External auxiliary structure of sand prevention oil well pump

Abstract

The utility model relates to the technical field of external auxiliary structures, and discloses an external auxiliary structure of a sand prevention oil well pump, which comprises a pump body, a top plate is arranged at the bottom of the pump body, and a bottom plate is arranged at the bottom of the top plate; an annular plate is fixedly mounted in the middle of the lower surface of the top plate; pipe orifices are formed in the middles in the annular plate and the top plate; the bottom of the pump body communicates with a pump pipe. Through the arrangement of the top plate, the limiting rod and the bottom plate, the filtering mechanism can be clamped in the annular groove of the annular plate and then penetrate through the limiting rod, the screw block is connected to one end of the limiting rod in a screwed mode, the bottom plate and the filtering mechanism can be fixed, and when cleaning is needed in the later period, the screw block can be rotated, the limiting rod can be pulled away, and the filtering mechanism can be taken away for unblocking operation. And later cleaning is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of external auxiliary structure, concretely is external auxiliary structure of sand prevention oil well pump. BACKGROUND

[0002] At present, many domestic oil fields have large sand content in heavy oil well layers, and after using the sand prevention tools such as the hanging sand prevention filter screen during exploitation, a small amount of sand particles still enter the pump, and when using the ordinary feedback heavy pumping, the sand particles often enter the pump to cause sand sticking and sand burying phenomenon, so it is necessary to use the oil pump with sand prevention function.

[0003] In the implementation of the utility model, the inventor finds that the following problems in the prior art have not been solved: the external auxiliary structure of the existing sand prevention oil well pump has good filtering effect and convenient cleaning effect after opening, but the filtering mechanism is designed to be relatively long, and after opening, the filter holes located on the inner side are inconvenient to clean, and improvement is urgently needed, therefore, we propose an external auxiliary structure of a sand prevention oil well pump. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an external auxiliary structure of a sand prevention oil well pump, which solves the problems proposed in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an external auxiliary structure of a sand prevention oil well pump, comprising a pump body, a top plate is placed at the bottom of the pump body, and a bottom plate is placed at the bottom of the top plate;

[0006] An annular plate is fixedly installed at the middle of the lower surface of the top plate, and a pipe opening is formed in the annular plate and the inner middle of the top plate;

[0007] A pump pipe is communicatively arranged at the bottom of the pump body, and the bottom end of the pump pipe is connected to the annular plate and the top plate through the pipe opening;

[0008] An annular groove is formed in the lower surface of the annular plate, and a filtering mechanism is clamped in the annular groove;

[0009] Limiting rods are movably penetrated through the two sides of the top plate and the bottom plate, a stop block is fixedly installed at the top end of the limiting rod, an external thread is formed in the bottom end of the limiting rod, and a screw block is rotatably connected to the limiting rod through the external thread, the filtering mechanism is clamped in the annular groove of the annular plate, then the limiting rod is penetrated, and the screw block is rotatably connected to one end of the limiting rod, so that the bottom plate and the filtering mechanism are fixed, when cleaning is needed in the later period, the screw block is rotated, the limiting rod is pulled out, and the filtering mechanism is removed for cleaning operation, which is more convenient for cleaning than the existing structure.

[0010] As an optional solution of the technical scheme of the application, the filtering mechanism comprises two groups of arc-shaped plates, the two groups of arc-shaped plates are provided with accommodating openings, the accommodating openings are provided with sandproof sponges, and the two sides of the arc-shaped plates close to the accommodating openings are provided with a plurality of groups of uniformly arranged oil filtering holes.

[0011] As an optional solution of the technical scheme of the application, the two groups of arc-shaped plates are provided with reinforcing rods at the middle portions of the outer sides, the reinforcing rods are provided with reinforcing cylinders, and the limiting rods are movably penetrated into the reinforcing cylinders.

[0012] As an optional solution of the technical scheme of the application, the top plate is provided with an indication plate at the front side of the upper surface, and the indication plate is fixed by welding.

[0013] As an optional solution of the technical scheme of the application, the profile of the annular groove is matched with the shape of the arc-shaped plate, so that the components are matched and designed, and the arc-shaped plate can be prevented from shaking and tilting.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] 1. The external auxiliary structure of the sand-proof oil well pump comprises a top plate, a limiting rod and a bottom plate.

[0016] 2. The external auxiliary structure of the sand-proof oil well pump comprises two groups of arc-shaped plates and oil filtering holes. BRIEF DESCRIPTION OF DRAWINGS

[0017] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1The utility model provides an overall front structure schematic diagram of the outer auxiliary structure of the sand prevention oil well pump.

[0019] Figure 2 The utility model provides a top plate and bottom plate connecting portion structure schematic diagram of the outer auxiliary structure of the sand prevention oil well pump.

[0020] Figure 3 The utility model provides an annular plate portion bottom structure schematic diagram of the outer auxiliary structure of the sand prevention oil well pump.

[0021] Figure 4 The utility model provides a filter mechanism portion bottom structure schematic diagram of the outer auxiliary structure of the sand prevention oil well pump.

[0022] In the drawing: 1, pump body;11, pump pipe;2, top plate;21, stopper;22, screw block;23, limiting rod;24, signboard;25, annular plate;26, annular groove;27, pipe mouth;3, bottom plate;4, filter mechanism;41, oil filter hole;42, containing mouth;43, sand prevention sponge;44, arc plate;5, reinforcing cylinder;51, reinforcing rod. Specific implementation

[0023] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific implementation.

[0024] Please refer to Figures 1-4 The utility model provides a technical scheme: an outer auxiliary structure of sand prevention oil well pump, including pump body 1, the top plate 2 is placed at pump body 1 bottom, and the signboard 24 is fixedly installed on top plate 2 upper surface front side, and the signboard 24 is fixed by welding mode, can tell the corresponding process to operating personnel through the guide character on the signboard 24, is convenient for understanding and use, and the bottom plate 3 is placed at top plate 2 bottom;Annular plate 25 is fixedly installed at top plate 2 lower surface middle part, and the pipe mouth 27 is set in annular plate 25 and top plate 2 in the middle part of annular plate 25 and top plate 2;Pump pipe 11 is communicated and is arranged at pump body 1 bottom, and the pump pipe 11 bottom end is in annular plate 25 and top plate 2 through the pipe mouth 27;Annular groove 26 is set in annular plate 25 lower surface, and the filter mechanism 4 is clamped in annular groove 26;The limiting rod 23 is movably penetrated in the both sides of top plate 2 and bottom plate 3, and the stopper 21 is fixedly installed at limiting rod 23 top end, and the external thread is set in limiting rod 23 bottom end, and the screw block 22 is rotatively connected with limiting rod 23 through the external thread of limiting rod 23.

[0025] In the technical scheme, the filter mechanism can be clamped in the annular groove 26 of the annular plate 25, then pass through the limiting rod 23, and be fixed at one end of the limiting rod 23 by rotating the screw block 22, so that the bottom plate 3 and the filter mechanism 4 can be fixed. When cleaning is needed later, the screw block 22 is rotated to remove the limiting rod 23, and the filter mechanism 4 can be taken out for cleaning operation. Compared with the existing structure, the filter mechanism is convenient for later cleaning.

[0026] In some technical schemes, the filter mechanism 4 includes two groups of arc-shaped plates 44, the contour of the annular groove 26 is matched with the shape of the arc-shaped plate 44, the component is matched and designed, the arc-shaped plate 44 can be prevented from shaking and tilting, the accommodation opening 42 is arranged in the two groups of arc-shaped plates 44, the sand-proof sponge 43 is clamped in the accommodation opening 42, the oil filter hole 41 is arranged in the two sides of the arc-shaped plate 44 close to the accommodation opening 42, the reinforcing rod 51 is fixedly installed on the outer side of the middle part of the two groups of arc-shaped plates 44, the reinforcing cylinder 5 is fixedly installed on the outer side of the reinforcing rod 51, and the limiting rod 23 is movably penetrated in the reinforcing cylinder 5. The reinforcing cylinder 5 and the reinforcing rod 51 can be matched to limit the middle part of the arc-shaped plate 44 and improve the rigidity of the arc-shaped plate 44.

[0027] In the technical scheme, the two groups of arc-shaped plates 44 and the oil filter hole 41 can be matched and used. Since the filter mechanism 4 is composed of the two groups of arc-shaped plates 44, the two groups of arc-shaped plates 44 can be separately disassembled after the bottom plate 3 is removed. Compared with the integrated design of the filter mechanism 4, the convenience of later cleaning is further improved, and the practicality is high.

[0028] Working principle: It should be noted that the utility model is an external auxiliary structure of a sand-proof oil well pump, the components are general standard components or components known by those skilled in the art, the structure and principle thereof can be known by the technical personnel through a technical manual or through a conventional test method.

[0029] When the external auxiliary structure of the sand-proof oil well pump is used, the external auxiliary structure is assembled at the pump pipe 11 of the oil well pump. During the operation of the pump body 1, the filter mechanism and the sand-proof sponge 43 can be used for filtering. The external auxiliary structure is used to prevent sand particles from entering the pump to cause sand jamming and sand burying, which affects the normal function.

[0030] Through being provided with the top plate 2, the limiting rod 23 and the bottom plate 3, in the use process of the external auxiliary structure, the filtering mechanism can be clamped in the annular groove 26 of the annular plate 25, then penetrate through the limiting rod 23, and the screw block 22 is screwed at one end, so that the bottom plate 3 and the filtering mechanism 4 can be fixed, when cleaning is needed later, the screw block 22 is rotated, the limiting rod 23 is pulled out, the filtering mechanism 4 can be taken away to carry out the cleaning operation, compared with the existing structure, the filtering mechanism 4 is convenient for later cleaning, through being provided with the two groups of arc-shaped plates 44 and the oil filtering hole 41, since the filtering mechanism 4 is composed of the two groups of arc-shaped plates 44, when the bottom plate 3 is taken away, the two groups of arc-shaped plates 44 can be separately disassembled, compared with the integrated design of the filtering mechanism 4, the convenience degree of later cleaning is further improved, and the practicality is strong.

Claims

1. An external auxiliary structure for a sand-proof oil pump, characterized in that: It includes a pump body (1), a top plate (2) is placed at the bottom of the pump body (1), and a bottom plate (3) is placed at the bottom of the top plate (2); An annular plate (25) is fixedly installed in the middle of the lower surface of the top plate (2), and a pipe opening (27) is provided in the middle of both the annular plate (25) and the top plate (2); The bottom of the pump body (1) is connected to a pump pipe (11), and the bottom end of the pump pipe (11) is inside the annular plate (25) and the top plate (2) through the pipe port (27); The lower surface of the annular plate (25) is provided with an annular groove (26), and a filter mechanism (4) is inserted in the annular groove (26); Both sides of the top plate (2) and the bottom plate (3) are movably connected by a limiting rod (23). A stop block (21) is fixedly installed at the top of the limiting rod (23). The bottom of the limiting rod (23) is provided with an external thread, and a screw block (22) is screwed onto the limiting rod (23) through the external thread.

2. The external auxiliary structure of a sand-proof oil pump according to claim 1, characterized in that: The filtration mechanism (4) includes two sets of arc-shaped plates (44), each set of arc-shaped plates (44) has an accommodating opening (42), and a sand-proof sponge (43) is inserted in the accommodating opening (42). Several sets of uniformly arrayed oil filter holes (41) are opened on both sides of the arc-shaped plates (44) near the accommodating opening (42).

3. The external auxiliary structure of a sand-proof oil pump according to claim 2, characterized in that: A reinforcing rod (51) is fixedly installed on the middle of the outer side of both sets of arc plates (44). A reinforcing cylinder (5) is fixedly installed on the outer side of the reinforcing rod (51), and the limiting rod (23) moves through the reinforcing cylinder (5).

4. The external auxiliary structure of a sand-proof oil pump according to claim 1, characterized in that: An indicator sign (24) is fixedly installed on the front side of the upper surface of the top plate (2), and the indicator sign (24) is fixed by welding.

5. The external auxiliary structure of a sand-proof oil pump according to claim 2, characterized in that: The outline of the annular groove (26) is adapted to the shape of the arc plate (44).

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