Novel plug structure of submersible electric pump for well

Abstract

The utility model discloses a novel well submersible electric pump plug structure, which comprises a plugging sheath shell, a plug sheath and a pin body, a plugging wiring tube is plugged between the plugging sheath shell and the plug sheath, one end of the plugging wiring tube is plugged in the plugging sheath shell to plug a cable, and the other end of the plugging wiring tube is plugged in the plug sheath to plug a pin core. The tail end of the plug sheath is fixedly connected with a plug pin body, the plug pin body is provided with a through hole which is used for being correspondingly connected with a plug pin core, one side, used for being plugged with the plug pin core, of the plugging wiring pipe is provided with an interference contact notch, and two sides of the interference contact notch are respectively and uniformly punched with a plurality of punching notches along a straight line. According to the utility model, the notch deformation of the plugging wiring pipe is changed from pressing to notching, so that the notch deformation is stable and is not easy to deform; the plug pin and the plug pin O-shaped ring are changed from radial sealing to axial sealing, so that the sealing performance is ensured; a more suitable pin body material is used, so that the size stability is ensured; the pin core is contained in the pin body, and sealing and insulation are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable plug structure technical field especially relates to a novel well submersible electric pump plug structure. BACKGROUND

[0002] As Figure 1 The existing well submersible electric pump plug structure includes plug-in sheath shell 1, plug-in sheath 3 and plug-in body, plug-in sheath shell, plug-in sheath are inserted and connected with plug-in wiring pipe 5, one end of plug-in wiring pipe is inserted into plug-in sheath shell and is connected with cable line 2, the other end is inserted into plug-in sheath, is used for inserting and connecting plug-in core 4, the tail end of plug-in sheath is fixedly connected with plug-in body 7, the through hole is set up on plug-in body, is used for corresponding connection plug-in core.

[0003] The installation height of plug-in body in the well submersible electric pump plug structure is small, the partial plug-in core below is exposed outside plug-in body, and the core line needs to be protected and isolated when the plug-in core is crimped, which increases the installation steps and materials. Plug-in O ring 6 is radial sealing, and the sealing performance cannot be guaranteed.

[0004] As Figure 2 And Figure 3 The interference contact part of plug-in wiring pipe and plug-in core adopts artificial pressing forming, and the pressing size is not easy to control, so that the plug-in wiring pipe and plug-in core are loose or tight when matched, the flow area is unstable, heat is easily generated, the product quality is affected, and the plug-in wiring pipe and plug-in core are repeatedly inserted and pulled 50 times after being matched tightly, the matching becomes loose, indicating that the plug-in wiring pipe punch point part has been deformed. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model designs a novel well submersible electric pump plug structure.

[0006] The utility model adopts the following technical scheme:

[0007] A novel well submersible electric pump plug structure, including plug-in sheath shell, plug-in sheath and plug-in body, plug-in sheath shell, plug-in sheath are inserted and connected with plug-in wiring pipe, one end of plug-in wiring pipe is inserted into plug-in sheath shell and is connected with cable line, the other end is inserted into plug-in sheath, is used for inserting and connecting plug-in core, the tail end of plug-in sheath is fixedly connected with plug-in body, the through hole is set up on plug-in body, is used for corresponding connection plug-in core, the side for inserting and connecting plug-in core of plug-in wiring pipe is provided with interference contact slot, and the both sides of interference contact slot are punched with a plurality of punch grooves along a straight line respectively.

[0008] As preferred, the punch groove is M-shaped.

[0009] As preferred, the plug-in core bottom line is covered in plug-in body by injection molding after being connected. Insulation and sealing are guaranteed, and other processes or materials are not needed to guarantee insulation and sealing.

[0010] Preferably, the pin body is made of PBT material, which has good toughness, anti-vibration, tensile and bending strength, and small water absorption, and is not easy to be damaged during transportation.

[0011] Preferably, the pin body is provided with an axial sealing pin O-ring. The axial sealing pin O-ring can limit the leakage of medium in the axial direction, ensure the sealing performance, ensure the stable operation of the system, and occupy less space, and is suitable for occasions with limited space.

[0012] The utility model discloses the beneficial effect is: (1), the gap deformation of the utility model discloses the plug-in wiring pipe is changed from pressing to punching groove, guarantees the stability of gap deformation and is not easy to deform, (2), lengthens the pin, and the radial sealing of pin O-ring is changed to axial sealing, guarantees sealing performance, (3), uses more suitable pin body material, guarantees dimensional stability, and the pin core is contained in the pin body, guarantees sealing and insulation. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the prior art submersible electric pump plug structure for well;

[0014] Figure 2 It is Figure 1 It is a structural schematic view of the plug-in wiring pipe and the pin core in the utility model;

[0015] Figure 3 It is Figure 2 It is a sectional view of the A-A direction in the utility model;

[0016] Figure 4 It is a structural schematic view of the utility model;

[0017] Figure 5 It is Figure 4 It is a structural schematic view of the plug-in wiring pipe and the pin core in the utility model;

[0018] Figure 6 It is Figure 5 It is a sectional view of the B-B direction in the utility model;

[0019] Figure 7 It is Figure 5 It is a right view of the utility model;

[0020] In the drawing: 1, plug-in sheath shell, 2, cable, 3, plug-in sheath, 4, pin core, 5, plug-in wiring pipe, 6, pin O-ring, 7, pin body, 8, interference contact notch, 9, punching notch. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be further specifically described in combination with the drawings through specific embodiments:

[0022] Embodiment: as shown in the accompanying Figure 1 A new type of well submersible electric pump plug structure, including plug sheath shell 1, plug sheath 3 and plug body, plug sheath shell, plug sheath between the plug-in wiring pipe 5, plug-in wiring pipe one end inserted into the plug sheath shell plug-in cable 2, the other end is inserted into the plug sheath, for plug-in plug core 4, plug sheath tail end fixedly connected with plug body 7, plug body is provided with a through hole, for corresponding connection plug core, plug-in wiring pipe for plug-in plug core side is provided with interference contact slot 8, the interference contact slot both sides are respectively uniformly punched with a plurality of stamping slots 9.

[0023] The stamping slot is M-shaped. The plug core is injected and covered in the plug body after wiring. The plug body is made of PBT material. An axial sealing plug O-ring 6 is arranged outside the plug body.

[0024] The installation height of the plug is increased, the O-ring is axially sealed, which can prevent the medium from leaking in the axial direction to a certain extent, ensure the sealing performance, ensure the stable operation of the system, and occupy less space, and is suitable for occasions with limited space.

[0025] The plug body is made of PBT material, which has good toughness, shock resistance, tensile and bending strength, and small water absorption rate, and is not easy to be damaged during transportation. The plug core is contained in the plug body, and the plug core is directly injected in the plug body after wiring, which ensures insulation and sealing without other processes or materials to ensure insulation and sealing.

[0026] The interference contact part of the plug-in wiring pipe and the plug core is formed by special tool stamping, and the size is easy to control on the equipment. When the plug-in wiring pipe and the plug core are matched, the tightness is stable, the product quality is guaranteed, and after the plug-in wiring pipe and the plug core are repeatedly plugged and unplugged for more than 300 times, the plug-in wiring pipe and the plug core still have interference, which indicates that the deformation of the plug-in wiring pipe slot part is not obvious.

[0027] The above-mentioned embodiment is only a preferred scheme of the present application, and does not limit the present application in any form. Other variants and modifications can be made without exceeding the technical scheme recited in the claims.

Claims

1. A novel plug structure for a submersible electric pump for a well, comprising a plug-in sleeve shell, a plug sleeve and a pin body, wherein a plug-in wiring tube is inserted between the plug-in sleeve shell and the plug sleeve, one end of the plug-in wiring tube is inserted into the plug-in sleeve shell to connect to the cable, and the other end is inserted into the plug sleeve for connecting to the pin core, the tail end of the plug sleeve is fixedly connected to the pin body, the pin body is provided with a through hole for correspondingly connecting to the pin core, and the plug-in wiring tube has an interference contact notch on one side for connecting to the pin core, characterized in that: The interference contact groove is uniformly punched with multiple punched grooves on both sides along a straight line.

2. A new plug structure for submersible electric pump for wells according to claim 1, characterized in that, The punched groove is M-shaped.

3. A new type of submersible electric pump plug structure for wells according to claim 1, characterized in that, The pin core bottom is connected by injection molding and covered in the pin body.

4. A new type of submersible electric pump plug structure for wells according to claim 1, characterized in that, The pin body is made of PBT material.

5. A new type of submersible electric pump plug structure for wells according to claim 1, characterized in that, An axial sealing pin O-ring is arranged outside the pin body.

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