CN215950571U - Pipeline protection device - Google Patents

Abstract

The utility model discloses a pipeline protection device, relates to the technical field of protection, and aims to solve the problems that a pipeline protection device provided by the prior art is not easy to install and high in production cost. The pipeline protection device comprises a base frame, a main bearing beam and a hanging frame, wherein the base frame is fixedly arranged on the bearing surface, the main bearing beam is supported by the base frame, the hanging frame is supported by the main bearing beam, and the hanging frame and the main bearing beam are enclosed to form a protection space.

Description

Pipeline protection device

Technical Field

The utility model relates to the technical field of protection, in particular to a pipeline protection device.

Background

In the building construction process, the pipeline in the construction site needs to be ensured to normally work, and the pipeline is prevented from being damaged due to large-scale underground construction projects such as tunnel excavation, subway construction, underground square construction and the like.

In the prior art, a large pipeline protection device is generally formed by manually welding a bailey frame, an i-steel, a support column and other members, and then a pipeline is placed in the pipeline protection device to play a role in protection.

However, the structures of the components such as the bailey frames, the I-beams, the supporting columns and the like are complicated. Therefore, the pipeline protection device provided by the prior art has the problems of difficult installation and high production cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pipeline protection device, which is used for simplifying the structure of the pipeline protection device and reducing the production cost.

To achieve the above objects, the present invention provides a line protection device. The pipeline protection device comprises a base frame, a main bearing beam and a hanging frame, wherein the base frame is fixedly arranged on a bearing surface, the main bearing beam is supported by the base frame, and the hanging frame is supported by the main bearing beam. The gallows and the main carrier bar enclose to form a protective space.

Compared with the prior art, in the pipeline protection device provided by the utility model, the base frame is fixedly arranged on the bearing surface, so that the stability of the base frame relative to the bearing surface can be ensured. Therefore, after the pipeline protection device is assembled, the stability of the pipeline protection device relative to the bearing surface can be ensured. Then, because the main carrier bar is supported by the pedestal, the gallows is supported by the main carrier bar, and gallows and main carrier bar enclose to close and form the protection space. On this basis, the pipeline may be arranged in the aforementioned shielded space. Under the common protection of the hanger and the main bearing beam, the safety of the pipeline can be ensured, and the threat to the safety of the pipeline caused by external construction or other conditions is avoided. Furthermore, the pipeline protection device provided by the utility model only comprises the pedestal, the main bearing beam and the hanging bracket, and the pedestal, the main bearing beam and the hanging bracket are all common construction structures in the building industry. Therefore, the pipeline protection device provided by the utility model has the advantages of simple structure and easiness in manufacturing, and meanwhile, the production cost and the installation difficulty of the pipeline protection device can be reduced because a complex component such as a bailey frame is not needed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an isometric view of a line protection device in an embodiment of the utility model;

FIG. 2 is a front view of FIG. 1 in an embodiment of the present invention;

FIG. 3 is a top view of FIG. 1 in an embodiment of the present invention;

FIG. 4 is a schematic view of a portion of a pipeline guard according to an embodiment of the present invention;

FIG. 5 is a schematic view of the connection of two sub-carrier beams according to an embodiment of the present invention;

FIG. 6 is a front view of FIG. 5 in an embodiment of the present invention;

FIG. 7 is a first schematic view of a pipeline in a pipeline guard according to an embodiment of the present invention;

FIG. 8 is a second schematic view of a pipeline installed in a pipeline guard according to an embodiment of the present invention.

Reference numerals:

1-pedestal, 10-base, 11-bearing column, 12-backing plate;

2-main bearing beam, 20-sub bearing beam, 3-hanging bracket, 4-connecting plate,

5-reinforcing plate, 6-bearing beam, 7-baffle plate and 8-bearing plate.

9-pipeline.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Along with the large-scale development of urban underground space development and utilization projects, the construction conflict problem between urban underground complex pipelines and proposed buildings is more acute, and the suspension protection of the pipelines is more common in the project construction process. For example, in the construction process of a building, it is necessary to ensure that a pipeline in a construction site works normally, and avoid the pipeline from being damaged due to large-scale underground construction projects such as tunnel excavation, subway construction, underground square construction and the like.

In the prior art, a large pipeline protection device is generally formed by manually welding a bailey frame, an i-steel, a support column and other members, and then a pipeline is placed in the pipeline protection device to play a role in protection. However, the components such as the bailey frames, the I-beams and the supporting columns are complex in structure and are not easy to obtain. Therefore, the pipeline protection device provided by the prior art has the problems of difficult installation and high production cost.

In order to solve the above technical problem, an embodiment of the present invention provides a pipeline protection device. The above-mentioned lines may refer to pipes for conveying liquids, gases or solids ground into powder. Of course, other configurations may be referred to. In the embodiments of the present invention, a pipe for transferring liquid, gas, or solid ground into powder is described as an example. It is to be understood that the following description is only for purposes of understanding, and is not intended to be limiting.

Referring to fig. 1, the pipeline protection device comprises a pedestal 1, a main carrier beam 2 and a hanging bracket 3, wherein the pedestal 1 is fixedly arranged on a bearing surface, the main carrier beam 2 is supported by the pedestal 1, and the hanging bracket 3 is supported by the main carrier beam 2. The hanger 3 and the main bearing beam 2 enclose to form a protection space.

Referring to fig. 1, the shape, material and number of the base frame 1, the main carrier bar 2 and the hanger 3 may be set according to actual conditions as long as the structural stability of the assembled pipeline protector is ensured. For example, the hanger 3 may be a U-shaped hanger or any other hanger 3 having any desired shape, and is not particularly limited herein.

Referring to fig. 1, the base frame 1 is fixedly arranged on the carrying surface in various ways, such as bonding, clamping, etc. The bearing surface can be the ground, a foundation pit, a beam with a certain distance with the ground, a ceiling and the like. The main carrier bar 2 is supported by the base frame 1, and the hanger 3 is supported by the main carrier bar 2. The above-mentioned means of "holding" are also various, and may be, for example, gluing, clamping, welding, screwing, bolting, etc.

Referring to fig. 1, the hanger 3 and the main carrier bar 2 enclose a protection space, and the size and shape of the protection space may be determined according to the shape and size of the pipeline to be protected, and are not specifically limited herein.

Referring to fig. 1 to 8, in the pipeline protection device according to the embodiment of the present invention, since the base frame 1 is fixedly disposed on the bearing surface, stability of the base frame 1 with respect to the bearing surface can be ensured. Therefore, after the pipeline protection device is assembled, the stability of the pipeline protection device relative to the bearing surface can be ensured. Then, because main carrier bar 2 is supported by bed frame 1, gallows 3 is supported by main carrier bar 2, and gallows 3 and main carrier bar 2 enclose to close and form the guard space. On this basis, the line 9 can be arranged in the aforementioned protective space. Under the common protection of the hanger 3 and the main carrier bar 2, the safety of the pipeline 9 can be ensured, and the threat to the safety of the pipeline 9 caused by external construction or other conditions is avoided. Further, the pipeline protection device provided by the embodiment of the utility model only comprises the pedestal 1, the main carrier bar 2 and the hanger 3, and the pedestal 1, the main carrier bar 2 and the hanger 3 are all common construction structures in the building industry. Therefore, the pipeline protection device provided by the embodiment of the utility model has the advantages of simple structure and easiness in manufacturing, and meanwhile, the production cost and the installation difficulty of the pipeline protection device can be reduced because complex components such as the bailey frames are not needed.

As a possible implementation manner, referring to fig. 1, the above-mentioned pedestal 1 may include bases 10 arranged at intervals, and the number of the bases 10 may be two, three or more, as long as it is ensured that the number of the bases 10 is greater than or equal to 2, so that the main carrier bar 2 is located on the bases 10 arranged at intervals. In the embodiment of the present invention, the base frame 1 includes two bases 10 having the same material, shape and height, and the two bases 10 are disposed in parallel with each other. The base 10 is a concrete base, and the shape of the base 10 is a rectangular parallelepiped, and the height of the rectangular parallelepiped base 10 can be determined according to actual needs, and is not particularly limited herein.

Referring to fig. 1, a load post 11 is fastened to each base 10, and the main load beam 2 is fastened to the load post 11 of each base 10. The above-mentioned "fastening" means are various, and may be, for example, bonding, clamping, welding, screwing, or bolting. In an alternative manner, the base frame 1 may further include a pad 12 fastened to the base 10 and connected to the load-bearing column 11. At this time, the base 10 may be connected with the load post 11 through the pad 12. The material, shape and height of the support column 11 and the base plate 12 can be set according to actual conditions. In the embodiment of the present invention, the supporting column 11 is a metal supporting column, and the supporting column 11 is in a rectangular parallelepiped shape, and the height of the supporting column 11 in the rectangular parallelepiped shape can be determined according to actual needs, and is not specifically limited herein. The backing plate 12 is a metal backing plate, and the shape of the backing plate 12 is also a rectangular parallelepiped. For example, the load post 11 may be made of steel pipe, and the pad 12 may be made of steel.

Referring to fig. 1, in practical application, a metal backing plate is fastened to the upper surface of each concrete base. Specifically, anchor bolt holes are reserved at four corners of a rectangular metal base plate, and after the concrete base is manufactured, the metal base plate is fixed on the upper surface of the concrete base through anchor bolts. Then, the metal load-bearing columns and the metal backing plates are welded together to firmly connect the base 10 and the load-bearing columns 11. It should be noted that the metal bearing column is located in the middle of the metal tie plate, and the welding seam between the metal bearing column and the metal tie plate is dense and full, so as to ensure the connection tightness between the bearing column 11 and the tie plate 12, further ensure the relative stability between the bearing column 11 and the base 10, and ensure the safety and stability of the pipeline protection device.

The number of the bearing columns arranged on each base is various, and two possible arrangement modes are taken as examples for description, and it is understood that the following description is only for understanding and is not used for specific limitation.

In one example, one bearing column is fixedly connected to each base, and the two bearing columns on the two bases can be arranged opposite to each other or not. In the embodiment of the utility model, two bearing columns on two bases are arranged oppositely.

In another example, referring to fig. 1, each base 10 has a plurality of load-bearing posts 11 fastened thereto at intervals, for example, the "plurality" referred to herein as greater than or equal to 2. In the embodiment of the present invention, two bearing columns 11 are provided on the upper surface of each base 10, and the two bearing columns 11 on one base 10 are parallel to each other. In addition, the two oppositely disposed carrying columns 11 on the two bases 10 are also parallel to each other, i.e. the carrying columns 11 on all the bases 10 form the carrying columns 11 distributed in a regular matrix. It should be understood that, at this time, the base plates 12 required to connect the load-bearing columns 11 and the base 10 are also arranged parallel to each other, i.e., the arrangement positions of the base plates 12 depend on the arrangement positions of the load-bearing columns 11.

Referring to fig. 1 to 3, each row of the load-bearing pillars 11 distributed along a first direction is correspondingly supported by one main load-bearing beam 2, and the first direction is a direction extending from one base 10 to another base 10. In the embodiment of the present invention, the four bearing columns 11 bear two main bearing beams 2 arranged in parallel, and therefore, an included angle does not exist between the two main bearing beams 2, so that the main bearing beams 2 or the pipeline protection device is prevented from occupying too large space and wasting resources. Meanwhile, the composition structure, the specification and the like of the base frame 1 are completely the same, so that the damaged base frame 1 can be replaced in the later period, and the replaceability is strong.

As a possible implementation manner, the main carrier bar may be an arc main carrier bar, a linear main carrier bar, or a special-shaped main carrier bar.

Referring to fig. 1 and 7, the main carrier bar 2 between the two carrier columns 11 may be curved as a whole, and in this case, the structure formed by the main carrier bar 2 and the base frame 1 may be arched. When the arch is subjected to the weight of the pipeline 9, the downward weight can be transmitted to the adjacent sections both in the downward and outward direction. I.e. the arch structure is subjected to the action of the gravity of the pipeline 9, which will generate an external thrust, and since the base frame 1 is located at both ends of the main carrier beam 2, when the pipeline protection device is subjected to the action of the gravity of the pipeline 9, the gravity of the pipeline 9 will be transferred to the main carrier beam 2 and the base frame 1. Further, in the embodiment of the present invention, the pipeline protection device includes two main carrier beams 2 arranged side by side, and the pipeline protection device is a double-row arched member, so that the bearing capacity of the pipeline protection device can be further enhanced, the stability and the safety of the pipeline protection device can be ensured, and the safety of the pipeline 9 can be further ensured.

The main bearing beam can be a linear main bearing beam, namely the main bearing two bodies are linear, and the main bearing beam can be of a cylindrical structure at the moment.

The main load beam may also be a profiled main load beam, for example, the shape of the main load beam may be a wave shape, a shape composed of a straight line shape and a curved line shape, or other shapes. It will be appreciated that the shape of the main load beam described above may also be arranged as practical.

As a possible implementation manner, the main carrier bar may be an integrated main carrier bar or a split main carrier bar.

In one example, when the main carrier bar is an integral main carrier bar, the main carrier bar does not need to be reassembled before actual use. In this case, the deformation of the main load beam caused by the assembling method such as welding or screwing can be prevented from being changed, and the assembling error of the main load beam can be reduced or eliminated. The integrated main bearing beam can be manufactured by adopting a casting forming process and can be manufactured by adopting a 3D printing forming process.

In particular, when the main bearing beam is manufactured by adopting a casting molding process, the main bearing beam with any shape and any size can be produced. And the process has strong adaptability, and can be used for manufacturing main bearing beams made of different materials. In addition, the main bearing beam manufactured by the casting molding process has low cost and can be produced in batches. In addition, the main bearing beam manufactured and formed by adopting the casting and forming process has high-efficiency precision lasting retentivity and is free from after-sale maintenance. It should be understood that "after-sale maintenance-free" is understood herein to mean that the rigidity, size and appearance of the main carrier bar manufactured by the casting process are substantially unchanged from the original state (during manufacturing and molding) within the normal service life of the pipeline protection device, and thus the main carrier bar does not need to be subjected to rigid deformation correction or size correction in the middle.

When the main bearing beam is manufactured by adopting the 3D printing and forming process, leftover materials do not need to be removed, materials are saved, and the utilization rate of the materials is improved. Second, the process does not require large and complex production lines. The required shape and structure of the main bearing beam can be obtained by utilizing equipment such as a computer, a printer and the like, the production cost is reduced, and meanwhile, the research, development and manufacturing periods of the main bearing beams with different specifications are shortened.

In another example, referring to fig. 1 to 6, when the main carrier beam 2 is a split type main carrier beam, the main carrier beam 2 may lengthen (or shorten) the length of the main carrier beam 2 at any time according to the length of the pipeline to be protected. Furthermore, the split type main bearing beam can also adapt to construction sites with narrow entrances or curved channels. For example, when the entrance of the construction site is small, the split type main carrier bar may be split first, then the split parts are brought into the construction site, and then the main carrier bar 2 is assembled to meet the actual needs. Based on this, split type main carrier bar can enlarge the application scope of main carrier bar 2, and then enlarges the application scope of pipeline protector.

Specifically, referring to fig. 1 to 6, in the case that the main carrier bar 2 is a split type main carrier bar, the main carrier bar 2 may include a plurality of sub carrier bars 20 connected in sequence. In the embodiment of the present invention, the sub carrier bar 20 may be a cylindrical structure, and the split main carrier bar adopts 4 sub carrier bars 20 having a cylindrical structure with a uniform diameter. Then, one connecting plate 4 is respectively and tightly arranged at the connecting end of every two sub-bearing beams 20, and the two connecting plates 4 are tightly connected together. Specifically, the two connecting plates 4 may be fastened together by high-strength bolts, or may be welded together. The material of the connecting plate 4 may be the same as that of the sub-carrier bar 20, and for example, the connecting plate and the sub-carrier bar are all made of metal. The sub-carrier 20 and the connection plate 4 can be connected more tightly without chemical reaction, so as to ensure the safety of the sub-carrier 20 and the connection plate 4. In the embodiment of the present invention, the sub carrier bar 20 is a steel pipe, and the connecting plate 4 is a steel plate.

Referring to fig. 5 and 6, further, a reinforcing plate 5 is disposed between each connecting plate 4 and the corresponding sub load beam 20. At this time, the tightness of the connection between the connecting plate 4 and the sub carrier bar 20 can be further enhanced, and the stability and safety of the connection between the two adjacent sub carrier bars 20 can be ensured. The reinforcing plate 5 may be a triangular reinforcing rib, and the triangular reinforcing rib may further reinforce the connection tightness between the connecting plate 4 and the sub-carrier beam 20 due to the high stability of the triangle. Because the sub carrier beam 20 is of a cylindrical structure and the connecting plate 4 is of a rectangular structure, the triangular reinforcing armpits are uniformly arranged at the positions, opposite to the four sides, of the rectangular connecting plate. In the embodiment of the utility model, eight triangular reinforcing armpits are adopted, every four triangular reinforcing armpits are positioned on the same surface of the rectangular connecting plate, and the eight triangular reinforcing armpits are symmetrically distributed.

After the assembly of the load-bearing beam is completed, the assembled split main load-bearing beam can be lifted to the metal load-bearing column by using a lifting device such as a crane, and the metal load-bearing column and the metal split main load-bearing beam are welded together. The two split main carrier beams are then connected to the base frame in the same manner.

As a possible implementation, referring to fig. 1 to 4, the pipeline protection device may further include a plurality of load-bearing beams 6, and the plurality of load-bearing beams 6 are arranged on the main load-bearing beam 2 at intervals. The load beam 6 is used to connect two main load beams 2 that are adjacently arranged, so that the main load beams 2 are more stable. It will be appreciated that the number of load carrying beams 6 described above may be determined according to the number of spreaders 3, and that a plurality of load carrying beams 6 may be provided at equal intervals on the main load carrying beam 2, or at unequal intervals on the main load carrying beam 2. In the embodiment of the present invention, the plurality of load-bearing cross beams 6 are disposed on the main load-bearing beam 2 at equal intervals, and at this time, the traction force applied by the load-bearing cross beams 6 to the main load-bearing beam 2 is more uniform, so as to further ensure the stability of the main load-bearing beam 2.

Referring to fig. 1 to 4, further, baffles 7 are arranged on both sides of the joint of each load-bearing beam 6 and the main load-bearing beam 2, and the hangers 3 are fastened to the ends of the load-bearing beams 6. Specifically, two baffles 7 are arranged on each main carrier bar 2 in parallel, and the length extension direction of the two baffles 7 is perpendicular to the length extension direction of the main carrier bar 2. One side of the load beam 6 is located between two flaps 7 of one main load beam 2 and welded to the flaps 7, and the other side of the load beam 6 is located between two flaps 7 of the other main load beam 2 and welded to the flaps 7. The carrier beam 6 is now connected to the two main carrier beams 2 via the flaps 7. Due to this, two main carrier beams 2 side by side can form one plane, since two main carrier beams 2 side by side are provided in the pipeline guard. When the carrier bar 6 is arranged on two main carrier bars 2, the carrier bar 6 is more stable, and the spreader 3 connected to the carrier bar 6 is more stable. Furthermore, the load beam 6 is welded between the two baffle plates 7. At this time, the two dampers 7 can restrict the movement of the load beam 6 in the "length extending direction of the main load beam 2", thereby preventing the hanger 3 connected to the load beam 6 from moving in the "length extending direction of the main load beam 2". In summary, the carrier bar 6 ensures not only the stability of the main carrier bar 2, but also the stability of the spreader 3. It should be understood that the baffle 7 may be a metal baffle 7, such as steel, alloy, etc.

As a possible realization, see fig. 7 and 8, the above-described pipeline guard may further comprise a carrying floor 8 carried by the spreader 3.

In particular, with reference to fig. 7 and 8, a carrying floor 8 is provided on the spreader 3 along the length extension of the main carrying beam 2 for carrying the pipeline 9. The bearing plate 8 can be made of a material with high rigidity, and the material with high rigidity has strong deformation resistance, so that the bearing plate is not easy to deform or crack in the actual use process. At this moment, not only be convenient for bear the weight of pipeline 9, still be favorable to later stage staff to walk on loading board 8 simultaneously, maintain pipeline 9. It will be appreciated that, with reference to figure 8, the base 10 may be provided with through-holes so that the pipeline 9 is arranged on the carrier plate 8 through said through-holes. At this time, in the actual construction process, the pipeline 9 can be prevented from being bent, and the pipeline 9 is prevented from being damaged.

In summary, because the pipeline protection device provided by the embodiment of the utility model is mostly made of steel materials commonly used in the building construction process, when the pipeline protection device is damaged or is not required to be used, the pipeline protection device can be recycled, so that the environment-friendly and green construction is realized. Moreover, the pipeline protection device is convenient to disassemble, so that the pipeline protection device is beneficial to cyclic utilization and saves construction resources.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A pipeline protection device is characterized by comprising a pedestal, a main bearing beam and a hanging bracket, wherein the pedestal is fixedly arranged on a bearing surface, the main bearing beam is supported by the pedestal, and the hanging bracket is supported by the main bearing beam; the hanger and the main bearing beam enclose to form a protection space.

2. The pipeline protector of claim 1, wherein the base frame comprises spaced pedestals, each pedestal having a load post fastened thereto, and the main load beam is fastened to each pedestal having the load post fastened thereto.

3. The line protection device of claim 2, wherein the base frame further comprises a backing plate securely disposed on the base and securely connected to the load-bearing column.

4. The pipeline protector according to claim 2, characterized in that the bases are concrete bases, a metal backing plate is fastened to the upper surface of each concrete base, the bearing columns are metal bearing columns, and the metal bearing columns are welded to the metal backing plates.

5. The pipeline protector as claimed in claim 2, wherein a plurality of said load-bearing columns are fastened to each of said bases at intervals, and said load-bearing columns on all of said bases form a regular matrix of load-bearing columns; each row of the bearing columns distributed along the first direction correspondingly bears one main bearing beam; the first direction is a direction extending from one base to another base.

6. The pipeline protector of claim 1, wherein the primary load beam is an arcuate primary load beam, a straight primary load beam, or a profiled primary load beam.

7. The pipeline protector of claim 1, wherein the main load beam is a one-piece main load beam or a split main load beam.

8. The pipeline protector as claimed in claim 7, wherein, in the case that the main carrier beam is a split main carrier beam, the main carrier beam comprises a plurality of sub carrier beams connected in sequence; the connecting ends of the two sub bearing beams are respectively and fixedly provided with a connecting plate, and the two connecting plates are fixedly connected together; and a reinforcing plate is arranged between each connecting plate and the corresponding sub-bearing beam.

9. The line protection device of claim 1, further comprising a plurality of load beams spaced apart on the main load beam; baffles are arranged on two sides of the joint of each bearing beam and the main bearing beam; the hanger is fixedly connected with the end part of the bearing beam.

10. The line protection device of claim 1, further comprising a carrier plate carried by the hanger.

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