CN111306403A

CN111306403A - Groove pipe fitting protection device and manufacturing method thereof

Info

Publication number: CN111306403A
Application number: CN202010091673.8A
Authority: CN
Inventors: 景佳琪; 雷强; 牛峰; 徐斌; 郝腾龙; 郭剑飞; 秦昕
Original assignee: China Railway Construction Group Co Ltd; Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd
Current assignee: China Railway Construction Group Co Ltd; Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-06-19

Abstract

The invention relates to the field of pipelines and provides a protection device for a groove pipe fitting. The groove pipe fitting protection device comprises a first protection shell and a second protection shell which are detachably buckled; the first protection shell comprises a first protection cover and a first semicircular pipe, wherein a part of the first semicircular pipe, which is positioned in the first protection cover, is provided with a first shear mark and a third shear mark which are distributed at intervals, and the first shear mark and the third shear mark are used for removing the part, which is positioned between the first semicircular pipe and the first semicircular pipe, of the first semicircular pipe before buckling; the second protective housing comprises a second protective housing and a second semicircular tube, wherein the part, located in the second protective housing, of the second semicircular tube is provided with a second shear mark and a fourth shear mark which are distributed at intervals in the axial direction, and the second shear mark and the fourth shear mark are used for removing the part, located between the second semicircular tube and the second semicircular tube, before buckling. The invention aims to provide a groove pipe fitting protection device with two pipe sleeves having good coaxiality. The invention also provides a manufacturing method of the groove pipe fitting protection device.

Description

Groove pipe fitting protection device and manufacturing method thereof

Technical Field

The invention relates to the field of pipelines, in particular to a groove pipe fitting protection device and a manufacturing method thereof.

Background

In building construction, trench pipe is often used for pipe connections (of fire, water supply, etc. systems). When the pipeline is buried under the ground, the trench pipe is generally subjected to a force due to local settlement of the soil. These forces, which are formed by local settlement of the soil layer, often cause serious negative effects, such as: causing leakage and breakage of the grooved pipe. In addition, the trench pipe buried under the ground is gradually corroded, so that the trench pipe cannot function.

The traditional solution is as follows: and laying a layer of concrete on the soil layer below the groove pipe fitting. However, this method only temporarily solves the problem caused by slight settlement of the soil layer on the upper part of the pipeline. Once the soil layer under the pipeline is settled, the method still cannot effectively protect the groove pipe fitting. Moreover, the traditional solution can not avoid the corrosion of the pipe.

Disclosure of Invention

The invention aims to provide a groove pipe fitting protection device and a manufacturing method thereof, and two pipe sleeves of the groove pipe fitting protection device have good coaxiality.

The groove pipe fitting protection device comprises a first protection shell and a second protection shell which are detachably buckled; the first protection shell comprises a first protection cover and a first semicircular pipe, the first semicircular pipe extends through the first protection cover, a first cut and a third cut are arranged on the part, located in the first protection cover, of the first semicircular pipe, the first cut and the third cut are distributed at intervals in the axial direction, and the first cut and the third cut are used for removing the part, located between the first semicircular pipe and the first protection cover, of the first semicircular pipe before buckling; the second protective shell comprises a second protective cover and a second semicircular tube, the second semicircular tube extends through the second protective cover, a part of the second semicircular tube, which is located in the second protective cover, is provided with a second shear mark and a fourth shear mark, the second shear mark and the fourth shear mark are distributed at intervals in the axial direction, and the second shear mark and the fourth shear mark are used for removing the part, located between the second semicircular tube and the second semicircular tube, of the second semicircular tube before buckling; the first protection cover and the second protection cover are buckled to form a protection cabin, the protection cabin is used for containing and sealing the groove pipe fitting, the two remaining parts of the first semicircular pipe are correspondingly buckled with the two remaining parts of the second semicircular pipe respectively to form a first pipe sleeve and a second pipe sleeve, and the first pipe sleeve and the second pipe sleeve are used for sleeving two pipelines connected by the groove pipe fitting.

According to one embodiment of the invention, the inner diameter of the first socket and the second socket is equal to the inner diameter of the grooved tube.

According to one embodiment of the invention, the first protective shell and the second protective shell are connected by a plurality of clip structures.

According to one embodiment of the invention, the clamp structure comprises a first clamp body and a second clamp body, the first clamp body is connected with the first semicircular pipe, the second clamp body is connected with the second semicircular pipe, and the second clamp body are detachably connected.

According to one embodiment of the invention, the axial length of the first socket and the second socket is greater than the inner diameter of the grooved tube.

According to one embodiment of the present invention, the outer surfaces of the first protective case and the second protective case are provided with an anticorrosive paint layer and a waterproof paint layer.

According to one embodiment of the invention, the inner surfaces of the first protective shell and the second protective shell are provided with a layer of anti-corrosive paint.

The manufacturing method of the groove pipe fitting protection device comprises the following steps: cutting a first cutting groove and a second cutting groove on the outer surface of the circular tube, wherein the first cutting groove and the second cutting groove are axially distributed at intervals; axially bisecting the circular tube into a first semicircular tube and a second semicircular tube, wherein the first cut groove is bisected into a first cut mark and a second cut mark, the second cut groove is bisected into a third cut mark and a fourth cut mark, the first semicircular tube has the first cut mark and the third cut mark, and the second semicircular tube has the second cut mark and the fourth cut mark; manufacturing a first protective cover and a second protective cover which are both provided with cavities, manufacturing a semicircular notch on each of two sides of the first protective cover, and manufacturing a semicircular notch on each of two sides of the second protective cover; welding a first semicircular pipe to the two semicircular notches of the first protective cover to form a first protective cover, wherein the first cut and the third cut are located between the two semicircular notches of the first protective cover; welding a second semicircular tube to the two semicircular notches of the second protective cover to form a second protective cover, wherein the second cut mark and the fourth cut mark are located between the two semicircular notches of the second protective cover; the first protective shell and the second protective shell are provided with a plurality of hoop structures, so that the first protective shell and the second protective shell can be detachably buckled, the first shear mark and the third shear mark are used for removing the part, located between the first semicircular tube and the second semicircular tube, of the first protective shell before buckling, and the second shear mark and the fourth shear mark are used for removing the part, located between the second semicircular tube and the second semicircular tube, of the second protective shell before buckling.

According to one embodiment of the present invention, an anticorrosive coating layer and a waterproof coating layer are provided on the outer surfaces of the first protective case and the second protective case.

According to one embodiment of the present invention, an anticorrosive paint layer is provided on the inner surfaces of the first protective case and the second protective case.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

the first semicircular pipe is integrally and directly connected with the first protective shell, and the second semicircular pipe is integrally and directly connected with the second protective shell. When the first protective shell and the second protective shell need to be buckled, the part, located between the first cutting mark and the second cutting mark, of the first semicircular pipe is taken down, and the part, located between the third cutting mark and the fourth cutting mark, of the second semicircular pipe is taken down, so that the remaining two parts (the two parts still connected to the first protective shell) of the first semicircular pipe keep good coaxiality, and the remaining two parts (the two parts still connected to the second protective shell) of the second semicircular pipe keep good coaxiality. The remaining two parts of the first semicircular pipe are correspondingly buckled with the remaining two parts of the second semicircular pipe to form the first pipe sleeve and the second pipe sleeve, so that the first pipe sleeve and the second pipe sleeve also have good coaxiality. The good coaxiality is beneficial to the connection of the groove pipe fitting protection device and the pipeline and also beneficial to improving the sealing performance of the groove pipe fitting protection device.

Drawings

FIG. 1 is a schematic exploded view of a trench pipe fitting protection device according to an embodiment of the present invention;

FIG. 2 is an assembled view of a trench tubing protector according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a pipe structure in one embodiment of the present invention;

FIG. 4 is a schematic view of a first protective shell in accordance with one embodiment of the present invention;

FIG. 5 is a schematic view of a second protective case in accordance with an embodiment of the present invention;

fig. 6 is a schematic view of a first slot and a second slot in an embodiment of the present invention.

Reference numerals:

10. a trench pipe protection device; 12. a first protective case; 14. a first protective cover; 16. a first semi-circular tube; 161. a first cut mark; 163. a third cut mark; 18. a second protective shell; 20. a second protective cover; 22. a second semi-circular tube; 222. a second cut mark; 224. a fourth cut mark; 24. a protection cabin; 26. a first pipe sleeve; 28. a second pipe sleeve; 30. a clamp structure; 302. a first hoop body; 304. a second band body; 306. and (4) bolts.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

As shown in fig. 1 to 3, the present invention provides a trench pipe protection device 10 including a first protection case 12 and a second protection case 18. The first protective case 12 and the second protective case 18 are detachably engaged. The first protective shell 12 and the second protective shell 18 may be the same size in shape.

As shown in fig. 1-3, in one embodiment of the present invention, the first protective shell 12 includes a first protective cap 14 and a first semi-circular tube 16. The first protection cover 14 is configured as a housing having an opening, for example, the first protection cover 14 is a semi-cylindrical housing (for example, two sides of an arc-shaped plate are respectively connected with a fan-shaped side plate, thereby enclosing a semi-cylindrical housing). The first protection cover 14 is provided with a first semicircular notch at both sides thereof, and the first semicircular notches are used for installing the first semicircular pipe 16. In other words, the first semicircular tube 16 extends in its axial direction through both first semicircular recesses. The first semicircular notch is substantially a notch formed in a semicircular shape, so that the first semicircular notch and the outer surface of the first semicircular tube 16 can be welded together in a conformal manner. As shown in fig. 4, the portion of the first semicircular tube 16 located in the first protective shell 12 is provided with a first cut 161 and a third cut 163, and the first cut 161 and the third cut 163 are axially spaced apart. In other words, the axial distance between the first cut 161 and the third cut 163 is smaller than the distance between the two first semicircular recesses. When buckling is desired, the portion of the first barrel 16 between the first cut 161 and the third cut 163 may be removed so that it does not interfere with the sealing of the grooved tube. In the present embodiment, the first semicircular tube 16 is integrally connected directly to the first protective shell 12, and the first semicircular tube 16 extends integrally along the same axis; even if the portion between the first cut 161 and the third cut 163 is removed, the remaining two sections of the first semicircular tube 16 still extend along the same axis, i.e., the remaining two sections of the first semicircular tube 16 maintain good coaxiality. It should be noted that a circular tube is divided into two halves along a diameter thereof, each half being a semicircular tube, and the first semicircular tube 16 and the second semicircular tube 22 (the second semicircular tube 22 will be described in the following embodiments) are essentially semicircular tubes. Since the pipeline is mostly cylindrical, the first semicircular tube 16 (and the second semicircular tube 22) can be attached to the surface of the pipeline, and the matching performance and the sealing performance are good.

As shown in fig. 1-3, the second protective shell 18 includes a second protective cover 20 and a second semicircular tube 22. The second protecting cover 20 is configured as a housing having an opening, for example, the second protecting cover 20 is a housing having a semi-cylindrical shape (for example, two sides of an arc-shaped plate are respectively connected with a fan-shaped side plate, thereby enclosing a housing having a semi-cylindrical shape). Two sides of the second protection cover 20 are respectively provided with a second semicircular gap, and the two second semicircular gaps are used for installing a second semicircular pipe 22. Stated another way, second semicircular tube 22 extends through both second semicircular indentations along its axial direction. The second semicircular notch is substantially a notch formed in a semicircular shape, so that the second semicircular notch and the outer surface of the second semicircular tube 22 can be welded together in a conformal manner. As shown in fig. 5, the portion of the second semi-circular tube 22 located in the second protective shell 18 is provided with a second cut 222 and a fourth cut 224, and the second cut 222 and the fourth cut 224 are axially spaced apart. Stated another way, the axial spacing of the second 222 and fourth 224 kerfs is less than the spacing of the two second semicircular notches. When buckling is desired, the portion of second half pipe 22 between second cut 222 and fourth cut 224 may be removed so that it does not interfere with the sealing of the grooved pipe elements. The second semi-circular tube 22 is directly connected with the second protective shell 18 integrally, and the second semi-circular tube 22 extends along the same axial lead integrally; even if the portion between the second cut 222 and the fourth cut 224 is removed, the remaining two sections of the second half-pipe 22 still extend along the same axis, i.e., the remaining two sections of the second half-pipe 22 maintain good coaxiality.

As shown in fig. 1-3, in one embodiment of the present invention, the first protective cover 14 and the second protective cover 20 can be fastened to form the protective compartment 24, for example, the first protective cover 14 and the second protective cover 20 can be fastened to form a cylindrical protective compartment 24. The protective capsule 24 is used to house and seal the grooved pipe elements in order to insulate them from the surrounding soil. Therefore, the groove pipe fitting is prevented from being exerted by external soil layers and also prevented from being corroded by various substances from the external soil layers. Of course, before installation of the grooved pipe protection device 10 into a pipeline, it is necessary to remove the portion of the first semicircular tube 16 between the first cut 161 and the third cut 163 and the portion of the second semicircular tube 22 between the second cut 222 and the fourth cut 224 so that these two portions do not interfere with the installation of the grooved pipe protection device 10 into the pipeline. After the portion of the first semicircular tube 16 between the first cut 161 and the third cut 163 is removed, and the portion of the second semicircular tube 22 between the second cut 222 and the fourth cut 224 is removed, the remaining two sections of the first semicircular tube 16 are respectively fastened to the remaining two sections of the second semicircular tube 22 to form the first tube sleeve 26 and the second tube sleeve 28. Both the first sleeve 26 and the second sleeve 28 extend into the protection cabin 24. The first half-pipe sleeve and the second half-pipe sleeve may be of the same diameter and length. The first sleeve 26 and the second sleeve 28 are used to encase two pipes connected by a grooved tube. Since the remaining two sections of first semicircular tube 16 (i.e., the portion of first semicircular tube 16 still attached to first boot 14 after first cut 161 and third cut 163 are removed) maintain good concentricity, the remaining two sections of second semicircular tube 22 (i.e., the portion of second semicircular tube 22 still attached to second boot 20 after second cut 222 and fourth cut 224 are removed) maintain good concentricity, so that first sleeve 26 and second sleeve 28 can maintain good concentricity as well, i.e., the axial axes of first sleeve 26 and second sleeve 28 can be collinear. Therefore, when the groove pipe fitting protection device 10 is installed on a pipeline, the matching performance is better, and the sealing performance is better.

In one embodiment of the invention, the inner diameters of the first sleeve 26 and the second sleeve 28 are equal to the inner diameter of the grooved pipe; alternatively, the inner diameters of the first and

second sleeves

26, 28 are equal to the outer diameter of the pipe. The closer the inner walls of the first and second sleeves 26, 28 (i.e., the inner surface of the first and second semi-circular tubes 16, 22) are to the outer surface of the pipe, the smaller the gap between the inner walls of the sleeves and the outer surface of the pipe, and the better the sealing of the first and

second sleeves

26, 28 to the grooved pipe, the less susceptible the grooved pipe will corrode.

As shown in the drawings, in one embodiment of the present invention, the first protective case 12 and the second protective case 18 are fastened by a plurality of clip structures 30, so that the first protective case 12 and the second protective case 18 can be easily disassembled.

As shown in fig. 1-3, in one embodiment of the present invention, the clamp structure 30 includes a first clamp body 302 and a second clamp body 304, the first clamp body 302 being connected (e.g., welded) to the first semicircular tube 16, and the second clamp body 304 being connected (e.g., welded) to the second semicircular tube 22. The first hoop body 302 and the second hoop body 304 can be detachably connected by bolts 306, so that the first protective shell 12 and the second protective shell 18 can be detachably buckled.

In one embodiment of the invention, the axial length of the first 26 and second 28 shrouds is greater than the inner diameter of the grooved pipe elements. Stated another way, the axial length of each of the first and

second sleeves

26, 28 is greater than the outer diameter of the pipe. In the present embodiment, the axial lengths of the first semicircular tube 16 and the second semicircular tube 22 are lengthened, so that the lengths of the first socket 26 and the second socket 28 are lengthened. After the first protective shell 12 and the second protective shell 18 are fastened, not only the channel tube is enclosed, but also a part of the pipe (on both sides of the channel tube). The protection of the trench tube protection device 10 is thus wide and the trench tube and the part of the pipe surrounding the trench protection are not exposed to the damaging forces of the earth. In a preferred embodiment, the axial length of the first 26 and second 28 shrouds is 5 times the inner diameter of the grooved pipe section.

In one embodiment of the present invention, the outer surfaces of the first protective shell 12 and the second protective shell 18 have an anticorrosive paint layer and a waterproof paint layer. The waterproof coating layer can be used for preventing moisture in the soil layer from permeating into the groove pipe protection device 10, and the anticorrosive coating layer can be used for preventing corrosive substances in the soil layer from corroding the groove pipe protection device 10. The anti-corrosion coating layer and the waterproof coating layer can prolong the service life of the groove pipe fitting protection device 10.

In one embodiment of the present invention, the inner surfaces of the first protective shell 12 and the second protective shell 18 have a layer of anti-corrosive paint. Since there may be a small amount of liquid seeping out or a small amount of gas escaping from the piping, the seeping out liquid or escaping gas may cause corrosion to the inner surface of the trench tube protection device 10. The anti-corrosion coating layers are arranged on the inner surfaces of the first protective shell 12 and the second protective shell 18, so that corrosion which may be generated inside the grooved pipe protection device 10 can be effectively prevented.

A method of manufacturing the grooved pipe protection device 10 is described below with reference to fig. 1 to 6.

In a first step, as shown in FIG. 6, first and second slots are cut into the outer surface of the cylindrical tube, the first and second slots being axially spaced apart. The two slots need only be cut to a certain depth, so that the circular tube still keeps a whole body, but the part between the two slots can be removed according to the requirement, and the tube wall does not need to be completely penetrated.

In a second step, as shown in FIG. 6, the circular tube is axially cut along a diameter of the circular tube into two semicircular tubes, namely a first semicircular tube 16 and a second semicircular tube 22. That is, the two semicircular tubes are the same size and shape. And the first incision is cut into a first incision 161 and a second incision 222 and the second incision is cut into a third incision 163 and a fourth incision 224. The first barrel 16 has a first cut 161 and a third cut 163. Second half-pipe 22 has second cut 222 and fourth cut 224.

In a third step, the first protective cover 14 and the second protective cover 20 each provided with a cavity are manufactured (for example, provided in a semi-cylindrical shape). Two semicircular notches, i.e., two first semicircular notches, are respectively formed at both sides of the first protective cover 14. The spacing of the two first semicircular notches is greater than the spacing of the first cut 161 and the third cut 163.

Two semicircular notches, i.e., two second semicircular notches, are respectively formed at both sides of the second protective cover 20. The spacing of the two second semicircular notches is greater than the spacing of the second and

fourth cuts

222, 224.

Fourth, the first protective case 12 and the second protective case 18 are manufactured. The manufacturing method of the first protective case 12 is as follows: the first semicircular tube 16 is connected (e.g., welded) to the two first semicircular indentations of the first protective cap 14, and the first cut 161 and the third cut 163 are disposed between the two first semicircular indentations. The second protective shell 18 is manufactured as follows: the second half-round tube 22 is connected (e.g., welded) into the two second half-round indentations of the second boot 20, and the second cut 222 and the fourth cut 224 are disposed between the two second half-round indentations.

And fifthly, coating an anticorrosive coating layer and a waterproof coating layer on the outer surfaces of the first protective shell 12 and the second protective shell 18, and coating an anticorrosive coating layer on the inner surfaces of the first protective shell 12 and the second protective shell 18.

Sixthly, mounting connecting pieces on the first protective shell 12 and the second protective shell 18 so that the first protective shell 12 and the second protective shell 18 can be detachably buckled. In a preferred embodiment, a plurality of clip structures 30 are provided on the first protective case 12 and the second protective case 18 (the clip structures 30 include a first clip body 302 and a second clip body 304 that are removably connected). For example: a first hoop 302 is provided on the first protective case 12, and a second hoop 304 is provided on the second protective case 18.

When the connection is installed, the grooved pipe protection device 10 is completed.

As can be seen from the above manufacturing steps, since the first semicircular tube 16 is integrally connected to the first protective cap 14, even if the portion between the first cut 161 and the third cut 163 is removed, the remaining two sections of the first semicircular tube 16 (i.e., the two sections still connected to the first protective cap 14) can maintain good coaxiality. Also, since the second half pipe 22 is integrally connected to the second shield 20, even if a portion between the second cut 222 and the fourth cut 224 is removed, the remaining two sections of the second half pipe 22 (i.e., the two sections still connected to the second shield 20) can maintain good coaxiality. Further, when the remaining two segments of the first semicircular tube 16 are respectively engaged with the remaining two segments of the second semicircular tube 22, the first sleeve 26 and the second sleeve 28 can be formed to maintain good coaxiality. Therefore, when the groove pipe fitting protection device 10 is installed on a pipeline, the matching performance is better, and the sealing performance is better.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A groove pipe fitting protection device is characterized by comprising a first protection shell and a second protection shell which are detachably buckled;

the first protection shell comprises a first protection cover and a first semicircular pipe, the first semicircular pipe extends through the first protection cover, a part of the first semicircular pipe, which is located in the first protection cover, is provided with a first cut and a third cut, the first cut and the third cut are distributed at intervals in the axial direction, and the first cut and the third cut are used for removing the part, which is located between the first semicircular pipe and the first semicircular pipe, of the first semicircular pipe before buckling;

the second protective shell comprises a second protective cover and a second semi-circular tube, the second semi-circular tube extends through the second protective cover, a part of the second semi-circular tube, which is located in the second protective cover, is provided with a second cut and a fourth cut, the second cut and the fourth cut are distributed at intervals in the axial direction, and the second cut and the fourth cut are used for removing the part of the second semi-circular tube, which is located between the second cut and the fourth cut, before buckling;

the first protection cover and the second protection cover are buckled to form a protection cabin, the protection cabin is used for containing and sealing the groove pipe fitting, the two remaining parts of the first semicircular pipe are correspondingly buckled with the two remaining parts of the second semicircular pipe respectively to form a first pipe sleeve and a second pipe sleeve, and the first pipe sleeve and the second pipe sleeve are used for sleeving two pipelines connected by the groove pipe fitting.

2. The grooved pipe protection device of claim 1 wherein the first and second shrouds have an inner diameter equal to the inner diameter of the grooved pipe.

3. A grooved pipe section protector as claimed in claim 1 wherein the first protective casing and the second protective casing are connected by a plurality of clip formations.

4. The grooved pipe protection device of claim 3 wherein the clamp structure includes a first clamp body and a second clamp body, the first clamp body is coupled to the first semi-circular pipe, the second clamp body is coupled to the second semi-circular pipe, and the second clamp body are removably coupled.

5. The grooved pipe protection device of claim 1 wherein the first and second shrouds have an axial length greater than an inner diameter of the grooved pipe.

6. The grooved pipe protection device of claim 1, wherein the outer surfaces of the first and second protective shells are provided with a layer of anti-corrosive paint and a layer of water-resistant paint.

7. The grooved pipe protection device of claim 1 wherein the inner surfaces of the first and second protective shells are provided with a layer of anti-corrosive paint.

8. A method of manufacturing a trench tubing protector, comprising:

cutting a first cutting groove and a second cutting groove on the outer surface of the round pipe, wherein the first cutting groove and the second cutting groove are distributed at intervals in the axial direction;

axially bisecting the round tube into a first semi-round tube and a second semi-round tube, wherein the first cut is bisected into a first cut and a second cut, the second cut is bisected into a third cut and a fourth cut, the first semi-round tube has the first cut and the third cut, and the second semi-round tube has the second cut and the fourth cut;

manufacturing a first protective cover and a second protective cover which are both provided with a cavity, manufacturing a semicircular notch on each of two sides of the first protective cover, and manufacturing a semicircular notch on each of two sides of the second protective cover;

welding the first semicircular tube to the two semicircular notches of the first protective cover to form a first protective cover, wherein the first and third cuts are located between the two semicircular notches of the first protective cover;

welding the second semi-circular tube to the two semi-circular indentations of the second protective cover to form a second protective shell, wherein the second and fourth cuts are located between the two semi-circular indentations of the second protective cover;

the first protective shell and the second protective shell are provided with a plurality of hoop structures, so that the first protective shell and the second protective shell can be detachably buckled, wherein the first cut mark and the third cut mark are used for removing the part, between the first semicircular pipe and the second semicircular pipe, of the first semicircular pipe before buckling, and the second cut mark and the fourth cut mark are used for removing the part, between the second semicircular pipe and the second semicircular pipe, of the second semicircular pipe before buckling.

9. The manufacturing method of the groove pipe protection device according to claim 8, wherein an anticorrosive paint layer and a waterproof paint layer are provided on the outer surfaces of the first protection shell and the second protection shell.

10. The method for manufacturing the grooved pipe protection device according to claim 8, wherein an anticorrosive paint layer is provided on the inner surfaces of the first protective shell and the second protective shell.