Connector

Abstract

The utility model relates to a connector. The connector comprises a circumferential positioning piece, a first shell and a second shell. The circumferential positioning piece at least comprises a positioning rod. The first shell is provided with two opposite ends, and the two ends of the first shell communicate with each other. The second shell is provided with two opposite ends, and one end of the second shell is in threaded fit with one end of the first shell. One of the second shell and the first shell is provided with a first surface and a concave position which is concave relative to the first surface. And the other one of the second shell and the first shell is provided with a second surface and is movably connected with a positioning rod. Under the condition that the positioning rod is inserted into the concave position in the axial direction, the circumferential relative angle between the first shell and the second shell is locked, so that the first shell and the second shell are prevented from rotating in the loosening direction, and the first shell and the second shell are kept at the positions tightly attached to the sealing piece respectively; and external liquid is prevented from flowing into the connector through the gap between the first shell and the second shell.

Description

Technical Field

[0001] This application relates to the field of connection device technology, and in particular to a connector. Background Technology

[0002] Connectors are devices used to enable electrical connections between different devices. The application of connectors improves the efficiency of electrical connections between different devices and is currently widely used in the automotive, communications, consumer electronics, data processing, and industrial machinery industries.

[0003] Connectors generally consist of a housing, an insulator, and conductive terminals. The insulator and conductive terminals are respectively installed inside the housing. To facilitate the assembly of the insulator and conductive terminals, the housing is generally divided into two parts. The two parts of the housing are connected by threads. When the two parts of the housing are screwed into place, a seal will abut against the gap between the two parts, preventing liquid from entering the connector from the gap and avoiding short-circuit contact between the internal conductive terminals due to liquid.

[0004] Then, during the use of the connector, the two parts of the housing may rotate in the direction of loosening, causing the two sides of the seal to fail to fit tightly against the two parts of the housing respectively, posing a risk that liquid may flow into the inside of the connector through the gap. Utility Model Content

[0005] Based on this, the present invention provides a connector that can solve or at least alleviate the above-mentioned technical problems.

[0006] This utility model provides a connector, comprising:

[0007] Circumferential positioning components, including at least positioning rods;

[0008] A first housing having two opposing ends connected in communication between the two ends; and

[0009] The second housing has two opposing ends, one end of which is threadedly engaged with one end of the first housing. One of the second housings and one of the first housings has a first surface and a recessed area opposite to the first surface. The other of the second housings and the first housing has a second surface and a movably connected positioning rod. Under elastic force, the positioning rod has a retracted position and a free position relative to the other of the second housings and the first housing. In the free position, the positioning rod protrudes relative to the second surface. The first surface and the second surface are axially opposite each other. When the second housing and the first housing reach a predetermined threaded engagement depth, the recessed area corresponds to the circumferential position of the positioning rod, and the positioning rod in the free position is inserted into the recessed area axially.

[0010] In this connector, when the second housing and the first housing reach a predetermined threaded engagement depth, the positioning rod reaches a position corresponding to the recess in the circumferential direction. The recess provides space for the positioning rod to extend, thereby allowing the positioning rod to switch to a free position and be inserted into the recess. When the positioning rod is inserted into the recess axially, the relative circumferential angle between the first housing and the second housing is locked, preventing them from rotating in the direction of loosening. This keeps the first housing and the second housing in a position tightly against the seal, preventing external liquid from flowing into the connector through the gaps between the first housing and the second housing.

[0011] In one embodiment, the outer peripheral side of the second housing and one of the first housings has a first boss portion that protrudes radially; when the second housing and the first housing reach a predetermined thread engagement depth, one side of the first boss portion is axially opposite to the second surface, and the first surface and the recess are disposed on one side of the first boss portion.

[0012] In one embodiment, at least one edge region along the circumferential direction of one side of the first boss portion forms a curved surface or slope.

[0013] In one embodiment, the end of the positioning rod used for insertion into the recess is formed with a curved or inclined surface for contacting the edge region.

[0014] In one embodiment, the outer peripheral side of the second housing and the other of the first housings has a second boss portion that protrudes radially; when the second housing and the first housing reach a predetermined thread engagement depth, one side of the second boss portion is axially opposite to the first surface, and the second surface and the positioning rod are disposed on one side of the second boss portion.

[0015] In one embodiment, the circumferential positioning member further includes a base shell and an elastic member housed in the base shell; one end of the positioning rod is movably inserted into the base shell; the elastic member abuts between the base shell and the positioning rod; the base shell is connected to the other of the second shell and the first shell.

[0016] In one embodiment, the second housing and the other of the first housing are provided with a groove; when the second housing and the first housing reach a predetermined threaded engagement depth, the opening of the groove faces the recess; the base housing is accommodated in the groove.

[0017] In one embodiment, the second housing and another of the first housings are further provided with a through hole communicating with the groove; the through hole is located on the side of the groove opposite to the positioning rod.

[0018] In one embodiment, the first housing has a slot at one end away from the second housing; the recess is disposed in the first housing; the slot and the recess are connected and configured to communicate.

[0019] In one embodiment, a seal is further included; the seal abuts circumferentially between the outer peripheral surface of the first housing and the inner peripheral surface of the second housing. Attached Figure Description

[0020] Figure 1 This is a perspective view of a connector according to an embodiment of this application.

[0021] Figure 2 for Figure 1 An exploded view of the connector is shown.

[0022] Figure 3 for Figure 1 The connector shown is an exploded view from another angle.

[0023] Figure 4 for Figure 1 The connector shown is a three-dimensional sectional view.

[0024] Figure 5 This is a perspective view of the first housing of a connector according to an embodiment of this application.

[0025] Figure 6 for Figure 4 A three-dimensional schematic diagram of the second housing in the connector shown.

[0026] Figure 7 This is a cross-sectional structural diagram of the circumferential positioning member of a connector according to an embodiment of this application.

[0027] Reference numerals: 100, connector; 20, circumferential positioning element; 21, positioning rod; 22, base shell; 23, elastic element; 30, first housing; 301, first surface; 302, recess; 31, first boss portion; 311, bayonet; 312, hook-shaped structure; 313, edge region; 32, first cylindrical portion; 33, convex ring portion; 34, second cylindrical portion; 40, second housing; 401, second surface; 402, groove; 41, second boss portion; 42, through hole; 43, annular groove; 431, annular surface; 432, peripheral wall surface; 50, seal; 60, insulation element; 70, conductive terminal; F1, axial direction. Detailed Implementation

[0028] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] The technical solutions provided by the embodiments of this application are described below with reference to the accompanying drawings.

[0032] Combination Figure 1 and Figure 2 As shown, this application provides a connector 100. In some embodiments, the connector 100 is used to secure the end of an electrical cable. In some embodiments, the connector 100 is used to mate with a socket. A portion of the connector 100 is received within the socket along the insertion direction of the connector 100. In some embodiments, the mating between the connector 100 and the socket is used to enable the transmission of electrical energy or electrical signals.

[0033] In some other embodiments, the connector 100 of this application can also be used to mate with other connectors 100.

[0034] For example, the connector 100 of this application can be a male plug or a female plug.

[0035] For example, an electrical cable may include an insulation layer and a plurality of conductor cores within the insulation layer.

[0036] In some implementations, combined Figures 2 to 4 As shown, the connector 100 includes a circumferential positioning member 20, a first housing 30, and a second housing 40. The circumferential positioning member 20 includes at least a positioning rod 21. The first housing 30 has two opposing ends, which are connected in communication. The second housing 40 has two opposing ends, one end of which is threadedly engaged with one end of the first housing 30. One of the second housing 40 and the first housing 30 has a first surface 301 and a recess 302 that is recessed relative to the first surface 301. The other of the second housing 40 and the first housing 30 has a second surface 401 and is movably connected to the positioning rod 21. Under the action of an elastic force, the positioning rod 21 has a retracted position and a free position relative to the other of the second housing 40 and the first housing 30. In the free position, the positioning rod 21 protrudes relative to the second surface 401, and the first surface 301 and the second surface 401 are disposed opposite each other along the axial direction F1. When the second housing 40 and the first housing 30 reach the predetermined thread engagement depth, the recess 302 corresponds to the circumferential position of the positioning rod 21, and the positioning rod 21 in the free position is inserted into the recess 302 along the axial direction F1.

[0037] In the connector 100 of this application, one end of the second housing 40 forms a threaded engagement with one end of the first housing 30 along the axial direction F1.

[0038] The positioning rod 21 is movable between a retracted position and a free position. Exemplarily, there is an elastic force between the positioning rod 21 and other components of the circumferential positioning member 20, or an elastic force between the positioning rod 21 and one of the housings, allowing the positioning rod 21 to automatically move to the free position under the action of the elastic force. When the positioning rod 21 is not subjected to other external forces, it is in the free position. When the positioning rod 21 is subjected to the abutment action of the first surface 301, it is correspondingly in the retracted position.

[0039] The first surface 301 and the second surface 401 are disposed opposite each other along the axial direction F1. The recess 302 is recessed relative to the first surface 301 in a direction away from the second surface 401. The positioning rod 21, in a free position, protrudes relative to the second surface 401 in a direction toward the first surface 301.

[0040] Before the second housing 40 and the first housing 30 reach the predetermined threaded engagement depth, the positioning rod 21 has not reached the position corresponding to the recess 302. At this time, the positioning rod 21 is abutted by the first surface 301, causing the positioning rod 21 to be in the retracted position. Relative to the free position, the positioning rod 21 protrudes slightly relative to the second surface 401 in the retracted position, or does not protrude relative to the second surface 401 at all, and the positioning rod 21 retracts to a greater extent into the other interior of the second housing 40 and the first housing 30.

[0041] When the second housing 40 and the first housing 30 reach the predetermined thread engagement depth, the positioning rod 21 reaches the corresponding position of the recess 302 in the circumferential direction. The recess 302 provides space for the positioning rod 21 to extend, thereby allowing the positioning rod 21 to switch to a free position and be inserted into the recess 302. When the positioning rod 21 is inserted into the recess 302 along the axial direction F1, the relative circumferential angle between the first housing 30 and the second housing 40 is locked, thereby preventing them from rotating in the direction of loosening. This keeps the first housing 30 and the second housing 40 in a position that is in close contact with the seal, preventing external liquid from flowing into the connector 100 through the gaps between the first housing 30 and the second housing 40.

[0042] Optionally, combined Figure 1 and Figure 4 As shown, when the second housing 40 and the first housing 30 reach a predetermined thread engagement depth, the first surface 301 and the second surface 401 are approximately fitted together, or the axial distance F1 between the first surface 301 and the second surface 401 is small.

[0043] Optionally, the first surface 301 is a plane. Optionally, the first surface 301 can also be a curved surface with a large radius of curvature. Exemplarily, the first surface 301 is arranged relatively parallel to the circumferential direction. Exemplarily, the first surface 301 can also be arranged slightly inclined relative to the circumferential direction.

[0044] Optionally, the second surface 401 is a plane. Optionally, the second surface 401 can also be a curved surface with a large radius of curvature.

[0045] Optionally, the end of the first housing 30 located away from the second housing 40 is used for mating with a socket. Optionally, the end of the first housing 30 located away from the second housing 40 is used for mating with other connectors 100.

[0046] For example, the first surface 301 surrounds the outer periphery of the recess 302.

[0047] In some implementations, combined Figure 3 and Figure 4 As shown, connector 100 also includes a seal 50. The seal 50 abuts circumferentially between the first housing 30 and the second housing 40. Understandably, the seal 50 is flexible to accommodate the shape of the gap between the first housing 30 and the second housing 40.

[0048] In some implementations, combined Figure 3 and Figure 4 As shown, the connector 100 also includes an insulating member 60 and a plurality of conductive terminals 70 fixedly inserted into the insulating member 60. One end of the conductive terminal 70 is used for electrical connection to the conductor core of an electrical cable. Exemplarily, the electrical cable passes through the other end of the second housing 40.

[0049] Understandably, the other end of the conductive terminal 70 is used to form a conductive contact with a socket or another connector 100.

[0050] For example, the insulating member 60 is positioned and received within the first housing 30. Alternatively, the insulating member 60 is snap-fitted into the first housing 30.

[0051] In some implementations, combined Figure 4 and Figure 5 As shown, one of the outer peripheral sides of the second housing 40 and the first housing 30 has a radially protruding first boss portion 31. When the second housing 40 and the first housing 30 reach a predetermined threaded engagement depth, one side of the first boss portion 31 faces the second surface 401 along the axial direction F1, and the first surface 301 and the recess 302 are disposed on this side of the first boss portion 31. Understandably, the first boss portion 31 has a relatively large radial thickness, which helps to increase the inner diameter of the recess 302, facilitates the engagement of the positioning rod 21 with a relatively large outer diameter, and ensures the stability of the first housing 30 and the second housing 40 during circumferential locking. At the same time, providing the first boss portion 31 can ensure the wall thickness of the outer circumference of the recess 302 and improve structural stability.

[0052] For example, the first boss portion 31 is disposed on the outer peripheral side of the first housing 30. Understandably, the first boss portion 31 is provided radially relative to other outer peripheral areas of the first housing 30.

[0053] In some other embodiments, the first housing 30 may also be a generally cylindrical structure, that is, the first boss 31 is not provided on the outer periphery of the first housing 30.

[0054] For example, the first boss portion 31 is disposed on the outer peripheral side of the second housing 40.

[0055] In some implementations, combined Figure 5 As shown, on the side of the first boss portion 31 opposite to the second surface 401 along the axial direction F1, this side of the first boss portion 31 has two corresponding edge regions 313 along the circumferential direction. Exemplarily, the edge regions 313 are arranged adjacent to the first surface 301. Exemplarily, the edges of the edge regions 313 are tangential to the edges of the first surface 301. Along the spiral tightening direction between the first housing 30 and the second housing 40, before reaching a predetermined thread engagement depth, after the positioning rod 21 passes through one of the edge regions 313 circumferentially, the positioning rod 21 is in a retracted position due to the abutment of the first surface 301. This one edge region 313 forms a curved surface or an inclined surface.

[0056] Understandably, when the edge region 313 forms a curved or inclined surface, the axial distance F1 between the edge region 313 and the second surface 401 also decreases along the direction of decreasing arc interval between the edge region 313 and the recess 302. As a result, when one end of the positioning rod 21 contacts the edge region 313, the edge region 313 can guide the positioning rod 21 to move to the retracted position, avoiding the need to manually push the positioning rod 21 from the free position to the retracted position, thus improving the convenience of assembling the connector 100.

[0057] In other embodiments, combined with Figure 3 As shown, on the side of the first boss portion 31 opposite to the second surface 401 along the axial direction F1, the two ends of this side of the first boss portion 31 transition at approximately right angles in the circumferential direction. Exemplarily, this side of the first boss portion 31 is formed almost entirely of the first surface 301, without any edge regions that are curved or inclined.

[0058] In some implementations, combined Figure 1 and Figure 4 As shown, the first housing 30 has a latch 311 at the end away from the second housing 40. Optionally, the latch 311 is used for insertion of a socket. Exemplarily, the first housing 30 forms a hook-shaped structure 312 inside the latch 311. After the socket's latch is inserted into the latch, the latch of the socket and the hook-shaped structure 312 form a locking engagement, thereby preventing the connector 100 from separating from the socket. Optionally, the latch 311 is used for insertion of another connector 100 to prevent the two mating connectors 100 from separating.

[0059] In some implementations, combined Figure 4 As shown, a recess 302 is provided in the first housing 30. A bayonet 311 is connected to the recess 302. Understandably, the bayonet 311 and the recess 302 cooperate to form a structure penetrating the first housing 30. When the connector 100 is not mated with the socket, by inserting a rod-shaped tool into the bayonet 311, the rod-shaped tool can push against the positioning rod 21 in the recess 302, causing the positioning rod 21 to retract from the recess 302. After the positioning rod 21 retracts from the recess 302, the first housing 30 and the second housing 40 can be spirally rotated in the loosening direction, achieving spiral separation between the first housing 30 and the second housing 40.

[0060] Understandably, when the connector 100 is mated with the socket, the end of the first housing 30 with the bayonet 311 is covered by the socket. At this time, the rod-shaped tool cannot be inserted through the bayonet 311. Understandably, when the connector 100 is mated with the socket, the connector 100 and the socket may be energized. Since the positioning rod 21 cannot be pushed by the rod-shaped tool at this time, it prevents the user from improperly separating the first housing 30 from the second housing 40, preventing the live conductive terminal 70 from being exposed outside the first housing 30 or the second housing 40, and eliminating the possibility of electric shock.

[0061] Optionally, when the first housing 30 is provided with a first boss 31, the first boss 31 defines all or part of the boundary of the bayonet 311.

[0062] In some implementations, combined Figure 3 and Figure 4 As shown, the seal 50 abuts circumferentially between the outer peripheral surface of the first housing 30 and the inner peripheral surface of the second housing 40.

[0063] Optionally, combined Figure 4 and Figure 5 As shown, the first housing 30 includes a first cylindrical portion 32, a convex ring portion 33, and a second cylindrical portion 34 connected sequentially along the axial direction F1. The outer periphery of the second cylindrical portion 34 is provided with threads, and the second cylindrical portion 34 is used to thread through one end of the second housing 40.

[0064] For example, combined Figure 4 As shown, the sealing member 50 is sleeved on the outer peripheral side of the second cylindrical portion 34. Exemplarily, the first surface 301 is provided on the side of the protruding ring portion 33 near the second cylindrical portion 34.

[0065] For example, combined Figure 4 and Figure 5 As shown, for one end of the second housing 40 used for insertion into the second cylindrical portion 34, the second housing 40 has an annular groove 43 on its inner circumferential side at that end. The second housing 40 defines the annular groove 43 by an annular surface 431 and a peripheral wall surface 432. The outer periphery of the annular surface 431 and the peripheral wall surface 432 form a stepped transition. The annular surface 431 faces the first housing 30 along the axial direction F1. When the second housing 40 and the first housing 30 reach a predetermined threaded engagement depth, the sealing member 50 abuts circumferentially between the peripheral wall surface 432 and the second cylindrical portion 34, and the sealing member 50 is positioned axially between the convex ring portion 33 and the annular surface 431.

[0066] In some other embodiments, the recess 302 may also be a blind hole structure.

[0067] In some implementations, combined Figure 4 and Figure 5As shown, the end of the positioning rod 21 used for insertion into the recess 302 is formed with a curved or inclined surface for contacting the edge region 313. This increases the contact area between the positioning rod 21 and the edge region 313 when they come into contact, preventing the positioning rod 21 from getting stuck due to excessive pressure. This allows the edge region 313 of the first protrusion 31 to push the positioning rod 21 to the retracted position more smoothly.

[0068] For example, the end face of the positioning rod 21 used for insertion into the recess 302 is beveled. When the positioning rod 21 comes into contact with the edge region 313, the bevel is generally parallel to all or part of the edge region 313.

[0069] For example, the end face of the positioning rod 21 used for insertion into the recess 302 is a hemispherical surface.

[0070] For example, the end of the positioning rod 21 used for insertion into the recess 302 has a rounded corner transition on the outer periphery of its end face.

[0071] For example, the end of the positioning rod 21 used for insertion into the recess 302 has a chamfered outer periphery.

[0072] Understandably, when the positioning rod 21 is inserted into the recess 302, the outer peripheral surface of the positioning rod 21 and the inner peripheral surface of the recess 302 abut against each other, thereby suppressing relative rotation between the first housing 30 and the second housing 40. Optionally, at least a portion of the outer peripheral surface of the positioning rod 21 is parallel to the axial direction F1. Exemplarily, the outer peripheral surface of the positioning rod 21 is cylindrical.

[0073] Optionally, the positioning rod 21 is movably inserted into the second housing 40.

[0074] In some embodiments, the circumferential positioning member 20 further includes an elastic member 23. The elastic member 23 generates an elastic force on the positioning rod 21, allowing the positioning rod 21 to automatically move to a free position under the action of the elastic force. Optionally, the elastic member 23 abuts against the positioning rod 21 and the second housing 40. Exemplarily, the elastic member 23 is a compression spring. When the positioning rod 21 is in the free position, the elastic member 23 is not compressed or only slightly compressed. When the positioning rod 21 is in the retracted position, the elastic member 23 has a greater degree of compression.

[0075] In some implementations, combined Figure 5As shown, the circumferential positioning component 20 also includes a base shell 22. An elastic element 23 is housed within the base shell 22. One end of the positioning rod 21 is movably inserted into the base shell 22. The elastic element 23 abuts against the base shell 22 and the positioning rod 21. The base shell 22 is connected to the other of the second housing 40 and the first housing 30. Understandably, the base shell 22, the elastic element 23, and the positioning rod 21 form a pre-assembled structural component, thereby simplifying the assembly process.

[0076] In some other embodiments, where the circumferential positioning member 20 does not include the elastic member 23, another of the second housing 40 and the first housing 30 may be provided with a spring plate portion, which has shape memory properties. The spring plate portion abuts against the positioning rod 21, generating an elastic force on the positioning rod 21, allowing the positioning rod 21 to automatically move to a free position under the action of the elastic force.

[0077] For example, the second housing 40 is formed with a spring piece portion, and the end of the positioning rod 21 away from the recess 302 abuts against the spring piece portion.

[0078] In some implementations, combined Figure 4 and Figure 5 As shown, the outer periphery of the second housing 40 and the other of the first housing 30 has a radially protruding second boss 41. When the second housing 40 and the first housing 30 reach a predetermined threaded engagement depth, one side of the second boss 41 faces the first surface 301 along the axial direction F1, and the second surface 401 and the positioning rod 21 are disposed on one side of the second boss 41. Understandably, the second boss 41 has a relatively large radial thickness, thereby providing sufficient accommodating space for the positioning rod 21 with a large outer diameter, while providing complete enclosure of the positioning rod 21 from the outer periphery, and providing possible limiting effect for the positioning rod 21.

[0079] For example, the second boss portion 41 is disposed on the outer peripheral side of the second housing 40, and understandably, the second boss portion 41 protrudes radially relative to other outer peripheral regions of the second housing 40. For example, the second boss portion 41 is disposed on the outer peripheral side of the first housing 30.

[0080] In some other embodiments, the second housing 40 may also be a generally cylindrical structure, that is, the second boss 41 is not provided on the outer peripheral side of the second housing 40.

[0081] For example, a first boss 31 is disposed on the outer peripheral side of the first housing 30, and a second boss 41 is disposed on the outer peripheral side of the second housing 40. When the second housing 40 and the first housing 30 reach a predetermined thread engagement depth, the first boss 31 and the second boss 41 are positioned circumferentially opposite each other. Understandably, one side of the first boss 31 and one side of the second boss 41 are disposed opposite each other along the axial direction F1.

[0082] In some implementations, combined Figure 2 and Figure 6 As shown, the second housing 40 and the first housing 30 each have a groove 402. When the second housing 40 and the first housing 30 reach a predetermined threaded engagement depth, the opening of the groove 402 faces the recess 302. The base housing 22 is accommodated in the groove 402, thereby defining the position of the base housing 22.

[0083] Optionally, a groove 402 is provided in the second housing 40. For example, the groove 402 is provided on one side of the second boss portion 41.

[0084] In other embodiments, the base shell 22 may also be held in a fixed position relative to the second shell 40 by other means. Exemplarily, the base shell 22 is bonded to the second shell 40. Exemplarily, the base shell 22 is welded to the second shell 40. Exemplarily, the base shell 22 is snap-fitted to the second shell 40.

[0085] Optionally, the inner diameter of the groove 402 corresponds to the outer diameter of the base shell 22. For example, the inner circumferential surface of the groove 402 is provided with an interference fit with the outer circumferential surface of the base shell 22 to prevent the base shell 22 from falling out of the groove 402.

[0086] For example, the second surface 401 surrounds the outer periphery of the groove 402.

[0087] Understandably, when there is an abnormality in the internal structure of the base shell 22, the positioning rod 21 may not be able to retract into the base shell 22. During the production inspection process, if an abnormality in the movement of the positioning rod 21 is found, it may be necessary to completely disassemble and replace the circumferential positioning component 20.

[0088] In some implementations, combined Figure 4 and Figure 5 As shown, the second housing 40 and the first housing 30 are also provided with a through hole 42 communicating with the groove 402. The through hole 42 is provided on the side of the groove 402 opposite to the positioning rod 21. Understandably, the groove 402 has an opening, and the through hole 42 is located on the side opposite to the opening of the groove 402. By passing a rod-shaped tool through the through hole 42, the rod-shaped tool can exert a pushing force on the base housing 22, causing the circumferential positioning member 20 to be pushed out from the opening of the groove 402, thereby enabling the replacement of the circumferential positioning member 20.

[0089] The above embodiments are merely preferred embodiments of this application and are not intended to limit the scope of this application. Any modifications and improvements made by those skilled in the art to the technical solutions of this application without departing from the spirit of this application should fall within the protection scope defined by the claims of this application.

Claims

1. A connector, characterized in that, include: Circumferential positioning components, including at least positioning rods; A first housing has two opposing ends connected to each other; and The second housing has two opposing ends, one end of which is threadedly engaged with one end of the first housing. One of the second housings and one of the first housings has a first surface and a recessed area opposite to the first surface. The other of the second housings and the first housing has a second surface and a movably connected positioning rod. Under elastic force, the positioning rod has a retracted position and a free position relative to the other of the second housings and the first housing. In the free position, the positioning rod protrudes relative to the second surface. The first surface and the second surface are axially opposite each other. When the second housing and the first housing reach a predetermined threaded engagement depth, the recessed area corresponds to the circumferential position of the positioning rod, and the positioning rod in the free position is inserted into the recessed area axially.

2. The connector according to claim 1, characterized in that, The second housing and one of the first housings have a first boss portion that protrudes radially on their outer peripheral side; when the second housing and the first housing reach a predetermined thread engagement depth, one side of the first boss portion is axially opposite to the second surface, and the first surface and the recess are disposed on one side of the first boss portion.

3. The connector according to claim 2, characterized in that, At least one edge region along the circumferential direction on one side of the first boss portion forms a curved surface or slope.

4. The connector according to claim 3, characterized in that, The end of the positioning rod that is inserted into the recess has a curved or inclined surface for contacting the edge region.

5. The connector according to claim 1, characterized in that, The outer periphery of the second housing and the other of the first housings has a second boss portion that protrudes radially; when the second housing and the first housing reach a predetermined thread engagement depth, one side of the second boss portion is axially opposite to the first surface, and the second surface and the positioning rod are disposed on one side of the second boss portion.

6. The connector according to claim 1, characterized in that, The circumferential positioning component further includes a base shell and an elastic element housed in the base shell; one end of the positioning rod is movably inserted into the base shell; the elastic element abuts against the base shell and the positioning rod; the base shell is connected to the other of the second shell and the first shell.

7. The connector according to claim 6, characterized in that, The second housing and the other of the first housings are provided with a groove; when the second housing and the first housing reach a predetermined threaded engagement depth, the opening of the groove faces the recess; the base housing is accommodated in the groove.

8. The connector according to claim 7, characterized in that, The second housing and another of the first housings are also provided with a through hole communicating with the groove; the through hole is located on the side of the groove opposite to the positioning rod.

9. The connector according to claim 1, characterized in that, The first housing has a slot at one end away from the second housing; the recess is provided in the first housing; the slot and the recess are connected.

10. The connector according to claim 1, characterized in that, It also includes a seal; the seal abuts circumferentially between the outer circumferential surface of the first housing and the inner circumferential surface of the second housing.

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