CN110778088A

CN110778088A - Lifting scaffold

Info

Publication number: CN110778088A
Application number: CN201911118587.5A
Authority: CN
Inventors: 卜建荣; 徐燕君
Original assignee: Zhejiang Industry Polytechnic College
Current assignee: HANGZHOU XINGWAIXING TECHNOLOGY CO.,LTD.
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-02-11
Anticipated expiration: 2039-11-15
Also published as: CN110778088B

Abstract

The invention discloses a lifting scaffold, which comprises a support frame, two groups of support frames, support plates and connecting blocks, wherein the support frames are arranged above the support frame, the support plates are arranged at the upper parts of the support frames, foot supporting units and walking units are respectively arranged at the outer sides and the inner sides of the lower parts of the support frames, a plurality of ear plates are respectively connected to the left side and the right side of each connecting block, reinforcing beams are respectively arranged at the inner sides of the support frames, one ends, far away from the connecting blocks, of the ear plates are fixedly connected with the reinforcing beams, and each support frame comprises two vertical beams. This over-and-under type scaffold has the heel brace unit, can open the heel brace unit when using, plays the effect of auxiliary stay, makes the scaffold frame more stable, has improved the security when using.

Description

Lifting scaffold

Technical Field

The invention relates to the technical field of auxiliary tools for medium buildings, in particular to a lifting scaffold.

Background

The scaffold is various supports which are erected for workers to operate and solve vertical and horizontal transportation on a construction site, is usually applied to places where external walls, interior decoration or high floor height cannot be directly constructed on a construction site, is mainly used for up-and-down operation of constructors or peripheral safety net enclosure, high-altitude installation members and the like, is also used as a template for some projects, and is widely used in the departments of advertising industry, municipal administration, traffic roads, bridges, mines and the like. At present, the most common scaffold is a fastener type steel pipe scaffold, and besides, the ladder type scaffold is also a common scaffold in the construction process of low-rise buildings.

When the scaffold is used, the bottom of the scaffold needs to be in contact with the flat ground so as to ensure the stability of the whole scaffold, but the phenomenon of uneven ground exists in part of construction areas, so that the use of the scaffold is limited.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a lifting scaffold.

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

a lifting scaffold comprises a support frame, support frames, support plates and connecting blocks, wherein the support frame is provided with two groups, the support frames are arranged above the support frame, the support plates are arranged on the upper portion of the support frame, foot supporting units and walking units are respectively arranged on the outer side and the inner side of the lower portion of the support frame, a plurality of reinforcing beams are respectively connected to the left side and the right side of each connecting block, ear plates are respectively arranged on the inner sides of the support frames, one ends, far away from the connecting blocks, of the reinforcing beams are fixedly connected with the ear plates, the support frame comprises two vertical beams, a plurality of cross beams are connected between the two vertical beams, four support rods are connected to the lower portion of the support frame, the lower portions of the four support rods are respectively inserted into the vertical beams, racks are arranged on the front sides of the support rods, a lifting motor frame, the middle part of the gear shaft is provided with a gear, the vertical beam is provided with an opening, the gear penetrates through the opening on the vertical beam to be meshed with the rack, the vertical beam is also provided with an anti-falling mechanism, the inside of the support frame is provided with a moving block in a sliding manner, the right side of the support frame is provided with a lead screw motor seat, the upper part of the lead screw motor seat is provided with a lead screw motor, the moving block is provided with a threaded hole along the length direction of the support frame, a lead screw is arranged in the threaded hole, one end of the lead screw is connected with an output shaft of the lead screw motor, the upper part of the moving block is connected with a support plate, the upper part of the support plate is provided with a circle of guardrails, the foot supporting unit comprises a mounting plate fixed on the vertical beam, the front side of the mounting plate is sequentially provided with a, the upper and lower parts of the rotating shaft are respectively fixed with a first reinforcing plate and a second reinforcing plate, a foot supporting plate is connected between the first reinforcing plate and the second reinforcing plate, the lower part of the foot supporting plate is provided with a shock absorption block, the foot supporting plate is provided with a clamping hole, the positions of the front side of the mounting plate, which are positioned at the left side and the right side of the rotating shaft, are respectively provided with a first clamping block and a second clamping block, the first clamping block and the second clamping block are respectively provided with a clamping groove, the height of the clamping groove on the first clamping block is higher than that of the clamping groove on the second clamping block, a spring is sleeved on the rotating shaft and is positioned between the second rotating seat and the first reinforcing plate, and when the foot supporting plate rotates by taking the rotating shaft as a shaft, the clamping hole can be clamped into the clamping groove of the first clamping block or the second clamping block for fixing.

As preferred, prevent weighing down the mechanism including fixing the cylinder on erecting the roof beam, the piston rod front end of cylinder is connected with the connecting plate, the connecting plate is connected with head rod and second connecting rod with the one side of cylinder homonymy, the head rod and the second connecting rod other end are connected with first fixed plate and second fixed plate respectively, one side that the head rod was kept away from to the head rod is connected with a plurality of fixed pins, the bracing piece rear side is equipped with a plurality of and dog, interval between a plurality of dogs is the same, the fixed pin passes behind one side inner wall of erecting the roof beam card go into adjacent two dog and front end insert in the inner wall of erecting the roof beam opposite side, one side that the second connecting rod was kept away from to the second fixed plate is connected with a plurality of round pin posts, the position of round pin post.

Preferably, the pin includes an insertion portion inserted into the second fixing plate and fixed thereto, a stopper ring coupled to a left side of the insertion portion, and a catching portion coupled to a left side of the stopper ring, and a diameter of a left end of the catching portion is smaller than a diameter of a right end thereof.

As preferred, the walking unit includes the slider, the slider front side is connected with the link, the link sub-unit connection has the tie-beam, the tie-beam lower part is rotated and is provided with two and removes the wheel seat, it is provided with the removal wheel to rotate in the wheel seat to remove, the embedded groove has been seted up on the perpendicular roof beam, embedded groove sub-unit connection has the spout, the slider passes embedded groove card and goes into to erect in the roof beam, the slider can remove along the spout, erect the position that the roof beam front side is located the spout left and right sides and seted up two regulation holes, two vertical settings of regulation hole and be parallel to each other, it has fixing bolt to twist on the regulation hole, be equipped with the fixed orifices on the slider, the fixing bolt front end passes behind the fixed orifices on the slider and with the inner.

Preferably, two guide grooves are formed in the supporting frame along the length direction, a plurality of rollers are arranged on the lower portion of the supporting plate, and the lower portions of the rollers are located in the guide grooves.

Compared with the prior art, the invention has the beneficial effects that: the scaffold unit is arranged and can be opened for use when the ground is uneven, and the scaffold can stride over the uneven area on the ground to be in contact with the flat area on the ground, so that the bottom of the scaffold is kept level everywhere, and the stability of the scaffold in use is ensured; the anti-falling mechanism is arranged, so that the supporting frame can be limited, the fixing of the supporting frame is ensured, and the supporting frame can be prevented from falling accidentally.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic view of the driving of the lift motor of the present invention;

FIG. 4 is a schematic structural view of the fall arrest mechanism of the present invention;

FIG. 5 is a side view of the present invention at the support stand;

FIG. 6 is an enlarged schematic view at B of FIG. 5;

FIG. 7 is a schematic structural view of a foot supporting unit according to the present invention;

FIG. 8 is a top view of the support frame of the present invention;

FIG. 9 is a top view of the present invention;

fig. 10 is a schematic structural view of the pin of the present invention.

Reference numerals: 1. a support frame; 2. a support frame; 3. a support plate; 4. a guardrail; 5. a roller; 6. a traveling unit; 7. a foot support unit; 8. connecting blocks; 9. an ear plate; 10. a reinforcing beam; 11. a guide groove; 12. a moving block; 13. a screw rod; 14. a screw motor base; 15. a screw motor; 16. erecting a beam; 17. a cross beam; 18. a support bar; 19. a rack; 20. a lifting motor frame; 21. a lifting motor; 22. a gear shaft; 23. a gear; 24. an anti-falling mechanism; 25. a cylinder; 26. a connecting plate; 27. a first connecting rod; 28. a first fixing plate; 29. a fixing pin; 30. a second connecting rod; 31. a second fixing plate; 32. a pin; 33. a stopper; 34. a clamping hole; 35. a groove is embedded; 36. a chute; 37. an adjustment hole; 38. a slider; 39. a connecting frame; 40. a connecting beam; 41. moving the wheel seat; 42. a moving wheel; 43. fixing the bolt; 44. mounting a plate; 45. a first rotating base; 46. a second rotating base; 47. a third rotating base; 48. a rotating shaft; 49. a first clamping block; 50. a second clamping block; 51. a clamping groove; 52. a first reinforcing plate; 53. a second reinforcing plate; 54. a foot supporting plate; 55. a damper block; 56. a spring; 57. an insertion portion; 58. a blocking ring; 59. a meshing part.

Detailed Description

An elevating scaffold according to the present invention will be further described with reference to fig. 1-10.

The utility model provides a lifting scaffold, including support frame 1, carriage 2, support frame 1 is provided with two, support frame 1 comprises two perpendicular roof beams 16 and a plurality of crossbeams 17 of connection between two perpendicular roof beams 16, carriage 2 is the rectangle frame structure that four roof beams welded into, the inboard of two roof beams around carriage 2 is seted up flutedly, it is provided with movable block 12 to slide in the recess, threaded hole is seted up along the recess direction to movable block 12, install lead screw 13 in the threaded hole, the one end of lead screw 13 links to each other with the output shaft of lead screw motor 15 is fixed, lead screw motor 15 is fixed through the lead screw motor cabinet 14 of connection on carriage 2. The upper part of the moving block 12 is fixed with a support plate 3, and the upper part of the support plate 3 is provided with a circle of guardrails 4. The screw motor 15 drives the screw 13 to rotate, so that the moving block 12 moves along the groove, and the supporting plate 3 is driven to move on the supporting frame 2 and is adjusted along with the construction position of a worker. Two guide ways 11 have been seted up along length direction on the

carriage

2, and 3 lower parts of backup pad are equipped with a plurality of

gyro wheels

5, and 5 lower parts of gyro wheel are located guide way 11, and guide way 11 plays guide roller 5's effect, makes backup pad 3 remove and more steady on the assigned direction.

The guardrail 4 can be provided with a door for the staff to get in and out, so that the staff can conveniently get in or leave the support plate 3.

The 2 sub-unit connection of carriage has four bracing pieces 18, the lower part of bracing piece 18 is inserted in erecting the roof beam 16, the bracing piece 18 front side is equipped with rack 19, erect the roof beam 16 outside and be equipped with elevator motor frame 20, elevator motor frame 20 upper portion is equipped with elevator motor 21, be connected with gear shaft 22 on elevator motor 21's the output shaft, gear shaft 22 middle part is equipped with gear 23, be equipped with the opening on erecting the roof beam 16, gear 23 passes opening and rack 19 meshing on erecting the roof beam 16, elevator motor 21's output shaft drive gear 23 rotates, gear 23 removes at drive meshing's rack 19, thereby drive bracing piece 18 and remove in erecting the roof beam 16, play the effect of adjusting the 2 heights of carriage.

The foot supporting unit 7 comprises a mounting plate 44 fixed on the vertical beam 16, a first rotating seat 45, a second rotating seat 46 and a third rotating seat 47 are sequentially arranged on the front side of the mounting plate 44 from top to bottom, a rotating shaft 48 is rotatably arranged on the first rotating seat 45, the second rotating seat 46 and the third rotating seat 47, a first reinforcing plate 52 and a second reinforcing plate 53 are respectively fixed on the upper portion and the lower portion of the rotating shaft 48, a foot supporting plate 54 is connected between the first reinforcing plate 52 and the second reinforcing plate 53, a shock absorption block 55 is arranged on the lower portion of the foot supporting plate 54, a clamping hole 34 is arranged on the foot supporting plate 54, a first clamping block 49 and a second clamping block 50 are respectively arranged on the left side and the right side of the rotating shaft 48 on the front side of the mounting plate 44, clamping grooves 51 are respectively arranged on the first clamping block 49 and the second clamping block 50, the clamping grooves 51 on the first clamping block 49 are higher than the clamping grooves 51 on the second clamping block 50, a spring 56 is sleeved on the rotating, the spring 56 is located between the second rotating seat 46 and the first reinforcing plate 52. When the foot supporting unit 7 is used, the foot supporting plate 54 is rotated to one side of the second clamping block 50, the second clamping block 50 penetrates through the clamping hole 34 to clamp the clamping hole 34 into the clamping groove 51 on the second clamping block 50, and the bottom of the damping block 55 is in contact with the ground to play a supporting role; when the foot supporting unit 7 is not used, the foot supporting plate 54 is rotated to one side of the first clamping block 49, and since the clamping groove 51 on the first clamping block 49 is formed with a higher height, when the clamping hole 34 is clamped in the clamping groove 51 on the first clamping block 49, the spring 56 pushes the first reinforcing plate 52 upwards, and at this time, the bottom of the shock absorption block 55 is at a certain distance from the ground.

Prevent weighing down mechanism 24 including fixing the cylinder 25 on erecting roof beam 16, the piston rod front end of cylinder 25 is connected with connecting plate 26, the one side of connecting plate 26 and cylinder 25 homonymy is connected with head rod 27 and second connecting rod 30, the head rod 27 and the second connecting rod 30 other end are connected with first fixed plate 28 and second fixed plate 31 respectively, one side that head rod 27 was kept away from to first fixed plate 28 is connected with a plurality of fixed pins 29, the bracing piece 18 rear side is equipped with a plurality ofly and dog 33, the interval between a plurality of dogs 33 is the same, one side that second connecting rod 30 was kept away from to second fixed plate 31 is connected with a plurality of round pins 32. After the supporting frame 2 reaches a proper height, the air cylinder 25 controls the piston rod to contract to drive the connecting plate 26 to move leftwards, the fixing pin 29 penetrates through the inner wall of one side of the vertical beam 16 and then is clamped into the two adjacent stop blocks 33, the left end of the fixing pin is inserted into the inner wall of the other side of the vertical beam 16, a limiting mechanism is formed by matching the fixing pin 29 with the stop blocks 33, the position of the pin 32 is matched with the tooth pitch of the gear 23, the left side of the pin 32 is clamped between the two adjacent teeth of the gear 23, and another limiting mechanism is formed by the teeth of the pin 32 and the gear 23. Two stop gear coactions ensure spacing stability and fastness.

The length of the pin 32 is smaller than that of the fixing pin 29, when the limit is cancelled, the pin 32 is firstly separated from the limit, the force of the driving gear of the lifting motor 21 supports the support rod 18, and the fixing pin 29 is separated from the limit again, so that the sudden drop of the support rod 18 caused by insufficient driving force preparation of the lifting motor 21 due to the fact that the limit is simultaneously removed by the pin and the fixing pin can be avoided.

The pin 32 includes an insertion portion 57 inserted into the second fixing plate 31 and fixed thereto, a stopper ring 58 connected to the left side of the insertion portion 57, and a biting portion 59 connected to the left side of the stopper ring 58, and the diameter of the left end of the biting portion 59 is smaller than that of the right end.

The walking unit 6 comprises a sliding block 38, a connecting frame 39 is connected to the front side of the sliding block 38, a connecting beam 40 is connected to the lower portion of the connecting frame 39, two movable wheel seats 41 are rotatably arranged on the lower portion of the connecting beam 40, movable wheels 42 are rotatably arranged in the movable wheel seats 41, embedded grooves 35 are formed in the vertical beam 16, sliding grooves 36 are connected to the lower portions of the embedded grooves 35, the sliding block 38 is inserted into the embedded grooves 35 and then moves downwards, the connecting frame 39 is clamped into the sliding grooves 36 and moves along the length direction of the sliding grooves 36, two adjusting holes 37 are formed in the positions, located on the left side and the right side of the sliding grooves 36, of the front side of the vertical beam 16, the two adjusting holes 37 are vertically arranged and parallel to each other, fixing bolts 43 are screwed into the adjusting holes 37, fixing holes are formed in the sliding block 38, the front ends of the fixing bolts 43 are abutted to the inner walls of the vertical, to select the use or non-use of the walking unit 6.

The left side and the right side of the connecting block 8 are both connected with a plurality of reinforcing beams 10, the inner sides of the vertical beams 16 are both provided with ear plates 9, and one ends, far away from the connecting block 8, of the reinforcing beams 10 are fixedly connected with the ear plates 9.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a lifting scaffold, includes support frame, carriage, backup pad, connecting block, its characterized in that: the support frame is provided with two groups, the support frame is arranged above the support frame, the support plate is arranged on the upper part of the support frame, the outer side and the inner side of the lower part of the support frame are respectively provided with a foot support unit and a walking unit, the left side and the right side of the connecting block are both connected with a plurality of reinforcing beams, the inner side of the support frame is provided with an ear plate, one end of each reinforcing beam, far away from the connecting block, is fixedly connected with the ear plate, the support frame comprises two vertical beams, a plurality of cross beams are connected between the two vertical beams, the lower part of the support frame is connected with four support rods, the lower parts of the four support rods are respectively inserted into the vertical beams, the front sides of the support rods are provided with racks, the outer sides of the vertical beams are provided with a lifting motor frame, the upper, the gear penetrates through an opening in the vertical beam to be meshed with the rack, the vertical beam is further provided with an anti-falling mechanism, a moving block is arranged in the supporting frame in a sliding mode, a lead screw motor seat is arranged on the right side of the supporting frame, a lead screw motor is arranged on the upper portion of the lead screw motor seat, a threaded hole is formed in the moving block along the length direction of the supporting frame, a lead screw is installed in the threaded hole, one end of the lead screw is connected with an output shaft of the lead screw motor, a supporting plate is connected to the upper portion of the moving block, a circle of guardrails are arranged on the upper portion of the supporting plate, the foot supporting unit comprises a mounting plate fixed on the vertical beam, a first rotating seat, a second rotating seat and a third rotating seat are sequentially arranged on the front side of the mounting plate from top to bottom, rotating shafts are rotatably arranged on the first rotating seat, the, the foot supporting plate is connected between the first reinforcing plate and the second reinforcing plate, a shock absorption block is arranged on the lower portion of the foot supporting plate, a clamping hole is formed in the foot supporting plate, a first clamping block and a second clamping block are respectively arranged at the positions, located on the left side and the right side of the rotating shaft, of the front side of the mounting plate, clamping grooves are formed in the first clamping block and the second clamping block, the height of each clamping groove in the first clamping block is higher than that of each clamping groove in the second clamping block, a spring is sleeved on the rotating shaft and located between the second rotating seat and the first reinforcing plate, and when the foot supporting plate rotates by taking the rotating shaft as the shaft, the clamping hole can be clamped into the clamping grooves of the first clamping block or the second clamping block to be fixed.

2. The elevating scaffold as claimed in claim 1, wherein: prevent weighing down the mechanism including fixing the cylinder on erecting the roof beam, the piston rod front end of cylinder is connected with the connecting plate, the connecting plate is connected with head rod and second connecting rod with the one side of cylinder homonymy, the head rod and the second connecting rod other end are connected with first fixed plate and second fixed plate respectively, one side that the head rod was kept away from to first fixed plate is connected with a plurality of fixed pins, the bracing piece rear side is equipped with a plurality of dogs, and is a plurality of interval between the dog is the same, the fixed pin passes behind one side inner wall of erecting the roof beam card go into between two adjacent dogs and the front end inserts in erecting the opposite side inner wall of roof beam, one side that the second connecting rod was kept away from to the second fixed plate is connected with a plurality of round pin posts, the position and the tooth pitch of round pin post suit, the round.

3. A lifting scaffold according to claim 2, wherein: the pin column comprises an inserting part, a stop ring and a meshing part, wherein the inserting part is inserted into the second fixing plate and fixed, the stop ring is connected to the left side of the inserting part, the meshing part is connected to the left side of the stop ring, and the diameter of the left end of the meshing part is smaller than that of the right end of the meshing part.

4. The elevating scaffold as claimed in claim 1, wherein: the walking unit includes the slider, the slider front side is connected with the link, the link sub-unit connection has the tie-beam, the tie-beam lower part is rotated and is provided with two removal wheel seats, it is provided with the removal wheel to rotate in the removal wheel seat, erect and to have seted up the embedded groove on the roof beam, the embedded groove sub-unit connection has the spout, the slider passes embedded groove card and goes into to erect in the roof beam, the link can remove along the spout, erect the position that the roof beam front side is located the spout left and right sides and seted up two regulation holes, two the vertical setting of regulation hole is just parallel to each other, it has fixing bolt to twist on the regulation hole, be equipped with the fixed orifices on the slider, the fixing bolt front end passes behind the fixed orifices on the slider and the inner wall butt.

5. The elevating scaffold as claimed in claim 1, wherein: two guide grooves are formed in the supporting frame along the length direction, a plurality of idler wheels are arranged on the lower portion of the supporting plate, and the lower portions of the idler wheels are located in the guide grooves.