Secondary locking structure and connector

Abstract

The utility model discloses a secondary locking structure and a connector, the secondary locking structure comprises a first connecting piece, a second connecting piece, a locking piece and a third connecting piece, the outer surface of the first connecting piece is provided with a lock catch, and the lock catch is provided with a locking structure A; a locking groove is formed in the second connecting piece, and a locking structure B is arranged in the locking groove; the third connecting piece is movably arranged on the first connecting piece, and the locking piece is provided with a locking part which can be inserted into a gap between the first connecting piece and the lock catch; the third connecting piece is provided with a first position on the first connecting piece, and at the moment, the third connecting piece enables the locking part of the locking piece to be located in the gap between the first connecting piece and the lock catch; the connector further comprises a plugging assembly arranged in the second connecting piece. The secondary locking structure is simple and easy to operate, the connecting line in the connector can be protected and prevented from being pulled apart, the two ends of the connector are provided with the jacks used for being connected with the joint of the connecting line, and the flexibility and adaptability of the connector are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a secondary locking structure and a connector. Background Art

[0002] Connectors are generally used to connect two devices to transmit current or signals. In the field of signal connectors, existing connectors generally use circuit board welding at one end to fix it on the main body of active devices such as socket boards and computers; the other end is set as a socket structure for the access of plugs such as crystal plugs of network cables and telephone lines. With the development of connector technology and the gradual improvement of technical requirements for connectors, many connector manufacturers have also innovated their connectors to make connectors have more and more reliable functions in order to keep up with the pace of rapid development of the industry. Current technological development has higher and higher requirements on the life, quality and utilization rate of connectors, and existing connectors have the following shortcomings:

[0003] 1. The existing connectors have the following problems: First, they use a single locking structure, which makes the connectors easily disconnected due to external stress and other factors, such as safety problems caused by falling, vibration or accidental unplugging; second, they use a secondary locking structure, but the secondary locking structure has a large number of parts and a complex structure, and can only be used in special scenarios; third, they use a screw-locked connection fixation method, or a single-body connection method using a soldered circuit board at one end. The locking structure of the above-mentioned existing connectors is either unstable or complex, or requires tools for disassembly, which is inconvenient.

[0004] 2. The existing connectors have poor waterproof performance.

[0005] 3. One end of the existing connector is welded on the circuit board, which makes it inconvenient to replace, and the welding point between the connector and the circuit board is easy to break, and the service life is short; because one end of the connector is welded on the circuit board, the position is relatively fixed, and it cannot be replaced to other places under special circumstances due to the influence of the position.

[0006] 4. The socket structure of the existing connector is single, and the connection method of the plug such as the crystal head connected thereto is also relatively single, and it can only be applied to the connection of the plug compatible with the socket structure of the connector, and has poor applicability.

[0007] 5. Existing connectors generally cannot meet the connection requirements of multiple groups of signal terminals. When multiple groups of signal terminals need to be connected, multiple groups of connectors are generally required, which increases the connection cost. Utility Model Content

[0008] In order to solve the deficiencies in the prior art, the utility model provides a secondary locking structure with a simple structure and easy operation. Only when the third connector leaves the first position and the locking part of the locking member leaves the gap between the lock buckle and the first connector, the second connector can be separated from the first connector, which can protect the connecting wire in the connector and avoid tearing. At the same time, the sealing ring and the sealing gasket are designed to achieve a waterproof effect, thereby improving the safety performance between the connectors. Both ends of the connector are formed with sockets for connecting to the connectors of the connecting wire, and the connection is not restricted by the position, thereby improving the flexibility and adaptability of the connector and making the connection more stable. The plug-in assembly is detachably arranged in the second connector, and one or more groups of plug-in assemblies can be arranged as needed. The design of multiple groups of connections also reduces the connection cost and improves the connection efficiency. The sockets and plug-in terminals of the plug-in assembly can be of the same or different models to adapt to different models of signal line connectors and meet diverse connection requirements. There is no need to replace the entire connector, thereby reducing the maintenance cost. The flexibility and adaptability of the connector are improved, and the maintenance and replacement process does not require special tools or skills, thereby reducing the difficulty and cost of maintenance. The setting of the fixed line structure not only plays the role of fixing the cable, but also plays a sealing effect, thereby further improving the sealing and waterproof effects.

[0009] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0010] The secondary locking structure includes:

[0011] A first connecting member having a first end and a second end opposite to each other along a first direction, a lock buckle being provided on an outer surface of the first connecting member, a first end of the lock buckle being connected to the first connecting member, a second end of the lock buckle extending toward the second end of the first connecting member and having a gap between the lock buckle and the first connecting member, and a locking structure A being provided on the lock buckle;

[0012] A second connecting member, wherein the second connecting member is connected to the first connecting member by a first end of the first connecting member, the second connecting member is provided with a locking groove adapted to the lock buckle, and the inner surface of the locking groove is provided with a locking structure B adapted to the locking structure A on the lock buckle; wherein one of the locking structure A and the locking structure B is a locking rib, and the other is a locking groove;

[0013] A locking member, the locking member is movably disposed on the first connecting member, and the locking member includes a locking portion that can be inserted into a gap between the first connecting member and the lock buckle;

[0014] a third connecting member, movably disposed at the second end of the first connecting member;

[0015] Among them, the position of the locking member on the first connecting member is located between the first connecting member and the third connecting member, and the third connecting member has a first position on the first connecting member. At this time, the third connecting member limits the position of the locking member on the first connecting member, and the locking portion of the locking member is located in the gap between the first connecting member and the lock buckle.

[0016] The locking portion of the locking member is a cantilever structure, and the locking member further comprises a supporting portion connected to the cantilever structure, the supporting portion is configured to enable the locking member to be movably arranged on the first connecting member, the supporting portion of the locking member is sleeved from the second end of the first connecting member to the outer surface of the first connecting member, the cantilever structure of the locking member extends toward the first end of the first connecting member, and the number of lock buckles on the cantilever structure of the locking member and the first connecting member is consistent, both being one or more;

[0017] or / and a guide structure is provided between the locking portion of the locking member and the first connecting member, the guide structure comprises a guide rib provided on the outer surface of the first connecting member or the locking portion of the locking member, and the other is provided with a first guide groove adapted to the guide rib, the first guide groove extending along the first direction;

[0018] or / and the size of the first end of the first connecting member is larger than the size of the second end, and a transition portion is provided between the first end and the second end of the first connecting member;

[0019] Or / and the lock buckle comprises a bending portion, an extending portion, and a pressing portion connected in sequence, the bending portion is connected to the outer surface of the first connecting member, the pressing portion is bent to a side away from the first connecting member, and when the locking structure A of the lock buckle of the first connecting member cooperates with the locking structure B in the locking groove of the second connecting member for locking, the pressing portion is located outside the locking groove;

[0020] or / and the locking structure A is located on the outer surface of the lock buckle away from the first connecting member;

[0021] or / and the third connecting member is threadedly connected or snap-fittedly connected to the second connecting member;

[0022] or / and the first connector is plugged into the second connector, a sealing groove is provided on the outer surface of the first end of the first connector, and a sealing ring is provided in the sealing groove;

[0023] Or / and the second connecting member includes a shell and a fixing portion which is arranged on the outer surface of the shell and extends outwards, and a sealing gasket is arranged on a surface of one side of the fixing portion which faces away from the third connecting member.

[0024] The utility model also provides a connector, comprising the secondary locking structure.

[0025] The second connector is provided with an installation cavity with opening structures at both ends along the first direction; a plurality of groups of plug-in components are arranged in the installation cavity, and sockets are arranged at both ends of the plug-in components along the first direction; an electrical connection element is arranged in the plug-in component, and the electrical connection element extends along the first direction and forms plug-in terminals in the sockets at both ends of the plug-in component;

[0026] Or / and the connector further comprises a wire fixing structure arranged in the end inner cavity of the second end of the first connector, the wire fixing structure comprises a wire fixing body, and a plurality of wire fixing holes are arranged in the wire fixing body.

[0027] The plug-in assembly comprises:

[0028] An adapter, wherein the electrical connection element is arranged on the adapter, and plug-in terminals formed at two opposite ends of the adapter by the electrical connection element are arranged opposite to each other, and the plug-in terminals are inclined at an angle to the first direction;

[0029] A socket pressure plate arranged in pairs, wherein the socket pressure plate has a first end and a second end opposite to each other, the first end of the socket pressure plate is provided with a plug-in cavity for plugging in a plug-in terminal at one end of the adapter, and the second end of the socket pressure plate is formed as a socket, and the socket is communicated with the plug-in cavity;

[0030] The plug-in terminals at both ends of one of the adapters are respectively plugged into the plug-in cavities of two socket pressure plates arranged in pairs, and the two socket pressure plates arranged in pairs are arranged relatively in the installation cavity of the second connector;

[0031] The plug-in cavity and the socket port arranged on the socket pressure plate are one group or multiple groups.

[0032] The plug-in cavity of the socket pressure plate includes a first cavity adapted to the adapter and a plurality of slots adapted to the plug-in terminals, the slots are connected to the first cavity, and a blocking portion is provided at the end of the first cavity located at the second end;

[0033] Or / and a limiting protrusion is provided on the outer side wall of the adapter to limit the plug-in position of the adapter; preferably, the limiting protrusion is provided at the center position of the adapter along the first direction, and the limiting protrusion protrudes outside the plug-in cavity of the socket pressure plate, so that when the adapter is plugged into the socket pressure plate, the limiting protrusion on the adapter is blocked outside the plug-in cavity, thereby limiting the plug-in position of the adapter;

[0034] Or / and the outer side wall of the socket pressure plate is provided with a limiting convex rib, and the mounting cavity of the second connecting member is provided with a limiting groove adapted to the limiting convex rib;

[0035] Or / and a plurality of support and limiting structures for supporting the socket pressure plate are provided in the installation cavity of the second connecting member, and the support and limiting structures include support side plates provided on the two side walls of the installation cavity of the second connecting member, and the support side plates extend along the first direction.

[0036] A baffle is arranged between the two supporting side plates, and the baffle is located between the socket pressure plates arranged at both ends of the same adapter;

[0037] Or / and a second guide groove adapted to the supporting side plate is provided on the top of the socket pressing plate.

[0038] The fixed wire structure is made of silicone rubber;

[0039] Or / and an opening seam may be optionally provided from the wire fixing hole of the wire fixing structure to the edge of the wire fixing body;

[0040] or / and the diameter of the wire fixing body of the wire fixing structure gradually increases from the inner end to the outer end, and the inner diameter of the end cavity of the second end of the first connecting member gradually increases from the first end to the second end of the first connecting member;

[0041] Or / and an easy-to-pull piece is provided on the outer end surface of the wire fixing body of the wire fixing structure;

[0042] Or / and a boss is provided on the inner end surface edge of the wire fixing body of the wire fixing structure, and an annular groove adapted to the boss is provided in the inner cavity of the end of the second end of the first connecting member;

[0043] Or / and the end portion of the second end of the first connecting member is provided with a reduced diameter structure at a position where the wire fixing structure is provided.

[0044] The inner side wall of the boss of the wire fixing body is provided with a deformable convex rib, and the side wall of the annular groove of the second end of the first connecting member is provided with a groove matching the deformable convex rib, and the diameter of the deformable convex rib is slightly larger than the inner diameter of the groove;

[0045] Or / and the diameter-reducing structure comprises an annular body, a plurality of bevel cuts are arranged on the annular wall of the annular body at intervals along the circumferential direction, and the bevel cuts are inclined at an angle to the radial direction of the annular body.

[0046] The utility model also provides a method for using the secondary locking structure, comprising the following steps:

[0047] Insert the first connecting member from the first end into the second connecting member, insert the lock buckle on the first connecting member into the lock groove of the second connecting member, and make the locking rib snap into the locking groove to achieve one-time locking;

[0048] Installing the locking member on the first connecting member from the second end of the first connecting member;

[0049] The third connecting member is installed to the second end of the first connecting member. During the installation process of the third connecting member, it has a displacement toward the first end of the first connecting member. At this time, the third connecting member will squeeze the locking member to move the locking member toward the first end of the first connecting member; when the third connecting member is installed to the first position on the first connecting member, the locking portion of the locking member is located in the gap between the first connecting member and the locking buckle, so that the locking buckle cannot be pressed, thereby locking the locking rib in the locking groove, making it impossible for the first connecting member and the second connecting member to be separated, thereby achieving secondary locking.

[0050] The utility model also provides a method for using the connector, comprising the following steps:

[0051] Insert one end of the adapter into the insertion cavity of the first socket pressure plate of the paired socket pressure plates. After the socket pressure plates are inserted into place, insert the two connected parts into the installation cavity of the second connector through the other end of the adapter.

[0052] Install the second socket pressing plate of the socket pressing plates arranged in pairs into the installation cavity of the second connector from the side of the adapter where the socket pressing plate is not installed, until the plug-in terminal of the adapter is plugged into place with the second socket pressing plate;

[0053] Insert the first connecting member from the first end into the second connecting member, insert the lock buckle on the first connecting member into the lock groove of the second connecting member, and make the locking rib snap into the locking groove to achieve one-time locking;

[0054] Installing the locking member on the first connecting member from the second end of the first connecting member;

[0055] Install the connecting wire into the fixing hole of the wire fixing structure, and then install the wire fixing structure into the inner cavity of the end of the second end of the first connecting member;

[0056] The third connecting member is installed to the second end of the first connecting member. During the installation process of the third connecting member, it has a displacement toward the first end of the first connecting member. At this time, the third connecting member will squeeze the locking member to move the locking member toward the first end of the first connecting member; when the third connecting member is installed to the first position on the first connecting member, the locking portion of the locking member is located in the gap between the first connecting member and the locking buckle, so that the locking buckle cannot be pressed, thereby locking the locking rib in the locking groove, making it impossible for the first connecting member and the second connecting member to be separated, thereby achieving secondary locking.

[0057] Beneficial effects of the utility model:

[0058] 1. In the secondary locking structure of the utility model, the lock buckle of the first connecting member is inserted into the lock groove of the second connecting member. When the plug is in place, the locking rib is stuck in the locking hole or the locking groove to achieve primary locking; when the third connecting member is installed to the first position on the first connecting member, the locking portion of the locking member is located in the gap between the first connecting member and the lock buckle, so that the lock buckle cannot be pressed, thereby locking the locking rib in the locking hole or the locking groove, so that the first connecting member and the second connecting member cannot be separated, thereby achieving secondary locking. The secondary locking structure is simple and easy to operate.

[0059] 2. The secondary locking structure of the utility model is simple and easy to operate, and the second connecting member can be separated from the first connecting member only when the third connecting member leaves the first position and the locking portion of the locking member leaves the gap between the lock buckle and the first connecting member, which can protect the connecting wires in the connector and avoid tearing. Both ends of the connector are formed with sockets for connecting to the connectors of the connecting wires. The connection is not restricted by position, which improves the flexibility and adaptability of the connector.

[0060] 3. Both ends of the plug-in assembly provided in the second connector of the utility model are formed with sockets for connecting to the connectors of the signal line. The connection is not restricted by position and can be freely replaced to a suitable position for connection, thereby improving the flexibility and adaptability of the connector.

[0061] 4. One or more groups of plug-in components can be arranged in the installation cavity of the second connector of the utility model as needed, and the sockets and plug-in terminals of the plug-in components can be configured as the same or different models according to actual needs to adapt to different models of signal line connectors and meet diverse connection requirements without replacing the entire connector, thereby reducing maintenance costs.

[0062] 5. The utility model realizes the detachable arrangement of the plug-in assembly in the second connector through the adapter and the socket pressure plates arranged in pairs, so that the plug-in assembly can be replaced at will, thereby improving the flexibility and adaptability of the connector. The maintenance and replacement process does not require special tools or skills, reducing the difficulty and cost of maintenance.

[0063] 6. The socket pressure plate of the utility model is provided with multiple groups of plug-in cavities and sockets, which facilitates the connection of multiple groups of signal lines and improves applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Attached Figure 1 It is a structural schematic diagram of the secondary locking structure of the utility model.

[0065] Attached Figure 2 It is a structural schematic diagram of the second connecting member of the utility model.

[0066] Attached Figure 3 It is a structural schematic diagram of the locking member of the utility model.

[0067] Attached Figure 4 This is a schematic diagram of the structure of the third connecting member of the utility model

[0068] Attached Figure 5 It is a schematic diagram of the three-dimensional structure when the third connecting member of the utility model is installed to the first position of the first connecting member.

[0069] Attached Figure 6 It is a schematic cross-sectional structural diagram of the utility model when the third connecting member has not yet been installed to the first position of the first connecting member.

[0070] Attached Figure 7 It is a structural schematic diagram of the connector of the utility model.

[0071] Attached Figure 8 It is a structural schematic diagram of a plug-in assembly arranged in the second connecting piece of the utility model.

[0072] Attached Fig. 9 It is a structural schematic diagram of the adapter of the utility model.

[0073] Attached Fig.10 It is a structural schematic diagram of the connection between the socket pressing plate and one end of the adapter of the utility model.

[0074] Attached Fig.11 It is a structural schematic diagram of the socket pressing plate of the utility model.

[0075] Attached Fig.12 It is a cross-sectional structural schematic diagram of the adapter of the utility model after one end is connected to the socket pressure plate and then installed into the second connecting piece.

[0076] Attached Fig.13 It is a schematic cross-sectional view of the structure of the plug-in assembly in the second housing of the utility model after assembly.

[0077] Attached Fig.14 It is a structural schematic diagram of the wire fixing structure of the utility model.

[0078] Attached Fig.15 It is a structural schematic diagram after the connecting wire is installed in the wire fixing structure of the utility model.

[0079] Attached Fig.16 It is a cross-sectional structural schematic diagram of the utility model in which the wire fixing structure is arranged in the inner cavity of the first connected end portion.

[0080] Attached Fig.17 It is a structural schematic diagram of the diameter locking structure of the utility model.

[0081] Attached Fig.18 It is a structural schematic diagram of the connector of the utility model in use state.

[0082] Numbers shown in the accompanying drawings:

[0083] 1. first connecting member; 11. lock buckle; 111. locking structure A; 112. bending portion; 113. extension portion; 114. pressing portion; 12. guide rib; 13. sealing groove; 14. sealing ring; 15. end cavity; 16. annular groove; 161. groove; 17. annular body; 171. oblique cut; 18. transition portion;

[0084] 2. Second connecting member; 21. Locking groove; 211. Locking structure B; 22. Housing; 23. Fixing part; 24. Sealing pad; 25. Mounting cavity; 251. Limiting groove; 26. Supporting limiting structure; 261. Supporting side plate; 262. Baffle;

[0085] 3. Locking member; 31. Locking portion; 311. First guide groove; 32. Support portion;

[0086] 4. a third connecting member; 41. a blocking member;

[0087] 5. Plug assembly; 51. Electrical connection element; 511. Plug terminal; 52. Adapter; 521. Position limiting protrusion; 53. Socket pressing plate; 531. Plug cavity; 531a. First cavity; 531b. Slot; 531c. Blocking part; 532. Socket; 533. Position limiting rib; 534. Second guide groove;

[0088] 6. Wire fixing structure; 61. Wire fixing body; 62. Wire fixing hole; 63. Open seam; 64. Easy-to-pull piece; 65. Boss; 651. Deformable convex rib;

[0089] 7. Connection object; 71. Signal hole;

[0090] 8. Extension cable. DETAILED DESCRIPTION

[0091] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in combination with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0092] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the utility model belongs. The words "first", "second" and similar words used in the utility model specification and claims of the utility model patent do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0093] As attached Figure 1 As shown, the utility model provides a secondary locking structure, including a first connecting member 1, a second connecting member 2, a locking member 3 and a third connecting member 4.

[0094] The first connecting member 1 has a first end and a second end opposite to each other along a first direction, a lock buckle 11 is provided on the outer surface of the first connecting member 1, the first end of the lock buckle 11 is connected to the first connecting member 1, the second end of the lock buckle 11 extends toward the second end of the first connecting member 1, and there is a gap between the lock buckle 11 and the first connecting member 1, and a locking structure A111 is provided on the lock buckle 11. The lock buckle 11 has a certain elasticity, and when the lock buckle 11 is pressed, the gap between it and the first connecting member 1 is reduced.

[0095] The second connecting member 2 is connected to the first connecting member 1 by the first end of the first connecting member 1. Preferably, the second connecting member 2 is plugged into the first connecting member 1; the second connecting member 2 is provided with a locking groove 21 adapted to the lock buckle 11, and the inner surface of the locking groove 21 is provided with a locking structure B211 adapted to the locking structure A111 on the lock buckle 11; wherein, one of the locking structure A111 and the locking structure B211 is a locking rib, and the other is a locking hole or a locking groove.

[0096] like Figure 1As shown, the locking structure A111 provided on the lock buckle 11 is a locking convex rib, and the locking structure B211 provided on the inner surface of the lock groove 21 is a locking hole. Since the lock buckle 11 has a certain elasticity, when the lock buckle 11 of the first connecting member 1 is inserted into the lock groove 21 of the second connecting member 2, the lock buckle 11 will be squeezed, so that the gap between the lock buckle 11 and the first connecting member 1 is reduced, which is convenient for the connection between the first connecting member 1 and the second connecting member 2. When the connection is in place, the lock buckle 11 returns to its original position, and the locking convex rib on the lock buckle 11 is inserted into the locking hole in the lock groove 21, so as to achieve one-time locking.

[0097] When the locking structure A111 provided on the lock buckle 11 is a locking groove, and the locking structure B211 provided on the inner surface of the lock groove 21 is a locking rib, the same principle applies. During the initial insertion, the locking rib in the lock groove 21 squeezes the lock buckle 11. When the insertion is in place, the lock buckle 11 returns to its original position, and the locking rib in the lock groove 21 is inserted into the locking groove on the lock buckle 11, thus achieving one-time locking. (Not shown in the figure)

[0098] The locking member 3 is movably disposed on the first connecting member 1 , and includes a locking portion 31 that can be inserted into a gap between the first connecting member 1 and the lock buckle 11 .

[0099] The third connecting member 4 is movably arranged at the second end of the first connecting member 1 .

[0100] Among them, the position of the locking member 3 on the first connecting member 1 is located between the first connecting member 1 and the third connecting member 4, and the third connecting member 4 has a first position on the first connecting member 1. At this time, the third connecting member 4 limits the position of the locking member 3 on the first connecting member 1, and the locking portion 31 of the locking member 3 is located in the gap between the first connecting member 1 and the lock buckle 11, which limits the pressing of the lock buckle 11 and realizes secondary locking.

[0101] In the secondary locking structure of the present invention, the lock buckle 11 of the first connecting member 1 is inserted into the lock groove 21 of the second connecting member 2. When plugged into place, the locking rib is stuck in the locking hole or the locking groove to achieve primary locking; the locking member 3 is installed on the first connecting member 1 by the second end of the first connecting member 1, and the third connecting member 4 is installed to the second end of the first connecting member 1. When the third connecting member 4 is installed to the first position on the first connecting member 1, the locking portion 31 of the locking member 3 is located in the gap between the first connecting member 1 and the lock buckle 11, so that the lock buckle 11 cannot be pressed, so that the locking rib is locked in the locking hole or the locking groove, so that the first connecting member 1 and the second connecting member 2 cannot be separated, thereby achieving secondary locking.

[0102] In some possible embodiments, the locking portion 31 of the locking member 3 is a cantilever structure, and the locking member 3 also includes a supporting portion 32 connected to the cantilever structure, and the supporting portion 32 is configured to enable the locking member 3 to be movably arranged on the first connecting member 1, and the supporting portion 32 of the locking member 3 is sleeved from the second end of the first connecting member 1 to the outer surface of the first connecting member 1, and the cantilever structure of the locking member 3 extends toward the first end of the first connecting member 1, and the cantilever structure of the locking member 3 is consistent with the number of the lock buckles 11 on the first connecting member 1, both of which are one or more.

[0103] Preferably, the supporting portion 32 of the locking member 3 is an annular structure, and there are two cantilever structures which are symmetrically arranged on the annular structure.

[0104] In some possible embodiments, a guide structure is arranged between the locking portion 31 of the locking member 3 and the first connecting member 1, and the guide structure includes a guide rib 12 arranged on the outer surface of the first connecting member 1 or the locking portion 31, and the other is provided with a first guide groove 311 adapted to the guide rib 12, and the first guide groove 311 extends along the first direction.

[0105] like Figure 1 , Figure 3 As shown, a first guide groove 311 is provided on the locking portion 31 of the locking member 3, and a guide rib 12 is provided on the outer surface of the first connecting member 1. When the locking member 3 is mounted on the first connecting member 1, the guide rib 12 on the outer surface of the first connecting member 1 is inserted into the first guide groove 311 on the locking portion 31 of the locking member 3, so that the locking member 3 cannot rotate and can only move along the first direction (i.e., the plug-in direction of the first connecting member 1 and the second connecting member 2), thereby realizing the directional movement of the locking portion 31.

[0106] In some possible embodiments, the size of the first end of the first connector 1 is larger than the size of the second end, and a transition portion 18 is provided between the first end and the second end of the first connector 1. Figure 1 , Figure 2 , Figure 3 As shown in the figure, the first end of the first connecting member 1 is a rectangular or cube structure, the second end is a cylindrical structure, and the middle is a transition portion 18 connecting the two. At this time, the transition portion 18 can limit the locking member 3 and restrict the locking member 3 from further moving toward the second connecting member 2.

[0107] In some possible embodiments, Figure 6As shown, the lock buckle 11 includes a bending portion 112, an extending portion 113, and a pressing portion 114 connected in sequence, the bending portion 112 is connected to the outer surface of the first connecting member 1, the pressing portion 114 is bent to the side away from the first connecting member 1, and when the locking structure A111 of the lock buckle 11 of the first connecting member 1 is locked with the locking structure B211 in the locking groove 21 of the second connecting member 2, the pressing portion 114 is located outside the locking groove 21. It is convenient to press the lock buckle 11 to open the first connecting member 1 and the second connecting member 2.

[0108] In some possible embodiments, the locking structure A111 is located on the outer surface of the lock buckle 11 facing away from the first connecting member 1 .

[0109] In some possible embodiments, the third connecting member 4 is threadedly connected or snap-connected to the second connecting member 2, and connection and disassembly are simple and convenient.

[0110] In some possible embodiments, the first connector 1 is plugged into the second connector 2. Figure 1 , Figure 5 As shown, a sealing groove 13 is provided on the outer surface of the first end of the first connecting member 1 , and a sealing ring 14 is provided in the sealing groove 13 , thereby ensuring the sealing performance of the connection between the first connecting member 1 and the second connecting member 2 .

[0111] In some possible embodiments, Figure 1 , Figure 2 , Figure 7 As shown, the second connecting member 2 includes a shell 22 and a fixing portion 23 arranged on the outer surface of the shell 22 and extending outward, and a sealing gasket 24 is arranged on the surface of the fixing portion 23 facing away from the third connecting member 4. The sealing between the second connecting member 2 and the connecting device such as the panel to be installed is improved, thereby ensuring the overall sealing of the utility model.

[0112] like Figure 7 , Figure 8 As shown, the utility model also provides a connector, including the secondary locking structure, the second connecting member 2 is provided with an installation cavity 25 with both ends of the opening structure along the first direction; a plurality of groups of plug-in components 5 are arranged in the installation cavity 25, and the plug-in components 5 are provided with sockets 532 at both ends along the first direction, and electrical connection elements 51 are arranged in the plug-in components 5, and the electrical connection elements 51 extend along the first direction, and plug-in terminals 511 are formed in the sockets 532 at both ends of the plug-in components 5, that is, the plug-in terminals 511 and the sockets 532 constitute an interface for connecting the connectors of the signal line (such as RJ-45 connectors and RJ-11 connectors of network cables and telephone lines, etc.).

[0113] In the present invention, the plug-in assembly 5 disposed in the mounting cavity 25 of the second connector 2 is one or more groups, such as Figure 7, Figure 8 In the embodiment, there are three groups of plug-in components 52 arranged in the second connector 2, and the multiple groups of plug-in components 5 can also be distributed in a matrix.

[0114] The multiple groups of sockets 532 and plug terminals 511 of the plug-in components 5 arranged in the installation cavity 25 of the second connector 2 of the utility model can be configured as the same or different models according to actual needs to adapt to different models of cables and signal line connectors, meet diverse connection requirements, and do not need to replace the entire connector, thereby reducing maintenance costs. The plug-in components 5 of the utility model are formed with sockets 532 at both ends for connecting to the connectors of cables and signal lines. The sockets 532 at both ends can be used to connect to signal lines such as network cables and telephone lines. The positions can be moved arbitrarily, and the connection is not restricted by the position. It can be arbitrarily replaced to a suitable position for connection, which improves the flexibility and adaptability of the connector and can be widely used in various industries and fields, such as communications, electricity, petrochemicals, water treatment, etc., to meet the connection requirements in different scenarios.

[0115] Preferably, the plug-in component 5 is detachably arranged in the installation cavity 25 of the second connector 2, so that the plug-in component 5 can be replaced at will, thereby improving the flexibility and adaptability of the connector. Plug-in components 5 of the same model or different models can also be arranged in a second connector 2 to meet diverse connection requirements. When signal lines of different models need to be connected, there is no need to replace the entire connector, and the plug-in component 5 can be replaced as needed, thereby reducing maintenance costs.

[0116] In some possible embodiments, the connector further includes a wire fixing structure 6 disposed in the end inner cavity 15 of the second end of the first connector 1, the wire fixing structure 6 including a wire fixing body 61, and a plurality of wire fixing holes 62 are disposed in the wire fixing body 61. The wire fixing structure 6 facilitates the fixing of connecting wires such as signal wires and cables. Preferably, the wire fixing structure 6 is made of silicone rubber, plastic material or rubber material, has certain elasticity and sealing properties, is convenient for fixing the wires, and can also play a sealing effect.

[0117] In this embodiment, a blocking member 41 adapted to the wire fixing structure 6 is further provided at the end of the third connecting member 4 to prevent the wire fixing structure 6 from falling off from the end inner cavity 15 of the second end of the first connecting member 1 .

[0118] In some possible embodiments, the plug assembly 5 includes an adapter 52 and socket pressure plates 53 arranged in pairs.

[0119] The adapter 52, the electrical connection element 51 is arranged on the adapter 52, the plug-in terminals 511 formed at two opposite ends of the electrical connection element 51 are arranged opposite to each other, and the plug-in terminals 511 are inclined at an angle to the first direction;

[0120] The socket pressing plates 53 are arranged in pairs, and the socket pressing plates 53 have a first end and a second end opposite to each other. The first end of the socket pressing plates 53 is provided with a plug-in cavity 531 for plugging in the plug-in terminal 511 at one end of the adapter 52, and the second end of the socket pressing plates 53 is formed as a socket 532, and the socket 532 is communicated with the plug-in cavity 531;

[0121] The plug-in terminals 511 at both ends of one adapter 52 are respectively plugged into the plug-in cavities 531 of two socket pressure plates 53 arranged in pairs, and the two socket pressure plates 53 arranged in pairs are relatively arranged in the installation cavity 25 of the second connector 2.

[0122] The plug-in cavity 531 and the socket 532 provided on the socket pressure plate 53 are one group or multiple groups.

[0123] In this embodiment, the plug-in assembly 5 is detachably arranged in the second connector 2 through the adapter 52 and the socket pressure plate 53 arranged in pairs, and the maintenance and replacement process does not require special tools or skills, thereby reducing the difficulty and cost of maintenance; the plug-in cavity 531 and the socket 532 arranged on the socket pressure plate 53 can be arranged into multiple groups as needed, which is convenient for connecting multiple groups of signal lines and improves applicability.

[0124] In some possible embodiments, the plug-in cavity 531 of the socket pressure plate 53 includes a first cavity 531a adapted to the adapter 52, and a plurality of slots 531b adapted to the plug-in terminal 511, wherein the slots 531b are connected to the first cavity 531a, and a blocking portion 531c is provided at the end of the first cavity 531a at the second end. After the adapter 52 is plugged into the socket pressure plate 53 of the socket pressure plate 53, the end of the insertion end of the adapter 52 abuts against the blocking portion 531c, and the plug-in is completed.

[0125] In some possible embodiments, the outer wall of the adapter 52 is provided with a limiting protrusion 521 to limit the plugging position of the adapter 52. Preferably, the limiting protrusion 521 is provided at the center position of the adapter 52 along the first direction, and the limiting protrusion 521 protrudes outside the plugging cavity 531 of the socket pressure plate 53, so that when the adapter 52 is plugged into the socket pressure plate 53, the limiting protrusion 521 on the adapter 52 is blocked outside the plugging cavity 531, thereby limiting the plugging position of the adapter 52 and ensuring the stability and reliability of the plugging. Fig.10 As shown, the limiting protrusion 521 protrudes from the outside of the first cavity 531a of the socket pressure plate 53. When the adapter 52 is plugged into the socket pressure plate 53, the limiting protrusion 521 on the adapter 52 contacts the surface next to the first cavity 531a of the socket pressure plate 53, and the plugging is completed.

[0126] In some possible embodiments, the outer wall of the socket pressure plate 53 is provided with a limiting rib 533, and the mounting cavity 25 of the second connector 2 is provided with a limiting groove 251 adapted to the limiting rib 533. The second connector 2 can be made of plastic material and has a certain elasticity. When the limiting rib 533 provided on the outer wall of the socket pressure plate 53 is inserted into the limiting groove 251 in the mounting cavity 25 of the second connector 2, the second connector 2 returns to its original state, realizing the positioning connection between the socket pressure plate 53 and the second connector 2. In order to facilitate the insertion of the socket pressure plate 53 into the mounting cavity 25 of the second connector 2, the insertion end of the limiting rib 533 is an inclined surface, and the other end is a flat surface.

[0127] In some possible embodiments, a plurality of support and limiting structures 26 for supporting the socket pressure plate 53 are provided in the installation cavity 25 of the second connector 2, and the support and limiting structures 26 include support side plates 261 provided on both side walls of the installation cavity 25 of the second connector 2, and the support side plates 261 extend along the first direction. The support side plates 261 on both side walls of the installation cavity 25 provide stable support for the socket pressure plate 53.

[0128] In some possible embodiments, a baffle 262 is disposed between the two supporting side plates 261 , and the baffle 262 is located between the socket pressure plates 53 disposed at both ends of the same adapter 52 ; the baffle 262 serves to limit the socket pressure plate 53 .

[0129] In some possible embodiments, a second guide groove 534 adapted to the supporting side plate 261 is provided on the top of the socket pressure plate 53 to play a guiding role, thereby facilitating the installation of the socket pressure plate 53 and further enhancing the stability of the overall structure of the connector.

[0130] In some possible embodiments, an opening slit 63 may be optionally provided from the wire fixing hole 62 of the wire fixing structure 6 to the edge of the wire fixing body 61 to facilitate the installation of the cable from the opening slit 63 into the wire fixing hole 62. For example, when connectors are provided at both ends of the cable, the cable can be installed from the opening slit 63 into the wire fixing hole 62 of the wire fixing structure 6, which is simple, convenient and time-saving.

[0131] In some possible embodiments, the diameter of the wire fixing body 61 of the wire fixing structure 6 gradually increases from the inner end to the outer end, and the inner diameter of the end inner cavity 15 of the second end of the first connecting member 1 gradually increases from the first end to the second end of the first connecting member 1, which facilitates the installation of the wire fixing structure 6 into the end inner cavity 15 of the first connecting member 1 and can enhance the wire fixing effect.

[0132] In some possible embodiments, an easy-to-pull piece 64 is provided on the outer end surface of the wire fixing body 61 of the wire fixing structure 6 to facilitate the disassembly and assembly of the wire fixing structure 6 . The outer end surface of the wire fixing structure 6 is the end surface facing away from the first end of the first connector 1 .

[0133] In some possible embodiments, a boss 65 is provided on the inner end surface edge of the wire fixing body 61 of the wire fixing structure 6 , and an annular groove 16 adapted to the boss 65 is provided in the end cavity 15 of the second end of the first connector 1 .

[0134] In some possible embodiments, a deformable rib 651 is provided on the inner side wall of the boss 65 of the wire fixing body 61, and a groove 161 matching the deformable rib 651 is provided on the side wall of the annular groove 16 at the second end of the first connecting member 1, and the diameter of the deformable rib 651 is slightly larger than the inner diameter of the groove 161.

[0135] In some possible embodiments, the end portion of the second end of the first connecting member 1 is provided with a reduced diameter structure at a position where the wire fixing structure 6 is provided.

[0136] In some possible embodiments, the reduced diameter structure includes an annular body 17 , and a plurality of bevel cuts 171 are arranged on the annular wall of the annular body 17 at intervals along the circumferential direction. The bevel cuts 171 are inclined at an angle to the radial direction of the annular body 17 .

[0137] The utility model also provides a method for using the secondary locking structure, comprising the following steps:

[0138] Insert the first connecting member 1 into the second connecting member 2 from the first end, insert the lock buckle 11 on the first connecting member 1 into the lock groove 21 of the second connecting member 2, and make the locking rib snap into the locking hole or the locking groove to achieve one-time locking;

[0139] The locking member 3 is installed on the first connecting member 1 from the second end of the first connecting member 1.

[0140] The third connecting member 4 is installed to the second end of the first connecting member 1. During the installation process of the third connecting member 4, it has a displacement toward the first end of the first connecting member 1. At this time, the third connecting member 4 will squeeze the locking member to make the locking member 3 move toward the first end of the first connecting member 1; when the third connecting member 4 is installed to the first position on the first connecting member 1, the locking portion 31 of the locking member 3 is located in the gap between the first connecting member 1 and the lock buckle 11, so that the lock buckle 11 cannot be pressed, so that the locking rib is locked in the locking hole or locking groove, so that the first connecting member 1 and the second connecting member 2 cannot be separated, thereby achieving secondary locking.

[0141] The utility model also provides a method for using the connector, comprising the following steps:

[0142] Insert one end of the adapter 52 from the insertion cavity 531 of the first socket pressing plate 53 of the paired socket pressing plates 53. After the socket pressing plates 53 are inserted into place, insert the two connected socket pressing plates 53 into the installation cavity 25 of the second connector 2 through the other end of the adapter 52.

[0143] Install the second socket pressing plate 53 of the socket pressing plates 53 arranged in pairs into the installation cavity 25 of the second connector 2 from the side of the adapter 52 where the socket pressing plate 53 is not installed, until the plug-in terminal 511 of the adapter 52 is plugged into place with the second socket pressing plate 53;

[0144] Insert the first connecting member 1 into the second connecting member 2 from the first end, insert the lock buckle 11 on the first connecting member 1 into the lock groove 21 of the second connecting member 2, and make the locking rib snap into the locking hole or the locking groove to achieve one-time locking;

[0145] Install the locking member 3 on the first connecting member 1 from the second end of the first connecting member 1;

[0146] Install the connecting wire into the wire fixing hole 62 of the wire fixing structure 6, and then install the wire fixing structure 6 into the end inner cavity 15 of the second end of the first connecting member 1;

[0147] The third connecting member 4 is installed to the second end of the first connecting member 1. During the installation process of the third connecting member 4, it has a displacement toward the first end of the first connecting member 1. At this time, the third connecting member 4 will squeeze the locking member to make the locking member 3 move toward the first end of the first connecting member 1; when the third connecting member 4 is installed to the first position on the first connecting member 1, the locking portion 31 of the locking member 3 is located in the gap between the first connecting member 1 and the lock buckle 11, so that the lock buckle 11 cannot be pressed, so that the locking rib is locked in the locking hole or locking groove, so that the first connecting member 1 and the second connecting member 2 cannot be separated, thereby achieving secondary locking.

[0148] The utility model makes the connection of the connector more stable through the secondary locking structure. The secondary locking structure of the utility model is simple and easy to operate. Only when the third connector 4 leaves the first position or the third connector 4 is removed, the locking part of the locking member 3 leaves the gap between the lock buckle 11 and the first connector 1, the second connector 2 can be separated from the first connector 1, which can protect the connecting wire in the connector and avoid tearing. Both ends of the connector are formed with a socket 532 for connecting to the connector of the connecting wire. The connection is not limited by the position, which improves the flexibility and adaptability of the connector. Through the two-way insertion connection method and the setting of multiple groups of plug-in components 5, it can be used in a variety of scenarios, such as Fig.18 As shown, if the signal holes 71 of the connection object 7 are dispersedly distributed, the connection can also be performed through an extension cable 8.

[0149] Those skilled in the art should understand that the above-mentioned specific embodiments are merely examples and not limitations, and various modifications, combinations, partial combinations and replacements may be made to the embodiments of the utility model according to design requirements and other factors. As long as they are within the scope of the attached claims or their equivalents, they belong to the scope of rights to be protected by the utility model.

Claims

1. Secondary locking structure, characterized in that: include: A first connecting member having a first end and a second end opposite to each other along a first direction, a lock buckle being provided on an outer surface of the first connecting member, a first end of the lock buckle being connected to the first connecting member, a second end of the lock buckle extending toward the second end of the first connecting member and having a gap between the lock buckle and the first connecting member, and a locking structure A being provided on the lock buckle; A second connecting member, wherein the second connecting member is connected to the first connecting member by a first end of the first connecting member, the second connecting member is provided with a locking groove adapted to the lock buckle, and the inner surface of the locking groove is provided with a locking structure B adapted to the locking structure A on the lock buckle; wherein one of the locking structure A and the locking structure B is a locking rib, and the other is a locking groove; A locking member, the locking member is movably disposed on the first connecting member, and the locking member includes a locking portion that can be inserted into a gap between the first connecting member and the lock buckle; a third connecting member, movably disposed at the second end of the first connecting member; Among them, the position of the locking member on the first connecting member is located between the first connecting member and the third connecting member, and the third connecting member has a first position on the first connecting member. At this time, the third connecting member limits the position of the locking member on the first connecting member, and the locking portion of the locking member is located in the gap between the first connecting member and the lock buckle.

2. The secondary locking structure according to claim 1, characterized in that: The locking portion of the locking member is a cantilever structure, and the locking member further comprises a supporting portion connected to the cantilever structure, the supporting portion is configured to enable the locking member to be movably arranged on the first connecting member, the supporting portion of the locking member is sleeved from the second end of the first connecting member to the outer surface of the first connecting member, the cantilever structure of the locking member extends toward the first end of the first connecting member, and the number of lock buckles on the cantilever structure of the locking member and the first connecting member is consistent, both being one or more; or / and a guide structure is provided between the locking portion of the locking member and the first connecting member, the guide structure comprises a guide rib provided on the outer surface of the first connecting member or the locking portion of the locking member, and the other is provided with a first guide groove adapted to the guide rib, the first guide groove extending along the first direction; or / and the size of the first end of the first connecting member is larger than the size of the second end, and a transition portion is provided between the first end and the second end of the first connecting member; Or / and the lock buckle comprises a bending portion, an extending portion, and a pressing portion connected in sequence, the bending portion is connected to the outer surface of the first connecting member, the pressing portion is bent to a side away from the first connecting member, and when the locking structure A of the lock buckle of the first connecting member cooperates with the locking structure B in the locking groove of the second connecting member for locking, the pressing portion is located outside the locking groove; or / and the locking structure A is located on the outer surface of the lock buckle away from the first connecting member; or / and the third connecting member is threadedly connected or snap-fittedly connected to the second connecting member; or / and the first connector is plugged into the second connector, a sealing groove is provided on the outer surface of the first end of the first connector, and a sealing ring is provided in the sealing groove; Or / and the second connecting member includes a shell and a fixing portion which is arranged on the outer surface of the shell and extends outwards, and a sealing gasket is arranged on a surface of one side of the fixing portion which faces away from the third connecting member.

3. A connector, characterized in that comprising the secondary locking structure according to any one of claims 1 to 2, The second connector is provided with an installation cavity with opening structures at both ends along the first direction; a plurality of groups of plug-in components are arranged in the installation cavity, and sockets are arranged at both ends of the plug-in components along the first direction; an electrical connection element is arranged in the plug-in component, and the electrical connection element extends along the first direction and forms plug-in terminals in the sockets at both ends of the plug-in component; Or / and the connector further comprises a wire fixing structure arranged in the end inner cavity of the second end of the first connector, the wire fixing structure comprises a wire fixing body, and a plurality of wire fixing holes are arranged in the wire fixing body.

4. The connector according to claim 3, characterized in that: The plug-in assembly comprises: An adapter, the electrical connection element is arranged on the adapter, and the plug-in terminals formed by the electrical connection element at two opposite ends of the adapter are arranged opposite to each other; A socket pressure plate arranged in pairs, wherein the socket pressure plate has a first end and a second end opposite to each other, the first end of the socket pressure plate is provided with a plug-in cavity for plugging in a plug-in terminal at one end of the adapter, and the second end of the socket pressure plate is formed as a socket, and the socket is communicated with the plug-in cavity; The plug-in terminals at both ends of one of the adapters are respectively plugged into the plug-in cavities of two socket pressure plates arranged in pairs, and the two socket pressure plates arranged in pairs are arranged relatively in the installation cavity of the second connector; The plug-in cavity and the socket port arranged on the socket pressure plate are one group or multiple groups.

5. The connector according to claim 4, characterized in that: The plug-in cavity of the socket pressure plate includes a first cavity adapted to the adapter and a plurality of slots adapted to the plug-in terminals, the slots are connected to the first cavity, and a blocking portion is provided at the end of the first cavity located at the second end; or / and a limiting protrusion is provided on the outer side wall of the adapter to limit the plugging position of the adapter; Or / and the outer side wall of the socket pressure plate is provided with a limiting convex rib, and the mounting cavity of the second connecting member is provided with a limiting groove adapted to the limiting convex rib; Or / and a plurality of support and limiting structures for supporting the socket pressure plate are provided in the installation cavity of the second connecting member, and the support and limiting structures include support side plates provided on the two side walls of the installation cavity of the second connecting member, and the support side plates extend along the first direction.

6. The connector according to claim 5, characterized in that: A baffle is arranged between the two supporting side plates, and the baffle is located between the socket pressure plates arranged at both ends of the same adapter; Or / and a second guide groove adapted to the supporting side plate is provided on the top of the socket pressing plate.

7. The connector according to claim 3, characterized in that: The fixed wire structure is made of silicone rubber; Or / and an opening seam may be optionally provided from the wire fixing hole of the wire fixing structure to the edge of the wire fixing body; or / and the diameter of the wire fixing body of the wire fixing structure gradually increases from the inner end to the outer end, and the inner diameter of the end cavity of the second end of the first connecting member gradually increases from the first end to the second end of the first connecting member; Or / and an easy-to-pull piece is provided on the outer end surface of the wire fixing body of the wire fixing structure; Or / and a boss is provided on the inner end surface edge of the wire fixing body of the wire fixing structure, and an annular groove adapted to the boss is provided in the inner cavity of the end of the second end of the first connecting member; Or / and the end portion of the second end of the first connecting member is provided with a reduced diameter structure at a position where the wire fixing structure is provided.

8. The connector according to claim 7, characterized in that: The inner side wall of the boss of the wire fixing body is provided with a deformable convex rib, and the side wall of the annular groove at the second end of the first connecting member is provided with a groove matching the deformable convex rib, and the diameter of the deformable convex rib is slightly larger than the inner diameter of the groove.

9. The connector according to claim 7, characterized in that: The diameter-reducing structure comprises an annular body, on the annular wall of which a plurality of oblique cuts are arranged at intervals along the circumferential direction, and the oblique cuts are inclined at an angle to the radial direction of the annular body.

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