CN203009275U - Double-release connecting-tripping device - Google Patents
Double-release connecting-tripping device Download PDFInfo
- Publication number
- CN203009275U CN203009275U CN 201320025412 CN201320025412U CN203009275U CN 203009275 U CN203009275 U CN 203009275U CN 201320025412 CN201320025412 CN 201320025412 CN 201320025412 U CN201320025412 U CN 201320025412U CN 203009275 U CN203009275 U CN 203009275U
- Authority
- CN
- China
- Prior art keywords
- body assembly
- sleeve
- guide rod
- assembly
- sliding sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model discloses a double-release connecting-tripping device which is applicable to down hole oil production operation. The device consists of an upper body assembly (5) and a lower body assembly (8), wherein the upper end of an outer sleeve (2) of the upper body assembly (5) is connected with a sucker rod string (1); two convex claws are arranged at the lower end of the outer sleeve (2); a spiral groove is formed in an inner hole of the outer sleeve (2); the outer sleeve (2) is internally provided with a locking spring (3) and a sliding block (4); a spiral groove is formed in the lower end face of the sliding block (4); a conical seeker is arranged at the upper end of a guide rod (11) of the lower body assembly (8); a rotary sleeve (12) and a sliding sleeve (14) are arranged on the guide rod (11); the two convex claws are arranged at the upper end of the rotary sleeve (12); a spiral groove is formed in the surface of an excircle; a flat groove is formed in an inner hole of the sliding sleeve (14), and matched with a flat groove in an excircle at the upper end of a lower connector (16); and the lower end of the lower connector (16) is connected with an oil well pump plunger assembly (10). The device can achieve lifting release and rotary release functions between the sucker rod string and the oil well pump plunger assembly, and can prevent release rupture.
Description
Technical field
The utility model relates to oil pump plunger assembly in a kind of mechanical oil production system is connected use with sucker rod bilingual connecting-and-unconnecting device device, is applicable to the down-hole oil production operation.
Background technique
The connecting means for oil pump of at present extensive use is carried on being mainly and is freed structural type.The characteristics of this structural type are to complete by the resiliently deformable of self structure to free action, operation process is workable, but due to the load-carrying unit that has resiliently deformable, can not avoid stress raisers and distortion due to the manufacture process generation, cause the even generation of phenomenon of rupture of discontinuity in using process, the ability of Junk prevention is lower in addition, easily stop up at joint, the normal docking of impact, and can't use when holddown, can only break by force and take off, normal operation process is impacted.
Summary of the invention
The purpose of this utility model is to provide a kind of bilingual connecting-and-unconnecting device device, carries on possessing freeing and rotating and frees the structure that unites two into one, and carries on can realizing between oil pump plunger assembly and sucker rod freeing and function is freed in rotation, prevents from freeing the generation of phenomenon of rupture.
The utility model is comprised of upper body assembly and lower body assembly two-part, the outer set upper side of its upper body assembly is provided with screw thread and connects with rod string, and the overcoat lower end is provided with two dogs, and endoporus has spiral chute, locking spring and slide block are housed in overcoat, and spiral chute is opened in the lower end surface of slide block; Lower body assembly guide rod connects with lower contact, the upper end of guide rod is provided with a taper target seeker that matches with the lower end surface spiral chute of the slide block of upper body assembly, rotary sleeve and sliding sleeve are housed on guide rod, the rotary sleeve upper end is provided with two dogs, outer round surface has spiral chute, the sliding sleeve endoporus has flat groove, and lower contact upper end cylindrical is provided with the flat groove that matches with the sliding sleeve endoporus, and the lower end is provided with screw thread and is connected with oil pump plunger assembly.When underground work, transfer rod string and upper body assembly, make in advance the guide rod of the lower body assembly of going into the well with oil pump plunger assembly, enter under the guiding of taper target seeker in the endoporus spiral chute of upper body assembly overcoat, and the taper target seeker is locked under the promotion of spring by slide block, rod string is connected with oil pump plunger assembly.When underground work is freed again, on carry rod string, up under the promotion that slides over spring in connecting-and-unconnecting device lower body assembly, when sliding sleeve goes upward to releasing-joint place between oil pipe and oil pump sleeve, the rotation of locating stud driven rotary on sliding sleeve cover, the dog on rotary sleeve promote the outer dog that puts and rotate together, make between overcoat in the assembly of connecting-and-unconnecting device upper body and the guide rod in the lower body assembly and produce relative movement, thereby the upper and lower assembly of connecting-and-unconnecting device is separated, complete the process of freeing.When the holddown operation occured, the rotary sucker rod post made between overcoat and the guide rod in the lower body assembly in the assembly of connecting-and-unconnecting device upper body and produces relative movement, thereby makes the separation of connecting-and-unconnecting device upper and lower body assembly, completes the process of freeing.
The utility model novelty simple in structure can realize completing between oil pump plunger assembly and sucker rod carrying on normal and free and function is freed in the rotation in the holddown situation.
Description of drawings
Fig. 1 is the utility model structure principle chart
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
The utility model is comprised of upper body assembly (5) and lower body assembly (8) two-part, overcoat (2) upper end of its upper body assembly (5) is provided with screw thread and connects with rod string (1), overcoat (2) lower end is provided with two dogs, endoporus has spiral chute, locking spring (3) and slide block (4) are housed in overcoat (2), and spiral chute is opened in the lower end surface of slide block (4); lower body assembly (8) guide rod (11) connects with lower contact (16), the upper end of guide rod (11) is provided with a taper target seeker that matches with the lower end surface spiral chute of slide block (4), rotary sleeve (12) and sliding sleeve (14) are housed on guide rod (11), rotary sleeve (12) upper end is provided with two dogs, outer round surface has spiral chute, sliding sleeve (14) endoporus has flat groove, lower contact (16) upper end cylindrical is provided with the flat groove that matches with sliding sleeve (14) endoporus, the lower end is connected with oil pump plunger assembly (10).When underground work, transfer rod string (1) and upper body assembly (5), make in advance the guide rod (11) of the lower body assembly (8) of going into the well with oil pump plunger assembly (10), enter under the guiding of taper target seeker in the endoporus spiral chute of overcoat (2) of upper body assembly (5), and the taper target seeker is locked under the promotion of spring (3) by slide block (4), rod string (1) is connected with oil pump plunger assembly (10).when underground work is freed again, on carry rod string (1), sliding sleeve (14) in lower body assembly (8) is up under the promotion of spring (15), when the releasing-joint (7) that sliding sleeve (14) goes upward between oil pipe (6) and oil pump sleeve (9) is located, locating stud (13) driven rotary cover (12) rotation on sliding sleeve (14), the dog that dog on rotary sleeve (12) promotes on overcoat (2) rotates together, make between overcoat (2) in upper body assembly (5) and the guide rod (11) in lower body assembly (8) and produce relative movement, thereby upper body assembly (5) is separated with lower body assembly (8), complete the process of freeing.When the holddown operation occurs when, rotary sucker rod post (1), make between the guide rod (11) of the overcoat (2) of upper body assembly (5) and lower body assembly (8) and produce relative movement, thereby upper body assembly (5) is separated with lower body assembly (8), complete the process of freeing.Carry on the utility model can be realized between rod string (1) and oil pump plunger assembly (10) and freeing and function is freed in rotation, can prevent from freeing the generation of phenomenon of rupture.
Claims (1)
1. bilingual connecting-and-unconnecting device device, it is comprised of upper body assembly (15) and lower body assembly (16), it is characterized in that in the overcoat (2) of upper body assembly (15), locking spring (3) and slide block (4) being housed, spiral chute is opened in the lower end surface of slide block (4), overcoat (2) lower end is provided with two dogs, and endoporus has spiral chute; Lower body assembly (16) guide rod connects with lower contact (16), the upper end of guide rod (9) is provided with a taper target seeker that matches with the lower end surface spiral chute of slide block (4), rotary sleeve (10) and sliding sleeve are housed on guide rod, the rotary sleeve upper end is provided with two dogs, outer round surface has spiral chute, sliding sleeve (12) endoporus has flat groove, and lower contact (14) upper end cylindrical is provided with the flat side who matches with the flat groove of sliding sleeve endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025412 CN203009275U (en) | 2013-01-07 | 2013-01-07 | Double-release connecting-tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025412 CN203009275U (en) | 2013-01-07 | 2013-01-07 | Double-release connecting-tripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009275U true CN203009275U (en) | 2013-06-19 |
Family
ID=48600873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320025412 Expired - Lifetime CN203009275U (en) | 2013-01-07 | 2013-01-07 | Double-release connecting-tripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953132A (en) * | 2018-08-07 | 2018-12-07 | 青岛理工大学 | Coal bed gas well mining pumps jack catchs type helical tooth centralising device |
-
2013
- 2013-01-07 CN CN 201320025412 patent/CN203009275U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953132A (en) * | 2018-08-07 | 2018-12-07 | 青岛理工大学 | Coal bed gas well mining pumps jack catchs type helical tooth centralising device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |