Direct insertion type sealing electric connector

Abstract

The utility model discloses a direct insertion type sealing electric connector which comprises a female socket, a male plug and an axial inner sealing gasket, and the male plug is inserted into the female socket. According to the direct insertion type sealing electric connector provided by the invention, the peripheries of the female socket and the male plug are respectively sleeved with the socket outer sleeve column and the plug outer sleeve column, and the radial sealing gasket adhered to the inner wall of the socket outer sleeve column extends into the plug outer sleeve column; the sealing performance of the radial sealing gasket and the inner wall of the plug outer sleeve column is improved through extrusion of the extrusion plate on the radial sealing gasket, and the axial connecting rod is detachably connected to the plug outer sleeve column through the limiting device; and the axial connecting rod moves along with the axial connecting rod, so that the extrusion rod rotates to move the extrusion plate towards the inner wall of the plug outer sleeve column, the effect of increasing the pressure between the radial sealing gasket and the plug outer sleeve column is achieved, and the sealing effect of the radial sealing gasket and the plug outer sleeve column is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a direct plug-in sealed electric connector. Background Art

[0002] The connector is a key part of the robot harness, which connects the harness to the various components of the robot. The connector is usually made of metal or plastic with good conductivity and durability.

[0003] Existing electrical connectors are generally used for the transmission of power or signals. They are widely used in information products and have become an indispensable component. The traditional electrical connector includes a male socket and a female socket. The female socket is provided with a plurality of terminal holes. The terminal holes run through the entire female socket, and the pins in the male socket are plugged into the contact terminals in the terminal holes through the terminal holes. The waterproof structure of this electrical connector is relatively simple. It only lays a sealing gasket at the contact part of the male socket and the female socket, and uses the extrusion force of the male socket and the female socket to achieve sealing. In the prior art, the wiring harness will inevitably pull the electrical connection during use, causing the male socket and the female socket to move in the opposite direction, which in turn causes the extrusion force of the male socket and the female socket on the sealing gasket to decrease, thereby reducing the sealing. Therefore, the sealed electrical connection in the prior art needs to be improved and enhanced. Utility Model Content

[0004] The present application proposes a plug-in sealed electrical connector, which has the advantage of radial sealing and is used to solve the problem of poor sealing caused by the reduction of the squeezing force on the sealing gasket due to the reverse movement of the male seat and the female seat.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a straight-plug sealed electrical connector, comprising a female socket, a male plug and an axial inner sealing gasket, the male plug being plugged into the female socket, the axial inner sealing gasket being arranged on the contact surfaces of the female socket and the male plug, the outer circumferences of the female socket and the male plug being respectively sleeved with a socket outer sleeve column and a plug outer sleeve column, the interiors of the socket outer sleeve column and the plug outer sleeve column being provided with annular grooves and vertical grooves, the vertical grooves being evenly distributed along the radial direction of the annular groove and being connected to the annular groove, a radial sealing gasket being connected to the inner wall of the socket outer sleeve column, the radial sealing gasket being laid in the annular groove and the vertical groove, and an extrusion device being arranged at the vertical groove of the socket outer sleeve column.

[0006] Furthermore, the extrusion device includes an extrusion plate and an axial connecting rod. There are two extrusion plates and they are respectively located at the two ends of the vertical groove. One end of the extrusion plate is slidably connected to the inner wall of the socket sleeve column. The two extrusion plates are rotatably connected with extrusion rods. The two extrusion rods are rotatably connected to the axial connecting rod at one end away from the extrusion plate. The two extrusion rods are inclined toward one side of the plug sleeve column. The two extrusion rods are connected with extrusion springs. The end of the extrusion spring away from the extrusion rod is connected to the axial connecting rod. The radial sealing gasket and the end of the extrusion plate facing the plug sleeve column are connected with a sealing plate. The sealing plate has the same combined shape as the annular groove and the vertical groove. The axial connecting rod passes through the sealing plate, and the end of the axial connecting rod away from the plug sleeve column is connected to a limiting device.

[0007] Furthermore, the limiting device includes a movable limiting plate, the number of which is at least two and which are symmetrically arranged, one end of the movable limiting plate being rotatably connected to the axial connecting rod, the axial connecting rod being provided with a fixed limiting plate located on one side of the movable limiting plate, the movable limiting plate being connected to a limiting spring, the end of the limiting spring away from the movable limiting plate being connected to the axial connecting rod, the axial connecting rod being further provided with a clamping ring, an inner groove being provided inside the plug outer sleeve column, a clamping plate being provided on the inner wall of the plug outer sleeve column, the movable limiting plate being clamped with the clamping plate, and when the movable limiting plate is completely moved into the inner groove, the movable limiting plate approaches the axial connecting rod and the movable limiting plate is clamped in the clamping ring, the clamping ring being elastic and having an inner diameter slightly smaller than an outer diameter of the movable limiting plate.

[0008] Furthermore, a detachable outer ring is sleeved between the socket outer sleeve column and the plug outer sleeve column, the outer ring is ring-shaped, and the contact surfaces between the outer ring and the socket outer sleeve column and the plug outer sleeve column are provided with protrusions, and the corresponding side surfaces of the socket outer sleeve column and the plug outer sleeve column are provided with hole grooves corresponding to the protrusions, and the bottom end of the outer ring is provided with an ear plate, and the ear plate is connected by bolts, and the distance value when the axial connecting rod is fully moved to the inner groove is the same as the width value of the outer ring.

[0009] Furthermore, the socket sleeve column and the plug sleeve column are both annular column-shaped, and the shapes and positions of the annular groove and the vertical groove in the socket sleeve column and the plug sleeve column are corresponding. The width of the vertical groove is equal to or less than the sum of the thickness of the radial sealing gasket and the width of the extrusion plate, and the portion of the radial sealing gasket located in the vertical groove is in the maximum bending state of the radial sealing gasket.

[0010] Furthermore, there are two radial sealing gaskets, which are respectively located on two inner walls of the annular groove; the radial sealing gasket is fixedly connected to the inner wall of the socket outer sleeve column; and the extrusion plate is fixedly connected to the outer wall of the radial sealing gasket.

[0011] The utility model has the following beneficial effects:

[0012] 1. The present application provides a direct-plug sealed electrical connector, which is configured to respectively sleeve the socket jacket column and the plug jacket column on the outer periphery of the female socket and the male plug, extend the radial sealing gasket adhered to the inner wall of the socket jacket column into the interior of the plug jacket column, and increase the sealing performance between the radial sealing gasket and the inner wall of the plug jacket column by squeezing the radial sealing gasket through the extrusion plate, and detachably connect the axial connecting rod to the plug jacket column through a limiting device. When the plug jacket column moves away from the socket jacket column, the axial connecting rod moves accordingly, causing the extrusion rod to rotate and move the extrusion plate toward the inner wall of the plug jacket column, thereby increasing the pressure between the radial sealing gasket and the plug jacket column, thereby increasing the sealing effect between the radial sealing gasket and the plug jacket column.

[0013] 2. The present application provides a direct-plug sealed electrical connector, which achieves the sealing function between the radial sealing gasket and the inner wall of the plug sleeve column by laying a radial sealing gasket on the inner wall of the socket sleeve column and the plug sleeve column, and using an extrusion device to radially extrude the radial sealing gasket. The difference from the direction of axial extrusion in the prior art is that the sealing effect will not be reduced when the female socket and the male plug move in opposite directions, which can make up for the poor sealing effect caused by insufficient extrusion force of the female socket and the male plug in the prior art, and improve the overall sealing effect of the electrical connection.

[0014] 3. The present application provides a plug-in sealed electrical connector, which connects the axial connecting rod with the plug jacket column from the inside of the socket jacket column and the plug jacket column by connecting a limit device to the axial connecting rod and utilizing the clamping connection between a movable limit plate and a clamping plate. The movable limit plate can be stored by pushing the axial connecting rod into the inner groove and cooperating with the clamping action of the clamping ring on the axial connecting rod, so as to facilitate the removal of the axial connecting rod from the plug jacket column, thereby ensuring the plug-in and unplugging functions of the socket jacket column and the plug jacket column. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0016] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of this application;

[0018] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0019] Figure 3 for Figure 1 The enlarged structural diagram at B in the middle;

[0020] Figure 4This is a schematic diagram of the state before plugging in this application;

[0021] Figure 5 for Figure 4 Sectional view at point C in the middle;

[0022] Figure 6 This is a schematic diagram of the structure of the outer sleeve ring of this application;

[0023] Figure 7 A side view of the male plug and the plug jacket column of the present application;

[0024] Figure 8 A side view of the female socket and the socket outer sleeve column of the present application;

[0025] Fig. 9 This is a schematic diagram of the structure of the sealing plate for this application;

[0026] Fig.10 A side view of the limiting device of the present application;

[0027] Fig.11 This is a schematic diagram of the connection between the socket jacket column and the plug jacket column of this application.

[0028] In the figure: 1, socket; 2, plug; 3, axial inner sealing gasket; 4, socket outer sleeve column; 5, plug outer sleeve column; 501, inner groove; 6, radial sealing gasket; 7, extrusion device; 701, extrusion plate; 702, axial connecting rod; 703, extrusion rod; 704, extrusion spring; 705, sealing plate; 8, outer sleeve ring; 801, ear plate; 802, protrusion; 9, limit device; 901, movable limit plate; 902, fixed limit plate; 903, limit spring; 904, retaining ring; 10, retaining plate; 11, ring groove; 1101, vertical groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] See also Figure 1 and attached Figure 4 A plug-in sealed electrical connector includes a female socket 1, a male plug 2 and an axial inner sealing gasket 3. The male plug 2 is plugged into the female socket 1. The axial inner sealing gasket 3 is arranged on the contact surface of the female socket 1 and the male plug 2. The above is a method of sealing the female socket 1 and the male plug 2 in the prior art. Figure 1It can be seen that the axial inner sealing gasket 3 is sealed by the axial extrusion force of the female socket 1 and the male plug 2. When the connector is pulled to both sides during use, the extrusion force of the female socket 1 and the male plug 2 on the axial inner sealing gasket 3 is reduced, and the sealing effect of the axial inner sealing gasket 3 is also reduced. The present application aims to design a connector that will not reduce the sealing performance when the female socket 1 and the male plug 2 are pulled to both sides.

[0031] See attached Figure 1 , and attached Figure 2 The outer peripheries of the female socket 1 and the male plug 2 are respectively provided with a socket outer sleeve column 4 and a plug outer sleeve column 5, see the attached Figure 5 , Attachment Figure 7 , Attachment Figure 8 and attached Fig.11 As shown, the socket outer sleeve column 4 and the plug outer sleeve column 5 are both annular, and the inner parts of the socket outer sleeve column 4 and the plug outer sleeve column 5 are provided with an annular groove 11 and a vertical groove 1101. The vertical groove 1101 is evenly distributed along the radial direction of the annular groove 11 and is connected to the annular groove 11. The vertical groove 1101 is a combination of two semi-arc grooves symmetrical to the center line of the width direction of the annular groove 11, wherein the semi-arc groove can also be designed to extend a vertical rectangular groove from the annular groove 11, and a semi-arc groove is added on the top of the rectangular groove. Figure 7 and attached Figure 8 As shown in FIG. 1 , the shapes and positions of the annular groove 11 and the vertical groove 1101 in the socket outer shell column 4 and the plug outer shell column 5 are corresponding. Figure 1 A radial sealing gasket 6 is connected to the inner wall of the socket outer sleeve column 4 , and the radial sealing gasket 6 is laid in the annular groove 11 and the vertical groove 1101 . An extrusion device 7 is provided at the vertical groove 1101 of the socket outer sleeve column 4 .

[0032] See attached Figure 1 , Attachment Figure 2 and attached Figure 5 As shown, the extrusion device 7 includes an extrusion plate 701 and an axial connecting rod 702. There are two extrusion plates 701, which are respectively located at the two ends of the vertical groove 1101. The extrusion plate 701 is located in the two semi-arc grooves of the vertical groove 1101. One end of the extrusion plate 701 is slidably connected to the inner wall of the socket outer sleeve column 4, that is, the extrusion plate 701 and the socket outer sleeve column 4 are fixed and integrated. The two extrusion plates 701 are both rotatably connected to the extrusion rods 703. The ends of the two extrusion rods 703 away from the extrusion plates 701 are rotatably connected to the axial connecting rod 702. The two extrusion rods 703 are inclined toward one side of the plug outer sleeve column 5. The two extrusion rods 703 are both connected to the extrusion springs 704. The ends of the extrusion springs 704 away from the extrusion rods 703 are connected to the axial connecting rod 702. The radial sealing gasket 6 and the end of the extrusion plate 701 facing the plug outer sleeve column 5 are connected to the sealing plate 705. Fig. 9As shown, the sealing plate 705 has the same combined shape as the annular groove 11 and the vertical groove 1101, the axial connecting rod 702 passes through the sealing plate 705, and the end of the axial connecting rod 702 away from the plug sleeve column 5 is connected to the limiting device 9, and the limiting device 9 is used to connect the axial connecting rod 702 to the plug sleeve column 5, so that when the plug sleeve column 5 moves to the side away from the socket sleeve column 4, the axial connecting rod 702 can move together with the plug sleeve column 5.

[0033] See attached Figure 3 The limiting device 9 includes a movable limiting plate 901, the number of which is at least two and symmetrically arranged, one end of the movable limiting plate 901 is rotatably connected to the axial connecting rod 702, the movable limiting plate 901 is inclined toward the side away from the plug sleeve column 5, and the axial connecting rod 702 is provided with a fixed limiting plate 902 located on one side of the movable limiting plate 901, the fixed limiting plate 902 limits the counterclockwise rotation of the movable limiting plate 901, and when the movable limiting plate 901 rotates to contact with the fixed limiting plate 902, the movable limiting plate 901 rotates counterclockwise to its extreme position. The movable limit plate 901 is connected to a limit spring 903, and one end of the limit spring 903 away from the movable limit plate 901 is connected to the axial connecting rod 702. The axial connecting rod 702 is also provided with a snap ring 904. The interior of the plug outer sleeve column 5 is provided with an inner groove 501, and the inner wall of the plug outer sleeve column 5 is provided with a clamping plate 10. The movable limit plate 901 is clamped with the clamping plate 10. When the movable limit plate 901 moves into the inner groove 501 with the axial connecting rod 702, the movable limit plate 901 approaches the axial connecting rod 702 and the movable limit plate 901 is clamped in the snap ring 904. See the attached Fig.10 As shown, the retaining ring 904 is elastic and its inner diameter is slightly smaller than the outer diameter of the movable limit plate 901. When the movable limit plate 901 is clamped in the retaining ring 904, the clamping force of the retaining ring 904 on the movable limit plate 901 is greater than the elastic force of the limit spring 903, so that the retaining ring 904 can clamp the movable limit plate 901. When the movable limit plate 901 is clamped in the retaining ring 904, the top of the movable limit plate 901 will not contact the clamping plate 10. At this time, if the axial connecting rod 702 moves to the side away from the plug sleeve column 5, the movable limit plate 901 can be smoothly moved out from between the clamping plates 10, thereby realizing the separation of the axial connecting rod 702 from the plug sleeve column 5.

[0034] See attached Figure 4, the left side is an overall view of the male plug 2 and the plug jacket column 5, the right side is an overall view of the female socket 1 and the socket jacket column 4, and the state diagram before the female socket 1 and the male plug 2 are plugged in. During plugging, the pin of the male plug 2 is inserted into the jack of the female socket 1. At the same time, the radial sealing gasket 6 and the limit device 9 are inserted into the annular groove 11 of the plug jacket column 5, and the outer wall of the plug jacket column 5 close to the female socket 1 is inserted into the gap between the socket jacket column 4 and the male plug 2. The movable limit plate 901 is blocked by the clamping plate 10, and the movable limit plate 901 rotates clockwise and squeezes the limit spring 903 so that the limit spring 903 is compressed, and then the movable limit plate 901 moves with The axial connecting rod 702 continues to move. After the movable limit plate 901 passes over the card plate 10, the limit spring 903 is not squeezed and opens under the elastic action of the limit spring 903, so that the movable limit plate 901 is clamped on the hook-shaped section of the card plate 10. At the same time, the movable limit plate 901 rotates counterclockwise until it contacts the fixed limit plate 902. The socket outer sleeve column 4, the outer sleeve ring 8, and the plug outer sleeve column 5 are plugged in place, making it impossible for the socket outer sleeve column 4 and the plug outer sleeve column 5 to continue to be plugged in. Figure 1 After plugging, the axial connecting rod 702 is connected to the plug outer sleeve column 5 by the movable stop plate 901 and the clamping plate 10. Therefore, when the plug outer sleeve column 5 moves away from the socket outer sleeve column 4, the axial connecting rod 702 is pulled by the plug outer sleeve column 5 and moves. The movement of the axial connecting rod 702 drives the extrusion rod 703 to rotate along the contact point between the extrusion rod 703 and the extrusion plate 701. Since the extrusion rod 703 is tilted in the initial state, the extrusion rod 703 is tilted from the attachment. Figure 2 It can be seen that when the axial connecting rod 702 moves to the left, that is, moves away from the socket sleeve column 4, the extrusion rod 703 rotates clockwise, which will squeeze the extrusion plate 701 to move to both sides of the axial connecting rod 702, thereby squeezing the radial sealing gasket 6, increasing the extrusion force on the radial sealing gasket 6, and also increasing the friction between the radial sealing gasket 6 and the inner walls of the socket sleeve column 4 and the plug sleeve column 5. On the one hand, it can enhance the sealing performance with the inner walls of the socket sleeve column 4 and the plug sleeve column 5. On the other hand, due to the increased friction with the inner wall of the plug sleeve column 5, it also hinders the movement of the plug sleeve column 5 in the opposite direction.

[0035] A detachable outer ring 8 is sleeved between the socket outer sleeve column 4 and the plug outer sleeve column 5. The outer ring 8 is annular and has a convex point 802 on the contact surface between the outer ring 8 and the socket outer sleeve column 4 and the plug outer sleeve column 5. The corresponding side surfaces of the socket outer sleeve column 4 and the plug outer sleeve column 5 are provided with a hole groove corresponding to the convex point 802. The convex point 802 is snapped into the hole groove to pre-fix the outer ring 8. The bottom end of the outer ring 8 is provided with an ear plate 801, which is connected by bolts to fix the outer ring 8. The distance value of the axial connecting rod 702 completely moving to the inner groove 501 is the same as the width value of the outer ring 8. See the attached Figure 4 As shown, before plugging in, it is necessary to remove the outer sleeve ring 8 first. During plugging in, it is necessary to be careful not to completely contact the surfaces of the socket outer sleeve column 4 and the plug outer sleeve column 5. This is because if the outer walls of the socket outer sleeve column 4 and the plug outer sleeve column 5 are in contact, the movable limit plate 901 will be completely moved into the inner groove 501, so that the movable limit plate 901 is clamped in the clamping ring 904. When the movable limit plate 901 is clamped with the clamping plate 10, the distance between the socket outer sleeve column 4 and the plug outer sleeve column 5 is slightly smaller than the width of the outer sleeve ring 8. Then the outer sleeve ring 8 is clamped between the socket outer sleeve column 4 and the plug outer sleeve column 5. The outer sleeve ring 8 squeezes the plug outer sleeve column 5 away from the socket outer sleeve column 4. The plug outer sleeve column 5 drives the axial connecting rod 702 to move slightly away from the socket outer sleeve column 4 by a certain distance, so that the extrusion plate 701 squeezes the radial sealing gasket 6, so that in the normal state after plugging in, there is pressure between the plug outer sleeve column 5 and the radial sealing gasket 6 to maintain sealing. When unplugging, first remove the outer ring 8, then move the socket outer ring column 4 and the plug outer ring column 5 relative to each other by the width of the outer ring 8, and the movable limit plate 901 moves into the inner groove 501. The movable limit plate 901 is pressed by the outer wall of the inner groove 501, so that the limit spring 903 is compressed and clamped in the clamping ring 904. At this time, the socket outer ring column 4 and the plug outer ring column 5 can be pulled out to both sides. After pulling out, the movable limit plate 901 can be manually pulled out from the clamping ring 904 for the convenience of next use.

[0036] In addition, during plugging, when the movable limit plate 901 hits the card plate 10, due to the obstruction of the card plate 10 on the movable limit plate 901, the axial connecting rod 702 will be pushed in the direction of the socket sleeve column 4 first. After the end of the axial connecting rod 702 contacts the inner wall of the socket sleeve column 4, it is obstructed by the socket sleeve column 4 and the axial connecting rod 702 no longer moves. Then the movable limit plate 901 squeezes the limit spring 903 to compress the limit spring 903. In the above process, when the axial connecting rod 702 moves toward the socket sleeve column 4, the extrusion rod 703 rotates counterclockwise, driving the extrusion plate 701 to approach the axial connecting rod 702, and then driving the radial sealing gasket 6 downward or stretching the radial sealing gasket 6 downward. In the present application, the radial sealing gasket 6 in contact with the inner wall of the socket sleeve column 4 is fixedly adhered to the inner wall of the socket sleeve column 4, for example, by using glue, and the extrusion plate 701 is also connected to the outer wall of the radial sealing gasket 6. Therefore, when the extrusion plate 701 approaches the axial connecting rod 702, the portion of the radial sealing gasket 6 that adheres to the inner wall of the socket sleeve column 4 is stretched downward, and the portion that protrudes from the socket sleeve column 4 is driven downward. The advantage of this is that it is easy to insert the radial sealing gasket 6 into the interior of the plug sleeve column 5. In addition, the overall outer diameter of the radial sealing gasket 6 is slightly larger than the inner diameter of the annular groove 11, so that the radial sealing gasket 6 is first contracted to facilitate entry into the plug sleeve column 5, and then the plug sleeve column 5 is moved a certain distance away from the socket sleeve column 4 by means of the clamping sleeve ring 8, so that the extrusion plate 701 squeezes the radial sealing gasket 6 to achieve a normal sealing effect of the plug sleeve column 5 and the radial sealing gasket 6.

[0037] See attached Figure 5 As shown, the radial seal 6 is laid in the vertical groove 1101, and the radial seal 6 is squeezed from the outer surface of the radial seal 6 to the inner wall of the vertical groove 1101 by the extrusion plate 701. The width of the vertical groove 1101 is equal to or less than the sum of the thickness of the radial seal 6 and the width of the extrusion plate 701, and the portion of the radial seal 6 located in the vertical groove 1101 is in the maximum bending state of the radial seal 6, that is, when the radial seal 6 is bent in the vertical groove 1101, it tends to open due to its own stress, so the radial seal 6 will be tightly attached to the inner wall of the vertical groove 1101, thereby improving the sealing between the radial seal 6 and the vertical groove 1101, and cooperating with the extrusion of the radial seal 6 by the extrusion plate 701, the sealing between the radial seal 6 and the vertical groove 1101 is further improved.

[0038] See attached Figure 1As shown, the gap between the socket outer sleeve column 4 and the plug outer sleeve column 5 is at the contact surface with the outer sleeve ring 8. If water or other debris from the outside wants to enter between the female socket 1 and the male plug 2, it can only move along the gap at the outer sleeve ring 8, along the inner wall of the outer peripheral plug outer sleeve column 5 and the radial sealing gasket 6 toward the plug outer sleeve column 5, and then flow inward through the annular groove 11 and the vertical groove 1101 to the gap between the inner peripheral plug outer sleeve column 5 and the radial sealing gasket 6, and then flow downward through the gap between the axial inner sealing gasket 3 and the male plug 2 into the inside of the female socket 1 and the male plug 2. In this process, the movement trajectory of water or other debris is more curved, which greatly increases the difficulty of moving water or other debris, and the extrusion force between the radial sealing gasket 6 and the inner wall of the plug outer sleeve column 5 will increase as the plug outer sleeve column 5 moves in the opposite direction relative to the socket outer sleeve column 4, further increasing the difficulty of water or other debris passing through the gap between the plug outer sleeve column 5 and the radial sealing gasket 6, thereby achieving the effect of enhancing the sealing between the socket outer sleeve column 4, the plug outer sleeve column 5 and the female socket 1 and the male plug 2.

[0039] The present application only describes the function of enhancing the sealing when the plug sleeve column 5 moves in the opposite direction to the socket sleeve column 4. This is because the sleeve ring 8 limits the relative movement of the socket sleeve column 4 and the plug sleeve column 5 between the socket sleeve column 4 and the plug sleeve column 5, and if the plug sleeve column 5 moves toward the socket sleeve column 4, it will further squeeze the axial inner sealing gasket 3, thereby increasing the sealing.

Claims

1. A plug-in sealed electrical connector, characterized in that: The invention comprises a female socket (1), a male plug (2) and an axial inner sealing gasket (3), wherein the male plug (2) is plugged into the female socket (1), and the axial inner sealing gasket (3) is arranged on the contact surfaces of the female socket (1) and the male plug (2); the outer circumferences of the female socket (1) and the male plug (2) are respectively sleeved with a socket outer sleeve column (4) and a plug outer sleeve column (5); the inner parts of the socket outer sleeve column (4) and the plug outer sleeve column (5) are both provided with an annular groove (11) and a vertical groove (1101); the vertical grooves (1101) are evenly distributed along the radial direction of the annular groove (11) and are connected to the annular groove (11); a radial sealing gasket (6) is connected to the inner wall of the socket outer sleeve column (4), and the radial sealing gasket (6) is laid in the annular groove (11) and the vertical groove (1101); and an extrusion device (7) is arranged at the vertical groove (1101) of the socket outer sleeve column (4).

2. The plug-in sealed electrical connector according to claim 1, characterized in that: The extrusion device (7) comprises an extrusion plate (701) and an axial connecting rod (702). There are two extrusion plates (701) and they are respectively located at the two ends of the vertical groove (1101). One end of the extrusion plate (701) is slidably connected to the inner wall of the socket sleeve column (4). The two extrusion plates (701) are both rotatably connected to an extrusion rod (703). One end of the two extrusion rods (703) away from the extrusion plate (701) is rotatably connected to the axial connecting rod (702). The two extrusion rods (703) are inclined toward one side of the plug sleeve column (5). The extrusion rod (703) is connected to an extrusion spring (704), and one end of the extrusion spring (704) away from the extrusion rod (703) is connected to the axial connecting rod (702). The radial sealing gasket (6) and the end of the extrusion plate (701) facing the plug sleeve column (5) are connected to a sealing plate (705). The sealing plate (705) has the same combined shape as the annular groove (11) and the vertical groove (1101). The axial connecting rod (702) passes through the sealing plate (705), and the end of the axial connecting rod (702) away from the plug sleeve column (5) is connected to a limiting device (9).

3. The plug-in sealed electrical connector according to claim 2, characterized in that: The limiting device (9) comprises a movable limiting plate (901), the number of the movable limiting plates (901) is at least two and they are symmetrically arranged, one end of the movable limiting plate (901) is rotatably connected to the axial connecting rod (702), the axial connecting rod (702) is provided with a fixed limiting plate (902) located on one side of the movable limiting plate (901), the movable limiting plate (901) is connected to a limiting spring (903), one end of the limiting spring (903) away from the movable limiting plate (901) is connected to the axial connecting rod (702), and the axial connecting rod A snap ring (904) is also provided on (702), an inner groove (501) is provided inside the plug sleeve column (5), a clamping plate (10) is provided on the inner wall of the plug sleeve column (5), the movable limit plate (901) is clamped with the clamping plate (10), when the movable limit plate (901) is completely moved into the inner groove (501), the movable limit plate (901) approaches the axial connecting rod (702) and the movable limit plate (901) is clamped in the snap ring (904), the snap ring (904) is elastic and the inner diameter is slightly smaller than the outer diameter of the movable limit plate (901).

4. The plug-in sealed electrical connector according to claim 3, characterized in that: A detachable outer ring (8) is sleeved between the socket outer sleeve column (4) and the plug outer sleeve column (5); the outer ring (8) is annular; a convex point (802) is provided on the contact surface between the outer ring (8) and the socket outer sleeve column (4) and the plug outer sleeve column (5); a hole groove corresponding to the convex point (802) is opened on the corresponding side surface of the socket outer sleeve column (4) and the plug outer sleeve column (5); an ear plate (801) is provided at the bottom end of the outer ring (8); the ear plate (801) is connected by bolts; the distance value of the axial connecting rod (702) completely moving to the inner groove (501) is the same as the width value of the outer ring (8).

5. The plug-in sealed electrical connector according to claim 4, characterized in that: The socket sleeve column (4) and the plug sleeve column (5) are both annular, and the shapes and positions of the annular groove (11) and the vertical groove (1101) located in the socket sleeve column (4) and the plug sleeve column (5) are corresponding. The width of the vertical groove (1101) is equal to or less than the sum of the thickness of the radial sealing gasket (6) and the width of the extrusion plate (701). The portion of the radial sealing gasket (6) located in the vertical groove (1101) is in the maximum bending state of the radial sealing gasket (6).

6. The plug-in sealed electrical connector according to claim 5, characterized in that: There are two radial sealing gaskets (6) and they are respectively located on the two inner walls of the annular groove (11). The radial sealing gasket (6) is fixedly connected to the inner wall of the socket sleeve column (4), and the extrusion plate (701) is fixedly connected to the outer wall of the radial sealing gasket (6).

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