An underwater connector

Abstract

The present invention discloses an underwater connector, wherein a stepped through hole is installed in a head shell, a pin assembly is installed in a large hole of the stepped through hole, a sliding shaft is slidably installed in a small hole of the stepped through hole, a plurality of first sealing rings are sleeved on the sliding shaft, the first sealing rings are located in the small hole of the stepped through hole, the front end of the sliding shaft protrudes from the small hole of the stepped through hole, and a limiting rod is radially penetrated by the protruding end of the sliding shaft, an annular groove is formed on the stepped surface of the stepped through hole, a compression spring is sleeved in the annular groove, the rear end of the sliding shaft is connected to the pin assembly, and the socket includes a seat shell, the seat shell is installed in the rear end inner cavity of the sleeve, and the jack assembly is installed in the seat shell. The beneficial effect of the present invention is that when the connector needs to be plugged in, the limiting rod is pulled out, the pin assembly moves toward the socket under the action of the elastic restoring force of the compression spring, and the plugging of the jack and the pin is achieved, thereby realizing signal transmission, and thus making the electrical system work.

Description

Technical Field

[0001] The present invention relates to an underwater connector, in particular to an underwater connector. Background Art

[0002] Connectors transmit signals by engaging a plug and a socket. However, when some connectors are used underwater, the plug and socket need to be kept separated when not in use, and the plug and socket need to be engaged when in use. Since the connectors are used underwater, it is difficult for existing connectors to be kept separated when not in use and to be quickly engaged when in use. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an underwater connector.

[0004] The object of the present invention is achieved by the following technical solutions: An underwater connector comprises a sleeve, a plug and a socket;

[0005] The plug includes a head shell, a stepped through hole is installed in the head shell, a pin assembly is installed in the large hole of the stepped through hole, a sliding shaft is slidably installed in the small hole of the stepped through hole, a plurality of first sealing rings are sleeved on the sliding shaft, the first sealing rings are located in the small hole of the stepped through hole, the front end of the sliding shaft protrudes from the small hole of the stepped through hole, and a limit rod is radially penetrated by the protruding end of the sliding shaft, an annular groove is formed on the step surface of the stepped through hole, a compression spring is sleeved in the annular groove, the rear end of the sliding shaft is connected to the pin assembly, the bottom of the compression spring presses on the pin assembly, and the elastic restoring force exerted by the compression spring on the pin assembly is greater than the friction force between the first sealing ring and the small hole of the stepped through hole;

[0006] The socket includes a seat shell, which is installed in the rear end inner cavity of the sleeve, and a jack assembly is installed in the seat shell;

[0007] An external thread is provided at the rear end of the head shell, and an internal thread is provided in the sleeve. The sleeve and the head shell are locked by threads, and the rear end face of the head shell abuts against the front end face of the seat shell. There is a sliding gap between the pin assembly and the jack assembly, and the pin assembly is located in front of the jack assembly.

[0008] Optionally, the pin assembly includes a pressure plate, an insulating sheet and a head mounting plate connected in sequence from front to back, and the pressure plate, insulating sheet and head mounting plate are locked by locking screws, a number of pins are installed in the head mounting plate, the sliding shaft is connected to the pressure plate, and the compression spring is in contact with the pressure plate.

[0009] Optionally, a groove is provided at the rear end of the pressure plate, a through hole is provided at the bottom of the groove, a limit head matching the groove is provided at the rear end of the sliding shaft, the limit head is installed in the groove, and the front end of the sliding shaft passes through the through hole.

[0010] Optionally, a rotation-stopping notch is provided at the rear end of the head shell, and a rotation-stopping slider matching the rotation-stopping notch is radially provided on the head mounting plate, and the rotation-stopping slider is slidably installed in the rotation-stopping notch.

[0011] Optionally, the jack assembly includes a seat mounting plate, a jack and a rear mounting plate, both of which are mounted in the seat shell, a jack corresponding to the pin is mounted on the seat mounting plate, and the jack extends backward and passes through the rear mounting plate, an annular groove is provided in the rear end inner cavity of the sleeve, a clamping ring is installed in the annular groove, the clamping ring abuts against the head mounting plate, and the head mounting plate abuts against the seat mounting plate, a step surface is provided in the head shell, and an abutting surface abutting against the step surface is provided on the head mounting plate.

[0012] Optionally, the rear end face of the sleeve is provided with a radially inward convex ring, and the seat shell abuts against the front end face of the convex ring.

[0013] Optionally, a plurality of locking screw holes are radially opened on the outer circumference of the sleeve, and fastening screws are installed in the locking screw holes.

[0014] Optionally, the rear mounting plate and the seat mounting plate are bonded together.

[0015] Optionally, an annular sealing groove is provided on the outer side wall of the front end portion of the head shell, and a second sealing ring is installed in the sealing groove.

[0016] The present invention has the following advantages: the connector of the present invention can achieve rapid plugging and engagement of the connector by pulling out the limit rod, so the connector can be assembled in the factory, at which time the plug and the socket are not plugged in. Then, after being assembled underwater, when the connector needs to be plugged in, the limit rod is pulled out, and the pin assembly moves toward the socket under the action of the elastic restoring force of the compression spring, and the jack and the pin are plugged in, thereby realizing signal transmission and making the electrical system work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0019] Figure 3 Schematic diagram of the plug structure Figure 1 ;

[0020] Figure 4 Schematic diagram of the plug structure Figure 2 ;

[0021] Figure 5 Schematic diagram of the plug structure Figure 3 ;

[0022] Figure 6 for Figure 4 Schematic cross-sectional view of AA in the figure;

[0023] Figure 7 for Figure 5 A schematic cross-sectional view of the BB in FIG.

[0024] In the figure, 100-plug, 300-sleeve, 101-limiting rod, 102-head shell, 103-sliding shaft, 104-first sealing ring, 105-compression spring, 106-annular groove, 107-pressure plate, 108-insulating sheet, 109-anti-rotation notch, 110-head mounting plate, 111-pin, 112-second sealing ring, 113-anti-rotation slider, 114-locking screw, 115-fastening screw, 201-seat shell, 202-seat mounting plate, 203-rear mounting plate, 204-jack, 205-clamping ring, 206-sliding gap. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended only to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] like Figure 1 and Figure 2 As shown, an underwater connector includes a sleeve 300, a plug 100 and a socket; in this embodiment, as shown in FIG. Figures 3 to 7 As shown, the plug 100 includes a head housing 102. Figure 6 and Figure 7As shown, a stepped through hole is installed in the head shell 102, a pin assembly is installed in the large hole of the stepped through hole, and a sliding shaft 103 is slidably installed in the small hole of the stepped through hole, and a plurality of first sealing rings 104 are sleeved on the sliding shaft 103, and the first sealing ring 104 is located in the small hole of the stepped through hole. The front end of the sliding shaft 103 protrudes from the small hole of the stepped through hole, and the protruding end of the sliding shaft 103 is radially penetrated by a limiting rod 101, and an annular groove 106 is provided on the step surface of the stepped through hole, and a compression spring 105 is sleeved in the annular groove 106, and the rear end of the sliding shaft 103 is connected to the pin assembly, and the bottom of the compression spring 105 presses on the pin assembly, and the elastic restoring force applied by the compression spring 105 to the pin assembly is greater than the friction force between the first sealing ring 104 and the small hole of the stepped through hole; during installation, the compression spring 105 is sleeved in the annular groove 106, and then the sliding The movable shaft 103 is connected to the pin assembly, and the first sealing ring 104 is put on the sliding shaft 103. There are two first sealing rings 104, which are axially spaced apart. Then the sliding shaft 103 with the first sealing ring 104 is inserted into the small hole of the step through hole. During the insertion process, the compression spring 105 is compressed. When the front end of the sliding shaft 103 protrudes from the small hole of the step through hole, the limiting rod 101 is inserted into the protruding end of the sliding shaft 103, and then the external force of the pin assembly is removed. At this time, the limiting rod 101 abuts against the front end surface of the head shell 102 under the action of the elastic restoring force of the compression spring 105. When in use, use external force to pull the limiting rod 101 out from the protruding end of the sliding shaft 103. The pin assembly moves axially backward under the action of the elastic restoring force of the compression spring 105, thereby moving closer to the socket, and finally realizing the insertion of the pin assembly and the socket assembly.

[0032] In this embodiment, if Figure 6 and Figure 7 As shown, an annular sealing groove is provided on the outer side wall of the front end portion of the head shell 102, and a second sealing ring 112 is installed in the sealing groove.

[0033] In this embodiment, if Figure 2As shown, the socket includes a base shell 201, which is installed in the rear end inner cavity of the sleeve 300, and a jack assembly is installed in the base shell 201; the rear end of the head shell 102 is provided with an external thread, and the sleeve 300 is provided with an internal thread. The sleeve 300 and the head shell 102 are locked by threads, and the rear end surface of the head shell 102 is in contact with the front end surface of the base shell 201, and there is a sliding gap 206 between the pin assembly and the jack assembly. The pin assembly is located in front of the jack assembly. The connector is assembled. When assembling, first assemble the plug 100, then assemble the socket, and then install the socket in the rear end inner cavity of the sleeve 300, and finally tighten the sleeve 300 and the seat shell 201 by threaded locking. Since there is a sliding gap 206 between the pin assembly and the jack assembly, and the pin assembly is located in front of the jack assembly, that is to say, during the threaded locking process of the sleeve 300 and the head shell 102, the pin assembly and the jack assembly do not interfere with each other, thereby ensuring the reliability of the installation of the sleeve 300 and the head shell 102.

[0034] In this embodiment, if Figure 6 and Figure 7 As shown, the pin assembly includes a pressure plate 107, an insulating sheet 108 and a head mounting plate 110 connected in sequence from front to back, and the pressure plate 107, the insulating sheet 108 and the head mounting plate 110 are locked by a locking screw 114, and a number of pins 111 are installed in the head mounting plate 110, the sliding shaft 103 is connected to the pressure plate 107, and the compression spring 105 is in contact with the pressure plate 107. Furthermore, optionally, a recess is provided at the rear end of the pressure plate 107, and a through-hole is provided at the bottom of the recess. A limiting head matching the recess is provided at the rear end of the sliding shaft 103, and the limiting head is fitted in the recess, and the front end of the sliding shaft 103 passes through the through-hole. Preferably, the outer diameters of the pressure plate 107, the insulating sheet 108 and the head mounting plate 110 match the inner diameter of the head shell 102, so that the inner cavity of the head shell 102 has a guiding effect.

[0035] In this embodiment, if Figure 3 、 Figure 6 and Figure 7 As shown, a stop notch 109 is provided at the rear end of the head shell 102, and a stop slider 113 matching the stop notch 109 is radially provided on the head mounting plate 110. The stop slider 113 is slidably installed in the stop notch 109. Therefore, through the cooperation between the stop slider 113 and the stop notch 109, the pin assembly can only move axially and cannot rotate axially, thereby improving the reliability of the insertion of the pin assembly and the socket assembly.

[0036] In this embodiment, if Figure 2As shown, the jack assembly includes a seat mounting plate 202, a jack 204 and a rear mounting plate 203. The seat mounting plate 202 and the rear mounting plate 203 are both mounted in the seat housing 201. The seat mounting plate 202 is mounted with a jack 204 corresponding to the pin 111, and the jack 204 extends backward and passes through the rear mounting plate 203. An annular groove is provided in the rear end inner cavity of the sleeve 300, and a clamping ring 205 is installed in the annular groove. The clamping ring 205 abuts against the head mounting plate 110, and the head mounting plate 110 abuts against the seat mounting plate 202. A step surface is provided in the head housing 102, and a step is provided on the head mounting plate 110. There is an abutting surface that abuts against the step surface. When installing the jack assembly, the jack 204 is first installed in the seat mounting plate 202, and then the rear mounting plate 203 is bonded to the seat mounting plate 202, and the rear end of the jack 204 is passed through the rear mounting plate 203. Preferably, the rear mounting plate 203 and the seat mounting plate 202 are bonded by EC-104 epoxy glue, and then the seat mounting plate 202 and the rear mounting plate 203 are installed together in the seat shell 201, and finally the retaining ring 205 is installed in the annular groove, so that the abutting surface of the head mounting plate 110 abuts against the step surface of the head shell 102.

[0037] In this embodiment, if Figure 2 As shown, the rear end face of the sleeve 300 is provided with a radially inward convex ring, and the seat shell 201 abuts against the front end face of the convex ring. When the socket is installed, the seat shell 201 is placed in the sleeve 300. When the sleeve 300 is locked with the head shell 102, the rear end face of the head shell 102 abuts against the front end face of the seat shell 201, thereby making the rear end face of the seat shell 201 abut against the front end face of the convex ring. When locking, when the rear end face of the head shell 102 abuts against the front end face of the seat shell 201, the sleeve 300 can no longer rotate. In order to avoid loosening between the sleeve 300 and the head shell 102, a plurality of locking screw holes are radially opened on the outer circumference of the sleeve 300, and fastening screws 115 are installed in the locking screw holes. Preferably, there are three fastening screws 115, and they are evenly distributed on the same circumference.

[0038] The working process of the present invention is as follows: after the connector is assembled, its front end is placed upside down in the liquid, and the first sealing ring 104 and the second sealing ring 112 provide sealing performance to ensure the normal use of the product. After assembly, a pulling force is applied to the limit rod 101 to ensure that the limit rod 101 does not move under the pulling force. The pulling force at this time is 90±5N. Under the action of the pulling force, the limit rod 101 remains stationary, thereby ensuring that the limit rod 101 will not be separated from the sliding shaft 103 during transportation and storage of the connector, thereby ensuring that when the connector is not in use, the plug 100 and the jack 204 are in an unplugged state. When in use, another pulling force is applied to the limit rod 101. Preferably, the pulling force at this time is 360±10N. The limit rod 101 quickly disengages from the sliding shaft 103 under the action of the pulling force. Since the elastic restoring force of the compression spring 105 is greater than the friction force between the first sealing ring 104 and the step through hole, the pin assembly moves closer to the socket assembly under the action of the elastic restoring force of the compression spring 105, and the pin 111 is plugged into the corresponding socket 204. At this time, the head mounting plate 110 and the seat mounting plate 202 are in contact, and a pull ring is provided on the limit rod 101, and the pulling of the limit rod 101 can be completed by a cylinder.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An underwater connector, characterized in that: Includes socket, plug and socket; The plug includes a head shell, a stepped through hole is installed in the head shell, a pin assembly is installed in the large hole of the stepped through hole, a sliding shaft is slidably installed in the small hole of the stepped through hole, a plurality of first sealing rings are sleeved on the sliding shaft, the first sealing rings are located in the small hole of the stepped through hole, the front end of the sliding shaft protrudes from the small hole of the stepped through hole, and a limiting rod is radially penetrated by the protruding end of the sliding shaft, an annular groove is provided on the step surface of the stepped through hole, a compression spring is sleeved in the annular groove, the rear end of the sliding shaft is connected to the pin assembly, the bottom of the compression spring presses on the pin assembly, and the elastic restoring force applied by the compression spring to the pin assembly is greater than the friction force between the first sealing ring and the small hole of the stepped through hole; The socket includes a seat housing, which is installed in the rear end inner cavity of the sleeve, and a jack assembly is installed in the seat housing; The rear end portion of the head shell is provided with an external thread, and the sleeve is provided with an internal thread. The sleeve and the head shell are locked by threads, and the rear end face of the head shell abuts against the front end face of the seat shell. There is a sliding gap between the pin assembly and the jack assembly, and the pin assembly is located in front of the jack assembly.

2. An underwater connector according to claim 1, characterized in that: The pin assembly includes a pressure plate, an insulating sheet and a head mounting plate connected in sequence from front to back, and the pressure plate, insulating sheet and head mounting plate are locked by locking screws. Several pins are installed in the head mounting plate, the sliding shaft is connected to the pressure plate, and the compression spring is in contact with the pressure plate.

3. An underwater connector according to claim 2, characterized in that: The rear end of the pressure plate is provided with a groove, the bottom of the groove is provided with a through hole, the rear end of the sliding shaft is provided with a limit head matching the groove, the limit head is installed in the groove, and the front end of the sliding shaft passes through the through hole.

4. An underwater connector according to claim 3, characterized in that: A rotation-stopping notch is provided at the rear end of the head shell, and a rotation-stopping slider matching the rotation-stopping notch is radially arranged on the head mounting plate, and the rotation-stopping slider is slidably mounted in the rotation-stopping notch.

5. The underwater connector according to claim 4, characterized in that: The jack assembly includes a seat mounting plate, a jack and a rear mounting plate, the seat mounting plate and the rear mounting plate are both mounted in the seat shell, a jack corresponding to the pin is mounted on the seat mounting plate, and the jack extends rearward and passes through the rear mounting plate, an annular groove is provided in the rear end inner cavity of the sleeve, a clamping ring is installed in the annular groove, the clamping ring abuts against the head mounting plate, and the head mounting plate abuts against the seat mounting plate, a step surface is provided in the head shell, and an abutting surface abutting against the step surface is provided on the head mounting plate.

6. The underwater connector according to claim 5, characterized in that: The rear end surface of the sleeve is provided with a radially inward convex ring, and the seat housing abuts against the front end surface of the convex ring.

7. The underwater connector according to claim 5, characterized in that: A plurality of locking screw holes are radially opened on the outer circumference of the sleeve, and fastening screws are installed in the locking screw holes.

8. The underwater connector according to claim 5, characterized in that: The rear mounting plate and the seat mounting plate are bonded and connected.

9. The underwater connector according to any one of claims 1 to 8, characterized in that: An annular sealing groove is provided on the outer side wall of the front end portion of the head shell, and a second sealing ring is installed in the sealing groove.

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