CN210392101U

CN210392101U - End protective cover of non-magnetic drill collar

Info

Publication number: CN210392101U
Application number: CN201921381288.6U
Authority: CN
Inventors: 郭浩
Original assignee: Jiangyou Haoming Industry Co Ltd
Current assignee: Jiangyou Haoming Industry Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-04-24
Anticipated expiration: 2029-08-23

Abstract

An end protective cover of a non-magnetic drill collar comprises an outer cylinder and an inner cylinder which are sleeved, wherein the top ends of the outer cylinder and the inner cylinder are connected into a whole through a cover plate, the inner cylinder is in a frustum shape, the diameter of an insertion end of the inner cylinder is smaller than that of a tail end, the insertion end of the inner cylinder is connected with a circular baffle, and gaps are formed in the side walls of the outer cylinder and the inner cylinder along the axis; one end face of the outer barrel notch is provided with an outer adjusting hole, the other end face of the outer barrel notch is provided with an outer diameter adjusting belt inserted into the outer adjusting hole, one end face of the inner barrel notch is provided with an inner adjusting hole, and the other end face of the inner barrel is provided with an inner diameter adjusting belt inserted into the inner adjusting hole; the outer wall of the outer barrel is fixed with an adhesive tape with a protective surface capable of being torn, the adhesive tape extends out of the bottom end of the outer barrel, and the adhesive layer faces inwards and covers the notch of the outer barrel. Meanwhile, the inner wall and the outer wall of the drill collar are protected, the inner barrel is in a frustum shape, the inner barrel can be fixed by pressing down forcibly during installation, the operation is convenient, and meanwhile, foreign matters can be prevented from entering the inner hole of the drill collar by the round baffle; the diameters of the inner cylinder and the outer cylinder can be adjusted according to the size of the end of the drill collar, and the applicability is strong.

Description

End protective cover of non-magnetic drill collar

Technical Field

The utility model relates to a drill collar manufacturing technical field, concretely relates to end visor of no magnetism drill collar.

Background

The non-magnetic drill collar is made of low-carbon high-chromium-manganese alloy steel, is refined after strict chemical component proportion and achieves the mechanical property by forging, and has good mechanical properties of low magnetic conductivity and high strength. After the drill collar is machined, products to be delivered from a factory need to be stored, the drill collar can be strongly stacked, lifted and the like in the storage process, however, the end of the finished drill collar is machined to form a threaded structure, the threaded structure is not painted and directly exposed, and the end is likely to be damaged by collision in the carrying process.

The existing protection mode is mainly just to simply adopt plastic wrapping, the end is easy to break or scatter due to impact, and the end cannot be waterproof and rainproof, so that the end needs to be protected more thickly, the end can be effectively prevented from being damaged by impact due to the adoption of the plastic protective cover, and the protective cover can be reused. For drill collars with different sizes, the inner bore diameter and the outer diameter are different, and a protective cover needs to be matched independently, so that the manufacturing cost of the protective cover is increased. Therefore, it is desirable to design a protective cover with adjustable dimensions for protecting various types of drill collars.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an end visor of no magnetic drill collar protects drill collar end department inner wall and outer wall simultaneously, applicable in the drill collar of different inside and outside footpath sizes, and it is convenient to install.

In order to solve the technical problem, the utility model discloses a following scheme:

an end protective cover of a non-magnetic drill collar comprises an outer cylinder and an inner cylinder which are sleeved, wherein the top ends of the outer cylinder and the inner cylinder are connected into a whole through a cover plate, the inner cylinder is in a frustum shape, the diameter of an insertion end of the inner cylinder is smaller than that of a tail end of the inner cylinder, the insertion end of the inner cylinder is connected with a circular baffle, and gaps are formed in the side walls of the outer cylinder and the inner cylinder along the;

an outer adjusting hole is formed in one end face of the outer barrel notch, an outer diameter adjusting belt inserted into the outer adjusting hole is arranged on the other end face of the outer barrel notch, an inner adjusting hole is formed in one end face of the inner barrel notch, and an inner diameter adjusting belt inserted into the inner adjusting hole is arranged on the other end face of the inner barrel; the outer diameter adjusting belt and the inner diameter adjusting belt are provided with barbs, and the outer adjusting holes and the inner adjusting holes are provided with triangular grooves matched with the barbs.

The urceolus outer wall is fixed with the sticky tape that the glue film protective surface can tear, the sticky tape stretches out the urceolus bottom, and the glue film face just covers inwards the breach of urceolus.

Furthermore, the outer wall of the inner barrel is full of barbs.

Furthermore, the side wall of the outer barrel is provided with more than two notches, and each notch is provided with an outer adjusting hole and an outer diameter adjusting belt; the side wall of the inner cylinder is provided with more than two notches, and each notch is provided with an inner adjusting hole and an inner diameter adjusting belt; and adhesive tapes are arranged on the outer wall of the outer barrel at the notches.

Further, the inner wall of the outer barrel is provided with a thread anti-skid surface; the outer barrel is made of hard plastics; the inner cylinder is made of tough waterproof rubber.

The utility model discloses beneficial effect who has:

the inner cylinder and the outer cylinder which are sleeved are adopted to simultaneously protect the inner wall and the outer wall of the drill collar, the inner cylinder is in a frustum shape, the insertion end is provided with a circular baffle, the inner cylinder can be fixed by forcibly pressing down during installation, the operation is convenient, the outer wall of the inner cylinder is tightly pressed with the hole wall of the drill collar, and meanwhile, the circular baffle can prevent foreign matters from entering the inner hole of the drill collar.

The inner cylinder and the outer cylinder are provided with gaps, adjusting belts and adjusting holes are arranged, the diameters of the inner cylinder and the outer cylinder are adjusted according to the size of the end of the drill collar, and the application range of the protective cover is enlarged; barbs are arranged on the adjusting belt and the outer wall of the inner barrel, so that falling off can be further prevented; the outer wall of the outer barrel is provided with an adhesive tape to bond and fix the lower end of the outer barrel and the outer wall of the drill collar, so that the operation is convenient and fast.

Drawings

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

Fig. 2 is a schematic structural view of fig. 1 with a hidden adhesive tape and an outer diameter adjusting tape.

Reference numerals: 1-outer cylinder, 10-outer adjusting hole, 2-inner cylinder, 20-inner adjusting hole, 21-round baffle, 3-outer diameter adjusting belt, 4-inner diameter adjusting belt and 5-adhesive tape.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

Examples

As shown in fig. 1 and fig. 2, the present embodiment provides an end protective cover without a magnetic drill collar, which includes an outer cylinder 1 and an inner cylinder 2, which are sleeved together, and top ends of the outer cylinder 1 and the inner cylinder 2 are connected into a whole through a cover plate, the inner cylinder 2 is frustum-shaped, an insertion end diameter of the inner cylinder is smaller than a tail end diameter, the insertion end is connected with a circular baffle 21, and sidewalls of the outer cylinder 1 and the inner cylinder 2 are both provided with notches along an axis;

an outer adjusting hole 10 is formed in the end face of the gap of the outer cylinder 1, an outer diameter adjusting belt 3 inserted into the outer adjusting hole 10 is arranged on the other end face of the gap of the outer cylinder 1, an inner adjusting hole 20 is formed in the end face of the gap of the inner cylinder 2, and an inner diameter adjusting belt 4 inserted into the inner adjusting hole 20 is arranged on the other end face of the inner cylinder 2; the outer wall of the outer diameter adjusting belt 3 and the outer wall of the inner diameter adjusting belt 4 are provided with barbs, and the outer adjusting holes 10 and the inner adjusting holes 20 are provided with triangular grooves matched with the barbs.

1 outer wall of urceolus is fixed with the sticky tape 5 that the glue film protective surface can tear, sticky tape 5 stretches out 1 bottom of urceolus, and the glue film face just covers inwards the breach of urceolus 1.

The specific implementation process comprises the following steps:

according to the inner diameter and the outer diameter of the drill collar, the adjusting belt is correspondingly inserted into the adjusting hole in advance, the outer diameter adjusting belt 3 is inserted into the outer adjusting hole 10, the diameter of the outer cylinder 1 is slightly larger than the outer diameter of the drill collar, the inner diameter adjusting belt 4 is inserted into the inner adjusting hole 20, and the outer diameter of the inner cylinder 2 is slightly larger than the inner diameter of the drill collar; the protective cover is inserted and sleeved outside the drill collar, the inner cylinder 2 is inserted into an inner hole of the drill collar, and the outer cylinder 1 is sleeved on the outer wall of the drill collar; the inner cylinder 2 is pressed down by force until the inner cylinder can not be pressed, the inner cylinder 2 is conical, so that the inner cylinder is clamped and is not easy to fall off, and the outer wall of the inner cylinder is tightly pressed with the inner hole wall of the drill collar. The insertion length of the outer diameter adjusting belt 3 is adjusted to enable the inner wall of the outer barrel 1 to be tightly pressed with the outer wall of the drill collar, then the protective layer of the adhesive tape 5 is torn, the lower end of the outer barrel 1 is fixedly bonded with the outer wall of the drill collar, and meanwhile the adjusting belt at the notch is also fixedly bonded. When the adhesive tape is removed, the adhesive tape 5 is torn off, the inner barrel 2 is pulled out by means of a tool or force, and the adhesive tape 5 can be replaced for secondary use.

Furthermore, the outer wall of the inner cylinder 2 is fully distributed with barbs, the inner cylinder 2 is inserted into an inner hole of the drill collar along the barbs, the outer wall of the conical inner cylinder 2 is pressed by force to be abutted against the inner diameter of the drill collar, and the barbs can further prevent the inner cylinder 2 from falling off.

Further, the side wall of the outer cylinder 1 is provided with more than two notches, and each notch is provided with an outer adjusting hole 10 and an outer diameter adjusting belt 3; more than two notches are formed in the side wall of the inner barrel 2, and an inner adjusting hole 20 and an inner diameter adjusting belt 4 are arranged at each notch. As shown in the figure, two gaps are arranged, the diameters of the inner cylinder 2 and the outer cylinder 1 are adjusted through the adjusting holes and the adjusting belts, the number of the gaps is increased, adjustment is facilitated on the one hand, the adjusting range can be enlarged on the other hand, and therefore the applicability of the protective cover is enhanced.

Furthermore, the inner wall of the outer barrel 1 is provided with a threaded anti-skid surface, so that the outer barrel can be tightly pressed with the end of the drill collar, and is rough, anti-skid and not easy to fall off. The outer barrel 1 is made of hard plastics, so that the protective end is not damaged, the whole protective cover keeps certain hardness, and the installation is convenient; the inner cylinder 2 is made of tough waterproof rubber, rainwater can be prevented from entering an inner hole of the drill collar, the inner cylinder 2 is easy to deform due to the tough material, and the outer wall of the inner cylinder 2 is pressed with the inner diameter of the drill collar through resilience of the rubber after being pressed into the inner hole of the drill collar.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.

Claims

1. The end protective cover of the non-magnetic drill collar is characterized by comprising an outer cylinder (1) and an inner cylinder (2) which are sleeved, wherein the top ends of the outer cylinder (1) and the inner cylinder (2) are connected into a whole through a cover plate, the inner cylinder (2) is frustum-shaped, the diameter of an insertion end of the inner cylinder is smaller than that of a tail end, the insertion end of the inner cylinder is connected with a circular baffle (21), and gaps are formed in the side walls of the outer cylinder (1) and the inner cylinder (2) along;

an outer adjusting hole (10) is formed in one end face of a gap of the outer cylinder (1), an outer diameter adjusting belt (3) inserted into the outer adjusting hole (10) is arranged on the other end face of the gap of the outer cylinder (1), an inner adjusting hole (20) is formed in one end face of the gap of the inner cylinder (2), and an inner diameter adjusting belt (4) inserted into the inner adjusting hole (20) is arranged on the other end face of the inner cylinder (2);

urceolus (1) outer wall is fixed with sticky tape (5) that the glue film protective surface can tear, sticky tape (5) stretch out urceolus (1) bottom, and the glue film face just covers inwards the breach of urceolus (1).

2. The protective cap for the end of a non-magnetic drill collar as defined in claim 1, wherein the outer wall of the inner barrel (2) is provided with barbs.

3. The end protective cover of the non-magnetic drill collar according to claim 1, wherein the side wall of the outer cylinder (1) is provided with more than two notches, and each notch is provided with an outer adjusting hole (10) and an outer diameter adjusting belt (3); more than two notches are formed in the side wall of the inner barrel (2), and an inner adjusting hole (20) and an inner diameter adjusting belt (4) are arranged at each notch.

4. The end protective cover for a non-magnetic drill collar according to claim 3, characterized in that the outer wall of the outer cylinder (1) is provided with adhesive tape (5) at each gap.

5. The end protective cover of the non-magnetic drill collar as recited in claim 1, wherein barbs are disposed on outer walls of the outer diameter adjusting belt (3) and the inner diameter adjusting belt (4), and triangular grooves matched with the barbs are disposed on the outer adjusting hole (10) and the inner adjusting hole (20).

6. The protective cap for the end of a non-magnetic drill collar as defined in claim 1, wherein the inner wall of the outer cylinder (1) is provided with a thread anti-slip surface.

7. Protective cap for the end of a non-magnetic drill collar according to claim 1, characterized in that the outer cylinder (1) is made of rigid plastic.

8. The protective cap for the end of a non-magnetic drill collar as defined in claim 1, wherein said inner cylinder (2) is made of a tough waterproof rubber.