CN112520488A

CN112520488A - Pulley mechanism for paying off power cable for power construction

Info

Publication number: CN112520488A
Application number: CN202011478272.4A
Authority: CN
Inventors: 黄凡喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-03-19

Abstract

The invention discloses a pulley mechanism for paying off a power cable for power construction, which comprises a U-shaped base, wherein a roller is arranged in the U-shaped base, a bolt penetrates through the U-shaped base and is rotatably connected with the roller, a nut is connected to the bolt in a threaded manner and abuts against the outer wall of the U-shaped base, a support plate is arranged above the U-shaped base, two guide posts are fixedly connected to the bottom of the support plate, two guide grooves are formed above the U-shaped base, the two guide posts respectively extend into the opposite guide grooves and are in sliding connection with the guide grooves, and a hook is fixedly connected to the upper end of the support plate. The cable limiting device is reasonable in structure, can buffer a swaying cable, can weaken the collision strength of the pulley mechanism, realizes the protection of the pulley mechanism, is convenient to install and disassemble the supporting plate, is convenient and quick to operate, can limit the cable to enable the cable not to jump easily, and is good in practicability.

Description

Pulley mechanism for paying off power cable for power construction

Technical Field

The invention relates to the technical field of tools for power construction, in particular to a pulley mechanism for paying off a power cable for power construction.

Background

The prior art discloses a pulley mechanism for paying off a power cable for power construction with application number CN201610131299.3, which comprises: the base frame is of a U-shaped structure and comprises a lower cross beam and two lower upright posts; the cross shaft is in a round rod shape, and two ends of the cross shaft are respectively erected on the two lower upright posts; the roller is cylindrical and can be rotatably sleeved on the cross shaft, and the surfaces of two end parts of the roller are provided with a plurality of screw holes along the length direction of the roller; the two side baffles are both disc-shaped, and the edges of the two side baffles are provided with radially extending through holes; the fixing bolts penetrate through the through holes of the side baffles and are screwed into the screw holes of the roller, so that the two side baffles are respectively fixed at the two end parts of the roller; the sealing bracket is of an inverted U-shaped structure and comprises an upper cross beam and two upper stand columns; the two upper upright columns are respectively connected with the two lower upright columns; the hook is fixed above the middle part of the upper cross beam of the sealing support. The invention can adapt to various types of cables, can easily pass through the joint of the cable, and can not generate the phenomenon of wire clamping.

Above-mentioned patent weak point lies in, it can be applicable to each type of cable, but the cable is then not stable in the transportation process, and the cable can rock, and the cable can offset with the side shield when rocking, so can collide pulley mechanism, not only can damage the outer wall of cable, and also can reduce pulley mechanism's life, therefore we have designed a pulley mechanism for electric power cable unwrapping wire for electric power construction and have solved above problem.

Disclosure of Invention

The pulley mechanism for paying off the power cable for power construction is provided for overcoming the defects in the prior art, can buffer a swaying cable, can weaken the collision strength of the pulley mechanism, can protect the pulley mechanism, is convenient to mount and dismount a support plate, is convenient and quick to operate, can limit the cable, is not easy to jump, and is good in practicability.

In order to achieve the purpose, the invention adopts the following technical scheme:

a pulley mechanism for paying off a power cable for power construction comprises a U-shaped base, wherein a roller is arranged in the U-shaped base, a bolt penetrates through the U-shaped base and is rotatably connected with the roller, a nut is connected to the bolt in a threaded manner and abuts against the outer wall of the U-shaped base, a support plate is arranged above the U-shaped base, two guide posts are fixedly connected to the bottom of the support plate, two guide grooves are formed above the U-shaped base, the two guide posts extend into the opposite guide grooves respectively and are in sliding connection with the guide grooves, a hook is fixedly connected to the upper end of the support plate, a first baffle and two second baffles are sleeved on the outer wall of the roller and are in sliding connection with the roller, the two second baffles are located between the two first baffles, and a plurality of buffer protection mechanisms are arranged between the first baffle and the second baffle on the same side, two be equipped with adjustment mechanism, two between first baffle and the U type base the upper end of first baffle all is equipped with the mounting groove, two all install the installation piece in the mounting groove, two the installation piece all rotates through dwang and extension board to be connected, two all be equipped with latch mechanism between the first baffle of installation piece and homonymy.

Preferably, the first baffle and the second baffle are both annular plates, and the outer diameter of the first baffle is smaller than that of the second baffle.

Preferably, the buffering protection mechanism includes the piston cylinder with first baffle fixed connection, sliding connection has the piston in the piston cylinder, the first spring of fixedly connected with between the inner wall of piston and piston cylinder, it is equipped with a plurality of through-holes to run through on the piston cylinder, the other end fixedly connected with slide bar of piston, the slide bar runs through the piston cylinder and rather than sliding connection, slide bar and second baffle fixed connection.

Preferably, adjustment mechanism includes and rotates the first screw rod of being connected with U type base inner wall, the other end fixedly connected with second screw rod of first screw rod, the second screw rod runs through U type base and is connected rather than rotating, the other end fixedly connected with handle of second screw rod, first screw rod and second screw rod run through two first baffles respectively and rather than threaded connection, two run through being equipped with logical groove on the second baffle, first screw rod and second screw rod run through the logical groove setting of homonymy respectively.

Preferably, the first screw and the second screw have opposite thread directions.

Preferably, the upper end of dwang is rotated with the bottom of extension board and is connected, the lower extreme of dwang rotates with the upper end of installation piece, and two the dwang is "eight" word setting of falling.

Preferably, the clamping mechanism is including setting up the sliding tray on the installation piece, sliding connection has the sliding block in the sliding tray, fixedly connected with second spring between sliding block and the sliding tray, run through on the first baffle be equipped with the communicating spacing groove of mounting groove, the sliding block runs through the spacing groove and offsets rather than.

Preferably, first baffle and the one end fixedly connected with rectangular block that the second baffle carried on the back mutually, run through on the rectangular block be equipped with rather than the sliding connection bolt, the endotheca is equipped with the third spring on the bolt, the both ends of third spring respectively with rectangular block and bolt fixed connection, the one end that the rectangular block was kept away from to the sliding block is equipped with the inclined plane, fixedly connected with does not offset the wedge with the inclined plane on the bolt, be equipped with the draw-in groove on the sliding block, fixedly connected with L type piece on the bolt, L type piece extends to in the draw-in groove.

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

1. when the two first baffles move relatively, the cable limiting device can be suitable for cables with small outer diameters, the two first baffles move relatively to drive the two rotating rods to rotate so as to drive the support plate to move downwards, and therefore the cables with small outer diameters can be limited; when the two first baffle plates move back to back, the cable limiting device can be suitable for cables with large outer diameters, the two first baffle plates move back to drive the two rotating rods to rotate, and further drive the support plate to move upwards, so that the cables with large outer diameters can be limited; the height of the support plate changes along with the change of the distance between the two first baffles.

2. In-process that the cable was carried, the cable can collide with the second baffle, can slow down the intensity that the cable collided the second baffle through first spring, simultaneously, if the cable skew then can extrude the second baffle, second baffle band driven slide bar and piston removal, piston extrusion air passes through the through-hole and discharges, and the speed of through-hole restriction exhaust air so can effectual cable extrusion collision's dynamics cushion, realizes pulley mechanism's protection.

3. When needs are dismantled the extension board, the staff can the manual pulling bolt, and the bolt removes and drives the wedge and remove, and the wedge removes extrusion sliding block and slides to the sliding tray, when the wedge no longer offsets with the inclined plane, the sliding block breaks away from the spacing groove this moment, so can dismantle the installation piece, and then realize the dismantlement to the extension board.

In conclusion, the cable buffer device is reasonable in structure, can buffer a swaying cable, can weaken the collision strength of the pulley mechanism, realizes the protection of the pulley mechanism, is convenient to install and disassemble the support plate, is convenient and quick to operate, can limit the cable to enable the cable not to jump easily, and is good in practicability.

Drawings

Fig. 1 is a cross-sectional view of a pulley mechanism for paying off a power cable for power construction according to the present invention;

fig. 2 is a front view of a pulley mechanism for paying off a power cable for power construction according to the present invention;

fig. 3 is a schematic connection diagram of a buffer protection mechanism in a pulley mechanism for paying off a power cable for power construction according to the present invention;

fig. 4 is an enlarged view of a structure a in fig. 1.

In the figure: the device comprises a 1U-shaped base, 2 bolts, 3 support plates, 4 guide columns, 5 guide grooves, 6 nuts, 7 first screw rods, 8 second screw rods, 9 first baffle plates, 10 second baffle plates, 11 rollers, 12 rotating rods, 13 hooks, 14 handles, 15 buffer protection mechanisms, 16 piston cylinders, 17 through holes, 18 first springs, 19 pistons, 20 sliding rods, 21 mounting grooves, 22 mounting blocks, 23 sliding grooves, 24 second springs, 25 sliding blocks, 26 bolts, 27 rectangular blocks, 28 third springs, 29 wedge blocks, 30 clamping grooves and 31L-shaped blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-4, a pulley mechanism for paying off a power cable for power construction comprises a U-shaped base 1, a roller 11 is arranged in the U-shaped base 1, a bolt 2 is installed on the U-shaped base 1 in a penetrating mode, the bolt 2 penetrates through the roller 11 and is rotatably connected with the roller, a nut 6 is connected to the bolt 2 in a threaded mode, the nut 6 abuts against the outer wall of the U-shaped base 1, a supporting plate 3 is arranged above the U-shaped base 1, two guide posts 4 are fixedly connected to the bottom of the supporting plate 3, two guide grooves 5 are arranged above the U-shaped base 1, the two guide posts 4 respectively extend into the corresponding guide grooves 5 and are in sliding connection with the guide grooves, and through the matching of the guide posts 4 and the guide grooves 5, the supporting plate 3 can be guided, and the supporting plate 3 can be limited so that the supporting plate 3.

The upper end fixedly connected with couple 13 of extension board 3, the outer wall cover of cylinder 11 is equipped with rather than sliding connection's first baffle 9 and two second baffles 10, and two second baffles 10 are located between two first baffles 9, and first baffle 9 and second baffle 10 are the annular plate, and the external diameter of first baffle 9 is less than the external diameter of second baffle 10.

Be equipped with a plurality of buffering protection mechanisms 15 between the first baffle 9 of homonymy and the second baffle 10, buffering protection mechanism 15 includes the piston barrel 16 with first baffle 9 fixed connection, sliding connection has piston 19 in the piston barrel 16, first spring 18 of fixedly connected with between the inner wall of piston 19 and piston barrel 16, it is equipped with a plurality of through-holes 17 to run through on the piston barrel 16, piston 19's other end fixedly connected with slide bar 20, slide bar 20 runs through piston barrel 16 and rather than sliding connection, slide bar 20 and second baffle 10 fixed connection, cooperation through first spring 18 and through-hole 17, can slow down the intensity of cable in moving to second baffle 10 collision, thereby realize the protection to pulley mechanism.

Be equipped with adjustment mechanism between two first baffles 9 and the U type base 1, adjustment mechanism includes the first screw rod 7 of being connected with the rotation of U type base 1 inner wall, the other end fixedly connected with second screw rod 8 of first screw rod 7, second screw rod 8 runs through U type base 1 and is connected rather than the rotation, the other end fixedly connected with handle 14 of second screw rod 8, first screw rod 7 and second screw rod 8 run through two first baffles 9 respectively and rather than threaded connection, run through on two second baffles 10 and be equipped with logical groove, first screw rod 7 and second screw rod 8 run through the logical groove setting of homonymy respectively, the screw thread opposite direction of first screw rod 7 and second screw rod 8, can adjust the distance between two second baffles 10, thereby can carry on spacingly to the cable of different models.

The upper end of two first baffles 9 all is equipped with mounting groove 21, all installs installation piece 22 in two mounting grooves 21, and two installation pieces 22 all rotate with extension board 3 through dwang 12 and are connected, and the upper end of dwang 12 is rotated with the bottom of extension board 3 and is connected, and the lower extreme of dwang 12 rotates with the upper end of installation piece 22, and two dwang 12 are "eight" word setting of falling.

All be equipped with latch mechanism between two installation pieces 22 and the first baffle 9 of homonymy, latch mechanism is including setting up the sliding tray 23 on installation piece 22, sliding tray 23 sliding connection has a sliding block 25, fixedly connected with second spring 24 between sliding block 25 and the sliding tray 23, run through on the first baffle 9 be equipped with the communicating spacing groove of mounting groove 21, sliding block 25 runs through the spacing groove and offsets rather than.

First baffle 9 and the one end fixedly connected with rectangular block 27 that second baffle 10 carried on the back mutually, run through on the rectangular block 27 be equipped with rather than sliding connection bolt 26, the cover is equipped with third spring 28 on the bolt 26, the both ends of third spring 28 respectively with rectangular block 27 and bolt 26 fixed connection, the one end that rectangular block 27 was kept away from to sliding block 25 is equipped with the inclined plane, fixedly connected with does not offset wedge 29 with the inclined plane on the bolt 26, be equipped with draw-in groove 30 on the sliding block 25, fixedly connected with L type piece 31 on the bolt 26, L type piece 31 extends to in the draw-in groove 30, cooperation through L type piece 31 and draw-in groove 30, can carry out fixed once more to sliding block 25, and simultaneously, also can dismantle sliding block 25.

In the invention, when cables of different types need to be conveyed, a worker can manually rotate the handle 14, the handle 14 rotates to drive the first screw 7 and the second screw 8 to rotate, and the first baffle plates 9 cannot rotate on the roller 11 due to the fact that the thread directions of the first screw 7 and the second screw 8 are opposite, so that the two first baffle plates 9 can move oppositely or oppositely, and the two second baffle plates 10 can move oppositely or oppositely;

when the two first baffle plates 9 move relatively, the cable limiting device can be suitable for cables with small outer diameters, the two first baffle plates 9 move relatively to drive the two rotating rods 12 to rotate, and further drive the support plate 3 to move downwards, so that the cables with small outer diameters can be limited;

when the two first baffle plates 9 move back to back, the cable limiting device can be suitable for cables with large outer diameters, the two first baffle plates 9 move back to drive the two rotating rods 12 to rotate, and further drive the support plate 3 to move upwards, so that the cables with large outer diameters can be limited;

the height of the support plate 3 thus varies as the distance between the two first baffles 9 varies;

in the process of conveying the cable, the cable collides with the second baffle 10, the strength of the cable colliding with the second baffle 10 can be relieved through the first spring 18, meanwhile, if the cable deviates, the second baffle 10 is extruded, the second baffle 10 drives the sliding rod 20 and the piston 19 to move, the piston 19 extrudes air and discharges the air through the through hole 17, and the through hole 17 limits the speed of the discharged air, so that the force of the cable extruding collision can be effectively buffered, and the pulley mechanism can be protected;

when the support plate 3 needs to be disassembled, a worker can manually pull the plug pin 26, the plug pin 26 moves to drive the wedge block 29 to move, the wedge block 29 moves to extrude the sliding block 25 to slide into the sliding groove 23, and at the moment, the L-shaped block 31 is separated from the clamping groove 30; when the wedge block 29 is not abutted against the inclined surface any more, the sliding block 25 is separated from the limiting groove, so that the mounting block 22 can be dismounted, and the support plate 3 can be dismounted; when the installation is carried out, the bolt 26 is pulled firstly, then the sliding block 25 is pressed into the sliding groove 23, the installation block 22 is installed in the installation groove 21, when the sliding block 25 is opposite to the limiting groove, under the action of the second spring 24, the sliding block 25 is abutted against the wedge block 29, then the bolt 26 is slowly loosened, the bolt 26 is not completely reset, at the moment, the sliding block 25 extends into the limiting groove, the L-shaped block 31 is abutted against the sliding block 25, when the bolt 26 is completely loosened, the L-shaped block 31 is inserted into the clamping groove 30, the installation of the installation block 22 is realized, and the stability after installation is sufficient.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A pulley mechanism for paying off a power cable for power construction comprises a U-shaped base (1) and is characterized in that a roller (11) is arranged in the U-shaped base (1), a bolt (2) penetrates through the U-shaped base (1), the bolt (2) penetrates through the roller (11) and is rotatably connected with the roller, a nut (6) is connected onto the bolt (2) in a threaded manner, the nut (6) abuts against the outer wall of the U-shaped base (1), a support plate (3) is arranged above the U-shaped base (1), two guide columns (4) are fixedly connected to the bottom of the support plate (3), two guide grooves (5) are arranged above the U-shaped base (1), the two guide columns (4) respectively extend into the opposite guide grooves (5) and are slidably connected with the opposite guide grooves, and a hook (13) is fixedly connected to the upper end of the support plate (3), the outer wall cover of cylinder (11) is equipped with rather than sliding connection's first baffle (9) and two second baffle (10), two second baffle (10) are located between two first baffle (9), the homonymy be equipped with a plurality of buffering protection mechanism (15), two between first baffle (9) and second baffle (10) be equipped with adjustment mechanism, two between first baffle (9) and U type base (1) the upper end of first baffle (9) all is equipped with mounting groove (21), two all install installation piece (22), two in mounting groove (21) installation piece (22) all rotate with extension board (3) through dwang (12) and are connected, two all be equipped with clamping mechanism between installation piece (22) and the first baffle (9) of homonymy.

2. The pulley mechanism for paying off the power cable for power construction according to claim 1, wherein the first baffle plate (9) and the second baffle plate (10) are both annular plates, and the outer diameter of the first baffle plate (9) is smaller than that of the second baffle plate (10).

3. The pulley mechanism for paying off the power cable for power construction according to claim 1, wherein the buffering protection mechanism (15) comprises a piston cylinder (16) fixedly connected with the first baffle plate (9), a piston (19) is slidably connected in the piston cylinder (16), a first spring (18) is fixedly connected between the piston (19) and the inner wall of the piston cylinder (16), a plurality of through holes (17) are formed in the piston cylinder (16) in a penetrating manner, a sliding rod (20) is fixedly connected to the other end of the piston (19), the sliding rod (20) penetrates through the piston cylinder (16) and is slidably connected with the piston cylinder, and the sliding rod (20) is fixedly connected with the second baffle plate (10).

4. The pulley mechanism for paying off the power cable for power construction according to claim 1, wherein the adjusting mechanism comprises a first screw (7) rotatably connected with the inner wall of the U-shaped base (1), the other end of the first screw (7) is fixedly connected with a second screw (8), the second screw (8) penetrates through the U-shaped base (1) and is rotatably connected with the U-shaped base, the other end of the second screw (8) is fixedly connected with a handle (14), the first screw (7) and the second screw (8) respectively penetrate through the two first baffles (9) and are in threaded connection with the two first baffles, through grooves are formed in the two second baffles (10), and the first screw (7) and the second screw (8) respectively penetrate through the through grooves on the same side.

5. The pulley mechanism for paying off power cables in power construction according to claim 4, wherein the first screw (7) and the second screw (8) have opposite thread directions.

6. The pulley mechanism for paying off a power cable for power construction as claimed in claim 1, wherein the upper end of the rotating rod (12) is rotatably connected with the bottom of the support plate (3), the lower end of the rotating rod (12) is rotatably connected with the upper end of the mounting block (22), and the two rotating rods (12) are arranged in an inverted "eight" shape.

7. The pulley mechanism for paying off the power cable for power construction according to claim 1, wherein the clamping mechanism comprises a sliding groove (23) formed in the mounting block (22), a sliding block (25) is connected in the sliding groove (23) in a sliding manner, a second spring (24) is fixedly connected between the sliding block (25) and the sliding groove (23), a limiting groove communicated with the mounting groove (21) is formed in the first baffle plate (9) in a penetrating manner, and the sliding block (25) penetrates through the limiting groove and abuts against the limiting groove.

8. The pulley mechanism of electric power cable unwrapping wire for power construction according to claim 7, characterized in that, the one end fixedly connected with rectangular block (27) that first baffle (9) and second baffle (10) carried on the back mutually, run through on rectangular block (27) and be equipped with rather than sliding connection bolt (26), the cover is equipped with third spring (28) on bolt (26), the both ends of third spring (28) respectively with rectangular block (27) and bolt (26) fixed connection, the one end that rectangular block (27) were kept away from in sliding block (25) is equipped with the inclined plane, fixedly connected with wedge (29) that do not offset with the inclined plane on bolt (26), be equipped with draw-in groove (30) on sliding block (25), fixedly connected with L type piece (31) on bolt (26), L type piece (31) extend to in draw-in groove (30).