Plug type connector with protective structure

Abstract

The utility model relates to the technical field of connectors, and discloses a pluggable connector with a protection structure, which comprises a plug assembly, two ends of the plug assembly are respectively provided with a slot and a wiring groove, the wiring groove is provided with a first connecting part, the slot is provided with a second connecting part, and the plug assembly is connected with a protection part. The protective part is provided with a connecting part detachably connected to the plug assembly and a protective cover connected with one end, far away from the plug assembly, of the connecting part; and the protective cover is detachably connected with the first connecting part or the second connecting part to cover the corresponding wiring groove or slot. According to the utility model, the protective cover is connected to the plug assembly and moves relative to the plug assembly, so that the protective cover can block the slot or the wiring groove when the slot or the wiring groove needs to be blocked according to actual needs, and dust and other impurities are prevented from entering the slot or the wiring groove to influence the use of the plug assembly; the protective cover can play a good sealing role, and can play a role in preventing water inflow while preventing dust.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a pluggable connector with a protective structure. Background Technology

[0002] A cable connector is a device used to connect cables. It connects the conductors and insulation of a cable to other cables or devices to transmit power or signals.

[0003] Cable connectors consist of plug connectors and socket connectors, which transmit power through mating. A plug connector includes a plug assembly and is connected to insulating components via a detachable connection or injection molding method to ensure they can withstand current and voltage and maintain a stable connection. To facilitate connection and removal with the insulating components and socket connector, the plug assembly has relatively large openings and gaps. These openings and gaps are exposed to various environments when not in use, including environments containing dust, particles, and water droplets. These substances, such as dust and particles, can easily enter the plug through these openings and gaps, potentially causing short circuits, leakage, and other accidents, affecting the safety and stability of the cable connector. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a pluggable connector with a protective structure to solve the problem of poor stability of plug components caused by dust and other factors.

[0005] To solve the above-mentioned technical problems, the present invention provides a plug-in connector with a protective structure, including a plug assembly. The plug assembly has a slot and a wiring groove at both ends. A first connecting part is provided on the wiring groove, and a second connecting part is provided on the slot. A protective part is connected to the plug assembly. The protective part has a connecting part detachably connected to the plug assembly and a protective cover connected to one end of the connecting part away from the plug assembly. The protective cover is detachably connected to the first connecting part or the second connecting part to cover the corresponding wiring groove or slot.

[0006] Furthermore, a first collar is formed on one end of the connecting portion for tightly fitting onto the second connecting portion.

[0007] Furthermore, the first sleeve has a first inner hole, and an auxiliary hole is formed on the wall of the first inner hole, which extends axially along the first inner hole to facilitate the insertion of the first connecting part into the first inner hole.

[0008] Furthermore, the auxiliary hole includes a strip-shaped hole that is closer to the first inner hole in the radial direction and a circular hole that is further away from the first inner hole. One end of the strip-shaped hole is connected to the first inner hole, and the other end is connected to the circular hole.

[0009] Furthermore, a second ring for connecting to the protective cover is formed on the other end of the connecting portion.

[0010] Furthermore, both the first connecting part and the second connecting part are external threads, and the protective cover has a first connecting groove and a recessed surface on both sides respectively. The inner wall of the first connecting groove has a first internal thread that matches the external thread of the second connecting part. The first connecting groove is provided with a first sealing gasket for sealing the slot when the dust cover is placed on the second connecting part.

[0011] Furthermore, the dust cover is provided with a connecting block, and a threaded hole is provided on the connecting block. A screw is screwed into the threaded hole to restrict the second collar onto the connecting block.

[0012] Furthermore, the plug assembly includes a plug body and three metal terminals inserted into the plug body. One end of the plug body has a first groove recessed therein, and the first groove is divided into three first cavity structures by a Y-shaped first partition to form the slot. The other end of the plug body has a second groove recessed therein, and the second groove is divided into three interconnected second cavity structures by a Y-shaped second partition to form the wiring groove. The three metal terminals are inserted into the plug body and their two ends extend into the slot and the wiring groove, respectively, and the metal terminals are spaced apart relative to the second partition.

[0013] Furthermore, a washer is fitted onto one end of the plug assembly corresponding to the first connecting part, and a nut is screwed onto it.

[0014] The plug-in connector with a protective structure of this utility model has at least the following beneficial effects: by setting a connecting part and a protective cover, the protective cover can be connected to the plug assembly and move relative to the plug assembly under the setting of the connecting part, so as to block the slot or wiring groove when it needs to be blocked according to actual needs, so as to prevent dust and other impurities from entering and affecting the use of the plug assembly. At the same time, the protective cover can play a good sealing role, which can prevent dust and water ingress at the same time. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1This is a schematic diagram of the pluggable connector according to Embodiment 1 of this utility model;

[0017] Figure 2 This is a schematic diagram of the pluggable connector from another angle, representing one embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the pluggable connector according to Embodiment 2 of this utility model;

[0019] Figure 4 This is an exploded view of the pluggable connector of Embodiment 2 of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the plug assembly and part of the connecting part in Embodiment 2 of this utility model;

[0021] Figure 6 This is an exploded view of the plug assembly and part of the connection portion of Embodiment 2 of this utility model.

[0022] The meanings of the labels in the attached diagram are as follows:

[0023] Plug body 11, first segment 111, second segment 112, third segment 113, stepped surface 114, first groove 115, first partition 116, first cavity structure 117, anti-fooling protrusion 118, socket 119, second groove 120, second partition 121, second cavity structure 122, washer 123, nut 124, metal terminal 13, mating segment 131, insertion segment 132, wiring segment 133, tight-fitting protrusion ring 134, slot 135 136, slot 14, second connecting part 15, wiring groove 16, first connecting part 17, protective part 2, connecting part 21, first collar 211, first inner hole 212, auxiliary hole 213, second collar 214, second inner hole 215, protective cover 22, first connecting groove 221, recessed surface 222, connecting block 223, threaded hole 224, screw 225, second connecting groove 226, third connecting groove 227, second sealing gasket 228. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Example 1

[0026] Please refer to Figures 1 to 2 The plug-in connector with protective structure of this utility model includes a plug assembly and a protective part 2 connected to the plug assembly. The plug assembly is used to mate with the socket assembly to realize the transmission of electrical signals after power is applied. The protective part 2 is used to block the plug assembly as needed when the plug assembly is not in use, so as to prevent dust, water and other substances from entering the plug assembly to a certain extent, thereby protecting the plug assembly.

[0027] In this embodiment, the plug assembly includes a plug body 11 and three metal terminals 13 inserted into the plug body 11. The plug body 11 is usually injection molded from plastic to support and protect the metal terminals 13. The metal terminals 13 are used to connect to the cable and the socket terminals on the socket assembly to realize the connection of electrical signals.

[0028] In this embodiment, the plug body 11 has, along the axial direction, a first segment 111, a second segment 112, and a third segment 113, all of which are cylindrical. The second segment 112 is located between the first segment 111 and the third segment 113 and has a diameter larger than the diameters of the first segment 111 and the third segment 113, so that the second segment 112 protrudes outward relative to the first segment 111 and the third segment 113 to form an annular stepped surface 114. On one end of the plug body 11, that is, on the end face of the first segment 111 facing away from the third segment 113, a first groove 115 is formed extending to the second segment 112 and recessed therein. The first groove 115 has a cylindrical structure. A Y-shaped first partition 116 is integrally formed within the first groove 115. The three forked ends of the first partition 116 extend from the center of the first groove 115 to the groove wall of the first groove 115 in different directions, dividing the first groove 115 into three first cavity structures 117. These three first cavity structures 117 are collectively defined as slots 14, and each slot 14 is adapted to a corresponding structure of a socket assembly so that the corresponding structure can be inserted into the slot 14. Preferably, the end of the first partition 116 furthest from the third segment 113 is substantially flush with one side of the groove opening of the first groove 115. To ensure greater stability of the corresponding structure of the socket assembly when inserted into the slot 14, anti-misalignment protrusions 118 are provided on the sidewall of the first groove 115 containing at least one first cavity structure 117. The anti-misalignment protrusions 118 extend uniformly along the axial direction of the first segment 111, allowing the corresponding structure of the socket assembly to be inserted into the slot 14 along the axial direction of the first segment 111 after a groove structure adapted to the anti-misalignment protrusion 118 is created. The groove structure is inserted axially into the groove structure, increasing the tightness of the connection between the socket assembly and the plug assembly and improving stability. In one embodiment, two anti-misalignment protrusions 118 are provided and disposed within two of the first cavity structures 117, with each anti-misalignment protrusion 118 spaced apart from the first partition 116. In another embodiment, three anti-misalignment protrusions 118 are provided and disposed within three first cavity structures 117. It should be noted that each anti-misalignment protrusion 118 must not obstruct the position and use of the metal terminal 13 in the axial direction. To facilitate connection and mating with the socket assembly, a second connecting portion 15 is formed on the outer wall of the first segment 111. The second connecting portion 15 is a spiral external thread wound around the outer wall of the first segment 111. When the first segment 111 is connected to the socket assembly, the socket assembly engages with the external thread on the first segment 111 through a nut 124 connected to the socket assembly.

[0029] In this embodiment, three insertion holes 119 are provided on the second segment 112 along the axial direction, which pass through the third segment 113. One end of the three insertion holes 119 is connected to the three first cavity structures 117 along the axial direction.

[0030] In this embodiment, a second groove 120 is recessed into the other end of the plug body 11, i.e., the end face of the third segment 113 facing away from the first segment 111, extending to the second segment 112. The second groove 120 has a cylindrical structure. A Y-shaped second partition 121 is integrally formed within the second groove 120. The three mutually distant forked ends of the second partition 121 extend backward from the center of the second groove 120 in different directions, and are spaced apart from the sidewalls of the second groove 120. This divides the second groove 120 into three interconnected second cavity structures 122, which together define a wiring groove 16. The other end of the socket 119 is axially connected to each of the three second cavity structures 122. Since the third segment 113 of the plug body 11 needs to be connected to other structures or a plastic structure needs to be injection molded onto the third segment 113 in the direction of injection molding, in order to increase the tightness between the other structures or plastic structures and the third segment 113, the second partition 121 extends axially out of the second groove 120 on the side away from the second segment 112; and a first connecting part 17 is formed on the outer wall of the third segment 113. The first connecting part 17 is an external thread wrapped around the outer wall of the third segment 113. When the third segment 113 is connected to the plastic structure, the external thread can increase the bonding force with the plastic structure, improve the tightness and stability. A washer 123 is fitted on one end of the plug assembly corresponding to the first connecting part 17 and a nut 124 is screwed on it. That is, the washer 123 is fitted on the third segment 113, and the nut 124 is screwed on the third segment 113 through the first connecting part 17. The stepped surface 114 provides support for the washer 123, and the nut 124 is screwed on the third segment 113 and then presses against the washer 123.

[0031] In this embodiment, the metal terminals 13 are made of conductive metal such as copper. Three metal terminals 13 are respectively inserted into three sockets 119, and both ends of the three metal terminals 13 extend axially into the slot 14 and the wiring groove 16, respectively. The metal terminals 13 are spaced apart relative to the first partition 116 and the second partition 121. Each metal terminal 13 has a cylindrical mating section 131, an insertion section 132 connected to the mating section 131 and used for insertion into the socket 119, and a wiring section 133 connected to the insertion section 132. The mating section 131 extends into the slot 14 but is shorter than the depth of the slot 14. The end of the mating section 131 has a hemispherical arc surface to facilitate insertion into the corresponding structure of the socket assembly. Both the insertion section 132 and the socket 119 have cylindrical structures with a diameter slightly larger than the mating section 131, so that the metal terminals 13 can be installed on the plug body 11 via the mating section 131 during installation. A plurality of tight-fitting protruding rings 134 are provided on the outer wall of the insertion section 132, which surround the outer wall of the insertion section 132. When the insertion section 132 is inserted into the socket 119, the tight-fitting protruding rings 134 abut against the inner wall of the socket 119. The wiring section 133 is also cylindrical and its diameter is larger than that of the socket 119, so as to limit the insertion depth of the insertion section 131 and prevent the wiring section 133 from penetrating into the socket 119. An annular groove is provided on the outer wall of the wiring section 133, and a slot 135 for inserting a cable is provided at the end of the wiring section 133. The slot 135 is open at the end opposite to the docking section. To facilitate cable installation in the slot 135, the end of the connector segment 133 away from the insertion segment 131 is split in half along the axial direction toward the insertion segment 132. Then, on the side near the annular groove, it is further bent and split to the side wall of the connector segment 133 to form a slot 136 that connects to the slot 135. The cable is more easily installed by passing through the slot 136. Afterward, the cable can be welded into the slot 135 to achieve electrical connection between the metal terminal 13 and the cable.

[0032] In this embodiment, the protective part 2 includes a connecting part 21 detachably connected to the plug assembly and a protective cover 22 connected to one end of the connecting part 21 away from the plug assembly. The connecting part 21 is used to connect the protective cover 22 to the plug assembly so that the protective cover 22 can be used at any time when needed. The protective cover 22 covers the slot 14 by being detachably connected to the plug assembly, thereby preventing dust and other substances from entering the covered slot 14. Since the third segment 113 of the plug body 11 will be connected to the injection molding structure in actual use, one end of the third segment 113 of the plug body 11 usually does not need to be dustproofed. As a precaution, the protective cover 22 can be placed on the first segment 111 by the first connecting part 17.

[0033] In this embodiment, the connecting part 21 is made of a material with a certain degree of toughness and flexibility, such as nylon. A first collar 211 for tightly fitting onto the second connecting part 15 is formed on one end of the connecting part 21. The first collar 211 is annular and has a first inner hole 212 inside. The first inner hole 212 is circular and its diameter is adapted to the outer diameter of the first segment 111. Preferably, the diameter of the first inner hole 212 is slightly smaller than the diameter of the external thread so that the first collar 211 can be tightly fitted onto the first segment 111 through the first inner hole 212. Because the diameter of the first inner hole 212 is smaller than the diameter of the external thread on the first segment 111, in order to prevent the first collar 211 from being damaged due to compression of the inner ring, an auxiliary hole 213 is provided on the wall of the first inner hole 212, extending axially to facilitate the insertion of the first connecting part 17 into the first inner hole 212. The auxiliary hole 213 includes a strip-shaped hole that is closer to the first inner hole 212 in the radial direction and a circular hole that is further away from the first inner hole 212. One end of the strip-shaped hole is close to and communicates with the first inner hole 212, and the other end of the strip-shaped hole communicates with the circular hole. In use, the auxiliary hole 213 can enlarge the first inner hole 212 when it is compressed by the first segment 111, so that the first collar 211 can be fitted onto the first segment 111 without damage. A second ring 214 for connecting to the protective cover 22 is formed on the other end of the connecting part 21. The second ring 214 has a circular structure and its inner and outer diameters are both smaller than the diameter of the first inner hole of the first ring 211. The second ring 214 has a second inner hole 215.

[0034] In this embodiment, the protective cover 22 is injection molded from rigid plastic and has a cylindrical structure. The protective cover 22 has a first connecting groove 221 and a recessed surface 222 on its two axially oriented sides, both of which are cylindrical groove structures. The groove depth of the recessed surface 222 is less than the groove depth of the first connecting groove 221. The inner wall of the first connecting groove 221 has a first internal thread adapted to the external thread of the second connecting portion 15. In another embodiment, the first internal thread also adapts to the external thread on the first connecting portion 17, so that the first connecting groove 221 can be threadedly connected to either the first connecting portion 17 or the second connecting portion 15 via the first internal thread, thereby blocking the slot 14 or the wiring groove 16. A first sealing gasket is inserted into the first connecting groove 221. The first sealing gasket is used to seal the slot 14 when connected to the second connecting portion 15 to cover the first section 111. A connecting block 223 is provided on the recessed surface 222. The connecting block 223 has a cylindrical structure and protrudes from the center of the recessed surface 222. A threaded hole 224 is provided on the connecting block 223, extending axially away from the first connecting groove 221. A screw 225 is screwed into the threaded hole 224. The diameter of the head of the screw 225 is larger than the diameter of the second collar 214. The diameter of the first inner hole 212 of the second collar 214 is larger than the diameter of the portion of the screw 225 other than the head. During assembly, the screw 225 is screwed into the threaded hole 224 after passing through the first inner hole 212, thus completing the connection between the second collar 214 and the protective cover 22.

[0035] Example 2

[0036] Please refer to Figures 3 to 6 The pluggable connector with a protective structure in this embodiment includes a plug assembly and a protective part 2 connected to the plug assembly. The plug assembly is exactly the same as in Embodiment 1, and will not be described again here. The protective part 2 includes a connecting part 21 detachably connected to the plug assembly and a protective cover 22 connected to one end of the connecting part 21 away from the plug assembly. The connecting part 21 is exactly the same as in Embodiment 1, the difference being the structure of the protective cover 22.

[0037] In this embodiment, the protective cover 22 is made of plastic and has a cylindrical structure. The two ends of the protective cover 22 are respectively provided with a second connecting groove 226 and a third connecting groove 227 in a recessed manner, and the side of the second connecting groove 226 and the third connecting groove 227 that is close to each other is sealed by the protective cover 22 itself. The inner wall of the second connecting groove 226 has a second internal thread adapted to the external thread of the first connecting part 17, and the inner wall of the third connecting groove 227 has a third internal thread adapted to the external thread of the second connecting part 15, thereby being used to block the slot 14 and the wiring slot 16 respectively. A second sealing gasket 228 is inserted into both the second connecting groove 226 and the third connecting groove 227. The second sealing gasket 228 in the second connecting groove 226 is used to seal the wiring slot 16 after being connected to the first connecting part 17, and the second sealing gasket 228 in the third connecting groove 227 is used to seal the slot 14 after being connected to the second connecting part 15.

[0038] In this embodiment, the connecting block 223 is disposed on the outer wall of the protective cover 22. The connecting block 223 has a cylindrical structure and one end has a connecting block 223 extending onto the protective cover 22. A threaded hole 224 is formed on the connecting block 223, extending through one side of the connecting block 223 along the axial direction of the protective cover 22. A screw 225 is screwed into the threaded hole 224. The diameter of the head of the screw 225 is larger than the diameter of the second collar 214, and the diameter of the first inner hole 212 of the second collar 214 is larger than the diameter of the portion of the screw 225 other than the head. During assembly, the connection between the second collar 214 and the protective cover 22 is completed by screwing the screw 225 through the first inner hole 212 and then screwing it into the threaded hole 224.

Claims

1. A pluggable connector with a protective structure, comprising a plug assembly, wherein each end of the plug assembly has a slot and a wiring groove, the wiring groove is provided with a first connecting portion, and the slot is provided with a second connecting portion, characterized in that: A protective part is connected to the plug assembly. The protective part has a connecting part that is detachably connected to the plug assembly and a protective cover that is connected to one end of the connecting part away from the plug assembly. The protective cover is detachably connected to the first connecting part or the second connecting part to cover the corresponding wiring groove or slot.

2. The pluggable connector with a protective structure as described in claim 1, characterized in that: A first collar is formed on one end of the connecting part for tightly fitting onto the second connecting part.

3. The pluggable connector with a protective structure as described in claim 2, characterized in that: The first sleeve ring has a first inner hole, and an auxiliary hole is formed on the wall of the first inner hole, which extends axially along the first inner hole to facilitate the insertion of the first connecting part into the first inner hole.

4. The pluggable connector with a protective structure as described in claim 3, characterized in that: The auxiliary holes include a strip-shaped hole that is closer to the first inner hole in the radial direction and a circular hole that is further away from the first inner hole. One end of the strip-shaped hole is connected to the first inner hole, and the other end is connected to the circular hole.

5. The pluggable connector with a protective structure as described in claim 2, characterized in that: A second ring for connecting to the protective cover is formed on the other end of the connecting part.

6. The pluggable connector with a protective structure as described in claim 5, characterized in that: Both the first connecting part and the second connecting part have external threads. The protective cover has a first connecting groove and a recessed surface on both sides. The inner wall of the first connecting groove has a first internal thread that matches the external thread of the second connecting part. The first connecting groove is provided with a first sealing gasket for sealing the slot when the dust cover is placed on the second connecting part.

7. The pluggable connector with a protective structure as described in claim 5, characterized in that: Both the first connecting part and the second connecting part have external threads. The two ends of the protective cover have a second connecting groove and a third connecting groove, respectively. The inner wall of the second connecting groove has a second internal thread that matches the external thread of the first connecting part, and the inner wall of the third connecting groove has a third internal thread that matches the external thread of the second connecting part. Both the second connecting groove and the third connecting groove are provided with a second sealing gasket for sealing the slot or wiring groove when the dust cover is correspondingly placed on the first connecting part or the second connecting part.

8. The pluggable connector with a protective structure as described in claim 6 or 7, characterized in that: The dust cover is provided with a connecting block, and a threaded hole is provided on the connecting block. A screw is screwed into the threaded hole to restrict the second collar onto the connecting block.

9. The pluggable connector with a protective structure as described in claim 1, characterized in that: The plug assembly includes a plug body and three metal terminals inserted into the plug body. One end of the plug body has a first groove recessed therein, and the first groove is divided into three first cavity structures by a Y-shaped first partition to form the slot. The other end of the plug body has a second groove recessed therein, and the second groove is divided into three interconnected second cavity structures by a Y-shaped second partition to form the wiring slot. The three metal terminals are inserted into the plug body and their two ends extend into the slot and the wiring slot, respectively, and the metal terminals are spaced apart relative to the second partition.

10. The pluggable connector with a protective structure as described in claim 1, characterized in that: A washer is fitted onto one end of the plug assembly corresponding to the first connector and a nut is screwed onto it.

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