CN112483012A - Anti-drop and anti-tensile sucker rod coupling - Google Patents
Anti-drop and anti-tensile sucker rod coupling Download PDFInfo
- Publication number
- CN112483012A CN112483012A CN202011433557.6A CN202011433557A CN112483012A CN 112483012 A CN112483012 A CN 112483012A CN 202011433557 A CN202011433557 A CN 202011433557A CN 112483012 A CN112483012 A CN 112483012A
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- rod
- coupling body
- sucker rod
- coupling
- boss
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- 230000008878 coupling Effects 0.000 title claims abstract description 83
- 238000010168 coupling process Methods 0.000 title claims abstract description 83
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 83
- 239000000872 buffer Substances 0.000 claims abstract description 64
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 24
- 230000035939 shock Effects 0.000 abstract 1
- 210000000078 claw Anatomy 0.000 description 7
- 238000000605 extraction Methods 0.000 description 7
- 230000001174 ascending effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention provides an anti-drop and anti-tensile sucker rod coupling in the technical field of sucker rod connection, which comprises a coupling body with a containing cavity, wherein a buffer rod is connected in the coupling body in a sliding manner, a limit step is arranged on the coupling body, a limit boss is arranged on the buffer rod and can be abutted against the limit step, an installation cavity is formed in the buffer rod, internal threads are arranged on the buffer rod where the installation cavity is located, a spring is sleeved on the buffer rod on the inward side of the limit boss, one end of the coupling body is connected with a fixing component, the fixing component comprises a connecting rod connected to the inner wall of the coupling body, an anti-drop buckle is arranged on the connecting rod, external threads are arranged on the connecting rod on the outer side of the anti-drop buckle, a sealing sleeve is further sleeved on the connecting rod and can press a sucker rod on the connecting rod, the fixing component further comprises a connecting nut; the sucker rod is not easy to damage and has good shock resistance.
Description
Technical Field
The invention belongs to the technical field of sucker rod connection, and particularly relates to an anti-drop and anti-tensile sucker rod coupling.
Background
When the oil extraction industry is used for oil pumping operation, carbon fiber sucker rods with better strength and corrosion resistance are generally applied, the manufacturing process of the sucker rods is relatively simple, and the requirement of oil extraction can be basically met. The sucker rod reciprocates up and down in the oil pumping process, and the tensile strength is a key factor.
The anti-drop hollow sucker rod connecting structure comprises a sleeve arranged on the outer rotary surface of an upper joint and a lower joint which are spliced, wherein two ends of the sleeve are respectively provided with internal threads with opposite rotary directions, the upper joint is sleeved with a connecting ring which is in threaded connection with one end of the sleeve, and one end of the connecting ring is matched with and tightly contacted with the shape of a shaft shoulder on the upper joint; the lower joint is in threaded connection with the other end of the sleeve; sealing structures are arranged between the upper joint and the revolution surface of the sleeve and between the lower joint and the revolution surface of the sleeve; however, in the oil extraction process of the device, when the sucker rod performs up-and-down reciprocating motion, each sucker rod can be subjected to great impact stress, and further the sucker rod or the sucker rod coupling is broken and damaged, the service life is short, the damage of the sucker rod in the whole device needs to replace the whole sucker rod, the cost is high, the production is influenced, and the working efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to overcome the defects in the prior art, solve the technical problem that the sucker rod in the prior art is easy to fatigue and damage, and provide the anti-drop and anti-tensile sucker rod coupling.
The purpose of the invention is realized as follows: an anti-drop and anti-tensile sucker rod coupling comprises a coupling body with a containing cavity, wherein a buffer rod is connected in the coupling body in a sliding manner, a limiting step is arranged on the coupling body, a limiting boss is arranged on the buffer rod and can be abutted against the limiting step, an installation cavity is formed in the buffer rod on the outward side of the limiting boss, an internal thread is formed in the buffer rod where the installation cavity is located, a spring is sleeved on the buffer rod on the inward side of the limiting boss, one end of the coupling body is connected with a fixing component, the fixing component comprises a connecting rod in threaded connection with the inner wall of the coupling body, one end of the spring is connected onto the buffer rod, the other end of the spring is connected onto the connecting rod, a sliding cavity is formed in the connecting rod, the buffer rod extends into the sliding cavity and is connected with the connecting rod in a sliding manner, a, the sliding cavity is communicated with the mounting cavity through the through hole, the anti-falling buckle is arranged on the connecting rod, external threads matched with the sucker rod are arranged on the connecting rod and outside the anti-falling buckle, a sealing sleeve is further sleeved on the connecting rod and can compress the sucker rod on the connecting rod, the fixing assembly further comprises a connecting nut which is in threaded connection with the outer side of the coupling body, and the sealing sleeve is compressed on the anti-falling buckle by the connecting nut.
When the invention is connected with a sucker rod, one end of the sucker rod above is screwed into the installation cavity to lead the sucker rod to be in threaded connection with the internal thread of the buffer rod, then the sucker rod below is in threaded connection with the external thread of the connecting rod to lead the sucker rod below to be clamped by the anti-slip ring buckle, finally the sealing sleeve is sleeved on the sucker rod to lead the sealing ring to tightly press the anti-slip ring buckle and the sucker rod, finally the connecting nut is locked with the coupling body to realize the connection of the two sucker rods, the steps are repeated, the sucker rods are mutually connected according to the requirement of oil extraction depth to realize the connection of a plurality of sucker rods, when oil extraction is carried out, the sucker rod above is upwards moved by the tensile force, the buffer rod above pulls the buffer rod, the buffer rod upwards moves along the accommodating cavity, the spring is stretched, the instantaneous tensile force of the sucker rod above is buffered, the coupling body starts to move upwards, the coupling body drives the connecting rod, the connecting rod drives the sucker rod below to move upwards, the ascending movement of a plurality of sucker rods is realized, when the sucker rod ascends to a set position, the restoring force of the spring drives the buffer rod to return to an initial position, when the sucker rod above moves downwards, the sucker rod above pushes the buffer rod downwards, the buffer rod moves downwards along the accommodating cavity, meanwhile, the buffer rod also moves downwards along the sliding cavity, the spring is compressed, the connecting rod is stressed, the connecting rod drives the sucker rod below to move downwards, the compression of the spring buffers the instantaneous impact force of the sucker rod above, and when the sucker rod descends to the set position, the restoring force of the spring drives the buffer rod to return to the initial position; in the process of ascending and descending of the sucker rod, the sucker rods are mutually pulled and impacted, and the buffer rod, the spring and the connecting rod are jointly arranged to buffer the sucker rod, so that a buffer space is formed among the coupling body, the buffer rod and the connecting rod, the sucker rod is prevented from being damaged, the service life of the sucker rod is prolonged, the use cost is low, and the sucker rod connecting tool can be applied to connecting the sucker rods.
In order to prevent the sucker rod from falling off, the coupling body is close to the one end of connecting rod and opens there is the connection chamber, connects the chamber and holds and be equipped with spacing platform on the coupling body between the chamber, the anticreep latch closure is including spacing portion, and when the connecting rod was connected on the coupling body, spacing portion was contradicted at spacing bench, be equipped with the elasticity extension of outside extension in spacing portion, form the installation space that can hold the sucker rod between elasticity extension and the connecting rod.
When the female connection in order to realize sucker rod and buffer beam, further fixed sucker rod, the other end of coupling body is equipped with coupling assembling, coupling assembling includes the sliding sleeve of suit on the coupling body, the outside one end of sliding sleeve is equipped with the sliding sleeve boss that extends towards installation cavity place direction, it has the fluting to open on the sliding sleeve, it has the fixed orifices that is linked together with the fluting to open on the coupling body, and the fixed orifices internal connection has the fixing bolt who is used for fixed sliding sleeve.
In order to enable the sliding sleeve to firmly lock the sucker rod, the groove comprises a sliding groove extending along the axial direction of the coupling body, a fixing groove communicated with the sliding groove is formed in the inward side of the sliding groove, and the fixing groove is perpendicular to the sliding groove.
In order to prevent the sucker rod from falling off from the buffer rod, at least two clamping jaws are arranged between the sliding sleeve and the coupling body, one end of each clamping jaw is provided with a clamping jaw boss extending towards the direction of the installation cavity, the clamping jaw on the outward side of each clamping jaw boss is provided with a connecting groove, the coupling body is provided with a connecting boss matched with the connecting groove, and when the connecting boss is clamped into the connecting groove, the clamping jaw boss is abutted against the connecting boss; the other end of jack catch is equipped with the joint that extends towards the installation cavity place direction, still is equipped with the draw-in groove on the jack catch between joint and the spread groove, but the joint of sliding sleeve boss joint is in the draw-in groove, and when sucker rod and buffer beam internal thread connection, the sucker rod is lived to the joint, and the sliding sleeve boss crosses the joint and locks the joint.
In order to realize sealing, install sealing washer one in the installation cavity, be equipped with the trompil that is linked together with the through-hole on the sealing washer, sealing washer one end inwards is equipped with sealed protruding circle, still opens on the buffer beam at installation cavity place with sealed protruding circle matched with joint groove.
In order to realize sealing, a sealing groove is formed in the connecting rod extending into the accommodating cavity, and a second sealing ring is connected in the sealing groove.
In order to facilitate the connection rod to be screwed into the accommodating cavity, the end part of the outward side of the connection rod is provided with a connector used for being screwed into the accommodating cavity.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a right side view of the present invention.
Fig. 3 is a view from a-a of fig. 2.
Fig. 4 is a perspective view of the present invention.
FIG. 5 is a schematic view of the structure of the sucker rod of the present invention.
In the figure: the coupling comprises a coupling body 1, a 101 accommodating cavity, a 102 limiting step, a 103 fixing hole, a 104 connecting boss, a 105 connecting cavity, a 106 limiting table, a 2 buffer rod, a 201 limiting boss, a 202 mounting cavity, an 203 internal thread, a 204 through hole, a 205 clamping groove, a 3 spring, a 4 fixing component, a 401 connecting rod, a 401a sliding cavity, a 402 sealing groove, a 403 external thread, a 404 anti-disengagement buckle, a 404a limiting part, a 404b elastic extension part, a sealing sleeve, a 5 connecting component, a 501 sliding sleeve, a 501a sliding sleeve boss, a 501b sliding groove, a 501c fixing groove, a 6 fixing bolt, a 7 clamping jaw, a 701 clamping jaw boss, a 702 connecting groove, a 703 clamping joint, a 704 clamping groove, 8 connecting nuts, a 9 sealing ring I, a 901 sealing convex ring, a 10 sealing ring II, a 11 connecting head, a 12 sucker rod, a 1201 extension boss, 1202.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in figures 1-5, an anti-drop and anti-tensile sucker rod coupling comprises a coupling body 1 with a containing cavity 101, a buffer rod 2 is slidably connected in the coupling body 1, a limiting step 102 is arranged on the coupling body 1, a limiting boss 201 is arranged on the buffer rod 2, the limiting boss 201 can abut against the limiting step 102, an installation cavity 202 is arranged on the buffer rod 2 at the outward side of the limiting boss 201, an internal thread 203 is arranged on the buffer rod 2 at the installation cavity 202, a spring 3 is sleeved on the buffer rod 2 at the inward side of the limiting boss 201, one end of the coupling body 1 is connected with a fixing component 4, the fixing component 4 comprises a connecting rod 401 which is in threaded connection with the inner wall of the coupling body 1, one end of the spring 3 is connected on the buffer rod 2, the other end of the spring 3 is connected on the connecting rod 401, a sliding cavity 401a is arranged on the connecting rod 401, the buffer rod 2 extends into the, the buffer rod 2 is provided with a through hole 204, the sliding cavity 401a is communicated with the mounting cavity 202 through the through hole 204, the connecting rod 401 is provided with an anti-falling buckle 404, the connecting rod 401 outside the anti-falling buckle 404 is provided with an external thread 403 matched with the sucker rod 12, the connecting rod 401 is also sleeved with a sealing sleeve 405, the sealing sleeve 405 can press the sucker rod 12 on the connecting rod 401, the fixing component 4 further comprises a connecting nut 8 in threaded connection with the outer side of the coupling body 1, and the sealing sleeve 405 is pressed on the anti-falling buckle 404 by the connecting nut 8; a connecting cavity 105 is formed in one end, close to the connecting rod 401, of the coupling body 1, a limiting table 106 is arranged on the coupling body 1 between the connecting cavity 105 and the accommodating cavity 101, the anti-disengaging buckle 404 comprises a limiting portion 404a, when the connecting rod 401 is connected to the coupling body 1, the limiting portion 404a abuts against the limiting table 106, an elastic extending portion 404b extending outwards is arranged on the limiting portion 404a, and an installation space capable of accommodating the sucker rod 12 is formed between the elastic extending portion 404b and the connecting rod 401; the other end of the coupling body 1 is provided with a connecting assembly 5, the connecting assembly 5 comprises a sliding sleeve 501 sleeved on the coupling body 1, one outward end of the sliding sleeve 501 is provided with a sliding sleeve boss 501a extending towards the direction of the installation cavity 202, the sliding sleeve 501 is provided with a slot, the coupling body 1 is provided with a fixing hole 103 communicated with the slot, and a fixing bolt 6 for fixing the sliding sleeve 501 is connected in the fixing hole 103; the groove comprises a sliding groove 501b extending along the axial direction of the coupling body 1, a fixing groove 501c communicated with the sliding groove 501b is arranged on the inward side of the sliding groove 501b, and the fixing groove 501c is perpendicular to the sliding groove 501 b; at least two clamping jaws 7 are arranged between the sliding sleeve 501 and the coupling body 1, one end of each clamping jaw 7 is provided with a clamping jaw boss 701 extending towards the direction of the installation cavity 202, the clamping jaw 7 on the outward side of each clamping jaw boss 701 is provided with a connecting groove 702, the coupling body 1 is provided with a connecting boss 104 matched with the connecting groove 702, and when the connecting boss 104 is clamped into the connecting groove 702, the clamping jaw bosses 701 are abutted against the connecting bosses 104; the other end of the claw 7 is provided with a clamping joint 703 extending towards the direction of the installation cavity 202, a clamping groove 704 is further arranged on the claw 7 between the clamping joint 703 and the connecting groove 702, a sliding sleeve boss 501a can be clamped in the clamping groove 704, when the sucker rod 12 is connected with the internal thread 203 of the buffer rod 2, the sucker rod 12 is clamped by the clamping joint 703, and the sliding sleeve boss 501a crosses the clamping joint 703 to lock the clamping joint 703; a first sealing ring 9 is arranged in the mounting cavity 202, an opening communicated with the through hole 204 is formed in the sealing ring, a sealing convex ring 901 is arranged at the inward end of the first sealing ring 9, and a clamping groove 205 matched with the sealing convex ring 901 is further formed in the buffer rod 2 where the mounting cavity 202 is located; a sealing groove 402 is formed in the connecting rod 401 extending into the accommodating cavity 101, and a second sealing ring 10 is connected in the sealing groove 402; the end of the connecting rod 401 on the outward side is provided with a connector 11 for screwing into the accommodating cavity 101.
As a further improvement of the invention, one end of the sucker rod 12 is provided with an internal connecting thread 1203 matched with the external thread 403, the other end of the sucker rod 12 is provided with an extension boss 1201 used for pushing the clamping joint 703, and the sucker rod 12 at the outward side of the extension boss 1201 is provided with an external connecting thread 1202 matched with the internal thread 203.
In the initial state of the invention, the elastic boss is clamped in the clamping groove 704, when the invention is connected with the sucker rod 12, one end of the sucker rod 12 above is screwed into the installation cavity 202, the extending boss 1201 on the sucker rod 12 pushes the clamping head 703 to rotate inwards, after the external connecting thread 1202 of the sucker rod 12 is in threaded fit with the internal thread 203 of the buffer rod 2, the claw 7 is in a horizontal state, the sucker rod 12 is just clamped, then the fixing bolt 6 is loosened, the sliding sleeve 501 is moved outwards in a rotating way, the fixing bolt 6 slides along the sliding groove 501b and is clamped in the fixing groove 501c, the fixing bolt 6 is locked, the claw 7 is locked by the sliding sleeve 501, the connection of the sucker rod 12 above is realized, then one end of the sucker rod 12 below with the internal connecting thread 1203 is screwed into the connection cavity 105, the internal connecting thread 1203 is in threaded connection with the external thread 403 of the connecting rod 401, the sucker rod 12 below is abutted on, the sucker rod 12 is blocked by the elastic extension part 404b, finally the sealing sleeve 405 is sleeved on the sucker rod 12, the anti-falling ring buckle 404 and the sucker rod 12 are tightly pressed by the sealing ring, finally the coupling body 1 is locked by the connecting nut 8, the connection of two sucker rods 12 is realized, the above steps are repeated, the sucker rods 12 are mutually connected according to the requirement of oil extraction depth, the connection of a plurality of sucker rods 12 is realized, when oil extraction is carried out, the upper sucker rod 12 is upwards moved by tensile force, the upper sucker rod 12 pulls the buffer rod 2, the buffer rod 2 upwards moves along the accommodating cavity 101, the spring 3 is stretched, the instantaneous tensile force of the upper sucker rod 12 is buffered by the stretching of the spring 3, when the limit boss 201 is abutted against the limit step 102, the coupling body 1 starts to upwards move, the coupling body 1 drives the connecting rod 401, the connecting rod 401 drives the lower sucker, realize the ascending movement of a plurality of sucker rods 12, when ascending to the set position, the restoring force of the spring 3 drives the buffer rod 2 to return to the initial position, in the process that the sucker rod 12 bears the tensile force, the claw 7 firmly locks the sucker rod 12 above the claw 7, the sliding sleeve 501 further locks the claw 7 to form a double-layer anti-falling insurance, so that the sucker rod 12 above is connected more firmly, the anti-falling insurance of the sucker rod 12 below is realized by the combined action of the anti-falling ring buckle 404, the sealing sleeve 405 and the connecting nut 8, so that the sucker rod 12 below is connected more firmly, when the sucker rod 12 above moves downwards, the sucker rod 12 above pushes the buffer rod 2 downwards, the buffer rod 2 moves downwards along the accommodating cavity 101, meanwhile, the buffer rod 2 also moves downwards along the sliding cavity 401a, the spring 3 is compressed, the connecting rod 401 is stressed, the connecting rod 401 drives the sucker rod 12 below, the compression of the spring 3 buffers the instantaneous impact force of the sucker rod 12 above, and when the sucker rod descends to a set position, the restoring force of the spring 3 drives the buffer rod 2 to restore to the initial position; in the process of ascending and descending the sucker rod 12, the sucker rod 12 is mutually pulled and impacted, the buffer rod 2, the spring 3 and the connecting rod 401 are jointly arranged to buffer the sucker rod 12, so that a buffer space is formed among the coupling body 1, the buffer rod 2 and the connecting rod 401, the sucker rod 12 is prevented from being damaged, the service life of the sucker rod 12 is prolonged, and the use cost is low; the arrangement of the clamping jaw 7, the sliding sleeve 501 and the connecting sleeve can prevent the sucker rod 12 from falling off, so that the sucker rod 12 is connected more firmly, and the sucker rod connecting device is convenient to use and reliable in structure; the setting of anticreep latch closure 404, seal cover 405 and coupling nut 8 prevents that sucker rod 12 from taking off, and firm in connection can be applied to in the connection frock of sucker rod 12.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts based on the disclosed technical solutions, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (8)
1. The utility model provides an anti-drop tensile sucker rod coupling which characterized in that: the coupling comprises a coupling body with a containing cavity, a buffer rod is connected in the coupling body in a sliding manner, a limiting step is arranged on the coupling body, a limiting boss is arranged on the buffer rod and can be abutted against the limiting step, an installation cavity is arranged on the buffer rod on one side, outward, of the limiting boss, an internal thread is arranged on the buffer rod where the installation cavity is located, a spring is sleeved on the buffer rod on one side, inward, of the limiting boss, one end of the coupling body is connected with a fixing component, the fixing component comprises a connecting rod in threaded connection with the inner wall of the coupling body, one end of the spring is connected onto the buffer rod, the other end of the spring is connected onto the connecting rod, a sliding cavity is arranged on the connecting rod, the buffer rod extends into the sliding cavity and is connected with the connecting rod in a sliding manner, a through hole is arranged on the buffer, the anti-drop coupling is characterized in that an anti-drop ring buckle is arranged on the connecting rod, an external thread matched with the sucker rod is arranged on the connecting rod and outside the anti-drop ring buckle, a sealing sleeve is sleeved on the connecting rod and can compress the sucker rod on the connecting rod, the fixing assembly further comprises a connecting nut which is in threaded connection with the outer side of the coupling body, and the sealing sleeve is compressed on the anti-drop ring buckle by the connecting nut.
2. The anti-drop and anti-tensile sucker rod coupling of claim 1, wherein: the coupling body is close to the one end of connecting rod and opens there is the connection chamber, connects the chamber and holds and be equipped with spacing platform on the coupling body between the chamber, the anticreep latch closure is including spacing portion, and when the connecting rod was connected on the coupling body, spacing portion was conflicted at spacing bench, be equipped with the elasticity extension of outside extension in spacing portion, form the installation space that can hold the sucker rod between elasticity extension and the connecting rod.
3. The anti-drop and anti-tensile sucker rod coupling of claim 1, wherein: the other end of coupling body is equipped with coupling assembling, coupling assembling includes the slip cap of suit on the coupling body, the outside one end of slip cap is equipped with the sliding sleeve boss that extends towards installation cavity place direction, it has the fluting to open on the slip cap, it has the fixed orifices that is linked together with the fluting to open on the coupling body, the fixed orifices internal connection has the fixing bolt who is used for fixed slip cap.
4. The anti-drop and anti-tensile sucker rod coupling of claim 3, wherein: the fluting includes the sliding tray that extends along coupling body axial direction, the sliding tray is equipped with the fixed slot that communicates with the sliding tray towards inside one side, the fixed slot sets up with the sliding tray is perpendicular.
5. The anti-drop and anti-tensile sucker rod coupling of claim 4, wherein: at least two clamping jaws are arranged between the sliding sleeve and the coupling body, a clamping jaw boss extending towards the direction of the installation cavity is arranged at one end of each clamping jaw, a connecting groove is formed in the clamping jaw at the outer side of the clamping jaw boss, a connecting boss matched with the connecting groove is arranged on the coupling body, and when the connecting boss is clamped into the connecting groove, the clamping jaw boss is abutted against the connecting boss; the other end of jack catch is equipped with the joint that extends towards the installation cavity place direction, still is equipped with the draw-in groove on the jack catch between joint and the spread groove, but the joint of sliding sleeve boss joint is in the draw-in groove, and when sucker rod and buffer beam internal thread connection, the sucker rod is lived to the joint, and the sliding sleeve boss crosses the joint and locks the joint.
6. The anti-drop and anti-tensile sucker rod coupling of claim 5, wherein: the mounting cavity is internally provided with a first sealing ring, the first sealing ring is provided with an opening communicated with the through hole, one inward end of the first sealing ring is provided with a convex sealing ring, and a clamping groove matched with the convex sealing ring is further formed in the buffer rod where the mounting cavity is located.
7. The anti-drop and anti-tensile sucker rod coupling of claim 6, wherein: the connecting rod extending into the accommodating cavity is provided with a sealing groove, and a sealing ring II is connected in the sealing groove.
8. The anti-drop and anti-tensile sucker rod coupling according to any one of claims 1 to 7, which is characterized in that: the end part of the outward side of the connecting rod is provided with a connector used for being screwed into the accommodating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011433557.6A CN112483012A (en) | 2020-12-10 | 2020-12-10 | Anti-drop and anti-tensile sucker rod coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011433557.6A CN112483012A (en) | 2020-12-10 | 2020-12-10 | Anti-drop and anti-tensile sucker rod coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112483012A true CN112483012A (en) | 2021-03-12 |
Family
ID=74940843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011433557.6A Withdrawn CN112483012A (en) | 2020-12-10 | 2020-12-10 | Anti-drop and anti-tensile sucker rod coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112483012A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153172A (en) * | 2021-03-22 | 2021-07-23 | 东营市三和石油装备有限公司 | Full spray welding high temperature resistant anticorrosion sucker rod |
-
2020
- 2020-12-10 CN CN202011433557.6A patent/CN112483012A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153172A (en) * | 2021-03-22 | 2021-07-23 | 东营市三和石油装备有限公司 | Full spray welding high temperature resistant anticorrosion sucker rod |
| CN113153172B (en) * | 2021-03-22 | 2023-10-20 | 东营市三和石油装备有限公司 | Full spray welding high temperature resistant anticorrosion sucker rod |
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Application publication date: 20210312 |