Cement mortar paving device for construction

Abstract

The present invention relates to the technical field of construction auxiliary equipment, and more specifically, to a cement mortar paving device for construction, comprising a slurry storage box, a power device provided at the bottom of the slurry storage box, two sets of rotating wheels at the rear side being provided with connecting devices on the outside, a slurry spreading device provided between the left and right fixed frames, and a stirring device for mixing and conveying cement mortar provided inside the slurry storage box. In the cement mortar paving device for construction, after the dual-axis motor in the power device is started, the rotating wheels cooperate with the crawler to drive the entire device to move smoothly and uniformly on the wall, ensuring that the outflow of cement mortar always remains consistent, and the slurry spreading device is driven to move back and forth continuously through the connecting device, thereby simulating manual labor, flattening the outflowing cement mortar again and making seams, ensuring the flatness of the wall while also allowing subsequent bricks to fit more closely with the cement mortar when placed.

Description

Technical Field

[0001] The present invention relates to the technical field of building auxiliary equipment, in particular to a cement mortar paving device for building construction. Background Art

[0002] Wallbuilding is an essential step in construction, not only affecting the structural safety of a building but also directly impacting its aesthetics and functionality. During the wallbuilding process, bricks, cement, mortar, and other materials must be combined and bonded according to specific process requirements to form the wall. In modern construction projects, to save costs and improve work efficiency, mortar spreaders are often used to replace manual application of cement mortar onto bricks during the wallbuilding process.

[0003] Although the existing mortar spreader can quickly complete the laying of cement mortar on the wall bricks, it still requires manual pulling of the handle at the front end of the mortar spreader to drive the mortar spreader forward. After a long period of work, the worker moves the mortar spreader at an uneven speed, which causes the outflow of cement mortar to change, resulting in uneven smearing or excessive gaps between bricks, thereby affecting the flatness of the wall. At the same time, with the existing mortar spreader, the cement mortar will be directly exposed to the air, and moisture will easily evaporate, which will affect the concentration of the cement mortar, thereby reducing the outflow speed of the cement mortar and affecting the laying effect of the cement mortar.

[0004] In view of this, we propose a cement mortar paving device for construction.

[0005] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a cement mortar paving device for construction to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A cement mortar paving device for construction, comprising a mortar storage box, the bottom of which is provided with a power device;

[0009] The power device includes two fixed frames arranged parallel to each other, a dual-axis motor arranged between the two fixed frames near the rear end, rotating wheels arranged at the corners of the outer walls of the fixed frames, crawler tracks sleeved on the outside of the front and rear sets of rotating wheels, a rotating shaft arranged between the two fixed frames near the front end, and a plurality of transmission parts arranged on the outer walls of the rotating shaft;

[0010] The two sets of rotating wheels located at the rear side are both provided with a connecting device on the outside, which includes a fixed plate, a connecting shaft arranged near the bottom of the fixed plate, a shaft gear sleeved on the outer wall of the connecting shaft, a docking gear arranged near the top of the outer wall of the fixed plate, a wheel body cam arranged inside the docking gear, a connecting rod sleeved outside the wheel body cam, a moving block arranged at the bottom end of the connecting rod, and a fixing frame for providing a moving range for the moving block;

[0011] A slurry spreading device is provided between the left and right fixed frames, and the slurry spreading device comprises a trapezoidal frame, an adjustment portion provided inside the trapezoidal frame, and a plurality of slit strips regularly provided on the top surface of the trapezoidal frame near the rear end.

[0012] The interior of the slurry storage box is provided with a stirring device for stirring and conveying cement mortar.

[0013] In the technical solution of the present invention, the slurry storage box includes a fixed box body with an open top, a partition plate integrally formed on the inner wall of the fixed box body near the front end, a cover plate fixedly connected to the fixed box body and the top surface of the partition plate, a support frame fixedly connected to the bottom surface of the fixed box body by bolts, a limiting telescopic rod fixedly connected to the bottom surfaces of the left and right ends of the support frame, a mounting block fixedly connected to the bottom of the telescopic end of the limiting telescopic rod by bolts, a pressure spring sleeved on the outside of the limiting telescopic rod, and a limiting wheel rotatably connected to the outer wall of the mounting block.

[0014] In the technical solution of the present invention, a feed trough that passes through from top to bottom is provided on the inner bottom surface of the fixed box body near the rear end. The inner bottom surface of the fixed box body is inclined with the front higher and the back lower. The bottom end of the pressure spring is welded and fixed to the top surface of the mounting block, and the top end of the pressure spring is in conflict with the bottom surface of the support frame.

[0015] In the technical solution of the present invention, the top surface of the fixed frame is fixedly connected to the bottom surface of the fixed box by bolts, the top surface of the dual-axis motor is fixedly connected to the mounting plate on the bottom surface of the fixed box by bolts, the axles of the two groups of rotating wheels located on the rear side are coaxially connected to the output shafts of the dual-axis motor, and the axles of the two groups of rotating wheels located on the front side are clamped and fixed to the rotating shaft, and the left and right ends of the rotating shaft are respectively rotatably connected to the inside of the left and right groups of fixed frames.

[0016] In the technical solution of the present invention, the transmission part includes two groups of pulleys arranged in parallel and a transmission belt mounted on the outside of the two groups of pulleys. The pulley located on the rear side is fixedly connected to the outer wall of the rotating wheel shaft by a pin, and the pulley located on the front side is fixedly connected to the outer wall of the rotating shaft by a pin.

[0017] In the technical solution of the present invention, the top of the fixed plate is fixedly connected to the bottom surface of the fixed box by bolts, the connecting shaft is rotatably connected to the inside of the fixed plate, the inner end of the connecting shaft is clamped and fixed to the end of the axle of the rotating wheel, the shaft gear is fixed to the outer end of the connecting shaft by a bayonet pin, the docking gear is rotatably connected to the inside of the fixed plate, the docking gear and the shaft gear are engaged with each other, and the wheel body cam is clamped and fixed to the inside of the docking gear.

[0018] In the technical solution of the present invention, the two ends of the connecting rod are respectively rotatably connected to the wheel body cam shaft and the top bracket of the moving block, the moving block is slidably connected to the inside of the fixed frame, the longitudinal cross-section of the moving block is convex, the fixed frame is fixedly connected to the outer wall of the fixed box by screws, and a frame top slide groove with a longitudinal cross-section of a convex, the size of the frame top slide groove is adapted to the size of the moving block, and a frame wall groove connected to the frame top slide groove is provided on the outer wall of the fixed frame.

[0019] In the technical solution of the present invention, the longitudinal cross-section of the trapezoidal frame is a right-angled trapezoid, and frame through grooves that pass through the inside and outside are provided on the front and rear end side walls of the trapezoidal frame. The left and right ends of the trapezoidal frame are integrally formed with docking strips, and the docking strips are clamped and fixed to the outer side walls of the moving block. Fixed blocks with a longitudinal cross-section in the shape of a circle are welded and fixed on the top surfaces of the left and right ends of the trapezoidal frame. The internal sliding connection of the fixed block is a limited position plug-in block, and the slit strip is welded and fixed to the inner top surface of the trapezoidal frame.

[0020] In the technical solution of the present invention, the adjustment portion includes a fixed strip, a height limiting plate integrally formed on the bottom surface of the fixed strip near the center position, and fixed inserts integrally formed on the bottom surfaces of the left and right ends of the fixed strip. The height limiting plate and the fixed inserts are slidably connected to the top surface of the trapezoidal frame. A number of regularly distributed and front-to-back through-limiting grooves are provided inside the fixed insert, and the size of the limiting grooves is adapted to the size of the limiting insert.

[0021] In the technical solution of the present invention, the stirring device includes a stirring shaft whose left and right ends are rotatably connected to the inner walls of the left and right ends of the fixed box, a number of main bevel gears fixedly connected to the outer walls of the stirring shaft by pins, a number of secondary bevel gears meshing with the main bevel gears, and an auger fixedly connected to the inside of the secondary bevel gears by pins, the front end of the auger is rotatably connected to the inside of the partition plate, and the rear end of the auger is rotatably connected to the rear end inner wall of the fixed box.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The cement mortar paving device for building construction, after the dual-axis motor in the power device is started, the rotating wheels cooperate with the crawler to drive the entire equipment to move smoothly and uniformly on the wall, ensuring that the outflow of cement mortar is always consistent, and the mortar spreading device is driven to move back and forth continuously through the connecting device, thereby simulating manual labor, flattening the outflowing cement mortar again and opening seams, ensuring the flatness of the wall while also allowing subsequent bricks to fit better with the cement mortar when placed.

[0024] 2. The transmission part of the power device of the cement mortar paving device for construction transfers the power of the dual-shaft motor to the stirring device, which drives the stirring shaft to rotate, and drives the auger to continuously stir and transport the cement mortar through the mutually meshing main bevel gear and auxiliary bevel gear, so that the cement mortar maintains fluidity and ensures the laying effect of the cement mortar. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the invention;

[0026] Figure 2 It is a schematic cross-sectional view of the overall structure of the invention;

[0027] Figure 3 It is a schematic cross-sectional view of the structure of the slurry storage box in the invention;

[0028] Figure 4 It is an enlarged schematic diagram of part A in the invention;

[0029] Figure 5 It is a schematic diagram of the structure of the power device in the invention;

[0030] Figure 6 It is a structural diagram of the transmission part of the invention;

[0031] Figure 7 It is a schematic diagram of the location of some structures in the invention;

[0032] Figure 8 It is a structural schematic diagram of the connecting device in the invention;

[0033] Figure 9 It is a schematic cross-sectional view of the structure of the slurry spreading device in the invention;

[0034] Figure 10 It is an enlarged schematic diagram of part B in the invention;

[0035] Figure 11 It is a structural diagram of the adjustment part in the invention;

[0036] Figure 12 It is a structural schematic diagram of the stirring device in the invention.

[0037] Description of reference numerals:

[0038] Slurry storage box; 10. Fixed box body; 101. Feed chute; 11. Partition plate; 12. Cover plate; 13. Support frame; 14. Limit telescopic rod; 15. Pressure spring; 16. Mounting block; 17. Limit wheel;

[0039] Power unit; 20, fixed frame; 21, dual-axis motor; 22, rotating wheel; 23, crawler track; 24, rotating shaft; 25, transmission unit; 250, pulley; 251, transmission belt;

[0040] Connecting device; 30, fixed plate; 31, connecting shaft; 32, shaft gear; 33, docking gear; 34, wheel body cam; 35, connecting rod; 36, moving block; 37, fixed frame; 370, frame top slide; 371, frame wall slot;

[0041] Slurry spreading device; 40, trapezoidal frame; 41, docking strip; 42, adjustment portion; 420, fixed strip; 421, height limiting plate; 422, fixed insert; 4220, limiting groove; 43, fixed block; 44, limiting insert; 45, slit strip;

[0042] Stirring device; 50, stirring shaft; 51, main bevel gear; 52, auxiliary bevel gear; 53, auger. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] See also Figures 1-12 As shown, this embodiment provides a technical solution:

[0045] A cement mortar paving device for construction includes a mortar storage box 1, and a power device 2 is provided at the bottom of the mortar storage box 1;

[0046] In the present invention, the slurry storage box 1 includes a fixed box body 10 with an open top, a partition plate 11 integrally formed on the inner side wall of the fixed box body 10 near the front end, a cover plate 12 fixed to the top surface of the fixed box body 10 and the partition plate 11, a support frame 13 fixed to the bottom surface of the fixed box body 10 by bolts, a limiting telescopic rod 14 fixed to the bottom surfaces of the left and right ends of the support frame 13, a mounting block 16 fixed to the bottom of the telescopic end of the limiting telescopic rod 14 by bolts, a pressure spring 15 sleeved on the outside of the limiting telescopic rod 14, and a limiting wheel 17 rotatably connected to the outer wall of the mounting block 16;

[0047] Furthermore, a feed chute 101 is provided on the inner bottom surface of the fixed box body 10 near the rear end, and the inner bottom surface of the fixed box body 10 is inclined with the front higher and the back lower. The bottom end of the pressure spring 15 is welded and fixed to the top surface of the mounting block 16, and the top end of the pressure spring 15 is in conflict with the bottom surface of the support frame 13.

[0048] Furthermore, the fixed box 10 is used to provide a placement area for cement mortar, the discharge chute 101 is used to discharge the cement mortar from the interior of the fixed box 10 and spread it on the wall bricks, the partition plate 11 is used to provide an inspection area for the stirring device 5, the cover plate 12 is used to facilitate subsequent inspection and maintenance of the stirring device 5, the support frame 13 is used to provide a fixed platform for the limiting telescopic rod 14, the damping inside the limiting telescopic rod 14 and the pressure spring 15 ensure that the slurry storage box 1 as a whole is stable when it moves on the wall through the limiting wheel 17, and the mounting block 16 is used to provide a fixed platform for the limiting telescopic rod 14 and the pressure spring 15, and provide a rotation area for the limiting wheel 17.

[0049] In this embodiment, Figure 6-Figure 7 As shown, the power unit 2 includes two fixed frames 20 arranged parallel to each other, a dual-axis motor 21 arranged between the two fixed frames 20 near the rear end, rotating wheels 22 arranged at the corners of the outer walls of the fixed frames 20, crawler tracks 23 sleeved on the outside of the front and rear sets of rotating wheels 22, a rotating shaft 24 arranged between the two fixed frames 20 near the front end, and several sets of transmission parts 25 arranged on the outer walls of the rotating shaft 24;

[0050] Specifically, the top surface of the fixed frame 20 is fixedly connected to the bottom surface of the fixed box 10 by bolts, and the top surface of the dual-axis motor 21 is fixedly connected to the mounting plate on the bottom surface of the fixed box 10 by bolts. The axles of the two groups of rotating wheels 22 located on the rear side are coaxially connected to the output shaft of the dual-axis motor 21, and the axles of the two groups of rotating wheels 22 located on the front side are clamped and fixed with the rotating shaft 24. The left and right ends of the rotating shaft 24 are respectively rotatably connected to the inside of the left and right groups of fixed frames 20.

[0051] Furthermore, the transmission part 25 includes two sets of pulleys 250 arranged in parallel and a transmission belt 251 mounted on the outside of the two sets of pulleys 250. The pulley 250 located on the rear side is fixedly connected to the outer wall of the axle of the rotating wheel 22 by a pin, and the pulley 250 located on the front side is fixedly connected to the outer wall of the rotating shaft 24 by a pin.

[0052] Furthermore, the fixed frame 20 is used to ensure the strength of the overall structure of the power device 2. After the dual-axis motor 21 is started, the rotating wheel 22 at the corner of the outer wall of the fixed frame 20 is driven to rotate through the rotating shaft 24 and the transmission part 25, thereby driving the crawler 23 to move, thereby driving the slurry storage box 1 as a whole to move on the wall bricks through the crawler 23. The pulley 250 and the transmission belt 251 in the transmission part 25 are used to transmit the power generated after the dual-axis motor 21 is started.

[0053] In this embodiment, Figure 7-Figure 8 As shown, the two sets of rotating wheels 22 at the rear side are both provided with a connecting device 3 on the outside. The connecting device 3 includes a fixed plate 30, a connecting shaft 31 provided near the bottom of the fixed plate 30, a shaft gear 32 sleeved on the outer wall of the connecting shaft 31, a docking gear 33 provided near the top of the outer wall of the fixed plate 30, a wheel body cam 34 provided inside the docking gear 33, a connecting rod 35 sleeved outside the wheel body cam 34, a moving block 36 provided at the bottom end of the connecting rod 35, and a fixing frame 37 for providing a moving range for the moving block 36.

[0054] Specifically, the top of the fixed plate 30 is fixedly connected to the bottom surface of the fixed box 10 by bolts, the connecting shaft 31 is rotatably connected to the inside of the fixed plate 30, the inner end of the connecting shaft 31 is clamped and fixed to the axle end of the rotating wheel 22, the shaft gear 32 is fixedly connected to the outer end of the connecting shaft 31 by a bayonet pin, the docking gear 33 is rotatably connected to the inside of the fixed plate 30, the docking gear 33 and the shaft gear 32 are engaged with each other, and the wheel body cam 34 is clamped and fixed to the inside of the docking gear 33.

[0055] Furthermore, the two ends of the connecting rod 35 are rotatably connected to the wheel body cam shaft 34 and the top bracket of the moving block 36 respectively, and the moving block 36 is slidably connected to the inside of the fixed frame 37. The longitudinal cross-section of the moving block 36 is convex, and the fixed frame 37 is fixedly connected to the outer wall of the fixed box 10 by screws. The interior of the fixed frame 37 is provided with a frame top slide groove 370 with a convex longitudinal cross-section. The size of the frame top slide groove 370 is adapted to the size of the moving block 36, and the outer wall of the fixed frame 37 is provided with a frame wall slot 371 connected to the frame top slide groove 370.

[0056] Furthermore, the fixed plate 30 is used to provide a rotation range for the connecting shaft 31 and the docking gear 33, and the connecting shaft 31 is used to provide a fixed base point for the shaft gear 32. As the rotating wheel 22 rotates, the connecting shaft 31 in the connecting device 3 is driven to rotate, and the shaft gear 32 and the docking gear 33 that are meshed with each other are driven to rotate, thereby driving the connecting rod 35 to continuously change its own position, thereby driving the position of the moving block 36 in the fixed frame 37 to continuously change, and the slurry spreading device 4 as a whole also moves back and forth with the moving block 36. The frame top slide groove 370 in the fixed frame 37 is used to provide a moving range for the moving block 36, and the frame wall groove 371 is used to provide an installation range for the docking strip 41 in the slurry spreading device 4 and the moving block 36.

[0057] In this embodiment, Figures 9-11 As shown, a slurry spreading device 4 is provided between the left and right fixed frames 37. The slurry spreading device 4 includes a trapezoidal frame 40, an adjusting portion 42 provided inside the trapezoidal frame 40, and a plurality of slit strips 45 regularly provided on the top surface of the trapezoidal frame 40 near the rear end.

[0058] Specifically, the longitudinal cross-section of the trapezoidal frame 40 is a right-angled trapezoid, and the front and rear side walls of the trapezoidal frame 40 are provided with frame through grooves that pass through the inside and outside. The left and right ends of the trapezoidal frame 40 are integrally formed with docking strips 41, and the docking strips 41 are snap-fitted and fixed to the outer wall of the moving block 36. Fixed blocks 43 with a longitudinal cross-section in the shape of a circle are welded and fixed on the top surfaces of the left and right ends of the trapezoidal frame 40. The internal sliding connection of the fixed block 43 is a limited position plug-in block 44, and the slit strip 45 is welded and fixed to the inner top surface of the trapezoidal frame 40.

[0059] Furthermore, the adjustment portion 42 includes a fixed strip 420, a height limiting plate 421 integrally formed on the bottom surface of the fixed strip 420 near the center position, and fixed insertion strips 422 integrally formed on the bottom surfaces of the left and right ends of the fixed strip 420. The height limiting plate 421 and the fixed insertion strip 422 are slidably connected to the top surface of the trapezoidal frame 40. The interior of the fixed insertion strip 422 is provided with a number of regularly distributed limiting grooves 4220 that pass through from front to back. The size of the limiting grooves 4220 is adapted to the size of the limiting plug 44.

[0060] Furthermore, the trapezoidal frame 40 is used to ensure the strength of the overall structure of the slurry spreading device 4, the docking strip 41 is used to be fixed to the moving block 36, so that the slurry spreading device 4 as a whole can move together with the moving block 36, the limiting plug 44 in the fixed block 43 is used to limit the fixed height of the adjustment part 42, and the slit strip 45 is used to leave a gap on the surface of the cement mortar to facilitate the subsequent laying of bricks and reduce the problem of stress concentration in the wall. After the cement mortar flows out of the discharge chute 101, it enters the interior of the trapezoidal frame 40, and the trapezoidal frame 40 and the height limiting plate 421 continuously flatten and squeeze the cement mortar, and evenly lay the cement mortar on the bricks of the wall.

[0061] In this embodiment, Figure 12 As shown, the interior of the slurry storage box 1 is provided with a stirring device 5 for stirring and conveying cement mortar;

[0062] Furthermore, the stirring device 5 includes a stirring shaft 50 whose left and right ends are rotatably connected to the inner walls of the left and right ends of the fixed box body 10, a number of main bevel gears 51 fixedly connected to the outer walls of the stirring shaft 50 by pins, a number of secondary bevel gears 52 meshing with the main bevel gears 51, and an auger 53 fixedly connected to the inside of the secondary bevel gears 52 by pins. The front end of the auger 53 is rotatably connected to the inside of the partition plate 11, and the rear end of the auger 53 is rotatably connected to the rear end inner wall of the fixed box body 10.

[0063] Furthermore, the stirring shaft 50 also rotates under the drive of the transmission part 25, driving the main bevel gear 51 and the auxiliary bevel gear 52 that fit each other to rotate, thereby driving the auger 53 to continuously stir and transport the cement mortar toward the discharge trough 101 in the fixed box 10.

[0064] Finally, it should be noted that the dual-axis motor 21 involved in the present invention is a universal standard part or a component known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, the dual-axis motor 21 is connected to the external power supply through a wire. The specific connection method should refer to the working principle of the present invention. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection methods are all well-known technologies in this field.

[0065] When using the cement mortar paving device for construction of the present invention, first, the mortar storage box 1 is placed as a whole on the wall bricks to be laid with cement, and the fixed position of the limiting telescopic rod 14 is adjusted to ensure that the outer circular plates of the limiting wheels 17 are attached to both sides of the wall bricks, and then the cement is poured into the interior of the fixed box 10;

[0066] Then, the dual-axis motor 21 in the power device 2 is started, and through the transmission part 25, the rotating wheel 22 is driven to rotate together, thereby driving the crawler 23 to move, thereby driving the entire device to move on the wall bricks;

[0067] At this time, the stirring shaft 50 in the stirring device 5 also rotates under the drive of the transmission part 25, thereby driving the main bevel gear 51 and the auxiliary bevel gear 52 that fit together to rotate, thereby driving the auger 53 to continuously stir and transport the cement mortar toward the discharge chute 101 in the fixed box 10;

[0068] As the rotating wheel 22 rotates, the connecting shaft 31 in the connecting device 3 is driven to rotate, and the mutually meshing shaft gear 32 and the docking gear 33 are driven to rotate, thereby driving the connecting rod 35 to continuously change its position, thereby driving the position of the moving block 36 in the fixed frame 37 to continuously change, and the slurry spreading device 4 as a whole also moves back and forth continuously with the moving block 36;

[0069] After the cement mortar flows out of the discharge chute 101, it enters the interior of the trapezoidal frame 40. The trapezoidal frame 40 and the height limit plate 421 continuously flatten and squeeze the cement mortar, and evenly lay the cement mortar on the bricks of the wall. The slit strips 45 leave gaps on the surface of the cement mortar to facilitate the subsequent laying of bricks.

[0070] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cement mortar paving device for construction, comprising a mortar storage box (1), characterized in that: A power device (2) is provided at the bottom of the slurry storage box (1); The power device (2) comprises two fixed frames (20) arranged parallel to each other, a dual-axis motor (21) arranged between the two fixed frames (20) near the rear end, rotating wheels (22) arranged at the corner positions of the outer side walls of the fixed frames (20), crawlers (23) sleeved on the outside of the front and rear sets of rotating wheels (22), a rotating shaft (24) arranged between the two fixed frames (20) near the front end, and a plurality of transmission parts (25) arranged on the outer side walls of the rotating shaft (24); The two groups of rotating wheels (22) located at the rear side are both provided with a connecting device (3) on the outside, the connecting device (3) comprising a fixed plate (30), a connecting shaft (31) arranged at a position near the bottom inside the fixed plate (30), a shaft gear (32) sleeved on the outer wall of the connecting shaft (31), a docking gear (33) arranged at a position near the top of the outer wall of the fixed plate (30), a wheel body convex shaft (34) arranged inside the docking gear (33), a connecting rod (35) sleeved on the outside of the wheel body convex shaft (34), a moving block (36) arranged at the bottom end of the connecting rod (35), and a fixing frame (37) for providing a moving range for the moving block (36); A slurry spreading device (4) is provided between the left and right fixed frames (37), the slurry spreading device (4) comprising a trapezoidal frame (40), an adjustment portion (42) disposed inside the trapezoidal frame (40), and a plurality of slit strips (45) regularly disposed on the top surface of the trapezoidal frame (40) near the rear end. The slurry storage box (1) is provided with a stirring device (5) for stirring and conveying cement mortar; The slurry storage box (1) comprises a fixed box body (10) with an open top surface, and a partition plate (11) integrally formed on the inner side wall of the fixed box body (10) near the front end; The stirring device (5) comprises a stirring shaft (50) whose left and right ends are respectively rotatably connected to the inner side walls of the left and right ends of the fixed housing (10), a plurality of main bevel gears (51) fixedly connected to the outer side wall of the stirring shaft (50) via a bayonet, a plurality of auxiliary bevel gears (52) meshing with the main bevel gears (51), and an auger (53) fixedly connected to the inside of the auxiliary bevel gears (52) via a bayonet, wherein the front end of the auger (53) is rotatably connected to the inside of the partition plate (11), and the rear end of the auger (53) is rotatably connected to the rear end inner side wall of the fixed housing (10).

2. The cement mortar paving device for construction according to claim 1, characterized in that: The slurry storage box (1) comprises a cover plate (12) fixedly connected to the top surface of the fixed box body (10) and the partition plate (11), a support frame (13) fixedly connected to the bottom surface of the fixed box body (10) by bolts, a limiting telescopic rod (14) fixedly connected to the bottom surfaces of the left and right ends of the support frame (13), a mounting block (16) fixedly connected to the bottom of the telescopic end of the limiting telescopic rod (14) by bolts, a pressure spring (15) sleeved on the outside of the limiting telescopic rod (14), and a limiting wheel (17) rotatably connected to the outer side wall of the mounting block (16).

3. The cement mortar paving device for construction according to claim 2, characterized in that: The bottom surface of the fixed box (10) is provided with a feed trough (101) extending vertically near the rear end. The bottom surface of the fixed box (10) is inclined with the front higher and the rear lower. The bottom end of the pressure spring (15) is welded and fixed to the top surface of the mounting block (16). The top end of the pressure spring (15) contacts the bottom surface of the support frame (13).

4. The cement mortar paving device for construction according to claim 2, characterized in that: The top surface of the fixed frame (20) is fixedly connected to the bottom surface of the fixed box (10) by bolts, and the top surface of the dual-axis motor (21) is fixedly connected to the mounting plate on the bottom surface of the fixed box (10) by bolts. The axles of the two groups of rotating wheels (22) located on the rear side are coaxially connected to the output shaft of the dual-axis motor (21), and the axles of the two groups of rotating wheels (22) located on the front side are fixedly engaged with the rotating shaft (24). The left and right ends of the rotating shaft (24) are rotatably connected to the inside of the two groups of fixed frames (20) on the left and right sides respectively.

5. The cement mortar paving device for construction according to claim 1, characterized in that: The transmission part (25) includes two sets of pulleys (250) arranged in parallel and a transmission belt (251) sleeved on the outside of the two sets of pulleys (250). The pulley (250) located on the rear side is fixedly connected to the outer side wall of the axle of the rotating wheel (22) through a bayonet, and the pulley (250) located on the front side is fixedly connected to the outer side wall of the rotating shaft (24) through a bayonet.

6. The cement mortar paving device for construction according to claim 2, characterized in that: The top of the fixing plate (30) is fixedly connected to the bottom surface of the fixing box (10) by bolts, the connecting shaft (31) is rotatably connected to the inside of the fixing plate (30), the inner end of the connecting shaft (31) is fixedly engaged with the end of the axle of the rotating wheel (22), the shaft gear (32) is fixedly connected to the outer end of the connecting shaft (31) by a bayonet, the docking gear (33) is rotatably connected to the inside of the fixing plate (30), the docking gear (33) and the shaft gear (32) are meshed with each other, and the wheel body cam (34) is fixedly engaged with the inside of the docking gear (33).

7. The cement mortar paving device for construction according to claim 6, characterized in that: The two ends of the connecting rod (35) are rotatably connected to the wheel body cam shaft (34) and the top bracket of the moving block (36), respectively. The moving block (36) is slidably connected to the inside of the fixed frame (37). The longitudinal section of the moving block (36) is convex. The fixed frame (37) is fixedly connected to the outer wall of the fixed box (10) by screws. The interior of the fixed frame (37) is provided with a frame top sliding groove (370) with a longitudinal section in the shape of a convex. The size of the frame top sliding groove (370) is adapted to the size of the moving block (36). The outer wall of the fixed frame (37) is provided with a frame wall slot (371) connected to the frame top sliding groove (370).

8. The cement mortar paving device for construction according to claim 1, characterized in that: The longitudinal cross-section of the trapezoidal frame (40) is a right-angled trapezoid, and frame through-grooves that penetrate inside and outside are provided on the front and rear side walls of the trapezoidal frame (40). The left and right ends of the trapezoidal frame (40) are integrally formed with docking strips (41), and the docking strips (41) are fixed to the outer wall of the moving block (36) by snapping. Fixed blocks (43) with a longitudinal cross-section in the shape of a Chinese character for "H" are welded and fixed to the top surfaces of the left and right ends of the trapezoidal frame (40), and the internal sliding connection of the fixed block (43) is connected to a limited position plug block (44). The slit strip (45) is welded and fixed to the internal top surface of the trapezoidal frame (40).

9. The cement mortar paving device for construction according to claim 8, characterized in that: The adjustment portion (42) comprises a fixed strip (420), a height limiting plate (421) integrally formed on the bottom surface of the fixed strip (420) near the center, and fixed inserts (422) integrally formed on the bottom surfaces of the left and right ends of the fixed strip (420), wherein the height limiting plate (421) and the fixed inserts (422) are slidably connected to the top surface of the trapezoidal frame (40), and a plurality of regularly distributed and front-to-back through-limiting grooves (4220) are provided inside the fixed insert (422), and the size of the limiting grooves (4220) is adapted to the size of the limiting insert (44).

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