CN211817799U

CN211817799U - Scaffold safe in utilization

Info

Publication number: CN211817799U
Application number: CN202020187240.8U
Authority: CN
Inventors: 殷蔚曙; 殷少愚
Original assignee: Shanghai Senda Machinery Manufacturing Co ltd
Current assignee: Shanghai Senda Machinery Manufacturing Co ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-10-30
Anticipated expiration: 2030-02-19

Abstract

The utility model discloses a scaffold, aiming at providing a scaffold safe in use, which is characterized in that the scaffold comprises a base plate and a movable plate which are horizontally arranged, the movable plate is arranged above the base plate, one side of the base plate facing the ground is fixedly connected with a plurality of supporting legs, one side of the base plate opposite to the ground is connected with a driving motor, the base plate is provided with a plurality of rotating holes, two rotating holes are in a group, each group of rotating holes are symmetrically arranged about the center of the base plate, a lifting rod is rotatably arranged in the rotating holes, the top end of the lifting rod passes through the movable plate, a screw thread is turned on a rod body on one side, back to the ground, of the base plate, the lifting rod is in threaded connection with the movable plate, a driven chain wheel is fixedly sleeved on the rod body, located on one side, facing the ground, of the base plate, of the lifting rod, an output shaft of the driving motor penetrates through the base plate and is fixedly sleeved with a driving chain wheel set, and a transmission chain is meshed between the driving chain wheel set and the driven chain wheel. The utility model discloses can reduce the staff at the climbing in-process, the scaffold frame produces the possibility of empting.

Description

Scaffold safe in utilization

Technical Field

The utility model relates to a technical field of scaffold frame, in particular to scaffold frame safe in utilization.

Background

The scaffold is a temporary building tool which is erected for workers to operate and solve vertical and horizontal transportation on a construction site. The high-rise building block is mainly used in places where external walls, interior decoration or high floor height cannot be directly constructed, and is mainly used for up-and-down dry work of constructors, maintenance of peripheral safety nets, high-altitude installation of components and the like.

Chinese patent with publication number CN203420458U discloses a height-adjustable's portable scaffold frame, contains the frame, the rigid coupling has horizontal bracing piece in the transverse direction of frame, the side of frame is equipped with a plurality of horizontal poles for the climbing according to certain interval, the frame below is equipped with the universal wheel for the removal, the below of frame is equipped with the location stay tube, the L-shaped groove has all been opened on the location stay tube, the location stay tube has cup jointed the location stand, the L-shaped groove matched with transverse positioning pole of location stand fixedly connected with and location stay tube, location stand bottom all is equipped with positioning screw, positioning screw is equipped with the locating plate with the one end that ground contacted, horizontal bracing piece upper berth is equipped with corresponding personnel's fly leaf.

When the scaffold is used, the scaffold is moved by the movable universal wheels arranged below the rack, and when construction is needed, the scaffold is moved to a construction position. Move the bottom in the L shape groove of positioning support pipe through transverse positioning pole, rotatory positioning screw moves down simultaneously, raises the height of scaffold frame, makes the universal wheel leave the bottom surface, fixes a position this scaffold frame and uses in construction department, waits to be under construction to accomplish the back and resets transverse positioning pole and positioning screw, with portable scaffold frame move back the instrument room can. During operation, constructors climb to corresponding heights through the cross rods for climbing and then enter the movable plate of the constructors for construction.

The operation workman climbs the eminence to the scaffold through the climbing horizontal pole, however, because the horizontal pole sets up in one side of frame, consequently, when the workman upwards climbs the in-process of scaffold, along with the increase of height, the scaffold receives and receives the pulling force that receives a sideway and lead to appearing empting the phenomenon because of workman's weight, consequently, the security of scaffold is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a scaffold frame safe in utilization can reduce the staff at the climbing in-process, and the scaffold frame produces the possibility of empting.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a scaffold safe in use comprises a base plate and a movable plate which are horizontally arranged, wherein the movable plate is positioned above the base plate, one side of the base plate, which faces the ground, is fixedly connected with a plurality of supporting legs, one side of the base plate, which faces away from the ground, is connected with a driving motor, the base plate is provided with a plurality of rotating holes, two rotating holes form a group, each group of rotating holes is symmetrically arranged around the center of the base plate, the rotating holes are internally and rotatably provided with lifting rods in a penetrating way, the top ends of the lifting rods penetrate through the movable plate, the screw thread is turned on the rod body of the base plate on the side opposite to the ground, the lifting rod is connected with the movable plate by screw thread, the lifting rod is located the fixed cover in the pole body of base plate towards ground one side and is equipped with driven sprocket, driving motor's output shaft passes the base plate and fixed cover is equipped with drive sprocket group, the meshing has drive chain between drive sprocket group and the driven sprocket.

Through adopting above-mentioned technical scheme, at first with the height-descending to lower department of fly leaf, then, the workman climbs the fly leaf. Because the height of the movable plate is lower at the moment, the climbing is safer. Then, start driving motor, driving motor's output shaft drives the rotation of drive sprocket group, and drive sprocket group drives first driven sprocket, the rotation of second driven sprocket through drive chain, and first driven sprocket, second driven sprocket drive the lifter and rotate, and the lifter rotates and makes the fly leaf rise gradually, takes the workman to the eminence. The utility model discloses a workman scrambles the fly leaf in lower department, then rises the mode to the eminence with the workman through driving motor, has reduced the possibility that the scaffold frame takes place to empty.

Furthermore, a plurality of polish rods are fixedly connected to the substrate, the polish rods are perpendicular to the substrate, and the top ends of the polish rods penetrate through the movable plate and are in sliding connection with the movable plate.

Through adopting above-mentioned technical scheme, the polished rod plays the effect of direction, has reduced the fly leaf and has risen the in-process, and workman's focus skew leads to the possibility that scaffold sways, has improved workman's security.

Furthermore, the polish rod and the lifting rod are uniformly distributed in the circumferential direction of the center of the substrate.

Through adopting above-mentioned technical scheme, evenly distributed makes the pressure that the fly leaf received disperse more evenly on polished rod and base plate, has reduced the lifter atress inhomogeneous and lead to the screw thread to take place the possibility of damaging.

Furthermore, the fixed cover is equipped with drive bearing on the lifter, drive bearing interference fit is downthehole in the pivoted.

Through adopting above-mentioned technical scheme, the setting up of rolling bearing makes the rotation of lifter more smooth and easy.

Furthermore, the lifting rod body between the transmission bearing and the driven sprocket is rotatably sleeved with a limiting ring, and the limiting ring is fixedly connected to the base plate.

Through adopting above-mentioned technical scheme, the spacing ring has limiting displacement to transmission bearing, has reduced the transmission shaft and has born the possibility that workman's action of gravity breaks away from on the base plate.

Furthermore, one side of the movable plate, which is back to the ground, is fixedly connected with a climbing handrail.

Through adopting above-mentioned technical scheme, because the activity board has certain height apart from ground when the workman scrambles, consequently, the workman may trample the shakiness when climbing the activity board and fall down, the setting of climbing handrail had both made things convenient for workman's climbing, for workman's climbing provides the atress thing, security when having improved the workman and scrambleing simultaneously.

Furthermore, the supporting legs are fixedly connected with limit nails which are vertically arranged, and the bottom ends of the limit nails are lower than the bottom ends of the supporting legs.

Through adopting above-mentioned technical scheme, can produce certain vibration when driving motor drives the lifter and rotate for the supporting legs takes place to remove subaerial, thereby rocks the range grow when leading to the fly leaf to go up and down. The spacing nail is contradicted subaerial, can reduce the scaffold and take place to remove, leads to the possibility of range of rocking grow, is favorable to improving the security performance when scaffold uses.

Further, be equipped with between fly leaf and the base plate and consolidate the dish, sliding sleeve is equipped with the anchor strut on polished rod, the lifter, anchor strut fixed connection is in consolidating the dish, consolidate one side fixedly connected with dead lever of dish towards the fly leaf, dead lever and fly leaf fixed connection.

Through adopting above-mentioned technical scheme, the reinforcing bar has the reinforcing effect to lifter and polished rod, has reduced the possibility that the increase of high bar leads to the range of rocking grow among the process that rises for it is more stable when the fly leaf rises.

To sum up, the utility model discloses following beneficial effect has: the workman falls the fly leaf to lower department, then climbs to the fly leaf on, drives the lifter through driving motor and rotates, realizes falling workman's lift, has the advantage that reduces the scaffold and topple over the possibility.

Drawings

Fig. 1 is a schematic structural diagram for embodying the present invention;

FIG. 2 is a schematic diagram showing the connection relationship between the base plate, the supporting legs, the driving gear set and the driving chain;

fig. 3 is a schematic diagram for showing a connection relationship among the driving motor, the first driving gear, and the second driving gear.

In the figure, 1, a substrate; 2. a movable plate; 3. supporting legs; 4. a drive motor; 5. a drive sprocket set; 6. rotating the hole; 7. a lifting rod; 8. A driven sprocket; 81. a first driven sprocket; 82. a second driven sprocket; 9. a drive chain; 10. a polish rod; 11. a drive bearing; 12. a limiting ring; 13. climbing the handrail; 14. a limit pin; 15. reinforcing the disc; 16. a reinforcing rod; 17. fixing the rod; 18. a first drive sprocket; 19. a second drive sprocket.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a scaffold frame safe in utilization, including base plate 1 and the fly leaf 2 that the level set up, base plate 1 and fly leaf 2's transversal rectangle setting of personally submitting. The movable plate 2 is located above the substrate 1. Four supporting legs 3 are welded on one side, facing the ground, of the substrate 1, and the four supporting legs 3 are sequentially connected to form a rectangle.

Referring to fig. 1 and 2, vertically arranged limit nails 14 are respectively welded and fixed on the four supporting legs 3, and the bottom ends of the limit nails 14 are lower than the bottom ends of the supporting legs 3. When the driving motor 4 drives the lifting rod 7 to rotate, a certain vibration is generated, so that the supporting legs 3 move on the ground, and the shaking amplitude is increased when the movable plate 2 is lifted. The stop pin 14 is abutted to the ground, so that the possibility of moving the scaffold can be reduced, and the safety of workers can be improved.

Referring to fig. 1 and 3, a driving motor 4 is fixedly connected to one side of the base plate 1, which faces away from the ground, through a bolt, the driving motor 4 is a forward and reverse rotating motor, an output shaft of the driving motor 4 penetrates through the base plate 1 and is fixedly sleeved with a driving chain wheel set 5, the driving chain wheel set 5 comprises a first driving chain wheel 18 and a second driving chain wheel 19, and the first driving chain wheel 18 is located above the second driving chain wheel 19.

Referring to fig. 1 and 2, the base plate 1 is opened with two rotation holes 6, and the two rotation holes 6 are symmetrically disposed about the center of the base plate 1. Two lifting rods 7 are rotatably arranged in the rotating holes 6 in a penetrating way, and the top ends of the lifting rods 7 penetrate through the movable plate 2. The screw thread is lathed on the rod body of the base plate 1 on the side opposite to the ground, and the lifting rod 7 is in screw thread connection with the movable plate 2.

Referring to fig. 2, a first driven sprocket 81 and a second driven sprocket 82 are respectively fixedly sleeved on the shaft body of the two lifting rods 7 on the side of the base plate 1 facing the ground, and the first driven sprocket 81 is higher than the second driven sprocket 82. The transmission chains 9 are engaged between the first driven sprocket 81 and the first drive sprocket 18, and between the second driven sprocket 82 and the second drive sprocket 19, respectively.

Referring to fig. 1 and 2, the driving motor 4 is started, and the output shaft of the driving motor 4 drives the first driving sprocket 18 and the second driving sprocket 19 to rotate. The first driving sprocket 18 drives the first driven sprocket 81 to rotate through the transmission chain 9, the second driving sprocket 19 drives the second driven sprocket 82 to rotate through the transmission chain 9, the first driven sprocket 81 and the second driven sprocket 82 drive the lifting rod 7 to rotate, and the lifting rod 7 rotates to drive the movable plate 2 to move up and down.

Referring to fig. 1, during construction, a worker firstly lowers the movable plate 2 to a lower position and then climbs the movable plate 2, and at the moment, the worker climbs the movable plate 2 more safely. At start-up driving motor 4, driving motor 4 drives lifter 7 and rotates, and lifter 7 rotates and drives 2 rises of fly leaf and take the workman to the eminence, and this climbing mode has reduced the staff and has scrambled the in-process, and the scaffold frame produces the possibility of empting.

Referring to fig. 1 and 2, the lifting rod 7 is fixedly sleeved with a transmission bearing 11, and the transmission bearing 11 is in interference fit in the rotating hole 6. The arrangement of the rotating bearing enables the lifting rod 7 to rotate more smoothly.

Referring to fig. 1 and 2, the shaft of the lifting rod 7 between the driving bearing 11 and the first driven sprocket 81 and between the driving bearing 11 and the second driven sprocket 82 are respectively rotatably sleeved with a limiting ring 12, and the limiting ring 12 is welded on the substrate 1. The stop collar 12 has a stop function on the drive bearing 11, reducing the possibility that the drive bearing 11 will be disengaged from the base plate 1 by the weight of the worker.

Referring to fig. 1, two polished rods 10 are welded on a substrate 1, the polished rods 10 are perpendicular to the substrate 1, and the top ends of the polished rods 10 penetrate through a movable plate 2 and are slidably connected with the movable plate 2. The polished rod 10 has a guiding function, so that the possibility that the scaffold shakes due to the gravity center offset of workers in the process of lifting the movable plate 2 is reduced, and the safety of the scaffold is improved.

Referring to fig. 1, the polish rod 10 and the lifting rod 7 are uniformly distributed along the central circumference of the substrate 1, and the pressure applied to the movable plate 2 is more uniformly distributed on the polish rod 10 and the substrate 1, so that the possibility of thread damage caused by uneven stress of the lifting rod 7 is reduced.

Referring to fig. 1, a climbing handrail 13 is welded to one side of the movable plate 2 facing away from the ground. Because the workman when climbing, fly leaf 2 has certain height apart from ground, consequently, the workman may trample the shakiness when climbing fly leaf 2 and fall down, and climbing handrail 13's setting has both made things convenient for workman's climbing, provides the atress thing for workman's climbing, has improved the security when workman climbs simultaneously.

Referring to fig. 1, a reinforcing plate 15 is horizontally disposed between the movable plate 2 and the substrate 1, a reinforcing rod 16 is slidably sleeved on the polish rod 10 and the lifting rod 7, and the reinforcing rod 16 is horizontally disposed. The reinforcing rod 16 is welded and fixed with the reinforcing disc 15. A fixed rod 17 is welded on one side of the reinforcing plate 15 facing the movable plate 2, and the fixed rod 17 is fixed with the movable plate 2 through welding.

Referring to fig. 1, the reinforcing rod 16 has a reinforcing effect on the lifting rod 7 and the polished rod 10, and reduces the possibility that the shaking amplitude is increased due to the increase of the height during the lifting process, so that the movable plate 2 is more stable during the lifting process.

The specific implementation process comprises the following steps: during construction, the scaffold is firstly carried to a construction site, and then an operator climbs the movable plate 2. The driving motor 4 is started, the output shaft of the driving motor 4 is positively transmitted to drive the driving chain wheel set 5 to rotate, the driving chain wheel set 5 drives the first driven chain wheel 81 and the second driven chain wheel 82 to rotate, the first driven chain wheel 81 and the second driven chain wheel 82 rotate to drive the lifting rod 7 to rotate, the lifting rod 7 rotates to drive the movable plate 2 to ascend, and the movable plate 2 ascends to bring an operation worker to a high place. The output shaft of the driving motor 4 rotates reversely, and the movable plate 2 gradually descends.

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

Claims

1. A scaffold safe in utilization which characterized in that: the lifting device comprises a base plate (1) and a movable plate (2) which are horizontally arranged, wherein the movable plate (2) is positioned above the base plate (1), one side of the base plate (1) facing the ground is fixedly connected with a plurality of supporting legs (3), one side of the base plate (1) facing away from the ground is connected with a driving motor (4), a plurality of rotating holes (6) are formed in the base plate (1), two rotating holes (6) are formed in one group, each group of rotating holes (6) are symmetrically arranged relative to the center of the base plate (1), a lifting rod (7) is rotatably arranged in each rotating hole (6), the movable plate (2) is penetrated through the top end of the lifting rod (7), the rod body of the lifting rod (7) positioned on one side of the base plate (1) facing away from the ground is provided with a thread, the lifting rod (7) is in threaded connection with the movable plate (2), and a driven sprocket (8) is fixedly sleeved on the rod body, the output shaft of driving motor (4) passes base plate (1) and fixed cover is equipped with drive sprocket group (5), the meshing has drive chain (9) between drive sprocket group (5) and driven sprocket (8).

2. A scaffold safe in use according to claim 1, wherein: the base plate (1) is fixedly connected with a plurality of polish rods (10), the polish rods (10) are perpendicular to the base plate (1), and the top ends of the polish rods penetrate through the movable plate (2) and are in sliding connection with the movable plate (2).

3. A scaffold safe in use according to claim 2, wherein: the polish rod (10) and the lifting rod (7) are uniformly distributed in the circumferential direction of the center of the substrate (1).

4. A scaffold safe in use according to claim 1, wherein: the fixed cover is equipped with drive bearing (11) on lifter (7), drive bearing (11) interference fit is in rotating hole (6).

5. A scaffold safe in use according to claim 4, wherein: the lifting rod (7) between the transmission bearing (11) and the driven chain wheel (8) is rotatably sleeved with a limiting ring (12), and the limiting ring (12) is fixedly connected to the base plate (1).

6. A scaffold safe in use according to claim 1, wherein: one side of the movable plate (2) back to the ground is fixedly connected with a climbing handrail (13).

7. A scaffold safe in use according to claim 1, wherein: the supporting legs (3) are fixedly connected with limit nails (14) which are vertically arranged, and the bottom ends of the limit nails (14) are lower than the bottom ends of the supporting legs (3).

8. A scaffold safe in use according to claim 2, wherein: be equipped with between fly leaf (2) and base plate (1) and consolidate dish (15), sliding sleeve is equipped with anchor strut (16) on polished rod (10), lifter (7), anchor strut (16) fixed connection is in consolidating dish (15), consolidate dish (15) towards one side fixedly connected with dead lever (17) of fly leaf (2), dead lever (17) and fly leaf (2) fixed connection.