阅读说明：本技术 装配式电缆保护管及其接地方法 (Assembled cable protection pipe and grounding method thereof ) 是由 邓志祥 潘建兵 郝钰 周求宽 余延武 余杰 邓杰 彭洁 刘清华 于 2021-07-19 设计创作，主要内容包括：本发明公开了一种装配式电缆保护管,包括混凝土包封、若干钢筋骨架一和若干钢筋骨架二,所述钢筋骨架一和钢筋骨架二用于浇筑形成混凝土包封,若干所述钢筋骨架一沿水平方向阵列布置用于完成混凝土包封上部分的浇筑,若干所述钢筋骨架二也沿水平方向阵列布置且分别位于若干钢筋骨架一底部一侧用于完成混凝土包封下部分的浇筑,呢本发明还公开了一种装配式电缆保护管接地方法,通过接地装置运送混凝土运送安装装配式电缆保护管；本发明可以大大增加电缆保护管的强度,可以使电缆得到更好的保护,而且安装方便。(The invention discloses an assembled cable protection pipe, which comprises a concrete package, a plurality of first steel bar frameworks and a plurality of second steel bar frameworks, wherein the first steel bar frameworks and the second steel bar frameworks are used for pouring to form the concrete package; the invention can greatly increase the strength of the cable protection pipe, can better protect the cable and is convenient to install.)

1. The assembly type cable protection pipe is characterized by comprising a concrete envelope (1), a plurality of first steel reinforcement frameworks (2) and a plurality of second steel reinforcement frameworks (3), wherein the first steel reinforcement frameworks (2) and the second steel reinforcement frameworks (3) are used for pouring to form the concrete envelope (1), the number of the first steel reinforcement frameworks (2) is the same as that of the second steel reinforcement frameworks (3), the first steel reinforcement frameworks (2) are U-shaped, the second steel reinforcement frameworks (3) are I-shaped, the plurality of first steel reinforcement frameworks (2) are arranged in an array along the horizontal direction and are respectively positioned on one side of the bottoms of the plurality of first steel reinforcement frameworks (2) and are used for pouring the lower part of the concrete envelope (1), and the pouring of the lower part of the concrete envelope (1) is carried out after the pouring of the upper part of the concrete envelope (1) is finished, the upper part of the concrete envelope (1) is also provided with a through hole (4) for placing a cable.

2. The fabricated cable protection tube of claim 1, wherein: the concrete encapsulation structure is characterized in that a cable penetrating pipe (5) is fixedly connected into the through hole (4), the right end of the cable penetrating pipe (5) is located on the outer side of the concrete encapsulation (1) in an extending mode, the left end of the cable penetrating pipe (5) is located inside the concrete encapsulation (1), and the distance from the right end of the cable penetrating pipe (5) to the right side wall of the concrete encapsulation (1) is equal to the distance from the left end of the cable penetrating pipe (5) to the left side wall of the concrete encapsulation (1).

3. The fabricated cable protection tube of claim 2, wherein: and the left ends of the through holes (4) are provided with bearing guide grooves (6).

4. The fabricated cable protection tube of claim 3, wherein: the left end and the right end of the steel reinforcement framework II (3) are fixedly connected with grounding screw rods (7), and the two grounding screw rods (7) are connected through grounding wires (8).

5. The fabricated cable protection tube of claim 1, wherein: and the top surface of the concrete envelope (1) is provided with a warning mark (9).

6. The fabricated cable protection tube of claim 1, wherein: the right end of the concrete encapsulation (1) is provided with a butt joint groove (10), the right side wall of the butt joint groove (10) and the right side wall of the cable penetrating pipe (5) are located on the same horizontal plane, and the left end of the concrete encapsulation (1) is provided with a guide inclined plane (11).

7. Method for earthing a fabricated cable protection tube, suitable for use in a fabricated cable protection tube according to claim 1, characterized in that it comprises the following steps:

the method comprises the following steps: placing the concrete envelope (1) on a grounding device;

step two: causing the grounding device to transport the concrete envelope (1) to a construction site;

step three: and (4) dismounting the grounding device, and enabling the grounding device to convey the next concrete envelope (1) to the construction position to finish the conveying work of the cable protection pipe.

8. The grounding method of a fabricated cable protection tube according to claim 7, wherein: the grounding device comprises two wedge-shaped clamping plates (12), the two wedge-shaped clamping plates (12) are symmetrically arranged relative to a concrete envelope (1), the two wedge-shaped clamping plates (12) are used for clamping the concrete envelope (1), sliding blocks (13) are fixedly connected to the outer side walls of the two wedge-shaped clamping plates (12), vertically-arranged first sliding plates (14) are slidably connected to the outer walls of the two sliding blocks (13), a fixing plate (15) is fixedly connected to the tops of the two first sliding plates (14) together, first springs (16) used for resetting the wedge-shaped clamping plates (12) are sleeved on the sliding blocks (13), first limiting holes (17) are formed in the outer walls of the sliding blocks (13), first limiting rods (18) used for limiting the sliding of the sliding blocks (13) are inserted into the first limiting holes (17), and L-shaped pull rods (19) are slidably connected to the front and rear sides of the outer walls of the first limiting rods (18), second limiting holes (20) are formed in the side wall of the L-shaped pull rod (19), second limiting rods (21) are inserted into the second limiting holes (20), the second limiting rods (21) are connected to the inner portions of the wedge-shaped clamping plates (12) in a sliding mode, probe rods (22) which are vertically arranged and used for driving the second limiting rods (21) to be separated from the second limiting holes (20) are arranged on the side edges of the second limiting rods (21), and the probe rods (22) are connected to the bottom of the wedge-shaped clamping plates (12) in a sliding mode in the vertical direction.

9. The grounding method of a fabricated cable protection tube according to claim 8, wherein: mounting grooves (23) are formed in the inclined walls of the wedge-shaped clamping plates (12), and a first mounting frame (24) and a second mounting frame (25) which are distributed left and right are connected in the mounting grooves (23) in a sliding mode; a plurality of first conveying rollers (26) which are distributed in an array manner and are transversely arranged are rotatably connected to the inner wall of the first mounting frame (24), a plurality of supporting columns (27) are rotatably connected to the bottom of the first mounting frame (24), and the bottom ends of the supporting columns (27) are rotatably connected with a second sliding plate (28) together; the second sliding plate (28) is connected to the bottom of the inner wall of the mounting groove (23) in a sliding mode, a second spring (29) for resetting the second sliding plate (28) is fixedly connected to the side wall of the second sliding plate (28), a driving inclined surface (30) is formed in the second sliding plate (28), the driving inclined surface (30) is located on the side edge of the second limiting rod (21), and the second limiting rod (21) can drive the second sliding plate (28) to slide by extruding the driving inclined surface (30); all rotate on second installing frame (25) inner wall and be connected with a plurality of second conveying rollers (31) that are the array distribution and be vertical arrangement, the bottom fixedly connected with of second installing frame (25) is in third spring (32) of tensile state, and sliding connection has push rod (33) on the diapire of institute second installing frame (23), the bottom of push rod (33) is located the top of L shape pull rod (19), and second inclined plane (34) have been seted up to the bottom of push rod (33).

10. The grounding method of a fabricated cable protection tube according to claim 8, wherein: when a cable protection pipe needs to be installed, a concrete envelope (1) is placed above the inclined planes of the two wedge-shaped clamping plates (12), the two wedge-shaped clamping plates (12) support the concrete envelope (1), then the external linear driving mechanism is used for driving the fixing plate (15) to move downwards, the fixing plate (15) can drive the two first sliding plates (14) to move downwards together, the two first sliding plates (14) can drive the two wedge-shaped clamping plates (12) to move downwards synchronously through the two sliding blocks (13), the two wedge-shaped clamping plates (12) can drive the concrete envelope (1) to move downwards together, when the concrete envelope (1) is close to the ground, the probe rod (22) at the bottom of the wedge-shaped clamping plate (14) can be firstly contacted with the bottom surface, then the probe rod (22) can move towards the inside of the wedge-shaped clamping plate (14), the probe rod (22) can drive the second limiting rod (21) to move through the inclined plane, the second limiting rod (21) slowly slides out of the second limiting hole (20), the second limiting rod (21) does not limit the L-shaped pull rod (19), then the wedge-shaped clamping plates (12) continue to drive the concrete envelope (1) to move downwards, after the wedge-shaped clamping plates (12) move to be attached to the ground, a worker manually pulls the L-shaped pull rod (19) leftwards, the L-shaped pull rod can drive the first limiting rod (18) to move leftwards together until the first limiting rod (18) moves out of the first limiting hole (17), after the limitation of the first limiting rod (18) is lost, the concrete envelope (1) can move back to back when the two wedge-shaped clamping plates (12) move under the action of self gravity, the wedge-shaped clamping plates (12) can drive the sliding block (13) to slide outwards on the first sliding plate (14) until the concrete envelope (1) slides to the bottom surface from between the two wedge-shaped clamping plates (12), and the concrete envelope (1) is dropped to the installation position, and the installation of the concrete envelope (1) is completed.

Technical Field

The invention relates to the technical field of cable protection pipes, in particular to an assembled cable protection pipe and a grounding method thereof.

Background

The cable protection pipe is a metal protection pipe which is laid on the outer layer of the cable and has certain mechanical strength in order to prevent the cable from being damaged. The cable protection pipe is mainly installed in a section where the communication cable and the power line are crossed, so that the short circuit accident caused by the disconnection of the power line is prevented, the communication cable and the steel wire rope are electrified, the cable, the switch and the machine core board are protected, the whole machine is not burnt out, and a certain isolation effect is achieved on the magnetic field interference of the power line.

The cable protection pipe in the prior art is usually a CPVC pipe, an MPP pipe and a glass steel pipe, and the cable protection pipe is usually spliced together by arranging a plurality of cable protection pipes in a row when in use, then is integrally placed into an installation station, and then is encapsulated, the pipeline laying method has poor bearing capacity, the cable protection pipe is very easy to break when the region above the cable protection pipe is subjected to large external force action in the subsequent use process, the cable is damaged due to deformation, the power supply is interrupted, the pipeline is blocked and cannot be used, the pipeline is easy to break when the pipe is carried secondarily and the external force action is carried out due to low strength of the material, the pipeline is easy to break and the like, great waste exists, and the loss rate reaches 3-5 percent.

Based on the above, the invention designs the fabricated cable protection tube and the grounding method thereof to solve the above problems.

Disclosure of Invention

The object of the present invention is to provide a fabricated cable protection tube and a grounding method thereof, which can solve the problems of the prior art cable protection tubes, which are usually CPVC tube, MPP tube, FRP tube, and the cable protection pipe is usually spliced together by arranging a plurality of cable protection pipes in a row when in use, then the whole body is put into an installation station, and the cable protection pipe is encapsulated, the pressure bearing capacity of the pipeline is poor, the cable protection pipe is easy to break and deform when the area above the cable protection pipe is subjected to large external force in the subsequent use process, the cable is damaged and the power supply is interrupted, the pipeline is blocked and the pipeline cannot be used, and the material strength is low, the problems of large waste and high loss rate of 3-5% exist when the pipe is carried for the second time and the pipe is easy to be broken under the action of other external forces.

In order to achieve the purpose, the invention provides the following technical scheme: assembled cable protection pipe, including concrete package, a plurality of framework of steel reinforcement one and a plurality of framework of steel reinforcement two, framework of steel reinforcement one and framework of steel reinforcement two are used for pouring formation concrete and seal, and framework of steel reinforcement one and framework of steel reinforcement two number of same, framework of steel reinforcement one is the U type, framework of steel reinforcement two is "one" font, and is a plurality of framework of steel reinforcement one is arranged along the horizontal direction array and is used for accomplishing the pouring of concrete package upper portion, and is a plurality of framework of steel reinforcement two also arranges and is located respectively a plurality of framework of steel reinforcement bottom one side and is used for accomplishing the pouring of concrete package lower part, the pouring of concrete package upper portion carries out the pouring of concrete package lower part again after accomplishing, concrete package upper portion still is equipped with the through-hole that is used for placing the cable.

As a further scheme of the invention, the through holes are also fixedly connected with cable penetrating pipes, the right ends of the cable penetrating pipes are all positioned and extend to the outer side of the concrete envelope, the left ends of the cable penetrating pipes are all positioned inside the concrete envelope, and the distance from the right ends of the cable penetrating pipes to the right side wall of the concrete envelope is equal to the distance from the left ends of the cable penetrating pipes to the left side wall of the concrete envelope.

As a further scheme of the invention, the left ends of the through holes are provided with bearing guide grooves.

As a further scheme of the invention, the left end and the right end of the second steel bar framework are fixedly connected with grounding screws, and the two grounding screws are connected through a grounding wire.

As a further scheme of the invention, the concrete package is made of a heat insulation material with the thermal conductivity coefficient of less than or equal to 0.14W/(m.K).

As a further scheme of the invention, the top surface of the concrete encapsulation is provided with a warning mark.

As a further scheme of the invention, a butt joint groove is arranged at the right end of the concrete encapsulation, the right side wall of the butt joint groove and the right side wall of the cable penetrating pipe are positioned on the same horizontal plane, and a guide inclined plane is arranged at the left end of the concrete encapsulation.

A method for grounding a fabricated cable protection tube, the method comprising the steps of:

the method comprises the following steps: placing the concrete envelope on the grounding device;

step two: causing the grounding device to transport the concrete envelope to a construction site;

step three: and (4) dismounting the grounding device, and conveying the next concrete package to the construction position by the grounding device to finish the conveying work of the cable protection pipe.

As a further scheme of the invention, the grounding device comprises two wedge-shaped clamping plates, the two wedge-shaped clamping plates are symmetrically arranged about the concrete envelope and are used for clamping the concrete envelope, sliding blocks are fixedly connected to the outer side walls of the two wedge-shaped clamping plates, vertically arranged first sliding plates are slidably connected to the outer walls of the two sliding blocks, a fixed plate is fixedly connected to the tops of the two first sliding plates together, first springs for resetting the wedge-shaped clamping plates are sleeved on the sliding blocks, first limiting holes are formed in the outer walls of the sliding blocks, first limiting rods for limiting the sliding of the sliding blocks are inserted into the first limiting holes, L-shaped pull rods are slidably connected to the outer walls of the first limiting rods in the front-back direction, second limiting holes are formed in the side walls of the L-shaped pull rods, and second limiting rods are inserted into the second limiting holes, the second limiting rod is connected inside the wedge-shaped clamping plate in a sliding mode, a probe rod which is vertically arranged and used for driving the second limiting rod to be separated from the second limiting hole is arranged on the side edge of the second limiting rod, and the probe rod is connected to the bottom of the wedge-shaped clamping plate in a sliding mode in the vertical direction.

As a further scheme of the invention, mounting grooves are formed in the inclined walls of the wedge-shaped clamping plates, and a first mounting frame and a second mounting frame which are distributed left and right are connected in the mounting grooves in a sliding manner; the inner wall of the first mounting frame is rotatably connected with a plurality of first conveying rollers which are distributed in an array manner and are transversely arranged, the bottom of the first mounting frame is rotatably connected with a plurality of supporting columns, and the bottom ends of the supporting columns are rotatably connected with a second sliding plate together; the second sliding plate is connected to the bottom of the inner wall of the mounting groove in a sliding manner, a second spring for resetting the second sliding plate is fixedly connected to the side wall of the second sliding plate, a driving inclined surface is formed in the second sliding plate and is positioned on the side edge of the second limiting rod, and the second limiting rod can drive the second sliding plate to slide by extruding the driving inclined surface; all rotate on the second installing frame inner wall and be connected with a plurality of second conveying rollers that are the array distribution and be vertical arrangement, the bottom fixedly connected with of second installing frame is in tensile state's third spring, and sliding connection has the push rod on the diapire of second installing frame, the bottom of push rod is located the top of L shape pull rod, and the second inclined plane has been seted up to the bottom of push rod.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the cable-penetrating pipe, the first reinforcing steel bar framework and the second reinforcing steel bar framework are poured into a whole through the concrete material with the heat conductivity coefficient of not more than 0.14W/(m.K), so that the areas between the cable-penetrating pipe and the cable-penetrating pipe are all heat-insulating materials, the cable in the adjacent cable-penetrating pipe cannot be burnt after the cable in one cable-penetrating pipe is spontaneously combusted, the difficulty in maintenance can be reduced, and the loss caused by spontaneous combustion of the cable can be reduced to the minimum; when the cable protection pipe is receiving great external force, the concrete is sealed, the external force that receives can be shared to framework one and framework two, can reduce the effort of threading cable pipe greatly, the compressive capacity of can greatly increased body, the destruction moment of flexure that can greatly increase the threading cable pipe simultaneously, can make the cable obtain better protection, and the cable protection pipe when the installation, only need with cable protection pipe hoist to the construction position can, in time need install a plurality of cable protection pipes also only need make cable protection pipe two liang of butt joints can, the process is few, the installation is simple, can improve the efficiency of on-the-spot installation construction.

2. The upper part and the lower part are respectively molded, so that the performance of the integral structure can be still maintained under the condition that the first reinforcement framework and the second reinforcement framework are not directly connected, the framework does not form a complete framework, and a loop formed by the framework is damaged, so that the change of the magnetic flux of the loop is reduced, the induced current is reduced, the effect of avoiding eddy current is achieved, and the interference of a power line magnetic field on a cable can be better reduced.

3. According to the invention, the two ends of the steel reinforcement framework II are fixedly connected with the grounding screws, so that when two cable protection pipes are butted, two adjacent grounding screws are connected through the grounding wire, and the whole-course protection of the cable protection pipes can be realized.

4. The invention can lead the wedge-shaped splint to clamp the concrete envelope through the inclined plane by arranging the wedge-shaped splint, the first limit rod, the L-shaped pull rod, the second limit rod and the probe rod, lead the second limit rod to cancel the limit of the L-shaped pull rod after the wedge-shaped splint moves downwards to be contacted with the ground, lead the L-shaped pull rod to be pulled outwards after a worker adjusts the position of the concrete envelope, lead the L-shaped pull rod to drive the first limit rod to move, lead the first limit rod to cancel the limit of the sliding block, lead the concrete envelope to drive the two wedge-shaped splints to move back to back under the action of gravity, lead the concrete envelope to automatically fall to the installation position, lead the concrete envelope to be in a suspension state when reaching the installation position, lead the worker to more easily adjust the concrete envelope, after the position of the concrete enclosure is adjusted, the concrete enclosure can automatically fall to the ground of the mounting position only by pulling out the L-shaped pull rod, the operation is simple, workers can know when the concrete enclosure falls to the ground, and the workers can be prevented from being injured by the concrete enclosure.

5. The invention can lead the first conveying roller and the second conveying roller to play a supporting role for the concrete encapsulation when the concrete encapsulation moves downwards on the wedge-shaped clamping plate through the arrangement of the first mounting frame, the second mounting frame, the first conveying roller and the second conveying roller, when the concrete encapsulation moves to the mounting position, the second limiting rod moves to lead the first mounting plate and the first conveying roller to move towards the inner side of the mounting groove, so that the first conveying roller which is transversely arranged is not attached to the concrete encapsulation any more, then when a worker adjusts the transverse position of the concrete encapsulation, the concrete encapsulation can slide on the surface of the second conveying roller which is vertically arranged, the friction force which is born by the concrete encapsulation when moving can be greatly reduced through the rotation of the second conveying roller, the worker can adjust the concrete encapsulation more easily, when the worker pulls out the L-shaped pull rod to limit the sliding block after the adjustment is finished, make the inboard of the first installing frame of second installing frame automatic sliding to the mounting groove under the effect of third spring elasticity, make the second conveying roller move the inboard of first conveying roller, make vertical arrangement's second conveying roller no longer to the concrete envelope play limiting displacement, then the concrete envelope is when falling downwards, can make the concrete envelope roll the tenesmus on first conveying roller surface, can make the concrete envelope more smooth and easy when following wedge splint to the landing, can avoid the concrete envelope to produce great friction on the inner wall of wedge splint, can avoid the friction too big and lead to the fact the injury to the concrete envelope.

Drawings

FIG. 1 is a flow chart of the method of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the present invention;

FIG. 3 is a schematic diagram of the general structure of the present invention (viewed from left to right);

FIG. 4 is a schematic view of the first and second arrangements of the first and second reinforcing bars of the present invention;

FIG. 5 is a cross-sectional view of the butt joint and a schematic view of the connection between two adjacent ground screws 7 during the butt joint according to the present invention;

FIG. 6 is a schematic view of the grounding device according to the present invention;

FIG. 7 is a schematic view of the overall structure of the grounding device of the present invention;

FIG. 8 is a schematic sectional view of the position relationship and connection relationship of the wedge-shaped clamp plate, the probe rod, the second limit rod, the L-shaped pull rod, the first limit rod, the slide block and the push rod according to the present invention;

FIG. 9 is a schematic view of the position relationship and connection relationship between the L-shaped pull rod and the second position-limiting rod, the probe rod and the push rod according to the present invention;

FIG. 10 is a schematic view of the structure of the L-shaped pull rod of the present invention;

FIG. 11 is a schematic sectional view showing the positional relationship and connection relationship between the wedge clamp plate and the first mounting frame according to the present invention;

fig. 12 is a front view in the state of fig. 11;

FIG. 13 is a schematic sectional front view showing the positional relationship and connection relationship between the wedge clamp plate and the second mounting frame according to the present invention;

FIG. 14 is a schematic view of a second stop lever according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the concrete packaging device comprises a concrete packaging 1, a first steel reinforcement framework 2, a second steel reinforcement framework 3, a through hole 4, a cable penetrating pipe 5, a receiving guide groove 6, a grounding screw 7, a grounding wire 8, a warning mark 9, a butt joint groove 10, a guide inclined plane 11, a wedge-shaped clamping plate 12, a sliding block 13, a first sliding plate 14, a fixing plate 15, a first spring 16, a first limiting hole 17, a first limiting rod 18, an L-shaped pull rod 19, a second limiting hole 20, a second limiting rod 21, a probe rod 22, a mounting groove 23, a first mounting frame 24, a second mounting frame 25, a first conveying roller 26, a supporting column 27, a second sliding plate 28, a second spring 29, a driving inclined plane 30, a second conveying roller 31, a third spring 32, a push rod 33 and a second inclined plane 34.

Detailed Description

Referring to fig. 1-4, the fabricated cable protection tube includes a concrete envelope 1, a plurality of first steel frameworks 2 and a plurality of second steel frameworks 3, the first steel frameworks 2 and the second steel frameworks 3 are used for casting to form the concrete envelope 1, the number of the first steel bar framework 2 is the same as that of the second steel bar framework 3, the first steel bar framework 2 is U-shaped, the second steel bar frameworks 3 are in a straight shape, a plurality of the first steel bar frameworks 2 are arranged in an array along the horizontal direction and are used for completing the pouring of the upper part of the concrete envelope 1, a plurality of the second steel bar frameworks 3 are also arranged in an array along the horizontal direction and are respectively positioned at one side of the bottoms of the first steel bar frameworks 2 and are used for completing the pouring of the lower part of the concrete envelope 1, pouring the lower part of the concrete encapsulation 1 after the pouring of the upper part of the concrete encapsulation 1 is finished, wherein the upper part of the concrete encapsulation 1 is also provided with a through hole 4 for placing a cable; the through hole 4 is also fixedly connected with a cable penetrating pipe 5, the right ends of the cable penetrating pipes 5 are all positioned outside the concrete envelope 1, the left ends of the cable penetrating pipes 5 are all positioned inside the concrete envelope 1, and the distance from the right ends of the cable penetrating pipes 5 to the right side wall of the concrete envelope 1 is equal to the distance from the left ends of the cable penetrating pipes 5 to the left side wall of the concrete envelope 1; the left ends of the through holes 4 are provided with bearing guide grooves 6; the left end and the right end of the second steel bar framework 3 are fixedly connected with grounding screw rods 7, and the two grounding screw rods 7 are connected through a grounding wire 8; the concrete package 1 is made of a heat insulation material with the heat conductivity coefficient of less than or equal to 0.14W/(m.K).

When the scheme is put into practical application, a plurality of first steel bar frameworks 2 and 8 (6+2) cable penetrating pipes 5 are placed in a casting mould, the upper parts of the products are cast by adopting a heat insulation material with the heat conductivity coefficient of less than or equal to 0.14W/(m.K), after the upper parts are formed, a plurality of second steel bar frameworks 3 are placed at the bottom parts of the mould for fixing, meanwhile, two ends of the second steel bar frameworks 3 are respectively fixed with a grounding screw 7, then, the bottom parts of the products are cast, meanwhile, the grounding screws 7 are leaked outside, after the bottom parts are also formed, an assembly type cable protection pipe shown in figure 2 is formed, through respectively forming the upper parts and the lower parts of the concrete envelopes 1, the formed concrete envelopes are in an isosceles trapezoid shape with a narrow upper part and a wide lower part, so that the concrete envelopes 1, the first steel bar frameworks 2, the second steel bar frameworks 3 and a plurality of cable penetrating pipes 5 form a whole, the area between the cable penetrating pipe 5 and the cable penetrating pipe 5 is made of heat insulating materials, so that the cable in one cable penetrating pipe 5 cannot be burnt after spontaneous combustion, the difficulty in maintenance can be reduced, the loss caused by spontaneous combustion of the cable can be reduced to the minimum, when the cable protection pipe is subjected to a large external force, the concrete envelope 1, the first reinforcement framework 2 and the second reinforcement framework 3 can share the external force, the acting force of the cable penetrating pipe 5 can be greatly reduced, the pressure resistance of the pipe body can be greatly improved, and meanwhile, because the damage bending moment of the concrete envelope 1, the first reinforcement framework 2 and the second reinforcement framework 3 is far greater than that of the cable penetrating pipe 5, the concrete envelope 1 can be enabled to be used only when the external damage bending moment is far greater than that of the concrete envelope 1, the first reinforcement framework 2 and the second reinforcement framework 3, The first steel bar framework 2 and the second steel bar framework 3 drive the cable penetrating pipe 5 to be bent and damaged together, so that the damage bending moment of the cable penetrating pipe 5 can be greatly increased; when the cable protection pipe is used, the concrete envelope 1 is only required to be transported to a construction position, then the concrete envelope 1 and the cable penetrating pipe 5 are only required to be integrally placed into a construction pit hole to complete installation, when two or more cable protection pipes are required, the two concrete envelopes 1 are only required to be placed on the same horizontal plane, then the two adjacent grounding screws 7 are connected through the external grounding wire 8, so that the cable protection pipe can achieve whole-course protection (as shown in figure 5), then one of the concrete envelopes 1 is pushed to enable the cable penetrating pipe to be inserted into the through hole 4 of the other concrete envelope 1 through the bearing guide groove 6, after the adjacent side walls of the two concrete envelopes 1 are completely attached, the two adjacent cable penetrating pipes in the same horizontal plane can also be attached together, the field installation work can be greatly reduced, and the outdoor installation and construction efficiency can be improved, and when actually manufacturing, the splicing gap of the two cable protection pipes is set to be 2cm, the reserved connection length of the cable penetrating pipe 5 is 6cm, and the butt joint end is a socket guide groove 6 which enlarges 2cm, so that the actual connection of inner holes of the pipelines can be realized during butt joint, and the cable penetrating difficulty and the damage risk of the cable are greatly reduced.

Referring to fig. 1-2, a warning mark 9 is disposed on the top surface of the concrete envelope 1; through the setting of warning sign 9 of "having the cable" down, the staff can discern the landfill position of cable protection pipe when can making the secondary excavation, can avoid causing the destruction to the cable protection pipe.

Referring to fig. 1, 2 and 4, a butt-joint groove 10 is formed at the right end of the concrete enclosure 1, the right side wall of the butt-joint groove 10 and the right side wall of the cable penetrating pipe 5 are located on the same horizontal plane, and a guide inclined plane 11 is formed at the left end of the concrete enclosure 1; by the arrangement of the butt joint groove 10 and the guide inclined plane 11, the two concrete packages 1 can be butted more accurately and conveniently.

A method for grounding a fabricated cable protection tube, the method comprising the steps of:

the method comprises the following steps: placing the concrete envelope 1 on the grounding device;

step two: the grounding device is made to convey the concrete envelope 1 to the construction site;

step three: and (4) dismounting the grounding device, and enabling the grounding device to convey the next concrete envelope 1 to the construction position, so as to finish the conveying work of the cable protection pipe.

Referring to fig. 5-10 and 14, the grounding device includes two wedge-shaped clamping plates 12, the two wedge-shaped clamping plates 12 are symmetrically arranged with respect to the concrete envelope 1, the two wedge-shaped clamping plates 12 are used for clamping the concrete envelope 1, sliding blocks 13 are fixedly connected to outer side walls of the two wedge-shaped clamping plates 12, vertically arranged first sliding plates 14 are slidably connected to outer walls of the two sliding blocks 13, a fixing plate 15 is fixedly connected to tops of the two first sliding plates 14, first springs 16 for resetting the wedge-shaped clamping plates 12 are sleeved on the sliding blocks 13, first limiting holes 17 are formed in outer walls of the sliding blocks 13, first limiting rods 18 for limiting the sliding of the sliding blocks 13 are inserted into the first limiting holes 17, L-shaped pull rods 19 are slidably connected to outer walls of the first limiting rods 18 in the front-rear direction, second limiting holes 20 are formed in side walls of the L-shaped pull rods 19, a second limiting rod 21 is inserted into each second limiting hole 20, the second limiting rods 21 are slidably connected inside the wedge-shaped clamping plate 12, probe rods 22 which are vertically arranged and used for driving the second limiting rods 21 to be separated from the second limiting holes 20 are arranged on the side edges of the second limiting rods 21, and the probe rods 22 are slidably connected to the bottom of the wedge-shaped clamping plate 12 in the vertical direction; when a cable protection tube needs to be installed, the concrete envelope 1 is placed above the inclined planes of the two wedge-shaped clamping plates 12, so that the two wedge-shaped clamping plates 12 support the concrete envelope 1, then the external linear driving mechanism is used for driving the fixing plate 15 to move downwards, the fixing plate 15 can drive the two first sliding plates 14 to move downwards together, the two first sliding plates 14 can drive the two wedge-shaped clamping plates 12 to move downwards synchronously through the two sliding blocks 13, the two wedge-shaped clamping plates 12 can drive the concrete envelope 1 to move downwards together, when the concrete envelope 1 is close to the ground, the probe 22 at the bottom of the wedge-shaped clamping plates 14 is firstly contacted with the bottom surface, then the probe 22 can move towards the inside of the wedge-shaped clamping plates 14, the probe 22 can drive the second limiting rod 21 to move through the inclined planes, so that the second limiting rod 21 slowly slides out of the second limiting hole 20, and the second limiting rod 21 no longer has a limiting effect on the L-shaped pull rod 19, then wedge splint 12 continues to drive concrete envelope 1 and moves down, treat that wedge splint 12 moves to and laminate with ground after, the staff manually pulls L shape pull rod 19 left, L shape pull rod can drive first gag lever post 18 and move left together, until first gag lever post 18 shifts out outside first spacing hole 17, lose the spacing back of first gag lever post 18 this moment, two wedge splint 12 of back-to-back removal when concrete envelope 1 can be under the effect of self gravity, wedge splint 12 can drive slider 13 and slide to the outside on first slide 14, until concrete envelope 1 from two wedge splint 12 between the bottom surface that slide, make concrete envelope 1 drop to the mounted position, accomplish the installation of concrete envelope 1.

Referring to fig. 11 to 14, the inclined walls of the wedge-shaped clamping plate 12 are respectively provided with mounting grooves 23, and the mounting grooves 23 are respectively connected with a first mounting frame 24 and a second mounting frame 25 which are distributed left and right in a sliding manner; a plurality of first conveying rollers 26 which are distributed in an array manner and are transversely arranged are rotatably connected to the inner wall of the first mounting frame 24, a plurality of supporting columns 27 are rotatably connected to the bottom of the first mounting frame 24, and the bottom ends of the supporting columns 27 are rotatably connected with a second sliding plate 28 together; the second sliding plate 28 is slidably connected to the bottom of the inner wall of the mounting groove 23, the side walls of the second sliding plate 28 are fixedly connected with second springs 29 for resetting the second sliding plate 28, the second sliding plate 28 is provided with a driving inclined surface 30, the driving inclined surface 30 is located on the side edge of the second limiting rod 21, and the second limiting rod 21 can drive the second sliding plate 28 to slide by extruding the driving inclined surface 30; a plurality of second conveying rollers 31 which are distributed in an array manner and are vertically arranged are rotatably connected to the inner wall of the second mounting frame 25, a third spring 32 in a stretching state is fixedly connected to the bottom of the second mounting frame 25, a push rod 33 is slidably connected to the bottom wall of the second mounting frame 23, the bottom end of the push rod 33 is located at the top of the L-shaped pull rod 19, and a second inclined surface 34 is formed at the bottom end of the push rod 33; when the two wedge-shaped clamping plates 12 drive the concrete envelope 1 to move downwards, the side walls of the concrete envelope 1 can be attached to the surfaces of a plurality of first conveying rollers 26 arranged transversely and a plurality of second conveying rollers 31 arranged vertically, the initial positions of the first conveying rollers 26 and the second conveying rollers 31 in different directions are located on the same horizontal plane, the first conveying rollers 26 and the second conveying rollers 31 can support the concrete envelope and cannot be driven to rotate by the concrete envelope 1, when the concrete envelope 1 moves to the installation position, the probe 22 can move upwards under the action of the gravity of the ground and the concrete envelope 1, the probe 22 can drive the second limiting rod 21 to move towards the installation groove 23, the second limiting rod 21 can drive the inclined plane 30 to enable the second sliding plate 28 to move downwards in the installation groove, the second sliding plate 28 can drive the bottom ends of the plurality of supporting columns 27 to move together, the top ends of the supporting columns 27 can drive the first installation frame 24 to move towards the inner side of the installation groove 23 in the installation groove 23, the first installation frame 24 can drive the first conveying roller 26 to move together, so that the first conveying roller 26 is not attached to the concrete envelope 1, then the concrete envelope 1 can move to the installation position, when a worker adjusts the left and right positions of the concrete envelope 1, the concrete envelope 1 can roll on the surface of the second conveying roller 31, the friction force applied to the concrete envelope 1 during moving can be greatly reduced through the rotation of the second conveying roller 31, the worker can adjust the concrete envelope 1 more easily, after the adjustment is completed, the worker can pull the L-shaped pull rod outwards, the L-shaped pull rod drives the first limiting rod 18 to move to cancel limiting of the sliding block 13, after the L-shaped pull rod moves outwards to be staggered with the push rod 33, the second installation frame 25 can move towards the inner side of the installation groove 23 under the action of the contraction elastic force of the third spring 32, the second installation frame 25 can drive the second conveying roller 31 to move to the inner side of the first conveying roller 26, after that, the first conveying roller 26 replaces the second conveying roller 31 to support the concrete envelope 1, after the first limiting rod 18 moves out of the first limiting hole 17, the concrete envelope 1 can fall downwards from the first conveying roller 26 under the action of gravity, so that the concrete envelope 1 can more smoothly slide down from the wedge-shaped clamping plate 12, the concrete envelope 1 can be prevented from generating larger friction on the inner wall of the wedge-shaped clamping plate 12, and the damage to the concrete envelope 1 caused by the overlarge friction can be avoided.

The working principle is as follows: placing 2 and 8 (6+2) cable penetrating pipes 5 of a first reinforcement framework into a casting mold, casting the upper part of the product by adopting a heat insulation material with the heat conductivity coefficient of less than or equal to 0.14W/(m.K), placing a second reinforcement framework 3 into the bottom of the mold for fixing after the upper part is molded, fixing a grounding screw 7 at two ends of the reinforcement framework 3, then casting the bottom of the product, simultaneously leaking the grounding screw 7 outside, forming an assembled cable protection pipe as shown in figure 1 after the bottom is molded, respectively molding the upper part and the lower part of a concrete package 1, wherein the molded concrete package is in an isosceles trapezoid shape with a narrow upper part and a wide lower part, so that the concrete package 1, the first reinforcement framework 2, the second reinforcement framework 3 and a plurality of cable penetrating pipes 5 form a whole, and the areas between the cable penetrating pipes 5 are all the heat insulation material, the cable protection tube can ensure that after a cable in one cable penetrating tube 5 is spontaneously combusted, the combustion of the cable in the adjacent cable penetrating tube 5 cannot be caused, the difficulty in maintenance can be reduced, the loss caused by the spontaneous combustion of the cable can be reduced to the minimum, when the cable protection tube is subjected to a large external force, the concrete envelope 1, the first reinforcement framework 2 and the second reinforcement framework 3 can share the external force, the acting force of the cable penetrating tube 5 can be greatly reduced, the pressure resistance of the tube body can be greatly improved, and meanwhile, because the damage bending moment of the concrete envelope 1, the first reinforcement framework 2 and the second reinforcement framework 3 is far greater than that of the cable penetrating tube 5, the concrete envelope 1, the first reinforcement framework 2 and the second reinforcement framework 3 can drive the cable penetrating tube 5 to be bent and damaged together only when the external damage bending moment is far greater than that of the concrete envelope 1, the first reinforcement framework 2 and the second reinforcement framework 3, the breaking bending moment of the cable penetrating pipe 5 can be greatly increased; when the cable protection pipe is used, the concrete envelope 1 is only required to be transported to a construction position, then the concrete envelope 1 and the cable penetrating pipe 5 are only required to be integrally placed into a construction pit hole to complete installation, when two or more cable protection pipes are required, the two concrete envelopes 1 are only required to be placed on the same horizontal plane, then the two adjacent grounding screws 7 are connected through the external grounding wire 8, so that the cable protection pipe can achieve whole-course protection, then one of the concrete envelopes 1 is pushed to enable the cable penetrating pipe to be inserted into the through hole 4 of the other concrete envelope 1 through the bearing guide groove 6, after the adjacent side walls of the two concrete envelopes 1 are completely attached, the two adjacent cable penetrating pipes in the same horizontal plane can also be attached together, the field installation work can be greatly reduced, and the outdoor installation and construction efficiency can be improved, and when actually manufacturing, the splicing gap of the two cable protection pipes is set to be 2cm, the reserved connection length of the cable penetrating pipe 5 is 6cm, and the butt joint end is a socket guide groove 6 which enlarges 2cm, so that the actual connection of inner holes of the pipelines can be realized during butt joint, and the cable penetrating difficulty and the damage risk of the cable are greatly reduced.