Male head mechanism and circular connector using same
By setting the snap-on part and shrapnel in the male head mechanism, the relative displacement of the outer shell is limited and connected to the female head mechanism through the quick lock assembly, the problem of unstable connection between the male head mechanism and the female head mechanism in the existing circular connector is solved, and higher connection stability and transmission quality are achieved.
Patent Information
- Application Number
- CN202421001141.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The inner and outer shells of the male head mechanism in the existing circular connectors are prone to relative displacement, resulting in difficult alignment when connected to the mother seat mechanism, especially in environments such as vibration, which leads to interruption of the connection transmission of power, signal and data.
A male head mechanism is designed to limit the relative displacement of the outer shell by providing a snap member and a shrapnel in the male head housing assembly, and connect it to the female head mechanism through a quick lock assembly to ensure stable alignment between the male head mechanism and the female head mechanism.
It effectively avoids the problem of male mechanism being separated from the motherboard mechanism during use, and improves the stability of the connection and the transmission quality of power supply, signal and data.
Smart Images
Figure CN222601644U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of connectors, and in particular relates to a male head mechanism, a female seat mechanism and a circular connector using the same. Background Art
[0002] Circular connectors are a type of connector with a cylindrical basic structure and a circular mating surface. The circular structure has higher strength than any other shape. Circular connectors originated from the military equipment manufacturing industry in the last century, and then gradually extended to the civilian field, providing power, signal and data connection transmission for various equipment and systems. They are currently widely used in military, aviation, medical, industrial and other fields.
[0003] In existing circular connectors, relative displacement easily occurs between the inner shell and the outer shell of the male mechanism, which makes it difficult to align it with the female mechanism when connected. It is easy to detach from the female mechanism when used for a long time in a vibration environment, resulting in interruption of power, signal and data connection and transmission. Summary of the invention
[0004] In view of this, the purpose of the utility model is to provide a male head mechanism, which solves the problem that relative displacement is easily generated between the inner shell and the outer shell of the male head mechanism in the existing circular connector, resulting in difficulty in alignment when connected with the female socket mechanism, and easy separation from the female socket mechanism when used for a long time in an environment such as vibration, resulting in interruption of the connection and transmission of power, signals and data.
[0005] The utility model also aims to provide a female seat mechanism matched with the male head mechanism.
[0006] The utility model also aims to provide a circular connector using the male head mechanism and the female seat mechanism.
[0007] In order to achieve the above-mentioned purpose, the first technical solution of the utility model is implemented as follows: a male head mechanism, including a male head shell assembly and a male head terminal assembly arranged in the male head shell assembly, the male head shell assembly includes a locking piece, an inner shell and an outer shell sleeved on the inner shell, the locking piece is arranged between the outer shell and the inner shell, and is used to limit the outer shell.
[0008] Furthermore, the retaining member is annular in shape, is sleeved on the inner shell body, and a spring sheet is circumferentially arranged on one side of the retaining member close to the outer shell body, and the spring sheet abuts against an inner wall of the outer shell body.
[0009] Furthermore, there are at least two spring sheets, and at least two of the spring sheets are circumferentially arranged along one side of the outer shell.
[0010] Furthermore, the male terminal assembly includes a first male insulator, a second male insulator and a male terminal, the first male insulator and the second male insulator are arranged in the inner shell, and the male terminal is inserted into the first male insulator and the second male insulator.
[0011] Furthermore, a positioning platform is provided on the inner wall of the inner shell, a wire clamp assembly is provided at one end of the inner shell, and first positioning protrusions are provided on the outer walls of the first male insulator and the second male insulator on the side close to each other, and two first positioning protrusions are clamped between the positioning platform and the wire clamp assembly.
[0012] The second technical solution of the utility model is implemented as follows: a socket mechanism, including a socket shell and a socket terminal assembly arranged in the socket shell, the socket terminal assembly includes a first socket insulator, a second socket insulator and a socket terminal, the first socket insulator and the second socket insulator are arranged in the socket shell, and the socket terminal is inserted into the first socket insulator and the second socket insulator.
[0013] Furthermore, a clamping ring and a positioning boss are provided on the inner wall of the female socket shell, and second positioning bosses are provided on the outer walls of the first female socket insulator and the second female socket insulator on the side close to each other, and two second positioning bosses are clamped between the clamping ring and the positioning boss.
[0014] The third technical solution of the utility model is implemented as follows: a circular connector includes the above-mentioned male head mechanism, the above-mentioned female seat mechanism and a quick lock assembly, and the male head shell assembly in the male head mechanism is connected with the female seat shell in the female seat mechanism through the quick lock assembly.
[0015] Furthermore, a latching groove is provided on the female socket housing, and a latching piece matching with the latching groove is provided on the male head housing assembly, and the latching groove and the latching piece constitute the quick lock assembly.
[0016] Furthermore, the positioning boss is arranged in the female seat shell at one end close to the male head mechanism, and when the clamping member is connected with the clamping groove, the end of the inner shell abuts against the positioning boss.
[0017] Furthermore, the outer side wall of the inner shell is provided with a plurality of positioning grooves extending axially along the inner shell, and the inner side wall of the outer shell is provided with a plurality of positioning pieces matching the positioning grooves, one end of the positioning piece extends to the outside of the outer shell, and a clamp is provided at the end.
[0018] Compared with the prior art, the utility model has the following beneficial effects: the male head mechanism protects the male terminal assembly by setting a male head shell assembly to prevent the male terminal assembly from being damaged, and the outer shell is connected to the outside of the inner shell by a locking piece to prevent the outer shell from circumferentially offset relative to the inner shell, so that the male head mechanism is easy to align with the female seat mechanism during use, and the outer shell will not produce axial movement under vibration and other environments, and the connection stability with the inner shell and the female seat mechanism is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is an overall schematic diagram of the male head mechanism provided by the utility model;
[0020] Figure 2 An exploded view of the male head mechanism provided by the utility model;
[0021] Figure 3 This is an overall schematic diagram of the female seat mechanism provided by the utility model;
[0022] Figure 4 An exploded view of the female seat mechanism provided by the utility model;
[0023] Figure 5 This is an overall schematic diagram of the circular connector provided by the utility model;
[0024] Figure 6 This is a cross-sectional view of the circular connector provided by the utility model.
[0025] In the figure, 1-male mechanism, 11-male housing assembly, 111-inner housing, 1111-positioning platform, 1112-positioning groove, 112-locking member, 1121-spring, 113-outer housing, 1131-positioning member, 12-male terminal assembly, 121-first male insulator, 1211-first positioning protrusion, 122-second male insulator, 123-male terminal;
[0026] 2- female seat mechanism, 21- female seat housing, 22- female seat terminal assembly, 221- first female seat insulator, 2211- second positioning protrusion, 222- second female seat insulator, 223- female seat terminal, 23- clamping ring, 24- positioning boss;
[0027] 3-quick lock assembly, 31-card slot, 32-card piece. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0029] In the description of the present utility model, it should be clarified that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal" and the like indicating 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 the present utility model, and do not mean that the device or element referred to must have a specific orientation or position, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Example
[0030] like Figure 1 , Figure 2 As shown, the male mechanism provided in this embodiment includes a male housing assembly 11 and a male terminal assembly 12 arranged in the male housing assembly 11, the male housing assembly 11 includes a locking member 112, an inner housing 111 and an outer housing 113 sleeved on the inner housing 111, the locking member 112 is arranged between the outer housing 113 and the inner housing 111, and is used to limit the outer housing 113.
[0031] The male mechanism protects the male terminal assembly 12 by setting a male housing assembly 11 to prevent the male terminal assembly 12 from being damaged, provides installation space for the outer housing 113 and the male terminal assembly 12 through the inner housing 111, and connects the outer housing 113 to the outside of the inner housing 111 through the locking member 112 to prevent the outer housing 113 from circumferentially offset relative to the inner housing 111, so that the male mechanism 1 can be easily aligned with the female seat mechanism 2 during use, and the outer housing 113 will not produce axial movement under vibration and other environments, and has good connection stability with the inner housing 111 and the female seat mechanism 2.
[0032] In some embodiments of the present application, the retaining member 112 is annular, is sleeved on the inner shell 111, and a spring piece 1121 is circumferentially provided on one side of the retaining member 112 close to the outer shell 113, and the spring piece 1121 abuts against the inner wall of the outer shell 113.
[0033] In some embodiments of the present application, there are at least two elastic sheets 1121 , and at least two elastic sheets 1121 are circumferentially arranged along one side of the outer shell 113 .
[0034] When this embodiment is in use, the locking member 112 is sleeved on the outside of the inner shell body 111, one side of a plurality of spring pieces 1121 is fixed to the locking member 112, and the other end has a certain gap with the surface of the locking member 112, and can bounce around the connection with the locking member 112; when the outer shell body 113 is sleeved on the inner shell body 111, the spring pieces 1121 extend outward and abut against the inner side of the outer shell body 113, limiting the outer shell body 113 and preventing the outer shell body 113 from axial movement and circumferential displacement relative to the inner shell body 111.
[0035] In some embodiments of the present application, the male terminal assembly 12 includes a first male insulator 121, a second male insulator 122 and a male terminal 123, the first male insulator 121 and the second male insulator 122 are arranged in the inner shell 111, and the male terminal 123 is inserted into the first male insulator 121 and the second male insulator 122.
[0036] When in use, one end of the male mechanism 1 is connected to the female socket mechanism 2, and the other end is connected to a structure such as a cable. The first male insulator 121 and the second male insulator 122 are provided to flexibly adjust the insulation performance of the two ends of the male mechanism 1 to meet the use requirements of different equipment and systems.
[0037] By setting the first male insulator 121 and the second male insulator 122, one or more male terminals 123 can be arranged according to the required position and spacing without tilting during use, thereby avoiding current leakage and crosstalk between the multiple male terminals 123 and between the male terminals 123 and the male housing assembly 11, thereby ensuring the transmission quality of power, signals and data.
[0038] In some embodiments of the present application, a positioning platform 1111 is provided on the inner wall of the inner shell 111, a wire clamp assembly is provided at one end of the inner shell 111, and first positioning protrusions 1211 are provided on the outer walls of the sides where the first male insulator 121 and the second male insulator 122 are close to each other, and two first positioning protrusions 1211 are clamped between the positioning platform 1111 and the wire clamp assembly.
[0039] In this embodiment, the inner wall of the inner shell 111 is recessed in a direction away from its axis to form a positioning platform 1111; one side of a first positioning protrusion 1211 on the outer wall of the first male insulator 121 abuts against the positioning platform 1111, and the other side abuts against one side of the first positioning protrusion 1211 on the outer wall of the second male insulator 122; the other side of the first positioning protrusion 1211 on the outer wall of the second male insulator 122 abuts against the wire clamp assembly; the axial positions of the first male insulator 121 and the second male insulator 122 are limited by the positioning platform 1111, and then the male terminal 123 inserted therein is limited, so as to avoid the male terminal 123 from being separated from the female socket mechanism 2 when used in a working environment such as vibration, thereby ensuring the stable connection between the male mechanism 1 and the female socket mechanism 2.
[0040] Specifically, the wire clamp assembly includes a wire clamp and a nut. One end of the wire clamp extends into the inner shell body 111 and abuts against the first positioning protrusion 1211 on the outer wall of the second male insulator 122. The other end of the wire clamp is circumferentially provided with a plurality of clamping plates that can shrink toward the axis of the inner shell body 111. The end and the outer edge of the clamping plate are connected to the nut, and the nut is also threadedly connected to the outer side of the inner shell body 111. When in use, the nut is threadedly connected to the inner shell body 111. During this process, the nut pushes the clamping plate at the end of the wire clamp to shrink toward the axis of the inner shell body 111, clamping the cable passing therein, preventing the cable from being separated from the male terminal 123 under the action of external force, thereby ensuring the stability of power supply, signal and data transmission.
[0041] A protective ring is also provided on the male head mechanism 1, which is specifically arranged between the inner shell 111 and the wire clamp to prevent water vapor or dust from entering the circular connector from the cable end, thereby ensuring the use effect of the circular connector. Example
[0042] like Figure 3 , Figure 4 As shown, the female socket mechanism provided in this embodiment includes a female socket shell 21 and a female socket terminal assembly 22 arranged in the female socket shell 21, the female socket terminal assembly 22 includes a first female socket insulator 221, a second female socket insulator 222 and a female socket terminal 223, the first female socket insulator 221 and the second female socket insulator 222 are arranged in the female socket shell 21, and the female socket terminal 223 is penetrated in the first female socket insulator 221 and the second female socket insulator 222.
[0043] This embodiment provides installation space for the first female socket insulator 221, the second female socket insulator 222 and the female socket terminal 223 through the female socket shell 21, thereby ensuring that the internal parts of the female socket mechanism 2 are not damaged; the female socket shell 21 and the female socket terminal 223 are connected through the first female socket insulator 221 and the second female socket insulator 222. When the number of the female socket terminals 223 is one or more, the first female socket insulator 221 and the second female socket insulator 222 can arrange each female socket terminal 223 at the required position and spacing, and will not tilt during use, thereby ensuring the stability of its connection with the male terminal 123 in the male head mechanism 1, and can also promote the existence of gaps between the multiple female socket terminals 223, and there is no current leakage and crosstalk between the multiple female socket terminals 223 and between the female socket terminals 223 and the female socket shell 21, thereby ensuring the transmission quality of power, signals and data.
[0044] By providing the first mother seat insulator 221 and the second mother seat insulator 222 , it is convenient to adjust the insulation performance of both ends of the mother seat mechanism 2 to meet the use requirements of different equipment and systems.
[0045] In some embodiments of the present application, a retaining ring 23 and a positioning boss 24 are provided on the inner wall of the female socket shell 21, and a second positioning boss 2211 is provided on the outer wall of the side where the first female socket insulator 221 and the second female socket insulator 222 are close to each other, and the two second positioning bosses 2211 are clamped between the retaining ring 23 and the positioning boss 24.
[0046] This embodiment limits the axial position of the first female insulator 221 and the second female insulator 222 by means of the retaining ring 23 and the positioning boss 24, so as to avoid axial displacement of the first female insulator 221 and the second female insulator 222 relative to the female housing 21 under vibration or other use environments, so that the female terminals 223 inserted in the first female insulator 221 and the second female insulator 222 are stably connected to the male terminals 123, thereby ensuring the stability of power supply, signal and data transmission.
[0047] In some embodiments of the present application, an external thread is provided on the outer side of the female socket shell 21, and two nuts are threadedly connected to facilitate installation of the female socket shell 21 on the housing of the device.
[0048] The female socket mechanism 2 is also provided with an inner protective ring and an outer protective ring. The outer protective ring is arranged between two nuts. When the female socket shell 21 is inserted into the device casing, the outer protective ring abuts against the device casing; the inner protective ring is arranged on the inner side of the female socket shell 21. When the male head mechanism 1 is connected to the female socket shell 21, the outer side of the inner shell 111 abuts against the inner protective ring to prevent water vapor, dust, etc. from entering, thereby ensuring the use effect of the circular connector. Example
[0049] like Figure 5 As shown, the circular connector provided in this embodiment includes the male head mechanism 1 described in Example 1, the female seat mechanism 2 and the quick lock assembly 3 described in Example 2, and the male head shell assembly 11 in the male head mechanism 1 is connected with the female seat shell 21 in the female seat mechanism 2 through the quick lock assembly 3.
[0050] When the circular connector is in use, the power, signal and data connection and transmission between various devices and systems are realized by plugging the female terminal 223 and the male terminal 123 together, and the female housing 21 is connected to the male housing assembly 11 through the quick lock assembly 3 to ensure that the female terminal 223 and the male terminal 123 are firmly connected to avoid transmission interruption caused by detachment in a working environment such as vibration, thereby ensuring the stability of power, signal and data transmission and facilitating disassembly and assembly.
[0051] like Figure 6 As shown, in some embodiments of the present application, a latching groove 31 is provided on the female socket shell 21, and a latching member 32 matching with the latching groove 31 is provided on the male head shell assembly 11, and the latching groove 31 and the latching member 32 constitute the quick lock assembly 3.
[0052] This embodiment achieves quick disassembly and assembly of the female housing 21 and the male housing assembly 11 by withdrawing the clamping member 32 or clamping it in the clamping slot 31, thereby preventing the male terminal 123 and the female terminal 223 from being separated under vibration or other usage environments, thereby improving the stability of the connection between the male mechanism 1 and the female mechanism 2 and the transmission quality of power, signals and data.
[0053] In some embodiments of the present application, a positioning boss 24 is disposed in the female socket shell 21 at one end close to the male head mechanism 1 , and when the clamping member 32 is engaged with the clamping groove 31 , the end of the inner shell 111 abuts against the positioning boss 24 .
[0054] This embodiment limits the depth of the inner shell 111 extending into the female socket shell 21 through the positioning boss 24, ensuring that the user can accurately engage the clamp 32 in the clamping groove 31 in the case of blind insertion, thereby improving the loading and unloading efficiency of the male head mechanism 1 and the female socket mechanism 2.
[0055] In some embodiments of the present application, the outer wall of the inner shell 111 is provided with a plurality of positioning grooves 1112 extending axially along the inner shell 111, and the inner wall of the outer shell 113 is provided with a plurality of positioning members 1131 matching the positioning grooves 1112, one end of the positioning member 1131 extends to the outside of the outer shell 113, and a clamp 32 is provided at the end.
[0056] In this embodiment, the positioning groove 1112 and the positioning member 1131 are provided to limit the circumference of the outer shell 113 and the inner shell 111 , so as to prevent the inner shell 111 from rotating relative to the outer shell 113 .
[0057] In some embodiments of the present application, the inner wall of the female socket shell 21 is provided with a guide groove, and the outer wall of the inner shell 111 is provided with a guide block that matches the guide groove, or the inner wall of the female socket shell 21 is provided with a guide block, and the outer wall of the inner shell 111 is provided with a guide groove that matches the guide block; by providing the guide groove and the guide block, the efficiency of the plugging between the male head mechanism 1 and the female socket mechanism 2 can be improved, and poor transmission quality caused by inaccurate plugging of the male terminal 123 and the female socket terminal 223 during blind plugging can be avoided.
[0058] In some embodiments of the present application, the female terminal 223 and the male terminal 123 are solid cylindrical structures machined or hollow cylindrical structures punched and rounded; preferably, the female terminal 223 and the male terminal 123 are hollow cylindrical structures punched and rounded.
[0059] Currently, a turning process is commonly used to prepare the cylindrical female terminal 223 and the male terminal 123. The equipment cost required for the preparation process is high and the preparation time is long. During assembly, the female terminal 223 needs to be manually inserted into the female housing 21 and the male terminal 123 needs to be manually inserted into the male housing assembly 11. The assembly cost is high and the time is long. However, if mechanical assembly is adopted, the surface of the female terminal 223 and the male terminal 123 will be scratched when the robot clamps the female terminal 223 and the male terminal 123, causing unnecessary losses.
[0060] In this embodiment, the unfolded parts of the female terminal 223 and the male terminal 123 are manufactured on the plate by a stamping process, and the unfolded parts are manufactured into the female terminal 223 and the male terminal 123 in the shape of a hollow cylinder by a rounding process, which can save consumables, and the manufacturing process is simple, low-cost, and short in time. The prepared female terminal 223 and the male terminal 123 are connected through the plate. During assembly, the female terminal 223 is sequentially placed in the first female insulator 221 and the second female insulator 222 by clamping the plate connection and rotating the plate, and the male terminal 123 is sequentially placed in the first male insulator 121 and the second male insulator 122, and then the female terminals 223 and the male terminals 123 connected through the plate are separated. This process can be operated mechanically without causing any loss, thereby improving the efficiency of assembly and reducing losses.
[0061] The method of using the circular connector provided in this embodiment is as follows:
[0062] When in use, the female socket shell 21 in the female socket mechanism 2 is passed through the device casing, and the female socket shells 21 on both sides of the device casing are respectively threaded with nuts to fix the female socket shells 21 to the device casing. The male head shell assembly 11 in the male head mechanism 1 is connected to the female socket shell 21, and the end of the inner shell 111 abuts against the positioning boss 24 on the inner side of the female socket shell 21. The clamping piece 32 on the outer shell 113 is clamped in the clamping groove 31 on the inner side of the female socket shell 21. The female socket terminal 223 is plugged into the male terminal 123 to realize the connection and transmission of power, signal and data. During this process, the clamping groove 31 and the clamping piece 32 are easy to disassemble and assemble, and can ensure the stability of the connection between the female socket mechanism 2 and the male head mechanism 1, avoid its detachment under vibration and other usage environments, and ensure the connection and transmission effect.
[0063] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A male connector mechanism, comprising a male connector housing assembly (11) and a male connector terminal assembly (12) arranged in the male connector housing assembly (11), characterized in that: The male housing assembly (11) comprises a retaining member (112), an inner housing (111), and an outer housing (113) sleeved on the inner housing (111); the retaining member (112) is arranged between the outer housing (113) and the inner housing (111) and is used to limit the position of the outer housing (113); The retaining member (112) is annular in shape, and is sleeved on the inner shell (111). At least two spring pieces (1121) are circumferentially arranged on one side of the retaining member (112) close to the outer shell (113). At least two of the spring pieces (1121) are in contact with the inner wall of the outer shell (113), and at least two of the spring pieces (1121) are circumferentially arranged along one side of the outer shell (113).
2. A male head mechanism according to claim 1, characterized in that: The male terminal assembly (12) comprises a first male insulator (121), a second male insulator (122) and a male terminal (123); the first male insulator (121) and the second male insulator (122) are arranged in the inner housing (111); and the male terminal (123) is inserted into the first male insulator (121) and the second male insulator (122).
3. A male head mechanism according to claim 2, characterized in that: A positioning platform (1111) is provided on the inner wall of the inner shell (111), a wire clamp assembly is provided on one end of the inner shell (111), and first positioning protrusions (1211) are provided on the outer walls of the first male insulator (121) and the second male insulator (122) on a side close to each other, and two first positioning protrusions (1211) are clamped between the positioning platform (1111) and the wire clamp assembly.
4. A circular connector, characterized in that: The invention comprises a female socket mechanism (2), a quick lock assembly (3) and a male head mechanism (1) according to any one of claims 1 to 3, wherein the female socket mechanism (2) comprises a female socket shell (21) and a female socket terminal assembly (22) arranged in the female socket shell (21), the female socket terminal assembly (22) comprises a first female socket insulator (221), a second female socket insulator (222) and a female socket terminal (223), the first female socket insulator (221) and the second female socket insulator (222) are arranged in the female socket shell (21), and the female socket terminal (223) is inserted into the first female socket insulator (221) and the second female socket insulator (222); The male housing component (11) in the male mechanism (1) is connected in cooperation with the female housing (21) in the female mechanism (2) via a quick lock component (3).
5. A circular connector according to claim 4, characterized in that: The female socket housing (21) is provided with a latching groove (31), the male housing assembly (11) is provided with a latching member (32) that matches the latching groove (31), and the latching groove (31) and the latching member (32) constitute the quick lock assembly (3).
6. A circular connector according to claim 5, characterized in that: A positioning boss (24) is provided on the inner wall of the female seat shell (21) at one end close to the male head mechanism (1), and when the clamping member (32) is engaged with the clamping groove (31), the end of the inner shell (111) abuts against the positioning boss (24).
7. A circular connector according to claim 6, characterized in that: A clamping ring (23) is provided on the inner wall of the female base shell (21), and second positioning protrusions (2211) are provided on the outer walls of the first female base insulator (221) and the second female base insulator (222) on the side close to each other, and the two second positioning protrusions (2211) are clamped between the clamping ring (23) and the positioning boss (24).