5, characterized in that, The intermediate housing (3) is provided with a recess (16) adapted to the first installation area, and the grounding pin (15) is provided in the recess (16).

7. The male circular connector according to claim 6, characterized in that, The grounding ring (14) is provided with a torsion part (19) that is adapted to the concave part (16), and the grounding pin (15) is embedded in the torsion part (19) and is axially positioned.

8. The male circular connector according to claim 3, characterized in that, The intermediate housing (3) is provided with a through hole (17) through which the grounding pin (15) passes, and the two ends of the through hole (17) are composed of staggered inclined portions (18).

9. The male circular connector according to claim 1, characterized in that, One end of the first housing (1) is provided with an arc base (6) that is adapted to the inner cavity of the second housing (2). The second housing (2) is fitted onto the arc base (6) and then connected to the first housing (1) by bolts (7).

10. The male circular connector according to claim 9, characterized in that, The arc base (6) has first slots (8) at both ends in the circumferential direction, and the outer wall of the intermediate shell (3) is provided with a first block (9) that matches the first slots (8).

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