Waterproof cable for submersible motor

Abstract

The utility model relates to the technical field of cables, and discloses a waterproof cable for a submersible motor, which comprises a first protective layer, the inner surface of the first protective layer is fixedly connected with a first waterproof layer, the inner surface of the first waterproof layer is fixedly connected with a reinforcing layer, and the inner surface of the reinforcing layer is fixedly connected with a second protective layer. The inner surface of the second protection layer is fixedly connected with a shielding layer, and the inner surface of the shielding layer is fixedly connected with an inner lining layer. According to the waterproof cable for the submersible motor, the cable is waterproof through the first protection layer and the first waterproof layer, and meanwhile, the protection performance of the cable is improved through the reinforcing layer; and then through cooperation of a lining layer, a cross-shaped rubber partition plate, a water absorption expansion water stop strip, a third protection layer and a second waterproof layer, the waterproof performance of the cable is greatly improved, and the service life of the waterproof cable is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a waterproof cable for a submersible motor. Background Art

[0002] Submersible pumps are used in our daily life. Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit dives into the water to extract groundwater to the surface. It is used for domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship load adjustment, and fountain landscape. Submersible pumps generally use submersible motors as power, and then submersible motors need to use waterproof cables for power transmission. Currently available waterproof cables are generally composed of high-density rubber sleeves, water-blocking tape layers, insulating layers and wires. They have a simple structure and low cost. However, due to the small number of waterproof layers, the waterproof performance is low after long-term use. At the same time, the surface support and wear resistance are low, resulting in a short service life of the cable. For this reason, we propose a wear-resistant waterproof cable for submersible motors. Utility Model Content

[0003] The utility model aims to provide a waterproof cable for a submersible motor to solve the deficiencies in the above-mentioned background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A waterproof cable for a submersible motor comprises a first protective layer, the inner surface of the first protective layer is fixedly connected to a first waterproof layer, the inner surface of the first waterproof layer is fixedly connected to a reinforcing layer, the inner surface of the reinforcing layer is fixedly connected to a second protective layer, the inner surface of the second protective layer is fixedly connected to a shielding layer, the inner surface of the shielding layer is fixedly connected to an inner lining layer, a cross rubber diaphragm is fixedly connected inside the inner lining layer, a cable core is fixedly connected inside the cross rubber diaphragm, and a water-absorbing and swelling waterstop strip is fixedly connected inside the cross rubber diaphragm.

[0006] As a further solution of the utility model: the cable core body includes a copper wire core, the outer surface of the copper wire core is fixedly connected with an insulating rubber layer, the outer surface of the insulating rubber layer is fixedly connected with a second waterproof layer, and the outer surface of the second waterproof layer is fixedly connected with a third protective layer.

[0007] As a further solution of the utility model: the third protective layer is hard rubber.

[0008] As a further solution of the utility model: the first protective layer and the second protective layer are both made of hard rubber, and the reinforcement layer is a steel wire armor wrapped around the outer surface of the second protective layer.

[0009] As a further solution of the utility model: the shielding layer is a composite aluminum foil coating layer.

[0010] As a further solution of the utility model: the inner lining layer is elastic rubber.

[0011] As a further solution of the utility model: a plurality of supporting wear-resistant strips are fixedly connected to the outer surface of the first protective layer, and the outer surfaces of the supporting wear-resistant strips have rounded corners.

[0012] Beneficial effects of the utility model:

[0013] (1) The cable is waterproofed by the first protective layer and the first waterproof layer, and the protectiveness of the cable is improved by the reinforcement layer. Subsequently, the inner lining layer, the cross rubber partition, the water-absorbing and swelling water stop strip, the third protective layer and the second waterproof layer are combined to greatly improve the waterproof performance of the cable and further improve the service life of the waterproof cable.

[0014] (2) The wear resistance of the cable surface is improved by multiple supporting wear-resistant strips on the surface of the first protective layer. At the same time, rounded corners are provided on the surface of the supporting wear-resistant strips to facilitate the sliding of the cable on the ground. At the same time, the support of the supporting wear-resistant strips improves the cable's anti-support ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0017] Figure 2 This utility model Figure 1 A is an enlarged view of the middle image.

[0018] In the figure: 1. First protective layer; 2. First waterproof layer; 3. Reinforcement layer; 4. Second protective layer; 5. Shielding layer; 6. Lining layer; 7. Cross rubber partition; 8. Cable core; 9. Copper wire core; 10. Insulating rubber layer; 11. Second waterproof layer; 12. Third protective layer; 13. Support wear-resistant strip; 14. Water-absorbing and swelling waterstop strip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 2As shown, the utility model is a waterproof cable for submersible motors, comprising a first protective layer 1, the inner surface of the first protective layer 1 is fixedly connected with a first waterproof layer 2, the inner surface of the first waterproof layer 2 is fixedly connected with a reinforcing layer 3, the inner surface of the reinforcing layer 3 is fixedly connected with a second protective layer 4, the inner surface of the second protective layer 4 is fixedly connected with a shielding layer 5, the inner surface of the shielding layer 5 is fixedly connected with an inner lining layer 6, the inner lining layer 6 is fixedly connected with a cross rubber partition 7, the cross rubber partition 7 is fixedly connected with a cable core 8, and the cross rubber partition 7 is fixedly connected with a water-absorbing and swelling waterstop strip 14.

[0021] The first protective layer 1 is used for preliminary protection from the outside world, and then the first waterproof layer 2 is used for waterproofing. Then the cable body is reinforced by the reinforcement layer 3 of the steel wire armor to prevent puncture from the outside world, and then the second protective layer 4 is used for protection again. Then the composite aluminum foil coating layer is used to resist electromagnetic interference near the submersible motor, thereby improving the stability of power transmission. Then the elastic rubber lining layer 6 is used to elastically deform and buffer external piercing objects to prevent puncture and improve waterproofness. If punctured, the water-absorbing and swelling waterstop strip 14 in the cross rubber partition 7 absorbs water and swells to block water from entering the cable core 8. At the same time, the cross rubber partition 7 is used to separate the cable cores 8 to achieve waterproof separation between the cable cores 8, thereby greatly improving the waterproof performance of the cable and further improving the service life of the waterproof cable.

[0022] The cable core 8 includes a copper core 9 , an insulating rubber layer 10 is fixedly connected to the outer surface of the copper core 9 , a second waterproof layer 11 is fixedly connected to the outer surface of the insulating rubber layer 10 , and a third protective layer 12 is fixedly connected to the outer surface of the second waterproof layer 11 .

[0023] When water enters the cross rubber partition 7, it is protected by the third protective layer 12 on the cable core 8, and then waterproofed again by the second waterproof layer 11 and the insulating rubber layer 10, thereby further improving the waterproof performance of the cable.

[0024] The third protective layer 12 is made of hard rubber, which improves the protective effect of the cable.

[0025] The first protective layer 1 and the second protective layer 4 are both made of hard rubber, and the reinforcement layer 3 is a steel wire armor wrapped around the surface of the second protective layer 4. The first protective layer 1 and the second protective layer 4 made of hard rubber are used to improve the protection performance of the cable.

[0026] The shielding layer 5 is a composite aluminum foil coating layer, and the composite aluminum foil coating layer is used to improve the anti-electromagnetic interference performance of the cable.

[0027] The inner lining layer 6 is made of elastic rubber, and the waterproof effect of the inner lining layer 6 is improved by making the inner lining layer 6 of elastic rubber.

[0028] A plurality of supporting wear-resistant strips 13 are fixedly connected to the outer surface of the first protective layer 1 , and the outer surfaces of the supporting wear-resistant strips 13 have rounded corners.

[0029] The wear resistance of the cable surface is improved by multiple support wear-resistant strips 13 on the surface of the first protective layer. At the same time, rounded corners are provided on the surface of the support wear-resistant strips 13 to facilitate the sliding of the cable on the ground. At the same time, the support of the support wear-resistant strips 13 improves the cable's anti-support ability.

[0030] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A waterproof cable for a submersible motor, comprising a first protective layer (1), characterized in that: The inner surface of the first protective layer (1) is fixedly connected to the first waterproof layer (2), the inner surface of the first waterproof layer (2) is fixedly connected to the reinforcement layer (3), the inner surface of the reinforcement layer (3) is fixedly connected to the second protective layer (4), the inner surface of the second protective layer (4) is fixedly connected to the shielding layer (5), the inner surface of the shielding layer (5) is fixedly connected to the inner lining layer (6), the inner lining layer (6) is fixedly connected to a cross rubber partition (7), the inner cross rubber partition (7) is fixedly connected to a cable core (8), and the inner cross rubber partition (7) is fixedly connected to a water-absorbing and swelling water stop strip (14).

2. A waterproof cable for a submersible motor according to claim 1, characterized in that: The cable core (8) comprises a copper wire core (9), the outer surface of the copper wire core (9) is fixedly connected to an insulating rubber layer (10), the outer surface of the insulating rubber layer (10) is fixedly connected to a second waterproof layer (11), and the outer surface of the second waterproof layer (11) is fixedly connected to a third protective layer (12).

3. A waterproof cable for a submersible motor according to claim 2, characterized in that: The third protective layer (12) is hard rubber.

4. A waterproof cable for a submersible motor according to claim 1, characterized in that: The first protective layer (1) and the second protective layer (4) are both made of hard rubber, and the reinforcement layer (3) is a steel wire armor wrapped around the outer surface of the second protective layer (4).

5. A waterproof cable for a submersible motor according to claim 1, characterized in that: The shielding layer (5) is a composite aluminum foil coating layer.

6. A waterproof cable for a submersible motor according to claim 1, characterized in that: The inner lining layer (6) is elastic rubber.

7. A waterproof cable for a submersible motor according to claim 1, characterized in that: A plurality of supporting wear-resistant strips (13) are fixedly connected to the outer surface of the first protective layer (1), and the outer surfaces of the supporting wear-resistant strips (13) have rounded corners.

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