CN210795674U

CN210795674U - Lifting platform for shaft construction

Info

Publication number: CN210795674U
Application number: CN201921785920.3U
Authority: CN
Inventors: 胡建军; 白月云; 李文胜; 司铁利
Original assignee: Beijing Zhongke Zhongdian Power Engineering Management Co ltd
Current assignee: Beijing Zhongke Zhongdian Power Engineering Management Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-19
Anticipated expiration: 2029-10-23

Abstract

The utility model relates to a lift platform is used in shaft construction, including truss, cage and hoist engine, the hoist engine sets up in the truss upper end, the hoist engine is located the shaft directly over, the lower extreme of hoist engine passes through wire rope and is connected with the cage, the cage includes the base and sets up in base rail all around, the base has been seted up installation cavity and lower installation cavity, it slides and is provided with two upper support boards to go up the installation cavity, it is provided with two lower support boards to slide in the lower installation cavity, the direction that upper support board and lower support board slided sets up perpendicularly, be provided with in the upper installation cavity of base and be used for making two upper support boards be close to each other or the last drive assembly who keeps away from, be provided with the lower drive assembly who is used for making two lower support boards be close to each other or keep away from in the lower. The lifting device has the advantages of convenience in lifting, strong stability, difficulty in shaking and convenience in construction.

Description

Lifting platform for shaft construction

Technical Field

The utility model belongs to the technical field of the technique of shaft construction and specifically relates to a lift platform is used in shaft construction.

Background

After the reservoir is used for a long time, the vertical shaft can be caused to have leakage, the leakage points of the well wall of the working vertical shaft are more, most of the leakage points are positioned at the concrete joint positions of sectional pouring, the joint surfaces of new and old concrete are not properly treated during the sectional pouring, the concrete is not compacted by vibration, the concrete at the periphery of part of construction joints has the quality defects of honeycombs, pitted surfaces and the like, and the leakage points are light and have water leakage, so that the water leakage is formed seriously.

Because the shaft is narrow in space and belongs to an ultrahigh shaft, a better construction platform cannot be arranged when the anti-seepage treatment construction is carried out on the shaft, the conventional construction platform is usually used for building a construction frame at the bottom of the shaft as a base surface, but the height of the conventional construction platform is too high due to too narrow length and width in the shaft, so that the construction frame is difficult to build, and if the anti-seepage points are multiple in different heights, the construction frame needs to be disassembled to adjust the height, so that time and labor are wasted, and the operation is inconvenient. If adopt current cage as construction platform, the edge of cage must have great interval with the shaft inner wall and just can be convenient for the cage to carry out the oscilaltion, can make constructor far away from the shaft inner wall when the construction like this, the deviation appears easily during drilling, influences the construction effect, and the cage appears rocking easily, influences constructor's construction and balances hard, and prevention of seepage construction effect is relatively poor, can cause the secondary to restore.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shaft is lift platform for construction, it has the lift convenience, and the steadiness is strong, is difficult for appearing rocking, the effect of the construction of being convenient for.

The utility model discloses a can realize through following technical scheme:

the utility model provides a lift platform is used in shaft construction, includes truss, cage and hoist engine, the hoist engine sets up in the truss upper end, the hoist engine is located the shaft directly over, the lower extreme of hoist engine passes through wire rope and is connected with the cage, the cage includes the base and sets up in base rail all around, installation cavity and lower installation cavity have been seted up to the base, it is provided with two upper supporting plates to slide in the upper installation cavity, it is provided with two lower support plates to slide in the lower installation cavity, the direction that upper supporting plate and lower support plate slided sets up perpendicularly, be provided with in the upper installation cavity of base and be used for making two upper supporting plates be close to each other or the last drive assembly who keeps away from, be provided with the lower drive assembly who is used for making two lower support plates be close to each other or keep away from.

Through adopting the above-mentioned technical scheme, cooperation through hoist engine and wire rope goes up and down to the cage in the shaft, drive assembly in the drive, make two upper support plate follow the last installation intracavity roll-off of base and butt in the inside wall of shaft, drive assembly down drives, make two bottom suspension fagging follow the lower installation intracavity roll-off of base and butt in the inside wall of shaft, the direction of going up backup pad and bottom suspension fagging roll-off sets up perpendicularly, through two upper support plate and two bottom suspension fagging respectively the butt in the lateral wall of the different sides of shaft, can make the stability of cage strong, constructor can not appear rocking when the construction, constructor can stand on upper support plate and bottom suspension fagging simultaneously, the convenience is under construction to the lateral wall of shaft.

The utility model discloses further set up to: the upper driving component comprises an upper sliding plate arranged on an upper supporting plate, a first tooth groove arranged on the upper sliding plate and a first gear arranged on the first tooth groove, the upper sliding plate corresponds to the upper supporting plate, the two upper sliding plates are parallel and are both vertically arranged with the upper supporting plate, the first tooth groove is positioned at one side opposite to the two upper sliding plates, the first gear is positioned between the first tooth grooves of the two upper sliding plates, the first gear is meshed with the first tooth groove, the lower driving component comprises a lower sliding plate arranged on a lower supporting plate, a second tooth groove arranged on the lower sliding plate and a second gear arranged on the second tooth groove, the lower sliding plate corresponds to the lower supporting plate, the two lower sliding plates are parallel and are both vertically arranged with the lower supporting plate, the second tooth groove is positioned at one side opposite to the two lower sliding plates, the second gear is positioned between the second tooth grooves of the two lower sliding plates, the second gear is meshed with the second gear groove, and the base is provided with a rotating piece which is used for enabling the upper driving assembly and the lower driving assembly to move simultaneously.

Through adopting above-mentioned technical scheme, first gear is located between the first tooth's socket of two upper sliding plates, in the time of first gear revolve, first gear and the meshing of first tooth's socket, first gear takes two upper sliding plates to be close to each other or keep away from this, the second gear is located between the second tooth's socket of two lower sliding plates, in the time of second gear revolve, second gear and the meshing of second tooth's socket, the second gear takes two lower sliding plates to be close to each other or keep away from this, drive assembly and lower drive assembly simultaneous movement can be controlled in the same time through controlling the rotation piece, the manpower has been saved.

The utility model discloses further set up to: the rotating part is a rotating shaft, the rotating shaft is vertically arranged, the lower end of the rotating shaft penetrates through the first gear and the second gear in sequence and then is connected with the bottom wall of the lower mounting cavity in a rotating mode, and the upper end of the rotating shaft extends out of the upper surface of the base.

Through adopting above-mentioned technical scheme, conveniently rotate the axis of rotation, can drive first gear and second gear and rotate with the axle center through rotating the axis of rotation.

The utility model discloses further set up to: two go up the holding tank all seted up to one side that the backup pad is relative, when going up the backup pad and being located the installation intracavity, go up the slide and keep away from the one end of being connected with last backup pad and slide into another last holding tank of going up the backup pad, two holding tank down has all been seted up to one side that the bottom suspension fagging is relative, when the bottom suspension fagging is located the installation intracavity down, the slide keeps away from the one end of being connected with the bottom suspension fagging and slides into the lower holding tank of another bottom suspension fagging down.

Through adopting the technical scheme, the area outside the installation cavity is related to the removal length of the sliding plate on going up the backup pad roll-off, go up the sliding plate can slide in the holding tank, from this the displacement distance of sliding plate can prolong, thereby the area outside the installation cavity on the backup pad roll-off is driven to the sliding plate on the increase, the area outside the installation cavity is related to the removal length of sliding plate down under the backup pad roll-off, the sliding plate can slide in the holding tank down, from this the displacement distance of sliding plate down can be prolonged, thereby can increase the area outside the installation cavity under the sliding plate drives the backup pad roll-off down, make constructor have more holding area.

The utility model discloses further set up to: the lateral wall of going up the installation cavity is provided with first guided way, first guide way has been seted up to the side of going up the backup pad, the first guide way and the first guided way of going up the backup pad slide and be connected, first guided way and first guided way looks adaptation, the lateral wall of installation cavity is provided with the second guided way down, the second guide way has been seted up to the side of bottom suspension fagging, the second guide way and the second guided way of bottom suspension fagging slide and be connected, second guided way and second guided way looks adaptation.

Through adopting above-mentioned technical scheme, through the cooperation of first guided way and first guide way, can make the slip of going up the backup pad more stable, through the cooperation of second guided way and second guide way, can make the slip of bottom suspension fagging more stable.

The utility model discloses further set up to: go up to be provided with first spliced pole between backup pad and the rail, be provided with the second spliced pole between bottom suspension fagging and the base, first spliced pole is including setting up in the first sleeve pipe of first loop bar is located to the first loop bar of base and cover, the one end of first loop bar is rotated with the top of base and is connected, first loop bar is located to first sleeve pipe's pot head and along the reciprocal slide of the axis of first loop bar, the other end of first sleeve pipe rotates with last backup pad to be connected, the second spliced pole is including setting up in the second sleeve pipe of second loop bar and cover locating the second sleeve pipe of second loop bar of base, the one end of second loop bar is rotated with the top of base and is connected, the second sleeve bar is located to the second sleeve pipe pot head and along the reciprocal slide of the axis of second loop bar, the second sheathed tube other end rotates with the bottom suspension fagging and is connected.

Through adopting above-mentioned technical scheme, when going up backup pad installation intracavity roll-off, the axis that first sleeve pipe is connected along first loop bar with last backup pad slides, first sleeve pipe and first loop bar rotate in gliding, therefore, when going up the backup pad and sliding to the lateral wall of butt shaft, the cooperation through first sleeve pipe and first loop bar carries out the pulling force effect to last backup pad, make the stability of going up the backup pad stronger, when the roll-off was installed the intracavity roll-off under the backup pad follow, the second sleeve pipe of being connected with the bottom suspension fagging slides along the axis of second loop bar, second sleeve pipe and second loop bar rotate in gliding, therefore, when the bottom suspension fagging slided to the lateral wall of butt shaft, carry out the pulling force effect to the bottom suspension fagging through the cooperation of second sleeve pipe and second loop bar, make the stability of bottom suspension fagging stronger.

The utility model discloses further set up to: the first connecting column and the second connecting column are both arranged into two groups.

Through adopting above-mentioned technical scheme, further strengthen the stability of backup pad and bottom suspension fagging.

The utility model discloses further set up to: and a hand wheel is arranged at the upper end of the rotating shaft.

Through adopting above-mentioned technical scheme, the setting up of hand wheel is convenient to rotate the axis of rotation.

To sum up, the utility model discloses a beneficial technological effect does:

1. the hoisting cage is lifted in the shaft through the matching of the winch and the steel wire rope, the upper driving assembly is driven, the two upper supporting plates slide out of the upper mounting cavity of the base and abut against the inner side wall of the shaft, the lower driving assembly is driven, the two lower supporting plates slide out of the lower mounting cavity of the base and abut against the inner side wall of the shaft, the directions of the slide-out of the upper supporting plates and the lower supporting plates are vertically arranged, the two upper supporting plates and the two lower supporting plates abut against the side walls of different sides of the shaft respectively, the stability of the hoisting cage can be high, constructors cannot shake during construction, and meanwhile constructors can stand on the upper supporting plates and the lower supporting plates, so that the construction of the side wall of the shaft is facilitated;

2. the area of the upper supporting plate, which slides out of the upper mounting cavity, is related to the moving length of the upper sliding plate, the upper sliding plate can slide into the upper accommodating groove, so that the moving distance of the upper sliding plate can be prolonged, the area of the upper supporting plate, which is driven by the upper sliding plate to slide out of the upper mounting cavity, is increased, the area of the lower supporting plate, which slides out of the lower mounting cavity, is related to the moving length of the lower sliding plate, the lower sliding plate can slide into the lower accommodating groove, the moving distance of the lower sliding plate can be prolonged, the area of the lower supporting plate, which is driven by the lower sliding plate, which slides out of the lower mounting cavity, can be increased, and constructors can;

3. the setting of hand wheel is convenient rotates the axis of rotation.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a base in an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a first schematic structural diagram of the matching relationship between the upper driving assembly and the lower driving assembly in the embodiment of the present invention;

fig. 5 is a schematic structural diagram ii of the matching relationship between the upper driving assembly and the lower driving assembly in the embodiment of the present invention.

In the figure, 1, a truss; 2. a winch; 21. a wire rope; 3. a suspension cage; 31. a fence; 32. a base; 321. an upper mounting cavity; 3211. a first guide rail; 322. a lower mounting cavity; 4. an upper support plate; 41. an upper accommodating groove; 42. a first guide groove; 5. a lower support plate; 51. a lower accommodating groove; 52. a second guide groove; 61. an upper sliding plate; 62. a first tooth slot; 63. a first gear; 71. a lower sliding plate; 72. a second tooth slot; 73. a second gear; 8. a rotating shaft; 81. a hand wheel; 9. a first connecting column; 91. a first sleeve; 92. a first loop bar; 10. a second connecting column; 101. a second sleeve; 102. a second loop bar.

Detailed Description

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

Example (b): the utility model provides a lift platform is used in shaft construction, as shown in figure 1, including truss 1, cage 3 and hoist engine 2, hoist engine 2 is fixed mounting in truss 1 upper end, adopts welded fastening usually, and truss 1 is the I-steel that evenly distributed has channel-section steel to add the muscle rib, and the both ends of I-steel are fixed respectively on the wall body or on the support body, make truss 1 fixed firm, and hoist engine 2 is electronic hoist engine, and hoist engine 2 is located the shaft directly over, and the lower extreme of hoist engine 2 passes through wire rope 21 and is connected with cage 3.

Referring to fig. 1 and 2, the cage 3 includes a rectangular base 32 and a rail 31, the rail 31 is disposed around the base 32, the base 32 has an upper installation cavity 321 and a lower installation cavity 322, the upper installation cavity 321 is located above the lower installation cavity 322, the upper installation cavity 321 communicates with two opposite sides of the base 32, and the lower installation cavity 322 communicates with two opposite sides of the base 32.

Go up to slide in installation cavity 321 and be provided with two and go up backup pad 4, two and go up backup pad 4 parallel arrangement, slide in installation cavity 322 down and be provided with two bottom suspension fagging 5, two bottom suspension fagging 5 parallel arrangement, go up the direction perpendicular setting that backup pad 4 and bottom suspension fagging 5 slided. An upper driving component for enabling the two upper supporting plates 4 to approach or separate from each other is arranged in the upper mounting cavity 321 of the base 32, and a lower driving component for enabling the two lower supporting plates 5 to approach or separate from each other is arranged in the lower mounting cavity 322 of the base 32.

Combine figure 1, figure 2, figure 4, go up drive assembly and include two upper sliding plate 61, set up in sliding plate's first tooth's socket 62 and first gear 63, two upper sliding plate 61 are parallel and all set up perpendicularly with last backup pad 4, two upper sliding plate 61 one end of keeping away from each other respectively with two upper backup pad 4 welding, upper sliding plate 61 and upper backup pad 4 are whole to be the setting of L type. The first tooth grooves 62 are respectively arranged on one side, opposite to the two upper sliding plates 61, of the two upper sliding plates 61, the first tooth grooves 62 are arranged along the sliding direction of the upper sliding plates 61, the first gear 63 is located between the first tooth grooves 62 of the two upper sliding plates 61, the first gear 63 is meshed with the first tooth grooves 62, and when the first gear 63 rotates, the first tooth grooves 62 of the two upper sliding plates 61 are mutually far away or close to each other under the meshing effect of the first gear 63.

Two opposite sides of upper supporting plate 4 have been seted up holding tank 41 respectively, go up holding tank 41 and last sliding plate 61 looks adaptation, when going up supporting plate 4 and being located last installation cavity 321, go up sliding plate 61 and slide in another upper supporting plate 4's last holding tank 41.

Two inside walls of the upper mounting cavity 321 are respectively provided with a first guide rail 3211 (refer to fig. 3), the first guide rail 3211 is arranged along the sliding direction of the upper sliding plate 61, the two side edges of the upper supporting plate 4 are respectively provided with a first guide groove 42, the first guide rail 3211 is located in the first guide groove 42 of the upper supporting plate 4 and is connected with the first guide groove 42 in a sliding manner, and the first guide rail 3211 is matched with the first guide groove 42.

The lower driving assembly comprises two lower sliding plates 71 arranged in parallel, a second tooth groove 72 formed in the lower sliding plates 71 and a second gear 73, one ends, far away from each other, of the two lower sliding plates 71 are respectively welded with the two lower supporting plates 5, the lower sliding plates 71 are perpendicular to the lower supporting plates 5, and the lower sliding plates 71 and the lower supporting plates 5 are integrally arranged in an L shape. The second tooth grooves 72 are respectively arranged on the opposite sides of the two lower sliding plates 71, the second tooth grooves 72 are arranged along the sliding direction of the lower sliding plates 71, the second gear 73 is positioned between the second tooth grooves 72 of the two lower sliding plates 71, the second gear 73 is meshed with the second tooth grooves 72, and when the second gear 73 rotates, the second tooth grooves 72 of the two lower sliding plates 71 are far away from or close to each other under the meshing effect of the second gear 73.

The opposite sides of the two lower supporting plates 5 are respectively provided with a lower accommodating groove 51 (refer to fig. 5), the lower accommodating grooves 51 are matched with the lower sliding plates 71, and when the lower supporting plates 5 are positioned in the lower mounting cavity 322, the lower sliding plates 71 slide into the lower accommodating grooves 51 of the other lower supporting plate 5.

The two inner side walls of the lower mounting cavity 322 are respectively provided with a second guide rail (not shown), the second guide rails are arranged along the sliding direction of the lower sliding plate 71, the two side edges of the lower support plate 5 are respectively provided with a second guide groove 52, the second guide rails are located in the second guide grooves 52 of the lower support plate 5 and connected with the second guide grooves 52 in a sliding manner, and the second guide rails are matched with the second guide grooves 52.

Be provided with on the base 32 and be used for making the rotation piece of going up drive assembly and lower drive assembly simultaneous movement, it is axis of rotation 8 to rotate the piece, the vertical setting of axis of rotation 8, the lower extreme of axis of rotation 8 passes first gear 63, second gear 73 back in order and the diapire of installation cavity 322 rotates to be connected down, the upper surface of base 32 is extended to the upper end of axis of rotation 8, axis of rotation 8 rotates with the axle center with first gear 63, second gear 73, the upper end fixedly connected with hand wheel 81 of axis of rotation 8.

A first connecting column 9 is arranged between the upper supporting plate 4 and the base 32, and a second connecting column 10 is arranged between the lower supporting plate 5 and the base 32.

The first connecting column 9 comprises a first sleeve rod 92 and a first sleeve 91, one end of the first sleeve rod 92 is rotatably connected with the outer surface of the upper end of the base 32, the other end of the first sleeve 91 is sleeved on the first sleeve rod 92 and slides along the axis of the first sleeve rod 92 in a reciprocating manner, and the other end of the first sleeve 91 is rotatably connected with the upper surface of the upper support plate 4.

The second connecting column 10 includes a second sleeve 102 and a second sleeve 101, one end of the second sleeve 102 is rotatably connected to the outer surface of the upper end of the base 32, one end of the second sleeve 101 is sleeved on the second sleeve 102 and slides along the axis of the second sleeve 102 in a reciprocating manner, and the other end of the second sleeve 101 is rotatably connected to the upper surface of the lower support plate 5.

The first connecting columns 9 and the second connecting columns 10 are arranged into two groups, the two groups of first connecting columns 9 are respectively located on two sides of the upper supporting plate 4, and the two groups of second connecting columns 10 are respectively located on two sides of the lower supporting plate 5.

The implementation principle of the embodiment is as follows: when construction needs to be carried out in the shaft, the lifting platform is placed into the shaft through the winch 2 and stops when the lifting platform reaches a position needing to be repaired, at the moment, the hand wheel 81 is rotated manually, the hand wheel 81 drives the rotating shaft 8 to rotate in the circumferential direction, the rotating shaft 8 drives the first gear 63 and the second gear 73 to rotate synchronously, the first tooth groove 62 of the upper sliding plate 61 is meshed with the first gear 63, the two upper supporting plates 4 can be separated from each other and slide out of the upper mounting cavity 321 to the tail ends of the upper supporting plates 4 to be abutted against the side wall of the shaft when the first gear 63 rotates, the first sleeve 91 of the first connecting column 9 slides on the first sleeve 92, the first sleeve 91 slides on the first sleeve 92 axially when the upper sliding plate 61 slides out, the first connecting column 9 plays a role in pulling force on the upper supporting plates 4, the second tooth groove 72 of the lower sliding plate 71 is meshed with the second gear 73, the second gear 73 can make two bottom suspension fagging 5 keep away from each other and from the terminal looks butt with the lateral wall of shaft of bottom suspension fagging 5 of gliding out in the lower installation cavity 322 when pivoted, the second sleeve pipe 101 of second spliced pole 10 slides on second loop bar 102, bottom suspension fagging 5 is in the roll-off, axial slip is carried out on second loop bar 102 to second sleeve pipe 101, second spliced pole 10 plays and carries out the pulling force effect to bottom suspension fagging 5, through two last backup pad 4, two bottom suspension fagging 5 respectively butt in the inside wall of shaft, can make cage 3 more stable, avoid appearing rocking, constructor can step on and be close to the shaft inner wall on last backup pad 4 or bottom suspension fagging 5, construction convenience.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a lift platform is used in shaft construction, includes truss (1), cage (3) and hoist engine (2), hoist engine (2) set up in truss (1) upper end, hoist engine (2) are located the shaft directly over, the lower extreme of hoist engine (2) passes through wire rope (21) and is connected its characterized in that with cage (3): cage (3) include base (32) and set up in base (32) rail (31) all around, installation cavity (321) and lower installation cavity (322) have been seted up in base (32), it is provided with two last backup pad (4) to slide in installation cavity (321) to go up, it is provided with two bottom suspension fagging (5) to slide in lower installation cavity (322), it sets up perpendicularly with the direction that bottom suspension fagging (5) slided to go up backup pad (4), be provided with in last installation cavity (321) of base (32) and be used for making two last backup pad (4) be close to each other or the last drive assembly who keeps away from, be provided with in bottom suspension fagging (322) of base (32) and be used for making two bottom suspension fagging (5) be close to each other or the lower drive assembly who keeps.

2. The elevating platform for shaft construction according to claim 1, wherein: the upper driving assembly comprises an upper sliding plate (61) arranged on an upper supporting plate (4), a first tooth groove (62) arranged on the upper sliding plate (61) and a first gear (63) arranged on the first tooth groove (62), the upper sliding plate (61) corresponds to the upper supporting plate (4), the upper sliding plate (61) is parallel and is perpendicular to the upper supporting plate (4), the first tooth groove (62) is positioned on one side opposite to the two upper sliding plates (61), the first gear (63) is positioned between the first tooth grooves (62) of the two upper sliding plates (61), the first gear (63) is meshed with the first tooth groove (62), the lower driving assembly comprises a lower sliding plate (71) arranged on a lower supporting plate (5), a second tooth groove (72) arranged on the lower sliding plate (71) and a second gear (73) arranged on the second tooth groove (72), lower sliding plate (71) is corresponding with lower supporting plate (5), two sliding plate (71) is parallel down and all sets up with lower supporting plate (5) is perpendicular, second tooth's socket (72) are located two relative one sides of lower sliding plate (71), and second gear (73) are located between second tooth's socket (72) of two lower sliding plate (71), and second gear (73) and second tooth's socket (72) mesh mutually, base (32) are provided with and are used for making the rotation piece of going up drive assembly and lower drive assembly simultaneous movement.

3. The elevating platform for shaft construction according to claim 2, wherein: the rotation piece is axis of rotation (8), the vertical setting of axis of rotation (8), the lower extreme of axis of rotation (8) passes first gear (63), second gear (73) back in order and rotates with the diapire of lower installation cavity (322) to be connected, and the upper surface of base (32) is extended to the upper end of axis of rotation (8).

4. The elevating platform for shaft construction according to claim 2, wherein: two holding tank (41) have all been seted up to the relative one side of last backup pad (4), when going up backup pad (4) and being located installation cavity (321), go up slide plate (61) and keep away from the one end of being connected with last backup pad (4) and slide into another last holding tank (41) of going up backup pad (4), two holding tank (51) down have all been seted up to the relative one side of lower backup pad (5), when lower backup pad (5) are located installation cavity (322) down, slide plate (71) are kept away from the one end of being connected with lower backup pad (5) and are slided into lower holding tank (51) of another lower backup pad (5) down.

5. The elevating platform for shaft construction as claimed in claim 4, wherein: the lateral wall of going up installation cavity (321) is provided with first guided way (3211), first guide way (42) have been seted up to the side of going up backup pad (4), first guide way (42) and first guided way (3211) of going up backup pad (4) slide and be connected, first guided way (3211) and first guide way (42) looks adaptation, the lateral wall of lower installation cavity (322) is provided with the second guided way, second guide way (52) have been seted up to the side of lower support plate (5), second guide way (52) and the second guided way of lower support plate (5) slide and be connected, second guided way and second guide way (52) looks adaptation.

6. The elevating platform for shaft construction according to claim 2, wherein: the connecting structure is characterized in that a first connecting column (9) is arranged between the upper supporting plate (4) and the base (32), a second connecting column (10) is arranged between the lower supporting plate (5) and the base (32), the first connecting column (9) comprises a first loop bar (92) arranged on the base (32) and a first sleeve (91) sleeved on the first loop bar (92), one end of the first loop bar (92) is rotatably connected with the top end of the base (32), one end of the first sleeve (91) is sleeved on the first loop bar (92) and slides in a reciprocating manner along the axis of the first loop bar (92), the other end of the first sleeve (91) is rotatably connected with the upper supporting plate (4), the second connecting column (10) comprises a second loop bar (102) arranged on the base (32) and a second sleeve (101) sleeved on the second loop bar (102), one end of the second loop bar (102) is rotatably connected with the top end of the base (32), one end of the second sleeve (101) is sleeved on the second loop bar (102) and slides in a reciprocating manner along the axis of the second loop bar (102), and the other end of the second sleeve (101) is rotatably connected with the lower support plate (5).

7. The elevating platform for shaft construction according to claim 6, wherein: the first connecting column (9) and the second connecting column (10) are arranged into two groups.

8. The elevating platform for shaft construction according to claim 3, wherein: and a hand wheel (81) is arranged at the upper end of the rotating shaft (8).