CN218024616U

CN218024616U - Take ladder that closes of pay off rack function

Info

Publication number: CN218024616U
Application number: CN202221775796.4U
Authority: CN
Inventors: 李志强; 王冬冬; 冯永强; 刁海路
Original assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Current assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-12-13
Anticipated expiration: 2032-07-11

Abstract

The utility model relates to a close the ladder field, concretely relates to take ladder that closes of pay off rack function. The ladder comprises a main ladder and an auxiliary ladder, wherein the top of the auxiliary ladder is hinged with the upper half part of the main ladder; the top of the main ladder is provided with a cable auxiliary limiting structure, and a cable winding and unwinding structure is arranged between the first ladder and the second ladder of the auxiliary ladder; the cable auxiliary limiting structure comprises a supporting plate, and a plurality of cable clamping brackets are arranged on the supporting plate; the cable take-up and pay-off structure comprises a middle shaft which is detachably and rotatably arranged between two supporting legs of the auxiliary ladder, a plurality of groups of cable coils are rotatably arranged on the middle shaft, and the number of the cable coils is the same as that of the cable clamping supports; the central shaft is provided with a chuck nut which is used for preventing the cable coil from sliding. The utility model discloses to close two kinds of instrument combinations of ladder and pay off rack and be in the same place, it is changeable to be suitable for the scene, and it is nimble convenient to use, has improved constructor's convenience of carrying the instrument.

Description

Take ladder that closes of pay off rack function

Technical Field

The utility model relates to a close the ladder field, concretely relates to take ladder that closes of pay off rack function.

Background

In the industrial building and the home decoration field, when newly-increasing commercial power supply line, need use tools such as ladder and pay off rack, constructor need carry tools such as ladder and pay off rack simultaneously when the construction, it is comparatively inconvenient. And the common ladder has a single structure and cannot be suitable for various scenes. The common pay-off rack has a complex structure and needs more parts,

and: 1. most pay-off reels are of a bearingless structure, so that the pay-off resistance is large, and the construction efficiency is influenced; 2. the structure without a chuck causes that the wire coil moves left and right on the wire spool during paying off, and the operation is inconvenient; 3. one to three commercial power cables cannot be flexibly selected and released according to construction requirements; 4. constructors need to carry two tools, namely a ladder closing tool and a pay-off rack, during construction, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a take ladder that closes of pay off rack function, its aim at overcome the shortcoming that prior art exists.

In order to achieve the above purpose, the technical scheme of the utility model is that:

the utility model provides a take ladder that closes of pay off rack function, including main ladder and vice ladder, the top of vice ladder with the first one of main ladder is articulated. The top of the main ladder is provided with a cable auxiliary limiting structure, and a cable winding and unwinding structure is arranged between the first ladder and the second ladder of the auxiliary ladder.

The auxiliary cable limiting structure comprises a supporting plate which can move up and down through a lifting structure and is arranged at the top of the main ladder, and a plurality of wire clamping supports are arranged on the supporting plate. The wire clamping support comprises a rectangular frame arranged on the supporting plate, a cable moving area is arranged on one side inside the rectangular frame, idler wheels are arranged on the front side and the rear side of the cable moving area respectively, S-shaped elastic clamping plates are symmetrically arranged on the other side inside the rectangular frame, and a wire clamping groove is defined by the two S-shaped elastic clamping plates.

The cable winding and unwinding structure comprises a middle shaft which is detachably and rotatably arranged between two supporting legs of the auxiliary ladder, a plurality of groups of cable drums are rotatably arranged on the middle shaft, and the number of the cable drums is the same as that of the cable clamping supports. The central shaft is provided with a chuck nut which is used for preventing the cable coil from sliding.

Furthermore, a limiting belt is arranged between the pedal at the top of the main ladder and the pedal at the top of the auxiliary ladder.

Further, the lifting structure comprises a screw, a guide rod and an adjusting bolt; the top of two landing legs of main ladder is provided with the pipe of inside extension respectively, screw rod and guide bar slidable setting up from top to bottom respectively in one the pipe. The adjusting bolt is rotatably arranged at the top of one guide pipe, the adjusting bolt is sleeved on the screw rod, and the screw rod can be driven to move up and down by rotating the adjusting bolt.

Furthermore, one end of the middle shaft is provided with a circular stop, the other end of the middle shaft is provided with a circular through hole, and an L-shaped stop is inserted into the circular through hole.

Furthermore, two support legs of the auxiliary ladder are respectively provided with an ear hook, and two ends of the middle shaft are respectively lapped on the ear hooks.

Further, the cable drum comprises a chuck and a support body chuck, and the chuck and the support body chuck are detachably arranged on the middle shaft through bearings.

The utility model discloses the beneficial effect who reaches does:

the utility model discloses to close two kinds of instrument combinations of ladder and pay off rack and be in the same place, it is changeable to be suitable for the scene, and it is nimble convenient to use, has improved constructor's convenience of carrying the instrument.

In addition, the cable drum is internally provided with a bearing structure, so that the paying-off is labor-saving, and the working efficiency is improved; the design of the chuck nut prevents the cable coil from moving left and right during paying off, and improves the convenience of construction.

The utility model discloses can release many utility cables simultaneously according to the construction demand, satisfy many scenes construction demand, when using nimble convenience, improve work efficiency.

Furthermore, the utility model discloses being provided with the supplementary limit structure of cable at close ladder top, constructor can be with cable head card above that, does not need constructor to climb up during the construction and climb down and pick up the cable, only needs during the use to pull the cable active area alright take the cable, has improved the convenience of work, alone alright accomplish whole work.

Drawings

Fig. 1 is the structure schematic diagram of the utility model when paying out.

Fig. 2 is a schematic structural diagram after the wire releasing of the utility model is finished.

Fig. 3 is a partial enlarged view of the hinge of the main ladder and the auxiliary ladder of the present invention.

Fig. 4 is a partial enlarged view of the ear hook of the present invention.

Fig. 5 is a partially enlarged view of the cable reel of the present invention mounted on the ear hook.

Fig. 6 is an exploded view of the cable winding and unwinding structure of the present invention.

Fig. 7 is a cross-sectional view of the cable winding and unwinding structure of the present invention.

Fig. 8 is a use state diagram of the cable winding and unwinding structure of the present invention.

Fig. 9 is a partial enlarged view of the auxiliary cable limiting structure of the present invention.

Fig. 10 is a partially enlarged view of the wire clamping bracket of the present invention.

In the figure, 1, a main ladder; 11. a limiting band; 2. an auxiliary ladder; 21. ear hanging; 3. a middle shaft; 4. a chuck nut; 51. a chuck; 52. a support chuck; 53. a bearing; 6. a cable; 7. an L-shaped stop; 8. a cable auxiliary limiting structure; 81. a support plate; 82. a screw; 83. a guide bar; 84. adjusting the bolt; 85. a wire clamping bracket; 851. a rectangular frame; 852. an S-shaped elastic clamping plate; 853. a cable active area; 854. a wire clamping groove; 855. and a roller.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1-10, the utility model provides a take ladder that closes of pay off rack function, including main ladder 1 and vice ladder 2, the top of vice ladder 2 with the first half of main ladder 1 is articulated. The upper portion of main ladder 1 and the top both sides of vice ladder 2 respectively open there is the through-hole, and two ladders are in the same place through the riveting post that passes its through-hole, and riveting post length slightly is greater than the sum of the thickness of two ladders, and two ladders open and shut in a flexible way. The footboard of 1 top of main ladder with be provided with spacing area 11 between the footboard of 2 tops of vice ladder, spacing area 11 is used for restricting the separately-arranged scope of two ladders, the material of spacing area 11 is the nylon material. The top of the main ladder 1 is provided with a cable auxiliary limiting structure 8, and a cable winding and unwinding structure is arranged between the first ladder and the second ladder of the auxiliary ladder 2.

The cable auxiliary limiting structure 8 comprises a supporting plate 81 which is arranged at the top of the main ladder 1 and can move up and down through a lifting structure, a plurality of wire clamping supports 85 are arranged on the supporting plate 81, and the following description takes three wire clamping supports 85 as an example. The lifting structure comprises a screw rod 82, a guide rod 83 and an adjusting bolt 84; the tops of the two legs of the main ladder 1 are respectively provided with a guide tube extending inwards, and the screw 82 and the guide rod 83 are respectively arranged in one guide tube in a vertically sliding manner. The adjusting bolt 84 is rotatably arranged at the top of one of the guide pipes, the adjusting bolt 84 is sleeved on the screw rod 82, and the adjusting bolt 84 is rotated to drive the screw rod 82 to move up and down, so that the supporting plate 81 is driven to move up and down.

The wire clamping bracket 85 comprises a rectangular frame 851 arranged on the supporting plate 81 through screws, one side inside the rectangular frame 851 is a cable active area 853, and rollers 855 are respectively arranged on the front side and the rear side of the cable active area 853 to reduce friction force so as to prevent the rectangular frame 851 from rubbing against the cable 6 when the cable 6 is dragged, thereby preventing the cable 6 from being damaged; the other side inside rectangular frame 851 is provided with S type elastic clamping plates 852 symmetrically, and two S type elastic clamping plates 852 enclose a wire clamping groove 854. The inlet of the wire clamping groove 854 is splayed so as to facilitate the clamping of a cable.

Further, the inner sides of the four borders of the rectangular frame 851 are rounded and polished smooth to prevent the rectangular frame 851 from rubbing the cable 6 when the cable 6 is dragged, so that the cable 6 is damaged.

The two supporting legs of the auxiliary ladder 2 are respectively provided with an ear hook 21, and the ear hooks 21 are tightly fixed on the supporting legs through an upper rivet and a lower rivet. The cable take-up and pay-off structure comprises a central shaft 3 which is detachably and rotatably lapped on the ear hook 21, one end of the central shaft 3 is provided with a circular stop, the diameter of the circular stop is slightly larger than the width of the ear hook 21 on the auxiliary ladder 2; the other end of the middle shaft 3 is provided with a circular through hole, an L-shaped stop 7 is inserted into the circular through hole, and the L-shaped stop 7 is used for penetrating through the circular through hole at the tail end of the middle shaft 3 to play a limiting role. The middle shaft 3 is rotatably provided with a plurality of groups of cable coils, the number of the cable coils is the same as that of the cable clamping supports 85, and three groups of cable coils are taken as an example for explanation. Four sections of threads are formed in the middle section of the middle shaft 3 according to the width of the cable drum, a chuck nut 4 is arranged on the middle shaft 3, and the chuck nut 4 is used for preventing the cable drum from sliding.

Further, the cable drum comprises a chuck plate 51 and a support chuck 52, and the chuck plate 51 and the support chuck 52 are detachably arranged on the central shaft 3 through a bearing 53. The chuck 51 is a disk made of plastic (nylon 66) and has 3 pieces. The disk is provided with a through hole, and a bearing 53 with a smaller width ratio and a dustproof cover is arranged in the disk. The bearing 53 has a width substantially equal to the thickness of the chuck 51; the outer diameter of the bearing 53 is equal to or slightly smaller than the diameter of the disc through hole, and the outer ring of the bearing 53 is bonded with the disc through hole; the inner diameter of the bearing 53 is slightly larger than the diameter of the middle shaft 3, so that the middle shaft 3 passes through the inner ring of the bearing 53. The support chucks 52 are T-shaped and made of plastic (nylon 66), and the number of the support chucks is 3. There is a through hole therein having a diameter equal to the diameter of the through hole of the chuck 51. Two ends of the bearing are respectively provided with a bearing 53 (with the same specification parameter as the bearing 53 of the chuck plate 51) with a smaller (width-diameter ratio) dustproof cover. The bearing 53 width is substantially equal to the disc thickness; the outer diameter of the bearing 53 is equal to or slightly smaller than the diameter of the disc through hole, and the outer ring of the bearing 53 is bonded with the inner wall of the disc through hole; the inner diameter of the bearing 53 is slightly larger than the diameter of the middle shaft 3, so that the middle shaft 3 passes through the bearing 53.

Furthermore, the chuck nuts 4 are hexagonal nuts and are made of plastic (nylon 66), and the number of the chuck nuts is 2. The nominal diameter of the nut is matched with the external diameter of the thread on the middle shaft 3, and the two threads are meshed. The diameter of the flange of the chuck nut 4 is larger than the inner diameter of the bearing 53 in the through hole of the cable drum, is basically equal to the diameter of the inner ring of the bearing 53 in the through hole of the cable drum, and is smaller than the diameter of the dust cap of the bearing 53 in the through hole of the cable drum.

When the combined ladder is used, the combined ladder is vertically placed on a plane of a construction site, then the main ladder 1 and the auxiliary ladder 2 are separated to a distance limited by the limiting belt 11, whether the combined ladder is firm and stable is checked, and the climbing operation can be started.

When the combined ladder is used as a pay-off rack, the combined ladder is vertically placed on the plane of a construction site, then the main ladder 1 and the auxiliary ladder 2 are separated to the distance limited by the limiting belt 11, and whether the combined ladder is firm and stable is checked; then taking down the pay-off rack from the ear hanger 21 of the auxiliary ladder 2, then taking down the L-shaped stop 7, then screwing down the chuck nut 4 at the tail end of the center shaft 3, then drawing the center shaft 3 out of an inner hole bearing 53 of a cable coil along the top end direction of the center shaft, and sequentially placing three chucks 51 and three support chucks 52 on a plane; then according to the number of the laid disc cables 6, such as 3 discs, sleeving the inner ring of the laid disc cable 6 on the cylindrical support body of the support body chuck plate 52; repeating the steps, and respectively sleeving 3 coils of cables 6 on the cylindrical supports on the 3 support chucks 52; then, sequentially passing the middle shaft 3 through a chuck plate 51, a support body chuck plate 52, a chuck plate 51 and a support body chuck plate 52 along the tail end direction of the middle shaft 3, then screwing a second chuck plate nut 4 onto a fourth section of threads of the middle shaft 3, and adjusting the chuck plate nuts 4 at two ends of the middle shaft 3 to lock three cable coils; then, two ends of a middle shaft 3 of the pay-off rack are placed on the ear hooks 21 on two sides of the auxiliary ladder 2, and the L-shaped stop 7 is inserted; then the supporting plate is lifted to a proper position through an adjusting bolt, so that the supporting plate is convenient for a worker to take; finally, the cable heads of the three coiled cables 6 are found out, penetrate into the cable active area 853 and then are clamped into the cable clamping groove 854, and then the paying-off work can be started. When getting the line, only need with cable 6 follow card wire casing 854 immigration cable activity area 853 can, take and can once more block cable 6 card wire casing 854 after finishing, do not need the workman to climb up and climb down.

When 1 or 2 coils of cables 6 are laid according to construction requirements, only 1 or 2 cable coils need to be used, the chuck nuts 4 are screwed to the 2 nd or 3 rd sections of threads on the middle shaft 3, the chuck nuts 4 on two sides of the middle shaft 3 are also rotated to clamp the cable coils, then two ends of the middle shaft 3 of the pay-off rack are placed on the ear hooks 21 on two sides of the auxiliary ladder 2, then the L-shaped stop 7 is inserted, the wire ends of the laid cables 6 are found out, and the pay-off construction is started.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A combined ladder with a pay-off rack function comprises a main ladder (1) and an auxiliary ladder (2), wherein the top of the auxiliary ladder (2) is hinged with the upper half part of the main ladder (1); the method is characterized in that: the top of the main ladder (1) is provided with a cable auxiliary limiting structure (8), and a cable winding and unwinding structure is arranged between the first ladder and the second ladder of the auxiliary ladder (2);

the cable auxiliary limiting structure (8) comprises a supporting plate (81) which can move up and down through a lifting structure and is arranged at the top of the main ladder (1), and a plurality of cable clamping supports (85) are arranged on the supporting plate (81); the wire clamping support (85) comprises a rectangular frame (851) arranged on the supporting plate (81), a cable moving area (853) is arranged on one side inside the rectangular frame (851), rollers (855) are respectively arranged on the front side and the rear side of the cable moving area (853), S-shaped elastic clamping plates (852) are symmetrically arranged on the other side inside the rectangular frame (851), and a wire clamping groove (854) is formed by the two S-shaped elastic clamping plates (852);

the cable take-up and pay-off structure comprises a middle shaft (3) which is detachably and rotatably arranged between two support legs of the auxiliary ladder (2), a plurality of groups of cable coils are rotatably arranged on the middle shaft (3), and the number of the cable coils is the same as that of the cable clamping supports (85); the middle shaft (3) is provided with a chuck nut (4), and the chuck nut (4) is used for preventing the cable coil from sliding.

2. The ladder that closes of pay off rack function of taking of claim 1, its characterized in that: and a limiting belt (11) is arranged between the uppermost pedal of the main ladder (1) and the uppermost pedal of the auxiliary ladder (2).

3. The ladder that closes of pay off rack function of taking of claim 1, its characterized in that: the lifting structure comprises a screw rod (82), a guide rod (83) and an adjusting bolt (84); the tops of two supporting legs of the main ladder (1) are respectively provided with a guide pipe extending inwards, and the screw rod (82) and the guide rod (83) are respectively arranged in one guide pipe in a vertically sliding manner; the adjusting bolt (84) is rotatably arranged at the top of one guide pipe, the adjusting bolt (84) is sleeved on the screw rod (82), and the screw rod (82) can be driven to move up and down by rotating the adjusting bolt (84).

4. The ladder that closes of taking pay off rack function of claim 1, characterized in that: one end of the middle shaft (3) is provided with a circular stop, the other end of the middle shaft is provided with a circular through hole, and an L-shaped stop (7) is inserted into the circular through hole.

5. The ladder that closes of pay off rack function of taking of claim 4, its characterized in that: the two supporting legs of the auxiliary ladder (2) are respectively provided with an ear hook (21), and two ends of the middle shaft (3) are respectively lapped on the ear hooks (21).

6. The ladder that closes of pay off rack function of taking of claim 1, its characterized in that: the cable drum comprises a chuck (51) and a support body chuck (52), wherein the chuck (51) and the support body chuck (52) are detachably arranged on the middle shaft (3) through bearings (53).