CN218816263U - Anti-drop's sucker rod - Google Patents

Abstract

The utility model relates to a soil layer or rock creep into technical field, especially, relate to an anti-drop's sucker rod, the electric iron comprises a pole body, the body of rod both ends are provided with upper portion connector and lower part connector respectively, upper portion connector department is equipped with the outside connecting pipe, lower part connector department is equipped with the inside connecting pipe, inside connecting pipe and outside connecting pipe pass through spiral connecting portion and can dismantle the connection, still be equipped with between inside connecting pipe and the outside connecting pipe and be used for the inserted bar connecting portion of consolidating, spiral connecting portion includes the spiral strip and the spiral rail of looks adaptation, the spiral strip sets up at the inside connecting pipe outer wall, the spiral rail sets up at the outside connecting pipe inner wall, the internal diameter of outside connecting pipe is greater than the external diameter of inside connecting pipe, inserted bar connecting portion are provided with three groups at least, inserted bar connecting portion are annular array and set up in outside connecting pipe periphery. This sucker rod passes through the limiting action each other of spiral connecting portion and inserted bar connecting portion, and reinforcing link stability prevents effectively that the body of rod from droing.

Description

Anti-drop's sucker rod

Technical Field

The utility model relates to a soil layer or the technical field that creeps into of rock especially relate to an anti-drop's sucker rod.

Background

The sucker rod is a slender rod piece of the pumping well, and is connected with a polished rod at the upper part and an oil well pump at the lower part to play a role in transmitting power. Through search, the patent with the publication number of CN216043569U discloses a high-adaptability multi-element co-permeation sucker rod, the device can be quickly spliced, the butt joint of the spliced device cannot be loosened when the device is subjected to a rotating acting force, the device can adapt to a complex external operation environment, and the adaptability and the subsequent splicing efficiency of the device are improved.

However, in practical use, a plurality of sucker rods butted with each other are influenced by their own weight, and are easy to fall off after being used for a period of time, so that the use is influenced, and a sucker rod capable of reinforcing the butted position to prevent the rod body from falling off is urgently needed.

Disclosure of Invention

In order to solve the problem that current body of rod junction easily drops, influences normal use, the utility model provides an anti-drop's sucker rod is connected adjacent body of rod through spiral connecting portion and inserted bar connecting portion, and is spacing each other, effectively reduces the unexpected emergence of the obscission of the body of rod.

The utility model provides an anti-drop's sucker rod, including the body of rod, body of rod both ends are provided with upper portion connector and lower part connector respectively, and upper portion connector department is equipped with the external connection pipe, and lower part connector department is equipped with the inside connecting pipe, and the connection can be dismantled through spiral connecting portion to inside connecting pipe and outside connecting pipe, still is equipped with between inside connecting pipe and the outside connecting pipe to be used for reinforced (rfd) inserted bar connecting portion. Through the mutual limiting action of the spiral connecting part and the inserted bar connecting part, the stability of the connecting end is enhanced, and the falling off is effectively prevented.

Further, spiral connection portion includes the helical strip and the spiral track of looks adaptation, and the helical strip sets up at inside connecting pipe outer wall, and the spiral track sets up at outside connecting pipe inner wall, and the internal diameter of outside connecting pipe is greater than the external diameter of inside connecting pipe. Through the cooperation of the great helical strip of diameter and helical track, promote the vertical ability that bears the load of link.

Furthermore, the inserted bar connecting parts are at least provided with three groups, and the inserted bar connecting parts are arranged on the periphery of the external connecting pipe in an annular array. The connecting stability is ensured by the inserting rod connecting parts which are circumferentially and uniformly distributed on the periphery of the connecting pipe.

Further, inserted bar connecting portion include sleeve and locking lever, and the sleeve is fixed to be set up on outside connecting pipe, and the locking lever passes through the spacing subassembly of elasticity and sets up on the connector of lower part, and it has the locating hole that can supply the locking lever to stretch into to open in the sleeve. The locking rod is always arranged in the sleeve through the elastic limiting component, so that fixation is realized.

Furthermore, the locking rod is provided with a limiting section and an inserting section, the diameter of the limiting section is smaller than that of the inserting section, a step is formed at the connecting surface of the limiting section and the inserting section, and the elastic limiting component is arranged at the step.

Furthermore, the elastic limiting assembly comprises a spring and a movable ring piece, the spring is sleeved on the limiting section, and the movable ring piece is abutted against the step under the action of the spring. The spring is arranged between the lower connector and the movable ring piece through the arrangement of the steps.

Furthermore, the upper edge of the positioning hole is provided with an annular guide wedge surface which is convenient for the insertion section to extend into. The opening of the guide wedge surface is larger, so that the locking rod can be inserted more conveniently.

Furthermore, the bottom of the inserting section is provided with a ball head which can conveniently extend into the positioning hole. The connection is more convenient through the matching of the ball head and the guide wedge surface.

The beneficial effects of the utility model reside in that:

the utility model provides an anti-drop's sucker rod through the cooperation of spiral connecting portion and inserted bar connecting portion, realizes the stable connection of the adjacent body of rod, and is spacing each other between spiral portion and the inserted bar portion, can effectively reduce the unexpected emergence of the phenomenon that drops of the body of rod, guarantees the stability of using.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a sucker rod;

FIG. 2 is a schematic view of the connection of two sucker rods;

FIG. 3 is a schematic view of the connection of the outer and inner connection tubes;

in the drawing, 1, a rod body, 2, an upper connector, 3, a lower connector, 4, an external connecting pipe, 5, an internal connecting pipe, 6, a spiral connecting part, 61, a spiral strip, 62, a spiral rail, 7, an inserted rod connecting part, 71, a sleeve, 72, a locking rod, 721, a limiting section, 722, an inserting section, 73, a positioning hole, 74, a guide wedge surface, 8, an elastic limiting component, 81, a spring and 82, a movable annular sheet.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments.

In order to prevent the phenomenon that the joint of adjacent rod bodies 1 falls off after being used for a long time, an anti-falling sucker rod is designed, as shown in figure 1, the sucker rod comprises a rod body 1, an upper connector 2 and a lower connector 3 are respectively arranged at two ends of the rod body 1, the upper connector 2 of the first rod body 1 is in butt joint with the lower connector 3 of the second rod body 1, and the two sucker rods are connected for use. The difference with prior art lies in, upper portion connector 2 department is equipped with outside connecting pipe 4, and lower part connector 3 department is equipped with inside connecting pipe 5, and the internal diameter of outside connecting pipe 4 slightly is greater than the external diameter of inside connecting pipe 5, realizes clearance fit, can directly peg graft inside connecting pipe 5 in the outside connecting pipe 4.

The connection can be dismantled through helical connector portion 6 to inside connection pipe 5 and outside connection pipe 4, makes connection stability good, in order to prevent to drop, still is equipped with between inside connection pipe 5 and the outside connection pipe 4 and is used for reinforced (rfd) inserted bar connecting portion 7. The fastening of the connection end is achieved by the mutual limiting action of the screw connection 6 and the insertion rod connection 7.

The spiral connecting part 6 comprises a spiral strip 61 and a spiral rail 62 which are matched, the spiral strip 61 is arranged on the outer wall of the inner connecting pipe 5, and the spiral rail 62 is arranged on the inner wall of the outer connecting pipe 4. Through rotatory inside connection pipe 5, can be through the cooperation of helical strip 61 and helical track 62 with inside connection pipe 5 stable assembly in outside connecting pipe 4, accomplish and connect, outside connecting pipe 4 and inside connection pipe 5 receive helical strip 61 and helical track 62's restriction can only accomplish the separation through the rotation, can not be through vertical pulling separation to realize anti-drop. Wherein, the vertical load that body of rod 1 received when using is great, also can promote the bearing load of link to a certain extent through the area of contact of increase outside connecting pipe 4 and inside connecting pipe 5 through setting up the great helical strip 61 of size and helical track 62.

As shown in fig. 2, to achieve stable connection, at least three groups of the plunger connecting portions 7 are provided, and the plunger connecting portions 7 are arranged on the periphery of the outer connecting pipe 4 in an annular array. The connection stability of the inner and outer connecting pipes can be further reinforced by the aid of the plurality of groups of inserting rod connecting portions 7 distributed in the circumferential direction.

The inserted link connecting part 7 comprises a sleeve 71 and a locking rod 72, the sleeve 71 is fixedly arranged on the external connecting pipe 4, the locking rod 72 is arranged on the lower connecting head 3 through an elastic limiting component 8, and a positioning hole 73 for the locking rod 72 to extend into is formed in the sleeve 71. The locking rod 72 can be always positioned in the positioning hole 73 through the elastic limiting assembly 8, the locking rod 72 can only be separated through vertical movement, and the locking rod 72 cannot be separated through rotation, namely, the locking rod can be limited by the spiral connecting part 6 and the inserted rod connecting part 7, so that the phenomenon that the rod body 1 falls off accidentally can be effectively reduced.

As shown in fig. 3, the locking rod 72 has a limiting section 721 and an inserting section 722, the diameter of the limiting section 721 is smaller than that of the inserting section 722, a step is formed at the connecting surface of the limiting section 721 and the inserting section 722, and the elastic limiting component 8 is disposed at the step.

The elastic limiting component 8 comprises a spring 81 and a movable ring plate 82, the spring 81 is sleeved on the limiting section 721, and the movable ring plate 82 is abutted against the step under the action of the spring 81. The locking rod 72 can be continuously pushed by the elastic action of the spring 81, so that the locking rod 72 moves towards the direction close to the sleeve 71, and the locking rod 72 can be stably inserted into the positioning hole 73.

In order to facilitate the insertion section 722 to extend into the positioning hole 73, the upper edge of the positioning hole 73 is provided with an annular guiding wedge surface 74, and the bottom of the insertion section 722 is correspondingly provided with a ball head which facilitates the insertion into the positioning hole 73.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (8)

1. The utility model provides an anti-drop's sucker rod, includes the body of rod (1), body of rod (1) both ends are provided with upper portion connector (2) and lower part connector (3) respectively, its characterized in that: upper portion connector (2) department is equipped with external connection pipe (4), lower part connector (3) department is equipped with internal connection pipe (5), the connection can be dismantled through spiral connection portion (6) in internal connection pipe (5) and external connection pipe (4), still be equipped with between internal connection pipe (5) and external connection pipe (4) and be used for reinforced (rfd) inserted bar connecting portion (7).

2. The anti-drop sucker rod of claim 1 wherein: spiral connection portion (6) include helical strip (61) and helical track (62) of looks adaptation, helical strip (61) set up in inside connecting pipe (5) outer wall, helical track (62) set up outside connecting pipe (4) inner wall, the internal diameter of outside connecting pipe (4) is greater than the external diameter of inside connecting pipe (5).

3. The anti-drop sucker rod of claim 1 wherein: the inserted bar connecting parts (7) are at least provided with three groups, and the inserted bar connecting parts (7) are arranged on the periphery of the external connecting pipe (4) in an annular array manner.

4. A drop preventing sucker rod according to claim 3 wherein: the inserted bar connecting part (7) comprises a sleeve (71) and a locking rod (72), the sleeve (71) is fixedly arranged on the external connecting pipe (4), the locking rod (72) is arranged on the lower connecting head (3) through an elastic limiting assembly (8), and a positioning hole (73) for the locking rod (72) to extend into is formed in the sleeve (71).

5. The anti-drop sucker rod of claim 4 wherein: the locking rod (72) is provided with a limiting section (721) and an inserting section (722), the diameter of the limiting section (721) is smaller than that of the inserting section (722), a step is formed at the connecting surface of the limiting section (721) and the inserting section (722), and the elastic limiting component (8) is arranged at the step.

6. The anti-drop sucker rod of claim 5 wherein: the elastic limiting assembly (8) comprises a spring (81) and a movable ring piece (82), the spring (81) is sleeved on the limiting section (721), and the movable ring piece (82) is abutted against the step under the action of the spring (81).

7. The anti-drop sucker rod of claim 5 wherein: and the upper edge of the positioning hole (73) is provided with an annular guide wedge surface (74) which is convenient for the insertion section (722) to extend into.

8. The anti-drop sucker rod of claim 7 wherein: the bottom of the inserting section (722) is provided with a ball head which is convenient to extend into the positioning hole (73).

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