Plug for underwater cable

Abstract

The utility model relates to the technical field of plugs for cables, and discloses a plug for an underwater cable, which comprises a first connector, a second connector and a limiting piece, the second connector and the first connector are plugged to realize cable communication, and the limiting piece comprises a handle and a pull rod; the handle is rotationally installed on the second connector, a pull rod is connected to the handle, the other end of the pull rod is clamped to the first connector, and the handle pulls the first connector and the second connector to be close to each other through the pull rod. According to the utility model, the port of the second connector is sleeved on the port of the first connector, and meanwhile, the other end of the pull rod is clamped on the first connector, so that the first connector is completely matched with the second connector, and force operation under water is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable plug -pulling head for underwater cable, in particular to a cable plug -pulling head for underwater cable. BACKGROUND

[0002] Traditional cable connection plug has relatively mature technology in land environment. For example, common plug is connected through simple plug -in mode, and is fixed through screw or buckle to ensure the stability of connection. However, these connection modes face many challenges in underwater environment. In underwater, due to the resistance of water, pressure and special requirements of underwater operation, ordinary plug connection mode is not applicable.

[0003] Many existing underwater plugs are either too complex to connect, need special tools to assist, or are not firm enough to be loosened by water flow and other external forces. In addition, the operator floats in the water and it is not easy to find the force point, so it is not convenient to exert force during insertion. UTILITY MODEL CONTENT

[0004] The purpose of the present application is to provide a cable plug -pulling head for underwater cable, which solves the problem of inconvenient force exertion during insertion of the existing cable plug -pulling head for underwater cable.

[0005] To solve the above technical problems, the utility model is realized through the following technical scheme:

[0006] The utility model relates to a cable plug -pulling head for underwater cable, which solves the problem of inconvenient force exertion during insertion of the existing cable plug -pulling head for underwater cable.

[0007] The first connecting head is connected with the second connecting head through the limiting piece.

[0008] The second connecting head is connected with the first connecting head through the limiting piece.

[0009] The limiting piece comprises a handle and a pull rod, the handle is rotatably installed on the second connecting head, the handle is connected with the pull rod, and the other end of the pull rod is clamped on the first connecting head.

[0010] The handle pulls the first connecting head and the second connecting head to approach each other through the pull rod.

[0011] During installation, the port of the second connecting head is sleeved on the port of the first connecting head, the other end of the pull rod is clamped on the first connecting head, and the handle is pushed to one side of the second connecting head, so that the port of the first connecting head can be deeply inserted into the interior of the second connecting head until the handle is completely attached to the surface of the second connecting head, and the first connecting head and the second connecting head are completely matched.

[0012] When the existing joint is installed underwater, an operator needs to push the second connecting head to be sleeved on the first connecting head, but it is not easy to find the force point because the operator floats in the water, and it is inconvenient to exert force during pushing.

[0013] Further, the first connecting head comprises a first sleeve, a middle part of the first sleeve is provided with a convex ring, one side of the first sleeve is provided with an external thread, an end of the first sleeve provided with the external thread is inserted into the inside of the cabinet body and is installed in cooperation with a fastening nut, a conductive column fixed in the fastening nut extends into the first sleeve, a first stop ring and a first spring are arranged in the first sleeve and are sleeved on the end of the conductive column, and the first stop ring closes the annular groove formed by the end of the conductive column and the first sleeve.

[0014] When the first connecting head and the second connecting head are not connected, the first stop ring closes the port of the first sleeve and the conductive column, so that seawater is prevented from entering the inside of the first sleeve, when the first sleeve is installed, the first sleeve and the fastening nut are respectively attached to the surface of the cabinet body by tightening the fastening nut, and the sealing effect is achieved, and the conductive column is electrically connected with the cable in the inside of the cabinet body.

[0015] Further, the second connecting head comprises a second sleeve, a sealing sleeve is arranged at one end of the second sleeve, a cable is fixed in the sealing sleeve, a conductive sleeve is connected to the end of the cable, an insulating sleeve is sleeved on the outer side of the conductive sleeve, the insulating sleeve is arranged in the inside of the second sleeve, a third spring and a cover body are arranged in the conductive sleeve, and the third spring pushes the cover body to close the port of the insulating sleeve.

[0016] The cable is electrically connected with the conductive sleeve, an insulating pad is arranged in the inside of the conductive sleeve, the insulating pad is arranged at the bottom of the third spring, the third spring is fixedly connected with the cover body, and the cover body is an insulating column body.

[0017] An annular groove is formed between the insulating sleeve and the second sleeve, a second spring and a second stop ring are arranged in the annular groove, and the second spring pushes the second stop ring to close the port of the annular groove.

[0018] The port of the insulating sleeve is inwardly contracted to form a first convex ring, the first convex ring limits the cover body, the port of the second sleeve is inwardly contracted to form a second convex ring, and the second convex ring limits the second stop ring.

[0019] The outer side of the second sleeve is provided with a pin rod on both sides, the end of the handle is sleeved on the pin rod, and pull rods are movably connected to both sides of the handle.

[0020] Further, the end of the pull rod is provided with a bayonet, and the convex ring of the first sleeve is provided with a column body on both sides.

[0021] The utility model has the following beneficial effects:

[0022] The utility model discloses the port of second connecting head is sleeved on the port of first connecting head, and the other end of pull rod is connected on first connecting head simultaneously, realize the complete cooperation between first connecting head and second connecting head, facilitate the operation of power under water.

[0023] Of course, it is not necessary for any product embodying the utility model to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawings of the embodiment to introduce briefly, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0025] Figure 1 It is the whole schematic diagram of the utility model;

[0026] Figure 2 It is the first connecting head schematic diagram of the utility model;

[0027] Figure 3 It is the first connecting head cutaway schematic diagram of the utility model;

[0028] Figure 4 It is the second connecting head schematic diagram of the utility model;

[0029] Figure 5 It is the second connecting head cutaway schematic diagram of the utility model;

[0030] Figure 6 It is the opening schematic diagram of the utility model;

[0031] Figure 7 It is the plug installation schematic diagram of the utility model;

[0032] In the drawings, the component list represented by each sign is as follows:

[0033] In the drawings: 1, first connecting head;101, first sleeve;102, fastening nut;103, cylinder;104, conductive column;105, first blocking ring;106, first spring;2, second connecting head;201, second sleeve;202, pin rod;203, sealing sleeve;204, cable;205, conductive sleeve;206, insulating sleeve;207, second blocking ring;208, second spring;209, third spring;210, cover;3, limiting piece;301, handle;302, pull rod;303, bayonet;4, cabinet. DETAILED DESCRIPTION

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-7 As shown, this utility model is a plug for underwater cables, comprising:

[0036] First connector 1;

[0037] The second connector 2 is inserted into the first connector 1 to achieve cable connection;

[0038] The limiting component 3 includes a handle 301 and a pull rod 302; the handle 301 is rotatably mounted on the second connector 2, and the pull rod 302 is connected to the handle 301, with the other end of the pull rod 302 being snapped into the first connector 1.

[0039] The handle 301 pulls the first connector 1 and the second connector 2 closer together via the lever 302.

[0040] During installation, the port of the second connector 2 is fitted onto the port of the first connector 1, and the other end of the pull rod 302 is snapped onto the first connector 1. Pushing the handle 301 to one side of the second connector 2 allows the port of the first connector 1 to penetrate into the interior of the second connector 2 until the handle 301 is completely fitted against the surface of the second connector 2, achieving a complete fit between the first connector 1 and the second connector 2.

[0041] After installation, the limit component 3 is used to limit the movement and prevent it from becoming loose.

[0042] To solve the problem of underwater installation of existing connectors, operators need to push the second connector 2 onto the first connector 1. Since the operators are floating in the water, it is not easy to find a point of leverage, and it is not convenient to exert force during the pushing process.

[0043] The first connector 1 includes a first sleeve 101. The first sleeve 101 has a convex ring in the middle and an external thread on one side. The end of the first sleeve 101 with the external thread is inserted into the cabinet 4 and is installed in conjunction with the fastening nut 102. The conductive post 104 fixed inside the fastening nut 102 extends into the first sleeve 101. The first sleeve 101 has a first retaining ring 105 and a first spring 106 sleeved on the end of the conductive post 104. The first retaining ring 105 closes the annular groove formed between the conductive post 104 and the port of the first sleeve 101.

[0044] When the first connector 1 and the second connector 2 are not connected, the first blocking ring 105 blocks the electrically-conductive column 104 and the port of the first sleeve 101, preventing seawater from entering the interior of the first sleeve 101. When the first sleeve 101 is installed, the fastening nut 102 is tightened, and the first sleeve 101 and the fastening nut 102 are respectively tightly attached to the surface of the cabinet 4, achieving a sealing effect. The electrically-conductive column 104 is electrically connected to the cable inside the cabinet 4.

[0045] The second connector 2 comprises a second sleeve 201, one end of the second sleeve 201 is provided with a sealing sleeve 203, the sealing sleeve 203 is fixedly provided with a cable 204, the cable 204 is provided with an electrically-conductive sleeve 205 at the end thereof, the electrically-conductive sleeve 205 is provided with an insulating sleeve 206 on the outer side thereof, the insulating sleeve 206 is located inside the second sleeve 201, the electrically-conductive sleeve 205 is provided with a third spring 209 and a cover 210, the third spring 209 pushes the cover 210 to close the port of the insulating sleeve 206;

[0046] The cable 204 is electrically connected to the electrically-conductive sleeve 205, the electrically-conductive sleeve 205 is provided with an insulating pad inside, the insulating pad is located at the bottom of the third spring 209, the third spring 209 is fixedly connected to the cover 210, and the cover 210 is an insulating column;

[0047] The insulating sleeve 206 and the second sleeve 201 form a ring groove therebetween, the ring groove is provided with a second spring 208 and a second blocking ring 207, the second spring 208 pushes the second blocking ring 207 to close the port of the ring groove;

[0048] The port of the insulating sleeve 206 is inwardly contracted to form a first protruding ring, the first protruding ring limits the cover 210, and the port of the second sleeve 201 is inwardly contracted to form a second protruding ring, the second protruding ring limits the second blocking ring 207.

[0049] The outer side of the second sleeve 201 is provided with a pin 202 on both sides thereof, the end of a handle 301 is sleeved on the pin 202, and the handle 301 is movably connected to a pull rod 302 on both sides thereof.

[0050] The end of the pull rod 302 is provided with a bayonet 303, the protruding ring of the first sleeve 101 is provided with a column 103 on both sides thereof, and the bayonet 303 is sleeved on the column 103.

[0051] In use, the port of the second connector 2 is sleeved on the port of the first connector 1, the other end of the pull rod 302 is clamped on the first connector 1, the handle 301 is pushed to one side of the second connector 2, until the handle 301 is completely attached to the surface of the second connector 2, achieving complete cooperation between the first connector 1 and the second connector 2.

[0052] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A plug for an underwater cable, characterized in that The utility model relates to a cable connecting device, including: First connecting head (1); Second connecting head (2), and the second connecting head (2) is inserted between first connecting head (1) and realizes cable communication; Limiting piece (3) contains handle (301) and pull rod (302);The handle (301) rotation is installed on second connecting head (2), and the handle (301) is connected with pull rod (302), and the other end of pull rod (302) is clamped on first connecting head (1); The handle (301) is pulled first connecting head (1) and second connecting head (2) by pull rod (302) and is close to each other.

2. An underwater cable plug-in connector according to claim 1, characterized in that: The first sleeve (101) of first connecting head (1) is equipped with the convex ring in the middle part, and one side of the first sleeve (101) is equipped with external thread; The end of the first sleeve (101) with external thread is inserted into the inside of cabinet body (4) and is installed in cooperation with fastening nut (102); The electrically conductive column (104) fixed in fastening nut (102) extends into the first sleeve (101), and the first sleeve (101) is equipped with the first blocking ring (105) and the first spring (106) sleeve joint in the end of electrically conductive column (104); The first blocking ring (105) closes the annular groove formed by electrically conductive column (104) and the first sleeve (101) port.

3. A plug for a subsea cable according to claim 2, characterised in that: Second connecting head (2) includes second sleeve (201), and one end of second sleeve (201) is provided with sealing sleeve (203); The cable (204) is fixed in sealing sleeve (203), and the end of cable (204) is connected with electrically conductive sleeve (205), the outer side of electrically conductive sleeve (205) is sleeve jointed with insulating sleeve (206), and insulating sleeve (206) is located in the inside of second sleeve (201); Third spring (209) and cover (210) are installed in electrically conductive sleeve (205), and third spring (209) pushes cover (210) to close the port of insulating sleeve (206).

4. An underwater cable plug-in connector according to claim 3, characterised in that: The annular groove is formed between insulating sleeve (206) and second sleeve (201), and second spring (208) and second blocking ring (207) are installed in the annular groove, and second spring (208) pushes second blocking ring (207) to close the port of annular groove.

5. An underwater cable plug-in connector according to claim 4, characterised in that: The outer side of second sleeve (201) is provided with pin rod (202) on both sides; The end of handle (301) is sleeve jointed on pin rod (202); Pull rod (302) is movably connected on both sides of handle (301).

6. An underwater cable plug-in connector according to claim 5, characterised in that: The end of pull rod (302) is provided with bayonet (303); The convex ring of first sleeve (101) is provided with column body (103) on both sides, and bayonet (303) is sleeve jointed on column body (103).

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