CN211598547U

CN211598547U - Adjustable pressure coupling

Info

Publication number: CN211598547U
Application number: CN201922000358.5U
Authority: CN
Inventors: 卢斌; 刘宗魁
Original assignee: Tianjin Jinggong Petroleum Special Pipe Fittings Co ltd
Current assignee: Tianjin Jinggong Petroleum Special Pipe Fittings Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-09-29
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses an adjustable pressure coupling, concretely relates to oil pipe coupling field, including the coupling, the first stand pipe of middle part fixedly connected with of coupling inner wall, the fixed pipe of one end fixedly connected with of first stand pipe, the middle part of fixed pipe is rotated through sealed bearing and is connected with the transmission shaft, and the transmission shaft runs through and extends to the one end of fixed pipe, the fixed surface of transmission shaft is connected with the regulating plate, and the surface of regulating plate rotates with the inner wall of fixed pipe to be connected. The utility model discloses a rotate the drive outer lane for the drive outer lane drives the drive inner circle through clamping ring and driving ring and rotates, makes the drive inner circle drive gear revolve, thereby makes the gear pass through the transmission shaft and drives the regulating plate and rotate, and the diameter of regulating plate equals with the diameter of transmission shaft, makes when the regulating plate rotates at the inner wall of transmission shaft, adjusts the volume that the oil passes through the transmission shaft, thereby realizes the purpose of the inside oil pressure of regulating oil pipe.

Description

Adjustable pressure coupling

Technical Field

The utility model relates to an oil pipe coupling technical field, concretely relates to adjustable pressure coupling.

Background

With the rapid increase of the world demand for fossil energy and the annual reduction of the petroleum exploitation amount, the current petroleum exploitation field develops gradually towards the exploitation direction of deep wells, ultra-deep wells, high-pressure oil and gas wells, heavy oil thermal recovery wells, directional wells and the like, thereby providing increasingly strict technical requirements for the sealing of petroleum pipes and pipe joints.

The tubing coupling is one kind of oil well drilling tool and is used mainly in connecting oil pipe. The tubing coupling mainly solves the problem that the existing coupling is easily tired and broken due to stress concentration.

However, in actual use, the conventional coupling does not have a function of adjusting oil pressure inside the oil pipe.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides an adjustable pressure coupling to solve among the prior art because can comparatively single and the problem that does not possess the inside oil pressure function of regulating oil pipe that leads to.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

an adjustable pressure coupling comprises a coupling, wherein a first guide pipe is fixedly connected to the middle of the inner wall of the coupling, a fixed pipe is fixedly connected to one end of the first guide pipe, a transmission shaft is rotatably connected to the middle of the fixed pipe through a sealing bearing, the transmission shaft penetrates through and extends to one end of the fixed pipe, an adjusting plate is fixedly connected to the surface of the transmission shaft, the surface of the adjusting plate is rotatably connected with the inner wall of the fixed pipe, a gear is fixedly connected to one end, penetrating through the fixed pipe, of the transmission shaft, and a driving assembly is arranged on the surface of the gear;

the drive assembly comprises a drive inner ring, one end of the drive inner ring is movably connected with the surface of the gear, one end of the drive inner ring, far away from the gear, is fixedly connected with a drive ring, the outer surface of the drive ring is fixedly connected with a connecting ring, the connecting ring penetrates through and extends to the outer end of the coupling, and the outer surface of the connecting ring is fixedly connected with a drive outer ring.

Further, transmission circle one end is kept away from to first stand pipe is the flaring formula structure, and fixed pipe fixed connection keeps away from the one end of flaring formula structure at first stand pipe, the one end that first stand pipe was kept away from to the transmission circle is the flaring formula structure.

Further, the internal diameter of fixed pipe and the minimum internal diameter of first stand pipe are equal, the regulating plate is circular structure, and the diameter of regulating plate equals with the diameter of transmission shaft.

Furthermore, a tooth groove is formed in the surface of one end, close to the gear, of the driving inner ring, and the inner wall of the tooth groove of the driving inner ring is meshed with the surface of the gear.

Furthermore, a positioning groove is formed in the position, corresponding to the connecting ring, of the coupling, a positioning block is fixedly connected to the surface, corresponding to the positioning groove, of the connecting ring, a rubber pad is fixedly connected to the surface of the positioning block, and the surface of the rubber pad is connected with the inner wall of the positioning groove in a sliding mode.

Furthermore, the number of the positioning blocks is two, and the two positioning blocks are symmetrical by taking the vertical axis of the middle point of the connecting ring as a symmetry axis.

Further, the fixed surface of coupling is connected with the sealing washer, the seal groove has been seted up to the inside wall of drive ring, the inner wall fixedly connected with of seal groove is sealed fills up, and the top sliding connection of the bottom of sealed pad and sealing washer.

Furthermore, the two ends of the inner side wall of the coupling corresponding to the connecting ring are fixedly connected with rubber rings, the rubber rings are fixedly connected to the outer surface of the transmission ring, and the surface of each rubber ring is movably attached to the inner side surface of the coupling.

The utility model discloses a technological effect and advantage:

through rotating the drive outer lane, make the drive outer lane drive the drive inner circle through coupling ring and driving ring and rotate, make the drive inner circle drive gear revolve, thereby make the gear pass through the transmission shaft and drive the regulating plate and rotate, the diameter of regulating plate equals with the diameter of transmission shaft, make when the regulating plate rotates at the inner wall of transmission shaft, adjust the volume that the oil passes through the transmission shaft, thereby realize the purpose of the inside oil pressure of regulating oil pipe, compare with prior art, possess the purpose of the inside oil pressure of regulating oil pipe.

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 description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged view of a portion a of fig. 1 according to the present invention.

Fig. 3 is a side view of the fixing tube structure of the present invention.

Fig. 4 is a partial front sectional view of the driving assembly structure of the present invention.

Fig. 5 is a schematic view of the structure of the driving inner ring of the present invention.

The reference signs are: 1. a coupling; 2. a first guide tube; 3. a fixed tube; 4. a drive shaft; 5. an adjusting plate; 6. a gear; 7. a drive assembly; 71. driving the inner ring; 72. a drive ring; 73. a connecting ring; 74. driving the outer ring; 8. positioning a groove; 9. positioning blocks; 10. a rubber pad; 11. a seal ring; 12. a sealing groove; 13. a gasket; 14. a rubber ring.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.

As shown in fig. 1-5, the utility model provides an adjustable pressure coupling, including a coupling 1, the middle part of the inner wall of the coupling 1 is fixedly connected with a first guide pipe 2, one end of the first guide pipe 2 is fixedly connected with a fixed pipe 3, the middle part of the fixed pipe 3 is rotatably connected with a transmission shaft 4 through a sealed bearing, and the transmission shaft 4 runs through and extends to one end of the fixed pipe 3, the surface of the transmission shaft 4 is fixedly connected with an adjusting plate 5, and the surface of the adjusting plate 5 is rotatably connected with the inner wall of the fixed pipe 3, one end of the transmission shaft 4 running through the fixed pipe 3 is fixedly connected with a gear 6, and the surface of the gear 6 is provided with a driving component 7;

the driving assembly 7 comprises a driving inner ring 71, one end of the driving inner ring 71 is movably connected with the surface of the gear 6, one end, far away from the gear 6, of the driving inner ring 71 is fixedly connected with a transmission ring 72, the outer surface of the transmission ring 72 is fixedly connected with a connecting ring 73, the connecting ring 73 penetrates through and extends to the outer end of the coupling 1, and the outer surface of the connecting ring 73 is fixedly connected with a driving outer ring 74;

the end, far away from the transmission ring 72, of the first guide pipe 2 is of a flared structure, the fixed pipe 3 is fixedly connected to the end, far away from the flared structure, of the first guide pipe 2, and the end, far away from the first guide pipe 2, of the transmission ring 72 is of the flared structure, so that oil is guided;

the inner diameter of the fixed pipe 3 is equal to the minimum inner diameter of the first guide pipe 2, the adjusting plate 5 is of a circular structure, and the diameter of the adjusting plate 5 is equal to that of the transmission shaft 4, so that when the adjusting plate 5 rotates on the inner wall of the transmission shaft 4, the amount of oil passing through the transmission shaft 4 can be adjusted, and the purpose of adjusting the oil pressure in the oil pipe is achieved;

the surface of one end of the driving inner ring 71 close to the gear 6 is provided with a tooth groove, and the inner wall of the tooth groove of the driving inner ring 71 is meshed with the surface of the gear 6, so that when the driving inner ring 71 rotates, the gear 6 is driven to rotate by taking the circle center of the transmission shaft 4 as a rotation center;

a positioning groove 8 is formed in the coupling 1 corresponding to the position of the connecting ring 73, a positioning block 9 is fixedly connected to the surface of the connecting ring 73 corresponding to the position of the positioning groove 8, a rubber pad 10 is fixedly connected to the surface of the positioning block 9, and the surface of the rubber pad 10 is in sliding connection with the inner wall of the positioning groove 8;

the number of the positioning blocks 9 is two, the two positioning blocks 9 are symmetrical by taking a vertical axis at the midpoint of the connecting ring 73 as a symmetry axis, the two ends of the coupling 1 can be positioned by matching the positioning blocks 9 with the rubber pads 10 and the positioning grooves 8, so that the middle part of the coupling 1 can be prevented from being broken under the condition that the connecting ring 73 rotates in the middle part of the coupling 1, and the rubber pads 10 play a role in sealing when the transmission ring 72 and the coupling 1 rotate mutually;

the surface of the coupling 1 is fixedly connected with a sealing ring 11, the inner side wall of the transmission ring 72 is provided with a sealing groove 12, the inner wall of the sealing groove 12 is fixedly connected with a sealing gasket 13, and the bottom of the sealing gasket 13 is in sliding connection with the top of the sealing ring 11, so that the sealing groove 12 is matched with the sealing gasket 13 and the sealing ring 11 to play a role in sealing the joint of the driving outer ring 74 and the coupling 1;

the equal fixedly connected with rubber circle 14 in both ends of the corresponding coupling 1 inside wall position of coupling ring 73, and rubber circle 14 fixed connection is at the surface of drive ring 72, the surface of rubber circle 14 and the medial surface activity laminating of coupling 1 for make can play sealed effect in the junction of drive ring 72 and coupling 1 through setting up rubber circle 14.

The implementation mode is specifically as follows: when the coupling is used, the outer ring 74 is driven by rotation, so that the outer ring 74 and the coupling 1 rotate relatively, the outer ring 74 drives the connecting ring 73 to rotate, the connecting ring 73 drives the transmission ring 72 to rotate, the transmission ring 72 drives the inner ring 71 to rotate, the surface of one end, close to the gear 6, of the inner ring 71 is provided with a tooth socket, the inner wall of the tooth socket of the inner ring 71 is meshed with the surface of the gear 6, when the inner ring 71 is driven to rotate, the gear 6 drives the adjusting plate 5 to rotate on the inner wall of the fixed pipe 3 through the transmission shaft 4, the diameter of the adjusting plate 5 is equal to that of the transmission shaft 4, when the adjusting plate 5 rotates on the inner wall of the transmission shaft 4, the amount of oil passing through the transmission shaft 4 can be adjusted, the purpose of adjusting the oil pressure in the oil pipe is achieved, and the positioning blocks 9 are matched with the rubber pads, the middle part fracture that makes to realize coupling ring 73 under coupling 1 middle part pivoted circumstances can prevent coupling 1, and through rubber pad 10, make when drive ring 72 and coupling 1 rotate each other, play sealed effect at coupling ring 73 and coupling 1 junction, can play sealed effect at the junction of drive outer lane 74 and coupling 1 through seal groove 12 cooperation sealed pad 13 and sealing washer 11, and cooperation rubber circle 14 makes can play sealed effect at the junction of drive ring 72 and coupling 1, thereby make the device leakproofness better, do not influence coupling 1's normal use, this embodiment has specifically solved the interior oil pressure function problem of regulation oil pipe that does not possess that exists among the prior art.

The utility model discloses the theory of operation:

referring to the attached drawings 1-5 of the specification, the outer driving ring 74 is rotated, so that the outer driving ring 74 drives the inner driving ring 71 to rotate through the connecting ring 73 and the transmission ring 72, the inner driving ring 71 drives the gear 6 to rotate, the gear 6 drives the adjusting plate 5 to rotate through the transmission shaft 4, the diameter of the adjusting plate 5 is equal to that of the transmission shaft 4, when the adjusting plate 5 rotates on the inner wall of the transmission shaft 4, the oil quantity passing through the transmission shaft 4 is adjusted, and the purpose of adjusting the oil pressure in the oil pipe is achieved.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides an adjustable pressure coupling, includes coupling (1), its characterized in that: the middle part of the inner wall of the coupling (1) is fixedly connected with a first guide pipe (2), one end of the first guide pipe (2) is fixedly connected with a fixed pipe (3), the middle part of the fixed pipe (3) is rotatably connected with a transmission shaft (4) through a sealing bearing, the transmission shaft (4) penetrates through and extends to one end of the fixed pipe (3), the surface of the transmission shaft (4) is fixedly connected with an adjusting plate (5), the surface of the adjusting plate (5) is rotatably connected with the inner wall of the fixed pipe (3), one end of the transmission shaft (4) penetrating through the fixed pipe (3) is fixedly connected with a gear (6), and the surface of the gear (6) is provided with a driving assembly (7);

drive assembly (7) are including drive inner circle (71), and the surface swing joint of the one end of drive inner circle (71) and gear (6), the one end fixedly connected with transmission circle (72) of gear (6) are kept away from in drive inner circle (71), the external surface fixedly connected with coupling ring (73) of transmission circle (72), coupling ring (73) run through and extend to the outer end of coupling (1), the external surface fixedly connected with drive outer lane (74) of coupling ring (73).

2. The adjustable pressure coupling of claim 1, wherein: transmission circle (72) one end is kept away from in first stand pipe (2) is the flaring formula structure, and fixed tube (3) fixed connection is in the one end of first stand pipe (2) keeping away from the flaring formula structure, the one end that first stand pipe (2) were kept away from in transmission circle (72) is the flaring formula structure.

3. The adjustable pressure coupling of claim 1, wherein: the internal diameter of fixed pipe (3) equals with the minimum internal diameter of first stand pipe (2), regulating plate (5) are circular structure, and the diameter of regulating plate (5) equals with the diameter of transmission shaft (4).

4. The adjustable pressure coupling of claim 1, wherein: and a tooth groove is formed in the surface of one end, close to the gear (6), of the driving inner ring (71), and the inner wall of the tooth groove of the driving inner ring (71) is meshed with the surface of the gear (6).

5. The adjustable pressure coupling of claim 1, wherein: constant head tank (8) have been seted up to the inside of coupling (1) corresponding coupling ring (73) position, the fixed surface of the corresponding constant head tank (8) position of coupling ring (73) is connected with locating piece (9), the fixed surface of locating piece (9) is connected with rubber pad (10), and the surface of rubber pad (10) and the inner wall sliding connection of constant head tank (8).

6. The adjustable pressure coupling of claim 5, wherein: the number of the positioning blocks (9) is two, and the two positioning blocks (9) are symmetrical by taking the vertical axis of the middle point of the connecting ring (73) as a symmetry axis.

7. The adjustable pressure coupling of claim 1, wherein: the fixed surface of coupling (1) is connected with sealing washer (11), seal groove (12) have been seted up to the inside wall of drive ring (72), the sealed pad (13) of inner wall fixedly connected with of seal groove (12), and the top sliding connection of the bottom of sealed pad (13) and sealing washer (11).

8. The adjustable pressure coupling of claim 1, wherein: the equal fixedly connected with rubber circle (14) in both ends that connecting ring (73) corresponds coupling (1) inside wall position, and rubber circle (14) fixed connection is at the surface of drive ring (72), the surface of rubber circle (14) and the medial surface activity laminating of coupling (1).