CN201234012Y - Diving electric cable sealing apparatus - Google Patents

Abstract

The utility model belongs to the technical field of cable sealing, namely: a submersible cable sealing device. And the joint is plastic-sealed with a cylindrical body that can be stuck in the female nut or male nut. The head of the electrical connecting rod is exposed, and the other end of the cable is covered with a male screw that matches the female nut or male nut. cap or female nut, the bare wire in the cable is connected to the electrical connection tube, and the outer surface of the bare wire and the electrical connection tube is plastic-sealed with a cylinder that can be stuck in the male nut or female nut. There is a sealing ring between them, the electric connection rod can be inserted into the electric connection pipe to realize the electrical connection between the electric connection rod and the electric connection pipe, and the connection between the male nut and the female nut can be tightened to seal the connection of the cable. The tails of the female nuts all have a reduced diameter. The advantages are: simple structure, easy operation, good sealing performance, and can be used as a sealing connection device for commonly used submersible cables.

Description

Submersible Cable Glands

Technical field:

The utility model belongs to the technical field of cable sealing, in particular to a submersible cable sealing device.

Background technique:

The cable sealing problem of underwater operation equipment has always been an important and difficult point in the related technical fields at home and abroad, because the sealing effect of the cable directly determines the working performance, service life and practicability of the underwater equipment. Therefore, the sealing member of the cable is For the key components of underwater cables, relevant departments at home and abroad have successively developed underwater cable sealing components that can be used in water depths below 5000m. However, for small equipment for shallow water operations, such as submersible electric pumps, the use of such sealing components has the following defects:

1. Complex structure, long operation time and high failure rate;

2. The cost is too expensive: Take the deep-water cable sealing member that can be used in 5000m water depth as an example. At present, the supplier mainly provides two sets of cable plugs and sockets, and the price of each set is generally between RMB 600 and 1,000. In this way, making a cable Just need 1200～2000 yuan, if need to use a plurality of cables on a set of equipment, then its cost is a heavy burden for general user.

Invention content:

The purpose of the utility model is to provide a submersible cable sealing device with simple structure, low cost and good reliability.

The utility model is realized in the following way: the submersible cable sealing device is characterized in that: one end of the cable is covered with a hollow female nut or male nut, the bare wire in the cable is connected with the electric connecting rod, and the bare wire and the joint A cylindrical body that can be stuck in a female nut or a male nut is plastic-encapsulated, and the head of the electric connecting rod is exposed, and the other end of the cable is covered with a male nut or a female nut that matches the female nut or a male nut. Nut, the bare wire in the cable is connected to the electrical connection pipe, and a cylinder that can be stuck in the male nut or the female nut is plastic-sealed on the periphery of the bare wire and the electrical connection pipe, and a The sealing ring, the electric connecting rod can be inserted into the electric connecting pipe to realize the electrical connection between the electric connecting rod and the electric connecting pipe, and the male nut and the female nut can be tightened so as to seal the joint of the cable. The male nut and the female nut The tail has a narrow diameter.

The above-mentioned cylindrical body is: the head is a hollow cylinder with the same outer diameter as the cylinder in the middle, and there is an exposed electrical connecting rod inside, and the tail is a small cylinder whose outer diameter is smaller than the inner diameter of the tail of the female nut or male nut. The cylinder is: the head is a head cylinder with the same outer diameter as the inner diameter of the hollow cylinder, the length of the head cylinder is equal to the depth of the hollow cylinder, and the middle part is the same as the hollow cylinder. The central cylinder of the diameter, the tail is the tail cylinder whose outer diameter is smaller than the tail inner diameter of the male nut or the female nut.

Thrust hard washers are respectively arranged between the above-mentioned female nut or male nut and the cylindrical body, and between the male nut or female nut and the cylindrical body.

Compared with the prior art, the outstanding advantages of the utility model are:

1. The utility model has the advantages of simple structure, convenient operation, low cost and good sealing performance.

2. The utility model is suitable as a sealing connection device for commonly used diving cables.

Description of drawings:

Fig. 1 is a schematic diagram of an exploded view of the utility model;

Fig. 2 is the three-dimensional schematic diagram of the structure of the female plug with cylinder 22 parts of the utility model;

Fig. 3 is the three-dimensional schematic diagram of the structure of the male plug with the cylindrical body 42 part of the utility model;

Fig. 4 is a three-dimensional schematic diagram of the connection state of the utility model after connecting the joints of the cables.

Detailed ways:

The utility model is further described below in conjunction with accompanying drawing with specific embodiment, referring to Fig. 1-4:

The submersible cable sealing device is characterized in that: one end of the cable 10 is covered with a hollow female nut 40, the bare wire 106 in the cable 10 is connected to the electrical connecting rod 104, and the bare wire 106 and the connection are plastic-sealed with a female nut that can be stuck in the female nut. The cylindrical body 42 in the nut 40, the head of the electric connection rod 104 is exposed, and the other end of the cable 10 is covered with a male nut 20 that cooperates with the female nut 40, and the bare wire 103 in the cable 10 is connected to the electric cable 10. The connecting tube 101 is connected, and the outer periphery of the bare wire 103 and the electrical connecting tube 101 is plastic-sealed with a cylinder 22 that can be stuck in the male nut 20, and a sealing ring 30 is arranged between the cylindrical body 42 and the cylinder 22, and the electrical connecting rod 104 can be inserted into the electrical connection tube 101 to make the electrical connection rod 104 and the electrical connection tube 101 electrically connected, and the female nut 40 and the male nut 20 can be tightened to seal the joint of the cable 10. The male nut 20 and The tail of the female nut 40 has a reduced diameter 201 and 401 .

The above-mentioned cylindrical body 42 is: the head is a hollow cylinder 421 with an outer diameter equal to that of the cylinder 422 in the middle, the hollow cylinder 421 has an exposed electrical connecting rod 104, and the tail is an outer diameter smaller than the inner diameter of the tail of the female nut 40 The small cylinder 423, the cylinder 22 is: the head is the same head cylinder 221 with the outer diameter and the inner diameter of the hollow cylinder 421, the length of the head cylinder 221 is the same as that of the hollow cylinder 421 The depths of the inner holes are equal, the middle part is a middle cylinder 222 with the same outer diameter as the hollow cylinder 421, and the tail part is a tail cylinder 223 whose outer diameter is smaller than the inner diameter of the tail of the male nut 20.

Between the above-mentioned female nut 40 and the middle cylinder 422 of the cylindrical body 42 and between the male nut 20 and the middle cylinder 222 of the cylinder 22, thrust hard washers—metal washers 41 and 21 are arranged respectively.

After the male nut 20 and the female nut 40 are tightened, the reduced diameters 201 and 401 at the tails of the male nut 20 and the female nut 40 can respectively seal the cylinder 22, the sealing ring 30 and the cylindrical body through the metal washers 21 and 41. 42 are pressed against each other.

Because the cylindrical body 42 of the present utility model and the cylindrical body 22 are all plastic-sealed in the joint of the cable and the electric connecting rod 104, the electric connecting pipe 101 and the bare wires 103, 106 of the cable 10, and are mutually sealed and insulated, the female plug The head cylinder 221 is inserted into the inner hole of the male hollow cylinder 421, and after the male nut 20 and the female nut 40 are tightened, due to the sealing effect of the sealing ring 30, the connection and sealing of the cable becomes easier. Easy and quick, and the structure and production process of the product are simple, the production cost is low, and it is suitable to be used as a sealing connection device for commonly used diving cables.

The above-described embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model, so: all equivalent changes made according to the shape, structure and principle of the present utility model should be covered. Within the protection scope of the present utility model.

Claims (3)

1. The submersible cable sealing device is characterized in that: one end of the cable is covered with a hollow female nut or male nut, the bare wire in the cable is connected to the electric connecting rod, and there is a plastic seal between the bare wire and the connection that can be stuck in the female nut. The cylindrical body in the nut or the male nut, the head of the electric connecting rod is exposed, and the other end of the cable is covered with a male nut or a female nut that matches the female nut or the male nut. The bare wire is connected to the electrical connection tube, and a cylinder that can be stuck in the male nut or the female nut is plastic-sealed on the periphery of the bare wire and the electrical connection tube, and a sealing ring is arranged between the cylindrical body and the cylinder, and the electrical connection rod Inserting into the electrical connecting tube can make the electrical connecting rod and the electrical connecting tube electrically connected, and the male nut and the female nut can be tightened to seal the joint of the cable. . 2. The submersible cable sealing device according to claim 1, characterized in that: the cylindrical body is: the head is a hollow cylinder with the same outer diameter as the middle cylinder, and there is an exposed electrical connecting rod inside, and the tail is It is a small cylinder whose outer diameter is smaller than the inner diameter of the tail of the female nut or the male nut, and the cylinder is: the head is a head cylinder whose outer diameter is the same as the inner diameter of the hollow cylinder, and the head cylinder The length of the body is equal to the depth of the hollow cylinder, the middle part is a middle cylinder with the same outer diameter as the hollow cylinder, and the tail is a tail cylinder whose outer diameter is less than the tail inner diameter of the male nut or the female nut. 3. The submersible cable sealing device according to claim 1 or 2, characterized in that: between the female or male nut and the cylindrical body, or between the male or female nut and the cylinder Thrust hard washers are respectively provided.

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