CN112909857A - Prefabricated cable trench structure and construction method thereof - Google Patents
Prefabricated cable trench structure and construction method thereof Download PDFInfo
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- CN112909857A CN112909857A CN202110084874.XA CN202110084874A CN112909857A CN 112909857 A CN112909857 A CN 112909857A CN 202110084874 A CN202110084874 A CN 202110084874A CN 112909857 A CN112909857 A CN 112909857A
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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
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
- H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires
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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
- H02G3/0487—Tubings, i.e. having a closed section with a non-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
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
Abstract
The application relates to a prefabricated cable trench structure, and relates to the technical field of electric power facilities; the device comprises a plurality of prefabricated calandrias, wherein the end part of each prefabricated calandria is provided with a mounting hole in a penetrating way, and the mounting hole penetrates through the top wall of the prefabricated calandria; a middle plate is respectively inserted into two ends of the pre-mounting hole, a top plate is also inserted into the mounting hole, a first concave part is formed at the bottom of the mounting hole, second concave parts are respectively formed at two ends of the middle plate, and a third concave part is formed at one end of the top plate facing the middle plate; the top wall of the prefabricated calandria is provided with extension plates at two sides of the mounting hole respectively, and the side wall of the mounting hole is provided with a movable hole for sliding the middle plate and the top plate; the side walls of the middle plate and the top plate are both rotatably connected with connecting rods, and the mounting holes and the side walls of the extension plates are jointly provided with sliding holes for the sliding of the connecting rods; the side wall of the extending plate for the top plate to slide is provided with a yielding block, and the top wall of the prefabricated pipe rack is provided with a yielding hole for the yielding block to slide along the width direction; this application has the convenient installation that realizes the cable pit, improves the effect of efficiency of construction.
Description
Technical Field
The application relates to the technical field of electric power facilities, in particular to a prefabricated cable trench structure and a construction method thereof.
Background
The underground cable paving work for realizing the connection of different public equipment and power supply equipment is the most basic content of municipal construction; in order to protect the underground cable, a foundation pit is usually dug on the ground, a cable trench is laid in the foundation pit, and then the underground cable is laid in the cable trench to protect the underground cable.
The related Chinese patent with application number 2020107817663 discloses a prefabricated cable trench and a construction method thereof, the prefabricated cable trench comprises prefabricated calandria, each prefabricated calandria comprises a bottom plate, a first side plate and a second side plate which are oppositely arranged on the same side surface of the bottom plate, a cover plate arranged on the side wall of the first side plate and the second side plate far away from the bottom plate, and a first end plate and a second end plate which are positioned at two ends of the bottom plate, the first end plate and the second end plate respectively comprise a lower unit body, a middle unit body and an upper unit body, first arc-shaped concave parts are respectively arranged above the upper unit body and below the upper unit body, and second arc-shaped concave parts are respectively arranged at the upper side and the lower side of; during construction, firstly a foundation pit is excavated, a lower unit body of a prefabricated pipe bank is firstly inserted into the foundation pit, the end parts of adjacent prefabricated pipe banks are jointed and spliced together, then a cable is firstly inserted into a first arc-shaped concave part, then a second arc-shaped concave part below the middle unit body is aligned with a first arc-shaped concave part above the lower unit body so as to be sleeved on the cable in a hooping way, a second batch of cables are inserted into a second arc-shaped concave part above the middle unit body, and finally the first arc-shaped concave part below the upper unit body is aligned with a second arc-shaped concave part above the middle unit body so as to be sleeved on the cable in a hooping way, so that the installation of a cable trench and the cable is realized.
In view of the above-mentioned related technologies, the inventor considers that the lower unit body, the middle unit body and the upper unit body are independent from each other and inconvenient to carry, so that the assembly operation of the prefabricated calandria is inconvenient, the construction efficiency is low, and improvement is needed.
Disclosure of Invention
In order to solve the technical problem that the construction efficiency is affected due to the inconvenience in installation of the prefabricated calandria in the related art, the application provides a prefabricated cable trench structure and a construction method thereof.
The application provides a pair of prefabricated cable trench structure adopts following technical scheme:
a prefabricated cable trench structure comprises a plurality of prefabricated calandrias, wherein an installation hole penetrates through the end part of each prefabricated calandria and penetrates through the top wall of each prefabricated calandria; a middle plate is respectively inserted into two ends of the pre-mounting hole, a top plate is also inserted into the mounting hole, a first concave part is formed at the bottom of the mounting hole, second concave parts are respectively formed at two ends of the middle plate, and a third concave part is formed at one end, facing the middle plate, of the top plate; extension plates are respectively arranged on the top wall of the prefabricated calandria and positioned on two sides of the mounting hole, and a movable hole for sliding the middle plate and the top plate is formed in the side wall of the mounting hole; the side walls of the middle plate and the top plate are both rotatably connected with connecting rods, and the mounting holes and the side walls of the extension plates are jointly provided with sliding holes for the sliding of the connecting rods; the confession extension board lateral wall that the roof slided is provided with lets the position piece, prefabricated calandria roof is seted up along its width direction and is supplied to let the hole of stepping down that the position piece slided.
By adopting the technical scheme, during construction, firstly digging a foundation pit, placing the prefabricated exhaust pipe into the foundation pit, firstly moving the top plate towards the direction far away from the first concave part, when the connecting rod connected with the top plate moves to the position above the mounting hole, rotating the top plate by taking the connecting rod as the center to enable the top plate to be far away from the mounting hole, and then moving the extension plate to the end, far away from the mounting hole, of the abdicating hole to avoid the rotation of the subsequent middle plate blocked by the top plate; then the middle plate is rotated away from the mounting hole in the same operation, the cable is laid in the first concave portion, the middle plate is inserted into the mounting hole again, the cable is laid in the second concave portion above the middle plate, and finally the top plate is inserted into the mounting hole again.
Optionally, the first recess, the second recess and the third recess are provided with rubber cushions.
Through adopting above-mentioned technical scheme, the setting of rubber cushion can reduce wearing and tearing between first concave part and the cable, second concave part and cable, third concave part and the cable, plays the effect of protection cable.
Optionally, the rubber cushion layer side walls on the second concave portion and the third concave portion are integrally formed with limiting blocks, and each limiting hole for the limiting block to be inserted is formed in the inner wall of each movable hole.
Through adopting above-mentioned technical scheme, the setting of spacing hole and stopper can realize the firm amalgamation of medium plate and first concave part under the condition that does not influence medium plate and roof and slide along the mounting hole to and the firm amalgamation of medium plate and roof.
Optionally, a linkage rod is connected between the two middle plates on the same prefabricated pipe rack.
Through adopting above-mentioned technical scheme, the setting of gangbar has realized the fixed connection of two medium plates on the same prefabricated calandria to take out two medium plates simultaneously or pack into the mounting hole, improve the efficiency of construction.
Optionally, a support plate is arranged on the linkage rod.
Through adopting above-mentioned technical scheme, the setting of backup pad can play the effect of accepting, supporting cable to optimize the stable laying of prefabricated calandria to the cable.
Optionally, the top wall of the prefabricated pipe bank is symmetrically provided with fixing grooves at one end thereof, fixing rods are inserted into each fixing groove, a spring is connected between each fixing rod and the bottom wall of the fixing groove, a connecting block is arranged at one end of each fixing rod far away from the spring, and a connecting hole for the connecting block on the adjacent prefabricated pipe bank to be inserted is formed in one end of each prefabricated pipe bank far away from the fixing groove.
Through adopting above-mentioned technical scheme, the dead lever is pulled up, and the spring is tensile this moment, then inserts the connecting block on this dead lever in the connecting hole on the adjacent prefabricated calandria, and the spring kick-backs to firmly insert the connecting block establish with the connecting hole in, thereby strengthened the relation of connection between two adjacent prefabricated calandria, reduced two adjacent prefabricated calandria and followed the condition that its length direction slided.
Optionally, each the inside rotation of connecting block is connected with the locking pole, the locking pole tip is connected with the locking piece perpendicularly, the inside intercommunicating pore that supplies the locking piece to run through of offering of connecting block, the inner wall that prefabricated calandria is close to connecting hole department is provided with and supplies the locking piece to insert the locking hole of establishing.
Through adopting above-mentioned technical scheme, after the connecting block inserted the connecting hole inside, rotate the locking lever in order to rotate the lock piece and go out the intercommunicating pore and insert in the lock hole to make the connecting block firmly insert under the dual function in spring and lock piece, lock hole and locate in the connecting hole.
Optionally, the side wall of the connecting block, which is away from the connecting rod, is provided with a guide surface which facilitates the connecting block to be quickly inserted into the connecting hole.
Through adopting above-mentioned technical scheme, the setting up of spigot surface has reduced the resistance of connecting block when inserting inside the connecting hole to improve and accelerate the concatenation efficiency between two adjacent prefabricated calandrias.
Optionally, a construction method adopted by a prefabricated cable trench structure includes the following steps:
s1, excavating a foundation pit, performing foundation treatment to keep the bottom wall and the inner side wall of the foundation flat, and then pouring a concrete cushion layer into the foundation pit;
s2, inserting the prefabricated pipe racks into the foundation pit, inserting the connecting block on each prefabricated pipe rack into the connecting hole of the adjacent prefabricated pipe rack, and then rotating the locking rod on each connecting block to insert the locking piece into the connecting hole close to the locking piece;
s3, sliding out the top plate along the height direction of the mounting hole, rotating the top plate to one side of the mounting hole when the top plate moves above the mounting hole, and finding one side far away from the mounting hole to move the top plate; then sliding out the middle plate along the height direction of the mounting hole, and rotating the middle plate to one side of the mounting hole far away from the top plate when the middle plate moves above the mounting hole;
s4, laying a cable into the first concave part, and when the cable penetrates through the interior of the prefabricated calandria, the first supporting plate receives and supports the cable; after the laying is finished, the middle plate is inserted into the mounting hole again, the second concave part below the middle plate is buckled on the first concave part, and the limiting block on the middle plate is inserted into the limiting hole at the corresponding position;
and S5, laying a second layer of cables on the second concave part above the middle plate, inserting the top plate into the mounting hole again after laying is finished, so that the third concave part on the top plate is buckled on the second concave part above the middle plate, the limiting block on the top plate is inserted into the limiting hole at the corresponding position, and finally, the mounting is finished.
By adopting the technical scheme, during construction, firstly digging a foundation pit, placing the prefabricated exhaust pipe into the foundation pit, firstly moving the top plate towards the direction far away from the first concave part, when the connecting rod connected with the top plate moves to the position above the mounting hole, rotating the top plate by taking the connecting rod as the center to enable the top plate to be far away from the mounting hole, and then moving the extension plate to the end, far away from the mounting hole, of the abdicating hole to avoid the rotation of the subsequent middle plate blocked by the top plate; then the middle plate is rotated away from the mounting hole in the same operation, the cable is laid in the first concave portion, the middle plate is inserted into the mounting hole again, the cable is laid in the second concave portion above the middle plate, and finally the top plate is inserted into the mounting hole again.
In summary, the present application includes at least one of the following beneficial technical effects:
1. moving the top plate towards the direction far away from the first concave part, rotating the top plate by taking the connecting rod as the center when the connecting rod connected with the top plate moves to the position above the mounting hole, so that the top plate is far away from the mounting hole, and moving the extension plate to the end, far away from the mounting hole, of the abdicating hole, so as to avoid the top plate blocking the rotation of the subsequent middle plate; then the middle plate is rotated away from the mounting hole by the same operation, the cable is laid in the first concave part, the middle plate is inserted into the mounting hole again, the cable is laid in the second concave part above the middle plate, and finally the top plate is inserted into the mounting hole again, so that the problem that the middle plate and the top plate are inconvenient to carry is solved while the cable is mounted;
2. the dead lever of pulling up, the spring is tensile this moment, then inserts the connecting block on this dead lever in the connecting hole on the adjacent prefabricated calandria, and the spring kick-backs to firmly insert the connecting block establish with the connecting hole in, thereby strengthened the relation of connection between two adjacent prefabricated calandria, reduced the condition that two adjacent prefabricated calandrias slided along its length direction.
Drawings
FIG. 1 is a schematic structural view of a prefabricated cable trench structure according to an embodiment;
fig. 2 is an exploded view of the embodiment for embodying the internal structure of the prefabricated gauntlet;
FIG. 3 is an enlarged schematic view of the structure of part A of FIG. 2;
FIG. 4 is a schematic diagram of a partial explosion for embodying the structure of the middle plate and the top plate in the embodiment;
FIG. 5 is an enlarged schematic view of the structure of FIG. 2 for embodying the B portion;
FIG. 6 is a partial schematic view showing the positional relationship among the mounting hole, the movable hole and the slide hole in the embodiment;
FIG. 7 is a sectional view showing the connection relationship between the middle plate, the top plate and the prefabricated calandria in the embodiment;
FIG. 8 is a schematic diagram of a prefabricated calandria structure for embodying the detachment of the middle plate and the top plate from the mounting hole in the embodiment;
fig. 9 is a partial cross-sectional view of an embodiment for embodying the connection between adjacent pre-fabricated gauntlets.
Description of reference numerals: 1. prefabricating a calandria; 11. mounting holes; 111. a movable hole; 112. a sliding hole; 113. a limiting hole; 114. a first recess; 12. a cavity; 13. fixing grooves; 131. fixing the rod; 132. a spring; 133. connecting blocks; 1331. a docking chamber; 1332. a lock lever; 1333. a locking piece; 1334. a communicating hole; 1335. a guide surface; 14. connecting holes; 141. a locking hole; 15. a hole of abdication; 16. an extension plate; 161. a bit-yielding block; 17. a first cable via; 18. a second cable via; 2. a middle plate; 21. a second recess; 211. a rubber cushion layer; 2111. a limiting block; 22. a linkage rod; 231. a support plate; 3. a top plate; 31. a third recess; 32. a connecting rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-9.
The embodiment of the application discloses prefabricated cable pit structure. Referring to fig. 1 and 2, the prefabricated cable trench structure comprises a plurality of prefabricated pipe banks 1, wherein the end parts of the adjacent prefabricated pipe banks 1 are mutually attached; the mounting hole 11 has all been seted up in the end wall of each prefabricated calandria 1, and the mounting hole 11 runs through 1 roof of prefabricated calandria, and 1 inside cavity 12 that is provided with the power cable and runs through of prefabricated calandria, and cavity 12 is linked together with mounting hole 11.
Referring to fig. 1 and 2, a first concave portion 114 is arranged at a position, close to the bottom wall of the installation hole 11, of each prefabricated pipe bank 1, a middle plate 2 is respectively inserted at two ends of the position, close to the installation hole 11, of each prefabricated pipe bank 1, a second concave portion 21 is respectively arranged at the upper end and the lower end of the middle plate 2, and the second concave portion 21 at the lower end of the middle plate 2 and the first concave portion 114 are spliced to form a first cable through hole 17; a top plate 3 is further inserted in each prefabricated pipe row 1 near the mounting hole 11, third concave portions 31 are formed at two ends of the top plate 3, and the second concave portions 21 and the third concave portions 31 located at the upper end of the middle plate 2 are spliced to form second cable through holes 18.
Referring to fig. 3 and 4, a linkage rod 22 is welded between two middle plates 2 on the same prefabricated pipe bank 1, a support plate 231 is welded on the outer side wall of the linkage rod 22, the length direction of the support plate 231 is parallel to the length direction of the prefabricated pipe bank 1, a rubber cushion 211 is fixedly bonded at each of the first concave portion 114, the third concave portion 31 and the two second concave portions 21, the lowest point of the rubber cushion 211 of the second concave portion 21 above the middle plate 2 is flush with the upper surface of the support plate 231, and a limiting block 2111 is integrally formed on the side walls of the rubber cushion 211 on the second concave portion 21 and the third concave portion 31 so as to receive a cable inserted into the cavity 12 through the support plate 231.
Referring to fig. 2 and 5, the top wall of the prefabricated calandria 1 is provided with extension plates 16 at two ends thereof, the two extension plates 16 at one side of the mounting hole 11 are welded with a yielding block 161, the top wall of the prefabricated calandria 1 is provided with a yielding hole 15 for the yielding block 161 to slide, and the yielding hole 15 is formed along the width direction of the prefabricated calandria 1; the extension plate 16 on the other side of the fixing hole is fixedly welded on the top wall of the prefabricated calandria 1.
Referring to fig. 6 and 7, the side wall of the mounting hole 11 is provided with a movable hole 111, the movable hole 111 is formed along the height direction of the prefabricated pipe bank 1, two sides of the middle plate 2, two sides of the top plate 3 and two sides of each rubber cushion layer 211 are inserted into the movable holes 111 at corresponding positions, and a limiting hole 113 for inserting a limiting block 2111 (refer to fig. 3) is formed in the movable hole 111.
Referring to fig. 6 and 7, the connecting rods 32 are respectively inserted into the side walls of the middle plate 2 and the top plate 3, and sliding holes 112 for the sliding movement of the connecting rods 32 are jointly formed in the inner walls of the extending plate 16 and the movable holes 111; the extension plate 16 with the relief block 161 is located above the connecting rod 32 on the top plate 3, and the extension plate 16 welded to the pre-manufactured gauntlet 1 is located above the connecting rod 32 on the middle plate 2.
Referring to fig. 7 and 8, the top plate 3 is prevented from obstructing the rotation of the subsequent middle plate 2 by moving the top plate 3 upwards until the connecting rod 32 on the top plate 3 moves into the extending plate 16, then rotating the top plate 3 in the direction away from the mounting hole 11, and moving the top plate 3 and the extending plate 16 connected with the top plate 3 to the end of the abdicating hole 15 away from the mounting hole 11; moving the middle plate 2 upwards until the connecting rod 32 on the middle plate 2 moves into the extending plate 16, and then rotating the middle plate 2 towards the direction far away from the mounting hole 11, wherein the middle plate 2 and the top plate 3 are positioned at two sides of the mounting hole 11, and the prefabricated pipe bank 1 is open at the upper part and can be laid with a first batch of cables into the first concave part 114; the middle plate 2 is inserted into the mounting hole 11 again, a second cable is laid in the second recess 21 at the upper end of the middle plate 2, and finally the top plate 3 is inserted into the mounting hole 11 again.
Referring to fig. 8 and 9, the top wall of the prefabricated pipe bank 1 is symmetrically provided with fixing grooves 13 at one end, the fixing grooves 13 are located at two sides of the mounting hole 11, fixing rods 131 are respectively inserted into the fixing grooves 13, one ends of the fixing rods 131 far away from the springs 132 are welded with connecting blocks 133, the top wall of the prefabricated pipe bank 1 far away from the fixing grooves 13 is symmetrically provided with connecting holes 14 for the connecting blocks 133 on the adjacent prefabricated pipe bank 1 to be inserted, the connecting holes 14 are located at two sides of the mounting hole 11, and the end walls of the connecting blocks 133 are provided with guide surfaces 1335 convenient for the connecting blocks to be quickly inserted.
Referring to fig. 8 and 9, a docking chamber 1331 is formed in the connecting block 133 away from the fixing rod 131, a locking rod 1332 is rotatably connected in the docking chamber 1331, a locking piece 1333 is vertically welded to the lower end of the locking rod 1332, the locking piece 1333 is located in the docking chamber 1331, a communication hole 1334 communicated with the docking chamber 1331 is formed in the side wall of the connecting block 133, and a locking hole 141 for inserting the locking piece 1333 is formed in the inner wall of the locking hole 141; the connecting block 133 is inserted into the connecting hole 14 of the adjacent prefabricated discharge pipe 1, then the locking lever 1332 is rotated to rotate the locking piece 1333 out of the docking chamber 1331 from the communication hole 1334, and the locking piece 1333 is inserted into the locking hole 141, so as to splice the adjacent prefabricated discharge pipes 1.
A construction method of a prefabricated cable trench comprises the following steps:
s1, excavating a foundation pit, performing foundation treatment to keep the bottom wall and the inner side wall of the foundation flat, and then pouring a concrete cushion layer into the foundation pit;
s2, inserting the prefabricated pipe racks 1 into a foundation pit, inserting the connecting block 133 on each prefabricated pipe rack 1 into the connecting hole 14 of the adjacent prefabricated pipe rack 1, and then rotating the locking rod 1332 on each connecting block 133 to insert the locking piece 1333 into the connecting hole 14 close to the connecting block;
s3, sliding out the top plate 3 along the height direction of the mounting hole 11, rotating the top plate 3 to one side of the mounting hole 11 when the top plate 3 moves above the mounting hole 11, and finding one side far away from the mounting hole 11 to move the top plate 3; then the middle plate 2 slides out along the height direction of the mounting hole 11, and when the middle plate 2 moves to the position above the mounting hole 11, the middle plate 2 is rotated to one side of the mounting hole 11 far away from the top plate 3;
a handle may be embedded on the upper surfaces of the top plate 3 and the support plate 231 to remove the top plate 3 and the middle plate 2 from the mounting hole 11.
S4, laying cables into the first concave part 114, and when the cables penetrate through the inside of the prefabricated calandria 1, the first supporting plate 231 receives and supports the cables; after the laying is finished, the middle plate 2 is inserted into the mounting hole 11 again, the second concave part 21 below the middle plate 2 is buckled on the first concave part 114, and the limiting block 2111 on the middle plate 2 is inserted into the limiting hole 113 at the corresponding position;
s5, laying a second layer of cable on the second concave portion 21 above the middle plate 2, inserting the top plate 3 into the mounting hole 11 again after laying is finished, so that the third concave portion 31 on the top plate 3 is buckled on the second concave portion 21 above the middle plate 2, and the limiting block 2111 on the top plate 3 is inserted into the limiting hole 113 at the corresponding position, and finally completing the installation.
The implementation principle of a prefabricated cable trench structure of the embodiment of the application is as follows: during construction, a foundation pit is excavated, the prefabricated exhaust pipes 1 are placed in the foundation pit, the connecting block 133 on one prefabricated exhaust pipe 1 is inserted into the connecting hole 14 of the adjacent prefabricated exhaust pipe 1, and then the locking rod 1332 is rotated to insert the locking piece 1333 into the locking hole 141 at the corresponding position, so that the adjacent prefabricated exhaust pipes 1 are assembled.
Then, the top plate 3 is moved in a direction away from the first concave portion 114, when the connecting rod 32 connected to the top plate 3 is moved to the upper side of the mounting hole 11, the top plate 3 is rotated around the connecting rod 32, so that the top plate 3 is away from the mounting hole 11, and the extending plate 16 with the yielding block 161 is moved to the end of the yielding hole 15 away from the mounting hole 11, so as to prevent the top plate 3 from obstructing the rotation of the subsequent middle plate 2; then, in the same operation, the middle plate 2 is rotated away from the mounting hole 11, the cable is laid in the first concave portion 114, the middle plate 2 is inserted again into the mounting hole 11, the cable is laid in the second concave portion 21 located above the middle plate 2, and the top plate 3 is inserted again into the mounting hole 11.
When the second concave portion 21 at the lower end of the middle plate 2 is covered on the first concave portion 114, the stopper 2111 on the second concave portion 21 is inserted into the corresponding stopper hole 113, and when the third concave portion 31 on the top plate 3 is covered on the second concave portion 21 at the upper end of the middle plate 2, the stopper 2111 on the third concave portion 31 is inserted into the corresponding stopper hole 113, so that the middle plate 2 and the top plate 3 are stably inserted into the mounting hole 11, and the problem that the middle plate 2 and the top plate 3 are inconvenient to carry is solved while the cable is finally installed.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A prefabricated cable trench structure comprises a plurality of prefabricated calandrias (1), wherein a mounting hole (11) penetrates through the end part of each prefabricated calandria (1), and the mounting hole (11) penetrates through the top wall of each prefabricated calandria (1); the middle plate (2) is inserted into two ends of the pre-installation hole (11), the top plate (3) is also inserted into the installation hole (11), a first concave part (114) is formed in the bottom of the installation hole (11), second concave parts (21) are formed in two ends of the middle plate (2), and a third concave part (31) is formed in one end, facing the middle plate (2), of the top plate (3); the method is characterized in that: extension plates (16) are respectively arranged on the top wall of the prefabricated calandria (1) and positioned on two sides of the mounting hole (11), and a movable hole (111) for the middle plate (2) and the top plate (3) to slide is formed in the side wall of the mounting hole (11); the side walls of the middle plate (2) and the top plate (3) are both rotatably connected with a connecting rod (32), and the side walls of the mounting hole (11) and the extension plate (16) are jointly provided with a sliding hole (112) for the sliding of the connecting rod (32); confession extension board (16) lateral wall that roof (3) slided is provided with lets a piece (161), prefabricated calandria (1) roof is followed its width direction and is offered and supplies to let a hole (15) of stepping down that a piece (161) slided.
2. The prefabricated cable trench structure of claim 1, wherein: rubber cushions (211) are arranged on the side walls of the first concave part (114), the second concave part (21) and the third concave part (31).
3. The prefabricated cable trench structure of claim 2, wherein: the side walls of the rubber cushion layers (211) on the second concave portion (21) and the third concave portion (31) are integrally formed with limiting blocks (2111), and limiting holes (113) for the limiting blocks (2111) to be inserted are formed in the inner wall of each movable hole (111).
4. The prefabricated cable trench structure of claim 3, wherein: and a linkage rod (22) is connected between the two middle plates (2) on the same prefabricated calandria (1).
5. The precast cable duct structure of claim 4, wherein: a supporting plate (231) is arranged on the linkage rod (22).
6. The prefabricated cable trench structure of claim 1, wherein: the prefabricated calandria (1) roof just is located its one end and has seted up fixed slot (13) symmetrically, each fixed slot (13) are all inserted and are equipped with dead lever (131), each be connected with spring (132) between dead lever (131) and the fixed slot (13) diapire jointly, the one end that spring (132) were kept away from in dead lever (131) is provided with connecting block (133), connecting hole (14) that establish are inserted in connecting block (133) on supplying adjacent prefabricated calandria (1) are seted up to the one end that fixed slot (13) department was kept away from in prefabricated calandria (1).
7. The precast cable duct structure of claim 6, wherein: each inside rotation of connecting block (133) is connected with lock pole (1332), lock pole (1332) tip is connected with locking piece (1333) perpendicularly, inside intercommunicating pore (1334) of offering the confession locking piece (1333) and running through of connecting block (133), the inner wall that prefabricated calandria (1) is close to connecting hole (14) department is provided with and supplies locking piece (1333) to insert locking hole (141) of establishing.
8. The precast cable duct structure of claim 7, wherein: the side wall of the connecting block (133) departing from the connecting rod is provided with a guide surface (1335) which is convenient for the connecting block (133) to be quickly inserted into the connecting hole (14).
9. The construction method for the prefabricated cable trench structure according to any one of claims 1 to 8, wherein: the method comprises the following steps:
s1, excavating a foundation pit, performing foundation treatment to keep the bottom wall and the inner side wall of the foundation flat, and then pouring a concrete cushion layer into the foundation pit;
s2, inserting the prefabricated pipe racks (1) into a foundation pit, inserting the connecting block (133) on each prefabricated pipe rack (1) into the connecting hole (14) of the adjacent prefabricated pipe rack (1), and then rotating the locking rod (1332) on each connecting block (133) to insert the locking piece (1333) into the connecting hole (14) close to the connecting block;
s3, sliding out the top plate (3) along the height direction of the mounting hole (11), when the top plate (3) moves above the mounting hole (11), rotating the top plate (3) to one side of the mounting hole (11), and finding one side far away from the mounting hole (11) to move the top plate (3); then the middle plate (2) slides out along the height direction of the mounting hole (11), and when the middle plate (2) moves above the mounting hole (11), the middle plate (2) is rotated to one side of the mounting hole (11) far away from the top plate (3);
s4, laying cables into the first concave part (114), and when the cables penetrate through the prefabricated calandria (1), the first supporting plate (231) receives and supports the cables; after paving is finished, the middle plate (2) is inserted into the mounting hole (11) again, a second concave part (21) below the middle plate (2) is buckled on the first concave part (114), and a limiting block (2111) on the middle plate (2) is inserted into a limiting hole (113) at a corresponding position;
s5, laying a second layer of cable on the second concave part (21) above the middle plate (2), after laying is finished, inserting the top plate (3) into the mounting hole (11) again to enable the third concave part (31) on the top plate (3) to be buckled on the second concave part (21) above the middle plate (2), enabling the limiting block (2111) on the top plate (3) to be inserted into the limiting hole (113) at the corresponding position, and finally completing mounting.
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| CN114583653A (en) * | 2022-03-28 | 2022-06-03 | 国网江苏省电力有限公司 | Connecting structure of prefabricated calandria module of distribution network civil engineering assembly |
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