Novel cable sealing structure of submersible motor for well

Abstract

The utility model discloses a novel submersible motor cable sealing structure for a well, which comprises a plug and a pin, a first groove and a second groove are concavely arranged at the end part of the plugging part of the plug, at least two plugging holes are uniformly arranged in the first groove side by side, and at least one plugging hole is uniformly arranged in the second groove side by side. The number of the plugging holes in the first groove is larger than that of the plugging holes in the second groove, a first boss and a second boss are arranged at the end part of the plugging part of the plug pin corresponding to the bulges, the first boss is provided with plugging heads with the same number as the plugging holes in the first groove, and the second boss is provided with plugging heads with the same number as the plugging holes in the second groove. The number of the plugging holes in the first groove and the second groove corresponds to the number of the plugging heads on the first boss and the second boss, and the number of the plugging holes in the first groove and the second groove is different from that of the plugging heads on the first boss and the second boss, so that a fool-proof structure is formed, the plugging holes and the plugging heads cannot be reversely installed, reverse installation of the cable plug and the plugging pins is avoided, the plugging contact area of the plug and the plugging pins is reduced, and plugging is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to well submersible motor cable connection technical field especially relates to a new well submersible motor cable sealing structure. BACKGROUND

[0002] The cable joint is also called cable head, and is a cable accessory for connecting two cables to form a continuous circuit. After the cable is laid, in order to make it a continuous line, the lines must be connected as a whole, and the connecting points need to be installed with cable joints.

[0003] In use, the incoming cable and the outgoing cable are inserted into the cable joint to realize the connection of the two cables. However, due to the loose installation mode of the plug-in type, the plug-in type can be realized in both directions, and the plug and the pin may be reversed during installation. In addition, the contact area of the plug and the pin is too large, and it is difficult to plug and unplug. SUMMARY

[0004] To solve the above technical problems, the utility model designs a new well submersible motor cable sealing structure.

[0005] The utility model adopts the following technical scheme:

[0006] A new well submersible motor cable sealing structure, comprising a plug and a pin, the plug comprising a plug insertion part and a plug wiring part, the plug wiring part connecting the cable, the pin comprising a pin insertion part and a pin wiring part, the pin wiring part connecting the cable, the end of the plug insertion part is concavely provided with a first groove and a second groove, at least two insertion holes are uniformly arranged side by side in the first groove, at least one insertion hole is uniformly arranged side by side in the second groove, the number of insertion holes in the first groove is more than that in the second groove, the end of the pin insertion part is correspondingly provided with a first boss and a second boss, the same number of plug-in heads are arranged on the first boss corresponding to the insertion holes in the first groove, the same number of plug-in heads are arranged on the second boss corresponding to the insertion holes in the second groove, and the plug-in heads are matched with the insertion holes.

[0007] The number of insertion holes in the first groove and the second groove of the new well submersible motor cable sealing structure corresponds to the plug-in heads on the first boss and the second boss, and the number of the two is different, which forms a foolproof structure, and the two cannot be reversed, avoiding the reverse installation of the cable plug and the pin.

[0008] As a preferred, the end of the plug insertion part is provided with a sealing ring outside the first groove and the second groove.

[0009] As a preferred, a double-step surface is arranged on the pin insertion part, which facilitates the plug and unplug of the pin.

[0010] Preferably, a plug step surface is provided between the plug insertion portion and the plug connection portion to facilitate plugging and unplugging of the plug.

[0011] Preferably, a pin step surface is provided between the pin inserting portion and the pin connecting portion to facilitate the insertion and removal of the pin.

[0012] Preferably, mounting holes are provided on both sides of the pin step surface.

[0013] The beneficial effects of the present invention are as follows: (1) the number of the plug-in holes in the first groove and the second groove corresponds to the plug-in connectors on the first boss and the second boss, and the number of the two is different, which forms a fool-proof structure. The two cannot be installed reversely, thus avoiding the situation where the cable plug and the pin are installed reversely; (2) the contact area of ​​the plug and the pin is reduced, and a step surface is provided to facilitate the plug and the pin to be plugged in and out. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] In the figure: 1. plug, 2. pin, 3. plug connecting part, 4. plug step surface, 5. first groove, 6. second groove, 7. connecting hole, 8. sealing ring, 9. pin connecting part, 10. pin step surface, 11. first boss, 12. plug connector, 13. mounting hole, 14. second boss. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0017] Example: Figure 1 As shown, a new type of sealing structure for a submersible motor cable for a well includes a plug 1 and a pin 2. The plug includes a plug plug-in portion 3 and a plug wiring portion, and the plug wiring portion is connected to the cable. The pin includes a pin plug-in portion 9 and a pin wiring portion, and the pin wiring portion is connected to the cable. The end of the plug plug-in portion is concavely provided with a first groove 5 and a second groove 6. Two plug-in holes 7 are evenly arranged side by side in the first groove, and one plug-in hole is arranged in the second groove. The number of plug-in holes in the first groove is more than that in the second groove. The end of the pin plug-in portion is provided with a first boss 11 and a second boss 14 corresponding to the protrusions. The first boss is provided with the same number of plug connectors 12 corresponding to the plug holes in the first groove, and the second boss is provided with the same number of plug connectors corresponding to the plug holes in the second groove. The plug connectors are plugged in with the plug holes.

[0018] The ends of the plug connector are located outside the first groove and the second groove and are respectively provided with sealing rings 8. A double-layer step surface is provided on the pin connector.

[0019] A plug step surface 4 is arranged between the plug inserting part and the plug wiring part.

[0020] The plug-in holes in the first and second grooves correspond to the plug-in heads on the first and second bosses, and the number of the plug-in holes is different from that of the plug-in heads, so that a foolproof structure is formed, and the plug-in holes and the plug-in heads cannot be reversely assembled, thereby avoiding the reverse assembly of the cable plug and the plug-in head.

[0021] The above-described embodiment is only a preferred scheme of the utility model, and does not limit the utility model in any form, and other variants and modifications can be made without exceeding the technical scheme recorded in the claims.

Claims

1. A novel submersible motor cable seal structure for a well, comprising a plug and a pin, the plug comprising a plug spigot and a plug terminal, the plug terminal being connected to a cable, the pin comprising a pin spigot and a pin terminal, the pin terminal being connected to a cable, characterised in that, The end of the plug insertion part is concave, and is provided with a first groove and a second groove. At least two insertion holes are uniformly arranged side by side in the first groove, and at least one insertion hole is uniformly arranged side by side in the second groove. The number of the insertion holes in the first groove is more than that in the second groove. The end of the pin insertion part is provided with a first boss and a second boss corresponding to the protrusions. The same number of plug pins are arranged on the first boss corresponding to the insertion holes in the first groove, and the same number of plug pins are arranged on the second boss corresponding to the insertion holes in the second groove. The plug pins are matched with the insertion holes.

2. A novel cable seal for submersible electric motors for wells according to claim 1, characterized in that, The end of the plug insertion part is located outside the first groove and the second groove and is provided with a sealing ring.

3. A novel cable seal for submersible electric motors for wells according to claim 1, characterized in that, A double-layer stepped surface is arranged on the pin insertion part.

4. A novel cable seal for submersible electric motors for wells according to claim 1, characterized in that, A plug stepped surface is arranged between the plug insertion part and the plug wiring part.

5. A novel cable seal for submersible electric motors for wells according to claim 1, characterized in that, A pin stepped surface is arranged between the pin insertion part and the pin wiring part.

6. A novel cable seal for submersible electric motors for wells according to claim 5, characterized in that, Mounting holes are arranged on both sides of the pin stepped surface.

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