CN108609524B - lift for building construction - Google Patents

Abstract

The application discloses a lifting ladder for building construction, which includes a base frame, four lifting step modules with the same structure, and a safety device. Four lifting step modules are arranged on the base frame. , the lead screw is screwed into the lead screw nut, the lead screw nut is connected to the step plate through the left and right side support beams, the base frame is provided with a guide device for the step plate along the up and down direction, and the synchronous pulley set by the lifting step module is installed through the electromagnetic clutch device On the lead screw, the motor reducer drives the rotating shaft to rotate, and the fixed synchronous pulley 5 on the rotating shaft forms a belt transmission with the synchronous pulley provided by each lifting step module through the synchronous belt. A security device is hinged between them, and the security device includes two slide bars that slide against each other. The sliding positions of the two slide bars can be adjusted and fixed, and the ends of the two slide bars in the direction away from each other are respectively hinged with the adjacent step plate. , to achieve individual adjustment of the height of the step plate.

Description

lift for building construction

technical field

The invention relates to an elevator for building construction, which belongs to the field of building construction equipment.

Background technique

my country is a country with a large population. With the advancement of industrialization, my country's construction industry is also booming. The current large-scale construction machinery is developing by leaps and bounds with the market demand, while some small-scale construction equipment cannot meet the needs of construction. For example, when manually transporting building materials to high places, wooden ladders are usually used, which have a simple structure, poor safety, and the height cannot be adjusted, or when performing wall decoration and painting, a relatively stable height-adjustable lift is required, and at the same time It is convenient to go up and down the elevator repeatedly.

This application adopts four or more step-down modules with the same structure, through the motor reducer and bevel gear transmission mechanism, and at the same time realizes the pulley rotation of all the step-down modules through belt transmission, saving costs; each step-up module is equipped with an electromagnetic Clutch device, the control system controls the clutch of the electromagnetic clutch device to realize the individual control of each lifting module; the lifting module adopts a nut screw mechanism, which has good self-locking performance and high safety. At the same time, there are up and down guides on both sides of the lifting module. The telescopic guide rail ensures the stability of the lifting steps on the lifting step module; two adjacent lifting steps are hinged with a safety device, which improves the safety of the lifting steps; the safety device adopts two mutual sliding rods and a rack and pinion mechanism , The rack and the gear can be meshed or separated to realize the adjustment or fixation of the sliding position of the two sliding rods; the safety device uses magnets and Hall elements to prevent misoperation without contact with the safety measures and damage to the safety device.

Contents of the invention

The purpose of the present invention is to provide a plurality of lifting steps driven by a motor, the height of each step can be adjusted, and the step is hinged with a safety device to prevent the position of the step from changing.

The object of the present invention is achieved in the following way: a lift for building construction, comprising a base frame 1, a lifting step module one 2, a lifting step module two 3, a lifting step module three 4, a lifting step module four 5, a security device, a synchronization Belt 9, motor 10, bevel gear 1 13, bevel gear 2 14, synchronous pulley 5 15, control system, the front side of the base frame 1 is provided with a slope surface protruding towards the front and below, and the slope surface is fixed Slope plate 6, the above-mentioned four lifting step modules are sequentially arranged on the base frame 1 from back to front, and the four lifting step modules have the same structure;

Described ascending and descending step module one 2 comprises step plate one 201, synchronous pulley one 204, electromagnetic clutch device one 206, leading screw nut one 210, leading screw one 211, guiding device, and described leading screw one 211 is screwed together Leading screw nut one 210, leading screw nut one 210 left side fixes the lower end of left support beam one 202, leading screw nut one 210 left and right sides respectively fix the lower end of left and right side support beams, left and right side support beams The upper end is fixed with step plate one 201, and described base frame 1 is provided with the guiding device of step plate one 201 along the up and down direction, and the cylindrical shaft of lead screw one 211 bottom is equipped with electromagnetic clutch device one 206, and electromagnetic clutch device one includes electromagnetic clutch device one. Clutch one 2061, rotating disk 2062, the endoporus of electromagnetic clutch one 2061 is fixed on the leading screw one 211, the shell of electromagnetic clutch one 2061 is fixedly connected with rotating disk 2062, and rotating disk 2062 endoporus is connected with leading screw one 211 rotationally, rotates Disk 2062 fixes synchronous pulley one 204;

The output shaft of the motor 10 is fixed to the input shaft hole of the reducer 12, the output shaft of the reducer 12 is fixed to the bevel gear one 13, the motor 10 and the reducer 12 are fixed on the base frame 1, the bevel gear one 13 and the bevel gear two 14 meshing, the bevel gear 2 14 is fixed on the top of the rotating shaft 18, and the bottom of the rotating shaft 18 is fixed with the synchronous pulley 5 15, the base frame 1 is provided with the rotation support of the rotating shaft 18, and the synchronous pulley 5 15 passes through the synchronous belt 9 at the same time Form a belt drive with the synchronous pulleys in the above four step-lifting modules;

A safety device is hinged between each step plate of the above four lifting step modules. The safety device includes two slide bars that slide against each other. The sliding positions of the two slide bars can be adjusted and fixed. The direction in which the two slide bars move away from each other The ends of each are hinged to the adjacent step plates;

The electromagnetic clutches and the motor 10 of the above-mentioned four lifting and lowering modules are connected with the control system through lines.

Described security device comprises security device one 7, security device two 72, security device three 71, the step board one 201 of lifting step module one 2, the step board two 301 of lifting step module two 3, the step of lifting step module three 4 Plate three 401, the lower surface of the right rear end of the step plate four 501 of the lifting step module four 5 respectively fix hinge seat one 21, hinge seat two 22, hinge seat three 23, hinge seat four 24, hinge seat one 21 through the pin Four 28 are hinged with rear mounting hole one 7051 of safety device one 7, the middle part of hinge seat two 22 fixed column pin three 27, column pin three 27 left ends are rotationally connected with front side mounting hole one 7011 of security device one 7, column pin Three 27 right ends rotate and connect the rear side installation hole two of security device two 72, hinge seat three 23 fix the middle part of column pin two 26, column pin two 26 right ends are rotatably connected with the front side installation hole two of security device two 72, column pin two 26 the left end rotates and connects the rear mounting hole three of security device three 71, the hinge seat four 24 hinges the front side mounting hole three of security device three 71 through column pin one 25, described security device one 7, security device two 72, security Device three 71 have the same structure.

The safety device-7 includes a front slide bar-701, an upper rack-702, a spur gear-703, an elastic pull wire-704, a rear slide bar-705, a gear rotating shaft-706, a lower rack-707, and a handwheel shaft- 708, hinge shaft one 709, upper fixed shaft one 710, lower fixed shaft one 711, the front end of the front slide bar one 701 is provided with a front mounting hole one 7011, and the rear side of the rear slide bar one 705 is provided with There is a rear mounting hole 7051, the front slide bar 701 is provided with a T-shaped slot along the front and rear direction, the rear slide bar 705 is provided with a T-shaped bar adapted to the T-shaped slot, and the front slide bar 1 701 is slidably connected with rear slide bar one 705, the front part of front slide bar one 701 fixes the right part of hinge shaft one 709, and the left part of hinge shaft one 709 is rotationally connected with the front ends of upper rack one 702 and lower rack one 707, The right end of the hand wheel shaft one 708 is rotationally connected with the front slide bar one 701, and the middle part of the hand wheel shaft one 708 is arranged as a cuboid, and the distance from the upper surface 7081 to the lower surface of the cuboid is smaller than the distance from the front surface 7082 to the rear surface. The T-shaped bar front end of rear slide bar one 705 is fixed to the gear shaft one 706 that stretches out to the right, and the right end of the gear shaft one 706 rotates and installs cylindrical gear one 703, and the gear teeth of the upper rack one 702 and the lower rack one 707 are uniform Facing cylindrical gear 1 703, the cuboid upper surface provided on hand wheel shaft 1 708 fits with the upper fitting surface provided on the front of upper rack 1 702, and the cuboid lower surface provided on hand wheel shaft 1 708 and lower rack 1 707 The lower fitting surface of the front part is fitted, the middle left side surface of the upper rack one 702 is fixed to the upper fixed shaft one 710 protruding to the left, and the middle left side surface of the lower rack one 707 is fixed to the left The protruding lower fixed shaft one 711, the upper fixed shaft one 710 and the lower fixed shaft one 711 are connected by elastic pull wire one 704.

The left end of the hand wheel shaft 708 is fixed with a hand wheel. When the upper surface of the cuboid set on the hand wheel shaft 708 is fitted with the upper fitting surface of the front part of the upper rack 702, the lower surface of the cuboid set on the hand wheel shaft 708 When fitting with the lower fitting surface provided on the front part of the lower rack 707, the upper rack 1 702, the lower rack 707 mesh with the cylindrical gear 703, and when the handwheel shaft 1 708 rotates 90 degrees, the upper gear Bar one 702, lower rack one 707 are away from by the cuboid on the handwheel shaft one 708 up and down, elastic backguy one 704 is elongated, and upper rack one 702, lower rack one 707 do not contact with cylindrical gear one 703.

The safety device-7 also includes a swing rod-712, a magnetic steel-713, a Hall element 714, and a Hall element fixing frame 715. After the handwheel shaft-708 passes through the front slide bar-701 to the right, it is fixed The front end of the swing rod 1712 is horizontally arranged along the front and rear directions, and the rear end of the fixed swing rod 712 is fixed with a magnet 713, and the corresponding position of the magnet 713 is provided with a Hall element 714, and the Hall element is fixed. The frame 715 is fixed on the front slide bar one 701, the Hall element 714 is fixed on the Hall element fixing frame 715, and the Hall elements of the security device one 7, the security device two 72, and the security device three 71 pass through the circuit and the control system connection, when the Hall element 714 corresponds to the position of the magnetic steel one 713, the control system controls the electromagnetic clutch of the connected lifting step module of the safety device one 7 to be unable to be energized.

The above-mentioned five synchronous pulleys are all located on the inner side of the synchronous belt 9, and a tensioning device 8 is arranged between adjacent two synchronous pulleys in synchronous pulley one 204 to synchronous pulley four 504 for tensioning the synchronous belt 9 .

The tensioning device 8 includes a tensioning wheel 801, a tensioning frame 802, a tensioning shaft 803, and a lock nut 804. The tensioning frame 802 is fixed on the base frame 1, and the tensioning frame 802 There are up and down through grooves 8021 along the left and right directions. The lower end of the tensioning shaft 803 is provided with a threaded rod. The threaded rod passes through the through grooves 8021 downwards to screw the locking nut 804 to realize the position adjustment of the tensioning shaft 803 in the left and right directions. Tighten the locking nut 804, which is used to clamp the tension frame 802 between the shoulder and the nut on the upper part of the threaded rod. The upper end of the tension shaft 803 is looped with a tension wheel 801. The tension wheel 801 fits with the timing belt 9 and is tensioned. The wheel 801 is located on the outside of the timing belt 9 .

The first screw nut 210 and the first screw 211 are connected by a self-locking screw pair.

Described guiding device comprises right telescopic guide rail one 208, left telescopic guide rail one 203, and described right telescopic guide rail one 208, the structure of left telescopic guide rail one 203 is identical, and described right telescopic guide rail one 208 comprises Right elevating rod 2081, right fixed rod 2082, right elevating rod 2081 upper end fixes right guide rail connecting plate 2083, described right fixed rod 2082 is fixed on the base frame 1, described right elevating rod 2081 and right fixed rod 2082 are slidingly connected , the right rail connecting plate 2083 is fixed on the lower surface of the step plate one 201 .

The structure of the rotating support provided with the rotating shaft 18 on the base frame 1 is as follows: the upper and lower ends of the rotating shaft 18 are respectively equipped with a bearing seat 5 17 and a bearing seat 6 19, and the bearing seat 5 17 is fixed on the mounting plate 16 on the rotating shaft, and the bearing seat Six 19 is installed on the mounting plate 20 under the rotating shaft, the mounting plate 16 on the rotating shaft, and the mounting plate 20 under the rotating shaft are fixed on the base frame 1.

Compared with prior art, the present invention has following advantage:

1. This application adopts four or more lifting modules with the same structure, through the motor reducer and bevel gear transmission mechanism, and at the same time realizes the pulley rotation of all lifting modules through belt transmission, saving costs;

2. Each lifting step module is equipped with an electromagnetic clutch device, and the control system controls the clutch of the electromagnetic clutch device to realize individual control of each step lifting module;

3. The lifting step module adopts a nut screw mechanism, which has good self-locking performance and high safety. At the same time, the two sides of the lifting step module are equipped with up and down telescopic guide rails to ensure the stability of the lifting steps on the lifting step module;

4. Two adjacent lifting steps are hinged with a safety device, which improves the safety of the lifting steps;

5. The security device adopts two mutual sliding rods and a rack and pinion mechanism, the rack and the gear can be engaged or separated, and the sliding position of the two sliding rods can be adjusted or fixed;

6. The safety device is used by magnets and Hall elements to prevent misoperation without contact with safety measures and damage to the safety device.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the elevator used in building construction.

Figure 2 is a schematic diagram of the structure of the step-down module.

Figure 3 is the second structural diagram of the step-down module.

Fig. 4 is a schematic diagram of the electromagnetic clutch device and the installation structure with the synchronous pulley.

Fig. 5 is a structural schematic diagram of the telescopic guide rail.

Fig. 6 is a structural schematic diagram of the arrangement of the motor reducer and the arrangement of four lifting step modules of the elevator.

Fig. 7 is a schematic diagram of the transmission connection structure of the motor reducer, the bevel gear and the pulley of the elevator.

Fig. 8 is a schematic diagram of the structure of the tensioning device for tensioning the synchronous belt.

Fig. 9 is a structural schematic diagram of a safety device arranged between the lifting and lowering modules.

Fig. 10 is a schematic diagram of the first structure of the security device.

Fig. 11 is a schematic diagram of the second structure of the security device.

Fig. 12 is a schematic diagram of the third structure of the security device.

Fig. 13 is a schematic diagram of the fourth structure of the security device.

Fig. 14 is a schematic structural view of the lower rack one.

Fig. 15 is a schematic structural view of the upper rack one.

Detailed ways

1 to 15, a building construction elevator according to the present invention includes a base frame 1, a lifting module 2, a lifting module 2, a lifting module 3, a lifting module 4, a lifting module 5, and a slope plate 6. Security device 1 7, security device 2 72, security device 3 71, tensioning device 8, timing belt 9, motor 10, motor fixing plate 11, reducer 12, bevel gear 1 13, bevel gear 2 14, timing pulley 5 15. Mounting plate 16 on the rotating shaft, bearing seat 5 17, rotating shaft 18, bearing seat 6 19, mounting plate 20 under the rotating shaft, hinge seat 1 21, hinge seat 2 22, hinge seat 3 23, hinge seat 4 24, column pin 1 25. Column pin 2 26, column pin 3 27, column pin 4 28, control system, the direction towards the slope plate 6 is defined as the front, and the direction towards the safety device 1 7 is defined as the left, so as to describe the application, so The front side of the base frame 1 is provided with a slope facing forward and downward, the angle between the slope and the horizontal direction is 30-45 degrees, and the slope plate 6 is fixed on the slope to facilitate the construction materials It is transported to the elevator by manual or by cart, and the base frame 1 is sequentially provided with four lifting modules from the back to the front, which are the first lifting module 2, the second lifting module 3, and the lifting module. 3.4. Step-lifting module 4.5. The above-mentioned step-lifting modules have the same structure, and the lower end of the base frame 1 is provided with eight universal wheels 101 with brakes.

The lifting step module one 2 includes a step plate one 201, a left support beam one 202, a left telescopic guide rail one 203, a synchronous pulley one 204, a bearing seat one 205, an electromagnetic clutch device one 206, and a lower support plate one 207 , the right telescopic guide rail one 208, the right support beam one 209, the leading screw nut one 210, the leading screw one 211, the left telescopic guide rail one 203 has the same structure as the right telescopic guide rail one 208, and the left side telescopic guide rail one 208 has the same structure. The support beam one 202 and the right side support beam 209 have an axisymmetric structure with respect to the lead screw one 211, the screw nut one 210 is screwed on the lead screw one 211, and the left side of the lead screw nut one 210 fixes the left side support beam one 202 The lower end of the left side support beam one 202 stretches out from bottom to top to the left side, the upper end of the left side support beam one 202 is fixed on the left part of the step plate one 201, and the right side of the screw nut one 210 fixes the right side support beam one 209 The lower end of the right side support beam one 209 extends to the right side from bottom to top, the upper end of the right side support beam one 209 is fixed on the right part of the step plate one 201, the step plate one 201 is positioned at the top of the lead screw one 211, and the lead screw one Electromagnetic clutch device one 206 is installed on the cylindrical shaft of 211 bottoms, and electromagnetic clutch device one comprises electromagnetic clutch one 2061, rotating disc 2062, and the endoporus of electromagnetic clutch one 2061 is a fixed end, and the shell of electromagnetic clutch one 2061 is a rotating end, and electromagnetic clutch one 2061 is a rotating end. The inner hole of the clutch one 2061 is fixed on the leading screw one 211, the shell of the electromagnetic clutch one 2061 is fixedly connected with the rotating disk 2062, the rotating disk 2062 endoporus is connected with the leading screw one 211 in rotation, the rotating disk 2062 fixes the synchronous pulley one 204, The electromagnetic clutch one is that the fixed end of the electromagnetic clutch is engaged with the rotating end when the power is on, and the fixed end of the electromagnetic clutch is separated from the rotating end when the power is off, and the lead screw one 211 passes through the electromagnetic clutch device one 206 downwards. , Install bearing seat one 205, bearing seat one 205 is fixed on the lower support plate one 207, and lower support plate one 207 is fixed on the rear lower part of base frame 1.

The first screw nut 210 and the first screw 211 are connected by a self-locking screw pair.

Described leading screw one 211, right telescopic guide rail one 208, left telescopic guide rail one 203 are arranged parallel to each other along the vertical direction, described right telescopic guide rail one 208, left telescopic guide rail one 203 end connection step plate one 201 and the base frame 1 realize that during the lifting process of the step plate-201, the telescopic guide rail-208 on the right side and the telescopic guide rail-203 on the left side guide along the up-down direction.

The telescopic guide rail 1 208 on the right side includes a right elevating rod 2081 and a right fixing rod 2082, and the upper end of the right elevating rod 2081 fixes a right rail connecting plate 2083, and the right fixing rod 2082 is fixed on the right and rear parts of the base frame 1 , the right lifting rod 2081 is slidingly connected with the right fixing rod 2082, and the right guide rail connecting plate 2083 is fixed on the lower surface of the step plate one 201.

The output shaft of the motor 10 is fixed to the input shaft hole of the speed reducer 12, the output shaft of the speed reducer 12 is fixed to the bevel gear-13, the motor 10 and the speed reducer 12 are fixed on the motor fixing plate 11, and the motor fixing plate 11 is fixed on the base The left and front parts of frame 1, bevel gear 1 13 and bevel gear 2 14 mesh, bevel gear 2 14 is fixed on the top of rotating shaft 18, the bottom of rotating shaft 18 is fixed with synchronous pulley 5 15, and the upper and lower ends of rotating shaft 18 are respectively equipped with bearing seats Five 17, bearing seat six 19, bearing seat five 17 is fixed on the upper mounting plate 16 of the rotating shaft, bearing seat six 19 is installed on the lower mounting plate 20 of the rotating shaft, the upper mounting plate 16 of the rotating shaft, and the lower mounting plate 20 of the rotating shaft are fixed on the base frame 1 superior.

The five synchronous pulleys 15 are simultaneously connected with the first synchronous pulley 204 of the lifting step module one 2, the second synchronous pulley 304 of the second lifting step module 3, the third synchronous pulley 404 of the three lifting step module 4 through the synchronous belt 9, The synchronous pulley 4 504 of the lifting step module 4 5 forms a belt drive, and the above-mentioned synchronous pulleys are all located on the inside of the synchronous belt 9, and the adjacent two pulleys in the synchronous pulley 204 to the synchronous pulley 4 504 are all arranged There is a tensioning device 8, which is used for tensioning the timing belt 9, and realizes that the timing belt pulleys on both sides of the tensioning device fit the timing belt for reliable transmission.

The tensioning device 8 includes a tensioning wheel 801, a tensioning frame 802, a tensioning shaft 803, and a lock nut 804. The tensioning frame 802 is fixed on the right and lower parts of the base frame 1. The tension frame 802 is provided with an up and down through groove 8021 along the left and right direction, and the lower end of the tensioning shaft 803 is provided with a threaded rod, and the threaded rod passes through the through groove 8021 downwards to screw the lock nut 804, and the lock nut 804 is loosened to realize The threaded rod moves left and right along the through groove 8021 to adjust the position of the tensioning shaft 803 in the left and right direction, and tighten the locking nut 804 to realize that the shoulder on the upper part of the threaded rod and the nut clamp the tensioning frame 802, thereby fixing the tensioning shaft 803. The upper end of the tensioning shaft 803 is looped with a tensioning wheel 801, which fits with the synchronous belt 9, and the tensioning wheel 801 is positioned at the outside of the synchronous belt 9.

Step plate 1 201 of lift module 1 2, step plate 2 301 of lift module 2 3, step plate 3 401 of lift module 3 4, step plate 4 501 of lift module 4 5 the lower surface of the right rear end Fix hinged seat one 21, hinged seat two 22, hinged seat three 23, hinged seat four 24 respectively, hinged seat one 21 is hinged with rear mounting hole one 7051 of security device one 7 through column pin four 28, and hinged seat two 22 is fixed The middle part of column pin three 27, the left end of column pin three 27 is rotationally connected with the front mounting hole one 7011 of security device one 7, the rear side mounting hole two of column pin three 27 right ends is connected security device two 72 in rotation, and hinge seat three 23 is fixed The middle part of column pin two 26, column pin two 26 right-hand ends are connected with the front side installation hole two of safety device two 72, and column pin two 26 left ends are rotated and connected rear side installation hole three of security device three 71, and hinge seat four 24 passes column Pin one 25 is hinged to the front side installation hole three of security device three 71, and described security device one 7, security device two 72, and security device three 71 have the same structure.

The safety device-7 includes a front slide bar-701, an upper rack-702, a spur gear-703, an elastic pull wire-704, a rear slide bar-705, a gear rotating shaft-706, a lower rack-707, and a handwheel shaft- 708, hinged shaft one 709, upper fixed shaft one 710, lower fixed shaft one 711, swing bar one 712, magnetic steel one 713, Hall element 714, Hall element fixing frame 715, the front slide bar one 701 The front end is provided with a front mounting hole 7011, and the rear side of the rear sliding rod 705 is provided with a rear mounting hole 7051. The front sliding rod 701 is provided with a T-shaped slot along the front and rear direction, and the rear The slide bar one 705 is provided with a T-shaped bar adapted to the T-shaped groove, and the front slide bar one 701 is slidably connected with the rear slide bar one 705. The left part of one 709 is rotationally connected with the upper hinge hole 7021 provided at the front end of the upper rack one 702 and the lower hinge hole 7071 provided at the front end of the lower rack one 707. Rotate connection, the middle part of the handwheel shaft 708 is set as a cuboid, the distance from the upper surface 7081 to the lower surface of the cuboid is smaller than the distance from the front surface 7082 to the rear surface, and the horizontal edge of the cuboid is provided with a chamfer 7083, and the chamfer angle is 10-15 degree, the T-bar front end of described back slide bar one 705 is fixed to the gear rotating shaft one 706 that stretches out to the right, and the right end of gear rotating shaft one 706 rotates and installs cylindrical gear one 703, upper rack one 702, lower gear The gear teeth of bar one 707 all face cylindrical gear one 703, the upper surface of the cuboid set on the handwheel shaft one 708 fits with the upper fitting surface 7022 set on the front part of the upper rack one 702, and the cuboid set on the handwheel shaft one 708 The lower surface is bonded to the lower bonding surface 7072 provided on the front part of the lower rack one 707. The left side surface of the middle part of the upper rack one 702 is fixed to the upper fixed shaft one 710 protruding to the left, and the lower rack one The left side surface of the middle part of 707 is fixed to the lower fixed shaft 1 711 protruding to the left, and the upper fixed shaft 710 and the lower fixed shaft 711 are connected by elastic stay wire 1 704 .

The left end of the hand wheel shaft 708 is fixed with a hand wheel. When the upper surface of the cuboid set on the hand wheel shaft 708 is fitted with the upper fitting surface of the front part of the upper rack 702, the lower surface of the cuboid set on the hand wheel shaft 708 When fitting with the lower bonding surface provided on the front portion of the lower rack 1707, the elastic stay wire 1 704 draws the upper rack 1 702 and the lower rack 1 707 closer, and the upper rack 1 702, the lower rack 707 and the Cylindrical gear one 703 meshes, and now the front slide bar one 701 and the rear slide bar one 705 cannot slide. When the handwheel shaft one 708 rotates 90 degrees, the distance from the upper surface 7081 to the lower surface of the cuboid is smaller than that from the front surface 7082 to the rear. The distance between the surfaces, the upper and lower chamfers 7083 on the front side of the cuboid fit the upper fitting surface of the front part of the upper rack-702, and the lower fitting surface of the front part of the lower rack-707, so as to realize the upper tooth The position of bar one 702 and lower rack one 707 is stable in the step plate one 201 during the lifting process, the upper rack one 702 and the lower rack one 707 are kept away from the cuboid on the handwheel shaft one 708 in the up and down direction, and the elastic pull wire one 704 is Elongated, the upper rack one 702, the lower rack one 707 are not in contact with the cylindrical gear one 703, at this time the front slide bar one 701 and the rear slide bar one 705 can slide, and now the step plate one 201 of the lifting step module one 2 The height of the step plate 2 301 relative to the lifting step module 2 3 can be adjusted. During the adjustment process, the front slide bar 1 701 and the rear slide bar 1 705 slide against each other. After the adjustment is completed, turn the handwheel shaft 1 708 in the direction of 90 degrees. Backguy one 704 draws upper rack one 702 and lower rack one 707 closer, and upper rack one 702, lower rack one 707 mesh with cylindrical gear one 703. At this moment, front slide bar one 701 and rear slide bar one 705 cannot Sliding to realize the height adjustment of step plate 1 201 and lead screw 1 211 of step plate 2 301 or lead screw 2 of lifting step module 2 3, or the left support beam 1 202 and right support beam 1 209 are broken or damaged At this time, the safety device 1 makes the two adjacent lifting step modules restrain each other without changing the position, so as to prevent the construction personnel from falling.

After the said handwheel shaft one 708 passes through the front sliding rod one 701 to the right, the front end of the fixed swing rod one 712 is arranged horizontally along the front and rear direction, and the rear end of the fixed swing rod one 712 is fixed with a magnetic steel one 713. The magnetic steel one 713 is provided with a Hall element 714 at a suitable position, and the Hall element fixing frame 715 is fixed on the front slide bar one 701 , and the Hall element 714 is fixed on the Hall element fixing frame 715 .

When it is necessary to raise the step plate of a lifting step module, the hall element of the safety device hinged by the hinge seat does not detect the magnetic steel, that is, the handwheel shaft rotates to make the upper rack and the lower rack of the step plate When the racks are far away from each other, the control system can control the electromagnetic clutch device of the lifting step module to be energized, otherwise the safety device will be damaged.

Electromagnetic clutch, motor 10, safety device 1 7, safety device 2 72, Hall element of safety device 3 71 pass through the circuit Connect with the control system.

When it is necessary to transport the building materials to the height of the elevator, move the elevator to the construction site, use a cart or manually transport the building materials to the elevator, and then move the required position.

When it is necessary to transport building materials to a certain height, it is necessary to simultaneously raise the step plate 1 201 of the lifting step module 1 2, the step plate 2 301 of the lifting step module 2 3, the step plate 3 401 of the lifting step module 3 4, the lifting step The step plate 4 501 of the module 4 5 rotates the hand wheel shaft 1 708 by 90 degrees, the upper rack 702 and the lower rack 707 are moved away from the cuboid on the hand wheel shaft 708 in the up and down direction, and the elastic pull wire 704 is stretched, and the upper Rack 1 702, lower rack 1 707 do not contact with cylindrical gear 1 703, and now front slide bar 1 701 and rear slide bar 1 705 can slide, and rotate the hand wheel shaft 2 of safety device 2 72 and safety device 3 71 equally. Handwheel axis 3. At this time, the Hall elements of the above three security devices are far away from the magnetic steel, so that the control system can control the electromagnetic clutches of the elevator module 1 2, elevator module 2 3, elevator module 3 4, and elevator module 4 5. , the control system controls the rotation of the motor 10, the motor drives the bevel gear one 13 to rotate through the reducer, the bevel gear two 14 rotates, the synchronous belt pulley five 15 rotates, and the synchronous belt 9 drives the synchronous belt pulleys of each lifting module to rotate, the control system controls The power-on time of the electromagnetic clutch of each lifting step module makes the four lifting step plates rise to different heights, and then reversely rotates the hand wheel shaft of each security device so that the front sliding rod and the rear sliding rod of the above security device cannot slide, realizing the lifting step The mutual containment between the lifting step plates of the modules prevents the safety device from causing two adjacent lifting step modules to The step boards are held against each other without changing their positions, so as not to cause construction personnel to fall.

When it is necessary to lower the step plate 1 201 of the lifting step module 1 2, the step plate 2 301 of the lifting step module 2 3, the step plate 3 401 of the lifting step module 3 4, and the step plate 4 501 of the lifting step module 4 5 back to the initial position, turn the handwheel shaft of each safety device 90 degrees, the upper rack 1 702 and the lower rack 1 707 move away from each other in the vertical direction, the control system controls the motor 10 to rotate in reverse, and at the same time the control system controls the electromagnetic clutches of each lifting step module During the power-on time, the four lifting step plates are lowered to a predetermined height, and then the handwheel shafts of each safety device are reversely rotated so that the front slide bar and the rear slide bar of the above-mentioned safety device cannot slide.

When the building materials to be transported require two or three step boards at the same height, the lifting heights of the two or three step boards are also controlled according to the above method.

When it is necessary to avoid obstacles or stay away from dangerous objects, the rear ends of the two construction elevators are used to face each other, that is, the rear ends of the two construction elevators are attached to form a bridge to allow construction personnel to pass.

Claims (6)

1. A lift for building construction, comprising a base frame (1), a lift module one (2), a lift module two (3), a lift module three (4), a lift module four (5), a security device, synchronous belt (9), motor (10), bevel gear one (13), bevel gear two (14), synchronous pulley five (15), control system, it is characterized in that: described base frame (1) The front side of the front side is provided with a slope surface protruding towards the front and below, and the slope plate (6) is fixed on the slope surface, and the above-mentioned four lifting step modules are sequentially arranged on the base frame (1) from the back to the front. The four step-down modules have the same structure; The step-lifting module one (2) includes a step plate one (201), a synchronous pulley one (204), an electromagnetic clutch device one (206), a lead screw nut one (210), a lead screw one (211), a guide device, the screw nut one (210) is screwed on the lead screw one (211), the lower end of the left side support beam one (202) is fixed on the left side of the screw nut one (210), and the lead screw nut one (210) The left and right sides respectively fix the lower ends of the left and right support beams, and the upper ends of the left and right support beams fix the step plate one (201), and the described base frame (1) is provided with a step plate one (201) along the upper and lower The guide device of direction, the cylindrical shaft of lead screw one (211) bottom is equipped with electromagnetic clutch device one (206), and electromagnetic clutch device one comprises electromagnetic clutch one (2061), rotating disc (2062), electromagnetic clutch one (2061) The inner hole of the magnetic clutch one (211) is fixed on the lead screw one (211), and the shell of the electromagnetic clutch one (2061) is fixedly connected with the rotating disc (2062), and the inner hole of the rotating disc (2062) is rotationally connected with the leading screw one (211), and the rotating disc ( 2062) fixed synchronous pulley one (204); The output shaft of the motor (10) is fixed to the input shaft hole of the reducer (12), the output shaft of the reducer (12) is fixed to the bevel gear one (13), and the motor (10) and the reducer (12) are fixed on the base On the frame (1), the first bevel gear (13) meshes with the second bevel gear (14), the second bevel gear (14) is fixed on the upper part of the rotating shaft (18), and the fifth synchronous pulley (15) is fixed on the lower part of the rotating shaft (18) , the base frame (1) is provided with a rotating support of the rotating shaft (18), and the five synchronous pulleys (15) form a belt drive with the synchronous pulleys in the above four lifting step modules through the synchronous belt (9) at the same time; A safety device is hinged between each step plate of the above four lifting step modules. The safety device includes two slide bars that slide against each other. The sliding positions of the two slide bars can be adjusted and fixed. The direction in which the two slide bars move away from each other The ends of each are hinged to the adjacent step plates; The electromagnetic clutches and motors (10) of the above-mentioned four lifting and lowering modules are connected with the control system through lines; Described safety device comprises safety device one (7), safety device two (72), safety device three (71), step plate one (201) of lifting step module one (2), step plate one (201) of lifting step module two (3) The lower surface of the right rear end of the step plate two (301), the step plate three (401) of the lifting step module three (4), the step plate four (501) of the lifting step module four (5) respectively fix the hinge seat one (21 ), hinged seat two (22), hinged seat three (23), hinged seat four (24), hinged seat one (21) passes column pin four (28) and safety device one (7) rear side installation hole one ( 7051) hinged, hinged seat two (22) fix the middle part of column pin three (27), column pin three (27) left end and the front side mounting hole one (7011) of security device one (7) are rotationally connected, column pin three ( 27) The right end is rotated to connect the rear mounting hole two of the safety device two (72), the hinge seat three (23) fixes the middle part of the column pin two (26), and the front of the column pin two (26) right ends and the security device two (72) Side mounting hole 2 is rotationally connected, and the left end of column pin 2 (26) is rotatably connected to rear side mounting hole 3 of safety device 3 (71), and hinge seat 4 (24) is hinged to safety device 3 (71) through column pin 1 (25). Mounting hole three on the front side, the structure of the described security device one (7), security device two (72), and security device three (71) is the same; The safety device one (7) includes a front sliding rod one (701), an upper rack one (702), a spur gear one (703), an elastic pull wire one (704), a rear sliding rod one (705), a gear shaft One (706), lower rack one (707), hand wheel shaft one (708), hinged shaft one (709), upper fixed shaft one (710), lower fixed shaft one (711), the described front slide bar one The front end of (701) is provided with front mounting hole one (7011), and the rear side of described rear sliding bar one (705) is provided with rear side mounting hole one (7051), and described front sliding bar one (701) T-shaped slots along the front and rear directions are arranged on the top, and T-shaped bars adapted to the T-shaped slots are arranged on the rear sliding rod one (705), and the front sliding rod one (701) is slidably connected with the rear sliding rod one (705). The front part of the front slide bar one (701) fixes the right part of the hinge shaft one (709), and the left part of the hinge shaft one (709) is rotationally connected with the front ends of the upper rack one (702) and the lower rack one (707), The right end of the hand wheel shaft one (708) is rotationally connected with the front slide bar one (701), and the middle part of the hand wheel shaft one (708) is arranged as a rectangular parallelepiped, and the distance from the upper surface to the lower surface of the rectangular parallelepiped is smaller than the distance from the front surface (7082) to the lower surface. The distance from the rear surface, the horizontal edge of the cuboid is provided with chamfering (7083), the T-shaped bar front end of the described rear slide bar one (705) is fixed to the gear shaft one (706) protruding to the right, and the gear shaft one (706) The right end of 706) rotates and installs cylindrical gear one (703), and the gear teeth of upper rack one (702) and lower rack one (707) are all towards cylindrical gear one (703), and the cuboid set on the hand wheel shaft one (708) The upper surface fits the upper fitting surface of the front part of the upper rack one (702), and the lower surface of the cuboid set on the handwheel shaft one (708) fits the lower fitting of the front part of the lower rack one (707) Surface fit, the left side surface of the middle part of the upper rack one (702) is fixed to the upper fixed shaft one (710) protruding to the left, and the left side surface of the middle part of the lower rack one (707) is fixed to protrude to the left The lower fixed shaft one (711), the upper fixed shaft one (710) and the lower fixed shaft one (711) are connected by elastic stay wire one (704); The left end of handwheel shaft one (708) is fixed with handwheel, when the cuboid upper surface that is provided with on handwheel shaft one (708) and the last fitting surface that the setting of upper rack one (702) front portion fits, handwheel shaft one ( 708) when the cuboid lower surface provided with the lower fitting surface of the setting of the lower rack one (707) front portion is fitted, the upper rack one (702), the lower rack one (707) and the spur gear one (703) ) meshing, when the rotating handwheel shaft one (708) rotates 90 degrees, the upper rack one (702) and the lower rack one (707) are away from the cuboid up and down on the handwheel shaft one (708), and the upper rack one ( 702), the lower rack one (707) does not contact with the cylindrical gear one (703); The safety device one (7) also includes a swing lever one (712), a magnetic steel one (713), a Hall element (714), a Hall element fixing frame (715), and the hand wheel shaft one (708) After passing through the front slide bar one (701) to the right, fix the front end of the swing bar one (712), the swing bar one (712) is horizontally arranged along the front and back direction, and the rear end of the fixed swing bar one (712) is fixed with a magnetic steel one ( 713), the position corresponding to the magnetic steel one (713) is provided with a Hall element (714), the Hall element fixing frame (715) is fixed on the front slide bar one (701), and the Hall element fixing frame (715) Fix the Hall element (714), the Hall elements of security device one (7), security device two (72), and security device three (71) are connected with the control system through lines, and the Hall element (714) is connected to the magnetic When the position of steel one (713) is corresponding, the electromagnetic clutch of the connected lifting step module of control system control safety device one (7) cannot be energized. 2. The elevator for building construction according to claim 1, characterized in that: the above-mentioned five synchronous pulleys are all positioned at the inner side of the synchronous belt (9), and synchronous pulley one (204) to synchronous pulley four (504) Tensioning devices (8) are arranged between adjacent two synchronous pulleys for tensioning the synchronous belt (9). 3. The elevator for building construction according to claim 2, characterized in that: said tensioning device (8) comprises, a tensioning wheel (801), a tensioning frame (802), a tensioning shaft (803) . Lock nut (804), the tension frame (802) is fixed on the base frame (1), the tension frame (802) is provided with up and down through grooves (8021) along the left and right direction, tension The lower end of the tension shaft (803) is provided with a threaded rod, and the threaded rod passes downward through the through groove (8021) to screw the lock nut (804), so as to realize the left and right position adjustment of the tension shaft (803), and tighten the lock nut ( 804), in order to realize that the shaft shoulder on the threaded rod top and the nut clamp the tension frame (802), the looper at the upper end of the tension shaft (803) has a tension pulley (801), and the tension pulley (801) and the synchronous belt (9 ) fit, and the tension pulley (801) is located on the outside of the timing belt (9). 4. The elevator for building construction according to any one of claims 1-3, characterized in that: said lead screw nut one (210) and lead screw one (211) are connected by a self-locking screw pair. 5. The elevator for building construction according to any one of claims 1-3, characterized in that: said guiding device comprises a right side telescopic guide rail one (208), a left side telescopic guide rail one (203), said The right telescopic guide rail one (208) and the left telescopic guide rail one (203) have the same structure, and the right telescopic guide rail one (208) includes a right elevating rod (2081), a right fixed rod (2082), and a right elevating rod (2082). The upper end of the rod (2081) fixes the right guide rail connecting plate (2083), the right fixed rod (2082) is fixed on the base frame (1), and the right elevating rod (2081) is slidingly connected with the right fixed rod (2082) , the right rail connecting plate (2083) is fixed on the lower side surface of the step plate one (201). 6. The elevator for building construction according to any one of claims 1-3, characterized in that: the structure of the rotating support provided with the rotating shaft (18) on the base frame (1) is: the rotating shaft (18) Bearing seat five (17) and bearing seat six (19) are respectively installed on the upper and lower ends, bearing seat five (17) is fixed on the mounting plate (16) on the rotating shaft, and bearing seat six (19) is installed on the rotating shaft lower mounting plate (20 ), the upper mounting plate (16) of the rotating shaft and the lower mounting plate (20) of the rotating shaft are fixed on the base frame (1).

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