CN213776690U

CN213776690U - Low temperature resistant pipe

Info

Publication number: CN213776690U
Application number: CN202022693397.0U
Authority: CN
Inventors: 叶朝阳; 贾文忠
Original assignee: Zhejiang Weipai Management Co ltd
Current assignee: Zhejiang Weipai Management Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-23
Anticipated expiration: 2030-11-19

Abstract

The application relates to a low-temperature resistant pipe, which comprises two coaxially arranged first pipes, wherein the opposite ends of the two first pipes are respectively provided with a first connecting piece for quickly connecting the two first pipes into a whole, each first connecting piece comprises a second pipe coaxially arranged at the end part of the first pipe, a plurality of balls arranged on the outer wall of one end, close to the first pipe, of the second pipe, and a driving piece arranged on the second pipe and used for driving the plurality of balls to abut against the outer wall of the first pipe, a first ring groove is arranged on the end surface of one end of the second pipe connected with the first pipe, one end of the first pipe connected with the second pipe is inserted in the inner cavity of the first ring groove, a plurality of grooves are arranged on the outer wall of the second pipe at uniform intervals and communicated with the inner cavity of the first ring groove, the ball is embedded in the inner cavity of the groove in a sliding mode, and a second connecting piece used for improving the connection sealing performance between the two second pipes is arranged between the two second pipes. This application has easy maintenance's effect.

Description

Low temperature resistant pipe

Technical Field

The application relates to the technical field of pipelines, in particular to a low-temperature resistant pipe.

Background

With the development of society, low temperature resistant pipelines are needed in more and more fields for transporting low-temperature fluids, such as long-distance transportation of cooling liquid for industrial equipment, northern water pipes with lower temperature, and the like.

The existing low-temperature resistant pipe is inevitably damaged in the using process, so that the pipeline needs to be overhauled regularly in the using process, maintenance personnel need to cut off the damaged part after discovering the damaged pipeline, a new pipeline is connected between the pipeline and the damaged pipe, and the pipeline is repaired by adopting a hot melting mode in the process.

In view of the above-mentioned related art, the inventor believes that the connector of the hot melt device is heated up due to the connection of the external circuit in the hot melt mode, but in some places without the plug board, the hot melt device is difficult to use because the connector needs to be used in time after being heated up, otherwise the temperature of the connector is reduced, and the connection of the damaged part of the pipeline is inconvenient in the maintenance process.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the maintenance personal connecting tube damage department, promote the convenience that the pipeline was connected, this application provides a low temperature resistant pipe.

The application provides one, adopt following technical scheme:

a low-temperature resistant pipe comprises two first pipes which are coaxially arranged, wherein the opposite ends of the two first pipes are respectively provided with a first connecting piece which is used for quickly connecting the two first pipes into a whole, each first connecting piece comprises a second pipe which is coaxially arranged at the end part of each first pipe, a plurality of balls which are arranged on the outer wall of one end, close to the first pipes, of each second pipe, a driving piece which is arranged on each second pipe and is used for driving the plurality of balls to abut against the outer wall of each first pipe, a first ring groove is arranged on the end surface of one end of the second pipe connected with the first pipe, one end of the first pipe connected with the second pipe is inserted in the inner cavity of the first ring groove, a plurality of grooves are arranged on the outer wall of the second pipe at uniform intervals and communicated with the inner cavity of the first ring groove, the ball is embedded in the inner cavity of the groove in a sliding mode, and a second connecting piece used for improving the connection sealing performance between the two second pipes is arranged between the two second pipes.

Through adopting above-mentioned technical scheme, the outer wall when first pipe appears the damage, maintainer overhauls the in-process and cuts damaged department, thereby make first pipe divide into two and become two sections, with the end of tailorring of first pipe insert the inner chamber of first annular, through the driving piece, make a plurality of ball slide towards the direction that is close to first tub of outer wall in the recess simultaneously, until first pipe is pressed from both sides tightly by a plurality of ball, then pass through the second connecting piece with two second pipes, make two second pipes link into an organic whole, in the whole maintenance process, need not use the hot melt ware to maintain completely, it is convenient to maintain the pipeline.

Optionally, the driving member includes a third tube coaxially disposed on the outer wall of the second tube, and a fourth tube coaxially fixed on the outer wall of the third tube, one end of the third tube is screwed to the outer wall of the second tube, and the other end of the third tube abuts against the outer wall of the ball.

Through adopting above-mentioned technical scheme, when fixing first pipe in first annular, rotate the fourth pipe for the fourth pipe rotates with the third pipe synchronous, thereby slides along the axial of second pipe at the third pipe, and the third pipe is at the in-process that slides, makes the third pipe butt the ball towards the direction that is close to first tub of outer wall and slides, thereby realizes fixing first pipe on the second pipe.

Optionally, an inner edge of one end, facing the ball, of the third tube is provided with a first inner chamfer, and an inclined surface of the first inner chamfer abuts against an outer wall of the ball.

Through adopting above-mentioned technical scheme, the inclination of first interior chamfer is forty-five degrees, and first interior chamfer has promoted the stability of third pipe butt ball.

Optionally, a second annular groove is formed in the outer wall of one end, extending into the first annular groove, of the first pipe, and the ball abuts against the inner wall of the second annular groove.

Through adopting above-mentioned technical scheme, the cross section of second annular is semicircular in shape, and the diameter of second annular cross section equals the diameter of ball, through seting up the second annular for first pipe is difficult to break away from first annular more, has promoted the stability of being connected between first pipe and the second pipe.

Optionally, a third annular groove is formed in the side wall, attached to the inner wall of the first pipe, of the first annular groove, and a sealing rubber ring is embedded in an inner cavity of the third annular groove.

Through adopting above-mentioned technical scheme, the material of sealing rubber ring is silica gel, and sealing rubber ring has promoted the leakproofness between first pipe and the second pipe for liquid is difficult to more flow out outside the first pipe from the inner chamber of first annular.

Optionally, the second connecting piece includes that the fifth pipe of coaxial fixation on one of them second pipe outer wall, the sixth pipe of coaxial fixation on another second pipe outer wall, fifth pipe and sixth pipe all are located the second pipe and keep away from the one end of first pipe, the fourth annular has been seted up to the one end of fifth pipe orientation sixth pipe, the same screw thread of spiral direction has all been seted up on the both sides inner wall of fourth annular, the one end threaded connection of sixth pipe orientation fifth pipe is in the fourth annular.

Through adopting above-mentioned technical scheme, set up the screw thread of the same direction of rotation on the both sides inner wall in fourth ring groove, promoted the stability of being connected between fifth pipe and the sixth pipe on the one hand for be difficult to break away from between fifth pipe and the sixth pipe, on the other hand has strengthened the leakproofness between fifth pipe and the sixth pipe, makes liquid difficult to flow from the gap department of laminating between fifth pipe and the sixth pipe.

Optionally, a second inner chamfer is formed on the inner edge of one end of the second pipe, which is connected with the first pipe.

Through adopting above-mentioned technical scheme, the inclination of chamfer is forty-five degrees in the second, has reduced the second pipe end and has faced the hindrance effect in liquid, when liquid flows through the second pipe from first pipe, has reduced the impact effect of liquid to the second pipe, has ensured the stability of being connected between first pipe and the second pipe.

Optionally, a plurality of protrusions are uniformly fixed on the outer wall of the fourth pipe at intervals, and the cross section of each protrusion is arc-shaped.

Through adopting above-mentioned technical scheme, bellied material is rubber, and the arch has increased the frictional force between maintainer palm and the fourth pipe, and the maintainer of being convenient for more rotates the fourth pipe.

The application comprises at least one of the following beneficial technical effects:

1. in the whole maintenance process, the hot melting device is not needed to be used for maintenance, and the pipeline is convenient to maintain;

2. by arranging the second ring groove, the first pipe is more difficult to separate from the first ring groove, and the connection stability between the first pipe and the second pipe is improved; by arranging the sealing rubber ring, the sealing rubber ring improves the sealing property between the first pipe and the second pipe;

3. through seting up the interior chamfer of second, reduced the second pipe end and faced the hindrance effect in liquid, when liquid flows through the second pipe from first pipe, reduced the impact effect of liquid to the second pipe, ensured the stability of being connected between first pipe and the second pipe.

Drawings

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

Fig. 2 is a sectional view of the entire structure of the first connecting member in the present embodiment.

Fig. 3 is a schematic view of the overall structure of the second connecting member in the present embodiment.

Description of reference numerals: 1. a first tube; 2. a first connecting member; 3. a second tube; 4. a ball bearing; 5. a drive member; 6. a first ring groove; 7. a groove; 8. a second connecting member; 9. a third tube; 10. a fourth tube; 11. a first inner chamfer; 12. a second ring groove; 13. a third ring groove; 14. sealing the rubber ring; 15. a fifth pipe; 16. a sixth tube; 17. a fourth ring groove; 18. a second inner chamfer; 19. and (4) protruding.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a low temperature resistant pipe.

Referring to fig. 1, a low temperature resistant pipe, includes two first pipes 1, and two first pipes 1 are coaxial setting, all are provided with on the back of the body terminal surface of two first pipes 1 to be used for connecting into an organic whole two first pipes 1 fast first connecting piece 2.

Referring to fig. 2, first connecting piece 2 includes second pipe 3, ball 4 and the setting is used for driving about driving piece 5 of a plurality of ball 4 butt on first pipe 1 outer wall on second pipe 3, first annular 6 has been seted up on the terminal surface of second pipe 3 towards first pipe 1, first pipe 1 inlays to be established in the inner chamber of first annular 6 towards the one end of second pipe 3, the cross section width of first annular 6 equals the thickness of first pipe 1, a plurality of recess 7 have been seted up around its circumference interval is even on the one end outer wall of first pipe 1 is connected to second pipe 3, recess 7 communicates the inner wall of first annular 6, ball 4 slides to inlay and establishes in the inner chamber of recess 7.

Referring to fig. 2, driving piece 5 includes third pipe 9 and fourth pipe 10, the coaxial setting of third pipe 9 is on the outer wall of second pipe 3, 9 one end threaded connection of third pipe is on the outer wall of second pipe 3, first interior chamfer 11 has been seted up on the other end inward flange of third pipe 9, the inclined plane butt of first interior chamfer 11 is on the outer wall of ball 4, thereby the stability of third pipe 9 butt ball 4 has been promoted, fourth pipe 10 is coaxial to be fixed on the outer wall of third pipe 9, a plurality of ball 4 all is located the inner chamber of fourth pipe 10, even a plurality of arch 19 that is fixed with in interval on the outer wall of fourth pipe 10, arch 19 is the rubber material, arch 19's transversal semicircular in shape, arch 19 has increased the frictional force between installer palm and fourth pipe 10, the installer of being convenient for more rotates fourth pipe 10.

Referring to fig. 2, in the process of fixing the first pipe 1 and the second pipe 3, the broken end of the first pipe 1 is inserted into the inner cavity of the first ring groove 6 in advance, the outer wall of one end of the first pipe 1, which is positioned in the first ring groove 6, is provided with a second ring groove 12, the cross section of the second ring groove 12 is arc-shaped, the radius of the cross section of the second ring groove 12 is equal to the radius of the ball 4, so that the fourth pipe 10 is rotated, the third pipe 9 is rotated together, under the condition that the third pipe 9 is in threaded connection with the second pipe 3, one end of the third pipe 9, which is provided with a first inner chamfer 11, is abutted against the ball 4 and embedded in the inner cavity of the second ring groove 12, so that the first pipe 1 and the second pipe 3 are more difficult to separate from each other, the side wall of the first ring groove 6, which faces the inner wall of the first pipe 1, is provided with a third ring groove 13, the cross section of the third ring groove 13 is rectangular, and a sealing rubber ring 14 made of silica gel is embedded in the inner cavity of the third ring groove 13, thereby improving the sealability between the first ring groove 6 and the first pipe 1.

Referring to fig. 2, the second inner chamfer 18 is formed on the inner edge of one end of the second pipe 3, which is connected with the first pipe 1, the inclined surface of the second inner chamfer 18 slows down the obstruction of liquid in the first pipe 1 on one hand, so that the liquid can flow into the other first pipe 1 from one of the first pipes 1 more conveniently, and on the other hand, the impact of the liquid on the end part of the second pipe 3 is slowed down, and the stability between the first pipe 1 and the second pipe 3 is improved.

Referring to fig. 3, a second connecting member 8 used for enhancing the connection sealing performance between the two second pipes 3 is further arranged between the two second pipes 3, the second connecting member 8 includes a fifth pipe 15 and a sixth pipe 16, the thickness of the fifth pipe 15 is greater than that of the sixth pipe 16, the fifth pipe 15 and the sixth pipe 16 are both arranged at one end of the second pipe 3 far away from the first pipe 1, the fifth pipe 15 is fixed on one of the second pipes 3, the sixth pipe 16 is fixed on the other one of the second pipes 3, a fourth groove 17 is formed in the end face of the fifth pipe 15 close to the sixth pipe 16, internal threads with the same spiral direction are formed in the inner walls of the two sides of the fourth groove 17, one end of the sixth pipe 16 facing the fifth pipe 15 is in the inner cavity of the fourth groove 17 in a threaded manner, and external threads matched with the internal threads are formed in the inner and outer walls of the sixth pipe 16.

The implementation principle of the low temperature resistant pipe in the embodiment of the application is as follows: when a maintainer finds that a damaged part exists on the outer wall of the first pipe 1, a scissor is used in advance to cut off the damaged part, so that the second pipe 3 is installed at one cutting end of the first pipe 1, the fourth pipe 10 is rotated, the third pipe 9 and the fourth pipe 10 are rotated together, the second pipe 3 is fixed on the first pipe 1, the length of the sixth pipe 16 extending into the fourth groove 17 is controlled according to the cutting length, the distance between the opposite ends of the two second pipes 3 is larger than the cutting length, and then the other cutting end of the other second pipe 3 and the other cutting end of the first pipe 1 are connected, so that the repair of the first pipe 1 is realized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A low temperature resistant pipe, characterized in that: comprises two first pipes (1) which are coaxially arranged, wherein opposite ends of the two first pipes (1) are respectively provided with a first connecting piece (2) which is used for quickly connecting the two first pipes (1) into a whole, the first connecting pieces (2) comprise second pipes (3) which are coaxially arranged on the end parts of the first pipes (1), a plurality of balls (4) which are arranged on the second pipes (3) and are close to the outer wall of one end of each first pipe (1), and driving pieces (5) which are arranged on the second pipes (3) and are used for driving the plurality of balls (4) to be tightly abutted against the outer wall of the first pipes (1), a first annular groove (6) is formed on the end surface of one end, connected with the first pipes (1), of each first pipe (1) and each second pipe (3) are inserted into the inner cavity of the corresponding first annular groove (6), a plurality of grooves (7) are uniformly formed on the outer wall of each second pipe (3) at intervals, recess (7) intercommunication first annular (6) inner chamber, ball (4) slip inlays and establishes in the inner chamber of recess (7), two be provided with between second pipe (3) and be used for promoting second connecting piece (8) of connection leakproofness between two second pipes (3).

2. A cryostraw as defined in claim 1, wherein: the driving piece (5) comprises a third pipe (9) coaxially arranged on the outer wall of the second pipe (3) and a fourth pipe (10) coaxially fixed on the outer wall of the third pipe (9), one end of the third pipe (9) is in threaded connection with the outer wall of the second pipe (3), and the other end of the third pipe (9) is abutted to the outer wall of the ball (4).

3. A cryostraw as defined in claim 2, wherein: the inner edge of one end, facing the ball (4), of the third pipe (9) is provided with a first inner chamfer (11), and the inclined surface of the first inner chamfer (11) abuts against the outer wall of the ball (4).

4. A cryostraw as defined in claim 1, wherein: a second annular groove (12) is formed in the outer wall of one end, extending into the first annular groove (6), of the first pipe (1), and the ball (4) abuts against the inner wall of the second annular groove (12).

5. A cryostraw as defined in claim 1, wherein: third annular (13) have been seted up on the lateral wall of first pipe (1) inner wall of first annular (6) laminating, the embedded sealing rubber ring (14) that is equipped with of inner chamber of third annular (13).

6. A cryostraw as defined in claim 1, wherein: second connecting piece (8) are including coaxial fifth pipe (15) of fixing on one of them second pipe (3) outer wall, coaxial sixth pipe (16) of fixing on another second pipe (3) outer wall, fifth pipe (15) and sixth pipe (16) all are located second pipe (3) and keep away from the one end of first pipe (1), fourth annular (17) have been seted up towards the one end of sixth pipe (16) in fifth pipe (15), the same screw thread of spiral direction has all been seted up on the both sides inner wall of fourth annular (17), sixth pipe (16) are in fourth annular (17) towards the one end threaded connection of fifth pipe (15).

7. A cryostraw as defined in claim 1, wherein: and a second inner chamfer (18) is formed on the inner edge of one end of the second pipe (3) connected with the first pipe (1).

8. A cryostraw as defined in claim 2, wherein: a plurality of bulges (19) are uniformly fixed on the outer wall of the fourth pipe (10) at intervals, and the cross sections of the bulges (19) are arc-shaped.