Automatic plastering machine for building
Technical Field
The invention relates to the field of green construction engineering, in particular to an automatic plastering machine for buildings.
Background
The wall plastering machine is also called a plastering machine, namely a machine capable of automatically plastering a wall surface, has the advantages of strong practicability, convenient carrying, simple operation, good engineering quality and the like, can save the processes of dotting, strip drawing and the like in the wall plastering construction, and can be used by workers without any wall plastering experience and technology; at present, common automatic wall plastering machines are all composed of a vertical guide rod arranged on a base, a plastering box movably arranged on the vertical guide rod, a traction device for driving the plastering box to move up and down along the vertical guide rod, and the like. When the wall plastering machine works, the plastering plate on the plastering box is attached to the wall surface, and the automatic plastering process of the wall surface can be realized through the plastering plate along with the lifting movement of the plastering box.
However, in the actual use process of the wall plastering machine, mortar is accumulated in the plastering box through manual feeding, the plastering plate of the plastering box coats the mortar on the wall surface, and the mortar is continuously discharged, redundant mortar which is not adhered to the wall surface falls to the ground along two sides of the plastering plate, the mortar falling to the ground is mixed with dregs and cannot be reused, so that a large amount of raw materials are wasted, meanwhile, the waste mortar is dried in a short time, and a large amount of solid waste is formed, which is not in line with the current aim of green environmental protection construction.
Disclosure of Invention
The invention aims to provide an automatic plastering machine for buildings, which solves the problem that a large amount of mortar drips on two sides of a plastering plate, reduces the using amount of mortar when the wall is plastered indoors, and realizes green and environment-friendly construction.
The invention is realized by the following technical scheme:
an automatic plastering machine for building comprises a rectangular support frame, wherein a vertical column is vertically arranged in the middle of the support frame, a base is sleeved on the vertical column, a plastering box is connected on the side wall of the base, conveying pipes are arranged on the side walls at two ends of the base, one end of each conveying pipe penetrates through the plastering box and is communicated with the inside of the plastering box, the other end of each conveying pipe is communicated with the discharge end of a pump, the upper end of the plastering box is open, poking plates are hinged on two opposite inner side walls of the plastering box through torsional springs, a discharge hole right facing the bottom of each poking plate is formed in the lower section of the inner side wall of the plastering box, a rotating shaft and a central shaft are respectively and rotatably arranged in the plastering box, the rotating shaft is arranged above the central shaft, a plurality of first cams are arranged on the central shaft at intervals, a plurality of second cams are arranged on the rotating shaft at intervals, the discharge port and the rotating shaft are respectively positioned at two sides of the material stirring plate, an adjusting cavity is formed in the base, a through hole communicated with the adjusting cavity is formed in the upper surface and the lower surface of the base, the stand column movably penetrates through the two through holes and the adjusting cavity, a toothed belt is arranged on the side wall of the stand column, and a driving assembly matched with the toothed belt is arranged in the adjusting cavity; the bottom surface of the inner portion of the plastering box is provided with an arc-shaped sliding groove, the poking plate is perpendicular to the bottom surface of the plastering box and is in contact with the middle of the inner wall of the sliding groove in an initial state, the distance between the rotating shaft and the poking plate is H, the distance between the central shaft and the poking plate is S, H & lt S is met, and when the plastering box works, the first cam and the second cam alternately poke the poking plate. In the prior art, when plastering treatment is performed on an inner wall of a building, a common automatic plastering machine is fed manually, namely mortar is continuously injected into the plastering machine in the process of moving a plastering plate upwards to ensure the continuity of a plastering process, but mortar which is not attached to the wall surface directly overflows along the side wall of the plastering plate during manual feeding, finally mortar accumulation is formed on the ground, the accumulated mortar is easily polluted and cannot be reused, and the using amount of the mortar is increased; therefore, the applicant designs a novel plastering machine, which can control the flow of mortar flowing out of a discharge port in unit time, avoid the excessive overflow of mortar in the ascending or descending process of the plastering machine, and reduce the use amount of the mortar while ensuring the normal operation of a plastering process.
When the mortar plastering machine is used specifically, the driving assembly can drive the base to do linear reciprocating motion in the vertical direction along the upright column, mortar is pumped into the material conveying pipe through the pump and conveyed into the plastering box along the material conveying pipe, the material poking plate is perpendicular to the bottom surface inside the plastering box in an initial state, the driving assembly starts to drive the central shaft to rotate, the central shaft and the rotating shaft are linked through the meshing of the driving gear and the driven gear, the outer diameter of the driving gear is smaller than that of the driven gear, the distance between the rotating shaft and the material poking plate is larger than that between the central shaft and the material poking plate, so that the contact sequence of the first cam and the second cam with the material poking plate is different, the mortar accumulated in the plastering box is in a cuboid shape in the initial state, the lower section of the material poking plate can be driven to move towards the direction close to the material outlet after the first cam is contacted with the side, the movement of the plastering box in the vertical direction is synchronous with the horizontal pushing of mortar, and along with the continuous rotation of the rotating shaft and the central shaft, the first cam is separated from the contact with the material shifting plate, the material shifting plate gradually starts to reset under the deformation restoring action of the torsion spring, the second cam rotates to be in contact with the upper section of the material shifting plate so as to drive the material shifting plate to accelerate to reset, namely the material shifting plate returns to the vertical state again, and when the first cam rotates to be in contact with the lower section of the material shifting plate again, the material shifting plate starts to repeat the actions until the plastering process is finished; it should be further noted that the mortar accumulated in the plastering box moves down the inner wall of the plastering box under the action of the self-gravity, then slowly moves outwards along the discharge port, only when the shifting plate rotates in situ, the mortar can be pushed to quickly move outwards along the discharge port, the discharging speed of the mortar is ensured to be matched with the upwards moving speed of the base and the plastering box, namely, aiming at a certain horizontal point position on the wall surface, the discharge amount of the mortar is relatively fixed, so that the mortar can be effectively prevented from overflowing along the two ends of the discharge port in the plastering process, compared with the traditional plastering equipment, the material conveying pipe has no manual feeding, ensures that the plastering box has enough mortar amount, ensures that the total weight of the plastering box and the base can not be obviously changed, maintains the moving stability of the plastering box, when the plastering box moves to the middle-upper section of the wall surface, the plastering process can be prevented from being unavailable due to insufficient mortar quantity. Wherein, it has curved spout to open in the bottom surface of plastering case, and the lower extreme tip and the spout bottom contact of switch-board, when its pin joint of switch-board was taken place to rotate promptly, the spout can provide the switch-board and take place the space of rotatory orbit to the switch-board can scrape the mortar that falls into in the spout clean when rotatory each time, with the subsequent normal removal of assurance switch-board.
The bottom of the shifting plate is provided with a shifting block, the longitudinal section of the shifting block is trapezoidal, and the lower bottom surface of the shifting block is arc-shaped and matched with the sliding groove. Furthermore, the lower end of the shifting plate is provided with the shifting block made of wear-resistant materials, the shifting block replaces the shifting plate to be directly contacted with the bottom of the sliding groove, mortar leakage caused by excessive wear of the shifting plate can be avoided, the trapezoidal shifting block can increase the shifting effect on mortar, especially, the inclined planes of the two sides of the shifting block can avoid mortar adhesion, and partial mortar is prevented from being dried and solidified on the shifting block.
The driving component comprises two main motors, two auxiliary motors and a driving gear matched with the toothed belt, the output ends of the two auxiliary motors are respectively connected with the end faces of the driving gear, the output end of each main motor movably penetrates through the side wall of the adjusting cavity and then extends into the plastering box, and a planetary gear is arranged on the extending section of the output end of each main motor, two conical gears meshed with the planet gears are arranged on the central shaft, two support plates are oppositely arranged in the adjusting cavity, two rows of hooks are arranged on the side wall of the upright post and are respectively positioned on two sides of the toothed belt, a U-shaped locking plate is arranged between the two supporting plates, two ends of the locking plate are respectively provided with a pin post, the two pin columns respectively and movably penetrate through the two supporting plates and extend outwards, and the extending sections of the pin columns are provided with adjusting gears; under the initial state, the U-shaped opening of the locking plate is just opposite to the toothed belt, and the hook can pass through the U-shaped area of the locking plate. Furthermore, the driving assembly needs to provide power for the movement of the base in the vertical direction and the rotation of the central shaft and the rotating shaft, and the movement in the two directions needs to be performed synchronously; wherein, when the auxiliary motor is in failure or is in unexpected shutdown, the engagement between the driving gear and the rack is out of control, the base and the plastering box can directly fall down, thereby causing safety accidents, in this respect, the applicant has provided two support plates in the adjustment chamber, and between them a U-shaped locking plate, when the rack is normally matched with the driving gear, the direction of the U-shaped opening of the locking plate is over against the rack, at the moment, two rows of hooks positioned at two sides of the upright post can smoothly pass through the U-shaped area of the locking plate, when the engagement between the rack and the driving gear is out of control, the adjusting gear connected with external driving equipment can rotate rapidly to drive the locking plate to rotate, make the U-shaped opening of lock plate back to the rack, the lock plate is just being located two tracks that the couple moved down this moment, and the couple articulates rapidly on the lock plate to prevent that the base from continuing to move down, and then reduce the incidence of incident.
The number of lock plate is a plurality of and from top to bottom interval distribution, drive gear is located between two lock plates of below, and rotates on the lateral wall of backup pad and is equipped with a plurality of transition gears, is located same backup pad and two adjacent adjusting gear all with a transition gear meshing, is equipped with the drive shaft on any transition gear's terminal surface, and the drive shaft is connected with micromotor's output. Further, the locking board interval sets to a plurality ofly for when the unexpected tenesmus of base, two lists couples can take place to contact with a plurality of locking boards simultaneously, and the probability of increase locking board interception couple ensures base and plastering case simultaneously and is being converted into the stability of quiescent condition back locking board and couple by the tenesmus state.
The adjustable support is characterized in that two guide holes penetrating through the adjusting cavity are formed in the base, two guide columns are vertically arranged on the support frame, the guide columns penetrate through the guide holes in a movable mode, guide grooves with the same length as the guide columns are formed in the side walls of the guide columns, the transverse cross sections of the guide grooves are T-shaped, and guide blocks matched with the guide grooves are fixed in the adjusting cavity. Furthermore, the two guide posts can increase the stability of the base moving on the support frame, and prevent the base from generating left and right swing amplitude when moving, so as to ensure the effect of coating mortar on the wall surface.
The bottom of the support frame is provided with a plurality of universal wheels. As the preferred, the support frame bottom sets up a plurality of universal wheels, can improve the removal flexibility of support frame, makes things convenient for constructor to shift the construction point.
All be equipped with two splint on the both sides wall of plastering case, a tip of splint flushes with the plastering face of plastering case, constitutes a V type recovery chamber after the side of two splint is articulated each other, is equipped with the buckled plate on another tip of splint, and the buckled plate is with the tip closure in V type recovery chamber. Furthermore, when the plastering box is contacted with the wall surface, part of mortar can overflow from the two ends of the discharge port and cannot act on the wall surface, therefore, the applicant sets two clamping plates on the two sides of the plastering box, the two clamping plates are hinged with each other to form a V-shaped recovery cavity, one end of the recovery cavity is flush with the plastering surface of the plastering box, and the other end of the recovery cavity is sealed by a corrugated plate; and because the buckled plate can produce certain deformation for the volume of retrieving the chamber is variable, when the mortar volume of retrieving increases promptly, the function of retrieving the chamber can not become invalid, especially when plastering the wall to the corner, one of them retrieves the chamber and can fold into after the flat board with another wall contact through the extrusion, and remaining recovery chamber then normally carries out its recovery function, avoids leaving too big clearance between two adjacent walls, avoids the manual work to carry out the secondary and mends grey operation.
And organ covers are respectively fixed on two opposite side walls of the plastering box and are connected with the side wall of the material stirring plate back to the discharge hole. Furthermore, organ covers are fixed on two opposite side walls of the plastering box respectively, and the lower end of the poking plate is in contact with the bottom of the sliding groove, so that low-grade sealing isolation is realized on two sides of the poking plate, and mortar is prevented from leaking in the plastering box.
The upper end of the plastering surface of the plastering box is provided with an overflow port, the discharge port is positioned at the lower end of the plastering surface of the plastering box, the lower end of the plastering surface of the plastering box is also provided with an expansion port communicated with the discharge port, and the width of the expansion port is gradually increased along a horizontal line towards the direction far away from the stirring plate. Furthermore, in the implementation of the technical scheme, the mortar amount in the plastering box is kept constant, when the stirring plate extrudes mortar, the liquid level of the mortar can fluctuate, and in order to prevent the mortar from overflowing from the top of the plastering box, the upper section of the plastering surface of the plastering box is provided with the overflow hole, so that when the liquid level of the mortar fluctuates, redundant mortar can directly move between the wall surface and the plastering surface from the overflow hole; the lower end of the plastering surface of the plastering box is provided with an expansion port communicated with the discharge port, and the width of the expansion port is gradually increased along the horizontal line towards the direction far away from the kick-out plate, so that the flow speed of the mortar pushed in the plastering box before being attached to the wall surface is reduced, the excessive mortar flowing out in unit time is avoided, and the mortar overflowing amount is reduced to the greatest extent.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the mortar flow rate flowing out of the discharge port in unit time can be controlled, the excessive mortar overflow amount in the ascending or descending process of the plastering machine is avoided, and the mortar use amount is reduced while the normal operation of the plastering process is ensured;
2. according to the invention, two support plates are arranged in the adjusting cavity, and a U-shaped locking plate is arranged between the two support plates, when a rack is normally matched with a driving gear, the direction of a U-shaped opening of the locking plate is over against the rack, at the moment, two columns of hooks positioned on two sides of an upright post can smoothly pass through the U-shaped area of the locking plate, and when the engagement of the rack and the driving gear is out of control, an adjusting gear connected with external driving equipment can rapidly rotate to drive the locking plate to rotate, so that the U-shaped opening of the locking plate is back to the rack, at the moment, the locking plate is positioned on a track where the two columns of hooks move downwards, and the hooks are rapidly hung on the locking plate to prevent a base from continuously moving downwards, thereby;
3. in the invention, constructors can regularly arrange the recovery cavities so as to conveniently reuse the recovered mortar; and because the buckled plate can produce certain deformation for the volume of retrieving the chamber is variable, when the mortar volume of retrieving increases promptly, the function of retrieving the chamber can not become invalid, especially when plastering the wall to the corner, one of them retrieves the chamber and can fold into after the flat board with another wall contact through the extrusion, and remaining recovery chamber then normally carries out its recovery function, avoids leaving too big clearance between two adjacent walls, avoids the manual work to carry out the secondary and mends grey operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a plastering box;
FIG. 3 is a partial cross-sectional view of the plastering box;
FIG. 4 is a schematic structural view of a base;
fig. 5 is a matching view of the support plate and the locking plate.
Reference numbers and corresponding part names in the drawings:
1-support frame, 2-upright post, 3-toothed belt, 4-press plate, 5-guide post, 6-guide groove, 7-plastering box, 8-conveying pipe, 9-base, 10-universal wheel, 11-discharge port, 12-chute, 13-material-stirring plate, 14-rotating shaft, 15-clamping plate, 16-corrugated plate, 17-central shaft, 18-conical gear, 19-first cam, 20-through hole, 21-driven gear, 22-guide hole, 23-driving gear, 24-second cam, 25-overflow port, 26-torsion spring, 27-organ cover, 28-expanding port, 29-stirring block, 30-regulating cavity, 31-main motor, 32-auxiliary motor and 33-hook, 34-driving gear, 35-supporting plate, 36-pin, 37-locking plate, 38-adjusting gear, 39-transition gear, 40-driving shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1 to 5, the present embodiment includes a rectangular support frame 1, a vertical column 2 is vertically disposed in the middle of the support frame 1, a base 9 is sleeved on the vertical column 2, a plastering box 7 is connected to a side wall of the base 9, a material conveying pipe 8 is disposed on a side wall of each end of the base 9, one end of the material conveying pipe 8 penetrates through the plastering box 7 and is communicated with the inside, the other end of the material conveying pipe 8 is communicated with a discharge end of a pump, an upper end of the plastering box 7 is open, a material shifting plate 13 is hinged to two opposite inner side walls of the plastering box 7 through a torsion spring 26, a material outlet 11 is opened at a lower section of the inner side wall of the plastering box 7 and is opposite to the bottom of the material shifting plate 13, a rotating shaft 14 and a central shaft 17 are respectively rotatably disposed in the plastering box 7, the rotating shaft 14 is disposed above the central shaft 17, a plurality of first cams 19, a driving gear 23 is fixed on the rotating shaft 14, a driven gear 21 matched with the driving gear 23 is fixed on the central shaft 17, the discharge port 11 and the rotating shaft 14 are respectively positioned at two sides of the material poking plate 13, an adjusting cavity 30 is formed inside the base 9, a through hole 20 communicated with the adjusting cavity 30 is formed in the upper surface and the lower surface of the base 9, the upright post 2 movably penetrates through the two through holes 20 and the adjusting cavity 30, a toothed belt 3 is arranged on the side wall of the upright post 2, and a driving assembly matched with the toothed belt 3 is arranged in the adjusting cavity 30; an arc-shaped sliding groove 12 is formed in the bottom surface inside the plastering box 7, in an initial state, the material shifting plate 13 is perpendicular to the bottom surface of the plastering box 7 and is in contact with the middle of the inner wall of the sliding groove 12, the distance between the rotating shaft 14 and the material shifting plate 13 is H, the distance between the central shaft 17 and the material shifting plate 13 is S, H & lt S is met, and when the plastering box works, the first cam 19 and the second cam 24 alternately shift the material shifting plate 13.
The driving assembly can drive the base 9 to perform linear reciprocating motion in the vertical direction along the upright column 2, mortar is pumped into the delivery pipe 8 through a pump and is conveyed into the plastering box 7 along the delivery pipe 8, in an initial state, the material poking plate 13 is perpendicular to the inner bottom surface of the plastering box 7, the driving assembly starts to drive the central shaft 17 to rotate, the central shaft 17 and the rotating shaft 14 are linked through the meshing of the driving gear 23 and the driven gear 21, the outer diameter of the driving gear 23 is smaller than that of the driven gear 21, the distance between the rotating shaft 14 and the material poking plate 13 is larger than that between the central shaft 17 and the material poking plate 13, so that the contact sequence of the first cam 19 and the second cam 24 with the material poking plate 13 is different, the mortar accumulated in the plastering box 7 is cuboid in the initial state, and after the first cam 19 is firstly contacted with the side wall of the material poking plate 13, the lower section of the material poking, that is, the material-shifting plate 13 can drive the mortar close to the bottom of the plastering box 7 to move towards the material outlet 11, the movement of the plastering box 7 in the vertical direction is synchronous with the horizontal pushing of the mortar, and along with the continuous rotation of the rotating shaft 14 and the central shaft 17, the first cam 19 is separated from the contact with the material-shifting plate 13, simultaneously, the material-shifting plate 13 gradually starts to reset under the deformation restoring action of the torsion spring 26, and the second cam 24 rotates to contact with the upper section of the material-shifting plate 13 to drive the material-shifting plate 13 to reset in an accelerated way, that is, the material-shifting plate 13 returns to the vertical state again, when the first cam 19 rotates to contact with the lower section of the material-shifting plate 13 again, the material-shifting plate 13 starts to repeat the above actions; it should be further noted that the mortar piled in the plastering box 7 moves down the inner wall of the plastering box 7 under its own weight, then slowly moves outwards along the discharge port 11, only when the material-poking plate 13 rotates in place, the material-poking plate can push the mortar to move quickly along the discharge port 11, ensure that the discharging speed of the mortar is matched with the upward moving speed of the base 9 and the plastering box 7, namely, aiming at a certain horizontal point position on the wall surface, the discharge amount of the mortar is relatively fixed, so that the mortar can be effectively prevented from overflowing along two ends of the discharge port 11 in a large amount during plastering, compared with the traditional plastering equipment, the material conveying pipe 8 has no manual feeding, ensures that the plastering box 7 has enough mortar amount, ensures that the total weight of the plastering box 7 and the base 9 can not be obviously changed, maintains the moving stability of the plastering box 7, when the plastering box 7 moves to the middle upper section of the wall surface, the phenomenon that the plastering process cannot be carried out due to insufficient mortar amount can be avoided. Wherein, open at the bottom surface of plastering case 7 has curved spout 12, the lower extreme tip of switch-plate 13 and spout 12 bottom contact, when switch-plate 13 was taken place to rotate around its pin joint promptly, spout 12 can provide the space that switch-plate 13 took place the rotation orbit to switch-plate 13 can scrape the mortar that falls into in spout 12 clean when rotatory each time, with the subsequent normal removal of assurance switch-plate 13.
In the embodiment, the lower end of the material shifting plate 13 is provided with the shifting block 29 made of wear-resistant materials, the shifting block 29 replaces the material shifting plate 13 to directly contact with the bottom of the sliding groove 12, mortar leakage caused by excessive wear of the material shifting plate 13 can be avoided, the trapezoidal shifting block 29 can increase the mortar shifting effect, especially, the inclined planes at the two waists of the shifting block 29 can avoid mortar adhesion, and partial mortar is prevented from being dried and bonded on the shifting block 29.
Wherein, the top of plastering case 7 is open, this embodiment is provided with clamp plate 4 at the open end of plastering case 7, the one end of clamp plate 4 is articulated with plastering case 7, and be equipped with the spring in plastering case 7, and the spring local salient is in plastering case 7 upper surface, make when plastering case 7 removes to the ceiling department, clamp plate 4 at first contacts with the ceiling, utilize the deformability of spring, can cushion between plastering case 7 and the ceiling, avoid both to carry out rigid collision, and after plastering case 7 moved down, clamp plate 4 resumes to initial condition under the elasticity recovery of spring, with the rotation circumstances of mortar content, pivot 14 or center pin 17 in making things convenient for constructor real-time observation plastering case 7.
Example 2
As shown in fig. 1 to 5, in this embodiment, based on embodiment 1, the driving assembly includes two main motors 31 and two auxiliary motors 32, the two auxiliary motors 32 are disposed oppositely, and further includes a driving gear 34 engaged with the toothed belt 3, output ends of the two auxiliary motors 32 are respectively connected with end surfaces of the driving gear 34, an output end of each main motor 31 movably penetrates through a sidewall of the adjusting cavity 30 and extends into the plastering box 7, a planetary gear is disposed on an extending section of an output end of each main motor 31, two bevel gears 18 engaged with the planetary gear are disposed on the central shaft 17, two supporting plates 35 are disposed in the adjusting cavity 30 in an opposite direction, two rows of hooks 33 are disposed on a sidewall of the upright column 2, and the two rows of hooks 33 are respectively located at two sides of the toothed belt 3, a U-shaped locking plate 37 is disposed between the two supporting plates 35, two ends of the locking plate 37 are respectively provided with a pin 36, the two pins 36 respectively penetrate through the two supporting plates 35 and extend outwards, and an extending section of each pin 36 is provided with an adjusting gear 38; in the initial state, the U-shaped opening of the locking plate 37 faces the toothed belt 3, and the hook 33 can pass through the U-shaped area of the locking plate 37. The driving assembly needs to provide power for the movement of the base 9 in the vertical direction and the rotation of the central shaft 17 and the rotating shaft 14, and the movement in the two directions needs to be performed synchronously, in the technical scheme, two main motors 31 and two auxiliary motors 32 are arranged in the adjusting cavity 30, the main motors 31 are used for the rotation of the central shaft 17 and the rotating shaft 14, the auxiliary motors 32 are used for the movement of the base 9 in the vertical direction, wherein the two auxiliary motors 32 are oppositely arranged, the output ends of the two auxiliary motors are connected with the same driving gear 34, so that the base 9 and the plastering box 7 can move stably under a load condition, the output end of the main motor 31 movably penetrates through the base 9 and then enters the plastering box 7, and the rotation of the rotating shaft 14 is realized through the matching of the planetary gear and the bevel gear 18; wherein, when the auxiliary motor 32 is failed or is shut down accidentally, the engagement between the driving gear 34 and the rack bar is out of control, the base 9 and the plastering box 7 can directly drop, and further cause safety accidents, therefore, the applicant is provided with two support plates 35 in the adjusting cavity 30, and a U-shaped locking plate 37 is arranged between the two support plates 35, when the rack bar is normally matched with the driving gear 34, the U-shaped opening direction of the locking plate 37 is over against the rack bar, at the moment, two columns of hooks 33 positioned at two sides of the upright post 2 can smoothly pass through the U-shaped area of the locking plate 37, when the engagement between the rack bar and the driving gear 34 is out of control, the adjusting gear 38 connected with an external driving device can rapidly rotate to drive the locking plate 37 to rotate, so that the U-shaped opening of the locking plate 37 is back against the rack bar, at the moment, the locking plate 37 is rightly positioned on the downward moving tracks of the two columns, so as to prevent the base 9 from moving downwards continuously and further reduce the occurrence rate of safety accidents.
In this embodiment, the number of lock plate 37 is a plurality of and from top to bottom interval distribution, drive gear 34 is located between two lock plates 37 of below, and rotates on the lateral wall of backup pad 35 and is equipped with a plurality of transition gears 39, is located same backup pad 35 and two adjacent adjusting gear 38 all mesh with a transition gear 39, is equipped with drive shaft 40 on any transition gear 39's terminal surface, and drive shaft 40 is connected with the output of micromotor. The interval of the locking plate 37 is set to be a plurality of, so that when the base 9 accidentally drops, two columns of hooks 33 can be contacted with a plurality of locking plates 37 at the same time, the probability that the hooks 33 are intercepted by the locking plates 37 is increased, and the stability of the locking plates 37 and the hooks 33 after the base 9 and the plastering box 7 are converted into a static state from a dropping state is ensured.
Example 3
As shown in fig. 1 to 5, in this embodiment, on the basis of embodiment 1, two guide holes 22 penetrating through the adjusting cavity 30 are formed in the base 9, two guide posts 5 are vertically arranged on the support frame 1, the guide posts 5 movably penetrate through the guide holes 22, guide grooves 6 having the same length as the guide posts 5 are formed in the side walls of the guide posts 5, the transverse section of each guide groove 6 is T-shaped, and guide blocks matched with the guide grooves 6 are fixed in the adjusting cavity 30. The two guide posts 5 can increase the stability of the movement of the base 9 on the support frame 1, and prevent the base 9 from generating left and right swing amplitude when moving, so as to ensure the effect of coating mortar on the wall surface.
Preferably, a plurality of universal wheels 10 are arranged at the bottom of the support frame 1, so that the moving flexibility of the support frame 1 can be improved, and convenience is brought to constructors to transfer construction points.
Example 4
As shown in fig. 1 to 5, in this embodiment, on the basis of embodiment 1, two clamping plates 15 are respectively disposed on two side walls of the plastering box 7, one end portion of each clamping plate 15 is flush with the plastering surface of the plastering box 7, the side edges of the two clamping plates 15 are hinged to each other to form a V-shaped recycling cavity, a corrugated plate 16 is disposed on the other end portion of each clamping plate 15, and the end portion of the V-shaped recycling cavity is closed by the corrugated plate 16. When the plastering box 7 is contacted with the wall surface, part of mortar can overflow from the two ends of the discharge port 11 and cannot act on the wall surface, for this reason, the applicant arranges two clamping plates 15 at the two sides of the plastering box 7, the two clamping plates 15 are mutually hinged to form a V-shaped recovery cavity, one end of the recovery cavity is flush with the plastering surface of the plastering box 7, the other end of the recovery cavity is sealed by a corrugated plate 16, when in use, the mortar overflowing from the two ends of the discharge port 11 can move into the recovery cavity by mutual extrusion, and constructors can regularly arrange the recovery cavity so as to facilitate the reuse of the recovered mortar; and because buckled plate 16 can produce certain deformation for the volume of retrieving the chamber is variable, when the mortar volume of retrieving increases promptly, retrieves the function in chamber and can not become invalid, especially when plastering the operation to the wall of corner, one of them retrieves the chamber and can fold into the contact with another wall after the flat board through the extrusion, and remaining recovery chamber then normally carries out its recovery function, avoids leaving too big clearance between two adjacent walls, avoids the manual work to carry out the secondary and mends grey operation.
Wherein, an organ cover 27 is fixed on two opposite side walls of the plastering box 7 respectively, and the organ cover 27 is connected with the side wall of the kick-out plate 13 back to the discharge hole 11. Organ covers 27 are fixed on two opposite side walls of the plastering box 7 respectively, and the lower end of the material shifting plate 13 is in contact with the bottom of the sliding groove 12, so that low-grade sealing isolation is realized on two sides of the material shifting plate 13, and mortar is prevented from leaking in the plastering box 7.
In this embodiment, the overflow port 25 is formed in the upper end of the plastering surface of the plastering box 7, the discharge port 11 is located at the lower end of the plastering surface of the plastering box 7, an expansion port 28 communicated with the discharge port 11 is further formed in the lower end of the plastering surface of the plastering box 7, and the width of the expansion port 28 is gradually increased along a horizontal line in a direction away from the material stirring plate 13. In the implementation of the technical scheme, the mortar amount in the plastering box 7 is kept constant, when the stirring plate 13 extrudes mortar, the liquid level of the mortar can fluctuate, and in order to prevent the mortar from overflowing from the top of the plastering box 7, the upper section of the plastering surface of the plastering box 7 is provided with the overflow hole, so that when the liquid level of the mortar fluctuates, redundant mortar can directly move between the wall surface and the plastering surface from the overflow hole; the lower end of the plastering surface of the plastering box 7 is provided with an expansion port 28 communicated with the discharge port 11, and the width of the expansion port 28 increases progressively along the horizontal line towards the direction far away from the kick-out plate 13, so that the flow speed of the mortar pushed in the plastering box 7 before being attached to the wall surface is reduced, the excessive outflow amount of the mortar in unit time is avoided, and the overflowing amount of the mortar is reduced to the maximum extent.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.