CN112448356B - Method for paving cover plate on cable trench - Google Patents

Method for paving cover plate on cable trench Download PDF

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Publication number
CN112448356B
CN112448356B CN202011266206.0A CN202011266206A CN112448356B CN 112448356 B CN112448356 B CN 112448356B CN 202011266206 A CN202011266206 A CN 202011266206A CN 112448356 B CN112448356 B CN 112448356B
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CN
China
Prior art keywords
cover plate
hopper
paving
plate
laying
Prior art date
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Active
Application number
CN202011266206.0A
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Chinese (zh)
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CN112448356A (en
Inventor
冯勋强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Shandong Electric Power Company Lijin Power Supply Co
State Grid Corp of China SGCC
Original Assignee
State Grid Shandong Electric Power Company Lijin Power Supply Co
State Grid Corp of China SGCC
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Application filed by State Grid Shandong Electric Power Company Lijin Power Supply Co, State Grid Corp of China SGCC filed Critical State Grid Shandong Electric Power Company Lijin Power Supply Co
Priority to CN202011266206.0A priority Critical patent/CN112448356B/en
Publication of CN112448356A publication Critical patent/CN112448356A/en
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Publication of CN112448356B publication Critical patent/CN112448356B/en
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Classifications

    • 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
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
    • H02G9/025—Coverings therefor, e.g. tile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/22—Lifting frames, e.g. for lifting vehicles; Platform lifts with tiltable platforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • 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
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle

Abstract

The invention discloses a method for paving a cover plate on a cable trench, which is applied to a paving device, comprising a movable bottom plate, a paving trolley, a traction device, a hopper, a turnover bracket and a propelling device. In the laying process, firstly, putting the laminated cover plates into a hopper; the hopper is then turned forward 90 °; then the cover plate is pushed forward by the pushing device by the length of one cover plate, and the cover plate at the outermost end slides into the cover plate clamping groove; then the paving vehicle is pushed forward by utilizing the dynamic traction device, one end of the cover plate slides along the paving vehicle under the action of gravity, the other end of the cover plate vertically slides along the upright cover plate, and the paving vehicle is pushed continuously to separate the cover plate from the paving vehicle; and finally, the movable bottom plate is moved forwards and the flatbed is retracted. And (5) paving the next cover plate by repeating the steps 1-4. The invention greatly improves the laying efficiency and simultaneously greatly reduces the labor intensity of workers.

Description

Method for paving cover plate on cable trench
The invention relates to a division of a cable trench cover plate laying device, and the original application number is 202010303800.6.
Technical Field
The invention relates to the field of electric power construction tools, in particular to a method for paving a cover plate on a cable trench.
Background
Inside power facilities such as substations, power plants, etc., cable trenches are common places where cables are placed. The cable trench is the channel, and the cable cover plate covers the upper portion at the cable trench for guarantee the level and smooth and the inside cable of protection cable trench on ground. Therefore, the cable cover plate needs to be paved on the upper part of the cable trench, and the cable cover plate is often paved manually in the prior art, and because the cable cover plate needs to meet the requirements of a certain structural strength and the displacement of the cable cover plate, the cable cover plate is often designed to be heavier, and particularly, the cable cover plate is paved on the outdoor longer cable trench cover plate, so that a large amount of labor is consumed. Meanwhile, labor intensity is high, and efficiency is low. Therefore, the design of the cable trench cover plate laying device which is convenient to construct, time-saving and labor-saving is an urgent requirement.
Disclosure of Invention
The invention aims to solve the technical problems that: the method for paving the cover plate on the cable trench is convenient to construct, time-saving and labor-saving.
The technical scheme for solving the technical problems is as follows: a method of laying a cover plate over a cable trench, characterized by: a paving apparatus is applied, the paving apparatus comprising:
a movable bottom plate and a laying vehicle which are arranged side by side along the length direction of the cable trench;
traction devices arranged at two sides of the movable bottom plate and used for driving the paving vehicle to advance;
a hopper arranged on the movable bottom plate;
the overturning bracket is fixedly connected with the movable bottom plate and is rotationally connected with the hopper and used for overturning the hopper;
the pushing device is arranged at the upper part of the movable bottom plate and the lower part of the hopper and used for pushing out the cover plate;
the front side surface and the upper side surface of the hopper are open and communicated; the front direction points to the unpaved section of the cable duct; the left side and the right side of the hopper are provided with turnover pipes with pipe orifices facing backward, and turnover operation rods are inserted into the turnover pipes; the upper edge of the side surface of the rear part of the hopper is provided with a limiting device, and the limiting device is movably provided with a bulge facing the inner side of the hopper;
the paving vehicle comprises two sliding blocks, and clamping shafts with two ends rotatably connected with the sliding blocks, wherein cover plate clamping grooves are formed in the upper parts of the clamping shafts;
the laying method comprises the following steps:
step 1, putting the laminated cover plates into a hopper from the front part and the upper part of the hopper by using a forklift;
step 2, overturning the hopper forwards by 90 degrees by utilizing an overturning operation rod, wherein the horizontally-overlapped cover plate is changed into a vertically-arranged cover plate, and the side surface of the upper part of the hopper in the original state is flush with the edge of the front end of the movable bottom plate;
step 3, the cover plate is pushed forward by a pushing device for the length of one cover plate, and at the moment, the cover plate at the outermost end slides into the cover plate clamping groove;
step 4, utilizing a dynamic traction device to push the paving vehicle forwards, wherein one end of the cover plate slides along with the paving vehicle under the action of gravity, and the other end of the cover plate vertically slides along with the vertical cover plate, and the paving vehicle is continuously pushed to separate the cover plate from the paving vehicle;
and 5, moving the movable bottom plate forwards and retracting the paving vehicle, and then repeating the steps 1-4 to pave the next cover plate.
Preferably, the flip bracket includes:
lifting frames arranged on two sides of the movable bottom plate;
a turnover shaft rotatably connected with the upper end of the lifting part of the lifting frame;
the other end of the turning shaft is fixedly connected with the center position of the side surface of the hopper;
the lifting distance of the lifting frame is larger than L, l=1/2, ldj is the diagonal length of the hopper side rectangle, and Ldb is the length of the short side of the hopper side rectangle.
More preferably, the propelling device comprises a T-shaped screw rod and a propelling bolt in threaded connection with the T-shaped screw rod, and the propelling bolt is in rotary connection with the position, close to the front end, of the bottom of the hopper through a cross rod.
More preferably, the propelling device comprises a propelling plate, the propelling plate is arranged at the upper part of the rectangular frame of the hopper, and a propelling lug is arranged at the lower part of the propelling plate; the end of the pushing projection is provided with a plug hole, a pushing operation rod is inserted in the plug hole, correspondingly, the movable bottom plate is provided with pushing clamping grooves arranged in the length direction of the cable trench, and the side surface of the rear part of the hopper is provided with reinforcing cross beams only at the upper end and the lower end.
Preferably, the traction device is an electric push rod or a hydraulic push rod, a fixed part of the traction device is fixedly connected with the movable bottom plate, and the end part of a telescopic part of the traction device is abutted with the propulsion plate.
Preferably, the cover plate clamping groove comprises an upper sliding part and a lower embedded part, wherein the upper sliding part is in an inverted trapezoid shape, and the inclined edge is close to the movable bottom plate; the embedded part is rectangular;
a rotary spring is arranged between the clamping shaft and the sliding block and used for enabling the opening of the cover plate clamping groove to face upwards; or the lower part of the clamping shaft is provided with a balancing weight.
Preferably, a return chute is arranged at the upper end of the hopper;
the limiting device comprises:
the return sliding block is arranged in the return sliding groove and connected with the bottom of the return sliding groove through a tension spring, the return sliding block is provided with a sliding hole in the horizontal direction, the end part of the return sliding groove is provided with an anti-falling limiting block, and the end part of the return sliding block positioned in the return sliding groove is provided with an anti-falling block;
t-shaped bulges are inserted into the sliding holes, the end parts of the T-shaped bulges are trapezoidal, inclined planes are arranged at the upper parts, and anti-falling stop blocks are arranged at the small end parts of the T-shaped bulges.
Preferably, the front side of the inner side of the upright at the front is provided with rollers to assist in sliding the cover plate.
The beneficial effects of the invention are as follows:
the cable cover plate laying construction is facilitated, the labor intensity of workers is reduced, and the laying efficiency of the cable trench cover plate is improved.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention
FIG. 2 is a schematic diagram of an embodiment of the present invention
FIG. 3 is a schematic view of an embodiment of the invention with the hopper facing upward
FIG. 4 is a schematic view of a hopper facing forward in accordance with an embodiment of the present invention
FIG. 5 is a schematic view of a hopper facing forward in accordance with an embodiment of the invention
FIG. 6 is a schematic view of a hopper according to an embodiment of the invention
FIG. 7 is a schematic view of a flatbed in accordance with one embodiment of the present invention
FIG. 8 is a schematic view of a propulsion device according to an embodiment of the invention
FIG. 9 is a schematic view of a mobile floor and flatbed in accordance with one embodiment of the present invention
FIG. 10 is a schematic view of a hopper according to an embodiment of the invention
FIG. 11 is a cross-sectional view of an embodiment of the invention
FIG. 12 is an enlarged view of the circled portion in FIG. 11
In the figure:
621. a fixed chute; 693. an anti-drop sliding cover; 692. locking the sliding rod; 691. a locking chute; 690. a cross bar; 639. a limit protrusion; 292. a track groove; 900. a cover plate; 291. a roller; 223. an anti-drop stop; 224. an anti-falling block; 226. an anti-falling limiting block; 227. a return chute; 190. a load bearing bracket; 280. a reinforcing beam; 290. a column; 222. t-shaped protrusions; 221. a return sliding block; 330. a cover plate clamping groove; 320. the clamping shaft; 332. an embedding part; 331. an upper slide-in part; 550. a rail pipe; 540. a propulsion rod; 530. a traction lever; 520. a fulcrum ring; 510. a fulcrum frame; 310. a sliding block; 101. pushing the clamping groove; 640. pushing the operating rod; 631. advancing the bumps; 630. a propulsion plate; 620. advancing the bolt; 610. t-shaped screw rod; 220. a limiting device; 420. a turnover shaft; 430. a lifting frame; 410. a fixed block; 240. turning over the operating rod; 230. a turnover pipe; 600. a propulsion device; 400. overturning the bracket; 200. a hopper; 500. a traction device; 300. paving a flatbed; 100. a movable bottom plate;
Detailed Description
In order to make the technical scheme and beneficial effects of the present invention clearer, the following further explain the embodiments of the present invention in detail.
As shown in fig. 1, a method of laying a deck plate on a raceway includes moving a floor 100, a laying carriage 300, a traction device 500, a hopper 200, a roll-over stand 400, and a propulsion device 600.
The mobile floor 100 and the laying carriage 300 are arranged side by side along the length of the raceway. The cable trench is the channel, and the cable cover plate covers the upper portion at the cable trench for guarantee the level and smooth and the inside cable of protection cable trench on ground. Wheels are provided at the lower portion of the moving base 100 to allow the moving base 100 to move. The moving floor 100 is located at the upper portion of the laid cover plate, and the laying carriage 300 is located at the front portion of the moving floor 100 at a position where the cable pit is not laid with the cable cover plate.
Preferably, the wheels of the movable floor 100 are disposed at the edge of the cable pit, that is, the wheels are pressed at the edge of the cable cover plate instead of the middle of the cable cover plate, so that the laid cable cover plate is prevented from being crushed due to the overweight of the hopper.
A hopper 200 is provided at the upper portion of the mobile floor 100, the hopper 200 being adapted to carry a cable cover to be laid. In the undelayed state, hopper 200 is facing upward, which facilitates loading and unloading of the cable cover plate. The cable cover plate can be placed into the hopper through the forklift. In the laying state, the hopper 200 needs to be turned over by 90 degrees to enable the horizontally placed cable cover plates to be vertically placed, and then the cable cover plates at the edges are slid into the horizontal state by the laying vehicle 300 and laid on the cable trench. At this time, the upper side of the hopper 200 in its original state is flush with the front edge of the moving floor 100. I.e., the hopper 200 is turned 90 deg., the hopper is directed forward, and in a state where the hopper is directed forward, the front side of the hopper is flush with the edge of the moving floor as shown in fig. 11.
To facilitate loading, the front side and the upper side of hopper 200 are open and communicate with each other with the front direction pointing from the laid section of the cable duct to the unpaved section of the cable duct. Based on the requirements, the concrete structure of the hopper can be as follows:
since the cable cover plate is generally rectangular, the hopper 200 is shaped as a cuboid and has a cavity of a cuboid.
The hopper 200 is provided with four angular uprights 290, and the left and right sides and the rear side are provided with reinforcing cross beams 280 fixedly connected with the uprights 290. Or, the hopper 200 is provided with four corner-shaped upright posts 290, and the upright posts 290 on the left side and the right side are fixedly connected through a fixing plate. A reinforcing cross beam 280 fixedly connected with the upright post 290 is arranged between the two upright posts 290 at the rear side.
Preferably, to carry the cable cover and to facilitate installation of the propulsion device 600, a rectangular frame is provided at the bottom of the hopper 200 that is fixedly connected to the upright 290. The inner ring of the rectangular frame is smaller than the periphery of the cover plate and is used for bearing the cable cover plate.
Alternatively, a load-bearing bracket 190 is provided on the inside of the upright 290. The bearing bracket 190 is fixedly connected with the bottom of the upright post 290 for bearing the cable cover plate.
Alternatively, a rectangular frame is provided on the upper portion of the carrier 190.
Better, due to the weight of the cable gland itself, coupled with its uneven surface, a greater friction is created between the cable gland and the uprights 290 of the hopper 200. In order to reduce the labor intensity of the construction, in a state that the hopper 200 is upward at the side surface of the upright 290, a roller 291 or a ball is provided at the front side surface of the inner side surface of the upright 290 at the front. The axial direction of the roller 291 is perpendicular to the longitudinal direction of the vertical shaft. At this time, friction is reduced when the cable cover is pushed in, so that the cable cover can roll out of the hopper 200 more easily.
In order to better define the running track of the pusher plate 630 and prevent it from being deviated or inclined, rail grooves 292 are provided on the left and right sides of the column 290 in the length direction. The pushing plate 630 is provided with a limit protrusion 639 corresponding to the position of the rail groove 292. The limit protrusions 639 are slidably disposed in the rail grooves 292, and the vertical state of the pushing plate 630 can be effectively ensured by the limit effect of the four limit protrusions 639.
To facilitate the overturning of the hopper 200, overturning pipes 230 with pipe orifices facing backward are arranged at the left and right sides of the hopper 200, and overturning operation rods 240 are inserted into the overturning pipes. Because hopper 200 and flip bracket 400 are rotatably coupled, hopper 200 may be rotated. Because the hopper behind the cable cover plate has certain weight, the overall length of the overturning pipe 230 and the overturning operation rod 240 can be changed in a mode of inserting the overturning operation rod 240, so that different people can adjust according to the size of personal force and the actual quality of the hopper 200, and the aim of edge overturning is achieved.
A locking means is provided between the flipping operating lever 240 and the flipping tube 230 so as to keep both stable when not operating. The locking device comprises lock holes arranged on the turnover operation rod 240 and the turnover pipe 230 and lock pins inserted in the lock holes, the two lock holes coincide in the inserted state of the turnover operation rod 240, and the lock pins are inserted to realize locking.
In order to prevent the cable cover plate in the vertical state from being tilted outward, a limiting means 220 is provided on the upper side of the rear side of the hopper 200. The limiting means 220 are movably provided with protrusions towards the inside of the hopper 200. After overturning, the limiting means are located in the upper part and the protrusions are located inside the hopper 200, thus achieving a blocking of the cable cover plate. Specific:
the limiting means 220 comprise a return slider 221, a T-shaped protrusion 222. In order to facilitate blocking of the cable cover during the pushing process, a return chute 227 is provided at the upper end of the hopper 200, the return chute 227 being provided at the upper portion of the upright 290 when the hopper 200 is composed of the upright 290 and the reinforcing cross member 280. The length direction of the return chute 227 coincides with the length direction of the column.
The return sliding block 221 is arranged inside the return sliding groove 227 and is connected with the bottom of the return sliding groove 227 through a tension spring. The return slider 221 is provided with a slide hole in the horizontal direction. The return chute 227 is provided at its end with an anti-drop limiting block 226. The end of the return slide block 221 located inside the return slide groove 227 is provided with an anti-drop block 224. During the advancing process, the cable cover plate pushes the limiting device 220 outwards, and the cable cover plate can be prevented from being excessively advanced through the matching of the anti-falling block 224 and the anti-falling limiting block 226, so that the advancing length of the cable cover plate is kept to be the thickness of the cable cover plate.
The T-shaped protrusion 222 is inserted into the slide hole. The end of the T-shaped protrusion 222 is trapezoidal and the inclined surface is at the upper portion. The small end of the T-shaped protrusion 222 is provided with an anti-drop stop 223. Alternatively, the end of the T-shaped protrusion 222 may be a hook that is bent downward. The anti-falling stop 223 is provided or is provided in a hook shape in order to prevent the T-shaped protrusion 222 from falling out of the slide hole. When hopper 200 is in a vertical state, because T-shaped protrusion 222 is an inclined plane, T-shaped protrusion 222 can be automatically pushed out during loading, and T-shaped protrusion 222 can automatically return to play a role in limiting a cable cover plate under the action of gravity after overturning.
The flipping bracket 400 is used to achieve 90 degree flipping of the hopper 200. The flip bracket 400 includes two ways:
the flip bracket 400 includes a fixed block 410 and a flip shaft 420. The fixing blocks 410 are provided at both sides of the moving base 100 and fixedly coupled with the moving base 100. The end of the roll-over shaft is rotatably coupled to the fixed block 410. The bottom side of the front side of the hopper 200 is fixedly connected with the overturning shaft 420, and when the hopper 200 consists of the upright post 290 and the reinforcing cross beam 280, the overturning shaft 420 is fixedly connected with the lower ends of the two upright posts at the front. The roll axis 420 may be one major axis or two minor axes. And when the two short shafts are arranged, the two short shafts are respectively and fixedly connected with the two upright posts. The hopper can now be rotated along the edge of the front lower end of the hopper 200.
The flip bracket 400 includes a lifter 430 and a flip shaft 420.
The lifting frame 430 may be controlled to lift by a hydraulic cylinder using a hydraulic lifting device. The lifting frame 430 is disposed at both sides of the moving base 100, and a fixed portion of the lifting frame 430 is fixedly connected with a side of the moving base 100. The upper end of the lifting part of the lifting frame 430 is rotatably connected with the tilting shaft 420. The other end of the turnover shaft 420 is fixedly connected with the center positions of the left and right sides of the hopper 200. The lifting distance of the lifting frame is greater than L, l=1/2 (Ldj-Ldb), ldj is the diagonal length of the hopper side rectangle, and Ldb is the length of the short side of the hopper side rectangle. At this time, the hopper 200 rotates along the connecting line of the centers of both sides, which saves more effort. The upgrade may be implemented using a pedal type hydraulic cylinder, and a pedal may be provided at an upper portion of the moving floor 100.
The hopper 200 can be rotated by operating the turning operation lever 240, thereby achieving 90 ° turning of the hopper 200.
The laying vehicle 300 is used for realizing that the vertical cable cover plate is converted into a horizontal state in a sliding manner. The laying carriage 300 is likewise provided with wheels, the wheels of the laying carriage 300 being arranged at the edges of the cable duct, i.e. the laying carriage 300 is arranged across the cable duct. The flatbed 300 comprises two sliding blocks 310 and clamping shafts 320 with two ends rotatably connected with the sliding blocks 310. The sliding function of the sliding block 310 may be achieved by providing wheels. The sliding block 310 may be directly driven to slide, and the abrasion of the sliding block 310 is increased by the direct driving, so that the best mode is the wheel mode. In order to limit and fix the cable cover, and better control the sliding speed of the cable cover, a cover clamping groove 330 is arranged at the upper part of the clamping shaft 320. After the front cable cover is pushed out by the pushing device 600, the cable cover at the front edge slides down into the cover clamping groove 330.
To facilitate sliding in of the cover plate 900, the cover plate clamping groove 330 includes an upper sliding-in portion 331 and a lower embedded portion 332. The upper slide-in part 331 is an inverted trapezoid, and the sloping side is close to the movable bottom plate; the embedded portion 332 is rectangular. The locking shaft 320 is abutted against the front edge of the movable floor 100, and the inclined surface of the upper slide-in portion 331 is close to one side of the movable floor 100, and the cover plate is slid into the insertion portion 332 through the inclined surface of the upper slide-in portion 331 after being separated from the hopper. The insertion portion 332 is used to restrict the cover plate to move gently.
Preferably, in order to automatically reset the notch of the cover plate clamping groove 330 of the clamping shaft 320 to an upward state, a rotary spring is arranged between the clamping shaft 320 and the sliding block 310 to enable the opening of the cover plate clamping groove 330 to be upward; alternatively, a weight block is provided at the lower portion of the clamping shaft 320.
Traction devices 500 are provided on both sides of the moving floor 100 to drive the paving vehicle 300 forward. The fixed portion of the traction device 500 is fixedly connected with the moving floor 100, and the end of the pushing portion or the telescopic portion of the traction device 500 is fixedly connected with the paving vehicle 300. Based on this, the traction device 500 not only can drive the movement of the paving vehicle 300 but also functions to connect the moving floor 100 and the paving vehicle 300. The specific structure of traction device 500 may take the following two forms:
the traction device 500 is an electric push rod or a hydraulic push rod. The fixed portion of the traction device 500 is fixedly connected with the movable floor 100, and the end of the telescopic portion of the traction device 500 abuts against the push plate 630. The length direction of the electric push rod or the hydraulic push rod is the front-rear direction, and thus the flatbed 300 can be pushed to move forward. The electric putter needs to be provided with a battery on the movable floor 100, and can be controlled to extend and retract by using a pedal switch. The hydraulic push rod can also adopt a treadle type pressurizing mode, and the pedal of the hydraulic push rod also needs to be arranged at the upper part of the movable bottom plate 100.
The second traction device includes a fulcrum frame 510, a fulcrum ring 520, a traction lever 530, a push rod 540, and a track pipe 550. The fulcrum frame 510 is fixedly connected with the left and right side edges of the moving base 100 or fixedly connected with the elevating frame 430. The fulcrum ring 520 is annular or block-shaped with a through hole. The fulcrum ring 520 is fixedly coupled to an upper end of the fulcrum frame 510. The traction lever 530 is inserted inside the fulcrum ring 520. The push rod 540 is disposed parallel to the movable floor 100, and has a rear end hinged to the lower end of the traction lever 530 and a front end fixedly connected to the slider 310. The rail pipe 550 is fixedly connected to front ends of both sides of the moving base 100 and is sleeved on the push rod 540. The rail pipe 550 serves to define a moving track of the push rod 540 so as to be kept horizontal and to be kept moving forward and backward. When the pushing is needed, the hands move the upper end of the traction operating rod 530 from front to back, and the pushing rod 540 moves from back to front at this time, so as to realize the pushing of the flatbed 300.
The pushing device 600 is disposed on the upper portion of the movable base plate 100 and the lower portion of the hopper 200, and is used for pushing out the vertical cable cover plate, so that the vertical cable cover plate slides out from the hopper 200 and enters the cover plate clamping groove 330 of the flatbed 300. The propulsion device has the following three technical schemes:
the propulsion device 600 includes a T-shaped screw 610, and a propulsion bolt 620 screw-coupled to the T-shaped screw 610. The push bolt 620 is rotatably coupled to the bottom of the hopper 200 near the front end by a cross bar 690. As shown in fig. 4, 5 and 8, the cross bar 690 is fixedly connected with the hopper 200, the cross bar 690 is provided in two, the push bolt 620 is provided in the middle of the two cross bars 690, and both ends of the push bolt 620 are rotatably connected to the ends of the cross bar 690, respectively. In order to lock the push bolt 620, a lock slide 691 parallel to the longitudinal direction of the cross bar 690 is provided at the upper portion thereof. A lock slide rod 692 is slidably provided in the lock slide groove 691, and an anti-slip cover 693 is provided at an end of the lock slide groove 691 near the push bolt 620 in order to prevent the lock slide rod 692 from slipping out. A screw hole is provided in the middle of the push bolt 620. When the axis of the screw hole is in a horizontal state, the fixing chute 621 is disposed at a position of the push bolt 620 corresponding to the locking chute 691, and at this time, the fixing chute 621 and the locking chute 691 are overlapped in the length direction. Preferably, to facilitate sliding of the lock slide 692, a through hole is provided in the end of the lock slide 692.
The T-shaped screw 610 is in threaded connection with a push bolt 620. After the hopper 200 is turned over, the T-shaped screw 610 swings to a horizontal position, and by rotating the T-shaped screw 610, the T-shaped screw 610 can move to a vertical cover plate position, and thus the cover plate can be pushed to move to the outside of the hopper. The cable cover 900 is pushed out and then slid into the cover clamping groove 330 of the clamping shaft 320.
(II)
The propulsion device 600 is a hydraulic lever. The pushing device 600 is disposed in a gap between the rectangular frame of the hopper 200 and the movable floor 100, and is fixedly connected to the movable floor 100. The end of the expansion and contraction part of the hydraulic rod faces the cable cover plate, and the cable dry plate can be pushed out of the hopper 200 by pushing the hydraulic rod. The hydraulic lever is pressurized by a pedal or a handle. A hydraulic pedal is provided at an upper portion of the moving floor 100.
(III) propulsion device 600 includes propulsion plate 630. The pushing plate 630 is provided at the upper part of the rectangular frame of the hopper 200, or at the bottom of the hopper. The pushing plate 630 is provided at a lower portion thereof with pushing protrusions 631. The end of the pushing projection 631 is provided with a plug hole, and a pushing operation rod 640 is plugged into the plug hole. The insertion hole is a waist-shaped hole so as to provide a certain movement range for pushing the operation rod 640. In the state where the hopper is advanced, the longitudinal direction of the waist-shaped hole is the front-rear direction. Correspondingly, the movable bottom plate 100 is provided with pushing clamping grooves 101 which are arranged in the length direction of the cable trench, and the pushing clamping grooves 101 are overlapped with the plug holes in the front-back direction. At this time, the rear side of the hopper 200 is provided with reinforcing beams only at the upper and lower ends.
The pushing operation rod is inserted into the insertion hole, the lower end of the pushing operation rod 640 is clamped with the pushing clamping groove 101 to serve as a fulcrum, the middle of the pushing operation rod is abutted with the insertion hole to serve as a stress point, the pushing plate 630 is pushed by the pushing operation rod 640 to move forwards, and further the cable cover plate is pushed out of the hopper 200.
Preferably, the turning lever 240, the pushing lever 640 and the pulling lever 530 are telescopic levers. In the actual use process, the effect of saving strength can be realized by adjusting the length.
Based on the structure, the method for paving the cable cover plate by using the device comprises the following steps:
step 1, the stacked cover plates are put into the hopper 200 from the front and upper parts of the hopper 200 by a forklift. When the hopper faces upwards, the upper face and the front face of the hopper are open, so that the cover plate can be conveniently placed.
Step 2, the hopper 200 is turned forward by 90 ° using the turning lever 240, and the horizontally stacked deck becomes a vertically discharged deck.
Alternatively, the hopper 200 is first raised by the lifting frame 430 and then turned over by 90 ° by operating the turning operation lever 240. Specifically, the overturning operation rod 240 is lifted up from bottom to top, the hopper follows to rotate, when the hopper overturns to 90 degrees, the lifting frame falls down, and the hopper is attached to the upper portion of the movable bottom plate 100.
After the hopper 200 is rotated 90 deg., the hopper is forward, at which point the front side of the hopper is flush with the edge of the moving floor as shown in fig. 11.
Step 3, the pushing lever 640 is used to push the cover plate forward by one cover plate length, and the cover plate at the outermost end slides into the cover plate clamping groove 330.
And 4, pushing the paving vehicle forward by utilizing the traction operating rod 530 or starting the traction device 500, wherein one end of the cover plate slides along the paving vehicle under the action of gravity, and the other end of the cover plate vertically slides along the vertical cover plate, so that the cover plate is separated from the paving vehicle 300 by continuously pushing the paving vehicle 300.
Step 5, the movable bottom plate 100 is moved forward and retracted to the laying vehicle 300, and then the steps 1-4 are repeated to lay the next cover plate.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the related workers can make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but includes all equivalent changes and modifications in shape, construction, characteristics and spirit according to the scope of the claims.

Claims (7)

1. A method of laying a cover plate over a cable trench, characterized by:
a paving apparatus is applied, the paving apparatus comprising:
a movable bottom plate (100) and a flatbed (300) which are arranged side by side along the length direction of the cable trench;
traction devices (500) arranged at two sides of the movable bottom plate (100) and used for driving the flatbed (300) to advance;
a hopper (200) provided on the movable floor (100);
a turnover bracket (400) fixedly connected with the movable bottom plate (100) and rotationally connected with the hopper (200) for turning over the hopper (200);
a pushing device (600) arranged at the upper part of the movable bottom plate (100) and the lower part of the hopper (200) and used for pushing out the cover plate;
the front side surface and the upper side surface of the hopper (200) are open and communicated; the front direction points to the unpaved section of the cable duct; the left and right sides of the hopper (200) are provided with overturning pipes (230) with pipe orifices facing backward, and overturning operation rods (240) are inserted in the overturning pipes; the upper edge of the rear side surface of the hopper (200) is provided with a limiting device (220), and the limiting device (220) is movably provided with a bulge facing the inner side of the hopper (200);
the paving vehicle (300) comprises two sliding blocks (310), and clamping shafts (320) with two ends rotatably connected with the sliding blocks (310), wherein cover plate clamping grooves (330) are formed in the upper parts of the clamping shafts (320);
the laying method comprises the following steps:
step 1, putting the laminated cover plates into a hopper (200) from the front part and the upper part of the hopper by using a forklift;
step 2, the hopper (200) is turned forwards by 90 degrees by using a turning operation rod (240), the horizontally-stacked cover plates are changed into vertically-discharged cover plates, and the upper side surface of the hopper (200) in the original state is flush with the front end edge of the movable bottom plate (100);
step 3, the cover plate is pushed forward by the pushing device (600) for the length of one cover plate, and at the moment, the cover plate at the outermost end slides into the cover plate clamping groove (330);
step 4, utilizing a movable traction device (500) to push the paving vehicle forwards, wherein one end of the cover plate slides along the paving vehicle under the action of gravity, and the other end of the cover plate vertically slides along the vertical cover plate, and the paving vehicle (300) is continuously pushed to separate the cover plate from the paving vehicle (300);
and 5, moving the movable bottom plate (100) forwards and retracting the laying vehicle (300), and then repeating the steps 1-4 to lay the next cover plate.
2. A method of laying a cover plate on a raceway according to claim 1, characterized in that:
the flip bracket (400) includes:
lifting frames (430) arranged at both sides of the movable bottom plate (100);
a turnover shaft (420) rotatably connected with the upper end of the lifting part of the lifting frame (430);
the other end of the turnover shaft (420) is fixedly connected with the center position of the side surface of the hopper (200);
the lifting distance of the lifting frame is greater than L, l=n (L dj -L db ），L dj Is the diagonal length of the side rectangle of the hopper, L db Is the length of the short side of the hopper side rectangle.
3. A method of laying a cover plate on a raceway according to claim 1, characterized in that:
the propelling device (600) comprises a T-shaped screw rod (610) and a propelling bolt (620) in threaded connection with the T-shaped screw rod (610), and the propelling bolt (620) is rotatably connected with the bottom of the hopper (200) at a position close to the front end through a cross rod (690).
4. A method of laying a cover plate on a raceway according to claim 1, characterized in that:
the propelling device (600) comprises a propelling plate (630), wherein the propelling plate (630) is arranged at the upper part of the rectangular frame of the hopper (200), and a propelling lug (631) is arranged at the lower part of the propelling plate (630); the end of the pushing projection (631) is provided with a plug hole, a pushing operation rod (640) is plugged in the plug hole, correspondingly, the movable bottom plate (100) is provided with pushing clamping grooves (101) which are arranged in the length direction of the cable pit, and the side surface of the rear part of the hopper (200) is provided with reinforcing cross beams only at the upper end and the lower end.
5. A method of laying a cover plate on a raceway according to claim 1, characterized in that:
the traction device (500) is an electric push rod or a hydraulic push rod, a fixed part of the traction device (500) is fixedly connected with the movable bottom plate (100), and the end part of a telescopic part of the traction device (500) is abutted with the pushing plate (630).
6. A method of laying a cover plate on a raceway according to claim 1, characterized in that:
the cover plate clamping groove (330) comprises an upper sliding part (331) and a lower embedded part (332), the upper sliding part (331) is in an inverted trapezoid shape, and the inclined edge is close to the movable bottom plate; the embedded part (332) is rectangular;
a rotary spring is arranged between the clamping shaft (320) and the sliding block (310) to enable the opening of the cover plate clamping groove (330) to face upwards; or, the lower part of the clamping shaft (320) is provided with a balancing weight.
7. A method of laying a cover plate on a raceway according to claim 1, characterized in that:
a return chute (227) is arranged at the upper end of the hopper;
the limiting device (220) comprises:
the return sliding block (221) is arranged in the return sliding groove (227) and is connected with the bottom of the return sliding groove (227) through a tension spring, the return sliding block (221) is provided with a sliding hole in the horizontal direction, the end part of the return sliding groove (227) is provided with an anti-falling limiting block (226), and the end part of the return sliding block (221) positioned in the return sliding groove (227) is provided with an anti-falling block (224);
t-shaped bulges (222) are inserted into the sliding holes, the end parts of the T-shaped bulges (222) are trapezoid, inclined planes are arranged at the upper parts, and anti-falling stop blocks (223) are arranged at the small end parts of the T-shaped bulges (222).
CN202011266206.0A 2020-04-17 2020-04-17 Method for paving cover plate on cable trench Active CN112448356B (en)

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CN202010303800.6A CN111371056B (en) 2020-04-17 2020-04-17 Cable trench cover plate laying device

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CN115158428B (en) * 2022-08-03 2023-10-24 河海大学 Auxiliary laying device for cable trench cover plate

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CN112448356A (en) 2021-03-05
CN112436474B (en) 2022-01-25
CN111371056A (en) 2020-07-03
CN112436474A (en) 2021-03-02
CN111371056B (en) 2020-11-24

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