Submersible pump cable sealing structure

Abstract

The utility model discloses a submersible pump cable sealing structure, which relates to the field of submersible pump cables, and comprises an access cable and an outgoing cable, the opposite ends of the access cable and the outgoing cable are provided with a plurality of cable cores, one end of each cable core is connected with a copper wiring terminal, and the other end of each cable core is connected with a copper wire. Rubber sheaths are arranged on the outer sides of the incoming cable and the outgoing cable, and resin injection cavities are formed in the rubber sheaths. According to the utility model, the wire cores on the incoming cable and the outgoing cable are respectively inserted into the rubber sheath, so that the copper wiring terminals on the two wire cores contact with each other, the connecting sleeves on the incoming cable and the outgoing cable are also inserted into the rubber sheath, and the resin is injected into the resin injection cavity on the rubber sheath, so that the resin injection cavity is formed in the rubber sheath. And the resin in the resin injection cavity is diffused into the annular groove on the connecting sleeve, so that the resin in the resin injection cavity and the resin in the annular groove form a whole, and the pulling resistance between the access cable and the outgoing cable can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of submersible pump cables, in particular to a sealing structure for submersible pump cables. Background Art

[0002] Submersible pump is an important equipment for deep well water extraction. When in use, the whole unit dives into the water to extract groundwater to the surface. It is used for domestic water, mine rescue, industrial cooling, farmland irrigation, and fountain landscape. It can also be used to extract groundwater from deep wells. It can also be used in water extraction projects such as rivers, reservoirs, and canals. It is mainly used for farmland irrigation and water for humans and livestock in mountainous areas. It can also be used for central air-conditioning cooling, heat pump units, cold pump units, cities, factories, railways, mines, and construction site drainage.

[0003] At present, when connecting a cable to a submersible pump, the core of the cable is usually connected by winding the core of the cable with the core of the submersible pump and then wrapping it with a rubber sheath. However, due to the complex working environment of the submersible sewage pump, the cable and the submersible pump are easily pulled against each other, causing the rubber sheath used for the connection to fall off, exposing the cable core to water and damaging the submersible sewage pump.

[0004] Therefore, it is necessary to invent a submersible pump cable sealing structure to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a submersible pump cable sealing structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a submersible pump cable sealing structure, including an incoming cable and an outgoing cable, wherein the incoming cable and the outgoing cable are provided with a plurality of wire cores at opposite ends, one end of the wire core is connected to a copper terminal, the outside of the incoming cable and the outgoing cable is provided with a rubber sheath, a resin injection cavity is provided inside the rubber sheath, the outside of the incoming cable and the outgoing cable are hot-melt connected with a connecting sleeve, a plurality of annular grooves are provided on the outside of the connecting sleeve, and the annular grooves are connected to the resin injection cavity.

[0007] Preferably, a separation sleeve is provided in the rubber sheath, a plurality of through slots are provided in the separation sleeve, and the number of the through slots is the same as the number of the wire cores.

[0008] Preferably, a mounting portion is connected to the outer side of the rubber sheath, a mounting hole is provided on the surface of the mounting portion, a pressing sleeve is provided on the outer side of the access cable, and a locking hole corresponding to the mounting hole is provided on the surface of the pressing sleeve.

[0009] Technical effects and advantages of the utility model:

[0010] By inserting the wire cores on the incoming cable and the outgoing cable into the rubber sheath respectively, the copper terminals on the two wire cores are in contact, and the connecting sleeves on the incoming cable and the outgoing cable are also inserted into the rubber sheath, and by injecting resin into the resin injection cavity on the rubber sheath, the resin in the resin injection cavity diffuses into the annular groove on the connecting sleeve, so that the resin injection cavity and the resin in the annular groove form a whole, the tensile resistance between the incoming cable and the outgoing cable can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] In the figure: 1. Incoming cable; 2. Outgoing cable; 3. Wire core; 4. Copper terminal; 5. Rubber sheath; 6. Resin injection cavity; 7. Connecting sleeve; 8. Annular groove; 9. Separating sleeve; 10. Mounting part; 11. Pressing sleeve. DETAILED DESCRIPTION

[0013] 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 in 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.

[0014] The utility model provides Figure 1 A submersible pump cable sealing structure shown in the figure comprises an incoming cable 1 and an outgoing cable 2, wherein the incoming cable 1 and the outgoing cable 2 are both provided with a plurality of wire cores 3 at opposite ends, one end of the wire core 3 is connected with a copper terminal 4, a rubber sheath 5 is provided on the outside of the incoming cable 1 and the outgoing cable 2, a resin injection cavity 6 is provided in the rubber sheath 5, a connecting sleeve 7 is hot-melt connected to the outside of the incoming cable 1 and the outgoing cable 2, a plurality of annular grooves 8 are provided on the outside of the connecting sleeve 7, and the annular grooves 8 are communicated with the resin injection cavity 6, and the ingoing cable 1 and the outgoing cable 2 are connected to the outside of the connecting sleeve 7 by connecting the ingoing cable 1 and the outgoing cable 2. The wire cores 3 are respectively inserted into the rubber sheath 5, so that the copper terminals 4 on the two wire cores 3 are in contact with each other, and the connecting sleeves 7 on the incoming cable 1 and the outgoing cable 2 are also inserted into the rubber sheath 5. By injecting resin into the resin injection cavity 6 on the rubber sheath 5, the resin in the resin injection cavity 6 diffuses into the annular groove 8 on the connecting sleeve 7, so that the resin in the resin injection cavity 6 and the annular groove 8 form a whole, which can effectively improve the tensile strength between the incoming cable 1 and the outgoing cable 2. In addition, by arranging the resin in the rubber sheath 5, the resin can also be used for waterproofing after the surface of the rubber sheath 5 is worn.

[0015] A separation sleeve 9 is disposed in the rubber sheath 5 . A plurality of through slots are provided in the separation sleeve 9 . The number of the through slots is the same as the number of the wire cores 3 , so that the plurality of wire cores 3 can be separated conveniently.

[0016] The outer side of the rubber sheath 5 is connected with a mounting portion 10, and a mounting hole is provided on the surface of the mounting portion 10. A pressing sleeve 11 is provided on the outer side of the access cable 1, and a locking hole corresponding to the mounting hole is provided on the surface of the pressing sleeve 11. By putting the pressing sleeve 11 on the outer side of the access cable 1 and connecting the pressing sleeve 11 and the mounting portion 10 to the submersible sewage pump through bolts, the rubber sheath 5 and the connecting sleeve 7 can be pressed by the pressing sleeve 11.

[0017] Working principle of this utility model:

[0018] By inserting the wire cores 3 on the incoming cable 1 and the outgoing cable 2 into the rubber sheath 5 respectively, the copper terminals 4 on the two wire cores 3 are in contact, and the connecting sleeves 7 on the incoming cable 1 and the outgoing cable 2 are also inserted into the rubber sheath 5, and by injecting resin into the resin injection cavity 6 on the rubber sheath 5, the resin in the resin injection cavity 6 diffuses into the annular groove 8 on the connecting sleeve 7, so that the resin injection cavity 6 and the resin in the annular groove 8 form a whole, the tensile strength between the incoming cable 1 and the outgoing cable 2 can be effectively improved, and by arranging resin in the rubber sheath 5, after the surface of the rubber sheath 5 is worn, it can also be waterproofed by the resin, by sleeved the compression sleeve 11 on the outside of the incoming cable 1, and the compression sleeve 11 and the mounting portion 10 are connected to the submersible sewage pump by bolts, the rubber sheath 5 and the connecting sleeve 7 can be compressed by the compression sleeve 11.

[0019] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A submersible pump cable sealing structure, comprising an incoming cable and an outgoing cable, characterized in that: The incoming cable and the outgoing cable are each provided with a plurality of wire cores at the opposite ends, one end of the wire core is connected to a copper terminal, the outside of the incoming cable and the outgoing cable is provided with a rubber sheath, a resin injection cavity is provided inside the rubber sheath, the outside of the incoming cable and the outgoing cable are both hot-melt connected with a connecting sleeve, a plurality of annular grooves are provided on the outside of the connecting sleeve, and the annular grooves are communicated with the resin injection cavity.

2. A submersible pump cable sealing structure according to claim 1, characterized in that: A separation sleeve is arranged in the rubber sheath, and a plurality of through slots are opened in the separation sleeve, and the number of the through slots is the same as the number of the wire cores.

3. A submersible pump cable sealing structure according to claim 1, characterized in that: The outer side of the rubber sheath is connected with a mounting portion, a mounting hole is provided on the surface of the mounting portion, and a pressing sleeve is provided on the outer side of the access cable, and a locking hole corresponding to the mounting hole is provided on the surface of the pressing sleeve.

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