CN109653673B - Ladder for house ceiling decoration - Google Patents

Abstract

The invention discloses a ladder for house ceiling decoration, which is characterized by comprising a herringbone ladder, wherein the herringbone ladder comprises two symmetrically-arranged straight ladders, the top of the straight ladder is connected with a supporting seat, the lower sides of the two supporting seats are connected through a hinge, one side of the supporting seat is provided with a fetching device, the fetching device comprises a placing table and a placing basket, the middle part of the placing table is provided with a fetching hole for the placing basket to pass through, the two opposite sides of the placing basket are both connected with thin ropes, the placing table and one side of a connecting plate are connected through a side plate, the side plate is rotatably connected with a winding assembly for winding the thin ropes, and the upper side of the placing table is provided with two guide assemblies for guiding the thin ropes. Compared with a mode of climbing down and up, the multifunctional ladder is more labor-saving, and is dangerous and inconvenient to climb by one hand only when a user holds objects such as a hairbrush and the like, particularly under the condition of high ceiling; the object placing table can also provide an area for placing objects, and the decoration efficiency is convenient to improve.

Description

Ladder for house ceiling decoration

Technical Field

The invention relates to the field of tools for decoration, in particular to a ladder for house ceiling decoration.

Background

The house decoration involves a wide variety of items, and the tools used are also various. For ceiling decoration, by means of tools such as a herringbone ladder and a straight ladder, construction personnel can stand at a high position to carry out processes such as keel installation, gypsum board installation, paint coating and the like on a ceiling. The herringbone ladder is most commonly used, and constructors can sit at the top of the herringbone ladder, so that the stability is high relative to a mode of standing on a ladder platform, and the users do not need to worry about falling and being injured.

Chinese patent with publication number CN106698249A discloses a lifting platform for house ceiling decoration, which comprises a base and two hollow pillars, wherein each hollow pillar is internally provided with a lifting pillar, the top of each hollow pillar is provided with a transverse supporting rod, four corners of the two supporting rods are respectively provided with a supporting plate through springs, the inner side of each hollow pillar is provided with an operating pedal through a sliding sleeve of a channel steel structure, the lifting pillars and the operating pedals are respectively connected through two traction ropes arranged on a speed reducer on the base to realize lifting, and a plurality of trundles are distributed below the base.

The lifting platform has the following technical problems: when the fitment personnel need take articles such as paint vehicle, brush, must climb down from the elevating platform earlier, hold article again and climb up, it is more troublesome, perhaps hand over to the people on the bench by the companion, but hand over in-process people on the bench need bow to take, in case the focus is unstable just fall easily, it is unsafe, wait to improve.

Disclosure of Invention

Aiming at the technical defects, the invention aims to provide a ladder for house ceiling decoration, which can ensure that decoration personnel can safely take required articles without climbing down a herringbone ladder.

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

a ladder for house ceiling decoration comprises a herringbone ladder, wherein the herringbone ladder comprises two symmetrically arranged straight ladders, the top of the straight ladder is connected with a supporting seat, the lower sides of the two supporting seats are connected through a hinge, one side of the supporting seat is provided with a fetching device which comprises a placing table and a placing basket, one end of the object placing table facing the supporting seat is connected with a connecting plate, the connecting plate is connected with the supporting seat through a connecting bolt, the connecting plate is provided with a waist-shaped hole for the rod part of the connecting bolt to pass through, the middle part of the object placing table is provided with an object taking hole for the object placing basket to pass through, the two opposite sides of the article placing basket are both connected with a string, the article placing table is connected with one side of the connecting plate through a side plate, the curb plate rotates and is connected with the rolling subassembly that is used for the rolling string, it is provided with two direction subassemblies that are used for the direction string to put thing platform upside.

Through adopting above-mentioned technical scheme, the companion places required article in putting the thing basket after, and the usable rolling component string of fitment personnel who sits on the supporting seat is curled up for it shifts up and passes from getting thing hole department to put the thing basket, and then makes fitment personnel can directly take required article. Compared with a mode of climbing down and up, the multifunctional ladder is more labor-saving, and is dangerous and inconvenient to climb by one hand only when a user holds objects such as a hairbrush and the like, particularly under the condition of high ceiling; the object placing table can also provide an area for placing objects, and the decoration efficiency is convenient to improve.

The invention is further configured to: the guide assembly includes first guide bar, second guide bar, third guide bar, fourth guide bar, fifth guide bar according to the order that the string was walked around in proper order, first guide bar and fourth guide bar are on a parallel with put thing platform and both ends and all rotate and cup joint with put thing platform fixed connection's connecting seat, mutually perpendicular between first guide bar and the fourth guide bar, second guide bar, third guide bar all rotate with putting the thing platform and be connected and mutually perpendicular, the fifth guide bar rotates with the curb plate and is connected and mutually perpendicular.

Through adopting above-mentioned technical scheme, the direction subassembly plays good guide effect for the string, and the rolling subassembly rolling of being convenient for goes on, is difficult to take place unexpected circumstances such as card dun, and the rolling is more laborsaving.

The invention is further configured to: the end parts of the second guide rod, the third guide rod and the fifth guide rod are fixedly connected with limit discs.

Through adopting above-mentioned technical scheme, the string is difficult to relatively break away from with the direction subassembly, guarantees that normal rolling goes on.

The invention is further configured to: the winding assembly comprises a winding shaft which is connected with the side plate in a rotating mode and used for winding the thin rope, two limiting rings used for limiting the thin rope are fixedly sleeved at the middle of the winding shaft, a rotating handle is fixedly connected to one end, away from the side plate, of the winding shaft, and a handle is connected to one end, away from the winding shaft, of the rotating handle.

Through adopting above-mentioned technical scheme, hold the handle and rotate around the rolling axle, just can realize the quick rolling of string.

The invention is further configured to: the curb plate upside is provided with the hinge hole, hinge hole department is provided with the fixed strip, fixedly connected with rotates the articulated shaft of being connected with the fixed strip between two relative inner walls of hinge hole, the orientation curb plate one side spacing ring outside interval is provided with the draw-in groove that a plurality of confession fixed strip cards are gone into, it is provided with and communicates and supply the accommodation hole that the fixed strip changes over to put the thing platform.

Through adopting above-mentioned technical scheme, the fixed strip rotates until when the draw-in groove is gone into to the card, and the spacing ring can't rotate, and the unexpected rotation of rolling axle and the trouble that leads to the string to be in disorder at ordinary times of being convenient for on the one hand, and on the other hand puts the position of thing basket and can relatively fixed.

The invention is further configured to: put thing platform upside and be provided with the supporting component who supports and put the thing basket, put the equal fixedly connected with connecting strip in the relative both sides of thing basket opening, supporting component includes that two are located the backing roll of getting thing hole top both sides respectively, the backing roll both ends are rotated and have been cup jointed and have been rotated the seat, the one end of keeping away from the backing roll of rotating the seat is connected with the axis of rotation, it is provided with the rotation groove that supplies the axis of rotation card to go into to get thing downthehole wall.

Through adopting above-mentioned technical scheme, put the thing basket and pass the discharge opening after, rotate the backing roll until it pushes up in the connecting strip downside, two backing rolls just can form stable support to the thing basket, are convenient for fix the position of putting the thing basket.

The invention is further configured to: get thing hole inner wall and be provided with and be used for blockking to rotate the seat toward putting thing platform downside pivoted locating part, the backing roll is located gets thing hole top when rotating the seat and hugging closely with the locating part.

Through adopting above-mentioned technical scheme, it is spacing and unable toward the downside rotation to receive the locating part to rotate the seat, need rotate two backing rolls to the trouble of putting the thing platform upside earlier when avoiding the pull-up to put the thing basket.

The invention is further configured to: the locating part includes spacing, spacing one end with rotate the seat and hug closely, the other end and rotate and be connected with spacing spring between the seat, spacing middle part downside fixedly connected with regulating strip, the regulating strip with put and be connected through adjusting bolt between the thing platform, the regulating strip is provided with the rectangular hole that supplies adjusting bolt pole portion to pass, get the threaded groove that thing downthehole wall was provided with and adjusting bolt threaded connection.

By adopting the technical scheme, after the adjusting bolt is unscrewed, the limiting piece can move up and down, so that the distance between the two supporting rollers and the limiting piece when the two supporting rollers are tightly attached to the limiting piece is adjusted, the adjustable support device is suitable for storage baskets with different widths, and the application range is wide; the limiting spring has a tensile force effect on the rotating seat, so that the rotating seat is not easy to separate from the limiting part, the placing stability of the placing basket is guaranteed, and when the placing basket needs to be placed, the two supporting rolls are pulled open by hands.

The invention is further configured to: put the thing basket and be connected with the coupling hook, string tip fixedly connected with overlaps the lantern ring on the coupling hook, it is provided with locating component to get the thing hole downside, locating component includes four locating plates that are located respectively and get each inner wall of thing hole, locating plate downside fixedly connected with flaring board, flaring board upside is connected with the fixed plate of L shape, the fixed plate with put and pass through fixing bolt and connect between the thing platform.

By adopting the technical scheme, the storage basket can be separated from the thin rope, so that the baskets with different sizes can be conveniently replaced; the positioning assembly can play a positioning and guiding role for the basket, so that the phenomenon that the basket is shaken to deviate in the upward pulling process is avoided, the trouble of aligning the material taking hole is avoided, and the smooth upward pulling of the basket is guaranteed.

In conclusion, the invention has the following beneficial effects: the decoration personnel take the needed articles by winding the string and lifting the article basket, so that the decoration equipment is safe and high in efficiency; on the other hand, the articles in the article basket are high in placing stability and are not easy to fall down due to operation of decoration personnel.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is an enlarged schematic view of area A of FIG. 1;

FIG. 3 is a schematic structural view of the fetching device in the embodiment;

FIG. 4 is an enlarged schematic view of region B of FIG. 3;

FIG. 5 is a schematic structural view of the fetching device in the embodiment after the string and the basket are removed;

FIG. 6 is an enlarged schematic view of region C of FIG. 5;

FIG. 7 is an exploded view from the perspective of FIG. 6;

fig. 8 is an enlarged schematic view of region D in fig. 5.

Description of reference numerals: 1. a fetching device; 2. a herringbone ladder; 21. a straight ladder; 22. a supporting seat; 23. a hinge; 3. a placing table; 31. a connecting plate; 311. a waist-shaped hole; 32. a side plate; 321. a hinge hole; 33. taking a hole; 34. an accommodation hole; 35. a rotating groove; 36. a thread groove; 4. a storage basket; 41. a connecting strip; 42. a connecting hook; 5. a connecting bolt; 6. a string; 61. a collar; 7. a winding component; 71. a winding shaft; 72. a limiting ring; 721. a card slot; 73. rotating the handle; 74. a grip; 75. a fixing strip; 76. hinging a shaft; 8. a guide assembly; 81. a first guide bar; 82. a second guide bar; 83. a third guide bar; 84. a fourth guide bar; 85. a fifth guide bar; 86. a connecting seat; 87. a limiting disc; 9. a support assembly; 91. a support roller; 92. a rotating seat; 93. a limiting member; 931. a limiting strip; 932. a limiting spring; 933. an adjustment bar; 9331. a strip hole; 934. adjusting the bolt; 94. a rotating shaft; 10. a positioning assembly; 101. positioning a plate; 102. an opening expanding plate; 103. a fixing plate; 104. and (5) fixing the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A ladder for house ceiling decoration comprises a herringbone ladder 2, wherein the herringbone ladder 2 comprises two symmetrical straight ladders 21, supporting seats 22 are fixedly connected to the tops of the straight ladders 21, and the lower sides of the two supporting seats 22 are connected through hinges 23. The decorating personnel can climb up along the vertical ladder 21 and straddle the supporting seat 22 to decorate the ceiling at a high position. The vertical ladder 21 may be a fixed ladder or an extension ladder depending on the use environment. Supporting seat 22 one side is provided with load handling device 1, and load handling device 1 can be convenient for the fitment personnel of eminence to take the required article of low department, for example: varnish, brush, mud scraper.

As shown in fig. 2 and fig. 3, the article taking device 1 includes an article placing platform 3 located on the same side of the two supporting seats 22, and an article placing basket 4 for placing the required articles, and the article placing platform 3 is fixedly connected with a connecting plate 31 towards the lower side of one end of the two supporting seats 22. Two connecting bolts 5 which are in threaded connection with the corresponding connecting seats 86 are movably arranged in the connecting plate 31 in a penetrating way, so that the object taking device 1 can be detached after the connecting bolts 5 are screwed off. The hole of the connecting plate 31 for the connecting bolt 5 to pass through is a kidney-shaped hole 311, so that the fetching device 1 can move up and down relative to the connecting seat 86 after the connecting bolt 5 is unscrewed. Put thing basket 4 and be square, put 3 middle parts of thing platform and be provided with the confession and put thing basket 4 and pass and be square getting thing hole 33, put thing basket 4 orientation or the both sides that deviate from supporting seat 22 all are connected with string 6, put between thing platform 3 and the connecting plate 31 one side through curb plate 32 fixed connection, the curb plate 32 outside is provided with the rolling subassembly 7 that is used for rolling string 6, it is provided with two direction subassemblies 8 that are used for direction string 6 to put 3 upsides of thing platform. After the fellow persons place the needed articles in the article holding basket 4, the finishing personnel sitting on the supporting seat 22 can roll up the string 6 of the rolling component 7, so that the article holding basket 4 moves upwards to pass through the article taking hole 33, and the finishing personnel can directly take the needed articles.

As shown in fig. 2, a positioning assembly 10 is disposed at the lower side of the object fetching hole 33, the positioning assembly 10 includes four positioning plates 101 parallel to the inner walls of the object fetching hole 33, a flared plate 102 is fixedly connected to the lower side of the positioning plate 101, and the flared plate 102 is bent towards the direction away from the object fetching hole 33 relative to the positioning plate 101. Therefore, the flaring plate 102 can play a guiding role, so as to avoid the trouble that the placing basket 4 is shaken to deviate in the process of pulling up, and then the placing basket 4 cannot be aligned with the material taking hole, and ensure the smooth pulling up of the placing basket 4. The upper side of the flaring plate 102 is fixedly connected with a fixing plate 103 which is L-shaped and clings to the lower side of the object placing table 3, and two fixing bolts 104 which are in threaded connection with the object placing table 3 penetrate through the fixing plate 103.

As shown in fig. 3 and 4, the two sides of the basket 4 facing or departing from the connecting plate 31 are fixedly connected with connecting hooks 42, the openings of the connecting hooks 42 face downwards, and the end of the string 6 is fixedly connected with a lantern ring 61 sleeved on the connecting hooks 42. The guide assembly 8 is provided with two ends which are respectively positioned at the upper side of the object placing table 3 and face and far away from the supporting seat 22, and the guide assembly 8 comprises a first guide rod 81, a second guide rod 82, a third guide rod 83, a fourth guide rod 84 and a fifth guide rod 85 according to the sequence that the strings 6 sequentially bypass.

The first guide rod 81 is positioned on one side of the upper side of the object placing table 3, which faces to or departs from the connecting plate 31, of the material taking hole, and the first guide rod 81 is parallel to the object placing table 3 and is parallel to the side face of the object taking basket, which faces to the connecting plate 31; the second guide rod 82 is positioned on one side of the first guide rod 81 departing from the article placing basket 4, and the second guide rod 82 is rotatably connected with the article placing table 3 and is vertical to the article placing table; the third guide rod 83 is positioned on one side of the second guide rod 82 facing the side plate 32, and the third guide rod 83 is rotatably connected with and vertical to the object placing table 3; the fourth guide rod 84 is positioned at the corner of the object placing table 3 and the side plate 32, the fourth guide rod 84 is parallel to the object placing table 3, two ends of the fourth guide rod 84 are rotatably sleeved with a connecting seat 86 fixedly connected with the object placing table 3, and the fourth guide rod 84 is perpendicular to the first guide rod 81; the fifth guide bar 85 is located at a lower side of the fourth guide bar 84, and the fifth guide bar 85 is rotatably connected to the side plate 32 and is perpendicular thereto.

The direction subassembly 8 plays good guide effect for string 6, and the rolling of the winding subassembly 7 of being convenient for goes on, is difficult to take place unexpected circumstances such as card pause, and the rolling is more laborsaving. The equal fixedly connected with diameter of second guide bar 82, third guide bar 83, the equal fixedly connected with diameter of fifth guide bar 85 is greater than spacing dish 87 of second guide bar 82 or third guide bar 83, and string 6 is difficult to break away from with direction subassembly 8 relatively, guarantees that normal rolling goes on.

As shown in fig. 5 and 6, the upper side of the object placing table 3 is provided with a supporting component 9 for supporting the object placing basket 4, two opposite sides of the opening of the object placing basket 4 are fixedly connected with connecting strips 41 supported by the supporting component 9, and the upper sides of the connecting strips 41 are provided with chamfers. The supporting component 9 comprises two supporting rollers 91 which are respectively positioned above the fetching holes 33 and face or depart from the two sides of the side plate 32, and the two ends of each supporting roller 91 are rotatably sleeved with a rotating seat 92 which is rotatably connected with the inner wall of the fetching hole 33. The inner wall of the object taking hole 33 is provided with a limiting member 93 for blocking the rotating seat 92 from rotating towards the lower side of the object placing table 3, when the rotating seat 92 is tightly attached to the limiting member 93, the two supporting rollers 91 are both positioned above the object taking hole 33, and the distance between the two supporting rollers 91 is equal to the width of the object placing basket 4. After the article basket 4 passes through the discharge hole, the supporting rollers 91 are rotated until the supporting rollers are propped against the lower side of the connecting strip 41, and the two supporting rollers 91 can form stable support for the article basket 4, so that the position of the article basket 4 is conveniently fixed.

As shown in fig. 6 and 7, a rotating shaft 94 is fixedly connected to one end of the rotating base 92 away from the supporting roller 91, and a rotating groove 35 into which the rotating shaft 94 is inserted is formed in the inner wall of the object taking hole 33. The limiting member 93 includes a horizontally disposed limiting strip 931, one end of the limiting strip 931 is attached to the rotating base 92, and a limiting spring 932 is fixedly connected between the other end of the limiting strip 931 and the rotating base 92. The limiting spring 932 has a pulling effect on the rotating base 92, so that the limiting spring is not easy to separate from the limiting piece 93. Spacing 931 middle part downside fixedly connected with adjusts the strip 933, adjusts the strip 933 and puts and be connected through adjusting bolt 934 between the thing platform 3, adjusts the strip 933 and is provided with the rectangular hole 9331 that supplies adjusting bolt 934 pole portion to pass, gets thing hole 33 inner wall and is provided with the thread groove 36 with adjusting bolt 934 threaded connection. After the adjusting bolt 934 is loosened, the limiting member 93 can move up and down, and then the distance between the two supporting rollers 91 and the limiting member 93 is adjusted when the two supporting rollers are tightly attached.

As shown in fig. 5, the winding assembly 7 includes a winding shaft 71 rotatably connected to the side plate 32 and used for winding two strings 6, and two limiting rings 72 for limiting the strings 6 are fixedly sleeved on the middle portion of the winding shaft 71. One end of the winding shaft 71 far away from the side plate 32 is fixedly connected with a rotating handle 73, and one end of the rotating handle 73 far away from the winding shaft 71 is fixedly connected with a handle 74. The handle 74 is held to rotate around the winding shaft 71, so that the thin rope 6 can be wound quickly.

As shown in fig. 8, a hinge hole 321 is formed in the upper side of the side plate 32, a limiting strip 931 is disposed at the hinge hole 321, a hinge shaft 76 rotatably connected to the limiting strip 931 is fixedly connected between two opposite inner walls of the hinge hole 321, and a plurality of slots 721 for the limiting strip 931 to be inserted into are disposed at intervals on the outer side of the limiting ring 72 facing one side of the side plate 32. When the limiting strip 931 rotates and is clamped into the clamping groove 721, the limiting ring 72 cannot rotate, so that the winding shaft 71 rotates accidentally to cause the trouble that the string 6 is disturbed, and the position of the storage basket 4 can be fixed relatively. The object placing table 3 is provided with a containing hole 34 communicated with the hinge hole 321 and used for allowing the limiting strip 931 to rotate in, the limiting strip 931 rotates in the rolling process until the limiting strip is tightly attached to the bottom wall of the containing hole 34, and the limiting strip 931 is not easy to accidentally rotate and is clamped into the clamping groove 721.

The working process is as follows:

when the fitment personnel need take required article, the companion places article earlier in hanging in the thing basket 4 of putting of low department, the fitment personnel hold handle 74 rotation again for the string 6 rolls up fast and puts thing basket 4 and rises, put thing basket 4 afterwards and block into from between four flaring boards 102 and get in the thing hole 33, connecting strip 41 is applyed with the extrusion force to backing roll 91, make two backing rolls 91 strut, two backing rolls 91 withdraw under the pulling force effect of limiting spring 932 and support in connecting strip 41 downside when connecting strip 41 moves to backing roll 91 upside, rotate limiting strip 931 finally and block into draw-in groove 721 can.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a house is ladder for ceiling fitment, includes double ladder (2), its characterized in that: the herringbone ladder (2) comprises two straight ladders (21) which are symmetrically arranged, the top of each straight ladder (21) is connected with a supporting seat (22), the lower sides of the two supporting seats (22) are connected through hinges (23), one side of each supporting seat (22) is provided with a fetching device (1), each fetching device (1) comprises a storage platform (3) and a storage basket (4), one end, facing the corresponding supporting seat (22), of each storage platform (3) is connected with a connecting plate (31), the connecting plates (31) are connected with the corresponding supporting seats (22) through connecting bolts (5), the connecting plates (31) are provided with waist-shaped holes (311) through which rod parts of the connecting bolts (5) penetrate, the middle parts of the storage platforms (3) are provided with storage holes (33) through which the storage baskets (4) penetrate, the opposite two sides of the storage baskets (4) are connected with thin ropes (6), and the storage platforms (3) are connected with one side of the connecting plates (31) through side plates, the side plate (32) is rotationally connected with a winding component (7) for winding the thin rope (6), two guide components (8) for guiding the thin ropes (6) are arranged on the upper side of the object placing table (3), the guide component (8) comprises a first guide rod (81), a second guide rod (82), a third guide rod (83), a fourth guide rod (84) and a fifth guide rod (85) according to the sequence of the thin rope (6), the first guide rod (81) and the fourth guide rod (84) are parallel to the object placing table (3) and both ends of the first guide rod and the fourth guide rod are rotatably sleeved with a connecting seat (86) fixedly connected with the object placing table (3), the first guide rod (81) and the fourth guide rod (84) are perpendicular to each other, the second guide rod (82) and the third guide rod (83) are rotatably connected with the object placing table (3) and are vertical to each other, the fifth guide rod (85) is rotatably connected with the side plate (32) and is vertical to the side plate.

2. A room ceiling finishing ladder as claimed in claim 1, wherein: the end parts of the second guide rod (82), the third guide rod (83) and the fifth guide rod (85) are fixedly connected with limit discs (87).

3. A room ceiling finishing ladder as claimed in claim 1, wherein: winding subassembly (7) include rotate with curb plate (32) and be connected and supply twined rolling axle (71) of string (6), the fixed cover in rolling axle (71) middle part has two spacing rings (72) that are used for spacing string (6), the one end fixedly connected with who keeps away from curb plate (32) of rolling axle (71) rotates handle (73), the one end that the rolling axle (71) was kept away from in rotation handle (73) is connected with handle (74).

4. A room ceiling finishing ladder as claimed in claim 3, wherein: curb plate (32) upside is provided with hinge hole (321), hinge hole (321) department is provided with fixed strip (75), articulated shaft (76) that fixedly connected with and fixed strip (75) rotate to be connected between two relative inner walls of hinge hole (321), orientation curb plate (32) one side spacing ring (72) outside interval is provided with draw-in groove (721) that a plurality of confession fixed strip (75) were gone into, it is provided with and communicates and supply accommodation hole (34) that fixed strip (75) shifted over to put thing platform (3).

5. A room ceiling finishing ladder as claimed in claim 1, wherein: put thing platform (3) upside and be provided with supporting component (9) that the thing basket (4) was put in the support, put thing basket (4) the equal fixedly connected with connecting strip (41) in the relative both sides of opening, supporting component (9) are located backup roll (91) of getting thing hole (33) top both sides respectively including two, backup roll (91) both ends are rotated and have been cup jointed and are rotated seat (92), the one end of keeping away from backup roll (91) in seat (92) is connected with axis of rotation (94), it is provided with rotation groove (35) that supply axis of rotation (94) card to go into to get thing hole (33) inner wall.

6. A room ceiling finishing ladder as claimed in claim 5, wherein: get thing hole (33) inner wall and be provided with and be used for blockking to rotate seat (92) toward putting thing platform (3) downside pivoted locating part (93), backing roll (91) are located and get thing hole (33) top when rotating seat (92) and locating part (93) and hugging closely.

7. A room ceiling finishing ladder as claimed in claim 6, wherein: locating part (93) include spacing strip (931), spacing strip (931) one end with rotate seat (92) and hug closely, the other end and rotate and be connected with between seat (92) spacing spring (932), spacing strip (931) middle part downside fixedly connected with adjusts strip (933), adjust strip (933) and put and be connected through adjusting bolt (934) between the thing platform (3), adjust strip (933) and be provided with rectangular hole (9331) that supply adjusting bolt (934) pole portion to pass, it is provided with thread groove (36) with adjusting bolt (934) threaded connection to get thing hole (33) inner wall.

8. A room ceiling finishing ladder as claimed in claim 7, wherein: put thing basket (4) and be connected with coupling hook (42), lantern ring (61) on coupling hook (42) are overlapped to string (6) tip fixedly connected with, it is provided with locating component (10) to get thing hole (33) downside, locating component (10) are located respectively and are got locating plate (101) of each inner wall of thing hole (33) including four, locating plate (101) downside fixedly connected with flaring board (102), flaring board (102) upside is connected with fixed plate (103) of L shape, fixed plate (103) with put and connect through fixing bolt (104) between the thing platform (3).

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