CN114232960A

CN114232960A - Lifting scaffold with protection function

Info

Publication number: CN114232960A
Application number: CN202111628458.8A
Authority: CN
Inventors: 陈建波
Original assignee: Jiangxi Guheng Technology Co ltd
Current assignee: Jiangxi Guheng Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-03-25

Abstract

The invention discloses a lifting scaffold with a protection function, which comprises a base, a shifting fixing mechanism, a lifting matching mechanism, a splicing mechanism, an anti-skidding mechanism and a protection frame, wherein the shifting fixing mechanism is fixedly arranged on two sides of the bottom of the base, the lifting matching mechanism is fixedly arranged on the top of the base, and a telescopic frame is fixedly arranged on the top of the lifting matching mechanism. According to the invention, through the arrangement of the supporting extension mechanism and the splicing mechanism, when the device moves to a proper position, the electric push rod is opened to drive the extension platform on the inner wall of the platform to extend outwards, and when the device extends to the proper position, the electric lifting sleeve rod is opened to extend the electric lifting sleeve rod to the ground all the time, so that the extension platform is supported and fixed, the extension platform is more stable in use, the stability of the device is effectively improved, the width of the device can be adjusted more conveniently according to the use requirement, and the use area of the device can be enlarged as much as possible in reuse.

Description

Lifting scaffold with protection function

Technical Field

The invention relates to the field of scaffold equipment, in particular to a lifting scaffold with a protection function.

Background

The scaffold is a working platform which is erected for ensuring that each construction process is smoothly carried out, and is divided into an outer scaffold and an inner scaffold according to the erected position, and the scaffold can be divided into a wood scaffold, a bamboo scaffold and a steel pipe scaffold according to different materials, and is divided into a vertical rod type scaffold, a bridge type scaffold, a door type scaffold, a suspension type scaffold, a hanging type scaffold, a picking type scaffold and a climbing type scaffold according to the structural form.

The traditional lifting scaffold can not extend and contract reasonably to the device more conveniently and generally when in use, cannot adjust the device conveniently according to different requirements of use, cannot ensure the protection function of the device in the use process, and has certain potential safety hazards when in use to influence the use effect of the device.

Therefore, the lifting scaffold with the protection function is provided to solve the problems.

Disclosure of Invention

The invention aims to provide a lifting scaffold with a protection function, and aims to solve the problems that the conventional lifting scaffold cannot reasonably extend and contract a device more conveniently and rapidly when in use, cannot conveniently adjust the device according to different requirements of use, cannot ensure the protection function of the device in the use process, has certain potential safety hazard when in use, and influences the use effect of the device in the background technology.

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

a lifting scaffold with a protection function comprises a base, a shifting fixing mechanism, a lifting matching mechanism, a splicing mechanism, an anti-skidding mechanism and a protection frame, wherein the shifting fixing mechanism is fixedly arranged on two sides of the bottom of the base;

the support extension mechanism comprises a platform, two mounting grooves which are respectively formed in two sides of the inner wall of the platform, a plurality of electric push rods which are respectively and fixedly mounted in the two mounting grooves, two extension tables which are respectively and fixedly mounted at telescopic ends of the plurality of electric push rods, four mounting blocks which are respectively and fixedly mounted on two sides of the bottom of the two extension tables and four electric lifting sleeve rods which are respectively and fixedly mounted at the bottoms of the four mounting blocks;

splicing mechanism fixed mounting is in extension platform one side, antiskid fixed mounting is in the platform top, protection frame fixed mounting is in platform outer wall both sides, protection frame one side is provided with upper and lower fixed establishment, protection frame both sides are provided with side protection mechanism.

In a further embodiment, the displacement fixing mechanism comprises four rollers respectively fixedly mounted on two sides of the bottom of the base, two support plates respectively fixedly mounted on two sides of the base, four servo motors respectively fixedly mounted on the tops of the two support plates, four telescopic rods respectively fixedly mounted on the output ends of the four servo motors, and four thread cones respectively fixedly mounted on the bottoms of the four telescopic rods.

In a further embodiment, the lifting matching mechanism comprises a bottom plate, a positioning pin shaft, a movable pin shaft, two chutes respectively formed in two sides of the inner wall of the bottom plate and two sliders respectively installed in the two chutes in a matching manner, the bottom plate is fixedly installed at the top of the base, the positioning pin shaft is arranged on one side of the inner wall of the bottom plate, and the movable pin shaft is connected between the two sliders.

In a further embodiment, the splicing mechanism includes connecting plate, draw-in groove, fixture block, two first hinges of difference fixed mounting in extension bench top both sides, two fixed plates of fixed mounting in two first hinge one sides respectively, two fixed blocks of fixed mounting in two fixed plates inside respectively, two expansion plates of cooperation installation in two fixed plates inboards respectively and two fixing bolt of fixed mounting in two expansion plate one sides respectively, every all be connected with an expanding spring between fixed block and the expansion plate, connecting plate fixed mounting is in extension bench one side, the draw-in groove is seted up in connecting plate one side, the fixture block cooperation is installed inboard at the draw-in groove.

In a further embodiment, the anti-skid mechanism comprises an anti-skid pad, a plurality of movable blocks fixedly arranged on two sides of the top of the platform respectively and a plurality of movable hooks arranged on the inner sides of the movable blocks respectively in a matching mode, and the anti-skid pad is fixedly arranged on the tops of the movable hooks.

In a further embodiment, the upper and lower fixing mechanism includes a movable door, a first connecting block, a rotating plate, a positioning block, and two second hinges respectively fixedly installed on the inner side of the protection frame, the movable door is fixedly installed on one side of the two second hinges, the first connecting block is fixedly installed on one side of the top of the movable door, the rotating block is fixedly installed on the top of the first connecting block, the rotating plate is fixedly installed on the top of the rotating block, and the positioning block is fixedly installed on the bottom of the rotating plate.

In a further embodiment, the side protection mechanism comprises two second connecting blocks respectively fixedly mounted on one side of the top of the protection frame, two second rotating blocks respectively fixedly mounted on the tops of the two second connecting blocks, two top plates respectively fixedly mounted on the tops of the two second rotating blocks, two first insertion holes respectively formed in one side of the two top plates, and two insertion rods respectively mounted on the inner sides of the two first insertion holes in a matched manner.

In a further embodiment, the side protection mechanism further comprises eight second jacks respectively arranged at two sides of the protection frame, four protection rods respectively installed at the inner sides of the four jacks in a matched manner, four fixing rings respectively fixedly installed at one ends of the two protection rods, and two anti-drop chains respectively fixedly connected between the four fixing rings.

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

one is as follows: in the invention, by arranging the supporting extension mechanism and the splicing mechanism, when the device moves to a proper position, the electric push rod is opened to drive the extension platform on the inner wall of the platform to extend outwards, and when the device extends to the proper position, the electric lifting sleeve rod is opened to extend the electric lifting sleeve rod to the ground all the time, the extension platform is supported and fixed, so that the extension platform is more stable when in use, the stability of the device is effectively improved, the width of the device can be more conveniently and quickly adjusted according to the use requirement, the use area of the device can be enlarged as much as possible when in reuse, the occupied space can be reduced as much as possible when the device is stopped for use, the device is easier to uniformly store, manage and use, and when the device needs to be spliced, the extension platforms of the two devices simultaneously extend outwards until a clamping block on one side of the extension platform is clamped and fixed with a clamping groove on one side of the other extension platform, the fixed plate is pulled downwards to enable the fixed plate to be parallel to the extension table, the expansion plate is pulled to enable the expansion plate to drive an internal expansion spring to extend until the expansion plate moves to a corresponding hole, the expansion plate is screwed and fixed by a fixing bolt, the expansion spring can better play a role in stabilizing and fixing, shaking is avoided, the device can be more conveniently adapted to different use conditions due to the arrangement of the splicing mechanism, meanwhile, the device is kept stable, and the safety is better;

the second step is as follows: in the invention, by arranging the upper and lower fixing mechanisms and the side protection mechanism, when a worker needs to get on or off the device, the movable door is opened to drive the movable door to drive the second hinge to rotate and open, then the movable door is closed, the rotating plate is pulled to drive the rotating block to rotate until the rotating plate is parallel to the protection frame, then the positioning block is opened to insert the positioning block into the hole at the top of the protection frame, the movable door is fixed and limited, the movable door is prevented from loosening when the worker uses the device, so that the worker drops off to cause potential safety hazards, the device is more stable, after the device is installed, the top plate is pulled to drive the second rotating block to rotate inwards until the top plate is vertically distributed with the protection frame, the inserting rod is inserted into the first inserting hole to fixedly install the top plate, when the worker needs to walk back and forth, the top plate is rotated to one side, and the moving range of the worker can be more conveniently and rapidly limited, better protection staff's safety, the most edge department of device again will have solid fixed ring and anticreep chain inside the fender rod inserts the second jack, carries out deeper protection to the both sides of device, avoids the staff to step on empty when removing, leads to dropping, the hoisting device security that can be effective.

Drawings

FIG. 1 is a schematic structural view of a three-dimensional structure according to the present invention;

FIG. 2 is a schematic view of the support extension mechanism of the present invention;

FIG. 3 is a schematic structural view of a splicing mechanism according to the present invention;

FIG. 4 is a schematic structural view of a side protection mechanism according to the present invention;

FIG. 5 is a schematic structural view of the lift engagement mechanism of the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 4 at B.

In the figure: 1. a base; 2. a displacement fixing mechanism; 21. a roller; 22. a support plate; 23. a servo motor; 24. a telescopic rod; 25. a thread taper; 3. a lifting matching mechanism; 31. a base plate; 32. a locating pin shaft; 33. a chute; 34. a slider; 35. moving the pin shaft; 4. a telescopic frame; 5. a hydraulic lever; 6. a support extension mechanism; 61. a station; 62. mounting grooves; 63. an electric push rod; 64. a lengthening stage; 65. mounting blocks; 66. an electric lifting loop bar; 7. a splicing mechanism; 71. a connecting plate; 72. a card slot; 73. a clamping block; 74. A first hinge; 75. a fixing plate; 76. a fixed block; 77. a tension spring; 78. a retractable plate; 79. fixing the bolt; 8. an anti-slip mechanism; 81. a movable block; 82. a movable hook; 83. a non-slip mat; 9. a protective frame; 10. an upper and lower fixing mechanism; 101. a second hinge; 102. a movable door; 103. a first connection block; 104. Rotating the block; 105. a rotating plate; 106. positioning blocks; 11. a side protection mechanism; 111. a second connecting block; 112. a second rotating block; 113. a top plate; 114. a first jack; 115. inserting a rod; 116. a second jack; 117. a guard bar; 118. a fixing ring; 119. the anticreep chain.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements 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", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 7, in an embodiment of the present invention, an elevating scaffold with a protection function includes: the base 1 is characterized by further comprising a shifting fixing mechanism 2, a lifting matching mechanism 3, a splicing mechanism 7, an anti-skidding mechanism 8 and a protective frame 9, wherein the shifting fixing mechanism 2 is fixedly arranged on two sides of the bottom of the base 1, the lifting matching mechanism 3 is fixedly arranged on the top of the base 1, a telescopic frame 4 is fixedly arranged on the top of the lifting matching mechanism 3, a hydraulic rod 5 is fixedly arranged on the inner side of the telescopic frame 4, a supporting and extending mechanism 6 is fixedly arranged on the top of the hydraulic rod 5, the supporting and extending mechanism 6 comprises a platform 61, two mounting grooves 62 respectively formed on two sides of the inner wall of the platform 61, a plurality of electric push rods 63 respectively fixedly arranged in the two mounting grooves 62, two extending platforms 64 respectively fixedly arranged at the telescopic ends of the plurality of electric push rods 63, four mounting blocks 65 respectively fixedly arranged on two sides of the bottom of the two extending platforms 64 and four electric lifting sleeve rods 66 respectively fixedly arranged at the bottoms of the four mounting blocks 65, the splicing mechanism 7 is fixedly arranged on one side of the extension table 64, the antiskid mechanism 8 is fixedly arranged on the top of the platform 61, the protective frame 9 is fixedly arranged on two sides of the outer wall of the platform 61, the upper fixing mechanism 10 and the lower fixing mechanism 10 are arranged on one side of the protective frame 9, the side protective mechanisms 11 are arranged on two sides of the protective frame 9, the supporting extension mechanism 6 and the splicing mechanism 7 are arranged, when the device moves to a proper position, the electric push rod 63 is opened, the electric push rod 63 drives the extension table 64 on the inner wall of the platform 61 to extend outwards, when the device extends to a proper position, the electric lifting sleeve rod 66 is opened, the electric lifting sleeve rod 66 extends to the ground all the time, the extension table 64 is supported and fixed, the extension table 64 is more stable when in use, the stability of the device is effectively improved, the width of the device can be adjusted according to use requirements more conveniently, so that the use area of the device can be enlarged as much as possible when the device is reused, meanwhile, when the device is not used, the occupied space can be reduced as much as possible, the device is easier to store, manage and use uniformly, the splicing mechanism 7 comprises a connecting plate 71, a clamping groove 72, a clamping block 73, two first hinges 74 which are respectively and fixedly arranged at two sides of the top of the extension table 64, two fixing plates 75 which are respectively and fixedly arranged at one sides of the two first hinges 74, two fixing blocks 76 which are respectively and fixedly arranged inside the two fixing plates 75, two expansion plates 78 which are respectively and cooperatively arranged at the inner sides of the two fixing plates 75 and two fixing bolts 79 which are respectively and fixedly arranged at one sides of the two expansion plates 78, an expansion spring 77 is connected between each fixing block 76 and the expansion plate 78, the connecting plate 71 is fixedly arranged at one side of the extension table 64, the clamping groove 72 is arranged at one side of the connecting plate 71, the clamping block 73 is cooperatively arranged at the inner side of the clamping groove 72, when the device needs to be spliced, extension platform 64 of two devices is toward extending outward simultaneously, fixture block 73 up to extension platform 64 one side is fixed with the draw-in groove 72 block of another extension platform 64 one side, stimulate fixed plate 75 downwards again, it is parallel with extension platform 64 to make fixed plate 75, stimulate expansion plate 78 to make expansion plate 78 drive inside expanding spring 77 and extend, remove to the hole that corresponds until expansion plate 78, reuse fixing bolt 79 screws up fixedly, the effect of stable fixed that plays that expanding spring 77's setting can be better, avoid producing and rock, splicing mechanism 7 sets up the different in service behavior of adaptation that makes the device can be more convenient, it is stable to make between device and the device simultaneously, the security is better.

Example 2

Referring to fig. 1 and 3, the difference from embodiment 1 is: a lifting scaffold with a protection function, comprising: the up-down fixing mechanism 10 comprises a movable door 102, a first connecting block 103, a rotating block 104, a rotating plate 105, a positioning block 106 and two second hinges 101 which are respectively and fixedly installed on the inner side of the protection frame 9, the movable door 102 is fixedly installed on one side of the two second hinges 101, the first connecting block 103 is fixedly installed on one side of the top of the movable door 102, the rotating block 104 is fixedly installed on the top of the first connecting block 103, the rotating plate 105 is fixedly installed on the top of the rotating block 104, the positioning block 106 is fixedly installed at the bottom of the rotating plate 105, when the device needs to get on or off a person, the movable door 102 is opened to enable the movable door 102 to drive the second hinge 101 to rotate and open, then the movable door 102 is closed, the rotating plate 105 is pulled to enable the rotating plate 105 to drive the rotating block 104 to rotate until the rotating plate 105 is parallel to the protection frame 9, then the positioning block 106 is opened to enable the positioning block 106 to be inserted into a hole in the top of the protection frame 9 to fix and limit the movable door 102, the side protection mechanism 11 comprises two second connecting blocks 111 respectively fixedly arranged on one side of the top of the protection frame 9, two second rotating blocks 112 respectively fixedly arranged on the tops of the two second connecting blocks 111, two top plates 113 respectively fixedly arranged on the tops of the two second rotating blocks 112, two first inserting holes 114 respectively formed on one side of the two top plates 113 and two inserting rods 115 respectively matched and arranged on the inner sides of the two first inserting holes 114, when the device is installed, the top plates 113 are pulled to drive the second rotating blocks 112 to rotate inwards until the top plates 113 and the protection frame 9 are vertically distributed, the inserting rods 115 are inserted into the first inserting holes 114 to fixedly install the top plates 113, when workers need to walk back and forth, just rotating roof 113 to one side, can be more convenient quick prescribe a limit to staff's home range, better protection staff's safety, the very edge of device again, will have solid fixed ring 118 and anticreep chain 119 the protection pole 117 insert second jack 116 inside, carry out deeper protection to the both sides of device, avoid the staff step to step on empty when removing, lead to dropping, can effectual hoisting device security.

The working principle of the invention is as follows: firstly, an external power supply is switched on, the base 1 is pushed to enable the base 1 to drive the roller 21 to roll to a required position, then the servo motor 23 is started to enable the servo motor 23 to drive the telescopic rod 24 to rotate, the threaded cone 25 is driven to rotate downwards towards the lower part of the ground until the threaded cone 25 is fixed on the ground, then the hydraulic rod 5 is started to enable the hydraulic rod 5 to drive the platform 61 to extend upwards, the telescopic frame 4 drives the positioning pin shaft 32 and the movable pin shaft 35 to extend in a matched mode until the height is proper, then the anti-skid pad 83 is fixedly installed on the top of the platform 61 through the movable hook 82 and the movable block 81, then the electric push rod 63 is started to enable the electric push rod 63 to drive the extension platform 64 on the inner wall of the platform 61 to extend outwards, when the electric lift sleeve rod 66 is started to extend to the proper position, the electric lift sleeve rod 66 extends to the ground all the way, and the extension platform 64 is supported and fixed, then, the extension tables 64 of the two devices extend outwards at the same time until a clamping block 73 on one side of one extension table 64 is clamped and fixed with a clamping groove 72 on one side of the other extension table 64, then the fixing plate 75 is pulled downwards to enable the fixing plate 75 to be parallel to the extension table 64, the expansion plate 78 is pulled to enable the expansion plate 78 to drive an internal expansion spring 77 to extend until the expansion plate 78 moves to a corresponding hole, then the expansion plate 78 is screwed and fixed by a fixing bolt 79, when the devices need to get on or off people, the movable door 102 is opened to enable the movable door 102 to drive the second hinge 101 to rotate and open, then the movable door 102 is closed, the rotating plate 105 is pulled to enable the rotating plate 105 to drive the rotating block 104 to rotate until the rotating plate 105 is parallel to the protection frame 9, then the positioning block 106 is opened to enable the positioning block 106 to be inserted into the hole on the top of the protection frame 9 to fix and limit the movable door 102, and finally after the devices are installed, pulling roof 113 makes roof 113 drive the rotatory piece 112 of second inwards rotatory, until roof 113 and protection frame 9 vertical distribution, insert first jack 114 inside with inserted bar 115, carry out fixed mounting to roof 113, when the staff need make a round trip to move, just with roof 113 rotation to one side, can be more convenient quick prescribe a limit to staff's home range, better protection staff's safety, install the most edge again, it inserts inside second jack 116 to have the guard bar 117 of solid fixed ring 118 and anticreep chain 119, carry out deeper protection to the both sides of device, wherein servo motor 23's model is: YE2-132S-4, the model of hydraulic stem 5 is: CDM2B25, the model of electric push rod 63 is: YS-NZ100-12A, the model number of the electric lifting loop bar 66 is as follows: YS-NZ100-12A, the working principle of the invention is completed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description of the embodiments is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A lifting scaffold with a protection function comprises a base (1) and is characterized by further comprising a shifting fixing mechanism (2), a lifting matching mechanism (3), a splicing mechanism (7), an anti-skidding mechanism (8) and a protection frame (9), wherein the shifting fixing mechanism (2) is fixedly arranged on two sides of the bottom of the base (1), the lifting matching mechanism (3) is fixedly arranged on the top of the base (1), a telescopic frame (4) is fixedly arranged on the top of the lifting matching mechanism (3), a hydraulic rod (5) is fixedly arranged on the inner side of the telescopic frame (4), and a supporting and extending mechanism (6) is fixedly arranged on the top of the hydraulic rod (5);

the support extension mechanism (6) comprises a platform (61), two mounting grooves (62) which are respectively formed in two sides of the inner wall of the platform (61), a plurality of electric push rods (63) which are respectively and fixedly mounted in the two mounting grooves (62), two extension tables (64) which are respectively and fixedly mounted at telescopic ends of the plurality of electric push rods (63), four mounting blocks (65) which are respectively and fixedly mounted on two sides of the bottom of the two extension tables (64) and four electric lifting sleeve rods (66) which are respectively and fixedly mounted at the bottoms of the four mounting blocks (65);

splicing mechanism (7) fixed mounting is in extension platform (64) one side, antiskid (8) fixed mounting is at platform (61) top, protection frame (9) fixed mounting is in platform (61) outer wall both sides, fixed establishment (10) about protection frame (9) one side is provided with, protection frame (9) both sides are provided with side protection mechanism (11).

2. The lifting scaffold with the protection function according to claim 1, wherein the displacement fixing mechanism (2) comprises four rollers (21) fixedly installed at two sides of the bottom of the base (1), two supporting plates (22) fixedly installed at two sides of the base (1), four servo motors (23) fixedly installed at the tops of the two supporting plates (22), four telescopic rods (24) fixedly installed at the output ends of the four servo motors (23), and four thread cones (25) fixedly installed at the bottoms of the four telescopic rods (24).

3. The lifting scaffold with the protection function according to claim 1, wherein the lifting matching mechanism (3) comprises a bottom plate (31), a positioning pin (32), a moving pin (35), two sliding grooves (33) respectively formed in two sides of the inner wall of the bottom plate (31), and two sliding blocks (34) respectively matched and installed on the inner sides of the two sliding grooves (33), the bottom plate (31) is fixedly installed on the top of the base (1), the positioning pin (32) is arranged on one side of the inner wall of the bottom plate (31), and the moving pin (35) is connected between the two sliding blocks (34).

4. The lifting scaffold with the protection function according to claim 1, wherein the splicing mechanism (7) comprises a connecting plate (71), a clamping groove (72), a clamping block (73), two first hinges (74) respectively fixedly arranged at two sides of the top of the extension table (64), two fixing plates (75) respectively fixedly arranged at one side of the two first hinges (74), two fixing blocks (76) respectively fixedly arranged inside the two fixing plates (75), two expansion plates (78) respectively arranged at the inner sides of the two fixing plates (75) in a matching way, and two fixing bolts (79) respectively fixedly arranged at one side of the two expansion plates (78), an expansion spring (77) is connected between each fixing block (76) and each expansion plate (78), the connecting plate (71) is fixedly arranged at one side of the extension table (64), the clamping groove (72) is formed in one side of the connecting plate (71), and the clamping block (73) is installed on the inner side of the clamping groove (72) in a matched mode.

5. The lifting scaffold with protection function as claimed in claim 1, wherein the anti-skid mechanism (8) comprises an anti-skid pad (83), a plurality of movable blocks (81) fixedly installed on both sides of the top of the platform (61) respectively, and a plurality of movable hooks (82) installed inside the plurality of movable blocks (81) respectively, and the anti-skid pad (83) is fixedly installed on the top of the plurality of movable hooks (82).

6. The lifting scaffold with the protection function according to claim 1, wherein the upper and lower fixing mechanism (10) comprises a movable door (102), a first connecting block (103), a rotating block (104), a rotating plate (105), a positioning block (106) and two second hinges (101) which are respectively fixedly installed on the inner sides of the protection frames (9), the movable door (102) is fixedly installed on one side of the two second hinges (101), the first connecting block (103) is fixedly installed on one side of the top of the movable door (102), the rotating block (104) is fixedly installed on the top of the first connecting block (103), the rotating plate (105) is fixedly installed on the top of the rotating block (104), and the positioning block (106) is fixedly installed on the bottom of the rotating plate (105).

7. The lifting scaffold with the protection function as claimed in claim 1, wherein the side protection mechanism (11) comprises two second connection blocks (111) fixedly installed at one side of the top of the protection frame (9), two second rotation blocks (112) fixedly installed at the tops of the two second connection blocks (111), two top plates (113) fixedly installed at the tops of the two second rotation blocks (112), two first insertion holes (114) respectively opened at one side of the two top plates (113), and two insertion rods (115) respectively installed inside the two first insertion holes (114) in a matching manner.

8. The lifting scaffold with the protection function according to claim 1, wherein the side protection mechanism (11) further comprises eight second insertion holes (116) respectively formed at both sides of the protection frame (9), four protection rods (117) respectively fitted inside the four insertion holes (116), four fixing rings (118) respectively fixedly installed at one ends of the two protection rods (117), and two anti-falling chains (119) respectively fixedly connected between the four fixing rings (118).