Plug of connector and connector

Abstract

A matching structure of a latch mechanism and a shell in the plug is improved, when the plug is used, for example, after the plug is in butt joint with a socket, a convex part in the latch mechanism enters a lock groove at the socket to lock the plug and the socket, and when the plug is pulled backwards relative to the socket, the shell moves relative to a body to lock the plug and the socket. The part, lower than the cantilever, of the limiting part moves to the radial deformation path of the cantilever, so that radial deformation of the cantilever is limited, the protruding part cannot be separated from the self-locking groove synchronously, the part, higher than the cantilever, of the limiting part abuts against the cantilever, backward movement of the shell is limited under supporting of the cantilever, and connection of the plug and the socket is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to connecting device technical field, concretely relates to the plug of connector and connector. BACKGROUND

[0002] The connector such as including plug and socket matched, the plug and socket butt joint make internal contact to contact to power on, the current market M12 round connector mainly with thread lock connection as the main, this traditional connection technology when using, usually need to use spanner to tighten locking, pass through the control torque and determine whether to be twisted tight, installation consumes long time, and is not favorable to small space bare-handed or tool installation.

[0003] For this, the market appears push and pull locking type connector, such as the push and pull locking type connector that Phoenix promotes installs cantilever and protruding block at the plug, the protruding block is at the end of cantileve, the lock slot is formed at the cavity mouth wall of socket, when the plug and socket butt joint, the protruding block enters the lock slot at the cavity mouth wall of socket under the elastic reset force of cantilever, and then makes the plug and socket lock, when unlocking, exerts force and pulls out the plug, the structure is convenient for plug-in installation, but the connection of plug and socket is unstable, the plug is easy to separate from socket by external force, and needs to be improved. SUMMARY

[0004] To solve at least one of the above technical defects, the utility model provides the following technical scheme:

[0005] The first aspect of the patent document discloses a plug of connector, which comprises a cylindrical shell, a latch mechanism and a contact mechanism at the cavity of the shell, the contact mechanism is used for electrical connection, the latch mechanism comprises a body and a cantilever connected to the body, an outwardly protruding protruding portion is arranged on the cantilever, the protruding portion moves in the radial direction of the shell to enter or leave the lock slot at the socket of the connector through the elastic deformation of the cantilever in the radial direction of the shell, the body is slidingly connected to the shell in the axial direction of the shell, the protruding portion enters or leaves the lock slot at the socket of the connector in the sliding process of the body, a limiting portion is arranged at the peripheral wall of the shell in front of the cantilever, the part adjacent to the cantilever in the limiting portion is lower than the cantilever in the radial direction of the shell, and the part away from the cantilever is higher than the cantilever in the radial direction of the shell, when the shell moves backward relative to the body, the part lower than the cantilever in the limiting portion is in the path of radial elastic deformation of the cantilever to limit the deformation, and the movement of the protruding portion is limited, the cantilever abuts against the part higher than the cantilever in the limiting portion to limit the backward movement of the shell in the axial direction.

[0006] In use, after the plug is connected with the socket, the convex part in the latching mechanism enters the locking groove at the socket to lock the plug and the socket. When the plug is pulled backward relative to the socket, the shell moves relative to the body, the part of the limiting part below the cantilever moves to the path of radial deformation of the cantilever, thereby limiting the radial deformation of the cantilever, and at the same time, the convex part cannot be separated from the locking groove. The part of the limiting part above the cantilever abuts against the cantilever, and the cantilever supports the shell to limit the backward movement of the shell, so that the connection between the plug and the socket is more stable.

[0007] In unlocking, the body is first moved backward relative to the shell, the part of the limiting part below the cantilever cannot limit the radial deformation of the cantilever, and then the convex part moves to separate from the locking groove. At this time, the plug can be moved backward to separate from the socket.

[0008] Further, the body is elastically and slidably connected with the shell in the axial direction. The elastic and sliding connection can reset the body in time, which is convenient for subsequent connection with the socket.

[0009] Further, the body is slidably connected with the shell and an elastic member is arranged between the body and the shell to reset the body. The body and the shell are elastically and slidably connected through the elastic member. The design of resetting the body by the elastic member helps to simplify the structure and facilitate assembly. For the elastic member, a common spring can be used, and other elastic plastic materials such as column, strip or ring can also be used as the elastic member.

[0010] Further, the body is cylindrical, and the body is sleeved on the end of the shell. The sleeved installation is convenient for assembly and helps to simplify the structure and reduce the cost.

[0011] Further, an external thread is arranged on the peripheral wall of the end of the shell in front of the latching mechanism and is threadedly connected with the connector socket. The threaded connection and plug-in locking are integrated, which is convenient for selection according to the needs.

[0012] For the shell, a common cylindrical body made of insulating material can be used, and a shielding mechanism such as a copper shielding tube can also be added according to the needs. Preferably, the shell adopts the following structure:

[0013] Further, the shell comprises a cylindrical body, a shielding tube and a sleeve. The cylindrical body is sleeved and fixed on the shielding tube. The shielding tube is provided with a contact mechanism in the cavity. The leading end of the insulator of the contact mechanism is arranged outside the shielding tube, and the sleeve is sleeved and arranged at the leading end of the insulator. The body in the latching mechanism is slidably connected with the leading end of the shielding tube. The limiting part is arranged on the peripheral wall of the sleeve in front of the cantilever.

[0014] The configuration of the multi-part assembled shell facilitates the installation of the contact mechanism, and the parts can be replaced according to the needs, which helps to reduce the subsequent maintenance cost. The shielding tube helps to improve the shielding performance, and the sleeved installation of the sleeve and the insulator helps to improve the assembly speed.

[0015] Further, a ring groove is arranged at the circumferential wall of the front end of the shielding tube, the cylindrical body is sleeved on the front end of the shielding tube and is elastically and slidably connected with the shell in the axial direction through the elastic member arranged in the ring groove, the arrangement of the elastic member in the ring groove facilitates assembly and simplifies the connecting structure of the body.

[0016] Further, a clamping spring for limiting is arranged at the circumferential wall of the sleeve in front of the limiting portion, and an external thread for screwing with the connector socket is arranged at the circumferential wall of the sleeve in front of the clamping spring, and the clamping spring helps to further improve the stability of the plug and the socket.

[0017] The second aspect of the patent document discloses a connector comprising the plug and the socket matched with the plug, a locking groove matched with the convex part of the latching mechanism is arranged at the cavity wall of the end cavity of the socket, and the convex part enters or leaves the locking groove of the socket through radial movement, so that the barrel and the socket are in the locked or unlocked state. The connection between the plug and the socket in the connector is more stable.

[0018] Further, an internal thread matched with the threaded connection of the shell end of the plug is arranged at the cavity wall of the socket rear the locking groove, so that the threaded connection and the plug-in locking are integrated, and the use is facilitated.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model improves the matching relationship between the latching mechanism and the shell of the plug, and further improves the stability of the plug and the socket in the connector. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is the plug structure schematic view of the connector in embodiment 1.

[0023] Figure 2 It is the plug cross section structure schematic view of the connector in embodiment 1.

[0024] Figure 3 It is the structure schematic view of the latching mechanism.

[0025] Figure 4 It is the structure schematic view of the sleeve.

[0026] Figure 5 It is the cross section structure schematic view of the plug and the socket connection in the connector.

[0027] Figure 6 This is a schematic diagram of the structure when the protrusion has not entered the lock groove;

[0028] Figure 7 This is a schematic diagram of the structure when the protrusion enters the lock groove;

[0029] The attached figures are labeled as follows:

[0030] 1. Plug; 2. Latch mechanism; 3. Socket; 21. Body; 22. Cantilever; 23. Protrusion; 24. Elastic element; 31. Locking groove; 32. Internal thread; 100. Cylinder; 101. Sleeve; 102. Insulator; 103. Limiting part; 104. Snap ring; 105. Ring groove; 106. Insulator; 107. Contact; 108. Shielding tube; 109. Head end; 110. External thread; 221. Bottom surface of cantilever. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] like Figure 5 As shown, this connector includes a plug 1 and a socket 3 that are mated together. The plug 1 includes a cylindrical housing, a latching mechanism 2, and a contact mechanism located in the housing cavity. The contact mechanism is used for electrical connection. The contact mechanism is a common type, such as an insulator 102 covering a contact 107. The contact 107 is like a pin or a socket. Pins commonly protrude outward from the end of the insulator. As for the socket, the socket configuration can be selected according to requirements. The contact mechanism inside the socket must meet the mating requirements with the contact mechanism in the plug, and a locking groove is formed at the cavity wall of the socket end to mate with the latching mechanism.

[0034] For cylindrical shells, various construction methods are possible, including integral molding with insulating material, left-right split assembly, front-back split assembly, or multi-segment split assembly. This example demonstrates a multi-segment split assembly, with a shielding tube added to improve shielding performance. Of course, the shielding tube can be omitted depending on requirements. Specifically... Figure 1 , Figure 2 As shown, the housing includes a cylindrical body 100, a copper shielding tube 108, and a sleeve 101. The cylindrical body 100 is fitted onto and fixed to the shielding tube 108. A contact mechanism is installed in the cavity of the shielding tube 108. The first end of the insulator 102 in the contact mechanism is located outside the end of the shielding tube 108, and the sleeve 101 is fitted onto the first end of the insulator 102.

[0035] The latching mechanism 2 includes a body 21 and a cantilever 22 connected to the body 21, such as Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, the body 21 is slidingly connected at the front end of the shield tube 108, and the shape of the body can be selected according to requirements, such as the body being a rectangular body, a sliding groove being formed at the circumferential wall of the front end of the shield tube, and the body being slidingly connected at the sliding groove. For convenient installation, the body 21 in this case adopts a cylindrical shape, and the body 21 is directly sleeved at the front end of the shield tube 108 and axially slidingly fitted. An overhang 22 is formed at the end face of the body 21, such as a plurality of overhangs 22 being spaced apart along the circumference of the end face of the body. The overhang 22 axially extends, and an outwardly protruding protrusion 23 is arranged on the overhang 22, such as the outwardly protruding protrusion 23 being formed at the end of the overhang 22, and the shape of the protrusion can be selected according to requirements, such as a rectangular block, a cone or other shapes, etc. The overhang 22 can be elastically deformed in the radial direction of the shell, and then the protrusion 23 moves in the radial direction of the shell, and then enters or leaves the locking groove of the socket of the connector. In use, when the protrusion 23 corresponds to the locking groove 31 at the end cavity of the socket 3, the overhang 22 elastically resets, and then the protrusion 23 moves in the radial direction of the shell to enter the locking groove 31 of the socket of the connector, so as to complete the locking of the plug and the socket. When unlocking, the body can be forced to move backward, the protrusion 23 abuts against the groove wall of the locking groove 31, under the action of surface stress, the overhang 22 elastically deforms in the radial direction, and the protrusion 23 synchronously moves in the radial direction to leave the locking groove.

[0036] In this case, a limiting portion is added at the circumferential wall of the shell in front of the overhang 22, such as Figure 1 、 Figure 2 、 Figure 4 As shown, the limiting portion 103 is arranged at the circumferential wall of the sleeve 101, such as the limiting portion 103 being outwardly protruded and formed at the circumferential wall of the sleeve 101. The limiting portion 103 is matched with the overhang 22 one by one, and of course, a plurality of limiting portions are connected to form a ring body (a ring-shaped protrusion is directly outwardly formed at the circumferential wall of the sleeve during forming, and the protrusion is a ring body formed by connecting a plurality of limiting portions, so as to facilitate the matching of the limiting portion and the overhang). The part of the limiting portion 103 adjacent to the overhang 22 is lower than the overhang 22 in the radial direction of the shell, and the part of the limiting portion 103 away from the overhang 22 is higher than the overhang 22 in the radial direction of the shell. Common configurations of the limiting portion include stepped, slope or other configurations, etc. As shown in Figure 2 The limiting portion 103 is in a slope shape, the bottom end of the slope surface facing the overhang is lower than the overhang 22 (such as being lower than the bottom surface 221 of the overhang, Figure 2 The height of the bottom surface 221 of the overhang is indicated by a dashed line), and the top end is higher than the overhang 22 (such as being higher than the bottom surface 221 of the overhang). Because the top end is higher than the overhang, when the shell moves backward relative to the body 21 in the latching mechanism, the overhang 22 abuts against the limiting portion 103 to limit the backward movement of the shell. During the mating process of the plug and the socket, as shown in Figure 6 The protrusion 23 gradually moves forward to the locking groove 31 of the socket, such as Figure 7 、 Figure 5As shown, when the protrusion 23 aligns with the locking groove 31, the cantilever 22 elastically resets, causing the protrusion 23 to enter the locking groove 31. This cantilever restricts the rearward movement of the housing, thereby locking the plug and socket. When the plug is subjected to external force and moves axially backward relative to the socket, the housing moves backward relative to the latching mechanism 2. The bottom end of the slope facing the cantilever 22 of the limiting part 103 is then positioned along the path of the radial elastic deformation of the cantilever 22. Figure 7 In the indicated state, the cantilever 22 is below the cantilever, limiting its elastic deformation. Therefore, the protrusion 23 cannot disengage from the locking groove 31. Simultaneously, the cantilever abuts against the top of the limiting part to restrict its axial backward movement, preventing the plug from disengaging from the socket. When the plug and socket are unlocked, the main body 21 of the latching mechanism 2 needs to be moved backward beforehand. The main body 21 moves axially backward relative to the housing, and the cantilever 22 deforms simultaneously, causing the protrusion 23 to disengage from the locking groove 31. Afterward, the housing can move backward relative to the socket, separating the plug 1 from the socket 3. Alternatively, the cylindrical peripheral wall portion axially rearward of the main body in the latching mechanism can be made to protrude outward to restrict the main body's backward movement away from the cylinder. Of course, the outer diameter of the cylinder can also be made larger than the inner diameter of the main body to restrict the main body's backward movement away from the cylinder. Preferably, a guide groove is formed on the peripheral wall of the sleeve. The guide groove and the cantilever are matched one-to-one. The cantilever is positioned in the corresponding guide groove and moves along the guide groove. The guide groove can restrict the rotation of the main body in the latching mechanism, or allow the sleeve and the main body in the latching mechanism to rotate synchronously relative to the shielding tube.

[0037] Preferably, the body 21 is elastically slidably connected to the housing in the axial direction. For example, the body 21 is slidably connected to the housing and an elastic element 24 for resetting is installed between the body and the housing. The elastic element 24 makes the body 21 elastically slidably connected to the housing. When the plug and socket are plugged in, the protrusion at the cantilever in the latching mechanism can simultaneously enter the locking groove at the socket under the elastic support of the elastic element. When unlocking, the body in the latching mechanism can be moved backward by applying force. After the force is removed, the elastic element causes the body to reset, so as to facilitate the next plug and socket connection.

[0038] For the elastic element, a spring can be used as the elastic element 24, but other elastic plastic materials such as cylinders, strips, or rings can also be used. For the installation of the elastic element, it can be between the end of the body and the peripheral wall of the housing, or between the cavity wall of the body and the peripheral wall of the housing. Preferably, as... Figure 1 , Figure 2 As shown, an annular groove 105 is formed at the periphery of the first end 109 of the shielding tube 108 in the housing. The cylindrical body 21 is sleeved on the first end of the shielding tube 108. The spring, which is an elastic element 24, is directly sleeved on the shielding tube body in the annular groove. The spring abuts against the cavity wall of the cylindrical body. When the cylindrical body 21 moves backward relative to the shielding tube 108, the spring is compressed.

[0039] The sleeve 101 can be additionally provided with a clamping spring and an external thread. The clamping spring 104 is arranged on the peripheral wall of the sleeve 101 in front of the limiting portion 103 and is used to limit the position. After the plug 1 is inserted into the socket 3, the clamping spring 104 abuts against the cavity wall of the socket 3 to improve the stability of the plug and the socket. The external thread 110 is formed on the peripheral wall of the sleeve 101 in front of the clamping spring 104 and is connected with the connector socket. The internal thread 32 is formed on the cavity wall of the socket behind the locking groove and is threadedly connected with the external thread 110. The external thread, the latch and the push-pull locking are integrated, which is convenient for selection and application according to the requirement. Of course, the clamping spring can be discarded according to the requirement.

[0040] When the plug is unlocked, the body is moved backward relative to the shell, the part of the limiting portion which is lower than the cantilever cannot limit the radial deformation of the cantilever, and then the convex portion is moved to be separated from the locking groove. At this time, the plug can be moved backward to be separated from the socket.

[0041] The preferred embodiments of the utility model are described above, the protection scope of the utility model is not limited to the above-mentioned embodiments, and any technical scheme which belongs to the idea of the utility model belongs to the protection scope of the utility model. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations which do not deviate from the principle of the utility model are also regarded as the protection scope of the utility model.

Claims

1. A connector plug, comprising a cylindrical housing, a latching mechanism (2), and a contact mechanism located in the housing cavity, the contact mechanism being used for electrical connection, the latching mechanism (2) comprising a body (21) and a cantilever (22) connected to the body (21), the cantilever (22) having an outwardly protruding protrusion (23), the protrusion (23) being moved radially in the housing by elastic deformation of the cantilever (22) in the housing to enter or disengage from a locking groove (31) at the connector socket, characterized in that, The main body (21) is slidably connected to the housing in the axial direction. The protrusion (23) enters or disengages from the locking groove (31) of the connector socket during the sliding process of the main body (21). A limiting part (103) is provided on the peripheral wall of the housing in front of the cantilever (22). The part of the limiting part (103) adjacent to the cantilever (22) is lower than the cantilever (22) in the radial direction of the housing, and the part away from the cantilever (22) is higher than the cantilever (22) in the radial direction of the housing. When the housing moves backward relative to the main body (21), the part of the limiting part (103) lower than the cantilever (22) is on the path of the radial elastic deformation of the cantilever (22) to limit its deformation, thereby limiting the movement of the protrusion (23). The cantilever (22) abuts against the part of the limiting part (103) higher than the cantilever to limit the rearward movement of the housing in the axial direction.

2. The plug as described in claim 1, characterized in that: The main body (21) is elastically slidably connected to the shell in the axial direction.

3. The plug as described in claim 2, characterized in that: The main body (21) is slidably connected to the housing and an elastic element (24) for resetting is provided between the main body (21) and the housing through the elastic element (24). The main body (21) and the housing form an elastic sliding connection.

4. The plug as described in claim 1, characterized in that: The body (21) is cylindrical and is fitted onto the end of the shell.

5. The plug as described in claim 1, characterized in that: An external thread (110) is provided on the periphery of the housing end in front of the latching mechanism (2) for threaded connection with the connector socket.

6. The plug as claimed in claim 1, characterized in that: The housing includes a cylindrical body (100), a shielding tube (108), and a sleeve (101). The cylindrical body (100) is fitted and fixed on the shielding tube (108). A contact mechanism is provided in the cavity of the shielding tube (108). The first end of the insulator (102) in the contact mechanism is outside the shielding tube (108), and the sleeve (101) is fitted and placed at the first end of the insulator (102). The body (21) of the latching mechanism (2) is slidably connected to the first end of the shielding tube (108). The limiting part (103) is provided on the peripheral wall of the sleeve (101) in front of the cantilever (22).

7. The plug as described in claim 6, characterized in that: The shielding tube (108) has an annular groove (105) on its peripheral wall at the first end. The cylindrical body (21) is fitted onto the first end of the shielding tube (108) and the body (21) and the shell are elastically slidably connected in the axial direction by the elastic element (24) provided in the annular groove (105).

8. The plug as described in claim 6, characterized in that: A retaining ring (104) for limiting is provided on the peripheral wall of the sleeve (101) in front of the limiting part (103), and an external thread (110) for threaded connection with the connector socket is provided on the peripheral wall of the sleeve (101) in front of the retaining ring (104).

9. A connector, characterized in that: Includes the plug (1) as described in any one of claims 1-8 and the socket (3) that engages with the plug, wherein the end cavity wall of the socket (3) is provided with a locking groove (31) that engages with the protrusion in the latching mechanism, and the protrusion (23) moves radially into or out of the locking groove (31) at the socket to simultaneously lock or unlock the cylinder and the socket.

10. The connector as claimed in claim 9, characterized in that: The socket cavity wall behind the locking groove (31) is provided with an internal thread (32) that engages with the threaded connection at the end of the housing in the plug.

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