CN217841555U

CN217841555U - Anti-corrosion and anti-drop tubing coupling

Info

Publication number: CN217841555U
Application number: CN202221913144.2U
Authority: CN
Inventors: 沈思羽; 沈义钦; 吴泽明; 吴风军; 沈中波
Original assignee: Jiangsu Lichang Petroleum Machinery Co ltd
Current assignee: Jiangsu Lichang Petroleum Machinery Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-11-18
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses an anticorrosive anti-drop type tubing coupling, which belongs to the technical field of pipeline couplings, and comprises a coupling main body, wherein threaded rings are arranged on the surfaces of two ends of the coupling main body, the two sides of the coupling main body are provided with the tubing main body, a sleeve is arranged between the tubing main body and the coupling main body, and fixed components are arranged at the upper end and the lower end inside the sleeve; the utility model discloses set up the operating module, operation branch is flexible in the operating sleeve pole, thereby both cooperations form the action bars can make the longer telescopic rotation of making things convenient for of moment, and the structure is comparatively simple, and operation branch can stretch out under the elasticity of powerful spring automatically, operates more simply.

Description

Anti-corrosion and anti-drop tubing coupling

Technical Field

The utility model belongs to the technical field of the pipeline coupling, concretely relates to anticorrosive anti-drop type oil pipe coupling.

Background

The tubing coupling is one kind of oil well drilling tool, is mainly used for connecting tubing and mainly solves the problem that the existing coupling is easy to be exhausted and broken due to stress concentration. The end of the oil pipe is connected with the inner wall of the coupling body in a tapered thread mode, and the end of the coupling body is connected with the oil pipe in a flat thread mode with the same thread pitch. The connecting device has the characteristic of relieving stress concentration at the root part of the external thread of the single-cone threaded connecting oil pipe, is not easy to generate fatigue fracture, and has good connecting effect.

Chinese patent application No. 202120716141.9 discloses a double-layer anti-corrosion and anti-drop tubing coupling, the sleeve of the coupling is connected with the main body of the coupling and the main body of the tubing by screw thread, which may not be stable enough for long time use, and meanwhile, the structure of the operating rod used for increasing torque of the original device is more complex.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an anticorrosive anti-drop type tubing coupling has stable in structure, simple structure's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anticorrosive anti-drop type tubing coupling, includes the coupling main part, coupling main part both ends surface is provided with the screw ring, coupling main part both sides are provided with the tubing main part, be provided with the sleeve between tubing main part and the coupling main part, both ends are provided with fixed subassembly, two about the sleeve is inside each other near one side and are provided with two sets of operating assembly.

Preferably, the fixed component comprises a clamping plate, an expansion spring and a sliding rod, wherein the sliding rod is arranged inside the sleeve, the clamping plate is arranged on the surface of the sliding rod and extends to the surface of the oil pipe main body and the surface of the threaded ring, and the expansion spring is arranged on the surface of the sliding rod and is positioned between the clamping plate and the sleeve.

Preferably, the fixing assembly further comprises a sliding groove and a limiting plate, wherein the limiting plate is arranged on the surface of the sliding rod, and the sliding groove is arranged in the clamping plate and corresponds to the limiting plate.

Preferably, the operation subassembly includes spring catch, operation loop bar, pinhole and operation branch, wherein, the sleeve surface is provided with the operation loop bar, inside operation branch that is provided with of operation loop bar, inside spring catch that is provided with of operation branch, inside and the spring catch that corresponds the position with the spring catch of operation loop bar is provided with the pinhole.

Preferably, the spring pin is provided with a ball in the middle of the inner part of one side far away from the operation supporting rod.

Preferably, the operating assembly further comprises a contact plate and a strong spring, wherein the strong spring is arranged in the operating sleeve rod, and the contact plate is arranged on one side, close to the operating support rod, of the strong spring.

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

1. the utility model discloses set up fixed subassembly, the inside cardboard that sets up of sleeve can stretch out and draw back under expanding spring's elasticity, and the cardboard card can be further fixed to oil pipe main part and coupling main part when in the screw thread of oil pipe main part and screw ring, and it is not hard up to appear after avoiding the device to use for a long time.

2. The utility model discloses set up the operating module, operation branch is flexible in the operation loop bar, thereby both cooperations form the action bars and can make the longer telescopic rotation of making things convenient for of moment, and the structure is comparatively simple, and operation branch can stretch out under the elasticity of powerful spring automatically, and the operation is more simple.

Drawings

Fig. 1 is a perspective view of the present invention;

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

FIG. 3 is an enlarged view of the point A of FIG. 2 according to the present invention;

FIG. 4 is a cross-sectional view of the operational assembly of the present invention;

FIG. 5 is an enlarged view of the point B of FIG. 4 according to the present invention;

in the figure: 1. an oil pipe body; 2. an operating component; 21. a contact plate; 22. a strong spring; 23. a spring pin; 24. operating the loop bar; 25. a pin hole; 26. operating the supporting rod; 27. a ball bearing; 3. a collar body; 4. a sleeve; 5. a threaded ring; 6. a fixing assembly; 61. a chute; 62. clamping a plate; 63. a limiting plate; 64. a tension spring; 65. a slide bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

Example 1

Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides an anticorrosive anti-drop type tubing coupling, includes coupling

main part

3, and 3 both ends surfaces of coupling main part are provided with

screw ring

5, and 3 both sides of coupling main part are provided with tubing main part 1, are provided with sleeve 4 between tubing main part 1 and the coupling main part 3, and both ends are provided with fixed subassembly 6 about sleeve 4 is inside, and two sleeves 4 are close to one side mutually and are provided with two sets of operating assembly 2.

Specifically, the fixing component 6 comprises a catch plate 62, a telescopic spring 64 and a slide rod 65, wherein the slide rod 65 is arranged inside the sleeve 4, the catch plate 62 is arranged on the surface of the slide rod 65 and extends to the surface of the oil pipe main body 1 and the threaded ring 5, the telescopic spring 64 is arranged on the surface of the slide rod 65 and is positioned between the catch plate 62 and the sleeve 4,

through adopting above-mentioned technical scheme, cardboard 62 blocks under expanding spring 64's elasticity in the screw thread of oil pipe main part 1 and screw ring 5, further fixes oil pipe main part 1 and coupling main part 3, and it is not hard up to avoid the device to appear after long-time the use.

Specifically, the fixing assembly 6 further comprises a sliding slot 61 and a limiting plate 63, wherein the surface of the sliding rod 65 is provided with the limiting plate 63, the inside of the clamping plate 62 is provided with the sliding slot 61 at a position corresponding to the limiting plate 63,

through adopting above-mentioned technical scheme, when cardboard 62 removed, limiting plate 63 slided in spout 61, had played good spacing effect.

When the device is used, the two sleeves 4 are respectively fixed on the surface of the coupling main body 3 through the threaded rings 5, then the two oil pipe main bodies 1 are respectively inserted into the two sides of the coupling main body 3, then the sleeves 4 are rotated to enable the sleeves 4 to be in threaded connection with the oil pipe main body 1 until the clamping plates 62 are clamped in the threads of the oil pipe main body 1 and the threaded rings 5 under the elasticity of the telescopic springs 64, so that the oil pipe main body 1 and the coupling main body 3 are further fixed, the looseness of the device after long-time use is avoided, when the clamping plates 62 move, the limiting plates 63 slide in the sliding grooves 61, and a good limiting effect is achieved;

example 2

The present embodiment is different from embodiment 1 in that: the operating assembly 2 comprises a spring pin 23, an operating sleeve rod 24, a pin hole 25 and an operating support rod 26, wherein the operating sleeve rod 24 is arranged on the surface of the sleeve 4, the operating support rod 26 is arranged in the operating sleeve rod 24, the spring pin 23 is arranged in the operating support rod 26, the pin hole 25 is arranged in the operating sleeve rod 24 corresponding to the spring pin 23,

by adopting the technical scheme, when the sleeve 4 is rotated, the spring pin 23 is pressed and is taken into the operation sleeve rod 24, the operation support rod 26 moves outwards until the spring pin 23 is clamped into the other pin hole 25, and at the moment, the operation sleeve rod 24 and the operation support rod 26 are matched to form the operation rod, so that the moment is longer, and the sleeve 4 is convenient to rotate.

Specifically, the spring pins 23 are provided with balls 27 in the middle of the inner parts of the sides far away from the operating strut 26,

by adopting the technical scheme, when the spring pin 23 is driven to move by the operation supporting rod 26, the ball 27 rolls in the operation sleeve rod 24, so that friction can be reduced, and the spring pin 23 is prevented from being worn.

Specifically, the operating assembly 2 further comprises a contact plate 21 and a strong spring 22, wherein the strong spring 22 is arranged inside the operating sleeve rod 24, the contact plate 21 is arranged on one side of the strong spring 22 close to the operating support rod 26,

by adopting the technical scheme, the elastic force of the strong spring 22 during resetting can push the operation supporting rod 26 to automatically extend outwards.

When this embodiment uses, when rotating sleeve 4, press spring catch 23, make it take in inside operation loop bar 24, powerful spring 22 resets, promote operation branch 26 and outwards stretch out until spring catch 23 blocks into another pinhole 25, at this moment, operation loop bar 24 forms the action bars with the cooperation of operation branch 26, make the longer rotation that makes things convenient for sleeve 4 of moment, when operation branch 26 drives spring catch 23 and removes, ball 27 rolls in operation loop bar 24, can reduce friction, avoid spring catch 23 to appear wearing and tearing.

The structure and the working principle of the middle oil pipe main body 1 and the coupling main body 3 of the utility model are disclosed in the double-layer anti-corrosion and anti-drop oil pipe coupling disclosed in the Chinese patent application No. 202120716141.9.

The utility model discloses well spring catch 23 is the current technique of disclosing, and the model of chooseing for use is XY1248.

The utility model discloses a theory of operation and use flow: when the utility model is used, the two sleeves 4 are respectively fixed on the surface of the coupling main body 3 through the threaded rings 5, then the two oil pipe main bodies 1 are respectively inserted into the two sides of the coupling main body 3, and then the sleeves 4 are rotated to enable the sleeves 4 to be in threaded connection with the oil pipe main body 1 until the clamping plates 62 are clamped in the threads of the oil pipe main body 1 and the threaded rings 5 under the elasticity of the telescopic springs 64, so that the oil pipe main body 1 and the coupling main body 3 are further fixed, the looseness of the device after long-time use is avoided, when the clamping plates 62 move, the limiting plates 63 slide in the sliding grooves 61, and a good limiting effect is achieved; when the sleeve 4 is rotated, the spring pin 23 is pressed to be taken into the operating sleeve rod 24, the strong spring 22 is reset, the operating support rod 26 is pushed to extend outwards until the spring pin 23 is clamped into the other pin hole 25, at the moment, the operating sleeve rod 24 and the operating support rod 26 are matched to form an operating rod, so that the moment is relatively long, the sleeve 4 is convenient to rotate, when the operating support rod 26 drives the spring pin 23 to move, the ball 27 rolls in the operating sleeve rod 24, friction can be reduced, and abrasion of the spring pin 23 is avoided.

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 an anticorrosive anti-drop type tubing coupling, includes coupling main part (3), its characterized in that: the coupling is characterized in that threaded rings (5) are arranged on the surfaces of two ends of the coupling main body (3), oil pipe main bodies (1) are arranged on two sides of the coupling main body (3), sleeves (4) are arranged between the oil pipe main bodies (1) and the coupling main body (3), fixing assemblies (6) are arranged at the upper end and the lower end of the inner portion of each sleeve (4), and two sets of operating assemblies (2) are arranged on one side, close to each other, of each sleeve (4).

2. The anti-corrosion and anti-drop tubing coupling as claimed in claim 1, wherein: the fixed component (6) comprises a clamping plate (62), a telescopic spring (64) and a sliding rod (65), wherein the sliding rod (65) is arranged inside the sleeve (4), the surface of the sliding rod (65) extends to the surface of the oil pipe main body (1) and the surface of the threaded ring (5) and is provided with the clamping plate (62), and the surface of the sliding rod (65) is provided with the telescopic spring (64) which is positioned between the clamping plate (62) and the sleeve (4).

3. The anti-corrosion and anti-drop tubing coupling as claimed in claim 2, wherein: the fixed assembly (6) further comprises a sliding groove (61) and a limiting plate (63), wherein the limiting plate (63) is arranged on the surface of the sliding rod (65), and the sliding groove (61) is formed in the clamping plate (62) and corresponds to the limiting plate (63).

4. The anti-corrosion and anti-drop tubing coupling as claimed in claim 1, wherein: the operation assembly (2) comprises a spring pin (23), an operation sleeve rod (24), a pin hole (25) and an operation support rod (26), wherein the operation sleeve rod (24) is arranged on the surface of the sleeve (4), the operation support rod (26) is arranged inside the operation sleeve rod (24), the spring pin (23) is arranged inside the operation support rod (26), and the pin hole (25) is arranged inside the operation sleeve rod (24) and corresponds to the spring pin (23).

5. The anti-corrosion and anti-drop tubing coupling as claimed in claim 4, wherein: the spring pins (23) are provided with balls (27) in the middle of the inner part of one side far away from the operation support rod (26).

6. The anti-corrosion and anti-drop tubing coupling as claimed in claim 4, wherein: the operating assembly (2) further comprises a contact plate (21) and a strong spring (22), wherein the strong spring (22) is arranged in the operating sleeve rod (24), and the contact plate (21) is arranged on one side, close to the operating support rod (26), of the strong spring (22).