Plug and connector

Abstract

The utility model relates to the field of connectors, in particular to a plug and a connector, which comprise a shell, a plurality of top covers and a plurality of output terminals, the shell is provided with an inner cavity and a plurality of mounting holes communicated with the inner cavity, the output terminals, the top covers and the mounting holes are in one-to-one correspondence, each output terminal is mounted in the inner cavity from the corresponding mounting hole, and each top cover is arranged in the corresponding mounting hole; a first buckle is arranged on the top cover, and a second buckle is arranged on the inner wall of the mounting hole; the top cover has a blocking state and a non-blocking state, when the top cover is in the non-blocking state, the top cover is located in the corresponding mounting hole, and the first buckle is far away from the second buckle, so that the top cover is pulled out of the mounting hole under the action of external force; the top cover rotates in the corresponding mounting hole until the first buckle is located on the side, close to the inner cavity, of the second buckle, so that the second buckle stops the first buckle, and the top cover is prevented from being separated from the mounting hole. According to the utility model, resources can be saved.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and more particularly to a plug and connector. Background Technology

[0002] A typical connector plug housing includes a body, a tail cap, and a top cover. The body has an upper opening and a tail opening. The tail cap is located at the tail of the body and is used to close the tail opening. The top cover is located on the top of the body and is connected to the body by multiple bolts. The top cover closes the upper opening. The connector's power terminals pass through the tail opening into the body, while the output terminals pass through the upper opening into the body and connect to the power terminals.

[0003] However, when installing the output terminal of the existing connector plug, all the bolts on the top cover plate need to be tightened, and all the bolts need to be loosened during maintenance, which makes the installation or disassembly operation complicated. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a plug and connector that address the issue of complex installation or disassembly operations of existing connector plugs.

[0005] To solve the above-mentioned technical problems, on the one hand, this utility model provides a plug, including a housing, multiple top covers and multiple output terminals;

[0006] The housing has an inner cavity and a plurality of mounting holes communicating with the inner cavity. The output terminal, the top cover and the mounting holes correspond one-to-one. Each output terminal is inserted into the inner cavity from its corresponding mounting hole, and each top cover is disposed in its corresponding mounting hole.

[0007] The top cover is provided with a first buckle, and the inner wall of the mounting hole is provided with a second buckle;

[0008] The top cover has a blocking state and a non-blocking state. When the top cover is in the non-blocking state, the top cover is located in the corresponding mounting hole, and the first buckle is away from the second buckle, so that the top cover can be pulled out from the mounting hole under the action of external force.

[0009] When the top cover rotates from the non-blocking state to the blocking state, the top cover rotates within the corresponding mounting hole until the first buckle is located on the side of the second buckle closer to the inner cavity, so that the second buckle blocks the first buckle to prevent the top cover from dislodging from the mounting hole.

[0010] Optionally, the top cover includes a cover plate and a plug-in post, one end of the plug-in post is connected to the cover plate, the other end of the plug-in post extends into the mounting hole, the cover plate is adapted to close the mounting hole, and the first buckle is disposed at the end of the plug-in post away from the cover plate.

[0011] Optionally, the mounting hole is a round hole, the plug is a cylinder, and the plug is coaxial with the mounting hole;

[0012] The mounting holes include a first through hole, a second through hole, a third through hole, and a fourth through hole that are connected sequentially from the outside to the inside. The first through hole, the second through hole, the third through hole, and the fourth through hole are all circular holes and coaxial. The inner diameters of the first through hole, the second through hole, the third through hole, and the fourth through hole decrease sequentially. The cover plate is disposed in the first through hole, and the second buckle is disposed on the inner wall of the fourth through hole.

[0013] The plug is inserted through the second through hole, the third through hole, and the fourth through hole.

[0014] Optionally, multiple first buckles are provided, and the multiple first buckles are arranged at intervals around the insertion post;

[0015] The second buckle is provided in multiple ways, and the multiple second buckles are spaced apart around the inner wall of the mounting hole.

[0016] Optionally, the radius of the fourth through hole is greater than or equal to the sum of the radius of the plug post and the radial length of the first buckle along the mounting hole;

[0017] Along the circumference of the fourth through hole, the minimum interval between two adjacent second buckles is greater than the width of the first buckle.

[0018] Optionally, a third latch is provided on the cover plate, and the third latch is disposed on the outer peripheral surface of the cover plate;

[0019] The housing is provided with a slot and a sliding groove. The sliding groove is arranged around the first through hole. Both the sliding groove and the slot are connected to the first through hole. The slot is adjacent to one end of the sliding groove. The third buckle can slide in the sliding groove until it is engaged in the slot.

[0020] When the third buckle is in the sliding groove, the first buckle disengages from the second buckle;

[0021] When the third buckle moves from the sliding groove into the slot, the first buckle is blocked by the second buckle.

[0022] Optionally, the cover plate is provided with an avoidance groove, which penetrates the cover plate along the thickness direction and is located on the inner side of the third buckle.

[0023] Optionally, a limiting protrusion is provided on the outer peripheral surface of the cover plate, and the limiting protrusion and the third buckle are spaced apart along the circumferential direction of the cover plate;

[0024] The housing is provided with a limiting groove, the limiting groove is arranged around the first through hole and communicates with the first through hole, and the limiting protrusion can slide within the limiting groove;

[0025] When the limiting protrusion slides from one end of the sliding groove to the other end, the third buckle engages with the slot from the sliding groove.

[0026] Optionally, a sealing ring is also included, with one sealing ring disposed between each of the top cover and the housing. The sealing ring surrounds the corresponding mounting hole. The sealing ring includes a first sealing ring and a second sealing ring, with one axial end of the first sealing ring and one axial end of the second sealing ring connected. The first sealing ring is disposed in the second through hole, and the second sealing ring is disposed in the third through hole.

[0027] On the other hand, this utility model embodiment also provides a connector, including a socket and the aforementioned plug, wherein the plug can be inserted into the socket.

[0028] This utility model provides a plug and connector. During installation or maintenance, only one of the top covers needs to be removed, and the connection between the top cover and the housing is achieved through a stop engagement. During installation, first insert the top cover into the mounting hole, and then rotate the top cover until the first and second latches on the top cover engage. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is an overall schematic diagram of the plug in one embodiment of the present invention;

[0031] Figure 2 This is a top view of the cover plate of the plug in one embodiment of the present invention;

[0032] Figure 3This is a bottom view of the cover plate of the plug in one embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the plug cover plate closing the mounting hole in one embodiment of the present invention;

[0034] Figure 5 This is a partial cross-sectional schematic diagram of the plug in one embodiment of the present invention;

[0035] Figure 6 This is an exploded schematic diagram of the plug in one embodiment of the present invention.

[0036] Reference numerals: 1. Housing; 11. Mounting hole; 111. First through hole; 112. Second through hole; 113. Third through hole; 114. Fourth through hole; 12. Tail port; 13. Front port; 14. Second snap-fit; 15. Slot; 16. Sliding groove; 17. Limiting groove; 2. Top cover; 21. Cover plate; 22. Insertion post; 23. First snap-fit; 24. Third snap-fit; 25. Limiting protrusion; 26. Clearance groove; 3. Sealing ring; 31. First sealing ring; 32. Second sealing ring; 4. Tail cover; 5. Tail sealing ring; 6. Front panel; 7. Panel sealing ring; 8. Power terminal; 9. Output terminal. Detailed Implementation

[0037] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0038] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Please refer to the full text. Figures 1 to 6 One embodiment of this utility model provides a plug, see reference. Figures 1 to 5 The device includes a housing 1, multiple sealing rings 3, multiple top covers 2, and multiple sets of output terminals 9. The housing 1 has an inner cavity and multiple mounting holes 11 communicating with the inner cavity. The output terminals 9 are inserted into the inner cavity through the mounting holes 11. The multiple sets of output terminals 9, multiple top covers 2, multiple sealing rings 3, and multiple mounting holes 11 correspond one-to-one. Each output terminal 9 is inserted into the housing through its corresponding mounting hole. Each top cover 2 is set in its corresponding mounting hole 11. A first buckle 23 is provided on the top cover 2, and a second buckle 14 is provided on the inner wall of the mounting hole 11. A sealing ring 3 is provided between each top cover 2 and the housing 1, and the sealing ring 3 surrounds its corresponding mounting hole 11.

[0041] The top cover 2 has a blocking state and a non-blocking state. When the top cover 2 is in the non-blocking state, the top cover 2 is located in the corresponding mounting hole 11, and the first buckle 23 is away from the second buckle 14, so that the top cover 2 can be pulled out from the mounting hole 11 under the action of external force.

[0042] When the top cover 2 rotates from the non-stopped state to the stopped state, the top cover 2 rotates within its corresponding mounting hole 11 until the first buckle 23 is located on the side of the second buckle 14 near the inner cavity, so that the second buckle 14 stops the first buckle 23 to prevent the top cover 2 from dislodging from the mounting hole 11.

[0043] In practical applications, as described in the background art, when a problem occurs at a certain point of the sealing ring 3, the entire sealing ring 3 needs to be replaced. However, in this embodiment, if one of the output terminals 9 or one of the sealing rings 3 malfunctions, only the corresponding top cover 2 needs to be removed before the output terminal 9 or the sealing ring 3 can be repaired or replaced. There is no need to disassemble the other sealing rings 3 and output terminals 9, thus not affecting the sealing performance of other mounting holes 11 and top cover 2.

[0044] Most importantly, during installation or maintenance, only one of the top covers 2 needs to be removed, and the connection between the top cover and the housing is achieved through the stop engagement. During installation, first insert the top cover 2 into the mounting hole 11, and then simply rotate the top cover 2 until the first and second latches on the top cover 2 engage.

[0045] Reference Figures 2 to 5 As an example, the top cover 2 includes a cover plate 21 and a plug-in post 22. One end of the plug-in post 22 is connected to the cover plate 21, and the other end of the plug-in post 22 extends into the mounting hole 11. The cover plate 21 is adapted to close the mounting hole 11. The first buckle 23 is disposed at the end of the plug-in post 22 away from the cover plate 21. In this embodiment, locking is achieved by the first buckle 23 on the plug-in post 22 and the second buckle 14 in the mounting hole 11. The cover plate 21 and the housing 1 press against the sealing ring 3 to achieve sealing. The cover plate 21 and the plug-in post 22 each perform their respective functions.

[0046] Reference Figure 3 and Figure 4 As an example, the mounting hole 11 is a circular hole, and the insertion post 22 is a cylinder, coaxial with the mounting hole 11. The mounting hole 11 includes a first through hole 111, a second through hole 112, a third through hole 113, a fourth through hole 114, and a fifth through hole, connected sequentially from the outside to the inside. The first through hole 111, the second through hole 112, the third through hole 113, and the fourth through hole 114 are coaxial, and their inner diameters decrease sequentially. The cover plate 21 is disposed within the first through hole 111, and the second buckle 14 is disposed on the inner wall of the fourth through hole 114. The insertion post 22 passes through the second through hole 112, the third through hole 113, and the fourth through hole 114.

[0047] In this embodiment, the inner diameter of the first through hole 111 is larger than the inner diameter of the second through hole 112, the inner diameter of the second through hole 112 is larger than the inner diameter of the third through hole 113, and the inner diameter of the third through hole 113 is larger than the inner diameter of the fourth through hole 114. The first through hole 111, the second through hole 112, the third through hole 113, and the fourth through hole 114 form multiple steps on the inner wall of the mounting hole 11, which extends the sealing path.

[0048] Reference Figures 2 to 5 Furthermore, the sealing ring 3 includes a first sealing ring 31 and a second sealing ring 32, the first sealing ring 31 and the second sealing ring 32 are connected, the first sealing ring 31 is disposed in the second through hole 112, the second sealing ring 32 is disposed in the third through hole 113, and the insertion post 22 passes through the first sealing ring 31 and the second sealing ring 32 in sequence along the outer to inner direction of the housing 1.

[0049] In this embodiment, the first sealing ring 31 overlaps the step formed by the first through hole 111 and the second through hole 112, which increases the sealing area and extends the sealing path. Similarly, the second sealing ring 32 overlaps the step formed by the third through hole 113 and the fourth through hole 114, which also increases the sealing area and extends the sealing path.

[0050] As an example, multiple first latches 23 are provided, and the multiple first latches 23 are spaced apart around the insertion post 22; multiple second latches 14 are provided, and the multiple second latches 14 are spaced apart around the inner wall of the mounting hole 11. Specifically, the radius of the fourth through hole 114 is greater than or equal to the sum of the radius of the insertion post 22 and the radial length of the first latches 23 along the mounting hole 11; along the circumference of the fourth through hole 114, the minimum interval between two adjacent second latches 14 is greater than the width of the first latch 23.

[0051] In this embodiment, the installation process of the top cover 2 is as follows: the first buckle 23 needs to be aligned with the interval between two adjacent second buckles 14, and then the top cover 2 is inserted into the mounting hole 11. After the top cover 2 is fully inserted into the mounting hole 11, the top cover 2 is rotated around its own axis. During the rotation of the top cover 2, the first buckle 23 is rotated until the first buckle 23 is directly opposite the second buckle 14. At this time, the first buckle 23 is located on the side of the second buckle 14 that is close to the inner cavity of the housing 1, so that the second buckle 14 stops the first buckle 23.

[0052] As an example, the cover plate 21 is provided with a hexagonal socket for inserting an Allen wrench. The operator uses the Allen wrench to rotate the cover plate 21 around its axis. The cover plate 21 is also provided with a third latch 24, which is located on the outer circumferential surface of the cover plate 21. The housing 1 is provided with a slot 15 and a sliding groove 16. The sliding groove 16 surrounds the first through hole 111, and both the sliding groove 16 and the slot 15 are connected to the first through hole 111. The slot 15 is adjacent to one end of the sliding groove 16. The third latch 24 can slide within the sliding groove 16 until it is engaged in the slot 15. When the third latch 24 is in the sliding groove 16, the first latch 23 disengages from the second latch 14. When the third latch 24 moves from the sliding groove 16 to the slot 15, the first latch 23 is stopped by the second latch 14.

[0053] In this embodiment, after the top cover 2 is rotated until the first latch 23 and the second latch 14 are engaged, the rotation of the top cover 2 is restricted by the third latch 24 engaging the slot 15. The third latch 24 remains within the slot 15 without external force, and the top cover 2 is always positioned within the mounting hole 11, with the first latch 23 and the second latch 14 engaged. During the rotation of the top cover 2, the sliding path of the top cover 2 and the third latch 24 is restricted by the sliding groove 16. The sliding groove 16 is an arc-shaped groove concentric with the top cover 2, reducing the offset of the top cover 2 during sliding.

[0054] As an example, the cover plate 21 is provided with a relief groove 26, which extends through the thickness direction of the cover plate 21 and is located inside the third buckle 24. In this embodiment, both the housing 1 and the top cover 2 are plastic parts. The presence of the relief groove 26 allows the third buckle 24 to have deformation space. Since the sliding groove 16 and the locking groove 15 are not connected, when the third buckle 24 enters the locking groove 15 from the sliding groove 16, the third buckle 24 will deform towards the center of the top cover 2. Therefore, the relief groove 26 is provided inside the third buckle 24 to allow the third buckle 24 to have deformation space, which reduces the damage rate of the third buckle 24 compared to not providing the relief groove 26.

[0055] As an example, a limiting protrusion 25 is provided on the outer peripheral surface of the cover plate 21, and the limiting protrusion 25 and the third buckle 24 are spaced apart along the circumference of the cover plate 21; a limiting groove 17 is provided on the housing 1, the limiting groove 17 is arranged around the first through hole 111, the limiting groove 17 communicates with the first through hole 111, and the limiting protrusion 25 can slide in the limiting groove 17; when the limiting protrusion 25 slides from one end of the sliding groove 16 to the other end, the third buckle 24 is engaged from the sliding groove 16 into the buckle slot 15.

[0056] In this embodiment, to avoid excessive rotation angle when rotating the top cover 2 counterclockwise, the third buckle 24, which has already entered the slot 15, is rotated counterclockwise out of the slot 15. When the top cover 2 is inserted into the mounting hole 11, the limiting protrusion 25 is located at the end of the limiting groove 17 away from the slot 15. When the top cover 2 rotates, the limiting protrusion 25 rotates accordingly until the limiting protrusion 25 is located at the other end of the slot 15. At this time, the third buckle 24 enters the slot 15 from the sliding groove 16. Through the cooperation of the limiting groove 17 and the limiting protrusion 25, the limiting protrusion 25 and the limiting groove 17 achieve a blocking cooperation after the third buckle 24 enters the slot 15, so that the top cover 2 cannot continue to rotate, thereby keeping the third buckle 24 always in the slot 15.

[0057] Reference Figure 5 and Figure 6In this embodiment, the plug also includes a power terminal 8, a tail cover 4, a tail sealing ring 5, a front panel 6, a panel sealing ring 7, and a housing 1 having a front port 13 and a tail port 12. The front port 13 and the mounting hole 11 are disposed on opposite sides of the housing 1. The opening of the tail port 12 is perpendicular to the front port 13. The tail cover 4 is provided with a first through hole, and the tail sealing ring 5 is provided with a second through hole. The power terminal 8 passes through the first through hole and the second through hole in sequence and is inserted into the housing 1 from the tail port 12. One end of the power terminal 8 that passes through the housing 1 is connected to the output terminal 9. The power terminal 8 is perpendicular to the output terminal 9.

[0058] Output terminal 9 extends into front port 13. Output terminal 9 is used to plug into a matching socket and achieve electrical connection. Front panel 6 is provided on front port 13. Front panel 6 is provided with two plug interfaces. Each plug interface corresponds to one output terminal 9. Front panel 6 is installed on front port 13. Panel sealing ring 7 is provided between front panel 6 and housing 1. Panel sealing ring 7 is used to seal front panel 6 and housing 1.

[0059] In this embodiment, the clearance groove 26, the limiting groove 17, and the sliding groove 16 are all arc-shaped grooves, and the center of the clearance groove 26, the limiting groove 17, and the sliding groove 16 are all the center of the upper surface of the cover plate 21.

[0060] In one embodiment, the present invention also provides a connector, including a socket and the aforementioned plug, wherein the plug is inserted into the socket.

[0061] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A plug, characterized in that The shell, a plurality of top covers and a plurality of output terminals are included. The shell has an inner cavity and a plurality of mounting holes communicating with the inner cavity, the output terminals, the top covers and the mounting holes are in one-to-one correspondence, each of the output terminals is installed in the inner cavity from the mounting hole corresponding thereto, and each of the top covers is arranged in the mounting hole corresponding thereto. The top cover is provided with a first buckle, and the inner wall of the mounting hole is provided with a second buckle. The top cover has a blocking state and a non-blocking state, when the top cover is in the non-blocking state, the top cover is located in the mounting hole corresponding thereto, and the first buckle is away from the second buckle, so that the top cover is pulled out of the mounting hole under the action of external force. When the top cover is rotated from the non-blocking state to the blocking state, the top cover is rotated in the mounting hole corresponding thereto until the first buckle is located on the side of the second buckle close to the inner cavity, so that the second buckle blocks the first buckle to prevent the top cover from being separated from the mounting hole.

2. The plug of claim 1, wherein, The top cover includes a cover plate and a plug-in column, one end of the plug-in column is connected to the cover plate, the other end of the plug-in column extends into the mounting hole, the cover plate is suitable for closing the mounting hole, and the first buckle is arranged at the end of the plug-in column away from the cover plate.

3. The plug of claim 2, wherein, The mounting hole is a circular hole, the plug-in column is a circular column, and the plug-in column is coaxial with the mounting hole. The mounting hole includes a first through hole, a second through hole, a third through hole and a fourth through hole which are sequentially communicated from outside to inside, the first through hole, the second through hole, the third through hole and the fourth through hole are all circular holes and are coaxial, the inner diameters of the first through hole, the second through hole, the third through hole and the fourth through hole decrease in turn, the cover plate is arranged in the first through hole, and the second buckle is arranged on the inner wall of the fourth through hole. The plug-in column is arranged in the second through hole, the third through hole and the fourth through hole.

4. The plug of claim 2, wherein, The first buckle is arranged in a plurality of ways, and a plurality of the first buckles are arranged around the plug-in column at intervals. The second buckle is arranged in a plurality of ways, and a plurality of the second buckles are arranged around the inner wall of the mounting hole at intervals.

5. The plug of claim 3, wherein, The radius of the fourth through hole is greater than or equal to the sum of the radius of the plug-in column and the length of the first buckle along the radial direction of the mounting hole. Along the circumferential direction of the fourth through hole, the minimum interval of two adjacent second buckles is greater than the width of the first buckle.

6. The plug of claim 3, wherein, The cover plate is provided with a third buckle, and the third buckle is arranged on the outer circumferential surface of the cover plate. The shell is provided with a clamping groove and a sliding groove, the sliding groove is arranged around the first through hole, the sliding groove and the clamping groove both communicate with the first through hole, the clamping groove is adjacent to one end of the sliding groove, the third buckle can slide in the sliding groove until it is clamped into the clamping groove. When the third buckle is in the sliding groove, the first buckle is separated from the second buckle. When the third buckle is moved from the sliding groove to the clamping groove, the first buckle is blocked by the second buckle.

7. The plug of claim 6, wherein, The cover plate is provided with an avoiding groove penetrating through the cover plate along the thickness direction of the cover plate, and the avoiding groove is arranged at the inner side of the third buckle.

8. The plug of claim 6, wherein, The outer circumferential surface of the cover plate is provided with a limiting protrusion, and the limiting protrusion and the third buckle are arranged along the circumferential direction of the cover plate. The shell is provided with a limiting groove, the limiting groove is arranged around the first through hole, the limiting groove is communicated with the first through hole, and the limiting protrusion can slide in the limiting groove. When the limiting protrusion slides from one end of the sliding groove to the other end, the third buckle is clamped into the clamping groove from the sliding groove.

9. The plug of claim 3, wherein, Further comprising a sealing ring, one of the sealing rings is arranged between each of the top covers and the shell, the sealing ring is arranged around the mounting hole corresponding to the sealing ring, the sealing ring comprises a first sealing ring and a second sealing ring, one end of the first sealing ring in the axial direction is connected with one end of the second sealing ring in the axial direction, the first sealing ring is arranged in the second through hole, and the second sealing ring is arranged in the third through hole.

10. A connector characterized by comprising: The plug comprises the socket and the plug of any one of claims 1-9, and the plug can be plugged into the socket.

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