Submersible pump cable sealing structure

Abstract

The utility model discloses a submersible pump cable sealing structure. The submersible pump cable sealing structure comprises a cable sleeve, an insulation deconcentrator and a four-core rubber cable. The cable sleeve main body is of a cylindrical structure, the left end of the cable sleeve is provided with a deconcentrator mounting hole, the right end of the cable sleeve is provided with a cable insertion hole, and the deconcentrator mounting hole is communicated with the cable insertion hole. The insulating deconcentrator is inserted into the deconcentrator mounting hole, a main body of the insulating deconcentrator is a cylinder, and four threading holes are formed in the insulating deconcentrator in the axial direction. The four-core rubber cable is inserted into the cable insertion hole, and four cable cores obtained by stripping the outermost protection layer of the four-core rubber cable respectively pass through the threading holes. The insulating deconcentrator and the cable sleeve are filled with epoxy resin. According to the device provided by the utility model, water is prevented from permeating into the submersible pump from a gap between the cable and the submersible pump; and water is prevented from seeping into the submersible pump along the cable sheath after the sealing performance of the cable sheath is damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of submersible pumps, and in particular relates to a cable sealing structure for a submersible pump. Background Art

[0002] Submersible pumps need to be powered by external cables, so the connection between the cables and the submersible pumps needs to be sealed to prevent water and moisture from entering the submersible pumps, thereby ensuring the normal operation and safety of the submersible pumps. Submersible pumps usually work in underwater environments. If they are not sealed, water or moisture may penetrate into the submersible pumps, causing the following problems, such as: moisture entering the cable will cause the insulation performance of the cable to deteriorate, and may even cause a short circuit in the cable, leading to electrical failures. Moisture will also enter the submersible pump along the cable, which will not only damage the submersible pump itself, but may also have a serious impact on the entire circuit system; if the wires inside the cable are exposed to water, leakage is likely to occur, which will not only damage the equipment, but may also pose a risk of electric shock to the operator.

[0003] Therefore, the cable of the submersible pump must be effectively sealed to ensure insulation and waterproof performance, thereby ensuring the safe and stable operation of the submersible pump. During the sealing process, special insulating materials, waterproof glue, etc. are usually used to ensure that the cable can maintain good working condition even in harsh underwater environments. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a submersible pump cable sealing structure, including a cable sleeve, an insulating divider and a four-core rubber cable.

[0005] The main body of the cable cover is a cylindrical structure. A separator installation hole is provided at the left end of the cable cover, and a cable insertion hole is provided at the right end of the cable cover. The separator installation hole is communicated with the cable insertion hole.

[0006] Furthermore, a cable sleeve mounting plate is provided at the edge of the splitter mounting hole, and a mounting hole is provided on the cable sleeve mounting plate.

[0007] The insulating wire splitter is inserted into the wire splitter installation hole. The insulating wire splitter body is a cylinder. The insulating wire splitter is provided with four threading holes in the axial direction.

[0008] Furthermore, the cable sheath and the insulating divider are both made of rubber.

[0009] The four-core rubber cable is inserted into the cable insertion hole, and the four cable cores obtained by stripping the outermost protective layer of the four-core rubber cable pass through the threading holes respectively.

[0010] Furthermore, the cable core comprises a wire sheath and a copper core, and the wire sheath of the cable core is partially peeled off at a position where the cable core passes through the wire threading hole to expose the copper core.

[0011] The length of the exposed copper core is smaller than the length of the threading hole.

[0012] The insulating divider and the cable sheath are filled with epoxy resin.

[0013] The utility model provides a submersible pump cable sealing structure, which has the following advantages: it prevents water from penetrating into the submersible pump through the gap between the cable and the submersible pump; it prevents water from penetrating into the submersible pump through the cable sheath after the sealing of the cable sheath is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the disassembled structure of a submersible pump cable sealing structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the appearance of an insulating wire splitter of a submersible pump cable sealing structure of the utility model;

[0017] Figure 3 This is a left side view of a submersible pump cable sealing structure of the utility model;

[0018] Figure 4 The utility model is a front view of a submersible pump cable sealing structure.

[0019] Explanation of the reference numerals in the figure: 1. Cable sleeve, 101. Splitter mounting hole, 102. Cable insertion hole, 103. Cable sleeve mounting plate, 2. Insulated splitter, 201. Threading hole, 3. Four-core rubber cable, 301. Cable core, 3011. Wire sheath, 3012. Copper core. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment 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.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an embodiment of the utility model is a sealing structure for a submersible pump cable, comprising a cable sleeve 1, an insulating divider 2 and a four-core rubber cable 3.

[0023] The main body of the cable cover 1 is a cylindrical structure. A splitter installation hole 101 is provided at the left end of the cable cover 1 , and a cable insertion hole 102 is provided at the right end of the cable cover 1 . The splitter installation hole 101 is communicated with the cable insertion hole 102 .

[0024] Preferably, a cable sleeve mounting plate 103 is provided at the edge of the splitter mounting hole 101 , and a mounting hole 1031 is provided on the cable sleeve mounting plate 103 .

[0025] The insulating splitter 2 is inserted into the splitter installation hole 101. The main body of the insulating splitter 2 is a cylinder. The insulating splitter 2 is provided with four threading holes 201 in the axial direction.

[0026] Preferably, the cable sheath 1 and the insulating divider 2 are both made of rubber material to improve their insulation performance.

[0027] The four-core rubber cable 3 is inserted into the cable insertion hole 102 , and the four cable cores 301 obtained by stripping the outermost protective layer of the four-core rubber cable 3 pass through the threading holes 201 respectively.

[0028] Preferably, the cable core 301 includes a cable sheath 3011 and a copper core 3012. The cable core 301 is partially peeled off the cable sheath 3011 at the position where it passes through the threading hole 201 to expose the copper core 3012. The threading hole 201 separates the copper core 3012 to avoid short circuit.

[0029] The length of the exposed copper core 3012 is smaller than the length of the threading hole 201 , ensuring that the copper cores 3012 do not contact each other.

[0030] The insulating divider 2 and the cable sheath 1 are filled with epoxy resin. The fluidity of the epoxy resin is used to seal the gap between the insulating divider 2 and the cable sheath 1 and the gap between the wire sheath 3011 and the copper core 3012 to prevent water from entering the submersible pump through the above positions.

[0031] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A submersible pump cable sealing structure, characterized in that: It comprises a cable sleeve (1), an insulating divider (2) and a four-core rubber cable (3); The main body of the cable cover (1) is a cylindrical structure, the left end of the cable cover (1) is provided with a separator installation hole (101), the right end of the cable cover (1) is provided with a cable insertion hole (102), and the separator installation hole (101) is communicated with the cable insertion hole (102); The insulating wire splitter (2) is inserted into the wire splitter mounting hole (101); the main body of the insulating wire splitter (2) is a cylinder; and the insulating wire splitter (2) is provided with four threading holes (201) in the axial direction; The four-core rubber cable (3) is inserted into the cable insertion hole (102), and the four cable cores (301) obtained by stripping the outermost protective layer of the four-core rubber cable (3) are respectively passed through the threading holes (201); The insulating divider (2) and the cable sheath (1) are injected with epoxy resin.

2. A submersible pump cable sealing structure according to claim 1, characterized in that: A cable sleeve mounting plate (103) is provided at the edge of the splitter mounting hole (101), and a mounting hole (1031) is provided on the cable sleeve mounting plate (103).

3. A submersible pump cable sealing structure according to claim 1, characterized in that: The cable sheath (1) and the insulating wire divider (2) are both made of rubber.

4. A submersible pump cable sealing structure according to claim 1, characterized in that: The cable core (301) comprises a wire sheath (3011) and a copper core (3012); the cable core (301) is partially peeled off the wire sheath (3011) at the position where it passes through the threading hole (201) to expose the copper core (3012).

5. A submersible pump cable sealing structure according to claim 4, characterized in that: The length of the exposed copper core (3012) is smaller than the length of the threading hole (201).

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