CN113572092B - Assembled cable protection pipe and grounding method thereof - Google Patents
Assembled cable protection pipe and grounding method thereof Download PDFInfo
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- CN113572092B CN113572092B CN202110812936.4A CN202110812936A CN113572092B CN 113572092 B CN113572092 B CN 113572092B CN 202110812936 A CN202110812936 A CN 202110812936A CN 113572092 B CN113572092 B CN 113572092B
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- 238000000034 method Methods 0.000 title claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 238000005538 encapsulation Methods 0.000 claims abstract description 38
- 230000002787 reinforcement Effects 0.000 claims description 48
- 230000000149 penetrating effect Effects 0.000 claims description 47
- 238000009434 installation Methods 0.000 claims description 26
- 238000010276 construction Methods 0.000 claims description 14
- 210000001503 joint Anatomy 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000006378 damage Effects 0.000 description 11
- 239000000523 sample Substances 0.000 description 10
- 238000005452 bending Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 241001391944 Commicarpus scandens Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 230000002269 spontaneous effect Effects 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004801 Chlorinated PVC Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G3/0608—Joints for connecting non cylindrical conduits, e.g. channels
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses an assembled cable protection pipe, which comprises a concrete encapsulation, 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 encapsulation; the invention can greatly increase the strength of the cable protection pipe, can better protect the cable and is convenient to install.
Description
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 solves the problems of the prior art cable protection tubes, which are usually CPVC tube, MPP tube, glass fiber reinforced plastic tube, and the cable protection pipe is usually spliced together by arranging a plurality of cable protection pipes in a row when in use, the laying method has poor pressure bearing capacity of the pipeline, 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 using 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: the assembly type cable protection pipe comprises a concrete encapsulation part, a plurality of first steel reinforcement skeletons and a plurality of second steel reinforcement skeletons, wherein the first steel reinforcement skeletons and the second steel reinforcement skeletons are used for pouring to form the concrete encapsulation part, the number of the first steel reinforcement skeletons is the same as that of the second steel reinforcement skeletons, the first steel reinforcement skeletons are in a shape like a Chinese character 'yi', the first steel reinforcement skeletons are arranged along the horizontal direction in an array mode and are used for pouring the upper part of the concrete encapsulation part, the second steel reinforcement skeletons are also arranged along the horizontal direction in an array mode and are respectively located on one side of the bottoms of the first steel reinforcement skeletons and are used for pouring the lower part of the concrete encapsulation part, the lower part of the concrete encapsulation part is poured after the pouring of the upper part of the concrete encapsulation part is finished, and the upper part of the concrete encapsulation part is also provided with a through hole for placing a 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 steel reinforcement framework II 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, second springs for resetting the second sliding plate are fixedly connected to the side walls 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 enable the wedge-shaped splint to clamp the concrete envelope through the inclined plane through the arrangement of the wedge-shaped splint, the first limiting rod, the L-shaped pull rod, the second limiting rod and the probe rod, the concrete envelope can be driven by the fixing plate to stably fall, after the wedge-shaped splint moves downwards to be contacted with the ground, the probe rod can enable the second limiting rod to cancel the limiting of the L-shaped pull rod, after a worker adjusts the position of the concrete envelope, the L-shaped pull rod can be pulled outwards, the L-shaped pull rod drives the first limiting rod to move, the first limiting rod cancels the limiting of the sliding block, then the concrete envelope can drive the two wedge-shaped splints to move back to back under the action of gravity, and then the concrete envelope can automatically fall to the installation position, the invention can enable the concrete envelope to be in a suspended state when reaching the installation position, and can enable the worker to adjust the concrete envelope more easily, after the position of the concrete enclosure is adjusted, the L-shaped pull rod is pulled out, so that the concrete enclosure can automatically fall to the ground of the mounting position, 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 reinforcement cage halves;
FIG. 5 is a 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 feeler lever, the second limit lever, the L-shaped pull rod, the first limit lever, the slider 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-shaped 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 envelope 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 insulating material with the heat conductivity coefficient not more than 0.14W/(m.K), after the upper parts are formed, a plurality of second steel bar frameworks 3 are placed at the bottom of the mould for fixing, meanwhile, both ends of the second steel bar frameworks 3 are respectively fixed with a grounding screw 7, then the bottom of the products are cast, meanwhile, the grounding screws 7 are leaked outside, after the bottom parts are formed, an assembly type cable protection pipe shown in figure 2 is formed, through respectively forming the upper part and the lower part of a concrete envelope 1, the formed concrete envelope is in an isosceles trapezoid shape with narrow upper part and wide lower part, the concrete envelope 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 landfill position that can make staff can discern the cable protection pipe during 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 enabled to convey the concrete envelope 1 to a construction position;
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 the cable protection tube needs to be installed, the concrete encapsulation 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 encapsulation 1, then the external linear driving mechanism is utilized to drive the fixing plate 15 to move downwards, the fixing plate 15 drives the two first sliding plates 14 to move downwards together, the two first sliding plates 14 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 drive the concrete encapsulation 1 to move downwards together, when the concrete encapsulation 1 is close to the ground, the feeler lever 22 at the bottom of the wedge-shaped clamping plates 14 is firstly contacted with the bottom surface, then the feeler lever 22 moves towards the inside of the wedge-shaped clamping plates 14, the feeler lever 22 drives 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 does not limit the L-shaped pull rod 19 any more, 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 any more, 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 movement 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 the limiting of the sliding block 13, after the L-shaped pull rod moves outwards and is 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 elasticity 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 is enlarged by 2cm, so that the real connection of inner holes of the pipes can be realized during butt joint, and the cable penetrating difficulty and the damage risk of the cable are greatly reduced.
Claims (9)
1. Method for earthing a fabricated cable protection tube, 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: the grounding device is disassembled, and the next concrete envelope (1) is conveyed to the construction position by the grounding device, so that the conveying work of the cable protection pipe is completed;
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 walls of the L-shaped pull rods (19), second limiting rods (21) are inserted into the second limiting holes (20) in a sliding mode and are connected to the interior of the wedge-shaped clamping plate (12) in a sliding mode, feeler levers (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 feeler levers (22) are connected to the bottom of the wedge-shaped clamping plate (12) in a sliding mode in the vertical direction.
2. The grounding method of a fabricated cable protection tube according to claim 1, 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 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 jointly rotatably connected with a second sliding plate (28); 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).
3. The grounding method of a fabricated cable protection tube according to claim 1, wherein: when a cable protection pipe needs to be installed, a concrete encapsulation (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 encapsulation (1), then an external linear driving mechanism is utilized to drive 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 encapsulation (1) to move downwards together, when the concrete encapsulation (1) is close to the ground, the feeler levers (22) at the bottoms of the wedge-shaped clamping plates (14) can be in contact with the bottom surface firstly, then the feeler levers (22) can move towards the insides of the wedge-shaped clamping plates (14), and the feeler levers (22) can drive the second limiting levers (21) to move through the inclined planes, 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), at the moment, after the limitation of the first limiting rod (18) is lost, the concrete envelope (1) can enable the two wedge-shaped clamping plates (12) to move back to back 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.
4. The grounding method of a fabricated cable protection tube according to claim 1, wherein: the cable protection pipe comprises 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 mode along the horizontal direction and used for pouring the upper part of the concrete envelope (1), the plurality of second steel reinforcement frameworks (3) are also arranged in an array mode along the horizontal direction and respectively located on one side of the bottoms of the plurality of first steel reinforcement frameworks (2) and used for pouring the lower part of the concrete envelope (1), and pouring of the lower part of the concrete envelope (1) is carried out after pouring of the upper part of the concrete envelope (1), the upper part of the concrete envelope (1) is also provided with a through hole (4) for placing a cable.
5. The grounding method of a fabricated cable protection tube according to claim 4, 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).
6. The grounding method of a fabricated cable protection tube according to claim 5, wherein: and the left ends of the through holes (4) are provided with bearing guide grooves (6).
7. The grounding method of a fabricated cable protection tube according to claim 6, 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).
8. The grounding method of a fabricated cable protection tube according to claim 4, wherein: and the top surface of the concrete envelope (1) is provided with a warning mark (9).
9. The grounding method of a fabricated cable protection tube according to claim 4, 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).
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