CN117353089A - Water tightness connecting device and underwater robot - Google Patents

Water tightness connecting device and underwater robot Download PDF

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Publication number
CN117353089A
CN117353089A CN202311152434.9A CN202311152434A CN117353089A CN 117353089 A CN117353089 A CN 117353089A CN 202311152434 A CN202311152434 A CN 202311152434A CN 117353089 A CN117353089 A CN 117353089A
Authority
CN
China
Prior art keywords
cable
upper cover
lower cover
cover
glue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311152434.9A
Other languages
Chinese (zh)
Inventor
赵琪琪
陈天琳
仝庆
李健
刘佳琪
李忠瑞
康春生
刘浩
王震
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhilan Tianjin Underwater Intelligent Technology Co ltd
Original Assignee
Shenzhilan Tianjin Underwater Intelligent Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhilan Tianjin Underwater Intelligent Technology Co ltd filed Critical Shenzhilan Tianjin Underwater Intelligent Technology Co ltd
Priority to CN202311152434.9A priority Critical patent/CN117353089A/en
Publication of CN117353089A publication Critical patent/CN117353089A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • H01R13/5221—Sealing means between coupling parts, e.g. interfacial seal having cable sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The application provides a water tightness connecting device and underwater robot, relates to the technical field of underwater robots. A watertight coupling device applied to an underwater robot, comprising: a first cable and a second cable; a wiring plug-in connected to the first cable and the second cable to realize plug-in type electric connection between the first cable and the second cable; and the sealing sleeve is used for fixing the first cable and the second cable and carrying out waterproof encapsulation on the wiring plug-in. The watertight connecting device designed according to the technical scheme of the application has the characteristics of high assembly and disassembly speed, low material cost and high watertight performance.

Description

Water tightness connecting device and underwater robot
Technical Field
The invention relates to the technical field of underwater robots, in particular to a water tightness connecting device and an underwater robot.
Background
The electric wire and cable is an electric transmission and control device which is indispensable in modern industry and life, has a wide application range, and can be said to cover almost all fields requiring electric transmission and control. The electric connection device is used as a lap joint bridge between wires and cables, and the safety and the reliability of the electric connection device are particularly important.
Besides meeting the general performance requirements, the electric connection device has the particularly important requirements that the electric connection device has to achieve good contact, reliable work and convenient maintenance, and whether the work reliability directly affects the normal work of an electric circuit relates to the function realization and the use safety of the whole electric equipment.
Under different application scenarios, very strict requirements are placed on the quality and reliability of the required cables and electrical connection devices. For the electric connection device of the underwater cable, the requirements on tightness and compression resistance are higher on the basis of realizing the integral electric performance by reliable connection.
In various existing underwater connection methods for connecting a plurality of underwater sealed cabins by cables, the cables are generally connected by adopting a watertight connector, the watertight connector is generally complex in structure and high in material cost, and the watertight connector has high technical requirements on installation and maintenance personnel and increases project cost. Or the two cabin bodies are connected and separated by adopting a cable cabin penetrating and glue filling mode, and the cabin bodies after glue filling and sealing are time-consuming and labor-consuming to disassemble, so that the cable cabin penetrating and glue filling mode is not beneficial to the subsequent single cabin body analysis, component use, single component test and other work expansion.
Therefore, a technical scheme is needed, on the basis of realizing the underwater reliable electric connection of the cables, the cost can be reduced, the disassembly can be convenient, the multiple sealed cabin bodies can be quickly separated, and the testing and the use of the single cabin body parts are realized.
Disclosure of Invention
The application aims at providing a watertight connecting device and an underwater robot, which can save cost and quickly assemble and disassemble on the basis of realizing reliable underwater electric connection of cables.
According to an aspect of the present application, there is provided a watertight coupling device applied to an underwater robot, comprising:
a first cable and a second cable;
a wiring plug-in connected to the first cable and the second cable to realize plug-in type electric connection between the first cable and the second cable;
and the sealing sleeve is used for fixing the first cable and the second cable and carrying out waterproof encapsulation on the wiring plug-in.
According to some embodiments, the sealing sleeve comprises:
a lower cover;
the upper cover is buckled with the lower cover, so that a cavity for accommodating the wiring plug-in unit is formed;
and the locking device is used for locking the connection between the upper cover and the lower cover.
According to some embodiments, the sealing sleeve further comprises;
and a first sealing member provided between the lower cover and the upper cover, so that a cavity formed between the upper cover and the lower cover is sealed.
According to some embodiments, the locking device is a locking screw cap with a central through hole; after the upper cover and the lower cover are buckled, the locking spiral cover is sleeved on the upper cover and is in threaded connection with the lower cover, and the assembly structure of the upper cover and the lower cover is fixed.
According to some embodiments, the sealing sleeve further comprises:
the second sealing component is arranged between the locking spiral cover and the upper cover.
According to some embodiments, the wiring plug-in unit includes a first connecting portion, the upper cover includes a first glue-pouring groove, a first middle through hole and a first accommodating portion that communicate in sequence, the first cable passes through the upper cover and then is connected to the first connecting portion, and glue is poured in the glue-pouring groove to seal and fix the first cable.
According to some example embodiments, the wiring plug-in further includes a second connection portion, the lower cover includes a second glue-pouring groove, a second middle through hole and a second accommodating portion which are sequentially communicated, the second cable is connected to the second connection portion after passing through the lower cover, and glue is poured in the glue-pouring groove to seal and fix the second cable.
According to some example embodiments, the lower cap and the locking screw cap each have a tool clamping surface thereon.
According to some embodiments, the sealing sleeve is an engineering plastic material.
According to another aspect of the present application, there is provided an underwater robot comprising:
comprising a control device according to any one of the preceding claims.
According to the embodiment of the application, the device is electrically connected with cables to be connected in a plugging mode, a double-layer pressure sealing sleeve and a sleeve are used for forming a sealed insulation cavity, and the cavity is used for accommodating the cable plug-in connector, so that the device cost is reduced and the installation and disassembly speeds are improved on the basis of realizing underwater insulation, compression resistance and sealing effects.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below.
Fig. 1 shows an overall schematic view of a watertight coupling device according to an exemplary embodiment of the present application.
Fig. 2 shows an exploded view of a water tight connection device according to an exemplary embodiment of the present application.
Fig. 3 shows a cross-sectional view of a watertight coupling device according to an exemplary embodiment of the present application.
Fig. 4 shows a cross-sectional view of a watertight coupling device according to another exemplary embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one element from another element. Thus, a first component discussed below could be termed a second component without departing from the teachings of the present application concept. As used herein, the term "and/or" includes any one of the associated listed items and all combinations of one or more.
User information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to herein are both user-authorized or fully authorized information and data by parties, and the collection, use and processing of relevant data requires compliance with relevant laws and regulations and standards of the relevant country and region, and is provided with corresponding operation portals for user selection of authorization or denial.
Those skilled in the art will appreciate that the drawings are schematic representations of example embodiments, and that the modules or flows in the drawings are not necessarily required to practice the present application, and therefore, should not be taken to limit the scope of the present application.
Along with the development of technology in recent decades, more and more electrical equipment and electric equipment are applied to production, living and scientific research scenes, and the reliability and the connection safety of the circuit erection are important, so that a foundation is provided for the use safety of the equipment and the realization of the functions of the equipment.
The erection of cables and the reliability of electrical connection between cables are particularly important. Besides meeting the general performance requirements, the electric connection device has the particularly important requirements that the electric connection device has to achieve good contact, reliable work and convenient maintenance, and whether the work reliability directly affects the normal work of an electric circuit relates to the function realization and the use safety of the whole electric equipment.
In the most special underwater environment, the requirements of reliability and safety are removed, and the water tightness and the pressure resistance are more required to be ensured. The cable is connected by adopting the watertight connector, the watertight connector is generally complex in structure and high in material cost, and has high technical requirements on installation and maintenance personnel and project cost is increased. Or the two cabin bodies are connected and separated by adopting a cable cabin penetrating and glue filling mode, and the cabin bodies after glue filling and sealing are time-consuming and labor-consuming to disassemble, so that the cable cabin penetrating and glue filling mode is not beneficial to the subsequent single cabin body analysis, component use, single component test and other work expansion.
Therefore, the application provides the watertight connecting device applied to the underwater robot, which can realize reliable watertight connection of cables among a plurality of underwater sealed cabin bodies, realize the whole electrical performance and can be quickly disassembled and assembled.
Example embodiments of the present application are described below with reference to the accompanying drawings.
Fig. 1 shows an overall schematic view of a watertight coupling device according to an exemplary embodiment of the present application. The water-tight connection device is applied to an underwater robot.
Referring to fig. 1, the watertight coupling device includes: the first cable 11, the second cable 13, and the sealing sleeve 15, and the wiring plug (inside the sealing sleeve, not shown in the figures). The wiring plug-in is used for connecting the first cable 11 and the second cable 13, so that plug-in type electric connection is realized between the first cable 11 and the second cable 13. The wiring insert may take the form of a conventional use in the art and may include a first connection portion and a second connection portion, which are not described in detail herein.
Referring to fig. 1, the sealing sleeve 15 includes; an upper cover 1, a lower cover 2 and a locking device 3.
According to some embodiments, the upper cover 1 is snapped onto the lower cover 2, thereby forming a cavity between the upper cover 1 and the lower cover 2 for receiving a wiring insert. The locking device 3 is used for locking the connection between the upper cover 1 and the lower cover 2.
According to some embodiments, the first cable and the second cable may be conductive wires made of various materials. For example, copper core pvc insulated cable/wire BV, copper core pvc insulated flexible cable/wire BVR, copper core pvc insulated pvc jacketed round cable/wire BVV, copper core pvc insulated pvc jacketed flat cable/wire BVVB, and the like. And selecting a proper cable type under the actual equipment function requirement and the environment requirement, and realizing the equipment function.
According to some embodiments, the sealing sleeve 15 is used for fixing the first cable 11 and the second cable 13, and a cavity is formed between sleeve parts of the sealing sleeve 15 for accommodating the wiring plug-in.
According to some embodiments, the sealing sleeve 15 has good water tightness, suitable for underwater encapsulation. And the sealing sleeve is made of an impact resistant material with high electrical reliability, so that the requirements of the underwater environment on the connection safety, impact resistance and stability of electrical equipment can be completely met.
According to some embodiments, the sealing sleeve 15 further comprises a first sealing member 4 and a second sealing member 5 for sealing connection between said upper cover 1, lower cover 2, locking means 3, ensuring the water tightness of the water tight connection means.
According to some embodiments, the first sealing member 4 is disposed between the upper cover 1 and the lower cover 2, so that a tightly fitted cavity is formed between the upper cover 1 and the lower cover 2. The formed cavity seals the wiring plug-in the accommodating cavity, and the safety problem caused by liquid infiltration of the electric connection joint in an underwater environment is avoided.
According to some example embodiments, the second sealing member 5 may be disposed between the locking device 3 and the upper cover 1. After the locking device 3 and the lower cover 2 are locked, positive pressure from the locking device 3 is transmitted to the upper cover 1 of the sealing sleeve, so that the upper cover 1 and the lower cover 2 are tightly and reliably attached, and the water tightness of the whole device is improved.
According to some exemplary embodiments, the first sealing member 4 and the second sealing member 5 may be made of rubber, and reliable electrical insulation performance is achieved by using material characteristics. The types of the optional rubber are numerous, and are not listed in this case, and the user can select a rubber sealing component with proper characteristics according to actual sealing requirements and environmental requirements, and are not described too much.
Fig. 2 shows an exploded view of a water tight connection device according to an exemplary embodiment of the present application.
Referring to fig. 2, the sealing sleeve includes: an upper cover 1, a lower cover 2, a locking device 3, a first sealing part 4 and a second sealing part 5.
Referring to fig. 2, the upper cover is of a medium-pass structure. The first cable 11 passes through the upper cover 1 and is electrically connected with the second cable 13 through the wiring plug-in.
Referring to fig. 2, the upper cover may include three parts, namely a first glue-pouring groove part 111, a first middle through-hole part 113, and a first receiving part 115.
The first cable 11 penetrates from the first glue-pouring slot portion 111, passes through the first middle through hole portion 113, and penetrates from the first accommodating portion 115.
According to some embodiments, the first glue-pouring slot 111 includes a reserved glue-pouring space, and when the first cable 11 penetrates, the insulating waterproof sealant is poured into the remaining part of the cavity of the first glue-pouring slot 111.
According to some embodiments, the first accommodating portion 115 has an accommodating cavity therein for accommodating the plug-in electrical connection connector of the first cable 11 and the second cable 13.
The lower cover is also of a medium-pass structure. The second cable 13 is electrically and reliably connected to the first cable 11 through the lower cover 2 by means of a connector. Referring to fig. 2, the lower cover 2 includes a second accommodating portion end 211, a second accommodating portion main body 213, and a second glue-pouring groove 215, where the second accommodating portion main body 213 and the second accommodating portion end 211 are of a middle-through structure, and an external circular surface of the second accommodating portion main body 213 is designed with an adhesive force surface (tool clamping surface), so that assembly personnel can quickly assemble and disassemble the lower cover.
According to some embodiments, the second receiving portion end 211 is a fastening portion of the sealing sleeve, and is matched with the interface portion 311 of the locking device matched with the locking seal to perform pressure locking on the sealing cavity formed by the upper cover 1, the lower cover 2 and the first sealing member 4. The second receptacle end 211 and the interface portion 311 of the locking device may be a threaded connection that is engaged with each other.
According to some embodiments, the outer diameter of the first receiving portion 115 is equal to the inner diameter of the second receiving portion end 211 such that the two mesh to form a sealed cavity.
According to some embodiments, the contact surface between the second receiving portion end 211 and the first receiving portion 115 may be inclined, so that the contact is tighter, which is advantageous for pressing the first sealing member 4, so that an integral sealing cavity is formed between the upper cover and the lower cover for receiving and sealing the cable connection plug-in, ensuring water tightness.
According to some embodiments, the second accommodating portion main body 213 and the outer side surface of the interface portion 311 of the locking seal are respectively provided with a force surface (tool clamping surface), so that the subsequent rapid separation between the plurality of sealed cabins is facilitated, the testing and the use of the single cabin component are realized, the assembly difficulty is reduced, the assembly steps and time are reduced, and the testing and the use of the cabin component are realized under the design of low cost.
According to some embodiments, the second cable 13 passes through the second glue slot portion 215, and the second glue slot portion 215 has a reserved glue-filled space (glue-filled slot). When the second cable 13 penetrates, the glue filling groove can be filled with insulating waterproof sealant to seal and fix the second cable 13.
Referring to fig. 2, according to some embodiments, the locking screw cap 3 as a locking means has a central through hole 303, a top cap portion 313 and an interface portion 311 for mating locking seals. After the middle through hole 303 of the locking spiral cover 3 is sleeved on the first glue pouring groove part 111 of the upper cover 2, the second sealing piece 5 is placed in a fixed position of the top cover part 313, and the locking spiral cover is in threaded connection with threads outside the end part 211 of the second accommodating part of the lower cover by utilizing the self interface 311, so that the assembly is firm. The assembly pressure is transferred to the second sealing member 5 through the top cover portion 313 and then applied to the first middle through hole portion 113 through the second sealing member 5, so that positive pressure is provided to the sealing connection of the upper cover 1, the first sealing member 4 and the lower cover 2, and the water tightness of the sealed cavity is further ensured.
According to some embodiments, the middle through hole 303 is coaxial with the first glue-pouring groove 111, and the diameter of the middle through hole 303 is larger than the outer diameter of the first glue-pouring groove 111, so that smooth penetration is ensured, the area of the top cover 313 is not affected, and the assembly pressure is ensured.
According to some embodiments, the top cover portion 313 may have a groove or a positioning ring inside for positioning the second seal 5 for fixing the position of the second seal 5.
According to some embodiments, the top cover portion 313 and the second receiving portion end 211 may be internally and externally threaded, respectively, in which case the locking screw cap and the lower cap are fastened using a threaded connection. The top cover portion 313 and the second receiving portion end 211 may also be connected by a snap-fit connection.
According to some embodiments, fastening tabs are provided on the edge of the top cover portion 313 and jaw recesses are provided at the edge 211, both of which are self-selecting while ensuring that the mounting pressure is satisfactory.
According to some embodiments, the glue-pouring tank can be cleaned simply before the insulating sealant is poured into the glue-pouring tank, so as to remove surface dust and conductive impurities, and avoid affecting the electrical insulation property.
According to some embodiments, the sealing sleeve may be made of engineering plastic, and has the characteristics of good comprehensive performance, high impact strength, good chemical stability, good electrical performance, and the like, and has corresponding levels of high impact resistance, high heat resistance, flame retardance, reinforcement, transparency, and the like. The color range is wide, the corresponding colors of the cables can be selected for type distinction, and the material is easy to carry out injection molding, extrusion molding and blow molding processing, and has good electroplating property. And other low-cost polymer materials which can meet the use environment and realize watertight by glue filling can be used.
Fig. 3 shows a cross-sectional view of a watertight coupling device according to an exemplary embodiment of the present application.
The upper cover 1 is provided with a first glue filling groove 101, a first middle through hole 103 and a first accommodating cavity 105 which are communicated in sequence. The first cable 11 is connected to the first connection portion of the wiring plug-in unit after passing through the upper cover 1, and the first glue-pouring groove 101 is used for sealing and fixing the first cable 11.
The diameter of the first glue-pouring groove 101 is larger than that of the first middle through hole 103, and the diameter of the first glue-pouring groove 103 is larger than that of the first cable.
According to some embodiments, the cable may be an energized wire of a variety of materials. The above is exemplified, and a detailed description thereof is omitted. And selecting a proper cable type under the actual equipment function requirement and the environment requirement so as to realize the equipment function. The device can be correspondingly and adaptively adjusted according to the different wire diameters. The method is applicable to different wire types and wire diameters.
According to some embodiments, glue filling grooves are reserved according to different cable types and insulation wrapping types, so that on one hand, electrical insulation characteristics are guaranteed, on the other hand, cable positions can be fixed, and water tightness is guaranteed.
The lower cover 2 is provided with a second glue pouring groove 201, a second middle through hole 203 and a second accommodating cavity 205 which are communicated in sequence. The second cable 13 is connected to the second connection portion of the wiring plug-in unit after passing through the lower cover 2, and the second glue-pouring groove 201 is used for sealing and fixing the second cable 13.
The diameter of the second glue-pouring groove 201 is larger than that of the second middle through hole 203, and the diameter of the second middle through hole 203 is larger than that of the second cable 13.
According to some embodiments, after the upper cover 1 and the lower cover 2 are buckled, the first accommodating cavity 105 and the second accommodating cavity 205 are partially overlapped, the first accommodating cavity 105 and the second accommodating cavity 205 form a closed cavity, and the wiring plug-in units of the first cable 11 and the second cable 13 can be accommodated in the cavity.
According to some embodiments, the wiring plug-in unit can be flexibly selected according to the cable wire type and the wire diameter. On the basis of realizing reliable electrical connection, the joint resistance is reduced as much as possible.
Referring to fig. 3, the locking device 3 is a locking screw cap, wherein a middle through hole 303 is formed, the middle through hole 303 of the locking screw cap is sleeved on the upper cap 1, and the locking screw cap is in threaded connection with the lower cap 2 through an internal thread 301 and an external thread 207 of the lower cap 2, so that the upper cap 1 and the lower cap 2 are fixedly assembled.
The second seal 5 may be provided between the locking screw cap and the connection portions of the upper cap 1 and the lower cap 2.
The assembly pressure is transmitted to the second sealing element 5 through the locking screw cap, and then acts on the upper cover 1 part through the second sealing element 5, so that positive pressure is provided for sealing connection of the upper cover 1, the first sealing element 4 and the lower cover 2, and the water tightness of the sealed cavity is ensured.
According to some embodiments, the middle through hole 303 of the locking screw cap is coaxial with the upper cover 1, and the diameter of the through hole 303 is slightly larger than the outer diameter of the first glue-pouring groove part of the upper cover, so that the upper cover can be ensured to smoothly penetrate, the area of the top cover part 313 is not influenced, and the assembly pressure is ensured.
According to some embodiments, a positioning ring or groove for fixing the second seal 5 is present inside the locking screw cap 3.
According to some embodiments, the glue-pouring tank can be cleaned simply before the insulating sealant is poured into the glue-pouring tank, so as to remove surface dust and conductive impurities, and avoid affecting the electrical insulation property.
Fig. 4 shows a cross-sectional view of a watertight coupling device according to another exemplary embodiment of the present application.
The embodiment of fig. 4 is similar to the structure of fig. 3, and the same parts will not be repeated. The difference is that the locking device in the structure shown in fig. 4 is a clamping-pressing type connecting structure, and the upper cover 1 and the lower cover 2 are fixed through the clamping piece.
One end of the clamping piece can be hinged and fixed on the lower cover. In the mounting, the other end of the clip may be directly fastened to the upper cover (e.g., the upper surface of the first middle through hole 113) with force. Under the condition of ensuring that the installation pressure meets the requirement, the locking component can be selected for connection, so that the connection is convenient and quick, the technical requirement on assembly personnel is low, and the assembly time cost is low.
According to some embodiments, the watertight connecting device is convenient to install and detach, and has a simple structure and low technical requirements for installers. The functional requirements of quick assembly and disassembly, single-seal cabin part level test, use and the like can be met.
According to some embodiments, the design mechanism for separating the upper cover from the lower cover of the water-tightness connecting device effectively avoids the damage to the sealing surface and the influence on the anti-pressure performance caused by the PL line of the die.
According to some embodiments, the watertight connecting device has the advantages of small size, low material cost, low technical requirements on assembly staff, high assembly and disassembly speeds, quick assembly and disassembly, stable structure, low cost and high watertight performance compared with the existing watertight connecting device.
According to some embodiments, the watertight connecting device can also be used as an outdoor connecting device of a plurality of cables, and the reserved cable penetrating openings are only required to be adjusted to the required number of groups, and the corresponding size of the design structural member and the size of the sealing member are adjusted to be used as an underwater airtight connecting box of the plurality of cables.
According to some embodiments, the watertight coupling device may also be used in a test fixture design for testing related underwater products by a testing department.
Finally, it should be noted that the above description is only exemplary embodiments of the present application and is not intended to limit the scope of the present application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that other modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof. Any modifications, equivalent substitutions, improvements, or the like, which are within the spirit and principles of the present application, are intended to be included within the scope of the present application.

Claims (10)

1. A watertight coupling device, characterized in that it is applied to an underwater robot, comprising:
a first cable and a second cable;
a wiring plug-in connected to the first cable and the second cable to realize plug-in type electric connection between the first cable and the second cable;
and the sealing sleeve is used for fixing the first cable and the second cable and carrying out waterproof encapsulation on the wiring plug-in.
2. The water tight connection of claim 1, wherein the sealing sleeve comprises:
a lower cover;
the upper cover is buckled with the lower cover, so that a cavity for accommodating the wiring plug-in unit is formed;
and the locking device is used for locking the connection between the upper cover and the lower cover.
3. The water tight connection of claim 2, wherein the sealing sleeve further comprises;
and a first sealing member provided between the lower cover and the upper cover, so that a cavity formed between the upper cover and the lower cover is sealed.
4. The watertight coupling device as claimed in claim 2, wherein the locking means is a locking screw cap with a central through hole; after the upper cover and the lower cover are buckled, the locking spiral cover is sleeved on the upper cover and is in threaded connection with the lower cover, and the assembly structure of the upper cover and the lower cover is fixed.
5. The water tight connection of claim 4, wherein the sealing sleeve further comprises:
the second sealing component is arranged between the locking spiral cover and the upper cover.
6. The water tight connector according to claim 2, wherein the wire connector comprises a first connection portion, the upper cover has a first glue-pouring groove, a first middle through hole and a first accommodating cavity which are sequentially communicated, the first cable is connected to the first connection portion after passing through the upper cover, and glue is poured into the first glue-pouring groove to seal and fix the first cable.
7. The water tight connector according to claim 6, wherein the connector further comprises a second connecting portion, the lower cover has a second glue-pouring groove, a second middle through hole and a second receiving cavity which are sequentially communicated, the second cable is connected to the second connecting portion after passing through the lower cover, and glue is poured into the second glue-pouring groove to seal and fix the second cable.
8. A watertight coupling device as claimed in claim 3, characterized in that the lower cover and the locking screw cover each have a tool clamping surface thereon.
9. The water tight connection of claim 1, wherein the sealing sleeve is an engineering plastic material.
10. An underwater robot comprising: the watertight coupling device as claimed in any of the claims 1 to 9.
CN202311152434.9A 2023-09-07 2023-09-07 Water tightness connecting device and underwater robot Pending CN117353089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311152434.9A CN117353089A (en) 2023-09-07 2023-09-07 Water tightness connecting device and underwater robot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311152434.9A CN117353089A (en) 2023-09-07 2023-09-07 Water tightness connecting device and underwater robot

Publications (1)

Publication Number Publication Date
CN117353089A true CN117353089A (en) 2024-01-05

Family

ID=89358300

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311152434.9A Pending CN117353089A (en) 2023-09-07 2023-09-07 Water tightness connecting device and underwater robot

Country Status (1)

Country Link
CN (1) CN117353089A (en)

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