Oil-submerged pump pipeline with adjustable length

Abstract

The utility model discloses a length-adjustable oil-submerged pump pipeline, relates to the technical field of oil-submerged pumps, and aims to solve the problem that the length of an oil delivery pipe is fixed and needs to be preset according to the size of an oil storage tank. The oil conveying pipe comprises an inner oil pipe body and an outer oil pipe body, the bottom end of the outer oil pipe body is connected with an oil pipe connector, the inner oil pipe body is coaxially arranged in the oil pipe connector in a sleeved mode, the inner oil pipe body is in sliding connection with the oil pipe connector, and a jackscrew hole is formed in the side wall of the oil pipe connector and used for being connected with a jackscrew to fix the inner oil pipe body. The wire conduit comprises an inner wire conduit and an outer wire conduit, the top end of the outer wire conduit is connected with a wire conduit joint, the inner wire conduit is coaxially sleeved in the wire conduit joint, and the inner wire conduit is in sliding connection with the wire conduit joint.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pumps, in particular to a submersible pump pipeline with adjustable length. Background Art

[0002] The submersible pump is a refueling system used by gas stations to transport fuel. It can transport fuel from the oil tank to the refueling machine. The submersible pump refueling system has the characteristics of energy saving, high efficiency and easy use.

[0003] The submersible oil pump is mainly composed of a pump body, a pump head, an oil pipeline and a wire pipe, wherein the wire pipe is arranged inside the oil pipeline. The oil pipeline is used to connect the pump body and the pump head oil pipeline, and the wire pipe is used to connect the pump body and the pump head electrically. At present, the length of the oil pipeline of the submersible oil pump is fixed and needs to be determined according to the size of the oil storage tank. The calculation method is the length from the oil storage tank cover to the bottom of the oil tank minus 200mm, and then minus the length of the pump body, which is the final length of the oil pipeline. This length requirement is very strict, so the oil pipeline needs to be customized in advance, which not only brings a lot of inconvenience to the user, but also easily causes the customized oil pipeline to be unusable due to inaccurate measurement of the size. Utility Model Content

[0004] In order to solve the above-mentioned problem, that is, the length of the oil pipeline is fixed and needs to be predetermined according to the size of the oil storage tank, the utility model proposes a submersible pump pipeline with adjustable length, which includes an oil pipeline, a wire pipe is sleeved inside the oil pipeline, the oil pipeline includes an inner oil pipe and an outer oil pipe, the bottom end of the outer oil pipe is connected to an oil pipe joint, the inner oil pipe is coaxially sleeved in the oil pipe joint, and the inner oil pipe is slidably connected to the oil pipe joint, and a top screw hole is opened on the side wall of the oil pipe joint for connecting the top screw to fix the inner oil pipe; the wire pipe includes an inner wire pipe and an outer wire pipe, the top end of the outer wire pipe is connected to a wire pipe joint, the inner wire pipe is coaxially sleeved in the wire pipe joint, and the inner wire pipe is slidably connected to the wire pipe joint.

[0005] The utility model is further configured as follows: a limiting portion is provided at one end of the inner oil pipe connected to the oil pipe joint, the diameter of the limiting portion is larger than the diameter of the inner oil pipe, and a clamping portion adapted to the limiting portion is provided in the oil pipe joint.

[0006] The utility model is further configured as follows: sealing rings are arranged inside the oil pipe joint and the wire pipe joint.

[0007] The utility model is further configured as follows: the sealing ring is made of gasoline-resistant rubber material.

[0008] The utility model is further configured as follows: the wire pipe joint is provided with a nylon pad.

[0009] The utility model is further configured as follows: a wire tube retaining ring is arranged on the side wall of the inner wire tube, and the wire tube retaining ring is arranged above the wire tube joint to limit the sliding of the wire tube joint.

[0010] The beneficial effects of the utility model are:

[0011] By slidingly connecting the inner oil pipe with the oil pipe joint and the inner wire pipe with the wire pipe joint, the length of the oil pipe can be adjusted, so that the oil pipe can adapt to oil storage tanks of different sizes. During installation, the length can be adaptively adjusted according to the size of the oil storage tank, avoiding the problem of needing to customize the oil pipe in advance according to the size of the oil storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is shown in the structural diagram.

[0013] Figure 2 A local enlarged view of point A is shown.

[0014] Figure numerals: 1, oil pipeline; 11, inner oil pipe; 111, limiting part; 12, outer oil pipe; 121, oil pipe joint; 1211, clamping part; 2, wire pipe; 21, inner wire pipe; 211, wire pipe retaining ring; 22, outer wire pipe; 221, wire pipe joint; 3, sealing ring; 4, nylon pad; 5, wire pipe welding head. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0016] The utility model proposes a submersible oil pump pipeline with adjustable length, comprising an oil delivery pipe 1, the top end of the oil delivery pipe 1 is threadedly connected to a pump head, the bottom end of the oil delivery pipe 1 is threadedly connected to a pump body, a wire tube 2 is coaxially sleeved inside the oil delivery pipe 1, the top end of the wire tube 2 is also threadedly connected to the pump head, and the bottom end of the wire tube 2 is also threadedly connected to the pump body, so that the pump body is connected to both the oil circuit and the electrical circuit of the pump head.

[0017] The oil pipeline 1 includes an inner oil pipeline 11 and an outer oil pipeline 12. The outer diameter of the inner oil pipeline 11 is smaller than the inner diameter of the outer oil pipeline 12. The top of the inner oil pipeline 11 is coaxially sleeved inside the outer oil pipeline 12. The outer oil pipeline 12 is arranged above the inner oil pipeline 11. The top of the outer oil pipeline 12 is threadedly connected to the pump head. The bottom of the outer oil pipeline 12 is threadedly connected to a pipe joint 121. The pipe joint 121 is coaxially arranged with the outer oil pipeline 12, so that the top of the inner oil pipeline 11 is also coaxially sleeved in the pipe joint 121, and the inner oil pipeline 11 is slidably connected with the pipe joint 121, thereby achieving the purpose of changing the length of the oil pipeline 1.

[0018] A jackscrew hole is provided on the side wall of the oil pipe joint 121, and a jackscrew is connected to the inner thread of the jackscrew hole. The jackscrew can be pressed against the side wall of the inner oil pipe 11, and the oil pipe joint 121 and the inner oil pipe 11 can be relatively fixed by the jackscrew. That is, after the length of the oil pipeline 1 is adjusted, the oil pipe joint 121 and the inner oil pipe 11 can be tightened by the jackscrew.

[0019] The bottom end of the inner oil pipe 11 is threadedly connected to the pump body, and a limiting portion 111 is provided at the top end of the inner oil pipe 11. The diameter of the limiting portion 111 is 2 mm larger than the diameter of the inner oil pipe 11. A clamping portion 1211 matching the limiting portion 111 is provided inside the oil pipe joint 121. The diameter of the clamping portion 1211 is the same as the outer diameter of the inner oil pipe 11. The cooperation between the limiting portion 111 and the clamping portion 1211 can prevent the inner oil pipe 11 from slipping out of the oil pipe joint 121 when sliding.

[0020] The wire tube 2 includes an inner wire tube 21 and an outer wire tube 22. The outer diameter of the inner wire tube 21 is smaller than the inner diameter of the outer wire tube 22, and the bottom end of the inner wire tube 21 is coaxially sleeved in the outer wire tube 22. The inner wire tube 21 is arranged above the outer wire tube 22, and a wire tube welding head 5 is installed at the top end of the inner wire tube 21 for fixed connection with the pump head. The bottom end of the outer wire tube 22 is threadedly connected to the pump body, and the top end of the bottom end of the outer wire tube 22 is threadedly connected to a wire tube joint 221, so that the bottom end of the inner wire tube 21 is also coaxially sleeved in the wire tube joint 221, and the inner wire tube 21 is slidably connected to the wire tube joint 221, thereby realizing that the wire tube 2 can be adjusted along with the adjustment of the length of the oil pipeline 1.

[0021] Two sealing rings 3 are embedded in the oil pipe joint 121 and the wire pipe joint 221 to enhance the sealing between the oil pipe joint 121 and the inner oil pipe 11 and between the wire pipe joint 221 and the inner wire pipe 21. The sealing ring 3 is made of gasoline-resistant rubber material and is arranged in an O shape.

[0022] A nylon pad 4 is also embedded in the wire tube joint 221 to further enhance the sealing performance of the wire tube 2 .

[0023] A wire tube retaining ring 211 is also fixedly connected to the side wall of the inner wire tube 21. The wire tube retaining ring 211 is sleeved on the outside of the inner wire tube 21. The outer diameter of the wire tube retaining ring 211 is larger than the inner diameter of the wire tube joint 221, and the wire tube retaining ring 211 is arranged above the wire tube joint 221 to limit the sliding of the wire tube joint 221, and further limit the sliding of the oil pipe joint 121.

[0024] In summary, the utility model can adjust the length of the oil pipeline 1 by slidingly connecting the inner oil pipe 11 with the oil pipe joint 121, and slidingly connecting the inner wire pipe 21 with the wire pipe joint 221, so that the oil pipeline 1 can adapt to oil storage tanks of different sizes. During installation, the length can be adaptively adjusted according to the size of the oil storage tank, avoiding the problem of needing to customize the oil pipeline 1 in advance according to the size of the oil storage tank.

[0025] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0026] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In addition, it should be noted that in the description of the present invention, 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 those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0029] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A submersible pump pipeline with adjustable length, comprising an oil delivery pipe (1), wherein a wire tube (2) is sleeved inside the oil delivery pipe (1), and characterized in that: The oil delivery pipe (1) comprises an inner oil pipe (11) and an outer oil pipe (12); the bottom end of the outer oil pipe (12) is connected to an oil pipe joint (121); the inner oil pipe (11) is coaxially sleeved in the oil pipe joint (121), and the inner oil pipe (11) is slidably connected to the oil pipe joint (121); a top screw hole is provided on the side wall of the oil pipe joint (121) for connecting the top screw to fix the inner oil pipe (11); the wire pipe (2) comprises an inner wire pipe (21) and an outer wire pipe (22); the top end of the outer wire pipe (22) is connected to a wire pipe joint (221); the inner wire pipe (21) is coaxially sleeved in the wire pipe joint (221), and the inner wire pipe (21) is slidably connected to the wire pipe joint (221).

2. The submersible pump pipeline with adjustable length according to claim 1, characterized in that: A limiting portion (111) is provided at one end of the inner oil pipe (11) connected to the oil pipe joint (121); the diameter of the limiting portion (111) is larger than the diameter of the inner oil pipe (11); and a clamping portion (1211) adapted to the limiting portion (111) is provided in the oil pipe joint (121).

3. The submersible pump pipeline with adjustable length according to claim 1, characterized in that: The oil pipe joint (121) and the line pipe joint (221) are both provided with sealing rings (3).

4. The submersible pump pipeline with adjustable length according to claim 3, characterized in that: The sealing ring (3) is made of gasoline-resistant rubber material.

5. The submersible pump pipeline with adjustable length according to claim 1, characterized in that: The wire pipe joint (221) is provided with a nylon pad (4).

6. The submersible pump pipeline with adjustable length according to claim 1, characterized in that: A wire tube retaining ring (211) is provided on the side wall of the inner wire tube (21), and the wire tube retaining ring (211) is arranged above the wire tube joint (221) to limit the sliding of the wire tube joint (221).

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