CN214463942U

CN214463942U - Direct-connected hollow sucker rod

Info

Publication number: CN214463942U
Application number: CN202120424247.1U
Authority: CN
Inventors: 王建立
Original assignee: Shandong Lixin Petroleum Machinery Manufacturing Co ltd
Current assignee: Shandong Lixin Petroleum Machinery Manufacturing Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-10-22
Anticipated expiration: 2031-02-26

Abstract

The utility model relates to the technical field of sucker rods, and discloses a direct-connected hollow sucker rod, which solves the problem that petroleum residue exists on the inner wall of the direct-connected hollow sucker rod after the use of the direct-connected hollow sucker rod in the current market is finished, may corrode the inner space of the sucker rod, causes waste of petroleum resources without cleaning, and the length value of the traditional direct-connected hollow sucker rod is fixed and is difficult to adjust according to the actual use requirement, the time is wasted when a new sucker rod is replaced, and the working efficiency of oil exploitation is delayed, which comprises an external sucker rod, an internal sucker rod is movably sleeved in the inner cavity of the external sucker rod, a thread groove is arranged on one side of the external sucker rod, fixing bolt has been cup jointed to the internal thread of thread groove, the utility model has the advantages of the sucker rod is inside not to have the oil to remain, can adjust sucker rod length according to the condition.

Description

Direct-connected hollow sucker rod

Technical Field

The utility model belongs to the technical field of the sucker rod, specifically be a hollow sucker rod of direct-connected type.

Background

The sucker rod is a slender rod piece of an oil pumping well, the upper part of the sucker rod is connected with a polished rod, the lower part of the sucker rod is connected with an oil pump to play a role of transmitting power, the length of a single sucker rod is 7.62 meters, 8 meters or 9.14 meters, the material of the sucker rod is generally low-carbon alloy steel, the sucker rod is subjected to quenching and tempering treatment, the sucker rod is connected by internal threads inside an oil pipe one by one and extends to a piston at an underground oil layer, and oil is pumped by reciprocating motion. Present oil well length is generally about two kilometers, take the victory oil field as an example, deepest use up to three thousand meters, along with the continuous development of the oil exploitation technique of china, the more and more great raw materials of the exploitation degree of difficulty are also exploited, for example viscous crude, high wax content etc. can adopt hollow sucker rod to exploit, hollow sucker rod's application is also more and more extensive, the kind is also more and more, a direct-connected hollow sucker rod is studied, through the continuous research and the development to this direct-connected hollow sucker rod, can be when carrying out oil exploitation more convenient and fast, further promote oil exploitation's work efficiency.

However, after the direct-connected hollow sucker rod in the current market is used, petroleum residues are left on the inner wall of the direct-connected hollow sucker rod, the residual petroleum raw materials contain chemical elements such as sulfur and iron, which may corrode the inner space of the sucker rod, and meanwhile, the residual petroleum raw materials contain rich resources, which cause waste of petroleum resources without cleaning; and the length value of traditional direct-connected hollow sucker rod is fixed, is difficult to adjust according to actual user demand, need change new sucker rod when length is not enough, and it can waste time to change new sucker rod to hinder oil development's work efficiency, for this reason, we have provided a direct-connected hollow sucker rod.

Disclosure of Invention

To the above situation, for overcoming prior art's defect, the utility model provides a direct-connected hollow sucker rod, the effectual direct-connected hollow sucker rod of having solved on the existing market is after the use, it remains to have the oil on direct-connected hollow sucker rod's the inner wall, probably lead to the fact the corruption to the inner space of sucker rod, it can cause the waste to the oil resource not clear up, and traditional direct-connected hollow sucker rod's length value is fixed, be difficult to adjust according to the user demand of reality, the sucker rod of more renew can waste time, thereby hinder the problem of oil development's work efficiency.

In order to achieve the above object, the utility model provides a following technical scheme: a direct-connected hollow sucker rod comprises an external sucker rod, wherein an inner sucker rod is movably sleeved in an inner cavity of the external sucker rod, a thread groove is formed in one side of the external sucker rod, a fixing bolt is sleeved on an internal thread of the thread groove, and a connecting pipe is fixedly connected to the bottom of the external sucker rod;

one side movable mounting of inside sucker rod inner chamber has the antiskid piece, the top fixedly connected with scraper blade of antiskid piece, the one end fixedly connected with connecting block of antiskid piece, one side fixedly connected with fixed block of connecting block, the top of fixed block is seted up flutedly, the inside movable mounting of recess has the dead lever, one side fixedly connected with lug of dead lever bottom, the top fixedly connected with installation piece of dead lever.

Preferably, the size that the thread groove was all seted up to one side of outside sucker rod and inside sucker rod equals, and all is parallel arrangement between every thread groove.

Preferably, the outer part of the fixing bolt and the inner part of the thread groove are respectively provided with an external thread and an internal thread, and the external thread of the fixing bolt is matched with the internal thread of the thread groove.

Preferably, the antiskid sheets are made of rubber materials, and the length value of the antiskid sheets is equal to the width value of the connecting blocks.

Preferably, one side of the scraper is arranged at a forty-five degree inclination angle with the inner wall of the internal sucker rod, and the scraper is matched with the internal sucker rod.

Preferably, the bottom of the mounting block is perpendicular to the top of the fixing rod, and the surface of the mounting block is provided with anti-slip threads.

Compared with the prior art, the beneficial effects of the utility model are that:

1) in the work, through the connecting block, the anti-slip sheet and the scraper blade, when the connecting block moves upwards, the anti-slip sheet and the scraper blade can be driven to move upwards, the scraper blade can clean and scrape the inner wall of the internal sucker rod in the upwards moving process, so that residual petroleum on the inner wall of the internal sucker rod is scraped, the scraped petroleum flows downwards along the scraper blade, the residual petroleum is collected, the petroleum cost is saved, and meanwhile, the problem that the residual petroleum raw material contains chemical elements such as sulfur and iron and the like and can corrode the internal space of the sucker rod is avoided;

2) through the groove, the bump, the fixed rod, the fixed block and the mounting block, when residual oil on the inner wall of the internal sucker rod needs to be cleaned, the fixed rod is stretched into the internal sucker rod, the bottom end of the fixed rod is in contact with the groove formed in the top of the fixed block and then rotates, so that the fixed rod is connected with and fixed on the fixed block, the mounting block is pulled upwards by hands, the fixed rod is moved upwards, the connecting block and the scraper are driven to move upwards to clean and scrape the residual oil on the inner wall of the internal sucker rod, the residual oil is collected, and the problem that rich raw materials contained in the oil are wasted is solved;

3) the utility model discloses a sucker rod, through outside sucker rod, inside sucker rod, thread groove and fixing bolt, when inside sucker rod length is not enough, upwards pull inside sucker rod, select suitable thread groove according to actual conditions, pass outside sucker rod and inside sucker rod with fixing bolt again, fix outside sucker rod and inside sucker rod through thread groove and fixing bolt, can carry out nimble adjustment according to the user demand of reality, the sucker rod that needs to be renewed when having avoided length not enough can waste time, thereby delay the work efficiency's of oil development problem.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a front sectional view of the structure of the present invention;

FIG. 2 is a schematic front view of the structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure A of the present invention;

fig. 4 is a partial top view of the structure of the present invention;

in the figure: 1. an external sucker rod; 2. an internal sucker rod; 3. a thread groove; 4. fixing the bolt; 5. a connecting pipe; 6. connecting blocks; 7. anti-slip sheets; 8. a squeegee; 9. a groove; 10. a bump; 11. fixing the rod; 12. a fixed block; 13. and (7) installing the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the embodiment, as shown in fig. 1-4, the utility model comprises an external sucker rod 1, an internal sucker rod 2 is movably sleeved in the inner cavity of the external sucker rod 1, a thread groove 3 is formed in one side of the external sucker rod 1, a fixing bolt 4 is sleeved on the internal thread of the thread groove 3, and a connecting pipe 5 is fixedly connected to the bottom of the external sucker rod 1;

one side movable mounting of 2 inner chambers of inside sucker rod has antiskid ribbed tile 7, the top fixedly connected with scraper blade 8 of antiskid ribbed tile 7, the one end fixedly connected with connecting block 6 of antiskid ribbed tile 7, one side fixedly connected with fixed block 12 of connecting block 6, recess 9 has been seted up at the top of fixed block 12, the inside movable mounting of recess 9 has dead lever 11, one side fixedly connected with lug 10 of dead lever 11 bottom, the top fixedly connected with installing block 13 of dead lever 11.

Wherein, one side of the external sucker rod 1 and one side of the internal sucker rod 2 are both provided with thread grooves 3 with the same size, and each thread groove 3 is arranged in parallel; when inside sucker rod 2 length was not enough, upwards pull inside sucker rod 2, select suitable thread groove 3 according to actual conditions, pass outside sucker rod 1 and inside sucker rod 2 with fixing bolt 4 again, fix outside sucker rod 1 and inside sucker rod 2 through thread groove 3 and fixing bolt 4, can carry out nimble adjustment according to the user demand of reality, avoided length not enough the time internal sucker rod 2 that needs to be renewed can waste time, thereby delay the work efficiency's of oil development problem.

Wherein, the outside of the fixing bolt 4 and the inside of the thread groove 3 are respectively provided with an external thread and an internal thread, and the external thread of the fixing bolt 4 is matched with the internal thread of the thread groove 3; fix outside sucker rod 1 and inside sucker rod 2 through thread groove 3 and fixing bolt 4, can carry out nimble adjustment according to the user demand of reality, avoided length not enough time internal sucker rod 2 that needs to be renewed can waste time to delay the work efficiency's of oil development problem.

The anti-skid sheet 7 is made of rubber materials, and the length value of the anti-skid sheet 7 is equal to the width value of the connecting block 6; the rubber is a high-elasticity polymer material with reversible deformation, is rich in elasticity at room temperature, can generate large deformation under the action of small external force, can recover the original shape after the external force is removed, has the characteristic of wear resistance, prevents the connecting block 6 and the internal sucker rod 2 from slipping, and can not cause damage to the inner wall of the internal sucker rod 2 in the moving process of the anti-slip sheet 7 made of the rubber material, thereby prolonging the service life of the internal sucker rod 2.

Wherein, one side of the scraper 8 and the inner wall of the internal sucker rod 2 form an inclined angle of forty-five degrees, and the scraper 8 is matched with the internal sucker rod 2; when connecting block 6 rebound, can drive

antiskid sheets

7 and 8 rebound of scraper blade, scraper blade 8 can clean and strike off the inner wall of inside sucker rod 2 at rebound in-process, thereby strike off remaining oil on the inner wall of inside sucker rod 2, the oil of striking off can be followed scraper blade 8 and flowed down, thereby collect remaining oil, the oil cost is practiced thrift, chemical elements such as sulphur and iron have been avoided simultaneously among the remaining oil raw materials, probably cause the problem of corruption to the inner space of inside sucker rod 2.

Wherein, the bottom of the mounting block 13 is vertical to the top of the fixed rod 11, and the surface of the mounting block 13 is provided with anti-skid lines; when needing to clear up remaining oil on the 2 inner walls of inside sucker rod, stretch into inside sucker rod 2 dead lever 11, make dead lever 11's bottom and the recess 9 of seting up at fixed block 12 top contact, it is rotatory again, thereby be connected dead lever 11 and fixed block 12, upwards stimulate installation piece 13 with the hand, make dead lever 11 rebound, thereby drive connecting

block

6 and 8 rebound of scraper blade and clear up and strike off remaining oil on the 2 inner walls of inside sucker rod, thereby collect remaining oil, the abundant raw materials that have contained in the oil have been avoided by extravagant problem.

The working principle is as follows: when the oil pumping device works, whether parts of the direct-connected hollow oil pumping rod can work normally is checked, whether the installation between the external oil pumping rod 1 and the connecting pipe 5 is firm is checked, when the length of the internal oil pumping rod 2 is insufficient, the internal oil pumping rod 2 is pulled upwards, a proper thread groove 3 is selected according to actual conditions, then the fixing bolt 4 penetrates through the external oil pumping rod 1 and the internal oil pumping rod 2, the external oil pumping rod 1 and the internal oil pumping rod 2 are fixed through the thread groove 3 and the fixing bolt 4, flexible adjustment can be carried out according to actual use requirements, and the problem that when the length is insufficient, the time is wasted when the internal oil pumping rod 2 needs to be replaced by a new oil pumping rod, and the working efficiency of oil exploitation is delayed is solved;

when the residual oil on the inner wall of the internal sucker rod 2 needs to be cleaned, the fixed rod 11 is extended into the internal sucker rod 2, the bottom end of the fixed rod 11 is in contact with the groove 9 formed in the top of the fixed block 12, the lug 10 can be in close contact with the groove 9 and then rotates, so that the fixed rod 11 is connected with and fixed on the fixed block 12, the mounting block 13 is pulled upwards by hands, the fixed rod 11 is moved upwards, the connecting block 6 and the scraper 8 are driven to move upwards to clean and scrape the residual oil on the inner wall of the internal sucker rod 2, when the connecting block 6 moves upwards, the anti-skid sheet 7 and the scraper 8 are driven to move upwards, the scraper 8 can clean and scrape the inner wall of the internal sucker rod 2 in the process of moving upwards, so that the residual oil on the inner wall of the internal sucker rod 2 is scraped, the scraped oil can flow downwards along the scraper 8, and then the residual oil is collected, the oil cost is saved, chemical elements such as sulfur and iron are contained in the residual oil raw materials are avoided, the problem of corrosion to the inner space of the internal sucker rod 2 is possibly caused, the anti-slip sheet 7 made of rubber materials is elastic at room temperature, large deformation can be generated under the action of small external force, the anti-slip sheet can restore to the original state after external force is removed, and meanwhile, the anti-slip sheet 7 made of rubber materials has the advantage of being wear-resistant, the problem of slipping between the connecting block 6 and the internal sucker rod 2 is prevented, meanwhile, the inner wall of the internal sucker rod 2 cannot be damaged in the moving process, and the service time of the internal sucker rod 2 is prolonged.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a direct-connected hollow sucker rod, includes outside sucker rod (1), its characterized in that: an inner sucker rod (2) is movably sleeved in an inner cavity of the outer sucker rod (1), a threaded groove (3) is formed in one side of the outer sucker rod (1), a fixing bolt (4) is sleeved on an inner thread of the threaded groove (3), and a connecting pipe (5) is fixedly connected to the bottom of the outer sucker rod (1);

one side movable mounting of inside sucker rod (2) inner chamber has antiskid sheets (7), top fixedly connected with scraper blade (8) of antiskid sheets (7), the one end fixedly connected with connecting block (6) of antiskid sheets (7), one side fixedly connected with fixed block (12) of connecting block (6), recess (9) are seted up at the top of fixed block (12), the inside movable mounting of recess (9) has dead lever (11), one side fixedly connected with lug (10) of dead lever (11) bottom, the top fixedly connected with installation piece (13) of dead lever (11).

2. The direct-connected hollow sucker rod of claim 1, wherein: the size that thread groove (3) were all seted up to one side of outside sucker rod (1) and inside sucker rod (2) equals, and all is parallel arrangement between every thread groove (3).

3. The direct-connected hollow sucker rod of claim 1, wherein: the outer portion of the fixing bolt (4) and the inner portion of the thread groove (3) are respectively provided with an external thread and an internal thread, and the external thread of the fixing bolt (4) is matched with the internal thread of the thread groove (3).

4. The direct-connected hollow sucker rod of claim 1, wherein: the anti-slip sheet (7) is made of rubber materials, and the length value of the anti-slip sheet (7) is equal to the width value of the connecting block (6).

5. The direct-connected hollow sucker rod of claim 1, wherein: one side of scraper blade (8) is forty-five degrees angle of inclination with the inner wall of inside sucker rod (2) and sets up, and scraper blade (8) and inside sucker rod (2) looks adaptation.

6. The direct-connected hollow sucker rod of claim 1, wherein: the bottom of the mounting block (13) is perpendicular to the top of the fixing rod (11), and anti-skid grains are arranged on the surface of the mounting block (13).