CN210976526U

CN210976526U - Scaffold for housing construction

Info

Publication number: CN210976526U
Application number: CN201921771659.1U
Authority: CN
Inventors: 吴李林
Original assignee: Huizhou Xinye Construction Engineering Co ltd
Current assignee: Huizhou Xinye Construction Engineering Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-10
Anticipated expiration: 2029-10-21

Abstract

The utility model relates to a scaffold frame for housing construction relates to building appliances's technical field, it includes the automobile body and sets up in the support body of automobile body top, the automobile body includes the wheel, supply the wheel seat of wheel installation and the mount pad that supplies the support body installation, along vertical direction sliding connection so that the mount pad contradicts or break away from ground between mount pad and the wheel seat, the support body is including setting up in the fork telescopic joint of cutting of mount pad and setting up in the platform of cutting fork telescopic joint upper end, the lower terminal surface slip of platform is provided with first slider, first slider is connected with the fork telescopic joint is articulated, be provided with the elevating system who is used for ordering about the mount pad lift and/or cuts fork telescopic joint lift on the mount pad. When the scaffold moves, the lifting mechanism controls the scaffold base to ascend so that the wheels are abutted against the ground, and therefore the scaffold can stably move; after the removal, elevating system orders about the frame seat earlier and descends so that the lower terminal surface of frame seat is contradicted to the removal of restriction wheel, so that the utility model has the advantages of stability is good.

Description

Scaffold for housing construction

Technical Field

The utility model belongs to the technical field of building appliances's technique and specifically relates to a scaffold frame for housing construction is related to.

Background

The building engineering refers to various building constructions and their auxiliary facilities, and the matching line, pipeline, equipment installation engineering and indoor and outdoor decoration engineering. The building mainly comprises a foundation and foundation subsection, a main structure subsection, a building decoration subsection, a building roof subsection, a building water supply and drainage and heating subsection, a building electrical subsection, a ventilation subsection and the like.

The scaffold is a working platform which is erected for ensuring each construction process to be carried out smoothly, and is widely applied to the construction site of the house building. The existing scaffolds mostly adopt a support frame made of wood or steel pipes so that workers can reach higher positions for construction.

And current room is built and is used indoor scaffold frame, in order to improve stability and practical convenience, adopt the fixed shaping of welded mode mostly. However, most of the scaffolds adopt steel tube structures, the weight is light, and the position of the center of gravity is high, so that the stability of the scaffolds is poor. Especially after adding casters for transportation, the stability of such stands during use is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a scaffold frame for housing construction has the advantage that stability is good.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a scaffold for building construction comprises a scaffold body and a scaffold body arranged above the scaffold body,

the vehicle body comprises wheels, wheel seats for mounting the wheels and frame seats for mounting the frame body, and the frame seats and the wheel seats are connected in a sliding mode along the vertical direction so that the frame seats abut against or are separated from the ground;

the frame body comprises a scissor telescopic joint arranged on the frame base and a platform arranged at the upper end of the scissor telescopic joint, a first sliding block is arranged on the lower end surface of the platform in a sliding mode, the first sliding block is hinged to the upper end of the scissor telescopic joint, a second sliding block is arranged on the frame base in a sliding mode, and the second sliding block is hinged to the lower end of the scissor telescopic joint;

and the frame base is provided with a lifting mechanism for driving the frame base to lift and/or the scissor type expansion joint to lift.

By adopting the technical scheme, when the scaffold needs to move, the lifting mechanism controls the frame base to ascend so as to enable the wheels to abut against the ground, and therefore the scaffold can be guaranteed to move stably;

after this scaffold removes, elevating system orders about the frame seat earlier and descends so that the lower terminal surface of frame seat contradicts to the removal of restriction wheel, from this, make this scaffold guarantee the stability of this scaffold in the use when guaranteeing to remove the transportation performance.

The utility model discloses further set up to: the lifting mechanism comprises a liquid storage tank, a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder which are all arranged on the frame base, the second hydraulic cylinder is used for controlling the frame base to lift, the third hydraulic cylinder is used for controlling the scissor type telescopic joint to lift, and the first hydraulic cylinder is used for conveying liquid to the second hydraulic cylinder and/or the third hydraulic cylinder;

the liquid storage tank is communicated with the first hydraulic cylinder through a first liquid pipe, a first one-way valve is arranged on the first liquid pipe, and the first one-way valve only allows liquid to flow from the liquid storage tank to the first hydraulic cylinder;

the first hydraulic cylinder is communicated with the second hydraulic cylinder through a second liquid pipe, a second one-way valve and a first opening and closing valve are arranged on the second liquid pipe, the second one-way valve only allows liquid to flow to the second hydraulic cylinder from the first hydraulic cylinder, and the first opening and closing valve is used for controlling the opening and closing of the second hydraulic pipe;

the first hydraulic cylinder is communicated with the third hydraulic cylinder through a third liquid pipe, a third one-way valve and a second opening and closing valve are arranged on the third liquid pipe, the third one-way valve only allows liquid to flow to the third hydraulic cylinder from the first hydraulic cylinder, and the second opening and closing valve is used for controlling the opening and closing of the third liquid pipe;

the second hydraulic cylinder is communicated with the liquid storage tank through a fourth liquid pipe, a third opening and closing valve is arranged on the second liquid pipe and is used for controlling the opening and closing of the fourth liquid pipe;

the third pneumatic cylinder with through fifth liquid pipe intercommunication between the liquid reserve tank, be provided with the fourth on-off valve on the second liquid pipe, the third on-off valve is used for controlling opening and close of fifth liquid pipe.

By adopting the technical scheme, the first opening and closing valve is opened so that the liquid in the first hydraulic cylinder can flow to the second hydraulic cylinder, and therefore the lifting mechanism can control the lifting of the frame seat;

opening the second opening and closing valve to enable the liquid in the first hydraulic cylinder to flow to the third hydraulic cylinder, so that the lifting mechanism can control the scissor-type telescopic joint to drive the platform to ascend;

opening a third opening and closing valve to enable the liquid in the second hydraulic cylinder to flow to the liquid storage tank, so that the lifting mechanism can control the frame seat to descend;

opening a fourth opening and closing valve to enable liquid in the third hydraulic cylinder to flow to the liquid storage tank, so that the lifting mechanism can control the scissor type telescopic joint to descend;

thereby the liquid reserve tank sets up on the mount has reduced the focus of this scaffold, from this for the stability in use of this scaffold is good.

The utility model discloses further set up to: the first hydraulic cylinder is fixedly connected with the frame base, a first piston rod is arranged on the first hydraulic cylinder, and a driving portion for driving the first piston rod to slide is fixedly arranged on the liquid storage tank.

By adopting the technical scheme, when the first piston rod slides towards the outside of the first hydraulic cylinder, the first hydraulic cylinder can introduce liquid into the liquid storage tank;

when the first piston rod slides towards the interior of the first hydraulic cylinder, the liquid in the first hydraulic cylinder flows to the second hydraulic cylinder through the second liquid pipe or flows to the third hydraulic cylinder through the third liquid pipe;

from this, first piston rod constantly makes a round trip to slide so that the liquid in the first pneumatic cylinder constantly flows to second pneumatic cylinder or third pneumatic cylinder for elevating system can realize the function of control lift, thereby improves the stability in use of this scaffold.

The utility model discloses further set up to: the driving part comprises a connecting rod, a cam and a driving motor, one end of the connecting rod is hinged to the end of the first piston rod, the other end of the connecting rod is hinged to the cam, the driving motor drives the cam to rotate, the driving motor is fixedly connected with the liquid storage tank, and a hinge point between the connecting rod and the cam is far away from a rotating center of the cam.

The output shaft of the driving motor is coaxially and fixedly arranged with the rotation center of the cam.

Through adopting above-mentioned technical scheme, driving motor orders about the cam and rotates in order to drive the connecting rod and remove to drive first piston rod reciprocating sliding.

The utility model discloses further set up to: the second hydraulic cylinder is fixedly connected with the frame seat, a second piston rod is arranged on the second hydraulic cylinder, the second piston rod slides along the vertical direction, and the end part of the second piston rod is fixedly connected with the wheel seat.

By adopting the technical scheme, the liquid in the second hydraulic cylinder is continuously supplemented to enable the second piston rod to slide towards the wheel seat along the vertical direction, so that the frame seat can stably rise;

when the third opening and closing valve is opened, the weight on the frame seat is applied to the frame seat so that the wheel seat is relatively close to the frame seat, and the second piston rod pushes the liquid in the second hydraulic cylinder to flow to the liquid storage tank so that the frame seat can stably descend.

The utility model discloses further set up to: the second hydraulic cylinder is "Jiong" style of calligraphy setting, the quantity of second piston rod is two, and two second piston rods are located the both ends of second hydraulic cylinder respectively.

Through adopting above-mentioned technical scheme, two second piston rods are located the relative both ends of second pneumatic cylinder to make the both ends of second pneumatic cylinder can be stable rise and descend, thereby improved the lift stability of mount, from this, make the stability in use of this scaffold good.

The utility model discloses further set up to: the third hydraulic cylinder is hinged to the frame base, a third piston rod is arranged on the third hydraulic cylinder, and the end of the third piston rod is hinged to a hinged point of the scissor telescopic joint.

By adopting the technical scheme, the liquid in the third hydraulic cylinder is continuously supplemented so that the third piston rod slides towards the direction close to the platform, and the scissor-type telescopic joint can stably drive the platform to ascend;

the liquid in the third hydraulic cylinder flows to the liquid storage tank so that the third piston rod slides towards the direction far away from the platform, and the scissor-type telescopic joint can stably drive the platform to descend;

therefore, the scaffold has good use stability.

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

1. when the scaffold moves, the lifting mechanism controls the frame base to ascend so that the wheels are abutted against the ground, and therefore the scaffold can be guaranteed to move stably; when this scaffold is in operating condition, elevating system drives the frame seat earlier and descends so that the lower terminal surface of frame seat contradicts to the removal of restriction wheel, from this, make this scaffold guarantee the stability of this scaffold in the use when guaranteeing to remove the transportation performance.

2. Thereby the liquid reserve tank sets up on the mount has reduced the focus of this scaffold, from this for the stability in use of this scaffold is good.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the installation structure of the present invention;

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

FIG. 4 is a schematic view of the mounting structure of the elevator mechanism;

FIG. 5 is an enlarged partial view of portion B of FIG. 4;

fig. 6 is a schematic view of the installation structure of the first liquid pipe.

In the figure, 1, a vehicle body; 11. a wheel; 12. a wheel seat; 13. a frame seat; 2. a frame body; 21. a scissor-fork expansion joint; 22. a station; 23. a first slider; 24. a second slider; 3. a lifting mechanism; 31. a liquid storage tank; 32. a first hydraulic cylinder; 321. a first piston rod; 322. a drive section; 3221. a connecting rod; 3222. a cam; 3223. a drive motor; 33. a second hydraulic cylinder; 331. a second piston rod; 34. a third hydraulic cylinder; 341. a third piston rod; 35. a first liquid pipe; 351. a first check valve; 36. a second liquid pipe; 361. a second one-way valve; 362. a first opening and closing valve; 37. a third liquid pipe; 371. a third check valve; 372. a second opening and closing valve; 38. a fourth liquid pipe; 381. a third opening and closing valve; 39. a fifth liquid pipe; 391. and a fourth opening and closing valve.

Detailed Description

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 and 2, for the utility model discloses a scaffold for housing construction, including automobile body 1 and the support body 2 that sets up in automobile body 1 top. The support body 2 is used for the staff to stand and work, and the automobile body 1 is used for controlling the removal of this scaffold and fixes so that the staff on the support body 2 can work smoothly.

Specifically, the vehicle body 1 includes a wheel 11, a wheel seat 12 to which the wheel 11 is mounted, and a frame seat 13 to which the frame body 2 is mounted.

The frame base 13 is a rectangular frame. The cross section of the long side of the frame base 13 is in an inverted U shape, and two ends of the U shape are used for abutting against the ground.

The wheel seat 12 is rectangular and long. The wheel seat 12 is located inside the U shape of the frame seat 13, and two ends of the wheel seat 12 in the length direction face two ends of the U shape of the frame seat 13. The number of the wheel seats 12 is two, and the two wheel seats 12 are located on both sides of the frame base 13 in the width direction.

The number of the wheels 11 on a single wheel seat 12 is two, and the two wheels 11 are respectively positioned at two ends of the wheel seat 12 in the length direction.

The frame base 13 and the wheel base 12 are connected in a sliding manner in the vertical direction so that the frame base 13 can be abutted against or separated from the ground. When the frame base 13 is separated from the ground, the wheels 11 of the wheel base 12 are abutted against the ground to enable the scaffold to smoothly slide. When the two ends of the U-shaped frame base 13 are abutted against the ground, the friction between the frame base 13 and the ground diameter is increased, so that the movement of the scaffold is limited, the scaffold can be stably placed on the ground, and the work of workers is facilitated.

Specifically, the rack body 2 includes a scissor-type telescopic joint 21 provided to the rack base 13 and a platform 22 provided to an upper end of the scissor-type telescopic joint 21.

Platform 22 includes a deck on which workers stand and a fence disposed around the perimeter of the deck. The bedplate is arranged in a cuboid plate shape, and the length direction of the bedplate is the same as that of the frame base 13. Preferably, the length of the platen is less than the length of the shelf 13 and the width of the platen is less than the width of the shelf 13. The center of gravity of the bedplate is always positioned right above the end surface of the frame base 13.

The lower end surface of the platen is provided with a first slider 23 in a sliding manner. The number of the first sliders 23 is two. The two first sliding blocks 23 are positioned at one end of the length direction of the bedplate and are distributed at intervals along the width direction of the bedplate. Both first slides 23 slide along the length of the platen.

The upper end surface of the frame base 13 is provided with a second slide block 24 in a sliding way. The number of the second sliders 24 is two. The two second sliding blocks 24 are located at one end of the frame base 13 in the length direction, and are distributed at intervals along the width direction of the frame base 13. The two second sliding blocks 24 slide along the length direction of the frame base 13, and the sliding direction is always the same as or opposite to the sliding direction of the first sliding block 23.

Scissor telescopic joint 21 is capable of telescoping in a vertical direction to raise and lower platform 22. The upper end of the scissor telescopic joint 21 is provided with four hinged mounting points, and the lower end of the scissor telescopic joint 21 is also provided with four hinged mounting points.

The upper end of the scissor-type telescopic joint 21 is provided with four hinged mounting points, wherein two hinged points moving in the same direction are respectively hinged with the two first sliding blocks 23, and the other two hinged points are hinged with the lower end surface of the platform 22.

The lower end of the scissor-type telescopic joint 21 is provided with four hinged mounting points, wherein two hinged points moving in the same direction are respectively hinged with the two second sliding blocks 24, and the other two hinged points are hinged with the upper end surface of the frame base 13.

Further, the frame base 13 is provided with a lifting mechanism 3 for driving the frame base 13 to lift and/or the scissor expansion joint 21 to lift. The lifting mechanism 3 may drive the frame base 13 and the scissor-type telescopic joint 21 to lift at the same time, or may drive only the frame base 13 or the scissor-type telescopic joint 21 to lift.

Specifically, referring to fig. 4 and 5, the lifting mechanism 3 includes a liquid storage tank 31, a first hydraulic cylinder 32, a second hydraulic cylinder 33, and a third hydraulic cylinder 34, all of which are mounted on the frame base 13, the second hydraulic cylinder 33 is used for controlling the frame base 13 to lift, the third hydraulic cylinder 34 is used for controlling the scissor-type telescopic joint 21 to lift, and the first hydraulic cylinder 32 is used for conveying liquid to the second hydraulic cylinder 33 and/or the third hydraulic cylinder 34.

The liquid storage tank 31 is in a rectangular parallelepiped box shape. The liquid storage tank 31 is fixedly connected with the frame base 13 and is positioned between the two wheel bases 12. The liquid storage tank 31 is filled with liquid to supply hydraulic pressure to the lifting mechanism 3. Preferably, the liquid is hydraulic oil. Due to the mass of the liquid storage tank 31, the gravity center position of the scaffold is lowered, so that the use stability of the scaffold is improved.

The first hydraulic cylinder 32 is arranged in a circular tube shape. The first hydraulic cylinder 32 is fixedly connected to the frame base 13. Preferably, the first hydraulic cylinder 32 is located right above the liquid storage tank 31, and a lower end surface of the first hydraulic cylinder 32 abuts against an upper end surface of the liquid storage tank 31.

The first hydraulic cylinder 32 has a first piston rod 321 thereon, and the first piston rod 321 slides in the vertical direction. When the first piston rod 321 slides outward of the first hydraulic cylinder 32, the first hydraulic cylinder 32 can draw in liquid from the tank 31. When the first piston rod 321 slides toward the inside of the first hydraulic cylinder 32, the fluid in the first hydraulic cylinder 32 flows to the second hydraulic cylinder 33 through the second fluid pipe 36 or flows to the third hydraulic cylinder 34 through the third fluid pipe 37.

A driving portion 322 for driving the first piston rod 321 to slide is fixedly disposed on the reservoir 31. The driving part 322 includes a connecting rod 3221 having one end hinged to the end of the second piston rod, a cam 3222 hinged to the other end of the connecting rod 3221, a driving motor 3223 for driving the cam 3222 to rotate, and a battery for supplying electric energy to the driving motor 3223. A hinge point between the link 3221 and the cam 3222 is far away from a rotation center of the cam 3222, so that the link 3221 can move while the cam 3222 rotates, thereby driving the first piston rod 321 to reciprocate. The driving motor 3223 is fixedly connected with the liquid storage tank 31, and the storage battery is fixedly connected with the liquid storage tank 31 or the frame base 13. An output shaft of the driving motor 3223 is coaxially and fixedly provided with a rotation center of the cam 3222.

Referring to fig. 6, the reservoir 31 communicates with the first hydraulic cylinder 32 through a first liquid pipe 35. One end of the first liquid pipe 35 is fixedly connected with the lower end face of the first hydraulic cylinder 32, and the other end of the first liquid pipe 35 extends into the liquid storage tank 31. Preferably, the opening of the other end of the first liquid pipe 35 is connected to the bottom surface of the inside of the liquid storage tank 31, and the side wall of the opening of the other end of the first liquid pipe 35 is provided with a liquid inlet hole, so that the position of the first liquid pipe 35 in the liquid storage tank 31 is stable, thereby ensuring the stability of the oil supply of the first hydraulic cylinder 32.

The first liquid pipe 35 is provided with a first check valve 351. The first check valve 351 is located on the side of the intake opening toward the first hydraulic cylinder 32. The first check valve 351 allows only the fluid from the tank 31 to flow into the first cylinder 32, thereby ensuring that the fluid in the first cylinder 32 does not flow back into the tank 31.

Referring to fig. 3 and 4, the second hydraulic cylinder 33 is provided in the shape of "Jiong". The number of the second hydraulic cylinders 33 is two. The two second hydraulic cylinders 33 are both fixedly connected to the lower end surface of the frame base 13 and are respectively located above the two wheel bases 12.

The second hydraulic cylinder 33 has a second piston rod 331. The number of the second piston rods 331 of the single second hydraulic cylinder 33 is two, and the two second piston rods 331 are respectively located at both ends of the second hydraulic cylinder 33, so that both ends of the second hydraulic cylinder 33 can be stably raised and lowered. The end of the second piston rod 331 is fixedly connected to the wheel base 12. The second piston rod 331 slides in the vertical direction. The liquid in the second hydraulic cylinder 33 is continuously replenished to make the second piston rod 331 slide toward the wheel seat 12 in the vertical direction, so as to push the second hydraulic cylinder 33 to ascend to enable the frame base 13 to stably ascend.

Referring to fig. 5, the first cylinder 32 and the second cylinder 33 communicate with each other through a second liquid pipe 36. One end of the second hydraulic pipe 36 is fixedly connected to the side wall of the first hydraulic cylinder 32, and the other end of the second hydraulic pipe 36 is fixedly connected to the upper end surface of the second hydraulic cylinder 33.

The second liquid pipe 36 is provided with a second check valve 361 and a first open/close valve 362. Second check valve 361 allows fluid to flow only from within first cylinder 32 to second cylinder 33, thereby ensuring that fluid within second cylinder 33 does not flow back into first cylinder 32. The first opening/closing valve 362 is used to control the opening/closing of the second liquid pipe 36. The first opening/closing valve 362 is opened to allow the fluid in the first hydraulic cylinder 32 to flow into the second hydraulic cylinder 33, and the first opening/closing valve 362 is closed to prevent the fluid in the first hydraulic cylinder 32 from flowing into the first hydraulic cylinder 32.

The second hydraulic cylinder 33 and the reservoir 31 communicate with each other through a fourth liquid pipe 38. One end of the fourth liquid pipe 38 is fixedly connected and communicated with the second liquid pipe 36, and the communication position is located on the second liquid pipe 36 away from the second check valve 361 and the first opening and closing valve 362 so as to be close to one end of the second hydraulic cylinder 33. The other end of the fourth liquid pipe 38 is fixedly connected to the upper end surface of the liquid storage tank 31.

The second liquid pipe 36 is provided with a third open/close valve 381, and the third open/close valve 381 is used for controlling the opening and closing of the fourth liquid pipe 38. The third open/close valve 381 is opened to allow the liquid in the second hydraulic cylinder 33 to flow to the reservoir 31. When the third opening/closing valve 381 is opened, the weight of the frame base 13 is applied to the frame base 13 to relatively approach the wheel base 12 to the frame base 13, and the second piston rod 331 pushes the fluid in the second hydraulic cylinder 33 to flow to the fluid storage tank 31, so that the frame base 13 can be stably lowered.

Referring to fig. 1 and 2, the third hydraulic cylinder 34 is provided in a cylindrical shape. The lower end of the third hydraulic cylinder 34 is hinged with the frame base 13. The third hydraulic cylinder 34 has a third piston rod 341, and an end of the third piston rod 341 is hinged to a hinge point of the scissor-type telescopic joint 21. The third piston rod 341 slides in a direction approaching or departing from the platform 22 to drive the scissor-type telescopic joint 21 to extend and retract, thereby driving the platform 22 to ascend and descend.

The liquid in the third hydraulic cylinder 34 is continuously supplemented to make the third piston rod 341 slide toward the direction close to the platform 22, so that the scissor-type telescopic joint 21 can stably drive the platform 22 to rise. The liquid in the third hydraulic cylinder 34 flows to the reservoir 31 to slide the third piston rod 341 away from the platform 22, so that the scissor-type telescopic joint 21 can stably drive the platform 22 to descend.

Referring to fig. 5, the first hydraulic cylinder 32 communicates with the third hydraulic cylinder 34 through a third fluid line 37. One end of the third liquid pipe 37 is fixedly connected with the side wall of the first hydraulic cylinder 32, and the other end of the third liquid pipe 37 is fixedly connected with the lower end of the third hydraulic cylinder 34.

The third liquid pipe 37 is provided with a third check valve 371 and a second on-off valve 372. Third check valve 371 allows fluid to flow only from within first cylinder 32 to third cylinder 34, thereby ensuring that fluid within third cylinder 34 does not flow back into first cylinder 32. The second on-off valve 372 is used for controlling the on-off of the third liquid pipe 37. The second opening/closing valve 372 is opened to allow the fluid in the first hydraulic cylinder 32 to flow into the third fluid pipe 37, and the second opening/closing valve 372 is closed to prevent the fluid in the first hydraulic cylinder 32 from flowing into the third fluid pipe 37.

The third hydraulic cylinder 34 communicates with the reservoir 31 through a fifth liquid pipe 39. One end of the fifth liquid pipe 39 is fixedly connected and communicated with the third liquid pipe 37, and the communication position is located on the third liquid pipe 37 away from the third check valve 371 and the second opening and closing valve 372 to be close to one end of the third hydraulic cylinder 34. The other end of the fifth liquid pipe 39 is fixedly connected to the upper end surface of the liquid storage tank 31.

The second liquid pipe 36 is provided with a fourth opening/closing valve 391, and the third opening/closing valve 381 is used for controlling the opening/closing of the fifth liquid pipe 39. The fourth opening/closing valve 391 is opened to allow the liquid in the third hydraulic cylinder 34 to flow to the reservoir 31. When the fourth opening/closing valve 391 is opened, the weight of the platform 22 is applied to the scissor-type telescopic joint 21 so that the platform 22 and the scissor-type telescopic joint 21 can be relatively close to each other, and the third piston rod 341 pushes the liquid in the third hydraulic cylinder 34 to flow to the tank 31, so that the platform 22 can be stably lowered.

The implementation principle of the embodiment is as follows: when the scaffold needs to move, the first opening and closing valve 362 is opened, the second opening and closing valve 372, the third opening and closing valve 381 and the fourth opening and closing valve 391 are closed, the driving motor 3223 drives the cam 3222 to rotate so as to drive the connecting rod 3221 to move, so that the first piston rod 321 is driven to reciprocate, liquid in the first hydraulic cylinder 32 flows to the second hydraulic cylinder 33, the frame base 13 rises to be separated from the ground, and the wheel 11 abuts against the ground;

when the scaffold needs to be positioned after moving, the first opening/closing valve 362 is closed and the third opening/closing valve 381 is opened, the lifting mechanism 3 lowers the frame base 13 to make the lower end surface of the frame base 13 contact with each other, thereby limiting the movement of the wheels 11,

when the scaffold is in the working state, the third open/close valve 381 is closed and the second open/close valve 372 is opened, the driving motor 3223 drives the cam 3222 to rotate to drive the connecting rod 3221 to move, so as to drive the first piston rod 321 to reciprocate to make the fluid in the first hydraulic cylinder 32 flow to the third hydraulic cylinder 34, so as to drive the third piston rod 341 to move towards the platform 22, so as to raise the platform 22;

when the scaffolding is finished, the third opening/closing valve 381 is closed and the fourth opening/closing valve 391 is opened, and the third piston rod 341 slides toward the third hydraulic cylinder 34 by the gravity of the platform 22, so that the platform 22 is lowered.

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. A scaffold for house building is characterized by comprising a vehicle body (1) and a frame body (2) arranged above the vehicle body (1),

the vehicle body (1) comprises wheels (11), wheel seats (12) for mounting the wheels (11) and frame seats (13) for mounting the frame body (2), the frame seats (13) are connected with the wheel seats (12) in a sliding mode along the vertical direction so that the frame seats (13) are abutted to or separated from the ground,

the frame body (2) comprises a scissor telescopic joint (21) arranged on the frame base (13) and a platform (22) arranged at the upper end of the scissor telescopic joint (21), a first sliding block (23) is arranged on the lower end face of the platform (22) in a sliding mode, the first sliding block (23) is hinged to the upper end of the scissor telescopic joint (21), a second sliding block (24) is arranged on the frame base (13) in a sliding mode, and the second sliding block (24) is hinged to the lower end of the scissor telescopic joint (21);

the frame base (13) is provided with a lifting mechanism (3) for driving the frame base (13) to lift and/or the scissor telescopic joint (21) to lift.

2. A scaffolding for house building according to claim 1, characterized in that the lifting mechanism (3) comprises a liquid storage tank (31), a first hydraulic cylinder (32), a second hydraulic cylinder (33) and a third hydraulic cylinder (34) all mounted on the base (13), the second hydraulic cylinder (33) is used for controlling the base (13) to lift, the third hydraulic cylinder (34) is used for controlling the scissor-type telescopic joint (21) to lift, the first hydraulic cylinder (32) is used for feeding liquid to the second hydraulic cylinder (33) and/or the third hydraulic cylinder (34),

the liquid storage tank (31) is communicated with the first hydraulic cylinder (32) through a first liquid pipe (35), a first one-way valve (351) is arranged on the first liquid pipe (35), and the first one-way valve (351) only allows liquid to flow from the inside of the liquid storage tank (31) to the first hydraulic cylinder (32);

the first hydraulic cylinder (32) is communicated with the second hydraulic cylinder (33) through a second liquid pipe (36), a second one-way valve (361) and a first opening and closing valve (362) are arranged on the second liquid pipe (36), the second one-way valve (361) only allows liquid to flow from the first hydraulic cylinder (32) to the second hydraulic cylinder (33), and the first opening and closing valve (362) is used for controlling the opening and closing of the second liquid pipe (36);

the first hydraulic cylinder (32) is communicated with the third hydraulic cylinder (34) through a third liquid pipe (37), a third one-way valve (371) and a second opening and closing valve (372) are arranged on the third liquid pipe (37), the third one-way valve (371) only allows liquid to flow from the first hydraulic cylinder (32) to the third hydraulic cylinder (34), and the second opening and closing valve (372) is used for controlling the opening and closing of the third liquid pipe (37);

the second hydraulic cylinder (33) is communicated with the liquid storage tank (31) through a fourth liquid pipe (38), a third opening and closing valve (381) is arranged on the second liquid pipe (36), and the third opening and closing valve (381) is used for controlling the opening and closing of the fourth liquid pipe (38);

the third hydraulic cylinder (34) is communicated with the liquid storage tank (31) through a fifth liquid pipe (39), a fourth opening and closing valve (391) is arranged on the second liquid pipe (36), and the third opening and closing valve (381) is used for controlling the opening and closing of the fifth liquid pipe (39).

3. A scaffold for building construction according to claim 2, wherein said first hydraulic cylinder (32) is fixedly connected to said frame base (13), said first hydraulic cylinder (32) having a first piston rod (321), said tank (31) having a driving portion (322) fixedly disposed thereon for driving said first piston rod (321) to slide.

4. The scaffold for house building according to claim 3, wherein the driving part (322) comprises a connecting rod (3221) with one end hinged to the end of the first piston rod (321), a cam (3222) for hinged connection of the other end of the connecting rod (3221), and a driving motor (3223) for driving the cam (3222) to rotate, the driving motor (3223) is fixedly connected with the liquid storage tank (31), and a hinge point between the connecting rod (3221) and the cam (3222) is far away from a rotation center of the cam (3222).

5. A scaffold for building construction according to claim 2, characterized in that said second hydraulic cylinder (33) is fixedly connected to said frame base (13), said second hydraulic cylinder (33) having a second piston rod (331) thereon, said second piston rod (331) sliding in a vertical direction, the end of said second piston rod (331) being fixedly connected to said wheel base (12).

6. The scaffold for house building according to claim 5, wherein said second hydraulic cylinder (33) is formed in a shape of "Jiong", said second piston rods (331) are two in number, and two second piston rods (331) are respectively located at both ends of the second hydraulic cylinder (33).

7. A scaffold for building construction according to claim 2, wherein the third hydraulic cylinder (34) is hinged to the frame base (13), the third hydraulic cylinder (34) is provided with a third piston rod (341), and the end of the third piston rod (341) is hinged to the hinge point of the scissor telescopic joint (21).